Air-cooled refrigerator and operational control method thereof

Abstract

The invention discloses an air-cooled refrigerator and an operational control method thereof. The method comprises the steps that the refrigerator is controlled to enter a synchronous refrigeration state, wherein the synchronous refrigeration state is set to include the condition that a refrigeration system is started, a draught fan is started, a refrigerating air door is started, and a freezing air door is started; the temperature Tf of a freezing chamber and the temperature Tr of a refrigerating chamber are collected in real time, and whether the temperature Tf corresponds to a freezing fourth preset temperature interval or not and whether the temperature Tr corresponds to a refrigerating fourth preset temperature interval or not are sequentially judged; and when the temperature Tf corresponds to the freezing fourth preset temperature interval and the temperature Tr does not correspond to the refrigerating fourth preset temperature interval, the refrigerator is controlled to enter a pre-cooling state, wherein the pre-cooling state is set to include the condition that the refrigeration system is shut down, the draught fan is started, the refrigerating air door is started, and the freezing air door is shut down. According to the air-cooled refrigerator and the operational control method thereof, residual cool of an evaporator is fully utilized for carrying out temperature control of the refrigerating chamber, the energy utilization rate is increased, and meanwhile the defrosting and humidity increasing effects are achieved.

Description

technical field [0001] The invention relates to an air-cooled refrigerator and an operation control method thereof, belonging to the technical field of household appliances. Background technique [0002] At present, with the improvement of the quality of life, people have more and more stringent requirements on the freshness preservation ability of refrigerators. As the two storage rooms that are commonly used in refrigerators, the stability and accuracy of their temperature have greatly affected The storage quality of food in the refrigerator. [0003] At present, air-cooled refrigerators usually have the following problems: 1) The operation mode of the refrigerator is single, the energy-saving effect is poor, and the temperature control accuracy is low; 2) When cooling the refrigerator, the high-temperature return air from the refrigerator enters the freezer, 3) When a large number of high-temperature items are placed in the refrigerator or freezer, the load of the refrig...

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Problems solved by technology

[0003] At present, air-cooled refrigerators usually have the following problems: 1) The operation mode of the refrigerator is single, the energy-saving effect is poor, and the temperature control accuracy is low; 2) When cooling the refrigerator, the high-temperature return air from the refrigerator enters the freezer, 3) When a large number of high-temperature items are placed in the refrigerator or freezer, the load of the refrigerator or freezer is high (that is, the temperature is much higher than the starting point), and the refrigerator The control process is the same during normal start-up and high load, not only cannot quickly lower the temperature under high load, causing the food to be suddenly exposed to high temperature, causing food to deteriorate and rot, but also high energy consumption; 4) The moisture loss in the refrigerator room causes air-drying problems; 5 ) Due to the frequent opening of the door of the refrigerator room, the door body has not been closed tightly. At this time, the long-term operation of the refrigeration system may easily lead to damage

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