CN211320121U - Photovoltaic module and photovoltaic system - Google Patents
Photovoltaic module and photovoltaic system Download PDFInfo
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- CN211320121U CN211320121U CN202020352116.2U CN202020352116U CN211320121U CN 211320121 U CN211320121 U CN 211320121U CN 202020352116 U CN202020352116 U CN 202020352116U CN 211320121 U CN211320121 U CN 211320121U
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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
- Y02E10/52—PV systems with concentrators
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Abstract
The utility model discloses a photovoltaic module, which comprises a laminating part and a frame; the frame seals the laminated part at the side surface of the laminated part; the laminated part sequentially comprises a top layer protection plate, a top layer hot melt adhesive layer, a solar cell panel, a bottom layer hot melt adhesive layer and a bottom layer protection plate; the solar cell panel comprises a plurality of solar cell strings which are arranged at intervals; a first reflective belt is arranged between the bottom layer protection plate and the solar cell strings, and the first reflective belt is arranged in a projection area of a gap between the solar cell strings on the bottom layer protection plate. In consideration of the safety of the assembly, certain distance intervals are arranged between the battery pieces of the photovoltaic assembly and between the strings, and the utility model discloses a bottom protective plate position corresponding to the intervals is provided with the reflective belt, so that the light irradiation quantity of the battery pieces is increased, and the power of the photovoltaic assembly is improved in the aspect of optics. The utility model discloses still provide a photovoltaic system who has above-mentioned beneficial effect simultaneously.
Description
Technical Field
The utility model relates to a new energy device field especially relates to a photovoltaic module and photovoltaic system.
Background
Solar energy is regarded as an inexhaustible clean energy and is increasingly paid more attention by people in various fields. The solar cell has the function of converting solar energy into electric energy to push a terminal load to work. In recent years, the photovoltaic module technology has been developed dramatically, and the continuous innovation of the module technology is significant for realizing the low-price internet access of photovoltaic power generation. However, the power generation efficiency of the module is improved by various technical means, especially the important point to be considered in various problems.
Besides the improvement of the efficiency of the cell, the application of various technologies at the assembly end has the work of being not worn out, wherein the most important is to improve the incident quantity of light per unit area, and the photovoltaic assembly realizes power generation through the light flux irradiated on the cell. In view of the current finished component, the component string/piece gap area and the surrounding area occupy more than 6% of the component area, but the utilization rate of the light in these areas is extremely low, which causes great waste, and therefore, how to fully utilize the julian light leaked from the gap is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a photovoltaic module and photovoltaic system to solve the extravagant problem that leads to the generating efficiency to remain the improvement of the incident light that photovoltaic module exists among the prior art.
In order to solve the technical problem, the utility model provides a photovoltaic module, which comprises a laminating part and a frame;
the frame seals the laminated part at the side surface of the laminated part;
the laminated part sequentially comprises a top layer protection plate, a top layer hot melt adhesive layer, a solar cell panel, a bottom layer hot melt adhesive layer and a bottom layer protection plate;
the solar cell panel comprises a plurality of solar cell strings which are arranged at intervals;
a first reflective belt is arranged between the bottom layer protection plate and the solar cell strings, and the first reflective belt is arranged in a projection area of a gap between the solar cell strings on the bottom layer protection plate.
Optionally, in the photovoltaic module, the first reflective tape is a bilaterally symmetric reflective tape.
Optionally, in the photovoltaic module, the first light-reflecting strip includes a plurality of first protrusions, and a side surface of the first protrusion is a light-reflecting surface of the first light-reflecting strip;
the first protrusions are arranged in the extending direction which is perpendicular to the extending direction of the first reflective belt and parallel to the extending direction of the bottom protective plate.
Optionally, in the photovoltaic module, a second reflective belt is further disposed in a projection area of the gap between the solar panel and the frame on the bottom protective plate.
Optionally, in the photovoltaic module, the second light-reflecting strip includes a plurality of second protrusions, and a side surface of the second protrusion is a light-reflecting surface of the second light-reflecting strip;
the second protrusions are arranged in the extending direction which is perpendicular to the extending direction of the second reflective belt and parallel to the extending direction of the bottom protective plate.
Optionally, in the photovoltaic module, the width of the first light reflecting strip is 2 mm to 10 mm larger than the width of the gap corresponding to the first light reflecting strip, inclusive;
the width of the second light-reflecting band is 2 mm to 10 mm, inclusive, greater than the width of the gap to which the second light-reflecting band corresponds.
Optionally, in the photovoltaic module, a reflective paint layer is disposed on the surface of the reflective tape.
Optionally, in the photovoltaic module, the reflective coating layer is an aluminum layer.
Optionally, in the photovoltaic module, the photovoltaic module is a double-sided photovoltaic module.
A photovoltaic system comprising a photovoltaic module as claimed in any one of the above.
The utility model provides a photovoltaic module, which comprises a laminating part and a frame; the frame seals the laminated part at the side surface of the laminated part; the laminated part sequentially comprises a top layer protection plate, a top layer hot melt adhesive layer, a solar cell panel, a bottom layer hot melt adhesive layer and a bottom layer protection plate; the solar cell panel comprises a plurality of solar cell strings which are arranged at intervals; a first reflective belt is arranged between the bottom layer protection plate and the solar cell strings, and the first reflective belt is arranged in a projection area of a gap between the solar cell strings on the bottom layer protection plate. In consideration of the safety of the assembly, certain distance intervals are arranged between the battery plates of the photovoltaic assembly and between the strings, and the utility model discloses a bottom protective plate position corresponding to the intervals (namely the gaps) is provided with the reflective belt, so that the incident light which can not be irradiated to the solar battery string is reflected to be reused by the solar battery string, the light irradiation amount of the battery plates is increased, and the improvement of the power of the photovoltaic assembly is realized in the aspect of optics. The utility model discloses still provide a photovoltaic system who has above-mentioned beneficial effect simultaneously.
Drawings
In order to clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic top view of a photovoltaic module according to an embodiment of the present invention;
fig. 2 is a schematic front view of a photovoltaic module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first reflective tape according to another embodiment of the photovoltaic module provided by the present invention;
fig. 4 is a schematic top view of a photovoltaic module according to another embodiment of the present invention;
fig. 5 is a schematic structural view of a second reflective tape according to still another embodiment of the photovoltaic module provided by the present invention.
Detailed Description
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide a photovoltaic module, wherein the top view structure schematic diagram of one specific embodiment is shown in fig. 1, the front view structure schematic diagram is shown in fig. 2, which is called as the first specific embodiment and comprises a laminating part and a frame 200;
the frame 200 seals the laminate at its sides;
the laminated piece sequentially comprises a top layer protection plate 110, a top layer hot melt adhesive 120 layer, a solar panel 130, a bottom layer hot melt adhesive 140 layer and a bottom layer protection plate 150;
the solar cell panel 130 comprises a plurality of solar cell strings 131 arranged at intervals;
a first reflective belt 151 is arranged between the bottom protective plate 150 and the solar cell string 131, and the first reflective belt 151 is arranged in a projection area of a gap between the solar cell string 131 on the bottom protective plate 150.
The width of the first light-reflecting strip 151 is 2 mm to 10 mm greater than the width of the gap corresponding to the first light-reflecting strip 151, inclusive, such as any of 2.0 mm, 5.0 mm, or 10.0 mm; the width of the reflective strip should be slightly wider than the gap to ensure that as much light as possible that leaks through the gap is reflected, which is typically 2 to 3 times the width of the corresponding gap.
The surface of the reflective tape is provided with a reflective coating layer, and the reflectivity can be further increased by adding the reflective coating layer, so that the utilization rate of incident light is improved; furthermore, the reflective coating layer is an aluminum layer, so that the aluminum cost is low, and the reflective performance is good.
It should be noted that the photovoltaic module may be a double-sided photovoltaic module, and the bottom protective plate is a backlight plate of the double-sided photovoltaic module, i.e. a protective plate of a backlight surface.
In addition, the reflecting belt is a high polymer belt, the reflecting coating layer is arranged on the surface of the high polymer belt, the high polymer has strong viscosity and good plasticity, the setting is easy, and the production flow of the photovoltaic module can be greatly simplified; further, the high polymer tape is a polyester resin tape, i.e., a PET tape.
The utility model provides a photovoltaic module, which comprises a laminating part and a frame 200; the frame 200 seals the laminate at its sides; the laminated piece sequentially comprises a top layer protection plate 110, a top layer hot melt adhesive 120 layer, a solar panel 130, a bottom layer hot melt adhesive 140 layer and a bottom layer protection plate 150; the solar cell panel 130 comprises a plurality of solar cell strings 131 arranged at intervals; a first reflective belt 151 is arranged between the bottom protective plate 150 and the solar cell string 131, and the first reflective belt 151 is arranged in a projection area of a gap between the solar cell string 131 on the bottom protective plate 150. In consideration of the safety of the module, the photovoltaic module has certain distance intervals between the cells and between the strings, and the utility model discloses a set up the reflection band at the corresponding bottom protection plate 150 position in these intervals (namely the clearance), make originally can not shine the incident light of solar cell string 131 through the reflection by solar cell string 131 utilizes again, increased the light irradiation of cell, realized from the optics aspect the promotion of photovoltaic module power.
On the basis of the first embodiment, the reflective tape is further improved to obtain a second embodiment, in which a schematic cross-sectional view of the first reflective tape 151 is shown in fig. 3, and includes a laminate and a frame 200;
the frame 200 seals the laminate at its sides;
the laminated piece sequentially comprises a top layer protection plate 110, a top layer hot melt adhesive 120 layer, a solar panel 130, a bottom layer hot melt adhesive 140 layer and a bottom layer protection plate 150;
the solar cell panel 130 comprises a plurality of solar cell strings 131 arranged at intervals;
a first reflective belt 151 is arranged between the bottom protective plate 150 and the solar cell string 131, and the first reflective belt 151 is arranged in a projection area of a gap between the solar cell string 131 on the bottom protective plate 150;
the first reflective tape 151 comprises a plurality of first protrusions, and the side surfaces of the first protrusions are reflective surfaces of the first reflective tape 151;
the first protrusions are arranged in a direction perpendicular to the extending direction of the first reflective tape 151 and parallel to the extending direction of the floor sheathing 150.
The difference between the present embodiment and the foregoing embodiment is that the structure of the first reflective belt 151 is improved in the present embodiment, and the rest of the structure is the same as that of the foregoing embodiment, and therefore, the detailed description thereof is omitted.
In this embodiment, the structure defining the first reflective tape 151 includes a plurality of first protrusions arranged along the extending direction of the bottom protective sheet 150, the side surfaces of the first protrusions are reflective surfaces, and the reflective surfaces of the first protrusions are a plurality of side-by-side protrusions, so that the coverage area can be enlarged as much as possible while ensuring the reflection angle, and it is not difficult to imagine that if a single protrusion, such as a reflective tape having a triangular cross-section, is used instead of a plurality of protrusions, the triangular reflective tape and the solar cell sheet need not be overlapped in the laminating direction of the laminate in order to allow the light reflected from the top and the bottom of the triangle to be irradiated onto the adjacent solar cell sheet, thereby increasing the distance between the solar cell panel 130 and the bottom protective sheet 150, further complicating the encapsulation and simultaneously lowering the working stability of the photovoltaic module, by adopting the technical scheme of the specific embodiment, the structural stability of the photovoltaic module can be improved, and the service life of a device is prolonged.
Furthermore, the first reflective belts 151 are bilaterally symmetrical reflective belts, and the closer the actual power generation power of each solar cell string 131 is, the smaller the internal consumption of the assembly is, and the greater the output power is, so that by using the bilaterally symmetrical reflective belts, the illumination is uniformly distributed on the two solar cell strings 131, and the output power of the photovoltaic assembly can be further improved.
On the basis of the second embodiment, the position of the reflective tape is further enlarged to obtain a third embodiment, a schematic structural diagram of which is shown in fig. 4 and includes a laminating part and a frame 200;
the frame 200 seals the laminate at its sides;
the laminated piece sequentially comprises a top layer protection plate 110, a top layer hot melt adhesive 120 layer, a solar panel 130, a bottom layer hot melt adhesive 140 layer and a bottom layer protection plate 150;
the solar cell panel 130 comprises a plurality of solar cell strings 131 arranged at intervals;
a first reflective belt 151 is arranged between the bottom protective plate 150 and the solar cell string 131, and the first reflective belt 151 is arranged in a projection area of a gap between the solar cell string 131 on the bottom protective plate 150;
the first reflective tape 151 comprises a plurality of first protrusions, and the side surfaces of the first protrusions are reflective surfaces of the first reflective tape 151;
the first protrusions are arranged in a direction perpendicular to the extending direction of the first reflective tape 151 and parallel to the extending direction of the bottom protective sheet 150;
the gap between the solar panel 130 and the frame 200 is further provided with a second reflective belt 152 in the projection area on the floor guard 150.
The difference between the present embodiment and the foregoing embodiment is that a second reflective belt 152 is further disposed between the solar panel 130 and the frame 200 in the present embodiment, and the rest of the structure is the same as that in the foregoing embodiment, and will not be described herein again.
In this embodiment, a reflective band is additionally provided between the solar cell panel 130 and the frame 200, that is, the second reflective band 152 further enhances the utilization of incident light, reduces the waste caused by light leakage, and improves the power generation efficiency of the photovoltaic module. Of course, the second light reflecting band 152 may also include a plurality of second protrusions like the first light reflecting band 151, and the side surfaces of the second protrusions are the light reflecting surfaces of the second light reflecting band 152; the second protrusions are arranged in a direction perpendicular to the extending direction of the second reflective tape 152 and parallel to the extending direction of the floor sheathing 150. Of course, since the second reflective tape 152 has the solar cell panel 130 only on one of the left and right sides, it reflects light only on one side, and a specific cross-sectional view of the second reflective tape 152 is shown in fig. 5. In addition, also like the first light-reflective bands 151, the width of the second light-reflective bands 152 is 2 mm to 10 mm, inclusive, greater than the width of the gaps to which the second light-reflective bands 152 correspond; such as any of 2.0 millimeters, 5.0 millimeters, or 10.0 millimeters.
The utility model also provides a photovoltaic system with above-mentioned beneficial effect, photovoltaic system includes as above-mentioned any one photovoltaic module. The utility model provides a photovoltaic module, which comprises a laminating part and a frame 200; the frame 200 seals the laminate at its sides; the laminated piece sequentially comprises a top layer protection plate 110, a top layer hot melt adhesive 120 layer, a solar panel 130, a bottom layer hot melt adhesive 140 layer and a bottom layer protection plate 150; the solar cell panel 130 comprises a plurality of solar cell strings 131 arranged at intervals; a first reflective belt 151 is arranged between the bottom protective plate 150 and the solar cell string 131, and the first reflective belt 151 is arranged in a projection area of a gap between the solar cell string 131 on the bottom protective plate 150. In consideration of the safety of the module, the photovoltaic module has certain distance intervals between the cells and between the strings, and the utility model discloses a set up the reflection band at the corresponding bottom protection plate 150 position in these intervals (namely the clearance), make originally can not shine the incident light of solar cell string 131 through the reflection by solar cell string 131 utilizes again, increased the light irradiation of cell, realized from the optics aspect the promotion of photovoltaic module power.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is to be noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It is right above the utility model provides a photovoltaic module and new photovoltaic system have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A photovoltaic module is characterized by comprising a laminated part and a frame;
the frame seals the laminated part at the side surface of the laminated part;
the laminated part sequentially comprises a top layer protection plate, a top layer hot melt adhesive layer, a solar cell panel, a bottom layer hot melt adhesive layer and a bottom layer protection plate;
the solar cell panel comprises a plurality of solar cell strings which are arranged at intervals;
a first reflective belt is arranged between the bottom layer protection plate and the solar cell strings, and the first reflective belt is arranged in a projection area of a gap between the solar cell strings on the bottom layer protection plate.
2. The photovoltaic module of claim 1, wherein the first light reflecting band is a bilaterally symmetric light reflecting band.
3. The photovoltaic module of claim 2, wherein the first light-reflecting tape comprises a plurality of first protrusions, the first protrusions flanking the light-reflecting surface of the first light-reflecting tape;
the first protrusions are arranged in the extending direction which is perpendicular to the extending direction of the first reflective belt and parallel to the extending direction of the bottom protective plate.
4. The photovoltaic module of claim 1, wherein the gap between the solar panel and the bezel further comprises a second reflective strip disposed in a projected area on the backsheet.
5. The photovoltaic module of claim 4, wherein the second light-reflecting tape comprises a plurality of second protrusions, the side surfaces of the second protrusions being light-reflecting surfaces of the second light-reflecting tape;
the second protrusions are arranged in the extending direction which is perpendicular to the extending direction of the second reflective belt and parallel to the extending direction of the bottom protective plate.
6. The photovoltaic assembly of claim 4, wherein the width of the first light-reflective strip is 2 mm to 10 mm, inclusive, greater than the width of the gap to which the first light-reflective strip corresponds;
the width of the second light-reflecting band is 2 mm to 10 mm, inclusive, greater than the width of the gap to which the second light-reflecting band corresponds.
7. The photovoltaic module of claim 1, wherein the reflective tape surface is provided with a layer of reflective paint.
8. The photovoltaic module of claim 7, wherein the layer of reflectorized paint is an aluminum layer.
9. The photovoltaic module of claim 1, wherein the photovoltaic module is a bifacial photovoltaic module.
10. A photovoltaic system, characterized in that it comprises a photovoltaic module according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020352116.2U CN211320121U (en) | 2020-03-19 | 2020-03-19 | Photovoltaic module and photovoltaic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020352116.2U CN211320121U (en) | 2020-03-19 | 2020-03-19 | Photovoltaic module and photovoltaic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211320121U true CN211320121U (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020352116.2U Active CN211320121U (en) | 2020-03-19 | 2020-03-19 | Photovoltaic module and photovoltaic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211320121U (en) |
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2020
- 2020-03-19 CN CN202020352116.2U patent/CN211320121U/en active Active
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