CN111490106A - High-efficient two-sided photovoltaic module of half piece of many main grids - Google Patents
High-efficient two-sided photovoltaic module of half piece of many main grids Download PDFInfo
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- CN111490106A CN111490106A CN201911006799.4A CN201911006799A CN111490106A CN 111490106 A CN111490106 A CN 111490106A CN 201911006799 A CN201911006799 A CN 201911006799A CN 111490106 A CN111490106 A CN 111490106A
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 31
- 238000003466 welding Methods 0.000 claims abstract description 25
- 229910000679 solder Inorganic materials 0.000 claims abstract description 14
- 239000011521 glass Substances 0.000 claims abstract description 12
- 239000012528 membrane Substances 0.000 claims abstract description 11
- 239000004831 Hot glue Substances 0.000 claims abstract description 10
- 239000004411 aluminium Substances 0.000 claims abstract description 9
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 229910001174 tin-lead alloy Inorganic materials 0.000 claims description 3
- 230000031700 light absorption Effects 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000004519 manufacturing process Methods 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
- H01L31/0216—Coatings
- H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02167—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells
- H01L31/02168—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells the coatings being antireflective or having enhancing optical properties for the solar cells
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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
- H01L31/04—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
- H01L31/049—Protective back sheets
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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
- H01L31/05—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
- H01L31/0508—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 the interconnection means having a particular shape
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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
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Abstract
The invention discloses a high-efficiency multi-main-grid half-piece double-sided photovoltaic module which comprises an aluminum frame, wherein the structure of the aluminum frame is as follows from top to bottom: antireflection coated glass, positive hot melt adhesive membrane, the battery piece, back hot melt adhesive membrane, transparent backplate, the aluminium frame cover is on photovoltaic module outside surface, the battery piece passes through the super soft solder strip and connects formation seamless welding battery cluster, battery cluster clearance is equipped with vertical reflective membrane, the vertical intermediate position of transparent backplate has a plurality of trompil, converge the area and be connected with the super soft solder strip who is connected the battery piece and make the battery piece form complete circuit return circuit, converge the area simultaneously and draw forth from the trompil of transparent backplate and be connected with the terminal box. The invention can reduce the blank between the components, increase the light absorption area and improve the packaging density, thereby improving the photoelectric conversion efficiency, reducing the material cost, improving the power and the reliability of the components, simultaneously adjusting the angle of the aluminum frame, improving the light absorption efficiency and performing buffer protection on the collision of the aluminum frame.
Description
Technical Field
The invention relates to the technical field of photovoltaic modules, in particular to a high-efficiency multi-main-grid half-piece double-sided photovoltaic module.
Background
As the 'leaders' and the 'super leaders' plan take place in time, the photovoltaic industry of China is stepping into the active period of technical innovation. The conversion efficiency and the production cost of the photovoltaic module are two major problems which restrict the development of the photovoltaic industry, so the development of the high-efficiency and high-reliability module is a constant theme of the photovoltaic development.
Photovoltaic module mainly comprises front apron, battery piece array, the encapsulation glued membrane, back apron, frame etc. usually, in the battery cluster formation process, the battery piece interconnection is cooled off in the twinkling of an eye when welding, sharp temperature variation can produce stress between battery piece and solder strip, therefore conventional photovoltaic module is equipped with certain piece interval usually in order to reduce the hidden risk of splitting of battery piece that causes by the stress release between battery piece and the solder strip, conventional photovoltaic module's piece interval generally is 2 ~ 3mm, this makes to have great blank region in the conventional photovoltaic module area, the light absorption area has been reduced, subassembly conversion efficiency is low, for this reason, we propose the half two-sided photovoltaic module of half piece of many main grids of high efficiency and solve above-mentioned problem.
Disclosure of Invention
The invention aims to solve the problems that a conventional photovoltaic module in the prior art has a large blank area and the light absorption area is reduced, and provides a high-efficiency multi-main-grid half-piece double-sided photovoltaic module.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a two-sided photovoltaic module of half piece of high-efficient many main grids, includes the aluminium frame, its structure from the top down is in proper order: antireflection coated glass, positive hot melt adhesive membrane, the battery piece, back hot melt adhesive membrane, transparent backplate, the aluminium frame cover is on photovoltaic module outside surface, the battery piece passes through the super soft solder strip and connects formation seamless welding battery cluster, battery cluster clearance is equipped with vertical reflective membrane, the vertical intermediate position of transparent backplate has a plurality of trompil, converge the area and be connected with the super soft solder strip who is connected the battery piece and make the battery piece form complete circuit return circuit, converge the area simultaneously and draw forth from the trompil of transparent backplate and be connected with the terminal box.
Preferably, the battery piece is a halved double-sided multi-main-grid square single crystal battery piece, and the ultra-soft circular welding strip is welded with the multi-main-grid line of the battery piece through soldering tin.
Preferably, the ultra-soft welding strip is a circular welding strip and consists of a copper base material and a tin coating layer, the copper base material is oxygen-free copper with the purity of 99.99%, and the tin coating layer is a tin-lead alloy layer consisting of 60% of tin and 40% of lead in mass fraction.
Preferably, the width of the longitudinal reflective film is 1-4mm, and the longitudinal reflective film is arranged between the left and right adjacent battery strings.
Preferably, the lower extreme lateral wall of aluminium frame rotates and is connected with the bottom plate, support the upper end lateral wall fixedly connected with mount pad of board, the mount pad is hollow structure, the lower extreme inner wall fixedly connected with driving motor of mount pad, driving motor's output shaft fixedly connected with ball, the cover is equipped with the sliding block rather than matching on the ball, sliding connection has the bracing piece between the both sides inner wall of mount pad, the lower extreme lateral wall of bracing piece has been seted up and has been accomodate the groove, ball extends to and accomodates in the groove, the both sides lateral wall of sliding block is respectively in the both sides lateral wall fixed connection who accomodates the groove, the bracing piece runs through the upper end inner wall of mount pad, is located outside the mount pad the upper end lateral wall of bracing piece is equipped with the connecting rod, the connecting rod rotates with the lower extreme lateral.
Preferably, the upper end lateral wall fixedly connected with horizontal pole of bracing piece, two mounting grooves, two have been seted up to the upper end lateral wall of horizontal pole fixedly connected with slide bar between the both sides lateral wall of mounting groove, sliding connection has the sliding sleeve on the slide bar, the lateral wall of sliding sleeve passes through the lateral wall fixed connection of reset spring and mounting groove, the reset spring cover is located on the slide bar, the upper end lateral wall of sliding sleeve rotates and is connected with the swinging arms, the one end that the sliding sleeve was kept away from to the swinging arms rotates with the lateral wall of connecting rod to be connected, the lower extreme lateral wall of connecting rod passes through the upper end lateral wall fixed connection of.
Preferably, the equal fixedly connected with branch of both sides lateral wall of bracing piece, the one end that the bracing piece was kept away from to branch is rotated and is connected with the gyro wheel, the rolling groove that matches with the gyro wheel is all seted up to the both sides inner wall of mount pad.
Preferably, the upper end side wall of the ball screw is fixedly connected with a baffle, and the width of the baffle is greater than that of the sliding block.
Compared with the prior art, the invention has the beneficial effects that:
1. the seamless welded multi-main-grid half-piece double-sided photovoltaic module is realized by adopting the ultra-soft welding strip, the blank area in the module area is reduced, the packaging density of the module is improved, the light absorption area is increased, and the photovoltaic module has higher power and photoelectric conversion efficiency and high reliability;
2. the number of the main grid lines of the multi-main-grid battery piece is increased, so that the distance between the main grid lines is shortened, the transmission path of current on the thin grid lines is shortened, the influence of series resistance (Rs) on the output power of the assembly is reduced, meanwhile, the multi-main-grid battery piece has high tolerance on the hidden cracking and broken grid of the battery piece, and the reliability of the assembly is higher. The silver paste consumption of the multiple main grid lines is reduced, and the corresponding material cost is reduced;
3. due to the fact that the special base material processing technology of the ultra-soft welding strip has low yield strength, the cell spacing of the longitudinal cells in the cell string can be greatly reduced compared with the cell spacing design of a component using a conventional welding strip, seamless welding of the cells can be achieved, and the welding breakage rate and the hidden crack risk in cell interconnection are reduced. The use of the circular welding strip reduces the effective shielding area of the battery piece, increases the secondary absorption of incident light and improves the power of the assembly;
4. the longitudinal reflective film can refract the light irradiated to the cell string gap onto the cell through the antireflection coated glass layer, so that the light absorption amount of the cell is increased, and the optical gain of the photovoltaic module is improved;
5. adopt transparent backplate can reduce two-sided subassembly weight by 30% (compare two-sided two glasss), realize the lightweight of subassembly. Meanwhile, the transparent back plate solves the root problem of sodium ions (contained in back glass) on the back of the dual-glass assembly, the problem of assembly power attenuation caused by PID is avoided, and the reliability of the assembly is improved;
6. the rebound force of the return spring and the compression spring is utilized to buffer the collision, so that the aluminum frame and the assembly are protected, the structure is simple, and the practicability is high;
7. can make its can receive shining of sunshine high-efficiently through the angle of the quick convenient regulation aluminium frame of driving motor and subassembly.
Drawings
FIG. 1 is a schematic view of the seamless welded interconnection between two battery plates using ultra-soft solder strips in accordance with the present invention;
FIG. 2 is a schematic side view of a photovoltaic module;
FIG. 3 is a back view of a photovoltaic module;
FIG. 4 is a schematic view of a connection structure of an aluminum frame and a bottom plate;
FIG. 5 is a schematic view of the structure at A in FIG. 4;
fig. 6 is a schematic structural diagram at B in fig. 4.
In the figure: 1 antireflection coated glass, 2 front hot melt adhesive films, 3 battery pieces, 4 super-soft circular welding strips, 5 bus strips, 6 longitudinal reflective films, 7 back hot melt adhesive films, 8 transparent back plates, 9 junction boxes, 10 aluminum frames, 11 bottom plates, 12 mounting seats, 13 driving motors, 14 ball screws, 15 sliding blocks, 16 supporting rods, 17 connecting rods, 18 cross rods, 19 sliding rods, 20 sliding sleeves, 21 reset springs, 22 swinging rods, 23 compression springs, 24 supporting rods, 25 idler wheels and 26 baffle plates.
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.
Referring to fig. 1-6, a high-efficient two-sided photovoltaic module of half piece of many main grids, including aluminium frame 10, its structure from the top down is in proper order: the solar photovoltaic module comprises antireflection coated glass 1, a front hot-melt adhesive film 2, a battery piece 3, a back hot-melt adhesive film 7 and a transparent back plate 8, wherein an aluminum frame 10 is sleeved on the outer side surface of a photovoltaic module, the lower end side wall of the aluminum frame 10 is rotatably connected with a bottom plate 11, the upper end side wall of a supporting plate is fixedly connected with a mounting seat 12, the mounting seat 12 is of a hollow structure, the lower end inner wall of the mounting seat 12 is fixedly connected with a driving motor 13, an output shaft of the driving motor 13 is fixedly connected with a ball screw 14, the upper end side wall of the ball screw 14 is fixedly connected with a baffle 26, the width of the baffle 26 is larger than that of a sliding block 15, the sliding block 15 can be prevented from falling off the ball screw 14 through the limitation of the baffle 26, the safety of the device is ensured, the damage to the aluminum frame 10 and the, the side walls of the two sides of the supporting rod 16 are fixedly connected with supporting rods 24, one end of each supporting rod 24, far away from the supporting rod 16, is rotatably connected with a roller 25, the inner walls of the two sides of the mounting seat 12 are respectively provided with a rolling groove matched with the roller 25, and the supporting rod 16 and the sliding block 15 can not rotate together with the ball screw 14 but vertically lift under the meshing action by utilizing the limitation of the roller 25 and the rolling grooves;
the upper end side wall of the supporting rod 16 is fixedly connected with a cross rod 18, the upper end side wall of the cross rod 18 is provided with two mounting grooves, a slide rod 19 is fixedly connected between the two side walls of the two mounting grooves, a slide sleeve 20 is slidably connected on the slide rod 19, the side wall of the slide sleeve 20 is fixedly connected with the side walls of the mounting grooves through a return spring 21, the return spring 21 is sleeved on the slide rod 19 to prevent the return spring 21 from inclining and deforming, the upper end side wall of the slide sleeve 20 is rotatably connected with a swinging rod 22, one end of the swinging rod 22 far away from the slide sleeve 20 is rotatably connected with the side wall of the connecting rod 17, the lower end side wall of the connecting rod 17 is fixedly connected with the upper end side wall of the cross rod 18 through a compression spring 23, the compression spring 23 is utilized to not only play a supporting role for the connecting rod 17, but also play a good buffering, the side walls of the two sides of the sliding block 15 are respectively fixedly connected with the side walls of the two sides of the accommodating groove;
the supporting rod 16 penetrates through the inner wall of the upper end of the mounting seat 12, the connecting rod 17 is arranged on the side wall of the upper end of the supporting rod 16 outside the mounting seat 12, the connecting rod 17 is rotatably connected with the side wall of the lower end of the aluminum frame 10, so that the angle between the aluminum frame 10 and the component can be conveniently adjusted, the light energy can be smoothly and efficiently absorbed, the battery pieces 3 are connected through the ultra-soft welding strip to form a seamless welding battery string, the ultra-soft welding strip is a circular welding strip and consists of a copper base material and a tin-coated layer, the copper base material is oxygen-free copper with the purity of 99.99 percent, the tin-coated layer is a tin-lead alloy layer consisting of tin with the mass fraction of 60 percent and lead with the mass fraction of 40 percent, the battery pieces 3 are halved double-sided multi-main-grid square single crystal battery pieces 3, the ultra-soft circular welding strip 4 is welded with the multi-main grid lines of the battery pieces 3 through soldering tin, the transparent back plate 8 is provided with a plurality of holes in the middle in the longitudinal direction, the bus bar 5 is connected with the ultra-soft welding strip connected with the battery piece 3 to enable the battery piece 3 to form a complete circuit loop, and meanwhile, the bus bar 5 is led out from the holes of the transparent back plate 8 and connected with the junction box 9.
The invention adopts the ultra-soft welding belt to realize the seamless welding of the multi-main-grid half-piece double-sided photovoltaic module, reduces the blank area in the module area, improves the packaging density of the module, increases the light absorption area, has higher power and photoelectric conversion efficiency, has high reliability, shortens the distance between the main grid lines by increasing the number of the main grid lines of the multi-main-grid battery piece 3, shortens the transmission path of current on the fine grid lines, reduces the influence of series resistance (Rs) on the output power of the module, has high tolerance of the multi-main grid on the hidden crack and broken grid of the battery piece 3, and has higher reliability of the module. And the use amount of silver paste of the multiple main grid lines is reduced, the corresponding material cost is reduced, and the ultra-soft solder strip has lower yield strength due to the special substrate treatment process, so that the space between the longitudinal battery pieces 3 in the battery string can be greatly reduced compared with the space between the battery pieces 3 of the assembly using the conventional solder strip, the seamless welding of the battery pieces 3 can be realized, and the welding breakage rate and the hidden crack risk in the interconnection of the battery pieces 3 are reduced. The secondary absorption of incident light is increased when the area is effectively sheltered from to circular use of welding the area that reduces battery piece 3, promote subassembly power, vertical reflective membrane 6 can be through reducing reflection coated glass 1 layer refraction to battery piece 3 to the light that shines in battery cluster clearance, increase battery piece 3's the light absorption amount, improve photovoltaic module's optical gain, adopt transparent backplate 8 can reduce 30% (on the same side two-sided double-glass) with two-sided subassembly weight, realize the lightweight of subassembly. Meanwhile, the transparent back plate 8 solves the root problem of sodium ions (contained in back glass) on the back of the dual-glass assembly, the problem of assembly power attenuation caused by PID is avoided, and the reliability of the assembly is improved;
when the angle of the aluminum frame 10 and the component needs to be adjusted to more conveniently absorb sunlight, the driving motor 13 drives the ball screw 14 to rotate forward and backward, so that the sliding block 15 is meshed with the ball screw 14 under the restriction of the supporting rod 24 and the roller 25, so that the sliding block 15 slides up and down along the ball screw 14, and the supporting rod 16 can also slide up and down, so that the connecting rod 17 drives one end of the aluminum frame 10 to lift, so that the angle of the aluminum frame 10 and the component is adjusted, so that the aluminum frame can efficiently receive the irradiation of sunlight, in addition, when the aluminum frame 10 and the component are collided, the aluminum frame 10 presses the connecting rod 17, the connecting rod 17 presses the compression spring 23, so that the collision of the aluminum frame 10 is buffered, the aluminum frame 10 and the component are protected, meanwhile, the connecting rod 17 presses the swinging rod 22, and the swinging rod 22 drives the sliding sleeve 20 to slide along the sliding rod, the return spring 21 is compressed, and the rebound force of the return spring 21 is utilized to buffer the collision, so that the aluminum frame 10 and the components are protected, the structure is simple, and the practicability is high.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a two-sided photovoltaic module of half piece of high-efficient many main grids, includes aluminium frame (10), its structure from the top down is in proper order: antireflection coated glass (1), positive hot melt adhesive membrane (2), battery piece (3), back hot melt adhesive membrane (7), transparent backplate (8), aluminium frame (10) cover is on photovoltaic module outside surface, a serial communication port, battery piece (3) are through the super soft solder strip connection formation seamless welding battery cluster, the battery cluster clearance is equipped with vertical reflective membrane (6), transparent backplate (8) vertical intermediate position has a plurality of trompil, converge and take (5) and the super soft solder strip of being connected battery piece (3) to be connected and make battery piece (3) form complete circuit return circuit, converge simultaneously and take (5) to draw forth from the trompil of transparent backplate (8) and be connected with terminal box (9).
2. The efficient multi-main-grid half-piece double-sided photovoltaic module as claimed in claim 1, wherein the battery piece (3) is a half-cut double-sided multi-main-grid square single crystal battery piece (3), and the ultra-soft circular solder strip (4) is welded with the multi-main-grid line of the battery piece (3) through soldering tin.
3. The efficient multi-main-grid half-piece double-sided photovoltaic module as claimed in claim 1, wherein the ultra-soft solder strip is a circular solder strip composed of a copper substrate and a tin-coated layer, the copper substrate is oxygen-free copper with a purity of 99.99%, and the tin-coated layer is a tin-lead alloy layer composed of 60% by mass of tin and 40% by mass of lead.
4. A high efficiency multi-primary grid half-panel bi-facial photovoltaic module as claimed in claim 1 wherein said longitudinal reflective film (6) is 1-4mm wide and is placed between two adjacent strings.
5. The efficient multi-main-grid half-piece double-sided photovoltaic assembly as recited in claim 1, wherein the lower side wall of the aluminum frame (10) is rotatably connected with a bottom plate (11), the upper side wall of the abutting plate is fixedly connected with a mounting seat (12), the mounting seat (12) is of a hollow structure, the lower inner wall of the mounting seat (12) is fixedly connected with a driving motor (13), the output shaft of the driving motor (13) is fixedly connected with a ball screw (14), the ball screw (14) is sleeved with a sliding block (15) matched with the ball screw, a supporting rod (16) is slidably connected between the two inner walls of the mounting seat (12), the lower side wall of the supporting rod (16) is provided with an accommodating groove, the ball screw (14) extends into the accommodating groove, the two side walls of the sliding block (15) are respectively and fixedly connected with the two side walls of the accommodating groove, the upper end inner wall of mount pad (12) is run through in bracing piece (16), is located outside mount pad (12) the upper end lateral wall of bracing piece (16) is equipped with connecting rod (17), connecting rod (17) rotate with the lower extreme lateral wall of aluminium frame (10) and are connected.
6. A high efficiency multi-primary grid half-panel bi-facial photovoltaic module as claimed in claim 5, the side wall of the upper end of the supporting rod (16) is fixedly connected with a cross rod (18), the side wall of the upper end of the cross rod (18) is provided with two mounting grooves, a sliding rod (19) is fixedly connected between the side walls of the two sides of the two mounting grooves, the sliding rod (19) is connected with a sliding sleeve (20) in a sliding way, the side wall of the sliding sleeve (20) is fixedly connected with the side wall of the mounting groove through a return spring (21), the reset spring (21) is sleeved on the sliding rod (19), the side wall of the upper end of the sliding sleeve (20) is rotatably connected with a swinging rod (22), one end of the swinging rod (22) far away from the sliding sleeve (20) is rotationally connected with the side wall of the connecting rod (17), the side wall of the lower end of the connecting rod (17) is fixedly connected with the side wall of the upper end of the cross rod (18) through a compression spring (23).
7. The efficient multi-main-grid half-piece double-sided photovoltaic module as claimed in claim 5, wherein the supporting rods (24) are fixedly connected to the side walls of the two sides of the supporting rod (16), the roller (25) is rotatably connected to one end of each supporting rod (24) far away from the supporting rod (16), and the inner walls of the two sides of the mounting seat (12) are provided with rolling grooves matched with the roller (25).
8. A high-efficiency multi-main grid half double-sided photovoltaic module as claimed in claim 5, wherein a baffle (26) is fixedly connected to the upper end side wall of the ball screw (14), and the width of the baffle (26) is larger than that of the sliding block (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911006799.4A CN111490106A (en) | 2019-10-22 | 2019-10-22 | High-efficient two-sided photovoltaic module of half piece of many main grids |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911006799.4A CN111490106A (en) | 2019-10-22 | 2019-10-22 | High-efficient two-sided photovoltaic module of half piece of many main grids |
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| Publication Number | Publication Date |
|---|---|
| CN111490106A true CN111490106A (en) | 2020-08-04 |
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| CN201911006799.4A Pending CN111490106A (en) | 2019-10-22 | 2019-10-22 | High-efficient two-sided photovoltaic module of half piece of many main grids |
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| CN (1) | CN111490106A (en) |
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| CN112531060A (en) * | 2020-11-20 | 2021-03-19 | 浙江爱旭太阳能科技有限公司 | Crystal silicon photovoltaic module with low irradiation performance |
| CN113659031A (en) * | 2021-07-01 | 2021-11-16 | 合肥晶澳太阳能科技有限公司 | Solar cell string, photovoltaic module and preparation method thereof |
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