Dust cleaning device for pole piece

By designing a sleeve brush structure and an electrode dust cleaning device that uses ion wind to remove static electricity, the problem of reduced cleaning effect caused by dust accumulation on the brush was solved, achieving efficient cleaning and dust collection of the electrode and improving battery production quality.

CN223543539UActive Publication Date: 2025-11-14江苏远航锦锂新能源科技有限公司
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Patent Information

Application Number
CN202422787763.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-11-14
Estimated Expiration
2034-11-15

AI Technical Summary

Technical Problem

During the electrode production process, the relative movement between the brush and the electrode generates static electricity, which causes dust to be attracted and affects the cleaning effect. As dust accumulates on the brush, the cleaning effect gradually decreases, affecting the battery production quality.

Method used

A dust cleaning device for electrode sheets was designed, which adopts a sleeve brush structure and combines ion wind static elimination and dust extraction components. The brush moves to clean the dust, and the ion wind static elimination and dust extraction components collect the dust to prevent dust from accumulating on the brush.

Benefits of technology

Effective cleaning of dust from the brush ensures the brush bristles effectively clean the electrode sheets, prevents dust from scattering, and improves the safety and reliability of battery production.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223543539U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of pole piece production, in particular to a dust cleaning device for pole pieces, which comprises a base, a left support and a right support are fixedly arranged on the base, a sleeve is rotatably arranged between the left support and the right support, a plurality of bristles are arranged on the outer wall of the sleeve, and an air duct is fixedly arranged between the left support and the right support. The sleeve is arranged on the air cylinder in a sleeving mode, an air guide cover is arranged between the inner wall of the sleeve and the outer wall of the air cylinder, one side of the air guide cover is attached to the inner wall of the sleeve, a plurality of air outlet holes are formed in the sleeve, the other side of the air guide cover is fixedly connected with the air cylinder, an air cavity is formed in the air cylinder, and the air cavity is used for containing ion air. The air cavity is communicated with the air guide cover, and a dust suction assembly is arranged on the base and used for sucking dust. Dust particles adhered to the surface of the brush are cleaned, and the cleaning effect of the pole piece is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of electrode production technology, and in particular to a dust cleaning device for electrodes. Background Technology

[0002] During the production of battery electrodes, a die-cutting machine is used to slice long electrodes and die-cut the tabs. During the die-cutting process, impurities such as dust and metal particles are generated. Some of these impurities will adhere to the electrodes, causing dangers such as short circuits, fires, or even explosions. Therefore, in order to ensure the safety and reliability of the battery, it is necessary to remove dust from the electrode surface.

[0003] Currently, a brush is typically used to move relative to the electrode to remove dust and impurities from the electrode surface. However, static electricity is generated during this relative movement, causing dust to be attracted to the brush. As more dust accumulates on the brush, its cleaning effect on subsequent electrodes gradually decreases, thus affecting the battery production quality. Utility Model Content

[0004] In order to remove dust particles adhering to the brush surface and ensure the cleaning effect of the electrode, this application provides a dust cleaning device for electrode.

[0005] The dust cleaning device for electrode sheets provided in this application adopts the following technical solution:

[0006] A dust cleaning device for electrode sheets includes a base, a left support and a right support fixedly mounted on the base, a sleeve rotatably mounted between the left and right supports, a plurality of bristles on the outer wall of the sleeve, a wind duct fixedly mounted between the left and right supports, the sleeve being fitted onto the wind duct, a wind guide hood being mounted between the inner wall of the sleeve and the outer wall of the wind duct, one side of the wind guide hood being in contact with the inner wall of the sleeve, a plurality of air outlets being formed on the sleeve, the other side of the wind guide hood being fixedly connected to the wind duct, a wind chamber being provided inside the wind duct for containing ionized air, the wind chamber being in communication with the wind guide hood, and a dust extraction assembly being mounted on the base for dust extraction.

[0007] By adopting the above technical solution, rotating the sleeve drives the brush bristles to move, thereby brushing the dust on the electrode sheet and causing the dust to approach the dust extraction component and be sucked away by the dust extraction component. At the same time, the ion air in the air chamber is blown towards the sleeve by the air guide hood. After the ion air is blown out of the air outlet, it removes static electricity from the brush bristles near the air outlet, causing the dust adsorbed on the brush bristles to fall off and be sucked away by the dust extraction component. This cleans the dust particles adhering to the brush bristles and ensures the cleaning effect of the brush bristles on the subsequent electrode sheets.

[0008] Preferably, a dustproof screen is installed inside the air outlet.

[0009] By adopting the above technical solution, the dustproof net makes it difficult for dust particles on the bristles to enter the sleeve through the air outlet.

[0010] Preferably, the dust extraction assembly includes a dust collection box, a dust extraction fan, a dust extraction pipe, and a dust collection hood. The dust extraction fan is fixedly installed inside the dust collection box, and the dust collection box is fixedly installed on the base. Several exhaust holes are opened at one end of the dust collection box, and the other end of the dust collection box is connected to one end of the dust extraction pipe. The other end of the dust extraction pipe is connected to the dust collection hood, and the dust collection hood and the air guide hood are arranged opposite to each other.

[0011] By adopting the above technical solution, the dust extraction fan generates negative pressure when it starts, which causes dust particles to be sucked into the dust extraction pipe from the dust collection hood. The dust particles in the dust extraction pipe then enter the dust collection box along the dust extraction pipe, thus achieving the effect of collecting dust particles.

[0012] Preferably, a dust-blocking net is fixedly installed inside the dust collection box, and the dust-blocking net is located on the side of the dust extraction fan away from the exhaust port.

[0013] By adopting the above technical solution, when dust particles enter the dust collection box along the dust extraction pipe, the dust particles are blocked by the dust baffle and are not easily discharged from the dust collection box through the exhaust hole, thereby reducing the situation of dust particles scattering.

[0014] Preferably, one end of the sleeve is rotatably connected to the left support, and the other end of the sleeve is fixedly provided with an end plate, which closes the end of the sleeve. The end plate is sleeved on the air duct and is rotatably connected to the air duct.

[0015] By adopting the above technical solution, one end of the sleeve is connected to the left support through a bearing, and the other end of the sleeve is connected to the air duct through an end plate, thereby enabling the sleeve to be rotatably installed between the left support and the right support.

[0016] Preferably, a drive motor is fixedly mounted on the base, a drive gear is fixedly mounted on the output shaft of the drive motor, a transmission gear is fixedly mounted on the end plate, the transmission gear is sleeved on the air duct, and the transmission gear meshes with the drive gear.

[0017] By adopting the above technical solution, the drive motor starts and drives the drive gear to rotate, the drive gear rotates and drives the transmission gear to rotate, and the transmission gear drives the end plate and sleeve to rotate synchronously.

[0018] Preferably, the air duct is provided with an air inlet pipe, one end of which is connected to the air cavity, and the other end of which is connected to an air inlet box. The air inlet box is fixedly mounted on the base, and an air inlet is provided on the air inlet box. An ion emitter and an air intake fan are provided inside the air inlet box.

[0019] By adopting the above technical solution, after the ion emitter is started, gas containing ions is generated in the air inlet box. After the air blower is started, the gas containing ions in the air inlet box forms ion wind and enters the air cavity through the air inlet pipe.

[0020] Preferably, a filter pipe is connected to the air inlet, a filter screen is installed inside the filter pipe, a one-way valve is installed on the filter pipe, and the filter screen is located between the one-way valve and the air inlet box.

[0021] By adopting the above technical solution, when outside gas enters the air inlet box, the gas is filtered through the filter screen, making it difficult for impurity particles in the outside gas to enter the air inlet box. The one-way valve ensures that the gas can only enter the air inlet box from the outside through the filter pipe, while the gas in the air inlet box is not easily dispersed to the outside through the filter pipe.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By setting up a base, left support, right support, sleeve, brush bristles, air duct, air guide cover, air outlet, air chamber and dust extraction assembly, the dust particles adhering to the brush bristles are cleaned to ensure the cleaning effect of the brush bristles on the subsequent electrode sheets.

[0024] 2. By setting up a dust collection box, dust extraction fan, dust extraction pipe, dust collection hood, and exhaust vent, the effect of collecting dust particles can be achieved;

[0025] 3. By setting up a drive motor, drive gear, and transmission gear, the sleeve drives the bristles to rotate. Attached Figure Description

[0026] Figure 1 This is a cross-sectional view of a dust cleaning device for electrodes according to an embodiment of this application.

[0027] Figure 2 yes Figure 1 Enlarged view of section A.

[0028] Figure 3 This is a cross-sectional view illustrating the connection between the sleeve and the base in the embodiments of this application.

[0029] Figure 4 This is a cross-sectional view showing the connection relationship between the air inlet pipe and the filter pipe in the embodiments of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Base; 11. Left support; 12. Right support; 2. Sleeve; 21. Air outlet; 22. Dustproof net; 3. Brush bristles; 4. Air duct; 41. Air chamber; 42. Air guide hood; 5. Dust extraction assembly; 51. Dust collection box; 511. Exhaust vent; 512. Dust baffle; 52. Dust extraction fan; 53. Dust extraction pipe; 54. Dust collection hood; 6. Drive motor; 61. Drive gear; 62. Transmission gear; 63. End plate; 7. Air inlet box; 71. Air inlet pipe; 72. Air inlet; 73. Filter pipe; 731. Filter screen; 732. One-way valve; 74. Air inlet fan; 8. Ion emitter. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0032] This application discloses a dust cleaning device for electrode sheets. (Refer to...) Figures 1 to 3 The system includes a base 1, on which a left support 11 and a right support 12 are mounted. A sleeve 2 is rotatably mounted between the left support 11 and the right support 12. The sleeve 2 has open ends, and several bristles 3 are mounted on its outer wall. A wind duct 4 is mounted between the left support 11 and the right support 12, and its ends are closed. The sleeve 2 is fitted onto the wind duct 4, and the sleeve 2 and the wind duct 4 are coaxially arranged. A wind guide hood 42 is installed between the inner wall of the sleeve 2 and the outer wall of the wind duct 4. One side of the wind guide hood 42 is in contact with the inner wall of the sleeve 2, and the other side of the wind guide hood 42 is welded to the wind duct 4. The wind duct 4 has a wind chamber 41 inside, which is used to contain ion wind. The wind chamber 41 is interconnected with the wind guide hood 42. Several air outlets 21 are opened on the sleeve 2. Dustproof nets 22 are installed inside the air outlets 21 to prevent dust particles on the bristles 3 from entering the sleeve 2 through the air outlets 21. A dust extraction assembly 5 is installed on the base 1. The dust extraction assembly 5 is used for dust extraction. Rotating the sleeve 2 moves the brush bristles 3, causing them to brush away dust on the electrode sheets, bringing the dust closer to the dust extraction assembly 5 for extraction. Simultaneously, ionized air in the air chamber 41 is blown towards the sleeve 2 by the air guide shroud 42. When the air outlet 21 on the sleeve 2 moves to the output port of the air guide shroud 42, ionized air is blown out from the air outlet 21, destaticating the brush bristles 3 near the air outlet 21, causing the dust adsorbed on the brush bristles 3 to fall off and be extracted by the dust extraction assembly 5. This cleans the dust particles adhering to the brush bristles 3, ensuring the brush bristles 3 effectively clean the subsequent electrode sheets.

[0033] In order to collect dust particles, refer to Figure 1The dust extraction assembly 5 includes a dust collection box 51, a dust extraction fan 52, a dust extraction pipe 53, and a dust collection hood 54. The dust extraction fan 52 is installed inside the dust collection box 51, which is mounted on the base 1. Several exhaust holes 511 are opened at one end of the dust collection box 51. The other end of the dust collection box 51 is connected to one end of the dust extraction pipe 53, and the other end of the dust extraction pipe 53 is connected to the dust collection hood 54. The dust collection hood 54 is positioned opposite to the air guide hood 42. A dust filter 512 is installed inside the dust collection box 51, located on the side of the dust extraction fan 52 away from the exhaust holes 511. When the dust extraction fan 52 starts, it generates negative pressure, causing dust particles to be drawn into the dust extraction pipe 53 from the dust collection hood 54. After the dust particles enter the dust collection box 51 along the dust extraction pipe 53, they are blocked by the dust filter 512 and are not easily discharged from the dust collection box 51 through the exhaust holes 511. This reduces the dispersion of dust particles and achieves the effect of dust particle collection.

[0034] In order for the sleeve 2 to drive the bristles 3 to rotate, refer to Figure 3 One end of the sleeve 2 is rotatably connected to the left support 11 via a bearing, and the other end of the sleeve 2 is fitted with an end plate 63. The left support 11 and the end plate 63 enclose the end of the sleeve 2. The end plate 63 is fitted onto the air duct 4, and the end plate 63 and the air duct 4 are rotatably connected via a bearing. A drive motor 6 is mounted on the base 1, and a drive gear 61 is mounted on the output shaft of the drive motor 6. A transmission gear 62 is mounted on the end plate 63, and the transmission gear 62 is fitted onto the air duct 4. The transmission gear 62 is coaxial with the air duct 4, and the transmission gear 62 meshes with the drive gear 61.

[0035] In order to introduce ion wind into the air cavity 41, refer to Figure 3 and Figure 4 An air inlet box 7 is installed on the base 1, and an ion emitter 8 and an air intake fan 74 are installed inside the air inlet box 7. One end of the air inlet box 7 is connected to an air inlet pipe 71, which is connected to the air chamber 41. The other end of the air inlet box 7 has an air inlet 72, and a filter pipe 73 is connected inside the air inlet 72. A filter screen 731 is installed inside the filter pipe 73 to prevent impurities in the outside air from easily entering the air inlet box 7. A one-way valve 732 is installed on the filter pipe 73, and the filter screen 731 is located between the one-way valve 732 and the air inlet box 7, so that gas can only enter the air inlet box 7 from the outside through the filter pipe 73, while the gas inside the air inlet box 7 is not easily dissipated to the outside through the filter pipe 73. After the ion emitter 8 is activated, gas containing ions is generated in the air inlet box 7. After the air intake fan 74 is activated, the gas containing ions in the air inlet box 7 forms an ionized wind that enters the air chamber 41 through the air inlet pipe 71.

[0036] The implementation principle of the electrode dust cleaning device in this application embodiment is as follows: After the ion emitter 8 is activated, gas containing ions is generated in the air inlet box 7. After the air blower 74 is activated, the gas containing ions in the air inlet box 7 forms ionized air and enters the air chamber 41 through the air inlet pipe 71. After the drive motor 6 is activated, the sleeve 2 rotates, driving the brush bristles 3 to move, thereby brushing the dust on the electrode and causing the dust to approach the dust collection hood 54 and be sucked into the dust collection box 51. At the same time, the ionized air in the air chamber 41 is blown towards the sleeve 2 by the air guide hood 42. When the air outlet 21 on the sleeve 2 moves to the output port of the air guide hood 42, the ionized air is blown out from the air outlet 21, which removes static electricity from the brush bristles 3 near the air outlet 21, causing the dust adsorbed on the brush bristles 3 to fall off and be sucked into the dust collection box 51 by the dust collection hood 54. In this way, the dust particles adhering to the brush bristles 3 are cleaned, ensuring the cleaning effect of the brush bristles 3 on the subsequent electrode.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dust cleaning device for electrode sheets, comprising a base (1), a left support (11) and a right support (12) fixedly disposed on the base (1), a sleeve (2) rotatably disposed between the left support (11) and the right support (12), and a plurality of bristles (3) disposed on the outer wall of the sleeve (2), characterized in that: A duct (4) is fixedly installed between the left support (11) and the right support (12). The sleeve (2) is fitted onto the duct (4). A guide hood (42) is installed between the inner wall of the sleeve (2) and the outer wall of the duct (4). One side of the guide hood (42) is in close contact with the inner wall of the sleeve (2). Several air outlets (21) are opened on the sleeve (2). The other side of the guide hood (42) is fixedly connected to the duct (4). A wind chamber (41) is provided inside the duct (4). The wind chamber (41) is used to contain ion wind. The wind chamber (41) is connected to the guide hood (42). A dust extraction assembly (5) is provided on the base (1). The dust extraction assembly (5) is used for dust extraction.

2. The dust cleaning device for electrode sheets according to claim 1, characterized in that: A dustproof net (22) is installed inside the air outlet (21).

3. The dust cleaning device for electrode sheets according to claim 1, characterized in that: The dust extraction assembly (5) includes a dust collection box (51), a dust extraction fan (52), a dust extraction pipe (53), and a dust collection hood (54). The dust extraction fan (52) is fixedly installed inside the dust collection box (51). The dust collection box (51) is fixedly installed on the base (1). A plurality of exhaust holes (511) are opened at one end of the dust collection box (51). The other end of the dust collection box (51) is connected to one end of the dust extraction pipe (53). The other end of the dust extraction pipe (53) is connected to the dust collection hood (54). The dust collection hood (54) is arranged opposite to the air guide hood (42).

4. The dust cleaning device for electrode sheets according to claim 3, characterized in that: A dust-blocking net (512) is fixedly installed inside the dust collection box (51), and the dust-blocking net (512) is located on the side of the dust extraction fan (52) away from the exhaust hole (511).

5. The dust cleaning device for electrode sheets according to claim 1, characterized in that: One end of the sleeve (2) is rotatably connected to the left support (11), and the other end of the sleeve (2) is fixedly provided with an end plate (63). The end plate (63) closes the end of the sleeve (2), and the end plate (63) is sleeved on the air duct (4). The end plate (63) is rotatably connected to the air duct (4).

6. The dust cleaning device for electrode sheets according to claim 5, characterized in that: A drive motor (6) is fixedly installed on the base (1), a drive gear (61) is fixedly installed on the output shaft of the drive motor (6), a transmission gear (62) is fixedly installed on the end plate (63), the transmission gear (62) is sleeved on the air duct (4), and the transmission gear (62) meshes with the drive gear (61).

7. The dust cleaning device for electrode sheets according to claim 1, characterized in that: An air inlet pipe (71) is provided on the air duct (4). One end of the air inlet pipe (71) is connected to the air cavity (41), and the other end of the air inlet pipe (71) is connected to an air inlet box (7). The air inlet box (7) is fixedly installed on the base (1). An air inlet (72) is opened on the air inlet box (7). An ion emitter (8) and an air blower (74) are provided inside the air inlet box (7).

8. The dust cleaning device for electrode sheets according to claim 7, characterized in that: A filter pipe (73) is connected to the air inlet (72), a filter screen (731) is installed inside the filter pipe (73), a one-way valve (732) is installed on the filter pipe (73), and the filter screen (731) is located between the one-way valve (732) and the air inlet box (7).