Device for protecting closing coil of intelligent universal circuit breaker

Abstract

The invention relates to a device for protecting a closing coil of an intelligent universal circuit breaker. The device comprises a universal circuit breaker body, wherein the universal circuit breaker body comprises a closing coil, a closing contact, a closing failure protection device, a single-chip microcomputer, a motor, a transmission gear, an energy storage mechanism and an energy storage spring, wherein the closing failure protection device is installed on the right side of the universal circuit breaker body, the single-chip microcomputer is installed on the closing failure protection device, the closing coil is arranged on the left side of the closing failure protection device, the closing contact is arranged in the closing coil, the motor is installed below the closing failure protection device, the motor is connected above transmission gear, the left end of the transmission gear is connected with the energy storage mechanism, and the energy storage spring is arranged in the energy storage mechanism. The device is scientific, reasonable, intelligent and optimized, can sensitively detect the closing condition of the closing coil, avoids the phenomenon that the closing coilis continuously closed and even burnt due to insufficient energy storage, and is beneficial to prolonging the service life of the closing contact of the universal circuit breaker.

Description

technical field [0001] The invention belongs to the field of circuit breakers, and in particular relates to a device based on protecting the closing coil of an intelligent universal circuit breaker. Background technique [0002] Universal circuit breaker, also known as frame circuit breaker, is a mechanical switching device that can connect, carry and break current under normal circuit conditions, and can also connect, carry and break current for a certain period of time under specified abnormal circuit conditions. . At present, some universal circuit breakers on the market often have insufficient energy storage in the motor during the closing and switching process, and thus continue to close until the closing coil burns out, which seriously affects the line operation and causes certain damage to customers. The economic loss cannot meet the needs of the market. Contents of the invention [0003] The present invention aims to solve the above defects, and provides a device...

AI Technical Summary

Problems solved by technology

At present, some universal circuit breakers on the market often have insufficient energy storage in the motor during the closing and switching process, and thus continue to close until the closing coil burns out, which seriously affects the line operation and causes certain damage to customers. economic loss, unable to meet market demand

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