Power utilization detection apparatus

Abstract

The invention relates to a power utilization detection apparatus. The power utilization detection apparatus comprises a self-inspection or electric leakage selection trigger unit used for selecting an electric leakage fault detection mode or a self-inspection mode, a self-inspection unit used for periodically generating an analog electric leakage signal in the self-inspection mode, and an electric leakage fault detection unit used for detecting an electric leakage fault signal in the electric leakage fault detection mode and detecting the analog electric leakage signal in the self-inspection mode, wherein the self-inspection or electric leakage selection trigger unit is also used for disconnecting a power supply in an electric leakage fault and transmitting a self-inspection result to the self-inspection unit according to whether the electric leakage fault detection unit detects the analog electric leakage signal or not; and the self-inspection unit is also used for displaying the self-inspection result. According to the technical schema provided by the invention, the security coefficient of the power utilization detection apparatus is greatly improved.

Description

technical field [0001] The invention relates to the field of household circuits, in particular to an electricity detection device. Background technique [0002] With the continuous improvement of people's material living standards and the increasing popularity of the use of electrical appliances, people are paying more and more attention to the safety of electrical appliances. Therefore, a leakage detection device with a protective function emerges at the historic moment. But in actual use, on the one hand, not every user will comply with the use requirements of "testing before use", so that it is impossible to guarantee that the function of the leakage circuit breaker before use is normal; The protector has been tested before use, but during use, if the product leakage protection function is lost (for example, an electric water heater with a leakage protection plug, the protection function is lost due to damage to some parts during live use), when When electrical leakage ...

AI Technical Summary

Problems solved by technology

But in actual use, on the one hand, not every user will comply with the requirements of "testing before use", so that it is impossible to guarantee that the function of the leakage circuit breaker before use is normal; The protector has been tested before use, but during use, if the product leakage protection function is lost (such as an electric water heater with a leakage protection plug, the protection function is lost due to damage to some parts during live use), when When electrical leakage occurs, the leakage protector cannot give a warning of leakage or cut off the power supply, which may lead to personal injury accidents

[0003] Furthermore, the existing solenoid-type leakage protector cannot meet the functional requirements of automatic power-on of electrical appliances

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