CN201937511U - Double reflection photovoltaic power generation device based on combined paraboloid - Google Patents
Double reflection photovoltaic power generation device based on combined paraboloid Download PDFInfo
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- CN201937511U CN201937511U CN2011200357858U CN201120035785U CN201937511U CN 201937511 U CN201937511 U CN 201937511U CN 2011200357858 U CN2011200357858 U CN 2011200357858U CN 201120035785 U CN201120035785 U CN 201120035785U CN 201937511 U CN201937511 U CN 201937511U
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- parabolic reflector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
Abstract
The utility model discloses a double reflection photovoltaic power generation device based on a combined paraboloid. The device comprises a smaller parabolic reflecting surface and a bigger parabolic reflecting surface, wherein concave surfaces of both the smaller and the bigger parabolic reflecting surfaces are opposite to each other; a focal point, the smaller parabolic reflecting surface and the bigger parabolic reflecting surface are sequentially mounted and fixed according to methods of focal point coincidence and axial normal line collineation; a photovoltaic electroplate is fixed at the bottom center of the concave surfaces of the smaller and the bigger reflecting surfaces; a metal radiating fin is connected at the back of the photovoltaic electroplate; and an AOA (Angle-Of-Attack) servo control rotating shaft is connected at the back of the bigger parabolic reflecting surface and connected with an AOA (Angle-Of-Avertence) servo control rotating shaft in the longitudinal direction via a mechanical mechanism. The device provided by the utility model has the advantages that the structure is simple, the intensity and the uniformity of light received by the photovoltaic electroplate from the sun are improved, the power generation efficiency is high, the service life of the photovoltaic electroplate is long, and the mechanical structure is simple.
Description
Technical field
The utility model relates to photovoltaic conversion field, specifically relates to a kind of light-focusing type photovoltaic power generation apparatus.
Background technology
New forms of energy are one of technical fields of the tool decision of 21st century development of world economy power, solar power generation does not produce any discarded object, pollution-free, noiseless, environment is had no adverse effects, and is desirable clean energy resource, and in November, 2007, the Xu Zhilong master of Xiamen University mentioned installation 1kW solar photovoltaic generation system in Master's thesis " development of butterfly photovoltaic electrification condenser ", compare with the fossil fuel generating, can reduce CO every year
2Discharge capacity 6002300kg, NO
2Discharge capacity 16kg, SO
2Discharge capacity 9kg and particulate 0.6kg, the popularization of concentrating to generate power, the pollution that has alleviated environment greatly.
All with the important content of solar energy resources utilization as the national sustainable development strategy, photovoltaic generation has broad application prospects in national governments.But solar radiation density is low, photovoltaic cell costliness etc. causes the cost of photovoltaic generating system high, and concentrating photovoltaic power generation substitutes expensive photovoltaic electroplax with the light-concentrating material of cheapness, is a kind of effective ways that address this problem.
Summary of the invention
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, favorable working performance, the electro-optical package long service life based on the combination paraboloidal bireflectance photovoltaic power generation apparatus.
Technical solution of the present utility model is:
A kind of based on the paraboloidal bireflectance photovoltaic power generation apparatus of combination, it is characterized in that: comprise little parabolic reflector, big parabolic reflector, big parabolic reflector concave surface is relative with little parabolic reflector convex surface, the two according to focus overlap, the mode of method axis conllinear, install and fix in proper order by the front and back of focus, little parabolic reflector, big parabolic reflector; The photovoltaic electroplax is fixed on the concave bottom center of big parabolic reflector, the photovoltaic electroplax back side links to each other with metal fin, the big parabolic reflector back side links to each other with the rotating shaft of angle of attack SERVO CONTROL, and the rotating shaft of angle of attack SERVO CONTROL links to each other with the SERVO CONTROL rotating shaft of East and West direction drift angle by mechanical connection mechanism.
Big parabolic reflector and little parabolic reflector are medal polish face or the form that is coated with the reflector.
The concave surface opening section of big parabolic reflector and little parabolic reflector is rectangle or circle.
Little parabolic reflector area is less than big parabolic reflector area, the parabolic parameter of the two according to the given optically focused of user than and the side to light of photovoltaic electroplax is long-pending determines, can guarantee converging sunlight and can both shine on the side to light of photovoltaic electroplax after the astigmatism of the optically focused reflection of big parabolic reflector concave surface and little parabolic reflector convex surface reflects.
Two dimensional motion by rotating shaft of angle of attack SERVO CONTROL and the SERVO CONTROL rotating shaft of East and West direction drift angle, make the concave surface of big parabolic reflector all the time in face of sunlight (convex surface of little parabolic reflector is all the time back to the sun), reach the purpose of the parabolic bireflectance concentrating to generate power of combination.
The utility model is rational in infrastructure, utilize concave paraboloid optically focused, the bireflectance principle of convex paraboloid astigmatism, optical intensity density and the uniformity that the photovoltaic electroplax is subjected to solar light irradiation have been improved, and the optically focused ratio can significantly be regulated by changing parabolic cambered surface parameter, eliminate the problem of traditional light-focusing type photovoltaic devices photovoltaic electroplax local heating inequality, had advantages such as generating efficiency height, the long service life of photovoltaic electroplax, mechanical structure be simple.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of an embodiment of the utility model.
Among Fig. 1,1 little parabolic reflector, 2 big parabolic reflectors, 3 photovoltaic electroplaxs, 4 angle of attack SERVO CONTROL rotating shafts, 5 East and West direction drift angle SERVO CONTROL rotating shafts, 6 mechanical support parts, 7 metal fins, 8 solar incident ray, 9 parabolic reflector method axis, 10 parabolic reflector focuses, 11 converge light, 12 scattered lights.
Embodiment
Form by little parabolic reflector 1, big parabolic reflector 2, photovoltaic electroplax 3, angle of attack SERVO CONTROL rotating shaft 4, East and West direction drift angle SERVO CONTROL rotating shaft 5, mechanical support parts 6, metal fin 7 etc. based on the paraboloidal bireflectance photovoltaic power generation apparatus of combination.
In conjunction with the accompanying drawings, the concave surface of the convex surface of little parabolic reflector 1 and big parabolic reflector 2 is staggered relatively, and its two focus overlaps at 10 places, and the method axis of little parabolic reflector 1 and big parabolic reflector 2 is collinear in 9 places; Front and back by focus, little parabolic reflector, big parabolic reflector install and fix in proper order; Photovoltaic electroplax 3 is fixed on the concave bottom center of big parabolic reflector 2, and the side to light of photovoltaic electroplax 3 is relative with the convex surface of little parabolic reflector 1, and the back side of photovoltaic electroplax 3 links to each other with metal fin 7; The back side of big parabolic reflector 2 links to each other with angle of attack SERVO CONTROL rotating shaft 4; Angle of attack SERVO CONTROL rotating shaft 4 links to each other with East and West direction drift angle SERVO CONTROL rotating shaft 5 by mechanical connecting element 6.
The convex surface of little parabolic reflector 1 is a reflecting surface, and the concave surface of big parabolic reflector 2 is a reflecting surface, and reflecting surface adopts medal polish or smears the manufacturing process realization sunlight reflection of reflecting coating; Two reflecting surface concave surface opening sections can be rectangle, or are circle.
When solar incident ray 8 so that the angular illumination that is parallel to big parabolic reflector 2 method axis 9 is to the concave surface of big parabolic reflector 2, can be by the concave surface optically focused of big parabolic reflector 2, form and converge light 11 and reflex on the convex surface of little parabolic reflector 1.The convex surface of little parabolic reflector 1 plays the astigmatism effect, and according to the even scattering of direction shown in the accompanying drawing, formation scattered light 12 also reflexes on the side to light of photovoltaic electroplax 3 with the above-mentioned light 11 that converges for it.Twice reflex by little parabolic reflector 1 and big parabolic reflector 2 promptly reaches the optical intensity density and the uniformity that enhancing photovoltaic electroplax 3 is subjected to solar light irradiation, avoids the problem of photovoltaic electroplax 3 local heating's inequalities, improves the purpose of photovoltaic electroplax 3 generating efficiencies.
In the implementation process, the convex surface area of little parabolic reflector 1 is less than the concave surface area of big parabolic reflector 2, in order to guarantee converging sunlight scattered light 12 and can both shine on the side to light of photovoltaic electroplax 3 after the astigmatism reflection of reflection of the optically focused of big parabolic reflector 2 concave surfaces and little parabolic reflector 1 convex surface, the parabolic focus parameter of little parabolic reflector 1 and big parabolic reflector 2 and cambered surface parameter can amass according to the side to light of given optically focused ratio of user and photovoltaic electroplax 3 calculate definite.
In order to guarantee that solar incident ray 8 all the time can be with the angular illumination that is parallel to big parabolic reflector 2 method axis 9 to the concave surface of big parabolic reflector 2, can control the two dimensional motion of angle of attack SERVO CONTROL rotating shaft 4 and East and West direction drift angle SERVO CONTROL rotating shaft 5 by peripheral control unit, make the concave surface of big parabolic reflector 2 all the time in face of sunlight.Because little parabolic reflector 1 is installed with big parabolic reflector 2 relative fixed, therefore, when the concave surface of big parabolic reflector 2 during in face of sunlight, the concave surface of little parabolic reflector 1 is also in face of sunlight, and its convex surface converges next sunray in face of big parabolic reflector 2 concave surfaces all the time, promptly converges light 11.
Claims (3)
- One kind based on the combination paraboloidal bireflectance photovoltaic power generation apparatus, it is characterized in that: comprise little parabolic reflector, big parabolic reflector, big parabolic reflector concave surface is relative with little parabolic reflector convex surface, the two according to focus overlap, the mode of method axis conllinear, install and fix in proper order by the front and back of focus, little parabolic reflector, big parabolic reflector; The photovoltaic electroplax is fixed on the concave bottom center of big parabolic reflector, the photovoltaic electroplax back side links to each other with metal fin, the big parabolic reflector back side links to each other with the rotating shaft of angle of attack SERVO CONTROL, and the rotating shaft of angle of attack SERVO CONTROL links to each other with the SERVO CONTROL rotating shaft of East and West direction drift angle by mechanical connection mechanism.
- 2. according to claim 1 based on the paraboloidal bireflectance photovoltaic power generation apparatus of combination, it is characterized in that: big parabolic reflector and little parabolic reflector are medal polish face or the form that is coated with the reflector.
- 3. according to claim 1 based on the paraboloidal bireflectance photovoltaic power generation apparatus of combination, it is characterized in that: the concave surface opening section of big parabolic reflector and little parabolic reflector is rectangle or circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200357858U CN201937511U (en) | 2011-02-10 | 2011-02-10 | Double reflection photovoltaic power generation device based on combined paraboloid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200357858U CN201937511U (en) | 2011-02-10 | 2011-02-10 | Double reflection photovoltaic power generation device based on combined paraboloid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201937511U true CN201937511U (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200357858U Expired - Fee Related CN201937511U (en) | 2011-02-10 | 2011-02-10 | Double reflection photovoltaic power generation device based on combined paraboloid |
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| CN (1) | CN201937511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110268289A (en) * | 2017-02-10 | 2019-09-20 | 株式会社Lg化学 | Asymmetric transmission film |
-
2011
- 2011-02-10 CN CN2011200357858U patent/CN201937511U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110268289A (en) * | 2017-02-10 | 2019-09-20 | 株式会社Lg化学 | Asymmetric transmission film |
| CN110268289B (en) * | 2017-02-10 | 2021-12-28 | 株式会社Lg化学 | Asymmetric transmission film |
| US11327211B2 (en) | 2017-02-10 | 2022-05-10 | Lg Chem, Ltd. | Asymmetric transmission film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20120210 |