JP3606090B2 - Automotive wiring structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wiring structure of an automobile, and in particular, a floor harness that easily suppresses an increase in the length of another electric wire while shortening an ASL line through which a current always flows and that is likely to occur at the time of a side collision. This is intended to prevent damage from occurring.
[0002]
[Prior art]
Conventionally, as shown in FIG. 3, generally, as shown in FIG. 3, an ASL line (so-called live power supply line) 1 in which a current is constantly flowing in an automobile includes an engine-side junction box 2 mounted at a front left position of an engine room X of the automobile. In order to connect the indoor side junction box 3 mounted on the right side of the driver's seat side on the indoor side Y, the engine side junction box 2 is made to cross the substantially entire length of the engine room X, and then refracted backwards. The vehicle is extended in the vehicle length direction in the engine room X, and then pulled out into the room Y through a through hole 5 provided in the vehicle body panel 4 that partitions the engine room X and the room Y, and is connected to the indoor junction box 3.
[0003]
The indoor junction box 3 is mounted on the right side near the driver's seat because the electrical components 6A, 6B... And the switches 7A, 7B. This is because it is desired to shorten the length of the electric wire w from the inner branch circuit to these electrical components and switches.
[0004]
However, with the above arrangement, the length of the ASL line 1 through which current always flows is very long. Since a current always flows through the ASL line, there is a high possibility that a short circuit occurs due to an external interference material or the like. For this reason, the ASL line is protected by a protector, etc., but since the total length of the ASL line is large, it is expensive to protect the entire ASL line with the protector, and various types of equipment are centrally arranged. There is a problem of taking up space in room X.
[0005]
Further, as shown in FIG. 3, the floor harness 8 connected to the indoor junction box 3 disposed in the vicinity of the driver's seat is disposed along the right side surface of the automobile, and the FUEL pump 9 and the rear combination lamp 10 are disposed. Will be connected. Thus, when the floor harness 8 is disposed along the right side surface of the automobile, there is a problem that the floor harness 8 is likely to be damaged due to side contact or side collision of the automobile. If the circuit to the drive source of the FUEL pump 9 is cut off, the floor harness 8 may not be able to travel.
[0006]
In order to solve the above-mentioned problem that the ASL line becomes long, as shown in FIG. 4, as shown in FIG. An inner junction box 3 is connected in a straight line in the vehicle length direction and the ASL line 1 is shortest. In this case, the through hole 5 provided in the vehicle body panel 4 is formed on the left side, and the ASL line has the shortest straight line length along with the other wire harness through the through hole 5.
[0007]
[Problems to be solved by the invention]
However, when the indoor junction box 3 is disposed on the passenger seat side, the electrical components 6A, 6B,... And the switches 7A, 7B,. The length of the electric wire w connecting the branch circuit in the indoor junction box 3 and these electrical components and switches increases, and this causes an increase in cost.
[0008]
Also, since the floor harness is routed along the left side of the vehicle on the opposite side to the case where the indoor junction box 3 is arranged on the driver's seat side, the floor harness is caused by side contact or side collision of the vehicle. The problem of being easily damaged is not solved.
[0009]
The present invention has been made in view of the above problems, and it is an object to increase the safety of a floor harness without shortening the length of other electric wires while shortening the ASL line.
[0010]
[Means for Solving the Problems]
To solve the above problems, the present invention provides a junction box to be mounted on an automobile, and one engine-side junction box to be mounted on one of left and right side of d Njinrumu are mounted only in a central portion in the width direction of the indoor side comprising two junction box consisting of a single indoor junction box,
From the engine side junction box to the indoor side, it is routed in a straight line in the vehicle length direction, pulled out to the indoor side through the through holes provided on the left and right sides of the vehicle body panel that partitions the engine room and the room, and then bent An ASL line (raw power line) connected to the indoor junction box mounted in the center on the indoor side, and a branch circuit is accommodated inside the indoor junction box, and the electrical equipment is disposed near the branch circuit and the driver's seat Products and switches via wires,
Furthermore, a floor harness that passes through the center in the width direction of the vehicle is connected to the indoor junction box, the floor harness includes a branch line that connects to the FUEL pump, and the rear end is branched to connect to a combination lamp. The automobile wiring structure is provided.
[0011]
With the above configuration, the ASL line can be significantly shortened compared to the case where an indoor junction box is placed in the driver's seat, interference from external interference materials with the ASL line can be reduced, and the protector attached to the ASL line can be downsized. it can. On the other hand, the ASL line is slightly longer than the case where the indoor junction box is arranged on the passenger seat side, but the length of the electric wires to the electrical components and switches near the driver seat can be greatly shortened. In particular, the length of electric wires from the driver's seat to the electrical components and switches from the center can be made very short.
[0012]
Furthermore, since the indoor junction box is arranged in the center, the floor harness connected to the junction box is routed along the center in the vehicle width direction, and is not laterally routed as in the prior art. Damage due to contact and side collision can be almost eliminated.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, an engine-side junction box 2 is mounted on the left front side of an engine room X of the automobile, while in the center in the width direction of the room Y, that is, in the instrument panel 20 shown in FIG. An indoor junction box 3 is mounted at a substantially central portion in the vehicle width direction.
[0014]
The ASL line 1 that is connected to the engine side junction box 2 and the indoor side junction box 3 and that is always carrying current is routed linearly in the vehicle length direction from the engine side junction box 2 to the indoor side. It pulls out to the room T side through the through hole 5 provided on the left side of the vehicle body panel 4 that partitions the room X and the room Y, and then bends and is mounted in the center of the room side and accommodated in the center of the instrument panel 20 doing.
[0015]
Branch circuits (not shown) are accommodated inside the indoor junction box 3 and wires w are connected to connect the branch circuits to electrical components and switches arranged near the driver's seat indicated by the handle 15. doing. Schematically, as shown in FIG. 1, switches 7A and 7B disposed on the side of the window further than the handle 15, the electrical component 6B in front of the driver's seat, the indoor junction box 3 and the electrical component 6A disposed on the rear side. Is connected via an electric wire w. Therefore, the length of the electric wire w to these switches and electrical components is very short compared to the case where the junction box is arranged on the passenger seat side.
[0016]
In particular, at the center in the vehicle width direction, as shown in detail in FIG. 2, an A / D computer 40, an engine control computer 41, a mirror control relay 42, an air mix amplifier 43, a door control relay 44, an absorber control computer 45, A number of electrical components such as a circuit opening relay 46, a shift lock control relay 47, and an air conditioner amplifier 48 are located. Therefore, in order to be close to the indoor junction box 3 disposed in the center, the length of the numerous wires w Can be shortened.
[0017]
Furthermore, a floor harness 8 routed to the rear side of the automobile is connected to the indoor junction box 3, and the floor harness 8 is routed to the rear side along the center in the vehicle width direction. This floor harness 8 is provided with a branch line 8a to the FUEL pump 9 in the same manner as in the prior art, branching left and right at the rear end, and a combination lamp 10 connected to the ends of the left and right branch lines 8b and 8c, respectively. Yes.
[0018]
If it is the said structure, compared with the case where the ASL line 1 has arrange | positioned the indoor junction box 3 in the driver's seat side, it can shorten significantly. Since this ASL line 1 is provided with a protector (not shown) of a resin molded product as a protective material, if the ASL line 1 can be shortened, the protector is also downsized. And since it can be routed into the room Y by the same route as when the junction box 3 is arranged on the passenger seat side, the through hole 5 provided in the vehicle body panel 4 that separates the engine room X and the room Y is used. It can be pulled out to the room Y side, and there is no need to make a significant change from the conventional one.
[0019]
Furthermore, it is possible to shorten the electric wires from the junction box 3 to a large number of electrical components that are concentrated in the vicinity of the driver's seat, particularly in the center of the vehicle width, thereby simplifying the routing route and reducing the electric wire cost.
[0020]
Furthermore, since the floor harness 8 is routed to the rear side along the center in the vehicle width direction, damage to the floor harness 8 due to side contact or side collision can be almost eliminated. As a result, there is no fear of running stop due to the stop of energization of the FUEL pump 8 connected to the floor harness 8 and the possibility of turning off the rear lamp, and the safety of the automobile can be improved.
[0021]
【The invention's effect】
As is clear from the above description, according to the present invention, the ASL line that is connected to the engine room side junction box and the indoor side junction box and through which current always flows can be shortened. The length of the wires connected to electrical components and switches can also be shortened. Furthermore, since the floor harness can be routed along a substantially central portion in the vehicle width direction, the influence of the floor harness on side contact and side collision can be reduced.
[Brief description of the drawings]
FIG. 1 is a schematic view showing an embodiment of the present invention.
FIG. 2 is a partially enlarged perspective view of the embodiment.
FIG. 3 is a schematic view showing a conventional example.
FIG. 4 is a schematic view showing another conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ASL line 2 Engine side junction box 3 Indoor side junction box 4 Car body panel 5 Through-hole 6A, 6B Electrical component 7A, 7B Switch 8 Floor harness 9 FUEL pump 10 Combination lamp

Claims (1)

As junction box to be mounted on an automobile, one to be mounted on one of left and right side of d Njinrumu the engine side the junction box, the one which is mounted only in the central portion in the width direction of the indoor side indoor junction box and two consisting of With junction box ,
From the engine side junction box to the indoor side, it is routed in a straight line in the vehicle length direction, pulled out to the indoor side through the through holes provided on the left and right sides of the vehicle body panel that partitions the engine room and the room, and then bent An ASL line (raw power line) connected to the indoor junction box mounted in the center on the indoor side, and a branch circuit is accommodated inside the indoor junction box, and the electrical equipment is disposed near the branch circuit and the driver's seat Products and switches via wires,
Furthermore, a floor harness that passes through the center in the width direction of the vehicle is connected to the indoor junction box, the floor harness includes a branch line that connects to the FUEL pump, and the rear end is branched to connect to a combination lamp. automotive wiring structure are.

Images