Title:
OPERATION STRUCTURE OF CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2021/023203
Kind Code:
A1
Abstract:
Disclosed is an operation structure of a circuit breaker, the operation structure comprising a base (3), wherein a handle (1) and a lever (5) are rotationally connected to the upper portion of the base, a lock catch (4) is sleeved on a connection shaft of the lever, the handle is in linkage with the lock catch, a trip buckle (7) and a moving contact (8) are sleeved on a protruding shaft on a lower surface of the lever, the protruding shaft on the lower surface of the lever is further provided with a contact torsional spring (6), one end of the contact torsional spring is tightly pressed on the lever, the other end of the contact torsional spring is tightly pressed on the moving contact, and a force applying portion of the lock catch cooperates with a stress portion of the trip buckle to push the trip buckle to rotate; a tension spring (18) is arranged at a position, corresponding to the lower portion of the handle, on the base, one end of the tension spring is connected to the base, and the other end of the tension spring is connected to the lever; and the base is further provided with a fixed contact (17), and an arc extinguishing chamber (14) is arranged below the fixed contact.
Inventors:
ZHANG MING (CN)
Application Number:
PCT/CN2020/107012
Publication Date:
February 11, 2021
Filing Date:
August 05, 2020
Export Citation:
Assignee:
BOER WUXI POWER SYSTEM CO LTD (CN)
International Classes:
H01H71/10; H01H71/52
Foreign References:
| CN210052707U | 2020-02-11 | |||
| CN103700548A | 2014-04-02 | |||
| CN108122716A | 2018-06-05 | |||
| CN209045465U | 2019-06-28 |
Attorney, Agent or Firm:
WUXI DAWEI PATENT TRADE MARK AGENCY (GENERAL PARTNERSHIP) (CN)
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