Photovoltaic air conditioning system

The utility model provides a photovoltaic air conditioning system. The photovoltaic air conditioning system comprises a photovoltaic cell panel, a thermoelectric refrigeration element, an indoor space, a heat exchanger, a control circuit and a hot water storage tank, wherein the photovoltaic cell panel is used for receiving light energy and converting the light energy into electric energy; the thermoelectric refrigeration element is provided with a cold end and a hot end, the hot end faces the photovoltaic cell panel, and the cold end faces the indoor space; the indoor space is provided with an indoor temperature sensor; the heat exchanger is arranged between the back heat dissipation end of the photovoltaic cell panel and the hot end of the thermoelectric refrigeration element; the control circuit is electrically connected with the photovoltaic cell panel, the indoor temperature sensor and the thermoelectric refrigeration element; the hot water storage tank is connected with the heat exchanger through a water pump and a flow regulating valve. According to the photovoltaic air conditioning system, heat of the thermoelectric refrigeration element and the photovoltaic cell panel is used, the service life of the photovoltaic cell panel is prolonged, photovoltaic power generation efficiency and refrigeration performance coefficients are improved, air conditioning efficiency is improved effectively, a certain amount of hot water can be provided for life, the energy utilization efficiency of the whole system is improved remarkably, and electric energy is saved.