CN218731001U - Three-layer back plate with grid microstructure - Google Patents
Three-layer back plate with grid microstructure Download PDFInfo
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- CN218731001U CN218731001U CN202222798280.8U CN202222798280U CN218731001U CN 218731001 U CN218731001 U CN 218731001U CN 202222798280 U CN202222798280 U CN 202222798280U CN 218731001 U CN218731001 U CN 218731001U
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Abstract
The utility model relates to a net micro-structure three-layer backplate, including the backplate substrate, its characterized in that: the back plate is characterized in that a white light-reflecting ink grid structure is printed on the front face of the back plate substrate in an array mode, the white light-reflecting ink grid structure is bonded with battery pieces in the spaces of the corresponding white light-reflecting ink grid structure through a lower transparent EVA (ethylene vinyl acetate) adhesive film layer, and the upper ends of the battery pieces are connected with a glass surface layer through an upper transparent EVA adhesive film. The double-sided back plate has a simple structure, can ensure power generation on the front side and the back side, and simultaneously takes full advantage of the whole back plate to improve the light reflection rate, thereby improving the power generation efficiency.
Description
Technical Field
The utility model relates to a photovoltaic backplate technique, a net micro-structure three-layer backplate specifically says so.
Background
With the popularization and application of the double-sided battery, the photovoltaic module generates electricity from the past front side to the front side and the back side simultaneously, the photovoltaic power generation efficiency is greatly improved, and the back plate of the photovoltaic module is made of a transparent material from the past white color, so that effective light transmission is ensured. But the gaps between the adjacent battery plates are also transparent, and the light transmission part cannot be effectively utilized.
Disclosure of Invention
The utility model provides a simple structure can ensure positive and negative electricity generation, takes into account the make full use of whole face backplate simultaneously and improves the reflection rate to improve generating efficiency's net micro-structure three-layer backplate.
The utility model adopts the technical proposal that: a three-layer backboard with a grid microstructure comprises a backboard substrate and is characterized in that: the back plate is characterized in that a white light-reflecting ink grid structure is printed on the front face of the back plate substrate in an array mode, the white light-reflecting ink grid structure is bonded with battery pieces in the spaces of the corresponding white light-reflecting ink grid structure through a lower transparent EVA (ethylene vinyl acetate) adhesive film layer, and the upper ends of the battery pieces are connected with a glass surface layer through an upper transparent EVA adhesive film.
A three-layer backboard with a grid microstructure comprises a backboard substrate and is characterized in that: white reflection of light printing ink grid structure is printed in the array on the front of backplate substrate, and the battery piece in the grid of white reflection of light printing ink grid structure is connected through transparent EVA glued membrane layer bonding corresponding white reflection of light printing ink grid structure down on the white reflection of light printing ink grid structure, and the glass top layer is connected through last transparent EVA glued membrane to the battery piece upper end, and the terminal surface is also printed white reflection of light printing ink grid structure correspondingly under the glass top layer.
The white light-reflecting ink grid structure is a white light-reflecting fluorine coating.
The back plate substrate is a PET substrate.
The glass surface layer is made of ultra-white glass.
The utility model discloses compound the battery piece between upper and lower transparent EVA glued membrane to by PET substrate backplate and super white glass top layer encapsulation, print the white reflection of light printing ink net structure of staggering battery piece position on the PET substrate, thereby improve just, the reflection of light rate of reverse side, thereby effectively utilize transparent clearance reflection of light, improve the generating efficiency.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a top view of fig. 1.
In the figure: the solar cell comprises a PET substrate 1, a white reflective fluorine coating 2, a lower transparent EVA adhesive film layer 3, a cell 4, an upper transparent EVA adhesive film layer 5 and an ultra-white glass surface layer 6.
Detailed Description
The following is further described with reference to the accompanying drawings.
Shown in figures 1 and 2: a three-layer backboard with a grid microstructure is characterized in that a white light-reflecting fluorine coating 2 with a grid structure is printed on the front surface of a PET (polyethylene terephthalate) substrate 1 of the backboard in an array mode, the white light-reflecting fluorine coating 2 with the grid structure is bonded with a battery piece 4 in a corresponding grid structure space through a lower transparent EVA (ethylene vinyl acetate) adhesive film layer 3, and the upper end of the battery piece is connected with an ultra-white glass surface layer 6 through an upper transparent EVA adhesive film 5.
In the above embodiment, the grid spaces of the white reflective fluorine coating 2 of the grid structure are rectangular, and the peripheral size of the battery piece is larger than the spaces corresponding to the rectangular battery piece.
On the basis of the embodiment, in order to further improve the double-sided reflection performance, the lower end of the surface layer of the standard-exceeding glass can be correspondingly printed with a white reflection fluorine coating with a grid structure.
Claims (5)
1. A three-layer backboard with a grid microstructure comprises a backboard substrate and is characterized in that: the back plate is characterized in that a white light-reflecting ink grid structure is printed on the front face of the back plate substrate in an array mode, the white light-reflecting ink grid structure is bonded with battery pieces in the spaces of the corresponding white light-reflecting ink grid structure through a lower transparent EVA (ethylene vinyl acetate) adhesive film layer, and the upper ends of the battery pieces are connected with a glass surface layer through an upper transparent EVA adhesive film.
2. A three-layer backboard with a grid microstructure comprises a backboard substrate and is characterized in that: white reflection of light printing ink grid structure is printed in the array on the front of backplate substrate, and the battery piece in the grid of white reflection of light printing ink grid structure is connected through transparent EVA glued membrane layer bonding corresponding white reflection of light printing ink grid structure down on the white reflection of light printing ink grid structure, and the glass top layer is connected through last transparent EVA glued membrane to the battery piece upper end, and the terminal surface is also printed white reflection of light printing ink grid structure correspondingly under the glass top layer.
3. The lattice microstructure three-layer backsheet according to claim 1 or 2, wherein: the white light-reflecting ink grid structure is a white light-reflecting fluorine coating.
4. The lattice microstructure three-layer back plate as claimed in claim 1 or 2, wherein: the back plate substrate is a PET substrate.
5. The lattice microstructure three-layer back plate as claimed in claim 1 or 2, wherein: the glass surface layer is made of ultra-white glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222798280.8U CN218731001U (en) | 2022-10-24 | 2022-10-24 | Three-layer back plate with grid microstructure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222798280.8U CN218731001U (en) | 2022-10-24 | 2022-10-24 | Three-layer back plate with grid microstructure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218731001U true CN218731001U (en) | 2023-03-24 |
Family
ID=85588321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222798280.8U Active CN218731001U (en) | 2022-10-24 | 2022-10-24 | Three-layer back plate with grid microstructure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218731001U (en) |
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2022
- 2022-10-24 CN CN202222798280.8U patent/CN218731001U/en active Active
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