Title:
OPERATING MECHANISM OF CIRCUIT BREAKER, QUICK TRIPPING DEVICE, AND CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2024/083052
Kind Code:
A1
Abstract:
An operating mechanism of a circuit breaker, comprising: a support (1); a rocker arm assembly, a tripping fastener (7), a locking fastener (10), and a refastening piece (9) that are rotatably provided on the support (1), separately; a first crank (14); an energy storage spring (4); a sliding rail (1-0) fixedly arranged relative to the support (1); a sliding block (18); a first connecting rod (16); a second connecting rod (19); a second crank (22) rotatably arranged about a sixth center (6S); a third connecting rod (23); and a third crank (25) rotatably arranged about a seventh center (7S), wherein the third crank (25) is located on one side of the operating mechanism in the horizontal direction of the operating mechanism. Switching between three working states can be achieved without connection to a contact system; moreover, the layout of the contact system can be changed, so as to provide a larger installation space for an arc-extinguishing chamber.
Inventors:
LU DENGYU (CN)
AO DENGGUI (CN)
XU YONGFU (CN)
AO DENGGUI (CN)
XU YONGFU (CN)
Application Number:
PCT/CN2023/124630
Publication Date:
April 25, 2024
Filing Date:
October 14, 2023
Export Citation:
Assignee:
CHINT LOW VOLTAGE ELECTRICAL TECH CO LTD (CN)
International Classes:
H01H71/02
Foreign References:
| CN218957657U | 2023-05-02 | |||
| CN215869217U | 2022-02-18 | |||
| CN112216550A | 2021-01-12 | |||
| CN211150471U | 2020-07-31 | |||
| US4323743A | 1982-04-06 |
Attorney, Agent or Firm:
BEIJING JOYAN INTELLECTUAL PROPERTY OFFICE (CN)
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