Title:
CIRCUIT BREAKER HAVING N POLES WITHOUT ARC EXTINGUISHING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/211585
Kind Code:
A1
Abstract:
Disclosed is a circuit breaker having N poles without an arc extinguishing device, comprising an N-pole circuit breaker and an adjacent live line circuit breaker; an N-pole circuit breaker tripping link rod is provided inside the N-pole circuit breaker, and the N-pole circuit breaker tripping link rod and an adjacent live line circuit breaker tripping link rod form a cross plugging structure. The present invention uses the design of trigger of the cross plugging structure formed by the adjacent live line circuit breaker tripping link rod of the adjacent live line circuit breaker and the N-pole circuit breaker tripping link rod of the N-pole circuit breaker, ensuring that the adjacent live line circuit breaker trips first, and after a contact of the adjacent live line circuit breaker is disengaged, immediately before a contact mechanism of the adjacent live line circuit breaker moves to an end point, an N-pole circuit breaker tripping linking action of the N-pole circuit breaker is triggered, ensuring that no arc is generated on the contact of the N-pole circuit breaker, thereby achieving the purpose that the N-pole circuit breaker subsequently opens, and there is no need to replace parts and to redesign the contact mechanism of the N poles.
Inventors:
WANG KECHENG (CN)
Application Number:
PCT/CN2020/079794
Publication Date:
October 22, 2020
Filing Date:
March 17, 2020
Export Citation:
Assignee:
TIANJIN JMT ELECTRIC EQUIPMENT CO LTD (CN)
International Classes:
H01H71/10; H01H71/24
Foreign References:
| CN203931978U | 2014-11-05 | |||
| CN110767508A | 2020-02-07 | |||
| CN109920706A | 2019-06-21 | |||
| CN110085489A | 2019-08-02 | |||
| CN108155067A | 2018-06-12 | |||
| KR20150003694U | 2015-10-08 |
Attorney, Agent or Firm:
BEI & OCEAN (CN)
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