Integrated high-speed carbon coating and drying device for battery case

The integrated high-speed carbon coating and drying device for battery casings enables synchronized operation of carbon coating and drying, solving the problems of slow production cycle and dust pollution, improving production efficiency and coating quality, and is suitable for industrial production.

CN224371826UActive Publication Date: 2026-06-19ANHUI HOULI TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI HOULI TECH CO LTD
Filing Date
2025-05-07
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In the current lithium-ion battery manufacturing process, the carbon coating and drying processes of the integrated battery casing are carried out in separate steps, resulting in a slow production cycle and easy dust pollution or coating damage.

Method used

The integrated high-speed carbon coating and drying device for battery casings adopts a flowing air drying mechanism and a rotary feeding mechanism. It sprays a conductive carbon layer through a nozzle and dries it with heating. Combined with a closed airflow circulation and an anti-slip feeding plate design, it achieves synchronous operation of carbon coating and drying.

Benefits of technology

It significantly improves production efficiency, reduces the risk of external pollution, ensures coating uniformity and drying consistency, simplifies equipment structure, reduces energy consumption, and meets the high throughput requirements of industrial production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses an integrated battery shell high-speed carbon coating and drying integrated device, belongs to the drying technical field, and comprises a base, a protective cover is fixedly installed at the top of the base, an air inlet duct is fixedly installed at the top of the base, a separation net is installed at the top of the air inlet duct, a placing plate is rotationally connected to the top of the base, and two openings are formed in the protective cover; a flowing air drying mechanism, which comprises an arc-shaped air exhaust box, the arc-shaped air exhaust box is fixedly installed on the inner wall at the top of the protective cover, a plurality of air exhaust holes are formed in the bottom of the arc-shaped air exhaust box, a rotary feeding mechanism, which comprises a ring-shaped feeding plate, the ring-shaped feeding plate is installed on the placing plate, and the ring-shaped feeding plate is matched with the plurality of air exhaust holes. The air inlet duct and the arc-shaped air exhaust box are communicated through guide holes and arc-shaped openings, a closed air circulation path is formed, heat loss is reduced, and heat energy utilization rate is improved; the separation net is designed to block foreign matters from entering, and the service life of the equipment is prolonged.
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Description

Technical Field

[0001] This invention belongs to the field of drying technology, specifically, it relates to an integrated device for high-speed carbon coating and drying of battery casings. Background Technology

[0002] With the rapid development of new energy vehicles and the energy storage industry, lithium-ion batteries, as a core power source, have attracted much attention regarding their performance and production efficiency. During the manufacturing process of integrated battery casings (such as square or cylindrical battery casings), a conductive carbon layer is typically coated onto the inner wall of the metal casing to improve the battery's conductivity, interface stability, and energy density.

[0003] The existing process uses a discrete mode, which relies on multiple machines connected in series. This results in a slow production cycle and is prone to dust pollution or coating damage due to the connection between processes.

[0004] To address the aforementioned issues, this application proposes an integrated high-speed carbon coating and drying device for battery casings. Summary of the Invention

[0005] In response to the problems in related technologies, this invention proposes an integrated high-speed carbon coating and drying device for battery casings to overcome the aforementioned technical problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An integrated high-speed carbon coating and drying device for battery casings includes a base, a protective cover fixedly installed on the top of the base, an air inlet duct fixedly installed on the top of the base, an isolation net installed at the top of the air inlet duct, a placement plate rotatably connected to the top of the base, and two openings on the protective cover.

[0008] A mobile air drying mechanism includes an arc-shaped exhaust box, which is fixedly installed on the top inner wall of the protective cover, and the bottom of the arc-shaped exhaust box has multiple exhaust holes.

[0009] A rotary feeding mechanism includes an annular feeding plate, which is mounted on a placement plate and cooperates with multiple exhaust holes.

[0010] The material bin is fixedly installed on the protective cover. A nozzle is installed at the bottom of the material bin. The nozzle is located inside the protective cover and cooperates with the annular feeding plate.

[0011] Preferably, the air-drying mechanism further includes fan blades, an installation rod is fixedly installed on the inner wall of the air inlet duct, a rotating shaft is rotatably connected to the installation rod, the fan blades are fixedly installed on the rotating shaft, and an annular heating block is installed on the inner wall of the air inlet duct, the annular heating block and the fan blades cooperate with each other.

[0012] The rotating shaft drives the fan blades to rotate, and the resulting airflow acts on the annular heating block, allowing the airflow to heat the block. The airflow is then discharged through the arc-shaped exhaust box and exhaust holes, and acts on the annular feeding plate.

[0013] Preferably, the inner side of the arc-shaped exhaust box is provided with multiple guide holes, and the air inlet is provided with an arc-shaped opening, which is connected to the guide holes.

[0014] The airflow in the air inlet duct enters the arc-shaped exhaust box through the arc-shaped opening and guide hole, and then acts on the annular feeding plate.

[0015] Preferably, a motor is fixedly installed on one inner wall of the air inlet duct, a drive rod is fixedly installed on the output shaft of the motor, a first bevel gear is fixedly installed at one end of the drive rod, and a second bevel gear is fixedly installed on the rotating shaft, with the first bevel gear and the second bevel gear meshing with each other.

[0016] The motor's output shaft drives the drive rod to rotate. The drive rod, through the meshing of the first and second bevel gears, drives the rotating shaft to rotate, which in turn drives the fan blades to rotate.

[0017] Preferably, the rotary feeding mechanism further includes a drive gear and a crown wheel. The crown wheel is fixedly installed on the top of the placement plate, and the drive gear is fixedly installed on the drive rod. The drive gear and the crown wheel mesh with each other.

[0018] The rotating drive rod meshes with the crown wheel through the drive gear, thereby driving the placement plate to rotate. The placement plate drives the battery casings on the annular feeding plate to rotate and feed, thus enabling rapid spraying and drying.

[0019] Preferably, the annular feeding plate has a textured surface.

[0020] The textured design on the annular feed plate increases the friction between the battery casing and the feed plate, thus preventing the battery casing from derailing.

[0021] In summary, the technical effects and advantages of this invention are as follows:

[0022] 1. Integrated coating and drying design

[0023] Innovation Description: The carbon coating spraying (through the material box nozzle) and hot air drying (through the flowing air drying mechanism) are integrated into the same protective cover to achieve simultaneous processing.

[0024] Technical advantages:

[0025] It eliminates the transfer time of traditional step-by-step operations, significantly improving production efficiency; it reduces the risk of external contamination and ensures coating uniformity and consistent drying.

[0026] 2. Dynamic hot air drying system

[0027] Innovation Description: It adopts a combination of "fan blades + ring heating block". The fan blades are driven by a rotating shaft to form a forced airflow. After the airflow is evenly heated by the ring heating block, it is discharged in a directional manner through multiple exhaust holes in the arc-shaped exhaust box.

[0028] Technical advantages:

[0029] The hot air covers a large area and is evenly distributed, avoiding local overheating or insufficient drying; the arc-shaped exhaust box matches the trajectory of the ring-shaped feeding plate, ensuring that the battery casing is heated from all directions during rotation.

[0030] 3. Cooperative transmission of the rotary feeding mechanism

[0031] Innovation Description: A single motor drives dual actions (drying system and rotary feeding), utilizing bevel gear sets (first and second bevel gears) and gear-crown wheel meshing to synchronously achieve fan blade rotation and feeding plate rotation.

[0032] Technical advantages:

[0033] The simplified power structure reduces equipment complexity and energy consumption; the meshing design of the drive gear and crown wheel ensures smooth rotation of the feeding plate and avoids speed fluctuations affecting coating quality.

[0034] 4. Anti-slip feeding plate design

[0035] Innovation Description: The surface of the ring-shaped feeding plate is textured to increase the friction between the plate and the battery casing.

[0036] Technical advantages:

[0037] Prevents battery casing displacement or derailment during high-speed rotation, ensuring stability during processing; suitable for battery casings of different sizes, enhancing equipment versatility.

[0038] 5. Closed-loop flow channel optimization

[0039] Innovation Description: The air inlet duct and the arc-shaped exhaust box are connected to the arc-shaped opening through guide holes, forming a closed airflow circulation path.

[0040] Technical advantages:

[0041] Reduce heat loss and improve thermal energy utilization; the isolation net design prevents foreign objects from entering and extends the service life of the equipment.

[0042] 6. Continuous production process

[0043] Innovation Description: Symmetrical openings are provided on both sides of the protective cover to support continuous loading / unloading by manual or robotic arms, and can be used in conjunction with a rotating loading plate to achieve uninterrupted operation.

[0044] Technical advantages:

[0045] To meet the high throughput requirements of industrial production lines; reduce equipment start-up and shutdown frequency, and lower energy consumption and maintenance costs. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0047] Figure 2 This is a schematic diagram of the internal structure of the protective cover of the present invention;

[0048] Figure 3 This is a schematic diagram of the internal structure of the air inlet duct of the present invention;

[0049] Figure 4 This is a schematic diagram of the arc-shaped exhaust box structure of the present invention;

[0050] Figure 5 This is a schematic diagram of the drive rod, rotating shaft, and crown wheel transmission connection structure of the present invention.

[0051] In the picture:

[0052] 1. Base; 2. Protective cover; 3. Air inlet duct; 4. Flow drying mechanism; 41. Arc-shaped exhaust box; 42. Exhaust hole; 43. Guide hole; 44. Mounting rod; 45. Rotating shaft; 46. Fan blade; 47. Annular heating block; 5. Rotary feeding mechanism; 51. Annular feeding plate; 52. Placement plate; 53. Drive gear; 54. Crown wheel; 7. Drive rod; 8. First bevel gear; 9. Material box; 10. Nozzle; 11. Opening; 12. Isolation net. Detailed Implementation

[0053] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0054] Example 1

[0055] Reference Figure 1-5 An integrated battery casing high-speed carbon coating and drying device includes a base 1, a protective cover 2 fixedly installed on the top of the base 1, an air inlet duct 3 fixedly installed on the top of the base 1, an isolation net 12 installed at the top of the air inlet duct 3, a placement plate 52 rotatably connected to the top of the base 1, and two openings 11 on the protective cover 2.

[0056] The air-drying mechanism 4 includes an arc-shaped exhaust box 41, which is fixedly installed on the top inner wall of the protective cover 2. The bottom of the arc-shaped exhaust box 41 has multiple exhaust holes 42.

[0057] The rotary feeding mechanism 5 includes an annular feeding plate 51, which is mounted on the placement plate 52 and cooperates with multiple exhaust holes 42.

[0058] The material box 9 is fixedly installed on the protective cover 2. The bottom of the material box 9 is equipped with a nozzle 10, which is located inside the protective cover 2 and cooperates with the annular feeding plate 51.

[0059] Reference Figure 1 and Figure 4 The air-drying mechanism 4 also includes a fan blade 46. An installation rod 44 is fixedly installed on the inner wall of the air inlet duct 3. A rotating shaft 45 is rotatably connected to the installation rod 44. The fan blade 46 is fixedly installed on the rotating shaft 45. An annular heating block 47 is installed on the inner wall of the air inlet duct 3. The annular heating block 47 and the fan blade 46 cooperate with each other. Multiple guide holes 43 are opened on the inner side of the arc-shaped exhaust box 41. An arc-shaped opening is opened on the air inlet duct 3. The arc-shaped opening and the guide holes 43 are interconnected. The fan blade 46 is driven to rotate by the rotating shaft 45, and the resulting air force acts on the annular heating block 47, so that the air force can heat it. The air is discharged through the arc-shaped exhaust box 41 and the exhaust hole 42 and acts on the annular feeding plate 51. The air force in the air inlet duct 3 enters the arc-shaped exhaust box 41 through the arc-shaped opening and the guide hole 43, and thus acts on the annular feeding plate 51.

[0060] Reference Figure 5 A motor 6 is fixedly installed on the inner wall of one side of the air inlet duct 3. A drive rod 7 is fixedly installed on the output shaft of the motor 6. A first bevel gear 8 is fixedly installed at one end of the drive rod 7. A second bevel gear 9 is fixedly installed on the rotating shaft 45. The first bevel gear 8 and the second bevel gear 9 mesh with each other. The output shaft of the motor 6 drives the drive rod 7 to rotate. The drive rod 7 can drive the rotating shaft 45 to rotate through the meshing of the first bevel gear 8 and the second bevel gear 9, thereby driving the fan blade 46 to rotate.

[0061] Reference Figure 5 The rotary feeding mechanism 5 also includes a drive gear 53 and a crown wheel 54. The crown wheel 54 is fixedly installed on the top of the placement plate 52, and the drive gear 53 is fixedly installed on the drive rod 7. The drive gear 53 and the crown wheel 54 mesh with each other. The rotating drive rod 7 drives the placement plate 52 to rotate through the meshing of the drive gear 53 and the crown wheel 54. The placement plate 52 drives the battery case on the annular feeding plate 51 to rotate and feed, thereby enabling rapid spraying and drying.

[0062] Reference Figure 2 The annular feeding plate 51 has textured surfaces. The textured surfaces on the annular feeding plate 51 can increase the friction between the battery case and the feeding plate 51, thereby preventing the battery case from derailing.

[0063] Working principle: During operation, the battery case is placed on the annular feeding plate 51 through the opening 11. The motor 6 is turned on, and the output shaft of the motor 6 drives the drive rod 7 to rotate. The drive rod 7, through the meshing of the first bevel gear 8 and the second bevel gear 9, drives the rotating shaft 45 to rotate, which in turn drives the fan blade 46 to rotate. The resulting airflow acts on the annular heating block 47, allowing the airflow to heat the battery. The airflow is then discharged through the arc-shaped exhaust box 41 and the exhaust hole 42, acting on the annular feeding plate 51. At the same time, the rotating drive rod 7, through the meshing of the drive gear 53 and the crown wheel 54, drives the placement plate 52 to rotate. The placement plate 52 drives the battery case on the annular feeding plate 51 to rotate and be fed. The battery case is then sprayed through the nozzle 10 and can be quickly sprayed and dried by the hot air in the multiple exhaust holes 42. The dried battery case is then removed through another opening 11, facilitating continuous spraying operations.

[0064] Example 2

[0065] During operation, this application can be operated in conjunction with two robotic arms. The two robotic arms are placed at the two openings 11 to perform loading and unloading operations on the battery casings. At the same time, the robotic arms and motors 6 are operated in a synchronous remote intelligent control.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated high-speed carbon coating and drying device for battery casings, comprising a base (1), characterized in that, A protective cover (2) is fixedly installed on the top of the base (1), an air inlet duct (3) is fixedly installed on the top of the base (1), an isolation net (12) is installed at the top of the air inlet duct (3), a placement plate (52) is rotatably connected to the top of the base (1), and two openings (11) are opened on the protective cover (2). The air-drying mechanism (4) includes an arc-shaped exhaust box (41), which is fixedly installed on the top inner wall of the protective cover (2), and the bottom of the arc-shaped exhaust box (41) is provided with multiple exhaust holes (42). The rotating feeding mechanism (5) includes an annular feeding plate (51), which is mounted on a placement plate (52). The annular feeding plate (51) cooperates with multiple exhaust holes (42). The material box (9) is fixedly installed on the protective cover (2). A nozzle (10) is installed at the bottom of the material box (9). The nozzle (10) is located inside the protective cover (2) and cooperates with the annular feeding plate (51).

2. The integrated high-speed carbon coating and drying device for battery casings according to claim 1, characterized in that, The flow drying mechanism (4) also includes a fan blade (46), an installation rod (44) is fixedly installed on the inner wall of the air inlet (3), a rotating shaft (45) is rotatably connected to the installation rod (44), the fan blade (46) is fixedly installed on the rotating shaft (45), and an annular heating block (47) is installed on the inner wall of the air inlet (3), the annular heating block (47) and the fan blade (46) cooperate with each other.

3. The integrated high-speed carbon coating and drying device for battery casings according to claim 1, characterized in that, The inner side of the arc-shaped exhaust box (41) is provided with multiple guide holes (43), and the air inlet (3) is provided with an arc-shaped opening, which is connected to the guide holes (43).

4. The integrated high-speed carbon coating and drying device for battery casings according to claim 1, characterized in that, A motor (6) is fixedly installed on one side of the inner wall of the air inlet duct (3). A drive rod (7) is fixedly installed on the output shaft of the motor (6). A first bevel gear (8) is fixedly installed at one end of the drive rod (7). A second bevel gear (13) is fixedly installed on the rotating shaft (45). The first bevel gear (8) and the second bevel gear (13) mesh with each other.

5. The integrated high-speed carbon coating and drying device for battery casings according to claim 1, characterized in that, The rotary feeding mechanism (5) also includes a drive gear (53) and a crown wheel (54). The crown wheel (54) is fixedly installed on the top of the placement plate (52), and the drive gear (53) is fixedly installed on the drive rod (7). The drive gear (53) and the crown wheel (54) mesh with each other.

6. The integrated high-speed carbon coating and drying device for battery casings according to claim 1, characterized in that, The annular feeding plate (51) has a textured surface.