Multi-slit air outlet pole piece drying air nozzle, oven and coating machine

Abstract

The utility model discloses a kind of pole piece drying air nozzle of multiple slit air outlet, oven and coating machine, pole piece drying air nozzle includes air nozzle shell, with air outlet cavity, the air outlet opening being communicated with air outlet cavity;First shunt, be set in air outlet cavity and close to air outlet opening, multiple first shunt are arranged along the radial direction of air outlet opening, the inner wall of air nozzle shell and the outer wall of adjacent first shunt form first air outlet passage;Second shunt, be set between first shunt, the outer wall of second shunt and the outer wall of adjacent first shunt form second air outlet passage.Oven, applied above-mentioned pole piece drying air nozzle of multiple slit air outlet.Coating machine includes pole piece drying air nozzle of multiple slit air outlet and oven, and pole piece drying air nozzle is set on oven.

Description

Technical Field

[0001] This utility model relates to the field of electrode drying technology, and in particular to an electrode drying nozzle with multiple narrow slits, an oven, and a coating machine. Background Technology

[0002] In the intelligent battery manufacturing industry, coating ovens are mainly used for drying electrode slurry. However, the air outlets of existing oven nozzles are mainly located on both sides of the nozzle along its width, resulting in inaccurate drying efficiency in the width direction of the electrode. Due to the limitations of traditional nozzle structures in airflow distribution and insufficient air outlet channel density, it is difficult to achieve uniform hot air coverage on the surface of the electrode, easily leading to localized under-drying or over-drying. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a multi-slit air outlet electrode drying nozzle, an oven, and a coating machine, wherein the oven and coating machine utilize the multi-slit air outlet electrode drying nozzle provided in this application. The multi-slit air outlet electrode drying nozzle provided in this application can improve the uniformity of electrode drying and enhance the drying quality of the electrode.

[0004] In a first aspect, the multi-slit air outlet electrode drying nozzle according to an embodiment of the present invention includes:

[0005] The nozzle housing has an air outlet cavity and an air outlet opening communicating with the air outlet cavity;

[0006] The first diverter is disposed in the air outlet cavity and close to the air outlet opening. Multiple first diverters are arranged at intervals along the radial direction of the air outlet opening. The inner wall of the nozzle housing and the outer wall of the adjacent first diverter form a first air outlet channel.

[0007] The second diverter is disposed between the first diverters, and the outer wall of the second diverter and the outer wall of the adjacent first diverter form a second air outlet channel.

[0008] The electrode drying nozzle with multiple slits according to the embodiments of this utility model has at least the following beneficial effects: The electrode drying nozzle provided in this application achieves multi-slit airflow supply through multiple diverting components. Specifically, the structure of the nozzle shell forms a basic airflow channel, and the air outlet serves as the final airflow output port. The design of the first diverting components arranged radially at intervals forms a first air outlet channel between the inner wall of the nozzle shell and the outer wall of the first diverting component. The second diverting component is inserted between the first diverting components, and its outer wall cooperates with the outer wall of the adjacent first diverting component to form a second air outlet channel. The nested structure increases the density of the air outlet channels within a limited space. Through the synergistic effect of the first and second air outlet channels, multiple slit-type air outlet channels are formed at the air outlet of the nozzle, achieving multi-point precise air delivery in the electrode width direction. The combination design of radially spaced arrangement and nested diverting ensures both the uniformity of airflow and improves the coverage accuracy of the drying airflow on the electrode surface.

[0009] According to the multi-slit air outlet electrode drying nozzle of the present utility model embodiment, both the first air outlet channel and the second air outlet channel are inclined, and the airflow output from the first air outlet channel and the airflow output from the adjacent second air outlet channel can approach and converge with each other.

[0010] Alternatively, both the first and second air outlet channels are inclined, allowing the airflow output from the first air outlet channel and the airflow output from the second air outlet channel, as well as the airflow output from the second air outlet channel located on both sides of the first diverter, to approach and converge.

[0011] According to the embodiment of the present invention, the multi-slit air outlet electrode drying nozzle further includes a return air structure, which includes a return air inlet disposed between the first air outlet channel and the second air outlet channel. The return air inlet is used to discharge the turbulence formed by the convergence of airflow between the air outlet channels.

[0012] Alternatively, it may also include a return air structure, which includes a return air inlet. A return air inlet is provided between the first air outlet channel and the second air outlet channel, as well as between the second air outlet channels located on both sides of the first diverter. The return air inlet is used to discharge the turbulence formed by the convergence of airflow between the air outlet channels.

[0013] According to the embodiment of the present invention, the multi-slit air outlet electrode drying nozzle further includes a return air cavity in the return air structure. The return air cavity is connected to the return air inlet, and the return air inlet allows the turbulent flow formed by the convergence of airflows to pass through and enter the return air cavity.

[0014] According to an embodiment of the present invention, the multi-slit air outlet electrode drying nozzle has a return air cavity with a return air outlet for discharging the airflow in the return air cavity to the outside of the nozzle housing.

[0015] According to an embodiment of the present invention, a multi-slit air outlet electrode drying nozzle has a return air structure disposed on a first diverter. The first diverter has a hollow structure to form a return air cavity. The first diverter has a return air inlet near the air outlet opening, and multiple return air inlets are arranged in a matrix.

[0016] According to the embodiment of the present invention, the electrode drying nozzle with multiple slits has multiple rows of return air inlets arranged at intervals along the radial direction of the first diverter, and the return air inlets of adjacent rows are staggered.

[0017] According to the multi-slit air outlet electrode drying nozzle of the present utility model embodiment, the first diverter is provided with two first guide parts, the two first guide parts are inclined and opposite to each other, and the first guide parts are used to guide the airflow in the air outlet cavity to the first air outlet channel and the second air outlet channel.

[0018] According to the embodiment of the present invention, the electrode drying nozzle with multiple slits for air outlet has two second flow dividers. The two second flow dividers are inclined and are arranged on the same side as the second air outlet channel. The second flow dividers are used to guide the airflow in the air outlet cavity to the second air outlet channel.

[0019] The electrode drying nozzle with multiple slits for air outlet according to an embodiment of the present invention further includes a flow-damping plate, which is disposed in the air outlet cavity and has multiple flow-damping holes for airflow to pass through. The flow-damping plate is located between the air inlet end of the air outlet cavity and the first air outlet channel and the second air outlet channel.

[0020] According to an embodiment of the present invention, in the multi-slit air outlet electrode drying nozzle, one or both of the first and second flow dividers are provided with a partition plate between them and the flow buffer plate. The partition plate is used to divide the air outlet cavity into multiple sub-air outlet cavities, and the sub-air outlet cavities are connected to the first air outlet channel and the second air outlet channel.

[0021] According to the embodiment of the present invention, the inner diameter of the sub-air outlet cavity of the multi-slit air outlet gradually decreases along the airflow delivery direction.

[0022] Secondly, the oven according to the embodiment of the present invention uses the above-mentioned multi-slit air outlet electrode drying nozzle.

[0023] The oven according to the embodiments of this utility model has at least the following beneficial effects: The electrode drying nozzle provided in this application achieves multi-slit airflow supply through multiple diverting components. Specifically, the structure of the nozzle shell forms a basic airflow channel, and the air outlet serves as the final airflow output port. The design of the first diverting components arranged radially at intervals forms a first air outlet channel between the inner wall of the nozzle shell and the outer wall of the first diverting component. The second diverting component is inserted between the first diverting components, and its outer wall cooperates with the outer wall of the adjacent first diverting component to form a second air outlet channel. The nested structure increases the density of the air outlet channels within a limited space. Through the synergistic effect of the first and second air outlet channels, multiple slit-type air outlet channels are formed at the air outlet of the nozzle, achieving multi-point precise air delivery in the electrode width direction. The combination design of radially spaced arrangement and nested diverting ensures both airflow uniformity and improves the coverage accuracy of the drying airflow on the electrode surface. By applying the electrode drying nozzle provided in this application, the oven can effectively improve the drying uniformity of the electrode.

[0024] Thirdly, the coating machine according to the embodiments of the present invention includes an electrode drying nozzle with multiple narrow slits and an oven, wherein the electrode drying nozzle is disposed on the oven.

[0025] The coating machine according to the embodiments of this utility model has at least the following beneficial effects: The electrode drying nozzle provided in this application achieves multi-slit airflow supply through multiple diverting components. Specifically, the structure of the nozzle shell forms a basic airflow channel, and the air outlet serves as the final airflow output port. The design of the first diverting components arranged radially at intervals forms a first air outlet channel between the inner wall of the nozzle shell and the outer wall of the first diverting component. The second diverting component is inserted between the first diverting components, and its outer wall cooperates with the outer wall of the adjacent first diverting component to form a second air outlet channel. The nested structure increases the density of the air outlet channels within a limited space. Through the synergistic effect of the first and second air outlet channels, multiple slit-type air outlet channels are formed at the air outlet of the nozzle, achieving multi-point precise air delivery in the electrode width direction. The combination design of radially spaced arrangement and nested diverting ensures both airflow uniformity and improves the coverage accuracy of the drying airflow on the electrode surface. The coating machine, by installing an oven equipped with the electrode drying nozzle provided in this application, can effectively improve the drying uniformity of the electrode and improve the drying quality of the electrode.

[0026] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0028] Figure 1 This is a first-view structural diagram of the multi-slit air outlet electrode drying nozzle according to an embodiment of the present invention;

[0029] Figure 2 for Figure 1 A magnified view of the area marked A;

[0030] Figure 3 This is a second-view structural diagram of the multi-slit air outlet electrode drying nozzle according to an embodiment of the present invention;

[0031] Figure 4 for Figure 3 Enlarged view of part marked B;

[0032] Figure 5 This is a cross-sectional view of the first embodiment of the multi-slit air outlet electrode drying nozzle of this utility model;

[0033] Figure 6 This is a cross-sectional view of the second embodiment of the multi-slit air outlet electrode drying nozzle of this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] Electrode 1;

[0036] Air nozzle housing 100; air outlet cavity 110;

[0037] First diversion component 200; return air inlet 210; return air cavity 220; return air outlet 230; first plate 240; second plate 250; third plate 260; fourth plate 270; fifth plate 280;

[0038] Second diversion component 300;

[0039] First air outlet duct 400;

[0040] Second air outlet duct 500;

[0041] 600 flow retardant plate; 610 flow retardant holes;

[0042] 700 partition plate. Detailed Implementation

[0043] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0044] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0045] In the description of a utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first" and "second" are used, they are merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or the order of the indicated technical features.

[0046] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0047] Reference Figures 1 to 6 This utility model provides a multi-slit air outlet electrode drying nozzle, including a nozzle housing 100 having an air outlet cavity 110 and an air outlet opening communicating with the air outlet cavity 110; a first diverter 200 disposed in the air outlet cavity 110 and close to the air outlet opening, multiple first diverters 200 being arranged at intervals along the radial direction of the air outlet opening, the inner wall of the nozzle housing 100 and the outer wall of the adjacent first diverter 200 forming a first air outlet channel 400; and a second diverter 300 disposed between the first diverters 200, the outer wall of the second diverter 300 and the outer wall of the adjacent first diverter 200 forming a second air outlet channel 500.

[0048] Understandably, the air outlet cavity 110 of the nozzle housing 100 serves as an airflow distribution space, guiding the input airflow into the channel network formed by the first diverter 200 and the second diverter 300. Multiple first diverters 200 are arranged at intervals along the width of the air outlet cavity 110, while the second diverter 300 is positioned between two first diverters 200, thereby increasing the number of air outlet channels per unit area.

[0049] This application provides a first embodiment of an electrode drying nozzle with multiple slits for air outlet. Specifically, as shown... Figure 5As shown, the air outlet cavity 110 is provided with two first diverter components 200 and one second diverter component 300. The second diverter component 300 is located between the two first diverter components 200. The outer wall of one side of the first diverter component 200 forms a first air outlet channel 400 with the inner wall of the air outlet cavity 110, while the outer wall of the second diverter component 300 forms a second air outlet channel 500 with the outer wall of the adjacent first diverter component 200, so that the air outlet opening forms four slit-type air outlet channels.

[0050] Of course, this application does not specifically limit the design quantity of the first diverter 200 and the second diverter 300. Specifically, the outlet width of the multi-slit air outlet electrode drying nozzle can be selected according to the width of the electrode in actual production, and correspondingly, the design quantity of the first diverter 200 and the second diverter 300 is also selected according to the width of the electrode.

[0051] Specifically, refer to the second embodiment of the electrode drying nozzle with multi-slit air outlet provided in this application, specifically, as follows: Figure 6 As shown, the air outlet cavity 110 is provided with a plurality of first diverter components 200 and second diverter components 300. The first diverter components 200 and second diverter components 300 are staggered along the width direction of the air outlet. The outer wall of one side of the first diverter components 200 located at the beginning and end forms a first air outlet channel 400 with the inner wall of the air outlet cavity 110, while the outer wall of the second diverter component 300 forms a second air outlet channel 500 with the outer wall of the adjacent first diverter component 200. The staggered arrangement of the plurality of first diverter components 200 and second diverter components 300 makes the air outlet opening form a plurality of slit-type air outlet channels to accommodate the drying of electrode sheets with a large width.

[0052] The multi-slit air outlet electrode drying nozzle provided in this application utilizes a multi-stage channel synergy to create a dense array of slits at the outlet opening, achieving full coverage of the electrode width. Furthermore, the nested structure design of the first and second flow dividers 200 significantly improves airflow uniformity while maintaining the nozzle's compactness.

[0053] According to some embodiments of this application, such as Figure 5 As shown, both the first air outlet duct 400 and the second air outlet duct 500 are inclined, allowing the airflow from the first air outlet duct 400 and the airflow from the adjacent second air outlet duct 500 to approach and converge. That is, it can be understood that when the airflows from the first air outlet duct 400 and the second air outlet duct 500 approach and converge, a continuous, covering dry airflow band can be formed in the width direction of the electrode, avoiding insufficient drying in the middle area caused by traditional side-mounted air outlets.

[0054] Similarly, as Figure 6As shown, when there are multiple second air outlet channels 500, the second air outlet channels 500 located on both sides of the first diverter 200 in the middle are mirrored, so that the airflow output from the second air outlet channels 500 on both sides of the first diverter 200 in the middle can also converge, forming a multi-layer converged airflow network, which enhances the coverage intensity of each position in the width direction of the electrode 1. By making the output airflow converge, it not only prevents the drying blind zone caused by airflow dispersion, but also avoids local overheating caused by excessive airflow in one direction, thereby achieving a precise and controllable drying effect.

[0055] Turbulence is generated when airflows converge. Since electrode 1 is relatively thin, turbulence can easily cause electrode 1 to shake during the drying process, thus affecting the drying quality. Therefore, this application proposes an improvement scheme.

[0056] like Figure 5 As shown, a return air structure is provided between the first air outlet duct 400 and the second air outlet duct 500. Specifically, the return air structure includes a return air cavity 220 and a return air inlet 210 communicating with the return air cavity 220. The return air cavity 220 is provided with a return air outlet 230. It can be understood that when the airflows output from the first air outlet duct 400 and the second air outlet duct 500 converge, they collide due to the different directions of the airflows output from the first air outlet 400 and the second air outlet 500, resulting in turbulence. The turbulence formed in the airflow convergence area can enter the return air cavity 220 from the return air inlet 210 in a timely manner and be discharged from the return air outlet 230 to the outside of the air nozzle, avoiding disorderly diffusion of turbulence in the air outlet area. Among them, the return air cavity 220 serves as a turbulence collection space. Through its connection with the return air outlet 210, it forms a directional flow, which concentrates and discharges the turbulence that disrupts the stability of the main airflow. This structure maintains the laminar flow characteristics of the main air outlet channel and achieves physical isolation of the interfering airflow through the independent cavity structure, effectively improving the controllability of the drying airflow and enhancing the accuracy of airflow control during the drying process of the electrode 1.

[0057] In particular, in the second embodiment, a return air structure is also provided between the two second air outlet channels 500 to ensure that the airflow output from each air outlet channel maintains a predetermined angle and flow rate, thereby improving the uniformity of heating on the surface of the electrode 1.

[0058] According to some embodiments of this application, such as Figure 5 As shown, the return air structure is set on the first diverter 200. The first diverter 200 is hollow to form a return air cavity 220. The first diverter 200 is provided with a return air port 210 near the air outlet. Multiple return air ports 210 are arranged in a matrix.

[0059] That is, it can be understood that the first diversion component 200 is equipped with a return air structure.

[0060] Specifically, such as Figure 5 As shown, the first diverter 200 is composed of a first plate 240, a second plate 250, a third plate 260, a fourth plate 270, and a fifth plate 280 connected end to end. The first plate 240, the second plate 250, the third plate 260, the fourth plate 270, and the fifth plate 280, together with the inner wall of the air outlet cavity 110, form a return air cavity 220. The return air port 210 is located on the third plate 260. The second plate 250 of the first diverter 200 located on the left side of the air outlet cavity 110 forms a first air outlet channel 400 with the inner wall of the air outlet cavity 110, and its fourth plate 270 forms a second air outlet channel 500 with the outer wall of the second diverter 300. The fourth plate 270 of the first diverter 200 located on the right side of the air outlet cavity 110 forms a first air outlet channel 400 with the inner wall of the air outlet cavity 110, and its third plate 260 forms a second air outlet channel 500 with the outer wall of the second diverter 300.

[0061] In the second embodiment of this application, the second plate 250 of the first diverter 200 located on the far left of the air outlet cavity 110 forms a first air outlet channel 400 with the inner wall of the air outlet cavity 110, and its fourth plate 270 forms a second air outlet channel 500 with the outer wall of the second diverter 300; the fourth plate 270 of the first diverter 200 located on the far right of the air outlet cavity 110 forms a first air outlet channel 400 with the inner wall of the air outlet cavity 110, and its third plate 260 forms a second air outlet channel 500 with the outer wall of the second diverter 300; while the third plate 260 and the fourth plate 270 of the first diverter 200 located in the middle both form a second air outlet channel 500 with the outer wall of the second diverter 300.

[0062] Furthermore, such as Figure 2 As shown, multiple return air inlets 210 are arranged in a matrix. By integrating the return air structure into the body of the first diverter 200, and utilizing its internal hollow structure to directly form the return air cavity 220, the space reuse of the turbulence collection device and the diverter structure is realized, simplifying the internal structure of the nozzle. The matrix arrangement of the return air inlets 210 near the air outlet opening allows the turbulence in the intersection area of ​​each air outlet channel to be captured at multiple points and with high density, avoiding the turbulence residue caused by traditional single-point return air. Through the structural optimization of the first diverter 200 itself, the airflow guiding function of the main air outlet channel is ensured, and the distributed layout of the turbulence discharge channel is realized, effectively improving the ability to eliminate interference from complex airflow.

[0063] According to some embodiments of this application, the first diverter 200 is provided with two first guide sections, which are inclined and opposite to each other. The first guide sections are used to guide the airflow in the air outlet cavity 110 to the first air outlet channel 400 and the second air outlet channel 500.

[0064] Specifically, such as Figure 5 and Figure 6 As shown, the two first guide sections of the first diverter 200 are located on the first plate 240 and the fifth plate 280, respectively. That is, it can be understood that the outer walls of the inclined first plate 240 and the fifth plate 280 form the first guide sections. By setting two inclined and opposite first guide sections on the first diverter 200, a symmetrical guide structure is formed, which can evenly distribute the airflow in the air outlet cavity 110 to the first air outlet channel 400 and the second air outlet channel 500. The inclined angle design of the first guide section can change the airflow direction, so that the airflow enters the air outlet channel along a predetermined path and avoids disorderly airflow diffusion; the layout of the two first guide sections opposite each other can produce a symmetrical guide effect, balance the airflow pressure on both sides of the channel, and ensure that the airflow velocity and flow rate of each air outlet channel tend to be consistent. Each first guide section acts independently on the corresponding air outlet channel, and achieves precise airflow guidance through physical separation, thereby eliminating the airflow imbalance phenomenon that is easy to occur in traditional single guide structures.

[0065] Furthermore, such as Figure 5 As shown, the second diverter 300 has a triangular structure. The second diverter 300 forms two second guide sections on its two opposite inclined surfaces. The first and second guide sections form a double guide section structure, achieving precise control of the airflow in the second outlet channel 500. When the airflow enters the outlet cavity 110, guided by the first guide section, part of the airflow is directed to the inlet end of the second outlet channel 500. The staggered height arrangement between the first diverter 200 and the second diverter 300 creates an airflow buffer zone at the inlet end of the second outlet channel 500, preventing vortex phenomena caused by sudden changes in direction and ensuring that the airflow enters the second outlet channel 500 in a stable state. After being guided by the second guide section, the airflow path changes and enters the second outlet channel 500.

[0066] According to some embodiments of this application, a flow damper 600 is also provided inside the air outlet cavity 110.

[0067] Specifically, as shown in the figure, the flow buffer 600 is located between the air inlet end of the air outlet cavity 110 and the first air outlet channel 400 and the second air outlet channel 500. Furthermore, the flow buffer 600 is provided with a plurality of flow buffer holes 610 through which airflow can pass, and the flow buffer holes 610 are distributed in a matrix.

[0068] Understandably, by setting a flow-damping plate 600 with flow-damping holes 610 between the air inlet end of the air outlet cavity 110 and the air outlet channel, the flow velocity of the original airflow after entering the air outlet cavity 110 can be reduced, achieving deceleration and homogenization of the airflow. The flow-damping plate 600 is located upstream of the airflow, and its flow-damping hole 610 structure can divide the high-speed airflow entering the air outlet cavity 110 into multiple fine airflows, effectively reducing local differences in airflow velocity. The distribution design of the flow-damping holes 610 allows the airflow to complete preliminary pressure equalization before entering the subsequent diversion channel, avoiding pressure imbalance on both sides of the diversion component caused by airflow impact.

[0069] Furthermore, a partition plate 700 is connected to the flow-damping plate 600. As shown in the figure, one end of the partition plate 700 is fixedly connected to the flow-damping plate 600, and the other end is fixedly connected to the first flow divider 200. By utilizing the partition plate 700, the air outlet cavity 110 is further divided into multiple independent sub-cavities, each corresponding to a specific air outlet channel, ensuring the independence of airflow supply to each channel and preventing mutual interference between airflows in different areas. It can be understood that when airflow enters the air outlet cavity 110 from the inlet end, it first passes through the flow-damping holes 610 of the flow-damping plate 600, where the high-speed airflow is dispersed into multiple low-speed airflows, significantly reducing the turbulence intensity. The partition plate 700 further distributes the rectified airflow to different sub-air outlet cavities, each corresponding to a specific first air outlet channel 400 or second air outlet channel 500. Since the sub-air outlet cavities are completely isolated from each other, the airflow parameters of each air outlet channel do not interfere with each other; for example, the flow velocity and pressure can remain independent and stable. When the airflow enters the corresponding air outlet channel through the sub-outlet cavity, the directional delivery path can ensure that the airflow forms a continuous and uniform coverage in the width direction of the electrode 1.

[0070] Optionally, in some other embodiments of this application, a partition plate 700 may be provided between the first diverter 200 and the buffer plate 600, and between the second diverter 300 and the buffer plate 600.

[0071] Furthermore, such as Figure 2 As shown, the inner diameter of the sub-outlet cavity gradually decreases along the airflow direction. That is, it can be understood that the sub-outlet cavity has a conical, stepped, or trapezoidal contraction structure. The gradually contracting structure of the sub-outlet cavity forms a Venturi effect through cross-sectional changes, which improves flow stability while maintaining airflow velocity, and ultimately achieves uniform coverage of the multi-slit outlet airflow on the surface of electrode 1.

[0072] This application also provides an oven (not shown), specifically, the oven uses the electrode drying nozzle provided in this application.

[0073] Furthermore, this application also provides a coating machine (not shown in the figure), specifically, the coating machine uses an oven equipped with the electrode drying nozzle provided in this application.

[0074] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0075] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A multi-slit air outlet electrode drying nozzle, characterized in that, include: The nozzle housing (100) has an air outlet cavity (110) and an air outlet opening communicating with the air outlet cavity (110); The first diverter (200) is disposed in the air outlet cavity (110) and close to the air outlet opening. A plurality of the first diverters (200) are arranged at intervals along the radial direction of the air outlet opening. The inner wall of the nozzle housing (100) and the outer wall of the adjacent first diverter (200) form a first air outlet channel (400). A second diverter (300) is disposed between the first diverters (200), and the outer wall of the second diverter (300) and the outer wall of the adjacent first diverter (200) form a second air outlet channel (500).

2. The electrode drying nozzle with multiple slits for air outlet as described in claim 1, characterized in that, Both the first air outlet channel (400) and the second air outlet channel (500) are inclined, and the airflow output from the first air outlet channel (400) and the airflow output from the adjacent second air outlet channel (500) can approach and converge with each other; Alternatively, both the first air outlet channel (400) and the second air outlet channel (500) are inclined, and the airflow output from the first air outlet channel (400), the airflow output from the second air outlet channel (500), and the airflow output from the second air outlet channel (500) located on both sides of the first diverter (200) can approach and converge with each other.

3. The multi-slit air outlet electrode drying nozzle according to claim 1, characterized in that, It also includes a return air structure, which includes a return air inlet (210) disposed between the first air outlet channel (400) and the second air outlet channel (500). The return air inlet (210) is used to discharge the turbulence formed by the convergence of airflow between the air outlet channels. Alternatively, it may also include a return air structure, which includes a return air inlet (210). The return air inlet (210) is provided between the first air outlet channel (400) and the second air outlet channel (500) and between the second air outlet channels (500) located on both sides of the first diverter (200). The return air inlet (210) is used to discharge the turbulence formed by the convergence of airflow between the air outlet channels.

4. The multi-slit air outlet electrode drying nozzle according to claim 3, characterized in that, The return air structure also includes a return air cavity (220), which is connected to the return air inlet (210). The return air inlet (210) allows turbulent flow formed by the convergence of airflows to pass through and enter the return air cavity (220).

5. The multi-slit air outlet electrode drying nozzle according to claim 4, characterized in that, The return air chamber (220) has a return air outlet (230) for discharging the airflow in the return air chamber (220) to the outside of the nozzle housing (100).

6. The multi-slit air outlet electrode drying nozzle according to claim 4, characterized in that, The return air structure is disposed on the first diverter (200), the first diverter (200) is hollow to form the return air cavity (220), the first diverter (200) is provided with the return air inlet (210) near the air outlet, and the plurality of return air inlets (210) are arranged in a matrix.

7. The multi-slit air outlet electrode drying nozzle according to claim 6, characterized in that, The multiple rows of return air inlets (210) are arranged at intervals along the radial direction of the first diverter (200), and the return air inlets (210) in adjacent rows are staggered.

8. The multi-slit air outlet electrode drying nozzle according to claim 1, characterized in that, The first diverter (200) is provided with two first guide sections. The two first guide sections are inclined and arranged opposite to each other. The first guide sections are used to guide the airflow in the air outlet cavity (110) to the first air outlet channel (400) and the second air outlet channel (500).

9. The multi-slit air outlet electrode drying nozzle according to claim 1, characterized in that, The second diverter (300) is provided with two second guide sections, which are inclined and are arranged on the same side as the second air outlet channel (500). The second guide sections are used to guide the airflow in the air outlet cavity (110) to the second air outlet channel (500).

10. The multi-slit air outlet electrode drying nozzle according to claim 1, characterized in that, It also includes a flow damper (600), which is disposed in the air outlet cavity (110). The flow damper (600) is provided with a plurality of flow damping holes (610) through which airflow can pass. The flow damper (600) is located between the air inlet end of the air outlet cavity (110) and the first air outlet channel (400) and the second air outlet channel (500).

11. The multi-slit air outlet electrode drying nozzle according to claim 10, characterized in that, One or both of the first diverter (200) and the second diverter (300) are provided with a partition plate (700) between them and the buffer plate (600). The partition plate (700) is used to divide the air outlet cavity (110) into multiple sub-air outlet cavities. The sub-air outlet cavities are connected to the first air outlet channel (400) and the second air outlet channel (500).

12. The multi-slit air outlet electrode drying nozzle according to claim 11, characterized in that, The inner diameter of the sub-air outlet gradually decreases along the airflow direction.

13. An oven, characterized in that, The electrode drying nozzle includes the multi-slit air outlet as described in any one of claims 1 to 12.

14. A coating machine, characterized in that, Includes the oven as described in claim 13.

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