A coating oven air nozzle auxiliary device
By setting air regulating plates and baffles with different apertures in the auxiliary device of the coating oven nozzle, the problem of uneven drying speed of the electrode sheet was solved, the drying quality of the electrode sheet was improved and the energy consumption was reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI LIHUA ELECTRIC POWER TECHNOLOGY CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional coating oven nozzles cannot adjust the local air volume, resulting in uneven drying speeds in the middle and edges of the electrode, which can easily lead to problems such as edge cracking and white bulging.
Design an auxiliary device for the air nozzle of a coating oven. By setting up air regulating plates and baffles with different aperture sizes, the air volume can be adjusted and concentrated to avoid the continuous blowing of hot air on the blank areas.
This improved the quality of electrode drying, avoiding problems such as over-drying and cracking, as well as localized incomplete drying, thus increasing energy utilization and reducing energy consumption.
Smart Images

Figure CN224443628U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrode drying technology, specifically to an auxiliary device for the nozzle of a coating oven. Background Technology
[0002] In battery manufacturing, the preparation of positive and negative electrodes requires coating a foil with a wet slurry containing the active materials of the positive and negative electrodes. Then, a coating oven uses hot air to blow heat onto the surface of the coated electrodes, vaporizing and expelling the solvent to achieve drying. Traditional coating ovens use nozzles to blow hot air to dry the electrodes, but these nozzles typically cannot adjust the local airflow. However, in actual production, the slurry coating on the electrodes is not uniform; usually, there is more slurry in the center of the electrode than at the edges. This leads to differences in the required hot airflow and drying time between the center and edges, causing the edges to dry before the center. When the center dries, the edges are prone to cracking. Furthermore, most electrode coatings are applied continuously, while lithium-ion battery electrodes are coated in segments. Continuous coating creates blank areas on the continuous electrodes. If these blank areas are exposed to hot air during drying, they can easily bulge, resulting in uneven electrodes. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an auxiliary device for the nozzle of a coating oven. By setting a first air regulating plate and a second air regulating plate with different aperture sizes, the air volume can be adjusted, thereby adjusting the drying speed. At the same time, a third air regulating plate is also set to block the wind, so as to avoid the continuous hot air blowing in the blank area, improve the drying quality of the electrode sheet, and avoid defects such as over-drying and cracking and local incomplete drying.
[0004] The objective of this utility model is achieved through the following technical measures: a coating oven nozzle auxiliary device, comprising:
[0005] Two support plates are arranged opposite each other. The bottom of the support plates is connected to the outer wall of the oven air nozzle, and the top of the support plates is provided with a slide rail.
[0006] The mounting bracket has edge wind deflectors installed at both ends and multiple air regulating plates installed between the two edge wind deflectors. The mounting bracket also has pulleys on both sides, which are used in conjunction with slide rails.
[0007] The air regulating plate includes one or more of a first air regulating plate, a second air regulating plate, and a third air regulating plate. The first air regulating plate has a plurality of first air holes, the second air regulating plate has a plurality of second air holes, and the third air regulating plate is a wind baffle. The diameter of the first air holes is greater than or less than the diameter of the second air holes.
[0008] The edge baffle includes a top plate, a connecting plate connected to the top plate, and a sealing gasket connected to the edge of the connecting plate. When the auxiliary device is installed on the oven nozzle, the sealing gasket is sealed to the outer wall of the nozzle.
[0009] In some embodiments, the mounting bracket includes a horizontal bracket with pulleys connected to both ends, a vertical bracket connected to the top of the horizontal bracket, and the top of the vertical bracket connected to an edge wind deflector and a wind regulating plate.
[0010] In some embodiments, the top of the longitudinal support is detachably connected to the edge baffle and the air regulating plate.
[0011] In some embodiments, the longitudinal support is provided with an elongated through hole, and the edge baffle and the air regulating plate are connected to the elongated through hole by screws.
[0012] In some embodiments, the edge wind deflector is further provided with fasteners, and the edge wind deflector is connected to the outer wall of the air nozzle by the fasteners.
[0013] In some embodiments, the fastener is a hook that is connected to a locking buckle provided on the outer wall of the nozzle; or, the fastener is a fixing pin that is connected to a fixing pin holder provided on the outer wall of the nozzle.
[0014] In some embodiments, the slide rail is provided with a sliding bar.
[0015] In some embodiments, the connecting plate is provided with a clearance step, which is used to avoid the slide rail.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides an auxiliary device located outside the nozzle of a coating oven. By setting a first and a second air regulating plate with different orifice sizes, the air volume can be adjusted, thereby adjusting the drying speed. A third air regulating plate is also provided to block the airflow, preventing continuous hot air from blowing into the blank areas, improving the drying quality of the electrode sheets, and avoiding defects such as over-drying and cracking, and localized incomplete drying. The mounting bracket and support plate are connected to the support plate via pulleys and slide rails, facilitating the overall replacement of the mounting bracket and thus the overall replacement of the air regulating plate layout. The air regulating plate and edge baffle are detachably connected to the mounting bracket, allowing for easy adjustment of the air regulating plate layout according to the electrode sheet drying needs, improving the applicability of the auxiliary device. The edge baffle also prevents hot air from overflowing from both ends of the support plate, concentrating the airflow so that hot air is blown out from the first and second air holes, improving energy utilization and reducing energy consumption.
[0017] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0018] Figure 1This is an assembly drawing of the utility model and the air nozzle.
[0019] Figure 2 This is a structural diagram of the mounting bracket.
[0020] Figure 3 This is a structural schematic diagram of the support plate.
[0021] Figure 4 This is a structural diagram of the edge wind deflector. Figure 1 .
[0022] Figure 5 This is a structural diagram of the edge wind deflector. Figure 2 .
[0023] Among them, 1. support plate, 2. edge wind deflector, 3. first air regulating plate, 4. second air regulating plate, 5. third air regulating plate, 6. air nozzle, 7. locking buckle, 8. longitudinal bracket, 9. transverse bracket, 10. pulley, 11. slide rail, 12. sliding strip, 13. top plate, 14. connecting plate, 15. sealing gasket, 16. hook, 17. fixing pin, 18. long strip through hole. Detailed Implementation
[0024] like Figures 1 to 5 As shown, a coating oven nozzle auxiliary device includes: two opposing support plates 1, the bottom of the support plates 1 being connected to the outer wall of the oven nozzle 6, and the top of the support plates 1 being provided with a slide rail 11.
[0025] The mounting bracket has edge wind deflectors 2 installed at both ends, and multiple air regulating plates installed between the two edge wind deflectors 2. The mounting bracket also has pulleys 10 on both sides, which cooperate with slide rails 11. Specifically, the pulleys 10 can slide within the slide rails 11, thereby allowing the support plate 1 to be flexibly installed into or removed from the mounting bracket through the cooperation of the pulleys 10 and the slide rails 11. The edge wind deflectors 2, air regulating plates, and multiple air regulating plates are arranged side-by-side on the mounting bracket and connected to the mounting bracket by screws.
[0026] The air regulating plate is one or more of a first air regulating plate 3, a second air regulating plate 4, and a third air regulating plate 5. The first air regulating plate 3 has multiple first air holes, the second air regulating plate 4 has multiple second air holes, and the third air regulating plate 5 is a baffle plate. Specifically, the baffle plate is an air regulating plate without air holes, and the diameter of the first air holes is larger or smaller than the diameter of the second air holes. By setting air holes of different sizes on the first air regulating plate 3 and the second air regulating plate 4, the air holes with larger diameters have a larger air volume, and the air holes with smaller diameters have a smaller air volume. This allows the first air regulating plate 3 and the second air regulating plate 4 to correspond to different drying air volumes, thereby adjusting the drying speed of their respective areas. Furthermore, the third air regulating plate 5 is provided to prevent continuous hot air from blowing into the blank areas, improving the drying quality of the electrode sheets and avoiding defects such as over-drying and cracking, and localized incomplete drying.
[0027] The edge baffle 2 includes a top plate 13, which is connected to a connecting plate 14. A sealing gasket 15 is connected to the edge of the connecting plate 14. When the auxiliary device is installed on the oven nozzle 6, the sealing gasket 15 is sealed to the outer wall of the nozzle 6. The edge baffle 2 prevents hot air from escaping from both ends of the support plate 1, concentrates the airflow, and allows hot air to be blown out from the first and second air holes, improving energy utilization and reducing energy consumption.
[0028] In some embodiments, the mounting bracket includes a horizontal bracket 9, with pulleys 10 connected to both ends of the horizontal bracket 9, and a vertical bracket 8 connected to the top of the horizontal bracket 9. The top of the vertical bracket 8 is connected to the edge wind deflector 2 and the wind regulating plate.
[0029] In some embodiments, there are two longitudinal supports 8, with each end of the edge wind deflector 2 and the air regulating plate connected to one longitudinal support 8. There are two transverse supports 9, each connected to one end of the longitudinal support 8.
[0030] In some embodiments, the top of the longitudinal support 8 is detachably connected to the edge baffle 2 and the air regulating plate, which facilitates the flexible installation or removal of the air regulating plate and the edge baffle 2. This allows for the selection of different air regulating plates based on the coating and blanking of the electrode sheets, resulting in different combinations and improving the applicability of the auxiliary device.
[0031] In some embodiments, the longitudinal support 8 is provided with an elongated through hole 18, and the edge wind deflector 2 and the wind regulating plate are connected to the elongated through hole 18 by screws.
[0032] In some embodiments, the edge wind deflector 2 is further provided with fasteners, and the edge wind deflector 2 is connected to the outer wall of the air nozzle 6 via the fasteners. The mounting bracket is fixed to the air nozzle 6 by the fasteners to prevent the mounting bracket from moving relative to the support plate 1 during use.
[0033] In some embodiments, the fastener is a hook 16, which is connected to a locking buckle 7 located on the outer wall of the air nozzle 6. The locking buckle 7 on the outer wall of the air nozzle 6 engages with the hook 16 on the edge wind deflector 2, thereby fixing the edge wind deflector 2 and restricting the movement of the mounting bracket. Alternatively, the fastener is a fixing pin 17, which is connected to a fixing pin holder located on the outer wall of the air nozzle 6. The fixing pin 17 is inserted into the fixing pin holder on the outer wall of the air nozzle 6, thereby fixing the edge wind deflector 2 and restricting the movement of the mounting bracket.
[0034] In some embodiments, a sliding bar 12 is provided within the slide rail 11. Specifically, the sliding bar 12 and the slide rail 11 are connected to the support plate 1 by screws. The pulley 10 slides within the sliding bar 12. The sliding bar 12 prevents the pulley 10 from wearing down the slide rail 11.
[0035] In some embodiments, the connecting plate 14 is provided with a clearance step, which is used to avoid the slide rail 11. Specifically, the top plate 13 has threaded holes, and the top plate 13 is connected to the longitudinal bracket 8 by screws. When the edge wind deflector 2 is installed on the mounting bracket, the longitudinal bracket 8 and the slide rail 11 are respectively located on both sides of the connecting plate 14 and at the clearance step.
[0036] In the description of this utility model, it should be understood that the term "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0039] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.
Claims
1. A coating oven air nozzle assist device characterized by, include: Two support plates are arranged opposite each other. The bottom of the support plates is connected to the outer wall of the oven air nozzle, and the top of the support plates is provided with a slide rail. The mounting bracket has edge wind deflectors installed at both ends and multiple air regulating plates installed between the two edge wind deflectors. The mounting bracket also has pulleys on both sides, which are used in conjunction with slide rails. The air regulating plate includes one or more of a first air regulating plate, a second air regulating plate, and a third air regulating plate. The first air regulating plate has a plurality of first air holes, the second air regulating plate has a plurality of second air holes, and the third air regulating plate is a wind baffle. The diameter of the first air holes is greater than or less than the diameter of the second air holes. The edge baffle includes a top plate, a connecting plate connected to the top plate, and a sealing gasket connected to the edge of the connecting plate. When the auxiliary device is installed on the oven nozzle, the sealing gasket is sealed to the outer wall of the nozzle.
2. The coating oven air nozzle assist device of claim 1, wherein: The mounting bracket includes a horizontal bracket with pulleys connected to both ends, a vertical bracket connected to the top of the horizontal bracket, and the top of the vertical bracket connected to an edge wind deflector and an air regulating plate.
3. The coater oven air nozzle assist device of claim 2, wherein: The top of the longitudinal support is detachably connected to the edge baffle and air regulating plate.
4. The coater oven air knife assist device of claim 3, wherein: The longitudinal support is provided with an elongated through hole, and the edge wind deflector and wind regulating plate are connected to the elongated through hole by screws.
5. The coating oven air nozzle assist device of claim 1, wherein: The edge wind deflector is also provided with fasteners, and the edge wind deflector is connected to the outer wall of the air nozzle through the fasteners.
6. The coating oven air nozzle assist device of claim 5, wherein: The fastener is a hook, which is connected to a locking buckle on the outer wall of the nozzle; or the fastener is a fixing pin, which is connected to a fixing pin holder on the outer wall of the nozzle.
7. The coater oven air nozzle assist device of claim 1, wherein: The slide rail is equipped with a sliding bar.
8. The coater oven air nozzle assist device of claim 1, wherein: The connecting plate is provided with a clearance step, which is used to avoid the slide rail.