Cylindrical thermoelectric generator

Abstract

The invention provides a cylindrical thermoelectric generator which comprises an octagon exhaust pipe, a sleeve, thermoelectric generating assemblies, heat insulating layers, radiating fins and cooling water jackets, wherein the octagon exhaust pipe is divided into two end parts and a main body part, and the sleeve and the octagon exhaust pipe are coaxially sheathed at the outermost side of the main body part of the octagon exhaust pipe; the thermoelectric generating assemblies and the heat insulating layers are arranged on each side of the main body part of the octagon exhaust pipe; the upper end of each thermoelectric generating assembly is connected with the radiating fin; the radiating fins, the thermoelectric generating assemblies and the heat insulating layers are all symmetrically distributed on the main body part of the octagon exhaust pipe with respect to the center of the octagon exhaust pipe; both sides of each radiating fin is respectively provided with a cooling water jacket, the side end of the cooling water jacket is connected with an internal through hole of the radiating fin, and the top end of the cooling water jacket is connected with an external cooling system; and the generator is fixedly connected with the outside by a flange. The thermoelectric generator can ensure the full contact between cold and hot surfaces of the thermoelectric generating assembly, the stable generating power and convenient installation, and can be used in multiple situations.

Description

technical field [0001] The invention belongs to the design field of thermoelectric generators, in particular to a cylindrical thermoelectric generator. Background technique [0002] Thermoelectric power generation technology is a technology that uses the Seebeck effect of semiconductor materials to directly convert heat energy into electrical energy. It is an ideal technology to solve the current problems of environmental pollution and energy waste caused by direct discharge of waste heat. The thermoelectric generator is a device made of thermoelectric power generation technology. The device has the characteristics of compact structure, environmental protection, no noise during operation, and long service life. It plays an important role in military, aerospace and other fields. At present, with the increasing number of automobiles, the emission of automobile exhaust is also increasing day by day, and the problems of air pollution and resource waste caused by direct emission ...

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Problems solved by technology

The disadvantages of the present invention are: (1) the air inlet of the heat collector in this patent needs to be connected with the exhaust pipe of the automobile, and the specific position with the exhaust pipe of the automobile is determined by the limit temperature that the thermoelectric sheet can bear, so the The specific position of the heat collector is uncertain; (2) The specific position of the heat collector is uncertain, which leads to the need to change the exhaust pipe structure when installing and fixing, and the heat collector does not have a special connection device, which makes the installation and fixing more complicated; (3) The water inlet and outlet of each cooling water tank are connected in series, which makes the temperature of the cold end of the thermoelectric power generation module on each surface uneven, which easily leads to unstable power generation

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