CN216106716U - High-reflection composite latticed packaging adhesive film and photovoltaic module - Google Patents
High-reflection composite latticed packaging adhesive film and photovoltaic module Download PDFInfo
- Publication number
- CN216106716U CN216106716U CN202122925055.1U CN202122925055U CN216106716U CN 216106716 U CN216106716 U CN 216106716U CN 202122925055 U CN202122925055 U CN 202122925055U CN 216106716 U CN216106716 U CN 216106716U
- Authority
- CN
- China
- Prior art keywords
- reflection
- adhesive film
- composite
- layer
- packaging adhesive
- 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model relates to the field of photovoltaic packaging adhesive films, in particular to a high-reflection composite latticed packaging adhesive film and a photovoltaic module, which comprise: a transparent adhesive film; the grid composite reflection layer is positioned above the transparent adhesive film and comprises: the prism reflecting layer and the infrared high-reflection black coating are covered on the prism reflecting layer; according to the high-reflection composite latticed packaging adhesive film, the grid composite reflection layer is arranged to improve the reflectivity of the gap area of the solar cell piece, and the infrared high-reflection black coating can selectively absorb ultraviolet bands on the premise of ensuring the high reflectivity, so that the temperature rise of a photovoltaic module is reduced; and because the prism reflecting layer adopts the regular polygon pyramid structure, can carry out multi-angle reflection with penetrating through infrared high reflection black coating light and obtain better utilization, consequently improved the generating efficiency when reducing the subassembly temperature.
Description
Technical Field
The utility model relates to the technical field of photovoltaic packaging adhesive films, in particular to a high-reflection composite latticed packaging adhesive film and a photovoltaic module.
Background
At present, the starting point of the renewal of solar crystalline silicon cell technology mostly centers on how to increase the power of the component. In the photovoltaic module, because gaps exist among the cells, light irradiated at the gaps cannot be fully absorbed and utilized by the cells, energy loss is caused, and the efficiency of the module is lower than that of the cells.
Generally, a white adhesive film is used, and the gap is completely white, so that light rays emitted into the gap are reflected to the front layer of glass, reflected or even totally reflected at the embossed interface of the glass, and finally emitted to the front side of the cell. However, the photovoltaic module can be designed to be black for aesthetic purposes, and a black back plate or a black adhesive film can be adopted, so that the temperature rise of the photovoltaic module is easily caused.
Therefore, how to improve the reflectivity on the basis of reducing the operation temperature of the component is a technical problem which needs to be solved urgently in the photovoltaic field.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-reflection composite latticed packaging adhesive film and a photovoltaic module, and aims to solve the technical problem of improving the reflectivity on the basis of reducing the operation temperature of the module.
In order to solve the above technical problem, the present invention provides a high-reflection composite grid-shaped packaging adhesive film, comprising: a transparent adhesive film; the grid composite reflection layer is positioned above the transparent adhesive film and comprises: the prism reflecting layer and the infrared high-reflection black coating are covered on the prism reflecting layer.
In one embodiment, the prism reflecting layer is in a regular polygonal pyramid structure on the surface of the white ink layer so as to form at least three reflecting surfaces.
In one embodiment, the prismatic reflective layer has a thickness of 15 μm to 30 μm with a cone height of 5 μm to 10 μm.
In one embodiment, the infrared high-reflection black coating is coated and attached on the prism reflection layer and has the thickness of 5-15 μm.
In order to solve the above technical problem, the present invention further provides a photovoltaic module, which includes a front plate (embossed glass), a front adhesive film, a solar cell unit, the above high-reflection composite grid-shaped packaging adhesive film, and a back packaging plate, which are sequentially stacked; and the solar cell of the solar cell unit is arranged corresponding to the hollow part in the grid composite reflecting layer.
The high-reflection composite grid-shaped packaging adhesive film has the advantages that the grid composite reflection layer is arranged to improve the reflectivity of the gap area of the solar cell piece, the infrared high-reflection black coating can selectively absorb ultraviolet wave bands on the premise of ensuring the high reflectivity, the temperature rise of a photovoltaic module is reduced, and the prism reflection layer is combined to adopt a regular polygonal cone structure, so that the light rays penetrating through the infrared high-reflection black coating can be reflected in multiple angles to be better utilized, and the power generation efficiency is improved while the temperature of the module is reduced.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a front view of the high reflection composite grid type packaging adhesive film of the present invention;
FIG. 2 is a cross-sectional view of the high reflection composite grid type encapsulant film of the present invention;
FIG. 3 is a schematic view of a polygonal pyramid structure of the high-reflection composite grid-shaped packaging adhesive film of the present invention;
fig. 4 is a structural view of a photovoltaic module of the present invention.
In the figure: a transparent adhesive film 41, a grid composite reflection layer 42, a prism reflection layer 421 and an infrared high reflection black coating 422;
the solar cell comprises a front plate 1, a front adhesive film 2, a solar cell unit 3, a back adhesive film 4 and a back packaging plate 5.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1 and fig. 2, the present embodiment provides a high-reflection composite grid-shaped packaging adhesive film, including: a transparent adhesive film 41; a grid composite reflective layer 42 located above the transparent adhesive film 41, and including: the prism reflecting layer 421 and the infrared high-reflection black coating 422 are covered on the prism reflecting layer, so that the reflectivity is improved on the basis of reducing the operation temperature of the component.
In the practical application process, the prior art can adopt a prism mode for reflection, but the mode has extra direction requirements on the arrangement position of the photovoltaic module and the preparation process of the photovoltaic module, and once the directions are not matched, the prism can not realize the reflection of light rays, so that the effect of providing the power of the photovoltaic module is poor. For the above purpose, as shown in fig. 3, a prismatic reflective layer 42 having a regular polygonal pyramid structure is further provided in the present embodiment to form at least three reflective surfaces. Under the condition of multiple reflecting surfaces, the problem of direction does not need to be considered in the preparation process and the installation and debugging process of the photovoltaic module, multi-angle total reflection is really realized, namely, the sunlight rays incident at different angles in different time periods can be reflected by adopting a regular-polygon cone structure, and the utilization rate of the prism reflecting layer is improved.
In this embodiment, specifically, the thickness of the prism reflective layer 421 is 15 μm to 30 μm, wherein the taper height is 5 μm to 10 μm, and the thickness of the prism reflective layer 421 includes the taper height; if the thickness of the prism reflective layer 421 is too thick, the printing difficulty is high, and the prism reflective layer is cracked; if the thickness of the prism reflective layer 421 is too thin, the light reflectivity will be reduced; preferably, the thickness of the prismatic reflective layer 421 is most suitable at 20 μm to 25 μm. Further, the arrangement of the grid composite reflecting layer 42 reduces the height difference between the grid composite reflecting layer and the solar cell units 3 of the corresponding modules, so that the grid composite reflecting layer and the solar cell units are close to each other on the surface after lamination, and the reflecting surface is raised to improve the photoelectric conversion efficiency of the photovoltaic module.
In this embodiment, optionally, the lattice composite reflective layer 42 is formed on the adhesive film substrate 1 by a micro-foaming process or by embossing.
In this embodiment, specifically, the infrared highly reflective black coating 422 is coated and attached on the prism reflective layer 421, and the thickness is 5 μm to 15 μm.
In the embodiment, specifically, the prism reflection layer 42 is additionally arranged between the infrared high-reflection black coating 422 and the transparent adhesive film 41 to realize high reflection on the far infrared band, so that the reflectivity of the far infrared band of 700nm-1400nm is more than 70%, the power generation efficiency of the assembly is further improved, the working temperature of the assembly is reduced when the black assembly is used, the attenuation of the power of the black assembly is reduced, and the service life of the assembly is prolonged; meanwhile, the absorption rate of the infrared high-reflection black coating 422 in the wave band with the wavelength of 280nm-700nm is over 90%, and light rays in the wave band are prevented from entering the transparent adhesive film 41.
The prism reflection layer 421 is arranged to reflect the short wavelength light and the long wavelength light as much as possible, and the light energy which is originally transmitted through the infrared high reflection black coating 422 and then absorbed by the transparent adhesive film 41 is converted into the reflected light as much as possible, so that the reflectivity of the short wavelength light and the long wavelength light is improved, and the high full-spectrum reflectivity is provided. Under the condition that the reflectivity of the double reflection light is increased, more light energy is reflected to the photovoltaic module, and the power generation power of the photovoltaic module is provided.
As shown in fig. 4, the present embodiment provides a photovoltaic module, which includes a front panel 1, a front adhesive film 2, a solar cell unit 3, a high-reflection composite grid-shaped packaging adhesive film as described above, and a back packaging plate 5, which are stacked in sequence; the solar cell of the solar cell unit 4 is arranged corresponding to the hollow part in the grid composite reflecting layer.
In summary, the embodiment provides a high-reflection composite grid-shaped packaging adhesive film and a photovoltaic module, the grid composite reflection layer is arranged to improve the reflectivity of the gap region of the solar cell, and the infrared high-reflection black coating can selectively absorb an ultraviolet band on the premise of ensuring the high reflectivity, so that the temperature rise of the photovoltaic module is reduced; and because the prism reflecting layer adopts the regular polygon pyramid structure, can carry out multi-angle reflection with penetrating through infrared high reflection black coating light and obtain better utilization, consequently improved the generating efficiency when reducing the subassembly temperature.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. A high-reflection composite grid-shaped packaging adhesive film is characterized by comprising:
a transparent adhesive film (41);
a mesh composite reflective layer (42) located over the transparent adhesive film (41) and comprising: the prism reflection layer (421) is covered with an infrared high reflection black coating (422).
2. The packaging adhesive film according to claim 1,
the prism reflecting layer (421) is in a regular polygonal cone structure on the surface of the white ink layer so as to form at least three reflecting surfaces.
3. The packaging adhesive film according to claim 2,
the thickness of the prism reflecting layer (421) is 15-30 μm, wherein the cone height is 5-10 μm.
4. The packaging adhesive film according to claim 3,
the infrared high-reflection black coating (422) is coated and attached to the prism reflection layer (421), and the thickness of the infrared high-reflection black coating is 5-15 μm.
5. A photovoltaic module, characterized by comprising a front plate (1), a front adhesive film (2), a solar cell unit (3), a high-reflection composite grid-shaped packaging adhesive film according to any one of claims 1-4 and a back packaging plate (5) which are sequentially stacked; wherein
The solar cell of the solar cell unit (3) is arranged corresponding to the hollow-out part in the grid composite reflecting layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122925055.1U CN216106716U (en) | 2021-11-25 | 2021-11-25 | High-reflection composite latticed packaging adhesive film and photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122925055.1U CN216106716U (en) | 2021-11-25 | 2021-11-25 | High-reflection composite latticed packaging adhesive film and photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216106716U true CN216106716U (en) | 2022-03-22 |
Family
ID=80719070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122925055.1U Active CN216106716U (en) | 2021-11-25 | 2021-11-25 | High-reflection composite latticed packaging adhesive film and photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216106716U (en) |
-
2021
- 2021-11-25 CN CN202122925055.1U patent/CN216106716U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102544174B (en) | Solar cell assembly for increasing light energy utilization ratio | |
| US8039731B2 (en) | Photovoltaic concentrator for solar energy system | |
| US20100252107A1 (en) | Solar cell module | |
| CN102280512A (en) | Solar cell module with high conversion efficiency | |
| CN101192633A (en) | Photovoltaic roof tile system | |
| CN102656706A (en) | Reflective device for a photovoltaic module with bifacial cells | |
| CN204538042U (en) | A kind of double-sided solar battery assembly | |
| TWI479669B (en) | Anti-reflective and light-trapping solar module package structure | |
| CN102347709A (en) | Tapered stereo-shaped array solar cell power generation system | |
| KR20190000222U (en) | Solar power generation component | |
| CN101872795B (en) | Solar module encapsulation structure | |
| JP5340487B2 (en) | Solar cell and solar cell module | |
| TWI381141B (en) | Solar energy system | |
| CN216106716U (en) | High-reflection composite latticed packaging adhesive film and photovoltaic module | |
| JP2010074057A (en) | Solar cell backside sheet and solar cell module using the same | |
| CN205881925U (en) | Photovoltaic module of optics high -usage | |
| CN102623578A (en) | Aperture array light trap technology applied to thin-film solar cell | |
| CN102709376A (en) | Back plate integrated with fluorescent planar optical waveguide structure for solar battery module and application | |
| EP3982424B1 (en) | Photoelectric conversion device for solar photovoltaic generation | |
| CN211480056U (en) | Heterojunction photovoltaic module | |
| CN210156396U (en) | Solar module packaging structure | |
| CN211127649U (en) | Solar cell module | |
| CN210640260U (en) | Double-sided double-glass photovoltaic assembly | |
| CN112531044A (en) | Crystalline silicon photovoltaic module with incident angle correction factor | |
| CN208028077U (en) | A kind of generating electricity on two sides solar double-glass assemblies back-panel glass having both antireflective and high reflection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |