Refrigerator and sterilization control method thereof

Abstract

The invention discloses a refrigerator which comprises a refrigerating chamber, a door body and an ultraviolet sterilization module. The ultraviolet sterilization module comprises a control unit and a deep ultraviolet LED unit, and the deep ultraviolet LED unit is movably arranged in the refrigerating chamber and electrically connected with the control unit; and the intelligent degree is high, the distance between the deep ultraviolet LED unit and foods contained in the refrigerating chamber is automatically adjusted through a driving unit, and therefore the appropriate sterilization distance is guaranteed, the ultraviolet light using rate is improved, and the sterilization and bacteriostat efficiency is improved. The invention further discloses a sterilization control method of the above refrigerator. The sterilization control method comprises the following steps that a distance measurement unit detects the position of the foods in the refrigerating chamber; the control unit controls the driving unit to drive the deep ultraviolet LED unit to move to the sterilization position according to food position information fed back by the distance measurement unit; and the distance between the deep ultraviolet LED unit and the foods in the refrigerating chamber is automatically adjusted, so that the sterilization distance of the deep ultraviolet LED unit and the foods is appropriate, the ultraviolet light using rate is improved, the sterilization and bacteriostat efficiency is improved, and the intelligent degree is high.

Description

technical field [0001] The invention belongs to the technical field of household appliances, and in particular relates to a refrigerator and a sterilization control method thereof. Background technique [0002] With the improvement of living standards, people's requirements for quality of life are also getting higher and higher, and refrigerators are usually used to keep food fresh. Different temperatures are suitable for the growth of different bacteria. According to the suitable growth temperature, bacteria can be roughly divided into thermophagocytic bacteria, thermophagic bacteria and psychrophagic bacteria; For many psychrophagous bacteria, this temperature is the most suitable for growth. Even if the food is placed in the refrigerator, bacteria will still breed. Eating food infected with bacteria will cause intestinal diseases and other health problems. The bacteria in the refrigerator are basically brought in by food, mainly Salmonella, Shigella, Listeria, Yersinia, ...

AI Technical Summary

Problems solved by technology

Therefore, in order to reduce the amount of bacteria in the refrigerator, the refrigerator must be cleaned and disinfected at least once a month. However, using disinfectants and other chemicals to disinfect the refrigerator is not only troublesome to operate, but also causes secondary pollution due to unclean disinfectants.

[0003] In order to make the refrigerator have a sterilizing function, there are refrigerators with a sterilizing device installed inside, which use ultraviolet rays to sterilize. However, the position of the current sterilizing device is fixed, and the position of the food in the refrigerator will change, resulting in low utilization of ultraviolet light and low sterilization efficiency. Low, the operation of the existing refrigerator ultraviolet sterilization technology is not intelligent enough

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