METHOD FOR MANUFACTURING A THERMOELECTRIC GENERATOR BASED ON COMPOSITE MATERIALS Russian patent published in 2022 - IPC H01L35/34 

FIELD: energy conversion.

SUBSTANCE: invention relates to the field of direct conversion of thermal energy into electrical energy, in particular to a method for manufacturing thermoelectric generators used either for installation on the engine body of an aircraft, or for manufacturing the engine body of an aircraft itself with obtaining additional electrical power. Essence: a flexible substrate is taken, which is a tape made of composite materials of the class of carbon fibers. Two different types of conductive components are alternately applied to a flexible substrate, which are either a metal wire or a thread made of a number of semiconductor materials. Each conductive component is applied in such a way that it is the side of an isosceles triangle, the angle between these sides lies in the range from 10 to 170°. Each subsequent conductive component is applied inseparably from the previous one to form a contact of the components at the vertex of the angle of the isosceles triangle and at the vertices of the corners of the base of this triangle. In this case, each type of conductive component is applied parallel to the side of the previous triangle from the same conductive component. Further, welding of these conductive components is provided at the points of their contact, thus forming a set of electrical junctions. The resulting composite substrate with a thermoelectric structure is laid in a leaflet format so that the bend location corresponds to each junction of conductive components. The resulting leaflet is placed either in a flat shape or the desired radius of curvature and geometric shape are provided. Then the leaflet is stitched through with a composite carbon fiber thread in places where the junction does not pass. Further, the upper and lower sides of the leaflet are glued with a composite material from the class of carbon fibers in one or more layers, depending on the required geometric parameters of the thermoelectric generator.

EFFECT: expansion of the range of solutions to manufacture thermoelectric generators.

1 cl, 7 dwg