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Terminal and aluminum wire connection structure of terminal

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

Active Publication Date: 2016-10-26
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 aluminum wire connection structure of terminal
  • Terminal and aluminum wire connection structure of terminal
  • Terminal and aluminum wire connection structure of terminal

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 first 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 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 the electrical...

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Abstract

An objective of the present invention is to avoid or alleviate corrosion of a contact part of an aluminum wire and a terminal which has a copper substrate as a base material. Provided is a bolt tightening terminal which connects to a wire comprising an aluminum core wire formed from an aluminum metal, said terminal comprising a wire connection part which is formed from a copper metal material and is continuous with an electrical contact part wherein a bolt hole is disposed, and to which the aluminum core wire is welded and electrically connected. 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 first and second metals which are formed from different metals are selected from metals having, with hydrogen potential as a reference, a minus-side potential between the potential of aluminum which has a large ionization tendency and the said hydrogen potential, and the second metal has a smaller minus potential and a smaller ionization tendency than the first metal.

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 Applications(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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