CN114739144A - Baking oven - Google Patents

Baking oven Download PDF

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Publication number
CN114739144A
CN114739144A CN202210515590.6A CN202210515590A CN114739144A CN 114739144 A CN114739144 A CN 114739144A CN 202210515590 A CN202210515590 A CN 202210515590A CN 114739144 A CN114739144 A CN 114739144A
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CN
China
Prior art keywords
hull
ship body
bottom end
electromagnetic induction
induction heating
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN202210515590.6A
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Chinese (zh)
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CN114739144B (en
Inventor
何志兴
施伟
杨赛强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Jiatuo Automation Technology Co ltd
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Guangdong Jiatuo Automation Technology Co ltd
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.)
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Application filed by Guangdong Jiatuo Automation Technology Co ltd filed Critical Guangdong Jiatuo Automation Technology Co ltd
Priority to CN202210515590.6A priority Critical patent/CN114739144B/en
Publication of CN114739144A publication Critical patent/CN114739144A/en
Application granted granted Critical
Publication of CN114739144B publication Critical patent/CN114739144B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • 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
    • 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
    • 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
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/12—Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area
    • 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
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • 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

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

Abstract

The invention discloses an oven, which comprises a drying box body, an upper ship body and a lower ship body, wherein the upper ship body and the lower ship body are arranged in an inner cavity of the drying box body, the front end and the rear end of the drying box body are respectively provided with a pole piece inlet and a pole piece outlet, one side of the drying box body is provided with an upper air inlet and a lower air inlet, the upper air inlet is communicated with the inner cavity of the upper ship body, the lower air inlet is communicated with the inner cavity of the lower ship body, the bottom end of the upper hull and the top end of the lower hull are provided with a hull interval for the pole pieces to pass through, the bottom end of the upper hull is provided with a plurality of upper air nozzles communicated with the inner cavity of the upper hull, the top end of the lower hull is provided with a plurality of lower air nozzles communicated with the inner cavity of the lower hull, the bottom end of the upper hull is provided with a plurality of electromagnetic induction heating plates, the plurality of upper air nozzles and the plurality of electromagnetic induction heating disks are alternately arranged at intervals along the length direction of the upper ship body, and the plurality of lower air nozzles are arranged at intervals along the length direction of the lower ship body. The invention can improve the drying efficiency and reduce the production cost.

Description

Baking oven
Technical Field
The invention relates to the field of lithium battery coating processing, in particular to an oven.
Background
In the coating process of the lithium battery pole piece, drying the pole piece by using an oven is an important part in the coating process of the lithium battery.
The existing drying oven used in the lithium battery coating and drying process generally adopts the air nozzles arranged on the upper ship body and the lower ship body to blow out hot air to realize drying of the pole pieces, and some air nozzles adopting hot air and infrared tube heating to combine together realize drying of the pole pieces.
Therefore, there is a need for an improved oven to solve the above technical problems.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the oven which can improve the drying efficiency and reduce the production cost.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an oven comprises a drying box body, an upper ship body and a lower ship body which are arranged in an inner cavity of the drying box body, the front end and the rear end of the drying box body are respectively provided with a pole piece inlet and a pole piece outlet, one side of the drying box body is provided with an upper air inlet and a lower air inlet, the upper air inlet is communicated with the inner cavity of the upper ship body, the lower air inlet is communicated with the inner cavity of the lower ship body, the bottom end of the upper hull and the top end of the lower hull are provided with a hull interval for the pole pieces to pass through, the bottom end of the upper hull is provided with a plurality of upper air nozzles communicated with the inner cavity of the upper hull, the top end of the lower hull is provided with a plurality of lower air nozzles communicated with the inner cavity of the lower hull, the bottom end of the upper hull is provided with a plurality of electromagnetic induction heating plates, the plurality of upper air nozzles and the plurality of electromagnetic induction heating disks are alternately arranged at intervals along the length direction of the upper ship body, and the plurality of lower air nozzles are arranged at intervals along the length direction of the lower ship body; or the top of lower hull is equipped with a plurality of electromagnetic induction heating plates, a plurality of tuyeres and a plurality of electromagnetic induction heating plate follow down the length direction interval arrangement in turn of hull, a plurality of last tuyeres are followed the length direction interval arrangement of last hull.
According to the preferable technical scheme, the bottom end of the upper ship body is provided with a plurality of electromagnetic induction heating plates, and each lower air nozzle corresponds to one electromagnetic induction heating plate.
According to the preferable technical scheme, the top end of the lower ship body is provided with a plurality of electromagnetic induction heating plates, and each upper air nozzle corresponds to one electromagnetic induction heating plate.
As a preferable technical scheme, the electromagnetic induction heating plate is arranged at the bottom end of the upper ship body through a support.
As a preferable technical solution, the electromagnetic induction heating plate includes a coil support, a base provided to a top end of the coil support, and a heating coil unit, a bottom end of the coil support is provided to a bottom end of the upper hull, a length direction of the coil support and the base is the same as a width direction of the upper hull, the base has an accommodation cavity penetrating through a top end and a bottom end thereof, the heating coil unit includes a plurality of heating coils, the plurality of heating coils are accommodated in the accommodation cavity and connected in series with each other, and the plurality of heating coils are respectively provided to the top end of the coil support.
Preferably, a longitudinal direction of the housing chamber is the same as a longitudinal direction of the base, and the plurality of heating coils are arranged at intervals in the longitudinal direction of the housing chamber.
As a preferred technical solution, the electromagnetic induction heating plate further includes a coil cover plate, and the coil cover plate is disposed to the top end of the base.
As a preferred technical scheme, a plurality of coil magnetic strips are arranged at the bottom end of the coil support.
As an optimized technical scheme, the top end and the bottom end of the drying box body are respectively provided with an air outlet and an air return inlet, and the air outlet and the air return inlet are respectively communicated with the inner cavity of the drying box body.
As preferred technical scheme, go up tuyere and lower tuyere's the same structure, all include the mount pad, set up outer shell spare and the inner shell spare on mount pad top, the through-hole has been seted up to the mount pad, the bottom of outer shell spare be equipped with a plurality of gas pockets of through-hole intercommunication, the open-top of outer shell spare, the inner shell spare sets up form two air-out passageways respectively in the open end of outer shell spare and between the both sides outer wall of inner shell spare and the both sides inner wall of outer shell spare.
The invention has the beneficial effects that: the pole piece drying device has the advantages that the pole piece drying device can dry pole pieces by adopting a mode of combining hot air drying and electromagnetic induction heating through the plurality of electromagnetic induction heating plates, compared with the prior art, the heat power of unit area is improved, the electromagnetic induction heating mode has the characteristics of quick response, high heating efficiency, adjustable power density, no heat transfer resistance, good stability, long service life and the like, the efficiency of drying the pole pieces is greatly improved, the production cost is reduced, and meanwhile, the plurality of upper air nozzles and the plurality of electromagnetic induction heating plates are alternately arranged at intervals along the length direction of the upper ship body, so that the pole pieces are uniformly heated, and the discharge of water vapor is facilitated.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural diagram of a front side of an oven according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the rear side of the oven shown in FIG. 1;
FIG. 3 is an exploded schematic view of the oven shown in FIG. 1;
FIG. 4 is an enlarged partial schematic view of FIG. 3 at F;
FIG. 5 is a schematic view of the bottom end of the drying cabinet of the oven of FIG. 1;
FIG. 6 is a schematic view of the construction of the lower tuyere of the oven shown in FIG. 1;
FIG. 7 is an exploded view of the lower tuyere of FIG. 6;
FIG. 8 is a cross-sectional schematic view of the lower tuyere shown in FIG. 6;
FIG. 9 is a schematic diagram of the structure of an electromagnetic induction heating disk of the oven shown in FIG. 1;
FIG. 10 is a schematic view of the bottom end of the electromagnetic induction heating disk of FIG. 9;
FIG. 11 is an exploded schematic view of a top view of the electromagnetic induction heating disk of FIG. 9;
FIG. 12 is an exploded view of the electromagnetic induction heating disk of FIG. 9 from a bottom perspective;
FIG. 13 is a schematic view of the bottom end of the coil support of the electromagnetic induction heating disk of FIG. 9;
FIG. 14 is a schematic view of the structure of a heating coil of the electromagnetic induction heating disk of FIG. 9;
FIG. 15 is a schematic structural view of a support member of the induction heating disk of FIG. 9;
fig. 16 is a schematic view of eight supporting members of the electromagnetic induction heating disk of fig. 9 in cooperation with two heating coils.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.
Referring to fig. 1 to 3, an oven according to an embodiment of the present invention includes a drying cabinet 10, and an upper hull 20 and a lower hull 30 disposed in an inner cavity of the drying cabinet 10. The upper hull 20 and the lower hull 30 are disposed opposite one another. The longitudinal direction of the upper hull 20 and the lower hull 30 is the same as the longitudinal direction of the drying cabinet 10.
The front end and the rear end of the drying box body 10 are respectively provided with a pole piece inlet and a pole piece outlet. The drying cabinet 10 is provided at a front side thereof with a cabinet door 12. An upper air inlet 14 and a lower air inlet 16 are provided at the rear side of the drying cabinet 10. The upper air inlet 14 and the lower air inlet 16 are close to the pole piece outlet, and the upper air inlet 14 is positioned right above the lower air inlet 16. The upper air inlet 14 is communicated with an inner cavity of the upper hull 20, specifically, an upper hull air inlet communicated with the inner cavity of the upper hull 20 is arranged on one side of the upper hull 20 close to the upper air inlet 14, and the upper hull air inlet is communicated with the upper air inlet 14 through a pipeline 22. The lower air inlet 16 is communicated with an inner cavity of the lower hull 30, specifically, a lower hull air inlet communicated with the inner cavity of the lower hull 30 is arranged at one side of the lower hull 30 close to the lower air inlet 16, and the lower hull air inlet is communicated with the lower air inlet 16 through a pipeline 32. The upper air inlet 14 and the lower air inlet 16 are respectively used for communicating with a heating device, the heating device is used for heating air to generate hot air, and the generated hot air can enter the inner cavity of the upper hull 20 through the upper air inlet 14, the pipeline 22 and the upper hull air inlet and enter the inner cavity of the lower hull 30 through the lower air inlet 16, the pipeline 32 and the lower hull air inlet. The bottom end of the upper hull 20 and the top end of the lower hull 30 have a hull space between them through which the lithium battery pole pieces 100 pass. The bottom end of the upper hull 20 is provided with a plurality of upper air nozzles 24 communicated with the inner cavity of the upper hull 20 and a plurality of electromagnetic induction heating plates 26, and the plurality of upper air nozzles 24 and the plurality of electromagnetic induction heating plates 26 are alternately arranged at intervals along the length direction of the upper hull 20. The length direction of the upper tuyere 24 and the electromagnetic induction heating plate 26 is the same as the width direction of the upper hull 20. The top end of the lower hull 30 is provided with a plurality of lower nozzles 34 communicated with the inner cavity of the lower hull 30, and the plurality of lower nozzles 34 are arranged at intervals along the length direction of the lower hull 30. The length direction of the lower nozzle 34 is the same as the width direction of the lower hull 30.
Through the structure, in practical application, the lithium battery pole piece 100 enters from the pole piece inlet of the drying box body 10 and exits from the pole piece outlet of the drying box body 10 after passing through the hull space between the upper hull 20 and the lower hull 30, when the pole piece 100 passes through the hull space between the upper hull 20 and the lower hull 30, hot air entering the inner cavity of the upper hull 20 through the upper air inlet 14 can be blown to the upper surface of the pole piece 100 through the plurality of upper air nozzles 24, hot air entering the inner cavity of the lower hull 30 through the lower air inlet 16 can be blown to the lower surface of the pole piece 100 through the plurality of lower air nozzles 34, so that the pole piece 100 is dried, meanwhile, an eddy current can be generated inside the pole piece 100 through the induction magnetic field generated by the plurality of electrified electromagnetic induction heating plates 26, so that the pole piece 100 can be heated, and thus the drying 100 can be realized. According to the invention, the pole piece 100 can be dried by adopting a mode of combining hot air drying and electromagnetic induction heating through the plurality of electromagnetic induction heating plates, compared with the prior art, the heat power of a unit area is improved, and the electromagnetic induction heating mode has the characteristics of quick response, high heating efficiency, adjustable power density, no heat transfer resistance, good stability, long service life and the like, so that the efficiency of drying the pole piece 100 is greatly improved, the production cost is reduced, and meanwhile, the plurality of upper air nozzles 24 and the plurality of electromagnetic induction heating plates 26 are alternately arranged at intervals along the length direction of the upper ship body 20, so that the pole piece 100 can be uniformly heated, and the discharge of water vapor is facilitated.
In this embodiment, the number of the upper nozzles 24 and the number of the lower nozzles 34 are the same, and are seven, and the number of the electromagnetic induction heating plates 26 is six. It is to be understood that the number of the upper nozzles 24, the lower nozzles 34, and the electromagnetic induction heating disk 26 may be set according to actual circumstances.
In this embodiment, a plurality of air nozzles 24 and a plurality of air nozzles 34 are arranged in a staggered manner, that is, each air nozzle 34 corresponds to one electromagnetic induction heating plate 26, and this kind of structure can realize uniform drying of pole piece 100.
In an alternative, the plurality of electromagnetic induction heating plates 26 are arranged at the top end of the lower hull 30, the plurality of lower nozzles 34 and the plurality of electromagnetic induction heating plates 26 are alternately arranged at intervals along the length direction of the lower hull 30, and the plurality of upper nozzles 24 are arranged at intervals along the length direction of the upper hull 20. The upper air nozzles 24 and the lower air nozzles 34 are arranged in a staggered mode, namely each upper air nozzle 24 corresponds to one electromagnetic induction heating plate 26, and the pole piece 100 can be uniformly dried by the aid of the structure.
In this embodiment, the upper hull 20 and the lower hull 30 have the same structure, the upper hull 20 and the lower hull 30 are respectively disposed in the inner cavity of the drying cabinet 10 through the adjustable connection assembly 40, and the mounting heights of the upper hull 20 and the lower hull 30 can be adjusted through the adjustable connection assembly 40, so as to further control the size of the hull space between the upper hull 20 and the lower hull 30. Specifically, as shown in fig. 4, the adjustable connection assembly 40 includes a first connection block 42 fixed at the bottom or the top of the inner cavity of the drying cabinet 10, and a second connection block 44 fixed at the side wall of the upper hull 20 or the lower hull 30, wherein the first connection block 42 and the second connection block 44 are provided with an adjustment screw 46, an adjustment nut 48 is located between the first connection block 42 and the second connection block 44 and is in threaded fit with the adjustment screw 46, and the height of the upper hull 20 or the lower hull 30 can be adjusted through the adjustment screw 46 and the adjustment nut 48.
In this embodiment, the upper hull 20 and the lower hull 30 are respectively disposed in the inner cavity of the drying cabinet 10 through four adjustable connection assemblies 40. It will be appreciated that the number of adjustable connection assemblies 40 may be set as desired.
Referring to fig. 5, the top and bottom of the drying cabinet 10 are respectively provided with an air outlet 17 and an air return 18, and the air outlet 17 and the air return 18 are respectively communicated with the inner cavity of the drying cabinet 10. The air outlet 17 is close to the pole piece outlet of the drying box body 10, and the air return inlet 18 is close to the pole piece inlet of the drying box body 10. The return air opening 18 is used for communicating with the heating device. In practical application, a part of the hot air after drying the pole piece 100 is discharged through the air outlet 17, and the rest of the hot air after drying the pole piece 100 enters the heating device through the air return opening 18 to be heated again through the heating device, so that recycling can be realized.
Further, an air brake device 172 for adjusting the air volume is arranged at the air outlet 17.
As shown in fig. 6 to 8, the lower nozzle 34 of the present embodiment includes a mounting base 341, an outer shell member 342 and an inner shell member 344 provided to a top end of the mounting base 341. The mounting seat 341 has a through hole 3412, the bottom end of the outer shell 342 has a plurality of air holes 3422 communicated with the through hole 3412, the top end of the outer shell 342 is open, the inner shell 344 is disposed in the open end of the outer shell 342, and two air outlet channels 348 are respectively formed between the outer walls of two sides of the inner shell 344 and the inner walls of two sides of the outer shell 342.
The upper nozzle 24 and the lower nozzle 34 have the same structure, including the above structure. The mounting seat 341 of the upper tuyere 24 is arranged at the bottom end of the upper hull 20, the length direction of the mounting seat 341 is the same as the width direction of the upper hull 20, the bottom end of the upper hull 20 is provided with an upper hull air outlet at a position corresponding to the through hole 3412 of the mounting seat 341, and the through hole 3412 of the mounting seat 341 is communicated with the inner cavity of the upper hull 20 through the corresponding upper hull air outlet. The mounting seat 341 of the lower nozzle 34 is provided to the top end of the lower hull 30, the length direction of the mounting seat 341 is the same as the width direction of the lower hull 30, the top end of the lower hull 30 is provided with a lower hull air outlet at a position corresponding to the through hole 3412 of the mounting seat 341, and the through hole 3412 of the mounting seat 341 is communicated with the inner cavity of the lower hull 30 through the corresponding lower hull air outlet. In practical application, hot air entering the inner cavity of the upper hull 20 can enter the outer shell 342 of the upper nozzle 24 through the air outlet of the upper hull, the through hole 3412 of the mounting seat 341 of the upper nozzle 24 and the plurality of air holes 3422 of the outer shell 342 of the upper nozzle 24, and then is blown to the upper surface of the pole piece 100 through the two air outlet channels 348 of the upper nozzle 24, and hot air entering the inner cavity of the lower hull 30 can enter the outer shell 342 of the lower nozzle 34 through the air outlet of the lower hull, the through hole 3412 of the mounting seat 341 of the lower nozzle 34 and the plurality of air holes 3422 of the outer shell 342 of the lower nozzle 34, and then is blown to the lower surface of the pole piece 100 through the two air outlet channels 348 of the lower nozzle 34, so as to dry the pole piece 100.
Furthermore, two inclined planes 344a are arranged on two sides of the bottom end of the inner shell 344, the two inclined planes 344a are inverted-splayed, the two inclined planes 344a can guide hot air to flow, the hot air entering the outer shell 342 can be guided to the two air outlet channels 348, two inclined planes 342a inclined in opposite directions are arranged on two sides of the top end of the outer shell 342, the two inclined planes 342a are splayed, the two inclined planes 342a can enable the width of the two air outlet channels 348 to be gradually reduced along the direction close to the end face of the top end of the inner shell 344, and the speed of blowing the hot air can be improved.
In this embodiment, an electromagnetic induction heating disk 26 is provided to the bottom end of the upper hull 20 via a U-shaped bracket 28.
Referring to fig. 9 to 12, in particular, the electromagnetic induction heating disk 26 includes a coil support 262, a pedestal 264 provided to a top end of the coil support 262, a heating coil unit 266, and a coil cover 268.
The bottom end of the coil support 262 is arranged at the bottom end of the upper hull 20 through the U-shaped support 28, and specifically, the bottom end of the coil support 262 is provided with the U-shaped support 28, and the U-shaped support 28 is arranged at the bottom end of the upper hull 20, so that the electromagnetic induction heating plate 26 is arranged at the bottom end of the upper hull 20 through the U-shaped support 28.
In this embodiment, there are three U-shaped brackets 28, and it is understood that the number of the U-shaped brackets 28 can be set according to actual situations.
The longitudinal direction of the coil support 262 and the base 264 is the same as the width direction of the upper hull 20. The base 264 has an accommodating chamber 2642 penetrating top and bottom ends thereof, and the heating coil unit 266 includes a plurality of heating coils 2662, the plurality of heating coils 2662 are accommodated in the accommodating chamber 2642 and connected in series with each other, and the plurality of heating coils 2662 are not in contact with an inner wall of the accommodating chamber 2642. The plurality of heating coils 2662 are used to generate an induction magnetic field when energized, thereby enabling heating of the pole piece 100. The plurality of heating coils 2662 are respectively provided to the top ends of the coil holders 262 so that the plurality of heating coils 2662 can be supported by the coil holders 262. A coil cover 268 is provided to a top end of the base 264, the coil cover 268 does not contact the plurality of heating coils 2662, and the coil cover 268 prevents water vapor from entering the accommodating chamber 2642 and protects the plurality of heating coils 2662.
Through the above structure, the present invention employs a plurality of heating coils 2662 connected in series with each other and the plurality of heating coils 2662 are all disposed at the top end of the coil support 262, so that the plurality of heating coils 2662 are located at the same horizontal plane, and after the plurality of heating coils 2662 are energized, the induced magnetic field generated by the plurality of heating coils 2662 can be uniformly distributed on the surface of the pole piece 100, so that uniform eddy current can be generated in the pole piece 100, thereby uniformly heating the pole piece 100, improving heating efficiency, further improving efficiency of drying the pole piece 100, and reducing production cost.
In this embodiment, the longitudinal direction of the accommodating chamber 2642 is the same as the longitudinal direction of the base 264, and the plurality of heating coils 2662 are provided at intervals along the longitudinal direction of the accommodating chamber 2642.
In other embodiments, the plurality of heating coils 2662 may also be distributed in an array, for example, four heating coils 2662 are distributed in a 2 × 2 array assuming that the number of heating coils 2662 is four.
In this embodiment, the number of the heating coil units 266 is plural, for example, two, and the two heating coil units 266 are sequentially arranged at intervals from bottom to top. The number of the heating coils 2662 of each heating coil unit 266 is nine, and it is understood that the number of the heating coil units 266 may also be, for example, one, three, four, or the like, and the number of the heating coil units 266 and the number of the heating coils 2662 may be set according to actual circumstances.
As shown in connection with fig. 14, the heating coil 2662 is a planar spiral coil.
As shown in fig. 12 and 13 in combination, the bottom end of the coil support 262 is formed with a coil region at a position corresponding to each of the heating coils 2662, and a plurality of through holes 2622 are formed at the edge of the coil region around the center of the coil region. The provision of the through-hole 2622 facilitates heat dissipation from the heating coil 2662.
The number of the through holes 2622 in the present embodiment is eight, and it can be understood that the number of the through holes 2622 can be set according to actual situations.
Adjacent through holes 2622 are separated by a partition 2624. The number of the baffles 2624 corresponds to the number of the through holes 2622, and is also eight.
The bottom end of the coil holder 262 is provided with a plurality of coil magnetic strips 2626. Specifically, the plurality of coil magnetic strips 2626 are disposed at the bottom end of one partition 2624 in a one-to-one correspondence. The coil magnetic strips 2626 act to shield the magnetic field lines so that the plurality of heating coils 2662 heat the pole piece 100 only in a direction close to the coil cover 268, i.e., downward, thereby increasing the heating efficiency.
As shown in fig. 11, the supporting members 269 are provided at the top end of each of the partition plates 2624, respectively, so that the number of the supporting members 269 for each coil region is eight, and each of the heating coils 2662 is provided to the top end of the coil support 262 through the eight supporting members 269, respectively.
Specifically, as shown in fig. 15, the supporter 269 includes a supporter body 2692 provided to the top end of the corresponding partition 2624, the top end of the supporter body 2692 is provided with a plurality of grooves 2694 at intervals in the length direction of the supporter body 2692, the number of the grooves 2694 corresponds to the number of turns of the heating coil 2662, in the present embodiment, the number of the grooves 2694 corresponds to five if the number of turns of the heating coil 2662 is five, and since the heating coil unit 266 of the present embodiment is two, the heating coil 2662 corresponding to each coil region is two, and both the heating coils 2662 are fitted into the grooves 2694 of the eight supporters 269, as shown in fig. 16, so that the arrangement of the corresponding two heating coils 2662 to the top end of the coil holder 262 can be achieved by the eight supporters 269.
The support 269 is preferably an epoxy member and functions to insulate the coil holder 262 and the heating coil 2662. The base 264 and the coil cover 268 are preferably silicone pieces.
In this embodiment, the base 264 is formed by two superimposed rectangular frames. The two rectangular frame cavities form the receiving cavity 2642.
In other embodiments, the base 264 may comprise only a rectangular frame, and the inner cavity of the rectangular frame forms the receiving cavity 2642. The number of the rectangular frames can be set according to actual conditions.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. An oven comprises a drying box body, an upper ship body and a lower ship body, wherein the upper ship body and the lower ship body are arranged in an inner cavity of the drying box body, a pole piece inlet and a pole piece outlet are respectively formed in the front end and the rear end of the drying box body, an upper air inlet and a lower air inlet are formed in one side of the drying box body, the upper air inlet is communicated with the inner cavity of the upper ship body, the lower air inlet is communicated with the inner cavity of the lower ship body, a ship body interval for pole pieces to pass through is formed between the bottom end of the upper ship body and the top end of the lower ship body, a plurality of upper air nozzles communicated with the inner cavity of the upper ship body are arranged at the bottom end of the upper ship body, a plurality of lower air nozzles communicated with the inner cavity of the lower ship body are arranged at intervals along the length direction of the upper ship body, and a plurality of electromagnetic induction heating plates are arranged at intervals alternately at the bottom end of the upper air nozzles and the lower air nozzles, the plurality of lower air nozzles are arranged at intervals along the length direction of the lower ship body; or the top of lower hull is equipped with a plurality of electromagnetic induction heating plates, a plurality of tuyeres and a plurality of electromagnetic induction heating plate follow down the length direction interval arrangement in turn of hull, a plurality of last tuyeres are followed the length direction interval arrangement of last hull.
2. The oven of claim 1, wherein the bottom end of the upper hull is provided with a plurality of electromagnetic induction heating plates, one for each lower tuyere.
3. The oven of claim 1, wherein the lower hull is provided with a plurality of electromagnetic induction heating plates at the top end, one electromagnetic induction heating plate for each upper tuyere.
4. The oven of claim 2, wherein the electromagnetic induction heating disk is provided to the bottom end of the upper hull by a bracket.
5. The oven of claim 2, wherein the electromagnetic induction heating plate comprises a coil support, a base provided to a top end of the coil support, and a heating coil unit, a bottom end of the coil support is provided to a bottom end of the upper hull, a length direction of the coil support and the base is the same as a width direction of the upper hull, the base has a receiving cavity penetrating through a top end and a bottom end thereof, the heating coil unit comprises a plurality of heating coils, the plurality of heating coils are received in the receiving cavity and are connected in series, and the plurality of heating coils are respectively provided to the top end of the coil support.
6. The oven set forth in claim 5, wherein the length direction of the receiving cavity is the same as the length direction of the base, and the plurality of heating coils are arranged at intervals along the length direction of the receiving cavity.
7. The oven set forth in claim 5, wherein said electromagnetic induction heating pan further comprises a coil cover plate disposed to a top end of said base.
8. Oven according to claim 5, characterized in that the bottom end of the coil support is provided with a plurality of coil magnetic strips.
9. The oven of claim 1, wherein the top end and the bottom end of the drying box body are respectively provided with an air outlet and an air return inlet, and the air outlet and the air return inlet are respectively communicated with the inner cavity of the drying box body.
10. The oven according to claim 1, wherein the upper tuyere and the lower tuyere have the same structure, and each of the upper tuyere and the lower tuyere comprises a mounting seat, an outer casing member and an inner casing member, the outer casing member and the inner casing member are arranged at the top end of the mounting seat, the mounting seat is provided with a through hole, the bottom end of the outer casing member is provided with a plurality of air holes communicated with the through hole, the top end of the outer casing member is provided with an opening, the inner casing member is arranged in the opening end of the outer casing member, and two air outlet channels are respectively formed between the outer walls at two sides of the inner casing member and the inner walls at two sides of the outer casing member.
CN202210515590.6A 2022-05-11 2022-05-11 Baking oven Active CN114739144B (en)

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CN115325807A (en) * 2022-07-29 2022-11-11 广东利元亨智能装备股份有限公司 Pole piece drying device
CN116351668A (en) * 2023-03-06 2023-06-30 四川嘉拓智能设备有限公司 Heating unit and oven
WO2024021934A1 (en) * 2022-07-29 2024-02-01 比亚迪股份有限公司 Coater oven

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CN108480162A (en) * 2018-05-21 2018-09-04 深圳市新嘉拓自动化技术有限公司 A kind of split type coating machine drying oven of modularization
CN112985043A (en) * 2019-12-17 2021-06-18 亚智科技股份有限公司 Air knife structure and mechanism thereof

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JP2007141540A (en) * 2005-11-16 2007-06-07 Matsushita Electric Ind Co Ltd Manufacturing method and device of electrode plate
CN201425411Y (en) * 2009-01-09 2010-03-17 深圳市宝德自动化精密设备有限公司 Drying device and air knife equipment thereof
CN202229553U (en) * 2011-09-05 2012-05-23 浙江昱辉阳光能源有限公司 Air dryer and air box thereof
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CN116351668A (en) * 2023-03-06 2023-06-30 四川嘉拓智能设备有限公司 Heating unit and oven

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