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Operation counter driving apparatus for air circuit breaker

A technology for air circuit breakers and driving equipment, which is applied to air switch parts, counting mechanisms/items, switch equipment status indication, etc., and can solve problems such as inability to perform counting functions, component damage or destruction

Active Publication Date: 2008-05-21
LSIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, due to excessive force being applied to the drive mechanism of the operation counter device, parts of the drive mechanism of the operation counter device may be damaged or destroyed, thus causing a fault condition of the operation counter device so that it cannot perform its counting function

Method used

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  • Operation counter driving apparatus for air circuit breaker
  • Operation counter driving apparatus for air circuit breaker
  • Operation counter driving apparatus for air circuit breaker

Examples

Experimental program
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Embodiment Construction

[0029] Description will now be given in detail of preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

[0030] Referring to FIG. 1 , the air circuit breaker includes a switch unit 3 that provides a driving force for an opening or closing operation of contacts and is supported between a pair of vertical side plates 6 at both sides thereof. A charging handle 1 for manually charging a closing spring (not shown) is mounted in a rotational manner at one side of the switch unit 3 . The operation counter drive device 5A of the air circuit breaker according to the first embodiment of the present invention is supported by the support bracket 60 at the other side of the switch unit 3 . Reference numeral 2 denotes a rotation shaft, which is directly or indirectly connected to the rotation shaft of the handle 1 or the rotation shaft of the motor (not shown) to store elastic potential energy in the closing spring and to provide fo...

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PUM

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Abstract

A mechanical operation counting apparatus for counting the number of times a circuit of an air circuit breaker is closed, while performing a closing or opening operation of a switching unit, is provided with a driving apparatus to prevent an impact caused by a momentarily large force applied by a closing spring or opening spring, including: a cam having an outer circumferential surface formed with a cam profile with a varying radius of curvature, a working lever having one end portion contacting the cam surface and pivoting according to a contact position thereof on the cam surface, a counter operating lever having one end contacting the working lever and pivoted by engagement with the working lever, and the counter being driven by the pivoting of the counter operating lever and counting and displaying the number of times the circuit of the air circuit breaker is closed.

Description

technical field [0001] The present invention relates to an air circuit breaker, and more particularly, to an operation counter driving device for the air circuit breaker by which a mechanical counter counting the number of opening / closing times of a circuit of the air circuit breaker is driven. Background technique [0002] In general, an air circuit breaker is a type of electrical device that can open or close a circuit between a power source and a load, or can sense such a current and automatically cut off when there is an abnormal current on the circuit due to an electrical short circuit or the like The circuit thus protects the electrical system. [0003] Therefore, an air circuit breaker includes a fixed contactor for connection at one side of the circuit's source or load; a movable contactor for connection to the other side of the circuit, which is not connected to the fixed contactor and movable to a position contacting the fixed contactor and a position to separate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/04H01H71/10G06M1/08
CPCH01H31/02H01H31/20H01H71/10H01H71/56
Inventor 李尚彻金起焕杨弘益安吉荣
Owner LSIS CO LTD
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