CN111769167A - Multi-main-grid photovoltaic module and preparation method thereof - Google Patents
Multi-main-grid photovoltaic module and preparation method thereof Download PDFInfo
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 26
- 229910052782 aluminium Inorganic materials 0.000 claims description 26
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 26
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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
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
- H01L31/022433—Particular geometry of the grid contacts
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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
- H01L31/04—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
- H01L31/048—Encapsulation of modules
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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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention discloses a multi-main-grid photovoltaic assembly, which comprises a frame, wherein the frame comprises an upper frame and a lower frame, a main grid is fixedly welded in the frame, an auxiliary grid is welded between the main grid and the frame, and a photovoltaic plate is welded in the auxiliary grid, and the multi-main-grid photovoltaic assembly also comprises a preparation method of the multi-main-grid photovoltaic assembly, wherein the preparation method comprises the following steps of S1: preparing and cutting the photovoltaic panel, S2: encapsulating the photovoltaic silicon sheet, S3: mounting a solar panel on the battery module, S4: welding the frame, the main grid and the sub-grid, S5: mounting the photovoltaic panel inside the sub-grid, S6: detecting the mounted photovoltaic panel; the photovoltaic panel is internally provided with the multiple groups of the main grids and the auxiliary grids, so that the consumption of voltage caused by impedance is reduced, the cost of the resistors is respectively reduced uniformly, the reliability of the photovoltaic panel is improved, the photovoltaic panel is not cracked, broken and cracked during production, and the stress of the multiple groups of batteries is dispersed.
Description
Technical Field
The invention belongs to the technical field of photovoltaic panels, particularly relates to a multi-main-grid photovoltaic module and further relates to a preparation method of the multi-main-grid photovoltaic module.
Background
Photovoltaic power generation is a technology of directly converting light energy into electric energy by using the photovoltaic effect of a semiconductor interface. The solar energy power generation system mainly comprises a solar panel (assembly), a controller and an inverter, and the main components are electronic components. Solar cells are connected in series and then are packaged and protected to form a large-area solar cell module, and then a photovoltaic power generation device is formed by matching with components such as a power controller and the like, wherein the main principle of photovoltaic power generation is the photoelectric effect of a semiconductor. When photons irradiate on the metal, the energy of the photons can be completely absorbed by certain electrons in the metal, and the energy absorbed by the electrons is large enough to overcome the internal attraction of the metal to work, so that the photons leave the surface of the metal and escape to form photoelectrons. The silicon atom has 4 outer electrons, and if the pure silicon is doped with 5 outer electron atoms such as phosphorus atom, the silicon atom becomes an N-type semiconductor; if atoms with 3 outer electrons, such as boron atoms, are doped into pure silicon, a P-type semiconductor is formed. When the P-type and the N-type are combined together, a potential difference is formed at the contact surface, and the solar cell is formed. When sunlight irradiates the P-N junction, current flows from the P-type side to the N-type side to form current, however, various photovoltaic panels in the market still have various problems.
Although the solar cell, the solar cell module and the method for manufacturing the same disclosed in the publication No. CN102760778A realize the interconnector to assemble the solar cell module, the interconnector connection cost is low; in addition, due to the existence of the first insulating medium layer on the back of the solar cell, the insulating and isolating characteristics of the solar cell are good, but the problems that the existing photovoltaic panel has overhigh impedance, causes large voltage consumption and the cost of the photovoltaic panel, and makes the photovoltaic panel unstable, is easy to crack, break a grid and break, has uniform resistance distribution part and the like are not solved, so that the multi-main-grid photovoltaic module and the preparation method thereof are provided.
Disclosure of Invention
The invention aims to provide a multi-main-grid photovoltaic module and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a many main bars photovoltaic module, includes the frame, the frame is including last frame and underframe, the fixed welding in inside of frame has the main bars, the main bars with the welding has the vice bars between the frame, the inside welding of vice bars has the photovoltaic board, the photovoltaic board is including battery module, solar panel and photovoltaic membrane, battery module fixed mounting be in the bottom of vice bars, solar panel fixed mounting be in battery module's upper portion, photovoltaic membrane fixed mounting be in solar panel's upper portion.
Preferably, the main grids are welded between the upper frame and the lower frame at two ends, and the three groups of main grids are electrically connected.
Preferably, the auxiliary grid and the main grid are electrically connected.
Preferably, the main grid is electrically connected with the battery modules, and the bottoms of the battery modules are fixedly connected with battery substrates respectively.
Preferably, the solar panel is a crystalline silicon solar panel, and aluminum-containing silver paste printed on the crystalline silicon solar panel is electrically connected with the main grid.
Preferably, the photovoltaic film is a PE black photovoltaic film, the photovoltaic panel has a length of 80mm and a width of 40mm, and the current transmission path of the photovoltaic panel has a length of 2.8 mm.
A preparation method of a multi-main-grid photovoltaic module comprises the following preparation steps:
s1: preparing and cutting a photovoltaic panel: carrying out silicon ingot manufacturing on the polycrystalline silicon, and cutting the photovoltaic panel into silicon wafers, wherein the length of each silicon wafer is 80-100mm, and the width of each silicon wafer is 40-60 mm;
s2: encapsulating the photovoltaic silica gel sheet: cleaning, acidifying and silvering the cut silicon wafer in the step S1, and then assembling the processed silicon wafer to form a solar panel;
s3: the solar panel is arranged on the battery module, the solar panel is electrically connected with the battery module through aluminum-containing silver paste, and the photovoltaic film is fixedly adhered to the upper part of the solar panel through EVA heat-conducting packaging glue;
s4: welding the frame, the main grid and the auxiliary grid: welding the frames, welding a main grid between an upper frame and a lower frame at two ends of each frame, welding the main grid in the middle of each frame, and welding an auxiliary grid between the main grids, wherein the length of each auxiliary grid is 80-100mm, and the width of each auxiliary grid is 40-60 mm;
s5: installing the photovoltaic panel inside the secondary grid: fixedly mounting a photovoltaic panel inside the auxiliary grid, and electrically connecting the battery module with the auxiliary grid through aluminum-containing silver paste;
s6: detecting the mounted photovoltaic panel: after the photovoltaic panel is arranged between the auxiliary grids, the photovoltaic panel is detected, the photovoltaic panel can normally operate, and whether the photovoltaic panel generates normal voltage and current or not is detected.
Preferably, the EVA thermal conductive encapsulant in S3 includes an ethylene-vinyl acetate copolymer and 10-20 parts by weight of thermal conductive powder with respect to 100 parts by weight of the ethylene-vinyl acetate copolymer.
Preferably, the auxiliary grid in the step S4 is electrically connected with the main grid through aluminum-containing silver paste, the main grid is at least provided with three groups, and the main grid is electrically connected through aluminum-containing silver paste.
Preferably, the detection of the photovoltaic panel by S6 further includes detection of impedance between the primary grid and the secondary grid, and detection of subfissure, broken grid, and crack of the photovoltaic panel.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the photovoltaic panel, the multiple groups of the main grids and the auxiliary grids are arranged in the photovoltaic panel, so that the power generation of the photovoltaic panel is rapidly transmitted, the large consumption of voltage due to impedance is reduced, the resistance on the photovoltaic panel is uniformly distributed due to the arrangement of the multiple groups of the main grids and the auxiliary grids, the cost is reduced, and the reliability of the photovoltaic panel is improved.
(2) According to the invention, during preparation, a plurality of groups of grids are arranged, so that the photovoltaic panel is not cracked, broken and cracked during production, the stress of the plurality of groups of batteries is dispersed, the mechanical energy of the battery piece is further improved, and the resistance and the current distribution on the battery piece are more uniform and the consumption is reduced due to the arrangement of the plurality of groups of grids.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the part A of the present invention.
In the figure: 1. a frame; 101. an upper frame; 102. a lower frame; 2. a main grid; 3. a secondary grid; 4. a photovoltaic panel; 5. a battery module; 6. a solar panel; 7. a photovoltaic film.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution:
the first embodiment is as follows:
a multi-main-grid photovoltaic component comprises a frame 1, wherein the frame 1 comprises an upper frame 101 and a lower frame 102, a main grid 2 is fixedly welded inside the frame 1, an auxiliary grid 3 is welded between the main grid 2 and the frame 1, a photovoltaic panel 4 is welded inside the auxiliary grid 3, the photovoltaic panel 4 comprises a battery module 5, a solar panel 6 and a photovoltaic film 7, the battery module 5 is fixedly installed at the bottom of the auxiliary grid 3, the solar panel 6 is fixedly installed at the upper part of the battery module 5, the photovoltaic film 7 is fixedly installed at the upper part of the solar panel 6, when the multi-main-grid photovoltaic component is used, the photovoltaic film 7 collects illumination and transmits the illumination to the solar panel 6, so that the solar panel 6 runs to generate current, the current is transmitted to the battery module 5 for storage through electrical connection of aluminum-containing silver paste, the current is transmitted to the main grid 2 through the auxiliary grid 3 by the battery module 5, and realizing photovoltaic power generation.
In order to realize the setting of the plurality of groups of main grids 2, reduce the area of the photovoltaic panel 4, and reduce the power consumption of the photovoltaic panel 4, in this embodiment, it is preferable that the main grids 2 are also welded between the upper frame 101 and the lower frame 102 at the two ends, and the three groups of main grids 2 are electrically connected.
The electrical connection between the main grid 2 and the auxiliary grid 3 here enables stable transmission of current, and in the present embodiment, the electrical connection between the auxiliary grid 3 and the main grid 2 is preferred.
The electrical connection of the battery module 5 here realizes the transmission of current, and the battery substrate can realize the fixed mounting of the battery module 5, in this embodiment, preferably, the electrical connection between the main grid 2 and the battery module 5, and the bottom of the battery module 5 is fixedly connected with the battery substrate respectively.
The aluminium-containing silver paste of this department can realize the current transmission of low impedance, and in this embodiment, preferred, solar panel 6 adopts be brilliant silicon solar cell panel, and the printing has aluminium-containing silver paste and carries out electric connection with main grid 2 on the brilliant silicon solar cell panel.
The PE black photovoltaic film at this position can realize the light gathering and the protection effect, and the short transmission path can reduce the consumption of electric current, and in this embodiment, it is preferable that the photovoltaic film 7 adopts the PE black photovoltaic film, and the length of photovoltaic board 4 is 80mm, and the width is 40mm, and the length of the current transmission path of photovoltaic board 4 is 2.8 mm.
A preparation method of a multi-main-grid photovoltaic module comprises the following preparation steps:
s1: preparing and cutting a photovoltaic panel: carrying out silicon ingot manufacturing on the polycrystalline silicon, and cutting the photovoltaic panel into silicon wafers, wherein the length of each silicon wafer is 80mm, and the width of each silicon wafer is 40 mm;
s2: encapsulating the photovoltaic silica gel sheet: cleaning, acidifying and silvering the cut silicon wafer in the step S1, and then assembling the processed silicon wafer to form the solar panel 6;
s3: installing a solar panel 6 on the battery module 5, electrically connecting the solar panel 6 with the battery module 5 through aluminum-containing silver paste, and fixedly adhering a photovoltaic film 7 on the upper part of the solar panel 6 through EVA heat-conducting packaging glue;
s4: welding the frame 1, the main grid 2 and the auxiliary grid 3: welding a frame 1, welding a main grid 2 between an upper frame 101 and a lower frame 102 at two ends of the frame 1, welding the main grid 2 in the middle of the frame 1, and welding an auxiliary grid 3 between the main grids 2, wherein the length of the auxiliary grid 3 is between 80mm, and the width of the auxiliary grid 3 is between 40 mm;
s5: the photovoltaic panel 4 is mounted inside the secondary grid 3: fixedly mounting the photovoltaic panel 4 inside the auxiliary grid 3, and electrically connecting the battery module 5 with the auxiliary grid 3 through aluminum-containing silver paste;
s6: detecting the mounted photovoltaic panel 4: after the photovoltaic panel 4 is installed between the auxiliary grids 3, the photovoltaic panel 4 is detected, and whether the photovoltaic panel 4 can normally operate and whether the photovoltaic panel 4 generates normal voltage and current or not is detected.
The EVA heat conducting sealing adhesive herein can achieve both the fixed connection to the photovoltaic film 7 and the heat conduction, and in this embodiment, preferably, the EVA heat conducting sealing adhesive in S3 includes an ethylene-vinyl acetate copolymer and 10 parts by weight of heat conducting powder relative to 100 parts by weight of the ethylene-vinyl acetate copolymer.
Carry out electric connection through aluminium-containing silver paste between the vice bars 3 and the main bars 2 of this department, can realize the conduction of electric current, in this embodiment, preferably, vice bars 3 in S4 carries out electric connection through aluminium-containing silver paste and main bars 2, and main bars 2 is equipped with three groups at least, and three main bars 2 of group are through aluminium-containing silver paste electric connection.
In this embodiment, preferably, the detection of S6 on the photovoltaic panel 4 further includes the detection of impedance between the main grid 2 and the sub-grid 3, and the detection of subfissure, broken grid, and crack of the photovoltaic panel.
Example two:
a preparation method of a multi-main-grid photovoltaic module comprises the following preparation steps:
s1: preparing and cutting a photovoltaic panel: carrying out silicon ingot manufacturing on the polycrystalline silicon, and cutting the photovoltaic panel into silicon wafers, wherein the length of each silicon wafer is 100mm, and the width of each silicon wafer is 60 mm;
s2: encapsulating the photovoltaic silica gel sheet: cleaning, acidifying and silvering the cut silicon wafer in the step S1, and then assembling the processed silicon wafer to form the solar panel 6;
s3: installing a solar panel 6 on the battery module 5, electrically connecting the solar panel 6 with the battery module 5 through aluminum-containing silver paste, and fixedly adhering a photovoltaic film 7 on the upper part of the solar panel 6 through EVA heat-conducting packaging glue;
s4: welding the frame 1, the main grid 2 and the auxiliary grid 3: welding a frame 1, welding a main grid 2 between an upper frame 101 and a lower frame 102 at two ends of the frame 1, welding the main grid 2 in the middle of the frame 1, and welding an auxiliary grid 3 between the main grids 2, wherein the length of the auxiliary grid 3 is 100mm, and the width of the auxiliary grid 3 is 60 mm;
s5: the photovoltaic panel 4 is mounted inside the secondary grid 3: fixedly mounting the photovoltaic panel 4 inside the auxiliary grid 3, and electrically connecting the battery module 5 with the auxiliary grid 3 through aluminum-containing silver paste;
s6: detecting the mounted photovoltaic panel 4: after the photovoltaic panel 4 is installed between the auxiliary grids 3, the photovoltaic panel 4 is detected, and whether the photovoltaic panel 4 can normally operate and whether the photovoltaic panel 4 generates normal voltage and current or not is detected.
The EVA heat conducting sealing adhesive herein can achieve both the fixed connection to the photovoltaic film 7 and the heat conduction, and in this embodiment, preferably, the EVA heat conducting sealing adhesive in S3 includes an ethylene-vinyl acetate copolymer and 20 parts by weight of heat conducting powder relative to 100 parts by weight of the ethylene-vinyl acetate copolymer.
Carry out electric connection through aluminium-containing silver paste between the vice bars 3 and the main bars 2 of this department, can realize the conduction of electric current, in this embodiment, preferably, vice bars 3 in S4 carries out electric connection through aluminium-containing silver paste and main bars 2, and main bars 2 is equipped with three groups at least, and three main bars 2 of group are through aluminium-containing silver paste electric connection.
In this embodiment, preferably, the detection of S6 on the photovoltaic panel 4 further includes the detection of impedance between the main grid 2 and the sub-grid 3, and the detection of subfissure, broken grid, and crack of the photovoltaic panel.
The working principle and the using process of the invention are as follows: when the photovoltaic power generation device is used, the photovoltaic film 7 collects illumination and transmits the illumination to the solar panel 6, so that the solar panel 6 runs to generate current, the current is transmitted to the battery module 5 for storage through the electrical connection of aluminum-containing silver paste, the battery module 5 transmits the current to the main grid 2 through the auxiliary grid 3, and the main grid 2 transmits the current out, and photovoltaic power generation is realized;
the first step is as follows: preparing and cutting a photovoltaic panel: carrying out silicon ingot manufacturing on the polycrystalline silicon, and cutting the photovoltaic panel into silicon wafers, wherein the length of each silicon wafer is 100mm, and the width of each silicon wafer is 60 mm;
the second step is that: encapsulating the photovoltaic silica gel sheet: cleaning, acidifying and silvering the cut silicon wafer in the step S1, and then assembling the processed silicon wafer to form the solar panel 6;
the third step: installing a solar panel 6 on the battery module 5, electrically connecting the solar panel 6 with the battery module 5 through aluminum-containing silver paste, and fixedly adhering a photovoltaic film 7 on the upper part of the solar panel 6 through EVA heat-conducting packaging glue;
the fourth step: welding the frame 1, the main grid 2 and the auxiliary grid 3: welding a frame 1, welding a main grid 2 between an upper frame 101 and a lower frame 102 at two ends of the frame 1, welding the main grid 2 in the middle of the frame 1, and welding an auxiliary grid 3 between the main grids 2, wherein the length of the auxiliary grid 3 is 100mm, and the width of the auxiliary grid 3 is 60 mm;
the fifth step: installing a photovoltaic panel 4 inside the auxiliary grid 3, fixedly installing the photovoltaic panel 4 inside the auxiliary grid 3, and electrically connecting the battery module 5 with the auxiliary grid 3 through aluminum-containing silver paste;
and a sixth step: detecting the mounted photovoltaic panel 4: after the photovoltaic panel 4 is installed between the auxiliary grids 3, the photovoltaic panel 4 is detected, and whether the photovoltaic panel 4 can normally operate and whether the photovoltaic panel 4 generates normal voltage and current or not is detected.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A multi-main-grid photovoltaic module comprising a frame (1), characterized in that: frame (1) is including last frame (101) and underframe (102), the inside fixed welding of frame (1) has main grid (2), main grid (2) with welding has vice grid (3) between frame (1), the inside welding of vice grid (3) has photovoltaic board (4), photovoltaic board (4) are including battery module (5), solar panel (6) and photovoltaic membrane (7), battery module (5) fixed mounting be in the bottom of vice grid (3), solar panel (6) fixed mounting be in the upper portion of battery module (5), photovoltaic membrane (7) fixed mounting be in the upper portion of solar panel (6).
2. The multi-main-grid photovoltaic module of claim 1, wherein: the main grids (2) are welded between the upper frame (101) and the lower frame (102) at two ends, and the three groups of main grids (2) are electrically connected.
3. The multi-main-grid photovoltaic module of claim 1, wherein: the auxiliary grid (3) is electrically connected with the main grid (2).
4. The multi-main-grid photovoltaic module of claim 2, wherein: the main grid (2) is electrically connected with the battery modules (5), and the bottoms of the battery modules (5) are respectively and fixedly connected with battery substrates.
5. The multi-main-grid photovoltaic module of claim 1, wherein: the solar panel (6) adopts a crystalline silicon solar panel, and aluminum-containing silver paste is printed on the crystalline silicon solar panel and is electrically connected with the main grid (2).
6. The multi-main-grid photovoltaic module of claim 1, wherein: the photovoltaic film (7) adopts a PE black photovoltaic film, the length of the photovoltaic panel (4) is 80mm, the width of the photovoltaic panel is 40mm, and the length of a current transmission path of the photovoltaic panel (4) is 2.8 mm.
7. A method for preparing a multi-main-grid photovoltaic module according to claim 1, comprising the following steps:
s1: preparing and cutting a photovoltaic panel: carrying out silicon ingot manufacturing on the polycrystalline silicon, and cutting the photovoltaic panel into silicon wafers, wherein the length of each silicon wafer is 80-100mm, and the width of each silicon wafer is 40-60 mm;
s2: encapsulating the photovoltaic silica gel sheet: cleaning, acidifying and silvering the cut silicon slice in the S1, and then assembling the processed silicon slice to form a solar panel (6);
s3: the solar panel (6) is installed on the battery module (5), the solar panel (6) is electrically connected with the battery module (5) through aluminum-containing silver paste, and the photovoltaic film (7) is fixedly adhered to the upper part of the solar panel (6) through EVA heat-conducting packaging glue;
s4: welding frame (1), main grid (2) and auxiliary grid (3): welding a frame (1), welding a main grid (2) between an upper frame (101) and a lower frame (102) at two ends of the frame (1), welding the main grid (2) in the middle of the frame (1), and welding an auxiliary grid (3) between the main grids (2), wherein the length of the auxiliary grid (3) is between 80 and 100mm, and the width of the auxiliary grid is between 40 and 60 mm;
s5: installing a photovoltaic panel (4) inside the secondary grid (3): fixedly mounting a photovoltaic panel (4) in the auxiliary grid (3), and electrically connecting a battery module (5) with the auxiliary grid (3) through aluminum-containing silver paste;
s6: detecting the mounted photovoltaic panel (4): after the photovoltaic panel (4) is arranged between the auxiliary grids (3), the photovoltaic panel (4) is detected, the photovoltaic panel (4) can normally operate, and whether the photovoltaic panel (4) generates normal voltage and current or not is detected.
8. The method for preparing a multi-main-grid photovoltaic module according to claim 1, wherein the method comprises the following steps: the EVA heat-conducting packaging adhesive in S3 comprises ethylene-vinyl acetate copolymer and 10-20 parts by weight of heat-conducting powder relative to 100 parts by weight of the ethylene-vinyl acetate copolymer.
9. The method for preparing a multi-main-grid photovoltaic module according to claim 1, wherein the method comprises the following steps: vice bars (3) in S4 carry out electric connection through aluminium-containing silver thick liquid and main bars (2), main bars (2) are equipped with three groups at least, and three groups main bars (2) are through aluminium-containing silver thick liquid electric connection.
10. The method for preparing a multi-main-grid photovoltaic module according to claim 1, wherein the method comprises the following steps: the detection of the photovoltaic panel (4) by the S6 further comprises the detection of impedance between the main grid (2) and the auxiliary grid (3), and the detection of hidden cracking, broken grid and cracking of the photovoltaic panel.
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| WO2009092111A2 (en) * | 2008-01-18 | 2009-07-23 | Tenksolar, Inc. | Flat-plate photovoltaic module |
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| WO2009092111A2 (en) * | 2008-01-18 | 2009-07-23 | Tenksolar, Inc. | Flat-plate photovoltaic module |
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