Circuit breaker with temperature detection function

Abstract

The invention relates to a circuit breaker with temperature detection function. The circuit breaker comprises a box body which is made from the insulating flame resistance material, wherein the box body also comprises a first circuit break unit containing an actuating mechanism used to realize the on-offs of the load and the power circuit in normal condition, a temperature sensor which is used to detect the inner temperature of the box body and output the detection signal of a characterization temperature value, and a second circuit break control unit which is used to control the first circuit break unit to generate the circuit break action, when the temperature value exceed a threshold.

Description

technical field [0001] The invention relates to a circuit breaker, in particular to an intelligent circuit breaker capable of detecting the internal contact temperature of the circuit breaker. Background technique [0002] For the power sector, the switch and circuit breaker is an essential device to ensure the safety of electricity consumption and to switch lines. The existing circuit breakers include high and low voltage circuit breakers, etc. For their internal structure, please refer to figure 1 As shown, it takes a miniature circuit breaker as an example, which includes: a box body 001, which is made of insulating and flame-retardant materials, and has the following structure inside: [0003] A live wire access port 032 and a live wire output port 037 are used to connect to the power line; an action mechanism includes: a handle 021, which has an operating end arranged outside the box body 001 to perform circuit On-off control; a movable contact piece 024, with a movabl...

AI Technical Summary

Problems solved by technology

[0005] First of all, the current circuit breaker input and output terminals do not have temperature detection and control functions. In the past, fires caused by excessive temperature were not uncommon, which also caused hidden dangers to normal power supply;

[0006] Secondly, there is no obvious difference between different circuit breakers, especially some circuit breakers with special functions, such as prepaid circuit breakers, once replaced, it will cause confusion to electricity management, so the "identity" of circuit breakers is very important

[0007] Finally, as the electricity management department is not aware of the current use of the circuit breakers at the bottom layer, remote information transmission is especially needed

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