CN103595343A - Anti-dazzle solar cell assembly and preparation technology thereof - Google Patents
Anti-dazzle solar cell assembly and preparation technology thereof Download PDFInfo
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- CN103595343A CN103595343A CN201310180464.0A CN201310180464A CN103595343A CN 103595343 A CN103595343 A CN 103595343A CN 201310180464 A CN201310180464 A CN 201310180464A CN 103595343 A CN103595343 A CN 103595343A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses an anti-dazzle solar cell assembly and solves problems of large integral mass, inconvenient mounting, easily-generated dazzling, light pollution and reduced assembly power existing in a solar cell assembly in the prior art. The anti-dazzle solar cell assembly comprises an ETFE front board arranged at a top layer and a glass back board arranged at a bottom layer, wherein solar cells are arranged between the ETFE front board and the glass back board, various solar cells are connected in series to form cell series through welding belts, various cell series are connected through bus bars to form a solar cell matrix, hot melting adhesive layers are arranged between the ETFE front board and the solar cells, and between the solar cells and the glass back board, a surface of the ETFE front board is provided with scattering grooves, and the scattering grooves are crossed vertically and transversely to form a grid structure. The anti-dazzle solar cell assembly has advantages of light integral mass, reduced dazzling effects, reduced light pollution and high conversion efficiency. The invention further discloses a preparation technology thereof. The preparation technology thereof has advantages of simple steps and low cost.
Description
Technical field
The present invention relates to a kind of solar module, especially relate to a kind of anti-dazzle solar module and preparation technology thereof.
Background technology
At present, conventional double glazing solar module consists of glass front plate, hot melt adhesive film, solar battery sheet, conducting copper belt, hot melt adhesive film, backboard from top to bottom successively, this traditional double glazing solar components can be widely used in BIPV, as building structure such as sunshading top, curtain wall, skylights, guaranteeing that the while attractive in appearance and cost-effective can be again building itself electric power is provided.But on being used, conventional double glazing solar module found some problems: what 1, because conventional double glazing solar module is positive, adopt is plate glass, light has part and directly reflects away in assembly front, affect the absorption of light, cause component power loss; 2, because conventional double glazing solar module tow sides are all that plate glass forms, the glass front plate on surface can form mirror-reflection, thereby makes solar module in use can produce glare effect and light pollution; 3, conventional double glazing solar module is because header board and backboard are all that glass forms, so the quality of monoblock unit is larger, has difficulties installing; 4, the impurity particle such as easy adhesive dust of glass front plate, affects luminous flux.
Application publication number CN102569459A, the Chinese patent of Shen Qing Publication day 2012.7.11 discloses a kind of anti-glare crystalline silicon photovoltaic component, comprise the anti-dazzle toughened glass that is arranged on top layer and the backing that is arranged on bottom, between described anti-dazzle toughened glass and backing, be provided with EVA glued membrane, in the middle of EVA glued membrane, be provided with crystal silicon solar cell sheet, described crystal silicon solar cell sheet is connected in series by conducting copper belt, and adopts between string and string interconnecting strip and lead-out wire and be arranged on outside terminal box and be connected.The anti-dazzle principle of this anti-glare crystalline silicon photovoltaic component is, on the toughened glass surface of top layer, decorative pattern is set, this decorative pattern is inverted pyramid hexagon, for concave structure, be hexagon square arrangement, its skin-material namely header board is still toughened glass, make the quality of monoblock unit larger, cause monoblock unit to install very difficult; Secondly, the hexagonal processing patterns of inverted pyramid on glass is very difficult, and processing cost is very high, and this dazzle Crystalline Silicon PV Module is for preventing dust stratification, the order number of decorative pattern is defined as 32 orders, between decorative pattern and decorative pattern, is spaced apart 0.12mm, and this has further increased difficulty of processing.
Summary of the invention
The present invention is large in order to solve the solar module total quality of prior art, inconvenience is installed, easily produce dazzle and light pollution, the problem that can reduce component power, provides a kind of simple in structure, and total quality is light, can reduce the reflected intensity of solar module surface reflection light, reduce glare effect, reduce light pollution, the anti-dazzle solar module that conversion efficiency is high.
The present invention also provides a kind of preparation technology of anti-dazzle solar module, and this step of preparation process is simple, and cost is low.
To achieve these goals, the present invention is by the following technical solutions:
A kind of anti-dazzle solar module, comprise the ETFE header board that is arranged on top layer and the glass back plate that is arranged on bottom, between described ETFE header board and glass back plate, be provided with solar battery sheet, each row solar battery sheet is by welding battery strings in series, between battery strings, by busbar, be connected and form solar cell matrix, between described ETFE header board and solar battery sheet, solar battery sheet and glass back plate, be equipped with hot melt adhesive layer, described ETFE front plane surface is provided with scattering groove, and described scattering groove intersects in length and breadth and is network.Header board in the present invention adopts ETFE material to make, ETFE material is very light, the weight of ETFE material is approximately only one of the percentage of the ultrawhite tempered glass quality of same volume, secondly, ETFE material light transmittance is high, the ultraviolet cut-on wavelength of ultrawhite toughened glass is generally 380nm, light transmittance is 90 ~ 92%, and the light transmittance of ETFE material is 95 ~ 97%, ultraviolet cut-on wavelength is generally 300nm, therefore, ETFE material has better light transmittance and lower ultraviolet cut-on wavelength with respect to ultrawhite toughened glass, under similarity condition, can see through more luminous energy, make cell piece be subject to light more, can improve the conversion efficiency of battery, and, ETFE material surface atresia is smooth, dust, the dirt such as rainwater and snow can not accumulate, what is more important, bond strength between ETFE material and hot melt adhesive layer is high, be difficult for throwing off, in the present invention, the surface of ETFE header board is provided with in length and breadth to intersect and is the scattering groove of network, scattering groove can make the light generation diffuse reflection of reflection, thereby glare effect and light pollution have been eliminated, the groove of scattering simultaneously can also make the part light of reflection that refraction occurs and again enter battery, thereby improve the transfer ratio of battery, the most important thing is, scattering groove can play the effect of cushion chamber, when ETFE header board moment is subject to larger External Force Acting (as suffering hail strike etc.), on ETFE header board, the ETFE material at stressed place can produce deformation (depression) to surrounding extruding, and scattering groove can effectively disperse the suffered active force of ETFE header board, effectively avoid ETFE header board to cave in.
As preferably, described scattering slot cross-section takes the shape of the letter U.
As preferably, the width of described scattering groove is 0.5 ~ 1mm, and the degree of depth is 0.2 ~ 0.4mm, between adjacent scattering groove, is spaced apart 2 ~ 4mm.Interval between scattering well width, the degree of depth and adjacent scattering groove is excessive or too small, all can affect result of use, anti-dazzle weak effect namely, and the interval too small between the well width of scattering simultaneously, the degree of depth and adjacent scattering groove, is also unfavorable for the setting of scattering groove.
As preferably, before described ETFE, plate thickness is 3 ~ 5mm.Because ETFE header board is positioned at top layer, thickness is too thin, structural strength is inadequate, under the effect that is subject to external force, easily causing the silicon chip of its lower floor to cause breaks, cross thin thickness simultaneously and be also unfavorable for the setting of astigmatic groove, and when lamination, very easily there is fold and displacement, and before ETFE, plate thickness is excessive, cost rises.
As preferably, described hot melt adhesive layer is EVA layer.
A preparation technology for anti-dazzle solar module, comprises the following steps:
(a) solar battery sheet is passed through to the soldered formation battery strings of welding, then will be by the soldered formation solar cell of busbar matrix between battery strings, busbar is drawn positive and negative electrode.Welding, busbar are generally copper strips, first cell piece is carried out to front welding, carry out again back serial connection and make same row cell piece battery strings in series, cell piece quantity can be adjusted according to actual needs, battery strings can be carried out serial or parallel connection by busbar according to the actual requirements, positive welding, back serial connection are the conventional steps of the art, therefore do not repeat at this.
(b) grid cloth, ETFE header board, hot melt adhesive layer, solar cell matrix, hot melt adhesive layer, glass back plate are laid according to order from top to bottom.
(c) assembly laying is put into laminating machine and carry out lamination.During lamination, ETFE header board is subject to thermal softening, grid cloth can embed ETFE header board, play the effect of punch, grid cloth also has the effect of sizing simultaneously, while preventing lamination, ETFE header board produces fold and displacement, before ETFE in the present invention, plate thickness reaches 3 ~ 5mm, thickness is thicker, in lamination process, ETFE front plane surface can produce fold, therefore be applied to now on solar module is all the ETFE film of thickness below 0.3mm, and grid cloth can embed ETFE front plane surface when lamination, just in time play the effect of skeleton and template, suppressing ETFE front plane surface produces fold and is subjected to displacement, efficiently solve ETFE front plane surface in lamination process and can produce the problem of fold and displacement.
(d) assembly after lamination cooling, solidify after, take grid cloth off, in ETFE front plane surface, form to intersect in length and breadth and be the scattering groove of network, finally assembly is loaded onto to frame, positive and negative electrode thereto by reserving, obtains anti-dazzle solar module.The cooling rear grid cloth of directly taking off just forms scattering groove in ETFE front plane surface, and operating procedure is very simple.
As preferably, the mesh size of grid cloth is 2 * 2 ~ 4 * 4mm, and on grid cloth, the width of netting twine is 0.5 ~ 1mm, and on grid cloth, the thickness of netting twine is 0.2 ~ 0.4mm.After lamination, the size of mesh is the interval between adjacent scattering groove, and on grid cloth, the width of netting twine is the width of scattering groove, and on grid cloth, the thickness of netting twine is the degree of depth of scattering groove.
As preferably, before described ETFE, plate thickness is 3 ~ 5mm.
As preferably, the process conditions of lamination are: laminating temperature is 135 ~ 150 ℃, and the lamination time is 15 ~ 30min.
Therefore, the present invention has following beneficial effect:
(1) header board adopts ETFE material to make, and light weight has reduced the overall weight of solar module, is convenient to install, and has better light transmittance, makes cell piece be subject to light more, can improve the conversion efficiency of battery, and surface is also difficult for accumulating dirt;
(2) ETFE front plane surface is provided with scattering groove, can make the light generation diffuse reflection of reflection, thereby glare effect and light pollution have been eliminated, the groove of scattering simultaneously can also make the part light of reflection that refraction occurs and again enter battery, thereby improve the transfer ratio of battery, reduce the power loss of solar module;
(3) scattering groove can play the effect of cushion chamber, can effectively disperse the suffered active force of ETFE header board, effectively avoids ETFE header board to cave in;
(4) scattering groove is compressing by grid cloth in lamination process, and processing step is very simple, and cost is low.
Accompanying drawing explanation
Fig. 1 is a kind of vertical view of ETFE header board in the present invention.
Fig. 2 is a kind of profile of the present invention.
In figure: ETFE header board 1, hot melt adhesive layer 2, solar battery sheet 3, glass back plate 4, welding 5, busbar 6, scattering groove 7.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
In the present invention, all devices and raw material all can be buied from market or the industry is conventional, and wherein, ETFE header board is purchased from Fu Rong macromolecular material Co., Ltd, and model is ETFE25C.Method in following embodiment, if no special instructions, is this area conventional method.
Embodiment 1
A kind of anti-dazzle solar module, comprise and be arranged on top layer, thickness is the ETFE header board 1 of 3mm and the glass back plate 4 that is arranged on bottom, between ETFE header board and glass back plate, be provided with solar battery sheet 3, each row solar battery sheet is by welding 5 battery strings in series, between battery strings, by busbar 6, be connected and form solar cell matrix, ETFE header board and solar battery sheet, between solar battery sheet and glass back plate, be equipped with hot melt adhesive layer 2, hot melt adhesive layer is EVA layer, ETFE front plane surface has the scattering groove 7 that cross section takes the shape of the letter U, the width of scattering groove is 0.5mm, the degree of depth is 0.2mm, between adjacent scattering groove, be spaced apart 2mm, scattering groove intersects in length and breadth and is network.
A preparation technology for anti-dazzle solar module, comprises the following steps:
(a) solar battery sheet of having classified according to performance parameter is passed through to the soldered formation battery strings of welding according to requirements, then will be by the soldered formation solar cell of busbar matrix between battery strings, busbar is drawn positive and negative electrode.
(b) grid cloth, ETFE header board, hot melt adhesive layer, solar cell matrix, hot melt adhesive layer, glass back plate are laid according to order from top to bottom, wherein the mesh size of grid cloth is 2 * 2mm, on grid cloth, the width of netting twine is 0.5mm, and on grid cloth, the thickness of netting twine is 0.2mm.
(c) assembly laying is put into laminating machine and carry out lamination, laminating temperature is 135 ℃, and the lamination time is 15min.
(d) assembly after lamination cooling, solidify after, take grid cloth off, ETFE front plane surface forms to intersect in length and breadth and is the scattering groove (see figure 1) of network, finally assembly is loaded onto to frame, by the positive and negative electrode thereto reserving, obtain anti-dazzle solar module (see figure 2).
Comparative example 1
In this comparative example, the structure of anti-dazzle solar module and preparation technology compare with embodiment 1, and difference is to replace ETFE header board with ultrawhite toughened glass, and all the other are identical.
Embodiment 2
A kind of anti-dazzle solar module, comprise and be arranged on top layer, thickness is the ETFE header board 1 of 4mm and the glass back plate 4 that is arranged on bottom, between ETFE header board and glass back plate, be provided with solar battery sheet 3, each row solar battery sheet is by welding 5 battery strings in series, between battery strings, by busbar 6, be connected and form solar cell matrix, ETFE header board and solar battery sheet, between solar battery sheet and glass back plate, be equipped with hot melt adhesive layer 2, hot melt adhesive layer is EVA layer, ETFE front plane surface has the scattering groove 7 that cross section takes the shape of the letter U, the width of scattering groove is 0.7mm, the degree of depth is 0.3mm, between adjacent scattering groove, be spaced apart 3mm, scattering groove intersects in length and breadth and is network.
A preparation technology for anti-dazzle solar module, comprises the following steps:
(a) solar battery sheet of having classified according to performance parameter is passed through to the soldered formation battery strings of welding according to requirements, then will be by the soldered formation solar cell of busbar matrix between battery strings, busbar is drawn positive and negative electrode.
(b) grid cloth, ETFE header board, hot melt adhesive layer, solar cell matrix, hot melt adhesive layer, glass back plate are laid according to order from top to bottom, wherein the mesh size of grid cloth is 3 * 3mm, on grid cloth, the width of netting twine is 0.7mm, and on grid cloth, the thickness of netting twine is 0.3mm.
(c) assembly laying is put into laminating machine and carry out lamination, laminating temperature is 140 ℃, and the lamination time is 25min.
(d) assembly after lamination cooling, solidify after, take grid cloth off, ETFE front plane surface forms to intersect in length and breadth and is the scattering groove (see figure 1) of network, finally assembly is loaded onto to frame, by the positive and negative electrode thereto reserving, obtain anti-dazzle solar module (see figure 2).
Comparative example 2
In this comparative example, the structure of anti-dazzle solar module and preparation technology compare with embodiment 2, and difference is to replace ETFE header board with ultrawhite toughened glass, and all the other are identical.
Embodiment 3
A kind of anti-dazzle solar module, comprise and be arranged on top layer, thickness is the ETFE header board 1 of 5mm and the glass back plate 4 that is arranged on bottom, between ETFE header board and glass back plate, be provided with solar battery sheet 3, each row solar battery sheet is by welding 5 battery strings in series, between battery strings, by busbar 6, be connected and form solar cell matrix, ETFE header board and solar battery sheet, between solar battery sheet and glass back plate, be equipped with hot melt adhesive layer 2, hot melt adhesive layer is EVA layer, ETFE front plane surface has the scattering groove 7 that cross section takes the shape of the letter U, the width of scattering groove is 1mm, the degree of depth is 0.4mm, between adjacent scattering groove, be spaced apart 4mm, scattering groove intersects in length and breadth and is network.
A preparation technology for anti-dazzle solar module, comprises the following steps:
(a) solar battery sheet of having classified according to performance parameter is passed through to the soldered formation battery strings of welding according to requirements, then will be by the soldered formation solar cell of busbar matrix between battery strings, busbar is drawn positive and negative electrode.
(b) grid cloth, ETFE header board, hot melt adhesive layer, solar cell matrix, hot melt adhesive layer, glass back plate are laid according to order from top to bottom, wherein the mesh size of grid cloth is 4 * 4mm, on grid cloth, the width of netting twine is 1mm, and on grid cloth, the thickness of netting twine is 0.4mm.
(c) assembly laying is put into laminating machine and carry out lamination, laminating temperature is 150 ℃, and the lamination time is 30min.
(d) assembly after lamination cooling, solidify after, take grid cloth off, ETFE front plane surface forms to intersect in length and breadth and is the scattering groove (see figure 1) of network, finally assembly is loaded onto to frame, by the positive and negative electrode thereto reserving, obtain anti-dazzle solar module (see figure 2).
Comparative example 3
In this comparative example, the structure of anti-dazzle solar module and preparation technology compare with embodiment 3, and difference is to replace ETFE header board with ultrawhite toughened glass, and all the other are identical.
The anti-dazzle solar module that each embodiment and comparative example are obtained carries out header board light transmittance and power test, and the result obtaining is as shown in table 1, wherein, and component power loss (%)=(theoretical power (horse-power)-actual power)/theoretical power (horse-power) * 100%.
The anti-dazzle solar module header board light transmittance of each embodiment of table 1 and comparative example and component power loss
| Project | Header board light transmittance (%) | Component power loss (%) |
| Embodiment 1 | 96.2 | 3.4 |
| Comparative example 1 | 90.8 | 4.5 |
| Embodiment 2 | 95.8 | 3.5 |
| Comparative example 2 | 91.1 | 5 |
| Embodiment 3 | 97.1 | 3.1 |
| Comparative example 3 | 90.2 | 5.1 |
From table 1, can obviously find out, anti-dazzle solar module header board light transmittance of the present invention is higher, and assembly wasted power is low, so the present invention has higher power output, and the conversion efficiency of battery is high.
Above-described embodiment is a kind of preferably scheme of the present invention, not the present invention is done to any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim records.
Claims (9)
1. an anti-dazzle solar module, it is characterized in that, comprise the ETFE header board (1) that is arranged on top layer and the glass back plate (4) that is arranged on bottom, between described ETFE header board and glass back plate, be provided with solar battery sheet (3), each row solar battery sheet is by welding (5) battery strings in series, between battery strings, by busbar (6), be connected and form solar cell matrix, described ETFE header board and solar battery sheet, between solar battery sheet and glass back plate, be equipped with hot melt adhesive layer (2), described ETFE front plane surface is provided with scattering groove (7), described scattering groove intersects in length and breadth and is network.
2. a kind of anti-dazzle solar module according to claim 1, is characterized in that, described scattering slot cross-section takes the shape of the letter U.
3. a kind of anti-dazzle solar module according to claim 2, is characterized in that, the width of described scattering groove is 0.5 ~ 1mm, and the degree of depth is 0.2 ~ 0.4mm, between adjacent scattering groove, is spaced apart 2 ~ 4mm.
4. a kind of anti-dazzle solar module according to claim 1, is characterized in that, before described ETFE, plate thickness is 3 ~ 5mm.
5. a kind of anti-dazzle solar module according to claim 1, is characterized in that, described hot melt adhesive layer is EVA layer.
6. a preparation technology for anti-dazzle solar module as claimed in claim 1, is characterized in that, comprises the following steps:
(a) solar battery sheet is passed through to the soldered formation battery strings of welding, then will be by the soldered formation solar cell of busbar matrix between battery strings, busbar is drawn positive and negative electrode;
(b) grid cloth, ETFE header board, hot melt adhesive layer, solar cell matrix, hot melt adhesive layer, glass back plate are laid according to order from top to bottom;
(c) assembly laying is put into laminating machine and carry out lamination;
(d) assembly after lamination cooling, solidify after, take grid cloth off, in ETFE front plane surface, form to intersect in length and breadth and be the scattering groove of network, finally assembly is loaded onto to frame, positive and negative electrode thereto by reserving, obtains anti-dazzle solar module.
7. preparation technology according to claim 6, is characterized in that, the mesh size of grid cloth is 2 * 2 ~ 4 * 4mm, and on grid cloth, the width of netting twine is 0.5 ~ 1mm, and on grid cloth, the thickness of netting twine is 0.2 ~ 0.4mm.
8. preparation technology according to claim 6, is characterized in that, before described ETFE, plate thickness is 3 ~ 5mm.
9. preparation technology according to claim 6, is characterized in that, the process conditions of lamination are: laminating temperature is 135 ~ 150 ℃, and the lamination time is 15 ~ 30min.
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| CN104319314A (en) * | 2014-10-28 | 2015-01-28 | 云飞 | Preparing technology of photovoltaic cell |
| CN110350049A (en) * | 2019-07-24 | 2019-10-18 | 东莞南玻太阳能玻璃有限公司 | A kind of anti-dazzle solar cell module cover-plate glass |
| CN111883599A (en) * | 2020-07-28 | 2020-11-03 | 光能动力(北京)科技有限责任公司 | Surface grain structure of automotive solar module and preparation method thereof |
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| CN110350049A (en) * | 2019-07-24 | 2019-10-18 | 东莞南玻太阳能玻璃有限公司 | A kind of anti-dazzle solar cell module cover-plate glass |
| CN110350049B (en) * | 2019-07-24 | 2024-02-02 | 东莞南玻太阳能玻璃有限公司 | Anti-dazzle solar module cover plate glass |
| CN111883599A (en) * | 2020-07-28 | 2020-11-03 | 光能动力(北京)科技有限责任公司 | Surface grain structure of automotive solar module and preparation method thereof |
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| CN103595343B (en) | 2015-09-16 |
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