JP2014060264A - Solar cell module - Google Patents

Solar cell module Download PDF

Info

Publication number
JP2014060264A
JP2014060264A JP2012204393A JP2012204393A JP2014060264A JP 2014060264 A JP2014060264 A JP 2014060264A JP 2012204393 A JP2012204393 A JP 2012204393A JP 2012204393 A JP2012204393 A JP 2012204393A JP 2014060264 A JP2014060264 A JP 2014060264A
Authority
JP
Japan
Prior art keywords
solar cell
main surface
wiring
cell module
main
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2012204393A
Other languages
Japanese (ja)
Other versions
JP6083639B2 (en
Inventor
Kengo Matsune
健悟 松根
Hiroyuki Kobayashi
寛之 小林
Yohei Hattori
洋平 服部
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Sanyo Electric Co Ltd
Original Assignee
Panasonic Corp
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corp, Sanyo Electric Co Ltd filed Critical Panasonic Corp
Priority to JP2012204393A priority Critical patent/JP6083639B2/en
Priority to PCT/JP2013/074571 priority patent/WO2014045974A1/en
Publication of JP2014060264A publication Critical patent/JP2014060264A/en
Application granted granted Critical
Publication of JP6083639B2 publication Critical patent/JP6083639B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
    • H01L31/0512—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module made of a particular material or composition of materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
    • H01L31/0508—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module the interconnection means having a particular shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • H01L31/0547—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
    • 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
    • Y02E10/52—PV systems with concentrators

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Photovoltaic Devices (AREA)
  • Hybrid Cells (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a solar cell module with improved reliability.SOLUTION: A solar cell module 1 includes solar cells 13 and a first wiring material 14. Each solar cell 13 includes first and second main surfaces 13a, 13b. The first wiring material 14 is joined to the first main surface 13a of each solar cell 13. Irregularities are provided on a pair of main surfaces 14a, 14b of the first wiring material 14 so that protruding parts 14a1 on the one main surface 14a are positioned so as to correspond to recessed parts 14b2 of the other main surface 14b.

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.

近年、環境負荷の小さなエネルギー源として、太陽電池モジュールに対する注目が高まってきている。例えば、特許文献１には、配線材により電気的に接続された複数の太陽電池を有する太陽電池モジュールが記載されている。特許文献１に記載の太陽電池モジュールでは、配線材の一方側部分が隣り合う太陽電池の一方の受光面に接着されており、配線材の他方側部分が隣り合う太陽電池の他方の裏面に接着されている。配線材の受光面側の主面には、凹凸が形成されている。これにより、配線材に入射した光の利用効率が高められている。一方、配線材の裏面側の主面は、平坦面に設けられている。   In recent years, attention has been paid to solar cell modules as energy sources with a small environmental load. For example, Patent Document 1 describes a solar cell module having a plurality of solar cells electrically connected by a wiring material. In the solar cell module described in Patent Document 1, one side portion of the wiring material is bonded to one light receiving surface of the adjacent solar cell, and the other side portion of the wiring material is bonded to the other back surface of the adjacent solar cell. Has been. Concavities and convexities are formed on the main surface of the wiring material on the light receiving surface side. Thereby, the utilization efficiency of the light which injected into the wiring material is improved. On the other hand, the main surface on the back surface side of the wiring member is provided on a flat surface.

特開２００６−１３４０６号公報JP 2006-13406 A

太陽電池モジュールの信頼性を改善したいという要望がある。   There is a desire to improve the reliability of solar cell modules.

本発明の主な目的は、改善された信頼性を有する太陽電池モジュールを提供することである。   The main object of the present invention is to provide a solar cell module with improved reliability.

本発明に係る太陽電池モジュールは、太陽電池と、第１の配線材とを備える。太陽電池は、第１及び第２の主面を有する。第１の配線材は、太陽電池の第１の主面に接着されている。第１の配線材の一対の主面のそれぞれには、一方の主面の凸部と他方の主面の凹部とが対応して位置するように凹凸が設けられている。   The solar cell module according to the present invention includes a solar cell and a first wiring material. The solar cell has first and second main surfaces. The first wiring material is bonded to the first main surface of the solar cell. Each of the pair of main surfaces of the first wiring member is provided with irregularities so that the convex portions of one main surface and the concave portions of the other main surface are positioned correspondingly.

本発明によれば、改善された信頼性を有する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, it is possible to provide a solar cell module having improved reliability.

図１は、第１の実施形態における太陽電池モジュールの略図的断面図である。FIG. 1 is a schematic cross-sectional view of the solar cell module according to the first embodiment. 図２は、第１の実施形態における太陽電池の略図的断面図である。FIG. 2 is a schematic cross-sectional view of the solar cell in the first embodiment. 図３は、第２の実施形態における太陽電池の略図的断面図である。FIG. 3 is a schematic cross-sectional view of the solar cell in the second embodiment. 図４は、第３の実施形態における太陽電池の略図的断面図である。FIG. 4 is a schematic cross-sectional view of a solar cell in the third embodiment.

以下、本発明を実施した好ましい形態の一例について説明する。但し、下記の実施形態は、単なる例示である。本発明は、下記の実施形態に何ら限定されない。   Hereinafter, an example of the preferable form which implemented this invention is demonstrated. However, the following embodiment is merely an example. The present invention is not limited to the following embodiments.

また、実施形態等において参照する各図面において、実質的に同一の機能を有する部材は同一の符号で参照することとする。また、実施形態等において参照する図面は、模式的に記載されたものであり、図面に描画された物体の寸法の比率などは、現実の物体の寸法の比率などとは異なる場合がある。図面相互間においても、物体の寸法比率等が異なる場合がある。具体的な物体の寸法比率等は、以下の説明を参酌して判断されるべきである。   Moreover, in each drawing referred in embodiment etc., the member which has a substantially the same function shall be referred with the same code | symbol. The drawings referred to in the embodiments and the like are schematically described, and the ratio of the dimensions of the objects drawn in the drawings may be different from the ratio of the dimensions of the actual objects. The dimensional ratio of the object may be different between the drawings. The specific dimensional ratio of the object should be determined in consideration of the following description.

図１に示されるように、太陽電池モジュール１は、複数の太陽電池１３を有する。太陽電池１３は、第１の主面１３ａと第２の主面１３ｂとを有する。第１の主面１３ａが受光面を構成しており、第２の主面１３ｂが裏面を構成している。なお、受光面とは、太陽電池の一対の主面のうち、主として受光する主面のことであり、他方の主面により裏面が構成されている。太陽電池１３は、第１の主面１３ａ側に第１の電極１３Ａ（図２を参照）を有し、第２の主面１３ｂ側に第２の電極１３Ｂを有している。   As shown in FIG. 1, the solar cell module 1 has a plurality of solar cells 13. Solar cell 13 has a first main surface 13a and a second main surface 13b. The 1st main surface 13a comprises the light-receiving surface, and the 2nd main surface 13b comprises the back surface. In addition, a light-receiving surface is a main surface which mainly receives light among a pair of main surfaces of a solar cell, and the back surface is comprised by the other main surface. The solar cell 13 has a first electrode 13A (see FIG. 2) on the first main surface 13a side, and a second electrode 13B on the second main surface 13b side.

複数の太陽電池１３は、配線材１４により電気的に接続されている。具体的には、隣り合う太陽電池１３のうちの一方の太陽電池１３の第１の主面１３ａ側に位置する第１の電極１３Ａと、他方の太陽電池１３の第２の主面１３ｂ側に位置する第２の電極１３Ｂとが配線材１４によって電気的に接続されている。   The plurality of solar cells 13 are electrically connected by the wiring material 14. Specifically, of the adjacent solar cells 13, the first electrode 13 </ b> A located on the first main surface 13 a side of one solar cell 13 and the second main surface 13 b side of the other solar cell 13. The second electrode 13 </ b> B located is electrically connected by the wiring material 14.

図２に示されるように、配線材１４と太陽電池１３とは、樹脂接着剤の硬化物を含む樹脂接着層１５によって接着されている。樹脂接着層１５は、樹脂接着剤の硬化物のみにより構成されていてもよい。この場合は、配線材１４と、第１または第２の電極１３Ａ，１３Ｂとが接触した状態で配線材１４と太陽電池１３とが接着されていることが好ましい。また、樹脂接着層１５は、導電材が分散した樹脂接着剤の硬化物により構成されていてもよい。   As shown in FIG. 2, the wiring member 14 and the solar cell 13 are bonded by a resin adhesive layer 15 containing a cured product of a resin adhesive. The resin adhesive layer 15 may be composed only of a cured product of the resin adhesive. In this case, it is preferable that the wiring member 14 and the solar cell 13 are bonded in a state where the wiring member 14 is in contact with the first or second electrode 13A, 13B. Moreover, the resin adhesive layer 15 may be comprised with the hardened | cured material of the resin adhesive in which the electrically conductive material was disperse | distributed.

太陽電池１３の第１の主面１３ａの上方には、第１の保護部材１１が配されている。第１の保護部材１１は透光性を有することが好ましく、例えば、ガラス板により構成することができる。一方、太陽電池１３の第２の主面１３ｂの上方には、第２の保護部材１６が配されている。第２の保護部材１６は、例えば、樹脂シートにより構成することができる。すなわち、太陽電池１３は、第１の保護部材１１と第２の保護部材１６との間に配されている。第２の保護部材１６は、樹脂シートのみからなるものであってもよいし、金属層や無機酸化物層などのバリア層を含む樹脂シートにより構成されていてもよい。   A first protective member 11 is disposed above the first main surface 13a of the solar cell 13. The first protective member 11 preferably has translucency, and can be constituted by a glass plate, for example. On the other hand, a second protection member 16 is disposed above the second main surface 13 b of the solar cell 13. The 2nd protection member 16 can be constituted by a resin sheet, for example. That is, the solar cell 13 is disposed between the first protection member 11 and the second protection member 16. The 2nd protection member 16 may consist only of a resin sheet, and may be comprised by the resin sheet containing barrier layers, such as a metal layer and an inorganic oxide layer.

第１の保護部材１１と第２の保護部材１６との間には封止材１７が配されている。この封止材１７によって太陽電池１３及び配線材１４が封止されている。封止材１７は、例えば、エチレン・酢酸ビニル共重合体（ＥＶＡ）などの架橋性樹脂や、ポリオレフィンなどの非架橋性樹脂により構成することができる。第１の保護部材１１と太陽電池１３との間に設けられる封止材１７は、透光性を有することが好ましい。   A sealing material 17 is disposed between the first protection member 11 and the second protection member 16. The solar cell 13 and the wiring material 14 are sealed by the sealing material 17. The sealing material 17 can be composed of, for example, a crosslinkable resin such as ethylene / vinyl acetate copolymer (EVA) or a non-crosslinkable resin such as polyolefin. It is preferable that the sealing material 17 provided between the 1st protection member 11 and the solar cell 13 has translucency.

配線材１４の横断面は、配線材１４の幅方向に沿ってジグザグ状である。   The cross section of the wiring member 14 has a zigzag shape along the width direction of the wiring member 14.

配線材１４は、第１の主面１４ａと第２の主面１４ｂとを有する。第１の主面１４ａが受光面側（第１の保護部材１１側）を向いており、第２の主面１４ｂが裏面側（第２の保護部材１６側）を向いている。第１及び第２の主面１４ａ、１４ｂのそれぞれには、凹凸が設けられている。凹凸は、配線材１４の延びる方向であるｘ軸方向に沿って延びている。すなわち、第１の主面１４ａの凹凸は、ｘ軸方向に沿って延びる複数の凸部１４ａ１と、ｘ軸方向に沿って延びる複数の凹部１４ａ２とがｘ軸方向に直行するｙ軸方向に沿って交互に配列されてなる。第２の主面１４ｂの凹凸は、ｘ軸方向に沿って延びる複数の凸部１４ｂ１と、ｘ軸方向に沿って延びる複数の凹部１４ｂ２とがｘ軸方向に直行するｙ軸方向に沿って交互に配列されてなる。   The wiring member 14 has a first main surface 14a and a second main surface 14b. The 1st main surface 14a has faced the light-receiving surface side (1st protection member 11 side), and the 2nd main surface 14b has faced the back surface side (2nd protection member 16 side). Irregularities are provided on each of the first and second main surfaces 14a and 14b. The unevenness extends along the x-axis direction, which is the direction in which the wiring material 14 extends. That is, the unevenness of the first main surface 14a is along the y-axis direction in which a plurality of convex portions 14a1 extending along the x-axis direction and a plurality of concave portions 14a2 extending along the x-axis direction are orthogonal to the x-axis direction. Are arranged alternately. Concavities and convexities on the second main surface 14b are alternately arranged along the y-axis direction in which a plurality of convex portions 14b1 extending along the x-axis direction and a plurality of concave portions 14b2 extending along the x-axis direction are orthogonal to the x-axis direction. It is arranged in.

第１の主面１４ａの凹凸と、第２の主面１４ｂの凹凸とは、第１の主面１４ａの凸部１４ａ１と第２の主面１４ｂの凹部１４ｂ２とが対応して位置するように設けられている。図２に記載の実施形態では、ｙ軸方向において、第１の主面１４ａの凸部１４ａ１の位置は、第２の主面１４ｂの凹部１４ｂ２の位置と一致している。このため、第１の主面１４ａの凸部１４ａ１と第２の主面１４ｂの凹部１４ｂ２とは、太陽電池１３の厚み方向であるｚ軸方向に対向している。第１の主面１４ａの凹凸と、第２の主面１４ｂの凹凸とは、第１の主面１４ａの凹部１４ａ２と第２の主面１４ｂの凸部１４ｂ１とが対応して位置するように設けられている。図２に記載の実施形態では、ｙ軸方向において、第１の主面１４ａの凹部１４ａ２の位置は、第２の主面１４ｂの凸部１４ｂ１の位置と一致している。このため、第１の主面１４ａの凹部１４ａ２と第２の主面１４ｂの凸部１４ｂ１とは、ｚ軸方向に対向している。   The unevenness of the first main surface 14a and the unevenness of the second main surface 14b are such that the convex portion 14a1 of the first main surface 14a and the concave portion 14b2 of the second main surface 14b are positioned correspondingly. Is provided. In the embodiment illustrated in FIG. 2, the position of the convex portion 14a1 of the first main surface 14a matches the position of the concave portion 14b2 of the second main surface 14b in the y-axis direction. For this reason, the convex portion 14 a 1 of the first main surface 14 a and the concave portion 14 b 2 of the second main surface 14 b are opposed to the z-axis direction that is the thickness direction of the solar cell 13. The unevenness of the first main surface 14a and the unevenness of the second main surface 14b are such that the concave portion 14a2 of the first main surface 14a and the convex portion 14b1 of the second main surface 14b are positioned correspondingly. Is provided. In the embodiment shown in FIG. 2, in the y-axis direction, the position of the concave portion 14a2 of the first main surface 14a coincides with the position of the convex portion 14b1 of the second main surface 14b. For this reason, the recessed part 14a2 of the 1st main surface 14a and the convex part 14b1 of the 2nd main surface 14b are facing the z-axis direction.

配線材１４の、太陽電池１３の受光面側に位置する受光面側部分１４Ａと、裏面側に位置する裏面側部分１４Ｂとは、太陽電池１３を介してｚ軸方向に対向している。受光面側部分１４Ａの太陽電池１３側の主面である第２の主面１４ｂに設けられた凸部１４ｂ１と、裏面側部分１４Ｂの太陽電池１３側の主面である第１の主面１４ａに設けられた凸部１４ａ１とは、太陽電池１３を介してｚ軸方向に対向している。   The light receiving surface side portion 14 </ b> A located on the light receiving surface side of the solar cell 13 and the back surface side portion 14 </ b> B located on the back surface side of the wiring member 14 face each other in the z-axis direction via the solar cell 13. The convex part 14b1 provided in the 2nd main surface 14b which is the main surface by the side of the solar cell 13 of the light-receiving surface side part 14A, and the 1st main surface 14a which is the main surface by the side of the solar cell 13 of the back surface side part 14B. The projecting portion 14 a 1 provided on the surface faces the z-axis direction via the solar cell 13.

このような配線材１４は、両主面が平坦面である金属板をプレスすることにより作製することができる。   Such a wiring member 14 can be produced by pressing a metal plate whose both main surfaces are flat surfaces.

太陽電池モジュール１では、配線材１４の受光面側を向く第１の主面１４ａに凹凸が設けられている。このため、第１の主面１４ａに入射した光の利用効率を高めることができる。よって、改善された光電変換効率を得ることができる。具体的には、配線材１４で反射された光の少なくとも一部は、受光面側の第１の保護部材１１と封止材１７との界面または第１の保護部材１１と空気との界面において反射し、太陽電池１３の第１の主面１３ａに入射する。よって、配線材１４に入射した光の利用効率を高めることができる。   In the solar cell module 1, unevenness is provided on the first main surface 14 a facing the light receiving surface side of the wiring member 14. For this reason, the utilization efficiency of the light which injected into the 1st main surface 14a can be improved. Therefore, improved photoelectric conversion efficiency can be obtained. Specifically, at least a part of the light reflected by the wiring member 14 is at the interface between the first protective member 11 and the sealing material 17 on the light receiving surface side or the interface between the first protective member 11 and air. Reflected and incident on the first main surface 13 a of the solar cell 13. Therefore, the utilization efficiency of the light incident on the wiring member 14 can be increased.

ところで、改善された光電変換効率を得る観点からは、配線材の受光面側の主面にのみ凹凸を設け、裏面側の主面に凹凸を設ける必要はない。しかしながら、その場合は、配線材の剛性が高く、例えば使用時や製造時などにおいて配線材と太陽電池との間に応力が加わったときに太陽電池が割れたり、太陽電池にクラックが発生したりする場合がある。   By the way, from the viewpoint of obtaining an improved photoelectric conversion efficiency, it is not necessary to provide unevenness only on the main surface on the light receiving surface side of the wiring material and to provide unevenness on the main surface on the back surface side. However, in that case, the wiring material has high rigidity. For example, when a stress is applied between the wiring material and the solar cell during use or manufacturing, the solar cell may crack or the solar cell may crack. There is a case.

一方、太陽電池モジュール１では、配線材１４の第１及び第２の主面１４ａ、１４ｂのそれぞれには、第１の主面１４ａの凸部１４ａ１と第２の主面１４ｂの凹部１４ｂ２とが対応して位置するように凹凸が設けられている。このため、配線材１４は、配線材１４の厚み方向（ｚ軸方向）に弾性変形しやすい。また、配線材１４をプレス成形により作製する場合、一方面のみに凹凸が設けられた配線材をプレス成形により作製する場合よりもプレス圧を低くすることができる。従って、加工硬化を抑制できるため、配線材１４の剛性を低くしやすい。よって、太陽電池１３と配線材１４との間に大きな応力が付加しにくい。従って、使用時や製造時に太陽電池が割れたり、太陽電池にクラックが発生したりすることを抑制することができる。従って、改善された信頼性及び高い製造効率を実現することができる。   On the other hand, in the solar cell module 1, the first main surface 14a and the second main surface 14b of the wiring member 14 are respectively provided with a convex portion 14a1 of the first main surface 14a and a concave portion 14b2 of the second main surface 14b. Concavities and convexities are provided so as to be positioned correspondingly. For this reason, the wiring member 14 is easily elastically deformed in the thickness direction (z-axis direction) of the wiring member 14. Further, when the wiring material 14 is produced by press molding, the press pressure can be made lower than when the wiring material having unevenness only on one surface is produced by press molding. Therefore, since work hardening can be suppressed, it is easy to make the rigidity of the wiring material 14 low. Therefore, it is difficult to apply a large stress between the solar cell 13 and the wiring member 14. Therefore, it can suppress that a solar cell is cracked at the time of use or manufacture, and a crack generate | occur | produces in a solar cell. Therefore, improved reliability and high manufacturing efficiency can be realized.

特に配線材１４を樹脂接着層１５により太陽電池１３に接着する場合は、配線材１４と太陽電池１３とを樹脂接着剤を用いて圧着させる必要があるため、太陽電池１３と配線材１４との間に付加される応力を低減できる太陽電池モジュール１の構成が特に有効である。   In particular, when the wiring member 14 is bonded to the solar cell 13 by the resin adhesive layer 15, the wiring member 14 and the solar cell 13 need to be pressure-bonded using a resin adhesive. The configuration of the solar cell module 1 that can reduce the stress applied therebetween is particularly effective.

また、太陽電池モジュール１では、受光面側部分１４Ａの太陽電池１３側の主面である第２の主面１４ｂに設けられた凸部１４ｂ１と、裏面側部分１４Ｂの太陽電池１３側の主面である第１の主面１４ａに設けられた凸部１４ａ１とは、太陽電池１３を介してｚ軸方向に対向している。このため、受光面側部分１４Ａと裏面側部分１４Ｂとの間に圧縮応力が加わった際に太陽電池１３に割れやクラックが発生することがより効果的に抑制されている。   Moreover, in the solar cell module 1, the convex part 14b1 provided in the 2nd main surface 14b which is the main surface at the side of the solar cell 13 of the light-receiving surface side part 14A, and the main surface by the side of the solar cell 13 of the back surface side part 14B. The convex portion 14 a 1 provided on the first main surface 14 a is opposed to the z-axis direction via the solar cell 13. For this reason, when a compressive stress is applied between the light receiving surface side portion 14A and the back surface side portion 14B, the solar cell 13 is more effectively suppressed from being cracked or cracked.

もっとも、受光面側部分１４Ａの太陽電池１３側の主面である第２の主面１４ｂに設けられた凸部１４ｂ１と、裏面側部分１４Ｂの太陽電池１３側の主面である第１の主面１４ａに設けられた凸部１４ａ１とが太陽電池１３を介してｚ軸方向に対向している必要は必ずしもない。例えば、図３に示されるように、受光面側部分１４Ａの太陽電池１３側の主面である第２の主面１４ｂに設けられた凸部１４ｂ１と、裏面側部分１４Ｂの太陽電池１３側の主面である第１の主面１４ａに設けられた凹部１４ａ２とが太陽電池１３を介してｚ軸方向に対向していてもよい。   But the convex part 14b1 provided in the 2nd main surface 14b which is the main surface by the side of the solar cell 13 of the light-receiving surface side part 14A, and the 1st main surface which is the main surface by the side of the solar cell 13 of the back surface side part 14B. The convex portion 14a1 provided on the surface 14a is not necessarily opposed to the z-axis direction via the solar cell 13. For example, as shown in FIG. 3, the convex portion 14 b 1 provided on the second main surface 14 b which is the main surface on the solar cell 13 side of the light receiving surface side portion 14 A, and the solar cell 13 side of the back surface side portion 14 B. The concave portion 14 a 2 provided on the first main surface 14 a that is the main surface may face the z-axis direction via the solar cell 13.

本実施形態では、凸部１４ａ１，１４ｂ１が横断面三角形状であり、凹凸が互いに交差する方向に延びる２種の平面が交互に配されてなる例について説明した。但し、本発明は、この構成に限定されない。例えば、図４に示されるように、凹凸は、曲面により構成されていてもよい。凸部１４ａ１，１４ｂ１は、横断面ドーム型であってもよい。   In the present embodiment, an example is described in which the convex portions 14a1 and 14b1 have a triangular cross section, and two types of planes extending in a direction in which the concave and convex portions intersect with each other are alternately arranged. However, the present invention is not limited to this configuration. For example, as shown in FIG. 4, the unevenness may be configured by a curved surface. The convex portions 14a1 and 14b1 may have a cross-sectional dome shape.

１…太陽電池モジュール
１１…第１の保護部材
１３…太陽電池
１３Ａ…第１の電極
１３Ｂ…第２の電極
１３ａ…第１の主面
１３ｂ…第２の主面
１４…配線材
１４Ａ…受光面側部分
１４Ｂ…裏面側部分
１４ａ…第１の主面
１４ａ１…凸部
１４ａ２…凹部
１４ｂ…第２の主面
１４ｂ１…凸部
１４ｂ２…凹部
１５…樹脂接着層
１６…第２の保護部材
１７…封止材 DESCRIPTION OF SYMBOLS 1 ... Solar cell module 11 ... 1st protection member 13 ... Solar cell 13A ... 1st electrode 13B ... 2nd electrode 13a ... 1st main surface 13b ... 2nd main surface 14 ... Wiring material 14A ... Light-receiving surface Side part 14B ... Back side part 14a ... First main surface 14a1 ... Convex part 14a2 ... Concave part 14b ... Second main surface 14b1 ... Convex part 14b2 ... Concave part 15 ... Resin adhesive layer 16 ... Second protective member 17 ... Sealing Stop material

Claims (6)

第１及び第２の主面を有する太陽電池と、
前記太陽電池の前記第１の主面に接着された第１の配線材と、
を備え、
前記第１の配線材の一対の主面のそれぞれには、一方の主面の凸部と他方の主面の凹部とが対応して位置するように凹凸が設けられている、太陽電池モジュール。 A solar cell having first and second main surfaces;
A first wiring member bonded to the first main surface of the solar cell;
With
Each of the pair of main surfaces of the first wiring member is provided with an unevenness so that the protrusions on one main surface and the recesses on the other main surface are positioned correspondingly. 前記太陽電池の前記第２の主面に接着されており、前記太陽電池を介して前記第１の配線材と対向している第２の配線材をさらに備え、
前記第２の配線材の一対の主面のそれぞれには、一方の主面の凸部と他方の主面の凹部とが対応して位置するように凹凸が設けられており、
前記第１及び第２の配線材は、前記第１の配線材の前記太陽電池側の主面に設けられた凸部と、前記第２の配線材の前記太陽電池側の主面に設けられた凸部とが前記太陽電池を介して対向するように配されている、請求項１に記載の太陽電池モジュール。 A second wiring member that is bonded to the second main surface of the solar cell and is opposed to the first wiring member via the solar cell;
Each of the pair of main surfaces of the second wiring material is provided with irregularities so that the convex portions of one main surface and the concave portions of the other main surface are positioned correspondingly,
The first and second wiring members are provided on the main surface of the first wiring member on the solar cell side and on the solar cell side main surface of the second wiring member. The solar cell module according to claim 1, wherein the protruding portion is disposed so as to face the solar cell via the solar cell. 前記配線材と前記太陽電池とを接着している樹脂接着層をさらに備える、請求項１または２に記載の太陽電池モジュール。   The solar cell module of Claim 1 or 2 further provided with the resin contact bonding layer which has adhere | attached the said wiring material and the said solar cell. 前記太陽電池の前記第１の主面側に設けられた、透光性を有する第１の保護部材と、
前記第１の保護部材と前記太陽電池との間に設けられ、透光性を有する封止材と、
をさらに備え、
前記配線材で反射した光の少なくとも一部は、前記第１の保護部材と前記封止材との界面、または、前記第１の保護部材と空気との界面にて反射され、前記太陽電池の前記第１の主面に入射する、請求項１〜３のいずれか一項に記載の太陽電池モジュール。 A first protective member having translucency, provided on the first main surface side of the solar cell;
A sealing material that is provided between the first protective member and the solar cell and has translucency;
Further comprising
At least part of the light reflected by the wiring member is reflected at the interface between the first protective member and the sealing material, or the interface between the first protective member and air, and The solar cell module as described in any one of Claims 1-3 which injects into a said 1st main surface. 前記配線材は、両主面が平坦面である金属板をプレスしてなる、請求項１〜４のいずれか一項に記載の太陽電池モジュール。   The said wiring material is a solar cell module as described in any one of Claims 1-4 formed by pressing the metal plate whose both main surfaces are flat surfaces. 前記凹凸は、前記配線材の延びる方向に沿って延びている、請求項１〜５のいずれか一項に記載の太陽電池モジュール。   The solar cell module according to any one of claims 1 to 5, wherein the unevenness extends along a direction in which the wiring material extends.
JP2012204393A 2012-09-18 2012-09-18 Solar cell module Active JP6083639B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2012204393A JP6083639B2 (en) 2012-09-18 2012-09-18 Solar cell module
PCT/JP2013/074571 WO2014045974A1 (en) 2012-09-18 2013-09-11 Solar cell module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012204393A JP6083639B2 (en) 2012-09-18 2012-09-18 Solar cell module

Publications (2)

Publication Number Publication Date
JP2014060264A true JP2014060264A (en) 2014-04-03
JP6083639B2 JP6083639B2 (en) 2017-02-22

Family

ID=50341288

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012204393A Active JP6083639B2 (en) 2012-09-18 2012-09-18 Solar cell module

Country Status (2)

Country Link
JP (1) JP6083639B2 (en)
WO (1) WO2014045974A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016056546A1 (en) * 2014-10-06 2016-04-14 株式会社カネカ Solar cell, solar cell module, method for manufacturing solar cell, and method for manufacturing solar cell module

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101506990B1 (en) * 2014-03-31 2015-04-01 주식회사 산코코리아 Solar cell module connection member

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005302902A (en) * 2004-04-08 2005-10-27 Sharp Corp Solar cell and solar cell module
JP2006059991A (en) * 2004-08-19 2006-03-02 Shin Etsu Handotai Co Ltd Solar battery module and its manufacturing method
WO2009041506A1 (en) * 2007-09-26 2009-04-02 Hitachi Chemical Company, Ltd. Member for conductor connection, method for manufacturing the same, connection structure, and solar cell module
JP2012124375A (en) * 2010-12-09 2012-06-28 Sony Chemical & Information Device Corp Solar cell module and method for manufacturing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005302902A (en) * 2004-04-08 2005-10-27 Sharp Corp Solar cell and solar cell module
JP2006059991A (en) * 2004-08-19 2006-03-02 Shin Etsu Handotai Co Ltd Solar battery module and its manufacturing method
WO2009041506A1 (en) * 2007-09-26 2009-04-02 Hitachi Chemical Company, Ltd. Member for conductor connection, method for manufacturing the same, connection structure, and solar cell module
JP2012124375A (en) * 2010-12-09 2012-06-28 Sony Chemical & Information Device Corp Solar cell module and method for manufacturing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016056546A1 (en) * 2014-10-06 2016-04-14 株式会社カネカ Solar cell, solar cell module, method for manufacturing solar cell, and method for manufacturing solar cell module
US10453981B2 (en) 2014-10-06 2019-10-22 Kaneka Corporation Solar cell, solar cell module, method for manufacturing solar cell, and method for manufacturing solar cell module

Also Published As

Publication number Publication date
JP6083639B2 (en) 2017-02-22
WO2014045974A1 (en) 2014-03-27

Similar Documents

Publication Publication Date Title
JP5842170B2 (en) Solar cell module
WO2012102188A1 (en) Solar cell and solar cell module
WO2013168612A1 (en) Solar cell module
JP2013098496A (en) Solar battery module and manufacturing method thereof
WO2016157684A1 (en) Solar cell module
JPWO2018150894A1 (en) Solar cell module
JP6183619B2 (en) Solar cell module
JP5909667B2 (en) Solar cell module and manufacturing method thereof
JP6083639B2 (en) Solar cell module
WO2012165001A1 (en) Solar cell module and method for manufacturing same
JPWO2014033802A1 (en) Solar cell module
JP2015195297A (en) solar cell module
JP2015065303A (en) Solar cell module and method of manufacturing the same
JP5598986B2 (en) Solar cell module
JP5540738B2 (en) Insulating substrate for solar cell, solar cell module, and method for manufacturing solar cell insulating substrate
JP6504365B2 (en) Solar cell module
WO2013042683A1 (en) Solar cell module
JP2018041840A (en) Solar cell module and resin sheet
JPWO2014002201A1 (en) Solar cell module manufacturing method and solar cell module
JP5927560B2 (en) Manufacturing method of solar cell module
JP2017063140A (en) Solar battery module
WO2017170214A1 (en) Solar battery module
JP5906422B2 (en) Solar cell and solar cell module
JP2014146699A (en) Solar cell module
JP6124208B2 (en) Solar cell module

Legal Events

Date Code Title Description
A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20150224

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20150826

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20160719

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20160824

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20161227

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20170113

R151 Written notification of patent or utility model registration

Ref document number: 6083639

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151