Refrigerator and its temperature control method

Abstract

The invention discloses a refrigerator and its temperature control method. The method comprises the following steps: detecting the current temperature of a variable-temperature chamber; judging whether a difference between a shutdown temperature of the variable-temperature chamber and the current temperature is not lower than a first difference temperature; if yes, detecting an ambient temperature of the refrigerator, and judging whether the ambient temperature is not higher than a preset ambient temperature; and if yes, controlling a temperature compensation heater in a first preset mode to heat the variable-temperature chamber, otherwise controlling the temperature compensation heater to operate in a second preset mode. The refrigerator temperature control method of the inventive embodiment can precisely control the temperature compensation heater to carry out temperature micro-adjustment on the variable-temperature chamber in different modes when the set temperature of the variable-temperature chamber is relatively high (usually used for a refrigerating chamber), to make the temperature of the variable-temperature chamber quickly reach the set temperature, and has advantage of high control accuracy, thus contributing to food storage in the variable-temperature chamber and improving practicability of the refrigerator.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a refrigerator and a temperature control method for the refrigerator. Background technique [0002] For the temperature control method of the variable greenhouse in the existing refrigerators and refrigerator control methods, either the variable temperature range of the variable greenhouse is not large, and it cannot span multiple temperature zones, and users cannot choose according to their actual needs. Either the variable temperature room and the freezing room are used as an air duct circulation system, and the temperature control of the variable temperature room is greatly affected by the freezing room. As a result, when the temperature in the variable temperature room is set at a higher temperature, the temperature control of the room is not very accurate, resulting in some If the temperature is too low, the food that is not conducive to freshness will be dam...

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Problems solved by technology

[0002] For the temperature control method of the variable greenhouse, the existing refrigerators and refrigerator control methods, or the variable temperature range of the variable greenhouse is not large, and cannot span multiple temperature zones, and users cannot choose according to their actual needs.

Either the variable temperature room and the freezing room are used as an air duct circulation system, and the temperature control of the variable temperature room is greatly affected by the freezing room. As a result, when a higher temperature is set in the variable temperature room, the temperature control of the room is not very accurate, resulting in some If the temperature is too low, the food that is not conducive to freshness will be damaged, resulting in a single function of the warming room and poor practicability of the refrigerator

[0003] In addition, in the existing refrigerators and refrigerator control methods, when the set temperature of the variable room is high, the temperature of the variable room cannot be accurately controlled to reach the set temperature. Usually, the actual temperature of the variable room is lower than the set temperature of the variable room, resulting in Greenhouses, especially when used as refrigerators, because the temperature is too low, it is unfavorable for food preservation, which affects the practicability of refrigerators

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