WO2013121561A1 - Module de cellules solaires et son procédé de fabrication - Google Patents

Module de cellules solaires et son procédé de fabrication Download PDF

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Publication number
WO2013121561A1
WO2013121561A1 PCT/JP2012/053673 JP2012053673W WO2013121561A1 WO 2013121561 A1 WO2013121561 A1 WO 2013121561A1 JP 2012053673 W JP2012053673 W JP 2012053673W WO 2013121561 A1 WO2013121561 A1 WO 2013121561A1
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WO
WIPO (PCT)
Prior art keywords
solar cell
filler layer
cell module
region
module
Prior art date
Application number
PCT/JP2012/053673
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English (en)
Japanese (ja)
Inventor
俊行 佐久間
Original Assignee
三洋電機株式会社
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 三洋電機株式会社 filed Critical 三洋電機株式会社
Priority to JP2014500002A priority Critical patent/JP5923740B2/ja
Priority to PCT/JP2012/053673 priority patent/WO2013121561A1/fr
Publication of WO2013121561A1 publication Critical patent/WO2013121561A1/fr

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    • 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
    • H01L31/0547—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
    • 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
    • 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
    • H02S30/00—Structural details of PV modules other than those related to light conversion
    • H02S30/10—Frame structures
    • 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 module and a manufacturing method thereof.
  • Patent Document 1 describes a solar cell module including a module main body having a plurality of solar cells arranged in a filler and a frame attached to a peripheral portion of the module main body.
  • the main object of the present invention is to provide a solar cell module having improved output characteristics.
  • the solar cell module includes a module main body and a frame.
  • the module body includes a translucent member, a reflecting member, a filler layer, and a solar cell.
  • the filler layer is disposed between the translucent member and the reflective member.
  • the solar cell is arranged in the filler layer.
  • the frame is provided around the module body.
  • the frame has a recess. A portion of the module body where no solar cell is provided is inserted into the recess.
  • the filler layer has an inclined portion. The inclined portion is located in a region between the region where the solar cell is provided and the region inserted into the frame. The inclined portion is thinner from the region side where the solar cell is provided toward the frame body side.
  • the reflecting member is provided so as to cover the inclined portion.
  • a first resin sheet, a solar cell, a second resin sheet, and a reflective sheet are laminated in this order on a translucent member to produce a laminate.
  • a laminating process is performed in which the module body is manufactured by applying pressure while heating the laminated body in a state where the auxiliary member is disposed on at least a part of the area outside the area where the solar cell of the laminated body is provided.
  • a solar cell module including a module main body and a frame is obtained by inserting a portion of the module main body where the solar cell is not provided into the concave portion of the frame having the recess.
  • a solar cell module having improved output characteristics can be provided.
  • FIG. 1 is a schematic plan view of the solar cell module according to the first embodiment.
  • FIG. 2 is a schematic cross-sectional view taken along line II-II in FIG.
  • FIG. 3 is a schematic cross-sectional view of a solar cell module according to a reference example.
  • FIG. 4 is a schematic cross-sectional view for explaining the method for manufacturing the solar cell module according to the first embodiment.
  • FIG. 5 is a schematic cross-sectional view of a solar cell module according to the second embodiment.
  • FIG. 6 is a schematic cross-sectional view of a solar cell module according to the third embodiment.
  • the solar cell module 1 includes a module body 20 and a frame body 11.
  • the module body 20 includes a translucent member 23, a reflecting member 24, a filler layer 25, and at least one solar cell 22.
  • the translucent member 23 has a plate shape.
  • the translucent member 23 is a member that transmits at least part of light in a wavelength region that contributes to power generation of the solar cell 22.
  • the translucent member 23 also has a function as a protective member for the solar cell 22.
  • the translucent member 23 can be composed of, for example, a glass plate or a plastic plate.
  • the reflection member 24 is disposed so as to face the translucent member 23.
  • the reflecting member 24 is a member that reflects at least a part of light in a wavelength region that contributes to power generation of the solar cell 22.
  • the reflection member 24 is configured by a flexible sheet.
  • the reflection member 24 also has a function as a protection member for the solar cell 22.
  • the reflection member 24 can be formed of, for example, a resin sheet having a reflection layer made of aluminum, silver, or the like inside.
  • the filler layer 25 is disposed between the translucent member 23 and the reflecting member 24.
  • the solar cell 22 is sealed by the filler layer 25.
  • the filler layer 25 can be made of, for example, a resin such as ethylene / vinyl acetate copolymer (EVA), polyvinyl butyral (PVB), polyethylene (PE), polyurethane (PU), or the like.
  • the filler layer 25 includes a first filler layer 25a and a second filler layer 25b.
  • the first filler layer 25 a is disposed between the solar cell 22 and the translucent member 23.
  • the first filler layer 25 a transmits at least part of light in a wavelength region that contributes to power generation of the solar cell 22.
  • the first filler layer 25a preferably contains substantially no pigment or dye.
  • the second filler layer 25 b is disposed between the solar cell 22 and the reflecting member 24.
  • the second filler layer 25b is a colored filler layer containing at least one of a pigment and a dye.
  • the second filler layer 25b preferably includes white pigment powder made of, for example, titanium oxide.
  • the second filler layer 25 b reflects at least a part of light in a wavelength region that contributes to power generation of the solar cell 22.
  • the solar cell 22 is arranged in the filler layer 25. Specifically, a plurality of solar cells 22 are arranged in the filler layer 25. The plurality of solar cells 22 are electrically connected by the wiring material 14.
  • the kind of solar cell 22 is not particularly limited.
  • the solar cell 22 can be configured using various semiconductor materials such as a crystalline semiconductor and a thin film semiconductor.
  • the solar cell 22 has a first main surface 22a and a second main surface 22b.
  • the first main surface 22 a faces the translucent member 23.
  • the second main surface 22 b faces the reflecting member 24.
  • the solar cell 22 may have electrodes on both the first main surface 22a and the second main surface 22b. In that case, it is preferable that the electrode provided on the second main surface 22b has a larger area than the electrode provided on the first main surface 22a.
  • the solar cell 22 may be a back junction type solar cell having electrodes only on the second main surface 22b of the first and second main surfaces 22a and 22b.
  • the module body 20 has a first area 20a, a second area 20b, and a third area 20c.
  • the first region 20a is a region located in the center where the solar cell 22 is provided.
  • the second region 20b is located outside the first region 20a.
  • the third region 20c is located outside the second region 20b.
  • the solar cell 22 is not provided in the second region 20b and the third region 20c.
  • a frame 11 is provided around the module body 20. Specifically, the frame body 11 is arranged so as to surround the module main body 20.
  • the frame 11 has a recess 11a. A part of the area of the module body 20 where the solar cell 22 is not provided is inserted into the recess 11a.
  • the third region 20c of the module body 20 is inserted into the recess 11a.
  • the first region 20 a and the second region 20 b are located outside the frame body 11.
  • the width of the second region 20b can be, for example, about 0.5 mm to 10 mm.
  • the width of the third region 20c can be, for example, about 1 mm to 15 mm.
  • the recessed part 11a is comprised by the 1st plate-shaped part 11b, the 2nd plate-shaped part 11c, and the connection part 11d.
  • the first plate-like portion 11 b is located on the light transmissive member 23 side of the module body 20.
  • the second plate-like portion 11 c is located on the reflection member 24 side of the module body 20.
  • the third region 20c of the module body 20 is sandwiched between the second plate-like portion 11c and the first plate-like portion 11b.
  • the connecting part 11d connects the first plate-like part 11b and the second plate-like part 11c.
  • the constituent material of the frame 11 is not particularly limited as long as it can provide the frame 11 with sufficient strength to hold the module body 20.
  • the frame 11 can be made of, for example, a metal such as aluminum or iron, an alloy such as stainless steel, or a resin.
  • the water stop material 13 can be composed of, for example, silicone resin, butyl rubber, or the like.
  • the filler layer 25 is provided in the first region 20a where the solar cell 22 is provided and at least a part of the second region 20b. For this reason, the filler layer 25 is provided outside the frame body 11 and is not provided inside the frame body 11. At least a part of the portion of the filler layer 25 located in the second region 20b constitutes an inclined portion 25A.
  • the inclined portion 25A is thinner from the first region 20a side toward the frame body 11 side. For this reason, the surface of the inclined portion 25A opposite to the translucent member 23 is in relation to the surface of the translucent member 23 on the solar cell 22 side so that the normal direction is directed to the first region 20a side. Inclined. Note that the surface of the inclined portion 25A on the side opposite to the translucent member 23 may be flat or curved.
  • the reflecting member 24 is provided so as to cover substantially the entire filler layer 25 including the inclined portion 25A. Specifically, the reflection member 24 is provided on substantially the entire module body 20. For this reason, the reflecting member 24 reaches the recess 11a. The reflection member 24 reaches the end of the translucent member 23. In the third region 20 c, the reflecting member 24 faces the translucent member 23 without using the filler layer 25.
  • the filler layer 125 in the frame body 111 as in the solar cell module 100 shown in FIG.
  • the filler layer 125 has a substantially uniform thickness in the second region 120b.
  • the light L100 incident perpendicularly to the second region 120b does not enter the solar cell 122. Therefore, the light L100 does not contribute to power generation.
  • the filler layer 25 is provided with the inclined portion 25A that becomes thinner from the first region 20a side toward the frame body 11 side, and the reflection member 24 covers the inclined portion 25A. It is provided as follows. For this reason, the portion located on the inclined portion 25A of the reflecting member 24 is inclined such that the normal direction faces the first region 20a side. Therefore, the light L1 incident perpendicularly to the second region 20b is reflected by the reflecting member 24 toward the first region 20a where the solar cell 22 is provided. Therefore, the light L1 can also enter the solar cell 22 and contribute to power generation. That is, in the solar cell module 1, the utilization efficiency of the light incident on the second region 20b can be increased. Therefore, improved photoelectric conversion efficiency can be realized.
  • the reflecting member 24 reaches the recess 11a. In this case, peeling of the reflecting member 24 from the translucent member 23 can be suppressed. Furthermore, even if the reflecting member 24 and the filler layer 25 are larger than the translucent member 23, the above-described structure can be obtained by trimming, so that the manufacturing yield can be increased.
  • the colored second filler layer 25b is also provided on the inclined portion 25A. Furthermore, the second filler layer 25b is provided on substantially the entire inclined portion 25A. For this reason, the incident efficiency to the solar cell 22 of the light which injected into the 2nd area
  • the filler layer 25b is provided outside the frame 11, and the filler layer 25a extends into the recess 11a. In this case, the size of the filler layer 25b can be reduced, which contributes to cost reduction of the member.
  • the first resin sheet 31a for constituting the first filler layer 25a, the solar cell 22, and the second resin for constituting the second filler layer 25b are laminated in this order. Thereby, the laminated body 30 is produced.
  • the second filler layer 25b is composed of a colored filler layer, a colored resin sheet containing a pigment or a dye is used as the second resin sheet 31b.
  • the auxiliary member 40 is disposed on at least a part of the region outside the region where the solar cells 22 of the layered body 30 are provided.
  • a laminating process is performed in which the layered body 30 is pressurized while heating.
  • a higher press thickness is applied to the portion where the auxiliary member 40 is disposed than to other portions.
  • the portion where the auxiliary member 40 is disposed is pressurized so as to be thinner than the other portions.
  • the inclined portion 25A is formed. Therefore, the module main body 20 can be suitably manufactured by the method of the present embodiment.
  • the inclined portion 25A it is preferable to use a resin sheet having a smaller area than the first resin sheet 31a as the second resin sheet 31b.
  • the colored second resin sheet 31b can also be prevented from protruding from the reflecting member 24.
  • the temperature of the auxiliary member 40 is more preferably increased by 10 ° C. or more, more preferably 20 ° C. or more, than the temperature of the press material that pressurizes the laminate 30.
  • the solar cell module 1 can be completed by inserting the third region 20 c of the module main body 20 into the recess 11 a of the frame body 11 and fixing it with the water stop material 13.
  • the reflecting member 24 In the solar cell module 1, the example in which the reflecting member 24 reaches the end of the module main body 20 has been described. However, as in the solar cell module 2 illustrated in FIG. 5, the reflecting member 24 extends to the end of the module main body 20. It does not have to arrive. That is, the reflecting member 24 may be provided in a smaller area than the translucent member 23. In the solar cell module 2 as well, like the solar cell module 1, improved photoelectric conversion efficiency can be realized. Moreover, in the solar cell module 2, it contributes to cost reduction by making the size of the reflecting member 24 and the filler layer 25 small.
  • the reflecting member 24 is provided outside the frame body 11 and is not provided inside the frame body 11.
  • the solar cell module 3 like the solar cell modules 1 and 2, improved photoelectric conversion efficiency can be realized.
  • the solar cell module 3 it contributes to cost reduction by making the size of the reflection member 24 and the filler layer 25 small.
  • impurities such as water accumulated in the recess 11a can be prevented from entering the inside of the module.
  • the solar cell module may have one solar cell.
  • the frame may be provided only outside a part of the peripheral edge of the module body.

Abstract

L'invention concerne un module de cellules solaires ayant des propriétés de sortie améliorées. Un module de cellules solaires (1) comprend un corps de module (20) et un cadre (11) disposé autour du corps de module (20). Le corps de module (20) a un élément translucide (23), un élément réfléchissant (24), une couche de remplissage (25) disposée entre l'élément translucide (23) et l'élément réfléchissant (24), et des cellules solaires (22) disposées dans la couche de remplissage (25). Le cadre (11) a un renfoncement (11a) dans lequel une section du corps de module (20) ne comprenant pas de cellules solaires (22) est engagée. La couche de remplissage (25) a une section inclinée (25A) positionnée dans une région (20b) entre une région (20a) dans laquelle les cellules solaires (22) sont disposées et une région (20c) qui est engagée dans le cadre (11). La section inclinée (25A) devient plus mince dans une direction orientée vers le cadre (11) à partir de la région (20a) dans laquelle les cellules solaires (22) sont disposées. L'élément réfléchissant (24) est positionné de façon à couvrir la section inclinée (25A).
PCT/JP2012/053673 2012-02-16 2012-02-16 Module de cellules solaires et son procédé de fabrication WO2013121561A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2014500002A JP5923740B2 (ja) 2012-02-16 2012-02-16 太陽電池モジュール及びその製造方法
PCT/JP2012/053673 WO2013121561A1 (fr) 2012-02-16 2012-02-16 Module de cellules solaires et son procédé de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/053673 WO2013121561A1 (fr) 2012-02-16 2012-02-16 Module de cellules solaires et son procédé de fabrication

Publications (1)

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WO2013121561A1 true WO2013121561A1 (fr) 2013-08-22

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JP (1) JP5923740B2 (fr)
WO (1) WO2013121561A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62101247U (fr) * 1985-08-27 1987-06-27
JPS6454345U (fr) * 1987-09-29 1989-04-04
JP2001127331A (ja) * 1999-10-29 2001-05-11 Sanyo Electric Co Ltd 太陽電池モジュール
JP2008235603A (ja) * 2007-03-20 2008-10-02 Sanyo Electric Co Ltd 太陽電池モジュール

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62128652U (fr) * 1986-02-07 1987-08-14
JP2008147382A (ja) * 2006-12-08 2008-06-26 Honda Motor Co Ltd 太陽電池モジュール及びその製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62101247U (fr) * 1985-08-27 1987-06-27
JPS6454345U (fr) * 1987-09-29 1989-04-04
JP2001127331A (ja) * 1999-10-29 2001-05-11 Sanyo Electric Co Ltd 太陽電池モジュール
JP2008235603A (ja) * 2007-03-20 2008-10-02 Sanyo Electric Co Ltd 太陽電池モジュール

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Publication number Publication date
JP5923740B2 (ja) 2016-05-25
JPWO2013121561A1 (ja) 2015-05-11

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