CN218731002U - Micro-structure coating reflection of light backplate - Google Patents
Micro-structure coating reflection of light backplate Download PDFInfo
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- CN218731002U CN218731002U CN202222798293.5U CN202222798293U CN218731002U CN 218731002 U CN218731002 U CN 218731002U CN 202222798293 U CN202222798293 U CN 202222798293U CN 218731002 U CN218731002 U CN 218731002U
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- pit
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Abstract
The utility model relates to a micro-structure coating reflective backboard, which comprises a PET substrate, wherein the back surface of the PET substrate is coated with a fluorine coating layer, the front surface of the PET substrate is connected with the back surface of an adhesive layer, a gapless array is rolled and molded on the front surface of the adhesive layer and is fully distributed with a reflective micro-pit structure, and reflective micro-beads are filled in the reflective micro-pit structure; the reflective micro-pit structure is an arc pit or a polygonal pit or a pyramid pit. The structure is simple, and the reflective rate of the back plate can be effectively increased by adding the reflective micro-beads through the micro-pit structure.
Description
Technical Field
The utility model relates to a reflective structure, a micro-structure coating reflection of light backplate specifically says so.
Background
With the rapid development of new energy, the high and low light reflection rate of the back plate of the photovoltaic module back plate directly influences the power generation efficiency of the photovoltaic module, and the light reflection rate is generally 80-82% in the currently adopted substrate and light reflection coating structure. For higher and higher power generation efficiency requirements, if the number of the battery assemblies is increased, the relative power generation cost input and benefit are not obviously improved, so that great progress space is provided for improving the luminous efficiency of the back plate.
Disclosure of Invention
The utility model provides a simple structure can effectively increase the micro-structure coating reflection of light backplate of backplate reflection of light rate.
The utility model adopts the technical proposal that: a microstructured coated retroreflective backsheet, comprising: the light-reflecting micro-pit structure comprises a PET substrate, wherein a fluorine coating layer is coated on the back surface of the PET substrate, the front surface of the PET substrate is connected with the back surface of a bonding glue layer, the front surface of the bonding glue layer is uniformly distributed with light-reflecting micro-pit structures in a gapless array rolling forming mode, and light-reflecting micro-beads are filled in the light-reflecting micro-pit structures.
The reflective micro-pit structure is an arc pit or a polygonal pit or a pyramid pit.
The adhesive layer is acrylate adhesive or polyolefin adhesive.
The width range of the reflective micro-pit structure is 20-40 μm, and the depth range is 30-50 μm.
The utility model discloses a set up reflection of light pit structure on the bonding glue film of backplate bonding surface, combine built-in reflection of light microballon, when light penetrates directly, the reflection of light of ability multi-angle can improve light reflection rate from incident backplate surface, and the reflectivity promotes and is showing.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: the coating comprises a PET substrate 1, a fluorine coating layer 2, an adhesive layer 3, a reflective micro-pit structure 4 and reflective micro-beads 5.
Detailed Description
The following is further described with reference to the accompanying drawings.
FIG. 1 shows: a micro-structure coating reflective back plate comprises a PET substrate 1, a fluorine coating layer 2, a bonding glue layer 3, the fluorine coating layer 2 is coated on the back surface of the PET substrate 1, the back surface of the PET substrate 1 is connected with the back surface of the bonding glue layer 3, the bonding glue layer is acrylate glue or polyolefin glue, reflective micro-pit structures 4 are uniformly distributed on the front surface of the bonding glue layer 3 in a gapless array rolling forming mode, the width range of the reflective micro-pit structures is 20-40 mu m, the depth range is 30-50 mu m, and reflective micro-beads 5 are filled in the reflective micro-pit structures.
On the basis of the present embodiment, the reflective micro-pit structure can be designed as an arc pit, a polygonal pit or a pyramid pit to improve the reflective efficiency.
Claims (4)
1. A microstructured coated retroreflective backsheet, comprising: the light-reflecting micro-pit structure comprises a PET substrate, wherein a fluorine coating layer is coated on the back surface of the PET substrate, the front surface of the PET substrate is connected with the back surface of a bonding glue layer, the front surface of the bonding glue layer is uniformly distributed with light-reflecting micro-pit structures in a gapless array rolling forming mode, and light-reflecting micro-beads are filled in the light-reflecting micro-pit structures.
2. The microstructured coated retroreflective backsheet of claim 1, wherein: the reflective micro-pit structure is an arc pit or a polygonal pit or a pyramid pit.
3. The microstructured coated retroreflective backsheet of claim 1, wherein: the adhesive layer is acrylate adhesive or polyolefin adhesive.
4. A microstructured coated retroreflective backsheet according to claim 1 or 2, characterized in that: the width range of the reflective micro-pit structure is 20-40 μm, and the depth range is 30-50 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222798293.5U CN218731002U (en) | 2022-10-24 | 2022-10-24 | Micro-structure coating reflection of light backplate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222798293.5U CN218731002U (en) | 2022-10-24 | 2022-10-24 | Micro-structure coating reflection of light backplate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218731002U true CN218731002U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222798293.5U Active CN218731002U (en) | 2022-10-24 | 2022-10-24 | Micro-structure coating reflection of light backplate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218731002U (en) |
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2022
- 2022-10-24 CN CN202222798293.5U patent/CN218731002U/en active Active
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