JP2008092668A - Mounting structure of electric junction box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of an electric junction box which can be surely mounted to the side wall or the like of a vehicle with a sufficient mounting strength and can obtain a highly reliable water-proof function. <P>SOLUTION: In the mounting structure for fixing, to the side wall with a bracket, the electric junction box comprising an electric junction box body, electric components to be accommodated in the body and a cover covering the component accommodation part of the body, the bracket includes a side wall fixing part to be fixed to the side wall, a body fixing part to be fixed to the lower part of the body, an extension part extending upward along the body with the body fixed, and a cover fixing part provided to the extension part. Further, the bracket is fixed to the lower part of the body, the cover covers the body from above and is externally fitted on the body, with the upper part thereof fixed to the cover fixing part of the bracket. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an attachment structure for attaching an electrical junction box such as a relay block to a vehicle body or the like.

  As a conventional electrical junction box mounting structure, a structure described in Patent Document 1 has been proposed. FIG. 11 is a perspective view of a conventional electrical junction box mounting structure described in Patent Document 1. FIG.

The electrical junction box 100 includes a main cover 130 that accommodates a board on which electronic components are mounted, an under cover 111 that covers a lower opening of the main cover 130, and an upper that covers the main cover 130 and the under cover 111 from above the main cover 130. And a cover 112. Then, the electrical connection box 100 is fixed to the side wall by fixing the under cover 111 to the side wall of the vehicle with bolts.
Japanese Patent Laying-Open No. 2004-140956 (FIG. 1)

  Since the attachment structure of the electrical connection box 100 described in Patent Document 1 is provided with an attachment portion on the lower surface of the electrical connection box 100, when the lower surface of the electrical connection box 100 is attached to the side wall of the vehicle, the electrical connection box 100 is It is attached only by the attachment member 111B of the under cover 111 which is the lower surface. Therefore, since it is attached with only a small part of the lower surface, when the electrical connection box 100 is vertically long and long due to the electrical components accommodated in the electrical connection box 100, the mounting strength is insufficient, vibration and The main body will be deformed during assembly.

  Further, when the electrical connection box 100 is vertically long and vertically long, the upper cover 112 is also vertically long. However, since the upper cover 112 is only fixed to the under cover 111, the attachment strength of the vertically long upper cover 112 becomes insufficient, and the upper cover 111 may be detached due to vibration or the like.

  Moreover, since the lower surface side of the electrical junction box 100 is not covered with the upper cover 112, when the lower surface is attached to the side wall, water may enter the electrical junction box from the lower surface side.

  An object of the present invention is to solve the above-described problem, and it is possible to securely attach the electrical junction box to a vehicle side wall or the like with sufficient attachment strength and to provide a highly reliable waterproof function. To provide a structure.

The above object of the present invention is achieved by the following configurations.
(1) In an electrical junction box mounting structure in which an electrical junction box consisting of an electrical junction box main body, an electrical component accommodated in the main body, and a cover that covers the component accommodating portion of the main body is fixed to a side wall by a bracket.
The bracket is fixed to the side wall, a side wall fixing part, a main body fixing part fixed to the lower part of the main body, an extension part extending upward along the main body in the main body fixing state, and the extension part The bracket is fixed to the lower portion of the main body, the cover is covered from above the main body and is externally fitted to the main body, and the upper portion is the cover fixing portion of the bracket. An electrical junction box mounting structure characterized by being fixed to

(2) The mounting structure of the electric junction box according to (1), wherein the bracket is composed of a side wall fixing bracket and a cover fixing bracket.
(3) The description of (1) or (2), wherein the cover fixing portion is slidably coupled to the fixed portion by moving the cover downward to fix the cover to the second bracket. Electric junction box mounting structure.

According to the configuration of (1), since the bracket is fixed to the lower part of the electric connection box body and the bracket side wall fixing portion is fixed to the side wall, the mounting strength is reduced even if the electric connection box is vertically long. And the electrical junction box can be securely fixed to the side wall.
In addition, since the cover is covered from above the main body and fixed to the lower part of the main body, the entire main body is completely covered, and a highly reliable waterproof function can be obtained.

  According to the configuration of (2), since the bracket is composed of the side wall fixing bracket and the cover fixing bracket, the bracket can have a simple structure and can be easily molded.

  According to the configuration of (3), since the cover and the second bracket are also fixed by the operation of covering the main body with the cover, the cover can be fixed with a simple operation.

  According to the present invention, even a vertically long electric junction box can be reliably fixed to the side wall without removing the cover. In addition, a highly reliable waterproof function of the electrical junction box can be obtained.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
1 is a perspective view of an electrical junction box 10 according to an embodiment of the present invention, FIG. 2 is a perspective view of an electrical junction box body 12 constituting the electrical junction box 10, and FIG. 3 is a first perspective view of the electrical junction box 10. FIG. 4 is a perspective view of the second bracket 16 constituting the electrical junction box 10, and FIG. 5 is a perspective view of the cover 18 constituting the electrical junction box 10.

  As shown in FIGS. 1 to 5, the electrical junction box 10 includes an electrical junction box main body 12, a first bracket 14 and a second bracket 16 for attaching the main body 12 to a vehicle body, and the main body 12 from above. The cover 18 covers the entire main body.

  The main body 12 houses electrical components such as power integration, a cassette relay block, a fuse, a relay, a connector holder, and a bus bar. On the bottom surface of the main body 12, a first bracket mounting portion 20 for mounting the first bracket 14 and a second bracket mounting portion 22 for mounting the second bracket are provided.

  As shown in FIG. 3, the first bracket 14 is made of a plate material extending in the vertical direction, and a main body fixing portion 24 fixed to the side surface of the main body 12 is provided on one side portion of the plate material, and the upper portion on the other side. A bolt hole 26 for fixing the first bracket 14 to the body side wall with a bolt is formed. In addition, a main body fixing portion 28 attached to the lower surface of the main body 12 is provided at the lower portion of the plate material. Therefore, the first bracket 14 is fixed to the side surface and the lower surface of the main body 12.

  As a fixing structure between the first bracket 14 and the main body 12, for example, a structure in which both fixing portions are slidably fitted by dovetail grooves can be adopted, and both the fixing portions are fitted by moving the first bracket in the horizontal direction. Can be made.

  As shown in FIG. 4, the 2nd bracket 16 consists of a block body extended in an up-down direction, and one part is thinned. A cover fixing portion 30 that is fixed to the upper side surface of the cover 18 is provided at the upper part on one side of the second bracket 16, and the second bracket 16 is fixed to the vehicle body with bolts at the upper part on the other side. Bolt holes 32 are formed.

  Further, a main body fixing portion 34 attached to the lower surface of the main body 12 is provided at the lower portion of the block body. The second bracket 16 is fixed to the lower surface of the main body 12 and is fixed to the upper side surface of the cover 18 that covers the main body 12.

  As the fixing structure of the second bracket 16 and the main body 12, as with the first bracket 14, for example, a structure in which both fixing portions are slidably fitted by dovetail grooves can be adopted, and the second bracket 16 is horizontally oriented. It can be moved and both fixed parts can be fitted.

  As shown in FIG. 5, the cover 18 is formed in a shape that covers the entire main body 12, and the lower portion is opened so as to be fitted to the main body 12. A bracket fixing portion 36 to which the second bracket 16 is fixed is provided at the upper part of one side surface of the cover 18, and the lower part of the other side surface is for protecting the wire harness extending from the electronic component housed in the main body 12. A harness protection part 38 is formed.

  In the state before the cover 18 is put on the main body 12, as shown in FIG. 6, a space in which the cover 18 can enter is formed between the cover fixing portion 30 of the second bracket 16 and the main body 12. ing. Similarly, a gap through which the cover 18 can enter is formed between the first bracket 14 and the main body 12 above the main body fixing portion 28 of the first bracket 14.

  When the cover 18 is put on the main body 12, the cover fixing portion 30 of the second bracket 16 is fitted with the bracket fixing portion 36 of the cover 18, and the cover 18 is fixed to the second bracket 16. At this time, the lower portion of the cover 18 is also fixed by fitting with the main body 12.

  Next, assembly of the electrical junction box 10 will be described. FIG. 6 is a perspective view of a state in which various electrical components are assembled to the main body 12. The main body 12 accommodates a cassette relay block 40, a power integration 42, and the like. In order to assemble them, first, a fuse terminal and a relay terminal are mounted on the cassette relay block 40, and a fuse and a relay are fitted to these terminals, respectively.

  Next, the cassette relay block 40 is mounted on the main body 12 on which the first bracket 14 is mounted in advance. Next, the power integration 42 is fitted into the main body 12. Next, the power connector is fitted to the cassette relay block 40, and the connector is fitted to the power integration. Next, the bonder is mounted on the cassette relay box, and the connector holder is fitted.

  Next, as shown in FIG. 6, the wire-to-wire connector 44 is fitted into the connector holder, the main harness is fixed to the main body with a tie band, and the second bracket 16 is fixed to the main body 12. In this state, the first bracket 14 is fixed to the vehicle body with bolts using the bolt holes formed in the first bracket 14. Next, the second bracket 16 is fixed to the vehicle body with bolts using the bolt holes 32 formed in the second bracket 16.

  Next, as shown in FIG. 7, the through connector 48 to which the engine harness 46 is connected is fitted to the wire-to-wire connector 44. Next, as shown in FIG. 8, the engine harness 46 is fixed to the second bracket 16 by the tie band 50.

  Finally, as shown in FIG. 9, the cover 18 is put on the main body 12 from above, and the bracket fixing portion 36 of the cover 18 is fitted and fixed to the cover fixing portion 30 of the second bracket 16. The cover 18 is formed with a lower opening slightly larger than the main body 12 so as to be fitted to the side surface of the main body 12 from the outside.

  FIG. 10 is a perspective view of the electrical junction box 10 with the cover 18 fixed. The bracket fixing portion 36 provided on the upper portion of the cover 18 is fitted to the cover fixing portion 30 provided on the upper portion of the second bracket 16, and the cover 18 is fixed to the second bracket 16.

  The bracket fixing portion 36 of the cover 18 includes a lock arm 54 having a lock claw 52 and is provided so as to protrude from the side surface of the cover 18. Protection walls 56 are provided on both sides of the lock arm 54. The cover fixing portion 30 of the second bracket 16 includes a frame body 60 having a U-shaped cross section that fits around the bracket fixing portion 36 and a lock claw 62. Then, the bracket fixing portion 36 of the cover 18 is slid and fitted to the cover fixing portion 30 of the second bracket 16 by the operation of covering the main body 12 with the cover 18 from above.

  As described above, since the lower part of the electrical junction box body 12 is fixed to the vehicle body by the first bracket 14, it can be stably and securely attached to the vehicle body even if the body 12 has a vertically long configuration. Can do. Moreover, since the upper part of the cover 18 is fixed to the upper part of the second bracket 16 fixed to the lower part of the main body 12, even if the cover 18 has a vertically long configuration, it is stably and reliably fixed to the main body. Furthermore, since the cover 18 covers the entire body 12 from above and is fitted and fixed to the body 12, reliable waterproofness can be obtained.

It is a perspective view of the electrical junction box which is an embodiment of the present invention. It is a perspective view of an electric junction box main part. It is a perspective view of the 1st bracket. It is a perspective view of the 2nd bracket. It is a perspective view of a cover. It is a perspective view in the state where electronic parts were mounted on the electrical junction box body. It is a perspective view when attaching a through connector to an electric junction box body. It is a perspective view of the state where a through connector was attached to an electric junction box body and an engine harness was fixed. It is a perspective view when a cover is put on an electric junction box main part. It is a perspective view of the electrical junction box after completion of assembly. It is a disassembled perspective view of the conventional electrical junction box.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Electrical junction box 12 Electrical junction box main body 14 1st bracket 16 2nd bracket 18 Cover 20,22,36 Bracket fixing | fixed part 24,28,34 Main body fixing | fixed part 26 Bolt hole 30 Cover fixing | fixed part 32 Bolt hole 38 Harness protection part 40 Cassette relay block 42 Power integration 44 Wire-to-wire connector 46 Engine harness 48 Through connector 50 Tie band

Claims (3)

In the electrical connection box mounting structure for fixing the electrical connection box consisting of an electrical connection box main body, an electrical component accommodated in the main body, and a cover that covers the component accommodating portion of the main body to the side wall by a bracket,
The bracket is fixed to the side wall, a side wall fixing part, a main body fixing part fixed to the lower part of the main body, an extension part extending upward along the main body in the main body fixing state, and the extension part The bracket is fixed to the lower portion of the main body, the cover is covered from above the main body and is externally fitted to the main body, and the upper portion is the cover fixing portion of the bracket. An electrical junction box mounting structure characterized by being fixed to   The mounting structure for an electrical junction box according to claim 1, wherein the bracket is composed of a side wall fixing bracket and a cover fixing bracket.   3. The electrical connection box according to claim 1, wherein the cover fixing portion is slidably coupled to the fixed portion by moving the cover downward to fix the cover to the second bracket. Construction.

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