Material for electric contacts

Details Material for electric contacts Material for electric contacts

H - Electricity

01

R

339/115, 306/349

H01R 13/03 (2006.01)

Patent

CA 1256924

59-139,499 MATERIAL FOR ELECTRIC CONTACTS Abstract A material for forming contacts for use in connectors, switches and the like for electronic appliances. The material comprises a first metal layer having a conductivity, a second metal layer having a springiness and a plastic layer interposed between these metal layers. With this arrangement, the two metal layers take charge of the conductivity and the springiness, respectively, so that the contacts according to the invention are small-sized and inexpensive in comparison with prior art contacts made of copper alloys under the same current capacity and contact pressure. Moreover, the contacts according to the invention can eliminate disadvantages of the prior art contacts made of two directly contacted metals, such as separation between them due to difference in coefficient of thermal expansion and elongation, deterioration of the contacts due to diffusion therebetween, and disintegration of the contacts due to electrochemical corrosion resulting from difference in electric potential between two metals. - 15 -

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