JPH0439823A - Assembly and molding of wire harness and connector therefor - Google Patents

Abstract

PURPOSE:To improve connectability between a cable group and a terminal, so as to improve assembly moldability of a wire harness by using a divided wire harness integrated into a pressure welded terminal which has excellent general connectability with the cable group. CONSTITUTION:Divided harnesses 1A, 1B to be grouped in pair, and thus to be connected together, are separately formed in each layer into a divided harness 1A of the structure dedicated for the pressure welded terminal for which only a pressure welded terminal is arranged and wired, and into a divided harness 1B of the structure of a clad terminal for which only a clad terminal 7A is arranged and wired. Namely, the divided harnesses 1A, 1B are connected with each other by inserting the clad terminal 7A of an inter-group connection cable 5 into a terminal storage for the last-in of a connector 2 of the opposed divided harness. and the divided harnesses 1A, 1B are grouped, and are bound with each other into a single wire harness thus assembled and molded. The connectability between a cable group 4 and the terminal is thereby improved, and the assembly moldability of the wire harness can thus be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for assembling and forming a wire harness by wiring and bundling a group of electric wires, and a connector used for the wire harness.

"Prior Art" The number of circuits in automobile wiring harnesses increases with the increase in the number of electrical components, and some wire harnesses include several hundred circuits.

Therefore, it is difficult to assemble and mold wire harnesses in terms of quality and work efficiency, which involves wiring and assembling the wires that fill this enormous circuit into the required form. Split wire harnesses divided into several groups (hereinafter simply referred to as split harnesses) are formed, and the inter-group connection wires pulled out from the split harness groups are gathered and interconnected at the connectors of the paired split harnesses. However, a method is adopted in which the divided harness groups are then bundled together to form a single wire harness that satisfies the required number of circuits.

Since this split wire harness and the wire harness assembled from it are subjected to strong external pulling force on the wires during assembly and molding and use, crimp terminals that are structurally strong against external pulling forces are mainly used, or crimp terminals and crimp terminals are used. A hybrid arrangement of is adopted.

``Problems to be Solved by the Invention'' In general, when connecting a terminal to a group of electric wires, with a pressure contact terminal there is no need to peel off the wire sheathing, and furthermore, mechanical pressure welding is easy, whereas a crimp terminal In addition to the necessity of peeling off the coating, mechanical crimping is a solid layer, and press contact terminals have a significant advantage in connection to electric wires.

However, since the conventional split harnesses described above primarily use crimp terminals or have a hybrid structure of crimp and crimp terminals, automation of wiring and terminal connections is limited, and the assembly and moldability of the split harness group is poor. However, there is a problem in the formability of automotive wire harnesses, which require high productivity in mass production.

The present invention provides a method for assembling and molding a wire harness and a connector for the wire harness, which solves the drawbacks of the conventional means.

[Means for Solving the Problems] The present invention solves the above-mentioned technical problems by ``forming a divided wire harness group in which wires are wired in a required form and connectors are arranged to form a required circuit, and the divided wire Connect the terminals of the intergroup connecting wires pulled out from the harness group.
When assembling and forming a single wire harness for the required circuit by gathering the divided wire harnesses on the other side and connecting them between groups, one of the divided wire harnesses is connected to the connector of the other divided wire harness. The other divided wire harness is formed by arranging a group of crimp connectors that accommodate crimp terminals, and attaching crimp terminals to the connecting wires between the groups. Attach the crimp terminals to the connecting wires between each group.
A method in which the mating divided wire harnesses are inserted into the post-installation terminal accommodating chambers of the connectors and interconnected, and then the paired divided wire harnesses are assembled and formed into a bundle.''

Specific connectors using the above-mentioned molding method include a connector in which a terminal accommodating chamber having an upper opening for wire insertion is used for both a pressure contact terminal and a crimp terminal, and a connector in which a terminal accommodating chamber having an upper part for wire insertion is used as both a pressure contact terminal and a crimp terminal, and a There is a mode in which a connector having a hybrid terminal accommodating chamber configuration is provided with a "post-insertion terminal accommodating chamber exclusively for crimp terminals."

"Function" The assembly and molding method of the present invention having the above-mentioned configuration combines split harnesses that are assembled in pairs, a split harness with a dedicated structure for pressure contact terminals in which only pressure contact terminals are arranged and wired, and a split harness with a structure exclusively for pressure contact terminals, in which only pressure contact terminals are arranged and wired. Since the wires are formed into separate harnesses with a crimp terminal structure and connected in layers, a separate harness exclusively for the pressure contact terminals can be formed within the range where the pressure contact terminals can be constructed, and a group of electric wires can be connected to the connector all at once by mechanization. becomes possible over a wide range of areas.

Further, by using the dual-purpose connector of the embodiment described above, the arrangement configuration of the connector is simplified.

"Example" Hereinafter, a detailed explanation will be given based on an example. First, with reference to FIG. 1 showing an embodiment of the assembly molding method of the present invention,
The terminals of the intergroup connecting wires of the pair of split harnesses having the required circuit are collected and interconnected to the connector of the other split harness, and then the connected split harnesses are assembled into a single bundle. In molding one wire harness, one split harness IA is configured exclusively for a pressure contact terminal in which a wire group 4 is pressure-connected to a pressure contact terminal 6 in which a connector 2 is disposed and housed, and between pulled out groups. A crimp terminal 7A for post-insertion is connected to the connecting wire 5.

The split harness IB, which is a pair with the split harness IA, is constructed by crimping and connecting the wiring wire group 4 to the crimp terminal 7 in which the connector 2 is arranged and housed. A crimp terminal 7A for post-insertion is attached to the electric wire 5.

That is, as shown in FIGS. 1(B) and 1(C), the connector of this embodiment includes a terminal housing chamber 9 having a wire insertion opening 8 above, and any of the crimp terminals 6 and 7 is inserted into this terminal housing chamber 9. It is a dual-purpose storage chamber connector into which any item can be inserted.

Note that the split harness IA, which is configured exclusively for pressure contact terminals, has the condition that the wiring wire group 4 connected between the pressure contact terminals 6 is of equal length (since pressure contact terminals are inferior in resistance to external force from pulling wires, the presence of wires of unequal length) Circuits with wiring conditions that satisfy the following conditions are selected and grouped, and the split harness IB with crimp terminal configuration is selected and grouped.
is a grouping of specific circuits such as U-turn circuits (closed circuits) and branch joint circuits in which the above-mentioned wire equal length condition is difficult.

The above split harnesses IAIB are interconnected by inserting the crimp terminals 7A of the inter-group connection wires 5 into the post-insertion terminal accommodating chambers of the connector 2 of the other split harness, and the split harnesses IAIB are assembled and bundled to form a single wire harness.

Next, another embodiment of the connector used in the above-described molding method will be described with reference to FIG. The connector shown in the second figure is a post-insertion terminal of the crimp terminal 7A of the inter-group connecting wire 5 at the side end of the group of 9 groups of insulation displacement terminals arranged in parallel, instead of the connector for both insulation displacement and crimp terminals in the embodiment shown in FIG. The connector has a shape in which a storage chamber 1o is integrally attached thereto, and a presser member 11 that covers and locks the wire insertion opening 8 of the press-contact terminal storage chamber 9 group is provided on this connector. It is designed to stabilize the posture of the pressure welding wire.

The split harness IA described above is made of a terminal chain reel 1 obtained by winding up a longitudinal series of pressure contact terminals 12 in which pressure contact terminals 6 are longitudinally connected in front of the connector 2, as illustrated in FIG.
Three groups are arranged in parallel, and a group of insulation displacement terminals are fed out from the reel group and inserted into the connector 2 all at once, and at the same time, a group of electric wires is mechanically supplied from above the connector 2 into which the insulation displacement connectors have been inserted. Bulk pressure welding.

Molded extremely efficiently.

"Effects of the Invention" As explained above, the method for assembling and molding a wire harness of the present invention involves interconnecting and assembling divided wire harnesses to assemble and mold a wire harness. Since it uses a unified split wire harness with pressure contact terminals that have excellent bulk connectivity with
This has the effect of improving the connectivity between the wire group and the terminals and improving the assembling formability of the wire harness.

Furthermore, according to the above-mentioned connector that can be used for both pressure contact and crimp terminals, the difficulty in arranging connectors for split wire harnesses is alleviated, and the degree of freedom in designing grouping for split wire harnesses is improved. There are practical effects such as efficiency and ease of manageability.

[Brief explanation of drawings]

Fig. 1 shows a method of assembling and molding a wire harness according to an embodiment of the present invention, in which (A) is a perspective view of the divided wire harness, (B) is a perspective view of the connector, and (C) is the state in which the connector is used. FIG. 2 is a perspective view of a connector of another embodiment used in the assembly and molding method of the present invention, FIG. 3 is a perspective regenerative code showing the method of inserting the press-contact terminal in the embodiment of FIG. 1, IAIB. : Split wire harness, 2: Connector, 4: Wiring wire, 5 Connection wire between two groups, 6: Pressure contact terminal, 7: Crimp terminal, 7A: Post-fit crimp terminal, 8: Wire insertion opening, 9: Terminal Storage chamber, 10: Post-load terminal storage chamber, 11: Holder member patent issuer

Claims (3)

[Claims] (1) Wire the wires in the required form and arrange the connectors to form a divided wire harness group that forms the required circuit, and connect the terminals of the inter-group connecting wires pulled out from the divided wire harness group to the divided wires of the other party. When a single wire harness for a required circuit is assembled and formed by combining the split wire harnesses together and assembling them together at the connector of the harness and connecting the groups, one split wire harness is used as a "group of pressure welding connectors containing pressure contact terminals". In addition to specially arranging and forming
The other split wire harness is formed by arranging a group of crimp connectors containing crimp terminals, and attaching crimp terminals to the intergroup connecting wires. A wire harness characterized in that the crimp terminals are inserted into the post-installation terminal accommodating chamber of the connector of the mating split wire harness and interconnected, and then the paired split wire harnesses are assembled and formed into a bundle. assembly molding method. (2) Claim No. 1 in which a group of terminal accommodating chambers having an upper wire insertion opening is used both as a pressure contact terminal and a crimp terminal.
A wire harness connector used in the wire harness assembly and molding method described in 1. (3) A connector for a wire harness used in the method for assembling and molding a wire harness as set forth in claim (1), wherein a crimp terminal accommodating chamber for post-insertion is integrally attached to a group of crimping terminal accommodating chambers.