Gas suction pump assembly and cold storage and freezing device

Abstract

The invention relates to a gas suction pump assembly and a cold storage and freezing device. The gas suction pump assembly comprises a sealing box and a gas suction pump; two connecting pipes used for communicating the inner space of the sealing box with the outer space of the sealing box are embedded in the sealing box; the end portions, located on the inner side and the outer side of the sealing box, of each connecting pipe are each a pagoda-shaped connector facilitating sleeved arrangement of a soft pipe; the gas suction pump is arranged in the sealing box; a gas inlet pipe of the gas suction pump is connected to one connecting pipe through the corresponding soft pipe; and a gas outlet pipe of the gas suction pump is connected with the other connecting pipe through the corresponding soft pipe. The gas suction pump assembly is small in running noise, the disassembling and assembling process in the cold storage and freezing device is quite convenient, and the gas inlet pipe and the gas outlet pipe of the gas suction pump can be conveniently led out of the sealing box.

Description

technical field [0001] The invention relates to the technical field of refrigerator storage, in particular to an air suction pump assembly and a refrigerating and freezing device. Background technique [0002] With the improvement of the quality of life, consumers have higher and higher requirements for food preservation in refrigeration and freezing devices such as refrigerators and freezers. Modified atmosphere preservation technology generally refers to the technology of prolonging the life of food storage by adjusting the gas atmosphere (gas composition ratio or gas pressure) in the closed space where the storage is located. The basic principle is: in a certain closed space A gas atmosphere different from normal air components is obtained through various adjustment methods to inhibit the physiological and biochemical processes and microbial activities that cause the storage (usually food) to deteriorate. In particular, in this application, the discussed modified atmosph...

AI Technical Summary

Problems solved by technology

But until now, due to the large size and high cost of nitrogen-generating equipment traditionally used for controlled atmosphere preservation, this technology has basically been limited to use in various large-scale professional storages (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

[0005] In addition, the modified atmosphere fresh-keeping technology needs to use an air pump to extract oxygen, but the air pump is noisy

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