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Residual-current circuit breaker

An earth leakage circuit breaker and voltage technology, applied in multiple unbalanced current/voltage switches, protective switch operation/release mechanisms, protective switch terminals/connections, etc., can solve the problem of wasting space, wasting costs, and inconvenient installation of test buttons And other issues

Pending Publication Date: 2021-06-25
ZHEJIANG TENGEN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the inconvenience of installing the test button in the prior art, and the problems of wasting space and cost, thereby providing a leakage circuit breaker

Method used

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  • Residual-current circuit breaker
  • Residual-current circuit breaker
  • Residual-current circuit breaker

Examples

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Effect test

Embodiment 1

[0039] Refer Figure 1-5 The present application provides a leakage circuit breaker, including a housing, a mechanism spring, a L-pole, and an N-pole link, an movable contact, a static contact 11, an off-line, an outgoing end, a voltage on a housing. The trip unit 2, an arc extinguishing device, a trip device, further comprising a test button 1, a connecting piece 2, a test piece 3, and a limiting block 4, and the test button 1 is slidably embedded in the through hole groove on the outer wall of the housing. The connecting piece 2 is connected to the bottom of the test button 1 and facilitates the inner wall of the housing; one end of the test piece 3 is an elastic piece, abutting with the connecting piece 2, and the other end of the test piece 3 is fixed at the line. On the board, the test piece 3 is used to provide a rebound force to the connecting piece 2, and turn on the test leakage circuit when the test button 1 is pressed.

[0040] When the operator needs to simulate the lea...

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Abstract

The invention relates to the technical field of circuit breakers and particularly relates to a residual-current circuit breaker. The circuit breaker comprises a shell, wherein the shell is provided with a mechanism spring, an L-pole universal driving shaft, an N-pole universal driving shaft, a moving contact, a static contact, a wire inlet end, a wire outlet end, a voltage release, an arc extinguishing device, a tripping device, a test button, a connecting piece, a test piece and a limiting block, the test button is embedded in a through hole groove in the outer wall of the shell in a sliding manner; the connecting piece is connected with the bottom of the test button and abuts against the inner wall of the shell. one end of the test piece is an elastic piece and abuts against the connecting piece, the other end of the test piece is fixed to the circuit board, and the test piece is used for providing resilience force pointing to the connecting piece and switching on a test electric leakage loop when the test button is pressed down. The circuit breaker is advantaged in that problems of inconvenience of mounting the test button and space and cost waste are solved.

Description

Technical field [0001] The present invention relates to the technical field of circuit breakers, and more particularly to a leakage circuit breaker. Background technique [0002] The circuit breaker refers to a switching device that can be combined, carrying, and breaking the current under normal circuit conditions and can engage in a specified time, carry and break off the current under abnormal circuit conditions. The circuit breaker is divided into high-voltage circuit breakers and low-voltage circuit breakers according to its range, and the high and low voltage line division is relatively blurred, and 3kV is generally referred to as high voltage electrical appliances. The circuit breaker can be used to allocate electrical energy, to start an asynchronous motor without frequently, protect the power line and motor, etc., when they have a serious overload or short circuit and undervoltage failure, the circuit can be automatically cut off, and its function is equivalent to the fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H83/14H01H71/08H01H71/10
CPCH01H71/08H01H71/10H01H83/14
Inventor 陈平张寅黎永胜吴昊余存泰吴碧如李晓蒙
Owner ZHEJIANG TENGEN ELECTRIC
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