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Built-in type high-density thermoelectric generator

A thermoelectric generator, high-density technology, applied in the direction of thermoelectric devices, generators/motors, circuits, etc., can solve the problems of low thermoelectric conversion efficiency, small output power, not compact size, etc., to reduce the influence of heat transfer, temperature difference Enhanced, compact effect

Inactive Publication Date: 2010-10-27
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

The characteristics of this type of thermoelectric generator can be summarized as follows: the thermoelectric conversion element is placed externally and the cold source is clamped at a close distance, so there are problems such as small temperature difference, low thermoelectric conversion efficiency, not compact size, low output power, and high price. At the stage of thermoelectric material selection and conversion principle research

Method used

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  • Built-in type high-density thermoelectric generator
  • Built-in type high-density thermoelectric generator
  • Built-in type high-density thermoelectric generator

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Embodiment Construction

[0031] Such as figure 1As shown, the thermoelectric generator of the present invention is composed of an adiabatic thermoelectric converter with built-in mesh conversion elements and a separate independent cold source system. Among them, 1 is the internal combustion engine; 2 is the exhaust pipe; 3 is the thermoelectric converter, which is installed in the middle of the exhaust pipe of the internal combustion engine, as close as possible to the engine, and is connected to the exhaust pipe 2; the independent cold source 6 is separated from the thermal system and adopts compensation The wire 5 is connected to the hot-end large-scale conversion network to form a thermoelectric circuit, which is electrically connected; the condenser 7, the pressure pump 8, and the fan 9 are connected by pipelines; 10 is a cooling pipeline, and the cooling liquid circulates in the cooling system to cool the thermoelectric circuit. Cold junction and output wire 11.

[0032] The functions of the com...

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Abstract

This invention relates to an integral high density thermo-generator including a heat insulating thermoelectric converter of integral net conversion elements and a separated independent sink among which, the converter is connected in an exhaust pipe, multi-stage axial arrayed thermoelectric converting elements are set in the channel, parallel semiconductor thermal couples comprise stereo electrodes to be connected and form a conversion network, the compensation lead of the network and the cold end connector in the cold source form a large scale thermoelectric circuit by connection. Cooling liquid circulation is applied for the independent sink, the system outputs DC current when operating to electricity-dependent devices by regulation of a DC regulator.

Description

Technical field [0001] The invention relates to a thermoelectric generator, in particular, its heat source is the waste heat flow in the pipeline, and the thermoelectric conversion element is arranged in the pipeline, which has an axial-multi-stage-network-integrated-stacked structure; the independent cold source and The thermal system is separated, and the large-scale thermoelectric circuit is formed by connecting the wires with the thermoelectric conversion elements, and the energy conversion system that automatically converts waste heat energy directly into electrical energy. Background technique [0002] During the operation of the internal combustion engine, about 60% of the chemical energy of fuel combustion is not effectively utilized, and most of it is discharged into the ambient atmosphere through the exhaust pipe. The energy in the exhaust mainly includes waste heat energy and flow kinetic energy. The temperature is between 800-1200K. The airflow flows at a high sp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N11/00H01L35/00H10N10/00
Inventor 张征
Owner SOUTH CHINA UNIV OF TECH
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