JPS5838969Y2 - Flat cable for one-touch connector - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a flat cable for a one-touch connector.

Conventionally, vinyl chloride, flame-retardant polyethylene, fluororesin, etc. have been used as insulators for flat cables for one-touch connectors.

However, the hardness of the insulator is soft Shore D45~55
In the case of vinyl chloride or flame-retardant polyethylene, the strands of the conductor tend to collapse when mated with a one-touch connector, resulting in poor connection reliability.

On the other hand, when the insulator is made of a fluororesin having a hard hardness of 237,960 or more, the reliability of fitting with the one-touch connector is good, but the cable as a whole is hard and the wiring work is poor.

The present invention has been made for the purpose of eliminating the drawbacks of the conventional technology described above and providing an excellent flat cable for one-touch connectors that has excellent connection reliability with one-touch connectors and is easy to wire. The gist is that the hardness of the conductor and its outer periphery is 23796.
A flat cable for a one-touch connector is characterized by comprising an internal insulator having a hardness of 0 or more, and an external insulator provided on the outer periphery and having a hardness of 60 or less Shore.

This will be further explained with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the cable of the present invention, in which 1 is a stranded conductor, 2 is an internal insulator provided on its outer periphery, and 3 is an external insulator provided on its outer periphery.

The stranded conductor 1 generally has a conductor size of 30 to 2.
Seven strands of 4AWG are used.

As the inner insulator 2, a fluororesin insulator having a hardness of about 60 to 80 Shore D is used, and as the outer insulator 3, vinyl chloride or the like is used, having a hardness of about 45 to 56 Shore D.

Figure 2 shows the situation where the one-touch connector 4 is fitted to this cable.Since the stranded wires 1 are suppressed by the internal insulator 2, the stranded wires 1 do not collapse, resulting in a highly reliable connection. You can get sex.

Further, the cable as a whole is soft due to the presence of the soft external insulator 3, and therefore wiring work is easy.

The internal insulator 2 needs to prevent the stranded wires 1 from collapsing and maintain the flexibility of the entire cable, and its range is 0.1 to Q, with a preferable thickness of 2 mm. Figure 3 shows conventional vinyl chloride. This shows a situation in which a one-touch connector 4 is fitted to a flat cable with insulation 3. The stranded wire conductor 1 is fitted due to the fitting force of the one-touch connector 4, and therefore the reliability of the connection is poor.

As a result of measuring the contact resistance of this example cable and the conventional cable after mating with a one-touch connector and after being left at a high temperature of 100°C for 1,000 hours after mating, the contact resistance was 1 m and Q or less in both cases at the initial stage of mating. The resistance in this example was 2m, Q or less, and there was almost no change, but in the conventional example, it changed to about 15m47, which clearly shows that the reliability of the connection of this example cable is high. It became.

The present invention consists of a flat cable whose cross-sectional shape is continuous in the length direction of the cable, a flat cable whose cross-sectional shape is continuous in the length direction of the cable, a flat cable whose cross-sectional shape is present at predetermined intervals along the cable length, and a flat cable whose cross-sectional shape is continuous in the length direction of the cable, and a flat cable whose cross-sectional shape is continuous in the length direction of the cable. This applies to existing types of flat cables.

As explained above, according to the present invention, it is possible to provide a flat cable for a one-touch connector that has excellent connection reliability and easy wiring work, and has great practical value.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional explanatory diagram showing an embodiment of the cable of the present invention, Fig. 2 is a cross-sectional explanatory diagram showing a situation where a one-touch connector is fitted to the cable, and Fig. 3 is a conventional flat cable with a one-touch connector. FIG. 1: Stranded conductor, 2: Internal insulator, 3: External insulator, 4:
One-touch connector.

Claims (1)

[Scope of utility model registration request] A flat cable for a one-touch connector, comprising a conductor, an internal insulator with a hardness of 237,960 or more provided on the outer periphery, and an external insulator with a hardness of Shore 60 or less provided on the outer periphery. .