Temperature control method and temperature control device for chill chamber of refrigerator and refrigerator

Abstract

The invention discloses a temperature control method and a temperature control device for a chill chamber of a refrigerator and the refrigerator. The refrigerator comprises a cold storage compartment,a cold storage fan and a cold storage evaporator, a cold storage air duct is defined between the cold storage compartment and a shell of the refrigerator, a cold storage chamber, the chill chamber located below the cold storage chamber and a fruit and vegetable box chamber located below the chill chamber are defined in the cold storage compartment, an air return opening is defined between the fruit and vegetable box chamber and the cold storage air duct, the cold storage fan is arranged at the air return opening, a first air outlet is defined between the chill chamber and the cold storage airduct, and a second air outlet is defined between the cold storage chamber and the cold storage air duct. The temperature control method comprises the steps that the temperature of the chill chamber after a compressor is shut down is collected; and the starting and stopping time ratio of the cold storage fan when the compressor starts next time is adjusted according to the temperature of the chillchamber and the preset shutdown temperature of the chill chamber. The cold storage fan is arranged at the lower part of the cold storage compartment, and the starting and stopping time ratio of the cold storage fan is adjusted to control the temperature of the chill chamber so that icing at a water discharging groove can be avoided, and the temperature difference of a cold storage area is prevented from being large.

Description

technical field [0001] The invention belongs to the technical field of electric appliance manufacturing, and in particular relates to a method for controlling the temperature of a refrigerator icehouse, a temperature control device for the refrigerator icehouse, and a refrigerator. Background technique [0002] Such as figure 1 Shown is a schematic diagram of a refrigeration system of a refrigerator in the related art, including a compressor, a rear external condenser, an anti-condensation pipe, a dry filter, a capillary tube, a freezing evaporator, a freezing fan, a refrigeration evaporator, and a refrigeration fan , Refrigeration sensor and temperature compensation heater, control the start and stop of the compressor according to the refrigeration temperature. [0003] For the single-system air direct cooling refrigerator, the plate tube evaporator structure is used for refrigeration. At present, there are usually two methods for the air circulation of the refrigerator ro...

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Problems solved by technology

[0003] For the single-system air direct cooling refrigerator, the plate tube evaporator structure is used for refrigeration. At present, there are usually two methods for the air circulation of the refrigerator room. One method is to install an air outlet on the upper part of the refrigerator room. This method has a large deviation in temperature control. , it is not easy to adjust the temperature zone around 0 degrees or the ice room; another way is to set the return air outlet on the upper part of the refrigerated room, that is, to adopt the upper suction scheme, but after this method runs for a period of time, the refrigerated drainage tank is easy to freeze , and then need to turn on the temperature compensation heater, which is not conducive to the energy saving of the refrigerator

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