Unlock instant, AI-driven research and patent intelligence for your innovation.

Operating mechanism of small residual current action breaker

A technology of residual current and operating mechanism, which is applied in the direction of protection switch operation/release mechanism, switch equipment status indication, etc., can solve the problems of small restoring force, impact, and affecting the life of electromagnetic relays, etc., to achieve small impact and prolong service life Effect

Active Publication Date: 2009-09-23
ZHEJIANG CHINT ELECTRIC CO LTD
View PDF1 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem that the return force of the striker of the electromagnetic relay is impacted by the operating mechanism in the prior art, which directly affects the life of the electromagnetic relay. Operating mechanism of current operated circuit breaker

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Operating mechanism of small residual current action breaker
  • Operating mechanism of small residual current action breaker
  • Operating mechanism of small residual current action breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] refer to Figure 1-7 , Figure 12-19 , the operating mechanism of the small residual current operated circuit breaker of the present invention includes a base 2 and a cover 1, and the base 2 is equipped with one or more pairs of static contacts 17 and moving contacts 18, and the moving contacts 18 are installed on the rotating shaft 16, the rotating shaft 16 is driven by a mechanism between the closed position and the disconnected position, and the mechanism includes:

[0042] A support 7, a partition 6 and a fixed plate 8;

[0043]A toggle formed by connecting a manual operating handle 3 with a first transmission link 10, the handle 3 is mounted on the cylindrical boss of the support 7 and can rotate around the cylindrical boss; The handle 3 is also provided with a handle return spring 26;

[0044] A rocker arm 12 with three round holes, one of which is connected to the operating handle 3 through the first transmission link 10, and the other hole is connected to the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an operating mechanism of a small residual current action breaker. A base is internally provided with a pair or a plurality of pairs of fixed contacts and moving contacts; the moving contacts are arranged on a rotating shaft which is driven by a mechanism positioned between an on position and a breaking position; and the mechanism comprises a bracket, a baffle, a fixed plate, a toggle, a rocker, a tripping button, a lever, a push rod and a transmission rod. As the resetting of a striker of a fault tripping device, pushed by the push rod, is driven by a transmission rod reset spring, the operating mechanism has little impact force and can effectively prolong the service life of an electromagnetic relay.

Description

technical field [0001] The present invention relates to a low-voltage electrical appliance, specifically a kind of AC 50Hz, rated voltage no more than 400V, rated current up to 125A, the action function has nothing to do with the line voltage and is related to the line voltage, which is mainly used for electric shock hazard Protective residual current operated circuit breaker without overcurrent protection. The invention aims to provide customers with a solution for residual current operated circuit breakers. Background technique [0002] The operating mechanism of the existing small residual current operated circuit breaker, such as the technology disclosed in Chinese patent CN1808665A. When there is a residual fault current in the circuit, the striker of the fault release relay pushes the force arm above the push rod to rotate, and then pushes the moving contact support to separate the moving and static contacts. At the same time, the lock and jumper are unlocked, and the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/10H01H71/50H01H71/04H01H71/24
Inventor 严鹏斌杨仁煜
Owner ZHEJIANG CHINT ELECTRIC CO LTD