CN208189608U - Structure on rear side of solar cell photovoltaic component cell piece - Google Patents
Structure on rear side of solar cell photovoltaic component cell piece Download PDFInfo
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- CN208189608U CN208189608U CN201820753363.6U CN201820753363U CN208189608U CN 208189608 U CN208189608 U CN 208189608U CN 201820753363 U CN201820753363 U CN 201820753363U CN 208189608 U CN208189608 U CN 208189608U
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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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Abstract
The utility model relates to the structures on rear side of a kind of solar cell photovoltaic component cell piece, wherein the structure on rear side of the cell piece successively includes glue film, the first resistant to hydrolysis polyester layer, pet layer, the second resistant to hydrolysis polyester layer.Using the structure on rear side of the solar cell photovoltaic component cell piece of the utility model, the fluorine-containing back board structure of comparison tradition is not only simple in structure, is environmental-friendly, and low in cost.
Description
Technical field
The utility model relates to solar photovoltaic assembly technical field, in particular to a kind of solar cell photovoltaic component electricity
Structure on rear side of the piece of pond.
Background technique
Solar cell photovoltaic component mainly include tempered glass, hot melt adhesive film, cell piece, backboard, frame, terminal box and
Silica gel etc..The service life of battery component generally requires 25 years, it is to be ensured that product reaches so long service life, just must strictly control
Make the quality of each component.Existing photovoltaic module is passed through by tempered glass, hot melt adhesive film, cell piece, hot melt adhesive film and backboard
Laminating technology becomes laminate, which includes technique, and reliability test and installation all comparative maturity, functions of each layer are as follows:
1, tempered glass: protection cell piece；
2, hot melt adhesive film: for tempered glass and cell piece is adhesively fixed；
3, cell piece: power generation.
4, backboard: sealing, insulation and waterproof etc..
Solar energy backboard is located at the back side of solar battery sheet, plays protection and supporting role to cell piece, needs to have Zhuo
Resistance to long-term ageing property (ultraviolet, damp and hot, xeothermic etc.), resistance to electrical insulation properties more, vapor water barriers performance.Fluorine-containing backboard is resistance to
Time is had excellent performance, and largely is used to prepare the weathering layer of solar cell backboard, but fluoroplastics are with high costs, and environment is not friendly
It is good, greatly limit its development space.
Usually use pet layer as weathering layer in traditional backboard, PET main chain contains a large amount of ester group, under wet heat condition
It is easy to happen hydrolysis.Hydrothermal aging initial moisture adsorbs in pet sheet face, slowly permeates, since as time went on, water is to PET
Etching and solvation, the crystallinity of PET gradually rises, and surface micropore and cracking increase, at the same time PET strand
Middle ester bond is broken by water molecules attack, forms the shorter PET of strand, and crystallinity is into one under the action of water speedup
Step increases, and PET brittleness increases, and moisture accelerates to PET internal penetration, and above procedure constantly repeats, and finally loses PET original
Mechanical property and aqueous vapor barrier property.And the raising of temperature, on the one hand accelerate PET crystallization, to increase its cracking degree；In addition
The activity for also adding carboxyl end group accelerates the generation of hydrolysis.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts, provide a kind of structure it is simple, to environment
Close friend can reduce human cost, reduce component raw material and production cost, raising backboard and component production capacity, reduction component envelope
Structure on rear side of the solar cell photovoltaic component cell piece of dress loss while the service life that component can be extended.
To achieve the goals above, the structure on rear side of the solar cell photovoltaic component cell piece of the utility model has such as
Lower composition:
Structure on rear side of the cell piece successively includes glue film, the first resistant to hydrolysis polyester layer, pet layer, the second water resistant depolymerization
Ester layer, the glue film, the first resistant to hydrolysis polyester layer, pet layer, the second resistant to hydrolysis polyester layer are located at the rear side of the cell piece
(back side).
Polyester is by polyethylene terephthalate -1,4 cyclohexane dimethanol ester in first resistant to hydrolysis polyester layer
(PCTG, wherein the molar content of 1,4-CHDM accounts for ethylene glycol and 1,4-CHDM total moles in the polyester
50% or more of content) or poly terephthalic acid 1,4 cyclohexane dimethanol ester (PCT) or PCT and polyethylene terephthalate
The mixture of ester (PET) is constituted.
Preferably, the first resistant to hydrolysis polyester layer, pet layer, the second resistant to hydrolysis polyester layer form three-decker film.
Preferably, the total thickness of the three-decker of the resistant to hydrolysis polyester layer, pet layer, the second resistant to hydrolysis polyester layer composition
Degree is 100~400 μm, and the thickness of the first resistant to hydrolysis polyester layer or the second resistant to hydrolysis polyester layer accounts for described three
The 5~35% of the overall thickness of layer structure, the thickness of the pet layer accounts for the 30~90% of the three-decker overall thickness.Energy
Backboard strength test is effectively ensured and meets existing standard requirements, while being conducive to the mechanical load test of component, guarantees that component exists
When outdoor wind pressure and crushing by snow, backboard is protected not to be torn out, guarantees the service life of component.
Preferably, the glue film is EVA adhesive film or POE glue film, with a thickness of 300~800 μm.
Using the structure on rear side of the solar cell photovoltaic component cell piece of the utility model, the first resistant to hydrolysis polyester layer or
Polyester in second resistant to hydrolysis polyester layer can for polyethylene terephthalate -1,4 cyclohexane dimethanol ester (PCTG) or
The mixture structure of poly terephthalic acid 1,4 cyclohexane dimethanol ester (PCT) or PCT and polyethylene terephthalate (PET)
At having upset the regular of intermolecular arrangements since a certain number of ethylene glycol are replaced by 1,4-CHDM (CHDM)
Property, cause crystal property to decline, and polar decline, therefore barrier property is remarkably reinforced for polar hydrone, it can be effective
Improve its hydrolytic resistance.Using the solar cell photovoltaic component battery chip architecture of the utility model, the fluorine-containing backboard of comparison tradition
Structure is not only simple in structure, is environmental-friendly, and low in cost.
Detailed description of the invention
Fig. 1 is the hierarchical structure schematic diagram of the structure on rear side of the solar cell photovoltaic component cell piece of the utility model.
Appended drawing reference
1 cell piece
2 glue films
3 first resistant to hydrolysis polyester layers
4 pet layers
5 second resistant to hydrolysis polyester layers
Specific embodiment
In order to more clearly describe the technology contents of the utility model, carry out combined with specific embodiments below into one
The description of step.
As shown in Figure 1, the structure on rear side of the cell piece provided by the utility model successively include cell piece 1, glue film 2,
First resistant to hydrolysis polyester layer 3, pet layer 4, the second resistant to hydrolysis polyester layer 5, the glue film, the first resistant to hydrolysis polyester layer, pet layer,
Second resistant to hydrolysis polyester layer is located at the back side of the cell piece.
Firstly, the three-decker of the certain thickness first resistant to hydrolysis polyester layer of production, pet layer, the second resistant to hydrolysis polyester layer,
It can be stretched through three-layer co-extruded biaxial orientation and directly be made or three layers of free standing film are made into through overheating layer by biaxial orientation stretching
The the first resistant to hydrolysis polyester level for obtaining above-mentioned three-decker film after pressure, while contacting with glue film passes through sided corona treatment, corona
The binding force of the two can be effectively improved after processing.
Secondly, above-mentioned three-decker, adhesive film 3 and cell piece are laminated together obtains above-mentioned solar battery sheet photovoltaic group
Structure on rear side of part.
Using the structure on rear side of the solar cell photovoltaic component cell piece of different-thickness shown in table one
Table one
In this description, the utility model is described with reference to its specific embodiment.But it is clear that still may be used
With the spirit and scope that various modification can be adapted and converts without departing from the utility model.Therefore, the description and the appended drawings should be considered
It is illustrative and be not restrictive.
Claims (4)
1. the structure on rear side of a kind of solar cell photovoltaic component cell piece, it is characterised in that: the knot on rear side of the cell piece
Structure successively includes glue film, the first resistant to hydrolysis polyester layer, pet layer, the second resistant to hydrolysis polyester layer, the glue film, the first resistant to hydrolysis
Polyester layer, pet layer, the second resistant to hydrolysis polyester layer are located at the rear side of the cell piece.
2. the structure on rear side of solar cell photovoltaic component cell piece according to claim 1, which is characterized in that described
First resistant to hydrolysis polyester layer, pet layer, the second resistant to hydrolysis polyester layer form three-decker film.
3. the structure on rear side of solar cell photovoltaic component cell piece according to claim 1, which is characterized in that described
The overall thickness of the three-decker of first resistant to hydrolysis polyester layer, pet layer, the second resistant to hydrolysis polyester layer composition is 100~400 μm, institute
The thickness of the first resistant to hydrolysis polyester layer or the second resistant to hydrolysis polyester layer stated accounts for the 5 of the overall thickness of the three-decker
~35%, the thickness of the pet layer accounts for the 30~90% of the three-decker overall thickness.
4. the structure on rear side of solar cell photovoltaic component cell piece according to claim 1, which is characterized in that described
Glue film is EVA adhesive film or POE glue film, with a thickness of 300~800 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820753363.6U CN208189608U (en) | 2018-05-21 | 2018-05-21 | Structure on rear side of solar cell photovoltaic component cell piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820753363.6U CN208189608U (en) | 2018-05-21 | 2018-05-21 | Structure on rear side of solar cell photovoltaic component cell piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208189608U true CN208189608U (en) | 2018-12-04 |
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ID=64427403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820753363.6U Active CN208189608U (en) | 2018-05-21 | 2018-05-21 | Structure on rear side of solar cell photovoltaic component cell piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208189608U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113927986A (en) * | 2020-07-14 | 2022-01-14 | 上海海优威应用材料技术有限公司 | Transparent photovoltaic back plate with multilayer structure |
-
2018
- 2018-05-21 CN CN201820753363.6U patent/CN208189608U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113927986A (en) * | 2020-07-14 | 2022-01-14 | 上海海优威应用材料技术有限公司 | Transparent photovoltaic back plate with multilayer structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 909A, Building A, 3000 Longdong Avenue, China (Shanghai) Free Trade Pilot Area, Pudong New Area, Shanghai, 200120 Co-patentee after: Shanghai Haiyou Wei Applied Materials Technology Co., Ltd. Patentee after: SHANGHAI HIUV NEW MATERIALS CO., LTD. Address before: Room 909A, Building A, 3000 Longdong Avenue, China (Shanghai) Free Trade Pilot Area, Pudong New Area, Shanghai, 200120 Co-patentee before: Shanghai palace Industrial Development Co. Ltd. Patentee before: SHANGHAI HIUV NEW MATERIALS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |