Title:
CIRCUIT BREAKER AND EXHAUST STRUCTURE THEREOF
Document Type and Number:
WIPO Patent Application WO/2017/076140
Kind Code:
A1
Abstract:
A circuit breaker and an exhaust structure thereof. The circuit breaker comprises an exhaust port (101, 102, 103). The exhaust port is aligned with the tail of an arc extinguish chamber (106). An exhaust space of the exhaust port is overlapped with a junction device (401, 402) of the circuit breaker. In case of non-junction, the junction device occupies the exhaust space. In case of junction of the junction device, the exhaust space is emptied. The exhaust structure of the circuit breaker utilizes an unoccupied space of the junction device, increases the quantity of exhaust ports, and expands the exhaust space, thereby significantly improving the exhaust capability. The exhaust structure is also provided with a partition protrusion (104) for partitioning an electric arc, the partition protrusion achieves the function of supporting the arc extinguish chamber, and the arc extinguish capability is prevented from being reduced due to impact shifting of the arc extinguish chamber.
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Inventors:
ZHANG SHENHU (CN)
ZHOU CHANGQING (CN)
GE WEIJUN (CN)
ZHOU CHANGQING (CN)
GE WEIJUN (CN)
Application Number:
PCT/CN2016/100720
Publication Date:
May 11, 2017
Filing Date:
September 29, 2016
Export Citation:
Assignee:
SEARI ELECTRIC TECHNOLOGY CO LTD (CN)
ZHEJIANG CHINT ELECTRICS CO LTD (CN)
ZHEJIANG CHINT ELECTRICS CO LTD (CN)
International Classes:
H01H73/18
Foreign References:
| CN105244242A | 2016-01-13 | |||
| CN205104459U | 2016-03-23 | |||
| CN204257457U | 2015-04-08 | |||
| CN203013659U | 2013-06-19 | |||
| US4845460A | 1989-07-04 |
Other References:
See also references of EP 3373320A4
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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