WO2022168473A1 - Roll screen device - Google Patents

Roll screen device Download PDF

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Publication number
WO2022168473A1
WO2022168473A1 PCT/JP2021/047226 JP2021047226W WO2022168473A1 WO 2022168473 A1 WO2022168473 A1 WO 2022168473A1 JP 2021047226 W JP2021047226 W JP 2021047226W WO 2022168473 A1 WO2022168473 A1 WO 2022168473A1
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WO
WIPO (PCT)
Prior art keywords
light
screen
receiving surface
roll screen
screen device
Prior art date
Application number
PCT/JP2021/047226
Other languages
French (fr)
Japanese (ja)
Inventor
久史 石井
Original Assignee
株式会社Lixil
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Publication of WO2022168473A1 publication Critical patent/WO2022168473A1/en

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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding devices
    • 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
    • H02S30/20—Collapsible or foldable PV modules

Definitions

  • the present invention relates to a roll screen device equipped with solar cells.
  • a sealing layer is formed on the light-receiving surface of the solar cell, and a coating layer is formed thereon for surface protection.
  • the provision of the coating layer may reduce the power generation efficiency.
  • the present disclosure has been made in view of such problems, and its purpose is to provide a technique for improving power generation efficiency in a roll screen device equipped with solar cells.
  • a roll screen device includes a sheet-shaped screen portion and a holding portion that holds the screen portion.
  • the screen portion includes a solar cell, a light-receiving surface-side sealing layer formed on the light-receiving surface of the solar cell, a light-receiving surface-side coating layer formed on the light-receiving surface-side sealing layer, and a light-receiving surface-side coating. and a transparent hole formed in the layer.
  • FIG. 1 is a schematic front view of a roll screen device according to a first embodiment
  • FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic horizontal sectional view of the roll screen apparatus which concerns on 1st Embodiment.
  • FIGS. 3(a) to 3(d) are diagrams for explaining types of transparent holes. It is a figure for demonstrating the modification of a roll screen apparatus. It is a schematic front view of the roll screen apparatus which concerns on a modification. It is a figure which shows the circumference
  • FIG. 1 is a schematic front view of a roll screen device 10 according to the first embodiment.
  • the roll screen device 10 is used by being attached to an opening of a building.
  • the roll screen device 10 includes a screen portion 12 , a holding portion 14 that suspends and holds the screen portion 12 , and a pair of guide rails 16 and 17 that guide the elevation of the screen portion 12 .
  • the screen part 12 is configured as a flexible rectangular sheet body.
  • the screen portion 12 has a longitudinal upper end portion connected to a winding portion 19 in the holding portion 14 and a bottom rail 18 provided at a lower end portion.
  • the bottom rail 18 exerts a force in a direction to pull down the screen portion 12, and exerts a function of applying tension to the screen portion 12 to enhance flatness.
  • the screen part 12 incorporates a plurality of solar cells 20 .
  • a plurality of rectangular solar cells 20 are arranged side by side in the vertical direction (height direction), but the arrangement method is not particularly limited, and any arrangement is possible.
  • a plurality of photovoltaic cells 20 are connected in series with each other.
  • the solar cell 20 is configured to utilize the photovoltaic effect and convert light energy into electrical power.
  • the layer structure of the screen portion 12 will be described later.
  • the holding section 14 includes a winding section 19 for winding the screen section 12 and a case 15 for housing the winding section 19 .
  • a known method such as a pull cord method or a chain method can be adopted for the lifting operation of the screen portion 12 .
  • an electric motor may be provided in the case 15 to make it electric.
  • the guide rails 16 and 17 are arranged at the left and right ends of the screen portion 12 and are configured to sandwich the ends of the screen portion 12 .
  • light leakage and heat leakage from the lateral sides of the screen portion 12 can be prevented, so that light shielding performance, heat shielding performance and heat insulating performance can be improved.
  • an effect of suppressing wrinkles of the screen portion 12 can be expected.
  • the screen part 12 containing the solar cells 20 has the property that wrinkles and uneven surfaces are more likely to occur than a normal screen made of fabric.
  • wrinkles and uneven surfaces of the screen portion 12 can be reduced.
  • the gap between the guide rail and roll screen may be closed with mohair.
  • FIG. 2 is a schematic horizontal sectional view of the roll screen device 10 according to the first embodiment.
  • the screen part 12 includes a solar cell 20, a light-receiving surface-side sealing layer 24 formed on a light-receiving surface (also called a power generation surface or surface) 20a of the solar cell 20, and a light-receiving surface 20a of the solar cell 20.
  • the roll screen device 10 is attached to the opening of the building so that the light receiving surface of the solar cell 20 faces the outdoor side and the back surface of the solar cell 20 faces the indoor side.
  • the thickness of the screen portion 12 may be, for example, 0.5 mm to 2.0 mm.
  • the solar cell 20 includes, for example, a polyimide substrate 21 , a thin film silicon 22 formed on the polyimide substrate 21 , and a transparent conductive film (ITO) 23 formed on the thin film silicon 22 .
  • the solar cell is not limited to thin-film silicon, but may be organic thin-film, dye-sensitized, perovskite, CIGS, CIS, tandem structures thereof, or the like.
  • the light-receiving surface-side sealing layer 24 is provided so as to cover the light-receiving surface 20 a of the solar cell 20 . Further, the back-side sealing layer 26 is provided so as to cover the back surface 20 b of the solar cell 20 .
  • An olefinic elastomer (TPO) can be used as the material of the sealing layer.
  • the back side covering layer 30 is provided so as to cover the back side sealing layer 26 .
  • the back side coating layer 30 may be formed of fibers such as polypropylene, polyethylene, polyester, or plastics (synthetic resin).
  • a colored and opaque resin may be used to impart a light-shielding property to the back side coating layer 30 .
  • a separate light-shielding layer may be provided on the back side covering layer 30 .
  • the light-receiving-surface-side covering layer 28 is provided so as to cover the light-receiving-surface-side sealing layer 24 .
  • the light-receiving surface side coating layer 28 may be made of a transparent or translucent resin such as ETFE (Ethylene Tetra Fluoro Ethylene).
  • ETFE Ethylene Tetra Fluoro Ethylene
  • the light-receiving surface side coating layer 28 may be formed of a colored resin for the purpose of improving the design.
  • a plurality of light-transmitting holes 32 are formed in the light-receiving surface side coating layer 28 .
  • the translucent holes 32 may be arranged regularly or randomly.
  • the diameter of the transparent hole 32 may be 0.1 mm to 20 mm.
  • the ratio of the light-transmitting holes 32 to the total area of the light-receiving side coating layer 28 may be less than 1% to less than 100%, preferably 1% to 99%, more preferably 5% to 80%. It can be.
  • FIGS. 3(a) to 3(d) are diagrams for explaining the types of the translucent holes 32.
  • the plurality of light-transmitting holes 32 formed in the light-receiving surface side coating layer 28 may be circular or polygonal holes when viewed from the front, as shown in FIG. 3(a).
  • the light-transmitting hole 32 may be one large hole provided in the central portion of the light-receiving surface side coating layer 28, as shown in FIG. 3(b).
  • a single large hole does not have to be a completely enclosed hole, and may be a hole with a missing top end as shown in FIG. It may be a hole with a missing lower end.
  • the light-transmitting holes 32 may be through-holes penetrating through the light-receiving surface side coating layer 28 in the thickness direction.
  • Such through-holes may be formed in the material layer by a physical or chemical method after a material for forming the light-receiving-surface-side covering layer 28 is applied all over the light-receiving-surface-side sealing layer 24 .
  • the through-holes are formed by curing a portion of the light-receiving surface-side sealing layer 24 where the through-holes are to be formed with a tape or the like, applying a material for forming the light-receiving surface-side coating layer 28, and then removing the curing. good too.
  • the power generation efficiency decreases. Even if the coating layer is transparent or translucent, the power generation efficiency is slightly lowered, and if the coating layer is colored, the power generation efficiency is lowered to a greater extent.
  • the power generation efficiency can be improved. Especially when the light-receiving surface side coating layer 28 is colored, the power generation efficiency can be greatly improved.
  • the light-transmitting hole 32 is a through hole, but the light-transmitting hole 32 is not limited to being a through hole, and may have higher light transmittance than the surrounding portion.
  • the translucent hole 32 may be formed by providing a transparent hole-like portion in the non-transparent light-receiving surface side coating layer 28 . In this case also, sunlight can be taken into the solar cell 20 through the transparent hole-shaped portions, so that the power generation efficiency can be improved compared to the case where the entire surface is non-transparent.
  • the left and right ends of the screen portion 12 are sandwiched between the guide rails 16 and 17 .
  • Solar cells 20 are not formed at the ends of screen portion 12 sandwiched by guide rails 16 and 17. As shown in FIG.
  • the roll screen device 10 according to the present embodiment, it is possible to both improve power generation efficiency and ensure sliding resistance.
  • FIG. 4 is a diagram for explaining a modification of the roll screen device.
  • a dummy thin film silicon 27 and a dummy transparent electrode film 29 are formed at the ends of the screen portion 12 sandwiched between the guide rails 16 and 17.
  • the dummy thin film silicon 27 and the dummy transparent electrode film 29 are not provided with extraction electrodes. That is, the portion where dummy thin film silicon 27 and dummy transparent electrode film 29 are formed serves as dummy solar cell portion 51 that does not contribute to power generation.
  • the portion where the thin film silicon 22 and the transparent electrode film 23 are formed inside the dummy solar cell portion 51 in the plane of the screen portion 12 is provided with an extraction electrode, and the solar cell portion that contributes to power generation. 50.
  • the design can be unified with the solar cell portion 50.
  • FIG. 5 is a schematic front view of a roll screen device 110 according to a modification.
  • FIG. 6 is a diagram showing the periphery of the winding unit 19 of the roll screen device 110 according to the modification.
  • FIG. 7 is a diagram showing the periphery of the bottom rail 18 of the roll screen device 110 according to the modification.
  • the dummy solar cell section 51 is provided at the end of the screen section 12 sandwiched between the guide rails 16 and 17. Further, in the roll screen device 110, as shown in FIG. 6, a dummy solar cell section 52 is also provided at the upper end portion of the screen section 12 fixed to the winding section 19. As shown in FIG. Furthermore, in the roll screen device 110, as shown in FIG. 7, a dummy solar cell section 52 is also provided at a portion fixed to the bottom rail 18 at the lower end of the screen section 12. As shown in FIG.
  • the roll screen device 10 according to this embodiment can also be used as a projection screen by projecting an image onto the back side coating layer 30 . That is, according to the roll screen device 10 according to the present embodiment, light shielding, power generation, projection, heat shielding and heat insulation can be realized at the same time.
  • FIG. 8 is a schematic horizontal sectional view of a roll screen device 40 according to the second embodiment.
  • a roll screen device 40 according to the second embodiment differs from the roll screen device 10 according to the first embodiment in the configuration of the light-receiving surface side coating layer 28 .
  • the portion 28c of the light-receiving surface side coating layer 28 covering the solar cell 20 slides on the guide rails 16 and 17. It is formed thinner than the end portions 28a and 28b of the light-receiving surface side covering layer 28 which moves.
  • the thickness of the portion 28c of the light-receiving side covering layer 28 covering the solar cell 20 may be, for example, 0.025 mm to 0.25 mm.
  • the thickness of the end portions 28a, 28b of the light-receiving side coating layer 28 sliding on the guide rails 16, 17 may be, for example, 0.5 mm to 1.5 mm.
  • the end portions 28a, 28b of the light-receiving surface side coating layer 28 that slide on the guide rails 16, 17 are made thick, so that sliding resistance can be ensured.
  • the roll screen device 40 according to the present embodiment can also improve power generation efficiency and ensure sliding resistance.
  • the present invention can be used for roll screen devices equipped with solar cells.
  • 10, 40, 110 roll screen device 12 screen part, 14 holding part, 15 case, 16 guide rail, 20 solar battery cell, 21 polyimide substrate, 22 thin film silicon, 24 light receiving side sealing layer, 26 back side sealing Layer, 28 Light-receiving side coating layer, 30 Back side coating layer, 32 Translucent hole, 50 Solar cell part, 51, 52, 53 Dummy solar cell part.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
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Abstract

A roll screen device 10 comprises: a screen part 12 formed like a sheet; and a holding part that holds the screen part 12. The screen part 12 is provided with a solar battery cell 20, a light reception-side sealing layer 24 formed on a light reception surface 20a of the solar battery cell 20, a light reception-side covering layer 28 formed on the light reception-side sealing layer 24, and light transmission holes 32 formed in the light reception-side covering layer 28.

Description

ロールスクリーン装置roll screen device
　本発明は、太陽電池セルを備えたロールスクリーン装置に関する。 The present invention relates to a roll screen device equipped with solar cells.
　従来、スクリーン部分に太陽電池セルを設けたロールスクリーン装置が知られている（例えば特許文献１参照）。 Conventionally, there is known a roll screen device in which solar cells are provided in the screen portion (see Patent Document 1, for example).
特開２０１１－１７９１９３号公報JP 2011-179193 A
　上記のようなロールスクリーン装置では、太陽電池セルの受光面上に封止層を形成し、さらにその上に表面保護のための被覆層を形成している。しかしながら、被覆層を設けたことにより、発電効率が低下する可能性がある。 In the roll screen device as described above, a sealing layer is formed on the light-receiving surface of the solar cell, and a coating layer is formed thereon for surface protection. However, the provision of the coating layer may reduce the power generation efficiency.
　本開示は、このような課題に鑑みてなされ、その目的は、太陽電池セルを備えたロールスクリーン装置において、発電効率を向上する技術を提供することにある。 The present disclosure has been made in view of such problems, and its purpose is to provide a technique for improving power generation efficiency in a roll screen device equipped with solar cells.
　上記課題を解決するために、本開示のある態様のロールスクリーン装置は、シート状に構成されるスクリーン部と、スクリーン部を保持する保持部とを備える。スクリーン部は、太陽電池セルと、太陽電池セルの受光面上に形成される受光面側封止層と、受光面側封止層上に形成される受光面側被覆層と、受光面側被覆層に形成される透光孔と、を備える。 In order to solve the above problems, a roll screen device according to one aspect of the present disclosure includes a sheet-shaped screen portion and a holding portion that holds the screen portion. The screen portion includes a solar cell, a light-receiving surface-side sealing layer formed on the light-receiving surface of the solar cell, a light-receiving surface-side coating layer formed on the light-receiving surface-side sealing layer, and a light-receiving surface-side coating. and a transparent hole formed in the layer.
第１実施形態に係るロールスクリーン装置の概略正面図である。1 is a schematic front view of a roll screen device according to a first embodiment; FIG. 第１実施形態に係るロールスクリーン装置の概略水平断面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic horizontal sectional view of the roll screen apparatus which concerns on 1st Embodiment. 図３（ａ）～図３（ｄ）は、透光孔の種類を説明するための図である。FIGS. 3(a) to 3(d) are diagrams for explaining types of transparent holes. ロールスクリーン装置の変形例を説明するための図である。It is a figure for demonstrating the modification of a roll screen apparatus. 変形例に係るロールスクリーン装置の概略正面図である。It is a schematic front view of the roll screen apparatus which concerns on a modification. 変形例に係るロールスクリーン装置の巻取部の周辺を示す図である。It is a figure which shows the circumference|surroundings of the winding part of the roll screen apparatus which concerns on a modification. 変形例に係るロールスクリーン装置のボトムレールの周辺を示す図である。It is a figure which shows the circumference|surroundings of the bottom rail of the roll screen apparatus which concerns on a modification. 第２実施形態に係るロールスクリーン装置の概略水平断面図である。It is a schematic horizontal sectional view of the roll screen apparatus which concerns on 2nd Embodiment.
　以下、本発明を好適な実施の形態をもとに図面を参照しながら説明する。各図面に示される同一または同等の構成要素、部材には、同一の符号を付するものとし、適宜重複した説明は省略する。また、各図面における部材の寸法は、理解を容易にするために適宜拡大、縮小して示される。また、各図面において実施の形態を説明する上で重要ではない部材の一部は省略して表示する。 Hereinafter, the present invention will be described based on preferred embodiments with reference to the drawings. The same or equivalent constituent elements and members shown in each drawing are denoted by the same reference numerals, and duplication of description will be omitted as appropriate. In addition, the dimensions of the members in each drawing are appropriately enlarged or reduced for easy understanding. Also, in each drawing, some of the members that are not important for explaining the embodiments are omitted.
（第１実施形態）
　図１は、第１実施形態に係るロールスクリーン装置１０の概略正面図である。ロールスクリーン装置１０は、建物の開口部に取り付けて使用される。 (First embodiment)
FIG. 1 is a schematic front view of a roll screen device 10 according to the first embodiment. The roll screen device 10 is used by being attached to an opening of a building.
　ロールスクリーン装置１０は、スクリーン部１２と、スクリーン部１２を吊り下げ保持する保持部１４と、スクリーン部１２の昇降を案内する一対のガイドレール１６，１７とを備える。 The roll screen device 10 includes a screen portion 12 , a holding portion 14 that suspends and holds the screen portion 12 , and a pair of guide rails 16 and 17 that guide the elevation of the screen portion 12 .
　スクリーン部１２は、可撓性を有する長方形状のシート体として構成される。このスクリーン部１２は、その長手方向の上端部が保持部１４内の巻取部１９に連結され、下端部にボトムレール１８が設けられている。ボトムレール１８は、スクリーン部１２を下方向に引き降ろす方向に力を加えると共に、スクリーン部１２に張力を付与して平面性を高める作用を及ぼす。 The screen part 12 is configured as a flexible rectangular sheet body. The screen portion 12 has a longitudinal upper end portion connected to a winding portion 19 in the holding portion 14 and a bottom rail 18 provided at a lower end portion. The bottom rail 18 exerts a force in a direction to pull down the screen portion 12, and exerts a function of applying tension to the screen portion 12 to enhance flatness.
　スクリーン部１２は、複数の太陽電池セル２０を内蔵している。図１に示す例では、複数の長方形状の太陽電池セル２０が上下方向（高さ方向）に並べて配列されているが、配列方法については特に限定されず、自由な配列が可能である。複数の太陽電池セル２０は、互いに直列に接続される。太陽電池セル２０は光起電力効果を利用し、光エネルギーを電力に変換するように構成される。スクリーン部１２の層構成については後述する。 The screen part 12 incorporates a plurality of solar cells 20 . In the example shown in FIG. 1, a plurality of rectangular solar cells 20 are arranged side by side in the vertical direction (height direction), but the arrangement method is not particularly limited, and any arrangement is possible. A plurality of photovoltaic cells 20 are connected in series with each other. The solar cell 20 is configured to utilize the photovoltaic effect and convert light energy into electrical power. The layer structure of the screen portion 12 will be described later.
　保持部１４は、スクリーン部１２を巻き取るための巻取部１９と、巻取部１９を収納するケース１５とを備える。スクリーン部１２の昇降操作は、プルコード式、チェーン式などの既知の方式を採用することができる。あるいは、ケース１５内に電動モータを設け、電動式としてもよい。 The holding section 14 includes a winding section 19 for winding the screen section 12 and a case 15 for housing the winding section 19 . A known method such as a pull cord method or a chain method can be adopted for the lifting operation of the screen portion 12 . Alternatively, an electric motor may be provided in the case 15 to make it electric.
　ガイドレール１６，１７は、スクリーン部１２の左右両端に配置されており、スクリーン部１２の端部を挟み込むように構成されている。ガイドレール１６，１７を設けることにより、スクリーン部１２の横側からの光漏れおよび熱漏れを防ぐことができるので、遮光性能、遮熱性能および断熱性能を向上することができる。また、スクリーン部１２の皺を抑制する効果も期待できる。 The guide rails 16 and 17 are arranged at the left and right ends of the screen portion 12 and are configured to sandwich the ends of the screen portion 12 . By providing the guide rails 16 and 17, light leakage and heat leakage from the lateral sides of the screen portion 12 can be prevented, so that light shielding performance, heat shielding performance and heat insulating performance can be improved. In addition, an effect of suppressing wrinkles of the screen portion 12 can be expected.
　また、太陽電池セル２０を内蔵したスクリーン部１２は、通常のファブリック製のスクリーンと比較して皺や凹凸面が発生しやすいという性質がある。ガイドレール１６，１７を設けることにより、スクリーン部１２の皺や凹凸面を低減することができる。ガイドレールとロールスクリーンの隙間はモヘヤなどで塞いでもよい。 In addition, the screen part 12 containing the solar cells 20 has the property that wrinkles and uneven surfaces are more likely to occur than a normal screen made of fabric. By providing the guide rails 16 and 17, wrinkles and uneven surfaces of the screen portion 12 can be reduced. The gap between the guide rail and roll screen may be closed with mohair.
　図２は、第１実施形態に係るロールスクリーン装置１０の概略水平断面図である。スクリーン部１２は、太陽電池セル２０と、太陽電池セル２０の受光面（発電面、表面とも呼ばれる）２０ａ上に形成される受光面側封止層２４と、太陽電池セル２０の受光面２０ａ上に形成される受光面側封止層２４と、太陽電池セル２０の裏面（非受光面とも呼ばれる）２０ｂ上に形成される裏面側封止層２６と、受光面側封止層２４上に形成される受光面側被覆層２８と、裏面側封止層２６上に形成される裏面側被覆層３０と、を備える。ロールスクリーン装置１０は、太陽電池セル２０の受光面が室外側を向き、太陽電池セル２０の裏面が室内側を向くように建物の開口部に取り付けられる。スクリーン部１２の厚さは、例えば０．５ｍｍ～２．０ｍｍであってよい。 FIG. 2 is a schematic horizontal sectional view of the roll screen device 10 according to the first embodiment. The screen part 12 includes a solar cell 20, a light-receiving surface-side sealing layer 24 formed on a light-receiving surface (also called a power generation surface or surface) 20a of the solar cell 20, and a light-receiving surface 20a of the solar cell 20. a light-receiving surface-side sealing layer 24 formed on the back surface side sealing layer 26 formed on the back surface (also referred to as a non-light-receiving surface) 20b of the solar cell 20; and a back side coating layer 30 formed on the back side sealing layer 26 . The roll screen device 10 is attached to the opening of the building so that the light receiving surface of the solar cell 20 faces the outdoor side and the back surface of the solar cell 20 faces the indoor side. The thickness of the screen portion 12 may be, for example, 0.5 mm to 2.0 mm.
　太陽電池セル２０は、例えばポリイミド基板２１と、ポリイミド基板２１上に形成される例えば薄膜シリコン２２と、薄膜シリコン２２上に形成される透明導電膜（ＩＴＯ）２３とを備える。太陽電池セルは、薄膜シリコンに限定されず、有機薄膜、色素増感、ペロブスカイト、CIGS、CIS、これらのタンデム構造などでもよい。 The solar cell 20 includes, for example, a polyimide substrate 21 , a thin film silicon 22 formed on the polyimide substrate 21 , and a transparent conductive film (ITO) 23 formed on the thin film silicon 22 . The solar cell is not limited to thin-film silicon, but may be organic thin-film, dye-sensitized, perovskite, CIGS, CIS, tandem structures thereof, or the like.
　受光面側封止層２４は、太陽電池セル２０の受光面２０ａを覆うように設けられている。また、裏面側封止層２６は、太陽電池セル２０の裏面２０ｂを覆うように設けられている。封止層の材料としては、オレフィン系エラストマー（ＴＰＯ）を用いることができる。 The light-receiving surface-side sealing layer 24 is provided so as to cover the light-receiving surface 20 a of the solar cell 20 . Further, the back-side sealing layer 26 is provided so as to cover the back surface 20 b of the solar cell 20 . An olefinic elastomer (TPO) can be used as the material of the sealing layer.
　裏面側被覆層３０は、裏面側封止層２６を覆うように設けられている。裏面側被覆層３０は、ポリプロピレン、ポリエチレン、ポリエステルなどの繊維類やプラスチック類（合成樹脂）で形成されてよい。裏面側被覆層３０に遮光性を持たせるために、例えば有色で不透明な樹脂を用いてもよい。あるいは、裏面側被覆層３０上に別途遮光層が設けられてもよい。 The back side covering layer 30 is provided so as to cover the back side sealing layer 26 . The back side coating layer 30 may be formed of fibers such as polypropylene, polyethylene, polyester, or plastics (synthetic resin). For example, a colored and opaque resin may be used to impart a light-shielding property to the back side coating layer 30 . Alternatively, a separate light-shielding layer may be provided on the back side covering layer 30 .
　受光面側被覆層２８は、受光面側封止層２４を覆うように設けられている。受光面側被覆層２８は、ＥＴＦＥ（Ethylene Tetra Fluoro Ethylene）などの透明または半透明な樹脂で形成されてよい。あるいは受光面側被覆層２８は、デザイン性の向上等を目的として、有色の樹脂で形成されてもよい。 The light-receiving-surface-side covering layer 28 is provided so as to cover the light-receiving-surface-side sealing layer 24 . The light-receiving surface side coating layer 28 may be made of a transparent or translucent resin such as ETFE (Ethylene Tetra Fluoro Ethylene). Alternatively, the light-receiving surface side coating layer 28 may be formed of a colored resin for the purpose of improving the design.
　本第１実施形態に係るロールスクリーン装置１０では、受光面側被覆層２８に複数の透光孔３２が形成されている。透光孔３２は、規則的に配置されてもよいし、ランダムに配置されてもよい。透光孔３２の直径は、０．１ｍｍ～２０ｍｍであってよい。受光面側被覆層２８の全面積に対して透光孔３２が占める割合は、１％未満～１００％未満であってよく、好ましくは１％～９９％、より好ましくは５％～８０％であってよい。 In the roll screen device 10 according to the first embodiment, a plurality of light-transmitting holes 32 are formed in the light-receiving surface side coating layer 28 . The translucent holes 32 may be arranged regularly or randomly. The diameter of the transparent hole 32 may be 0.1 mm to 20 mm. The ratio of the light-transmitting holes 32 to the total area of the light-receiving side coating layer 28 may be less than 1% to less than 100%, preferably 1% to 99%, more preferably 5% to 80%. It can be.
　図３（ａ）～図３（ｄ）は、透光孔３２の種類を説明するための図である。受光面側被覆層２８に形成される複数の透光孔３２は、図３（ａ）に示すように、正面視で円形や多角形の孔であってよい。あるいは、透光孔３２は、図３（ｂ）に示すように、一つの大きな孔が受光面側被覆層２８の中央部に設けられたものであってもよい。一つの大きな孔は、完全に周囲を囲われた孔である必要はなく、図（ｃ）に示すように上端が欠けた孔であってもよいし、図（ｄ）に示すように上端と下端が欠けた孔であってもよい。 FIGS. 3(a) to 3(d) are diagrams for explaining the types of the translucent holes 32. FIG. The plurality of light-transmitting holes 32 formed in the light-receiving surface side coating layer 28 may be circular or polygonal holes when viewed from the front, as shown in FIG. 3(a). Alternatively, the light-transmitting hole 32 may be one large hole provided in the central portion of the light-receiving surface side coating layer 28, as shown in FIG. 3(b). A single large hole does not have to be a completely enclosed hole, and may be a hole with a missing top end as shown in FIG. It may be a hole with a missing lower end.
　透光孔３２は、受光面側被覆層２８の厚さ方向に貫通した貫通孔であってよい。このような貫通孔は、受光面側封止層２４上にべたに受光面側被覆層２８を形成する材料を塗布した後、該材料層に物理的又は化学的な方法で形成されてよい。あるいは、貫通孔は、受光面側封止層２４上の貫通孔を形成したい部分をテープなどで養生し、受光面側被覆層２８を形成する材料を塗布した後に養生を剥がすことにより形成されてもよい。 The light-transmitting holes 32 may be through-holes penetrating through the light-receiving surface side coating layer 28 in the thickness direction. Such through-holes may be formed in the material layer by a physical or chemical method after a material for forming the light-receiving-surface-side covering layer 28 is applied all over the light-receiving-surface-side sealing layer 24 . Alternatively, the through-holes are formed by curing a portion of the light-receiving surface-side sealing layer 24 where the through-holes are to be formed with a tape or the like, applying a material for forming the light-receiving surface-side coating layer 28, and then removing the curing. good too.
　太陽電池セルの受光面を被覆層で覆った場合、発電効率の低下が生じる。被覆層を透明または半透明とした場合であっても若干の発電効率の低下が生じ、被覆層を有色とした場合は発電効率の低下の度合いが高くなる。本第１実施形態に係るロールスクリーン装置１０では、受光面側被覆層２８に複数の透光孔３２を形成したので、透光孔３２を介して太陽光を太陽電池セル２０に取り込むことができ、発電効率を向上することができる。特に受光面側被覆層２８が有色の場合は、発電効率を大幅に向上することができる。 When the light-receiving surface of the solar cell is covered with a coating layer, power generation efficiency decreases. Even if the coating layer is transparent or translucent, the power generation efficiency is slightly lowered, and if the coating layer is colored, the power generation efficiency is lowered to a greater extent. In the roll screen device 10 according to the first embodiment, since the plurality of light-transmitting holes 32 are formed in the light-receiving surface side coating layer 28, sunlight can be taken into the solar cell 20 through the light-transmitting holes 32. , the power generation efficiency can be improved. Especially when the light-receiving surface side coating layer 28 is colored, the power generation efficiency can be greatly improved.
　上記の例では、透光孔３２を貫通孔としたが、透光孔３２は貫通孔に限定されず、その周囲の部分よりも高い透光性を有しているものであればよい。例えば、透光孔３２は、非透明な受光面側被覆層２８に透明な孔状部分を設けたものであってもよい。この場合も、透明な孔状部分から太陽光を太陽電池セル２０に取り込むことができるので、全面を非透明とした場合と比較して発電効率を向上できる。 In the above example, the light-transmitting hole 32 is a through hole, but the light-transmitting hole 32 is not limited to being a through hole, and may have higher light transmittance than the surrounding portion. For example, the translucent hole 32 may be formed by providing a transparent hole-like portion in the non-transparent light-receiving surface side coating layer 28 . In this case also, sunlight can be taken into the solar cell 20 through the transparent hole-shaped portions, so that the power generation efficiency can be improved compared to the case where the entire surface is non-transparent.
　上述したように、第１実施形態に係るロールスクリーン装置１０では、スクリーン部１２の左右の端部がガイドレール１６，１７によって挟み込まれている。ガイドレール１６，１７によって挟み込まれているスクリーン部１２の端部には、太陽電池セル２０（より詳細には薄膜シリコン２２および透明電極膜２３）は形成されていない。 As described above, in the roll screen device 10 according to the first embodiment, the left and right ends of the screen portion 12 are sandwiched between the guide rails 16 and 17 . Solar cells 20 (more specifically, thin silicon 22 and transparent electrode film 23) are not formed at the ends of screen portion 12 sandwiched by guide rails 16 and 17. As shown in FIG.
　スクリーン部１２の端部は、スクリーン部１２の昇降によってガイドレール１６，１７と摺動するため、摺動に対する耐久性が必要とされる。そこで本実施形態では、ガイドレール１６，１７と摺動する受光面側被覆層２８の端部２８ａ，２８ｂには透光孔が形成されていない。これにより、透光孔の存在による強度の低下や傷による透過性の低下を防ぐことができるので、耐摺動性を確保することができる。 The ends of the screen part 12 slide on the guide rails 16 and 17 when the screen part 12 moves up and down, so durability against sliding is required. Therefore, in the present embodiment, light-transmitting holes are not formed in the end portions 28a, 28b of the light-receiving side coating layer 28 that slides on the guide rails 16, 17. As shown in FIG. As a result, it is possible to prevent a decrease in strength due to the presence of the light-transmitting holes and a decrease in transmittance due to scratches, so that sliding resistance can be ensured.
　このように、本実施形態に係るロールスクリーン装置１０によれば、発電効率の向上と耐摺動性の確保を両立することができる。 Thus, according to the roll screen device 10 according to the present embodiment, it is possible to both improve power generation efficiency and ensure sliding resistance.
　図４は、ロールスクリーン装置の変形例を説明するための図である。図４に示すように、変形例に係るロールスクリーン装置１１０においては、ガイドレール１６，１７によって挟み込まれているスクリーン部１２の端部に、ダミー薄膜シリコン２７およびダミー透明電極膜２９が形成されている。ダミー薄膜シリコン２７およびダミー透明電極膜２９は、取り出し電極が設けられていない。すなわち、ダミー薄膜シリコン２７およびダミー透明電極膜２９が形成されている部分は、発電に寄与しないダミー太陽電池セル部５１となっている。一方、スクリーン部１２の面内においてダミー太陽電池セル部５１より内側の薄膜シリコン２２および透明電極膜２３が形成されている部分は、取り出し電極が設けられており、発電に寄与する太陽電池セル部５０となっている。このようなダミー太陽電池セル部５１を形成することにより、太陽電池セル部５０とのデザイン性の統一を図ることができる。仮にダミー薄膜シリコン２７およびダミー透明電極膜２９が形成されている部分に電極を設けたとしても、最終的に結線しなければ同義である。 FIG. 4 is a diagram for explaining a modification of the roll screen device. As shown in FIG. 4, in the roll screen device 110 according to the modification, a dummy thin film silicon 27 and a dummy transparent electrode film 29 are formed at the ends of the screen portion 12 sandwiched between the guide rails 16 and 17. there is The dummy thin film silicon 27 and the dummy transparent electrode film 29 are not provided with extraction electrodes. That is, the portion where dummy thin film silicon 27 and dummy transparent electrode film 29 are formed serves as dummy solar cell portion 51 that does not contribute to power generation. On the other hand, the portion where the thin film silicon 22 and the transparent electrode film 23 are formed inside the dummy solar cell portion 51 in the plane of the screen portion 12 is provided with an extraction electrode, and the solar cell portion that contributes to power generation. 50. By forming such a dummy solar cell portion 51, the design can be unified with the solar cell portion 50. FIG. Even if an electrode is provided in the portion where the dummy thin film silicon 27 and the dummy transparent electrode film 29 are formed, it is the same meaning unless it is finally connected.
　図５は、変形例に係るロールスクリーン装置１１０の概略正面図である。図６は、変形例に係るロールスクリーン装置１１０の巻取部１９の周辺を示す図である。図７は、変形例に係るロールスクリーン装置１１０のボトムレール１８の周辺を示す図である。 FIG. 5 is a schematic front view of a roll screen device 110 according to a modification. FIG. 6 is a diagram showing the periphery of the winding unit 19 of the roll screen device 110 according to the modification. FIG. 7 is a diagram showing the periphery of the bottom rail 18 of the roll screen device 110 according to the modification.
　上述したように、ロールスクリーン装置１１０においては、ガイドレール１６，１７によって挟み込まれているスクリーン部１２の端部にダミー太陽電池セル部５１が設けられている。また、ロールスクリーン装置１１０では、図６に示すように、スクリーン部１２の上端の巻取部１９に固定される部分にも、ダミー太陽電池セル部５２が設けられている。さらに、ロールスクリーン装置１１０では、図７に示すように、スクリーン部１２の下端のボトムレール１８に固定される部分にも、ダミー太陽電池セル部５２が設けられている。 As described above, in the roll screen device 110, the dummy solar cell section 51 is provided at the end of the screen section 12 sandwiched between the guide rails 16 and 17. Further, in the roll screen device 110, as shown in FIG. 6, a dummy solar cell section 52 is also provided at the upper end portion of the screen section 12 fixed to the winding section 19. As shown in FIG. Furthermore, in the roll screen device 110, as shown in FIG. 7, a dummy solar cell section 52 is also provided at a portion fixed to the bottom rail 18 at the lower end of the screen section 12. As shown in FIG.
　本実施形態に係るロールスクリーン装置１０は、裏面側被覆層３０に映像を投影することで、投影スクリーンとしても利用することができる。すなわち、本実施形態に係るロールスクリーン装置１０によれば、遮光、発電、投影、遮熱および断熱を同時に実現することができる。 The roll screen device 10 according to this embodiment can also be used as a projection screen by projecting an image onto the back side coating layer 30 . That is, according to the roll screen device 10 according to the present embodiment, light shielding, power generation, projection, heat shielding and heat insulation can be realized at the same time.
（第２実施形態）
　図８は、第２実施形態に係るロールスクリーン装置４０の概略水平断面図である。第２実施形態に係るロールスクリーン装置４０は、受光面側被覆層２８の構成が第１実施形態に係るロールスクリーン装置１０と異なる。 (Second embodiment)
FIG. 8 is a schematic horizontal sectional view of a roll screen device 40 according to the second embodiment. A roll screen device 40 according to the second embodiment differs from the roll screen device 10 according to the first embodiment in the configuration of the light-receiving surface side coating layer 28 .
　第２実施形態に係るロールスクリーン装置４０では、太陽電池セル２０（より詳細には薄膜シリコン２２および透明電極膜２３）を覆う受光面側被覆層２８の部分２８ｃが、ガイドレール１６，１７と摺動する受光面側被覆層２８の端部２８ａ，２８ｂよりも薄く形成されている。太陽電池セル２０を覆う受光面側被覆層２８の部分２８ｃの厚さは、例えば０．０２５ｍｍ～０．２５ｍｍであってよい。ガイドレール１６，１７と摺動する受光面側被覆層２８の端部２８ａ，２８ｂの厚さは、例えば０．５ｍｍ～１．５ｍｍであってよい。 In the roll screen device 40 according to the second embodiment, the portion 28c of the light-receiving surface side coating layer 28 covering the solar cell 20 (more specifically, the thin film silicon 22 and the transparent electrode film 23) slides on the guide rails 16 and 17. It is formed thinner than the end portions 28a and 28b of the light-receiving surface side covering layer 28 which moves. The thickness of the portion 28c of the light-receiving side covering layer 28 covering the solar cell 20 may be, for example, 0.025 mm to 0.25 mm. The thickness of the end portions 28a, 28b of the light-receiving side coating layer 28 sliding on the guide rails 16, 17 may be, for example, 0.5 mm to 1.5 mm.
　このように、太陽電池セル２０を覆う受光面側被覆層２８の部分２８ｃを薄く形成することにより、太陽電池セル２０に光を取り込みやすくなるので、発電効率を向上することができる。特に受光面側被覆層２８が有色の場合は、発電効率を大幅に向上することができる。 By thinning the portion 28c of the light-receiving surface side coating layer 28 that covers the solar cell 20 in this way, it becomes easier for the solar cell 20 to take in light, so that the power generation efficiency can be improved. Especially when the light-receiving surface side coating layer 28 is colored, the power generation efficiency can be greatly improved.
　一方、ガイドレール１６，１７と摺動する受光面側被覆層２８の端部２８ａ，２８ｂについては厚くしているので、耐摺動性を確保することができる。 On the other hand, the end portions 28a, 28b of the light-receiving surface side coating layer 28 that slide on the guide rails 16, 17 are made thick, so that sliding resistance can be ensured.
　このように、本実施形態に係るロールスクリーン装置４０によっても、発電効率の向上と耐摺動性の確保を両立することができる。 Thus, the roll screen device 40 according to the present embodiment can also improve power generation efficiency and ensure sliding resistance.
　以上、本発明を実施の形態をもとに説明した。この実施の形態は例示であり、いろいろな変形および変更が本発明の特許請求範囲内で可能なこと、またそうした変形例および変更も本発明の特許請求の範囲にあることは当業者に理解されるところである。従って、本明細書での記述および図面は限定的ではなく例証的に扱われるべきものである。 The present invention has been described above based on the embodiment. This embodiment is an example, and those skilled in the art will understand that various modifications and changes are possible within the scope of the claims of the present invention, and that such modifications and changes also fall within the scope of the claims of the present invention. It is about Accordingly, the description and drawings herein are to be regarded in an illustrative rather than a restrictive sense.
　本発明は、太陽電池セルを備えたロールスクリーン装置に利用できる。 The present invention can be used for roll screen devices equipped with solar cells.
　１０，４０，１１０　ロールスクリーン装置、　１２　スクリーン部、　１４　保持部、　１５　ケース、　１６　ガイドレール、　２０　太陽電池セル、　２１　ポリイミド基板、　２２　薄膜シリコン、　２４　受光面側封止層、　２６　裏面側封止層、　２８　受光面側被覆層、　３０　裏面側被覆層、　３２　透光孔、　５０　太陽電池セル部、　５１，５２，５３　ダミー太陽電池セル部。 10, 40, 110 roll screen device, 12 screen part, 14 holding part, 15 case, 16 guide rail, 20 solar battery cell, 21 polyimide substrate, 22 thin film silicon, 24 light receiving side sealing layer, 26 back side sealing Layer, 28 Light-receiving side coating layer, 30 Back side coating layer, 32 Translucent hole, 50 Solar cell part, 51, 52, 53 Dummy solar cell part.

Claims (6)

  1. 　シート状に構成されるスクリーン部と、前記スクリーン部を保持する保持部とを備えるロールスクリーン装置であって、
    　前記スクリーン部は、
    　太陽電池セルと、
    　前記太陽電池セルの受光面上に形成される受光面側封止層と、
    　前記受光面側封止層上に形成される受光面側被覆層と、
    　前記受光面側被覆層に形成される透光孔と、
    　を備えることを特徴とするロールスクリーン装置。     A roll screen device comprising a sheet-shaped screen portion and a holding portion for holding the screen portion,
    The screen part
    a solar cell;
    a light-receiving surface-side sealing layer formed on the light-receiving surface of the solar cell;
    a light-receiving surface-side coating layer formed on the light-receiving surface-side sealing layer;
    a light-transmitting hole formed in the light-receiving surface side coating layer;
    A roll screen device comprising:
  2. 　前記スクリーン部の昇降を案内するガイドレールをさらに備えることを特徴とする請求項１に記載のロールスクリーン装置。 The roll screen device according to claim 1, further comprising a guide rail that guides the elevation of the screen portion.
  3. 　前記透光孔は、前記ガイドレールと摺動する前記受光面側被覆層の端部に形成されないことを特徴とする請求項２に記載のロールスクリーン装置。 The roll screen device according to claim 2, characterized in that the light-transmitting holes are not formed at the end of the light-receiving surface side coating layer that slides on the guide rail.
  4. 　前記ガイドレールによって挟み込まれる前記スクリーン部の端部に、発電に寄与しないダミー太陽電池セル部が形成されることを特徴とする請求項２または３に記載のロールスクリーン装置。 A roll screen device according to claim 2 or 3, characterized in that a dummy solar cell section that does not contribute to power generation is formed at the end of the screen section that is sandwiched between the guide rails.
  5. 　前記スクリーン部を巻き取るための巻取部をさらに備え、
    　前記スクリーン部の上端の前記巻取部に固定される部分に、発電に寄与しないダミー太陽電池セル部が形成されることを特徴とする請求項１から４のいずれかに記載のロールスクリーン装置。     Further comprising a winding unit for winding the screen unit,
    5. The roll screen device according to any one of claims 1 to 4, wherein a dummy solar cell portion that does not contribute to power generation is formed in a portion fixed to the winding portion at the upper end of the screen portion.
  6. 　前記スクリーン部の下部に設けられたボトムレールをさらに備え、
    　前記スクリーン部の下端の前記ボトムレールに固定される部分に、発電に寄与しないダミー太陽電池セル部が形成されることを特徴とする請求項１から５のいずれかに記載のロールスクリーン装置。     Further comprising a bottom rail provided at the bottom of the screen part,
    6. The roll screen device according to any one of claims 1 to 5, wherein a dummy solar cell portion that does not contribute to power generation is formed in a portion fixed to the bottom rail at the lower end of the screen portion.
PCT/JP2021/047226 2021-02-05 2021-12-21 Roll screen device WO2022168473A1 (en)

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JP2021-017628 2021-02-05

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1093124A (en) * 1996-09-12 1998-04-10 Canon Inc Solar cell module
JPH1122332A (en) * 1997-07-09 1999-01-26 Figura Kk Double glazing
JP2013076293A (en) * 2011-09-30 2013-04-25 Mitsubishi Chemicals Corp Roll screen device
JP2015166525A (en) * 2014-03-03 2015-09-24 株式会社岡村製作所 storage system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1093124A (en) * 1996-09-12 1998-04-10 Canon Inc Solar cell module
JPH1122332A (en) * 1997-07-09 1999-01-26 Figura Kk Double glazing
JP2013076293A (en) * 2011-09-30 2013-04-25 Mitsubishi Chemicals Corp Roll screen device
JP2015166525A (en) * 2014-03-03 2015-09-24 株式会社岡村製作所 storage system

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