CN202977461U - A composite backboard used for a solar energy battery - Google Patents
A composite backboard used for a solar energy battery Download PDFInfo
- Publication number
- CN202977461U CN202977461U CN 201220597745 CN201220597745U CN202977461U CN 202977461 U CN202977461 U CN 202977461U CN 201220597745 CN201220597745 CN 201220597745 CN 201220597745 U CN201220597745 U CN 201220597745U CN 202977461 U CN202977461 U CN 202977461U
- Authority
- CN
- China
- Prior art keywords
- layer
- eva
- composite
- back plate
- solar batteries
- 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 - Lifetime
Links
Images
Classifications
-
- 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 relates to a composite backboard used for a solar energy battery. The composite backboard is characterized by comprising four layers composite structures and comprising a weatherproof layer (1), an adhesive layer (2), a PET separating layer (3), and a bonding layer (4) from top to bottom. The bonding layer (4) is an EVA layer. When the composite backboard is laminated, the bonding layer (4) seals battery sheets directly and other bonding materials are prevented. Therefore, purposes of saving cost and simplifying technology are achieved while excellent comprehensive properties are acquired. The contact surface of the EVA and the battery sheets uses deep thread in order to facilitate air exhausting when the composite backboard is laminated.
Description
Technical field
The utility model relates to a kind of used for solar batteries composite back plate, is mainly used in the encapsulation of solar module.
Background technology
Photovoltaic back is positioned at the back side of solar cell, and to the effect that cell piece plays protection and supports, environment for use requires that it has insulation, weather-proof, the performance such as block water.Independent polymeric material can't satisfy the instructions for use of photovoltaic industry, and therefore the general material of which floor performance complement that adopts is bonded together.At present on the market common to the main flow structure generally form by three layers: fluoropolymer membrane (substitute)+pet layer (substitute)+tack coat (fluoropolymer membrane, modified EVA, PE, PET etc.).The solar energy backboard of these types all belongs to the gluing composite construction.
During lamination of solar battery components, need to lay one deck binding material between backboard and cell piece, generally select cross-linking type EVA glued membrane.And the tack coat structure of backboard also will have good caking property with EVA except having excellent weather resistance; The tack coat of tradition backboard generally adopts fluorine-contained film or modified EVA etc.Below the performance test of two kinds of backboard internal layer binding materials:
| ? | The uvioresistant ability | With the PET cementitiousness | To the PET protective capability | With the EVA cementitiousness |
| Fluorine-contained film | Excellent | Generally | Excellent | Good |
| Modified EVA | Generally | Excellent | Poor | Excellent |
Two kinds of structures have his own strong points, but aspect caking property and weatherability each defectiveness again, can't reach very excellent combination property.The aging of self easily occurs and variable color, delamination in backboard under the conditions such as light, heat like this, can not well sealing be played a protective role with EVA, reduces assembly useful life.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and the used for solar batteries that a kind of cost is low, manufacturing procedure is few, easy to use, production efficiency is high composite back plate is provided.
The purpose of this utility model is achieved in that a kind of used for solar batteries composite back plate, and it is four layers of composite construction, is followed successively by weathering layer, adhesive layer, PET separator and tack coat from top to bottom, and described tack coat is the EVA layer.Described adhesive layer thickness is at 300-600 μ m.
Described tack coat outer surface is provided with decorative pattern.
Described decorative pattern is brilliant, prismatic or pyramid.
Described weathering layer is the fluorine rete.
The thickness of described PET separator is 50-500 μ m, particularly preferably 100-300 μ m.
Compared with prior art, the beneficial effects of the utility model are:
The direct sealed cell sheet of tack coat when lamination and need not other binding materials.Both reach the purpose of saving cost, simplifying technique, obtained again excellent combination property; EVA and cell piece contact-making surface adopt dark decorative pattern, exhaust when being beneficial to lamination.
The bonding employing of cross-linking type EVA and PET without adhesive process, is mainly the mode that adopts extrusion coated; The pet sheet face carries out corona or plasma treatment, waits and improves its surface polarity, strengthens cementitiousness.
Description of drawings
Fig. 1 is the structural representation of a kind of used for solar batteries composite back plate of the utility model.
Fig. 2 is that the utility model uses view.
Fig. 3 is preparation technology's flow chart of the present utility model.
Fig. 4 is the utility model recombination process schematic diagram.
Wherein:
Embodiment
Referring to Fig. 1, a kind of used for solar batteries composite back plate that the utility model relates to, it is straticulate structure, is followed successively by weathering layer 1, adhesive layer 2, PET separator 3 and tack coat 4 from top to bottom.
Described tack coat 4 is the EVA(ethylene-ethyl acetate copolymer) layer, thickness is at 300-600 μ m.
Described tack coat 4 outer surfaces (even used time and cell piece contact-making surface) adopt dark decorative pattern, can be brilliants, also prismatic, pyramid.
Described weathering layer 1 is the fluorine rete.
The thickness of described PET separator 3 is 50-500 μ m, particularly preferably 100-300 μ m.
In the present embodiment, EVA can adopt conventional transparent EVA, also can adopt to contain adularescent EVA, to meet the different needs; VA content is at 16-45%, in the scope of preferred 23-40%.
Described backboard separator adopts PET, and it will pass through the surface treatments such as corona, plasma, to increase itself and tack coat cohesive force.
Preparation technology of the present utility model is referring to Fig. 3 and Fig. 4, and extrusion coated is adopted in the coating of EVA, and the melting EVA that extrudes take extruder is as adhesive, and is compound with semi-finished product under the extruding of composite roll and chill roll, through cooling and composite material that make.
Before the present embodiment dorsulum was compound, fluorine film, pet sheet face all will carry out corona or plasma treatment, to improve caking property.Extrusion temperature is at 70 ~ 110 ℃; The chill-roll temperature general control is at 10 ~ 30 ℃, the highest should not be over 60 ℃.
In sum, the utility model reaches the purpose of saving cost, optimizing machining technology operation by new bonding layer material selection and combination process.
Below embodiment has been described in detail the utility model by reference to the accompanying drawings, and those skilled in the art can make many variations to the utility model according to the above description.Thereby some details in embodiment should not consist of restriction of the present utility model, and the scope that the utility model will define with appended claims is as protection range of the present utility model.
Claims (7)
1. a used for solar batteries composite back plate, is characterized in that it is four layers of composite construction, is followed successively by weathering layer (1), adhesive layer (2), PET separator (3) and tack coat (4) from top to bottom, and described tack coat (4) is the EVA layer.
2. a kind of used for solar batteries composite back plate according to claim 1, is characterized in that, described tack coat (4) thickness is at 300-600 μ m.
3. a kind of used for solar batteries composite back plate according to claim 1 and 2, is characterized in that, described tack coat (4) outer surface is provided with decorative pattern.
4. a kind of used for solar batteries composite back plate according to claim 3, is characterized in that, described decorative pattern is brilliant, prismatic or pyramid.
5. a kind of used for solar batteries composite back plate according to claim 1 and 2, is characterized in that, described weathering layer (1) is the fluorine rete.
6. a kind of used for solar batteries composite back plate according to claim 1 and 2, is characterized in that, the thickness of described PET separator (3) is 50-500 μ m.
7. a kind of used for solar batteries composite back plate according to claim 6, is characterized in that, the thickness of described PET separator (3) is 100-300 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220597745 CN202977461U (en) | 2012-11-14 | 2012-11-14 | A composite backboard used for a solar energy battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220597745 CN202977461U (en) | 2012-11-14 | 2012-11-14 | A composite backboard used for a solar energy battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977461U true CN202977461U (en) | 2013-06-05 |
Family
ID=48518502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220597745 Expired - Lifetime CN202977461U (en) | 2012-11-14 | 2012-11-14 | A composite backboard used for a solar energy battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202977461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108582822A (en) * | 2018-02-27 | 2018-09-28 | 江苏屋堡建材科技有限公司 | A kind of preparation method of building enclosure multifunctional composite film |
-
2012
- 2012-11-14 CN CN 201220597745 patent/CN202977461U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108582822A (en) * | 2018-02-27 | 2018-09-28 | 江苏屋堡建材科技有限公司 | A kind of preparation method of building enclosure multifunctional composite film |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101764163B (en) | Back film for solar module | |
| CN103715287A (en) | Humidity-resistant and heat-resistant solar cell panel and manufacturing method thereof | |
| CN207303123U (en) | A kind of high-barrier solar cell backboard | |
| CN102637763A (en) | Solar cell backboard with excellent weathering resistance and preparation method thereof | |
| CN102376805A (en) | Solar cell backplane and manufacturing method thereof | |
| CN103560164A (en) | Fluorine-containing radiating type solar cell backboard | |
| CN203205441U (en) | Solar cell backboard and solar cell module | |
| CN202282356U (en) | High-barrier solar battery back film | |
| CN205069653U (en) | Solar cell back sheet and subassembly with space pattern | |
| CN102738280A (en) | Solar cell back membrane | |
| CN203085593U (en) | Composite solar cell back membrane | |
| CN104347741A (en) | Flexible light transmitting photovoltaic assembly and preparation method thereof | |
| CN202977461U (en) | A composite backboard used for a solar energy battery | |
| CN101817245A (en) | Solar cell pack | |
| CN102569463A (en) | Back film for back contact type solar cell and production process thereof | |
| CN102779880A (en) | Polyester tandem solar battery back film | |
| CN202293533U (en) | Composite membrane for solar cell rear panel | |
| CN102862344A (en) | Solar cell backplane | |
| CN206116421U (en) | High performance weatherability combined material encapsulates photovoltaic module | |
| CN205705610U (en) | Multilayer fluorine-contained plastic sheeting | |
| CN202934878U (en) | Fluorine-contained high-weatherability solar battery back membrane | |
| CN203055956U (en) | Coating type FPC-structure solar cell backboard | |
| CN202878836U (en) | Coated solar battery back panel | |
| CN202423327U (en) | Solar cell backboard | |
| CN203300673U (en) | Novel solar cell back membrane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200408 Address after: 201201 room 909a, building a, No. 3000, Longdong Avenue, Pudong New Area, Shanghai Patentee after: SHANGHAI HIUV NEW MATERIALS Co.,Ltd. Address before: 215600 West Road, South District, Zhangjiagang Economic Development Zone, Wuxi, Jiangsu Patentee before: AKCOME FILM & APPLIED NEW MATERIALS (SUZHOU) Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |