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Circuit breaker closing and opening indication mechanism

A technology of indicating mechanism and circuit breaker, which is applied in the direction of switchgear status indication, instrument, counting mechanism/item, etc., can solve the problems of reducing the reliability of circuit breakers, increasing the cost of circuit breakers, and the number of parts, etc., and achieve mass production adaptability Improvement and adjustment are simple and convenient, and the effect of simple mechanism parts

Active Publication Date: 2019-03-22
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

[0003] Most of the existing circuit breaker closing and opening indicating mechanisms adopt cam-link transmission mechanism and spring energy storage mechanism. cost, and also greatly reduces the reliability of the circuit breaker

Method used

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  • Circuit breaker closing and opening indication mechanism
  • Circuit breaker closing and opening indication mechanism
  • Circuit breaker closing and opening indication mechanism

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Embodiment Construction

[0030] 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.

[0031] Such as figure 1 As shown, based on the modular design, the closing and opening indicating mechanism of the circuit breaker of the present invention is composed of three parts: the driving part 1 , the indicating part 2 and the counting part 3 .

[0032] see Figure 4 , Figure 5 and Figure 6 , said jack rod transmission part 1 mainly includes a first transmission rod 11 , a second transmission rod 13 , a third transmission rod 15 and a housing groove 18 .

[0033] The push rod transmission part 1 includes a second transmission rod 13 and a third transmission rod 15 hinged to one end of the second transmission rod 13 through a second pin 14, and also includes a third transmission rod 15 hinged to the other end of the second transmission rod 13. The first transmission rod 11.

[0034] The firs...

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PUM

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Abstract

The invention discloses a circuit breaker closing and opening indication mechanism, which comprises an ejector rod driving portion, an indication portion and a counting portion, wherein the ejector rod driving portion includes a first driving rod, a second driving rod and a third driving rod; the third driving rod is movably sleeved with a shell groove; the indication portion includes a bent plate, a firing pin, an indication plate, a second return spring, a third pin, a fourth pin, a roller and a torsion spring; the counting portion includes a bent plate, a bent rod, a counter, a baffle plateand a square sleeve; the ejector rod driving portion and the indication portion are abutted and installed through the shell groove, and the ejector rod driving portion and the counting portion are connected together. The structure is greatly simplified through the modular design; the parts of each portion of the mechanism are simple, the adjustment range is large, the adjustment is simple and convenient, the problems of high requirements of mechanism abutment for parts processing and difficult assembly are avoided; the design and production cost is reduced, and the adaptability of batch production is improved; and the adoption of the mechanical counter further greatly improves the counting accuracy.

Description

technical field [0001] The invention belongs to the technical field of circuit breakers, and in particular relates to a closing and opening indicating mechanism of a circuit breaker. 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 single-phase ground fault) When) switching on, carrying a certain time and breaking current switching devices. Any failure of a circuit breaker may cause huge economic losses or even casualties. Usually, the contact system and mechanism transmission system of the circuit breaker are assembled in the circuit breaker shell, which makes it impossible to directly observe and judge the closing and opening status of the circuit breaker, and master the closing and opening status of the circuit breaker when performin...

Claims

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Application Information

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IPC IPC(8): H01H71/04G06M1/02
CPCG06M1/028H01H71/04
Inventor 马子文孔凡良祝聪肖文华赵成宏
Owner WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST
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