CN116207393B - New energy automobile water cooling plate and preparation method thereof - Google Patents
New energy automobile water cooling plate and preparation method thereof Download PDFInfo
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- CN116207393B CN116207393B CN202211567983.8A CN202211567983A CN116207393B CN 116207393 B CN116207393 B CN 116207393B CN 202211567983 A CN202211567983 A CN 202211567983A CN 116207393 B CN116207393 B CN 116207393B
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- water
- cooling
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- 238000001816 cooling Methods 0.000 title claims abstract description 164
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 71
- 230000007797 corrosion Effects 0.000 claims abstract description 64
- 238000005260 corrosion Methods 0.000 claims abstract description 64
- 238000000576 coating method Methods 0.000 claims abstract description 51
- 239000011248 coating agent Substances 0.000 claims abstract description 50
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 39
- 239000000110 cooling liquid Substances 0.000 claims abstract description 23
- 238000005507 spraying Methods 0.000 claims abstract description 20
- 238000007731 hot pressing Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims description 31
- 210000001503 joint Anatomy 0.000 claims description 20
- 239000002131 composite material Substances 0.000 claims description 19
- 238000001035 drying Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 19
- 239000006185 dispersion Substances 0.000 claims description 18
- 238000011049 filling Methods 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 18
- 238000000227 grinding Methods 0.000 claims description 17
- 238000003466 welding Methods 0.000 claims description 16
- 239000012074 organic phase Substances 0.000 claims description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 14
- 238000000137 annealing Methods 0.000 claims description 14
- 238000005520 cutting process Methods 0.000 claims description 14
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 238000010008 shearing Methods 0.000 claims description 13
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 claims description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 12
- -1 methylene dinaphthyl Chemical group 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 11
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 10
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- LCPUCXXYIYXLJY-UHFFFAOYSA-N 1,1,2,4,4,4-hexafluorobutyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC(F)(F)C(F)CC(F)(F)F LCPUCXXYIYXLJY-UHFFFAOYSA-N 0.000 claims description 8
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 8
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 8
- 239000005995 Aluminium silicate Substances 0.000 claims description 7
- 235000012211 aluminium silicate Nutrition 0.000 claims description 7
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 7
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 7
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 239000004408 titanium dioxide Substances 0.000 claims description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 6
- 235000021355 Stearic acid Nutrition 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- LQZZUXJYWNFBMV-UHFFFAOYSA-N ethyl butylhexanol Natural products CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims description 6
- 239000003999 initiator Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 6
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000002694 phosphate binding agent Substances 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 239000008117 stearic acid Substances 0.000 claims description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 6
- 239000011593 sulfur Substances 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- 239000011787 zinc oxide Substances 0.000 claims description 6
- WWQIFSMNDIWXJM-UHFFFAOYSA-K P(=O)([O-])([O-])[O-].[Na+].[Cr+3] Chemical compound P(=O)([O-])([O-])[O-].[Na+].[Cr+3] WWQIFSMNDIWXJM-UHFFFAOYSA-K 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- YQOPHINZLPWDTA-UHFFFAOYSA-H [Al+3].[Cr+3].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O Chemical compound [Al+3].[Cr+3].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O YQOPHINZLPWDTA-UHFFFAOYSA-H 0.000 claims description 5
- NXMRPJWKUHQMML-UHFFFAOYSA-K [Cr+3].P(=O)([O-])([O-])[O-].[Mg+2] Chemical compound [Cr+3].P(=O)([O-])([O-])[O-].[Mg+2] NXMRPJWKUHQMML-UHFFFAOYSA-K 0.000 claims description 5
- 238000000498 ball milling Methods 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 5
- 239000010431 corundum Substances 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 238000010790 dilution Methods 0.000 claims description 5
- 239000012895 dilution Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 238000007885 magnetic separation Methods 0.000 claims description 5
- 239000010452 phosphate Substances 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 5
- 239000002002 slurry Substances 0.000 claims description 5
- 230000002194 synthesizing effect Effects 0.000 claims description 5
- 238000009210 therapy by ultrasound Methods 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 238000005097 cold rolling Methods 0.000 claims description 3
- 238000005098 hot rolling Methods 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 3
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000005553 drilling Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims 2
- 230000006978 adaptation Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 5
- 238000005219 brazing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical group OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- 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
- B05D3/02—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 baking
- B05D3/0254—After-treatment
-
- 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
-
- 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
- B05D7/24—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 for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- 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
- B05D2301/00—Inorganic additives or organic salts thereof
-
- 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
- B05D2506/00—Halogenated polymers
- B05D2506/10—Fluorinated polymers
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a new energy automobile water cooling plate and a preparation method thereof, and relates to the technical field of new energy water cooling. The invention is used for solving the technical problems that the internal flow channel is easy to be damaged by impact due to excessive instantaneous pressure of the cooling liquid in the water-cooled plate, and the good and durable mechanical property, heat conducting property and corrosion resistance can not be comprehensively exerted by combining the aluminum alloy components and the improvement of the coating and auxiliary parts; heat generated in the working process of the battery module enters the cavity of the water-cooling main board through the heat-conducting gel, the corrosion-resistant heat-conducting coating and the water-cooling cover plate, so that the battery module is rapidly cooled, and the heat exchange efficiency of the water-cooling board of the new energy automobile is improved; the mechanical property and the corrosion resistance of the aluminum alloy coiled material are improved by the cooperation of various elements; the heat-conducting waterproof convex cover and the corrosion-resistant heat-conducting coating are easy to form by means of hot pressing and spraying, so that the finished product of the automobile water-cooling plate has good and durable mechanical property, heat-conducting property and corrosion-resistant property.
Description
Technical Field
The invention relates to the technical field of new energy water cooling, in particular to a new energy automobile water cooling plate and a preparation method thereof.
Background
One of the key technologies of the new energy automobile using the battery as power is battery cooling, and the technology is mainly divided into three modes of air cooling, liquid cooling and direct cooling. The air cooling is widely applied to electric buses, liquid cooling is popular in passenger cars, and the direct cooling technology has the highest requirement, so that the air cooling is a future development direction of electric cars. The new energy automobile water-cooling plate is usually formed by brazing upper and lower aluminum plates, wherein one plate is of a stamped runner structure so as to facilitate circulation of antifreeze fluid for cooling the battery and further continuously cool the battery. In general, the material strength and the corrosion resistance of products are mainly considered, and the aim of thinning and reducing the cost can be achieved by combining the high-strength composite material with the water-cooling plate structure design.
Patent publication No. CN111086289B discloses a water-cooled plate and a manufacturing method thereof, wherein the water-cooled plate comprises an A composite plate and a B composite plate with a runner, and the A composite plate comprises a core material layer aluminum alloy and a water-contact layer aluminum alloy which are sequentially compounded; the B composite board comprises a braze layer aluminum alloy, a core material layer aluminum alloy and a protective layer aluminum alloy which are sequentially compounded; the aluminum alloy of the water contact layer of the A composite board is welded with the aluminum alloy of the brazing layer of the B composite board; the manufacturing method of the water-cooled plate comprises the steps of coiling, annealing, shearing, forming the B composite plate, assembling and welding to obtain the water-cooled plate. The water-cooled plate has high strength after brazing, small size and shape deformation, suitability for stamping forming and good corrosion resistance. Research on new energy automobile water cooling plates and preparation methods thereof in the prior art shows that the instantaneous pressure of the cooling liquid is too high to easily impact and damage the internal flow channel, and the improvement of aluminum alloy components, coatings and auxiliary parts cannot be combined to comprehensively exert good and durable mechanical properties, heat conducting properties and corrosion resistance.
Disclosure of Invention
The invention aims to provide a new energy automobile water cooling plate and a preparation method thereof, which are used for solving the technical problems that in the prior art, the instantaneous pressure of cooling liquid in the water cooling plate is too high, the internal flow channel is easy to be impacted and damaged, and the improvement of aluminum alloy components, coating layers and auxiliary parts cannot be combined to comprehensively exert good and durable mechanical property, heat conducting property and corrosion resistance.
The aim of the invention can be achieved by the following technical scheme:
the invention provides a new energy automobile water-cooling plate, which comprises a water-cooling cover plate, a water-cooling main plate and butt joint ends, wherein the size of the water-cooling cover plate is matched with that of the water-cooling main plate and the water-cooling main plate, the butt joint ends are symmetrically arranged on two sides of the water-cooling cover plate and the water-cooling main plate in the length direction, the water-cooling cover plate and the water-cooling main plate are fastened by bolts penetrating through the butt joint ends on the water-cooling cover plate and the water-cooling main plate, a water inlet plate and a water outlet plate are respectively arranged at the central parts of the two sides of the water-cooling main plate in the length direction, a water inlet joint and a water outlet joint are respectively arranged on the water inlet plate and the water outlet plate, the upper side of the water-cooling cover plate is contacted with a battery module through heat conducting gel, and the upper surface of the water-cooling cover plate is sprayed with a corrosion-resistant heat conducting coating;
the water cooling main board is provided with a concave runner cavity for cooling liquid to flow, a bent runner is formed in the runner cavity in a punching mode, one end of the bent runner is communicated with the water inlet joint, and the other end of the bent runner is communicated with the water outlet joint; the periphery of the bending flow passage is provided with a bending surrounding baffle; the path of the bending runner is provided with a plurality of runner convex blocks which are not contacted with the bending fence, and the periphery of the runner convex blocks is hot-pressed and formed with a heat-conducting waterproof convex cover.
Further, a plurality of rivet holes are formed in the periphery and the center of the water-cooling cover plate and the water-cooling main plate, and rivets penetrate through the rivet holes to fasten the water-cooling cover plate and the water-cooling main plate; the bending surrounding baffle is internally penetrated with a plurality of micro-channels communicated with the adjacent bending channels.
Further, the preparation method of the corrosion-resistant heat-conducting coating comprises the following steps:
preparing a dispersion liquid: dissolving sodium methylene dinaphthyl sulfonate in isopropanol, and carrying out ultrasonic treatment for 20min to obtain a dispersion liquid with the concentration of 0.05 mol/L;
preparing a corrosion-resistant heat-conducting coating material: adding 25-32 parts of aluminum nitride, 10-16 parts of titanium dioxide and 2-5 parts of kaolin into 50 parts of dispersion liquid according to parts by weight, shearing and dispersing to obtain refined slurry with fineness less than 30 mu m, adding 20-28 parts of aqueous fluorocarbon resin and 3-5 parts of dodecanol ester, and stirring at a high speed for 30min to obtain corrosion-resistant heat-conducting coating material;
and (3) spraying and drying: and spraying the corrosion-resistant heat-conducting coating material on the upper surface of the water-cooling cover plate by using compressed air of 0.6-0.8 MPa as power, and drying at 110 ℃ to form the corrosion-resistant heat-conducting coating.
Further, the preparation method of the heat-conducting waterproof convex cover comprises the following steps:
synthesizing a modified grinding aid: sequentially adding maleic anhydride, triisopropanolamine and p-toluenesulfonic acid into a three-neck flask provided with a mechanical stirrer and a condenser tube, heating to 35-45 ℃, carrying out heat preservation and stirring reaction for 3 hours, cooling to room temperature, washing with deionized water, layering, and taking an organic phase; adding hexafluorobutyl methacrylate and an initiator azodiisobutyronitrile into the organic phase, stirring and reacting for 2-3 hours, adding water for dilution, and distilling the organic phase at 50 ℃ under reduced pressure to remove low-boiling components to obtain the modified grinding aid;
preparing modified filling micro powder: according to parts by weight, uniformly mixing 12-25 parts of brown corundum, 3-6 parts of composite phosphate binder and 0.5-3 parts of nano-scale alumina, sequentially carrying out magnetic separation to remove iron, crushing, drying at 80-90 ℃ to constant weight, adding a modified grinding aid, and putting into a ball mill to carry out ball milling for 1-2 hours at a rotating speed of 600-700 rpm to obtain modified filling micro powder;
the preparation of the heat-conducting waterproof material comprises the following steps: according to parts by weight, 1 to 3 parts of calcium carbonate, 0.8 to 1.2 parts of stearic acid, 2 to 4 parts of zinc oxide, 18 to 25 parts of modified filling micro powder, 1 to 3 parts of sulfur and 1 to 3 parts of 2-mercaptobenzothiazole are put into an internal mixer, the mixture is mixed for 5 to 10 minutes to obtain a banburying glue, the banburying glue is boiled to obtain raw rubber sheets, and the raw rubber sheets are put into a vulcanizing machine and vulcanized for 30 minutes at 140 to 150 ℃ to obtain a heat-conducting waterproof material;
cutting and hot pressing: cutting the heat-conducting waterproof material into a size matched with the runner convex block, and hot-pressing and fastening the heat-conducting waterproof material at the periphery of the runner convex block under the pressure of 5MPa at the temperature of 120-135 ℃ to form the heat-conducting waterproof convex cover.
Further, the mole ratio of the maleic anhydride to triisopropanolamine, p-toluenesulfonic acid, hexafluorobutyl methacrylate and azobisisobutyronitrile is 3:2:0.5:1:0.1; the composite phosphate is prepared from aluminum chromium phosphate, magnesium chromium phosphate and sodium chromium phosphate according to a mass ratio of 5:1:1, and mixing.
The invention also provides a preparation method of the new energy automobile water cooling plate, which comprises the following steps:
s1, preparing an aluminum alloy coiled material: weighing alloy raw materials according to element proportion of an aluminum alloy coiled material, milling a surface after casting, hot-rolling and coiling to obtain a hot-rolled coil with the thickness of 5-8 mm, and cold-rolling and coiling the hot-rolled coil to obtain a cold-rolled coil with the thickness of 2-3 mm; annealing the cold-rolled coil in a nitrogen atmosphere to obtain an aluminum alloy coiled material;
s2, shearing and stamping: straightening an aluminum alloy coiled material and shearing the aluminum alloy coiled material into aluminum alloy plates with the sizes matched with the water-cooling cover plate, the water-cooling main plate, the butt joint end, the water inlet plate and the water outlet plate; stamping a water-cooling cover plate by using a stamping machine, stamping a water-cooling main plate with a flow channel cavity, a bending flow channel, a bending surrounding baffle, a micro flow channel and a flow channel convex block, stamping a butt joint end with a mounting hole, a water inlet plate and a water outlet plate, and drilling a plurality of riveting holes by using a drill bit;
s3, preparing a heat-conducting waterproof convex cover: cutting the heat-conducting waterproof material into a size matched with the runner convex block, and hot-pressing and fastening the heat-conducting waterproof material at the periphery of the runner convex block under the pressure of 5MPa at the temperature of 120-135 ℃ to form a heat-conducting waterproof convex cover;
s4, welding and assembling: welding butt ends on two sides of a water-cooling cover plate and a water-cooling main plate, welding a water inlet plate and a water outlet plate on two sides of the water-cooling main plate, welding the water-cooling cover plate and the water-cooling main plate, fastening the water-cooling cover plate and the water-cooling main plate by bolts through the butt ends, and fastening the water-cooling cover plate and the water-cooling main plate by rivets through rivet holes;
s5, coating spraying: and spraying the corrosion-resistant heat-conducting coating material on the upper surface of the water-cooling cover plate by using compressed air of 0.6-0.8 MPa as power, and drying at 110 ℃ to form the corrosion-resistant heat-conducting coating.
Further, the aluminum alloy coiled material comprises the following elements in percentage by mass: 0.3 to 0.6 percent of Fe, 1.2 to 1.8 percent of Mn, 0.1 to 0.3 percent of Mg, 0.2 to 0.4 percent of Zn, 0.6 to 0.9 percent of Cu, 0.06 to 0.13 percent of Ti, 0.02 to 0.06 percent of Zr0.02 to 0.05 percent of Cr, 0.12 to 0.18 percent of Ni, 0.02 to 0.05 percent of Ir, and the balance of Al and unavoidable impurities; the annealing temperature is 360-380 ℃ and the annealing time is 3-4 hours.
The invention has the following beneficial effects:
1. according to the new energy automobile water-cooling plate, the whole structural strength and the inner cavity tightness of the new energy automobile water-cooling plate are maintained in a welding and riveting mode, so that leakage of cooling liquid is avoided; the upper surface of the water-cooling cover plate improves the corrosion resistance and the heat conduction performance through the corrosion-resistant heat conduction coating, so that heat generated in the working process of the battery module enters the cavity of the water-cooling main plate through the heat conduction gel, the corrosion-resistant heat conduction coating and the water-cooling cover plate, and the cooling liquid exchanges heat, so that the battery module is rapidly cooled, the heat exchange efficiency of the water-cooling plate of the new energy automobile is improved, and the service life of the water-cooling plate is prolonged; the micro-channels promote the circulation of the cooling liquid in the adjacent bending channels, and avoid the damage of the bending surrounding baffle due to the impact of the cooling liquid caused by the excessive instantaneous pressure.
2. The corrosion-resistant heat-conducting coating is prepared by preparing a dispersion liquid with methylene dinaphthyl sodium sulfonate with good diffusion performance, mixing the dispersion liquid with aluminum nitride, titanium dioxide, kaolin, aqueous fluorocarbon resin and dodecanol ester to obtain a corrosion-resistant heat-conducting coating material, and then spraying by compressed air, drying and forming; aluminum nitride is a ceramic material with high heat conduction coefficient and excellent electrical insulation property, has high surface activity and good interface compatibility, coalesces into particles with heat-resistant and easily-dispersible titanium dioxide under the bonding action of kaolin, simultaneously promotes the coalescent particles to generate dissolution and swelling action under the bonding and dispersing action of aqueous fluorocarbon resin, and is sprayed on the upper surface of a water-cooled cover plate to generate plastic flow and elastic deformation so as to coalesce a film layer, wherein the film layer has large specific surface area and forms a compact heat conduction network, has small resistance during heat transfer, has strong bonding force with the water-cooled cover plate, has good electronegativity and weather resistance with fluorocarbon bonds in the film layer, and exerts good and long-acting heat conduction property and corrosion resistance.
3. According to the heat-conducting waterproof convex cover, maleic anhydride and triisopropanolamine are subjected to esterification reaction to generate a maleate group, and the maleate group and hexafluorobutyl methacrylate are polymerized under the action of an initiator to obtain the weather-resistant hydrophobic modified grinding aid; the brown alumina and the nano-scale alumina are ball-milled with a modified grinding aid under the dispersion and adhesion effects of a composite phosphate binder to obtain modified filling micro powder, and the brown alumina and the nano-scale alumina have strong fluidity, corrosion resistance and low thermal expansion coefficient, so that the modified filling micro powder has good heat conducting property and corrosion resistance; the modified filling micro powder, the reinforcing agent calcium carbonate, the lubricant stearic acid, the activating agent zinc oxide, the vulcanizing agent sulfur and the vulcanizing accelerator 2-mercaptobenzothiazole are mixed, boiled and vulcanized to obtain the heat-conducting waterproof material, and the heat-conducting waterproof convex cover obtained by cutting and hot pressing of the heat-conducting waterproof material increases the structural strength of the water-cooling main board, promotes the bypass of cooling liquid, increases the contact area with the cooling liquid and improves the rate of heat conducted to the cooling liquid through the heat-conducting waterproof convex cover.
4. The invention relates to a preparation method of a new energy automobile water-cooling plate, which comprises the steps of aluminum alloy coiled material preparation, shearing and stamping, heat conduction waterproof convex cover preparation, welding and assembling and coating spraying; zr element which can form a corrosion-resistant oxide film layer is added into the aluminum alloy coiled material, cr element, ni element and Ir element which have good ductility and corrosion resistance are added, and the mechanical property and the corrosion resistance of the aluminum alloy coiled material are improved by the combination of a plurality of elements; the heat-conducting waterproof convex cover and the corrosion-resistant heat-conducting coating are easy to form by means of hot pressing and spraying, so that the finished product of the automobile water-cooling plate has good and durable mechanical property, heat-conducting property and corrosion-resistant property.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a three-dimensional view of a new energy automobile water-cooled panel of the present invention;
FIG. 2 is a top view of a water-cooled motherboard of the present invention;
FIG. 3 is a three-dimensional view of the new energy automobile water-cooled plate and battery module of the invention after assembly;
FIG. 4 is a flow chart of a preparation method of the water cooling plate of the new energy automobile.
Reference numerals: 1. a water-cooling cover plate; 2. a water-cooling main board; 3. butt joint ends; 4. a bolt; 5. a battery module; 11. riveting holes; 12. a rivet; 21. a water inlet plate; 22. a water outlet plate; 23. a water inlet joint; 24. a water outlet joint; 25. a flow channel cavity; 26. bending the runner; 27. bending the enclosure; 28. a microchannel; 29. and the heat-conducting waterproof convex cover.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1 and 3, a new energy automobile water-cooling plate of this embodiment includes a water-cooling cover plate 1, a water-cooling main plate 2 and a butt joint end 3, the water-cooling cover plate 1 and the water-cooling main plate 2 are sized and adapted and arranged above the water-cooling main plate 2, a plurality of butt joint ends 3 are symmetrically arranged at two sides of the water-cooling cover plate 1 and the water-cooling main plate 2 in the length direction, the water-cooling cover plate 1 and the water-cooling main plate 2 are fastened by bolts 4 penetrating through the butt joint ends 3 on the water-cooling cover plate 1 and the water-cooling main plate 2, a water inlet plate 21 and a water outlet plate 22 are respectively arranged at the central parts of two sides of the water-cooling main plate 2 in the length direction, a water inlet joint 23 and a water outlet joint 24 are respectively arranged on the water inlet plate 21 and the water outlet plate 22, the upper side of the water-cooling cover plate 1 is in surface contact with a battery module 5 through heat conducting gel, and the upper surface of the water-cooling cover plate 1 is sprayed with a corrosion-resistant heat conducting coating. The periphery and the center of the water-cooling cover plate 1 and the water-cooling main plate 2 are provided with a plurality of rivet holes 11, and rivets 12 penetrate through the rivet holes 11 to fasten the water-cooling cover plate 1 and the water-cooling main plate 2.
The water-cooling cover plate 1 and the water-cooling main plate 2 are combined through a brazing process and then fastened through a plurality of rivets 12 penetrating through the rivet holes 11, and the whole structural strength and the inner cavity tightness of the water-cooling plate of the new energy automobile can be maintained in a mode of welding and riveting, so that leakage of cooling liquid is avoided; the upper surface of the water-cooling cover plate 1 improves corrosion resistance and heat conduction performance through the corrosion-resistant heat conduction coating, so that heat generated in the working process of the battery module 5 enters the cavity of the water-cooling main plate 2 through the heat conduction gel, the corrosion-resistant heat conduction coating and the water-cooling cover plate 1, and the cooling liquid exchanges heat, so that the battery module 5 is rapidly cooled, the heat exchange efficiency of the water-cooling plate of the new energy automobile is improved, and the service life of the water-cooling plate is prolonged.
Referring to fig. 2, a concave runner cavity 25 for cooling liquid to flow is provided on the water-cooled main board 2, a bent runner 26 is formed in the runner cavity 25 by punching, one end of the bent runner 26 is communicated with the water inlet joint 23, and the other end is communicated with the water outlet joint 24. The periphery of the bending flow channel 26 is provided with a bending enclosing baffle 27, and a plurality of micro flow channels 28 communicated with the adjacent bending flow channels 26 are arranged in the bending enclosing baffle 27 in a penetrating manner. The path of the bending runner 26 is provided with a plurality of runner lugs which are not contacted with the bending fence 27, and the periphery of the runner lugs is hot-pressed and formed with a heat-conducting waterproof convex cover 29.
The flow channel cavity 25 forms a cooling liquid flow loop through the bent flow channels 26 formed by stamping, so that the cooling liquid at the water inlet joint 23 and the water outlet joint 24 can flow smoothly, the bent surrounding baffle 27 promotes the smooth flow of the cooling liquid in the bent flow channels 26, the micro flow channels 28 promote the cooling liquid to flow in the adjacent bent flow channels 26, and the bent surrounding baffle 27 is prevented from being damaged due to impact of the cooling liquid caused by overlarge instantaneous pressure. The cooperation of the runner lug and the heat-conducting waterproof convex cover 29 increases the structural strength of the water-cooling main board 2, promotes the flowing around of the cooling liquid, increases the contact area with the cooling liquid, and improves the rate of heat conduction to the cooling liquid through the heat-conducting waterproof convex cover 29.
The preparation method of the corrosion-resistant heat-conducting coating comprises the following steps:
preparing a dispersion liquid: dissolving sodium methylene dinaphthyl sulfonate in isopropanol, and carrying out ultrasonic treatment for 20min to obtain a dispersion liquid with the concentration of 0.05 mol/L;
preparing a corrosion-resistant heat-conducting coating material: adding 28g of aluminum nitride, 13g of titanium dioxide and 3g of kaolin into 50g of dispersion liquid, shearing and dispersing to obtain refined slurry with fineness less than 30 mu m, adding 24g of aqueous fluorocarbon resin and 4g of dodecanol ester, and stirring at high speed for 30min to obtain corrosion-resistant heat-conducting coating material;
and (3) spraying and drying: and spraying the corrosion-resistant heat-conducting coating material on the upper surface of the water-cooling cover plate by taking compressed air of 0.7MPa as power, and drying at 110 ℃ to form the corrosion-resistant heat-conducting coating.
The preparation method of the heat-conducting waterproof convex cover comprises the following steps:
synthesizing a modified grinding aid: 29.4g of maleic anhydride, 38.3g of triisopropanolamine and 8.6g of p-toluenesulfonic acid are sequentially added into a three-neck flask provided with a mechanical stirrer and a condenser, the temperature is raised to 40 ℃, the mixture is stirred for 3 hours under heat preservation, and the mixture is cooled to room temperature and then washed by deionized water, and an organic phase is obtained through layering; adding 25g of hexafluorobutyl methacrylate and 1.6g of initiator azodiisobutyronitrile into the organic phase, stirring and reacting for 2.6 hours, adding water for dilution, and distilling the organic phase at 50 ℃ under reduced pressure to remove low-boiling components to obtain the modified grinding aid;
preparing modified filling micro powder: uniformly mixing 24g of brown corundum, 5.6g of composite phosphate binder and 2.8g of nano-scale alumina, sequentially removing iron by magnetic separation, crushing, drying at 86 ℃ to constant weight, adding a modified grinding aid, and putting into a ball mill to perform ball milling for 2 hours at 680rpm to obtain modified filling micro powder; wherein, the composite phosphate is prepared from aluminum chromium phosphate, magnesium chromium phosphate and sodium chromium phosphate according to the mass ratio of 5:1:1, mixing to obtain the product;
the preparation of the heat-conducting waterproof material comprises the following steps: 2.8g of calcium carbonate, 1.2g of stearic acid, 3.6g of zinc oxide, 24g of modified filling micro powder, 2.8g of sulfur and 2.6g of 2-mercaptobenzothiazole are put into an internal mixer, the mixture is mixed for 9min to obtain a banburying glue, the banburying glue is boiled to obtain raw rubber pieces, and the raw rubber pieces are put into a vulcanizing machine and vulcanized for 30min at 150 ℃ to obtain a heat-conducting waterproof material;
cutting and hot pressing: cutting the heat-conducting waterproof material into a size matched with the runner convex block, and hot-pressing and fastening the heat-conducting waterproof material on the periphery of the runner convex block at 128 ℃ under the pressure of 5MPa to form the heat-conducting waterproof convex cover.
As shown in fig. 1-4, the preparation method of the new energy automobile water cooling plate of the embodiment comprises the following steps:
s1, preparing an aluminum alloy coiled material: weighing alloy raw materials according to element proportion of an aluminum alloy coiled material, milling a surface after casting, hot-rolling and coiling to obtain a hot-rolled coil with the thickness of 5-8 mm, and cold-rolling and coiling the hot-rolled coil to obtain a cold-rolled coil with the thickness of 2-3 mm; annealing the cold-rolled coil in a nitrogen atmosphere to obtain an aluminum alloy coiled material; wherein the aluminum alloy coiled material comprises the following elements in percentage by mass: 0.5% of Fe, 1.6% of Mn, 0.2% of Mg, 0.3% of Zn, 0.8% of Cu, 0.11% of Ti, 0.04% of Zr, 0.03% of Cr, 0.15% of Ni, 0.04% of Ir, and the balance of Al and unavoidable impurities; the annealing temperature is 367 ℃, and the annealing time is 4 hours;
s2, shearing and stamping: straightening an aluminum alloy coiled material and shearing the aluminum alloy coiled material into aluminum alloy plates with the sizes matched with the water-cooling cover plate 1, the water-cooling main plate 2, the butt joint end 3, the water inlet plate 21 and the water outlet plate 22; the water-cooling cover plate 1 is punched by a punching machine, the water-cooling main plate 2 with a runner cavity 25, a bending runner 26, a bending surrounding baffle 27, a micro runner 28 and a runner lug is punched, the butt joint end 3 with a mounting hole, the water inlet plate 21 and the water outlet plate 22 are punched, and the drill bit drills a plurality of riveting holes 11;
s3, preparing a heat-conducting waterproof convex cover: cutting the heat-conducting waterproof material into a size matched with the runner convex block, and hot-pressing and fastening the heat-conducting waterproof material on the periphery of the runner convex block at 130 ℃ under the pressure of 5MPa to form a heat-conducting waterproof convex cover;
s4, welding and assembling: welding the butt joint end 3 on two sides of the water-cooling cover plate 1 and the water-cooling main plate 2, welding the water inlet plate 21 and the water outlet plate 22 on two sides of the water-cooling main plate 2, welding the water-cooling cover plate 1 and the water-cooling main plate 2, fastening the water-cooling cover plate 1 and the water-cooling main plate 2 by passing the butt joint end 3 through bolts 4, and fastening the water-cooling cover plate 1 and the water-cooling main plate 2 by passing rivets 12 through rivet holes 11;
s5, coating spraying: and spraying the corrosion-resistant heat-conducting coating material on the upper surface of the water-cooling cover plate by taking compressed air of 0.7MPa as power, and drying at 110 ℃ to form the corrosion-resistant heat-conducting coating.
Example 2
The difference between the new energy automobile water cooling plate of the embodiment and the embodiment 1 is that the preparation method of the corrosion-resistant heat conduction coating comprises the following steps:
preparing a dispersion liquid: dissolving sodium methylene dinaphthyl sulfonate in isopropanol, and carrying out ultrasonic treatment for 20min to obtain a dispersion liquid with the concentration of 0.05 mol/L;
preparing a corrosion-resistant heat-conducting coating material: adding 32g of aluminum nitride, 11g of titanium dioxide and 5g of kaolin into 50g of dispersion liquid, shearing and dispersing to obtain refined slurry with fineness less than 30 mu m, adding 22g of aqueous fluorocarbon resin and 4.6g of dodecanol ester, and stirring at high speed for 30min to obtain corrosion-resistant heat-conducting coating material;
and (3) spraying and drying: and spraying the corrosion-resistant heat-conducting coating material on the upper surface of the water-cooling cover plate by taking compressed air of 0.65MPa as power, and drying at 110 ℃ to form the corrosion-resistant heat-conducting coating.
The preparation method of the heat-conducting waterproof convex cover comprises the following steps:
synthesizing a modified grinding aid: 29.4g of maleic anhydride, 38.3g of triisopropanolamine and 8.6g of p-toluenesulfonic acid are sequentially added into a three-neck flask provided with a mechanical stirrer and a condenser, the temperature is raised to 40 ℃, the mixture is stirred for 3 hours under heat preservation, and the mixture is cooled to room temperature and then washed by deionized water, and an organic phase is obtained through layering; adding 25g of hexafluorobutyl methacrylate and 1.6g of initiator azodiisobutyronitrile into the organic phase, stirring and reacting for 2.6 hours, adding water for dilution, and distilling the organic phase at 50 ℃ under reduced pressure to remove low-boiling components to obtain the modified grinding aid;
preparing modified filling micro powder: uniformly mixing 15g of brown corundum, 3.2g of composite phosphate binder and 0.8g of nano-scale alumina, sequentially carrying out magnetic separation to remove iron, crushing, drying at 82 ℃ to constant weight, adding a modified grinding aid, and putting into a ball mill to carry out ball milling at 630rpm for 1.2 hours to obtain modified filling micro powder; wherein, the composite phosphate is prepared from aluminum chromium phosphate, magnesium chromium phosphate and sodium chromium phosphate according to the mass ratio of 5:1:1, mixing to obtain the product;
the preparation of the heat-conducting waterproof material comprises the following steps: placing 1.5g of calcium carbonate, 0.9g of stearic acid, 2.3g of zinc oxide, 20g of modified filling micro powder, 1.2g of sulfur and 1.6g of 2-mercaptobenzothiazole into an internal mixer, mixing for 7min to obtain a banburying glue, and boiling the banburying glue to obtain raw rubber pieces, placing the raw rubber pieces into a vulcanizing machine, and vulcanizing at 145 ℃ for 30min to obtain a heat-conducting waterproof material;
cutting and hot pressing: cutting the heat-conducting waterproof material into a size matched with the runner convex block, and hot-pressing and fastening the heat-conducting waterproof material on the periphery of the runner convex block at 126 ℃ under the pressure of 5MPa to form the heat-conducting waterproof convex cover.
The aluminum alloy coiled material comprises the following elements in percentage by mass during the preparation of the water-cooling plate of the new energy automobile: fe0.3%, mn 1.6%, mg 0.3%, zn 0.4%, cu 0.7%, ti 0.09%, zr 0.05%, cr 0.02%, ni 0.14%, ir 0.04%, the balance being Al and unavoidable impurities; the annealing temperature was 378℃and the annealing time was 3.2 hours.
Example 3
The difference between the new energy automobile water cooling plate of the embodiment and the embodiment 1 is that the preparation method of the corrosion-resistant heat conduction coating comprises the following steps:
preparing a dispersion liquid: dissolving sodium methylene dinaphthyl sulfonate in isopropanol, and carrying out ultrasonic treatment for 20min to obtain a dispersion liquid with the concentration of 0.05 mol/L;
preparing a corrosion-resistant heat-conducting coating material: adding 27g of aluminum nitride, 15g of titanium dioxide and 2.6g of kaolin into 50g of dispersion liquid, shearing and dispersing to obtain refined slurry with fineness less than 30 mu m, adding 27g of aqueous fluorocarbon resin and 3.3g of dodecanol ester, and stirring at high speed for 30min to obtain corrosion-resistant heat-conducting coating material;
and (3) spraying and drying: and spraying the corrosion-resistant heat-conducting coating material on the upper surface of the water-cooling cover plate by taking compressed air of 0.78MPa as power, and drying at 110 ℃ to form the corrosion-resistant heat-conducting coating.
The preparation method of the heat-conducting waterproof convex cover comprises the following steps:
synthesizing a modified grinding aid: 29.4g of maleic anhydride, 38.3g of triisopropanolamine and 8.6g of p-toluenesulfonic acid are sequentially added into a three-neck flask provided with a mechanical stirrer and a condenser, the temperature is raised to 40 ℃, the mixture is stirred for 3 hours under heat preservation, and the mixture is cooled to room temperature and then washed by deionized water, and an organic phase is obtained through layering; adding 25g of hexafluorobutyl methacrylate and 1.6g of initiator azodiisobutyronitrile into the organic phase, stirring and reacting for 2.6 hours, adding water for dilution, and distilling the organic phase at 50 ℃ under reduced pressure to remove low-boiling components to obtain the modified grinding aid;
preparing modified filling micro powder: 17g of brown corundum, 4.6g of composite phosphate binder and 1.7g of nano-scale alumina are uniformly mixed, and then subjected to magnetic separation to remove iron, crushing, drying at 85 ℃ to constant weight, adding a modified grinding aid, and putting into a ball mill to perform ball milling for 1.6 hours at 660rpm to obtain modified filling micro powder; wherein, the composite phosphate is prepared from aluminum chromium phosphate, magnesium chromium phosphate and sodium chromium phosphate according to the mass ratio of 5:1:1, mixing to obtain the product;
the preparation of the heat-conducting waterproof material comprises the following steps: 2g of calcium carbonate, 1g of stearic acid, 2.8g of zinc oxide, 21g of modified filling micro powder, 2.2g of sulfur and 1.9g of 2-mercaptobenzothiazole are put into an internal mixer, mixed for 8min to obtain a rubber compound, the rubber compound is boiled to obtain rubber pieces, and the rubber pieces are put into a vulcanizing machine and vulcanized for 30min at 140-150 ℃ to obtain the heat-conducting waterproof material;
cutting and hot pressing: cutting the heat-conducting waterproof material into a size matched with the runner convex block, and hot-pressing and fastening the heat-conducting waterproof material at 122 ℃ and under the pressure of 5MPa on the periphery of the runner convex block to form the heat-conducting waterproof convex cover.
The aluminum alloy coiled material comprises the following elements in percentage by mass during the preparation of the water-cooling plate of the new energy automobile: fe0.6%, mn 1.8%, mg 0.18%, zn 0.25%, cu 0.8%, ti0.11%, zr 0.05%, cr 0.05%, ni 0.15%, ir 0.05%, the balance being Al and unavoidable impurities; the annealing temperature was 380℃and the annealing time was 3.2 hours.
Performance testing
Reference standard GB/T3880.2-2012 general Industrial aluminum and aluminum alloy sheet, strip part 2: mechanical Properties testing the tensile strength, the tensile strength and the elongation after break of the aluminum alloy plates prepared in examples 1 to 3; the corrosion-resistant heat conductive coating and the heat conductive waterproof protruding cover in examples 1 to 3 were subjected to a heat conductivity test with reference to the heat conductivity test standard ASTM D5470; after the corrosion resistance is treated by seawater salt fog for 30 days, 3MPa compressed air is injected to observe whether leakage points exist.
As can be seen from the test results of the table, the novel energy automobile water-cooling plate prepared by the invention has excellent mechanical properties of tensile strength, extension strength and elongation after break of the aluminum alloy plate, and the corrosion-resistant heat-conducting coating and the heat-conducting waterproof convex cover have higher heat conductivity and excellent heat conductivity, and the compressed air injected after seawater salt fog treatment has no leakage points to indicate that the corrosion resistance is excellent; the novel energy automobile water-cooling plate finished product can exert good and durable mechanical property, heat conducting property and corrosion resistance.
The foregoing is merely illustrative and explanatory of the invention, as it is well within the scope of the invention as claimed, as it relates to various modifications, additions and substitutions for those skilled in the art, without departing from the inventive concept and without departing from the scope of the invention as defined in the accompanying claims.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form 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 understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (6)
1. The utility model provides a new energy automobile water-cooling board, including water-cooling apron (1), water-cooling mainboard (2) and butt joint end (3), the size adaptation of water-cooling apron (1) and water-cooling mainboard (2) is located water-cooling mainboard (2) top, a plurality of butt joint ends (3) symmetry set up in water-cooling apron (1) and water-cooling mainboard (2) length direction's both sides, pass water-cooling apron (1) and water-cooling mainboard (2) on bolt (4) of butt joint end (3) fasten water-cooling apron (1) and water-cooling mainboard (2), characterized in that, water-cooling mainboard (2) length direction's both sides central part is equipped with water inlet plate (21) and water outlet plate (22) respectively, be equipped with water inlet connector (23) and water outlet connector (24) on water inlet plate (21) and the water outlet plate (22) respectively, water-cooling apron (1) top is through corrosion-resistant heat conduction coating and battery module (5) face contact;
the water cooling main board (2) is provided with an inward concave runner cavity (25) for cooling liquid to flow, a bending runner (26) is formed in the runner cavity (25) in a punching mode, one end of the bending runner (26) is communicated with the water inlet joint (23), and the other end of the bending runner is communicated with the water outlet joint (24); the periphery of the bending runner (26) is provided with a bending surrounding baffle (27), a plurality of runner convex blocks which are not contacted with the bending surrounding baffle (27) are arranged on the path of the bending runner (26), and the periphery of the runner convex blocks is hot-pressed and formed with a heat-conducting waterproof convex cover (29);
the preparation method of the corrosion-resistant heat-conducting coating comprises the following steps:
preparing a dispersion liquid: dissolving sodium methylene dinaphthyl sulfonate in isopropanol, and carrying out ultrasonic treatment for 20min to obtain a dispersion liquid with the concentration of 0.05 mol/L;
preparing a corrosion-resistant heat-conducting coating material: adding 25-32 parts of aluminum nitride, 10-16 parts of titanium dioxide and 2-5 parts of kaolin into 50 parts of dispersion liquid according to parts by weight, shearing and dispersing to obtain refined slurry with fineness less than 30 mu m, adding 20-28 parts of aqueous fluorocarbon resin and 3-5 parts of dodecanol ester, and stirring at a high speed for 30min to obtain corrosion-resistant heat-conducting coating material;
and (3) spraying and drying: and spraying the corrosion-resistant heat-conducting coating material on the upper surface of the water-cooling cover plate by using compressed air of 0.6-0.8 MPa as power, and drying at 110 ℃ to form the corrosion-resistant heat-conducting coating.
2. The water-cooling plate for the new energy automobile according to claim 1, wherein a plurality of rivet holes (11) are formed in the periphery and the center of the water-cooling cover plate (1) and the water-cooling main plate (2), and rivets (12) penetrate through the rivet holes (11) to fasten the water-cooling cover plate (1) and the water-cooling main plate (2); a plurality of micro-channels (28) communicated with adjacent bending channels (26) are penetrated in the bending surrounding baffle (27).
3. The new energy automobile water-cooling plate according to claim 1, wherein the preparation method of the heat-conducting waterproof convex cover comprises the following steps:
synthesizing a modified grinding aid: sequentially adding maleic anhydride, triisopropanolamine and p-toluenesulfonic acid into a three-neck flask provided with a mechanical stirrer and a condenser tube, heating to 35-45 ℃, carrying out heat preservation and stirring reaction for 3 hours, cooling to room temperature, washing with deionized water, layering, and taking an organic phase; adding hexafluorobutyl methacrylate and an initiator azodiisobutyronitrile into the organic phase, stirring and reacting for 2-3 hours, adding water for dilution, and distilling the organic phase at 50 ℃ under reduced pressure to remove low-boiling components to obtain a modified grinding aid;
preparing modified filling micro powder: uniformly mixing 12-25 parts of brown corundum, 3-6 parts of composite phosphate binder and 0.5-3 parts of nano-scale alumina according to parts by weight, sequentially carrying out magnetic separation to remove iron, crushing, drying at 80-90 ℃ to constant weight, adding a modified grinding aid, and putting into a ball mill to carry out ball milling at 600-700 rpm for 1-2 hours to obtain modified filling micro powder;
the preparation of the heat-conducting waterproof material comprises the following steps: according to parts by weight, 1-3 parts of calcium carbonate, 0.8-1.2 parts of stearic acid, 2-4 parts of zinc oxide, 18-25 parts of modified filling micro powder, 1-3 parts of sulfur and 1-3 parts of 2-mercaptobenzothiazole are placed into an internal mixer, the internal mixer is mixed for 5-10 min to obtain a banburying glue, the banburying glue is boiled to obtain raw rubber sheets, and the raw rubber sheets are placed into a vulcanizing machine and vulcanized for 30min at 140-150 ℃ to obtain a heat-conducting waterproof material;
cutting and hot pressing: cutting the heat-conducting waterproof material into a size matched with the runner convex block, and hot-pressing and fastening the heat-conducting waterproof material on the periphery of the runner convex block at 120-135 ℃ under the pressure of 5MPa to form the heat-conducting waterproof convex cover.
4. The water-cooled panel for a new energy automobile according to claim 3, wherein the molar ratio of maleic anhydride to triisopropanolamine, p-toluenesulfonic acid, hexafluorobutyl methacrylate and azobisisobutyronitrile is 3:2:0.5:1:0.1; the composite phosphate is prepared from aluminum chromium phosphate, magnesium chromium phosphate and sodium chromium phosphate according to a mass ratio of 5:1:1, and mixing.
5. The method for preparing the water-cooled panel of the new energy automobile according to claim 1, which is characterized by comprising the following steps:
s1, preparing an aluminum alloy coiled material: weighing alloy raw materials according to element proportions of aluminum alloy coiled materials, milling surfaces after casting, hot rolling and winding to obtain a hot rolled coil with the thickness of 5-8 mm, and cold rolling and winding the hot rolled coil to obtain a cold rolled coil with the thickness of 2-3 mm; annealing the cold-rolled coil in a nitrogen atmosphere to obtain an aluminum alloy coiled material;
s2, shearing and stamping: straightening and shearing an aluminum alloy coiled material into an aluminum alloy plate with the sizes matched with the water-cooling cover plate (1), the water-cooling main plate (2), the butt joint end (3), the water inlet plate (21) and the water outlet plate (22); stamping a water-cooling cover plate (1) by using a stamping machine, stamping a water-cooling main plate (2) with a flow channel cavity (25), a bending flow channel (26), a bending surrounding baffle (27), a micro flow channel (28) and flow channel convex blocks, stamping a butt joint end (3) with a mounting hole, a water inlet plate (21) and a water outlet plate (22), and drilling a plurality of riveting holes (11) by a drill bit;
s3, preparing a heat-conducting waterproof convex cover: cutting the heat-conducting waterproof material into a size matched with the runner convex block, and hot-pressing and fastening the heat-conducting waterproof material on the periphery of the runner convex block at 120-135 ℃ under the pressure of 5MPa to form a heat-conducting waterproof convex cover;
s4, welding and assembling: welding butt joint ends (3) on two sides of a water-cooling cover plate (1) and a water-cooling main plate (2), welding a water inlet plate (21) and a water outlet plate (22) on two sides of the water-cooling main plate (2), welding the water-cooling cover plate (1) and the water-cooling main plate (2), fastening the water-cooling cover plate (1) and the water-cooling main plate (2) by bolts (4) penetrating through the butt joint ends (3), and fastening the water-cooling cover plate (1) and the water-cooling main plate (2) by rivets (12) penetrating through rivet holes (11);
s5, coating spraying: and spraying the corrosion-resistant heat-conducting coating material on the upper surface of the water-cooling cover plate by using compressed air of 0.6-0.8 MPa as power, and drying at 110 ℃ to form the corrosion-resistant heat-conducting coating.
6. The preparation method of the new energy automobile water-cooling plate according to claim 5, wherein the aluminum alloy coiled material comprises the following elements in percentage by mass: 0.3-0.6% of Fe, 1.2-1.8% of Mn, 0.1-0.3% of Mg, 0.2-0.4% of Zn, 0.6-0.9% of Cu, 0.06-0.13% of Ti, 0.02-0.06% of Zr, 0.02-0.05% of Cr, 0.12-0.18% of Ni, 0.02-0.05% of Ir, and the balance of Al and unavoidable impurities; the annealing temperature is 360-380 ℃, and the annealing time is 3-4 hours.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817952A (en) * | 2015-04-30 | 2015-08-05 | 佛山市禾才科技服务有限公司 | High-temperature-resistant, reflection-resistant and aging-resistant heat-dissipating powder coating and preparation method thereof |
| CN112349970A (en) * | 2020-12-01 | 2021-02-09 | 重庆金美新材料科技有限公司 | Lithium ion battery cell, manufacturing method and lithium ion battery |
| CN216648440U (en) * | 2021-11-18 | 2022-05-31 | 南京创源动力科技有限公司 | New energy battery water-cooling plate structure |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817952A (en) * | 2015-04-30 | 2015-08-05 | 佛山市禾才科技服务有限公司 | High-temperature-resistant, reflection-resistant and aging-resistant heat-dissipating powder coating and preparation method thereof |
| CN112349970A (en) * | 2020-12-01 | 2021-02-09 | 重庆金美新材料科技有限公司 | Lithium ion battery cell, manufacturing method and lithium ion battery |
| CN216648440U (en) * | 2021-11-18 | 2022-05-31 | 南京创源动力科技有限公司 | New energy battery water-cooling plate structure |
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Effective date of registration: 20231225 Address after: Building 1, No. 999 Zhenxing Road, Yanlong Street, Yandu District, Yancheng City, Jiangsu Province, 224000 (D) Patentee after: Yancheng Dongchuang Precision Manufacturing Co.,Ltd. Address before: No.3699 puzhuang Avenue, Xukou Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: SUZHOU YONGCHUANG METAL SCIENCE AND TECHNOLOGY Co.,Ltd. |