JPH064496Y2 - Circuit components for wire harness - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention [Industrial field of application] The present invention relates to a wire harness for an automobile, which effectively uses an interior space of the vehicle, simplifies the work of assembling the wire harness, and facilitates automation of its production. The present invention relates to a circuit structure for a wire harness for performing.

[Conventional technology and problems]

A conventional wire harness used for electric wiring of an automobile has a structure in which a large number of branch lines are derived from a main line portion in which a large number of electric wires are bundled by tape winding, and the main line portion is arranged in a space inside the automobile. It is fixed by a stopper and is connected to various electric components by a connector provided at the end of the branch line.

In such a wire harness with a converging shape, the diameter of the main line part increases, so it is not easy to install it in a limited narrow space in the automobile, and the weight and weight increase more and more as the number of electrical components increases in recent years. Have been invited. In addition, the joint work when deriving the branch line requires many steps such as stripping the wire (peeling the insulation coating), crimping the joint terminal, winding tape on the crimping part, etc. There was a problem of being low.

Further, instead of the wire harness of the electric wire focusing shape,
Japanese Patent Application Laid-Open No. 57-57412 discloses a tape-shaped electric wire intended to be easily laid along an arbitrary curve by performing a corrugated plastic deformation process in the thickness direction. For example, if the width of the tape-shaped wire is 1 cm,
Since the radius of the curve reaches 1 m, such a tape-shaped electric wire cannot realize an arbitrary circuit pattern in a narrow vehicle.

Further, JP-A-59-75505 discloses a flat cable in which insulated conductors are juxtaposed in parallel in the same plane by a series of longitudinally spaced plastic lateral webs joining adjacent insulated conductor portions. However, since a series of insulated conductors are constrained by a lateral web, it is difficult to extend any of the insulated conductors out of the axial direction of the cable, thus forming a circuit of any pattern. Is difficult.

The object of the present invention is to solve the above problems, to effectively utilize the space inside the vehicle while avoiding the enlargement of the wire harness, and to provide a circuit structure for a wire harness having a structure suitable for its assembly work and automatic production. There is.

Configuration of the Invention [Means for Solving the Problems] In order to achieve the above-mentioned object, a circuit structure for a wire harness of the present invention comprises a sheet-like or plate-like insulator having a plurality of conductive patterns having a desired circuit pattern. The bodies are arranged side by side to form a flat circuit body, and the flat circuit body is bent corresponding to its attachment site, and the shape of the bent circuit body is given to the insulator or conductor. It is characterized in that it is held by a plastic deformation force.

〔Example〕

In FIGS. 1 and 2, reference numeral 1 is a conductor, both sides of which are covered with a sheet-shaped insulator 2. A plurality of conductors 1 are arranged in parallel so as to have a desired circuit pattern, and are insulated and fixed to each other by an insulator 2. Three
Is a pattern part for branch connection having a connector part 4, and a plurality of conductors 1'having a male terminal part 1a 'formed at one end through an insulator 2'having a large number of connection holes 2a'. Are superposed on the conductor 1 and are branched and connected vertically by a known means such as spot welding.

The conductors 1 and 1'are made of a material having rigidity and having a plastic deformation force capable of maintaining its shape when bent. Further, the insulator 2 is in the form of a sheet and uses a material having flexibility to withstand bending.

In the case of the present embodiment, first, the conductor 1 is arranged on a plane (two-dimensional), and this is molded with the insulator 2 to form the flat circuit body W ₁ . Of course, it is also possible to first prepare the sheet-shaped insulator 2 and dispose the conductor 1 thereon. The point is that a plurality of conductors 1 should be insulated and fixed in parallel.

The circuit body W ₁ is bent in accordance with the unevenness of the assembling place to form a wiring harness circuit structure W ₂ as shown in FIG. Since the conductor 1 is a material having rigidity such as a single wire and a strip, the same shape is maintained by the plastic deformation force even after bending.

3 and 4 show another embodiment of the present invention. In the figure, 6 is an insulating substrate, 7 is a core material having rigidity such as metal, 8 is a circuit pattern, and 9 is a connector housing. The insulating substrate 6 may have rigidity by itself, or may have rigidity by combining the core material 7 with the sheet-shaped insulator as described above. On the other hand, the circuit pattern 8 is a conductor such as a conventional printed wiring board, bus bar, single wire or stranded wire, and may have a small rigidity itself.

In the case of the present embodiment, the circuit pattern 8 is provided on the insulating substrate 6 using the rigid core material 7 or the insulating substrate 6 having rigidity itself to form the flat circuit body W ₁ ′, and As shown in the figure, a wire harness circuit structure W ₂ ′ is bent into a desired shape by utilizing a plastic deformation force due to rigidity.

Effects of the Invention As described above, according to the present invention, the wire harness can be formed thin and conform to the shape of the wall surface, etc., and the effective space inside the vehicle can be increased without taking up space for assembly. And the work itself can be done easily. In addition, since the circuit pattern can be arranged two-dimensionally (two-dimensionally), it is easy to automate the production. Furthermore, since the branch connection can be easily made by overlapping the circuit patterns, it is possible to promptly deal with the design and change of the circuit.

The circuit structure for a wire harness of the present invention is provided in a part of a conventional focusing wire harness or in a main part of the wire harness.
Furthermore, it can be used by replacing all of them.

[Brief description of drawings]

FIG. 1 is a perspective view of a flat circuit body according to the present invention, FIG. 2 is a perspective view of a wire harness circuit structure obtained by bending the same, and FIGS. 3 and 4 are of the present invention. It is a flat circuit body and a wire harness circuit composition object concerning other examples. W ₁ , W ₁ ′ ... Flat circuit body, W ₂ , W ₂ ′ ... Wiring harness circuit component, 1, 1 ′ ... Conductor, 2 ...
Insulator, 6 ... Insulating substrate, 7 ... Core material, 8 ... Circuit pattern.

Claims (1)

[Scope of utility model registration request] 1. A flat circuit body is formed by arranging a plurality of conductors having a desired circuit pattern side by side on a sheet-shaped or plate-shaped insulator, and the flat circuit body corresponds to its mounting portion. A circuit structure for a wire harness, characterized in that the circuit body is bent, and the shape of the bent circuit body is held by a plastic deformation force applied to the insulator or the conductor.