JP5137187B2 - Solar panel trimming device - Google Patents

Solar panel trimming device Download PDF

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JP5137187B2
JP5137187B2 JP2008023184A JP2008023184A JP5137187B2 JP 5137187 B2 JP5137187 B2 JP 5137187B2 JP 2008023184 A JP2008023184 A JP 2008023184A JP 2008023184 A JP2008023184 A JP 2008023184A JP 5137187 B2 JP5137187 B2 JP 5137187B2
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electrode film
film
separation groove
base plate
insulating
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JP2009187982A (en
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明 白井
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株式会社シライテック
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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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Description

この発明は、太陽電池パネルの辺縁を処理する縁切り装置に関する。   The present invention relates to an edge cutting device for processing the edge of a solar cell panel.

太陽電池パネルは、ガラスなどの絶縁基板上に電極膜を形成して、この電極膜に光電変換領域毎に電気的に絶縁するための並列する分離溝を加工する。
次に電極膜上にモリブデンなどの光吸収膜が製膜される。
この光吸収膜にも並列する絶縁分離溝を加工する。
さらに、光吸収膜上に硫化亜鉛や硫化インジウムなどの透明電極膜が製膜され、製膜した透明電極膜にも並列する絶縁分離溝を設ける（例えば、特許文献１，２，３，４参照）。 In the solar cell panel, an electrode film is formed on an insulating substrate such as glass, and parallel separation grooves for electrically insulating each photoelectric conversion region are processed in the electrode film.
Next, a light absorption film such as molybdenum is formed on the electrode film.
An insulating separation groove is also formed in parallel with the light absorption film.
Further, a transparent electrode film such as zinc sulfide or indium sulfide is formed on the light absorption film, and an insulating separation groove is provided in parallel with the formed transparent electrode film (see, for example, Patent Documents 1, 2, 3, and 4). ).

なお、周知のように上記各加工ずみ絶縁基板の両側縁に光吸収膜及び透明電極膜をハツリ加工により剥離して電極膜を露出させる。
特開２０００−１２４４８８号公報 特開２００１−３２００７１号公報 特許第３４３９１７９号公報 特開平８−２４２０１１号公報 As is well known, the light absorption film and the transparent electrode film are peeled off on both side edges of each of the processed insulating substrates to expose the electrode film.
JP 2000-124488 A JP 2001-320071 A Japanese Patent No. 3439179 Japanese Patent Laid-Open No. 8-242411

ところで、各特許文献１，２，３，４に示す太陽電池パネルによると、レーザーの照射により各絶縁分離溝を加工した際、絶縁分離溝端において熱的ダメージにより加工のデブリや各膜の隣接縁及びスクライブラインの端縁の熱溶着にともない導通するので、抵抗値に変化があって不良品の発生原因になる問題があった。   By the way, according to the solar cell panels shown in Patent Documents 1, 2, 3, and 4, when each insulating separation groove is processed by laser irradiation, the debris of processing and the adjacent edge of each film due to thermal damage at the end of the insulating separation groove In addition, since conduction is caused by the thermal welding of the edge of the scribe line, there is a problem that the resistance value is changed and causes defective products.

また、ニードルによる絶縁分離溝のスクライブの際、絶縁分離溝のスクライブ端において、ニードルが溝端迄達していない場合や、スクライブ残滓が存在している場合などの影響により短絡して問題が発生する。   Further, when the insulating separation groove is scribed by the needle, a problem occurs due to a short circuit due to an influence such as when the needle does not reach the groove end at the scribe end of the insulating separation groove or when a scribe residue is present.

そこで、この発明は、太陽電池パネルの分離溝端側辺縁の電極膜、光吸収層及び透明電極層の縁切りをして上述の問題を解決することにある。   Therefore, the present invention is to solve the above-mentioned problems by cutting off the electrode film, the light absorption layer, and the transparent electrode layer on the side edge of the separation groove end of the solar cell panel.

上記の課題を解決するために、この発明は、ガラスなどの絶縁基板上に製膜してある電極膜に光電変換領域毎に電気的に絶縁するための並列する分離溝を加工したのち、上記電極膜上に製膜してある光吸収膜に上記分離溝に平行する多数条の絶縁分離溝を加工し、次いで光吸収膜上製膜してある透明電極膜に上記分離溝に平行する絶縁分離溝を加工したのち、上記電極膜の上記分離溝に平行する両側縁が露出するように上層の上記光吸収膜及び透明電極膜を剥離除去した太陽電池パネル素板において、この素板を荷受けするテーブルと、このテーブル上の上記素板の分離溝端側辺縁の上下いずれか片方に配置して上記電極膜にレーザーを照射して絶縁分離溝を形成するレーザーヘッド及び上記光吸収膜・透明電極膜の上記レーザーヘッドによる形成絶縁分離溝に沿う線上に絶縁分離溝をスクライブにより形成するように昇降手段を介し設けたニードルとからなり、上記テーブル或いは上下のレーザーヘッド、ニードルのいずれか片方を走行手段により分離溝形成方向に走行させるようにした構成を採用する。   In order to solve the above-described problems, the present invention processes the separation grooves arranged in parallel for electrically insulating each photoelectric conversion region in an electrode film formed on an insulating substrate such as glass, and then A plurality of insulating separation grooves parallel to the separation grooves are processed on the light absorption film formed on the electrode film, and then the insulation separation parallel to the separation grooves is formed on the transparent electrode film formed on the light absorption film. After processing the groove, in the solar cell panel base plate from which the light absorption film and the transparent electrode film of the upper layer are peeled and removed so that both side edges parallel to the separation groove of the electrode film are exposed, the base plate is received. A laser head that is arranged on either the upper or lower side of the separation groove end side edge of the base plate on the table and irradiates the electrode film with a laser to form an insulating separation groove, and the light absorbing film / transparent electrode With the above laser head of the film It comprises a needle provided through an elevating means so as to form an insulating separation groove by scribing on a line along the formed insulating separation groove, and either the table or the upper and lower laser heads, the needle is driven by the traveling means in the direction of forming the separation groove A configuration that allows the vehicle to run is adopted.

すると、太陽電池パネルの電極膜の分離溝両端側を照射するレーザーにより剥離除去され、又光吸収層及び透明電極層の分離溝の両端側をニードルによりスクライブして、導通（短絡）による不都合をなくすることができる。   Then, the both sides of the separation groove of the electrode film of the solar cell panel are peeled and removed by the laser, and both ends of the separation groove of the light absorption layer and the transparent electrode layer are scribed with a needle, thereby causing inconvenience due to conduction (short circuit). Can be eliminated.

以上のように、この発明の太陽電池パネルの縁切り装置によれば、テーブル上に太陽電池パネル素板を荷受けして、テーブル或いは対向するレーザーヘッド、昇降手段により降下させたニードルの片方を走行手段によって走行させることで、太陽電池パネル素板の絶縁基板上の製膜電極膜をレーザーヘッドから照射するレーザーにより電極膜を分離しながら絶縁分離溝を加工し、又電極膜上の積層透明膜及び光吸収膜に電極膜の加工絶縁分離溝の線上にニードルでスクライブしながら絶縁分離溝を加工することができる。   As described above, according to the edge cutting device of the solar cell panel of the present invention, the solar cell panel base plate is received on the table, and one of the needles lowered by the table or the opposed laser head and the lifting / lowering means is traveled. The insulating separation groove is processed while separating the electrode film with a laser that irradiates the film-forming electrode film on the insulating substrate of the solar cell panel base plate from the laser head, and the laminated transparent film on the electrode film and The insulating separation groove can be processed while scribing with a needle on the line of the processed insulating separation groove of the electrode film in the light absorption film.

このため、電極膜、光吸収膜及び透明電極膜の膜毎に加工してある絶縁分離溝端の熱的ダメージや熱溶着などにより導通して、抵抗値に変化があるなどの不都合を太陽電池パネル素板の縁切りによりなくすることができる。   For this reason, the solar cell panel has a disadvantage in that the resistance value changes due to conduction due to thermal damage or thermal welding at the end of the insulating separation groove processed for each electrode film, light absorption film and transparent electrode film. This can be eliminated by cutting the base plate.

この発明の実施の形態を添付図面に基づいて説明する。
この発明の実施形態の縁切り加工を施す太陽電池パネルの素板Ａは、図４に示すように、まず、ガラスなどの絶縁基板１上に製膜した電極膜２には、一方の対向する二辺縁に沿って多数条の並列する絶縁分離溝３が（この絶縁分離溝３は、レーザーヘッドから分離溝幅に通した出力の照射レーザーを結像させて電極膜２を分離させながら加工する）設けてあり、次いで絶縁分離溝３の加工ずみ電極膜２上にモリブデンなどの光吸収膜４を製膜したのち、この製膜光吸収膜４には、各絶縁分離溝３の線上にニードルによりスクライブしながら並列絶縁分離溝５が加工され、その後に絶縁分離溝５の加工ずみ光吸収膜４上に硫化亜鉛や硫化インジウムなどの透明電極膜６を製膜したのち、この製膜透明電極膜６には、各絶縁分離溝５の線上にニードルによりスクライブしながら並列絶縁分離溝７が加工され、然るのち、両サイドの絶縁分離溝７の外側の透明電極膜６及び光吸収膜４の絶縁基板１の側面から内方所定の幅を刃物によりハツリ加工して電極膜２を露出させたものである。 Embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in FIG. 4, the base plate A of the solar cell panel to be subjected to edge cutting according to the embodiment of the present invention has two electrode films 2 formed on an insulating substrate 1 such as glass. A plurality of parallel insulation separation grooves 3 are formed along the edge (this insulation separation groove 3 is processed while the electrode film 2 is separated by forming an image of an output irradiation laser passing through the separation groove width from the laser head. Then, after forming a light absorption film 4 such as molybdenum on the processed electrode film 2 of the insulating separation groove 3, a needle is formed on the line of each insulation separation groove 3 in the formed light absorption film 4. The parallel insulating separation grooves 5 are processed while scribing by the above method, and after that, a transparent electrode film 6 such as zinc sulfide or indium sulfide is formed on the processed light absorption film 4 of the insulating separation grooves 5, and then this formed transparent electrode The film 6 has a knee on the line of each insulating separation groove 5. The parallel insulating separation grooves 7 are processed while being scribed by the screw, and thereafter, a predetermined inner width is formed from the side of the insulating substrate 1 of the transparent electrode film 6 and the light absorbing film 4 outside the insulating separation grooves 7 on both sides. The electrode film 2 is exposed by cutting with a blade.

次に、上記素板Ａの縁切り加工を図１から図３に基づいて説明する。
まずテーブル１１上に上記の素板Ａを載置して荷受けする。
荷受けした素板Ａをテーブル１１上で保持する。 Next, the edge cutting process of the base plate A will be described with reference to FIGS.
First, the base plate A is placed on the table 11 and received.
The received base plate A is held on the table 11.

上記の保持方法としては、中空のテーブル１１の頂壁に無数の小孔１２群を設けて、テーブル１１内を吸引して保持するようになっている。   As the above holding method, an infinite number of small holes 12 are provided on the top wall of the hollow table 11, and the inside of the table 11 is sucked and held.

このとき、素板Ａの縁切り両端部がテーブル１１の辺縁から外方に食み出すように突出させて荷受けする。   At this time, both edge portions of the base plate A protrude so as to protrude outward from the edge of the table 11 to receive the load.

また、テーブル１１から食み出した辺の下側に電極膜２に絶縁分離溝Ｘの加工に適した出力のレーザーを上方に照射するレーザーヘッド１３が、このレーザーヘッド１３に対向させて絶縁分離溝Ｘに合致した直上に光吸収膜４にスクライブにより絶縁分離溝Ｙ及び透明電極膜６にスクライブにより絶縁分離溝Ｚを加工するための昇降手段Ｈにより昇降するニードル１４が設けてあり、テーブル１１或いはレーザーヘッド１３とニードル１４とのいずれか片方を走行手段Ｓにより進退走行させるようになっている。   Further, a laser head 13 that irradiates the electrode film 2 with a laser having an output suitable for processing the insulating separation groove X on the lower side of the side protruding from the table 11 is opposed to the laser head 13 for insulation separation. A needle 14 that moves up and down by lifting means H for processing the insulating separation groove Y by scribing the light absorbing film 4 and the insulating electrode groove Z by scribing the transparent electrode film 6 is provided immediately above the groove X, and the table 11 Alternatively, either one of the laser head 13 and the needle 14 is advanced or retracted by the traveling means S.

上記の走行手段Ｓは、図示の場合、二条の平行するレール１５にテーブル１１の搭載走行台車１６の下面両側のスライダ１７をスライド自在に係合すると共に、モーター１８の運転により可逆回転する雄ネジ１９の両端を軸承して、この雄ネジ１９に走行台車１６に支持させた雌ネジ２０をねじ込んでテーブル１１を進退走行するようにしたが、限定されず、テーブル１１の定置式に対しレーザーヘッド１３とニードル１４側を進退走行させるようにしてもよい。   In the illustrated case, the traveling means S includes a male screw that reversibly rotates by operating the motor 18 while slidably engaging sliders 17 on both sides of the lower surface of the traveling carriage 16 on which the table 11 is mounted on two parallel rails 15. Although both ends of the bearing 19 are supported and the female screw 20 supported by the traveling carriage 16 is screwed into the male screw 19 so that the table 11 moves forward and backward, the invention is not limited to this. 13 and the needle 14 side may be moved forward and backward.

そして、図示の場合レーザーヘッド１３とニードル１４とをテーブル１１の走行路の両側に配置して、素板Ａの両端縁を同時に縁切り加工するようにしたが、限定されず、レーザーヘッド１３とニードル１４とをテーブル１１の走行路の片側のみに設け、走行台車１６に旋回手段Ｅを介しテーブル１１を搭載し、テーブル１１の１８０度回転により素板Ａの片端側、次いでもう片端側を縁切り加工するようにしてもよい。   In the illustrated case, the laser head 13 and the needle 14 are arranged on both sides of the traveling path of the table 11 so that both end edges of the base plate A are cut simultaneously. However, the laser head 13 and the needle are not limited. 14 is provided only on one side of the traveling path of the table 11, the table 11 is mounted on the traveling carriage 16 via the turning means E, and one end side of the base plate A and then the other end side thereof are edge-cut by rotating the table 11 180 degrees. You may make it do.

また、図１、３に示すように、テーブル１１の走行路の両側にレール３１に台車３２の下面両側のスライダ３３をスライド自在に係合すると共に、モーター３４の運転により可逆駆動する雄ネジ３５に台車３２に支持させた雌ネジ３６をねじ込み、台車３２上にレーザーヘッド１３を据え付け、台車３２上の柱３７にニードル１４を有する昇降手段Ｈを据え付けることで、左右のレーザーヘッド１３とニードル１４との位置を調整することができる。   Further, as shown in FIGS. 1 and 3, a male screw 35 that is slidably engaged with a rail 31 on both sides of a traveling path of the table 11 and slidably engages a slider 33 on the lower surface of the carriage 32 and reversibly driven by the operation of the motor 34. The female screw 36 supported by the carriage 32 is screwed in, the laser head 13 is installed on the carriage 32, and the lifting means H having the needle 14 is installed on the pillar 37 on the carriage 32, so that the left and right laser heads 13 and the needle 14 are installed. And the position can be adjusted.

上記の昇降手段Ｈは、図示の場合、台車３２上の柱３７に設けた縦方向のレール５１と、このレール５１にスライド自在に係合したスライダ５２を有する昇降体５３と、この昇降体５３の上端からねじ込んだボールネジ５４と、柱３７側に支持させてボールネジ５４を可逆駆動するモーター５５とで構成され、昇降体５３には、支持部材５６を介し下端のホルダ２４にニードル１４を有する軸材５７が支持させてある。   In the illustrated case, the lifting means H includes a vertical rail 51 provided on the pillar 37 on the carriage 32, a lift 53 having a slider 52 slidably engaged with the rail 51, and the lift 53 A ball screw 54 screwed from the upper end of the shaft and a motor 55 that is supported on the pillar 37 side and reversibly drives the ball screw 54. The lift 53 has a shaft having the needle 14 in the holder 24 at the lower end via a support member 56. A material 57 is supported.

上記のように構成すると、数値制御によりモーター５５を運転してボールネジ５４をドライブすることにより昇降体５３と共に軸材５７、ホルダ２４及びニードル１４が降下して、ニードル１４によるスクライブ深さが決定するようにしてあるが、上述の構成に限定されず、上記の目的を達成する昇降手段Ｈを採用してもよい。   If comprised as mentioned above, the shaft 55, the holder 24, and the needle 14 will fall with the raising / lowering body 53 by operating the motor 55 by numerical control, and driving the ball screw 54, and the scribe depth by the needle 14 will be determined. However, the present invention is not limited to the above-described configuration, and elevating means H that achieves the above object may be employed.

そして、軸材５７の上端にシリンダ５８による押圧力を付与しておくと、スクライブの際のニードル１４の上下の微動を許容して、スクライブの追従をスムーズにすることができる。   And if the pressing force by the cylinder 58 is given to the upper end of the shaft material 57, the fine movement of the needle 14 at the time of a scribe is permitted, and the tracking of a scribe can be made smooth.

上記のように構成すると、素板Ａの端部にニードル１４により透明電極膜６及び光吸収膜４をスクライブして絶縁分離溝Ｚ、Ｙが加工され、レーザーヘッド１３からのレーザーの照射により絶縁分離溝Ｘが加工される。   When configured as described above, the transparent electrode film 6 and the light absorption film 4 are scribed at the end of the base plate A by the needle 14 to process the insulating separation grooves Z and Y, and insulation is performed by laser irradiation from the laser head 13. The separation groove X is processed.

その結果、電極膜２、光吸収膜４及び透明電極膜６に膜毎加工してある絶縁分離溝３、５、７端の熱的ダメージや熱溶着などにより導通して抵抗値に変化があるなどの不都合を縁切りによりなくすることができる。
なお、上述の実施例において、素板Ａの下方にレーザーヘッド１３を、素板Ａの上方にニードル１４を対向させて配置したが、限定されず、図６に示すように素板Ａの上側にニードル１４とレーザーヘッド１３とを並列状（走行手段Ｓの走行方向に並べて）に配置することもできる。 As a result, resistance is changed due to conduction due to thermal damage or thermal welding of the insulating separation grooves 3, 5, 7 ends processed in the electrode film 2, the light absorption film 4, and the transparent electrode film 6. Such inconveniences can be eliminated by edge cutting.
In the above-described embodiment, the laser head 13 is disposed below the base plate A and the needle 14 is disposed above the base plate A. However, the present invention is not limited thereto, and the upper side of the base plate A as shown in FIG. Further, the needle 14 and the laser head 13 can be arranged in parallel (arranged in the traveling direction of the traveling means S).

この発明の実施の形態を示す平面図。The top view which shows embodiment of this invention. 同上の一部切欠側面図。The partial notch side view same as the above. 同一部切欠正面図。The same part notch front view. 素板の斜視図。The perspective view of a base plate. 同上を縁切りした斜視図。The perspective view which cut off the same as the above. ニードルとレーザーヘッドとの他の配置を示す側面図。The side view which shows other arrangement | positioning of a needle and a laser head.

符号の説明Explanation of symbols

Ａ 素板
１ 絶縁基板
２ 電極膜
３ 分離溝
４ 光吸収膜
５ 分離溝
６ 透明電極膜
７ 分離溝
１１ テーブル
１２ 小孔
１３ レーザーヘッド
１４ ニードル
Ｓ 走行手段
１５ レール
１６ 走行台車
１７ スライダ
１８ モーター
１９ 雄ネジ
２０ 雌ネジ
Ｅ 旋回手段
Ｈ 昇降手段
２４ ホルダ
３１ レール
３２ 台車
３３ スライダ
３４ モーター
３５ 雄ネジ
３６ 雌ネジ
３７ 柱
５１ レール
５２ スライダ
５３ 昇降体
５４ ボールネジ
５５ モーター
５６ 支持部材
５７ 軸材
５８ シリンダ
Ｘ、Ｙ、Ｚ 分離溝 A Substrate 1 Insulating substrate 2 Electrode film 3 Separation groove 4 Light absorption film 5 Separation groove 6 Transparent electrode film 7 Separation groove 11 Table 12 Small hole 13 Laser head 14 Needle S Traveling means 15 Rail 16 Traveling carriage 17 Slider 18 Motor 19 Male Screw 20 Female screw E Turning means H Lifting means 24 Holder 31 Rail 32 Carriage 33 Slider 34 Motor 35 Male screw 36 Female screw 37 Pillar 51 Rail 52 Slider 53 Lifting body 54 Ball screw 55 Motor 56 Support member 57 Shaft material 58 Cylinder X, Y , Z Separation groove

Claims (1)

ガラスなどの絶縁基板上に製膜してある電極膜に光電変換領域毎に電気的に絶縁するための並列する分離溝を加工したのち、上記電極膜上に製膜してある光吸収膜に上記分離溝に平行する多数条の絶縁分離溝を加工し、次いで光吸収膜上製膜してある透明電極膜に上記分離溝に平行する絶縁分離溝を加工したのち、上記電極膜の上記分離溝に平行する両側縁が露出するように上層の上記光吸収膜及び透明電極膜を剥離除去した太陽電池パネル素板において、この素板を荷受けするテーブルと、このテーブル上の上記素板の分離溝端側辺縁の上下いずれか片方に配置して上記電極膜にレーザーを照射して絶縁分離溝を形成するレーザーヘッド及び上記光吸収膜・透明電極膜の上記レーザーヘッドによる形成絶縁分離溝に沿う線上に絶縁分離溝をスクライブにより形成するように昇降手段を介し設けたニードルとからなり、上記テーブル或いは上下のレーザーヘッド、ニードルのいずれか片方を走行手段により分離溝形成方向に走行させるようにしたことを特徴とする太陽電池パネルの縁切り装置。   After processing parallel separation grooves to electrically insulate each photoelectric conversion region in the electrode film formed on an insulating substrate such as glass, the light absorption film formed on the electrode film is formed. After processing a plurality of insulation separation grooves parallel to the separation grooves, and then processing the insulation separation grooves parallel to the separation grooves on the transparent electrode film formed on the light absorption film, the separation grooves of the electrode film In the solar cell panel base plate from which the light absorbing film and the transparent electrode film in the upper layer are peeled and removed so that both side edges parallel to the surface are exposed, a table for receiving the base plate, and a separation groove end of the base plate on the table A laser head that is arranged on either the upper or lower side edge to irradiate the electrode film with a laser to form an insulating separation groove, and a line along the insulating separation groove formed by the laser head of the light absorbing film / transparent electrode film Insulation separation groove on A sun comprising a needle provided through an elevating means so as to be formed by a scribe, wherein either one of the table or the upper and lower laser heads or the needle is caused to travel in the separation groove forming direction by the traveling means. Battery panel trimming device.
JP2008023184A 2008-02-01 2008-02-01 Solar panel trimming device Expired - Fee Related JP5137187B2 (en)

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