JP2016225507A - Solar cell module - Google Patents

Solar cell module Download PDF

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JP2016225507A
JP2016225507A JP2015111654A JP2015111654A JP2016225507A JP 2016225507 A JP2016225507 A JP 2016225507A JP 2015111654 A JP2015111654 A JP 2015111654A JP 2015111654 A JP2015111654 A JP 2015111654A JP 2016225507 A JP2016225507 A JP 2016225507A
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solar cell
cell panel
sheet
covering
covering member
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JP6505507B2 (en
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公子 井村
Kimiko Imura
公子 井村
憲治 住永
Kenji Suminaga
憲治 住永
長島　裕志
Hiroshi Nagashima
裕志 長島
凌云 柴
Rin-Yun Chai
凌云 柴
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Solar Frontier KK
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Solar Frontier KK
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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

PROBLEM TO BE SOLVED: To provide a solar cell module having necessary insulation performance while providing a wide light receiving surface.SOLUTION: The solar cell module 10 includes a solar cell panel 20 having a solar cell element 22 therein and a covering member 60 having insulating properties and covering a peripheral portion of the solar cell panel. The solar cell panel 20 includes a first surface and a second surface opposite to the first surface. The covering member includes a first sheet-like member 61 covering the peripheral portion of the first surface and a second sheet-like member 62 covering the peripheral portion of the second surface. The peripheral portions of the first sheet-like member 61 and the second sheet-like member 62 each protrude outward from the solar cell panel and are bonded to each other. A creepage distance from the solar cell element 22 to the end portion of the covering member 60 has a length satisfying the predetermined insulation performance.SELECTED DRAWING: Figure 2

Description

本発明は、太陽電池モジュールに関する。   The present invention relates to a solar cell module.

太陽電池モジュールは、一般に、内部に太陽電池素子を備える太陽電池パネルと、太陽電池パネルの周縁部を囲うフレーム（金属フレーム等）とよばれる枠材とで構成される。   A solar cell module is generally composed of a solar cell panel having a solar cell element therein and a frame material called a frame (such as a metal frame) that surrounds the periphery of the solar cell panel.

太陽電池パネルでは、安全性の観点から、太陽電池素子で起電した電力によって使用者が感電しないよう、太陽電池素子から太陽電池パネルの端部までの間に、絶縁部材で覆われた一定距離（沿面距離と呼ばれる）を設け、絶縁性能を確保する必要がある。   In the solar cell panel, from the viewpoint of safety, a constant distance covered with an insulating member between the solar cell element and the end of the solar cell panel so that the user is not shocked by the electric power generated by the solar cell element. It is necessary to provide insulation performance (called creepage distance).

絶縁性能を確保する具体的な構造としては、例えば、太陽電池パネルの周縁部での絶縁性を向上させるために、周縁部にホットメルト接着剤で構成される被覆部を備える構造が提案されている（例えば、特許文献１参照）。   As a specific structure for ensuring insulation performance, for example, a structure including a covering portion made of a hot-melt adhesive at the periphery is proposed in order to improve insulation at the periphery of the solar cell panel. (For example, refer to Patent Document 1).

特開２０１０−１９２７４８号公報JP 2010-192748 A

ところで、太陽電池パネルにおいては、出力を向上させるため、できるだけ受光面を拡大させることが好ましい。しかしながら、上記の構造では、受光面を広げるために太陽電池素子の面積を拡大した場合、太陽電池素子と太陽電池パネルの端部との距離が短くなり、十分な絶縁性能が確保できなくなるおそれがある。   By the way, in a solar cell panel, in order to improve an output, it is preferable to enlarge a light-receiving surface as much as possible. However, in the above structure, when the area of the solar cell element is increased in order to widen the light receiving surface, the distance between the solar cell element and the end of the solar cell panel may be shortened, and sufficient insulation performance may not be ensured. is there.

本発明は、上記の点に鑑みてなされたものであり、広い受光面を備えつつ、必要な絶縁性能を有する太陽電池モジュールを提供することを課題とする。   This invention is made | formed in view of said point, and makes it a subject to provide the solar cell module which has required insulation performance, providing a wide light-receiving surface.

本太陽電池モジュールは、内部に太陽電池素子を備える太陽電池パネルと、絶縁性を有し、太陽電池パネルの周縁部を被覆する被覆部材と、を備えた太陽電池モジュールであって、太陽電池パネルは、第１の面と、第１の面の反対側の第２の面と、を備え、被覆部材は、第１の面の周縁部を被覆する第１のシート状部材と、第２の面の周縁部を被覆する第２のシート状部材と、を備え、第１のシート状部材及び第２のシート状部材の夫々の周縁部は、太陽電池パネルから外側にはみ出して互いに貼り合わせられ、太陽電池素子から被覆部材の端部までの沿面距離が、所定の絶縁性能を満たす長さを有することを要件とする。   The present solar cell module is a solar cell module including a solar cell panel including a solar cell element therein and a covering member that has an insulating property and covers a peripheral portion of the solar cell panel. Includes a first surface and a second surface opposite to the first surface, and the covering member includes a first sheet-like member that covers a peripheral portion of the first surface, and a second surface A second sheet-like member covering the peripheral edge of the surface, and the peripheral edges of the first sheet-like member and the second sheet-like member protrude outward from the solar cell panel and are bonded together. The creepage distance from the solar cell element to the end of the covering member is required to have a length that satisfies a predetermined insulating performance.

開示の技術によれば、広い受光面を備えつつ、必要な絶縁性能を有する太陽電池モジュールを提供できる。   According to the disclosed technology, it is possible to provide a solar cell module that has a wide light-receiving surface and has necessary insulation performance.

第１の実施の形態に係る太陽電池モジュールを例示する平面図である。It is a top view which illustrates the solar cell module which concerns on 1st Embodiment. 図１のＡ−Ａ線に沿う部分拡大断面図である。It is a partial expanded sectional view which follows the AA line of FIG. 第２の実施の形態に係る太陽電池モジュールを例示する部分拡大断面図である。It is a partial expanded sectional view which illustrates the solar cell module which concerns on 2nd Embodiment. 封止材の塗布について説明する図（その１）である。It is a figure (the 1) explaining application | coating of a sealing material. 封止材の塗布について説明する図（その２）である。It is FIG. (2) explaining application | coating of a sealing material.

以下、図面を参照して発明を実施するための形態について説明する。なお、各図面において、同一構成部分には同一符号を付し、重複した説明を省略する場合がある。   Hereinafter, embodiments for carrying out the invention will be described with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and the overlapping description may be abbreviate | omitted.

〈第１の実施の形態〉
図１は、第１の実施の形態に係る太陽電池モジュールを例示する平面図である。図２は、図１のＡ−Ａ線に沿う部分拡大断面図である。 <First Embodiment>
FIG. 1 is a plan view illustrating the solar cell module according to the first embodiment. FIG. 2 is a partially enlarged cross-sectional view taken along line AA in FIG.

図１及び図２を参照するに、太陽電池モジュール１０は、太陽電池パネル２０と、フレーム３０とを有する。太陽電池モジュール１０は、サブストレート構造の薄膜太陽電池モジュールである。   Referring to FIGS. 1 and 2, the solar cell module 10 includes a solar cell panel 20 and a frame 30. The solar cell module 10 is a thin film solar cell module having a substrate structure.

太陽電池パネル２０は、基板２１と、太陽電池素子２２と、表面保護材２３と、封止材２４とを有する。太陽電池パネル２０の平面形状は、例えば、矩形状とすることができる。太陽電池パネル２０の平面形状は矩形状には限定されないが、以降では、太陽電池パネル２０の平面形状が矩形状である場合を例にして説明をする。なお、平面形状とは、太陽電池パネル２０の受光面の法線方向から対象物を視たときの形状を指すものとする。   The solar cell panel 20 includes a substrate 21, a solar cell element 22, a surface protective material 23, and a sealing material 24. The planar shape of the solar cell panel 20 can be a rectangular shape, for example. Although the planar shape of the solar cell panel 20 is not limited to a rectangular shape, hereinafter, the case where the planar shape of the solar cell panel 20 is a rectangular shape will be described as an example. In addition, a planar shape shall point out the shape when a target object is seen from the normal line direction of the light-receiving surface of the solar cell panel 20. FIG.

太陽電池パネル２０において、基板２１は、例えば、厚さが１．０〜３．０ｍｍ程度のガラス基板、金属基板、樹脂基板等であり、基板２１上には太陽電池素子２２が形成されている。太陽電池素子２２は、例えば、電極層や発電層等の薄膜が複数層積層されたものである。   In the solar cell panel 20, the substrate 21 is, for example, a glass substrate, a metal substrate, a resin substrate, or the like having a thickness of about 1.0 to 3.0 mm, and the solar cell element 22 is formed on the substrate 21. . For example, the solar cell element 22 is formed by laminating a plurality of thin films such as an electrode layer and a power generation layer.

基板２１の太陽電池素子２２が形成されている面には、太陽電池素子２２の受光面側を保護する表面保護材２３が封止材２４によって接着されている。表面保護材２３としては、例えば、厚さが０．５〜４．０ｍｍ程度の白板強化ガラス板や透明樹脂板等を用いることができる。封止材２４の材料としては、例えば、ＥＶＡ（Ethylene-vinyl acetate）やＰＶＢ（Polyvinyl butyral）等を用いることができる。封止材２４の厚さは、例えば、０．２〜１．０ｍｍ程度とすることができる。なお、太陽電池パネル２０では、基板２１が、太陽電池素子２２の裏面側を保護する裏面保護材としても機能している。   A surface protective material 23 for protecting the light receiving surface side of the solar cell element 22 is bonded to the surface of the substrate 21 on which the solar cell element 22 is formed by a sealing material 24. As the surface protective material 23, for example, a white plate reinforced glass plate or a transparent resin plate having a thickness of about 0.5 to 4.0 mm can be used. As the material of the sealing material 24, for example, EVA (Ethylene-vinyl acetate), PVB (Polyvinyl butyral), or the like can be used. The thickness of the sealing material 24 can be set to, for example, about 0.2 to 1.0 mm. In the solar cell panel 20, the substrate 21 also functions as a back surface protection material that protects the back surface side of the solar cell element 22.

フレーム３０は、太陽電池パネル２０の周縁部を囲むように取り付けられている枠部材である。フレーム３０は、太陽電池パネル２０の強度を向上すると共に、太陽電池パネル２０の周縁部の受光面、側端面、及び裏面を覆って太陽電池パネル２０の周囲を保護する。   The frame 30 is a frame member attached so as to surround the peripheral edge portion of the solar cell panel 20. The frame 30 improves the strength of the solar cell panel 20 and protects the periphery of the solar cell panel 20 by covering the light receiving surface, the side end surface, and the back surface of the peripheral portion of the solar cell panel 20.

フレーム３０は、太陽電池パネル２０を囲む、対向配置された２つの長辺フレーム４０と、対向配置された２つの短辺フレーム５０とを備えている。長辺フレーム４０と短辺フレーム５０とは互いに隣接して接続され、フレーム３０を構成する。平面形状が矩形状である太陽電池パネル２０の１辺を長辺フレーム４０が保護し、この１辺と直角をなす他辺を短辺フレーム５０が保護する。このとき、長辺フレーム４０と短辺フレーム５０とは直角に接続される。   The frame 30 includes two long-side frames 40 arranged opposite to each other and two short-side frames 50 arranged opposite to each other so as to surround the solar cell panel 20. The long-side frame 40 and the short-side frame 50 are connected adjacent to each other to form the frame 30. The long side frame 40 protects one side of the solar cell panel 20 having a rectangular planar shape, and the short side frame 50 protects the other side perpendicular to the one side. At this time, the long side frame 40 and the short side frame 50 are connected at a right angle.

長辺フレーム４０は、例えばアルミ鋼材や樹脂から形成され、押し出し成形等によって断面が略同形状とされた長尺部材である。長辺フレーム４０は、太陽電池パネル２０の受光面を支持する上フランジ４１と、太陽電池パネル２０の裏面を支持する裏面フランジ４２と、太陽電池パネル２０の側端面を保護する側壁部４３とを有する。   The long side frame 40 is a long member made of, for example, an aluminum steel material or a resin and having a substantially identical cross section by extrusion molding or the like. The long side frame 40 includes an upper flange 41 that supports the light receiving surface of the solar cell panel 20, a back surface flange 42 that supports the back surface of the solar cell panel 20, and a side wall portion 43 that protects the side end surface of the solar cell panel 20. Have.

上フランジ４１と裏面フランジ４２とは側壁部４３から水平方向（太陽電池モジュール１０の内側方向）に伸出し、太陽電池パネル２０が嵌め込まれる嵌合溝４０ｘを形成している。又、側壁部４３の下端には底辺フランジ４４が水平方向に伸出している。なお、図２の例では、底辺フランジ４４が太陽電池モジュール１０の内側に水平方向に伸出しているが、底辺フランジ４４は太陽電池モジュール１０の外側に水平方向に伸出してもよい。   The upper flange 41 and the back flange 42 extend in the horizontal direction (inner direction of the solar cell module 10) from the side wall portion 43 to form a fitting groove 40x into which the solar cell panel 20 is fitted. A bottom flange 44 extends in the horizontal direction at the lower end of the side wall 43. In the example of FIG. 2, the bottom flange 44 extends horizontally inside the solar cell module 10, but the bottom flange 44 may extend horizontally outside the solar cell module 10.

太陽電池パネル２０の周縁部は、絶縁性を有する被覆部材６０により被覆されている。より詳しくは、被覆部材６０は、太陽電池パネル２０の一方の面（受光面）の周縁部、全側面及び他方の面（裏面）の周縁部を連続的に覆うように設けられている。被覆部材６０を設ける目的は、太陽電池パネル２０の側面の絶縁機能の低下を補うことにある。被覆部材６０により、太陽電池パネル２０の絶縁機能が向上し、太陽電池モジュール１０の長期信頼性が確保される。   The peripheral edge portion of the solar cell panel 20 is covered with a covering member 60 having insulating properties. More specifically, the covering member 60 is provided so as to continuously cover the peripheral portion of one surface (light receiving surface), the entire side surface, and the peripheral portion of the other surface (back surface) of the solar cell panel 20. The purpose of providing the covering member 60 is to compensate for a decrease in the insulating function of the side surface of the solar cell panel 20. The covering member 60 improves the insulation function of the solar cell panel 20 and ensures the long-term reliability of the solar cell module 10.

被覆部材６０は、第１のシート状部材６１と、第２のシート状部材６２とを備えている。第１のシート状部材６１は、ラミネート時の加熱により接着性を生じ、ガラス、樹脂、金属等と接着するものであり、接着層６１１と防湿層６１２とを有する可撓性の部材である。同様に、第２のシート状部材６２は、ラミネート時の加熱により接着性を生じ、ガラス、樹脂、金属等と接着するものであり、接着層６２１と防湿層６２２とを有する可撓性の部材である。   The covering member 60 includes a first sheet-like member 61 and a second sheet-like member 62. The first sheet-like member 61 is a flexible member having an adhesive layer 611 and a moisture-proof layer 612, which generates adhesiveness by heating during lamination and adheres to glass, resin, metal, or the like. Similarly, the second sheet-like member 62 is an adhesive member that generates adhesiveness by heating during lamination and adheres to glass, resin, metal, or the like, and has an adhesive layer 621 and a moisture-proof layer 622. It is.

接着層６１１及び６２１としては、例えば、エポキシ樹脂系やアクリル樹脂系の熱硬化性接着材、ポリアミド樹脂系、ポリイミド樹脂系や、ポリイソブチレン等のポリオレフィン系の熱可塑性接着材等を用いることができる。防湿層６１２及び６２２は、可撓性のある基材であって、例えば、ポリエチレンテレフタレート（ＰＥＴ）、エチレンテトラフルオロエチレン共重合体（ＥＴＦＥ）、ポリテトラフルオロエチレン（ＰＴＦＥ）、ポリフッ化ビニル（ＰＶＦ）、ポリカーボネート、ポリオレフィン等の樹脂を用いることができる。   As the adhesive layers 611 and 621, for example, epoxy resin-based or acrylic resin-based thermosetting adhesive, polyamide resin-based, polyimide resin-based, polyolefin-based thermoplastic adhesive such as polyisobutylene, or the like can be used. . The moisture-proof layers 612 and 622 are flexible base materials such as polyethylene terephthalate (PET), ethylene tetrafluoroethylene copolymer (ETFE), polytetrafluoroethylene (PTFE), and polyvinyl fluoride (PVF). ), Resins such as polycarbonate and polyolefin can be used.

なお、太陽電池パネル２０の全側面は、太陽電池パネル２０の周縁部から延在した第１のシート状部材６１及び第２のシート状部材６２のうちの少なくとも一方により被覆されていればよい。例えば、図２では、太陽電池パネル２０の全側面は第１のシート状部材６１により被覆されているが、太陽電池パネル２０の全側面は第２のシート状部材６２により被覆されてもよい。或いは、第１のシート状部材６１及び第２のシート状部材６２の両方により被覆されてもよい。   In addition, all the side surfaces of the solar cell panel 20 should just be coat | covered with at least one of the 1st sheet-like member 61 and the 2nd sheet-like member 62 extended from the peripheral part of the solar cell panel 20. FIG. For example, in FIG. 2, all the side surfaces of the solar cell panel 20 are covered with the first sheet-like member 61, but all the side surfaces of the solar cell panel 20 may be covered with the second sheet-like member 62. Or you may coat | cover with both the 1st sheet-like member 61 and the 2nd sheet-like member 62. FIG.

又、第１のシート状部材６１及び第２のシート状部材６２の夫々の周縁部は、太陽電池パネル２０から外側にはみ出して互いに貼り合わせられており、太陽電池素子２２から被覆部材６０の端部６０ｅまでの沿面距離が、所定の絶縁性能を満たす長さを有している。つまり、所定の沿面距離が確保されている。   Further, the peripheral portions of the first sheet-like member 61 and the second sheet-like member 62 protrude outward from the solar cell panel 20 and are bonded to each other. The creepage distance to the portion 60e has a length that satisfies a predetermined insulation performance. That is, a predetermined creepage distance is secured.

太陽電池パネル２０の周縁部は、被覆部材６０の太陽電池パネル２０から外側にはみ出して互いに貼り合わせられた部分を折り曲げた状態で、長辺フレーム４０の溝部４０ｘに嵌め込まれている。なお、被覆部材６０は、所定の幅のロールを所定の長さにカットして第１のシート状部材６１及び第２のシート状部材６２を作製し、それらを貼り合わせて形成することができる。被覆部材６０の端部６０ｅに端末処理を施し、太陽電池パネル２０の端部から所定の長さを確保したうえで切り落としても良い。   The peripheral edge portion of the solar cell panel 20 is fitted into the groove portion 40x of the long side frame 40 in a state where the portions of the covering member 60 that protrude outward from the solar cell panel 20 and are bonded together are bent. The covering member 60 can be formed by cutting a roll having a predetermined width into a predetermined length to produce the first sheet-like member 61 and the second sheet-like member 62 and bonding them together. . The end 60e of the covering member 60 may be subjected to a terminal process to secure a predetermined length from the end of the solar cell panel 20 and then cut off.

太陽電池パネル２０の基板２１と長辺フレーム４０の裏面フランジ４２とは接着剤７０により接着されている。長辺フレーム４０の側壁部４３と被覆部材６０とが形成する空間部には、封止材８０を充填することが好ましい。封止材８０を充填することにより、水分侵入を防ぐ効果等が得られる。封止材８０としては、例えば、シリコーンやブチルゴム等を用いることができる。   The substrate 21 of the solar cell panel 20 and the back surface flange 42 of the long side frame 40 are bonded by an adhesive 70. The space formed by the side wall 43 of the long side frame 40 and the covering member 60 is preferably filled with the sealing material 80. By filling the sealing material 80, an effect of preventing moisture intrusion and the like can be obtained. As the sealing material 80, for example, silicone or butyl rubber can be used.

なお、ここでは長辺フレーム４０側の断面構造について説明したが、短辺フレーム５０側の断面構造についても同様である。   Here, the cross-sectional structure on the long-side frame 40 side has been described, but the same applies to the cross-sectional structure on the short-side frame 50 side.

このように、太陽電池モジュール１０では、太陽電池パネル２０の周縁部を被覆する被覆部材６０が、太陽電池パネル２０から外側にはみ出しており、太陽電池素子２２から被覆部材６０の端部６０ｅまでの沿面距離が、所定の絶縁性能を満たす長さを有している。これにより、太陽電池素子２２から太陽電池パネル２０の端部までの沿面距離がかせげるため、必要な絶縁性能を確保できる。   Thus, in the solar cell module 10, the covering member 60 that covers the peripheral portion of the solar cell panel 20 protrudes outward from the solar cell panel 20, and extends from the solar cell element 22 to the end portion 60 e of the covering member 60. The creepage distance has a length that satisfies a predetermined insulation performance. Thereby, since the creeping distance from the solar cell element 22 to the edge part of the solar cell panel 20 can be increased, required insulation performance can be ensured.

〈第２の実施の形態〉
第２の実施の形態では、複数の短尺の被覆部材の繋ぎ目を封止材により封止する例を示す。なお、第２の実施の形態において、既に説明した実施の形態と同一構成部についての説明は省略する場合がある。 <Second Embodiment>
In the second embodiment, an example in which joints of a plurality of short covering members are sealed with a sealing material is shown. In the second embodiment, description of the same components as those of the already described embodiments may be omitted.

図３は、第２の実施の形態に係る太陽電池モジュールを例示する部分拡大断面図であり、後述の図５（ｂ）において封止材９０により封止された部分近傍における長辺フレーム４０の短手方向の断面を示している。   FIG. 3 is a partial enlarged cross-sectional view illustrating the solar cell module according to the second embodiment. The long side frame 40 in the vicinity of the portion sealed by the sealing material 90 in FIG. A cross section in the short direction is shown.

図３を参照するに、太陽電池モジュール１０Ａは、複数の短尺の被覆部材６０の繋ぎ目を封止材９０により封止している点が太陽電池モジュール１０（図２等参照）と相違する。封止材９０としては、例えば、シリコーンやブチルゴム等を用いることができる。   Referring to FIG. 3, the solar cell module 10 </ b> A is different from the solar cell module 10 (see FIG. 2 and the like) in that the joints of a plurality of short covering members 60 are sealed with a sealing material 90. As the sealing material 90, for example, silicone, butyl rubber, or the like can be used.

封止材９０は、例えば、図４及び図５のようにして塗布することができる。なお、図４及び図５は、太陽電池パネル２０を裏面側（受光面とは反対側）から視た図である。   The sealing material 90 can be applied, for example, as shown in FIGS. 4 and 5 are views of the solar cell panel 20 viewed from the back surface side (the side opposite to the light receiving surface).

まず、図４（ａ）では、例えば、短尺の第１のシート状部材６１及び第２のシート状部材６２を夫々複数枚用意し、太陽電池パネル２０の周縁部の４辺を両面側から被覆して、被覆部材６０を枠状に形成する。被覆部材６０は、例えば、ラミネート装置を用いて形成できる。   First, in FIG. 4A, for example, a plurality of short first sheet-like members 61 and second sheet-like members 62 are prepared, and the four sides of the peripheral portion of the solar cell panel 20 are covered from both sides. Then, the covering member 60 is formed in a frame shape. The covering member 60 can be formed using, for example, a laminating apparatus.

次に、図４（ｂ）では、太陽電池パネル２０の裏面側において、短尺の被覆部材６０の繋ぎ目（枠状の被覆部材６０の４隅）に適量の封止材９０を塗布する。   Next, in FIG. 4B, an appropriate amount of sealing material 90 is applied to the joints (four corners of the frame-shaped covering member 60) of the short covering member 60 on the back surface side of the solar cell panel 20.

次に、図５（ａ）では、短手方向の被覆部材６０を太陽電池パネル２０の裏面側に折り曲げ、続いて、長手方向の被覆部材６０を太陽電池パネル２０の裏面側に折り曲げる。これにより、短尺の被覆部材６０の繋ぎ目において、被覆部材６０の折り曲げ部分の間に封止材９０が挟持される。なお、長手方向の被覆部材６０を先に折り曲げ、その後、短手方向の被覆部材６０を折り曲げてもよい。   Next, in FIG. 5A, the covering member 60 in the short direction is bent toward the back side of the solar cell panel 20, and then the covering member 60 in the longitudinal direction is bent toward the back side of the solar cell panel 20. Accordingly, the sealing material 90 is sandwiched between the bent portions of the covering member 60 at the joints of the short covering members 60. Note that the covering member 60 in the longitudinal direction may be bent first, and then the covering member 60 in the short direction may be bent.

次に、図５（ｂ）では、夫々の被覆部材６０の先端部分を覆うように適量の封止材８０を塗布する。封止材８０は、夫々の被覆部材６０の長手方向の両端まで塗布するとはみ出すおそれがあるため、長手方向の両端には塗布しないことが好ましい。   Next, in FIG. 5B, an appropriate amount of sealing material 80 is applied so as to cover the tip portion of each covering member 60. Since the sealing material 80 may protrude from both ends in the longitudinal direction of the respective covering members 60, it is preferable not to apply the sealing material 80 to both ends in the longitudinal direction.

図５（ｂ）の後、封止材８０及び９０が塗布された太陽電池パネル２０は、フレーム３０に嵌め込まれ、封止材８０及び９０が硬化する。これにより、短尺の被覆部材６０の繋ぎ目は封止材９０により封止される。又、長辺フレーム４０の側壁部４３と被覆部材６０とが形成する空間部は封止材８０により封止される（短辺フレーム５０についても同様）。   After FIG.5 (b), the solar cell panel 20 with which the sealing materials 80 and 90 were apply | coated is inserted in the flame | frame 30, and the sealing materials 80 and 90 harden | cure. Thereby, the joint of the short covering member 60 is sealed by the sealing material 90. Further, the space formed by the side wall portion 43 of the long side frame 40 and the covering member 60 is sealed with a sealing material 80 (the same applies to the short side frame 50).

このように、太陽電池パネル２０の外周に沿って複数の短尺の被覆部材６０を繋ぎ合わせて太陽電池パネル２０の全周を被覆した太陽電池モジュール１０Ａにおいて、短尺の被覆部材６０の繋ぎ目を封止材９０により封止する。これにより、短尺の被覆部材６０の繋ぎ目からの水分の侵入を防ぐことが可能となり、被覆部材６０の劣化を防止できる。   Thus, in the solar cell module 10A in which a plurality of short covering members 60 are connected along the outer periphery of the solar cell panel 20 to cover the entire periphery of the solar cell panel 20, the joints of the short covering members 60 are sealed. Sealing is performed with a stopper 90. As a result, it is possible to prevent moisture from entering from the joint of the short covering member 60, and to prevent deterioration of the covering member 60.

以上、好ましい実施の形態について詳説したが、上述した実施の形態に制限されることはなく、特許請求の範囲に記載された範囲を逸脱することなく、上述した実施の形態に種々の変形及び置換を加えることができる。   The preferred embodiment has been described in detail above. However, the present invention is not limited to the above-described embodiment, and various modifications and replacements are made to the above-described embodiment without departing from the scope described in the claims. Can be added.

１０、１０Ａ 太陽電池モジュール
２０ 太陽電池パネル
２１ 基板
２２ 太陽電池素子
２３ 表面保護材
２４、８０、９０ 封止材
３０ フレーム
４０ 長辺フレーム
４０ｘ 嵌合溝
４１ 上フランジ
４２ 裏面フランジ
４３ 側壁部
４４ 底辺フランジ
５０ 短辺フレーム
６０ 被覆部材
６１ 第１のシート状部材
６２ 第２のシート状部材
７０ 接着剤
６１１、６２１ 接着層
６１２、６２２ 防湿層 10, 10A Solar cell module 20 Solar cell panel 21 Substrate 22 Solar cell element 23 Surface protective material 24, 80, 90 Sealing material 30 Frame 40 Long side frame 40x Fitting groove 41 Upper flange 42 Back surface flange 43 Side wall portion 44 Bottom side flange 50 Short-side frame 60 Cover member 61 First sheet-like member 62 Second sheet-like member 70 Adhesives 611 and 621 Adhesive layers 612 and 622 Moisture-proof layer

Claims (3)

内部に太陽電池素子を備える太陽電池パネルと、絶縁性を有し、前記太陽電池パネルの周縁部を被覆する被覆部材と、を備えた太陽電池モジュールであって、
前記太陽電池パネルは、第１の面と、前記第１の面の反対側の第２の面と、を備え、
前記被覆部材は、前記第１の面の周縁部を被覆する第１のシート状部材と、前記第２の面の周縁部を被覆する第２のシート状部材と、を備え、前記第１のシート状部材及び前記第２のシート状部材の夫々の周縁部は、前記太陽電池パネルから外側にはみ出して互いに貼り合わせられ、前記太陽電池素子から前記被覆部材の端部までの沿面距離が、所定の絶縁性能を満たす長さを有することを特徴とする太陽電池モジュール。 A solar cell module comprising a solar cell panel provided with a solar cell element therein, and a covering member that has insulating properties and covers a peripheral edge of the solar cell panel,
The solar cell panel includes a first surface and a second surface opposite to the first surface,
The covering member includes a first sheet-like member that covers a peripheral edge portion of the first surface, and a second sheet-like member that covers a peripheral edge portion of the second surface. The respective peripheral portions of the sheet-like member and the second sheet-like member protrude outward from the solar cell panel and are bonded to each other, and the creepage distance from the solar cell element to the end of the covering member is predetermined. A solar cell module characterized by having a length satisfying the insulating performance. 前記被覆部材は、前記太陽電池パネルの外周に沿って複数の短尺被覆部材を繋ぎ合わせて、前記太陽電池パネルの全周を被覆しており、
前記短尺被覆部材の繋ぎ目は封止材により封止されてい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 covering member joins a plurality of short covering members along the outer periphery of the solar cell panel to cover the entire periphery of the solar cell panel,
The solar cell module according to claim 1, wherein the joint of the short covering members is sealed with a sealing material. 前記太陽電池パネルの周囲を保護する枠部材を有し、
前記太陽電池パネルの周縁部は、前記被覆部材の前記太陽電池パネルから外側にはみ出して互いに貼り合わせられた部分を折り曲げた状態で、前記枠部材に嵌め込まれていることを特徴とする請求項１又は２記載の太陽電池モジュール。 A frame member protecting the periphery of the solar cell panel;
2. The peripheral portion of the solar cell panel is fitted into the frame member in a state in which portions of the covering member that protrude outward from the solar cell panel and are bonded to each other are folded. Or the solar cell module of 2.
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