JP2012182365A - Structure for electrical connection of terminal box to solar battery module - Google Patents

Structure for electrical connection of terminal box to solar battery module Download PDF

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JP2012182365A
JP2012182365A JP2011045121A JP2011045121A JP2012182365A JP 2012182365 A JP2012182365 A JP 2012182365A JP 2011045121 A JP2011045121 A JP 2011045121A JP 2011045121 A JP2011045121 A JP 2011045121A JP 2012182365 A JP2012182365 A JP 2012182365A
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terminal
electrode wire
solar battery
connection
terminal box
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JP5689710B2 (en
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Yutaka Hattori
豊 服部
Yuichi Takashima
祐一 高嶋
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Kitani Electric Co Ltd
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Kitani Electric Co Ltd
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    • 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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  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Photovoltaic Devices (AREA)

Abstract

PROBLEM TO BE SOLVED: To minimize soldering in connecting electrode wires a from solar battery cells 2 of a solar battery module M to terminal plates 12 of a terminal box B via output lead wires T.SOLUTION: An electrical connection structure is provided for connecting the electrical wires a from the solar battery cells 2 of the solar battery module to the terminal plates 12 of the terminal box B mounted on the solar battery module M. A connection terminal portion 12a of the terminal plate 12 comprises a flat tongue 14a on which a terminal portion of the electrode wire a can be placed, and holding claws 14b raised from side edges of the flat tongue. The terminal portion of the output lead wire T connected to the electrode wire a is placed on the flat tongue connection terminal portion 14a, and the holding claws 14b are crimped onto the terminal portion of the output lead wire T to connect the electrode wire a to the terminal plate 12. The crimping can be operationally easily performed with a crimping tool 18, and the crimping connection provides a reliable connection.

Description

この発明は、太陽電池モジュールに取付られた端子ボックスの端子板に、太陽電池モジュールの太陽電池セルからの電極線（タブリード線）を接続する電気接続構造、及びその接続方法に関するものである。   The present invention relates to an electrical connection structure for connecting an electrode wire (tab lead wire) from a solar cell of a solar cell module to a terminal plate of a terminal box attached to the solar cell module, and a connection method thereof.

太陽光発電システムは、図７に示すように、家屋の屋根等に太陽電池モジュールＭを配設し、そのモジュールＭから接続箱Ｑ、インバータＲ、分配盤Ｓを介して各種電気機器Ｅに電力供給する。その太陽電池モジュールＭは、同図に示すように全てが面一となるように配置され、端子ボックスＢを介して直列又は並列に接続する（特許文献１段落０００２、図１６〜図１７、図２２参照）。   As shown in FIG. 7, the photovoltaic power generation system has a solar cell module M arranged on the roof of a house and the like, and power is supplied from the module M to various electric devices E through a junction box Q, an inverter R, and a distribution board S. Supply. The solar cell modules M are arranged so that they are all flush with each other as shown in the figure, and are connected in series or in parallel via a terminal box B (Patent Document 1, paragraph 0002, FIGS. 16 to 17, FIG. 22).

その太陽電池モジュールＭは、図８に示すように、前面ガラス基板１上に太陽電池セル２を縦横所要個数配列し、その太陽電池セル２を透明樹脂３によって保護被覆し、その保護被覆層に裏面保護シート（バックシート）４を貼付し、その周囲をアルミニウム等のフレーム枠５によって保護した構成である（特許文献２明細書段落００２８〜同００３９、図３〜図４参照）。図中、６はシール材である。
この太陽電池モジュールＭの裏面に、そのモジュールＭを他のモジュールＭに接続すると共に、上記接続箱Ｑに接続するための端子ボックス（ジャンクションボックス）Ｂがシール材による水密性を維持して接着等によって固定される。
各太陽電池セル２同士、及びその太陽電池セル２と端子ボックスＢとの電気接続は、例えば、図９（ａ）、（ｂ）に示すように構成される。 In the solar cell module M, as shown in FIG. 8, the required number of solar cells 2 are arranged on the front glass substrate 1, and the solar cells 2 are protected by a transparent resin 3, and the protective coating layer is formed on the protective coating layer. A back protective sheet (back sheet) 4 is pasted, and the periphery thereof is protected by a frame frame 5 such as aluminum (see Patent Document 2, paragraphs 0028 to 0039 and FIGS. 3 to 4). In the figure, 6 is a sealing material.
On the back surface of the solar cell module M, the module M is connected to another module M, and a terminal box (junction box) B for connection to the connection box Q is maintained while maintaining watertightness by a sealing material. Fixed by.
Each solar cell 2 and the electrical connection between the solar cell 2 and the terminal box B are configured as shown in FIGS. 9A and 9B, for example.

端子ボックスＢは、通常、この発明の実施形態を示す図２、図３に示すように、ボックス本体１１内に、太陽電池モジュールＭの太陽電池セル２からの電極線（タブリード線）ａが電気接続される複数の端子板１２を並べて配設し、その隣り合う各端子板１２、１２の間に逆流防止用ダイオード１３を設け、両端の端子板１２、１２にはボックス本体１１の側壁を貫通した外部接続用ケーブルＰを接続したものである。   In the terminal box B, as shown in FIGS. 2 and 3 showing the embodiment of the present invention, the electrode wire (tab lead wire) a from the solar battery cell 2 of the solar battery module M is usually provided in the box body 11. A plurality of terminal plates 12 to be connected are arranged side by side, a backflow prevention diode 13 is provided between the adjacent terminal plates 12 and 12, and the terminal plates 12 and 12 at both ends penetrate the side wall of the box body 11. The external connection cable P is connected.

その太陽電池モジュールＭの電極線ａと端子板１２との電気接続は出力リード線Ｔによって行われており、その出力リード線Ｔの一端を電極線ａに半田付けによって電気接続し、その他端を、端子板１２にねじ止めしたり（特許文献３図６の符号２３ｂ参照）、半田付けしたり（特許文献３図１の符号２３ｂ参照）して接続している。   The electrical connection between the electrode wire a of the solar cell module M and the terminal plate 12 is performed by the output lead wire T. One end of the output lead wire T is electrically connected to the electrode wire a by soldering, and the other end is connected. The terminal board 12 is screwed (see reference numeral 23b in FIG. 6 of Patent Document 3) or soldered (see reference numeral 23b in FIG. 1 of Patent Document 3).

特開２００５−２２４０３６号公報Japanese Patent Laid-Open No. 2005-224036 特開２０１０−４０６８号公報JP 2010-4068 A 特開２００６−２９４６４６号公報JP 2006-294646 A 特開２００９−２０６４１６号公報JP 2009-206416 A

上述のように、出力リード線Ｔの電極線ａ及び端子板１２との何れの電気接続においても、その接続は半田付け又はビス止めによって行っている。
この半田付け及びビス止め作業は、煩雑であり、その改善が望まれている。 As described above, in any electrical connection between the electrode wire a of the output lead wire T and the terminal plate 12, the connection is performed by soldering or screwing.
The soldering and screwing operations are complicated and improvements are desired.

この発明は、その半田付け作業を極力少なくすることを課題とする。   An object of the present invention is to minimize the soldering operation.

上記課題を達成するために、この発明は、太陽電池モジュールＭの電極線ａと端子ボックスＢの端子板１２との接続作業時、既に、その電極線ａは太陽電池セル２に接続されていることから、その電極線ａと端子ボックスＢのみの接続であることに着目し、その接続作業が容易なカシメによることとしたのである。
カシメは、カシメ工具でもって容易に行い得るため、作業性の良いものである。また、圧着接続のため、接続信頼性も高いものである。 In order to achieve the above object, according to the present invention, when the electrode wire a of the solar cell module M and the terminal plate 12 of the terminal box B are connected, the electrode wire a is already connected to the solar cell 2. Therefore, paying attention to the connection of only the electrode wire a and the terminal box B, the connection work is performed by caulking.
The caulking can be easily performed with a caulking tool, and thus has good workability. In addition, because of the crimp connection, connection reliability is high.

この発明の具体的菜構成は、太陽電池モジュールに取付られた端子ボックスの端子板に、太陽電池モジュールの太陽電池セルからの電極線を接続する電気接続構造において、前記端子板の接続端子部は、電極線の端子部が当てがわれる平板片状と、その平板片の側縁から立ち上がった挟持爪とから成り、その平板片状接続端子部に電極線の端子部を当てがい、前記挟持爪をその電極線の端子部上にカシメて端子板と電極線を接続した構成を採用することができる。   The specific vegetable composition of this invention is an electrical connection structure in which the electrode wire from the solar cell of the solar cell module is connected to the terminal plate of the terminal box attached to the solar cell module. A flat plate piece to which the terminal portion of the electrode wire is applied, and a holding claw rising from the side edge of the flat plate piece, the terminal portion of the electrode wire being applied to the flat plate piece connection terminal portion, and the holding claw It is possible to adopt a configuration in which the terminal plate and the electrode wire are connected by crimping the electrode wire onto the terminal portion of the electrode wire.

この構成において、上記電極線は、太陽電池セルからの電極線であっても、その電極線に接続された出力リード線であっても良い。後者の出力リード線は電極線の一部だからである。   In this configuration, the electrode wire may be an electrode wire from a solar battery cell or an output lead wire connected to the electrode wire. This is because the latter output lead wire is a part of the electrode wire.

この接続構造は種々の接続方法によって行うことができるが、例えば、上記平板片状接続端子部に電極線の端子部を当てがい、上記挟持爪をその電極線上にカシメて端子板と電極線を接続する構成を採用することができる。   This connection structure can be performed by various connection methods. For example, the terminal portion of the electrode wire is applied to the flat plate-like connection terminal portion, and the clamping claws are crimped on the electrode wire to connect the terminal plate and the electrode wire. A connection configuration can be employed.

この発明は、以上のように、太陽電池モジュールＭの電極線と端子板との電気接続をカシメによって接続するようにしたので、その接続が容易となる。このため、端子ボックスの設置作業性が向上する。   In the present invention, as described above, since the electrical connection between the electrode wire of the solar cell module M and the terminal plate is connected by caulking, the connection becomes easy. For this reason, the installation workability of the terminal box is improved.

この発明に係る太陽電池モジュールの一実施形態の裏面側斜視図The back side perspective view of one embodiment of the solar cell module concerning this invention 同実施形態の端子ボックスの要部斜視図The principal part perspective view of the terminal box of the embodiment 図２の切断正面図Cut front view of FIG. 図２の要部拡大斜視図The principal part expansion perspective view of FIG. タブリード線の接続説明図Tab lead wire connection diagram リード線の製作説明用平面図Plan view for manufacturing lead wire リード線の製作説明用平面図Plan view for manufacturing lead wire リード線の製作説明図であり、（ａ）は平面図、（ｂ）は（ａ）のＸーＸ線断面図It is manufacture explanatory drawing of a lead wire, (a) is a top view, (b) is a XX line sectional view of (a). リード線の製作説明用平面図Plan view for manufacturing lead wire 太陽光発電システムの概略図Schematic diagram of solar power generation system 太陽電池モジュールの切断正面図Cutting front view of solar cell module （ａ）は太陽電池モジュールのセル配置図、（ｂ）はそのセルの電気配線図(A) is a cell layout of a solar cell module, (b) is an electrical wiring diagram of the cell.

この発明の一実施形態に係る太陽電池モジュールＭを図１に示し、この太陽電池モジュールＭは、従来と同様に、前面ガラス基板１上に太陽電池セル２を縦横所要個数配列し、その太陽電池セル２を透明樹脂３によって保護被覆し、その保護被覆層に裏面保護シート（バックシート）４を貼付し、その周囲をアルミニウム等のフレーム５枠によって保護した構成である。
この太陽電池モジュールＭの裏面に、図１に示すように、そのモジュールＭを他のモジュールＭに接続すると共に、上記接続箱Ｑに接続するための端子ボックスＢがシール材による水密性を維持してモジュールＭの裏面に接着等によって固定される。 A solar cell module M according to an embodiment of the present invention is shown in FIG. 1, and this solar cell module M has a required number of solar cells 2 arranged vertically and horizontally on a front glass substrate 1 in the same manner as in the past. The cell 2 is covered with a transparent resin 3 and a back protective sheet (back sheet) 4 is attached to the protective covering layer, and the periphery thereof is protected by a frame 5 made of aluminum or the like.
As shown in FIG. 1, on the back surface of the solar cell module M, the module M is connected to another module M, and the terminal box B for connecting to the connection box Q maintains watertightness by the sealing material. And fixed to the back surface of the module M by adhesion or the like.

この端子ボックスＢは、図２〜図４に示すように、上面開口のポリフェニレンオキサイド（ＰＰＯ）樹脂又はポリフェニレンエーテル（ＰＰＥ）樹脂製四角形状ボックス本体１１内に、太陽電池モジュールＭの平帯状のプラスタブリード線ａ及びマイナスタブリード線ａに電気接続される対の端子板１２（２枚の端子板１２）を並列に配設している。両端子板１２、１２間には逆流防止用（バイパス）ダイオード１３が設けられている。   As shown in FIGS. 2 to 4, the terminal box B has a flat band-like plus of the solar cell module M in a rectangular box body 11 made of polyphenylene oxide (PPO) resin or polyphenylene ether (PPE) resin at the top opening. A pair of terminal plates 12 (two terminal plates 12) electrically connected to the tab lead wire a and the minus tab lead wire a are arranged in parallel. A backflow prevention (bypass) diode 13 is provided between the terminal plates 12 and 12.

端子板１２は、ボックス本体１１の射出成形時にインサートされてボックス本体１１と一体になって、その一端１２ａがボックス本体１１の接続座１４に至っている。この接続座１４上の端子板一端１２ａは、平板片状１４ａとなってその側縁両側から挟持爪１４ｂが立ち上がっている。この平板片状接続端子部１４ａに、図５（ａ）に示すように、電極線ａに接続された出力リード線Ｔを当てがい、カシメ工具１８でもってその両挟持爪１４ｂ、１４ｂを出力リード線Ｔにカシメて端子板１２と電極線ａを出力リード線Ｔを介して接続する（同図（ｂ））。この接続作業を各端子板１２について行い、太陽電池モジュールＭの各電極線ａと端子ボックスＢの各端子板１２を接続する（図４参照）。このカシメ時の受座は接続座１４が担う。   The terminal plate 12 is inserted at the time of injection molding of the box body 11 and is integrated with the box body 11, and one end 12 a thereof reaches the connection seat 14 of the box body 11. One end 12a of the terminal plate on the connection seat 14 is a flat plate piece 14a, and the clamping claws 14b rise from both sides of the side edge. As shown in FIG. 5 (a), the output lead wire T connected to the electrode wire a is applied to the flat piece connection terminal portion 14a, and the clamping claws 14b and 14b are connected to the output lead with a caulking tool 18. The terminal plate 12 and the electrode wire a are connected by caulking to the wire T via the output lead wire T ((b) in the figure). This connection operation is performed for each terminal plate 12, and each electrode wire a of the solar cell module M and each terminal plate 12 of the terminal box B are connected (see FIG. 4). The connecting seat 14 is responsible for seating during the caulking.

出力リード線Ｔ及び電極線ａは、例えば、錫メッキ銅、半田メッキ銅等からなり、端子板１２は真鍮などの銅合金等の放熱性の高い導電材を使用している。   The output lead wire T and the electrode wire a are made of, for example, tin-plated copper, solder-plated copper, etc., and the terminal plate 12 uses a conductive material having high heat dissipation such as a copper alloy such as brass.

この出力リード線Ｔは、図６ａ〜図６ｄに示すように、まず、帯状片からその出力リード線Ｔの導体部３０が両端の帯状キャリア部３１からその長さ方向に交互に位置するように打ち抜き（同図ａ）、その打ち抜き帯状片の中央部の表裏両面に絶縁フィルム（テープ）３２を貼付する（同図（ｂ））。その導体部３０の中央部への絶縁フィルム３２の貼付範囲は、その貼付による絶縁被覆範囲が上記バックシート４等との電気絶縁を担保するために必要十分なものとする。絶縁フィルム３２は、ポリイミド等の耐熱性、耐久性、絶縁性に優れたものを使用する。   As shown in FIGS. 6a to 6d, the output lead wire T is first arranged so that the conductor portions 30 of the output lead wire T are alternately positioned from the strip-like carrier portions 31 in the length direction from the strip-like pieces. The insulating film (tape) 32 is stuck on both the front and back surfaces of the central portion of the punched strip (a in the same figure). The pasting range of the insulating film 32 to the central portion of the conductor portion 30 is necessary and sufficient so that the insulating coating range by the pasting ensures electrical insulation with the back sheet 4 and the like. As the insulating film 32, a film having excellent heat resistance, durability, and insulating properties such as polyimide is used.

つぎに、その絶縁フィルム３２付帯状片の各出力リード線導体部３０間の絶縁フィルム３２にスリット３２ａを入れることによって、各出力リード線Ｔの絶縁フィルム３２を切り離し（同図（ｃ））、両側のキャリア部３１を離すことによって、各キャリア部３１に出力リード線Ｔがその長さ方向に等間隔に設けられたものを得る（同図（ｄ））。このとき、各出力リード線導体部３０間には間隙Ｓが形成されているため、その間隙Ｓにおいては、出力リード線導体部３０の中央部表裏両面に貼付した両絶縁フィルム３２、３２が互いに接合する。このため、その接合した両絶縁フィルム３２、３２によって両出力リード線導体部３０、３０の側端面の絶縁性が確実となる。   Next, the insulating film 32 of each output lead wire T is cut off by putting a slit 32a in the insulating film 32 between the output lead wire conductor portions 30 of the strip with the insulating film 32 ((c) in the figure), By separating the carrier portions 31 on both sides, the carrier portions 31 with the output lead wires T provided at equal intervals in the length direction are obtained ((d) in the figure). At this time, a gap S is formed between the output lead conductor portions 30. In the gap S, the insulating films 32 and 32 attached to both the front and back surfaces of the center portion of the output lead conductor portion 30 are mutually connected. Join. For this reason, the insulation properties of the side end faces of the output lead wire conductor portions 30 and 30 are ensured by the joined insulating films 32 and 32.

この出力リード線Ｔは、キャリア部３１から切り離して、裏面保護シート４を保護被覆層に貼付する前に上記電極線ａに半田接続され、その貼付時、裏面保護シート４の孔からシート４表面に導き出される（図８参照）。その半田接続は、出力リード線Ｔの端末に半田を載せて溶融させる、通常の手段を採用したり、その端末に厚めの半田鍍金を予め施しておき、その半田鍍金を小手等で溶融させる手段を採用したりすることができる。   This output lead wire T is cut off from the carrier portion 31 and soldered to the electrode wire a before applying the back surface protective sheet 4 to the protective coating layer. (See FIG. 8). For the solder connection, a normal means is adopted in which solder is placed on the terminal of the output lead wire T and melted, or a thick solder plating is preliminarily applied to the terminal, and the solder plating is melted with a hand or the like. Can be adopted.

ボックス本体１１下側（図１下側）両端には２本の外部接続用ケーブルＰが接続され、このケーブルＰの他端にはそれぞれ雄コネクタ２１又は雌コネクタ２２が設けられ、これらの雌又は雄コネクタ２１、２２は、隣の端子ボックスＢの雄又は雌コネクタ２１、２２に接続される。   Two external connection cables P are connected to both lower ends of the box body 11 (lower side in FIG. 1), and a male connector 21 or a female connector 22 is provided at the other end of the cable P, respectively. The male connectors 21 and 22 are connected to the male or female connectors 21 and 22 of the adjacent terminal box B.

ボックス本体１１の上面開口にはＰＰＯ樹脂又はＰＰＥ樹脂製のカバー１５を防水リング１６を介し嵌着して防水性とする。ボックス本体１１内にはシリコーン樹脂などを適宜に充填する。ボックス本体１１の裏面はシボ加工し、その裏面の接着テープ（図示せず）でもって端子ボックスＢを太陽電池モジュールＭの裏面に固定する。   A cover 15 made of PPO resin or PPE resin is fitted to the top opening of the box body 11 via a waterproof ring 16 to make it waterproof. The box body 11 is appropriately filled with silicone resin or the like. The back surface of the box body 11 is textured, and the terminal box B is fixed to the back surface of the solar cell module M with an adhesive tape (not shown) on the back surface.

その太陽電池モジュールＭ裏面に端子ボックスＢを固定するには、裏面保護シート４表面に導き出された出力リード線Ｔを、端子ボックスＢの底面透孔１１ａからボックスＢ内に導き入れつつ、端子ボックスＢを太陽電池モジュールＭ裏面（裏面保護シート４表面）に接着等によって固定する。
端子ボックスＢ内の導き入れた出力リード線Ｔは、図２〜図４に示すように、その導入端を端子板１２の一端１２ａに接続する。この接続は、上記のように、図５に示すカシメによる。 In order to fix the terminal box B to the back surface of the solar cell module M, the output lead wire T led to the surface of the back surface protection sheet 4 is introduced into the box B from the bottom through-hole 11a of the terminal box B, and the terminal box B is fixed to the back surface of the solar cell module M (the surface of the back surface protection sheet 4) by adhesion or the like.
As shown in FIGS. 2 to 4, the introduced output lead wire T in the terminal box B connects its introduction end to one end 12 a of the terminal plate 12. As described above, this connection is performed by caulking shown in FIG.

なお、上記実施形態では、出力リード線Ｔの絶縁被覆を絶縁フィルム３２の貼付により形成したが、絶縁材の塗布等の他の種々の手段を採用することができる。また、絶縁フィルム３２には、上記従来使用の絶縁テープ（フィルム）も支障がない限りにおいて含まれる。さらに、絶縁被覆にポリイミドを使用すれば、シリコーン樹脂充填を省略しても支障がないようにし得るが、その充填を行っても良いことは勿論である。
また、端子ボックスＢの態様は、上記の実施形態に限らず、特許文献４図２、図5に記載の３個以上の端子板１２を有する各種のものに採用できることは勿論である。 In the above embodiment, the insulation coating of the output lead wire T is formed by pasting the insulation film 32, but other various means such as application of an insulating material can be employed. The insulating film 32 includes the above-described conventionally used insulating tape (film) as long as there is no problem. Furthermore, if polyimide is used for the insulating coating, it can be made safe even if the silicone resin filling is omitted, but it is needless to say that the filling may be performed.
Further, the mode of the terminal box B is not limited to the above-described embodiment, and it is needless to say that the terminal box B can be applied to various types having three or more terminal plates 12 described in Patent Document 4 FIGS.

Ｂ 端子ボックス
Ｍ 太陽電池モジュール
Ｔ 出力リード線
ａ タブリード線（電極線）
１１ 端子ボックス本体
１２ 端子板
１２ａ 端子板一端（接続端子部）
１３ 逆流防止用（バイパス）ダイオード
１４ａ 平板片状接続端子部
１４ｂ 挟持爪
１８ カシメ工具
３０ 出力リード線導体部
３１ 帯状片のキャリア部
３２ リード線用絶縁フィルム（絶縁被覆）
３２ａ 絶縁フィルムのスリット B Terminal box M Solar cell module T Output lead wire a Tab lead wire (electrode wire)
11 Terminal box body 12 Terminal board 12a One end of terminal board (connection terminal part)
13 Backflow prevention (bypass) diode 14a Flat plate-like connecting terminal portion 14b Holding claw 18 Caulking tool 30 Output lead wire conductor portion 31 Strip piece carrier portion 32 Lead wire insulating film (insulation coating)
32a Insulating film slit

Claims (2)

太陽電池モジュール（Ｍ）に取付られた端子ボックス（Ｂ）の端子板（１２）に、前記太陽電池モジュール（Ｍ）の太陽電池セル（２）からの電極線（ａ）を接続する電気接続構造であって、
上記端子板（１２）の接続端子部（１２ａ）は、上記電極線（ａ）の端子部が当てがわれる平板片部（１４ａ）と、その平板片部（１４ａ）の側縁から立ち上がった挟持爪（１４ｂ）とから成り、その平板片状接続端子部（１４ａ）に電極線（ａ）の端子部を当てがい、前記挟持爪（１４ｂ）をその電極線（ａ）の端子部上にカシメて端子板（１２）と電極線（ａ）を接続したことを特徴とする太陽電池モジュールへの端子ボックスの電気接続構造。 Electrical connection structure for connecting the electrode wire (a) from the solar battery cell (2) of the solar battery module (M) to the terminal plate (12) of the terminal box (B) attached to the solar battery module (M) Because
The connection terminal portion (12a) of the terminal plate (12) is sandwiched between the flat plate piece (14a) to which the terminal portion of the electrode wire (a) is applied and the side edge of the flat plate piece (14a). A claw (14b), the terminal portion of the electrode wire (a) is applied to the flat plate-like connecting terminal portion (14a), and the clamping claw (14b) is caulked on the terminal portion of the electrode wire (a). A terminal box electrical connection structure to a solar cell module, wherein the terminal plate (12) and the electrode wire (a) are connected. 請求項１に記載の太陽電池モジュールへの端子ボックス（Ｂ）の電気接続構造をなす接続方法であって、上記平板片状接続端子部（１４ａ）に電極線（ａ）の端子部を当てがい、上記挟持爪（１４ｂ）をその電極線（ａ）上にカシメて端子板（１２）と電極線（ａ）を接続することを特徴とする太陽電池モジュールへの端子ボックスの電気接続方法。   It is the connection method which makes the electrical connection structure of the terminal box (B) to the solar cell module of Claim 1, Comprising: The terminal part of an electrode wire (a) is applied to the said flat piece connection terminal part (14a). The terminal box (12) and the electrode wire (a) are connected by crimping the clamping claws (14b) onto the electrode wire (a), and the terminal box is electrically connected to the solar cell module.
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