Control method, control system and refrigerator

Abstract

The invention provides a control method, a control system and a refrigerator. The control method is used for controlling the rotation speed of a draught fan of the refrigerator, and includes the steps that according to a received draught fan start request, whether current environment temperature is larger than or equal to a first preset temperature value is judged; a rotation speed threshold range of current compressor rotation speed of the refrigerator is determined according to a judgment result, and draught fan work voltage of the refrigerator is adjusted according to the rotation speed threshold range so as to determine the rotation speed of the draught fan. By means of the technical scheme, the rotation speed of the draught fan can be reasonably adjusted through cooperation of the environment temperature, the compressor rotation speed and refrigeration requirements of chambers in the refrigerator, so that start and stop time of a compressor is optimized and overall energy consumption of a refrigerator system is reduced while the cooling speed is guaranteed.

Description

technical field [0001] The present invention relates to the technical field of household electrical appliances, in particular to a control method, a control system and a refrigerator. Background technique [0002] At present, the fan speed of refrigerators on the market is generally set to one gear or two gears, while in the related art, two gears of low speed and high speed are usually used to control the fan speed of refrigerators. Specifically, in conventional Low speed is used in the state, and high speed is used in the following situations: [0003] 1. The compressor starts at high speed for 10 seconds before starting; [0004] 2. When the ambient temperature is higher than 35°C, the speed is high; [0005] 3. High speed in special mode, such as quick cooling, quick freezing, etc. [0006] The following problems mainly exist in the control method for the fan speed of the refrigerator in the related art: [0007] 1. The fan speed is not well used to balance the tempe...

AI Technical Summary

Problems solved by technology

[0007] 1. The fan speed is not well used to balance the temperature change in the box;

[0008] 2. The required fan speed is not the same under different compressor speeds

Moreover, when the compressor rotates at a high speed, if a large fan speed is used to send air to the refrigerated compartment and the variable temperature compartment, a part of the cooling capacity of the compressor will be wasted;

[0009] 3. The actual request of each room is not combined, resulting in waste of cooling capacity distribution

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