CN215933619U - Photovoltaic cell assembly and photovoltaic system - Google Patents
Photovoltaic cell assembly and photovoltaic system Download PDFInfo
- Publication number
- CN215933619U CN215933619U CN202121666392.7U CN202121666392U CN215933619U CN 215933619 U CN215933619 U CN 215933619U CN 202121666392 U CN202121666392 U CN 202121666392U CN 215933619 U CN215933619 U CN 215933619U
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- China
- Prior art keywords
- adhesive film
- string
- cell
- laid
- photovoltaic
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- 239000002313 adhesive film Substances 0.000 claims abstract description 37
- 239000012528 membrane Substances 0.000 claims description 8
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000005341 toughened glass Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Images
Classifications
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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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model provides a photovoltaic cell assembly and a photovoltaic system, wherein the assembly comprises a front plate, a front adhesive film, cell strings, a back adhesive film and a back plate, the front plate is arranged at the bottommost layer, the front adhesive film is laid on the top of the front plate, a plurality of cell strings are laid on the front adhesive film, the back adhesive film is laid on each cell string, and any one cell string is lapped on the back adhesive film of the previous cell string. According to the utility model, the battery strings and the adhesive films are sequentially overlapped and laid, and the adhesive films are used for insulating the battery strings, so that the size of the assembly is reduced, the effect of no string spacing is achieved, the photoelectric conversion efficiency of the assembly is improved, and the appearance of the assembly is more attractive.
Description
Technical Field
The application relates to the field of photovoltaic power generation, in particular to a photovoltaic cell assembly and a photovoltaic system.
Background
China puts forward the goals of realizing carbon peak reaching 2030 years ago and carbon neutralization 2060 years ago, and development of new energy becomes an important energy strategy. Solar energy is a clean and renewable new energy source, and is more and more concerned by people because of being easily obtained, in recent years, the solar photovoltaic industry develops faster, and many new technologies emerge endlessly, and high-efficiency components are favored by the market because the high-efficiency components can improve the conversion efficiency of the components, reduce the occupied area of a system and the BOS cost of the system.
In recent years, in order to improve the photoelectric conversion efficiency of a photovoltaic system, a plurality of photovoltaic module manufacturers have successively introduced a tiling technology, a negative pitch technology, and a small pitch technology, which are all technologies for reducing the cell pitch to achieve a high-efficiency module. The spacing between strings of cells in the module is also one of the factors that affect the conversion efficiency of the module, but the improvement is not ideal.
SUMMERY OF THE UTILITY MODEL
In order to solve one of the above technical problems, the present invention provides a photovoltaic cell module and a photovoltaic system.
The utility model provides a photovoltaic cell module, which comprises a front plate, a front adhesive film, cell strings, a back adhesive film and a back plate, wherein the front plate is arranged at the bottommost layer, the front adhesive film is laid at the top of the front plate, the cell strings are laid on the front adhesive film, the back adhesive film is laid on each cell string, and any one cell string is lapped on the back adhesive film of the previous cell string.
Preferably, the back adhesive film is strip-shaped, and the strip-shaped back adhesive film covers the whole surface of the battery string.
Preferably, the width of the back adhesive film is greater than the width of the battery string.
Preferably, the width of the back adhesive film is 5mm to 10mm greater than the width of the battery string.
Preferably, the plurality of battery strings are welded in a shingled manner.
Preferably, an edge of any one of the battery strings overlaps an edge of a previous battery string.
Preferably, the overlap range of any one battery string edge and the previous battery string edge is 1mm to 2 mm.
Preferably, the front plate and the back plate are made of coated tempered glass.
Preferably, the back glue film is made of an insulating material.
A second aspect of embodiments of the present invention provides a photovoltaic system, which includes a photovoltaic cell assembly according to the first aspect of embodiments of the present invention.
The utility model has the following beneficial effects: according to the utility model, the battery strings and the adhesive films are sequentially overlapped and laid, and the adhesive films are used for insulating the battery strings, so that the size of the assembly is reduced, the effect of no string spacing is achieved, the photoelectric conversion efficiency of the assembly is improved, and the appearance of the assembly is more attractive.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a photovoltaic cell module according to embodiment 1 of the present invention;
fig. 2 is a sectional view taken along line a-a of fig. 1.
Reference numerals:
1. front plate, 2, front adhesive film, 3, battery string, 4, back adhesive film, 5, back plate, 6, overlapping area.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Example 1
As shown in fig. 1 and 2, the present embodiment proposes a photovoltaic cell module including a front sheet 1, a front adhesive film 2, a cell string 3, a back adhesive film 4, and a back sheet 5. Wherein the front plate 1 is arranged at the bottommost layer. The positive plate 1 can be realized by adopting coated toughened glass. A front adhesive film 2 is laid on the surface of the front plate 1. A plurality of battery strings 3 are laid on the front adhesive film 2. A back adhesive film 4 is laid on each battery string 3, and any one battery string 3 is overlapped on the back adhesive film 4 of the previous battery string 3, so that a laying structure in which the battery strings 3 and the back adhesive films 4 are sequentially overlapped and laid is formed. The back glue film 4 is made of an insulating material, and insulation between the two overlapped battery strings 3 can be realized. A plurality of battery cluster 3 can adopt the mode of shingled string welding to realize the welding, the displacement of avoiding battery cluster 3 that can be better reaches the effect of no cluster interval.
Further, the back adhesive film 4 in this embodiment may be cut into a strip shape to fit the shape of the battery string 3. The width of the back adhesive film 4 is larger than the width of the battery string 3, preferably, the width of the back adhesive film 4 is larger than the width of the battery string 3 by 5mm to 10mm, preferably 10mm, so that the back adhesive film 4 can completely cover the surface of the battery string 3.
In addition, in the overlapping process between the two battery strings 3 in the present embodiment, the adjacent edges of the two battery strings 3 overlap to form an overlapping region 6, as shown in fig. 2. The overlap region 6 may have an overlap range of 1mm to 2mm, achieving a string-free spacing.
Example 2
As shown in fig. 2, the present embodiment proposes a photovoltaic system including a photovoltaic cell assembly. The composition and the working principle of the photovoltaic cell module can refer to the content recorded in embodiment 1, and are not described herein again.
This embodiment is laid through battery cluster 3 and glued membrane overlap joint in proper order to utilize the glued membrane to accomplish the insulation between the battery cluster 3, reduced the subassembly size, reach the effect of no cluster interval, improve the photoelectric conversion efficiency of subassembly, also make the subassembly outward appearance more pleasing to the eye simultaneously.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. The utility model provides a photovoltaic cell module, its characterized in that, the subassembly includes positive board, positive glued membrane, battery cluster, back glued membrane and backplate, the bottom is arranged in to positive board, positive glued membrane has been laid at positive board top, and is a plurality of the battery cluster is laid on the positive glued membrane, all laid the back glued membrane on every battery cluster, wherein, arbitrary one the battery cluster overlap joint is on the back glued membrane of preceding battery cluster.
2. The photovoltaic cell assembly of claim 1, wherein the back adhesive film is in the shape of a strip, and the strip covers the entire surface of the cell string.
3. The photovoltaic cell assembly according to claim 1 or 2, wherein the width of the back adhesive film is greater than the width of the cell string.
4. The assembly according to claim 3, wherein the width of the back adhesive film is 5mm to 10mm greater than the width of the cell string.
5. The assembly defined in claim 1, wherein the plurality of strings are welded together in a shingled manner.
6. The assembly according to claim 1, wherein an edge of any one of the cell strings overlaps an edge of a previous cell string.
7. The assembly defined in claim 6 wherein the overlap of any string edge with the previous string edge is in the range of 1mm to 2 mm.
8. The assembly according to claim 1, wherein the front and back sheets are implemented as coated tempered glass.
9. The assembly according to claim 1, wherein the backside adhesive film is made of an insulating material.
10. A photovoltaic system, characterized in that it comprises a photovoltaic cell assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121666392.7U CN215933619U (en) | 2021-07-22 | 2021-07-22 | Photovoltaic cell assembly and photovoltaic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121666392.7U CN215933619U (en) | 2021-07-22 | 2021-07-22 | Photovoltaic cell assembly and photovoltaic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215933619U true CN215933619U (en) | 2022-03-01 |
Family
ID=80401308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121666392.7U Active CN215933619U (en) | 2021-07-22 | 2021-07-22 | Photovoltaic cell assembly and photovoltaic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215933619U (en) |
-
2021
- 2021-07-22 CN CN202121666392.7U patent/CN215933619U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314417 No. 1 Jisheng Road, Jiaxing City, Zhejiang Province Patentee after: Zhengtai Xinneng Technology Co.,Ltd. Address before: 314417 No. 1 Jisheng Road, Jiaxing City, Zhejiang Province Patentee before: HAINING ASTRONERGY TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314417 No. 1 Jisheng Road, Jiaxing City, Zhejiang Province Patentee after: Zhengtai Xinneng Technology Co.,Ltd. Address before: 314417 No. 1 Jisheng Road, Jiaxing City, Zhejiang Province Patentee before: Zhengtai Xinneng Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |