Air indirect cooling refrigerator and temperature control method thereof

Abstract

The invention provides a temperature control method of an air indirect cooling refrigerator. The temperature control method includes steps of A, dividing n equal parts between upper limit voltage V1 and lower limit voltage Vn+1 according to the preset value n to acquire n+1 voltage values V1 to Vn+1, and acquiring upper limit temperature Tu and lower limit temperature Td according to preset temperature Ts of a refrigerating chamber and preset difference temperature delta T; B, detecting current temperature Tc of the refrigerating chamber, comparing the Tc with the Td, starting counting, and setting a counting initial value as 0; C, respectively applying V1 or Vn+1 to a first fan within a preset time period if Tc is larger than or equal to Tu or if Tc is smaller than Td, setting a counting value as 0, and returning to the step B; and D, applying voltage Vx+2 to the first fan within a preset time period if Tu is larger than Tc and Tc is larger than or equal to Td, and simultaneously adding 1 to x which is a current counting value. By the aid of the method, a fluctuation range of temperature of the refrigerating chamber is small, and preservation capacity is improved. The invention further provides the air indirect cooling refrigerator. The refrigerator prevents humidity loss of the refrigerating chamber.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to an air-cooled refrigerator and a temperature control method for the air-cooled refrigerator. Background technique [0002] At present, in the refrigerator industry, there are usually three types of refrigeration, namely direct cooling refrigerators, air-cooling refrigerators and direct air cooling refrigerators. Among them, the cooling speed of direct cooling refrigerators is relatively slow, and the freezing chamber needs manual defrosting. Condensation water will be generated, and the relative humidity of refrigeration is generally 30% to 50%. The temperature of the refrigerator room fluctuates with the start and stop of the compressor, and the fluctuation range is generally 3 to 6 degrees. The structure of the air-cooled refrigerator is relatively complicated, and the cost Higher, the relative humidity of refrigeration is generally 20% to 30%, and the temperatu...

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Problems solved by technology

[0002] At present, in the refrigerator industry, there are usually three types of refrigeration, namely direct cooling refrigerators, air-cooling refrigerators and direct air cooling refrigerators. Among them, the cooling speed of direct cooling refrigerators is relatively slow, and the freezing chamber needs manual defrosting. Condensation water will be generated, and the relative humidity of refrigeration is generally 30% to 50%. The temperature of the refrigerator room fluctuates with the start and stop of the compressor, and the fluctuation range is generally 3 to 6 degrees. The structure of the air-cooled refrigerator is relatively complicated, and the cost Higher, the relative humidity of refrigeration is generally 20% to 30%, and the temperature fluctuation range of the refrigerator is generally 5 to 10 degrees; the structure of the air direct cooling refrigerator is relatively complicated, the cost is high, the refrigerator will produce condensation water and the relative humidity is average 30% to 50%, and the temperature fluctuation range of the refrigerator is generally 3 to 6 degr

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