CN207602588U - A kind of compound encapsulation structure of component - Google Patents
A kind of compound encapsulation structure of component Download PDFInfo
- Publication number
- CN207602588U CN207602588U CN201721127166.5U CN201721127166U CN207602588U CN 207602588 U CN207602588 U CN 207602588U CN 201721127166 U CN201721127166 U CN 201721127166U CN 207602588 U CN207602588 U CN 207602588U
- Authority
- CN
- China
- Prior art keywords
- cell piece
- adhesive film
- packaging adhesive
- backboard
- component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
The utility model discloses a kind of compound encapsulation structures of component, including panel, the first packaging adhesive film, cell piece, the second packaging adhesive film and backboard, the panel, the first packaging adhesive film, cell piece, the second packaging adhesive film and backboard stack gradually composition laminates, confluence main gate line is provided on the cell piece, after confluence main gate line is connected to terminal box by the through-hole extraction on the backboard, photovoltaic module is prepared.The compound encapsulation structure that the utility model uses can integrate the advantage of two kinds of materials of EVA and POE, the transparent EVA film of high light transmission is laminated right over battery strings main body section, good optical absorption is realized in solar cell response short-wave band, the strong POE films of water vapor barrier property are laminated in cell piece main body section surrounding, it ensure that the safety and permanent resistance to ag(e)ing that component runs under hot and humid environment, enable the components to long-acting use.
Description
Technical field
The utility model is related to photovoltaic module technical fields, and in particular to a kind of compound encapsulation structure of component, it is especially suitable
For sealing the black silicon cell that short-wave band has good optical to absorb.
Background technology
Solar cell module is the committed step in manufacture of solar cells, and the encapsulation of battery can not only make battery
Service life is guaranteed, and also enhances the anti-shock strength of battery.The high quality of product and high life are that win can customer satisfaction
Key, so the package quality of component palette is extremely important.The common packaging technology flow of solar cell module is：Battery is examined
Survey → front welding → back serial connection → laying → lamination → Welding junction box → module testing → appearance test → packaging and storage.
Wherein, refer to when laying main by glass, EVA, battery, the setting of backboard lamination.At present, the packaging plastic of solar double-glass assemblies laying lamination
Film mainly includes EVA adhesive film and POE glued membranes, and EVA adhesive film is a kind of ethylene-vinyl acetate copolymer, low with fusing point, mobility
Well, the advantages that transparency is high, and laminating technology is ripe, is the main encapsulating material of current solar double-glass assemblies.But since EVA adhesive film is strong
To spend low, water vapour permeability and water absorption rate are larger, and weatherability is poor, need to carry out edge sealing in solar double-glass assemblies, however just
It is remained on during normal use and has steam transmission, glued membrane is caused to be atomized, influences light transmittance, reduces the generated energy of component.And POE
It is a kind of ethylene-pungent dilute copolymer, relative to EVA adhesive film, the advantage of POE glued membranes maximum is exactly low water vapor transmittance and high volume
Resistivity ensure that safety and permanent resistance to ag(e)ing that component runs under hot and humid environment, enable the components to long-acting
It uses.Therefore, it is difficult to take into account the good optics suction of high grade of transparency matching short-wave band simultaneously using single photovoltaic component encapsulating glued membrane
Receive and low water absorption, high-insulativity, strong weatherability edge sealing advantage.
For such as reactive ion dry etch process（RIE）The black silicon solar cell cell piece prepared, cell piece are special
Point is that the shortwave end more conventional cell piece of response is good, so as to capture the opto-electronic conversion effect that more solar energies improve cell pieces
Rate.As poor in merely with POE material packages, being limited to its shortwave translucency, encapsulation power attenuation is larger, it is impossible to embody such electricity
The advantage of pond piece.
Utility model content
The purpose of this utility model is that：For the above-mentioned technical problems in the prior art, a kind of component is provided
Compound encapsulation structure.
The utility model is achieved through the following technical solutions：
A kind of compound encapsulation structure of component, including panel, the first packaging adhesive film, cell piece, the second packaging adhesive film and the back of the body
Plate, the panel, the first packaging adhesive film, cell piece, the second packaging adhesive film and backboard stack gradually composition laminates, the battery
On piece is provided with confluence main gate line, after confluence main gate line is connected to terminal box by the through-hole extraction on the backboard, is prepared into
To photovoltaic module.
Further, the panel is high transparent glass, must be had very for wavelength of the wavelength in 350nm to 1200nm ranges
High light transmission.
Further, first packaging adhesive film is transparent EVA (ethylene-vinyl acetate copolymer) and POE (ethylene-pungent dilute
Copolymer) composite membrane.
Further, the cell piece is connected as battery strings via welding series welding, and cell piece and cell piece spacing 2.5mm~
4.5mm, battery strings are arranged in parallel with battery strings, battery strings spacing 2.5mm~4.5mm.
Further, second packaging adhesive film is white EVA (ethylene-vinyl acetate copolymer) and POE (ethylene-pungent dilute
Copolymer) composite membrane.
Further, the backboard uses glass or resinous flat.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are：
1st, the compound encapsulation structure that the utility model uses can integrate the advantage of two kinds of materials of EVA and POE, battery strings master
The transparent EVA film of high light transmission is laminated right over body region, good optical absorption is realized in solar cell response short-wave band,
The strong POE films of water vapor barrier property are laminated in cell piece main body section surrounding, ensure that component was run under hot and humid environment
Safety and permanent resistance to ag(e)ing, enable the components to long-acting use.
2nd, first packaging adhesive film of the utility model and the second packaging adhesive film select EVA and POE composite membranes, EVA and POE
Hot melt is similar, and melting temperature approaches, and alkyl and carbonyl can form good bonding after heating in laminating machine, and practical operation is simple,
It is easily achieved.
Description of the drawings
Fig. 1 is a kind of compound encapsulation structure figure of component；
Fig. 2 is the first packaging adhesive film composite material schematic diagram；
Fig. 3 is the second packaging adhesive film composite material schematic diagram；
Fig. 4 is cell piece series connection schematic diagram；
Shown in figure：1-panel, the 2-the first packaging adhesive film, 21-transparent EVA (ethylene-acetate ethylene copolymer) are thin
Film, 22-POE (ethylene-pungent dilute copolymer) film, 3-cell piece, the 4-the second packaging adhesive film, 41-white EVA (ethylene-
Acetate ethylene copolymer) film, 42-POE (ethylene-pungent dilute copolymer) film, 5-backboard, 6-confluence main gate line, 71-electricity
Pond piece and cell piece spacing, 72-battery strings and battery strings spacing.
Specific embodiment
All features or disclosed all methods disclosed in this specification or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
This specification（Including any accessory claim, abstract）Disclosed in any feature, unless specifically stated,
It is replaced by other equivalent or with similar purpose alternative features.That is, unless specifically stated, each feature is a series of
An example in equivalent or similar characteristics.
As shown in Figure 1, a kind of compound encapsulation structure of component, including panel 1, the first packaging adhesive film 2, cell piece 3, second
Packaging adhesive film 4 and backboard 5, the panel 1, the first packaging adhesive film 2, cell piece 3, the second packaging adhesive film 4 and backboard 5 stack gradually
Laminates are formed, confluence main gate line 6 is provided on the cell piece 3, confluence main gate line 6 is drawn by the through-hole on the backboard 5
Go out after being connected to terminal box, photovoltaic module is prepared.
The packaging method of component as described above, includes the following steps：
1st, panel 1, the first packaging adhesive film 2, cell piece 3, the second packaging adhesive film 4 and backboard 5 are stacked gradually composition to be laminated
Part is provided with confluence main gate line 6 on cell piece 3；
Wherein, panel 1 is high transparent glass, must be had in the wavelength of 350nm to 1200nm ranges for wavelength very high
Light transmission；As shown in Fig. 2, first packaging adhesive film 2 is transparent EVA (ethylene-vinyl acetate copolymer) film 21 and POE (second
Alkene-pungent dilute copolymer) film 22 composite material, the transparent EVA film 21 of high light transmission is laminated right over 3 main body section of cell piece
（Ethylene-acetate ethylene copolymer）, surrounding away from 10~50mm of module edge, do not cover envelope right over 3 main body section of cell piece
It fills position and the strong POE films 22 (ethylene-pungent dilute copolymer) of water vapor barrier property, (the ethyl vinyl acetate second of transparent EVA film 21 is laminated
Alkene copolymer) it is mutually had a common boundary with POE films 22 (ethylene-pungent dilute copolymer)；As shown in figure 4, the cell piece 3 is via welding series welding
Battery strings, cell piece and 71 2.5mm of cell piece spacing~4.5mm are connected as, battery strings are arranged in parallel with battery strings, battery strings
With 72 2.5mm of battery strings spacing~4.5mm；As shown in figure 3, second packaging adhesive film 4 is white EVA (ethyl vinyl acetate second
Alkene copolymer) 42 composite material of film 41 and POE (ethylene-pungent dilute copolymer) film, battery strings main body section underface is laminated
The white eva film of high reflectance（Ethylene-vinyl acetate copolymer）41, encapsulation position of the surrounding away from 10~50mm of module edge
The strong POE films (ethylene-pungent dilute copolymer) 42 of water vapor barrier property are laminated；First packaging adhesive film 2 and the second packaging adhesive film 4
Eva film and POE film dimensions are consistent respectively；The eva film selected in first packaging adhesive film 2 and the second packaging adhesive film 4
Similar with POE film hot melts, melting temperature approaches, and melt temperature scope is 60 DEG C~100 DEG C；The material of the backboard 5 is
Glass or resinous flat；
2nd, the encapsulation laminates are placed in laminating machine, low temperature is vacuumized and heated；
3rd, the encapsulation laminates are bonded to form laminate；
4th, the laminate is taken out after cooling down；
5th, after the confluence main gate line 6 of the laminate being connected to terminal box by the through-hole extraction on the backboard 5, system
It is standby to obtain photovoltaic module.
The utility model is compared with existing general components packaging method, if individually using conventional photovoltaic component package EVA
Glued membrane edge sealing, advantage is light transmittance >=91%, but EVA adhesive film intensity is low, and water vapour permeability and water absorption rate are larger, weather-proof
Property it is poor, easily lead to glued membrane atomization, influence light transmittance, reduce the generated energy of component；If it is individually sealed using conventional photovoltaic component
POE glued membrane edge sealing is filled, advantage is：Water absorption rate is low, and water vapor transmittance is low, good insulating, no acidic release, weather-proof excellent, resists
PID has an innate advantage, and impedance value EVA is generally 10 14 powers, but POE glued membrane uniformities are difficult to control and transparent difference, especially
It cannot realize good optical match with black silicon solar cell response wave band, directly affect battery component opto-electronic conversion effect
Rate considerably increases component package loss；The component compound encapsulation structure that the utility model uses can integrate EVA and POE two
The transparent EVA film of high light transmission is laminated in the advantage of kind material, battery strings main body section surface, and shortwave is responded in solar cell
The good optical absorptions of Duan Shixian, cell piece main body section surrounding are laminated the strong POE films of water vapor barrier property, ensure that component exists
The safety run under hot and humid environment and permanent resistance to ag(e)ing, enable the components to long-acting use.
Particular embodiments described above has carried out into one the purpose of this utility model, technical solution and advantageous effect
Step is described in detail, it should be understood that the foregoing is merely specific embodiment of the utility model, is not limited to this
Utility model.The utility model expands to any new feature disclosed in the present specification or any new combination and discloses
Any new method or process the step of or any new combination.
Claims (4)
1. a kind of compound encapsulation structure of component, which is characterized in that including panel, the first packaging adhesive film, cell piece, the second encapsulation
Glued membrane and backboard, the panel, the first packaging adhesive film, cell piece, the second packaging adhesive film and backboard stack gradually composition laminates,
Confluence main gate line is provided on the cell piece, confluence main gate line is connected to terminal box by the through-hole extraction on the backboard
Afterwards, photovoltaic module is prepared.
2. the compound encapsulation structure of component as described in claim 1, which is characterized in that the panel is high transparent glass, right
There is high light transmission in the wavelength of 350nm to 1200nm ranges in wavelength.
3. the compound encapsulation structure of component as described in claim 1, which is characterized in that the cell piece connects via welding series welding
Battery strings, cell piece and cell piece spacing 2.5mm~4.5mm are connected in, battery strings are arranged in parallel with battery strings, battery strings spacing
2.5mm~4.5mm.
4. the compound encapsulation structure of component as described in claim 1, which is characterized in that the backboard is put down using glass or resin
Plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721127166.5U CN207602588U (en) | 2017-09-05 | 2017-09-05 | A kind of compound encapsulation structure of component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721127166.5U CN207602588U (en) | 2017-09-05 | 2017-09-05 | A kind of compound encapsulation structure of component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207602588U true CN207602588U (en) | 2018-07-10 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721127166.5U Expired - Fee Related CN207602588U (en) | 2017-09-05 | 2017-09-05 | A kind of compound encapsulation structure of component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207602588U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584661A (en) * | 2020-04-30 | 2020-08-25 | 晋能清洁能源科技股份公司 | Transverse multilayer co-extrusion adhesive film and cutting assembly structure and packaging method thereof |
| CN115074039A (en) * | 2022-07-07 | 2022-09-20 | 上海晶澳太阳能科技有限公司 | Packaging adhesive film, solar cell module and preparation method |
-
2017
- 2017-09-05 CN CN201721127166.5U patent/CN207602588U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584661A (en) * | 2020-04-30 | 2020-08-25 | 晋能清洁能源科技股份公司 | Transverse multilayer co-extrusion adhesive film and cutting assembly structure and packaging method thereof |
| CN111584661B (en) * | 2020-04-30 | 2022-09-06 | 晋能清洁能源科技股份公司 | Transverse multilayer co-extrusion adhesive film and cutting assembly structure and packaging method thereof |
| CN115074039A (en) * | 2022-07-07 | 2022-09-20 | 上海晶澳太阳能科技有限公司 | Packaging adhesive film, solar cell module and preparation method |
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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: 20180710 Termination date: 20210905 |
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| CF01 | Termination of patent right due to non-payment of annual fee |