A lithium replenishment filling device that avoids dripping

Abstract

This utility model discloses a lithium replenishing agent filling device to prevent dripping in the field of battery manufacturing technology. It includes a base, a frame fixedly mounted on the top of the base, a material tank fixedly mounted on the top of the frame, a corrugated pipe fixedly connected to the bottom of the material tank, and a filling head fixedly connected to the other end of the corrugated pipe. A valve is provided on the filling head. This utility model, by setting up horizontal plates and limiting components, allows the operator to use a lifting component to bring the filling head close to the battery's filling port for filling. The two horizontal plates are moved away from the nozzle of the filling head by the limiting components, allowing the lithium replenishing agent to be injected into the battery. After filling, when the filling head moves upward, the two horizontal plates can move towards each other through the limiting components, thereby sealing the nozzle of the filling head and preventing the lithium replenishing agent remaining on the inner wall of the filling head from dripping, thus avoiding waste and pollution caused by residual lithium replenishing agent dripping.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, and in particular to a lithium replenishment filling device that avoids dripping. Background Technology

[0002] Lithium-ion batteries have been widely used in the new energy field due to their unique advantages. With the development of new energy vehicles, the requirements for lithium batteries are getting higher and higher, especially cycle life and energy density. In order to solve the problem of energy density of lithium-ion batteries, staff need to use lithium replenishment devices to compensate for the active lithium lost during the first charge and discharge of the battery, so as to improve the battery energy density and cycle life.

[0003] However, existing technologies have some problems: when using existing battery lithium replenishment filling devices, after filling one battery, it is necessary to replace it with another battery for filling. During the battery replacement process, the lithium replenishment remaining on the inner wall of the filling head often drips down from the nozzle, which not only wastes the lithium replenishment but also pollutes the working environment. Therefore, we propose a lithium replenishment filling device that avoids dripping. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a lithium replenishing agent filling device that prevents dripping. By sealing the nozzle of the filling head after each filling, residual lithium replenishing agent dripping can be prevented from causing waste and pollution.

[0005] The purpose of this utility model is achieved as follows: a lithium replenishment filling device that avoids dripping includes a base, a frame fixedly installed on the top of the base, a material bucket fixedly installed on the top of the frame, a corrugated pipe fixedly connected to the bottom of the material bucket, a filling head fixedly connected to the other end of the corrugated pipe, a valve provided on the filling head, and a lifting assembly connecting the filling head and the frame. The lifting assembly is used to control the filling head to move closer to and away from the battery. A support plate is fixedly installed on the outer surface of the filling head, and vertical plates are fixedly installed on both sides of the bottom of the support plate. A horizontal plate located below the filling head is movably inserted into the vertical plate. The horizontal plate is connected to the support plate through a limiting assembly, and the horizontal plate can block the nozzle of the filling head through the limiting assembly.

[0006] Optionally, the lifting assembly includes a hydraulic cylinder, which is fixedly installed on the top of the inner wall of the frame. The telescopic end of the hydraulic cylinder is fixedly connected to a connecting plate, and the injection head is fixedly connected to the connecting plate.

[0007] Optionally, the limiting component includes a round rod that is movably inserted into a bearing plate. A square plate is fixedly connected to the horizontal plate, and an oblique hole is provided on the square plate. A round block located inside the oblique hole is fixedly installed on the round rod.

[0008] Optionally, a top plate is fixedly installed on the top of the round rod, and a spring is movably sleeved on the outer surface of the round rod, with the two ends of the spring fixedly connected to the bearing plate and the top plate, respectively.

[0009] Optionally, a washer is fixedly installed at the bottom of the round rod, and the washer is circular in shape.

[0010] Optionally, the diameter of the circular block is adapted to the width of the oblique hole, and the inner wall of the oblique hole is coated with a lubricating layer.

[0011] Optionally, a stop block is fixedly installed on the opposite surfaces of the two horizontal plates, and the stop block has the same thickness as the horizontal plate.

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

[0013] This invention, by setting up horizontal plates and limiting components, allows the operator to bring the filling head close to the filling port of the battery using a lifting component during use. The two horizontal plates are moved away from the nozzle of the filling head by the limiting component, allowing the lithium replenishing agent to be injected into the battery. After filling, when the filling head moves upward, the two horizontal plates can move towards each other by the limiting component, thereby sealing the nozzle of the filling head and preventing the lithium replenishing agent remaining on the inner wall of the filling head from dripping down, thus avoiding waste and pollution caused by residual lithium replenishing agent dripping down. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram provided by this utility model.

[0016] Figure 2 This is a front sectional view of the structure provided by this utility model.

[0017] Figure 3 This is a partial cross-sectional view of the side structure provided by this utility model.

[0018] Figure 4 This is a schematic diagram of the installation structure of the horizontal plate provided by this utility model.

[0019] Figure 5 This is a cross-sectional view of the internal structure of the vertical plate provided by this utility model.

[0020] In the diagram: 1. Base; 2. Frame; 3. Material bucket; 4. Corrugated pipe; 5. Injection head; 6. Valve; 7. Vertical plate; 8. Horizontal plate; 9. Hydraulic cylinder; 10. Connecting plate; 11. Bearing plate; 12. Round rod; 13. Square plate; 14. Slanted hole; 15. Round block; 16. Top plate; 17. Spring; 18. Shim; 19. Stop block. Detailed Implementation

[0021] 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.

[0022] like Figures 1 to 5 As shown in the figure, the lithium replenishment filling device provided by this utility model embodiment to avoid dripping includes a base 1, a frame 2 fixedly installed on the top of the base 1, a material tank 3 fixedly installed on the top of the frame 2, a corrugated pipe 4 fixedly connected to the bottom of the material tank 3, a filling head 5 fixedly connected to the other end of the corrugated pipe 4, a valve 6 provided on the filling head 5, and a lifting component connected to the filling head 5 and the frame 2. The lifting component is used to control the filling head 5 to move closer to and away from the battery. A support plate 11 is fixedly installed on the outer surface of the filling head 5, and vertical plates 7 are fixedly installed on both sides of the bottom of the support plate 11. A horizontal plate 8 located below the filling head 5 is movably inserted into the vertical plate 7. The horizontal plate 8 is connected to the support plate 11 through a limiting component. The horizontal plate 8 can block the nozzle of the filling head 5 through the limiting component.

[0023] The lifting assembly can control the filling head 5 to approach the filling port of the battery to fill with lithium additive. At the same time, when the filling head 5 approaches the filling port of the battery, the two horizontal plates 8 can move outward from the bottom of the filling head 5 through the limiting assembly to release the blockage of the nozzle of the filling head 5, so that the filling work can be carried out normally.

[0024] Furthermore, the lifting assembly includes a hydraulic cylinder 9, which is fixedly installed on the top of the inner wall of the frame 2. The telescopic end of the hydraulic cylinder 9 is fixedly connected to a connecting plate 10, and the injection head 5 is fixedly connected to the connecting plate 10.

[0025] By activating the hydraulic cylinder 9, the connecting plate 10 can drive the filling head 5 to move up or down, and can also drive the bellows 4 to extend or retract, thereby allowing the filling head 5 to move closer to or further away from the filling port of the battery.

[0026] Furthermore, the limiting component includes a round rod 12, which is movably inserted into the bearing plate 11. A square plate 13 is fixedly connected to the horizontal plate 8. An oblique hole 14 is provided on the square plate 13. A round block 15 located inside the oblique hole 14 is fixedly installed on the round rod 12.

[0027] When the hydraulic cylinder 9 drives the filling head 5 to move downward, the round rod 12 will first abut against the surface of the battery. As the filling head 5 drives the support plate 11 to continue moving downward, the round rod 12 will drive the round block 15 to move upward relative to the support plate 11, thereby squeezing the inner wall of the inclined hole 14. This causes the two square plates 13 to drive the two horizontal plates 8 to move in opposite directions. Thus, before the filling head 5 reaches the battery filling port, the horizontal plates 8 can release the blockage of the filling head 5 nozzle, and then the filling work can be carried out.

[0028] Furthermore, a top plate 16 is fixedly installed on the top of the round rod 12, and a spring 17 is movably sleeved on the outer surface of the round rod 12. The two ends of the spring 17 are respectively fixedly connected to the bearing plate 11 and the top plate 16.

[0029] By setting the spring 17 to a stretched state, the spring 17's elasticity will cause the round rod 12 to tend to move downwards. Thus, when not being filled, the round block 15 can squeeze the inner wall of the inclined hole 14, causing the two horizontal plates 8 to block the nozzle of the filling head 5, preventing residual lithium replenishing agent on the inner wall of the filling head 5 from dripping and causing pollution and waste.

[0030] Furthermore, a gasket 18 is fixedly installed at the bottom of the round rod 12, and the gasket 18 is circular in appearance.

[0031] The gasket 18 can be made of rubber. Due to the soft nature of rubber, the round rod 12 can be prevented from making direct hard contact with the battery, thus providing good protection for the battery during filling.

[0032] Furthermore, the diameter of the circular block 15 is matched with the width of the oblique hole 14, and the inner wall of the oblique hole 14 is coated with a lubricating layer.

[0033] By coating the inner wall of the inclined hole 14 with a lubricating layer, the circular block 15 can slide more smoothly inside the inclined hole 14.

[0034] Furthermore, a stop block 19 is fixedly installed on the opposite surfaces of the two horizontal plates 8, and the stop block 19 has the same thickness as the horizontal plate 8.

[0035] The stop block 19 can be made of corrosion-resistant rubber. Due to the elasticity of the rubber, the two stop blocks 19 fit together more tightly, thereby further improving the sealing performance of the injection head 5 nozzle.

[0036] Working principle and usage process of this utility model:

[0037] First, the operator places the battery on the base 1, aligning the battery filling port with the filling head 5. Then, the hydraulic cylinder 9 is activated, causing the filling head 5 to move downwards. As the filling head 5 moves, the gasket 18 first abuts against the battery. As the filling head 5 continues to move downwards, the round rod 12 drives the round block 15 to move upwards relative to the support plate 11, thereby squeezing the inner wall of the inclined hole 14. This causes the two square plates 13 to drive the two horizontal plates 8 and the two stops 19 to move in opposite directions. Thus, before the filling head 5 reaches the battery filling port, the horizontal plates 8 and the stops 19 are in a state of tension. 9. Release the blockage on the nozzle of the filling head 5, and then open the valve 6 to carry out the filling work. After the filling is completed, close the valve 6, and then start the hydraulic cylinder 9 to make the filling head 5 move upward. As the filling head 5 moves, the gasket 18 gradually detaches from the battery. Under the elastic force of the spring 17, the round rod 12 will drive the round block 15 to move downward, which will cause the two horizontal plates 8 to drive the two stops 19 to move towards each other, thereby blocking the nozzle of the filling head 5 and preventing the residual lithium replenishing agent on the inner wall of the filling head 5 from dripping and causing pollution and waste.

[0038] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A lithium replenishment filling device to prevent dripping, comprising a base (1), a frame (2) fixedly mounted on the top of the base (1), a material tank (3) fixedly mounted on the top of the frame (2), a corrugated pipe (4) fixedly connected to the bottom of the material tank (3), a filling head (5) fixedly connected to the other end of the corrugated pipe (4), and a valve (6) provided on the filling head (5), characterized in that: The filling head (5) is also connected to the frame (2) by a lifting assembly. The lifting assembly is used to control the filling head (5) to move closer to and away from the battery. A support plate (11) is fixedly installed on the outer surface of the filling head (5). Vertical plates (7) are fixedly installed on both sides of the bottom of the support plate (11). A horizontal plate (8) located below the filling head (5) is movably inserted on the vertical plate (7). The horizontal plate (8) is also connected to the support plate (11) by a limiting assembly. The horizontal plate (8) can block the nozzle of the filling head (5) through the limiting assembly.

2. The lithium replenishment filling device for preventing dripping according to claim 1, characterized in that: The lifting assembly includes a hydraulic cylinder (9), which is fixedly installed on the top of the inner wall of the frame (2). The telescopic end of the hydraulic cylinder (9) is fixedly connected to a connecting plate (10), and the injection head (5) is fixedly connected to the connecting plate (10).

3. The lithium replenishment filling device for preventing dripping according to claim 1, characterized in that: The limiting component includes a round rod (12), which is movably inserted into the bearing plate (11). A square plate (13) is fixedly connected to the horizontal plate (8). An oblique hole (14) is provided on the square plate (13). A round block (15) located inside the oblique hole (14) is fixedly installed on the round rod (12).

4. The lithium replenishment filling device for preventing dripping according to claim 3, characterized in that: A top plate (16) is fixedly installed on the top of the round rod (12), and a spring (17) is movably sleeved on the outer surface of the round rod (12). The two ends of the spring (17) are respectively fixedly connected to the bearing plate (11) and the top plate (16).

5. A lithium replenishment filling device to avoid dripping according to claim 3, characterized in that: A gasket (18) is fixedly installed at the bottom of the round rod (12), and the gasket (18) is round in appearance.

6. A lithium replenishment filling device to avoid dripping according to claim 3, characterized in that: The diameter of the circular block (15) is matched with the width of the oblique hole (14), and the inner wall of the oblique hole (14) is coated with a lubricating layer.

7. A lithium replenishment filling device to avoid dripping according to claim 1, characterized in that: Both of the two horizontal plates (8) are fixedly mounted with blocks (19) on their opposite sides, and the blocks (19) have the same thickness as the horizontal plates (8).

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