Quick thermal response composite phase change heat reservoir and preparation method thereof

The invention provides a quick thermal response composite phase change heat reservoir and a preparation method thereof, and can solve the problems of long thermal response time and low heat dissipating efficiency of a phase change heat reservoir prepared by single phase change paraffin. The quick thermal response composite phase change heat reservoir is realized through the following methods: forward and reverse continuous U-shaped heat dissipating groove cavities serially connected in a linear array sequence are formed in an inner cavity of a heat storage container; the forward U-shaped heat dissipating cavity serves as a paraffin cavity filled with phase change paraffin (4); the reverse U-shaped heat dissipating cavity serves as an alloy cavity filled with a phase change alloy (5); the high-heat-conductivity phase change alloy and the high-enthalpy-value phase change paraffin are sealed as a whole through sealing of upper and lower sealing cover plates (2); and a phase change paraffin and phase change alloy