CN221102103U - Film-coated wave-shaped strip double-glass efficient photovoltaic module - Google Patents
Film-coated wave-shaped strip double-glass efficient photovoltaic module Download PDFInfo
- Publication number
- CN221102103U CN221102103U CN202323149376.2U CN202323149376U CN221102103U CN 221102103 U CN221102103 U CN 221102103U CN 202323149376 U CN202323149376 U CN 202323149376U CN 221102103 U CN221102103 U CN 221102103U
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- Prior art keywords
- glass
- photovoltaic module
- eva layer
- film
- wave
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- 239000011521 glass Substances 0.000 title claims abstract description 43
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 14
- 239000010703 silicon Substances 0.000 claims abstract description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000005341 toughened glass Substances 0.000 claims abstract description 11
- 230000009977 dual effect Effects 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002310 reflectometry Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910021419 crystalline silicon Inorganic materials 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000010248 power generation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Photovoltaic Devices (AREA)
Abstract
The utility model provides a film-coated wave-shaped strip double-glass high-efficiency photovoltaic module, which is characterized in that an upper EVA layer and a lower EVA layer are respectively arranged on the upper surface and the lower surface of a silicon solar cell tandem, front glass is arranged on the upper EVA layer, a glass back plate is arranged below the lower EVA layer, a glass back plate base layer is made of super-white toughened glass, an antireflection film layer is coated on the upper surface of the super-white toughened glass, and continuous wave-shaped strips are arranged on the lower surface of the super-white toughened glass. The beneficial effects are that: the inner side surface of the glass backboard is coated with a film to improve the reflectivity and the incident light quantity of the silicon solar cell; the outer side surface of the glass backboard is provided with wavy stripes, so that the heat dissipation area is increased, the heat dissipation efficiency of the backboard of the photovoltaic module is improved, and the temperature rise effect of the battery piece is reduced.
Description
Technical Field
The utility model belongs to the field of solar photovoltaics, and relates to a photovoltaic module with good heat dissipation and high light utilization rate.
Background
Crystalline silicon solar cells have excellent photoelectric properties and relatively low manufacturing costs, and have been widely focused on in new energy industries. The photoelectric conversion efficiency of the crystalline silicon solar cell is the comprehensive expression of the optical, electrical, thermal and other performances of the cell. The solar irradiation amount received by the surface of the battery piece and the battery temperature have non-negligible influence on the working efficiency and the service life of the battery piece. The power generation efficiency of the crystalline silicon solar cell is in direct proportion to the intensity of the incident sunlight received by the crystalline silicon solar cell, and the more the incident light received by the cell piece is, the higher the power generation efficiency of the cell is. The temperature effect of the crystalline silicon solar cell is that the maximum output power of the crystalline silicon solar cell is reduced by 0.4 percent when the temperature of the cell is increased by 1K; if more practical factors (such as hot spot effect) are taken into account, the temperature decay characteristic can reach 0.65%/K, and at the same time, the temperature rise shortens the service life of the battery. Therefore, how to effectively improve the solar light utilization efficiency and cool down is a widely focused problem in the research and application fields of crystalline silicon solar cells.
Solar light intensity and battery temperature in the packaged crystalline silicon photovoltaic module depend on various factors such as light transmission, light refraction, heat generation, infrared radiation absorption of the environment, module heat dissipation and the like in the photoelectric conversion process. For solar light utilization in the packaged crystalline silicon photovoltaic module, the high-reflectivity backboard material is adopted to reflect light between the battery pieces back to the silicon battery piece surface again, and then the light is utilized by the battery pieces through reflection of glass, so that the short-circuit current density of the module can be increased, and the power generation efficiency of the battery is further improved. The higher the reflectivity of the backsheet material, the higher the conversion efficiency of the crystalline silicon photovoltaic module has been demonstrated in the literature. The crystalline silicon solar cell is cooled, and the heat dissipation efficiency of the cell is improved by installing a ventilation device, a heat absorbing material, a heat pipe system and other equipment, but the installation and maintenance cost is higher.
Disclosure of utility model
The utility model provides a film-coated wavy stripe double-glass efficient photovoltaic module, which realizes efficient utilization of sunlight, slows down the temperature rise effect of a silicon solar cell and improves the photoelectric conversion efficiency of the photovoltaic module.
The technical scheme of the utility model is as follows: the utility model provides a high-efficient photovoltaic module of two glass of wave stripe of film, includes glass backplate, lower EVA layer, silicon solar cell piece tandem, goes up EVA layer, front bezel glass, is last EVA layer, lower EVA layer respectively below the silicon solar cell piece tandem, goes up EVA layer and is preceding board glass above, is glass backplate below the lower EVA layer, and glass backplate basic unit is super white toughened glass, and super white toughened glass upper surface coating has the reflection enhancement film layer, and the lower surface sets up to continuous wave stripe side by side.
Preferably, the thickness of the glass backboard is 0.12mm, the interval between adjacent wave crests of the wavy stripes is 0.1-0.2mm, and the included angle between the connecting lines of the wave crests and the wave troughs is 60-90 degrees.
The total area of the silicon solar cell series is less than 90% of the area of the glass backboard.
Further, the peaks of the wavy stripe are streamline.
The utility model has the beneficial effects that: the reflectivity of the back plate material is improved by coating the inner side surface of the glass back plate, so that the incident light quantity of the silicon solar cell is improved; the outer side surface of the glass backboard is provided with wavy stripes, so that the heat dissipation area is increased, the heat dissipation efficiency of the backboard of the photovoltaic module is improved, the temperature rise effect of the battery piece is reduced, the photoelectric conversion efficiency is maintained at a higher level, and the power generation efficiency of the photovoltaic module is improved by more than 5%.
Drawings
FIG. 1 is a cross-sectional view of the present utility model;
FIG. 2 is a cross-sectional view of a glass back plate;
FIG. 3 is a schematic diagram of a streamlined peak of a glass back plate;
FIG. 4 is a schematic view of the light reflection of the photovoltaic module of the present utility model;
FIG. 5 is a graph of output power versus an ordinary crystalline silicon photovoltaic module of the present utility model;
FIG. 6 is a schematic illustration of a glass back plate size marking;
Reference numerals in the drawings: 1-glass backboard, 2-lower EVA layer, 3-silicon solar cell series, 4-upper EVA layer, 5-front glass, 101-wave-shaped stripes, 102-super white toughened glass and 103-reflection-increasing film layer.
Detailed Description
As shown in the figure, an upper EVA layer 4 and a lower EVA layer 2 are respectively arranged above and below a silicon solar cell serial 3, front glass 5 is arranged above the upper EVA layer 4, a glass backboard 1 is arranged below the lower EVA layer 2, a base layer of the glass backboard 1 is super-white toughened glass 102, an antireflection film layer 103 is coated on the upper surface of the super-white toughened glass 102, and continuous side-by-side wavy stripes 101 are arranged on the lower surface of the super-white toughened glass. The junction box is fixed on the glass backboard 1, the glass backboard 1 is obtained through tempering, semi-tempering and chemical tempering treatment, and the photovoltaic module packaging structure and the packaging method are in the prior art and are not described in detail.
The thickness a of the glass backboard 1 is 0.12mm, the interval b between adjacent wave crests of the wavy strip 101 is 0.1-0.2mm, and the included angle theta between the wave crests and the connecting line of the trough bottoms is 60-90 degrees. The total area of the silicon solar cell strings 3 is less than 90% of the area of the glass back plate 1.
For the wave-shaped strip 101 in fig. 1 and 2, the peak is sharp, the transportation and the installation need to be carefully damaged, and personnel can be scratched, so that the peak of the wave-shaped strip 101 is better made into a streamline shape, the wave-shaped strip is convenient to manufacture, and the wave-shaped strip is not easy to damage.
Claims (4)
1. The utility model provides a high-efficient photovoltaic module of wave stripe dual glass of film, includes glass backplate (1), lower EVA layer (2), silicon solar cell piece tandem (3), goes up EVA layer (4), front bezel glass (5), is EVA layer (4) respectively above and below silicon solar cell piece tandem (3), lower EVA layer (2), is front bezel glass (5) above going up EVA layer (4), is glass backplate (1) below lower EVA layer (2), its characterized in that: the glass backboard (1) base layer is super white toughened glass (102), the upper surface of the super white toughened glass (102) is coated with a reflection increasing film layer (103), and the lower surface is provided with continuous and side-by-side wavy stripes (101).
2. The film coated wavy strip dual-glass high-efficiency photovoltaic module according to claim 1, wherein: the thickness of the glass backboard (1) is 0.12mm, the distance between adjacent wave crests of the wave-shaped stripes (101) is 0.1-0.2mm, and the included angle between the wave crest and the connecting line of the trough bottom is 60-90 degrees.
3. The film coated wavy strip dual-glass high-efficiency photovoltaic module according to claim 1, wherein: the total area of the silicon solar cell series (3) is less than 90% of the area of the glass back plate (1).
4. The film coated wavy strip dual-glass high-efficiency photovoltaic module according to claim 1, wherein: the wave crest of the wavy stripe (101) is streamline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323149376.2U CN221102103U (en) | 2023-11-22 | 2023-11-22 | Film-coated wave-shaped strip double-glass efficient photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323149376.2U CN221102103U (en) | 2023-11-22 | 2023-11-22 | Film-coated wave-shaped strip double-glass efficient photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221102103U true CN221102103U (en) | 2024-06-07 |
Family
ID=91317465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323149376.2U Active CN221102103U (en) | 2023-11-22 | 2023-11-22 | Film-coated wave-shaped strip double-glass efficient photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221102103U (en) |
-
2023
- 2023-11-22 CN CN202323149376.2U patent/CN221102103U/en active Active
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