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Tripping mechanism of residual current circuit breaker

A leakage circuit breaker and tripping mechanism technology, applied in the direction of protection switch operation/release mechanism, etc., can solve the problems of transmission delay, complex tripping structure, high cost of tripping mechanism, etc., and achieve small tripping force and eliminate circuit breakers. Failure and safety hazards, the effect of simple structure

Inactive Publication Date: 2015-11-18
长城电器集团浙江科技有限公司
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Problems solved by technology

[0002] At present, various circuit breakers used for circuit protection, among them, the tripping structure used to drive the circuit breaking action to the circuit breaking mechanism is complicated, and the transmission delay cannot respond in a short period of time, leaving enough space for potential accidents. Secondly, the complex tripping mechanism has a high cost in the process of manufacturing, assembling and debugging

Method used

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  • Tripping mechanism of residual current circuit breaker
  • Tripping mechanism of residual current circuit breaker
  • Tripping mechanism of residual current circuit breaker

Examples

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Embodiment Construction

[0015] Such as Figure 1-Figure 5 The tripping mechanism of a leakage circuit breaker shown includes a circuit breaker housing 5, a circuit breaking mechanism, a leakage current detection system 1, an electronic control system 2, an electromagnetic tripper 3 and a trip reset device 4, the tripping The reset device includes a reset member 410, a trip link 420, an installation shaft 250, and a return spring. The reset member 410 is slidably engaged with the circuit breaker housing 5 through the return spring, and the middle part of the trip link 420 is connected by rotation through the installation shaft 250. Below the reset member 410 , the moving iron core 310 of the electromagnetic release 3 is in transmission connection with one end of the trip link 420 , and one end of the trip link 420 is also provided with a hook that buckles or abuts against the reset member 410 430, the other end of the tripping link 420 (and the linkage bar 4240) is in transmission connection with the ...

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Abstract

The invention discloses a tripping mechanism of a residual current circuit breaker. The tripping mechanism comprises a circuit breaker shell, a disconnection mechanism, a leakage current detection system, an electronic control system, an electromagnetic tripper and a tripping reset device and is characterized in that the tripping reset device comprises a reset element, a tripping connection rod, an installation shaft and a reset spring, the reset element is engaged onto the circuit breaker shell in a sliding way by the reset spring, the middle part of the tripping connection rod is connected below the reset element in a rotation way by the installation shaft, a movable iron core of the electromagnetic tripper is in transmission connection with one end of the tripping connection rod, a hook is further arranged at one end of the tripping connection rod and is buckled with or props against the reset element, and the other end of the tripping connection rod is in transmission connection with the disconnection mechanism. The tripping mechanism is exquisite in design, simple in structure, small in tripping force, high in action sensitivity and high in reliability, and a line failure and a potential risk caused by electric leakage can be eliminated better.

Description

technical field [0001] The invention relates to a circuit breaker for circuit protection of a power supply circuit, in particular to a tripping mechanism of a circuit breaker for leakage protection. Background technique [0002] At present, various circuit breakers used for circuit protection, among them, the tripping structure used to drive the circuit breaking action to the circuit breaking mechanism is complicated, and the transmission delay cannot respond in a short period of time, leaving enough space for potential accidents. Secondly, the complex tripping mechanism has a high cost in the process of manufacturing, assembling and debugging. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the invention provides a tripping mechanism for an earth leakage circuit breaker. [0004] In order to achieve the above purpose, the technical solution adopted by the present invention to solve the technical problems is: a tripping mechanism of an eart...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/24H01H71/50
CPCH01H71/24H01H71/50
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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