Air regulation control method of refrigerator, air regulation drawer and fresh-keeping refrigerator

A drawer and air-conditioning technology, which is applied in household refrigerators, household refrigeration devices, coolers, etc., can solve problems such as drawer deformation, achieve the effects of reducing internal and external pressure differences, easy to push and pull, and avoid deformation

Active Publication Date: 2021-07-16
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a controlled atmosphere control method for a refrigerator, a controlled atmosphere drawer, and a fresh-keeping refrigerator, so as to solve the problem in the prior art that the drawer is easily deformed due to changes in air pressure during the air conditioning process of the refrigerator

Method used

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  • Air regulation control method of refrigerator, air regulation drawer and fresh-keeping refrigerator
  • Air regulation control method of refrigerator, air regulation drawer and fresh-keeping refrigerator
  • Air regulation control method of refrigerator, air regulation drawer and fresh-keeping refrigerator

Examples

Experimental program
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Effect test

Embodiment 1

[0049] figure 1 Embodiment 1 of the air-conditioning drawer of the present invention is shown, and the air-conditioning drawer includes a drawer body 10 , a nitrogen-oxygen separation membrane assembly 20 and a one-way valve assembly 30 . The drawer body 10 is formed with a fresh-keeping space relatively isolated from air, the one-way valve assembly 30 is disposed on the drawer body 10, and the check direction of the one-way valve assembly 30 is from the fresh-keeping space to the external space. When in use, the nitrogen-oxygen separation membrane module 20 separates oxygen from the fresh-keeping space, so that the air pressure in the fresh-keeping space is reduced. The one-way valve assembly 30 enters the fresh-keeping space. In this way, the internal and external pressure difference of the drawer body 10 can be reduced, the deformation of the drawer body 10 under the pressure difference can be avoided, the basic shape of the drawer body 10 can be ensured, and related safet...

Embodiment 2

[0062] figure 2 is a flow chart of the air conditioning control method of the refrigerator according to the embodiment of the present invention, such as figure 2 As shown, the method includes the following steps:

[0063] Step S201 , in the closed state of the drawer, monitor the oxygen concentration of the drawer and the pressure difference between the inside and outside of the drawer.

[0064] Before this, it is necessary to detect whether the drawer is completely closed, and if so, trigger to monitor the oxygen concentration of the drawer and the pressure difference between the inside and outside of the drawer; otherwise, prompt the user to close the drawer. Therefore, it is ensured that the scheme is executed in the state of the sealed drawer, so as to ensure the monitoring effect. The above-mentioned internal and external pressure difference refers to the internal pressure value of the drawer - the external pressure value of the drawer.

[0065] Step S202, controllin...

Embodiment 3

[0084] image 3 It is a detailed flow chart of a method for air conditioning control of a refrigerator according to an embodiment of the present invention, such as image 3 As shown, the method includes the following steps:

[0085] In step S301, the user turns on the air conditioning function.

[0086] Step S302, check whether the drawer is airtight, if otherwise, go to step S303, and if so, go to step S304.

[0087] Step S303, reminding the user to close the drawer.

[0088] Step S304 , monitoring the oxygen concentration in the drawer, assuming that the optimal oxygen concentration range in the drawer to ensure the freshness of vegetables and fruits is 1%-5%.

[0089] Step S305, the oxygen concentration CO2>5%, indicating that the oxygen concentration in the drawer is high at this time, and it is necessary to turn on the active gas adjustment to reduce oxygen, so control the vacuum pump to turn on, V=6L / min, until the oxygen concentration falls to the above-mentioned opt...

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Abstract

The invention discloses an air regulation control method of a refrigerator, an air regulation drawer and the fresh-keeping refrigerator. The method comprises the following steps that when the drawer is in a closed state, the oxygen concentration of the drawer and the internal and external pressure difference of the drawer are monitored ; and according to the oxygen concentration and the internal and external pressure difference, opening and closing of a vacuum pump in a nitrogen-oxygen separation membrane assembly and opening and closing of an air inlet hole of an air pipeline channel are controlled. According to the air regulation control method of the refrigerator, the air regulation drawer and the fresh-keeping refrigerator, linkage control over the nitrogen-oxygen separation membrane assembly and opening and closing of the air inlet of the air pipeline channel is achieved, the gas concentration of the drawer can be adjusted to effectively preserve refrigerated food, the problems of drawer deformation and negative pressure generation can be solved, and the drawer is easy to push and pull and safe.

Description

technical field [0001] The invention relates to the technical field of refrigerator preservation, in particular to an air-conditioning control method of a refrigerator, an air-conditioning drawer and a fresh-keeping refrigerator. Background technique [0002] Modified atmosphere storage refers to the refrigeration method in a specific gas environment. The oxygen content in the normal atmosphere is 20.9%, the carbon dioxide content is 0.03%, and the nitrogen content is 78%, while the controlled atmosphere storage is to adjust the content of oxygen, carbon dioxide and nitrogen in the air on the basis of low temperature storage, that is, the gas that changes the storage environment By reducing the oxygen content, increasing the concentration of carbon dioxide or nitrogen, and according to the different requirements of the storage, the gas composition is kept in the desired state. The principle is: after fresh fruits and vegetables are picked, they still carry out vigorous resp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D11/00F25D17/06F25D25/02F25D29/00
CPCF25D11/00F25D17/047F25D17/062F25D25/025F25D29/005F25D2317/04
Inventor 何丽娜刘德茂陈佳弘刘畅
Owner GREE ELECTRIC APPLIANCES INC
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