CN212860683U - Photovoltaic module and packaging adhesive film for same - Google Patents
Photovoltaic module and packaging adhesive film for same Download PDFInfo
- Publication number
- CN212860683U CN212860683U CN202020545379.5U CN202020545379U CN212860683U CN 212860683 U CN212860683 U CN 212860683U CN 202020545379 U CN202020545379 U CN 202020545379U CN 212860683 U CN212860683 U CN 212860683U
- Authority
- CN
- China
- Prior art keywords
- adhesive film
- film layer
- photovoltaic module
- layer
- film
- 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.)
- Active
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
- Y02E10/52—PV systems with concentrators
Abstract
The utility model discloses a photovoltaic module is with encapsulation glued membrane and photovoltaic module. The packaging adhesive film for the photovoltaic module is used for a lower side adhesive film of a photovoltaic module battery piece and at least comprises two adhesive film layers, wherein the adhesive film layer with the highest reflectivity in each adhesive film layer is arranged close to the battery piece. The packaging adhesive film for the photovoltaic module has a multilayer structure, and can solve the problems of low reflection efficiency, high cost and the like.
Description
Technical Field
The utility model belongs to the technical field of photovoltaic module, especially, relate to a photovoltaic module is with encapsulation glued membrane and photovoltaic module.
Background
Photovoltaic power generation is more and more popular due to the characteristics of cleanness, environmental protection, reproducibility and the like, and is rapidly developed in recent years. The encapsulant film used for the photovoltaic module has an important influence on the performance and service life of the photovoltaic module.
The adhesive film for packaging the solar cell is generally divided into an adhesive film for the front side and an adhesive film for the back side, the adhesive film for the front side generally requires higher light transmittance so that more sunlight can be absorbed by the cell, and the adhesive film for the back side generally requires higher reflectivity so that the sunlight leaking from the cell is reflected to the cell through the adhesive film for the back side to be secondarily utilized, so that the power generation efficiency is improved, and the power generation cost is reduced. The conventional method is as disclosed in patent JP1994177412A, the effect of increasing the power of the photovoltaic module can be achieved by adding a high-reflection filler into the packaging adhesive film, but the method has the defect of high price.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems in the prior art, the common single-layer packaging adhesive film cannot be solved. Therefore, the utility model provides a photovoltaic module is with encapsulation glued membrane and photovoltaic module. The packaging adhesive film for the photovoltaic module has a multilayer structure, and can solve the problems of low reflection efficiency, high cost and the like.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a photovoltaic module is with encapsulation glued membrane for the downside glued membrane of photovoltaic module battery piece includes two-layer glued membrane layer at least, the glued membrane layer that the reflectivity is the highest among each glued membrane layer is close to the battery piece and sets up.
Preferably, the packaging adhesive film for the photovoltaic module comprises a first adhesive film layer and a second adhesive film layer, the first adhesive film layer is a reflective adhesive film layer, the reflectivity of the reflective adhesive film layer to light with a wavelength range of 400-1100nm is not less than 90%, the packaging adhesive film for the photovoltaic module is used on the back surface of the cell piece, and the first adhesive film layer is arranged close to the cell piece.
Preferably, the reflectivity of the reflective adhesive film layer to light with the wavelength range of 400-700nm is more than or equal to 90%.
Preferably, the second adhesive film layer is a reflective adhesive film layer or a transparent layer.
Preferably, the reflectivity of the first adhesive film layer is greater than that of the second adhesive film layer.
Preferably, the packaging adhesive film for the photovoltaic module further comprises a third adhesive film layer, the first adhesive film layer and the third adhesive film layer are respectively arranged on two sides of the second adhesive film layer, and the third adhesive film layer is a reflective adhesive film layer or a transparent layer.
Preferably, the reflectivity of the third adhesive film layer is smaller than that of the second adhesive film layer when the third adhesive film layer is a reflecting adhesive film layer.
Preferably, the reflective adhesive film layer is a matrix resin in which a reflective filler is dispersed.
Preferably, the particle size D50 of the reflective filler is less than or equal to 1 μm.
Preferably, the pre-crosslinking degree of the packaging adhesive film is 0.5-70%.
The invention also provides a photovoltaic module which comprises the packaging adhesive film for the photovoltaic module, wherein the first adhesive film layer of the packaging adhesive film is arranged close to the cell.
Preferably, the thickness of the packaging adhesive film for the photovoltaic module is 0.1-1 mm.
The utility model discloses a photovoltaic module is with encapsulation glued membrane has multilayer structure, superposes mutually through the reflection glued membrane layer that the reflection degree is different, utilizes the filler cooperation of the difference of reflection efficiency to use, can show the cost that reduces the encapsulation glued membrane.
Drawings
Fig. 1 is a schematic view of a packaging adhesive film for a photovoltaic module according to an embodiment.
FIG. 2 is a second schematic view of a packaging film for photovoltaic module according to the embodiment.
Description of reference numerals:
100-packaging adhesive film, 101-first adhesive film layer, 102-second adhesive film layer, and 103-third adhesive film layer.
Detailed Description
The following specific examples are further illustrative of the methods and solutions provided by the present invention, but should not be construed as limiting the invention.
Fig. 1 to 2 are cross sections schematically showing the structure of the encapsulant film for photovoltaic modules of the present embodiment. The thicknesses of the structures in fig. 1 to 2 are shown as examples, and the dimensions of the structures of the encapsulating film for photovoltaic modules according to the present invention are not limited to those shown in fig. 1 to 2.
The reagents, materials, and the like used in the present embodiment are commercially available unless otherwise specified.
Fig. 1 shows an example of an encapsulant film for a photovoltaic module, the encapsulant film 100 including a first film layer 101 and a second film layer 102.
In one example of a specific embodiment, the first adhesive film layer 101 and the second adhesive film layer 102 are both reflective adhesive film layers. Wherein, the reflectance of the first adhesive film layer 101 is preferably in the range of 90-96% (for light with the wavelength of 400nm-1100 nm), the reflectance of the second adhesive film layer 102 is preferably in the range of 40-65% (for light with the wavelength of 400nm-1100 nm), and the reflectance of the first adhesive film layer 101 is greater than that of the second adhesive film layer 102.
The first adhesive film layer 101 and the second adhesive film layer 102 have high reflectivity by dispersing reflective fillers in a common packaging adhesive film matrix resin. The matrix resin is a copolymer suitable for the encapsulation performance of the photovoltaic module, and can be a copolymer of ethylene and one or more monomers, such as EVA and POE.
The filler with the reflection function comprises but is not limited to one or more of titanium dioxide, calcium carbonate, wollastonite, mica powder, magnesium hydroxide, aluminum hydroxide, composite titanium dioxide, talcum powder, barium sulfate, glass beads and zinc sulfide. The particle diameter D50 of the reflective filler is preferably 1 μm or less. The addition amount of the reflective filler in the packaging adhesive film is determined according to the comprehensive consideration of the adhesive film performance and the cost.
In an example of the specific implementation, the reflective filler of the first adhesive film layer 101 is titanium dioxide, and the reflective filler of the second adhesive film layer 102 is calcium carbonate or glass beads.
The total thickness of the packaging adhesive film for the photovoltaic module is preferably 0.1-1 mm, wherein the thickness of the first adhesive film layer is preferably 0.05-0.5 mm, more preferably 0.1-0.3 mm, the thickness of the second adhesive film layer is preferably 0.05-0.5 mm, more preferably 0.2-0.4 mm, and the pre-crosslinking degree of the packaging adhesive film is 0.5-70%.
In one example of the specific implementation, the first adhesive film layer 101 is a reflective adhesive film layer, and the second adhesive film layer is a transparent layer. Wherein, the reflecting glue film layer is the same as the above, and the transparent layer is a glue film with the light transmittance of more than 90 percent. The total thickness of the packaging adhesive film for the photovoltaic module is preferably 0.1-1 mm, wherein the thickness of the first adhesive film layer is preferably 0.05-0.5 mm, more preferably 0.1-0.3 mm, and the thickness of the second adhesive film layer is preferably 0.05-0.5 mm, more preferably 0.1-0.3 mm.
Fig. 2 shows another example of a packaging adhesive film for a photovoltaic module, the packaging adhesive film 100 includes a first adhesive film layer 101, a second adhesive film layer 102, and a third adhesive film layer 103, and the first adhesive film layer 101 and the third adhesive film layer 103 are respectively disposed on two sides of the second adhesive film layer 102.
In one example of the specific implementation, the first glue film layer 101, the second glue film layer 102 and the third glue film layer 103 are all reflective glue film layers, and are the same as the aforementioned reflective glue film layers, and the third glue film layer < the second glue film layer < the first glue film layer in terms of the reflectivity. The total thickness of the packaging adhesive film for the photovoltaic module is preferably 0.1-1 mm, wherein the thickness of the first adhesive film layer is preferably 0.1-0.3 mm, the thickness of the second adhesive film layer is preferably 0.1-0.3 mm, and the thickness of the third adhesive film layer is preferably 0.2-0.4 mm.
In one example of the specific embodiment, the first adhesive film layer 101 and the second adhesive film layer 102 are reflective adhesive film layers, the same as the aforementioned reflective adhesive film layers, in order of reflectivity, and the second adhesive film layer < the first adhesive film layer, and the third adhesive film layer 103 are transparent layers, the same as the aforementioned transparent layers. The total thickness of the packaging adhesive film for the photovoltaic module is preferably 0.1-1 mm, wherein the thickness of the first adhesive film layer is preferably 0.1-0.3 mm, the thickness of the second adhesive film layer is preferably 0.1-0.3 mm, and the thickness of the third adhesive film layer is preferably 0.2-0.4 mm.
In addition, the present embodiment further provides a photovoltaic module, which is configured as glass/packaging adhesive film/battery piece/packaging adhesive film/glass according to the structure, the packaging adhesive film may adopt any one of the above-mentioned packaging adhesive films, and the first adhesive film layer of the packaging adhesive film for the photovoltaic module is disposed close to the battery piece.
The above description of the embodiments is only intended to aid understanding of the method of the present invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (8)
1. A packaging adhesive film for a photovoltaic module is used for a lower adhesive film of a photovoltaic module cell, and is characterized by comprising at least two adhesive film layers, wherein the adhesive film layer with the highest reflectivity in each adhesive film layer is arranged close to the cell;
the photovoltaic module packaging adhesive film comprises a first adhesive film layer and a second adhesive film layer, wherein the first adhesive film layer is a reflecting adhesive film layer, the reflectivity of the reflecting adhesive film layer to light with the wavelength range of 400-1100nm is larger than or equal to 90%, the photovoltaic module packaging adhesive film is used on the back surface of a cell piece, and the first adhesive film layer is arranged close to the cell piece.
2. The encapsulant film as claimed in claim 1, wherein the reflectivity of the reflective film layer to light with wavelength of 400-700nm is greater than or equal to 90%.
3. The encapsulant film for photovoltaic module as claimed in claim 1, wherein the second film layer is a reflective film layer or a transparent layer.
4. The encapsulant film as claimed in claim 1, wherein the reflectivity of the first film layer is greater than the reflectivity of the second film layer.
5. The encapsulant film for photovoltaic module as claimed in claim 1, further comprising a third film layer, wherein the first and third film layers are disposed on two sides of the second film layer, and the third film layer is a reflective film layer or a transparent layer.
6. The encapsulant film as claimed in claim 5, wherein the third film layer has a reflectivity lower than that of the second film layer when the third film layer is a reflective film layer.
7. The encapsulant film for photovoltaic module as claimed in any one of claims 1 to 6, wherein the pre-crosslinking degree of the encapsulant film is 0.5 to 70%.
8. A photovoltaic module comprising the encapsulant film for photovoltaic module as claimed in any one of claims 1 to 6, wherein the first film layer of the encapsulant film is disposed adjacent to the cell sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020545379.5U CN212860683U (en) | 2020-04-14 | 2020-04-14 | Photovoltaic module and packaging adhesive film for same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020545379.5U CN212860683U (en) | 2020-04-14 | 2020-04-14 | Photovoltaic module and packaging adhesive film for same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212860683U true CN212860683U (en) | 2021-04-02 |
Family
ID=75186931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020545379.5U Active CN212860683U (en) | 2020-04-14 | 2020-04-14 | Photovoltaic module and packaging adhesive film for same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212860683U (en) |
-
2020
- 2020-04-14 CN CN202020545379.5U patent/CN212860683U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115274897B (en) | High-reflection photovoltaic backboard and double-sided photovoltaic module | |
| CN201936904U (en) | Solar battery pack structure capable of improving efficiency of battery | |
| JP2000091610A (en) | Cover film for solar battery and its manufacture and solar battery module using the same | |
| JP2011108725A (en) | Back sheet, solar battery back sheet, and solar battery module using the same | |
| CN115274900B (en) | Quantum dot photovoltaic backboard and double-sided photovoltaic module | |
| CN212860683U (en) | Photovoltaic module and packaging adhesive film for same | |
| CN115274901B (en) | Up-conversion photovoltaic backboard and double-sided photovoltaic module | |
| CN111087940B (en) | Light guide composite packaging adhesive film and preparation method and application thereof | |
| CN206164468U (en) | Monocrystalline silicon solar cells subassembly structure with reflector panel | |
| JP2016072540A (en) | Rear surface protective sheet and solar cell module using the same | |
| CN108735847A (en) | The composite package glued membrane and photovoltaic module of photovoltaic module | |
| CN210897309U (en) | Photovoltaic module | |
| CN213534115U (en) | White packaging adhesive film for photovoltaic module and having diffuse reflection effect on light | |
| JP6471501B2 (en) | Back surface protection sheet for solar cell module and solar cell module using the same | |
| CN210489628U (en) | Three-layer high-water-resistance high-gain PO (polyolefin) composite photovoltaic adhesive film | |
| CN113299781A (en) | Multilayer functional film for solar cell backboard, solar cell backboard and solar cell module | |
| CN112242454A (en) | Encapsulating material and photovoltaic module | |
| CN220856590U (en) | Front plate packaging structure and photovoltaic module packaging structure | |
| CN210489627U (en) | Three-layer high-reliability high-gain EVA (ethylene-vinyl acetate copolymer) and PO (polyethylene propylene oxide) composite photovoltaic adhesive film | |
| JP2012209514A (en) | Solar battery module | |
| CN210489629U (en) | Double-layer anti-PID high-gain white EVA and PO composite photovoltaic adhesive film | |
| CN211670198U (en) | Packaging adhesive film with grid structure | |
| CN214226925U (en) | Composite wear-resistant transparent back plate | |
| CN206148448U (en) | There is not white turn down rims packaging film | |
| CN220439638U (en) | Novel color photovoltaic module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |