Refrigerating box and humidity control method for refrigerating box

Abstract

The invention discloses a refrigerating box and a humidity control method for the refrigerating box. The refrigerating box comprises a box body, a humidity detection element arranged in the box body, a refrigeration circulation loop, a draught fan assembly, a first evaporator, a second evaporator, a first control valve assembly, a bypass defrosting channel, a second control valve assembly and a controller. The first evaporator and the second evaporator are connected in parallel. The first control valve assembly is connected to the refrigeration circulation loop and used for controlling the first evaporator and the second evaporator to operate alternately. The bypass defrosting channel is connected between a gas-liquid separator and the gas outlet side of a compressor and used for enabling a refrigerant flowing out of the gas outlet side of the compressor to flow through the first evaporator and the second evaporator or sequentially flow through the first evaporator and the second evaporator. The second control valve assembly is used for controlling the on-off of the bypass defrosting channel. The controller is in communication connection with the humidity detection element, the first control valve assembly and the second control valve assembly. According to the refrigerating box and the humidity control method for the refrigerating box, the problems that in the prior art, a temperature and humidity double-control refrigerating box is large in frosting amount, long in defrosting time, uneven in defrosting and low in defrosting efficiency are solved.

Description

technical field [0001] The invention relates to the technical field of medical refrigeration equipment, in particular to a refrigerator and a humidity control method for the refrigerator. Background technique [0002] Air-cooled small refrigeration equipment generally uses a finned evaporator installed in the inner space of the box, and is equipped with a fan and an air duct. Under the action of the fan, the air in the box circulates through the evaporator, and then the evaporator refrigerates the air flowing through the evaporator. [0003] In such products, because the surface temperature of the evaporator is very low, during the air circulation process in the box, the water vapor in the air will be precipitated on the surface of the evaporator below the air dew point temperature and form frost on the surface of the evaporator. or ice. When the surface of the evaporator is covered with frost or ice, the evaporator loses the cooling capacity of the air flowing through the...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problems of large amount of frosting, long defrosting time, uneven defrosting and low defrosting efficiency in the temperature and humidity dual-control refrigerators in the prior art, the present invention provides a new type of refrigerator, which is equipped with a first evaporator and The second evaporator is used alternately, which reduces the amount of frost on the evaporator and shortens the defrosting time, and the hot gas bypass defrosting method can evenly heat the evaporator, which improves the defrosting efficiency and reduces the defrosting time. The effect of the generated heat on the temperature inside the box ensures the performance of the entire refrigerator

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