Refrigerating system for refrigerator and refrigerator

Abstract

The invention provides a refrigerating system for a refrigerator and the refrigerator. The refrigerating system for the refrigerator comprises a first evaporator, a first throttling device, a second throttling device and an electromagnetic reversing valve, wherein the first evaporator is arranged in the freezing chamber of the refrigerator; the first throttling device is connected to an inlet of the first evaporator to be used for controlling the amount of a refrigerant flowing into the first evaporator; the second throttling device is connected in parallel with the first throttling device, and the unit flowing amount of the second throttling device is less than that of the first throttling device; the electromagnetic reversing valve is connected to the first throttling device and the second throttling device to be used for preventing the first throttling device or the second throttling device from being switched in a refrigerating circuit. According to the technical scheme, rapid refrigeration for the freezing chamber of the refrigerator can be effectively realized, and the problem that food is frozen off due to an over-low temperature in the freezing chamber, which is caused by the continuous running of the compressor, can be solved.

Description

technical field [0001] The invention relates to the technical field of refrigerators, in particular to a refrigeration system for a refrigerator and a refrigerator. Background technique [0002] At present, for single-system freezers and single-system refrigerator-freezers (refrigeration circuits such as figure 1 Shown, comprise compressor 102, anti-dew pipe 104, condenser 106, capillary tube 108, refrigerating evaporator 110 and refrigerating evaporator 112), double-system refrigerating-freezing box (refrigerating circuit such as figure 2 As shown, including compressor 102, anti-dew pipe 104, condenser 106, refrigerating capillary 108a, freezing capillary 108b, refrigerating evaporator 110 and refrigerating evaporator 112), its quick-freezing function can only be achieved by controlling the continuous operation of compressor 102 Realized, its cooling effect is the same as normal cooling. [0003] The refrigeration system of the above-mentioned freezer uses a fixed capill...

AI Technical Summary

Problems solved by technology

[0003] The refrigeration system of the above-mentioned freezer uses a fixed capillary flow to maintain the refrigeration cycle. When the user needs the fast freezing function, the refrigeration state cannot be changed, and it can only be realized by the continuous operation of the compressor. The lowest temperature of the evaporator can only be If it reaches around -30℃, the freezing capacity of the refrigeration system cannot be further tapped; at the same time, if the compressor runs continuously, it will not only increase the power consumption, but also greatly reduce the temperature of the refrigerator, causing the food in the refrigerator to be damaged due to the temperature being too low

[0004] Therefore, how to effectively realize the rapid cooling of the freezer and avoid the continuous operation of the compressor to cause the temperature in the freezer to be too low has become a technical problem to be solved urgently.

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