Fresh-keeping device and refrigerator

Abstract

The invention discloses a fresh-keeping device and a refrigerator. The fresh-keeping device comprises a fresh-keeping box, a gas detection device for monitoring the gas concentration in the fresh-keeping box, a regulation device for regulating the gas concentration in the fresh-keeping box by changing the area of a gas regulation film and a controller for controlling the regulation device to adjust to different preset gears to reduce aerobic respiration of fruits and vegetables according to gas concentration information. The regulation device can be controlled to adjust to different preset gears according to the current gas concentration information detected by the gas detection device to reduce the aerobic respiration of the fruits and vegetables, the gas atmosphere in a storage space isadjusted by the gas produced by respiration of the fruits and vegetables, the gas regulation efficiency higher than traditional passive gas regulation is realized, and meanwhile, the reduced user experience due to the facts that part of fruits and vegetables produce a large quantity of condensed dew because of strong respiration and transpiration and moisture cannot be discharged out of the fresh-keeping box is avoided.

Description

technical field [0001] The invention relates to the field of household appliances, in particular to a fresh-keeping device and a refrigerator. Background technique [0002] With the continuous improvement of living standards and the improvement of diet structure, people have higher and higher requirements for the freshness of fruits and vegetables and the persistence of food preservation. reservation. [0003] At present, the modified atmosphere preservation technology can generally meet people's needs, and the technology is mainly divided into active modified atmosphere and passive modified atmosphere. Among them, passive air conditioning is usually applied to the fresh-keeping space of the refrigerator, and the respiration of fruits and vegetables can be used to reduce the oxygen concentration in the storage environment and increase the carbon dioxide concentration, thereby inhibiting the aerobic respiration of fruits and vegetables and the consumption of their own nutrie...

AI Technical Summary

Problems solved by technology

[0004] However, the existing modified atmosphere refrigerators usually use a modified atmosphere film with a fixed film area, and the gas permeability and moisture permeability are fixed. It is impossible to form the most suitable gas environment for fruits and vegetables of different types, sizes and breathing intensities. Strong respiration causes excessive humidity in the fresh-keeping box, or weak respiration causes low humidity in the box, resulting in high weight loss rate of fruits and vegetables

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