High-temperature-difference annular segmented thermoelectric material generator and radial equal-sectional-area thermocouple unit thereof

The invention relates to a thermoelectric power generation device. A thermocouple unit of an annular thermoelectric material generator comprises a p-type thermoelectric material supporting leg and ann-type thermoelectric material supporting leg, wherein the p-type thermoelectric material supporting les and the n-type thermoelectric material supporting leg are respectively a segmented structure and are connected through high-conductivity metal connecting sheets/electrodes, two end faces of the thermocouple unit are concentric arc end faces, theta is taken as a circumferential included angle ofthe thermoelectric material supporting leg, r1 and r2 are radial distances from the circle center of a cylindrical heat source to an upper end and a lower end of the thermoelectric material supporting legs respectively, radial widths and radiuses of the p-type thermoelectric material supporting leg and the n-type thermoelectric material supporting leg in the thermocouple unit are in direct proportion, thicknesses and the