Cylindrical lithium battery sealing device

Abstract

The utility model discloses a cylindrical lithium battery sealing device, which relates to the field of lithium battery vacuum sealing appliances and comprises a conveyor belt, a second support is arranged at the upper end of the conveyor belt, a vacuum pump is arranged at the upper end of the second support, a vacuum cover is arranged at the lower end of the second support, and the vacuum cover is connected with the vacuum pump through a first air pipe. A plurality of lithium batteries are arranged at the upper end of the conveying belt, baffles are arranged on the two sides of the conveying belt, limiting plates are symmetrically arranged at the upper ends of the baffles, side rods are arranged on one sides of the baffles, and the other ends of the side rods are arranged at the upper ends of the baffles. According to the lithium battery sealing device, gas influencing the battery performance can be exhausted in time before sealing, the yield and safety of the battery are improved, after the battery sealing work is completed, the sealing tightness of the sealed lithium battery can be detected through the arrangement of the supercharger and the sealing cover, and defective products can be effectively eliminated.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery vacuum sealing equipment, and in particular to a cylindrical lithium battery sealing device. Background Technology

[0002] Cylindrical lithium batteries, also known as spherical lithium batteries, are widely recognized for their long history and high market penetration. These batteries utilize a mature winding process, are highly automated, produce stable product quality, and have relatively low costs. The advantages of cylindrical lithium batteries include high production efficiency, lower production costs, and good consistency. Due to their mature manufacturing process, cylindrical lithium battery packs have lower costs, higher yields, and better consistency. Furthermore, their larger heat dissipation area results in superior heat dissipation compared to prismatic batteries. Cylindrical lithium batteries are widely used in various fields, especially in the electric vehicle market, due to their mature technology, stable quality, and lower cost. With continuous technological innovation, the performance of cylindrical lithium batteries is constantly improving to meet increasingly demanding market requirements.

[0003] A certain amount of gas is generated between the positive and negative electrodes of a battery. This gas affects the space between the electrodes, leading to electrolyte loss and impacting the battery performance. Therefore, it is necessary to vacuum the cylindrical lithium battery before sealing it to improve battery performance and safety. Utility Model Content

[0004] The present invention provides a cylindrical lithium battery sealing device, which solves the existing problems.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A cylindrical lithium battery sealing device includes a conveyor belt, a second support at the upper end of the conveyor belt, a vacuum pump at the upper end of the second support, and a vacuum hood at the lower end of the second support. The vacuum hood and the vacuum pump are connected via a first air pipe. A plurality of lithium batteries are disposed on the upper end of the conveyor belt. Baffles are disposed on both sides of the conveyor belt. Limit plates are symmetrically disposed on the upper end of the baffles. A side rod is disposed on one side of the baffle, and the other end of the side rod is disposed on the upper end of the baffle. A first support is disposed on one side of the second support, and a downward sealing mechanism is disposed below the first support. A sealing detection mechanism is disposed on the other side of the first support.

[0007] Preferably, a transport plate is provided at the upper end of the baffle, and a first bracket is provided at the upper end of the transport plate.

[0008] Preferably, the sealing mechanism includes a first electric telescopic rod, the lower end of the first bracket is provided with the first electric telescopic rod, the inner two sides of the first bracket are provided with a third electric telescopic rod, and one end of the third electric telescopic rod is provided with a fixing ring.

[0009] Preferably, guide wheels are provided at the middle of both sides of the transport plate, grooves are provided on both sides of the transport plate, and pressure blocks are provided at the upper end of the transport plate.

[0010] Preferably, the sealing detection mechanism includes a pad, a pad is provided on one side of the baffle, one of the pads is provided with a booster at its upper end, a second electric telescopic rod is provided on one side of the booster, a sealing cover is provided on one side of the second electric telescopic rod, the booster is connected to the sealing cover through a second air pipe, and a side plate is provided on the upper end of the other pad, a second electric telescopic rod is provided on one side of the side plate, and a sealing cover is provided on one side of the second electric telescopic rod.

[0011] Preferably, the first electric telescopic rod corresponds to the vertical position of the pressure block, and the fixing ring is at the same horizontal position as the grooves on both sides of the transport plate.

[0012] Preferably, the conveyor belt is provided with several feet on both sides.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By incorporating a vacuum hood and vacuum pump, the battery can be rapidly evacuated, allowing gases that could affect battery performance to be expelled before sealing, thus improving battery yield and safety.

[0015] 2. After the battery sealing process is completed, the sealing performance of the sealed lithium battery can be tested by using a booster and a sealing cover, which can effectively eliminate defective products. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective.

[0018] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0019] Labels in the diagram: 1. Conveyor belt; 2. Pad block; 3. Foot; 4. Intensifier; 5. First support; 6. First electric telescopic rod; 7. Vacuum pump; 8. First air pipe; 9. Vacuum hood; 10. Side rod; 11. Limiting plate; 12. Baffle; 13. Side plate; 14. Second electric telescopic rod; 15. Sealed hood; 16. Second air pipe; 17. Transport plate; 18. Third electric telescopic rod; 19. Pressure block; 20. Fixing ring; 21. Guide wheel; 22. Lithium battery; 23. Second support. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-3 A cylindrical lithium battery sealing device includes a conveyor belt 1, a second support 23 at the upper end of the conveyor belt 1, a vacuum pump 7 at the upper end of the second support 23, and a vacuum cover 9 at the lower end of the second support 23. The vacuum cover 9 and the vacuum pump 7 are connected through a first air pipe 8. A plurality of lithium batteries 22 are arranged at the upper end of the conveyor belt 1. Baffles 12 are arranged on both sides of the conveyor belt 1. Limiting plates 11 are symmetrically arranged at the upper end of the baffles 12. A side rod 10 is arranged on one side of the baffles 12, and the other end of the side rod 10 is arranged at the upper end of the baffles 12. When the lithium batteries 22 are transported to the upper end of the vacuum cover 9 through the conveyor belt 1, the vacuum cover 9 will cover the lithium batteries 22 to perform vacuuming. After the vacuuming is completed, the battery cover is placed on it. Due to the vacuum inside the lithium batteries 22, the battery cover will be attracted. During transportation on the conveyor belt 1, the position is guided by the limiting plates 11. A plurality of feet 3 are arranged on both sides of the conveyor belt 1 to fix the conveyor belt 1.

[0022] Reference Figures 1-2The sealing mechanism includes a first electric telescopic rod 6, a transport plate 17 at the upper end of the baffle 12, a first support 5 at the upper end of the transport plate 17, a first electric telescopic rod 6 at the lower end of the first support 5, and third electric telescopic rods 18 on both sides inside the first support 5. A fixing ring 20 is provided at one end of each third electric telescopic rod 18. The first electric telescopic rod 6 corresponds vertically to the pressure block 19. The fixing ring 20 is horizontally aligned with the grooves on both sides of the transport plate 17. Guide wheels 21 are provided in the middle of both sides of the transport plate 17. Grooves are formed on both sides of the transport plate 17. A pressure block 19 is provided at the upper end of the conveyor belt 1. The lithium battery 22 is transported to the inside of the conveyor plate 17 via the conveyor belt 1. The conveyor plate 17 limits the position of the lithium battery 22 and assists in the transport by the guide wheel 21, so that the lithium battery 22 is transported faster. When the lithium battery 22 is transported to the lower end of the pressure block 19, the third electric telescopic rod 18 is activated, pushing the fixing ring 20 on one side to fix the lithium battery 22. Then the first electric telescopic rod 6 is activated to press down the pressure block 19. The pressure block 19 further seals the battery shell at the upper end of the lithium battery 22, completing the sealing work.

[0023] Reference Figures 1-2 The sealing detection mechanism includes a pad 2. A pad 2 is provided on one side of the baffle 12. A booster 4 is provided on the upper end of one of the pads 2. A second electric telescopic rod 14 is provided on one side of the booster 4. A sealing cover 15 is provided on one side of the second electric telescopic rod 14. The booster 4 is connected to the sealing cover 15 through a second air pipe 16. A side plate 13 is provided on the upper end of the other pad 2. A second electric telescopic rod 14 is provided on one side of the side plate 13. A sealing cover 15 is provided on one side of the second electric telescopic rod 14. When the lithium battery 22 is sealed and transported to the side of the conveyor belt 1, the second electric telescopic rod 14 is activated, pushing the sealing cover 15 to wrap the lithium battery 22 inside. Then the booster 4 is activated, pressurizing the sealing cover 15 through the second air pipe 16 to detect the sealing of the lithium battery 22 and check whether it is completely sealed.

[0024] Working principle: During operation, when the lithium battery 22 is transported to the upper end of the vacuum chamber 9 via the conveyor belt 1, the vacuum chamber 9 will cover the lithium battery 22 for vacuuming. After vacuuming, the battery cover is placed on top. Due to the vacuum inside the lithium battery 22, the battery cover will be attracted. During transport on the conveyor belt 1, the position is guided by the limiting plate 11. The lithium battery 22 is transported to the inside of the transport plate 17 via the conveyor belt 1. The transport plate 17 limits the position of the lithium battery 22 and assists in transporting it with the guide wheel 21, making the lithium battery 22 transported faster. When the lithium battery 22 is transported to the lower end of the pressure block 19, the third electric telescopic rod 18 is activated, pushing the fixing ring 20 on one side to fix the lithium battery 22. Then the first electric telescopic rod 6 is activated, pressing down on the pressure block 19. The pressure block 19 further seals the battery shell at the upper end of the lithium battery 22, completing the sealing work.

[0025] After the lithium battery 22 is sealed, when it is transported to one side of the conveyor belt 1, the second electric telescopic rod 14 is activated, pushing the sealing cover 15 to wrap the lithium battery 22 inside. Then the booster 4 is activated, pressurizing the sealing cover 15 through the second air pipe 16 to test the sealing of the lithium battery 22 and check whether it is completely sealed.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cylindrical lithium battery sealing device, comprising a conveyor belt (1), characterized in that: The upper end of the conveyor belt (1) is provided with a second support (23), the upper end of the second support (23) is provided with a vacuum pump (7), the lower end of the second support (23) is provided with a vacuum cover (9), and the vacuum cover (9) and the vacuum pump (7) are connected through a first air pipe (8); The upper end of the conveyor belt (1) is provided with a plurality of lithium batteries (22), and baffles (12) are provided on both sides of the conveyor belt (1). Limiting plates (11) are symmetrically provided on the upper end of the baffles (12). A side rod (10) is provided on one side of the baffle (12), and the other end of the side rod (10) is provided on the upper end of the baffle (12). The second bracket (23) has a first bracket (5) on one side, and a pressing sealing mechanism is provided below the first bracket (5). A sealing detection mechanism is provided on the other side of the first bracket (5).

2. The cylindrical lithium battery sealing device according to claim 1, characterized in that, The upper end of the baffle (12) is provided with a transport plate (17), and the upper end of the transport plate (17) is provided with a first bracket (5).

3. The cylindrical lithium battery sealing device according to claim 2, characterized in that, The sealing mechanism includes a first electric telescopic rod (6), the first electric telescopic rod (6) is provided at the lower end of the first bracket (5), and a third electric telescopic rod (18) is provided on both sides inside the first bracket (5), and a fixing ring (20) is provided at one end of the third electric telescopic rod (18).

4. The cylindrical lithium battery sealing device according to claim 2, characterized in that, Guide wheels (21) are provided in the middle of both sides of the transport plate (17), grooves are provided on both sides of the transport plate (17), and pressure blocks (19) are provided at the upper end of the transport plate (17).

5. A cylindrical lithium battery sealing device according to claim 1, characterized in that, The sealing detection mechanism includes a pad (2), and a pad (2) is provided on one side of the baffle (12). One of the pads (2) is provided with a booster (4) at its upper end. A second electric telescopic rod (14) is provided on one side of the booster (4). A sealing cover (15) is provided on one side of the second electric telescopic rod (14). The booster (4) is connected to the sealing cover (15) through a second air pipe (16). Another pad (2) is provided with a side plate (13) at its upper end. A second electric telescopic rod (14) is provided on one side of the side plate (13). A sealing cover (15) is provided on one side of the second electric telescopic rod (14).

6. A cylindrical lithium battery sealing device according to claim 3, characterized in that, The first electric telescopic rod (6) is vertically aligned with the pressure block (19), and the fixing ring (20) is horizontally aligned with the grooves on both sides of the transport plate (17).

7. A cylindrical lithium battery sealing device according to claim 1, characterized in that, The conveyor belt (1) has several feet (3) on both sides.

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