Vacuum preservation device and refrigeration equipment

Abstract

The invention provides a vacuum fresh-keeping device and refrigeration equipment. The vacuum fresh-keeping device includes: a hard container shell, the hard container shell is provided with a shell opening; a deformable soft liner is installed in the hard container In the shell, the soft liner is provided with an inner liner opening opposite to the shell opening, and the edge of the liner opening is sealed with the hard container shell, and the inner side of the soft liner forms a An accommodating cavity, a sealed cavity is formed between the outer side of the soft liner and the hard container shell; the hard container cover can be opened and closed on the opening of the shell, and is used to seal the accommodating cavity; the vacuum pump , arranged outside the hard container shell and connected to the soft inner tank through the inner tank suction pipe. The vacuum fresh-keeping device provided by this solution is convenient for taking and placing food, has high sealing reliability of the container, and has good fresh-keeping effect.

Description

technical field [0001] The present invention relates to the field of food preservation, and more specifically, to a vacuum preservation device and a refrigeration device provided with the vacuum preservation device. Background technique [0002] Vacuum devices have a good food preservation effect. In recent years, vacuum devices have been more and more widely used in refrigerators and other refrigeration equipment products. Existing vacuum devices are divided into two types, one is a fixed volume vacuum device: such as figure 1 As shown, this type of vacuum device has a hard shell 1' to build a solid sealed space with a fixed volume. The gas in the sealed space is pumped out by means of an external vacuum pump 2', so that the gas pressure in the sealed space is reduced. , so as to achieve the purpose of food vacuum preservation. However, the disadvantage of this type of device is that the pumping vacuum of the fixed volume device is low, and the current general numerical l...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this type of device is that the vacuum degree of the fixed volume device is low, and the current general numerical level is between 0.65 and 0.85 atmospheres, which has limited contribution to food storage and preservation.

However, the disadvantages of this type of device are: the soft sealed bag is easy to be damaged, and the sealing of the opening of the soft vacuum bag is not easy to ensure, resulting in easy air leakage of the product and affecting the freshness preservation effect.

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