JP3679611B2 - Solar cell module - Google Patents

Solar cell module Download PDF

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Publication number
JP3679611B2
JP3679611B2 JP15743798A JP15743798A JP3679611B2 JP 3679611 B2 JP3679611 B2 JP 3679611B2 JP 15743798 A JP15743798 A JP 15743798A JP 15743798 A JP15743798 A JP 15743798A JP 3679611 B2 JP3679611 B2 JP 3679611B2
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Prior art keywords
double
sided
solar cell
cell module
terminal box
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JPH11354822A (en
Inventor
三郎 中島
健治 邑田
聡生 柳浦
宏 清水
浩 井上
晋行 辻野
茂樹 小松
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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    • 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
    • H02S40/30—Electrical components
    • H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
    • 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
    • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Photovoltaic Devices (AREA)

Description

【０００１】
【産業上の利用分野】
この発明は、両面入射型太陽電池モジュールに関し、特にたとえば両面入射型太陽電池セルの直列接続を容易に行うことができる両面入射型太陽電池モジュールに関する。
【０００２】
【従来の技術】
従来のこの種両面入射型太陽電池モジュール１は、図１５および図１６に示すように、複数枚の両面入射型太陽電池セル２，２および２を直列接続して構成する場合、太陽電池セル２の表面側の正極と、隣接する太陽電池セル２の裏面側の負極とを、２本の半田メッキ銅線３および３によりそれぞれ直列接続している。
【０００３】
【課題を解決するための手段】
この発明は、表面部材と、裏面部材と、表面側と裏面側の極性を交互に変えて表面部材と裏面部材との間に配置された３枚の両面入射型太陽電池セルと、を含み、前記３枚の両面入射型セルのうち隣接する太陽電池セルの表面どうしおよび裏面どうしは正極と負極が交互に配置され、隣接する両面入射型太陽電池セルの、正極と負極とが交互に配置された表面どうしおよび裏面どうしを電気的に直列接続する導電線を備える、太陽電池モジュールである。
【０００４】
【課題を解決するための手段】
この発明は、表面部材、裏面部材、表面側と裏面側の極性を交互に変えて表面部材と裏面部材との間に配置された複数枚の両面入射型太陽電池セル、および隣接する両面入射型太陽電池セルの表面どうしおよび裏面どうしを電気的に直列接続する複数の導電線とを備える、両面入射型太陽電池モジュールである。
【０００５】
【作用】
複数枚の両面入射型太陽電池セルを表面側と裏面側の極性を交互に変えて配置し、隣接する両面入射型太陽電池セルの表面どうしおよび裏面どうしを導電線により直列接続するので、太陽電池セルの表面側から隣接する太陽電池セルの裏面側へ導電線を通す必要がなく、また、隣接する太陽電池セル相互の間隙も小さくなる。
【０００６】
【発明の効果】
この発明によれば、導電線による太陽電池セルの直列接続作業も容易となりかつ大きな発電量を確保しながら太陽電池モジュールの面積を小さくすることができる。
この発明の上述の目的，その他の目的，特徴および利点は、図面を参照して行う以下の実施例の詳細な説明から一層明らかになろう。
【０００７】
【実施例】
図１および図２に主要部を示すこの実施例の両面入射型太陽電池モジュール１０は、たとえば、３枚の両面入射型太陽電池セル１２，１２および１２を含みかつこれらの太陽電池セル１２は表面側と裏面側の極性を交互に変えて絶縁を保つのに必要な最小の間隙を残して配置される。その結果、隣接する太陽電池セル１２，１２および１２の表面どうしおよび裏面どうしは正極と負極が交互に配置され、これらの太陽電池セルの表面どうしおよび裏面どうしをそれぞれ２本の導電線１４および１４を用いて電気的に直列接続している。
【０００８】
このように接続された両面入射型太陽電池セル１２，１２および１２を、図３に示すように、透明強化ガラスあるいは透光性樹脂等の透光性部材からなる表面部材１６および裏面部材１８の間においてＥＶＡなどの透光性封止材２０により封止して太陽電池モジュール１０を構成する。
図４および図５に示す他の実施例の両面入射型太陽電池モジュール１０は、標準サイズ（寸法：１０４ｍｍ×１０４ｍｍ）の両面入射型太陽電池セル１２ａを２３枚、標準サイズより寸法が大きいラージサイズ（寸法：１５０ｍｍ×１５０ｍｍ）の両面入射型太陽電池セル１２ｂを１枚、合計２４枚の太陽電池セルを含む。これらの太陽電池セル１２ａおよび１２ｂは、一列が８枚の横３列（８×３＝２４枚）で構成されかつ隣接する太陽電池セルは表面側と裏面側の極性を交互に変えて絶縁を保つのに必要な最小間隙を残して配置され、太陽電池セルの表面どうしおよび裏面どうしを図１および図２に示す実施例の場合と同様に導電線（図示されず）により直列接続している。
【０００９】
図４において、ラージサイズの太陽電池セル１２ｂは、左下のコーナー部（第３列左端）に配置され、この太陽電池セル１２ｂの裏面側に端子ボックス２２を取り付け、この端子ボックス２２からその内部で太陽電池セルの導電線と接続された２本の外部出力線３２および３２を引き出している。この両面入射型太陽電池モジュール１０の導電線による直列接続パターン２６は、図４に示す裏面側から見て図６のように全体が略Ｓ字状になっている。
【００１０】
この接続状態で、図３に示す実施例の場合と同様に、透光性の表面部材および裏面部材の間に透光性封止材を用いて上述の２４枚の両面入射型太陽電池セルが封止されて両面入射型太陽電池モジュール１０が形成される。また、この太陽電池モジュール１０の周縁部には、アルミ製保持枠２８が装着されている。
この両面入射型太陽電池モジュール１０を適当な場所に設置して使用する場合、太陽電池モジュール１０の表面側および裏面側から光が入射すると、裏面側に端子ボックス２２を取り付けたラージサイズの太陽電池セル１２ｂは、この端子ボックス２２の分だけ入射光が遮断される。しかし、太陽電池セル１２ｂの面積を標準サイズの太陽電池セル１２ａの面積より大きくしているためこの端子ボックス２２による入射光の減少分を補い、両面入射型太陽電池モジュール１０に供給される光量とこの光量に基づく発電量を確保できる。すなわち、ラージサイズの太陽電池セル１２ｂの面積は、標準サイズの太陽電池セル１２ａの面積と端子ボックス２２の面積との和に略等しくしている。そのため、ラージサイズの太陽電池セル１２ｂでの電流値と標準サイズの太陽電池セル１２ａとの電流値を略等しくすることができるので、直列接続した場合、いずれか低い方の電流値に律速されることがなく、最大の発電量を得ることができる。
【００１１】
図７に示す第３実施例の両面入射型太陽電池モジュール１０は、図４および図５に示す第２実施例におけるラージサイズの太陽電池セル１２ｂの部分も標準サイズの太陽電池セル１２ａとしたものである。そして、この太陽電池モジュール１０の周縁部に装着されるアルミ製保持枠２８の１辺内側を一部切欠いて端子ボックス用空間３０を形成する。この端子ボックス用空間３０内で太陽電池モジュール１０のリード線２４と外部出力線３２を接続し、端子ボックス用空間３０の開口部をカバー３４で閉塞している。そのために、両面入射型太陽モジュール１０の裏面側から入射する入射光は端子ボックス用空間３０により遮ぎられることはない。
【００１２】
したがって、この場合も図４および図５に示す実施例の場合と同様、端子ボックス用空間３０による光量と発電量の減少を防止することができる。
図８に示す第４実施例の両面入射型太陽電池モジュール１０は、複数枚の両面入射型太陽電池セルを導電線により直列接続して図３に示す実施例と同様に透光性の表面部材１６と裏面部材１８の間で透光性封止材２０により封止して構成される。この太陽電池モジュール１０においては、透光性封止材２０の端部より引き出されるリード線２４は、この封止材２０と表面部材１６および裏面部材１８との間にそれぞれ一端が固着された２枚の絶縁シート３６および３６の間に位置して取り付けられる。リード線２４および絶縁シート３６を取り付けた太陽電池モジュール１０の裏面側に取付板３８を設け、この取付板３８に端子ボックス２２を固定してその内部でリード線２４と外部出力線３２を接続している。
【００１３】
また、太陽電池モジュール１０の周縁部に装着されるアルミ製保持枠２８の一部を切欠き、この切欠部４０に端子ボックス２２を嵌め込むとともに端子ボックスの開口部をカバー３４で閉塞している。このカバー３４の上端部は太陽電池モジュール１０の表面側端部を覆う状態で取り付けられる。
なお、端子ボックス２２の内部にはダイオード４２が設けられているが、これらのダイオード４２は、図１０に示すように接続されており、太陽電池モジュール１０を構成する複数枚の太陽電池セル１２、１２…のうち、一部のセルが何らかの理由、たとえば木の葉や鳥類の糞等が太陽電池モジュールの表面に付着した場合、入射光が遮断されてこのセルを流れる電流が減少するためダイオードによりバイパスしてセルが焼損しないように保護する。
【００１４】
この場合も、両面入射型太陽電池モジュール１０の表面側に直接入射する入射光および裏面側より反射して入射する入射光は端子ボックス２２により遮られることはないので、光量は減少せず所望の発電量を確保することができる。
さらに、図１１〜図１４に示される第５実施例の両面入射型太陽電池モジュール１０は、この太陽電池モジュール１０を複数枚、たとえば２枚組み合わせて太陽電池パネルとした場合で、これらのモジュール１０の周縁部に装着されたアルミ製保持枠２８および２８はいずれも外側にＵ字状溝４４を有し、このＵ字状溝４４および４４を組み合わすことにより形成される上面開口の長溝部４６に横長端子ボックス２２を嵌め込んでいる。
【００１５】
そして、この横長端子ボックス２２内で太陽電池モジュール１０を構成するセルより引き出されたリード線２４、２４…と外部出力線３２をダイオード４２、４２…および支持リブ４８、４８…で保持される接続端子板５０、５０…を介して接続している。この場合の接続状態は、図１０に示されているブロック回路と同様であり、その説明は省略する。
【００１６】
なお、この長溝部４６は横長端子ボックス２２を配置収納した後、その開口面は図示されない適当なカバーで覆われる。
また、この実施例においては、リード線を太陽電池モジュールの側部より表側に取り出すことができ、その結果表配線が可能となり施工性が向上する。
【図面の簡単な説明】
【図１】この発明の一実施例を示す要部の図解図である。
【図２】図１における側面から見た場合の図解図である。
【図３】この発明の一実施例における要部を断面した図解図である。
【図４】この発明の他の実施例を示す表面側の図解図である。
【図５】図４の実施例における裏面側の図解図である。
【図６】図５における導電線による接続パターンを示す図解図である。
【図７】この発明の第３実施例を示す要部の図解図である。
【図８】この発明の第４実施例を示す要部の図解図である。
【図９】図８の実施例における要部分解せる図解図である。
【図１０】図８の実施例におけるブロック回路図である。
【図１１】この発明の第５実施例を示す図解図である。
【図１２】図１１において横長端子ボックスを配置したＡ−Ａ矢視の図解図である。
【図１３】図１１において横長端子ボックスを配置したＢ−Ｂ矢視の図解図である。
【図１４】図１１に示す第５実施例の要部の図解図である。
【図１５】従来例を示す要部の図解図である。
【図１６】図１５の側面側から見た場合の図解図である。
【符号の説明】
１０ …両面入射型太陽電池モジュール
１２ …両面入射型太陽電池セル
１２ａ …両面入射型太陽電池セル（標準サイズ）
１２ｂ …両面入射型太陽電池セル（ラージサイズ）
１４ …導電線
１６ …表面部材
１８ …裏面部材
２０ …封止材
２２ …端子ボックス
２４ …リード線
２８ …アルミ製保持枠
３２ …外部出力線[0001]
[Industrial application fields]
The present invention relates to a double-sided solar cell module, and more particularly to a double-sided solar cell module capable of easily connecting, for example, double-sided solar cells in series.
[0002]
[Prior art]
As shown in FIGS. 15 and 16, the conventional double-sided solar cell module 1 of this type is formed by connecting a plurality of double-sided solar cells 2, 2 and 2 in series. Are connected in series by two solder-plated copper wires 3 and 3, respectively.
[0003]
[Means for Solving the Problems]
This invention includes a surface member, and back member, and three double-sided incidence type solar cells arranged between the surface member and the back member by changing the polarity of the surface side and back side alternately, and The positive and negative electrodes are alternately arranged between the front and back surfaces of adjacent solar cells among the three double-sided incident cells, and the positive and negative electrodes of the adjacent double-sided incident solar cells are alternately arranged. surface each other and provided with electrically conductive wires to connect in series the back side each other, a solar cell module.
[0004]
[Means for Solving the Problems]
The present invention relates to a front surface member, a back surface member, a plurality of double-sided incident solar cells disposed between the front surface member and the back surface member by alternately changing the polarity of the front surface side and the back surface side, and the adjacent double-sided incident type It is a double-sided incident solar cell module comprising a plurality of conductive wires that electrically connect the front and back surfaces of solar cells in series.
[0005]
[Action]
A plurality of double-sided solar cells are arranged with alternating polarity on the front side and back side, and the front and back surfaces of adjacent double-sided solar cells are connected in series by conductive wires. It is not necessary to pass a conductive line from the front side of the cell to the back side of the adjacent solar cell, and the gap between adjacent solar cells is reduced.
[0006]
【The invention's effect】
According to this invention, the series connection operation of the solar cells by the conductive wire is facilitated, and the area of the solar cell module can be reduced while securing a large amount of power generation.
The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.
[0007]
【Example】
A double-sided solar cell module 10 of this embodiment whose main part is shown in FIGS. 1 and 2 includes, for example, three double-sided solar cells 12, 12, and 12, and these solar cells 12 are on the surface. It is arranged with the minimum gap necessary for maintaining insulation by alternately changing the polarity on the side and the back side. As a result, the positive and negative electrodes are alternately arranged between the front and back surfaces of the adjacent solar cells 12, 12 and 12, and the two conductive lines 14 and 14 are connected to the front and back surfaces of these solar cells, respectively. Are electrically connected in series.
[0008]
As shown in FIG. 3, the double-sided solar cells 12, 12 and 12 connected in this way are made of a front surface member 16 and a back surface member 18 made of a translucent member such as transparent tempered glass or translucent resin. The solar cell module 10 is configured by sealing with a light-transmitting sealing material 20 such as EVA.
The double-sided solar cell module 10 of another embodiment shown in FIG. 4 and FIG. 5 is a large size having 23 double-sided solar cells 12a of standard size (dimensions: 104 mm × 104 mm) and larger in size than the standard size. A single double-sided solar cell 12b (size: 150 mm × 150 mm) is included, including a total of 24 solar cells. Each of these solar cells 12a and 12b is composed of eight horizontal three rows (8 × 3 = 24) and adjacent solar cells are insulated by alternately changing the polarity on the front side and the back side. It is arranged leaving a minimum gap necessary for maintaining, and the front and back surfaces of the solar cells are connected in series by conductive lines (not shown) as in the embodiment shown in FIGS. .
[0009]
In FIG. 4, the large-sized solar battery cell 12 b is arranged at the lower left corner (third row, left end), and a terminal box 22 is attached to the back side of the solar battery cell 12 b, and the terminal box 22 is connected to the inside thereof Two external output lines 32 and 32 connected to the conductive lines of the solar cells are drawn out. The entire series connection pattern 26 of the conductive wires of the double-sided solar cell module 10 is substantially S-shaped as shown in FIG. 6 when viewed from the back side shown in FIG.
[0010]
In this connected state, as in the case of the embodiment shown in FIG. 3, the above-described 24 double-sided incident solar cells are formed using a light-transmitting sealing material between the light-transmitting front surface member and the back surface member. The double-sided incident solar cell module 10 is formed by sealing. An aluminum holding frame 28 is attached to the peripheral edge of the solar cell module 10.
When the double-sided solar cell module 10 is installed and used at an appropriate location, when light is incident from the front surface side and the back surface side of the solar cell module 10, a large size solar cell having a terminal box 22 attached to the back surface side. In the cell 12b, incident light is blocked by the amount of the terminal box 22. However, since the area of the solar battery cell 12b is larger than that of the standard-sized solar battery cell 12a, the amount of light supplied to the double-sided incident solar battery module 10 is compensated for by the decrease in incident light by the terminal box 22. The amount of power generation based on this amount of light can be secured. That is, the area of the large size solar battery cell 12 b is substantially equal to the sum of the area of the standard size solar battery cell 12 a and the area of the terminal box 22. Therefore, the current value in the large-sized solar battery cell 12b and the current value in the standard-sized solar battery cell 12a can be made substantially equal, so that when connected in series, the current value is controlled to the lower current value. The maximum power generation amount can be obtained.
[0011]
In the double-sided solar cell module 10 of the third embodiment shown in FIG. 7, the large-sized solar cell 12b in the second embodiment shown in FIGS. 4 and 5 is also a standard-sized solar cell 12a. It is. Then, a terminal box space 30 is formed by partially notching one inner side of the aluminum holding frame 28 attached to the peripheral edge of the solar cell module 10. The lead wire 24 and the external output line 32 of the solar cell module 10 are connected in the terminal box space 30, and the opening of the terminal box space 30 is closed with a cover 34. Therefore, incident light incident from the back side of the double-sided incident solar module 10 is not blocked by the terminal box space 30.
[0012]
Accordingly, in this case as well, as in the case of the embodiment shown in FIGS. 4 and 5, it is possible to prevent the light amount and the power generation amount from being reduced by the terminal box space 30.
The double-sided incident solar cell module 10 of the fourth embodiment shown in FIG. 8 is a translucent surface member similar to the embodiment shown in FIG. 3 in which a plurality of double-sided solar cells are connected in series by conductive wires. 16 and the back surface member 18 are configured to be sealed with a translucent sealing material 20. In this solar cell module 10, the lead wires 24 drawn out from the end portions of the light-transmitting sealing material 20 have one end fixed between the sealing material 20 and the front surface member 16 and the back surface member 18. A sheet of insulating sheets 36 and 36 are located and attached. A mounting plate 38 is provided on the back surface side of the solar cell module 10 to which the lead wire 24 and the insulating sheet 36 are attached. The terminal box 22 is fixed to the mounting plate 38 and the lead wire 24 and the external output wire 32 are connected therein. ing.
[0013]
Further, a part of the aluminum holding frame 28 attached to the peripheral edge of the solar cell module 10 is cut out, the terminal box 22 is fitted into the cutout 40 and the opening of the terminal box is closed with the cover 34. . The upper end portion of the cover 34 is attached so as to cover the end portion on the surface side of the solar cell module 10.
In addition, although the diode 42 is provided in the inside of the terminal box 22, these diodes 42 are connected as shown in FIG. 10, and a plurality of solar cells 12 constituting the solar cell module 10, 12 ... Some of the cells are bypassed by a diode for some reason, for example, when leaves or bird droppings adhere to the surface of the solar cell module, the incident light is blocked and the current flowing through this cell decreases. Protect the cell from burning.
[0014]
Also in this case, incident light that is directly incident on the front surface side of the double-sided solar cell module 10 and incident light that is reflected and incident from the back surface side are not blocked by the terminal box 22, so the amount of light does not decrease and is desired. The amount of power generation can be secured.
Furthermore, the double-sided incident solar cell module 10 of the fifth embodiment shown in FIGS. 11 to 14 is a case where a plurality of, for example, two, solar cell modules 10 are combined to form a solar cell panel. Each of the aluminum holding frames 28 and 28 mounted on the peripheral edge portion of the frame has a U-shaped groove 44 on the outer side, and a long groove portion 46 having an upper surface opening formed by combining the U-shaped grooves 44 and 44. A horizontally long terminal box 22 is fitted in the.
[0015]
And the lead wires 24, 24... And the external output wires 32 drawn out from the cells constituting the solar cell module 10 in the horizontally long terminal box 22 are held by the diodes 42, 42... And the support ribs 48, 48. It connects via the terminal boards 50, 50 .... The connection state in this case is the same as that of the block circuit shown in FIG. 10, and the description thereof is omitted.
[0016]
The long groove 46 is covered with a suitable cover (not shown) after the horizontally long terminal box 22 is disposed and stored.
Further, in this embodiment, the lead wire can be taken out from the side of the solar cell module to the front side, and as a result, the front wiring is possible and the workability is improved.
[Brief description of the drawings]
FIG. 1 is an illustrative view of a principal part showing one embodiment of the present invention.
FIG. 2 is an illustrative view when viewed from a side surface in FIG. 1;
FIG. 3 is an illustrative view showing a cross section of a main part in one embodiment of the present invention;
FIG. 4 is an illustrative view of the front side showing another embodiment of the present invention.
FIG. 5 is an illustrative view of the back side in the embodiment of FIG. 4;
6 is an illustrative view showing a connection pattern by conductive lines in FIG. 5; FIG.
FIG. 7 is an illustrative view showing a principal part of a third embodiment of the invention.
FIG. 8 is an illustrative view showing a principal part of a fourth embodiment of the invention.
9 is an illustrative view showing an essential part of the embodiment of FIG. 8 in an exploded manner.
FIG. 10 is a block circuit diagram in the embodiment of FIG. 8;
FIG. 11 is an illustrative view showing a fifth embodiment of the present invention;
12 is an illustrative view taken along arrow AA in which a horizontally long terminal box is arranged in FIG. 11. FIG.
13 is an illustrative view taken along arrow B-B in which a horizontally long terminal box is arranged in FIG. 11;
14 is an illustrative view showing a main part of the fifth embodiment shown in FIG. 11. FIG.
FIG. 15 is an illustrative view showing a principal part of a conventional example.
16 is an illustrative view when viewed from a side surface of FIG. 15;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Double-sided incident type solar cell module 12 ... Double-sided incident type solar cell 12a ... Double-sided incident type solar cell (standard size)
12b ... Double-sided solar cell (large size)
DESCRIPTION OF SYMBOLS 14 ... Conductive wire 16 ... Front surface member 18 ... Back surface member 20 ... Sealing material 22 ... Terminal box 24 ... Lead wire 28 ... Aluminum holding frame
32 ... External output line

Claims (5)

表面部材と、
裏面部材と、
表面側と裏面側の極性を交互に変えて前記表面部材と前記裏面部材との間に配置された３枚の両面入射型太陽電池セルと、を含み、
前記３枚の両面入射型セルのうち隣接する太陽電池セルの表面どうしおよび裏面どうしは正極と負極が交互に配置され、
前記隣接する両面入射型太陽電池セルの、正極と負極とが交互に配置された表面どうしおよび裏面どうしを電気的に直列接続する導電線を備える、太陽電池モジュール。 And the surface member,
And the back member,
Including three double-sided incident solar cells disposed between the front surface member and the back surface member by alternately changing the polarity of the front surface side and the back surface side,
The positive and negative electrodes are alternately arranged between the front and back surfaces of adjacent solar cells among the three double-sided incident cells,
It said adjacent two-sided incidence type solar cells, electrically comprise a conductive wire to connect in series to one other positive electrode and the negative electrode and are arranged alternately surface and the back with each other, solar cell module. 前記３枚の両面入射型セルを含む複数枚の両面入射型太陽電池セルを備え、
前記複数枚の両面入射型太陽電池セルのうち所定のセルに対応する位置において前記裏面部材の背面側に取り付けられた電力取出用の端子ボックスをさらに備え、
前記所定のセルが他のセルより大きい面積を有する、請求項１記載の太陽電池モジュール。 A plurality of double-sided solar cells including the three double-sided incident cells,
A power extraction terminal box attached to the back side of the back member at a position corresponding to a predetermined cell of the plurality of double-sided solar cells,
Said predetermined cell has a larger area than the other cells, solar cell module according to claim 1. 前記所定のセルの面積は、前記他のセルの面積と前記端子ボックスの面積との和に略等しい、請求項２記載の太陽電池モジュール。The area of a given cell is substantially equal to the sum of the areas of the terminal box and the area of the other cell, solar cell module according to claim 2, wherein. 前記３枚の両面入射型太陽電池セルを前記表面部材と前記裏面部材との間に封止されてなる封止体、
前記封止体の周縁部に装着された保持枠、および
前記保持枠に設けられた電力取出用の端子ボックスをさらに備える、請求項１記載の太陽電池モジュール。A sealed body in which the three double-sided incident solar cells are sealed between the front surface member and the back surface member;
The sealing body further comprising, solar cell module according to claim 1 mounted retention frame to the peripheral portion, and a terminal box for power take-out provided in the holding frame. 前記保持枠に切欠部を形成し、前記切欠部に前記端子ボックスを取り付ける、請求項４記載の太陽電池モジュール。A notch formed in the holding frame, attaching the terminal box to said notch, claim 4 solar cell module according.
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