A dust removal device and pole piece processing equipment

Abstract

This application discloses a dust removal device and electrode processing equipment, comprising: a device body, a dust removal component, and a fan assembly; the dust removal component is connected to the device body and encloses a dust removal space for the electrode to pass through; the dust removal component has a mutually separated air outlet chamber and a dust collection chamber, and the side of the dust removal component facing the dust removal space has an air outlet and a dust suction port; the fan assembly is connected to the air outlet chamber and the dust collection chamber respectively, and is used to provide airflow to the air outlet chamber and / or the dust collection chamber. This application uses the fan assembly to introduce airflow into the air outlet chamber and / or the dust collection chamber, allowing the airflow to flow from the air outlet into the dust removal space to remove impurities from the electrode surface; simultaneously, the dust suction port guides the airflow in the dust removal space to the dust collection chamber, so as to quickly suck impurities leaving the electrode surface into the dust collection chamber. This ensures that impurities on the electrode surface are fully removed and also prevents impurities blown off the electrode surface by the airflow from accumulating in the dust removal space, thereby improving the dust removal effect of the dust removal device.

Description

Technical Field

[0001] This application belongs to the field of battery technology, specifically relating to a dust removal device and electrode processing equipment. Background Technology

[0002] With the rapid development of electronic products, people have increasingly higher requirements for the battery life of these products, and battery performance plays a crucial role in this endurance. Laser etching lines of a certain depth and width on the surface of battery electrodes can increase the battery's energy density, thereby improving its battery life. However, the laser etching process generates a large amount of dust, which can easily contaminate the electrode surface and adversely affect battery performance.

[0003] In related technologies, dust removal devices are installed in laser etching equipment to remove dust from the surface of battery electrodes; however, the dust removal effect of these devices is poor, and incomplete removal of impurities from the electrode surface can affect subsequent processes. Utility Model Content

[0004] This application aims to provide a dust removal device and electrode processing equipment, which can solve the problems of poor dust removal effect of dust removal devices in related technologies, and the easy escape of impurities detached from the electrode surface without being removed in time.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application propose a dust removal device, comprising: a device body, a dust removal component, and a fan assembly;

[0007] The dust removal component is connected to the main body of the device and encloses a dust removal space for the electrode sheet to pass through. The dust removal component has an air outlet chamber and a dust collection chamber that are separated from each other. The dust removal component has an air outlet and a dust suction port on the side facing the dust removal space. The air outlet connects the dust removal space and the air outlet chamber, and the dust suction port connects the dust removal space and the dust collection chamber. The fan assembly is connected to the air outlet chamber and the dust collection chamber respectively, and is used to provide airflow to the air outlet chamber and / or the dust collection chamber to remove impurities from the surface of the electrode sheet through the airflow.

[0008] Optionally, the main body of the device includes a dust cover and a support frame;

[0009] The bracket and the dust removal component are connected, the dust cover is connected to the bracket, and the dust cover, the bracket, and the dust removal component enclose the dust removal space.

[0010] The dust cover is provided with an outlet and an inlet that communicate with the dust removal space, for the electrode to enter and exit the dust removal space.

[0011] Optionally, the dust removal device further includes a roller, which is disposed within the dust removal space and is rotatably connected to the bracket. The roller is used to wind the electrode plate, and the air outlet and the dust suction port face the roller.

[0012] Optionally, the surface of the dust removal component facing the roller is curved, the curved surface protrudes in a direction away from the roller, and the air outlet and the dust suction port are located in the curved surface.

[0013] Optionally, the roller has a working surface that contacts the electrode, and the axial direction of the roller is a first direction; wherein the length of the air outlet along the first direction is greater than or equal to the length of the working surface along the first direction.

[0014] And / or, the length of the suction port along the first direction is greater than or equal to the length of the working surface along the first direction.

[0015] Optionally, the fan assembly includes a first fan, which is connected to the air outlet chamber and is used to provide positive pressure airflow into the air outlet chamber.

[0016] And / or, the fan assembly includes a second fan, which is in communication with the dust collection chamber and is used to provide negative pressure airflow into the dust collection chamber.

[0017] Optionally, the first fan includes a first fan body and a first duct, the first duct is connected to the air outlet chamber, the first fan body is connected to the first duct, the first fan body provides positive pressure airflow to the air outlet chamber through the first duct, and the flow cross-sectional area of ​​the air outlet is smaller than the flow cross-sectional area of ​​the first duct.

[0018] And / or, the second fan includes a second fan body and a second duct, the second duct is connected to the dust collection chamber, the second fan body is connected to the second duct, the second fan body provides negative pressure airflow to the dust collection chamber via the second duct, and the flow cross-sectional area of ​​the dust suction port is smaller than the flow cross-sectional area of ​​the second duct.

[0019] Optionally, the dust removal component is provided with at least two dust suction ports, which are respectively located on both sides of the air outlet.

[0020] Optionally, there are two suction ports, which are located on both sides of the air outlet, and the distance between the two suction ports and the air outlet is equal.

[0021] Secondly, embodiments of this application provide an electrode processing apparatus, including the dust removal device described in any of the above claims.

[0022] In the embodiments of this application, an air outlet and a dust suction port are simultaneously provided on the side of the dust removal component facing the dust removal space. The dust removal component contains a mutually separated air outlet chamber and a dust collection chamber, with the air outlet communicating with both the air outlet chamber and the dust removal space, and the dust suction port communicating with both the dust collection chamber and the dust removal space. This application utilizes a fan assembly to introduce airflow into the air outlet chamber and / or the dust collection chamber, allowing the airflow to flow from the air outlet into the dust removal space, thereby removing impurities from the electrode surface within the dust removal space. Simultaneously, the dust suction port guides the airflow within the dust removal space to the dust collection chamber, rapidly drawing impurities leaving the electrode surface into the dust collection chamber, preventing impurities blown off the electrode surface by the airflow from accumulating within the dust removal space. This ensures that impurities on the electrode surface are fully removed and that impurities detached from the electrode are promptly carried away from the dust removal space, preventing secondary contamination of the electrode and thus improving the dust removal efficiency of the dust removal device.

[0023] Additional aspects and advantages of this application 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 this application. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a schematic diagram of the structure of a dust removal device according to an embodiment of this application;

[0026] Figure 2 This is a partial structural schematic diagram of a dust removal device according to an embodiment of this application;

[0027] Figure 3 This is a cross-sectional view of a dust removal component according to an embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the structure of a dust removal component according to an embodiment of this application;

[0029] Figure 5 This is a structural layout diagram of a laser etching apparatus according to an embodiment of this application.

[0030] Figure label:

[0031] 100: Main body of the device; 110: Dust cover; 120: Roller; 130: Support; 200: Dust removal component; 210: Air outlet; 211: Air outlet; 220: Dust collection chamber; 221: Dust suction port; 230: Curved surface; 310: First pipe; 320: Second pipe; 400: Electrode; X: First direction. Detailed Implementation

[0032] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated 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 application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0033] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0034] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing 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, and therefore should not be construed as a limitation of this application.

[0035] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] The dust removal device and electrode processing equipment provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0037] like Figure 1 and Figure 3 As shown, a dust removal device according to some embodiments of this application includes: a device body 100, a dust removal component 200, and a fan assembly;

[0038] The dust removal component 200 is connected to the main body 100 of the device and encloses a dust removal space for the electrode 400 to pass through. The dust removal component 200 is provided with an air outlet 210 and a dust collection chamber 220 that are separated from each other. The dust removal component 200 is provided with an air outlet 211 and a dust suction port 221 on the side facing the dust removal space. The air outlet 211 connects the dust removal space and the air outlet 210, and the dust suction port 221 connects the dust removal space and the dust collection chamber 220. The fan assembly is connected to the air outlet 210 and the dust collection chamber 220 respectively, and is used to provide airflow to the air outlet 210 and / or the dust collection chamber 220 to remove impurities on the surface of the electrode 400 by airflow.

[0039] In this embodiment, an air outlet 211 and a suction port 221 are simultaneously provided on the side of the dust collector 200 facing the dust collection space. An air outlet chamber 210 and a dust collection chamber 220 are provided separately within the dust collector 200. The air outlet 211 communicates with the air outlet chamber 210 and the dust collection space, and the suction port 221 communicates with the dust collection chamber 220 and the dust collection space. This application utilizes a fan assembly to introduce airflow into the air outlet chamber 210 and / or the dust collection chamber 220, allowing the airflow to flow from the air outlet 211 into the dust collection space, thereby removing impurities from the surface of the electrode 400 within the dust collection space. Simultaneously, the suction port 221 guides the airflow within the dust collection space to the dust collection chamber 220, rapidly drawing impurities leaving the electrode surface into the dust collection chamber 220, preventing impurities blown away from the electrode 400 surface by the airflow from accumulating within the dust collection space. This ensures that impurities on the surface of electrode 400 are fully removed, and that impurities are promptly removed from the dust removal space after detaching from electrode 400, thus preventing secondary contamination of electrode 400 and improving the dust removal efficiency of the dust removal device.

[0040] In the battery manufacturing process, in order to improve the energy density of the battery, it is necessary to use electrode 400 processing equipment to etch lines of a certain depth and width on the surface of the battery electrode 400. However, since the coating on the surface of the electrode 400 contains adhesive components, a large amount of sticky dust is easily generated during the etching process as the temperature rises. This dust adheres to the surface of the electrode 400 or remains in the etching lines, which can have an adverse effect on the battery's self-discharge rate or energy storage efficiency.

[0041] Therefore, embodiments of this application provide a dust removal device, which includes a device body 100, a dust removal component 200, and a fan assembly; the dust removal component 200 is connected to the device body 100 and encloses a dust removal space, through which the electrode 400 passes; the dust removal component 200 has an air outlet 211 and a dust collection port 221 on the side facing the dust removal space, and the dust removal component 200 has a mutually separated air outlet chamber 210 and a dust collection chamber 220, the air outlet 211 is connected to the dust removal space and the air outlet chamber 210, and the dust collection port 221 is connected to... The dust removal space and the dust collection chamber 220 are connected; the fan assembly is connected to the air outlet chamber 210 to introduce airflow into the air outlet chamber 210. The airflow flows into the dust removal space through the air outlet 211, thereby blowing away the impurities, i.e. dust, remaining on the surface of the electrode 400 or within the etching lines in the dust removal space. At the same time, the fan assembly is connected to the dust collection chamber 220 to introduce gas into the dust collection chamber 220, thereby quickly sucking the dust that has detached from the electrode 400 into the dust collection chamber 220, and finally removing the dust from the surface of the electrode 400.

[0042] Optionally, such as Figure 1 As shown, the main body 100 of the device includes a dust cover 110 and a support 130; the support 130 is connected to the dust removal component 200, and the dust cover 110 is connected to the support 130. The dust cover 110, the support 130 and the dust removal component 200 enclose a dust removal space; the dust cover 110 is provided with a discharge port and a feed port that communicate with the dust removal space, for the electrode 400 to enter and exit the dust removal space.

[0043] In the embodiments of this application, by setting up a dust cover 110 and a bracket 130, and connecting the bracket 130 to the dust removal component 200, the dust cover 110 and the bracket 130 are connected to form a dust removal space. This prevents dust from overflowing to the outside of the device body 100 and polluting the external environment when the electrode 400 is being dusted in the dust removal space, and also prevents it from being inconvenient to clean. In addition, a discharge port and a feed port are provided on the dust cover 110 so that the electrode 400 can flow in from the feed port, then pass through the dust removal component 200 to remove dust, and then flow out from the discharge port. This not only simplifies the structure but also facilitates operation.

[0044] Furthermore, the dust cover 110 is detachably connected to the bracket 130 and the dust removal component 200, respectively, and the dust removal component 200 is detachably connected to the bracket 130. This facilitates installation, disassembly, maintenance, and replacement. It is understood that the detachable connection method can be bolt and nut connection, snap-fit ​​connection, etc., and the specific detachable connection method can be flexibly set according to actual process requirements. This embodiment does not limit it.

[0045] Optionally, such as Figure 1As shown, the dust removal device also includes a roller 120, which is located in the dust removal space and is rotatably connected to the bracket 130. The roller 120 is used to wind the electrode 400, and the air outlet 211 and the dust suction port 221 face the roller 120.

[0046] In the embodiments of this application, a roller 120 is arranged in the dust removal space and rotatably connected to the bracket 130. The electrode 400 is wrapped around the circumference of the roller 120, and the air outlet 211 and the dust suction port 221 face the roller 120. In this way, on the one hand, the electrode 400 can move continuously under the drive of the roller 120, thereby cleaning the dust on the surface of the electrode 400 or in the etching lines under the action of the dust removal component 200; on the other hand, the electrode 400 moves in contact with the surface of the roller 120, which can prevent the electrode 400 from wrinkling and keep the electrode 400 flat during the dust removal process, thereby improving the dust removal effect of the dust removal device.

[0047] In some embodiments, multiple rollers 120 can be configured. By winding the electrode 400 around multiple rollers 120, the flatness and stability of the electrode 400 during movement can be improved, thereby enhancing the dust removal effect of the dust removal component 200 on the electrode 400. It is understood that the arrangement of the multiple rollers 120 in the dust removal space can be flexibly set according to actual process conditions, and this embodiment does not limit it.

[0048] In some embodiments, the dust removal device further includes a driving member connected to the roller 120 for driving the roller 120 to rotate. The electrode 400 is arranged around the circumferential surface of the roller 120, and the air outlet 211 and the dust suction port 221 face the roller 120. The electrode 400 flows into the feed port on the dust cover 110 under the drive of the roller 120. When the electrode 400 moves to the position corresponding to the air outlet 211, the airflow formed at the air outlet 211 can remove the dust on the surface of the electrode 400, and the airflow at the dust suction port 221 will suck the dust off the surface of the electrode 400 into the dust collection chamber 220. After the area on the electrode 400 corresponding to the air outlet 211 is cleaned, the electrode 400 flows out from the discharge port under the drive of the roller 120 to leave the dust removal space.

[0049] Understandably, the moving speed of the electrode 400 is determined by the rotation speed of the roller 120. The rotation speed of the roller 120 should not be too fast. When the rotation speed of the roller 120 is too fast, the dust remaining on the surface of the electrode 400 or in the etching lines cannot be cleaned, thus affecting the performance of the battery. The rotation speed of the roller 120 should also not be too slow. When the rotation speed of the roller 120 is too slow, the production efficiency of the production line will be low.

[0050] It should also be noted that the driving component can be a servo electrode or a cylinder, etc. The specific type of driving component can be flexibly selected according to the actual production situation, and this embodiment does not limit it.

[0051] Optionally, such as Figure 2 and Figure 4 As shown, the surface of the dust removal component 200 facing the roller 120 is a curved surface 230, which protrudes in a direction away from the roller 120. The air outlet 211 and the dust suction port 221 are located in the curved surface 230.

[0052] In this embodiment, by setting the side of the dust collector 200 facing the roller 120 as a curved surface 230, with the curved surface 230 protruding away from the roller 120, and the air outlet 211 and the dust suction port 221 disposed in the curved surface 230, the side of the dust collector 200 facing the roller 120 can better adapt to the electrode 400 wrapped around the circumference of the roller 120, reducing air leakage during the dust removal process, so that the air outlet 211 and the dust suction port 221 can more effectively capture and adsorb the dust on the surface of the electrode 400, thereby improving the dust removal effect and efficiency.

[0053] Optionally, the roller 120 has a working surface that contacts the electrode 400, and the axial direction of the roller 120 is a first direction X; wherein, the length of the air outlet 211 along the first direction X is greater than or equal to the length of the working surface along the first direction X.

[0054] In this embodiment of the application, by setting the length of the air outlet 211 along the first direction X to be greater than or equal to the length of the working surface of the roller 120 along the first direction X, the airflow at the air outlet 211 can be more evenly distributed on the surface of the electrode 400, and can also take into account every position of the electrode 400, thereby improving the dust removal effect.

[0055] In some embodiments, the air outlet 211 can be configured as a slit extending along the first direction X. The length of the slit along the first direction X is greater than or equal to the length of the working surface of the roller 120 along the first direction X. In this way, the airflow flowing out of the air outlet 211 can form an air knife. The air knife has a higher airflow velocity and a more concentrated airflow, which can more easily and thoroughly remove residual dust from the surface of the electrode 400 and the etching lines, thereby further improving the dust removal effect of the dust removal device.

[0056] Optionally, the length of the dust removal port along the first direction X is greater than or equal to the length of the working surface along the first direction X.

[0057] In this embodiment, by setting the length of the suction port 221 along the first direction X to be greater than or equal to the length of the working surface of the roller 120 along the first direction X, the suction area of ​​the suction port 221 on the surface of the electrode 400 can be more uniform, reducing the suction blind zone, thereby allowing more dust blown off the surface of the electrode 400 to be sucked into the dust collection chamber 220, thus improving the dust removal effect.

[0058] Optionally, the fan assembly includes a first fan that is in communication with the outlet chamber 210 and is used to provide positive pressure airflow into the outlet chamber 210.

[0059] In this embodiment, by providing a first fan and connecting it to the exhaust chamber 210, a positive pressure airflow is supplied to the exhaust chamber 210 using the airflow generated by the first fan. Under the action of the positive pressure airflow, dust on the surface of the electrode 400 and within the etching lines can be forcibly discharged, thereby achieving the function of cleaning the electrode 400. It is understood that the positive pressure airflow is the airflow generated by the first fan within the exhaust chamber 210, and the air pressure within the exhaust chamber 210 is greater than the air pressure within the dust removal space.

[0060] Optionally, the fan assembly includes a second fan that is connected to the dust collection chamber 220 and is used to provide negative pressure airflow into the dust collection chamber 220.

[0061] In this embodiment, by providing a second fan and connecting it to the dust collection chamber 220, a negative pressure airflow can be created within the dust collection chamber 220. This negative pressure airflow draws dust particles detached from the electrode 400 into the dust collection chamber 220, preventing dust accumulation or overflow from the dust removal space and thus avoiding contamination of other equipment. It is understood that the negative pressure airflow is the airflow generated by the second fan within the dust collection chamber 220, and the air pressure within the dust collection chamber 220 is lower than the air pressure within the dust removal space.

[0062] Optionally, such as Figure 2 As shown, the first fan includes a first fan body and a first pipe 310. The first pipe 310 is connected to the air outlet chamber 210, and the first fan body is connected to the first pipe 310. The first fan body provides positive pressure airflow to the air outlet chamber 210 through the first pipe 310. The flow cross-sectional area of ​​the air outlet 211 is smaller than the flow cross-sectional area of ​​the first pipe 310.

[0063] In this embodiment, by setting a first duct 310 and setting the flow cross-sectional area of ​​the air outlet 211 to be smaller than that of the first duct 310, the airflow velocity at the air outlet 211 will increase while the air volume provided by the first fan body remains constant. The higher positive pressure airflow velocity can accelerate the movement speed of dust, thereby improving dust removal efficiency. The flow cross-sectional area of ​​the air outlet 211 refers to the cross-sectional area of ​​the air outlet 211 along the flow direction perpendicular to the airflow in the air outlet 211, and the flow cross-sectional area of ​​the first duct 310 refers to the cross-sectional area of ​​the portion of the first duct 310 connected to the first fan body along the flow direction perpendicular to the airflow in the first duct 310.

[0064] Optionally, such as Figure 2 As shown, the second fan includes a second fan body and a second pipe 320. The second pipe 320 is connected to the dust collection chamber 220, and the second fan body is connected to the second pipe 320. The second fan body provides negative pressure airflow to the dust collection chamber 220 through the second pipe 320. The flow cross-sectional area of ​​the dust suction port 221 is smaller than the flow cross-sectional area of ​​the second pipe 320.

[0065] In this embodiment, by providing a second pipe 320 and setting the flow cross-sectional area of ​​the dust suction port 221 to be smaller than that of the second pipe 320, the wind speed at the dust suction port 221 can be increased, thereby improving the dust absorption rate. The flow cross-sectional area of ​​the dust suction port 221 refers to the cross-sectional area of ​​the dust suction port 221 along the flow direction perpendicular to the airflow direction, and the flow cross-sectional area of ​​the second pipe 320 refers to the cross-sectional area of ​​the portion of the second pipe 320 connected to the second fan body along the flow direction perpendicular to the airflow direction.

[0066] It is understandable that the farther the air outlet 211 or the dust suction port 221 is from the electrode 400 (i.e., the dust source), the lower the wind speed near the electrode 400, which leads to poor dust removal effect and low dust collection rate. In some embodiments, the distance between the air outlet 211 and the dust suction port 221 and the roller 120 is set to just allow the electrode 400 to pass through, so that while ensuring the electrode 400 can pass through smoothly, the distance between the dust suction port 221 and the air outlet 211 and the electrode 400 is minimized. This allows the positive and negative pressure airflows near the electrode 400 to have higher wind speeds, thereby improving the dust removal effect and dust collection rate.

[0067] Optionally, the dust removal component 200 is provided with at least two dust suction ports 221, which are respectively located on both sides of the air outlet 211.

[0068] In the embodiments of this application, by providing at least two dust suction ports 221 in the dust removal component 200, and distributing the at least two dust suction ports 221 on both sides of the air outlet 211, the two dust suction ports 221 can more effectively capture the dust on the surface of the stripped electrode 400, while increasing the dust suction area of ​​the dust removal device, thereby improving the dust removal efficiency of the dust removal device.

[0069] Optionally, such as Figure 2 and Figure 3 As shown, there are two suction ports 221, which are located on both sides of the air outlet 211, and the distance between the two suction ports 221 and the air outlet 211 is equal.

[0070] In this embodiment, by distributing two suction ports 221 on both sides of the air outlet 211 and equidistant from the air outlet 211, a more uniform negative pressure airflow field can be formed on both sides of the air outlet 211, allowing dust to be uniformly sucked in under the action of the negative pressure airflow, while reducing the escape of dust that has detached from the surface of the electrode 400, thereby improving dust removal efficiency.

[0071] Optionally, such as Figure 5 As shown in the figure, this application embodiment also provides an electrode 400 processing equipment, including the dust removal device in the above embodiment.

[0072] In this embodiment, the electrode 400 processing equipment includes the dust removal device and laser etching device described in the above embodiments. The laser etching device uses a laser to etch lines of a certain depth and width on the surface of the electrode 400. Then, the dust removal device provided in this application removes the dust remaining on the surface of the electrode 400 and within the etched lines. An air outlet 211 and a dust suction port 221 are simultaneously provided on the side of the dust removal component 200 facing the dust removal space. An air outlet chamber 210 and a dust collection chamber 220 are provided separately in the dust removal component 200, and the air outlet 211 communicates with the air outlet chamber 210 and the dust removal space, while the dust suction port 221 communicates with the dust collection chamber 220 and the dust removal space. This application utilizes a fan assembly to introduce airflow into the outlet chamber 210 and / or the dust collection chamber 220, allowing the airflow to flow from the outlet 211 into the dust removal space, thereby removing impurities from the surface of the electrode 400 within the dust removal space. Simultaneously, the airflow within the dust removal space is guided to the dust collection chamber 220 through the suction port 221, rapidly drawing impurities leaving the electrode surface into the dust collection chamber 220, preventing the accumulation of impurities blown off the electrode 400 surface within the dust removal space. This ensures that impurities on the electrode 400 surface are sufficiently removed and that impurities detached from the electrode 400 are promptly carried away from the dust removal space, preventing secondary contamination of the electrode 400 and thus improving the dust removal efficiency of the dust removal device.

[0073] 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 this application. 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.

[0074] Although embodiments of this application 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 this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A dust removal device, characterized in that, include: The main body of the device, dust removal components, and fan assembly; The dust removal component is connected to the main body of the device and encloses a dust removal space for the electrode sheet to pass through. The dust removal component has an air outlet chamber and a dust collection chamber that are separated from each other. The dust removal component has an air outlet and a dust suction port on the side facing the dust removal space. The air outlet connects the dust removal space and the air outlet chamber, and the dust suction port connects the dust removal space and the dust collection chamber. The fan assembly is connected to the air outlet chamber and the dust collection chamber respectively, and is used to provide airflow to the air outlet chamber and / or the dust collection chamber to remove impurities from the surface of the electrode sheet through the airflow.

2. The dust removal device according to claim 1, characterized in that, The main body of the device includes a dust cover and a support frame; The bracket and the dust removal component are connected, the dust cover is connected to the bracket, and the dust cover, the bracket, and the dust removal component enclose the dust removal space. The dust cover is provided with an outlet and an inlet that communicate with the dust removal space, for the electrode to enter and exit the dust removal space.

3. The dust removal device according to claim 2, characterized in that, The dust removal device also includes a roller, which is disposed in the dust removal space and is rotatably connected to the bracket. The roller is used to wind the electrode plate, and the air outlet and the dust suction port face the roller.

4. The dust removal device according to claim 3, characterized in that, The surface of the dust removal component facing the roller is curved, and the curved surface protrudes in a direction away from the roller. The air outlet and the dust suction port are located in the curved surface.

5. The dust removal device according to claim 3, characterized in that, The roller has a working surface that contacts the electrode sheet, and the axial direction of the roller is a first direction; Wherein, the length of the air outlet along the first direction is greater than or equal to the length of the working surface along the first direction; And / or, the length of the suction port along the first direction is greater than or equal to the length of the working surface along the first direction.

6. The dust removal device according to claim 1, characterized in that, The fan assembly includes a first fan, which is connected to the air outlet chamber and is used to provide positive pressure airflow into the air outlet chamber. And / or, the fan assembly includes a second fan, which is in communication with the dust collection chamber and is used to provide negative pressure airflow into the dust collection chamber.

7. The dust removal device according to claim 6, characterized in that, The first fan includes a first fan body and a first pipe. The first pipe is connected to the air outlet chamber. The first fan body is connected to the first pipe. The first fan body provides positive pressure airflow to the air outlet chamber through the first pipe. The flow cross-sectional area of ​​the air outlet is smaller than the flow cross-sectional area of ​​the first pipe. And / or, the second fan includes a second fan body and a second duct, the second duct is connected to the dust collection chamber, the second fan body is connected to the second duct, the second fan body provides negative pressure airflow to the dust collection chamber via the second duct, and the flow cross-sectional area of ​​the dust suction port is smaller than the flow cross-sectional area of ​​the second duct.

8. The dust removal device according to any one of claims 1-7, characterized in that, The dust removal component is provided with at least two dust suction ports, which are respectively located on both sides of the air outlet.

9. The dust removal device according to claim 8, characterized in that, The dust suction port is provided as two, which are respectively located on both sides of the air outlet, and the distance between the two dust suction ports and the air outlet is equal.

10. An electrode processing device, characterized in that, Includes the dust removal device as described in any one of claims 1-9.

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