Title:
CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2022/135041
Kind Code:
A1
Abstract:
A circuit breaker, particularly, a lock spring device inside a circuit breaker. The following technical solution is used: a circuit breaker, wherein a movable contact device (4) comprises a movable contact seat (41) and a movable contact (42); a sliding groove (411) is provided on the upper end of the movable contact seat (41), and the sliding groove (411) comprises a bent portion (4111) and a straight portion (4112); a first end of a connecting rod (31) in a handle device (3) is connected to a handle of the handle device (3), and a second end thereof is placed in the sliding groove (411); a lock device (5) comprises a lock spring mechanism (52) and a lock (51); the lock (51) is hingedly provided on the movable contact seat (41); and a fork (511) is provided on the upper end of the lock (51), and after the circuit breaker opens, the fork (511) fits the bent portion (4111) of the sliding groove (411) to lock the second end of the connecting rod (31), in this case, the handle can be pushed to close the circuit breaker.
Inventors:
ZHOU WEIFENG (CN)
LIN KAI (CN)
HU GUANGZHAO (CN)
LIN KAI (CN)
HU GUANGZHAO (CN)
Application Number:
PCT/CN2021/133624
Publication Date:
June 30, 2022
Filing Date:
November 26, 2021
Export Citation:
Assignee:
ZHEJIANG AOELEC ELECTRICAL CO LTD (CN)
International Classes:
H01H71/50; H01H71/10
Foreign References:
| CN112530758A | 2021-03-19 | |||
| CN112530752A | 2021-03-19 | |||
| CN112563087A | 2021-03-26 | |||
| CN104319203A | 2015-01-28 | |||
| CN108198736A | 2018-06-22 | |||
| CN211045360U | 2020-07-17 |
Attorney, Agent or Firm:
SHANGHAI HUICHENG HEYI INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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