JP4598801B2 - Distribution board - Google Patents

Description

  The present invention relates to a distribution board.

Conventionally, there has been a distribution board for houses in which a panel is attached to the front side of the body (see, for example, Patent Document 1). This distribution board has a substantially rectangular box-shaped body whose front side is open, and a main switch and a plurality of branch switches are housed inside the body. In addition, a plurality of panels provided with opening windows at portions corresponding to the main switch and the branch switch are attached to the front surface side of the body, and the operation units of the main switch and the branch switch correspond to the openings. It is exposed to the front side through the window.
Japanese Patent No. 3622605 (paragraphs [0011]-[0015] and FIGS. 2 and 3)

  In recent years, the amount of electric power used in each home tends to increase, and as a result, the power lines stored in the distribution board are also thicker and harder. However, in the distribution board shown in Patent Document 1 described above, Since there is not enough space for storing the power line, there is a problem that the power line cannot be accommodated inside the body in the case of a thick and hard power line, and the panel cannot be attached. Further, for example, a space for storing the power line can be secured by increasing the dimension in the depth direction of the body. However, in this case, there is a problem that the thickness of the distribution board is increased and the size is increased. .

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a small distribution board that secures a storage space for a power line.

According to the first aspect of the present invention, a switch is mounted, and an opening is provided in a portion corresponding to the switch on one surface, and a case main body in which a power line is stored through an insertion hole provided on the other surface, and the opening is covered. The panel is attached to the case body, and the panel has a flat plate portion arranged in the vertical direction in the mounted state, and the operation portion of the switch is exposed to the front side on the flat plate portion. A window hole is provided, and a protruding part that protrudes to the front side from the edge part of the flat plate part is integrally provided, and at least a branching switch is provided as a switch, and the upper part in the mounted state in the panel The protrusion part is provided, The display part which displays the load name of a corresponding branch switch is provided in the site | part above a window hole in the attachment state in the said protrusion part, It is characterized by the above-mentioned.

  According to the first aspect of the present invention, since the space between the panel and the case main body can be greatly expanded by providing the protruding portion protruding to the front side on at least a part of the panel, the power line is thick and hard. Even if it exists, there exists an effect that a power line can be accommodated in this space, and therefore a panel can be reliably attached to a case main body. Also, because the panel is only partially thicker because of the protrusions, it is possible to reduce the size of the panel that is not protruding compared to the case where the thickness of the distribution board is increased overall. There is also an effect that can be done.

In addition , since the distribution board is usually installed at a high position on the wall surface in the house, when the distribution board is viewed from the bottom by providing the protruding part at the upper part of the panel in the mounted state Since the protruding portion is located at a distance, the protrusion of the protruding portion is not emphasized, and therefore the space for storing the power line can be expanded without giving a sense of pressure to the people in the residence. is there.

In addition , since the distribution board is usually installed at a high position on the wall surface in the house, the panel is provided with a protruding part at the upper part in the mounted state, and the protruding part is installed above the window hole in the mounted state. By providing the display part at the part, since the display part projects obliquely forward, the load name of the branch switch can be easily confirmed when viewed from the lower side.

  An embodiment of the present invention will be described with reference to FIGS. The distribution board A according to the present invention is attached to a wall surface of a house or the like, for example, and is used for supplying electric power to an electrical device in a home. In the following description, unless otherwise specified, the vertical and horizontal directions are defined in the direction shown in FIG. 1A, and the front of FIG. Accordingly, the right side of FIG. 2 is the rear side.

  As shown in FIGS. 1 to 3, the distribution board A of the present embodiment includes a horizontally long, substantially rectangular box-shaped body 1 and a rectangular frame that is formed to have substantially the same external dimensions as the body 1 and is attached to the front side of the body 1. A cover 2, a panel 4 attached to the cover 2 so as to cover the opening 2 a on the front surface side of the cover 2, and a bearing portion 24 provided on the cover 2 are pivotally supported so that the front surface side of the cover 2 can be freely opened and closed. The door body 3 is provided.

  The body 1 is, for example, a synthetic resin molded product, and is formed in a horizontally long substantially rectangular box shape whose front side is open.

  As shown in FIG. 6, a terminal block 9 is accommodated inside the body 1 at one end in the longitudinal direction (left side in FIG. 6), and the terminal block 9 has an insertion hole (see FIG. The three power lines 16 introduced into the inside of the body 1 through each other are connected using fixing screws 17. Further, below the terminal block 9, three connection conductors 22 electrically connected to the respective terminals of the terminal block 9 are arranged side by side in the front-rear direction. A power supply side terminal (not shown) of the branch switch 10 for the primary feed circuit is electrically connected to each terminal of the terminal block 9. Here, each power supply side terminal of the branch switch 10 is housed in an upper side portion of the branch switch 10, and from a plug-in terminal arranged in the front-rear direction at the same interval as the connection conductor 22. Thus, each power supply side terminal of the branch switch 10 and each terminal of the terminal block 9 are electrically connected by sandwiching the corresponding connection conductor 22 with the receiving blade of each plug-in terminal. Note that the plug-in terminal of the present embodiment employs conventionally known plug-in terminals, and a detailed description thereof will be omitted.

  In addition, a current limiter 11 for limiting the current flowing in the electric circuit to be equal to or less than the contract current with the electric power company is housed on the right side of the terminal block 9 inside the body 1. Is provided with a knob 11a for turning on / off an internal contact (not shown) to conduct or open between each power supply side terminal and the corresponding load side terminal. Each power supply side terminal of the current limiter 11 is connected to each terminal of the terminal block 9 via a connection conductor (not shown), and each load side terminal of the current limiter 11 is connected via a connection conductor (not shown). And connected to each power supply side terminal of the main switch 12 described later.

  Further, a main switch 12 is housed on the right side of the current limiter 11 in the body 1, and an internal contact (not shown) is turned on / off at the approximate center on the front side of the main switch 12. A knob 12a is provided for conducting or opening between each power supply side terminal and the corresponding load side terminal. Moreover, the load side terminal 12b of the trunk switch 12 is provided in the right side of the trunk switch 12, and each load side terminal 12b is each connected to the one end side of elongate conductive bar 13a-13c. Further, a terminal portion 21 is provided on the other end side of the conductive bars 13a to 13c, and this terminal portion 21 is used as a power supply terminal for supplying power to, for example, a separately installed distribution board. Each conductive bar 13a to 13c is provided with a plurality of connecting pieces (not shown) arranged in parallel at the mounting pitch of the branch switch 14 along the longitudinal direction, and branches when the branch switch 14 is mounted. The receiving blades of the plug-in terminals of the switch 14 sandwich the corresponding connection pieces, whereby the power supply side terminals of the branch switch 14 and the load side terminals 12b of the main switch 12 are electrically connected. The The structure of the power supply side terminal of the branch switch 14 is the same as the structure of the branch switch 10 for the primary feed circuit described above, and the description thereof is omitted.

  In addition, mounting bases 18 for mounting the branch switches 14 are attached to the rear surfaces of the conductive bars 13a to 13c inside the body 1, and both ends of the mounting base 18 in the width direction (both ends in the vertical direction in FIG. 6). A plurality of ribs 18 a and 18 b for locking the branch switch 14 are provided at the mounting pitch of the branch switch 14 along the longitudinal direction.

  When the branch switch 14 is attached to the mounting base 18, the ribs 18 a and 18 b are aligned with a locking groove (not shown) provided on the side surface of the branch switch 14 and slid inward along the mounting base 18. And the ribs 18a and 18b are respectively locked at the edge of the locking groove, and the locking protrusions (not shown) provided on the operation surface 14a of the branch switch 14 are locking recesses provided on the locking piece 18c. (Not shown) and the branch switch 14 is attached to the attachment base 18.

  Conversely, when removing the branch switch 14 from the mounting base 18, the locking state of the locking recesses and the locking protrusions is released by pushing the distal end side of the locking piece 18 c to the rear side with, for example, a screwdriver. When the branch switch 14 is slid outward along the mounting base 18 from this state, the latching state of the ribs 18a and 18b and the locking groove is released and the branch switch 14 is removed.

  Here, in the present embodiment, the branch switches 14 are arranged in two rows on both sides in the vertical direction with the conductive bars 13a to 13c therebetween as shown in FIG. 6, and further along the longitudinal direction of the mounting base 18. A plurality (two each in FIG. 6) are arranged in parallel.

  In addition, a plurality of ground terminal blocks 15 (three in FIG. 6) are provided on the lower side of the branch switch 14 in the body 1 and each of the ground terminal blocks 15 is a main switch. It is electrically connected to 12 neutral poles. In addition, the quick connection terminal of this embodiment employ | adopts a conventionally well-known thing, and abbreviate | omits detailed description.

  The cover 2 is, for example, a synthetic resin molded product, and is formed in a rectangular frame shape having substantially the same outer dimensions as the body 1 as shown in FIG. 8. A terminal block 9, a current limiter 11, A rectangular opening 2a for exposing the main switch 12 and the branch switch 14 to the front side is provided. In addition, a plurality of rectangular protrusions 2b protruding inward are provided along the longitudinal direction at the opening edges on both ends in the width direction of the opening 2a. Note that the adjacent locking protrusions 2b and the locking protrusions 2b are provided at intervals equal to or larger than the horizontal width dimension of the holding pieces 5d provided on both ends in the vertical direction of the divided panel 5 described later. In addition, a fixing portion 19 is provided at a substantially central portion in the longitudinal direction on the lower side of the cover 2 in which a fixing screw (not shown) for fixing the door 3 to the cover 2 in a closed state is screwed. Yes. Further, on the upper side in the width direction of the cover 2, three bearing portions 24 for pivotally supporting the door body 3 so as to be freely opened and closed are provided along the longitudinal direction. The body 1 and the cover 2 constitute a case body.

  As shown in FIGS. 1, 4, and 5, the panel 4 includes a divided panel 5 attached to a portion corresponding to the branch switch 14, a divided panel 6 attached to a portion corresponding to the main switch 12, and a current. The divided panel 7 is attached to a portion corresponding to the limiter 11 and the divided panel 8 is attached to a portion corresponding to the terminal block 9 and the branch switch 10 for the primary feed circuit.

  The divided panel 5 is, for example, a synthetic resin molded product, and has a rectangular plate-shaped main piece 5a. The upper edge of the main piece 5a is inclined to the front side (the left side in FIG. 5) as it goes upward. An inclined protruding piece (projecting portion) 5b having a surface is integrally provided. In addition, holding pieces 5 d that are engaged with the engaging protrusions 2 b of the cover 2 are provided on both ends in the vertical direction on the rear surface side of the divided panel 5. Further, in the main piece 5a and the inclined piece 5b, openings corresponding to the branch switch 14 are provided with opening windows 5c each including a plurality of knockout holes that expose the operation surface 14a of the branch switch 14 to the front side. A display 5e for displaying the load name of the branch switch 14 corresponding to the lower side of the opening window 5c in the main piece 5a is provided, and the branch switch 14 corresponding to the upper side of the opening window 5c in the inclined piece 5b. A display portion 5e for displaying the load name is provided. In addition, on the side surfaces of the split panel 5 at both ends in the left-right direction, four engagement protrusions 5f that protrude outward are provided in each of four locations along the vertical direction. In addition, the said knockout hole is opened according to the number of the branch switches 14 accommodated.

  The divided panel 6 is a synthetic resin molded product similar to the divided panel 5 and has a rectangular plate-like main piece 6a, and an inclined surface that inclines toward the front side toward the upper side at the upper edge of the main piece 6a. An inclined projecting piece (protruding part) 6b having the above is integrally provided. In addition, holding pieces (not shown, but the same structure as the holding pieces 5d) are provided at both ends in the vertical direction on the back side of the divided panel 6 to be locked with the locking protrusions 2b of the cover 2. Yes. Furthermore, an opening window 6c including a plurality of knockout holes for exposing the operation surface of the main switch 12 to the front side is provided at a portion corresponding to the main switch 12 in the main piece 6a. Is attached with a name plate 20 for displaying the name of the main switch 12. The left side surface of the divided panel 6 is provided with four engaging projections 6e protruding in the vertical direction, and the right side surface of the divided panel 6 is provided with the engagement provided on the divided panel 5. Four engagement grooves 6d with which the protrusions 5f are engaged are provided along the vertical direction. The knockout hole is opened according to the size of the main trunk switch 12 to be accommodated.

  The split panel 7 is a synthetic resin molded product similar to the split panel 5 and has a rectangular plate-like main piece 7a, and an inclined surface that inclines toward the front side toward the upper side at the upper edge of the main piece 7a. An inclined projecting piece (protruding part) 7b having the above is integrally provided. Further, locking claws 7c that protrude to the rear surface side and are locked with the locking protruding pieces 2b of the cover 2 in the attached state are provided on both ends of the divided panel 7 in the vertical direction.

  The divided panel 8 is a synthetic resin molded product similar to the divided panel 5 and has a rectangular plate-shaped main piece 8a, and an inclined surface that inclines toward the front side toward the upper side at the upper edge of the main piece 8a. An inclined projecting piece (protruding part) 8b having the above is integrally provided. In addition, an opening window 8c including a knockout hole for exposing the operation surface 10a of the branch switch 10 to the front side is provided at a portion corresponding to the branch switch 10 in the main piece 8a. Furthermore, locking claws 8d that protrude to the rear surface side and are locked with the locking protrusions 2b of the cover 2 in the attached state are provided at both ends of the divided panel 8 in the vertical direction. The knockout hole is opened according to the number of branch switches 10 for the primary feed circuit to be accommodated.

  A procedure for attaching these divided panels 5 to 8 to the cover 2 will be described. First, the divided panel 5 is attached to the cover 2 from the front side in a state where the holding pieces 5d are arranged in the gaps between the adjacent locking protrusions 2b of the cover 2, and the divided panel 5 is moved along the cover 2 from this state. When it is slid rightward, the locking protrusion 2b is held between the holding piece 5d and the rear surface of the divided panel 5 at the position shown in FIG. 1A, and the divided panel 5 covers the opening 2a and covers the cover 2. Mounted on.

  Next, similarly to the divided panel 5, the divided panel 6 is attached to the cover 2 from the front side with the holding piece disposed in the gap between the adjacent locking projections 2b of the cover 2, and is divided from this state. When the panel 6 is slid to the right along the cover 2, the locking projection 2b is held between the holding piece and the back surface of the divided panel 6 at the position shown in FIG. It is attached to the cover 2 so as to cover 2a. In this state, the engagement protrusions 5f provided on the left side surface of the divided panel 5 are engaged with the engagement grooves 6d provided on the right side surface of the divided panel 6, respectively. 6 can be attached without gaps.

  Furthermore, the divided panel 7 is attached to the cover 2 from the front side, so that the respective locking claws 7c provided on both ends in the vertical direction of the divided panel 7 are engaged with the corresponding locking projections 2b, respectively. A panel 7 is attached to the cover 2 so as to cover the opening 2a.

  Further, by attaching the divided panel 8 to the cover 2 from the front side, the engaging claws 8d provided on both ends in the vertical direction of the dividing panel 8 engage with the corresponding engaging protrusions 2b, respectively. A panel 8 is attached to the cover 2 so as to cover the opening 2a.

  Here, FIG. 7 shows a state in which the panel 4 is attached to the cover 2, but as described above, each of the divided panels 5 to 8 is closer to the front side toward the upper edge of the main pieces 5a to 8a. Inclined protrusions 5b to 8b having inclined surfaces that are inclined are integrally provided, and the space between the back surface of the body 1 and the panel 4 can be expanded in the attached state. Therefore, as shown in FIG. 7, by arranging the power line 16 introduced into the case main body (body 1 and cover 2) in the inclined protrusions 5b to 8b, the power line 16 is thick and hard. In addition, the power line 16 can be accommodated in the case body, and the panel 4 can be securely attached to the cover 2. Moreover, in this embodiment, since the panel 4 is only partially thick because the inclined protrusions 5b to 8b are provided, compared with the case where the thickness of the distribution board is increased as a whole, it is closer to the front side. It is possible to reduce the size of the main pieces 5a to 8a that are not projected.

  Further, since the distribution board is usually installed at a high position on the wall surface in the house, as shown in FIGS. 1 (a) and 7, the inclined panels 5b to 8b are attached and the divided panels 5 to 8 are attached. When the distribution board A is viewed from below, the inclined protrusions 5b to 8b are not separated from each other because the inclined protrusions 5b to 8b are separated from each other. Therefore, the space for storing the power line 16 can be expanded without giving a feeling of oppression to the person in the residence.

  Furthermore, as described above, the display unit 5e that displays the load name of the branch switch 14 is provided on the inclined projecting piece 5b in the attached state on the upper side of the opening window 5c, so that the display unit 5e projects obliquely forward. Therefore, the load name of the branch switch 14 can be easily confirmed when viewed from the lower side.

  In the present embodiment, as shown in FIG. 1, the inclined projections 5 b to 8 b that form the protruding portions are provided on the upper portions of the divided panels 5 to 8, but the positions of the protruding portions are limited to the present embodiment. It may be appropriately designed according to the position where the power line 16 is disposed.

  Moreover, in this embodiment, although it has adhered to the cover 2 in order of the division panels 5, 6, 7, and 8 from the right side in Fig.1 (a), the position which adheres the division panels 5-8 is this embodiment. It is not limited to these, and may be changed as appropriate according to the positions of the main switch 12 and the branch switch 14. Further, the number of divided panels is not limited to this embodiment, and may be three or less or five or more. Further, not a divided panel but a single panel may be used.

  In the present embodiment, the case body is constituted by the body 1 and the cover 2 provided separately, but the case body may be integrated.

The state which opened the door body of the electricity distribution panel of this embodiment is shown, (a) is a front view, (b) is XX sectional drawing. It is a side view of the state which opened the door body same as the above. The state which closed the door body same as the above is shown, (a) is a front view, (b) is a side view. (A)-(d) is a front view of the division | segmentation panel used for the same as the above. It is a side view of the division | segmentation panel used for the same as the above. It is component arrangement drawing same as the above. It is sectional drawing which shows the state which connected the power line to the same as the above. It is a front view of the state which removed the panel same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Body 2 Cover 2a Opening part 4 Panel 5-8 Split panel 5b-8b Inclined protrusion (protrusion part)
5c Open window (window hole)
14 Branch switch 14a Operation surface (operation part)
16 Power line A Distribution board

Claims (1)

A switch is installed, and there is an opening in the part corresponding to the switch on one side, and the case body that houses the power line through the insertion hole provided on the other side, and is attached to the case body so as to cover the opening With a panel to be
The panel has a flat plate portion arranged in a vertical direction in an attached state, and the flat plate portion is provided with a window hole that exposes the operation portion of the switch to the front side, and an edge of the flat plate portion From the part, a protruding part that protrudes to the front side is provided integrally ,
The switch has at least a branch switch, and the projection is provided at a portion that is an upper portion in the mounted state in the panel, and the branch corresponding to the portion above the window hole in the mounted state in the projection. A distribution board comprising a display unit for displaying a load name of the switch .

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