Power switch module

Details Power switch module Power switch module

1980-02-04

1981-09-22

Hix, L. T.

Electrical transmission or interconnection systems

Switching systems

Switch actuation

200 37A, 200 38BA, H01H 4304, H01H 4310

Patent

active

042912385

ABSTRACT:
A power switch module for use in controlled-sequence devices such as a domestic laundry appliance has switches arranged in a pattern about a central portion of the module selectively closeable to connect circuitry associated with each switch to a source of electric potential. Each switch has an associated actuator movable to open and close the switch, and each actuator is operated by a hammer having a striking surface for depressing an actuator to open a switch and a camming surface for raising an actuator to close a switch. The hammer is mounted for rotation on a shaft and is axially movable by a solenoid. A disc encoder on the shaft derives hammer-position information which is transmitted to a microprocessor which controls sequential operation of the device and energizes the solenoid to open or close a switch at appropriate times during operation.

REFERENCES:
patent: 1146889 (1915-07-01), Lundquist
patent: 3436696 (1969-04-01), Carlisle et al.
patent: 3657627 (1972-04-01), Inaba et al.

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