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Thermoelectric refrigeration module life prediction method and device

A thermoelectric refrigeration and life prediction technology, applied in semiconductor working life testing, material thermal development, single semiconductor device testing, etc., can solve problems such as disadvantages, and achieve the effect of improving usability, easy measurement and processing, and good versatility

Active Publication Date: 2019-09-10
HUAZHONG UNIV OF SCI & TECH
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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

Method used

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  • Thermoelectric refrigeration module life prediction method and device
  • Thermoelectric refrigeration module life prediction method and device
  • Thermoelectric refrigeration module life prediction method and device

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Embodiment 1

[0042] The preset thermoelectric refrigeration module has worked - the number of intermittent cycles N = 100, the critical thermoelectric figure of merit Z 0 =0.35; the working power supply is a 6V constant voltage power supply, and the test power supply is a 0.2A constant current power supply, specifically including the following steps:

[0043] S1 connects the thermoelectric refrigeration module to the working power supply, and 60s after connecting the working power supply, the thermoelectric refrigeration module works until the temperature of the hot and cold ends reaches a steady state; then disconnects the working power supply, and the temperature of the hot and cold ends of the thermoelectric refrigeration module reaches a steady state 30s after disconnection ;

[0044] S2 repeats S1 100 times, and at the same time measures the stable temperature T of the cold end when the thermoelectric refrigeration module works until the temperature of the hot and cold ends reaches a ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/20G01R31/26
CPCG01N25/20G01R31/2642
Inventor 申利梅刘泽宇牛炳轩陆青青
Owner HUAZHONG UNIV OF SCI & TECH
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