JP6215562B2 - Solar cell module - Google Patents
Solar cell module Download PDFInfo
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- JP6215562B2 JP6215562B2 JP2013090074A JP2013090074A JP6215562B2 JP 6215562 B2 JP6215562 B2 JP 6215562B2 JP 2013090074 A JP2013090074 A JP 2013090074A JP 2013090074 A JP2013090074 A JP 2013090074A JP 6215562 B2 JP6215562 B2 JP 6215562B2
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- solar cell
- cell panel
- fitting
- receiving surface
- light receiving
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Links
- 238000013459 approach Methods 0.000 claims description 4
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 description 18
- 239000000428 dust Substances 0.000 description 15
- 238000007789 sealing Methods 0.000 description 15
- 239000004576 sand Substances 0.000 description 11
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S30/00—Structural details of PV modules other than those related to light conversion
- H02S30/10—Frame structures
-
- 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
Description
本発明は太陽電池モジュールに関するものである。 The present invention relates to a solar cell module.
太陽電池モジュールは、一般的に、太陽電池パネルと枠体とにより構成されている。図７は、従来の太陽電池モジュールの端部の断面を示す図である。図７において、太陽電池モジュール５０は太陽電池パネル５１と枠体５２からなる。太陽電池パネル５１の表面側である受光面ガラス５１ａ上（図面では下側となっている）に、熱硬化性樹脂であるＥＶＡ（エチレンビニルアセテート）でなる受光面側封止層５１ｂ、多結晶シリコンにより形成された太陽電池セル５１ｄ、ＥＶＡでなる裏面側封止層５１ｃ、裏面側封止耐候性フィルム５１ｅがこの順に積層されて、一体化ラミネート加工されたスーパーストレート型構造である。このように、太陽電池パネル５１は、耐候性が確保された矩形状で、厚さが５ｍｍ程度の薄板として構成されている。尚、上記太陽電池セル５１ｄは、単結晶シリコンやアモルファスシリコン等で形成されたものであってもよい。 The solar cell module is generally composed of a solar cell panel and a frame. FIG. 7 is a view showing a cross section of an end portion of a conventional solar cell module. In FIG. 7, the solar cell module 50 includes a solar cell panel 51 and a frame body 52. A light-receiving surface side sealing layer 51b made of EVA (ethylene vinyl acetate), which is a thermosetting resin, is formed on the light-receiving surface glass 51a (the lower side in the drawing) which is the surface side of the solar cell panel 51. A solar cell 51d made of silicon, a back side sealing layer 51c made of EVA, and a back side sealing weather resistant film 51e are laminated in this order, and have a super straight type structure that is integrally laminated. As described above, the solar cell panel 51 is formed as a thin plate having a rectangular shape having a weather resistance and a thickness of about 5 mm. The solar battery cell 51d may be made of single crystal silicon, amorphous silicon, or the like.
端面封止部材５３は、太陽電池パネル５１の端部５１ｆの外形に沿って形成された枠形状をしており、エラストマー樹脂や、シリコン樹脂等の樹脂により形成されている。又、端面封止部材５３は、太陽電池パネル５１の表面側に当接する上側封止片５３ａと、太陽電池パネル５１の裏面側に当接する下側封止片５３ｂと、太陽電池パネル５１の端部５１ｆの端面に当接する横側封止片５３ｃとからなる断面略コ字状に形成されており、このコ字状の部分が溝部５３ｆ（封止用溝部）を構成している。この溝部５３ｆに、太陽電池パネル５１の端部５１ｆが嵌め込まれて封止される。 The end surface sealing member 53 has a frame shape formed along the outer shape of the end portion 51f of the solar cell panel 51, and is formed of a resin such as an elastomer resin or a silicon resin. The end surface sealing member 53 includes an upper sealing piece 53 a that contacts the front surface side of the solar cell panel 51, a lower sealing piece 53 b that contacts the back surface side of the solar cell panel 51, and an end of the solar cell panel 51. It is formed in a substantially U-shaped cross section comprising a lateral sealing piece 53c that contacts the end surface of the portion 51f, and this U-shaped portion constitutes a groove 53f (sealing groove). The end portion 51f of the solar cell panel 51 is fitted into the groove portion 53f and sealed.
しかしながら、前述のような構造では、枠体と受光面ガラスの間の隙間に充填されている封止部材の厚さによって、枠体と受光面ガラスの間に段差ができる。段差には、砂や塵を吸着しやすく柔らかい封止樹脂が詰まっており、その表面に砂や塵が吸着し、封止樹脂が起点となって汚れが光電変換素子全面まで及んで太陽電池モジュールの発電性能を損なう怖れがあった。また、段差に溜まった砂や塵は、降雨などによっても取り除きにくく、それらがガラス表面に移動して、太陽電池前面のガラスが汚れ、発電量が低下する原因となっていた。 However, in the structure as described above, there is a step between the frame and the light receiving surface glass depending on the thickness of the sealing member filled in the gap between the frame and the light receiving surface glass. The step is clogged with soft sealing resin that easily adsorbs sand and dust, and sand and dust are adsorbed on the surface, and the sealing resin is the starting point and the dirt reaches the entire surface of the photoelectric conversion element. There was a fear of impairing the power generation performance. In addition, sand and dust accumulated in the steps are difficult to remove due to rainfall and the like, and they move to the glass surface, causing the glass in front of the solar cell to become dirty and reduce the amount of power generation.
本発明は、上述の問題点を鑑みなされたものであり、受光面に砂や塵がたまりにくい太陽電池モジュールを提供するものである。 The present invention has been made in view of the above-described problems, and provides a solar cell module in which sand and dust are unlikely to collect on a light receiving surface.
本発明の太陽電池モジュールは、太陽電池パネルと、太陽電池パネルの端部に嵌合する枠体と、を有する太陽電池モジュールであって、枠体は、太陽電池パネルの端部と嵌合するための嵌合部を有し、嵌合部は上壁と下壁とを含み、上壁は、太陽電池パネルの受光面に沿う上辺部と、上辺部から延設され先端に向かうにつれ受光面に近づき上辺部より下方で受光面に当接するエッジ部と、を有し、下壁は、嵌合部の奥部から入口に向かって下り傾斜する第１の傾斜部と、第１の傾斜部よりも嵌合部の入口の側にあって第１の傾斜部の最下点以下の高さから嵌合部入口に向かって下り傾斜する第２の傾斜部と、を有し、第１の傾斜部は少なくともその一部が上辺部の下方にあって太陽電池パネルの裏面端部の形状に応じて傾斜しており、第２の傾斜部は少なくともその一部がエッジ部の下方にあってエッジ部の形状に応じて傾斜しており、両面に接着層を有するテープ状の弾性部材が、太陽電池パネルの端部の受光面側と端面と裏面側とを覆っており、太陽電池パネルの端部が弾性部材に覆われた状態で嵌合部に嵌合していないときの厚さよりも嵌合部の入口でのエッジ部と下壁との間の間隔が大きくされ、嵌合部の奥部での上辺部と下壁との間の間隔が入口での間隔よりも小さく且つ太陽電池パネルの端部のみの厚さよりも大きくされているものである。 The solar cell module of the present invention is a solar cell module having a solar cell panel and a frame body fitted to the end portion of the solar cell panel, and the frame body is fitted to the end portion of the solar cell panel. A fitting portion, the fitting portion includes an upper wall and a lower wall, the upper wall extending along the light receiving surface of the solar cell panel, and extending from the upper side portion toward the tip. The lower wall has a first inclined portion that is inclined downward from the inner portion of the fitting portion toward the inlet, and a first inclined portion. A second inclined portion that is closer to the inlet of the fitting portion and is inclined downward toward the fitting portion inlet from a height below the lowest point of the first inclined portion. The inclined portion is at least partly below the upper side portion and is inclined according to the shape of the back end portion of the solar cell panel. Slope portion is inclined in accordance with the shape of the edge portion there below at least a portion of the edge portion, tape-like elastic member having an adhesive layer on both sides, the light-receiving surface side of the end portion of the solar cell panel And the edge portion at the entrance of the fitting portion than the thickness when the end portion of the solar cell panel is covered with the elastic member and is not fitted to the fitting portion. The distance between the lower wall is increased, and the distance between the upper side and the lower wall at the back of the fitting portion is smaller than the distance at the entrance and larger than the thickness of only the end portion of the solar cell panel. It is what has been.
また、本発明の太陽電池モジュールは、エッジ部が先端に向かって細くなり、エッジ部の上面と太陽電池パネルの受光面とでなす角が鈍角とされているものを含む。 Moreover, the solar cell module of this invention contains what the edge part becomes thin toward the front-end | tip, and the angle made by the upper surface of an edge part and the light-receiving surface of a solar cell panel is made into an obtuse angle .
また、本発明の太陽電池モジュールは、第１の傾斜部と第２の傾斜部との傾斜角度が異なるものを含む。 Moreover, the solar cell module of this invention contains what differs in the inclination-angle of a 1st inclination part and a 2nd inclination part .
本発明により、砂や塵が太陽電池パネル表面に堆積しにくくなり、信頼性の高い太陽電池モジュールを提供することができる。 According to the present invention, sand and dust hardly accumulate on the surface of the solar cell panel, and a highly reliable solar cell module can be provided.
（実施の形態１）
以下、図面を参照しつつ、本発明の実施の形態に係る説明する。以下の説明では同一の部品には同一の符号を付してある。それらの名称および機能も同じである。したがって、それらについて詳細な説明は繰り返さない。
(Embodiment 1)
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.
図１は、本発明の太陽電池モジュールを示す平面図である。図１において、太陽電池モジュール１は、太陽電池パネル１０と枠体２０からなる。太陽電池パネル１０の各辺には、端部に太陽電池パネル１０を支持するための枠体２０が嵌めこまれて取り付けられ、太陽電池モジュール１を形成している。枠体２０は、アルミニウムやステンレスなど耐侯性のある金属が用いられる。 FIG. 1 is a plan view showing a solar cell module of the present invention. In FIG. 1, the solar cell module 1 includes a solar cell panel 10 and a frame body 20. A frame 20 for supporting the solar cell panel 10 is fitted and attached to each side of the solar cell panel 10 to form the solar cell module 1. The frame 20 is made of a metal having weather resistance such as aluminum or stainless steel.
図２は、本発明の太陽電池モジュールを構成する太陽電池パネル端部の断面図である。図２において、太陽電池パネル１０は、受光面側の透光性絶縁基板である受光面ガラス１１と、裏面側の耐候性フィルム１２の間に、結晶系太陽電池やアモルファス太陽電池などの光電変換素子１３をＰＶＢ（ポリビニルブチラール）やＥＶＡなどの透明樹脂１４とともに封止して形成される。封止はラミネータを用いて行われるが、ラミネート工程において、ＥＶＡが加熱されて溶けて流動化し、端部のＥＶＡは外に逃げるよう移動するため、裏面の形状が、端にいくにつれ薄くなるように形成される。そのため、太陽電池パネル１０の裏面の端部は、端面に近づくにしたがって、透明樹脂１４の厚さが薄くなり、傾斜した形状を有している。例えば、受光面ガラス１１の厚みを２．８mm、パネル中央部のパネルの厚さを４．４７mmとすると、パネル端部の厚みは３．５mmである。 FIG. 2 is a cross-sectional view of the end portion of the solar cell panel constituting the solar cell module of the present invention. In FIG. 2, a solar cell panel 10 includes a photoelectric conversion such as a crystalline solar cell or an amorphous solar cell between a light-receiving surface glass 11 which is a light-transmitting insulating substrate on the light-receiving surface side and a weather-resistant film 12 on the back surface side. The element 13 is formed by being sealed together with a transparent resin 14 such as PVB (polyvinyl butyral) or EVA. Sealing is performed using a laminator, but in the laminating process, EVA is heated and melted and fluidized, and the EVA at the end moves away so that the shape of the back surface becomes thinner as it goes to the end. Formed. Therefore, the end of the back surface of the solar cell panel 10 has an inclined shape with the thickness of the transparent resin 14 becoming thinner as it approaches the end surface. For example, if the thickness of the light receiving surface glass 11 is 2.8 mm and the thickness of the panel at the center of the panel is 4.47 mm, the thickness of the panel end is 3.5 mm.
太陽電池パネル１０の端部には、ブチルゴムなどの弾性体を使用したテープなどで構成された弾性部材１５が端部を覆うように貼り付けられている。ブチルゴムは柔軟に変形し、粘着性もあるので、弾性部材１５の材料として好適である。 An elastic member 15 made of a tape using an elastic body such as butyl rubber is attached to the end of the solar cell panel 10 so as to cover the end. Butyl rubber is suitable as a material for the elastic member 15 because it deforms flexibly and has adhesiveness.
弾性部材１５は、受光面部１５ａ、端面部１５ｂ、裏面部１５ｃからなり、それぞれ太陽電池パネル端部の受光面、端面、および裏面を覆っている。例えば、弾性部材１５として、幅が１７mmのテープを使用する場合、受光面ガラス１１の端から６．７５mm内側のところから、端面、裏面にわたって接着されている。また、圧縮しない状態のテープの厚みは０．８〜１．２mm程度である。弾性部材１５として、テープ状の部材を使用することにより、均一な厚さの弾性部材を、正確な位置に配置することができる。 The elastic member 15 includes a light receiving surface portion 15a, an end surface portion 15b, and a back surface portion 15c, and covers the light receiving surface, the end surface, and the back surface of the end portion of the solar cell panel, respectively. For example, when a tape having a width of 17 mm is used as the elastic member 15, the elastic member 15 is bonded from the inside of the light receiving surface glass 11 to the end surface and the back surface from the inside of 6.75 mm. Moreover, the thickness of the tape which is not compressed is about 0.8 to 1.2 mm. By using a tape-shaped member as the elastic member 15, the elastic member having a uniform thickness can be disposed at an accurate position.
図３は、本発明の太陽電池モジュールに使用される太陽電池パネルと嵌合する枠体の断面図である。図３において、枠体２０は、基部２１と、基部２１上に設けられた箱状部２２と、箱状部２２上に設けられ、枠体２０に太陽電池パネル１０と嵌合するための嵌合部２３からなる。箱状部２２の上壁は嵌合部２３の下壁２６と共有している。 FIG. 3 is a cross-sectional view of a frame that fits into a solar cell panel used in the solar cell module of the present invention. In FIG. 3, a frame body 20 is provided on a base portion 21, a box-shaped portion 22 provided on the base portion 21, and the box-shaped portion 22, and is fitted to the frame body 20 for fitting with the solar cell panel 10. It consists of a joint 23. The upper wall of the box-shaped part 22 is shared with the lower wall 26 of the fitting part 23.
嵌合部２３の上壁２４は、上辺部２４ａとエッジ部２４ｂからなる。上辺部２４ａは、嵌合部２３の奥から所定長さの部分であって、基部２１に対して平行に形成されている。エッジ部２４ｂは、上辺部２４ａから延設された部分であって、先端にむかうにつれ、基部２１に近づくように曲がっている。エッジ部２４ｂの先端は、先細に形成されており、太陽電池パネル１０に当接したとき、太陽電池パネル１０となす角度が鈍角になるようになっている。上辺部２４ａと、エッジ部２４ｂの先端は、例えば０．５mm程度の高さの差がある。この高さの差によって上辺部２４ａ直下に空間２５が形成される。 The upper wall 24 of the fitting part 23 includes an upper side part 24a and an edge part 24b. The upper side portion 24 a is a portion having a predetermined length from the back of the fitting portion 23 and is formed in parallel to the base portion 21. The edge portion 24b is a portion extending from the upper side portion 24a, and is bent so as to approach the base portion 21 toward the tip. The tip of the edge portion 24b is tapered, and the angle formed with the solar cell panel 10 is an obtuse angle when contacting the solar cell panel 10. The tip of the upper side 24a and the edge 24b has a height difference of about 0.5 mm, for example. Due to this height difference, a space 25 is formed immediately below the upper side portion 24a.
嵌合部２３の上辺部２４ａから延設されたエッジ部２４ｂは、エッジ部２４ｂの先端に向かうに従って、基部２１の方に曲がっているので、枠体２０と太陽電池パネル１０を嵌合させたとき、エッジ部２４ｂは受光面ガラス１１と当接し、エッジ部２４ｂの先端と上辺部２４ａの高さの差でできた空間２５に太陽電池パネル１０に貼り付けられた弾性部材１５の受光面部１５ａが収まることになる。 Since the edge part 24b extended from the upper side part 24a of the fitting part 23 is bent toward the base part 21 toward the tip of the edge part 24b, the frame 20 and the solar cell panel 10 are fitted. At this time, the edge portion 24b is in contact with the light receiving surface glass 11, and the light receiving surface portion 15a of the elastic member 15 attached to the solar cell panel 10 in the space 25 formed by the height difference between the tip of the edge portion 24b and the upper side portion 24a. Will fit.
嵌合部２３の下壁２６は、嵌合部入口２７から奥部２８に向かって傾斜している。嵌合部入口２７付近の第１の傾斜部２６ａは、エッジ部２４ｂの形状に対応する傾斜を有しており、太陽電池パネル１０が挿入されるのに必要な幅を確保することができる。また、嵌合部の奥部２８に近い部分の第２の傾斜部２６ｂは、太陽電池パネル１０の端部の形状に沿った形状に形成されている。すなわち、太陽電池パネル１０の端部裏面の形状に対応して傾斜してなり、嵌合部の奥部２８に近づくにしたがって狭くなっている。このように、嵌合部２３の下壁２６は第１の傾斜部２６ａと、第２の傾斜部２６ｂの２種類の傾斜面を有している。 The lower wall 26 of the fitting portion 23 is inclined from the fitting portion inlet 27 toward the back portion 28. The first inclined portion 26a in the vicinity of the fitting portion entrance 27 has an inclination corresponding to the shape of the edge portion 24b, and can secure a width necessary for the solar cell panel 10 to be inserted. In addition, the second inclined portion 26 b in a portion near the back portion 28 of the fitting portion is formed in a shape along the shape of the end portion of the solar cell panel 10. That is, it inclines corresponding to the shape of the end back surface of the solar cell panel 10 and becomes narrower as it approaches the back portion 28 of the fitting portion. Thus, the lower wall 26 of the fitting part 23 has two types of inclined surfaces, the first inclined part 26a and the second inclined part 26b.
図４は、太陽電池パネルと、枠体との嵌合の過程を説明する説明図である。 FIG. 4 is an explanatory view illustrating the process of fitting the solar cell panel and the frame.
図４（ａ）は、挿入前の太陽電池パネルと枠体との位置関係を示す図である。太陽電池パネル１０の端部は、枠体２０の嵌合部２３にほぼ水平に挿入される。 Fig.4 (a) is a figure which shows the positional relationship of the solar cell panel and frame before insertion. The end portion of the solar cell panel 10 is inserted almost horizontally into the fitting portion 23 of the frame body 20.
図４（ｂ）は、太陽電池パネルが枠体に挿入される様子を示す図である。太陽電池パネル１０の弾性部材１５は、上壁２４と下壁２６に圧縮されながら、嵌合部の奥部２８に向けて挿入される。嵌合部入口２７付近の第１の傾斜部２６ａは、エッジ部２４ｂの形状に対応して傾斜し、奥に向かって高くなっているのに対し、エッジ部２４ｂの先端は低くなっているので、太陽電池パネル１０は、弾性部材１５の裏面部１５ｃを、第１の傾斜部２６ａに押し付けるようにして挿入される。 FIG.4 (b) is a figure which shows a mode that a solar cell panel is inserted in a frame. The elastic member 15 of the solar cell panel 10 is inserted toward the back portion 28 of the fitting portion while being compressed by the upper wall 24 and the lower wall 26. The first inclined portion 26a in the vicinity of the fitting portion entrance 27 is inclined corresponding to the shape of the edge portion 24b and is higher toward the back, whereas the tip of the edge portion 24b is lower. The solar cell panel 10 is inserted so as to press the back surface portion 15c of the elastic member 15 against the first inclined portion 26a.
図４（ｃ）は、太陽電池パネルが枠体にさらに挿入される様子を示す図である。太陽電池パネル１０は、弾性部材１５の裏面部１５ｃを、第２の傾斜部２６ｂに押し付けるようにして挿入される。一方、弾性部材１５の受光面部１５ａは、嵌合部２３に挿入されるに従い、上壁２４の形状に沿って拡張する。その結果、太陽電池パネル１０が嵌合部の奥部２８付近まで挿入されたとき、弾性部材１５は、上辺部２４ａ直下の受光面部１５ａよりも、裏面部１５ｃの方が圧縮された状態になる。 FIG.4 (c) is a figure which shows a mode that a solar cell panel is further inserted in a frame. The solar cell panel 10 is inserted so as to press the back surface portion 15c of the elastic member 15 against the second inclined portion 26b. On the other hand, the light receiving surface portion 15 a of the elastic member 15 expands along the shape of the upper wall 24 as it is inserted into the fitting portion 23. As a result, when the solar cell panel 10 is inserted to the vicinity of the back portion 28 of the fitting portion, the elastic member 15 is in a state in which the back surface portion 15c is compressed more than the light receiving surface portion 15a directly below the upper side portion 24a. .
図５は、本発明の太陽電池モジュールの端部の断面図であり、図１におけるＡ−Ａ’断面を示すものである。太陽電池パネル１０を嵌合部２３の奥部２８まで挿入すると弾性部材１５の受光面部１５ａは、上壁２４と密着する。また、弾性部材１５の端面部１５ｂは、奥壁２９と密着する。また、弾性部材１５の裏面部１５ｃは、下壁２６と密着する。 FIG. 5 is a cross-sectional view of the end portion of the solar cell module of the present invention, showing the A-A ′ cross section in FIG. 1. When the solar cell panel 10 is inserted to the back portion 28 of the fitting portion 23, the light receiving surface portion 15 a of the elastic member 15 is in close contact with the upper wall 24. Further, the end surface portion 15 b of the elastic member 15 is in close contact with the back wall 29. Further, the back surface portion 15 c of the elastic member 15 is in close contact with the lower wall 26.
太陽電池パネル１０の裏面側端部と第２の傾斜部２６ｂの形状がほぼ同じなので、太陽電池パネル１０を奥部２８まで挿入したとき、弾性部材１５の裏面部１５ｃは、ほぼ一定の厚さになり、均等に弾性部材１５に圧力がかかるようになる。 Since the shape of the back surface side end portion of the solar cell panel 10 and the second inclined portion 26b is substantially the same, when the solar cell panel 10 is inserted to the back portion 28, the back surface portion 15c of the elastic member 15 has a substantially constant thickness. Thus, the pressure is applied to the elastic member 15 evenly.
太陽電池パネル１０を枠体２０と嵌合させる過程において、弾性部材１５の裏面部１５ｃは、下壁２６に押し付けられて圧縮されながら挿入される。一方、弾性部材１５の受光面部１５ａは、太陽電池パネル１０を奥まで挿入すると、上辺部２４ａ直下の空間２５に収まる。すなわち、受光面部１５ａは、嵌合部の奥部２８まで挿入したとき、空間２５に入り込んで拡張し、圧縮率が小さくなる。そのため、挿入しようとする力を加えたままの状態では、受光面部１５ａよりも、裏面部１５ｃの方が圧縮された状態になる。すなわち、裏面部１５ｃの方が、受光面部１５ａよりも圧縮率が高く反発力が強い。そのため、挿入しようとする力を加えるのを止めると、太陽電池パネル１０は、上壁２４の方向に移動し、太陽電池パネル１０の受光面ガラス１１は、裏面部１５ｃの反発力によって、エッジ部２４ｂに押し付けられて当接する。挿入完了後の弾性部材であるテープの厚さは０．４〜０．６ｍｍ程度である。 In the process of fitting the solar cell panel 10 with the frame body 20, the back surface portion 15 c of the elastic member 15 is pressed against the lower wall 26 and inserted while being compressed. On the other hand, the light receiving surface portion 15a of the elastic member 15 fits in the space 25 immediately below the upper side portion 24a when the solar cell panel 10 is inserted to the back. That is, when the light-receiving surface portion 15a is inserted up to the back portion 28 of the fitting portion, the light-receiving surface portion 15a enters the space 25 and expands, and the compression rate decreases. Therefore, in the state where the force to be inserted is applied, the back surface portion 15c is compressed more than the light receiving surface portion 15a. That is, the back surface portion 15c has a higher compression rate and a stronger repulsive force than the light receiving surface portion 15a. Therefore, when the application of the force to be inserted is stopped, the solar cell panel 10 moves in the direction of the upper wall 24, and the light receiving surface glass 11 of the solar cell panel 10 is edged by the repulsive force of the back surface portion 15c. 24b is pressed against and abuts. The thickness of the tape which is an elastic member after the insertion is completed is about 0.4 to 0.6 mm.
受光面ガラス１１と、エッジ部２４ｂが当接しているので、受光面において枠体２０の嵌合部２３と太陽電池パネル１０の間隙はない。したがって、当接している箇所から内側へは、砂や塵が侵入する恐れはなく、エッジ部２４ｂより内側に配置された弾性部材１５は、砂やほこりにさらされない。その結果、受光面ガラス１１上には、弾性部材１５に付着した砂や塵が移動してくることはない。さらに、エッジ部２４ｂと受光面ガラス１１の角度は鈍角になっているため砂や塵が堆積しにくくなるので、受光面への砂や塵の堆積による太陽電池モジュール１の発電性能の低下を防ぐことができる。 Since the light receiving surface glass 11 and the edge portion 24b are in contact with each other, there is no gap between the fitting portion 23 of the frame 20 and the solar cell panel 10 on the light receiving surface. Therefore, there is no fear that sand or dust may enter from the abutting portion to the inside, and the elastic member 15 disposed inside the edge portion 24b is not exposed to the sand or dust. As a result, sand and dust attached to the elastic member 15 do not move on the light receiving surface glass 11. Furthermore, since the angle between the edge portion 24b and the light receiving surface glass 11 is an obtuse angle, it is difficult for sand and dust to accumulate, so that the power generation performance of the solar cell module 1 is prevented from being deteriorated due to the accumulation of sand and dust on the light receiving surface. be able to.
また、受光面ガラス１１と、エッジ部２４ｂとが当接している箇所から内側には雨水が浸入しにくくなるので、太陽電池モジュール１の耐久性を向上させることができる。さらに、雨水によって、太陽電池モジュール１上に堆積した砂や塵が洗い流されやすくなる。 In addition, since rainwater is less likely to enter the inside from the place where the light receiving surface glass 11 and the edge portion 24b are in contact with each other, the durability of the solar cell module 1 can be improved. Furthermore, sand and dust deposited on the solar cell module 1 are easily washed away by rainwater.
雨水が蒸発すると雨水に含まれていた塵やほこりが、雨水がたまっていた個所に付着することがあるが、エッジ部２４ｂは先細に形成され、エッジ部２４ｂと受光面ガラス１１の角度は鈍角になっているため、受光面ガラス１１との当接している箇所に水滴などがたまりにくい。そのため水がスムーズに流れ、雨水がとどまりにくいので、塵やほこりがエッジ部２４ｂに堆積しにくくなる。 When rainwater evaporates, dust and dust contained in the rainwater may adhere to the location where the rainwater has accumulated, but the edge portion 24b is formed to be tapered, and the angle between the edge portion 24b and the light receiving surface glass 11 is an obtuse angle. Therefore, it is difficult for water droplets or the like to collect at a position where the light receiving surface glass 11 is in contact. Therefore, the water flows smoothly and the rainwater does not stay easily, so that dust and dust are less likely to accumulate on the edge portion 24b.
また、太陽電池パネル１０の端部の弾性部材１５は、太陽電池パネル端部を覆うように形成されているので、太陽電池パネル１０の端部を保護するとともに、端部への水などの侵入を確実に防ぐことができる。また、枠体２０の嵌合部２３に密着しているので、嵌合部２３と弾性部材１５の間への水の浸入を防止することができ、太陽電池モジュール１の耐久性を高めることができる。 Moreover, since the elastic member 15 at the end of the solar cell panel 10 is formed so as to cover the end of the solar cell panel, the end of the solar cell panel 10 is protected and water or the like enters the end. Can be surely prevented. Moreover, since it closely_contact | adheres to the fitting part 23 of the frame 20, the penetration | invasion of the water between the fitting part 23 and the elastic member 15 can be prevented, and durability of the solar cell module 1 can be improved. it can.
さらに、太陽電池パネル１０と枠体２０の嵌合部２３とを密着させるための部材として、両面に接着層のあるシート状の弾性部材１５用いることにより、太陽電池パネル１０を枠体２０に密着させて確実に枠体２０に固定することができる。また、弾性部材１５としてテープ状の部材を用いることにより、弾性部材１５の位置や厚さおよび弾性部材１５の量を確実にコントロールすることができる。そのため、弾性部材１５の受光面部１５ａが嵌合部２３の上壁２４の上辺部２４ａ直下の空間２５に確実に収めることができるとともに、太陽電池パネル１０を上壁２４方向に押し付けるように固定できるので、受光面ガラス１１をエッジ部２４ｂに確実に当接させることができる。
（実施の形態２）
図６は、本発明の太陽電池モジュールを構成する太陽電池パネル端部の別の実施の形態を示す説明図である。図６（ａ）において、封止キャップ１６は、太陽電池パネル１０の端部の形状に合うように形成されている。図６（ｂ）に示されるように、封止キャップ１６を太陽電池パネル１０の端部に挿入することで太陽電池パネル１０の端部を保護するとともに、弾性部材として実施例１におけるテープに対応する機能を有するものである。
Furthermore, the solar cell panel 10 is adhered to the frame body 20 by using a sheet-like elastic member 15 having an adhesive layer on both sides as a member for bringing the solar cell panel 10 and the fitting portion 23 of the frame body 20 into close contact with each other. And can be securely fixed to the frame 20. Further, by using a tape-like member as the elastic member 15, the position and thickness of the elastic member 15 and the amount of the elastic member 15 can be reliably controlled. Therefore, the light receiving surface portion 15a of the elastic member 15 can be securely stored in the space 25 immediately below the upper side portion 24a of the upper wall 24 of the fitting portion 23 and can be fixed so as to press the solar cell panel 10 toward the upper wall 24. Therefore, the light-receiving surface glass 11 can be reliably brought into contact with the edge portion 24b.
(Embodiment 2)
FIG. 6 is explanatory drawing which shows another embodiment of the solar cell panel edge part which comprises the solar cell module of this invention. In FIG. 6A, the sealing cap 16 is formed to match the shape of the end of the solar cell panel 10. 6B, the sealing cap 16 is inserted into the end portion of the solar cell panel 10 to protect the end portion of the solar cell panel 10 and corresponds to the tape in Example 1 as an elastic member. It has the function to do.
今回開示された実施の形態は、すべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は上記した説明ではなくて特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
１ 太陽電池モジュール、１０ 太陽電池パネル、１１ 受光面ガラス、１２ 耐候性フィルム、１３ 光電変換素子、１４ 透明樹脂、１５ 弾性部材、１５ａ 受光面部、１５ｂ 端面部、１５ｃ 裏面部、２０ 枠体、２１ 基部、２２ 箱状部、２３ 嵌合部、２４ 上壁、２４ａ 上辺部、２４ｂ エッジ部 ２５ 空間、２６ 下壁、２６ａ 第１の傾斜部、２６ｂ 第２の傾斜部、２７ 嵌合部入口、２８ 奥部、２９ 奥壁
DESCRIPTION OF SYMBOLS 1 Solar cell module, 10 Solar cell panel, 11 Light-receiving surface glass, 12 Weather resistance film, 13 Photoelectric conversion element, 14 Transparent resin, 15 Elastic member, 15a Light-receiving surface part, 15b End surface part, 15c Back surface part, 20 Frame, 21 Base part, 22 Box-shaped part, 23 Fitting part, 24 Upper wall, 24a Upper side part, 24b Edge part 25 Space, 26 Lower wall, 26a First inclined part, 26b Second inclined part, 27 Fitting part inlet, 28 back, 29 back wall
Claims (3)
前記枠体は、前記太陽電池パネルの端部と嵌合するための嵌合部を有し、該嵌合部は上壁と下壁とを含み、
前記上壁は、前記太陽電池パネルの受光面に沿う上辺部と、該上辺部から延設され先端に向かうにつれ前記受光面に近づき前記上辺部より下方で前記受光面に当接するエッジ部と、を有し、
前記下壁は、前記嵌合部の奥部から入口に向かって下り傾斜する第１の傾斜部と、該第１の傾斜部よりも前記嵌合部の入口の側にあって前記第１の傾斜部の最下点以下の高さから前記嵌合部の入口に向かって下り傾斜する第２の傾斜部と、を有し、
前記第１の傾斜部は少なくともその一部が前記上辺部の下方にあって前記太陽電池パネルの裏面端部の形状に応じて傾斜しており、前記第２の傾斜部は少なくともその一部が前記エッジ部の下方にあって前記エッジ部の形状に応じて傾斜しており、
両面に接着層を有するテープ状の弾性部材が前記太陽電池パネルの端部の受光面側と端面と裏面側とを覆っており、
前記太陽電池パネルの端部が前記弾性部材に覆われた状態で前記嵌合部に嵌合していないときの厚さよりも前記嵌合部の入口での前記エッジ部と前記下壁との間の間隔が大きくされ、前記嵌合部の奥部での前記上辺部と前記下壁との間の間隔が前記入口での間隔よりも小さく且つ前記太陽電池パネルの端部のみの厚さよりも大きくされていることを特徴とする太陽電池モジュール A solar cell module having a solar cell panel and a frame body fitted to an end of the solar cell panel,
The frame has a fitting portion for fitting with an end portion of the solar cell panel, and the fitting portion includes an upper wall and a lower wall,
The upper wall includes an upper side portion along the light receiving surface of the solar cell panel, and an edge portion that extends from the upper side portion and approaches the light receiving surface toward the tip and contacts the light receiving surface below the upper side portion, Have
The lower wall is a first inclined portion that is inclined downward from the back of the fitting portion toward the inlet, and is closer to the inlet of the fitting portion than the first inclined portion, and the first wall A second inclined portion that is inclined downward from the height below the lowest point of the inclined portion toward the entrance of the fitting portion,
At least a part of the first inclined part is below the upper side part and is inclined according to the shape of the back end of the solar cell panel, and at least a part of the second inclined part is inclined. Below the edge part and inclined according to the shape of the edge part ,
A tape-like elastic member having an adhesive layer on both sides covers the light receiving surface side, the end surface and the back surface side of the end of the solar cell panel,
Between the edge part and the lower wall at the entrance of the fitting part rather than the thickness when the end part of the solar cell panel is covered with the elastic member and not fitted to the fitting part The distance between the upper side part and the lower wall at the back part of the fitting part is smaller than the distance at the entrance and larger than the thickness of only the end part of the solar cell panel. Solar cell module characterized by being
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| JP2013090074A JP6215562B2 (en) | 2013-04-23 | 2013-04-23 | Solar cell module |
| PCT/JP2014/057658 WO2014174948A1 (en) | 2013-04-23 | 2014-03-20 | Solar cell module |
| CN201490000592.0U CN205160453U (en) | 2013-04-23 | 2014-03-20 | Solar cell module |
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| DE202015002312U1 (en) | 2015-03-26 | 2015-04-08 | Solarworld Ag | Ramenprofilleiste for solar cell laminates, framed solar module and mounting system for solar modules |
| WO2018061704A1 (en) * | 2016-09-30 | 2018-04-05 | パナソニックＩｐマネジメント株式会社 | Photovoltaic module, frames |
| KR102159900B1 (en) * | 2020-02-17 | 2020-09-24 | 이선찬 | the supporting frame of the sunlight panel |
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| JP3806534B2 (en) * | 1999-02-24 | 2006-08-09 | 三洋電機株式会社 | Solar cell module |
| JP4895745B2 (en) * | 2006-09-28 | 2012-03-14 | 昭和シェル石油株式会社 | CIS thin film solar cell module |
| JP4285764B2 (en) * | 2007-11-09 | 2009-06-24 | 昭和シェル石油株式会社 | Solar cell module |
| JP5644603B2 (en) * | 2011-03-17 | 2014-12-24 | 株式会社ノーリツ | Solar cell module |
| DE102011076971A1 (en) * | 2011-06-06 | 2012-12-06 | Kunststoff-Technik Scherer & Trier Gmbh & Co. Kg | Frame structure for plate-shaped photovoltaic module used in arrangement for production of solar energy, has aluminum alloy or steel supporting portions that are provided in base, and cross-section areas that are extended from base |
| JP5528398B2 (en) * | 2011-06-21 | 2014-06-25 | 三菱電機株式会社 | Solar cell module |
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