CN105977328B - Solar cell module - Google Patents
Solar cell module Download PDFInfo
- Publication number
- CN105977328B CN105977328B CN201610139453.1A CN201610139453A CN105977328B CN 105977328 B CN105977328 B CN 105977328B CN 201610139453 A CN201610139453 A CN 201610139453A CN 105977328 B CN105977328 B CN 105977328B
- Authority
- CN
- China
- Prior art keywords
- light
- battery cell
- solar battery
- solar
- reflecting components
- 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.)
- Active
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 79
- 239000000463 material Substances 0.000 claims description 64
- 229920005989 resin Polymers 0.000 claims description 39
- 239000011347 resin Substances 0.000 claims description 39
- 239000000853 adhesive Substances 0.000 claims description 31
- 230000001070 adhesive effect Effects 0.000 claims description 31
- 239000000178 monomer Substances 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 5
- 210000004027 cell Anatomy 0.000 description 287
- 238000009826 distribution Methods 0.000 description 36
- 230000003321 amplification Effects 0.000 description 18
- 238000003199 nucleic acid amplification method Methods 0.000 description 18
- 238000009413 insulation Methods 0.000 description 13
- 239000000758 substrate Substances 0.000 description 12
- 238000003475 lamination Methods 0.000 description 10
- 239000004065 semiconductor Substances 0.000 description 10
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 8
- 239000007767 bonding agent Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 239000012780 transparent material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 229910021417 amorphous silicon Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- -1 inscape Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 210000003850 cellular structure Anatomy 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- 240000001439 Opuntia Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical compound [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 208000007578 phototoxic dermatitis Diseases 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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
- H01L31/054—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)
- Photovoltaic Devices (AREA)
Abstract
The present invention provides a kind of solar cell module, and it can also suppress leakage current even if the light-reflecting components for configuring conductive optical reflection film and produce.The solar cell module includes：Solar battery cell (10)；Light-reflecting components (30) with least a portion positioned at the side of solar battery cell (10), light-reflecting components (30) include insulating element (31) and are formed at the positive electric conductivity optical reflection film (32) of insulating element (31), the thickness (d of light-reflecting components (30)M) than the thickness (d of solar battery cell (10)C) thick, the face of solar battery cell (10) side of electric conductivity optical reflection film (32) is located at the positive position in the outer part than solar battery cell (10).
Description
Technical field
The present invention relates to solar cell module.
Background technology
In the prior art, enter as the photoelectric conversion device for converting light energy into electric energy, the exploitation of solar cell module
Zhan Zhong.Endless sunshine can be directly changed into electricity by solar cell module, and with carrying out generating phase with fossil fuel
It is smaller than carrying capacity of environment more to clean, therefore be expected to as new energy.
Solar cell module is, for example, by multiple solar cells between front protecting part and back-protective part
The structure that monomer is sealed to form with filling component.In solar cell module, multiple solar battery cells are in a matrix form
Configuration.
In the prior art, in order to effectively utilize the sunshine in the gap being irradiated between solar battery cell, motion
There is a kind of solar cell module, the smooth surface from solar battery cell is provided with the gap between solar battery cell
Protrude and relative to the inclined light-reflecting components of smooth surface (such as patent document 1).
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2013-98496 publications
The content of the invention
The invention problem to be solved
In the case where light-reflecting components have the electric conductivity optical reflection film such as metal film, if between solar battery cell
Gap configuration light-reflecting components, then exist and leakage current produced between the solar battery cell by electric conductivity optical reflection film
The problem of.
The present invention completes to solve such problem, even if will be conductive its object is to provide one kind
The light-reflecting components configuration of optical reflection film can also suppress solar cell caused by leakage current between solar battery cell
Component.
For solving the method for problem
To achieve these goals, a mode of solar cell module of the invention, including：1st solar cell
Monomer；Light-reflecting components with least a portion positioned at the side of above-mentioned 1st solar battery cell, above-mentioned light-reflecting components tool
There is insulating element and be formed at the positive electric conductivity optical reflection film of above-mentioned insulating element, in the thickness ratio of above-mentioned light-reflecting components
It is thick to state the thickness of the 1st solar battery cell, the face of the above-mentioned 1st solar battery cell side of above-mentioned electric conductivity optical reflection film
Positioned at the position of the front than above-mentioned 1st solar battery cell in the outer part.
The effect of invention
It can also suppress between solar battery cell even if the light-reflecting components of conductive optical reflection film are configured
Solar cell module caused by leakage current.
Brief description of the drawings
Figure 1A is the top view of the solar cell module of embodiment 1.
Figure 1B is the sectional view of the solar cell module of the embodiment 1 of Figure 1A IB-IB lines.
Fig. 2A is the close-up top view of the solar cell module of embodiment 1.
Fig. 2 B are sectional view (the light-reflecting components weeks of the solar cell module of the embodiment 1 of Fig. 2A IIB-IIB lines
The amplification sectional view on side).
Fig. 3 is the close-up sectional view of the solar cell module of comparative example.
Fig. 4 is the close-up sectional view of the solar cell module of the variation of embodiment 1.
Fig. 5 A are the amplification sectional views on the light-reflecting components periphery of the solar cell module of embodiment 2.
Fig. 5 B are the amplification sectional views on the light-reflecting components periphery of the solar cell module of embodiment 2.
Fig. 6 is the close-up sectional view of the solar cell module of the variation of embodiment 2.
Fig. 7 is the amplification sectional view on the light-reflecting components periphery of the solar cell module of embodiment 3.
Fig. 8 is the close-up sectional view of the solar cell module of the variation of embodiment 3.
Fig. 9 is the amplification sectional view on the light-reflecting components periphery of the solar cell module of embodiment 4.
Figure 10 is the amplification sectional view on the light-reflecting components periphery of the solar cell module of the variation 1 of embodiment 4.
Figure 11 A are the amplification sections on the light-reflecting components periphery of the solar cell module of the embodiment 4 shown in Fig. 9
Figure.
Figure 11 B are the light-reflecting components peripheries in the solar cell module of the variation 1 of the embodiment 4 shown in Figure 10
Amplification sectional view.
Figure 12 A are that the part of the another way of the solar cell module of the variation 1 of the embodiment 4 shown in Figure 10 is put
Heavy in section figure.
Figure 12 B are a parts for the another way of the solar cell module of the variation 1 of the embodiment 4 shown in Figure 10
Amplify back view.
Figure 13 is the close-up sectional view of the solar cell module of the variation 2 of embodiment 3.
Figure 14 is the close-up sectional view of the solar cell module of the variation 3 of embodiment 3.
Figure 15 is the close-up sectional view of the solar cell module of variation 1.
Figure 16 is the part amplification plan view of the solar cell module of variation 2.
Figure 17 is the part amplification plan view of the solar cell module of variation 3.
Figure 18 is the close-up sectional view of the solar cell module of variation 4.
Embodiment
Hereinafter, embodiments of the present invention are illustrated referring to the drawings.Embodiments described below all represents this hair
A bright preferable specific example.Therefore, the numerical value shown in following embodiment, shape, material, inscape, composition
The allocation position and connected mode and process of key element and the order of process etc. are only an examples, are not intended to limit this hair
It is bright.Accordingly, for the rights to independence that the upper concept for representing of the invention is not documented in the inscape of implementation below
Inscape in profit requirement, arbitrary inscape can be used as to illustrate.
In addition, each figure is schematic diagram, not closely illustrated.In addition, in the various figures, for substantially the same knot
Structure marks identical symbol, and omits substantially or simplify the explanation repeated.
(embodiment 1)
[structure of solar cell module]
First, the schematic configuration of the solar cell module 1 of embodiment 1 is illustrated using Figure 1A and Figure 1B.Figure
1A is the top view of the solar cell module of embodiment 1.Figure 1B is the solar energy of the embodiment 1 of Figure 1A IB-IB lines
The sectional view of battery component.
In addition, in Figure 1A and Figure 1B, Z axis is the axle vertical with the interarea of solar cell module 1, and X-axis and Y-axis are those
This orthogonal and all orthogonal to Z-axis axle.Z axis, X-axis and Y-axis are similarly such in following figure.
As shown in FIG. 1A and 1B, solar cell module 1 includes multiple solar battery cells 10, leader (tab) is matched somebody with somebody
Line 20, light-reflecting components 30, front protecting part 40, back-protective part 50, filling component 60 and framework 70.Solar cell
Component 1 is to seal multiple solar cell lists with filling component 60 between front protecting part 40 and back-protective part 50
The structure of body 10.
As shown in Figure 1A, shape when solar cell module 1 is overlooked is for example in the form of a substantially rectangular.
As one, the lateral length of solar cell module 1 is about 1600mm, longitudinal length be about 800mm substantially
Rectangle.In addition, the shape of solar cell module 1 is not limited to rectangle.
Hereinafter, each component parts progress of reference picture 1A and Figure 1B and use Fig. 2A and Fig. 2 B to solar cell module 1
Describe in detail.Fig. 2A is by the region X of Figure 1A dotted line enlarged drawing, is the solar cell module of embodiment 1
Part amplification plan view.Fig. 2 B are the sectional views of the solar cell module of the embodiment 1 of Fig. 2A IIB-IIB lines.Separately
Outside, Fig. 2 B are the amplification sectional views on the periphery of light-reflecting components 30.
[solar battery cell (solar cell device)]
Solar battery cell 10 is the photo-electric conversion element (photovoltaic element) that the light such as sunshine are converted into electric power.Such as figure
Shown in 1A, solar battery cell 10 is arranged with multiple in approximately the same plane in matrix (matrix) shape.
In the multiple solar battery cells 10 linearly arranged along a direction in line direction and column direction,
2 adjacent solar battery cells 10 are linked by leader distribution 20 and form battery strings (cell string) each other.It is multiple too
Positive energy battery cell 10 by leader distribution 20 by being electrically connected to turn into battery strings.Multiple solar-electricities in 1 battery strings 10S
Pond monomer 10 is connected in series by leader distribution 20.
As shown in Figure 1A, in the present embodiment, 12 solar energy equally spaced arranged along line direction (X-direction)
Battery cell 10 is connected by leader distribution 20, forms 1 battery strings 10S.More specifically, each battery strings 10S is by the side of being expert at
2 adjacent solar battery cells 10 are linked by 3 leader distributions 20 and formed successively on to (X-direction), will be along
The solar battery cell 10 that one row of line direction arrangement are all links up.
Battery strings 10S is formed with multiple.Multiple battery strings 10S (strings) are along another in line direction and column direction
Individual direction arrangement.In the present embodiment, formed with 6 battery strings 10S.As shown in Figure 1A, 6 battery strings 10S to put down each other
Capable mode equally spaced arranges along column direction (Y direction).
In addition, the solar battery cell 10 foremost in each battery strings 10S is via leader distribution 20 and connection wiring
Connection (not shown).In addition, the solar battery cell 10 of the most end in each battery strings 10S via leader distribution 20 with being connected
Distribution connection (not shown).Thus, multiple (in Figure 1A 6) battery strings 10S are connected in series or are connected in parallel, and form monolithic array
(cell array).In the present embodiment, 2 adjacent battery strings 10S, which are connected in series, forms 1 series connection (24
Solar battery cell 10 is connected in series), 3 series connections are connected in parallel.
As shown in Figure 1A and Fig. 2A, in multiple solar battery cells 10, on line direction and column direction with it is adjacent too
Positive energy battery cell 10 is spaced apart gap configuration.As described later, light-reflecting components 30 are configured with the gap.
In the present embodiment, it is substantially rectangular when solar battery cell 10 is overlooked.Specifically, solar cell list
Body 10 is the shape of the square unfilled corner of 125mm square.That is, 1 battery strings 10S is configured to 2 adjacent solar cells
The a line of monomer 10 is relative to each other.In addition, the shape of solar battery cell 10 be not limited to it is substantially rectangular.
Solar battery cell 10 becomes basic structure with semiconductor pin, as an example, by being sequentially formed in conduct
The n-type monocrystalline silicon substrate of the semiconductor substrate of n-type and interarea side (face side), the i type amorphous of a side of n-type monocrystalline silicon substrate
Silicon layer, n-type amorphous silicon layer and n side surfaces electrode and be sequentially formed in n-type monocrystalline silicon substrate the opposing party the interarea side (back side
Side), i types amorphous silicon layer, p-type amorphous silicon layer and p side surfaces electrode form.N side surfaces electrode and p side surfaces electrode are, for example,
The transparency electrodes such as ITO (Indium Tin Oxide).In addition, the solar cell module 1 of present embodiment is one side light side
Formula, so p side surfaces electrode need not be transparent, such as can be with reflexive metal electrode.
As shown in fig. ib and fig. 2b, in solar battery cell 10, formed with the n side surfaces with solar battery cell 10
The positive side colelctor electrode 11 (n sides colelctor electrode) of electrode electrical connection and electrically connect with the p side surfaces electrode of solar battery cell 10
Dorsal part colelctor electrode 12 (p sides colelctor electrode).
Positive side colelctor electrode 11 and dorsal part colelctor electrode 12 are respectively by for example with orthogonal with the extended direction of leader distribution 20
Multiple secondary grid line (finger) electrodes for linearly being formed of mode and be connected with these secondary gate line electrodes and along with
Multiple main gate lines that the orthogonal direction of secondary gate line electrode (the extended direction of leader distribution 20) is linearly formed
(busbar) electrode is formed.The number of main grid line electrode is for example identical with leader distribution 20, is 3 in the present embodiment.Separately
Outside, positive side colelctor electrode 11 and dorsal part colelctor electrode 12 are mutually the same shape, but not limited to this.
Positive side colelctor electrode 11 and dorsal part colelctor electrode 12 are made up of low resistance conductive materials such as silver-colored (Ag).Such as positive side colelctor electrode
11 and dorsal part colelctor electrode 12 can be by the way that the conductive paste (silver paste of the electroconductive stuffings such as silver will be dispersed with adhesive resin
Deng) silk-screen printing is carried out with defined pattern on the n side surfaces electrode and p side surfaces electrode formed.
In the solar battery cell 10 so formed, positive both (n sides) and the back side (p sides) are light
Face.When light incides solar battery cell 10, carrier is produced in the photoelectric conversion part of solar battery cell 10.It is caused
Carrier is diffused into n side surfaces electrode and p side surfaces electrode as photoelectric current, is received by positive side colelctor electrode 11 and dorsal part colelctor electrode 12
Collect and be flowed into leader distribution 20.So, can be efficiently by by too by setting positive side colelctor electrode 11 and dorsal part colelctor electrode 12
Carrier caused by positive energy battery cell 10 is fetched into external circuit.
[leader distribution]
As shown in FIG. 1A and 1B, leader distribution 20 (internal connector) in battery strings 10S by 2 adjacent solar energy
Battery cell 10 is electrically connected to each other.As shown in figs. la and 2, in the present embodiment, 2 adjacent solar battery cells 10
Connected by the 3 leader distributions 20 configured generally parallel to each other.2 solar cell lists of each leader distribution 20 along connection
The orientation of body 10 is extended.
Leader distribution 20 is the conductive wires of strip, e.g. the metal foil of ribbon (ribbon) shape.Leader distribution
20 such as can as by covered with scolding tin or silver copper foil, the metal foil such as silver foil whole surface obtained from structure to provide
Length block and made for rectangle.
As shown in Figure 1B, 2 adjacent solar-electricities are configured at for each leader distribution 20, the one end of leader distribution 20
The front of a solar battery cell 10 in pond monomer 10, the other end of leader distribution 20 are configured at adjacent 2 too
The back side of another solar battery cell 10 in positive energy battery cell 10.
Each leader distribution 20 is in 2 adjacent solar battery cells 10, by the n sides of a solar battery cell 10
The p sides colelctor electrode (colelctor electrode of rear side) of colelctor electrode (colelctor electrode of face side) and another solar battery cell 10 is electrically connected
Connect.Specifically, the main grid line electrode of leader distribution 20 and the positive side colelctor electrode 11 of a solar battery cell 10 and another
The main grid line electrode bonding of the dorsal part colelctor electrode 12 of individual solar battery cell 10.Leader distribution 20 and the (back of the body of positive side colelctor electrode 11
Side colelctor electrode 12) for example it is thermally compressed by the way that conductive adhesive is clipped in the middle to be bonded.
In addition, leader distribution 20 and positive side colelctor electrode 11 (dorsal part colelctor electrode 12) can not utilize conductive adhesive and sharp
Engaged with solder.
Furthermore it is possible to the front of leader distribution 20 is provided with bumps.It is concavo-convex by being set in the front of leader distribution 20,
When inciding the light of solar cell module 1 and inciding the front of leader distribution 20, bumps can be utilized to make the light scattering, make it
Reflect at the interface or front protecting part 40 of front protecting part 40 and air layer and the interface of filling component 60, thus guide
To solar battery cell 10.Thereby, it is possible to make to also contribute to effectively generate electricity by the light of the head-on reflection of leader distribution 20, too
The generating efficiency of positive energy battery component 1 improves.
As such leader distribution 20, it can use and the surface shape of the irregular copper foil of tool is being formed as front shape
The part of Cheng Youyin evaporation film.In addition, the front of leader distribution 20 can not be concaveconvex shape and be tabular surface.In addition, remove
It is that outside flat leader distribution, the light-reflecting components that front is concaveconvex shape can be laminated in addition in front.
[light-reflecting components]
As shown in Figure 1A, Fig. 2A and Fig. 2 B, solar battery cell 10 is provided with light-reflecting components 30.Light-reflecting components
30 at least a portion is located at the side of solar battery cell 10.As shown in Figure 2 B, in present embodiment, light-reflecting components 30
It is arranged on adjacent 2 solar battery cell 10 (the 1st solar battery cell 10A and the 2nd solar energy for separating gap configuration
Battery cell 10B) between.
In addition, as shown in Figure 1A, along battery in gap of the light-reflecting components 30 between 2 adjacent battery strings 10S
String 10S length direction is provided with multiple.Specifically, light-reflecting components 30 are pressed each for battery strings 10S gap
Gap setting between two solar battery cells 10.
As shown in Figure 2 A, each light-reflecting components 30 are band (tape) shapes extended on battery strings 10S length direction
Light-reflecting sheet, it is elongated rectangular shape and laminal as one.Such as length of light-reflecting components 30 is 100mm~130mm, wide
Degree is 1mm~20mm.
Each light-reflecting components 30 cover the gap between 2 adjacent solar battery cells 10.That is, light-reflecting components 30
Width it is identical with the interval in the gap of 2 adjacent solar battery cells 10.In addition, the width of light-reflecting components 30 is unlimited
In this, such as can be smaller than the interval in the gap of 2 adjacent solar battery cells 10.
Incide the light reflection of light-reflecting components 30.The light-reflecting components 30 of present embodiment make incidence light diffusion and it is anti-
Penetrate, so being played a role as light scattered reflection part.That is, light-reflecting components 30 are light diffusion reflection sheets.
As shown in Figure 2 B, light-reflecting components 30 include：The insulating element 31 formed by insulating materials；Be formed at insulation division
The positive electric conductivity optical reflection film 32 of part 31.That is, light-reflecting components 30 are insulating element 31 and electric conductivity optical reflection film 32
Stepped construction.
Insulating element 31 is such as the insulative resin material structure as polyethylene terephthalate (PET) or acrylate
Into.In addition, electric conductivity optical reflection film 32 is, for example, the metallic reflective coating being made up of metals such as aluminium or silver.In present embodiment, lead
Electrical optical reflection film 32 is aluminium-vapour deposition film.
In addition, in the front of insulating element 31 formed with concavo-convex 30a.The electric conductivity optical reflection film 32 being made up of metal film
The surface of the concavo-convex 30a is such as formed at by evaporation.Therefore, it is recessed to imitate (being based on) for the front shape of electric conductivity optical reflection film 32
Convex 30a concaveconvex shape and turn into concaveconvex shape.Using the concaveconvex shape of the electric conductivity optical reflection film 32, can make to incide light
The light of reflection part 30 is to defined direction scattered reflection.
Height between concavo-convex 30a such as recesses (valley) and convex portion (valley) is less than more than 5 μm 100 μm, adjacent convex
The interval (spacing) in portion is less than more than 20 μm 400 μm.
In the present embodiment, the height between recess and convex portion is 12 μm, and the interval (spacing) of adjacent projection is 40 μm.
In addition, in the present embodiment, light-reflecting components 30 are with the front and front protecting portion of electric conductivity optical reflection film 32
The relative mode of part 40 configures.That is, light-reflecting components 30 are configured to insulating element 31 and are located at the side of back-protective part 50 and conduction
The face (back side) of the side of solar battery cell 10 of property optical reflection film 32 is located at the side of front protecting part 40.In addition, in this implementation
In mode, because electric conductivity optical reflection film 32 is located at the side of front protecting part 40, the material of insulating element 31 can be transparent
Any of non-light transmittance material such as the translucent materials such as material and white material or black material.
As described above, by the gap setting light-reflecting components 30 between 2 adjacent solar battery cells 10,
When inciding the light of solar cell module 1 and inciding the front of light-reflecting components 30, because of the bumps of electric conductivity optical reflection film 32
Shape and make the light scattered reflection (scattering).The light of the scattered reflection is at the interface or front of front protecting part 40 and air layer
The interface of guard block 40 and filling component 60 is reflected, and is directed to solar battery cell 10.Thus, make to incide as failure
Region (is the region in the gap between 2 adjacent battery strings 10S in the present embodiment, is that can not make incident light to hair
The region that electricity is made contributions) adjacent 2 solar battery cell 10 between the light in region in gap also can be effectively
Generating is made contributions, so improving the generating efficiency of solar cell module 1.
Particularly, in the present embodiment, light-reflecting components 30 are not provided with back-protective part 50 etc., but are set
Generating failed areas in the end of solar battery cell 10.Thereby, it is possible to improve productivity ratio, and can efficiently utilize
The generating capacity of solar battery cell 10.
In addition, shown in Fig. 2 B, the thickness d of light-reflecting components 30MThan the thickness d of solar battery cell 10CThickness (dM>dC)。
In the present embodiment, the thickness d of light-reflecting components 30MIt is the thickness and electric conductivity optical reflection film 32 for including insulating element 31
The overall thickness of thickness.
Also, the electric conductivity optical reflection film 32 of light-reflecting components 30 be located at than solar battery cell 10 front in the outer part
Position.Specifically, light-reflecting components 30 are configured to leave the side of solar battery cell 10 in electric conductivity optical reflection film 32
Upwards positioned at the position than positive side colelctor electrode 11 in the outer part.Therefore, when setting the concavo-convex height of electric conductivity optical reflection film 32 as dX
When, dM-dX>dC。
In the present embodiment, the thickness d of solar battery cell 10CFor 200 μm or so.In addition, electric conductivity light reflects
The concavo-convex height of film 32 is less than 100 μm more than 5 μm.In this case, electric conductivity is subtracted from the thickness of light-reflecting components 30
It is worth (d obtained by the concavo-convex height of optical reflection film 32M-dX) as long as it is more than 200 μm, for example, 250 μm~500 μm m.
In addition, the thickness d of light-reflecting components 30MIt is preferred that than by the thickness d of solar battery cell 10CIt is anti-with electric conductivity light
Penetrate the concavo-convex height d of film 32XIt is worth obtained by addition thick more than 55 μm.
Also, as shown in Figure 2 B, preferably as by the 1st solar battery cell 10A and electric conductivity optical reflection film 32 away from
Distance (d1+d2) is added obtained by being added from d1 and the 2nd solar battery cell 10B with the distance d2 of electric conductivity optical reflection film 32
More than 110 μm.
The light-reflecting components 30 so formed are filled part 60 and sealed.That is, light-reflecting components 30 are glued by filling component 60
Connect fixation.
In addition, in the present embodiment, the shape of the concavo-convex 30a in light-reflecting components 30 is employed along light-reflecting components
The triangular groove shape of 30 length direction, but this is not limited to, can be circular cone as long as the shape of light scattering can be made
Shape, quadrangle cone shape or more pyramid shapes or be combination of above-mentioned shape etc..
[front protecting part, back-protective part]
Front protecting part 40 (the 1st guard block) is the part in the face for the positive side for protecting solar cell module 1, is protected
The inside (solar battery cell 10 etc.) of solar cell module 1 is from the influence of the external environment conditions such as wind and rain or external impact.
As shown in Figure 1B, front protecting part 40 configures the face side (n sides) in solar battery cell 10, protects solar cell list
The smooth surface of the positive side of body 10.
Front protecting part 40 is passed through saturating by the light for making to be used in solar battery cell 10 wavelength band of opto-electronic conversion
Photosensitiveness part is formed.Front protecting part 40 be, for example, be made up of transparent glass material glass substrate (transparent glass substrate),
Or the resin substrate that membranaceous, tabular the hard resin material with translucency and water-resisting property is formed.
On the other hand, back-protective part 50 (the 2nd guard block) is the face for the dorsal part for protecting solar cell module 1
Part, the inside of protection solar cell module 1 exempt to be affected by.As shown in Figure 1B, back-protective part 50 is matched somebody with somebody
Put the rear side (p sides) in solar battery cell 10.
Back-protective part 50 is, for example, by polyethylene terephthalate (PET) or PEN
Etc. (PEN) membranaceous or tabular the resin sheet that resin material is formed.
The solar cell module 1 of present embodiment is one side light mode, so back-protective part 50 can use
Lighttight plate body or film.In this case, as back-protective part 50, for example, can use dark features or
Inside has the light tight parts (light-proofness part) such as the stacked films such as the resin films of metal foil such as aluminium foil.In addition, back-protective portion
Part 50 is not limited to light tight part, can be the light transparent members such as sheet glass or the glass substrate being made up of glass material.
Filling component 60 is filled between front protecting part 40 and back-protective part 50.Front protecting part 40 and
Back-protective part 50 is adhesively fixed with solar battery cell 10 by the filling component 60.
[filling component]
Filling component (packing material) 60 is configured between front protecting part 40 and back-protective part 50.In this implementation
In mode, filling component 60 is filled in a manner of full of between front protecting part 40 and back-protective part 50.
As shown in Figure 2 B, filling component 60 is made up of face side filling component 61 and rear side filling component 62.It is multiple too
Positive energy battery cell 10 is for example by the state clipped by the face side filling component 61 and rear side filling component 62 of sheet
It is lower to carry out lamination treatment (lamination process) and entirety is covered by filling component 60.
Specifically, multiple solar battery cells 10 are linked with leader distribution 20 and after forming battery strings 10S,
Multiple battery strings 10S are clipped in the middle with face side filling component 61 and rear side filling component 62, then configured up and down at it
Front protecting part 40 and back-protective part 50, such as be thermally compressed in a vacuum with more than 100 DEG C of temperature.By this
Thermo-compression bonding, face side filling component 61 and rear side filling component 62 are heated melting, turn into that solar battery cell 10 is close
The filling component 60 of envelope.
Face side filling component 61 is, for example, the resin being made up of resin materials such as ethylene vinyl acetate copolymers (EVA)
Piece, configure between multiple solar battery cells 10 and front protecting part 40.Face side filling component passes through lamination treatment
It is filled in a manner of mainly filling the gap between solar battery cell 10 and front protecting part 40.For example, face side
Filling component 61 is transparent resin sheet.As one, face side filling component 61 be made up of PUR class bonding agent it is saturating
Bright resin sheet, the PUR class bonding agent are made up of EVA.
Rear side filling component 62 is, for example, the resin being made up of resin materials such as ethylene vinyl acetate copolymers (EVA)
Piece, configure between multiple solar battery cells 10 and back-protective part 50.Rear side filling component 62 by lamination at
Reason is filled in a manner of mainly filling the gap between solar battery cell 10 and back-protective part 50.In addition, this reality
The solar cell module 1 for applying mode is one side light mode, so black or the resin sheet of white can be used as the back side
Side filling component 62, but not limited to this.As one, rear side filling component 62 is the white being made up of PUR class bonding agent
Resin sheet, the PUR class bonding agent are made up of EVA.
[framework]
Framework 70 is the housing for the peripheral ends for covering solar cell module 1.Framework 70 is, for example, the aluminium chassis of aluminum
(aluminium frame).As shown in Figure 1A, using 4 frameworks 70, when being separately mounted to 4 of solar cell module 1 each in.Framework
70 are for example fixed on each side of solar cell module 1 with bonding agent.
In addition, though it is not shown, but be provided with solar cell module 1 and produced for taking out by solar battery cell 10
The terminal box (terminal box) of raw electric power.Terminal box is for example fixed on back-protective part 50.Installation is built-in with terminal box
In multiple circuit blocks of circuit substrate.
[effect etc.]
Then, with the solar cell module 1 of the solar cell module 1A comparative descriptions present embodiments of comparative example
Effect.Fig. 3 is the close-up sectional view of the solar cell module of comparative example.
As shown in figure 3, the solar cell module 1A of comparative example, same with the solar cell module 1 of present embodiment,
Gap configuration between 2 adjacent solar battery cells 10 has light-reflecting components 30.
But the solar cell module 1A of comparative example is different from the solar cell module 1 of present embodiment, light reflection
The thickness of thin of the thickness ratio solar battery cell 10 of part 30.Therefore, in the solar cell module 1A of comparative example, exist
The situation of leakage current is produced between solar battery cell 10 by the electric conductivity optical reflection film 32 of light-reflecting components 30.
Particularly, solar battery cell 10 is made up of semi-conducting material, is had in the side of solar battery cell 10
Semi-conducting material be present in portion.In this case, when light-reflecting components 30 thickness ratio solar battery cell 10 thickness
When spending thin, leakage current is produced between solar battery cell 10 by the electric conductivity optical reflection film 32 of light-reflecting components 30.
In contrast, as shown in Figure 2 B, in the solar cell module 1 of present embodiment, light-reflecting components 30
Thickness dMThan the thickness d of solar battery cell 10CThickness, and the side of solar battery cell 10 of electric conductivity optical reflection film 32
Face be located at than solar battery cell 10 front in the outer part (side of front protecting part 40).
Thereby, it is possible to the front that the electric conductivity optical reflection film 32 for making light-reflecting components 30 leaves solar battery cell 10,
So it can effectively suppress the generation of leakage current.As a result, the reliability of solar cell module 1 improves.
In addition, in the present embodiment, light-reflecting components 30 are configured to the front of electric conductivity optical reflection film 32 and front is protected
Protect that part 40 is relative, but can also be as shown in figure 4, light-reflecting components 30 are configured to the front and the back side of electric conductivity optical reflection film 32
Guard block 50 is relative.
That is, light-reflecting components 30 can be configured to insulating element 31 and be located at the side of front protecting part 40 and electric conductivity light to reflect
Film 32 is located at the side of back-protective part 50.In this case, the thickness of the thickness ratio solar battery cell 10 of light-reflecting components 30
Degree is thick, and the face of the side of solar battery cell 10 of electric conductivity optical reflection film 32 is leaned on positioned at the front than solar battery cell 10
Outside (side of back-protective part 50), so the generation of leakage current can be suppressed.
Additionally, it is preferred that the thickness d of light-reflecting components 30MThan by the thickness d of solar battery cell 10CIt is anti-with electric conductivity light
Penetrate the concavo-convex height d of film 32XIt is worth obtained by addition thick more than 55 μm.
From the viewpoint of the further reliability for ensuring solar cell module 1, it is desirable to adjacent solar cell list
Body 10 for example has resistance to pressure relative to the application of 800V pulse voltage each other.It is preferably adjacent in order to the resistance to pressure
Insulation distance between solar battery cell 10 ensures more than 110 μm.That is, the thickness d of light-reflecting components 30 is madeMThan by solar energy
The thickness d of battery cell 10CWith the concavo-convex height d of electric conductivity optical reflection film 32XIt is worth more than 55 μm of thickness obtained by addition, thus
It is able to ensure that the insulation distance between adjacent solar battery cell 10 more than 110 μm.Accordingly, for above-mentioned pulse voltage
Apply, also can effectively suppress the generation of the leakage current caused by insulation breakdown.As a result, solar cell module 1
Reliability further improve.
Also, as shown in Figure 2 B, preferably as by the 1st solar battery cell 10A and electric conductivity optical reflection film 32 away from
Distance (d1+d2) is added obtained by being added from d1 and the 2nd solar battery cell 10B with the distance d2 of electric conductivity optical reflection film 32
More than 110 μm.Thus, the insulation distance quilt between the 1st solar battery cell 10A and the 2nd solar battery cell 10B can
Ensure by ground more than 110 μm, so the application for above-mentioned pulse voltage, also can effectively suppress because insulation breakdown causes
Leakage current generation.
In addition, in the light-reflecting components 30 shown in Fig. 4, the overleaf conductive optical reflection film in the side of guard block 50
32, so insulating element 31 can be made up of the light transparent member of transparent component etc..
(embodiment 2)
Then, the solar cell module 2 of embodiment 2 is illustrated using Fig. 5 A and Fig. 5 B.Fig. 5 A and Fig. 5 B are to implement
The amplification sectional view on the light-reflecting components periphery of the solar cell module of mode 2.
As shown in Figure 5A, in the solar cell module 2 of present embodiment, light-reflecting components 30 are arranged to project to phase
Gap between 2 adjacent solar battery cells 10 and overlapping with the end of solar battery cell 10.
In the present embodiment, light-reflecting components 30 are configured to across 2 adjacent (the 1st sun of solar battery cell 10
Energy battery cell 10A and the 2nd solar battery cell 10B).Specifically, an end of the width of light-reflecting components 30
Portion is arranged at the 1st solar battery cell 10A end in a manner of overlapping with the 1st solar battery cell 10A.In addition, light
The end of the width of reflection part 30 is arranged at the 2nd solar-electricity in a manner of overlapping with the 2nd solar battery cell 10B
Pond monomer 10B end.
In the present embodiment, thickness of the thickness of light-reflecting components 30 also than solar battery cell 10 is thick.
Thus, as shown in Figure 5 B, in manufacturing process of solar cell module 2 etc. light-reflecting components 30 width
One end in direction is from the case that solar battery cell 10 comes off, the electric conductivity light of the light-reflecting components 30 for the part that comes off
Reflectance coating 32 also be located at than solar battery cell 10 front in the outer part (side of back-protective part 50).It is anti-to additionally, there are light
The overall of part 30 is penetrated to come off as the situation of the state as Fig. 2 B, even in the situation from solar battery cell 10
Under, the electric conductivity optical reflection films 32 of light-reflecting components 30 also be located at than solar battery cell 10 front in the outer part.
As described above, according to the solar cell module 2 of present embodiment, even in light-reflecting components 30 from solar-electricity
In the case that pond monomer 10 comes off, the electric conductivity optical reflection film 32 of the light-reflecting components 30 for the part that can also make to come off leaves the sun
The front of energy battery cell 10.Therefore, it is possible to avoid the generation of leakage current, so the reliability of solar cell module 2 carries
It is high.
In addition, in the present embodiment, light-reflecting components 30 are configured to the front of electric conductivity optical reflection film 32 and front is protected
It is relative to protect part 40, but as shown in fig. 6, light-reflecting components 30 can be configured to the front and the back side of electric conductivity optical reflection film 32
Guard block 50 is relative.
Even in this case, thickness of the thickness also than solar battery cell 10 of light-reflecting components 30 is thick, and it is conductive
Property optical reflection film 32 the side of solar battery cell 10 face be located at than solar battery cell 10 front in the outer part.Thus,
Even if light-reflecting components 30 come off from solar battery cell 10, it can also suppress the generation of leakage current.
In addition, the configuration mode of the light-reflecting components 30 shown in Fig. 5 A, Fig. 5 B and Fig. 6, it is also preferred that as by the 1st solar energy
Battery cell 10A and electric conductivity optical reflection film 32 distance d1 and the 2nd solar battery cell 10B and electric conductivity optical reflection film 32
Distance d2 be added obtained by be worth addition distance (d1+d2) more than 110 μm.
Thus, the insulation distance between the 1st solar battery cell 10A and the 2nd solar battery cell 10B is reliably true
Protect more than 110 μm, so the application of the pulse voltage even for 800V, also also can effectively suppress broken because insulating
The generation of leakage current caused by bad.
In addition, the light-reflecting components 30 shown in Fig. 5 A and Fig. 5 B, in the conductive light reflection in the side of front protecting part 40
Film 32, so the material of insulating element 31 can be the translucent materials and white material or black material etc. such as transparent material
Any of non-light transmittance material, but the light-reflecting components 30A shown in Fig. 6, overleaf the side of guard block 50 is with conduction
Property optical reflection film 32, so the material of insulating element 31 is preferably the translucent materials such as transparent material.
(embodiment 3)
Then, the solar cell module 3 of embodiment 3 is illustrated using Fig. 7.Fig. 7 is the solar cell of embodiment 3
The amplification sectional view on the light-reflecting components periphery of component.
As shown in fig. 7, the solar cell module 3 of present embodiment, in the solar cell module of above-mentioned embodiment 1
In 1, insulating element 31 uses resin base material 31a and adhesive linkage 31b stepped construction, also, bonding with resin base material 31a
The face of layer 31b sides opposite side forms conductive optical reflection film 32.
That is, in present embodiment, light-reflecting components 30A is the structure for being assigned adhesive linkage 31b in advance.Specifically, light
Reflection part 30A includes resin base material 31a, the electric conductivity optical reflection film 32 in a face for being formed at resin base material 31a and setting
In the adhesive linkage 31b in resin base material 31a another face.
Resin base material 31a is formed such as the insulative resin material by PET or acrylate.In addition, adhesive linkage 31b is
The resin adhesive formed by the insulative resin material such as EVA.In the present embodiment, resin base material 31a is PET sheet, bonding
Layer 31b is by the EVA sensible heat bonding agents formed or pressure-sensitive bonding agent.In addition, in resin base material 31a front formed with bumps
30a.Thus, the front of electric conductivity optical reflection film 32 is concaveconvex shape.
Also it is same with embodiment 1 in the present embodiment, light-reflecting components 30A thickness ratio solar battery cell 10
Thickness it is thick, and the face of the side of solar battery cell 10 of electric conductivity optical reflection film 32 is positioned at than solar battery cell 10 just
Face is in the outer part (side of front protecting part 40).
Thereby, it is possible to the front that the electric conductivity optical reflection film 32 for making light-reflecting components 30A leaves solar battery cell 10,
So it can effectively suppress the generation of leakage current.As a result, the reliability of solar cell module 1 improves.
Also, in the present embodiment, light-reflecting components 30A has adhesive linkage 31b, so can be by light-reflecting components
30A is easily configured in defined position.
In addition, in the present embodiment, light-reflecting components 30A is configured to the front of electric conductivity optical reflection film 32 and front is protected
Protect part 40 relatively, but as shown in figure 8, light-reflecting components 30A is configured to the front of electric conductivity optical reflection film 32 and the back side is protected
It is relative to protect part 50.In this case, thickness of the light-reflecting components 30A thickness also than solar battery cell 10 is thick, and leads
The face of the side of solar battery cell 10 of electrical optical reflection film 32 is located at the positive (back side in the outer part than solar battery cell 10
The side of guard block 50), so the generation of leakage current can be suppressed.
In addition, the thickness d of the light-reflecting components 30A shown in Fig. 7 and Fig. 8MIt is preferred that than by the thick of solar battery cell 10
Spend dCWith the concavo-convex height d of electric conductivity optical reflection film 32XIt is worth obtained by addition thick more than 55 μm.Thereby, it is possible to make it is adjacent too
Insulation distance between positive energy battery cell 10 ensures more than 110 μm.Thus, even for 800V pulse voltage application,
The generation of the leakage current caused by insulation breakdown can effectively be suppressed.
Also, as by the distance d1 and the 2nd solar energy of the 1st solar battery cell 10A and electric conductivity optical reflection film 32
Battery cell 10B be added with the distance d2 of electric conductivity optical reflection film 32 obtained by be worth addition distance (d1+d2) preferably at 110 μm
More than.Thus, the insulation distance between the 1st solar battery cell 10A and the 2nd solar battery cell 10B is by reliably true
Protect more than 110 μm, so the application for above-mentioned pulse voltage, also can effectively suppress to sew caused by insulation breakdown
The generation of electric current.
In addition, the light-reflecting components 30A shown in Fig. 7 is in the conductive optical reflection film 32 in the side of front protecting part 40, institute
Can be the translucent materials such as transparent material and white material or black material with resin base material 31a and adhesive linkage 31b material
Any of the non-light transmittance materials such as material, but overleaf the side of guard block 50 has and led the light-reflecting components 30A shown in Fig. 8
Electrical optical reflection film 32, so resin base material 31a and adhesive linkage 31b material are preferably the translucent materials such as transparent material.
(embodiment 4)
Then, the solar cell module 4 of embodiment 4 is illustrated using Fig. 9.Fig. 9 is the solar-electricity of embodiment 4
The amplification sectional view on the light-reflecting components periphery of pond component.
As shown in figure 9, the solar cell module 4 of present embodiment, in the solar cell module of above-mentioned embodiment 2
In 2, insulating element 31 uses resin base material 31a and adhesive linkage 31b stepped construction, also, bonding with resin base material 31a
The face of layer 31b sides opposite side forms electric conductivity optical reflection film 32.
I.e., in the present embodiment, light-reflecting components 30A, it is same with embodiment 3, including resin base material 31a, formation
In a resin base material 31a face electric conductivity optical reflection film 32 and be arranged at resin base material 31a another face adhesive linkage
31b.In addition, resin base material 31a and adhesive linkage 31b material, construction and embodiment 3 are same.
Also it is same with above-mentioned embodiment 2 in the present embodiment, light-reflecting components 30A thickness ratio solar cell list
The thickness of body 10 is thick.
Thus, even in light-reflecting components 30A from the case that solar battery cell 10 comes off, the light for the part that comes off is anti-
The face for penetrating the side of solar battery cell 10 of part 30A electric conductivity optical reflection film 32 also is located at than solar battery cell 10
Front is in the outer part (side of back-protective part 50).Its result be can make to come off part light-reflecting components 30 electric conductivity light
Reflectance coating 32 leaves the front of solar battery cell 10.Therefore, it is possible to avoid the generation of leakage current, so solar cell
The reliability of component 2 improves.
Also, in the present embodiment, light-reflecting components 30A has adhesive linkage 31b, so can be by light-reflecting components
30A is easily configured in the end of solar battery cell 10.For example, multiple solar energy can will linked by leader distribution 20
The battery strings 10S that battery cell 10 forms using face side filling component 61 and rear side filling component 62 carry out lamination treatment it
Before, paste solar battery cell 10 in light-reflecting components 30A defined position.Therefore, it is possible to accurately configure light
Reflection part 30A.
In addition, in the present embodiment, as shown in Figure 10, preferably light-reflecting components 30A adhesive linkage 31b thickness ratio is too
The thickness of positive energy battery cell 10 is thick.Thereby, it is possible to suppress light-reflecting components 30A bendings.For this point, Figure 11 A and figure are used
11B is described in detail.Figure 11 A are that the amplification on the light-reflecting components periphery of the solar cell module of the embodiment 4 shown in Fig. 9 is cut
Face figure.Figure 11 B are the light-reflecting components peripheries in the solar cell module of the variation 1 of the embodiment 4 shown in Figure 10
Amplification sectional view.
As described above, link multiple solar battery cells 10 using leader distribution 20 and after forming battery strings 10S, it is real
Apply lamination treatment.That is, face side filling component 61 and rear side filling component 62 and front protecting part 40 and the back side are utilized
Guard block 50, which clips, to be configured with light-reflecting components 30A multiple battery strings 10S in solar battery cell 10 and it is carried out
Thermo-compression bonding.Using thermo-compression bonding during lamination treatment now, light-reflecting components 30A fills out from face side filling component 61 and rear side
It is depressed to fill part 62.
In this case, as shown in Figure 11 A, light-reflecting components 30A adhesive linkage 31b thickness is less than solar cell list
During the thickness of body 10, pass through pressing during lamination treatment, light-reflecting components 30A is with to 2 adjacent solar battery cells 10
Between gap protrude mode bend.When light-reflecting components 30A is bent, light-reflecting components 30A light can not will be incided
Be directed to the desired position of solar battery cell 10, can not obtain because be configured with light-reflecting components 30A and caused by expectation
Generating efficiency improve effect.
In contrast, as shown in Figure 11 B, when light-reflecting components 30A adhesive linkage 31b thickness in solar cell list
When more than the thickness of body 10, light-reflecting components 30A is applied when lamination treatment and pressed, can also suppress light-reflecting components
30A is bent.Thereby, it is possible to reflect the light for inciding light-reflecting components 30A and be channeled to solar battery cell 10
Desired position, thus can obtain because be configured with light-reflecting components 30A and caused by desired generating efficiency improve effect.
In addition, the thickness of the thickness ratio solar battery cell 10 of adhesive linkage 31b by making light-reflecting components 30A is thick,
Adhesive linkage 31b can cover a part for the dorsal part colelctor electrode 12 of solar battery cell 10, can suppress dorsal part colelctor electrode 12
Peel off.On this point, described in detail using Figure 12 A and Figure 12 B.Figure 12 A are the variations 1 of the embodiment 4 shown in Figure 10
The close-up sectional view of the another way of solar cell module.Figure 12 B are the same solar cell modules shown in Figure 12 A
Part amplification back view.
As illustrated in figs. 12 a and 12b, when light-reflecting components 30A adhesive linkage 31b thickness in solar battery cell 10
Thickness more than when, pressing when can pass through lamination treatment makes light-reflecting components 30A adhesive linkage 31b around entering (entrance) sun
The back side of energy battery cell 10 (with the face for the face opposite side for being provided with light-reflecting components 30A).Thereby, it is possible to using around to
The adhesive linkage 31b coverings at the back side of solar battery cell 10 are arranged at the backside collector at the back side of solar battery cell 10
12 part.Specifically, the end of multiple secondary grid line (finger) electrodes of dorsal part colelctor electrode 12 is covered by adhesive linkage 31b
Portion.As a result, the end of adhesive linkage 31b suppression backside collectors 12 can be utilized, so dorsal part colelctor electrode 12 can be suppressed
Peel off the end of secondary gate line electrode.
In addition, as shown in Figure 9 and Figure 10, in the present embodiment, light-reflecting components 30A is configured to electric conductivity optical reflection film
32 front is relative with front protecting part 40, but can also as shown in Figure 13 and Figure 14, and light-reflecting components 30A is configured to lead
The front of electrical optical reflection film 32 is relative with back-protective part 50.In this case, light-reflecting components 30A thickness is also than too
The thickness of positive energy battery cell 10 is thick and outer positioned at the face of the side of solar battery cell 10 than electric conductivity optical reflection film 32
Side.Thereby, it is possible to suppress to produce leakage current when light-reflecting components 30A comes off from solar battery cell 10.
In addition, the configuration mode of the light-reflecting components 30A shown in Fig. 9,10,13 and 14, it is also preferred that as by the 1st solar energy
Battery cell 10A and electric conductivity optical reflection film 32 distance d1 and the 2nd solar battery cell 10B and electric conductivity optical reflection film 32
Distance d2 be added obtained by be worth addition distance (d1+d2) more than 110 μm.
Thus, the insulation distance between the 1st solar battery cell 10A and the 2nd solar battery cell 10B is reliably true
Protect more than 110 μm, so the application of the pulse voltage even for 800V, also also can effectively suppress broken because insulating
The generation of leakage current caused by bad.
In addition, the light-reflecting components 30A shown in Fig. 9 and Figure 10 is in the conductive optical reflection film in the side of front protecting part 40
32, thus resin base material 31a and adhesive linkage 31b material can be translucent material and the white material such as transparent material or
Any of non-light transmittance material such as black material, but the light-reflecting components 30A shown in Figure 13 and Figure 14 is overleaf protected
The conductive optical reflection film 32 in the side of part 50, so resin base material 31a and adhesive linkage 31b material are preferably by transparent material etc.
Translucent material is formed.
(variation etc.)
More than, it is illustrated based on 1~4 pair of solar cell module of the invention of embodiment, but the present invention is unlimited
Due to above-mentioned embodiment 1~4.
Such as in above-mentioned each embodiment, illustrate light-reflecting components 30 and 30A configurations in 2 adjacent solar energy
Example between battery cell 10, but not limited to this.As another configuration example, light-reflecting components 30 and 30A are as shown in figure 15,
It is configured to adjacent with the solar battery cell 10 of the adjacent most peripheral of framework 70.In this case, light-reflecting components 30 can
To configure upside down, can also be overlapped with the front of solar battery cell 10 or the end at the back side.
In addition, in the respective embodiments described above, light-reflecting components 30 and 30A configurations are between 2 adjacent battery strings 10S
Gap in, but be not limited to this.For example, as shown in figure 16, in battery strings 10S, light-reflecting components 300 can also be configured
In gap between 2 adjacent solar battery cells 10.
In addition, in above-mentioned each embodiment, light-reflecting components 30 and 30A are arranged to and all solar cell lists
The correspondence of body 10, but can also be set only for the solar battery cell 10 of a part.I.e., it is possible to it is not provided with photo-emission part
Between the solar battery cell of part 30.
In addition, in above-mentioned each embodiment, light-reflecting components 30 and 30A are between 2 adjacent battery strings 10S
In gap, have by each gap setting of the adjacent solar battery cell 10 of the long side direction along battery strings 10S it is multiple, still
Not limited to this.For example, light-reflecting components 30 and 30A can be in the gaps between 2 adjacent battery strings 10S, along battery
String 10S length direction is set in a manner of across multiple solar battery cells 10.As one, as shown in figure 17, light reflection
Part 30 and 30A can be the light-reflecting sheets throughout 1 overall battery strings 10S strip.
In addition, in the respective embodiments described above, light-reflecting components 30 and 30A form conductive optical reflection film in most surface
32, but it is not limited to this.For example, as shown in figure 18, light-reflecting components 30B can be to be formed at (the 1st insulation of insulating element 31
Part) electric conductivity optical reflection film 32 on be also formed with the structure of insulating element 33 (the 2nd insulating element).In this case,
Material as insulating element 33 needs to use translucent material, such as insulating element 33 is preferably to be formed by transparent resin material
Transparent component.
In addition, in above-mentioned each embodiment, the gap that is arranged between 2 adjacent solar battery cells 10
Light-reflecting components 30 and 30A number can be 1, or more than 2 multiple.
In addition, in the respective embodiments described above, the semiconductor substrate of solar battery cell 10 uses n-type semiconductor base
Plate, but semiconductor substrate can be p-type semiconductor substrate.
In addition, in the respective embodiments described above, solar cell module is the list that only front protecting part 40 is smooth surface
Face light mode but it is also possible to be make front protecting part 40 and back-protective part 50 both be smooth surface double-side photic
Mode.
In addition, in the respective embodiments described above, the semi-conducting material of the photoelectric conversion part of solar battery cell 10 is silicon,
But it is not limited to this.As the semi-conducting material of the photoelectric conversion part of solar battery cell 10, GaAs can be used
Or indium phosphide (InP) etc. (GaAs).
In addition, in addition, those skilled in the art it is conceivable that various modifications are implemented to each embodiment and obtained
Mode, do not depart from the present invention interesting purport in the range of by be combined inscape and the function of each embodiment come reality
Existing mode is also included in the present invention.
Description of reference numerals
1st, 2,3,4 solar cell module
10 solar battery cells
The solar battery cells of 10A the 1st
The solar battery cells of 10B the 2nd
10S battery strings
20 leader distributions
30th, 30A, 30B, 300 light-reflecting components
30a is concavo-convex
31st, 33 insulating element
31a resin base materials
31b adhesive linkages
32 electric conductivity optical reflection films
40 front protecting parts
50 back-protective parts
60 filling components
61 face side filling components
62 rear side filling components
70 frameworks
Claims (6)
- A kind of 1. solar cell module, it is characterised in that including：1st solar battery cell；The 2nd solar battery cell of gap configuration is separated with the 1st solar battery cell；WithAt least a portion is located at the light-reflecting components of the side of the 1st solar battery cell,The light-reflecting components have insulating element and are formed at the positive electric conductivity optical reflection film of the insulating element,The thickness of 1st solar battery cell described in the thickness ratio of the light-reflecting components is thick,The face of the 1st solar battery cell side of the electric conductivity optical reflection film is located at than the 1st solar cell The position of the front of monomer in the outer part,The light-reflecting components are arranged between the 1st solar battery cell and the 2nd solar battery cell, and are dashed forward Go out into the gap and with the end of the 1st solar battery cell and the end of the 2nd solar battery cell It is overlapping,As by the distance of the 1st solar battery cell and the electric conductivity optical reflection film and the 2nd solar cell Monomer be added with the distance of the electric conductivity optical reflection film obtained by be worth addition distance be more than 110 μm.
- 2. solar cell module as claimed in claim 1, it is characterised in that：The light-reflecting components configure across the 1st solar battery cell and the 2nd solar battery cell.
- 3. solar cell module as claimed in claim 1 or 2, it is characterised in that：The insulating element is the stepped construction of resin base material and adhesive linkage,The electric conductivity optical reflection film is formed at the face with adhesive linkage side opposite side of the resin base material.
- 4. solar cell module as claimed in claim 3, it is characterised in that：The thickness of 1st solar battery cell described in the thickness ratio of the adhesive linkage is thick.
- 5. solar cell module as claimed in claim 3, it is characterised in that：The two sides of 1st solar battery cell is provided with colelctor electrode,Face opposite side be provided with the light-reflecting components of the adhesive linkage around to the 1st solar battery cell Face and cover a part for the colelctor electrode in the face for being arranged at the opposite side.
- 6. solar cell module as claimed in claim 1, it is characterised in that：The front shape of the insulating element is concaveconvex shape,The front shape of the electric conductivity optical reflection film is based on the concaveconvex shape and turns into concaveconvex shape,The thickness ratio of the light-reflecting components is by the thickness of the 1st solar battery cell and the electric conductivity optical reflection film Concavo-convex height is worth thickness more than 55 μm obtained by being added.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-050913 | 2015-03-13 | ||
| JP2015050913 | 2015-03-13 | ||
| JP2015-171577 | 2015-08-31 | ||
| JP2015171577A JP6709977B2 (en) | 2015-03-13 | 2015-08-31 | Solar cell module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105977328A CN105977328A (en) | 2016-09-28 |
| CN105977328B true CN105977328B (en) | 2017-12-01 |
Family
ID=56982607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610139453.1A Active CN105977328B (en) | 2015-03-13 | 2016-03-11 | Solar cell module |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6709977B2 (en) |
| CN (1) | CN105977328B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017154384A1 (en) * | 2016-03-10 | 2017-09-14 | 株式会社カネカ | Solar cell module |
| JP6722910B2 (en) | 2016-09-28 | 2020-07-15 | パナソニックＩｐマネジメント株式会社 | Solar cell module and method of manufacturing solar cell module |
| WO2018061789A1 (en) * | 2016-09-29 | 2018-04-05 | パナソニックＩｐマネジメント株式会社 | Solar cell module |
| JP6883750B2 (en) * | 2016-09-30 | 2021-06-09 | パナソニックＩｐマネジメント株式会社 | Solar cell module |
| JP2018195653A (en) * | 2017-05-15 | 2018-12-06 | パナソニック株式会社 | Solar cell module |
| CN107359215A (en) * | 2017-08-28 | 2017-11-17 | 善仁（浙江）新材料科技有限公司 | A kind of reflective membrane in photovoltaic module string spacing/piece spacing |
| CN108172636A (en) * | 2017-12-28 | 2018-06-15 | 浙江祥邦科技股份有限公司 | A kind of composite material and its application for photovoltaic module synergy |
| CN108155260A (en) * | 2018-01-30 | 2018-06-12 | 3M创新有限公司 | Solar cell module |
| CN114709286B (en) * | 2022-03-31 | 2023-03-24 | 盐城百佳年代薄膜科技有限公司 | Photovoltaic module for realizing light transmission and collection of photovoltaic cell gaps |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008094048A2 (en) * | 2007-01-31 | 2008-08-07 | Renewable Energy Corporation Asa | Interconnecting reflector ribbon for solar cell modules |
| KR20100040181A (en) * | 2008-10-09 | 2010-04-19 | 장금식 | Solar photovolatic power generating appartus |
| US20090314326A1 (en) * | 2008-06-24 | 2009-12-24 | Moser Baer Photovoltaic Limited | Photovoltaic module |
| JP2010287688A (en) * | 2009-06-10 | 2010-12-24 | Mitsubishi Electric Corp | Solar cell module |
| JP2011210890A (en) * | 2010-03-29 | 2011-10-20 | Kyocera Corp | Photovoltaic power generator |
| JP2012119668A (en) * | 2010-11-12 | 2012-06-21 | Semiconductor Energy Lab Co Ltd | Photoelectric conversion module and photoelectric conversion device |
| JP2013065708A (en) * | 2011-09-16 | 2013-04-11 | Keiwa Inc | Solar cell module, back sheet for solar cell module, spacer for arrangement between solar cells, and manufacturing method of solar cell module |
| JP2013098496A (en) * | 2011-11-04 | 2013-05-20 | Mitsubishi Electric Corp | Solar battery module and manufacturing method thereof |
| JP6183717B2 (en) * | 2012-05-09 | 2017-08-23 | パナソニックＩｐマネジメント株式会社 | Solar cell module |
| JP5950154B2 (en) * | 2012-05-09 | 2016-07-13 | パナソニックＩｐマネジメント株式会社 | Solar cell module |
| CN102664210B (en) * | 2012-05-14 | 2015-05-06 | 友达光电股份有限公司 | Solar module and preparation method thereof |
| KR101890324B1 (en) * | 2012-06-22 | 2018-09-28 | 엘지전자 주식회사 | Solar cell module and ribbon assembly |
| KR20140098305A (en) * | 2013-01-30 | 2014-08-08 | 엘지전자 주식회사 | Solar cell module |
| KR102257808B1 (en) * | 2014-01-20 | 2021-05-28 | 엘지전자 주식회사 | Solar cell module |
-
2015
- 2015-08-31 JP JP2015171577A patent/JP6709977B2/en active Active
-
2016
- 2016-03-11 CN CN201610139453.1A patent/CN105977328B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016171299A (en) | 2016-09-23 |
| CN105977328A (en) | 2016-09-28 |
| JP6709977B2 (en) | 2020-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105977328B (en) | Solar cell module | |
| CN105977329B (en) | Solar cell module | |
| JP4294048B2 (en) | Solar cell module | |
| EP3067937B1 (en) | Solar cell module | |
| US10879410B2 (en) | Solar cell module | |
| CN108701734B (en) | Solar cell module | |
| US20170373210A1 (en) | Solar cell module | |
| KR20120138021A (en) | Solar cell module | |
| TWM502963U (en) | Solar cell module | |
| JP6384801B2 (en) | Solar cell module | |
| JP6467727B2 (en) | Manufacturing method of solar cell module | |
| JP6624535B2 (en) | Solar cell module | |
| JP6872729B2 (en) | Manufacturing method of solar cell module and solar cell module | |
| JP2017050514A (en) | Solar battery module | |
| JP6771200B2 (en) | Solar cell module | |
| CN109716537A (en) | Solar cell module | |
| CN109819682A (en) | The manufacturing method of solar cell module and solar cell module | |
| JP2018056454A (en) | Solar battery module and manufacturing method of solar battery module | |
| WO2022209585A1 (en) | Solar cell module and manufacturing method for solar cell module | |
| JP6883750B2 (en) | Solar cell module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |