JPH0689761A - Flat type multi-core electric cable - Google Patents

Abstract

PURPOSE:To provide a flat type multi-core electric with which insertion into a connector is made easy and certain by preventing the end conductor from tearing off from fixing tape. CONSTITUTION:A plurality of insulated electric wires 1 having a square or oval cross section are laid parallel with removed insulations at the ends in line so that flat conductors 2 are exposed, which are secured by a fixing tape 3 together with the insulations while their spacing P is held as specified. The insulated electric wires 1 are laid in tight contact with one another or at a certain desired spacing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat type multi-core electric wire used for wiring between printed wiring boards, particularly between flexible printed wiring boards.

[0002]

2. Description of the Related Art An outline of the conventional example 1 of a flat type multi-core electric wire in which the distance between exposed end portions obtained by aligning and peeling the end portion coatings, that is, the exposed end portions together with the covering portion is fixed with a fixing tape. Is shown in FIG.

In the conventional example 1, a plurality of round-shaped insulated wires 4 are arranged in parallel, and the round-shaped conductor 5 peeled by aligning the coating of the ends is fixed together with the ends of the round-shaped insulated wires 4 with a fixing tape 3. It was done.

FIG. 4 shows the outline of the configuration of the conventional example 2.
The same reference numerals as those in FIG. 3 indicate the same parts.

In the conventional example 2, the exposed portion of the round conductor stripped by aligning the coating is pressed into a rectangular shape to form a terminal rectangular conductor 6
Is formed.

Details of Conventional Example 1 and Conventional Example 2 are disclosed in, for example, Japanese Patent Laid-Open No. 3-236112.

[0007]

In the conventional example 1 illustrated in FIG. 3, since the rigidity of the round conductor is higher than that of the fixing tape mainly composed of polyester, an external bending force is applied to the end portion. At this time, the round conductor easily peels off from the fixing tape,
There is a problem that it cannot be inserted into a connector for connection with a printed wiring board.

Further, in the conventional example 2 illustrated in FIG. 4, although the problem of easy peeling between the round conductor and the fixing tape at the end is prevented, a press for processing the end of the round conductor into a rectangular shape. There is a problem that a process is required, which leads to high cost.

The object of the present invention is to solve the conventional problems,
It is an object of the present invention to provide a low-priced flat multicore electric wire in which the conductor at the exposed end portion is prevented from peeling off from the fixing tape, and is easily and reliably inserted into the connector.

[0010]

In order to achieve the above-mentioned object, the present invention arranges a plurality of insulated electric wires in parallel, aligns and peels off the coatings of the end portions of each of the insulated electric wires, and separates the insulations by peeling off the coatings. A flat multicore electric wire in which exposed conductors at the ends of the electric wire are fixed to each other with a fixing tape together with a constant distance between the conductors, and the insulated electric wire has a rectangular or long cross section. The conductor is circular, and the conductor is a rectangular conductor.

Further, it is effective that the plurality of insulated wires are closely arranged in parallel with each other.

Further, it is effective that the plurality of insulated wires are arranged in parallel with each other at intervals.

[0013]

According to the present invention, since the flat conductor is composed of an insulated electric wire having a quadrangular or oval cross section, the flat conductor of the terminal portion from which the coating is peeled off is not easily peeled off from the fixing tape, and the end portion is pressed. The processing cost can be reduced without the need for the above.

Further, since the insulated electric wire has a quadrangular shape or an oval shape, it is possible to easily and surely arrange the exposed flat conductors at the end portions from which the coating has been peeled off at equal intervals and at equal intervals.

Embodiments will be described below with reference to the drawings.

[0016]

EXAMPLE 1 FIG. 1 is a diagram showing an outline of the configuration of Example 1 of a flat multicore electric wire of the present invention.

In the first embodiment, a rectangular conductor 2 made of tin-plated annealed copper is formed by extruding an insulating resin such as DUC to form a coating, which has a quadrangular cross section, and in the first embodiment, an insulation having a rectangular cross section. A plurality of electric wires 1, four in the present Example 1, are closely arranged in parallel, and the coating of the end portions is aligned and peeled off.
For example, a fixing tape 3 made of polyester or the like is attached and fixed to the flat conductor 2 at the exposed end together with the covering portion at the end of the insulated wire 1, and the spacing P between the flat conductors 2 exposed by peeling off the covering. It is formed so as to be constant.

FIG. 2 shows Example 2 of the flat multicore electric wire of the present invention.
It is a figure which shows the structural outline of.

The second embodiment is the same insulated wire 1 as the first embodiment.
A plurality of them, three in the present embodiment, are arranged in parallel with each other at intervals, and the end portions of the coating are aligned and peeled off, and the same fixing tape 3 as that of the first embodiment is attached to the end portion of the first embodiment. In the same manner as in (1) and (2), the coating is peeled off to form a constant interval p between the exposed flat conductors 2.

The fixed P configuration of the first embodiment and the variable p configuration of the second embodiment are suitable for practical use because they can be appropriately applied according to various dimensions and types of the connecting connector.

Further, since the flat conductor is composed of an insulated wire having a quadrangular or oval cross section, the flat conductor wire at the end portion is not easily peeled off from the fixing tape, and in addition to the conventional round conductor and round insulated wire. In the case of a flat type multi-core electric wire constructed,
The problem that it was difficult to make the conductors whose end coatings were peeled off uniform in the same direction was also solved.

Further, unlike the conventional example 2, unlike the terminal flat rectangular conductor, there is no need for a separate process such as pressing, and the manufacturing cost can be reduced.

[0023]

As described above, in the flat multicore electric wire of the present invention, a plurality of insulated electric wires are arranged in parallel, and the coatings of the end portions of the respective insulated electric wires are aligned and peeled off, and the coatings are peeled off. A flat multicore electric wire in which exposed conductors at the end portions of each insulated wire are fixed with a fixing tape together with a constant spacing between the conductors, and the insulated wire has a rectangular or long cross section. Since the conductor has a circular shape and the conductor has a flat conductor, it is difficult for the flat conductor of the terminal portion exposed by peeling the coating to be peeled off from the fixing tape when the connector is inserted into the connector. It is possible to easily and surely secure the desired spacing by uniformly aligning the directions of the rectangular conductors.

Further, the plurality of insulated wires are practically suitable because they have a configuration in which the mutual intervals are arbitrarily set according to the type, size, etc. of the connecting connector used.

Further, the flat multi-core electric wire of the present invention can be manufactured at a low price because a rectangular conductor is used and a coating made of an insulating resin can be manufactured by a series of steps of forming by extrusion with a rectangular or oval cross section. Can be realized.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a flat multicore electric wire embodiment 1 of the present invention.

FIG. 2 is a configuration diagram of a flat multicore electric wire embodiment 2 of the present invention.

FIG. 3 is a configuration diagram of a flat type multi-core electric wire related example 1;

FIG. 4 is a configuration diagram of a flat-type multi-core electric wire related example 2;

[Explanation of symbols]

 1 insulated wire 2 flat conductor 3 fixing tape 4 round insulated wire 5 round conductor 6 terminal flat round conductor

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H02G 15/24 7028-5G

Claims (3)

[Claims] 1. A plurality of insulated electric wires are arranged in parallel, the coatings of the end portions of the respective insulated electric wires are aligned and peeled off, and the exposed conductors of the end portions of the respective insulated electric wires from which the coating is peeled off are A flat multi-core electric wire, which is fixed with a fixing tape together with a covering portion while keeping a constant mutual distance between conductors, wherein the cross section of the insulated electric wire is a quadrangle or an oval, and the conductor is a rectangular conductor. A characteristic flat multi-core electric wire. 2. The flat multicore electric wire according to claim 1, wherein the plurality of insulated electric wires are closely arranged in parallel with each other. 3. The flat-type multi-core electric wire according to claim 1, wherein the plurality of insulated electric wires are arranged in parallel with each other at intervals.