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Terminal plating materials and terminals, wires equipped with terminals, and wire harnesses using the wires

一种端子镀层、镀层的技术，应用在连接装置的零部件、电路、耦合装置等方向，能够解决耐热性不是非常高、锡镀层劣化、锡镀层电阻高等问题

Active Publication Date: 2019-11-15
YAZAKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the tin plating typically used in gasoline vehicles has high electrical resistance, so it tends to generate heat
In addition, since the heat resistance is not very high, there is a concern that the tin plating may be deteriorated due to the heat

Method used

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  • Terminal plating materials and terminals, wires equipped with terminals, and wire harnesses using the wires
  • Terminal plating materials and terminals, wires equipped with terminals, and wire harnesses using the wires
  • Terminal plating materials and terminals, wires equipped with terminals, and wire harnesses using the wires

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Embodiment

[0070] Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples.

[0071] First, a pretreatment of the metal substrate as the material to be plated is carried out. Specifically, the metal substrate was cleaned by alkali degreasing, and immersed in 10% sulfuric acid for 2 minutes for acid leaching, followed by cleaning with water. For the metal base, a C1020-H copper plate specified in JIS H3100:2012 (copper and copper alloy sheets, plates, and strips) was used.

[0072] Next, a nickel plating layer is formed on the surface of the metal substrate. Specifically, the pretreated metal substrate was immersed in the plating bath for nickel plating, and a DC stabilized power supply was used at 5A / dm 2 Under the conditions of the current density, the electrolysis time of 30 seconds, and the plating bath temperature of 55°C, it was subjected to constant current e...

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Abstract

The terminal plating material (1) includes a metal base (2), and a silver-tin alloy plating layer (3) containing silver-tin alloy arranged on the metal base (2). The silver-tin alloy coating (3) contains an intermetallic compound of silver and tin, the Vickers hardness of the surface of the silver-tin alloy coating (3) in the terminal coating material (1) is 250Hv or more, and the surface of the silver-tin alloy coating (3) is rough The degree is below 0.60μmRa. Furthermore, the terminal (10) is formed of the terminal plating material (1). A terminal-fitted wire (20) includes a terminal (10). A wire harness (40) includes wires (20) fitted with terminals.

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims the benefit of Japanese Patent Application No. 2017-010170 filed on January 24, 2017, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a terminal plating material, as well as a terminal, a terminal-equipped electric wire, and a wire harness using the terminal-equipped electric wire. More particularly, the present invention relates to a terminal plating material, and a terminal, a terminal-fitted wire, and a wire harness using the terminal-fitted wire, which have high abrasion resistance while minimizing an increase in contact resistance. Background technique [0004] In recent years, demands for hybrid vehicles and electric vehicles have increased, and high current flows through terminals of charging connectors used in these vehicles. [0005] However, the tin plating generally used in gasoline vehicles ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R13/03C25D3/64C25D5/12
CPCC25D3/64C25D5/12H01R13/035C25D5/611C25D7/00C25D3/12C25D3/46H01R13/03C22C5/06H01R4/184C25D7/0607
Inventor 田村畅之池谷隼人加山忍
Owner YAZAKI CORP