Air-cooled refrigerator and control method thereof

Abstract

The invention provides an air-cooled refrigerator. The air-cooling refrigerator comprises at least one refrigerating chamber, an evaporator, an air passageway, a fan, a defrosting sensor and a controller; the air passageway is used for communicating the at least one refrigerating chamber and the evaporator, and comprises an air return opening and an air outlet; the fan is arranged in the air passageway; the defrosting sensor is used for detecting the temperature of the evaporator; the controller is connected with the evaporator, the fan and the defrosting sensor respectively; and the controller controls the evaporator to stop refrigerating when the temperature of the at least one refrigerating chamber reaches a set temperature of the refrigerating chamber, and turns off the fan after the temperature of the evaporator, which is detected by the defrosting sensor, reaches a threshold value. Compared with the conventional air-cooled refrigerator, the air-cooled refrigerator of the embodiment has the advantages that: a natural defrosting mode instead of a defrosting heater is adopted, so the humidity index of the refrigerating chamber can be improved obviously.

Description

technical field [0001] The invention relates to the technical field of household electrical appliances, in particular to an air-cooled refrigerator and a control method thereof. Background technique [0002] Air-cooled refrigerators rely on forced convection to achieve refrigeration, and are mainly composed of cabinets, doors, control systems, air ducts, compressors, evaporators, condensers, fan motors (hereinafter referred to as fans), defrosting heaters and other components. The evaporator of this type of product is hidden in the air duct cover plate and the air duct foam. The lower part of the air duct cover plate and the air duct foam is arranged with multiple rows of return air outlets, and the upper part is arranged with multiple air outlets, which together form the air supply duct and the return air duct. At the same time, the fan is also installed in the air duct (usually on the upper part of the evaporator). When cooling, the compressor works, and the fan is energi...

AI Technical Summary

Problems solved by technology

[0005] 1. If you want to keep fruits and vegetables moisturized and kept fresh, it is generally required to keep the humidity at about 80%-90%. Fruits and vegetables are easy to dehydrate and dry, reducing storage time and edible value

[0006] 2. In the improved technical solution proposed by the above-mentioned Chinese patent, the fan in the refrigerator room is set as a two-way fan, which not only increases the control cost, but also affects the air volume and fan efficiency after the fan blade enters the reversed state, which is not conducive to the continuous improvement of the humidity in the box

[0007] 3. According to the scheme proposed by the above-mentioned Chinese patent, the fan needs to run continuously, and the refrigerator must work for many years, so the reliability of the fan is required to be high

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