A control method and control device for a dual-system refrigerator, and the refrigerator

Abstract

Embodiments of the present invention provide a dual-system refrigerator control method device and refrigerator, which relate to the technical field of refrigerator refrigeration, and can improve the temperature control accuracy of the refrigerator, thereby reducing energy consumption and improving the temperature stability of the compartment. A control method for a dual-system refrigerator, comprising: detecting the current compartment temperature of each compartment of the refrigerator in a state where the compressor is stopped; Turn on the compressor to refrigerate the compartment corresponding to the first evaporator on the refrigeration circuit that is currently connected by default, wherein the pre-starting temperature of the compartment is lower than the booting temperature of the compartment.

Description

technical field [0001] The invention relates to the refrigeration field of refrigerators, in particular to a control method and a control device for a dual-system refrigerator and the refrigerator. Background technique [0002] At present, a dual-system refrigerator usually includes a compressor, and the compressor is connected to the refrigerating circuit and the freezing circuit through the condenser. Of course, evaporators are respectively installed on the refrigerating circuit and the refrigerating circuit. For air-cooled refrigerators, the evaporator needs a corresponding fan Provide cold energy to the corresponding compartment through the air duct. Among them, in the refrigerating and cooling mode, the compressor is switched to communicate with the refrigerating circuit, and the refrigerating room is refrigerated by the evaporator corresponding to the refrigerating room on the refrigerating circuit; To communicate with the freezing circuit, and to cool the freezing co...

AI Technical Summary

Problems solved by technology

[0003] However, affected by the external temperature or defrosting, there may be a situation where the freezer compartment and the refrigerated compartment have cooling demands at the same time, or the time interval between the freezer compartment and the refrigerated compartment starting to have freezing demands is relatively short, that is: the refrigerated compartment And the measured temperature of the freezer compartment meets the respective start-up temperature at the same time, or the measured temperature of the freezer compartment also meets the start-up temperature within a short time interval after the measured temperature of the refrigerated compartment meets the start-up temperature of the refrigerated compartment, and This very short time interval is not enough to cool the refrigerated compartment to meet the shutdown temperature of the refrigerated compartment, or the measured temperature of the refrigerated compartment meets the start-up temperature of the refrigerated compartment within a short period of time after the measured temperature of the refrigerated compartment meets the start-up temperature , and this very short time interval is not enough to cool the freezer compartment to meet the shutdown temperature of the freezer compartment; the design of the prior art has not considered this situation, if the refrigerator is continued to be controlled according to the prior art, then in When the first room is cooling, the measured temperature of the second room that has reached the start-up temperature will continue to rise due to failure to cool in time. When the second room is cooling, the compressor needs to be ramped up to generate enough cooling so that the second room will reach shutdown temperature quickly

Since the cooling time of the second chamber is short enough, the first chamber will heat up during the period but may not reach the starting temperature, thus temporarily causing the compressor to stop

Afterwards, the temperature of the two compartments rises at the same time to meet the cooling demand. In such a cycle, the frequency of the compressor will increase and decrease frequently, and one of the two compartments will not be able to cool in time when it reaches its starting temperature, thereby reducing the Temperature control accuracy increases energy consumption and is not conducive to room temperature stability

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