Prepaid breaker arc-initiating device

A technology of arc striking device and circuit breaker, which is applied in the direction of circuit breaker components, circuits, electrical components, etc., can solve the problems of slow arc striking speed, poor segmentation ability, poor magnetic blowing effect, etc., and achieve fast arc striking speed, Simple structure, good magnetic blowing effect

Inactive Publication Date: 2015-11-11
长城电器集团浙江科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The arc ignition device in the existing prepaid circuit breaker has complicated structure, poor magnetic blowing effect, slow arc ignition speed, and poor segmentation ability

Method used

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  • Prepaid breaker arc-initiating device
  • Prepaid breaker arc-initiating device
  • Prepaid breaker arc-initiating device

Examples

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Embodiment Construction

[0017] An arc striking device for a prepaid circuit breaker, comprising an outer shell 1, an electromagnetic release 2, a conductive system 5, an electronic controller 3, an arc extinguishing system 4 and a tripping mechanism 6 are installed in the outer shell 1, and the outer shell 1 The lower part is provided with an arc discharge port 120, and the conductive system 5 includes an arc striker 530, a terminal block, a moving contact 520, a contact support and a static contact rod 510, and the arc striker 530 is bent to form two mutually parallel In the parallel part, the arc starting plate 530 is set as the arc connecting surface 5310, one end of the arc starting plate 530 is set as an L-shaped bending welding boss 5330, and the other end is set as a bent arc starting surface 5320, and the arc starting surface 5320 is fixed on the shell In the positioning groove 110 on the body 1, the static contact rod 510 is bent into a V-line or U shape, and the static contact rod 510 is pro...

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PUM

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Abstract

The invention discloses a prepaid breaker arc-initiating device, comprising an outer shell. A magnetic release, a conductive system, an electronic controller, an arc-extinguishing system and a tripping mechanism are arranged in the outer shell. An arc discharging port is arranged at the lower part of the outer shell; the conductive system comprises a run-on plate, a wiring board, a movable contact, a contact support and a static feeler lever. The run-on plate is bent to form two parallel portions which are paralleled with each other; an arc receiving surface is arranged at the place of the run-on plate. An L-shaped bending and welding boss is arranged at one end of the run-on plate, and a bent arc leading surface is arranged at the other end of the run-on plate; the arc leading surface is fixed in a locating groove on the outer shell, and the static feeler lever is bent as V shape or U shape; two locating bosses which corresponds to each other are arranged on the static feeler lever. A welding silver contact is arranged at the bending surface of the static feeler lever, and the magnetic release is sleeved at the outside of a release iron core via a tripping coil and is accessed with the electronic controller via a lead. The benefits of the prepaid breaker arc-initiating device are as follows: the magnetic blow-out effect is good, the arc leading speed is fast, and breaking capacity of the prepaid breaker is greatly improved.

Description

technical field [0001] The invention relates to a component for a circuit breaker, in particular to an arc striking device for a prepaid circuit breaker. Background technique [0002] A circuit breaker (English name: circuit-breaker, circuitbreaker) refers to a switch that can close, carry and break current under normal circuit conditions and can close, carry and break current under abnormal circuit conditions within a specified time device. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The division of high and low voltage boundaries is relatively vague. Generally, those above 3kV are called high-voltage electrical appliances. [0003] Circuit breakers can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, and automatically cut off the circuit when they are severely overloaded, short-circuited, or under-voltage. Its function is equi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H73/18H01H9/44H01H9/34
CPCH01H73/18H01H9/34H01H9/44
Inventor 李其利黎永胜李威方晓东彭昆明夏初阳余存泰
Owner 长城电器集团浙江科技有限公司
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