Refrigerator refrigeration system and refrigerator

Abstract

The invention discloses a refrigerator refrigeration system. A varying temperature room I and a varying temperature room II are arranged in a refrigerator, an outlet of a compressor is connected withan inlet of a condenser, an outlet of the compressor is connected with an inlet of a dry filter, and an inlet of a changeover valve is connected with an outlet of the dry filter; the two outlets are separately connected with inlets of a first thin glass tube and a second thin glass tube, an outlet of the first thin glass tube is connected with an inlet of an evaporator, and an outlet of the secondfirst thin glass tube are separately connected with inlets of a second stop valve and a second evaporator through a three-way pipe; and an inlet of a first stop valve are separately connected with outlets of the first evaporator and the second evaporator through a three-way pipe, an inlet of the compressor is separately connected with outlets of the first stop valve and the second stop valve through a three-way pipe, and a controller is used for controlling the opening and closing of the changeover valve, the first stop valve and the second stop valve. The refrigerator refrigeration system can solve the distribution problem of refrigerants during refrigeration in different rooms, so that each room of the refrigerator can realize mutual conversion of refrigerating and freezing functions.

Description

technical field [0001] The invention relates to the technical field of refrigerators, in particular to a refrigerator refrigeration system and a refrigerator. Background technique [0002] In the existing refrigerators, the variable temperature zone is only realized as an incidental function of the refrigerator, and the volume is limited. With the improvement of people's living standards, there are more and more types of items that need to be stored, and the suitable storage temperature for different items The zones are also different, and the small-volume temperature-variable zone is difficult to meet the individual needs of users. If technological innovation can be used to realize the temperature-changing function of each compartment of the refrigerator for mutual conversion between refrigerated and frozen, it will further expand the storage of items in the refrigerator. breadth, to meet the needs of users. [0003] At present, in order to realize the mutual conversion be...

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Problems solved by technology

[0002] In the existing refrigerators, the variable temperature zone is only realized as an incidental function of the refrigerator, and the volume is limited. With the improvement of people's living standards, there are more and more types of items that need to be stored, and the suitable storage temperature for different items The zones are also different, and the small-volume temperature-variable zone is difficult to meet the individual needs of users. If technological innovation can be used to realize the temperature-changing function of each compartment of the refrigerator for mutual conversion between refrigerated and frozen, it will further expand the storage of items in the refrigerator. breadth, to meet the needs of users

[0003] At present, in order to realize the mutual conversion between refrigeration and freezing in the two rooms, there are the following two implementation methods for the single circulation system: 1. Add multiple dampers in the air duct, and at the same time add compensation heating wires in the room where the evaporator is located, so as to realize However, due to the addition of multiple dampers in this method, there is a risk in the reliability of defrosting. At the same time, it is not conducive to energy saving due to the need to compensate for heating with compensation heating wires, and the temperature fluctuation is large, which is not conducive to freshness preservation; 2 , Two compressors are used to form two refrigeration systems respectively, but this method needs to add a refrigeration system, and the cost is relatively high

[0004] If a common refrigerator-freezer adopts a double-circulation system to realize the mutual conversion between refrigeration and freezing between two chambers, there are still many difficulties in practical application.

For example, if a series-parallel double-circulation system is used to realize the mutual conversion between the refrigeration and freezing temperature zones of the two rooms, the original freezer room cannot be closed separately, so it is difficult to use the original freezer room as a refrigerator; It can be closed separately, but when one of the two rooms is used as a high-temperature room and the other is used as a low-temperature room, the two rooms need to switch cooling. The evaporation temperature of the room is lower, and most of the refrigerant flows back through the return air and is stored in the evaporator with a lower evaporation temperature. Compartment does not fulfill its purpose as two freezers

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