Coldness accumulation packing bag

Abstract

Provided is a coldness accumulation packing bag. The bag comprises a bag canister formed by a bag wall, the bag canister is internally provided with an object storage space, and the bag wall is of a multi-layer structure and internally provided with a coldness accumulation layer and a coldness preservation layer; the coldness accumulation layer is internally provided with a liquid storage chamberfilled with coldness accumulation agents; by using the coldness accumulation agents to store cold energy, an object only needs to be placed in the object storage space of the packing bag during use; the coldness accumulation agents release the cold energy to maintain low temperature of the stored object in the object storage space; an inflated temperature insulating chamber is arranged in the coldness preservation layer and outside the coldness accumulation layer, and wraps the coldness accumulation layer, so that the direct heat exchange speed between the coldness accumulation agents in the coldness accumulation layer and the external environment can be decreased, and therefore the release period of the cold energy of the coldness accumulation agents is prolonged, namely the coldness preservation time of the object in the object storage space can be prolonged. The coldness accumulation packing bag has the advantages of being simple to use, wide in application range and capable of completely solving the existing problems of the last link of cold-chain logistics in the current stage, and meeting the demands of different objects in low-temperature preservation and transportation.

Description

technical field [0001] The invention relates to the technical field of cold chain logistics, in particular to a convenient cold storage packaging bag. Background technique [0002] Coolant is usually a viscous jelly mixture composed of organic or inorganic compounds, which can absorb and store a large amount of cold energy at low temperatures, and release a large amount of cold energy when the temperature is high, so that it can maintain itself for a long time. Low temperature environment in a small range around. [0003] The main problem in the field of cold chain transportation such as food, medicine and vaccines is the broken chain of the cold chain link. Food and medicine are pre-cooled at the place of origin and loaded into the transport vehicle to reach the wholesale market at the place of sale, and finally enter the retail link for storage. Both are prone to cold chain breaks. The use of cooling agents can effectively solve the problems encountered in the pre-coolin...

AI Technical Summary

Problems solved by technology

[0004] The cold storage agent is usually packaged in the cold storage plate for use. The cold storage plate in the prior art is designed as a rectangular parallelepiped plate structure. According to the specific use, the cold storage plate is processed into various volumes, but the existing The cold storage plate in the technology is generally thick, which makes it inconvenient to use

When used in conjunction with the transport box, the traditional cold storage plate can only be placed on the surface and surroundings of the transported object, resulting in uneven transmission of cold energy in the box. When the placement is irregular, the above disadvantages are more obvious

In addition, traditional cold storage plates are only suitable for transportation in cold chain logistics and cannot be used in daily life, that is, ordinary consumers cannot touch and use them.

At the end of the cold chain logistics, consumers are still unable to smoothly transfer items that need to be kept in a refrigerated state. When transferring items, they still need to use inconvenient refrigerators, cold storage boxes, etc. for packaging

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