JP3139331B2 - Wire harness - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring harness for an automobile, and more particularly to a very long and large wiring harness such as an engine room main wiring harness in a van type vehicle. is there.

[0002]

2. Description of the Related Art Conventionally, among wire harnesses routed in a car, a main wire harness is long and recently, the amount of electric wires to be bound increases due to an increase in electric components mounted on the car. The number of components such as connectors to be connected to these electric wires is increasing, and the size is very large. For example, FIG.
The T-shaped engine room of the van type car shown in FIG.
The main wire harness W / H-1 has a wire length of 3 to
It is almost 4m. In the passenger car shown in (B),
A main wire harness W / H-2 for wiring along the front, left and right sides and rear in the vehicle interior, and a main wire harness W / H-3 for routing to the engine room side;
W / H-4 and the like are also very long and large.

[0003] The wiring harness includes the above-mentioned main wiring harness, wiring required wires to which connectors and the like are preliminarily connected on the wiring diagram board, winding the tape, and fixing the protector and the vehicle body to required positions. And the like.

[0004]

As described above, when the amount of electric wires of the main wiring harness increases and the size of the main wiring harness increases,
Wiring work cannot be easily performed during the manufacture of wire harnesses. In other words, the task of laying a group of wires having a length of 3 to 4 m and having a large weight from one end side to the other end while pulling the heavy wire group is heavy labor.

Further, when a large wire harness having a long length and an increased weight is routed to a vehicle as described above, it is not necessary to route the wire harness along a required route of the vehicle body and fix the wire harness to the vehicle body. There is a problem that requires effort.

[0006] In the above problem, when the main wire harness is divided, the length and weight of each wire harness can be reduced, but in this case, the electrical connection of the divided wire harnesses becomes a problem. For example, when a connector is attached to each of the divided wire harnesses and these connectors are fitted to each other for electrical connection, a means for holding and fixing the connector and a space for arranging the connector are required.

Conventionally, a wire harness is provided with a protector for protection and fixing to a vehicle body. As shown in FIGS. 14A and 14B, a conventional protector is provided.
A fixed bellows 5 is protruded from the opening end, and a wire harness W / H is wound around the fixed belly 5 with a tape 6 and fixed, and a function of holding an electric connection means such as a connector outside the protector 3. Is not provided. Therefore,
As described above, even if the main wire harness is divided and the divided wire harnesses are electrically connected via the connector, the connector cannot be held by the conventional protector.

It is also conceivable to provide a locking portion for an electric connection means such as a connector inside the protector and to house and hold it inside the protector. In this case, however, it cannot be adopted when the internal volume of the protector is small. Furthermore, the position of the electric connection means is fixed and cannot be adopted when it is desired to be shared by a right-hand drive vehicle and a left-hand drive vehicle, and a dedicated protector must be provided for each.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and divides a long and heavy main wire harness so as to reduce the length and weight of the main wire harness. In addition to facilitating the splitting, the electric connection means of the divided wire harness
It is intended to be able to be fixed outside the protector.

[0010]

That is, the present invention provides a first method.
The T-shaped long and large main wire harness routed in the automobile is divided into a first horizontal wire harness and a second vertical wire harness, and the T-shape is located at the split position. Of the second divided wire harness, the trunk line of the second divided wire harness is inserted into the vertical frame portion of the protector, and the distal end thereof is branched laterally. The first divided wire harness in the horizontal direction is passed through the horizontal frame portion of the protector while the connector is connected to each of the connectors at positions protruding from both ends of the horizontal frame portion. A branch line to be connected to the second split wire harness is branched at a position protruding from both ends of the first split wire harness, a connector is connected to a tip of the branch line, and a connector at a branch terminal of the first split wire harness and a second split wire And a connector of the branch line terminal of the harness,
A wire harness is provided in which the protectors are fitted and connected at positions protruding from both ends of the horizontal frame portion.

According to the present invention, secondly, a long and large main wire harness having a T-shaped branch portion arranged in a vehicle is divided before or after a position where the main wire harness is branched into a T shape. The first divided wire harness on the front side or the rear side is divided into a second divided wire harness having a T-shaped branch portion, and the T-shaped branch portion of the second divided wire harness is passed through a T-shaped protector. A split end with the first split wire harness is located at a position protruding from one end opening of the horizontal frame portion of the protector, and connected to the first split wire harness with a connector. A wire harness is provided, wherein the wire harness is fixed to a tape fixing portion provided at the outlet opening through a lateral portion of the main wire harness from the other end opening.

Third, the present invention divides a long and large main wire harness having a T-shaped branch portion routed in an automobile on both lateral sides of a T-branch portion. The divided wire harness having the divided T-branch portion is passed through a T-shaped protector, and the divided wire harness is connected to the T-shaped protector with a connector at both ends of the horizontal frame portion. And a wire harness characterized by the following.

[0013] A fixing holder is provided at an opening position of the horizontal frame portion of the protector, and the connector is fixed by the fixing holder. Instead of the above connector, a relay box,
The connection may be made through an electric connection means including a fuse box, a joint box, or a junction box.

The fixed holder may be plate-shaped and may be integrated with or separate from the protector, and the separate fixed holder may be configured to be detachably fixed to the protector.

In the above protector, fixing holders are provided at both left and right opening ends of the protector, an electric connection box is fixed to one fixing holder, and a wire harness is fixed to the other fixing holder by tape winding. It is preferable that the vehicle can be shared by right-hand drive vehicles and left-hand drive vehicles.

[0016]

In the wire harness of the present invention, since the long and heavy main wire harness is divided, each divided wire harness is short and lightweight, and is easy to handle during manufacturing and wiring. In addition, since the wiring harness is divided at the position where the conventional protector is attached, and the connectors are respectively connected to the divided wire harnesses, the connectors are detachably fitted to each other so that the wiring harness is divided by the division. Electrical connection can be achieved. Further, since the electric connection means is fixed by the protector, there is no need to provide a separate fixing means.

The divided wire harnesses can be connected by a relay box, a fuse box, a joint box, a junction box or the like in addition to the connector according to the circuit configuration, so that the degree of freedom of the circuit configuration can be increased as compared with the related art. Furthermore, since the electric connection means is detachably fixed to the outside of the protector, any size can be used without being restricted by the size of the protector.

In the present invention, the T-shaped and H-shaped wire harness
Conventionally, a protector is attached to a bent portion such as a letter, an L-shape, and a cross to protect and maintain a bent state, and is fixed to a vehicle body. It is most rational to hold the electrical connection means provided and attached to the divided part by the protector.

Further, when the protector is used, the connector can be fixed with a single touch to a fixing holder protruding outside the opening end of the protector. In addition, since the connector is arranged and fixed outside the protector, the size of the electric connection means is not restricted. Further, since the mounting is performed outside the protector, the mounting operation is easy.

Since the fixing holder has a plate-like shape and has a simple shape in which a lock hole is provided, it can be easily implemented. Further, since the lock hole is different from the conventional fixed spatula, a wire harness can be wound around the fixed holder on the opening side of the protector to which the connector is not attached and used for fixing the wire harness.

When fixed holders are provided on both sides in the left-right direction of the protector, for example, in a right-hand drive vehicle, the connector is fixed to the right fixed holder, and the wire harness is fixed to the left fixed holder by tape winding. In a left-hand drive vehicle, the wire harness can be fixed to the right fixing holder, and the connector can be fixed to the left fixing holder. Therefore, the vehicle can be used commonly for right-hand drive vehicles and left-hand drive vehicles.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. FIGS. 1 and 2 show a first embodiment, in which an engine room main wire harness formed in a T-shape of a van type vehicle is shown by a solid line in FIG. 10 and a second divided wire harness 11 in the vertical direction indicated by a dotted line in FIG. Conventionally, the divided engine room main wire harness is located at a position where the first divided wire harness 10 and the second divided wire harness 11 are divided.
In the present invention, the divided portion of the first divided wire harness 10 and the second divided wire harness 11 is inserted through the T-type protector 12, as shown in FIG.

By dividing the conventionally connected wire harness, the first and second divided wire harnesses 10, 1
Therefore, the first connectors 13 and 14 are connected to the first divided wire harness 10 and the second connector 1 is connected to the second divided wire harness 11.
5 and 16 are connected.

The second divided wire harness 11 has a trunk 11a inserted into a vertical frame portion 12a of a T-type protector 12,
Branched in the lateral direction at the tip, the branched branch lines 11b, 1
1c is inserted into the horizontal frame 12b of the T-type protector 12, and the second connectors 15 and 16 are connected to positions protruding from both ends of the horizontal frame 12b. On the other hand, the first split wire harness 11 is inserted through the horizontal frame portion 12b of the T-type protector 12, and branch lines 10a and 10b are provided at positions protruding from both ends of the horizontal frame portion 12b.
b, the first connectors 13 and 14 are connected.

As described above, the divided portions of the divided wire harnesses 10 and 11 are inserted through the T-type protector 12.
Two wire harnesses of a first divided wire harness 10 and a second divided wire harness 11 are inserted through the horizontal frame portion 12b.

As shown in FIG. 2, the T-type protector 12 includes a T-shaped lower cover 20 and an upper cover 21, each of which has a U-shaped cross section. We are trying to close it. The lower cover 20 and the upper cover
The lock claw and the lock groove (not shown) formed respectively are locked and detachably fixed. In addition, you may fix by tape winding.

As shown in FIGS. 2 and 3, the lower cover 20 has left and right open ends 20c, 2c of the horizontal frame portion 20b.
0d, plate-like fixed holders 20e and 20f from one side wall.
Projecting outward. These fixed holders 2
0e and 20f have lock holes 20g, 2
0h is drilled. On the other hand, the first connectors 13, 1
4 is formed with lock claws 13a and 14a which are locked in the lock holes 20g and 20h, respectively. Also, the lower cover 20
A bracket 20i for fixing the vehicle body is protruded from an outer surface of the bracket, and a screw hole 20j is provided in the bracket 20i.

One fixed holder 20 of the lower cover 20
e, the second connector 1 of the second split wire harness 11
The first connector 13 of the first split wire harness 10 fitted with 5 is locked and fixed and held outside the left open end of the lower cover 20. Similarly, the other fixed holder 2
0f to the second connector 16 of the second divided wire harness 11
The first connector 14 of the first split wire harness 10 is locked and fixed to the outside of the right opening end of the lower cover 20. As described above, after locking and fixing, the tape may be further held in a fixing holder by tape winding.

As described above, the first and second divided wire harnesses 10 and 11 are inserted through the lower cover 20 and
After the connector is fixed to the outside of the opening at both ends, the upper cover 21 is attached.

When the protector 12 having the divided wire harnesses 10 and 11 inserted therein is fixed to the vehicle body on an automobile assembly line, the protector 12 is fixed to the vehicle body through screws in screw holes 20j of a bracket 20i provided in the lower cover 10.

Although the fixed holders 20e and 20f are integrally formed with the lower cover 20, a plate-shaped fixed holder 30 is separately provided as shown in FIG. 4 and attached to the lower cover 20 with screws 31 as required. You may.

FIGS. 5 to 7 show a second embodiment.
In the embodiment, as shown in FIG. 5, the engine room main wire harness is divided into three parts at a portion where the T-type protector 12 is mounted. That is, it is divided into three parts: a first divided wire harness 10 ′ on the left side in the front side, a second divided wire harness 11 ′ in the front and rear direction, and a third divided wire harness 10 ″ on the right side in the front side. The third divided wire harness is inserted into the T-type protector 12 through a second divided wire harness 11 ′ in the front-rear direction, and the third divided wire harness 11 ′ is connected to the horizontal frame portion 12.
The wire is branched into two parts at b, and inserted into both the left and right sides. The left open end is connected to the first split wire harness 10 'by a connector, and the right open end is connected to the third split wire harness 10 "by a connector.

In the T-type protector 12 of the second embodiment, fixed holders 32 and 33 are respectively provided on the open ends of the horizontal frame portions of the lower cover 20 and the upper cover 21 so as to protrude outward. The pair of fixed holders 32 and 33 are opposed to each other, and have the lock holes 32 as in the first embodiment.
a and 33a are provided.

Two connectors 15A, 15B are provided at the respective ends of the left and right branch portions of the second divided wire harness 11 '.
And one connector 15A is locked and fixed to the fixed holder 32, and the other connector 15B is locked and fixed to the fixed holder 33. These connectors 15
Two connectors (not shown) fixed to the ends of the first divided wire harness 10 'are fitted and fixed to A and 15B, respectively.

FIGS. 8 and 9 show a third embodiment.
(A) As shown in (B), the engine room main
The wire harness is divided into a first divided wire harness 10 shown by a solid line on one side on the front side and a second divided wire harness 11 shown by a dotted line on the front side composed of the other side and the front-rear portion. Divided. FIGS. 8A and 8B show the same division mode, but FIG. 8A shows a left-hand drive vehicle.
FIG. 8B shows the case of a right-hand drive vehicle.

The connection between the first divided wire harness 10 and the second divided wire harness is the same as that of the second embodiment, and is outside the one open end of the horizontal frame portion 12b of the T-type protector 12 as shown in FIG. Connector is connected. On the other hand, since only the second divided wire harness 11 is inserted into the other open end of the horizontal frame portion 12b of the T-type protector 12, the second divided wire is fixed between the fixed holders 32 and 33 as shown in FIG. A tape 35 is wound around the harness 11 and fixed.

8 (A) and 8 (B), portions where the wire harness is fixed to the fixing holders 32 and 33 with the tape 35 are indicated by cross hatching. 8 (A) and 8 (B), the portion C for connecting the connector and the portion T for fixing the wire harness to the tape are only reversed left and right, and the T-type protector 12 is shared by the left-hand drive vehicle and the right-hand drive vehicle. Can be used.

FIG. 10 shows a fourth embodiment, in which a fixing holder for fixing a connector to a T-type protector 12 'is not provided. In the fourth embodiment, the engine room main wire harness is divided in the same manner as in the first embodiment, and the first divided wire harness 10 and the second divided wire harness 11 are divided into a first connector 13 and a second connector. 15,
Similarly, the first connector 14 and the second connector 16 are respectively fitted and connected. The fitted first connector 13 and second connector 15 are located at positions close to the right opening end of the horizontal frame portion 12a of the protector 12, respectively.
They are arranged while being held at 0 and 11. Similarly,
The fitted first connector 14 and second connector 16 are arranged at positions close to the left opening end of the horizontal frame portion 12a of the protector 12, while being held by the wire harnesses 10, 11, respectively.

In each of the first to third embodiments, the engine room main wire harness formed in a T-shape is divided and the divided portions are held by protectors. A) As shown in the fifth embodiment of (B) and (C), the present invention can be applied to main wire harnesses of various shapes. FIG. 10A shows a main part formed in a + shape.
The wire harness is divided at the bending points in the vertical and horizontal directions as shown by the solid and dotted lines in the figure, and
, And the divided wire harness is connected by a connector C, and the connector is fixed by a protector.

Similarly, the main wire harness formed in an H shape as shown in FIG. 10B and the main wire harness formed in an L shape as shown in FIG. Are divided at the refraction point as shown by the solid line and the dotted line in the figure, the divided portions are inserted into the protectors 12, 12 ", the divided wire harnesses are connected by the connector C, and the connectors are fixed by the protector. Fig. 10 shows the protector.
As shown in (C), the wire harness is not limited to the T-shape, but corresponds to the refraction shape of the portion where the wire harness is divided.

In each of the above embodiments, the wire harness housed in the protector and connected to the connector is:
Although the divided wire harness is obtained by dividing the main wire harness, the present invention is not limited to the divided wire harness obtained by dividing the main wire harness. That is, a plurality of wire harnesses which are not conventionally bound as one wire harness may be inserted into the protector, these wire harnesses may be connected to the connector by inserting the protector, and the connector may be supported by a fixed holder provided on the protector.

Further, in the above embodiment, the wiring harnesses are connected to each other via the connector, and the connector is fixed by the protector. In addition to the connector, as shown in the sixth embodiment in FIG. Boxes, fuse boxes, joint boxes, or junction boxes are connected via electric connection means 50, and these electric connection means 50 are locked and fixed to a large fixing holder 51 provided on the protector 12, and a tape 52 is wound therearound. It may be fixed. The wire harnesses connected by the electric connection means 50 may be divided wire harnesses formed by dividing the main wire harness, or may be wire harnesses of other product numbers.

[0043]

As is apparent from the above description, in the wire harness according to the present invention, since the long and heavy main wire harness is divided, each divided wire harness is reduced in length and weight. It is easier to handle during manufacturing and wiring. Further, since the division position of the wire harness is set to the conventional protector mounting position, the protector can hold an electrical connection means such as a connector for electrically connecting the divided wire harness. That is, since the electrical connection means such as the connector is fixed by the protector,
There is no need to provide a separate fixing means.

Further, according to the present invention, the connector can be fixed with a single touch to the fixing holder projecting outward from the open end of the protector. In addition, since the connector is arranged and fixed outside the protector, the size of the connector is not restricted, and it is not necessary to increase the size of the protector as compared with the case where the protector is fixed inside. Further, since the mounting is performed outside the protector, the mounting operation is easy.

Further, when plate-shaped fixed holders are provided on both left and right sides of the protector, the protector can be used commonly for a right-hand drive vehicle and a left-hand drive vehicle.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a wire harness according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of a protector mounting portion of the first embodiment.

FIG. 3 is an enlarged view of a main part of FIG. 2;

FIG. 4 is a schematic view showing a modified example of a fixed holder.

FIG. 5 is a schematic view showing a wire harness of a second embodiment.

FIG. 6 is a perspective view of a main part of a protector used in a second embodiment.

7 is an essential part perspective view showing a state where a wire harness is passed through the protector of FIG. 6;

FIGS. 8A and 8B are schematic diagrams showing a wire harness of a third embodiment.

FIG. 9 is a perspective view of a main part of a third embodiment.

FIG. 10 is a perspective view of a fourth embodiment.

FIGS. 11A, 11B, and 11C are schematic diagrams showing a wire harness according to a fifth embodiment.

FIG. 12 is a schematic view of a main part of a sixth embodiment.

FIGS. 13A and 13B are schematic diagrams showing a main wire harness routed to an automobile.

14A and 14B are views showing a conventional protector and a wire harness fixing means.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 1st divided wire harness 11 2nd divided wire harness 12 T type protector 13, 14 1st connector 15, 16 2nd connector 20 Lower cover 20e, 20f Fixed holder 20g, 20h Lock hole 21 Upper cover C Connector connection part T tape winding Fixed part

Claims (4)

(57) [Claims] 1. A T-shaped long and large main wire harness routed in an automobile is divided into a first horizontal wire harness and a second vertical wire harness, A T-shaped protector is placed on the second
Through the divided wire harness, insert the trunk line of the second divided wire harness into the vertical frame portion of the protector, branch at its tip in the horizontal direction, and insert these branched branch lines into the horizontal frame portion of the protector. While the connectors are respectively connected at positions protruding from both ends of the horizontal frame, the first divided wire harness in the lateral direction is passed through the horizontal frame of the protector, and at positions protruding from both ends of the horizontal frame, A branch line to be connected to the second divided wire harness is branched, and a connector is connected to a tip of the branch line. The connector of the branch line terminal of the first divided wire harness and the connector of the branch line terminal of the second divided wire harness are connected to the protector. Characterized in that they are fitted and connected at positions protruding from both ends of the horizontal frame portion. 2. A long and large main wire harness having a T-shaped branch portion arranged in a vehicle is divided at a position before or after a position where the main wire harness is branched into a T-shape, and the front or rear side is divided. And a second divided wire harness having a T-shaped branch portion. The T-shaped branch portion of the second divided wire harness is passed through a T-shaped protector, and a horizontal frame of the protector is provided. The split end of the first split wire harness is positioned at a position protruding from one end opening of the portion, and connected to the first split wire harness with a connector.・ Through the horizontal part of the wire harness,
A wire harness which is fixedly wound with a tape around a tape fixing portion provided at an outlet opening. 3. A long and large main wire harness provided with a T-shaped branch portion routed in an automobile is divided on both sides in a lateral direction of a T-branch portion, and the divided T wire is divided into two sections. A wire harness, wherein a split wire harness having a branch portion is passed through a T-shaped protector, and the split wire harness is connected to the T-shaped protector with a connector at both open ends of a horizontal frame portion of the T-shaped protector. . 4. The wire harness according to claim 1, wherein a fixing holder is provided at an opening position of the horizontal frame portion of the protector, and the connector is fixed by the fixing holder.