A driving power circuit for an electric dehumidifier

Abstract

The invention provides a driving power supply circuit for an electric dehumidifier. The driving power supply circuit comprises a main chip, a control board and a control board power supply circuit; the control board is connected with an H bridge, the control board power supply circuit, a fault warning circuit and a control circuit separately through a 16-core flat cable; the control circuit comprises an EMI filter circuit; the input alternating current power supply is filtered by the EMI filter circuit, and converted into direct current through a power frequency rectifying part, and then the direct current is converted into high frequency pulse voltage through the main chip; meanwhile, the electric energy is converted into magnetic energy through a transformer, and the magnetic energy is transmitted to the secondary side of the transformer; the magnetic energy in the secondary side of the transformer is converted into direct current through a high frequency rectifying part, and the direct current is connected with a fan, the H bridge, the main chip and the control board power supply circuit separately; and the H bridge outputs the power supply with variable a positive electrode and a negative electrode by changing the magnitude of electrical levels, and controls the output and the disconnection of the power supply, and the power supply supplies power to enable a load refrigeration piece to work. The constant current circuit has the characteristics of constant current and constant voltage, and has the functions of input overload protection, overvoltage protection, lightning stroke protection and surge protection, as well as the over-temperature protection in work.

Description

technical field [0001] The invention relates to a power supply circuit, in particular to a drive power supply circuit for an electric dehumidifier. Background technique [0002] Dehumidifiers, also known as dehumidifiers, dryers, or dehumidifiers, remove moisture from the air. A dehumidifier is an air conditioner that puts the heating and cooling coils in the same box, that is, a fan pumps the indoor air to the cooling coil of the air conditioner to condense the moisture, and then the dry air passes through the heating coil and is heated to the original temperature. A conventional dehumidifier consists of a compressor, a heat exchanger, a fan, a water container, a casing and a controller. Its working principle is: the humid air is sucked into the machine by the fan, and passes through the heat exchanger. At this time, the water molecules in the air are condensed into water droplets, and the dry air after treatment is discharged outside the machine. This cycle keeps the indo...

AI Technical Summary

Problems solved by technology

Its circuit can only achieve constant voltage function, but not constant current function, resulting in low dehumidification efficiency of the dehumidifier, which in turn affects the service life of the entire dehumidifier

Therefore, it cannot meet the current-carrying value and non-overflow characteristics of the dehumidifier, and needs to be improved.

Images