CN220934098U - Colored double-glass photovoltaic module - Google Patents
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- CN220934098U CN220934098U CN202322691577.9U CN202322691577U CN220934098U CN 220934098 U CN220934098 U CN 220934098U CN 202322691577 U CN202322691577 U CN 202322691577U CN 220934098 U CN220934098 U CN 220934098U
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Abstract
The application relates to the field of photovoltaics, and discloses a color double-glass photovoltaic module, which comprises: a back glass substrate, a functional layer, a back packaging layer, a battery piece layer, a front packaging layer and a front glass substrate which are sequentially laminated from bottom to top; the cell layer comprises a plurality of solar cells; the functional layer includes a reflective film layer and a color film layer, the reflective film layer corresponds to an area of the gap of the solar cell, and the color film layer corresponds to an area other than the gap of the solar cell. According to the solar cell, the reflecting film layer is arranged in the gap area corresponding to the solar cell and reflects solar rays, so that most of the solar rays are reflected back to the front glass substrate and then irradiated onto the solar cell, the illumination intensity of the solar cell is increased, the maximum output power of the assembly is improved, and the efficient utilization of the solar rays is realized. The color film layer is arranged in the area except the gap of the solar cell, so that the colors of the components can be enriched, the overall aesthetic property of the components is improved, and better integration with a building is realized.
Description
Technical Field
The application relates to the field of photovoltaics, in particular to a color double-glass photovoltaic module.
Background
The photovoltaic module is a device capable of converting solar energy into electric energy, the double-glass photovoltaic module is one of the photovoltaic modules, and the front substrate and the back substrate in the double-glass photovoltaic module are both glass substrates. The double-glass photovoltaic module has the advantages that firstly, as the substrates on the front side and the back side are glass, the service life of the double-glass photovoltaic module is longer, the double-glass photovoltaic module has higher generated energy in the service life, the water permeability of the glass is almost zero, the double-glass photovoltaic module can not have the problems of snail marks, PID attenuation (potential Induced Degradation, potential induced attenuation) and the like caused by the water vapor entering the module, and has better weather resistance; secondly, the dual-glass photovoltaic module has lower power annual attenuation rate; third, the dual-glass photovoltaic module can meet higher system voltage, and system cost is saved.
The double-glass photovoltaic module is deeply favored by manufacturers and clients because of the advantages. However, the dual-glass photovoltaic module has certain problems at the same time. For example, as the back substrate is a glass substrate, the back glass substrate has certain light transmittance, so that the light energy utilization rate of the double-glass photovoltaic module is lower than that of a conventional Shan Boguang-volt module, and the packaging loss is larger; and, the overall color of dual-glass photovoltaic module is comparatively monotonous, and when dual-glass photovoltaic module was applied to the building, the overall harmony with the building was relatively poor.
Therefore, how to solve the above technical problems should be of great interest to those skilled in the art.
Disclosure of utility model
The application aims to provide a colored double-glass photovoltaic module so as to improve the utilization rate of light rays, enrich the colors of the double-glass photovoltaic module and realize better fusion with a building.
In order to solve the technical problems, the application provides a color double-glass photovoltaic module, which comprises:
A back glass substrate, a functional layer, a back packaging layer, a battery piece layer, a front packaging layer and a front glass substrate which are sequentially laminated from bottom to top;
The cell layer comprises a plurality of solar cells; the functional layer comprises a reflecting film layer and a color film layer, wherein the reflecting film layer corresponds to the area of the gap of the solar cell, and the color film layer corresponds to the area except the gap of the solar cell.
Optionally, the reflective film layer includes a plurality of parallel first reflective film layer units and a plurality of parallel second reflective film layer units, and the first reflective film layer units and the second reflective film layer units are vertically crossed and distributed.
Optionally, the width of the first reflective film layer unit is equal to or different from the width of the second reflective film layer unit, where the first reflective film layer unit corresponds to a gap area between solar cells in each string of cells, and the second reflective film layer unit corresponds to a gap area between solar cells in an adjacent string of cells.
Optionally, the width of the first reflective film layer unit is greater than or equal to 1.5 mm, and the width of the second reflective film layer unit is greater than or equal to 2mm.
Optionally, the thickness of the first reflective film layer unit and the second reflective film layer unit ranges from 0.05 mm to 0.45 mm.
Optionally, the color film layer includes at least two colors.
Optionally, the reflectivity of the reflective film layer is above 90%.
Optionally, the back side packaging layer and the front side packaging layer are any one of the following:
EVA film layer, POE film layer, EPE film layer.
Optionally, pits are distributed on the surface of the reflecting film layer opposite to the front glass substrate.
Optionally, the shape of the pit includes any one or any combination of pyramid, semicircle sphere, semi-ellipse sphere, cone.
The application provides a color double-glass photovoltaic module, which comprises: a back glass substrate, a functional layer, a back packaging layer, a battery piece layer, a front packaging layer and a front glass substrate which are sequentially laminated from bottom to top; the cell layer comprises a plurality of solar cells; the functional layer comprises a reflecting film layer and a color film layer, wherein the reflecting film layer corresponds to the area of the gap of the solar cell, and the color film layer corresponds to the area except the gap of the solar cell.
Therefore, the reflective film layer and the color film layer are arranged between the back glass substrate and the back packaging layer, the reflective film layer is correspondingly arranged at a gap of the solar cell, when solar rays are incident on the reflective film layer, the reflective film layer reflects the solar rays, so that most of the solar rays are reflected back to the front glass substrate and reflected again on the front glass substrate, and therefore the solar cells are irradiated, the illumination intensity of the solar cells is increased, the maximum output power of the dual-glass photovoltaic module is further improved, and the efficient utilization of the solar rays is realized. The color film layer has colors, and corresponds the region except the clearance of solar cell, and the color film layer area is big, can be very big richen the color of dual glass photovoltaic module, improves dual glass photovoltaic module's outward appearance, promotes dual glass photovoltaic module's whole aesthetic property. When the colored double-glass photovoltaic module is installed on a building, better fusion with the building can be realized.
Drawings
For a clearer description of embodiments of the application or of the prior art, the drawings that are used in the description of the embodiments or of the prior art will be briefly described, it being apparent that the drawings in the description below are only some embodiments of the application, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of a color dual-glass photovoltaic module according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a functional layer according to an embodiment of the present application;
In the figure, 1, a front glass substrate, 2, a front packaging layer, 3, a battery sheet layer, 4, a back packaging layer, 5, a back glass substrate, 6, a reflective film layer, 61, a first reflective film layer unit, 62, a second reflective film layer unit, 7 and a color film layer.
Detailed Description
In order to better understand the aspects of the present application, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
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.
As described in the background art, the existing dual-glass photovoltaic module has a larger packaging loss because the back substrate is a glass substrate and the back glass substrate has a certain light transmittance, so that the light energy utilization rate of the dual-glass photovoltaic module is lower than that of the conventional Shan Boguang-volt module; and, the overall color of dual-glass photovoltaic module is comparatively monotonous, and when dual-glass photovoltaic module was applied to the building, the overall harmony with the building was relatively poor.
In view of this, the present application provides a color dual-glass photovoltaic module, please refer to fig. 1, comprising:
A back glass substrate 5, a functional layer, a back packaging layer 4, a battery piece layer 3, a front packaging layer 2 and a front glass substrate 1 which are sequentially stacked from bottom to top;
The cell layer 3 includes a plurality of solar cells; the functional layers include a reflective film layer 6 and a color film layer 7, the reflective film layer 6 corresponds to a region of the solar cell gap, and the color film layer 7 corresponds to a region other than the solar cell gap.
It should be noted that the color dual-glass photovoltaic module further comprises a frame, a junction box and other components.
In order to enhance the strength of the front glass substrate 1 and the rear glass substrate 5, the front glass substrate 1 and the rear glass substrate 5 may be tempered glass substrates.
The battery sheet layer 3 includes battery strings each including a plurality of solar cells, and adjacent two solar cells are connected by a solder ribbon.
The reflective film layer 6 corresponds to both the gap regions between the solar cells in each string of cells and the gap regions between the solar cells of two adjacent strings of cells.
In the present embodiment, the front surface packaging layer 2 and the back surface packaging layer 4 are not particularly limited, and may be self-provided.
As an embodiment, the back surface encapsulation layer 4 and the front surface encapsulation layer 2 are any one of the following:
EVA (ethylene-VINYL ACETATE copolymer) film, POE (Poly (ethylene-1-octene) film, EPE (Expandable Polyethylene) film.
The back packaging layer 4 and the front packaging layer 2 can be the same film layer or different film layers, and are all within the protection scope of the application.
The back surface encapsulation layer 4 and the front surface encapsulation layer 2 bond the front surface glass substrate 1, the back surface glass substrate 5, the battery layer, and the functional layer as a whole. In the preparation process of the color double-glass photovoltaic module, a back glass substrate 5, a functional layer, a back packaging layer 4, a battery piece layer 3, a front packaging layer 2 and a front glass substrate 1 are placed in a laminating machine, the back packaging layer 4 and the front packaging layer 2 are respectively melted, crosslinked and cured under vacuum high temperature and pressure, and finally all layers of materials are formed into an integral photovoltaic module.
The color film 7 refers to a film having color, and the color type on the color film 7 is not limited in the present application, and may be set according to actual needs, for example, the color type may be blue, red, pink, green, yellow, etc.
As an alternative embodiment, the color film 7 may comprise only one color; however, the present application is not limited thereto, and as another embodiment, the color film 7 includes at least two colors, so that the color of the color film 7 is more gorgeous.
The thickness of the color film layer 7 may range from 0.05 mm to 0.45 mm, for example, the thickness of the color film layer 7 may be 0.05 mm, 0.1 mm, 0.2 mm, 0.3mm, 0.4 mm, 0.45 mm, etc., and specific values may be set by themselves.
The thickness of the color film layer 7 is set within the range of 0.05-0.45 mm, so that the color on the color film layer 7 can be well displayed on one hand, and the color film layer 7 is prevented from being too thick on the other hand, and the manufacturing cost is increased.
As an implementation manner, the reflectivity of the reflective film layer 6 is above 90%, the reflective film layer 6 has a good effect of reflecting solar rays, so that more solar rays can be irradiated onto the solar cell, the illumination intensity of the solar cell and the maximum output power of the double-glass photovoltaic module are further improved, and the utilization rate of the solar rays is increased.
The reflective film layer 6 and the color film layer 7 can be formed by vapor deposition, spray coating, thermal evaporation or magnetron sputtering.
The color dual-glass photovoltaic module is provided with a reflecting film layer 6 and a color film layer 7, the reflecting film layer 6 and the color film layer 7 are arranged between the back glass substrate 5 and the back packaging layer 4, the reflecting film layer 6 is correspondingly arranged in a gap of a solar cell, when solar rays are incident on the reflecting film layer 6, the reflecting film layer 6 reflects the solar rays, so that most of the solar rays are reflected back to the front glass substrate 1 and reflected again on the front glass substrate 1, and therefore the solar cell is irradiated, the illumination intensity of the solar cell is increased, the maximum output power of the dual-glass photovoltaic module is improved, and the high-efficiency utilization of the solar rays is realized. The color film layer 7 has colors, the color film layer 7 corresponds to the area except the gap of the solar cell, the area of the color film layer 7 is large, the colors of the double-glass photovoltaic module can be greatly enriched, the appearance of the double-glass photovoltaic module is improved, and the overall attractiveness of the double-glass photovoltaic module is improved. When the colored double-glass photovoltaic module is installed on a building, better fusion with the building can be realized.
On the basis of the above embodiment, in one embodiment of the present application, as shown in fig. 2, the reflective film 6 includes a plurality of parallel first reflective film units 61 and a plurality of parallel second reflective film units 62, and the first reflective film units 61 and the second reflective film units 62 are vertically crossed.
The number of the first reflective film units 61 and the number of the second reflective film units 62 are not limited in the present application, and depend on the arrangement of the solar cells in the color dual-glass photovoltaic module.
Because the reflective film layers 6 correspond to the regions of the gaps of the solar cells, the first reflective film layer units 61 are distributed in parallel with each other, the second reflective film layer units 62 are distributed in parallel with each other, and the first reflective film layer units 61 and the second reflective film layer units 62 are vertically and alternately distributed, the solar cells in the cell sheet layer 3 are arranged in the horizontal and vertical directions, that is, the solar cells are arranged in a regular array. When the size of the color double-glass photovoltaic module is fixed, more solar cells can be arranged in the cell layer 3, and the output power of the color double-glass photovoltaic module is increased.
In one embodiment of the present application, the width of the first reflective film layer unit 61 is equal to or different from the width of the second reflective film layer unit 62, where the first reflective film layer unit 61 corresponds to a gap region between solar cells in each string of cells, and the second reflective film layer unit 62 corresponds to a gap region between solar cells in an adjacent string of cells.
Note that the widths of the first reflective film layer unit 61 and the second reflective film layer unit 62 are not particularly limited in the present application. As an embodiment, the width of the first reflective film unit 61 is greater than or equal to 1.5 mm, and the width of the second reflective film unit 62 is greater than or equal to 2 mm.
In one embodiment of the present application, the thickness of the first reflective film layer unit 61 and the second reflective film layer unit 62 ranges from 0.05 mm to 0.45 mm. For example, the thicknesses of the first reflective film layer unit 61 and the second reflective film layer unit 62 may be 0.05 mm, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.45 mm, etc., and specific values may be set by themselves.
The thicknesses of the first reflective film layer unit 61 and the second reflective film layer unit 62 are set to be 0.05-0.45 mm, so that the reflective effect is ensured, the thickness is avoided, and the manufacturing cost is reduced.
On the basis of any of the above embodiments, in one embodiment of the present application, pits are distributed on the surface of the reflective film layer 6 opposite to the front glass substrate 1.
The shape of the pit includes, but is not limited to, any one or any combination of pyramid, semi-sphere, semi-elliptical sphere, cone.
In this embodiment, the concave pits are formed on the surface of the reflective film layer 6 opposite to the front substrate, so that the reflection path of the light can be optimized and adjusted, the solar light irradiated on the reflective film layer 6 is reflected for multiple times, the reflection effect of the reflective film layer 6 is improved, more light is irradiated on the solar cell, and the maximum output power of the photovoltaic module is further improved.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, so that the same or similar parts between the embodiments are referred to each other.
The color double-glass photovoltaic module provided by the application is described in detail above. The principles and embodiments of the present application have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the inventive arrangements and their core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the application can be made without departing from the principles of the application and these modifications and adaptations are intended to be within the scope of the application as defined in the following claims.
Claims (10)
1. A color dual-glass photovoltaic module, comprising:
A back glass substrate, a functional layer, a back packaging layer, a battery piece layer, a front packaging layer and a front glass substrate which are sequentially laminated from bottom to top;
The cell layer comprises a plurality of solar cells; the functional layer comprises a reflecting film layer and a color film layer, wherein the reflecting film layer corresponds to the area of the gap of the solar cell, and the color film layer corresponds to the area except the gap of the solar cell.
2. The colored dual-glass photovoltaic assembly of claim 1, wherein the reflective film layer comprises a plurality of parallel first reflective film layer units and a plurality of parallel second reflective film layer units, the first reflective film layer units and the second reflective film layer units being vertically crossed.
3. The colored dual-glass photovoltaic assembly of claim 2, wherein the width of the first reflective film layer unit is equal or unequal to the width of the second reflective film layer unit, wherein the first reflective film layer unit corresponds to a gap region between solar cells in each string of cells and the second reflective film layer unit corresponds to a gap region between solar cells in an adjacent string of cells.
4. The colored dual-glass photovoltaic assembly of claim 3, wherein the first reflective film unit has a width greater than or equal to 1.5 millimeters and the second reflective film unit has a width greater than or equal to 2 millimeters.
5. The colored dual-glass photovoltaic module of claim 2, wherein the first reflective film layer unit and the second reflective film layer unit have a thickness in the range of 0.05 mm to 0.45 mm.
6. The colored dual-glass photovoltaic module of claim 1, wherein the color film layer comprises at least two colors.
7. The colored dual-glass photovoltaic module of claim 1, wherein the reflective film layer has a reflectivity of greater than 90%.
8. The colored dual-glass photovoltaic assembly of claim 1, wherein the back side encapsulant layer and the front side encapsulant layer are any of:
EVA film layer, POE film layer, EPE film layer.
9. The colored dual-glass photovoltaic assembly of any of claims 1-8, wherein the reflective film layer has pits distributed on a surface opposite the front glass substrate.
10. The colored dual-glass photovoltaic module of claim 9, wherein the shape of the pits comprises any one or any combination of pyramids, semi-spheres, semi-ellipsoids, cones.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322691577.9U CN220934098U (en) | 2023-10-08 | 2023-10-08 | Colored double-glass photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322691577.9U CN220934098U (en) | 2023-10-08 | 2023-10-08 | Colored double-glass photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220934098U true CN220934098U (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322691577.9U Active CN220934098U (en) | 2023-10-08 | 2023-10-08 | Colored double-glass photovoltaic module |
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| CN (1) | CN220934098U (en) |
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2023
- 2023-10-08 CN CN202322691577.9U patent/CN220934098U/en active Active
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