JP3178374B2 - 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 an electric junction box for a motor vehicle, and more particularly, to various types of external connection when a wire bundle is guided from a side surface of a lower cover to a required external direction by a gutter-shaped wire guide. It is intended to securely fix the wire bundle having a diameter to a gutter-shaped wire guide.

[0002]

2. Description of the Related Art In an electric junction box for a car made of a synthetic resin of this type, a lower portion of a case 1 accommodating electric components is provided at a lower portion thereof.
As shown in FIG. 8, a box-shaped lower cover 2 is fitted through a fitting step 3, and is engaged and integrated by locking means 4 comprising locking claws and locking frames provided at a plurality of locations on the peripheral walls of both. ing. On one side surface of the lower cover 2, a gutter-shaped electric wire guide 5 for projecting the other end of the electric wire bundle W having one end connected to an electric component in the case to the outside and guiding it in a required direction is integrally provided. Then, the wire bundle W is pushed into the path of the wire guide 5, and the adhesive tape T is wound around the outer periphery of the wire guide 5 so as to waterproof and protect the wire bundle W. Normally, the size (inner diameter) of the gutter-shaped electric wire guide 5 corresponds to the outer diameter of the entire electric wire bundle W, and as shown in FIG. Is inserted so that the upper portion of the wire bundle W is at the same height or slightly higher than the upper end surfaces 6 of the side walls 5a and 5b, the adhesive tape T directly contacts the wire bundle W, and the wire bundle W is guided by the wire guide. 5 is tightly fixed to the inner surface. This is because the wire bundle W is pulled at the time of routing the wire bundle W derived by the wire guide 5 outside the wire guide 5 in a required direction, the wire bundle W is displaced, and the wire length is reduced. This is because management may not be possible. Further, one end of the wire bundle W is connected to an electric component in a case of the electric connection box by a connector or the like,
This is because if the wire bundle W is pulled in a required direction, one end of the wire bundle W may come off from the electric component.

[0003]

Normally, the thickness (outer diameter) of the wire bundle (wire harness W / H) W connected to the electric components in the case of the electric connection box differs depending on the grade of the car or the like. I have. For this reason, in the electric junction box of the above-mentioned conventional configuration, in order to enable the electric wire bundle W to be fixed to the inner surface of the electric wire guide 5, the lower cover 2 having a different size (inner diameter) of the electric wire guide 5 for each vehicle type must be manufactured. Since the electric connection box cannot be shared between different types of vehicles, the cost of the electric connection box has been high.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problem, and enables the wire bundle to be securely fixed to the wire guide even if the diameter of the wire bundle led out from the side wall of the lower cover of the electric connection box is changed. That is the task.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention comprises a case for accommodating an electric component, and a lower cover fitted to a lower portion of the case. An electric connection box formed by projecting a gutter-shaped wire guide for guiding the other end of the wire bundle connected to the component from the wire outlet in a required external direction and leading it out, and tape-wrapping the outer circumference of the gutter-shaped wire guide. In the above, the gutter-like electric wire guide is provided with a partition plate between both opposing side walls, both ends of which are continuous with the inner surface of the side wall, and upper and lower portions of the partition plate are used as wire bundle guide grooves, and the gutter-like electric wire is provided. One side wall of the guide and a part of the one side surface of the partition plate are cut off, and the other end of the wire bundle connected to the electric component in the case from the side of the gutter-shaped wire guide is drawn from the wire outlet. Pull it out and into the guide It provides an electrical junction box that is configured to be capable of passing.

The sizes of the guide grooves above and below the partition plate may be the same or different.

The partition plate may be provided horizontally or slightly inclined between the opposing side walls, and the width (height) of the opposing one and other side walls may be the same or different.

In the electric junction box having the above structure, the gutter-shaped electric wire guide inserts the electric wire bundle into the electric wire bundle guide groove above the partition plate. The electric wire bundle is inserted into the electric wire bundle guide groove below the partition plate. In the three aspects of the second aspect, and the third aspect in which the wire bundle is inserted into the wire bundle guide grooves above and below the partition plate, the wire bundle can be guided in a required direction.
Two or three types of wire bundles having different outer diameters can be inserted into the guide groove (inside the guide) without leaving a large gap. Therefore, two or three types of wire bundles having different outer diameters can be fixed to the wire guide by tape winding each time.

Further, one side wall of the gutter-like electric wire guide and a part of the above-mentioned one side surface of the partition plate are cut off, and a bundle of electric wires connected from the side of the gutter-like electric wire guide to the electric component in the case is formed. Since the other end is pulled out from the wire outlet and inserted into the guide, the work of inserting the wire bundle into the guide becomes easier.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a lower cover of the electric junction box according to the reference embodiment. The configuration of the electric connection box according to the present embodiment other than the lower cover is the same as that of the conventional electric connection box shown in FIG.

The lower cover 20 is provided with an electric wire outlet 21 in which the upper portion of the side surface 20a is cut off in a rectangular shape at an intermediate position in the longitudinal direction of one side surface 20a, and a guide wall is provided from both sides of the electric wire outlet 21 on the side surface 20a. 22a, 22b
Are opposed to each other and project in the direction orthogonal to the side surface 20a, and the partition plate 23 whose both ends are continuous with the inner surface of the wall along the longitudinal direction of the wall at a substantially middle height position of the opposing guide walls 22a and 22b. To form a gutter-like wire guide 25 having wire bundle guide grooves 24a, 24b above and below the partition plate 23.

When the other end of the large-diameter wire bundle W1 whose one end is connected to a case (not shown) taken out from the wire outlet 21 is guided out of the gutter-like wire guide 25 in a required external direction, the lead is first taken out. As shown in FIG. 2A, the wire bundle W1 is divided into both the guide grooves 24a and 24b above and below the partition plate 23 of the gutter-like wire guide 25. Here, the insides of the guide grooves 24a and 24b are both filled with the wire bundles W1-1 and W1-2 without forming a large gap, and the outermost portions of the wire bundles W1-1 and W1-2 are formed by the guide walls 22a. , 22b at the same height or slightly outwardly.

When the adhesive tape T is wound around the outer periphery of the wire guide 25 in this state as shown in FIG. 2B, the wire bundles W1-1 and W1-2 are firmly fixed to the wire guide 25.

When the small-diameter wire bundle W2 taken out from the wire outlet 21 is guided out of the gutter-like wire guide 25 in a required external direction, first, as shown in FIG. The wire bundle W2 is inserted into the guide groove 24a above the 25 partition plates 23. Here, guide groove 2
4a without forming a large gap in the wire bundle W2.
And the outermost part of the wire bundle W2 is the guide wall 22a,
It projects at the same height position as the upper end face of 22b or slightly outward.

In this state, when the adhesive tape T is wound around the outer periphery of the wire guide 25 as shown in FIG. 3B, the wire bundle W2 is firmly fixed to the wire guide 25 on the guide groove 24a side.

Here, the partition plate 23 is connected to the guide wall 2.
2a, 22b are provided at substantially the middle height position, and the guide grooves 2
4a and 24b have the same size. For example, as shown in FIG.
The guide grooves 24a and 24b may have different sizes by providing them at positions near the upper end or the lower end of b. In this case, there are three types of outer bundles: two types of wire bundles having different outer diameters according to the respective sizes of the guide grooves 24a and 24b, and a large diameter wire bundle guiding both the guide grooves 24a and 24b. Wire bundles having different diameters can be fixed to the guide.

FIG. 5 shows a lower cover of the electric junction box according to the embodiment of the present invention. The lower cover 30 is a guide wall 2 of the electric wire guide 25 of the lower cover 20 of the reference embodiment.
2a and a part of the partition plate 23 near the electric wire outlet 21 are cut away.

In the lower cover 30, the wire guide 25
The other end of the bundle of wires connected to the electric components in the case (not shown) is pulled out from the side near the wire outlet 21 through the wire outlet 21 and is inserted into the guide (guide groove 24).
a, 24b). Therefore, the wire bundle can be more easily inserted into the guides (guide grooves 24a, 24b) and fixed than when the lower cover 20 of the above-described reference embodiment is used. In this case, for example, when guiding a large-diameter wire bundle W1, as shown in FIG. 6, the wire bundle W1 not protected by the guide wall in the cutout portion 26.
Is wound around the inner surface of the guide wall 22b with the adhesive tape T, and the wire bundle W1- inserted through the guide grooves 24a and 24b.
1. W1-2 is tightly fixed to the guide grooves 24a, 24b on the inner surface with an adhesive tape T.

FIG. 7 shows a gutter-like electric wire guide of a lower cover according to another embodiment. The gutter-shaped electric wire guide 40 has a reduced width of one of the guide walls 22a and 22b, and the upper end surface 27 and the lower end surface 28 are inclined downward outward. By doing so, the tape can be smoothly guided along the inclined surface of the guide wall, so that the work of winding the adhesive tape around the guide becomes easy, and the tightening force by winding the tape around the wire bundle is effective. It will be transmitted to.

[0020]

As is apparent from the above description, the electric junction box of the present invention is a gutter for guiding a wire bundle connected to an electric component in a case provided on one side surface of a lower cover in a required external direction and leading it out. The electric wire guide has a structure in which electric wire bundles having different outer diameters can be firmly fixed. Therefore, it is possible to share the electric connection box (lower cover) between vehicles of different grades, and it is possible to reduce the cost of the electric connection box.

[Brief description of the drawings]

FIG. 1 is a perspective view of a lower cover in an electric junction box according to a reference embodiment.

FIGS. 2 (A) and 2 (B) are front views for different steps showing a step of inserting and fixing a large-diameter wire bundle into a gutter-shaped wire guide of a lower cover of FIG. 1;

3 (A) and 3 (B) are front views for respective steps showing a step of inserting and fixing a small-diameter wire bundle into a gutter-like wire guide of a lower cover of FIG. 1;

FIG. 4 is a diagram showing a modification of the reference embodiment.

FIG. 5 is a perspective view of a lower cover in the electric junction box according to the embodiment of the present invention.

6 is a perspective view showing a state in which a wire bundle is inserted into and fixed to a gutter-like wire guide of the lower cover of FIG. 5;

FIG. 7 is a perspective view showing a gutter-like electric wire guide of a lower cover according to another embodiment.

FIG. 8 is a perspective view of a conventional electric junction box.

9 is a front view showing a state in which a bundle of electric wires is wound around an electric wire guide of the electric junction box of FIG. 8 with an adhesive tape.

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

Claims (1)

(57) [Claims] 1. A case for accommodating an electric component and a case for the case
A lower cover that is fitted to a lower portion;
Connect the other end of the bundle of wires connected to the electrical components in the case to the side.
Electrical outletGutter that is guided from outside to the required direction
The wire-shaped electric wire guide is protruded, and the
In an electric connection box formed by winding the circumference of the electric connection box, the gutter-shaped electric wire guide has two ends between opposing side walls.
Providing a continuous partition plate on the inner surface of the side wall,
The upper and lower parts are wire bundle guide groovesAnd And on one side wall of the gutter-shaped electric wire guide and the partition plate.
Cut off a part of the side surface, and place it on the side of the
From the other end of the bundle of wires connected to the electrical components in the case
Pull out the above wire outlet and insert it into the guide
It has a configuration that can Electrical junction box.