JPH1153959A - Light-to-metal composite flat cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flat cable, capable of easily discriminating wire number in addition to being capable of easily conducting high density mounting, wiring in a narrow space, and wire branching in a light-to-metal composite flat cable in which an optical fiber strand for a signal and a power source or wiring of a metal conductor wire for a signal can be made in one-time wiring. SOLUTION: In the case of a first flat cable 1, an optical fiber strand 2 for a signal and a power source or a metal conductor wire 3 for a signal are covered with a thermoplastic resin insulator 4, a plural numbers of them are arranged in a row at constant pitch in an arbitrary order, all insulators 4 in the length direction are melted to make them flat. As a second cable the first insulator 4 is repeated at constant intervals a separating part and a melting part in the length direction to form the light-to-metal composite flat cable 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical / metal composite flat cable which requires only a single wiring between an optical fiber for signal and a metal conductor for power supply or signal. The present invention relates to an optical / metal composite flat cable 1 that not only facilitates wiring and branch wiring in a narrow space, but also facilitates identification of wire numbers.

[0002]

Conventionally, it has been necessary to prepare an optical fiber for signal and a metal conductor for power supply or signal and wire them separately. At present, the optical fiber ribbon is usually made of a UV curable resin, and is only available on the market up to about eight cores. Must be wired. Further, when the optical fiber ribbon is branched on the way, it is necessary to peel off the UV-cured resin as the integrated tape material, which is disadvantageous in that the processing is difficult. In addition, since the stripped portions become individual optical fiber wires, branching is difficult and there is a risk of disconnection accident after branching. In addition, power savings have been progressing year by year along with higher performance, smaller size and higher density for devices that require a power source, and power lines can be applied even with small diameters such as AWG # 28 and # 30 wires. It has become possible.

[0003]

An optical / metal composite flat cable 1 according to the present invention solves the above-mentioned disadvantages.
Applying conventional metal flattening technology to optical fiber,
Optical fiber coated with a thermoplastic insulator that enables multi-core optical fiber for signal and metal conductor for power or signal
A metal composite flat cable 1 structure is adopted.

[0004]

A multi-fiber flat cable of an optical fiber is manufactured by adopting a composite flat cable structure in which an optical fiber for signal and a metal conductor for power supply or signal are covered with a thermoplastic insulator. Not only can you do
High-density mounting becomes possible, and signal wiring and power supply or signal wiring can be performed with a single wiring. Further, since the flat cable is separated one by one from the sled portion (separation portion), branching is easy, and the wire number can be recognized at a glance by the flat portion.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the optical / metal composite flat cable according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a sectional view of an optical / metal composite flat cable 1 according to the present invention. FIG. 2 is a perspective view of a first embodiment of the optical / metal composite flat cable 1 according to the present invention. As is apparent from the figure, the first aspect of the present invention is that the optical fiber 2 for signal and the metal conductor 3 for power or signal are used.
Are covered with a thermoplastic resin insulator 4, and a plurality of them are aligned at a constant pitch in an arbitrary order to form a lengthwise insulator 4.
Is an optical / metal composite flat cable 1 which is made entirely of fused parts and flattened. Second,
The first insulator 4 is the optical / metal composite flat cable 1 composed of a repetition of a separation portion and a fusion portion at a constant interval in the length direction. As described above, by applying the conventional metal flattening technology to the optical fiber, a multi-core flat cable can be realized. Specific examples of the present invention are as follows. As is apparent from the figure, the optical fiber PVC core is 50 cores at the center and 7 / 0.1 at both ends.
(AWG # 30) An optical / metal composite flat cable 1 having a total of 52 cores composed of two soft-core PVC cores and a narrow pitch of 0.635 mm was manufactured. A typical soft copper wire is used as the metal conductor wire 3 for the power supply or the signal, and a typical P is used as the thermoplastic resin insulator 4.
VC resin was used. In this case, a structure may be adopted in which all the adjacent insulators 4 are fused by a roll or the like, or a Sudare type structure in which a fusion portion and a separation portion are repeated in the length direction of the cable. I do not care. The advantage of the slender type structure is that there is no need to peel off the insulator at the time of branching, and branching is easy. FIG. 3 is a basic configuration diagram of a second embodiment of the optical / metal composite flat cable 1 of the present invention. As is apparent from the drawing, the second embodiment of the present invention is different from the first embodiment in which adjacent insulators are fused by a roll or the like.
This is an optical / metal composite flat cable 1 in which individual optical fiber wires 2 are provided with a fused portion by a film 7. Thereby, the optical / metal composite flat cable 1 of the present invention
A cable having a diameter substantially equal to that of a conventional flat cable could be obtained.

In the embodiment of the present invention, as an example of a method of arranging soft copper wires at both ends and forming an insulator, thermal fusion using a roll and fusion using a film 7 have been described as typical examples. I do not care. In addition to the core wire identification method of the present invention, identification may be performed for each core wire so that the wire number can be known at a glance. As described above, it goes without saying that various modifications are included in the design within the scope of the present invention. The flat cable of the present invention may be formed into a round or square shape, covered with a sheath, and used for external wiring.

[0007]

As is clear from the above description, according to the optical / metal composite flat cable 1 of the present invention, Wiring of optical fiber for signal and metal conductor wire for power supply or signal is possible with one wiring. . Because the multiple cores are arranged at a narrow pitch, wiring with a narrow space and high-density mounting is possible. . Line numbers are easy to identify by the alignment part, and branch wiring is easy by the slender part. Therefore, its industrial value is great.

[Brief description of the drawings]

FIG. 1 is a sectional view of an optical / metal composite flat cable 1 according to the present invention.

FIG. 2 is a perspective view of a first embodiment of the optical / metal composite flat cable 1 of the present invention.

FIG. 3 is a basic configuration diagram of a second embodiment of the optical / metal composite flat cable 1 of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 The optical / metal composite flat cable of this invention 2 Optical fiber wire 3 Metal conductor wire 4 Insulator 5 Optical connector 6 Crimping or soldering connector 7 Film

Claims (2)

[Claims] 1. A signal optical fiber 2 and a power supply or signal metal conductor 3 are covered with a thermoplastic resin insulator 4, and a plurality of them are arranged at a constant pitch in an arbitrary order. An optical / metal composite flat cable 1 characterized in that all of the insulators 4 in the length direction are made of a fused portion and flattened. 2. The optical / metal composite flat cable 1 according to claim 1, wherein the insulator 4 comprises a separation portion and a fusion portion repeated at a constant interval in the length direction.