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Terminal and its aluminum wire connection structure

A technology of aluminum wires and terminals, which is applied in the direction of conductive connection, electrical component connection, connection, etc., can solve the problems of easy deepening of corrosion and easy occurrence of corrosion, and achieve the effect of inhibiting corrosion

Active Publication Date: 2019-06-11
SUMITOMO WIRING SYST LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Corrosion is likely to occur due to the contact of the dissimilar metals, especially when the contact parts of the dissimilar metals are splashed with deicing agent, battery electrolyte, rainwater, or washing water, the corrosion is likely to deepen

Method used

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  • Terminal and its aluminum wire connection structure
  • Terminal and its aluminum wire connection structure
  • Terminal and its aluminum wire connection structure

Examples

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Embodiment Construction

[0048] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0049] Figure 1 to Figure 4 Terminals of the reference embodiment are shown.

[0050] The terminals consist of screw fastening terminals 1, such as figure 1 As shown, it is connected to the end of an aluminum electric wire 2 obtained by covering an aluminum core wire 3 obtained by twisting an aluminum-based metal wire 3s with an insulating coating 4 made of insulating resin. The aluminum electric wire 2 of this reference embodiment is that the cross-sectional area of ​​the aluminum core wire 3 is 8mm 2 The above-mentioned thick electric wires are arranged in automobiles as power lines or grounding lines.

[0051] The screw fastening terminal 1 is provided with an electrical contact portion 5 at the front and with a wire connection portion 6 at the rear. Specifically, the front portion of the substrate 7 extending in the front-rear direction is formed wide to form ...

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Abstract

Prevents or suppresses corrosion at the contact portion between aluminum wires and copper-based metal plate-based terminals. The terminal is a bolt-fastening terminal connected to an electric wire having an aluminum core wire made of aluminum-based metal, and has a wire connection part made of a copper-based metal member, which is continuous with an electrical contact part provided with a bolt hole, and passes through Welding is electrically connected to the aluminum core wire. The surface of the wire connection part is covered with a first metal such as nickel, and the surface of the electrical contact part is covered with a second metal such as tin. The surface of the wire connection part is made of different metals. The first metal and the second metal are selected from metals between aluminum and hydrogen, which have a side potential based on the hydrogen potential and have a large ionization tendency, and the second metal has a smaller potential than the first metal. And metals with small ion tendencies.

Description

technical field [0001] The present invention relates to a terminal and an aluminum electric wire connection structure of the terminal, and is especially suitable for connecting an aluminum electric wire provided with a core wire made of an aluminum-based metal to a terminal formed by processing a copper-based metal plate, and fastening it to a terminal with a bolt. The terminal of the opposite conductive part. Background technique [0002] In recent years, there has been a tendency to use aluminum electric wires, which have the advantages of light weight and low cost, as electric wires installed in automobiles instead of general-purpose copper electric wires. In an aluminum electric wire, a wire made of an aluminum-based metal is twisted to form a core wire, and the core wire is covered with an insulating coating made of an insulating resin. [0003] On the other hand, terminals are connected to the electric wires for electrical connection with bus bars, terminals, groundin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R4/62H01R4/02H01R4/34H01R11/12H01R13/03
CPCH01R4/029H01R4/625H01R43/0207H01R13/03H01R4/187H01R11/12H01R4/184H01R4/34
Inventor 大庭卓也
Owner SUMITOMO WIRING SYST LTD
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