Dust removal device and battery production system

Abstract

The present application provides a dust removal device and a battery production system. The dust removal device comprises dust removal assemblies and a first driving assembly. Each dust removal assembly comprises a dust removal brush, and the first driving assembly is connected to the dust removal brush and is configured to be capable of driving the dust removal brush to move in a first direction. In this way, the dust removal brush can clean weld spatters while moving, allowing for a large area of removal of weld spatters on hollow poles of battery cell preforms; and furthermore, the dust removal brush can achieve cleaning of strip-shaped weld marks, improving the cleaning effect of the dust removal device.

Description

Dust removal device and battery production system

[0001] [Cross-reference to related applications]

[0002] This application claims priority based on Chinese patent application No. 202323280379X filed on November 30, 2023, and all of its contents are incorporated herein by reference.

Technical field

[0003] The present application relates to the field of batteries, and in particular to a dust removal device and a battery production system. [Background Technology]

[0004] Welding is a crucial step in battery production, and processes like laser welding generate large amounts of slag and other substances. Due to its small size, slag can easily contaminate production equipment, impacting its performance and lifespan. Therefore, cleaning slag after welding is a pressing technical challenge.

[0005] [Summary of the invention]

[0006] The main technical problem solved by this application is to provide a dust removal device and a battery production system that can efficiently clean welding slag generated by welding.

[0007] In order to solve the above technical problems, on the first aspect, a technical solution adopted in this application is to provide a dust removal device, which includes a dust removal component, a first drive component and a dust cover, wherein the dust removal component includes a dust removal brush, the first drive component is connected to the dust removal brush, and is configured to drive the dust removal brush to move along a first direction; the dust removal brush is arranged in the dust removal cover and is configured to be able to move back and forth in the dust removal cover along the first direction; the port of the dust removal cover includes two long sides arranged opposite to each other and two short sides arranged opposite to each other, the long sides extend along the first direction, and the short sides are respectively connected to the two long sides.

[0008] In the above technical solution, a dust removal device is provided including a dust removal component and a first drive component, the dust removal component includes a dust removal brush, and the first drive component is configured to drive the dust removal brush to move along a first direction, so that the dust removal brush can move while cleaning the welding slag, thereby clearing the welding slag on the hollow pole of the battery cell preform over a larger area; further, the dust removal brush can clean the strip-shaped weld mark, thereby improving the cleaning effect of the dust removal device; the dust removal device is provided to also include a dust removal cover, and the port of the dust removal cover includes two long sides extending along the first direction and two short sides respectively connecting the two long sides, so that the shape of the port of the dust removal cover matches the shape of the hollow pole of the battery cell preform, so that the dust removal cover can just cover the hollow pole of the battery cell preform, and neither of them will fall off easily, and the hollow pole of the battery cell preform will not be exposed.

[0009] In order to solve the above technical problems, in the second aspect, another technical solution adopted in this application is to provide a dust removal device, which includes a dust removal component, a first drive component and a dust cover, wherein the dust removal component includes a dust removal brush, the first drive component is connected to the dust removal brush, and is configured to drive the dust removal brush to move along a first direction; the dust removal brush is arranged in the dust removal cover and is configured to be able to move back and forth in the dust removal cover along the first direction; the dust removal component further includes a plug, which is arranged in the dust removal cover.

[0010] In the above technical solution, by providing a dust removal hood and restricting the dust removal brush inside the dust removal hood, the hollow pole of the battery cell preform can be isolated from the outside world, reducing the risk of splashing or scattering of welding slag to other parts or the environment during the cleaning process of the dust removal component, thereby reducing pollution; and the dust removal hood also limits the moving range of the dust removal brush, which can reduce the contact between the dust removal brush and other parts, thereby reducing the scattering of welding slag on the dust removal brush; by providing a plug inside the dust removal hood, the plug can be pressed onto the inside of the hollow pole of the battery cell preform, blocking the gap of the opening at the bottom of the hollow pole of the battery cell preform, which can reduce the risk of welding slag entering the interior of the battery cell preform through the gap of the opening at the bottom of the hollow pole.

[0011] In some embodiments, a side wall of the dust hood has an air inlet.

[0012] In the above technical solution, by arranging an air inlet on the side wall of the dust hood, external air can enter the dust hood, and then the welding slag swept off by the dust brush can flow with the gas, so as to achieve the purpose of cleaning the welding slag.

[0013] In some embodiments, a flexible protective cover is provided on the port of the dust cover.

[0014] In the above technical solution, by providing a flexible protective cover at the port of the dust hood, on the one hand, the port of the dust hood can be protected, and on the other hand, the damage of the port of the dust hood to the hollow pole or other components of the battery cell preform can be reduced during the process of aligning and installing the dust hood to the battery cell preform.

[0015] In some embodiments, the port of the dust cover includes two long sides and two short sides that are opposite to each other, the long sides extend along the first direction, and the short sides are respectively connected to the two long sides.

[0016] In the above technical solution, the port of the dust hood is provided with two long sides extending along the first direction and two short sides respectively connecting the two long sides, so that the shape of the port of the dust hood matches the shape of the hollow pole of the battery cell preform, so that the dust hood can just cover the hollow pole of the battery cell preform, and neither of them will fall off easily, and there will be no situation where the hollow pole of the battery cell preform is exposed.

[0017] In some embodiments, one end of the plug extends out of the port of the dust cover.

[0018] In the above technical solution, the port of the dust cover is extended from one end of the plug, which can be easily inserted into the gap of the opening at the bottom of the hollow pole and pass through the gap, reducing the risk of welding slag entering the interior of the battery cell prefabricated part and causing contamination.

[0019] In some embodiments, the plug is spaced apart from the inner wall of the dust cover and extends along the first direction, and the dust removal brush is located at the bottom of the plug.

[0020] In the above technical solution, by setting the plug at a distance from the inner wall surface of the dust cover and extending along the first direction, and the dust brush being located at the bottom of the plug, the plug can block the gap, and the dust brush can clean the welding slag around the tab, further reducing the risk of welding slag falling, and will not hinder the movement of the dust brush along the first direction.

[0021] In some embodiments, the surface of the plug close to the dust removal brush is a plane, and the dust removal brush is cylindrical and is tangent to or spaced apart from the plane.

[0022] In the above technical solution, by setting the dust removal brush to be cylindrical, the resistance between the dust removal brush and the air can be minimized when the dust removal brush moves, and since there are no sharp corners, it is easier to clean corners; in addition, by making the surface of the plug close to the dust removal brush flat and tangent to or spaced apart from the dust removal brush, the dust removal brush can be translated along the extension direction of the plane of the plug, and the plug will not hinder the translation of the dust removal brush while ensuring that the gap of the opening at the bottom of the hollow pole is sealed.

[0023] In some embodiments, the plug is made of rubber or silicone.

[0024] In the above technical solution, by setting the material of the plug to include rubber or silicone, the plug can be made elastic, thereby reducing the damage to the hollow pole during the process of inserting the plug into the gap of the opening at the bottom of the hollow pole, and improving the sealing performance of the gap.

[0025] In some embodiments, the dust removal device further includes a vibration assembly, which is connected to the dust removal brush and configured to vibrate the dust removal brush; the first drive assembly is also connected to the vibration assembly and configured to drive the dust removal brush and the vibration assembly to move together in a first direction.

[0026] In the above technical solution, by setting up a dust removal device including a vibration component, high-frequency vibration can be used to make the detachable welding slag and the adsorbed welding slag at the weld mark being cleaned fall off, and the dust removal brush can be made to vibrate and move during the process of cleaning the welding slag, thereby improving the cleaning efficiency and cleaning effect.

[0027] To solve the above-mentioned technical problems, in the third aspect, another technical solution adopted in this application is to provide a dust removal device, which includes a dust removal component and a first drive component, and the dust removal component includes a dust removal brush; the first drive component is connected to the dust removal brush and is configured to drive the dust removal brush to move along a first direction; the dust removal device further includes a vibration component, which is connected to the dust removal brush and is configured to vibrate the dust removal brush; the first drive component is also connected to the vibration component and is configured to drive the dust removal brush and the vibration component to move together along the first direction.

[0028] In the above technical solution, by setting up a dust removal device including a vibration component, high-frequency vibration can be used to make the detachable welding slag and the adsorbed welding slag at the weld mark being cleaned fall off, and the dust removal brush can be made to vibrate and move during the process of cleaning the welding slag, thereby improving the cleaning efficiency and cleaning effect.

[0029] In some embodiments, the dust removal assembly further includes a dust removal cover, the dust removal brush is arranged in the dust removal cover and is configured to move back and forth along the first direction in the dust removal cover; the vibration assembly includes a vibration motor and a mounting shaft, the vibration motor is arranged outside the dust removal cover, one end of the mounting shaft is installed on the vibration motor, and the other end extends into the dust removal cover and is connected to the dust removal brush.

[0030] In the above technical solution, by setting up a dust removal hood and confining the dust removal brush inside the dust removal hood, the hollow pole of the battery cell preform can be isolated from the outside world, reducing the risk of splashing or scattering of welding slag to other parts or the environment during the cleaning process of the dust removal component, thereby reducing pollution; and the dust removal hood also limits the moving range of the dust removal brush, which can reduce the contact between the dust removal brush and other parts, thereby reducing the scattering of welding slag on the dust removal brush; the vibration of the dust removal brush is achieved by setting up a vibration component including a vibration motor and a mounting shaft. The device is simple, easy to install, and easy to implement.

[0031] In some embodiments, the dust removal device further includes an exhaust assembly and an installation cavity; the exhaust assembly is connected to the installation cavity, the end of the dust cover away from the port is connected to the installation cavity, the side wall of the installation cavity away from the dust cover has a through hole, the installation shaft extends through the through hole into the dust cover, and the through hole extends along the first direction.

[0032] In the above technical solution, the exhaust assembly can exhaust air while the dust brush is lightly sweeping the welding slag, so as to form a negative pressure in the installation cavity and the dust hood, thereby allowing the loosened welding slag to enter the exhaust assembly; the installation cavity is connected between the dust hood and the exhaust assembly, and can provide a buffer space to reduce the risk of damage to the dust brush and / or battery cell preform in the dust hood caused by excessive negative pressure; the side wall of the installation cavity at one end facing away from the dust hood has a through hole, and the through hole allows the installation shaft to pass through, so that it can move in the first direction and drive the dust brush to move along the first direction.

[0033] In some embodiments, the mounting cavity has an air outlet connected to the air extraction assembly; along the first direction, the air outlet and the air inlet of the dust cover are located on opposite sides of the dust cover and the mounting cavity.

[0034] In the above technical solution, by arranging an air outlet in the installation cavity, the gas in the dust hood and the installation cavity can be extracted through the exhaust component; further combined with arranging an air inlet in the dust hood, the air in the environment can continuously enter the dust hood and the installation cavity for ventilation during the dust removal process, so that the air flow can continuously carry away the welding slag, and can reduce the risk of damage to the battery cell preform caused by excessive negative pressure in the dust hood due to excessive air extraction by the exhaust component during the dust removal process; along the first direction, the air outlet and the air inlet of the dust hood are located on opposite sides of the dust hood and the installation cavity, that is, on opposite sides of the dust brush, so that the gas flows from one side of the dust brush to the other, making it easier to carry away the welding slag of the dust brush.

[0035] In some embodiments, the side wall of the installation cavity facing away from the dust cover has two flexible shielding members; along a third direction perpendicular to the first direction, the two flexible shielding members are respectively arranged on opposite sides of the through hole and spliced ​​together to block the through hole.

[0036] In the above technical solution, two flexible shielding members are provided on the side wall of the installation cavity facing away from the dust cover, and the two flexible shielding members are spliced ​​together to block the through-hole, so that when the installation shaft moves along the first direction in the through-hole, the through-hole can be covered by the two flexible shielding members, thereby reducing the risk of airflow entering the installation cavity from the through-hole, and allowing the airflow to enter the installation cavity from the air inlet as much as possible, which is conducive to taking away the welding slag of the dust removal brush.

[0037] In some embodiments, the flexible shielding member is a brush.

[0038] In the above technical solution, by setting the flexible shielding member as a brush, the welding slag on the installation shaft passing through the penetration hole can be further cleaned or adsorbed, thereby reducing the welding slag adsorbed on the installation shaft and reducing the risk of welding slag splashing into the interior of the battery cell preform during the vibration of the installation shaft.

[0039] In some embodiments, the ends of the brushes have magnetic members, the magnetic members at the ends of two brushes attract each other, and the mounting shaft comprises ferromagnetic material.

[0040] In the above technical solution, by setting the end of the brush to have a magnetic part, and the magnetic parts at the ends of the two brushes attract each other, after the installation shaft passes, the two flexible shielding parts are closed as soon as possible under the action of magnetic attraction. By setting the installation shaft to include ferromagnetic material, the permanent magnet at the end of the brush is attracted to the installation shaft wherever the installation shaft goes, so as to better block the penetration hole and reduce the risk of airflow entering.

[0041] In some embodiments, a cover plate is sleeved on the installation shaft, and the cover plate is configured to move along the first direction with the installation shaft and cover the through hole while moving.

[0042] In the above technical solution, a cover plate is provided on the installation shaft, and the cover plate is configured to move along the first direction with the installation shaft, and cover the penetration hole while moving, so that the penetration hole can be sealed higher and better, reducing the risk of airflow entering.

[0043] In some embodiments, the dust removal device further includes an axial drive assembly; the axial drive assembly is connected to the mounting shaft, and the axial drive assembly is configured to drive the dust removal brush to extend and retract axially along the mounting shaft.

[0044] In the above technical solution, the dust removal device includes an axial drive assembly, and the axial drive assembly can drive the dust removal brush to extend and retract along the axial direction of the installation axis. After the dust removal is completed, the drive assembly can drive the installation axis to move the dust removal brush away from the battery cell preform, so as to utilize the negative pressure in the dust removal cover to clean the residual welding slag on the dust removal brush. After the dust removal device and the battery cell preform are released from installation, there is no need to clean the dust removal brush and the dust removal cover additionally, thereby reducing the risk of contaminating other battery cell preforms when the dust removal device is used to clean other battery cell preforms next time.

[0045] In some embodiments, the dust removal device further includes a second drive assembly, which is connected to the dust removal assembly and the vibration assembly, and the second drive assembly is configured to drive the dust removal assembly and the vibration assembly to move along a second direction; the second direction intersects with the first direction.

[0046] In the above technical solution, by setting the dust removal device to include a second drive component, and the second drive component is capable of driving the dust removal component and the vibration component to move along the second direction, the dust removal component can be matched and installed with the battery cell preform that needs to be cleaned, which is simple to operate, reduces the steps of manual installation, and improves the degree of automation.

[0047] In some embodiments, the first direction and the second direction are perpendicular to each other and parallel to the horizontal direction.

[0048] In the above technical solution, by setting the first direction and the second direction to be perpendicular to each other and parallel to the horizontal direction, the dust removal device in the present application can clean the horizontally placed battery cell preforms.

[0049] In some embodiments, the dust removal device further includes a control circuit; the control circuit is electrically connected to the vibration assembly, the first drive assembly, the second drive assembly, the air extraction assembly, and the axial drive assembly respectively; the control circuit is configured to:

[0050] In response to receiving a cleaning instruction, the dust removal cover is evacuated by the exhaust assembly to form a negative pressure, and the dust removal assembly is driven by the second drive assembly to move from an initial position toward the battery cell preform to a preset position along the second direction;

[0051] In response to the dust removal assembly moving to the preset position, the dust removal brush is vibrated by the vibration assembly and the dust removal assembly is driven to move back and forth in a first direction by the first driving assembly to clean the battery cell preform;

[0052] In response to the completion of cleaning, the dust removal assembly is driven by the second drive assembly to return from the preset position to the initial position along the second direction, and the dust removal brush is controlled by the axial drive assembly to retract from the original position toward the interior of the dust removal cover along the axial direction of the mounting shaft and extend to the original position after maintaining it for a preset time.

[0053] In the above technical solution, by setting up a control circuit to control the operation of the vibration component, the first drive component, the second drive component, the exhaust component and the axial drive component, the current can be accurately controlled to ensure the normal operation of the entire dust removal device, and it can also serve as a safety protection circuit and a conversion circuit.

[0054] In some embodiments, the dust removal device includes two symmetrically and spaced-apart dust removal components, and the first drive component, the vibration component, the axial drive component, the second drive component, the exhaust component and / or the installation cavity that respectively drive the two dust removal components and / or the dust removal brushes to move.

[0055] In the above technical solution, by setting two symmetrical and spaced-apart dust removal components, and a first drive component and a second drive component, a vibration component, an axial drive component, an exhaust component and / or an installation cavity that respectively drive the two dust removal components and / or the dust removal brushes to move, the welding slag on the two hollow poles in the battery cell preform can be cleaned at the same time, thereby improving the cleaning efficiency.

[0056] In order to solve the above technical problems, in the fourth aspect, another technical solution adopted in this application is to provide a battery production system, which includes a welding device and a dust removal device, wherein the dust removal device is the dust removal device provided in any one of the above embodiments.

[0057] In the above technical solution, a dust removal device is provided including a dust removal component and a first drive component, the dust removal component includes a dust removal brush, and the first drive component is configured to drive the dust removal brush to move along a first direction, so that the dust removal brush can move while cleaning the welding slag, thereby clearing the welding slag on the hollow pole of the battery cell preform over a larger area; further, the dust removal brush can clean the strip-type weld marks, thereby improving the cleaning effect of the dust removal device.

Brief Description of the Drawings

[0058] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. 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 these drawings without any creative work.

[0059] FIG1 is a schematic structural diagram of a battery cell preform;

[0060] FIG2 is a schematic diagram of a partial structure of the battery cell preform of FIG1 ;

[0061] FIG3 is a schematic structural diagram of a dust removal device provided in some embodiments of the present application;

[0062] FIG4 is a schematic structural diagram of the dust removal device in FIG3 from another perspective;

[0063] FIG5 is a schematic structural diagram of a dust cover, a plug, and an installation cavity provided in some embodiments of the present application;

[0064] FIG6 is a schematic structural diagram of a dust cover, a plug, and an installation cavity provided in other embodiments;

[0065] FIG7 is a schematic structural diagram of an installation cavity provided in some embodiments of the present application;

[0066] FIG8 is a schematic structural diagram of a dust removal device provided in other embodiments of the present application;

[0067] FIG9 is a schematic structural diagram of a battery production system provided in some embodiments of the present application.

[0068] Description of Figure Numbers:

[0069] 1-dust removal device, 10-dust removal assembly, 11-dust removal brush, 12-dust removal cover, 120-side wall of dust removal cover, 121-air inlet, 122-port, 123-long side, 124-short side, 13-flexible protective cover, 14-plug, 140-surface of plug close to dust removal brush, 20-first drive assembly, 21-cylinder mounting plate, 22-transverse cylinder, 23-transverse slide rail, 30-vibration assembly, 31-vibration motor, 32-mounting shaft, 40-exhaust assembly, 50-mounting cavity, 51-side wall of the mounting cavity facing away from the dust removal cover, 52 -through hole, 53-air outlet, 54-flexible shielding member, 60-axial drive assembly, 61-axial transverse cylinder, 62-axial transverse slider, 70-second drive assembly, 71-support plate, 72-power mechanism, 73-first slide rail, 80-second direction transverse block, 100-dust hood mounting plate, 200-control circuit, 1000-battery production system, 2-welding device, 3-clamp, 2000-battery cell preform, 2100-hollow pole, 2200-gap, 2300-ear, 2400-shell, 2500-battery cell. [Specific implementation method]

[0070] 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 in 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.

[0071] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or apparatuses.

[0072] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0073] In the description of the embodiments of the present application, the technical terms "first", "second", "third", etc. are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more (including two), such as two, three, etc., unless otherwise clearly and specifically defined. Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0074] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0075] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or position relationship based on the relative orientation or position relationship between the components in a certain specific posture (as shown in the drawings) shown in the drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0076] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0077] In this application, battery cells may include lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries. Battery cells may be cylindrical, flat, or in other shapes. Battery cells are generally categorized into three types based on packaging: cylindrical, prismatic, and pouch-type. A battery cell preform refers to the structure of a battery cell prior to welding the terminal post. For ease of explanation, the following examples use lithium-ion batteries as an example.

[0078] In the field of new energy, lithium-ion batteries have become one of the focuses of high-tech development due to their advantages such as high voltage, high capacity, small size, no memory effect, pollution-free, small size, low internal resistance, low self-discharge, and many cycles.

[0079] Welding is a critical step in lithium-ion battery production. For example, a traditional battery cell consists of a housing, a cell, an adapter, and a top end cap. The cell has tabs, and the top end cap houses the electrode posts. The cell and adapter are installed into the housing through the top port, and the top end cap seals the top of the housing. During production, the tabs are welded to the adapter first, followed by the adapter to the electrode posts. Because the welding process between the electrode posts and adapter in traditional battery cells produces spot weld marks, the dust removal brush does not need to be moved during dust removal.

[0080] In order to meet market demand, the applicant has developed a new battery cell. Please refer to Figures 1 and 2, where Figure 1 is a structural diagram of a new battery cell preform developed by the applicant, and Figure 2 is a partial structural diagram of the battery cell preform of Figure 1. The new battery cell preform 2000 includes a shell 2400, a battery cell 2500, a bottom end cover (not shown) and a hollow pole 2100; wherein, the battery cell 2500 is loaded into the shell 2400 from the bottom port of the shell 2400, and the bottom end cover seals the bottom of the shell 2400; the hollow pole 2100 is embedded in the top wall of the shell 2400, and the hollow pole 2100 includes an annular side wall and a bottom wall, and the bottom wall of the hollow pole 2100 has an opening (not shown); the battery cell 2500 has a pole ear 2300, and the pole ear 2300 is inserted into the hollow pole 2100 from the opening in the bottom wall of the hollow pole 2100, and is welded to the bottom wall of the hollow pole 2100 after being bent. The hollow pole 2100 of a new battery cell preform 2000 is directly welded to the tab 2300. Consequently, the welding process produces stripe-shaped weld marks, and during dust removal, a dust brush must be moved back and forth along the width of the tab 2300. Furthermore, a gap 2200 exists between the tab 2300 and the sidewall of the bottom opening of the hollow pole 2100. Laser welding and other processes generate a large amount of welding slag and other substances. Due to its small size, the welding slag is easily absorbed by structures such as the pole piece, or it can fall through the gap 2200 in the battery cell preform 2000 into the interior of the battery cell preform 2000, causing contamination and affecting the performance and service life of the battery. Therefore, cleaning the welding slag after welding is a technical issue that urgently needs to be addressed.

[0081] In order to solve one or more of the above-mentioned technical problems, an embodiment of the present application provides a dust removal device, which includes a dust removal component and a first drive component. The dust removal component includes a dust removal brush, and the first drive component is connected to the dust removal brush and is configured to drive the surface dust removal brush to move along a first direction; wherein, since the dust removal brush can move while cleaning the welding slag, it can remove the welding slag on the hollow pole of the battery cell preform over a larger area. Furthermore, the dust removal brush can clean the strip-type weld marks, thereby improving the cleaning effect of the dust removal device.

[0082] The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0083] Please refer to Figures 3 and 4, where Figure 3 is a structural schematic diagram of the dust removal device 1 provided in some embodiments of the present application; Figure 4 is a structural schematic diagram of the dust removal device in Figure 3 from another perspective.

[0084] The dust removal device 1 provided in the present application includes a dust removal component 10 and a first drive component 20. The dust removal component 10 includes a dust removal brush 11. The first drive component 20 is connected to the dust removal brush 11 and is configured to drive the dust removal brush 11 to move along the first direction X.

[0085] The dust removal assembly 10 is configured to clean the welding slag on the battery cell preform 2000. The cleaning method can be physical or chemical. Physical cleaning involves directly removing the welding slag without changing its molecular structure, such as through negative pressure suction. Chemical cleaning involves destroying the chemical structure of the welding slag through a chemical reaction, causing it to dissolve or melt. To minimize damage to the battery cell preform 2000, the present embodiment uses physical cleaning to remove the welding slag.

[0086] Referring to Figures 1 and 2 , the dust removal brush 11 collects and cleans welding slag that has fallen on or been adsorbed on the hollow terminal 2100 of the battery cell preform 2000. The dust removal brush 11 can be made of a soft material such as rubber, silicone, plastic, or pig bristles to minimize damage to the battery cell preform 2000 during the cleaning process.

[0087] The first driving assembly 20 is used to provide power for the dust removal assembly 10 to drive the dust removal assembly 10 to move along the first direction X, wherein the first direction X is related to the arrangement of the battery cell preform 2000 and only needs to clean the welding slag in the battery cell preform 2000. In some embodiments of the present application, the shape of the hollow pole 2100 of the battery cell preform 2000 may be a racetrack shape, a circle, an ellipse, a rectangle, or a positive direction. When the shape of the hollow pole 2100 of the battery cell preform 2000 is a racetrack shape or a rectangle, the first direction X may be the extension direction of the long side of the cross section of the hollow pole 2100, so that when the dust removal brush 11 moves along the first direction X, the coverage area of ​​the dust removal brush 11 is larger and the number of back and forth movements is reduced; when the shape of the hollow pole 2100 of the battery cell preform 2000 is a circle, the first direction X may be the extension direction of the diameter of the hollow pole 2100; when the shape of the hollow pole 2100 of the battery cell preform 2000 is a square, the first direction X may be the extension direction of any side. The following embodiment is described using as an example a case where the hollow pole 2100 of the battery cell preform 2000 is in a racetrack shape, the long side of the cross section of the hollow pole 2100 is horizontal and the short side is vertical, and the first direction X is the direction in which the long side of the cross section of the hollow pole 2100 extends. That is, the battery cell preform 2000 is arranged parallel to the horizontal direction, and the top wall of the housing 2400 is arranged perpendicular to the horizontal direction, thereby reducing the risk of welding slag entering the interior of the battery cell preform 2000 under the action of gravity after welding.

[0088] Furthermore, in some embodiments, the first drive assembly 20 includes a cylinder mounting plate 21, a transverse cylinder 22 and a transverse slider (not shown); wherein, the transverse cylinder 22 is mounted on the cylinder mounting plate 21, and the piston rod of the transverse cylinder 22 is connected to the transverse slider through a cylinder connecting block; the cylinder mounting plate 21 is provided with transverse slide rails 23 on opposite sides of the transverse cylinder 22 along the moving direction of the piston rod, and the transverse sliders are respectively provided on the corresponding transverse slide rails 23.

[0089] In some embodiments, the dust removal assembly 10 further includes a dust removal cover 12 , and the dust removal brush 11 is disposed in the dust removal cover 12 and is configured to be able to move back and forth along the first direction X in the dust removal cover 12 .

[0090] Specifically, the shape and size of the dust cover 12 match the shape and size of the hollow pole 2100. The dust cover 12 is configured to cover the hollow pole 2100 of the battery cell preform 2000, for example, by being mounted on the outside of the hollow pole 2100 cover. This can isolate the hollow pole 2100 of the battery cell preform 2000 from the outside world, reducing the risk of welding slag splashing or scattering to other parts or the environment during the cleaning process of the dust removal assembly 10, thereby reducing pollution. On the other hand, the dust cover 12 also limits the movement range of the dust removal brush 11, which can reduce the contact between the dust removal brush 11 and other parts, thereby reducing the scattering of welding slag on the dust removal brush 11. Furthermore, in some embodiments, the dust removal device 1 includes a dust removal cover mounting plate 100, and the dust removal assembly 10 can be mounted on the cylinder mounting plate 21 via the dust removal cover mounting plate 100.

[0091] Please refer to Figures 5 and 6 together, where Figure 5 is a structural schematic diagram of the dust hood 12, plug 14 and installation cavity 50 provided in some embodiments of the present application; Figure 6 is a structural schematic diagram of the dust hood 12, plug 14 and installation cavity 50 provided in other embodiments.

[0092] In some embodiments, the side wall 120 of the dust cover 12 has an air inlet 121. Specifically, the dust cover 12 is a hollow cylindrical body with two ends open, and the air inlet 121 can be located at any position of the annular side wall of the hollow cylindrical body.

[0093] The sidewall 120 of the dust hood 12 is an annular plate of a certain thickness that is curled and enclosed to form an internal storage space, and has an opening at at least one end. An air inlet 121 is provided on and through the sidewall 120 of the dust hood 12. This allows ambient air to enter the dust hood 12, allowing welding slag removed by the dust brush 11 to flow with the air, thereby cleaning the welding slag.

[0094] Furthermore, in some embodiments, the port 122 of the dust cover 12 is provided with a flexible protective cover 13 .

[0095] The port 122 of the dust cover 12 is an opening formed at the end of the side wall 120 of the dust cover 12. The port 122 of the dust cover 12 is used to insert the hollow pole 2100 into the dust cover 12. The flexible protective cover 13 can surround the port 122 of the dust cover 12. On the one hand, it can protect the port 122 of the dust cover 12. On the other hand, it can also reduce the damage of the port 122 of the dust cover 12 to the hollow pole 2100 or other components of the battery cell preform 2000 during the process of aligning the dust cover 12 with the battery cell preform 2000.

[0096] In some embodiments, the port 122 of the dust cover 12 includes two oppositely disposed long sides 123 and two oppositely disposed short sides 124 . The long sides 123 extend along the first direction X, and the short sides 124 connect the two long sides 123 , respectively.

[0097] Among them, the long side 123 of the port 122 is a straight side parallel to the first direction X, and the short side 124 of the port 122 is a curved side protruding outward toward the port 122 of the dust cover 12, so that the shape of the port 122 of the dust cover 12 matches the shape of the hollow pole 2100 of the battery cell preform 2000, so that the dust cover 12 can just cover the hollow pole 2100 of the battery cell preform 2000, and neither of them will fall off easily, and the hollow pole 2100 of the battery cell preform 2000 will not be exposed.

[0098] In some embodiments, the dust removal assembly 10 further includes a plug 14 , which is disposed in the dust removal cover 12 .

[0099] The plug 14 is configured to be pressed onto the interior of the hollow pole 2100 of the battery cell preform 2000 to block the open gap 2200 at the bottom of the hollow pole 2100 of the battery cell preform 2000 .

[0100] In the embodiment of the present application, a plug 14 is provided in the dust hood 12. The plug 14 can be pressed onto the interior of the hollow pole 2100 of the battery cell preform 2000, thereby blocking the open gap 2200 at the bottom of the hollow pole 2100 of the battery cell preform 2000, thereby reducing the risk of welding slag entering the interior of the battery cell preform 2000 through the open gap 2200 at the bottom of the hollow pole 2100.

[0101] In some embodiments, one end of the plug 14 extends out of the port 122 of the dust cover 12, so as to facilitate insertion into the open gap 2200 at the bottom of the hollow pole 2100 and pass through the gap 2200, thereby reducing the risk of welding slag entering the interior of the battery cell preform 2000 and causing contamination.

[0102] Furthermore, in some embodiments, the plug 14 is spaced apart from the inner wall surface of the dust cover 12 and extends along the first direction X. In some embodiments, the dust removal brush 11 is located at the bottom of the plug 14, wherein the bottom is the side of the plug 14 close to the ground. In order to further reduce the risk of welding slag entering the interior of the battery cell preform 2000 under the action of gravity after welding, when the battery cell preform 2000 is arranged parallel to the horizontal direction, the tab 2300 is located at the bottom of the gap 2200, that is, the tab 2300 is located on the side of the gap 2200 close to the ground. By locating the dust removal brush 11 at the bottom of the plug 14, the plug 14 blocks the gap 2200, and the dust removal brush 11 can clean the welding slag around the tab 2300, further reducing the risk of welding slag falling, and will not hinder the movement of the dust removal brush 11 along the first direction X.

[0103] Furthermore, in some embodiments, the surface 140 of the plug 14 close to the dust removal brush 11 is a plane, and the dust removal brush 11 is cylindrical and is tangent to or spaced apart from the plane.

[0104] The dust brush 11 is cylindrical. Compared with other shapes, such as a cuboid, prism, or pyramid, it has minimal air resistance during movement, and because it has no sharp corners, it is easier to clean corners. The surface 140 of the plug 14 near the dust brush 11 is flat and tangential to or spaced apart from the dust brush 11, allowing the dust brush 11 to translate along the extension direction of the plane of the plug 14. The plug 14 does not hinder the translation of the dust brush 11 while ensuring that the gap 2200 at the bottom of the hollow pole 2100 is sealed. In some embodiments, the surface 140 of the plug 14 near the dust brush 11 is flat and tangential to the dust brush 11, allowing the dust brush 11 to have a larger cleaning area.

[0105] Furthermore, in some embodiments, the plug 14 is made of rubber or silicone. The rubber or silicone material can make the plug 14 elastic, thereby reducing damage to the hollow pole 2100 during insertion of the plug 14 into the gap 2200 at the bottom of the hollow pole 2100 and improving the sealing performance of the gap 2200.

[0106] In some embodiments, the dust removal device 1 further includes a vibration assembly 30, which is connected to the dust removal brush 11 and is configured to vibrate the dust removal brush 11; the first drive assembly 20 is also connected to the vibration assembly 30 and is configured to drive the dust removal brush 11 and the vibration assembly 30 to move together along the first direction X.

[0107] Among them, the vibration component 30 can use high-frequency vibration to make the detachable welding slag and the adsorbed welding slag fall off the weld mark being cleaned, and can make the dust removal brush 11 vibrate and move during the process of cleaning the welding slag, thereby improving the cleaning efficiency and cleaning effect.

[0108] The vibration assembly 30 can be implemented using a motor, also known as an electric motor, which is an electromagnetic device that converts or transmits electrical energy according to the law of electromagnetic induction. Specifically, in one embodiment, the vibration assembly 30 includes a vibration motor 31 and a mounting shaft 32. The vibration motor 31 is disposed outside the dust cover 12. One end of the mounting shaft 32 is mounted on the vibration motor 31, and the other end extends into the dust cover 12 and is connected to the dust brush 11. While the dust brush 11 and the vibration assembly 30 move together in the first direction X, the plug 14 and the dust cover 12 remain stationary.

[0109] The mounting shaft 32 connects the dust removal brush 11 and the vibration motor 31 so that the vibration motor 31 provides power for the vibration of the dust removal brush 11. In the embodiment of the present application, the vibration of the dust removal brush 11 is achieved by providing a vibration assembly 30 including the vibration motor 31 and the mounting shaft 32. The device is simple, easy to install, and easy to implement.

[0110] Furthermore, please refer to FIG. 7 , which is a schematic structural diagram of the installation cavity provided in some embodiments of the present application.

[0111] The dust removal device 1 further includes an exhaust component 40 and an installation cavity 50; the exhaust component 40 is connected to the installation cavity 50, and the end of the dust cover 12 away from the port is connected to the installation cavity 50. The side wall 51 of the installation cavity 50 at the end away from the dust cover 12 has a through hole 52, and the installation shaft 32 extends through the through hole 52 into the dust cover 12, or is connected to the dust brush 11 in the dust cover 12; the through hole 52 extends along the first direction X.

[0112] The exhaust assembly 40 is configured to exhaust air while the dust removal brush 11 is gently sweeping the welding slag, so as to form a negative pressure in the installation cavity 50 and the dust removal cover 12, thereby allowing the loosened welding slag to enter the exhaust assembly 40. In some embodiments of the present application, the exhaust assembly 40 can be implemented by a vacuum device.

[0113] The mounting cavity 50 is connected between the dust cover 12 and the exhaust assembly 40, providing a buffer space to reduce the risk of excessive negative pressure damaging the dust brush 11 and / or the battery cell preform 2000 within the dust cover 12. A side wall 51 of the mounting cavity 50, located at the end facing away from the dust cover 12, has a through hole 52. The through hole 52 allows the mounting shaft 32 to pass through, allowing the mounting shaft 32 to move in the first direction X and drive the dust brush 11 to move in the first direction X.

[0114] In some embodiments, the mounting cavity 50 has an air outlet 53 connected to the exhaust assembly 40 ; in some embodiments, along the first direction X, the air outlet 53 and the air inlet 121 of the dust cover 12 are located on opposite sides of the dust cover 12 and the mounting cavity 50 .

[0115] The air outlet 53 is an opening extending through the sidewall 51 of the mounting cavity 50. Through the air outlet 53 of the mounting cavity 50, the air within the dust hood 12 and the mounting cavity 50 can be extracted through the exhaust assembly 40. Furthermore, by providing the air outlet 53 in the mounting cavity 50 and the air inlet 121 in the dust hood 12, air from the environment can continuously enter the dust hood 12 and the mounting cavity 50 for ventilation during the dust removal process, allowing the airflow to continuously remove welding slag. This also reduces the risk of damage to the battery cell preform 2000 caused by excessive negative pressure within the dust hood 12 due to excessive air extraction by the exhaust assembly 40 during the dust removal process. Along the first direction X, the air outlet 53 and the air inlet 121 of the dust hood 12 are located on opposite sides of the dust hood 12 and the mounting cavity 50, that is, on opposite sides of the dust brush 11, allowing air to flow from one side of the dust brush 11 to the other, making it easier to remove welding slag from the dust brush 11.

[0116] In some embodiments, the side wall 51 of the installation cavity 50 facing away from the dust cover 12 has two flexible shielding members 54; along the third direction Z perpendicular to the first direction X, the two flexible shielding members 54 are respectively arranged on opposite sides of the through hole 52 and spliced ​​together to block the through hole 52.

[0117] The flexible shielding member 54 is a deformable or bendable member. The first direction X is taken as an example to be the horizontal direction, and the third direction Z is the vertical direction, which can also be considered as the up and down direction. Two flexible shielding members 54 are respectively arranged on opposite sides of the through hole 52 and are spliced ​​together to block the through hole 52, so that when the installation shaft 32 moves along the first direction X in the through hole 52, the through hole 52 can be covered by the two flexible shielding members 54, reducing the risk of airflow entering the installation cavity 50 from the through hole 52, so that the airflow enters the installation cavity 50 from the air inlet 121 as much as possible, which is conducive to taking away the welding slag of the dust removal brush 11.

[0118] Furthermore, in a specific embodiment, the flexible shielding member 54 is a brush, which can further clean or absorb the welding slag on the installation shaft 32 passing through the through hole 52, thereby reducing the welding slag absorbed on the installation shaft 32 and reducing the risk of welding slag splashing into the interior of the battery cell preform 2000 during the vibration of the installation shaft 32.

[0119] In some embodiments, the ends of the brushes have magnetic members (not shown), and the magnetic members at the ends of the two brushes attract each other, so that after the installation shaft 32 passes, the two flexible shielding members 54 close as quickly as possible under the action of magnetic attraction.

[0120] The magnetic component is a component with magnetic attraction, a component that can generate magnetic attraction during use or a component that can be attracted to a component with magnetic attraction, such as a permanent magnet.

[0121] In some embodiments, the mounting shaft 32 includes ferromagnetic material, so that wherever the mounting shaft 32 goes, the permanent magnet at the end of the brush is attracted to the mounting shaft 32, thereby better sealing the through hole 52 and reducing the risk of airflow entering.

[0122] In some embodiments, a cover plate (not shown) is mounted on the mounting shaft 32. The cover plate is configured to move along with the mounting shaft 32 in the first direction X and cover the through hole 52 while moving. The use of the cover plate can better block the through hole 52 and reduce the risk of airflow intrusion.

[0123] In some embodiments, the dust removal device 1 further includes an axial drive assembly 60 ; the axial drive assembly 60 is connected to the mounting shaft 32 , and the axial drive assembly 60 is configured to drive the dust removal brush 11 to extend and retract axially along the mounting shaft 32 .

[0124] The axial drive assembly 60 refers to a component that drives the mounting shaft 32 in the axial direction, such as a motor or a cylinder. That is, the axial drive assembly 60 can drive the dust removal brush 11 to extend and retract in the axial direction of the mounting shaft 32. The axial direction of the mounting shaft 32 is parallel to the second direction Y and perpendicular to the third direction Z. In some embodiments, the axial drive assembly 60 may include an axial traverse cylinder 61 and an axial traverse slider 62.

[0125] After the dust removal is completed, the axial drive assembly 60 can drive the installation shaft 32 to move the dust removal brush 11 away from the battery cell preform 2000, so that the dust removal brush 11 moves to the inside of the dust removal cover 12 or the inside of the installation cavity 50, and the negative pressure in the dust removal cover 12 is used to clean the residual welding slag on the dust removal brush 11. After the dust removal device 1 and the battery cell preform 2000 are released from installation, there is no need to clean the dust removal brush 11 and the dust removal cover 12 additionally, thereby reducing the risk of contaminating other battery cell preforms 2000 when the dust removal device 1 is used to clean other battery cell preforms 2000 next time.

[0126] In some embodiments, the dust removal device 1 further includes a second drive assembly 70, which is connected to the dust removal assembly 10 and the vibration assembly 30, and the second drive assembly 70 is configured to drive the dust removal assembly 10 and the vibration assembly 30 to move along a second direction Y; the second direction Y intersects with the first direction X.

[0127] The second drive assembly 70 is used to provide power for the movement of the dust removal assembly 10 and the vibration assembly 30. In some embodiments, the second drive assembly 70 may include a support plate 71, a power mechanism 72, and a first slide rail 73. The first slide rail 73 and the dust cover mounting plate 100 are respectively disposed on both sides of the support plate 71. The power mechanism 72 is mounted on the dust cover mounting plate 100 and is configured to drive the dust removal assembly 10 to move along the second direction Y by driving the dust cover mounting plate 100.

[0128] In this way, the dust removal assembly 10 can be matched and installed with the battery cell preform 2000 that needs to be cleaned, which is simple to operate, reduces the steps of manual installation, and improves the degree of automation.

[0129] In some embodiments, the first direction X and the second direction Y are perpendicular to each other and parallel to the horizontal direction, that is, the second drive assembly 70 and the second drive assembly 70 are transverse drive assemblies. Therefore, the dust removal device 1 of the present application can clean the battery cell preform 2000 placed laterally (i.e., horizontally).

[0130] Furthermore, in some embodiments, the dust removal device 1 further includes a second direction Y transverse movement barrier 80, and the dust removal assembly 10 is arranged on the second direction Y transverse movement barrier 80, and the second direction Y transverse movement barrier 80 is configured to limit the distance that the dust removal assembly 10 moves in the direction close to the battery cell preform 2000, so that the dust removal assembly 10 stops after moving to a preset position in the direction close to the battery cell preform 2000, thereby reducing the risk of damaging the battery cell preform 2000 due to excessive movement of the dust removal assembly 10.

[0131] Please refer to Figure 8, which is a structural schematic diagram of the dust removal device provided in other embodiments of the present application.

[0132] The dust removal device 1 further includes a control circuit 200, wherein the control circuit 200 is electrically connected to the vibration assembly 30, the first drive assembly 20, the second drive assembly 70, the air extraction assembly 40, and the axial drive assembly 60 respectively.

[0133] The control circuit 200 refers to a circuit for controlling mechanical and electrical equipment, and may include a PCB board and a chip. The control circuit 200 may be configured to: in response to receiving a cleaning instruction, evacuate the dust cover 12 to form a negative pressure through the exhaust assembly 40, and drive the dust removal assembly 10 to move from an initial position toward the battery cell preform 2000 to a preset position along the second direction Y through the second drive assembly 70; in response to the dust removal assembly 10 moving to the preset position, vibrate the dust removal brush 11 through the vibration assembly 30 and drive the dust removal assembly 10 back and forth along the first direction X through the first drive assembly 20 to clean the battery cell preform 2000; in response to the completion of cleaning, drive the dust removal assembly 10 from the preset position to return to the initial position along the second direction Y through the second drive assembly 70, and control the dust removal brush 11 to retract from the original position toward the interior of the dust cover 12 along the axial direction of the mounting shaft 32 through the axial drive assembly 60, and then extend back to the original position after being held for a preset time.

[0134] Therefore, the present application can control the operation of the vibration component 30, the first drive component 20, the second drive component 70, the exhaust component 40 and the axial drive component 60 by setting up a control circuit 200, can accurately control the current, ensure the normal operation of the entire dust removal device 1, and can also serve as a safety protection circuit and a conversion circuit.

[0135] Continuing with Figures 3 and 4 , in some embodiments, the dust removal device 1 includes two symmetrically spaced dust removal assemblies 10, as well as a first drive assembly 20, a vibration assembly 30, an axial drive assembly 60, a second drive assembly 70, an exhaust assembly 40, and / or an installation cavity 50, which respectively drive the two dust removal assemblies 10 and / or the dust removal brushes 11. This allows for simultaneous cleaning of welding slag from both hollow poles 2100 in the battery cell preform 2000, improving cleaning efficiency. The two dust removal assemblies 10 may share the first drive assembly 20 and the second drive assembly 70.

[0136] Please also refer to FIG9 , which is a schematic diagram of the structure of a battery production system 1000 provided in some embodiments of the present application. The battery production system 1000 includes a dust removal device 1 , a welding device 2 , and a clamp 3 .

[0137] The dust removal device 1 is located downstream of the welding device 2. The fixture 3 is used to secure the battery cell preform 2000. The fixture 3 passes through the welding device 2 and the dust removal device 1, bringing the battery cell preform 2000 to the welding device 2 and dust removal device 1 stations, respectively. The welding device 2 is used to weld the hollow pole 2100 and the tab 2300 in the battery cell preform 2000. The dust removal device 1 is any of the above-mentioned embodiments and is used to clean the battery cell preform 2000 after welding.

[0138] In the embodiment of the present application, the dust removal device 1 includes a dust removal component 10 and a first drive component 20. The dust removal component 10 includes a dust removal brush 11, and the first drive component 20 is configured to drive the dust removal brush 11 to move along the first direction X; wherein, since the dust removal brush 11 can move while cleaning the welding slag, the welding slag on the hollow pole 2100 of the battery cell preform 2000 can be removed over a larger area. Furthermore, the dust removal brush 11 can clean the strip-type weld marks, thereby improving the cleaning effect of the dust removal device 1.

[0139] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0140] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0141] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A dust removal device, comprising: A dust removal assembly, including a dust removal brush; A first driving assembly, connected to the dust removal brush and configured to drive the dust removal brush to move along a first direction; A dust cover, wherein the dust brush is disposed in the dust cover and is configured to be able to move back and forth in the dust cover along the first direction; Wherein, the port of the dust cover includes two long sides arranged opposite to each other and two short sides arranged opposite to each other, the long sides extend along the first direction, and the short sides are respectively connected to the two long sides.

2. A dust removal device, comprising: A dust removal assembly, including a dust removal brush; A first driving assembly, connected to the dust removal brush and configured to drive the dust removal brush to move along a first direction; A dust cover, wherein the dust brush is disposed in the dust cover and is configured to be able to move back and forth in the dust cover along the first direction; Wherein, the dust removal component further includes a plug, and the plug is arranged in the dust removal cover.

3. The dust removal device according to claim 2, wherein: The side wall of the dust removal cover is provided with an air inlet.

4. The dust removal device according to claim 2, wherein: The port of the dust removal cover is provided with a flexible protective sleeve.

5. The dust removal device according to claim 2, wherein: The port of the dust cover includes two long sides arranged opposite to each other and two short sides arranged opposite to each other, the long sides extend along the first direction, and the short sides are respectively connected to the two long sides.

6. The dust removal device according to claim 2, wherein: One end of the plug extends out of the port of the dust cover.

7. The dust removal device according to claim 2, wherein: The plug is spaced apart from the inner wall surface of the dust cover and extends along the first direction, and the dust removal brush is located at the bottom of the plug.

8. The dust removal device according to claim 7, wherein: The surface of the plug close to the dust removal brush is a plane, and the dust removal brush is cylindrical and is tangent to or spaced from the plane.

9. The dust removal device according to claim 2, wherein: The material of the plug includes rubber or silicone.

10. The dust removal device according to any one of claims 2 to 9, wherein: The dust removal device further includes a vibration assembly, which is connected to the dust removal brush and is configured to vibrate the dust removal brush; the first driving assembly is also connected to the vibration assembly and is configured to drive the dust removal brush and the vibration assembly to move together along the first direction.

11. A dust removal device, comprising: A dust removal assembly, including a dust removal brush; A first driving assembly, connected to the dust removal brush and configured to drive the dust removal brush to move along a first direction; Wherein, the dust removal device further includes a vibration component, which is connected to the dust removal brush and is configured to vibrate the dust removal brush; the first driving component is also connected to the vibration component and is configured to drive the dust removal brush and the vibration component to move together along the first direction.

12. The dust removal device according to claim 11, wherein: The dust removal assembly further includes a dust removal hood, the dust removal brush is arranged in the dust removal hood and is configured to be able to move back and forth in the dust removal hood along the first direction; the vibration assembly includes a vibration motor and a mounting shaft, the vibration motor is arranged outside the dust removal hood, one end of the mounting shaft is installed on the vibration motor, and the other end extends into the dust removal hood and is connected to the dust removal brush.

13. The dust removal device according to claim 12, wherein: The dust removal device further includes an exhaust assembly and an installation cavity; the exhaust assembly is connected to the installation cavity, the end of the dust cover away from the port is connected to the installation cavity, the side wall of the installation cavity at the end away from the dust cover has a through hole, the installation shaft extends through the through hole into the dust cover, and the through hole extends along the first direction.

14. The dust removal device according to claim 13, wherein: The installation cavity has an air outlet communicated with the air extraction assembly; along the first direction, the air outlet and the air inlet of the dust cover are located on opposite sides of the dust cover and the installation cavity.

15. The dust removal device according to claim 13, wherein: The side wall of the installation cavity facing away from the dust cover has two flexible shielding members; along a third direction perpendicular to the first direction, the two flexible shielding members are respectively arranged on opposite sides of the penetration hole and spliced ​​with each other to block the penetration hole.

16. The dust removal device according to claim 15, wherein: The flexible shielding member is a brush.

17. The dust removal device according to claim 16, wherein: The ends of the brushes are provided with magnetic parts, the magnetic parts at the ends of two brushes attract each other, and the mounting shaft comprises ferromagnetic material.

18. The dust removal device according to claim 13, wherein: A cover plate is sleeved on the installation shaft, and the cover plate is configured to be able to move along the first direction with the installation shaft and cover the penetration hole while moving.

19. The dust removal device according to claim 13, wherein: The dust removal device further comprises an axial drive assembly; the axial drive assembly is connected to the mounting shaft, and the axial drive assembly is configured to be able to drive the dust removal brush to extend and retract along the axial direction of the mounting shaft.

20. The dust removal device according to claim 19, wherein: The dust removal device further includes a second driving assembly, which is connected to the dust removal assembly and the vibration assembly, and the second driving assembly is configured to drive the dust removal assembly and the vibration assembly to move along a second direction; the second direction intersects with the first direction.

21. The dust removal device according to claim 20, wherein: The first direction and the second direction are perpendicular to each other and parallel to the horizontal direction.

22. The dust removal device according to claim 20, wherein: The dust removal device further includes a control circuit; the control circuit is electrically connected to the vibration assembly, the first drive assembly, the second drive assembly, the air extraction assembly, and the axial drive assembly respectively; the control circuit is configured as follows: In response to receiving a cleaning instruction, the dust removal cover is evacuated by the exhaust assembly to form a negative pressure, and the dust removal assembly is driven by the second driving assembly to move from an initial position to a preset position toward the battery cell preform along the second direction; In response to the dust removal assembly moving to the preset position, the dust removal brush is vibrated by the vibration assembly and the dust removal assembly is driven to move back and forth along a first direction by the first driving assembly to clean the battery cell preform; In response to the completion of cleaning, the dust removal assembly is driven by the second drive assembly to return from the preset position to the initial position along the second direction, and the dust removal brush is controlled by the axial drive assembly to retract from the original position toward the interior of the dust removal cover along the axial direction of the mounting axis and maintain it for a preset time before extending to the original position.

23. The dust removal device according to claim 20, wherein: The dust removal device includes two symmetrical and spaced-apart dust removal components, and the first drive component, the vibration component, the second drive component, the exhaust component and / or the installation cavity that respectively drive the two dust removal components and / or the dust removal brushes to move.

24. A battery production system, comprising a welding device and a dust removal device, wherein: The dust removal device is a dust removal device according to any one of claims 1-23.

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