▎ 摘　　要

NOVELTY - Thermoelectric wristband, comprises flexible fiber as a substrate, heat insulating cotton as a heat insulation material, P-type thermoelectric material and N-type thermostatic material according to two columns are staggered and corresponded to each other. The array arranged in parallel in each column is arranged and coated on the substrate and electrically connected in sequence. The whole bending forms a 3 D annular structure. USE - The thermoelectric wristband is useful for collecting and generating energy with the temperature difference direction of human skin and external environment (claimed). ADVANTAGE - The thermoelectric wristband: is clean, safe and economical; has excellent wear-resistant effect, simple operation, high wearing comfort, no moving component and high temperature difference utilization rate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the thermoelectric wristband, comprising (i) adding 0.05-0.2 g N-type thermoelectric material, 3-10 wt.% dispersant cetyl trimethyl ammonium bromide and 5-15 wt.% polyurethane into 5-20 ml solvent, and carrying out ultrasonic treatment and stirring to prepare an N-type coating, (ii) adding 5-10 vol.% dimethyl sulfoxide into 2-10ml P-type thermoelectric material and stirring to prepare a P-type coating, (iii) sequentially coating the P-type coating and N-type coating in two rows on the flexible substrate in a parallel array manner, where the one row is started by P-type coating area. The other row is started by the N-type coating area. The P, N-type coating area of two rows sequentially corresponding to each other, P and N-type coating areas of each row are arranged at intervals, then the P, N-type coating areas are connected end to end by the conductive material and connecting the left and right corresponding P, N-type coating regions and the adjacent rows sequentially connected end to end to form a path electrically connected in series, (iv) folding the substrate coated with the thermoelectric material back along two sides of the center line of the middle silver glue coated area and jointing the sides to form a hollow belt shape. The heat insulating material is filled in the hollow part and then the end part is bent and jointed into a ring shape to form a 3D annular structure to obtain the final product.