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WO2012016381A1 - Lentille concentrant la lumière pour cellule solaire et son procédé de fabrication - Google Patents

Lentille concentrant la lumière pour cellule solaire et son procédé de fabrication Download PDF

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Publication number
WO2012016381A1
WO2012016381A1 PCT/CN2010/075725 CN2010075725W WO2012016381A1 WO 2012016381 A1 WO2012016381 A1 WO 2012016381A1 CN 2010075725 W CN2010075725 W CN 2010075725W WO 2012016381 A1 WO2012016381 A1 WO 2012016381A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
light incident
incident surface
reflective film
solar cell
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.)
Ceased
Application number
PCT/CN2010/075725
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English (en)
Chinese (zh)
Inventor
陈文彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PCT/CN2010/075725 priority Critical patent/WO2012016381A1/fr
Publication of WO2012016381A1 publication Critical patent/WO2012016381A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0038—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with ambient light
    • G02B19/0042—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with ambient light for use with direct solar radiation
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F77/00—Constructional details of devices covered by this subclass
    • H10F77/40—Optical elements or arrangements
    • H10F77/42—Optical elements or arrangements directly associated or integrated with photovoltaic cells, e.g. light-reflecting means or light-concentrating means
    • H10F77/484—Refractive light-concentrating means, e.g. lenses
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F77/00—Constructional details of devices covered by this subclass
    • H10F77/40—Optical elements or arrangements
    • H10F77/42—Optical elements or arrangements directly associated or integrated with photovoltaic cells, e.g. light-reflecting means or light-concentrating means
    • H10F77/488—Reflecting light-concentrating means, e.g. parabolic mirrors or concentrators using total internal reflection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S2023/83—Other shapes
    • F24S2023/834—Other shapes trough-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/30—Arrangements for concentrating solar-rays for solar heat collectors with lenses
    • F24S23/31—Arrangements for concentrating solar-rays for solar heat collectors with lenses having discontinuous faces, e.g. Fresnel lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
    • 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

Definitions

  • the present invention relates to a solar cell collecting lens and a method of manufacturing the same, and more particularly to a solar cell collecting lens using a plano-convex lens and a method of manufacturing the same. Background technique
  • a conventional solar cell concentrating device includes: a Fresnel Lense 1-01, a glass frame 1-02, and a glass substrate having a heat sink.
  • the solar cell 1-03 generates electric energy by collecting the light source by the Fresnel lens 1-01.
  • the Fresnel lens 1-01 is a micro-structured optical element that looks like a dart board from the front, consisting of a concentric circle of one ring and one ring.
  • the preparation of the above-mentioned solar concentrating device technology is complicated, for example, the preparation of the concentric circle structure of the Fresnel lens 1-01 is not easy; the glass frame 1-02 is produced by the grinding method, and the required grinding time is long, which is not conducive to mass production; The lens 1-01 and the glass frame 1-02 need to be attached to each other so that the two are closely connected, and the procedures are complicated. In addition, such collecting lenses are bulky and cannot be carried.
  • reflective solar devices use a variety of mirrors to converge the sun.
  • Common mirrors are parabolic mirrors, cylindrical mirrors, conical mirrors, and so on.
  • the mirror is coated with a reflective layer 1-05 (Fig. 1B) on the surface of the glass concave mirror 1-04, or polished or plated with a reflective layer on the metal surface.
  • the glass mirror may have a glass sheet 1-06 as a protection, and the glass concave mirror 1-04 and the glass sheet 1-06 have a hollow structure.
  • the main object of the present invention is to provide a solar cell collecting solid lens
  • the surface of the plano-convex lens 2-01 is a plane and a curved surface
  • the plane is called a smooth surface
  • the curved surface has a reflective film, called a reflective arc.
  • the surface has a recess in the center of the reflective arc surface for arranging a solar cell 2-04. After the light source passes through the light incident surface, it is reflected by the reflective curved surface 2-02 to the reflective film 2-03 at the center of the light incident surface. Next, the reflective film 2-03 reflects light to the solar cell 2-04 to collect light.
  • One of the objectives of the present invention is to provide a portable solar collector lens, the lens comprising: a plano-convex lens, the surface of the lens is a light incident surface and a reflective arc surface, the reflective arc surface faces the light incident surface, and the center of the light incident surface Having a reflective film; wherein a central portion of the reflective curved surface has a recess for providing a solar cell; wherein, after the light source penetrates into the light surface, the reflective film is reflected on the reflective arc surface to the center of the light incident surface, and the center of the light incident surface The reflective film reflects light to the solar cell.
  • the lens diameter is less than 5 cm. More preferably, the solar collector lens has a diameter of about 2.5 cm to 0.5 cm.
  • Another object of the present invention is to provide a simple solar cell collecting lens manufacturing method, the method comprising: providing a plano-convex lens mold; performing a glass mold forming method or a plastic injection molding method to form a plano-convex lens in a plano-convex lens mold
  • the lens has a light incident surface and a curved surface, the curved surface is spherical or aspherical, and a groove is formed in the center of the curved surface for arranging the solar cell; the plano-convex lens is taken out; a reflective film is formed on the curved surface; A reflective film is positioned at the center of the incident surface to obtain a solar cell collecting lens.
  • a plano-convex lens 2-01 is formed in the mold by a glass mold forming method or a plastic injection molding method. Wherein, the convex mask of the plano-convex lens 2-01 has a groove. Next, a reflective film 2-02 is formed on the curved surface, and another reflective film 2-03 is formed at the center of the incident surface to complete the solar cell collecting lens.
  • FIG. 1A and 1B are schematic views of a prior art solar cell concentrating device; and Fig. 2 is a schematic view showing a first embodiment of a solar cell concentrating lens of the present invention.
  • the solar cell collecting lens proposed by the invention can be applied to solar battery chargers in various fields, such as: notebook computers, mobile phones, cameras, video recorders, PDAs, e-books, navigation systems, MP3, MP4 and MP5, etc. Wait.
  • FIG. 2 is a schematic view of a first embodiment of a solar cell collecting lens of the present invention.
  • the surface of the plano-convex lens 2-01 is a plane and a curved surface, and the plane is called a light incident surface, and the curved surface has a reflective film called a reflective curved surface 2-02, and the reflective curved surface 2-02 faces the surface.
  • Glossy wherein, the center of the entrance surface has a reflective film 2-03, and a center of the reflective arc has a groove, the groove is aligned with the normal reflection film 2-03 normal line, and the solar cell 2-04 is placed in the groove in.
  • the light penetrates the light incident surface of the lens 2-01, and is reflected by the reflective curved surface 2-02 to the reflective film 2-03 at the center of the light incident surface, and then reflected to the solar cell 2-04 via the reflective film 2-03 to collect the light. Effect.
  • the above lens 2-01 material may be glass, quartz glass or plastic.
  • the reflective curved surface 2-02 of the lens 2-01 may be spherical or aspherical.
  • the reflective film 2-03 and the reflective curved surface 2-02 can be The inorganic film is added to the metal film or the inorganic material film or the metal film, and the metal film material may be selected from one of the following: gold, silver, aluminum, and alloys thereof.
  • the above inorganic material film may be a multilayer film in which a titanium dioxide layer and a silicon dioxide layer are alternately combined.
  • the anti-reflection film 2-05 may be coated or deposited on the surface of the light incident surface.
  • the anti-reflection film 2-05 is located on the surface around the reflective film 2-03.
  • the anti-reflection film 2-05 material may be a titanium dioxide (Ti0 2 ) and silicon dioxide (SiO 2 ) multilayer film, magnesium fluoride (M g F 2 ), zirconium dioxide (Zr0 2 ) and silicon dioxide (Si0 2 ) multilayer film and the like.
  • solar cells There are many types of solar cells, and depending on the type of materials, they can be classified into two types: compound semiconductors and silicon crystal systems.
  • the compound semiconductor III-V GaAs, InP, InGaP
  • the compound semiconductor III-V has high photoelectric conversion efficiency of about 26% to 28%. If it is fabricated by a multi-junction tandem cell (InGaP/GaAs/InGaAs, multijunction tandem cell), Its maximum conversion efficiency can reach 33.3%.
  • solar cell 2-04 is a semiconductor III-V (GaAs, InP, InGaP) battery.
  • the solar cell collecting lens 2-01 can be carried around.
  • the diameter can be less than or equal to 5 cm. More preferably, the lens has a diameter of about 2.5 cm to 0.5 cm.
  • the present invention discloses a method of manufacturing the solar cell collecting lens 2-01 described above.
  • a plano-convex lens mold is provided.
  • a glass or plastic plano-convex lens 2-01 is formed by the glass mold forming method or the plastic injection molding method in the above-mentioned plano-convex lens mold.
  • the plano-convex lens 2- 01 described above is taken out to obtain a plano-convex lens 2-01.
  • the plane of the plano-convex lens 2-01 is called a light incident surface
  • the convex surface is called an arc surface
  • the above-mentioned curved surface has a groove in the center, and the solar cell 2-04 can be placed in the groove to receive light.
  • the above-mentioned curved surface shape may be a single-focus spherical structure or an aspherical structure.
  • a reflective film 2-02, 2-03 is formed on the surface of the curved surface and the center of the light incident surface by a plasma ion method, an evaporation method or a coating method.
  • the reflective film 2-03 at the center of the entrance surface can also be attached to the surface of the light incident surface by means of a sticker.
  • the glass mold used in the present invention causes a molding method or a plastic injection molding method, and the technique is simple and easy to mass-produce.
  • Mold-forming method uses glass to increase with temperature, viscosity decreases The low profile places the preformed glass preform in the mold.
  • the glass is deformed by raising the temperature to the vicinity of the softening point of the glass and pressing the surface of the mold, and after cooling, the pressure is removed, the mold is removed, and the finished product is taken out.
  • the product has the advantages of high precision and high reliability.
  • the above injection molding means that the plastic is sent to the injection molding machine. After the barrel is heated and melted, the screw advances the molten metal melt (Melt) into the mold by using the screw forward force to make the product. Shaping, after cooling and solidifying, remove the finished product.
  • Melt molten metal melt
  • an anti-reflection film 2-05 may be formed on the surface of the light-incident surface by using a plasma ion method, an evaporation method, or a coating method to reduce light reflection. Increase incident light.
  • the reflective film 2-03 is pasted, deposited or coated at the center of the entrance surface.
  • the above method for forming a film comprises: a plasma ion method, an evaporation method, a coating method or a paste sticker.
  • a common optical film production method is an evaporation method, which is: converting a material from a solid state into a gaseous state or an ionic state, and a gaseous state or The ionic material reaches the glass (or plastic) surface by evaporation. When the gaseous or ionic material reaches the surface, it gradually deposits to form a film. In order to make the film highly pure, the evaporation method should be completed in a high vacuum environment.
  • the plasma ion method is deposited by an ion plasma assisted electron gun method, and the reaction conditions are as follows:
  • the neutralizer acts to discharge the charge of the neutralizing ion source, so there is a matching ratio. If the current of the ion source is 900 mA, the ratio of the neutralizer match is 150%, and the current value of the neutralizer is 1350 Ma.
  • the present invention provides a solar cell collecting lens that reflects light by reflecting the curved surface 2-02 of the plano-convex lens 2-01 and the central reflecting film 2-03 to achieve a good concentrating effect.
  • the present invention also provides the above-described method for manufacturing a collecting lens, which utilizes a glass mold forming method or a plastic injection molding method to rapidly prepare a collecting lens, which simplifies the procedure for manufacturing a collecting lens.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Toxicology (AREA)
  • Photovoltaic Devices (AREA)

Abstract

L'invention concerne une lentille concentrant la lumière pour une cellule solaire et son procédé de fabrication. La lentille concentrant la lumière comprend une lentille plano-convexe (2-01). Les surfaces de la lentille plano-convexe sont respectivement une surface plane et une surface arquée réfléchissante (2-02) orientée vers la surface plane. Un film réfléchissant (2-03) se trouve au centre de la surface plane. Une rainure se trouve au centre de la surface arquée réfléchissante pour positionner la cellule solaire (2-04). Après avoir traversé la surface plane, la lumière est réfléchie par la surface arquée réfléchissante sur le film réfléchissant situé au centre de la surface plane, et est réfléchie ensuite sur la cellule solaire par le film réfléchissant situé au centre de la surface plane.
PCT/CN2010/075725 2010-08-05 2010-08-05 Lentille concentrant la lumière pour cellule solaire et son procédé de fabrication Ceased WO2012016381A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2010/075725 WO2012016381A1 (fr) 2010-08-05 2010-08-05 Lentille concentrant la lumière pour cellule solaire et son procédé de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2010/075725 WO2012016381A1 (fr) 2010-08-05 2010-08-05 Lentille concentrant la lumière pour cellule solaire et son procédé de fabrication

Publications (1)

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WO2012016381A1 true WO2012016381A1 (fr) 2012-02-09

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PCT/CN2010/075725 Ceased WO2012016381A1 (fr) 2010-08-05 2010-08-05 Lentille concentrant la lumière pour cellule solaire et son procédé de fabrication

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0358929A2 (fr) * 1988-09-10 1990-03-21 Aisens Co. Ltd. Capteur photoélectrique
CN1726410A (zh) * 2002-10-11 2006-01-25 光处方革新有限公司 密致折叠型光学元件照明透镜
US20090071467A1 (en) * 2005-07-28 2009-03-19 Light Prescriptions Innovators, Llc Multi-junction solar cells with a homogenizer system and coupled non-imaging light concentrator
US20090159126A1 (en) * 2007-12-22 2009-06-25 Solfocus, Inc. Integrated optics for concentrator solar receivers
CN101510741A (zh) * 2008-05-21 2009-08-19 杨传银 一种太阳能聚光装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0358929A2 (fr) * 1988-09-10 1990-03-21 Aisens Co. Ltd. Capteur photoélectrique
CN1726410A (zh) * 2002-10-11 2006-01-25 光处方革新有限公司 密致折叠型光学元件照明透镜
US20090071467A1 (en) * 2005-07-28 2009-03-19 Light Prescriptions Innovators, Llc Multi-junction solar cells with a homogenizer system and coupled non-imaging light concentrator
US20090159126A1 (en) * 2007-12-22 2009-06-25 Solfocus, Inc. Integrated optics for concentrator solar receivers
CN101510741A (zh) * 2008-05-21 2009-08-19 杨传银 一种太阳能聚光装置

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