Single-system air-cooling refrigerator defrosting recovery period control method and system and refrigerator

Abstract

The invention relates to a single-system air-cooling refrigerator defrosting recovery period control method and system and a refrigerator. The method comprises the following steps: starting a compressor and closing a refrigeration air door a first preset time t1 later after defrosting stops; opening the refrigeration air door after a second preset time t2 of refrigeration; when the temperature of a refrigeration chamber is lowered to a preset refrigeration temperature, closing the refrigeration air door; and when the temperature of a freezing chamber is lowered to a preset freezing temperature, stopping defrosting recovery control. According to the invention, the purpose of time-sharing control of refrigeration and freezing is achieved by controlling the opening / closing state of the refrigeration air door after defrosting; and after time control is over, both the refrigeration chamber and the freezing chamber are finally enabled to reach the preset temperatures by controlling the opening / closing state of the refrigeration air door. Through the control method provided by the invention, the defrosting recovery period is effectively shortened, power consumption in the defrosting recovery period is reduced, and refrigeration and freezing are recovered as soon as possible to a normal stable operation state.

Description

technical field [0001] The invention relates to the technical field of refrigerators, in particular to a method and system for controlling the defrosting recovery period of a single-system air-cooled refrigerator, and a refrigerator. Background technique [0002] figure 1 Shown is the system diagram of the current single-system air-cooled refrigerator. There is only one evaporator and a supporting fan, and it provides cooling for the two compartments of the refrigerator and the freezer at the same time. The cooling of the refrigerator room is determined by the opening and closing of the refrigerator door. accomplish. [0003] During the defrosting process of the evaporator, since the heating pipe is as high as about 200°C, a large amount of hot air will flow into the refrigerator compartment through the air duct during this period, which will cause the room temperature to rise significantly; [0004] After defrosting, with the inflow of a large amount of hot air, the tempe...

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Problems solved by technology

[0004] After defrosting, with the inflow of a large amount of hot air, the temperature of the two compartments will obviously deviate from the normal temperature level (the temperature of the refrigerator compartment is generally in the range of 0-10°C during the stable operation of the refrigerator, while the temperature of the freezer compartment is lower than -18°C interval, the heat load difference between the two is large), the cooling during the recovery period after defrosting is obviously out of sync, the recovery period takes a long time, and the energy consumption increases

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