Lock releasing mechanism of residual current operated circuit breaker

A release mechanism, residual current technology, applied in the direction of protection switch operation/release mechanism, switches operated by ground fault current, etc., can solve problems such as injuries, finger hits, etc., and achieve the effect of saving internal space

Active Publication Date: 2011-01-26
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the handle is turned from the test position to the open position, the operator's finger being tested is likely to be hit by the rebound handle, causing injury

Method used

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  • Lock releasing mechanism of residual current operated circuit breaker
  • Lock releasing mechanism of residual current operated circuit breaker
  • Lock releasing mechanism of residual current operated circuit breaker

Examples

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Embodiment Construction

[0032] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings, in which the same symbols represent the same parts.

[0033] figure 1 It is a structural schematic diagram of a linkage plate in a lock release mechanism of a residual current operated circuit breaker of the present invention. The linkage piece 40 includes a body 41, which is disc-shaped, generally disc-shaped to facilitate installation and manufacture. For ease of description, hereinafter, the direction along the radius of the disk surface is referred to as the radial direction, and the direction along the circumference of the disk surface is referred to as the circumferential direction. A central hole 42 is provided in the middle of the body 41, and the central hole can be sleeved on the installation shaft of the residual curren...

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PUM

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Abstract

The invention provides a lock releasing mechanism of a residual current operated circuit breaker. The lock releasing mechanism comprises a shell, a handle, a handle torsion spring, a test button and a linkage sheet. The handle is provided with a limit bump; the test button is provided with a stop bump; the linkage sheet is arranged between the handle and the handle torsion spring and comprises a body, a centre hole, a groove, a force transfer bump and a track; the track of the linkage sheet is positioned in the body of the linkage sheet and comprises an inner side part close to the centre hole and an outer side part positioned on the radial outer side of the inner side part; and a circumferential spacer is arranged between the inner side start end surface of the inner side part and the outer side start end surface of the outer side part. The lock releasing mechanism enables the handle to be instantaneously locked at the position required by the design while ensuring reliable disconnection of a contact by controlling the motion state of the handle, and avoids hurt to fingers of an operator caused by handle resilience during leakage test.

Description

technical field [0001] The invention relates to a lock release mechanism of a residual current operated circuit breaker (RCBO). Specifically, in order to realize the overload, short circuit and leakage protection functions of the circuit breaker in a modular shell of the circuit breaker, and can be used as required Connecting different accessories, the present invention provides a lock release mechanism for the handle of a residual current operated protector. Background technique [0002] In a modular shell of a residual current operated circuit breaker (RCBO), in order to realize the overload, short circuit and leakage protection of the circuit breaker at the same time, various additional components such as leakage protection accessories can be connected to the RCBO, but limited to the circuit breaker Due to the limitation of the body space, the handle and the test button need to be placed on the same side in the design. The limited space causes a certain amount of space in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H83/04H01H71/10
Inventor 郭永娜包章尧陈嘉
Owner SIEMENS AG
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