CN112786728A - Solar photovoltaic cell with changed texture - Google Patents
Solar photovoltaic cell with changed texture Download PDFInfo
- Publication number
- CN112786728A CN112786728A CN202110025209.3A CN202110025209A CN112786728A CN 112786728 A CN112786728 A CN 112786728A CN 202110025209 A CN202110025209 A CN 202110025209A CN 112786728 A CN112786728 A CN 112786728A
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- photovoltaic cell
- heat conduction
- cell
- solar photovoltaic
- conductive strip
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- 239000012790 adhesive layer Substances 0.000 claims description 21
- 239000010410 layer Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 5
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000003292 glue Substances 0.000 description 10
- 238000010248 power generation Methods 0.000 description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical group [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 239000008187 granular material Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910017083 AlN Inorganic materials 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0236—Special surface textures
- H01L31/02366—Special surface textures of the substrate or of a layer on the substrate, e.g. textured ITO/glass substrate or superstrate, textured polymer layer on glass substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
- H01L31/0516—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module specially adapted for interconnection of back-contact solar cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/052—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
-
- 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
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a solar photovoltaic cell capable of changing textures, which relates to the field of solar photovoltaic cells and adopts the technical scheme that: including a plurality of intercrossing's battery row, every a plurality of photovoltaic cell board in the battery row are parallelly connected ground electric connection each other, each the battery row is established ties each other and is connected ground electric connection, each all be equipped with the texture layer on the photovoltaic cell board, photovoltaic cell board distributes towards sun's lower surface has a plurality of recesses, each the panel all is equipped with the heat conduction area in one side of recess dorsad, increases solar panel's generating efficiency, improves solar panel heat conduction rate, extension solar panel life.
Description
Technical Field
The invention relates to the field of solar photovoltaic cells, in particular to a solar photovoltaic cell with a changed texture.
Background
The photovoltaic power generation mainly refers to a technology for converting solar energy into electric energy, and is popular with people because no pollution is produced and no energy is consumed in the photovoltaic power generation process.
Chinese patent with publication number CN208820726U discloses a single-polycrystal solar panel for a small solar power generation system, which has the technical scheme that: including single polycrystal solar panel, photovoltaic controller, battery and dc-to-ac converter, this solar power generation small system still includes frame, spring and mounting panel with single polycrystal solar panel in the frame, and the frame is the spring fixed connection mounting panel more than two through quantity, and the mounting panel is covered closely the erection card hole.
However, the solar panel is of a planar structure, the irradiation area of sunlight is the surface area of the solar panel, the power generation efficiency of the solar panel is not high, and the solar panel generates a large amount of heat in the photovoltaic power generation process, so that the temperature of the solar panel is increased, when the temperature is too high, the solar panel is easy to damage, and the service life of the solar panel is shortened.
Disclosure of Invention
The invention aims to provide a solar photovoltaic cell with changed textures, which increases the power generation efficiency of a solar panel, improves the heat conduction rate of the solar panel and prolongs the service life of the solar panel.
The technical purpose of the invention is realized by the following technical scheme: the solar photovoltaic cell comprises a plurality of mutually crossed cell lines, wherein a plurality of photovoltaic cell panels in each cell line are mutually connected in parallel and electrically connected, the cell lines are mutually connected in series and electrically connected, a texture layer is arranged on each photovoltaic cell panel, a plurality of grooves are distributed on the lower surface of each photovoltaic cell panel facing the sun, and a heat conduction belt is arranged in one side of each cell panel, which faces away from the grooves.
Preferably, the textured layer has a thickness in a range of 0.02 millimeters to 0.2 millimeters and the backing sheet has a tensile yield strength greater than or equal to 30 megapascals.
Preferably, each cell row comprises at least one conductive strip, and each conductive strip is connected with the back of the photovoltaic cell in the corresponding cell row.
Preferably, the thickness of each conductive strip is in a range of 0.02 mm to 0.2mm, the width of each conductive strip is in a range of 0.05 cm to 2 cm, and the length of each conductive strip is equal to the length of the corresponding cell row connected with the conductive strip.
Preferably, the heat conduction belt comprises a first heat conduction adhesive layer and a second heat conduction adhesive layer, heat conduction particles are filled in the first heat conduction adhesive layer and the second heat conduction adhesive layer, and a release film is arranged below the second heat conduction adhesive layer.
Preferably, the thickness of the first rubber bonding layer is 0.05-0.1 mm.
Preferably, the thickness of the second rubber bonding layer is 0.05-0.1 mm.
Preferably, the total thickness of the heat conduction strip is not more than 0.2mm, and the total thickness of the heat conduction strip is not less than 0.1 mm.
Preferably, the heat conducting particles are one or two mixtures of aluminum oxide and aluminum nitride particles.
In conclusion, the invention achieves the following beneficial effects: the generating efficiency of the solar panel is increased, the heat conduction rate of the solar panel is improved, and the service life of the solar panel is prolonged.
Drawings
FIG. 1 is a schematic diagram of a conductive strip structure according to the present embodiment;
FIG. 2 is a schematic structural diagram of a groove embodied in the present embodiment;
fig. 3 is a schematic structural view of the first thermal conductive adhesive layer and the second thermal conductive adhesive layer according to the embodiment. The method comprises the following steps of 1, photovoltaic cell panels; 2. a groove; 3. a conductive strip; 4. a thermally conductive tape; 41. a first heat-conducting adhesive layer; 42. a second heat-conducting adhesive layer; 5. and (4) a release film.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The solar photovoltaic cell with the changed textures comprises a plurality of mutually crossed cell rows, a plurality of photovoltaic cell panels 1 in each cell row are electrically connected in parallel, the cell rows are electrically connected in series, texture layers are arranged on the photovoltaic cell panels 1, a plurality of grooves 2 are distributed on the lower surfaces, facing the sun, of the photovoltaic cell panels, the grooves 2 increase the surface area of the solar panels, and the power generation efficiency of the solar panels is increased.
As shown in fig. 1-3, in addition, a heat conduction band 4 is disposed in one side of each cell panel facing away from the groove 2, the heat conduction band 4 includes a first heat conduction adhesive layer 41 and a second heat conduction adhesive layer 42, heat conduction particles are filled in the first heat conduction adhesive layer 41 and the second heat conduction adhesive layer 42, a release film 5 is disposed below the second heat conduction adhesive layer 42, the thickness of the first rubber adhesive layer is 0.05-0.1mm, the thickness of the second rubber adhesive layer is 0.05-0.1mm, the total thickness of the heat conduction band 4 is not more than 0.2mm, the total thickness of the heat conduction band 4 is more than 0.1mm, the heat conduction efficiency is reduced when the heat conduction band 4 is too thick and too thin, the heat conduction particles are one or a mixture of aluminum oxide and aluminum nitride particles, the heat conduction rate of the solar panel is increased, and the service life.
As in fig. 1-3, the textured layer has a thickness in a range of 0.02 millimeters to 0.2 millimeters and the backing sheet has a tensile yield strength greater than or equal to 30 megapascals.
As shown in fig. 1, each cell row includes at least one conductive strip 3, and each conductive strip 3 is connected to the back surface of the photovoltaic cell in the corresponding cell row.
As shown in fig. 1, the thickness of each conductive strip 3 is in the range of 0.02 mm to 0.2mm, the width of each conductive strip 3 is in the range of 0.05 cm to 2 cm, and the length of each conductive strip 3 is equal to the length of the corresponding cell row connected to the conductive strip 3.
Example 1
A solar photovoltaic cell with changed textures is disclosed, as shown in figure 1-2, comprising a plurality of cell lines which are mutually crossed, a plurality of photovoltaic cell panels 1 in each cell line are mutually and electrically connected in parallel, each cell line is mutually and electrically connected in series, each photovoltaic cell panel 1 is provided with a texture layer, a plurality of grooves 2 are distributed on the lower surface of the photovoltaic cell panel facing the sun, the grooves 2 increase the surface area of the solar panel, the thickness of the texture layer for increasing the generating efficiency of the solar panel is in the range of 0.02 mm to 0.2mm, and the tensile yield strength of the back plate is greater than or equal to 30 megapascals, each cell row comprises at least one conductive strip 3, each conductive strip 3 is respectively connected with the back of the photovoltaic cell in the corresponding cell row, the thickness of each conductive strip 3 is 0.2mm, the width of each conductive strip 3 is 2 cm, and the length of each conductive strip 3 is equal to the length of the corresponding cell row connected with the conductive strip 3.
All be equipped with heat conduction band 4 in one side of each panel recess 2 dorsad, heat conduction band 4 is including being equipped with first heat conduction glue film 41 and second heat conduction glue film 42, it has the heat conduction granule to fill in first heat conduction glue film 41 and the second heat conduction glue film 42, the below of second heat conduction glue film 42 is equipped with from type membrane 5, the thickness of first rubber adhesion coating is 0.05mm, the thickness of second rubber adhesion coating is 0.05mm, the heat conduction granule is aluminium oxide, one kind or two kinds of mixtures of aluminium nitride granule, improve solar panel heat conduction rate, extension solar panel life.
Taking a photovoltaic panel 1 on the market and a photovoltaic panel 2 and a photovoltaic panel 3 adopted by the invention, such as ECS-270M60, the mechanical parameters of the two photovoltaic panels are shown in Table 1:
TABLE 1
Calculating the conversion efficiency of two photovoltaic modules according to the requirement of the latest version of photovoltaic manufacturing industry standard condition issued by the Ministry of industry and belief, as shown in a table 2:
TABLE 2
The conversion efficiency of the 270W photovoltaic panel 1 was 16.6%, the conversion efficiency of the 300W photovoltaic panel 2 was 18.3%, and the conversion efficiency of the 285W photovoltaic panel 3 was 17.5%, from which it can be seen that the conversion efficiency of the 300W photovoltaic panel 2 was the highest.
Example 2
A solar photovoltaic cell with changed textures is disclosed, as shown in figure 1-2, comprising a plurality of cell lines which are mutually crossed, a plurality of photovoltaic cell panels 1 in each cell line are mutually and electrically connected in parallel, each cell line is mutually and electrically connected in series, each photovoltaic cell panel 1 is provided with a texture layer, a plurality of grooves 2 are distributed on the lower surface of the photovoltaic cell panel facing the sun, the grooves 2 increase the surface area of the solar panel, the thickness of the texture layer for increasing the generating efficiency of the solar panel is in the range of 0.02 mm to 0.2mm, and the tensile yield strength of the back plate is greater than or equal to 30 megapascals, each cell row comprises at least one conductive strip 3, each conductive strip 3 is respectively connected with the back of the photovoltaic cell in the corresponding cell row, the thickness of each conductive strip 3 is 0.2mm, the width of each conductive strip 3 is 2 cm, and the length of each conductive strip 3 is equal to the length of the corresponding cell row connected with the conductive strip 3.
All be equipped with heat conduction band 4 in one side of each panel recess 2 dorsad, heat conduction band 4 is including being equipped with first heat conduction glue film 41 and second heat conduction glue film 42, it has the heat conduction granule to fill in first heat conduction glue film 41 and the second heat conduction glue film 42, the below of second heat conduction glue film 42 is equipped with from type membrane 5, the thickness of first rubber adhesion coating is 0.1mm, the thickness of second rubber adhesion coating is 0.1mm, the heat conduction granule is aluminium oxide, one kind or two kinds of mixtures of aluminium nitride granule, improve solar panel heat conduction rate, extension solar panel life.
Taking a photovoltaic panel 1 on the market and a photovoltaic panel 2 and a photovoltaic panel 3 adopted by the invention, such as ECS-270M60, the mechanical parameters of the two photovoltaic panels are shown in Table 3:
TABLE 3
According to the requirement of the latest version of photovoltaic manufacturing industry standard condition issued by the Ministry of industry and belief, the conversion efficiency of two photovoltaic modules is calculated, as shown in the table 4:
TABLE 4
The conversion efficiency of the 270W photovoltaic panel 1 was 16.6%, the conversion efficiency of the 300W photovoltaic panel 2 was 19.0%, and the conversion efficiency of the 285W photovoltaic panel 3 was 17.3%, from which it can be seen that the conversion efficiency of the 300W photovoltaic panel 2 was the highest.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (9)
1. The solar photovoltaic cell with the changed textures is characterized by comprising a plurality of intercrossed cell lines, wherein a plurality of photovoltaic cell panels (1) in each cell line are electrically connected in parallel, the cell lines are electrically connected in series, texture layers are arranged on the photovoltaic cell panels (1), a plurality of grooves (2) are distributed on the lower surface, facing the sun, of the photovoltaic cell panels (1), and heat conducting strips (4) are arranged on one side, back to the grooves (2), of each cell panel.
2. The textured solar photovoltaic cell of claim 1, wherein: the textured layer has a thickness in a range of 0.02 millimeters to 0.2 millimeters, and the backsheet has a tensile yield strength greater than or equal to 30 megapascals.
3. The textured solar photovoltaic cell of claim 1, wherein: each cell row comprises at least one conductive strip (3), and each conductive strip (3) is connected with the back of the photovoltaic cell in the corresponding cell row.
4. The textured solar photovoltaic cell of claim 3, wherein: the thickness of each conductive strip (3) is in the range of 0.02 mm to 0.2mm, the width of each conductive strip (3) is in the range of 0.05 cm to 2 cm, and the length of each conductive strip (3) is equal to the length of the corresponding cell row connected with the conductive strip (3).
5. The textured solar photovoltaic cell of claim 1, wherein: the heat conduction belt (4) comprises a first heat conduction adhesive layer (41) and a second heat conduction adhesive layer (42), heat conduction particles are filled in the first heat conduction adhesive layer (41) and the second heat conduction adhesive layer (42), and a release film (5) is arranged below the second heat conduction adhesive layer (42).
6. The textured solar photovoltaic cell of claim 5, wherein: the thickness of the first rubber bonding layer is 0.05-0.1 mm.
7. The textured solar photovoltaic cell of claim 5, wherein: the thickness of the second rubber bonding layer is 0.05-0.1 mm.
8. The textured solar photovoltaic cell of claim 5, wherein: the total thickness of the heat conduction belt (4) is not more than 0.2mm, and the total thickness of the heat conduction belt (4) is not less than 0.1 mm.
9. The textured solar photovoltaic cell of claim 5, wherein: the heat conducting particles are one or a mixture of two of aluminum oxide particles and aluminum nitride particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110025209.3A CN112786728A (en) | 2021-01-08 | 2021-01-08 | Solar photovoltaic cell with changed texture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110025209.3A CN112786728A (en) | 2021-01-08 | 2021-01-08 | Solar photovoltaic cell with changed texture |
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| CN112786728A true CN112786728A (en) | 2021-05-11 |
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| CN202110025209.3A Pending CN112786728A (en) | 2021-01-08 | 2021-01-08 | Solar photovoltaic cell with changed texture |
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| CN203351626U (en) * | 2013-06-27 | 2013-12-18 | 信义光伏产业(安徽)控股有限公司 | Heatable glass used on photovoltaic assembly, and photovoltaic assembly |
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| CN101798439A (en) * | 2010-02-09 | 2010-08-11 | 广东生益科技股份有限公司 | Halogen-free high-thermal-conductivity resin composition and conductive adhesive film made from same |
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Application publication date: 20210511 |