JP6125334B2 - Electrical junction box - Google Patents

Description

  The present invention relates to an electrical junction box mounted on an automobile.

  There are various types of electrical connection boxes mounted on automobiles, for example, there are structures shown in FIGS. 12 and 13 (see, for example, Patent Document 1). FIG. 12 is an exploded view of a conventional electrical junction box. 13 is a cross-sectional view of the electrical junction box shown in FIG.

  An electrical junction box 301 shown in FIG. 12 includes a plurality of bus bars 302 and 303, a synthetic resin wiring board 304 on which the plurality of bus bars 302 and 303 are routed, and a plurality of the electric connection boxes 301 assembled to the wiring board 304. And a synthetic resin cover 305 covering the bus bars 302 and 303. The electrical connection box 301 is provided with electronic component mounting portions 308 and 310 on which electronic components such as fuses, relays, and wire harness connectors are mounted.

  As shown in FIG. 13, the electronic component mounting portion 308 includes a fitting portion 381 into which a connector is fitted and a connection portion 322 of the bus bar 302. The fitting portion 381 is integrally formed with the cover 305. The bus bar 302 is provided with a routing portion 321 routed along the bottom surface of the routing plate 304 and a connection portion 322 bent at a right angle from the routing portion 321. The connecting portion 322 is positioned in the fitting portion 381 through the insertion hole 382 provided in the bottom surface of the fitting portion 381. The electronic component mounting unit 310 has the same configuration as the electronic component mounting unit 308.

  When assembling the electrical connection box 301, all the bus bars 302 and 303 are routed to the routing board 304, and then each connection portion of the bus bars 302 and 303 is connected to pass through the insertion holes of the fitting portion. The cover 305 is assembled to the wiring board 304 and assembled while aligning the positions of the portions and the respective insertion holes.

JP 2012-65404 A

  However, the electrical junction box 301 described above has the following problems. That is, since the electrical connection box 301 is dotted with electronic component mounting portions 308 and 310 at a plurality of locations, when the cover 305 is assembled to the wiring board 304, the plurality of connection portions are aligned with the respective insertion holes. There is a problem that the assembly workability is poor.

  In the fitting portion 381 described above, the hole gradually narrows in the insertion hole 382 from the routing plate 304 side toward the cover 305 side so that the connection portion 322 can be easily picked up when the cover 305 is assembled. A pick-up structure is provided. However, if a large and long pickup structure is provided in the insertion hole 382 in order to improve the insertion property of the connection part 322, the connection part 322 must be lengthened accordingly, and the entire electrical connection box 301 is increased in size. There was a problem.

  Furthermore, in the case of electrical junction boxes to which large current fuses and relays can be attached, the cover material must be a heat resistant material that can withstand the heat generated by the fuses and relays, but the heat resistant material has a large dimensional change. Therefore, there was a problem that the workability of assembling the cover was further deteriorated.

  Therefore, an object of the present invention is to provide an electrical junction box that can improve the workability of assembling the cover and can prevent an increase in size.

The invention described in claim 1 includes a plurality of bus bars, a routing board in which the plurality of bus bars are routed, and a cover that covers the plurality of bus bars routed in the routing board, Electrical connection in which at least one of a plurality of bus bars is provided with a routing portion along the routing plate, and a connection portion that is bent and raised from the routing portion to the cover side and is electrically connected to an electronic component The box includes a block that is formed separately from the wiring board and the cover and forms an electronic component mounting portion together with the connection portion, and a fitting portion into which the electronic component is fitted, and the fitting A connection portion insertion hole through which the connection portion is inserted and a screw insertion hole as a fixing portion to the wiring board are provided, and the opening that exposes the fitting portion to the cover is provided, the electronic component mounting portion, a plurality of the connecting portion and the block The plurality of connection portions include a first connection portion and a second connection portion having higher rigidity than the first connection portion, and a screw is passed through the screw insertion hole. When the block is screwed to the wiring board, the inner surface of the connection portion insertion hole abuts on the second connection portion to restrict the rotation of the block. It is an electrical junction box.

The invention described in claim 2 is that, in the invention described in claim 1 , the second connection part is disposed at a position closer to the screw insertion hole than the first connection part. It is a feature.

  The invention described in claim 3 includes a plurality of bus bars, a routing board in which the plurality of bus bars are routed, and a cover that covers the plurality of bus bars routed in the routing board, Electrical connection in which at least one of a plurality of bus bars is provided with a routing portion along the routing plate, and a connection portion that is bent and raised from the routing portion to the cover side and is electrically connected to an electronic component The box includes a block that is formed separately from the wiring board and the cover and forms an electronic component mounting portion together with the connection portion, and a fitting portion into which the electronic component is fitted, and the fitting A connection portion insertion hole through which the connection portion is inserted, an opening for exposing the fitting portion is provided in the cover, and the fitting portion is passed through the opening. Projecting out of the cover and opening the fitting portion into the cover. An electrical connection box, characterized in that the guide for the guide rib is provided.
  The invention described in claim 4 is the invention described in claim 3, wherein the block is provided with a screw insertion hole as a fixing portion to the routing board, and the routing board is provided with the routing. A rib extending along a side end surface of the portion is provided, and when the block is screwed to the routing plate by passing a screw through the screw insertion hole, the side end surface of the routing portion contacts the rib. By the contact, displacement of the bus bar is regulated.

According to the invention described in claim 1, since the block formed separately from the routing board and the cover is provided, the bus bar is routed to the routing board and then connected to the connecting portion insertion hole of the block. The cover can be easily assembled by passing the part and then assembling the cover to the wiring board. In addition, even when electronic component mounting portions are scattered, by providing a block for each electronic component mounting portion, the corresponding connection portion can be easily passed through the connection portion insertion hole of each block. It is not necessary to provide a large and long pickup structure in the connection portion insertion hole, and the connection portion can be made to have a minimum length. Therefore, it is possible to provide an electrical junction box that can improve the workability of assembling the cover and can prevent an increase in size.
Further, since the block is provided with the fixing portion to the wiring board, it is possible to prevent the position of the block from being displaced and to further improve the workability of the cover assembly.
In addition, since the rotation of the block can be restricted by the second connecting portion when the block is screwed to the routing board, even if the routing board is not provided with a structure for preventing the rotation of the block, The shape and the shape of the manufacturing die for the wiring board can be simplified.

According to the invention described in claim 2 , since the second connection portion is disposed at a position closer to the screw insertion hole than the first connection portion, the rotation of the block can be reliably controlled.

According to the invention described in claim 3 , since the block formed separately from the routing board and the cover is provided, the bus bar is routed to the routing board and then connected to the connecting portion insertion hole of the block. The cover can be easily assembled by passing the part and then assembling the cover to the wiring board. In addition, even when electronic component mounting portions are scattered, by providing a block for each electronic component mounting portion, the corresponding connection portion can be easily passed through the connection portion insertion hole of each block. It is not necessary to provide a large and long pickup structure in the connection portion insertion hole, and the connection portion can be made to have a minimum length. Therefore, it is possible to provide an electrical junction box that can improve the workability of assembling the cover and can prevent an increase in size.
Moreover, since the guide rib is provided in the cover, the workability of assembling the cover can be further improved.
According to the fourth aspect of the present invention, since the block is provided with the fixing portion to the wiring board, it is possible to prevent the position of the block from being displaced and to further improve the assembling workability of the cover.
Moreover, since the rib extended along the side end surface of the routing part is provided in the routing board, the bus bar can be easily positioned when routing the bus bar to the routing board. Further, the bus bar can be prevented from being displaced when the block is screwed to the wiring board.

It is a perspective view which shows the electrical junction box concerning the 1st Embodiment of this invention. FIG. 2 is an exploded view of the electrical junction box shown in FIG. 1. It is sectional drawing along the AA line in FIG. It is an enlarged view of the B section in FIG. FIG. 3 is a plan view of the routing board shown in FIG. 2. It is an enlarged view of the C section in FIG. It is a perspective view of the wiring board shown by FIG. 6, and is a figure which abbreviate | omitted illustration of the block. It is sectional drawing along the DD line in FIG. It is a top view of the electronic component mounting part which comprises the electrical-connection box concerning the 2nd Embodiment of this invention. It is explanatory drawing explaining a mode when the block shown by FIG. 9 is screwed to a wiring board. It is an enlarged view of the connection part shown by FIG. It is an exploded view of the conventional electrical junction box. It is sectional drawing of the electrical-connection box shown by FIG.

(First embodiment)
An “electric connection box” according to a first embodiment of the present invention will be described with reference to FIGS.

  An electrical junction box 1 shown in FIGS. 1 and 2 is mounted on an automobile and mainly performs power distribution. A plurality of bus bars, a routing board 4 on which the plurality of bus bars are routed, and the routing A cover 5 attached to the plate 4 and covering the bus bar, a plurality of blocks 80, 90, 100, etc., formed separately from the routing plate 4 and the cover 5 and arranged between the routing plate 4 and the cover 5. It has.

  The electrical connection box 1 is provided with electronic component mounting portions 7 to 10 on which electronic components such as fuses, relays, and wire harness connectors are mounted on the cover 5 side opposite to the wiring board 4. . The electronic component mounting unit 7 is a mounting unit on which a relay is mounted. The electronic component mounting portions 8 and 9 are mounting portions to which the connector of the wire harness is mounted. The electronic component mounting part 10 is a mounting part to which a fuse is mounted. In addition, among the electronic component mounting portions 7 to 10, the electronic component mounting portions 8, 9, and 10 correspond to “electronic component mounting portions” recited in the claims.

  The plurality of bus bars are obtained by pressing a metal plate. The plurality of bus bars include a low voltage bus bar 2 to which a predetermined voltage is applied and a high voltage bus bar 3 to which a voltage higher than the predetermined voltage is applied. In the present embodiment, a voltage of 12 V or less is applied to the low voltage bus bar 2, and a voltage greater than 12 V is applied to the high voltage bus bar 3.

  As shown in FIG. 3, the low-pressure bus bar 2 is bent at a right angle from the routing portion 21 to the cover 5 side along the routing portion 42 along the routing surface 42 described later of the routing plate 4, A connection portion 22 that is electrically connected to the electronic component is provided. Similarly, the high-voltage bus bar 3 is also bent and raised at right angles from the routing portion 31 to the cover 5 side along a routing surface 43 of the routing plate 4 which will be described later. And a connection portion 32 to be connected.

  The wiring board 4 is made of a synthetic resin and is formed in a shallow box shape. As shown in FIG. 3, on the routing board 4, a low-pressure bus bar routing surface 42 on which the routing part 21 of the low-voltage bus bar 2 is routed and a high-pressure bus bar on which the routing part 31 of the high-pressure bus bar 3 is routed. A routing surface 43 is provided. The low-pressure bus bar routing surface 42 is located closer to the cover 5 than the high-pressure bus bar routing surface 43.

  The cover 5 is made of synthetic resin. As shown in FIGS. 1 and 2, the cover 5 is provided with a fitting portion 71 into which the relay is fitted. A plurality of insertion holes 72 through which the relay terminals are inserted are provided on the bottom surface of the fitting portion 71. Each terminal inserted through each insertion hole 72 by fitting the relay into the fitting portion 71 is electrically connected to the connection portion 22 of the low-voltage bus bar 2 or the connection portion 32 of the high-voltage bus bar 3 by the relay terminal 6. The fitting portion 71, the relay terminal 6, the connection portion 22 of the low voltage bus bar 2, and the connection portion 32 of the high voltage bus bar 3 constitute the electronic component mounting portion 7.

  In addition, as shown in FIGS. 2 and 3, the cover 5 has an opening 52 through which fitting portions 81, 91, 101 described later provided in the blocks 80, 90, 100 are passed, and a fitting portion 81. , 91, 101 are provided with guide ribs 53 that guide the opening 52.

  The plurality of blocks 80, 90, 100 are parts made of synthetic resin, and together with the connection part 22 of the low-voltage bus bar 2 or the connection part 32 of the high-voltage bus bar 3, constitute the electronic component mounting parts 8, 9, 10. Is.

  As shown in FIGS. 3 to 5, the block 90 includes a fitting portion 91 into which the connector of the wire harness is fitted, and a plurality of connecting portions 22 that are communicated with the fitting portion 91 and through which the connection portions 22 of the low-pressure bus bar 2 are inserted. A connection part insertion hole 92 and a screw insertion hole 94 that is a fixing part to the wiring board 4 are provided. The block 90 and the plurality of connection portions 22 constitute the electronic component mounting portion 9.

  Such a block 90 is set to the routing board 4 in a state where the bus bars 2 and 3 are routed, and then fixed to the routing board 4 by the screws 13 passed through the screw insertion holes 94. Further, when the block 90 is set on the wiring board 4, each connection portion 22 is inserted into each connection portion insertion hole 92. Thereafter, when the cover 5 is assembled to the wiring board 4, the fitting portion 91 is guided to the opening 52 side by the guide rib 53, passes through the opening 52, and protrudes out of the cover 5.

  Moreover, since the block 90 mentioned above is provided with the screw insertion hole 94 which is a fixing part to the wiring board 4, the position shift of the said block 90 can be prevented and the assembly workability | operativity of the cover 5 can be improved. it can. Further, the above-described guide rib 53 not only improves the workability of assembling the cover 5 but also improves the rigidity of the entire electrical junction box 1.

  Similarly to the block 90, the block 80 has a fitting portion 81 into which the connector of the wire harness is fitted, and a plurality of connecting portion insertions that are connected to the fitting portion 81 and through which the connecting portions 22 of the low-pressure bus bar 2 are inserted. A hole 82 and a screw insertion hole 84 that is a fixing portion to the wiring board 4 are provided. The block 80 and the plurality of connecting portions 22 constitute the electronic component mounting portion 8.

  Furthermore, the wiring board 4 is provided with ribs 44 and 45 which are provided upright from the wiring surface 42 and extend along the side end surface of the wiring part 21 at a plurality of locations.

  The ribs 44 shown in FIGS. 5 to 8 extend linearly along the side end surface of the routing portion 21 connected to the connecting portion 22 constituting the electronic component mounting portion 8, and one end thereof contacts the block 80. It is provided to touch. Such ribs 44 improve workability when routing the low-pressure bus bar 2 to the routing board 4, prevent rotation of the block 80 when the block 80 is screwed to the routing board 4, and position of the low-pressure bus bar 2. It is provided for the purpose of preventing displacement. That is, when the block 80 is screwed to the routing plate 4, the rotation of the block 80 is restricted by the block 80 coming into contact with the rib 44, and the side end surface of the routing portion 21 comes into contact with the rib 44. As a result, the displacement of the low-pressure bus bar 2 is regulated.

  The rib 45 shown in FIGS. 5 to 7 extends along a side end surface of the routing portion 21 connected to the connecting portion 22 constituting the electronic component mounting portion 8 and a corner portion bent at a right angle, and is viewed in a plan view. It is provided in an L shape. The rib 45 is provided at a position farther from the block 80 than the rib 44. Such ribs 45 are provided for the purpose of improving workability when routing the low-pressure bus bar 2 to the routing board 4 and for preventing the low-pressure bus bar 2 from being displaced when the block 80 is screwed to the routing board 4. It has been.

  Both the ribs 44 and 45 described above facilitate positioning when the low-pressure bus bar 2 is routed to the routing board 4, but the rib 45 is provided along the corner of the routing portion 21. Positioning of the low-pressure bus bar 2 can be performed with higher accuracy than 44. Further, the “positional displacement of the low-pressure bus bar 2 when the block 80 is screwed to the wiring board 4” means that the inner surface of the connection portion insertion hole 82 is connected to the connection portion 22 when the block 80 rotates with the rotation of the screw 13. This is caused by contacting the At this time, the amount of displacement of the low-pressure bus bar 2 becomes larger as the position is farther from the connecting portion 22, so that the ribs 44 and 45 are more effective in preventing misalignment as they are placed away from the connecting portion 22. In the present embodiment, the ribs 44 provided in the vicinity of the connection portion 22 restrict the rotation of the block 80, and the rib 45 provided at a position away from the connection portion 22 reliably restricts the displacement of the low-pressure bus bar 2. I am doing so.

  The ribs 44 and 45 are provided not only for the routing portion 21 connected to the connection portion 22 constituting the electronic component mounting portion 8 but also for the other low-pressure bus bars 2.

  Further, the ribs 44 and 45 may be provided for the high-pressure bus bar 3, but the high-pressure bus bar 3 is formed to have a width larger than that of the low-pressure bus bar 2, and thus is less likely to be deformed than the low-pressure bus bar 2. Positioning when routing on the routing board 4 is also easier than the low-pressure bus bar 2. Therefore, in this embodiment, the necessity for providing the ribs 44 and 45 to the high-pressure bus bar 3 is low. In this embodiment, since the low-pressure bus bar 2 is routed so as to bypass the high-pressure bus bar 3, the routing portion 21 of the low-pressure bus bar 2 is long. The part 31 is shortened. Therefore, in this embodiment, the necessity to provide the ribs 44 and 45 for the high-pressure bus bar 3 is low, and the necessity for providing the ribs 44 and 45 to the low-pressure bus bar 2 is high.

  As described above, in the electrical junction box 1, since the displacement of the bus bars 2 and 3 can be reliably prevented, it is not necessary to weld the bus bars 2 and 3 to the routing board 4, and the assembly process can be simplified. it can.

  As shown in FIGS. 3 and 5, the block 100 has a fitting portion 101 into which a fuse is fitted, and a plurality of connecting portion insertions that communicate with the fitting portion 101 and through which the connecting portions 32 of the high-voltage bus bar 3 are inserted. A hole 102 and a screw insertion hole 104 that is a fixing portion to the wiring board 4 are provided. Similar to the fitting portion 81 of the block 80 and the fitting portion 91 of the block 90, the fitting portion 101 passes through the opening 52 of the cover 5 and protrudes outside the cover 5. The block 100 and the plurality of connection portions 32 constitute the electronic component mounting portion 10. The block 100 is provided with a plurality of fitting portions 101 integrally.

  Further, since a fuse for high current is mounted on the electronic component mounting portion 10, a heat resistant material that can withstand the heat generated by the fuse is employed as the material of the block 100. Moreover, since the cover 5 and the block 100 are separate bodies, the material of the cover 5 does not need to employ the heat resistant material, and a material having good dimensional stability is employed. By such selection of the material, the dimensional change of the electrical junction box 1 is minimized. Also, the workability of assembling the cover 5 is good.

  The electrical junction box 1 is assembled in the following procedure. First, all bus bars are routed on the routing board 4. Next, the blocks 80, 90, 100 are set on the wiring board 4 through the connection portions 22, 32 in the connection portion insertion holes 82, 92, 102 of the blocks 80, 90, 100. Next, each block 80, 90, 100 is screwed to the wiring board 4. Next, various electronic components such as a resistor and a current sensor are electrically connected to a predetermined bus bar. Next, the cover 5 is assembled to the wiring board 4 while aligning the positions of the connection portions 22 and 32 and the insertion holes 72 so that the connection portions 22 and 32 pass through the insertion holes 72 of the fitting portion 71. . Thereafter, electronic components such as fuses, relays, and wire harness connectors are mounted on the electronic component mounting portions 7 to 10. The assembly of the electrical junction box 1 is completed through such a procedure.

  As described above, the electrical junction box 1 has a structure in which the electronic component mounting portions 7 to 10 are scattered, but includes the blocks 80, 90, and 100 formed separately from the wiring board 4 and the cover 5. Therefore, the corresponding connection portions 22 and 32 can be easily passed through the connection portion insertion holes 82, 92 and 102 of the respective blocks 80, 90 and 100 and the insertion hole 72 of the fitting portion 71. Assembling workability can be improved. Moreover, it is not necessary to provide a large and long pickup structure in the connection portion insertion holes 82, 92, 102 and the insertion hole 72, and the connection portions 22, 32 can be minimized. Therefore, the enlargement of the electrical junction box 1 can be prevented.

(Second Embodiment)
An “electric connection box” according to a second embodiment of the present invention will be described with reference to FIGS. 9-11, the same code | symbol is attached | subjected to the same component as 1st Embodiment mentioned above, and description is abbreviate | omitted.

  The electrical junction box of the second embodiment is provided with an electronic component mounting portion 8 ′ shown in FIGS. 9 to 11 instead of the electronic component mounting portion 8 described in the first embodiment. Other configurations are the same as those of the electrical junction box 1 of the first embodiment.

  The electronic component mounting portion 8 'includes a plurality of connecting portions 22, 22' and a block 80 '. The block 80 ′ includes a fitting portion 81 into which a connector of the wire harness is fitted, a plurality of connection portion insertion holes 82 that communicate with the fitting portion 81 and through which the connection portions 22 and 22 ′ are inserted, and a screw insertion hole 84. And are provided. One screw insertion hole 84 is provided at one end of the block 80 '.

  The connecting portion 22 ′ is provided on the low-pressure bus bar 2 ′, and has a width larger than that of the connecting portion 22 provided on the low-pressure bus bar 2. For this reason, the connecting portion 22 ′ is less likely to deform than the connecting portion 22 (that is, has higher rigidity). The electronic component mounting portion 8 ′ has four connection portions 22 ′ and four connection portions 22. Two of the four connecting portions 22 ′ are arranged in the vicinity of the screw insertion hole 84, and the remaining two are arranged at positions away from the screw insertion hole 84. The four connection portions 22 are arranged in a line between the connection portion 22 ′ in the vicinity of the screw insertion hole 84 and the connection portion 22 ′ away from the screw insertion hole 84.

  When the block 80 ′ is screwed to the wiring board 4, as shown in FIGS. 10 and 11, the inner surface of the connection portion insertion hole 82 abuts on the connection portion 22 ′, and the rigidity of the connection portion 22 ′ blocks the block 80 ′. The rotation of 80 'is restricted. In this state, there is a clearance between the connection portion 22 and the connection portion insertion hole 82, and no force is applied to the connection portion 22. For this reason, the deformation | transformation and position shift of the low voltage | pressure bus bar 2 which comprise the connection part 22 are prevented.

  That is, in the electronic component mounting portion 8 ′, the connection portion 22 ′ is disposed in the “near the screw insertion hole 84” where a large force is exerted when the block 80 ′ rotates. Even if force is applied, deformation and misalignment of the low-pressure bus bar 2 constituting the connecting portion 22 can be prevented while restricting the rotation of the block 80 'as described above.

  Further, in the electronic component mounting portion 8 ', since the rotation prevention can be realized even when the "block rotation prevention structure" such as the rib 44 described in the first embodiment is not provided, the shape of the routing board 4 and The shape of the manufacturing die for the wiring board can be simplified.

Incidentally, the four connecting portions 22 described above 'corresponds to the "second connecting portion" in the claims 1, two connecting portions 22 located in the vicinity of the screw insertion hole 84' is according to claim 2 " This corresponds to the “second connecting portion”.

  Further, the connection portion 22 ′ has the same thickness as the connection portion 22 and is formed to have a width larger than that of the connection portion 22. However, in the present invention, the connection portion 22 ′ (that is, the second connection portion) The thickness may be larger than that of the connection portion 22. In other words, the connecting portion 22 ′ only needs to be formed with higher rigidity than the connecting portion 22. In addition, in the present invention, the rigidity of the connection portion 22 ′ is adjusted by adjusting the composition of the metal plate constituting the connection portion 22 ′, such as using an alloy plate as the metal plate constituting the connection portion 22 ′. Higher than that. Further, the rigidity of the connecting portion 22 ′ may be made higher than that of the connecting portion 22 by subjecting a metal plate constituting the connecting portion 22 ′ to processing such as forging and heat treatment.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

1 Electrical junction box 2 Low pressure bus bar (bus bar)
3 High-pressure bus bar (bus bar)
4 wiring board 5 cover 8, 8 ', 9, 10 electronic component mounting part 21, 31 wiring part 22, 32 connection part 52 opening part 80, 80', 90, 100 block 81, 91, 101 fitting part 82 , 92,102 Connection part insertion hole

Claims (4)

A plurality of bus bars, a routing board in which the plurality of bus bars are routed, and a cover that covers the plurality of bus bars routed in the routing board,
Electricity in which at least one of the plurality of bus bars is provided with a wiring portion that extends along the wiring plate, and a connection portion that is bent and raised from the wiring portion toward the cover and is electrically connected to an electronic component. In the connection box,
It is formed separately from the wiring board and the cover, and includes a block that constitutes an electronic component mounting part together with the connection part,
A fitting part into which the electronic component is fitted to the block, a connection part insertion hole that is communicated in the fitting part and through which the connection part is inserted, and a screw insertion hole as a fixing part to the wiring board , it is provided,
The cover is provided with an opening for exposing the fitting portion ,
The electronic component mounting part is composed of a plurality of the connection parts and the blocks,
The plurality of connection parts include a first connection part and a second connection part having higher rigidity than the first connection part,
When the screw is passed through the screw insertion hole and the block is screwed to the routing plate, the inner surface of the connection portion insertion hole comes into contact with the second connection portion, so that the block rotates. An electrical junction box characterized by being regulated . The electrical connection box according to claim 1 , wherein the second connection portion is disposed closer to the screw insertion hole than the first connection portion. A plurality of bus bars, a routing board in which the plurality of bus bars are routed, and a cover that covers the plurality of bus bars routed in the routing board,
Electricity in which at least one of the plurality of bus bars is provided with a wiring portion that extends along the wiring plate, and a connection portion that is bent and raised from the wiring portion toward the cover and is electrically connected to an electronic component. In the connection box,
It is formed separately from the wiring board and the cover, and includes a block that constitutes an electronic component mounting part together with the connection part,
The block is provided with a fitting portion into which the electronic component is fitted, and a connection portion insertion hole that is communicated in the fitting portion and through which the connection portion is inserted,
The cover is provided with an opening for exposing the fitting portion ,
The fitting portion protrudes out of the cover through the opening;
An electrical junction box , wherein the cover is provided with guide ribs for guiding the fitting portion to the opening . The block is provided with a screw insertion hole as a fixing portion to the wiring board,
Ribs extending along the side end surface of the routing part are provided on the routing board,
When the screw is passed through the screw insertion hole and the block is screwed to the routing plate, the side end surface of the routing portion abuts on the rib, thereby restricting the displacement of the bus bar. The electrical junction box according to claim 3 .

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