Refrigeration system for three-door multi-temperature-zone refrigerator, and three-door multi-temperature-zone refrigerator

Abstract

The invention relates to a refrigeration system, in particular to a refrigeration system for a three-door multi-temperature-zone refrigerator. The invention also relates to a refrigerator, in particular to a three-door multi-temperature-zone refrigerator with the refrigeration system. The variation range of temperature of a variable temperature zone is increased, and the defrosting problem and large temperature difference problem are effectively solved. The three-door multi-temperature-zone refrigerator is provided, and the refrigeration effect of the refrigerator is optimized. The three-door multi-temperature-zone refrigerator comprises a fresh-food storage compartment, a variable temperature compartment, a freezer and a refrigeration system, wherein the refrigeration system comprises a refrigeration loop, a variable temperature refrigeration loop and a freezing refrigeration loop, and the three refrigeration loops are respectively used for refrigeration of the fresh-food storage compartment, the variable temperature compartment and the freezer of the refrigerator; and the variable temperature refrigeration loop is at least provided with two branches, one is a refrigeration variable temperature branch, and the other is a freezing variable temperature branch; and the variable temperature branch loops comprise evaporators. The refrigerator provided by the invention has the beneficial effects that the variable temperature compartment refrigeration loop is provided with at least two variable temperature branches, each branch can be controlled for refrigeration according to the actual needs, the defrosting problem and the large temperature difference problem can be effectively solved, and the refrigeration effect of the refrigerator is optimized.

Description

[0001] technical field [0002] The present invention relates to a refrigeration system, specifically a refrigeration system for a three-door multi-temperature zone refrigerator; and also relates to a refrigerator, specifically a three-door multi-temperature zone refrigerator equipped with the refrigeration system. Background technique [0003] A refrigerator is a device used for cooling and for preserving food. The quality of a refrigerator depends mainly on the quality of its refrigeration system. With the continuous development of people's quality of life and technology, refrigerators have now developed from simple freezing and refrigeration functions to multi-temperature zone structures. For example: three-door multi-temperature zone refrigerator. [0004] At present, the refrigeration system of the three-door multi-temperature zone refrigerator is mainly a three-way capillary refrigeration circuit, that is, a double solenoid valve is used to control the opening and cl...

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Problems solved by technology

[0004] At present, the refrigeration system of the three-door multi-temperature zone refrigerator is mainly a three-way capillary refrigeration circuit, that is, a double solenoid valve is used to control the opening and closing of the three-way capillary (such as figure 1 As shown), each room of the refrigerator is refrigerated. This refrigeration system keeps the temperature range of the variable temperature room at -7~+10°C. The temperature range of the variable temperature area is relatively small, and the cooling effect is affected by the large temperature difference.

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