WO2020004148A1 - Concentrating solar power generation module and concentrating solar power generation device - Google Patents

Concentrating solar power generation module and concentrating solar power generation device Download PDF

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Publication number
WO2020004148A1
WO2020004148A1 PCT/JP2019/024115 JP2019024115W WO2020004148A1 WO 2020004148 A1 WO2020004148 A1 WO 2020004148A1 JP 2019024115 W JP2019024115 W JP 2019024115W WO 2020004148 A1 WO2020004148 A1 WO 2020004148A1
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WIPO (PCT)
Prior art keywords
power generation
cell
frame
solar power
light
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PCT/JP2019/024115
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French (fr)
Japanese (ja)
Inventor
和正 鳥谷
永井　陽一
充 稲垣
宗譜 上山
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住友電気工業株式会社
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Publication of WO2020004148A1 publication Critical patent/WO2020004148A1/en

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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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/20—Optical components
    • H02S40/22—Light-reflecting 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
    • Y02E10/52—PV systems with concentrators

Definitions

  • the present invention relates to a concentrating solar power generation module and a concentrating solar power generation device.
  • This application claims the priority based on Japanese Patent Application No. 2018-121995 filed on June 27, 2018, and incorporates all the contents described in the Japanese application.
  • the condensing type solar power generation device has a minimum unit of a basic configuration of an optical system that collects sunlight by a condensing lens and makes it incident on a small cell for power generation.
  • a concentrating photovoltaic power generation module in which the concentrating photovoltaic power generation units having this basic configuration are arranged in a matrix in a housing. Furthermore, an array (panel) is configured by arranging a large number of such concentrating solar power generation modules, and one concentrating solar power generation device is obtained.
  • a tracking pedestal on which the array is mounted is supported by a column so that it can be driven in two axes, azimuth and elevation (for example, see Patent Document 1).
  • the sunlight can be accurately collected at the target position on the cell, but in practice there may be a slight shift.
  • a ball lens is arranged slightly above the cell, and even if the light slightly shifts, the light can enter the ball lens. (For example, see Patent Documents 2 and 3).
  • JP 2014-226025 A United States Patent Application Publication US2010 / 0236603A1 JP 2014-63779 A JP 2015-90914 A
  • a concentrating photovoltaic module includes a plurality of concentrating photovoltaic units for concentrating sunlight and generating power, the concentrating photovoltaic module being arranged in a housing.
  • the frame includes an enclosing frame, and a light-transmissive sealing resin that seals the cells inside the frame.
  • FIG. 1 is a perspective view of one example of a concentrating solar power generation device as viewed from the light receiving surface side, and shows the solar power generation device in a completed state.
  • FIG. 2 is a perspective view of one example of a concentrating solar power generation device as viewed from the light-receiving surface side, and shows the solar power generation device in the middle of assembly.
  • FIG. 3 is a perspective view showing, as an example, the attitude of the array facing the sun.
  • FIG. 4 is a perspective view showing an example of the configuration of the concentrating solar power generation module.
  • FIG. 5 is a cross-sectional view illustrating an example of a concentrating photovoltaic power generation unit as a basic configuration of a concentrating photovoltaic power generation system constituting the concentrating photovoltaic module.
  • FIG. 6 is a cross-sectional view of the concentrator photovoltaic power generation unit similar to FIG. 5, but shows an example of a state in which a slight tracking shift has occurred.
  • FIG. 7 is a cross-sectional view showing only the light receiving unit of FIG. 8A and 8B are plan views of the flexible printed wiring board, in which FIG. 8A is a diagram showing a state of a conductive pattern, FIG. 8B is a diagram showing a place where a frame and a cell are attached by hatching with dotted lines, and FIG. It is a figure which shows the state which attached the frame and the cell to the area
  • FIG. 8A is a diagram showing a state of a conductive pattern
  • FIG. 8B is a diagram showing a place where a frame and a cell are attached by hatching with dotted lines
  • FIG. It is a figure which shows the state which attached the frame and the cell to the area
  • FIG. 9 is a perspective view showing how to attach the frame and the secondary lens to the conductive pattern of the flexible printed wiring board.
  • FIG. 10 is a cross-sectional view (upper) and a plan view (lower) illustrating another configuration example 1 of the light receiving unit.
  • FIG. 11 is a cross-sectional view (upper) and a plan view (lower) illustrating another configuration example 2 of the light receiving unit.
  • FIG. 12 is a cross-sectional view (upper) and a plan view (lower) illustrating another configuration example 3 of the light receiving unit.
  • FIG. 13 is a cross-sectional view (upper) and a plan view (lower) illustrating another configuration example 4 of the light receiving unit.
  • FIG. 14 is a perspective view of a conventional package with a ball lens mounted thereon.
  • FIG. 14 is a perspective view of the package 52 with the ball lens 51 placed thereon.
  • the package 52 holds a cell (not shown) below the ball lens 51 and also serves as a support for supporting the ball lens 51.
  • the use of a large number of packages 52 for one module is an obstacle to further cost reduction.
  • the present disclosure provides a light-receiving unit in a concentrating photovoltaic power generation unit that constitutes a concentrating photovoltaic power generation module, with a simple and low-cost structure, and with improved light guiding and heat radiation functions. Aim.
  • the light-receiving part in the concentrating photovoltaic power generation unit which comprises a concentrating photovoltaic power generation module can be made simple and low-cost structure, and the light guide and heat dissipation function can be improved.
  • the gist of the embodiments of the present invention includes at least the following.
  • This is a concentrating photovoltaic power generation module configured by arranging a plurality of concentrating photovoltaic power generation units for concentrating sunlight and generating power, and is arranged in a housing.
  • Each of the photovoltaic units is a primary lens that condenses incident sunlight, a flexible printed wiring board provided on the bottom surface of the housing, and the flexible printed wiring board, when facing the sun, A cell that is provided at a position that coincides with the optical axis of the primary lens and that performs photoelectric conversion on the collected light; a frame that is bonded to the conductive pattern of the flexible printed wiring board and surrounds the cell; And a light transmitting sealing resin for sealing the cell.
  • the frame contributes to reflect light that has left the cell and guide it to the cell. Further, since the frame is in a relationship of being joined to the conductive pattern, the heat of the cells is conducted to the frame via the conductive pattern, and the frame contributes to heat radiation. In this manner, both the light guiding and heat radiation effects can be enhanced by eliminating the cell resin package and the like and using a simple and inexpensive structure.
  • the material of the frame is any one of a metal, a ceramic and a resin having a thermal conductivity of 1 [W / m ⁇ K] or more. It is preferable that Such a frame contributes to heat dissipation of the cell due to a certain degree of thermal conductivity. In particular, a metal frame can be manufactured at low cost.
  • a gap may be formed between the primary lens and the cell on the optical axis and between the primary lens and the cell.
  • a secondary lens held by the frame may be provided.
  • the frame serves as a support for the secondary lens, and can also reflect the scattered light leaked from the secondary lens and guide it to the cell.
  • the frame body includes a cylindrical support base and an end of the support base on a light incident side. And a flange-shaped shielding portion formed at the bottom. In this case, it is possible to prevent the OFF-AXIS light whose focus position deviates from the cell from hitting the bypass diode, for example, by the shielding unit, and protect the bypass diode from the OFF-AXIS light.
  • the frame may have a shape in which an opening is widened toward a light incident side.
  • the frame body can receive light that does not directly enter the cell through the wide opening, and can reflect the light on the inner surface and guide the light to the cell.
  • the secondary lens can be omitted.
  • the frame may be attached to the conductive pattern to which one of the poles on the bottom side of the cell is joined. Are also joined. In this case, since the frame is also joined to the conductive pattern through which the heat of the cell is easily conducted, it is effective for heat dissipation of the cell.
  • the concentrator photovoltaic power generation device in which a plurality of concentrator photovoltaic modules of (1) are arranged on a mount for tracking the sun to form an array can be provided.
  • FIG. 1 and FIG. 2 are perspective views of one example of a concentrating solar power generation device as viewed from the light receiving surface side.
  • FIG. 1 shows the photovoltaic power generation device 100 in a completed state
  • FIG. 2 shows the photovoltaic power generation device 100 in a state of being assembled.
  • FIG. 2 shows a state in which the framework of the tracking gantry 25 is visible in the right half, and a state in which the concentrating photovoltaic module (hereinafter, also simply referred to as a module) 1M is attached is shown in the left half.
  • the module 1M When actually mounting the module 1M on the tracking gantry 25, the mounting is performed with the tracking gantry 25 laid on the ground.
  • the photovoltaic power generation device 100 includes an array (entire photovoltaic power generation panel) 1 that is continuous on the upper side and divided into left and right sides on the lower side, and a support device 2 for the array.
  • the array 1 is configured by arranging the modules 1M on a tracking rack 25 (FIG. 2) on the rear side.
  • the support device 2 includes a support 21, a foundation 22, a two-axis drive unit 23, and a horizontal shaft 24 (FIG. 2) serving as a drive shaft.
  • the support 21 has a lower end fixed to the foundation 22 and a biaxial drive unit 23 at the upper end.
  • the foundation 22 is buried firmly in the ground so that only the upper surface can be seen.
  • the columns 21 are vertical and the horizontal axis 24 (FIG. 2) is horizontal.
  • the two-axis driving unit 23 can rotate the horizontal axis 24 in two directions of an azimuth (an angle with the support 21 as a central axis) and an elevation (an angle with the horizontal axis 24 as a central axis).
  • a reinforcing member 25 a for reinforcing the tracking gantry 25 is attached to the horizontal shaft 24.
  • a plurality of horizontal rails 25b are attached to the reinforcing member 25a.
  • the support device 2 supporting the array 1 with one support 21 is shown, but the configuration of the support device 2 is not limited to this. In short, any supporting device that can support the array 1 so as to be movable in two axes (azimuth and elevation) may be used.
  • FIG. 3 is a perspective view showing the attitude of the array 1 facing the sun as an example.
  • the array 1 takes a horizontal posture with the light receiving surface facing the sun.
  • the light receiving surface of the array 1 is oriented horizontally with the light receiving surface facing the ground.
  • FIG. 4 is a perspective view illustrating an example of a configuration of the concentrating solar power generation module 1M.
  • the module 1M includes, as a physical form in appearance, a rectangular flat-bottomed container 11 made of, for example, metal or resin, and a light collector 12 mounted thereon like a lid. I have.
  • the condensing unit 12 is configured by, for example, attaching a resin primary lens (Fresnel lens) 12f to the back surface of a single light-transmitting glass plate 12a.
  • a resin primary lens Resnel lens
  • each of the sections of the illustrated square (14 ⁇ 10 in this example, but the number is merely an example for explanation) is a primary lens 12f, and converges sunlight to a focal position. be able to.
  • one elongated flexible printed wiring board 13 is arranged so as to be aligned while changing the direction as illustrated.
  • the flexible printed wiring board 13 has a relatively wide portion and a narrow portion.
  • a cell (not shown) is mounted on a wide area. The cells are arranged at positions corresponding to the respective optical axes of the Fresnel lens 12f.
  • a metal shielding plate 14 is attached between the flexible printed wiring board 13 and the light collector 12.
  • a square opening 14a similar to the square of the primary lens 12f is formed at a position corresponding to the center of each primary lens 12f. If the array 1 accurately tracks the sun and the incident angle of the sunlight on the module 1M is 0 degree, the light collected by the primary lens 12f can pass through the opening 14a. If the tracking deviates significantly, the collected light is shielded by the shield plate 14. However, when the tracking shift is slight, the collected light passes through the opening 14a.
  • FIG. 5 is a cross-sectional view illustrating an example of a concentrating photovoltaic power generation unit 1U as a basic configuration of a concentrating photovoltaic power generation optical system constituting the module 1M.
  • Each part shown in FIG. 5 is appropriately enlarged and drawn for convenience of description of the structure, and is not necessarily a figure proportional to the actual dimensions (the same applies to FIG. 6 and subsequent figures).
  • the light receiving section R includes a secondary lens 30, a frame 31, a conductive pattern 32, a cell 33, and a sealing resin.
  • the frame 31 is provided so as to surround the cell 33.
  • the light receiving unit R is mounted on the flexible printed wiring board 13.
  • a bypass diode is connected to the cell 33 in parallel, where the bypass diode is provided is not particularly limited in the present embodiment.
  • the secondary lens 30 is, for example, a ball lens.
  • the secondary lens 30 is supported by the upper end inner peripheral edge 31 e of the frame 31 so that a gap in the optical axis Ax direction is formed between the secondary lens 30 and the cell 33.
  • the frame body 31 has, for example, a rectangular tubular shape and is made of metal.
  • the cell 33 and the frame 31 are joined to the conductive pattern 32 by applying, for example, a conductive silver paste.
  • the sealing resin 34 is a light-transmitting silicone resin, for example, and is provided so as to fill a space formed between the secondary lens 30 and the cell 33 inside the frame 31.
  • FIG. 6 is a cross-sectional view of the concentrating solar power generation unit 1U similar to FIG. 5, but shows an example of a state where a slight tracking shift has occurred. As described above, there is no light shielding by the shielding plate 14 with a slight tracking deviation. Light that has entered the secondary lens 30 is guided to the cell 33, but light that has not entered the secondary lens 30 impinges on the end face 31 a of the frame 31. Since the frame body 31 is made of metal, there is no possibility of thermal damage due to light.
  • FIG. 7 is a cross-sectional view of only the light receiving portion R of FIG.
  • the light that has entered the secondary lens 30 is guided to the cell 33 as shown in FIG. 5, but in practice the light is slightly scattered in the secondary lens 30.
  • the scattered light may go out of the secondary lens 30 without going to the cell 33, but the light is reflected by the inner surface 31 b of the frame 31 having a metallic luster. , To the cell 33.
  • the secondary lens 30 As least a part of the light that has exited the secondary lens 30 as scattered light is guided to the cell 33 and contributes to power generation.
  • FIG. 8 is a plan view of the flexible printed wiring board 13, and is a view showing a procedure for attaching the frame 31 and the cell 33 to the conductive pattern 32.
  • the conductive pattern 32 is formed in a state where the positive conductive pattern 32p and the negative conductive pattern 32n are insulated from each other.
  • (B) of FIG. 8 shows the location where the frame body 31 and the cell 33 are attached by hatching with dotted lines.
  • C is a diagram showing a state in which silver paste is applied to the hatched area, and the frame body 31 and the cell 33 are attached (joined).
  • the bottom surface which is the positive pole of the cell 33, is physically and electrically connected to the conductive pattern 32p.
  • the negative pole on the surface side of the cell 33 is electrically connected to the conductive pattern 32n via a gold wire 35.
  • the frame 31 is electrically connected to the conductive pattern 32p by being joined to the conductive pattern 32p with a silver paste.
  • the frame 31 is not an electrical member, but has good thermal conductivity with the conductive pattern 32p by being electrically connected.
  • the heat generated in the cell 33 is conducted to the conductive pattern 32p and further to the frame 31. Therefore, the frame 31 serves as a heat radiator and contributes to the heat radiation of the cell 33.
  • the thermal conductivity is about 0.2 [W / m ⁇ K]
  • the thermal conductivity is, for example, 236 [W / m]. [K], and there is an overwhelming difference in thermal conductivity.
  • the frame can also be joined by reflow at the same time, and joining can be performed in a simple process.
  • FIG. 9 is a perspective view showing a procedure for attaching the frame 31 and the secondary lens 30 to the conductive pattern 32 p of the flexible printed wiring board 13.
  • the frame 31 is joined to the conductive pattern 32p, and contributes to heat dissipation of the cell 33 (FIG. 8).
  • the metal frame 31 is provided with a notch 31c so as not to contact the negative conductive pattern 32n. Therefore, the conductive pattern 32n on the minus side does not contact the frame 31, and the insulation between the conductive patterns 32p and 32n is maintained.
  • the frame 31 is filled with a sealing resin 34 (FIG. 5), and the secondary lens 30 is provided so as to ride on the frame 31.
  • the sealing resin 34 is filled in the frame 31 between the secondary lens 30 and the cell 33, and the secondary lens 30 is also adhered and fixed by solidifying the sealing resin 34.
  • FIG. 10 is a cross-sectional view (upper) and a plan view (lower) illustrating another configuration example 1 of the light receiving unit R.
  • the difference from the light receiving unit R shown in FIGS. 5 to 9 is that the frame body 31 is not a square tube but a cylinder. Other configurations are the same. In this case, it is necessary to provide a notch 31c as shown in FIG. 9 appropriately so that the metal frame 31 does not ride on both the conductive patterns 32p and 32n shown in FIG.
  • the secondary lens 30 can be placed exactly on the upper end of the frame 31 without any gap. For example, such a frame 31 can be easily manufactured by cutting a metal pipe into a short tube.
  • FIG. 11 is a cross-sectional view (upper) and a plan view (lower) illustrating another configuration example 2 of the light receiving unit R.
  • the frame 31 integrally includes a cylindrical support base 31s and a flange-shaped shielding portion 31f at an end on the light incident side.
  • Other configurations are the same.
  • the shielding portion 31f widely covers the periphery of the cell 33, even when the tracking accuracy of the sun is reduced and the OFF-AXIS light is likely to hit the bypass diode 36, this can be surely prevented. Further, it is possible to prevent not only the bypass diode 36 but also the flexible printed wiring board 13 from being irradiated with the OFF-AXIS light.
  • FIG. 12 is a cross-sectional view (upper) and a plan view (lower) illustrating another configuration example 3 of the light receiving unit R.
  • a metal frame 31 as a reflector is provided instead of the secondary lens.
  • This frame 31 is joined to the conductive pattern 32 (32p) in the same manner as in FIG.
  • the opening of the frame body 31 is widened toward the light incident side (upper side in the cross-sectional view), and has a role as a light guide section that receives light widely and guides it to the cell 33.
  • At least a portion of the light that has not directly entered the cell 33 is reflected by the inner surface 31b of the frame 31 and guided to the cell 33, as indicated by the optical path indicated by the arrow in the figure.
  • the inside of the frame 31 is filled with a sealing resin 34 to seal the cell 33.
  • Such a frame body 31 also serves as a shielding part for preventing light from shining on the bypass diode 36.
  • FIG. 13 is a cross-sectional view (upper) and a plan view (lower) illustrating another configuration example 4 of the light receiving unit R.
  • the frame 31 shown in FIG. 13 is formed by integrally forming a reflector 31y similar to the frame 31 shown in FIG. 12 on a rectangular tubular base 31x as shown in FIG.
  • Other configurations are the same as the configuration example described above.
  • each light receiving unit R of the above concentrating solar power generation module is provided with the frame 31 that is joined to the conductive pattern 32 p of the flexible printed wiring board 13 and surrounds the cell 33.
  • the frame body 31 contributes to reflecting light that has left the cell 33 and guiding the light to the cell 33. Further, since the frame 31 is connected to the conductive pattern 32p, the heat of the cell 33 is conducted to the frame 31 via the conductive pattern 32p, and the frame 31 contributes to heat radiation. In this way, the resin package and the like of the cell 33 are eliminated, and both light guide and heat radiation effects can be enhanced with a simple and inexpensive structure.
  • the frame body 31 has been described as being made of metal.
  • the metal frame 31 can be manufactured at low cost, and has excellent heat resistance and thermal conductivity.
  • the material of the frame 31 may be other than metal.
  • ceramic or resin having heat resistance and a certain level of thermal conductivity can be used as the material of the frame 31.
  • the thermal conductivity of a certain level or more for example, the thermal conductivity is preferably 1 [W / m ⁇ K] or more from the viewpoint of at least the same level as glass.
  • the frame 31 is also joined to the conductive pattern 32p to which one of the poles on the bottom side of the cell 33 is joined, the frame 31 is also joined to the conductive pattern 32p where heat of the cell 33 is easily conducted. This is effective for heat dissipation of the cell 33.
  • the secondary lens 30 is located between the primary lens 12 f and the cell 33 on the optical axis Ax so that a frame is formed between the primary lens 12 f and the cell 33. 31. That is, the frame 31 serves as a support for the secondary lens 30, and can also reflect the scattered light leaked from the secondary lens 30 and guide the scattered light to the cell 33.
  • the frame 31 includes a cylindrical support base 31 s and a flange-shaped shielding part 31 f formed at an end of the support base 31 s on the light incident side. May be. In this case, it is possible to suppress the OFF-AXIS light from hitting, for example, the bypass diode 36 by the shielding portion 31f, and protect the bypass diode 36 from the OFF-AXIS light.
  • the frame body 31 can have a shape in which the opening is widened toward the light incident side. .
  • the frame body 31 can receive light that does not directly enter the cell 33 through the wide opening, and can reflect the light on the inner surface and guide the light to the cell 33.
  • the secondary lens can be omitted.

Abstract

This concentrating solar power generation module is configured by arraying, in a casing, a plurality of concentrating solar power generation units for concentrating solar light and generating power. Each of the concentrating solar power generation units is provided with: a primary lens that concentrates solar light having entered therein; a flexible printed wiring board (13) that is provided on the bottom surface of the casing; a cell (33) that is provided on the flexible printed wiring board (13) at a position aligned with the optical axis of the primary lens when facing the sun and that performs photoelectric conversion for the concentrated light; a frame body (31) that is joined to the conductive pattern (32) of the flexible printed wiring board (13) so as to surround the cell (33); and a light-transmissive sealing resin that is located inside the frame body (31) so as to seal the cell (33).

Description

集光型太陽光発電モジュール及び集光型太陽光発電装置Concentrating solar power module and concentrating solar power generating device
　本発明は、集光型太陽光発電モジュール及び集光型太陽光発電装置に関する。
　本出願は、２０１８年６月２７日出願の日本出願第２０１８－１２１９９５号に基づく優先権を主張し、前記日本出願に記載された全ての記載内容を援用するものである。 The present invention relates to a concentrating solar power generation module and a concentrating solar power generation device.
This application claims the priority based on Japanese Patent Application No. 2018-121995 filed on June 27, 2018, and incorporates all the contents described in the Japanese application.
　集光型太陽光発電装置は、集光レンズにより太陽光を集めて発電用の小さなセルに入射させる光学系の基本構成を最小単位としている。この基本構成である集光型太陽光発電ユニットを、筐体内にマトリクス状に並べたものが、集光型太陽光発電モジュールである。さらに、この集光型太陽光発電モジュールを多数並べてアレイ（パネル）が構成され、１基の集光型太陽光発電装置となる。太陽を追尾するため、アレイを載せる追尾架台は、方位角及び仰角の２軸駆動が可能なように支柱に支持されている（例えば、特許文献１参照。）。 The condensing type solar power generation device has a minimum unit of a basic configuration of an optical system that collects sunlight by a condensing lens and makes it incident on a small cell for power generation. A concentrating photovoltaic power generation module in which the concentrating photovoltaic power generation units having this basic configuration are arranged in a matrix in a housing. Furthermore, an array (panel) is configured by arranging a large number of such concentrating solar power generation modules, and one concentrating solar power generation device is obtained. In order to track the sun, a tracking pedestal on which the array is mounted is supported by a column so that it can be driven in two axes, azimuth and elevation (for example, see Patent Document 1).
　太陽の追尾が理想的に行われていれば、太陽光を正確にセル上の狙った位置に集めることができるが、実際には僅かなずれが生じる場合もある。このような僅かなずれを吸収するために、セルを含む受光部の構造として、ボールレンズをセルの少し上に配置し、光が僅かにずれてもボールレンズに入りさえすれば、光をセルに導くことができるようにする技術も提案されている（例えば、特許文献２，３参照。）。 If the sun is ideally tracked, the sunlight can be accurately collected at the target position on the cell, but in practice there may be a slight shift. In order to absorb such a slight shift, as a structure of the light receiving section including the cell, a ball lens is arranged slightly above the cell, and even if the light slightly shifts, the light can enter the ball lens. (For example, see Patent Documents 2 and 3).
特開２０１４－２２６０２５号公報JP 2014-226025 A 米国特許出願公開ＵＳ２０１０／０２３６６０３Ａ１United States Patent Application Publication US2010 / 0236603A1 特開２０１４－６３７７９号公報JP 2014-63779 A 特開２０１５－９０９１４号公報JP 2015-90914 A
　本開示は、以下の発明を含む。但し、本発明は、請求の範囲によって定められるものである。 This disclosure includes the following inventions. However, the present invention is defined by the claims.
　本発明の一表現に係る集光型太陽光発電モジュールは、太陽光を集光して発電する集光型太陽光発電ユニットが複数個、筐体内に並んで構成された集光型太陽光発電モジュールであって、前記集光型太陽光発電ユニットの各々は、入射する太陽光を集光する一次レンズと、前記筐体の底面に設けられたフレキシブルプリント配線板と、前記フレキシブルプリント配線板上の、太陽と正対したときの前記一次レンズの光軸と一致する位置に設けられ、集光した光について光電変換を行うセルと、前記フレキシブルプリント配線板の導電パターンに接合され、前記セルを囲む枠体と、前記枠体の内側にあって、前記セルを封止する光透過性の封止樹脂と、を備えている。 A concentrating photovoltaic module according to an embodiment of the present invention includes a plurality of concentrating photovoltaic units for concentrating sunlight and generating power, the concentrating photovoltaic module being arranged in a housing. A module, wherein each of the concentrating solar power generation units includes a primary lens that condenses incident sunlight, a flexible printed wiring board provided on a bottom surface of the housing, and a flexible printed wiring board on the flexible printed wiring board. A cell that is provided at a position that coincides with the optical axis of the primary lens when facing the sun, and that performs photoelectric conversion on condensed light, and is bonded to a conductive pattern of the flexible printed wiring board. The frame includes an enclosing frame, and a light-transmissive sealing resin that seals the cells inside the frame.
図１は、１基分の、集光型の太陽光発電装置の一例を、受光面側から見た斜視図であり、完成した状態での太陽光発電装置を示している。FIG. 1 is a perspective view of one example of a concentrating solar power generation device as viewed from the light receiving surface side, and shows the solar power generation device in a completed state. 図２は、１基分の、集光型の太陽光発電装置の一例を、受光面側から見た斜視図であり、組立途中の状態での太陽光発電装置を示している。FIG. 2 is a perspective view of one example of a concentrating solar power generation device as viewed from the light-receiving surface side, and shows the solar power generation device in the middle of assembly. 図３は、一例として、太陽に正対しているアレイの姿勢を示す斜視図である。FIG. 3 is a perspective view showing, as an example, the attitude of the array facing the sun. 図４は、集光型太陽光発電モジュールの構成の一例を示す斜視図である。FIG. 4 is a perspective view showing an example of the configuration of the concentrating solar power generation module. 図５は、集光型太陽光発電モジュールを構成する集光型発電の光学系の基本構成としての集光型太陽光発電ユニットの一例を示す断面図である。FIG. 5 is a cross-sectional view illustrating an example of a concentrating photovoltaic power generation unit as a basic configuration of a concentrating photovoltaic power generation system constituting the concentrating photovoltaic module. 図６は、図５と同様の集光型太陽光発電ユニットの断面図であるが、僅かな追尾のずれが発生した状態の一例を示している。FIG. 6 is a cross-sectional view of the concentrator photovoltaic power generation unit similar to FIG. 5, but shows an example of a state in which a slight tracking shift has occurred. 図７は、図５の受光部のみを抜き出した断面図である。FIG. 7 is a cross-sectional view showing only the light receiving unit of FIG. 図８は、フレキシブルプリント配線板の平面図であり、（ａ）は導電パターンの状態の図、（ｂ）は枠体及びセルを取り付ける場所を点線のハッチングで示した図、（ｃ）は、このハッチングの領域に枠体及びセルを取り付けた（接合した）状態を示す図である。8A and 8B are plan views of the flexible printed wiring board, in which FIG. 8A is a diagram showing a state of a conductive pattern, FIG. 8B is a diagram showing a place where a frame and a cell are attached by hatching with dotted lines, and FIG. It is a figure which shows the state which attached the frame and the cell to the area | region of this hatching (joined). 図９は、フレキシブルプリント配線板の導電パターンに枠体及び二次レンズを取り付ける要領を示す斜視図である。FIG. 9 is a perspective view showing how to attach the frame and the secondary lens to the conductive pattern of the flexible printed wiring board. 図１０は、受光部の他の構成例１を示す断面図（上）及び平面図（下）である。FIG. 10 is a cross-sectional view (upper) and a plan view (lower) illustrating another configuration example 1 of the light receiving unit. 図１１は、受光部の他の構成例２を示す断面図（上）及び平面図（下）である。FIG. 11 is a cross-sectional view (upper) and a plan view (lower) illustrating another configuration example 2 of the light receiving unit. 図１２は、受光部の他の構成例３を示す断面図（上）及び平面図（下）である。FIG. 12 is a cross-sectional view (upper) and a plan view (lower) illustrating another configuration example 3 of the light receiving unit. 図１３は、受光部の他の構成例４を示す断面図（上）及び平面図（下）である。FIG. 13 is a cross-sectional view (upper) and a plan view (lower) illustrating another configuration example 4 of the light receiving unit. 図１４は、ボールレンズを載せた状態での、従来のパッケージの斜視図である。FIG. 14 is a perspective view of a conventional package with a ball lens mounted thereon.
　［本開示が解決しようとする課題］
　集光型太陽光発電モジュールにおいて、ボールレンズを支持するには、例えば樹脂成型したパッケージが用いられる。図１４は、ボールレンズ５１を載せた状態でのパッケージ５２の斜視図である。パッケージ５２は、ボールレンズ５１の下にあるセル（図示せず。）を保持するとともに、ボールレンズ５１を支える支持部にもなる。しかしながら、１モジュールに多数のパッケージ５２を使うことは、さらなるコスト削減のためには、その阻害要因にもなっている。 [Problems to be solved by the present disclosure]
In the concentrating photovoltaic power generation module, for example, a resin molded package is used to support the ball lens. FIG. 14 is a perspective view of the package 52 with the ball lens 51 placed thereon. The package 52 holds a cell (not shown) below the ball lens 51 and also serves as a support for supporting the ball lens 51. However, the use of a large number of packages 52 for one module is an obstacle to further cost reduction.
　また、ボールレンズの代わりにホモジナイザを使う受光部もあるが（例えば、特許文献４参照。）、やはり受光部の構造が複雑、かつ、高価である。
　なお、受光部は、光をより良く導くことや放熱にも配慮する必要がある。 In addition, there is a light receiving unit using a homogenizer instead of a ball lens (for example, see Patent Document 4), but the structure of the light receiving unit is also complicated and expensive.
Note that the light receiving unit needs to take into consideration the better guiding of light and heat radiation.
　かかる課題に鑑み、本開示は、集光型太陽光発電モジュールを構成する集光型太陽光発電ユニットにおける受光部を、簡素で低コストな構造としつつ、導光及び放熱の機能を高めることを目的とする。 In view of such a problem, the present disclosure provides a light-receiving unit in a concentrating photovoltaic power generation unit that constitutes a concentrating photovoltaic power generation module, with a simple and low-cost structure, and with improved light guiding and heat radiation functions. Aim.
　［本開示の効果］
　本開示によれば、集光型太陽光発電モジュールを構成する集光型太陽光発電ユニットにおける受光部を、簡素で低コストな構造としつつ、導光及び放熱の機能を高めることができる。 [Effects of the present disclosure]
ADVANTAGE OF THE INVENTION According to this indication, the light-receiving part in the concentrating photovoltaic power generation unit which comprises a concentrating photovoltaic power generation module can be made simple and low-cost structure, and the light guide and heat dissipation function can be improved.
　［実施形態の要旨］
　本発明の実施形態の要旨としては、少なくとも以下のものが含まれる。 [Summary of Embodiment]
The gist of the embodiments of the present invention includes at least the following.
　（１）これは、太陽光を集光して発電する集光型太陽光発電ユニットが複数個、筐体内に並んで構成された集光型太陽光発電モジュールであって、前記集光型太陽光発電ユニットの各々は、入射する太陽光を集光する一次レンズと、前記筐体の底面に設けられたフレキシブルプリント配線板と、前記フレキシブルプリント配線板上の、太陽と正対したときの前記一次レンズの光軸と一致する位置に設けられ、集光した光について光電変換を行うセルと、前記フレキシブルプリント配線板の導電パターンに接合され、前記セルを囲む枠体と、前記枠体の内側にあって、前記セルを封止する光透過性の封止樹脂と、を備えている。 (1) This is a concentrating photovoltaic power generation module configured by arranging a plurality of concentrating photovoltaic power generation units for concentrating sunlight and generating power, and is arranged in a housing. Each of the photovoltaic units is a primary lens that condenses incident sunlight, a flexible printed wiring board provided on the bottom surface of the housing, and the flexible printed wiring board, when facing the sun, A cell that is provided at a position that coincides with the optical axis of the primary lens and that performs photoelectric conversion on the collected light; a frame that is bonded to the conductive pattern of the flexible printed wiring board and surrounds the cell; And a light transmitting sealing resin for sealing the cell.
　上記のように構成された集光型太陽光発電モジュールにおける集光型太陽光発電ユニットでは、枠体が、セルを外れた光を反射してセルに導くことに寄与する。また、枠体は導電パターンと互いに接合された関係にあるので、セルの熱が導電パターンを介して枠体に伝導し、枠体は放熱に寄与する。このようにして、セルの樹脂パッケージ等を廃し、簡素で安価な構造により、導光及び放熱の両方の効果を高めることができる。 枠 In the concentrating photovoltaic power generation unit in the concentrating photovoltaic power generation module configured as described above, the frame contributes to reflect light that has left the cell and guide it to the cell. Further, since the frame is in a relationship of being joined to the conductive pattern, the heat of the cells is conducted to the frame via the conductive pattern, and the frame contributes to heat radiation. In this manner, both the light guiding and heat radiation effects can be enhanced by eliminating the cell resin package and the like and using a simple and inexpensive structure.
　（２）また、（１）の集光型太陽光発電モジュールにおいて、前記枠体の材質は、金属、並びに、熱伝導率が１［Ｗ／ｍ・Ｋ］以上のセラミック及び樹脂の、いずれかであることが好ましい。
　このような枠体は、一定以上の熱伝導性により、セルの放熱に寄与する。特に、金属製の枠体は安価に製作できる。 (2) In the concentrator photovoltaic module of (1), the material of the frame is any one of a metal, a ceramic and a resin having a thermal conductivity of 1 [W / m · K] or more. It is preferable that
Such a frame contributes to heat dissipation of the cell due to a certain degree of thermal conductivity. In particular, a metal frame can be manufactured at low cost.
　（３）また、（１）又は（２）の集光型太陽光発電モジュールにおいて、前記光軸上で前記一次レンズと前記セルとの間にあって、前記セルとの間に隙間を形成するように前記枠体によって保持されている二次レンズ、を備えてもよい。
　この場合、枠体は二次レンズの支持体になるとともに、二次レンズから漏れ出た散乱光を反射してセルに導くこともできる。 (3) In the concentrator photovoltaic module according to (1) or (2), a gap may be formed between the primary lens and the cell on the optical axis and between the primary lens and the cell. A secondary lens held by the frame may be provided.
In this case, the frame serves as a support for the secondary lens, and can also reflect the scattered light leaked from the secondary lens and guide it to the cell.
　（４）また、（１）～（３）のいずれかの集光型太陽光発電モジュールにおいて、前記枠体は、筒状の支持基部と、当該支持基部の、光が入射する側の端部に形成されたフランジ状の遮蔽部とを備えていてもよい。
　この場合、集光位置がセルから外れるＯＦＦ－ＡＸＩＳ光が、例えばバイパスダイオードに当たるのを、遮蔽部によって抑制し、バイパスダイオードをＯＦＦ－ＡＸＩＳ光から保護することができる。 (4) In the concentrator photovoltaic power generation module according to any one of (1) to (3), the frame body includes a cylindrical support base and an end of the support base on a light incident side. And a flange-shaped shielding portion formed at the bottom.
In this case, it is possible to prevent the OFF-AXIS light whose focus position deviates from the cell from hitting the bypass diode, for example, by the shielding unit, and protect the bypass diode from the OFF-AXIS light.
　（５）また、（１）の集光型太陽光発電モジュールにおいて、前記枠体は、光の入射側に向かって開口が拡がっている形状であってもよい。
　この場合、枠体は、セルに直接入射しない光を広い開口により受け入れ、かつ、内面で反射してセルに導くことができる。この場合、二次レンズは省略することができる。 (5) In the concentrator photovoltaic module of (1), the frame may have a shape in which an opening is widened toward a light incident side.
In this case, the frame body can receive light that does not directly enter the cell through the wide opening, and can reflect the light on the inner surface and guide the light to the cell. In this case, the secondary lens can be omitted.
　（６）また、（１）～（５）のいずれかの集光型太陽光発電モジュールにおいて、例えば、前記セルの底面側である一方の極が接合されている前記導電パターンに、前記枠体も接合されている。
　この場合、セルの熱が伝導しやすい導電パターンに枠体も接合されているので、セルの放熱に効果的である。 (6) In the concentrator photovoltaic module according to any one of (1) to (5), for example, the frame may be attached to the conductive pattern to which one of the poles on the bottom side of the cell is joined. Are also joined.
In this case, since the frame is also joined to the conductive pattern through which the heat of the cell is easily conducted, it is effective for heat dissipation of the cell.
　（７）また、（１）の集光型太陽光発電モジュールを、太陽を追尾する架台上に複数個並べてアレイを構成した集光型太陽光発電装置とすることができる。 (7) Further, the concentrator photovoltaic power generation device in which a plurality of concentrator photovoltaic modules of (1) are arranged on a mount for tracking the sun to form an array can be provided.
　［実施形態の詳細］
　以下、本発明の一実施形態に係る集光型太陽光発電装置及び集光型太陽光発電モジュールについて、図面を参照して説明する。 [Details of Embodiment]
Hereinafter, a concentrating solar power generation device and a concentrating solar power generation module according to an embodiment of the present invention will be described with reference to the drawings.
　《太陽光発電装置》
　図１及び図２はそれぞれ、１基分の、集光型の太陽光発電装置の一例を、受光面側から見た斜視図である。図１は、完成した状態での太陽光発電装置１００を示し、図２は、組立途中の状態での太陽光発電装置１００を示している。図２は、追尾架台２５の骨組みが見える状態を右半分に示し、集光型太陽光発電モジュール（以下、単にモジュールとも言う。）１Ｍが取り付けられた状態を左半分に示している。なお、実際にモジュール１Ｍを追尾架台２５に取り付ける際は、追尾架台２５を地面に寝かせた状態で取り付けを行う。 《Solar power generator》
FIG. 1 and FIG. 2 are perspective views of one example of a concentrating solar power generation device as viewed from the light receiving surface side. FIG. 1 shows the photovoltaic power generation device 100 in a completed state, and FIG. 2 shows the photovoltaic power generation device 100 in a state of being assembled. FIG. 2 shows a state in which the framework of the tracking gantry 25 is visible in the right half, and a state in which the concentrating photovoltaic module (hereinafter, also simply referred to as a module) 1M is attached is shown in the left half. When actually mounting the module 1M on the tracking gantry 25, the mounting is performed with the tracking gantry 25 laid on the ground.
　図１において、この太陽光発電装置１００は、上部側で連続し、下部側で左右に分かれた形状のアレイ（太陽光発電パネル全体）１と、その支持装置２とを備えている。アレイ１は、背面側の追尾架台２５（図２）上にモジュール１Ｍを整列させて構成されている。図１の例では、左右のウイングを構成する（９６（＝１２×８）×２）個と、中央の渡り部分の８個との、合計２００個のモジュール１Ｍの集合体として、アレイ１が構成されている。 In FIG. 1, the photovoltaic power generation device 100 includes an array (entire photovoltaic power generation panel) 1 that is continuous on the upper side and divided into left and right sides on the lower side, and a support device 2 for the array. The array 1 is configured by arranging the modules 1M on a tracking rack 25 (FIG. 2) on the rear side. In the example of FIG. 1, the array 1 is an aggregate of a total of 200 modules 1M including (96 (= 12 × 8) × 2) pieces constituting left and right wings and eight pieces at the center crossover part. It is configured.
　支持装置２は、支柱２１と、基礎２２と、２軸駆動部２３と、駆動軸となる水平軸２４（図２）とを備えている。支柱２１は、下端が基礎２２に固定され、上端に２軸駆動部２３を備えている。 The support device 2 includes a support 21, a foundation 22, a two-axis drive unit 23, and a horizontal shaft 24 (FIG. 2) serving as a drive shaft. The support 21 has a lower end fixed to the foundation 22 and a biaxial drive unit 23 at the upper end.
　図１において、基礎２２は、上面のみが見える程度に地中に堅固に埋設される。基礎２２を地中に埋設した状態で、支柱２１は鉛直となり、水平軸２４（図２）は水平となる。２軸駆動部２３は、水平軸２４を、方位角（支柱２１を中心軸とした角度）及び仰角（水平軸２４を中心軸とした角度）の２方向に回動させることができる。図２において、水平軸２４には、追尾架台２５を補強する補強材２５ａが取り付けられている。また、補強材２５ａには、複数本の水平方向へのレール２５ｂが取り付けられている。従って、水平軸２４が方位角又は仰角の方向に回動すれば、アレイ１もその方向に回動する。 In FIG. 1, the foundation 22 is buried firmly in the ground so that only the upper surface can be seen. With the foundation 22 buried underground, the columns 21 are vertical and the horizontal axis 24 (FIG. 2) is horizontal. The two-axis driving unit 23 can rotate the horizontal axis 24 in two directions of an azimuth (an angle with the support 21 as a central axis) and an elevation (an angle with the horizontal axis 24 as a central axis). In FIG. 2, a reinforcing member 25 a for reinforcing the tracking gantry 25 is attached to the horizontal shaft 24. A plurality of horizontal rails 25b are attached to the reinforcing member 25a. Thus, if the horizontal axis 24 rotates in the azimuth or elevation direction, the array 1 also rotates in that direction.
　なお、図１，図２では１本の支柱２１でアレイ１を支える支持装置２を示したが、支持装置２の構成は、これに限られるものではない。要するに、アレイ１を、２軸（方位角、仰角）で可動なように支持できる支持装置であればよい。 In FIGS. 1 and 2, the support device 2 supporting the array 1 with one support 21 is shown, but the configuration of the support device 2 is not limited to this. In short, any supporting device that can support the array 1 so as to be movable in two axes (azimuth and elevation) may be used.
　図１のようにアレイ１が鉛直になっているのは、通常、夜明け及び日没前である。
　日中は、アレイ１の受光面が常に太陽に正対する姿勢となるよう、２軸駆動部２３が動作し、アレイ１は太陽の追尾動作を行う。
　図３は、一例として、太陽に正対しているアレイ１の姿勢を示す斜視図である。また、例えば赤道付近の南中時刻であれば、アレイ１は受光面を太陽に向けて水平な姿勢となる。夜間は、例えば、アレイ１の受光面を地面に向けて水平な姿勢となる。 The vertical orientation of the array 1 as in FIG. 1 is usually before dawn and before sunset.
During the day, the two-axis driving unit 23 operates so that the light receiving surface of the array 1 always faces the sun, and the array 1 performs a sun tracking operation.
FIG. 3 is a perspective view showing the attitude of the array 1 facing the sun as an example. In addition, for example, when the time is in the middle of the south near the equator, the array 1 takes a horizontal posture with the light receiving surface facing the sun. At night, for example, the light receiving surface of the array 1 is oriented horizontally with the light receiving surface facing the ground.
　《集光型太陽光発電モジュールの構成例》
　図４は、集光型太陽光発電モジュール１Ｍの構成の一例を示す斜視図である。但し、底面１１ｂ側はフレキシブルプリント配線板１３のみ示し、ここでは、他の構成要素は省略している。
　モジュール１Ｍは、外観上の物理的な形態としては、例えば金属製又は樹脂製で長方形の平底容器状の筐体１１と、その上に蓋のように取り付けられる集光部１２と、を備えている。集光部１２は、例えば１枚の光透過性のガラス板１２ａの裏面に樹脂製の一次レンズ（フレネルレンズ）１２ｆが貼り付けられて構成されている。例えば図示の正方形（この例では１４個×１０個であるが、数量は説明上の一例に過ぎない。）の区画の１つ１つが、一次レンズ１２ｆであり、太陽光を焦点位置に収束させることができる。 << Configuration example of concentrating solar power generation module >>
FIG. 4 is a perspective view illustrating an example of a configuration of the concentrating solar power generation module 1M. However, only the flexible printed wiring board 13 is shown on the bottom surface 11b side, and other components are omitted here.
The module 1M includes, as a physical form in appearance, a rectangular flat-bottomed container 11 made of, for example, metal or resin, and a light collector 12 mounted thereon like a lid. I have. The condensing unit 12 is configured by, for example, attaching a resin primary lens (Fresnel lens) 12f to the back surface of a single light-transmitting glass plate 12a. For example, each of the sections of the illustrated square (14 × 10 in this example, but the number is merely an example for explanation) is a primary lens 12f, and converges sunlight to a focal position. be able to.
　筐体１１の底面１１ｂ上には、例えば筐体１１の左半分及び右半分の各々において、１本の細長いフレキシブルプリント配線板１３が図示のように方向転換しながら整列するように配置されている。フレキシブルプリント配線板１３には相対的に幅広な部位と幅狭な部位とがある。セル（図示せず。）が実装されるのは幅広な部位である。セルはフレネルレンズ１２ｆの各々の光軸に対応する位置に配置される。 On the bottom surface 11 b of the housing 11, for example, in each of the left half and the right half of the housing 11, one elongated flexible printed wiring board 13 is arranged so as to be aligned while changing the direction as illustrated. . The flexible printed wiring board 13 has a relatively wide portion and a narrow portion. A cell (not shown) is mounted on a wide area. The cells are arranged at positions corresponding to the respective optical axes of the Fresnel lens 12f.
　フレキシブルプリント配線板１３と集光部１２との間には、例えば金属製の遮蔽板１４が取り付けられている。遮蔽板１４には、個々の一次レンズ１２ｆの中心に対応した位置に、一次レンズ１２ｆの正方形に相似な正方形の開口１４ａが形成されている。アレイ１が太陽を正確に追尾し、モジュール１Ｍに対する太陽光の入射角が０度であれば、一次レンズ１２ｆにより集光された光は開口１４ａを通過することができる。追尾が大きくずれた場合は、集光された光は遮蔽板１４により遮蔽される。但し、追尾のずれが僅かな場合は、集光された光は開口１４ａを通過する。 例 え ば For example, a metal shielding plate 14 is attached between the flexible printed wiring board 13 and the light collector 12. In the shielding plate 14, a square opening 14a similar to the square of the primary lens 12f is formed at a position corresponding to the center of each primary lens 12f. If the array 1 accurately tracks the sun and the incident angle of the sunlight on the module 1M is 0 degree, the light collected by the primary lens 12f can pass through the opening 14a. If the tracking deviates significantly, the collected light is shielded by the shield plate 14. However, when the tracking shift is slight, the collected light passes through the opening 14a.
　《集光型太陽光発電ユニットの構成例》
　図５は、モジュール１Ｍを構成する集光型発電の光学系の基本構成としての集光型太陽光発電ユニット１Ｕの一例を示す断面図である。なお、図５に示す各部は、構造説明の都合上、適宜拡大して描いており、必ずしも実際の寸法に比例した図ではない（図６以降も同様である。）。 << Configuration example of concentrating solar power generation unit >>
FIG. 5 is a cross-sectional view illustrating an example of a concentrating photovoltaic power generation unit 1U as a basic configuration of a concentrating photovoltaic power generation optical system constituting the module 1M. Each part shown in FIG. 5 is appropriately enlarged and drawn for convenience of description of the structure, and is not necessarily a figure proportional to the actual dimensions (the same applies to FIG. 6 and subsequent figures).
　図５において、集光型太陽光発電ユニット１Ｕが、太陽と正対し、太陽光の入射角が０度であると、一次レンズ１２ｆの光軸Ａｘ上に、受光部Ｒの二次レンズ３０及びセル３３があり、一次レンズ１２ｆにより集光する光は遮蔽板１４の開口１４ａを通り、受光部Ｒの二次レンズ３０に取り込まれ、セル３３に導かれる。 In FIG. 5, when the concentrating photovoltaic power generation unit 1U faces the sun and the incident angle of the sunlight is 0 degree, the secondary lens 30 of the light receiving unit R and the secondary lens 30 on the optical axis Ax of the primary lens 12f. There is a cell 33, and light condensed by the primary lens 12f passes through the opening 14a of the shielding plate 14, is taken into the secondary lens 30 of the light receiving unit R, and is guided to the cell 33.
　図５において、受光部Ｒは、二次レンズ３０、枠体３１、導電パターン３２、セル３３、及び、封止樹脂３４を備えている。枠体３１は、セル３３を囲むように設けられている。受光部Ｒは、フレキシブルプリント配線板１３上に実装されている。なお、セル３３には並列にバイパスダイオードが接続されるが、バイパスダイオードがどこに設けられるかは、本実施形態では特に限定していない。 In FIG. 5, the light receiving section R includes a secondary lens 30, a frame 31, a conductive pattern 32, a cell 33, and a sealing resin. The frame 31 is provided so as to surround the cell 33. The light receiving unit R is mounted on the flexible printed wiring board 13. Although a bypass diode is connected to the cell 33 in parallel, where the bypass diode is provided is not particularly limited in the present embodiment.
　二次レンズ３０は例えばボールレンズである。二次レンズ３０は枠体３１の上端部内周エッジ３１ｅにより、セル３３との間に光軸Ａｘ方向の隙間が形成されるように支持されている。枠体３１は、例えば角筒状であり、金属製である。セル３３及び枠体３１は、導電パターン３２に、例えば、導電性の銀ペーストを塗って接合されている。封止樹脂３４は、光透過性の例えばシリコーン樹脂であり、枠体３１の内側の、二次レンズ３０とセル３３との間に形成される空間を満たすように設けられている。 The secondary lens 30 is, for example, a ball lens. The secondary lens 30 is supported by the upper end inner peripheral edge 31 e of the frame 31 so that a gap in the optical axis Ax direction is formed between the secondary lens 30 and the cell 33. The frame body 31 has, for example, a rectangular tubular shape and is made of metal. The cell 33 and the frame 31 are joined to the conductive pattern 32 by applying, for example, a conductive silver paste. The sealing resin 34 is a light-transmitting silicone resin, for example, and is provided so as to fill a space formed between the secondary lens 30 and the cell 33 inside the frame 31.
　図６は、図５と同様の集光型太陽光発電ユニット１Ｕの断面図であるが、僅かな追尾のずれが発生した状態の一例を示している。前述のように、僅かな追尾ずれでは、遮蔽板１４による光の遮蔽はない。二次レンズ３０に入った光はセル３３に導かれるが、二次レンズ３０に入りきらなかった光は、枠体３１の端面３１ａに当たる。枠体３１は金属製であるため、光による熱的損傷の恐れはない。 FIG. 6 is a cross-sectional view of the concentrating solar power generation unit 1U similar to FIG. 5, but shows an example of a state where a slight tracking shift has occurred. As described above, there is no light shielding by the shielding plate 14 with a slight tracking deviation. Light that has entered the secondary lens 30 is guided to the cell 33, but light that has not entered the secondary lens 30 impinges on the end face 31 a of the frame 31. Since the frame body 31 is made of metal, there is no possibility of thermal damage due to light.
　図７は、図５の受光部Ｒのみを抜き出した断面図である。図において、二次レンズ３０内に入った光は、概ね図５に示すようにセル３３に導かれるが、実際には二次レンズ３０内で僅かな、光の散乱が生じる。例えば、図７の二点鎖線に示すように、散乱光はセル３３に向かわないで二次レンズ３０から出て行く場合があるが、金属光沢のある枠体３１の内面３１ｂにより光が反射し、セル３３に導かれる。このようにして、散乱光として二次レンズ３０を出た光も、その少なくとも一部は、セル３３に導かれ、発電に寄与する。 FIG. 7 is a cross-sectional view of only the light receiving portion R of FIG. In the figure, the light that has entered the secondary lens 30 is guided to the cell 33 as shown in FIG. 5, but in practice the light is slightly scattered in the secondary lens 30. For example, as shown by the two-dot chain line in FIG. 7, the scattered light may go out of the secondary lens 30 without going to the cell 33, but the light is reflected by the inner surface 31 b of the frame 31 having a metallic luster. , To the cell 33. Thus, at least a part of the light that has exited the secondary lens 30 as scattered light is guided to the cell 33 and contributes to power generation.
　図８は、フレキシブルプリント配線板１３の平面図であり、また、導電パターン３２への枠体３１及びセル３３の取り付け要領を示す図である。まず、（ａ）に示すように、導電パターン３２は、プラス側の導電パターン３２ｐと、マイナス側の導電パターン３２ｎとが互いに絶縁された状態で形成されている。 FIG. 8 is a plan view of the flexible printed wiring board 13, and is a view showing a procedure for attaching the frame 31 and the cell 33 to the conductive pattern 32. First, as shown in (a), the conductive pattern 32 is formed in a state where the positive conductive pattern 32p and the negative conductive pattern 32n are insulated from each other.
　図８の（ｂ）は、枠体３１及びセル３３を取り付ける場所を点線のハッチングで示している。（ｃ）は、このハッチングの領域に銀ペーストを塗り、枠体３１及びセル３３を取り付けた（接合した）状態を示す図である。セル３３のプラス極である底面は、導電パターン３２ｐと物理的且つ電気的に接続される。また、セル３３の表面側のマイナス極は、金ワイヤー３５を介して、導電パターン３２ｎと電気的に接続されている。枠体３１は、導電パターン３２ｐに銀ペーストで接合されていることにより、電気的に導電パターン３２ｐと接続されている。枠体３１は電気的部材ではないが、電気的に接続されていることにより、導電パターン３２ｐとの間で良好な熱伝導性を有する。従って、セル３３の発熱が導電パターン３２ｐに伝導し、さらに枠体３１に伝導する。従って、枠体３１は、放熱体となり、セル３３の放熱に寄与する。枠体３１がエポキシ樹脂などのパッケージの場合、熱伝導率は、０．２［Ｗ／ｍ・Ｋ］程度であるが、アルミニウム又はアルミ合金の場合、熱伝導率は、例えば２３６［Ｗ／ｍ・Ｋ］であり、熱伝導率に圧倒的な差がある。アルミニウム又はアルミ合金以外でも、例えば銅（熱伝導率３９８［Ｗ／ｍ・Ｋ］）又はステンレス（熱伝導率２６［Ｗ／ｍ・Ｋ］）などを使えば、例えばセルやダイオードを接合する際に枠体も同時にリフローによる接合を行うことができ、簡易な工程で接合が可能となる。 （(B) of FIG. 8 shows the location where the frame body 31 and the cell 33 are attached by hatching with dotted lines. (C) is a diagram showing a state in which silver paste is applied to the hatched area, and the frame body 31 and the cell 33 are attached (joined). The bottom surface, which is the positive pole of the cell 33, is physically and electrically connected to the conductive pattern 32p. The negative pole on the surface side of the cell 33 is electrically connected to the conductive pattern 32n via a gold wire 35. The frame 31 is electrically connected to the conductive pattern 32p by being joined to the conductive pattern 32p with a silver paste. The frame 31 is not an electrical member, but has good thermal conductivity with the conductive pattern 32p by being electrically connected. Therefore, the heat generated in the cell 33 is conducted to the conductive pattern 32p and further to the frame 31. Therefore, the frame 31 serves as a heat radiator and contributes to the heat radiation of the cell 33. When the frame 31 is a package such as an epoxy resin, the thermal conductivity is about 0.2 [W / m · K], but when the frame 31 is aluminum or an aluminum alloy, the thermal conductivity is, for example, 236 [W / m]. [K], and there is an overwhelming difference in thermal conductivity. Other than aluminum or aluminum alloy, for example, when using copper (thermal conductivity 398 [W / m · K]) or stainless steel (thermal conductivity 26 [W / m · K]), for example, when joining cells or diodes In addition, the frame can also be joined by reflow at the same time, and joining can be performed in a simple process.
　図９は、フレキシブルプリント配線板１３の導電パターン３２ｐに枠体３１及び二次レンズ３０を取り付ける要領を示す斜視図である。前述のように、枠体３１は、導電パターン３２ｐに接合され、セル３３（図８）の放熱に寄与する。金属製の枠体３１には、マイナス側の導電パターン３２ｎと接触しないように、切り欠き部３１ｃが設けられている。従って、マイナス側の導電パターン３２ｎは、枠体３１と接触せず、導電パターン３２ｐ、３２ｎ間の絶縁は維持されている。枠体３１の中には封止樹脂３４（図５）が充填され、二次レンズ３０が枠体３１に乗るように設けられる。封止樹脂３４は、枠体３１内で、二次レンズ３０とセル３３との間に充填され、封止樹脂３４の固化により二次レンズ３０も接着固定される。 FIG. 9 is a perspective view showing a procedure for attaching the frame 31 and the secondary lens 30 to the conductive pattern 32 p of the flexible printed wiring board 13. As described above, the frame 31 is joined to the conductive pattern 32p, and contributes to heat dissipation of the cell 33 (FIG. 8). The metal frame 31 is provided with a notch 31c so as not to contact the negative conductive pattern 32n. Therefore, the conductive pattern 32n on the minus side does not contact the frame 31, and the insulation between the conductive patterns 32p and 32n is maintained. The frame 31 is filled with a sealing resin 34 (FIG. 5), and the secondary lens 30 is provided so as to ride on the frame 31. The sealing resin 34 is filled in the frame 31 between the secondary lens 30 and the cell 33, and the secondary lens 30 is also adhered and fixed by solidifying the sealing resin 34.
　《受光部の他の構成例１》
　図１０は、受光部Ｒの他の構成例１を示す断面図（上）及び平面図（下）である。図５～図９に示した受光部Ｒとの違いは、枠体３１が、角筒状ではなく、円筒状である点である。その他の構成は同様である。この場合、金属製の枠体３１が、図８に示した導電パターン３２ｐ，３２ｎの両方に乗らないよう、適宜、図９に示したような切り欠き部３１ｃを設ける必要がある。円筒状の枠体３１の場合、二次レンズ３０を、枠体３１の上端と隙間なく、ぴったりと乗せることができる。例えば金属パイプを短管状に切断すれば容易に、このような枠体３１を作製することができる。 << Another configuration example 1 of light receiving section >>
FIG. 10 is a cross-sectional view (upper) and a plan view (lower) illustrating another configuration example 1 of the light receiving unit R. The difference from the light receiving unit R shown in FIGS. 5 to 9 is that the frame body 31 is not a square tube but a cylinder. Other configurations are the same. In this case, it is necessary to provide a notch 31c as shown in FIG. 9 appropriately so that the metal frame 31 does not ride on both the conductive patterns 32p and 32n shown in FIG. In the case of the cylindrical frame 31, the secondary lens 30 can be placed exactly on the upper end of the frame 31 without any gap. For example, such a frame 31 can be easily manufactured by cutting a metal pipe into a short tube.
　《受光部の他の構成例２》
　図１１は、受光部Ｒの他の構成例２を示す断面図（上）及び平面図（下）である。図１０に示した受光部Ｒとの違いは、枠体３１が、円筒状の支持基部３１ｓと、光の入射側の端部にフランジ状の遮蔽部３１ｆとを一体に備えている点である。その他の構成は同様である。この場合、遮蔽部３１ｆがセル３３の周囲を広く覆うことにより、太陽の追尾精度が低下してＯＦＦ－ＡＸＩＳ光がバイパスダイオード３６に当たりそうなときも、確実にこれを防止することができる。また、バイパスダイオード３６のみならず、フレキシブルプリント配線板１３にＯＦＦ－ＡＸＩＳ光が当たることを防止することができる。 << Another configuration example 2 of the light receiving section >>
FIG. 11 is a cross-sectional view (upper) and a plan view (lower) illustrating another configuration example 2 of the light receiving unit R. The difference from the light receiving portion R shown in FIG. 10 is that the frame 31 integrally includes a cylindrical support base 31s and a flange-shaped shielding portion 31f at an end on the light incident side. . Other configurations are the same. In this case, since the shielding portion 31f widely covers the periphery of the cell 33, even when the tracking accuracy of the sun is reduced and the OFF-AXIS light is likely to hit the bypass diode 36, this can be surely prevented. Further, it is possible to prevent not only the bypass diode 36 but also the flexible printed wiring board 13 from being irradiated with the OFF-AXIS light.
　《受光部の他の構成例３》
　図１２は、受光部Ｒの他の構成例３を示す断面図（上）及び平面図（下）である。この受光部Ｒでは、二次レンズの代わりにリフレクタとしての金属製の枠体３１が設けられる。この枠体３１は、図８と同様の要領で導電パターン３２（３２ｐ）に接合される。但し、この枠体３１は、光の入射側（断面図の上側）に向かって開口が拡がっており、広く光を受け入れてセル３３に導く導光部としての役割を有している。セル３３に直接入射しなかった光の少なくとも一部は、図中の矢印を付した光路に示すように、枠体３１の内面３１ｂで反射してセル３３に導かれる。枠体３１の内側には封止樹脂３４が充填され、セル３３を封止している。このような枠体３１は、バイパスダイオード３６に光が当たるのを防止する遮蔽部の役割も果たす。 << Other configuration example 3 of light receiving section >>
FIG. 12 is a cross-sectional view (upper) and a plan view (lower) illustrating another configuration example 3 of the light receiving unit R. In the light receiving section R, a metal frame 31 as a reflector is provided instead of the secondary lens. This frame 31 is joined to the conductive pattern 32 (32p) in the same manner as in FIG. However, the opening of the frame body 31 is widened toward the light incident side (upper side in the cross-sectional view), and has a role as a light guide section that receives light widely and guides it to the cell 33. At least a portion of the light that has not directly entered the cell 33 is reflected by the inner surface 31b of the frame 31 and guided to the cell 33, as indicated by the optical path indicated by the arrow in the figure. The inside of the frame 31 is filled with a sealing resin 34 to seal the cell 33. Such a frame body 31 also serves as a shielding part for preventing light from shining on the bypass diode 36.
　《受光部の他の構成例４》
　図１３は、受光部Ｒの他の構成例４を示す断面図（上）及び平面図（下）である。図１３の枠体３１は、図９に示したような角筒状の基部３１ｘの上に一体に、図１２に示した枠体３１と類似したリフレクタ部３１ｙが形成されたものである。その他の構成は、既述の構成例と同様である。 << Other configuration example 4 of light receiving section >>
FIG. 13 is a cross-sectional view (upper) and a plan view (lower) illustrating another configuration example 4 of the light receiving unit R. The frame 31 shown in FIG. 13 is formed by integrally forming a reflector 31y similar to the frame 31 shown in FIG. 12 on a rectangular tubular base 31x as shown in FIG. Other configurations are the same as the configuration example described above.
　《まとめ》
　以上のように、上記の集光型太陽光発電モジュールの各受光部Ｒは、フレキシブルプリント配線板１３の導電パターン３２ｐに接合され、セル３３を囲む枠体３１を備えている。枠体３１は、セル３３を外れた光を反射してセル３３に導くことに寄与する。また、枠体３１は導電パターン３２ｐと互いに接合された関係にあるので、セル３３の熱が導電パターン３２ｐを介して枠体３１に伝導し、枠体３１は放熱に寄与する。このようにして、セル３３の樹脂パッケージ等を廃し、簡素で安価な構造により、導光及び放熱の両方の効果を高めることができる。
　また、上記の説明では、枠体３１は金属製であるとして説明した。金属製の枠体３１は安価に作成することができ、耐熱性、熱伝導性にも優れている。但し、枠体３１の材質としては、金属以外でも可能である。例えば、耐熱性があり一定以上の熱伝導性のあるセラミック又は樹脂も、枠体３１の材質とすることが可能である。一定以上の熱伝導性としては、例えば、少なくともガラスと同等レベルとしての観点から、熱伝導率が１［Ｗ／ｍ・Ｋ］以上であることが好ましい。 《Summary》
As described above, each light receiving unit R of the above concentrating solar power generation module is provided with the frame 31 that is joined to the conductive pattern 32 p of the flexible printed wiring board 13 and surrounds the cell 33. The frame body 31 contributes to reflecting light that has left the cell 33 and guiding the light to the cell 33. Further, since the frame 31 is connected to the conductive pattern 32p, the heat of the cell 33 is conducted to the frame 31 via the conductive pattern 32p, and the frame 31 contributes to heat radiation. In this way, the resin package and the like of the cell 33 are eliminated, and both light guide and heat radiation effects can be enhanced with a simple and inexpensive structure.
In the above description, the frame body 31 has been described as being made of metal. The metal frame 31 can be manufactured at low cost, and has excellent heat resistance and thermal conductivity. However, the material of the frame 31 may be other than metal. For example, ceramic or resin having heat resistance and a certain level of thermal conductivity can be used as the material of the frame 31. As the thermal conductivity of a certain level or more, for example, the thermal conductivity is preferably 1 [W / m · K] or more from the viewpoint of at least the same level as glass.
　なお、セル３３の底面側である一方の極が接合されている導電パターン３２ｐに、枠体３１も接合されていることにより、セル３３の熱が伝導しやすい導電パターン３２ｐに枠体３１も接合されていることになるので、セル３３の放熱に効果的である。 Since the frame 31 is also joined to the conductive pattern 32p to which one of the poles on the bottom side of the cell 33 is joined, the frame 31 is also joined to the conductive pattern 32p where heat of the cell 33 is easily conducted. This is effective for heat dissipation of the cell 33.
　また、二次レンズ３０を設ける受光部Ｒの場合、二次レンズ３０は、光軸Ａｘ上で一次レンズ１２ｆとセル３３との間にあって、セル３３との間に隙間を形成するように枠体３１によって保持されている。
　すなわち、枠体３１は二次レンズ３０の支持体になるとともに、二次レンズ３０から漏れ出た散乱光を反射してセル３３に導くこともできる。 In the case of the light receiving portion R provided with the secondary lens 30, the secondary lens 30 is located between the primary lens 12 f and the cell 33 on the optical axis Ax so that a frame is formed between the primary lens 12 f and the cell 33. 31.
That is, the frame 31 serves as a support for the secondary lens 30, and can also reflect the scattered light leaked from the secondary lens 30 and guide the scattered light to the cell 33.
　また、図１１に示したように、枠体３１は、筒状の支持基部３１ｓと、当該支持基部３１ｓの、光が入射する側の端部に形成されたフランジ状の遮蔽部３１ｆとを備えていてもよい。
　この場合、ＯＦＦ－ＡＸＩＳ光が例えばバイパスダイオード３６に当たるのを、遮蔽部３１ｆによって抑制し、バイパスダイオード３６をＯＦＦ－ＡＸＩＳ光から保護することができる。 As shown in FIG. 11, the frame 31 includes a cylindrical support base 31 s and a flange-shaped shielding part 31 f formed at an end of the support base 31 s on the light incident side. May be.
In this case, it is possible to suppress the OFF-AXIS light from hitting, for example, the bypass diode 36 by the shielding portion 31f, and protect the bypass diode 36 from the OFF-AXIS light.
　一方、二次レンズを使用しない受光部Ｒの場合には、図１２又は図１３に示したように、枠体３１は、光の入射側に向かって開口が拡がっている形状とすることができる。
　この場合、枠体３１は、セル３３に直接入射しない光を広い開口により受け入れ、かつ、内面で反射してセル３３に導くことができる。この場合、二次レンズは省略することができる。 On the other hand, in the case of the light receiving unit R that does not use the secondary lens, as shown in FIG. 12 or 13, the frame body 31 can have a shape in which the opening is widened toward the light incident side. .
In this case, the frame body 31 can receive light that does not directly enter the cell 33 through the wide opening, and can reflect the light on the inner surface and guide the light to the cell 33. In this case, the secondary lens can be omitted.
　《その他》
　なお、上述の受光部Ｒの各構成例については、その少なくとも一部を、相互に任意に組み合わせてもよい。 《Other》
Note that at least a part of each configuration example of the light receiving unit R described above may be arbitrarily combined with each other.
　《補記》
　なお、今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は請求の範囲によって示され、請求の範囲と均等の意味及び範囲内での全ての変更が含まれることが意図される。 << Appendix >>
It should be understood that the embodiments disclosed this time are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
　１　アレイ
　１Ｍ　集光型太陽光発電モジュール（モジュール）
　１Ｕ　集光型太陽光発電ユニット
　２　支持装置
　１１　筐体
　１１ｂ　底面
　１２　集光部
　１２ａ　ガラス板
　１２ｆ　一次レンズ
　１３　フレキシブルプリント配線板
　１４　遮蔽板
　１４ａ　開口
　２１　支柱
　２２　基礎
　２３　２軸駆動部
　２４　水平軸
　２５　追尾架台
　２５ａ　補強材
　２５ｂ　レール
　３０　二次レンズ
　３１　枠体
　３１ａ　端面
　３１ｂ　内面
　３１ｃ　切り欠き部
　３１ｅ　上端部内周エッジ
　３１ｆ　遮蔽部
　３１ｓ　支持基部
　３１ｘ　基部
　３１ｙ　リフレクタ部
　３２，３２ｐ，３２ｎ　導電パターン
　３３　セル
　３４　封止樹脂
　３５　金ワイヤー
　３６　バイパスダイオード
　５１　ボールレンズ
　５２　パッケージ
　１００　太陽光発電装置
　Ａｘ　光軸
　Ｒ　受光部 1 array 1M concentrating solar power generation module (module)
1U Concentrating type photovoltaic power generation unit 2 Support device 11 Housing 11b Bottom surface 12 Condensing unit 12a Glass plate 12f Primary lens 13 Flexible printed wiring board 14 Shielding plate 14a Opening 21 Support 22 Base 23 2-axis driving unit 24 Horizontal axis 25 Tracking Mount 25a Reinforcement material 25b Rail 30 Secondary lens 31 Frame 31a End face 31b Inner face 31c Cutout part 31e Upper end inner peripheral edge 31f Shielding part 31s Support base 31x Base 31y Reflector part 32, 32p, 32n Conductive pattern 33 Cell sealing 35 Gold wire 36 Bypass diode 51 Ball lens 52 Package 100 Photovoltaic device Ax Optical axis R Light receiving unit

Claims (7)

  1. 　太陽光を集光して発電する集光型太陽光発電ユニットが複数個、筐体内に並んで構成された集光型太陽光発電モジュールであって、前記集光型太陽光発電ユニットの各々は、
    　入射する太陽光を集光する一次レンズと、
    　前記筐体の底面に設けられたフレキシブルプリント配線板と、
    　前記フレキシブルプリント配線板上の、太陽と正対したときの前記一次レンズの光軸と一致する位置に設けられ、集光した光について光電変換を行うセルと、
    　前記フレキシブルプリント配線板の導電パターンに接合され、前記セルを囲む枠体と、
    　前記枠体の内側にあって、前記セルを封止する光透過性の封止樹脂と、
    　を備えている集光型太陽光発電モジュール。     A plurality of concentrating solar power generation units for concentrating sunlight and generating power, a concentrating solar power generation module configured side by side in a housing, each of the concentrating solar power generation units is ,
    A primary lens that collects incoming sunlight,
    A flexible printed wiring board provided on the bottom surface of the housing,
    A cell on the flexible printed wiring board, which is provided at a position coinciding with the optical axis of the primary lens when facing the sun, and performs photoelectric conversion on collected light,
    A frame body joined to the conductive pattern of the flexible printed wiring board and surrounding the cell,
    A light-transmissive sealing resin that seals the cell, inside the frame body,
    Concentrating photovoltaic module equipped with.
  2. 　前記枠体の材質は、金属、並びに、熱伝導率が１［Ｗ／ｍ・Ｋ］以上のセラミック及び樹脂の、いずれかである請求項１に記載の集光型太陽光発電モジュール。 材質 The concentrating solar power generation module according to claim 1, wherein the material of the frame is any one of a metal, and a ceramic or a resin having a thermal conductivity of 1 [W / m · K] or more.
  3. 　前記光軸上で前記一次レンズと前記セルとの間にあって、前記セルとの間に隙間を形成するように前記枠体によって保持されている二次レンズ、を備える請求項１又は請求項２に記載の集光型太陽光発電モジュール。 3. The secondary lens according to claim 1, further comprising: a secondary lens that is provided between the primary lens and the cell on the optical axis and is held by the frame so as to form a gap between the primary lens and the cell. 4. The concentrating photovoltaic module as described.
  4. 　前記枠体は、筒状の支持基部と、当該支持基部の、光が入射する側の端部に形成されたフランジ状の遮蔽部とを備えている請求項１～請求項３のいずれか１項に記載の集光型太陽光発電モジュール。 The frame according to any one of claims 1 to 3, wherein the frame includes a cylindrical support base, and a flange-shaped shield formed at an end of the support base on the light incident side. A concentrating solar power generation module according to the item.
  5. 　前記枠体は、光の入射側に向かって開口が拡がっている形状である請求項１に記載の集光型太陽光発電モジュール。 The concentrator photovoltaic module according to claim 1, wherein the frame has a shape in which an opening is widened toward a light incident side.
  6. 　前記セルの底面側である一方の極が接合されている前記導電パターンに、前記枠体も接合されている請求項１～請求項５のいずれか１項に記載の集光型太陽光発電モジュール。 The concentrating solar power generation module according to any one of claims 1 to 5, wherein the frame is also joined to the conductive pattern to which one of the poles on the bottom side of the cell is joined. .
  7. 　請求項１の集光型太陽光発電モジュールを、太陽を追尾する架台上に複数個並べてアレイを構成した集光型太陽光発電装置。 A concentrator photovoltaic power generation device comprising a plurality of concentrator photovoltaic modules according to claim 1 arranged on a gantry for tracking the sun to form an array.
PCT/JP2019/024115 2018-06-27 2019-06-18 Concentrating solar power generation module and concentrating solar power generation device WO2020004148A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010091391A2 (en) * 2009-02-09 2010-08-12 Semprius, Inc. Concentrator-type photovoltaic (cpv) modules, receivers and sub-receivers and methods of forming same
JP2013187288A (en) * 2012-03-07 2013-09-19 Ngk Insulators Ltd Concentrator photovoltaic system and homogenizer thereof
US20130319507A1 (en) * 2012-05-29 2013-12-05 Essence Solar Solutions Ltd. Photovoltaic module assembly
US20140034127A1 (en) * 2012-07-31 2014-02-06 Semprius, Inc. Surface-mountable lens cradles and interconnection structures for concentrator-type photovoltaic devices
WO2016006573A1 (en) * 2014-07-10 2016-01-14 住友電気工業株式会社 Power generation circuit unit
WO2017022322A1 (en) * 2015-08-03 2017-02-09 住友電気工業株式会社 Concentrator photovoltaic unit, concentrator photovoltaic module, concentrator photovoltaic panel, and concentrator photovoltaic device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010091391A2 (en) * 2009-02-09 2010-08-12 Semprius, Inc. Concentrator-type photovoltaic (cpv) modules, receivers and sub-receivers and methods of forming same
JP2013187288A (en) * 2012-03-07 2013-09-19 Ngk Insulators Ltd Concentrator photovoltaic system and homogenizer thereof
US20130319507A1 (en) * 2012-05-29 2013-12-05 Essence Solar Solutions Ltd. Photovoltaic module assembly
US20140034127A1 (en) * 2012-07-31 2014-02-06 Semprius, Inc. Surface-mountable lens cradles and interconnection structures for concentrator-type photovoltaic devices
WO2016006573A1 (en) * 2014-07-10 2016-01-14 住友電気工業株式会社 Power generation circuit unit
WO2017022322A1 (en) * 2015-08-03 2017-02-09 住友電気工業株式会社 Concentrator photovoltaic unit, concentrator photovoltaic module, concentrator photovoltaic panel, and concentrator photovoltaic device

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