CN219873560U - Light total reflection film for photovoltaic module - Google Patents
Light total reflection film for photovoltaic module Download PDFInfo
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- CN219873560U CN219873560U CN202320015087.4U CN202320015087U CN219873560U CN 219873560 U CN219873560 U CN 219873560U CN 202320015087 U CN202320015087 U CN 202320015087U CN 219873560 U CN219873560 U CN 219873560U
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- light reflecting
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- 238000003466 welding Methods 0.000 claims abstract description 11
- 238000010248 power generation Methods 0.000 claims abstract description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 1
- 239000011521 glass Substances 0.000 abstract description 13
- 239000000758 substrate Substances 0.000 abstract description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 229910021419 crystalline silicon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a light total reflection film for a photovoltaic module, which comprises the following components: the light reflecting film sequentially comprises a light reflecting layer, a structural layer, a substrate layer and a bonding layer from top to bottom, wherein the substrate layer is positioned above the bonding layer, the structural layer is positioned above the substrate layer, and the light reflecting layer is positioned on the structural layer; the solar power generation panel assembly comprises a back plate, a first EVA layer is arranged on the back plate, a solar cell panel is arranged on the first EVA layer, a welding strip is arranged on the solar cell panel, a reflective film is arranged on the welding strip, and a second EVA layer is arranged above the reflective film. According to the solar light reflection device, the micro-pyramid structures are in pyramid shapes, the light reflection layer is arranged on the structural layer, gaps are not formed among the micro-pyramid structures, the upper surface of the base is filled completely, no plane exists, sunlight irradiated onto the light reflection layer can be reflected onto the glass plate and then reflected onto the solar cell plate through the glass plate, and the light energy conversion efficiency of the device is improved.
Description
Technical Field
The utility model relates to the technical field of photovoltaic solar cells, in particular to a light total reflection film for a photovoltaic module.
Background
Environmental problems associated with excessive use of fossil fuels have been overwhelmed, and clean renewable energy sources such as solar, wind, tidal and biomass energy have become the best alternative to fossil fuels. The photovoltaic module can directly convert solar energy into electric energy, the whole process is clean and pollution-free, and does not consume any other energy, so that photovoltaic power generation tends to occupy an important position in a future energy structure. At present, crystalline silicon photovoltaic modules occupy a larger market share, solar cells in the crystalline silicon photovoltaic modules are connected in series by welding strips, and sunlight directly irradiated onto the welding strips in the photoelectric conversion process is reflected and cannot be utilized, so that the waste of the sunlight is caused. In addition, gaps exist between the solar panels, and sunlight irradiated to the regions is not effectively utilized.
According to Chinese national patent publication No.: CN208336241U discloses a film with a reflective microstructure, in particular a light total reflection film for a photovoltaic module. The light-reflecting layer comprises a microstructure light-reflecting layer, a substrate layer and a bonding layer, wherein the microstructure light-reflecting layer is arranged on the upper surface of the substrate layer, the microstructure light-reflecting layer comprises a microstructure layer and a light-reflecting layer, the light-reflecting layer is arranged outside the microstructure layer, and the bonding layer is arranged on the lower surface of the substrate layer; the micro-structure layer is formed by continuously and regularly arranging a plurality of micro-cone structures, the bottom surface of the micro-cone is arranged on the upper surface of the basal layer, and the height of the micro-cone is perpendicular to the upper surface of the basal layer. The light reflecting microstructure in the light total reflection film for the photovoltaic module is conical, so that the light reflecting area can be increased, sunlight irradiated from different angles can be utilized, and the purposes of improving the light utilization rate and improving the output power of the photovoltaic module are achieved.
When the device is used, sunlight is reflected through the reflecting layer arranged on the microstructure layer, and then reflected to the solar cell panel through the glass plate, so that the full utilization of the sunlight is achieved, but as the microstructure layer is conical, planes exist among the conical microstructure layers, the sunlight irradiated on the planes cannot be reflected to the solar cell panel, the sunlight cannot be fully utilized, and the conversion efficiency is to be improved.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.
The present utility model has been made in view of the above-described problems with the conventional reflection film.
Therefore, the utility model aims to provide a light total reflection film for a photovoltaic module, which aims to solve the problems that when the device is used, sunlight is reflected through a reflecting layer arranged on a microstructure layer and then reflected to a solar cell panel through a glass plate, so that the full utilization of the sunlight is achieved, but because the microstructure layer is conical, planes exist among a plurality of conical microstructure layers, the sunlight irradiated on the planes cannot be reflected to the solar cell panel, the sunlight cannot be fully utilized, and the conversion efficiency is required to be improved.
In order to solve the technical problems, the utility model provides the following technical scheme:
a light total reflection film for a photovoltaic module, comprising:
the light reflecting film sequentially comprises a light reflecting layer, a structural layer, a substrate layer and a bonding layer from top to bottom, wherein the substrate layer is positioned above the bonding layer, the structural layer is positioned above the substrate layer, and the light reflecting layer is positioned on the structural layer;
the solar power generation panel assembly comprises a back plate, a first EVA layer is arranged on the back plate, a solar cell panel is arranged on the first EVA layer, a welding strip is arranged on the solar cell panel, a reflective film is arranged on the welding strip, and a second EVA layer is arranged above the reflective film.
As a preferred embodiment of the light total reflection film for a photovoltaic module according to the present utility model, wherein: the structure layer comprises a base, the base is located above the basal layer, a plurality of micro-pyramid structures are arranged on the base, the micro-pyramid structures are regularly arranged on the base, and the light reflecting layer is arranged on the micro-pyramid structures.
As a preferred embodiment of the light total reflection film for a photovoltaic module according to the present utility model, wherein: the structural layer is made of epoxy acrylate, polyester acrylate and polyurethane acrylate materials.
As a preferred embodiment of the light total reflection film for a photovoltaic module according to the present utility model, wherein: the second EVA layer is a high-gram-weight EVA front film.
As a preferred embodiment of the light total reflection film for a photovoltaic module according to the present utility model, wherein: the base angle of the micro pyramid structure is 30-60 degrees, the length of the base side is 30-1.5 mm, and the height is 50-2 mm.
As a preferred embodiment of the light total reflection film for a photovoltaic module according to the present utility model, wherein: the thickness of the base layer is set to 50 mu m-3 mm.
The utility model has the beneficial effects that:
the micro-pyramid structure is pyramid-shaped, the reflecting layer is arranged on the structural layer, gaps do not exist among the micro-pyramid structures, the upper surface of the base is filled completely, and no plane exists, so that sunlight irradiated onto the reflecting layer can be reflected onto the glass plate and then reflected onto the solar cell panel through the glass plate, and the light energy conversion efficiency of the device is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a schematic structural diagram of a total light reflection film for a photovoltaic module according to the present utility model;
fig. 2 is a reflection schematic diagram of a total reflection film for photovoltaic modules according to the present utility model.
In the figure: 100. a reflective film; 101. a light reflecting layer; 102. a structural layer; 102a, a base; 102b, a micro-pyramid structure; 103. a base layer; 104. a bonding layer; 200. a solar panel assembly; 201. a back plate; 202. a first EVA layer; 203. a solar cell panel; 204. welding a belt; 205. a second EVA layer; 206. a glass plate.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present utility model in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Referring to fig. 1-2, the present utility model provides a light total reflection film for a photovoltaic module, comprising:
the light reflecting film 100, the light reflecting film 100 sequentially comprises a light reflecting layer 101, a structural layer 102, a substrate layer 103 and a bonding layer 104 from top to bottom, wherein the substrate layer 103 is positioned above the bonding layer 104, the structural layer 102 is positioned above the substrate layer 103, and the light reflecting layer 101 is positioned on the structural layer 102;
the solar power generation panel assembly 200 comprises a backboard 201, a first EVA layer 202 is arranged on the backboard 201, a solar cell panel 203 is arranged on the first EVA layer 202, a welding strip 204 is arranged on the solar cell panel 203, a reflective film 100 is arranged on the welding strip 204, and a second EVA layer 205 is arranged above the reflective film 100.
The structural layer 102 includes a base 102a, the base 102a is located above the base layer 103, a plurality of micro-pyramid structures 102b are disposed on the base 102a, the micro-pyramid structures 102b are regularly arranged on the base 102a, the reflective layer 101 is disposed on the micro-pyramid structures 102b, the base 102a is attached to the base layer 103, the micro-pyramid structures 102b are regularly arranged on the base 102a, and no gaps exist between the micro-pyramid structures 102 b.
Further, the structural layer 102 is made of epoxy acrylate, polyester acrylate and polyurethane acrylate materials, so that the service life of the device is prolonged, and the reflection effect of the device on a light source is improved.
Further, the second EVA layer 205 is a high-gram-weight EVA front film, sunlight is incident to the surface of the reflective layer 101 through the glass plate 206, total reflection occurs on the surface of the reflective layer 101, light is reflected to the lower surface of the glass plate 206, and light is reflected to the battery piece from the lower surface of the glass plate 206, so that loss of light at the solder strip 204 is reduced, the reflective effect is greatly improved by matching the reflective layer 101 with the second EVA layer 205, the total light receiving amount of the battery string in the photovoltaic module is increased, and the power of the photovoltaic module is improved.
Further, the bottom angle of the micro-pyramid structure 102b is 30 degrees to 60 degrees, the bottom side length is 30 μm to 1.5mm, and the height is 50 μm to 2mm, so that the light can be totally reflected to the solar panel 203 through the glass plate 206 when the light irradiates on the micro-pyramid structure 102b, and the light energy utilization rate of the device is improved.
Further, the thickness of the base layer 103 is set to 50 μm to 3mm.
The micro-pyramid structures 102b are pyramid-shaped, the light reflecting layer 101 is arranged on the structural layer 102, gaps do not exist among the micro-pyramid structures 102b, the upper surface of the base 102a is completely filled, and no plane exists, so that sunlight irradiated onto the light reflecting layer 101 can be reflected onto the glass plate 206 and then reflected onto the solar cell panel 203 through the glass plate 206, and the light energy conversion efficiency of the device is improved.
It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.
Claims (5)
1. The utility model provides a photovoltaic module light total reflection membrane which characterized in that: comprising the following steps:
the light reflecting film (100), the light reflecting film (100) sequentially comprises a light reflecting layer (101), a structural layer (102), a base layer (103) and a bonding layer (104) from top to bottom, wherein the base layer (103) is positioned above the bonding layer (104), the structural layer (102) is positioned above the base layer (103), and the light reflecting layer (101) is positioned on the structural layer (102);
the solar power generation panel assembly (200) comprises a backboard (201), a first EVA layer (202) is arranged on the backboard (201), a solar cell panel (203) is arranged on the first EVA layer (202), a welding strip (204) is arranged on the solar cell panel (203), a light reflecting film (100) is arranged on the welding strip (204), and a second EVA layer (205) is arranged above the light reflecting film (100);
the structure layer (102) comprises a base (102 a), the base (102 a) is located above the base layer (103), a plurality of micro-pyramid structures (102 b) are arranged on the base (102 a), the micro-pyramid structures (102 b) are regularly arranged on the base (102 a), and the light reflecting layer (101) is arranged on the micro-pyramid structures (102 b).
2. The light total reflection film for a photovoltaic module according to claim 1, wherein: the structural layer (102) is made of epoxy acrylate, polyester acrylate and polyurethane acrylate materials.
3. The light total reflection film for a photovoltaic module according to claim 2, wherein: the second EVA layer (205) is a high-gram-weight EVA front film.
4. A light total reflection film for a photovoltaic module according to claim 3, wherein: the base angle of the micro-pyramid structure (102 b) is 30-60 degrees, the length of the base edge is 30-1.5 mm, and the height is 50-2 mm.
5. The light total reflection film for a photovoltaic module according to claim 4, wherein: the thickness of the base layer (103) is set to 50 [ mu ] m-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320015087.4U CN219873560U (en) | 2023-01-04 | 2023-01-04 | Light total reflection film for photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320015087.4U CN219873560U (en) | 2023-01-04 | 2023-01-04 | Light total reflection film for photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219873560U true CN219873560U (en) | 2023-10-20 |
Family
ID=88336484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320015087.4U Active CN219873560U (en) | 2023-01-04 | 2023-01-04 | Light total reflection film for photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219873560U (en) |
-
2023
- 2023-01-04 CN CN202320015087.4U patent/CN219873560U/en active Active
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