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

A control method and drawer technology are applied in the field of air-conditioning drawers, fresh-keeping refrigerators, and air-conditioning control methods of refrigerators, which can solve problems such as drawer deformation, and achieve the effects of reducing internal and external pressure difference, easy to push and pull, and avoid deformation.

Active Publication Date: 2022-03-04
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-conditioning control method of refrigerator, air-conditioning drawer and fresh-keeping refrigerator
  • Air-conditioning control method of refrigerator, air-conditioning drawer and fresh-keeping refrigerator
  • Air-conditioning control method of refrigerator, air-conditioning drawer and fresh-keeping refrigerator

Examples

Experimental program
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Effect test

Embodiment 1

[0049] figure 1 Embodiment 1 of the modified atmosphere drawer of the present invention is shown, which includes a drawer body 10 , a nitrogen-oxygen separation membrane assembly 20 and a one-way valve assembly 30 . Wherein, a fresh-keeping space relatively isolated from air is formed in the drawer body 10, and a one-way valve assembly 30 is arranged 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 decreases. The one-way valve assembly 30 enters the fresh-keeping space. In this way, the pressure difference between the inside and outside 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 guaranteed, and related safety p...

Embodiment 2

[0062] figure 2 is a flow chart of a method for controlling the atmosphere of a refrigerator according to an embodiment of the present invention, such as figure 2 As shown, the method includes the following steps:

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

[0064] Before that, it is necessary to detect whether the drawer is completely closed, and if so, trigger the monitoring of 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. Thereby ensure that this scheme is carried out under the state of sealing drawer, to guarantee 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, according to the oxygen ...

Embodiment 3

[0084] image 3 is a detailed flow chart of a method for controlling the atmosphere 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 not, execute step S303, if yes, execute 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 the active atmosphere control needs to be turned on to reduce the oxygen, so control the vacuum pump to turn on, V=6L / min, until the oxygen concentration drops to the above-mentioned optim...

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Abstract

The invention discloses an air conditioning control method of a refrigerator, an air conditioning drawer and a fresh-keeping refrigerator. Wherein, the method includes: monitoring the oxygen concentration of the drawer and the pressure difference inside and outside the drawer when the drawer is closed; controlling the opening and closing of the vacuum pump in the nitrogen-oxygen separation membrane module and the air pipe The opening and closing of the air intake hole of the road channel. The invention realizes the linkage control of the nitrogen-oxygen separation membrane module and the air inlet switch of the air pipeline channel, which can not only adjust the gas concentration of the drawer to effectively keep the refrigerated food fresh, but also solve the problems of drawer deformation and negative pressure, so that The drawers are easy to move and secure.

Description

technical field [0001] The invention relates to the technical field of fresh-keeping refrigerators, in particular to a controlled atmosphere control method of a refrigerator, a controlled-atmosphere drawer and a fresh-keeping refrigerator. Background technique [0002] Controlled atmosphere fresh-keeping 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 controlled atmosphere storage is based on low temperature storage, adjusting the content of oxygen, carbon dioxide, and nitrogen in the air, that is, changing the storage environment. Composition, by reducing the content of oxygen, 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: fresh fruits and vegetables are still undergoing vigorous ...

Claims

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Application Information

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Patent Type & Authority Patents(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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