JP2002002412A - Wire harness cable routing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve vehicle safety by relieving damage of a wire harness during a collision of a vehicle. SOLUTION: In a cable routing structure for engine room main harnesses 11a, 11b cable-routed to a radiator support part 15 along fender parts 17 of both sides from a room into an engine room ER through a dash panel P1, the engine room main harnesses 11a, 11b are cable-routed through a space part 19 constituted between a fender inner 17b and fender outer 17c of both the sides.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring harness wiring structure, and more particularly to an improvement in vehicle safety by reducing damage to the wiring harness during a vehicle collision.

[0002]

2. Description of the Related Art As shown in FIGS. 4 and 5, for example, a wire harness routed to a vehicle is, for example, an engine room main harness 1a, 1b and an engine harness 2 routed in an engine room ER, and a dash panel P1. In addition to the cowl harness 3 routed along the instrument panel harness 4 routed in the instrument panel P2, a floor harness, a rear harness, a roof harness,
It is divided into left and right door harnesses and the like.

[0003] Of the harnesses divided as described above, the engine room main harnesses 1a and 1b are connected to the radiator support portion 5 mounted on the front part of the vehicle by the tire house at the fender portions 6 on both sides of the engine room ER. Are routed along. The engine room main harnesses 1a and 1b are asymmetrical, and one engine room main harness 1a supplies power to devices such as headlamps and horns mounted on the left and right of the radiator support unit 5. Was. For this reason, the engine room main harness 1a was routed so as to cross the radiator support portion 5.

[0004]

Since the conventional engine room main harnesses 1a and 1b are routed as described above, the route routed to the fender portion 6 is cut off when the vehicle receives a side collision. There was a problem that it was easy to be done. Further, in the case of a frontal collision, there is a problem that the radiator support portion 5 is deformed and the engine room main harness 1a crossing this portion is easily cut.

The present invention has been made in view of the above-described problems, and provides a wiring harness wiring structure in which even when an automobile has a side or frontal collision, the wiring harness routed to this portion is hard to be cut. That is the task.

[0006]

In order to solve the above-mentioned problems, the present invention is directed to a radiator support section which extends from a room to an engine room through a dash panel and extends along fenders on both sides of the engine room. In the wiring structure of the engine room main harness routed to the engine room, the engine room main harness is routed through a space formed between the fender inner and the fender outer on both sides. It provides a wiring harness routing structure.

[0007] According to the above configuration, since the wiring route of the fender portion in the engine room main harness is a space formed between the fender inner and the fender outer, when the body is deformed due to a side collision. In this case, the impact is absorbed, and the breaking of the wire harness can be prevented.

It is preferable that the engine room main harness is symmetrically routed from both sides with respect to the radiator support, and a central region of the radiator support is a divided region where the engine room main harness is not routed. In this way, even if the radiator support is crushed inward due to a head-on collision, the wire harness is not routed in the central region in a transverse direction, so that the wire harness can be prevented from being cut.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a wiring harness wiring structure according to an embodiment of the present invention.
R, dash panel P1, instrument panel P2
The part to be divided and routed is shown. In the engine room ER, the engine room main harness 11 is connected to the junction boxes 10a and 10b on both sides arranged in the room, and is introduced into the engine room ER from both sides through the dash panel P1.
a, 11b are routed. On the other hand, an instrument panel harness 14 that is routed along the instrument panel P2 so as to connect the junction boxes 10a and 10b is arranged on the indoor side.

[0010] The engine room main harness 11a, 1
1b is introduced into the front radiator support section 15 via the fender sections 17 on both sides. In the fender section 17, the engine room main harness 11a,
11b is routed through a protection path as shown in FIG. That is, through the inside of the space 19 formed between the fender apron 17a that partitions between the tire house 18 and the fender inner 17b that forms the inner wall of the engine room ER, and the fender outer 17c that forms the outer wall of the body. I try to route it. Thereby, even if the fender part 17 is deformed by the side collision,
Engine room main harness 11a in the space 19,
11b is less likely to be directly affected by this, thereby preventing the wire harness from being divided.

The engine room main harnesses 11a and 11b introduced into the radiator support section 15 are:
The terminals are symmetrically introduced from both sides to the left and right device mounting portions 20a and 20b which can be connected to electrical components such as left and right headlamps and horns. By arranging in this manner, a divided area 21 where the wire harness is not arranged is set in the central area of the radiator support portion 15.

Further, one engine room main harness 11a is connected to the engine E, the relay box 22, and the battery 23 by a branch path 11a-1 branching on the way.
And so on.

[0013]

As is clear from the above description, in the wiring harness routing structure according to the present invention, the main harness routed on both sides in the engine room is provided in the space between the fender inner and the fender outer. Since the wire harness is routed through, the protection performance of the wire harness at the time of a side collision of the vehicle can be improved, and the breakage of the wire harness can be prevented. In addition, since a divided area where the wire harness is not routed is provided at the center of the radiator support, it is possible to prevent the wire harness routed to the radiator support from being stretched and cut by a frontal collision of the vehicle.

[Brief description of the drawings]

FIG. 1 is a perspective view of the inside of an engine room showing a wiring structure of a wire harness according to the present invention.

FIG. 2 is a cross-sectional view of a fender section.

FIG. 3 is a diagram illustrating a wiring route of a wire harness.

4A is a diagram showing a conventional wiring structure in an engine room, and FIG. 4B is a diagram showing a conventional wiring route.

FIG. 5 is a diagram showing a wiring state of a wire harness to a conventional dash panel and instrument panel.

[Explanation of symbols]

 ER engine room P1 dash panel P2 instrument panel 11a, 11b engine room main harness 17 fender 17b fender inner 17c fender outer 19 space 21 space 21

Claims (2)

[Claims] 1. A wiring structure for an engine room main harness, which extends from a room to an engine room through a dash panel and is routed to a radiator support portion along fender portions on both sides of the engine room, wherein the engine room main harness is provided. , Through a space formed between the fender inner and the fender outer on both sides. 2. The engine room main harness,
2. The wiring harness routing structure according to claim 1, wherein the radiator support is symmetrically routed from both sides, and a central region of the radiator support is a divided region where an engine room main harness is not routed. 3.