JPH0815099B2 - Twisting connection method of flat cable - Google Patents

Description

The present invention relates to a flat cable connecting method.

[Conventional technology]

As shown in FIG. 5, the flat cable is a cable in which a plurality of conductors (stranded wires) 10 are arranged in a flat shape and covered with an insulator 11 and a sheath 12, and a bundled wire can be omitted by flattening the wire material. The packaging density can be improved. There is little concern about incorrect wiring, maintenance and inspection are easy, and it is flexible and easy to wire.
The number of terminal processing steps can be reduced. It has advantages such as easy handling of cable cutting and automation of connector installation, etc. Furthermore, since the center-to-center distance between adjacent cables is smaller than that of a round cable, one phase of a flat cable is stacked for the number of phases. It has been widely used as a low-impedance cable line with little voltage drop.

[Problems to be Solved by the Invention]

However, since this cable is flat, it is bendable. That is, the bending in the thickness direction is easy, but it is difficult to bend in the width direction. For example, when the direction is changed at a right angle, the cable 1 is once twisted in the thickness direction and twisted again as shown in FIG. It needs to be flat.

Although it depends on the size of the cable, the length L required for twisting requires a considerable length (for example, about 2 to 3 m).

For this reason, even a high-performance cable may not be used for a route with a short straight portion and many bends.

An object of the present invention is to solve the above-mentioned drawbacks and to provide a twisted connection method for a flat cable which can be easily attached even in a narrow space.

[Means for solving the problem]

The gist of the present invention is to connect flat cables in different directions by using a connection terminal of a compression sleeve having a twisted portion in order to shorten the twist length.

That is, the present invention is characterized in that the flat type cables in different directions are connected to each other by using the connection terminal of the compression type sleeve in which the twist is applied on the axis line, which is manufactured in advance, in the portion where the flat type cables need to be twisted. This is achieved by the twisted connection method of flat cables.

In the present invention, the term "compression-type sleeve connection terminal having a twist on the axis" means not only a flat cable having a flat surface twisted vertically but also a flat cable as shown in FIG. Includes connection terminals that can be bent in any direction, such as those that can be bent by ∠90 °.

[Action]

The present invention is based on separately manufacturing and using a connecting terminal of a compression sleeve twisted on the axis, that is, by forming a compression sleeve bend of a flat conductor and applying an insulating coating and a sheath on it. Since the connection terminal of the compression sleeve of the flat conductor is formed and then subjected to the heat treatment after being bent, the connection terminal is manufactured by the method of removing the strain, the connection terminal having a very small curvature can be manufactured. Therefore, by using this, it is not necessary to twist the flat cable itself, and the direction can be easily changed even in a narrow place.

〔Example〕

One embodiment of the present invention is shown in FIGS. 1 and 4 (a). However, the present invention is not limited to this embodiment. FIG. 2 (a) is a front view of one embodiment of the compression sleeve connection terminal,
The left end shows the compression sleeve connection terminal 4 used in the present invention in which the twisted wire insertion hole 2 of the compression sleeve is arranged in the lateral direction (Fig. B) and in the vertical direction (Fig. C). Insert the conductor of the flat cable 1 into the stranded wire insertion holes of the compression sleeves on both sides of 4, and compress it to connect the flat cable 1 in a state twisted from side to side as shown in FIG. Therefore, the twist length l can be greatly shortened compared to the conventional length L for twisting the cable body. The flat cable 1 is the second
Of course, after connecting to the connection terminal 4 in the figure, the outer surface is insulated by the insulating layer 3 after connecting the cable as shown in FIG.

FIG. 3 is an example showing a front view (a) and a side view (b) of one embodiment of the connection terminal 5 used in the portion where the cable is bent.

The above is the method of twisting one cable, but FIG. 4 (a) is a front view (a) of another embodiment of the present invention using a compression sleeve that twists the three-phase flat cable 9 together. 4B is an exploded perspective view of the twisted compression type sleeve connection terminal used in FIG. Middle phase (S
The phase) uses the same connection terminals 7 as in FIG. 2A, and the outer phases (R) and (T) are the respective connection terminals 6 and 8 which are molded around the S phase.

〔The invention's effect〕

By the method of the present invention, the length of twisting the flat cable is extremely shortened, and it is possible to freely twist and change the direction.
It was easy to attach a flat cable, and at the same time, it was possible to avoid interference with other equipment. Since all equipment including electric equipment can be compactly housed, the building can be effectively used and the economic merit is increased.

The embodiment of FIG. 4 (a) shows that a plurality of cables can be twisted at the same place, and the size can be further reduced.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention using the connection terminal of the compression sleeve of FIG. Fig. 4 (a) is Fig. 4 (b).
The front view, FIG. 2, FIG. 3, FIG. 4 (b) of another embodiment of the present invention using the connection terminal of the compression sleeve of the three-phase flat cable of FIG. A front view, a side view, or a perspective view of one embodiment of the connection terminal, FIG. 5 is a cross-sectional view of a flat cable according to the present invention, and FIG. 6 is a perspective view illustrating an example of a bent portion of a conventional flat cable. Is. 1 ... Flat cable, 2 ... Stranded wire insertion hole of compression sleeve, 3 ... Insulation layer of connection part, 4,5,6,7,8 ... Connection terminal, 9 ... 3-phase flat cable, 10 …… conductor, 11 …… insulator, 12 …… sheath.

Claims (1)

[Claims] 1. The flat type cables are connected to each other in different directions by using a connection terminal of a compression type sleeve, which is separately manufactured in advance and twisted on an axis, at a portion of the flat type cable where twisting is required. Twist connection method for flat cable.