Packaging box
A packaging box and box technology, which is applied in the directions of packaging, transportation and packaging, and the type of packaged items, can solve the problems of short cold storage time, express items damaged by heat, and refrigeration failure of express items, so as to facilitate freezing and improve refrigeration time. Effect
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[0035] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following embodiments or drawings are used to illustrate the present invention, but not to limit the scope of the present invention.
[0036] Such as figure 1 , 2 As shown, it includes a top cover 1, an outer box body 2, a reaction module 5, a freezing shell 6, a storage box body 7, and a freezing block 22. Figure 5 As shown, the storage box 7 is installed inside the outer box 2 and located at the middle position of the outer box 2; the storage box 7 provides storage space for items that need to be refrigerated; image 3 , 7 As shown, the top cover 1 is installed on the upper side of the outer box 2; Image 6 , 9 As shown, the freezer shell 6 has a square shape. The lower side of the freezer shell 6 is provided with a freezer block 22 in the four directions, front, back, left, and right. The freezer block 22 is hollow, and the fre...
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