Data recording and power-saving device for electric energy meter

The utility model relates to a data recording and power-saving device for an electric energy meter, which comprises an infrared sampling loop, a power supply management module, a measurement module ADE7755, a MCU single chip, a stand-by battery, a 485 communication interface, an infrared communication interface and the like, wherein the infrared sampling loop consists of an infrared light sensitive tube, a resistance, a capacitance and a field effect transistor; the power supply management module consists of a transformer, a voltage stabilizing tube, a diode, a capacitance, a resistance and anintegrated block and has three ways of voltage output; and the infrared sampling loop and the power supply management module are respectively connected with the input end of the MCU single chip, themeasurement module ADE7755, the 485 communication interface and the stand-by battery. The data recording and power-saving device for the electric energy meter has the advantages of simple structure and convenient use, is applicable to the electric energy meters with various models, and can be widely applied to the power anti-theft field of power systems.