Refrigeration and freezing device

Abstract

The invention provides a refrigeration and freezing device. The refrigeration and freezing device comprises a box body and an air regulating membrane assembly. The box body is provided with a liner, ashell and a heat preservation layer; the liner is provided with a storage space which is internally provided with a storage container; and the storage container is internally provided with an air regulating fresh-keeping space. The air regulating membrane assembly is configured to enable oxygen in an air flow of the ambient space of the air regulating membrane assembly to more permeate air regulating membranes to enter oxygen-enriched air collecting cavities relative to nitrogen in the air flow of the ambient space of the air regulating membrane assembly. The storage container is composed ofa top cover and a bottom box, a cavity is formed in the lower surface of the top cover, and the air regulating membrane assembly is arranged in the cavity. In the refrigeration and freezing device, aspace for mounting the air regulating membrane assembly does not need to be independently arranged, an opening for enabling the air regulating membrane assembly and the air regulating fresh-keeping space to communicate also does not need to be formed in the top face of the storage container, thus the surface of the storage container of the refrigeration and freezing device is complete, a gap basically does not exist, and the air tightness of the storage container is guaranteed.

Description

Technical field [0001] The invention relates to the technical field of refrigerator storage, in particular to a refrigerating and freezing device. Background technique [0002] Refrigerator is a kind of refrigeration equipment that keeps a constant low temperature, and it is also a kind of civilian product that keeps food or other items in a constant low temperature and cold state. With the improvement of the quality of life, consumers have higher and higher requirements for the preservation of stored food, especially the color and taste of the food. Therefore, the stored food should also ensure that the color, taste, and freshness of the food remain unchanged as much as possible during the storage period. At present, in order to better store food, there is only one kind of vacuum preservation. The frequently used vacuum preservation methods are vacuum bag preservation and vacuum storage compartment preservation. [0003] The use of vacuum bags to preserve freshness requires con...

AI Technical Summary

Problems solved by technology

[0004] The vacuum storage room is used to keep fresh. Since the box body is a rigid structure, it must be kept in a vacuum state. The requirements for the vacuum system and the sealing performance of the refrigerator are very high. More air, more energy consumption

Moreover, in a vacuum environment, it is difficult for food to receive cold, which is not conducive to food storage.

In addition, due to the vacuum environment, the user needs to spend a lot of effort to open the refrigerator door every time, which causes inconvenience to the user.

Although some refrigerators can ventilate the vacuum storage room through the vacuum system, this will cause the user to wait for a long time, and the timeliness is poor

A longer vacuum time will also cause serious deformation of the refrigerator box, that is, the existing refrigerators with a vacuum pumping structure cannot complete vacuum preservation well, and the strength of the box is required to be very high. The realization requirements are high and the cost is high.

[0005] In addition, the inventors found that: due to the large volume and high cost of nitrogen-making equipment traditionally used for controlled atmosphere preservation, this technology is basically still limited to use in various large-scale professional storage warehouses (storage capacity is generally at least 30 tons or more) )

It can be said that what kind of appropriate gas adjustment technology and corresponding devices can be used to economically miniaturize and quiet the air conditioning system, making it suitable for families or individual users, is a problem that technicians in the field of air conditioning and fresh-keeping have been eager to solve but have never been able to solve. Technical problems that can be successfully solved

Images