Household frequency conversion air source heat pump water heater

The invention discloses a household frequency conversion air source heat pump water heater. The household frequency conversion air source heat pump water heater comprises a heat pump water heater bodyand a heat pump water heater heat exchange system. The heat pump water heater body is provided with a draught fan top cover, a draught fan, a fin evaporator, an air filter net, a low-pressure pressure meter, an electric board frame, the heat pump water heater heat exchange system, a compressor, a heat exchanger, an evaporator, a gas-liquid separator, a heat exchange device, an expansion pipe, a filter, an economizer, a liquid storage tank and a water mixing valve. The heat pump water heater body works through electrification via a heat pump unit, low-temperature heat in surrounding air is absorbed to the heat exchanger, and the heat exchanger is used for transmitting heat into water through the heat transfer principle to heat water; and under the suction force action of the draught fan, outdoor ordinary air enter