JPS61292811A - Jumper wire and manufacture thereof - 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 jumper wire used for connection between printed circuit boards, etc., and a method for manufacturing the same.

(Prior art and problems to be solved) For example, jumper wires used for connections between printed circuit boards, etc.
Conventionally, jumper wires have been used in which many conductors of the same diameter are arranged in parallel within an insulating film.

In recent years, with the miniaturization and higher density of equipment, there has been a demand for thinner, more flexible jumper wires with smaller pitches between conductors, and this has led to thinner conductors and the use of softer coating materials. .

However, due to the thinning of conductors, jumper wires connected between printed circuit boards by soldering or the like are susceptible to bending and twisting during transportation and assembly, and the problem is that the conductors located on the outside are particularly prone to breakage. was there.

(Means for Solving the Problems) The present invention provides an improved jumper wire that eliminates the above-mentioned problems, as well as a method for manufacturing the same. The main conductors are arranged in parallel, and the diameter of the outer conductor among the parallel arranged conductors is larger than the diameter of the other conductors.The second feature is that the conductor with a large diameter on the outside A plurality of conductors arranged in parallel and a composite insulating film of a polyvinyl chloride film and a polyester film are supplied to a heat forming roll, and the polyvinyl chloride film is melted by a hot jet and the above heat forming roll, and the plurality of conductors are A method of manufacturing jumper wires is provided by embedding a conductor in a polyvinyl chloride film.

(Example) Fig. 1 shows a top view of the jumper wire of the present invention (P) and a sectional view (+:0) of Fig. 1. In the drawing, (
1) is a plurality of conductors arranged in parallel, the diameter of the outer conductor GO is thicker than the inner conductor q21, for example, the outer conductor GD is AGW2[1, the inner conductor +121 is /1G
211 is used. ■ is an insulating film with a thickness of 1
A polyester film (21) of 6 μm and a thickness of e.g.
It is composed of a composite film in which 00 μm polyvinyl chloride films (22) are laminated, and the plurality of conductors (
1) is embedded in a polyvinyl chloride film (22).

FIG. 2 shows a diagrammatic explanatory view showing a method of manufacturing the above-mentioned jumper wire. As mentioned above, the outer conductor GO and the inner conductor 025 have different diameters and different tensile strengths, so it is necessary to control the tension separately. As shown in Fig. 1, they are arranged in parallel and sent to the heated forming rolls (A).

On the other hand, the insulating film (2), which is made by laminating two polyester films (22) and a polyvinyl chloride film (22), is sent to the heat-forming roll (1) so that the polyvinyl chloride film (22) surface is in contact with the conductor (1). This heating forming roll (4 has a surface temperature of approximately 150°C, and the polyvinyl chloride film (22) is melted by the hot air supplied by this heating forming roll (2) and hot jet 2), and the polyvinyl chloride film (22) is The conductor (1) is embedded in a polyvinyl chloride film (22).Subsequently, it is taken up by a pinch roll (2) and wound up by a winding device (2) to obtain a jumper wire as shown in FIG.

(Effects of the Invention) According to the above-described jumper wire of the present invention, among the plurality of conductors arranged in parallel, the diameter of the outer conductor is larger, so it serves as reinforcement against bending, twisting, etc. applied to the jumper wire, and prevents disconnection. It has a preventive effect. Also, since only the diameter of the outer conductor is increased, the flexibility of the jumper wire is not impaired in any way.

[Brief explanation of the drawing]

FIG. 1 shows a top view (A) of the jumper wire of the present invention and a cross-sectional view taken along line XX of FIG. 1, and FIG. 2 shows a diagrammatic explanatory diagram of the manufacturing method of the present invention. DESCRIPTION OF SYMBOLS 1... Conductor, 11... Outer conductor, 12... Inner conductor, 2... Insulating film, 21... Polyester film, 22... Polyvinyl chloride film, 3...
・Conductor alignment guide, 4...heat forming roll, 5...
hot jet. Figure 1

Claims (3)

[Claims] (1) A jumper wire in which a large number of conductors are arranged in parallel in an insulating film, wherein the diameter of the outer conductor among the conductors arranged in parallel is larger than the diameter of the other conductors. wire. (2) The jumper wire according to claim 1, wherein the insulating film is made of a composite film of a polyvinyl chloride film and a polyester film. (3) A plurality of conductors arranged in parallel with a large diameter conductor on the outside and a composite insulating film of polyvinyl chloride film and polyester film are supplied to a heat forming roll, and a hot jet and the above heat forming roll are used to form a polyester. A method for manufacturing a jumper wire, comprising melting a vinyl chloride film and embedding the plurality of conductors in the polyvinyl chloride film.