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Wires and wire harnesses with terminals

A technology of electric wires and terminals, which is applied in the field of electric wires and wire harnesses with terminals, can solve problems such as corrosion, and achieve the effects of easy anti-corrosion performance, maintaining anti-corrosion performance and high flexibility

Active Publication Date: 2020-11-20
AUTONETWORKS TECH LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, corrosion between dissimilar metals tends to become a problem at the electrical connection portion where the aluminum-based metal and the copper-based metal or the tin-plated layer are in contact.

Method used

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  • Wires and wire harnesses with terminals
  • Wires and wire harnesses with terminals
  • Wires and wire harnesses with terminals

Examples

Experimental program
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Effect test

preparation example Construction

[0081] The preparation of the composition for electric wire covering materials was performed by mixing the above-mentioned components at 180°C. Next, the obtained polyvinyl chloride composition was extrusion-coated to a thickness of 0.28 mm around a conductor (with a cross-sectional area of ​​0.75 mm) composed of an aluminum alloy twisted wire obtained by twisting seven aluminum alloy wires. From this a wire is made.

[0082] After peeling the end of the electric wire produced as above to expose the wire conductor, squeeze and crimp the female crimping terminal part to the end of the electric wire. The crimping terminal part is made of tin-plated brass commonly used for automobile constitute.

[0083] Next, an electric wire with a terminal was fabricated using the above-mentioned electric wire. First, an anticorrosive composition constituting the resin coating portion is prepared. That is, DINP as a plasticizer is mixed with the polyester-based thermoplastic elastomer. The...

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Abstract

To provide an electric wire with a terminal and a wire harness. The electrical connection part between the terminal part and the electric wire is covered with a resin coating part, and even if a special structure is not used, it is possible to suppress the transfer of the plasticizer contained in the wire coating to the resin. The transfer of the covering portion causes the wire covering to break. In the electric wire (1) with terminal, the terminal part (5) and the electric wire (2) covered with the wire covering member (4) on the outer periphery of the conductor (3) are electrically connected at the electric connection part (6). The resin covering part (7) covered by the electrical connection part (6) and in contact with the wire covering part (4), wherein the wire covering part (4) is made of polychloride with a degree of polymerization of 3000 or less containing a plasticizer Ethylene is the main component, and the resin coating part (7) contains a polymer component and a plasticizer. and b parts by mass, the plasticizer ratio specified by b / a is set to 0.1 or more.

Description

technical field [0001] The present invention relates to an electric wire with a terminal and a wire harness. More specifically, it relates to an electric wire with a terminal having an anticorrosion resin coating portion on an electrical connection portion between a conductor and a terminal component, and a wire harness using the electric wire with a terminal. Background technique [0002] Terminal parts are connected to conductors at the ends of electric wires laid in vehicles such as automobiles. In this case, it is required to prevent corrosion at the electrical connection portion where the terminal component and the conductor of the electric wire are electrically connected. In particular, when different metal materials are in contact with each other at the electrical connection part, corrosion between dissimilar metals may occur. In electric wires used in vehicles, for the purpose of reducing the weight of vehicles, etc., aluminum or aluminum alloys are sometimes used a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R13/533H01B7/28
CPCH01R13/533H01B7/2806H01R2201/26H01R4/185H01R13/5216H01R4/187H02G3/04H01R43/048H01R4/625
Inventor 山下卓也中村哲也山野能章小野纯一伊藤贵章
Owner AUTONETWORKS TECH LTD