Battery case inner wall cleaning system

Abstract

This application relates to the field of battery manufacturing technology and provides a battery casing inner wall cleaning system. The battery casing inner wall cleaning system includes: a cleaning mechanism, which includes a bracket, a driving component, and an air blowing device. The driving component is mounted on the bracket and drives the air blowing device to move vertically; and a loading mechanism, which clamps a battery casing with openings at both ends and places the battery casing in an upright position so that one end of the battery casing is aligned with the air blowing device. The air blowing device, driven by the driving component, extends into the battery casing through the opening and blows clean the inner wall of the battery casing. The upright position of the battery casing prevents secondary adhesion of detached foreign objects. The air blowing device moves within the battery casing while blowing air onto its inner wall, gradually cleaning the entire inner wall of the battery casing, achieving comprehensive cleaning of the inner wall and preventing problems such as internal short circuits and electrode damage caused by foreign objects during subsequent core assembly processes.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to a battery casing inner wall cleaning system. Background Technology

[0002] With the increasing demands for battery energy density and space utilization efficiency in electric vehicles, batteries with a narrow, rectangular, flat structure have become widely used. During the manufacturing process of this type of battery, after the battery casing is processed, its inner wall often retains foreign matter such as particles and debris generated during production. If these foreign matter are not effectively removed during subsequent core assembly processes, it can easily lead to problems such as internal short circuits and electrode damage, seriously affecting the battery's reliability and lifespan.

[0003] Currently, the common industry cleaning method involves laying the battery casing flat, blowing air into one end of the casing, and drawing air out from the other end, using the airflow to remove residual foreign matter from inside the casing. However, because the battery casing is laid flat in this cleaning method, foreign matter often adheres firmly to the inner wall of the casing due to electrostatic adsorption or surface friction. The effective range of existing air-blowing cleaning methods is mainly concentrated near the openings at both ends of the casing, and the cleaning effect on the middle section of the casing is significantly insufficient. It is difficult to achieve uniform cleaning of the entire inner wall surface, and foreign matter blown away by the airflow can easily re-adhere to the inner wall of the casing after falling, ultimately leaving foreign matter in the middle of the battery casing, leading to cell damage and battery short circuits, reducing the safety and stability of the battery product. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a battery casing inner wall cleaning system.

[0005] This application provides a battery casing inner wall cleaning system, comprising:

[0006] A cleaning mechanism, comprising a bracket, a drive component, and an air blowing device, wherein the drive component is mounted on the bracket and is connected to the air blowing device to drive the air blowing device to move vertically.

[0007] The feeding mechanism is used to clamp the battery case with openings at both ends and place the battery case in an upright position so that one end opening of the battery case is aligned with the air blowing device.

[0008] The blowing device can extend into the battery casing through the opening under the drive of the driving member and blow the inner wall of the battery casing.

[0009] Optionally, the blowing device includes a blowing head and an air source. The blowing head is connected to the driving member and is driven by the driving member to move in the vertical direction. The surface of the blowing head opposite to the inner wall of the battery case has an air outlet that communicates with the air source. Gas can be sprayed through the air outlet to blow onto the inner wall of the battery case.

[0010] Optionally, the battery casing includes adjacent first and second sidewalls;

[0011] The length dimension of the cross-section of the first sidewall is greater than the length dimension of the cross-section of the second sidewall;

[0012] The air blowing head has a plurality of first air outlet holes arranged side by side and spaced apart on the surface opposite to the first sidewall.

[0013] Optionally, the surface of the blowing head opposite to the second sidewall is provided with a second air outlet, and the diameter of the second air outlet is larger than the diameter of the first air outlet.

[0014] Optionally, the air blowing head has a plurality of third air outlets on its bottom surface along the vertical direction, and the plurality of third air outlets are arranged side by side and spaced apart.

[0015] Optionally, the cleaning mechanism further includes an air intake component and an air extraction device. The other end opening of the battery casing is located above the air intake component, and the air extraction device is connected to the air intake component so that the air intake component can adsorb foreign objects blown down by the air blowing device.

[0016] Optionally, the suction component is recessed on one side facing the blowing device to form a collection groove, and the groove wall of the collection groove is provided with a suction hole, which is connected to the suction device.

[0017] Optionally, the feeding mechanism includes a rotary drive and a clamping assembly disposed on the rotary drive. The clamping assembly is used to clamp the battery case. The rotary drive is configured to drive the clamping assembly to rotate so that the battery case clamped by the clamping assembly rotates until one end opening is aligned with the air blowing device.

[0018] Optionally, the rotary drive component includes a main body and a drive motor; the clamping assembly is rotatably connected to the main body, and the drive motor is mounted on the main body and drivenly connected to the clamping assembly to drive the clamping assembly to rotate relative to the main body;

[0019] And / or, the clamping assembly includes a support portion, a clamping head, and a driving portion, wherein the clamping head and the driving portion are both disposed on the support portion, and the driving portion can drive the clamping head to move to clamp the battery case, and the rotary drive member is driven connected to the support portion to drive the support portion, the clamping head, the driving portion, and the battery case thereon to rotate.

[0020] Optionally, the feeding mechanism further includes a slide rail and a translation drive component;

[0021] The rotary drive is slidably connected to the slide rail, and the translation drive is configured to drive the rotary drive to move to the cleaning mechanism so that one end opening of the battery case is aligned with the air blowing device.

[0022] The technical solution provided in this application has the following advantages compared with the prior art:

[0023] The battery casing inner wall cleaning system provided in this application embodiment has a drive unit and an air blowing device mounted on a bracket, with the battery casing clamped on a feeding mechanism. When the feeding mechanism adjusts the battery casing to an upright position, the air blowing device, driven by the drive unit, enters the interior of the battery casing through the opening. The air blowing device moves from one end of the battery casing to the other from top to bottom. During this process, the air blowing device continuously blows air onto the inner wall of the battery casing to gradually clean the entire inner wall, achieving comprehensive cleaning of the battery casing's inner wall. With the battery casing placed upright, the direction of gravity on foreign objects is parallel to the inner wall, so the inner wall of the battery casing does not support the foreign objects. Furthermore, foreign objects detached from the inner wall fall naturally without returning to the inner wall, avoiding the problem of secondary adhesion of foreign objects. By coordinating the cleaning and feeding mechanisms, the blowing device moves within the battery casing to blow and sweep the inner wall of the battery casing, thoroughly removing residual particles, debris, and other foreign objects. This prevents problems such as internal short circuits and electrode damage caused by foreign objects during subsequent core assembly processes, significantly improving battery reliability and lifespan, and ensuring the safety and stability of battery products. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1This is a schematic diagram of the internal wall cleaning system for the battery casing described in an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the air blowing head described in the embodiments of this application.

[0028] Among them, 11, bracket; 12, driving component; 13, blowing device; 131, blowing head; 132, first air outlet; 133, second air outlet; 134, third air outlet; 14, suction component; 141, collection groove; 142, suction hole; 21, rotation driving component; 211, main body; 212, drive motor; 22, clamping assembly; 221, bearing part; 222, clamping head; 23, slide rail; 24, translation driving component; 3, battery casing. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0031] Currently, the common method for cleaning the inner wall of a battery casing involves laying the casing flat, blowing air into one end, and drawing air out from the other, using the airflow to remove residual foreign matter. However, this method is problematic because battery casings, especially flat ones, have a long, narrow rectangular structure. When laid flat, the inner wall of the casing supports the foreign matter, and the foreign matter often adheres firmly to the inner wall due to electrostatic adsorption or surface friction. After being blown away by the airflow, the foreign matter falls perpendicular to the inner wall under gravity, making it easy for it to fall back onto the inner wall and re-adhere. Ultimately, this can leave foreign matter in the middle of the battery casing, leading to cell damage and short circuits, thus reducing the safety and stability of the battery product.

[0032] To address the aforementioned issues, this application provides an inner wall cleaning system for a battery casing, wherein the battery casing 3 can be the casing of a long, narrow blade-shaped battery, the battery casing 3 has a cuboid structure and is a cylindrical structure with openings at both ends.

[0033] Reference Figure 1 and Figure 2As shown, the battery casing inner wall cleaning system includes a cleaning mechanism and a feeding mechanism. The feeding mechanism is located on one side of the cleaning mechanism to move the battery casing 3 to the cleaning mechanism. The cleaning mechanism can blow and sweep the inner wall of the battery casing 3 to remove residual particles, debris and other foreign objects on the inner wall of the battery casing 3.

[0034] like Figure 1 As shown in the embodiment of this application, the cleaning mechanism includes a bracket 11, a driving member 12, and an air blowing device 13. The driving member 12 is installed on the bracket 11 and drives the air blowing device 13 to move vertically. The feeding mechanism can clamp the battery case 3 with openings at both ends and place the battery case 3 in a vertical position so that one end opening of the battery case 3 is aligned with the air blowing device 13.

[0035] In specific use, the battery casing inner wall cleaning system provided in this application embodiment clamps the battery casing 3 onto the feeding mechanism, which places the battery casing 3 in an upright position. At this time, the opening at the top of the battery casing 3 is aligned with the air blowing device 13. The driving member 12 drives the air blowing device 13 to move in the vertical direction, so that the air blowing device 13 enters the interior of the battery casing 3 through the opening of the battery casing 3 and moves from the top to the bottom of the battery casing 3. The air blowing device 13 is simultaneously activated to blow air toward the inner wall of the battery casing 3, thereby thoroughly cleaning the foreign objects on the inner wall of the battery casing 3.

[0036] The battery casing inner wall cleaning system provided in this application embodiment uses a drive unit 12 to drive an air blowing device 13 to enter the battery casing 3 through an opening in the vertically placed battery casing 3. The air blowing device 13 moves inside the battery casing 3 and continuously blows air onto the inner wall of the battery casing 3 to gradually clean the entire inner wall of the battery casing 3, achieving comprehensive cleaning of the inner wall of the battery casing 3. Since the battery casing 3 is placed vertically, the direction of gravity of foreign objects is parallel to the inner wall, so the inner wall of the battery casing 3 does not support the foreign objects, and the foreign objects detached from the inner wall fall naturally without falling back onto the inner wall, avoiding the problem of secondary adhesion of foreign objects. Through the cooperation of the cleaning mechanism and the feeding mechanism, the air blowing device 13 moves inside the battery casing 3 to blow and clean the inner wall of the battery casing 3, thoroughly removing residual particles, debris, and other foreign objects from the inner wall of the battery casing 3. This avoids problems such as internal short circuits and electrode damage caused by foreign objects in subsequent core assembly processes, significantly improving the reliability and service life of the battery and ensuring the safety and stability of the battery product.

[0037] In this embodiment, the support 11 of the cleaning mechanism can be a metal frame, vertically mounted on the work surface or ground. The bottom of the support 11 is connected to the work surface or ground by bolts, so that the support 11 can stably support the drive unit 12 and the air blowing device 13 on the ground. Optionally, in this embodiment, the end of the support 11 can extend towards the cleaning mechanism to form a mounting end, and the air blowing device 13 is mounted on the mounting end, so that there is a large space below the air blowing device 13 to provide space for the air blowing device 13 to move up and down and space for the battery case 3 to be placed.

[0038] The driving component 12 can be a motor or a telescopic cylinder with a telescopic end. The telescopic end of the motor extends and retracts to move the air blowing device 13, or the telescopic cylinder moves the air blowing device 13 after activation. The driving component 12 is connected to the bracket 11 by bolts. The output end of the driving component 12 is provided with a connecting seat. The air blowing device 13 is mounted on the connecting seat. The output end of the driving component 12 moves the connecting seat to move the air blowing device 13 in the vertical direction, so that the air blowing device 13 can extend into the battery case 3 through the opening and move inside the battery case 3 under the drive of the driving component 12. Alternatively, the air blowing device 13 can be provided with a screw hole, and the air blowing device 13 can be threadedly connected to the output end of the driving component 12, so that the output end of the driving component 12 can drive the air blowing device 13 to move.

[0039] During the cleaning process, the drive unit 12 and the air blowing device 13 are linked. When the air blowing device 13 starts blowing air into the battery case 3, the drive unit 12 starts synchronously, and its output end drives the air blowing device 13 to move slowly in the vertical direction.

[0040] Reference Figure 1 and Figure 2 As shown, in some embodiments, the drive member 12 includes a cylinder having a telescopic end that can extend and retract in a vertical direction, and the blowing device 13 is fixedly connected to the telescopic end.

[0041] With this configuration, the cylinder is driven by compressed gas, eliminating the need for a complex transmission mechanism. It can directly drive the air blowing device 13 to move in the vertical direction, simplifying the overall structure of the cleaning mechanism and reducing the manufacturing cost and maintenance difficulty of the equipment.

[0042] Specifically, the cylinder includes a cylinder body and a piston rod. The piston rod is movably disposed in the cylinder body and slides relative to the cylinder body in the vertical direction. The cylinder body is fixedly connected to the bracket 11, and the piston rod is fixedly connected to the air blowing device 13. When the piston rod slides relative to the cylinder body, it can drive the air blowing device 13 to move in the vertical direction.

[0043] Reference Figure 1 and Figure 2As shown, in some embodiments, the blowing device 13 includes a blowing head 131 and an air source. The blowing head 131 is connected to the driving member 12. The surface of the blowing head 131 opposite to the inner wall of the battery case 3 has an air outlet that communicates with the air source. The gas is sprayed through the air outlet and blown onto the inner wall of the battery case 3.

[0044] With this configuration, the gas blown out by the air blown head 131 can directly impact the inner wall of the battery casing 3, and the air source can continuously supply air to ensure stable pressure of the gas blown out by the air blown head 131. At the same time, the driving component 12 drives the air blown head 131 to move vertically, so that the airflow blown out of the air outlet sweeps across the inner wall of the battery casing 3 along the length direction (i.e., the vertical direction), achieving uniform blowing across the entire inner wall surface of the battery casing 3.

[0045] Specifically, the air blower head 131 is made of metal and has an overall rectangular structure. The size of the air blower head 131 is determined according to the opening of the battery casing 3 to ensure that the air blower head 131 can pass through the opening of the battery casing 3. When the air blower head 131 enters the opening, the central axis of the air blower head 131 coincides with the central axis of the opening, so that the gas ejected from the air outlet on the air blower head 131 can cover the inner wall of the battery casing 3, thereby achieving a complete cleaning of the inner wall of the battery casing 3.

[0046] In this embodiment, the top of the blowing head 131 is provided with a connection interface, which is connected to the output end of the drive component 12 to fix the blowing head 131 and the drive component 12. The blowing head 131 has an airflow channel inside and a vent interface on the blowing head 131, which is connected to the airflow channel. The air source is an air compressor, which is connected to the vent interface through a conduit. The air compressor supplies air to the airflow channel through the conduit and the vent interface, so that the gas in the airflow channel is blown out through the air outlet.

[0047] The air outlet of the air blower 131 can be set on the surface opposite to the inner wall of the battery case 3, so that when the air blower 131 is located inside the battery case 3, the gas blown by the air outlet can directly blow onto the inner wall of the battery case 3.

[0048] The air blower 131 has air outlets on multiple surfaces along the horizontal direction, allowing the air blower 131 to blow air in multiple directions through multiple air outlets, enabling the air blower 131 to blow air onto multiple inner wall surfaces of the battery casing 3.

[0049] During the cleaning process, the air source delivers compressed gas to the air blower 131, and the compressed gas is ejected from multiple air outlets through the airflow channel. The gas ejected from the air outlet on one side of the air blower 131 can form a uniform airflow surface. The air blower 131 can form airflow surfaces distributed in multiple directions on the horizontal plane through multiple air outlets. Each inner wall of the battery casing 3 corresponds to an airflow surface. The driving component 12 drives the air blower 131 to move slowly in the vertical direction (i.e., along the length of the battery casing 3), so that the uniform airflow surface can move along the length of the battery casing 3, and each airflow surface can gradually blow and clean the corresponding part of the inner wall of the battery casing 3, achieving comprehensive coverage and cleaning of the entire inner wall surface.

[0050] Reference Figure 1 and Figure 2 As shown, in some embodiments, the battery casing 3 includes an adjacent first sidewall and a second sidewall; the length dimension of the cross-section of the first sidewall is greater than the length dimension of the cross-section of the second sidewall.

[0051] Specifically, the battery casing 3 has a cuboid structure. The length, width and thickness directions of the battery casing 3 are perpendicular to each other. When the battery casing 3 is set in an upright position, the thickness and width directions of the battery casing 3 are set in the horizontal direction, and the length direction of the battery casing 3 is set in the vertical direction.

[0052] The battery casing 3 has two opposite sidewalls in the thickness direction as the first sidewall and two opposite sidewalls in the width direction as the second sidewall. Taking the plane perpendicular to the length direction of the battery casing 3 as the reference plane, the cross-section of the first sidewall and the second sidewall with the reference plane is the cross-section. The length dimension of the cross-section of the first sidewall is the width dimension of the battery casing 3, and the length dimension of the cross-section of the second sidewall is the thickness dimension of the battery casing 3.

[0053] The length of the cross-section of the first sidewall is greater than the length of the cross-section of the second sidewall, which means that the width of the battery casing 3 is greater than its thickness. Since the battery casing 3 is a long and narrow cuboid structure, the area of ​​the first sidewall is greater than the area of ​​the second sidewall among the four sides of the battery casing 3.

[0054] Since the length of the cross-section of the first sidewall is greater than that of the cross-section of the second sidewall, the surface of the air blower 131 opposite to the first sidewall is provided with a plurality of first air outlets 132 arranged side by side and spaced apart, so that the air outlet surface formed by the plurality of first air outlets 132 can be adapted to the larger area of ​​the first sidewall, ensuring that the air blower 131 has a good cleaning effect on each position of the first sidewall.

[0055] Reference Figure 1 and Figure 2 As shown, in some embodiments, the surface of the blowing head 131 opposite to the second sidewall is provided with a second air outlet 133, and the diameter of the second air outlet 133 is larger than the diameter of the first air outlet 132.

[0056] With this configuration, the area of ​​the second sidewall is relatively small, allowing the airflow from the larger second air outlet 133 to cover the second sidewall. This ensures that the airflow from the second air outlet 133 can thoroughly clean the second sidewall.

[0057] Specifically, the area of ​​the second sidewall of the battery casing 3 along the width direction is smaller than the area of ​​the first sidewall. The shape of the air blower 131 is adapted to the shape of the inner wall of the battery casing 3. The area of ​​the surface of the air blower 131 opposite to the second sidewall is limited, making it difficult to set multiple second air outlets 133. Increasing the diameter of the second air outlet 133 increases the flow rate of the gas blown out from the second air outlet 133, so that the airflow blown out from the second air outlet 133 can have a better cleaning effect on the second sidewall.

[0058] The connection between the first sidewall and the second sidewall is usually an arc-shaped transition surface. The shape of the air blower 131 is adapted to the shape of the battery case 3, that is, the air blower 131 extends along the width direction of the battery case 3, so that the end face of the air blower 131 with the second air outlet 133 is close to the transition surface of the inner wall of the battery case 3, so that the larger flow of gas blown out by the second air outlet 133 can flow along the second sidewall to the transition surface, so as to effectively remove foreign objects on the transition surface of the inner wall of the battery case 3.

[0059] Reference Figure 1 and Figure 2 As shown, in some embodiments, the air blowing head 131 has a plurality of third air outlet holes 134 on its bottom surface along the vertical direction, and the plurality of third air outlet holes 134 are arranged side by side and spaced apart.

[0060] Specifically, the bottom surface of the air blower 131 is provided with a plurality of third air outlets 134, from which gas flowing along the length direction of the battery case 3 is blown out, so that the gas blown out from the third air outlets 134 can accelerate the gas flow inside the battery case 3 and guide foreign objects that have fallen off the inner wall of the battery case 3 to move toward the bottom of the battery case 3.

[0061] Reference Figure 1 and Figure 2 As shown, in some embodiments, the cleaning mechanism further includes an air suction member 14 and an air extraction device. The air suction member 14 is disposed below the air blowing device 13, and the other end opening of the battery case 3 is located above the air suction member 14. The air extraction device is connected to the air suction member 14 so that the air suction member 14 can adsorb foreign objects blown down by the air blowing device 13.

[0062] With this configuration, the suction of the air extraction device enhances the airflow at the battery casing 3 and drives the foreign objects falling on the battery casing 3 toward the suction component 14, making it easier to collect the falling foreign objects and preventing them from scattering from inside the battery casing 3.

[0063] Specifically, the distance between the suction component 14 and the blowing device 13 is determined based on the length of the battery case 3, ensuring that the battery case 3 can be smoothly positioned between the blowing device 13 and the suction component 14 after being placed vertically. After the battery case 3 is placed vertically, the opening at the top of the battery case 3 is aligned with the blowing device 13, and the opening at the bottom of the battery case 3 is aligned with the suction component 14. The horizontal dimensions of the suction component 14 are adapted to the thickness and width dimensions of the battery case 3, ensuring that the size of the suction component 14 is greater than or equal to the size of the bottom opening of the battery case 3.

[0064] An air extraction channel is formed inside the air intake component 14. An opening is formed on the upper surface of the air intake component 14. The air extraction device is connected to the air extraction channel through a pipe. After the air extraction device is started, it can extract the gas in the air extraction channel to form a negative pressure around the opening.

[0065] The extraction device can be a vacuum cleaner, which connects to the extraction channel of the suction component 14 via a suction hose, forming a complete extraction path. At the start of the cleaning operation, the blowing device 13 blows air into the battery casing 3, while the extraction device activates, drawing air from the battery casing 3 through the suction component 14. The air blown out by the blowing device 13 carries foreign objects from the inner wall of the battery casing 3 and is discharged through the opening at the bottom of the battery casing 3. Due to the suction effect of the extraction device, the airflow blowing from the bottom of the battery casing 3 carries foreign objects towards the suction component 14, causing the foreign objects to accumulate at the suction component 14 for easy collection of the foreign objects discharged from the battery casing 3.

[0066] As the blowing device 13 moves vertically, the suction device continues to maintain a suction state, guiding the gas discharged from the battery case 3 toward the suction component 14.

[0067] Reference Figure 1 and Figure 2 As shown, in some embodiments, the suction member 14 is recessed on the side facing the blowing device 13 to form a collection groove 141, and the groove wall of the collection groove 141 is provided with a suction hole 142, which is connected to the suction device.

[0068] With this configuration, the space inside the collection tank 141 can be used to store foreign objects that fall from the battery casing 3; the suction port 142 creates a negative pressure environment inside the collection tank 141 to attract foreign objects that are floating out of the battery casing 3.

[0069] Specifically, the collection tank 141 can be a rectangular groove, and the air intake hole 142 can be set on the bottom of the collection tank 141 or on the side wall of the collection tank 141.

[0070] When the battery case 3 is adjusted to be placed in an upright position, the bottom of the battery case 3 is positioned opposite the opening of the collection tank 141. After the air extraction device is started, the gas in the collection tank 141 enters the air extraction device through the air suction hole 142 on the tank wall, so that the collection tank 141 is in a negative pressure state, so as to guide the gas discharged from the battery case 3 into the collection tank 141.

[0071] After the airflow blown out by the air blowing device 13 impacts the inner wall of the battery casing 3, the foreign objects on the inner wall of the battery casing 3 detach from the inner wall; the heavier foreign objects fall naturally under their own gravity and fall into the collection tank 141 through the opening at the bottom of the battery casing 3; the lighter foreign objects fly out from the bottom of the battery casing 3 under the action of the airflow inside the battery casing 3 and enter the collection tank 141 under the guidance of the negative pressure environment at the collection tank 141.

[0072] Reference Figure 1 and Figure 2 As shown, in some embodiments, the feeding mechanism includes a rotary drive 21 and a clamping assembly 22 disposed on the rotary drive 21. The clamping assembly 22 is used to clamp the battery case 3. The rotary drive 21 is configured to drive the clamping assembly 22 to rotate so that the battery case 3 clamped by the clamping assembly 22 rotates until one end opening is aligned with the air blowing device 13.

[0073] With this configuration, the rotary drive 21 drives the clamping assembly 22 to rotate, ensuring that the battery case 3 can be rotated to a vertical position. This avoids inaccurate posture caused by human error during manual adjustment and ensures that the battery case 3 is accurately aligned with the air blowing device 13, thus guaranteeing the smooth progress of subsequent cleaning operations. The clamping assembly 22 is used to fix the battery case 3, preventing it from shifting or falling off during the rotation or movement of the support part 221.

[0074] Specifically, the rotary drive component 21 includes a main body 211 and a drive motor 212. The clamping assembly 22 is connected to the main body 211 via a rotating shaft. The output end of the drive motor 212 is connected to the rotating shaft for transmission, so that the drive motor 212 can drive the clamping assembly 22 to rotate.

[0075] Alternatively, the rotary drive component 21 can be a robotic arm, and the gripping assembly 22 can be a gripper mounted at the end of the robotic arm. The robotic arm can rotate on multiple axes and move in multiple directions. After the gripping assembly 22 grips the battery case 3, the battery case 3 is initially in a flat position. Then, the robotic arm moves and rotates around a horizontal axis, causing the gripping assembly 22 to rotate the battery case 3 to a vertical position. The drive motor 212 can be a servo motor. By adjusting the rotation angle of the servo motor's output end, it can be ensured that the battery case 3 can be accurately rotated to a vertical position.

[0076] Reference Figure 1 and Figure 2 As shown, in some embodiments, the rotary drive 21 includes a main body 211 and a drive motor 212; the clamping assembly 22 is rotatably connected to the main body 211, and the drive motor 212 is mounted on the main body 211 and driven to the clamping assembly 22 to drive the clamping assembly 22 to rotate relative to the main body 211.

[0077] With this configuration, the drive motor 212 controls the rotation of the clamping component 22 relative to the main body 211, realizing the automated rotation of the clamping component 22, simplifying the operation of driving the clamping component 22 to rotate, and avoiding the errors caused by manually rotating the clamping component 22.

[0078] Specifically, the main body 211 can be a frame structure or a platform structure, and the drive motor 212 can be a servo motor, which has advantages such as high control precision, stable speed, and fast response speed. The output power of the servo motor is determined based on the total weight of the clamping assembly 22 and the battery casing 3.

[0079] The drive motor 212 can also be equipped with a controller. The controller has a detection end that can detect the rotation angle of the output end of the drive motor 212. The drive motor 212 is electrically connected to the controller, so that the controller controls the rotation angle of the output end of the drive motor 212. The controller ensures that the battery case 3 can be accurately rotated to a vertical position based on the detection data from the detection end.

[0080] The clamping assembly 22 is connected to the main body 211 via a rotating shaft. The output shaft of the drive motor 212 is connected to the clamping assembly 22, enabling the drive motor 212 to drive the rotating shaft to rotate. Alternatively, the output shaft of the drive motor 212 can be connected to the clamping assembly 22 via a flexible coupling. This flexible coupling can compensate for the coaxiality error between the output shaft of the drive motor 212 and the rotating shaft of the bearing part 221, reducing vibration and ensuring smooth transmission. Alternatively, the output shaft of the drive motor 212 can be equipped with a first gear, and the rotating shaft between the clamping assembly 22 and the main body 211 can be equipped with a second gear. The first gear and the second gear mesh, allowing the drive motor 212 to drive the rotating shaft of the clamping assembly 22, thus rotating the clamping assembly 22.

[0081] Reference Figure 1 and Figure 2 As shown, in some embodiments, the clamping assembly includes a support portion 221, a clamping head 222, and a driving portion. The clamping head 222 and the driving portion are both disposed on the support portion 221, and the driving portion can drive the clamping head 222 to move to clamp the battery case 3. The rotation driving member 21 is connected to the support portion 221 to drive the support portion 221, the clamping head 222, the driving portion, and the battery case 3 to rotate.

[0082] With this configuration, the support part 221 is used to place the battery case 3 and serves as the mounting base for the clamping head 222; the drive part drives the clamping head 222 to move, which completes the clamping operation of the battery case 3, realizing automated control of the clamping action of the battery case 3 and improving the efficiency and accuracy of the clamping operation.

[0083] Specifically, the support part 221 is a plate structure, and the battery case 3 can be placed on one side of the support part 221. The middle part of the support part 221 is rotatably connected to the main body part 211 through a rotating shaft. A bearing can be installed between the rotating shaft and the main body part 211 to reduce friction during rotation and enable the support part 221 to rotate flexibly.

[0084] The clamping head 222 may include two clamping jaws, which are located on opposite sides of the support portion 221. The clamping jaws are slidably connected to the support portion 221. The output end of the drive portion is connected to each clamping jaw, so that the drive portion can drive the two clamping jaws to move closer or further apart. The battery case 3 is placed between the two clamping jaws. When the two clamping jaws move closer together, they abut against the two sides of the battery case 3 along the width direction, so that the two clamping jaws clamp the battery case 3.

[0085] Alternatively, the clamping head 222 can include four grippers, the support portion 221 can be a rectangular plate, the four grippers are located at the four edges of the support portion 221, the drive portion is connected to the four grippers, and the battery case 3 is placed between the four grippers. When the four grippers approach each other, they abut against the four sides of the battery case 3, so that the four grippers clamp the battery case 3; and the grippers at the opening of the battery case 3 will not block the opening of the battery case 3.

[0086] Alternatively, multiple grippers can be provided on the opposite sides of the support portion 221. After the battery case 3 is placed on the support portion 221, the drive portion drives the multiple grippers on the opposite sides to move closer to each other so that the multiple grippers clamp the battery case 3.

[0087] A slider is provided at the bottom of the gripper, and a groove is provided on the support part 221. The slider is slidably connected to the groove so that the gripping head 222 can slide along the groove. The groove extends along the edge of the support part 221 toward the center. When multiple grippers are close to each other, they can abut against the battery case 3 to grip the battery case 3.

[0088] The drive unit can be selected to include multiple cylinders, each with a telescopic end. The cylinders are fixed on the support unit 221, and each gripper is connected to the telescopic end of one cylinder, so that multiple cylinders can drive multiple grippers to move closer or further apart. Alternatively, the drive unit can include multiple motors, with one motor mounted on each gripper. A rack is provided in the slide groove on the support unit 221, and a gear is provided at the output end of the motor on the gripper. The gear meshes with the rack, and the motor drives the gear to rotate, thereby driving the gripper to slide along the slide groove.

[0089] The multiple grippers of the gripping head 222 cooperate with each other to apply a stable gripping force to the battery case 3 from different directions, thereby fixing the battery case 3 to the support portion 221. When it is necessary to remove the battery case 3, the multiple grippers of the gripping head 222 move away from each other, so that the gripping head 222 disengages from the battery case 3, and the operator can then remove the battery case 3 from the support portion 221.

[0090] Reference Figure 1 and Figure 2 As shown, in some embodiments, the feeding mechanism further includes a slide rail 23 and a translation drive component 24; the rotation drive component 21 is slidably connected to the slide rail 23, and the translation drive component 24 is configured to drive the rotation drive component 21 to the cleaning mechanism so that one end opening of the battery case 3 is aligned with the air blowing device 13.

[0091] With this configuration, the feeding mechanism can clamp the battery case 3 at a position on the slide rail 23 away from the air blowing device 13. Then, the rotation drive 21 can rotate the battery case 3 to an upright position near the air blowing device 13, providing the feeding mechanism with more operating space when clamping the battery case 3 and preventing collisions with the air blowing device 13. Furthermore, by setting up the slide rail 23 and the translation drive component 24, the feeding mechanism achieves automated translation and transfer of the battery case 3, significantly improving the accuracy and efficiency of the transfer.

[0092] Specifically, slide rail 23 is a linear guide rail, which consists of a guide rail body and a slider. The guide rail body is rectangular in shape, and its length is determined according to the layout of the cleaning system. The guide rail body has grooves on opposite sides in the horizontal direction. The slider has a plate and two side plates. The two side plates are located on opposite edges of the plate, and a limiting block protrudes from one side of the opposite side plate. The two side plates are respectively located on both sides of the guide rail body, so that the two limiting blocks are slidably connected to the two grooves, so that the plate is located on the top side of the guide rail body. The rotary drive 21 is fixedly connected to the plate. The two limiting blocks slide in the two grooves, causing the plate to drive the main body 211 to slide along the guide rail body.

[0093] The translation drive component 24 uses a ball screw transmission mechanism, which includes a screw, a nut, and a motor. The screw extends along the extension direction of the slide rail 23 and is rotatably mounted on the slide rail 23. The nut is sleeved on the outside of the screw and threadedly connected to it. The nut is fixedly connected to the main body 211. The output end of the motor is connected to the screw, enabling the motor to drive the screw to rotate. The rotation of the screw drives the nut to move along the screw, thereby causing the rotary drive component 21 to slide along the slide rail 23.

[0094] Alternatively, the translation drive component 24 can include a motor, a rack and a gear. The slide rail 23 is provided with a rack that extends along the length of the slide rail 23. The motor is mounted on the rotary drive component 21, and the output end of the motor is fixedly connected to the gear, which meshes with the rack. When the motor drives the gear to rotate, the gear and the rack interact to push the rotary drive component 21 to slide along the slide rail 23.

[0095] When the battery casing inner wall cleaning system provided in this application embodiment is used, the translation drive component 24 first drives the main body 211 to move to the end of the slide rail 23 away from the blowing device 13. At this time, the support part 221 is laid flat, and the battery casing 3 is placed on the support part 221. The drive part drives the multiple jaws of the clamping head 222 to move closer to each other, so that the multiple jaws clamp the battery casing 3.

[0096] Then, the translation drive component 24 drives the main body 211 to move to the position of the slide rail 23 close to the air blowing device 13, so that the battery case 3 on the support part 221 is below the air blowing device 13; at this time, the drive motor 212 drives the support part 221 to rotate, so that the support part 221 rotates to a vertically set posture, so that the battery case 3 is placed in a vertical state, and the opening of the battery case 3 is aligned with the air blowing head 131 below the air blowing head 131.

[0097] The driving component 12 drives the air blowing head 131 to move downward to insert into the opening at the top of the battery case 3. The air blowing head 131 slides vertically inside the battery case 3. The air source blows air towards the inner wall of the battery case 3 through the first air outlet 132 and the second air outlet 133, and blows air into the inner cavity of the battery case 3 through the third air outlet 134.

[0098] The airflow from the first vent 132 and the second vent 133 impacts the inner wall of the battery casing 3, causing foreign objects on the inner wall of the battery casing 3 to fall off. The fallen foreign objects fall out of the opening at the bottom of the battery casing 3 and fall into the collection groove 141.

[0099] The airflow from the third vent 134 forms a downward guiding airflow inside the battery casing 3. The lighter foreign objects among the detached foreign objects are in a floating state and move with the guiding airflow. After the guiding airflow carries the floating foreign objects out of the opening at the bottom of the battery casing 3, the floating foreign objects are sucked into the collection tank 141.

[0100] Alternatively, a robotic arm can be selected as the feeding mechanism. The end of the robotic arm is connected to the battery case 3. The robotic arm can drive the battery case 3 to move and rotate so that when the battery case 3 moves to the bottom of the air blowing device 13, the battery case 3 can be rotated to an upright state by the robotic arm, so that the opening at the end of the battery case 3 faces the air blowing device 13 in the vertical direction.

[0101] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0102] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A battery casing inner wall cleaning system, characterized in that, include: The cleaning mechanism includes a bracket (11), a drive (12) and an air blowing device (13). The drive (12) is mounted on the bracket (11) and drives the air blowing device (13) to move the air blowing device (13) in the vertical direction. The feeding mechanism is used to clamp the battery case (3) with openings at both ends and place the battery case (3) in a vertical position so that one end opening of the battery case (3) is aligned with the air blowing device (13). The blowing device (13) can extend into the battery case (3) through the opening under the drive of the drive member (12) and blow the inner wall of the battery case (3).

2. The battery casing inner wall cleaning system according to claim 1, characterized in that, The blowing device (13) includes a blowing head (131) and an air source. The blowing head (131) is connected to the driving member (12) and is driven by the driving member (12) to move in the vertical direction. The surface of the blowing head (131) opposite to the inner wall of the battery case (3) is provided with an air outlet that communicates with the air source. Gas can be sprayed through the air outlet to the inner wall of the battery case (3).

3. The battery casing inner wall cleaning system according to claim 2, characterized in that, The battery casing (3) includes adjacent first sidewalls and second sidewalls; The length dimension of the cross-section of the first sidewall is greater than the length dimension of the cross-section of the second sidewall; The air blowing head (131) has a plurality of first air outlet holes (132) arranged side by side and spaced apart on the surface opposite to the first sidewall.

4. The battery casing inner wall cleaning system according to claim 3, characterized in that, The blowing head (131) has a second air outlet (133) on the surface opposite to the second sidewall, and the diameter of the second air outlet (133) is larger than the diameter of the first air outlet (132).

5. The battery casing inner wall cleaning system according to claim 3, characterized in that, The air blowing head (131) has a plurality of third air outlets (134) on its bottom surface in the vertical direction, and the plurality of third air outlets (134) are arranged side by side and spaced apart.

6. The battery casing inner wall cleaning system according to claim 1, characterized in that, The cleaning mechanism also includes an air intake (14) and an air extraction device. The other end opening of the battery case (3) is located above the air intake (14). The air extraction device is connected to the air intake (14) so ​​that the air intake (14) can adsorb foreign objects blown down by the air blowing device (13).

7. The battery casing inner wall cleaning system according to claim 6, characterized in that, The suction component (14) is recessed on the side facing the blowing device (13) to form a collection groove (141). The groove wall of the collection groove (141) is provided with a suction hole (142), which is connected to the suction device.

8. The battery casing inner wall cleaning system according to any one of claims 1 to 6, characterized in that, The feeding mechanism includes a rotary drive (21) and a clamping assembly (22) disposed on the rotary drive (21). The clamping assembly (22) is used to clamp the battery case (3). The rotary drive (21) is configured to drive the clamping assembly (22) to rotate so that the battery case (3) clamped by the clamping assembly (22) rotates to align one end opening with the air blowing device (13).

9. The battery casing inner wall cleaning system according to claim 8, characterized in that, The rotary drive (21) includes a main body (211) and a drive motor (212); the clamping assembly (22) is rotatably connected to the main body (211), and the drive motor (212) is mounted on the main body (211) and drivenly connected to the clamping assembly (22) to drive the clamping assembly (22) to rotate relative to the main body (211); And / or, the clamping assembly includes a support portion (221), a clamping head (222), and a driving portion. The clamping head (222) and the driving portion are both disposed on the support portion (221), and the driving portion can drive the clamping head (222) to move to clamp the battery case (3). The rotation drive member (21) is connected to the support portion (221) to drive the support portion (221) and the clamping head (222), the driving portion, and the battery case (3) to rotate.

10. The battery casing inner wall cleaning system according to claim 8, characterized in that, The feeding mechanism also includes a slide rail (23) and a translation drive component (24); The rotary drive (21) is slidably connected to the slide rail (23), and the translation drive (24) is configured to drive the rotary drive (21) to move to the cleaning mechanism so that one end opening of the battery case (3) is aligned with the air blowing device (13).

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