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Resin composition, sheath cable, and wire harness

A resin composition, resin technology, applied in the direction of insulated cables, flexible cables, cables, etc., can solve the problem of expensive silicone rubber, and achieve the effect of sufficient flexibility and wear resistance

Active Publication Date: 2020-09-29
YAZAKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, silicone rubber is expensive compared to insulating materials such as polyvinyl chloride, polypropylene and polyethylene used in the prior art

Method used

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  • Resin composition, sheath cable, and wire harness
  • Resin composition, sheath cable, and wire harness
  • Resin composition, sheath cable, and wire harness

Examples

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[0098] Hereinafter, the present embodiment will be described in more detail with reference to examples and comparative examples, but the present embodiment is not limited to these examples.

[0099] As a metal conductor, the cross-sectional area is 3.0mm 2 of pure copper conductors (strands). Then, the conductor was covered with a resin composition having the composition (unit: parts by mass) shown in Table 1 to manufacture a covered cable. At a temperature of about 140° C. to 180° C., the conductor is covered with an extruded covering device for cable manufacture with a helix diameter of 40 mm. The temperature of the melt-kneading of the resin composition and the temperature immediately after the resin leaves the extrusion covering device were about 140°C. The extrusion covering device was adjusted so that the thickness of the covering layer after covering was 0.65 mm as a standard. Cross-link the coated cable under the condition of 750kV to 950kV×140kGy to 200kGy.

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Abstract

A resin composition contains a resin component containing a copolymer of olefin and a comonomer having polarity and an ethylene-propylene-diene terpolymer. The resin component is cross-linked and thetensile stress at 19% strain is 2.0 MPa or less. The resin composition has a sea-island structure 1 in which the copolymer of olefin and a comonomer having polarity is the continuous phase 2, and theethylene-propylene-diene terpolymer is the dispersed phase 3.

Description

technical field [0001] The present invention relates to a resin composition, a covered cable, and a wire harness. Background technique [0002] In recent years, in order to increase the cruising distance of electric vehicles, increasing battery capacity has been studied. However, it is necessary to increase the conductor diameter of the cable that is a constituent part of the wire harness so that the charging time does not become longer as the battery capacity increases. On the other hand, since the volume of the battery tends to increase as the battery capacity increases, the ratio of the battery pack to the vehicle body increases. Therefore, the cables need to be designed such that they can be bent and routed in narrow and short paths. [0003] In narrow and short paths, silicone rubber cables with conductors insulated through flexible silicone rubber are often used. However, silicone rubber is expensive compared to insulating materials such as polyvinyl chloride, polyp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/16C08K13/02C08K3/22C08K5/06H01B7/04H01B7/18
CPCC08L23/0869C08L23/16H01B7/04H01B7/18C08L2203/202C08K13/02C08K3/2279C08K5/06C08L2205/22C08L2207/02C08L2312/06H01B7/0045
Inventor 泷皓宏
Owner YAZAKI CORP