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Latching device for circuit breaker

A technology of locking devices and circuit breakers, which is applied in the direction of quick-action devices, emergency protection devices, circuits, etc., and can solve the problems of high assembly costs and the possibility of increased loss of remote control release parts, etc.

Inactive Publication Date: 2013-10-09
EATON ELECTRICAL IP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The remote control release consists of many components, which results in high assembly costs
The sequence of operations involves a complex sequence of mechanical operations that increases the likelihood of wear of the remote control release

Method used

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  • Latching device for circuit breaker
  • Latching device for circuit breaker
  • Latching device for circuit breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] figure 1 An inventive latching arrangement for a circuit breaker is disclosed. The locking device comprises a manually operated toggle 2 which is rotatably mounted at a fixed mounting point. The toggle 2 is manually movable between an off position and a ready-to-operate point. The locking device also includes a bellcrank rod operatively connected to the trigger 2 . The bell crank rod comprises two crank lever arms 11 , 12 which are movably connected at a bearing pin 13 of the bell crank rod. The support pin 13 is linked with the trigger 2 by the spring 3 . The free end of the first arm 11 of the bellcrank rod is movably connected to the support rod 7 . The free end of the second arm 12 of the bell crank is movably connected to a movable contact 52 of the circuit breaker.

[0025] If the trigger 2 is in the off position, the spring retracts the two arms 11 , 12 of the bellcrank rod so that the movable contact 52 does not contact the fixed contact 51 of the circuit b...

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PUM

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Abstract

Latching device for a circuit breaker comprising - a manual operating toggle (2) which is moveable arranged between an OFF-position and an operation-readiness position, - a moveable contact (52) and a fixed contact (51), wherein the moveable contact (52) is adapted to open and close the main circuit of the circuit breaker, - an energy storage mechanism which stores an actuating force of the toggle (2) when the toggle (2) is moved from the OFF-position to the operation-readiness position and is adapted to exert the stored force to the moveable contact (52) to close the main circuit of the circuit breaker, characterized in that the latching device further comprises a removable retention lever (4) for preventing the movement of the moveable contact (52) into a closing position if the energy storage mechanism exerts the stored force to the moveable contact (52).

Description

technical field [0001] The present invention relates to locking devices for circuit breakers. Background technique [0002] Remote control releases are known for remotely turning on or off a circuit breaker. Known remote control releases are typically mounted on standard circuit breakers and are operatively connected to the breaker's lever. The remote control release includes electronics adapted to move the toggle of the circuit breaker to the on or off position via the mechanical assembly. In order to close the circuit breaker by remotely controlling the release, the operator needs to activate the electronic device, which may be a motor that closes the electrical contacts from a remote location. [0003] The known mechanical assembly of the remote control release comprises a spring-operated storage, wherein the spring-operated storage of the remote control release is adapted to clamp the spring-operated storage of the latching device so that the trigger of the latching de...

Claims

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Application Information

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IPC IPC(8): H01H71/50H01H1/52
CPCH01H2071/565H01H5/10H01H71/505H01H1/52
Inventor V·海因斯D·科赫G·弗莱曼H-J·马德尔W·库奇
Owner EATON ELECTRICAL IP
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