JPS6151708A - Conductive core - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a conductive core of a wiring wire used for wiring in electronic equipment such as audio products and computers.

(Prior Art) Wiring inside electronic devices such as audio products and computers is covered with plastic material as a shielding measure.

Figure 2 is a cross-sectional view of the conductive core of a conventional wiring wire.
(1) is a conductor made of mild steel wire, tin-plated annealed copper wire, silver-plated annealed copper wire, or stranded wires thereof; ■ is a conductive plastic coating layer; The conductor (1) is formed by extrusion coating or the like. Such a conductive core may be formed by providing a jacket made of polyvinyl chloride or the like, or by arranging a plurality of conductive cores in parallel and providing a common jacket over them to form a line m. Used as electric wire.

(Problems to be solved) The conventional conductive core described above has a single conductive plastic coating layer, so the outer diameter of the core is constant and the
There is a problem in that it is not possible to peel off the i-layer and leave a part of it, which limits its use.

(Disclosure of the Invention) The present invention provides a conductive core that solves the above-mentioned problems, and includes two conductive plastic coating layers on the conductor, and the inner and outer conductive plastic coatings are not in close contact with each other. It is characterized by:

FIG. 1 is a cross-sectional view of an embodiment of the conductive core according to the present invention, in which (1) is the same conductor as in FIG. 2, (3) is the inner conductive plastic broken layer, (Φ is the outer conductive This is a plastic coating layer.Inner and outer conductive plastic coating layer (3)
(4) is formed by extrusion coating or the like using a composition in which carbon black is blended with polyolefin such as polyvinyl chloride or polyethylene. There is. Also, depending on the application, the inner and outer plastic materials may be different.
For example, the inner plastic layer may be polyolefin and the outer plastic layer may be polyvinyl chloride, or vice versa.

FIG. 3 is a perspective view of an example of the terminal processing state of the conductive core of the present invention shown in FIG. 1, and the same symbols as in FIG. 1 indicate the same parts. As is clear from Fig. 3, the outer conductive plastic coating layer (4) is easily ff1l while leaving the inner conductive plastic coating layer (3).
The length of peeling can be arbitrarily determined depending on the purpose and use.

(Effects of the Invention) According to the above-described conductive core of the present invention, the conductive plastic coating layer has a February structure, and the two living areas are not in close contact with each other and are easily peeled off. Therefore, only the outer layer can be easily peeled off leaving the inner layer. Can be done. Therefore, it is suitable as a conductive core for a multi-core electric wire for shielding and a flat multi-core electric wire that requires terminal treatment.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view of an embodiment of the conductive core of the present invention;
The figure is a cross-sectional view of a conventional conductive core, and FIG. 3 is a perspective view showing a state in which the end of the conductive core of FIG. 1 is processed. DESCRIPTION OF SYMBOLS 1...Conductor, 3...Inner layer conductive plastic coating layer, 4...Outer layer conductive plastic covering Fr1 layer. Inside the office

Claims (2)

[Claims] (1) A conductive core comprising two conductive plastic coating layers on a conductor, and characterized in that the inner and outer conductive plastic coating layers are not in close contact with each other. (2) The conductive core according to claim 1, wherein the two conductive plastic coating layers are made of different plastic materials.