Cleaning device, production system and cleaning method

Abstract

A cleaning device (100), a production system (1000) and a cleaning method, the cleaning device (100) comprising a first fixing part (10), a second fixing part (20) and a laser assembly (30). The first fixing part (10) is used for fixing a shell (210); the second fixing part (20) is arranged opposite to the first fixing part (10) and is used for fixing an end cover (220); the laser assembly (30) is arranged on one side of the first fixing part (10) and the second fixing part (20) and is used for cleaning the shell (210) and the end cover (220) when the end cover is partially combined into the shell (210).

Description

Technical Field

[0001] This application relates to the field of batteries, and specifically to a cleaning device, production system, and cleaning method. Background Technology

[0002] In some products with sealed caps, taking battery cells as an example, during the assembly of the electrode components, housing, and end caps of the battery cells, the surfaces of the electrode components, housing, and end caps are contaminated with dirt generated during manufacturing. This dirt can easily cause poor sealing of the housing and end caps, and may even lead to safety risks to the battery cells. Summary of the Invention

[0003] In view of the above problems, this application provides a cleaning device, production system and cleaning method that can solve the problem of defects easily occurring during the welding of the shell and end cap of materials.

[0004] In a first aspect, this application provides a cleaning apparatus for cleaning materials, the materials comprising a housing and an end cap, the cleaning apparatus comprising:

[0005] A first fixing member is used to fix the housing;

[0006] The second fixing member is disposed opposite to the first fixing member and is used to fix the end cap;

[0007] A laser assembly is disposed on one side of the first and second fixing members and is used to clean the housing and the end cap when the end cap portion is closed into the housing.

[0008] In the cleaning device of this application embodiment, the housing of the material is fixed by a first fixing member, and the end cap is fixed by a second fixing member. Simultaneously, a laser assembly is positioned on one side of the first and second fixing members. This design allows for pre-welding cleaning of the material, effectively preventing dirt generated during the assembly of the housing and end cap from entering the housing, and effectively preventing dust generated during laser cleaning from entering the material. This effectively solves the contamination defects in the welding of the housing and end cap, thereby improving the yield rate of the housing and end cap welding.

[0009] In some embodiments, the first fastener includes a plurality of clamping members that together clamp the housing.

[0010] In this way, by setting up clamping components, the housing can be moved smoothly during cleaning.

[0011] In some embodiments, the plurality of clamping members are arranged circumferentially along the housing.

[0012] In this way, when multiple clamping components are arranged around the circumference of the housing, the clamping area of ​​the housing is larger, and the housing can be clamped more stably, which is beneficial for subsequent assembly.

[0013] In some embodiments, the cleaning device includes a clamping drive component that drives the plurality of clamping members to move closer to or further away from each other.

[0014] In this way, the clamping drive component can control the clamping element to clamp housings with different contours, making the design of the clamping element versatile.

[0015] In some embodiments, the second fastener includes a first mounting member and a first adsorption member fixed to the first mounting member, wherein the first adsorption member is used to adsorb the end cap.

[0016] In this way, the end cap can be adsorbed onto the first adsorption component, so that the end cap can be stably fixed, thereby ensuring the cleaning effect. At the same time, the first mounting component can push the end cap to fully engage with the housing after cleaning.

[0017] In some embodiments, the cleaning device further includes a protective shell disposed on the first mounting member, the first adsorption member being located within the protective shell, the protective shell being used to cover at least a portion of the outer surface of the end cap.

[0018] Thus, the first adsorption component prevents the end cap from shaking during the cleaning process, and the protective shell prevents the end cap from being damaged by the laser.

[0019] In some embodiments, the cleaning device further includes a rotation drive component for driving the first fixing member and the second fixing member to rotate, or driving the laser assembly to rotate.

[0020] In this way, the rotating drive component allows the end cap and housing to be cleaned from all angles.

[0021] In some embodiments, the rotation drive component includes a first drive sub-component and a second drive sub-component, wherein the first drive sub-component is used to drive the first fixed member to rotate, and the second drive sub-component is used to drive the second fixed member to rotate.

[0022] In this way, the first driving component and the second driving component can drive the first fixing component and the second fixing component to rotate respectively, thereby achieving all-round cleaning of the housing and end cap.

[0023] In some embodiments, the first fixing member and the second fixing member rotate synchronously.

[0024] Thus, by using the first and second fasteners, the housing and end caps can be prevented from deforming during cleaning.

[0025] In some embodiments, the cleaning device includes a first bracket and a rotating component, the rotating component being rotatably mounted on the first bracket, the first fixing member being mounted on the rotating component, and the first driving sub-component being used to drive the rotating component to rotate, thereby causing the first fixing member to rotate.

[0026] Thus, the first driving component can drive the rotating component to rotate, thereby causing the first fixed component to rotate, which in turn allows the housing to rotate during laser cleaning.

[0027] In some embodiments, the first drive component is located on the side of the first fixing member opposite to the second fixing member.

[0028] In this way, the first driving component can drive the first fixed component to rotate stably, and the first driving component and the second fixed component will not interfere with each other.

[0029] In some embodiments, the cleaning device includes a second bracket, and the second fixing member is rotatably connected to the second bracket.

[0030] Thus, the second bracket can be used to mount the second fixing member, allowing the second fixing member to rotate in any direction, thereby allowing the end cap to rotate in any direction.

[0031] In some embodiments, the cleaning device includes a limiting member disposed between the end cap and the housing when the end cap is closed into the housing, for limiting the depth to which the end cap is closed into the housing.

[0032] Thus, by placing the limiting member between the end cap and the housing, the depth to which the end cap is inserted into the housing can be limited, and the depth to which the end cap is inserted into the housing can be adjusted by adjusting the width of the limiting member.

[0033] In some embodiments, the cleaning device includes a guide, and a limiting member is disposed on the guide, the guide being used to guide the end cap portion into the housing.

[0034] In this way, the guide can guide the end cap portion into the housing.

[0035] In some embodiments, the guide member has a guide channel for guiding the end cap into the housing, and the limiting member is disposed in the guide channel.

[0036] Thus, the guide channel on the guide member allows the end cap to be inserted into the housing in a predetermined direction, preventing the end cap from shaking during the insertion process and ensuring that the end cap can be aligned with the housing so that the end cap can be quickly inserted into the housing.

[0037] In some embodiments, the guide includes a first portion and a second portion spaced apart from the first portion, the first portion and the second portion together defining the guide channel.

[0038] Thus, the spacing between the first and second parts allows the width of the guide channel to be adjusted, thereby adapting to end caps and housings of different sizes and improving the applicability of the guide.

[0039] In some embodiments, the cleaning device includes a guide drive component for driving the guide member toward or away from the end cap.

[0040] In this way, the guide drive component drives the guide to move closer to or away from the end cap, thereby limiting the guide between the end cap and the housing before cleaning, and after the limiting is completed, the guide separates from the end cap and the housing for subsequent laser cleaning.

[0041] In some embodiments, the cleaning device includes a first pneumatic component for introducing gas into the housing through the liquid inlet of the end cap.

[0042] In this way, by injecting gas into the housing, a positive pressure can be formed inside the housing, making the internal pressure of the housing greater than the external pressure. This effectively prevents dirt generated during the laser cleaning process or cleaned from the surface of the housing and end cap from entering the housing, thereby avoiding potential safety hazards to the materials.

[0043] In some embodiments, the cleaning device includes a second pneumatic component for adsorbing contaminants formed by the laser assembly during operation.

[0044] In this way, dirt generated during the laser cleaning process or cleaned from the surface of the housing and end cap can be adsorbed by the second air pressure component.

[0045] In some embodiments, the second pneumatic component includes an inhaler surrounding the second fixture, the inhaler having a first inhalation channel with its port facing the housing, and a negative pressure being formed within the first inhalation channel.

[0046] Thus, by orienting the port of the first suction channel toward the housing, the first suction channel can effectively adsorb dirt generated during the laser cleaning process or cleaned from the surface of the housing and end cap.

[0047] In some embodiments, the first fastener is formed with a second intake channel toward the end cap, and the second pneumatic component is used to create a negative pressure in the second intake channel.

[0048] Thus, by providing a second suction channel on the first fixture, the second suction channel can effectively absorb dirt generated during the laser cleaning process or cleaned from the surface of the housing and end cap.

[0049] In some embodiments, the cleaning device further includes a feeding assembly for securing the end cap when it is separated from the housing.

[0050] In this way, the end cap can be fixed to the feeding assembly, so that the end cap will not fall off when separated from the housing. At the same time, the feeding assembly can drive the end cap closer to or away from the housing, thereby achieving the snap-fit ​​between the housing and the end cap.

[0051] In some embodiments, the feeding assembly includes a second mounting member and a second adsorption member fixed to the second mounting member, the second adsorption member being used to adsorb the end cap.

[0052] In this way, the end cap can be effectively fixed on the second adsorption component, thereby preventing the end cap from shifting relative to the feeding assembly, and thus allowing the end cap to be precisely positioned before it is fastened to the housing.

[0053] In some embodiments, the feeding assembly further includes a positioning drive component connected to the second mounting member, the positioning drive component being used to drive the second mounting member closer to or away from the end cap.

[0054] Thus, the positioning drive assembly allows the second mounting piece to move closer to or further away from the end cap, so that the end cap can be attracted or released.

[0055] In some embodiments, the cleaning device further includes a flipping drive component connected to the feeding assembly, the flipping drive component being used to drive the feeding assembly to rotate so that the surface of the end cap that closes into the housing faces the housing.

[0056] In this way, the flipping drive component can drive the feeding assembly to rotate, thereby causing the end cap to rotate, and thus positioning the end cap and the housing in the direction of rotation.

[0057] In some embodiments, the cleaning device further includes a push-drive component connected to the feeding assembly, the push-drive component being used to push the end cap portion into the housing when the surface of the end cap that is closed into the housing is facing the housing.

[0058] Thus, the push-drive component allows the end cap and housing to be pre-assembled before being laser cleaned.

[0059] In some embodiments, the material includes a battery cell, the battery cell including an electrode assembly, the electrode assembly being at least partially housed within the housing and connected to the end cap via tabs, and the cleaning device including a shaping assembly for bending the tabs into a predetermined state when the end cap is flipped relative to the housing.

[0060] Thus, the end cap and the housing can be connected by a tab. Furthermore, the shaping component can bend the tab into a predetermined state so that the tab is folded into the housing.

[0061] In some embodiments, the shaping assembly includes a pressing member and a pressing drive member connected to the pressing member, the pressing drive member being used to drive the pressing member toward or away from the electrode assembly, and when the pressing member is close to the electrode assembly, the pressing member is used to press against the pre-bend of the electrode tab during the bending process of the tab.

[0062] Thus, the pressing drive component can drive the pressing member to approach or move away from the electrode assembly, so that the pressing member presses against the pre-bent part of the tab, thereby bending the tab connected to the electrode assembly, and then allowing the tab to be folded into the housing.

[0063] In some embodiments, the laser assembly includes a laser head and a moving component, the laser head being mounted on the moving component, and the moving component being capable of moving the laser head.

[0064] In this way, the movement of the laser head allows the pre-welded areas of the end caps and housing, as well as the surrounding areas, to be thoroughly cleaned.

[0065] In some embodiments, the cleaning device further includes a lid-closing drive component connected to the second fixing member, the lid-closing drive component being used to drive the second fixing member closer to or away from the first fixing member.

[0066] Thus, the closing drive component is used to drive the second fixing member closer to or away from the first fixing member, so that the end cap and the housing can be fully assembled together after cleaning.

[0067] Secondly, this application provides a production system including the cleaning device in the above embodiments. The production system further includes a welding device located downstream of the cleaning device for welding the housing and the end cap.

[0068] Thus, after cleaning, the shell and end cap can be welded together, and because there is no dirt during welding, the welding yield is high.

[0069] Thirdly, this application provides a cleaning method for cleaning materials, the materials including a housing and an end cap. The cleaning method includes: fixing the housing; fixing the end cap, wherein the end cap partially fits into the housing; and cleaning the housing and the end cap using a laser.

[0070] In this way, the housing and end caps can be effectively cleaned by the laser cleaning device while fixed in place.

[0071] In some embodiments, the cleaning method further includes pushing the end cap toward the housing so that the end cap partially closes into the housing.

[0072] In this way, the housing and end caps can be partially assembled together before cleaning.

[0073] In some embodiments, the cleaning method further includes: closing the end cap into the housing with the surface facing the housing.

[0074] In this way, the end cap can be assembled with the housing by flipping it over.

[0075] In some embodiments, the material includes an electrode assembly at least partially housed within the housing and connected to the end cap via an electrode tab; closing the end cap into the housing with the surface facing the housing includes: pressing a pre-bent portion of the electrode tab with a pressing member; and when the pressing member presses the pre-bent portion, closing the end cap into the housing with the surface facing the housing.

[0076] In this way, the pressing element presses against the pre-bent part of the tab, so that the tab connected to the electrode assembly can be bent, and thus the tab can be folded into the housing.

[0077] In some embodiments, pushing the end cap toward the housing to partially engage the end cap with the housing includes: placing a retaining member between the end cap and the housing; and pushing the end cap to abut against the retaining member to partially engage the end cap with the housing.

[0078] Thus, by placing the limiting member between the end cap and the housing, and pushing the end cap to abut against the limiting member so that the end cap part is closed into the housing, the depth of the end cap being closed into the housing can be adjusted to reserve a laser cleaning area before welding.

[0079] In some embodiments, the laser cleaning of the housing and the end cap includes: rotating the housing and the end cap synchronously; and emitting a laser beam toward the housing and the end cap to clean them.

[0080] In this way, the synchronous rotation of the housing and end cap can prevent relative displacement and damage after the housing and end cap are assembled. Using laser to clean the housing and end cap can clean dirt with strong adhesion on the surface of the housing and end cap, resulting in better cleaning effect.

[0081] In some embodiments, the cleaning method further includes: introducing gas into the housing through the liquid inlet of the end cap.

[0082] In this way, by introducing gas into the housing, a positive pressure can be created inside the housing, making the internal pressure of the housing greater than the external pressure. This effectively prevents dirt generated during the laser cleaning process or cleaned from the surface of the housing and end cap from entering the housing, thereby avoiding potential safety hazards to the materials.

[0083] In some embodiments, the cleaning method further includes absorbing contaminants around the housing while cleaning the housing and the end cap.

[0084] In this way, absorbing contaminants around the casing can prevent dirt from reaching the welding area during or after cleaning due to the external environment, thus preventing poor welding.

[0085] In some embodiments, the cleaning method further includes: after cleaning the housing and the end cap, fully closing the end cap into the housing.

[0086] In this way, the end cap can be completely closed into the housing after cleaning, so that the connection between the end cap and the housing can be welded later.

[0087] Fourthly, this application provides a battery that is manufactured using the cleaning method described in the above embodiments.

[0088] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0089] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0090] Figure 1 This is a schematic diagram of the structure of a cleaning device according to some embodiments of this application;

[0091] Figure 2This is a schematic diagram of the structure of a cleaning device according to some embodiments of this application;

[0092] Figure 3 This is an exploded view of a cleaning apparatus according to some embodiments of this application;

[0093] Figure 4 This is a schematic diagram of the structure of the housing being clamped on the clamping member according to some embodiments of this application;

[0094] Figure 5 This is a partial structural schematic diagram of a cleaning device according to some embodiments of this application;

[0095] Figure 6 This is a partial structural schematic diagram of a cleaning device according to some embodiments of this application;

[0096] Figure 7 This is a partial structural disassembly diagram of the cleaning device according to some embodiments of this application;

[0097] Figure 8 This is a schematic diagram illustrating the limiting member limiting material in some embodiments of this application;

[0098] Figure 9 This is a partial structural schematic diagram of a cleaning device according to some embodiments of this application;

[0099] Figure 10 This is a partial structural diagram of the cleaning apparatus and materials according to some embodiments of this application;

[0100] Figure 11 This is a schematic diagram of the structure of the second pneumatic component in some embodiments of this application;

[0101] Figure 12 This is a schematic diagram of the tabs of a battery cell in some embodiments of this application before they are folded;

[0102] Figure 13 This is a schematic diagram of a production system according to some embodiments of this application;

[0103] Figure 14 This is a schematic diagram of the state process of some embodiments of this application;

[0104] Figure 15 This is a schematic flowchart of a cleaning method according to some embodiments of this application;

[0105] Figure 16 This is a schematic flowchart of a cleaning method according to some embodiments of this application;

[0106] Figure 17 This is a schematic diagram of the state process of some embodiments of this application;

[0107] Figure 18This is a schematic flowchart of a cleaning method according to some embodiments of this application;

[0108] Figure 19 This is a schematic flowchart of a cleaning method according to some embodiments of this application;

[0109] Figure 20 This is a schematic diagram of the tabs of a battery cell in some embodiments of this application after being folded;

[0110] Figure 21 This is a schematic flowchart of a cleaning method according to some embodiments of this application;

[0111] Figure 22 This is a schematic flowchart of a cleaning method according to some embodiments of this application;

[0112] Figure 23 This is a schematic flowchart of a cleaning method according to some embodiments of this application;

[0113] Figure 24 This is a schematic flowchart of a cleaning method according to some embodiments of this application;

[0114] Figure 25 This is a schematic diagram of the state process of some embodiments of this application;

[0115] Figure 26 This is a schematic flowchart of a cleaning method according to some embodiments of this application;

[0116] Figure 27 This is a schematic diagram of the battery structure according to some embodiments of this application.

[0117] The reference numerals in the detailed embodiments are as follows:

[0118] Cleaning device 100; material 200; housing 210; end cap 220; first fixing member 10; second fixing member 20; laser assembly 30; clamping member 11; clamping drive component 40; first mounting member 21; first adsorption member 22; protective shell 50; rotation drive component 60; first drive sub-component 61; second drive sub-component 62; first bracket 70; rotation component 80; second bracket 90; limiting member 101; guide member 102; guide channel 1021; first part 1022; second part 1023; guide drive component 103; first pneumatic component 104 ; Injection port 221; Second air pressure component 105; Suction component 1051; First suction channel 10511; Second suction channel 12; Feeding component 106; Second mounting component 1061; Second suction component 1062; Positioning drive component 1063; Tilting drive component 107; Push drive component 108; Electrode assembly 230; Electrode tab 2301; Shaping component 109; Pressing component 1091; Pressing drive component 1092; Laser head 31; Moving component 32; Closing drive component 110; Production system 1000; Welding device 300; Battery 400. Detailed Implementation

[0119] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0120] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0121] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0122] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0123] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0124] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0125] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0126] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0127] Currently, judging from market trends, battery applications are becoming increasingly widespread. Batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of battery applications, market demand is also constantly increasing.

[0128] The inventors have noticed that poor welding, such as incomplete soldering, is prone to occur during the assembly of materials used in battery production, thereby increasing production and manufacturing costs. Furthermore, if defective products enter the market, they can lead to safety incidents. Taking battery cells as an example, specifically, the manufacturing process of battery cells requires assembling the end caps, electrode assemblies, and housing. Specifically, the end caps need to be welded to the housing of the electrode assemblies. However, the end caps, electrode assemblies, and housing are produced on different production lines, so they must be cleaned before welding to prevent defects caused by contamination on their surfaces during assembly.

[0129] To avoid welding defects, the inventors discovered that the surfaces of the electrode assembly, housing, and end caps can be physically cleaned using cleaning tools such as brushes before welding. For example, the surfaces of the electrode assembly, housing, and the upper surface of the end cap can be physically cleaned using brushes before the electrode assembly is installed into the housing. However, this method only allows for individual cleaning of the electrode assembly, housing, and end cap before the end cap is sealed into the housing, and it cannot effectively remove scratches from the electrode assembly during installation or contamination introduced during the welding process between the housing and end cap. Furthermore, brushes and similar cleaning tools only provide simple physical cleaning and cannot effectively remove strongly adhering contaminants such as adhesives and oil stains, failing to completely resolve welding defects in the housing and end caps caused by contamination.

[0130] Based on the above considerations, in order to solve the problem of poor welding between the shell and end cap of the electrode assembly, the inventors, after in-depth research, designed a cleaning device. When the shell and end cap of the electrode assembly are partially closed, a laser is used to clean the welding position and surrounding area of ​​the shell and end cap. This allows the dirt that has accumulated in the welding area of ​​the shell and end cap of the electrode assembly during the manufacturing process to be cleaned quickly and efficiently, thereby effectively solving the problem of poor welding between the shell and end cap of the electrode assembly.

[0131] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the cleaning device 100 according to some embodiments of this application. Figure 2 This is a schematic diagram of the structure of a cleaning device 100 according to some embodiments of this application. The cleaning device 100 disclosed in the embodiments of this application can be used for batteries (such as...) Figure 27 The cleaning device 100 can also be used for the production and manufacture of other similar structures, such as consumer electronics, household appliances, and watches.

[0132] According to some embodiments of this application, a cleaning device 100 is provided for cleaning material 200, the material 200 including a housing 210 and an end cap 220 (e.g., ...). Figure 8 (As shown). The cleaning device 100 includes a first fixing member 10, a second fixing member 20, and a laser assembly 30. The first fixing member 10 is used to fix the housing 210; the second fixing member 20 is disposed opposite to the first fixing member 10 and is used to fix the end cap 220; the laser assembly 30 is disposed on one side of the first fixing member 10 and the second fixing member 20, and is used to clean the housing 210 and the end cap 220 when the end cap 220 is partially closed into the housing 210.

[0133] Specifically, the cleaning device 100 is a device that uses a laser component 30 as a cleaning tool, and the cleaning device 100 can perform all-round cleaning of the object being cleaned. The material 200 can be, for example, a battery cell or a battery pack; this application does not limit the specific type of material 200. The material 200 may include an end cap 220, a housing 210, and an electrode assembly 230 (e.g., ...). Figure 12 Other functional components. Material 200 can be cylindrical, flat, cuboid or other shapes, that is, after the end cap 220 and the shell 210 of material 200 are assembled, they can be cylindrical, flat, cuboid or other shapes.

[0134] End cap 220 refers to a component that covers the opening of housing 210 to isolate the internal environment of material 200 from the external environment. The shape of end cap 220 can be adapted to the shape of housing 210 to fit it. Optionally, end cap 220 can be made of a material with certain hardness and strength (such as aluminum alloy), so that end cap 220 is less prone to deformation under compression and impact, giving material 200 higher structural strength and improving safety performance. The material of end cap 220 can also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and this application embodiment does not impose any special limitations on this.

[0135] The housing 210 is an assembly used to cooperate with the end cap 220 to form an internal environment for the material 200, wherein the formed internal environment can accommodate the electrode assembly 230 and other components. The housing 210 and the end cap 220 can be independent components. An opening can be provided on the housing 210, and the end cap 220 closes the opening to form the internal environment for the material 200. The housing 210 can have various shapes and sizes, such as cuboid, cylindrical, hexagonal prism, etc. Specifically, the shape of the housing 210 can be determined according to the specific shape and size of the electrode assembly 230. The material of the housing 210 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and this application embodiment does not impose any special limitations on this.

[0136] The first fixing member 10 can be a component of the housing 210 used to fix the material 200. The first fixing member 10 can be used to fix the housing 210 of various shapes. When the housing 210 is fixed to the first fixing member 10, it will not shake. In other words, the first fixing member 10 can restrict all degrees of freedom of the housing 210. The first fixing member 10 can restrict the displacement of the housing 210 relative to the first fixing member 10. The housing 210 can move synchronously with the first fixing member 10.

[0137] The second fixing member 20 can be a component used to fix the end cap 220. The second fixing member 20 can be used to fix the end cap 220 of various shapes. When the end cap 220 is fixed to the second fixing member 20, it will not wobble. In other words, the second fixing member 20 can restrict all degrees of freedom of the end cap 220. The second fixing member 20 can restrict the displacement of the end cap 220 relative to the second fixing member 20. The end cap 220 can move synchronously with the second fixing member 20. The second fixing member 20 can be arranged opposite to the first fixing member 10 to avoid interference with the first fixing member 10. At the same time, it is beneficial to pre-position the end cap 220 and the housing 210 during assembly.

[0138] The laser assembly 30 may include any type of laser, which may be commercially available or custom-made; this application does not limit this. The laser assembly 30 may be disposed on one side of the first fixing member 10 and the second fixing member 20 to avoid interference with the first fixing member 10 and the second fixing member 20, and to facilitate cleaning of the housing 210 and the end cap 220. Furthermore, before welding, the laser assembly 30 may thoroughly clean the welding area of ​​the housing 210 and the end cap 220, including but not limited to removing oil stains, dust, and adhesive residues from the area.

[0139] The end cap 220 is fully closed into the housing 210 after the end cap 220 and housing 210 have been laser cleaned. The end cap 220 is pushed into the housing 210 and held against the opening of the housing 210. "Partially closed" means that the end cap 220 is not fully closed into the housing 210, but is in a state at a certain moment when the end cap 220 is pushed into the housing 210.

[0140] In the cleaning device 100 of this application embodiment, the housing 210 of the material 200 is fixed by a first fixing member 10, and the end cap 220 is fixed by a second fixing member 20. Simultaneously, the laser assembly 30 is disposed on one side of the first fixing member 10 and the second fixing member 20. This design allows for pre-welding cleaning of the material 200, effectively preventing dirt generated during the assembly of the housing 210 and end cap 220 from entering the interior of the housing 210, and effectively preventing dust generated during laser cleaning from entering the interior of the material 200. This effectively solves the contamination defects during the welding of the housing 210 and end cap 220, thereby improving the welding yield of the housing 210 and end cap 220.

[0141] According to some embodiments of this application, optionally, please continue to refer to Figure 1 and Figure 4 , Figure 4 This is a schematic diagram of the structure of a housing 210 clamped on a clamping member 11 according to some embodiments of this application. The first fixing member 10 includes a plurality of clamping members 11, which together clamp the housing 210.

[0142] Specifically, multiple clamping members 11 can be used to clamp housings 210 of various shapes, and the multiple clamping members 11 can stably fix the housing 210 between the clamping members 11. Furthermore, the multiple clamping members 11 can clamp the outer surface of the housing 210, and the clamping members 11 can be provided with materials such as sponge to increase friction, or the roughness of the connection between the clamping members 11 and the housing 210 can be increased, so that the clamping members 11 and the housing 210 do not displace or flip in any direction.

[0143] Thus, by providing the clamping member 11, the housing 210 can be moved smoothly during cleaning.

[0144] Of course, in other embodiments, the first fixing member 10 can fix the housing 210 by means of adsorption or the like. This application does not limit the way the first fixing member 10 fixes the housing 210.

[0145] According to some embodiments of this application, optionally, please continue to refer to Figure 1 and Figure 4 , Figure 4 This is a schematic diagram of the structure of a housing 210 clamped on a clamping member 11 according to some embodiments of this application. Multiple clamping members 11 are arranged circumferentially along the housing 210.

[0146] The circumferential direction of the housing 210 can be the direction surrounding the length center axis of the housing 210. In the circumferential direction of the housing 210, the housing 210 has a large surface area on its outline, making it easy to be clamped by the clamping members 11 without wobbling. Multiple clamping members 11 can be arranged arbitrarily at any interval along the circumferential direction of the housing 210, or they can be arranged at a fixed interval. When multiple clamping members 11 are arranged at a fixed interval along the circumferential direction of the housing 210, the housing 210 can be stably clamped using the minimum number of clamping members 11, thereby saving production and manufacturing costs.

[0147] Thus, when multiple clamping parts 11 are arranged around the circumference of the housing 210, the clamping area of ​​the housing 210 is larger, and the housing 210 can be clamped more stably, which is beneficial for subsequent assembly.

[0148] According to some embodiments of this application, optionally, please continue to refer to Figure 1 and Figure 5 , Figure 5 This is a partial structural schematic diagram of a cleaning device 100 according to some embodiments of this application. The clamping drive component 40 drives a plurality of clamping members 11 to move closer or further apart from each other.

[0149] Specifically, the clamping drive component 40 can be a device that drives the clamping members 11. The clamping drive component 40 can be a motor or a cylinder, etc., and this application is not limited thereto, as long as it can drive multiple clamping members 11 to move closer or further apart. Furthermore, the clamping drive component 40 can drive the clamping members 11 to move closer or further apart, so that the clamping members 11 can be compatible with housings 210 of different shapes, and facilitates the disassembly of the housing 210 after clamping. For example, when the radial dimension of the housing 210 is small, the clamping drive component 40 can drive multiple clamping members 11 to move closer together; when the radial dimension of the housing 210 is large, the clamping drive component 40 can drive multiple clamping members 11 to move further apart. The clamping drive component 40 may include, for example, a cylinder component.

[0150] Thus, the clamping drive component 40 can control the clamping member 11 to clamp the housing 210 with different contours, making the design of the clamping member 11 versatile.

[0151] According to some embodiments of this application, optionally, please continue to refer to Figure 1 , Figure 5 and Figure 6 , Figure 6 This is a partial structural schematic diagram of a cleaning device 100 according to some embodiments of this application. The second fixing member 20 includes a first mounting member 21 and a first adsorption member 22 fixed on the first mounting member 21. The first adsorption member 22 is used to adsorb the end cap 220.

[0152] Specifically, the first mounting component 21 can be a component for mounting the first adsorption component 22. The first mounting component 21 restricts all degrees of freedom of the first adsorption component 22, and the first adsorption component 22 can move with the first mounting component 21. The first adsorption component 22 can adsorb the end cap 220 and restrict all degrees of freedom of the end cap 220. The first adsorption component 22 can stably adsorb the end cap 220 so that the end cap 220 will not fall off during assembly.

[0153] The first adsorption element 22 can be a component with various structural forms, such as a component that uses gas adsorption or a component that uses magnetic adsorption.

[0154] Optionally, the first mounting component 21 can push the end cap 220 to fully engage with the housing 210 after cleaning is completed.

[0155] Of course, in other embodiments, the second fastener 20 can fix the end cap 220 by clamping or other means.

[0156] In this way, the end cap 220 can be adsorbed onto the first adsorption member 22, so that the end cap 220 can be stably fixed, thereby ensuring the cleaning effect.

[0157] According to some embodiments of this application, optionally, please continue to refer to Figure 1 and Figure 6 The cleaning device 100 also includes a protective shell 50 disposed on the first mounting member 21, the first adsorption member 22 being located in the protective shell 50, and the protective shell 50 being used to cover at least a portion of the outer surface of the end cap 220.

[0158] Specifically, the protective shell 50 can be a shell used to shield the laser. The material of the protective shell 50 can be made so that it will not be melted by the laser emitted by the laser component 30. The protective shell 50 can prevent the laser from shining directly on the non-welded area of ​​the end cover 220 during cleaning, thus avoiding damage to the components on the end cover 220.

[0159] The first adsorption member 22 can be disposed inside the protective shell 50, and the first adsorption member 22 can be connected to the protective shell 50 by any form of connection method, which is not limited in the embodiments of this application. "At least part of the outer surface of the end cap 220" refers to the non-welded area of ​​the end cap 220.

[0160] Thus, the first adsorption element 22 can prevent the end cap 220 from shaking during the cleaning process, and the protective shell 50 can prevent the end cap 220 from being damaged by the laser.

[0161] According to some embodiments of this application, optionally, please continue to refer to Figure 1 , Figure 5 and Figure 6The cleaning device 100 also includes a rotation drive component 60, which is used to drive the first fixing member 10 and the second fixing member 20 to rotate, or to drive the laser assembly 30 to rotate.

[0162] Specifically, the rotation drive component 60 may be a component that drives the first fixing member 10, the second fixing member 20, or the laser assembly 30 to rotate. Alternatively, in some embodiments, the rotation drive component 60 may drive the first fixing member 10 and the second fixing member 20 to rotate. In other embodiments, the rotation drive component 60 may drive the laser assembly 30 to rotate.

[0163] The rotation drive component 60 can drive the first fixing member 10, the second fixing member 20, or the laser assembly 30 to rotate in any direction, such as axial rotation or radial rotation. The rotation drive component 60 may include components of a motor, or in other words, the rotation drive component 60 can drive the first fixing member 10, the second fixing member 20, or the laser assembly 30 to rotate via a motor. The rotation of the first fixing member 10 and the second fixing member 20 can be either the first fixing member 10 being active and the second fixing member 20 being passive, or the second fixing member 20 being active and the first fixing member 10 being passive, or the first fixing member 10 and the second fixing member 20 rotating simultaneously. This embodiment of the application does not limit this.

[0164] Thus, the rotation drive component 60 allows the end cap 220 and housing 210 to be cleaned from all directions.

[0165] According to some embodiments of this application, optionally, please continue to refer to Figure 7 and Figure 6 , Figure 7 This is a partial structural disassembly diagram of the cleaning device 100 according to some embodiments of this application. The rotation drive component 60 includes a first drive sub-component 61 and a second drive sub-component 62. The first drive sub-component 61 is used to drive the first fixed member 10 to rotate, and the second drive sub-component 62 is used to drive the second fixed member 20 to rotate.

[0166] Specifically, the first driving component 61 can be a component that drives the first fixed member 10 to rotate, and the second driving component 62 can be a component that drives the second fixed member 20 to rotate. The first driving component 61 can drive the first fixed member 10 to rotate in any direction, such as axial translation, radial translation, and flipping, thereby driving the housing 210 to rotate in any direction. The second driving component 62 can drive the second fixed member 20 to rotate in any direction, such as axial flipping and radial flipping, thereby driving the end cover 220 to rotate in any direction.

[0167] The first drive component 61 and the second drive component 62 include, for example, components of a motor, or in other words, the first fixing component 10 and the second fixing component 20 can be rotated by a motor drive.

[0168] Thus, the first driving component 61 and the second driving component 62 can drive the first fixing component 10 and the second fixing component 20 to rotate respectively, which is beneficial to the rotation control of the first fixing component 10 and the second fixing component 20, and realizes all-round cleaning of the housing 210 and the end cover 220.

[0169] According to some embodiments of this application, optionally, please continue to refer to Figure 1 The first fixing member 10 and the second fixing member 20 rotate synchronously.

[0170] Specifically, the rotation direction and rotation angle of the first fixing member 10 and the second fixing member 20 can be the same. For example, when the first fixing member 10 rotates 45 degrees clockwise, the second fixing member 20 simultaneously rotates 45 degrees clockwise. It should be noted that the above angles are merely illustrative and should not be considered as a limitation on the embodiments of this application. In this way, the housing 210 and the end cap 220 can be pre-positioned during assembly, avoiding interference during assembly.

[0171] Thus, by using the first fixing member 10 and the second fixing member 20, the housing 210 and the end cap 220 will not deform when being cleaned, and the first fixing member 10 and the second fixing member 20 can be cleaned simultaneously, thereby improving cleaning efficiency.

[0172] According to some embodiments of this application, optionally, please continue to refer to 1, the cleaning device 100 includes a first bracket 70 and a rotating component 80. The rotating component 80 is rotatably disposed on the first bracket 70, and a first fixing member 10 is mounted on the rotating component 80. A first driving sub-component 61 is used to drive the rotating component 80 to rotate, so as to drive the first fixing member 10 to rotate.

[0173] Specifically, the first bracket 70 can be a component for mounting the rotating part 80, and the first bracket 70 can be made of a high-strength material. The first bracket 70 can be configured with a corresponding structure according to the mounting structure of the rotating part 80, and this application does not limit the specific structure of the first bracket 70. The rotating part 80 can be a component capable of rotating around its own axis. The rotating part 80 can be rotatably connected to the first bracket 70 through connecting parts such as bearings. The first fixing member 10 can be connected to the rotating part 80 by bolts, and the specific installation method of the first fixing member 10 and the rotating part 80 is not limited in this application. The first driving sub-component 61 can drive the rotating part 80 to rotate in any direction, such as axial rotation, radial rotation, etc., to drive the first fixing member 10 to rotate, thereby driving the housing 210 to rotate. The first driving sub-component 61 and the driving rotating part 80 can be driven by gear transmission, or by belt transmission, worm gear transmission, etc., and this application does not limit them here, as long as the first driving sub-component 61 can drive the rotating part 80 to rotate in any direction.

[0174] Thus, the first driving component 61 drives the rotating component 80 to rotate, which in turn drives the first fixed component 10 to rotate, thereby allowing the housing 210 to rotate during laser cleaning.

[0175] According to some embodiments of this application, optionally, please continue to refer to Figure 1 and Figure 7 The first drive component 61 is located on the side of the first fixing component 10 that is away from the second fixing component 20.

[0176] Specifically, the first driving component 61 is positioned close to the first fixed component 10. This arrangement results in a shorter lever arm when driving the first fixed component 10 to rotate, thus enabling more stable torque transmission. Simultaneously, the first driving component 61 does not occupy space on one side of the second fixed component 20, leading to a more rational structural design.

[0177] Thus, the first driving component 61 can drive the first fixing component 10 to rotate stably, and the first driving component 61 and the second fixing component 20 will not interfere with each other.

[0178] According to some embodiments of this application, optionally, please continue to refer to Figure 1 and Figure 3 The cleaning device 100 includes a second bracket 90, and a second fixing member 20 is rotatably connected to the second bracket 90. The second bracket 90 may be a component for mounting the second fixing member 20, and the second bracket 90 may be made of a high-strength material. The second bracket 90 can be configured with a corresponding structure according to the mounting structure of the second fixing member 20, and this application does not limit the specific structure of the second bracket 90.

[0179] Specifically, the second bracket 90 can be a component for mounting the second fixing member 20. The second bracket 90 and the second fixing member 20 can be rotatably connected by means of gears or bearings. The embodiments of this application do not limit the specific mounting method of the second bracket 90 and the second fixing member 20. The second fixing member 20 can rotate relative to the second bracket 90 in any direction, such as axial rotation, radial rotation, etc.

[0180] Thus, the second bracket 90 can be used to mount the second fixing member 20, and the second fixing member 20 can rotate in any direction, thereby allowing the end cap 220 to rotate in any direction.

[0181] According to some embodiments of this application, optionally, please continue to refer to Figure 1 and Figure 8 , Figure 8 This is a schematic diagram of a limiting member 101 limiting material 200 in some embodiments of this application. The cleaning device 100 includes a limiting member 101, which is disposed between the end cap 220 and the housing 210 when the end cap 220 is closed into the housing 210, and is used to limit the depth of the end cap 220 closed into the housing 210.

[0182] Optionally, the limiting member 101 can be a part that can limit the depth of the end cap 220 entering the housing 210. The limiting member 101 can be made of a material with deformation resistance. When the limiting member 101 abuts against the end cap 220 and the housing 210, the limiting member 101 will not deform, thus ensuring the limiting accuracy of the limiting member 101.

[0183] When the end cap 220 is closed into the housing 210, the limiting member 101 can be disposed between the end cap 220 and the housing 210. Furthermore, the limiting member 101 can separate the welding areas of the end cap 220 and the housing 210. "The depth of the end cap 220 being closed into the housing 210" refers to the distance between the end cap 220 and the housing 210 during assembly, and this distance can be limited by the width of the limiting member 101.

[0184] Thus, by placing the limiting member 101 between the end cap 220 and the housing 210, the depth of the end cap 220 entering the housing 210 can be limited, and the depth of the end cap 220 entering the housing 210 can be adjusted by adjusting the width of the limiting member 101.

[0185] According to some embodiments of this application, optionally, please continue to refer to Figure 8 The cleaning device 100 includes a guide 102 and a limiting member 101 disposed on the guide 102. The guide 102 is used to guide the end cap 220 to partially fit into the housing 210.

[0186] Specifically, the guide member 102 can be a component used to guide the movement of the end cap 220. The guide member 102 can be pushed forward when the housing 210 and the end cap 220 begin to approach each other. When the end cap 220 is partially closed into the housing 210, the limiting member 101 provided on the guide member 102 is used to limit the housing 210 and the end cap 220 from continuing to close. At this time, the housing 210 and the end cap 220 stop closing. The guide member 102 drives the limiting member 101 away from the housing 210 and the end cap 220, and the surfaces of the end cap 220 and the housing 210 then present the area to be cleaned. The limiting member 101 can be connected to the guide member 102 by bolt connection. The specific installation method of the limiting member 101 and the guide member 102 is not limited in this application embodiment.

[0187] Optionally, the guide 102 can be configured as a two-part component, which can abut against the limiting member 101 in the thickness direction.

[0188] Thus, the end cap 220 is partially inserted into the housing 210.

[0189] According to some embodiments of this application, optionally, please continue to refer to Figure 8 and Figure 9 , Figure 9 This is a partial structural schematic diagram of a cleaning device 100 according to some embodiments of this application. The guide member 102 has a guide channel 1021, which is used to guide the end cap 220 into the housing 210. The limiting member 101 is disposed in the guide channel 1021.

[0190] Specifically, the guide channel 1021 has a certain width and depth. The guide channel 1021 can fix the position of the limiting member 101, thereby guiding the distance of the end cover 220 into the housing 210.

[0191] Thus, through the guide channel 1021 on the guide member 102, the end cap 220 can be closed into the housing 210 in a predetermined direction, preventing the end cap 220 from shaking during the process of closing into the housing 210, and ensuring that the end cap 220 can be aligned with the housing 210 so that the end cap 220 can be quickly closed into the housing 210.

[0192] According to some embodiments of this application, optionally, please continue to refer to Figure 9 The guide 102 includes a first portion 1022 and a second portion 1023 spaced apart from the first portion 1022. The first portion 1022 and the second portion 1023 together define the guide channel 1021.

[0193] Specifically, the first part 1022 and the second part 1023 can be components on the guide member 102 for direct contact with the limiting member 101. A certain distance should be provided between the first part 1022 and the second part 1023. By adjusting this distance, the guide member 102 can be matched with limiting members 101 of different thicknesses, thereby adjusting the width of the end cap 220 fitting into the housing 210. A guide channel 1021 can be formed between the first part 1022 and the second part 1023. In other words, the gap between the first part 1022 and the second part 1023 is the guide channel 1021. The size of the guide channel 1021 can be changed by moving the first part 1022 and the second part 1023 away from each other or closer together.

[0194] Thus, the spacing between the first part 1022 and the second part 1023 allows the width of the guide channel 1021 to be adjustable, thereby adapting to end caps 220 and housings 210 of different sizes and improving the applicability of the guide 102.

[0195] According to some embodiments of this application, optionally, please continue to refer to Figure 9 The cleaning device 100 includes a guide drive component 103 for driving the guide 102 toward or away from the end cap 220.

[0196] Specifically, the guide drive component 103 can be a component used to drive the guide member 102 to move closer to or further away from the end cover 220. The guide drive component 103 can drive the guide member 102 to move in any direction, and the guide member 102 can be fixed to the guide drive component 103 by bolt connection. This application embodiment does not limit the connection method between the guide member 102 and the bolt connection, nor does it limit the specific installation method of the second bracket 90 and the second fixing member 20. The guide drive component 103 may include components such as cylinders or lead screw motors.

[0197] Thus, the guide drive component 103 drives the guide member 102 to approach or move away from the end cap 220, thereby limiting the end cap 220 and the housing 210 before cleaning, and after the limiting is completed, the guide member 102 separates from the end cap 220 and the housing 210 for subsequent laser cleaning.

[0198] According to some embodiments of this application, optionally, please continue to refer to Figure 6 , Figure 8 and Figure 10 , Figure 10 This is a partial structural schematic diagram of a cleaning device 100 and a material 200 according to some embodiments of this application. The cleaning device 100 includes a first pneumatic component 104, which is used to introduce gas into the housing 210 through the liquid injection port 221 of the end cap 220.

[0199] Specifically, the first air pressure component 104 can be a component for increasing local air pressure, which can create positive pressure inside the chamber structure. The end cap 220 can include a liquid injection port 221, which can be a through hole penetrating the thickness direction of the end cap 220. The first air pressure component 104 can communicate with the inside of the housing 210 through the liquid injection port 221. Furthermore, when the end cap 220 is partially closed into the housing 210, the first air pressure component 104 can extend into the inside of the housing 210 through the liquid injection port 221 and introduce air. It can be understood that when the end cap 220 is partially closed into the housing 210, a chamber can be formed between the end cap 220 and the housing 210. At this time, the first air pressure component 104 can introduce air into the chamber, which can create positive pressure inside the chamber relative to the outside of the chamber.

[0200] In this way, by injecting gas into the housing 210, a positive pressure can be formed inside the housing 210, making the internal pressure of the housing 210 greater than the external pressure. This effectively prevents dirt generated during the laser cleaning process or cleaned from the surfaces of the housing 210 and end cap 220 from entering the housing 210, thereby avoiding safety hazards to the material 200.

[0201] According to some embodiments of this application, optionally, please continue to refer to Figure 8 and Figure 11 , Figure 11 This is a schematic diagram of the structure of the second pneumatic component 105 in some embodiments of this application. The cleaning device 100 includes the second pneumatic component 105, which is used to adsorb contaminants formed by the laser assembly 30 during operation.

[0202] Specifically, the second pneumatic component 105 can be a component that creates negative pressure around itself. The second pneumatic component 105 can be disposed near the welding area of ​​the housing 210 and the end cap 220. The second pneumatic component 105 can be turned on before the laser assembly 30 starts cleaning, or it can be turned on during the cleaning of the laser assembly 30 (i.e., during operation), or it can be turned on after the laser assembly 30 has been cleaned but before the housing 210 and the end cap 220 have been fully closed. The embodiments of this application do not limit this.

[0203] Thus, dirt generated during laser cleaning or cleaned from the surfaces of housing 210 and end cap 220 can be adsorbed by the second pneumatic component 105.

[0204] According to some embodiments of this application, optionally, please continue to refer to 1 and Figure 11The second pneumatic component 105 includes an inhalation component 1051 surrounding the second fixing member 20. The inhalation component 1051 has a first inhalation channel 10511 with its port facing the housing 210. A negative pressure is formed in the first inhalation channel 10511.

[0205] Specifically, the suction component 1051 can be a component with negative pressure. The suction component 1051 can have various structural forms, such as a ring structure, a frame structure, and a hemispherical structure. The suction component 1051 can partially surround the second fixing member 20, or it can surround the second fixing member 20 in all directions. When the suction component 1051 surrounds the second fixing member 20 in all directions, the suction effect of the suction component 1051 is the best.

[0206] The first suction channel 10511 can be a negative pressure space on the suction member 1051. Dirt on the surface of the housing 210 and end cap 220 or dust generated during the operation of the laser component 30 can be adsorbed into the first suction channel 10511. The port of the first suction channel 10511 can be the opening of the first suction channel 10511. Orienting the port of the first suction channel 10511 toward the housing 210 can make the working efficiency of the first suction channel 10511 higher. It can be understood that the suction member 1051 surrounds the second fixing member 20, that is, the suction member 1051 surrounds the end cap 220, and the port of the first suction channel 10511 faces the housing 210. This allows the suction member 1051 to simultaneously adsorb dirt on the surface of the housing 210 and end cap 220 or dust generated during the operation of the laser component 30. This design also saves space and reduces production costs.

[0207] Thus, by orienting the port of the first suction channel 10511 toward the housing 210, the first suction channel 10511 can effectively adsorb dirt generated during the laser cleaning process or cleaned from the surfaces of the housing 210 and the end cap 220.

[0208] According to some embodiments of this application, optionally, please continue to refer to Figure 1 , Figure 4 and Figure 5 The first fixing member 10 is formed with a second suction channel 12 for facing the end cap 220, and the second air pressure member 105 is used to form a negative pressure in the second suction channel 12.

[0209] Specifically, the second suction channel 12 can be a negative pressure space on the first fixing member 10. The second suction channel 12 can be formed through the first fixing member 10. Orienting the port of the second suction channel 12 toward the housing 210 can make the working efficiency of the first suction channel 10511 higher. The second air pressure component 105 can create a negative pressure in the second suction channel 12 by evacuating air or other means. The embodiments of this application are not limited here.

[0210] Thus, by providing a second suction channel 12 on the first fixing member 10, the second suction channel 12 can effectively adsorb dirt generated during the laser cleaning process or cleaned from the surface of the housing 210 and end cap 220.

[0211] According to some embodiments of this application, optionally, please continue to refer to Figure 3 The cleaning device 100 also includes a loading assembly 106, which is used to fix the end cap 220 when it is separated from the housing 210.

[0212] Specifically, the feeding assembly 106 can be a component for gripping the end cap 220. The feeding assembly 106 can grip the end cap 220 produced from the previous process. The feeding assembly 106 can restrict all displacements of the end cap 220 relative to the feeding assembly 106. The feeding assembly 106 can realize the movement of the end cap 220 in any direction, such as axial flipping, radial flipping, etc. The feeding assembly 106 can fix the end cap 220 when it is separated from the housing 210, or in other words, the feeding assembly 106 can fix the housing 210 when the end cap 220 is not fastened to the housing 210.

[0213] Thus, the end cap 220 can be fixed on the feeding assembly 106, so that the end cap 220 will not fall off when it is separated from the housing 210. At the same time, the feeding assembly 106 can drive the end cap 220 to move closer to or away from the housing 210, thereby achieving the snap-fit ​​between the housing 210 and the end cap 220.

[0214] According to some embodiments of this application, optionally, please continue to refer to Figure 1 and Figure 3 The feeding assembly 106 includes a second mounting member 1061 and a second adsorption member 1062 fixed on the second mounting member 1061. The second adsorption member 1062 is used to adsorb the end cap 220.

[0215] Specifically, the second mounting member 1061 can be a device for installation, such as a bracket, and may include one or more mounting points. The second adsorption member 1062 can be fixedly connected to the second mounting member 1061 by bolts. This application does not limit the specific connection form between the second adsorption member 1062 and the second mounting member 1061. In any case, the second adsorption member 1062 can be a component with various structural forms, such as a gas-adsorption component or a magnetically adsorbed component. The second adsorption member 1062 can stably adsorb the end cap 220, preventing it from falling off during assembly.

[0216] In this way, the end cap 220 can be effectively fixed on the second adsorption member 1062, thereby preventing the end cap 220 from shifting relative to the feeding assembly 106, and thus allowing the end cap 220 to be precisely positioned before it is fastened to the housing 210.

[0217] According to some embodiments of this application, optionally, please continue to refer to Figure 1 and Figure 3 The feeding assembly 106 also includes a positioning drive component 1063 connected to the second mounting component 1061, the positioning drive component 1063 being used to drive the second mounting component 1061 closer to or further away from the end cap 220.

[0218] Specifically, the positioning drive component 1063 can be a component with a driving function. The positioning drive component 1063 can be fixedly connected to the second mounting member 1061 via bolts. This application embodiment does not limit the specific connection method between the positioning drive component 1063 and the second mounting member 1061. The positioning drive component 1063 can drive the second mounting member 1061 to move in multiple directions, such as planar translation. Further, the positioning drive component 1063 can drive the second mounting member 1061 closer to or further away from the end cover 220. The positioning drive component 1063 may include, for example, components of a lead screw motor.

[0219] Thus, the positioning drive component 1063 can bring the second mounting component 1061 closer to or further away from the end cap 220, so that the end cap 220 can be attracted or released.

[0220] According to some embodiments of this application, optionally, please continue to refer to Figure 1 and Figure 3 The cleaning device 100 also includes a flipping drive component 107 connected to the feeding assembly 106. The flipping drive component 107 is used to drive the feeding assembly 106 to rotate so that the surface of the end cap 220 that is inserted into the housing 210 faces the housing 210.

[0221] Specifically, the tilting drive component 107 can be a component with a driving function, which can drive the feeding assembly 106 to rotate in multiple directions, such as radial rotation, axial rotation, etc. The tilting drive component 107 may include motor components, or in other words, the feeding assembly 106 can be rotated by a motor.

[0222] Thus, the flipping drive component 107 can drive the feeding component 106 to rotate, thereby causing the end cover 220 to rotate, and thus positioning the end cover 220 and the housing 210 in the rotation direction.

[0223] According to some embodiments of this application, optionally, please continue to refer to Figure 1 and Figure 3 The cleaning device 100 also includes a push drive component 108 connected to the feeding assembly 106. The push drive component 108 is used to push the end cap 220 partially into the housing 210 when the surface of the end cap 220 that is closed into the housing 210 is facing the housing 210.

[0224] Specifically, the push drive component 108 can be a component with a driving function. The push drive component 108 can be fixedly connected to the feeding assembly 106 by bolt connection. The specific connection method between the push drive component 108 and the feeding assembly 106 is not limited in this application embodiment. The push drive component 108 may include components such as cylinders and lead screw motors. The push drive component 108 can drive the feeding assembly 106 to move toward the housing 210. Furthermore, the push drive component 108 can drive the end cover 220 to move toward the housing 210, so that the end cover 220 is partially closed into the housing 210.

[0225] Thus, the push drive component 108 enables the end cap 220 and housing 210 to be pre-assembled before being laser cleaned.

[0226] According to some embodiments of this application, optionally, please continue to refer to Figure 3 and Figure 12 , Figure 12 This is a schematic diagram of the tab 2301 of a battery cell in some embodiments of this application before it is folded. Material 200 includes a battery cell, the battery cell includes an electrode assembly 230, the electrode assembly 230 is at least partially housed in the housing 210 and connected to the end cap 220 via the tab 2301, and the cleaning device 100 includes a shaping assembly 109 for bending the tab 2301 into a predetermined state when the end cap 220 is flipped relative to the housing 210.

[0227] Specifically, a battery cell refers to a component that makes up a battery (such as...). Figure 27The smallest unit of the electrode assembly 230 may include a tab 2301, which is partially exposed outside the housing 210 during assembly. The shaping assembly 109 may be a metal sheet of a certain thickness, which can support at least a portion of the tab 2301 and fold the tab 2301 around that portion. Further, when the end cap 220 is flipped relative to the housing 210 by the feeding assembly 106, the shaping assembly 109 can bend the tab 2301 into a predetermined state in which it can be completely housed within the housing 210.

[0228] Thus, the end cap 220 and the housing 210 can be connected by the tab 2301. Furthermore, the shaping component 109 can bend the tab 2301 into a predetermined state so that the tab 2301 is folded into the housing 210.

[0229] According to some embodiments of this application, optionally, please continue to refer to Figure 3 and Figure 12 The shaping component 109 includes a pressing member 1091 and a pressing drive member 1092 connected to the pressing member 1091. The pressing drive member 1092 is used to drive the pressing member 1091 to move closer to or away from the electrode assembly 230. When the pressing member 1091 moves closer to the electrode assembly 230, the pressing member 1091 is used to press against the pre-bent part of the tab 2301 during the bending process of the tab 2301.

[0230] Specifically, the pressing member 1091 can be a metal sheet with a certain structural strength. The pressing member 1091 should have a certain thickness, and the part of the pressing member 1091 that contacts the electrode tab 2301 should be rounded to prevent the pressing member 1091 from damaging the electrode tab 2301. The pressing drive component 1092 can be a component with a driving function. The pressing drive component 1092 can be fixedly connected to the pressing member 1091 by bolt connection. The specific connection method between the pressing drive component 1092 and the pressing member 1091 is not limited in the embodiments of this application.

[0231] The pressure drive component 1092 includes components such as cylinders and lead screw motors. The pressure drive component 1092 can drive the pressure member 1091 to approach or move away from the electrode assembly 230. Further, the pressure drive component 1092 can drive the pressure member 1091 to approach or move away from the tab 2301. The pressure drive component 1092 can drive the pressure member 1091 to just contact the tab 2301. At the instant the pressure member 1091 contacts the tab 2301, the pressure drive component 1092 should stop driving the pressure member 1091 to continue moving in that direction. When the tab 2301 is bent into a predetermined state, the pressure drive component 1092 should drive the pressure member 1091 to separate from the tab 2301. Further, the pressure drive component 1092 should drive the pressure member 1091 away from the area between the end cap 220 and the housing 210.

[0232] Thus, the pressing drive component 1092 can drive the pressing member 1091 to approach or move away from the electrode assembly 230, so that the pressing member 1091 presses against the pre-bent part of the tab 2301, thereby allowing the tab 2301 connected to the electrode assembly 230 to be bent, and thus allowing the tab 2301 to be folded into the housing 210.

[0233] According to some embodiments of this application, optionally, please continue to refer to Figure 1 and Figure 3 The laser assembly 30 includes a laser head 31 and a moving part 32. The laser head 31 is mounted on the moving part 32, and the moving part 32 can drive the laser head 31 to move.

[0234] Specifically, the laser head 31 can be commercially available or custom-made; this application does not limit this. The laser head 31 can be an output head and a galvanometer. The moving part 32 can be a movable part; further, the moving part 32 can be a part that moves in multiple directions, such as axial planar movement or radial planar movement. The laser head 31 can be fixedly connected to the moving part 32 by bolts; this application does not limit the specific connection method between the laser head 31 and the moving part 32.

[0235] The moving part 32 can drive the laser head 31 to move. When the moving part 32 drives the laser head 31 to move parallel to the mounting plane of the housing 210 and the end cover 220, it can cooperate with the rotation of the first fixing member 10 and the second fixing member 20 to achieve all-round cleaning of the outer surface of the housing 210 and the end cover 220. When the moving part 32 drives the laser head 31 to approach or move away from the mounting platform of the cleaning device 100 (which can be understood as the mounting base surface of all components), it can adjust the defocusing amount of the laser head 31, thereby optimizing the cleaning effect.

[0236] The moving part 32 can drive the laser head 31 to move in at least one of three perpendicular directions, thereby making the laser head 31 move a wider range.

[0237] Thus, the movement of the laser head 31 allows the pre-welded areas of the end cap 220 and housing 210, as well as their surrounding areas, to be thoroughly cleaned.

[0238] The cover driving component 110 is connected to the second fixing member 20. The cover driving component 110 is used to drive the second fixing member 20 to move closer to or away from the first fixing member 10.

[0239] Specifically, the lid-closing drive component 110 can be a component with a driving function. The lid-closing drive component 110 can be fixedly connected to the second fixing member 20 by bolt connection. The specific connection method of the lid-closing drive component 110 and the second fixing member 20 is not limited in this application embodiment. The lid-closing drive component 110 includes, for example, a cylinder, a lead screw motor, or other components that can drive the second fixing member 20 to move linearly. The lid-closing drive component 110 can drive the second fixing member 20 to move closer to or away from the first fixing member 10, thereby causing the end cap 220 and the housing 210 to move closer to each other.

[0240] Thus, the closing drive component 110 is used to drive the second fixing member 20 closer to or away from the first fixing member 10, so that the end cap 220 and the housing 210 can be fully assembled together after cleaning.

[0241] Please refer to some embodiments of this application. Figure 1 , Figure 8 and Figure 13 , Figure 13 This is a schematic diagram of a production system 1000 according to some embodiments of this application. This application also provides a production system 1000, which includes the cleaning device 100 from the above embodiments. The production system 1000 is used to assemble the aforementioned material 200. The production system 1000 further includes a welding device 300, located downstream of the cleaning device 100, for welding the housing 210 and the end cap 220. Specifically, the welding device 300 can be of various types, such as laser welding, arc welding, and vacuum welding.

[0242] Thus, after cleaning, the housing 210 and the end cap 220 can be welded together, and the welding yield is high because there is no dirt during welding.

[0243] According to some embodiments of this application, a cleaning device 100 is provided, which includes a first fixing member 10, a second fixing member 20, and a laser assembly 30. A housing 210 and an end cap 220 are respectively disposed on the first fixing member 10 and the second fixing member 20, and the laser assembly 30 is disposed in the area facing the first fixing member 10 and the second fixing member 20. The end cap 220 is brought close to the housing 210 by a feeding assembly 106 and is engaged with the housing 210 by multiple driving members. When the end cap 220 and the housing 210 are partially engaged, the laser assembly 30 starts working to perform a comprehensive cleaning of the housing 210 and the end cap 220. A first air pressure component 104 and a second air pressure component 105 are respectively disposed in the areas close to the first fixing member 10 and the second fixing member 20. Using air pressure, the housing 210 and the end cap 220 are cleaned again in a comprehensive manner. Finally, a welding device is used to weld the housing 210 and the end cap 220. This solution effectively improves the welding yield of the housing 210 and the end cap 220, thereby reducing the production cost of the production system.

[0244] In one example of this application, the cleaning process for material 200 is as follows:

[0245] First, the housing 210 is clamped by multiple clamping members 11, and the end cap 220 is adsorbed by the second adsorption member 1062. Then, the flipping drive member 107 drives the second mounting member 1061 to rotate, so that the end cap 220 flips towards the housing 210.

[0246] Then, the push drive component 108 drives the second adsorption member 1062 with the end cap 220 adsorbed, so that the end cap 220 is partially closed into the housing 210.

[0247] Then, the push drive component 108 releases its adsorption on the end cap 220 and resets to a position away from the end cap 220.

[0248] Furthermore, the first pneumatic component 104 introduces gas into the housing 210 through the liquid injection port 221, and the first suction channel 10511 and the second suction channel 12 form a negative pressure;

[0249] Subsequently, the first driving component 61 drives the first fixing component 10 to rotate, thereby causing the housing 210 to rotate, and the second driving component 62 drives the second fixing component 20 to rotate synchronously with the first fixing component 10, so that the housing 210 and the end cap 220 rotate synchronously.

[0250] Then, the laser assembly 30 emits a laser towards the housing 210 and the end cap 220 to clean the housing 210 and the end cap 220;

[0251] Finally, the closing drive component 110 drives the second fixing member 10 to move so as to close the end cover 220 into the housing 210, so that the end cover 220 and the housing 210 are fully engaged.

[0252] Please refer to some embodiments of this application. Figure 3 , Figure 5 , Figure 14 and Figure 15 , Figure 14 This is a schematic diagram of the state process of some embodiments of this application. Figure 15 This is a flowchart illustrating some embodiments of this application. This application provides a cleaning method for cleaning material 200, the material 200 including a housing 210 and an end cap 220. The cleaning method includes:

[0253] S10, Fixed housing 210;

[0254] S20, fixed end cap 220, end cap 220 is partially inserted into housing 210;

[0255] S30 uses a laser-cleaned housing 210 and end cap 220.

[0256] Specifically, the housing 210 can be fixed by the first fastener 10, the end cap 220 can be fixed by the second fastener 20, the end cap 220 can be partially inserted into the housing 210, and the housing 210 and the end cap 220 can be laser cleaned by the laser assembly 30.

[0257] It is worth noting that the illustrations are merely illustrative examples, and the implementation of this application does not limit the execution order of S10 and S20, that is, the order of S10 and S20 can be interchanged.

[0258] Thus, the cleaning method of this application can clean the material 200 before welding, effectively preventing dirt generated during the assembly of the housing 210 and end cap 220 from entering the interior of the housing 210, and effectively preventing dust generated during laser cleaning from entering the interior of the material 200. This effectively solves the contamination defects in the welding of the housing 210 and end cap 220, thereby improving the yield of the welding of the housing 210 and end cap 220.

[0259] According to some embodiments of this application, optionally, please continue to refer to Figure 1 , Figure 8 and Figure 16 , Figure 16 This is a schematic flowchart of some embodiments of this application. The cleaning method further includes:

[0260] S40, push the end cap 220 toward the housing 210 so that the end cap 220 partially enters the housing 210.

[0261] Specifically, the end cap 220 can be pushed toward the housing 210 by a push drive component 108 so that the end cap 220 is partially closed into the housing 210.

[0262] Thus, the housing 210 and the end cap 220 can be partially assembled together before cleaning.

[0263] According to some embodiments of this application, optionally, please continue to refer to Figure 1 , Figure 8 , Figure 17 and Figure 18 , Figure 17 This is a schematic diagram of the state process of some embodiments of this application. Figure 18 This is a schematic flowchart of some embodiments of this application. The cleaning method further includes:

[0264] S50, the end cap 220 is closed into the surface of the housing 210 facing the housing 210.

[0265] Specifically, the flipping drive component 107 described above can be used to bring the end cap 220 into the housing 210 so that the surface of the housing 210 faces the housing 210.

[0266] Thus, the end cap 220 can be assembled with the housing 210 by flipping it over.

[0267] According to some embodiments of this application, optionally, please continue to refer to Figure 3 , Figure 8 , Figure 12 , Figure 19 and Figure 20 , Figure 19 This is a flowchart illustrating some embodiments of this application. Figure 20 This is a schematic diagram of the folded tab 2301 of a battery cell according to some embodiments of this application, showing the folded state of the tab 2301. Material 200 includes a battery cell, which includes an electrode assembly 230. The electrode assembly 230 is at least partially housed within a housing 210 and connected to an end cap 220 via the tab 2301. Step S50 involves closing the end cap 220 into the housing 210 with its surface facing the housing 210.

[0268] S51, the pressure member 1091 is used to press against the pre-bent part of the electrode tab 2301;

[0269] S52, when the pressing member 1091 presses against the pre-bent part, the surface of the end cap 220 that is inserted into the housing 210 faces the housing 210.

[0270] Specifically, the pressing drive component 1092 can press the pre-bent portion of the tab 2301 using the pressing member 1091. When the pressing member 1091 presses the pre-bent portion, the flipping drive component 107 can close the end cap 220 into the surface of the housing 210 so that it faces the housing 210.

[0271] Thus, the pressing member 1091 presses against the pre-bent portion of the tab 2301, allowing the tab 2301 connected to the electrode assembly 230 to be bent, thereby allowing the tab 2301 to be folded into the housing 210.

[0272] Please continue reading. Figure 3 , Figure 8 and Figure 21 , Figure 21 This is a flowchart illustrating some embodiments of the present application. According to some embodiments of the present application, optionally, pushing the end cap 220 towards the housing 210 to partially engage the end cap 220 with the housing 210 (step S40) includes:

[0273] S41, the limiting member 101 is placed between the end cap 220 and the housing 210;

[0274] S42, push the end cap 220 to abut against the retaining member 101 so that the end cap 220 partially enters the housing 210.

[0275] Specifically, the guide 102 can place the limiting member 101 between the end cap 220 and the housing 210, and the push drive member 108 can push the end cap 220 to abut against the limiting member 101 so that the end cap 220 is partially closed into the housing 210.

[0276] Thus, by placing the limiting member 101 between the end cap 220 and the housing 210, and pushing the end cap 220 to abut against the limiting member 101 so that the end cap 220 is partially inserted into the housing 210, the depth of the end cap 220 being inserted into the housing 210 can be adjusted to reserve a laser cleaning area before welding.

[0277] According to some embodiments of this application, optionally, please continue to refer to Figure 3 , Figure 8 , Figure 7 , Figure 6 and Figure 22 , Figure 22 This is a schematic flowchart of some embodiments of this application. The laser cleaning of the housing 210 and end cap 220 (step S30) includes:

[0278] S31, causing the housing 210 and end cap 220 to rotate synchronously;

[0279] S32, a laser is emitted toward the housing 210 and the end cap 220 to clean the housing 210 and the end cap 220.

[0280] Specifically, the first driving component 61 and the second driving component 62 can make the housing 210 and the end cover 220 rotate synchronously, and the laser head 31 can emit lasers to the housing 210 and the end cover 220 to clean the housing 210 and the end cover 220.

[0281] Thus, the synchronous rotation of the housing 210 and the end cap 220 can prevent relative displacement and damage after the housing 210 and the end cap 220 are assembled. Using laser to clean the housing 210 and the end cap 220 can clean dirt with strong adhesion on the surface of the housing 210 and the end cap 220, resulting in a better cleaning effect.

[0282] According to some embodiments of this application, optionally, please continue to refer to Figure 3 , Figure 6 , Figure 10 and Figure 23 , Figure 23 This is a schematic flowchart of some embodiments of this application. The cleaning method further includes:

[0283] S60, gas is introduced into the housing 210 through the injection port 221 of the end cap 220.

[0284] Specifically, the first pneumatic component 104 can introduce gas into the housing 210 through the liquid injection port 221 of the end cap 220.

[0285] In this way, by introducing gas into the housing 210, a positive pressure can be formed inside the housing 210, making the internal pressure of the housing 210 greater than the external pressure. This effectively prevents dirt generated during the laser cleaning process or cleaned from the surfaces of the housing 210 and end cap 220 from entering the housing 210, thereby avoiding safety hazards to the material 200.

[0286] According to some embodiments of this application, optionally, please continue to refer to Figure 8 , Figure 6 , Figure 11 and Figure 24 , Figure 24 This is a schematic flowchart of some embodiments of this application. The cleaning method further includes:

[0287] S70, when cleaning the housing 210 and end cap 220, absorbs contaminants around the housing 210 and end cap 220.

[0288] Specifically, when cleaning the housing 210 and end cap 220, the first pneumatic component 104 and the second pneumatic component 105 can absorb contaminants around the housing 210.

[0289] In this way, the contaminants around the absorbent housing 210 can prevent dirt from reaching the welding area under the influence of the external environment during or after cleaning, thus preventing poor welding.

[0290] According to some embodiments of this application, optionally, please continue to refer to Figure 3 , Figure 8 , Figure 25 and Figure 26 , Figure 25 This is a schematic diagram of the state process of some embodiments of this application. Figure 26 This is a schematic flowchart of some embodiments of this application. The cleaning method further includes:

[0291] S80, after cleaning the housing 210 and end cap 220, fully close the end cap 220 into the housing 210.

[0292] Specifically, after cleaning the housing 210 and the end cap 220, the closing drive component 110 can completely close the end cap 220 into the housing 210.

[0293] In this way, the end cap 220 can be completely inserted into the housing 210 after cleaning, so that the connection between the end cap 220 and the housing 210 can be welded later.

[0294] According to some embodiments of this application, optionally, please continue to refer to Figure 27 , Figure 27 This is a schematic diagram of the structure of a battery 400 according to some embodiments of this application. This application also provides a battery 400 manufactured using the cleaning method described above. The battery 400 can be a single battery cell or a product such as a battery pack having a casing 210 and an end cap 220.

[0295] It should be noted that the explanation of the cleaning device in the above embodiments can be applied to the cleaning method in the embodiments of this application. Other parts of the cleaning method in the embodiments of this application that are not elaborated can be referred to the corresponding parts of the cleaning device in the above embodiments, and will not be repeated here.

[0296] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A cleaning device for cleaning material, the material comprising a housing and an end cap, wherein, The cleaning device comprises: a first fixing member for fixing the shell; a second fixing member oppositely arranged with the first fixing member and for fixing the end cover; a laser assembly arranged on one side of the first fixing member and the second fixing member, for cleaning the shell and the end cover when the end cover is partially combined into the shell; wherein the material comprises a battery monomer, the battery monomer comprises an electrode assembly, the electrode assembly is at least partially accommodated in the shell and connected to the end cover through a tab, the cleaning device comprises a shaping assembly, the shaping assembly is used for bending the tab into a predetermined state when the end cover is flipped relative to the shell; wherein the shaping assembly comprises a pressing member and a pressing driving part connected with the pressing member, the pressing driving part is used for driving the pressing member to approach or move away from the electrode assembly, and the pressing member is used for pressing a pre-bent part of the tab in the process of bending the tab when the pressing member approaches the electrode assembly.

2. The cleaning device of claim 1, wherein, The first fixing member comprises a plurality of clamping members, and the plurality of clamping members collectively clamp the shell.

3. The cleaning device of claim 2, wherein, The plurality of clamping members are arranged along the circumference of the shell.

4. The cleaning device of claim 2, wherein, The cleaning device comprises a clamping driving part, and the clamping driving part drives the plurality of clamping members to approach or move away from each other.

5. The cleaning device of any one of claims 1-4, wherein, The second fixing member comprises a first mounting member and a first suction member fixed on the first mounting member, and the first suction member is used for adsorbing the end cover.

6. The cleaning device of claim 5, wherein, The cleaning device further comprises a protective shell arranged on the first mounting member, the first suction member is located in the protective shell, and the protective shell is used for covering at least part of the outer surface of the end cover.

7. The cleaning device of any one of claims 1-4, wherein, The cleaning device further comprises a rotating driving part, and the rotating driving part is used for driving the first fixing member and the second fixing member to rotate, or driving the laser assembly to rotate.

8. The cleaning device of claim 7, wherein, The rotating driving part comprises a first driving sub-member and a second driving sub-member, the first driving sub-member is used for driving the first fixing member to rotate, and the second driving sub-member is used for driving the second fixing member to rotate.

9. The cleaning device of claim 8, wherein, The first fixing member and the second fixing member rotate synchronously.

10. The cleaning device of claim 8, wherein, The cleaning device comprises a first support and a rotating part, the rotating part is rotatably arranged on the first support, the first fixing member is mounted on the rotating part, and the first driving sub-member is used for driving the rotating part to rotate, so as to drive the first fixing member to rotate.

11. The cleaning device of claim 8, wherein, The first driving sub-member is located on the side of the first fixing member away from the second fixing member.

12. The cleaning device of claim 8, wherein, The cleaning device comprises a second support, and the second fixing member is rotatably connected with the second support.

13. The cleaning device of any one of claims 1-4, wherein, The cleaning device comprises a limiting member, and the limiting member is arranged between the end cover and the shell when the end cover is combined into the shell, and is used for limiting the depth of the end cover combined into the shell.

14. The cleaning device of claim 13, wherein, The cleaning device comprises a guide member, and the limiting member is arranged on the guide member, and the guide member is used for guiding the end cover to be partially combined into the shell.

15. The cleaning device of claim 14, wherein, The guide member forms a guide channel for guiding the end cover into the shell, and the limiting member is arranged in the guide channel.

16. The cleaning device of claim 15, wherein, The guide member comprises a first part and a second part arranged apart from the first part, and the first part and the second part jointly define the guide channel.

17. The cleaning device of claim 15, wherein, The cleaning device comprises a guide driving component for driving the guide member to move close to or away from the end cover.

18. The cleaning device of any one of claims 1-4, wherein, The cleaning device comprises a first air pressure component for introducing gas into the shell through a liquid injection port of the end cover.

19. The cleaning device of any one of claims 1-4, wherein, The cleaning device comprises a second air pressure component for adsorbing pollutants generated during the operation of the laser assembly.

20. The cleaning device of claim 19, wherein, The second air pressure component comprises a suction member surrounding the second fixing member, and the suction member has a first suction channel with a port facing the shell, and a negative pressure is formed in the first suction channel.

21. The cleaning device of claim 20, wherein, The first fixing member forms a second suction channel for facing the end cover, and the second air pressure component is used to form a negative pressure in the second suction channel.

22. The cleaning device of any one of claims 1-4, wherein, The cleaning device further comprises a feeding assembly for fixing the end cover when the end cover is separated from the shell.

23. The cleaning device of claim 22, wherein, The feeding assembly comprises a second mounting member and a second suction member fixed on the second mounting member, and the second suction member is used to adsorb the end cover.

24. The cleaning device of claim 23, wherein, The feeding assembly further comprises a positioning driving component connected with the second mounting member, and the positioning driving component is used to drive the second mounting member to move close to or away from the end cover.

25. The cleaning device of claim 22, wherein, The cleaning device further comprises a turnover driving component connected with the feeding assembly, and the turnover driving component is used to drive the feeding assembly to rotate so that the surface of the end cover combined into the shell faces the shell.

26. The cleaning device of claim 22, wherein, The cleaning device further comprises a pushing driving component connected with the feeding assembly, and the pushing driving component is used to push the end cover to be partially combined into the shell when the surface of the end cover combined into the shell faces the shell.

27. The cleaning device of any one of claims 1-4, wherein, The laser assembly comprises a laser head and a moving component, and the laser head is mounted on the moving component, and the moving component can drive the laser head to move.

28. The cleaning device of any one of claims 1-4, wherein, The cleaning device further comprises a cover combining driving component connected with the second fixing member, and the cover combining driving component is used to drive the second fixing member to move close to or away from the first fixing member.

29. A production system, wherein, The cleaning device comprises: The cleaning device according to any one of claims 1-28; A welding device located downstream of the cleaning device and used for welding the shell and the end cover.

30. A method of cleaning, for cleaning material, the material comprising a housing and an end cap, wherein, The cleaning method comprises: Fixing the shell; Fixing the end cover, and the end cover is partially combined into the shell; Cleaning the shell and the end cover by using a laser; The material comprises a battery monomer, and the battery monomer comprises an electrode assembly, and the electrode assembly is at least partially accommodated in the shell and connected with the end cover through a tab; Using a pressing member to press a pre-bent part of the tab; When the pressing member presses the pre-bent part, turning the surface of the end cover combined into the shell to the shell.

31. The cleaning method of claim 30, wherein, The cleaning method further comprises: The end cap is pushed towards the shell to make the end cap partially fit into the shell.

32. The cleaning method of claim 31, wherein, The cleaning method further comprises: The surface of the end cap that fits into the shell faces the shell.

33. The cleaning method of any one of claims 31-32, wherein, The pushing of the end cap towards the shell to make the end cap partially fit into the shell comprises: A limiting member is arranged between the end cap and the shell; The end cap is pushed to abut against the limiting member to make the end cap partially fit into the shell.

34. The cleaning method according to any one of claims 30-32, wherein, The cleaning of the shell and the end cap by laser comprises: The shell and the end cap are synchronously rotated; Laser is emitted to the shell and the end cap to clean the shell and the end cap.

35. The cleaning method according to any one of claims 30-32, wherein, The cleaning method further comprises: Gas is introduced into the shell through a liquid injection port of the end cap.

36. The cleaning method according to any one of claims 30-32, wherein, The cleaning method further comprises: Contaminants around the shell and the end cap are absorbed when the shell and the end cap are cleaned.

37. The cleaning method according to any one of claims 30-32, wherein, The cleaning method further comprises: After the shell and the end cap are cleaned, the end cap is completely fitted into the shell.

38. A battery, wherein, The battery is manufactured by the cleaning method of any one of claims 30-32.

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