CN104953943A - Light-condensing solar cell - Google Patents
Light-condensing solar cell Download PDFInfo
- Publication number
- CN104953943A CN104953943A CN201410111528.6A CN201410111528A CN104953943A CN 104953943 A CN104953943 A CN 104953943A CN 201410111528 A CN201410111528 A CN 201410111528A CN 104953943 A CN104953943 A CN 104953943A
- Authority
- CN
- China
- Prior art keywords
- solar cell
- cylindrical mirror
- diffraction lens
- light
- glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011521 glass Substances 0.000 claims description 15
- 238000009833 condensation Methods 0.000 claims description 10
- 230000005494 condensation Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 238000005496 tempering Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 239000005357 flat glass Substances 0.000 claims description 2
- 241000219739 Lens Species 0.000 description 22
- 210000000695 crystalline len Anatomy 0.000 description 22
- 210000004027 cell Anatomy 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000005341 toughened glass Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 206010051246 Photodermatosis Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- KTSFMFGEAAANTF-UHFFFAOYSA-N [Cu].[Se].[Se].[In] Chemical compound [Cu].[Se].[Se].[In] KTSFMFGEAAANTF-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- -1 and in actual use Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 230000006854 communication Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000156 glass melt Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 230000008845 photoaging Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
-
- 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 invention discloses a light-condensing solar cell. The light-condensing solar cell is characterized in that a light-condensing unit of the solar cell is composed of a low-multiplying-power diffraction lens and a simple secondary light-condensing cylindrical mirror. The light-condensing solar cell has a high tolerance on the deflection of an incident sunlight, and reduces dependence on the accuracy of a sun-tracing system.
Description
Technical field
The present invention relates to field of solar energy, particularly relate to a kind of concentrating solar battery module be made up of little multiplying power diffraction lens array.
Background technology
Compare with hull cell with crystal silicon battery battery, concentrating solar battery adopts III-V compounds of group battery of many knots, has the advantages such as large spectral absorption, high conversion efficiency.Concentrating solar battery module is primarily of solar cell, optical condensing element, sunlight tracker composition.Photospot solar technology is, by the mode of optically focused, the light on certain area is focused at a narrow and small region (focal spot) by condenser system, and solar cell only needs the size of focal spot area, thus significantly decreases the consumption of solar cell.Under similarity condition, multiplying power is higher, and required solar-electricity pool area is less.
In actual applications, Photospot solar module must make it all the time towards the sun by sun tracking system.The diffraction lens of large multiplying power requires very high to the intensive reading of sun tracking system.For 100 times of diffraction lenss, if incidence angle departs from 0.3 degree, optical efficiency will reduce to 50%.For increasing, tolerance being departed to sunlight incidence, secondary condensation lens can be added in solar cell surface, tolerance once can be brought up to.Because sun tracking system is in operation to keep to Japanese side to accuracy, need frequent starting motor to regulate the attitude of whole solar modules, such actual consumption output power of quite a few solar modules.Precision and wind direction etc. by sun tracking system affect, and concentrating solar module is difficult to the luminous efficiency reaching Theoretical Design.
Summary of the invention
In order to overcome the dependence of existing concentrating solar cell for sun tracking system, the invention provides a kind of Photospot solar module be made up of little multiplying power diffraction lens array and Simple secondary condensing cylindrical mirror.The tolerance that this concentrating solar battery departs from incident sunlight is large, decreases the dependence to sun tracking system precision.
In Photospot solar module provided by the present invention, secondary condensation cylindrical mirror and solar cell glue together and fix.The focus of diffraction lens is in the centre position of cylindrical mirror axis.Because the projecting air of the refractive index of glass, so incident light converges to enter after in cylindrical mirror through diffraction lens form photoconductive effect, cause incident light constantly homogenized in the communication process of cylindrical mirror inside.Each position of the solar battery sheet of such bottom surface can receive irradiation uniformly.Because the enlargement ratio of diffraction lens is not high, when incident light departs within the specific limits, major part converges light still can enter cylindrical mirror, so the tolerance that this condenser system departs from incident angle of light is higher.2 ~ 4 degree can be reached in the incident angle of light tolerance of optical efficiency more than 50%.
Secondary condensation cylindrical mirror in the present invention is one end is sphere, and the other end is the cylindrical mirror of plane, and diameter is 3 ~ 12mm, and length is 5 ~ 15mm, and material is glass.The long glass bar throwing surface with fire that heavy caliber glass preform makes required diameter is drawn under first the production of cylindrical mirror adopt high temperature. again by one end local secondary high-temperature heating of long glass bar, because the tension force on surface makes its self-assembling formation sphere after glass melts, then block according to Len req.Repeat above-mentioned localized heating and namely truncated process can be mass cylindrical mirror.Finally by the cylindrical mirror bottom truncation surface grinding and polishing together of batch, to form bright and clean end face.The mode of production cost of above secondary condensation lens is lower, is applicable to large-scale production.
Diffraction lens material in the present invention is transparent plastic, adopts injection molding manner rapid shaping.Diffraction lens to be sequentially arranged on toughened glass cover plate and by epoxy resin glue bond, to form lens arra.Single diffraction lens size is between 25x25mm to 50x50mm, and enlargement ratio is between 50 times to 100 times.
Accompanying drawing explanation
Fig. 1 is single Photospot solar module diagram;
Fig. 2 is the generalized section of Photospot solar module.
Wherein Reference numeral
1 is glass cover-plate;
2 is diffraction lens;
3 is metal substrate;
4 is secondary condensation cylindrical mirror;
5 is solar battery chip;
6 is the optical receiving region of solar cell.
Embodiment
Below in conjunction with embodiment and accompanying drawing, invention is elaborated.But embodiments of the present invention are not limited thereto.In accompanying drawing, similar mark represents identical or like.But in order to better understanding, the parts shown in accompanying drawing schematically show, they are drawn in proportion, namely the parts of this accompanying drawing do not represent full-size(d), and these full-size(d)s are all known for those of ordinary skills, therefore without the need to being described in detail.
Below with reference to Fig. 1, single Photospot solar module diagram.Single diffraction lens 2 gluing method is fixed on monoblock toughened glass cover plate 1.The thickness of glass cover-plate 1 is between 0.5 ~ 2.5mm.Glass cover-plate 1 is that any surface finish is smooth, the tempering plate glass of the high grade of transparency, and tempering mode is physical toughened or chemical tempering.The effect of glass cover-plate is mainly fixed and is protected the diffraction lens of plastic material, and in actual use, glass cover-plate Absorbable rod part ultraviolet, to reduce the photo-aging effect to plastics diffraction lens.The size of single diffraction lens 2 is between 30x30mm to 60x60mm, and enlargement ratio is between 50 times to 150 times.Diffraction lens material is transparent plastic, adopts injection molding manner one-shot forming.The actual solar modules used is made up of diffraction lens array, can adjust the size of array quantity as required, such as from 2x2 to 10x10.
The array that solar battery sheet 5 forms is fixed on metal substrate 5, and is connected by wire.The material of metal substrate 5 is selected from least one metal material in the group of aluminium alloy, stainless steel and copper formation, and its Main Function is heat radiation and fixed solar cell piece array.The main shaft of the main shaft of diffraction lens 2 and secondary condensation cylindrical mirror 4 overlaps, and keeps relative position to fix and parallel between glass cover-plate 1 and metal substrate 5 by structural member.
Secondary condensation cylindrical mirror 4 is fixed on solar battery sheet 5 center by gummed, and the bottom surface of cylindrical mirror is circular external with the square light receiving area 6 of cell piece.The photoelectric conversion material of solar battery sheet 5 is formed by being selected from least one semi-conducting material in group that GaAs, monocrystalline silicon, polysilicon, Copper Indium Gallium Selenide and cadmium antimonide form.Secondary condensation lens 4 adopt one end to be sphere, and the other end is the cylindrical mirror of plane, and diameter is 3 ~ 12mm, and length is 5 ~ 15mm, and material is glass.
Below with reference to Fig. 2, the planing surface schematic diagram of Photospot solar module.The concentration module signal of first, left side is when light is in vertical normal incidence, and focal point position is in the centre position of cylindrical mirror axis.Left side second concentration module signal when incident light depart from 4 degree inject time, focal point departs from axis left, but still in cylindrical mirror inside.
Above-described embodiment is better embodiment of the present invention; but embodiments of the present invention are not limited by the examples; any other change made under not deviating from Spirit Essence of the present invention and principle; modify; substitute, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (5)
1. a concentrating solar cell, it is characterized in that the light focusing unit of solar cell is made up of little multiplying power diffraction lens and Simple secondary condensing cylindrical mirror, the tolerance that this concentrating solar battery departs from incident sunlight is large, decreases the dependence to sun tracking system precision.
2. diffraction lens mirror according to claim 1, is characterized in that, diffraction lens is of a size of between 25x25mm to 50x50mm, and enlargement ratio is between 50 times to 100 times.
3. according in the claims described in any one secondary condensation cylindrical mirror, it is characterized in that, one end of cylindrical mirror is sphere, and the other end is plane, and diameter is 3 ~ 12mm, and length is 5 ~ 15mm, and material is glass.
4. according in the claims described in any one concentrating solar cell, it is characterized in that, secondary condensation cylindrical mirror is fixed on solar battery chip center by gummed, and the bottom surface of cylindrical mirror is circular external with the square light receiving area of cell piece.
5. according in the claims described in any one concentrating solar cell, it is characterized in that, diffraction lens array gummed is fixed on glass cover-plate, and the thickness of glass cover-plate is between 0.5 ~ 2.5mm, material is that any surface finish is smooth, the tempering plate glass of the high grade of transparency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410111528.6A CN104953943A (en) | 2014-03-25 | 2014-03-25 | Light-condensing solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410111528.6A CN104953943A (en) | 2014-03-25 | 2014-03-25 | Light-condensing solar cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104953943A true CN104953943A (en) | 2015-09-30 |
Family
ID=54168353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410111528.6A Pending CN104953943A (en) | 2014-03-25 | 2014-03-25 | Light-condensing solar cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104953943A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110076A (en) * | 2018-02-06 | 2018-06-01 | 江苏贝德莱特太阳能科技有限公司 | A kind of high-efficiency solar concentrating battery |
| CN110470393A (en) * | 2019-08-23 | 2019-11-19 | 南开大学 | The collection system of remote wide spectrum weak signal based on large aperture Fresnel Lenses |
| CN113933922A (en) * | 2021-10-22 | 2022-01-14 | 中国科学院光电技术研究所 | Ultrathin composite material diffraction lens for high-resolution imaging and preparation method thereof |
-
2014
- 2014-03-25 CN CN201410111528.6A patent/CN104953943A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110076A (en) * | 2018-02-06 | 2018-06-01 | 江苏贝德莱特太阳能科技有限公司 | A kind of high-efficiency solar concentrating battery |
| CN110470393A (en) * | 2019-08-23 | 2019-11-19 | 南开大学 | The collection system of remote wide spectrum weak signal based on large aperture Fresnel Lenses |
| CN113933922A (en) * | 2021-10-22 | 2022-01-14 | 中国科学院光电技术研究所 | Ultrathin composite material diffraction lens for high-resolution imaging and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103165717A (en) | Concentrating photovoltaic module comprising small Fresnel lens array | |
| US8101850B2 (en) | Asymmetric parabolic compound concentrator with photovoltaic cells | |
| US9477071B2 (en) | Method and device for concentrating, collimating, and directing light | |
| EP3455886B1 (en) | Optomechanical system for capturing and transmitting incident light with a variable direction of incidence to at least one collecting element and corresponding method | |
| CN101710804A (en) | Solar energy condensing electricity-generating device with summit-cutting curve condensing lens | |
| CN101939848A (en) | The method of solar energy low power concentrating device and maximization photovoltaic module electricity productioin | |
| US20150068584A1 (en) | Photovoltaic system with micro-concentrator array | |
| CN105308855A (en) | Adiabatic secondary optics for solar concentrators used in concentrated photovoltaic systems | |
| CN104953943A (en) | Light-condensing solar cell | |
| Shanks et al. | High-concentration optics for photovoltaic applications | |
| CN101170291A (en) | A solar device with parallel refraction lens | |
| Fu et al. | Evaluation and comparison of different designs and materials for Fresnel lens-based solar concentrators | |
| CN203608146U (en) | Flat type solar concentrator | |
| Coffey | Solar concentrators: using optics to boost photovoltaics | |
| US20120180847A1 (en) | Method for improving solar energy condensation efficiency in solar energy condensation electric power facility | |
| CN201037874Y (en) | Optical glass hot-pressing forming aspheric surface light gathering element | |
| CN101614388A (en) | Solar energy steam boiler | |
| KR101884790B1 (en) | Flexible hybird solar cell | |
| CN102401989A (en) | Light-gathering device and manufacturing method thereof | |
| CN201681948U (en) | Secondary optical lens used in focusing solar cell | |
| Liu et al. | A lens-to-channel waveguide solar concentrator | |
| CN201993518U (en) | Miniature precision optical device and solar panel thereof | |
| CN203014711U (en) | Concentrating photovoltaic system with fixed optical axis position | |
| Qandil et al. | Optimizing the Fresnel-Lens solar-concentrator design for tracking error mitigation in thermal applications, using a statistical algorithm | |
| CN103066145B (en) | A kind of condensation combination system based on minitype gallium arsenide photovoltaic cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150930 |
|
| WD01 | Invention patent application deemed withdrawn after publication |