CN218602454U - High-reflectivity photovoltaic module backboard - Google Patents
High-reflectivity photovoltaic module backboard Download PDFInfo
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- CN218602454U CN218602454U CN202222557459.4U CN202222557459U CN218602454U CN 218602454 U CN218602454 U CN 218602454U CN 202222557459 U CN202222557459 U CN 202222557459U CN 218602454 U CN218602454 U CN 218602454U
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Abstract
The utility model relates to a high reflectivity photovoltaic module backplate, including the PET substrate, the outer back of PET substrate sets up fluorine dope layer, its characterized in that: an adhesive layer is arranged between the outer back surface of the PET substrate and the fluorine coating layer, the adhesive layer comprises a PET glue layer and a fluorine rubber adhesive layer which are respectively bonded with the PET substrate, and a reflective micro-bead layer is arranged between the PET glue layer and the fluorine rubber adhesive layer. The back plate is simple in structure, and can effectively take the reflective rate of the back plate into consideration, and the problems of safety in use and service life are solved.
Description
Technical Field
The utility model relates to a photovoltaic technology, a high reflectivity photovoltaic module backplate specifically says so.
Background
The solar photovoltaic power generation system is a novel power generation system which directly converts solar radiation into electric energy by utilizing the photovoltaic effect of a solar cell. In order to improve the back plate light reflection and power generation efficiency of a photovoltaic module back plate commonly used in a system, generally, as patents 200910144746.9 and 201210143809.0, microbeads are added in the back plate substrate reverse coating mixing for improving the light reflection rate, but the bonding and adhesion performance of the coating mixed with the back plate substrate after the microbeads are added is influenced by the microbead mixing, a bonding gap is easy to generate, the coating is bonded with a non-uniform material at the bonding part of the substrate, and cracking in long-term illumination high-temperature use exists, so that the coating is damaged, and the safe use of the back plate is influenced.
Disclosure of Invention
The utility model provides a simple structure can effectively compromise the high reflectivity photovoltaic module backplate of backplate reflection of light rate and safe in utilization, life problem.
The utility model adopts the technical proposal that: the utility model provides a high reflectivity photovoltaic module backplate, includes the PET substrate, and the outer back of PET substrate sets up fluorine dope layer, its characterized in that: an adhesive layer is arranged between the outer back surface of the PET substrate and the fluorine coating layer, the adhesive layer comprises a PET adhesive layer and a fluorine rubber adhesive layer which are respectively bonded with the PET substrate, and a reflective bead layer is arranged between the PET adhesive layer and the fluorine rubber adhesive layer.
The fluorine coating layer is a fluorocarbon coating layer.
The PET substrate is UV-resistant transparent PET.
The PET glue layer is a modified acrylate adhesive layer.
The thickness of the fluorine coating layer is 1/8-1/12 of the thickness of the PET substrate.
The utility model discloses set up reflection of light microballon layer alone, and set up it between PET glue layer and fluororubber gluing agent layer, effectively ensure splicing in proper order between PET substrate and the fluororubber coating layer, it is PET glue layer completely when combining in PET substrate plane, there is not the bonding problem that leads to because of mixing the stereoplasm debris bed of material, do not have when long-term illumination high temperature uses because of the thermal expansion nonconformity hidden danger that leads to the fracture, ensure life, reflection of light microballon layer sets up between two glue films simultaneously, on taking into account whole splicing and combining firm basis, still improved the reflectivity on its level, avoid because of mixing in the coating material cause the problem that does not have the transmission on the more angle fretwork of light irradiation when staggering each other in the space.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: the light-reflecting and light-reflecting micro-bead coating comprises a PET substrate 1, a fluorocarbon coating layer 2, a PET glue layer 3, a fluororubber adhesive layer 4 and a light-reflecting micro-bead layer 5.
Detailed Description
The following is further described with reference to the accompanying drawings.
FIG. 1 shows: a high-reflectivity photovoltaic module backboard comprises a PET substrate 1, a fluorocarbon coating layer 2, a PET glue layer 3, a fluororubber adhesive layer 4 and a reflective bead layer 5. The outer back of the PET substrate 1 is provided with a PET glue layer 3, the outer side of the PET glue layer 3 is provided with a fluororubber adhesive layer 4, a reflective bead layer 5 is arranged between the fluororubber adhesive layer 4 and the PET glue layer 3, and the outer side of the fluororubber adhesive layer 4 is provided with a fluorocarbon coating layer 2.
On the basis of this example, the PET substrate can be chosen to be UV-resistant transparent PET.
On the basis of the embodiment, the PET glue layer is selected as a modified acrylate adhesive layer.
On the basis of the embodiment, the thickness of the fluorine coating layer is preferably 1/8-1/12 of the thickness of the PET substrate.
Claims (5)
1. The utility model provides a high reflectivity photovoltaic module backplate, includes the PET substrate, and the outer back of PET substrate sets up fluorine dope layer, its characterized in that: an adhesive layer is arranged between the outer back surface of the PET substrate and the fluorine coating layer, the adhesive layer comprises a PET glue layer and a fluorine rubber adhesive layer which are respectively bonded with the PET substrate, and a reflective micro-bead layer is arranged between the PET glue layer and the fluorine rubber adhesive layer.
2. The high reflectivity photovoltaic module backsheet of claim 1, wherein: the fluorine coating layer is a fluorocarbon coating layer.
3. The high reflectivity photovoltaic module backsheet of claim 1, wherein: the PET substrate is UV-resistant transparent PET.
4. The high reflectivity photovoltaic module backsheet of claim 1, wherein: the PET glue layer is a modified acrylate adhesive layer.
5. The high reflectivity photovoltaic module backsheet of claim 1, wherein: the thickness of the fluorine coating layer is 1/8-1/12 of the thickness of the PET substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222557459.4U CN218602454U (en) | 2022-09-27 | 2022-09-27 | High-reflectivity photovoltaic module backboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222557459.4U CN218602454U (en) | 2022-09-27 | 2022-09-27 | High-reflectivity photovoltaic module backboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218602454U true CN218602454U (en) | 2023-03-10 |
Family
ID=85400291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222557459.4U Active CN218602454U (en) | 2022-09-27 | 2022-09-27 | High-reflectivity photovoltaic module backboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218602454U (en) |
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2022
- 2022-09-27 CN CN202222557459.4U patent/CN218602454U/en active Active
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