Air supply control method and device of air-cooled refrigerator

Abstract

The invention provides an air supply control method and device of an air-cooled refrigerator. The air supply control method of the air-cooled refrigerator comprises the steps that the actual temperature in a cold storage chamber and actual temperature in a freezing chamber are detected through a first temperature sensor and a second temperature sensor which are arranged in the cold storage chamber and the freezing chamber correspondingly; whether the actual temperature in the cold storage chamber is larger than or equal to the preset turn-on temperature is judged, and if yes, an air door is controlled to be opened at a preset angle, and a fan is controlled to operate at a first rotating speed; whether the actual temperature in the cold storage chamber is smaller than or equal to the first turn-off temperature is judged, the actual temperature in the freezing chamber is larger than the second shut-down temperature, and if yes, the air door is controlled to be closed and the fan is controlled to operate at a second rotating speed. According to the scheme, by shortening the negative pressure time of the cold storage chamber and reducing the negative pressure degree of the cold storage chamber, the condensation phenomenon in the cold storage chamber can be effectively relieved, and the problem that condensation affects the service life and the refrigeration effect of the refrigerator is avoided.

Description

technical field [0001] The invention relates to the field of home appliance control, in particular to an air supply control method and device for an air-cooled refrigerator. Background technique [0002] With the development of society and the improvement of people's living standards, and people's pace of life is getting faster and faster, people often buy a large number of items to be placed in refrigerators, and refrigerators have gradually become one of the requisite household appliances in people's lives. Science and technology are constantly developing, and so are refrigerators. From the previous old-fashioned refrigerators, it has gradually developed into direct-cooling refrigerators and the latest air-cooling refrigerators. [0003] Air-cooled refrigerators are also called frost-free refrigerators, but air-cooled refrigerators do not produce frost, but let the frost basically condense on the evaporator, and will not condense on the inner wall of the refrigerator. Th...

AI Technical Summary

Problems solved by technology

[0005] However, for a two-room air-cooled refrigerator with air supply by a single fan, that is, the refrigerated compartment and the freezer compartment of the air-cooled refrigerator are supplied with air by a fan. The damper between the compartment and the freezer compartment is closed, and the fan no longer supplies air to the refrigerated compartment, but the operation of the fan makes the air return port in the refrigerated compartment still return air, resulting in a negative pressure in the refrigerated compartment and making the external high-temperature air It is easy to enter the refrigerated room and form condensation when it is cold. Condensation has a serious impact on the life of the refrigerator. It can cause large areas of paint film to fall off, accelerate the corrosion of the box, and shorten the service life of the refrigerator.

What's more serious, frost may form there and make the door of the refrigerator not close tightly, so that the refrigerator consumes a lot of electric energy in vain, and seriously affects the cooling effect of the refrigerator.

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