Control method of draught fan of refrigerator compartment

Abstract

The invention provides a control method for a draught fan of a refrigerator compartment. The method comprises the following steps of: detecting a first temperature of a compartment, if the first temperature of the compartment is higher than a first predetermined temperature, refrigerating the compartment and detecting a door of the compartment whether the door is opened or not, if the door is closed, controlling the start of the draught fan; if the first temperature of the compartment is lower than a second predetermined temperature, stopping refrigeration and closing the draught fan, and detecting an evaporator of the compartment whether is defrosted or not, if the evaporator is defrosted, controlling the start of the draught fan and judging a setting temperature of the compartment whether the setting temperature is higher than a third predetermined temperature, if the setting temperature is higher than the third predetermined temperature, judging defrosting is ended or not, if the defrosting is ended, controlling the closing of the draught fan; if the setting temperature is lower than the third predetermined temperature, judging the defrosting time whether reaches scheduled time or not, if the defrosting time reaches the scheduled time, controlling the closing of the draught fan; wherein the second predetermined temperature is lower than the first predetermined temperature. In the embodiment disclosed by the method, when the evaporator is defrosted, the draught fan can be selectively started, therefore, humidity of the compartment can be effectively improved, a moisture preserving demand of the compartment can be met, and freshness retaining time of foods can be improved.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a method for controlling a fan in a refrigerator compartment. Background technique [0002] In the prior art, the start-up and shutdown of the fan in the refrigerating room of the refrigerator is usually only selectively started during the cooling process of the refrigerating room. When the evaporator in the refrigerating room is defrosting, it is usually not related to the fan, and the fan is always on. closed state, such as figure 1 As shown, firstly judge whether the refrigerator is cooling, if it is cooling, continue to judge whether the door of the refrigerator is open, if it is closed, then control the fan to start, and during the defrosting process of the evaporator of the refrigerator, the fan is always on In the closed state, the temperature in the refrigerating chamber rises, but the moisture in the refrigerating chamber decreases. As we all know, keep...

AI Technical Summary

Problems solved by technology

[0004] From the existing fan control methods, it is not difficult to find the following disadvantages, that is, when the evaporator in the refrigerating room is defrosting, the temperature of the evaporator needs to rise, which will cause the temperature in the refrigerating room to rise and the air to dry out. Food preservation and nutrition retention are very unfavorable. Not only will the food not be fresh, but also the nutrition will be lost, or food waste will be caused. Consumers need to buy food again, which will cause unnecessary economic waste for consumers.

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