Thermoelectric performance measuring device and measuring method of thermoelectric refrigeration chip

Abstract

The invention relates to a thermoelectric performance measuring device and a measuring method of a thermoelectric refrigeration chip. The thermoelectric performance measuring device comprises a water cooling radiator, a constant temperature bath, a direct current voltage stabilizing and current stabilizing power supply, a thermoelectric refrigeration chip, platinum resistors, a data collector, a computer, a multichannel electric parameter measuring apparatus, a vacuum pump and a vacuum cover, wherein the hot end face of the thermoelectric refrigeration chip is adhered on the water cooling radiator, the water cooling radiator and the constant temperature bath are mutually connected to perform cold-heat exchange, the direct current voltage stabilizing and current stabilizing power supply is connected with the two electrodes of the thermoelectric refrigeration chip, the two platinum resistors are respectively adhered on the cold end face and the hot end face of the thermoelectric refrigeration chip, the platinum resistors are used for collecting temperature values and sending the temperature values to the data collector, and the data collector collects data and sends the data to the computer; the multichannel electric parameter measuring apparatus respectively collects the working voltage, the working current and the thermal electromotive force of the thermoelectric refrigeration chip and sends the data to the computer; and the water cooling radiator and the thermoelectric refrigeration chip are arranged in the vacuum cover, and the vacuum pump is used for pumping the air in the vacuum cover. The device is simple, the cost is low, the testing process is simple and the measuring precision is high.

Description

technical field [0001] The invention relates to a thermoelectric performance testing technology, in particular to a measuring device and method for thermoelectric performance of a thermoelectric refrigeration sheet. 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 advantages. Compared with other refrigeration methods, the thermoelectric refrigeration method 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 and aerospace special Energy, microelectronics, optoelectronic devices and other equipment and industrial and commercial products. At present, the biggest problem facing the practical application of thermoelectric cooling is the low cooling efficiency of thermoelectric cooli...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problem of complex structure and low efficiency of the thermoelectric cooling chip performance testing device in the thermoelectric refrigerator, and proposes a thermoelectric performance measuring device and method of the thermoelectric cooling chip, which realizes the Seebeck coefficient, total resistance and total heat of the thermoelectric cooling chip Guide measurement, simple device, high measurement accuracy

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