CN209658202U - A kind of encapsulation foreboard - Google Patents
A kind of encapsulation foreboard Download PDFInfo
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- CN209658202U CN209658202U CN201821567646.8U CN201821567646U CN209658202U CN 209658202 U CN209658202 U CN 209658202U CN 201821567646 U CN201821567646 U CN 201821567646U CN 209658202 U CN209658202 U CN 209658202U
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- film
- encapsulation
- layer
- encapsulation foreboard
- foreboard
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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 utility model provides a kind of encapsulation foreboard, the encapsulation foreboard is the composite membrane for being fitted in solar cell module upper surface, the composite membrane from top to bottom, including anti-stick coating, frosted aging-resistant layer, the first film substrate layer, the first adhesive film, the second film substrate layer, modified primary coat coating, aqueous vapor separation layer.The requirement that the encapsulation foreboard of the utility model can satisfy the lower water vapor transmittance of mobile energy class and lower service life requires (less than 5 years), this flexible front plate surface anti-fingerprint damage resistant, packaging technology are succinctly efficient simultaneously, and material and process costs are lower.
Description
Technical field
The utility model relates to a kind of solar cell package components, relate more specifically to a kind of for the flexible mobile sun
The encapsulation foreboard of energy field of batteries.
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.Encapsulating material generally uses the adhesive film based on PVB, EVA, and effect is fixed cell piece, and completely cuts off air
And water vapour, to have longer service life after guaranteeing cell package.And PVB and EVA material are closed comprehensive in solar battery
The place of aspect of performance all Shortcomings is closed, block-water performance is not good enough, by after a certain period of time, steam can be along battery component side
Edge enters component internal；It is not high enough with the adhesion strength of metal simultaneously, cause solar battery group using after a certain period of time,
Electrode is separated with glue film, loses the effect of encapsulation.
The deficiency of the closed performance of plate material, patent CN102738283A are disclosed before encapsulating for conventional solar cell
A kind of foreboard encapsulating structure of solar components, wherein encapsulation front board structure just includes having used one layer in the first EVA film
ETFE fluoroplastics film, the structure can be improved durability and heat-proof quality.Flexible thin-film solar cell is as solar cell
One new varieties, it is technologically advanced, function admirable, widely used, increasingly it is valued by people.Partially flexible encapsulation foreboard is adopted
With fluorine film material, resistance to ag(e)ing is higher, and outdoor service life was up to 25 years or more, but fluorine film is expensive, and packaging technology is multiple
Miscellaneous and yields is lower, is not suitable for mobile energy low cost, the use that lower service life, packaging technology are simple and efficient is wanted
It asks.
Summary of the invention
For problem of the existing technology before, the utility model provides a kind of encapsulation foreboard for solving described problem
Structure.The utility model develops plate material before a encapsulation, can apply the solar cell package foreboard of the utility model,
The mobile energy of satisfaction consumption category being simple and efficient with anti-fingerprint damage resistant, lower water vapor transmittance, low cost, packaging technology
Service life requires.
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 anti-stick coating, frosted aging-resistant layer,
The first film substrate layer, the first adhesive film, the second film substrate layer, modified primary coat coating, aqueous vapor separation layer.
The term " encapsulation foreboard " that the utility model uses, refers to that photovoltaic chip upper surface plays the material of packaging protection
Material.
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.
The composition of the encapsulation foreboard of the prior art is relatively simple, is exactly substantially one or two layers PVB, EVA, PET or ETFE
Film is covered on battery component upper surface, and Compound Degree is not high, function than relatively limited, be unable to satisfy encapsulation foreboard blocking water vapor,
The balance of comprehensive performance between the performances such as translucency, chemical stability；And the preparation work of encapsulation foreboard film in the prior art
Skill is complicated, and the requirement to equipment is high, and film composition material is at high cost.
Encapsulation foreboard provided by the utility model, the composite of performance index that the composite membrane of composition is shown are as follows: thickness
For 0.3-1mm, light transmittance 90%-93%, mist degree 20-75%, water vapor transmittance 10-2g/m2/ day -10-6g/m2/ day, surface are hard
Spend 2H-3H, tensile strength 170MPa or more, elongation at break 140%, the encapsulation foreboard of the utility model, water preventing ability, light transmission
The performance of property, weatherability, insulating properties, wearability etc. also gets a promotion compared with prior art.
The encapsulation foreboard composite membrane of the utility model simultaneously, has abandoned at high cost, complex process fluorine-contained film, using having
The compound tunic of machine and/or inorganic material composition, meets the encapsulation standard of flexible mobile battery plate.It is preferred in the utility model
Scheme in, compound second adhesive film in aqueous vapor separation layer lower surface.
In further preferred scheme, the compound PE protective film in second adhesive film lower surface.
In further preferred scheme, the anti-stick coating, with a thickness of 1-10um.
In further preferred scheme, the frosted aging-resistant layer, with a thickness of 1-10um.
In further preferred scheme, abrasive particle is contained in the frosted aging-resistant layer, the abrasive particle is to have
The combination of machine particle, inorganic particulate or both.
In further preferred scheme, the organic filler is PMMA, PBMA, PDMS, and the inorganic particulate is SiO2、
Al2O3、ZrO2。
In further preferred scheme, the first high light transmission film substrate layer, with a thickness of 50-200um.Further
In preferred scheme, the first film substrate layer is the PET film of high light transmission, 90% or more light transmittance.
In further preferred scheme, first, second glue film can be POE glue film, 90% or more light transmittance, thickness
For 100-300um.
In further preferred scheme, the second film substrate layer is PET, PEN or PBT film of high light transmission, thoroughly
90% or more light rate, with a thickness of 50-200um.
In further preferred scheme, the modified primary coat coating may be selected to be acrylic acid, gather with a thickness of 1-15um
Urethane or polyester type coating.
In further preferred scheme, the aqueous vapor separation layer, with a thickness of 1-30um.
A kind of encapsulation foreboard provided by the utility model will obtain following beneficial better than the relevant technologies without limitation
Effect it is one or more:
1. the ageing-resistant coating of uniform fold frosted on film substrate protects the aqueous vapor separation layer and battery of composite membrane lower part
Component improves foreboard material wear-resistant, scratch-resistant and ageing-resistant performance；
2. the surface layer of composite membrane uses silicone oil, coating is fine and close, realizes anti-sticking and automatically cleaning；
3. the setting of aqueous vapor separation layer can make water vapor transmittance up to 10-5g/m2/ day；
4. the flexible front plate package parts of the utility model composite membrane composition, close adhesion between each tunic, compound journey
Degree is high, excellent combination property, has stable anti-fingerprint damage resistant, lower water vapor transmittance, property, low cost, packaging technology letter
Single efficient, the higher advantage of yields meets the mobile energy service life requirement of consumption category.
Detailed description of the invention
Fig. 1 is the schematic diagram of the encapsulation foreboard composite membrane of the utility model one embodiment.
Fig. 2 is the schematic diagram of the encapsulation foreboard composite membrane of the utility model one embodiment.
Wherein appended drawing reference are as follows: 1- anti-stick coating, 2- frosted aging-resistant layer, 3- the first film substrate layer, the second glue film of 4-
Layer, the second film substrate of 5- layer, 6- modified primary coat coating, 7- aqueous vapor separation layer, the first adhesive film of 8-, 9-PE protective film.
Specific embodiment
Hereinafter, will be made in conjunction with Figure of description and specific embodiment to the technical solution of the utility model and advantage
More detailed explanation and explanation.It should be understood that is presented in specification, specific embodiment and Figure of description is interior
Hold, just to clearly illustrate the technical solution of the utility model and its advantage, not to the protection of the utility model
Range is construed as limiting.Those skilled in the art reasonable can convert on the basis of specification disclosure for various
Technical solution after to variation, without departing from the spirit of the utility model, the technical solution after various change is included in this
Within the protection scope of utility model.
Embodiment 1
The present embodiment encapsulates foreboard, consisting of it is closely covered on the composite membrane of solar cell module upper surface, by
Multilayer film is combined.Wherein, 1 is anti-stick coating, with a thickness of preferred 1-10um, more preferably 3-8um, more preferably
5um is distributed in the upper surface of encapsulation foreboard composite membrane, has anti-sticking, dust-proof, automatic cleaning action；2 be the ageing-resistant painting of frosted
Layer, with a thickness of preferred 1-10um, more preferably 3-8um, more preferably 5um, this layer of concrete composition preferably comprises machine or nothing
The abrasive particle of machine, such as organic filler select PMMA, PBMA, PDMS, and the inorganic particulate is SiO2、Al2O3、ZrO2, more excellent
Selection of land contains antiaging agent, which has wear-resisting, scratch-resistant, ageing-resistant effect；3 be the first film substrate layer, with a thickness of preferably
50-200um, more preferably 80-150um, more preferably 100-120um, the first film substrate is preferably high light transmission
PET film, it is seen that light transmittance be 90% or more, the layer have high light transmission effect；4 be the first adhesive film, preferably thermoplastic
Type glue film, first adhesive film are preferably POE glue film, 90% or more light transmittance, with a thickness of 100-300um, more preferably
150-250um, more preferably 180-220um, more preferably 200um, which has high light transmission effect, while playing viscous
It connects, transitional function；5 be the second film substrate layer, and the film substrate layer is preferably PET, PEN or PBT film of high light transmission, thoroughly
90% or more light rate, with a thickness of 50-200um, more preferably 80-150um, more preferably 100-120um, which has height
Light transmission effect；6 be that modified primary coat coating should with a thickness of preferred 1-15um, more preferably 3-12um, more preferably 5-8um
Layer has weatherability effect；7 be aqueous vapor separation layer, with a thickness of preferred 1-30um, more preferably 5-25um, more preferably
10-20um, more preferably 15um, this layer have the function of obstructing steam.
The specific preparation process of the present embodiment encapsulation foreboard are as follows:
Step 1: abrasive particle, antiaging agent being mixed with organic polymer solution, 2000 turns/min of high-speed mixer is stirred
It mixes, is uniformly mixed, it is wet by the common coating method preparation frosted coating such as blade coating, roller coating in the upper surface of the first film substrate 3
Film, wet film are formed by curing continuous frosted coating dry film after UV irradiates 10-50S at a temperature of 50-100 DEG C, i.e. layer 2 in Fig. 1,
Wherein abrasive particle can be organic fillers or the SiO such as PMMA, PBMA, PDMS2、Al2O3、ZrO2Equal inorganic particulates, organic high score
Sub- solution is often one or both of materials such as acrylic compounds, polyurethanes；
Step 2: the composite membrane prepared using step 1 is coated with silicone oil by modes such as blade coating, line paintings in 2 upper surface of film layer
Solution prepares anti-sticking dry film after 140-160 DEG C of high temperature drying 1-5min of oven heat high temperature, i.e. layer 1 in Fig. 1.
Step 3: using the second film substrate layer 5, modified primary coat coating wet film is coated in 5 lower surface of layer, through high temperature 70-90
Primary coat coating dry film, i.e. layer 6 in Fig. 1 are formed after DEG C dry, this coating can be the coatings such as acrylic acid, polyurethane, polyesters；
Step 4: the composite membrane prepared using step 3 uses atom layer deposition process, magnetron sputtering work in 6 lower surface of layer
The water vapor rejections such as skill film often prepares aqueous vapor separation layer 7 with preparation process；
Step 5: the composite membrane for successively preparing step 2, the first glue film 4, step 4 prepare composite membrane, from top to bottom according to
It is secondary press it is compound, wherein first adhesive film upper surface and the first film substrate layer lower surface bond, first glue
Film layer lower surface and the aqueous vapor separation layer upper surface bond, and it is compound to carry out preliminary hot pressing by continuous high temperature roll squeezer, and receives
Volume obtains finished product.
Described in the present embodiment encapsulate foreboard composite membrane schematic diagram as shown in Figure 1, its encapsulate foreboard composite membrane from up to
Under, including anti-stick coating 1, frosted aging-resistant layer 2, the first film substrate layer 3, the first adhesive film 4, the second film substrate layer 5, change
Property primary coat coating 6, aqueous vapor separation layer 7.
The flexible solar being arranged by above-mentioned structure of composite membrane encapsulates foreboard, wear-resisting scratch-resistant, water preventing ability, translucency,
The performance of weatherability etc. has apparent improvement.
Embodiment 2
Further to adjust and optimizing the structure and comprehensive performance that the utility model flexible solar battery encapsulates foreboard, this
Embodiment 2 makes following improvement to structure and its preparation process on the basis of embodiment 1 encapsulates foreboard.
Preferably, on the basis of the encapsulation foreboard of embodiment 1, compound second adhesive film in 7 lower surface of aqueous vapor separation layer
8。
It is furthermore preferred that the compound PE protective film 9 in 8 lower surface of the second adhesive film.
In the present embodiment, aqueous vapor separation layer 7 is designed as not covering directly with solar cell module and be contacted by design person, in
Between between alternating floor glue film 8, be on the one hand avoided that battery component generate water and gas breaks aqueous vapor separation layer, on the other hand also can
It avoids the substances such as EVA from contacting with solar panel and causes circuit break and short circuit problem；Wherein, 8 be the second adhesive film, preferably hot
Plastotype glue film, thermoplastics type's glue film are preferably POE glue film, 90% or more light transmittance, with a thickness of 100-300um, more preferably
150-250um, more preferably 180-220um, more preferably 200um, this layer play the role of bonding, isolation, are encapsulating
When foreboard encapsulates, which can closely be bonded in the upper surface of solar panel；9 be PE protective film, the protection
Film is easily torn, and plays the role of protection packaging foreboard finished composite film, and foreboard composite membrane needs to be packaged are packaged in solar energy
When battery surface, this layer of protective film is opened.
The preparation process that foreboard is encapsulated in the present embodiment, is to make following optimization, example in the preparation process of embodiment 1
Such as:
Preferably, further include following steps in the step 5 on the basis of the preparation process of embodiment 1: pressing compound
When, the second adhesive film 8 is added, is bonded with the aqueous vapor separation layer lower surface.
It is furthermore preferred that further including following steps in the step 5: pressing compound tense, it is anti-sticking fluorine-containing thin that high temperature resistant is added
Film is bonded with 8 lower surface of the second adhesive film, compound by the preliminary hot pressing of continuous high temperature roll squeezer progress, after cooling
It replaces PE protective film 9 and winds and obtain finished product.
Described in the present embodiment encapsulate foreboard composite membrane schematic diagram as shown in Fig. 2, its encapsulate foreboard composite membrane from up to
Under, including anti-stick coating 1, frosted aging-resistant layer 2, the first film substrate layer 3, the first adhesive film 4, the second film substrate layer 5, change
Property primary coat coating 6, aqueous vapor separation layer 7, the second adhesive film 8, PE protective layer 9.
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 mobile solar cell module upper surface when, packaging method conventional in the prior art can be used.Such as can specifically according to
Following step first prepares the mold to match with packaged solar panel, in one layer of glue of mould inner surface spray sintering
Mold materials, 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 provided by the utility model (containing PE protective film if any composite membrane, first tear this layer of protective film off) is covered,
It is then placed in laminating machine to be packaged, cooling is carried out after taking-up, is demoulded.
The utility model be applied to flexible solar battery encapsulation foreboard, damage resistant, lower water vapor transmittance, it is low at
Originally, packaging technology is simple and efficient, and yields is higher, can satisfy the mobile energy service life requirement of consumption category.
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 " only", it is no
Can also then have another part or other parts, term used usually can be odd number but can also indicate plural form.
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 ".In
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 (9)
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 anti-stick coating, frosted aging-resistant layer, the first film substrate layer, the first adhesive film,
Two film substrate layers, modified primary coat coating, aqueous vapor separation layer.
2. a kind of encapsulation foreboard according to claim 1, which is characterized in that the aqueous vapor separation layer lower surface compound second
Adhesive film.
3. a kind of encapsulation foreboard according to claim 2, which is characterized in that the compound PE in second adhesive film lower surface is protected
Cuticula.
4. a kind of encapsulation foreboard according to claim 3, which is characterized in that contain frosted grain in the frosted aging-resistant layer
Son, the abrasive particle are the combination of organic filler, inorganic particulate or both.
5. a kind of encapsulation foreboard according to claim 4, which is characterized in that the organic filler be PMMA, PBMA,
PDMS, the inorganic particulate are SiO2、Al2O3、ZrO2。
6. -5 any a kind of encapsulation foreboard according to claim 1, which is characterized in that the first film substrate layer is height
The PET film of light transmission, 90% or more light transmittance.
7. -5 any a kind of encapsulation foreboard according to claim 1, which is characterized in that first, second glue film can be
POE glue film, 90% or more light transmittance, with a thickness of 100-300um.
8. -5 any a kind of encapsulation foreboard according to claim 1, which is characterized in that the second film substrate layer is height
PET, PEN or PBT film of light transmission, 90% or more light transmittance.
9. -5 any a kind of encapsulation foreboard according to claim 1, which is characterized in that the modified primary coat coating, thickness
For 1-15um, acrylic acid, polyurethane or polyester type coating may be selected to be.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821567646.8U CN209658202U (en) | 2018-09-25 | 2018-09-25 | A kind of encapsulation foreboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821567646.8U CN209658202U (en) | 2018-09-25 | 2018-09-25 | A kind of encapsulation foreboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209658202U true CN209658202U (en) | 2019-11-19 |
Family
ID=68505216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821567646.8U Active CN209658202U (en) | 2018-09-25 | 2018-09-25 | A kind of encapsulation foreboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209658202U (en) |
-
2018
- 2018-09-25 CN CN201821567646.8U patent/CN209658202U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201230 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. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211029 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 |