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A method for controlling the gas concentration of a refrigerator and a fresh-keeping refrigerator

A technology of gas concentration and concentration, applied in household refrigerators, cooling fluid circulation devices, household refrigeration devices, etc., can solve problems such as damage, and achieve the effect of reducing oxygen concentration, inhibiting aerobic respiration, and suitable carbon dioxide concentration

Active Publication Date: 2022-05-10
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a method for controlling the gas concentration of a refrigerator and a fresh-keeping refrigerator to solve the problem that the gas concentration adjustment scheme of the refrigerator drawer in the prior art cannot avoid the damage caused by anaerobic respiration of fruits and vegetables

Method used

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  • A method for controlling the gas concentration of a refrigerator and a fresh-keeping refrigerator
  • A method for controlling the gas concentration of a refrigerator and a fresh-keeping refrigerator
  • A method for controlling the gas concentration of a refrigerator and a fresh-keeping refrigerator

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Embodiment 1

[0063] The invention proposes a gas concentration control scheme, which can realize the linkage control of the air-conditioning membrane and the oxygen reduction equipment (nitrogen-oxygen separation membrane module) according to the carbon dioxide concentration in the drawer, so as to ensure that the carbon dioxide concentration in the drawer is in a relatively suitable range , to achieve the purpose of inhibiting the aerobic respiration of fruits and vegetables, avoiding the damage caused by anaerobic respiration of fruits and vegetables, and avoiding condensation. The structure of the fresh-keeping refrigerator on which the present invention is based is firstly introduced below.

[0064] Compared with the traditional air-conditioning membrane fresh-keeping drawer, the present invention sets an oxygen-reducing device (nitrogen-oxygen separation membrane module) on the structure of the fresh-keeping refrigerator to realize active air conditioning, and sets an air-conditioning ...

Embodiment 2

[0083] Based on the fresh-keeping refrigerator introduced in the above embodiments, this embodiment provides a gas concentration control solution for the refrigerator. Figure 4 It is a flow chart of a method for regulating the gas concentration of a refrigerator according to an embodiment of the present invention, such as Figure 4 As shown, the method includes the following steps:

[0084] Step S401, when the drawer is closed, monitor the carbon dioxide concentration in the drawer;

[0085] Step S402, according to the range where the carbon dioxide concentration is located, execute the corresponding adjustment strategy to adjust the gear position of the vacuum pump in the nitrogen-oxygen separation membrane module and the gear position of the air-conditioning membrane in the adjustable air-conditioning membrane module; wherein, the vacuum pump and the air-conditioning membrane The initial gears are all intermediate gears. Different gears of the vacuum pump correspond to di...

Embodiment 3

[0111] The technical solutions of the present invention will be described in detail below through specific embodiments and accompanying drawings. Figure 5 It is a detailed flow chart of the gas concentration control method of the refrigerator according to the embodiment of the present invention, such as Figure 5 As shown, the process includes the following steps:

[0112] In step S501, the user turns on the air conditioning function according to the requirement.

[0113] Step S502, identifying whether the drawer is closed tightly;

[0114] Step S503, if the drawer is not closed tightly, prompt the user to close the drawer tightly.

[0115] Step S504, if the drawer is tightly closed, turn on the vacuum pump to the L2 position, and turn on the atmosphere-modified membrane to the S2 position.

[0116] In this embodiment, the vacuum pump is set in two gears according to the flow rate, which are L1 gear and L2 gear respectively, and the flow rate L12 , S2=450cm 2 , S3=650cm ...

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Abstract

The invention discloses a gas concentration control method of a refrigerator and a fresh-keeping refrigerator. Wherein, the method includes: monitoring the carbon dioxide concentration in the drawer when the drawer is closed; according to the range of the carbon dioxide concentration, executing a corresponding adjustment strategy to adjust the gear position and the adjustable gas pressure of the vacuum pump in the nitrogen-oxygen separation membrane module. The gears of the air-adjusted membrane in the air-adjusted membrane assembly; wherein, the initial gears of the vacuum pump and the air-adjusted membrane are both intermediate gears. According to the carbon dioxide concentration in the drawer, the present invention can realize the linkage control of the air-conditioning membrane and the nitrogen-oxygen separation membrane module, and can judge whether it is necessary to adjust the rotation speed of the vacuum pump and the effective use area of ​​the air-conditioning membrane according to the carbon dioxide concentration in the drawer. While reducing the oxygen concentration in the drawer, ensure that the carbon dioxide concentration in the drawer is appropriate. It can effectively inhibit the aerobic respiration of fruits and vegetables and avoid the damage caused by anaerobic respiration of fruits and vegetables.

Description

technical field [0001] The invention relates to the technical field of refrigerators, in particular to a method for regulating the gas concentration of a refrigerator and a fresh-keeping 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, active air conditioning usually uses air-conditioning equipment to adjust the oxygen and carbon dioxide concentrations in the fruit and vegetable drawers, by reducing the oxygen concentration in the storage environment and increasing the carbon dioxide concentration, thereby inhibiting the aerobic respirat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25D11/02F25D17/06F25D29/00
CPCF25D11/02F25D17/042F25D17/062F25D29/005F25D2317/04
Inventor 焦雯姝陈佳弘郭琨李信良
Owner GREE ELECTRIC APPLIANCES INC
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