Temperature Correction Control Method of Air-cooled Refrigerator
An air-cooled refrigerator and a parameter correction technology, which is applied in the field of temperature compensation and correction of air-cooled refrigerators, can solve the problems of high average temperature of refrigerators, deviation and reduction of refrigerator temperature and set value, etc., and achieves the effect of remarkable accuracy.
Active Publication Date: 2022-03-11
河南新飞制冷器具有限公司
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Problems solved by technology
[0008] 1. When the ambient temperature is too low, the evaporating temperature on the evaporator will decrease with the decrease of the ambient temperature, so that the temperature of the cold air blown out will also be low. Since the sensor senses the temperature with a certain hysteresis, when the sensor senses the temperature is ready After shutdown, because the temperature of the air outlet is lower than normal, the average temperature in the refrigerator will be lower
[0009] 2. When the ambient temperature is too high, the evaporating temperature on the evaporator will increase with the increase of the ambient temperature, so the temperature of the cold air blown out will also be high. Since the sensor perceives the temperature with a certain hysteresis, when the sensor perceives After the temperature is ready to stop, because the temperature of the air outlet is higher than the normal temperature, the average temperature in the refrigerator will be higher
[0010] In the existing control method, because the temperature correction parameter does not consider the influence of the ambient temperature, the temperature in the refrigerator deviates from the set value when the ambient temperature is too high or too low
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[0040] Such as figure 1 As shown, the present invention discloses a method for correcting the temperature correction parameters of an air-cooled refrigerator. The air-cooled refrigerator has three compartments, which are respectively a refrigerating room, a variable room and a freezing room, and the refrigerating room, the variable room and the freezing room are respectively set There is more than one temperature sensor;
[0041] The electric control device of the air-cooled refrigerator receives the temperature signals from the temperature sensors in the refrigerating room, variable room and freezing room, and calculates the average temperature TPJ in each room; the refrigerating room, variable room and freezing room have target temperatures set by users respectively. TMB;
[0042] The temperature correction parameter is WX, and the unit is °C; for each compartment, WX=8×(TPJ-TMB);
[0043] The electronic control device of the air-cooled refrigerator pre-stores the designer...
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The invention discloses a method for correcting the temperature correction parameters of an air-cooled refrigerator. In addition to the four working stages A, B, C and D, the electric control device of the air-cooled refrigerator determines the correction according to the following method According to the formula: corrected temperature difference = original temperature difference + corrected temperature correction parameter, the corrected temperature difference is calculated, and then the operating state of the air-cooled refrigerator is controlled according to the corrected temperature difference; and the WXXZ of the freezer compartment are respectively: in the third ring temperature interval, the WXXZ of the refrigerator compartment, the variable temperature room and the freezer compartment are each respectively: by adopting the present invention, in the state of ambient temperature variation, the temperature control of the refrigerator is compared to the uncorrected The temperature correction parameters have remarkable accuracy, so that the temperature of each compartment is consistent with the set temperature.
Description
technical field [0001] The invention relates to the technical field of refrigeration, in particular to a method for temperature compensation and correction of an air-cooled refrigerator. Background technique [0002] Refrigerators have already entered thousands of households, and are essential electrical appliances for storing food at low temperature in most families. Traditional refrigerator temperature control has a large temperature deviation with the change of ambient temperature. When the ambient temperature (ambient temperature) is low, the temperature inside the refrigerator will be lower than the set temperature, and when the ambient temperature is high, the temperature inside the refrigerator will be higher than the set temperature. . With the improvement of people's requirements on the temperature accuracy of refrigerators, the precise temperature control of refrigerators at various ambient temperatures is urgent. Accurate temperature control requires precise tem...
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IPC IPC(8): F25D29/00
CPCF25D29/00F25D2600/02F25D2600/06
Inventor 王鸿海孙磊马芳奇何晖仪志恒
Owner 河南新飞制冷器具有限公司