JP7590771B2 - Switching switch built-in panel - Google Patents

Description

The present invention relates to a switch-over switch-integrated panel that incorporates a switch-over switch.

A conventional distribution board with a built-in switch is described in Patent Document 1. This distribution board includes a commercial power circuit section and a distributed power circuit section. The commercial power circuit section includes a main switch and a number of branch switches plugged into the secondary bus bar. The distributed power circuit section includes a switch for the distributed power source and a switch with a seismic relay. The switch with a seismic relay has two input terminals and one output terminal. The distributed power source is connected to the primary side of the switch for the distributed power source, and is further connected from the secondary side of the switch for the distributed power source to one input terminal of the switch with a seismic relay. The other input terminal of the switch with a seismic relay is connected to one branch switch of the commercial power circuit section. Furthermore, an emergency circuit is connected to the output terminal of the switch with a seismic relay as a load, and the supply from the commercial power source or the distributed power source can be switched by the switch with a seismic relay.

Patent No. 6351333

However, in the distribution board described in Patent Document 1, the seismic relay-equipped changeover switch and the switch for the distributed power source are arranged side by side in the left-right direction, and one input terminal of the seismic relay-equipped changeover switch is arranged at the lower end facing downward, while the secondary side of the switch for the distributed power source is arranged at the upper end facing upward. Therefore, in order to electrically connect one input terminal of the seismic relay-equipped changeover switch and the secondary side of the switch for the distributed power source, it is necessary to run the wiring so that one end of the wiring faces upward and the other end faces downward. Therefore, the wiring path is complicated in the distribution board described in Patent Document 1. Note that this problem is not limited to distribution boards having a main switch and a branch switch, but also occurs in general electrical boards that have built-in changeover switches that can switch power sources.

Therefore, the present invention aims to provide a panel with a built-in changeover switch that can simplify the wiring path.

The present invention is a changeover switch that switches a power source that supplies electricity to a load between a first power supply system and a second power supply system, a first circuit section that electrically connects the first power supply system and the changeover switch, a second circuit section that electrically connects the second power supply system and the changeover switch, and a housing that accommodates the changeover switch, the first circuit section, and the second circuit section, the changeover switch has a first side terminal section that is electrically connected to the first circuit section and a second side terminal section that is electrically connected to the second circuit section, the second circuit section has a second secondary terminal section that is electrically connected to the second side terminal section, the first side terminal section and the second side terminal section are perpendicular to the front-rear direction of the housing and are arranged in one of a first direction and a second direction that are perpendicular to each other, the first side terminal section is arranged toward one side of the one direction, the second side terminal section is arranged toward the other side of the one direction, and the second side terminal section and the second secondary terminal section are arranged to face each other in the one direction.

According to the above configuration, the first side terminal portion and the second side terminal portion are arranged in one of the first direction and the second direction, the first side terminal portion is arranged toward one side of the one direction, and the second side terminal portion is arranged toward the other side of the one direction. Therefore, for example, the first side terminal portion can be electrically connected to the first circuit portion on one side of the first direction as the one direction, and the second side terminal portion can be electrically connected to the second circuit portion on the other side of the first direction. Furthermore, the second side terminal portion and the second secondary terminal portion are arranged to face each other in the one direction. Therefore, for example, when the second side terminal portion and the second secondary terminal portion are electrically connected using a conductive connection portion, the conductive connection portion can be arranged linearly in the first direction to electrically connect the second side terminal portion and the second secondary terminal portion.

The second circuit section includes a second electrical device having an equipment secondary terminal section provided at one end in the one direction and an equipment primary terminal section provided at the other end in the one direction, the equipment primary terminal section being electrically connected to the second power supply system, the equipment secondary terminal section being electrically connected to the second side terminal section as the second secondary terminal section, and the housing may be provided on the other side in the one direction of the equipment primary terminal section with a second conductor that inserts a second conductor from the outside to the inside of the housing to electrically connect the second power supply provided in the second power supply system and the equipment primary terminal section.

According to the above configuration, the second conductor is inserted from the outside to the inside of the housing through the second conductor insertion portion and connected to the device primary terminal portion in the one direction, and the device secondary terminal portion and the second side terminal portion can be connected in the one direction through the linear conductive connection portion, which makes wiring easier and simplifies the wiring path.

The first circuit section includes a terminal block having a first primary terminal portion electrically connected to the first power supply system, the first primary terminal portion is arranged toward one side of the other direction perpendicular to the one direction and the front-rear direction, a first conductor connecting a first power supply provided in the first power supply system and the first primary terminal portion is configured to be connectable to the first primary terminal portion in a direction extending from the first primary terminal portion toward one side of the other direction, and the housing may be provided with a first conductor insertion portion that inserts the first conductor from the outside to the inside of the housing on one side of the other direction of the terminal block or the changeover switch.

According to the above configuration, the first primary terminal portion is arranged toward one side of the other direction perpendicular to the one direction and the front-rear direction, and the first conductor insertion portion is provided on one side of the other direction of the terminal block or the changeover switch, so that the first conductor can be easily introduced from the first conductor insertion portion into the inside of the housing and connected to the first primary terminal portion.

As described above, according to the present invention, the secondary terminal portion and the second secondary terminal portion are arranged to face each other in the one direction, so that the wiring path can be simplified when electrically connecting the changeover switch and the second circuit portion.

FIG. 1 is a schematic diagram of a power supply system switching system including a changeover switch-equipped board according to an embodiment of the present invention. FIG. 2 is an external view of the changeover switch built-in panel according to the embodiment. FIG. 3 is a front view of the inside of the changeover switch built-in panel according to the embodiment. FIG. 4 is an exploded perspective view of a first circuit portion of the changeover switch built-in board according to the embodiment. FIG. 5 is an enlarged perspective view of a first circuit portion of the changeover switch built-in board according to the embodiment. FIG. 6 is an enlarged perspective view of a first circuit portion of the changeover switch built-in panel according to the embodiment, in a state where a first conductive connecting portion of a first phase is detached. FIG. 7 is an explanatory diagram of a housing portion of a housing of a changeover switch built-in board according to the embodiment. FIG. 8 is an explanatory diagram of a cover structure of a changeover switch built-in panel according to the embodiment. FIG. 9 is an explanatory diagram of the first cover part and the second cover part of the changeover switch built-in panel according to the embodiment, showing the state in which both the first cover part and the second cover part are attached. FIG. 10 is an explanatory diagram of the first cover part and the second cover part of the changeover switch built-in panel according to the embodiment, showing a state in which only the first cover part has been removed. FIG. 11 is an explanatory diagram of a state in which the third cover part of the changeover switch built-in panel according to the embodiment is attached. FIG. 12 is an explanatory diagram of the operation of the changeover switch built-in panel according to the embodiment, and is an explanatory diagram of a state in which the first power supply system is connected to a load. FIG. 13 is an explanatory diagram of the operation of the changeover switch built-in panel according to the embodiment, and is an explanatory diagram of a state in which the second power supply system is connected to a load. FIG. 14 is an explanatory diagram of a first circuit portion of a changeover switch built-in board according to another embodiment of the present invention. FIG. 15 is a perspective view of a first electric device in the changeover switch built-in panel according to the embodiment.

The following describes a switchboard with a built-in switch according to one embodiment of the present invention, with reference to the attached drawings.

The switch-over switch-equipped panel is installed between multiple power supply systems and loads, and is configured to switch the connection state between the multiple power supply systems and the loads.

For example, as shown in FIG. 1, when a panel with a built-in changeover switch is installed in a house, a first power supply system P1 through which commercial power flows, a second power supply system P2 including a distributed power source, and a load system W1 including a load W10 are electrically connected to the panel with a built-in changeover switch 1.

First, we will explain the configuration of the first power supply system P1 and the second power supply system P2.

In this embodiment, the first power supply system P1 is a power supply system through which commercial power flows. The first power supply system P1 includes a first power source P10, which is a commercial power source (such as a power generation facility), and a first power distribution line P11 electrically connected to the first power source P10.

The second power supply system P2 is a power supply system that includes a distributed power source.

The second power supply system P2 includes a second power supply P20, which is a distributed power supply, a primary-side external electrical circuit (referred to as a relay power distribution circuit in this embodiment) P21 electrically connected to the primary side of the second power supply P20, and a secondary-side external electrical circuit (referred to as a second power distribution circuit in this embodiment) P22 electrically connected to the secondary side of the second power supply P20.

In this embodiment, the second power source P20 is configured by a storage battery. In other words, the second power source system P2 is a power source system that can charge and discharge the second power source P20.

In this embodiment, the second power source P20 is connected to a solar panel and is configured to receive power generated by a solar cell and be charged.

The relay distribution line P21 is an electrical path through which the power supplied to the second power source P20 flows. When the second power source P20 is composed of a power conditioner and a storage battery, the relay distribution line P21 carries power for operating the power conditioner. The second distribution line P22 is an electrical path through which the power released from the second power source P20 flows.

The load system W1 has a load W10 and a load distribution line W11 electrically connected to the load W10. In this embodiment, the load W10 is a distribution board. Specifically, the distribution board has a main switch, a bus bar, a branch switch, and a distribution housing.

As shown in FIG. 3, the board 1 with built-in changeover switch includes a first circuit section 2 electrically connected to the first power supply system P1, a second circuit section 3 electrically connected to the second power supply system P2, a load circuit section 4 to which the load system W1 is connected, a changeover switch 5 that switches the power source supplying electricity to the load system W1 between the first power supply system P1 and the second power supply system P2, a relay circuit section 6 electrically connected to the first circuit section 2 and the second power supply system P2, a housing 7 (see FIG. 2) that houses the first circuit section 2, the second circuit section 3, the relay circuit section 6, the changeover switch 5, and the load circuit section 4, and a cover structure 8 (see FIG. 8) that covers the live section within the housing 7.

In this embodiment, the direction in which the front and back of the changeover switch built-in panel 1 are lined up is called the front-to-rear direction, a direction perpendicular to the front-to-rear direction is called the first direction, and a direction perpendicular to the front-to-rear direction and the first direction is called the second direction.

Specifically, one of the first and second directions that are perpendicular to the front-to-rear direction and perpendicular to each other is referred to as the first direction, and the other direction is referred to as the second direction. In addition, the surface direction of the surface formed by the first direction and the second direction is referred to as the board surface direction.

In this embodiment, the first direction is the direction corresponding to the left-right direction when the installed changeover switch-equipped panel 1 is viewed from the front, and one side of the first direction is the left side, and the other side of the first direction is the right side.

The second direction corresponds to the up-down direction when the installed switchboard 1 with the built-in switch is viewed from the front, and one side of the second direction refers to the upper side, and the other side of the second direction refers to the lower side.

The first circuit section 2 is electrically connected to the first power supply system P1 and the changeover switch 5. The first circuit section 2 is disposed on one side of the changeover switch 5 in the first direction.

The first circuit section 2 of this embodiment has a first primary terminal section 20 electrically connected to the first power supply system P1, and a first secondary terminal section (not numbered) electrically connected to the changeover switch 5 (first side terminal section 500 described later) and the relay circuit section 6. In addition, in the first circuit section 2 of this embodiment, the first primary terminal section 20 also serves as the first secondary terminal section.

In the first circuit section 2, the first primary terminal section 20 is arranged toward one side in the second direction, and the first conductor P110 connected to the first power source P10 (the first power distribution path P11 in this embodiment) and the first primary terminal section 20 can be connected to the first primary terminal section 20 in a direction extending from the first primary terminal section 20 toward one side in the second direction.

The first circuit section 2 has a first electrical device 22, a first conductive connection section 23 fixed to the first electrical device 22 so as to be electrically conductive with the first conductor P110, and a partition member 24 for preventing a short circuit of the first conductive connection section 23.

The first electrical device 22 is a terminal block. The first electrical device 22 is also a terminal block that includes a first primary terminal 20 that is electrically connected to the first power supply system P1, and the first power distribution line P11 (the first conductor P110 of the first power distribution line P11) is fixed to the first primary terminal 20.

In this embodiment, the first electrical device 22 is disposed on one side of the changeover switch 5 in the first direction. This first electrical device 22 is disposed at a position spaced apart from the changeover switch 5 in the first direction.

The first electrical device 22 includes an electrical device primary terminal 220 to which the first conductor P110 can be fixed, and an electrical device secondary terminal (not numbered) to which the first conductive connection 23 can be fixed. In the first electrical device 22, the electrical device primary terminal 220 also serves as the electrical device secondary terminal.

The first primary terminal 20 of the first circuit section 2 is constituted by the device primary terminal 220 of the first electrical device 22, and the first secondary terminal may be constituted by the device secondary terminal of the first electrical device 22. However, in the first circuit section 2 of this embodiment, the device primary terminal 220 also serves as the first secondary terminal, so the first primary terminal 20 and the first secondary terminal are constituted by the device primary terminal 220 of the first electrical device 22.

The first electrical device 22 is configured so that when the first conductor P110 and the first conductive connection part 23 are fixed to the device primary terminal part 220, the first conductor P110 and the first conductive connection part 23 are in a mutually conductive state. The device primary terminal part 220 of this embodiment is configured so that the first conductor P110 and the first conductive connection part 23 can be fixed by a screw.

The device primary terminal section 220 may be configured to directly contact the first conductor P110 and the first conductive connection section 23 to provide electrical continuity between them, or may be configured to indirectly contact the first conductor P110 and the first conductive connection section 23 to provide electrical continuity between them.

In this embodiment, the device primary terminal portion 220 of the first electrical device 22 includes a device primary terminal portion 220 for the first phase (first phase terminal portion 220a), a device primary terminal portion 220 for the second phase (second phase terminal portion 220b), and a device primary terminal portion 220 for the third phase (third phase terminal portion 220c). In this embodiment, the first phase terminal portion 220a, the second phase terminal portion 220b, and the third phase terminal portion 220c are arranged so as to be lined up (aligned) in the first direction.

The switchboard 1 is designed to transmit power in a single-phase, three-wire system, and in this embodiment, the L2 phase is referred to as the first phase, the N phase is referred to as the second phase, and the L1 phase is referred to as the third phase.

In the first electrical device 22, the third phase terminal 220c is disposed on the furthest side in the first direction, the first phase terminal 220a is disposed on the furthest side in the first direction, and the second phase terminal 220b is disposed between the first phase terminal 220a and the third phase terminal 220c in the first direction.

As shown in FIG. 4, the first conductive connection part 23 has a connection fixing part 230 fixed to the terminal block, a first conductive part 231 extending in a first direction (the other side in the first direction in this embodiment) relative to the connection fixing part 230, and a second conductive part 232 extending in a second direction (the other side in the second direction in this embodiment) relative to the connection fixing part 230.

The connection fixing part 230, the first conductive part 231, and the second conductive part 232 are integrally formed, so that the tip side of the first conductive connection part 23, when the connection fixing part 230 is the base end, is shaped so that it branches to the other side in the second direction and the other side in the first direction. Note that the first conductive connection part 23 in this embodiment is made of a plate material having electrical conductivity.

The first conductive part 231 has a tip part 2310 that is fixed to the first side terminal part 500 of the changeover switch 5, which will be described later, and an intermediate part 2311 that is continuous with the tip part 2310 and the second conductive part 232 (an intermediate part 2321 of the second conductive part 232, which will be described later).

The intermediate portion 2311 of the first conductive portion 231 is a portion interposed between the second conductive portion 232 and the tip portion 2310 of the first conductive portion 231. In this embodiment, the intermediate portion 2311 of the first conductive portion 231 includes a base end conductive portion 2311a disposed between the first electrical device 22 and the relay circuit portion 6 (the other side in the second direction from the first electrical device 22), a tip end conductive portion 2311b disposed between the first electrical device 22 and the changeover switch 5 (the other side in the first direction from the first electrical device 22), and an identification mark 2311c attached to the front surface (one surface disposed toward the front side in the front-rear direction) of the tip end conductive portion 2311b. The identification mark 2311c may be formed by directly engraving the intermediate portion 2311 of the first conductive portion 231, or may be formed by printing on the surface with a laser or the like.

The identification marking 2311c indicates the type of the first conductive connection part 23. In this embodiment, the identification marking 2311c is composed of the characters "L1" indicating the L1 phase, "N" indicating the N phase, and "L2" indicating the L2 phase.

The second conductive part 232 has a tip part 2320 that is fixed to a relay primary terminal part (relay device primary terminal part) of the relay circuit part 6 described later, and an intermediate part 2321 that is connected to the tip part 2320 and the connection fixing part 230.

Here, the first circuit section 2 has three first conductive connections 23 corresponding to the number of device primary terminal sections 220. These three first conductive connections 23 are the first conductive connection 23 for the first phase (first phase conductive connection 23a), the first conductive connection 23 for the second phase (second phase conductive connection 23b), and the first conductive connection 23 for the third phase (third phase conductive connection 23c).

The three first conductive connection parts 23 are arranged such that the second conductive parts 232 are aligned in a row in the first direction when viewed from the front.

As shown in FIG. 5, the intermediate portion 2321 of each second conductive portion 232 is disposed forward (closer) in the front-to-rear direction than the adjacent intermediate portion 2321 on the other side in the first direction.

In addition, the intermediate portion 2321 of the second conductive portion 232 for the third phase, which is disposed furthest on one side in the first direction, is disposed furthest forward in the front-to-rear direction, and the intermediate portion 2321 of the second conductive portion 232 for the first phase, which is disposed furthest on the other side in the first direction, is disposed furthest rearward in the front-to-rear direction.

The first phase conductive connection part 23a is formed so that there is a step at the boundary between the connection fixing part 230 and the intermediate part 2321, and the tip part 2320 is formed so that it is positioned rearward in the fore-and-aft direction from the connection fixing part 230. Note that in the first phase conductive connection part 23a, there is no step at the boundary between the intermediate part 2321 and the tip part 2320, and the area from the boundary between the connection fixing part 230 and the intermediate part 2321 to the tip is formed flat.

Furthermore, the second conductive portion 232 of the third phase conductive connection portion 23c and the second conductive portion 232 of the second phase conductive connection portion 23b are formed in a convex shape such that the intermediate portion 2321 is convex toward the front side in the front-rear direction with respect to the connection fixing portion 230 and its own tip portion 2320. The height of the intermediate portion 2321 of the third phase conductive connection portion 23c (the height of the top of the intermediate portion 2321 when the positions of the connection fixing portion 230 and the tip portion 2320 are used as the reference in the front-rear direction) is greater than the height of the intermediate portion 2321 of the second phase conductive connection portion 23b (the height of the top of the intermediate portion 2321 when the positions of the connection fixing portion 230 and the tip portion 2320 are used as the reference in the front-rear direction).

In this embodiment, the connection fixing portion 230 of the first phase conductive connection portion 23a, the connection fixing portion 230 of the second phase conductive connection portion 23b, and the connection fixing portion 230 of the third phase conductive connection portion 23c are each set to the same position in the front-to-rear direction, and the tip portion 2320 of the second conductive portion 232 of the first phase conductive connection portion 23a, the tip portion 2320 of the second conductive portion 232 of the second phase conductive connection portion 23b, and the tip portion 2320 of the second conductive portion 232 of the third phase conductive connection portion 23c are each set to the same position in the front-to-rear direction.

Therefore, the tip 2320 of the second conductive part 232 of each of the first phase conductive connection part 23a, the second phase conductive connection part 23b, and the third phase conductive connection part 23c is positioned rearward in the fore-and-aft direction relative to the connection fixing part 230.

On the other hand, the first phase conductive connection portion 23a, the second phase conductive connection portion 23b, and the third phase conductive connection portion 23c have different positions in the front-to-rear direction of the intermediate portion 2321 of each second conductive portion 232, and therefore the positions in the front-to-rear direction of the base end conductive portions 2311a branching off from each second conductive portion 232 are also different from one another. Therefore, although the three base end conductive portions 2311a branch off (extend) in the same direction from the intermediate portion 2321 of the second conductive portion 232, they do not interfere with one another.

The three base-end conductive parts 2311a are arranged in a row with a gap between them in the front-to-rear direction. The three base-end conductive parts 2311a are arranged in a row from the front to the rear in the front-to-rear direction, starting with the part extending from the second conductive part 232 located on the furthest side in the first direction.

Therefore, when the changeover switch built-in panel 1 is viewed from the front, the base end side conductive part 2311a included in the first phase conductive connection part 23a and the base end side conductive part 2311a included in the second phase conductive connection part 23b are hidden behind the base end side conductive part 2311a included in the third phase conductive connection part 23c.

The three tip conductive parts 2311b are also arranged at different positions in the front-to-rear direction so that they do not interfere with each other.

The three tip-side conductive parts 2311b are configured such that their respective tips (the boundaries with the tip portion 2310 of the first conductive part 231) are aligned in the second direction when viewed from the front. The three tip-side conductive parts 2311b are aligned from the rear side to the front side in the front-rear direction in order of the tip portion 2310 located furthest to one side in the second direction.

In this embodiment, the tip side conductive portion 2311b included in the third phase conductive connection portion 23c (conductive connection portion 23 for the third phase (L1 phase)) is arranged at the frontmost side in the front-rear direction, the tip side conductive portion 2311b included in the second phase conductive connection portion 23b (conductive connection portion 23 for the second phase (N phase)) is arranged rearward in the front-rear direction and on one side in the second direction with respect to the tip side conductive portion 2311b included in the third phase conductive connection portion 23c, and the tip side conductive portion 2311b included in the first phase conductive connection portion 23a (conductive connection portion 23 for the first phase (L2 phase)) is arranged rearward in the front-rear direction and on one side in the second direction with respect to the tip side conductive portion 2311b included in the second phase conductive connection portion 23b and the third phase conductive connection portion 23c.

Therefore, the tip side conductive portion 2311b included in the first phase conductive connection portion 23a, the tip side conductive portion 2311b included in the second phase conductive connection portion 23b, and the tip side conductive portion 2311b included in the third phase conductive connection portion 23c are all exposed on the front side in the front-to-rear direction when viewed from the front. Accordingly, the identification markings 2311c attached to each tip side conductive portion 2311b are also exposed on the front side in the front-to-rear direction.

The partition member 24 is intended to prevent short circuits between the first conductive connection parts 23.

In this embodiment, in a front view, the first conductive part 231 included in the third phase conductive connection part 23c and the first conductive part 231 included in the second phase conductive connection part 23b cross the area on the lower side (the other side in the second direction) of the connection fixing part 230 included in the first phase conductive connection part 23a, and further, the first conductive part 231 included in the third phase conductive connection part 23c is arranged so as to also cross the area on the lower side (the other side in the second direction) of the connection fixing part 230 included in the second phase conductive connection part 23b.

Therefore, the partition member 24 is configured to insulate between the connection fixing portion 230 included in the first phase conductive connection portion 23a and the first conductive portion 231 included in the second phase conductive connection portion 23b and the first conductive portion 231 included in the third phase conductive connection portion 23c, and between the connection fixing portion 230 included in the second phase conductive connection portion 23b and the first conductive portion 231 included in the third phase conductive connection portion 23c.

More specifically, as shown in FIG. 6, the partition member 24 has a first partition portion 240 arranged between the connection fixing portion 230 included in the first phase conductive connection portion 23a and the first conductive portion 231 included in the second phase conductive connection portion 23b and the first conductive portion 231 included in the third phase conductive connection portion 23c, a second partition portion 241 arranged between the connection fixing portion 230 included in the second phase conductive connection portion 23b and the first conductive portion 231 included in the third phase conductive connection portion 23c, and a connecting portion 242 connected to the first partition portion 240 and the second partition portion 241.

The first partition section 240, the second partition section 241, and the connecting section 242 are all insulating.

As shown in FIG. 3, the second circuit section 3 is electrically connected to the second power supply system P2 and the changeover switch 5. The second circuit section 3 is also disposed on the other side of the changeover switch 5 in the first direction.

The second circuit section 3 has a second primary terminal section 30 electrically connected to the second power supply system P2, and a second secondary terminal section 31 electrically connected to the changeover switch 5 (second side terminal section 501 described later).

In the second circuit section 3, the second primary terminal section 30 is arranged facing the other side in the first direction, and the second power source P20 (in this embodiment, the second power distribution line P22) and the second conductor P220 connected to the second primary terminal section 30 can be connected to the second primary terminal section 30 in a direction extending from the second primary terminal section 30 to the other side in the first direction.

The second circuit section 3 of this embodiment has a second electrical device 32 that receives power from the second power supply system P2, and a second conductive connection section 33 that electrically connects the second electrical device 32 to a second side terminal section 501 of the changeover switch 5, which will be described later.

In this embodiment, the second electrical device 32 is disposed on the other side of the changeover switch 5 in the first direction. This second electrical device 32 is disposed at a position spaced apart from the changeover switch 5 in the first direction.

The second electrical device 32 has an equipment primary terminal section 320 electrically connected to the second power supply system P2, an equipment secondary terminal section 321 electrically connected to a second side terminal section 501 (described later) of the changeover switch 5 via a second conductive connection section 33, and a second functional section (not numbered).

The device primary terminal 320 and the device secondary terminal 321 are arranged side by side in the first direction, and the arrangement position of the device primary terminal 320 in the second direction is the same as the arrangement position of the device secondary terminal 321 in the second direction. Furthermore, in this embodiment, the second electrical device 32 is arranged so that the device primary terminal 320 faces the other side of the first direction and the device secondary terminal 321 faces one side of the first direction.

In addition, in the second electrical device 32 of this embodiment, the device primary terminal 320 constitutes the second primary terminal 30, and the device secondary terminal 321 constitutes the second secondary terminal 31. The device secondary terminal 321 of the second electrical device 32 is electrically connected to a second side terminal 501 (described later) of the changeover switch 5 as the second secondary terminal 31.

The second conductor P220 of the second power distribution line P22 is fixed to the device primary terminal 320. The second conductive connection 33 is fixed to the device secondary terminal 321. The device secondary terminal 321 in this embodiment is a so-called screw-type terminal, and is configured so that the second conductive connection 33 can be fixed by a screw. Similarly, the second conductor P220 is fixed to the device primary terminal 320 by a screw.

In this embodiment, the device primary terminal section 320 of the second electrical device 32 includes a device primary terminal section 320 for the first phase (first phase terminal section 320a), a device primary terminal section 320 for the second phase (second phase terminal section 320b), and a device primary terminal section 320 for the third phase (third phase terminal section 320c).

The secondary terminal portion 321 of the second electrical device 32 includes a secondary terminal portion 321 for the first phase (first phase terminal portion 321a), a secondary terminal portion 321 for the second phase (second phase terminal portion 321b), and a secondary terminal portion 321 for the third phase (third phase terminal portion 321c).

The first phase terminal portion 320a, the second phase terminal portion 320b, and the third phase terminal portion 320c of the device primary terminal portion 320 are arranged so as to be side-by-side (aligned) with each other in the second direction, and the first phase terminal portion 321a, the second phase terminal portion 321b, and the third phase terminal portion 321c of the device secondary terminal portion 321 are also arranged so as to be side-by-side (aligned) with each other in the second direction.

The second conductive connection part 33 is formed to extend along the first direction (i.e., formed in a linear shape). One end of the second conductive connection part 33 in the longitudinal direction is fixed to the device secondary terminal part 321.

The second circuit section 3 has three second conductive connections 33 corresponding to the number of device secondary terminals 321. These three second conductive connections 33 are respectively a second conductive connection 33 for the first phase (first phase conductive connection 33a), a second conductive connection 33 for the second phase (second phase conductive connection 33b), and a second conductive connection 33 for the third phase (third phase conductive connection 33c).

As described above, the first phase terminal portion 321a, the second phase terminal portion 321b, and the third phase terminal portion 321c of the device secondary terminal portion 321 are arranged to be aligned along the second direction, so that the three second conductive connection portions 33 are also aligned along the second direction when fixed to the first phase terminal portion 321a, the second phase terminal portion 321b, and the third phase terminal portion 321c, respectively.

The second electrical device in this embodiment is a circuit breaker. Therefore, when the second conductor P220 is fixed to the device primary terminal 320 and the second conductive connection 33 is fixed to the device secondary terminal 321, the second functional unit is configured to be switchable between a state in which the second power distribution line P22 and the second conductive connection 33 are electrically connected (closed state) and a state in which the second power distribution line P22 and the second conductive connection 33 are electrically disconnected (open state).

In this way, the second electrical device 32 can be switched between a state in which the second power supply system P2 and the changeover switch 5 are electrically connected and a state in which the second power supply system P2 and the changeover switch 5 are electrically disconnected.

The load circuit section 4 is electrically connected to the load W10 and the changeover switch 5. The load circuit section 4 also has a load primary terminal section 40 electrically connected to the changeover switch 5 (load side terminal section 502 described later) and a load secondary terminal section 41 electrically connected to the load W10.

The load circuit section 4 in this embodiment has a load electrical device 42 that receives power from the changeover switch 5, and a load conductive connection section 43 that is electrically connected to the changeover switch 5 and the load electrical device 42.

In this embodiment, the load electrical device 42 is disposed on the other side of the changeover switch 5 in the first direction. This load electrical device 42 is disposed at a distance from the changeover switch 5 in the first direction.

The load electrical device 42 has a load device primary terminal section 420 electrically connected to the load side terminal section 502 of the changeover switch 5 described later, a load device secondary terminal section 421 electrically connected to the load W10, and a load function section (not numbered).

In the load electrical device 42 of this embodiment, the load primary terminal section 40 is constituted by the load electrical device 42's load electrical device primary terminal section 420, and the load secondary terminal section 41 is constituted by the load electrical device 42's load electrical device secondary terminal section 421. The load electrical device 42's load primary terminal section 420 is electrically connected to a load side terminal section 502 of the changeover switch 5, which will be described later, as the load primary terminal section 40.

The load device primary terminal portion 420 and the load device secondary terminal portion 421 are arranged side by side in the first direction, with the load device primary terminal portion 420 being provided at one end of the load electrical device 42 in the first direction, and the load device secondary terminal portion 421 being provided at the other end of the load electrical device 42 in the first direction.

The load conductive connection part 43 is fixed to the load device primary terminal part 420. The load conductor W110 connected to the load power distribution line W11 is fixed to the load device secondary terminal part 421. The load device secondary terminal part 421 in this embodiment is a so-called screw-type terminal part, and is configured so that the load conductor W110 can be fixed by a screw. Similarly, the load conductive connection part 43 is fixed to the load device primary terminal part 420 by a screw.

The load electrical device 42 is arranged side by side on the other side in the second direction with respect to the second circuit section 3, the load electrical device 42's load electrical device primary terminal section 420 and the second electrical device 32's secondary terminal section 321 are arranged in the second direction, and the load electrical device 42's load electrical device secondary terminal section 421 and the second electrical device 32's primary terminal section 320 are arranged in the second direction. In this embodiment, the load electrical device 42 is arranged at a position spaced apart from the second electrical device 32 in the second direction.

In this embodiment, the load electrical device 42's load device primary terminal portion 420 includes a load device primary terminal portion 420 for the first phase (first phase terminal portion 420a), a load device primary terminal portion 420 for the second phase (second phase terminal portion 420b), and a load device primary terminal portion 420 for the third phase (third phase terminal portion 420c).

The load electrical device 42's load secondary terminal portion 421 includes a load secondary terminal portion 421 for the first phase (first phase terminal portion 421a), a load secondary terminal portion 421 for the second phase (second phase terminal portion 421b), and a load secondary terminal portion 421 for the third phase (third phase terminal portion 421c).

Furthermore, in the load electrical device 42, the first phase terminal portion 420a, the second phase terminal portion 420b, and the third phase terminal portion 420c of the load device primary terminal portion 420 are arranged so as to be lined up (aligned) in the second direction, and the first phase terminal portion 421a, the second phase terminal portion 421b, and the third phase terminal portion 421c of the load device secondary terminal portion 421 are also arranged so as to be lined up (aligned) in the second direction.

The load conductive connection portion 43 is formed to extend along the first direction (i.e., has a linear shape), and one end in the longitudinal direction is fixed to the load primary terminal portion 40.

The load circuit section 4 has three load conductive connections 43, corresponding to the number of the first phase terminal section 420a, the second phase terminal section 420b, and the third phase terminal section 420c. These three load conductive connections 43 are respectively the load conductive connection section 43 for the first phase (first phase conductive connection section 43a), the load conductive connection section 43 for the second phase (second phase conductive connection section 43b), and the load conductive connection section 43 for the third phase (third phase conductive connection section 43c).

As described above, the first phase terminal portion 420a, the second phase terminal portion 420b, and the third phase terminal portion 420c of the load device primary terminal portion 420 are arranged to be aligned along the second direction, so that the three load conductive connection portions 43 are aligned along the second direction when fixed to the first phase terminal portion 420a, the second phase terminal portion 420b, and the third phase terminal portion 420c, respectively.

The load electrical device 42 in this embodiment is a circuit breaker. Therefore, when the load conductive connection part 43 is fixed to the load device primary terminal part 420 and the load conductor W110 is fixed to the load device secondary terminal part 421, the load function part is configured to be switchable between a state in which the load conductive connection part 43 and the load conductor W110 are electrically connected (closed state) and a state in which the load conductive connection part 43 and the load conductor W110 are electrically disconnected (open state).

In this way, the load electrical device 42 can be switched between a state in which the changeover switch 5 and the load system W1 are electrically connected and a state in which the changeover switch 5 and the load system W1 are electrically disconnected.

The changeover switch 5 has a changeover main body 50 that switches the electrical connection state between the first circuit section 2 and the second circuit section 3 and the load circuit section 4, and a changeover control section 51 that operates the changeover main body 50.

The switching body 50 has a first side terminal 500 electrically connected to the first circuit 2 via the first conductive connection 23, a second side terminal 501 electrically connected to the second circuit 3 via the second conductive connection 33, and a load side terminal 502 electrically connected to the load system W1 via the load conductive connection 43.

In this embodiment, the first side terminal portion 500, the second side terminal portion 501, and the load side terminal portion 502 are so-called screw-type terminal portions, and are configured so that the first conductive connection portion 23, the second conductive connection portion 33, and the load conductive connection portion 43 can be fixed by screws.

The first side terminal portion 500 of the changeover switch 5 of this embodiment includes a first side terminal portion 500 for the first phase (first phase terminal portion 500a), a first side terminal portion 500 for the second phase (second phase terminal portion 500b), and a first side terminal portion 500 for the third phase (third phase terminal portion 500c). The first phase terminal portion 500a, the second phase terminal portion 500b, and the third phase terminal portion 500c are arranged so as to be lined up (aligned) in the second direction.

The second side terminal portion 501 of the changeover switch 5 of this embodiment includes a second side terminal portion 501 for the first phase (first phase terminal portion 501a), a second side terminal portion 501 for the second phase (second phase terminal portion 501b), and a second side terminal portion 501 for the third phase (third phase terminal portion 501c). The first phase terminal portion 501a, the second phase terminal portion 501b, and the third phase terminal portion 501c are arranged so as to be lined up (aligned) in the second direction.

The load side terminal portion 502 of the changeover switch 5 of this embodiment includes a load side terminal portion 502 for the first phase (first phase terminal portion 502a), a load side terminal portion 502 for the second phase (second phase terminal portion 502b), and a load side terminal portion 502 for the third phase (third phase terminal portion 502c). The first phase terminal portion 502a, the second phase terminal portion 502b, and the third phase terminal portion 502c are arranged so as to be lined up (aligned) in the second direction.

The first side terminal portion 500, the second side terminal portion 501, and the load side terminal portion 502 are provided at separate ends in the first direction of the changeover switch 5. In addition, in the changeover switch 5 of this embodiment, the first side terminal portion 500 and the second side terminal portion 501 are arranged side by side (aligned) in the first direction facing in opposite directions in the first direction.

More specifically, the first side terminal portion 500 is arranged toward one side in the first direction, the second side terminal portion 501 is arranged toward the other side in the first direction, and further, the second side terminal portion 501 faces the second secondary terminal portion 31 in the first direction.

Furthermore, the second side terminal portion 501 and the load side terminal portion 502 are arranged side by side in the second direction while facing the same direction in the first direction, the second side terminal portion 501 and the second secondary terminal portion 31 face each other in the first direction, and the load side terminal portion 502 and the load primary terminal portion 40 face each other in the first direction.

In this embodiment, the second side terminal portion 501 is disposed on one side in the second direction, and the load side terminal portion 502 is disposed on the other side in the second direction. Furthermore, the arrangement position of the second side terminal portion 501 in this embodiment in the first direction and the arrangement position of the load side terminal portion 502 in the first direction are different from each other. More specifically, the second side terminal portion 501 is disposed so as to be located on one side in the first direction relative to the load side terminal portion 502.

The first phase terminal portion 500a, the second phase terminal portion 500b, and the third phase terminal portion 500c of the first side terminal portion 500 are arranged in sequence in the second direction, and the first phase terminal portion 501a, the second phase terminal portion 501b, and the third phase terminal portion 501c of the second side terminal portion 501 are arranged in sequence in the second direction.

The first phase terminals 500a, 501a are arranged so that they are aligned in a straight line or in a substantially straight line (in a straight line or in a substantially straight line in the first direction) with their connection directions facing opposite each other in the first direction, the second phase terminals 500b, 501b are also arranged so that they are aligned in a straight line or in a substantially straight line (in a straight line or in a substantially straight line in the first direction) with their connection directions facing opposite each other in the first direction, and the third phase terminals 500c, 501c are also arranged so that they are aligned in a straight line or in a substantially straight line (in a straight line or in a substantially straight line in the first direction) with their connection directions facing opposite each other in the first direction.

In addition to the second side terminal portion 501, the first phase terminal portions 321a, 502a, 420a, the second phase terminal portions 321b, 502b, 420b, and the third phase terminal portions 321c, 502c, 420c are arranged in the second direction in each of the device secondary terminal portion 321 of the second electrical device 32, the load side terminal portion 502, and the load device primary terminal portion 420 of the load electrical device 42.

Furthermore, the second side terminal portion 501 and the secondary terminal portion 321 of the second electrical device 32 are configured such that their first phase terminal portions 501a, 321a face each other in the first direction, their second phase terminal portions 501b, 321b face each other in the first direction, and their third phase terminal portions 501c, 321c face each other in the first direction.

The second side terminal portion 501 and the secondary terminal portion 321 of the second electrical device 32 may face each other directly, or may be approximately facing each other without being completely facing each other.

For example, the first phase terminal portion 501a of the second side terminal portion 501 and the first phase terminal portion 321a of the secondary terminal portion 321 of the second electrical device 32 are arranged so that at least a portion of them face each other in the first direction, and the second phase terminal portion 501b of the second side terminal portion 501 and the second phase terminal portion 321b of the secondary terminal portion 321 of the second electrical device 32, and the third phase terminal portion 501c of the second side terminal portion 501 and the third phase terminal portion 321c of the secondary terminal portion 321 of the second electrical device 32 may also be arranged so that at least a portion of them face each other in the first direction.

Also, for example, if the first phase terminal portion 501a of the second side terminal portion 501 and the first phase terminal portion 321a of the secondary terminal portion 321 of the second electrical device 32 are arranged so that at least a portion of them face each other in the first direction, the orientation of the first phase terminal portion 501a of the second side terminal portion 501 and the orientation of the first phase terminal portion 321a of the secondary terminal portion 321 of the second electrical device 32 may intersect, the orientation of the second phase terminal portion 501b of the second side terminal portion 501 and the orientation of the second phase terminal portion 321b of the secondary terminal portion 321 of the second electrical device 32, and the orientation of the third phase terminal portion 501c of the second side terminal portion 501 and the orientation of the third phase terminal portion 321c of the secondary terminal portion 321 of the second electrical device 32 may also intersect.

The load side terminal portion 502 and the load device primary terminal portion 420 of the load electrical device 42 are configured such that their first phase terminal portions 502a, 420a face each other in the first direction, their second phase terminal portions 502b, 420b face each other in the first direction, and their third phase terminal portions 502c, 420c face each other in the first direction.

The load side terminal portion 502 and the load device primary terminal portion 420 of the load electrical device 42 may face each other directly, or may be approximately facing each other without being completely facing each other.

For example, the first phase terminal portion 502a of the load side terminal portion 502 and the first phase terminal portion 420a of the load device primary terminal portion 420 of the load electrical device 42 are arranged so that at least a portion of them face each other in the first direction, and the second phase terminal portion 502b of the load side terminal portion 502 and the second phase terminal portion 420b of the load device primary terminal portion 420 of the load electrical device 42, and the third phase terminal portion 502c of the load side terminal portion 502 and the third phase terminal portion 420c of the load device primary terminal portion 420 of the load electrical device 42 may also be arranged so that at least a portion of them face each other in the first direction.

Also, for example, if the first phase terminal portion 502a of the load side terminal portion 502 and the first phase terminal portion 420a of the load device primary terminal portion 420 of the load electrical device 42 are arranged so that at least a portion of them face each other in the first direction, the orientation of the first phase terminal portion 502a of the load side terminal portion 502 and the orientation of the first phase terminal portion 420a of the load device primary terminal portion 420 of the load electrical device 42 may cross, the orientation of the second phase terminal portion 502b of the load side terminal portion 502 and the orientation of the second phase terminal portion 420b of the load device primary terminal portion 420 of the load electrical device 42, and the orientation of the third phase terminal portion 502c of the load side terminal portion 502 and the orientation of the third phase terminal portion 420c of the load device primary terminal portion 420 of the load electrical device 42 may also cross.

Furthermore, in the second direction, within a band-shaped area A extending in the first direction and including the range from the first phase terminal portion 500a of the first side terminal portion 500 and the first phase terminal portion 501a of the second side terminal portion 501 to the third phase terminal portion 500c of the first side terminal portion 500 and the third phase terminal portion 501c of the second side terminal portion 501, the first secondary terminal portion (the first primary terminal portion 20, which also serves as the first secondary terminal portion in this embodiment) is disposed on one side of the first side terminal portion 500 in the first direction, and the second secondary terminal portion 31 is disposed on the other side of the second side terminal portion 501 in the first direction.

Therefore, the changeover switch 5 of this embodiment is disposed between the first circuit section 2 and the second circuit section 3 in the first direction. Specifically, as shown in FIG. 3, by being disposed within a strip-shaped area A that extends in the first direction, the changeover switch 5 is disposed between the first circuit section 2 and the second circuit section 3 that are disposed at the same position in the second direction.

The switching body 50 can be switched between a state (first power supply state) in which the first side terminal 500 and the load side terminal 502 are electrically connected and the second side terminal 501 and the load side terminal 502 are electrically disconnected as shown in FIG. 12, and a state (second power supply state) in which the first side terminal 500 and the load side terminal 502 are electrically disconnected and the second side terminal 501 and the load side terminal 502 are electrically connected as shown in FIG. 13. The switching control unit 51 is configured to switch between the first power supply state and the second power supply state by operating the switching body 50.

The switching control unit 51 may be configured to automatically switch between the first power supply state and the second power supply state of the switching main unit 50 in accordance with each power supply state, but may also be configured to manually switch between the first power supply state and the second power supply state, or to switch between the first power supply state and the second power supply state by remote control from outside.

The switching control unit 51 may be configured to, for example, switch the switching main unit 50 from the first power supply state to the second power supply state when it detects that the power supply from the first power supply system P1 has been interrupted, and to switch the switching main unit 50 from the second power supply state to the first power supply state when it detects that the power supply from the first power supply system P1 has been restored.

The relay circuit section 6 has a relay primary terminal section 60 electrically connected to the first circuit section 2 via the first conductive connection section 23, and a relay secondary terminal section 61 electrically connected to the second power supply system P2 via the relay conductor P210.

The relay circuit unit 6 of this embodiment has a relay electrical device 62 that receives power from the first power supply system P1 via the first circuit unit 2. Note that the relay electrical device 62 may be configured to supply power to the changeover switch 5 by adding it to commercial power when transmitting power to the first power supply system P1.

The relay electrical device 62 has a device primary terminal portion 620 to which the first conductive connection portion 23 is fixed, a device secondary terminal portion 621 to which the relay conductor P210 is fixed, and a relay function portion (not numbered).

In the relay circuit section 6 of this embodiment, the device primary terminal section 620 of the relay electrical device 62 constitutes the relay primary terminal section 60, and the device secondary terminal section 621 of the relay electrical device 62 constitutes the relay secondary terminal section 61.

The second conductive part 232 (the tip 2320 of the second conductive part 232) of the first conductive connection part 23 is fixed to the device primary terminal part 620 of the relay electrical device 62, and the relay conductor P210 is fixed to the device secondary terminal part 621 of the relay electrical device 62. The device secondary terminal part 321 of this embodiment is configured so that the relay conductor P210 can be fixed by a screw. Similarly, the tip part 2320 of the first conductive connection part 23 is fixed to the device primary terminal part 620 by a screw.

Furthermore, in the relay electrical device 62, the device primary terminal section 620 and the device secondary terminal section 621 are arranged to be aligned in the second direction. Also, the device primary terminal section 620 of the relay electrical device 62 is arranged to face the device primary terminal section 220 of the first electrical device 22 in the second direction.

In this embodiment, the primary terminal section 620 of the relay electrical device 62 includes a primary terminal section 620 for the first phase (first phase terminal section 620a), a primary terminal section 620 for the second phase (second phase terminal section 620b), and a primary terminal section 620 for the third phase (third phase terminal section 620c).

In this embodiment, the secondary terminal portion 621 of the relay electrical device 62 includes a secondary terminal portion 621 for the first phase (first phase terminal portion 621a), a secondary terminal portion 621 for the second phase (second phase terminal portion 621b), and a secondary terminal portion 621 for the third phase (third phase terminal portion 621c).

In the relay electrical device 62, the first phase terminal portion 620a, the second phase terminal portion 620b, and the third phase terminal portion 620c are arranged so as to be lined up (aligned) in the first direction, and the first phase terminal portion 621a, the second phase terminal portion 621b, and the third phase terminal portion 621c are also arranged so as to be lined up (aligned) in the first direction.

The relay electrical device 62 in this embodiment is a circuit breaker. Therefore, when the first conductive connection part 23 is fixed to the device primary terminal part 620 and the relay conductor P210 connected to the relay power distribution line P21 is fixed to the device secondary terminal part 621, the relay function part is configured to be switchable between a state in which the first conductive connection part 23 and the relay conductor P210 are connected (closed state) and a state in which the first conductive connection part 23 and the relay conductor P210 are electrically disconnected (open state).

In this way, the relay function unit can be switched between a state in which the first circuit unit 2 and the second power supply system P2 are electrically connected and a state in which the first circuit unit 2 and the second power supply system P2 are electrically disconnected.

The changeover switch 5, the second circuit section 3, and the load circuit section 4 are arranged so that they are within a range (width dimension) that includes from the first primary terminal section 20 (equipment primary terminal section 220 of the first electrical device 22) of the first circuit section 2 to the relay secondary terminal section 61 (equipment secondary terminal section 621 of the relay electrical device 62) of the relay circuit section 6 in the second direction, and are contained within a strip-shaped area B that extends in the first direction.

As shown in Fig. 7, the housing 7 has a storage section 70 capable of storing the first circuit section 2, the second circuit section 3, the load circuit section 4, the changeover switch 5, and the relay circuit section 6 therein, and an inner lid section 71 (see Fig. 2) attached to the front surface of the storage section 70. Although not shown in Fig. 7, the housing 7 has an outer lid section that covers the inner lid section 71 attached to the front surface of the storage section 70.

The storage section 70 has a circumferential ring-shaped frame section 700, a back section 701 located within the frame section 700, and a positioning structure 702 for positioning the equipment to be placed on the back section 701.

The frame 700 of this embodiment is formed to have a rectangular shape (rectangular shape) when viewed from the front. The frame 700 is also formed so that the front surface, which is arranged toward the front side in the front-to-rear direction of the housing 7, is located forward of the rear surface 701 in the front-to-rear direction of the housing 7, forming a rectangular closed area (rectangular shape when viewed from the front) in front of the rear surface 701. The front-to-rear direction of the housing 7 corresponds to the front-to-rear direction of the changeover switch-equipped panel 1.

The changeover switch-equipped panel 1 is installed by fixing the rear part 701 to a wall surface from the rear side. The rear part 701 is formed in a planar shape that extends in the panel surface direction.

The rear portion 701 is provided with a conductor insertion portion 7010 that penetrates in the front-rear direction. In this embodiment, the rear portion 701 is provided with multiple conductor insertion portions 7010.

These multiple conductor insertion portions 7010 include a first conductor insertion portion 7010a through which the first conductor P110 can be inserted from the inside to the outside of the housing 7, a second conductor insertion portion 7010b through which the second conductor P220 can be inserted from the inside to the outside of the housing 7, a load conductor insertion portion 7010c through which the load conductor W110 can be inserted from the inside to the outside of the housing 7, and a relay conductor insertion portion 7010d through which the relay conductor P210 can be inserted from the inside to the outside of the housing 7.

The first conductor insertion portion 7010a is provided on one side in the second direction of the first primary terminal portion 20 of the first electrical device 22 or the changeover switch 5 (on one side in the second direction of the first electrical device 22 in this embodiment). Therefore, the first conductor insertion portion 7010a is configured to allow the first conductor P110 to be inserted into and out of the housing 7 on one side in the second direction of the first primary terminal portion 20 of the first electrical device 22 or the changeover switch 5.

The first conductor insertion portion 7010a of this embodiment includes a first-side first conductor insertion portion 7010aa arranged on one side in the first direction and a switching-side first conductor insertion portion 7010ab arranged on the other side. Specifically, the first conductor insertion portion 7010a is divided into the first-side first conductor insertion portion 7010aa and the switching-side first conductor insertion portion 7010ab by a part of the back portion 701 along a virtual straight line in the second direction passing between the first electric device 22 and the changeover switch 5 separated in the first direction as a boundary. The first-side first conductor insertion portion 7010aa is arranged directly above the first electric device 22, and the switching-side first conductor insertion portion 7010ab is arranged between the changeover switch 5 and directly above the second electric device 32. In this embodiment, as shown in FIG. 3, the first conductor P110 is inserted into the inside of the housing 7 through the first-side first conductor insertion portion 7010aa.

The second conductor insertion portion 7010b is provided on the other side in the first direction of the device primary terminal portion 320 of the second electrical device 32. Therefore, the second conductor insertion portion 7010b is configured to allow the second conductor P220 to be inserted into and out of the housing 7 on the other side in the first direction of the device primary terminal portion 320 of the second electrical device 32.

The second conductor insertion portion 7010b is positioned on the other side of the second electrical device 32 in the first direction within the band-shaped area A, and its position in the second direction is the same as the position of the second conductor insertion portion 7010b in the second direction.

The load conductor insertion portion 7010c is provided on the other side in the first direction of the load device secondary terminal portion 421 of the load electrical device 42. Therefore, the load conductor insertion portion 7010c is configured to allow the load conductor W110 to be inserted into and out of the housing 7 on the other side in the first direction of the load device secondary terminal portion 421 of the load electrical device 42.

The load conductor insertion portion 7010c and the second conductor insertion portion 7010b are formed in a position aligned in the second direction and are formed so as to be continuous with each other.

The relay conductor insertion portion 7010d is provided on the other side in the second direction from the secondary terminal portion 621 of the relay electrical device 62. Therefore, the relay conductor insertion portion 7010d is configured to allow the relay conductor P210 to be inserted into and out of the housing 7 on the other side in the second direction from the secondary terminal portion 621 of the relay electrical device 62.

The positioning structure 702 has a second circuit section positioning section 7020 for positioning the second circuit section 3 relative to the rear section 701, a load circuit section positioning section 7021 for positioning the load circuit section 4 relative to the rear section 701, a changeover switch positioning section 7022 for positioning the changeover switch 5 relative to the rear section 701, a first circuit section positioning section 7023 for positioning the first circuit section 2 relative to the rear section 701, and a relay circuit section positioning section 7024 for positioning the relay circuit section 6 relative to the rear section 701.

In this embodiment, the second circuit section positioning section 7020 is configured to position the second electrical device 32.

The second circuit positioning portion 7020 is configured to abut against two intersecting side surfaces of the second electrical device 32. More specifically, the second circuit positioning portion 7020 has a first abutment portion 7020a that protrudes forward in the front-rear direction from the rear portion 701 and abuts against one side surface of the second electrical device 32 in the first direction, and a second abutment portion 7020b that protrudes forward in the front-rear direction from the rear portion 701 and abuts against one side surface of the second electrical device 32 in the second direction. -

The load circuit positioning unit 7021 in this embodiment is configured to position the load electrical device 42.

The load circuit positioning portion 7021 is configured to abut against two intersecting side surfaces of the load electrical device 42. More specifically, the load circuit positioning portion 7021 has a first abutment portion 7021a that protrudes forward in the front-rear direction from the rear portion 701 and abuts against one side surface of the load electrical device 42 in the first direction, and a second abutment portion 7021b that protrudes forward in the front-rear direction from the rear portion 701 and abuts against one side surface of the load electrical device 42 in the second direction. -

The changeover switch positioning portion 7022 is configured to abut against two intersecting side surfaces of the changeover switch 5. More specifically, the changeover switch positioning portion 7022 has a first abutment portion 7022a that protrudes forward in the front-to-rear direction from the rear portion 701 and abuts against one side surface of the changeover switch 5 in the first direction, and a second abutment portion 7022b that protrudes forward in the front-to-rear direction from the rear portion 701 and abuts against one side surface of the changeover switch 5 in the second direction.

The first circuit positioning portion 7023 has a second abutment portion 7023b that protrudes forward in the front-to-rear direction from the rear portion 701 and abuts against the other side of the first electrical device 22 in the second direction.

The relay circuit positioning portion 7024 has a first contact portion 7024a that protrudes forward in the front-to-rear direction from the rear portion 701 and abuts against one side surface of the relay electrical device 62 in the first direction, and a second contact portion 7024b that protrudes forward in the front-to-rear direction from the rear portion 701 and abuts against one side surface of the relay electrical device 62 in the second direction.

When attached to the housing 70, the inner lid 71 is configured to cover the front of the first circuit section 2, the second circuit section 3, the load circuit section 4, the changeover switch 5, and the relay circuit section 6. In addition, in the inner lid section 71 of this embodiment, a window section 710 is formed in accordance with the position of the non-charging section of the second circuit section 3 (specifically, the operation part of the second electric device 32), the non-charging section of the load circuit section 4 (specifically, the operation part of the load electric device 42), and the non-charging section of the relay circuit section 6 (specifically, the operation part of the relay electric device 62).

The second electrical device 32 and the load electrical device 42 are arranged with the operation direction of the operating part aligned with the first direction, and the relay electrical device 62 is arranged with the operation direction of the operating part aligned with the second direction. In this way, the second electrical device 32 and the load electrical device 42, which are arranged in close proximity to each other, are arranged so that the operation directions of the operating parts are in the same direction, and the relay electrical device 62, which is arranged at a distance from the second electrical device 32 and the load electrical device 42, is arranged so that the operation direction of the operating part is different from the operation direction of the operating parts of the second electrical device 32 and the load electrical device 42.

As shown in FIG. 8, the cover structure 8 has a first cover part 80 that covers the first conductive connection part 23, a second cover part 81 that covers the second conductive connection part 33, and a third cover part 82 that covers the load conductive connection part 43. Note that, although the second cover part 81 and the third cover part 82 in this embodiment are integrally formed, the second cover part 81 and the third cover part 82 may be separate bodies (see FIG. 11).

The first cover part 80 has a first protective part 800 that covers the base end of the first conductive part 231, and a second protective part 801 that covers the tip side of the base end of the first conductive part 231 and the second conductive part 232.

The first protective part 800 and the second protective part 801 are separately detachable, and are configured to be switchable between a closed state in which the first protective part 800 covers the base end of the first conductive part 231 from the front side, with the second protective part 801 covering the tip side of the base end of the first conductive part 231 and the second conductive part 232 from the front side, and an open state in which the first protective part 800 opens the front of the base end of the first conductive part 231 (see Figures 9 and 10).

In addition, when both the first protective part 800 and the second protective part 801 are installed, the first protective part 800 is disposed forward of the second protective part 801 in the front-to-rear direction, and the outer periphery of the first protective part and the outer periphery of the second protective part 801 partially overlap.

As shown in FIG. 11, the second cover portion 81 has a first protective portion 810 that covers the front of the second side terminal portion 501, a second side protective portion 811 that covers the front of the secondary device terminal portion 321 of the second electrical device 32, and an intermediate protective portion 812 that covers the front of the area between the second side terminal portion 501 and the secondary device terminal portion 321 of the second electrical device 32.

The third cover portion 82 has a first protective portion 820 that covers the front of the load side terminal portion 502, a second side protective portion 821 that covers the front of the load device primary terminal portion 420 of the load electrical device 42, and an intermediate protective portion 822 that covers the front of the area between the load side terminal portion 502 and the load device primary terminal portion 420 of the load electrical device 42.

The second cover part 81 and the third cover part 82 are configured so that they can be attached to and detached from the changeover switch 5, and the cover structure 8 of this embodiment has a cover side engagement part 83 that holds the second cover part 81 and the third cover part 82 to the changeover switch 5 while engaged with the changeover main body part 50 in order to ensure that the second cover part 81 and the third cover part 82 are attached and fixed to the changeover switch 5 (to ensure that they are not removed from the changeover switch 5).

In the cover structure 8 of this embodiment, the second cover part 81 and the third cover part 82 are integrally formed, and the cover side engagement part 83 is provided on the second cover part 81.

The cover side engagement portion 83 is erected at a position adjacent to the terminal portion of the second side terminal portion 501 in the second direction and is configured to engage between a pair of insulating wall portions 503 that face each other in the second direction.

In this embodiment, the cover side engagement portion 83 has a pair of flexible engagement portions 830 that are flexible and aligned in the direction in which the pair of insulating wall portions 503 are aligned (the second direction in this embodiment).

In this embodiment, the cover side engagement portion 83 is formed by the first protective portion 810 of the second cover portion 81. In addition, in the second cover portion 81, the first protective portion 810 is formed so as to extend outward from the intermediate protective portion 812, and this first protective portion 810 has a slit S formed therein, which extends from the tip end toward the base end.

Therefore, in the second cover part 81, a portion of the first protection part 810 on one side of the slit S (one side in the second direction) constitutes one flexible engagement part 830, and a portion of the first protection part 810 on the other side of the slit S (the other side in the second direction) constitutes the other flexible engagement part 830. In other words, the pair of flexible engagement parts 830 are configured to be aligned in the second direction via the slit S.

As described above, the second side terminal portion 501 of the changeover switch 5 includes a second side terminal portion 501 for the first phase (first phase terminal portion 501a), a second side terminal portion 501 for the second phase (second phase terminal portion 501b), and a second side terminal portion 501 for the third phase (third phase terminal portion 501c), so the cover structure 8 is configured to have three cover side engagement portions 83.

In this way, in the cover structure 8, the cover side engagement portion 83 engages with the switching body portion 50 (in this embodiment, a pair of opposing insulating wall portions 503 for the second side terminal portion 501), so that the second cover portion 81 and the third cover portion 82 can be maintained attached to the switching body portion 50.

In addition, if a slit S is formed between a pair of flexible engagement parts 830, as in the case of the cover side engagement part 83 of this embodiment, it becomes easier to arrange the pair of flexible engagement parts 830 between the insulating wall parts 503 that allow movement of the pair of flexible engagement parts 830.

In this embodiment, the cover side engaging portion 83 is formed only on the second cover portion 81 out of the second cover portion 81 and the third cover portion 82, but the cover side engaging portion 83 may be formed on both the second cover portion 81 and the third cover portion 82, or in the case where the second cover portion 81 and the third cover portion 82 are integrally formed, the cover side engaging portion 83 may be formed only on the third cover portion 82.

As described above, according to the changeover switch-equipped board 1 of this embodiment, the changeover switch 5 and the relay circuit section 6 that are aligned in the first direction with respect to the first circuit section 2 (the changeover switch 5 in this embodiment) have a terminal section (first side terminal section 500) that faces in the first direction the tip section 2310 of the first conductive section 231 that extends in the first direction, and therefore the first conductive section 231 can be connected to the first side terminal section 500 along the first direction.

The changeover switch 5 and the relay circuit section 6 that are aligned in the second direction with respect to the first circuit section 2 (relay circuit section 6 in this embodiment) have a relay primary terminal section 60 that faces in the second direction to the tip section 2320 of the second conductive section 232 that extends in the second direction, so that the second conductive section 232 can be connected to the relay primary terminal section 60 along the second direction.

In this way, the first conductive part 231 and the second conductive part 232 can be connected along the first direction or the second direction in which the changeover switch 5 or the relay circuit part 6 is aligned with the first circuit part 2, so that the wiring space can be reduced, which has the effect of making the changeover switch built-in panel 1 more compact.

In addition, in the first conductive connection portion 23 of this embodiment, the base end side conductive portion 2311a of the first conductive portion 231 is formed so as to extend straight from the second conductive portion 232 toward the connection target (first side terminal portion 500), so that it is possible to eliminate the space required to change the orientation of the first conductive portion 231 with respect to the direction in which the second conductive portion 232 extends from the connection fixing portion 230. Therefore, in this embodiment, space is saved between the first electrical device 22 and the relay electrical device 62.

In addition, in the changeover switch-equipped panel 1 of this embodiment, the first conductive connection part 23 is made of a conductive plate material, so that the first conductive connection part 23 can be formed into a shape that follows the wiring path, and the space required to change the orientation of the first conductive connection part 23 can be reduced.

In addition, in the changeover switch-equipped panel 1 of this embodiment, the base end side (middle part 2321) of the second conductive part 232 is formed to be located forward in the fore-and-aft direction from the connection fixing part 230 and the tip end 2320 of the second conductive part 232, and the first conductive part 231 branches off from the middle part 2321 of this second conductive part 232 in the first direction, so that the space behind the first conductive part 231 can be used, for example, as space for wiring, etc.

Furthermore, since the base-end conductive parts 2311a of each first conductive connection part 23 are arranged in a row in the front-to-rear direction, it is possible to prevent the space in which the multiple first conductive connection parts 23 are arranged from expanding in the second direction.

In particular, the three base-end conductive parts 2311a are arranged in a row from the front to the rear in the fore-and-aft direction in the order of extension from the second conductive part 232 that is arranged at the position furthest to one side in the first direction (the position furthest from the changeover switch 5 in the first direction), so that the multiple base-end conductive parts 2311a can be arranged close to each other in the fore-and-aft direction, and the multiple second conductive parts 232 can be arranged close to each other in the first direction. This makes it possible to prevent the space in which the multiple first conductive connecting parts 23 are arranged from expanding in the first direction.

Furthermore, in the changeover switch built-in panel 1 of this embodiment, the identification markings 2311c attached to the front surface of each tip-side conductive part 2311b are configured to be exposed forward (toward the viewer), so that the identification markings 2311c attached to each of the multiple first conductive connection parts 23 are easy to see, and the type of each first conductive connection part 23 can be easily distinguished.

The cover structure 8 of the changeover switch built-in board 1 of this embodiment is equipped with a first cover part 80 having a first protective part 800 that covers the connection fixing part 230 from the front side and a second protective part 801 that covers the first conductive part 231 and the second conductive part 232 from the front side. When the second protective part 801 covers the first conductive part 231 and the second conductive part 232 from the front side, the first protective part 800 is configured to be switchable between a closed state in which the first protective part 800 covers the connection fixing part 230 from the front side and an open state in which the first protective part 800 opens the front of the connection fixing part 230 of the second conductive part 232. Therefore, when only the first protective part 800 is in the open state, only the front of the connection fixing part 230 to which the first power supply system P1 fixed to the terminal block is connected is opened, and work on the connection fixing part 230 can be safely performed while the other parts of the first conductive connection part 23 are covered with the second protective part 801.

In addition, in the changeover switch built-in board 1 of this embodiment, the first side terminal portion 500 can be electrically connected to the first circuit portion 2 on one side in the first direction, and the second side terminal portion 501 can be electrically connected to the second circuit portion 3 on the other side in the first direction. Furthermore, since the second side terminal portion 501 and the second secondary terminal portion 31 are arranged to face each other in the first direction, when the second side terminal portion 501 and the second secondary terminal portion 31 are electrically connected using the second conductive connection portion 33, the second side terminal portion 501 and the second secondary terminal portion 31 can be electrically connected by arranging the second conductive connection portion 33 in a straight line in the first direction.

Specifically, the first phase terminal portion 501a, the second phase terminal portion 501b, and the third phase terminal portion 501c of the second side terminal portion 501 are arranged in a straight line in the first direction so as to face the first phase terminal portion 321a, the second phase terminal portion 321b, and the third phase terminal portion 321c of the device secondary terminal portion 321, respectively. Therefore, the second side terminal portion 501 and the second secondary terminal portion 31 can be electrically connected with the first phase conductive connection portion 33a, the second phase conductive connection portion 33b, and the third phase conductive connection portion 33c aligned in the second direction.

In addition, in the changeover switch-equipped panel 1 of this embodiment, the second conductor P220 is inserted from the outside to the inside of the housing 7 through the second conductor insertion portion 7010b and connected to the device primary terminal portion 220 in the first direction, and the device secondary terminal portion 321 and the second side terminal portion 501 can be connected in the first direction through the linear second conductive connection portion 33, making wiring easier and simplifying the wiring path.

Furthermore, in this embodiment, since the second conductor insertion portion 7010b is provided on the other side of the second electrical device 32 in the first direction in the band-shaped area A, the second conductor P220 can be introduced into the housing 7 from the opposite side of the second conductor insertion portion 7010b, and the second conductor P220 can be connected to the device primary terminal portion 320 from the other side of the first direction. Therefore, in this embodiment, the work of introducing the second conductor P220 into the housing 7 and the work of connecting the second conductor P220 to the device primary terminal portion 320 can be performed without significantly changing the orientation of the second conductor P220, so that the second conductor P220 can be easily and smoothly connected to the second electrical device 32, which makes it easier to perform wiring work.

In addition, the first primary terminal portion 20 is arranged toward one side in a second direction perpendicular to the first direction and the front-rear direction, and the first conductor insertion portion 7010a is provided on one side in the second direction of the first electrical device 22 or the changeover switch 5, which is the terminal block. Therefore, the first conductor P110 can be introduced into the inside of the housing 7 from the first conductor insertion portion 7010a without significantly changing the orientation of the first conductor P110, and the first conductor P110 can be connected to the first primary terminal portion 20. Therefore, the first conductor P110 can be easily and smoothly connected to the first electrical device 22, which makes it easy to perform wiring work.

Furthermore, in this embodiment, the first primary terminal 20 is arranged facing one side in the second direction, the first side first conductor insertion portion 7010aa is arranged on one side (directly above) of the terminal block as the first electric device 22 in the second direction, and the switching side first conductor insertion portion 7010ab is arranged on one side (directly above) of the changeover switch 5 and the second electric device 32 in the second direction. Then, the first conductor P110 introduced inside the housing 7 is connected to the first primary terminal 20 via the first side first conductor insertion portion 7010aa. Therefore, the first conductor P110 and the first primary terminal 20 can be easily connected in the second direction.

Since the second side terminal portion 501 and the second secondary terminal portion 31 are arranged to face each other in one direction, the wiring path can be simplified when electrically connecting the changeover switch 5 and the second circuit portion 3.

In addition, the second side terminal portion 501 and the load side terminal portion 502 are arranged side by side in the first direction while facing the other side of the first direction in the second direction, so that the second side terminal portion 501 and the load side terminal portion 502 can be separated in the second direction, and therefore the electrical connection between the second side terminal portion 501 and the load side terminal portion 502 can be separated (i.e., an insulation distance can be ensured). In addition, the second side terminal portion 501 and the second secondary terminal portion 31 can be electrically connected in the first direction, and the load side terminal portion 502 and the load primary terminal portion 40 can be electrically connected. Furthermore, the second side terminal portion 501 and the second secondary terminal portion 31 are arranged to face each other in the first direction, and the load side terminal portion 502 and the load primary terminal portion 40 are arranged to face each other in the first direction, so that the electrical connection between the second side terminal portion 501 and the second secondary terminal portion 31 and the electrical connection between the load side terminal portion 502 and the load primary terminal portion 40 can be separated.

In this embodiment, the second side terminal portion 501 is disposed on one side in the second direction, and the load side terminal portion 502 is disposed on the other side in the second direction. In the second direction, the second electrical device 32 is disposed on one side, and the load electrical device 42 is disposed on the other side, and the second electrical device 32 and the load electrical device 42 are spaced apart. Therefore, the connection between the second side terminal portion 501 and the second secondary terminal portion 31 via the second conductive connection portion 33 and the connection between the load side terminal portion 502 and the load primary terminal portion 40 via the load conductive connection portion 43 can be spaced apart in the second direction. This contributes to ensuring an insulation distance in the second direction.

Since the terminal portion of each phase of the second side terminal portion 501 and the terminal portion of each phase of the load side terminal portion 502 can be separated in the second direction, and the terminal portion of each phase of the device secondary terminal portion 321 and the terminal portion of each phase of the load device primary terminal portion 420 can be separated in the second direction, it is possible to suppress inter-phase short circuits between the terminal portions, and further, the first phase terminal portions 501a, 321a of the second side terminal portion 501 and the device secondary terminal portion 321 face each other in the first direction, and the second phase terminal portions 501b, 321b of the second side terminal portion 501 and the device secondary terminal portion 321 face each other in the first direction. The terminals of each phase face each other in the first direction, the third phase terminals 501c, 321c face each other in the first direction, and the first phase terminals 502a, 420a of the load side terminal 502 and the load device primary terminal 420 face each other in the first direction, the second phase terminals 502b, 420b face each other in the first direction, and the third phase terminals 502c, 420c face each other in the first direction. By facing the terminals of each phase in the first direction, the electrical connection can be simplified and inter-phase short circuits can be suppressed.

In this embodiment, in the second direction, the second side terminal portion 501 is arranged on one side, and the load side terminal portion 502 is arranged on the other side. Then, as shown in FIG. 3, the first phase terminal portion 501a, the second phase terminal portion 501b, and the third phase terminal portion 501c of the second side terminal portion 501 are arranged in order in the second direction, and the first phase terminal portion 502a, the second phase terminal portion 502b, and the third phase terminal portion 502c of the load side terminal portion 502 are arranged in order in the second direction. Furthermore, as shown in FIG. 3, in the second direction, the device secondary terminal portion 321 is arranged on one side, and the load device primary terminal portion 420 is arranged on the other side. Then, as shown in FIG. 3, the first phase terminal portion 321a, the second phase terminal portion 321b, and the third phase terminal portion 321c of the device secondary terminal portion 321 are arranged in the second direction, and the first phase terminal portion 420a, the second phase terminal portion 420b, and the third phase terminal portion 420c of the load device primary terminal portion 420 are arranged in the second direction. In addition, between the second side terminal portion 501 and the equipment secondary terminal portion, the first phase terminal portions 501a, 220a face each other in the first direction, the second phase terminal portions 501b, 220b face each other in the first direction, and the third phase terminal portions 501c, 220c face each other in the first direction, and between the load side terminal portion 502 and the load equipment primary terminal portion 420, the first phase terminal portions 502a, 420a face each other in the first direction, the second phase terminal portions 502b, 420b face each other in the first direction, and the third phase terminal portions 502c, 420c face each other in the first direction. Therefore, between the second side terminal 501 and the device secondary terminal 321, and between the load side terminal 502 and the load device primary terminal 420, the first phase terminals 502a, 321a, the second phase terminals 502b, 321b, and the third phase terminals 502c, 321c are arranged in this order from one side to the other side in the second direction. Therefore, the arrangement of the terminals of each phase is easy to understand in the second direction.

The second side terminal portion 501 and the load side terminal portion 502 are arranged side by side in the second direction facing the other side of the first direction, and the second side terminal portion 501 and the first side terminal portion 500 are arranged side by side in the first direction facing the opposite side in the first direction. Therefore, within the housing 7, the first circuit portion 2 is arranged on one side of the changeover switch 5 in the first direction, and the second circuit portion 3 is arranged on the other side, and wiring can be performed in the first direction between the first side terminal portion 500 and the second side terminal portion 501. This improves space efficiency and wiring efficiency within the housing 7 while ensuring an insulation distance between the terminal portions.

In this embodiment, the first side terminal portion 500 and the second side terminal portion 501 are arranged on one side of the second direction, and the load side terminal portion 502 is arranged on the other side of the second direction. Therefore, it is possible to distinguish between the supply of electricity to the changeover switch 5 on one side of the second direction and the supply of electricity from the changeover switch 5 on the other side of the second direction, making it easy to check the flow of electricity.

As a result, the second side terminal portion 501 and the load side terminal portion 502 can be separated in the second direction, and the electrical connection between the second side terminal portion 501 and the second secondary terminal portion 31 can be separated from the electrical connection between the load side terminal portion 502 and the load primary terminal portion 40, so that an insulation distance can be ensured, short circuits can be prevented, and safety can be improved.

The first secondary terminal portion and the second secondary terminal portion 31 are arranged on one side and the other side in the first direction within the strip-shaped area A including the first side terminal portion 500 and the second side terminal portion 501. Therefore, the first side terminal portion 500 of the changeover switch 5 and the first secondary terminal portion of the first circuit portion 2, which are connected to each other by the first conductive connection portion 23, can be arranged close to each other, and the second side terminal portion 501 of the changeover switch 5 and the second secondary terminal portion 31 of the second circuit portion 3 can be arranged close to each other, thereby simplifying the wiring path between the first circuit portion 2, the changeover switch 5, and the second circuit portion 3.

In this embodiment, the first phase terminal portion 220a, the second phase terminal portion 220b, and the third phase terminal portion 220c of the device primary terminal portion 220 as the first secondary terminal portion can be arranged within the strip area A, and the first phase terminal portion 321a, the second phase terminal portion 321b, and the third phase terminal portion 321c of the device secondary terminal portion 321 as the second secondary terminal portion 31 can be arranged. Therefore, since the terminal portions necessary for the electrical connection between the first circuit portion 2, the changeover switch 5, and the second circuit portion 3 can be arranged within the strip area A, the wiring path can be simplified when electrically connecting the first circuit portion 2, the changeover switch 5, and the second circuit portion 3.

As a result, the first side terminal portion 500 of the changeover switch 5 and the first secondary terminal portion of the first circuit portion 2, which are connected by the first conductive connection portion 23, can be arranged close to each other, and the second side terminal portion 501 of the changeover switch 5 and the second secondary terminal portion 31 of the second circuit portion 3 can be arranged close to each other, thereby simplifying the wiring path between the first circuit portion 2, the changeover switch 5, and the second circuit portion 3.

The switchboard 1 according to the present invention is not limited to the above embodiment, and various modifications can be made.

In the above embodiment, an example has been described in which the first power supply system P1 is a commercial power supply system and the second power supply system P2 is a power supply system including a distributed power source, but the first power supply system P1 may be a type of power supply system other than a commercial power supply system, and the second power supply system P2 may be a type of power supply system other than a power supply system including a distributed power source.

For example, the first power supply system P1 and the second power supply system P2 may have different power supply characteristics. That is, the first power supply system P1 may be a DC power supply and the second power supply system P2 may be an AC power supply, or the first power supply system P1 and the second power supply system P2 may both be DC. This makes it possible to connect and switch between power supplies with different characteristics depending on the load to be connected, and to supply a variety of power sources to the load.

In the above embodiment, the second power supply system P2 is a system in which a solar cell is connected to the second power supply P20 (a photovoltaic power generation system), but is not limited to this configuration. For example, the second power supply system P2 may be a system in which the second power supply P20 is configured with a storage battery mounted on an electric vehicle.

In the above embodiment, the second power supply system P2 is a rechargeable power supply system that can charge the second power source P20, but is not limited to this configuration. The second power supply system P2 may be, for example, a system in which the second power source P20 only has a power generation function.

In the above embodiment, the changeover switch-equipped panel 1 is installed in a house as an example, but the changeover switch-equipped panel 1 may be installed in a factory, for example. In addition, the changeover switch-equipped panel 1 may be installed not only inside a building, but also outside the building.

In addition, in the above embodiment, only the power output from the first circuit section 2 flows through the relay circuit section 6, but for example, power may also flow toward the first circuit section 2.

In the above embodiment, the second electrical device 32 is a circuit breaker, but is not limited to this configuration. For example, the second electrical device 32 may be another type of electrical device. The same applies to the relay electrical device 62 and the load electrical device 42. Also, the first electrical device 22 is a terminal block, but may be composed of an electrical device such as a circuit breaker, for example.

The device primary terminal 220 of the first electric device 22 is configured so that the first conductive connection 23 can be fixed by a screw, but for example, the device primary terminal 220 of the first electric device 22 may be configured so that the first conductive connection 23 can be fixed by a means other than a screw. That is, the device primary terminal 220 of the first electric device 22 may be configured by a terminal other than a screw fastening such as a plug-in connection instead of a screw-type terminal. The same applies to the device primary terminal 320 and device secondary terminal 321 of the second electric device 32, the load device primary terminal 420 and load device secondary terminal 421 of the load electric device 42, the first side terminal 500, second side terminal 501, and load side terminal 502 of the changeover switch 5, and the device primary terminal 620 and device secondary terminal 621 of the relay electric device 62.

In the above embodiment, the device primary terminal 220 of the first electrical device 22 is configured to have a first phase terminal 220a, a second phase terminal 220b, and a third phase terminal 220c, but is not limited to this configuration. For example, the device primary terminal 220 may have only the first phase terminal 220a, the first phase terminal 220a and the second phase terminal 220b, or may have a fourth phase terminal in addition to the first phase terminal 220a, the second phase terminal 220b, and the third phase terminal 220c. In other words, it is sufficient that the device primary terminal 220 includes at least the first phase terminal 220a.

In the above embodiment, the first conductive part 231 and the second conductive part 232 in the first conductive connection part 23 are integrally formed, but this configuration is not limited thereto. For example, the first conductive part 231 and the second conductive part 232 may be formed by combining parts that are formed separately.

In the above embodiment, the first conductive connection part 23 is made of a conductive plate material, but is not limited to this configuration. The first conductive connection part 23 may be made of a wire material.

In this case, the second conductive part 232 may be formed integrally with the first conductive part 231 as in the above embodiment, or may be attached separately to the first conductive part 231.

In the above embodiment, the first circuit section 2 is configured to have three first conductive connection parts 23, but is not limited to this configuration. For example, the first circuit section 2 may be configured to have one first conductive connection part 23, or may be configured to have two or four or more first conductive connection parts 23. In other words, it is sufficient that the first circuit section 2 is configured to have at least one first conductive connection part 23.

Although not specifically mentioned in the above embodiment, in addition to the first power supply state and the second power supply state, the changeover switch 5 may also be capable of switching to a neutral state in which the load circuit section 4 is not electrically connected to either the first power supply system P1 or the second power supply system P2.

This allows the load circuit section 4 to be electrically isolated from the first power supply system P1 and the second power supply system P2, thereby further improving electrical safety when inspecting load equipment connected to the load circuit section 4, etc.

Although not specifically mentioned in the above embodiment, the first conductive connection part 23 may be configured so that the second conductive part 232 is also screwed to the first electrical device 22. In this case, for example, the first electrical device 22 may be formed with a fixing base part 25 having a screw hole, as shown in Figures 14 and 15.

In the above embodiment, the changeover switch 5 is arranged in the first direction relative to the first circuit section 2, and the relay circuit section 6 is arranged in the second direction relative to the first circuit section 2, but this configuration is not limited to this. For example, the changeover switch 5 may be arranged in the second direction relative to the first circuit section 2, and the relay circuit section 6 may be arranged in the first direction relative to the first circuit section 2.

In other words, the changeover switch 5 and the relay circuit section 6 may be arranged so that one of them is aligned in the first direction relative to the first circuit section 2, and the other is aligned in the second direction relative to the first circuit section.

When the changeover switch 5 is arranged to be aligned with the first circuit section 2 in the first direction, it may be arranged on the other side of the first circuit section 2 in the first direction as in the above embodiment, or it may be arranged on one side of the first circuit section 2 in the first direction. Also, when the changeover switch 5 is arranged to be aligned with the first circuit section 2 in the second direction, it may be arranged on one side of the first circuit section 2 in the second direction, or it may be arranged on the other side of the first circuit section 2 in the second direction.

When the relay circuit section 6 is arranged to be aligned with the first circuit section 2 in the second direction, it may be arranged on the other side of the first circuit section 2 in the second direction as in the above embodiment, or it may be arranged on one side of the first circuit section 2 in the second direction. Also, when the relay circuit section 6 is arranged to be aligned with the first circuit section 2 in the first direction, it may be arranged on one side of the first circuit section 2 in the first direction, or it may be arranged on the other side of the first circuit section 2 in the first direction.

Furthermore, in the above embodiment, the first conductive connection part 23 has the first conductive part 231 extending in a first direction relative to the connection fixing part 230, and the second conductive part 232 extending in a second direction relative to the connection fixing part 230. However, the direction in which the first conductive part 231 and the second conductive part 232 extend relative to the connection fixing part 230 may be changed depending on the arrangement of the changeover switch 5 and the relay circuit part 6 relative to the first circuit part 2.

To explain more specifically, in the above embodiment, the first conductive part 231 extends to the other side in the first direction relative to the connection fixing part 230, but this configuration is not limited to this. The first conductive part 231 may extend to one side in the first direction relative to the connection fixing part 230, for example.

In the above embodiment, the second conductive part 232 extends to the other side in the second direction relative to the connection fixing part 230, but this configuration is not limited to this. The second conductive part 232 may extend to one side in the second direction relative to the connection fixing part 230, for example. Even in this case, the first conductive part 231 may be configured to extend to the other side in the first direction relative to the connection fixing part 230, or the first conductive part 231 may be configured to extend to one side in the first direction relative to the connection fixing part 230.

In the above embodiment, the second conductive part 232 is configured to extend along the second direction relative to the connection fixing part 230, but is not limited to this configuration. The second conductive part 232 may be configured to extend along the first direction relative to the connection fixing part 230, for example.

In this case, the second conductive part 232 may extend to one side in the first direction relative to the connection fixing part 230, or may extend to the other side in the first direction relative to the connection fixing part 230.

In addition, the first conductive part 231 extends in the second direction relative to the connection fixing part 230, but the direction in which the first conductive part 231 extends relative to the connection fixing part 230 may be one side in the second direction or the other side in the second direction.

In the above embodiment, the first side terminal portion 500 and the second side terminal portion 501 are arranged in a straight line in the first direction and are arranged so that their positions in the second direction are the same. However, this is not limited to the above, and for example, the positions of the first side terminal portion 500 and the second side terminal portion 501 in the second direction may be different from each other.

In the above embodiment, the first electric device 22 is disposed on one side of the changeover switch 5 in the first direction, and the second electric device 32 is disposed on the other side of the changeover switch 5 in the first direction. However, this is not limited to the above, and for example, the first electric device 22 may be disposed on one side of the changeover switch 5 in the second direction, and the second electric device 32 may be disposed on the other side of the changeover switch 5 in the second direction. In this case, it is also possible that at least the secondary terminal portion 321 of the device and the second side terminal portion 501 face each other in the second direction. Furthermore, in this case, the strip-shaped area A defined by the first phase terminal portions 500a, 501a, the second phase terminal portions 500b, 501b, and the third phase terminal portions 500c, 501c of the first side terminal portion 500 and the second side terminal portion 501 may extend in the second direction.

In the above embodiment, the second electrical device 32 and the load electrical device 42 are arranged on the other side of the changeover switch 5 in the first direction. However, this is not limited to this, and for example, the second electrical device 32 and the load electrical device 42 may be arranged on one side of the changeover switch 5 in the second direction.

In the above embodiment, the arrangement of the second side terminal portion 501 and the load side terminal portion 502 in the second direction has been described as being such that the second side terminal portion 501 is arranged on one side of the second direction and the load side terminal portion 502 is arranged on the other side of the second direction. However, this is not limiting, and for example, the second side terminal portion 501 may be arranged on the other side of the second direction and the load side terminal portion 502 may be arranged on one side of the second direction. In this case, the second circuit portion 3 is arranged on the other side of the second direction and the load circuit portion 4 is arranged on one side of the second direction.

In this case, the load side terminal portion 502 may be disposed in the same position as the first side terminal portion 500 or the second side terminal portion 501 in the second direction, or the load side terminal portion 502 may be disposed in front of or behind the first side terminal portion 500 or the second side terminal portion 501.

In the description of the band-shaped area A in the above embodiment, an example was given in which the arrangement position of the first side terminal portion 500 and the arrangement position of the second side terminal portion 501 in the second direction are the same. However, even if the arrangement positions of the first side terminal portion 500 and the second side terminal portion 501 in the second direction are different from each other, the band-shaped area A may be an area that includes the first phase terminal portion 500a of the first side terminal portion 500 and the first phase terminal portion 501a of the second side terminal portion 501 in the second direction to the third phase terminal portion 500c of the first side terminal portion 500 and the third phase terminal portion 501c of the second side terminal portion 501 in the second direction and that extends in the first direction.

In the above embodiment, the case where the changeover switch-containing board 1 includes the relay circuit section 6 has been described, but this is not limiting. For example, the changeover switch-containing board 1 may not include the relay circuit section 6, and an electric wire from an external device may be directly connected to the second conductive section 232 of the first conductive connection section 23, or the relay circuit section 6 may be provided outside the changeover switch-containing board 1. In this case, the first conductor insertion section 7010a may be disposed on the other side of the first circuit section 2 or the changeover switch 5 in the second direction. And the first primary terminal section 20 may be disposed facing the other side in the second direction.

In the above embodiment, the case where the changeover switch-equipped board 1 includes the load circuit section 4 has been described, but this is not limiting, and for example, the changeover switch-equipped board 1 may not include the load circuit section 4. In this case, the load conductor W110 may be connected to the load side terminal section 502 of the changeover switch 5.

In the load electrical device 42 in the above embodiment, the load electrical device primary terminal portion 420 is provided at an end portion on one side in the first direction, and the load electrical device secondary terminal portion 421 is provided at an end portion on the other side in the first direction. However, this is not limited thereto, and for example, in the load electrical device 42, the load electrical device primary terminal portion 420 may be provided at an end portion on the other side in the first direction, and the load electrical device secondary terminal portion 421 may be provided at an end portion on one side in the first direction.

In the above embodiment, the load electrical device 42 is arranged horizontally along the first direction, with the load electrical device primary terminal portion 420 facing one side of the first direction and the load electrical device secondary terminal portion 421 facing the other side of the first direction. However, for example, the load electrical device 42 may be arranged vertically along the second direction, with the load electrical device primary terminal portion 420 and the load electrical device secondary terminal portion 421 aligned in the second direction. In this case, one of the load electrical device primary terminal portion 420 and the load electrical device secondary terminal portion 421 may be arranged on one side of the second direction and the other on the other side of the second direction.

In the above embodiment, the changeover switch 5 is described as having a second side terminal portion 501 and a load side terminal portion 502 at the other end in the first direction. However, this is not limited to the above, and for example, the changeover switch 5 may have a second side terminal portion 501 and a load side terminal portion 502 at one end in the second direction.

The changeover switch 5 may also have a first side terminal portion 500 and a load side terminal portion 502 at one end in the first direction. In this case, the first side terminal portion 500 and the load side terminal portion 502 may be arranged so as to face the same direction in the first direction and to be aligned in the second direction. The load circuit portion 4 may be arranged on one side of the changeover switch 5 in the first direction.

In the above embodiment, a case has been described in which the second conductor insertion portion 7010b is disposed on the other side of the second primary terminal portion 30 in the first direction. However, this is not limited thereto, and for example, the second conductor insertion portion 7010b may be disposed on one side of the second primary terminal portion 30 in the first direction.

In the above embodiment, the device primary terminal portion 320 and the device secondary terminal portion 321 of the second electrical device 32 are disposed at the same position in the second direction. However, this is not limited thereto, and for example, the device primary terminal portion 320 and the device secondary terminal portion 321 of the second electrical device 32 may be disposed at different positions in the second direction.

In the above embodiment, the case where the conductor insertion portion 7010 is formed in the back surface portion 701 has been described. However, this is not limiting, and the conductor insertion portion 7010 may be provided in the frame portion 700. That is, the conductor insertion portion 7010 is provided so as to penetrate the frame portion 700 in the first direction or the second direction. Therefore, for example, the second conductor insertion portion 7010b may be formed by penetrating the frame portion 700 on one side or the other side in the second direction, or the frame portion 700 on the other side in the first direction.

In the above embodiment, the first conductor insertion portion 7010a is provided on one side of the first primary terminal portion 20 or the changeover switch 5 in the second direction. However, this is not limited to the above, and for example, the first conductor insertion portion 7010a may be disposed on one side of the first primary terminal portion 20 in the first direction.

In the above embodiment, a case has been described in which the first primary terminal portion 20 is arranged facing one side in the second direction. However, this is not limited to this, and for example, the first primary terminal portion 20 may be arranged facing one side or the other side in the first direction.

In the above embodiment, the first conductor insertion portion 7010a includes the first-side first conductor insertion portion 7010aa and the switching-side first conductor insertion portion 7010ab. However, this is not limiting, and for example, the first conductor insertion portion 7010a may be disposed directly above the first primary terminal portion 20 and the switching switch 5, and may be formed so as to be continuous in the first direction.

The first conductor insertion portion 7010a may be provided only directly above one side of the first primary terminal portion 20 or only directly above one side of the changeover switch 5 in the second direction.

In the above embodiment, as shown in FIG. 3, the second side terminal portion 501 and the load side terminal portion 502 are arranged at different positions in the first direction. However, for example, the second side terminal portion 501 and the load side terminal portion 502 may be arranged so that they are arranged at the same position in the first direction (i.e., lined up along a virtual straight line extending in the second direction).

In the second circuit section 3 of the above embodiment, the second primary terminal section 30 is disposed on the other side of the first direction, but this is not limiting, and for example, the second primary terminal section 30 may be disposed on one side of the second direction. In this case, the second primary terminal section 30 only needs to be configured so that the second conductor P220 can be connected in a direction that extends from the second primary terminal section 30 to one side of the second direction.

In the first electric device 22 of the above embodiment, the first phase terminal portion 320a, the second phase terminal portion 320b, and the third phase terminal portion 320c of the device primary terminal portion 320 are arranged so as to be aligned in the first direction, but this configuration is not limited to this. For example, in the first electric device 22, the first phase terminal portion 320a, the second phase terminal portion 320b, and the third phase terminal portion 320c may be arranged so as to be aligned in the second direction. In this case, the arrangement positions of the first phase terminal portion 320a, the second phase terminal portion 320b, and the third phase terminal portion 320c in the first direction may be the same (i.e., the first phase terminal portion 320a, the second phase terminal portion 320b, and the third phase terminal portion 320c are aligned in the second direction) or may be different from each other.

In the above embodiment, the device primary terminal portion 320 and the device secondary terminal portion 321 are arranged at the same position in the second direction. However, this is not limited to the above, and for example, the device primary terminal portion 320 and the device secondary terminal portion 321 of the second electrical device 32 may be arranged at different positions in the second direction.

In the above embodiment, the load circuit section 4 has a load electrical device 42 as a circuit breaker, but this is not limiting and the load circuit section 4 can be configured to include a power distribution circuit section. Specifically, the load circuit section 4 can be configured to have a main switch connected to the load side terminal section 502 of the changeover switch 5, and a plurality of branch switches connected via a busbar on the secondary side of the main switch. In this case, the housing 7 is large enough to accommodate the power distribution circuit section.

1... Switching switch built-in panel, 2... First circuit section, 3... Second circuit section, 4... Load circuit section, 5... Switching switch, 6... Relay circuit section, 7... Housing, 8... Cover structure

Claims (2)

A changeover switch that switches a power source that supplies electricity to a load between a first power source system and a second power source system;
a first circuit section electrically connecting the first power supply system and the changeover switch;
a second circuit section electrically connecting the second power supply system and the changeover switch;
a housing that accommodates the changeover switch, the first circuit section, and the second circuit section,
the changeover switch includes a first side terminal portion electrically connected to the first circuit portion and a second side terminal portion electrically connected to the second circuit portion,
the second circuit portion includes a second secondary terminal portion electrically connected to the second side terminal portion,
the first side terminal portion and the second side terminal portion are arranged in one of a first direction and a second direction that are perpendicular to a front-rear direction of the housing and perpendicular to each other, the first side terminal portion is arranged toward one side of the one direction, and the second side terminal portion is arranged toward the other side of the one direction,
the second side terminal portion and the second secondary terminal portion are disposed to face each other in the one direction,
the second circuit portion includes a second electric device having an equipment secondary terminal portion provided at one end portion in the one direction and an equipment primary terminal portion provided at the other end portion in the one direction,
the device primary terminal unit is electrically connected to the second power supply system,
the device secondary terminal portion is electrically connected to the second side terminal portion as the second secondary terminal portion,
A switching switch-equipped panel characterized in that the housing is provided with a second conductor insertion portion on the other side of the one direction from the equipment primary terminal portion, through which a second conductor for electrically connecting a second power source provided in the second power supply system to the equipment primary terminal portion is inserted from the outside to the inside of the housing . A changeover switch that switches a power source that supplies electricity to a load between a first power source system and a second power source system;
a first circuit section electrically connecting the first power supply system and the changeover switch;
a second circuit section electrically connecting the second power supply system and the changeover switch;
a housing that accommodates the changeover switch, the first circuit section, and the second circuit section,
the changeover switch includes a first side terminal portion electrically connected to the first circuit portion and a second side terminal portion electrically connected to the second circuit portion,
the second circuit portion includes a second secondary terminal portion electrically connected to the second side terminal portion,
the first side terminal portion and the second side terminal portion are arranged in one of a first direction and a second direction that are perpendicular to a front-rear direction of the housing and perpendicular to each other, the first side terminal portion is arranged toward one side of the one direction, and the second side terminal portion is arranged toward the other side of the one direction,
the second side terminal portion and the second secondary terminal portion are disposed to face each other in the one direction,
the first circuit portion includes a terminal block including a first primary terminal portion electrically connected to the first power supply system,
the first primary terminal is disposed toward one side of the other direction perpendicular to the one direction and the front-rear direction, and a first conductor connecting a first power source provided in the first power supply system and the first primary terminal is configured to be connectable to the first primary terminal in a direction extending from the first primary terminal toward the one side of the other direction,
A switching switch built-in panel characterized in that the housing has a first conductor insertion portion on one side of the other direction of the terminal block or the switching switch, through which the first conductor is inserted from the outside to the inside of the housing .