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

Abstract

The invention discloses a dust removal device, a dust removal system and a control method of the dust removal system. The dust removal device comprises an air blowing mechanism, and the air blowing mechanism is provided with an air channel and comprises a fixed part and a movable part. The movable part is rotatably arranged on the fixed part around a first direction, and at least part of the air channel is arranged on 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 channel, and the first air outlet hole and the second air outlet hole are formed towards one side in the first direction; the plurality of first air outlet holes are configured into at least one first hole group, and the plurality of second air outlet holes are configured into at least one second hole group; in the first hole group, one first air outlet hole is configured to be a first middle hole, the other first air outlet holes are configured to be first edge holes, and a plurality of first edge holes surround the first middle hole; in the second hole set, one second air outlet hole is configured to be a second middle hole, the other second air outlet holes are configured to be second edge holes, and the second edge holes surround the second middle hole. According to the technical scheme, the dedusting effect on the to-be-dedusted part can be improved.

Description

Technical Field

[0001] The present 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 Art

[0002] During transportation or processing, the electrode assemblies in related technologies are prone to being contaminated with dust and other foreign matter, which can affect the normal use of the subsequent battery devices. Therefore, dust removal of the electrode assemblies has become a technical problem that needs to be solved urgently. Summary of the Invention

[0003] The main purpose of this application is to provide a dust removal device, a dust removal system and a control method for the dust removal system, aiming to improve the dust removal effect on the dust removal parts.

[0004] To achieve the above-mentioned purpose, the dust removal device proposed in the present application includes an air blowing mechanism, the air blowing mechanism is provided with an air duct, and the air blowing mechanism includes a fixed part and a movable part; the movable part is arranged on the fixed part and rotates around an axis parallel to the first direction, at least part of the air duct is arranged on the movable part, and the air duct has an air inlet; the movable part is provided with a first air outlet and a second air outlet that are connected to the air duct, and the first air outlet and the second air outlet are arranged to one side in the first direction; the first air outlet and the second air outlet are staggered with the rotation axis of the movable part, and the first air outlet is arranged closer to the rotation axis of the movable part than the second air outlet. , the airflow blowing force formed by the first air outlet is greater than the airflow blowing force formed by the second air outlet; the number of first air outlet holes is multiple, and they are configured into at least one first hole group, and the number of second air outlet holes is multiple, and they are configured into at least one second hole group; in the first hole group, one first air outlet hole is configured as a first middle hole, the remaining first air outlet holes are configured as first edge holes, and the plurality of first edge holes are arranged around the first middle hole; in the second hole group, one second air outlet hole is configured as a second middle hole, the remaining second air outlet holes are configured as second edge holes, and the plurality of second edge holes are arranged around the second middle hole.

[0005] The blowing mechanism in the dust removal device of the technical solution of the present application is configured to include a fixed part and a movable part, and a first air outlet and a second air outlet connected to the air duct are provided on the movable part, so that by driving the movable part to rotate, the blowing mechanism can realize rotary blowing and dust removal on the dust removal surface of the electrode assembly waiting for dust removal. At this time, the airflow blown out by the first air outlet and the second air outlet can be used to sweep and strike dust and other foreign matter on the dust removal surface from multiple directions. Moreover, the first air outlet and the second air outlet are also arranged to be staggered with the rotation axis of the movable part, and the first air outlet is arranged closer to the rotation axis of the movable part than the second air outlet. The airflow blowing force formed by the first air outlet is also greater than the airflow blowing force formed by the second air outlet, so that different blowing forces can be used to blow and dust removal on the middle area and edge area of ​​the dust removal surface of the electrode assembly waiting for dust removal through the first air outlet and the second air outlet. The middle area of ​​the dust removal surface of the electrode assembly is usually the main area where dust and other foreign matter are attached, and its strength is also higher than that of the edge area and is not easily damaged by blowing. At this time, it is possible to carry out highly targeted dust removal on areas where dust and other foreign matter are primarily attached, while also providing reasonable protection for relatively weak and vulnerable areas. That is, the structural arrangement of the dust removal device in this embodiment allows the airflow blown out from the first and second air outlets to sweep and strike dust and other foreign matter on the surface to be removed from multiple directions. This, combined with the use of different blowing forces in the middle and edge areas of the surface to be removed, is conducive to improving the dust removal effect on the electrode assembly awaiting dust removal, while achieving a good balance between the dust removal effect on the dust removal part and the structural protection of the dust removal part. Furthermore, the multiple first air outlets are arranged into at least one first hole group, and the multiple second air outlets are arranged into at least one second hole group, so that the airflow can be concentrated at the first and second hole groups to increase the airflow, achieving better coverage of the dust removal area while increasing the impact force on dust and foreign matter and improving the dust removal effect. Furthermore, the multiple first air outlets in the first hole group are also arranged as a first middle hole and a first edge hole surrounding the first middle hole, which can improve the compactness between the multiple first air outlets and further improve the airflow convergence effect. At the same time, due to its relatively compact design, multiple first air outlet holes can be conveniently arranged within the limited volume of the movable part. Similarly, by arranging the multiple second air outlet holes of the second hole group as a second middle hole and second edge holes surrounding the second middle hole, the compactness between the multiple second air outlet holes can be improved, further enhancing the airflow convergence effect. At the same time, due to its relatively compact design, multiple second air outlet holes can be conveniently arranged within the limited volume of the movable part. Furthermore, this arrangement can also reduce the possibility of interference between the airflows formed by the first and second hole groups. In other words, both dust removal effectiveness and structural convenience are taken into account.

[0006] In some embodiments, the spacing between the first air outlet holes in the first hole group and the spacing between the second air outlet holes in the second hole group are both smaller than the minimum spacing between the first and second hole groups. As a result, the airflows generated by the first and second hole groups are less likely to interfere with each other, further improving the dust removal effect of the dust removal device on the electrode assembly.

[0007] In some embodiments, the movable member has an air outlet surface, on which a first and a second protrusion are convexly formed; 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 orderliness and regularity of the convergent airflow formed by the first and second hole groups, thereby improving the dust removal effect on the surface to be removed.

[0008] In some embodiments, the movable member includes a first segment and a second segment. The first segment extends along a first direction, with one end of the first segment pivotally attached to the fixed member. The second segment is connected to the end of the first segment away from the fixed member and extends along a second direction that intersects the first direction. At least a portion of the air passage is provided in the first and second segments, and the first and second hole groups are both provided in the second segment and spaced apart along the extension direction of the second segment. This reduces the required volume of the movable member and improves the compactness of the blowing mechanism.

[0009] In some embodiments, the maximum rotational profile diameter formed by the first air outlet is defined as D1, and the maximum rotational profile diameter formed by the second air outlet is defined as D2, satisfying the relationship: 0.6 ≤ D1 / D2 ≤ 0.7. Thus, the first air outlet can better adapt to the central area of ​​the corresponding electrode assembly for air blowing and dust removal, thereby facilitating improved dust removal efficiency of the dust removal device for the electrode assembly.

[0010] In some embodiments, the area of ​​the first air outlet is larger than that of the second air outlet, thereby facilitating that the airflow force generated by the first air outlet is greater than the airflow force generated by the second air outlet.

[0011] In some embodiments, the movable member is provided with at least two third air outlets, which are connected to the air duct. The at least two third air outlets are arranged in the circumferential direction of the movable member's rotation, with the two third air outlets blowing air in opposite directions. The area of ​​the first air outlet and the area of ​​the second air outlet are both larger than the area of ​​the third air outlet. This allows direct air jet drive to the movable member, thereby simplifying the structure of the dust removal device.

[0012] In some embodiments, the dust removal device further includes a drive mechanism, the drive mechanism including a rotary drive member and a transmission assembly, the transmission assembly being transmission-connected to the rotary drive member and the movable member, so that the rotary drive member drives the movable member to rotate via the transmission assembly, thereby ensuring that the airflow in the airway can be fully utilized to remove dust from the surface to be dusted.

[0013] In some embodiments, the air passage includes a first channel and a second channel. The first channel is provided on a fixed member, and an air inlet is provided on the fixed member and communicates with the first channel. The second channel is provided on a movable member and communicates with the first channel, and the first and second air outlets are communicated with the second channel. Thus, the air inlet on the fixed member can be connected to an air pump providing airflow via an air inlet pipe, so that the air inlet pipe does not hinder the rotation of the movable member.

[0014] In some embodiments, the diameters of the first and second air outlet holes are both greater than or equal to 0.1 mm and less than 5 mm; and / or the dust removal device further comprises an air pump, the air pump being connected to the air inlet hole, and the air flow output pressure of the air pump being greater than or equal to 0.05 MPa and less than or equal to 0.5 MPa. This can effectively balance the dust removal effect on the electrode assembly with the protection of the electrode assembly structure during the air blowing dust removal process.

[0015] In some embodiments, the dust removal device further comprises a housing, one end of which is open, an air blowing mechanism disposed within the housing, and a first air outlet and a second air outlet of the air blowing mechanism both facing the housing opening; and the dust removal device comprises a dust suction pipe, one end of which is connected to the space inside the housing. Thus, dust and other foreign matter removed from the electrode assembly by blowing can be promptly removed.

[0016] In some embodiments, the dust removal device further includes an ion wind generator, which is disposed within the housing and configured to blow ion wind toward the opening of the housing, thereby neutralizing electrostatically adsorbed foreign matter, thereby facilitating the blowing mechanism to blow such foreign matter away.

[0017] The present application also provides a dust removal system comprising at least two dust removal devices, such as the dust removal device 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 being configured to blow air to remove dust from the surface to be removed formed by the end face of the electrode assembly, and the second dust removal device being configured to blow air to remove dust from the surface to be removed formed by the side face of the electrode assembly. This achieves targeted dust removal on the end face and side face of the electrode assembly, respectively, improving the dust removal effect on the end face and side face.

[0018] The present application also proposes a control method for a dust removal system, such as the dust removal system described above, comprising the following steps: before welding the collector plate to the electrode assembly, controlling a first dust removal device to blow air and remove dust from the surface to be dusted formed by the end face of the electrode assembly; and before installing the electrode assembly into the housing, controlling a second dust removal device to blow air and remove dust from the surface to be dusted formed by the side face of the electrode assembly. This reduces the possibility of re-contamination during transportation after cleaning the end face, and reduces the possibility of re-contamination during transportation after cleaning the side face. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 This is a schematic structural diagram of an embodiment of the dust removal device of the present application; Figure 2 A partial structural diagram of an embodiment of the dust removal device of the present application; Figure 3 Schematic cross-section of an air blowing mechanism in an embodiment of the dust removal device of the present application; Figure 4 This is a schematic structural diagram of the movable parts in one embodiment of the dust removal device of the present application; Figure 5 A schematic diagram showing a perspective of a movable part in an embodiment of a dust removal device of the present application; Figure 6 This is a schematic diagram of a state in which a movable part in one embodiment of the dust removal device of the present application removes dust from the end surface of the electrode assembly; Figure 7 This is a flow chart of an embodiment of a control method for a dust removal system of the present application.

[0021] Description of Figure Numbers: 100. Dust removal device; 10. Air blowing mechanism; 10a. Air duct; 10a1. First channel; 10a2. Second channel; 10a21. First subchannel; 10a22. Second subchannel; 10b. First hole group; 10b1. First air outlet; 10b2. First middle hole; 10b3. First edge hole; 10c. Second hole group; 10c1. Second air outlet; 10c2. Second middle hole; 10c3. Second edge hole; 11. Fixing member; 11a. Inlet Air hole; 13, movable part; 131, first section; 133, second section; 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, ion wind generator; 200, electrode assembly; 201, surface to be dust-removed; 2011, middle area; 2012, edge area; 2013, end face; 2014, side face.

[0022] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0024] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or a solution in which both A and B are satisfied. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0027] Battery devices, that is, devices for storing electrical energy, are not only widely used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but are also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, rail trains and other fields.

[0028] Furthermore, the battery device may include a battery box and a battery cell disposed in the battery box. The battery box may include a box body and a box cover that covers the box body to enclose a cavity for accommodating the battery cell. The battery cell is the smallest unit of a battery for providing electrical energy. The battery cell may be a secondary battery or a primary battery; it may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. In addition, the battery cell may be cylindrical, flat, rectangular, or in other shapes. In addition, a plurality of battery cells may be disposed in the battery box, and the plurality of battery cells may be connected in series, in parallel, or in a mixed connection including series and parallel connections.

[0029] In a cylindrical battery, the battery cell may include a shell, a top cover, an electrode assembly, and a current collecting assembly. The shell may be cylindrical and open at one end. The top cover may cover the opening of the shell to form a closed accommodating cavity with the shell. The electrode assembly may be arranged in the accommodating cavity. The electrode assembly is the component in the battery cell where the electrochemical reaction actually occurs. The electrode assembly may include a positive electrode sheet, a negative electrode sheet, and a diaphragm located therebetween. The positive electrode sheet, the negative electrode sheet, and the diaphragm are wound to form a cylindrical shape that is compatible with the shell. The current collecting assembly may be arranged in the accommodating cavity. The current collecting assembly includes a positive current collecting disc and a negative current collecting disc. The positive current collecting disc may be welded to the positive electrode tab on the positive electrode sheet, and the negative current collecting disc may be welded to the negative electrode tab on the positive electrode sheet.

[0030] Among them, in the manufacturing process of cylindrical batteries, after the electrode assembly is wound and formed, the electrode assembly is generally carried by a support cup to be transported to various processing stations, such as the current collecting plate welding station. However, in order to facilitate the ejection or positioning of the electrode assembly with one end inserted in the support cup, an opening is provided in the middle of the bottom of the support cup. At this time, the support cup and the conveyor line will wear and tear during transportation, generating dust and other foreign matter. The dust and other foreign matter will adhere to the area of ​​the end face of the electrode assembly corresponding to the opening through the opening under the action of electrostatic adsorption. These dust and other foreign matter are low-boiling point impurities. During the welding process, they will evaporate rapidly, provide high recoil power, and cause welding explosion points. Therefore, the end face of the electrode assembly needs to be dusted accordingly.

[0031] In addition, the positive and negative electrodes will be cut during the winding process of the electrode assembly, and the electrode material will fall to the side of the electrode assembly. There is also a risk of metal particles generated during the flattening of the electrode sheets sticking to the side of the electrode assembly. The metal particles may pierce the blue glue and pose a risk of self-discharge and fire. Therefore, the sides of the electrode assembly also need to be dusted accordingly.

[0032] It can be seen that both the end faces and side faces of the electrode assembly need to be dust-removed. Moreover, on the end faces of the electrode assembly, foreign matter such as dust mainly adheres to the area corresponding to the opening on the end face, that is, the middle area of ​​the end face. On the side faces of the electrode assembly, the strength of the pole ears and the insulating film covering the end areas in the axial direction of the side faces is lower than that of the middle area, and they are easily damaged. In this way, consistency cannot be guaranteed on both the end faces and the side faces of the electrode assembly, resulting in the use of wind knives in related technologies to perform synchronous and consistent dust removal on the entire end face area or the entire side area, which will result in the inability to perform strong targeted dust removal on the areas where dust and other foreign matter are mainly attached, thereby affecting the dust removal effect, or the inability to effectively protect the low-strength and vulnerable areas.

[0033] Therefore, based on the above considerations, in order to solve the technical problems in the related art that the dust removal effect of the electrode assembly is poor and the weak and vulnerable areas of the electrode assembly cannot be effectively protected during the dust removal process, the present application proposes a new type of dust removal device, which innovatively sets the blowing mechanism to include a fixed part and a movable part rotatably arranged on the fixed part, and a first air outlet and a second air outlet are provided on the movable part, so that the blowing mechanism can perform rotary air blowing and dust removal on the surface to be dusted in the dust removal part, so as to carry out multi-directional blowing and attack on foreign matter such as dust; at the same time, by setting the airflow blowing force formed by the first air outlet closer to the rotation axis of the movable part to be greater than the airflow blowing force formed by the second air outlet, it is possible to achieve dust removal with a greater blowing force in the middle area of ​​the dust removal surface, thereby achieving highly targeted dust removal in the middle area and edge area of ​​the dust removal surface of the electrode assembly, which is beneficial to improving the dust removal effect and taking into account the structural protection of the electrode assembly.

[0034] In addition, it should be noted that the dust removal device proposed in this application can be used to remove dust from electrode assemblies, and of course, it can also be used to remove dust from other objects. In other words, this application does not limit the specific type of dust removal object to be removed by the dust removal device. For the sake of convenience, the following description uses the use of dust removal from electrode assemblies as an example.

[0035] Please refer to Figures 1 to 4 In one embodiment of the present application, the dust removal device 100 includes an air blowing mechanism 10, which is provided with an air duct 10a. The air blowing mechanism 10 includes a fixed part 11 and a movable part 13; the movable part 13 is rotatable on the fixed part 11 around an axis parallel to the first direction X, and at least a portion of the air duct 10a is provided on the movable part 13; the movable part 13 is provided with a first air outlet 10b1 and a second air outlet 10c1 communicating with the air duct 10a, and the first air outlet 10b1 and the second air outlet 10c1 are arranged on one side in the first direction X; the first air outlet 10b1 and the second air outlet 10c1 are staggered with the rotation axis of the movable part 13, and the first air outlet 10b1 is closer to the rotation axis of the movable part 13 than the second air outlet 10c1, and the airflow blowing force formed by the first air outlet 10b1 is greater than the airflow blowing force formed by the second air outlet 10c1.

[0036] The blowing mechanism 10 can be used to set the air duct 10a, the first air outlet 10b1 and the second air outlet 10c1. The blowing mechanism 10 can be cylindrical, rectangular, or a special shape formed by combining at least two cylindrical shapes. The present application does not limit the shape of the blowing mechanism 10. The air duct 10a can have an air inlet 11a for allowing air to enter and guide it to the first air outlet 10b1 and the second air outlet 10c1. The air duct 10a can be linear, broken line or arc-shaped, etc. The present application does not limit the shape type of the air duct 10a. In addition, the air duct 10a can be set as described below to include a first channel 10a1 and a second channel 10a2, which are respectively set on the fixed part 11 and the movable part 13. Of course, in some embodiments, the air duct 10a can also be entirely set on the movable part 13. At this time, an air intake pipe 30 can be provided through the fixed part 11 to communicate with the air passage 10a, and the center line of the air intake pipe 30 can coincide with the rotation axis of the movable part 13. Alternatively, the air intake pipe 30 can be provided directly at one end of the fixed part 11 to communicate with the air passage 10a.

[0037] The fixing part 11 can be used to provide an installation position so as to rotatably install the movable part 13. The movable part 13 can be used to set the first air outlet 10b1 and the second air outlet 10c1, and the first air outlet 10b1 and the second air outlet 10c1 are both set away from the rotation axis of the movable part 13, and the first air outlet 10b1 is closer to the rotation axis of the movable part 13 than the second air outlet 10c1. Wherein, when the dust removal device 100 is in a normal installation and use state, with the ground as a reference, the first direction X can be a vertical direction. At this time, the first air outlet 10b1 and the second air outlet 10c1 can be located on one side of the rotation axis of the movable part 13 in the horizontal direction, and both are set downward. Moreover, the center line of the first air outlet 10b1 can be set vertically to improve the regularity of the structure and improve the convenience of processing and manufacturing. Of course, the centerline of the first air outlet 10b1 can also be arranged at an angle and gradually move away from the rotation axis of the movable member 13 from top to bottom, so as to blow the airflow at an angle to the dust removal surface 201 and conveniently blow dust and other foreign matter to the outside of the dust removal surface. Similarly, the centerline of the second air outlet 10c1 can also be arranged vertically or at an angle and gradually move away from the rotation axis of the movable member 13 from top to bottom.

[0038] When the dust removal device 100 is used to remove dust from the electrode assembly 200, as shown in FIG. Figure 6As shown, the electrode assembly 200 can be wound into a cylindrical shape by a positive electrode sheet, a negative electrode sheet, and a separator located therebetween. In this case, the surface to be dusted 201 can be the end face 2013 of the electrode assembly 200 in the axial direction thereof, or it can be the side face 2014 of the electrode assembly 200 arranged around its axis. In which, when the surface to be dusted 201 is formed by the end face 2013 of the electrode assembly 200, the edge region 2012 in the surface to be dusted 201 can be arranged around the middle region 2011. Moreover, the area within 2 / 3 of the diameter of the end face 2013 can be used as the middle region 2011, and the area outside 2 / 3 of the diameter of the end face 2013 can be used as the edge region 2012. When the surface to be dusted 201 is formed by the side face 2014 of the electrode assembly 200, the number of edge regions 2012 in the surface to be dusted 201 can be two, and they are distributed on both sides of the middle region 2011 in the axial direction of the electrode assembly 200. Furthermore, an area of ​​1 / 6 to 5 / 6 of the length of the electrode assembly 200 on the axis can serve as the middle area 2011, and an area of ​​1 / 6 of the length at each end of the electrode assembly 200 on the axis can serve as the edge area 2012. At this time, because the distance between the first air outlet 10b1 and the rotation axis of the movable part 13 is smaller than the distance between the second air outlet 10c1 and the rotation axis of the movable part 13, the first air outlet 10b1 is closer to the rotation axis of the movable part 13, and thus the first air outlet 10b1 can be used to blow air toward the middle area 2011 of the surface to be dusted 201 for dust removal; and the second air outlet 10c1 can be used to blow air toward the edge area 2012 of the surface to be dusted 201 for dust removal. The number of first air outlets 10b1 can be one, or two or more. The number of second air outlets 10c1 can be one, or two or more. Furthermore, the airflow force generated by the first air outlet 10b1 is greater than the airflow force generated by the second air outlet 10c1. This means that the impact force generated by the airflow from the first air outlet 10b1 on the dust removal surface 201 is greater than the impact force generated by the airflow from the second air outlet 10c1. In this case, as described below, the area of ​​the first air outlet 10b1 can be set larger than the area of ​​the second air outlet 10c1 to ensure that the airflow force generated by the first air outlet 10b1 is greater than the airflow force generated by the second air outlet 10c1. Alternatively, an airflow having a higher atmospheric pressure or flow rate can be supplied to the first air outlet 10b1 to ensure that the airflow force generated by the first air outlet 10b1 is greater than the airflow force generated by the second air outlet 10c1.

[0039] The blowing mechanism 10 in the dust removal device 100 of the present invention is configured to include a fixed member 11 and a movable member 13. The movable member 13 is provided with a first air outlet 10b1 and a second air outlet 10c1 that communicate with the air passage 10a. By driving the movable member 13 to rotate, the blowing mechanism 10 performs rotary air blowing and dust removal on the dust removal surface 201 of the electrode assembly 200, which is waiting for dust removal. The airflow from the first air outlet 10b1 and the second air outlet 10c1 can sweep dust and other foreign matter from the dust removal surface 201 in a multi-directional manner. Moreover, the first air outlet 10b1 and the second air outlet 10c1 are also arranged to be staggered with respect to the rotation axis of the movable part 13, and the first air outlet 10b1 is arranged closer to the rotation axis of the movable part 13 than the second air outlet 10c1. The airflow blowing force formed by the first air outlet 10b1 is also greater than the airflow blowing force formed by the second air outlet 10c1, so that the first air outlet 10b1 and the second air outlet 10c1 can be used to blow and remove dust using different blowing forces on the middle area 2011 and the edge area 2012 of the dust removal surface 201 of the electrode assembly 200 waiting for dust removal. The middle area 2011 of the dust removal surface 201 of the electrode assembly 200 is usually the main area where dust and other foreign matter are attached, and its strength is also higher than that of the edge area 2012 and is not easily damaged by blowing. At this time, highly targeted dust removal can be carried out on the areas where dust and other foreign matter are mainly attached, and reasonable protection can be carried out on the areas with relatively low strength and vulnerable to damage. That is, the structural setting of the dust removal device 100 in this scheme is to use the airflow blown out through the first air outlet 10b1 and the second air outlet 10c1 to perform multi-directional sweeping and attack on dust and other foreign matter on the dust removal surface 201, and to use different blowing forces for dust removal in the middle area 2011 and the edge area 2012 of the dust removal surface 201, which is beneficial to improving the dust removal effect on the electrode assembly 200 waiting for dust removal, and at the same time achieves a better balance between the dust removal effect on the dust removal part and the structural protection of the dust removal part.

[0040] Please refer to Figures 3 to 5 In one embodiment of the present application, the area of ​​the first air outlet 10b1 is larger than that of the second air outlet 10c1. In this case, the airflow through the first air outlet 10b1 is greater than that through the second air outlet 10c1. When the airflow reaches the dust removal surface 201, it is less likely to dissipate and still maintains a high flow rate, resulting in a greater dust removal impact force, thus generating a greater airflow blowing force.

[0041] 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 air flow source to form the purpose of the air flow blowing force formed by the first air outlet 10b1 being greater than the air flow blowing force formed by the second air outlet 10c1, which is beneficial to simplify the structural setting of the blowing mechanism 10 and improve the convenience of its processing and manufacturing.

[0042] Please refer to Figure 3 In one embodiment of the present application, the maximum rotation profile diameter formed by the first air outlet 10b1 is defined as D1, and the maximum rotation profile diameter formed by the second air outlet 10c1 is defined as D2, satisfying the relationship: 0.6≤D1 / D2≤0.7.

[0043] D1 can be formed by the profile formed by the rotation of the first air outlet 10b1, which is farthest from the rotation axis of the movable member 13, during the rotation of the movable member 13. Similarly, D2 can be formed by the profile formed by the rotation of the second air outlet 10c1, which is farthest from the rotation axis of the movable member 13, during the rotation of the movable member 13.

[0044] In this embodiment, the ratio of D1 and 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 corresponding electrode assembly 200, or the area of ​​1 / 6 to 5 / 6 of the length on the axis of the electrode assembly 200, thereby helping to improve the adaptability of the dust removal device 100 to the partitioned dust removal of the electrode assembly 200, so as to improve the dust removal effect on the electrode assembly 200.

[0045] Please refer to Figures 3 to 5 In one embodiment of the present application, the number of first air outlet holes 10b1 is multiple and is configured into at least one first hole group 10b, and the number of second air outlet holes 10c1 is multiple and is configured into at least one second hole group 10c; the spacing between each first air outlet hole 10b1 in the first hole group 10b, and the spacing between each second air outlet hole 10c1 in the second hole group 10c, are both smaller than the minimum spacing between the first hole group 10b and the second hole group 10c.

[0046] The first air outlet holes 10b1 in the first hole group 10b can be arranged in a circular array or a rectangular array, etc., which is not limited in this application. Similarly, the second air outlet holes 10c1 in the second hole group 10c can be arranged in a circular array or a rectangular array, etc., which is not limited in this application. In addition, when the number of the first hole group 10b and the second hole group 10c is at least two, the spacing between the first air outlet holes 10b1 in the first hole group 10b and the spacing between the second air outlet holes 10c1 in the second hole group 10c are both less than the minimum spacing between the first hole group 10b and the first hole group 10b, and the minimum spacing between the second hole group 10c and the second hole group 10c.

[0047] In this embodiment, multiple first air outlet holes 10b1 are configured into a first hole group 10b, and multiple second air outlet holes 10c1 are configured into a second hole group 10c, so that the air flow rate can be gathered at the first hole group 10b and the second hole group 10c to increase the air flow, thereby achieving better coverage of the dust removal area for air blowing and dust removal, while increasing the impact force on dust and foreign matter; at the same time, the spacing between each first air outlet hole 10b1 and the spacing between each second air outlet hole 10c1 are both smaller than the minimum spacing between the first hole group 10b and the first hole group 10b, and the minimum spacing between the second hole group 10c and the second hole group 10c, and can also make the airflows formed by the first hole group 10b and the second hole group 10c less likely 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.

[0048] Please refer to Figure 5 In one embodiment of the present application, in the first hole group 10b, one first air outlet hole 10b1 is configured as a first middle hole 10b2, the remaining first air outlet holes 10b1 are configured as first edge holes 10b3, and multiple first edge holes 10b3 are arranged around the first middle hole 10b2; in the second hole group 10c, one second air outlet hole 10c1 is configured as a second middle hole 10c2, the remaining second air outlet holes 10c1 are configured as second edge holes 10c3, and multiple second edge holes 10c3 are arranged around the second middle hole 10c2.

[0049] In this embodiment, the multiple first air outlet holes 10b1 of the first hole group 10b are arranged as first middle holes 10b2 and first edge holes 10b3 surrounding the first middle holes 10b2. This improves the compactness of the multiple first air outlet holes 10b1 and enhances the airflow convergence effect. Furthermore, due to the compactness, the multiple first air outlet holes 10b1 can be conveniently arranged within the limited volume of the movable part 13. Similarly, the multiple second air outlet holes 10c1 of the second hole group 10c are arranged as second middle holes 10c2 and second edge holes 10c3 surrounding the second middle holes 10c2. This improves the compactness of the multiple second air outlet holes 10c1 and enhances the airflow convergence effect. Furthermore, due to the compactness, the multiple second air outlet holes 10c1 can be conveniently arranged within the limited volume of the movable part 13. This arrangement also reduces the possibility of interference between the airflows generated by the first hole group 10b and the second hole group 10c.

[0050] Please refer to Figure 5In one embodiment of the present application, the movable part 13 has an air outlet surface 133a, and the air outlet surface 133a is protruded with a first protrusion 1331 and a second protrusion 1333; the first middle hole 10b2 is provided on the first protrusion 1331, the second middle hole 10c2 is provided on the second protrusion 1333, and the first edge hole 10b3 and the second edge hole 10c3 are provided on the air outlet surface 133a.

[0051] When the first direction X is a vertical direction as described above, the air outlet surface 133a can be the lower surface of the movable part 13. In addition, the first boss 1331 and the movable part 13 can be an integrally formed structure to improve the sealing between the two. Of course, the first boss 1331 and the movable part 13 can also be a split structure, which can then be connected by welding, bonding, or screws. Similarly, the second boss 1333 and the movable part 13 can also be an integrally formed structure to improve the sealing between the two. Of course, the second boss 1333 and the movable part 13 can also be a split structure, which can then be connected by welding, bonding, or screws.

[0052] In this embodiment, the first middle hole 10b2 and the second middle hole 10c2 are respectively arranged on the first convex column 1331 and the second convex column 1333, so that the first hole group 10b can form an airflow mainly with the first middle hole 10b2, and the second hole group 10c can form an airflow mainly with the first middle hole 10b2, thereby improving the order and regularity of the convergent airflow formed by the first hole group 10b and the second hole group 10c, thereby improving the dust removal effect on the dust removal surface 201.

[0053] In addition, it should be noted that the present application is not limited to this. In some embodiments, the first middle hole 10b2, the second middle hole 10c2, the first edge hole 10b3, and the second edge hole 10c3 may all be provided on the air outlet surface 133a. Alternatively, the first middle hole 10b2 and the first edge hole 10b3 may all be provided on the first convex column 1331, and the second middle hole 10c2 and the second edge hole 10c3 may all be provided on the second convex column 1333.

[0054] Please refer to Figures 3 to 5 In one embodiment of the present 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 fixed member 11. The second segment 133 is connected to an end of the first segment 131 away from the fixed member 11 and extends along a second direction Y, which intersects 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.

[0055] When the first direction X is a vertical direction as described above, the second direction Y can be a horizontal direction. Therefore, the first segment 131 can be arranged vertically, and the upper end can be rotatably connected to the fixing member 11. The second segment 133 can be arranged horizontally, and part of it can be located on one side of the first segment 131 in the horizontal direction, and the other part can be located on the other side of the first segment 131 in the horizontal direction. 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 located entirely 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. In addition, the air outlet surface 133a described above can be set on the second segment 133.

[0056] In this embodiment, the movable member 13 is configured to include an intersecting first segment 131 and a second segment 133. The first hole group 10b and the second hole group 10c are arranged along the extension direction of the second segment 133. This facilitates rotational connection with the fixed member 11 through the first segment 131, while the first hole group 10b and the second hole group 10c are conveniently arranged through the second segment 133. This reduces the required volume of the movable member 13 and improves the compactness of the blowing mechanism 10.

[0057] Of course, the present application is not limited thereto, and in other embodiments, the movable member 13 may also include only the first segment 131 . In this case, the first hole group 10 b and the second hole group 10 c may both be provided on the lower surface of the first segment 131 .

[0058] Please refer to Figure 4 and Figure 5 In one embodiment of the present application, the movable part 13 is provided with at least two third air outlet holes 133b, and the third air outlet holes 133b are connected to the air duct 10a; at least two third air outlet holes 133b are arranged toward the rotational circumference of the movable part 13, and the blowing directions of the two third air outlet holes 133b are opposite, and the area of ​​the first air outlet hole 10b1 and the area of ​​the second air outlet hole 10c1 are both larger than the area of ​​the third air outlet hole 133b.

[0059] At least two third air outlet holes 133b are arranged in the rotational direction of the movable member 13, that is, the third air outlet holes 133b can be arranged along the rotational tangent direction of the movable member 13. When the movable member 13 includes the first segment 131 and the second segment 133 as described above, the third air outlet holes 133b can be arranged on both ends of the second segment 133 of the first segment 131.

[0060] In this embodiment, by further providing at least two third air outlets 133b on the movable member 13, oriented in the direction of rotation, with the two third air outlets 133b blowing in opposite directions, air blowing through the two third air outlets 133b can generate a thrust that drives the movable member 13 to rotate. In this case, air jet drive is directly utilized on the movable member 13, thereby simplifying the structural configuration of the dust removal device 100. Furthermore, by setting the area of ​​both the first air outlet 10b1 and the second air outlet 10c1 larger than the area of ​​the third air outlet 133b, the airflow within the air duct 10a is prevented from excessively draining through the third air outlet 133b, allowing air to be blown primarily through the first and second air outlets 10b1, 10c1, to achieve a dust removal effect.

[0061] Of course, the present application is not limited thereto. In some embodiments, the dust removal device 100 may further include a driving mechanism, the driving mechanism including a rotary driving member and a transmission assembly, the transmission assembly being transmission-connected between the rotary driving member and the movable member 13 so that the rotary driving member drives the movable member 13 to rotate via the transmission assembly. In this case, the rotary driving member can provide a rotational driving force, which is transmitted via the transmission assembly, thereby driving the movable member 13 to rotate, thereby achieving that the airflow in the air duct 10a can be fully used to remove dust from the surface 201 to be removed.

[0062] The rotating drive member may be a motor. The transmission assembly may include a first gear and a second gear, wherein the first gear may be connected to the rotating drive member, and the second gear may be sleeved on the first section 131 of the movable member 13 and meshed with the first gear. Alternatively, the transmission assembly may include a first pulley, a second pulley and a belt, wherein the first pulley may be connected to the rotating drive member, the second pulley may be sleeved on the first section 131 of the movable member 13, and the belt may be wound around the first pulley and the second pulley. It can be seen that the present application does not limit the structural type of the transmission assembly, and it can be used to receive the drive of the rotating drive member and drive the movable member 13 to rotate.

[0063] Please refer to Figures 1 to 3 In one embodiment of the present application, the air channel 10a includes a first channel 10a1 and a second channel 10a2. The first channel 10a1 is provided on the fixed part 11, and the air inlet 11a is provided on the fixed part 11 and communicates with the first channel 10a1; the second channel 10a2 is provided on the movable part 13 and communicates with the first channel 10a1, and the first air outlet 10b1 and the second air outlet 10c1 are communicated with the second channel 10a2.

[0064] 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 hole 11a provided on the fixed member 11 to be connected to the air pump 20 providing the airflow through the air inlet pipe 30, thereby preventing the air inlet pipe 30 from obstructing the rotation of the movable member 13. The centerlines of the opposing ends of the first channel 10a1 and the second channel 10a2 can both coincide with the rotation axis of the movable member 13, thereby preventing the connection between the two from being affected by rotation. Furthermore, a sealing ring can be provided at the connection between the first channel 10a1 and the second channel 10a2 to enhance the sealing effect.

[0065] Furthermore, when the movable member 13 includes the first segment 131 and the second segment 133 as described above, the second channel 10a2 can include a first sub-channel 10a21 and a second sub-channel 10a22. The first sub-channel 10a21 can be disposed on the first segment 131 and communicate with the first channel 10a1. The second sub-channel 10a22 can be disposed on the second segment 133 and communicate with the first sub-channel 10a21. The first air outlet 10b1, the second air outlet 10c1, and the third air outlet 133b can communicate with the second sub-channel 10a22. Furthermore, to ensure the required airflow for the first air outlet 10b1 and the second air outlet 10c1, the cross-sectional area of ​​the first sub-channel 10a21 can be larger than the cross-sectional area of ​​the second sub-channel 10a22.

[0066] In one embodiment of the present application, the diameters of the first air outlet 10b1 and the second air outlet 10c1 are both greater than or equal to 0.1 mm and less than 5 mm.

[0067] 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, so that the diameters of the first air outlet 10b1 and the second air outlet 10c1 will not affect the air flow due to being too small, nor will they cause excessive impact force due to being too large, so as to better balance the dust removal effect on the electrode assembly 200 and the protection of the structure of the electrode assembly 200 during the air blowing and dust removal process.

[0068] In order to achieve the same effect, in one embodiment of the present application, please refer to Figure 3 The dust removal device 100 also includes an air pump 20, which is connected to the air duct 10a. The air flow output pressure of the air pump 20 is greater than or equal to 0.05 MPa and less than or equal to 0.5 MPa.

[0069] Please refer to Figure 1 and Figure 2In one embodiment of the present application, the dust removal device 100 also includes a cover shell 40, one end of which is open, and the blowing mechanism 10 is arranged in the cover shell 40, and the first air outlet 10b1 and the second air outlet 10c1 in the blowing mechanism 10 are both arranged toward the opening of the cover shell 40; the dust removal device 100 includes a dust suction pipe 50, one end of which is connected to the space inside the cover shell 40.

[0070] In this embodiment, the housing 40 can be provided to isolate the space where the blowing mechanism 10 is located, facilitating the provision of a dust collection tube 50 to promptly remove dust and other foreign matter after the electrode assembly 200 is blown away. The end of the dust collection tube 50, which is remote from the space connected to the inside of the housing 40, can be connected to an exhaust fan, so that the exhaust fan can remove airflow and foreign matter such as dust inside the housing 40.

[0071] In addition, one blowing mechanism 10 may be provided in the cover shell 40 , and of course two or more blowing mechanisms 10 may be provided in the cover shell 40 , so that at least two electrode assemblies 200 can be blown and dusted at one time.

[0072] Please refer to Figure 2 In one embodiment of the present application, the dust removal device 100 further includes an ion wind generator 60 , which is disposed in the housing 40 and configured to blow ion wind toward an opening of the housing 40 .

[0073] In this embodiment, the ion wind generator 60 can blow out ionized air 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 rod to reduce space usage. Of course, the ion generator can also be a fan.

[0074] In addition, one ion wind generator 60 may be provided in the housing 40, or two or more ion wind generators 60 may be provided in the housing 40. Moreover, the ion wind generator 60 and the blowing mechanism 10 may be arranged in the second direction Y.

[0075] Please refer to Figure 1 In one embodiment of the present application, a solenoid valve 31 can also be provided on the air inlet pipe 30 connecting the air inlet hole 11a and the air pump 20, so that the dust removal device 100 can control the blowing and dust removal time of the dust removal surface 201 according to the preset dust removal time, so as to reduce the possibility of damage to the electrode assembly 200 due to excessively long blowing time.

[0076] In one embodiment of the present application, the distance between the first air outlet 10b1 and the second air outlet 10c1 in the blowing mechanism 10 and the surface to be dusted 201 can be controlled to be 1 to 50 mm so that the air flow can still have a suitable flow rate when blowing to the surface to be dusted 201.

[0077] Please refer to Figures 3 to 6In one embodiment of the present application, a dust removal device 100 includes an air blowing mechanism 10, which is provided with 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, and at least a portion of the air passage 10a is disposed on the movable member 13. The movable member 13 is provided with 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 toward one side in the first direction X. The first air outlet 10b1 and the second air outlet 10c1 are staggered relative to the rotation axis of the movable member 13. The first air outlet 10b1 is positioned closer to the rotation axis of the movable member 13 than the second air outlet 10c1. The airflow generated by the first air outlet 10b1 has a greater blowing force than the second air outlet 10c1. The area of ​​the first air outlet 10b1 is larger than that of the second air outlet 10c1. There are multiple first air outlet holes 10b1, arranged into at least one first hole group 10b. There are multiple second air outlet holes 10c1, arranged into at least one second hole group 10c. The spacing between the first air outlet holes 10b1 in the first hole group 10b, and the spacing between the second air outlet holes 10c1 in the second hole group 10c, are both smaller than the minimum spacing between the first hole group 10b and the second hole group 10c. In the first hole group 10b, one first air outlet hole 10b1 is configured as a first middle hole 10b2, while the remaining first air outlet holes 10b1 are configured as first edge holes 10b3, with the plurality of first edge holes 10b3 surrounding the first middle hole 10b2. In the second hole group 10c, one second air outlet hole 10c1 is configured as a second middle hole 10c2, while the remaining second air outlet holes 10c1 are configured as second edge holes 10c3, with the plurality of second edge holes 10c3 surrounding the second middle hole 10c2. The movable member 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 in the first protrusion 1331, a second intermediate hole 10c2 is provided in the second protrusion 1333, and a first edge hole 10b3 and a second edge hole 10c3 are provided in the air outlet surface 133a. The movable member 13 includes a first segment 131 and a second segment 133. The first segment 131 extends along a first direction X, with one end of the first segment 131 pivotally attached to the fixed member 11. The second segment 133 is connected to an end of the first segment 131 away from the fixed member 11 and extends along a second direction Y, which intersects the first direction X. The air passage 10a is provided in the first segment 131 and the second segment 133. The first hole group 10b and the second hole group 10c are both provided in the second segment 133 and are arranged at intervals along the extension direction of the second segment 133.The movable part 13 is provided with at least two third air outlet holes 133b, and the third air outlet holes 133b are connected to the air duct 10a; at least two third air outlet holes 133b are arranged toward the rotational circumference of the movable part 13, and the blowing directions of the two third air outlet holes 133b are opposite, and the area of ​​the first air outlet hole 10b1 and the area of ​​the second air outlet hole 10c1 are both larger than the area of ​​the third air outlet holes 133b; the air duct 10a includes a first channel 10a1 and a second channel 10a2, the first channel 10a1 is provided on the fixed part 11, and the fixed part 11 is further provided with an air inlet hole 11a connected to the first channel 10a1; the second channel 10a2 is provided on the movable part 13 and is connected to the first channel 10a1, and the first air outlet hole 10b1 and the second air outlet hole 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 provided in the first section 131 of the movable part 13 and is connected to the first channel 10a1; the second sub-channel 10a22 is provided in the second section 133 of the movable part 13 and is connected to the first sub-channel 10a21, the first air outlet 10b1, the second air outlet 10c1 and the third air outlet 133b.

[0078] The present application also proposes a dust removal system, which includes a dust removal device 100. The specific structure of the dust removal device 100 refers to the above-mentioned embodiment. Since the present dust removal system adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here. Among them, 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 to be dusted 201 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 to be dusted 201 formed by the side face 2014 of the electrode assembly 200.

[0079] In this embodiment, the first dust removal device and the second dust removal device are used to blow air and remove dust from the end surface 2013 and the side surface 2014 of the electrode assembly 200, respectively. This allows for targeted dust removal on the end surface 2013 and the side surface 2014 of the electrode assembly 200 based on differences in size, shape, or foreign matter on the end surface 2013 and the side surface 2014, thereby improving the dust removal effect on the end surface 2013 and the side surface 2014. Since the size of the electrode assembly 200 in the axial direction is generally larger than the diameter of the electrode assembly 200, the size of the blowing mechanism 10 in the second dust removal device in the second direction Y can be set to be larger than the size of the blowing mechanism 10 in the first dust removal device.

[0080] Please refer to Figure 7The present application also proposes a control method for a dust removal system. The specific structure of the dust removal system refers to the above implementation. The control method for the dust removal system includes the following steps: S10, before welding the collector plate to the electrode assembly 200, controlling the first dust removal device to blow air and remove dust from the dust removal surface 201 formed by the end surface 2013 of the electrode assembly 200; S20 , before the electrode assembly 200 is installed in the housing, the second dust removal device is controlled to blow air to remove dust from the surface 201 to be removed formed by the side surface 2014 of the electrode assembly 200 .

[0081] In this embodiment, before the electrode assembly 200 is welded to the collector plate, the first dust removal device is controlled to blow air to remove dust from the end surface 2013 of the electrode assembly 200. This allows the end surface 2013 to be cleaned as close to the collector plate as possible, thereby reducing the possibility of re-contamination during transportation after the end surface 2013 is cleaned. Furthermore, before the electrode assembly 200 is installed in the housing, the second dust removal device is controlled to blow air to remove dust from the side surface 2014 of the electrode assembly 200. This allows the side surface 2014 to be cleaned as close to the time the electrode assembly 200 is installed in the housing, thereby reducing the possibility of re-contamination during transportation after the side surface 2014 is cleaned.

[0082] The above description is only a preferred embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made by using the contents of the present application description and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A dust removal device, characterized in that: The air blowing mechanism includes an air duct, and the air blowing mechanism includes: fixings; and a movable member, the movable member being rotatable about an axis parallel to the first direction and being disposed on the fixed member, at least a portion of the air passage being disposed on the movable member, the air passage having an air inlet hole; The movable member is provided with a first air outlet and a second air outlet communicating with the air passage, and the first air outlet and the second air outlet are arranged on one side in the first direction; The first air outlet and the second air outlet are staggered with respect to the rotation axis of the movable member, and the first air outlet is arranged closer to the rotation axis of the movable member than the second air outlet, and the airflow force generated by the first air outlet is greater than the airflow force generated by the second air outlet; There are a plurality of first air outlet holes, which are arranged into at least one first hole group; there are a plurality of second air outlet holes, which are arranged into at least one second hole group; In the first hole group, one of the first air outlet holes is configured as a first middle hole, and the other first air outlet holes are configured as first edge holes, and a plurality of the first edge holes are arranged around the first middle hole; In the second hole group, one of the second air outlet holes is configured as a second middle hole, and the other second air outlet holes are configured as second edge holes. A plurality of the second edge holes are arranged around the second middle hole.

2. The dust removal device according to claim 1, characterized in that: The spacing between the first air outlet holes in the first hole group and the spacing between the second air outlet holes in the second hole group are both smaller than the minimum spacing between the first hole group and the second hole group.

3. The dust removal device according to claim 1, wherein: The movable part has an air outlet surface, and the air outlet surface is convexly provided with a first convex column and a second convex column; The first middle hole is provided on the first convex column, the second middle hole is provided on the second convex column, and the first edge hole and the second edge hole are provided on the air outlet surface.

4. The dust removal device according to claim 1, wherein: The movable parts include: a first segment, the first segment extending along the first direction, one end of the first segment being rotatably mounted on the fixing member; and a second segment connected to an end of the first segment away from the fixing member and extending along a second direction intersecting the first direction; At least part of the air channel is provided in the first segment and the second segment, and the first hole group and the second hole group are both provided 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: The maximum rotation profile diameter formed by the first air outlet is defined as D1, and the maximum rotation profile diameter formed by the second air outlet is defined as D2, satisfying the relationship: 0.6≤D1 / D2≤0.7; And / or, the area of ​​the first air outlet is larger than the area of ​​the second air outlet.

6. The dust removal device according to any one of claims 1 to 4, characterized in that: The movable member is provided with at least two third air outlets, the third air outlets being connected to the air passage; the at least two third air outlets are arranged in the rotational direction of the movable member, the blowing directions of the two third air outlets being 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 further includes a driving mechanism, which includes a rotating driving member and a transmission assembly, and the transmission assembly is transmission-connected to the rotating driving member and the movable member so that the rotating driving member drives the movable member 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 comprises: a first channel, the first channel being provided on the fixing member, the air inlet being provided on the fixing member and communicating with the first channel; and The second channel is provided on the movable member and is communicated with the first channel. The first air outlet and the second air outlet are communicated with 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 air outlet and the second air outlet 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, the air pump is connected to the air inlet, and the airflow output pressure of the air pump is 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 further includes a housing, one end of which is open, the air blowing mechanism is disposed in the housing, and the first air outlet and the second air outlet in the air blowing mechanism are both disposed toward the opening of the housing; The dust removal device includes a dust suction pipe, one end of which is connected to the space inside the housing.

10. The dust removal device according to claim 9, characterized in that: The dust removal device further includes an ion wind generator, which is disposed in the housing and configured to blow ion wind toward an opening of the housing.

11. A dust removal system, characterized in that: comprising at least two dust removal devices according to 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 perform air blowing and dust removal on a surface to be dusted formed by an end surface of the electrode assembly; The second dust removal device is configured to perform air blowing and dust removal on the dust removal surface formed by the side surface of the electrode assembly.

12. A method for controlling a dust removal system, characterized in that: Using the dust removal system according to claim 11, the control method of the dust removal system includes the following steps: In a process before welding the collector plate to the electrode assembly, controlling the first dust removal device to blow air and remove dust from the surface to be removed formed by the end surface of the electrode assembly; In a process before the electrode assembly is installed in the shell, the second dust removal device is controlled to blow air to remove dust from the surface to be removed formed by the side surface of the electrode assembly.

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