A method and device for predicting the life of a thermoelectric refrigeration module

Abstract

The invention belongs to the field of the thermoelectric refrigeration field, and specifically discloses a thermoelectric refrigeration module life prediction method and device. The method comprises the following steps: accessing a thermoelectric refrigeration module into a work power supply, wherein the thermoelectric refrigeration module performs work according to experienced work-intermittent cycle number, and acquires the stable temperature at hot and cool ends in the work; and then accessing the thermoelectric refrigeration module to a test power supply, acquiring the voltage at the stable work, and measuring the residual voltage at the moment of switching off the test power supply, and computing a thermoelectric optimal value through the voltage and residual voltage of the thermoelectric refrigeration module in stable work, thereby judging the effectiveness of the thermoelectric refrigeration module; and finally predicting the residual life cycle number of the thermoelectric refrigeration module by combining the stable temperature at hot and cool ends, the experienced work-intermittent cycle number and the preset critical thermoelectric optimal value. The related data in theprediction method is easy to acquire, the processing method is simple and convenient, and the method can be applied to the life prediction of the thermoelectric refrigeration module at the long-term stable work occasion, and is in favor of more extensive application of the thermoelectric refrigeration module.

Description

technical field [0001] The invention belongs to the field of thermoelectric refrigeration, and more particularly relates to a method and device for predicting the life of a thermoelectric refrigeration module. Background technique [0002] Thermoelectric refrigeration is also called semiconductor refrigeration, and its basic work is based on the Peltier principle. Compared with traditional compression refrigerators, thermoelectric refrigerators have the dual functions of no pollution to the environment, small size, light weight, rapid cooling, reliable operation, high control precision, convenient maintenance, and cooling and heating according to the direction of current flow. Therefore, thermoelectric coolers are widely used in bioengineering, medical and health, industry, national defense, electronic technology and daily life. In a thermoelectric cooling system, the life of the thermoelectric cooling module determines the reliability of the entire system. Therefore, it is...

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Problems solved by technology

[0003] However, there is currently no systematic and efficient method for life prediction of thermoelectric refrigeration modules, which is extremely unfavorable for further research and promotion in the field of thermoelectricity. Therefore, a scientific and efficient method for life prediction of thermoelectric refrigeration modules is needed

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