Refrigeration system of refrigerator with quick-freezing function, refrigerator and quick-freezing control method

Abstract

The embodiment of the invention provides a refrigeration system of a refrigerator with a quick-freezing function, the refrigerator and a quick-freezing control method, and relates to the technical field of refrigeration equipment. The refrigeration system of the refrigerator with the quick-freezing function, the refrigerator and the quick-freezing control method are invented for solving the problem that a quick-freezing chamber of an existing refrigerator is poor in quick-freezing effect. A control system of the refrigerator with the quick-freezing function comprises a compressor, a condenser, a freezing capillary tube and a freezing evaporator which are in serial connection in sequence to form a loop; quick-freezing capillary tubes are in parallel connection with the two ends of the freezing capillary tube, and the length of the quick-freezing capillary tubes is larger than that of the freezing capillary tube; and an electromagnetic valve is further included, and a refrigerant is controlled by the electromagnetic valve to flow to the freezing capillary tube or quick-freezing capillary tubes. The refrigerating system of the refrigerator with the quick-freezing function, the refrigerator and the quick-freezing control method are used for low-temperature storage of food.

Description

Technical field [0001] The present invention relates to the technical field of refrigeration equipment, and in particular to a refrigeration system of a refrigerator with a quick-freezing function, a refrigerator and a quick-freezing control method. Background technique [0002] Food is more prone to spoilage in the hot season, so the refrigerator has become an effective means for people to preserve food in the hot season. Fresh vegetables are stored in cold storage, and meat and dumplings are stored in freezing. Cells will change during freezing and cooling. When the food temperature drops to -1°C (°C) to -5°C, the tissue fluid and other moisture in the cells will freeze into ice crystals. This temperature zone is called the "maximum ice crystal production zone". The speed of food freezing makes the size of the ice crystals produced vary. The slower the freezing speed, the larger the ice crystals produced, and the larger ice crystals will pierce the cell membrane. When the food...

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Problems solved by technology

[0005] However, when the refrigerator in the prior art realizes the quick-freezing function, although a special quick-freezing chamber fan 031 is provided to supply air to the quick-freezing chamber 03, since the evaporation temperature of the evaporator 011 is constant, the evaporator 011 is refrigerated per unit time. The cooling capacity provided is constant, but the cooling capacity produced by the evaporator 011 when the quick-freezing function is turned on is sent into the freezing chamber 04 and the quick-freezing chamber 03 at the same time. Therefore, when the refrigerator in the prior art realizes the quick-freezing function, the quick-freezing chamber The temperature drop rate in 03 is slow, and the quick-freezing effect is poor. In the prior art, two fans are used to supply air to the quick-freezing chamber 03 and the freezing chamber 04 respectively, resulting in an increase in the design cost of the refrigerator and a decrease in the effective volume of the refrigerator.

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