Natural-defrosting refrigerator with temperature changing function and defrosting control method

Abstract

The invention discloses a natural-defrosting refrigerator with a temperature changing function and a defrosting control method, and belongs to the technical field of refrigerators. The natural-defrosting refrigerator comprises a cooling system used for controlling the temperature of a refrigerating compartment and a temperature changing system used for controlling the temperature of the temperature changing compartment, wherein the refrigerating compartment and the temperature changing compartment are subjected to air supply refrigeration through an evaporator, and the two compartments share one set of refrigeration device for refrigeration, and the temperature requirements of each compartment of the refrigerator are realized by judging the temperature of the evaporator, the temperature ofthe refrigerating compartment and the temperature of the temperature changing compartment in real time and controlling opening and closing of the a refrigerating ventilation door, a temperature changing ventilation door and a compressor on a refrigerating system according to control logic preset by the system. According to the natural-defrosting refrigerator, a defrosting heater on the evaporatoris discarded, the production cost of the refrigerator is reduced, and the evaporator is naturally frosted through the operational characteristic of the refrigerating compartment above 0 DEG C, the normal operation of the refrigerator is ensured, at the same time the energy consumption for the operation of the refrigerator is reduced, and air heat and cool energy in the refrigerator are fully used.

Description

technical field [0001] The invention belongs to the technical field of refrigerators, and in particular relates to a refrigerator with a variable temperature function capable of defrosting naturally and a defrosting control method for a refrigerator with a variable temperature function suitable for the refrigerator. Background technique [0002] At present, as there are more and more types of items stored in refrigerators, consumers have more and more diverse temperature requirements for each compartment of the refrigerator. Traditional refrigerators only set the temperature range of the refrigerated compartment between 0 and 10°C and the temperature of the freezer compartment ≤ -18°C is no longer able to meet the needs of consumers, so many high-end refrigerators now have variable temperature compartments, that is, a wide range of temperature adjustment, which can cover refrigeration to freezing and other intermediate compartments according to different products. The refrig...

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Problems solved by technology

[0002] At present, as there are more and more types of items stored in refrigerators, consumers have more and more diverse temperature requirements for each compartment of the refrigerator. Traditional refrigerators only set the temperature range of the refrigerated compartment between 0 and 10°C and the temperature of the freezer compartment ≤ -18°C can no longer meet the needs of consumers, so now many high-end refrigerators are equipped with variable temperature compartments, that is, the temperature adjustment range is wide, and according to different products, it can cover refrigeration to freezing and the compartments in between.

The refrigerated room works above 0°C, while the variable temperature room may work below 0°C. The requirements for defrosting of the evaporator are different and will affect each other. Product cost, or set up an evaporator with a defrost heater, which will increase the product cost and increase the energy consumption of the refrigerator

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