Power consumption management device

Abstract

The invention discloses a power consumption management device. The power consumption management device comprises a power source circuit, a voltage sampling circuit, a microprocessor, a working state indication circuit, a drive circuit, a magnetic latching relay and an energy storage filter capacitor; the input end of the power source circuit is the network voltage, and the power source circuit supplies power to the microprocessor, the drive circuit, the magnetic latching relay and the energy storage filter capacitor; the input end of the voltage sampling circuit is the network voltage, and the voltage sampling circuit outputs voltage signals to the microprocessor; the microprocessor outputs working state information to the working state indication circuit and outputs drive signals to the drive circuit, the drive circuit drives the magnetic latching relay to conduct suction or releasing, and the energy storage filter capacitor provides instant holding power energy for the magnetic latching relay. According to the power consumption management device, the microprocessor is adopted for conducting control processing, the voltage sampling accuracy is improved, the delayed time error is small, adjustment is simple, automatic recovery can be achieved, and the power consumption management device is convenient to operate and low in energy consumption.

Description

technical field [0001] The invention relates to the field of circuit management, in particular to a power consumption manager. Background technique [0002] With the continuous development of my country's industry, various automated and digital high-end household appliances have been widely used, so the requirements for the power supply quality of the power system are getting higher and higher. It is no longer limited to electric lighting, but the voltage Range, frequency and even harmonics all make high demands. [0003] At present, in the power supply of building electrical appliances and rural lighting, single-phase power supply overvoltage or undervoltage often occurs due to disconnection of the neutral line, reverse connection of the phase line and the neutral line, or serious unbalanced three-phase loads. Under certain circumstances, it will damage the service life of household appliances. [0004] At present, over-voltage and under-voltage protection products mainly ...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a power consumption manager to solve the problems such as time-consuming adjustment of undervoltage and overvoltage when undervoltage and overvoltage occur in the power consumption process, and inconvenient operation.

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