Title:
CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2020/121393
Kind Code:
A1
Abstract:
The present invention provides a circuit breaker that prevents a molten metal, which is generated at a time of arc extinction and adheres to a crossbar, from entering a mechanism part during a blocking operation of the crossbar by providing a groove in the crossbar. The circuit breaker (100) of the present invention comprises: a stationary contact conductor (5) to which a stationary contact (4) is fixed; a movable contact conductor (7) to which a movable contact (6) detachable from the stationary contact (4) is fixed; an arc-extinguishing chamber (17) that extinguishes an arc generated when the stationary contact (4) and the movable contact (6) are separated from each other; a crossbar 81 that has a groove (8a) in a surface facing the arc-extinguishing chamber (17); and a mechanism that drives the crossbar (81) such that the stationary contact (4) and the movable contact (6) are separated from each other.
Inventors:
CHIGUSA SHINICHI (JP)
Application Number:
PCT/JP2018/045415
Publication Date:
June 18, 2020
Filing Date:
December 11, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H01H71/12
Foreign References:
| JPS61104956U | 1986-07-03 | |||
| JP2012186065A | 2012-09-27 | |||
| JP2016184516A | 2016-10-20 |
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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