Title:
FUSION WELDING ISOLATION MECHANISM FOR OPERATING MECHANISM OF CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2016/173462
Kind Code:
A1
Abstract:
A fusion welding isolation mechanism for an operating mechanism (107) of a circuit breaker. The operating mechanism of a circuit breaker 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, wherein isolation devices are provided on the lever component and the main shaft component, and the isolation devices limit, during fusion welding of a moving contact (110), an operating handle (230) so as to make the operating handle unable to perform opening. The fusion welding isolation mechanism can limit, in the case of fusion welding of a moving contact, a stroke of rotating of an operating mechanism to an opening direction, so as to protect the operating mechanism from being damaged due to a forced operation. After an external force disappears, the operating mechanism can self-return to a closing position.
Inventors:
SUN JISHENG (CN)
LI YONG (CN)
LI YONG (CN)
Application Number:
PCT/CN2016/079965
Publication Date:
November 03, 2016
Filing Date:
April 22, 2016
Export Citation:
Assignee:
SEARI ELECTRIC TECHNOLOGY CO LTD (CN)
ZHEJIANG CHINT ELECTRICS CO LTD (CN)
ZHEJIANG CHINT ELECTRICS CO LTD (CN)
International Classes:
H01H71/10
Foreign References:
| CN103441041A | 2013-12-11 | |||
| CN201112159Y | 2008-09-10 | |||
| CN103681137A | 2014-03-26 | |||
| CN101938233A | 2011-01-05 | |||
| JPH0757593A | 1995-03-03 |
Other References:
See also references of EP 3291274A4
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)
上海专利商标事务所有限公司 (CN)
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