THERMOELECTRIC GENERATOR Russian patent published in 2022 - IPC H01L35/04 H01L35/12 H01L35/32 

FIELD: thermal energy into electrical energy conversion.

SUBSTANCE: invention relates to the field of direct conversion of thermal energy into electrical energy. The effect is achieved by the fact that in a thermoelectric generator containing a heat source with a heat conductor, on the working surface of which a thermoelectric module and an air radiator, made in the form of sequentially interconnected plates of the same length but different heights, are installed in series in thermal relation, low plates form the base of the radiator, and the high plates - both the cooling fins and the base of the radiator, the entire structure of which is electrically isolated from the heat-removing surface of the thermoelectric module. The cooling fins of the radiator are made of thermoelectric materials and form branches of "n" and "p"-type conductivity, which are mechanically fixed and electrically connected to thermoelements using low electrically conductive plates, one part of which forms inter-element, and the other - intra-element hot commutation sleeping. Low plates for intra-element switching on one side facing the branches of the "n"-type of conductivity, along its entire length and height, are equipped with an integral mechanical connection with the branches, made in the form of an adhesive layer of additional heat-resistant electrical insulation. The opposite side of all these plates is equipped with an electrically conductive switching sublayer, which also forms a permanent soldered or welded contact with the p-type legs. All low plates for interelement switching are made of electrically conductive materials and equipped with a switching sublayer on both sides along their entire length and height to create permanent connections with the thermoelement legs in the form of soldering or diffusion welding, and the thermoelement legs at both ends are equipped with end bends made under at right angles to the length of the branch and directed in opposite directions. The length of the bends is equal to the distance between the legs and, consequently, to the width of the low connection plates, and the hot and cold junctions of the thermoelement legs are additionally connected to each other using butt welding or soldering.

EFFECT: improving the operation of the radiator as a heat engineering device for removing heat from the generator thermoelectric battery (TEB) due to the thermal conductivity of the thermoelement legs, ensuring the generation of additional electrical power for the consumer without the consumption of additional fuel or heat coming from the coolant by utilizing the heat removed from the thermoelectric module into the environment.

4 cl, 2 dwg