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Crow plate trip circuit breaker

一种断路器、脱扣的技术，应用在电路、保护开关的零部件、电气元件等方向，能够解决限制分断能力与额定电流等问题

Active Publication Date: 2013-02-06
WENZHOU NEW BLUD SKY ELECRICIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional miniature circuit breaker, the tripping mechanism adopts an electromagnetic tripper, and the electromagnetic tripper is usually set above the arc extinguishing chamber. Since the electromagnetic tripper has a large volume, and the miniature circuit breaker is limited by the overall volume, Therefore, the volume of the arc extinguishing chamber can only be reduced, thus limiting its breaking capacity and rated current. The traditional miniature circuit breaker with a shell width of 18mm has a rated current of only 63A

Method used

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  • Crow plate trip circuit breaker
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  • Crow plate trip circuit breaker

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Embodiment Construction

[0023] See attached figure 1 to attach Figure 9 , The crowbar tripping circuit breaker disclosed in the present invention includes a housing, and the housing is provided with an operating mechanism 2, a latch frame 3, a tripping mechanism 4, a moving contact 5, a static contact 6, an arc extinguishing chamber 7 and a double The metal sheet 8, the operating mechanism 2 includes a handle 201, a jumper 202, an indicating lever 203, and a small bracket 204 that are set in linkage. The two sides of the housing 1 are also respectively provided with terminal posts 9, the small bracket 204 and the moving contact 5. It is arranged in linkage, one end of the bimetal strip 8 is conductively connected with the terminal post 9 on one side of the housing 1 through the terminal board 10 and the soft connector 11, the lock frame 3 is hingedly arranged in the housing 1, and the lock The buckle frame 3 includes a lock part 301 that cooperates with the jumper 202 of the operating mechanism 2 a...

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Abstract

The invention relates to a crow plate trip circuit breaker which comprises a housing, an operating mechanism, a latch frame, a trip mechanism, a moving contact, a static contact, an arc extinguish chamber and double sheet metals, wherein the latch frame is hinged inside the housing and comprises a latch part matched with the operating mechanism and an action part matched with the trip mechanism, the trip mechanism comprises a crow plate unit and a driving unit used for driving the crow plate unit to rotate, the driving unit comprises a conducting plate electrically connected with the double sheet metals and an electromagnetic induction element arranged on the conducting plate, the crow plate unit comprises a pivotally arranged crow plate, an armature matched with the electromagnetic induction element is arranged at one end of the crow plate, the other end of the crow plate is matched with the action part of the latch frame, and the crow plate is also provided with an elastic part used for applying acting force to the crow plate. The technical scheme of the crow plate trip circuit breaker has the effects of simple structure, lower cost and greatly increased breaking capacity and rated current.

Description

technical field [0001] The invention relates to the field of circuit breakers, in particular to a crowbar tripping circuit breaker. Background technique [0002] A circuit breaker usually includes a housing, which is equipped with an operating mechanism, a lock frame, a tripping mechanism, a moving contact, a static contact, an arc extinguishing chamber and a bimetal sheet, and the two sides of the housing are respectively provided with terminal posts. , one end of the bimetal sheet is conductively connected with the terminal on one side of the housing, and the other end of the bimetal sheet is conductively connected with the moving contact through a brush wire. The matching locking part and the action part matching with the tripping mechanism. In traditional miniature circuit breakers, the tripping mechanism usually adopts an electromagnetic tripper. The coil of the electromagnetic tripper is electrically connected to the bimetallic sheet. When the circuit breaker is in a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/24
CPCH01H71/2454H01H71/2472H01H71/40H01H71/505
Inventor 黄明光
Owner WENZHOU NEW BLUD SKY ELECRICIAL
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