Electrical contact element with cover layer having chemical reducing agent, electrical contact arrangement and methods for manufacturing electrical contact element and for reducing oxidization of contact section of electrical contact element

Abstract

The invention relates to an electrical contact element (1, 1', 15), an electrical contact arrangement (14) and methods for manufacturing an electrical contact element (1, 1', 15) and for reducing oxidization of a contact section (C, C') of an electrical contact element (1, 1', 15). In order to avoid that the durability of the contact element (1, 1', 15) and therefore of the contact arrangement (14) is negatively influenced by growing oxide layers on contact surfaces (4, 4'), the contact element (1, 1', 15) is provided with a cover layer (2, 2') with a chemical reducing agent (5) that can be activated by frictional forces.

Description

technical field [0001] The invention relates to an electrical contact element with a covering layer arranged at least on a contact portion of the contact element, the covering layer being electrically conductive. Furthermore, the invention relates to an electrical contact arrangement with at least one electrical contact element and at least one counter contact element of the electrical contact element, the counter contact element being adapted for mechanical contact with a contact portion of the electrical contact element. Furthermore, the invention relates to a method for producing an electrical contact element by adding a cover layer, and to a method for reducing oxidation of the contacts of the electrical contact element. Background technique [0002] Electrical contact elements are widely used to provide electrical connection to opposing contact elements. The contact elements can be plug or switch contact elements. The movement of the contact element and / or the counter...

AI Technical Summary

Problems solved by technology

This can lead to failure of the electrical connection between the contact element and the counter contact element

[0003] Even if the contact does not move in the above way, the contact part can be broken

Especially vibrations and movements caused by prolonged heating can lead to damage of the contact surfaces

[0004] As such, the durability of the contact elements and electrical contact arrangements may be limited due to the reduction in electrical conductivity caused by the thickness of the grown oxide layer

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