CN206401338U - A kind of photovoltaic cell encapsulation integration glued membrane backboard - Google Patents
A kind of photovoltaic cell encapsulation integration glued membrane backboard Download PDFInfo
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- CN206401338U CN206401338U CN201621392789.0U CN201621392789U CN206401338U CN 206401338 U CN206401338 U CN 206401338U CN 201621392789 U CN201621392789 U CN 201621392789U CN 206401338 U CN206401338 U CN 206401338U
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- China
- Prior art keywords
- adhesive film
- thickness
- film
- glued membrane
- adhesive
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Classifications
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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
Abstract
A kind of photovoltaic cell encapsulation integration glued membrane backboard disclosed in the utility model, weather-proof outer layer is followed successively by from top to bottom, base copolyester and the adhesive film contacted with cell piece, it is be bonded by adhesive linkage between the weather-proof outer layer and base copolyester, it is be bonded by adhesive linkage between the base copolyester and adhesive film, the adhesive film is that AB double-deckers are coextruded TPO adhesive film, thickness is 200 ~ 1000 μm, wherein A thickness degree is that 5 ~ 20%, the B thickness degree of adhesive film thickness is the 80 ~ 95% of adhesive film thickness.The adhesive film contacted with cell piece is coextruded polyolefin film by the utility model using AB double-deckers, enables to component, without adding traditional adhesive film in addition in cell piece dorsal part, to improve component production efficiency in lamination process, reduce component auxiliary material cost.
Description
Technical field
The utility model is related to a kind of backboard of photovoltaic module, and in particular to integration glued membrane is used in a kind of photovoltaic cell encapsulation
Backboard.
Background technology
It is good that coming years photovoltaic market is expected growing trend, and domestic market remains unchanged optimism.According to European photovoltaic industry association
（EPIA）Prediction, ends the year two thousand twenty, and China market total installed capacity amount is up to 130381MW, and the coming five years increase installation amount newly and reached
To 87000MW.Under the background that whole photovoltaic market keeps good development trend, the newest energy hair printed and distributed in state affairs administration office of the hospital
Exhibition Strategic Action Plan explicitly points out the year two thousand twenty, and photovoltaic generation is suitable with sales rate of electricity supplied to consumers.Therefore, in whole photovoltaic market
While keeping high growth situation, photovoltaic generation degree point cost then shows antipodal trend.National Development and Reform Committee in 2016
Issue《Notice on improving land wind-powered electricity generation photovoltaic generation online stake electrovalence》Clearly propose, opened from after 30 days June in 2016
A begin grid-connected class, two class resource-areas reduce by 10 points of, 7 points of respectively, and three class resource-areas reduce by 2 points of.This behave causes
Whole photovoltaic market progresses into the adjustment window phase of price, while overall price will keep the trend of entire lowering for a long time.
Therefore, strive for integrated cost decline, realize industry technology upgrade by be following whole industry developing direction.
POE（Polyolefin elastomer）Glued membrane is the copolymer of ethene and butylene or octene, and strand chains for saturated fat
Structure, with good weatherability, anti-ultraviolet ageing performance and excellent heat-resisting, resistance to low temperature.Meanwhile, POE glued membranes make
With the problem of EVA adhesive film produces acetic acid eroded components electrode in light-heat aging degradation process is avoided, component is almost prevented
Potential induced attenuation（PID）Phenomenon occurs.Generally, component by backboard, EVA adhesive film and cell piece by laminating machine appropriate
Lamination is carried out under temperature, pressure and vacuum to be prepared from.A layer packaging adhesive film is set in order to reduce module production process middle berth
Process, improve production efficiency, backboard producer be sought for by component lower floor glued membrane be dissolved into backboard integrated structure design
In.POE glued membranes lack polar group due to strand, so the interfacial bond property between POE glued membranes and base copolyester is poor,
POE glued membranes can increase the extra charge of photovoltaic module price 3% relative to EVA adhesive film simultaneously.
Utility model content
The problem of to solve in above-mentioned background, the utility model provides a kind of low cost, integration, and internal layer and cell piece
The photovoltaic cell encapsulation integration glued membrane backboard being reliably bonded.To achieve the above object, the technical side that the utility model is taken
Case is as follows：A kind of photovoltaic cell encapsulation integration glued membrane backboard, is followed successively by weather-proof outer layer from top to bottom, base copolyester and
The adhesive film contacted with cell piece, it is be bonded by adhesive linkage between the weather-proof outer layer and base copolyester, the base copolyester with
It is bonded between adhesive film by adhesive linkage, the adhesive film is that AB double-deckers are coextruded TPO adhesive film, and thickness is 0.2
~ 1mm, wherein A layers are polyolefin film, and its thickness is that 5 ~ 20%, the B layers of adhesive film thickness are POE glued membranes, and its thickness is glued membrane
The 80 ~ 95% of thickness degree.
The polyolefin film bulk composition includes polyolefin substrate and inorganic additive, and the polyolefin substrate is poly-
Ethene, polypropylene, metallocene catalysed polyethylene, metallocene catalysis polypropylene, polyethylene vinyl acetate copolymer, polyethylene-pungent
One or more combinations in alkene elastomer；The inorganic additive is one in montmorillonite, mica, talcum powder, titanium dioxide
Plant or a variety of combinations.
The base copolyester is photovoltaic grade polyester material, and its thickness is 0.01 ~ 3.0mm.
The weather-proof outer layer is Kynoar film layer, polyvinyl fluoride film layer, modified high-weatherability polyester layer, ether type FEVE are total to
One kind in poly- fluororine-carbon coating, its thickness is 0.001 ~ 0.3mm.
The base copolyester preferred hydrothermal aging time is more than 60h, elongation at break conservation rate>10%, ultraviolet ageing adds up
Irradiation is more than 200kWh/m2, elongation at break conservation rate>10%, yellowness index △ b<1 polyester film.
Beneficial effect：A kind of photovoltaic cell encapsulation integration glued membrane backboard disclosed in the utility model, its beneficial effect
It is really：
The adhesive film contacted with cell piece is coextruded polyolefin adhesive film using AB double-deckers, component is enabled in layer
Without adding traditional adhesive film in addition in cell piece dorsal part during pressure, component production efficiency is improved, component auxiliary material is reduced
Cost.
Designed using polyolefin film and POE glued membranes co-extrusion, on the one hand by polyolefin film is carried out surface corona with
And the abundant active group in surface of the inorganic modified particle of polyolefin film itself can improve the caking property with adhesive, it is to avoid POE
The problem of interfacial bond property is poor between adhesive film and polyurethane glue-line, is on the other hand ensureing the base of backboard interlayer adhesion
Production cost is substantially reduced on plinth, production efficiency is improved, while the use of POE glued membranes is supplied to component excellent compared to EVA adhesive film
The low water vapor transmittance and high specific insulation changed, it is ensured that security that component is run under hot and humid environment and permanent
Resistance to ag(e)ing, enables the components to long-acting use.
Weathering layer selects Kynoar film layer, polyvinyl fluoride film layer, modified high-weatherability polyester layer or ether type FEVE copolymerization
Fluororine-carbon coating, makes it have good ultra-violet resistance and weatherability, in irradiation 300KWH post yellowing index △ b<1, double 85（85
DEG C, 85%）Hydrothermal aging 3000h post yellowing index △ b<1.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, clear, complete description is carried out to the technical solution of the utility model.
A kind of photovoltaic cell encapsulation integration glued membrane backboard disclosed in the utility model, the photovoltaic back is by up to
Under be followed successively by weather-proof outer layer 1, adhesive linkage 2, base copolyester 3, adhesive linkage 2, adhesive film 4.
Particularly,
The weather-proof outer layer 1 is Kynoar film layer, polyvinyl fluoride film layer, modified high-weatherability polyester layer, ether type FEVE
One kind in copolymeric perfluorocarbon coating, when for Kynoar film layer, polyvinyl fluoride film layer or modified high-weatherability polyester layer, it is thick
Spend for 0.001 ~ 0.3mm, most preferably 0.02 ~ 0.06mm of preferred thickness, 0.02mm, 0.0225mm, 0.025mm, 0.05mm；When for
Ether type FEVE copolymeric perfluorocarbon coatings are, its thickness is 0.1 ~ 30 μm, preferably 2 ~ 20 μm, most preferably 2 μm, 5 μm, 10 μm, 15 μm, 20
μm。
The adhesive linkage 2 is dual-component polyurethane binding agent, and thickness is 1 ~ 20 μm, preferably 2 ~ 10 μm, most preferably 2 μm, 5
μm、8μm、10μm。
The base copolyester 3 is photovoltaic level polyester film, the preferably higher ranked polyester film of moisture-resistant heat ageing, such as PCT
Grade is up to 60h or 72h, and the thickness of base copolyester 3 is 0.01 ~ 3mm, and preferred thickness is 0.1 ~ 0.3mm, and optimum thickness is
0.188mm 、0.225mm、 0.25mm。
The adhesive film 4 is AB double-layer coextrusion structures, is with forming thickness by the co-extrusion of POE glued membranes 42 by polyolefin film 41
0.2 ~ 1mm polyolefin adhesive film, the wherein thickness of polyolefin film 41 are 0.01 ~ 0.20mm, account for the 5 ~ 20% of adhesive film thickness, excellent
It is 0.01 ~ 0.08mm to select thickness, and optimum thickness is 0.02mm, 0.04mm, 0.08mm.The thickness of POE adhesive films 42 is
0.16mm ~ 0.95mm, accounts for the 80 ~ 95% of the glued membrane depth, and preferred thickness is 0.4 ~ 0.5mm, optimum thickness be 0.4mm,
0.45mm、0.5mm。
Integration glued membrane backboard disclosed in the utility model, enables to component during lamination without in battery
Piece dorsal part adds traditional adhesive film in addition, improves component production efficiency, reduces the overall auxiliary material cost of component.It is simultaneously double-deck common
On the one hand the design of extrusion avoids the problem of interfacial bond property between POE and base copolyester is poor, is on the other hand protecting
Production cost is substantially reduced on the basis of barrier backboard interlayer adhesion.Traditional adhesive film is incorporated to the design concept of back board structure
The separation of conventional backing plate and traditional glued membrane interlayer is avoided, the guarantee of backboard high reliability is provided for whole component system.
One embodiment that the utility model is created is described in detail above, but the content is only that this practicality is new
The preferred embodiment that type is created, it is impossible to be considered as the practical range for limiting the utility model creation.It is all according to the utility model
Create the equivalent change made of application range and improve etc., within the patent covering scope for belonging to the utility model creation.
Claims (4)
1. a kind of photovoltaic cell encapsulation integration glued membrane backboard, be followed successively by weather-proof outer layer from top to bottom, base copolyester and with
The adhesive film of cell piece contact, be bonded by adhesive linkage between the weather-proof outer layer and base copolyester, the base copolyester and glue
It is bonded between film layer by adhesive linkage, it is characterised in that：The adhesive film is that AB double-deckers are coextruded TPO adhesive film,
Thickness is 200 ~ 1000 μm, and wherein A thickness degree is that 5 ~ 20%, the B thickness degree of adhesive film thickness is the 80 ~ 95% of adhesive film thickness.
2. a kind of photovoltaic cell encapsulation integration glued membrane backboard according to claim 1, it is characterised in that：The polyester
Basic unit is photovoltaic grade polyester material, and its thickness is 0.01 ~ 3.0mm.
3. a kind of photovoltaic cell encapsulation integration glued membrane backboard according to claim 1, it is characterised in that：It is described weather-proof
Outer layer is one in Kynoar film layer, polyvinyl fluoride film layer, modified high-weatherability polyester layer, ether type FEVE copolymeric perfluorocarbon coatings
Kind, its thickness is 0.001 ~ 0.3mm.
4. a kind of photovoltaic cell encapsulation integration glued membrane backboard according to claim 1, it is characterised in that：The polyester
Basic unit is moisture-resistant heat ageing and the high polyester film of anti-ultraviolet ageing grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621392789.0U CN206401338U (en) | 2016-12-19 | 2016-12-19 | A kind of photovoltaic cell encapsulation integration glued membrane backboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621392789.0U CN206401338U (en) | 2016-12-19 | 2016-12-19 | A kind of photovoltaic cell encapsulation integration glued membrane backboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206401338U true CN206401338U (en) | 2017-08-11 |
Family
ID=59511219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621392789.0U Expired - Fee Related CN206401338U (en) | 2016-12-19 | 2016-12-19 | A kind of photovoltaic cell encapsulation integration glued membrane backboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206401338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114437643A (en) * | 2021-12-31 | 2022-05-06 | 苏州弘道新材料有限公司 | Novel light photovoltaic module packaging plate |
-
2016
- 2016-12-19 CN CN201621392789.0U patent/CN206401338U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114437643A (en) * | 2021-12-31 | 2022-05-06 | 苏州弘道新材料有限公司 | Novel light photovoltaic module packaging plate |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20211219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |