Title:
LEAKAGE PROTECTION UNIT AND RESIDUAL-CURRENT CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2023/226673
Kind Code:
A1
Abstract:
A leakage protection unit and a residual-current circuit breaker. The leakage protection unit comprises a base (1), and a handle (2), a tripping mechanism (50), and a first electromagnetic tripper (8) that are mounted in the base (1). Both the handle (2) and the first electromagnetic tripper (8) are in linkage connection with the tripping mechanism (50), so as to respectively drive manual closing and tripping opening of the tripping mechanism (50); and in the tripping mechanism (50), a reset plate (7) and a latch (6) share a pivot shaft (R), such that when the reset plate (7) rotates to unlock the latch (6), a pushing action point of the reset plate on the latch (6) does not deviate, and the unlocking of a locking part (61) and a locked part (51) does not slide mutually, thereby improving the stability of a tripping force and the reliability of a tripping process.
Inventors:
JIA YONGSHUAI (CN)
ZHOU YANHAI (CN)
ZHANG XIELI (CN)
LAI SENLIN (CN)
CHEN MIN (CN)
LIN ZHUOYONG (CN)
ZHOU YANHAI (CN)
ZHANG XIELI (CN)
LAI SENLIN (CN)
CHEN MIN (CN)
LIN ZHUOYONG (CN)
Application Number:
PCT/CN2023/090952
Publication Date:
November 30, 2023
Filing Date:
April 26, 2023
Export Citation:
Assignee:
XIAMEN HONGFA ELECTRICAL SAFETY & CONTROLS CO LTD (CN)
International Classes:
H01H71/12; H01H71/24
Foreign References:
| CN114883154A | 2022-08-09 | |||
| CN217444321U | 2022-09-16 | |||
| CN209691710U | 2019-11-26 | |||
| CN111900053A | 2020-11-06 | |||
| CN108511288A | 2018-09-07 | |||
| JP2018190694A | 2018-11-29 |
Attorney, Agent or Firm:
BEIJING INTELLEGAL INTELLECTUAL PROPERTY AGENT LTD. (CN)
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