CN100555672C - A kind of solar battery light collection cover - Google Patents

A kind of solar battery light collection cover Download PDF

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Publication number
CN100555672C
CN100555672C CNB2008100565853A CN200810056585A CN100555672C CN 100555672 C CN100555672 C CN 100555672C CN B2008100565853 A CNB2008100565853 A CN B2008100565853A CN 200810056585 A CN200810056585 A CN 200810056585A CN 100555672 C CN100555672 C CN 100555672C
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China
Prior art keywords
annular
daylighting lens
lens
center
daylighting
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CNB2008100565853A
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CN101267005A (en
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郑德智
汤鹏翔
张欲晓
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Beihang University
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Beihang University
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/52PV systems with concentrators

Abstract

A kind of solar battery light collection cover, comprise center daylighting lens and annular daylighting lens, it is characterized in that: daylighting lens in center adopt the planoconvex spotlight structure, annular daylighting lens adopt has the annular flat convex lens structures of certain altitude, center daylighting lens are positioned at the top of annular daylighting lens, and the circular cross-section that is surrounded of the lower surface of center daylighting lens and the top edges of annular daylighting lens is big or small consistent; Solar battery light collection cover of the present invention in use when angle of incidence of sunlight during more than or equal to 30 °, utilizes daylighting lens in center to the converging of sunray, and has strengthened the efficient of solar irradiation; When angle of incidence of sunlight during less than 30 °, utilize annular daylighting lens to make solar cell still can obtain enough illumination to the refraction of sunray, produce electric energy; The problem that the efficient that while solar battery light collection cover of the present invention has also avoided solar cell to cause owing to partial occlusion reduces even damages.

Description

A kind of solar battery light collection cover
Technical field
The present invention relates to a kind of optics, particularly a kind of solar battery light collection cover.
Background technology
Solar cell is a kind of light is had response and transform light energy can be become the device of electric power, and the material that can produce photovoltaic effect has many kinds, as: monocrystalline silicon, polysilicon, amorphous silicon, GaAs, selenium indium copper etc., their electricity generating principle is basic identical, is that example is described the light power generation process with the crystal.P type crystalline silicon can get N type silicon through Doping Phosphorus, forms the P-N knot.When the irradiate light solar cell surface, a part of photon is absorbed by silicon materials; The energy delivery of photon has been given silicon atom, makes electronics take place to move more, becomes free electron and gathers in P-N knot both sides and formed potential difference, and Here it is " photovoltaic effect "; When circuit is connected in the outside, under the effect of this voltage, flow through the certain power output of external circuit generation with having electric current; The essence of this process is: photon energy converts the process of electric energy to.
The power output of solar cell changes, and in different time and different location, the power output of same solar cell is different, and the peak power of solar cell is by the sun mean radiation intensity of locality and terminal power load decision.Because silicon materials are fragile, the glass material that need increase high strength, high transmission rate on the silicon materials surface constitutes complete solar cell as protective cover usually.The intensity of protective cover and light transmittance also directly influence the useful life and the photoelectric conversion efficiency of solar cell.
In order to improve the photoelectric conversion efficiency of solar cell, domestic utility model patent " 03223205.5---solar LED street lamp device " has designed a kind of structure and transmission device of novel solar LED street lamp, adopt the solar cell hunting gear, follow the rotation of the sun and rotate by the driven by motor solar cell, thereby reach the conversion efficiency of solar cell supreme good; But this system realizes comparatively complicated, and cost is higher, and reliability is lower, and electric machine control system need be safeguarded and the electric energy driving, and overall efficiency is not high, is not suitable for the use of small-sized solar battery system.Owing to still adopt classic flat-plate formula protecting solar cell cover, the power output that the tropical island effect that can not effectively avoid the solar cell part to be blocked producing is brought solar cell reduces or damages.
Utility model patent " 01270896.8---the overhead road lamp device of solar energy " has designed the overall structure of overhead solar street light, system adopts the protective cover of class elliposoidal plexiglass tent as solar cell, prevents effectively that solar cell is blocked separately (as leaf, birds droppings etc.) and permanent damage that the tropical island effect that produces is brought solar cell; Solar cell in this system adopts horizontal mounting means, can not solve hour lower problem of solar cell photoelectric conversion efficiency of angle of incidence of sunlight.
Summary of the invention
The technical problem to be solved in the present invention is: at deficiency of the prior art, a kind of solar battery light collection cover simple in structure is provided, effectively realize the refraction of sunlight, even when the angle of incidence of sunlight degree is less, make the light intensity incide solar cell surface still can bring into play higher photoelectric conversion efficiency, and can avoid the damage of the tropical island effect brought owing to the solar cell partial occlusion solar cell.
The technical solution adopted for the present invention to solve the technical problems: a kind of solar battery light collection cover, comprise center daylighting lens 1 and annular daylighting lens 2, it is characterized in that: center daylighting lens 1 adopt the planoconvex spotlight structure, annular daylighting lens 2 adopt has the annular flat convex lens structures of certain altitude, center daylighting lens 1 are positioned at the top of annular daylighting lens 2, and the circular cross-section that is surrounded of the lower surface of center daylighting lens 1 and the top edges of annular daylighting lens 2 is big or small consistent.
Described solar battery light collection cover be shaped as the spherical shell shape.
The angle of the normal of the line at the intersection any point of described center daylighting head mirror 1 and annular daylighting lens 2 and the circular cross-section center that lower edge surrounded of annular daylighting lens 2 and the circular cross-section that lower edge surrounded of annular daylighting lens 2 is 60 °.
Described center daylighting lens 1 can be realized angle of incidence of sunlight converging more than or equal to 30 ° sunray.
Described annular daylighting lens 2 can be realized the refraction of angle of incidence of sunlight less than 30 ° sunray.
Principle of the present invention: rays pass through lens can produce refraction, convex lens utilize this principle that parallel rays is converged to focus exactly, to increase light intensity, a kind of solar battery light collection cover of the present invention's design, utilize the refraction principle of lens exactly, the angle of getting the circular cross-section that lower limb surrounded of sunlight incident ray and annular daylighting lens is an angle of incidence of sunlight, when angle of incidence of sunlight is bigger, daylighting lens in center adopt planoconvex spotlight to realize converging of light, the light that the angle of incidence of sunlight degree is big converges to the solar cell surface that is fixed on dome skylight central authorities, increase solar energy, and then improve opto-electronic conversion usefulness; When The sun came up or landing, angle of incidence of sunlight is less, annular daylighting lens also adopt the annular flat convex lens to realize ray refraction, and the light refraction that the angle of incidence of sunlight degree is less increases its photoelectric conversion efficiency to the solar cell surface that is fixed on dome skylight central authorities.
The present invention's advantage that is had compared with prior art: designed solar cell dome skylight of the present invention, simple in structure, employing center daylighting lens and annular daylighting lens are formed, both can increase angle of incidence of sunlight less the time photoelectric conversion efficiency, can promote the light intensity of angle of incidence of sunlight degree when big again, the opto-electronic conversion usefulness of solar cell is further improved; And solar battery light collection cover of the present invention can prevent effectively also that solar cell is blocked separately (as leaf, birds droppings etc.) and permanent damage that the tropical island effect that produces is brought solar cell.
Description of drawings
Fig. 1 is the front view of solar battery light collection cover structure of the present invention;
Fig. 2 is the upward view of solar battery light collection cover structure of the present invention;
Fig. 3 is that the A-A of solar battery light collection cover of the present invention is to cutaway view;
Fig. 4 is that solar battery light collection cover of the present invention and solar cell installation concern schematic diagram;
Fig. 5 is the light refraction schematic diagram of solar battery light collection cover of the present invention.
1 is center daylighting lens among the figure, and 2 is annular daylighting lens, the light when 3 expression angle of incidence of sunlight are big, 4 expression angle of incidence of sunlight light hour, and 5 is solar cell, 6 is fixed head.
Embodiment
Introduce the present invention in detail below in conjunction with the drawings and the specific embodiments.
A kind of solar battery light collection cover of the present invention is made up of center daylighting lens 1 and annular daylighting lens 2, and center daylighting lens 1 adopt the planoconvex spotlight structure; Annular daylighting lens 2 adopt has the lens ring structure of certain altitude, center daylighting lens 1 are positioned at the top of annular daylighting lens 2, and the lower surface of center daylighting lens 1 is big or small consistent with the circular cross-section that top edges surrounded of annular daylighting lens 2, what guarantee that they can be intact is connected together mutually, and annular daylighting lens 2 cross sections also are planoconvex spotlight; Solar battery light collection cover of the present invention be shaped as the spherical shell shape, its front view as shown in Figure 1, upward view as shown in Figure 2, A-A to cutaway view as shown in Figure 3,
It is 60 ° that the center daylighting lens 1 of solar battery light collection cover and annular daylighting lens 2 intersections are appointed the angle of getting a bit with the circular cross-section normal that lower edge surrounded of the line of the circular cross-section mid point of the below of annular daylighting lens 2 and annular daylighting lens 2, as shown in Figure 3.
Introduce the performance of solar battery light collection cover in the present embodiment below in detail, solar cell is fixed in the middle position of solar panel, with the axle center correspondence of solar battery light collection cover and the centre of solar panel, solar battery light collection cover is bonded in solar panel forward surface, as shown in Figure 4, the device that bonding is good is put on the horizontal plane, the angle of getting sunray and horizontal plane is an angle of incidence of sunlight, and promptly the angle of sunlight light and solar cell board plane is an angle of incidence of sunlight; When angle of incidence of sunlight degree the time more than or equal to 30 °, because the center daylighting lens 1 of solar battery light collection cover adopt the planoconvex spotlight structure, utilize the focussing force of planoconvex spotlight, center daylighting lens 1 can converge to solar cell surface with sunray, increase light intensity, improve the usefulness of solar cell; When The sun came up and landing, when angle of incidence of sunlight degree the time less than 30 °, because the cross section of the annular daylighting lens 2 of solar battery light collection cover also is a planoconvex spotlight, utilize the refraction action of annular daylighting lens 2, sunray is refracted to solar cell surface, increase the incident angle and the light intensity of light, make solar cell still can obtain enough luminous energy during less than 30 ° and generate electricity at incident angle, as shown in Figure 5, and solar battery light collection cover of the present invention can prevent effectively that also solar cell is blocked separately (as leaf, birds droppings etc.) tropical island effect that produces permanent damage that solar cell is brought.

Claims (5)

1, a kind of solar battery light collection cover, comprise center daylighting lens (1) and annular daylighting lens (2), it is characterized in that: center daylighting lens (1) adopt the planoconvex spotlight structure, annular daylighting lens (2) adopt has the annular flat convex lens structures of certain altitude, center daylighting lens (1) are positioned at the top of annular daylighting lens (2), and the circular cross-section that is surrounded of the lower surface of center daylighting lens (1) and the top edges of annular daylighting lens (2) is big or small consistent.
2, a kind of solar battery light collection cover according to claim 1 is characterized in that: described solar battery light collection cover be shaped as the spherical shell shape.
3, a kind of solar battery light collection cover according to claim 1 is characterized in that: appointing the angle of getting a bit with the normal of the circular cross-section that lower edge surrounded of the line at the circular cross-section center that lower edge surrounded of annular daylighting lens (2) and annular daylighting lens (2) at the intersection of center daylighting lens (1) and annular daylighting lens (2) is 60 °.
4, a kind of solar battery light collection cover according to claim 1 is characterized in that: center daylighting lens (1) can be realized angle of incidence of sunlight converging more than or equal to 30 ° sunray.
5, a kind of solar battery light collection cover according to claim 1 is characterized in that: annular daylighting lens (2) can be realized the refraction of angle of incidence of sunlight less than 30 ° sunray.
CNB2008100565853A 2008-01-22 2008-01-22 A kind of solar battery light collection cover Active CN100555672C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2008100565853A CN100555672C (en) 2008-01-22 2008-01-22 A kind of solar battery light collection cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2008100565853A CN100555672C (en) 2008-01-22 2008-01-22 A kind of solar battery light collection cover

Publications (2)

Publication Number Publication Date
CN101267005A CN101267005A (en) 2008-09-17
CN100555672C true CN100555672C (en) 2009-10-28

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102074605A (en) * 2009-11-23 2011-05-25 鸿富锦精密工业(深圳)有限公司 Condensing device and solar energy gathering device
CN103452339A (en) * 2012-05-29 2013-12-18 成都振中电气有限公司 Condensing type solar cool rest pavilion
CN103644525A (en) * 2013-12-05 2014-03-19 凌裕文 Solar streetlamp
CN104966576A (en) * 2015-06-26 2015-10-07 安徽顺驰电缆有限公司 Energy-saving high-efficiency power cable

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