CN109716537A - Solar cell module - Google Patents
Solar cell module Download PDFInfo
- Publication number
- CN109716537A CN109716537A CN201780057934.0A CN201780057934A CN109716537A CN 109716537 A CN109716537 A CN 109716537A CN 201780057934 A CN201780057934 A CN 201780057934A CN 109716537 A CN109716537 A CN 109716537A
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- Prior art keywords
- solar energy
- reflection layer
- layer
- cell module
- light
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- 239000002253 acid Substances 0.000 claims abstract description 54
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 28
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 28
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims abstract description 21
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 66
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 229920005989 resin Polymers 0.000 claims description 21
- 239000011347 resin Substances 0.000 claims description 21
- 230000003287 optical effect Effects 0.000 claims description 8
- 230000003252 repetitive effect Effects 0.000 claims description 8
- 230000002401 inhibitory effect Effects 0.000 claims description 5
- 230000035699 permeability Effects 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 220
- 239000000758 substrate Substances 0.000 description 47
- 239000000463 material Substances 0.000 description 24
- 239000012790 adhesive layer Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 10
- 238000010248 power generation Methods 0.000 description 10
- 238000012545 processing Methods 0.000 description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 8
- 230000005611 electricity Effects 0.000 description 8
- 238000003475 lamination Methods 0.000 description 8
- 239000004065 semiconductor Substances 0.000 description 8
- 229920000139 polyethylene terephthalate Polymers 0.000 description 7
- 239000005020 polyethylene terephthalate Substances 0.000 description 7
- 239000004332 silver Substances 0.000 description 7
- 229910052709 silver Inorganic materials 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 230000036961 partial effect Effects 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910021417 amorphous silicon Inorganic materials 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 5
- -1 polyethylene terephthalate Polymers 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 4
- 239000012780 transparent material Substances 0.000 description 4
- 239000007767 bonding agent Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical group [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 2
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 229910003978 SiClx Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000549 coloured material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- RHZWSUVWRRXEJF-UHFFFAOYSA-N indium tin Chemical compound [In].[Sn] RHZWSUVWRRXEJF-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000005001 laminate film Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000001579 optical reflectometry Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 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
-
- 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
Solar cell module (1) includes: solar energy monocell (10)；Filling component (60) comprising ethylene vinyl acetate；Reflection layer (32) is arranged in a manner of stretching out from the end of solar energy monocell (10), is clipped by solar energy monocell (10) and filling component (60)；With acid resistance layer (33), reflection layer (32) are laminated between filling component (60) and reflection layer (32).
Description
Technical field
The present invention relates to solar cell modules.
Background technique
In the prior art, solar cell module includes the light-receiving surface of solar energy monocell and configuration in solar energy monocell
The reflection component (such as patent document 1) of side.Solar energy monocell and reflection component are embedded in comprising ethylene vinyl acetate
The inside of packing material.
In the solar cell module, in order to effectively utilize the sun for exposing to the mutual gap of solar energy monocell
Light, the gap setting between solar energy monocell have light-reflecting components, light-receiving surface of the light-reflecting components than solar energy monocell
It is prominent, and tilted relative to light-receiving surface.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2013-98496 bulletin
Summary of the invention
Subject to be solved by the invention
But solar cell module is generally arranged at outside room, therefore in the environment for being easy to be caught in the rain.In this situation
Under, since water saturates make ethylene vinyl acetate be decomposed into filling component, generate acetic acid.Reflection layer is due to main
It is metal, therefore the acetic acid generated in the inside of filling component corrodes reflection layer, reflection layer loses metallic luster.Its result
It is the light reflective properties decline of reflection layer.
The corrosion that it is an object of the present invention to provide a kind of by inhibiting reflection layer, the light for being able to suppress reflection layer are anti-
Penetrate the solar cell module of performance decline.
The method used for solving the problem
To achieve the goals above, a mode of solar cell module of the invention includes: solar energy monocell；Packet
Filling component containing ethylene vinyl acetate；Reflection layer is set in a manner of stretching out from the end of the solar energy monocell
It sets, is clipped by the solar energy monocell with filling component；With acid resistance layer, in the filling component and the reflection layer
Between be laminated in the reflection layer.
In addition, to achieve the goals above, a mode of solar cell module of the invention includes: solar battery
String comprising by multiple solar energy monocells with line piece electrical connection；Filling component comprising ethylene vinyl acetate；Light reflection
Layer is arranged, by institute in a manner of stretching out from the end of the solar energy monocell with the nonoverlapping position of line piece with described
It states solar energy monocell and the filling component clips；With acid resistance layer, the filling component and the reflection layer it
Between be laminated in the reflection layer.
In addition, to achieve the goals above, a mode of solar cell module of the invention includes: solar energy list electricity
Pond；Filling component comprising ethylene vinyl acetate；With the reflection layer being arranged in a manner of being covered by the filling component；With
The acid resistance layer of the reflection layer is laminated between the filling component and the reflection layer.
Invention effect
The decline of the light reflective properties of reflection layer is able to suppress by inhibiting the corrosion of reflection layer according to the present invention.
Detailed description of the invention
Fig. 1 is the top view of the solar cell module of embodiment.
Part enlarged plan view when Fig. 2 is the solar cell module of embodiment in terms of face side.
Fig. 3 is the sectional view of the solar cell module of the embodiment of the III-III line of Fig. 1.
Fig. 4 is the enlarged partial sectional figure of the solar cell module of the embodiment of the IV-IV line of Fig. 2.
Fig. 5 is the enlarged partial sectional figure of the solar cell module of the variation of embodiment.
Fig. 6 is the enlarged partial sectional figure of the solar cell module of variation.
Specific embodiment
Hereinafter, the embodiments of the present invention will be described with reference to the drawings.Embodiment described below is the present invention
A preferred specific example.Therefore, numerical value, shape shown in embodiment below, material, constituent element, composition are wanted
The allocation position and connection type and process and the sequence of process etc. of element are an examples, but do not limit the present invention.Therefore,
In the structural element of the following embodiments and the accompanying drawings, just do not recorded in the independent claims for indicating upper concept of the invention
Structural element is illustrated as arbitrary structural element.
In addition, the record about " substantially * * ", is illustrated by taking " roughly the same " as an example, means, not only included
Exactly the same situation include thes case where substantially thinking identical.
In addition, each attached drawing is schematic diagram, not rigorous diagram.In addition, in the various figures, for substantially the same
Structure assigns identical appended drawing reference, and repeat description is omitted or simplified.
(embodiment)
[structure of solar cell module]
Firstly, for the outline structure of the solar cell module 1 of present embodiment, it is illustrated using FIG. 1 to FIG. 4.
Fig. 1 is the top view of the solar cell module of embodiment.Fig. 2 is the solar battery group from face side viewing embodiment
Part enlarged plan view when part.Fig. 3 is the sectional view of the solar cell module of the embodiment of the III-III line of Fig. 1.Figure
4 be the enlarged partial sectional figure of the solar cell module of the embodiment of the IV-IV line of Fig. 2.
In Fig. 1, the direction that equally spaced arrange along line direction 12 solar energy monocells 10 arrange is defined as X-axis
Direction.By in mode 2 adjacent solar battery string 10S parallel to each other, 6 solar battery string 10S are arranged in a column direction
The direction of column is defined as Y direction.Moreover, up and down direction is defined as Z-direction.In addition, in Fig. 1, X-direction, Y-axis side
To and Z-direction, due to being changed according to usage mode, it's not limited to that.Each figure after Fig. 1 is also identical.
" front " of solar cell module 1 refers to that light can be incident on the face of " front " side of solar energy monocell, too
" back side " of positive energy battery component 1, refers to the face of its opposite side.In addition, " front " of solar cell module 1 is upside (positive Z
Axis direction), " back side " of solar cell module 1 is downside (negative Z-direction).
As shown in FIG. 1 to 3, solar cell module 1 includes: multiple solar energy monocells 10, with line piece 20, light reflection
Component 30, front protecting component 40, back-protective component 50, filling component 60 and frame 70.Solar cell module 1 is constituted
To seal multiple solar energy monocells using filling component 60 between front protecting component 40 and back-protective component 50
10。
As shown in Figure 1, shape is, for example, substantially rectangular shape when the vertical view of solar cell module 1.As an example, solar energy
Battery component 1 is the substantially rectangular shape that horizontally long not about 1600mm, lengthwise are about 800mm.The shape of solar cell module 1
Shape is not limited to be the shape that there is the solar battery string 10S of 12 solar energy monocells 10 to be arranged 6, in addition, simultaneously
It is not limited to rectangular-shaped.
[solar energy monocell]
Solar energy monocell 10 is the photo-electric conversion element (photovoltaic element) that the light such as sunlight are converted to electric power.Solar energy
Monocell 10 is arranged with multi-disc in rectangular (matrix shape) in the same plane.
The multiple solar energy monocells 10 linearly arranged, constitute 2 adjacent solar energy monocells 10 each other by
The string linked with line piece 20.Multiple solar energy monocells 10 are configured to go here and there and by being electrically connected with line piece 20.1 solar energy
Multiple solar energy monocells 10 in battery strings 10S with line piece 20 by being connected in series.
In the present embodiment, pass through along 12 solar energy monocells 10 that line direction (X-direction) equally spaced arranges
1 solar battery string 10S is constituted by connecting with line piece 20.More specifically, each solar battery string 10S, by with 3
2 adjacent solar energy monocells 10 in line direction (X-direction) are linked successively with line piece 20 and are constituted, and are arranged along line direction
One column whole solar energy monocells 10 be concatenated.
Solar battery string 10S forms multiple.Multiple solar battery string 10S are arranged along column direction (Y direction).?
In present embodiment, 6 solar battery string 10S are equally spaced arranged along column direction in parallel relationship.
The solar energy monocell 10 of starting in each solar battery string 10S passes through in two end sides of line direction and matches line piece 20
It is connect with connection wiring.In addition, the solar energy monocell 10 of the most end in each solar battery string 10S, through with line piece 20 with
Connection wiring connection.By adopting such structure, multiple (in Fig. 1 6) solar battery string 10S are connected in series or parallel connection
It connects and constitutes monocell array.In the present embodiment, 6 adjacent solar battery string 10S are connected in series and constitute 1
Series connection (is formed 24 series connections of solar energy monocells 10).
As depicted in figs. 1 and 2, solar energy monocell 10 adjacent on line direction and column direction, too with adjacent other
Positive energy monocell 10 separates to be configured with gap.As described later, light-reflecting components 30 are configured in a manner of across the gap.
In the present embodiment, the shape when vertical view of solar energy monocell 10 is substantially rectangular shape.Specifically, too
Positive energy monocell 10 is the shape of the square unfilled corner of 125mm square, is the long side and linear or non-linear of linear
Short side alternately connects and the substantially octagonal shape that is formed.That is, 1 solar battery string 10S is with 2 adjacent solar energy
The mode that a line of monocell 10 is relative to each other is constituted.Wherein, the shape of solar energy monocell 10 is not limited to substantially square
Shape.
Solar energy monocell 10 is using semiconductor pn junction as basic structure, as an example, comprising: as n-type semiconductor substrate
N-shaped monocrystalline silicon substrate；The N-shaped amorphous silicon layer and n-side electrode sequentially formed in a main surface side of N-shaped monocrystalline silicon substrate；With
The p-type amorphous silicon layer and p-side electrode sequentially formed in another main surface side of N-shaped monocrystalline silicon substrate.It can also be in N-shaped monocrystalline silicon
Between substrate and N-shaped amorphous silicon layer or between N-shaped monocrystalline silicon substrate and p-type amorphous silicon layer, i-type amorphous silicon layer, silica are set
Passivation layer as layer inhibits the compound of generated carrier.N-side electrode and p-side electrode are, for example, ITO (Indium Tin
The transparent electrodes such as Oxide).
In the present embodiment, solar energy monocell 10 is in the main light receiving side of solar cell module 1 with n-side electrode
The mode of (40 side of front protecting component of Fig. 3) configures, but it's not limited to that.In addition, if solar cell module 1 is
Single side light mode is not necessarily then transparent positioned at the electrode (being in the present embodiment p-side electrode) of back side, such as
It can be with reflexive metal electrode.
As shown in figure 3, front is the face of 40 side of front guard block, and the back side is the back side in each solar energy monocell 10
The face of 50 side of guard block.Positive side collector 11 and back side collector 12 are formed in solar energy monocell 10.Positive side collector
11 are electrically connected with the positive lateral electrode (such as n-side electrode) of solar energy monocell 10.Back side collector 12 and solar energy monocell
10 back side lateral electrode (such as p-side electrode) electrical connection.
Positive side collector 11 and back side collector 12 are respective for example, with the side orthogonal with the extending direction of line piece 20 is matched
Formula is formed as more linear secondary gate line electrodes；It is connect with these secondary gate line electrodes, and along orthogonal with secondary gate line electrode
Direction (extending direction with line piece 20) be formed as more linear main grid line electrodes.The radical of main grid line electrode, such as
It is identical as with the quantity of line piece 20, it is in the present embodiment 3.Here, positive side collector 11 and back side collector 12 be each other
For same shape, but it's not limited to that.
Positive side collector 11 and back side collector 12 are formed by low resistance conductive materials such as silver-colored (Ag).For example, positive side current collection
Pole 11 and back side the collector 12, (silver of the conductive paste as obtained from will disperse the electroconductive stuffings such as silver in adhesive resin
Cream etc.) with defined pattern carries out silk-screen printing and is formed.
In the solar energy monocell 10, can make both front and backs is light-receiving surface.When light is incident to solar energy
When monocell 10, carrier is generated in the photoelectric conversion part of solar energy monocell 10.The carrier of generation is by positive side collector 11
It is collected with back side collector 12 and flows into and match line piece 20.In this way, by setting positive side collector 11 and back side collector 12, it can
Effectively the carrier that solar energy monocell 10 generates is taken out to external circuit.
[connection wiring]
With line piece 20 (interconnector), in solar battery string 10S, each other by 2 adjacent solar energy monocells 10
Electrical connection.In the present embodiment, 2 adjacent solar energy monocells 10 match line piece by 3 configured generally parallel to each other
20 connections.Respectively match line piece 20, is extended along the x axis relative to the 2 solar energy monocells 10 arranged in X-direction.
It is the conductive wires of strip, e.g. band-like metal foil, thin-line-shaped metal wire with line piece 20.With line piece
20 such as will be covered using scolding tin, silver the metal foils such as copper foil, silver foil it is entire front obtained from material with defined
Length is truncated into strip and can manufacture.
About line piece 20 is respectively matched, an end with line piece 20 configures one in 2 adjacent solar energy monocells 10
The front of a solar energy monocell 10, the other end configuration with line piece 20 are another in 2 adjacent solar energy monocells 10
The back side of one solar energy monocell 10.
Respectively with line piece 20 in 2 adjacent solar energy monocells 10, by the face side collection of a solar energy monocell 10
Electrode 11 is electrically connected with the back side collector 12 of another solar energy monocell 10.For example, with line piece 20 and solar energy list electricity
The positive side collector 11 in pond 10 and the main grid line electrode of back side collector 12, by the resin comprising scolding tin, conductive particle
It is engaged etc. conductive bonding agent.
[light-reflecting components]
As shown in figure 4, the back side in solar energy monocell 10 is configured with reflection layer 32.Reflection layer 32 at least by
Smooth surface side has light reflective, and incident light is reflected.
Light-reflecting components 30 are configured in a manner of the gap between 2 adjacent solar energy monocells 10.In this reality
It applies in mode, light-reflecting components 30 are in a manner of the gap across the adjacent 2 solar energy monocell 10 in Y direction, setting
In each of 2 adjacent solar energy monocells 10.Since each light-reflecting components 30 are across 2 adjacent solar energy monocells
The mode in 10 gap configures, therefore the width of each light-reflecting components 30 is than the gap of adjacent 2 solar energy monocells 10
Interval is big.
Each gap of 2 adjacent solar energy monocells 10, positioned at solar energy monocell 10 one side and with this
On one side another opposite solar energy monocell 10 while between.That is, the gap of a 2 adjacent solar energy monocells 10,
It is longer in the row direction, it is upwardly extended in the side parallel with solar battery string 10S.That is, light-reflecting components 30, are separating gap
Ground configuration not by the back side of the adjacent 2 solar energy monocell 10 connected with line piece 20, from a solar energy monocell
10 across setting to another solar energy monocell 10.
In the present embodiment, light-reflecting components 30, in addition to the solar energy monocell of the solar battery string 10S of most peripheral
Other than 10,1 solar energy monocell 10 is provided with 2 light-reflecting components 30.Light-reflecting components 30 are in solar battery string
What is extended on the line direction of 10S is band-like, is the rectangular-shaped of strip as an example.Light-reflecting components 30, with width direction (Y-axis
Direction) the end mode Chong Die with the end of solar energy monocell 10, along the stickup on one side of solar energy monocell 10.
That is, light-reflecting components 30 are pasted substantially in parallel with line piece 20.
Light-reflecting components 30 have substrate layer 31, reflection layer 32 and acid resistance layer 33, the successively layer in negative Z-direction
It is folded.
In the present embodiment, light-reflecting components 30 utilize the adhesive layer that the back side of solar energy monocell 10 is arranged in
34, it is adhered to solar energy monocell 10.Adhesive layer 34 is arranged in the mode being clipped between substrate layer 31 and solar energy monocell 10,
For be formed in substrate layer 31 10 side of solar energy monocell transparent adhering part.The whole of substrate layer 31 is arranged in adhesive layer 34
A surface.That is, 10 side of solar energy monocell that adhesive layer 34 covers reflection layer 32 is whole.
Adhesive layer 34 is made of the material more soft than substrate layer 31.For example, bonding agent 36 is by ethylene vinyl acetate (second
The abbreviation of alkene vinyl acetate co-polymer, commonly referred to as EVA:Ethylene-Vinyl Acetate) formed heat sensitive adhesive
Or pressure adhesive.Light-reflecting components 30 can be bonded and fixed to solar energy monocell 10 by heating crimping as a result,.
In this way, the material by using the material more soft than substrate layer 31 as adhesive layer 34, is utilizing adhesive layer 34
When light-reflecting components 30 are adhered to solar energy monocell 10, bonding can be formed at the back side of solar energy monocell 10 and side
The fillet (fillet) of layer 34.As a result, due to the contact area for being capable of increasing solar energy monocell 10 Yu adhesive layer 34, because
The bonding force of this solar energy monocell 10 and light-reflecting components 30 improves.
In the present embodiment, substrate layer 31 makes 33 light-reflecting components 30 of reflection layer 32 and acid resistance layer, can also be with
The material of adhesive layer 34 is increased as light-reflecting components using on the basis of substrate layer 31, reflection layer 32 and acid resistance layer 33
30, or substrate layer 31 and reflection layer 32 can also be regard as light-reflecting components 30.That is, light-reflecting components 30 can be substrate
Layer 31, reflection layer 32, the 4 layers of structure or substrate layer 31 of acid resistance layer 33 and adhesive layer 34 and reflection layer 32 2 layers of knot
Structure.
Substrate layer 31 is constituted such as by polyethylene terephthalate (PET) or acrylate.In addition, reflection layer
32 be, for example, the metal film formed by metals such as aluminium or silver, is aluminium-vapour deposition film in the present embodiment.
Reflection layer 32 is clipped by solar energy monocell 10 and filling component 60.That is, at the back side of solar energy monocell 10
Adhesive layer 34 and reflection layer 32 between be provided with substrate layer 31.Reflection layer 32 is arranged by substrate layer 31 and adhesive layer 34
In solar energy monocell 10.In the present embodiment, substrate layer 31, across 2 adjacent sun in the same manner as reflection layer 32
The mode in the gap of energy monocell 10 is arranged.
Substrate layer 31 more leans on the main light receiving side of solar cell module 1 compared with reflection layer 32.Therefore, substrate layer 31
Material, it is incident from the main light-receiving surface of solar cell module 1 in order to be made using the face of the main light receiving side of reflection layer 32
Light reflection, be made of translucent materials such as transparent materials.
As the specific material of substrate layer 31, e.g. polyethylene terephthalate (PET) or acrylic acid etc.,
In present embodiment, substrate layer 31 is transparent PET piece.
At the back side of substrate layer 31, it is formed with the shape processing structure 31a of concaveconvex shape.Substrate layer 31, such as recess portion (paddy
Portion) and protrusion (mountain portion) between height be 5 μm or more 100 μm hereinafter, the interval (pitch, spacing) of adjacent protrusion is 20 μ
400 μm of m or more or less.In the present embodiment, the height between recess portion and protrusion is 12 μm, the interval of adjacent protrusion (
Away from) it is 40 μm.
The shape processing structure 31a of substrate layer 31, as an example, for along the triangle of the length direction of light-reflecting components 30
Groove shape.But it's not limited to that for the shape of shape processing structure 31a, as long as the structure that light can be made to scatter, it can
To be cone shape, quadrangle cone shape or polygonal cone-shaped, or by shape obtained from these combination of shapes etc..
Reflection layer 32 is formed in the back side of shape processing structure 31a.Reflection layer 32 is, for example, by metals such as aluminium or silver
The metal film (metallic reflective coating) of composition.The reflection layer 32 being made of metal film, such as base can be formed in by vapor deposition etc.
The back side of the shape processing structure 31a of plate layer 31.Therefore, the surface shape of reflection layer 32 is to copy shape processing structure 31a
Concaveconvex shape and the concaveconvex shape that is formed.That is, reflection layer 32 is the repetitive structure of multiple protrusions Yu multiple recess portions.In this reality
It applies in mode, reflection layer 32 is aluminium-vapour deposition film.
Acid resistance layer 33 is the film formed at the back side of reflection layer 32, such as film thickness is about 30nm.Acid resistance layer 33
The layer being e.g. made of inorganic optical layer, metal layer, resin layer etc..It is magnesium fluoride, dioxy as an example of inorganic optical layer
SiClx, lithium fluoride, calcirm-fluoride etc..It is nickel, silver etc. as an example of metal layer.It is polyolefins tree as an example of resin layer
Rouge, acrylic resin, epoxy resin, fluororesin, polyvinylidene chloride, polycarbonate etc..Inorganic optical layer, metal layer, resin
Layer etc. has the property of the transmission for the acetic acid for inhibiting to generate (generation) because of filling component 60 comprising ethylene vinyl acetate.
Acid resistance layer 33 is laminated in reflection layer 32 between filling component 60 and reflection layer 32.So that reflection layer 32
The mode not contacted with filling component 62 covers reflection layer 32 from back side.That is, acid resistance layer 33 covers reflection layer 32,
So that reflection layer 32 will not be molten because of acetic acid even if producing acetic acid in the filling component 62 comprising ethylene vinyl acetate
Solution.In the present embodiment, acid resistance layer 33 is formed in the interface of reflection layer 32.
Acid resistance layer 33 such as can by vapor deposition be formed in substrate layer 31 shape processing structure 31a the back side.Therefore,
The surface shape of reflection layer 32 is the concaveconvex shape for copying shape processing structure 31a and the concaveconvex shape formed, therefore acidproof
Property layer 33 be also the concaveconvex shape for copying reflection layer 32 and the concaveconvex shape that is formed.That is, acid resistance layer 33 is also multiple protrusions
With the repetitive structure of multiple recess portions.In addition, in the case where forming acid resistance layer 33 using resin layer, the surface of acid resistance layer 33
It for the concaveconvex shape lower than shape processing structure 31a, or is not the shape of concaveconvex shape.
Light-reflecting components 30 are the stepped constructions of substrate layer 31, reflection layer 32 and acid resistance layer 33.That is, will be in substrate layer
The use that 31 back side is formed with reflection layer 32 is used as light-reflecting components 30.Light-reflecting components 30, which have, keeps incident next light anti-
The light reflection function penetrated.
As depicted in figs. 1 and 2, light-reflecting components 30 are provided with multiple.Each light-reflecting components 30 are in solar battery string
The band-like light-reflecting sheet that the length direction of 10S extends is strip rectangle shape and is lamellar as an example.Each light reflection
Component 30, such as length are 100mm~130mm, and width is 1mm~20mm, with a thickness of 0.05mm~0.5mm.As an example, light
Reflection component 30, the length is 125mm, width 5mm, with a thickness of 0.1mm.
In the present embodiment, light-reflecting components 30 are due to the reflection layer 32 with concaveconvex shape, can make into
The light of light-reflecting components 30 is incident upon to defined direction scattered reflection.That is, light-reflecting components 30 are as light scattered reflection component
The light diffusion reflection sheet to play a role.
In the present embodiment, back side of the configuration of light-reflecting components 30 in solar energy monocell 10.If light reflected
Component 30 configures the face side in solar energy monocell 10, then in the overlapping portion of light-reflecting components 30 and solar energy monocell 10
Point, the effective coverage (power generation region) of solar energy monocell 10 may be generated shading loss by 30 shading of light-reflecting components, lead to
It crosses the configuration of light-reflecting components 30 in the back side of solar energy monocell 10, such shading loss can be reduced.
As shown in Figure 3 and Figure 4, the side opposite with back-protective component 50 with the back side of reflection layer 32 of light-reflecting components 30
Formula configuration.That is, light-reflecting components 30 are located at 40 side of front protecting component with substrate layer 31, and reflection layer 32 is located at back side guarantor
The mode of shield 50 side of component configures.
Light-reflecting components 30 are filled the sealing of component 60.Specifically, light-reflecting components 30 are by face side filling component 61
It is sealed with back side filling component 62.More specifically, 40 side of front protecting component (main light receiving side) of light-reflecting components 30,
It is covered by face side filling component 61,50 side of back-protective component of light-reflecting components 30 is covered by back side filling component 62.
In other words, light-reflecting components 30 are arranged in a manner of being clipped by solar energy monocell 10 and back side filling component 62.
In this way, adjacent 2 solar energy monocells 10 (solar energy monocell 10 and adjacent another solar energy monocell
10) gap between is covered by light-reflecting components 30 (reflection layer 32).
By adopting such structure, from the light that main light receiving side is incident to solar cell module 1, be incident to it is adjacent
2 solar energy monocells 10 between gap in light, through front protecting component 40, face side filling component 61 and bonding
Layer 34 and reach light-reflecting components 30, and then through light-reflecting components 30 substrate layer 31, because of the concaveconvex shape of reflection layer 32
And it is diffused reflection (scattering).The light of scattered reflection, at the interface or front protecting portion of front protecting component 40 and air layer
The interface of part 40 and filling component 60 is reflected, and solar energy monocell 10 is directed to.As a result, by making to be incident to power generation nothing
Effect region (it in the present embodiment, is the region in gap between 2 adjacent solar battery string 10S, it cannot will be incident
Region of the light for power generation), the light in the region in gap between 2 i.e. adjacent solar energy monocells 10 is also effective in hair
Electricity is contributed, and can be improved the generating efficiency of solar cell module 1.
[front protecting component, back-protective component]
As shown in figure 3, front protecting component 40 is the component for protecting the face of positive side of solar cell module 1, prevent too
The inside (solar energy monocell 10 etc.) of positive energy battery component 1 is influenced by external environments such as wind and rain, external impacts.Front is protected
The configuration of component 40 is protected in the face side of solar energy monocell 10, protects the light-receiving surface of the face side of solar energy monocell 10.
Front protecting component 40, the light transmission penetrated by being used in the light of wave band of photoelectric conversion in solar energy monocell 10
Property component constitute.Front protecting component 40, the glass substrate or film-form or plate being e.g. made of transparent glass material
With translucency and hide the resin substrate that the resin material of aqueous hard constitutes.
On the other hand, back-protective component 50 is the component for protecting the face of back side of solar cell module 1, protects the sun
The inside of energy battery component 1 is not so that it is influenced by external environment.Back-protective component 50 is configured in solar energy monocell
10 back side protects the light-receiving surface of the back side of solar energy monocell 10.
Back-protective component 50, e.g. by polyethylene terephthalate (PET) or polyethylene naphthalate
(PEN) film-form that resin materials are constituted or the resin sheet of plate such as.
Since the solar cell module 1 of present embodiment is single side light mode, back-protective component 50 can also
To be lighttight plate body or film.In the case, as back-protective component 50, for example, also can be used dark features or
There is the opaque components (component of light-proofness) such as the laminate films such as the resin films of metal foils such as aluminium foil in inside.Back-protective
Component 50 is not limited to opaque component, is also possible to the light transparent members such as the sheet glass being made of glass material or glass substrate.
Filling component 60 is filled between front protecting component 40 and back-protective component 50.Front protecting component 40 and
Back-protective component 50 and solar energy monocell 10 are bonded and are fixed by the filling components 60.
[filling component]
Filling component 60 configures between front protecting component 40 and back-protective component 50.In the present embodiment, it fills out
It is filled in a manner of the space for filling component 60 to fill up between front protecting component 40 and back-protective component 50.
Filling component 60 is made of face side filling component 61 and back side filling component 62.61 He of face side filling component
Back side filling component 62 is covered each by the multiple solar energy monocells 10 configured in a matrix form.
Face side filling component 61, with anti-from the face side of each solar energy monocell 10 covering solar energy monocell 10 and light
The mode for penetrating layer 32 is formed.Specifically, face side filling component 61, to cover whole solar energy from 40 side of front protecting component
The mode of monocell 10 and whole light-reflecting components 30 is formed.Face side filling component 61 can not include EVA, be also possible to
The identical material of back side filling component 62.
Back side filling component 62 is with anti-from the back side of each solar energy monocell 10 covering solar energy monocell 10 and light
The mode for penetrating layer 32 is formed.Specifically, back side filling component 62, to cover whole solar energy from 50 side of back-protective component
The mode of monocell 10 and whole light-reflecting components 30 is formed.Back side filling component 62 is made of the material comprising EVA.
Multiple solar energy monocells 10, such as by the face side filling component 61 and back side filling component by sheet
62 states clipped carry out lamination treatment (lamination process) and the whole component 60 that is filled covers.
Specifically, using link multiple solar energy monocells 10 with line piece 20 and after forming solar battery string 10S,
It is using face side filling component 61 and back side filling component 62 that multiple solar battery string 10S are sandwiched therebetween, and then at it
Configuration front protecting component 40 and back-protective component 50 up and down, such as hot pressing is carried out in a vacuum in 100 DEG C or more of temperature
It connects.By the thermo-compression bonding, face side filling component 61 and back side filling component 62 are heated and melt, and become solar energy list
The filling component 60 that battery 10 seals.
Face side filling component 61 before lamination treatment, the resin being e.g. made of resin materials such as EVA or polyolefin
Piece configures between multiple solar energy monocells 10 and front protecting component 40.Face side filling component 61 passes through lamination treatment
It is filled in a manner of the gap mainly filled up between solar energy monocell 10 and front protecting component 40.
Face side filling component 61 is made of translucent material.In the present embodiment, as the front before lamination treatment
Side filling component 61 uses the transparent resin sheet being made of EVA.
Back side filling component 62 before lamination treatment, the white resin piece being e.g. made of resin materials such as EVA, matches
It sets between multiple solar energy monocells 10 and back-protective component 50.Back side filling component 62 is by lamination treatment with main
The mode in the gap filled up between solar energy monocell 10 and back-protective component 50 is filled.
Since the solar cell module 1 in present embodiment is single side light mode, back side filling component 62
It is not limited to translucent material, can also be made of coloured materials such as black material or white materials.As an example, using by
The white resin piece that EVA is constituted is as the back side filling component 62 before lamination treatment.
[frame]
As shown in Figure 1, frame 70 is the outline border for being covered on the peripheral ends of solar cell module 1.Frame 70 is, for example,
The aluminium chassis (aluminium frame) of aluminum.Frame 70 uses 4, be separately mounted to the 4 of solar cell module 1 while it is each while.Frame 70
Such as each side of solar cell module 1 is fixed in using bonding agent.
In solar cell module 1, it is provided with the terminal taken out for obtained electric power that solar energy monocell 10 generates electricity
Box, but it is not shown here.Terminal board is for example fixed on back-protective component 50.It is built-in in terminal board and is installed on circuit substrate
Multiple circuit blocks.
[effect etc.]
Then, the effect of the solar cell module of present embodiment 1 is illustrated.
As described above, the solar cell module 1 of embodiment 1 includes: solar energy monocell 10；Include ethylene vinyl acetate second
The filling component 60 of enester；Reflection layer 32 is arranged, by solar energy in a manner of stretching out from the end of solar energy monocell 10
Monocell 10 and filling component 60 clip: and acid resistance layer 33, light is laminated between filling component 60 and reflection layer 32
Reflecting layer 32.
By using above-mentioned structure, even if generating second in filling component 62 due to the water being impregnated in filling component 62
Acid also due to acid resistance layer 33 is laminated in reflection layer 32 between filling component 60 and reflection layer 32, therefore is able to suppress
The transmission for the acetic acid that filling component 60 generates.Therefore, reflection layer 32 is not readily susceptible to the corruption of the acetic acid of the generation of filling component 62
Erosion.As a result, the light reflective properties of reflection layer 32 are not allowed to tend to decrease.
Therefore, reflection layer is able to suppress by inhibiting the corrosion of reflection layer 32 according to the solar cell module 1
The decline of 32 light reflective properties.
In addition, the solar cell module 1 of embodiment 1 includes: including multiple solar energy by being electrically connected with line piece 20
The solar battery string 10S of monocell 10；Filling component 60 comprising ethylene vinyl acetate；Reflection layer 32, with match
The nonoverlapping position of line piece 20 is arranged, by 10 He of solar energy monocell in a manner of stretching out from the end of solar energy monocell 10
Filling component 60 clips；And the acid resistance layer 33 of reflection layer 32 is laminated between filling component 60 and reflection layer 32.Benefit
Identical function and effect can be also obtained with the structure.
In addition, acid resistance layer 33, acetic acid draws compared with reflection layer 32 in the solar cell module 1 of embodiment 1
The solubility risen is lower, or the permeability of acetic acid is lower compared with filling component 60.
Using the above structure, the solubility due to caused by the acetic acid compared with reflection layer 32 of acid resistance layer 33 is higher,
Acid resistance layer 33 is not easily dissolved.Further, since the permeability of the acetic acid compared with filling component 60 of acid resistance layer 33 is lower, therefore
Acetic acid is less easily accessible to reflection layer 32.For these reasons, the reflection layer covered by substrate layer 31 and acid resistance layer 33
32 do not allow it is perishable.As a result, the light reflective properties of reflection layer 32 are not allowed to tend to decrease.
In addition, acid resistance layer 33 is inhibited from ethylene vinyl acetate second in the solar cell module 1 of embodiment 1
Inorganic optical layer, metal layer, the resin layer of the acetic acid contact reflection layer 32 of enester.
If acid resistance layer 33 is inorganic optical layer, metal layer, resin layer, it is able to suppress acetic acid contact reflection layer
32.That is, the light reflective properties of reflection layer 32 are not easy to be damaged in the solar cell module 1.
In addition, the front of reflection layer 32 has along solar energy list in the solar cell module 1 of embodiment 1
The repetitive structure for the triangular groove shape that the direction of the end of battery 10 is formed.
In addition, the solar cell module 1 of embodiment 1 further include: the face side of solar energy monocell 10 is arranged in
Front protecting component 40；With the back-protective component 50 for the back side that solar energy monocell 10 is arranged in.In addition, filling component 60
It include: to be set to face side between solar energy monocell 10 and front protecting component 40 in the face side of solar energy monocell 10
Filling component 61；And it is set between solar energy monocell 10 and back-protective component 50 in the back side of solar energy monocell 10
Back side filling component 62.Reflection layer 32 is configured to, and the light that reflection layer 32 reflects is on the boundary of front protecting component 40
Face is reflected, and solar energy monocell 10 is directed to.
By using above-mentioned structure, from the light that main light receiving side is incident to solar cell module 1, it is incident to adjacent
2 solar energy monocells 10 between gap light, such as through face side filling component 61 reach light-reflecting components 30, thoroughly
It crosses substrate layer 31 and is diffused reflection (scattering) because of the concaveconvex shape of reflection layer 32.The light of the scattered reflection has been carried out,
Occur at the interface or front protecting component 40 of front protecting component 40 and air layer and the interface of face side filling component 61 complete
Reflection, is directed to solar energy monocell 10.As a result, due to that can make to be incident to inactive area (in the present embodiment,
The region in the gap between adjacent 2 strings 10S, cannot make incident light for power generation region) i.e. adjacent 2 solar energy
The light in the region in the gap between monocell 10 is also effectively used for generating electricity, therefore can be improved solar cell module 1
Generating efficiency.In addition, light from the back side of solar cell module 1 it is incident in the case where it is also identical.
In addition, in the solar cell module 1 of embodiment 1, the front of reflection layer 32 have with it is adjacent too
The repetitive structure for the triangular groove shape that the side that the orientation of positive energy battery strings 10S intersects is upwardly formed.Also can using the structure
Enough obtain identical function and effect.
In addition, being provided with multiple solar battery string 10S in the solar cell module 1 of embodiment 1.Light reflection
Layer 32 with from a solar energy monocell 10 in adjacent solar battery string 10S across setting to adjacent solar battery string
The mode of another solar energy monocell 10 in 10S is arranged.
Using the above structure, since the region in the gap being incident between 2 adjacent solar energy monocells 10 can be made
In light be more efficiently used for generating electricity, therefore can be improved the generating efficiency of solar cell module 1.
It configures when by light-reflecting components 30 in the back side of solar energy monocell 10, in light-reflecting components 30 and solar energy
The effective coverage (power generation region) of the lap solar energy monocell 10 of monocell 10 may by 30 shading of light-reflecting components and
Generate shading loss.By the way that the configuration of light-reflecting components 30 in the back side of solar energy monocell 10, can be reduced such screening
Light loss.
(variation of embodiment)
Fig. 5 is the enlarged partial sectional figure of the solar cell module 1 of the variation of embodiment.
As shown in figure 5, the setting of light-reflecting components 30 is in solar energy list electricity in the solar cell module 1 of this variation
The face side in pond 10, this puts different from embodiment.In variation, light-reflecting components 30, setting about by X-direction and
Face as defined in Y direction be the symmetrical position in face, only this put it is different from embodiment, due to other structures be it is identical,
For identical structure, identical appended drawing reference is assigned, the description thereof will be omitted.
In the solar cell module 1 of this variation, light-reflecting components 30 with across adjacent 2 in Y direction too
The mode in the gap of positive energy monocell 10, it is each to be arranged in 2 adjacent solar energy monocells 10.That is, light-reflecting components 30,
In the face side for separating the adjacent 2 solar energy monocell 10 configured with gap, with from a solar energy monocell 10 across setting
Mode to another solar energy monocell 10 is arranged.
In this variation, light-reflecting components 30 have substrate layer 31, reflection layer 32 and acid resistance layer 33, towards positive Z
Axis direction is laminated in this order.
Light-reflecting components 30 are adhered to solar energy using the adhesive layer 34 for the face side that solar energy monocell 10 is arranged in
The face side of monocell 10.Adhesive layer 34 is arranged in the mode being clipped between substrate layer 31 and solar energy monocell 10, to be formed
Transparent adhering part in 10 side of solar energy monocell of substrate layer 31.
Acid resistance layer 33 is formed in the film on the surface of reflection layer 32.Acid resistance layer 33 is reflected from face side covering light
Layer 32, so that reflection layer 32 is not contacted with filling component 62.That is, acid resistance layer 33 is covered with the state being close to reflection layer 32
Lid reflection layer 32, so that acetic acid is not also anti-with light even if generating acetic acid in the filling component 62 comprising ethylene vinyl acetate
Penetrate the contact of layer 32.
Acid resistance layer 33 is the transparent material with translucency.That is, the case where acid resistance layer 33 is inorganic optical layer
Under, such as the transparent materials such as magnesium fluoride, silica, lithium fluoride, calcirm-fluoride are used for acid resistance layer 33.In addition, in acid resistance
Layer 33 in the case where resin layer, such as by polyolefin resin, acrylic resin, epoxy resin, fluororesin, gather inclined two chloroethene
The transparent materials such as alkene, polycarbonate are used for acid resistance layer 33.In turn, in the case where acid resistance layer 33 is metal layer, the metal
Layer can also not have light reflection function.It especially, can be higher than light reflectivity in 33 use of acid resistance layer and other metal phases
Silver.In the case, the transmission of acid resistance layer 33 is also penetrated through the light of front protecting component 40 and filling component 61, it is anti-in light
It penetrates layer 32 to be scattered, therefore does not damage the light reflection function of light-reflecting components 30.
In addition, in this variation, the power generation dead space of the end of solar energy monocell 10 is arranged in light-reflecting components 30
Domain.Specifically, the area of the end of solar energy monocell 10, not set positive side collector 11 is arranged in light-reflecting components 30
Domain.By adopting such structure, can be improved production efficiency, and it can efficiently utilize the power generation of solar energy monocell 10
Ability.
The solar cell module 1 of this such variation includes: solar energy monocell 10；Include ethylene vinyl acetate
Filling component 60；The reflection layer 32 being arranged in a manner of being filled component 60 and covering；It is reflected in filling component 60 and light
The acid resistance layer 33 of reflection layer 32 is laminated between layer 32.Identical function and effect can be also obtained using the structure.
In addition, the solar cell module 1 of this variation further includes connecting with the light receiving side of solar energy monocell 10
With line piece 20.In addition, the light receiving side with line piece 20 is arranged in reflection layer 32.Reflection layer 32 is arranged in acid resistance layer 33
Light receiving side.
In the case, it is incident to gap (the power generation dead space between 2 solar energy monocells 10 adjacent when vertical view
Domain) light, be diffused reflection (scattering) because of light-reflecting components 30, be directed to solar energy monocell 10.Therefore, can make
The light for being incident to power generation inactive area is efficiently used for generating electricity, and can be improved the generating efficiency of solar cell module 1.
In addition, acid resistance layer 33 is inhibited from ethylene-vinyl acetate in the solar cell module 1 of this variation
Inorganic optical layer, metal layer or the resin layer that the acetic acid of ester is contacted with reflection layer 32.It can also be obtained using the structure identical
Function and effect.
In addition, in turn, the surface of reflection layer 32 has along with line piece in the solar cell module 1 of this variation
The repetitive structure for the triangular groove shape that 20 extending direction is formed.Identical function and effect can be also obtained using the structure.
Other function and effect of this variation are also identical as embodiment.
(other variations etc.)
Above, it for solar cell module of the invention, is illustrated based on embodiment, but the present invention is not
It is defined in above-mentioned embodiment.
For example, light-reflecting components are configured to the back side current collection with solar energy monocell in above-mentioned each embodiment
Pole is not overlapped, but it's not limited to that.Specifically, light-reflecting components also can be configured to the back side with solar energy monocell
The end (end of secondary gate line electrode) of side collector is overlapped.
Fig. 6 is the enlarged partial sectional figure of the solar cell module of variation.In addition, in above-mentioned each embodiment
In, as shown in Figure 6, acid resistance layer 33 can not also copy the concaveconvex shape of reflection layer 32, can also be filled in adjacent convex
Recess portion between portion.
In addition, light-reflecting components configure between 2 adjacent solar battery strings in above-mentioned each embodiment
Gap, but it's not limited to that.For example, it can be between the adjacent solar energy monocell in solar battery string
Gap configure light-reflecting components.Light-reflecting components are structures identical with light-reflecting components, can with light-reflecting components phase
Same configuration and shape is pasted on solar energy monocell.
In addition, in above-mentioned each embodiment, gap of the light-reflecting components between 2 adjacent solar battery strings
According to each gap setting of adjacent solar energy monocell, but it's not limited to that.For example, it can be photo-emission parts
Part, in the gap between 2 adjacent solar battery strings, the length direction along solar battery string is across multiple solar energy
The mode of monocell is arranged.As an example, light-reflecting components are also possible to 1 strip throughout solar battery string entirety
Light-reflecting sheet.
In addition, light-reflecting components are arranged in the gap of whole solar battery strings in above-mentioned each embodiment, but
It is that can also be provided only in the gap of a part.That is, can also have the not set light-reflecting components between solar energy monocell
The case where.
In addition, the gap in solar battery string is arranged in light-reflecting components in above-mentioned each embodiment, but
Other than the gap in solar battery string, incident light, which can be set, cannot be used for the region of power generation.For example, it is also possible to by light
Reflection component is arranged in the light receiving side of solar energy monocell, light-receiving surface with line piece.Specifically, in line piece
, the light receiving side with line piece being connect with the light receiving side of solar energy monocell, be arranged light-reflecting components.It is preferred that in solar energy
The face side filling component of battery component is comprising applying above-mentioned structure in the case where ethylene vinyl acetate.Line piece is being matched in setting
Light-receiving surface on light-reflecting components, connect across acid resistance layer with face side filling component.At this point, the concave-convex of reflection layer
Shape is preferably that multiple protrusions that the extending direction that line piece is matched on edge is formed and multiple recess portions are intersecting with the extending direction with line piece
It repeats to configure on direction.
In addition, the semiconductor substrate of solar energy monocell is n-type semiconductor substrate in above-mentioned each embodiment, but
It is that semiconductor substrate is also possible to p-type semiconductor substrate.
In addition, the semiconductor material of the photoelectric conversion part of solar energy monocell is silicon in above-mentioned each embodiment, but
It is that it's not limited to that.The semiconductor material of photoelectric conversion part as solar energy monocell, also can be used GaAs
(GaAs) or indium phosphide (InP) etc..
In addition to this, to embodiment implement mode obtained from the various modifications that those skilled in the art expect and
Without departing from the scope of spirit of the present invention by embodiment constituent element and function arbitrarily combines and the side that realizes
Formula is also included in the present invention.
Description of symbols
1 solar cell module
10 solar energy monocells
10S solar battery string
20 match line piece
30 light-reflecting components
31 substrate layers
32 reflection layers
33 acid resistance layers
40 front protecting components
50 back-protective components
60 filling components
61 face side filling components (filling component)
62 back side filling components (filling component).
Claims (12)
1. a kind of solar cell module characterized by comprising
Solar energy monocell；
Filling component comprising ethylene vinyl acetate；
Reflection layer, by from the end of the solar energy monocell stretch out in a manner of be arranged, by the solar energy monocell with
Filling component clips；With
The acid resistance layer of the reflection layer is laminated between the filling component and the reflection layer.
2. solar cell module as described in claim 1, it is characterised in that:
The acid resistance layer, the solubility that acetic acid is dissolved in compared with the reflection layer is lower, or with the filling component phase
It is more lower than the permeability of acetic acid.
3. solar cell module as claimed in claim 1 or 2, it is characterised in that:
The acid resistance layer is the inorganic optical for inhibiting the acetic acid from ethylene vinyl acetate to contact with the reflection layer
Layer, metal layer, resin layer.
4. solar cell module according to any one of claims 1 to 3, it is characterised in that:
The surface of the reflection layer has the triangular groove shape formed in the direction of the end along the solar energy monocell
Repetitive structure.
5. a kind of solar cell module characterized by comprising
Solar battery string comprising by multiple solar energy monocells with line piece electrical connection；
Filling component comprising ethylene vinyl acetate；
Reflection layer, with it is described with the nonoverlapping position of line piece by from the end of the solar energy monocell stretch out in a manner of
Setting, is clipped by the solar energy monocell and the filling component；With
The acid resistance layer of the reflection layer is laminated between the filling component and the reflection layer.
6. solar cell module as claimed in claim 5, it is characterised in that:
The solar battery string be provided with it is multiple,
The reflection layer is adjacent to extend to from a solar energy monocell in the adjacent solar battery string
The solar battery string in the mode of another solar energy monocell be arranged.
7. such as solar cell module described in claim 5 or 6, it is characterised in that:
The surface of the reflection layer has shape on the direction intersected in the orientation of the adjacent solar battery string
At triangular groove shape repetitive structure.
8. solar cell module as claimed in claim 7, which is characterized in that further include:
It is set to the front protecting component of the face side of the solar energy monocell；With
It is set to the back-protective component of the back side of the solar energy monocell,
The filling component include: the solar energy monocell face side setting the solar energy monocell and it is described just
Face side filling component between the guard block of face；It is arranged with the back side in the solar energy monocell in the solar energy list
Back side filling component between battery and the back-protective component,
The reflection layer is configured to, and is reflected by the light that the reflection layer reflects at the interface of the front protecting component, quilt
It guides to the solar energy monocell.
9. a kind of solar cell module characterized by comprising
Solar energy monocell；
Filling component comprising ethylene vinyl acetate；
The reflection layer being arranged in a manner of being covered by the filling component；With
The acid resistance layer of the reflection layer is laminated between the filling component and the reflection layer.
10. solar cell module as claimed in claim 9, it is characterised in that:
It further include being connect with the light receiving side of the solar energy monocell with line piece,
The light receiving side with line piece is arranged in the reflection layer,
The light receiving side of the reflection layer is arranged in the acid resistance layer.
11. solar cell module as claimed in claim 10, it is characterised in that:
The acid resistance layer, the solubility that acetic acid is dissolved in compared with the reflection layer is lower, or with the filling component phase
It is more lower than the permeability of acetic acid.
12. solar cell module as described in claim 10 or 11, it is characterised in that:
The repetitive structure for the triangular groove shape that there is the extending direction along described with line piece to be formed in the front of the reflection layer.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016192317 | 2016-09-29 | ||
| JP2016-192317 | 2016-09-29 | ||
| PCT/JP2017/033192 WO2018061789A1 (en) | 2016-09-29 | 2017-09-14 | Solar cell module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109716537A true CN109716537A (en) | 2019-05-03 |
Family
ID=61760630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780057934.0A Pending CN109716537A (en) | 2016-09-29 | 2017-09-14 | Solar cell module |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6731660B2 (en) |
| CN (1) | CN109716537A (en) |
| WO (1) | WO2018061789A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111446322B (en) * | 2020-03-25 | 2024-07-26 | 常州亚玛顿股份有限公司 | High-power component without hot spot effect |
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| US20040035460A1 (en) * | 2002-06-12 | 2004-02-26 | Gonsiorawski Ronald C. | Photovoltaic module with light reflecting backskin |
| CN1779993A (en) * | 2004-11-24 | 2006-05-31 | 三洋电机株式会社 | Solar cell module |
| JP2011003855A (en) * | 2009-06-22 | 2011-01-06 | Toppan Printing Co Ltd | Reflecting protective sheet, and semiconductor power generation device including the same |
| JP2012023122A (en) * | 2010-07-13 | 2012-02-02 | Toppan Printing Co Ltd | Backside protective sheet for solar battery module and solar battery module |
| JP2013004948A (en) * | 2011-06-22 | 2013-01-07 | Toray Ind Inc | Solar cell module |
| CN105977328A (en) * | 2015-03-13 | 2016-09-28 | 松下知识产权经营株式会社 | Solar cell module |
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| CN102318081A (en) * | 2009-02-13 | 2012-01-11 | 应用材料公司 | Low converging property flat distribution photovoltaic module |
| JP5540738B2 (en) * | 2010-01-29 | 2014-07-02 | 凸版印刷株式会社 | Insulating substrate for solar cell, solar cell module, and method for manufacturing solar cell insulating substrate |
| JP2011158751A (en) * | 2010-02-02 | 2011-08-18 | Konica Minolta Opto Inc | Film mirror, method of manufacturing the same, and reflecting device for solar power generation using the same |
| KR101890324B1 (en) * | 2012-06-22 | 2018-09-28 | 엘지전자 주식회사 | Solar cell module and ribbon assembly |
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2017
- 2017-09-14 CN CN201780057934.0A patent/CN109716537A/en active Pending
- 2017-09-14 WO PCT/JP2017/033192 patent/WO2018061789A1/en active Application Filing
- 2017-09-14 JP JP2018542373A patent/JP6731660B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040035460A1 (en) * | 2002-06-12 | 2004-02-26 | Gonsiorawski Ronald C. | Photovoltaic module with light reflecting backskin |
| CN1779993A (en) * | 2004-11-24 | 2006-05-31 | 三洋电机株式会社 | Solar cell module |
| JP2011003855A (en) * | 2009-06-22 | 2011-01-06 | Toppan Printing Co Ltd | Reflecting protective sheet, and semiconductor power generation device including the same |
| JP2012023122A (en) * | 2010-07-13 | 2012-02-02 | Toppan Printing Co Ltd | Backside protective sheet for solar battery module and solar battery module |
| JP2013004948A (en) * | 2011-06-22 | 2013-01-07 | Toray Ind Inc | Solar cell module |
| CN105977328A (en) * | 2015-03-13 | 2016-09-28 | 松下知识产权经营株式会社 | Solar cell module |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018061789A1 (en) | 2018-04-05 |
| JPWO2018061789A1 (en) | 2019-04-04 |
| JP6731660B2 (en) | 2020-07-29 |
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