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Emergency locking device for circuit breaker

A technology for emergency locks and circuit breakers, applied in circuits, electrical components, electric switches, etc., can solve the problems of high parts, equipment precision, large number of device parts, increased production costs, etc., to achieve fewer parts, simple parts structure, The effect of avoiding misuse

Active Publication Date: 2021-07-23
WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the convenience of operation, the direction and movement form of the operating end of the emergency lock are often very different from the movement direction of the internal release, resulting in a large number of device parts, a long kinematic chain of the mechanism, and a large movement error
To ensure high reliability, it also depends on high parts and equipment precision, which increases production costs

Method used

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  • Emergency locking device for circuit breaker
  • Emergency locking device for circuit breaker
  • Emergency locking device for circuit breaker

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Embodiment Construction

[0022] In order to further understand the content of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings.

[0023] Based on the modular design, the circuit breaker emergency locking device of the present invention is composed of an operating part 1 and a transmission part 2, see figure 1 . The operating part 1 obtains power by the operator turning the knob, and the transmission part 2 controls the movement of the circuit breaker release driven by the operating part 1. The operating part 1 and the transmission part 2 are respectively fixed on the first mounting bracket 11 and the second mounting bracket 11. On the mounting bracket 21, there is no distance requirement between the two.

[0024] The purpose of the present invention is to overcome the problems existing in the existing circuit breaker emergency locking device: (1) Redundant mechanism, many important parts and complex shapes, high production cost; (2...

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Abstract

The invention discloses an emergency locking device for a circuit breaker and with clearance compensation capability. The emergency locking device consists of an operation part and a transmission part, wherein the operation part and the transmission part are separately arranged on a circuit breaker frame, and the transmission part sleeves the operation part. The emergency locking device has the functions of shortening a kinematic chain and eliminating the motion gap of a release, and is high in reliability. The device has the characteristics of modularization and fool-proof operation process, the number of components is small, mechanism parts are simple, and the problems that a mechanism is high in part machining requirement, high in production cost and difficult to assemble are solved.

Description

technical field [0001] The invention belongs to the field of circuit breakers, in particular to an emergency locking device for circuit breakers with gap compensation capability. Background technique [0002] A circuit breaker is a power distribution device used in the power grid, which can connect, carry and break the current under normal circuit conditions, and can also be used under specified abnormal conditions (such as overload, short circuit, undervoltage and other faults) A switching device that turns on, carries a certain time and breaks current. [0003] For power systems in special usage scenarios (such as ship power systems), circuit breakers are often required to be additionally equipped with emergency locking devices in order to control overcurrent releases. When the emergency lock is in the automatic position, the overcurrent release operates normally; when the emergency lock is in the locked position, the overcurrent release cannot disconnect the closed circu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/10H01H9/20
CPCH01H71/10H01H9/20
Inventor 伍轩马子文赵成宏徐凯孔凡良
Owner WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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