US 12,431,312 B2
Operating mechanism of circuit breaker
Denggui Ao, Shanghai (CN); Lijun Yan, Shanghai (CN); Dengyu Lu, Shanghai (CN); and Hao Fu, Shanghai (CN)
Assigned to CHINT LOW VOLTAGE ELECTRICAL TECHNOLOGY CO., LTD., (CN)
Appl. No. 18/248,410
Filed by Chint Low Voltage Electrical Technology Co., Ltd., Shanghai (CN)
PCT Filed Mar. 31, 2022, PCT No. PCT/CN2022/084407
§ 371(c)(1), (2) Date Apr. 10, 2023,
PCT Pub. No. WO2022/206892, PCT Pub. Date Oct. 6, 2022.
Claims priority of application No. 202110355281.2 (CN), filed on Apr. 1, 2021.
Prior Publication US 2023/0411098 A1, Dec. 21, 2023
Int. Cl. H01H 71/52 (2006.01)
CPC H01H 71/52 (2013.01) 13 Claims
OG exemplary drawing
 
1. An operating mechanism of a circuit breaker, comprising a bracket, a rocker arm assembly, a jump buckle, a latch, a re-buckle, a first crank, a first spring and a first connecting rod, wherein the rocker arm assembly, the jump buckle, the latch and the re-buckle are pivotally disposed on the bracket respectively, the jump buckle is in latching fit with the latch, and the re-buckle is in limiting fit with the latch; one end of the first crank is pivotally disposed on the jump buckle around a first axis, and another end of the first crank is rotatably connected to one end of the first connecting rod around a second axis; the rocker arm assembly is driving connection with the first crank through the first spring; and
the operating mechanism further comprises slide rails disposed on the bracket, and a slider slidably disposed on the slide rails, wherein the slider is rotatably connected to another end of the first connecting rod, and the slider is in driving fit with a moving contact mechanism of the circuit breaker.