Household thermoelectric energy-saving system based on photovoltaic solar-thermal

The invention relates to a household thermoelectric energy-saving system based on photovoltaic solar-thermal. Distributed energy is taken as a user-side energy supply mode for comprehensive gradient utilization of solar energy. The household thermoelectric energy-saving system mainly comprises four parts: a solar acquisition part, a thermal power generation part, a refrigerating heat exchange part(5) and a hot water heat exchange part (3), wherein the solar acquisition part comprises a trough-type solar thermal collector (9) for heating heat transfer oil and a photovoltaic cell panel (8) forphotovoltaic power generation; the thermal power generation part adopts a Stirling engine (6) or a thermoelectric power generation sheet for first-gradient utilization of high-temperature heat transfer oil to realize heat power transformation; the refrigerating heat exchange part (5) adopts absorption-type refrigeration to realize second-gradient utilization of the high-temperature heat transfer oil; and the hot water heat