WO2023005446A1 - 烘干装置及涂布设备 - Google Patents

烘干装置及涂布设备 Download PDF

Info

Publication number
WO2023005446A1
WO2023005446A1 PCT/CN2022/097939 CN2022097939W WO2023005446A1 WO 2023005446 A1 WO2023005446 A1 WO 2023005446A1 CN 2022097939 W CN2022097939 W CN 2022097939W WO 2023005446 A1 WO2023005446 A1 WO 2023005446A1
Authority
WO
WIPO (PCT)
Prior art keywords
drying
coating
heating
chamber
air inlet
Prior art date
Application number
PCT/CN2022/097939
Other languages
English (en)
French (fr)
Inventor
林银祥
金鹏
郭超
廖能武
李立军
亢雪峰
Original Assignee
宁德时代新能源科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Priority to EP22848055.4A priority Critical patent/EP4234105A4/en
Publication of WO2023005446A1 publication Critical patent/WO2023005446A1/zh
Priority to US18/201,647 priority patent/US12085335B2/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/101—Supporting materials without tension, e.g. on or between foraminous belts
    • F26B13/104—Supporting materials without tension, e.g. on or between foraminous belts supported by fluid jets only; Fluid blowing arrangements for flotation dryers, e.g. coanda nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/001—Drying and oxidising yarns, ribbons or the like
    • F26B13/002—Drying coated, e.g. enamelled, varnished, wires
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/06—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path
    • F26B13/08—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path using rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/04—Heating arrangements using electric heating
    • F26B23/06—Heating arrangements using electric heating resistance heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06—Chambers, containers, or receptacles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F26B3/30—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun from infrared-emitting elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/04—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
    • 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
    • B05D2202/00—Metallic substrate
    • 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
    • B05D2252/00—Sheets
    • B05D2252/02—Sheets of indefinite length
    • 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
    • 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
    • B05D3/0433—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 a reactive gas
    • B05D3/0453—After-treatment
    • B05D3/046—Curing or evaporating the solvent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0409—Methods of deposition of the material by a doctor blade method, slip-casting or roller coating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
    • 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

Definitions

  • the present application relates to the field of battery technology, in particular, to a drying device and coating equipment.
  • the embodiments of the present application provide a drying device and coating equipment to improve the drying quality of pole pieces.
  • an embodiment of the present application provides a drying device, including a drying chamber and a heating assembly.
  • the drying chamber is used to accommodate the article to be dried, the drying chamber has a first drying side facing the article to be dried, and the first drying side is provided with a fluid medium to enter the drying chamber. Multiple first air inlets of the chamber.
  • the heating assembly is arranged on the first drying side, and the heating assembly is configured to dry the article to be dried.
  • the first drying side is also provided with a return air part, and at least one return air part is provided between two adjacent first air inlet parts, and the return air part is configured to supply air in the drying chamber.
  • the fluid medium exits the drying chamber.
  • At least one return air part is set between two adjacent first air inlet parts, and the return air part can discharge the fluid medium in the drying chamber out of the drying chamber.
  • the air part provides fluid medium to the drying chamber, and the fluid medium acts on the piece to be dried and is guided by the piece to be dried to between the two first air inlet parts, so that the heat carried by the fluid medium is transferred between the two first air inlet parts. Convergence between them, causing the corresponding part between the two adjacent first air inlet parts to be overheated, so that the parts to be dried are heated unevenly, and the return air part can be set between the two first air inlet parts.
  • the fluid medium between the two first air inlets is discharged and the heat is taken away, so that heat is prevented from gathering between the two first air inlets, and the heating uniformity of the article to be dried is improved.
  • the drying device includes a first wall facing the article to be dried in a first direction, the first air inlet part, the heating assembly and the The return air parts are all arranged on the first wall; the drying device further includes a first drive unit configured to adjust the position between the first wall and the article to be dried in the first wall. distance in one direction.
  • the first driving unit can drive the first wall provided with the first air inlet part, the heating assembly and the return air part to move, so as to adjust the distance between the first wall and the article to be dried in the first direction, Therefore, the distance between the heating component and the piece to be dried can be adjusted to meet different heating requirements and improve the heating quality.
  • the drying device further includes a first air inlet chamber, the first air inlet chamber is separated from the drying chamber by a first wall, and the first air inlet chamber is separated from the drying chamber by a first wall.
  • the air part, the heating assembly and the air return part are all arranged on the first wall; wherein, the first air inlet part is used to allow the fluid medium in the first air inlet chamber to enter the drying chamber .
  • the drying device further includes a first air inlet chamber, and after the fluid medium enters the first air inlet chamber, it enters the drying chamber from a plurality of first air inlet parts, so that the fluid medium can be more evenly distributed in the drying chamber. Indoor, so as to improve the heating uniformity of the pieces to be dried.
  • the first air inlet chamber and the drying chamber share the first wall and are separated by the first wall, which can reduce the volume of the drying device.
  • the drying device further includes a return air chamber and a circulation unit, the return air chamber is configured to accommodate the fluid medium discharged from the return air part, and the circulation unit It is configured to guide the fluid medium in the air return chamber into the first air inlet chamber.
  • the fluid medium discharged from the air return part can be accommodated in the return air chamber, and then enter the first air inlet chamber under the action of the circulation unit, so that it can enter the drying chamber through the first air inlet part, and can be recycled. Dry the heat generated by the heating components in the room, reducing energy consumption.
  • the drying chamber further has a second drying side arranged opposite to the first drying side in the first direction, and the second drying side is provided with a The fluid medium enters multiple second air inlets of the drying chamber.
  • the first air inlet part can make the fluid medium enter the drying chamber from the second drying side of the drying chamber, and can speed up the flow of the fluid medium in the drying chamber, thereby speeding up the flow of heat in the drying chamber, so as to The heat is evenly distributed in the drying chamber, and the heating uniformity of the pieces to be dried is improved.
  • the drying device includes a first wall facing the item to be dried in the first direction and a second wall arranged opposite to the first wall;
  • the first air inlet part, the heating assembly and the air return part are all arranged on the first wall, and the second air inlet part is arranged on the second wall;
  • the first direction is located between the first wall and the second wall;
  • the drying device further includes a second driving unit configured to drive the second wall to move to adjust the The distance between the second wall and the first wall in the first direction.
  • the second driving unit can drive the second wall to move to adjust the distance between the second wall and the first wall in the first direction, so as to adapt to items to be dried with different sizes along the first direction.
  • At least one heating assembly is arranged between two adjacent first air inlets.
  • At least one heating component is arranged between two adjacent first air inlet parts, so that when the first air inlet part supplies the fluid medium to the drying chamber, it can transfer the heat of the heating component along with the flow of the fluid medium. Bring it to various positions in the drying chamber to improve the uniformity of heat distribution, thereby improving the heating uniformity of the pieces to be dried.
  • the drying device includes a blowing part configured to provide a fluid medium to the heating component to adjust the temperature of the heating component.
  • the blowing part can provide fluid medium to the heating component to adjust the temperature of the heating component.
  • the blowing part sends cold air to the heating component to cool down the heating component, which can increase the life of the heating component.
  • the heating assembly includes a mounting frame and a heating unit, the mounting frame is arranged on the first drying side, and the heating unit and the blowing part are both arranged on the the mounting bracket described above.
  • the heating unit and the blowing part are both arranged on the mounting frame, so that the blowing part is arranged close to the heating unit, and the fluid medium entering from the blowing part can act on the heating unit directly or through a short distance, reducing the size of the blowing part.
  • the heating assembly further includes a guard, and the guard is disposed on the installation frame and surrounds the outer periphery of the heating unit.
  • the setting of the protective member can separate the heating unit from the item to be dried, so as to prevent the item to be dried from being directly contacted with the heating unit and damage the item to be dried.
  • the distance between one of the two first air inlet parts and the air return part and the other of the two first air inlet parts is equal.
  • the return air part is set at the middle position between two adjacent first air inlet parts, which is beneficial to improve the uniformity of heat distribution in the drying chamber.
  • the embodiment of the present application provides a coating device, including a coating device and the drying device provided in the embodiment of the first aspect.
  • the drying device is used for drying the coating applied on the substrate.
  • the drying chamber of the coating equipment is provided with a return air part, and the return air part can discharge the fluid medium in the drying chamber out of the drying chamber.
  • a fluid medium is provided, and after the fluid medium acts on the piece to be dried, it is guided by the piece to be dried between the two first air inlets, so that the heat carried by the fluid medium is collected between the two first air inlets, resulting in a phase
  • the corresponding part between the two adjacent first air inlet parts is overheated, so that the heating of the parts to be dried is uneven, and the return air part is set between the two first air inlet parts to make the two first air inlet parts
  • the fluid medium between the air parts discharges and takes away heat, avoiding the accumulation of heat between the two first air inlet parts, and improving the heating uniformity of the pieces to be dried.
  • the coating device includes a first coating mechanism and a second coating mechanism, and the second coating mechanism is arranged downstream of the first coating mechanism, so The first coating mechanism is configured to coat a first surface of the substrate, and the second coating mechanism is configured to coat a second surface of the substrate opposite to the first surface.
  • Coating; the coating equipment includes two drying devices, one of which is located downstream of the first coating mechanism and upstream of the second coating mechanism, so as to drying the coating on the first side, the other of the two drying devices is located downstream of the second coating mechanism to dry the coating on the second side Dry.
  • one of the two drying devices is used for drying the coating on the first side of the substrate, and the other is used for drying the coating on the second side of the substrate, so as to increase the heating of the substrate. uniformity.
  • the coating equipment further includes a heating device, the heating device is arranged downstream of the drying device located downstream of the second coating mechanism, and the heating The apparatus is configured to dry the coating on the second side.
  • the coating on the first side of the substrate and the coating on the second side are dried by respective drying devices, wherein the coating on the second side is dried When drying, the coating on the first side will be dried again, so that the drying degree of the coating on the first side and the coating on the second side is different, resulting in uneven drying, and the heating device can dry the coating on the second side Perform secondary drying to make the drying degree of the coating on the first side and the coating on the second side tend to be consistent, and reduce the drying difference between the coating on the first side and the coating on the second side.
  • Fig. 1 is the structural representation of drying device in the prior art
  • Fig. 2 is the structural representation of the coating equipment provided by some embodiments of the present application.
  • Fig. 3 is a schematic structural diagram of a drying device provided in some embodiments of the present application.
  • Fig. 4 is a schematic structural diagram of a first viewing angle of a drying device provided by some embodiments of the present application.
  • Fig. 5 is a schematic structural diagram of a second viewing angle of a drying device provided by some embodiments of the present application.
  • Fig. 6 is a schematic structural diagram of a third viewing angle of a drying device provided by some embodiments of the present application.
  • Fig. 7 is a structural schematic diagram of a first viewing angle of a heating assembly provided by some embodiments of the present application.
  • Fig. 8 is a schematic structural diagram of a second viewing angle of a heating assembly provided by some embodiments of the present application.
  • Fig. 9 is a schematic structural diagram of a first viewing angle of a heating device provided by some embodiments of the present application.
  • Fig. 10 is a schematic structural diagram of a second viewing angle of a heating device provided by some embodiments of the present application.
  • Fig. 11 is a schematic structural diagram of a cooling traction device provided by some embodiments of the present application.
  • Icons 1-dryer; 1a-air inlet nozzle; 1b-converging area; 1c-pole piece; 1000-coating equipment; 100-coating device; 110-first coating mechanism; 120-second coating Mechanism; 200-drying device; 20-drying chamber; 201-first drying side; 202-second drying side; 21-heating component; 211-installation frame; 212-fixing groove; 213-heating unit; 214-protection piece; 22-the first air inlet part; 23-return air part; 24-the first bellows; 241-the first wall; 242-the first air inlet chamber; 243-the first box; 244-the first 25-first drive unit; 26-outer box; 262-first inlet; 263-first outlet; 264-first air outlet; 27-second air inlet; 28-second air box; 281 -Second wall; 282-Second air intake chamber; 283-Second cabinet; 284-Second air supply port; 29-Second
  • the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the application is used, or the orientation or positional relationship of this application.
  • Orientations or positional relationships commonly understood by those skilled in the art are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood For the limitation of this application.
  • the terms “first”, “second”, “third”, etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.
  • “Plurality” in this application refers to two or more (including two).
  • the pole piece mentioned in the embodiment of the present application includes a current collector and an active material layer coated on the surface of the current collector.
  • the active material layer is coated on a part of the current collector.
  • the current collector coated with the active material layer, and the current collector not coated with the active material layer are used as tabs of the pole piece.
  • the pole piece can be a positive pole piece or a negative pole piece. If the pole sheet is a positive electrode sheet, the positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer, the positive electrode active material layer is coated on the surface of the positive electrode current collector, and the positive electrode current collector that is not coated with the positive electrode active material layer protrudes from the coated positive electrode.
  • the positive current collector of the active material layer, and the positive current collector not coated with the positive active material layer are used as positive tabs.
  • the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobaltate, lithium iron phosphate, ternary lithium or lithium manganate.
  • the pole sheet is a negative electrode sheet
  • the negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer, the negative electrode active material layer is coated on the surface of the negative electrode current collector, and the negative electrode collector without the negative electrode active material layer protrudes from the coated negative electrode
  • the negative electrode current collector of the active material layer, and the negative electrode current collector not coated with the negative electrode active material layer are used as negative electrode tabs.
  • the material of the negative electrode current collector may be copper, and the negative electrode active material may be carbon or silicon.
  • pole pieces In the manufacture of pole pieces, many factors need to be considered to ensure the forming quality of the pole piece, such as coating weight, coating density, coating thickness, tape running accuracy and other factors.
  • the active material of the pole piece also needs to be considered The drying quality of the layer.
  • the main factors affecting the drying quality of the active material layer of the pole piece include heating uniformity, insufficient heating, and excessive heating. If the pole piece is heated unevenly, there will be uneven dehydration of the pole piece, which will lead to uneven thickness of the pole piece. When the electrode assembly is heated and expanded, it will cause lithium precipitation due to uneven force, which will affect the electrical performance and safety performance of the battery. If the pole piece is not heated enough, the water content of the active material layer is too high to affect the electrical conductivity. If the pole piece is overheated, the active material layer will easily crack and fall off.
  • the dryer 1 has multiple air inlet nozzles 1a arranged side by side, each The active material layer of the pole piece 1c is blown to the pole piece 1c.
  • the wind sent from the air inlet nozzle 1a acts on the pole piece 1c, it will spread around the center of the vertical action point of the wind and the pole piece 1c.
  • the direction of the solid arrow in Figure 1 is the view of the flow direction after the wind from the air inlet nozzle 1a acts on the pole piece 1c.
  • the wind from the air inlet nozzle 1a acts on the pole piece 1c, it will flow between two adjacent air inlet nozzles 1a A converging area 1b is formed, and the wind carries heat flow, so the heat in the converging area 1b between two adjacent air inlet nozzles 1a is higher than that in other positions, so that the corresponding active material layer at the converging area 1b is heated The degree is greater than that of other positions, so that the active material layer of the pole piece 1c is heated unevenly, and even the active material layer corresponding to the converging area 1b is overheated.
  • the embodiment of the present application provides a technical solution.
  • the fluid medium in the drying chamber can be discharged through the return air part.
  • the return air part exhausts the fluid medium so as to take away the heat between the two adjacent first air inlet parts, avoiding the accumulation of heat between the two first air inlet parts, and improving the heating uniformity of the article to be dried.
  • a coating device 1000 provided by some embodiments of the present application includes a coating device 100 and a drying device 200 .
  • the coating device 100 is used to coat the surface of the substrate 3000 to form a coating on the surface of the substrate 3000 .
  • the drying device 200 is used for drying the coating applied on the substrate 3000 .
  • the relevant structure is introduced by taking the coating equipment 1000 for coating and forming pole pieces as an example. Therefore, the substrate 3000 may be a current collector, and the coating formed on the surface of the substrate 3000 by the coating device 100 may be an active material layer. Depending on the polarity of the pole piece, the material of the current collector and the material of the active material layer are different. If the coating equipment 1000 forms a positive electrode sheet, the material of the current collector can be aluminum, and the active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganate. If the coating device 1000 forms a negative electrode sheet, the material of the current collector may be copper, and the active material may be carbon or silicon.
  • the substrate 3000 has an opposite first surface and a second surface, and the coating device 100 is used to coat the first surface and the second surface to form a coating on the first surface and the second surface .
  • the coating device 100 includes a first coating mechanism 110 and a second coating mechanism 120, the second coating mechanism 120 is arranged downstream of the first coating mechanism 110, and the first coating mechanism 110 is configured To coat the first side of the substrate 3000 , the second coating mechanism 120 is configured to coat the second side of the substrate 3000 .
  • the coating device 100 includes two first coating mechanisms 110 and second coating mechanisms 120 for coating the first surface and the second surface respectively, which can improve coating efficiency and further increase production efficiency.
  • the coating equipment 1000 comprises two drying devices 200, one of which is arranged downstream of the first coating mechanism 110 and upstream of the second coating mechanism 120 in the two drying devices 200, to The coating is dried, and the other of the two drying devices 200 is located downstream of the second coating mechanism 120 to dry the coating on the second side.
  • One of the two drying devices 200 is used to dry the coating on the first side of the substrate 3000, and the other is used to dry the coating on the second side of the substrate 3000, so as to increase the heating efficiency of the substrate 3000. Uniformity.
  • upstream and downstream refer to the sequence of production, upstream refers to the production sequence first, and downstream refers to the production sequence later.
  • upstream and downstream refers to the production sequence later.
  • the spatial positions between the components are not limited.
  • the coating equipment 1000 also includes an unwinding device 400, the unwinding device 400 is arranged upstream of the first coating mechanism 110, and the unwinding device 400 is used for automatically unwinding the substrate 3000 and transport.
  • the coating equipment 1000 further includes a first roller assembly 500 , the first roller assembly 500 is disposed downstream of the unwinding device 400 and upstream of the first coating mechanism 110 .
  • the first roller assembly 500 includes a plurality of first rollers 510 arranged in rotation, and the substrate 3000 is wound around the plurality of first rollers 510 in turn, and the first roller assembly 500 is used to support the substrate 3000 and realize the substrate 3000 transmission.
  • the position of the substrate 3000 may shift along the tape-running direction of the substrate 3000, causing the relative position of the substrate 3000 and the coating device 100 to shift, causing the coating device to 100 was not accurately coated on the substrate 3000.
  • the coating equipment 1000 also includes an unwinding and correcting device 600, which is arranged downstream of the unwinding device 400 and upstream of the first coating mechanism 110, and the unwinding and correcting device 600 can receive base material 3000 and adjust the position of the base material 3000 so that the base material 3000 can always be within the coating range of the first coating mechanism 110, thereby ensuring the coating of the first surface of the substrate 3000 by the first coating mechanism 110 cloth precision.
  • an unwinding and correcting device 600 which is arranged downstream of the unwinding device 400 and upstream of the first coating mechanism 110, and the unwinding and correcting device 600 can receive base material 3000 and adjust the position of the base material 3000 so that the base material 3000 can always be within the coating range of the first coating mechanism 110, thereby ensuring the coating of the first surface of the substrate 3000 by the first coating mechanism 110 cloth precision.
  • the position of the substrate 3000 may be shifted during the drying process of the first side and the second side of the substrate 3000 and the substrate 3000 may be wrinkled, resulting in the difference between the substrate 3000 and other substrates.
  • the relative position orientation of the device is shifted.
  • the coating equipment 1000 further includes a first outlet correction device 700, and the first exit correction device 700 is arranged downstream of the drying device 200 downstream of the first coating mechanism 110 and arranged at the second Upstream of the coating mechanism 120, the first outlet deviation correction device 700 can accept the substrate 3000 whose coating on the first side has been dried and adjust the position of the substrate 3000 so that the substrate 3000 can always be located in the second coating mechanism 120 within the coating range, so as to ensure the coating accuracy of the second coating mechanism 120 on the second surface of the substrate 3000.
  • the first outlet deviation correction device 700 can also flatten and remove wrinkles on the substrate 3000 coated on the first surface, so as to maintain the flatness of the coated substrate 3000 .
  • the coating equipment 1000 further includes a second exit deviation correction device 800, the second exit deviation correction device 800 is arranged downstream of the drying device 200 downstream of the second coating mechanism 120, and the second exit deviation correction device 800 can The substrate 3000 with the second side of the coating dried is received and the position of the substrate 3000 is adjusted.
  • the second outlet deflection correction device 800 can also flatten and remove wrinkles on the substrate 3000 coated on both the first surface and the second surface, so as to maintain the flatness of the coated substrate 3000 .
  • the coating equipment 1000 further includes a first traction device 900, the first traction device 900 is arranged downstream of the first outlet correction device 700 and upstream of the second coating mechanism 120, the first traction device 900 is used In order to pull the substrate 3000 from the first exit correction device 700 to the second coating mechanism 120, the first pulling device 900 is also used to form a tension partition between the first exit correction device 700 and the second coating mechanism 120, ensuring that the base Tension balance during material 3000 transmission.
  • the coating equipment 1000 further includes a second traction device 1100, the second traction device 1100 is arranged downstream of the second exit correction device 800, and the second traction device 1100 is used to draw the substrate from the second exit correction device 800.
  • the second pulling device 1100 is also used to form a tension partition between the second exit correction device 800 and the next station, so as to ensure the tension balance during the transfer of the substrate 3000.
  • the coating equipment 1000 also includes a first areal density measuring device 1200, the first areal density measuring device 1200 is arranged downstream of the first coating mechanism 110 and is located in the second coating mechanism Upstream of 120, the first areal density measuring device 1200 is used to realize real-time monitoring of the areal density of the coating on the first surface, and can communicate with the first coating mechanism 110 to realize closed-loop control of coating weight.
  • a first areal density measuring device 1200 the first areal density measuring device 1200 is arranged downstream of the first coating mechanism 110 and is located in the second coating mechanism Upstream of 120, the first areal density measuring device 1200 is used to realize real-time monitoring of the areal density of the coating on the first surface, and can communicate with the first coating mechanism 110 to realize closed-loop control of coating weight.
  • the first areal density measuring device 1200 may be arranged downstream of the first coating mechanism 110 and upstream of the drying device 200 for drying the coating on the first surface, so that the first areal density measuring device 1200 is used to detect the drying.
  • the first surface density measuring device 1200 may also be arranged downstream of the drying device 200 for drying the coating on the first surface and upstream of the second coating mechanism 120, so that the first surface density measuring device 1200 is used for detecting The areal density of the coating on the first side after drying.
  • the coating equipment 1000 also includes a second areal density measuring device 1300, the second areal density measuring device 1300 is arranged downstream of the second coating mechanism 120, and the second areal density measuring device 1300 is used to realize the second The areal density of the coating on the surface is monitored in real time, and can be communicated with the second coating mechanism 120 to realize closed-loop control of the coating weight.
  • the second areal density measuring device 1300 may be arranged downstream of the second coating mechanism 120 and upstream of the drying device 200 for drying the coating on the second surface, so that the second areal density measuring device 1300 is used to detect the drying.
  • the second surface density measuring device 1300 may also be arranged downstream of the drying device 200 for drying the coating on the second surface, so that the second surface density measuring device 1300 is used to detect the coating on the second surface after drying areal density.
  • the coating equipment 1000 also includes a head deviation correction device 1400, the device between the head deviation correction is arranged downstream of the first surface density measuring device 1200 and upstream of the second coating mechanism 120, and the head deviation correction
  • the device 1400 is used to adjust the position of the substrate 3000 before the second coating mechanism 120 coats the second surface of the substrate 3000.
  • it can be combined with a CCD (Charge-coupled Device, charge-coupled device) measurement system to realize basic Closed-loop control of material 3000 position adjustment.
  • CCD Charge-coupled Device, charge-coupled device
  • the coating equipment 1000 occupies a large area.
  • the coating The devices 1000 are arranged in two rows side by side. As shown in FIG. 2 , the devices upstream of the second coating mechanism 120 are arranged in the lower row, and the devices downstream of the second coating mechanism 120 are arranged in the upper row.
  • the coating equipment 1000 also includes a climbing device 1500, the climbing device 1500 is arranged downstream of the second coating mechanism 120 and is arranged on the substrate 3000 for The coating of the second side is dried upstream of the drying device 200 .
  • the climbing device 1500 is used to support the substrate 3000 and pull the substrate 3000 from the second coating mechanism 120 to the drying device 200 for drying the coating on the second surface, so that the substrate 3000 can smoothly move from the second
  • the coating mechanism 120 is sent to the drying device 200 for drying the coating on the second surface.
  • the coating equipment 1000 further includes a heating device 1600, the heating device 1600 is arranged downstream of the drying device 200 located downstream of the second coating mechanism 120, and the heating device 1600 is configured to The coating on the surface is dried.
  • the heating device 1600 can dry the coating on the second side for the second time, so that the drying degree of the coating on the first side and the coating on the second side tends to be consistent, and reduce the drying rate of the coating on the first side and the coating on the second side. The drying difference of the coating on the two sides.
  • the heating device 1600 is arranged downstream of the second pulling device 1100, and the second pulling device 1100 is used to pull the substrate 3000 from the second exit deflection correction device 800 to the heating device 1600, so that the heating device 1600 is opposite to the second The surface coating is subjected to secondary drying.
  • the coating equipment 1000 also includes a cooling traction device 1700, which is arranged downstream of the heating device 1600, and carries out traction transport and cooling of the substrate 3000 dried by the heating device 1600 to ensure that the coating Coated substrate 3000 was delivered without wrinkling.
  • a cooling traction device 1700 which is arranged downstream of the heating device 1600, and carries out traction transport and cooling of the substrate 3000 dried by the heating device 1600 to ensure that the coating Coated substrate 3000 was delivered without wrinkling.
  • the coating equipment 1000 further includes a third areal density measurement device (not shown in the figure), and the third areal density measurement The device is arranged downstream of the heating device 1600, and the third surface density measuring device is used to realize real-time monitoring of the surface density of the coating on the second surface after secondary drying, and can communicate with the second coating mechanism 120 to realize coating Closed loop control of weight.
  • the case where the second areal density measuring device 1300 is arranged upstream of the heating device 1600 includes: the second areal density measuring device 1300 is arranged downstream of the drying device 200 for drying the coating on the second surface of the substrate 3000 And located upstream of the heating device 1600 or the second areal density measuring device 1300 is located upstream of the drying device 200 for drying the coating on the second surface of the substrate 3000 and located downstream of the second coating mechanism 120 .
  • coating equipment 1000 also can not be provided with the 3rd areal density measuring device, the 2nd areal density measuring device 1300 is arranged on the downstream of the heating device 1600, the 2nd areal density measuring device 1300 uses In order to realize the real-time monitoring of the areal density of the coating on the second surface after the secondary drying, it can communicate with the second coating mechanism 120 to realize the closed-loop control of the coating weight.
  • the coating equipment 1000 also includes a winding device 1900, the winding device 1900 is arranged downstream of the second surface density measuring device 1300, and the winding device 1900 is used for both the first surface and the second surface to be coated with Coated substrate 3000 for automatic winding and automatic roll changing.
  • the coating equipment 1000 further includes a winding and deviation correcting device 2000, which is arranged downstream of the second surface density measuring device 1300, and the winding and deviation correcting device 2000 is used to wind the base of the winding device 1900 Adjust the position of the base material 3000 before the base material 3000.
  • a winding and deviation correcting device 2000 which is arranged downstream of the second surface density measuring device 1300, and the winding and deviation correcting device 2000 is used to wind the base of the winding device 1900 Adjust the position of the base material 3000 before the base material 3000.
  • the drying device 200 includes a drying chamber 20 and a heating assembly 21 .
  • the drying chamber 20 is used to accommodate the pieces to be dried.
  • the drying chamber 20 has a first drying side 201 facing the pieces to be dried.
  • the heating assembly 21 is arranged on the first drying side 201, and the heating assembly 21 is configured to dry the article to be dried.
  • the first drying side 201 is also provided with a return air part 23, and at least one return air part 23 is provided between two adjacent first air inlet parts 22, and the return air part 23 is configured to supply the drying chamber 20
  • the fluid medium inside is discharged from the drying chamber 20.
  • the fluid medium is gas, such as external air, protective gas, and the like.
  • At least one air return portion 23 is arranged between two adjacent first air inlet portions 22 , and as shown in FIG. 2 , one air return portion 23 is arranged between two adjacent first air inlet portions 22 . In some other embodiments, two or more other numbers of return air portions 23 may be arranged between two adjacent first air inlet portions 22 .
  • the air return part 23 can discharge the fluid medium in the drying chamber 20 out of the drying chamber 20.
  • the fluid medium acts on the drying chamber 20.
  • the pieces to be dried are guided between the two first air inlets 22, so that the heat carried by the fluid medium converges between the two first air inlets 22, resulting in two adjacent first air inlets 22 is overheated, so that the parts to be dried are heated unevenly, and the return air part 23 is arranged between the two first air inlet parts 22, so that the air between the two first air inlet parts 22
  • the fluid medium discharges and takes away the heat, avoiding the accumulation of heat between the two first air inlets 22, and improving the heating uniformity of the article to be dried.
  • the first air inlet portion 22 may be a tuyere, an air supply port, etc., and the return air portion 23 may be a tuyere, an air exhaust port, and the like. When the first air inlet 22 is a tuyere, the first air inlet 22 may extend into the drying chamber 20 to reduce the distance from the substrate 3000 .
  • the first drying side 201 of the drying chamber 20 is located on one side in the thickness direction of the substrate 3000 , and a plurality of first air inlets 22 are arranged at intervals on the first air inlet side.
  • the air return portion 23 is arranged in the middle of the two adjacent first air inlets 22, in other words , the distance between one of the two first air inlet parts 22 and the return air part 23 is equal to the distance between the other of the two first air inlet parts 22 and the return air part 23, which is beneficial to improve The heat distribution in the drying chamber 20 is uniform.
  • At least one heating assembly 21 is arranged between two adjacent first air inlets 22 .
  • the first air inlet part 22 supplies the fluid medium to the drying chamber 20, it can bring the heat of the heating assembly 21 to various positions of the drying chamber 20 along with the flow of the fluid medium, so as to improve the uniformity of heat distribution, thereby improving the Heating uniformity of drying parts.
  • the drying device 200 includes a first wall 241 facing the article to be dried in the first direction A, and the first air inlet 22 , the heating assembly 21 and the air return 23 are all arranged on the first wall 241 , the first air inlet portion 22 , the heating assembly 21 and the air return portion 23 are all disposed on the side of the first wall 241 facing the drying chamber 20 .
  • the drying device 200 further includes a first driving unit 25 configured to adjust the distance in the first direction A between the first wall 241 and the piece to be dried.
  • the first driving unit 25 can drive the first wall 241 provided with the first air inlet part 22, the heating assembly 21 and the air return part 23 to move, so as to adjust the relationship between the first wall 241 and the article to be dried in the first direction A. distance, so as to adjust the distance between the heating assembly 21 and the piece to be dried, so as to meet different heating requirements and improve the heating quality.
  • the structure related to the coating equipment 1000 is introduced by taking the coating on the surface of the drying substrate 3000 as an example. Therefore, the substrate to be dried with a coating on the surface material 3000, in other embodiments, the piece to be dried can also be of other structures.
  • the first drive unit 25 can be a linear drive mechanism such as an adjusting screw, a linear motor, or a cylinder.
  • the first drive unit 25 drives the first wall 241 to reciprocate along the first direction A so that the first wall 241 approaches or moves away from the substrate 3000, thereby Make the first air inlet part 22 , the heating assembly 21 and the air return part 23 close to or away from the substrate 3000 .
  • the first driving unit 25 can be arranged in multiples at intervals, so as to be able to adjust the distance between the first wall 241 and the substrate 3000 along the first direction A from multiple positions, especially in the length direction of the first wall 241 and/or Or when the dimension in the width direction is large, the first wall 241 is driven to move along the first direction A by a plurality of first driving units 25, so that each position in the length direction and/or width direction of the first wall 241 can be compared with the base
  • the distances in the first direction A of the material 3000 are the same, and the distance difference between each position of the substrate 3000 and the first air inlet part 22, the heating assembly 21 and the return air part 23 in the first direction A is reduced, and the heating uniformity is improved. Thereby improving product quality.
  • the drying device 200 further includes a first air inlet chamber 242, the first air inlet chamber 242 is separated from the drying chamber 20 by the first wall 241, the first air inlet part 22, the heating assembly 21 and the return air
  • the air parts 23 are all disposed on the first wall 241 ; wherein, the first air inlet part 22 is used for the fluid medium in the first air inlet chamber 242 to enter the drying chamber 20 .
  • the fluid medium enters the first air inlet chamber 242
  • it enters the drying chamber 20 from a plurality of first air inlet parts 22, so that the fluid medium can be more evenly distributed in the drying chamber 20, thereby improving the uniform heating of the pieces to be dried. sex.
  • the first air inlet chamber 242 shares the first wall 241 with the drying chamber 20 and is separated by the first wall 241 , which can reduce the volume of the drying device 200 .
  • the drying device 200 also includes an outer box 26 , and the drying chamber 20 and the first air inlet chamber 242 are both disposed in the outer box 26 .
  • the drying device 200 includes a first air box 24, the inside of the first air box 24 forms a first air inlet chamber 242, and the first air box 24 includes a first wall 241 and a first box body 243 with a first opening. , the first wall 241 covers the first opening so that the first wall 241 and the first box body 243 jointly define the first air inlet chamber 242 .
  • the first air intake chamber 242 communicates with the inside of the outer case 26 through the first air intake portion 22.
  • the first driving unit 25 is mounted on the outer case 26 , and the first driving unit 25 moves the first wall 241 along the first direction A by driving the first bellows 24 to move along the first direction A inside the outer case 26 .
  • the first air box 24 is also provided with a first air supply port 244, the first air supply port 244 communicates with the first air intake chamber 242, and provides fluid medium to the first air intake chamber 242 through the first air supply port 244, and enters the first air intake chamber The fluid medium in 242 enters the drying chamber 20 through the first air inlet portion 22 .
  • the first air inlet chamber 242 and the drying chamber 20 can also be formed in other forms, for example, the first air inlet chamber 242 can be defined by the surface of the first wall 241 facing away from the article to be dried and the inner wall of the outer box 26. Both ends of the first wall 241 are slidably disposed on the outer box 26 , the first driving unit 25 is installed on the outer box 26 , and the first driving unit 25 drives the first wall 241 to slide relative to the outer box 26 along the first direction A.
  • the surface of the first wall 241 facing the substrate 3000 and the inner wall of the outer box 26 jointly define the drying chamber 20, and the first driving unit 25 drives the first wall 241 to move along the first direction A, which not only can adjust the first wall 241 and the substrate.
  • the distance between the material 3000 can also adjust the size of the first air inlet chamber 242 and the drying chamber 20.
  • the drying chamber 20 gradually increases.
  • the drying chamber 20 gradually increases.
  • the drying chamber 20 gradually decreases.
  • the drying chamber 20 also has a second drying side 202 arranged opposite to the first drying side 201 in the first direction A, and the second drying side 202 is provided with a fluid medium entering the drying chamber 20 A plurality of second air inlets 27.
  • the second air inlet part 27 can make the fluid medium enter the drying chamber 20 from the second drying side 202 of the drying chamber 20, and can accelerate the flow of the fluid medium in the drying chamber 20, thereby accelerating the heat transfer in the drying chamber 20. flow, so that the heat is evenly distributed in the drying chamber 20, and the heating uniformity of the pieces to be dried is improved.
  • the second drying side 202 is located on the side of the substrate 3000 away from the first drying side 201 .
  • the second air inlet portion 27 may be an air nozzle, an air supply port, and the like. When the second air inlet 27 is a tuyere, the second air inlet 27 can extend into the drying chamber 20 to reduce the distance from the substrate 3000 .
  • the drying device 200 includes a first wall 241 facing the article to be dried in the first direction A and a second wall 281 opposite to the first wall 241; the first air inlet 22, the heating assembly 21 and the return air part 23 are both arranged on the first wall 241, and the second air inlet part 27 is arranged on the second wall 281; the drying chamber 20 is located between the first wall 241 and the second wall 281 in the first direction A;
  • the dry device 200 further includes a second driving unit 29 configured to drive the second wall 281 to move to adjust the distance between the second wall 281 and the first wall 241 in the first direction A.
  • the second driving unit 29 can drive the second wall 281 to move to adjust the distance between the second wall 281 and the first wall 241 in the first direction A, so as to adapt to the items to be dried along the first direction A with different sizes.
  • the second drive unit 29 can be a linear drive mechanism such as an adjusting screw, a linear motor, or an air cylinder.
  • the second drive unit 29 drives the second wall 281 to reciprocate along the first direction A so that the second wall 281 approaches or moves away from the substrate 3000 or the second wall 281.
  • a wall 241 so as to adjust the distance between the second air inlet portion 27 and the substrate 3000 or the distance between the second wall 281 and the first wall 241 .
  • the second driving unit 29 can be arranged in multiples at intervals, so as to be able to adjust the second wall 281 along the first direction A from multiple positions, especially in the size of the second wall 281 in the length direction and/or width direction.
  • each position in the length direction and/or width direction of the second wall 281 can be aligned with the position of the substrate 3000 in the first direction A.
  • the distances are the same, reducing the distance difference between each position of the base material 3000 and the second air inlet portion 27 in the first direction A, improving heating uniformity, and thus improving product quality.
  • the drying device 200 includes a second wind box 28, the inside of the second wind box 28 forms a second air inlet chamber 282, and the second wind box 28 includes a second wall 281 and a second box body 283 with a second opening.
  • the second wall 281 covers the second opening so that the second wall 281 and the second box body 283 jointly define a second air inlet chamber 282 .
  • the second air inlet chamber 282 communicates with the inner space of the outer box 26 through the second air inlet portion 27 .
  • the second driving unit 29 is mounted on the outer case 26 , and the second driving unit 29 moves the second wall 281 along the first direction A by driving the second bellows 28 to move along the first direction A inside the outer case 26 .
  • the second air box 28 is also provided with a second air supply port 284, the second air supply port 284 communicates with the second air intake chamber 282, and the second air intake chamber 282 provides fluid medium through the second air supply port 284, and enters the second air intake chamber 282 The fluid medium inside enters the drying chamber 20 through the second air inlet portion 27 .
  • the second air inlet chamber 282 can also be formed in other forms.
  • the second air inlet chamber 282 can be formed by the surface of the second wall 281 away from the article to be dried and the inner wall of the outer box 26.
  • the second wall 281 Both ends of the two sides are slidably arranged on the outer box 26 along the first direction A, and the second driving unit 29 is mounted on the outer box 26, and the second driving unit 29 drives the second wall 281 to slide relative to the outer box 26 along the first direction A.
  • the first drive unit 25 drives the second wall 281 to move along the first direction A, not only the distance between the second wall 281 and the substrate 3000 can be adjusted, but also the size of the second air inlet chamber 282 and the drying chamber 20 can be adjusted.
  • the drying chamber 20 gradually increases; on the contrary, when the second air inlet chamber 282 gradually increases, the drying chamber 20 gradually decreases.
  • Outer case 26 is also provided with the first inlet 262 that passes in outer case 26 for base material 3000 and the first outlet 263 that passes outer case 26 for base material 3000, and first inlet 262 and first outlet 263 are all connected with outer case. 26 internally communicates, and the substrate 3000 passes through the outer box 26 from the first inlet 262 and passes out of the outer box 26 from the first outlet 263 , the heating assembly 21 dries the coating on the substrate 3000 .
  • the drying device 200 may only include the first air inlet chamber 242 and the drying chamber 20 .
  • the fluid medium needs to be preheated before entering the drying chamber 20, avoid the temperature difference between the fluid medium entering the drying chamber 20 from the first air inlet portion 22 and the second air inlet portion 27 and the fluid medium in the drying chamber 20 If it is too large, the drying temperature in the drying chamber 20 will be greatly affected.
  • the drying device 200 further includes a return air chamber 30 and a circulation unit 31 , the return air chamber 30 is configured to accommodate the fluid medium discharged from the return air part 23 , and the circulation unit 31 is configured to turn the return air chamber 30 The fluid medium inside is introduced into the first air inlet chamber 242 .
  • the fluid medium discharged from the return air part 23 can be accommodated in the return air chamber 30, and then enters the first air inlet chamber 242 under the action of the circulation unit 31, so that it can enter the drying chamber 20 through the first air inlet part 22, and can The heat generated by the heating component 21 in the drying chamber 20 is recycled to reduce energy consumption.
  • the direction of the solid arrow in Fig. 4 is that the fluid medium entering the drying chamber 20 from the first air inlet part 22 acts on the substrate 3000 in turn, the return air part 23 finally passes through the return air chamber 30 and passes through the first air inlet on the outer case 26.
  • Exhaust outlet 264 exhaust flow path.
  • the direction of the hollow arrow is the path through which the fluid medium in the outer box 26 is directly discharged through the first air outlet 264 .
  • the outer box 26 is also provided with a first air outlet 264 communicating with the inside of the outer box 26, and the drying device 200 also includes a first exhaust unit 32, and the first exhaust unit 32 is used to discharge the outer box.
  • the fluid medium in the outer box 26 is discharged from the first air outlet 264.
  • the first exhaust unit 32 discharging the fluid medium in the outer box 26
  • the fluid medium discharges the solvent that carries the coating of the substrate 3000 and evaporates. Reduce weight loss.
  • the return air chamber 30 is jointly defined by the outer wall of the first box 243 , the outer wall of the second box 283 and the inner wall of the outer box 26 .
  • the return air chamber 30 communicates with the drying chamber 20, and the fluid medium in the drying chamber 20 can directly enter the return air chamber 30, or enter the return air chamber 30 through the return air part 23, and the fluid medium in the return air chamber 30 Driven by the circulation unit 31 , it enters the first air inlet chamber 242 and/or the second air inlet chamber 282 .
  • the circulation unit 31 can make the fluid medium in the return air chamber 30 be discharged through the first air outlet 264 and then introduced into the drying chamber 20 through the first air inlet 22 .
  • the drying device 200 also includes a first fresh air port 33, and the circulation unit 31 draws fresh air from the outside through the first fresh air port 33, and sends the fresh air from the first air supply port 244 and the second The air supply port 284 feeds into the first air inlet chamber 242 and the second air inlet chamber 282 .
  • the drying device 200 further includes a first preheating component 35, and the fresh air passes through the first preheating component 35 before being sent into the first air inlet chamber 242 and the second air inlet chamber 282 by the circulation unit 31.
  • the preheating component 35 preheats the fresh air, so as to prevent the temperature difference between the fresh air and the fluid medium in the drying chamber 20 from being too large, which will greatly affect the drying temperature in the drying chamber 20 .
  • the drying device 200 further includes a filter mechanism 36 for filtering the fluid medium before the fluid medium enters the first air inlet chamber 242 and the second air inlet chamber 282 , that is, the fluid medium enters the first air inlet chamber 242 and the second air inlet chamber 282 after passing through the filter mechanism 36, so as to ensure the cleanliness of the fluid medium entering the first air inlet chamber 242 and the second air inlet chamber 282.
  • a filter mechanism 36 for filtering the fluid medium before the fluid medium enters the first air inlet chamber 242 and the second air inlet chamber 282 , that is, the fluid medium enters the first air inlet chamber 242 and the second air inlet chamber 282 after passing through the filter mechanism 36, so as to ensure the cleanliness of the fluid medium entering the first air inlet chamber 242 and the second air inlet chamber 282.
  • the heating assembly 21 includes a mounting frame 211 and a heating unit 213, and the mounting frame 211 is arranged on the first drying side 201, so that the heat generated by the heating unit 213 reaches the substrate
  • the 3000 has a shorter path, reducing heat loss.
  • the heating unit 213 may be a heating resistance wire, an infrared lamp or the like. Taking the heating unit 213 as an infrared lamp as an example, the mounting frame 211 is provided with a fixing groove 212 , the notch of the fixing groove 212 faces the substrate 3000 , and the infrared lamp is clamped in the fixing groove 212 .
  • the heating assembly 21 further includes a protection member 214 disposed on the installation frame 211 and surrounding the outer periphery of the heating unit 213 .
  • the setting of the protective member 214 can separate the heating unit 213 from the article to be dried, avoiding the direct contact between the article to be dried and the heating unit 213 and damaging the article to be dried, thus playing the role of safety protection.
  • the protective piece 214 can be connected with the installation frame 211 by a quick buckle structure, which can be quickly disassembled and is convenient for installation or replacement.
  • the protective member 214 can also be installed on the mounting frame 211 by means of bolts, screws, welding or the like.
  • Protector 214 can adopt stainless steel net, promptly has stronger heat resistance, also can not influence the heat transfer of heating unit 213.
  • the drying device 200 includes a blowing part 37 configured to provide a fluid medium to the heating component 21 to adjust the temperature of the heating component 21 .
  • the blowing part 37 can provide the fluid medium to the heating component 21 to adjust the temperature of the heating component 21.
  • the blowing part 37 can increase the cold air to the heating component 21 to cool down the heating component 21, which can increase the life of the heating component 21.
  • the blowing part 37 is arranged on the mounting frame 211, so that the blowing part 37 is arranged close to the heating unit 213, and the fluid medium entering from the blowing part 37 can act on the heating unit 213 directly or through a short distance, reducing the amount of heat generated by the blowing part 37.
  • the air blowing part 37 includes a slit-type air nozzle, allowing air to pass through to reach the heating component 21 so as to cool down the heating component 21 .
  • the fluid medium entering from the blowing part 37 and passing through the heating unit 213 can be heated by the heating unit 213 , that is to reduce the temperature of the heating unit 213 and accelerate the air flow and heat diffusion in the drying chamber 20 .
  • the air outlet of the blowing part 37 faces the heating unit 213, so that the fluid medium blown out from the blowing part 37 can directly act on the heating unit 213 and be heated, reducing the diffusion of the fluid medium blown out from the blowing part 37 in the drying chamber 20 without being heated. possibility.
  • the heating device 1600 includes a heating box 1610, a drying assembly 1620 and a plurality of driving rollers 1630, and the drying assembly 1620 and the plurality of driving rollers 1630 are all arranged in the heating box 1610;
  • a driving roller 1630 is used to convey the substrate 3000, and the substrate 3000 forms a conveying section 3100 between two adjacent driving rollers 1630;
  • the drying assembly 1620 is arranged between adjacent and opposite two conveying sections 3100 and faces
  • the second surface of the substrate 3000 is set so that the drying component 1620 can dry the coating on the second surface of the substrate 3000 .
  • a plurality of transmission rollers 1630 are arranged in the heating box 1610, which can increase the conveying distance of the substrate 3000 in the heating box 1610, prolong the transmission time of the substrate 3000 in the heating box 1610, and thus prolong the drying time.
  • part of the plurality of driving rollers 1630 is the first driving roller 1631
  • another part of the plurality of driving rollers 1630 is the second driving roller 1632
  • the number of the first driving rollers 1631 is multiple
  • a plurality of first transmission rollers 1631 and a plurality of second transmission rollers 1632 are arranged at intervals along the second direction B
  • a plurality of first transmission rollers 1631 are arranged in a row along the third direction C
  • a plurality of second transmission rollers 1632 are arranged in a row along the second direction B are arranged in a row
  • the second direction B is perpendicular to the third direction C.
  • the substrate 3000 is wound around the first driving roller 1631 and the second driving roller 1632 sequentially along its conveying direction, and the substrate 3000 forms a conveying section 3100 between two adjacent first driving rollers 1631 and second driving rollers 1632 .
  • the substrate 3000 is divided into a plurality of conveying sections 3100 arranged at intervals, at least one drying assembly 1620 is set between two adjacent conveying sections 3100, and the drying assembly 1620 can simultaneously dry adjacent
  • the coating on the second surface of the two conveying sections 3100 can be heated to improve the heating efficiency.
  • the heating device 1600 includes a plurality of drying components 1620, which are arranged at intervals in the heating box 1610 along the conveying direction of the substrate 3000, which can improve the drying quality and drying efficiency.
  • the heating power of the heating device 1600 can be less than that of any one of the drying devices 200, so as to reduce the heat of the heating device 1600 when the heating device 1600 performs secondary drying on the coating on the second surface. Effect on the coating on the first side.
  • the heating power of the two drying devices 200 can be the same or different, and the drying device 200 with the corresponding power can be selected according to the thickness of the coating on the first surface and the coating on the second surface, and the drying degree requirements.
  • the heating box 1610 is also provided with an air supply part 1611 for the fluid medium to enter the heating box 1610 and an exhaust part 1612 for the fluid medium in the heating box 1610 to be discharged;
  • the heating device 1600 also includes a circulation assembly 1640, and the circulation assembly 1640 is configured In order to guide the fluid medium discharged from the exhaust part 1612 into the heating box 1610 from the air supply part 1611, so as to make full use of the heat generated by the drying assembly 1620 and reduce energy consumption.
  • the heating box 1610 is further provided with a second inlet 1613 for passing the substrate 3000 into the heating box 1610 and a second outlet 1614 for passing the substrate 3000 out of the heating box 1610 .
  • the drying component 1620 dries the coating on the second surface of the substrate 3000 .
  • Coating equipment 1000 also includes import roller 2100 and export roller 2200, and import roller 2100 is arranged at second entrance 1613, and introduction roller 2100 is configured to import substrate 3000 from second inlet 1613 into heating box 1610, so that substrate 3000 From the previous station of the heating device 1600 (such as the second pulling device 1100 ) to the heating device 1600 smoothly and smoothly.
  • the lead-out roller 2200 is arranged at the second exit 1614, and the lead-out roller 2200 is configured to lead the substrate 3000 out of the heating box 1610 from the second exit 1614, so that the substrate 3000 is smoothly transferred from the heating device 1600 to the next station (such as cooling puller 1700).
  • the lead-in roller 2100 and the lead-out roller 2200 are both arranged on the outer wall of the heating box 1610, so that the substrate 3000 can smoothly enter the heating box 1610 and move out of the heating box 1610, and reduce the heating time of the substrate 3000 when entering the heating box 1610 and moving out of the heating box 1610. There is a risk of scratching the box 1610 and damaging the substrate 3000.
  • only one of the lead-in roller 2100 and the lead-out roller 2200 is set in the heating box 1610, and the other can be set in a device corresponding to another station, for example, the lead-in roll 2100 is set in the heating box 1610, and the lead-out roll 2200
  • a cooling traction device 1700 may be provided downstream of the heating device 1600 .
  • the heating device 1600 further includes a filter assembly 1650, the filter assembly 1650 is arranged at the air inlet, and the filter assembly 1650 is configured to filter the fluid medium entering the heating box 1610 from the air inlet to ensure that it enters the heating box Clean the fluid medium in 1610, so as to ensure the safety and quality of heating and drying.
  • the filtering component 1650 may be a structure such as a filter net.
  • the heating device 1600 further includes a second fresh air outlet 1670 , and the circulation component 1640 draws fresh air from the outside through the second fresh air outlet 1670 , and guides the fresh air into the heating box 1610 from the air supply part 1611 .
  • the heating device 1600 further includes a second preheating component 1660, the second preheating component 1660 is disposed on the air supply part 1611, and the preheating component is configured to perform heating on the fluid medium entering the heating box 1610 from the air supply part 1611. Preheating, especially the fresh air extracted from the second fresh air outlet 1670, to avoid the temperature of the fluid medium entering the heating box 1610 from the air supply part 1611 being too low, thereby reducing the temperature in the heating box 1610 and affecting the heating device 1600 The coating on the second side of the substrate 3000 is dried.
  • the second preheating component 1660 is arranged downstream of the filter component 1650 , that is, the fresh air is firstly filtered by the filter component 1650 and then preheated by the second preheating component 1660 .
  • the heating box 1610 is also provided with a second air exhaust port 1615 communicating with the inner space of the heating box 1610, and the heating device 1600 also includes a second exhaust unit 1680, and the second exhaust unit 1680 is used to discharge the heating box
  • the fluid medium in 1610 is exhausted from the second air exhaust port 1615.
  • the fluid medium discharges the solvent that carries the coating of the substrate 3000 and evaporates. Reduce weight loss.
  • the cooling traction device 1700 includes a cooling box 1710, a cooling part 1720 and a plurality of traction rollers 1730, and the cooling part 1720 and a plurality of traction rollers 1730 are all arranged in the cooling box 1710, and the cooling part 1720 is configured to provide a fluid medium to substrate 3000 to regulate the temperature of substrate 3000 .
  • the plurality of pulling rollers 1730 are configured to sequentially wind the substrate 3000 along its moving direction to transport the substrate 3000 .
  • the cooling traction device 1700 further includes a tension adjustment mechanism 1740, the tension adjustment mechanism 1740 is disposed in the cooling box 1710, the tension adjustment mechanism 1740 is configured to adjust the tension of the substrate 3000, so that the tension of the substrate 3000 is balanced, Ensure that the substrate 3000 is transported smoothly.
  • the cooling traction device 1700 further includes a tension sensor 1780, the tension sensor 1780 is arranged in the cooling box 1710, the tension sensor 1780 is used to detect the tension of the substrate 3000, and the tension adjustment mechanism 1740 obtains the substrate according to the tension sensor 1780 3000 tension signal to adjust the tension of the substrate 3000 so that the tension of the substrate 3000 is balanced and stable transmission can be achieved.
  • the cooling traction device 1700 further includes a tension breaking mechanism 1790 configured to cooperate with one traction roller 1730 of the plurality of traction rollers 1730 to compress the substrate 3000 so as to move along the transport of the substrate 3000. direction, the substrate 3000 located on both sides of the tension breaking mechanism 1790 can form different tensions to meet the requirement of smooth transmission.
  • the tension breaking mechanism 1790 includes a pressure roller 1791 and a pressure roller driving unit 1792.
  • the pressure roller driving unit 1792 drives the pressure roller 1791 to move in the cooling box 1710 to adjust the peripheral surface of the pressure roller 1791 and the traction roller 1730 that cooperates with the tension breaking mechanism 1790
  • the distance between the peripheral surfaces of the substrate 3000 is adjusted to adjust the degree of compression of the pressing roller 1791 and the traction roller 1730 to the substrate 3000, thereby adjusting the friction between the substrate 3000 and the traction roller 1730 so that the substrate 3000 is located at the tension barrier
  • the substrate 3000 on either side of the mechanism 1790 can have different tensions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Textile Engineering (AREA)
  • Microbiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

本申请提供了一种烘干装置及涂布设备，涉及电池技术领域。一种烘干装置包括烘干室和加热组件。烘干室用于容纳待烘干件，烘干室具有面向待烘干件的第一烘干侧，第一烘干侧设有供流体介质进入烘干室的多个第一进风部。加热组件设置于第一烘干侧，加热组件被配置为烘干待烘干件。第一烘干侧还设有回风部，相邻的两个第一进风部之间设有至少一个回风部，回风部被配置为供烘干室内的流体介质排出烘干室。回风部设置在两个第一进风部之间能够将两个第一进风部之间的流体介质排出并带走热量，避免热量在两个第一进风部之间汇集，提高待烘干件的加热均匀性。

Description

烘干装置及涂布设备
相关申请的交叉引用
本申请本申请要求享有于2021年07月30日提交的名称为“烘干装置及涂布设备”的中国专利申请202110876189.0的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及电池技术领域，具体而言，涉及一种烘干装置及涂布设备。
背景技术
随着锂离子电池在通讯领域、便携式电子产品、电动汽车、航天航空、船舶等应用及逐渐普及，对电池的高续航里程及安全性能的要求愈发强烈，对锂离子动力电池极片涂布工艺也提出了更高的要求，尤其是在对极片的烘干环节，直接影响极片的成型质量。
因此，如何提高对极片的烘干质量成为电池领域亟待解决的问题。
发明内容
本申请实施例提供一种烘干装置及涂布设备，以提高极片的烘干质量。
第一方面，本申请实施例提供一种烘干装置，包括烘干室和加热组件。所述烘干室用于容纳待烘干件，所述烘干室具有面向所述待烘干件的第一烘干侧，所述第一烘干侧设有供流体介质进入所述烘干室的多个第一进风部。所述加热组件设置于所述第一烘干侧，所述加热组件被配置为烘干所述待烘干件。其中，所述第一烘干侧还设有回风部，相邻的两个第一进风部之间设有至少一个回风部，所述回风部被配置为供所述烘干室内的流体介质排出所述烘干室。
上述技术方案中，相邻的两个第一进风部之间设置至少一个回风部，回风部能够将烘干室内的流体介质排出烘干室，当从相邻的两个第一进风部向烘干室内提供流体介质，流体介质作用于待烘干件后被待烘干件向两个第一进风部之间引导，使得流体介质携带的热量在两个第一进风部之间汇聚，造成相邻的两个第一进风部之间对应的部分被过度加热，使得待烘干件各处加热不均，回风部设置在两个第一进风部之间能够将两个第一进风部之间的流体介质排出并带走热量，避免热量在两个第一进风部之间汇集，提高待烘干件的加热均匀性。
在本申请第一方面的一些实施例中，所述烘干装置包括在第一方向上面向所述待烘干件的第一壁，所述第一进风部、所述加热组件和所述回风部均设置于所述第一壁；所述烘干装置还包括第一驱动单元，所述第一驱动单元被配置为调节所述第一壁与所述待烘干件在所述第一方向的距离。
上述技术方案中，第一驱动单元能够驱动设置了第一进风部、加热组件和回风部的第一壁移动，以调节第一壁与待烘干件与在第一方向上的距离，从而调节加热组件与待烘干件之间的距离，以满足不同的加热需求，提高加热质量。
在本申请第一方面的一些实施例中，所述烘干装置还包括第一进风室，所述第一进风室与所述烘干室通过第一壁隔开，所述第一进风部、所述加热组件和所述回风部均设置于所述第一壁；其中，所述第一进风部用于供所述第一进风室内的流体介质进入所述烘干室。
上述技术方案中，烘干装置还包括第一进风室，流体介质进入第一进风室后从多个第一进风部进入烘干室，使得流体介质能够被较为均匀地分布在烘干室内，从而提高待烘干件的加热均匀性。第一进风室与烘干室共用第一壁并通过第一壁隔开，能够减小烘干装置的体积。
在本申请第一方面的一些实施例中，所述烘干装置还包括回风室和循环单元，所述回风室被配置为容纳从所述回风部排出的流体介质，所述循环单元被配置为将所述回风室内的流体介质导入所述第一进风室。
上述技术方案中，从回风部排出的流体介质能够容纳于回风室，再在循环单元的作用下进入第一进风室，从而能够经过第一进风部进入烘干室内，能够循环利用烘干室内加热组件产生的热量，减少能耗。
在本申请第一方面的一些实施例中，所述烘干室还具有在第一方向与所述第一烘干侧相对布置的第二烘干侧，所述第二烘干侧设有供流体介质进入所述烘干室的多个第二进风部。
上述技术方案中，第一进风部能够使流体介质从烘干室的第二烘干侧进入烘干室，能够加快烘干室内的流体介质的流动，从而加快热量在烘干室内流动，以使热量在烘干室内均匀分布，提高待烘干件的加热均匀性。
在本申请第一方面的一些实施例中，所述烘干装置包括在所述第一方向上面向所述待烘干件的第一壁和与所述第一壁相对布置的第二壁；所述第一进风部、所述加热组件和所述回风部均设置于所述第一壁，所述第二进风部设置于所述第二壁；所述烘干室在所述第一方向位于所述第一壁和所述第二壁之间；所述烘干装置还包括第二驱动单元，所述第二驱动单元被配置为驱动所述第二壁移动以调节所述第二壁与所述第一壁在所述第一方向上的距离。
上述技术方案中，第二驱动单元能够驱动第二壁移动以调节第二壁与第一壁在第一方向上的距离，以适应沿第一方向不同尺寸的待烘干件。
在本申请第一方面的一些实施例中，相邻的两个第一进风部之间设置至少一个加热组件。
上述技术方案中，相邻的两个第一进风部之间设置至少一个加热组件，使得第一进风部在向烘干室内提供流体介质时能够随着流体介质的流动将加热组件的热量带至烘干室的各个位置，提高热量分布均匀性，从而提高待烘干件的加热均匀性。
在本申请第一方面的一些实施例中，所述烘干装置包括吹风部，所述吹风部被配置为向所述加热组件提供流体介质，以调节所述加热组件的温度。
上述技术方案中，吹风部能够向加热组件提供流体介质，以调节加热组件的温度，比如吹风部向加热组件提高冷气，以对加热组件冷却降温，可提高加热组件的寿命。
在本申请第一方面的一些实施例中，所述加热组件包括安装架和加热单元，所述安装架设置于所述第一烘干侧，所述加热单元和所述吹风部均设置于所述安装架。
上述技术方案中，加热单元和吹风部均设置于安装架，使得吹风部靠近加热单元设置，从吹风部进入的流体介质能够直接或者经过较短的距离即可作用于加热单元，减小吹风部提供的流体介质对烘干室内的温度的影响。
在本申请第一方面的一些实施例中，所述加热组件还包括防护件，所述防护件设置于所述安装架并围设于所述加热单元的外周。
上述技术方案中，防护件的设置能够将加热单元和待烘干件隔开，避免待烘干件与加热单元直接接触而损伤待烘干件。
在本申请第一方面的一些实施例中，所述两个第一进风部中的一者与所述回风部之间的距离和所述两个第一进风部中的另一者与所述回风部之间的距离相等。
上述技术方案中，回风部设置相邻的两个第一进风部之间的中间位置，有利于提高烘干室内热量分布均匀性。
第二方面，本申请实施例提供一种涂布设备，包括涂布装置和第一方面实施例提供的烘干装置。所述烘干装置用于对涂布于所述基材上的涂层进行烘干。
上述技术方案中，涂布设备的烘干室内设置有回风部，回风部能够将烘干室内的流体介质排出烘干室，当从相邻的两个第一进风部向烘干室内提供流体介质，流体介质作用于待烘干件后被待烘干件向两个第一进风部之间引导，使得流体介质携带的热量在两个第一进风部之间汇集，造成相邻的两个第一进风部之间对应的部分被过度加热，使得待烘干件各处加热不均，回风部设置在两个第一进风部之间能够将两个第一进风部之间的流体介质排出并带走热量，避免热量在两个第一进 风部之间汇集，提高待烘干件的加热均匀性。
在本申请第二方面的一些实施例中，所述涂布装置包括第一涂布机构和第二涂布机构，所述第二涂布机构设置于所述第一涂布机构的下游，所述第一涂布机构被配置为对所述基材的第一面进行涂布，所述第二涂布机构被配置为对所述基材的与所述第一面相对的第二面进行涂布；所述涂布设备包括两个烘干装置，所述两个烘干装置中的一者设于所述第一涂布机构的下游并位于所述第二涂布机构的上游，以对所述第一面上的涂层进行烘干，所述两个烘干装置中的另一者位于所述第二涂布机构的下游，以对所述第二面上的涂层进行烘干。
上述技术方案中，两个烘干装置中的一个用于对基材的第一面的涂层烘干，另一个用于对基材的第二面的涂层烘干，提高对基材加热的均匀性。
在本申请第二方面的一些实施例中，所述涂布设备还包括加热装置，所述加热装置设于位于所述第二涂布机构的下游的所述烘干装置的下游，所述加热装置被配置为对所述第二面上的涂层进行烘干。
上述技术方案中，在加热装置的上游，基材的第一面的涂层和第二面的涂层分别通过各自对应的烘干装置进行烘干，其中在对第二面的涂层进行烘干时，第一面的涂层会被再次烘干，使得第一面的涂层和第二面的涂层烘干程度不同，造成烘干不均，加热装置能够对第二面的涂层进行二次烘干，以使第一面的涂层和第二面的涂层的烘干程度趋于一致，减小第一面的涂层和第二面的涂层的烘干差异。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本申请的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1为现有技术中烘干装置的结构示意图；
图2为本申请一些实施例提供的涂布设备的结构示意；
图3为本申请一些实施例提供的烘干装置的结构示意图；
图4为本申请一些实施例提供的烘干装置的第一视角的结构简图；
图5为本申请一些实施例提供的烘干装置的第二视角的结构简图；
图6为本申请一些实施例提供的烘干装置的第三视角的结构示意图；
图7为本申请一些实施例提供的加热组件的第一视角的结构示意图；
图8为本申请一些实施例提供的加热组件的第二视角的结构示意图；
图9为本申请一些实施例提供的加热装置的第一视角结构示意图；
图10为本申请一些实施例提供的加热装置的第二视角结构示意图；
图11为本申请一些实施例提供的冷却牵引装置的结构示意图。
图标：1-烘干机；1a-进风嘴；1b-汇聚区域；1c-极片；1000-涂布设备；100-涂布装置；110-第一涂布机构；120-第二涂布机构；200-烘干装置；20-烘干室；201-第一烘干侧；202-第二烘干侧；21-加热组件；211-安装架；212-固定槽；213-加热单元；214-防护件；22-第一进风部；23-回风部；24-第一风箱；241-第一壁；242-第一进风室；243-第一箱体；244-第一供风口；25-第一驱动单元；26-外箱；262-第一入口；263-第一出口；264-第一排风口；27-第二进风部；28-第二风箱；281-第二壁；282-第二进风室；283-第二箱体；284-第二供风口；29-第二驱动单元；30-回风室；31-循环单元；32-第一排风单元；33-第一新风口；35-第一预热组件；36-过滤机构；37-吹风部；400-放卷装置；500-第一过辊组件；510-第一过辊；600-放卷纠偏装置；700-第一出口纠偏装 置；800-第二出口纠偏装置；900-第一牵引装置；1100-第二牵引装置；1200-第一面密度测量装置；1300-第二面密度测量装置；1400-机头纠偏装置；1500-爬坡装置；1600-加热装置；1610-加热箱；1611-供风部；1612-排风部；1613-第二入口；1614-第二出口；1615-第二排风口；1620-烘干组件；1630-传动辊；1631-第一传动辊；1632-第二传动辊；1640-循环组件；1650-过滤组件；1660-第二预热组件；1670-第二新风口；1680-第二排风单元；1700-冷却牵引装置；1710-冷却箱；1720-冷却部；1730-牵引辊；1740-张力调节机构；1780-张力传感器；1790-张力隔断机构；1791-压辊；1792-压辊驱动单元；1900-收卷装置；2000-收卷纠偏装置；2100-导入辊；2200-导出辊；3000-基材；3100-传送段；A-第一方向；B-第二方向；C-第三方向。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本申请实施例的组件可以以各种不同的配置来布置和设计。
因此，以下对在附图中提供的本申请的实施例的详细描述并非旨在限制要求保护的本申请的范围，而是仅仅表示本申请的选定实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步定义和解释。
在本申请实施例的描述中，需要说明的是，指示方位或位置关系为基于附图所示的方位或位置关系，或者是该申请产品使用时惯常摆放的方位或位置关系，或者是本领域技术人员惯常理解的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”、“第三”等仅用于区分描述，而不能理解为指示或暗示相对重要性。
本申请中出现的“多个”指的是两个以上(包括两个)。
本申请实施例提到的极片包括集流体和涂覆于集流体表面的活性物质层，活性物质层涂覆于集流体的部分区域，未涂覆活性物质层的集流体凸出于已涂覆活性物质层的集流体，未涂敷活性物质层的集流体作为极片的极耳。极片可以是正极片，也可以是负极片。若极片为正极片，正极片包括正极集流体和正极活性物质层，正极活性物质层涂覆于正极集流体的表面，未涂敷正极活性物质层的正极集流体凸出于已涂覆正极活性物质层的正极集流体，未涂敷正极活性物质层的正极集流体作为正极极耳。以锂离子电池为例，正极集流体的材料可以为铝，正极活性物质可以为钴酸锂、磷酸铁锂、三元锂或锰酸锂等。若是极片为负极片，负极片包括负极集流体和负极活性物质层，负极活性物质层涂覆于负极集流体的表面，未涂敷负极活性物质层的负极集流体凸出于已涂覆负极活性物质层的负极集流体，未涂敷负极活性物质层的负极集流体作为负极极耳。负极集流体的材料可以为铜，负极活性物质可以为碳或硅等。
在极片制造需要考虑多方面因素，以保证极片的成型质量，比如涂布重量、涂布密度、涂布厚度、走带精度等因素，除此之外，还需要考虑极片的活性物质层的烘干质量。
影响极片的活性物质层的烘干质量的主要因素包括加热的均匀性、加热不够、过度加热。若是极片加热不均，则极片存在不均匀脱水，会导致极片厚度不均，电极组件在受热膨胀时会因受力不均而导致析锂，影响电池的电性能和安全性能。若是极片加热不够，则活性物质层含水量太高影响导电性能。若是极片加热过度，则活性物质层容易皲裂脱落。
而对极片的烘干质量有重要的影响，发明人发现，现有技术中，如图1所示，烘干机1有并排布置有多个进风嘴1a，每个进风嘴1a正对极片1c的活性物质层并向极片1c送风，当从进风嘴1a送来的风作用于极片1c后，会以风与极片1c的垂直作用点为中心向四周扩散，图1中实心箭 头的指向为进风嘴1a的风作用于极片1c后的流向视图，进风嘴1a的风作用于极片1c后会在相邻的两个进风嘴1a之间会形成一个汇聚区域1b，风携带了热量流动，则相邻的两个进风嘴1a之间的汇聚区域1b的热量高于其他位置的热量，从而使得汇聚区域1b处对应的活性物质层被加热的程度大于其他位置，使得极片1c的活性物质层加热不均，甚至会导致汇聚区域1b对应的活性物质层过度加热。
基于此，本申请实施例提供一种技术方案，通过将在相邻的两个第一进风部之间设置至少一个回风部，通过回风部能够将烘干室内的流体介质排出，通过回风部排出流体介质从而带走相邻的两个第一进风部之间的热量，避免热量在两个第一进风部之间汇集，提高待烘干件的加热均匀性。
本申请实施例描述的技术方案适用于涂布设备1000以及需要使用烘干技术或者加热技术的其他产品。
如图2所示，本申请一些实施例提供的涂布设备1000包括涂布装置100和烘干装置200。涂布装置100用于在基材3000的表面涂布以在基材3000的表面形成涂层。烘干装置200用于对涂布于基材3000上的涂层进行烘干。
本申请实施例以用于涂布形成极片的涂布设备1000为例对相关结构进行介绍。因此，基材3000可以是集流体，涂布装置100在基材3000的表面涂布形成涂层可以是活性物质层。根据极片的极性不同，集流体的材质和活性物质层的材质有所不同。若涂布设备1000形成的是正极片，则集流体的材料可以为铝，活性物质可以为钴酸锂、磷酸铁锂、三元锂或锰酸锂等。若涂布设备1000形成的是负极片，则集流体的材料可以为铜，活性物质可以为碳或硅等。
沿基材3000的厚度方向，基材3000具有相对的第一面和第二面，涂布装置100用于对第一面和第二面涂布以在第一面和第二面形成涂层。
在一些实施例中，涂布装置100包括第一涂布机构110和第二涂布机构120，第二涂布机构120设置于第一涂布机构110的下游，第一涂布机构110被配置为对基材3000的第一面进行涂布，第二涂布机构120被配置为对基材3000的第二面进行涂布。涂布装置100包括两个分别对第一面和第二面进行涂布的第一涂布机构110和第二涂布机构120，能够提高涂布效率，进而提高生产效率。
涂布设备1000包括两个烘干装置200，两个烘干装置200中的一者设于第一涂布机构110的下游并位于第二涂布机构120的上游，以对第一面上的涂层进行烘干，两个烘干装置200中的另一者位于第二涂布机构120的下游，以对第二面上的涂层进行烘干。两个烘干装置200中的一个用于对基材3000的第一面的涂层烘干，另一个用于对基材3000的第二面的涂层烘干，提高对基材3000加热的均匀性。
需要说明的是，本申请实施例中上文、下文中所提及的“上游”以及“下游”指的是生产顺序的先后，上游是指生产顺序在先，下游是指生产顺序在后，并非限定各部件之间的空间位置。
请继续参见图2，在一些实施例中，涂布设备1000还包括放卷装置400，放卷装置400设置于第一涂布机构110的上游，放卷装置400用于基材3000自动放卷及走带。
在一些实施例中，涂布设备1000还包括第一过辊组件500，第一过辊组件500设置于放卷装置400的下游并设置于第一涂布机构110的上游。第一过辊组件500包括转动设置的多个第一过辊510，基材3000依次绕设于多个第一过辊510，第一过辊组件500用于支撑基材3000并实现基材3000传动。
由于设备的制造误差和安装误差存在，沿基材3000的走带方向，基材3000的位置存在偏移的可能，使得基材3000和涂布装置100的相对位置发生偏移，导致涂布装置100在基材3000上的进行涂布精度不够。
在一些实施例中，涂布设备1000还包括放卷纠偏装置600，放卷纠偏装置600设置于放卷装置400的下游并设置于第一涂布机构110的上游，放卷纠偏装置600能够接收基材3000并调节基材3000的位置，以使基材3000能够始终位于第一涂布机构110的涂布范围之内，从而保证第 一涂布机构110对基材3000的第一面的涂布精度。
由于设备的制造误差和安装误差存在，以及基材3000的第一面和第二面烘干过程中基材3000的位置可能会发生偏移以及基材3000可能产生褶皱，导致基材3000与其他装置的相对位置方向偏移。
基于此，在一些实施例中，涂布设备1000还包括第一出口纠偏装置700，第一出口纠偏装置700设置于第一涂布机构110的下游的烘干装置200的下游并设置于第二涂布机构120的上游，第一出口纠偏装置700能够接受第一面的涂层被烘干的基材3000并调节基材3000的位置，以使基材3000能够始终位于第二涂布机构120的涂布范围之内，从而保证第二涂布机构120对基材3000的第二面的涂布精度。第一出口纠偏装置700还能对第一面涂布有涂层的基材3000进行展平除皱，以保持涂布后的基材3000的平整性。
在一些实施例中，涂布设备1000还包括第二出口纠偏装置800，第二出口纠偏装置800设置于第二涂布机构120的下游的烘干装置200的下游，第二出口纠偏装置800能够接收第二面的涂层被烘干的基材3000并调节基材3000的位置。第二出口纠偏装置800还能对第一面和第二面均涂布有涂层的基材3000进行展平除皱，以保持涂布后的基材3000的平整性。
极片成型的工序较多，基材3000的传动路径较长，在基材3000的传动路径上，基材3000存在的张力不均的可能。
在一些实施例中，涂布设备1000还包括第一牵引装置900，第一牵引装置900设置于第一出口纠偏装置700的下游并位于第二涂布机构120的上游，第一牵引装置900用于从第一出口纠偏装置700向第二涂布机构120牵引基材3000，第一牵引装置900还用于在第一出口纠偏装置700和第二涂布机构120之间形成张力隔断，确保基材3000传送过程中的张力均衡。
在一些实施例中，涂布设备1000还包括第二牵引装置1100，第二牵引装置1100设置于第二出口纠偏装置800的下游，第二牵引装置1100用于从第二出口纠偏装置800牵引基材3000至下一工位，第二牵引装置1100还用于在第二出口纠偏装置800和下一工位之间形成张力隔断，确保基材3000传送过程中的张力均衡。
为保证涂布质量，在一些实施例中，涂布设备1000还包括第一面密度测量装置1200，第一面密度测量装置1200设置于第一涂布机构110的下游并位于第二涂布机构120的上游，第一面密度测量装置1200用于实现第一面的涂层的面密度实时监控，可与第一涂布机构110通信连接，实现涂布重量的闭环控制。
第一面密度测量装置1200可以设置于第一涂布机构110的下游并位于对第一面的涂层烘干的烘干装置200的上游，以使第一面密度测量装置1200用于检测烘干前的第一面的涂层的面密度。第一面密度测量装置1200也可以设置于对第一面的涂层烘干的烘干装置200的下游并位于第二涂布机构120的上游，以使第一面密度测量装置1200用于检测烘干后的第一面的涂层的面密度。
在一些实施例中，涂布设备1000还包括第二面密度测量装置1300，第二面密度测量装置1300设置于第二涂布机构120的下游，第二面密度测量装置1300用于实现第二面的涂层的面密度实时监控，可与第二涂布机构120通信连接，实现涂布重量的闭环控制。
第二面密度测量装置1300可以设置于第二涂布机构120的下游并位于对第二面的涂层烘干的烘干装置200的上游，以使第二面密度测量装置1300用于检测烘干前的第二面的涂层的面密度。第二面密度测量装置1300也可以设置于对第二面的涂层烘干的烘干装置200的下游，以使第二面密度测量装置1300用于检测烘干后的第二面的涂层的面密度。
在一些实施例中，涂布设备1000还包括机头纠偏装置1400，机头纠偏之间装置设置于第一面密度测量装置1200的下游并设置于第二涂布机构120的上游，机头纠偏装置1400用于在第二涂布机构120对基材3000的第二面进行涂布之前对基材3000进行位置调整，同时可与CCD(Charge-coupled Device，电荷耦合器件)测量系统，实现基材3000位置调整的闭环控制。
由于极片成型的工序较多、基材3000较长，使得涂布设备1000占地面积较大，为避免涂 布设备1000的各个装置沿某一个方向布置，在一些实施例中，将涂布设备1000布置成并列的两排。如图2所示，第二涂布机构120上游的装置设置于下排，第二涂布机构120下游的装置设置于上排。为使得基材3000能够平稳地从下排传送至上排，涂布设备1000还包括爬坡装置1500，爬坡装置1500设置于第二涂布机构120的下游并设置于基材3000的用于对第二面的涂层烘干的烘干装置200的上游。爬坡装置1500用于支撑基材3000并将基材3000从第二涂布机构120向对第二面的涂层烘干的烘干装置200牵引，以使基材3000能够平稳地从第二涂布机构120传送至对第二面的涂层烘干的烘干装置200处。
由于基材3000的第一面的涂层和第二面的涂层分别通过各自对应的烘干装置200进行烘干，且先对第一面的涂层进行烘干，再对第二面的涂层进行烘干，在对第二面的涂层进行烘干时，第一面的涂层会被再次烘干，即第一面的涂层进行了两次烘干，使得第一面的涂层和第二面的涂层烘干程度不同，造成烘干不均。基于此，在一些实施例中，涂布设备1000还包括加热装置1600，加热装置1600设于位于第二涂布机构120的下游的烘干装置200的下游，加热装置1600被配置为对第二面上的涂层进行烘干。加热装置1600能够对第二面的涂层进行二次烘干，以使第一面的涂层和第二面的涂层的烘干程度趋于一致，减小第一面的涂层和第二面的涂层的烘干差异。
在一些实施例中，加热装置1600设置于第二牵引装置1100的下游，第二牵引装置1100用于从第二出口纠偏装置800牵引基材3000至加热装置1600，以使加热装置1600对第二面的涂层进行二次烘干。
在一些实施例中，涂布设备1000还包括冷却牵引装置1700，冷却牵引装置1700设置于加热装置1600的下游，对经过加热装置1600干燥后的基材3000进行牵引传送及片降温，确保涂布有涂层的基材3000传送不打皱。
在一些实施例中，在第二面密度测量装置1300设置于加热装置1600的上游的情况下，涂布设备1000还包括第三面密度测量装置(图中未示出)，第三面密度测量装置设置于加热装置1600的下游，第三面密度测量装置用于实现二次烘干后的第二面的涂层的面密度实时监控，可与第二涂布机构120通信连接，实现涂布重量的闭环控制。其中，第二面密度测量装置1300设置于加热装置1600的上游的情况包括：在第二面密度测量装置1300设置于对基材3000的第二面的涂层烘干的烘干装置200的下游且位于加热装置1600的上游或者第二面密度测量装置1300设置于对基材3000的第二面的涂层烘干的烘干装置200的上游且位于第二涂布机构120的下游。
请参见图2，在一些实施例中，涂布设备1000也可以不设置第三面密度测量装置，将第二面密度测量装置1300设置于加热装置1600的下游，第二面密度测量装置1300用于实现二次烘干后的第二面的涂层的面密度实时监控，可与第二涂布机构120通信连接，实现涂布重量的闭环控制。
在一些实施例中，涂布设备1000还包括收卷装置1900，收卷装置1900设置于第二面密度测量装置1300的下游，收卷装置1900用于第一面和第二面均涂布有涂层的基材3000的自动收卷及自动换卷。
在一些实施例中，涂布设备1000还包括收卷纠偏装置2000，收卷纠偏装置2000设置于第二面密度测量装置1300的下游，收卷纠偏装置2000用于在收卷装置1900收卷基材3000之前对基材3000进行位置调整。
如图3、图4所示，在一些实施例中，烘干装置200包括烘干室20和加热组件21。烘干室20用于容纳待烘干件，烘干室20具有面向待烘干件的第一烘干侧201，第一烘干侧201设有供流体介质进入烘干室20的多个第一进风部22。加热组件21设置于第一烘干侧201，加热组件21被配置为烘干待烘干件。其中，第一烘干侧201还设有回风部23，相邻的两个第一进风部22之间设有至少一个回风部23，回风部23被配置为供烘干室20内的流体介质排出烘干室20。
在本申请实施例中，流体介质为气体，比如外部空气、保护气体等。
相邻的两个第一进风部22之间设置至少一个回风部23，图2中示出的是相邻的两个第一进风部22之间设置一个回风部23。在另一些实施例中，相邻的两个第一进风部22之间可以设置两个及两个以上的其他数量的回风部23。
回风部23能够将烘干室20内的流体介质排出烘干室20，当从相邻的两个第一进风部22向烘干室20内提供流体介质，流体介质作用于待烘干件后被待烘干件向两个第一进风部22之间引导，使得流体介质携带的热量在两个第一进风部22之间汇聚，造成相邻的两个第一进风部22之间对应的部分被过度加热，使得待烘干件各处加热不均，回风部23设置在两个第一进风部22之间能够将两个第一进风部22之间的流体介质排出并带走热量，避免热量在两个第一进风部22之间汇聚，提高待烘干件的加热均匀性。
第一进风部22可以为风嘴、供风口等，回风部23可以为风嘴、抽风口等。当第一进风部22为风嘴时，第一进风部22可以延伸至烘干室20内，以减小与基材3000之间的距离。
如图3、图4所示，烘干室20的第一烘干侧201位于基材3000的厚度方向的一侧，多个第一进风部22间隔布置于第一进风侧。
为进一步降低热量相邻的两个第一进风部22之间汇聚，在一些实施例中，将回风部23设置于相邻的两个第一进风部22的中间位置，换句话说，两个第一进风部22中的一者与回风部23之间的距离和两个第一进风部22中的另一者与回风部23之间的距离相等，有利于提高烘干室20内热量分布均匀性。
为使得热量在烘干室20内分布尽可能均匀，相邻的两个第一进风部22之间设置至少一个加热组件21。使得第一进风部22在向烘干室20内提供流体介质时能够随着流体介质的流动将加热组件21的热量带至烘干室20的各个位置，提高热量分布均匀性，从而提高待烘干件的加热均匀性。
在一些实施例中，烘干装置200包括在第一方向A上面向待烘干件的第一壁241，第一进风部22、加热组件21和回风部23均设置于第一壁241，第一进风部22、加热组件21和回风部23均设置于第一壁241面向烘干室20的一侧。烘干装置200还包括第一驱动单元25，第一驱动单元25被配置为调节第一壁241与待烘干件在第一方向A的距离。第一驱动单元25能够驱动设置了第一进风部22、加热组件21和回风部23的第一壁241移动，以调节第一壁241与待烘干件与在第一方向A上的距离，从而调节加热组件21与待烘干件之间的距离，以满足不同的加热需求，提高加热质量。
需要说明的是，在本申请实施例中，以烘干基材3000的表面的涂层为例对涂布设备1000相关的结构进行介绍，因此，待烘干件表面涂布有涂层的基材3000，在其他实施例中，待烘干件也可以是其他结构。
第一驱动单元25可以是调节螺钉、直线电机、气缸等直线驱动机构，第一驱动单元25驱动第一壁241沿第一方向A往复移动以使第一壁241靠近或远离基材3000，从而使得第一进风部22、加热组件21和回风部23靠近或者远离基材3000。第一驱动单元25可以间隔设置多个，以能够从多个位置沿第一方向A对第一壁241与基材3000之间的距离进行调节，尤其是在第一壁241的长度方向和/或宽度方向的尺寸较大的情况下，通过多个第一驱动单元25驱动第一壁241沿第一方向A移动，能够使得第一壁241长度方向和/或宽度方向上的各个位置与基材3000的在第一方向A的距离相同，减小基材3000的各个位置与第一进风部22、加热组件21和回风部23在第一方向A的距离差异，提高加热均匀性，从而提高产品质量。
在一些实施例中，烘干装置200还包括第一进风室242，第一进风室242与烘干室20通过第一壁241隔开，第一进风部22、加热组件21和回风部23均设置于第一壁241；其中，第一进风部22用于供第一进风室242内的流体介质进入烘干室20。流体介质进入第一进风室242后从多个第一进风部22进入烘干室20，使得流体介质能够被较为均匀地分布在烘干室20内，从而提高待烘干件的加热均匀性。第一进风室242与烘干室20共用第一壁241并通过第一壁241隔开，能够减小烘干装置200的体积。
烘干装置200还包括外箱26，烘干室20和第一进风室242均设置于外箱26内。
在一些实施例中，烘干装置200包括第一风箱24，第一风箱24的内部形成第一进风室242，第一风箱24包括第一壁241和具有第一开口的第一箱体243，第一壁241盖合第一开口以使第一壁241和第一箱体243共同限定出第一进风室242。第一进风室242与外箱26内部通过第一进 风部22连通。第一驱动单元25安装于外箱26，第一驱动单元25通过驱动第一风箱24在外箱26内沿第一方向A移动，从而使第一壁241沿第一方向A移动。
第一风箱24还设置有第一供风口244，第一供风口244与第一进风室242连通，通过第一供风口244向第一进风室242提供流体介质，进入第一进风室242内的流体介质再经过第一进风部22进入烘干室20。
第一进风室242和烘干室20还可以是以其他形式形成，比如，第一进风室242可以是由第一壁241背离待烘干件的表面和外箱26的内壁共同限定形成，第一壁241的两端可滑动地设置于外箱26，第一驱动单元25安装于外箱26，第一驱动单元25驱动第一壁241沿第一方向A相对外箱26滑动。第一壁241面向基材3000的表面与外箱26的内壁共同限定出烘干室20，第一驱动单元25沿第一方向A驱动第一壁241移动，不仅能够调节第一壁241与基材3000之间的距离，还能调节第一进风室242和烘干室20的大小的，当第一进风室242逐渐减小，则烘干室20逐渐增大，反之，当第一进风室242逐渐增大，则烘干室20逐渐减小。
在一些实施例中，烘干室20还具有在第一方向A与第一烘干侧201相对布置的第二烘干侧202，第二烘干侧202设有供流体介质进入烘干室20的多个第二进风部27。第二进风部27能够使流体介质从烘干室20的第二烘干侧202进入烘干室20，能够加快烘干室20内的流体介质的流动，从而加快热量在烘干室20内流动，以使热量在烘干室20内均匀分布，提高待烘干件的加热均匀性。
第二烘干侧202位于基材3000背离第一烘干侧201的一侧。第二进风部27可以为风嘴、供风口等。当第二进风部27为风嘴时，第二进风部27可以延伸至烘干室20内，以减小与基材3000之间的距离。
在一些实施例中，烘干装置200包括在第一方向A上面向待烘干件的第一壁241和与第一壁241相对布置的第二壁281；第一进风部22、加热组件21和回风部23均设置于第一壁241，第二进风部27设置于第二壁281；烘干室20在第一方向A位于第一壁241和第二壁281之间；烘干装置200还包括第二驱动单元29，第二驱动单元29被配置为驱动第二壁281移动以调节第二壁281与第一壁241在第一方向A上的距离。第二驱动单元29能够驱动第二壁281移动以调节第二壁281与第一壁241在第一方向A上的距离，以适应沿第一方向A不同尺寸的待烘干件。
第二驱动单元29可以是调节螺钉、直线电机、气缸等直线驱动机构，第二驱动单元29驱动第二壁281沿第一方向A往复移动以使第二壁281靠近或远离基材3000或者第一壁241，从而调节第二进风部27与基材3000的距离或者第二壁281与第一壁241之间的距离。第二驱动单元29可以间隔设置多个，以能够从多个位置沿第一方向A对第二壁281进行调节，尤其是在第二壁281的长度方向和/或宽度方向的尺寸较大的情况下，通过多个第二驱动单元29驱动第二壁281沿第一方向A移动，能够使得第二壁281长度方向和/或宽度方向上的各个位置与基材3000的在第一方向A的距离相同，减小基材3000的各个位置与第二进风部27在第一方向A的距离差异，提高加热均匀性，从而提高产品质量。
在一些实施例中，烘干装置200包括第二风箱28，第二风箱28的内部形成第二进风室282，第二风箱28包括第二壁281和具有第二开口的第二箱体283，第二壁281盖合第二开口以使第二壁281和第二箱体283共同限定出第二进风室282。第二进风室282与外箱26内部空间通过第二进风部27连通。第二驱动单元29安装于外箱26，第二驱动单元29通过驱动第二风箱28在外箱26内沿第一方向A移动，从而使第二壁281沿第一方向A移动。
第二风箱28还设置有第二供风口284，第二供风口284与第二进风室282连通，通过第二供风口284第二进风室282提供流体介，进入第二进风室282内的流体介质再经过第二进风部27进入烘干室20。
第二进风室282还可以是以其他形式形成，比如，第二进风室282可以是由第二壁281背离待烘干件的表面和外箱26的内壁共同限定形成，第二壁281的两端沿第一方向A可滑动地设置于外箱26，第二驱动单元29安装于外箱26，第二驱动单元29驱动第二壁281沿第一方向A相对外箱26滑动。第一驱动单元25沿第一方向A驱动第二壁281移动，不仅能够调节第二壁281与基 材3000之间的距离，还能调节第二进风室282和烘干室20的大小的，当第二进风室282逐渐减小，则烘干室20逐渐增大，反之，当第二进风室282逐渐增大，则烘干室20逐渐减小。
外箱26还设有供基材3000穿入外箱26内的第一入口262和供基材3000穿出外箱26的第一出口263，第一入口262和第一出口263均与外箱26内部连通，基材3000从第一入口262穿入外箱26并从第一出口263穿出外箱26的过程中，加热组件21对基材3000上的涂层进行烘干。
在一些实施例中，烘干装置200可以仅包括第一进风室242和烘干室20。
由于流体介质进入烘干室20内之前需要进行预热，避免从第一进风部22和第二进风部27进入烘干室20内的流体介质与烘干室20内的流体介质的温差过大，对烘干室20内的烘干温度造成较大影响。
在一些实施例中，烘干装置200还包括回风室30和循环单元31，回风室30被配置为容纳从回风部23排出的流体介质，循环单元31被配置为将回风室30内的流体介质导入第一进风室242。
从回风部23排出的流体介质能够容纳于回风室30，再在循环单元31的作用下进入第一进风室242，从而能够经过第一进风部22进入烘干室20内，能够循环利用烘干室20内加热组件21产生的热量，减少能耗。图4中实心箭头的指向是从第一进风部22进入烘干室20内的流体介质依次作用于基材3000、回风部23最后经过回风室30并从外箱26上的第一排风口264排出的流动路径。空心箭头的指向是外箱26内的流体介质经过第一排风口264直接排出的路径。
在一些实施例中，外箱26还设有与外箱26内部连通的第一排风口264，烘干装置200还包括第一排风单元32，第一排风单元32用于将外箱26内的流体介质从第一排风口264排出，在第一排风单元32排出外箱26内的流体介质的过程中，流体介质将携带基材3000的涂层烘干蒸发的溶剂排出，降低失重率。
在一些实施例中回风室30由第一箱体243的外壁、第二箱体283的外壁和外箱26的内壁共同限定。回风室30与烘干室20连通，烘干室20内的流体介质能够直接进入回风室30，也可以通过回风部23进入回风室30内，进入回风室30内的流体介质在循环单元31的驱动下进入第一进风室242和/或第二进风室282。在一些实施例中，循环单元31可以使回风室30内的流体介质经过第一排风口264排出并再经过第一进风部22导入烘干室20内。
如图5所示，在一些实施例中，烘干装置200还包括第一新风口33，循环单元31通过第一新风口33从外部抽取新风，并将新风从第一供风口244和第二供风口284送入第一进风室242和第二进风室282。在一些实施例中，烘干装置200还包括第一预热组件35，新风被循环单元31送入第一进风室242和第二进风室282之前经过第一预热组件35，第一预热组件35对新风进行预热，避免新风与烘干室20内的流体介质的温差过大，对烘干室20内的烘干温度造成较大影响。
如图6所示，在一些实施例中，烘干装置200还包括过滤机构36，过滤机构36用于在流体介质进入第一进风室242和第二进风室282之前对流体介质进行过滤，即流体介质经过过滤机构36后进入第一进风室242和第二进风室282，以保证进入第一进风室242和第二进风室282的流体介质的清洁。
如图7、图8所示，在一些实施例中，加热组件21包括安装架211和加热单元213，安装架211设置于第一烘干侧201，以使加热单元213产生的热量到达基材3000的路径较短，减少热量损失。
加热单元213可以是加热电阻丝、红外灯管等。以加热单元213为红外灯管为例，安装架211设有固定槽212，固定槽212的槽口朝向基材3000，红外灯管卡持于固定槽212内。
在一些实施例中，加热组件21还包括防护件214，防护件214设置于安装架211并围设于加热单元213的外周。防护件214的设置能够将加热单元213和待烘干件隔开，避免待烘干件与加热单元213直接接触而损伤待烘干件，起到安全防护的作用。防护件214于安装架211之间可以采用快扣式结构连接，可快速拆卸，便于安装或更换。当然，防护件214也可以通过螺栓、螺钉、焊接等方式安装于安装架211。防护件214可以采用不锈钢网，即具有较强的耐热能力，还不会影响 加热单元213的热量传递。
在一些实施例中，烘干装置200包括吹风部37，吹风部37被配置为向加热组件21提供流体介质，以调节加热组件21的温度。
吹风部37能够向加热组件21提供流体介质，以调节加热组件21的温度，比如吹风部37向加热组件21提高冷气，以对加热组件21冷却降温，可提高加热组件21的寿命。
吹风部37设置于安装架211，使得吹风部37靠近加热单元213设置，从吹风部37进入的流体介质能够直接或者经过较短的距离即可作用于加热单元213，减小吹风部37提供发的流体介质对烘干室20内的温度的影响。
如图8所示，吹风部37包括狭缝式风嘴，可供空气通过到达加热组件21从而对加热组件21降温。从吹风部37进入并经过加热单元213的流体介质能够被加热单元213加热，即起到降低加热单元213的温度的作用，又能加速烘干室20内的空气流动和热量扩散。吹风部37的出风口朝向加热单元213，使得从吹风部37吹出的流体介质能够直接作用于加热单元213并被加热，降低从吹风部37吹出的流体介质未被加热在烘干室20内扩散的可能性。
如图9所示，在一些实施例中，加热装置1600包括加热箱1610、烘干组件1620和多个传动辊1630，烘干组件1620和多个传动辊1630均设置于加热箱1610内；多个传动辊1630用于传送基材3000，基材3000在相邻的两个传动辊1630之间形成传送段3100；烘干组件1620设置于相邻且相对的两个传送段3100之间并面向基材3000的第二面设置，以使烘干组件1620对基材3000的第二面上的涂层进行烘干。
加热箱1610内设置多个传动辊1630，可增加基材3000在加热箱1610内的传送距离，可延长基材3000在加热箱1610内的传动时间，从而延长烘干时间。
在一些实施例中，多个传动辊1630中的部分为第一传动辊1631，多个传动辊1630中的另一部分为第二传动辊1632，第一传动辊1631的数量为多个，第二传动辊1632的数量为多个。多个第一传动辊1631和多个第二传动辊1632沿第二方向B间隔布置，多个第一传动辊1631沿第三方向C成排布置，多个第二传动辊1632沿第二方向B成排布置，第二方向B垂直第三方向C。基材3000沿其传送方向依次缠绕第一传动辊1631和第二传动辊1632，基材3000在相邻的两个第一传动辊1631和第二传动辊1632之间形成传送段3100。这样沿第三方向，基材3000被划分为多个间隔布置的传送段3100，相邻的两个传送段3100之间设置至少一个烘干组件1620，则该烘干组件1620能够同时对相邻的两个传送段3100的第二面的涂层加热，能够提高加热效率。
加热装置1600包括多个烘干组件1620，多个烘干组件1620沿基材3000的传送方向间隔布置于加热箱1610内，能够提高烘干质量和烘干效率。
在一些实施例中，加热装置1600的加热功率可以小于任意一个烘干装置200的加热功率，以减小加热装置1600在对第二面的涂层进行二次烘干时，加热装置1600的热量对第一面的涂层的影响。两个烘干装置200的加热功率可以相同也可以不同，可以根据第一面的涂层和第二面的涂层的厚度、烘干程度需求等选择对应功率的烘干装置200。
加热箱1610上还设有供流体介质进入加热箱1610内的供风部1611和供加热箱1610内的流体介质排出的排风部1612；加热装置1600还包括循环组件1640，循环组件1640被配置为将从排风部1612排出的流体介质从供风部1611导入加热箱1610，以充分利用烘干组件1620产生的热量，减少能耗。
在一些实施例中，加热箱1610还设有供基材3000穿入加热箱1610内的第二入口1613和供基材3000穿出加热箱1610的第二出口1614。基材3000从第二入口1613穿入加热箱1610并从第二出口1614穿出加热箱1610的过程中，烘干组件1620对基材3000的第二面的涂层进行烘干。
涂布设备1000还包导入辊2100和导出辊2200，导入辊2100设置于第二入口1613处，导入辊2100被配置为将基材3000从第二入口1613导入加热箱1610，以使基材3000从加热装置1600的上一个工位(比如第二牵引装置1100)平稳顺利地传送至加热装置1600。导出辊2200设置于第二出口1614处，导出辊2200被配置为将基材3000从第二出口1614导出加热箱1610，以使基 材3000从加热装置1600平稳地传送至下一工位(比如冷却牵引装置1700)。
在一些实施例中，导入辊2100和导出辊2200均设置于加热箱1610的外壁，以使基材3000顺利进入加热箱1610和移出加热箱1610，降低基材3000在进入加热箱1610和移出加热箱1610时出现刮碰，而损伤基材3000的风险。
在一些实施例中，导入辊2100和导出辊2200中只有一者设置于加热箱1610，另一者可以设置于其他工位对应的装置，比如，导入辊2100设置于加热箱1610，导出辊2200可以设置于加热装置1600下游的冷却牵引装置1700。
在一些实施例中，加热装置1600还包括过滤组件1650，过滤组件1650设置于进风部，过滤组件1650被配置为对从进风部进入加热箱1610的流体介质进行过滤，以保证进入加热箱1610内的流体介质的清洁，从而保证加热烘干安全和烘干质量。过滤组件1650可以是滤网等结构。
如图10所示，在一些实施例中，加热装置1600还包括第二新风口1670，循环组件1640通过第二新风口1670从外部抽取新风，并将新风从供风部1611导入加热箱1610内。
在一些实施例中，加热装置1600还包括第二预热组件1660，第二预热组件1660设置于供风部1611，预热组件被配置为对供风部1611进入加热箱1610的流体介质进行预热，尤其是需要对从第二新风口1670抽取的新风进行预热，避免从供风部1611进入加热箱1610的流体介质温度过低，从而降低加热箱1610内的温度，影响加热装置1600对基材3000的第二面的涂层进行烘干。其中，第二预热组件1660设置于过滤组件1650的下游，即新风先经过过滤组件1650过滤，再经过第二预热组件1660预热。
在一些实施例中，加热箱1610还设有与加热箱1610内部空间连通的第二排风口1615，加热装置1600还包括第二排风单元1680，第二排风单元1680用于将加热箱1610内的流体介质从第二排风口1615排出，在第二排风单元1680排出加热箱1610内的流体介质的过程中，流体介质将携带基材3000的涂层烘干蒸发的溶剂排出，降低失重率。
如图11所示，在一些实施例中，冷却牵引装置1700包括冷却箱1710、冷却部1720和多个牵引辊1730，冷却部1720和多个牵引辊1730均设置于冷却箱1710内，冷却部1720被配置为向基材3000提供流体介质，以调节基材3000的温度。多个牵引辊1730被配置为供基材3000沿其移动方向依次缠绕，以传送基材3000。
在一些实施例中，冷却牵引装置1700还包括张力调节机构1740，张力调节机构1740设置于冷却箱1710内，张力调节机构1740被配置为调节基材3000的张力，以使基材3000张力均衡，保证基材3000传送平稳。
在一些实施例中，冷却牵引装置1700还包括张力传感器1780，张力传感器1780设置于冷却箱1710内，张力传感器1780用于检测基材3000的张力，张力调节机构1740根据张力传感器1780获取的基材3000的张力信号，调节基材3000的张力，以使基材3000张力均衡，能够实现稳定传送。
在一些实施例中，冷却牵引装置1700还包括张力隔断机构1790，张力隔断机构1790被配置为与多个牵引辊1730中的一个牵引辊1730配合压紧基材3000，以沿基材3000的传送方向，基材3000位于张力隔断机构1790两侧的基材3000能够形成不同张力，以满足平稳传送需求。张力隔断机构1790包括压辊1791和压辊驱动单元1792，压辊驱动单元1792在冷却箱1710内驱动压辊1791移动，以调节压辊1791的周面和与张力隔断机构1790配合的牵引辊1730的周面之间的距离，从而调节压辊1791和该牵引辊1730对基材3000的压紧程度，从而调节基材3000和牵引辊1730之间的摩擦力，以使基材3000位于张力隔断机构1790两侧的基材3000能够形成不同张力。
以上仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (14)

  1. 一种烘干装置，包括：
    烘干室，用于容纳待烘干件，所述烘干室具有面向所述待烘干件的第一烘干侧，所述第一烘干侧设有供流体介质进入所述烘干室的多个第一进风部；
    加热组件，设置于所述第一烘干侧，所述加热组件被配置为烘干所述待烘干件；
    其中，所述第一烘干侧还设有回风部，相邻的两个第一进风部之间设有至少一个回风部，所述回风部被配置为供所述烘干室内的流体介质排出所述烘干室。
  2. 根据权利要求1所述的烘干装置，其中，所述烘干装置包括在第一方向上面向所述待烘干件的第一壁，所述第一进风部、所述加热组件和所述回风部均设置于所述第一壁；
    所述烘干装置还包括第一驱动单元，所述第一驱动单元被配置为调节所述第一壁与所述待烘干件在所述第一方向的距离。
  3. 根据权利要求1或2所述的烘干装置，其中，所述烘干装置还包括第一进风室，所述第一进风室与所述烘干室通过第一壁隔开，所述第一进风部、所述加热组件和所述回风部均设置于所述第一壁；
    其中，所述第一进风部用于供所述第一进风室内的流体介质进入所述烘干室。
  4. 根据权利要求3所述的烘干装置，其中，所述烘干装置还包括回风室和循环单元，所述回风室被配置为容纳从所述回风部排出的流体介质，所述循环单元被配置为将所述回风室内的流体介质导入所述第一进风室。
  5. 根据权利要求1-4任一项所述的烘干装置，其中，所述烘干室还具有在第一方向与所述第一烘干侧相对布置的第二烘干侧，所述第二烘干侧设有供流体介质进入所述烘干室的多个第二进风部。
  6. 根据权利要求5所述的烘干装置，其中，所述烘干装置包括在所述第一方向上面向所述待烘干件的第一壁和与所述第一壁相对布置的第二壁；
    所述第一进风部、所述加热组件和所述回风部均设置于所述第一壁，所述第二进风部设置于所述第二壁；
    所述烘干室在所述第一方向位于所述第一壁和所述第二壁之间；
    所述烘干装置还包括第二驱动单元，所述第二驱动单元被配置为驱动所述第二壁移动以调节所述第二壁与所述第一壁在所述第一方向上的距离。
  7. 根据权利要求1-6任一项所述的烘干装置，其中，相邻的两个第一进风部之间设置至少一个加热组件。
  8. 根据权利要求1-7任一项所述的烘干装置，其中，所述烘干装置包括吹风部，所述吹风部被配置为向所述加热组件提供流体介质，以调节所述加热组件的温度。
  9. 根据权利要求8所述的烘干装置，其中，所述加热组件包括安装架和加热单元，所述安装架设置于所述烘干侧，所述加热单元和所述吹风部均设置于所述安装架。
  10. 根据权利要求9所述的烘干装置，其中，所述加热组件还包括防护件，所述防护件设置于所述安装架并围设于所述加热单元的外周。
  11. 根据权利要求1-10任一项所述的烘干装置，其中，所述两个第一进风部中的一者与所述回风部之间的距离和所述两个第一进风部中的另一者与所述回风部之间的距离相等。
  12. 一种涂布设备，包括：
    涂布装置，被配置为对基材进行涂布；以及
    根据权利要求1-11任一项所述的烘干装置，用于对涂布于所述基材上的涂层进行烘干。
  13. 根据权利要求12所述的涂布设备，其中，所述涂布装置包括第一涂布机构和第二涂布机构，所述第二涂布机构设置于所述第一涂布机构的下游，所述第一涂布机构被配置为对所述基材的第一面进行涂布，所述第二涂布机构被配置为对所述基材的与所述第一面相对的第二面进行涂布；
    所述涂布设备包括两个烘干装置，所述两个烘干装置中的一者设于所述第一涂布机构的下游并位于所述第二涂布机构的上游，以对所述第一面上的涂层进行烘干，所述两个烘干装置中的另一者位于所述第二涂布机构的下游，以对所述第二面上的涂层进行烘干。
  14. 根据权利要求13所述的涂布设备，其中，所述涂布设备还包括加热装置，所述加热装置设于位于所述第二涂布机构的下游的所述烘干装置的下游，所述加热装置被配置为对所述第二面上的涂层进行烘干。
PCT/CN2022/097939 2021-07-30 2022-06-09 烘干装置及涂布设备 WO2023005446A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP22848055.4A EP4234105A4 (en) 2021-07-30 2022-06-09 DRYING DEVICE AND COATING DEVICE
US18/201,647 US12085335B2 (en) 2021-07-30 2023-05-24 Oven drying apparatus and coating device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110876189.0A CN115672692A (zh) 2021-07-30 2021-07-30 烘干装置及涂布设备
CN202110876189.0 2021-07-30

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/201,647 Continuation US12085335B2 (en) 2021-07-30 2023-05-24 Oven drying apparatus and coating device

Publications (1)

Publication Number Publication Date
WO2023005446A1 true WO2023005446A1 (zh) 2023-02-02

Family

ID=85059751

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/097939 WO2023005446A1 (zh) 2021-07-30 2022-06-09 烘干装置及涂布设备

Country Status (4)

Country Link
US (1) US12085335B2 (zh)
EP (1) EP4234105A4 (zh)
CN (1) CN115672692A (zh)
WO (1) WO2023005446A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116637784A (zh) * 2023-05-29 2023-08-25 海目星激光科技集团股份有限公司 船体组件、烘干装置以及涂布设备
US12085335B2 (en) * 2021-07-30 2024-09-10 Contemporary Amperex Technology Co., Limited Oven drying apparatus and coating device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102641835A (zh) * 2012-04-26 2012-08-22 深圳市浩能科技有限公司 涂布机循环干燥箱体、干燥装置及干燥流水线
EP2853849A1 (de) * 2013-09-27 2015-04-01 M+W Germany GmbH Trockenraum, insbesondere für den Einsatz bei der Lithium-Ionen-Zellfertigung
CN206153096U (zh) * 2016-10-25 2017-05-10 宁德时代新能源科技股份有限公司 涂布机烘箱装置
CN206425148U (zh) * 2017-01-22 2017-08-22 宁德时代新能源科技股份有限公司 涂布机构
CN206919606U (zh) * 2017-07-03 2018-01-23 宁德时代新能源科技股份有限公司 烘烤设备
CN209753324U (zh) * 2018-11-29 2019-12-10 深圳市新嘉拓自动化技术有限公司 一种涂布机烘箱
CN111842066A (zh) * 2020-08-14 2020-10-30 深圳市新嘉拓自动化技术有限公司 一种提高极片涂布干燥质量的制备工艺及系统
CN215465733U (zh) * 2021-07-30 2022-01-11 宁德时代新能源科技股份有限公司 一种涂布设备

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2364080A (en) * 1942-07-06 1944-12-05 American Can Co Drying oven
US3199224A (en) * 1962-04-03 1965-08-10 Wolverine Equipment Co Apparatus for treating continuous length webs comprising high velocity gas jets
CA951190A (en) * 1970-10-30 1974-07-16 Dwight M. Wilkinson Method and apparatus for drying solvents
US4235023A (en) * 1978-06-16 1980-11-25 Best Willie H High heat transfer oven
GB8629882D0 (en) * 1986-12-15 1987-01-28 Greenbank Eng Co Ltd Convective drying apparatus
US5568692A (en) * 1994-11-09 1996-10-29 Durr Industries, Inc. Paint drying oven with radiant energy floor
AU2139197A (en) * 1996-03-29 1997-10-22 Minnesota Mining And Manufacturing Company Apparatus and method for drying a coating on a substrate employing multiple drying subzones
CN1255603C (zh) * 1998-07-01 2006-05-10 佐治亚科技研究公司 采用振荡回流冲击气体从纤维幅片中去除水的方法
JP5194745B2 (ja) * 2007-11-29 2013-05-08 トヨタ自動車株式会社 シート状基材の乾燥装置
KR101191627B1 (ko) * 2010-11-26 2012-10-17 삼성에스디아이 주식회사 이차전지의 전극판 건조장치 및 그 제어방법
US9482429B2 (en) * 2011-03-10 2016-11-01 Ght Global Heating Technologies Ag Field-ready oven
KR101879897B1 (ko) * 2011-03-29 2018-08-17 도레이 카부시키가이샤 텐터 오븐 및 연신 필름의 제조 방법
WO2013023058A2 (en) * 2011-08-11 2013-02-14 Avery Dennison Corporation Inerted plate dryer and method of drying solvent based coating
CN103586182A (zh) * 2013-11-07 2014-02-19 东南大学 用于动力锂离子电池涂布干燥对流烘箱
CN207204524U (zh) * 2017-09-18 2018-04-10 陕西浩合机械有限责任公司 一种双面涂布机烘干装置
CN207563214U (zh) * 2017-11-20 2018-07-03 浙江笙富精密科技有限公司 一种具有循环装置的涂布机
CN115672692A (zh) * 2021-07-30 2023-02-03 宁德时代新能源科技股份有限公司 烘干装置及涂布设备

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102641835A (zh) * 2012-04-26 2012-08-22 深圳市浩能科技有限公司 涂布机循环干燥箱体、干燥装置及干燥流水线
EP2853849A1 (de) * 2013-09-27 2015-04-01 M+W Germany GmbH Trockenraum, insbesondere für den Einsatz bei der Lithium-Ionen-Zellfertigung
CN206153096U (zh) * 2016-10-25 2017-05-10 宁德时代新能源科技股份有限公司 涂布机烘箱装置
CN206425148U (zh) * 2017-01-22 2017-08-22 宁德时代新能源科技股份有限公司 涂布机构
CN206919606U (zh) * 2017-07-03 2018-01-23 宁德时代新能源科技股份有限公司 烘烤设备
CN209753324U (zh) * 2018-11-29 2019-12-10 深圳市新嘉拓自动化技术有限公司 一种涂布机烘箱
CN111842066A (zh) * 2020-08-14 2020-10-30 深圳市新嘉拓自动化技术有限公司 一种提高极片涂布干燥质量的制备工艺及系统
CN215465733U (zh) * 2021-07-30 2022-01-11 宁德时代新能源科技股份有限公司 一种涂布设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4234105A4

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12085335B2 (en) * 2021-07-30 2024-09-10 Contemporary Amperex Technology Co., Limited Oven drying apparatus and coating device
CN116637784A (zh) * 2023-05-29 2023-08-25 海目星激光科技集团股份有限公司 船体组件、烘干装置以及涂布设备

Also Published As

Publication number Publication date
EP4234105A1 (en) 2023-08-30
US12085335B2 (en) 2024-09-10
EP4234105A4 (en) 2024-05-15
CN115672692A (zh) 2023-02-03
US20230296315A1 (en) 2023-09-21

Similar Documents

Publication Publication Date Title
WO2023005446A1 (zh) 烘干装置及涂布设备
WO2023005449A1 (zh) 一种涂布设备
CN103168209B (zh) 干燥装置及热处理系统
JP7350750B2 (ja) ウェブコーティング及びカレンダー加工システム並びに方法
KR101467640B1 (ko) 전극 건조 방법 및 전극 건조 장치
US11777072B2 (en) Electrode plate rolling apparatus and electrode plate rolling method
CN112853275B (zh) 一种超薄基膜的连续式卷绕真空镀膜方法
CN207038626U (zh) 压延机构及极片补锂装置
JP2012202600A (ja) 乾燥装置および熱処理システム
CN104878350A (zh) 一种新型高效镀铝设备
CN219850555U (zh) 一种涂布机
CN112795895A (zh) 一种用于卷绕式真空镀膜机的真空穿膜机构
JP5887437B2 (ja) 乾燥装置および熱処理システム
JP2013123671A (ja) 膜塗工機
CN116118079A (zh) 一种聚酰亚胺薄膜胶态剥离装置
CN217250339U (zh) 一种涂布烘干装置
KR20210152172A (ko) 배터리 전극 건조장치
EP4203088A1 (en) Drying apparatus for manufacturing electrode and method for manufacturing electrode using same
CN220707988U (zh) 一种新型隔膜烘干箱
CN220781075U (zh) 一种柔性功能薄膜的卷对卷连续制备设备
KR20230103091A (ko) 연료전지 제조용 건조 장치 및 방법
JP5545185B2 (ja) 熱遮蔽装置、ペースト付きシートの製造システム、ペースト付きシートの製造方法、及び、電極板の製造方法
CN218345540U (zh) 一种基于柔性基材双面镀膜卷绕装置及卷绕镀膜设备
US20240234678A9 (en) Electrode Sheet Drying Apparatus, Electrode Sheet Manufacturing System Comprising Same, and Electrode Sheet Drying Method
CN116475037A (zh) 一种涂布机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22848055

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022848055

Country of ref document: EP

Effective date: 20230525

NENP Non-entry into the national phase

Ref country code: DE