Dust removal device, dust removal system, and control method for dust removal system

Abstract

The application discloses a dust removal device, a dust removal system and a control method of the dust removal system. The dust removal device comprises a blowing mechanism, the blowing mechanism is provided with an air duct and comprises a fixed part and a movable part. The movable part is arranged around the fixed part in a first direction, and at least part of the air duct is arranged in the movable part. The movable part is provided with a first air outlet hole and a second air outlet hole which are communicated with the air duct, and the first air outlet hole and the second air outlet hole are arranged on one side in the first direction. A plurality of first air outlet holes are arranged into at least one first hole group, and a plurality of second air outlet holes are arranged into at least one second hole group. In the first hole group, one first air outlet hole is arranged into a first middle hole, and the remaining first air outlet holes are arranged into first edge holes, and a plurality of first edge holes surround the first middle hole. In the second hole group, one second air outlet hole is arranged into a second middle hole, and the remaining second air outlet holes are arranged into second edge holes, and a plurality of second edge holes surround the second middle hole. The technical scheme can improve the dust removal effect on the dust removal object.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a dust removal device, a dust removal system, and a control method for the dust removal system. Background Technology

[0002] In related technologies, electrode components are prone to accumulating dust and other foreign matter during transport or processing, which can affect the normal use of the subsequently fabricated battery device. Therefore, dust removal from electrode components has become an urgent technical problem to be solved. Summary of the Invention

[0003] The main objective of this application is to provide a dust removal device, a dust removal system, and a control method for the dust removal system, which aims to improve the dust removal effect of the dust removal device.

[0004] To achieve the above objectives, the dust removal device proposed in this application includes an air blowing mechanism. The air blowing mechanism has an air duct and includes a fixed member and a movable member. The movable member is rotatably mounted on the fixed member about an axis parallel to a first direction. At least a portion of the air duct is located on the movable member, and the air duct has an air inlet. The movable member has a first air outlet and a second air outlet communicating with the air duct. The first air outlet and the second air outlet are disposed on one side facing the first direction. The first air outlet and the second air outlet are offset from the rotation axis of the movable member, and the first air outlet is closer to the rotation axis of the movable member than the second air outlet. The airflow force generated by the first air outlet is greater than that generated by the second air outlet; there are multiple first air outlets configured into at least one first hole group, and there are multiple second air outlets configured into at least one second hole group; in the first hole group, one first air outlet is configured as a first intermediate hole, and the remaining first air outlets are configured as first edge holes, with multiple first edge holes arranged around the first intermediate hole; in the second hole group, one second air outlet is configured as a second intermediate hole, and the remaining second air outlets are configured as second edge holes, with multiple second edge holes arranged around the second intermediate hole.

[0005] The dust removal device in this application includes a blowing mechanism comprising a fixed component and a movable component. The movable component has a first air outlet and a second air outlet communicating with an air passage. This allows the blowing mechanism to perform rotary blowing dust removal on the surface of the electrode assembly or other dust-removing component by driving the movable component to rotate. The airflow from the first and second air outlets can sweep and impact dust and other foreign matter on the surface. Furthermore, the first and second air outlets are offset from the rotation axis of the movable component, with the first air outlet closer to the rotation axis than the second air outlet. The airflow force generated by the first air outlet is greater than that generated by the second air outlet, allowing for different blowing forces to be applied to the central and edge areas of the surface of the electrode assembly or other dust-removing component. The central area of ​​the surface is typically where dust and other foreign matter adhere, and its strength is higher than that of the edge areas, making it less susceptible to damage. At this point, the system can effectively target areas with high concentrations of dust and other foreign matter for dust removal, while also providing reasonable protection for areas with relatively lower strength and greater vulnerability. In other words, the dust removal device in this solution utilizes airflow from the first and second air outlets to sweep and impact dust and other foreign matter on the surface to be cleaned from multiple directions. The use of different blowing forces in the central and edge areas of the surface improves the dust removal effect on electrode components and other parts requiring cleaning, while simultaneously achieving a good balance between effective dust removal and structural protection. Furthermore, by configuring multiple first air outlets into at least one first hole group and multiple second air outlets into at least one second hole group, the airflow can converge at the first and second hole groups, increasing the airflow rate. This achieves better coverage and dust removal of the area to be cleaned while simultaneously increasing the impact force on dust and foreign matter, thus improving the dust removal effect. Moreover, the multiple first air outlets in the first hole group are also configured as a first central hole and first edge holes surrounding the first central hole, which improves the compactness between the multiple first air outlets and further enhances the convergence effect of the airflow. Furthermore, due to its compact design, multiple first air outlets can be easily arranged within the limited volume of moving parts. Similarly, by setting the multiple second air outlets of the second hole group as second central holes and second edge holes surrounding the second central holes, the compactness between the multiple second air outlets can be improved, further enhancing the airflow convergence effect. This compact design also allows for the convenient arrangement of multiple second air outlets within the limited volume of moving parts. In addition, this arrangement can reduce the possibility of interference between the airflows formed by the first and second hole groups. In other words, it balances dust removal efficiency with the convenience of structural design.

[0006] In some embodiments, the spacing between the first air outlets in the first hole group and the spacing between the second air outlets in the second hole group are both less than the minimum spacing between the first hole group and the second hole group. Therefore, the airflow generated by the first hole group and the second hole group is less likely to interfere with each other, which is beneficial for further improving the dust removal effect of the dust removal device on the electrode assembly.

[0007] In some embodiments, the movable component has an air outlet surface, on which a first protrusion and a second protrusion are provided; a first intermediate hole is provided on the first protrusion, a second intermediate hole is provided on the second protrusion, and a first edge hole and a second edge hole are provided on the air outlet surface. This improves the orderly regularity of the converging airflow formed by the first and second hole groups, thereby improving the dust removal effect on the surface to be cleaned.

[0008] In some embodiments, the movable component includes a first segment and a second segment. The first segment extends along a first direction, and one end of the first segment is rotatably mounted on a fixed component. The second segment is connected to the end of the first segment away from the fixed component and extends along a second direction, which intersects the first direction. At least a portion of the air passage is disposed in the first and second segments. A first hole group and a second hole group are both disposed in the second segment and are arranged at intervals along the extending direction of the second segment. This reduces the volume requirement of the movable component and improves the compactness of the air blowing mechanism structure.

[0009] In some embodiments, the maximum rotational profile diameter formed by the first vent is defined as D1, and the maximum rotational profile diameter formed by the second vent is defined as D2, satisfying the relationship: 0.6≤D1 / D2≤0.7. Therefore, the first vent can be better adapted to the middle region of the corresponding electrode assembly for air blowing dust removal, thereby improving the zoned dust removal effect of the dust removal device on the electrode assembly.

[0010] In some embodiments, the area of ​​the first air outlet is larger than the area of ​​the second air outlet. This facilitates achieving a greater airflow force from the first air outlet than from the second air outlet.

[0011] In some embodiments, the movable component is provided with at least two third air outlets, which are connected to an air passage. The at least two third air outlets are arranged circumferentially toward the rotation of the movable component, with the two third air outlets blowing in opposite directions. The areas of the first and second air outlets are both larger than the areas of the third air outlets. Thus, airflow jet drive is directly utilized on the movable component, which helps to simplify the structural design of the dust removal device.

[0012] In some embodiments, the dust removal device further includes a drive mechanism, which comprises a rotary drive component and a transmission assembly. The transmission assembly is drively connected to the rotary drive component and the movable component, so that the rotary drive component drives the movable component to rotate via the transmission assembly. This allows the airflow within the air duct to be fully utilized for dust removal on the surface to be cleaned.

[0013] In some embodiments, the air passage includes a first channel and a second channel. The first channel is disposed on the fixed member, and an air inlet is disposed on the fixed member and communicates with the first channel. The second channel is disposed on the movable member and communicates with the first channel. A first air outlet and a second air outlet are communicated with the second channel. Thus, the air inlet on the fixed member can be connected to the air pump that provides airflow through the air inlet pipe, so that the air inlet pipe does not obstruct the rotation of the movable member.

[0014] In some embodiments, the diameters of both the first and second air outlets are greater than or equal to 0.1 mm and less than 5 mm; and / or, the dust removal device further includes an air pump connected to the air inlet, the air pump having an airflow output pressure greater than or equal to 0.05 MPa and less than or equal to 0.5 MPa. This allows for a better balance between dust removal efficiency for the electrode assembly and structural protection of the electrode assembly during the air-blowing dust removal process.

[0015] In some embodiments, the dust removal device further includes a housing with one end open, an air blowing mechanism disposed inside the housing, and a first and second air outlet in the air blowing mechanism facing the opening of the housing; the dust removal device includes a suction pipe with one end connected to the space inside the housing. This allows for the timely removal of dust and other foreign matter from the electrode assembly after it has been blown away.

[0016] In some embodiments, the dust removal device further includes an ionizer, which is disposed inside a housing and configured to blow ionized air toward an opening in the housing. This neutralizes electrostatically adsorbed foreign matter, facilitating the blowing mechanism to remove such foreign matter.

[0017] This application also proposes a dust removal system, including at least two dust removal devices, such as those described in any of the above embodiments. The at least two dust removal devices are configured as a first dust removal device and a second dust removal device. The first dust removal device is configured to blow air to remove dust from the surface to be cleaned formed by the end face of the electrode assembly, and the second dust removal device is configured to blow air to remove dust from the surface to be cleaned formed by the side face of the electrode assembly. This achieves targeted dust removal of the end face and side face of the electrode assembly, improving the dust removal effect on both surfaces.

[0018] This application also proposes a control method for a dust removal system, such as the dust removal system described above. The control method includes the following steps: before the electrode assembly welding manifold, controlling a first dust removal device to blow air to remove dust from the surface to be cleaned formed by the end face of the electrode assembly; before the electrode assembly is installed into the housing, controlling a second dust removal device to blow air to remove dust from the surface to be cleaned formed by the side face of the electrode assembly. This reduces the possibility of recontamination during transportation after cleaning the end face, and also reduces the possibility of recontamination during transportation after cleaning the side face. Attached Figure Description

[0019] 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 the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the dust removal device of this application;

[0021] Figure 2 This is a partial structural schematic diagram of an embodiment of the dust removal device of this application;

[0022] Figure 3 This is a cross-sectional schematic diagram of the air blowing mechanism in one embodiment of the dust removal device of this application;

[0023] Figure 4 This is a schematic diagram of the structure of a moving part in one embodiment of the dust removal device of this application;

[0024] Figure 5 This is a schematic diagram of a moving part in one embodiment of the dust removal device of this application;

[0025] Figure 6 This is a schematic diagram showing the state of the moving part removing dust from the end face of the electrode assembly in one embodiment of the dust removal device of this application;

[0026] Figure 7 This is a flowchart illustrating an embodiment of the control method for the dust removal system of this application.

[0027] Explanation of icon numbers:

[0028] 100. Dust removal device; 10. Air blowing mechanism; 10a. Air duct; 10a1. First channel; 10a2. Second channel; 10a21. First sub-channel; 10a22. Second sub-channel; 10b. First hole group; 10b1. First air outlet; 10b2. First intermediate hole; 10b3. First edge hole; 10c. Second hole group; 10c1. Second air outlet; 10c2. Second intermediate hole; 10c3. Second edge hole; 11. Fixing component; 11a. Inlet 13. Air vent; 131. Movable part; 133. First section body; 133. Second section body; 133a. Air outlet surface; 1331. First protrusion; 1333. Second protrusion; 133b. Third air outlet; 20. Air pump; 30. Air inlet pipe; 31. Solenoid valve; 40. Cover; 50. Dust suction pipe; 60. Ionizing air generator; 200. Electrode assembly; 201. Surface to be dusted; 2011. Middle area; 2012. Edge area; 2013. End face; 2014. Side face.

[0029] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] 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 a part of the embodiments of this application, and not all of the 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 scope of protection of this application.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0033] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0034] Battery devices, which are devices used to store electrical energy, are widely used not only in energy storage power systems such as hydropower, thermal power, wind power and solar power plants, but also in electric vehicles such as electric bicycles, electric motorcycles, electric cars, rail trains and other fields.

[0035] Furthermore, the battery device may include a battery case and individual battery cells disposed within the battery case. The battery case may include a casing and a cover that closes to the casing to enclose a cavity for housing the individual battery cells, which are the smallest units constituting a battery for providing electrical energy. The individual battery cells may be secondary or primary batteries; they may also be lithium-sulfur, sodium-ion, or magnesium-ion batteries, but are not limited to these. Additionally, the individual battery cells may be cylindrical, flat, cuboid, or other shapes. Furthermore, the battery case may contain multiple individual battery cells, which may be connected in series, in parallel, or in a hybrid connection including both series and parallel connections.

[0036] In a cylindrical battery, a single battery cell may include a casing, a top cover, an electrode assembly, and a current collector assembly. The casing may be cylindrical with an opening at one end, and the top cover may close the opening of the casing to form a closed cavity. The electrode assembly, which is the component in the battery cell where the actual electrochemical reaction occurs, may be disposed within this cavity. This electrode assembly may include a positive electrode, a negative electrode, and a separator located between them, and is formed by winding the positive electrode, negative electrode, and separator to create a cylindrical shape that fits the casing. The current collector assembly, which may be disposed within the cavity, includes a positive current collector and a negative current collector. The positive current collector can be welded to the positive tab on the positive electrode, and the negative current collector can be welded to the negative tab on the positive electrode.

[0037] In the manufacturing process of cylindrical batteries, after the electrode assembly is wound and formed, it is typically supported by a support cup for transport to various processing stations, such as the current collector welding station. However, to facilitate the ejection or positioning of the electrode assembly inserted into the support cup at one end, an opening is provided in the center of the bottom of the support cup. During transportation, the support cup will experience wear and tear from the conveyor line, generating dust and other foreign matter. This dust and other foreign matter will adhere to the corresponding area of ​​the electrode assembly end face through the opening under electrostatic attraction. These dust and other foreign matter are low-boiling-point impurities, which will evaporate rapidly during the welding process, providing high recoil force and causing welding bursts. Therefore, it is necessary to perform appropriate dust removal on the end face of the electrode assembly.

[0038] In addition, the positive and negative electrode sheets are cut during the winding process of the electrode assembly. The electrode material will fall to the side of the electrode assembly. There is also a risk that the metal particles generated during the flattening process of the electrode sheets will stick to the side of the electrode assembly. These metal particles may puncture the blue adhesive and cause self-discharge and fire. Therefore, it is also necessary to clean the side of the electrode assembly accordingly.

[0039] It is evident that both the end faces and sides of the electrode assembly require dust removal. Furthermore, on the end faces, dust and other foreign matter primarily adhere to the areas corresponding to the openings, i.e., the central area of ​​the end face. On the sides of the electrode assembly, the strength of the tabs and the insulating film covering them at both ends along the axial direction is lower than that in the central area, making them more susceptible to damage. This results in inconsistent dust removal across both the end faces and sides of the electrode assembly. Consequently, the use of air knives for simultaneous dust removal of the entire end face or side surface in related technologies fails to effectively target areas with high dust and foreign matter concentration, thus affecting the dust removal efficiency, or it fails to effectively protect vulnerable areas with lower strength.

[0040] Therefore, based on the above considerations, in order to solve the technical problems of poor dust removal effect on electrode components in related technologies and the inability to effectively protect vulnerable areas of electrode components with low strength during the dust removal process, this application proposes a novel dust removal device. This dust removal device innovatively sets the blowing mechanism to include a fixed part and a movable part rotatably mounted on the fixed part, and provides a first air outlet and a second air outlet on the movable part. This enables the blowing mechanism to perform rotary blowing dust removal on the surface of the component to be dusted, so as to sweep and strike dust and other foreign objects from multiple directions. At the same time, by setting the airflow force formed by the first air outlet, which is closer to the rotation axis of the movable part, to be greater than the airflow force formed by the second air outlet, it is possible to use a greater blowing force to remove dust from the middle area of ​​the surface to be dusted. This achieves highly targeted dust removal of the middle and edge areas of the surface of the electrode component to be dusted, which is beneficial to improving the dust removal effect and taking into account the structural protection of the electrode component.

[0041] Furthermore, it should be noted that the dust removal device proposed in this application can be used for dust removal of electrode assemblies, and of course, it can also be used for dust removal of other objects. That is, this application does not limit the specific type of the object to be dusted by the dust removal device. For ease of explanation, the following description uses the dust removal of electrode assemblies as an example.

[0042] Please refer to the reference. Figures 1 to 4 In one embodiment of this application, the dust removal device 100 includes an air blowing mechanism 10, which has an air passage 10a. The air blowing mechanism 10 includes a fixed member 11 and a movable member 13. The movable member 13 is rotatably disposed on the fixed member 11 about an axis parallel to the first direction X. At least a portion of the air passage 10a is disposed on the movable member 13. The movable member 13 has a first air outlet 10b1 and a second air outlet 10c1 communicating with the air passage 10a. The first air outlet 10b1 and the second air outlet 10c1 are disposed on the side facing the first direction X. The first air outlet 10b1 and the second air outlet 10c1 are arranged offset from the rotation axis of the movable member 13, and the first air outlet 10b1 is closer to the rotation axis of the movable member 13 than the second air outlet 10c1. The airflow force generated by the first air outlet 10b1 is greater than the airflow force generated by the second air outlet 10c1.

[0043] The air blowing mechanism 10 can be used to provide an air passage 10a, a first air outlet 10b1, and a second air outlet 10c1. The air blowing mechanism 10 can be cylindrical, cuboid, or an irregular shape formed by combining at least two cylinders; this application does not limit the shape of the air blowing mechanism 10. The air passage 10a can have an air inlet 11a for allowing airflow to enter and be guided to the first air outlet 10b1 and the second air outlet 10c1. The air passage 10a can be linear, zigzag, or arc-shaped; this application does not limit the shape type of the air passage 10a. Furthermore, the air passage 10a can be configured as described below, including a first channel 10a1 and a second channel 10a2, respectively disposed on the fixed member 11 and the movable member 13. Of course, in some embodiments, the air passage 10a can also be entirely disposed on the movable member 13. At this time, an air inlet pipe 30 can be installed on the fixing member 11 to communicate with the air passage 10a, and the center line of the air inlet pipe 30 can coincide with the rotation axis of the movable member 13. Alternatively, an air inlet pipe 30 can be directly installed at one end of the fixing member 11 to communicate with the air passage 10a.

[0044] The fixing member 11 provides a mounting position for rotating the movable member 13. The movable member 13 can be configured with a first air outlet 10b1 and a second air outlet 10c1, both offset from the rotation axis of the movable member 13, with the first air outlet 10b1 being closer to the rotation axis than the second air outlet 10c1. When the dust removal device 100 is in normal installation and use, with the ground as a reference, the first direction X can be vertical. In this case, the first air outlet 10b1 and the second air outlet 10c1 can be located on one side of the rotation axis of the movable member 13 in the horizontal direction, both facing downwards. Furthermore, the centerline of the first air outlet 10b1 can be vertical to improve structural regularity and manufacturing convenience. Of course, the centerline of the first air outlet 10b1 can also be inclined, and gradually moved away from the rotation axis of the movable member 13 from top to bottom, so as to blow the airflow obliquely to the dust-removing surface 201 and facilitate blowing dust and other foreign objects to the outside of the dust-removing surface. Similarly, the centerline of the second air outlet 10c1 can also be vertical or inclined, and gradually moved away from the rotation axis of the movable member 13 from top to bottom.

[0045] When the dust removal device 100 is used to remove dust from the electrode assembly 200, such as Figure 6As shown, the electrode assembly 200 can be formed into a cylindrical shape by winding a positive electrode, a negative electrode, and a separator located between them. In this case, the surface to be cleaned 201 can be the end face 2013 of the electrode assembly 200 along its axial direction, or it can be the side face 2014 of the electrode assembly 200 surrounding its axis. When the surface to be cleaned 201 is formed from the end face 2013 of the electrode assembly 200, the edge region 2012 in the surface to be cleaned 201 can surround the middle region 2011. Furthermore, the region within 2 / 3 of the diameter of the end face 2013 can be the middle region 2011, and the region outside 2 / 3 of the diameter of the end face 2013 can be the edge region 2012. When the surface to be cleaned 201 is formed from the side face 2014 of the electrode assembly 200, the number of edge regions 2012 in the surface to be cleaned 201 can be two, and they are distributed on both sides of the middle region 2011 along the axial direction of the electrode assembly 200. Furthermore, the region from 1 / 6 to 5 / 6 of the length along the axis of the electrode assembly 200 can be designated as the middle region 2011, and the regions from each end of the axis of the electrode assembly 200, each representing 1 / 6 of its length, can be designated as the edge regions 2012. In this case, since the distance between the first vent 10b1 and the rotation axis of the movable member 13 is less than the distance between the second vent 10c1 and the rotation axis of the movable member 13, the first vent 10b1 is closer to the rotation axis of the movable member 13. This allows the first vent 10b1 to be used for blowing air towards the middle region 2011 of the surface to be cleaned 201; the second vent 10c1 can be used for blowing air towards the edge region 2012 of the surface to be cleaned 201. The number of first vents 10b1 can be one, or two or more. The number of second vents 10c1 can be one, or two or more. Furthermore, the airflow force generated by the first air outlet 10b1 is greater than that generated by the second air outlet 10c1. This means that the impact force of the airflow from the first air outlet 10b1 on the dust removal surface 201 is greater than that generated by the airflow from the second air outlet 10c1. In this case, the area of ​​the first air outlet 10b1 can be set to be larger than the area of ​​the second air outlet 10c1, as described below, so that the airflow force generated by the first air outlet 10b1 is greater than that generated by the second air outlet 10c1. Alternatively, an airflow with a higher atmospheric pressure or velocity can be supplied to the first air outlet 10b1 to achieve the same effect.

[0046] The dust removal device 100 in this application includes a blowing mechanism 10 comprising a fixed member 11 and a movable member 13. The movable member 13 has a first air outlet 10b1 and a second air outlet 10c1 communicating with the air passage 10a. This allows the blowing mechanism 10 to perform rotary blowing dust removal on the dust-to-be-cleaned surface 201 of the electrode assembly 200, which is waiting to be cleaned. At this time, the airflow from the first air outlet 10b1 and the second air outlet 10c1 can sweep and strike dust and other foreign objects on the dust-to-be-cleaned surface 201 from multiple directions. Furthermore, the first vent 10b1 and the second vent 10c1 are arranged offset from the rotation axis of the movable member 13, and the first vent 10b1 is closer to the rotation axis of the movable member 13 than the second vent 10c1. The airflow force generated by the first vent 10b1 is greater than that generated by the second vent 10c1, allowing for different blowing forces to be applied to the middle region 2011 and the edge region 2012 of the surface 201 of the electrode assembly 200 awaiting dust removal, respectively. The middle region 2011 of the surface 201 of the electrode assembly 200 is typically the main area where dust and other foreign matter adhere, and its strength is higher than that of the edge region 2012, making it less susceptible to damage. Therefore, targeted dust removal can be performed on the main areas adhering to dust and other foreign matter, while providing reasonable protection for the relatively weaker and more vulnerable areas. In other words, the structure of the dust removal device 100 in this solution allows for multi-directional blowing and impacting of dust and other foreign objects on the dust removal surface 201 by the airflow blown out from the first air outlet 10b1 and the second air outlet 10c1. By using different blowing forces to remove dust in the middle area 2011 and the edge area 2012 of the dust removal surface 201, the dust removal effect on the electrode assembly 200 and other dust removal components is improved. At the same time, a good balance is achieved between the dust removal effect on the dust removal components and the structural protection of the dust removal components.

[0047] Please refer to the reference. Figures 3 to 5 In one embodiment of this application, the area of ​​the first air outlet 10b1 is larger than the area of ​​the second air outlet 10c1. At this time, the air flow rate of the first air outlet 10b1 is greater than the air flow rate of the second air outlet 10c1. When the airflow reaches the dust removal surface 201, it is not easily dissipated and still has a large flow velocity and a large dust removal impact force, that is, a large airflow blowing force is formed.

[0048] In this embodiment, the area of ​​the first air outlet 10b1 is set to be larger than the area of ​​the second air outlet 10c1, so that the two can use the same airflow source to achieve the purpose of the airflow blowing force formed by the first air outlet 10b1 being greater than the airflow blowing force formed by the second air outlet 10c1. This helps to simplify the structural setting of the blowing mechanism 10 and improve the convenience of its processing and manufacturing.

[0049] Please refer to Figure 3 In one embodiment of this application, the maximum rotational profile diameter formed by the first vent 10b1 is defined as D1, and the maximum rotational profile diameter formed by the second vent 10c1 is defined as D2, satisfying the relationship: 0.6≤D1 / D2≤0.7.

[0050] D1 can be formed by the contour formed by the rotation of the first vent 10b1, which is furthest from the axis of rotation of the movable member 13, during the rotation of the movable member 13. Similarly, D2 can be formed by the contour formed by the rotation of the second vent 10c1, which is furthest from the axis of rotation of the movable member 13, during the rotation of the movable member 13.

[0051] In this embodiment, the ratio of D1 to D2 is set to 0.6 to 0.7, so that when the dust removal device 100 removes dust from the end face 2013 of the electrode assembly 200, the first air outlet 10b1 can better adapt to the area within 2 / 3 of the diameter of the end face 2013 of the electrode assembly 200, or the area within 1 / 6 to 5 / 6 of the length on the axis of the electrode assembly 200. This helps to improve the adaptability of the dust removal device 100 to the zoned dust removal of the electrode assembly 200, so as to improve the dust removal effect of the electrode assembly 200.

[0052] Please refer to the reference. Figures 3 to 5 In one embodiment of this application, there are multiple first vent holes 10b1, configured as at least one first vent group 10b, and multiple second vent holes 10c1, configured as at least one second vent group 10c; the spacing between each first vent hole 10b1 in the first vent group 10b and the spacing between each second vent hole 10c1 in the second vent group 10c are both less than the minimum spacing between the first vent group 10b and the second vent group 10c.

[0053] The first air outlets 10b1 in the first hole group 10b can be arranged in a circular array or a rectangular array, etc., and this application does not limit this. Similarly, the second air outlets 10c1 in the second hole group 10c can be arranged in a circular array or a rectangular array, etc., and this application does not limit this. In addition, when there are at least two first hole groups 10b and two hole groups 10c, the spacing between the first air outlets 10b1 in the first hole group 10b and the spacing between the second air outlets 10c1 in the second hole group 10c are both less than the minimum spacing between the first hole groups 10b and the minimum spacing between the second hole groups 10c and the second hole groups 10c.

[0054] In this embodiment, multiple first air outlets 10b1 are configured into a first hole group 10b, and multiple second air outlets 10c1 are configured into a second hole group 10c. This allows the airflow to converge and increase at the first hole group 10b and the second hole group 10c, achieving better coverage and dust removal of the area to be cleaned while increasing the impact force on dust and foreign objects. At the same time, the spacing between each first air outlet 10b1 and the spacing between each second air outlet 10c1 are both smaller than the minimum spacing between the first hole group 10b and the minimum spacing between the second hole group 10c. This also makes it less likely for the airflow formed by the first hole group 10b and the second hole group 10c to interfere with each other, which is beneficial to further improve the dust removal effect of the dust removal device 100 on the electrode assembly 200.

[0055] Please refer to Figure 5 In one embodiment of this application, in the first hole group 10b, one first vent 10b1 is configured as a first intermediate hole 10b2, and the remaining first vents 10b1 are configured as first edge holes 10b3, with a plurality of first edge holes 10b3 surrounding the first intermediate hole 10b2; in the second hole group 10c, one second vent 10c1 is configured as a second intermediate hole 10c2, and the remaining second vents 10c1 are configured as second edge holes 10c3, with a plurality of second edge holes 10c3 surrounding the second intermediate hole 10c2.

[0056] In this embodiment, the plurality of first air outlets 10b1 of the first hole group 10b are configured as a first intermediate hole 10b2 and a first edge hole 10b3 surrounding the first intermediate hole 10b2. This improves the compactness among the plurality of first air outlets 10b1 and enhances the airflow convergence effect. Furthermore, the compact design allows for convenient arrangement of the plurality of first air outlets 10b1 within the limited volume of the movable member 13. Similarly, the plurality of second air outlets 10c1 of the second hole group 10c are configured as a second intermediate hole 10c2 and a second edge hole 10c3 surrounding the second intermediate hole 10c2. This improves the compactness among the plurality of second air outlets 10c1 and enhances the airflow convergence effect. Furthermore, the compact design allows for convenient arrangement of the plurality of second air outlets 10c1 within the limited volume of the movable member 13. This configuration also reduces the possibility of interference between the airflows formed by the first hole group 10b and the second hole group 10c.

[0057] Please refer to Figure 5In one embodiment of this application, the movable member 13 has an air outlet surface 133a, and the air outlet surface 133a is provided with a first protrusion 1331 and a second protrusion 1333; a first intermediate hole 10b2 is provided on the first protrusion 1331, a second intermediate hole 10c2 is provided on the second protrusion 1333, and a first edge hole 10b3 and a second edge hole 10c3 are provided on the air outlet surface 133a.

[0058] When the first direction X is vertical as described above, the vent surface 133a can be the lower surface of the movable part 13. Alternatively, the first protrusion 1331 and the movable part 13 can be an integrally formed structure to improve the sealing performance between them. Of course, the first protrusion 1331 and the movable part 13 can also be separate structures, which can then be connected by welding, bonding, or screws. Similarly, the second protrusion 1333 and the movable part 13 can also be an integrally formed structure to improve the sealing performance between them. Of course, the second protrusion 1333 and the movable part 13 can also be separate structures, which can then be connected by welding, bonding, or screws.

[0059] In this embodiment, the first intermediate hole 10b2 and the second intermediate hole 10c2 are respectively disposed on the first protrusion 1331 and the second protrusion 1333, so that the first hole group 10b can form an airflow dominated by the first intermediate hole 10b2, and the second hole group 10c can form an airflow dominated by the first intermediate hole 10b2, thereby improving the orderliness of the converging airflow formed by the first hole group 10b and the second hole group 10c, and thus improving the dust removal effect on the dust removal surface 201.

[0060] Furthermore, it should be noted that this application is not limited to this. In some embodiments, the first intermediate hole 10b2, the second intermediate hole 10c2, the first edge hole 10b3, and the second edge hole 10c3 may all be disposed on the air outlet surface 133a. Alternatively, the first intermediate hole 10b2 and the first edge hole 10b3 may both be disposed on the first protrusion 1331, and the second intermediate hole 10c2 and the second edge hole 10c3 may both be disposed on the second protrusion 1333.

[0061] Please refer to the reference. Figures 3 to 5 In one embodiment of this application, the movable member 13 includes a first segment 131 and a second segment 133. The first segment 131 extends along a first direction X, and one end of the first segment 131 is rotatably mounted on the fixing member 11. The second segment 133 is connected to the end of the first segment 131 away from the fixing member 11 and extends along a second direction Y, which intersects with the first direction X. At least a portion of the air passage 10a is disposed in the first segment 131 and the second segment 133. The first hole group 10b and the second hole group 10c are both disposed in the second segment 133 and are arranged at intervals along the extension direction of the second segment 133.

[0062] When the first direction X is vertical as described above, the second direction Y can be horizontal. Therefore, the first segment 131 can be vertically arranged, with its upper end rotatably connected to the fixing member 11. The second segment 133 can be horizontally arranged, with part of it located on one side of the first segment 131 in the horizontal direction and the other part located on the other side. In this case, the second segment 133 and the first segment 131 can form a T-shape. Of course, the second segment 133 can also be entirely located on one side of the first segment 131 in the horizontal direction. In this case, the second segment 133 and the first segment 131 can form an L-shape. In addition, the number of second segments 133 can be one, or two or more. Furthermore, the air outlet surface 133a described above can be provided on the second segment 133.

[0063] In this embodiment, the movable component 13 is configured to include a first segment 131 and a second segment 133 that intersect each other. The first hole group 10b and the second hole group 10c are both arranged along the extending direction of the second segment 133. This allows for convenient rotatable connection between the first segment 131 and the fixed component 11, while the second segment 133 facilitates the arrangement of the first hole group 10b and the second hole group 10c. This reduces the volume requirement of the movable component 13 and improves the compactness of the air blowing mechanism 10 structure.

[0064] Of course, this application is not limited to this. In other embodiments, the movable member 13 may only include the first segment 131. In this case, the first hole group 10b and the second hole group 10c may both be disposed on the lower surface of the first segment 131.

[0065] Please refer to the reference. Figure 4 and Figure 5 In one embodiment of this application, the movable member 13 is provided with at least two third air outlets 133b, which are connected to the air passage 10a. The at least two third air outlets 133b are arranged circumferentially toward the rotation of the movable member 13, and the blowing directions of the two third air outlets 133b are opposite. The area of ​​the first air outlet 10b1 and the area of ​​the second air outlet 10c1 are both larger than the area of ​​the third air outlet 133b.

[0066] At least two third vent holes 133b are arranged circumferentially toward the rotation of the movable member 13, that is, the third vent holes 133b can be arranged along the rotational tangent of the movable member 13. Wherein, when the movable member 13 includes a first segment 131 and a second segment 133 as described above, the third vent holes 133b can be provided on both ends of the second segment 133, respectively.

[0067] In this embodiment, by further providing at least two third air outlets 133b arranged circumferentially on the movable member 13, and the blowing directions of the two third air outlets 133b being opposite, a thrust that drives the movable member 13 to rotate can be generated when air is blown through the two third air outlets 133b. At this time, airflow jet drive is directly utilized on the movable member 13, which helps to simplify the structural arrangement of the dust removal device 100. Furthermore, by setting the area of ​​the first air outlet 10b1 and the area of ​​the second air outlet 10c1 to be larger than the area of ​​the third air outlet 133b, the airflow in the air passage 10a will not be excessively lost from the third air outlet 133b, so that the dust removal function can be mainly achieved by blowing air through the first air outlet 10b1 and the second air outlet 10c1.

[0068] Of course, this application is not limited to this. In some embodiments, the dust removal device 100 may also include a drive mechanism, which includes a rotary drive component and a transmission assembly. The transmission assembly is drively connected to the rotary drive component and the movable component 13, so that the rotary drive component drives the movable component 13 to rotate through the transmission assembly. In this case, the rotary drive component can provide rotational driving force, which is transmitted through the transmission assembly, thereby driving the movable component 13 to rotate, so that the airflow in the air passage 10a can be fully used to remove dust from the dust removal surface 201.

[0069] The rotary drive component can be a motor. The transmission assembly can include a first gear and a second gear. The first gear can be connected to the rotary drive component, and the second gear can be sleeved on the first segment 131 of the movable component 13 and mesh with the first gear. Alternatively, the transmission assembly can include a first pulley, a second pulley, and a belt. The first pulley can be connected to the rotary drive component, the second pulley can be sleeved on the first segment 131 of the movable component 13, and the belt can be wound around the first pulley and the second pulley. Therefore, this application does not limit the structural type of the transmission assembly; it can be used to receive the drive from the rotary drive component and drive the movable component 13 to rotate.

[0070] Please refer to the reference. Figures 1 to 3 In one embodiment of this application, the airway 10a includes a first channel 10a1 and a second channel 10a2. The first channel 10a1 is disposed on the fixing member 11, and the air inlet 11a is disposed on the fixing member 11 and communicates with the first channel 10a1. The second channel 10a2 is disposed on the movable member 13 and communicates with the first channel 10a1. The first air outlet 10b1 and the second air outlet 10c1 are connected to the second channel 10a2.

[0071] In this embodiment, the air passage 10a is configured as a first channel 10a1 and a second channel 10a2 distributed between the fixed member 11 and the movable member 13. This allows the air inlet 11a on the fixed member 11 to be connected to the air pump 20 that provides airflow via the air inlet pipe 30, ensuring that the air inlet pipe 30 does not obstruct the rotation of the movable member 13. The centerlines of the ends of the first channel 10a1 and the second channel 10a2 that are connected to each other can coincide with the rotation axis of the movable member 13, so that the connection point between them is not affected by rotation. Furthermore, a sealing ring can be provided at the connection point between the first channel 10a1 and the second channel 10a2 to improve the sealing effect.

[0072] Furthermore, when the movable component 13 includes a first segment 131 and a second segment 133 as described above, the second channel 10a2 may include a first sub-channel 10a21 and a second sub-channel 10a22. The first sub-channel 10a21 may be disposed on the first segment 131 and communicate with the first channel 10a1. The second sub-channel 10a22 may be disposed on the second segment 133 and communicate with the first sub-channel 10a21. The first vent 10b1, the second vent 10c1, and the third vent 133b may be connected to the second sub-channel 10a22. Moreover, in order to ensure the required airflow of the first vent 10b1 and the second vent 10c1, the cross-sectional area of ​​the first sub-channel 10a21 may be larger than the cross-sectional area of ​​the second sub-channel 10a22.

[0073] In one embodiment of this application, the diameters of the first vent 10b1 and the second vent 10c1 are both greater than or equal to 0.1 mm and less than 5 mm.

[0074] In this embodiment, the diameters of the first air outlet 10b1 and the second air outlet 10c1 are both set to 0.1 mm to 5 mm. This ensures that the diameters of the first air outlet 10b1 and the second air outlet 10c1 are neither too small, which would affect the airflow, nor too large, which would cause excessive impact force. This achieves a better balance between the dust removal effect on the electrode assembly 200 and the protection of the structure of the electrode assembly 200 during the air blowing dust removal process.

[0075] To achieve the same effect, please refer to one embodiment of this application. Figure 3 The dust removal device 100 also includes an air pump 20, which is connected to the air duct 10a. The air pump 20 has an airflow output pressure greater than or equal to 0.05 MPa and less than or equal to 0.5 MPa.

[0076] Please refer to the reference. Figure 1 and Figure 2In one embodiment of this application, the dust removal device 100 further includes a cover 40, one end of which is open, and an air blowing mechanism 10 is disposed inside the cover 40. The first air outlet 10b1 and the second air outlet 10c1 in the air blowing mechanism 10 are both arranged facing the opening of the cover 40. The dust removal device 100 includes a suction pipe 50, one end of which is connected to the space inside the cover 40.

[0077] In this embodiment, the cover 40 isolates the space where the blowing mechanism 10 is located, facilitating the installation of a suction pipe 50 to promptly remove dust and other foreign objects from the electrode assembly 200 after it has been blown away. The end of the suction pipe 50 furthest from the space connected to the inside of the cover 40 can be connected to an exhaust fan, allowing the fan to remove airflow and dust from inside the cover 40.

[0078] Alternatively, a blowing mechanism 10 can be provided inside the housing 40, or two or more blowing mechanisms 10 can be provided inside the housing 40, so that at least two electrode assemblies 200 can be blown to remove dust at one time.

[0079] Please refer to Figure 2 In one embodiment of this application, the dust removal device 100 further includes an ion wind generator 60, which is disposed inside the housing 40 and configured to blow ion wind toward the opening of the housing 40.

[0080] In this embodiment, the ion wind generator 60 can blow out ion wind to neutralize electrostatically adsorbed foreign matter, thereby facilitating the blowing mechanism 10 to blow away such foreign matter. The ion wind generator 60 can be an ion bar to reduce space occupation. Of course, the ion generator can also be a fan.

[0081] Alternatively, one ion wind generator 60 can be installed inside the housing 40, or two or more ion wind generators 60 can be installed inside the housing 40. Moreover, the ion wind generators 60 and the air blowing mechanism 10 can be arranged in the second direction Y.

[0082] Please refer to Figure 1 In one embodiment of this application, a solenoid valve 31 may be provided on the air inlet pipe 30 that connects the air inlet 11a and the air pump 20, so that the dust removal device 100 can control the blowing dust removal time of the dust removal surface 201 to be removed according to the preset dust removal time, so as to reduce the possibility of damage to the electrode assembly 200 due to excessive blowing time.

[0083] In one embodiment of this application, the distance between the first air outlet 10b1 and the second air outlet 10c1 in the air blowing mechanism 10 and the surface 201 to be cleaned can be controlled between 1 and 50 mm, so that the airflow can have a suitable flow rate when it blows onto the surface 201 to be cleaned.

[0084] Please refer to the reference. Figures 3 to 6In one embodiment of this application, the dust removal device 100 includes an air blowing mechanism 10, which has an air passage 10a. The air blowing mechanism 10 includes a fixed member 11 and a movable member 13. The movable member 13 is rotatably mounted on the fixed member 11 about an axis parallel to a first direction X. At least a portion of the air passage 10a is located on the movable member 13. The movable member 13 has a first air outlet 10b1 and a second air outlet 10c1 communicating with the air passage 10a. The first air outlet 10b1 and the second air outlet 10c1 are disposed on the side facing the first direction X. The first air outlet 10b1 and the second air outlet 10c1 are arranged offset from the rotation axis of the movable member 13, and the first air outlet 10b1 is closer to the rotation axis of the movable member 13 than the second air outlet 10c1. The airflow force generated by the first air outlet 10b1 is greater than that generated by the second air outlet 10c1. The area of ​​the first air outlet 10b1 is larger than the area of ​​the second air outlet 10c1. There are multiple first vent holes 10b1, configured as at least one first hole group 10b; there are multiple second vent holes 10c1, configured as at least one second hole group 10c; the spacing between the first vent holes 10b1 in the first hole group 10b and the spacing between the second vent holes 10c1 in the second hole group 10c are both less than the minimum spacing between the first hole group 10b and the second hole group 10c. In the first hole group 10b, one first vent hole 10b1 is configured as a first intermediate hole 10b2, and the remaining first vent holes 10b1 are configured as first edge holes 10b3, with multiple first edge holes 10b3 surrounding the first intermediate hole 10b2; in the second hole group 10c, one second vent hole 10c1 is configured as a second intermediate hole 10c2, and the remaining second vent holes 10c1 are configured as second edge holes 10c3, with multiple second edge holes 10c3 surrounding the second intermediate hole 10c2. The movable component 13 has an air outlet surface 133a, on which a first protrusion 1331 and a second protrusion 1333 are protruding; a first intermediate hole 10b2 is provided on the first protrusion 1331, a second intermediate hole 10c2 is provided on the second protrusion 1333, and a first edge hole 10b3 and a second edge hole 10c3 are provided on the air outlet surface 133a. The movable component 13 includes a first segment 131 and a second segment 133. The first segment 131 extends along a first direction X, and one end of the first segment 131 is rotatably mounted on a fixing component 11; the second segment 133 is connected to the end of the first segment 131 away from the fixing component 11 and extends along a second direction Y, which intersects with the first direction X; an air passage 10a is provided on the first segment 131 and the second segment 133; a first hole group 10b and a second hole group 10c are both provided on the second segment 133 and are arranged at intervals along the extension direction of the second segment 133.The movable component 13 is provided with at least two third air outlets 133b, which are connected to the air passage 10a. The at least two third air outlets 133b are arranged circumferentially toward the rotation of the movable component 13, and the blowing directions of the two third air outlets 133b are opposite. The area of ​​the first air outlet 10b1 and the area of ​​the second air outlet 10c1 are both larger than the area of ​​the third air outlet 133b. The air passage 10a includes a first channel 10a1 and a second channel 10a2. The first channel 10a1 is provided on the fixed component 11, and the fixed component 11 is also provided with an air inlet 11a that connects to the first channel 10a1. The second channel 10a2 is provided on the movable component 13 and connects to the first channel 10a1. The first air outlet 10b1 and the second air outlet 10c1 are connected to the second channel 10a2. The second channel 10a2 includes a first sub-channel 10a21 and a second sub-channel 10a22. The first sub-channel 10a21 is located in the first segment 131 of the movable member 13 and is connected to the first channel 10a1. The second sub-channel 10a22 is located in the second segment 133 of the movable member 13 and is connected to the first sub-channel 10a21, the first vent 10b1, the second vent 10c1, and the third vent 133b.

[0085] This application also proposes a dust removal system, which includes a dust removal device 100. The specific structure of the dust removal device 100 is as described in the above embodiments. Since this dust removal system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The number of dust removal devices 100 is at least two, and the at least two dust removal devices 100 are configured as a first dust removal device and a second dust removal device. The first dust removal device is configured to blow air to remove dust from the surface 201 to be dusted formed by the end face 2013 of the electrode assembly 200, and the second dust removal device is configured to blow air to remove dust from the surface 201 to be dusted formed by the side face 2014 of the electrode assembly 200.

[0086] In this embodiment, the first dust removal device and the second dust removal device respectively blow air to remove dust from the end face 2013 and the side face 2014 of the electrode assembly 200. This allows for targeted dust removal of the end face 2013 and the side face 2014 based on their size, shape, or the presence of foreign objects, thereby improving the dust removal effect on the end face 2013 and the side face 2014. Since the dimension of the electrode assembly 200 in its axial direction is typically larger than its diameter, the blowing mechanism 10 in the second dust removal device can be set to have a larger dimension in the second direction Y than the blowing mechanism 10 in the first dust removal device.

[0087] Please refer to Figure 7This application also proposes a control method for a dust removal system. The specific structure of the dust removal system refers to the above embodiment. The control method for the dust removal system includes the following steps:

[0088] S10, in the process before welding the current collector of the electrode assembly 200, the first dust removal device is controlled to blow air to remove dust from the dust-to-be-removed surface 201 formed by the end face 2013 of the electrode assembly 200.

[0089] S20, in the step before the electrode assembly 200 is installed into the housing, the second dust removal device is controlled to blow air to remove dust from the surface 201 to be dusted formed by the side 2014 of the electrode assembly 200.

[0090] In this embodiment, before the electrode assembly 200 is welded to the manifold, the first dust removal device is controlled to blow air to remove dust from the end face 2013 of the electrode assembly 200. This ensures that the end face 2013 is cleaned as close as possible to the welding manifold, reducing the possibility of recontamination during transportation. Furthermore, before the electrode assembly 200 is installed into the housing, the second dust removal device is controlled to blow air to remove dust from the side face 2014 of the electrode assembly 200. This ensures that the side face 2014 is cleaned as close as possible to the installation of the electrode assembly 200 into the housing, further reducing the possibility of recontamination during transportation.

[0091] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A dust removal device, characterized in that, The air blowing mechanism includes an air passage and comprises: Fasteners; and A movable component, which is rotatably disposed on the fixed component about an axis parallel to a first direction, and at least a portion of the air passage is disposed on the movable component, the air passage having an air inlet. The movable component is provided with a first air outlet and a second air outlet that communicate with the air passage, and the first air outlet and the second air outlet are arranged on one side facing the first direction; The first air outlet and the second air outlet are arranged offset from the rotation axis of the movable component, and the first air outlet is closer to the rotation axis of the movable component than the second air outlet. The airflow force generated by the first air outlet is greater than the airflow force generated by the second air outlet. The number of first air outlets is multiple and configured into at least one first hole group; the number of second air outlets is multiple and configured into at least one second hole group. In the first group of holes, one of the first air outlets is configured as a first central hole, and the remaining first air outlets are configured as first edge holes, with a plurality of first edge holes arranged around the first central hole; In the second hole group, one of the second air outlets is configured as a second central hole, and the remaining second air outlets are configured as second edge holes, with a plurality of second edge holes arranged around the second central hole.

2. The dust removal device as described in claim 1, characterized in that, The spacing between each of the first air outlets in the first hole group and the spacing between each of the second air outlets in the second hole group are both less than the minimum spacing between the first hole group and the second hole group.

3. The dust removal device as described in claim 1, characterized in that, The movable component has an air outlet surface, and the air outlet surface is provided with a first protrusion and a second protrusion. The first intermediate hole is located on the first protrusion, the second intermediate hole is located on the second protrusion, and the first edge hole and the second edge hole are located on the air outlet surface.

4. The dust removal device as described in claim 1, characterized in that, The movable component includes: A first segment extends along the first direction, and one end of the first segment is rotatably mounted on the fixing member; and The second segment is connected to the end of the first segment away from the fixing member and extends along a second direction, which intersects with the first direction. At least a portion of the air passage is disposed in the first segment and the second segment, and both the first hole group and the second hole group are disposed in the second segment and are arranged at intervals along the extension direction of the second segment.

5. The dust removal device according to any one of claims 1 to 4, characterized in that, Define the maximum rotational profile diameter formed by the first vent as D1, and the maximum rotational profile diameter formed by the second vent as D2, satisfying the relationship: 0.6≤D1 / D2≤0.7; And / or, the area of ​​the first vent is greater than the area of ​​the second vent.

6. The dust removal device according to any one of claims 1 to 4, characterized in that, The movable component is provided with at least two third air outlets, which are connected to the air passage; the at least two third air outlets are arranged circumferentially toward the rotation of the movable component, and the blowing directions of the two third air outlets are opposite, and the areas of the first air outlet and the second air outlet are both larger than the area of ​​the third air outlet. Alternatively, the dust removal device may further include a drive mechanism, which includes a rotary drive component and a transmission assembly. The transmission assembly is drively connected to the rotary drive component and the movable component, so that the rotary drive component drives the movable component to rotate through the transmission assembly.

7. The dust removal device according to any one of claims 1 to 4, characterized in that, The airway includes: A first channel is provided on the fixing member, and the air inlet is provided on the fixing member and communicates with the first channel; and The second channel is located on the movable part and communicates with the first channel. The first air outlet and the second air outlet are connected to the second channel.

8. The dust removal device according to any one of claims 1 to 4, characterized in that, The diameters of the first vent and the second vent are both greater than or equal to 0.1 mm and less than 5 mm; And / or, the dust removal device further includes an air pump, which is connected to the air inlet, and the air pump has an airflow output pressure greater than or equal to 0.05 MPa and less than or equal to 0.5 MPa.

9. The dust removal device according to any one of claims 1 to 4, characterized in that, The dust removal device also includes a cover, one end of which is open, and the air blowing mechanism is located inside the cover. The first air outlet and the second air outlet in the air blowing mechanism are both oriented toward the opening of the cover. The dust removal device includes a suction pipe, one end of which is connected to the space inside the cover.

10. The dust removal device as described in claim 9, characterized in that, The dust removal device also includes an ion wind generator, which is located inside the housing and configured to blow ion wind toward the opening of the housing.

11. A dust removal system, characterized in that, Includes at least two dust removal devices as described in any one of claims 1 to 10; At least two of the dust removal devices are configured as a first dust removal device and a second dust removal device, wherein the first dust removal device is configured to blow air to remove dust from the surface to be removed formed by the end face of the electrode assembly. The second dust removal device is configured to blow air to remove dust from the surface to be dusted, which is formed by the side of the electrode assembly.

12. A control method for a dust removal system, characterized in that, The dust removal system as described in claim 11, wherein the control method of the dust removal system includes the following steps: In the process preceding the welding manifold of the electrode assembly, the first dust removal device is controlled to blow air to remove dust from the surface to be cleaned formed by the end face of the electrode assembly. In the step before the electrode assembly is installed into the housing, the second dust removal device is controlled to blow air to remove dust from the surface to be dusted formed by the side of the electrode assembly.

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