Title:
CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2023/138042
Kind Code:
A1
Abstract:
A circuit breaker, comprising a housing and at least two L-poles, wherein a leakage protection pole is arranged between the two L-poles, an electromagnetic coil of an electromagnetic system is arranged at a side of a third operation mechanism of the leakage protection pole, a connecting rod is rotatably assembled at a side of the electromagnetic coil, and the connecting rod connects the third operation mechanism and operation mechanisms of two adjacent L-poles in a linkage manner. When the circuit breaker is switched on, the connecting rod rotates to a switch-on position along with the leakage protection pole and the operation mechanisms of the two adjacent L-poles; and when the circuit breaker is switched off, the connecting rod rotates in a switch-off direction along with the operation mechanism of the two L-poles adjacent to the leakage protection pole, but the third operation mechanism does not move. When a leakage fault occurs, by means of the connecting rod, the third operation mechanism drives the operation mechanisms of the two adjacent L-poles to rotate together in the switch-off direction. In the present invention, a leakage protection pole is connected to two adjacent L-poles in a linkage manner by means of a connecting rod, thereby improving the degree of coordination between circuit breaker poles of a circuit breaker.
Inventors:
XIA XIAOMIN (CN)
CHEN XIAOHAI (CN)
ZHENG FAJIN (CN)
TANG FAN (CN)
CHEN XIAOHAI (CN)
ZHENG FAJIN (CN)
TANG FAN (CN)
Application Number:
PCT/CN2022/112725
Publication Date:
July 27, 2023
Filing Date:
August 16, 2022
Export Citation:
Assignee:
ZHEJIANG CHINT ELECTRICS CO LTD (CN)
International Classes:
H01H71/10; H01H71/04
Foreign References:
| CN217061989U | 2022-07-26 | |||
| CN217061947U | 2022-07-26 | |||
| CN217061970U | 2022-07-26 | |||
| CN217061971U | 2022-07-26 | |||
| CN104134589A | 2014-11-05 | |||
| CN206639764U | 2017-11-14 | |||
| CN112582237A | 2021-03-30 | |||
| CN212783272U | 2021-03-23 |
Attorney, Agent or Firm:
BEIJING JOYAN INTELLECTUAL PROPERTY OFFICE (CN)
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