Photovoltaic air-conditioner heat-pump water heater

The utility model provides a photovoltaic air-conditioner heat-pump water heater which comprises an air-conditioner heat-pump system, a photovoltaic cell heat supply system, a photovoltaic cell power supply system and a control unit. The air-conditioner heat-pump system comprises a compressor, a four-way valve, a condenser, an evaporator, a throttling device and refrigerant pipelines, wherein the refrigerant pipelines are connected with the compressor, the four-way valve, the condenser, the evaporator and the throttling device. The photovoltaic cell heat supply system comprises a photovoltaic cell panel, a radiator arranged on the back face of the photovoltaic cell panel, and a heat storage water tank. The photovoltaic cell power supply system comprises the photovoltaic cell panel, a storage battery pack which is electrically connected with the photovoltaic cell panel, and a power inverter. The control unit is connected with the storage battery pack, the power inverter and the compressor. According to the photovoltaic air-conditioner heat-pump water heater, the heat of the condenser of the air-conditioner heat-pump system and the heat of the photovoltaic cell panel of the photovoltaic cell power supply system are used for heating domestic water, and on one hand, the service life of the photovoltaic cell panel is prolonged; on the other hand, the photovoltaic power generation efficiency, the refrigeration performance coefficient and the air-conditioner heat-pump efficiency are improved; the energy utilization efficiency of the entire set of system is obliviously improved, and electric energy is saved.