CN102315293A - Solar photovoltaic module package laminated layer structure and making method thereof - Google Patents
Solar photovoltaic module package laminated layer structure and making method thereof Download PDFInfo
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- CN102315293A CN102315293A CN2010102221617A CN201010222161A CN102315293A CN 102315293 A CN102315293 A CN 102315293A CN 2010102221617 A CN2010102221617 A CN 2010102221617A CN 201010222161 A CN201010222161 A CN 201010222161A CN 102315293 A CN102315293 A CN 102315293A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a solar photovoltaic module package laminated layer structure and a making method thereof. The solar photovoltaic module package laminated layer structure comprises a laminated layer structure provided with a plurality of solar cells; the laminated layer structure is provided with a plurality of laminated layer interfaces; the solar photovoltaic module package laminated layer structure is characterized by also comprising at least one laminated layer embossing structure, wherein the laminated layer embossing structure is continuously formed in at least one of the laminated layer interfaces from one surface of the laminated layer structure and positioned among the solar cells. Therefore, the solar photovoltaic module package laminated layer structure has flexibility and a light scattering effect.
Description
Technical field
The present invention relates to a kind of solar photoelectric module encapsulation technology, and particularly relate to a kind of solar photoelectric module encapsulation laminated construction and manufacturing approach thereof.
Background technology
Solar energy is a kind of pollution-free and inexhaustible energy, therefore when experience pollution that fossil energy faced and problem of shortage, how effectively to utilize solar energy source to become the focus that attracts most attention.Wherein, because of solar cell (solar cell) can be an electric energy with solar energy converting directly, and become the development priority of present utilization solar energy source.
Tradition solar photoelectric module encapsulation laminated construction is as shown in Figure 1, comprises glass (glass) 100, viscose glue 102, solar cell 104, viscose glue 106 and backboard (backsheet) 108.Glass and the similar sandwich interlayer of solar cell mode in this kind encapsulation laminated construction are formed with the viscose glue gummed, constitute the structure of solar module.Though such encapsulation laminated construction has the module high-strength characteristic, can't reach the bendable solar module that caters to curved design.Therefore, industry focuses on that mostly battery design is made, the substrate when battery is made is selected for use, backboard designs the configuration design or the module package laminated construction of battery at present.
Yet, no matter be with traditional silicon wafer battery do slim design, with cell substrates area microminiaturization or utilize the connector of the backboard of module back layer as flexible, the not good problem of fabrication and processing difficulty or intensity is all arranged.In addition; In U.S. Pat 5; 538; 902 propose a kind of the silicon wafer solar cell to be attached on the flexible base plate, and directly on flexible base plate, silicon wafer solar cell cutting and separating are become the device of a plurality of solar cells, but the method for this cutting silicon wafer solar cell is not taken the overall package manufacture craft into account.
Summary of the invention
The object of the present invention is to provide a kind of solar photoelectric module encapsulation laminated construction, have the uneven pliability of module mechanical strength, can reach the light benefit simultaneously and catch effect, can hoisting module power.
Another purpose of the present invention is to provide a kind of manufacturing approach of solar photoelectric module encapsulation laminated construction, but simpler production goes out pliability and reach the light benefit to catch the encapsulation laminated construction of effect.
For reaching above-mentioned purpose, the present invention proposes a kind of solar photoelectric module encapsulation laminated construction, comprises a laminated construction that includes several solar cells, has several lamination interfaces in this laminated construction.And solar photoelectric module encapsulation laminated construction is characterised in that above-mentioned laminated construction also comprises at least one lamination patterned structure; Wherein the lamination patterned structure is to be formed in the lamination interface of same position at least one continuously from a surface of above-mentioned laminated construction; And lamination patterned structure position causes solar photoelectric module encapsulation laminated construction to have the effect of flexible characteristic and light scattering between solar cell.
In one embodiment of this invention, said lamination patterned structure is serrated surface or is curvature structure.
In one embodiment of this invention, said laminated construction comprises a strengthening layer, and its rigidity is greater than the rigidity of each solar cell, and strengthening layer is discontinuous structure at lamination patterned structure place.
In one embodiment of this invention, said laminated construction comprise a backboard of a printing opacity cladding plate, relatively printing opacity cladding plate configuration, between the solar cell between printing opacity cladding plate and the backboard, between one first encapsulated layer between printing opacity cladding plate and the solar cell and one second encapsulated layer between backboard and solar cell.
In one embodiment of this invention, said printing opacity cladding plate or backboard are a strengthening layer, and its rigidity is greater than the rigidity of each solar cell, and strengthening layer is discontinuous structure at lamination patterned structure place.
In one embodiment of this invention; Said solar photoelectric module encapsulation laminated construction more comprises a strengthening layer and one the 3rd encapsulated layer between strengthening layer and solar cell between this first encapsulated layer and solar cell; Wherein the rigidity of above-mentioned strengthening layer is greater than the rigidity of each solar cell, and strengthening layer is discontinuous structure at lamination patterned structure place.
In one embodiment of this invention; Said solar photoelectric module encapsulation laminated construction more comprises between strengthening layer between second encapsulated layer and the solar cell and one the 4th encapsulated layer between strengthening layer and solar cell; Wherein the rigidity of above-mentioned strengthening layer is greater than the rigidity of each solar cell, and strengthening layer is discontinuous structure at lamination patterned structure place.
In one embodiment of this invention, said solar photoelectric module encapsulation laminated construction also can comprise at least one color layer, between printing opacity cladding plate and backboard.
In one embodiment of this invention, said backboard or printing opacity cladding plate are color layer.
The present invention proposes a kind of manufacturing approach of solar photoelectric module encapsulation laminated construction in addition, comprises that pressing includes a laminated construction of several solar cells, and has several lamination interfaces in this laminated construction.In this manufacturing approach; During above-mentioned pressing; The surface texture transfer printing that adds mould from a surface by utilizing one of laminated construction causes at least one lamination patterned structure; Wherein the lamination patterned structure is to be formed in the lamination interface of same position at least one between the solar cell from above-mentioned surface continuously, to cause laminated construction to have the effect of flexible characteristic and light scattering.
In another embodiment of the present invention, said laminated construction comprises a backboard of a printing opacity cladding plate, relatively printing opacity cladding plate configuration, between the solar cell between printing opacity cladding plate and the backboard, between one first encapsulated layer between printing opacity cladding plate and the solar cell and one second encapsulated layer between backboard and solar cell.Wherein, said printing opacity cladding plate or backboard can be strengthening layers, and its rigidity is greater than the rigidity of each solar cell.
In another embodiment of the present invention; Said laminated construction also comprises a strengthening layer and one the 3rd encapsulated layer between strengthening layer and solar cell between this first encapsulated layer and solar cell, and wherein the rigidity of above-mentioned strengthening layer is greater than the rigidity of each solar cell.
In another embodiment of the present invention; Said laminated construction comprises that also wherein the rigidity of above-mentioned strengthening layer is greater than the rigidity of each solar cell between strengthening layer between second encapsulated layer and the solar cell and one the 4th encapsulated layer between strengthening layer and solar cell.
Based on above-mentioned; The present invention utilizes the geometry (texture) of single or a plurality of lamination embossing; Just can make solar photoelectric module encapsulation laminated construction have the effect of uneven flexible characteristic of module mechanical strength and light scattering; Be applied to GENERAL TYPE and light-transmission type solar photoelectric module, possess the advantage of making easily and keeping the high generated output of module simultaneously.In addition, in solar photoelectric module encapsulation laminated construction, add strengthening layer, can make silicon wafer solar photoelectric module encapsulating structure not only have the flexible characteristic, also can protect solar cell itself not to be damaged.
For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and cooperates appended accompanying drawing to elaborate as follows.
Description of drawings
Fig. 1 is the generalized section of existing a kind of light-transmission type solar photoelectric module encapsulation laminated construction;
Fig. 2 is the generalized section according to a kind of solar photoelectric module encapsulation laminated construction of the first embodiment of the present invention;
Fig. 3, Fig. 4 A, Fig. 4 B to Fig. 5 are the generalized sections of other kenels of first embodiment;
Fig. 6 is the generalized section according to a kind of solar photoelectric module encapsulation laminated construction of the second embodiment of the present invention;
Fig. 7 is the generalized section of another kenel of second embodiment;
Fig. 8 A, Fig. 8 B, Fig. 9 A to Fig. 9 B are the generalized sections of other kenels of second embodiment;
Figure 10 A to Figure 10 B is the manufacturing sketch map according to a kind of solar photoelectric module encapsulation laminated construction of the third embodiment of the present invention;
Figure 11 A to Figure 11 B is the manufacturing sketch map according to a kind of solar photoelectric module encapsulation laminated construction of the fourth embodiment of the present invention;
Figure 12 is the encapsulation finished product sketch map of experiment one;
Figure 13 A～Figure 13 C is the sketch map of three kinds of solar photoelectric module encapsulation laminated construction of simulated experiment;
Figure 14 is the sketch that the light-transmission type solar photoelectric module of the no patterned structure of experiment five～experiment eight encapsulates laminated construction;
Figure 15 is the sketch of the solar photoelectric module encapsulation laminated construction with lamination patterned structure of experiment five～experiment eight.
The main element symbol description
100: glass
102,106: viscose glue
104,202,602,1002: solar cell
108,206,1012: backboard
200,600,1000: laminated construction
204,1006: the printing opacity cladding plate
204a, 206a, 604a, 1000a: surface
208,1008: the first encapsulated layers
210,1010: the second encapsulated layers
212a～c, 610a～c, 804～e, 904～e, 1004: lamination interface
214,300,400,500,608,700,802,902,1018,1106: the lamination patterned structure
216: light
604,1100: strengthening layer
800: the three encapsulated layers
806,906: color layer
900: the four encapsulated layers
1014,1102: add mould
1016,1104: surface texture
1200: the encapsulation finished product
Embodiment
Following examples only are to be used for describing application of the present invention in more detail, and accompanying drawing is explained.Yet the present invention also can adopt multiple multi-form the practice, and should it be interpreted as the embodiment that is limited to what follows.In the accompanying drawings, for the purpose of clear and definite, maybe the size and the relative size of each layer be given an exaggerated account, and not draw by dimension scale.
Fig. 2 is the generalized section according to a kind of solar photoelectric module encapsulation laminated construction of the first embodiment of the present invention.
Please with reference to Fig. 2, the solar photoelectric module of first embodiment encapsulation laminated construction comprises a laminated construction 200, and several solar cells 202 are contained in its inside.For instance, laminated construction 200 can comprise a backboard (Backsheet) 206 of a printing opacity cladding plate 204, printing opacity cladding plate 204 configurations relatively, between the solar cell 202 between printing opacity cladding plate 204 and the backboard 206, between one first encapsulated layer 208 between printing opacity cladding plate 204 and the solar cell 202 and one second encapsulated layer 210 between backboard 206 and solar cell 202.Backboard 206 in first embodiment can be light transmissive material or light-proof material, and backboard 206 or this printing opacity cladding plate 204 also can be color layer.In such laminated construction 200, have several lamination interfaces 212a～c, so the present invention is not limited thereto; That is to say that so-called " lamination interface " also can change along with the stacked film number of layers of laminated construction 200 when also containing in addition in the laminated construction 200 when having only single encapsulation material in other structure sheafs or the laminated construction 200.In addition, in first, second encapsulated layer 208 and 210 at least one deck can be color layer, or printing opacity cladding plate 204 and 206 of backboards add color layer.
Please continue with reference to Fig. 2, the laminated construction 200 of first embodiment also comprises at least one lamination patterned structure 214 of position between solar cell 202, and it is serrated surface or curvature structure for example.In context, so-called " lamination patterned structure " is to be formed in the lamination interface of same position at least one continuously from a surface of laminated construction.With Fig. 2 is example, and single lamination patterned structure 214 is all lamination interface 212a～c that are formed on same position from the surperficial 204a of the printing opacity cladding plate 204 of laminated construction 200 continuously.Owing to have lamination patterned structure 214 between the solar cell 202, so the mechanical characteristic of structure 214 thus causes the inhomogeneous of module mechanical strength and produces the flexible characteristic.To lamination interface 212a～c with lamination patterned structure 214; The refractive index of optical interface and environmentally conscious materials (air) need refringence; Just can make how much leaded light designs satisfy lamination patterned structure 214 leaded light paths and reach anaclasis, reflection, scattering purpose, increase the absorption of solar energy.Therefore; When light 216 gets into solar photoelectric module encapsulation laminated construction from printing opacity cladding plate 204; Can satisfy the leaded light path and the light that reaches light harvesting design is mended and caught purpose at the lamination interface 212a～c with lamination patterned structure 214, the luminous energy that satisfies no cell area utilizes function again.
The lamination patterned structure of certain first embodiment can also have other kenels, and like Fig. 3, Fig. 4 A, Fig. 4 B or shown in Figure 5, wherein the components identical symbol is represented same or analogous member in use and Fig. 2.
Fig. 3 is presented at has three lamination patterned structure 300 in twos between the solar cell 202.Fig. 4 A shows that single lamination patterned structure 400 is the lamination interface 212a～b that are formed on same position from the surperficial 204a of the printing opacity cladding plate 204 of laminated construction 200 continuously; Fig. 4 B and Fig. 4 category-A seemingly, but lamination patterned structure 400 is the lamination interface 212a～b that are formed on same position continuously.Fig. 5 shows that single lamination patterned structure 500 is the lamination interface 212a～c that are formed on same position from the surperficial 206a of the backboard 206 of laminated construction 200 continuously.
Fig. 6 is the generalized section according to a kind of solar photoelectric module encapsulation laminated construction of the second embodiment of the present invention.
Please with reference to Fig. 6; The solar photoelectric module encapsulation laminated construction of second embodiment and first embodiment are similar to be a laminated construction 600; The difference of two embodiment is that the laminated construction 600 of second embodiment is except that several solar cells 602 are contained in inside; Also have one deck strengthening layer 604, its rigidity is greater than the rigidity of each solar cell 602.Therefore, when solar cell 602 was the silicon wafer solar cell that possibly when module bends, break, this layer strengthening layer 604 can further be protected solar cell 602.For instance, if laminated construction 600 is identical with Fig. 2, then can the printing opacity cladding plate be replaced with strengthening layer 604, all the other backboards 206, first encapsulated layer 208 and 210 of second encapsulated layers are constant.In addition, because will let solar photoelectric module encapsulation laminated construction produce the flexible characteristic, so strengthening layer 604 must be discontinuous structure at lamination patterned structure 608 places.In Fig. 6, lamination patterned structure 608 is all lamination interface 610a～c that are formed on same position from the surperficial 604a of the strengthening layer 604 of laminated construction 600 continuously.
The lamination patterned structure of certain second embodiment can also have other kenels, like Fig. 7.
Fig. 7 shows is that backboard with laminated construction 600 replaces with strengthening layer 604; All the other printing opacity cladding plates 204, first encapsulated layer 208 and 210 of second encapsulated layers are constant; Therefore though lamination patterned structure 700 also is all lamination interface 610a～c that are formed on same position from the surperficial 604a of the strengthening layer 604 of laminated construction 600 continuously, the embossing direction is different with Fig. 6.
And the modular structure of Fig. 3 to Fig. 7 as stated, and can add one deck color layer (not illustrating) at least, as the color member 206 of printing opacity cladding plate 204 and backboards (Backsheet).
In addition, the lamination patterned structure of second embodiment also has other kenels, and shown in Fig. 8 A, Fig. 8 B, Fig. 9 A, Fig. 9 B, wherein the components identical symbol is represented same or analogous member in use and Fig. 6.
Fig. 8 A adds to add one deck the 3rd encapsulated layer 800 between one deck strengthening layer 604 between first encapsulated layer 208 and the solar cell 602 and between strengthening layer 604 and solar cell 602 in laminated construction 600 in addition, and the 3rd encapsulated layer 800 can be color layer.Thus, lamination patterned structure 802 is all lamination interface 804a～e that are formed on same position from the surperficial 204a of the printing opacity cladding plate 204 of laminated construction 600 continuously, and strengthening layer 604 is discontinuous structure at lamination patterned structure 802 places.
The difference of Fig. 8 B and Fig. 8 A is can add one deck color layer 806 at second encapsulated layer 210 and 800 of the 3rd encapsulated layers.
Fig. 9 A shows then is in laminated construction 600, to add in addition to add one deck the 4th encapsulated layer 900 between one deck strengthening layer 604 between second encapsulated layer 210 and the solar cell 602 and between strengthening layer 604 and solar cell 602, and this one the 4th encapsulated layer 900 can be color layer.And lamination patterned structure 902 is all lamination interface 904a～e that are formed on same position from the surperficial 206a of the backboard 206 of laminated construction 600 continuously, and strengthening layer 604 is discontinuous structure at lamination patterned structure 902 places.
The difference of Fig. 9 B and Fig. 9 A is can add one deck color layer 906 at the 4th encapsulated layer 900 and 208 of first encapsulated layers.
More than the application of first embodiment and second embodiment be not limited to shown in the accompanying drawing, also can change wherein the laminated construction and the kenel of lamination patterned structure.
Figure 10 A to Figure 10 B is the manufacturing sketch map according to a kind of solar photoelectric module encapsulation laminated construction of the third embodiment of the present invention.
Please with reference to Figure 10 A, the method for the 3rd embodiment is pressing one laminated construction 1000, and this laminated construction 1000 includes several solar cells 1002, and in laminated construction 1000, has several lamination interfaces 1004.Can be earlier before pressing printing opacity cladding plate 1006, first encapsulated layer 1008, solar cell 1002, second encapsulated layer 1010 and backboard 1012 etc. be gathered into folds; And prepare one and add mould 1014, the surface texture 1016 that wherein adds mould 1014 for example is to have first power, quadratic power or the serrated surface of approximate curvature surface repeatedly.Above-mentioned laminated construction 1000 also can be complied with required interpolation other materials layer except the rete shown in Figure 10 A.
During pressing; Can be through the encapsulation material of the printing opacity cladding plate in the hot mastication laminated construction 1,000 1006, first encapsulated layer 1008, second encapsulated layer 1010, backboard 1012 and so on, and utilize the above-mentioned surface texture 1016 that adds mould 1014 to cause at least one lamination patterned structure 1018 between solar cell 1002 from the surperficial 1000a transfer printing of laminated construction 1000.Wherein, the material temperature that adds mould 1014 for example is higher than the temperature of pressing step.
Then, please with reference to Figure 10 B, this lamination patterned structure 1018 that obtains after the pressing is to be formed on continuously in the lamination interface 1004 of same position from above-mentioned surperficial 1000a, so that laminated construction 1000 has the effect of flexible characteristic and light scattering.In addition, still can use to have the mould that adds of different surfaces structure, and be not limited to this figure according to required lamination patterned structure (like Fig. 3 to Fig. 5).
Figure 11 A to Figure 11 B is that wherein use and the 3rd embodiment components identical symbol are represented same or analogous member according to the manufacturing sketch map of a kind of solar photoelectric module encapsulation laminated construction of the fourth embodiment of the present invention.
Please with reference to Figure 11 A; When the laminated construction 1000 of the 3rd embodiment contains except that inside when also having one deck strengthening layer 1100 solar cell 1002; The employed surface texture 1104 that adds mould 1102 should be different with the 3rd embodiment in the pressing step; And applied pressure also maybe be bigger during pressing, so that softening strengthening layer 1100 backs cut off the strengthening layer 1100 between the solar cell 1002.Identical among the effect of this layer strengthening layer 1100 and second embodiment, its rigidity is greater than the rigidity of each solar cell 1002, so when solar cell 1002 was the silicon wafer solar cell, this layer strengthening layer 1100 can further be protected solar cell 1002.For instance, if the orlop in the laminated construction 1000 replaces backboard or printing opacity cladding plate with strengthening layer 1100, all the other structures are constant.
Then, please with reference to Figure 11 B, produce the flexible characteristic because will let solar photoelectric module encapsulate laminated construction after the pressing, so strengthening layer 1100 must be discontinuous structure at lamination patterned structure 1106 places.
In addition; If being image pattern 8 or Fig. 9, strengthening layer 1100 is added in equally in addition between first or second encapsulated layer and the solar cell; Then can add one deck the 3rd or the 4th encapsulated layer again between strengthening layer and solar cell, and utilize the mode of the 4th embodiment to carry out pressing, so repeat no more at this.
Below enumerate several experimental results and verify effect of the present invention.
Experiment one: light-transmission type solar photoelectric module encapsulation laminated construction
Prepare a laminated construction (like 1000 among Figure 10 A), comprise ETFE polymer (ETFE)/vinyl-vinyl acetate copolymer (EVA)/solar cell/EVA/ETFE, wherein ETFE thickness is about 50 μ m, and EVA thickness is about 0.4mm.To have the mould that adds that the encapsulation of pressing machine adds the lamination patterned structure then now, it is the semicircle mould of diameter 0.1mm.Pressing machine temperature is made as 150 ℃; In the cavity with chamber on the 40pa vacuum suction and following chamber totally 10 minutes; Then go up the chamber vacuum breaker and carried out module pressing again 10 minutes in 2.5 minutes; Obtain the solar photoelectric module encapsulation laminated construction like Fig. 3, encapsulate finished product 1200 and have about 35 ° flexible angle this moment, and its sketch map is shown in figure 12.Though note that Figure 12 only display surface patterned structure is arranged, but in fact to encapsulate finished product 1200 are laminated construction, and wherein have the lamination patterned structure.
Experiment two: light-transmission type solar photoelectric module encapsulation laminated construction
Carry out and experiment one identical step, but add the semicircle mould that mould changes diameter 3mm into, and obtain the solar photoelectric module encapsulation laminated construction like Fig. 2, encapsulate finished product and have about 90 ° flexible angle this moment.
Experiment three: enhanced type solar photoelectric module encapsulation laminated construction
In order to reach reinforced module mechanical strength purpose; Prepare a laminated construction (like 1000 among Figure 10 A); Comprise acryl/EVA/ silicon wafer solar cell/EVA/ETFE, wherein acryl thickness is about 1mm thickness, ETFE thickness is about 50 μ m, and EVA thickness is about 0.4mm.To have the mould that adds that the encapsulation of pressing machine adds the lamination patterned structure then now, it is the semicircle mould of diameter 3mm.Pressing machine temperature is made as 150 ℃; In the cavity with chamber on the 40pa vacuum suction and following chamber totally 10 minutes; Then go up the chamber vacuum breaker and carried out module pressing again 10 minutes in 2.5 minutes, can dissolve the acrylic layer of 1mm thickness disconnected cutting this moment, obtains the solar photoelectric module encapsulation laminated construction like Fig. 6 (also can be Fig. 7); Encapsulate finished product and not only have the flexible characteristic this moment; More because of adding one deck acrylic layer, so, can reach the flexible characteristic and the effect that increases the battery reinforcement of lamination patterned structure in same pressing manufacture craft as strengthening layer.
Experiment four: enhanced type solar photoelectric module encapsulation laminated construction
Prepare a laminated construction that comprises ETFE/EVA/ acryl/EVA/ silicon wafer solar cell/EVA/ETFE, wherein acryl thickness is about 1mm thickness, ETFE thickness is about 50 μ m, and EVA thickness is about 0.4mm.Utilize then with experiment three identical manufacture crafts and carry out pressing; Can dissolve the acrylic layer of 1mm thickness disconnected cutting this moment; Obtain the solar photoelectric module encapsulation laminated construction like Fig. 8 (also can be Fig. 9), encapsulating finished product this moment has the flexible characteristic simultaneously and increases the effect that battery is strengthened.
Simulated experiment: optics impairment simulation
With Tracepro optical analog software simulated optical collection characteristics; The setting simulated conditions are: module area 7cm * 7cm; Cell area 1cm * 5cm, the lamination patterned structure is the V-arrangement patterned structure, and its drift angle is 37.87 °; Simulating each layer thickness and material structure lamination is ETFE/EVA/ acryl/EVA/SolarCell/EVA/ETFE; Wherein ETFE thickness is about 50 μ m, light refractive index is about 1.7, and EVA thickness is about that 0.4mm, optics folding survey rate is about 1.5, acryl thickness is that 1mm, light refractive index are about 1.49, and Solar Cell thickness is about 200 μ m.Carry out optical analog to the module of Figure 13 A (no patterned structure), Figure 13 B (the embossed surface structure is only arranged), Figure 13 C (tool lamination patterned structure) then, the arrow among the figure is represented the trend of light.The optical light-collecting that the result is only had the module of embossed surface structure to compare the module of no patterned structure increases about 1%; And that the module of tool lamination patterned structure of the present invention increases than the optical light-collecting of the module of no patterned structure is about 17%, so the lamination patterned structure more only has the module of embossed surface structure that preferable optical light-collecting effect is arranged.
Experiment five:
Utilize and test an identical pressing manufacture craft; Make a solar photoelectric module encapsulation laminated construction (like Figure 15) that has the lamination patterned structure as light-transmission type solar photoelectric module encapsulation laminated construction (like Figure 14) and of the no patterned structure of control group respectively; Laminated construction among the figure is three silicon wafer solar cell/EVA/ETFE of ETFE/EVA/; And ETFE thickness is about 50 μ m, and EVA thickness is about 0.4mm.Note that the oblique line among Figure 14 and Figure 15 partly is the silicon wafer solar cell, all the other then are laminated construction, though and among Figure 15 only display surface patterned structure is arranged, but in fact whole laminated construction in all have the lamination patterned structure.
Then, this experiment is tested with solar simulator, test condition be with standard test conditions (standard testing condition, STC), 25 ℃ of room temperatures, radiation source illumination 1000W/m
2, 0 ° of vertical incidence, with the solar cell of three serial connections as benchmark, relatively before the encapsulation with encapsulation after the solar module power difference, P before and after the encapsulation of the laminated construction of the solar photoelectric module of Figure 14 encapsulation as a result
MaxP before and after the solar photoelectric module encapsulation laminated construction encapsulation of increase by 2.25%, Figure 15
MaxIncrease by 12.36%.
The structure of the above-mentioned Figure 15 of picture can be made into the solar photoelectric module of large tracts of land Scroll in practical application, and is used as for building or product such as sun-shading curtain for automobile curtain.
Experiment six:
The solar photoelectric module encapsulation laminated construction of the control group of Figure 14 of same use experiment five and Figure 15.Test the voltage-to-current output characteristic of power output with the 3A class solar simulator (flash simulator) of standard test conditions (STC); After 3 monocrystalline solar cell serial connections; Be packaged into module as benchmark; Comparison module encapsulation back is to the solar module power difference of the difference of different incidence angles degree, and the definition benchmark is 25 ℃ of test condition room temperatures, radiation source illumination 1000W/m
2, 0 ° of vertical incidence, module power output 0.099Wp, vertical incidence definition module power ascension 0%.
The solar photoelectric module encapsulation laminated construction angle of inclination that the result obtains Figure 14 is 30 °, compares P with the STC vertical incidence
MaxLoss is 4.30%, if the solar photoelectric module of module package such as Figure 15 encapsulation laminated construction, the angle of inclination is ± 30 ° a crooked flexible structure, compares P with the STC vertical incidence
MaxLoss～0.96%, crooked flexible structure have the effect of significantly improving for the oblique incidence angle.
Experiment seven:
Utilize and test an identical pressing manufacture craft; Make a solar photoelectric module encapsulation laminated construction (like Figure 15) that has the lamination patterned structure as light-transmission type solar photoelectric module encapsulation laminated construction (like Figure 14) and of the no patterned structure of control group respectively; Laminated construction wherein is three silicon wafer solar cell/EVA/ETFE of glass/EVA/; Wherein ETFE thickness is about 50 μ m, and EVA thickness is about 0.4mm.
Then, this experiment is tested with solar simulator, and test condition is with standard test conditions (STC), 25 ℃ of room temperatures, radiation source illumination 1000W/m
2, 0 ° of vertical incidence; With the solar cell of three serial connections as benchmark; Relatively before the encapsulation with encapsulation after the solar module power difference, modular power did not increase by 24.72% before and after the result had the solar photoelectric module encapsulation laminated construction encapsulation that modular power increases by 11.24% before and after the solar photoelectric module encapsulation laminated construction encapsulation of patterned structure, have the lamination patterned structure.
Experiment eight:
Utilize and test an identical pressing manufacture craft; Make a solar photoelectric module encapsulation laminated construction (like Figure 15) that has the lamination patterned structure as light-transmission type solar photoelectric module encapsulation laminated construction (like Figure 14) and of the no patterned structure of control group respectively; Laminated construction wherein is three silicon wafer solar cell/EVA/ glass of glass/EVA/, and wherein EVA thickness is about 0.4mm.
Then, this experiment is tested with solar simulator, and test condition is with standard test conditions (STC), 25 ℃ of room temperatures, radiation source illumination 1000W/m
2, 0 ° of vertical incidence; With the solar cell of three serial connections as benchmark; Relatively before the encapsulation with encapsulation after the solar module power difference, modular power did not increase by 16.85% before and after the result had the solar photoelectric module encapsulation laminated construction encapsulation that modular power increases by 4.49% before and after the solar photoelectric module encapsulation laminated construction encapsulation of patterned structure, have the lamination patterned structure.
In sum, the present invention utilizes the geometry of single or a plurality of lamination embossing, can make solar photoelectric module encapsulation laminated construction have the effect of uneven flexible characteristic of module mechanical strength and light scattering.And, as in solar photoelectric module encapsulation laminated construction, adding strengthening layer, also can protect as the module package laminated construction as the silicon wafer solar cell and not be damaged.The present invention not only can be applied to GENERAL TYPE and light-transmission type solar photoelectric module, possesses simultaneously to make easily and the advantage of hoisting module generated output.
Though disclosed the present invention in conjunction with above embodiment; Yet it is not in order to limit the present invention; Be familiar with this operator in the technical field under any; Do not breaking away from the spirit and scope of the present invention, can do a little change and retouching, thus protection scope of the present invention should with enclose claim was defined is as the criterion.
Claims (15)
1. a solar photoelectric module encapsulation laminated construction comprises a laminated construction that includes most solar cells, has most lamination interfaces in this laminated construction, and this solar photoelectric module encapsulation laminated construction is characterised in that:
This laminated construction also comprises at least one lamination patterned structure; This lamination patterned structure is to be formed in those lamination interfaces of same position at least one continuously from a surface of this laminated construction; And this lamination patterned structure position causes this solar photoelectric module encapsulation laminated construction to have the effect of flexible characteristic and light scattering between those solar cells.
2. solar photoelectric module encapsulation laminated construction as claimed in claim 1 is characterized in that: this lamination patterned structure is serrated surface or is curvature structure.
3. solar photoelectric module encapsulation laminated construction as claimed in claim 1; It is characterized in that: this laminated construction comprises a strengthening layer; The rigidity of this strengthening layer is greater than the rigidity of each solar cell, and this strengthening layer is discontinuous structure at this lamination patterned structure place.
4. solar photoelectric module encapsulation laminated construction as claimed in claim 1, it is characterized in that: this laminated construction comprises:
The printing opacity cladding plate;
Backboard, this printing opacity cladding plate configuration relatively;
Those solar cells are between this printing opacity cladding plate and this backboard;
First encapsulated layer is between this printing opacity cladding plate and those solar cells; And
Second encapsulated layer is between this backboard and those solar cells.
5. solar photoelectric module encapsulation laminated construction as claimed in claim 4; It is characterized in that: this printing opacity cladding plate or this backboard are a strengthening layer; The rigidity of this strengthening layer is greater than the rigidity of each solar cell, and this strengthening layer is discontinuous structure at this lamination patterned structure place.
6. solar photoelectric module encapsulation laminated construction as claimed in claim 4 also comprises:
Strengthening layer, between this first encapsulated layer and those solar cells, wherein the rigidity of this strengthening layer is greater than the rigidity of each solar cell, and this strengthening layer is discontinuous structure at this lamination patterned structure place; And
The 3rd encapsulated layer is between this strengthening layer and those solar cells.
7. solar photoelectric module encapsulation laminated construction as claimed in claim 4 also comprises:
Strengthening layer, between this second encapsulated layer and those solar cells, wherein the rigidity of this strengthening layer is greater than the rigidity of each solar cell, and this strengthening layer is discontinuous structure at this lamination patterned structure place; And
The 4th encapsulated layer is between this strengthening layer and those solar cells.
8. like each described solar photoelectric module encapsulation laminated construction in the claim 4～7, also comprise at least one color layer, between this printing opacity cladding plate and this backboard.
9. solar photoelectric module encapsulation laminated construction as claimed in claim 4, it is characterized in that: this backboard or this printing opacity cladding plate are color layer.
10. the manufacturing approach of a solar photoelectric module encapsulation laminated construction comprises that pressing includes a laminated construction of most solar cells, has most lamination interfaces in this laminated construction, and this manufacturing approach is characterised in that:
During this pressing; The surface texture transfer printing that adds mould from a surface by utilizing one of this laminated construction causes at least one lamination patterned structure; This lamination patterned structure is to be formed in those lamination interfaces of same position at least one between those solar cells from this surface continuously, to cause this laminated construction to have the effect of flexible characteristic and light scattering.
11. the manufacturing approach of solar photoelectric module encapsulation laminated construction as claimed in claim 10, it is characterized in that: this laminated construction comprises:
The printing opacity cladding plate;
Backboard, this printing opacity cladding plate configuration relatively; Those solar cells are between this printing opacity cladding plate and this backboard;
First encapsulated layer is between this printing opacity cladding plate and those solar cells; And
Second encapsulated layer is between this backboard and those solar cells.
12. the manufacturing approach of solar photoelectric module encapsulation laminated construction as claimed in claim 11, it is characterized in that: this printing opacity cladding plate or this backboard are a strengthening layer, and the rigidity of this strengthening layer is greater than the rigidity of each solar cell.
13. the manufacturing approach of solar photoelectric module encapsulation laminated construction as claimed in claim 11, it is characterized in that: this laminated construction also comprises:
Strengthening layer, between this first encapsulated layer and those solar cells, wherein the rigidity of this strengthening layer is greater than the rigidity of each solar cell; And
The 3rd encapsulated layer is between this strengthening layer and those solar cells.
14. the manufacturing approach of solar photoelectric module encapsulation laminated construction as claimed in claim 11, it is characterized in that: this laminated construction also comprises:
Strengthening layer, between this second encapsulated layer and those solar cells, wherein the rigidity of this strengthening layer is greater than the rigidity of each solar cell; And
The 4th encapsulated layer is between this strengthening layer and those solar cells.
15. the manufacturing approach like each described solar photoelectric module encapsulation laminated construction in the claim 12～14 is characterized in that: utilize this surface texture transfer printing that adds mould to cause the step of this lamination patterned structure also to comprise: cut off this strengthening layer between those solar cells behind softening this strengthening layer.
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| CN2010102221617A CN102315293B (en) | 2010-06-30 | 2010-06-30 | Solar photovoltaic module package laminated layer structure and making method thereof |
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| CN2010102221617A CN102315293B (en) | 2010-06-30 | 2010-06-30 | Solar photovoltaic module package laminated layer structure and making method thereof |
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| CN102315293B CN102315293B (en) | 2013-09-04 |
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| US10734538B2 (en) | 2015-12-15 | 2020-08-04 | Flisom Ag | Structuring of a photovoltaic apparatus |
| CN111900221A (en) * | 2020-08-05 | 2020-11-06 | 苏州中来光伏新材股份有限公司 | Light high-strength photovoltaic module and preparation method thereof |
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| CN102315293B (en) | 2013-09-04 |
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