Contact of relay

Abstract

The invention discloses a contact of a relay. The contact comprises a copper substrate and an outer cladding layer plated outside of the copper substrate, and is characterized in that the components of the outer cladding layer comprise silver oxide and metal oxide; the weight ratio of the silver oxide to the metal oxide is (96-102):1; and the metal oxide comprises at least three of tin oxide, lanthanum oxide, cerium oxide, zirconium oxide, bismuth oxide and ytterbium oxide. The contact of the relay has the advantages that the metal oxide of certain proportion is added to the main component, namely, the silver oxide, of the outer cladding layer so that the contact is reduced in thickness of the outer cladding layer in comparison with the traditional composite contact on the premise that the relay using the composite contact reaches the equal electric service life; the material cost of the contact is reduced by about 50%; and the cost performance of the contact is greatly increased.

Description

technical field [0001] The invention relates to a relay, in particular to a contact of the relay. Background technique [0002] With the development of society, the use of relays has become more and more extensive, and there are more and more types, with different functions and structures. The contact of the relay is the most important part of the relay. At present, the contacts used in the relay generally include pure contacts and composite contacts. The relays using pure contacts have a longer electrical life but the cost of the contacts is expensive; composite contacts Compared with pure contacts, the material cost is lower, but the electrical life of relays using composite contacts is relatively low, and in order to ensure the electrical life of relays, the composite layer or plating layer in composite contacts is often thicker. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a relay contact that can furthe...

AI Technical Summary

Problems solved by technology

The contact of the relay is the most important part of the relay. At present, the contacts used in the relay generally include pure contacts and composite contacts. The relays using pure contacts have a longer electrical life but the cost of the contacts is expensive; composite contacts Compared with pure contacts, the material cost is low, but the electrical life of relays using composite contacts is relatively low, and in order to ensure the electrical life of relays, the composite layer or plating layer in composite contacts is often thicker

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