MINIATURE CIRCUIT BREAKER - ZHEJIANG CHINT ELECTRICS CO LTD

Title:

MINIATURE CIRCUIT BREAKER

Document Type and Number:

WIPO Patent Application WO/2020/135398

Kind Code:

A1

Abstract:

The present invention relates to the field of low-voltage electrical appliances, in particular to a miniature circuit breaker, comprising a circuit breaker housing, a button mechanism, an operating mechanism, a movable contact, and a static contact. The operating mechanism comprises a support member, a trip fastener, a lock fastener, and a trip lever. The trip lever comprises a trip lever connecting end and a trip lever driving end. When the miniature circuit breaker is in an open state, if the button mechanism is pressed, the operating mechanism is driven to operate, the operating mechanism drives the movable contact and the static contact to be closed, and the trip lever driving end moves to a position matched with the trip fastener; if the button mechanism is pressed again, the trip lever driving end of the trip lever drives the trip fastener to rotate to enable the trip fastener and the lock fastener to be released from the locking fit, the operating mechanism operates and drives the movable contact to be separated from the static contact, so that the miniature circuit breaker enters the opening state, and the trip lever is reset to an initial position at the same time. The opening/closing operation of the miniature circuit breaker can be achieved by pressing the button mechanism.

Inventors:

LU KEJUN (CN)
GU XIANGYI (CN)

Application Number:

PCT/CN2019/127814

Publication Date:

July 02, 2020

Filing Date:

December 24, 2019

Export Citation:

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Assignee:

ZHEJIANG CHINT ELECTRICS CO LTD (CN)

International Classes:

H01H71/10; H01H71/58

Foreign References:

CN109686625A	2019-04-26
CN209418445U	2019-09-20
CN207558725U	2018-06-29
CN204885043U	2015-12-16
US6480079B1	2002-11-12

Other References: