CN116159726A - Novel serial welding method for welding strip and battery piece - Google Patents
Novel serial welding method for welding strip and battery piece Download PDFInfo
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- CN116159726A CN116159726A CN202211239404.7A CN202211239404A CN116159726A CN 116159726 A CN116159726 A CN 116159726A CN 202211239404 A CN202211239404 A CN 202211239404A CN 116159726 A CN116159726 A CN 116159726A
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- Prior art keywords
- welding
- welding strip
- novel
- battery piece
- conductive adhesive
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- 238000003466 welding Methods 0.000 title claims abstract description 201
- 238000000034 method Methods 0.000 title claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 50
- 239000000853 adhesive Substances 0.000 claims abstract description 45
- 230000001070 adhesive effect Effects 0.000 claims abstract description 45
- 238000004040 coloring Methods 0.000 claims abstract description 30
- 239000003973 paint Substances 0.000 claims abstract description 28
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 238000000576 coating method Methods 0.000 claims abstract description 26
- 239000010410 layer Substances 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 14
- 238000004804 winding Methods 0.000 claims abstract description 12
- 239000012790 adhesive layer Substances 0.000 claims abstract description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical group OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 16
- 239000011347 resin Substances 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 13
- 239000010949 copper Substances 0.000 claims description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 12
- 230000003712 anti-aging effect Effects 0.000 claims description 12
- 239000007822 coupling agent Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 239000011812 mixed powder Substances 0.000 claims description 12
- 239000003960 organic solvent Substances 0.000 claims description 12
- 229920002635 polyurethane Polymers 0.000 claims description 12
- 239000004814 polyurethane Substances 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 12
- 239000010703 silicon Substances 0.000 claims description 12
- 239000003381 stabilizer Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 9
- 239000003086 colorant Substances 0.000 claims description 8
- 229910052709 silver Inorganic materials 0.000 claims description 8
- 239000004332 silver Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical group [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- OUBMGJOQLXMSNT-UHFFFAOYSA-N N-isopropyl-N'-phenyl-p-phenylenediamine Chemical group C1=CC(NC(C)C)=CC=C1NC1=CC=CC=C1 OUBMGJOQLXMSNT-UHFFFAOYSA-N 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 6
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- 238000009500 colour coating Methods 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 239000012948 isocyanate Substances 0.000 claims description 6
- 150000002513 isocyanates Chemical class 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 229920000570 polyether Polymers 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- 229910001128 Sn alloy Inorganic materials 0.000 claims description 5
- 239000002313 adhesive film Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 7
- 229910000679 solder Inorganic materials 0.000 description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 6
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- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 101100409194 Rattus norvegicus Ppargc1b gene Proteins 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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Images
Classifications
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- 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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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- 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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
- B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
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- 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
- B05D3/04—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 gases
- B05D3/0406—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 gases the gas being air
- B05D3/0413—Heating with air
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- 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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
- B23K1/0016—Brazing of electronic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
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-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2301/00—Inorganic additives or organic salts thereof
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- 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
- B05D2320/00—Organic additives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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- 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
- B05D2518/00—Other type of polymers
- B05D2518/10—Silicon-containing polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/02—Elements
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- C08K2003/085—Copper
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- C—CHEMISTRY; METALLURGY
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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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- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention relates to a novel serial welding method for welding a welding strip and a battery piece, which comprises the steps of selecting a die with matched size, installing the die at an outlet of a coating groove, and fixing a welding strip base material to be colored on a pay-off rack; drawing the welding strip base material to pass through a coating groove and an oven; uniformly coating a layer of conductive coloring paint when the welding strip base material passes through the die, drying in a baking oven, and winding on a winding disc to obtain a novel welding strip; the novel welding strip is arranged on a pay-off rack of a stringer table, and is pulled and passes through a material groove in which conductive adhesive is stored; when the novel welding strip is soaked in the conductive adhesive and led out of the conductive adhesive groove again, the adhesive smearing die arranged at the notch passively smears the redundant conductive adhesive on the welding strip and falls into the conductive adhesive groove, and the surface of the welding strip obtains a uniform conductive adhesive layer; after being pulled out by the traction chuck device, the novel welding belt is placed on a welding position of the battery piece, and the novel welding belt and the front side and the back side of the battery piece are welded in series by utilizing an infrared welding box. And the solar photovoltaic cell is effectively welded with grid lines on a solar photovoltaic cell, so that a good conductive function is realized.
Description
Technical Field
The invention relates to a novel serial welding method for a welding strip and a battery piece.
Background
Along with the development of distributed photovoltaic and BIPV, MBB components become mainstream, colored round wire welding strips applied to the MBB components still are difficult problems in the photovoltaic industry, the prior art mainly relies on the fact that films with different colors are attached to the surfaces of the welding strips to present different color requirements, the films belong to low-molecular polymers and react with adhesive films in extreme environments, the reliability of the components is affected, in addition, the existing round wire welding strips are only silvery white in the industry, serious restrictions exist on the design of the appearance color of the BIPV components, and a new research and development direction is provided for welding windows of the components.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a novel serial welding method for a welding strip and a battery piece.
The aim of the invention is achieved by the following technical scheme:
a novel serial welding method for a welding strip and a battery piece is characterized in that: comprises the following steps:
1) Selecting a die with matched size according to the thickness of the color coating and the thickness of the welding strip base material, installing the die at the outlet of the coating groove, and fixing the welding strip base material to be colored on a pay-off rack;
2) Drawing the welding strip base material to pass through a coating groove and an oven; when the welding strip base material passes through the die, a layer of conductive coloring paint is uniformly coated, and the conductive coloring paint comprises the following components: 80-100 parts of polyurethane modified organic silicon resin, 15-20 parts of carbon fiber, 20-30 parts of metal mixed powder, 3-5 parts of polyethylene glycol, 5-10 parts of coupling agent, 40-50 parts of organic solvent, 1-3 parts of anti-aging agent, 3-5 parts of high-temperature stabilizer and 5-10 parts of colorant; drying the welding strip with the conductive coloring coating attached to the surface in an oven, and winding the welding strip on a winding disc to obtain a novel welding strip;
3) The novel welding strip is arranged on a pay-off rack of a stringer table, and is pulled and passes through a material groove in which conductive adhesive is stored;
4) When the novel welding strip is soaked in the conductive adhesive and led out of the conductive adhesive groove again, the adhesive smearing die arranged at the notch passively smears the redundant conductive adhesive on the welding strip and falls into the conductive adhesive groove, and a layer of uniform conductive adhesive layer is obtained on the surface of the welding strip;
5) The novel welding strip with the surface uniformly coated with the conductive adhesive layer is pulled out by a traction chuck device and then placed on a welding position of the battery piece, and the novel welding strip is welded with the front side and the back side of the battery piece in series by utilizing an infrared welding box; the novel welding strip and the battery piece are welded in series.
Further, the novel welding strip and battery piece series welding method comprises the steps that the welding strip base material comprises round copper wires, copper-clad aluminum, copper-clad silver, aluminum-clad silver and a tin alloy coating coated on the surface of the welding strip base material.
Further, the novel serial welding method for the welding strip and the battery piece is characterized in that the polyurethane modified organic silicon resin is isocyanate terminated polyether oligomer.
Further, in the novel serial welding method for the welding strip and the battery piece, the metal mixed powder is a mixture of copper and nano silver-plated graphite powder, and the mass ratio is 1:0.05.
further, in the novel serial welding method for the welding strip and the battery piece, the coupling agent is a silane coupling agent, and the organic solvent is ethylene glycol ether.
Further, in the novel serial welding method for the welding strip and the battery piece, the anti-aging agent is N-phenyl-N' -isopropyl-p-phenylenediamine, and the high-temperature stabilizer is sulfonated phenolic resin.
Further, in the novel serial welding method for the welding strip and the battery piece, a heating pipe and a fan are arranged in the oven up and down, hot air is uniformly distributed in the oven, the welding strip is uniformly heated in the oven, the length of the oven is 5-50 m, the drying speed is controlled to be 3-50 m/min, and the drying temperature is set to be 25-300 ℃.
Further, in the novel serial welding method for the welding strip and the battery piece, the thickness of the conductive adhesive film is 1-30 microns.
Further, in the novel serial welding method for the welding strip and the battery piece, the temperature of infrared welding is 80-300 ℃.
Further, according to the novel welding strip and battery piece series welding method, the circular section and the flat section are connected through the transition zone, and the novel welding strip is continuously and circularly arranged.
Compared with the prior art, the invention has remarkable advantages and beneficial effects, and is specifically embodied in the following aspects:
(1) according to the welding method, a layer of conductive coloring paint is uniformly coated when the welding strip base material passes through the die, so that the welding strip base material can be effectively welded with the grid line on the solar photovoltaic cell, and a good conductive function is realized;
(2) the black circular welding strip is easy to realize on-line preparation, and is directly connected with the battery piece in series for welding;
(3) the novel welding method for the series connection of the welding strip and the battery piece effectively solves the problem that the series connection of the battery piece of the full black assembly is limited to the traditional silver welding strip, so that the welding method is not limited to the diversification of the appearance color design of the BIPV assembly, and the welding process window is wider.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1: schematic cross-section of the mold;
fig. 2: a schematic cross-section of a novel solder strip.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present invention, directional terms, order terms, etc. are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
As shown in fig. 2, in the novel solder strip, a tin alloy coating 102 is coated on the surface of a round copper wire 101, and a conductive coloring paint 103 is coated on the surface of the tin alloy coating 102 by a coloring method.
The novel series welding process steps of the welding strip and the battery piece are as follows:
1) Selecting a die 1 with matched size according to the thickness of the color coating and the thickness of the welding strip base material, and fixing the welding strip base material to be colored on a pay-off rack by installing the die 1 at the outlet of a coating groove as shown in figure 1;
2) Drawing the welding strip base material to pass through a coating groove and an oven; when the welding strip base material passes through the die, a layer of conductive coloring paint is uniformly coated, and the conductive coloring paint comprises the following components: 80-100 parts of polyurethane modified organic silicon resin, 15-20 parts of carbon fiber, 20-30 parts of metal mixed powder, 3-5 parts of polyethylene glycol, 5-10 parts of coupling agent, 40-50 parts of organic solvent, 1-3 parts of anti-aging agent, 3-5 parts of high-temperature stabilizer and 5-10 parts of colorant; wherein the polyurethane modified organic silicon resin is isocyanate terminated polyether oligomer; the metal mixed powder is a mixture of copper and nano silver-plated graphite powder, and the mass ratio is 1:0.05; the coupling agent is a silane coupling agent, the organic solvent is ethylene glycol ether, the anti-aging agent is N-phenyl-N' -isopropyl-p-phenylenediamine, and the high-temperature stabilizer is sulfonated phenolic resin;
the welding strip with the conductive coloring paint attached to the surface is dried in an oven and is wound in a winding disc on a winding machine, so that a novel welding strip is obtained;
wherein, heating pipes and fans are arranged up and down in the oven, hot air is uniformly distributed in the oven, the welding strip is uniformly heated in the oven, the length of the oven is 5-50 m, the drying speed is controlled to be 3-50 m/min, and the drying temperature is set to be 25-300 ℃;
3) The novel welding strip is arranged on a pay-off rack of a stringer table, and is pulled and passes through a material groove in which conductive adhesive is stored, wherein the conductive adhesive adopts copper conductive adhesive; the conductive adhesive is divided into silver conductive adhesive, gold conductive adhesive, copper conductive adhesive and carbon conductive adhesive according to different types of conductive particles in the conductive adhesive;
4) When the novel welding strips are soaked in the conductive adhesive and led out of the conductive adhesive groove again, the adhesive smearing die arranged at the notch passively smears the redundant conductive adhesive on each welding strip and falls into the conductive adhesive groove, and a layer of uniform conductive adhesive layer is obtained on the surface of each welding strip, wherein the thickness of the conductive adhesive film is 1-30 microns;
5) After the novel welding strip with the surface uniformly coated with the conductive adhesive layer is pulled out by a traction chuck device, the novel welding strip is placed on a welding position of a battery piece, the novel welding strip and the front and back surfaces of the battery piece are welded in series by utilizing an infrared welding box, and the infrared welding temperature is 80-300 ℃; the novel welding strip and the battery piece are welded in series.
Novel solder strip shapes are compatible and diversified, including but not limited to circular, rectangular, polygonal, etc.; the tin alloy coating comprises two or more mixtures of tin, lead, bismuth, indium and antimony; the novel welding strip coloring method is not limited to coloring the surface of the welding strip in different colors in a roller coating, spraying, silk screen printing and other modes; the color of the coloring layer is not limited to black, blue, light blue, etc.; the battery piece used for welding the novel welding strip is not limited to battery pieces such as a Perc battery, a HIT battery, a battery without a main grid and the like; the welding mode is not limited to conductive adhesive, electromagnetic welding, infrared welding, laser welding, hot blast welding, ultrasonic welding and the like.
Example 1
Selecting a die with matched size according to the thickness of the color coating and the thickness of the welding strip base material, installing the die at the outlet of the coating groove, and fixing the welding strip base material to be colored on a pay-off rack;
drawing the welding strip base material to pass through a coating groove and an oven; when the welding strip base material passes through the die, a layer of conductive coloring paint is uniformly coated, and the conductive coloring paint comprises the following components: 80 parts of polyurethane modified organic silicon resin, 15 parts of carbon fiber, 20 parts of metal mixed powder, 3 parts of polyethylene glycol, 5 parts of coupling agent, 40 parts of organic solvent, 2 parts of anti-aging agent, 3 parts of high-temperature stabilizer and 5 parts of colorant; wherein the polyurethane modified organic silicon resin is isocyanate terminated polyether oligomer; the metal mixed powder is a mixture of copper and nano silver-plated graphite powder, and the mass ratio is 1:0.05; the coupling agent is a silane coupling agent, the organic solvent is ethylene glycol ether, the anti-aging agent is N-phenyl-N' -isopropyl-p-phenylenediamine, and the high-temperature stabilizer is sulfonated phenolic resin;
the welding strip with the conductive coloring paint attached to the surface is dried in an oven and is wound in a winding disc on a winding machine, so that a novel welding strip is obtained;
wherein, heating pipes and fans are arranged up and down in the oven, hot air is uniformly distributed in the oven, the welding strip is uniformly heated in the oven, the length of the oven is 5-50 m, the drying speed is controlled to be 3-50 m/min, and the drying temperature is set to be 25-300 ℃;
the novel welding strip is arranged on a pay-off rack of a stringer table, and is pulled and passes through a material tank which is additionally arranged on the stringer and stores conductive adhesive, and the conductive adhesive adopts copper conductive adhesive;
when the novel welding strips are soaked in the conductive adhesive and led out of the conductive adhesive groove again, the adhesive smearing die arranged at the notch passively smears the redundant conductive adhesive on each welding strip and falls into the conductive adhesive groove, and a layer of uniform conductive adhesive layer is obtained on the surface of each welding strip, wherein the thickness of the conductive adhesive film is 1-30 microns;
after the novel welding strip with the surface uniformly coated with the conductive adhesive layer is pulled out by a traction chuck device, the novel welding strip is placed on a welding position of a battery piece, the novel welding strip and the front and back surfaces of the battery piece are welded in series by utilizing an infrared welding box, and the infrared welding temperature is 80-300 ℃; the novel welding strip and the battery piece are welded in series.
Example 2
Selecting a die with matched size according to the thickness of the color coating and the thickness of the welding strip base material, arranging the die at the outlet of a coating groove at the front end of a cutting opening of a stringer, and fixing the silver welding strip base material on a pay-off rack of the stringer;
manually and sequentially dragging the silver solder strip base material through a wire guide wheel, a coating groove, a die, an oven and a cutting station until the silver solder strip base material is pulled to a clamping position and clamped; the silver solder strip base material is coated with a layer of weldable conductive coloring paint when passing through the paint groove under the action of the traction force of the traction clamp, and the weldable conductive coloring paint comprises the following components: 80 parts of polyurethane modified organic silicon resin, 15 parts of carbon fiber, 20 parts of metal mixed powder, 3 parts of polyethylene glycol, 5 parts of coupling agent, 40 parts of organic solvent, 10 parts of resin curing agent, 2 parts of anti-aging agent, 3 parts of high-temperature stabilizer and 5 parts of colorant; wherein the polyurethane modified organic silicon resin is isocyanate terminated polyether oligomer; the metal mixed powder is a mixture of copper and nano silver-plated graphite powder, and the mass ratio is 1:0.05; the coupling agent is a silane coupling agent, the organic solvent is ethylene glycol ether, the resin curing agent is polyoxypropylene glycol, the anti-aging agent is N-phenyl-N' -isopropyl-p-phenylenediamine, and the high-temperature stabilizer is sulfonated phenolic resin;
after passing through the die, the redundant weldable conductive coloring paint flows into the paint groove by the die, and a layer of weldable conductive coloring paint is uniformly coated on the surface of the welding strip base material of the die, so that the novel welding strip is obtained.
The novel welding strip enters an oven with the temperature set to be 180-200 ℃ for drying and curing under the action of traction force, enters a cutting station of a series welding machine for cutting, and is pulled to a battery piece to finish series welding operation.
Example 3
Selecting a die with matched size according to the thickness of the color coating and the thickness of the welding strip base material, installing the die at the outlet of the coating groove, and fixing the welding strip base material to be colored on a pay-off rack;
drawing the welding strip base material to pass through a coating groove and an oven; when the welding strip base material passes through the die, a layer of weldable conductive coloring paint is uniformly coated, and the weldable conductive coloring paint comprises the following components: 80 parts of polyurethane modified organic silicon resin, 15 parts of carbon fiber, 20 parts of metal mixed powder, 3 parts of polyethylene glycol, 5 parts of coupling agent, 40 parts of organic solvent, 12 parts of resin curing agent, 2 parts of anti-aging agent, 3 parts of high-temperature stabilizer and 5 parts of colorant; wherein the polyurethane modified organic silicon resin is isocyanate terminated polyether oligomer; the metal mixed powder is a mixture of copper and nano silver-plated graphite powder, and the mass ratio is 1:0.05; the coupling agent is a silane coupling agent, the organic solvent is ethylene glycol ether, the resin curing agent is polyoxypropylene glycol, the anti-aging agent is N-phenyl-N' -isopropyl-p-phenylenediamine, and the high-temperature stabilizer is sulfonated phenolic resin;
the welding strip with the conductive coloring paint attached to the surface is dried in an oven and is wound in a winding disc on a winding machine, so that a novel welding strip is obtained;
wherein, heating pipes and fans are arranged up and down in the oven, hot air is uniformly distributed in the oven, the welding strip is uniformly heated in the oven, the length of the oven is 5 meters, the drying speed is controlled to be 3-10 m/min, and the drying temperature is set to be 25-180 ℃;
the novel welding strip is arranged on a pay-off rack of a stringer table and fixed, and then is manually pulled to pass through a wire guide wheel and a cutting station in sequence until the position of a traction clamp is reached and clamped. And then enters a cutting station of the stringer to be cut and then is pulled to the battery piece to finish the series welding action.
The three embodiments are mainly different in the matching of different conductive paint formulations and client processes.
The formula of the conductive coloring paint coated on the surface of the welding strip base material in embodiment 1 does not have the welding performance of directly welding the grid line of the battery piece, so that a material tank filled with conductive adhesive is required to be added before a cutting station on a stringer, so that the conductive adhesive is uniformly coated on the surface of the welding strip base material when the welding strip base material passes through the material tank, and the novel welding strip is convenient to weld with the battery piece.
Example 2 is optimized in two ways compared to example 1: on one hand, as the weldable conductive coloring paint is adopted, the complicated previous procedure is omitted; the novel welding strip can be prepared by arranging a coating groove and an oven station on a stringer of the existing client; on the other hand, the coating action of the conductive adhesive material and the conductive adhesive is omitted. As the weldable conductive coloring paint is adopted in the embodiment 2, the formula paint generates a curing effect at the ambient temperature of 80-300 ℃ in infrared welding, and has stronger bonding capability, thereby being welded and bonded with the battery grid line. The coating has conductivity and achieves a conducting effect with grid lines on the battery after welding.
In example 3, the surface of the solder ribbon base material was coated with the same formulation as in example 2, and no mechanism such as a material tank, a coating tank, and an oven was added to the client stringer. The method is the same as the method for using the common welding strip base material of the client, and the improvement equipment is not needed to be additionally arranged on the serial welding machine, so that the application of the method reduces the manufacturing cost of the client and improves the production efficiency.
In summary, according to the novel serial welding method for the welding strip and the battery piece, a layer of conductive coloring paint is uniformly coated when the welding strip base material passes through the die, so that the welding strip can be effectively welded with the grid line on the solar photovoltaic battery piece, and a good conductive function is realized; the black circular welding strip is easy to realize on-line preparation, and is directly connected with the battery piece in series for welding; the problem that the series connection of the battery pieces of the all-black assembly is limited to the traditional silver soldering strip is effectively solved, so that the BIPV assembly is not limited to the diversification of appearance color designs, and the welding process window is wider.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily appreciate variations or alternatives within the scope of the present invention.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A novel serial welding method for a welding strip and a battery piece is characterized by comprising the following steps of: comprises the following steps:
1) Selecting a die with matched size according to the thickness of the color coating and the thickness of the welding strip base material, installing the die at the outlet of the coating groove, and fixing the welding strip base material to be colored on a pay-off rack;
2) Drawing the welding strip base material to pass through a coating groove and an oven; when the welding strip base material passes through the die, a layer of conductive coloring paint is uniformly coated, and the conductive coloring paint comprises the following components: 80-100 parts of polyurethane modified organic silicon resin, 15-20 parts of carbon fiber, 20-30 parts of metal mixed powder, 3-5 parts of polyethylene glycol, 5-10 parts of coupling agent, 40-50 parts of organic solvent, 1-3 parts of anti-aging agent, 3-5 parts of high-temperature stabilizer and 5-10 parts of colorant; drying the welding strip with the conductive coloring coating attached to the surface in an oven, and winding the welding strip on a winding disc to obtain a novel welding strip;
3) The novel welding strip is arranged on a pay-off rack of a stringer table, and is pulled and passes through a material groove in which conductive adhesive is stored;
4) When the novel welding strip is soaked in the conductive adhesive and led out of the conductive adhesive groove again, the adhesive smearing die arranged at the notch passively smears the redundant conductive adhesive on the welding strip and falls into the conductive adhesive groove, and a layer of uniform conductive adhesive layer is obtained on the surface of the welding strip;
5) The novel welding strip with the surface uniformly coated with the conductive adhesive layer is pulled out by a traction chuck device and then placed on a welding position of the battery piece, and the novel welding strip is welded with the front side and the back side of the battery piece in series by utilizing an infrared welding box; the novel welding strip and the battery piece are welded in series.
2. The novel serial welding method for the welding strip and the battery piece, which is characterized in that: the welding strip base material comprises round copper wires, copper clad aluminum, copper clad silver and aluminum clad silver, and a layer of tin alloy coating coated on the surface of the welding strip base material.
3. The novel serial welding method for the welding strip and the battery piece, which is characterized in that: the polyurethane modified organic silicon resin is isocyanate terminated polyether oligomer.
4. The novel serial welding method for the welding strip and the battery piece, which is characterized in that: the metal mixed powder is a mixture of copper and nano silver-plated graphite powder, and the mass ratio is 1:0.05.
5. the novel serial welding method for the welding strip and the battery piece, which is characterized in that: the coupling agent is a silane coupling agent, and the organic solvent is ethylene glycol ether.
6. The novel serial welding method for the welding strip and the battery piece, which is characterized in that: the anti-aging agent is N-phenyl-N' -isopropyl-p-phenylenediamine, and the high-temperature stabilizer is sulfonated phenolic resin.
7. The novel serial welding method for the welding strip and the battery piece, which is characterized in that: heating pipes and fans are arranged up and down in the oven, hot air is uniformly distributed in the oven, the welding strip is uniformly heated in the oven, the length of the oven is 5-50 m, the drying speed is controlled to be 3-50 m/min, and the drying temperature is set to be 25-300 ℃.
8. The novel serial welding method for the welding strip and the battery piece, which is characterized in that: the thickness of the conductive adhesive film is 1-30 micrometers.
9. The novel serial welding method for the welding strip and the battery piece, which is characterized in that: the temperature of the infrared welding is 80-300 ℃.
10. The novel serial welding method for the welding strip and the battery piece, which is characterized in that: the novel welding strip has the structure that a circular section and a flat section are connected by a transition zone and are circularly arranged in a continuous period.
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Application publication date: 20230526 |