JPH023994A - Solar battery cell - Google Patents
Solar battery cellInfo
- Publication number
- JPH023994A JPH023994A JP63152352A JP15235288A JPH023994A JP H023994 A JPH023994 A JP H023994A JP 63152352 A JP63152352 A JP 63152352A JP 15235288 A JP15235288 A JP 15235288A JP H023994 A JPH023994 A JP H023994A
- Authority
- JP
- Japan
- Prior art keywords
- solar cell
- light
- face
- north
- incident
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 10
- 230000004907 flux Effects 0.000 abstract description 17
- 238000010248 power generation Methods 0.000 abstract description 8
- 239000011521 glass Substances 0.000 abstract description 4
- 239000011347 resin Substances 0.000 abstract description 4
- 229920005989 resin Polymers 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は太陽電池セルに関し、太陽電池素子の受光面に
対し低い入射角で光束が入射しても、この光束を受光面
に導いて高出力が得られろようにしたものである。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a solar cell, and even when a light flux is incident on the light receiving surface of a solar cell element at a low angle of incidence, the light flux is guided to the light receiving surface and is This is so that the output can be obtained.
〈従来の技術〉
太陽光発電システムに利用する太陽電池セルは屋外に設
置される。この種の太陽電池セルとしては、第４図及び
第５図に示すものが知られている。第４図に示す太陽電
池セル１は、基板２上に太陽電池゛素子３を載置し、太
陽電池素子３の受光面３ａを、透明なガラスまたは透明
な樹脂でなる窓材４で覆って構成している。窓材４の表
面は湾曲しており太陽光線を受光面３ａに集めるという
レンズ効果を発揮できるようにしており、太陽電池素子
３は受光するとＰ −ｎ接合部で光電変換して電気を発
生する。一方、第５図に示す太陽電池素子５では、基板
６上に太陽電池素子（Ｐ−ｎ接合を有し発電する素子）
７を載置するとともに受光面７ａに対向して凸レンズ８
を備えている。<Conventional technology> Solar cells used in solar power generation systems are installed outdoors. As this type of solar cell, those shown in FIGS. 4 and 5 are known. The solar cell 1 shown in FIG. 4 includes a solar cell element 3 placed on a substrate 2, and a light-receiving surface 3a of the solar cell element 3 covered with a window material 4 made of transparent glass or transparent resin. It consists of The surface of the window material 4 is curved so that it can exhibit a lens effect of concentrating sunlight on the light-receiving surface 3a, and when the solar cell element 3 receives light, it performs photoelectric conversion at the P-n junction and generates electricity. . On the other hand, in the solar cell element 5 shown in FIG.
7 is placed, and a convex lens 8 is placed opposite the light receiving surface 7a.
It is equipped with
上述した太陽電池セル１，５は、北半球では受光面３ａ
、７ａが南向きとなるようにして屋外に設置される。南
向きに設置したときには太陽からの光束り、 （図中点
線の矢印で示す）が受光面３ａ、７ａに確実に入射され
ろ。In the northern hemisphere, the solar cells 1 and 5 described above have light receiving surfaces 3a.
, 7a facing south. When installed facing south, the light flux from the sun (indicated by the dotted arrow in the figure) should be surely incident on the light receiving surfaces 3a and 7a.
もちろん、真南向きでなくても、つまり受光面３ａ、７
ａが太陽にずれなく正対していなくても、ある程度のず
れであれば、窓材４や凸レンズ８のレンズ効果により、
太陽の光束ＬＳを確実に取り込むことができ、良好な発
電を実行できろ。Of course, even if it is not facing due south, that is, the light receiving surfaces 3a and 7
Even if a is not directly facing the sun without deviation, if there is a certain deviation, the lens effect of the window material 4 and convex lens 8 will cause
Be able to reliably capture the sun's luminous flux LS and perform good power generation.
〈発明が解決しようとする課題〉
ところで、場合によっては上述したタイプの太陽電池セ
ル１，５であってもこれを北向きに設置せざるを得ない
ことがある。例えば、送電線に取り付けたセンサの発電
用としてこのセンサの異なる面に太陽電池セルを複数設
置した場合には、北向きになってしまう太陽電池セルが
でてくる。<Problems to be Solved by the Invention> Incidentally, in some cases, even the solar cells 1 and 5 of the above-mentioned type may have to be installed facing north. For example, if a plurality of solar cells are installed on different sides of a sensor attached to a power transmission line for power generation, some of the solar cells will face north.
第４図及び第５図に示すように、太陽電池セル１，５を
北向きに設置した場合には、受光面３ａ、７ａに対し、
太陽からの光束Ｌ１１（図中−点鎖線の矢印で示す）の
入射角がきわめて低くなり発電出力が小さくなる。なお
、窓材４の湾曲や凸レンズ８によるレンズ効果は、南向
きになっているときに集光度をより向上させろことを前
提として設計しているため、このように北向きとなって
入射角が低いときには、集光改善に寄与しない。As shown in FIGS. 4 and 5, when the solar cells 1 and 5 are installed facing north, the light receiving surfaces 3a and 7a are
The angle of incidence of the luminous flux L11 from the sun (indicated by the dotted chain arrow in the figure) becomes extremely low, and the power generation output becomes small. Note that the lens effect of the curvature of the window material 4 and the convex lens 8 is designed with the assumption that the light condensing power will be further improved when facing south. When it is low, it does not contribute to improving light collection.
もっとも第６図に示すように鏡９を併置して光束ＬＮを
反射させろようにすれば、入射量は増えるが、このよう
にすると鏡９が風や衝撃等により破損するおそれがあり
問題である。However, if a mirror 9 is placed side by side to reflect the light beam LN as shown in Fig. 6, the amount of incident light will increase, but this poses a problem as there is a risk that the mirror 9 will be damaged by wind, impact, etc. .
特に送電線用のセンサにｔＩａｉろものでは、強風によ
り大きな衝撃が発生するため現実的でない。In particular, it is not practical to use tIai type sensors for power transmission lines because strong winds generate large shocks.
本発明は、上記従来技術に鑑み、低入射角で光束が入射
しても、光束を太陽電池素子の受光面に確実に導くこと
のできる太陽電池セルを提供するものである。In view of the above-mentioned prior art, the present invention provides a solar cell that can reliably guide a luminous flux to a light-receiving surface of a solar cell element even if the luminous flux is incident at a low incident angle.
〈課題を解決するための手段〉
上記課題を解決する本発明の構成は、太陽電池素子の受
光面を透明な窓材で覆ってなる太陽電池セルにおいて、
受光面に対し低入射角でもって入射する光束を屈折させ
て屈折させた光束を受光面に到達させるというレンズ効
果を発揮する曲面を、窓材の表面に形成したことを特徴
とする。<Means for Solving the Problems> The configuration of the present invention for solving the above problems includes a solar cell in which the light-receiving surface of a solar cell element is covered with a transparent window material.
The window material is characterized in that a curved surface is formed on the surface of the window material to exhibit a lens effect of refracting a light beam incident on the light receiving surface at a low angle of incidence and allowing the refracted light beam to reach the light receiving surface.
く実 施 例〉 以下に本発明の実施例を図面に基づき詳細に説朔する。Example of implementation Embodiments of the present invention will be explained in detail below based on the drawings.
第１図は本発明の第１の実施例を示す。同図の太陽電池
セル１１は、基板１２上に太陽電池素子１３を載置し、
太陽電池素子１３の受光面１３ｍを、透明なガラスまた
は透明な樹脂でなる窓材１４で覆って構成している。FIG. 1 shows a first embodiment of the invention. A solar cell 11 in the figure has a solar cell element 13 placed on a substrate 12,
The light receiving surface 13m of the solar cell element 13 is covered with a window material 14 made of transparent glass or transparent resin.
窓材１４の高さＨは高くその表面は、局面１４ｍが湾曲
しており上面１４ｂが平面となっている。局面１４ａは
、第２図に太陽電池セル１１の上に仮想的に重ねて示す
凸レンズ２０ （図中点線で示す）の一部と同じ曲率を
有しており、レンズ効果を果す。局面１４ａのレンズ効
果とは、受光面１３ａに対する入射角の低い光束を屈折
させて屈折させた光束を受光面１３ａに到達させる効果
であり、高さＨが高いほどこのレンズ効果が太き（なり
集光性が向上する。The height H of the window material 14 is high, and its surface has a curved surface 14m and a flat upper surface 14b. The surface 14a has the same curvature as a part of a convex lens 20 (indicated by a dotted line in the figure) shown virtually superimposed on the solar cell 11 in FIG. 2, and exerts a lens effect. The lens effect of aspect 14a is the effect of refracting a light beam with a low incident angle to the light receiving surface 13a and allowing the refracted light beam to reach the light receiving surface 13a.The higher the height H is, the thicker the lens effect becomes. Improves light gathering ability.
この太陽電池セル１１を南向きに設置すると、太陽から
の光束し、゛（図中点線の矢印で示す）が上面１４ｂＪ
ｅ通って太陽電池素子１３の受光面１３ａに確実に入射
される。一方、太陽電池セル１１を北向きに設置すると
、太陽からの光束ＬＮ（図中−点鎖線の矢印で示す）は
受光面１３ａに対し低い入射角でもって入射する。この
光束ＬＮは周面１４ａで屈折させられ、屈折した光束Ｌ
Ｈが受光面１３ａに到達する。よって北向きに設置して
も太陽電池素子１３への入射光束を多くすることができ
、所要の発電出力を得ろことができる。特に窓材１４の
高さＨを高くしたものほど、北向きにしても大きな出力
が得られろ。When this solar cell 11 is installed facing south, the luminous flux from the sun is emitted, and the upper surface 14bJ (indicated by the dotted arrow in the figure)
e and is surely incident on the light receiving surface 13a of the solar cell element 13. On the other hand, when the solar cell 11 is installed facing north, the light beam LN from the sun (indicated by the dotted chain arrow in the figure) enters the light receiving surface 13a at a low incident angle. This luminous flux LN is refracted by the peripheral surface 14a, and the refracted luminous flux L
H reaches the light receiving surface 13a. Therefore, even if the solar cell element 13 is installed facing north, the amount of light incident on the solar cell element 13 can be increased, and the required power generation output can be obtained. In particular, the higher the height H of the window material 14, the greater the output can be obtained even when facing north.
第３図は本発明の第２の実施例を示す。同図の太陽電池
セル３１は、基板３２上に太陽電１１！１素子３３を載
置し、太陽電池素子３３の受光面３３ａを、透明なガラ
スまた（よ透明な樹脂でなる窓材３４で覆って構成して
いる。FIG. 3 shows a second embodiment of the invention. In the solar cell 31 shown in the figure, a solar cell 11!1 element 33 is placed on a substrate 32, and the light-receiving surface 33a of the solar cell element 33 is covered with a window material 34 made of transparent glass or (a more transparent resin). It covers and composes.
窓材３４の表面は湾曲しており、上部はど曲率が大きく
なるようにしている。The surface of the window material 34 is curved, and the upper part has a larger curvature.
この太陽電池セル３１では、南向きに設置して光束り、
が高入射角で入射されても、北向きに設置して光束ＬＮ
が低入射角で入射されても、光束Ｌｓ、ＬＮが窓材３４
で屈折させられて太陽電池素子３３の受光面３３ａに到
達し、発電をすることができろ。In this solar cell 31, it is installed facing south, and the luminous flux is
Even if the light is incident at a high angle of incidence, the luminous flux LN can be maintained by installing it facing north.
Even if the light is incident at a low angle of incidence, the light fluxes Ls and LN will not reach the window material 34.
The light is refracted by the beam, reaches the light-receiving surface 33a of the solar cell element 33, and can generate electricity.
〈発明の効果〉
以上実施例とともに具体的に説明したように本発明によ
れば、低入射角で入射した光束を太陽電池素子に導くよ
うに窓材に曲面を形成したため、太陽電池セルの設置方
向が南向きでなくても北向であっても、所要の発電出力
を得ることができる。<Effects of the Invention> As specifically explained above in conjunction with the embodiments, according to the present invention, a curved surface is formed on the window material so as to guide the light flux incident at a low incident angle to the solar cell element, so that installation of the solar cell is facilitated. Even if the direction is not southward or northward, the required power generation output can be obtained.
第１図及び第２図は本発明の第１の実施例を示す構成図
、第３図は本発明の第２の実施例を示す構成図、第４図
、第５図及び第６図は従来技術を示す構成図である。
図 面 中、
１１．３１は太陽電池セル、
１３．３３は太陽電池素子、
１３ａ、３３ａは受光面、
１４．３４は窓材である。
特 許 出 願 人
住友電気工業株式会社
代 理 人1 and 2 are block diagrams showing a first embodiment of the present invention, FIG. 3 is a block diagram showing a second embodiment of the present invention, and FIGS. 4, 5, and 6 are block diagrams showing a second embodiment of the present invention. FIG. 1 is a configuration diagram showing a conventional technique. In the drawing, 11.31 is a solar cell, 13.33 is a solar cell element, 13a and 33a are light receiving surfaces, and 14.34 is a window material. Patent application agent Sumitomo Electric Industries Co., Ltd.
Claims (1)
池セルにおいて、受光面に対し低入射角でもって入射す
る光束を屈折させて屈折させた光束を受光面に到達させ
るというレンズ効果を発揮する曲面を、窓材の表面に形
成したことを特徴とする太陽電池セル。In a solar cell in which the light-receiving surface of a solar cell element is covered with a transparent window material, a lens effect is created in which the light beam incident on the light-receiving surface is refracted at a low angle of incidence and the refracted light beam reaches the light-receiving surface. A solar cell characterized by having a curved surface formed on the surface of the window material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63152352A JPH023994A (en) | 1988-06-22 | 1988-06-22 | Solar battery cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63152352A JPH023994A (en) | 1988-06-22 | 1988-06-22 | Solar battery cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH023994A true JPH023994A (en) | 1990-01-09 |
Family
ID=15538665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63152352A Pending JPH023994A (en) | 1988-06-22 | 1988-06-22 | Solar battery cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH023994A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0538920U (en) * | 1991-10-28 | 1993-05-25 | シヤープ株式会社 | Semiconductor device having protective plate |
| JP2007027443A (en) * | 2005-07-15 | 2007-02-01 | Univ Of Electro-Communications | Photoelectric conversion device |
-
1988
- 1988-06-22 JP JP63152352A patent/JPH023994A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0538920U (en) * | 1991-10-28 | 1993-05-25 | シヤープ株式会社 | Semiconductor device having protective plate |
| JP2007027443A (en) * | 2005-07-15 | 2007-02-01 | Univ Of Electro-Communications | Photoelectric conversion device |
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