Cold-chain medicine heat preservation box capable of continuously and accurately controlling temperature, thermoelectric material, vacuum heat insulation plate material and preparation method of cold-chain medicine heat preservation box

Abstract

The invention discloses a cold chain medicine heat preservation box capable of continuously and accurately controlling temperature, a thermoelectric material, a vacuum heat insulation plate material and a preparation method thereof, and the cold chain medicine heat preservation box comprises an outer box body heat preservation layer, an ice raft, an inner box heat preservation layer, and a semiconductor thermoelectric component, a power supply, a temperature sensor, a control panel and a temperature control switch which are installed on the inner box heat preservation layer, the hot end and the cold end of the semiconductor thermoelectric component are respectively connected with the cooling fin and the cold conduction sheet; the temperature sensor is arranged on the inner side of the heat preservation layer of the inner box to detect the temperature of the inner box in real time, and the lithium battery, the control panel and the temperature control switch are all arranged on the heat preservation layer of the outer box body. The mode of combining the semiconductor thermoelectric component and the phase change material can provide a lower environment temperature for the hot end of the semiconductor thermoelectric component, so that the power required by thermoelectric cooling is reduced, the refrigeration efficiency is improved, and the power consumption is reduced; the temperature of the inner box can be changed through the thermoelectric components, and the purpose that one box has multiple purposes is achieved.

Description

technical field [0001] The invention relates to the technical field of medical incubators, in particular to a cold-chain medical incubator capable of continuous and precise temperature control, a thermoelectric material, a vacuum insulation board material and a preparation method thereof. Background technique [0002] The pharmaceutical industry has always been an important industry related to people's livelihood, especially with the spread of the global new crown pneumonia, the demand for refrigerated storage and transportation of vaccines and drugs has risen sharply. During the transportation of medicines and vaccines, there are strict requirements on the temperature. The most commonly used temperature ranges in the market are -20°C, 2-8°C, 0-5°C, and 15-20°C. At present, passive cold chain medical incubators generally use phase change materials to fill the insulation layer, but limited by the phase change temperature point of phase change materials, using the same phase c...

AI Technical Summary

Problems solved by technology

Chinese patent CN211876475U mentions the combination of thermoelectric sheet and phase change refrigeration to prolong the refrigeration and heat preservation time, but the working efficiency of a single thermoelectric sheet in the design is very low, the cooling capacity is limited, and the temperature in the incubator cannot be accurately controlled

Due to the internal influence factors among variables, it is difficult to optimize each variable at the same time, which makes it more difficult to optimize the zT value

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