WO2016047029A1 - 太陽電池モジュール及び太陽電池モジュールの製造方法 - Google Patents
太陽電池モジュール及び太陽電池モジュールの製造方法 Download PDFInfo
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- WO2016047029A1 WO2016047029A1 PCT/JP2015/004167 JP2015004167W WO2016047029A1 WO 2016047029 A1 WO2016047029 A1 WO 2016047029A1 JP 2015004167 W JP2015004167 W JP 2015004167W WO 2016047029 A1 WO2016047029 A1 WO 2016047029A1
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- sheet
- sheet layer
- filling member
- solar cell
- cell module
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
- H10F19/80—Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells
- H10F19/85—Protective back sheets
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
- H10F19/20—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules comprising photovoltaic cells in arrays in or on a single semiconductor substrate, the photovoltaic cells having planar junctions
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
- H10F19/80—Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
- H10F19/90—Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/93—Interconnections
- H10F77/933—Interconnections for devices having potential barriers
- H10F77/935—Interconnections for devices having potential barriers for photovoltaic devices or modules
- H10F77/937—Busbar structures for modules
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/93—Interconnections
- H10F77/933—Interconnections for devices having potential barriers
- H10F77/935—Interconnections for devices having potential barriers for photovoltaic devices or modules
- H10F77/939—Output lead wires or elements
-
- 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
Definitions
- the present invention relates to a solar cell module and a method for manufacturing the solar cell module.
- solar cell modules are being developed as photoelectric conversion devices that convert light energy into electrical energy.
- the solar cell module is expected as a new energy source because it can convert inexhaustible sunlight directly into electricity, and it has a smaller environmental load and is cleaner than power generation using fossil fuels.
- This type of solar cell module has, for example, a structure in which a plurality of solar cells are sealed with a filler between a light-transmitting substrate and a back sheet.
- the solar cell module includes a glass substrate disposed on the light receiving surface side, a back sheet, a plurality of solar cells arranged in a matrix between the glass substrate and the back sheet, a back sheet and a glass substrate. (For example, patent document 1).
- a plurality of solar cells arranged in one of the row direction and the column direction are formed into cell strings by connecting adjacent solar cells with tab wiring.
- the crossover wiring is provided in the both ends of the solar cell module, and each solar cell of each of the head and the tail in a plurality of cell strings is connected to the crossover wiring via the tab wiring.
- the crossover wiring has a metallic luster in appearance
- the crossover wiring is conspicuous when the solar cell module is viewed from the light receiving surface side. For this reason, there exists a problem that the designability of the whole external appearance of a solar cell module worsens.
- the transition wiring in order to conceal the transition wiring, it is conceivable to cover the transition wiring from the light receiving surface side with a hidden sheet, but the design may be deteriorated by arranging the hidden sheet, and the workability is also deteriorated. In some cases.
- This invention was made in order to solve such a subject, and it aims at providing the solar cell module which can hide a crossover wiring, without deteriorating the designability and workability
- one aspect of a solar cell module is a solar cell module having a light-transmitting substrate and a back sheet, and is arranged between the substrate and the back sheet.
- a plurality of solar cells, a crossover wiring commonly connecting tab wirings connected to each of the plurality of solar cells, and a hidden sheet arranged to cover the crossover wiring from the substrate side A filling member filled between the substrate and the back sheet, wherein the hidden sheet is a first sheet layer in contact with the filling member, and a second layer laminated on the first sheet layer.
- the first sheet layer and the second sheet layer are made of a material having the same color as the material of the back sheet or the filling member, a transparent material, or a translucent material.
- Sheet It is characterized by having adhesive properties with respect to the filling member.
- one aspect of the method for manufacturing a solar cell module according to the present invention is a method for manufacturing a solar cell module having a light-transmitting substrate and a back sheet, and between the substrate and the back sheet, A plurality of solar cells, a transition wiring that connects tab wirings connected to each of the plurality of solar cells in common, a hidden sheet that covers the transition wiring from the substrate side, and a filling member are disposed.
- the hidden sheet includes a first sheet layer in contact with the filling member, and a second sheet layer laminated on the first sheet layer, wherein the first sheet layer and the first sheet layer
- the second sheet layer is made of a material having the same color as the material of the back sheet or the filling member, a transparent material or a translucent material, and the first sheet layer has adhesiveness to the filling member.
- Crossover wiring can be hidden without deteriorating design and workability.
- FIG. 1 is a plan view of a solar cell module according to an embodiment.
- FIG. 2 is a partially enlarged cross-sectional view (cross-sectional view taken along line AA in FIG. 1) of the solar cell module according to the embodiment.
- FIG. 3 is a diagram for explaining a laminating process in the solar cell module according to the embodiment.
- FIG. 4A is a cross-sectional view (a cross-sectional view before laminating) showing a configuration of a solar cell module according to a comparative example.
- FIG. 4B is a cross-sectional view (cross-sectional view after laminating) showing a configuration of a solar cell module according to a comparative example.
- FIG. 1 is a plan view of a solar cell module according to an embodiment.
- FIG. 2 is a partially enlarged sectional view of the solar cell module taken along line AA in FIG.
- the solar cell module 1 includes a substrate 10, a back sheet 20, a plurality of solar cells 30, a transition wiring 40, a hidden sheet 50, and a filling member 60.
- the solar cell module 1 in the present embodiment further includes a frame 70.
- the solar cell module 1 has a structure in which solar cells 30 are sealed with a filling member 60 between a substrate 10 and a back sheet 20 facing each other.
- the planar view shape of the solar cell module 1 is, for example, a rectangular shape.
- the solar cell module 1 has a rectangular shape with a horizontal length of about 1600 mm and a vertical length of about 800 mm. Note that the shape of the solar cell module 1 is not limited to a rectangular shape.
- the substrate 10 is a translucent substrate having translucency, for example, a glass substrate (transparent glass substrate) made of a transparent glass material.
- substrate 10 is not restricted to a glass substrate, The resin board etc. which consist of translucent resin materials, such as a transparent resin material, may be sufficient.
- the substrate 10 is a surface protection member that protects the surface of the solar cell module 1 and protects the inside of the solar cell module 1 from the external environment such as wind and rain, external impact, and fire.
- substrate 10 is arrange
- an antireflection film may be formed on the surface of the substrate 10.
- the back sheet 20 is a back surface protection member that protects the back surface of the solar cell module 1 and protects the inside of the solar cell module 1 from the external environment.
- the back sheet 20 is a resin sheet made of, for example, PET (polyethylene terephthalate) or PEN (polyethylene naphthalate).
- the color of the backsheet 20 is black, but may be other than black.
- the back sheet 20 is not limited to resin, and may be made of glass, for example.
- the photovoltaic cell 30 is a photoelectric conversion element (photovoltaic element) that converts light such as sunlight into electric power. As shown in FIG. 1, a plurality of solar cells 30 are arranged in a matrix (matrix shape) on the same plane to form a cell array. As shown in FIG. 2, the plurality of solar cells 30 (cell array) are arranged between the substrate 10 and the back sheet 20.
- the plurality of solar cells 30 arranged in one of the row direction and the column direction are electrically connected to each other by the conductive tab wiring (interconnector) 31, so that the cell strings (solar Battery cell group).
- the plurality of solar battery cells 30 in the cell string are connected in series.
- the tab wiring 31 can be produced by, for example, cutting a metal foil, such as a copper foil or a silver foil, with the entire surface covered with solder into a strip shape having a predetermined length.
- a plurality of solar cells 30 arranged in the row direction are connected by a tab wiring 31 to form a cell string.
- cell electrodes in which a plurality of solar cells 30 are connected in a row are formed by sequentially connecting the electrodes of adjacent solar cells 30 with three tab wires 31 via solder or the like. Can be produced.
- FIG. 1 three tab wirings 31 are connected to each solar battery cell 30, and a single cell string is configured by connecting 12 solar battery cells 30 along the row direction. In FIG. 1, six cell strings are configured.
- the transition wiring 40 is a horizontal wiring that connects the tab wirings 31 connected to each of the plurality of solar cells 30 in common.
- the crossover wiring 40 can be produced, for example, by cutting a metal foil such as a copper foil or a silver foil with the entire surface covered with solder into a strip shape having a predetermined length.
- the crossover wiring 40 is provided at both ends of the solar cell module 1 in the longitudinal direction.
- four crossover wirings 40 are arranged at one end portion in the longitudinal direction of the solar cell module 1 (left end portion in FIG. 1).
- two crossover wirings 40 are arranged at the other end (the right end in FIG. 1) that is the end opposite to the one end in the longitudinal direction of the solar cell module 1.
- the leading solar cell 30 in each cell string is electrically connected to the crossover wiring 40 via the tab wiring 31 in the vicinity of one end portion of the solar cell module 1 in the longitudinal direction.
- the last solar cell 30 in each cell string is electrically connected to the crossover wiring 40 via the tab wiring 31 in the vicinity of the other end portion in the longitudinal direction of the solar cell module 1.
- a plurality of (six in FIG. 1) cell strings are connected in series or in parallel to form a cell array. That is, all the solar cells 30 in the solar cell module 1 are connected in series or in parallel.
- the hidden sheet 50 is arranged so as to cover the crossover wiring 40 from the substrate 10 side in order to hide the crossover wiring 40. Therefore, as shown in FIG. 1, the hidden sheet 50 overlaps with the crossover wiring 40 and is larger than the size of the crossover wiring 40 in plan view.
- the crossover wiring 40 is provided at two ends of the solar cell module 1 in the longitudinal direction, that is, at one end and the other end in the longitudinal direction. It is provided at both ends in the longitudinal direction of the module 1.
- the hidden sheet 50 provided at one end portion in the longitudinal direction of the solar cell module 1 is all (four in FIG. 1) arranged at the one end portion. It arrange
- the hidden sheet 50 provided at the other end portion in the longitudinal direction of the solar cell module 1 is all (two in FIG. 1) of the transition wires 40 arranged in the other end portion. Are arranged so as to cover all together.
- the hidden sheet 50 has a laminated structure of a plurality of layers, and includes a first sheet layer 51 a in contact with the filling member 60, and a second sheet layer 51 b stacked on the first sheet layer 51 a.
- the hidden sheet 50 in the present embodiment further includes a third sheet layer 51c laminated on the second sheet layer 51b.
- the hidden sheet 50 is a laminated structure of three sheet layers.
- the layer thickness of the first sheet layer 51a and the third sheet layer 51c is 30 ⁇ m
- the layer thickness of the second sheet layer 51b is 50 ⁇ m.
- the first sheet layer 51a and the second sheet layer 51b are made of a material having the same color as the material of the back sheet 20 or the filling member 60 (back sheet side filling member 61), a transparent material, or a translucent material.
- a transparent material is used as the first sheet layer 51a.
- a material having the same color as the back sheet 20 or the filling member 60 (back sheet side filling member 61) is used as the first sheet layer 51a.
- the second sheet layer 51b is matched to the color of the back sheet 20. Black material.
- the third sheet layer 51c is made of the same material (transparent material) as the first sheet layer 51a.
- the background color of the hidden sheet 50 or the filling member 60 is black
- the background color is black in the sheet
- the first sheet layer 51a is a resin sheet (PE sheet) made of polyethylene (PE)
- the second sheet layer 51b is a resin sheet (PET sheet) made of polyethylene terephthalate (PET). It is.
- the third sheet layer 51c is made of the same material as the first sheet layer 51a, and is a resin sheet (PE sheet) made of polyethylene (PE) in the present embodiment.
- the first sheet layer 51 a has adhesiveness to the filling member 60. Thereby, the 1st sheet
- the first sheet layer 51 a has adhesiveness to the filling member 60 filled between the crossover wiring 40 and the hidden sheet 50.
- the first sheet layer 51 a is in contact with the back sheet side filling member 61 and has adhesiveness to the back sheet side filling member 61. Thereby, the 1st sheet layer 51a and back sheet side filling member 61 can be pasted up without using an adhesive agent.
- PE polyethylene
- EVA ethylene vinyl acetate
- the third sheet layer 51 c also has adhesiveness to the filling member 60. Thereby, the third sheet layer 51c and the filling member 60 can be bonded without separately sandwiching an adhesive.
- the third sheet layer 51 c has adhesiveness to the filling member 60 filled between the substrate 10 and the hidden sheet 50.
- the third sheet layer 51 c is in contact with the substrate side filling member 62 and has adhesiveness to the substrate side filling member 62. Thereby, the 3rd sheet layer 51c and the board
- the third sheet layer 51c made of PE and the substrate-side filling member 62 made of EVA do not need to use an adhesive. Glue.
- the first sheet layer 51a and the third sheet layer 51c are bonded and assimilated with the filling member 60 after the laminating process.
- the material of the second sheet layer 51b is PET.
- the hidden sheet 50 having good long-term reliability and strength (beam) necessary for appearance can be obtained.
- the use of PET as the material for the second sheet layer 51b facilitates work in the manufacturing process. Specifically, in the manufacturing process, the substrate 10 (glass), the substrate-side filling member 62, and the transition wiring 40 are stacked in this order, and the hidden sheet 50 is inserted between the substrate-side filling member 62 and the transition wiring 40. . For example, the transition wiring 40 is lifted with tweezers, and the hidden sheet 50 is inserted into the gap between the transition wiring 40 and the substrate-side filling member 62. At this time, by using PET having a relatively high strength as the material of the second sheet layer 51b, the hidden sheet 50 can be easily inserted.
- the hidden sheet 50 further bonds the first adhesive layer 52a that bonds the first sheet layer 51a and the second sheet layer 51b, and the second sheet layer 51b and the third sheet layer 51c. And a second adhesive layer 52b.
- the first sheet layer 51a and the second sheet layer 51b can be easily adhered.
- the second sheet layer 51b and the third sheet layer 51c can be easily bonded by inserting the second adhesive layer 52b between the second sheet layer 51b and the third sheet layer 51c. Can do.
- the color of the first adhesive layer 52 a and the second adhesive layer 52 b is black according to the color of the back sheet 20.
- the background color of the hidden sheet 50 or the filling member 60 is black
- the background color is also black in the resin layer which comprises the hidden sheet 50. In some cases, it does not use a noticeable white layer.
- the hidden sheet 50 configured as described above can be manufactured as follows. For example, three plate-like sheet layers of a plate-like first sheet layer 51a, a plate-like second sheet layer 51b, and a plate-like third sheet layer 51c are combined with the first adhesive layer 52a and the second adhesive layer. What was bonded and bonded by the two adhesive layers of the layer 52b is cut into strips to a predetermined length. Since the hidden sheet 50 in the present embodiment covers a plurality of the crossover wirings 40 arranged at both ends in the longitudinal direction at a time, the length is about the length of the short side of the solar cell module 1. ing.
- the filling member (filler) 60 is disposed between the substrate 10 and the back sheet 20.
- the filling member 60 is filled so as to fill the space between the substrate 10 and the back sheet 20. Therefore, the solar battery cell 30 is sealed by the filling member 60.
- the filling member 60 is formed by laminating (lamination processing) two filling members sandwiching the solar battery cell 30.
- the laminating process at this time will be described with reference to FIG.
- FIG. 3 is a diagram for explaining a laminating process in the solar cell module according to the embodiment.
- a plurality of cell strings made up of a plurality of solar cells 30 are sandwiched between a backsheet-side filling member 61 and a substrate-side filling member 62, and the backsheet 20 and the substrate 10 are placed below and above it. Arrange and prepare a predetermined laminate.
- thermocompression bonding heat and pressure bonding
- a vacuum at a temperature of, for example, 100 ° C. or higher.
- the space between the substrate 10 and the back sheet 20 is filled with the filling member 60, and the solar battery cell 30, the crossover wiring 40, and the hidden sheet 50 are sealed with the filling member 60. .
- the backsheet-side filling member (first filling member) 61 is a sheet disposed between the plurality of solar cells 30 and the crossover wiring 40 and the backsheet 20, and mainly the crossover wiring 40 and the sun by laminating processing. It is filled between the battery cell 30 and the back sheet 20.
- substrate side filling member (2nd filling member) 62 is a sheet
- the back sheet side filling member 61 and the substrate side filling member 62 are, for example, resin sheets made of a resin material, and in the present embodiment, are EVA sheets made of ethylene vinyl acetate (EVA). Moreover, the color of the back sheet
- the frame 70 is an outer frame that covers the peripheral edge of the solar cell module 1.
- Frame 70 in the present embodiment is an aluminum frame (aluminum frame) made of aluminum. As shown in FIG. 1, four frames 70 are used and are respectively attached to the end portions of the four sides of the solar cell module 1.
- the frame 70 is fixed to the end of each side of the solar cell module 1 with an adhesive 71 made of, for example, silicone resin.
- the solar cell module is provided with a terminal box for taking out the electric power generated by the solar cell 30.
- the terminal box is fixed to, for example, the back sheet 20, and a plurality of circuit components mounted on the circuit board are built in the terminal box.
- FIG. 4A and FIG. 4B are cross-sectional views illustrating the configuration of a solar cell module according to a comparative example, and show a state before lamination processing (FIG. 4A) and a state after lamination processing (FIG. 4B), respectively.
- the first and last solar cells in the cell string are connected to the transition wiring via the tab wiring, but the transition wiring has a metallic luster.
- the crossover wiring becomes conspicuous. For this reason, the designability as the whole solar cell module deteriorates.
- the inventors of the present application studied to cover the transition wiring 40 from the substrate 10 side (light receiving surface side) with a hidden sheet 500 in order to conceal the transition wiring 40.
- the hidden sheet 500 examined at this time includes a laminated PET of a first sheet layer 510a (38 ⁇ m) made of PET and a second sheet layer 510b (50 ⁇ m) made of PET, and a third sheet layer 510c made of PE.
- a structure having a structure in which an adhesive layer 520 is adhered is used. Note that the first sheet layer 510a and the second sheet layer 510b were white, the third sheet layer 510c was transparent, and the adhesive layer 520 was black.
- the hidden sheet 500 includes the materials of the first sheet layer 510a, the second sheet layer 510b, the adhesive layer 520, and the third sheet layer 510c. The color was selected.
- the white first sheet layer 510a and the white second sheet layer depend on the viewing angle as shown in FIG. 4B.
- the edge portion 510b is visible from the light receiving surface. For this reason, the white line (streaky white line) along the longitudinal direction of the hidden sheet 500 is visually recognized, and the designability may be deteriorated.
- the hidden sheet 500 is manufactured by cutting a laminated sheet layer into a predetermined size, but when the cut state is poor, the edge portions of the first sheet layer 510a and the white second sheet layer 510b protrude. (Exposed) and the white line may be noticeable.
- the use of the hidden sheet 500 having the above structure causes a decrease in workability and a high cost.
- this point will also be described in detail.
- the hidden sheet 500 having the above-described configuration when used, it is necessary to arrange a hidden filling member 63 between the hidden sheet 500 and the crossover wiring 40. That is, the hidden sheet 500 needs to be adhered to the crossover wiring 40 via the hidden filling member 63.
- the hidden filling member 63 for example, the same material (EVA sheet) as the back sheet side filling member 61 and the substrate side filling member 62 was used.
- the present invention has been made on the basis of such knowledge, and as a result of intensive studies, the inventors of the present application have deteriorated design and workability by using the hidden sheet 50 having the configuration shown in FIG. It has been found that the crossover wiring 40 can be hidden without causing it.
- a hidden sheet having at least first sheet layer 51a in contact with filling member 60 and second sheet layer 51b stacked on first sheet layer 51a. 50 is used.
- the material similar to the material of back sheet 20 or filling member 60 a transparent material, or a translucent material is used.
- the color of the back sheet 20 or the filling member 60 which is the background color of the hidden sheet 50 becomes the same color as the hidden sheet 50 or becomes inconspicuous, so that the edge portion of the hidden sheet 50 is not visually recognized.
- the hidden sheet 50 is hardly noticeable.
- the connecting wire 40 can be hidden by the hidden sheet 50, and the hidden sheet 50 can be made inconspicuous regardless of the cut state of the hidden sheet 50, so that the design of the overall appearance of the solar cell module 1 can be improved. it can.
- the first sheet layer 51a since the first sheet layer 51a has adhesiveness to the filling member 60, the first sheet layer 51a is substituted for the hidden filling member 63 shown in the comparative example of FIG. 4A. Can do.
- the hidden filling member 63 made of EVA can be easily replaced with the first sheet layer 51a made of PE.
- the hidden sheet 50 can be adhered to the filling member 60 without using the hidden filling member 63. Therefore, an increase in the number of parts can be suppressed, so that deterioration in workability can be suppressed and an increase in cost can be suppressed.
- the crossover wiring 40 can be hidden, without deteriorating the designability and workability
- the first sheet layer 51 a is made of a transparent material or a semi-transparent material
- the second sheet layer 51 b is similar in color to the back sheet 20 or the filling member 60.
- the back sheet 20 or the filling member 60 is black
- the second sheet layer 51b is also black.
- the white line of the hidden sheet is visually recognized by the black background color of the back sheet 20 or the filling member 60 when the white layer is present. Can be avoided.
- the hidden sheet 50 further includes a third sheet layer 51c laminated on the second sheet layer 51b, and the third sheet layer 51c is made of the same material as the first sheet layer 51a. It is configured.
- the crossover wiring 40 can be hidden without deteriorating the design and workability.
- the substrate side filling member 62 filled between the hidden sheet 50 and the substrate 10 is provided, the third sheet layer 51c is in contact with the substrate side filling member 62, and It has adhesiveness to the substrate side filling member 62.
- the hidden sheet 50 can be easily adhered to the substrate-side filling member 62, the workability when using the hidden sheet 50 can be further improved.
- the hidden sheet 50 may be configured without using a black layer.
- the embodiment can be realized by arbitrarily combining the components and functions in each embodiment without departing from the scope of the present invention, or a form obtained by subjecting each embodiment to various modifications conceived by those skilled in the art. Forms are also included in the present invention.
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Abstract
Description
まず、実施の形態に係る太陽電池モジュール1の構成について、図1及び図2を用いて説明する。図1は、実施の形態に係る太陽電池モジュールの平面図である。図2は、図1のA-A線における同太陽電池モジュールの一部拡大断面図である。
基板10は、透光性を有する透光性基板であり、例えば、透明ガラス材料からなるガラス基板(透明ガラス基板)である。なお、基板10は、ガラス基板に限るものではなく、透明樹脂材料等の透光性樹脂材料からなる樹脂基板等であってもよい。
バックシート20は、太陽電池モジュール1の裏面を保護する裏面保護部材であり、太陽電池モジュール1の内部を外部環境から保護する。バックシート20は、例えば、PET(ポリエチレンテレフタレート)又はPEN(ポリエチレンナフタレート)からなる樹脂シートである。
太陽電池セル30は、太陽光等の光を電力に変換する光電変換素子(光起電力素子)である。図1に示すように、太陽電池セル30は、同一平面において行列状(マトリクス状)に複数枚配列されてセルアレイを構成している。図2に示すように、複数の太陽電池セル30(セルアレイ)は、基板10とバックシート20との間に配列されている。
渡り配線40は、複数の太陽電池セル30の各々に接続されたタブ配線31同士を共通に接続する横配線である。渡り配線40は、例えば、銅箔や銀箔等の金属箔の表面全体を半田で被覆したものを、所定の長さに短冊状に切断することによって作製することができる。
隠しシート50は、渡り配線40を隠すために、基板10側から渡り配線40を覆うように配置される。したがって、図1に示すように、平面視において、隠しシート50は、渡り配線40と重なっており、かつ、渡り配線40の大きさよりも大きい。
充填部材(充填材)60は、基板10とバックシート20との間に配置される。本実施の形態において、充填部材60は、基板10とバックシート20との間を埋めるように充填されている。したがって、太陽電池セル30は充填部材60によって封止されている。
フレーム70は、太陽電池モジュール1の周縁端部を覆う外枠である。本実施の形態におけるフレーム70は、アルミ製のアルミフレーム(アルミ枠)である。図1に示すように、フレーム70は、4本用いられており、それぞれ太陽電池モジュール1の4辺の各々の端部に装着されている。
次に、本実施の形態に係る太陽電池モジュール1の効果について、比較例を示す図4A及び図4Bを用いて、本発明に至った経緯も含めて説明する。図4A及び図4Bは、比較例に係る太陽電池モジュールの構成を示す断面図であり、それぞれラミネート処理前(図4A)及びラミネート処理後(図4B)を示している。
以上、本発明に係る太陽電池モジュールについて、上記実施の形態に基づいて説明したが、本発明は、上記の実施の形態に限定されるものではない。
10 基板
20 バックシート
30 太陽電池セル
31 タブ配線
40 渡り配線
50、500 隠しシート
51a、510a 第1のシート層
51b、510b 第2のシート層
51c、510c 第3のシート層
52a 第1接着層
52b 第2接着層
60、600 充填部材
61 バックシート側充填部材
62 基板側充填部材
63 隠し充填部材
70 フレーム
520 接着層
Claims (9)
- 透光性を有する基板とバックシートとを有する太陽電池モジュールであって、
前記基板と前記バックシートとの間に配列された複数の太陽電池セルと、
前記複数の太陽電池セルの各々に接続されたタブ配線同士を共通に接続する渡り配線と、
前記基板側から前記渡り配線を覆うように配置された隠しシートと、
前記基板と前記バックシートとの間に充填された充填部材とを備え、
前記隠しシートは、前記充填部材に接する第1のシート層と、前記第1のシート層に積層された第2のシート層とを有し、
前記第1のシート層及び前記第2のシート層は、前記バックシート又は前記充填部材の材料と同系色の材料、透明材料又は半透明材料からなり、
前記第1のシート層は、前記充填部材に対して接着性を有する
太陽電池モジュール。 - 前記第1のシート層は、透明材料又は半透明材料からなり、
前記第2のシート層は、前記バックシート又は前記充填部材と同系色である
請求項1に記載の太陽電池モジュール。 - 前記バックシート又は前記充填部材は黒色であり、
前記第2のシート層は、黒色である
請求項2に記載の太陽電池モジュール。 - 前記隠しシートは、さらに、前記第1のシート層と前記第2のシート層とを接着させる第1接着層を有し、
前記第1接着層は、黒色である
請求項3に記載の太陽電池モジュール。 - 前記隠しシートは、さらに、前記第2のシート層に積層された第3のシート層と、前記第2のシート層と前記第3のシート層とを接着させる第2接着層とを有する
請求項4に記載の太陽電池モジュール。 - 前記第3のシート層は、前記第1のシート層と同じ材料からなる
請求項5に記載の太陽電池モジュール。 - さらに、前記隠しシートと前記基板との間に充填された基板側充填部材を備え、
前記第3のシート層は、前記基板側充填部材に接しており、かつ、前記基板側充填部材に対して接着性を有する
請求項5又は6に記載の太陽電池モジュール。 - 前記第1のシート層は、ポリエチレンからなり、
前記第2のシート層は、ポリエチレンテレフタレートからなり、
前記充填部材は、エチレンビニルアセテートからなる
請求項1~7のいずれか1項に記載の太陽電池モジュール。 - 透光性を有する基板とバックシートとを有する太陽電池モジュールの製造方法であって、
前記基板と前記バックシートとの間に、複数の太陽電池セルと、前記複数の太陽電池セルの各々に接続されたタブ配線同士を共通に接続する渡り配線と、前記基板側から前記渡り配線を覆う隠しシートと、充填部材とを配置する工程を含み、
前記隠しシートは、前記充填部材に接する第1のシート層と、前記第1のシート層に積層された第2のシート層とを有し、
前記第1のシート層及び前記第2のシート層は、前記バックシート又は前記充填部材の材料と同系色の材料、透明材料又は半透明材料からなり、
前記第1のシート層は、前記充填部材に対して接着性を有する
太陽電池モジュールの製造方法。
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| JP2016549907A JP6587191B2 (ja) | 2014-09-22 | 2015-08-20 | 太陽電池モジュール及び太陽電池モジュールの製造方法 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009246208A (ja) * | 2008-03-31 | 2009-10-22 | Kyocera Corp | 太陽電池モジュールおよびその製造方法 |
| JP2012019078A (ja) * | 2010-07-08 | 2012-01-26 | Sony Chemical & Information Device Corp | 太陽電池モジュール、太陽電池モジュールの製造方法 |
| JP2012033546A (ja) * | 2010-07-28 | 2012-02-16 | Sharp Corp | 太陽電池モジュール |
| JP2014138068A (ja) * | 2013-01-16 | 2014-07-28 | Sharp Corp | 太陽電池モジュール |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7390961B2 (en) * | 2004-06-04 | 2008-06-24 | Sunpower Corporation | Interconnection of solar cells in a solar cell module |
| US20110036390A1 (en) * | 2009-08-11 | 2011-02-17 | Miasole | Composite encapsulants containing fillers for photovoltaic modules |
| JP2011054663A (ja) * | 2009-08-31 | 2011-03-17 | Sanyo Electric Co Ltd | 太陽電池モジュール |
| CN102646740B (zh) * | 2011-02-18 | 2015-06-10 | 3M创新有限公司 | 胶带及由其制成的太阳能组件和制品 |
| CN102623533B (zh) * | 2012-03-16 | 2014-07-23 | 友达光电股份有限公司 | 可吸收紫外光波段的太阳能模块及其制作方法 |
| CN104508832A (zh) * | 2012-08-22 | 2015-04-08 | 三洋电机株式会社 | 太阳能电池组件和其制造方法 |
-
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009246208A (ja) * | 2008-03-31 | 2009-10-22 | Kyocera Corp | 太陽電池モジュールおよびその製造方法 |
| JP2012019078A (ja) * | 2010-07-08 | 2012-01-26 | Sony Chemical & Information Device Corp | 太陽電池モジュール、太陽電池モジュールの製造方法 |
| JP2012033546A (ja) * | 2010-07-28 | 2012-02-16 | Sharp Corp | 太陽電池モジュール |
| JP2014138068A (ja) * | 2013-01-16 | 2014-07-28 | Sharp Corp | 太陽電池モジュール |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021206135A1 (ja) * | 2020-04-09 | 2021-10-14 | 株式会社カネカ | 太陽電池モジュール |
| JPWO2021206135A1 (ja) * | 2020-04-09 | 2021-10-14 | ||
| JP7441937B2 (ja) | 2020-04-09 | 2024-03-01 | 株式会社カネカ | 太陽電池モジュール |
| US12199207B2 (en) | 2020-04-09 | 2025-01-14 | Kaneka Corporation | Solar cell module |
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| JP6587191B2 (ja) | 2019-10-09 |
| EP3200239B1 (en) | 2021-04-14 |
| JPWO2016047029A1 (ja) | 2017-06-29 |
| EP3200239A1 (en) | 2017-08-02 |
| EP3200239A4 (en) | 2017-09-20 |
| US20170278992A1 (en) | 2017-09-28 |
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