Medical storage box with adjustable temperature area and control method thereof

Abstract

The invention discloses a medical storage box with an adjustable temperature area and a control method thereof. The storage box mainly comprises a box body, a freezing chamber, a semiconductor refrigeration module, a middle baffle, an asynchronous motor, a conveying belt and a steam compression refrigeration system, wherein the semiconductor refrigeration module is installed in the middle baffle, the middle baffle divides the freezing chamber into an upper freezing chamber and a lower freezing chamber, the baffle can move up and down, the position of the baffle can be automatically adjusted through the asynchronous motor and the conveying belt according to the needed freezing temperature, an evaporator of the steam compression refrigeration system is located on the rear wall face of the storage box body and divided into an upper part and a lower part by the middle baffle, the upper part and the lower part provide refrigerating capacity for the upper freezing chamber and the lower freezing chamber respectively, when the semiconductor refrigeration module works, the upper freezing chamber is further cooled by the upper half evaporator and the semiconductor refrigeration module, and the lower freezing chamber provides heat dissipation for the hot end of the semiconductor refrigeration module.

Description

technical field [0001] The invention relates to the field of semiconductor refrigeration and medical storage boxes, in particular to a medical storage box with an adjustable temperature zone and a control method thereof. Background technique [0002] With the advancement of science and technology and the development of the medical industry, medical storage boxes are playing an increasingly important role in the modern medical system. Medical storage boxes are special storage boxes mainly used to store medicines, vaccines, blood, organs and reagents. It has become one of the essential medical equipment; biological samples need to be stored in a low temperature environment for a long time to maintain their activity. Generally speaking, their storage temperature needs to be below -80°C, and their temperature must maintain a certain degree of stability and uniformity. In response to this demand, the low-temperature bottom material storage box came into being. [0003] Most of t...

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Problems solved by technology

[0003] Most of the refrigeration methods of traditional medical storage boxes are vapor compression refrigeration, which has fast refrigeration speed, low refrigeration temperature and mature technology, but it also faces problems such as complicated technology, difficult to achieve large temperature difference refrigeration, and poor temperature control accuracy; vapor compression The temperature fluctuations in the storage cabinets of type refrigeration are large, and when the refrigeration temperature is low, single-stage compression cannot meet the temperature requirements, and multi-stage compression or cascade refrigeration is required, which greatly increases the complexity of the refrigeration system and the storage cabinet. manufacturing cost

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