JPH0739136Y2 - Branch connection structure of flat wire harness - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a technique for branching a wire harness used in an automobile or the like.

[Conventional technology]

The wire harness is an integrated assembly of electric wires used for the wiring of one automobile, etc., and includes a main line part in which a large number of electric wires are converged and a branch line part branched from the main line part as necessary. It consists of Each of these branch line parts,
It is connected to each electric component arranged inside the vehicle by a connector or the like. FIG. 5 shows a conventional example of the branch portion of this wire harness. In the figure, reference numeral 1 is one of the electric wires constituting the wire harness, and from this electric wire 1, two electric wires 1 ', 1'are branched. To branch, first, cover the middle of the wire 1,
The conductors are exposed by peeling off the coating on the tips of the branch lines 1 ', 1'. Next, these three conducting wires are superposed on each other, and the intermediate joint terminal 6 is covered from the outside and crimped to be connected. After that, the exposed portion of the conductive wire is tape-wound, and the electric wires 1 are converged to form a wire harness 7, as shown in FIG. It forms a branch.

[Problems to be solved by the device]

However, such a branching method has a problem that the branching portion of the wire harness is enlarged and a large amount of space is required for wiring, which makes wiring difficult. Recently, the flattening of wire harnesses has been progressing, but the flat wire harness has the same problem.

On the other hand, it has been considered that a connector housing is provided at a branch portion of the wire harness to connect with the electrical equipment. However, even in that case, there is a problem that the design of the branch position of the wire harness has to be changed every time the mounting position of the electrical component is changed.

The present invention has been made in view of the above facts, and it is an object of the present invention to provide a wire harness in which a branch portion does not become large and a branch position can be easily changed by following a change in the position of an electrical component. Has an aim.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention is a flat wire harness in which a plurality of electric wires are arranged with a gap between each other and fixed by sandwiching both sides with an insulating plate. A terminal insertion hole that partially exposes one or more electric wires is formed, and a pressure contact terminal is connected to the electric wire exposed from the terminal insertion hole.

Further, in this flat wire harness, a plurality of terminal insertion holes are formed along the longitudinal direction of the electric wire, or the terminal insertion holes are formed as elongated holes along the longitudinal direction of the electric wire. Is desirable.

〔Example〕

An embodiment of the present invention will be described above with reference to the drawings. 1 (a) and 1 (b) show a branch connection structure of a flat wire harness according to the present invention. In these drawings, A is a flat wire harness in which a plurality of electric wires 1 are sandwiched between two upper and lower insulating plates 2 in a sandwich shape to be adhesively fixed. There are n electric wires 1-1, 1-2, ... 1-n, and a small gap is provided between the electric wires. A plurality of terminal insertion holes 3 are formed in the upper and lower insulating plates 2a, 2b shown in FIG. 1 (b), and the electric wires 1-1 and 1-2 are partially exposed. Four
Is the connector housing and the pressure contact terminals provided inside.
5a is inserted into the terminal insertion hole 3 and connected to the electric wire 1-1 or 1-2 to form a branch portion of the flat wire harness A. As shown in FIG. 2, the connector housing 4 is provided with tab-shaped terminals 5 in the terminal accommodating chamber 4a. The rear end side of the tab-shaped terminal 5 is bent into an L-shape to form a pressure contact terminal 5a having a bifurcated tip, and protrudes from the connector housing 4 to the outside. The press contact terminal 5a is inserted into the terminal insertion hole 3 of FIG. 1 as described above, and one of the two press contact terminals presses the electric wire 1-1 and the other presses the electric wire 1-2.

After the connector housing 4 and the flat wire harness A are connected, the connector housing 4 and the connector housing on the electrical component side (not shown) may be fitted together. Therefore, the branched portion can be branched without being enlarged.

Moreover, several terminal insertion holes 3 are bored along the electric wires 1-1 and 1-2. Then, the connector housing 4 can be inserted into these arbitrary holes 3. Therefore, even if the position of the electrical component is changed, the wire harness A can be used without changing the design.

The terminal insertion hole 3 cannot be connected to the electric wire 1 unless it penetrates at least one side of the insulating plates 2a and 2b. However, the terminal insertion hole 3 of the other insulating plate does not need to be penetrated, and the pressure contact terminal 5a is formed by drilling up to the middle.
If the tip part of can be inserted, the branch part can be connected. Also, when the conductor wire is fixed away from the other insulating plate, such as when the coating layer of the wire is thick,
Even if this hole is not provided, the press contact terminal 5a can be connected to the electric wires 1-1 and 1-2. As shown in Fig. 1, both insulating plates 2a, 2b
The pressure contact terminal 5a can be inserted from above or below as long as it is penetrated through.

FIG. 3 shows another embodiment in which the terminal insertion holes 3'are formed as elongated holes in the longitudinal direction of the exposed wires 1-1, 1-2. With such a configuration, the connector housing 4 can be inserted into any position in the elongated hole 3 ', and the branch position can be finely determined.

FIG. 4 is an example of a fixing structure of the connector housing 4 and the flat wire harness A. In the example shown in (a),
A fixing piece 4c is formed on the connector housing 4. The fixing piece 4c is formed integrally with the connector housing 4 by a hinge 4d. Meanwhile, connector housing 4
A clamp protrusion 4b is erected on the. When the pressure contact terminal 5a of the connector housing 4 and the electric wire 1 are pressure-contacted with each other, the clamp projection 4b is also fitted and fixed in the hole formed in the flat wire harness A and the hole provided in the fixing piece 4c. (B) is a case where the fixing piece 4c of the connector housing 4 is not provided. The clamp protrusion 4b penetrates the hole and is directly fixed to the flat wire harness A. By doing so, the connector housing 4 can be fixed at the same time as branching, and the work becomes more efficient.

In the above embodiments, the electric wire 1 is a conductor covered with a resin or the like, but a flat wire harness may be used in which a bare wire of only the conductor is directly sandwiched between insulating plates. In this case, it is desirable that the terminal insertion hole to which the connector is not connected be covered with an insulating material by applying or adhering.

[Effects of the Invention] As described above, according to the present invention, a terminal is inserted into a flat wire harness to partially expose one or more electric wires that make up the flat wire harness by penetrating one of its insulating plates. Since the hole is provided, it is possible to obtain a wire harness in which the branched portion is not enlarged.

In addition, even if the position of the electrical equipment is changed by providing multiple terminal insertion holes or using long holes, the branch position can be made to follow the electrical equipment without changing the design of the wire harness. it can.

Further, the branch connection from the flat wire harness can be accomplished by simply connecting the pressure contact terminal to the electric wire exposed from the terminal insertion hole.

[Brief description of drawings]

FIG. 1 shows one embodiment of the present invention, (a) is a top view,
(B) is a front view, FIG. 2 is a perspective view of a connector housing used for a branch portion, FIG. 3 is a top view of another embodiment, and FIGS. 4 (a) and (b) are connector housings. FIG. 5 is a vertical sectional view showing an example of fixing a flat wire harness, and FIGS. 5 and 6 are perspective views of a conventional example. A: Flat wire harness, 1 ... Electric wire, 2 ... Insulation plate,
3, 3 '... Terminal insertion hole.

Claims (3)

[Scope of utility model registration request] 1. A flat wire harness in which a plurality of electric wires are arranged with a gap therebetween and fixed by sandwiching both sides with insulating plates, wherein one of the insulating plates is penetrated and one or more of the electric wires are partially formed. A branch connection structure of a flat wire harness, characterized in that a terminal insertion hole to be exposed is formed and an electric wire exposed from the terminal insertion hole is connected to a pressure contact terminal. 2. The branch connection structure for a flat wire harness according to claim 1, wherein a plurality of terminal insertion holes are formed along the longitudinal direction of the electric wire. 3. The utility model registration claim, wherein the terminal insertion hole is a long hole extending in the longitudinal direction of the electric wire.
Branch connection structure of the flat wire harness described in the item.