Refrigerator and its control method

Abstract

Provided is a refrigerator (10) and a method for controlling the same. The refrigerator (10) includes a compressor (111, 115) compressing a refrigerant, a condenser (120) condensing the refrigerant compressed in the compressor (111, 115), a refrigerant tube (100) guiding the refrigerant condensed in the condenser (120), a flow adjustment part (130) coupled to the refrigerant tube (100) to divide the refrigerant into a plurality of refrigerant passages (101, 103, 105), a plurality of expansion devices (141, 143, 145) respectivley disposed in the plurality of refrigerant passages (101, 103, 105) to decompress the refrigerant condensed in the condenser (120), a plurality of evaporators (150, 160) evaporating the refrigerant decompressed in the plurality of expansion devices (141, 143, 145), and a supercooling heat exchanger (500) disposed at an outlet-side of the condenser (120) to supercool the refrigerant. The refrigerant supercooled in the supercooling heat exchanger (500) is introduced into the flow adjustment part (130).

Description

technical field [0001] The invention relates to a refrigerator and a control method thereof. Background technique [0002] In general, a refrigerator includes a plurality of storage chambers for storing food in order to freeze or refrigerate food, and one side of the storage chambers is formed to be open in order to store and take out the food. The plurality of storage compartments include a freezing compartment for freezing food and a refrigerating compartment for refrigerating food. [0003] In a refrigerator, the refrigeration system that circulates the refrigerant is driven. The devices constituting the above refrigeration system include a compressor, a condenser, an expansion device, and an evaporator. The evaporator may include a first evaporator disposed on one side of the refrigerating chamber, and a second evaporator disposed on one side of the freezing chamber. [0004] The cold air stored in the refrigerator is cooled while passing through the first evaporator,...

AI Technical Summary

Problems solved by technology

[0006] In this case, the cooled storage room can maintain an appropriate temperature range, but the temperature of the uncooled storage room will rise, causing it to deviate from the normal range

Also, in the state where one storage room needs to be cooled, if it is detected that the temperature of the other storage room is out of the normal range, the other storage room cannot be cooled immediately.

[0007] As a result, in the structure that needs to cool the storage room independently, there will be the following problems: the cold air cannot be supplied to the appropriate storage room at the appropriate time, resulting in insufficient refrigerant during operation, reducing the operating efficiency of the refrigerator

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