Uncontinuous refrigerator refrigeration temperature fluctuation precision control method

Abstract

A refrigerated storage temperature fluctuation accurate controlling method of indirect cool refrigerator includes: a temperature transducer is arranged in the cold storage room; the temperature of the cold storage room is detected and transmitted to a circuit board and a control program for controlling damper and refrigerator operation and the control program accurately controls the opening size of the damper; when the temperature transducer detects that the cold storage room needs cooling, the damper controlled by a controllable damper motor is opened to the largest extent; as the temperature gradually decreases, the opening size of the damper also gradually decreases; when the temperature of the cold storage room reaches the break point, the damper is closed. The ventilation circuit is from the air inlet of the electronic damper and the cold air flows in a thermal insulation layer, then blows to the interlayers of the cold storage room from the air outlets and finally returns to the freezing room through an air return outlet. The invention can accurately control the temperature of the cold storage room, avoiding the high fluctuation of local temperature of the refrigerator caused by large air supply in cooling, and improving the refrigerator quality.

Description

technical field [0001] The invention belongs to the refrigeration field, and relates to a refrigerator, especially a control method and device for an indirect refrigerator. Background technique [0002] At present, most of the cooling methods of the refrigerator room of the intercooler are: the cold air in the freezer room is sent to the inlet of the air duct of the refrigerator room through the channel foamed in the box, and there is a damper at the inlet or outlet of the air supply duct, and the opening and closing of the damper controls the refrigeration room. The temperature is fed back to the program after sensing the temperature through the temperature sensor, and then the program controls the damper switch, because the refrigeration temperature sensor senses the temperature inside the refrigerator, and the feeling of the cold air blown into the air outlet may be delayed, so it is easy to cause The sensed temperature difference of the same point in the refrigerating ro...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the cooling methods of the refrigerator room of the intercooler are: the cold air in the freezer room is sent to the inlet of the air duct of the refrigerator room through the channel foamed in the box, and there is a damper at the inlet or outlet of the air supply duct, and the opening and closing of the damper controls the refrigeration room. The temperature is fed back to the program after sensing the temperature through the temperature sensor, and then the program controls the damper switch, because the refrigeration temperature sensor senses the temperature inside the refrigerator, and the feeling of the cold air blown into the air outlet may be delayed, so it is easy to cause The sensed temperature difference of the same point in the refrigerating room is low when the damper is open, and the temperature rises higher when the damper is closed; the temperature sensing is not accurate enough, and the temperature control realized after feeding back to the program is naturally inaccurate, which may easily cause damage to the inside of the box. Hot and cold

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