A thermoelectric refrigeration performance measuring device and method thereof

Abstract

The invention relates to a thermoelectric refrigeration performance measuring device and a thermoelectric refrigeration performance measuring method. The thermoelectric refrigeration performance measuring device is characterized in that a thermoelectric refrigeration module, a confined space and a water-cooled heat sink are arranged in a vacuum cavity, a section of heating wire is placed in the confined space, a thermal load is subjected to analog loading, the water-cooled heat sink is used for controlling the temperature of a hot end of the thermoelectric refrigeration module, the thermoelectric refrigeration module is positioned between the confined space serving as a cold end unit and the water-cooled heat sink serving as a hot end unit, a cold end thermocouple is arranged on a contact surface between the confined space and the thermoelectric refrigeration module, a hot end thermocouple is arranged on a contact surface between the water-cooled heat sink and the thermoelectric refrigeration module, the cold end thermocouple and the hot end thermocouple are used for acquiring the working temperatures of the cold end and the hot end and sending the working temperatures to a data acquisition instrument, a digital power meter is used for respectively acquiring the working voltage, the working current and the thermal electromotive force of the thermoelectric refrigeration module and the power of a heating wire, and a computer is used for receiving the data of the data acquisition instrument and the digital power meter and carrying out analytic processing on the data. The thermoelectric refrigeration performance measuring device is compact and reasonable in structure and simple and convenient in testing and has high testing accuracy.

Description

technical field [0001] The invention relates to a refrigeration technology, in particular to a thermoelectric refrigeration performance measuring device and a method thereof. Background technique [0002] With the aggravation of energy crisis and environmental problems, thermoelectric refrigeration based on thermoelectric effect has attracted more and more attention due to its outstanding characteristics. Compared with other refrigeration methods, thermoelectric refrigeration has unique advantages such as no mechanical moving parts, no compressor, no refrigerant, compact structure, no noise, no pollution, and long service life. It is widely used in military, aerospace, Energy, microelectronics, optoelectronic devices and other equipment and industrial and commercial products. At present, the biggest problem facing the practical application of thermoelectric refrigeration is that the cooling capacity of the thermoelectric refrigeration module is small, and it is difficult to...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problems of complex structure and inconvenient testing process of existing thermoelectric refrigeration performance measurement devices, and proposes a thermoelectric refrigeration performance measurement device and its method, which are used to measure the cooling capacity Q and refrigeration coefficient COP of thermoelectric modules under actual application conditions. , thermoelectric figure of merit Z and other thermodynamic performance measurements

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