A high-temperature start-up control method for an air-cooled refrigerator

Abstract

The invention relates to the technical field of electric refrigerators, particularly an air-cooled refrigerator high-temperature start control method. In the air-cooled refrigerator high-temperature start control method, the refrigerator is an air-cooled refrigerator; a compressor, an evaporation blower, an evaporator temperature sensor, a chamber temperature sensor and an evaporator are arranged in the refrigerator; the evaporator temperature sensor is arranged on the evaporator; and the compressor, evaporation blower, evaporator temperature sensor and chamber temperature sensor are respectively connected with a control panel of the refrigerator. The control method comprises the following steps: S1. initializing power-on; 2. clearing high-temperature high-load state zone bit; and S3. dividing the refrigerator operating state into a high-temperature high-load state (if Tx>=Txz) and a stable operation state (if Tx<Txz) by the control panel according to the chamber temperature Tx detected by the chamber temperature sensor. The invention can ensure the air-cooled refrigerator to operate normally in a high-temperature environment under the voltage-fluctuation abnormal working conditions on the premise of not increasing the cost or influencing the normal use.

Description

technical field [0001] The present invention relates to the technical field of refrigerators, and more specifically, to a method for controlling the high-temperature start-up of an air-cooled refrigerator. Background technique [0002] With the development of the economy and the improvement of people's living standards, the groups and regions using air-cooled refrigerators are becoming more and more extensive. People have higher and higher requirements on the performance of air-cooled refrigerators, and the use environments of air-cooled refrigerators are becoming more and more diverse, especially in tropical areas, which require that air-cooled refrigerators can still operate normally under high temperature and high load conditions. Summer is the season with the largest sales volume of air-cooled refrigerators and the most frequent fluctuations in household electricity voltage. During transportation in a high-temperature environment, the temperature in the refrigerator room...

AI Technical Summary

Problems solved by technology

Summer is the season with the largest sales volume of air-cooled refrigerators and the most frequent fluctuations in household electricity voltage. During transportation in a high-temperature environment, the temperature in the refrigerator room will be very high. In the case of voltage fluctuations, the compressor of the refrigerator will inevitably cause startup failure and unstable operation due to overload work under abnormal working conditions, which will affect the normal judgment and use of users.

[0003] The above problems can be solved by using a compressor with better cooling capacity, but the cost will increase accordingly

[0004] Chinese patent CN201210284791.6 provides a control method for refrigerators suitable for high-temperature environments, which adopts the method of staggering the peak load of each room by using fixed delay optimization control. Although it can solve the problem of starting air-cooled refrigerators in multi-temperature areas in high-temperature environments, but It is not suitable for single-temperature zone air-cooled refrigerators, and the fixed delay is not conducive to the performance difference of the compressor, which affects the freezing speed and cooling speed of the refrigerator

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