Assembled lithium battery cell spraying mechanism

Abstract

The utility model discloses an assembled lithium battery cell spraying mechanism, and relates to the technical field of lithium battery cell spraying. Comprising a main body box, the inner wall of the main body box is fixedly connected with a spraying hose, coating in the main body box is stirred through rotation of an arranged stirring assembly and a stirring frame, and when the coating in the main body box is stirred, bubbles with small density and liquid with large density in the coating are subjected to centrifugal force of different degrees; the air bubbles float upwards under the action of buoyancy until the surface is broken, so that air escapes, meanwhile, shearing force generated by stirring enables the shapes of the air bubbles to be changed, walls to be thinned and easy to break, and dispersed agglomerates release the wrapped air bubbles, so that the air bubbles in the coating are effectively eliminated, and in addition, a low-pressure environment is formed in the main body box through the arranged pressure reduction assembly. And the pressure difference inside and outside the bubbles is increased through the low-pressure environment, so that the expansion and fracture speed of the bubbles is increased, the residual bubbles can be discharged from the coating more quickly, the degassing time is shortened, and the spraying effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery cell spraying technology, specifically to an assembled lithium battery cell spraying mechanism. Background Technology

[0002] In the lithium battery manufacturing process, cell coating is a crucial step that directly affects the performance, safety, and lifespan of lithium batteries. With the widespread application of lithium batteries in new energy vehicles, energy storage equipment, and other fields, the market has placed higher demands on the quality and production capacity of lithium batteries.

[0003] However, traditional lithium battery cell coating mechanisms have significant drawbacks, with the removal of paint bubbles being particularly problematic. During storage, transportation, and preparation, paint is prone to incorporating air and forming bubbles. Traditional coating mechanisms struggle to effectively remove these bubbles using efficient principles such as centrifugal force, and their bubble removal methods are relatively limited. When paint containing bubbles is sprayed onto the cell surface, it can lead to defects such as pinholes and pitting, severely impacting the cell's insulation performance and chemical stability. This not only reduces the charging and discharging efficiency of lithium batteries but also shortens their lifespan. Therefore, there is an urgent need for an assembled lithium battery cell coating mechanism to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide an assembled lithium battery cell spraying mechanism to solve the problem mentioned in the background art that traditional lithium battery cell spraying mechanisms have difficulty in effectively removing air bubbles contained in the coating during spraying.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an assembled lithium battery cell spraying mechanism, including a main body box, a spraying hose fixedly connected to the inner wall of the main body box, a spraying gun fixedly connected to the other end of the spraying hose, a stirring assembly provided inside the main body box, and a voltage reduction assembly provided on the side wall of the main body box.

[0006] The stirring assembly includes a rotating column, which is rotatably connected to the inner wall of the main body box. The surface of the rotating column is provided with an installation groove, and a stirring frame is fixedly connected to the inner wall of the installation groove. A motor is fixedly connected to the top surface of the main body box, and the surface of the rotating column is fixedly connected to the output end of the motor.

[0007] Preferably, the pressure reduction assembly includes a mounting plate, which is fixedly connected to the side wall of the main body box. A vacuum pump is fixedly connected to the side wall of the mounting plate. A fixing hole is opened on the top surface of the main body box. An air suction pipe is fixedly connected to the inner wall of the fixing hole. The other end of the air suction pipe is fixedly connected to the inner wall of the air inlet of the vacuum pump.

[0008] Preferably, a fixing head is fixedly connected to the surface of the air inhalation tube, and a filter screen is fixedly connected to the inner wall of the fixing head.

[0009] Preferably, a sealing gasket is fixedly connected to the inner wall of the fixing hole, and the inner wall of the sealing gasket is fixedly connected to the surface of the suction pipe.

[0010] Preferably, the dimensions of the stirring rack match the dimensions of the mounting groove, and the stirring rack is arranged in a cross-shaped cone.

[0011] Preferably, a controller is fixedly connected to the side wall of the mounting plate, a storage battery is fixedly connected to the side wall of the mounting plate, the storage battery is electrically connected to the controller, the storage battery is electrically connected to the vacuum pump, the controller is electrically connected to the vacuum pump, the storage battery is electrically connected to the motor, and the controller is electrically connected to the motor.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The stirring assembly rotates to agitate the paint inside the main tank. As the paint is stirred, the low-density air bubbles and high-density liquid are subjected to varying degrees of centrifugal force. The air bubbles are pushed towards the center, while the liquid is thrown towards the edges. The air bubbles aggregate in the center, forming larger bubble clusters. Under buoyancy, these clusters rise to the surface and burst, releasing the gas. Simultaneously, the shear force generated by the stirring alters the bubble shape, thins the walls, and makes them easier to break, while also dispersing agglomerates and releasing trapped air bubbles. This effectively eliminates air bubbles within the paint. Furthermore, the pressure-reducing assembly creates a low-pressure environment inside the main tank. This low-pressure environment increases the pressure difference between the inside and outside of the air bubbles, accelerating their expansion and bursting. This allows residual air bubbles to be expelled from the paint more quickly, shortening the degassing time and improving the spraying effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the stirring assembly structure of this utility model;

[0016] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle.

[0017] In the diagram: 1. Main body box; 2. Spray hose; 3. Spray gun; 4. Mixing assembly; 401. Rotating column; 402. Mounting slot; 403. Mixing rack; 404. Motor; 5. Voltage reduction assembly; 501. Mounting plate; 502. Vacuum pump; 503. Fixing hole; 504. Suction pipe; 505. Fixing head; 506. Filter screen; 507. Sealing gasket; 508. Controller; 509. Battery. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides an assembled lithium battery cell spraying mechanism, including a main body box 1. A spraying hose 2 is fixedly connected to the inner wall of the main body box 1, and a spray gun 3 is fixedly connected to the other end of the spraying hose 2. A stirring assembly 4 is arranged inside the main body box 1, and a voltage reduction assembly 5 is arranged on the side wall of the main body box 1. The stirring assembly 4 includes a rotating column 401, which is rotatably connected to the inner wall of the main body box 1. An installation groove 402 is opened on the surface of the rotating column 401, and a stirring frame 403 is fixedly connected to the inner wall of the installation groove 402. A motor 404 is fixedly connected to the top surface of the main body box 1, and the surface of the rotating column 401 is fixed to the output end of the motor 404. The connection is made through the set stirring component 4, and the motor 404 is started by the controller 508. The output end of the motor 404 rotates, thereby driving the rotating column 401 to rotate. The rotation of the rotating column 401 drives the stirring frame 403 to rotate. The rotation of the stirring frame 403 stirs the coating inside the main body box 1. When the coating inside the main body box 1 is stirred, the low-density bubbles and high-density liquid in the coating are subjected to different degrees of centrifugal force. Under the action of buoyancy, they float to the surface and rupture, releasing the gas. At the same time, the shear force generated by stirring changes the shape of the bubbles, makes the walls thinner and easier to rupture, and can also disperse the agglomerates to release the encapsulated bubbles, thereby effectively eliminating the bubbles in the coating.

[0020] Furthermore, the pressure-reducing component 5 includes a mounting plate 501, which is fixedly connected to the side wall of the main body box 1. A vacuum pump 502 is fixedly connected to the side wall of the mounting plate 501. A fixing hole 503 is opened on the top surface of the main body box 1. An air suction pipe 504 is fixedly connected to the inner wall of the fixing hole 503. The other end of the air suction pipe 504 is fixedly connected to the inner wall of the air inlet of the vacuum pump 502. Through the pressure-reducing component 5, the vacuum pump 502 is started by the controller 508. The vacuum pump 502 performs vacuum suction on the inside of the main body box 1 through the air suction pipe 504, thereby reducing the gas pressure inside the main body box 1. The gas solubility decreases as the pressure decreases, thereby promoting the escape of residual gas from the paint, further improving the degassing effect of the paint, reducing bubble defects. At the same time, the low-pressure environment increases the pressure difference between the inside and outside of the bubbles, thereby accelerating the expansion and bursting speed of the bubbles, so that the residual bubbles can be discharged from the paint more quickly, shortening the degassing time and improving the spraying effect.

[0021] Furthermore, a fixing head 505 is fixedly connected to the surface of the suction pipe 504, and a filter screen 506 is fixedly connected to the inner wall of the fixing head 505. The filter screen 506 facilitates the filtration of the coating.

[0022] Furthermore, a sealing gasket 507 is fixedly connected to the inner wall of the fixing hole 503. The inner wall of the sealing gasket 507 is fixedly connected to the surface of the suction pipe 504. The sealing gasket 507 facilitates the improvement of the sealing performance inside the main body box 1.

[0023] Furthermore, the dimensions of the mixing rack 403 match the dimensions of the mounting groove 402. The mixing rack 403 is arranged in a cross-shaped cone. The cross-shaped mixing rack 403 facilitates the rapid movement of the paint inside the main body box 1.

[0024] Furthermore, a controller 508 is fixedly connected to the side wall of the mounting plate 501, and a storage battery 509 is fixedly connected to the side wall of the mounting plate 501. The storage battery 509 is electrically connected to the controller 508, the vacuum pump 502, the controller 508, and the motor 404. The storage battery 509 facilitates the supply of electrical energy to the controller 508, the vacuum pump 502, and the motor 404. The controller 508, the vacuum pump 502, and the motor 404 are common electrical components in this technology and are considered prior art, so they will not be described in detail here.

[0025] Working Principle: The stirring assembly 4, activated by the controller 508, starts the motor 404. The motor 404's output rotates, driving the rotating column 401 to rotate. This rotation, in turn, drives the stirring frame 403 to rotate, thus stirring the coating inside the main body tank 1. As the coating is stirred, the stirring frame 403 moves in a circular motion along with the rotating column 401. Both air bubbles and liquid components in the coating are subjected to centrifugal force. Since the density of air bubbles is less than that of the liquid coating, under centrifugal force, the air bubbles move towards the central axis of the main body tank 1, while the denser liquid coating is thrown towards the edge. As the air bubbles accumulate, they form larger bubble clusters. These larger clusters, due to buoyancy, rise more easily to the surface of the coating. Once the bubbles reach the surface, the gas inside escapes into the air, thus separating the bubbles from the coating and eliminating them. During the mixing process, in addition to centrifugal force, shear force is also generated. Shear force can stretch and compress the bubbles in the coating, thereby changing the shape and size of the bubbles. When the bubbles are stretched to a certain extent, the bubble walls become thinner, making them easier to break and allowing the gas inside the bubbles to escape. At the same time, shear force can also disperse agglomerates or flocs in the coating, releasing the bubbles trapped within them, further improving the defoaming effect. In addition, through the pressure reduction component 5, the vacuum pump 502 is started by the controller 508. The vacuum pump 502 performs vacuum suction on the inside of the main body box 1 through the suction pipe 504, thereby reducing the gas pressure inside the main body box 1. The gas solubility decreases as the pressure decreases, thereby promoting the escape of residual gas from the coating, further improving the degassing effect of the coating, reducing bubble defects. At the same time, the low-pressure environment increases the pressure difference between the inside and outside of the bubbles, thereby accelerating the expansion and rupture speed of the bubbles, allowing residual bubbles to be discharged from the coating more quickly, shortening the degassing time, and improving the spraying effect.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An assembled lithium battery cell spraying mechanism comprising a main body box (1), characterized in that: The inner wall of the main box (1) is fixedly connected with a spraying hose (2), one end of the spraying hose (2) is fixedly connected with a spraying gun (3), the inside of the main box (1) is provided with a stirring assembly (4), and the side wall of the main box (1) is provided with a pressure reducing assembly (5). The stirring assembly (4) comprises a rotating column (401) which is rotatably connected to the inner wall of the main box (1), a mounting groove (402) is formed in the surface of the rotating column (401), the inner wall of the mounting groove (402) is fixedly connected with a stirring frame (403), the top surface of the main box (1) is fixedly connected with a motor (404), and the surface of the rotating column (401) is fixedly connected with the output end of the motor (404).

2. The assembled lithium battery cell spraying mechanism of claim 1, wherein: The pressure reducing assembly (5) comprises a mounting plate (501) which is fixedly connected to the side wall of the main box (1), the side wall of the mounting plate (501) is fixedly connected with a vacuum pump (502), the top surface of the main box (1) is provided with a fixing hole (503), the inner wall of the fixing hole (503) is fixedly connected with a suction pipe (504), and the other end of the suction pipe (504) is fixedly connected with the inner wall of the air inlet of the vacuum pump (502).

3. The assembled lithium battery cell spraying mechanism of claim 2, wherein: The surface of the suction pipe (504) is fixedly connected with a fixing head (505), and the inner wall of the fixing head (505) is fixedly connected with a filter screen (506).

4. The spray mechanism for assembled lithium battery cells of claim 2, wherein: The inner wall of the fixing hole (503) is fixedly connected with a sealing gasket (507), and the inner wall of the sealing gasket (507) is fixedly connected with the surface of the suction pipe (504).

5. The spray mechanism for assembled lithium battery cells of claim 1, wherein: The size of the stirring frame (403) matches the size of the mounting groove (402), and the stirring frame (403) is provided in a cross taper shape.

6. The assembled lithium battery cell spraying mechanism of claim 2, wherein: The side wall of the mounting plate (501) is fixedly connected with a controller (508), the side wall of the mounting plate (501) is fixedly connected with a storage battery (509), the storage battery (509) is electrically connected with the controller (508), the storage battery (509) is electrically connected with the vacuum pump (502), the controller (508) is electrically connected with the vacuum pump (502), the storage battery (509) is electrically connected with the motor (404), and the controller (508) is electrically connected with the motor (404).

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