WO2009109084A1 - Structure protectrice de cellules pour batterie solaire - Google Patents

Structure protectrice de cellules pour batterie solaire Download PDF

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Publication number
WO2009109084A1
WO2009109084A1 PCT/CN2008/070513 CN2008070513W WO2009109084A1 WO 2009109084 A1 WO2009109084 A1 WO 2009109084A1 CN 2008070513 W CN2008070513 W CN 2008070513W WO 2009109084 A1 WO2009109084 A1 WO 2009109084A1
Authority
WO
WIPO (PCT)
Prior art keywords
chip
solar battery
solar cell
solar
region
Prior art date
Application number
PCT/CN2008/070513
Other languages
English (en)
Chinese (zh)
Inventor
王水菊
陈天庆
万学超
Original Assignee
玉晶光电(厦门)有限公司
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 玉晶光电(厦门)有限公司 filed Critical 玉晶光电(厦门)有限公司
Publication of WO2009109084A1 publication Critical patent/WO2009109084A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02—Details
    • H01L31/0236—Special surface textures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • 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

Definitions

  • the present invention belongs to the field of solar energy, and in particular to a solar cell chip protection structure.
  • Solar cells are a device that directly converts solar energy into electrical energy due to the special effects of photovoltaics. When the sun shines on the solar cell, it turns the sun's light energy into electricity and generates electricity. When a plurality of solar cells are connected in series or in parallel, it can be a matrix of solar cells with a large output power. Solar cells are a promising new energy source with three advantages of durability, cleanliness and flexibility. Solar cells have a long life. As long as sunlight is present, solar cells can be used for a longer period of time. Compared with thermal power generation and nuclear power generation, solar energy itself is an environmentally friendly green energy source that does not cause environmental pollution. Solar cells can be both large and medium. Large-scale power plants of up to one million kilowatts, as small as one solar battery for one household, which is unmatched by other power sources.
  • a main object of the present invention is to provide a solar cell chip protection structure which can prevent a PCB board outside the chip from being melted or broken due to excessive temperature rise, thereby effectively extending the life of the solar cell.
  • a secondary object of the present invention is to provide a solar cell chip protection structure, which can effectively improve the 'uniformity of light' on a solar cell, overcome the missing point of the concentrating solar cell, fully exert its advantages, and greatly improve solar energy. Effective utilization of the battery.
  • the solution of the present invention is: a solar cell chip protection structure, a concentrating mirror is disposed on the upper part of the battery chip, wherein: the condensing mirror is provided with a light transmitting area corresponding to the position of the battery chip, and The outer edge of the light transmitting area of the concentrating mirror is a reflective area.
  • the concentrating mirror is a flat glass.
  • the reflective zone is plated with a reflective film.
  • the reflective area is a reflective lens.
  • the reflective lens is coated with a reflective film.
  • Reflective devices are provided on the reflective area.
  • the light transmitting area is matte glass.
  • the light transmitting area is a curved lens.
  • the present invention divides the concentrating mirror on the battery chip into a light transmitting region and a reflective region, and the size of the light transmitting region corresponds to the size of the chip, so that the chip can effectively collect sunlight;
  • the concentrated light that is not needed is reflected or absorbed by the reflective area to avoid illuminating the PCB, causing the temperature rise to melt or rupture the PCB, thereby effectively extending the service life of the solar cell.
  • the matte treatment of the light-transmissive area or the use of an optical curved lens allows the light incident on the chip to be newly distributed through the diffuse reflection of the matte surface or the buckling of the curved lens, so that the light incident on the chip is uniformized. Distribution, improve the filling factor of solar cell chips, overcome the missing points of concentrating solar cells, give full play to its advantages, and greatly improve the effective utilization of solar cells.
  • Figure 1 is a plan view of Embodiment 1 of the present invention.
  • Figure 2 is a cross-sectional view showing a first embodiment of the present invention
  • Figure 3 is a plan view of Embodiment 2 of the present invention.
  • Figure 4 is a cross-sectional view showing a second embodiment of the present invention.
  • FIG. 5 is a partial enlarged view of FIG. 4;
  • Figure 6 is a plan view of Embodiment 3 of the present invention.
  • Figure 7 is a cross-sectional view showing a third embodiment of the present invention.
  • the solar cell chip protection structure of the present invention is in a solar cell chip. 2 is provided with a concentrating mirror 1 in the upper part, wherein: the condensing mirror 1 is provided with a light transmitting area 11 corresponding to the position of the battery chip 2, and the reflecting edge 12 is located at the outer edge of the light transmitting area 11 of the condensing mirror 1.
  • the size of the light-transmitting area 11 corresponds to the size of the battery chip 2, so that the battery chip 2 can effectively collect sunlight; and the concentrated light outside the solar chip 2 that is not needed is reflected or absorbed by the reflective area 12 to avoid illumination.
  • the temperature rise causes the PCB board to melt or rupture, thereby effectively extending the service life of the solar cell.
  • the condensing mirror 1 is a flat glass, and the area corresponding to the size of the battery chip 2 in the middle is the light transmitting area 11, and the reflective area 12 on the periphery of the light transmitting area 11 is shown in FIG.
  • the surface is plated with a reflective film or is provided with a retroreflective device on the reflective region 12.
  • the embodiment 2 of the present invention wherein the light-transmitting region 11 is a frosted glass which is subjected to matte treatment, and the arrangement of the light-transmitting region 11 is the same as that of the above-mentioned embodiment 1, and is not described herein.
  • the light-transmissive area 11 is configured to uniformly distribute the light incident on the battery chip 1.
  • the principle of uniformizing the light surface of the matte surface is as follows: Conventional concentrated light is caused by the optical lens to be deflected (ie, Surface normals have a specific distribution and orientation)
  • the direction of light propagation also tends to a specific small area and direction, which results in a higher intensity of light in a particular direction, and others are lower, forming a distinct intensity gradient, which is what we usually call uneven.
  • we introduce a matte surface because the surface of the matte surface has an uneven approximation 'R
  • the embodiment 3 of the present invention is provided, and the arrangement of the reflective region 12 is the same as that of the first embodiment, and the curved portion lens can be used.
  • the principle is the same as the above implementation.
  • the 'uniformity' of the light on the solar cell can also be achieved, and the efficiency of the solar cell can be improved.

Abstract

L'invention concerne une structure protectrice de cellules pour batterie solaire et comprend un miroir concentrateur au-dessus de la cellule de batterie, une partie de la structure à transmission dont la taille correspond à la cellule étant une région de transmission, tandis qu'au bord de la région de transmission du miroir concentrateur se trouve une région de réflexion; la région de transmission est constituée d'une vitre à surface mate ou d'une lentille à surface courbe. La taille de la région de transmission correspond exactement à la taille de la cellule, ce qui confère à la cellule la capacité de collecter efficacement le rayonnement solaire; de plus, le rayonnement inutilisé collecté à l'extérieur de la cellule solaire est réfléchi ou absorbé par la région de réflexion pour éviter de rayonner sur la carte à circuit imprimé et de provoquer ainsi un échauffement susceptible de faire fondre ou d'endommager la carte à circuit imprimé, ce qui permet de prolonger sensiblement la durée de vie utile de la batterie solaire; et le traitement de surface mat sur la région de transmission, ou le fait qu'elle soit constituée d'une lentille optique courbe, entraîne la redistribution de la lumière rayonnée dans la cellule par réflexion diffusée à travers la surface mate ou par réfraction à travers la lentille courbe, facilitant ainsi la répartition uniforme de la lumière rayonnée dans la cellule de manière à augmenter le facteur de remplissage de la cellule de batterie solaire, et évitant de ce fait une défaillance de la batterie solaire, ce qui accroît considérablement le rendement d'utilisation de la batterie solaire.
PCT/CN2008/070513 2008-03-05 2008-03-17 Structure protectrice de cellules pour batterie solaire WO2009109084A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB200810070720XA CN100541826C (zh) 2008-03-05 2008-03-05 太阳能电池芯片保护结构
CN200810070720.X 2008-03-05

Publications (1)

Publication Number Publication Date
WO2009109084A1 true WO2009109084A1 (fr) 2009-09-11

Family

ID=39933284

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/070513 WO2009109084A1 (fr) 2008-03-05 2008-03-17 Structure protectrice de cellules pour batterie solaire

Country Status (2)

Country Link
CN (1) CN100541826C (fr)
WO (1) WO2009109084A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3370263B1 (fr) * 2017-03-02 2019-12-25 Thales Cellule photovoltaïque équipée

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100541826C (zh) * 2008-03-05 2009-09-16 玉晶光电(厦门)有限公司 太阳能电池芯片保护结构
CN101777573B (zh) 2009-12-25 2012-01-11 友达光电(厦门)有限公司 太阳能发光装置
CN102487092A (zh) * 2010-12-03 2012-06-06 西安中科麦特电子技术设备有限公司 高倍聚光太阳能光伏模组

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0575797A1 (fr) * 1992-06-25 1993-12-29 Siemens Solar Industries International, Inc. Module photovoltaique à réflecteur spéculaire
US5389159A (en) * 1992-09-01 1995-02-14 Canon Kabushiki Kaisha Solar cell module and method for producing the same
JPH11298029A (ja) * 1998-04-14 1999-10-29 Sanyo Electric Co Ltd 太陽電池モジュール及び複層ガラスモジュール
JP2003101059A (ja) * 2001-09-27 2003-04-04 Sharp Corp 薄膜太陽電池
JP2004111453A (ja) * 2002-09-13 2004-04-08 Sharp Corp 太陽電池
CN1889277A (zh) * 2006-07-18 2007-01-03 侯国华 太阳能聚光电池模块
CN101241944A (zh) * 2008-03-05 2008-08-13 玉晶光电(厦门)有限公司 太阳能电池芯片保护结构

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0575797A1 (fr) * 1992-06-25 1993-12-29 Siemens Solar Industries International, Inc. Module photovoltaique à réflecteur spéculaire
US5389159A (en) * 1992-09-01 1995-02-14 Canon Kabushiki Kaisha Solar cell module and method for producing the same
JPH11298029A (ja) * 1998-04-14 1999-10-29 Sanyo Electric Co Ltd 太陽電池モジュール及び複層ガラスモジュール
JP2003101059A (ja) * 2001-09-27 2003-04-04 Sharp Corp 薄膜太陽電池
JP2004111453A (ja) * 2002-09-13 2004-04-08 Sharp Corp 太陽電池
CN1889277A (zh) * 2006-07-18 2007-01-03 侯国华 太阳能聚光电池模块
CN101241944A (zh) * 2008-03-05 2008-08-13 玉晶光电(厦门)有限公司 太阳能电池芯片保护结构

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3370263B1 (fr) * 2017-03-02 2019-12-25 Thales Cellule photovoltaïque équipée
US10644183B2 (en) 2017-03-02 2020-05-05 Thales Solar cell assembly

Also Published As

Publication number Publication date
CN101241944A (zh) 2008-08-13
CN100541826C (zh) 2009-09-16

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