Performance testing system and method for thermoelectric refrigeration device

Abstract

The invention discloses a performance testing system and method for a thermoelectric refrigeration device. The system comprises a testing cabin, a pressure stabilizing layer, a testing layer and an air return layer are arranged in the testing cabin and communicated with one another, the thermoelectric refrigeration device to be tested is arranged in the testing layer, one side of the pressure stabilizing layer is connected with a vacuum air extractor, an air supply opening is formed in the other side, an air return opening is formed in the air return layer, and a temperature and humidity control device is arranged between the air return opening and the air supply opening; a hot end heat measuring module used for conducting heat exchange on the hot end of the thermoelectric refrigeration device to be tested and a cold end heat measuring module used for conducting heat exchange on the cold end of the thermoelectric refrigeration device to be tested are arranged in the testing layer. The performance testing system has the advantages that any temperature and humidity environment working condition can be simulated, the practical working performance of the to-be-tested thermoelectric refrigeration device used on any occasion can be measured, and the system has a high simulation reappearing ability; the system can further provide a vacuum testing environment and measure theoretical work parameters of the thermoelectric refrigeration device to be tested in the vacuum environment.

Description

technical field [0001] The invention relates to the field of refrigeration, in particular to a performance testing system and testing method of a thermoelectric refrigeration device. Background technique [0002] Thermoelectric refrigeration, also known as semiconductor refrigeration and Peltier refrigeration, is a refrigeration method based on semiconductor materials. By loading a DC power supply at both ends of the thermoelectric cooling element, one cold and one hot phenomenon will appear at both ends of the thermoelectric cooling element. If the direction of the current is changed, the cold and hot ends will be interchanged. The phenomenon of thermoelectric refrigeration was discovered in the early 19th century, but it was not until around 1960 that thermoelectric refrigeration devices began to develop. In recent years, with the continuous deepening of research in the field of thermoelectric refrigeration, thermoelectric refrigeration devices have been widely used in fi...

AI Technical Summary

Problems solved by technology

However, most of the existing testing equipment for thermoelectric cooling devices is aimed at the performance testing of thermoelectric cooling sheets, and there are still some deficiencies in the actual heat transfer performance testing of thermoelectric cooling devices.

In particular, there is still a certain technical gap in the performance testing system that is generally applicable to different heat transfer methods at the cold and hot ends, and can test parameters such as the actual cooling capacity, heat dissipation at the hot end, and actual working efficiency of various thermoelectric refrigeration devices.

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