Cleaning equipment for battery cell shell

Abstract

The utility model discloses cleaning equipment for a battery cell shell, which comprises a hydrocarbon cleaning device for cleaning the battery cell shell, and the hydrocarbon cleaning device comprises a conveying line; the battery cell placing device is arranged on the conveying line, at least two cleaning cavities for placing battery cell shells are formed in the battery cell placing device, and when the conveying line drives the cleaning cavities to rotate, a hydrocarbon cleaning agent of the hydrocarbon cleaning device can immerse at least one cleaning cavity. According to the utility model, the conveyor line is arranged to drive the hollow cleaning bracket to move and rotate, so that the cleaning cavities which are uniformly distributed in the cleaning bracket can alternately enter the cleaning tank to be in contact with a hydrocarbon cleaning agent, and then the battery cell shells which are uniformly placed in the cleaning cavities can be alternately in contact with the hydrocarbon cleaning agent to be cleaned; and the spraying system can alternately clean the inner surface and the outer surface of the battery cell shell, so that the cleaning quality is improved, and the cleaning efficiency is improved while the cleaning quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery cell cleaning, in particular to a device for cleaning a cell shell. Background Art

[0002] In new energy vehicles, battery cells are typically lithium-ion batteries, which offer advantages such as high energy density, long service life, and low self-discharge. They consist of positive and negative electrodes, a separator, an electrolyte, and a cell casing. During the manufacturing process, the cell casing often contains dust, metal shavings, oil, and other impurities. These contaminants can cause poor electrical connections, such as increased contact resistance and excessive battery overheating; internal short circuits, which can even lead to fires or explosions; and impaired sealing rings, resulting in poor sealing and affecting the cell's internal components.

[0003] In the prior art, a hydrocarbon cleaning device is typically used to clean battery cell shells. The hydrocarbon cleaning device uses hydrocarbons as a cleaning medium to remove grease, oil, and other contaminants from the surface of the battery cell shell. The main processes include: immersion cleaning, spray cleaning, ultrasonic cleaning, overall rinsing, drying, and checking the cleanliness of the battery cell shell. During the process of cleaning the battery cell shell with the hydrocarbon cleaning device, the entire battery cell shell needs to be immersed in a cleaning tank filled with hydrocarbon cleaning agent. Secondly, during spray cleaning, the hydrocarbon cleaning agent needs to be evenly sprayed onto the inner and outer surfaces of the battery cell shell with a high-pressure spray gun. In order to ensure the cleaning effect, the existing production process usually only places one layer of battery cell shell to be cleaned into the hydrocarbon cleaning device. Although the cleaning effect is good, the cleaning efficiency is low, which affects the overall production efficiency of the battery cell production line. Utility Model Content

[0004] The utility model solves the problem that the existing hydrocarbon cleaning device has low efficiency in cleaning the battery shell, and provides a battery shell cleaning device. The specific technical solution is as follows:

[0005] A battery cell shell cleaning device includes: a hydrocarbon cleaning device for cleaning the battery cell shell, the hydrocarbon cleaning device includes a conveyor line; a battery cell placement device arranged on the conveyor line, the battery cell placement device forming at least two cleaning cavities for placing the battery cell shells, and when the conveyor line drives the cleaning cavities to rotate, the hydrocarbon cleaning agent of the hydrocarbon cleaning device can immerse at least one cleaning cavity.

[0006] Furthermore, the battery cell placement device also includes a cleaning bracket whose radial outer surface is tangent to the conveying surface of the conveyor line. The cleaning bracket is a hollow structure, and the cleaning cavity is arranged inside the cleaning bracket. The hydrocarbon cleaning agent can flow through the cleaning bracket and the cleaning cavity along the radial direction of the cleaning bracket, and the axial direction of the battery cell shell is parallel to the radial cross-section of the cleaning bracket.

[0007] Preferably, the battery cell placement device also includes: a placement basket arranged inside the cleaning cavity, the placement basket is a hollow structure, and at least one cavity for placing the battery cell shell is formed inside the placement basket, and the cleaning bracket can limit the movement of the battery cell shell placed inside the placement basket relative to the placement basket; a limit member connected to the cleaning bracket, the limit member forms a switch structure on the cleaning bracket, and the switch structure can control the movement of the placement basket relative to the cleaning bracket.

[0008] Preferably, the axis of the cleaning bracket is perpendicular to the conveying direction of the conveyor line, the axes of the cleaning cavity, the placement basket and the cleaning bracket are parallel, and the placement basket moves relative to the cleaning bracket along the axis of the cleaning cavity.

[0009] Preferably, the cleaning cavity forms an open end at one axial end surface of the cleaning bracket, and the switch structure is provided at one axial end surface of the cleaning bracket. The switch structure can limit the opening size of the open end of the cleaning cavity.

[0010] Preferably, the hydrocarbon cleaning device also includes a hydrocarbon cleaning assembly for cleaning the battery cell shell, which is arranged at the end of the conveyor line. The battery cell placement device moved to the end of the conveyor line and placed with the battery cell shell rotates under the drive of the conveyor line, thereby driving the battery cell shell to rotate inside the hydrocarbon cleaning assembly.

[0011] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0012] The utility model provides a conveyor line to drive the hollow cleaning bracket to move and rotate, so that the evenly distributed cleaning cavities inside it can alternately enter the cleaning tank and contact the hydrocarbon cleaning agent, so that the battery cell shells evenly placed in the cleaning cavity can alternately contact the hydrocarbon cleaning agent for cleaning, and the spray system can alternately clean the inner and outer surfaces of the battery cell shells to improve the cleaning quality, thereby improving the cleaning efficiency while ensuring the cleaning quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of an embodiment of the utility model;

[0014] Figure 2 This is a schematic structural diagram of an embodiment of a battery cell placement device;

[0015] Figure 3 A top view of an embodiment of a placement basket.

[0016] In the figure: 1. Hydrocarbon cleaning device; 2. Battery cell placement device; 3. Battery cell housing; 11. Hydrocarbon cleaning assembly; 12. Conveying line; 21. Cleaning bracket; 22. Cleaning cavity; 23. Placement basket; 24. Limiting piece. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0019] like Figure 1 As shown, this embodiment includes: a hydrocarbon cleaning device 1 for cleaning the battery cell shell 3, the hydrocarbon cleaning device 1 includes a conveying line 12; a battery cell placement device 2 arranged on the conveying line 12, the battery cell placement device 2 forms at least two cleaning cavities 22 for placing the battery cell shell 3, and when the conveying line 12 drives the cleaning cavity 22 to rotate, the hydrocarbon cleaning agent of the hydrocarbon cleaning device 1 can immerse at least one cleaning cavity 22.

[0020] Specifically, according to common knowledge, the basic structure of the hydrocarbon cleaning device 1 includes: a cleaning tank for containing hydrocarbon cleaning agent; a heating system for constantly heating the hydrocarbon cleaning agent; an ultrasonic generator for generating high-frequency vibration to remove pollutants; a filtration system for cleaning and evenly distributing the hydrocarbon cleaning agent; a spray system for high-pressure spraying of the hydrocarbon cleaning agent; a recovery system for recycling the hydrocarbon cleaning agent; a control system for controlling the cleaning process; a safety device for ensuring safe production; a ventilation system for discharging exhaust gas; and a conveyor line 12 for transporting the battery cell housing 3 to be cleaned into and out of the cleaning tank.

[0021] Among them, the movement mode of the conveyor line 12 is step-by-step, and multiple battery cell placement devices 2 can be placed on the conveyor line 12. The battery cell placement device 2 forms six circumferentially evenly distributed cleaning cavities 22. When one of the battery cell placement devices 2 enters the cleaning tank, the other battery cell placement devices 2 on the conveyor line 12 are restricted from moving by the limiting protrusions on the conveyor line 12. However, after entering the cleaning tank, the battery cell placement device 2 continues to rotate under the drive of the conveyor line 12, so that the six cleaning cavities 22 alternately enter the cleaning tank, and then the battery cell shells 3 alternately enter the cleaning tank and are immersed in the hydrocarbon cleaning agent for cleaning and removing pollutants, so that multiple battery cell shells 3 can be evenly and comprehensively cleaned in the battery cell placement device 2, thereby improving the cleaning efficiency of the hydrocarbon cleaning device 1 for cleaning the battery cell shells 3. Secondly, when the battery cell shell 3 rotates in the cleaning tank, it also rotates relative to the hydrocarbon cleaning agent, achieving a cleaning effect similar to that of a washing machine.

[0022] like Figure 2 As shown, the battery cell placement device 2 also includes a cleaning bracket 21 whose radial outer surface is tangent to the conveying surface of the conveyor line 12. The cleaning bracket 21 is a hollow structure, and the cleaning cavity 22 is arranged inside the cleaning bracket 21. The hydrocarbon cleaning agent can flow through the cleaning bracket 21 and the cleaning cavity 22 along the radial direction of the cleaning bracket 21, and the axial direction of the battery cell shell 3 is parallel to the radial cross-section of the cleaning bracket 21.

[0023] Specifically, the cleaning bracket 21 is cylindrical and is welded from metal rods, wherein the length direction of the metal rods is the axial direction of the cleaning bracket 21, thereby forming a hollow structure, so that when the cleaning bracket 21 is immersed in the hydrocarbon cleaning agent, the hydrocarbon cleaning agent can enter the interior of the cleaning bracket 21 without hindrance for cleaning, and when the conveying surface drives the cleaning bracket 21 to rotate, the hydrocarbon cleaning agent can continuously contact and clean various parts of the cleaning bracket 21, and then it can continuously contact and clean the battery cell shell 3 in the cleaning cavity 22; secondly, the cleaning bracket 21 rotates around its own axis in the cleaning tank, so that the hydrocarbon cleaning agent enters the cleaning bracket 21 along its radial direction, and then enters the cleaning cavity 22. The placement direction of the battery cell shell 3 allows the hydrocarbon cleaning agent entering the cleaning cavity 22 to enter its interior, and then the hydrocarbon cleaning agent can contact the battery cell shell 3 immersed therein in all aspects without dead angles, thereby removing its contaminants in all aspects and improving the cleaning quality.

[0024] Combine Figure 3As shown, the battery cell placement device 2 also includes: a placement basket 23 arranged inside the cleaning cavity 22, the placement basket 23 is a hollow structure, and at least one cavity for placing the battery cell shell 3 is formed inside the placement basket 23, and the cleaning bracket 21 can limit the movement of the battery cell shell 3 placed inside the placement basket 23 relative to the placement basket 23; a limit member 24 connected to the cleaning bracket 21, the limit member 24 forms a switch structure on the cleaning bracket 21, and the switch structure can control the movement of the placement basket 23 relative to the cleaning bracket 21.

[0025] Specifically, the placement basket 23 is also welded from metal rods, and the length direction of the metal rods is its length direction, thereby forming a hollow structure, so that the hydrocarbon cleaning agent entering the cleaning cavity 22 can also enter the placement basket 23 without hindrance to clean the battery cell shell 3 therein. Secondly, the interior of the placement basket 23 is divided into multiple cavities by metal rods for placing the battery cell shell 3, so that when the placement basket 23 slides along the axial direction of the cleaning bracket 21, the battery cell shell 3 will not shake, and the adjacent battery cell shells 3 will not collide to cause surface defects. Secondly, the placement basket 23 is blocked on all sides by the metal rods of the cleaning bracket 21, thereby limiting the movement of the battery cell shell 3 placed therein, so that when the cleaning bracket 21 rotates, it will not move relative to the placement basket 23, affecting the cleaning effect or falling from the cleaning bracket 21, thereby improving the cleaning efficiency and the cleaning quality.

[0026] Among them, the placement basket 23 is separated from the cleaning bracket 21 along the axial direction, and the limiter 24 is connected to the axial end face of the cleaning bracket 21 to limit the movement of the placement basket 23. The switch structure of the limiter 24 makes the placement basket 23 fixed relative to the cleaning bracket 21 when the cleaning bracket 21 rotates, and the switch structure of the limiter 24 can also release the restriction on the placement basket 23, so that it can be separated from the cleaning bracket 21 after cleaning is completed, and the cleaned battery cell shell 3 is taken out, and the battery cell shell 3 to be cleaned is put back into the cleaning bracket 21 and then restricted from moving, thereby improving the efficiency of replacing the battery cell shell 3 and thereby improving the overall cleaning efficiency of the battery cell shell 3.

[0027] Furthermore, the axis of the cleaning bracket 21 is perpendicular to the conveying direction of the conveyor line 12 , the axes of the cleaning cavity 22 , the placement basket 23 and the cleaning bracket 21 are parallel, and the placement basket 23 moves relative to the cleaning bracket 21 along the axis direction of the cleaning cavity 22 .

[0028] Specifically, in the process of the conveying line 12 driving the cleaning bracket 21 to rotate and move toward the cleaning tank, the axis of the cleaning bracket 21 is always perpendicular to the conveying direction, so that after the cleaning bracket 21 enters the cleaning tank, the contact depth between the cleaning bracket 21 and the hydrocarbon cleaning agent is the same. Secondly, the battery cell shells 3 in the same axial direction of the placement basket 23 all enter the hydrocarbon cleaning agent at the same time, so that the depth of immersion of the battery cell shells 3 in the hydrocarbon cleaning agent is the same, and the cleaning effect of the battery cell shells 3 is the same, ensuring the overall cleaning quality of the battery cell shells 3; secondly, the placement basket 23 enters or moves away from the cleaning cavity 22 along the axial direction of the cleaning cavity 22, so that the limit member 24 is set on the overlapping axis of the cleaning cavity 22 and the placement basket 23 to limit the movement of the placement basket 23 to form a switch structure.

[0029] Furthermore, the cleaning cavity 22 forms an open end at one axial end surface of the cleaning bracket 21 , and the switch structure is provided at one axial end surface of the cleaning bracket 21 . The switch structure can limit the opening size of the open end of the cleaning cavity 22 .

[0030] Specifically, the cleaning cavity 22 is a cavity with an open end, and its open end is arranged on the axial end face of the cleaning bracket 21. The switch structure of the limit member 24 in this embodiment is six welded metal rods that rotate around the axis of the cleaning bracket 21, and the six metal rods are evenly distributed and correspond to the open ends of the cleaning cavity 22 respectively. When the six metal rods are respectively blocked at the open ends of the cleaning cavity 22, they can limit the relative movement of the placement basket 23 placed therein and the cleaning bracket 21; when none of the six metal rods contact the open end of the cleaning cavity 22, the placement basket 23 can enter or move away from the cleaning bracket 21 to replace the battery cell shell 3, thereby improving the stability of the placement basket 23 during the rotation process and preventing the battery cell shell 3 placed therein from shaking during the rotation.

[0031] Furthermore, the hydrocarbon cleaning device 1 also includes a hydrocarbon cleaning component 11 for cleaning the battery cell shell 3. The hydrocarbon cleaning component 11 is arranged at the end of the conveyor line 12. The battery cell placement device 2 with the battery cell shell 3 placed thereon is moved to the end of the conveyor line 12 and rotates under the drive of the conveyor line 12, thereby driving the battery cell shell 3 to rotate inside the hydrocarbon cleaning component 11.

[0032] Specifically, the conveyor line 12 drives the battery cell placement device 2 to move. When the battery cell placement device 2 moves to the cleaning tank in the hydrocarbon cleaning component 11, the conveyor line 12 drives the battery cell placement device 2 to rotate, so that the battery cell shell 3 is continuously in contact with the hydrocarbon cleaning agent to clean and remove pollutants, and the spray system in the hydrocarbon cleaning component 11 can also alternately clean the battery cell shell 3, thereby cleaning the battery cell shell 3 in all aspects, so that this embodiment can increase the number of battery cell shells 3 cleaned at one time while ensuring the cleaning quality, thereby improving the cleaning efficiency.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0034] The technology, shape and structure that are not described in detail in this utility model are all well-known technologies.

Claims

1. A battery cell shell cleaning device, characterized in that: include: A hydrocarbon cleaning device (1) for cleaning a battery cell housing (3), the hydrocarbon cleaning device (1) comprising a conveying line (12); A battery cell placement device (2) is arranged on the conveyor line (12), wherein the battery cell placement device (2) forms at least two cleaning cavities (22) for placing the battery cell shells (3); when the conveyor line (12) drives the cleaning cavities (22) to rotate, the hydrocarbon cleaning agent of the hydrocarbon cleaning device (1) can immerse at least one of the cleaning cavities (22).

2. The cleaning device according to claim 1, characterized in that: The battery cell placement device (2) further comprises a cleaning bracket (21) whose radial outer surface is tangent to the conveying surface of the conveying line (12); the cleaning bracket (21) is a hollow structure; the cleaning cavity (22) is arranged inside the cleaning bracket (21); the hydrocarbon cleaning agent can flow through the cleaning bracket (21) and the cleaning cavity (22) along the radial direction of the cleaning bracket (21); and the axial direction of the battery cell housing (3) is parallel to the radial cross section of the cleaning bracket (21).

3. The cleaning device according to claim 2, characterized in that: The battery cell placement device (2) further comprises: A placement basket (23) is arranged inside the cleaning cavity (22), the placement basket (23) being a hollow structure, at least one cavity for placing the battery cell shell (3) is formed inside the placement basket (23), and the cleaning bracket (21) is capable of limiting the movement of the battery cell shell (3) placed inside the placement basket (23) relative to the placement basket (23); A limiting member (24) connected to the cleaning bracket (21) forms a switch structure on the cleaning bracket (21), and the switch structure can control the placement basket (23) to move relative to the cleaning bracket (21).

4. The cleaning device according to claim 3, characterized in that: The axis of the cleaning bracket (21) is perpendicular to the conveying direction of the conveying line (12), the axes of the cleaning cavity (22), the placement basket (23) and the cleaning bracket (21) are parallel, and the placement basket (23) moves relative to the cleaning bracket (21) along the axis direction of the cleaning cavity (22).

5. The cleaning device according to claim 4, characterized in that: The cleaning cavity (22) forms an open end at an axial end surface of the cleaning bracket (21), and the switch structure is arranged at an axial end surface of the cleaning bracket (21). The switch structure can limit the opening size of the open end of the cleaning cavity (22).

6. The cleaning device according to claim 1, characterized in that: The hydrocarbon cleaning device (1) further comprises a hydrocarbon cleaning assembly (11) for cleaning the battery cell shell (3); the hydrocarbon cleaning assembly (11) is arranged at the end of the conveying line (12); the battery cell placement device (2) moved to the end of the conveying line (12) and on which the battery cell shell (3) is placed rotates under the drive of the conveying line (12), thereby driving the battery cell shell (3) to rotate inside the hydrocarbon cleaning assembly (11).

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