CN114899274A - Batch series processing technology for photovoltaic module thin sheet battery pieces - Google Patents
Batch series processing technology for photovoltaic module thin sheet battery pieces Download PDFInfo
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- CN114899274A CN114899274A CN202210385656.4A CN202210385656A CN114899274A CN 114899274 A CN114899274 A CN 114899274A CN 202210385656 A CN202210385656 A CN 202210385656A CN 114899274 A CN114899274 A CN 114899274A
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- 238000012545 processing Methods 0.000 title claims abstract description 41
- 238000005516 engineering process Methods 0.000 title claims abstract description 32
- 239000003292 glue Substances 0.000 claims abstract description 126
- 239000004020 conductor Substances 0.000 claims abstract description 60
- 239000002390 adhesive tape Substances 0.000 claims abstract description 50
- 239000011248 coating agent Substances 0.000 claims abstract description 37
- 238000000576 coating method Methods 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000008569 process Effects 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims description 28
- 230000007246 mechanism Effects 0.000 claims description 26
- 230000001070 adhesive effect Effects 0.000 claims description 18
- 239000000853 adhesive Substances 0.000 claims description 17
- 230000009467 reduction Effects 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 9
- 238000004026 adhesive bonding Methods 0.000 claims description 8
- 238000011068 loading method Methods 0.000 claims description 8
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 10
- 238000001723 curing Methods 0.000 abstract description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 3
- 238000003848 UV Light-Curing Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 229910052709 silver Inorganic materials 0.000 abstract description 3
- 239000004332 silver Substances 0.000 abstract description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
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- 238000007792 addition Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction 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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
-
- 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
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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
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
- H01L31/188—Apparatus specially adapted for automatic interconnection of solar cells in a module
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a batch series processing technology of photovoltaic module thin sheet cells, and relates to the technical field of photovoltaic module processing. The method is used for solving the technical problems that batch series processing of low-temperature battery pieces cannot be met and the series processing efficiency and the battery piece efficiency need to be improved, and comprises the steps of battery piece feeding, conductor positioning, UV glue coating or tape pasting, UV glue curing, battery piece feeding and battery piece series connection, wherein the procedures of conductor positioning and UV glue coating or tape pasting can be interchanged; the conductors and the battery pieces are adhered by adopting UV curing or adhesive tapes, so that the collection and the transmission of current are realized, the cost is low, and a high-temperature welding process is avoided; the main grid of the cell is obviously reduced or even cancelled, the silver paste content is obviously reduced, and the cost is reduced; the increase of conductor quantity has reduced current transport distance, does benefit to the conductor and collects the current, improves battery piece efficiency, increases the generated energy.
Description
Technical Field
The invention relates to the technical field of photovoltaic module processing, in particular to a batch series processing technology of photovoltaic module sheet battery pieces.
Background
With the gradual deepening of carbon peak reaching and carbon neutralization in China, the photovoltaic market is larger and larger, the development, efficiency and power promotion of photovoltaic module products are more and more concerned and favored by various main bodies, and various new technologies and new products are in endless emergence. The photovoltaic cell silicon wafer is gradually changed from the initial polycrystalline silicon market to the field single crystal market, and is then gradually converted into the N-type single crystal. The size of the photovoltaic silicon slice is from 125mm (5inch) to 156mm (6inch), the current development is 182mm, the subsequent development is gradually carried out to silicon slices with larger sizes of 210mm, 213mm and the like, the efficiency of the cell is also from 17% more than 10 years ago to 23% at present, the cell efficiency is improved year by year, and the single power is also improved. Photovoltaic module technology has evolved from the first 2 primary grids, 3 primary grids, to 5 primary grids, to the present 9 primary grids, and even MBB multi-primary grids. Due to the change of the main grid, the initial manual welding is brought, and the automatic welding of the equipment is gradually replaced. The welding strip for collecting and guiding the current of the battery piece is also developed into a circular welding strip from an initial flat welding strip. In a word, the industry wants to reduce cost and increase efficiency by all methods, and the photovoltaic becomes a competitive power generation technology.
Although the photovoltaic technology is developed rapidly, the serial connection technology of the module-end special battery piece is still unchanged, and is still a heating welding process, so that the interconnection and the serial connection of the novel low-temperature battery piece cannot be met, and particularly, along with the trend of silicon slice thinning, the thickness is further reduced to 130um, 100um and below from 300um at the earliest to 160um at the current mainstream. Since the heat welding cannot be adopted for the laminated battery plate, the chip rate is high, the yield is low, and the cost is increased, the tandem process technology meeting the laminating trend must be developed. One of the current solutions is to adopt a conductive adhesive bonding mode, but because the conductive adhesive is high in cost, process conditions are still under development, weather resistance and stability are still in evaluation, a mainstream technology is not formed, and the terminal goal of cost reduction and efficiency improvement is not met. Therefore, the batch series processing technology suitable for the photovoltaic module sheet cell in the prior art has the following technical problems: the batch series processing of the low-temperature battery pieces cannot be met, and the series processing efficiency and the battery piece efficiency need to be improved.
A solution is now proposed to address the technical drawback in this respect.
Disclosure of Invention
The invention aims to provide a batch series processing technology of photovoltaic module sheet cells, which is used for solving the technical problems that the batch series processing of low-temperature cells cannot be met and the series processing efficiency and the cell efficiency need to be improved in the prior art.
The purpose of the invention can be realized by the following technical scheme:
the batch series processing technology of the photovoltaic module thin sheet cell comprises the following steps:
s1, battery piece feeding: loading a battery piece with a plurality of parallel auxiliary grids; the cell slice is a slice cell slice for a photovoltaic module;
s2, conductor positioning: laying a plurality of conductors with a drainage function on the surface of the battery piece;
s3, coating UV glue or sticking adhesive tape: spraying UV glue or adhesive tapes on the end, tail, middle or any other part of each conductor, and at least ensuring that at least one fixed point is adhered to each conductor and the UV glue or the adhesive tapes;
s4, UV glue curing: curing the UV adhesive to obtain a UV adhesive layer, so that the conductor is fixedly connected with the battery piece, and the conductor in the non-adhered area is in physical contact with the auxiliary grid to form a conduction area;
s5, feeding the battery piece: loading another cell piece with a plurality of parallel auxiliary grids;
s6, connecting the battery pieces in series: and repeating the steps S1-S5, so that the tail ends and the tail ends of the adjacent battery pieces are pasted through UV glue or adhesive tapes, and the batch series connection processing of the battery pieces is completed.
Furthermore, the number of the conductors is not less than five, the laying positions of the conductors are crossed with the auxiliary grids, and the crossing angle is 90 degrees.
Further, the sprayed UV glue or the pasted adhesive tape is parallel to the auxiliary grid but not contacted with the auxiliary grid; the number of the points of the UV glue spraying or the number of the adhesive tapes is the same as or integral multiple of the number of the conductors.
Further, the peeling force of the contact position of the UV adhesive layer and the conductor is more than 1.5N; carrying out irradiation curing on the UV adhesive, wherein the irradiation distance is less than 10mm, and the irradiation dose is 100-1500 mJ/cm 2 。
Further, the steps of feeding the battery pieces, coating UV glue or sticking adhesive tapes and connecting the battery pieces in series are all completed through glue dispensing and sticking equipment; the glue dispensing and pasting equipment comprises a rack and a typesetting table, wherein the typesetting table is arranged in the rack, one end of the typesetting table is provided with a feed inlet, the other end of the typesetting table is provided with a discharge outlet, and the rack is provided with an adjustable glue coating mechanism and an adjustable adhesive tape pasting mechanism.
Further, the typesetting table comprises a moving table and a placing table, and a chain transmission mechanism is arranged below the moving table; the chain transmission mechanism comprises an annular chain, a driving chain wheel and a driven chain wheel, the driving chain wheel and the driven chain wheel are arranged in parallel relatively, the annular chain is meshed around the peripheries of the driving chain wheel and the driven chain wheel, the mobile station is fixed above the annular chain, the axis of the driving chain wheel is connected with a first driving motor for driving the driving chain wheel to rotate, and guard plates which are not in contact with the annular chain are arranged on two sides and below the annular chain; the top symmetry of mobile station is equipped with two slide rails parallel with the driving sprocket axial, places the platform and slides and set up on the slide rail, places the center of platform and runs through and be equipped with the screw rod seat parallel with the slide rail, and the inner peripheral threaded connection of screw rod seat has the rotation screw rod, and the one end of rotating the screw rod is connected with its pivoted second driving motor of drive.
Furthermore, the adjustable glue coating mechanism comprises a first speed reducing motor, a first ball screw and a glue coating seat, the first speed reducing motor is arranged outside one side of the rack, the first ball screw horizontally penetrates through two sides of the rack and is connected with the first speed reducing motor, a plurality of first screw seats are in threaded connection with the periphery of the first ball screw, the glue coating seat is fixed on the outer side of the first screw seats through bolts, a buffer column is arranged at the bottom of the glue coating seat, and a glue outlet head is arranged at the bottom of the buffer column; the top of the gluing seat is communicated with the glue filling cylinder through a glue inlet pipe, a glue inlet cavity is formed in the inner cavity of the gluing seat, a plurality of arc-shaped buffer bags are arranged on the inner wall of the glue inlet cavity, the inner cavity of the buffer column is communicated with the glue inlet cavity, and the inner diameter of the buffer column is smaller than that of the glue inlet cavity.
Furthermore, a rotating shaft penetrates through the bottom of the glue inlet cavity, the glue outlet head is fixed with the periphery of the bottom of the rotating shaft, a compact through hole is formed in the top of the glue outlet head, and one end of the rotating shaft is connected with a micro motor for driving the rotating shaft to rotate; and a sealing ring is arranged at the contact part of the bottom of the inner cavity of the buffer column and the glue outlet head.
Furthermore, adjustable tape-stripping mechanism includes second gear motor, second ball and second lead screw seat, and it is outside that one side of frame is located to second gear motor, and the both sides that the frame was run through to the second ball level just are connected with second gear motor, and second ball and first ball dislocation set, a plurality of second lead screw seats of peripheral threaded connection of second ball, and the outside of second lead screw seat is fixed with telescopic cylinder, and telescopic cylinder's bottom is fixed with pastes the seat.
Furthermore, a winding shaft, an active winding seat and a pasting column are sequentially arranged on the periphery of one side of the pasting seat from top to bottom, an adhesive tape is wound on the winding shaft, and the adhesive tape is wound on the periphery of the active winding seat downwards and then extends to the outer side of the pasting column; one end of the winding shaft penetrates into the inner cavity of the pasting seat, a driving gear is fixed on the periphery of the end part positioned in the pasting seat, a driven gear is meshed below the driving gear, and the axis of the driven gear is connected with a balance shaft which is rotatably connected with two sides of the inner cavity of the pasting seat; the axis of the active winding seat is connected with a driving motor positioned in the inner cavity of the pasting seat through a connecting shaft, and the pasting column is fixedly connected with the pasting seat through a fixing column.
The invention has the following beneficial effects:
1. according to the batch series processing technology, the conductors and the battery pieces are adhered by adopting UV curing or adhesive tapes, so that the collection and the transmission of current are realized, the cost is low, the high-temperature welding technology is avoided, the process is suitable for the trend of battery piece flaking, the batch series processing technology of low-temperature battery pieces is met, and the process has good market popularization and production compatibility; the battery piece material loading, scribble UV glue or paste sticky tape, battery piece series connection step all accomplish through the point glue and paste equipment, have improved the series connection machining efficiency of battery piece greatly.
2. The batch series processing technology can obviously reduce or even cancel the main grids of the battery pieces, obviously reduce the content of silver paste and reduce the cost; the increase of conductor quantity has reduced current transport distance, does benefit to the conductor and collects the current, improves battery piece efficiency, increases the generated energy.
3. The placing table of the dispensing and pasting equipment drives the two shafts of the battery piece to be linked, so that subsequent dispensing and adhesive tape pasting operations are facilitated; the adjustable glue coating mechanism realizes the position change of the glue coating seat and the spraying angle adjustment of the glue outlet head, so that the UV glue is sprayed onto the battery piece from the glue outlet head after passing through the inner cavity of the glue coating seat and the inner cavity of the buffer column; a driving motor in a pasting seat in the adjustable tape pasting mechanism drives a driving winding seat to rotate through a connecting shaft, so that the adhesive tape is wound and released from the winding shaft, and the adhesive tape on the pasting column is pasted on the battery piece; the stable of winding shaft is kept receiving and releasing to gear engagement transmission's mode, avoids the too fast sticky tape fracture or unordered scattering that leads to of driving motor rotational speed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a batch tandem processing process of photovoltaic module sheet cells according to example 1 of the present invention;
FIG. 2 is a flow chart of a batch tandem processing process of photovoltaic module sheet cells according to example 2 of the present invention;
FIG. 3 is a schematic view of the conductor of the present invention positioned behind the cell;
FIG. 4 is a schematic view of the conductor of the present invention after UV glue is sprayed thereon;
FIG. 5 is a schematic view of the conductor of the present invention after being taped;
FIG. 6 is a schematic diagram of the battery plate after UV glue spraying;
FIG. 7 is a schematic view of a battery piece of the present invention after being taped;
FIG. 8 is a schematic diagram of the cells of the present invention after they are connected in series;
fig. 9 is a schematic structural view of a dispensing and pasting apparatus in embodiment 3 of the present invention;
FIG. 10 is an enlarged view of a portion of FIG. 9 at A;
FIG. 11 is an enlarged view of a portion of FIG. 9 at B;
FIG. 12 is a schematic view of the pasting base of the present invention with the outer case removed;
FIG. 13 is a schematic view of a matching structure of the first screw seat, the glue applying seat, the buffer column and the glue discharging head according to the present invention;
FIG. 14 is a cross-sectional view of the applicator, the cushion post and the dispensing head of the present invention.
Reference numerals: 1. a frame; 2. a typesetting table; 4. an adjustable glue coating mechanism; 6. an adjustable tape adhering mechanism; 21. a feed inlet; 22. a discharge port; 23. a mobile station; 24. a placing table; 25. an endless chain; 26. a drive sprocket; 27. a driven sprocket; 28. a first drive motor; 29. a guard plate; 30. a slide rail; 31. a screw seat; 32. a second drive motor; 41. a first reduction motor; 42. a first ball screw; 43. gluing seats; 44. a buffer column; 45. discharging the rubber head; 46. feeding a rubber tube; 47. filling a rubber cylinder; 48. a glue inlet cavity; 49. a buffer bag; 50. a rotating shaft; 51. a micro motor; 52. a seal ring; 53. a first lead screw base; 54. a bolt; 61. a second reduction motor; 62. a second ball screw; 63. a second lead screw base; 64. a telescopic cylinder; 65. a pasting seat; 66. a winding shaft; 67. an active winding seat; 68. sticking the column; 69. a driving gear; 70. a driven gear; 71. a balance shaft; 72. a connecting shaft; 73. a drive motor; 74. fixing a column; 100. a battery piece; 101. a secondary grid; 110. a conductor; 120. a UV adhesive layer; 130. an adhesive tape; 140. a conducting region.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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.
Example 1
As shown in fig. 1 and fig. 3 to 8, the present embodiment provides a batch tandem processing process for photovoltaic module thin sheet cells, which includes the following steps:
s1, battery piece feeding: loading a battery piece 100 with a plurality of parallel auxiliary grids 101; the cell 100 is a sheet cell for a photovoltaic module;
s2, conductor positioning: laying a plurality of conductors 110 with a drainage function on the surface of the battery piece 100; the number of the conductors 110 is not less than five, and the laying positions of the conductors 110 are crossed with the auxiliary grid 101, and the crossing angle is 90 degrees.
S3, coating UV glue or sticking adhesive tape: spraying UV glue or adhesive tapes 130 at the end, tail, middle or any other part of each conductor 110, and at least ensuring that at least one fixed point is adhered between each conductor 110 and the UV glue or adhesive tapes 130; wherein, the UV glue or the adhesive tape 130 is selected from conductive or insulating, has no special requirement on color, and is transparent; the adhesive tape 130 is a high-temperature resistant adhesive tape with high adhesive property; each row of sprayed UV glue or adhered tape 130 is parallel to the secondary grid 101 but not in contact with the secondary grid 101; the number of the dots of the UV paste or the number of the adhesive tapes 130 is the same as the number of the conductors 110 or an integral multiple of the number of the conductors 110; for example, when the number of the conductors 110 is eight, the number of the UV paste spraying points is twenty-four, and the number of the adhesive tapes 130 is eight.
S4, curing the UV adhesive: curing the UV adhesive to obtain a UV adhesive layer 120, so that the conductor 110 is fixedly connected with the cell 100, and the conductor 110 in the non-adhered area is in physical contact with the auxiliary grid 101 to form a conduction area 140; wherein, the peeling force of the contact position of the UV adhesive layer 120 and the conductor 110 is more than 1.5N; carrying out irradiation curing on the UV adhesive, wherein the irradiation distance is less than 10mm, and the irradiation dose is 100-1500 mJ/cm 2 ；
S5, feeding a lower battery piece: loading another battery piece 100 with a plurality of parallel auxiliary grids 101;
s6, connecting the battery pieces in series: and repeating the steps S1-S5, so that the tail ends and the tail ends of the adjacent battery pieces 100 are pasted through UV glue or adhesive tapes, and the batch series connection processing of the battery pieces is completed. The steps of feeding the battery pieces, coating UV glue or sticking adhesive tapes and connecting the battery pieces in series are all completed by the glue dispensing and sticking equipment in the embodiment 3.
The batch series processing technology of the photovoltaic module slice cell piece comprises the steps of cell piece feeding, conductor positioning, UV glue coating or tape pasting, UV glue curing, cell piece feeding and cell piece serial connection, wherein the processes of the conductor positioning and the UV glue coating or tape pasting can be interchanged, the conductor 110 is pasted with the cell piece 100 by adopting the UV curing or the tape 130, the collection and the transmission of current are realized, the cost is low, the high-temperature welding technology is avoided, the batch series processing technology is suitable for the cell piece flaking trend, the series processing technology of low-temperature cell pieces is met, and the batch series processing technology has good market popularization performance and production compatibility.
The battery piece material loading, scribble UV glue or paste sticky tape, battery piece series connection step all accomplish through the point glue and paste equipment, have improved the series connection machining efficiency of battery piece greatly. By adopting the batch series processing technology, the main grids of the battery pieces can be obviously reduced or even cancelled, the silver paste content is obviously reduced, and the cost is reduced; the increase of conductor quantity has reduced current transport distance, does benefit to the conductor and collects the current, improves battery piece efficiency, increases the generated energy.
Example 2
As shown in fig. 2 and fig. 3 to 8, this embodiment provides another batch tandem processing technology for photovoltaic module thin sheet battery pieces, which is different from embodiment 1 in that step S2 is to apply UV glue or tape: spraying UV glue or adhesive tapes on the end, tail, middle part or any other position of each conductor 110, and at least ensuring that at least one fixed point is adhered between each conductor 110 and the UV glue or adhesive tapes; the number of the points sprayed with the UV adhesive or the number of the adhesive tapes is the same as the number of the conductors 110 or is integral multiple of the number of the conductors 110; each row of sprayed UV glue or pasted adhesive tape is parallel to the secondary grid 101 but not in contact with the secondary grid 101; wherein the UV glue or tape is selected from conductive or insulating; step S3 is conductor positioning: a plurality of conductors 110 having a current guiding function are laid on the surface of the battery sheet 100.
Example 3
As shown in fig. 8 to 9, the present embodiment provides a dispensing and pasting apparatus, which is used for batch serial connection processing of photovoltaic module thin-sheet cells, and has functions of loading the cells, coating UV glue or sticking adhesive tape, and connecting the cells in series. The glue dispensing and pasting equipment comprises a rack 1 and a typesetting table 2, wherein the typesetting table 2 is arranged inside the rack 1, one end of the typesetting table 2 is provided with a feeding hole 21, the other end of the typesetting table 2 is provided with a discharging hole 22, and the rack 1 is provided with an adjustable glue coating mechanism 4 and an adjustable adhesive tape pasting mechanism 6.
Specifically, the typesetting table 2 comprises a moving table 23 and a placing table 24, and a chain transmission mechanism is arranged below the moving table 23; the chain transmission mechanism comprises an annular chain 25, a driving chain wheel 26 and a driven chain wheel 27, the driving chain wheel 26 and the driven chain wheel 27 are arranged in parallel relatively, the annular chain 25 is meshed around the peripheries of the driving chain wheel 26 and the driven chain wheel 27, the mobile station 23 is fixed above the annular chain 25, the axle center of the driving chain wheel 26 is connected with a first driving motor 28 for driving the driving chain wheel to rotate, and guard plates 29 which are not in contact with the annular chain 25 are arranged on the two sides and the lower part of the annular chain 25. The top of the moving platform 23 is symmetrically provided with two sliding rails 30 which are parallel to the axial direction of the driving sprocket 26, the placing platform 24 is arranged on the sliding rails 30 in a sliding manner, the center of the placing platform 24 is provided with a screw seat 31 which is parallel to the sliding rails 30 in a penetrating manner, the inner periphery of the screw seat 31 is connected with a rotating screw in a threaded manner, and one end of the rotating screw is connected with a second driving motor 32 which drives the rotating screw to rotate.
When the typesetting platform 2 works, the positive and negative rotation of the first driving motor 28 drives the driving sprocket 26 to rotate, and the driving sprocket 26 drives the driven sprocket 27 and the annular chain 25 to rotate, so that the annular chain 25 can drive the movable platform 23 to transversely move in the region of the frame 1; meanwhile, the second driving motor 32 drives the rotating screw to rotate, and the rotating screw drives the screw seat 31 and the placing table 24 to slide along the direction parallel to the slide rail 30; after the battery piece 100 is added from the feeding hole 21, the battery piece 100 is placed on the placing table 24, the placing table 24 drives the battery piece 100 to be in two-axis linkage, and subsequent dispensing and adhesive tape pasting operations are facilitated.
As shown in fig. 9-10 and 13-14, the adjustable glue coating mechanism 4 includes a first speed reduction motor 41, a first ball screw 42 and a glue coating seat 43, the first speed reduction motor 41 is disposed outside one side of the rack 1, the first ball screw 42 horizontally penetrates through two sides of the rack 1 and is connected with the first speed reduction motor 41, a plurality of first screw seats 53 are connected to the periphery of the first ball screw 42 in a threaded manner, the glue coating seat 43 is fixed to the outer side of the first screw seats 53 through bolts 54, a buffer column 44 is arranged at the bottom of the glue coating seat 43, and a glue outlet head 45 is arranged at the bottom of the buffer column 44. The top of the gluing base 43 is communicated with a glue filling cylinder 47 through a glue inlet pipe 46, a glue inlet cavity 48 is arranged in the inner cavity of the gluing base 43, a plurality of arc-shaped buffer bags 49 are arranged on the inner wall of the glue inlet cavity 48, the inner cavity of the buffer column 44 is communicated with the glue inlet cavity 48, and the inner diameter of the buffer column is smaller than that of the glue inlet cavity 48. The bottom of the glue inlet cavity 48 is provided with a rotating shaft 50 in a penetrating manner, the glue outlet head 45 is fixed with the periphery of the bottom of the rotating shaft 50, a compact through hole is formed in the top of the glue outlet head 45, and one end of the rotating shaft 50 is connected with a micro motor 51 for driving the rotating shaft 50 to rotate. The contact part of the bottom of the inner cavity of the buffer column 44 and the glue outlet head 45 is provided with a sealing ring 52.
In the adjustable glue coating mechanism 4, after the plurality of first screw seats 53 are adaptively assembled on the periphery of the first ball screw 42, the first speed reducing motor 41 is started, the first speed reducing motor 41 drives the first ball screw 42 to rotate, the rotary motion of the first ball screw 42 is converted into the linear motion of the first screw seat 53, and the first screw seat 53 drives the glue coating seat 43 to translate, so that the position change of the glue coating seat 43 is realized; after the glue filling cylinder 47 injects UV glue into the inner cavity of the glue coating base 43 through the glue inlet pipe 46, the UV glue is sprayed on the battery piece 100 from the glue outlet head 45 after passing through the inner cavity of the glue coating base 43 and the inner cavity of the buffer column 44. The good contractibility of the plurality of buffer bladders 49 relieves excessive instantaneous pressure after the UV glue enters; in the process that the micro motor 51 drives the rotating shaft 50 to rotate, the rotating shaft 50 drives the glue outlet head 45 to rotate, the glue dispensing angle of the glue outlet head 45 is adjusted, and UV glue in different positions and quantities can be conveniently dispensed on the battery piece 100.
As shown in fig. 9 and fig. 11-12, the adjustable tape-sticking mechanism 6 includes a second speed-reducing motor 61, a second ball screw 62 and a second screw seat 63, the second speed-reducing motor 61 is disposed outside one side of the rack 1, the second ball screw 62 horizontally penetrates through two sides of the rack 1 and is connected to the second speed-reducing motor 61, the second ball screw 62 and the first ball screw 42 are arranged in a staggered manner, a plurality of second screw seats 63 are connected to the periphery of the second ball screw 62 by threads, a telescopic cylinder 64 is fixed on the outer side of the second screw seat 63, and a sticking seat 65 is fixed on the bottom of the telescopic cylinder 64.
A winding shaft 66, an active winding seat 67 and an adhesive column 68 are sequentially arranged on the periphery of one side of the adhesive seat 65 from top to bottom, an adhesive tape 130 is wound on the winding shaft 66, and the adhesive tape 130 is wound on the periphery of the active winding seat 67 downwards and then extends to the outer side of the adhesive column 68; one end of the winding shaft 66 penetrates into the inner cavity of the pasting seat 65, a driving gear 69 is fixed on the periphery of the end part positioned in the pasting seat 65, a driven gear 70 is meshed below the driving gear 69, and the axis of the driven gear 70 is connected with a balance shaft 71 which is rotatably connected with two sides of the inner cavity of the pasting seat 65. The axis of the active winding seat 67 is connected with a driving motor 73 positioned in the inner cavity of the pasting seat 65 through a connecting shaft 72, and the pasting column 68 is fixedly connected with the pasting seat 65 through a fixing column 74.
When the adjustable tape pasting mechanism 6 works, after the plurality of second screw seats 63 are adaptively assembled on the periphery of the second ball screw 62, the second speed reducing motor 61 is started, the second speed reducing motor 61 drives the second ball screw 62 to rotate, the rotary motion of the second ball screw 62 is converted into the linear motion of the second screw seat 63, and the position change of the telescopic cylinder 64 and the pasting seat 65 is realized; when the placing table 24 drives the battery pieces 100 to be linked, the telescopic cylinder 64 drives the pasting seat 65 to move downwards so that the pasting column 68 approaches to the battery pieces 100, the driving motor 73 in the pasting seat 65 drives the driving winding seat 67 to rotate through the connecting shaft 72, so that the adhesive tape 130 is wound and unwound from the winding shaft 66, and the adhesive tape 130 on the pasting column 68 is pasted on the battery pieces 100; after the second reduction motor 61 is turned off, the application of the adhesive tape 130 is stopped. In the process of the rotary winding and unwinding of the winding shaft 66, the driving gear 69 is driven to rotate, the driving gear 69 drives the driven gear 70 and the balance shaft 71 which are meshed with the driving gear 69 to rotate, the winding shaft 66 is kept to be stably wound and unwound in a gear meshing transmission mode, and the situation that the adhesive tape 130 is broken or scattered disorderly due to the fact that the rotating speed of the driving motor 73 is too high is avoided.
As shown in fig. 1 and fig. 8 to 14, the working method of the dispensing and pasting device of the present embodiment includes the following steps:
firstly, feeding a battery piece 100 from a feeding hole 21, laying a plurality of conductors 110 at an angle vertical to a secondary grid 101 of the battery piece, wherein the laying positions of the conductors 110 are crossed with the secondary grid 101, and the crossing angle is 90 degrees;
secondly, the placing table 24 drives the battery piece 100 to be in two-axis linkage, and the UV glue passes through the inner cavity of the glue coating seat 43 of the adjustable glue coating mechanism 4 and the inner cavity of the buffer column 44 and then is sprayed on the battery piece 100 from the glue outlet head 45; or the adhesive tape 130 is adhered to the battery piece 100 by the adhesive column 68 of the adjustable tape adhering mechanism 6, so that at least one adhering fixing point between each conductor 110 and the UV adhesive or the adhesive tape 130 is ensured;
and step three, after the UV adhesive is subjected to ultraviolet curing, directly placing another battery piece 100 on the placing table 24 at a position close to the previous battery piece 100, laying a plurality of conductors 110, and repeating the step two to realize the series connection of the two battery pieces 100.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The batch series connection processing technology of the photovoltaic module thin cell slices is characterized by comprising the following steps:
s1, battery piece feeding: loading a battery piece (100) with a plurality of parallel auxiliary grids (101); the cell (100) is a thin cell for a photovoltaic module;
s2, positioning a conductor: laying a plurality of conductors (110) with a drainage function on the surface of the battery piece (100);
s3, coating UV glue or sticking adhesive tape: spraying UV glue or adhesive tapes (130) at the end, tail, middle or any other part of each conductor (110), and at least ensuring that at least one fixed point is adhered between each conductor (110) and the UV glue or adhesive tapes (130);
s4, UV glue curing: curing the UV glue to obtain a UV glue layer (120) so that the conductor (110) is fixedly connected with the cell (100), and the conductor (110) in the non-adhered area is in physical contact with the auxiliary grid (101) to form a conduction area (140);
s5, feeding the battery piece: feeding another battery piece (100) with a plurality of parallel auxiliary grids (101);
s6, connecting the battery pieces in series: and repeating the steps S1-S5, so that the tail ends and the tail ends of the adjacent battery pieces (100) are pasted through UV glue or adhesive tapes, and the batch series connection processing of the battery pieces is completed.
2. The process for the series-batch processing of photovoltaic module thin-sheet cells according to claim 1, characterized in that the number of the conductors (110) is not less than five, and the conductors (110) are laid at a position crossing the secondary grid (101) and at a crossing angle of 90 °.
3. The process for the series processing of photovoltaic module thin sheet cells according to claim 1, characterized in that the sprayed UV glue or the pasted adhesive tape (130) is parallel to the secondary grid (101) but not in contact with the secondary grid (101); the number of the UV glue spraying points or the number of the adhesive tapes (130) is the same as the number of the conductors (110) or is integral multiple of the number of the conductors (110).
4. The batch series processing technology for the photovoltaic module thin cell plates as claimed in claim 1, wherein the peeling force of the contact position of the UV adhesive layer (120) and the conductor (110) is more than 1.5N; carrying out irradiation curing on the UV adhesive, wherein the irradiation distance is less than 10mm, and the irradiation dose is 100-1500 mJ/cm 2 。
5. The batch series processing technology of the photovoltaic module thin sheet battery pieces as claimed in claim 1, wherein the battery piece feeding, UV glue coating or tape pasting and battery piece series connection steps are all completed through a glue dispensing and pasting device; the glue dispensing and pasting equipment comprises a rack (1) and a typesetting table (2), wherein the typesetting table (2) is arranged inside the rack (1), one end of the typesetting table (2) is provided with a feeding hole (21), the other end of the typesetting table is provided with a discharging hole (22), and the rack (1) is provided with an adjustable glue coating mechanism (4) and an adjustable adhesive tape pasting mechanism (6).
6. The batch series processing technology of photovoltaic module thin sheet battery pieces as claimed in claim 5, characterized in that the arrangement table (2) comprises a moving table (23) and a placing table (24), and a chain transmission mechanism is arranged below the moving table (23); the chain transmission mechanism comprises an annular chain (25), a driving chain wheel (26) and a driven chain wheel (27), the driving chain wheel (26) and the driven chain wheel (27) are arranged in parallel relatively, the annular chain (25) is meshed with the peripheries of the driving chain wheel (26) and the driven chain wheel (27) in a surrounding mode, the mobile station (23) is fixed above the annular chain (25), the axis of the driving chain wheel (26) is connected with a first driving motor (28) for driving the driving chain wheel to rotate, and guard plates (29) which are not in contact with the annular chain (25) are arranged on the two sides and below of the annular chain (25); the top symmetry of mobile station (23) is equipped with two slide rail (30) parallel with drive sprocket (26) axial, places platform (24) and slides and set up on slide rail (30), places the center of platform (24) and runs through screw rod seat (31) parallel with slide rail (30), and the interior circumference threaded connection of screw rod seat (31) has the rotation screw rod, and the one end of rotating the screw rod is connected with its pivoted second driving motor (32) of drive.
7. The batch series processing technology of the photovoltaic module sheet battery pieces as claimed in claim 5, wherein the adjustable glue coating mechanism (4) comprises a first speed reducing motor (41), a first ball screw (42) and a glue coating seat (43), the first speed reducing motor (41) is arranged outside one side of the rack (1), the first ball screw (42) horizontally penetrates through two sides of the rack (1) and is connected with the first speed reducing motor (41), the periphery of the first ball screw (42) is in threaded connection with a plurality of first screw seats (53), the glue coating seat (43) is fixed on the outer side of the first screw seat (53) through a bolt (54), a buffer column (44) is arranged at the bottom of the glue coating seat (43), and a glue outlet head (45) is arranged at the bottom of the buffer column (44); the top of the gluing seat (43) is communicated with a glue filling cylinder (47) through a glue inlet pipe (46), the inner cavity of the gluing seat (43) is provided with a glue inlet cavity (48), the inner wall of the glue inlet cavity (48) is provided with a plurality of arc-shaped buffer bags (49), the inner cavity of the buffer column (44) is communicated with the glue inlet cavity (48), and the inner diameter of the buffer column is smaller than the glue inlet cavity (48).
8. The batch series processing technology of the photovoltaic module sheet battery pieces as claimed in claim 7, wherein a rotating shaft (50) penetrates through the bottom of the glue inlet cavity (48), the glue outlet head (45) is fixed with the periphery of the bottom of the rotating shaft (50), a dense through hole is formed in the top of the glue outlet head (45), and one end of the rotating shaft (50) is connected with a micro motor (51) for driving the rotating shaft to rotate; a sealing ring (52) is arranged at the contact part of the bottom of the inner cavity of the buffer column (44) and the glue outlet head (45).
9. The batch series processing technology of the photovoltaic module sheet battery pieces as claimed in claim 5, wherein the adjustable tape pasting mechanism (6) comprises a second speed reduction motor (61), a second ball screw (62) and a second screw seat (63), the second speed reduction motor (61) is arranged outside one side of the rack (1), the second ball screw (62) horizontally penetrates through two sides of the rack (1) and is connected with the second speed reduction motor (61), the second ball screw (62) and the first ball screw (42) are arranged in a staggered mode, the periphery of the second ball screw (62) is in threaded connection with the second screw seats (63), a telescopic cylinder (64) is fixed on the outer side of the second screw seat (63), and a pasting seat (65) is fixed at the bottom of the telescopic cylinder (64).
10. The batch series processing technology of the photovoltaic module sheet cell slice is characterized in that a winding shaft (66), an active winding seat (67) and an adhesive column (68) are sequentially arranged on the periphery of one side of the adhesive seat (65) from top to bottom, an adhesive tape (130) is wound on the winding shaft (66), and the adhesive tape (130) is wound on the periphery of the active winding seat (67) downwards and then extends to the outer side of the adhesive column (68); one end of the winding shaft (66) penetrates into the inner cavity of the pasting seat (65), a driving gear (69) is fixed on the periphery of the end part positioned in the pasting seat (65), a driven gear (70) is meshed below the driving gear (69), and the axis of the driven gear (70) is connected with a balance shaft (71) which is rotatably connected with two sides of the inner cavity of the pasting seat (65); the axis of the active winding seat (67) is connected with a driving motor (73) positioned in the inner cavity of the pasting seat (65) through a connecting shaft (72), and the pasting column (68) is fixedly connected with the pasting seat (65) through a fixing column (74).
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| CN202210385656.4A CN114899274A (en) | 2022-04-13 | 2022-04-13 | Batch series processing technology for photovoltaic module thin sheet battery pieces |
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| CN202210385656.4A CN114899274A (en) | 2022-04-13 | 2022-04-13 | Batch series processing technology for photovoltaic module thin sheet battery pieces |
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