Brush assembly, cleaning device and battery production line

Abstract

The application relates to the technical field of battery production, in particular to a brush assembly, a cleaning device and a battery production line. The brush assembly comprises a mounting part, a cleaning part and a cleaning brush head. The mounting part is internally provided with a first through hole arranged along the axial direction of the mounting part, and the first through hole is filled with a colloid. One end of the cleaning part is connected to the circumferential surface of the mounting part, and the cleaning part is internally provided with a second through hole arranged along the axial direction of the cleaning part, and the second through hole is in communication with the first through hole. The cleaning brush head is configured as a structure in which the colloid flows out of the other end of the cleaning part from the first through hole and the second through hole and solidifies. The brush assembly of the embodiment of the application is provided with the mounting part, the cleaning part and the cleaning brush head. Compared with the structure in which the cleaning part and the cleaning brush head are integrated, when the cleaning brush head is worn, the brush assembly can form a new cleaning brush head through the flowing out and solidification of the colloid, thereby improving the cleaning efficiency of the cleaning brush head.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to a brush assembly, cleaning equipment, and battery production line. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] With the increasing maturity of new energy technologies, new energy vehicles and other electrical equipment are gradually entering the public eye. The core technology of new energy vehicles lies in the battery device, and the safety and stability of the battery device directly determine the performance of the entire vehicle.

[0004] In the production process of battery devices, cleaning equipment is required to clean processes such as coating. The cleaning equipment includes a brush assembly, which includes an interconnected mounting part and a cleaning part. One end of the cleaning part forms a cleaning brush head. The cleaning brush head scrapes or sweeps away surface particles through physical contact with the substrate. However, the cleaning brush head is prone to wear during long-term use, which affects the cleaning efficiency. Utility Model Content

[0005] In view of the above problems, this application provides a brush assembly, cleaning equipment and battery production line, which solves the problem that the cleaning brush head in the prior art is prone to wear during long-term use, thus affecting the cleaning efficiency.

[0006] A first aspect of the embodiments of this application provides a brush assembly, the brush assembly comprising: The mounting section has a first through hole arranged along its own axial direction, and the first through hole is filled with colloid. The cleaning part has one end connected to the circumferential surface of the mounting part, and the cleaning part has a second through hole arranged along its own axis, which communicates with the first through hole. The cleaning brush head is configured such that the colloid flows out of the other end of the cleaning section from the first through hole and the second through hole and then solidifies.

[0007] The brush assembly of this application comprises an installation part, a cleaning part, and a cleaning brush head. The installation part has a first through hole arranged along its own axial direction, and the first through hole is filled with colloid. One end of the cleaning part is connected to the circumferential surface of the installation part. The cleaning brush head is configured such that the colloid flows out from the first through hole and the second through hole to the other end of the cleaning part and solidifies. Compared with a structure in which the cleaning part and the cleaning brush head are integrated, the brush assembly of this application can form a new cleaning brush head by allowing the colloid to flow out from the other end of the cleaning part and solidify after the cleaning brush head wears down, thereby improving the cleaning efficiency of the cleaning brush head.

[0008] Furthermore, the embodiments of this application, by setting a cured and molded cleaning brush head, eliminate the need for additional assembly and fixing structures, simplifying the processing and assembly of the cleaning brush head and reducing assembly tolerances. The colloid solidifies after flowing out through the second through-hole, resulting in a tight, gapless bond between the cleaning brush head and the cleaning part end, strengthening the overall structural stability. The cleaning brush head does not loosen, shake, or detach during high-speed cleaning operations. In addition, this structure allows the cleaning brush head to self-repair based on wear conditions, eliminating the need for frequent disassembly and replacement, further extending the overall lifespan of the brush assembly and adapting to the high-precision, high-stability cleaning requirements of battery coating.

[0009] In some embodiments of this application, the second through hole is a tapered structure, with the small end of the tapered structure facing the cleaning brush head.

[0010] In this embodiment, the second through-hole is configured as a conical structure, with the small end of the conical structure facing the cleaning brush head. This allows the second through-hole to form a guiding and converging flow channel, precisely guiding and concentrating the colloid. It guides the colloid to flow smoothly and centrally towards the small end of the conical structure, reducing the likelihood of scattered overflow, misaligned molding, or uneven thickness on the cleaning brush head. Furthermore, this converging flow channel increases the colloid outflow pressure, resulting in a dense and uniform structure of the cured brush head, free from looseness and voids. This significantly improves the wear resistance and structural integrity of the cleaning brush head, ensuring a smooth working surface and consistent cleaning uniformity of the electrode sheets.

[0011] In some embodiments of this application, the cone angle of the tapered structure is in the range of 5° to 15°.

[0012] The embodiments of this application, by limiting the cone angle of the conical structure to a range of 5° to 15°, enable the conical structure to form a stable pressure gradient within a suitable fitting range. Too small a cone angle leads to high flow resistance and poor dispensing of the colloid, while too large a cone angle easily causes excessively fast colloid flow, dispersion of the molding material, and poor dimensional accuracy of the brush head. A cone angle within the range of 5° to 15° balances smooth colloid flow with molding stability, ensuring efficient and convenient colloid injection and replenishment operations, while precisely controlling the shape and size of the brush head and the flatness of the working surface after curing. This adapts to the cleaning precision requirements of the electrode sheets, while also ensuring the structural strength of the cleaning brush head's root, reducing the risk of chipping, cracking, and detachment due to long-term friction.

[0013] In some embodiments of this application, there are multiple cleaning parts, and the multiple cleaning parts are spirally distributed on the outer surface of the mounting part; or, the multiple cleaning parts are distributed in a ring structure on the circumferential surface of the mounting part, the number of ring structures is at least two, and all the ring structures are spaced apart along the axial direction of the mounting part itself.

[0014] The embodiments of this application, by arranging multiple cleaning sections in a spiral pattern on the outer surface of the mounting section, create a continuous spiral cleaning trajectory with no blind spots, achieving full coverage and thorough cleaning of the electrode surface without dead angles. This effectively removes residual coating particles and dust impurities, improving cleaning uniformity. Furthermore, at least two sets of annular structures are arranged at intervals along the axial direction of the mounting section, allowing for segmented cleaning of the substrate surface to accommodate cleaning needs of substrate surfaces with varying degrees of contamination. Both of these arrangement methods improve overall cleaning coverage and operational efficiency, while dispersing individual point friction forces, reducing the wear rate of individual cleaning brush heads, and enhancing the overall durability of the brush assembly.

[0015] In some embodiments of this application, a third through hole is provided on the circumferential surface of the conical structure. Compared with the mounting part, the third through hole is provided in the part of the conical structure closer to the cleaning brush head.

[0016] The embodiments of this application, by adding a third through-hole closer to the cleaning brush head in the conical structure, can use this third through-hole as an auxiliary dispensing hole, enabling multi-channel diversion of the adhesive and solving the problems of concentrated dispensing from a single through-hole, localized adhesive accumulation, and uneven thickness of the brush head. Furthermore, multi-channel dispensing allows the adhesive to quickly and evenly fill the forming area of ​​the cleaning brush head, resulting in higher overall density and hardness consistency after curing, better surface flatness, effectively improving the overall wear resistance of the brush head, reducing the probability of cleaning failure due to excessive localized wear, and ensuring long-term cleaning stability.

[0017] In some embodiments of this application, the number of third through holes is at least two, and the at least two third through holes are spaced apart circumferentially along the tapered structure, and / or spaced apart axially along the tapered structure.

[0018] In the embodiments of this application, the number of third through holes is set to at least two, and the at least two third through holes are spaced apart circumferentially along the conical structure and / or spaced apart axially along the conical structure, which further optimizes the diversion effect of the colloid. The circumferential arrangement ensures that the circumferential structure of the cleaning brush head is uniform, and the axial arrangement makes the thickness of the cleaning brush head uniform, which greatly improves the overall structural consistency and stress uniformity of the brush head, so that the cleaning brush head wears evenly in high-speed reciprocating cleaning operations, greatly extends the service life of the cleaning brush head, and reduces the replacement frequency and production cost.

[0019] In some embodiments of this application, the cleaning part includes a plastic component with a tensile strength greater than 50 MPa.

[0020] The embodiments of this application define the cleaning section as including plastic parts with a tensile strength greater than 50 MPa. This gives the cleaning section excellent tensile, bending, and fatigue resistance, enabling it to withstand long-term, high-frequency physical scraping and frictional impacts without easily deforming, breaking, or bending. Compared to ordinary plastic materials, this high-strength material is suitable for the continuous, high-intensity cleaning operations of battery production lines, significantly improving the overall structural stability and service life of the brush assembly, reducing damage and failure of the cleaning section, and ensuring the continuous and stable operation of the production line. Simultaneously, the plastic material is lightweight and corrosion-resistant, making it suitable for dust-free coating cleaning environments.

[0021] A second aspect of the embodiments of this application provides a cleaning device, which includes the brush assembly mentioned in the above embodiments. The mounting part of the brush assembly is provided with a first through hole arranged along its own axis, and the cleaning part of the brush assembly is provided with a second through hole arranged along its own axis. The second through hole communicates with the first through hole, and the first through hole is filled with a colloid. At least a portion of the colloid solidifies to form the cleaning brush head.

[0022] The cleaning device of this application improves the brush assembly. Compared with the structure where the cleaning part and the cleaning brush head are integrated, the brush assembly of the cleaning device of this application can easily replace the worn cleaning brush head, thereby improving the cleaning efficiency of the cleaning brush head.

[0023] In some embodiments of this application, the cleaning device further includes a power assembly connected to a first through-hole to drive the colloid to flow to a second through-hole.

[0024] The cleaning equipment of this application embodiment actively drives the flow of colloid through a power component, replacing the traditional natural flow method. It can precisely control the colloid flow rate, flow rate, and pressure, achieving automated and standardized colloid injection molding, avoiding the problems of uneven colloid volume and large molding errors caused by manual injection. At the same time, it can quickly complete the colloid replenishment and refurbishment of worn brush heads, greatly improving maintenance efficiency, adapting to the needs of continuous industrial production, ensuring that the molding size and performance of each batch of brush heads are uniform, and ensuring the consistency and stability of the equipment's cleaning accuracy.

[0025] In some embodiments of this application, the cleaning device further includes a heating component for heating the colloid within the first through-hole to change it from a solid to a liquid state.

[0026] The embodiments of this application, by incorporating a heating component, enable rapid melting and liquefaction of solid colloids, eliminating the need for pre-treatment and simplifying the workflow. This solves the problems of poor colloid flowability at room temperature, blockage of the first and second through holes, and dispensing difficulties. Furthermore, the heating component ensures smooth flow and uniform dispensing of the colloid within the first and second through holes, significantly improving the forming efficiency and quality of the cleaning brush head, reducing defects such as uneven colloid curing and internal air bubbles, and further enhancing the structural strength and wear resistance of the brush head.

[0027] In some embodiments of this application, the heating assembly includes an electric heating element, which has a ring structure and is sleeved on the circumferential outer side of the brush assembly.

[0028] In this embodiment, the electric heating element is configured as a ring structure and fitted around the circumferential outer side of the brush assembly. This ensures uniform circumferential heating of the brush assembly, with the heating range fully covering the colloid area of ​​the first through hole. The uniform heating without dead zones reduces the probability of insufficient colloid melting and inconsistent flowability caused by uneven heating. Furthermore, electric heating offers rapid heating, precise temperature control, low energy consumption, high integration (saving equipment space), and stable and efficient colloid melting, ensuring continuous and efficient injection molding operations and meeting the high-frequency maintenance requirements of production lines.

[0029] A third aspect of the embodiments of this application provides a battery production line, which includes the cleaning equipment mentioned in the above embodiments.

[0030] 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

[0031] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. 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: Figure 1 A schematic diagram of the structure of a brush assembly (including a sealing ring and a bearing) provided for some embodiments of this application; Figure 2 for Figure 1 The diagram shows a partial enlarged view of the brush assembly at point A. Figure 3 for Figure 1 The diagram shows a partial enlarged view of the brush assembly at point B. Figure 4This application provides schematic diagrams of the structure of cleaning equipment according to some embodiments; Figure 5 for Figure 4 The diagram shows the cleaning equipment in its second state.

[0032] The attached figures are labeled as follows: 100. Cleaning equipment; 10. Brush assembly; 11. Mounting section; 111. First through hole; 12. Cleaning section; 121. Second through hole; 13. Clean the brush head; 14. Colloids; 15. Third through hole; 20. Power components; 30. Connecting pipes; 40. Heating components; 41. Electric heating elements; 50. Drive shaft; 60. Sealing ring; 70. Bearings; XX, the length direction of the brush component; ZZ, the height direction of the brush assembly; α, the cone angle of the cone structure. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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).

[0039] 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 do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0040] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0041] Currently, judging from market trends, the application of battery devices is becoming increasingly widespread. Battery devices are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, but also widely applied in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in aerospace and other fields. With the continuous expansion of the application areas of battery devices, the market demand is also constantly increasing.

[0042] The battery devices described in this application can be used, but are not limited to, in electrical equipment such as vehicles, ships, or aircraft. Such electrical equipment can be composed of battery cells and battery devices as described in this application.

[0043] In this application embodiment, the electrical devices using battery devices as power sources can be, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Among them, electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0044] It should be understood that the technical solutions described in the embodiments of this application are not limited to the battery devices and electrical equipment described above, but can also be applied to all batteries including housings and electrical equipment using batteries.

[0045] The battery apparatus mentioned in the embodiments of this application may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells connected in series, parallel, or mixed connections via a busbar.

[0046] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells.

[0047] As an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells together to form an independent module. As another example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0048] In some embodiments, the battery device may be a battery pack, which includes a housing and one or more individual battery cells housed within the housing.

[0049] As an example, the battery cell assembly can be a battery module, which can be housed in a housing by fixing the battery module in the housing.

[0050] As an example, battery cell assemblies can also be housed in a housing by directly fixing multiple battery cells to the housing.

[0051] As an example, the enclosure may include a first enclosure and a second enclosure. The first enclosure and the second enclosure are fastened together to form a closed space inside the enclosure to house the individual battery cells. Here, "closed" refers to covering or closing, and can be either sealed or unsealed. The first enclosure may be a top cover or a bottom plate.

[0052] As an example, the enclosure may include a top cover, a frame, and a bottom plate. The top cover and bottom plate are connected to the frame, creating an enclosed space inside the enclosure to house the individual battery cells.

[0053] In some embodiments, the housing may be part of the vehicle's chassis structure. For example, a portion of the housing may be at least a part of the vehicle's floor, or a portion of the housing may be at least a part of the vehicle's crossbeams and longitudinal beams.

[0054] A battery cell includes an electrode assembly and an electrolyte. The electrode assembly consists of a positive electrode, a negative electrode, and a separator. The battery cell primarily functions by the movement of metal ions between the positive and negative electrodes. The positive electrode includes a positive current collector and a positive active material layer. The positive active material layer is coated on the surface of the positive current collector. Current collectors without the positive active material layer protrude beyond those with the coating. These uncoated current collectors are stacked together to form the positive electrode tab. Taking a lithium-ion battery as an example, the positive current collector can be made of aluminum, and the positive active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc. The negative electrode includes a negative current collector and a negative active material layer. The negative active material layer is coated on the surface of the negative current collector. Current collectors without the negative active material layer protrude beyond those with the coating. These uncoated current collectors are stacked together to form the negative electrode tab. The negative current collector can be made of copper, and the negative active material can be carbon or silicon, etc. The separator can be made of PP (polypropylene) or PE (polyethylene), etc. Furthermore, the electrode assembly can be a wound structure or a stacked structure; the embodiments of this application are not limited to these.

[0055] The technical solutions described in the embodiments of this application are applicable to various electrical devices that use individual battery cells, such as mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, vehicles, ships, and spacecraft. For example, spacecraft include airplanes, rockets, space shuttles, and spacecraft.

[0056] In the production process of battery devices, cleaning equipment is required to clean processes such as coating. The cleaning equipment includes a brush assembly, which includes an interconnected mounting part and a cleaning part. One end of the cleaning part forms a cleaning brush head, which scrapes or sweeps away surface particles through physical contact with the substrate. However, the cleaning brush head is prone to wear during long-term use, which affects the cleaning efficiency.

[0057] To address this problem, embodiments of this application propose a brush assembly comprising a mounting portion, a cleaning portion, and a cleaning brush head. The mounting portion has a first through hole arranged along its own axial direction, and the first through hole is filled with an adhesive. One end of the cleaning portion is connected to the mounting portion, and the cleaning portion has a second through hole arranged along its own axial direction, communicating with the first through hole. The cleaning brush head is located at the other end of the cleaning portion and is configured such that the adhesive flows out from the first and second through holes and solidifies. Compared to a structure where the cleaning portion and cleaning brush head are integrated, the brush assembly of this application allows for the formation of a new cleaning brush head after the cleaning brush head wears down, through the flow and solidification of the adhesive, thereby improving the cleaning efficiency of the cleaning brush head.

[0058] The brush assembly in the embodiments of this application can be used in the production process of battery devices, such as for cleaning the surface of electrode sheets, and can also be used in fields such as precision electronic assembly and high-end medical device cleaning.

[0059] The structures in the embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0060] like Figures 1 to 3 As shown, Figure 1 This is a schematic diagram of the structure of a brush assembly 10 (including a sealing ring 60 and a bearing 70) provided in some embodiments of this application. Figure 2 for Figure 1 The diagram shows a partial enlarged view of the brush assembly 10 at point A. Figure 3 for Figure 1 The diagram shows a partially enlarged view of the brush assembly 10 at point B. Embodiments of this application propose a brush assembly 10, which includes a mounting portion 11, a cleaning portion 12, and a cleaning brush head 13. The mounting portion 11 has a first through hole 111 arranged along its own axial direction, and the cleaning portion 12 has a second through hole 121 arranged along its own axial direction, communicating with the first through hole 111. The first through hole 111 is filled with colloid 14. One end of the cleaning portion 12 is connected to the circumferential surface of the mounting portion 11, and the cleaning brush head 13 is configured such that colloid 14 flows out from the first through hole 111 and the second through hole 121 to the other end of the cleaning portion 12 and solidifies.

[0061] The first through hole 111 extends along the XX direction, where the XX direction is the length direction of the brush assembly 10. The second through hole 121 is interconnected with the first through hole 111. The colloid 14 can flow from the first through hole 111 to the second through hole 121 in a liquid state, and then solidify after flowing out of the second through hole 121 to form a cleaning brush head 13.

[0062] It is understandable that the first through hole 111 here can be a cylindrical through hole, and the second through hole 121 can also be a cylindrical through hole. The colloid flowing out of the second through hole 121 forms a cleaning brush head 13 after curing.

[0063] Compared to the integrated structure of the cleaning part 12 and the cleaning brush head 13, the brush assembly 10 of this application can form a new cleaning brush head 13 by the outflow and curing of the colloid after the cleaning brush head 13 is worn, thereby improving the cleaning efficiency of the cleaning brush head 13.

[0064] The embodiments of this application, by setting a pre-cured cleaning brush head 13, eliminate the need for additional assembly and fixing structures, simplifying the processing and assembly of the cleaning brush head 13 and reducing assembly tolerances. The colloid 14 solidifies after flowing out through the second through-hole 121, resulting in a tight, gapless bond between the cleaning brush head 13 and the end of the cleaning section 12, enhancing overall structural stability. The cleaning brush head 13 does not loosen, shake, or detach during high-speed cleaning operations. Furthermore, this structure allows the cleaning brush head 13 to self-repair based on wear conditions, eliminating the need for frequent disassembly and replacement, further extending the overall lifespan of the brush assembly 10 and adapting to the high-precision, high-stability cleaning requirements of battery coating.

[0065] In some embodiments of this application, such as Figure 2 and Figure 3 As shown, the second through hole 121 has a conical structure, with the small end of the conical structure facing the cleaning brush head 13.

[0066] The second through hole 121 here can be a conical structure, in which the colloid 14 flows out from the small end of the conical structure and solidifies to form a cleaning brush head 13.

[0067] In this embodiment, the second through-hole 121 is configured as a conical structure, with the small end of the conical structure facing the cleaning brush head 13. This allows the first through-hole 111 to form a guiding and converging flow channel, precisely guiding and concentrating the colloid 14. This guides the colloid 14 to flow smoothly and centrally outwards towards the small end of the conical structure, reducing the likelihood of scattered overflow, skewed molding, or uneven thickness in the cleaning brush head 13. Furthermore, this converging flow channel increases the outflow pressure of the colloid 14, resulting in a dense and uniform structure of the cured cleaning brush head 13, free from looseness and voids. This significantly improves the wear resistance and structural integrity of the cleaning brush head 13, ensuring a smooth working surface and consistent cleaning uniformity of the electrode sheets.

[0068] In some embodiments of this application, such as Figure 3 As shown, the cone angle of the cone structure is α, which is in the range of 5° to 15°, such as α being 5°, 8°, 10° or 15°, etc.

[0069] The embodiments of this application, by limiting the cone angle of the conical structure to a range of 5° to 15°, enable the conical structure to form a stable pressure gradient within a suitable fitting range. Too small a cone angle leads to high flow resistance and poor dispensing of the colloid 14, while too large a cone angle easily causes excessively fast flow of the colloid 14, resulting in dispersion of the molding material and poor dimensional accuracy of the brush head. A cone angle within the range of 5° to 15° balances the smooth flow of the colloid 14 with molding stability, ensuring efficient and convenient dispensing and replenishment operations, while precisely controlling the shape and size of the brush head and the flatness of the working surface after curing. This adapts to the cleaning precision requirements of the electrode sheet, while also ensuring the structural strength of the root of the cleaning brush head 13, reducing the occurrence of chipping, cracking, and detachment due to long-term friction.

[0070] In some embodiments of this application, such as Figure 1 As shown, there are multiple cleaning parts 12, and the multiple cleaning parts 12 are spirally distributed on the outer surface of the mounting part 11; or, the multiple cleaning parts 12 are distributed in a ring structure on the circumferential surface of the mounting part 11, the number of ring structures is at least two, and all the ring structures are spaced apart along the axial direction of the mounting part 11 itself.

[0071] The mounting portion 11 here has a cylindrical structure, and the cleaning portion 12 is provided on the circumferential surface of the mounting portion 11. Multiple cleaning portions 12 are spirally distributed on the outer surface of the mounting portion 11. Alternatively, in... Figure 1 In the mounting part 11, multiple cleaning parts 12 are distributed in a ring structure on the circumferential surface of the mounting part 11. The number of ring structures is at least two, and all ring structures are distributed at intervals along the axial direction of the mounting part 11 itself.

[0072] Regardless of how the multiple cleaning units 12 are distributed, all cleaning units 12 are arranged radially around the mounting unit 11. Figure 1 The ZZ direction in the figure represents the height direction of the brush component 10.

[0073] Alternatively, some of the cleaning sections 12 may be distributed in a spiral shape, while other cleaning sections 12 may be distributed in a ring structure.

[0074] In this embodiment, by spirally distributing multiple cleaning sections 12 on the outer surface of the mounting section 11, a continuous spiral cleaning trajectory can be formed, eliminating blind spots and achieving full coverage of the electrode surface without dead angles. This thoroughly removes coating residue particles and dust impurities, improving cleaning uniformity. Furthermore, at least two sets of annular structures are arranged at intervals along the axial direction of the mounting section 11, allowing for segmented cleaning of the substrate surface and adapting to cleaning needs of substrate surfaces with varying degrees of contamination. Both of these arrangement methods improve the overall cleaning coverage area and operational efficiency, while dispersing single-point friction forces, reducing the wear rate of individual cleaning brush heads 13, and enhancing the overall durability of the brush assembly 10.

[0075] In some embodiments of this application, such as Figure 2 As shown, a third through hole 15 is provided on the circumferential surface of the conical structure. Compared with the mounting part 11, the third through hole 15 is provided in the part of the conical structure closer to the cleaning brush head 13.

[0076] Specifically, a third through hole 15 is provided on the side of the tapered structure closer to the small end. The third through hole 15 can be used as an auxiliary dispensing hole. The number of third through holes 15 can be one or more. Figure 2 In the middle, there are multiple third through holes 15.

[0077] In this embodiment, by adding a third through-hole 15 closer to the cleaning brush head 13 in the conical structure, the third through-hole 15 can serve as an auxiliary dispensing hole, enabling multi-channel diversion of the adhesive 14. This solves the problems of concentrated dispensing from a single through-hole, localized adhesive 14 accumulation, and uneven thickness of the brush head. Furthermore, multi-channel dispensing allows the adhesive 14 to quickly and evenly fill the forming area of ​​the cleaning brush head 13. After curing, the overall density and hardness of the cleaning brush head 13 are more consistent, the working surface is smoother, effectively improving the overall wear resistance of the brush head, reducing the probability of cleaning failure due to excessive localized wear, and ensuring long-term cleaning stability.

[0078] In some embodiments of this application, such as Figure 2 As shown, the number of third through holes 15 is at least two, and the at least two third through holes 15 are spaced apart circumferentially along the tapered structure, and the at least two through holes are spaced apart axially along the tapered structure.

[0079] The third through hole 15 here is a multi-row structure along the axial direction of the conical structure, with multiple third through holes 15 in each row. The third through holes 15 in each row are spaced apart along the circumference of the conical structure, so that the cleaning brush head 13 can evenly wrap around the small end of the conical structure.

[0080] In the embodiments of this application, the number of third through holes 15 is set to at least two, and the at least two third through holes 15 are spaced apart circumferentially along the conical structure and / or spaced apart axially along the conical structure, which further optimizes the diversion effect of the colloid 14. The circumferential arrangement ensures that the circumferential structure of the cleaning brush head 13 is uniform, and the axial arrangement makes the thickness of the cleaning brush head 13 uniform, which greatly improves the overall structural consistency and force uniformity of the brush head, so that the cleaning brush head 13 wears evenly in high-speed reciprocating cleaning operations, greatly extends the service life of the cleaning brush head 13, and reduces the replacement frequency and production cost.

[0081] Optionally, the third through-hole 15 can be processed using high-precision laser drilling, electrical discharge machining, or photolithography, enabling control over the processing accuracy of the third through-hole 15. The third through-hole 15 can be a circular hole, an elliptical hole, or a polygonal hole. When the third through-hole 15 is a circular hole, its diameter is within the range of 50μm to 500μm, which can optimize the exudation rate, flow resistance, and surface tension balance of the colloid 14, reducing the probability of dripping or clogging.

[0082] In some embodiments of this application, the cleaning part 12 includes a plastic part with a tensile strength greater than 50 MPa.

[0083] The cleaning part 12 here can be made of high-strength plastic material, such as polyetheretherketone plastic, polyphenylene sulfide plastic, polyimide material or modified polyethylene terephthalate material, etc. The cleaning part 12 made of these materials has high temperature resistance and tensile strength greater than 50MPa.

[0084] The embodiments of this application define the cleaning section 12 as including plastic parts with a tensile strength greater than 50 MPa. This gives the cleaning section 12 excellent tensile, bending, and fatigue resistance, enabling it to withstand long-term, high-frequency physical scraping and frictional impacts without easily deforming, breaking, or bending. Compared to ordinary plastic materials, this high-strength material is suitable for the continuous, high-intensity cleaning operations of battery production lines, significantly improving the overall structural stability and service life of the brush assembly 10, reducing damage to the cleaning section 12, and ensuring the continuous and stable operation of the production line. Simultaneously, the plastic material is lightweight and corrosion-resistant, making it suitable for dust-free coating cleaning environments.

[0085] The cleaning section 12 can be formed by molding process, and the maximum inner diameter of the second through hole 121 of the cleaning section 12 is in the range of 0.5 mm to 1.0 mm.

[0086] Optionally, the colloid 14 here can be a polyamide, polyester or polyurethane hot melt adhesive with a melting point in the range of 80°C to 120°C, and the conversion between liquid and solid states of the colloid 14 can be achieved by temperature control.

[0087] Alternatively, colloid 14 can also be made of polyamide hot melt adhesive and 5% molybdenum disulfide nanosheets, which can also meet the melting point requirements.

[0088] A second aspect of the embodiments of this application provides a cleaning device 100, such as Figure 4 and Figure 5 As shown, Figure 4 This is a schematic diagram of the structure of a cleaning device 100 provided in some embodiments of this application. Figure 5 for Figure 4 The diagram shows the cleaning device 100 in its second state. The cleaning device 100 includes the brush assembly 10 mentioned in the above embodiment. The brush assembly 10 includes a mounting part 11 and a cleaning part 12. The cleaning part 12 is connected to the mounting part 11. The mounting part 11 has a first through hole 111 arranged along its own axis. The cleaning part 12 has a second through hole 121 arranged along its own axis. The second through hole 121 communicates with the first through hole 111. The first through hole 111 is filled with colloid 14.

[0089] The cleaning device 100 of this application improves the brush assembly 10. Compared with the structure where the cleaning part 12 and the cleaning brush head 13 are integrated, the brush assembly 10 of the cleaning device 100 of this application can easily replace the worn cleaning brush head 13, thereby improving the cleaning efficiency of the cleaning brush head 13.

[0090] In some embodiments of this application, such as Figure 4 As shown, the cleaning device 100 also includes a power assembly 20, which is connected to the first through hole 111 to drive the colloid 14 to flow to the second through hole 121.

[0091] The power component 20 here can be a power pump structure, which is connected to the first through hole 111 through the connecting pipe 30, so that the colloid 14 can flow from the first through hole 111 to different second through holes 121 under the action of external force.

[0092] The cleaning equipment 100 of this application embodiment actively drives the flow of colloid 14 through the power component 20, replacing the traditional natural flow method. It can precisely control the flow rate, flow rate, and pressure of colloid 14, realizing automated and standardized colloid injection molding, avoiding the problems of uneven colloid volume and large molding errors caused by manual injection. At the same time, it can quickly complete the colloid replenishment and refurbishment of worn brush heads, greatly improving maintenance efficiency, adapting to the needs of continuous industrial production, ensuring that the molding size and performance of each batch of brush heads are uniform, and ensuring the consistency and stability of the equipment's cleaning accuracy.

[0093] In some embodiments of this application, the cleaning device 100 further includes a heating component 40 for changing the colloid 14 within the first through-hole 111 from a solid state to a liquid state.

[0094] The heating component 40 here can be an electric heating structure, a magnetic heating structure, or a wrap-around heating structure, which can change the colloid 14 in the first through hole 111 from a solid state to a liquid state, so that the colloid 14 can flow.

[0095] The embodiments of this application, by incorporating a heating component 40, enable rapid melting and liquefaction of the solid colloid 14, eliminating the need for pre-treatment of the colloid 14, simplifying the workflow, and resolving issues such as poor fluidity of the colloid 14 at room temperature, blockage of the first through hole 111 and the second through hole 121, and dispensing difficulties. Furthermore, the heating component 40 ensures smooth flow and uniform dispensing of the colloid 14 within the first through hole 111 and the second through hole 121, significantly improving the forming efficiency and quality of the cleaning brush head 13, reducing defects such as uneven curing of the colloid 14 and internal air bubbles, and further enhancing the structural strength and wear resistance of the brush head.

[0096] In some embodiments of this application, such as Figure 5 As shown, the heating assembly 40 includes an electric heating element 41, which has a ring structure and is sleeved on the circumferential outer side of the brush assembly 10.

[0097] The electric heating element 41 can be a heating wire structure. When it is necessary to change the colloid 14 from a solid to a liquid state, the electric heating element 41 is sleeved on the outer circumferential side of the brush assembly 10. Under the action of the power component 20, the colloid 14 flows out from the second through hole 121. When not needed, the heating component 40 can be moved from the outer circumferential side of the brush assembly 10 to other positions.

[0098] In this embodiment, the electric heating element 41 is configured as a ring structure and sleeved on the circumferential outer side of the brush assembly 10. This enables uniform circumferential heating of the brush assembly 10, with the heating range fully covering the area of ​​the colloid 14 in the first through hole 111. The heating is uniform and without dead corners, reducing the probability of insufficient melting and inconsistent flowability of the colloid 14 caused by uneven heating. In addition, the electric heating method has a fast heating speed, precise temperature control, low energy consumption, high integration and no space occupation, and can stably and efficiently melt the colloid 14, ensuring continuous and efficient injection molding operations and adapting to the high-frequency maintenance requirements of the production line.

[0099] Optionally, the cleaning device 100 also includes a drive shaft 50, which is connected to one end of the mounting part 11. The mounting part 11 can be rotated by components such as a motor. It should be noted that the drive shaft 50 and the connecting pipe 30 are respectively connected to the two ends of the mounting part 11. During rotation, the drive shaft 50 drives the mounting part 11 to rotate synchronously, thereby causing the brush assembly 10 to rotate and achieving the cleaning process.

[0100] Optionally, the cleaning device 100 also includes a mold assembly (not shown), which includes a cover connected to the other end of the cleaning section 12. Adhesive enters the space defined by the cover and then cures to form a cleaning brush head 13. The cleaning brush head 13 formed in this manner exhibits greater stability in size and shape, improving the consistency of all cleaning brush heads 13.

[0101] Understandably, the cleaning brush head 13 here can also be formed by the flow of the colloid 14 itself, which is a simpler and lower-cost structure.

[0102] In addition, the cleaning device 100 here also includes a sealing ring 60 and a bearing 70. The bearing 70 can be installed on the circumferential outer side of the drive shaft 50, and the bearing 70 can also be installed in the first through hole 111 of the mounting part 11 to support the connecting pipe 30. In addition, in order to achieve a sealed connection between the connecting pipe 30 and the mounting part 11, a sealing ring 60 can be installed on the contact surface between the connecting pipe 30 and the mounting part 11 to achieve a sealing effect.

[0103] It should be added that the connection between the cleaning part 12 and the installation part 11 can be achieved by hot melt adhesive injection, ultrasonic welding, or snap-fit ​​connection.

[0104] The self-repair process of cleaning equipment 100 is explained below.

[0105] After the cleaning brush head 13 of the brush assembly 10 becomes worn, the worn cleaning brush head 13 is removed, and then the heating component 40 is fitted onto the circumferential outer side of the brush assembly 10 for heating. The heating temperature can be in the range of 120°C to 130°C. Start the power assembly 20 and apply a pressure of 0.4MPa to 0.8MPa to the first through hole, so that the colloid 14 forms liquid droplets at the small end of the cleaning part 12; Remove the heating element 40 to allow the liquid droplets to solidify after exchanging heat with the external environment at room temperature; After curing for a certain period of time, such as 30 minutes, the brush assembly 10 can be put into use. When the brush assembly 10 has been used for the required time, the worn cleaning brush head 13 can be removed and repaired again.

[0106] Compared to a solid cleaning section 12, this cleaning device 100 reduces the material usage of the cleaning section 12, increases the wear resistance of the cleaning brush head 13, and improves the service life of the brush assembly 10.

[0107] Embodiments of this application also propose a battery production line, which includes the cleaning equipment 100 mentioned in the above embodiments. The battery production line also includes welding equipment and winding equipment, etc., which are capable of producing battery devices.

[0108] 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.

[0109] A first aspect of the embodiments of this application provides a brush assembly 10, which includes a mounting portion 11, a cleaning portion 12, and a cleaning brush head 13. The mounting portion 11 has a first through hole 111 arranged along its own axial direction, and the cleaning portion 12 has a second through hole 121 arranged along its own axial direction. The second through hole 121 communicates with the first through hole 111. The first through hole 111 is filled with colloid 14. One end of the cleaning portion 12 is connected to the circumferential surface of the mounting portion 11. The cleaning brush head 13 is configured such that the colloid 14 flows out from the first through hole 111 and the second through hole 121 to the other end of the cleaning portion 12 and is cured. Furthermore, the mounting portion 11 has a first through hole 111 arranged along its own axial direction, and the cleaning portion 12 has a second through hole 121 arranged along its own axial direction. The second through hole 121 communicates with the first through hole 111, and the first through hole 111 is filled with colloid 14. The cleaning brush head 13 is configured such that the colloid 14 flows out from the first through hole 111 and the second through hole 121 and solidifies. Furthermore, the second through hole 121 has a conical structure, with the small end of the conical structure facing the cleaning brush head 13. Furthermore, the cone angle of the conical structure is in the range of 5° to 15°. Furthermore, there are multiple cleaning portions 12, and the multiple cleaning portions 12 are spirally distributed on the outer surface of the mounting portion 11; or, the multiple cleaning portions 12 are annularly distributed on the circumferential surface of the mounting portion 11, with at least two annular structures, and all annular structures are spaced apart along the axial direction of the mounting portion 11. Furthermore, a third through hole 15 is provided on the circumferential surface of the conical structure. Compared to the mounting portion 11, the third through hole 15 is located on the portion of the conical structure closer to the cleaning brush head 13. Furthermore, the number of third through holes 15 is at least two, and the at least two third through holes 15 are spaced apart circumferentially along the conical structure, and / or spaced apart axially along the conical structure. Furthermore, the cleaning portion 12 includes a plastic component with a tensile strength greater than 50 MPa.

[0110] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A brush assembly, characterized in that, include: The mounting part has a first through hole arranged along its own axial direction, and the first through hole is filled with colloid. The cleaning part has one end connected to the circumferential surface of the mounting part, and the cleaning part has a second through hole arranged along its own axial direction, which communicates with the first through hole; A cleaning brush head, wherein the cleaning brush head is configured such that the colloid flows out of the other end of the cleaning section through the first through hole and the second through hole and is cured.

2. The brush assembly as described in claim 1, characterized in that, The second through hole has a tapered structure, with the small end of the tapered structure facing the cleaning brush head.

3. The brush assembly as described in claim 2, characterized in that, The cone angle of the tapered structure is in the range of 5° to 15°.

4. The brush assembly as described in claim 1, characterized in that, The number of cleaning parts is multiple, and the multiple cleaning parts are spirally distributed on the outer surface of the mounting part; or, the multiple cleaning parts are distributed in a ring structure on the circumferential surface of the mounting part, the number of ring structures is at least two, and all the ring structures are spaced apart along the axial direction of the mounting part itself.

5. The brush assembly as described in claim 2, characterized in that, The conical structure has a third through hole on its circumferential surface. Compared to the mounting part, the third through hole is located on the part of the conical structure closer to the cleaning brush head.

6. The brush assembly as described in claim 5, characterized in that, The number of the third through holes is at least two; the at least two third through holes are spaced apart circumferentially along the tapered structure, and / or spaced apart axially along the tapered structure.

7. The brush assembly as described in any one of claims 1 to 6, characterized in that, The cleaning unit includes a plastic component with a tensile strength greater than 50 MPa.

8. A cleaning device, characterized in that, The cleaning device includes a brush assembly as described in any one of claims 1 to 7, wherein the mounting portion of the brush assembly has a first through hole arranged along its own axial direction, and the cleaning portion of the brush assembly has a second through hole arranged along its own axial direction, the second through hole communicating with the first through hole, and the first through hole being filled with colloid, at least a portion of the colloid solidifying to form the cleaning brush head.

9. The cleaning equipment as described in claim 8, characterized in that, The cleaning device also includes a power component that communicates with the first through hole to drive the colloid to flow to the second through hole.

10. The cleaning equipment as described in claim 8 or 9, characterized in that, The cleaning device also includes a heating component for heating the colloid in the first through hole to change it from a solid to a liquid state.

11. The cleaning equipment as claimed in claim 10, characterized in that, The heating assembly includes an electric heating element, which has a ring structure and is sleeved on the circumferential outer side of the brush assembly.

12. A battery production line, characterized in that, Includes the cleaning equipment as described in any one of claims 8 to 11.

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