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Title:
SECONDARY LATCH MECHANISM FOR OPERATING MECHANISM OF CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2016/173464
Kind Code:
A1
Abstract:
A secondary latch mechanism for an operating mechanism of a circuit breaker. The operating mechanism (107) comprises: a tripping component (100), a left side plate component (101), a right side plate component (104), a latch component (102), a half shaft component (103), a lever component (105) and a main shaft component (106). The tripping component, the latch component and the lever component are mounted between the left side plate component and the right side plate component. The half shaft component and the main shaft component run through the left side plate component and the right side plate component and extend out of the left side plate component and the right side plate component. The tripping component, the latch component, the half shaft component, the lever component and the main shaft component are linked. The tripping component comprises a trip, a second end of the trip having a latch surface. The latch component comprises a sheet metal piece (219) rotating around a rotating shaft (217) and a bearing (221) mounted on the sheet metal piece. The bearing is in contact with the latch surface, and the latch component limits the tripping component. The half shaft component comprises a half shaft (223), the sheet metal piece is in contact with the half shaft, and the half shaft component limits the latch component. The tripping component, the latch component and the half shaft component form a secondary latch mechanism.

Inventors:
SUN JISHENG (CN)
LI YONG (CN)
Application Number:
PCT/CN2016/079970
Publication Date:
November 03, 2016
Filing Date:
April 22, 2016
Export Citation:
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Assignee:
SEARI ELECTRIC TECHNOLOGY CO LTD (CN)
ZHEJIANG CHINT ELECTRICS CO LTD (CN)
International Classes:
H01H71/10; H01H9/24
Foreign References:
CN204614745U2015-09-02
CN204614743U2015-09-02
CN103441041A2013-12-11
CN201112159Y2008-09-10
CN203038876U2013-07-03
US5889250A1999-03-30
Other References:
See also references of EP 3291276A4
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
上海专利商标事务所有限公司 (CN)
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