CN209183562U - A kind of encapsulation foreboard - Google Patents
A kind of encapsulation foreboard Download PDFInfo
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- CN209183562U CN209183562U CN201821567650.4U CN201821567650U CN209183562U CN 209183562 U CN209183562 U CN 209183562U CN 201821567650 U CN201821567650 U CN 201821567650U CN 209183562 U CN209183562 U CN 209183562U
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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
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Abstract
The utility model provides a kind of encapsulation foreboard, the encapsulation foreboard is the composite membrane for being fitted in solar cell module upper surface, with high-barrier effect and high transparency, it is characterized in that, the composite membrane from top to bottom, including the first adhesive layer, the first aqueous vapor separation layer, the first modified primary coat coating, the first film substrate layer, the second adhesive layer, the second aqueous vapor separation layer, the second modified primary coat coating, the second film substrate layer, layer of silica gel.The product has lower water vapor transmittance (less than 10‑6g/m2Day) and higher light transmittance (be greater than 95%), the service life of battery can not only be extended, while improving generating efficiency, while product packaging technology is simple and efficient, and improves yields.
Description
Technical field
The utility model relates to a kind of solar cell package components, relate more specifically to a kind of for flexible solar electricity
The encapsulation foreboard in pond.
Background technique
Currently, encapsulation quality has important role to the service life of battery in solar cell module.Solar-electricity
Penetrating into battery component mainly as isolation air, steam for the foreboard enclosed construction of pond component, plays protection solar-electricity
The effect in pond.
A new varieties of the flexible thin-film solar cell as solar cell, technologically advanced, function admirable, purposes are wide
It is general, increasingly it is valued by people.Due to the application environment particularity of flexible thin-film solar component, it is desirable that solar energy foreboard
With certain translucency, resistance to ag(e)ing, insulating properties, self-cleaning, anti-flammability, reelability, simultaneously because certain hull cells are (such as
CIGS hull cell) it is more sensitive to moisture, flexible solar foreboard will also have high block-water performance, and WVTR is less than 5*10-3(g/
m2.day).Patent CN102738283A discloses a kind of foreboard encapsulating structure of solar components, wherein encapsulation front board structure is just
Including in the first EVA film, having used one layer of ETFE fluoroplastics film, which can improve durability and heat-insulated to a certain extent
Performance.What plate material used before current existing flexible solar is usually a kind of composite membrane, is obstructed comprising etfe film, UV
Film, the film that blocks water, PET film etc., the said goods water preventing ability, translucency, insulating properties, weatherability are poor, and packaging technology is complicated, non-defective unit
Rate is lower.
The utility model develops plate material before a novel flexible encapsulates, and plate material, which removes, before this has anti-fingerprint scratch-resistant
Outside wound, the characteristic of frivolous softness, also there is higher water vapor rejection effect and light transmittance, can not only extend battery uses the longevity
Life, while generating efficiency is improved, while product packaging technology is simple and efficient, and improves yields.
Summary of the invention
For problem of the existing technology before, the utility model provides the bloom kind encapsulation for solving described problem
Front board structure.The utility model develops plate material before a encapsulation, for the solar battery that can apply the utility model
Foreboard is encapsulated, a kind of encapsulation foreboard of the frivolous softness with high-barrier effect and high transparency disclosed by the utility model can
To meet the requirement of automatically cleaning, anti-fingerprint damage resistant, frivolous softness, while there is this foreboard lower water vapor transmittance (to be less than
10-6g/m2Day) and higher light transmittance (be greater than 95%), the service life of battery can not only be extended, while improving power generation
Efficiency, while product packaging technology is simple and efficient, and improves yields.
The first aspect of the utility model, provides a kind of encapsulation foreboard, and the encapsulation foreboard is to be fitted in solar-electricity
The composite membrane of pond component upper surface, which is characterized in that the composite membrane from top to bottom, including the first adhesive layer, the first steam
Barrier layer, the first modified primary coat coating, the first film substrate layer, the second adhesive layer, the second aqueous vapor separation layer, the second modified bottom
Coating layer, the second film substrate layer, layer of silica gel.The term " encapsulation foreboard " that the utility model uses, refers to table on photovoltaic chip
Play the material of packaging protection in face.
Encapsulation foreboard in the utility model, the actually one layer composite membrane for being covered on battery component upper surface, the film
It with multilayered structure, by several property, forms identical or different material layer and forms, each material layer can be by coating, thin
The structure type of film can be combined with each other by process means such as deposition, plated film, laminations, form the encapsulation of the utility model
Foreboard.Plate material is that PVB polyvinyl butyral resin and EVA ethene-vinyl acetate are total before encapsulation commonly used in the prior art
The polymer such as polymers.
The part solar energy encapsulation foreboard water vapor transmittance of the prior art is lower, and about 10-2g/m2day-10-5g/m2Day, and
Light transmittance is lower, less than 90%.Simultaneously because conventional solar cells transparent enclosure film light transmittance is poor, chemicals are easily precipitated
Matter, while ageing-resistant effect is poor, it is more than process operation temperatures higher (general 140 DEG C), and process time longer (general lamination
Time 20-30min), part glue film also needs special installation, therefore causes packaging technology complicated, higher cost, yields compared with
It is low, while product is not only thick but also hard.
The flexible solar battery envelope of frivolous softness provided by the utility model with high-barrier effect and high transparency
Foreboard is filled, can satisfy the requirement of automatically cleaning, anti-fingerprint damage resistant, frivolous softness, while this foreboard has lower steam saturating
Rate is crossed (less than 10-6g/m2Day) and higher light transmittance (be greater than 95%), the service life of battery can not only be extended, simultaneously
Generating efficiency is improved, while product packaging technology is simple and efficient, and improves yields.
The encapsulation foreboard composite membrane of the utility model, while there is high-barrier effect and high transparency.The utility model obtains
Arrive it is flexible too can pond cell package foreboard performance indicator it is as follows: thickness 0.2-0.4mm is adjustable, 95% or more light transmittance, water
Vapour transmitance is lower than 10-6g/m2Day is adjustable, and surface hardness 2H-3H is adjustable, tensile strength 170MPa or more, elongation at break
140% or more.
In further preferred scheme, the also compound one layer of fluorine film class material layer in the upper surface of first adhesive layer,
With a thickness of 25um-50um.
In further preferred scheme, the fluorine film material of the fluorine film class material layer be PVF, PVDF, ETFE or
ECTFE fluorine-contained film class material, 93% or more light transmittance.
In further preferred scheme, the also compound one layer of PE protective film in the layer of silica gel lower surface.
In further preferred scheme, the first, second adhesive layer, with a thickness of 5-30um.
In further preferred scheme, first, second aqueous vapor separation layer, with a thickness of 1-30um.
In further preferred scheme, the described first, second modified primary coat coating, with a thickness of 1-15um.
In further preferred scheme, the first, second film substrate layer, with a thickness of 50-200um, it is seen that light is saturating
Light rate is 90% or more.
In further preferred scheme, the layer of silica gel, with a thickness of 100-200um.
In further preferred scheme, the described first, second modified primary coat coating may be selected to be acrylic acid, polyurethane
Or polyester type coating.
In further preferred scheme, first, second adhesive layer contains polyurethane or acrylic material.
A kind of encapsulation foreboard provided by the utility model will obtain following beneficial better than the prior art without limitation
Effect it is one or more:
1. the utility model encapsulates foreboard, the requirement of automatically cleaning, anti-fingerprint damage resistant, frivolous softness can satisfy, simultaneously
This foreboard has lower water vapor transmittance (less than 10-6g/m2Day) and higher light transmittance (be greater than 95%), can not only prolong
The service life of long battery, while generating efficiency is improved, while product packaging technology is simple and efficient, and improves yields.
2. introducing adhesive layer, make this flexible front plate that there is the characteristic of frivolous softness；Introduce the double-deck aqueous vapor separation layer structure
Water vapor transmittance is reduced, less than 10-6g/m2day；By introduce high light transmission silica gel, make product light transmittance be increased to 95% with
On.
Detailed description of the invention
Fig. 1 is the schematic diagram of the encapsulation foreboard of the utility model one embodiment.
Fig. 2 is the schematic diagram of the encapsulation foreboard of the utility model one embodiment.
Wherein appended drawing reference are as follows: 1- fluorine film class material layer, the first adhesive layer of 2-, the first aqueous vapor separation layer of 3-, 4- first
Modified primary coat coating, 5- the first film substrate layer, the second adhesive layer of 6-, the second aqueous vapor separation layer of 7-, the modified primary coat of 8- second
Coating, 9- the second film substrate layer, 10- layer of silica gel, 11-PE protective film.
Specific embodiment
Hereinafter, will be made more in detail in conjunction with Figure of description and specific embodiment to this bright technical solution and advantage
Thin explanation and illustration.It should be understood that the content presented in specification, specific embodiment and Figure of description, only
Only for clearly illustrating the technical solution of the utility model and its advantage, not to protection scope of the utility model structure
At limitation.Those skilled in the art reasonable can be changed on the basis of specification disclosure for various
Technical solution afterwards, without departing from the spirit of the utility model, it is practical new that the technical solution after various change is included in this
Within the protection scope of type.
Embodiment 1
Hereinafter, the encapsulation foreboard composite membrane of the embodiment of the present invention will be described in detail referring to Fig.1.This reality
The encapsulation foreboard of example is applied, consisting of it is closely covered on the composite membrane of solar cell module upper surface, it is compound by multilayer film
It forms.Wherein 2 be the first adhesive layer, thickness 5-30um, more preferably 5-25um, more preferably 10-20um, more preferably
It is 15um, the characteristic for making this flexible front plate that there is frivolous softness by introducing adhesive layer；3 be the first aqueous vapor separation layer, thick
Spend 1-30um, more preferably 5-25um, more preferably 10-20um, more preferably 15um；4 be modified primary coat coating, thick
1-15um, more preferably 3-12um, more preferably 5-8um are spent,；5 be the first film substrate layer, thickness 50-200um, more
Preferably 80-150um, more preferably 100-120um, the first film substrate layer substrate are the PET film of high light transmission,
Visible light transmittance rate is 90% or more；6 be the second adhesive layer, thickness 5-30um, more preferably 5-25um, more preferably
10-20um, more preferably 15um, this layer play the role of bonding, isolation, while this flexible front plate being made to have frivolous softness
Characteristic；7 be the second aqueous vapor separation layer, thickness 1-30um, thickness 1-30um, more preferably 5-25um, more preferably 10-
20um, more preferably 15um reduce water vapor transmittance by introducing the double-deck aqueous vapor separation layer structure, less than 10-6g/
m2day；8 be the second modified primary coat coating, thickness 1-15um, more preferably 3-12um, more preferably 5-8um,；9 be
Two film substrate layers, thickness 50-200um, more preferably 80-150um, more preferably 100-120um, second film
Substrate layer is the PET film of high light transmission, it is seen that light transmittance is 90% or more, and 10 be layer of silica gel, and thickness 100-200um passes through
High light transmission layer of silica gel is introduced, product light transmittance is made to be increased to 95% or more.
The specific preparation process of the encapsulation foreboard of the present embodiment structure are as follows:
Step 1: providing the first, second film substrate layer, it is modified to be respectively coated first, second above-mentioned two layers of upper surface
The wet film of primary coat coating preferably forms the dry film of two layers first, second modified primary coat coatings after 70-90 DEG C of drying of high temperature；
Step 2: the composite membrane prepared using step 1, in the upper surface of two layers first, second modified primary coat coatings using former
Two layers of first, second aqueous vapor separation layers are prepared in sublayer depositing operation or magnetron sputtering technique；Step 3: preparing adhesive layer
Fluid, composite membrane prepared by step 2 applied using line two layers aqueous vapor separation layer upper surface, blade coating or roll coating model processing
Above-mentioned fluid, obtains the wet film of two layers of first, second adhesive layers, preferably 50-100 DEG C, obtains first after 1-5min is dry, the
The dry film of two adhesive layers, the preferred 5-30um of thickness；
Step 4: the composite membrane prepared using above-mentioned steps 3 is used in the second film substrate layer lower surface and sprays, scrapes
The wet film of painting or roll coating model preparation layer of silica gel, obtains layer of silica gel, preferred thickness 100- after 1-5min is dry by preferably 50-100 DEG C
200um, at the same composite protection film and wind obtain finished product.
The structure for the encapsulation foreboard that the present embodiment obtains is as shown in Figure 1.Wherein, the encapsulation foreboard, the encapsulation foreboard are
Be fitted in the composite membrane of solar cell module upper surface, have high-barrier effect and rate, the composite membrane from top to bottom, including
First adhesive layer 2, the first aqueous vapor separation layer 3, first modified primary coat coating 4, the first film substrate layer 5, the second adhesive layer
6, the second aqueous vapor separation layer 7, second modified primary coat coating 8, the second film substrate layer 9, layer of silica gel 10.
Embodiment 2
Further to adjust and optimizing the structure and comprehensive performance that the utility model encapsulates foreboard, the present embodiment 2 is being implemented
On the basis of example 1 encapsulates foreboard, following improvement is made to structure and its preparation process.
Preferably, on the basis of embodiment 1 encapsulates foreboard structure of composite membrane, the upper surface of first adhesive layer 2
Also compound one layer of fluorine film class material layer, with a thickness of 25um-50um；The fluorine film material of fluorine film class material layer be PVF, PVDF,
ETFE or ECTFE fluorine-contained film class material, 93% or more light transmittance.It is furthermore preferred that compound one layer in the lower surface of layer of silica gel 10
PE protective film 11.
The specific preparation step of the encapsulation foreboard composite membrane of embodiment 2 are as follows:
Can embodiment 1 encapsulate foreboard composite membrane preparation method on the basis of, further preferably include the following steps: to walk
Further include following steps before the wet film for carrying out preparation layer of silica gel 10 in rapid 4: one layer of fluorine film class material layer is provided, with step 3
Two with 6 dry film of the second adhesive layer prepared by the composite membrane for being respectively provided with 2 dry film of the first adhesive layer and step 3 of preparation
A composite membrane is successively laminated, be pressurized bonding it is compound after winding it is spare, wherein 2 upper surface of the first adhesive layer dry film with it is described
Fluorine film class material layer 1 bonds, and the 6 dry film upper surface of the second adhesive layer and the first film substrate layer 5 bond.
It is furthermore preferred that after the step 4, also being wrapped on the basis of the preparation method of the encapsulation foreboard composite membrane of embodiment 1
It includes following steps: after preparing the layer of silica gel 10, passing through pressurized adhesion, compound one layer of PE protective film 11 in its lower surface.
The structural schematic diagram for the encapsulation foreboard that the embodiment obtains is as shown in Figure 2.Wherein, 1 is fluorine film class material layer, thickness
Preferably 25um-50um；11 be PE protective film, which easily tears, and plays the role of protection packaging foreboard finished composite film, to
Encapsulation foreboard composite membrane needs are packaged when solar cell surface, open this layer of protective film.
The embodiment obtains encapsulation foreboard, the composite membrane from top to bottom, including fluorine film class material layer 1, the first adhesive
The 2, first aqueous vapor separation layer 3, first of layer modified primary coat coating 4, the first film substrate layer 5, the second adhesive layer 6, the second steam
Barrier layer 7, second is modified primary coat coating 8, the second film substrate layer 9, layer of silica gel 10, PE protective film 11.
The encapsulation foreboard that the utility model is prepared according to above-mentioned preparation process is in use, be specifically applicable to encapsulate soft
Property solar cell module upper surface when, in the prior art conventional packaging method can be used.Such as it can be specifically according to following
Step first prepares the mold to match with packaged solar panel, in one layer of rubber moulding material of mould inner surface spray sintering
Material, solar battery energy solar panel are put into the groove of mold, then will be covered in the template for placing solar panel
Encapsulation foreboard composite membrane (when placement, first throwing off the outermost PE protective film of composite membrane) provided by the utility model, then puts
Enter laminating machine to be packaged, cooling is carried out after taking-up, is demoulded.
The utility model is applied to the encapsulation foreboard of flexible solar battery, has high-barrier effect and high transparency, can
To meet the requirement of automatically cleaning, anti-fingerprint damage resistant, frivolous softness, while there is this foreboard lower water vapor transmittance (to be less than
10-6g/m2Day) and higher light transmittance (be greater than 95%), the service life of battery can not only be extended, while improving power generation
Efficiency, while product packaging technology is simple and efficient, and improves yields.
Herein, it should be noted that the description of above-mentioned technical proposal is exemplary, and this specification can be in different forms
It embodies, and should not be construed as limited to technical solution set forth herein.It will be so that this be practical new on the contrary, providing these explanations
It will be thorough and complete that type, which discloses, and range disclosed in this specification will be sufficiently conveyed to those skilled in the art.This
Outside, the technical solution of the utility model is limited solely by the scope of the following claims.
For describing shape, size disclosed in the various aspects of specification and claims, ratio, angle and number only
It is example, therefore, specification and claims are not limited to shown details.In the following description, when relevant known
It is detailed by omitting when function or the detailed description of configuration are confirmed as unnecessarily obscuring the emphasis of specification and claims
Description.
Using " comprising " described in this specification, " having " and "comprising", unless using
Otherwise can also have another part or other parts, term used usually can be odd number but can also indicate plural shape
Formula.
It is noted that although this specification be likely to occur and use term " first ", " second ", " top ", " bottom ",
" side ", " other side ", " one end ", " other end " etc. describe a variety of different components, but these ingredients and part do not answer
It is limited by these terms.These terms are only used to distinguish an ingredient and part and another ingredient and part.For example, not
In the case where the range for being detached from this specification, the first component can be referred to as second component, and similarly, and second component can be with
The referred to as first component, the component of top and bottom in any case, can also be exchanged or be converted each other；One end and the other end
Component can each other performance it is same or different.
In addition, in component parts, although without its specific description, it is to be understood that necessarily including certain error region
Domain.
When describing positional relationship, for example, when sequence of positions is described as " ... on ", " in ... top ", " ...
Lower section " and when " next ", unless use vocabulary or term as " lucky " or " direct ", furthermore then may include they it
Between the situation that does not contact or contact.If mentioning first element is located at second element "upper", is not meant in figure
One element must be positioned at the top of second element.The upper and lower part of the component angle according to the observation and can change in orientation of
And change.It therefore, in the accompanying drawings or in actual configuration, can if relating to the case where first element is located at second element "upper"
To include the case where the case where first element is located at second element " lower section " and first element is located at second element " top ".?
When describing time relationship, unless " lucky " or " direct " is used, otherwise at description " later ", " subsequent ", " subsequent " and " before "
When, it may include between step and discontinuous situation.The feature of the various embodiments of the utility model can partly or
It is fully combined with each other or splices, and what can be fully understood such as those skilled in the art is configured differently with various
To execute.The embodiments of the present invention can execute independently of one another, or can be held together with complementary relationship
Row.
Claims (10)
1. a kind of encapsulation foreboard, the encapsulation foreboard is the composite membrane for being fitted in solar cell module upper surface, and feature exists
From top to bottom in, the composite membrane, including it is the first adhesive layer, the first aqueous vapor separation layer, the first modified primary coat coating, first thin
Film base material layer, the second adhesive layer, the second aqueous vapor separation layer, the second modified primary coat coating, the second film substrate layer, layer of silica gel.
2. a kind of encapsulation foreboard according to claim 1, which is characterized in that the upper surface of first adhesive layer is also multiple
Unify layer fluorine film class material layer, with a thickness of 25um-50um.
3. a kind of encapsulation foreboard according to claim 2, which is characterized in that the fluorine film material of the fluorine film class material layer
For PVF, PVDF, ETFE or ECTFE fluorine-contained film class material, 93% or more light transmittance.
4. a kind of encapsulation foreboard according to claim 1 or 2, which is characterized in that the layer of silica gel lower surface also compound one
Layer PE protective film.
5. a kind of encapsulation foreboard according to claim 1, which is characterized in that the first film substrate layer is high light transmission
PET film.
6. a kind of encapsulation foreboard according to claim 1, which is characterized in that the second film substrate layer is high light transmission
PET film.
7. a kind of encapsulation foreboard according to claim 1, which is characterized in that the first film substrate layer, with a thickness of 50-
200um。
8. a kind of encapsulation foreboard according to claim 1, which is characterized in that the first film substrate layer, light transmittance
90% or more.
9. a kind of encapsulation foreboard according to claim 1, which is characterized in that the second film substrate layer, with a thickness of 50-
200um。
10. a kind of encapsulation foreboard according to claim 1, which is characterized in that the second film substrate layer, light transmittance
90% or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201821567650.4U CN209183562U (en) | 2018-09-25 | 2018-09-25 | A kind of encapsulation foreboard |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821567650.4U CN209183562U (en) | 2018-09-25 | 2018-09-25 | A kind of encapsulation foreboard |
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| CN209183562U true CN209183562U (en) | 2019-07-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244166A (en) * | 2018-09-25 | 2019-01-18 | 汉能移动能源控股集团有限公司 | A kind of encapsulation foreboard and its preparation process |
-
2018
- 2018-09-25 CN CN201821567650.4U patent/CN209183562U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244166A (en) * | 2018-09-25 | 2019-01-18 | 汉能移动能源控股集团有限公司 | A kind of encapsulation foreboard and its preparation process |
| CN109244166B (en) * | 2018-09-25 | 2024-01-02 | 东君新能源有限公司 | Packaging front plate and preparation process thereof |
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Effective date of registration: 20201223 Address after: No.31 Yanqi street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee after: Beijing Huihong Technology Co., Ltd Address before: Hanneng mobile Energy Holding Group Co., Ltd., room 107, building 2, Olympic Village street, Chaoyang District, Beijing Patentee before: HANERGY MOBILE ENERGY HOLDING GROUP Co.,Ltd. |
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Effective date of registration: 20211101 Address after: No.31 Yanqi street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee after: Dongjun new energy Co.,Ltd. Address before: No.31 Yanqi street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee before: Beijing Huihong Technology Co., Ltd |