JPH11105643A - Engine room harness wiring structure - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a harness wiring structure for an engine room that can improve the security of a brake tube connected to an ABS actuator and improve the workability of wiring. SOLUTION: A harness 7 pulled out from an electronic component 6 in a cowl box 9 to the front side of the cowl box 9 is fixed to the top of a nearby strut tower 10 and routed downward along the strut tower 10. At the same time, by laying over the transmission case 2A of the transmission 2 from the lower side of the strut tower 10, it is possible to prevent the harness 7 from interfering with the brake tube 5 of the ABS actuator 4, and to secure the brake tube 5. The workability can be improved and the workability of harness wiring can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to automobiles,
The present invention relates to a harness wiring structure for an engine room of a front engine / front drive type vehicle (F / F type vehicle).

[0002]

2. Description of the Related Art FIGS. 5 and 6 show an engine room ER of an FF type vehicle. An engine assembly including an engine body 1 and a transmission 2 is connected to an engine room E.R. It is mounted horizontally in R.

In a vehicle with a right-hand drive, a brake master bag (not shown) is disposed on the right side of the dash panel 8, that is, on the side on which the engine body 1 is disposed, so as to protrude toward the engine room ER. I have.

[0004] An intake manifold 3 is disposed on the rear side of the engine body 1. The intake manifold 3 is close to the dash panel 8 and, as described above, the right side of the dash panel 8. Since the brake master back is protrudingly arranged and there is not much room in space, the ABS actuator 4 provided in the brake system in relation to the brake master back is located on the left side of the dash panel 8, ie, the arrangement of the transmission 2. The brake tube 5 is disposed on the side surrounded by the dash panel 8 and the strut tower 10 on the left side, and the brake tube 5 connected to the upper surface of the ABS actuator 4 is connected to the brake master back.

On the other hand, the electronic components 6 for controlling the engine are protected from heat and splashes in the engine compartments E and R by a cowl box 9 above the dash panel 8.
In this case, the electronic component 6 is stored and arranged in the cowl box 9 on the side of the transmission 2 where there is a relatively large space in consideration of harness wiring. is there.

Then, the harness 7 connected to the electronic component 6 is pulled out to the front side of the cowl box 9 and extended toward the engine body 1 along the front side of the cowl box 9. One of the branch portions 7 a is connected to the intake manifold 3. And the other branch portion 7b is connected to various electric components (not shown) disposed in front of the engine assembly.

In FIG. 6, 16 is a front side member, 1
8 is a tube bracket fixed to the front side member 16 and holding the clutch hose 17, 19 is a canister fixed to the strut tower 10, 19a, 19
b indicates a vapor hose and a drain hose of the canister 19.

This similar structure is disclosed, for example, in Japanese Patent Laid-Open No. 7-228.
No. 268.

[0009]

When the harness 7 is extended from the front drawer portion of the cowl box 9 along the front side of the cowl box 9 toward the side opposite to the side on which the electronic components 6 are arranged, the harness 7 is provided. 7 extends over the brake tube 5 connected to the upper surface of the ABS actuator 4.

The harness 7 is protected by covering the outer peripheral surface thereof with a bellows-like protector 11 made of synthetic resin having a relatively high hardness. Therefore, as described above, this harness 7 is a brake tube which is an important security part. When the cable is straddled above the harness 7, a portion of the harness 7 straddling the brake tube 5 is connected to a harness clamp so as to prevent the harness 7 from hanging down and damaging the brake tube 5 by a relatively hard protector 11 on the outer periphery thereof. It is necessary to secure the wiring height from the brake tube 5 by securing it to the front side surface of the cowl box 9 at 15 and not to make the harness 7 slack.
It is unavoidable that high mounting accuracy is required for the wiring of the cables, and that it is necessary to perform sufficient mounting work management, which deteriorates the wiring workability.

On the engine body 1 side, a harness 7 is an EGR pipe 1 which is a high heat source piped to the engine body 1.
2 and the upper side of the heater pipe 13 and the heater hose 14, which is disadvantageous in heat protection of the harness 7.

In view of the above, the present invention allows the harness to be routed without interfering with the brake tube connected to the ABS actuator, thereby improving safety. An object of the present invention is to provide a harness wiring structure of an engine room that can be wired without receiving the harness.

[0013]

According to the first aspect of the present invention, an engine assembly including an engine body and a transmission is mounted horizontally in an engine room, while a dash panel and a strut tower are mounted on the transmission arrangement side. An ABS actuator is arranged on the enclosed side, and electronic components are stored on the side of the cowl box above the dash panel on the side where the ABS actuator is arranged, and a harness connected to the electronic components is placed on the front side of the cowl box. In the structure in which the harness is drawn out and connected to the electrical components on the engine assembly side, the harness drawn out to the front side of the cowl box is fixed to the top of the strut tower close to the harness draw-out portion, and along the strut tower. After laying it down And routed fixed from the lower portion of the tower across the transmission case of the transmission, is characterized in that connecting the other end of the harness to electrical components of the engine assembly side.

According to a second aspect of the present invention, the harness extending from the fixed portion on the transmission case of the transmission according to the first aspect to the engine body side is provided below the EGR pipe and the heater pipe provided in the engine body. It is characterized by being routed.

According to a third aspect of the present invention, a harness extending from the fixed portion on the transmission case of the transmission according to the second aspect to the engine body side is arranged to pass below the intake manifold at the rear side of the engine body. It is characterized by being searched.

[0016]

According to the first aspect of the present invention, the harness pulled out to the front side of the cowl box is fixed to the top of the strut tower near the harness draw-out portion, and is routed downward along the strut tower. The harness is connected to the transmission case from the lower part of the strut tower.
It does not straddle over the brake tube connected to the upper surface of the actuator, so that the security of the brake tube can be improved and the harness wiring workability can be significantly improved.

According to the second aspect of the present invention, in addition to the effect of the first aspect, a harness extending from the fixed portion on the transmission case toward the engine body is provided below the EGR pipe and the heater pipe which are piped to the engine body. In this case, the harness can be less affected by the heat of these high heat source pipes, and can be advantageously routed in terms of thermal measures.

According to the third aspect of the invention, in addition to the effect of the second aspect, a harness extending from the fixed portion on the transmission case toward the engine body is passed under the intake manifold at the rear side of the engine body. The harness can be routed with a sufficient amount of space by effectively utilizing the space below the intake manifold and avoiding interference of the harness with other functional parts in the engine room. Can be further improved, and wiring can be advantageously carried out as a measure against heat.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings, in which the same reference numerals are assigned to the same parts as in the above-mentioned conventional configuration.

FIGS. 1 to 4 show an FF type vehicle of a right-hand drive type. An engine assembly including an engine body 1 and a transmission 2 is provided in an engine room E.
It is mounted horizontally in the R via an unillustrated engine mount.

An EGR pipe 12 is provided on the upper side of the transmission 2 side of the engine body 1 so as to extend from an exhaust manifold (not shown) to an intake manifold 3 disposed on the rear upper portion of the engine body 1. Together with the EG
A heater pipe 13 is provided near the lower side of the R pipe 12.

A heater hose 14 connected to the heater pipe 13 penetrates through the dash panel 8 and is connected to a heater core of an air conditioning unit (not shown) mounted in the vehicle interior.

The ABS actuator 4 incorporated in the brake system is disposed on the left side of the transmission 2 on the side where the dash panel 8 and the strut tower 10 are arranged, and is connected to the upper surface of the ABS actuator 4. The brake tube 5 is piped toward the right side along the dash panel 8, and is disposed on the right side of the dash panel 8 so as to protrude toward the engine room E / R. Connected to

The electronic components 6 for engine control are stored and arranged in the cowl box 9 on the left side of the transmission 2 where there is a relatively large space for wiring the harness. Protected from heat and splash.

The harness 7 connected to the electronic component 6 and drawn out to the front side of the cowl box 9 is fixed to the top of the left strut tower 10 close to the harness draw-out portion by a harness clamp 15, and the strut is drawn from the top. It is routed downward along the tower 10 and is fixed to the lower portion of the strut tower 10 with a harness clamp 15 and is attached to the shoulder of a tube bracket 18 for a clutch hose 17 fixed to the front side member 16. The tube bracket 1 is fixed with a harness clamp 15 and
8 from the fixed part on the transmission case 2A of the transmission 2
The upper part is fixed by a harness clamp 15.

The harness 7 extending from the fixed portion on the transmission case 2A to the engine body 1 side includes branch portions 7a, 7a.
b, and these branch portions 7a and 7b are all arranged below the EGR pipe 12, the heater pipe 13 and the heater hose 14, and one of the branch portions 7a
Is connected to an electric component such as a fuel injection valve (not shown) disposed in the intake manifold 3 through the lower part of the intake manifold 3, and the other branch portion 7b is provided with various electric components (not shown) disposed in front of the engine assembly. Connected to parts.

According to the structure of the above embodiment, the harness 7 connected to the electronic component 6 housed and arranged in the left side portion of the cowl box 9 and drawn out to the front side of the cowl box 9 is provided.
Is fixed to the top of the strut tower 10 on the left side near the harness drawer, is routed downward along the strut tower 10, and transmits the transmission 2 from the lower side of the strut tower 10. Since the wiring is laid over the case 2A, the harness 7 does not cross over the brake tube 5 connected to the upper surface of the ABS actuator 4, so that the security of the brake tube 5 can be improved. At the same time, since the wiring of the harness can be performed without paying attention to the brake tube 5, the workability of the wiring of the harness 7 can be significantly improved.

The branch portions 7a and 7b of the harness 7 extending from the fixed portion of the transmission case 2A toward the engine body 1 are all EGR pipes 12 and heater pipes 1.
3 and below the heater hose 14,
The branch portions 7a and 7b can be less affected by the heat of these high heat source pipes, and the harness 7 can be advantageously routed for heat control.

Moreover, the one branch portion 7a extending to the electric component on the intake manifold 3 side is routed under the intake manifold 3, so that the space below the intake manifold 3 can be effectively used and the branch portion 7a can be used. Part 7a
Can be routed with sufficient space by avoiding interference with other functional parts in the engine room, and the workability of wiring the harness 7 can be further improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a plan view of the embodiment.

FIG. 3 is a side view of the embodiment.

FIG. 4 is an exemplary perspective view showing a harness arrangement state around the strut tower according to the embodiment;

FIG. 5 is a plan view showing a conventional structure.

FIG. 6 is a perspective view of the conventional structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Engine body 2 Transmission 2A Transmission case 3 Intake manifold 4 ABS actuator 5 Brake tube 6 Electronic components 7 Harness 8 Dash panel 9 Cowling box 10 Strut tower 12 EGR pipe 13 Heater pipe

Claims (3)

[Claims] 1. An engine assembly comprising an engine body and a transmission is mounted horizontally in an engine room, while an ABS actuator is arranged on a side surrounded by a dash panel and a strut tower on a transmission arrangement side, and The electronic components are stored in the cowl box on the upper side of the dash panel on the side where the ABS actuator is disposed, and the harness connected to the electronic components is drawn out to the front side of the cowl box and connected to the electrical components on the engine assembly side. In the structure, the harness pulled out to the front side of the cowl box is fixed to the top of the strut tower close to the harness draw-out portion, and is routed downward along the strut tower. Check the transmission A harness wiring structure for an engine room, wherein the wiring harness is connected and fixed on a vehicle case, and the other end of the harness is connected to an electrical component on the engine assembly side. 2. The harness according to claim 1, wherein a harness extending from a fixed portion on a transmission case of the transmission toward the engine body is arranged below an EGR pipe and a heater pipe provided in the engine body. Harness routing structure for engine room. 3. The engine according to claim 2, wherein a harness extending from the fixed portion on the transmission case of the transmission to the engine body side is routed under the intake manifold at the rear side of the engine body. Room harness routing structure.