Parallel composite heat storage structure capable of simultaneously using latent heat and sensible heat and warmer

The parallel composite heat storage structure comprises a heat storage space with a certain heat exchange face and a certain heat exchange direction, the heat storage space is filled with a first-stage phase change material, second-stage phase change materials are arranged in the first-stage phase change material at intervals, and the second-stage phase change materials are arranged in the second-stage phase change material at intervals. Wherein the phase change points of the first-stage phase change material and the second-stage phase change material are different and are both lower than 200 DEG C. The parallel type two-stage heat storage design is adopted, the first-stage phase change material has the main heat storage function, the second-stage phase change material has the regulation and control function, heat compensation with the stable temperature can be provided in the sensible heat release stage of the first-stage phase change material, the sensible heat release thermocline problem ...