JPH11177117A - Solar battery module - Google Patents
Solar battery moduleInfo
- Publication number
- JPH11177117A JPH11177117A JP9362365A JP36236597A JPH11177117A JP H11177117 A JPH11177117 A JP H11177117A JP 9362365 A JP9362365 A JP 9362365A JP 36236597 A JP36236597 A JP 36236597A JP H11177117 A JPH11177117 A JP H11177117A
- Authority
- JP
- Japan
- Prior art keywords
- solar cell
- cell module
- wiring material
- wiring member
- solar battery
- 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
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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、太陽電池モジュー
ル内部における複数の隣接する太陽電池セルの電極間又
は該太陽電池セルの電極と内部回路を接続する配線材に
間する。[0001] The present invention relates to a space between electrodes of a plurality of adjacent solar cells in a solar cell module or a wiring member connecting an electrode of the solar cell and an internal circuit.
【０００２】[0002]
【従来の技術】従来、一般的な太陽電池モジュール内の
配線方法としては、図４乃至図５に示すように、複数の
隣接する太陽電池セル２間又は太陽電池セル１と内部回
路（図示せず）とを配線材３により相互に接続する場
合、その配線材３として図３に示すような平板状又は棒
状の金属配線材を用いて半田付けにより相互接続を行う
ことにより太陽電池モジュール１としての回路を構成し
ていた。2. Description of the Related Art Conventionally, as a wiring method in a general solar cell module, as shown in FIGS. 4 and 5, between a plurality of adjacent solar cells 2 or between a solar cell 1 and an internal circuit (not shown). 3) are connected to each other by a wiring member 3, and a flat or rod-shaped metal wiring member as shown in FIG. Circuit.
【０００３】このように構成された従来の太陽電池モジ
ュール１は、ガラス又は金属等から形成され、支持強度
の大きな基材（又はケース）４に硬化型充填樹脂（シリ
コーン、ＥＶＡ等）を用いて封止し、モジュール化して
いた。しかし、近年の太陽電池の需要により、前記基材
（又はケース）４の材質が多様化し、軽量化等の要望か
ら図１に示すような平板状又は成形品のプラスチック等
の透明樹脂基材（又はケース）４又は可撓性（たわむ性
質を有する）基材が用いられた太陽電池モジュールが製
造されるようになった。[0003] The conventional solar cell module 1 constructed as described above is made of glass or metal, and is made of a base material (or case) 4 having high support strength by using a curable filling resin (silicone, EVA, etc.). It was sealed and modularized. However, due to recent demand for solar cells, the material of the substrate (or case) 4 has been diversified, and a transparent resin substrate such as a flat or molded plastic as shown in FIG. Or a case) 4 or a solar cell module using a flexible (having flexible) base material has been manufactured.
【０００４】太陽電池モジュールは厳しい自然環境下で
使用されるため、急激又は大きな温度変化や外圧の繰り
返しに対しても長期間安定した特性を有することが要求
される。しかし、前述のような基材（又はケース）４と
して、図４及び図５に示すようなガラス、金属等を用い
るもので外形寸法の大きなもの又は図１に示すようなプ
ラスチック等の樹脂を使用することにより、後述のよう
な従来にはない問題が発生するようになった。それは、
図１に示すような基材（又はケース）４となる材料と、
太陽電池セル２又は金属配線材３との間に熱膨張率の大
きな差があるため、急激又は大きな温度変化の繰り返し
により、比較的柔軟性のある電極間の接続部分に繰り返
しストレスが集中して、接合部の外れ又は配線材の断線
等の故障が発生する。[0004] Since solar cell modules are used in severe natural environments, they are required to have stable characteristics for a long period even with rapid or large temperature changes and repeated external pressures. However, as the base material (or case) 4 as described above, a material using glass or metal as shown in FIGS. 4 and 5 and having a large outer dimension or a resin such as plastic as shown in FIG. 1 is used. By doing so, a problem which has not existed in the past as described below has come to occur. that is,
A material that becomes a base material (or case) 4 as shown in FIG.
Since there is a large difference in the coefficient of thermal expansion between the photovoltaic cell 2 and the metal wiring material 3, stress is repeatedly concentrated on the connection portion between the relatively flexible electrodes due to repeated rapid or large temperature changes. In such a case, a failure such as a detachment of a joint or disconnection of a wiring member occurs.
【０００５】また、可撓性基材を用いた場合は、太陽電
池モジュール１が繰り返し外圧を受けると、太陽電池セ
ル２に比べて従来の金属配線材３は曲がり易いため、前
記の場合と同様に接合部の外れ又は配線材の断線等の故
障が発生する。Further, when a flexible base material is used, when the solar cell module 1 is repeatedly subjected to an external pressure, the conventional metal wiring member 3 is more easily bent than the solar cell 2, and thus the same as in the above case. In such a case, a failure such as disconnection of a joint or disconnection of a wiring member occurs.
【０００６】また、外形寸法が大型の太陽電池モジュー
ル程、前記基材（又はケース）４となる材料と、太陽電
池セル２又は金属配線材３との間に熱膨張率の大きな差
により、前記基材（又はケース）４と、太陽電池セル２
又は金属配線材３との間のずれの量が大きくなるので、
前記接合部の外れ又は配線材の断線等の故障が小型のも
のより多く発生することから、大型の太陽電池モジュー
ルの製造は困難であった。The larger the external dimensions of a solar cell module, the larger the difference in the coefficient of thermal expansion between the material used as the base material (or case) 4 and the solar cell 2 or the metal wiring member 3. Base material (or case) 4 and solar cell 2
Alternatively, the amount of deviation from the metal wiring material 3 increases,
It is difficult to manufacture a large-sized solar cell module because failures such as disconnection of the junction or disconnection of wiring material occur more frequently than small ones.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、前記基材
（又はケース）となる材料と、太陽電池セル又は金属配
線材との間の熱膨張率に大きな差があり、急激又は大き
な温度変化の繰り返しにより、比較的柔軟性のある電極
間の接続部分に繰り返しストレスが集中して、接合部の
外れ又は配線材の断線等の故障が発生するという問題点
を解消するためになされたもので、本発明の目的は、前
記接合部の外れ又は配線材の断線等の故障の発生を防止
すると共に、大型の太陽電池モジュールの製造を可能に
することである。SUMMARY OF THE INVENTION According to the present invention, there is a large difference in the coefficient of thermal expansion between the material serving as the base material (or case) and the solar cell or metal wiring material, and a rapid or large temperature change occurs. This is done to solve the problem that the stress is repeatedly concentrated on the connection portion between the relatively flexible electrodes due to the repetition of the above, and the failure such as the disconnection of the joint or the disconnection of the wiring material occurs. SUMMARY OF THE INVENTION It is an object of the present invention to prevent a failure such as disconnection of the joint or disconnection of a wiring member, and to enable manufacture of a large-sized solar cell module.
【０００８】[0008]
【課題を解決するための手段】本発明は、複数の隣接す
る太陽電池セルの電極間又は該太陽電池セルの電極と内
部回路が配線材により接続されている太陽電池モジュー
ルにおいて、前記配線材として複数の細い導線を撚り合
わせたか又は編んだ（織った）導線を用いた太陽電池モ
ジュールである。According to the present invention, there is provided a solar cell module in which electrodes between a plurality of adjacent solar cells or between electrodes of the solar cells and an internal circuit are connected by wiring members. It is a solar cell module using a conductive wire in which a plurality of fine conductive wires are twisted or knitted (woven).
【０００９】本発明は、前記配線材として複数の細い導
線を網状に形成した網状導線を用いた太陽電池モジュー
ルである。The present invention is a solar cell module using a reticulated conductor in which a plurality of fine conductors are formed in a reticulated shape as the wiring material.
【００１０】本発明は、前記配線材が扁平状である太陽
電池モジュールである。The present invention is a solar cell module, wherein the wiring member is flat.
【００１１】本発明は、前記配線材が柔軟性及び伸縮性
を有する太陽電池モジュールである。The present invention is a solar cell module, wherein the wiring member has flexibility and elasticity.
【００１２】本発明は、前記配線材の接続箇所に予め半
田を溶着させた太陽電池モジュールである。According to the present invention, there is provided a solar cell module in which solder is previously welded to a connection portion of the wiring member.
【００１３】本発明は、前記配線材を導電性接着剤によ
り接続した太陽電池モジュールである。The present invention is a solar cell module in which the wiring members are connected by a conductive adhesive.
【００１４】[0014]
【発明の実施の形態】以下、本発明の実施の形態につい
て説明する。本発明は、前記基材（又はケース）となる
材料と、太陽電池セル又は金属配線材との間の大きな熱
膨張率の差により、急激又は大きな温度変化の繰り返し
があった場合、比較的柔軟性のある電極間の接続部分に
繰り返しストレスが集中して、接合部の外れ又は配線材
の断線等の故障が発生するという問題点を解消するた
め、複数の隣接する太陽電池セルの電極間又は該太陽電
池セルの電極と内部回路が配線材により接続されている
太陽電池モジュールにおける、前記配線材の部分を複数
の細い導線を撚り合わせもの、編んだ（織った）もの又
は網状のもの等を用いることにより、前記接合部の外れ
又は配線材の断線等の故障の発生を防止すると共に、大
型の太陽電池モジュールの製造を可能にする。Embodiments of the present invention will be described below. The present invention is relatively flexible when a rapid or large temperature change is repeated due to a large difference in thermal expansion coefficient between the material serving as the base material (or case) and the solar cell or the metal wiring material. In order to solve the problem that the stress is repeatedly concentrated on the connection portion between the electrodes having the property and the failure such as the disconnection of the joint portion or the disconnection of the wiring material occurs, between the electrodes of a plurality of adjacent solar cells or In the solar cell module in which the electrode of the solar cell and the internal circuit are connected by a wiring member, the wiring member portion is formed by twisting, knitting (woven) or net-like one of a plurality of thin conductive wires. By using this, it is possible to prevent the occurrence of a failure such as the disconnection of the bonding portion or the disconnection of the wiring member, and to manufacture a large-sized solar cell module.
【００１５】前記配線材としては、前述のように柔軟で
且つ伸縮性を有すると共に、接続し易くするため断面形
状が扁平ものが好ましい。As described above, the wiring material is preferably flexible and elastic, and has a flat cross-sectional shape in order to facilitate connection.
【００１６】[0016]
【実施例】本発明の実施例を図面を用いて説明する。図
１に示すように、太陽電池モジュール１は複数の隣接す
る太陽電池セル２の電極間又は該太陽電池セル２の電極
と内部回路（図示せず）が配線材３により接続されてい
る。前記配線材３として、図３に示すような従来用いら
れていた扁平又は棒状の金属配線材３ｂの代わりに、図
２に示すような複数の細い導線を撚り合わせたか又は織
った（編んだ）、柔軟で且つ伸縮性を有する導線３ａを
用いる。この配線材３としては前述のものの他に網状の
もの等でもよい。更に、半田等により接着指せる場合、
その接着性を考慮して、その断面形状は、扁平状のもの
が好ましい。Embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, in a solar cell module 1, an electrode of a plurality of adjacent solar cells 2 or an electrode of the solar cell 2 and an internal circuit (not shown) are connected by a wiring member 3. As the wiring member 3, a plurality of thin conductive wires as shown in FIG. 2 are twisted or woven (woven) instead of the conventionally used flat or bar-shaped metal wiring material 3b as shown in FIG. A flexible and stretchable conductive wire 3a is used. The wiring member 3 may be a net-like material in addition to the above-mentioned ones. In addition, if you can glue it with solder,
In consideration of the adhesiveness, the cross-sectional shape is preferably flat.
【００１７】また、前記複数の細い導線を撚り合わせた
か又は織った（編んだ）、柔軟で且つ伸縮性を有する導
線は、半田等で接続（接着）する場合、接続（接着）性
の点で多少難点があるため、半田付けにより接続する場
合は、その導線の接続箇所に予め半田を溶着させたもの
を用いることにより、接続を迅速且つ確実に行うことが
できる。他の接続方法として、半田の代わりに導電性接
着剤を用いることもできる。In addition, when the plurality of thin conductive wires are twisted or woven (knitted), and the flexible and stretchable conductive wires are connected (adhered) with solder or the like, the connection (adhesion) properties are reduced. Since there are some difficulties, when connection is made by soldering, the connection can be made quickly and reliably by using solder that has been previously welded to the connection portion of the conductive wire. As another connection method, a conductive adhesive can be used instead of the solder.
【００１８】次に、本発明の太陽電池モジュールと従来
の太陽電池モジュールとの熱膨張による伸び縮みに起因
する誤動作（信頼性）試験の結果を以下に示す。太陽電
池モジュール１の基材（又はケース）４は透明アクリル
樹脂を使用し、透明充填剤５は硬化型透明シリコーンを
使用した。Next, results of a malfunction (reliability) test due to expansion and contraction due to thermal expansion between the solar cell module of the present invention and the conventional solar cell module will be described below. The substrate (or case) 4 of the solar cell module 1 used a transparent acrylic resin, and the transparent filler 5 used a curable transparent silicone.
【００１９】また、太陽電池モジュールの配線材は、本
発明は、０．１ｍｍΦのニッケルメッキ付き銅線を４８
本編んだもの、従来のものは、幅２．１ｍｍ、厚さ０．
１ｍｍの銅箔の表面を半田コートしたものである。Further, according to the present invention, the wiring material of the solar cell module is a copper wire with a nickel plating of 0.1 mmΦ.
The main knitted one and the conventional one have a width of 2.1 mm and a thickness of 0.1 mm.
The surface of a 1 mm copper foil is coated with solder.
【００２０】試験方法は、温度変化による適正を調べる
際に行われる、温度サイクル試験を採用し、−４０℃と
９０℃との間を温度パターンに従って繰り返す繰り返し
試験を実施した。As a test method, a temperature cycle test, which is performed when checking adequacy due to a temperature change, was adopted, and a repetitive test between -40 ° C and 90 ° C was repeated according to a temperature pattern.
【００２１】その結果、従来のものは、５０サイクル程
度で半田付け箇所の剥がれ、配線剤の疲労による断線等
が原因の出力不良が発生したのに対して、本発明のもの
は、２００サイクルを超えた時点でも異常が認められな
かった。As a result, in the conventional device, the soldering portion was peeled off in about 50 cycles, and an output failure occurred due to disconnection or the like due to fatigue of the wiring agent. No abnormalities were observed at the time of exceeding.
【００２２】このように、配線材として、伸縮性及び柔
軟性のある、細い導線の集合線（編線、撚り線又は網状
の線）を使用することにより、基材（又はケース）の伸
び縮みによるストレスを緩和することが立証された。As described above, the use of a gathering wire (a knitted wire, a stranded wire, or a mesh wire) of a thin conductive wire having elasticity and flexibility as a wiring material allows the base material (or case) to expand and contract. Has been proven to reduce stress caused by
【００２３】なお、太陽電池セルとして、実施例におい
ては、Ｓｉ単結晶、多結晶を一例として示したが、ＣＩ
Ｓ等の薄膜半導体太陽電池セル又はアモルファス太陽電
池セル等の他の太陽電池セルに適用することができる。In the embodiments, single-crystal Si and polycrystal are shown as examples of solar cells.
The present invention can be applied to other solar cells such as a thin film semiconductor solar cell such as S or an amorphous solar cell.
【００２４】[0024]
【発明の効果】本発明は、太陽電池モジュールの内部回
路又は太陽電池セル相互間の接続手段である配線材の部
分を従来の平板状又は棒状の配線材の代わりに、複数の
細い導線を撚り合わせもの、編んだ（織った）もの又は
網状のものを用いることにより、従来の製作工程又は新
規開発の特殊な部品に変えることなく、配線材と太陽電
池セルの電極又は内部回路との接合部の外れ又は配線材
の断線等の熱的機械的な故障を防止して信頼性を向上す
ると共に、太陽電池モジュールを大型化することができ
る。According to the present invention, a plurality of thin conductive wires are twisted in place of a conventional flat or rod-shaped wiring member in a portion of the wiring member which is a connection means between the internal circuit of the solar cell module or the solar cells. By using a combination, knitted (woven) or net-like material, the joint between the wiring material and the electrode or internal circuit of the solar cell can be made without changing the conventional manufacturing process or newly developed special parts. In addition, it is possible to prevent a thermal mechanical failure such as disconnection of the wiring member or disconnection of the wiring member, thereby improving the reliability and increasing the size of the solar cell module.
【図１】本発明の太陽電池モジュールの概略構成を示す
（ａ）平面図（ｂ）断面図である。FIG. 1A is a plan view showing a schematic configuration of a solar cell module of the present invention, and FIG.
【図２】本発明の太陽電池モジュールにおける配線材の
構造を示す図である。FIG. 2 is a diagram showing a structure of a wiring member in the solar cell module of the present invention.
【図３】従来の太陽電池モジュールにおける配線材の構
造を示す図である。FIG. 3 is a diagram showing a structure of a wiring member in a conventional solar cell module.
【図４】従来の太陽電池モジュールの概略構成を示す
（ａ）平面図（ｂ）拡大断面図である。4A is a plan view showing a schematic configuration of a conventional solar cell module, and FIG.
【図５】従来の太陽電池モジュールの概略構成を示す
（ａ）平面図（ｂ）拡大断面図である。5A is a plan view showing a schematic configuration of a conventional solar cell module, and FIG.
１ 太陽電池モジュール ２ 太陽電池セル ３ 配線材 ３ａ 配線材（本発明のもの） ３ｂ 配線材（従来のもの） ４ 透明樹脂基材（又はケース） ４ａ ガラス又は金属（基材） ５ 透明充填剤 DESCRIPTION OF SYMBOLS 1 Solar cell module 2 Solar cell 3 Wiring material 3a Wiring material (of the present invention) 3b Wiring material (conventional) 4 Transparent resin base material (or case) 4a Glass or metal (base material) 5 Transparent filler
Claims (6)
は該太陽電池セルの電極と内部回路が配線材により接続
されている太陽電池モジュールにおいて、前記配線材と
して複数の細い導線を撚り合わせたか又は編んだ（織っ
た）導線を用いることを特徴とする太陽電池モジュー
ル。1. In a solar cell module in which electrodes between a plurality of adjacent solar cells or between an electrode of the solar cell and an internal circuit are connected by a wiring member, a plurality of thin conductive wires are twisted as the wiring member. Alternatively, a solar cell module using a woven (woven) conductive wire.
に形成した網状導線を用いることを特徴とする太陽電池
モジュール。2. A solar cell module, wherein a reticulated wire in which a plurality of thin conductive wires are formed in a reticulated shape is used as the wiring member.
する前記請求項１又は２記載の太陽電池モジュール。3. The solar cell module according to claim 1, wherein the wiring member has a flat shape.
ことを特徴とする前記請求項１又は２記載の太陽電池モ
ジュール。4. The solar cell module according to claim 1, wherein the wiring member has elasticity and flexibility.
させたことを特徴とする前記請求項１、２、３又は４記
載の太陽電池モジュール。5. The solar cell module according to claim 1, wherein solder is previously welded to a connection portion of the wiring member.
たことを特徴とする前記請求項前記請求項１、２、３又
は４記載の太陽電池モジュール。6. The solar cell module according to claim 1, wherein the wiring members are connected by a conductive adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9362365A JPH11177117A (en) | 1997-12-12 | 1997-12-12 | Solar battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9362365A JPH11177117A (en) | 1997-12-12 | 1997-12-12 | Solar battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11177117A true JPH11177117A (en) | 1999-07-02 |
Family
ID=18476664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9362365A Pending JPH11177117A (en) | 1997-12-12 | 1997-12-12 | Solar battery module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11177117A (en) |
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| JP2005072115A (en) * | 2003-08-21 | 2005-03-17 | Sekisui Jushi Co Ltd | Solar cell module |
| WO2005098969A1 (en) * | 2004-04-08 | 2005-10-20 | Sharp Kabushiki Kaisha | Solar battery and solar battery module |
| CN102263168A (en) * | 2011-08-31 | 2011-11-30 | 无锡赛晶太阳能有限公司 | Method for replacing single cell in silicon solar cell component |
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- 1997-12-12 JP JP9362365A patent/JPH11177117A/en active Pending
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| JP2014003161A (en) * | 2012-06-19 | 2014-01-09 | Mitsubishi Chemicals Corp | Solar cell module |
| JP2015211154A (en) * | 2014-04-28 | 2015-11-24 | パナソニックＩｐマネジメント株式会社 | Photovoltaic device, solar cell structure using the same and manufacturing method of solar cell structure |
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| JPWO2017009957A1 (en) * | 2015-07-14 | 2017-11-09 | 三菱電機株式会社 | Solar cell module and method for manufacturing solar cell module |
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