Design and experimental study of a heat sink temperature regulating system

Environmental simulation test in near space is an important means to verify the reliability of near space vehicle. According to the different test temperature area, different temperature regulation methods are adopted. Compared with the heat source and cold source confrontation mode, the temperature regulation of the carrier refrigerant heat sink in the variable temperature zone has the advantages of good economy, simple equipment structure and excellent performance. In this paper, a temperature regulating system of expansion plate heat sink with heat conduction bath oil as medium is designed, and the equipment performance is verified by simulation and debugging test.