CN216120324U - Coating high reflection packaging adhesive film - Google Patents
Coating high reflection packaging adhesive film Download PDFInfo
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- CN216120324U CN216120324U CN202122751673.9U CN202122751673U CN216120324U CN 216120324 U CN216120324 U CN 216120324U CN 202122751673 U CN202122751673 U CN 202122751673U CN 216120324 U CN216120324 U CN 216120324U
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- adhesive film
- reflection
- prism layer
- black coating
- light
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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
- Y02E10/52—PV systems with concentrators
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Abstract
The utility model relates to the field of photovoltaic packaging adhesive films, in particular to a coating high-reflection packaging adhesive film, which comprises: a glue film substrate; the prism layer is positioned on the upper layer of the adhesive film base body; the infrared high-reflection black coating covers the prism layer; the prism layer reflects the light transmitted through the infrared high-reflection black coating, and then the light transmitted through the prism layer is reflected by the adhesive film substrate; the high-reflection packaging adhesive film coated with the infrared high-reflection black coating can selectively absorb wave bands on the premise of ensuring high reflectivity; and then the light that will transmit infrared high reflection black coating carries out spotlight reuse by the prism layer, finally reflects by the glued membrane base member, lets more light by reflection to photovoltaic module on, greatly promotes the power of subassembly.
Description
Technical Field
The utility model relates to the technical field of photovoltaic packaging adhesive films, in particular to a high-reflection coating packaging adhesive film.
Background
With the recent generation of solar crystalline silicon cell technology, the photovoltaic industry has begun to gradually switch from single-sided to double-sided cell modules, which have higher power and generation yields than conventional single-sided cell modules. The improvement of the power of the component is always a continuous pursuit of photovoltaic people, and various innovative technologies are developed to realize the pursuit; the technology is not only a crystalline silicon battery technology, but also comprises various auxiliary materials, such as a series of technologies of a transparent back plate, a transparent grid back plate, a reflective welding strip, antireflection toughened glass, white grid glazing toughened glass, a white glue film and the like.
Present white EVA is generally chosen as single glass photovoltaic module's back encapsulation glued membrane, increases the back reflection of light to promote single glass assembly's power. However, white EVA has some disadvantages: white encapsulation glued membrane promotes limitedly to subassembly power, and in the lamination process of subassembly high temperature, owing to have certain mobility, openly overflow to battery piece and solder strip, lead to overflowing white, turn-ups problem, and then influence the pleasing to the eye of subassembly, reduce subassembly power and improve the subassembly hot spot risk. In addition, the photovoltaic industry pursues higher film reflectivity to obtain higher module power, and on the basis of not increasing inorganic filler, many attempts are made, such as placing a gap reflective film in a cell gap area in the module, or placing a metal reflective film on the back of the whole cell, but the effect is not ideal. The gap reflective film is deviated and misplaced in the lamination, so that a part of area of the gap reflective film is positioned on the back surface of the battery piece, the reflective gain effect cannot be achieved, the appearance is influenced, and the hidden crack risk of the battery piece exists; the reflective film is arranged on the whole back area of the battery piece, so that the problems of a large number of hidden cracks of the battery piece and easy delamination of the adhesive film are directly caused.
For example, the chinese patent application (CN113416501A) discloses a composite adhesive film which uses a surface layer reflection and transmission and a bottom layer secondary reflection to convert the light energy originally absorbed by the adhesive film into reflected light, and although the reflectivity and hue of the black adhesive film are solved, the light gathering and reflection capabilities of the adhesive film have room for further improvement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a coating high-reflection packaging adhesive film to solve the technical problem that the reflectivity of the adhesive film cannot be further improved by a colored packaging adhesive film.
In order to solve the above technical problem, the present invention provides a high reflection coating adhesive film, comprising: a glue film substrate; the prism layer is positioned on the upper layer of the adhesive film base body; the infrared high-reflection black coating covers the prism layer; the prism layer reflects the light transmitted through the infrared high-reflection black coating, and then the light transmitted through the prism layer is reflected by the adhesive film substrate.
In one embodiment, the adhesive film substrate is a white adhesive film.
In one embodiment, the effective thickness of the adhesive film substrate is 300-800 μm.
In one embodiment, the isosceles right angle prisms of the prism layer include a bottom surface and prism faces; and the bottom surface is in rolling fit with the adhesive film substrate.
In one embodiment, the prism layer has a thickness of 10 μm to 50 μm.
In one embodiment, the thickness of the infrared high reflection black coating is 5 μm to 50 μm.
The high-reflection packaging adhesive film has the beneficial effects that the high-reflection packaging adhesive film can selectively absorb the wave band by arranging the infrared high-reflection black coating on the premise of ensuring high reflectivity; and then the light that will transmit infrared high reflection black coating carries out spotlight reuse by the prism layer, finally reflects by the glued membrane base member, lets more light by reflection to photovoltaic module on, greatly promotes the power of subassembly.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
Fig. 1 is a structural diagram of a coated high-reflection packaging adhesive film of the present invention.
In the figure: the coating comprises a glue film substrate 1, a prism layer 2 and an infrared high-reflection black coating 3.
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, the present embodiment provides a high-reflection coating adhesive film, including: a glue film substrate 1; the prism layer 2 is positioned on the upper layer of the adhesive film substrate 1; the infrared high-reflection black coating 3 covers the prism layer 2; the prism layer 2 reflects the light transmitted through the infrared high-reflection black coating 3, and then the film substrate 1 reflects the light passing through the prism layer 2.
In this embodiment, specifically, the adhesive film substrate 1 is a white adhesive film; the white adhesive film has better optical performance than the colored adhesive film, and is beneficial to reflecting incident light.
In this embodiment, optionally, the thickness of the adhesive film substrate 1 is 300 μm to 800 μm, and the reflectance of the white adhesive film is more than 92%.
In this embodiment, specifically, the isosceles right-angle prism of the prism layer 2 includes a bottom surface and a prism surface; the bottom surface and the adhesive film base body 1 are in rolling fit, light rays are scattered through the prism layer, light rays with different wave bands are scattered at different angles, light within a required range can be repeatedly utilized to achieve a light condensation effect, and the reflectivity of the light rays is over 65%.
In this embodiment, optionally, the thickness of the prism layer 2 is 10 μm to 50 μm, and a vertical edge is formed between the refractive surface and the reflective surface of the prism layer 2; the height of the vertical edge is the thickness of the prism layer 2.
In this embodiment, optionally, the thickness of the infrared highly reflective black coating is 5 μm to 50 μm.
In this embodiment, specifically, the infrared highly reflective black coating 3 includes: photocuring resin, reactive diluent, initiator, adhesive resin and high-reflection black coating.
In this embodiment, specifically, if the highly reflective black coating is directly applied to the adhesive film substrate, the high reflection is achieved on the far infrared band by additionally arranging the prism layer between the highly reflective black coating and the adhesive film substrate, so that the reflectivity of the far infrared band of 700nm to 1400nm is over 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 power attenuation of the black assembly is reduced, and the service life of the assembly is prolonged; meanwhile, the absorptivity of the high-reflection black coating in a wave band with the wavelength of 280nm-700nm is over 90 percent, and light rays in the wave band are prevented from entering the adhesive film substrate 1.
The prism layer 2 is arranged to reflect short wavelength light and long wavelength light as much as possible, and light energy which is originally transmitted through the infrared high-reflection black coating 3 and then absorbed by the matrix adhesive film 1 is converted into reflected light as much as possible, so that the reflectivity of the short wavelength light and the long wavelength light is improved, and 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.
In summary, the present embodiment provides a high-reflection coating adhesive film, which includes: the infrared high-reflection black coating is arranged, so that the wave band can be selectively absorbed on the premise of ensuring high reflectivity; and then the light that will transmit infrared high reflection black coating carries out spotlight reuse by the prism layer, finally reflects by the glued membrane base member, lets more light by reflection to photovoltaic module on, greatly promotes the power of subassembly.
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 (6)
1. A coated high-reflection packaging adhesive film is characterized by comprising:
a glue film base (1);
the prism layer (2), the prism layer (2) is positioned on the upper layer of the adhesive film base body (1);
the infrared high-reflection black coating (3) covers the prism layer (2);
the prism layer (2) reflects the light transmitted through the infrared high-reflection black coating (3), and then the glue film substrate (1) reflects the light passing through the prism layer (2).
2. The coated highly reflective encapsulant film as claimed in claim 1,
the adhesive film base body (1) is a white adhesive film.
3. The coated highly reflective encapsulant film as claimed in claim 1,
the thickness of the adhesive film substrate (1) is 300-800 μm.
4. The coated highly reflective encapsulant film as claimed in claim 1,
the isosceles right-angle prism of the prism layer (2) comprises a bottom surface and a prism surface;
the bottom surface is in rolling fit with the adhesive film base body (1).
5. The coated highly reflective encapsulant film as claimed in claim 4,
the thickness of the prism layer (2) is 10-50 μm.
6. The coated highly reflective encapsulant film as claimed in claim 1,
the thickness of the infrared high-reflection black coating (3) is 5-50 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122751673.9U CN216120324U (en) | 2021-11-10 | 2021-11-10 | Coating high reflection packaging adhesive film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122751673.9U CN216120324U (en) | 2021-11-10 | 2021-11-10 | Coating high reflection packaging adhesive film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216120324U true CN216120324U (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122751673.9U Active CN216120324U (en) | 2021-11-10 | 2021-11-10 | Coating high reflection packaging adhesive film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216120324U (en) |
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2021
- 2021-11-10 CN CN202122751673.9U patent/CN216120324U/en active Active
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