Day-night temperature difference power generation device based on solar energy

The invention discloses a day-night temperature difference power generation device based on solar energy. The phase change of a liquid in a heat pipe is utilized so as to achieve temperature difference of the two ends of the heat pipe, and current can be generated by a loop by using a power generation principle of a temperature difference power generation sheet. By the day-night temperature difference power generation device, the situation of leakage and poor heat storage effect caused by oil used as a heat storage material in the prior art is prevented, a heat dissipating method adopting by the invention is to provide a heat collecting device with fins, through increasing the area of contact between the heat collecting device and the outside, heat dissipation function is further achieved, heat is not dissipated by using a liquid flowing mode in the prior art, and the limit on application environment is reduced.