JP2006136129A - Electric connection box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector box so constructed that the box body and its cover are disposed with a dash panel in-between and easy to install. <P>SOLUTION: The connector box 4 is so constructed that the box body 5 is placed on one side of a dash panel 1 having an opening 2, and the cover 6 is placed on the other side of the dash panel 1; and the cover and the box body 5 are fastened by a final fastening means. The box body 5 is provided with body temporarily fastening portions 10 that temporarily fasten it to the periphery of the opening 2 in the dash panel 1. The cover 6 and the box body 5 are provided with cover temporarily fastening means 16 for temporarily fastening the cover 6 to the box body 5. The body temporarily fastening means 10 are so constructed that the body 5 is sandwiched between a flange 11 abutted against the periphery of the opening 2 in the dash panel 1 and elastic anchoring projections 15 provided on protruded plate portions 13, so that they can be elastically and flexibly deformed, and that the box body is thereby temporarily fastened to the dash panel 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electrical junction box that houses electrical components.

  An electrical junction box is installed at an appropriate position of the vehicle for relaying the wire harness and collecting / branching each wiring of the wire harness. As a conventional example of the electrical junction box installation structure, there is one disclosed in Patent Document 1 shown in FIG. In FIG. 6, the electrical junction box 50 has a seat surface portion 52 at the upper end of the box body 51 and a locking protrusion 53 at the lower end. Bolt insertion holes 54 are formed in the seat surface portion 52. The locking protrusion 53 is formed with a groove 53a that opens downward.

  On the other hand, a stud 56 is projected from the position of the panel 55 where the electrical junction box 50 is installed. A locking hole 57 is formed at a position below the stud bolt 56.

  In the above configuration, the locking protrusion 53 of the electrical connection box 50 is inserted into the locking hole 57 of the panel, and the panel 55 is locked by the cut groove 53a of the locking protrusion 53 inserted into the locking hole 57. The periphery of the hole 57 is sandwiched. Thereby, the electrical junction box 50 is temporarily fixed to the panel 55.

  Next, the bolt insertion hole 54 of the seat surface portion 51 of the electrical connection box 50 is inserted into the stud bolt 56 of the panel 55. A nut 58 is screwed into the stud bolt 56 protruding from the seat surface portion 51. Thus, the electrical junction box 50 is fixed to the panel 55.

  According to this conventional example, since the electrical connection box 50 is temporarily fixed to the panel 55 when the nut 58 is screwed in when the electrical connection box 50 is fixed to the panel 55, the fixing work to the panel 55 is not performed. Easy.

  By the way, some electric connection boxes arranged in vehicles such as trucks are installed on a dash panel that partitions the cabin side from the front side. The electrical connection box installed on this dash panel is mainly installed to connect the connector between the cabin side wire harness routed on the cabin side and the chassis side wire harness routed on the front chassis side. It is more functional to install as follows.

That is, open a large opening for harness insertion in the dash panel, cover the box body so that this opening covers from the cabin side of the dash panel, and cover so that the opening covers from the front chassis side of the dash panel Place each one. And the box main body and cover which were arrange | positioned from the both sides of a dash panel are fixed. If it does in this way, the waterproofing measure of the dash panel of the location which lets a wire harness pass, and storage of the connector which connects both wire harnesses, protection, etc. can be performed easily using an electrical junction box.
JP-A-11-266514

  However, the electrical connection box temporary fixing structure of the conventional example is for temporarily fixing the electrical connection box 50 itself, and assumes the case where the temporary fixing operation and the main fixing operation are performed from the same side of the dash panel 55. Therefore, the temporary fixing structure of the conventional example cannot be used for the electrical junction box installed with the dash panel 55 interposed therebetween. Therefore, in the electrical junction box installed with the dash panel 55 interposed therebetween, the installation work is very troublesome.

  Therefore, the present invention has been made to solve the above-described problems, and is to dispose a box body and a cover with a panel interposed therebetween, and to provide an electrical junction box that can be easily installed. Objective.

  According to the first aspect of the present invention, a box body is disposed on one side of the opening provided in the panel, a cover is disposed on the other side of the opening, and the cover and the box body are fixed by the fixing means. In the electrical junction box, the box body is provided with a body temporary fixing portion that temporarily fixes the box body around a periphery of the opening.

  The invention according to claim 2 is the electrical junction box according to claim 1, wherein the cover and the box body are provided with a cover temporary fixing means for temporarily fixing the cover to the box body. To do.

  A third aspect of the present invention is the electrical junction box according to the first or second aspect, wherein the main body temporary fixing portion has a flange portion that comes into contact with one surface of the peripheral edge of the opening portion, and a front side of the flange portion. And a protruding plate portion that is inserted into the opening portion, and an elastic locking projection that is provided on the protruding plate portion so as to be elastically deformable. The protruding plate portion is inserted into the opening portion. Then, the elastic latching protrusion is elastically deformed and inserted into the opening, and when the elastic latching protrusion passes through the opening, the elastic latching protrusion is elastically deformed and deformed to be engaged with the other surface of the peripheral edge of the opening. It is characterized by doing.

  According to a fourth aspect of the present invention, there is provided the electrical junction box according to the third aspect, wherein the cover temporary fixing means includes a locking claw provided on the protruding plate portion of the box body, and an engagement provided on the cover. When the cover is brought close to be disposed on the other side of the opening, the protruding plate portion is bent and deformed to allow the cover to move, and the locking claw and the locking When the positions of the holes coincide with each other, the protruding plate portion is elastically bent and restored and the locking claws are locked in the locking holes.

  The invention according to claim 5 is the electrical junction box according to any one of claims 1 to 4, wherein the main fixing means includes a bolt and a nut for fixing the box body and the cover by fastening. It is characterized by comprising.

  The invention according to claim 6 is the electrical junction box according to claim 5, wherein the bolt is an implanted bolt fixed to the box body, and the implanted bolt is connected to the bolt insertion hole of the panel and the cover. A nut is screwed into the stud bolt that passes through the bolt insertion hole and protrudes from the bolt insertion hole of the cover.

  According to the first aspect of the present invention, since the box body is temporarily fixed to the panel by the body temporary fixing portion, the operator arranges the cover from the other side of the panel without holding the box body, and the cover and the box The main fixing work with the main body can be performed. Accordingly, the box body and the cover are arranged with the panel interposed therebetween, and the installation work can be facilitated.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, it is possible to perform the main fixing operation between the cover and the box body without holding the cover.

  According to the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, when the box body is arranged at a predetermined position from one side of the panel, the box body is temporarily fixed to the panel in this process. Therefore, it is not necessary to perform a special operation for temporarily fixing the box body.

  According to the invention of claim 4, in addition to the effect of the invention of claim 1 or 2, when the cover is disposed at a predetermined position from the other side of the panel, the cover is temporarily fixed to the box body in this process. Therefore, it is not necessary to perform a special operation for temporarily fixing the cover.

  According to the invention of claim 5, in addition to the effects of the inventions of claims 1 to 4, the cover can be securely fixed to the box body by the bolt and the nut.

  In addition to the effect of the invention of claim 5, the invention of claim 6 can be permanently fixed by fastening a nut from the same side on which the cover is arranged. Therefore, this fixing work is easy.

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

  1 to 5 show an embodiment in which the electrical junction box of the present invention is applied to a connector box, FIG. 1 is a perspective view of the connector box 4, FIG. 2 is an exploded perspective view of the connector box 4, and FIG. FIG. 4 is a plan view of the box body 5 and FIG. 5 is a perspective view of the body temporary fixing portion 10.

  1 to 3, a cabin of a vehicle such as a truck and a front chassis side ahead thereof are partitioned by a dash panel 1 which is a panel. A square opening 2 is formed at a position where the wire harness (not shown) of the dash panel 1 is passed. Bolt insertion holes 3 are formed at positions near the four corners of the opening 2 of the dash panel 1. A connector box 4, which is an electrical connection box, is installed so as to sandwich the dash panel 1.

  The connector box 4 includes a box body 5 disposed on the cabin side (one side) of the dash panel 1 and a cover 6 disposed on the front chassis side (the other side) of the dash panel 1.

  As shown in detail in FIGS. 2 and 4, the box main body 5 has a rectangular box shape, and a plurality of connector housing chambers 7 are formed by partition walls 8 therein. Connector fixing portions 9 are provided at appropriate positions of the partition wall 8. A front surface of the box body 5 is opened to the whole, and a hole (not shown) for passing the wire harness is opened at a proper position on the back surface side. A main body temporary fixing portion 10 is provided on the peripheral edge on the front side where the box main body 5 is opened.

  As shown in detail in FIGS. 2, 3, and 5, the main body temporary fixing portion 10 includes a flange portion 11 that is in contact with the cabin side of the periphery of the opening 2 of the dash panel 1, and an inner edge of the flange portion 11. A guide frame 12 projecting forward, a projecting plate portion 13 projecting further forward than six locations of the guide frame 12 and elastically deformable, and a notch 14 in each projecting plate portion 13 (see FIG. 5). It is comprised from the elastic latching protrusion 15 provided so that elastic deformation could be carried out by inserting. That is, the main body temporary fixing part 10 temporarily fixes the box main body 5 by sandwiching the periphery of the opening 2 of the dash panel 1 between the flange part 11 and the elastic locking projection 15.

  A locking claw 17 is formed on the inner surface side of each protruding plate portion 13.

  In addition, implanted bolts 18, which are bolts, are erected at the four corner positions of the flange portion 11 having a rectangular frame shape. Each of the studs 18 is inserted into a bolt insertion hole 3 of the dash panel 1 and a bolt insertion hole 23 described below of the cover 6.

  As shown in FIGS. 1 to 3, the cover 6 has a quadrangular shape in which half is bulged to the front side and the other half is bulged to the front side, and the back side is opened. Yes. Inner walls 21 covered with a cover 20 are provided at six locations on the periphery of the opened cover 6. Each inner wall 21 is formed with a locking hole 22. The cover 6 is temporarily fixed to the box body 5 by the locking claws 17 of the box body 5 being locked in the locking holes 22 of the cover 6. That is, the cover temporary fixing means 16 is constituted by the locking hole 22 and the locking claw 17.

  In addition, bolt insertion holes 23 through which the studs 18 are inserted are formed at the four corner positions of the rectangular cover 6. A nut 24 is screwed into each of the studs 18 protruding from the bolt insertion hole 23 of the cover 6. The dash panel 1 and the cover 6 are fastened together by the studs 18 and nuts 24 of the box body 5, whereby the box body 5 and the cover 6 are permanently fixed with the dash panel 1 interposed therebetween. That is, the fixing means 25 is composed of the studs 18 and the nuts 24.

  Grommet fitting holes 26 (shown in FIG. 3) are formed in the side wall of the cover 6. By fitting a grommet 27 attached to a wire harness (not shown) into the grommet fitting hole 26, the wire harness (not shown) is introduced into the cover 6 while ensuring waterproofness.

  Next, an example of the installation procedure of the connector box 4 will be briefly described. One end side of a wire harness (not shown) to which the front chassis side grommet 27 is attached is inserted into the cabin side from the opening 2 of the dash panel 1. On the other hand, a cabin side wire harness (not shown) is passed through a hole (not shown) on the back side of the box body 5 and pulled out to the front side of the box body 5. Then, connectors are fitted between the wire harnesses on both the front chassis side and the cabin side, and the fitted connectors 30 (shown in FIG. 3) are arranged in a desired connector housing chamber 7 of the box body 5, and And fixed to the connector fixing portion 9. The connector fitting between the wire harnesses may be performed after temporarily fixing the box body 5 to the dash panel 1.

  Next, the studs 18 of the box body 5 are aligned with the bolt insertion holes 3 of the dash panel 1 and the protruding plate portions 13 are aligned with the openings 2 of the dash panel 1 and inserted from the cabin side. Then, each elastic locking projection 15 is elastically deformed and deformed to the inner peripheral side, and the protruding plate portion 13 is inserted into the opening 2. When each elastic locking projection 13 passes through the opening 2, it is elastically deformed and opened. The peripheral edge of the portion 2 is locked to the front chassis side. The box body 5 is temporarily fixed by sandwiching the periphery of the opening 2 of the dash panel 1 with the flange portion 11 and the elastic locking projection 15.

  Next, after the grommet 27 of the wire harness (not shown) is fitted into the grommet fitting hole 26 of the cover 6, the cover 6 is inserted into the bolt insertion hole 23 of the cover 6 while the cover 6 is inserted into the front chassis side. To the opening 2 of the dash panel 1. When the peripheral edge of the back surface side of the cover 6 is brought close to contact with the front chassis side surface of the dash panel 1, each projecting plate portion 13 is bent and deformed to allow insertion of each inner wall 21, and the inner wall 21 is formed into the projecting plate portion 13. Inserted along. When the cover 6 is moved to the dash panel 1 side until the positions of the locking claw 17 and the locking hole 22 coincide with each other, the protruding plate portion 13 is elastically bent and restored and the locking claw 17 is engaged with the locking hole 22. Stopped. The cover 6 is temporarily fixed to the box body 5 by locking the locking claws 17 of the box body 5 in the locking holes 22 of the cover 6.

  Next, nuts 24 are screwed into the studs 18 projecting from the bolt insertion holes 23 of the cover 6. The dash panel 1 and the cover 6 are fastened together by the studs 18 and nuts 24 of the box body 5, whereby the box body 5 and the cover 6 are permanently fixed with the dash panel 1 interposed therebetween.

  As described above, according to the connector box 4 described above, the box main body 5 is temporarily fixed to the dash panel 1 by the main body temporary fixing portion 10, so that the operator can attach the cover 6 to the front of the dash panel 1 without holding the box main body 5. The main fixing operation of the cover 6 and the box body 5 can be performed by arranging from the chassis side. Therefore, in the connector box 4 in which the box body 5 and the cover 6 are arranged with the dash panel 1 in between, the installation work is easy.

  In this embodiment, the cover 6 and the box main body 5 are provided with the cover temporary fixing means 16 for temporarily fixing the cover 6 to the box main body 5, so that the cover 6 and the box main body 5 can be held without holding the cover 6. This fixing work can be performed.

  In this embodiment, the main body temporary fixing portion 10 is provided with a flange portion 11 that is in contact with the cabin side of the periphery of the opening portion 2 of the dash panel 1, and projects forward from the flange portion 11. The projection plate portion 13 is inserted into the projection plate portion 13, and the projection plate portion 13 is provided with an elastic locking projection 15 that is elastically bent and deformable. The projection plate portion 13 is inserted into the opening portion 2 of the dash panel 1. Then, the elastic locking projection 15 is elastically deformed and inserted into the opening 2, and when it passes through the opening 2, the elastic locking projection 15 is elastically bent and deformed to be deformed on the other surface of the periphery of the opening 2. Since the box main body 5 is disposed at a predetermined position from the cabin side of the dash panel 1, the box main body 5 is temporarily fixed to the dash panel 1 in this process. Therefore, it is not necessary to perform a special operation for temporarily fixing the box body 5.

  In this embodiment, the cover temporary fixing means 16 includes a locking claw 17 provided in the protruding plate portion 13 of the box body 5 and a locking hole 22 provided in the inner wall 21 of the cover 6. Is moved closer to the front chassis side of the dash panel 1, the protruding plate portion 13 is bent and deformed, and the protruding plate portion 13 is inserted along the inner wall 21. When the positions of the locking claws 17 and the locking holes 22 coincide, the protruding plate Since the portion 13 is elastically bent and deformed and the locking claw 17 is locked in the locking hole 22, when the cover 6 is disposed at a predetermined position from the front chassis side of the dash panel 1, the cover 6 is moved to the box body 5 in this process. Temporarily fixed. Therefore, it is not necessary to perform a special operation for temporarily fixing the cover 6.

  In this embodiment, the fixing means 25 is composed of the studs 18 and the nuts 24 that fix the box body 5 and the cover 6 by fastening, so that the cover 6 can be securely fixed to the box body 5.

  In this embodiment, the bolt is a stud bolt 18 fixed to the box body 5, and the stud bolt 18 passes through the bolt insertion hole 3 of the dash panel 1 and the bolt insertion hole 23 of the cover 6, and the cover 6 Since the nut 24 is screwed into the stud bolt 18 projecting from the bolt insertion hole 23, it can be fixed by fastening the nut 24 from the same side where the cover 6 is disposed. Therefore, this fixing work is easy.

  In this embodiment, the electrical connection box is the connector box 4, but any electrical housing can be used as long as it accommodates electrical components. Of course, the present invention can be applied to a joint box, a fuse box, and the like. .

1 is a perspective view of a connector box according to an embodiment of the present invention. 1 is an exploded perspective view of a connector box according to an embodiment of the present invention. 1 is a cross-sectional view of a connector box according to an embodiment of the present invention. FIG. 3 is a plan view of the box body according to the embodiment of the present invention. 1 is a perspective view of a main body temporary fixing portion according to an embodiment of the present invention. It is sectional drawing of the installation structure of the electrical junction box of a prior art example.

Explanation of symbols

1 Dash panel (panel)
2 Opening 3 Bottle insertion hole 4 Connector box (electric connection box)
DESCRIPTION OF SYMBOLS 5 Box main body 6 Cover 10 Main body temporary fixing part 11 Flange part 13 Projection plate part 15 Elastic locking protrusion 16 Cover temporary fixing means 17 Locking claw 18 Stud bolt (bolt)
22 Locking hole 23 Bolt insertion hole 24 Nut 25 This fixing means

Claims (6)

A box body is disposed on one side of the opening provided in the panel, a cover is disposed on the other side of the opening, and the cover and the box body are electrical connection boxes fixed by the fixing means,
An electrical junction box, wherein the box body is provided with a body temporary fixing portion for temporarily fixing the box body at the periphery of the opening. The electrical junction box according to claim 1,
An electrical junction box, wherein the cover and the box body are provided with cover temporary fixing means for temporarily fixing the cover to the box body. The electrical junction box according to claim 1 or claim 2,
The main body temporary fixing portion has a flange portion that comes into contact with one surface of the periphery of the opening portion, a protruding plate portion that protrudes forward from the flange portion and is inserted into the opening portion, and an elastic member that is elastic to the protruding plate portion. And an elastic locking protrusion provided so as to be freely deformable. When the protruding plate portion is inserted into the opening, the elastic locking protrusion is elastically deformed and inserted into the opening. The electrical connection box is characterized in that the elastic locking projection is elastically bent and returned and deformed to be locked to the other surface of the peripheral edge of the opening when passing through the portion. An electrical junction box according to claim 3,
The cover temporary fixing means has a locking claw provided in the protruding plate portion of the box body and a locking hole provided in the cover, and the cover is disposed on the other side of the opening. As close as possible, the protruding plate portion is deformed to allow the cover to move, and when the position of the locking claw and the locking hole coincides, the protruding plate portion is elastically deformed to return and deform. An electrical connection box, wherein a pawl is locked in the locking hole. The electrical junction box according to any one of claims 1 to 4,
The main fixing means is constituted by a bolt and a nut which fix the box body and the cover by fastening. The electrical junction box according to claim 5,
The bolt is an implanted bolt fixed to the box body, and the implanted bolt penetrates the bolt insertion hole of the panel and the bolt insertion hole of the cover and protrudes from the bolt insertion hole of the cover. An electrical junction box, wherein a nut is screwed into a bolt.

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