Title:
TEST BUTTON LOOP DEVICE AND CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2023/138041
Kind Code:
A1
Abstract:
A test button loop device and a circuit breaker provided with a test button loop device. The test button loop device comprises an elastic button and a conductive piece that form a test loop; the elastic button comprises a contact portion cooperating with the conductive piece, and a button piece pressing the contact portion; the conductive piece is in linkage with a handle mechanism or an operating mechanism or a moving contact of a circuit breaker; when the circuit breaker is closed, the handle mechanism or the operating mechanism or the moving contact of the circuit breaker drives the conductive piece to be close to the contact portion, and at this time, the button piece is pressed to drive the contact portion to move to be in contact with the conductive piece so as to conduct the test loop; and during opening, the handle mechanism or the operating mechanism or the moving contact of the circuit breaker drives the conductive piece to be far away from the contact portion, and at this time, the button piece is pressed to drive the contact portion to move, so that the contact portion cannot be in contact with the conductive piece. The test loop of the present invention is only provided with one breakpoint formed by the contact portion and the conductive piece, but has the protection effect of a double-breakpoint structure, prevents the problem of electrification after opening caused by reverse wiring, and also has the advantages of being simple in structure, high in assembly efficiency, and high in reliability.
Inventors:
XIA XIAOMIN (CN)
CHEN XIAOHAI (CN)
LI JIE (CN)
WU YANQIANG (CN)
CHEN XIAOHAI (CN)
LI JIE (CN)
WU YANQIANG (CN)
Application Number:
PCT/CN2022/112637
Publication Date:
July 27, 2023
Filing Date:
August 16, 2022
Export Citation:
Assignee:
ZHEJIANG CHINT ELECTRICS CO LTD (CN)
International Classes:
H01H9/26; H01H13/02; H01H13/12; H01H71/00; H01H71/02; H01H71/08; H01H71/10
Foreign References:
| CN217061822U | 2022-07-26 | |||
| CN206601475U | 2017-10-31 | |||
| CN1056372A | 1991-11-20 | |||
| CN106257295A | 2016-12-28 | |||
| CN209388991U | 2019-09-13 |
Attorney, Agent or Firm:
BEIJING JOYAN INTELLECTUAL PROPERTY OFFICE (CN)
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