Switch device having self-cleaning function

Details Switch device having self-cleaning function Switch device having self-cleaning function

2005-01-18

2005-01-18

Lee, Kyung (Department: 2832)

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

C200S457000, C200S341000

Reexamination Certificate

active

06844509

ABSTRACT:
A switch device that prevents a contact failure from occurring between electrode contact points by having a self-cleaning function is provided. When a key top4is pushed downward, a portion between a winding start end7band a winding terminal end7cof a spiral contactor7is extended by an operation part3B provided in an actuator3. At this time, the winding start end7cslides along the surface of a stationary electrode5. As a result, dusts or stains attached to the winding terminal end7cand/or the stationary electrode5, oxide films formed on the surfaces of the electrodes, etc., is self-cleaned. Therefore, it is possible to solve a contact failure problem between the movable electrode6and the stationary electrode5.

REFERENCES:
patent: 3968336 (1976-07-01), Johnson
patent: 6517362 (2003-02-01), Hirai et al.

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