A reusable low-temperature packaging box

Abstract

The invention belongs to the technical field of packaging boxes, and in particular relates to a reusable low-temperature packaging box, which includes a top cover, an outer box body, a reaction module, a freezing cover, and a freezing box body. The two first freezing plates and the two second freezing plates of the box body are folded, so that the occupied volume of the freezing box body becomes smaller, and then the freezing box body can be placed in the refrigerator, and the freezing box body is subjected to freezing treatment. The two first freezing plates and the two second freezing plates are folded to reduce the occupied space of the freezing box and facilitate the freezing of the freezing box; at the same time, the reaction module designed in the present invention melts the freezing medium in the freezing box and the freezing cover Finally, the reaction module is triggered by the change of the volume of the freezing medium, so that the material on both sides of the isolation plate in the housing of the reaction module contacts and undergoes a chemical reaction, absorbing heat from the freezing medium in the freezing box and the freezing cover to make it freeze again, improving the Refrigeration time of the box.

Description

[0001] Technical field [0002] The invention belongs to the technical field of packing boxes, in particular to a reusable low-temperature packing box. Background technique [0003] With the rapid development of the express delivery industry, when transporting express items that need to be refrigerated, the outside of the express items is usually wrapped with a layer of ice cubes, and then the outside of the ice cubes is wrapped with foam to keep them warm. The block will gradually melt over time, and the cold storage of the express items will fail, causing the express items to be damaged by heat, and the cold storage time is short. The design is suitable for the express industry, and a cooler with a longer cold storage time is necessary. . [0004] The present invention designs a reusable low-temperature packaging box to solve the above problems. Contents of the invention [0005] In order to solve the above-mentioned defects in the prior art, the present invention disclo...

AI Technical Summary

Problems solved by technology

[0003] With the rapid development of the express delivery industry, when transporting express items that need to be refrigerated, the outside of the express items is usually wrapped with a layer of ice cubes, and then the outside of the ice cubes is wrapped with foam to keep them warm. The block will gradually melt over time, and the cold storage of the express items will fail, causing the express items to be damaged by heat, and the cold storage time is short. The design is suitable for the express industry, and a cooler with a longer cold storage time is necessary.

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