US 12,431,310 B2
Operating mechanism of circuit breaker and assembling breaker
Denggui Ao, Shanghai (CN); Lijun Yan, Shanghai (CN); Hao Fu, Shanghai (CN); and Yongfu Xu, Shanghai (CN)
Assigned to Chint Low Voltage Electrical Technology Co., Ltd., (CN)
Appl. No. 18/248,440
Filed by Chint Low Voltage Electrical Technology Co., Ltd., Shanghai (CN)
PCT Filed Mar. 31, 2022, PCT No. PCT/CN2022/084471
§ 371(c)(1), (2) Date Apr. 10, 2023,
PCT Pub. No. WO2022/206902, PCT Pub. Date Oct. 6, 2022.
Claims priority of application No. 202110355527.6 (CN), filed on Apr. 1, 2021.
Prior Publication US 2023/0368997 A1, Nov. 16, 2023
Int. Cl. H01H 69/00 (2006.01); H01H 71/50 (2006.01); H01H 71/54 (2006.01)
CPC H01H 69/00 (2013.01) [H01H 71/505 (2013.01); H01H 71/54 (2013.01); H01H 2071/507 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An operating mechanism of a circuit breaker, comprising a bracket, a rocker arm assembly and a jump buckle pivotally disposed on the bracket respectively, a first crank pivotally disposed on the jump buckle around a first axis, and a first spring, one end of the first spring is rotatably connected to the rocker arm assembly through a first spring shaft, and another end of the first spring is rotatably connected to the first crank through a second spring shaft; one end of the jump buckle is rotatably connected to the bracket and is a jump buckle pivoting end;
wherein the jump buckle comprises a jump buckle hole for a positioning pin shaft to be inserted, and the bracket comprises a bracket hole for the positioning pin shaft to be inserted;
the jump buckle hole is aligned with the bracket hole; the first spring shaft is in limiting fit with the jump buckle; and one end of the first crank swings in a direction away from the jump buckle pivoting end, such that a spacing between the first spring shaft and the second spring shaft is smaller than or equal to a length of the first spring, and a first assembly state is formed.