A long-acting cold keeping device for cold chain preservation box

Abstract

The utility model relates to the technical field of heat preservation, concretely to a long -term cold keeping device for cold chain heat preservation box, including water permeable membrane bag, water absorbing resin and phase change medium, the cavity is opened in water permeable membrane bag, and water permeable membrane bag is equipped with membrane bag water permeable surface and membrane bag waterproof surface, there is water absorbing resin in the cavity linear array, water absorbing resin is used for absorbing phase change medium, phase change medium evenly distributes in the cavity, the cold keeping device device of the utility model can significantly reduce 2-8 DEG C heat preservation box empty box goods taking stage's time loss, reduces the temperature out of control risk of goods taking and transportation in remote area, simultaneously, the main body material, packing material and adsorbing material of the device are all ordinary raw materials, and the material is easy to get, safe, environmental protection, and the preparation process is simple, and the device uses the process and the operation logic of the general heat preservation box in the industry are consistent, do not increase the redundant operation, the device can be recycled, and also can be used as ordinary solid waste treatment in the terminal.

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