Insulated packaging box and processing method thereof

Abstract

The invention relates to a heat preservation packing case and a processing method thereof. The heat preservation packing case comprises a main body and an interlayer; the main body comprises an inner layer, an outer layer and a connecting part; the inner layer and the outer layer are each of an one-end-opened barrel structure; the outer layer is arranged at the periphery of the inner layer; the inner layer is connected with the outer layer at openings through the connecting part; the inner layer, the outer layer and the connecting part jointly define a vacuum containing cavity; a vacuum orifice is formed in the main body; the vacuum containing cavity can be vacuumized through the vacuum orifice; the interlayer is contained in the vacuum containing cavity; the two sides of the interlayer abut against the inner layer and the outer layer correspondingly; and the interior of the interlayer is of a porous structure or of a three-dimensional network structure. The sealed vacuum containing cavity is formed in the main body of the heat preservation packing case, the vacuum containing cavity communicates with space at the bottom surface and the side surfaces of the main body, and various parts of the interlayer are located in the same vacuum environment accordingly, so that the heat preservation performances of various places of a case body obtained by combining the main body and the interlayer are consistent, and the heat preservation effect of the heat preservation packing case is improved to a great degree.

Description

technical field [0001] The invention relates to the technical field of cold chain transportation equipment, in particular to an insulated packaging box and a processing method thereof. Background technique [0002] At present, in the field of cold chain transportation, many items such as medicines and food need to be kept at a certain temperature or within a certain temperature range for a certain period of time during the process of storage, turnover, and transportation. In the thermal insulation packaging box, the thermal insulation packaging box is transferred together with the logistics transportation of the goods. [0003] However, most of the conventional thermal insulation packaging boxes are foam boxes formed by foam material molds or spliced ​​boxes composed of multiple panels. These simple thermal insulation packaging boxes generally have poor thermal insulation effects and cannot achieve long-term heat insulation. effect, resulting in the inability to store or tr...

AI Technical Summary

Problems solved by technology

[0003] However, most of the conventional thermal insulation packaging boxes are foam boxes formed by foam material molds or spliced ​​boxes composed of multiple panels. These simple thermal insulation packaging boxes generally have poor thermal insulation effects and cannot achieve long-term heat insulation. effect, resulting in the inability to store or transport medicines, food and other items for a long time

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