Pole piece dust removal device

Abstract

The utility model discloses a pole piece dust removal device, which relates to the technical field of battery manufacturing and comprises a device main body, a brush and a driving assembly. A dust removal cavity is formed in the device body, a dust removal opening is formed in one surface, the brush is rotationally installed in the dust removal cavity, and part of bristles extend out of the dust removal opening. The driving assembly is connected with the brush and used for driving the brush to rotate. A dust extraction opening and an air blowing opening are formed in the two sides of the dust removal opening, and a dust extraction cavity correspondingly communicating with the dust extraction opening and an air blowing cavity communicating with the air blowing opening are formed in the device body. According to the device, dust removal, dust extraction and air blowing are integrally designed, it is ensured that all the parts are stably matched, a stable convection path is formed, and pollutants are rapidly collected. And meanwhile, the brush is combined with the design of air blowing and dust extraction, multi-element dust removal is achieved, and the better cleaning efficiency is achieved.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to electrode dust removal devices. Background Technology

[0002] In battery manufacturing, electrodes are a core component of the battery cell, and their quality directly affects the battery's performance and safety. Electrodes are typically composed of positive and negative active materials, conductive agents, binders, etc., and are assembled into the positive and negative electrodes of the battery cell through stacking or winding. In this process, the cleanliness of the electrodes is one of the key factors ensuring the quality of the battery cell. Since dust and other microparticles in the battery production environment can negatively impact battery performance, effective dust removal before electrode assembly is an essential step.

[0003] Existing methods for removing dust from electrode sheets typically use a suction pipe connected to a dust removal assembly, employing a large chamber for dust removal. While this method effectively removes surface dust and particles, it can easily lead to secondary contamination inside the chamber. Specifically, during dust removal, contaminants originally adsorbed on the chamber walls may be re-entered onto the cleaned electrode surface by the airflow, thus affecting the dust removal efficiency. Furthermore, since electrode sheets usually have tabs attached, these tabs are crucial for connecting the battery electrodes to external circuitry. Using strong airflow for dust removal can damage the adhesion between the tabs and the electrode sheets, or even directly damage the tabs themselves. This not only affects the battery's electrical performance but may also pose safety hazards. Utility Model Content

[0004] In view of this, the purpose of this application is to provide an electrode dust removal device to solve the technical problems of secondary pollution and damage to the electrode tabs in existing dust removal methods.

[0005] To achieve the above technical objectives, this application provides an electrode dust removal device, including a device body, a brush, and a drive assembly;

[0006] The main body of the device is equipped with a dust removal chamber;

[0007] One surface of the main body of the device is provided with a dust removal port that communicates with the dust removal chamber;

[0008] The brush is rotatably mounted in the dust removal chamber, with some of the bristles extending out of the dust removal port;

[0009] The drive component is connected to the brush and is used to drive the brush to rotate;

[0010] The dust removal port has a dust extraction port and an air blowing port arranged for convection on both sides;

[0011] The main body of the device is also provided with a dust extraction chamber connected to the dust extraction port and an air blowing chamber connected to the air blowing port.

[0012] Furthermore, it also includes a protective plate;

[0013] The protective plate is disposed on one surface of the main body of the device and covers the dust removal port;

[0014] The protective plate is provided with several clearance openings for the bristles of the brush to extend out.

[0015] A gap cavity is formed between the protective plate and one surface of the main body of the device to prevent the dust extraction port and the air blowing port from flowing together.

[0016] Furthermore, the main body of the device is a one-piece molded structure;

[0017] The dust removal chamber, the dust extraction chamber, and the air blowing chamber all extend through both ends of the main body of the device.

[0018] The device body has end caps installed at both ends to seal the ends of the dust removal chamber, the dust extraction chamber, and the air blowing chamber.

[0019] At least one of the end caps is fitted with a bearing for connecting the brush.

[0020] Furthermore, the drive assembly includes a rotary motor and a coupling;

[0021] The rotary motor is mounted at one end of the main body of the device, and its output shaft is connected to the brush via the coupling.

[0022] Furthermore, the dust extraction chamber is connected to a dust extraction pipe;

[0023] The dust extraction pipe is installed on one of the end caps.

[0024] Furthermore, the air blowing chamber is connected to an air supply pipe;

[0025] The air supply pipe is installed on one of the end caps.

[0026] Furthermore, the dust extraction port and the air blowing port are strip-shaped openings;

[0027] The width of the dust extraction port is greater than that of the air blowing port;

[0028] The dust extraction port is equipped with several reinforcing ribs.

[0029] Furthermore, the dust removal chamber is provided with a cleaning chamber located above the dust extraction port;

[0030] The cleaning chamber is equipped with a self-cleaning component for cleaning the brush.

[0031] Furthermore, the air inlet forms an angle α with the cleaning plane, where 0° < α < 50°.

[0032] Furthermore, the dust extraction port forms an angle α1 with the cleaning plane, where 130° < α1. 1 <180°.

[0033] Furthermore, the main body of the device has a connecting groove on at least one other surface besides the surface where the dust removal port is located;

[0034] The connecting groove runs through both ends of the main body of the device.

[0035] As can be seen from the above technical solutions, the electrode dust removal device designed in this application has the following beneficial effects:

[0036] 1. The dust removal chamber, dust extraction chamber, and air blowing chamber are integrated into the main body of the device to ensure that the angles of the dust extraction port, air blowing port, and brush are stable, thereby stabilizing the convection path formed by the dust extraction port and air blowing port and quickly collecting pollutants.

[0037] 2. The brush combined with the air blowing and dust extraction design achieves multi-dimensional dust removal, which has better cleaning efficiency compared to a single dust extraction design. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the overall structure of the electrode dust removal device provided in this application;

[0040] Figure 2 This is a cross-sectional view of the electrode dust removal device provided in this application;

[0041] Figure 3 A first perspective view of the main body of the electrode dust removal device provided in this application;

[0042] Figure 4 A second perspective view of the main body of the electrode dust removal device provided in this application;

[0043] Figure 5 This is a third perspective view of the main body of the electrode dust removal device provided in this application;

[0044] Figure 6 This is a front view of the main body of the electrode dust removal device provided in this application;

[0045] In the diagram: 1. Main body of the device; 11. Dust removal chamber; 111. Dust removal port; 112. Cleaning chamber; 12. Dust extraction chamber; 121. Dust extraction port; 122. Reinforcing rib; 13. Air blowing chamber; 131. Air blowing port; 14. Connecting groove; 2. Brush; 3. Drive assembly; 31. Rotary motor; 32. Coupling; 4. Protective plate; 41. Clearance opening; 5. End cover; 6. Air supply pipe; 7. Dust extraction pipe; 8. Self-cleaning assembly. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the embodiments of this application.

[0047] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application 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 the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0049] This application discloses an electrode dust removal device.

[0050] Please see Figure 1 as well as Figure 2 One embodiment of the electrode dust removal device provided in this application includes:

[0051] The device consists of a main body 1, a brush 2, and a drive assembly 3.

[0052] The device body 1 is provided with a dust removal chamber 11; a dust removal port 111 communicating with the dust removal chamber 11 is provided on one surface of the device body 1; taking the plane of the device body 1 facing downwards and directly opposite the direction of electrode movement as an example, then one surface refers to the bottom surface of the device body 1. The specific design can be changed according to actual needs and is not limited.

[0053] The brush 2 is rotatably mounted in the dust removal chamber 11, with some of the bristles extending out of the dust removal port 111; the drive assembly 3 is connected to the brush 2 and is used to drive the brush 2 to rotate.

[0054] The dust removal port 111 has a dust extraction port 121 and an air blowing port 131 on both sides, respectively, which are configured for convection.

[0055] The main body 1 of the device is also provided with a dust extraction chamber 12 connected to the dust extraction port 121 and an air blowing chamber 13 connected to the air blowing port 131; the dust extraction port 121 can be connected to the dust extraction chamber 12 through a flat slit channel, and the air blowing port 131 can also be connected to the air blowing chamber 13 through a slit channel.

[0056] The main body 1, as the core of the dust removal device, plays a crucial role in ensuring the overall stability and durability. The design of the dust removal chamber 11 allows the brush 2 to rotate flexibly, removing contaminants (dust, etc.) from the electrode sheets; while the convection configuration of the dust extraction port 121 and the air blowing port 131 further optimizes the dust removal effect. The dust extraction port 121 draws dust into the dust extraction chamber 12, while the air blowing port 131 separates dust from the electrode surface through airflow. The two work together to ensure that dust is removed quickly and thoroughly.

[0057] The electrode dust removal device designed in this application has the following beneficial effects:

[0058] 1. The dust removal chamber 11, the dust extraction chamber 12 and the air blowing chamber 13 are integrated into the main body 1 of the device to ensure that the angle of the dust extraction port 121, the air blowing port 131 and the brush 2 are stable, so as to promote the stability of the convection path formed by the dust extraction port 121 and the air blowing port 131, thereby quickly collecting pollutants.

[0059] 2. The brush 2 is combined with the air blowing and dust extraction design to achieve multi-dimensional dust removal, which has better cleaning efficiency compared to a single dust extraction design.

[0060] The above is Embodiment 1 of the electrode dust removal device provided in this application. The following is Embodiment 2 of the electrode dust removal device provided in this application. Please refer to the following for details. Figures 1 to 6 .

[0061] Based on the solution of Embodiment 1 above:

[0062] Furthermore, such as Figure 1As shown, it also includes a protective plate 4; the protective plate 4 is disposed on one surface of the main body 1 of the device and covers the dust removal port 111; the protective plate 4 is provided with a plurality of clearance openings 41 for the bristles of the brush 2 to extend out; a gap cavity is formed between the protective plate 4 and one surface of the main body 1 of the device to allow the dust extraction port 121 and the air blowing port 131 to convect and communicate.

[0063] The protective plate 4 is designed to protect the electrode sheets, preventing them from being accidentally drawn into the dust collection chamber 11. The clearance opening 41 allows the bristles of the brush 2 to extend smoothly for dust removal, while the gap effectively prevents the protective plate 4 from interfering with the dust extraction and blowing functions. This design enhances the durability of the device while ensuring efficient and stable dust removal.

[0064] Furthermore, such as Figure 3 As shown, the main body 1 of the device is a one-piece molded structure. This one-piece design not only enhances the structural strength of the main body 1 but also improves its overall aesthetics. This design reduces assembly steps, lowers production costs, and also facilitates later maintenance and upkeep.

[0065] The dust removal chamber 11, the dust extraction chamber 12, and the air blowing chamber 13 all run through both ends of the main body 1 of the device. This layout makes the airflow path smoother, improves the dust removal efficiency, and facilitates the integral molding of the main body 1 of the device.

[0066] like Figure 1 As shown, end caps 5 are installed at both ends of the main body 1 of the device. The design of the end caps 5 not only serves to seal the cavity, but also facilitates the installation of other components.

[0067] At least one end cap 5 is equipped with a bearing that connects to the brush 2, ensuring the flexibility and stability of the brush 2's rotation.

[0068] Furthermore, such as Figure 1 As shown, the drive assembly 3 includes a rotary motor 31 and a coupling 32. The rotary motor 31 is mounted at one end of the main body 1 of the device, and its output shaft is connected to the brush 2 via the coupling 32. The rotary motor 31 serves as a power source, transmitting power to the brush 2 through the coupling 32 to drive its rotation. This design is compact, provides stable power transmission, and effectively ensures efficient dust removal operations.

[0069] Furthermore, such as Figure 1 As shown, the dust extraction chamber 12 is connected to a dust extraction pipe 7; the dust extraction pipe 7 is installed on one of the end caps 5. The design of the dust extraction pipe 7 allows dust to be quickly and easily discharged, improving the convenience of dust removal operations. At the same time, the design of the dust extraction pipe 7 being installed on the end cap 5 is more reasonable, avoiding interference with the internal structure of the main body 1 of the device and ensuring that the dust removal effect is not affected.

[0070] Furthermore, such as Figure 1 As shown, the air blowing chamber 13 is connected to an air supply pipe 6; the air supply pipe 6 is installed on one of the end caps 5. The design of the air supply pipe 6 provides a stable air source for the blowing function, ensuring that the air blowing port 131 can continuously and stably blow out airflow to separate dust from the electrode surface. At the same time, the design of installing the air blowing pipe on the end cap 5 is more reasonable, avoiding interference with the internal structure of the main body 1 of the device and ensuring that the dust removal effect is not affected.

[0071] like Figure 1 As shown, in this application, the air supply pipe 6 and the dust extraction pipe 7 can be distributed on different end caps 5, while the rotary motor 31 of the drive assembly 3 can be installed on one side of the dust extraction pipe 7, located on the same end cap 5.

[0072] Furthermore, such as Figure 3 As shown, the dust extraction port 121 and the air blowing port 131 are strip-shaped openings; the width of the dust extraction port 121 is greater than that of the air blowing port 131; the dust extraction port 121 is provided with several reinforcing ribs 122. The strip-shaped opening design allows for a wider range of dust extraction and air blowing, improving dust removal efficiency. The air blowing port 131 is narrower than the dust extraction port 121, enabling it to output a stronger airflow to better separate dust from the electrode surface. Because of the larger width of the dust extraction port 121, additional reinforcing ribs 122 can be added to enhance its structural strength, preventing deformation or damage due to prolonged use. This design ensures both high efficiency and stability in dust removal, while also extending the service life of the device.

[0073] Furthermore, such as Figure 4 as well as Figure 5 As shown, the dust removal chamber 11 has a cleaning chamber 112 located above the dust extraction port 121; a self-cleaning component 8 for cleaning the brush 2 is installed in the cleaning chamber 112.

[0074] The self-cleaning component 8 is designed to automatically clean the brush 2 during or after dust removal operations, preventing the brush 2 from being affected by excessive dust accumulation and thus improving subsequent dust removal efficiency. This design not only improves dust removal efficiency but also reduces the cost and frequency of manual cleaning, making the device more convenient and efficient to use. The self-cleaning component 8 can be designed as a brush-like structure or a scraper structure, driven by a motor or other means to move within the cleaning chamber 112, contacting the brush 2 and removing dust from it.

[0075] The cleaning chamber 112 is designed above the dust extraction port 121 to prevent dust from being removed in time after self-cleaning and to avoid secondary contamination of the electrode.

[0076] Furthermore, such as Figure 2As shown, the air outlet 131 forms an angle α with the cleaning plane; where 0° < α < 50°.

[0077] The cleaning plane refers to the plane in which the electrode moves, or a plane parallel to one of the surfaces of the main body 1 of the device. The air outlet 131 is designed at an angle to the cleaning plane, so that the air outlet 131 is tilted at a certain angle toward the side where the dust extraction port 121 is located (forming an incident angle). This angle is preferably 0° to 50°, so as to better blow the dust on the electrode toward the dust extraction port 121 and improve the dust removal effect.

[0078] Furthermore, such as Figure 2 As shown, in order to better extract dust, the dust extraction port 121 forms an angle α with the cleaning surface. 1 This causes the dust extraction port 121 to be tilted at a certain angle toward the side where the air blowing port is located (forming an emission angle), which can be 130°~180°, in order to better remove dust.

[0079] α 1 α can be a complementary angle (i.e., α) 1 =180°-α); of course, α 1 The angle between α and α can also be non-complementary, that is, the angle between them is not 180°. Those skilled in the art can make variations in the design according to the actual convection requirements without limitation.

[0080] Furthermore, such as Figures 2 to 6 As shown, the main body 1 of the device has a connecting groove 14 on at least one other surface other than the surface with the dust removal port 111 (taking the bottom surface as an example, the connecting groove 14 is provided on the side and / or top surface); the two ends of the connecting groove 14 extend to the two ends of the main body 1 of the device.

[0081] The design of the connecting groove 14 facilitates the connection of the main body 1 of the device with other equipment or components. Through the connecting groove 14, other auxiliary components, such as sensors and controllers, can be easily installed or removed, thereby enabling intelligent control or monitoring of the electrode dust removal device. This design not only improves the flexibility of the device but also provides more possibilities for its application in complex working environments. At the same time, the connecting groove 14 extends to both ends of the main body 1, ensuring the stability and reliability of the connection and avoiding malfunctions or damage caused by improper connection; it also facilitates processing.

[0082] The electrode dust removal device provided in this application has been described in detail above. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the ideas of the embodiments of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An electrode dust removal device, characterized in that, It includes the main body of the device (1), the brush (2) and the drive assembly (3); The device body (1) is provided with a dust removal chamber (11); The main body (1) of the device is provided with a dust removal port (111) that communicates with the dust removal chamber (11) on one surface. The brush (2) is rotatably mounted in the dust removal chamber (11), and some of the brush bristles extend out of the dust removal port (111). The drive component (3) is connected to the brush (2) and is used to drive the brush (2) to rotate; The dust removal port (111) has a dust extraction port (121) and an air blowing port (131) respectively on both sides. The main body (1) of the device is also provided with a dust extraction chamber (12) that connects to the dust extraction port (121) and an air blowing chamber (13) that connects to the air blowing port (131).

2. The electrode dust removal device according to claim 1, characterized in that, It also includes a protective plate (4); The protective plate (4) is disposed on one surface of the main body (1) of the device and covers the dust removal port (111); The protective plate (4) is provided with several clearance openings (41) for the bristles of the brush (2) to extend out. A gap cavity is formed between the protective plate (4) and one surface of the device body (1) to allow convection between the dust extraction port (121) and the air blowing port (131).

3. The electrode dust removal device according to claim 1, characterized in that, The main body (1) of the device is a one-piece molded structure; The dust removal chamber (11), the dust extraction chamber (12), and the air blowing chamber (13) all penetrate through both ends of the main body (1) of the device; The device body (1) is equipped with end caps (5) at both ends, which are used to seal the ends of the dust removal chamber (11), the dust extraction chamber (12) and the air blowing chamber (13); At least one of the end caps (5) is fitted with a bearing that connects to the brush (2).

4. The electrode dust removal device according to claim 1, characterized in that, The drive assembly (3) includes a rotary motor (31) and a coupling (32); The rotary motor (31) is installed at one end of the main body (1) of the device, and the output shaft is connected to the brush (2) through the coupling (32).

5. The electrode dust removal device according to claim 3, characterized in that, The dust extraction chamber (12) is connected to a dust extraction pipe (7); The dust extraction pipe (7) is installed on one of the end caps (5).

6. The electrode dust removal device according to claim 3, characterized in that, The air blowing chamber (13) is connected to an air supply pipe (6); The air supply pipe (6) is installed on one of the end caps (5).

7. The electrode dust removal device according to claim 1, characterized in that, The dust extraction port (121) and the air blowing port (131) are strip-shaped ports; The width of the dust extraction port (121) is greater than that of the air blowing port (131). The dust extraction port (121) is provided with several reinforcing ribs (122).

8. The electrode dust removal device according to claim 1, characterized in that, The dust removal chamber (11) is provided with a cleaning chamber (112) located above the dust extraction port (121). The cleaning chamber (112) is equipped with a self-cleaning component (8) for cleaning the brush (2).

9. The electrode dust removal device according to claim 1, characterized in that, The air inlet (131) forms an angle α with the clean plane, wherein 0° < α < 50°.

10. The electrode dust removal device according to claim 9, characterized in that, The dust extraction port (121) forms an angle α with the cleaning plane. 1 , where 130° < α 1 <180°.

11. The electrode dust removal device according to claim 1, characterized in that, The main body (1) of the device has a connecting groove (14) on at least one other surface other than the surface on which the dust removal port (111) is provided. The connecting groove (14) runs through both ends of the main body (1) of the device.

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