JPH10214526A - Assembling method for wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use this wire harness to a wire harness having an other item number because having no sprice-connected branch wire to improve manufacturing efficiency, by connecting an electric wire, needed to be connected to the other sub-hardness electric wire, to the other sub-harness electric wire by a pressure-contact joint connector at the time of a normal binding for assembling wire harness while coalescing with plural sub-harness. SOLUTION: Electric wires w3 and w4 are provided on a first sub-harness 10 side, and one end is inserted into a connector 13 together with the other electric wires w5 and w6, while another end is left as in the cut condition of w3-1 and w4-1. While in a second sub-harness 11, a terminal, together with the other electric wire, is connected to connectors 16 and 17 instead splice- connecting a branch wire to electric wires w1 and w2. In the final binding where the first and second sub-harnesses are bound together, the middle part between the end w3-1 and the electric wire w1 is connected by a pressure- contact joint connector 20, and similarly the middle part between the end w4-1 and the electric wire 2 is connected by a pressure-contact joint connector 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of assembling a wire harness for a motor vehicle, and more particularly to a method of assembling a wire harness by combining a plurality of temporarily tied sub-harnesses, thereby eliminating the work of inserting a terminal into the connector during the actual tying. This prevents the terminal from being mistakenly inserted into the terminal, deformation of the terminal, and the like, and improves the efficiency of the work of assembling the wire harness.

[0002]

2. Description of the Related Art In a wire harness for an automobile, a product number is set according to a difference in an electrical system, and a wire harness is assembled for each product number. It is manufactured by combining. That is, the sub harness is also formed for each product number.

For example, at present, when assembling a wire harness W / H having a configuration shown in FIG. 4A, it is divided into a plurality of sub-harnesses 1, 2, and 3 shown in FIG. The wiring harness W / H is assembled by laying these sub-harnesses 1, 2, and 3 on a wiring diagram board, uniting them, applying tape winding or the like, and finally binding them.

In the temporary binding step of forming the sub-harnesses 1, 2, and 3, the terminal of the terminal of the electric wire w is inserted into the connector 4, but is inserted into the connector connected to another sub-harness. The terminal 5 of the electric wire terminal that needs to be connected is a so-called bra terminal in a state where the terminal is not inserted into the connector in the state of the temporarily tied sub-harnesses 1, 2, and 3, and exposed.

A splice connection 6 is made from each sub-harness (sub-harness 1 in FIG. 4B) as necessary to provide a branch line 7, and a terminal 5 is connected to a terminal of the branch line 7. The terminal 5 is also a bra terminal exposed to the outside. The bra terminals 5 of the sub-harnesses 1, 2, and 3 with no connector inserted are inserted into the connector 4 connected to another sub-harness at the time of final binding.

[0006]

As described above, when a terminal that has not been inserted into a connector in the state of a temporarily tied sub-harness is later inserted into a connector of another sub-harness on a wiring diagram board at the time of final tying. In addition, erroneous insertion of the terminal into the connector is likely to occur. In particular, when dozens of sub-harnesses are assembled and finally bound, the number of terminals to be inserted later increases, and the incidence of erroneous insertion increases. In addition, the post-insertion work of the terminals greatly deteriorates the assembly workability at the time of final binding. Furthermore, since the bra terminal 5 is exposed to the outside from the temporary binding step for manufacturing the sub-harness to the final binding step for manufacturing the wire harness, the external stress is easily deformed. In some cases, it may not be possible to insert the connector into the connector during the final binding step.

Further, as described above, the wire harness is assembled for each product number, and the sub-harnesses constituting this wire harness are also formed for each product number. However, if the number of product numbers is small, the manufacturing efficiency is extremely poor. Has become. Thus, if the sub-harness can be shared with another type of wire harness, the manufacturing efficiency can be improved, but the current sub-harness cannot be shared because it is spliced.

For example, the wire harness of the product number B shown in FIG. 5A is composed of sub-harnesses 1 ', 2', 3 'and 6, and the wire harness of the product number A shown in FIG. Compared with the sub-harnesses 1, 2, and 3, the sub-harnesses 1 ', 2', and 3 'of the product number B have the added splicing branch line 7, so the sub-harnesses 1, 2, and 3 can be shared. Can not.

The present invention solves the above problems,
The sub-harness that has been temporarily tied can be shared with other types of wire harnesses to increase manufacturing efficiency,
Out of the wires of the sub-harness, insert all the terminals connected to the terminal into the connector, eliminate the need to insert the terminal into the connector at the time of final binding, prevent incorrect insertion and prevent deformation of the terminal, The task is to improve workability at the time.

[0010]

In order to solve the above-mentioned problems, the present invention provides a method of sharing a temporarily tied sub-harness,
It is intended to be used as a sub-harness configuring a wire harness of a different electrical system part number, and is divided into units that can share the above-mentioned sub-harness,
In addition, among the wires of these sub-harnesses, the wires whose terminals are connected to the terminals are inserted into the connector, and the wires that need to be connected to other sub-harnesses are left unspliced by splices. At the time of final bundling, combining multiple sub-harnesses to assemble a wire harness, the wires that need to be connected to the wires of the other sub-harness are connected to the wires of the other sub-harness using the crimp joint connector And a method of assembling a wire harness.

With the above-described structure, the so-called bra terminal which has been left exposed in the temporarily bound sub-harness is eliminated, and the terminal insertion into the connector at the time of final binding is eliminated. Erroneous insertion and deformation of the terminal can be prevented. Also, instead of eliminating the splice connection branch line, a required electric wire is provided in the sub-harness, and at the time of the main binding to combine the sub-harness, the electric wires of the sub-harness are connected to each other using a press-fit joint connector as necessary. Thereby, a connection circuit and a branch circuit with another sub-harness can be formed.

As described above, since a branch circuit connected to another sub-harness can be formed without providing a branch line by a splice in the sub-harness, the sub-harness can be used in common with a wire harness of another part number. Thus, the manufacturing efficiency of the sub-harness can be improved.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a wire harness W / H-1 according to the present invention.
The wire harness W / H-1 is an improvement of the original wire harness W / H shown in FIG.

That is, the original wire harness W shown in FIG.
/ H is the first sub-harness 10 ′ and the second sub-harness 1
1 ′, and the terminals of the terminals of the branch lines w3 ′ and w4 ′ branched from the electric wires w1 and w2 of the second sub-harness 11 ′ are connected to the connector 13 of the first sub-harness 10 ′ at the time of the final binding. It is connected by putting.

In the improved wire harness W / H-1 of the present invention shown in FIG. 1, electric wires w3 and w4 corresponding to the branch lines w3 'and w4' are provided on the first sub-harness 10 side.
A terminal (not shown) connected to a terminal on one end together with the wires w5 and w6 of the other first sub-harness is inserted into the connector 13 in advance. The terminals on the other ends of the wires w5 and w6 are inserted into the connector 14 as in the prior art, and
The terminals w3-1 and w4-1 of the other terminals w3 and w4 are kept disconnected, and the terminals are not connected.

On the other hand, in the second harness 11, the electric wire w
1, w2 without splicing a branch line to another wire w
Terminals at both ends are connected to connectors 16 and 17 together with 7, w8.

When the above-mentioned first sub-harness 10 and second sub-harness 11 are united and finally bound to assemble the wire harness W / H-1 on a wiring diagram board, the electric wire w3 of the first sub-harness 10 is used. Terminal w3-1 of the second sub-harness 11 and an intermediate portion of the electric wire w1 of the second sub-harness 11.
0 is press-connected. Similarly, terminal w4- of electric wire w4
1 and an intermediate portion of the electric wire w2 by press-fitting joint connector 21.
Is press-connected. These crimp joint connectors 2
0 and 21 are connector housings 23 as shown in FIG.
Wires w3 and w1 connected to each other by two press-connecting blades 24a and 24b provided in the press-contact terminal 24 therein.
The electric wires w3 and w1 (w4 and w2) are connected by cutting the insulating coating of (w4 and w2) and making it contact with the core wire. By this pressure connection, the electric wires w3 and w4 of the first sub-harness 10 are connected to the electric wires w1 and w2 of the second sub-harness 11 via the pressure connection terminals 24 and 24 in the pressure connection joint connectors 20 and 21, respectively. The circuit configuration is the same as the conventional wire harness W / H shown.

When the first sub-harness 10 is used to form a wire harness of another product number, if the wires w3 and w4 do not need to be connected to other sub-harnesses, they are left as they are. It can be used for heat dissipation.

[0020]

As is apparent from the above description, according to the present invention, since the spliced branch line is not provided in the temporarily tied sub-harness, when the sub-harness is assembled and the wire harness is assembled, other sub-harnesses are not required. It can be used for the wire harness of the product number. That is, it is possible to change the part number assembled by assembling the sub-harnesses, and it is not necessary to re-form the sub-harness every time the part number is different, so that the production date and time can be shortened and the production efficiency can be increased. Further, since the sub-harness can be produced in the unit of the sub-harness instead of the product number of the wire harness, the production quantity of the sub-harness can be stabilized and the production efficiency can be increased.

Further, since all the terminals of the electric wire terminals constituting the sub-harness are inserted into the connector, when these sub-harnesses are united and finally bound, the rear insertion of the terminal into the connector can be completely eliminated. . Therefore, it is possible to prevent the terminal from being erroneously inserted into the connector at the time of the actual binding, and it is possible to solve the problem that the exposed terminal is deformed until the temporarily bound sub-harness is fully bound. Further, since the terminals are not inserted at the time of final binding, the work efficiency of assembling the wire harness can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a sub-harness constituting a wire harness according to the present invention.

FIG. 2 is a schematic diagram showing a conventional configuration of the wire harness of FIG.

FIG. 3 is a sectional view of the press-connecting connector of FIG. 1;

FIG. 4A is a schematic diagram showing a conventional wire harness, and FIG. 4B is a schematic diagram of a sub-harness constituting the wire harness of FIG.

5A is a schematic view showing another conventional wire harness of another product number, and FIG. 5B is a schematic view of a sub-harness constituting the wire harness of FIG. 5A.

[Explanation of symbols]

 Reference Signs List 10 first sub-harness 11 second sub-harness w1 to w8 electric wire 13 to 17 connector 20, 21 press-connecting joint connector 24 press-connecting terminal W / H, W / H-1 wire harness

Claims (1)

[Claims] 1. The provisionally tied sub-harness is shared,
It is intended to be used as a sub-harness constituting a wire harness of a different electrical system part number, the above-mentioned sub-harness is divided into units that can be shared, and terminals of terminals of the wires of these sub-harnesses are connected to terminals. Insert the connected wires into the connector, leave the wires that need to be connected to other sub-harnesses without connecting the spliced branch wires, and combine multiple sub-harnesses to assemble the wire harness. A method of assembling a wire harness, wherein an electric wire that needs to be connected to an electric wire of another sub-harness at the time of bundling is connected to an electric wire of another sub-harness using a press-fit joint connector.