Control method for avoiding short starting of multi-cycle system and electric refrigerator applying same

Abstract

The invention discloses a control method for a multi-cycle refrigerator refrigerating system and an electric refrigerator applying the same. The control method for the multi-cycle refrigerator refrigerating system is characterized in that under the state of shutdown of the refrigerator, the temperature of any compartment rises to the temperature of the starting time, and a compressor is started; when refrigerating of the compartment is finished, the temperatures of other compartments are judged; if the temperature of any compartment is higher than (TON+TOFF) / 2, the compartment is switched to a refrigerating mode, till the temperatures of all the compartments are lower than (TON+TOFF) / 2; and the compressor is shut down, and the refrigerating request of the refrigerator exits. By decreasing the starting and shutdown times of the compressor, energy saving of the refrigerator is achieved, and the reliability of the compressor is improved.

Description

technical field [0001] The invention relates to the technical field of refrigerators, in particular to an electric-controlled refrigerator multi-cycle refrigeration system control method and the refrigerator. technical background [0002] Ordinary household refrigerators mostly belong to the vapor compression refrigeration system, which controls the temperature inside the box by controlling the compressor on and off. Fixed starting point T ON , the compressor starts, the refrigerator starts to cool, and when the temperature in the room drops to the temperature setting stop point T OFF At this time, the compressor stops, and the refrigerator quits cooling, so the compressor is repeatedly controlled to start and stop to maintain the low-temperature characteristic state in the box. [0003] Since the multi-cycle refrigeration system can realize independent cooling and independent temperature control of different rooms, compared with the single-cycle system, it has the advanta...

AI Technical Summary

Problems solved by technology

In the actual cooling process, when the cooling of a certain room ends, the temperature in other rooms has not risen to the start-up temperature T ON , but already very close to T ON , the compressor will be turned on again after a short period of shutdown due to cooling requests from other rooms, that is, the compressor will be turned on and off frequently, and every time the compressor is turned on and off will cause energy loss

Therefore, only through the compartment opening and closing temperature point (T ON , T OFF ) Judging whether the compressor starts and stops will inevitably lead to frequent compressor starts and stops, which will lead to an increase in the overall energy consumption of the refrigerator and reduce the life of the compressor, etc.

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