Line-focusing solar photo-electric conversion device with high multiplying power

A photoelectric conversion device and photoelectric converter technology, applied in the field of solar photoelectric conversion, can solve the problems of low focusing magnification of reflectors, achieve high concentration magnification, reduce costs, and be easy to replace

Inactive Publication Date: 2012-07-11
河北英沃泰电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the disadvantage of low focusing magnification of the reflector in the form of line focus in the prior art, and to provide a line focus solar photoelectric conversion device

Method used

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  • Line-focusing solar photo-electric conversion device with high multiplying power
  • Line-focusing solar photo-electric conversion device with high multiplying power
  • Line-focusing solar photo-electric conversion device with high multiplying power

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] see figure 1 , it can be seen that the present invention includes at least one solar receiving unit, and the solar receiving unit includes an airtight housing 4 and a trough-type semi-parabolic reflector 2 between the front and rear side walls of the housing 4. A cylindrical lens 6 is arranged at the light convergence place of the trough type semi-parabolic reflector 2, and a solar photoelectric converter 5 is arranged at the light output place of the cylindrical lens 6, and the described cylindrical lens 6 and the solar photoelectric converter 5 are fixedly connected On the right inner wall of the housing 4 .

[0022] Its design principle is based on the principle of equal optical path, see image 3 , the sunlight L1 is incident on the reflective surface of the trough-type semi-parabolic mirror, the reflected light L2 is converged at the cylindrical lens, and after refraction, L3 is emitted from the cylindrical lens. Wherein, L1+L2+nL3=L'1+L'2+nL'3=constant, n is the...

Embodiment 2

[0029] see figure 2 , is another solution of the present invention, comprising at least one solar energy receiving unit, the solar energy receiving unit comprising an airtight casing 4 and a trough-type semi-parabolic reflector between the front and rear side walls of the casing 4 2. Set a hyperboloid reflector 7 at the light convergence point of the trough semi-parabolic reflector 2, set a cylindrical lens 6 at the light convergence point below the hyperboloid reflector 7, and set a solar photoelectric conversion at the light output of the cylindrical lens 6 The device 5, the hyperboloid reflector 7, the cylindrical lens 6 and the solar photoelectric converter 5 are all arranged on the right inner wall of the housing 4.

[0030] The optical path in the present embodiment is: the sunlight is incident on the reflection surface of the trough-type semi-parabolic reflector 2, converges on the hyperbolic reflector 7 through reflection, and then reflects to the cylindrical lens 5, ...

Embodiment 3

[0035] see Figure 5 , The solar receiving units can be provided with 2, 3 or more, and an array is formed between the solar receiving units, and the structure of the solar receiving units can adopt the structure in the first embodiment or the second embodiment. The solar photoelectric converters 5 between adjacent solar receiving units are connected in series, in parallel or mixed to realize high-power solar power generation.

[0036] In summary, the present invention adopts two-level line focusing, the first-level focusing adopts the trough-type semi-parabolic reflector 2, and the second-level focusing adopts the cylindrical lens 6, which realizes high-magnification line focusing and increases the allowable incident angle of sunlight . Especially the trough-type semi-parabolic reflector 2 adopts a thin plate of plastic or metal, and a reflective film with high reflectivity is set on the thin plate, and then the thin plate is inserted into the semi-parabolic groove, which solv...

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Abstract

The invention discloses a line-focusing solar photo-electric conversion device with high multiplying power, belonging to the technical field of solar application. The line-focusing solar photo-electric conversion device with high multiplying power comprises at least one solar receiving unit, wherein the solar receiving unit comprises an airtight shell and a groove-type half-paraboloid reflecting mirror arranged between the front side wall and the back side wall of the shell, a cylindrical lens is arranged at a ray convergence part of the groove-type half-paraboloid reflecting mirror, a solar photo-electric converter is arranged at a light output part of the cylindrical lens, and the cylindrical lens and the solar photo-electric converter are fixedly connected to the inner wall of the right side of the shell. The other scheme of the invention is that a reflecting mirror with double curved surfaces is additionally arranged at the ray convergence part of the groove-type half-paraboloid reflecting mirror, and a cylindrical lens is arranged at a ray convergence part under the reflecting mirror with double curved surfaces. By adopting secondary light condensation with the first level ofreflected linear line focusing light and the second level of transmission-type line focusing light, the solar focusing multiplying power is added through the secondary light condensation, and an allowed incident angle of the sunlight is increased.

Description

technical field [0001] The invention belongs to the field of photoelectric conversion of solar energy, and in particular relates to a line focusing solar photoelectric conversion device. Background technique [0002] Solar photovoltaic power generation technology converts solar energy directly into electrical energy, which is one of the most promising ways of utilizing solar energy. However, the main problems existing in the photovoltaic power generation industry are: solar cell materials are expensive, and the cost of power generation is too high. A high-magnification focusing system is an effective way to reduce the cost of power generation because it can save a lot of expensive semiconductor materials. [0003] The commonly used method is to use a Fresnel lens to form a point focus. The use of Fresnel lenses has the following disadvantages: ①Fresnel lenses are expensive, and the cost is difficult to reduce due to its optical performance requirements; ②Fresnel lenses hav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N6/00G02B5/10G02B1/10H02S40/22
CPCY02E10/50
Inventor 冯冠华钟玮
Owner 河北英沃泰电子科技有限公司
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