JP2006190768A - Solar battery module - Google Patents

Solar battery module Download PDF

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Publication number
JP2006190768A
JP2006190768A JP2005000724A JP2005000724A JP2006190768A JP 2006190768 A JP2006190768 A JP 2006190768A JP 2005000724 A JP2005000724 A JP 2005000724A JP 2005000724 A JP2005000724 A JP 2005000724A JP 2006190768 A JP2006190768 A JP 2006190768A
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back surface
solar cell
reinforcing member
terminal box
engaging portion
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Yoshinori Nishihara
西原　　啓徳
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Fuji Electric Co Ltd
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Fuji Electric Holdings Ltd
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Priority to JP2005000724A priority Critical patent/JP2006190768A/en
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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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Abstract

<P>PROBLEM TO BE SOLVED: To improve the joining strength of a terminal box, facilitate a manufacturing operation, make a gap hard to occur on a joining surface of the terminal box, and reduce the number of components. <P>SOLUTION: The terminal box 14 has a box engaging part 14a. A rear reinforcing member 13 is formed on the rear face of a solar battery element 12. Thereafter, an opening is formed at the rear reinforcing member 13. A rear engaging part 13a has part of the reinforcing member 13 formed to protrude from the periphery of the opening toward the rear face of the solar battery element 12. The terminal box 14 is placed to cover the opening. Thereafter, the terminal box 14 is attached to the rear reinforcing member 13 by joining the rear engaging part 13a and the box engaging part 14a via an adhesive. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、太陽電池モジュールに関し、特に、光エネルギーを電気エネルギーに変換する太陽電池素子を有する太陽電池モジュールに関する。   The present invention relates to a solar cell module, and more particularly to a solar cell module having a solar cell element that converts light energy into electrical energy.

現在、環境保護の観点から、環境に優しいエネルギーが注目されている。特に、太陽電池モジュールは、太陽の持つ光エネルギーから電気エネルギーを生成する発電装置であるので、非常にクリーンな発電装置として注目されている。具体的には、太陽電池モジュールの技術の進展、及び、国家政策から、太陽電池モジュールの導入量が増大している。   Currently, environmentally friendly energy is attracting attention from the viewpoint of environmental protection. In particular, since the solar cell module is a power generation device that generates electric energy from the light energy of the sun, it has attracted attention as a very clean power generation device. Specifically, the amount of solar cell modules introduced has increased due to the progress of solar cell module technology and national policies.

この太陽電池モジュールにおいて、太陽電池素子をＥＶＡ（エチレンビニールアセテート）等で封止し、受光面側にガラスや有機樹脂や耐候性フィルム等を配置し、非受光面側に金属や有機樹脂や瓦材等を配置している。   In this solar cell module, the solar cell element is sealed with EVA (ethylene vinyl acetate) or the like, glass, an organic resin, a weather resistant film or the like is disposed on the light receiving surface side, and a metal, organic resin or roof tile is disposed on the non-light receiving surface side. Materials are arranged.

この耐候性フィルムを使用する太陽電池モジュールは、非常に軽量であるので、屋根に適用した場合でも屋根の重量が大きく増加しない。また、太陽電池モジュール付きの屋根は、太陽電池モジュールの配線作業を除き、通常の屋根とほぼ同様の工程で形成される。よって、建物の設計において、太陽電池モジュールを搭載する場合としない場合とで設計変更はなくて施工性に優れる。   Since the solar cell module using this weather-resistant film is very lightweight, the weight of the roof does not increase greatly even when applied to the roof. Moreover, the roof with a solar cell module is formed in substantially the same process as a normal roof except for wiring work of the solar cell module. Therefore, in the design of the building, there is no design change between the case where the solar cell module is mounted and the case where the solar cell module is not mounted, and the workability is excellent.

ここで、太陽電池素子が発電した電力を外部に取り出すために、非受光面に配置された裏面補強部材の一部に開口部を設け、太陽電池素子の端子に接続された電力取出部材を開口部から取り出す。そして、取り出された電力取出部材を、開口部を覆うように配置された端子箱内に接続する。   Here, in order to take out the electric power generated by the solar cell element to the outside, an opening is provided in a part of the back surface reinforcing member disposed on the non-light-receiving surface, and the power extraction member connected to the terminal of the solar cell element is opened. Remove from the part. And the taken-out electric power extraction member is connected in the terminal box arrange | positioned so that an opening part may be covered.

この裏面補強部材と端子箱とを接合する場合、接着剤と粘着剤とを使用する方法が存在する。
また、接着剤と粘着剤とを使用し、接着剤と粘着剤とが機能するまでの乾燥期間に、おもりを端子箱の上に載せる方法が存在する。 When joining this back surface reinforcing member and a terminal box, there exists a method of using an adhesive and a pressure sensitive adhesive.
Further, there is a method of using an adhesive and a pressure-sensitive adhesive and placing a weight on the terminal box during a drying period until the adhesive and the pressure-sensitive adhesive function.

また、接着剤と粘着剤とを使用せず、端子箱の取り付け作業を容易にするために、機械的に接合する方法が存在する（例えば、特許文献１参照）。
また、接着剤と粘着剤とを使用し、さらに、金属製の独立部品の接合板を裏面補強部材にスポット溶接し、孔を端子箱に用意し、その接合板とその孔とを接合する方法が存在する（例えば、特許文献２参照）。
特開２０００−３５７８１２号公報 特開２００４−２４７５９１号公報 In addition, there is a method of mechanically joining without using an adhesive and a pressure-sensitive adhesive in order to facilitate the attachment work of the terminal box (see, for example, Patent Document 1).
In addition, a method of using an adhesive and a pressure-sensitive adhesive, and further spot welding a joining plate made of metal independent parts to a back reinforcing member, preparing a hole in a terminal box, and joining the joining plate and the hole (See, for example, Patent Document 2).
JP 2000-357812 A Japanese Patent Laid-Open No. 2004-247591

しかし、接着剤と粘着剤とのみを使用する場合では、接着剤と粘着剤とが機能するまでの乾燥期間の終了前に、接合面がずれたり浮いたりするので、接合強度が弱い。
また、おもりを使用する場合では、製造作業が煩雑になって広い製造作業場が必要になるので、量産性が悪い。 However, when only the adhesive and the pressure-sensitive adhesive are used, the bonding surface is displaced or floated before the end of the drying period until the adhesive and the pressure-sensitive adhesive function, so that the bonding strength is weak.
Further, when using a weight, the manufacturing work becomes complicated and a large manufacturing work place is required, so that the mass productivity is poor.

また、特許文献１により開示された技術では、機械的な接合なので、実質的に裏面補強部材と端子箱との間に隙間ができて水分が浸入して漏電が発生する。
また、特許文献２により開示された技術では、接合板が追加されて部品点数が増加するので、コストが増加する。 Moreover, in the technique disclosed by patent document 1, since it is mechanical joining, a clearance gap will be substantially formed between a back surface reinforcement member and a terminal box, and a water | moisture content permeate | occur | produces and an electric leakage generate | occur | produces.
Moreover, in the technique disclosed by patent document 2, since a joining board is added and a number of parts increases, cost increases.

本発明は、このような点に鑑みてなされたものであり、端子箱の接合強度が強く、製造作業が容易であり、端子箱の接合面に隙間が出来にくく、部品点数が減少する太陽電池モジュールを提供することを目的とする。   The present invention has been made in view of the above points, and has a strong bonding strength of the terminal box, an easy manufacturing operation, a gap on the bonding surface of the terminal box is hardly formed, and the number of components is reduced. The purpose is to provide modules.

本発明では、上記課題を解決するために、光エネルギーを電気エネルギーに変換する太陽電池素子を有する太陽電池モジュールにおいて、太陽電池素子の裏面側に形成された裏面補強部材と、裏面補強部材に形成された開口部の周辺から、裏面補強部材の一部が太陽電池素子の裏面側に突出して形成された裏面係合部と、箱係合部を有し、開口部を覆うように配置され、接着剤によって裏面係合部と箱係合部とを接合させることで裏面補強部材に取り付けられた端子箱と、を有することを特徴とする太陽電池モジュールが提供される。   In the present invention, in order to solve the above problems, in a solar cell module having a solar cell element that converts light energy into electric energy, the back surface reinforcing member formed on the back surface side of the solar cell element and the back surface reinforcing member are formed. From the periphery of the opened portion, a part of the back surface reinforcing member has a back surface engaging portion formed to protrude to the back surface side of the solar cell element, a box engaging portion, and is arranged so as to cover the opening portion, There is provided a solar cell module comprising: a terminal box attached to a back surface reinforcing member by bonding a back surface engaging portion and a box engaging portion with an adhesive.

このような太陽電池モジュールによると、まず、端子箱は、箱係合部を有している。また、裏面補強部材は、太陽電池素子の裏面側に形成されている。その後、開口部が裏面補強部材に形成される。そして、裏面係合部は、開口部の周辺から、裏面補強部材の一部が太陽電池素子の裏面側に突出して形成される。その後、端子箱は、開口部を覆うように配置される。そして、端子箱は、接着剤によって裏面係合部と箱係合部とを接合させることで裏面補強部材に取り付けられる。   According to such a solar cell module, first, the terminal box has a box engaging portion. The back reinforcing member is formed on the back side of the solar cell element. Thereafter, an opening is formed in the back reinforcing member. And a back surface engaging part is formed so that a part of back surface reinforcing member may protrude in the back surface side of a solar cell element from the circumference of an opening. Thereafter, the terminal box is disposed so as to cover the opening. And a terminal box is attached to a back surface reinforcement member by joining a back surface engaging part and a box engaging part with an adhesive agent.

本発明では、裏面係合部は、裏面補強部材の一部が太陽電池素子の裏面側に突出して形成され、端子箱は、接着剤によって裏面係合部と箱係合部とを接合させることで裏面補強部材に取り付けられるようにした。   In the present invention, the back surface engaging portion is formed such that a part of the back surface reinforcing member protrudes to the back surface side of the solar cell element, and the terminal box is made to join the back surface engaging portion and the box engaging portion with an adhesive. It can be attached to the back reinforcing member.

このようにすると、常に裏面係合部と箱係合部とを係合させて押さえるので、接合面がずれたり浮いたりしない。よって、端子箱の接合強度が強くなる。
また、常に裏面係合部と箱係合部とを係合させて押さえているので、製造作業が容易である。 If it does in this way, since a back surface engaging part and a box engaging part are always engaged and pressed down, a joint surface does not shift or float. Therefore, the bonding strength of the terminal box is increased.
Moreover, since the back surface engaging part and the box engaging part are always engaged and pressed down, the manufacturing operation is easy.

また、接着剤によって裏面係合部と箱係合部とを接合させるので、裏面補強部材と端子箱との接合面に隙間ができにくくなる。
また、裏面係合部は、裏面補強部材の一部が太陽電池素子の裏面側に突出して形成されるので、部品点数が減少する。 Further, since the back surface engaging portion and the box engaging portion are joined by the adhesive, it is difficult to form a gap on the joint surface between the back surface reinforcing member and the terminal box.
Moreover, since a part of back surface reinforcement member protrudes and forms in the back surface side of a solar cell element, a back surface engaging part reduces a number of parts.

以下、本発明の実施の形態を図面を参照して説明する。
まず、本発明の概念について説明する。図１は、本発明の概念図である。
図に示すように、太陽電池モジュール１０は、表面補強部材１１、太陽電池素子１２、電力取出部材１２ａ、裏面補強部材１３、裏面係合部１３ａ、端子箱１４、箱係合部１４ａ、固定部材１４ｂ、ケーブル１５、及び、芯線１５ａから構成される。太陽電池モジュール１０は、端子箱１４を利用して太陽電池素子１２、電力取出部材１２ａ、固定部材１４ｂ、及び、芯線１５ａを電気的に接続することで、太陽電池素子１２が発電した電力を外部に供給する。なお、太陽電池素子１２と電力取出部材１２ａとを直接に接続せず、リード線等を介して接続することもできる。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, the concept of the present invention will be described. FIG. 1 is a conceptual diagram of the present invention.
As shown in the figure, the solar cell module 10 includes a surface reinforcing member 11, a solar cell element 12, a power extraction member 12a, a back reinforcing member 13, a back engaging portion 13a, a terminal box 14, a box engaging portion 14a, and a fixing member. 14b, the cable 15, and the core wire 15a. The solar cell module 10 uses the terminal box 14 to electrically connect the solar cell element 12, the power extraction member 12a, the fixing member 14b, and the core wire 15a, so that the electric power generated by the solar cell element 12 is externally supplied. To supply. Note that the solar cell element 12 and the power extraction member 12a may be connected via a lead wire or the like without being directly connected.

まず、端子箱１４は、箱係合部１４ａと固定部材１４ｂとを有している。ここで、端子箱１４内に設けられた固定部材１４ｂは、太陽電池素子１２の端子に接続された電力取出部材１２ａと、外部のケーブル１５の芯線１５ａとの接続部である。   First, the terminal box 14 has a box engaging portion 14a and a fixing member 14b. Here, the fixing member 14 b provided in the terminal box 14 is a connection portion between the power extraction member 12 a connected to the terminal of the solar cell element 12 and the core wire 15 a of the external cable 15.

また、端子箱１４は、太陽電池素子１２の端子に接続された電力取出部材１２ａを端子箱１４内に接続するために穴を有している。
また、光エネルギーを電気エネルギーに変換する太陽電池素子１２は、表面補強部材１１と裏面補強部材１３とによって補強されている。具体的には、表面補強部材１１は、太陽電池素子１２の表面側に形成され、裏面補強部材１３は、太陽電池素子１２の裏面側に形成されている。 Further, the terminal box 14 has a hole for connecting the power extraction member 12 a connected to the terminal of the solar cell element 12 into the terminal box 14.
Further, the solar cell element 12 that converts light energy into electric energy is reinforced by the front surface reinforcing member 11 and the back surface reinforcing member 13. Specifically, the surface reinforcing member 11 is formed on the front surface side of the solar cell element 12, and the back surface reinforcing member 13 is formed on the back surface side of the solar cell element 12.

その後、開口部が裏面補強部材１３に形成される。そして、裏面係合部１３ａは、開口部の周辺から、裏面補強部材１３の一部が折り曲げ加工され、太陽電池素子１２の裏面側に突出して形成される。つまり、１つの開口部を形成する過程で、電力を取り出すための開口部と、裏面係合部１３ａとが同時に形成される。そして、端子箱１４は、開口部から取り出された電力取出部材１２ａと、外部のケーブル１５の芯線１５ａとの接続部を覆うように配置され、接続部を保護する。また、端子箱１４は、開口部を覆うように配置され、開口部を保護する。   Thereafter, an opening is formed in the back reinforcing member 13. And the back surface engaging part 13a is formed by bending a part of the back surface reinforcing member 13 from the periphery of the opening and projecting to the back surface side of the solar cell element 12. That is, in the process of forming one opening, the opening for taking out electric power and the back surface engaging portion 13a are simultaneously formed. And the terminal box 14 is arrange | positioned so that the connection part of the electric power extraction member 12a taken out from the opening part and the core wire 15a of the external cable 15 may be covered, and a connection part is protected. Moreover, the terminal box 14 is arrange | positioned so that an opening part may be covered, and an opening part is protected.

その後、端子箱１４は、裏面係合部１３ａが折り曲げ加工され、接着剤１６によって裏面係合部１３ａと箱係合部１４ａとを接合させることで裏面補強部材１３に取り付けられる。   Thereafter, the back surface engaging portion 13a is bent and the terminal box 14 is attached to the back surface reinforcing member 13 by bonding the back surface engaging portion 13a and the box engaging portion 14a with the adhesive 16.

このようにすると、常に裏面係合部１３ａと箱係合部１４ａとを係合させて押さえるので、接合面がずれたり浮いたりしない。よって、端子箱の接合強度が強くなる。
また、常に裏面係合部１３ａと箱係合部１４ａとを係合させて押さえているので、おもりは不要であり、製造作業が容易であって広い製造作業場が不要になる。よって、太陽電池モジュール１０の量産性はよくなる。 If it does in this way, since the back surface engaging part 13a and the box engaging part 14a are always engaged and pressed down, a joint surface does not shift or float. Therefore, the bonding strength of the terminal box is increased.
Further, since the back surface engaging portion 13a and the box engaging portion 14a are always engaged and pressed, the weight is unnecessary, the manufacturing work is easy, and a wide manufacturing work place is not required. Therefore, the mass productivity of the solar cell module 10 is improved.

また、接着剤によって裏面係合部１３ａと箱係合部１４ａとを接合させるので、裏面補強部材１３と端子箱１４との接合面に隙間ができにくく、水分は浸入しない。よって、太陽電池モジュール１０において、漏電は発生しなくなる。   Moreover, since the back surface engaging part 13a and the box engaging part 14a are joined by an adhesive agent, it is difficult to form a gap on the joint surface between the back surface reinforcing member 13 and the terminal box 14, and moisture does not enter. Therefore, no leakage occurs in the solar cell module 10.

また、裏面係合部１３ａは、裏面補強部材１３の一部が太陽電池素子１２の裏面側に突出して形成されるので、部品点数が減少する。よって、太陽電池モジュール１０において、コストは減少する。   Moreover, since a part of back surface reinforcement member 13 protrudes in the back surface side of the solar cell element 12, the back surface engaging part 13a reduces a number of parts. Therefore, the cost is reduced in the solar cell module 10.

［第１の実施の形態］
次に、本発明の第１の実施の形態の具体的な内容について説明する。図２は、裏面側から見た太陽電池モジュールの構造図である。 [First Embodiment]
Next, specific contents of the first embodiment of the present invention will be described. FIG. 2 is a structural diagram of the solar cell module viewed from the back side.

図に示すように、太陽電池モジュール２０は、端子箱２１、蓋２２、固定部材２３、固定部２４、ケーブル２５、芯線２６、開口部２７、電力取出部材２８、箱係合部２９、及び、裏面係合部３０から構成される。太陽電池モジュール２０は、端子箱２１利用して太陽電池素子（図示せず）、電力取出部材２８、固定部材２３、及び、芯線２６を電気的に接続することで、太陽電池素子が発電した電力を外部に供給する。なお、太陽電池素子と電力取出部材２８とを直接に接続せず、リード線等を介して接続することもできる。   As shown in the figure, the solar cell module 20 includes a terminal box 21, a lid 22, a fixing member 23, a fixing part 24, a cable 25, a core wire 26, an opening 27, a power extraction member 28, a box engaging part 29, and It is composed of a back surface engaging portion 30. The solar cell module 20 uses a terminal box 21 to electrically connect a solar cell element (not shown), a power extraction member 28, a fixing member 23, and a core wire 26, thereby generating electric power generated by the solar cell element. Is supplied to the outside. Note that the solar cell element and the power extraction member 28 may be connected via a lead wire or the like instead of being directly connected.

まず、端子箱２１は、箱係合部２９と固定部材２３とを有している。ここで、端子箱２１内に設けられた固定部材２３は、固定部２４によって端子箱２１に取り付けられ、太陽電池素子の端子に接続された電力取出部材２８と、外部のケーブル２５の芯線２６との接続部である。この端子箱２１内において、電気的な接続部分から水分の影響を排除するために、芯線２６と電力取出部材２８との接続の後に防水・絶縁用の充填部材（図示せず）が充填され、その後、端子箱２１に蓋２２が取り付けられる。なお、この充填部材は、耐火性向上の観点から、難燃性のものがよい。   First, the terminal box 21 has a box engaging portion 29 and a fixing member 23. Here, the fixing member 23 provided in the terminal box 21 is attached to the terminal box 21 by the fixing portion 24 and connected to the terminal of the solar cell element, and the core wire 26 of the external cable 25. It is a connection part. In this terminal box 21, in order to eliminate the influence of moisture from the electrical connection portion, a waterproof / insulating filling member (not shown) is filled after the connection between the core wire 26 and the power extraction member 28, Thereafter, the lid 22 is attached to the terminal box 21. The filling member is preferably flame retardant from the viewpoint of improving fire resistance.

また、端子箱２１は、太陽電池素子の端子に接続された電力取出部材２８を端子箱２１内に接続するために穴を有している。
また、光エネルギーを電気エネルギーに変換する太陽電池素子は、表面補強部材（図示せず）と裏面補強部材（図示せず）とによって補強されている。具体的には、表面補強部材は、太陽電池素子の表面側に形成され、裏面補強部材は、太陽電池素子の裏面側に形成されている。 Further, the terminal box 21 has a hole for connecting the power extraction member 28 connected to the terminal of the solar cell element into the terminal box 21.
Moreover, the solar cell element which converts light energy into electric energy is reinforced by a surface reinforcing member (not shown) and a back surface reinforcing member (not shown). Specifically, the surface reinforcing member is formed on the front surface side of the solar cell element, and the back surface reinforcing member is formed on the back surface side of the solar cell element.

その後、開口部２７が裏面補強部材に形成される。そして、裏面係合部３０は、開口部２７の周辺から、裏面補強部材の一部が折り曲げ加工され、太陽電池素子の裏面側に突出して形成される。つまり、１つの開口部２７を形成する過程で、電力を取り出すための開口部２７と、裏面係合部３０とが同時に形成される。そして、端子箱２１は、開口部２７から取り出された電力取出部材２８と、外部のケーブル２５の芯線２６との接続部を覆うように配置され、接続部を保護する。また、端子箱２１は、開口部２７を覆うように配置され、開口部２７を保護する。この開口部２７に対しても充填部材が充填される。   Thereafter, the opening 27 is formed in the back reinforcing member. And the back surface engaging part 30 is formed by bending a part of the back surface reinforcing member from the periphery of the opening 27 and projecting to the back surface side of the solar cell element. That is, in the process of forming one opening 27, the opening 27 for taking out electric power and the back surface engaging portion 30 are formed simultaneously. And the terminal box 21 is arrange | positioned so that the connection part of the electric power extraction member 28 taken out from the opening part 27 and the core wire 26 of the external cable 25 may be covered, and a connection part is protected. The terminal box 21 is disposed so as to cover the opening 27 and protects the opening 27. The opening member 27 is also filled with a filling member.

その後、端子箱２１は、裏面係合部３０が折り曲げ加工され、接着剤（図示せず）によって裏面係合部３０と箱係合部２９とを接合させることで裏面補強部材に取り付けられる。   Thereafter, the back surface engaging portion 30 is bent and the terminal box 21 is attached to the back surface reinforcing member by joining the back surface engaging portion 30 and the box engaging portion 29 with an adhesive (not shown).

次に、図２で示されたＡ部を拡大し、開口部２７について説明する。図３は、第１の実施の形態における開口部を示す図である。
ここで、裏面補強部材３１の一部は、予め切り込みを入れられている。なお、例えば、裏面補強部材３１は、厚さは０．８ｍｍであり、金属板としてはガルバリウム板である。また、裏面補強部材３１は、ＥＶＡ等によって太陽電池素子（図示せず）に張り合わされる。 Next, the A part shown in FIG. 2 is enlarged and the opening part 27 is demonstrated. FIG. 3 is a diagram showing an opening in the first embodiment.
Here, a part of the back surface reinforcing member 31 is cut in advance. For example, the back reinforcing member 31 has a thickness of 0.8 mm, and the metal plate is a galvalume plate. The back reinforcing member 31 is attached to a solar cell element (not shown) by EVA or the like.

その後、裏面係合部３０は、切り込みを入れられた部分が、折り曲げ加工されて引き起こされて形成される。また、開口部２７は、裏面係合部３０が引き起こされることにより、太陽電池素子を露出させる。なお、後に裏面係合部３０となる裏面補強部材３１の一部には、該当する裏面補強部材３１をＥＶＡ等から剥離するために、ＥＴＦＴ（エチレン・４フッ化エチレン共重合体）等を予めラミネートし、裏面係合部３０が引き起こされた後にＥＴＦＴ等を除去する。   Thereafter, the back surface engaging portion 30 is formed by bending the cut portion and causing it to be bent. Moreover, the opening part 27 exposes the solar cell element when the back surface engaging part 30 is caused. It should be noted that ETFT (ethylene tetrafluoroethylene copolymer) or the like is previously applied to a part of the back reinforcing member 31 that will later become the back engaging portion 30 in order to peel off the corresponding back reinforcing member 31 from EVA or the like. Lamination is performed and the ETFT and the like are removed after the back surface engaging portion 30 is raised.

次に、図２で示されたＡ部を拡大し、詳細に説明する。図４は、第１の実施の形態における図２のＡ部の拡大図である。
ここで、開口部２７から露出した太陽電池素子（図示せず）は、電力取出部材２８と接続される。そして、箱係合部２９を有する端子箱２１に接着剤（図示せず）が塗布される。そして、端子箱２１は、開口部２７を覆うように配置される。そして、端子箱２１は、裏面係合部３０が折り曲げ加工され、接着剤によって裏面係合部３０と箱係合部２９とを接合させることで裏面補強部材３１に取り付けられる。 Next, the A part shown in FIG. 2 will be enlarged and described in detail. FIG. 4 is an enlarged view of a portion A in FIG. 2 in the first embodiment.
Here, the solar cell element (not shown) exposed from the opening 27 is connected to the power extraction member 28. Then, an adhesive (not shown) is applied to the terminal box 21 having the box engaging portion 29. And the terminal box 21 is arrange | positioned so that the opening part 27 may be covered. The terminal box 21 is attached to the back surface reinforcing member 31 by bending the back surface engaging part 30 and joining the back surface engaging part 30 and the box engaging part 29 with an adhesive.

このようにすると、常に裏面係合部３０と箱係合部２９とを係合させて押さえるので、接合面がずれたり浮いたりしない。よって、端子箱の接合強度が強くなる。
また、常に裏面係合部３０と箱係合部２９とを係合させて押さえているので、おもりは不要であり、製造作業が容易であって広い製造作業場が不要になる。よって、太陽電池モジュール２０の量産性はよくなる。 If it does in this way, since the back surface engaging part 30 and the box engaging part 29 are always engaged and pressed, a joint surface does not shift | deviate or float. Therefore, the bonding strength of the terminal box is increased.
Moreover, since the back surface engaging part 30 and the box engaging part 29 are always engaged and pressed, a weight is unnecessary, manufacturing work is easy, and a wide manufacturing work place is unnecessary. Therefore, the mass productivity of the solar cell module 20 is improved.

また、接着剤によって裏面係合部３０と箱係合部２９とを接合させるので、裏面補強部材３１と端子箱２１との接合面に隙間ができにくく、水分は浸入しない。よって、太陽電池モジュール２０において、漏電は発生しなくなる。   Moreover, since the back surface engaging part 30 and the box engaging part 29 are joined with an adhesive agent, it is hard to make a clearance gap in the joint surface between the back surface reinforcing member 31 and the terminal box 21, and moisture does not enter. Therefore, no leakage occurs in the solar cell module 20.

また、裏面係合部３０は、裏面補強部材３１の一部が太陽電池素子の裏面側に突出して形成されるので、部品点数が減少する。よって、太陽電池モジュール２０において、コストは減少する。   Moreover, since the back surface engaging part 30 is formed so that a part of the back surface reinforcing member 31 protrudes to the back surface side of the solar cell element, the number of parts is reduced. Therefore, the cost is reduced in the solar cell module 20.

また、太陽電池モジュール２０の表面側に飛火した場合、開口部２７は１つの端子箱に対して１つ存在するだけなので、太陽電池モジュール２０の裏面側へ延焼しにくい。
また、裏面補強部材３１に裏面係合部３０が存在するので、端子箱２１の位置を決めやすい。 Further, when a fire is generated on the surface side of the solar cell module 20, there is only one opening 27 for one terminal box, so that it is difficult to spread to the back side of the solar cell module 20.
Moreover, since the back surface engaging part 30 exists in the back surface reinforcing member 31, the position of the terminal box 21 can be easily determined.

また、裏面係合部３０と箱係合部２９とを接合させるので、裏面補強部材３１と端子箱２１との接着面積が小さくても必要な接着力を得ることができる。
［第２の実施の形態］
次に、第１の実施の形態で使用した箱係合部２９でなく、他の箱係合部２９ａを使用した場合の、図２で示されたＡ部を拡大し、開口部２７について説明する。図５は、第２の実施の形態における開口部を示す図である。 Moreover, since the back surface engaging part 30 and the box engaging part 29 are joined, even if the adhesive surface area of the back surface reinforcement member 31 and the terminal box 21 is small, required adhesive force can be obtained.
[Second Embodiment]
Next, the portion A shown in FIG. 2 when the other box engaging portion 29a is used instead of the box engaging portion 29 used in the first embodiment will be enlarged and the opening 27 will be described. To do. FIG. 5 is a diagram showing an opening in the second embodiment.

ここで、裏面補強部材３１の一部は、電力取出部材用開口部２７ａを予め備えている。そして、電力取出部材用開口部２７ａから露出した太陽電池素子（図示せず）は、電力取出部材（図示せず）と接続されている。   Here, a part of the back surface reinforcing member 31 includes a power extraction member opening 27a in advance. And the solar cell element (not shown) exposed from the opening part 27a for electric power extraction members is connected with the electric power extraction member (not shown).

その後、裏面補強部材３１の電力取出部材用開口部２７ａの周辺は、切り込みを入れられる。なお、例えば、裏面補強部材３１は、厚さは０．８ｍｍであり、金属板としてはガルバリウム板である。また、裏面補強部材３１は、ＥＶＡ等によって太陽電池素子に張り合わされる。   Thereafter, the periphery of the power extraction member opening 27a of the back reinforcing member 31 is cut. For example, the back reinforcing member 31 has a thickness of 0.8 mm, and the metal plate is a galvalume plate. The back reinforcing member 31 is attached to the solar cell element by EVA or the like.

その後、裏面係合部３０ａは、切り込みを入れられた部分が、折り曲げ加工されて引き起こされて形成される。また、開口部２７は、裏面係合部３０ａが引き起こされることにより、太陽電池素子を露出させる。なお、後に裏面係合部３０ａとなる裏面補強部材３１の一部には、該当する裏面補強部材３１をＥＶＡ等から剥離するために、ＥＴＦＴ等を予めラミネートし、裏面係合部３０ａが引き起こされた後にＥＴＦＴ等を除去する。   Then, the back surface engaging part 30a is formed by bending the cut part and causing it. Moreover, the opening part 27 exposes the solar cell element when the back surface engaging part 30a is caused. In addition, in order to peel off the corresponding back surface reinforcing member 31 from EVA or the like, ETFT or the like is laminated in advance on a part of the back surface reinforcing member 31 to be the back surface engaging portion 30a later, and the back surface engaging portion 30a is caused. After that, ETFT and the like are removed.

次に、第１の実施の形態で使用した箱係合部２９でなく、他の箱係合部２９ａを使用した場合の、図２で示されたＡ部を拡大し、詳細に説明する。図６は、第２の実施の形態における図２のＡ部の拡大図である。   Next, the A portion shown in FIG. 2 when the other box engaging portion 29a is used instead of the box engaging portion 29 used in the first embodiment will be described in detail. FIG. 6 is an enlarged view of part A of FIG. 2 in the second embodiment.

ここで、箱係合部２９ａを有する端子箱２１ａに接着剤（図示せず）が塗布される。そして、端子箱２１ａは、開口部２７を覆うように配置される。そして、端子箱２１ａは、裏面係合部３０ａが折り曲げ加工され、接着剤によって裏面係合部３０ａと箱係合部２９ａとを接合させることで裏面補強部材３１に取り付けられる。   Here, an adhesive (not shown) is applied to the terminal box 21a having the box engaging portion 29a. And the terminal box 21a is arrange | positioned so that the opening part 27 may be covered. The terminal box 21a is attached to the back surface reinforcing member 31 by bending the back surface engaging part 30a and joining the back surface engaging part 30a and the box engaging part 29a with an adhesive.

このようにすると、常に裏面係合部３０ａと箱係合部２９ａとを係合させて押さえるので、接合面がずれたり浮いたりしない。よって、端子箱の接合強度が強くなる。
また、常に裏面係合部３０ａと箱係合部２９ａとを係合させて押さえているので、おもりは不要であり、製造作業が容易であって広い製造作業場が不要になる。よって、太陽電池モジュール２０の量産性はよくなる。 If it does in this way, since the back surface engaging part 30a and the box engaging part 29a are always engaged and pressed down, a joint surface does not shift or float. Therefore, the bonding strength of the terminal box is increased.
Further, since the back surface engaging portion 30a and the box engaging portion 29a are always engaged and pressed, the weight is unnecessary, the manufacturing work is easy, and a wide manufacturing work place is not required. Therefore, the mass productivity of the solar cell module 20 is improved.

また、接着剤によって裏面係合部３０ａと箱係合部２９ａとを接合させるので、裏面補強部材３１と端子箱２１ａとの接合面に隙間ができにくく、水分は浸入しない。よって、太陽電池モジュール２０において、漏電は発生しなくなる。   Moreover, since the back surface engaging part 30a and the box engaging part 29a are joined by an adhesive agent, it is difficult to form a gap on the joint surface between the back surface reinforcing member 31 and the terminal box 21a, and moisture does not enter. Therefore, no leakage occurs in the solar cell module 20.

また、裏面係合部３０ａは、裏面補強部材３１の一部が太陽電池素子の裏面側に突出して形成されるので、部品点数が減少する。よって、太陽電池モジュール２０において、コストは減少する。   Moreover, since the back surface engaging member 30a is formed so that a part of the back surface reinforcing member 31 protrudes toward the back surface side of the solar cell element, the number of parts is reduced. Therefore, the cost is reduced in the solar cell module 20.

また、太陽電池モジュール２０の表面側に飛火した場合、開口部２７は１つの端子箱に対して１つ存在するだけなので、太陽電池モジュール２０の裏面側へ延焼しにくい。
また、裏面補強部材３１に裏面係合部３０ａが存在するので、端子箱２１ａの位置を決めやすい。 Further, when a fire is generated on the surface side of the solar cell module 20, there is only one opening 27 for one terminal box, so that it is difficult to spread to the back side of the solar cell module 20.
Moreover, since the back surface engaging part 30a exists in the back surface reinforcing member 31, it is easy to determine the position of the terminal box 21a.

また、裏面係合部３０ａと箱係合部２９ａとを接合させるので、裏面補強部材３１と端子箱２１ａとの接着面積が小さくても必要な接着力を得ることができる。
また、裏面補強部材３１の一部は電力取出部材用開口部２７ａを予め備えるので、裏面係合部３０ａの形成前に、電力取出部材２８を太陽電池素子に接続することができる。 Moreover, since the back surface engaging part 30a and the box engaging part 29a are joined, even if the adhesive area of the back surface reinforcement member 31 and the terminal box 21a is small, required adhesive force can be obtained.
Moreover, since a part of the back surface reinforcing member 31 includes the power extraction member opening 27a in advance, the power extraction member 28 can be connected to the solar cell element before the back surface engagement portion 30a is formed.

本発明の概念図である。It is a conceptual diagram of this invention. 裏面側から見た太陽電池モジュールの構造図である。It is a structure figure of the solar cell module seen from the back side. 第１の実施の形態における開口部を示す図である。It is a figure which shows the opening part in 1st Embodiment. 第１の実施の形態における図２のＡ部の拡大図である。It is an enlarged view of the A section of FIG. 2 in 1st Embodiment. 第２の実施の形態における開口部を示す図である。It is a figure which shows the opening part in 2nd Embodiment. 第２の実施の形態における図２のＡ部の拡大図である。It is an enlarged view of the A section of FIG. 2 in 2nd Embodiment.

符号の説明Explanation of symbols

１０ 太陽電池モジュール
１１ 表面補強部材
１２ 太陽電池素子
１２ａ 電力取出部材
１３ 裏面補強部材
１３ａ 裏面係合部
１４ 端子箱
１４ａ 箱係合部
１４ｂ 固定部材
１５ ケーブル
１５ａ 芯線
DESCRIPTION OF SYMBOLS 10 Solar cell module 11 Surface reinforcement member 12 Solar cell element 12a Power extraction member 13 Back surface reinforcement member 13a Back surface engaging part 14 Terminal box 14a Box engaging part 14b Fixing member 15 Cable 15a Core wire

Claims (6)

光エネルギーを電気エネルギーに変換する太陽電池素子を有する太陽電池モジュールにおいて、
前記太陽電池素子の裏面側に形成された裏面補強部材と、
前記裏面補強部材に形成された開口部の周辺から、前記裏面補強部材の一部が前記太陽電池素子の裏面側に突出して形成された裏面係合部と、
箱係合部を有し、前記開口部を覆うように配置され、接着剤によって前記裏面係合部と前記箱係合部とを接合させることで前記裏面補強部材に取り付けられた端子箱と、
を有することを特徴とする太陽電池モジュール。 In a solar cell module having a solar cell element that converts light energy into electrical energy,
A back reinforcing member formed on the back side of the solar cell element;
From the periphery of the opening formed in the back surface reinforcing member, a back surface engaging portion formed by protruding a part of the back surface reinforcing member to the back surface side of the solar cell element;
A terminal box that has a box engaging portion, is arranged so as to cover the opening, and is attached to the back reinforcing member by bonding the back engaging portion and the box engaging portion with an adhesive;
A solar cell module comprising: 前記裏面補強部材は、金属板であることを特徴とする請求項１記載の太陽電池モジュール。   The solar cell module according to claim 1, wherein the back reinforcing member is a metal plate. 前記裏面係合部は、前記裏面補強部材の一部が折り曲げ加工されて形成されることを特徴とする請求項２記載の太陽電池モジュール。   The solar cell module according to claim 2, wherein the back surface engaging portion is formed by bending a part of the back surface reinforcing member. 前記端子箱は、前記裏面係合部が折り曲げ加工され、接着剤によって前記裏面係合部と前記箱係合部とを接合させることで前記裏面補強部材に取り付けられることを特徴とする請求項２記載の太陽電池モジュール。   3. The terminal box is attached to the back surface reinforcing member by bending the back surface engaging portion and joining the back surface engaging portion and the box engaging portion with an adhesive. The solar cell module described. 前記裏面係合部は、前記裏面補強部材の一部が、切り込みを入れられて引き起こされて形成され、前記開口部は、前記裏面係合部が引き起こされることにより、前記太陽電池素子を露出させることを特徴とする請求項１記載の太陽電池モジュール。   The back surface engaging portion is formed by a part of the back surface reinforcing member being cut and raised, and the opening portion exposes the solar cell element by the back surface engaging portion being raised. The solar cell module according to claim 1. 前記開口部は、１つの端子箱に対して１つだけ存在することを特徴とする請求項１記載の太陽電池モジュール。
2. The solar cell module according to claim 1, wherein only one opening exists for one terminal box.
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CN101834223A (en) * 2009-03-13 2010-09-15 三洋电机株式会社 The manufacture method of solar battery module
JP2010219170A (en) * 2009-03-13 2010-09-30 Sanyo Electric Co Ltd Solar cell module
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