Offset type semiconductor thermoelectric module adopting hexahedral thermoelectric arms

Abstract

The invention relates to an offset type semiconductor thermoelectric module adopting hexahedral thermoelectric arms. The offset type semiconductor thermoelectric module comprises two hexahedral semiconductor thermoelectric arms, copper conducting strips and insulating layers. The two hexahedral semiconductor thermoelectric arms are symmetrically arranged between the two copper conducting strips inparallel, and the insulating layers are arranged on the outer sides of the two copper conducting strips. The two hexahedral semiconductor thermoelectric arms are obtained by offsetting the vertexes of regular hexahedral thermoelectric arms at a certain angle and radius. The offset type hexahedral thermoelectric arm can be applied to modules of thermoelectric power generation systems of various structures, such as a cylindrical two-stage structure and a multilayer plate type structure. The offset structure can enable the whole system to have higher thermoelectric conversion efficiency, higherthermoelectric power generation efficiency and better heat transfer characteristics.

Description

technical field [0001] The invention belongs to the technical field of semiconductor thermoelectric modules, in particular to an offset semiconductor thermoelectric module adopting hexahedral thermoelectric arms. Background technique [0002] At present, the Π-type thermoelectric module is the most common module form, but in some thermoelectric power generation systems with common structures, such as cylindrical two-stage structure, multi-layer plate structure, etc., the use of offset structure thermoelectric modules can make the whole system have Higher thermoelectric conversion efficiency, thermoelectric power generation efficiency and better heat transfer characteristics. [0003] The current density distribution in the traditional hexahedral thermoelectric module is different. The current density on the thermoelectric arm is small and the distribution is uniform, but the current density inside the conductive electrode is large and the distribution difference is obvious. ...

AI Technical Summary

Problems solved by technology

As the current density on the surface of the conductive electrode is greater, the actual current flowing inside the electrode will be lower, which will lead to an increase in the resistance of the conductor and an increase in electrode loss

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