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Dual-interruption point breaker

A circuit breaker and double-breakpoint technology, which is applied in the field of double-breakpoint circuit breakers, can solve problems such as poor reliability, and achieve the effects of preventing mutual channeling, simple structure, and reliable action

Active Publication Date: 2007-08-01
JIANGSU DAQO KFINE ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing low-voltage circuit breakers with a frame structure have a single break point structure, and the reliability of the live action is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] As shown in Figure 1 and Figure 2, the middle part of the inner cavity of the base body 1 of the double breakpoint circuit breaker of the present invention is the movable contact 2, and the movable contact is connected to the circuit breaker operating mechanism through the connector at the rear end of the insulating connection plate 21, so that it can Driven by the operating mechanism, it moves back and forth, and arc extinguishing chambers 3 are arranged on both sides of the inner cavity of the moving contact. Two static contacts 4 are arranged on the base inner wall in front of the moving contact, and the positions of the two static contacts are opposite to the two contact ends 23 on the front face of the moving contact. Two insulating arc-breakers 24 parallel to each other are arranged between the upper and lower contact ends, and the arc-breakers cooperate with the two slots 12 on the base body. When the moving contact moves back and forth, the insulating arc barrie...

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Abstract

The invention belongs to low voltage electric equipment, it relates to a double break points breaker. It includes a base equipped with a frame structure, an acting contactor which can move forewords and backwards is mounted in inner cavum of the base, arc extinguish chamber is separately set in upper and lower part of the inner cavum of the base; insulated connecting board is fixed to the acting contactor, a connecting end which is used to connect with breaker operating device is throw out from rear end of the insulated connecting board; the upper and lower end of the acting contactor are upper contactor and lower contactor, two pieces of horizontal insulated flash barrier are fixed between the upper contactor and the lower contactor; upper statistic contactor and lower statistic contactor are set on the wall of the base which is at frontage of the acting contactor, the position of the upper contactor and lower contactor is corresponding with the upper contacting end and lower contacting end of the acting contactor; two insert grooves are set in two bases which is between the upper statistic contactor and lower statistic contactor, two insulated flash barriers which is connected with acting contactor are separately inserted into the two grooves. The invention is simple and reliable to use.

Description

technical field [0001] The invention belongs to low-voltage electrical equipment, and relates to a double break point circuit breaker. Background technique [0002] Most of the existing low-voltage circuit breakers with a frame structure have a single break point structure, and the reliability of the circuit breaker when it is live is poor. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a double break circuit breaker with simple structure, safe and reliable use. [0004] The double breakpoint circuit breaker of the present invention includes a base body with a frame structure, a movable contact that can move back and forth is arranged in the middle of the inner cavity of the base body, and arc extinguishing chambers are respectively arranged on both sides of the inner cavity of the base body; An insulating connecting plate is fixed, and the rear end of the insulating connecting plate protrudes from the base bod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/10H01H71/00
Inventor 王立强郑改红刘建军
Owner JIANGSU DAQO KFINE ELECTRIC
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