CN213752725U - High-power photovoltaic module - Google Patents
High-power photovoltaic module Download PDFInfo
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- CN213752725U CN213752725U CN202023106486.7U CN202023106486U CN213752725U CN 213752725 U CN213752725 U CN 213752725U CN 202023106486 U CN202023106486 U CN 202023106486U CN 213752725 U CN213752725 U CN 213752725U
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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 high-power photovoltaic module, which comprises an aluminum frame, wherein a high-light-transmission glass layer, an upper EVA layer, a solar cell layer, a lower EVA layer, a reflective film layer and a back plate are sequentially arranged in the aluminum frame from top to bottom; the high printing opacity glass layer lower surface sets up a plurality of spheres sunken, solar cell intraformational battery piece forms the solar cell cluster through welding the area and concatenating the back, weld the area including have reflection of light structure, with the battery piece openly welded first soldering segment and with adjacent battery piece back welded second soldering segment, this photovoltaic module structural design is reasonable, the luminousness is high, light utilization is rateed highly, the bulk power is high.
Description
Technical Field
The utility model relates to a photovoltaic technology field especially relates to a high power photovoltaic module.
Background
Solar energy is the most important renewable energy source, has the characteristics of inexhaustibility, cleanness, no pollution and the like, and is rapidly developed in recent years. Photovoltaic module generally comprises glass apron, crystal silicon battery piece, backplate and EVA etc. however present glass apron is ordinary coating film because self structure scheduling problem has the problem that the luminousness is low, general glass apron, and the luminousness is about 92%, and light utilization ratio is not high, leads to photovoltaic module overall power to be lower, and how to improve photovoltaic module's power is urgent to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's shortcoming, providing a high power photovoltaic module that structural design is reasonable, the luminousness is high, light utilization rate is high.
In order to realize the purpose of the utility model, the technical proposal of the utility model is that:
a high-power photovoltaic module comprises an aluminum frame, wherein a high-light-transmission glass layer, an upper EVA layer, a solar cell layer, a lower EVA layer, a reflective film layer and a back plate are sequentially arranged in the aluminum frame from top to bottom; the solar cell string is formed by connecting a plurality of spherical depressions on the lower surface of the high-light-transmission glass layer in series through a welding strip, and the welding strip comprises a first welding section and a second welding section, wherein the first welding section is provided with a light reflecting structure and is welded with the front surface of a cell, and the second welding section is welded with the back surface of an adjacent cell.
Preferably, the high-transmittance glass layer comprises an ultra-white glass layer, an antireflection film layer arranged on the upper surface of the ultra-white glass layer, and an antireflection layer arranged on the lower surface of the ultra-white glass layer.
Preferably, the antireflection film layer is a nano porous silicon oxide film coating.
Preferably, the antireflection layer is a low refractive index porous silicon oxide coating.
Preferably, the cross section of the first welding section is trapezoidal, the light reflecting structure is a plurality of linear grooves which are arranged on the top surface of the first welding section and pressed at equal intervals along the length direction and used for reflecting light, a platform is formed between every two adjacent grooves, and the cross section of each groove is V-shaped.
Preferably, the upper EVA layer is made of a high-transmittance EVA material; the lower EVA layer is made of a high-cut-off EVA material.
Preferably, a first long groove is formed in the center of a joint surface of the first welding section and the front surface of the battery piece, and overflow grooves are formed in two sides of the first long groove and close to the end part of the joint surface.
The utility model has the advantages that:
firstly, the method comprises the following steps: the high-light-transmission glass layer and the antireflection film are arranged, so that more sunlight can penetrate through the ultra-white glass and enter the solar cell layer, the reflectivity is reduced, the transmissivity is improved, and the light utilization rate is improved; because a part of sunlight is reflected after being incident into the solar cell layer, the reflected sunlight is refracted when passing through the spherical recess arranged on the lower surface of the high-light-transmission glass layer, and finally the part of sunlight is guided to the solar cell layer again, so that the light utilization rate is further improved, and the power of the photovoltaic module is improved;
secondly, the method comprises the following steps: the first welding section is provided with the light reflecting structure, and the light rays can be irradiated on the cell again by utilizing the light reflecting structure to reflect the light rays, so that the utilization rate of the light rays can be improved, and the transmission power of the solar cell panel is further improved;
thirdly, the method comprises the following steps: a first long groove is formed in the center of the joint surface of the first welding section and the front surface of the battery slice; a certain deformation space is provided for the welding strip during expansion with heat and contraction with cold (especially in areas with large day and night temperature difference); the overflow groove is arranged to store the molten coating overflowing to the edge part in the welding process of the welding strip, so that the overflowing coating is prevented from occupying the light receiving surface of the cell;
fourthly: the lower EVA layer is made of high-cut-off EVA materials and is provided with a reflective film layer, so that light rays which are not irradiated on the cell piece can be reflected to the cell piece for secondary utilization.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a connection structure of the battery plate.
Fig. 3 is a perspective view of a first welding segment.
In the figure: 1 is an aluminum frame, 2 is a high-light-transmission glass layer, 2.1 is an ultra-white glass layer, 2.2 is an antireflection film layer, 2.3 is an antireflection layer, 2.4 is a recess, 3 is an upper EVA layer, 4 is a solar cell layer, 4.1 is a cell, 5 is a lower EVA layer, 6 is a light-reflecting film layer, 7 is a back plate, 8 is a solder strip, 8.1 is a first solder segment, 8.1.1 is a groove, 8.1.2 is a first long groove, 8.1.3 is an overflow groove, and 8.2 is a second solder segment.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
A high-power photovoltaic module comprises an aluminum frame 1, wherein a high-light-transmission glass layer 2, an upper EVA layer 3, a solar cell layer 4, a lower EVA layer 5, a light-reflecting film layer 6 and a back plate 7 are sequentially arranged in the aluminum frame 1 from top to bottom; the lower surface of the high-light-transmission glass layer 2 is provided with a plurality of spherical depressions 2.4, the solar cell string is formed after the solar cell 4.1 in the solar cell layer 4 is connected in series through the solder strip 8, the solder strip 8 comprises a first solder segment 8.1 with a light-reflecting structure and welded with the front surface of the cell 4.1 and a second solder segment 8.2 with the back surface of the adjacent cell 4.1, the connection mode can be a laminated tile type (as shown in fig. 2), the distance between the cells 4.1 can be further reduced, and the repeated description is omitted here for the prior art.
Preferably, the high-transmittance glass layer 2 includes an ultra-white glass layer 2.1, an antireflection film layer 2.2 disposed on the upper surface of the ultra-white glass layer 2.1, and an antireflection layer 2.3 disposed on the lower surface of the ultra-white glass layer 2.1.
Preferably, the antireflection film layer 2.2 is a nanoporous silica thin film coating.
Preferably, the antireflection layer 2.3 is a low refractive index porous silica coating.
Preferably, the cross section of the first welding section 8.1 is trapezoidal, the light reflecting structure is a plurality of linear grooves 8.1.1 which are arranged on the top surface of the first welding section 8.1 and pressed at equal intervals along the length direction and used for reflecting light, a platform is formed between every two adjacent grooves 8.1.1, and the cross section of each groove 8.1.1 is V-shaped.
Preferably, the upper EVA layer 3 is made of a high-transparency EVA material; the lower EVA layer 5 is made of a high cut-off EVA material.
Preferably, a first long groove 8.1.2 is arranged in the center of a joint surface of the first welding section 8.1 and the front surface of the battery piece 4.1, overflow grooves 8.1.3 are arranged on two sides of the first long groove 8.1.2 and close to the end part of the joint surface, and the section of the second welding section 8.2 is flat.
The described embodiments are only some, but not all embodiments of the invention. 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.
Claims (7)
1. The utility model provides a high power photovoltaic module, includes aluminium frame (1), its characterized in that: the high-light-transmission glass layer (2), the upper EVA layer (3), the solar cell layer (4), the lower EVA layer (5), the light-reflecting film layer (6) and the back plate (7) are sequentially arranged in the aluminum frame (1) from top to bottom; high printing opacity glass layer (2) lower surface sets up a plurality of sphere and caves in (2.4), form the solar cell cluster after battery piece (4.1) in solar cell layer (4) concatenates through welding area (8), weld area (8) including have reflecting structure, with battery piece (4.1) front welded first section of welding (8.1) and with adjacent battery piece (4.1) back welded second section of welding (8.2).
2. A high power photovoltaic module according to claim 1, characterized in that: the high-transmittance glass layer (2) comprises an ultra-white glass layer (2.1), an antireflection film layer (2.2) arranged on the upper surface of the ultra-white glass layer (2.1) and an antireflection layer (2.3) arranged on the lower surface of the ultra-white glass layer (2.1).
3. A high power photovoltaic module according to claim 2, characterized in that: the anti-reflection film layer (2.2) is a nano porous silicon oxide film coating.
4. A high power photovoltaic module according to claim 2, characterized in that: the antireflection layer (2.3) is a low-refractive-index porous silicon oxide coating.
5. A high power photovoltaic module according to claim 1, characterized in that: first welding section (8.1) cross-section is trapezoidal, a plurality of linear type recess (8.1.1) that are used for the reflection of light that the reflection of light structure is for setting up at first welding section (8.1) top surface along a plurality of being used for reflection of light of equidistant suppression of length direction, forms the platform between two adjacent recess (8.1.1), recess (8.1.1) cross-section is the V font.
6. A high power photovoltaic module according to claim 1, characterized in that: the upper EVA layer (3) is made of a high-transmittance EVA material; the lower EVA layer (5) is made of a high-cut-off EVA material.
7. A high power photovoltaic module according to claim 5, characterized in that: a first long groove (8.1.2) is formed in the center of a joint face of the first welding section (8.1) and the front face of the battery piece (4.1), and overflow grooves (8.1.3) are formed in the two sides of the first long groove (8.1.2) and close to the end part of the joint face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023106486.7U CN213752725U (en) | 2020-12-22 | 2020-12-22 | High-power photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023106486.7U CN213752725U (en) | 2020-12-22 | 2020-12-22 | High-power photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213752725U true CN213752725U (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023106486.7U Active CN213752725U (en) | 2020-12-22 | 2020-12-22 | High-power photovoltaic module |
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| CN (1) | CN213752725U (en) |
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2020
- 2020-12-22 CN CN202023106486.7U patent/CN213752725U/en active Active
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| GR01 | Patent grant | ||
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Address after: 214200 room 605, environmental protection technology building, Yixing new street street, Wuxi City, Jiangsu Province Patentee after: Jiangsu Jinshang New Energy Co.,Ltd. Address before: 214200 room 605, environmental protection technology building, Yixing new street street, Wuxi City, Jiangsu Province Patentee before: YIXING JINSHANG SOLAR ENERGY TECHNOLOGY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |