A refrigerator and its control method

Abstract

The present invention provides a refrigerator, which includes: a refrigerating room; a freezing room; a first temperature-changing room installed independently of the refrigerating room and the freezing room; at least one second temperature-changing room accommodated in the refrigerating room; The air supply duct of the refrigerating room; the refrigerating fan; the damper of the refrigerating room; the damper of the second variable room; the control unit, used to receive the temperature information fed back by the temperature sensor of the refrigerating room and / or the temperature sensor of the second variable room and selectively control the The damper of the refrigerating room and / or the damper of the second variable temperature room are opened and closed; the refrigerating unit is used to receive the temperature information fed back by the temperature sensor of the refrigerating room and selectively control the refrigerating evaporator to switch on or off the refrigerant circuit. Compared with the prior art, the refrigerator in the present invention can realize the temperature zone of the temperature-changing room located in the refrigerating room to reach -7°C or even lower temperature while ensuring that the temperature of the refrigerating room will not be too low, and at the same time, the refrigerator has energy-saving and noise-reducing functions. , The effect of prolonging the service life.

Description

technical field [0001] The invention relates to a refrigeration device, in particular to a refrigerator with three systems and five temperature zones and a control method thereof. Background technique [0002] With the continuous improvement of people's living standards, the quality requirements for household appliances are also getting higher and higher. In order to realize multiple functions such as refrigeration, freshness preservation, freezing temperature and freezing that span the refrigeration and freezing temperature zones, it is necessary to set up a variable temperature room. At present, most of the existing schemes to realize the refrigerator with three systems and five temperature zones are to add two more variable temperature zones in the refrigerator room, but considering the temperature range of the refrigerator room, the minimum temperature range of the newly added two variable temperature zones can only be To above 0°C, compared with the variable room that i...

AI Technical Summary

Problems solved by technology

At present, most of the existing schemes to realize the refrigerator with three systems and five temperature zones are to add two more variable temperature zones in the refrigerator room, but considering the temperature range of the refrigerator room, the minimum temperature range of the newly added two variable temperature zones can only be To above 0°C, compared with the variable temperature room set independently of the refrigerator and freezer, its temperature range is narrow, which cannot meet the user's needs for low temperature such as soft freezing and freezing

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