Energy storage release mechanism of undervoltage release

Abstract

The invention discloses an energy storage tripping mechanism of an under-voltage tripper. The energy storage tripping mechanism comprises an energy storage spring and a tripping rod, wherein the energy storage spring is arranged between the under-voltage tripper and a hook, and the tail end of the tripping rod is connected onto the energy storage spring. Preset voltage is applied to the under-voltage tripper to lead the under-voltage tripper to keep at the reset position, the tripping end of the tripping rod releases from a breaker body structure, and the tripping rod keeps at the compressed energy storage position of the energy storage spring. When preset voltage is not applied to the under-voltage tripper or voltage smaller than the preset voltage is applied to the under-voltage tripper to lead the under-voltage tripper to not keep at the reset position or not reach the tripping position, the tripping end of the tripping rod is pressed on the breaker body structure, and the tripping rod keeps at the releasing position of the energy storage spring. The energy storage tripping mechanism of the under-voltage tripper enables the under-voltage tripper to obtain large force during action through several simple parts, incapability of releasing of the tripping deivce of a breaker is avoided, other parts of the under-voltage tripper can be continued to be used, and a shunt release tripper can be generally used. Simultaneously, the energy storage tripping mechanism can solve the problem that the under-voltage trippers in different housing levels of the breaker in the same model are difficult to use generally due to different action forces.

Description

technical field [0001] The invention relates to the field of low-voltage electrical appliances, and more particularly, to an energy storage release mechanism of an undervoltage release. Background technique [0002] Among the accessories of the circuit breaker, the undervoltage release is a very important accessory. In the normal working state, the switch remains closed, and the push rod of the undervoltage release has not been in contact with the release device. Once an undervoltage situation occurs, the push rod of the undervoltage release will act to hit the tripping device, causing the circuit breaker to trip and separate. In practical applications, the undervoltage release and another similar accessory shunt release are often made into parts that can be used in common, so that the manufacturing cost will be much reduced. However, since the direction of the force of the shunt release and the force-applying part is the same, and the direction of the force of the under-v...

AI Technical Summary

Problems solved by technology

However, since the direction of the force of the shunt release is the same as that of the force-applying part, and the direction of the force of the undervoltage release is opposite to that of the force-applying part, the force-applying part that can also make the shunt release act and trip the circuit breaker is It is not necessarily possible to make the undervoltage release act and trip the circuit breaker

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