An anti-runaway circuit chip and an anti-failure anti-leakage protector

Abstract

The invention relates to an anti-out-of-control circuit chip and an anti-failure anti-creep protector. According to a technical scheme, an anti-out-of-control circuit chip serves as a core device; a signal input terminal and a security control input terminal or an external base setting terminal of the chip are connected with a secondary coil of a zero-sequence current transformer; two output terminals of the chip are connected with a drive circuit or an execution circuit; and then an alternating-current power supply is controlled. A leakage signal triggers the core circuit to be latched and sealed and the alternating-current power supply is cut off, thereby realizing anti-electric-shock security protection. A falling protector inside the core circuit is used for monitoring abnormal faults like breaking or short circuit of the coil as well as an open-circuit or short-circuit fault at a certain place of the circuit, thereby realizing anti-out-of-control and anti-failure effects. The security control input terminal or an external base setting terminal of the core circuit is connected with a thermistor NTC to monitor a contact temperature of a connecting terminal; and over-heating protection control is carried out. Therefore, when a fault of equipment or an over-heating phenomenon occurs, anti-over-heating, anti-failure, and anti-creep effects can be realized and thus the personal safety is guaranteed.

Description

technical field [0001] The invention relates to a core control circuit and an anti-leakage or electric shock protector, in particular to an anti-runaway circuit chip and an anti-failure anti-leakage protector or an anti-overheat anti-failure anti-leakage protector. Background technique [0002] In order to verify the novelty of the present invention, the designer consulted a large number of relevant technical materials (professional books, newspapers and periodicals), and also searched relevant patent documents, but did not find the anti-runaway circuit chip and anti-failure anti-leakage protector described in the present invention. [0003] There are many kinds of current leakage protectors running on the grid, which can effectively protect and control the leakage of AC electrical appliances or electric shock to the human body under normal conditions, but there are generally two fatal defects: first, when the leakage protector itself If an abnormal fault occurs, its protect...

AI Technical Summary

Problems solved by technology

[0004] The present invention mainly solves the technical problems that the existing popular leakage protector and its dedicated core control circuit often lose control due to their own abnormal faults, fail to cut off the power supply in time, or cause fires due to overheating, which pose potential safety hazards and seriously threaten personal safety; It provides an "essential guarantee of safety" that can perform safety protection control in a timely and reliable manner when an abnormal fault or overheating occurs in itself, forcefully disconnect the AC power supply, and prevent failure and electric shock or prevent overheating, failure and electric shock. Anti-leakage protector and its anti-runaway circuit chip

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