Temperature control method and temperature control device of refrigerator icehouse and refrigerator

Abstract

The invention discloses a temperature control method, a temperature control device and a refrigerator for an ice room of a refrigerator. The refrigerator includes a refrigerating room, a refrigerating fan and a refrigerating evaporator. There are refrigerating room, an ice room under the refrigerating room and a fruit and vegetable box room under the ice room. A return air outlet is defined between the fruit and vegetable box room and the refrigerating air duct. The refrigerating fan is arranged at the return air outlet. A first air outlet is defined between the air ducts, and a second air outlet is defined between the refrigerating room and the refrigerating air duct. The temperature control method includes: collecting the temperature of the ice house after the compressor stops; The preset stop temperature adjusts the on-off time ratio of the refrigeration fan at the next compressor start-up. By setting the refrigerating fan at the lower part of the refrigerating room and adjusting the on-off time of the refrigerating fan to control the temperature of the ice room, it is possible to avoid freezing at the drainage tank and avoid large temperature differences in the refrigerating area.

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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