Thermal management device and method for space photoelectric imaging element on satellite

The invention relates to the technical field of satellite photoelectric measurement and perception, in particular to a thermal management device and method for a space photoelectric imaging element on a satellite, and the thermal management device comprises a support, a metal shell, a circuit board, a secondary TEC refrigeration assembly, a heat sink, a miniature heat pipe and a heat transfer fixed bottom plate. The heat transfer fixing bottom plate is arranged in the satellite cabin and is serially connected with the heat sink, the miniature heat pipe and the satellite cabin constant-temperature plate, the heat sink, the miniature heat pipe and the heat transfer fixing bottom plate form an integral heat transfer chain, the large heat pipe is pre-buried in the satellite cabin constant-temperature plate, heat of the heat transfer fixing bottom plate is conducted out through circulation of a working medium in the heat pipe, and whole-process heat management of the photoelectric imaging element is completed. Hea