OPERATING MECHANISM OF 2P2 MODULUS ELECTROMAGNETIC RESIDUAL CURRENT CIRCUIT BREAKER WITH OVERCURRENT PROTECTION

WIPO Patent Application WO/2022/205757

A1

The present invention relates to an operating mechanism of a 2P2 modulus electromagnetic residual current circuit breaker with overcurrent protection, comprising a handle, a link and a contact lever and characterized in that: a first hinge linkage shaft is provided in the middle of the contact lever; a first lock and a second lock are linked with the contact lever; a relative linkage structure is provided between the first lock and the second lock; the other end of the contact lever relative to the link is provided with a second hinge linkage shaft; a first movable contact and a second movable contact are linked with the contact lever; and a second hinge linkage shaft sleeve is provided with a first reset spring and a second reset spring. The beneficial effect of the present invention is: provided is an operating mechanism of a 2P2 modulus electromagnetic residual current circuit breaker with overcurrent protection, such that a single handle can control a multi-phase circuit breaker, the structure is simplified, the overall structure complexity of the circuit breaker is reduced, the number of parts is reduced, cost is reduced, and processing and assembling are convenient.

LIU FENG (CN)

PCT/CN2021/114977

October 06, 2022

August 27, 2021

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ETMAN ELECTRIC CHANGZHOU CO LTD (CN)

H01H71/10

CN112967912A	2021-06-15
CN112951665A	2021-06-11
CN214542094U	2021-10-29
CN202434448U	2012-09-12
CN111293009A	2020-06-16
US6614334B1	2003-09-02

WENZHOU OUYUE PATENT AGENTS CO., LTD (CN)

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