Thermoelectric module and thermoelectric generator

Abstract

The invention provides a thermoelectric module and a thermoelectric generator. The thermoelectric module comprises a thermoelectric arm and electrodes. The thermoelectric arm comprises P-type thermoelectric arms and N-type thermoelectric arms which are arranged alternately and which are connected in series. The electrodes comprise a first electrode connected with the low-temperature end of the thermoelectric arm and a second electrode connected with the high-voltage end of the thermoelectric arm. A flexible conductive material is embedded in the second electrode. The high-voltage end of the thermoelectric arm is in cooperative connection with the flexible conductive material. Since the flexible conductive material is embedded in the second electrode and the high-voltage end of the thermoelectric arm is in cooperative connection with the flexible conductive material, thermal stress caused by a mismatched high-temperature thermal expansion coefficient is relieved while electric contact performance is not influenced. Further, a radiation-shielding effect is achieved by the prolongation of a soldering lug such that radiative heat transfer is obviously reduced on the premise that cost is hardly increased and technology difficulty is hardly improved and that temperature distribution between transverse thermoelectric arms are not obviously influenced.

Description

technical field [0001] The invention relates to the field of thermoelectricity, in particular to a thermoelectric module and a thermoelectric generator. Background technique [0002] Thermoelectric devices refer to a type of electronic components that can directly realize the mutual conversion of electric energy and thermal energy. Its core is a thermoelectric module composed of multiple groups of thermoelectric materials with different carrier types connected in series and parallel. The application of thermoelectric devices has a history of more than one hundred years. In the early days, they were mainly used to detect temperature, such as thermocouples. Later, with the development of high-performance thermoelectric materials, they were used in electronic temperature control, waste heat power generation and aerospace battery packs and other fields. In the past 20 years, the miniaturization technology of thermoelectric modules has received more and more attention because of...

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a thermoelectric module and a thermoelectric generator to solve the problem in the prior art that the connection between the thermoelectric material at the high temperature end and the electrode is prone to failure

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