Thermoelectric coupling system based on efficient photovoltaic and photo-thermal integrated assembly

The utility model relates to a thermoelectric coupling system based on a high-efficiency photovoltaic photo-thermal integrated assembly, which belongs to the technical field of solar photovoltaic photo-thermal and comprises a photovoltaic assembly body, a connecting cavity is fixed on one side of the photovoltaic assembly body, cooling liquid is filled in the connecting cavity, and a heat dissipation back plate attached to the photovoltaic assembly body is arranged in the connecting cavity. The water heater further comprises an evaporation heat absorption device, the evaporation heat absorption device comprises a compressor, a condenser, a throttling valve and a coil pipe arranged in the connecting cavity, the compressor, the condenser, the throttling valve and the coil pipe are sequentially communicated through connecting pipelines to form a loop, the condenser is communicated with an outlet pipe and an inlet pipe, and the inlet pipe is connected with a water source to be heated. The connecting cavity is con