Sucking pump assembly and refrigerating and freezing device

Abstract

The invention relates to a sucking pump assembly and a refrigerating and freezing device. The sucking pump assembly comprises a mounting bottom plate, a sealed box and a sucking pump, wherein a blocking part extending upwards is arranged on the rear portion of the upper surface of the mounting bottom plate; the front surface of the blocking part is sunken backwards to form a positioning sunken part; the sealed box is provided with an air inlet connecting pipe and an air outlet connecting pipe which communicate the inside and the outside of the sealed box; the air inlet connecting pipe, the air outlet connecting pipe and the sealed box are integrally molded and formed; a positioning protrusion part protruding backwards is arranged on the rear portion of the sealed box; the sealed box is located on the upper side of the mounting bottom plate; the positioning protrusion part is clamped into the positioning sunken part; the front portion of the sealed box is locked to the mounting bottom plate; the sucking pump is arranged in the sealed box in the mode that the axis of the sucking pump extends in the horizontal direction; an air inlet of the sucking pump is connected to the air inlet connecting pipe through a hose; and an air outlet of the sucking pump is connected to the air outlet connecting pipe through a hose. The sucking pump assembly is low in operation noise, the dismounting process of the sucking pump assembly in the refrigerating and freezing device is quite convenient, and the occupied height space is small.

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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