Contact unit for a switch

Details Contact unit for a switch Contact unit for a switch

1994-07-18

1995-09-05

Recla, Henry J.

Electricity: circuit makers and breakers

Solid contact

Push button operated

200535, 200275, H01H 114

Patent

active

054480329

ABSTRACT:
A contact unit for a switch comprises: a wafer comprising a first terminal, a second terminal separated from the first terminal, and a fixed contact having the shape of a spring metal clip and electrically connected to the first terminal; an elastic movable contact electrically connected to the second terminal and capable of being brought into contact with the fixed contact; and an actuator for applying pressure to the elastic movable contact to bring the elastic movable contact into contact with the fixed contact. The second terminal is a portion of a spring metal frame, and the elastic movable contact is formed by bending a portion of the same spring metal frame. The first terminal, the second terminal, the fixed contact and the elastic movable contact are combined by insert molding to form the integral contact unit. Thus, the elastic movable contact is never disconnected from the second terminal, the contact unit is highly reliable and the contact unit can be readily applied to various kinds of switches.

REFERENCES:
patent: 3916131 (1975-10-01), Golbeck et al.
patent: 3920943 (1975-11-01), Lapointe
patent: 4027129 (1977-05-01), Sato
patent: 4684775 (1987-08-01), Oba
patent: 4698465 (1987-10-01), Oba
patent: 4789764 (1988-12-01), Doros
patent: 4937407 (1990-06-01), Osika

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