CN105514200A - Double-faced electricity-generating double-glass module - Google Patents
Double-faced electricity-generating double-glass module Download PDFInfo
- Publication number
- CN105514200A CN105514200A CN201610038900.4A CN201610038900A CN105514200A CN 105514200 A CN105514200 A CN 105514200A CN 201610038900 A CN201610038900 A CN 201610038900A CN 105514200 A CN105514200 A CN 105514200A
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- Prior art keywords
- glass
- generating electricity
- double
- module
- sides
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- 239000011521 glass Substances 0.000 title claims abstract description 103
- 230000005611 electricity Effects 0.000 claims abstract description 41
- 239000005341 toughened glass Substances 0.000 claims abstract description 14
- 238000004049 embossing Methods 0.000 claims abstract description 9
- 238000012360 testing method Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 230000003667 anti-reflective effect Effects 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 238000006124 Pilkington process Methods 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 description 5
- 230000035882 stress Effects 0.000 description 4
- 238000007747 plating Methods 0.000 description 3
- 206010003084 Areflexia Diseases 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 241000127225 Enceliopsis nudicaulis Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000002699 waste material 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
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0488—Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
-
- 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
Abstract
The invention belongs to the technical field of solar cells and provides a double-faced electricity-generating double-glass module. The module comprises front glass, a packaging layer, a double-faced electricity-generating battery piece, a packaging layer and back glass in sequence from top to bottom, the front glass is embossing toughened glass, the back glass is coated with a reflecting layer, and the reflecting layer is arranged in gaps of the double-faced electricity-generating battery piece in a coating mode, so that the latticed state is formed. The double-faced electricity-generating double-glass module has the advantages that the module itself does not change the framework of a double-glass module, so that it is unnecessary to worry about the load and installation of the module; the latticed-state reflecting layer of the back glass is distributed uniformly, so that the hot spot effect is not caused easily; due to existence of the highly reflective layer on the back side, compared with common back glass made through a float process, the power of the front side of the module is gained by 1.3%, and although a part of the back side is shielded by lattices, the unshielded part still has electricity generating capability, so that compared with a common light-permeable float process, the comprehensive efficiency (the back side accounts for 30%) of the whole module is improved to a certain extent.
Description
Technical field
The invention belongs to technical field of solar batteries, particularly relate to the two glass assembly of a kind of generating electricity on two sides.
Background technology
Current existing backboard and two glass assembly, great majority have employed one side polycrystalline or single crystal battery sheet, and the backboard of traditional back board module has extremely low transmitance, in order to ensure the generating efficiency in cell piece front.Growing along with two glass assembly, the advantage of himself is approved by people gradually, but adopts two glass+this combination of polycrystalline cell piece to be waste in a kind of resource really.
The defect of prior art and deficiency:
1. existing backboard+glass traditional components, backboard have steam through risk, can damage the envelope material in assembly and cell piece, reduce assembly generating efficiency and life-span; And traditional components intensity is more weak, need to increase frame to bear wind and snow load, limit adds development cost and brings the PID phenomenon of assembly virtually; Aborning, easily there is the apparent flaws such as bulge in back board module finished product backboard; Due to the characteristic of its back side low transmission, cause it that one side cell piece can only be adopted to generate electricity;
2. existing pair of glass assembly majority adopts one side list polycrystalline cell piece, only a few also has employing back of the body glass to be PTFF collocation generating electricity on two sides cell piece, but because existing policy only calculates front power for generating electricity on two sides assembly, so PTFF high permeability causes the light in gap not to be fully utilized, and white EVA and white backboard is adopted to sacrifice back side efficiency.
Summary of the invention
The object of the invention is to overcome prior art and there is the defect that two glass assembly can not make full use of light, provide a kind of generating electricity on two sides two glass assembly.
The technical solution adopted for the present invention to solve the technical problems is: the two glass assembly of a kind of generating electricity on two sides, comprise positive glass, encapsulated layer, generating electricity on two sides cell piece, encapsulated layer and back of the body glass from top to bottom successively, described positive glass is embossing toughened glass, described back of the body glass is for being coated with reflector, described reflector is coated in the gap between generating electricity on two sides cell piece, is formed latticed.
Further, described positive glass thickness is 0.55 ~ 3.2mm.
As preferably, described positive glass thickness is 2.0mm.
As preferably, for reducing the reverberation on positive glass surface, increase its light transmission capacity, described positive glass surface-coated has antireflective film.
Further, described back of the body glass thickness is 1.6 ~ 2.5mm.
As preferably, described back of the body glass thickness is 2.0mm.
Further, for avoiding two glass assembly front side light leakage, affect light conversion ratio, described reflector extends to bottom generating electricity on two sides cell piece, and the reflector area be positioned at bottom generating electricity on two sides cell piece is 1 ~ 9% of generating electricity on two sides cell piece area.
Further, described positive glass surface stress value is greater than 60MPa, and falling sphere test meets 1040g steel ball falling sphere and reaches 60cm, its warped degree, arc curved, waveform is curved all should within 5/1000ths.
Further, described back of the body glass surface stress value is greater than 60MPa, and falling sphere test meets 1040g steel ball falling sphere and reaches 60cm, its warped degree, arc curved, waveform is curved all should within 5/1000ths.
As preferably, described encapsulated layer is EVA, PVB, POE or organic silica gel, is wherein preferably POE.The EVA of the more current use of POE, has better thermal stability, optical property, anti-dry and cracked performance, has high visible, ultraviolet light light transmittance and lower mist degree, also have good pliability, molding performance, and it is cheap simultaneously.
Beneficial effect: 1. assembly itself does not change the framework of two glass assembly, so need not worry the load of assembly itself and the installation of assembly;
2. carry on the back the latticed reflector of glass to be evenly distributed, not easily cause hot spot effect;
3. the existence of assembly front power high anti-layer because the back side has, so power more common float glass process back of the body glass has a gain of 1.3%, and though a part is blocked by grid in the back side, but non-shield portions still possesses generating capacity, overall overall efficiency (back side calculates 30%) more common light-transmission type float glass process is compared and is had a certain upgrade.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the two glass modular construction schematic diagram of generating electricity on two sides;
Fig. 2 is back of the body glass structural representation;
Fig. 3 is back of the body glass and generating electricity on two sides cell piece fit structure schematic diagram.
Wherein: 1. positive glass, 2. encapsulated layer, 3. generating electricity on two sides cell piece, 4. glass is carried on the back, 41. reflector.
Embodiment
Embodiment 1
As illustrated in fig. 1 and 2, the two glass assembly of a kind of generating electricity on two sides, comprise positive glass 1, encapsulated layer 2, generating electricity on two sides cell piece 3, encapsulated layer 2 and back of the body glass 4 from top to bottom successively, described positive glass 1 is embossing toughened glass, described back of the body glass 4 is for being coated with reflector 41, described reflector 41 is coated in the gap between generating electricity on two sides cell piece 3, is formed latticed.Described positive glass 1 thickness is 2.0mm, and described positive glass 1 surface-coated has antireflective film; Described back of the body glass 4 thickness is 2.0mm, and as shown in Figure 3, described reflector 41 extends to bottom generating electricity on two sides cell piece 3, and reflector 41 area be positioned at bottom generating electricity on two sides cell piece 3 is 1 ~ 9% of generating electricity on two sides cell piece 3 area.Use POE as encapsulated layer 2 material in the application, two-layer POE is spread between positive glass 1 and generating electricity on two sides cell piece 3, busbar and the interconnecting strip junction thickness of cell piece are larger, the positive glass 1 of meeting bursting, and between positive glass 1 and cell piece, adopt two-layer encapsulated layer 2 shock-absorbing capacity good, can effectively avoid positive glass 1 to break.
Wherein embossing toughened glass is that single or double is with ridge design light transmitting decorative plate glass, pattern glass normally adopts special colored roller, special decorative pattern is suppressed on the surface of glass, for example pyramid decorative pattern, cellular, rhombus etc., reduce glass orienting reflex by the design of special embossing pattern, increase inner reflection, promote that it effectively absorbs solar energy, improve the transmitance of sunray significantly, improve electricity generation efficiency.
Wherein said positive glass 1 surface stress value should be greater than 60MPa, and falling sphere test meets 1040g steel ball falling sphere and reaches 60cm, its warped degree, arc curved, waveform is curved all should within 5/1000ths; Described back of the body glass 4 surface stress value is greater than 60MPa, and falling sphere test meets 1040g steel ball falling sphere and reaches 60cm, its warped degree, arc curved, waveform is curved all should within 5/1000ths.
Encapsulated layer 2POE needs the degree of cross linking to need to reach between 75% ~ 90%, strength of glass more than pulling force 100N, and laminating technology needs to realize battery strings does not occur and go here and there, expand the pressure measurement problems such as string, bubble, and encapsulated layer 2 material itself also needs to carry out the aging 60kw*h/m of UV
2, TC200 and DH1000 test.
Concrete laminating parameters is as shown in the table:
Efficiency by inputoutput test contrasts:
Assembly actual production, what adopt is the cell piece that MEGA company produces, positive glass 1 adopts plating antireflective film embossing toughened glass, what back of the body glass 4 adopted is common float glass process toughened glass and the toughened glass being coated with latticed reflectance coating, adopt identical row's string mode, in contrast following table, two groups of data are not difficult to find out, back of the body glass 4 adopts the assembly being coated with latticed reflectance coating comparatively to carry on the back glass 4 and adopts the assembly front power ascension of common float glass process toughened glass 3.649W, but back side power reduction 7.433W, because back side proportion is less, mainly with final in general, back of the body glass 4 adopts the assembly being coated with latticed reflectance coating comparatively to carry on the back glass 4 to adopt the assembly overall efficiency of common float glass process toughened glass to improve 1.419W.(following power is tested according to the specification of IEC61215).
Wherein overall efficiency=power (just)+30% power (back of the body).
Embodiment 2
Glass 1 positive in embodiment 1 is replaced with the plating antireflective film embossing toughened glass that thickness is 0.2mm, and back of the body glass 4 replaces with the toughened glass that thickness is 2.5mm.Other structures are with embodiment 1.
After tested, in the same circumstances (positive glass 1, generating electricity on two sides cell piece 3, encapsulating material are identical), the two glass assembly glass comprehensive power gain 1.512Ws of overall efficiency compared with areflexia layer common float glass process back of the body glass 4 of two glass assemblies of latticed reflector back of the body glass 4 are applied.
Embodiment 3
Glass 1 positive in embodiment 1 is replaced with the plating antireflective film embossing toughened glass that thickness is 3.2mm, and back of the body glass 4 replaces with the toughened glass that thickness is 1.6mm.Other structures are with embodiment 1.
After tested, in the same circumstances (positive glass 1, generating electricity on two sides cell piece 3, encapsulating material are identical), the two glass assembly glass comprehensive power gain 1.455Ws of overall efficiency compared with areflexia layer common float glass process back of the body glass 4 of two glass assemblies of latticed reflector back of the body glass 4 are applied.
Should be appreciated that specific embodiment described above only for explaining the present invention, being not intended to limit the present invention.Still be among protection scope of the present invention by spirit institute's apparent change of extending out of the present invention or change.
Claims (10)
1. the two glass assembly of generating electricity on two sides, it is characterized in that: comprise positive glass (1), encapsulated layer (2), generating electricity on two sides cell piece (3), encapsulated layer (2) and back of the body glass (4) from top to bottom successively, described positive glass (1) is embossing toughened glass, described back of the body glass (4) is for being coated with reflector (41), described reflector (41) is coated in the gap between generating electricity on two sides cell piece (3), is formed latticed.
2. the two glass assembly of generating electricity on two sides according to claim 1, is characterized in that: described positive glass (1) thickness is 0.55 ~ 3.2mm.
3. the two glass assembly of generating electricity on two sides according to claim 2, is characterized in that: described positive glass (1) thickness is 2.0mm.
4. the two glass assembly of generating electricity on two sides according to claim 1 and 2, is characterized in that: described positive glass (1) surface-coated has antireflective film.
5. the two glass assembly of generating electricity on two sides according to claim 1 and 2, is characterized in that: described back of the body glass (4) thickness is 1.6 ~ 2.5mm.
6. the two glass assembly of generating electricity on two sides according to claim 5, is characterized in that: described back of the body glass (4) thickness is 2.0mm.
7. the two glass assembly of generating electricity on two sides according to claim 1, it is characterized in that: described reflector (41) extends to generating electricity on two sides cell piece (3) bottom, reflector (41) area being positioned at generating electricity on two sides cell piece (3) bottom is 1 ~ 9% of generating electricity on two sides cell piece (3) area.
8. the two glass assembly of generating electricity on two sides according to claim 1, it is characterized in that: described positive glass (1) surface stress value is greater than 60MPa, falling sphere test meets 1040g steel ball falling sphere and reaches 60cm, its warped degree, arc curved, waveform is curved all should within 5/1000ths.
9. the two glass assembly of generating electricity on two sides according to claim 1, it is characterized in that: described back of the body glass (4) surface stress value is greater than 60MPa, falling sphere test meets 1040g steel ball falling sphere and reaches 60cm, its warped degree, arc curved, waveform is curved all should within 5/1000ths.
10. the two glass assembly of generating electricity on two sides according to claim 1, is characterized in that: described encapsulated layer (2) is EVA, PVB, POE or organic silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610038900.4A CN105514200A (en) | 2016-01-20 | 2016-01-20 | Double-faced electricity-generating double-glass module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610038900.4A CN105514200A (en) | 2016-01-20 | 2016-01-20 | Double-faced electricity-generating double-glass module |
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| Publication Number | Publication Date |
|---|---|
| CN105514200A true CN105514200A (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610038900.4A Pending CN105514200A (en) | 2016-01-20 | 2016-01-20 | Double-faced electricity-generating double-glass module |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068792A (en) * | 2017-04-13 | 2017-08-18 | 英利能源（中国）有限公司 | Generating electricity on two sides photovoltaic structure and generating electricity on two sides photovoltaic module |
| CN108767042A (en) * | 2018-05-24 | 2018-11-06 | 苏州中来光伏新材股份有限公司 | A kind of reflection gain type high transmittance solar battery back film and preparation method thereof |
| CN110018593A (en) * | 2019-04-17 | 2019-07-16 | Oppo广东移动通信有限公司 | Chip on board package substrate and preparation method thereof, display device, electronic equipment |
| CN112490314A (en) * | 2019-09-11 | 2021-03-12 | 宁波激阳新能源有限公司 | Fluorocarbon coating liquid and transparent solar backboard |
| CN113980564A (en) * | 2021-11-05 | 2022-01-28 | 东方日升新能源股份有限公司 | High-reflection black glass, preparation method thereof and double-glass photovoltaic module |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107068792A (en) * | 2017-04-13 | 2017-08-18 | 英利能源（中国）有限公司 | Generating electricity on two sides photovoltaic structure and generating electricity on two sides photovoltaic module |
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| CN108767042A (en) * | 2018-05-24 | 2018-11-06 | 苏州中来光伏新材股份有限公司 | A kind of reflection gain type high transmittance solar battery back film and preparation method thereof |
| CN110018593A (en) * | 2019-04-17 | 2019-07-16 | Oppo广东移动通信有限公司 | Chip on board package substrate and preparation method thereof, display device, electronic equipment |
| CN112490314A (en) * | 2019-09-11 | 2021-03-12 | 宁波激阳新能源有限公司 | Fluorocarbon coating liquid and transparent solar backboard |
| CN113980564A (en) * | 2021-11-05 | 2022-01-28 | 东方日升新能源股份有限公司 | High-reflection black glass, preparation method thereof and double-glass photovoltaic module |
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Application publication date: 20160420 |
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