Thermoelectric generator capable of effectively absorbing solar energy

Abstract

The invention discloses a thermoelectric generator capable of effectively absorbing solar energy. A semiconductor thermoelectric power generation sheet assembly comprises an upper insulation heat-conduction plate I, a semiconductor thermoelectric device and a lower insulation heat-conduction plate II; the three are sequentially arranged from top to bottom; a carbon nano-particle film is attached to the upper surface of the upper insulation heat-conduction plate I; a cooling system is attached to the lower surface of the lower insulation heat-conduction plate II; and an insulation layer is arranged around the semiconductor thermoelectric power generation sheet assembly. The device is simple in structure and small in volume; when the sun as a heat source irradiates the carbon nano-particle film, due to the rough micro-surface and carbon nano-particles of different particle diameters, sunlight is nearly absorbed by the carbon nano-particle film completely; a radiator rapidly dissipates heat on the lower surface of the semiconductor thermoelectric power generation sheet assembly, so that a cold end is formed; after the cold and hot ends of the semiconductor thermoelectric power generation sheet based on the seebeck effect form a temperature difference, thermoelectromotive force is generated; electric energy is stably output; furthermore, the investment cost is low; the service lifeis long; and electricity generation is steady.

Description

technical field [0001] The invention relates to a power generation device, in particular to a thermoelectric power generation device for efficiently absorbing solar energy. Background technique [0002] As a green and renewable energy, solar energy has the characteristics of abundant reserves, clean and environmental protection, and wide distribution. It is an ideal alternative energy source for fossil fuels and has been widely used in various fields. Thermoelectric power generation technology is a solid-state energy conversion technology based on the Seebeck effect, which has the characteristics of simple structure and high reliability. [0003] The Seebeck effect, also known as the first thermoelectric effect, refers to the thermoelectric phenomenon in which the potential difference between two substances is caused by the temperature difference between two different electrical conductors or semiconductors. The essence is that when two metals are in contact, a contact pote...

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Problems solved by technology

[0008] At present, the energy transfer process of such concentrating devices and heat collectors is relatively complicated. It needs to heat the fluid working fluid and then transfer the heat to the semiconductor thermoelectric power generation sheet. The energy loss is large and the input cost is high. At the same time, the traditional concentrating The device is large in size and complex in structure, which not only takes up space when used, but also is not easy to install

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