Unfreezing device with zero energy consumption and high specific heat capacity

The utility model provides an unfreezing device with zero energy consumption and high specific heat capacity. The zero-energy-consumption high-specific-heat-capacity unfreezing device comprises an unfreezing device body, the unfreezing device body comprises a shell, the interior of the shell is of a hollow structure, a plurality of reinforcing ribs are arranged in the shell, a plurality of cavities are formed in the shell, and microgroove capillary structures are arranged in the cavities. The protection walls are arranged on the two sides of the top of the shell; wherein the shell is of an ultrathin integrated aluminum extrusion stretching structure, the cavity is mainly a hole or a groove, the hole or the groove in the shell is filled with a phase change working medium, and the interior of the shell is pumped into a negative pressure state or a state close to a vacuum state and is subjected to sealing treatment. The unfreezing device with zero energy consumption and high specific heat capacity, provided by t