US 12,412,719 B2
Operating mechanism of circuit breaker, and circuit breaker
Denggui Ao, Shanghai (CN); Hao Fu, Shanghai (CN); and Yongfu Xu, Shanghai (CN)
Assigned to CHINT LOW VOLTAGE ELECTRICAL TECHNOLOGY CO., LTD., (CN)
Appl. No. 18/248,400
Filed by Chint Low Voltage Electrical Technology Co., Ltd., Shanghai (CN)
PCT Filed Mar. 31, 2022, PCT No. PCT/CN2022/084552
§ 371(c)(1), (2) Date Apr. 10, 2023,
PCT Pub. No. WO2022/206919, PCT Pub. Date Oct. 6, 2022.
Claims priority of application No. 202110355214.0 (CN), filed on Apr. 1, 2021.
Prior Publication US 2023/0377825 A1, Nov. 23, 2023
Int. Cl. H01H 71/52 (2006.01)
CPC H01H 71/521 (2013.01) 15 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, as well as a first crank, a first spring, a first connecting rod and a contact support, 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; one end of the first spring is connected to the rocker arm assembly, and another end of the first spring is connected to a rotating connection position of the first crank and the first connecting rod;
wherein the operating mechanism further comprises slide rails, a slider and a second connecting rod; the slider is slidably disposed on the slide rails and is rotatably connected to another end of the first connecting rod; one end of the second connecting rod is rotatably connected to the slider, and another end of the second connecting rod is rotatably connected to the contact support; and the contact support is driven to rotate around a third axis.