An automatic reclosing device for a circuit breaker

Abstract

The invention provides an automatic reclosing lock device of a breaker. The automatic reclosing lock device comprises a drive motor, a linkage tripping mechanism, a transmission gear mechanism and a breaker handle mechanism, wherein the transmission gear mechanism comprises a first transmission gear, a second transmission gear and a third transmission gear which are adjacently meshed with one other, a cam portion of the second transmission gear can drive a push rod to shift a tripping rod, so as to quickly separate the breaker, the second transmission gear can drive an incomplete gear to rotate continuously, and the incomplete gear and the third transmission gear are in mesh transmission to drive a handle to switch on automatically through a linkage rotation shaft. The automatic reclosing lock device has the advantages of being reliable in transmission, strong in stability and capable of enabling the second transmission gear not to be prone to shaking or rising; thus, the automatic reclosing lock device can avoid the problem of tripping clamping stagnation or tripping slide when being matched with a linkage tripping part, the use performance of a product is favorably improved, and the service life of the product is favorably prolonged.

Description

technical field [0001] The invention relates to the field of low-voltage electrical appliances, in particular to an automatic reclosing device for a circuit breaker. Background technique [0002] With the promotion of the smart grid, the use of electric energy metering devices such as IC card prepaid meters is becoming more and more popular. The circuit breaker that needs to be manually operated can no longer meet the requirements of the smart grid. Therefore, it is necessary to match the breaker specially used for the prepaid meter The circuit breaker product can realize automatic reclosing operation, transmit a control signal, and realize remote control, so that the circuit breaker can be automatically closed or opened, without the need for staff to manually open and close, effectively saving manpower and material resources . [0003] According to the intelligent requirements of my country's power supply network, the small circuit breaker of the terminal actuator of the p...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the technical defect that the linkage gear transmission in the automatic opening and closing drive mechanism of the prior art is unstable, easy to shake or tilt, and it is easy to trip, get stuck, or even stuck, so as to provide a performance A stable, safe and reliable automatic reclosing device for circuit breakers

[0007] The second technical problem to be solved by the present invention is that the existing tripping linkage has no driving force, and relying on the reset of the trip lever is likely to cause technical defects of the sliding buckle, so as to provide a circuit breaker that does not need to rely on the reset of the trip lever to cooperate with the circuit breaker. An automatic reclosing device of a circuit breaker in normal use

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