WO2016031198A1 - 太陽電池モジュールの製造方法およびそれを利用した太陽電池モジュール - Google Patents
太陽電池モジュールの製造方法およびそれを利用した太陽電池モジュール Download PDFInfo
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- WO2016031198A1 WO2016031198A1 PCT/JP2015/004165 JP2015004165W WO2016031198A1 WO 2016031198 A1 WO2016031198 A1 WO 2016031198A1 JP 2015004165 W JP2015004165 W JP 2015004165W WO 2016031198 A1 WO2016031198 A1 WO 2016031198A1
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- Prior art keywords
- sealing member
- solar cell
- transition
- tab
- crossover
- Prior art date
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- 238000007789 sealing Methods 0.000 claims abstract description 185
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Classifications
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- 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
- H01L31/048—Encapsulation of modules
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- 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
- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
- H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
- H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules
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- 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
- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
- H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
- H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules
- H01L31/0201—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules comprising specially adapted module bus-bar structures
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- 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
- H01L31/048—Encapsulation of modules
- H01L31/0488—Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
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- 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
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- 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
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- 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
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- 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
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
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- 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
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/36—Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a manufacturing technique of a solar cell module, and more particularly to a method for manufacturing a solar cell module including a plurality of solar cells connected by crossover tab wires, and a solar cell module using the solar cell module.
- a plurality of solar cells that are solar cell elements are arranged in the solar cell module, and the plurality of solar cells are connected by wiring.
- the wiring is conspicuous in appearance, and the design of the solar cell module is degraded.
- a cover for concealing the wiring is used (for example, see Patent Document 1).
- a cover, a sealing member, and a transition tab wire as wiring are laminated in order, and a solar cell module is manufactured.
- the sealing member is larger than the cover (sheet).
- the crossover tab line and the sealing member can be fixed with tape, but the crossover tab line and the cover cannot be fixed with tape.
- the cover may be displaced, and the crossover tab line may not be hidden by the cover.
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide a technique for suppressing the displacement of the cover while ensuring the reliability of the solar cell module.
- a method for manufacturing a solar cell module sandwiches a first sealing member and a second sealing member between two protective members
- a method for manufacturing a solar cell module in which a solar cell is sandwiched between a second sealing member, the step of laminating a plurality of solar cells on one surface of the first sealing member, and a crossover tab line cover A step of fixing the transition tab wire cover and the transition tab wire sealing member with the first fixing member via a slit formed in the wide transition wire tab sealing member; a first sealing member; Inserting the fixed transition tab line cover and the transition tab line sealing member between the transition tab lines for connecting the solar cells, with the transition tab line cover facing the first sealing member side; , Fixed transition tab line cover and transition tab line It includes a stop member, a step of fixing the crossover tab wire in the second fixing member.
- Another aspect of the present invention is a solar cell module.
- a solar cell in which a first sealing member and a second sealing member are sandwiched between two protective members and a solar cell is sandwiched between the first sealing member and the second sealing member.
- a crossover tab cover that is a module and is stacked on one surface of the first sealing member, and a crossover tab sealing member that is stacked on a surface opposite to the first sealing member side surface of the crossover tab cover And a plurality of solar cells stacked on one surface of the first sealing member, and a transition tab wire sealing member through a slit formed in the transition tab wire sealing member having a size larger than that of the transition tab wire cover
- a fixing tab that is arranged on a surface opposite to the surface on the side of the connecting tab wire cover and that fixes the connecting tab wire for connecting a plurality of solar cells and the connecting tab wire cover And comprising.
- FIG. 1 is an exploded perspective view showing a configuration of a solar cell module according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional view along the y-axis of the solar cell module of FIG.
- FIG. 3 is a plan view from the light receiving surface side of the solar cell module of FIG.
- FIG. 4 is a plan view from the back side of the solar cell module of FIG.
- FIG. 5 is a flowchart showing a method for manufacturing a solar cell module according to an embodiment of the present invention.
- 6A is a partial plan view from the back surface side of the solar cell module of FIG. 4.
- 6B is a partial plan view from the back surface side of the solar cell module of FIG. 4.
- FIG. 1 is an exploded perspective view showing a configuration of a solar cell module according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional view along the y-axis of the solar cell module of FIG.
- FIG. 3 is a plan view from the light receiving surface
- FIG. 7 is a partial cross-sectional view along the x-axis of the solar cell module of FIG. 6A.
- FIG. 8A is a plan view showing a modification of the solar cell module of FIGS. 6A and 6B.
- FIG. 8B is a plan view showing a modification of the solar cell module of FIGS. 6A and 6B.
- FIG. 8C is a plan view showing a modification of the solar cell module of FIGS. 6A and 6B.
- Embodiments of the present invention relate to a technique for manufacturing a solar cell module.
- a sheet, a sealing member, a crossover tab line, and the like are laminated. If the sheet is moved before the lamination process and the curing process are performed, the sheet may be displaced from the original position. In order to prevent this, it is desirable to cross the sheet and fix it to the tab wire with tape. This is because the solar cells connected by the crossover tab wires have a resistance that is not easily shifted.
- the sealing member is larger than the sheet, it is impossible to fix the cross tab line and the sheet stacked with the sealing member interposed therebetween with a tape.
- the present embodiment aims to make the sheet (cover) difficult to slip even under such circumstances.
- the sealing member is provided with a slit, and the sheet and the crossover tab wire are fixed with a tape through the slit.
- FIG. 1 is an exploded perspective view showing a configuration of a solar cell module 100 according to an embodiment of the present invention.
- a rectangular coordinate system composed of an x-axis, a y-axis, and a z-axis is defined.
- the x axis and the y axis are orthogonal to each other in the plane of the solar cell module 100.
- the z axis is perpendicular to the x axis and the y axis and extends in the thickness direction of the solar cell module 100.
- the positive directions of the x-axis, y-axis, and z-axis are each defined in the direction of the arrow in FIG. 1, and the negative direction is defined in the direction opposite to the arrow.
- FIG. 1 is the upper side in FIG. 1
- the lower side in FIG. 1 is the back surface 92 side of the solar cell module 100
- the positive direction side end of the y axis in the solar cell module 100 is the reference side 94
- the negative direction side end of the y axis in the solar cell module 100 is the anti-reference side 96.
- FIG. 2 is a cross-sectional view of the solar cell module 100 along the y-axis.
- FIG. 2 is a cross-sectional view seen from the positive direction side of the x-axis.
- the solar cell module 100 includes a first protection member 10, a first sealing member 12, a first transition tab line cover 14a and a second transition tab line cover 14b, which are collectively referred to as a transition tab line cover 14, and a transition tab line sealing member.
- the first crossover tab line sealing member 16a and the second crossover tab line sealing member 16b which are collectively referred to as 16, the eleventh solar battery cell 18aa, the thirteenth solar battery cell 18ac, and the fourteenth solar battery, collectively referred to as the solar battery cell 18.
- the 1st protection member 10 is arrange
- the first protective member 10 is made of a light-transmitting and water-impervious glass, a light-transmitting plastic, or the like, and is formed in a rectangular plate shape.
- the first sealing member 12 is laminated on the surface opposite to the light receiving surface 90 of the first protective member 10. This is equivalent to being laminated on the negative direction side of the z-axis with respect to the first protective member 10.
- the 1st sealing member 12 is arrange
- thermoplastic resins like resin films such as EVA (ethylene vinyl acetate copolymer), PVB (polyvinyl butyral), a polyimide, are used, for example.
- a thermosetting resin may be used.
- the first sealing member 12 is formed of a rectangular sheet material having translucency and having a surface having substantially the same dimensions as the xy plane of the first protection member 10.
- the crossover tab line cover 14 is laminated on the surface of the first sealing member 12 opposite to the surface on the first protection member 10 side. This is equivalent to being laminated on the negative direction side of the z-axis with respect to the first sealing member 12.
- the transition tab line cover 14 includes a first transition tab line cover 14 a disposed on the reference side 94 side and a second transition tab line cover 14 b disposed on the non-reference side 96 side.
- the 1st crossover tab line cover 14a and the 2nd crossover tab line cover 14b are arrange
- the size of the crossover tab line cover 14 is determined so as to be able to cover a crossover tab line 20 for connecting a plurality of solar cells 18 to be described later.
- the size of the crossover tab line cover 14b is the same.
- the dimension in the x-axis direction of the first transition tab line cover 14a and the second transition tab line cover 14b is longer than the length from one end to the other end of the plurality of transition tab lines 20 arranged in the x-axis direction.
- the dimension in the y-axis direction of the first transition tab line cover 14a and the second transition tab line cover 14b is longer than the length from the solar cell 18 at the reference side 94 end to the transition tab line 20 at the reference side 94 end. Made longer.
- the transition tab wire cover 14 is provided to make the transition tab wire 20 inconspicuous when the solar cell module 100 is viewed from the light receiving surface 90 side. Therefore, the crossover tab line cover 14 is colored so as to be the same color or a similar color to the second protective member 26 and the second sealing member 24 described later when viewed from the light receiving surface 90 side.
- the transition tab wire cover 14 is formed of, for example, a synthetic resin such as PET (polyethylene terephthalate), PEN (polyethylene naphthalate), and PVF (polyvinyl fluoride), or a combination thereof.
- the transition tab wire sealing member 16 is laminated on the surface opposite to the surface on the first sealing member 12 side of the transition tab wire cover 14. This is equivalent to being stacked on the negative tab side of the z-axis with respect to the crossover tab line cover 14.
- the transition tab line sealing member 16 is disposed on the reference side 94 side, and is disposed on the first transition tab line sealing member 16a stacked on the first transition tab line cover 14a and on the non-reference side 96 side, A second transition tab line sealing member 16b stacked on the second transition tab line cover 14b.
- the size of the crossover tab line sealing member 16 is determined to be wider than the crossover tab cover 14. This is to improve the reliability of the solar cell module 100 by strengthening the adhesive force by the crossover tab line sealing member 16. Since the size of the transition tab line sealing member 16 is determined in this way, the transition tab line cover 14 and the transition tab line 20 are arranged in the z-axis direction across the transition tab line sealing member 16. The wire cover 14 and the crossover tab wire 20 are not in direct contact.
- the transition tab wire sealing member 16 is formed of the same material as the first sealing member 12.
- the plurality of solar battery cells 18 are stacked on the surface of the first sealing member 12 opposite to the surface on the first protection member 10 side. This is equivalent to being laminated on the negative direction side of the z-axis with respect to the first sealing member 12, similarly to the transition tab wire cover 14. Each solar cell 18 absorbs incident light and generates photovoltaic power.
- the solar battery cell 18 is formed of, for example, a semiconductor material such as crystalline silicon, gallium arsenide (GaAs), or indium phosphorus (InP).
- the structure of the solar battery cell 18 is not particularly limited, but here, as an example, it is assumed that crystalline silicon and amorphous silicon are laminated.
- the plurality of solar cells 18 are arranged in a matrix on the xy plane.
- six solar cells 18 are arranged in the x-axis direction, and four solar cells 18 are arranged in the y-axis direction.
- Two solar cells 18 adjacent in the y-axis direction are connected by a tab wire 22.
- positioned on the photovoltaic cell 18 is abbreviate
- the tab wire 22 arranged on the solar battery cell 18 will be described in detail with reference to FIG.
- the twenty-first solar cell 18ba and the thirty-first solar cell 18ca are connected to the third crossover tab wire 20c via the tab wire 22, and the forty-first solar cell 18da and the 51st solar cell 18ea are tab wires. 22 is connected to the fourth crossover tab line 20d.
- the eleventh solar battery cell 18aa is connected to the first crossover tab line 20a via the tab wire 22, and the 61st solar battery cell 18fa is connected to the second crossover tab wire 20b via the tab wire 22.
- the fourteenth solar cell 18ad and the twenty-fourth solar cell 18bd are connected to the fifth crossover tab line 20e through the tab line 22.
- the thirty-fourth solar battery cell 18 cd and the forty-fourth solar battery cell 18 dd are connected to the sixth crossover tab line 20 f through the tab line 22.
- the 54th solar cell 18ed and the 64th solar cell 18fd are connected to the seventh crossover tab line 20g via the tab line 22.
- the second sealing member 24 is laminated on the surface of the first sealing member 12 opposite to the surface on the first protection member 10 side. This is equivalent to being laminated on the negative direction side of the z-axis with respect to the first sealing member 12, similarly to the transition tab wire cover 14 and the solar battery cell 18. With such an arrangement, the second sealing member 24 seals the plurality of solar cells 18, the transition tab line sealing member 16, and the transition tab line cover 14 with the first sealing member 12.
- the second sealing member 24 can be the same as the first sealing member 12. However, unlike the first sealing member 12, it is not necessary to have translucency, and the second sealing member 24 can be white, black, or the like.
- the second protective member 26 is laminated on the surface of the second sealing member 24 opposite to the surface on the first sealing member 12 side. This is equivalent to being laminated on the negative direction side of the z-axis with respect to the second sealing member 24.
- the 2nd protection member 26 protects the back surface 92 of the solar cell module 100 as a back sheet.
- a resin film such as PET (polyethylene terephthalate), a laminated film having a structure in which an Al foil is sandwiched between resin films, and the like are used.
- the second protective member 26 is provided with an opening (not shown) penetrating in the z direction.
- the terminal box 28 is formed in a rectangular parallelepiped shape, and is bonded from the back surface 92 side of the second protective member 26 using an adhesive such as silicon so as to cover the opening of the second protective member 26.
- the terminal box 28 takes out the electrical output from the several photovoltaic cell 18 inside.
- the two connection cables 30 are connected to the terminal box 28 and transmit electrical outputs from the plurality of solar cells 18.
- a connection plug 32 is connected to the tip of each connection cable 30.
- FIG. 3 is a plan view from the light receiving surface 90 side of the solar cell module 100.
- illustration of the 1st protection member 10, the 1st sealing member 12, and the crossover tab sealing member 16 is abbreviate
- a dotted line is shown in the part in which the crossover tab line cover 14 should be arrange
- Each solar battery cell 18 is provided with a plurality of finger electrodes (not shown) extending in the x direction.
- Each solar battery cell 18 is also provided with a bus bar electrode extending in the y direction substantially orthogonal to the plurality of finger electrodes. Further, a tab wire 22 is attached so as to overlap the bus bar electrode.
- the tab wire 22 connects the bus bar electrode on the one light receiving surface 90 side of the adjacent solar cells 18 and the bus bar electrode on the other back surface 92 side.
- the two tab wires 22 for connecting the eleventh solar cell 18aa and the twelfth solar cell 18ab are the light receiving surface 90 side of the twelfth solar cell 18ab and the back surface 92 side of the eleventh solar cell 18aa. And electrically connect.
- the eleventh solar cell 18aa, the twelfth solar cell 18ab, the thirteenth solar cell 18ac, and the fourteenth solar cell 18ad are connected in series, and one combination is a y-axis. Formed in the direction. Moreover, since the same combination is formed also about the other photovoltaic cell 18, in FIG. 3, six combinations are arranged in an x-axis direction.
- the combination including the eleventh solar battery cell 18aa and the combination including the twenty-first solar battery cell 18ba are connected to the fifth crossover tab wire 20e on the non-reference side 96 side.
- one string is formed by electrically connecting the two combinations in series.
- the other two strings are formed by the sixth transition tab line 20f and the seventh transition tab line 20g. Each string is connected to a terminal box 28 (not shown) via the first crossover tab line 20a to the fourth crossover tab line 20d.
- the three transition tab lines 20 from the fifth transition tab line 20e to the seventh transition tab line 20g are arranged on a substantially straight line.
- Abbreviation means that it includes an error range.
- the third crossover tab line 20c and the fourth crossover tab line 20d are arranged on a substantially straight line, and in parallel therewith, the first crossover tab line 20a and the second crossover tab line 20b.
- the transition tab lines 20 are arranged in a line on the non-reference side 96 side, whereas the transition tab lines 20 are arranged in two lines on the reference side 94 side.
- the distance from the solar cell 18 on the reference side 94 side end to the row of the transition tab wires 20 on the reference side 94 side end is the anti-reference side from the solar cell 18 on the non-reference side 96 end side. It becomes longer than the distance to the crossover tab line 20 on the 96 end side.
- the dimension in the y direction of the second transition tab line cover 14b may be shorter than the dimension in the y direction of the first transition tab line cover 14a.
- the size of the first crossover tab line cover 14a and the second crossover tab line cover 14b is made common for the purpose of improving the efficiency of the manufacturing process and reducing the manufacturing cost. That is, the dimension in the y direction of the transition tab line cover 14 is determined so that the transition tab line 20 on the reference side 94 side can be hidden.
- FIG. 4 is a plan view from the back surface 92 side of the solar cell module 100.
- Each solar battery cell 18 is provided with a plurality of finger electrodes extending in the x direction and bus bar electrodes extending in the y direction, similarly to the light receiving surface 90 side. Note that the number of finger electrodes provided on the back surface 92 side may be different from the number of finger electrodes provided on the light receiving surface 90.
- each string is connected to the terminal box 28 via the first crossover tab line 20a to the fourth crossover tab line 20d.
- the terminal box 28 is provided to collect electricity generated in the solar battery cell 18.
- the first crossover tab line sealing member 16a is stacked on the positive side of the z-axis from the first crossover tab line 20a to the fourth crossover tab line 20d, and the z-axis positive side of the first crossover tab line sealing member 16a is more positive.
- a first crossover tab wire cover 14a is laminated on the direction side. As described above, since the first crossover tab line sealing member 16a is larger than the first crossover tab line cover 14a, originally, the first crossover tab line cover 14a is not visible, but here, the arrangement thereof is clear. In order to achieve this, the first crossover tab line cover 14a is indicated by a dotted line. As described above, each transition tab line 20 does not directly contact the first transition tab line cover 14a. The same applies to the non-reference side 96 side.
- FIG. 5 is a flowchart showing a method for manufacturing the solar cell module 100 according to the embodiment of the present invention.
- the first sealing member 12 is laminated on the first protective member 10 from the negative direction of the z-axis.
- a plurality of solar cells are stacked on one surface of the first sealing member 12 (step S11). Specifically, the plurality of solar cells 18 and the connecting tab wires 20 connecting them are laminated on the first sealing member 12 from the negative direction of the z axis.
- transition tab line cover 14 and the transition tab line sealing member 16 are attached to the first tape (first tape) through a slit formed in the transition tab line sealing member 16 having a size larger than that of the transition tab line cover 14. It is fixed with a fixing member) (step S12).
- the slit and the first tape will be described later.
- FIG. 6A is a partial plan view in which the vicinity of the 61st solar cell 18fa in FIG. 4 is enlarged.
- the first crossover tab wire sealing member 16a is disposed on the reference side 94 of the 61st solar cell 18fa, and extends in the y-axis direction from the solar cell 18 side portion of the first crossover tab wire sealing member 16a. Is provided with a slit 40.
- the length of the slit 40 is made longer than half of the dimension in the y-axis direction of the first crossover tab line sealing member 16a.
- the same slit is provided also in the negative direction end of the x-axis in the 1st crossover tab line sealing member 16a.
- FIG. 6B is a partial plan view in which the vicinity of the 64th solar cell 18fd in FIG. 4 is enlarged.
- the second crossover tab line sealing member 16b is disposed on the non-reference side 96 of the 64th solar cell 18fd, and extends in the y-axis direction from the solar cell 18 side portion of the second crossover tab line sealing member 16b.
- a slit 50 is provided. Similarly to the slit 40, the length of the slit 50 is also set to be longer than half of the dimension in the y-axis direction of the second transition tab wire sealing member 16 b. In addition, the same slit is provided also in the negative direction end of the x-axis in the 2nd crossing tab wire sealing member 16b.
- the first transition tab wire cover 14a and the first transition tab wire sealing member 16a are fixed by the first tape 42 through the slit 40 so as to correspond to the above-described step (3).
- the first tape 42 has an adhesive surface to which an adhesive is applied, and the adhesive surface is attached to the first transition tab wire cover 14a and the first transition tab wire sealing member 16a.
- the first tape 42 is, for example, a PET tape in which an adhesive is applied to one side of a PET (polyethylene terephthalate) material.
- FIG. 7 is a partial cross-sectional view along the x-axis of the solar cell module 100 of FIG. 6A.
- FIG. 7 is a cross-sectional view seen from the positive direction side of the y-axis.
- the first transition tab wire cover 14a is disposed in the x-axis direction
- the first transition tab wire sealing member 16a is disposed in the x-axis direction in the negative direction of the z-axis than the first transition tab wire cover 14a. Is done.
- the first transition tab line sealing member 16a is provided with a slit 40
- the first tape 42 is connected to the first transition tab line cover 14a and the first transition tab line sealing member 16a via the slit 40. Is pasted.
- FIG. 1 is a partial cross-sectional view along the x-axis of the solar cell module 100 of FIG. 6A.
- FIG. 7 is a cross-sectional view seen from the positive direction side of the y-axis.
- the second transition tab wire cover 14 b and the second transition tab wire sealing member 16 b are fixed by the first tape 52 through the slit 50.
- the first tape 52 has an adhesive surface to which an adhesive is applied, and is, for example, a PET tape in which an adhesive is applied to one side of a PET material. This process is performed before being placed on the line at the manufacturing plant.
- the fixed transition tab wire cover 14, the transition tab wire sealing member 16, and the transition tab wire 20 are fixed by the second tape (second fixing member) (step S14).
- the first transition tab wire sealing member 16 a and the second transition tab wire 20 b are fixed by the second tape 44.
- the second tape 44 is fixed to the first crossover tab line sealing member 16a by being attached to the first tape 42 that has already been attached.
- the second tape 44 has an adhesive surface to which an adhesive is applied, and is, for example, a PET tape in which an adhesive is applied to one side of a PET material.
- the 2nd tape 44 is affixed on the surface of the negative direction side of the z-axis in the 1st tape 42 affixed on the 1st crossover tab line sealing member 16a. Moreover, the 2nd tape 44 is affixed also on the surface of the negative direction side of the z-axis in the 2nd transition tab wire 20b.
- the second transition tab wire sealing member 16b and the seventh transition tab wire 20g are fixed by the second tape 54.
- the second tape 54 is fixed to the second crossover tab line sealing member 16b by being attached to the first tape 52 that has already been attached. This process is performed after being put on the line in the manufacturing plant.
- the transition tab wire cover is formed through the slit 40 formed in the transition tab wire sealing member 16 by performing two-stage fixing, that is, the first tape 42 and the like and the second tape 44 and the like.
- 14 and the crossover tab wire 20 are fixed by a fixing member formed by a combination of the first tape 42 and the second tape 44 and the like.
- the second sealing member 24 is laminated on the first sealing member 12 from the negative direction of the z-axis. Thereby, the 1st tape 42 grade
- the second protective member 26 is laminated on the second sealing member 24 from the negative direction of the z-axis.
- stacked by the 2nd protection member 26 from the 1st protection member 10 by the above process is formed.
- the laminate is set in a laminator and a lamination process is performed.
- air is extracted from the laminate by pressurizing the laminate under reduced pressure.
- the terminal box 28 is attached with an adhesive from the negative direction of the z-axis so as to cover the opening provided in the second protective member 26 in the integrated laminate.
- FIGS. 8A to 8C are plan views showing modifications of the solar cell module 100.
- FIG. FIGS. 8A to 8C are plan views from the back surface 92 side of the solar cell module 100 as in FIG. 4, but in order to explain the position of the slits, a plurality of solar cells 18 and a crossover tab line are sealed. Only member 16 is shown.
- the slit is arranged at the same position as before. As illustrated, both the slit 40 and the slit 60 provided in the first crossover tab line sealing member 16a face the solar cell 18 side. Moreover, both the slit 50 and the slit 70 provided in the 2nd crossing tab wire sealing member 16b are also facing the photovoltaic cell 18 side.
- the slit is arranged so as to face the side opposite to the solar cell 18 side.
- both the slit 40 and the slit 60 provided in the first crossover tab line sealing member 16a face opposite to the solar battery cell 18 side.
- both the slit 50 and the slit 70 provided in the 2nd crossing tab wire sealing member 16b have faced opposite to the photovoltaic cell 18 side.
- the slit direction is different between the first crossover tab line sealing member 16a and the second crossover tab line sealing member 16b.
- both the slit 40 and the slit 60 provided in the first crossover tab line sealing member 16a face opposite to the solar battery cell 18 side.
- both the slit 50 and the slit 70 provided in the second crossover tab line sealing member 16b face the solar battery cell 18 side.
- the crossover tab wire cover and the crossover tab wire are fixed by the fixing member via the slit formed in the crossover tab wire sealing member, so that the crossover tab wire sealing member is the crossover tab. Even if it is wider than the line cover, it is possible to prevent the crossover tab line cover from shifting. Further, since the shift tab line cover is prevented from shifting, the shift tab line cover can be hidden by the shift tab line cover. Moreover, since the transition tab line is hidden by the transition tab line cover, the transition tab line can be made inconspicuous when viewed from the light receiving surface side. Moreover, since the crossover tab line becomes inconspicuous, the appearance of the solar cell module can be improved. Moreover, since the crossover tab line sealing member is made wider than the crossover tab line cover, the reliability of the solar cell module can be improved.
- the slit formed in the crossover tab line sealing member is laminated toward the solar battery cell side, the tape can be easily pasted through the slit. Moreover, since the size of the transition tab line sealing member is limited to only one type, preparation of the transition tab line sealing member can be facilitated. Moreover, since the size of the crossover tab sealing member is limited to only one type, the manufacturing cost of the crossover tab sealing member can be reduced. In addition, before placing on the line, the transition tab wire cover and the transition tab wire sealing member are fixed with the first tape through the slit, and after placing on the line, the transition tab wire sealing member and the transition tab wire Is fixed with the second tape, so that the tape can be easily attached.
- the outline of this example is as follows.
- the first sealing member 12 and the second sealing member 24 are sandwiched between the first protective member 10 and the second protective member 26, and the first sealing is performed.
- the transition tab line cover 14 and the transition tab line sealing member 16 are connected to the first tape (first tape).
- the transition tab wire cover 14 is connected to the first sealing member between the first sealing member 12 and the transition tab wire 20 for connecting the plurality of solar cells 18.
- a fixed transition while facing the 12 side The step of inserting the cable cover 14 and the transition tab line sealing member 16, the fixed transition tab line cover 14, the transition tab line sealing member 16, and the transition tab line 20 are connected to the second tape (second fixing member). ) 44 for fixing.
- the slit 40 formed in the crossover tab sealing member 16 may be inserted toward the solar battery cell 18 side.
- Another aspect of the present invention is a solar cell module 100.
- the first sealing member 12 and the second sealing member 24 are sandwiched between the first protective member 10 and the second protective member 26, and the first sealing member 12 and the second sealing member are sandwiched.
- the transition tab wire 20 is arranged on the surface opposite to the surface of the transition tab wire sealing member 16 on the side of the transition tab wire cover 14 through the slit 40 formed in the transition tab wire sealing member 16 of the size.
- connecting a plurality of solar cells 18 It includes a crossover tab wire 20 to a fixing member 44 for fixing the crossover tab wire cover 14, the.
- the fixing members 42, 44 include a first fixing member 42 that fixes the transition tab wire cover 14 and the transition tab wire sealing member 16 through the slit 40 formed in the transition tab wire sealing member 16, and a transition tab. You may provide the 2nd fixing member 44 which fixes the wire sealing member 16 and the crossing tab wire 20.
Abstract
Description
12 第1封止部材
14 渡りタブ線カバー
16 渡りタブ線封止部材
18 太陽電池セル
20 渡りタブ線
24 第2封止部材
26 第2保護部材
40、50 スリット
42、52 第1テープ(第1固定部材)
44、54 第2テープ(第2固定部材)
100 太陽電池モジュール
Claims (4)
- 2つの保護部材の間に第1封止部材と第2封止部材とをはさみ、前記第1封止部材と前記第2封止部材との間に太陽電池セルをはさむ太陽電池モジュールの製造方法であって、
前記第1封止部材の一面に、複数の太陽電池セルを積層するステップと、
渡りタブ線カバーよりも広いサイズの渡りタブ線封止部材に形成されたスリットを介して、前記渡りタブ線カバーと前記渡りタブ線封止部材とを第1固定部材で固定するステップと、
前記第1封止部材と、複数の太陽電池セルを接続するための渡りタブ線との間に、前記渡りタブ線カバーを前記第1封止部材側に向けながら、固定した前記渡りタブ線カバーと前記渡りタブ線封止部材とを挿入するステップと、
固定した前記渡りタブ線カバーと前記渡りタブ線封止部材と、前記渡りタブ線とを第2固定部材で固定するステップと、
を含む太陽電池モジュールの製造方法。 - 前記挿入するステップでは、前記渡りタブ線封止部材に形成されたスリットを太陽電池セル側に向けて挿入する請求項1に記載の太陽電池モジュールの製造方法。
- 2つの保護部材の間に第1封止部材と第2封止部材とをはさみ、前記第1封止部材と前記第2封止部材との間に太陽電池セルをはさむ太陽電池モジュールであって、
前記第1封止部材の一面に積層される渡りタブ線カバーと、
前記渡りタブ線カバーにおける第1封止部材側の面とは反対の面に積層される渡りタブ線封止部材と、
前記第1封止部材の一面に積層される複数の太陽電池セルと、
前記渡りタブ線カバーよりも広いサイズの前記渡りタブ線封止部材に形成されたスリットを介して、前記渡りタブ線封止部材における渡りタブ線カバー側の面とは反対の面に配置される渡りタブ線であって、かつ前記複数の太陽電池セルを接続するための渡りタブ線と、前記渡りタブ線カバーとを固定する固定部材と、
を備える太陽電池モジュール。 - 前記固定部材は、
前記渡りタブ線封止部材に形成されたスリットを介して、前記渡りタブ線カバーと前記渡りタブ線封止部材とを固定する第1固定部材と、
前記渡りタブ線封止部材と前記渡りタブ線とを固定する第2固定部材と、
を備える請求項3に記載の太陽電池モジュール。
Priority Applications (3)
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EP15835053.8A EP3188254B1 (en) | 2014-08-29 | 2015-08-20 | Manufacturing method for solar cell module and solar cell module manufactured by same |
JP2016544949A JP6536838B2 (ja) | 2014-08-29 | 2015-08-20 | 太陽電池モジュールの製造方法およびそれを利用した太陽電池モジュール |
US15/444,618 US10439085B2 (en) | 2014-08-29 | 2017-02-28 | Manufacturing method for solar cell module provided with multiple solar cells connected by tab lines and solar cell module manufactured by same |
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US15/444,618 Continuation US10439085B2 (en) | 2014-08-29 | 2017-02-28 | Manufacturing method for solar cell module provided with multiple solar cells connected by tab lines and solar cell module manufactured by same |
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CN116420231A (zh) | 2020-09-03 | 2023-07-11 | Gaf能源有限责任公司 | 建筑集成光伏系统 |
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US11459757B2 (en) | 2021-01-19 | 2022-10-04 | GAF Energy LLC | Watershedding features for roofing shingles |
WO2022236029A1 (en) | 2021-05-06 | 2022-11-10 | GAF Energy LLC | Photovoltaic module with transparent perimeter edges |
WO2022256567A1 (en) * | 2021-06-03 | 2022-12-08 | GAF Energy LLC | Roofing module system |
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US11824486B2 (en) | 2022-01-20 | 2023-11-21 | GAF Energy LLC | Roofing shingles for mimicking the appearance of photovoltaic modules |
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US20170179319A1 (en) | 2017-06-22 |
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