Operating mechanism of circuit breaker, and circuit breaker
AssigneeChint Low Voltage Electrical Technology Co., Ltd.
InventorsDenggui Ao, Hao Fu, Yongfu Xu
Life of this patent
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Abstract
An operating mechanism of a circuit breaker, relating to the field of low-voltage electric appliances. The operating mechanism is provided with a double-slider mechanism, a first slider mechanism comprising a first crank, a first connecting rod, a sliding rail and a slider, and a second slider mechanism comprising a contact support, a second connecting rod, a sliding rail and a slider. The double-slider mechanism reduces the space requirement of the operating mechanism while increasing the opening distance of a moving contact, and the breaking performance is good. A circuit breaker comprising the operating mechanism, which provides good breaking performance.
Claims15
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.
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, a second crank 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;
- the second crank comprises a second crank supporting portion, a second crank connecting portion, and a second crank driving portion, wherein the second crank is pivotally disposed through the second crank supporting portion, and the second crank is connected to the contact support through the second crank driving portion;
- 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 second crank connecting portion;
- and the contact support is driven to rotate around a third axis.
Dependencies are inferred from the claim text.