JP5520565B2 - Power interrupting structure and power distributor - Google Patents

Description

  The present invention relates to a power interrupt structure and a power distributor for connecting and shutting off a power circuit.

  As a conventional power supply intermittent structure, one applied to an electric junction box mounted on a vehicle has been proposed (see Patent Document 1). As shown in FIGS. 8 and 9, the electrical junction box 100 includes a junction box body 101 and a cover 110 that opens and closes an opening of the junction box body 101. In the junction box body 101, a first bus bar 102 connected to the power source (battery) side and a second bus bar 103 connected to the load side are arranged. The first bus bar 102 and the second bus bar 103 constitute a part of a dark current circuit (power circuit) that supplies power to a battery direct connection component such as a watch. Connection terminals 102 a and 103 a arranged close to each other are provided at the end portions of the first bus bar 102 and the second bus bar 103, respectively.

  The cover 110 is provided with a tab portion 111 protruding to the inner surface side. When the cover 110 is attached to the connection box main body 101, the tab portion 111 presses the connection terminal 103a of the second bus bar 103 and the connection terminal 103a is bent and deformed as shown in FIG. Due to this bending deformation, the connection terminals 102a and 103a come into contact with each other, and the dark current circuit is electrically connected. When the cover 110 that has closed the opening of the connection box main body 101 is removed from the connection box main body 101, the tab portion 111 releases the pressing of the connection terminal 103a of the second bus bar 103 as shown in FIG. Bends and returns. By this return deformation, the connection terminals 102a and 103a are not in contact with each other, and the dark current circuit is interrupted.

  In this conventional example, the dark current circuit is intermittently interlocked with the opening and closing of the cover 110.

JP-A-7-22230

  However, in the conventional power supply interrupting structure, circuit interruption cannot be performed regardless of opening and closing of the cover 110, and therefore circuit interruption during long-term non-use or maintenance cannot be easily performed. For example, when not in use for a long period of time, there is a case where it is desired to make the circuit intermittent while the cover 110 is closed. In that case, it is necessary to devise so that the tab portion 111 does not press the connection terminal 103a.

  On the other hand, there is another conventional example in which a dedicated switch unit is provided in the junction box body. In another conventional example, there is a problem that a dedicated space for the switch portion must be secured in the junction box body.

  Therefore, the present invention has been made to solve the above-described problems, and can easily perform circuit intermittent operation when not in use for a long time or during maintenance, and also requires no dedicated space for the switch section. An object is to provide a structure and a power distributor.

  The invention according to claim 1 is a first block portion having a first conductive member electrically connected to the power supply side, a second block portion having a second conductive member electrically connected to the load side, A pin insertion hole provided at a connection position between the first block part and the second block part, and the pin insertion hole can be inserted to electrically connect the first conductive member and the second conductive member. Or a power interrupting pin that can be shut off.

  A second aspect of the present invention is the power interrupting structure according to the first aspect, wherein the first block portion and the second block portion are configured as separate members, and the pin insertion hole is provided in the first block portion. A first insertion hole and a second insertion hole provided in the second block part, and the first block part and the second block are inserted by inserting the power interrupt pin into the pin insertion hole. And the first conductive member and the second conductive member are electrically connected to each other, and the power interrupting pin is detached from the pin insertion hole, whereby the first block portion and the second conductive member are connected. The power supply intermittent structure is characterized in that the connection of the block portion is released and the first conductive member and the second conductive member are electrically disconnected.

  According to a third aspect of the present invention, there is provided the power interrupting structure according to the first aspect, wherein the first block part and the second block part are configured as an integral member, and the power interrupting pin inserted into the pin insertion hole. The power supply intermittent structure is characterized in that the first conductive member and the second conductive member are electrically connected to or disconnected from each other through the power supply intermittent pin depending on the rotation position.

  According to a fourth aspect of the present invention, there is provided a power supply distributor using the power interrupting structure according to any one of the first to third aspects.

  According to the first aspect of the present invention, since the circuit can be interrupted by the power interrupt pin arranged at the connecting position of the first block part and the second block part, the circuit is interrupted when not in use for a long time or during maintenance. Easy to operate. In addition, since the power interrupt pin is disposed at the connecting position of the first block portion having the first conductive member and the second block portion having the second conductive portion, a dedicated space for the switch portion is not required.

  According to the invention of claim 2, the circuit can be intermittently connected by attaching and detaching the power interruption pin.

  According to the invention of claim 3, since the circuit can be interrupted by the rotation of the power interrupt pin, the circuit interrupting operation is very simple.

  According to the invention of claim 4, since the circuit can be intermittently connected at the position of the power distributor, centralized management of the power supply system is possible.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a first embodiment of the present invention, in which (a) is an exploded perspective view of a main part of a fuse block of a power distributor, and (b) is a cross-sectional view of a main part of the fuse block of the power distributor. 1 shows a first embodiment of the present invention, in which (a) is an exploded perspective view showing a state in which the first bus bar and the second bus bar are electrically connected by a power interrupt pin, and (b) is the first bus bar and the first bus bar. It is a perspective view which shows the state by which 2 bus-bars are electrically interrupted | blocked. 1 is a cross-sectional view of a power interrupt pin according to a first embodiment of the present invention. 2A and 2B show a second embodiment of the present invention, in which FIG. 3A is a plan view of a main part of a fuse block of a power distributor, FIG. 2B is a front view of a main part of a fuse block of the power distributor, and FIG. It is a principal part side view of a fuse block. It is a perspective view of the pin for power interruption which shows 2nd Embodiment of this invention. The 2nd Embodiment of this invention is shown, (a) is the B section enlarged view of FIG.4 (c) when a power supply interruption pin is an ON position, (b) is a case where a power supply interruption pin is an ON position. It is the sectional view on the AA line of FIG.4 (b). 4A and 4B show a second embodiment of the present invention, in which FIG. 4A is an enlarged view of part B in FIG. 4C when the power interrupt pin is in the off position, and FIG. It is the sectional view on the AA line of FIG.4 (b). It is sectional drawing of the electrical-connection box in the case where a prior art example is shown and a circuit is a connection state. It is sectional drawing of the electrical-connection box in the case where a prior art example is shown and a circuit is a cutoff state.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
1 to 3 show a first embodiment in which the power interrupting structure of the present invention is applied to a fuse block of a power distributor, and FIG. 1A is an exploded perspective view of a main part of a fuse block 1A of the power distributor. 1 (b) is a cross-sectional view of the main part of the fuse block 1A of the power distributor, and FIG. 2 (a) shows a state in which the first bus bar 3 and the second bus bar 11 are electrically connected by the power interrupt pin 20A. FIG. 2B is an exploded perspective view, FIG. 2B is a perspective view showing a state where the first bus bar 3 and the second bus bar 11 are electrically disconnected, and FIG. 3 is a cross-sectional view of the power interrupt pin 20A.

  As shown in FIGS. 1 to 3, the power distributor is mounted on the vehicle. The fuse block 1A of the power distributor includes a first block portion 2, a second block portion 10, and a power interrupt pin 20A. The first block portion 2 and the second block portion 10 are configured as separate members, and the block portions 2 and 10 are connected by a power interrupt pin 20A.

  The first block portion 2 includes a first bus bar 3 that is a conductive first conductive member, and a first insulating resin layer 4 that is disposed so as to cover an appropriate position of the first bus bar 3. The first bus bar 3 includes a flat plate portion 5 and a first insertion hole portion 6 provided along one side of the flat plate portion 5. A connection hole 5 a is formed in the flat plate portion 5. The flat plate portion 5 is exposed around the connection hole 5a without the first insulating resin layer 4 being disposed. A battery connection terminal (not shown) is fixed using the connection hole 5a, and is directly attached to a battery post (not shown) via the battery connection terminal. That is, the first bus bar 3 is connected to the power source (battery) side. The 1st insertion hole part 6 is comprised from the some ring part 6a provided at intervals. A meshing rib portion 4a of the first insulating resin layer 4 is provided on the outer periphery of each ring portion 6a.

  The second block portion 10 includes a second bus bar 11 that is a conductive second conductive member, a second insulating resin layer 12 disposed so as to cover an appropriate position of the second bus bar 11, and a connection bolt 13. It is configured. The second bus bar 11 includes a flat plate portion 14 and a second insertion hole portion 15 provided along one side of the flat plate portion 14. A bolt insertion hole 14 a is formed in the flat plate portion 14. A connecting bolt 13 is inserted into the bolt insertion hole 14a. The connection bolt 13 is prevented from rotating by the second insulating resin layer 12 and is prevented from coming off from the bolt insertion hole 14a. A branch block (not shown) with a fuse is connected to the second bus bar 11 using a connection bolt 13, and a plurality of output terminals of this branch block are electrically connected to each load side.

  The 2nd insertion hole part 15 is comprised from the some ring part 15a provided at intervals. A meshing rib portion 12a of the second insulating resin layer 12 is provided on the outer periphery of each ring portion 15a.

  The first block portion 2 and the second block portion 10 are combined in the orthogonal direction by fitting the plurality of meshing rib portions 4a and 12a to each other. In this combined state, the first insertion hole portion 6 and the second insertion hole portion are combined. The part 15 is arranged on the same axis. That is, the first insertion hole 6 and the second insertion hole 15 form a pin insertion hole 16 at the connection position of the first block 2 and the second block 10.

  As shown in detail in FIG. 3, the power interrupt pin 20 </ b> A includes a columnar shaft portion 21, an insulating head 22 fixed to one end of the shaft portion 21, and a tension string 23 fixed to the insulating head 22. It consists of and. The shaft portion 21 is dimensioned to be press-fitted into the pin insertion hole 16 and is formed of a conductive member. The insulating head 22 is made of an insulating resin material.

  In the above configuration, the fuse block 1A of the power distributor is combined so that the engaging rib portions 4a and 12a of both the first block portion 2 and the second block portion 10 are fitted to each other as shown in FIG. The power insertion / disconnection pin 20A is press-fitted into the pin insertion hole 16 for assembly. In a state where the power interrupt pin 20A is inserted into the pin insertion hole 16, the first bus bar 3 and the second bus bar 11 are electrically connected via the power interrupt pin 20A. When the power interrupt pin 20A is removed from the pin insertion hole 16, the connected state of the first block portion 2 and the second block portion 10 is released. Then, the first bus bar 3 and the second bus bar 11 are electrically disconnected.

  As described above, since the circuit can be interrupted by the power interrupt pin 20A arranged at the connection position of the first block part 2 and the second block part 10, the circuit interrupting operation at the time of long-term non-use or maintenance is easy. it can. Further, the power interrupt pin 20 </ b> A is disposed at the connection point between the first block part 2 having the first bus bar 3 and the second block part 10 having the second bus bar 11, so that a dedicated space for the switch part is not necessary.

  In the first embodiment, since the power supply interrupting structure is applied to the power distributor, the circuit can be interrupted at the position of the power distributor, so that the power system can be centrally managed.

  In the first embodiment, since the first bus bar 3 and the second bus bar 11 are formed as separate members rather than as a single member, the first bus bar 3 and the second bus bar 11 are respectively set to predetermined parts without bending the bus bar. 1A can be manufactured. That is, when the first bus bar 3 and the second bus bar 11 are formed as an integral member, it is necessary to perform bending at the boundary position, but this is not necessary.

(Second Embodiment)
4 to 7 show a second embodiment in which the power supply interrupting structure of the present invention is applied to the fuse block of the power distributor. FIG. 4A is a plan view of the main part of the fuse block 1B of the power distributor. FIG. 4C is a side view of the main part of the fuse block 1B of the power distributor, FIG. 5 is a perspective view of the power interrupt pin 20B, and FIG. 4A is an enlarged view of a portion B in FIG. 4C when the power interrupt pin 20B is in the on position, and FIG. 6B is a diagram when FIG. 4B is when the power interrupt pin 20B is in the on position. FIG. 7A is an enlarged view of portion B in FIG. 4C when the power interrupt pin 20B is in the OFF position, and FIG. 7B is an OFF diagram of the power interrupt pin 20B. FIG. 5 is a cross-sectional view taken along line AA in FIG.

  4 to 7, the power distributor is mounted on the vehicle. The fuse block 1B of the power distributor includes a first block unit 2, a second block unit 10, and a power interrupt pin 20B. The 1st block part 2 and the 2nd block part 10 are comprised by the integral member. The first block portion 2 and the second block portion 10 are arranged in a substantially orthogonal direction and are connected to each other at this intersection. A pin insertion hole 16 is formed at a connection position between the first block portion 2 and the second block portion 10.

  The first block portion 2 includes a first bus bar 3 that is a conductive first conductive member, and a first insulating resin layer 4 that is disposed so as to cover an appropriate position of the first bus bar 3. The first bus bar 3 has a flat plate shape and has a connection hole 5a. The first bus bar 3 is exposed around the connection hole 5a without the first insulating resin layer 4 being disposed. A battery connection terminal (not shown) is fixed using the connection hole 5a, and is directly attached to a battery post (not shown) via the battery connection terminal. That is, the first bus bar 3 is connected to the power source (battery) side. An end surface on one end side of the first bus bar 3 is exposed on the inner surface of the pin insertion hole 16.

  The second block portion 10 includes a second bus bar 11 that is a conductive second conductive member, a second insulating resin layer 12 disposed so as to cover an appropriate position of the second bus bar 11, and a connection bolt 13. It is configured. The second bus bar 11 has a flat plate shape and is formed with a bolt insertion hole 14a. A connecting bolt 13 is inserted into the bolt insertion hole 14a. The connection bolt 13 is prevented from rotating by the second insulating resin layer 12 and is prevented from coming off from the bolt insertion hole 14a. A branch block (not shown) with a fuse is connected to the second bus bar 11 using a connection bolt 13, and a plurality of output terminals of this branch block are electrically connected to each load side.

  An end surface on one end side of the second bus bar 11 is exposed on the inner surface of the pin insertion hole 16. The end surface on the one end side of the second bus bar 11 is exposed at a rotation position of approximately 90 degrees with respect to the end surface on the one end side of the first bus bar 3.

  As shown in detail in FIG. 5, the power interrupt pin 20 </ b> B includes a columnar shaft portion 21 and an insulating head portion 22 fixed to one end of the shaft portion 21. The shaft portion 21 is dimensioned to be press-fitted into the pin insertion hole 16. The shaft portion 21 includes an L-shaped conductor 21a and an insulator 21b disposed so as to cover the outer periphery thereof. The L-shaped conductor 21a is exposed from the outer peripheral surface of the insulator 21b at a rotation position of approximately 90 degrees. A knob portion 22 a is projected from the insulating head portion 22. The power interrupt pin 20B configured as described above is rotatably inserted into the pin insertion hole 16. An on display and an off display are formed at the connection portion between the first insulating resin layer 4 and the second insulating resin layer 12 and at the rotational outer peripheral position from the insulating head 22 of the power interrupt pin 20B. When the knob portion 22a of the power interrupt pin 20B is in the ON rotation position, both end surfaces of the conductor 21a abut against the end surfaces of the first bus bar 3 and the second bus bar 11, as shown in FIGS. 6 (a) and 6 (b). It is located at the contact position. When the knob portion 22a of the power interrupt pin 20B is in the off-rotation position, as shown in FIGS. 7A and 7B, one end surface of the conductor 21a is located at a position where it abuts against the second bus bar 11. The other end surface of the conductor 21a is positioned so as not to contact the first bus bar 3.

  In the above configuration, as shown in FIGS. 6A and 6B, when the rotational position of the power interrupt pin 20B is in the OFF position, the power interrupt pin is between the first bus bar 3 and the second bus bar 11. It is electrically connected via 20B. As shown in FIGS. 7A and 7B, when the rotational position of the power supply interrupting pin 20B is the on position, the first bus bar 3 and the second bus bar 11 are electrically disconnected.

  As described above, since the circuit can be interrupted by the power interrupt pin 20B arranged at the connecting position of the first block part 2 and the second block part 10, the circuit interrupting operation at the time of long-term non-use or maintenance is easy. it can. In particular, in the second embodiment, since the circuit can be interrupted by the rotation of the power interrupt pin 20B, the circuit interrupting operation is very simple. Further, the power interrupt pin 20 </ b> B is disposed at a connection point between the first block part 2 having the first bus bar 3 and the second block part 10 having the second bus bar 11, so that a dedicated space for the switch part is not necessary.

  In the second embodiment, since the power interrupting structure is applied to the power distributor, the circuit can be interrupted at the position of the power distributor, so that the power system can be centrally managed.

  In the second embodiment, the first bus bar 3 and the second bus bar 11 are formed as separate members rather than as a single member, so that the first bus bar 3 and the second bus bar 11 are each in a predetermined direction without bending the bus bar. 1A can be produced. That is, when the first bus bar 3 and the second bus bar 11 are formed as an integral member, it is necessary to perform bending at the boundary position, but this is not necessary. In addition, in the second embodiment, there is no need to provide a plurality of ring portions 6a and 15a on the first bus bar 3 and the second bus bar 11 as in the first embodiment, and therefore the first bus bar 3 and the second bus bar. 11 is easier to manufacture.

2 1st block part 3 1st bus bar (1st conduction member)
6 1st insertion hole part 10 2nd block part 11 2nd bus bar (2nd conduction member)
15 2nd insertion hole part 16 Pin insertion hole 20A, 20B Pin for power supply intermittent

Claims (4)

  A first block portion having a first conductive member electrically connected to a power supply side; a second block portion having a second conductive member electrically connected to a load side; the first block portion and the first block portion; A pin insertion hole provided at a connecting position of the two block parts, and a power supply that can be inserted into the pin insertion hole and can be electrically connected or disconnected between the first conductive member and the second conductive member A power supply interrupting structure comprising an interrupting pin. The power supply intermittent structure according to claim 1,
The first block portion and the second block portion are configured as separate members, and the pin insertion hole is a first insertion hole portion provided in the first block portion and a second insertion provided in the second block portion. Composed of holes,
By inserting the power interrupt pin into the pin insertion hole, the first block portion and the second block portion are coupled and the first conductive member and the second conductive member are electrically connected. The connection between the first block portion and the second block portion is released by removing the power interrupt pin from the pin insertion hole, and the electrical connection between the first conductive member and the second conductive member is performed. Power supply interruption structure characterized by being interrupted by. The power supply intermittent structure according to claim 1,
The first block portion and the second block portion are configured as an integral member, and the power supply is connected between the first conductive member and the second conductive member according to a rotation position of the power supply interrupting pin inserted into the pin insertion hole. A power interrupting structure characterized by being electrically connected or interrupted via an interrupting pin.   A power supply distributor using the power supply interrupting structure according to any one of claims 1 to 3.

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