JP3274379B2 - Mounting structure of electrical junction box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for fixing an electric junction box such as a junction box used for interconnecting wire harnesses to a vehicle body panel or the like.

[0002]

2. Description of the Related Art FIGS. 4 and 5 (Japanese Utility Model Laid-Open No. 4-86026) show a conventional structure for mounting a junction box to a vehicle body.
No.) and FIG. 6 (Japanese Utility Model Application Laid-Open No. 64-54716). A junction box 10 as an electric connection box shown in FIGS. 4 and 5 includes a rectangular cylindrical locking bracket 12 on the upper end side of a junction box body 11.
Brackets 13 for fastening and fixing each having a long hole 13a for bolt insertion formed at the lower end side are provided. The locking bracket 12 is a mounting bracket 14 on the panel side of the vehicle body.
The bracket 13 for fastening and fixing is fastened and fixed to the vehicle body via bolts (not shown).

[0006] A junction box 20 shown in FIG. 6 has a pair of locking pins 22, 22 formed at the upper end of a junction box main body 21 and a long hole 23 a for inserting a bolt at the lower end. 23 are provided. The pair of locking pins 22, 22 are engaged with a pair of engaging holes 24 of a mounting bracket 24 on the panel side of the vehicle body.
a, 24a, which are inserted and locked, and a fastening and fixing bracket 23 is attached to another mounting bracket 2 attached to the vehicle body.
The fifth bolt 26 is fastened and fixed to the vehicle body via a nut (not shown).

[0004]

However, FIG.
In the conventional mounting structure shown in FIG. 5, when there is a route of the wire harness 15 between the locking bracket 12 of the junction box 10 and the mounting bracket 14 on the vehicle body side, as shown in FIG. There is a possibility that the bracket 14 may damage the electric wire 15a of the wire harness 15. Further, since the locking bracket 12 of the junction box 10 and the mounting bracket 14 on the vehicle body side have a plug-in structure, the junction box 10 is groped in the narrow space such as the interior of the instrument panel of an automobile or the lower surface of the floor. It was difficult to position when assembling. Further, in another conventional mounting structure shown in FIG. 6, a pair of locking pins 2 of the junction box 20 are also provided.
Since the pair of engagement holes 24a, 24a of the mounting bracket 24 on the vehicle body side have a plug-in structure, the same problem as the conventional mounting structure shown in FIGS.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electric junction box mounting structure capable of improving the workability of assembling the mounting bracket.

[0006]

According to a first aspect of the present invention, an electric connection box is provided at one end thereof with a locking portion which is engaged with and disengaged from an engaging portion of a mounting bracket. In the mounting structure of an electric connection box, which can be fastened and fixed to a mounting body via a fastening means, the locking portions are provided on both side surfaces of the electric connection box, and the locking portions are provided on both sides of the mounting bracket. It is characterized in that it can be freely disengaged from the upper opening side of each of the provided engaging portions.

[0007] In this mounting structure of the electric connection box, the electric connection box is easily positioned and mounted on the mounting bracket without damaging the electric wires such as the wire harness, and the assembling workability is improved.

According to a second aspect of the present invention, there is provided the electrical junction box mounting structure according to the first aspect, wherein each of the locking portions is formed in a wedge shape, and a V-shaped insertion groove is formed in each of the engagement portions. Is provided.

In this mounting structure of the electric junction box, the assembling work in a narrow space becomes easy, and the wedge-shaped engaging portions of the electric junction box and the V-shaped insertion grooves of the respective engaging portions of the mounting bracket. No rattling occurs between the two, and wear and vibration of the two are reliably prevented.

According to a third aspect of the present invention, there is provided the electrical junction box mounting structure according to the second aspect, wherein the wedge-shaped locking portion is formed by an inverted triangular prism-shaped projection and a flange projecting outward from the projection. It is characterized by the following.

In this mounting structure for an electric junction box, each of the locking portions is securely locked to each of the engaging portions of the mounting bracket by the flange located outside from the projection of each of the locking portions. The locking portions do not come off from the engaging portions of the mounting bracket.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 to FIG. 3 show an electric junction box mounting structure according to an embodiment of the present invention. The junction box 1 as an electric connection box is made of a synthetic resin upper and lower cover.
There is provided a box-shaped junction box body 2 composed of 3, 4. Wedge-shaped locking portions 5 and 5 are integrally formed on upper sides of the left and right side surfaces 3a and 3a of the upper cover 3 of the junction box body 2, respectively. At the center of the lower surface of the upper cover-3 of the junction box body 2, a fastening and fixing bracket 6 having an elongated hole 6a for bolt insertion is integrally formed. Each of the locking portions 5 is connected to an upper mounting bracket (mounted body) 7 on the panel side of the vehicle body.
a of a metal plate mounting bracket 8 which is fixed to the mounting bracket 8a via a predetermined means. The mounting bracket 8 for fastening and fixing is attached to a lower mounting bracket (to be mounted) on the panel side of the vehicle body. The body 7b is fastened and fixed via bolts (fastening means) 9.

As shown in FIGS. 1 to 3, each of the wedge-shaped locking portions 5 has an inverted triangular prism-shaped projection 5a integrally formed on the upper cover 3, and is slightly larger outward from the projection 5a. And an inverted triangular plate-shaped flange 5b formed integrally and integrally. The engaging portions 8a for engaging and disengaging the wedge-shaped engaging portions 5 are located on both sides of the mounting bracket 8 which are bent so as to be perpendicular to both end sides thereof. A V-shaped insertion groove 8b is formed on the lower side. The projections 5a of the locking portions 5 are detachable from the upper openings of the engaging portions 8a into the V-shaped insertion grooves 8b.

According to the mounting structure of the electric junction box of the embodiment described above, the shape of each engaging portion 8 on both sides of the mounting bracket is each locking portion 5 on both side surfaces 3a of the junction box 1.
Are formed in a V-shape in close contact with each other, so that each locking portion 5 is inserted through the upper opening of the V-shaped insertion groove 8b of each engaging portion 8a.
The junction box 1 can be easily assembled on both sides of the mounting bracket 8 by inserting and hooking the projection 5a. In this insertion, as the protrusion 5a of each locking portion 5 of the junction box 1 fits deeper into the V-shaped insertion groove 8b of each engagement portion 8a of the mounting bracket 8, the insertion groove 8b The gap of 5a is reduced, and when it is fitted to the end, it is inserted without rattling. When the projections 5a of the locking portions 5 of the junction box 1 are inserted into the V-shaped insertion grooves 8b of the engaging portions 8a of the mounting bracket 8 without any gap, the bolts are automatically moved to the bolted position. It is led to. That is, the position of the long hole 6a for bolt insertion of the bracket 6 for fastening and fixing of the junction box 1 and the position of the screw hole 7b for bolt fastening of the lower mounting bracket 7b match.

As described above, the locking portions 5 are provided on both side surfaces 3a, 3a of the junction box 1, and the locking portions 5 are provided on the upper openings of the respective engaging portions 8a provided on both sides of the mounting bracket 8. I made it freely detachable from the side,
The junction box 1 can be easily and reliably positioned and assembled to the mounting bracket 8 without damaging wires such as a wire harness, and the assembling workability can be further improved. Also, while each locking portion 5 is formed in a wedge shape, a V-shaped insertion groove 8 is formed in each engagement portion 8a.
b, the assembling work in a small space becomes easy,
Also, rattling between the wedge-shaped locking portions 5 of the junction box 1 and the V-shaped insertion grooves 8b of the engaging portions 8a of the mounting bracket 8 is reliably prevented, and wear and vibration of both are reliably prevented. Can be prevented. Further, since the wedge-shaped locking portion 5 is constituted by the inverted triangular prism-shaped projection 5a and the flange 5b protruding outward from the projection 5a, each of the locking portions 5 is formed by the flange 5b located outside the projection 5a. The projection 5a of the locking portion 5 can be securely locked in the V-shaped insertion groove 8b of each engaging portion 8a of the mounting bracket 8, and the flange 5
b prevents the mounting bracket 8 from coming off from each of the engaging portions 8a, so that each of the locking portions 5 does not come off from each of the engaging portions 8a of the mounting bracket 8 at the time of assembling. Can be maintained in a stable state for a long period of time.

Although the junction box is used as the electric junction box according to the above-described embodiment, it is a matter of course that the embodiment can be applied to other electric junction boxes such as a fuse box and a relay box. The fastening means is not limited to the bolt.

[0018]

As described above, according to the electrical junction box mounting structure of the first aspect of the present invention, locking portions are provided on both side surfaces of the electrical junction box, and the locking portions are attached to the mounting bracket. The electric connection box can be easily and reliably positioned and assembled to the mounting bracket without damaging electric wires such as wire harnesses by making it possible to engage and disengage from the upper opening side of each engaging portion provided on both sides. Thus, the assembling workability can be further improved.

According to the mounting structure of the electric junction box of the second aspect of the present invention, each locking portion is formed in a wedge shape, while each engaging portion is provided with a V.
The provision of the V-shaped insertion groove facilitates the assembling work in a small space, and the V-shaped insertion groove of each of the wedge-shaped locking portions of the electrical junction box and each of the engagement portions of the mounting bracket. In this way, it is possible to reliably prevent rattling between the two and to surely prevent wear and vibration of the two.

According to the third aspect of the present invention, the wedge-shaped locking portion is constituted by an inverted triangular prism-shaped projection and a flange projecting outward from the projection.
The projections of the locking portions can be reliably locked in the V-shaped insertion grooves of the engaging portions of the mounting bracket by the flanges located outside the projections of the locking portions. The locking portions are prevented from coming off from the mounting bracket, so that the locking portions do not come off from the engaging portions of the mounting bracket during assembly.

[Brief description of the drawings]

FIG. 1 is a front view showing a junction box and a mounting bracket according to an embodiment of the present invention.

FIG. 2 is a side view of the junction box and a mounting bracket.

FIG. 3 is a side view showing a locked state of the junction box and a mounting bracket.

FIG. 4 is a perspective view of a conventional junction box.

FIG. 5 is a partial perspective view of a conventional junction box and a mounting bracket.

FIG. 6 is a perspective view of another conventional junction box and mounting bracket.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Junction box (electric connection box) 3a, 3a Both sides 5 Locking part 5a Projection 5b Flange 7b Lower mounting bracket (substrate) 8 Mounting bracket 8a Engaging part 8b Insertion groove 9 Bolt (fastening means)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H02G 3/10 B60R 16/02 H02G 3/16

Claims (3)

(57) [Claims] An electric connection box is provided at one end with a locking portion which is engaged with and disengaged from an engaging portion of a mounting bracket, and the other end of the electric connection box is fixedly fastened to a body to be mounted via a fastening means. In the mounting structure of the electric connection box made freely, the locking portions are provided on both side surfaces of the electric connection box, respectively.
The mounting structure for an electric connection box, wherein each of the locking portions is detachable from an upper opening side of each of the engaging portions provided on both sides of the mounting bracket. 2. The mounting structure for an electric junction box according to claim 1, wherein each of the locking portions is formed in a wedge shape, and each of the engaging portions has a V.
A mounting structure for an electric junction box, wherein a letter-shaped insertion groove is provided. 3. The mounting structure for an electrical junction box according to claim 2, wherein the wedge-shaped locking portion is formed by an inverted triangular prism-shaped projection and a flange protruding outward from the projection. Mounting structure for electrical junction box.