Lithium-sulfur battery liquid injection auxiliary device

Abstract

The utility model discloses a lithium-sulfur battery liquid injection auxiliary device, which relates to the technical field of battery liquid injection and comprises a bottom plate, a conveying belt is fixedly mounted on the front side of the upper surface of the bottom plate, guide plates are fixedly connected to the front side and the rear side of the upper surface of the conveying belt, and stand columns are fixedly connected to the left end and the right end of the rear side of the conveying belt on the upper surface of the bottom plate. The front sides of the two stand columns are fixedly connected with moving guide rails, the front side between the two moving guide rails is slidably connected with a liquid injection assembly through a sliding block, supporting plates are fixedly connected between the two stand columns and the bottom plate, an air cylinder is fixedly installed on the side edge of the right supporting plate, and the output end of the air cylinder is fixedly connected with an L-shaped blocking plate. The device has the advantages that the battery is automatically conveyed through the conveying belt, the lifting lead screw driven by the servo motor and the barrier plate controlled by the air cylinder are matched, full-process automation of battery positioning and liquid injection is achieved, manual operation is reduced, the liquid injection efficiency is improved, the liquid injection amount is accurately controlled through the metering pump, and errors caused by manual liquid injection are avoided.

Description

Technical Field

[0001] This utility model relates to the field of battery electrolyte filling technology, specifically to an auxiliary device for lithium-sulfur battery electrolyte filling. Background Technology

[0002] In recent years, lithium-ion batteries have occupied an important position in the field of new energy. However, their limited energy density restricts their application in civilian and military fields such as electric vehicles and drones. Therefore, the development of new high-energy-density battery systems is of great significance to meet the energy and power needs of social production and development. Lithium-sulfur batteries have a theoretical energy density of up to 2600Wh / kg, and sulfur resources are abundant and environmentally friendly, making them one of the most promising high-energy-density battery systems.

[0003] As a novel energy storage device with high energy density and environmental friendliness, lithium-sulfur batteries rely heavily on electrolyte injection for performance and consistency. Traditional equipment lacks efficient positioning mechanisms, making batteries prone to displacement during transport. This leads to misalignment between the injection tube and the battery injection port, causing liquid splashing or leakage, which affects production yield. Most devices rely on open injection systems, making it difficult to accurately measure electrolyte flow, resulting in fluctuations in injection volume and affecting the consistency of battery electrochemical performance. To address these issues, a lithium-sulfur battery electrolyte injection auxiliary device is proposed. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a lithium-sulfur battery electrolyte injection auxiliary device. This device solves the problems of existing traditional equipment lacking an efficient positioning mechanism, causing batteries to easily shift during transport, resulting in misalignment between the injection pipe and the battery injection port, leading to liquid splashing or leakage, affecting production yield, and most devices relying on open injection systems, making it difficult to achieve accurate measurement of electrolyte flow, easily causing fluctuations in injection volume, and thus affecting the consistency of battery electrochemical performance.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a lithium-sulfur battery liquid injection auxiliary device, including a base plate, a conveyor belt fixedly installed on the front side of the upper surface of the base plate, guide plates fixedly connected to both the front and rear sides of the upper surface of the conveyor belt, columns fixedly connected to the left and right ends of the rear side of the upper surface of the base plate, movable guide rails fixedly connected to the front sides of the two columns, a liquid injection component slidably connected between the two movable guide rails via a sliding block, a support plate fixedly connected between the two columns and the base plate, a cylinder fixedly installed on the side of the right support plate, and an L-shaped baffle plate fixedly connected to the output end of the cylinder.

[0006] Preferably, a first fixing plate is fixedly connected above the two columns, and a second fixing plate is fixedly connected below the two columns. A lifting screw is rotatably connected between the first fixing plate and the second fixing plate.

[0007] Preferably, a servo motor is fixedly installed in the middle of the upper surface of the first fixed plate. The output end of the servo motor passes through the first fixed plate and is fixedly connected to the top of the lifting screw through a coupling. A screw sleeve is threaded onto the outer surface of the lifting screw, and a connecting block is fixedly connected above the screw sleeve.

[0008] Preferably, the injection assembly includes a movable plate, the rear side of which is fixedly connected to a connecting block, and the left and right ends of the rear side of the movable plate are slidably connected to two movable guide rails via sliding blocks.

[0009] Preferably, a first connecting plate is fixedly connected to the upper center of the movable plate, and a second connecting plate is fixedly connected to the lower center of the movable plate.

[0010] Preferably, a metering pump is fixedly installed on the upper surface of the first connecting plate, and an inlet pipe is fixedly connected to the output end of the metering pump. The end of the inlet pipe passes through the first connecting plate and is fixedly connected to a connecting pipe.

[0011] Preferably, a plurality of injection tubes are fixedly connected to the lower part of the connecting tube, and the bottom of the injection tubes passes through the second connecting plate and is fixedly connected to the second connecting plate.

[0012] Compared with the prior art, the advantages of this utility model are as follows: This utility model automatically transports batteries via a conveyor belt, and, in conjunction with a servo motor-driven lifting screw and a cylinder-controlled baffle plate, achieves full automation of battery positioning and liquid injection, reducing manual operation and improving injection efficiency. The metering pump precisely controls the injection volume, avoiding errors from manual injection. The injection pipe is fixed by a second connecting plate to ensure accurate injection position and prevent liquid splashing or leakage. The guide plate guides the batteries to be neatly arranged on the conveyor belt, and the baffle plate, driven by a cylinder, achieves precise positioning of the batteries, preventing battery displacement during injection and ensuring injection consistency. The lifting screw can adjust the height of the injection components to adapt to the injection needs of lithium-sulfur batteries of different specifications. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a structural schematic diagram of the present invention from another perspective;

[0015] Figure 3 This is a schematic diagram of the liquid injection assembly structure in this utility model;

[0016] Figure 4 for Figure 1 A magnified view of a portion of point A in the middle.

[0017] The numbers on the map are:

[0018] 1. Base plate; 2. Conveyor belt; 3. Guide plate; 4. Column; 5. Support plate; 6. Cylinder; 7. Baffle plate; 8. Moving guide rail; 9. Injection assembly; 901. Moving plate; 902. First connecting plate; 903. Second connecting plate; 904. Metering pump; 905. Inlet pipe; 906. Connecting pipe; 907. Injection pipe; 10. First fixing plate; 11. Second fixing plate; 12. Lifting screw; 13. Screw sleeve; 14. Connecting block; 15. Servo motor. Detailed Implementation

[0019] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0020] Reference Figure 1-4 As shown, a lithium-sulfur battery electrolyte injection auxiliary device includes a base plate 1. A conveyor belt 2 is fixedly installed on the front side of the upper surface of the base plate 1. The operation of the conveyor belt 2 is driven by a stepper motor to achieve precise delivery of batteries one by one, avoiding confusion caused by multiple batteries entering the electrolyte injection area at the same time, and improving the accuracy and efficiency of the electrolyte injection process. Guide plates 3 are fixedly connected to both the front and rear sides of the upper surface of the conveyor belt 2. Columns 4 are fixedly connected to the left and right ends of the rear side of the upper surface of the base plate 1. Moving guide rails 8 are fixedly connected to the front sides of the two columns 4. An electrolyte injection component 9 is slidably connected between the two moving guide rails 8 via a sliding block. Support plates 5 are fixedly connected between the two columns 4 and the base plate 1. A cylinder 6 is fixedly installed on the side of the right support plate 5. An L-shaped blocking plate 7 is fixedly connected to the output end of the cylinder 6. When the battery moves to the designated position, the cylinder 6 can quickly push the blocking plate 7 to the right, accurately blocking the battery from moving forward and keeping the battery in the correct position below the electrolyte injection component 9, ensuring the accuracy of the electrolyte injection operation.

[0021] Reference Figure 1 As shown, a first fixing plate 10 is fixedly connected above the two columns 4, and a second fixing plate 11 is fixedly connected below the two columns 4. A lifting screw 12 is rotatably connected between the first fixing plate 10 and the second fixing plate 11. The lifting screw 12 can rotate between the first fixing plate 10 and the second fixing plate 11. Through the threaded engagement with the screw sleeve 13, the lifting adjustment of the liquid injection assembly 9 is realized to adapt to the liquid injection requirements of lithium-sulfur batteries of different specifications.

[0022] Reference Figure 2As shown, a servo motor 15 is fixedly installed in the middle of the upper surface of the first fixed plate 10. The output end of the servo motor 15 passes through the first fixed plate 10 and is fixedly connected to the top of the lifting screw 12 through a coupling. A screw sleeve 13 is threadedly connected to the outer surface of the lifting screw 12. A connecting block 14 is fixedly connected above the screw sleeve 13. When the lifting screw 12 rotates, the screw sleeve 13 can drive the connecting block 14 to move up and down. The connecting block 14 is fixedly connected to the moving plate 901 of the liquid injection assembly 9, thereby realizing the lifting and lowering movement of the liquid injection assembly 9. This transmission method is stable and precise, which can ensure the accurate docking of the liquid injection tube 907 with the battery liquid injection port.

[0023] Reference Figure 1 and Figure 3 As shown, the injection assembly 9 includes a movable plate 901. The rear side of the movable plate 901 is fixedly connected to the connecting block 14. The left and right ends of the rear side of the movable plate 901 are slidably connected to two movable guide rails 8 through sliding blocks. The movable plate 901 of the injection assembly 9 is connected to the movable guide rails 8 through sliding blocks to ensure that the lifting process is smooth and without shaking.

[0024] Reference Figure 1 and Figure 3 As shown, a first connecting plate 902 is fixedly connected to the upper middle part of the movable plate 901, and a second connecting plate 903 is fixedly connected to the lower middle part of the movable plate 901. The first connecting plate 902 and the second connecting plate 903 provide installation positions for components such as the metering pump 904 and the injection pipe 907, making the structure of the injection assembly 9 more compact and reasonable.

[0025] Reference Figure 1 and Figure 3 As shown, a metering pump 904 is fixedly installed on the upper surface of the first connecting plate 902. The output end of the metering pump 904 is fixedly connected to an inlet pipe 905. The end of the inlet pipe 905 passes through the first connecting plate 902 and is fixedly connected to a connecting pipe 906. The output end of the metering pump 904 is connected to the injection pipe 907 through the inlet pipe 905 and the connecting pipe 906, thereby realizing the delivery of electrolyte.

[0026] Reference Figure 1 and Figure 3 As shown, several injection tubes 907 are fixedly connected below the connecting tube 906. The bottom of the injection tube 907 passes through the second connecting plate 903 and is fixedly connected to the second connecting plate 903. This ensures that the injection direction is vertical, avoids injection deviation caused by the tilt of the injection tube 907, and further improves the accuracy of injection.

[0027] Working principle: The lithium-sulfur battery is placed on the conveyor belt 2 and moves to the right with the conveyor belt 2. The guide plates 3 on the front and rear sides guide the battery to keep it in a straight line and avoid deviation. When the battery moves to the right side of the conveyor belt 2, the cylinder 6 on the right support plate 5 is activated, pushing the blocking plate 7 forward to stop the battery from moving further and make the battery stop precisely at the designated position below the liquid injection assembly 9. According to the battery height, the servo motor 15 drives the lifting screw 12 to rotate. The screw sleeve 13 drives the connecting block 14 and the liquid injection assembly 9 to move up and down along the moving guide rail 8 to adjust the height of the liquid injection pipe 907 so that it is aligned with the battery liquid injection port. The metering pump 90... 4. Upon startup, the electrolyte is transported from the storage container through the inlet pipe 905 and connecting pipe 906 to the injection pipe 907, and finally injected into the battery. The metering pump 904 precisely controls the electrolyte flow rate to ensure that the injection volume of each battery is consistent. The bottom of the injection pipe 907 passes through the second connecting plate 903 and is fixed to ensure that the injection direction is vertical and to avoid injection deviation caused by tilting. After the injection is completed, the cylinder 6 retracts, the baffle plate 7 retracts to the right, the conveyor belt 2 restarts, and the injected battery is transported to the next process. The servo motor output end 15 reverses, the injection component 9 is reset to the initial height, and it waits for the next batch of batteries to be delivered to the position, and the injection process is repeated.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lithium-sulfur battery electrolyte injection auxiliary device, characterized in that: Includes a base plate (1), on which a conveyor belt (2) is fixedly installed on the front side of the upper surface of the base plate (1), and guide plates (3) are fixedly connected to both the front and rear sides of the upper surface of the conveyor belt (2). Columns (4) are fixedly connected to both the left and right ends of the rear side of the conveyor belt (2) on the upper surface of the base plate (1). Movable guide rails (8) are fixedly connected to the front side of the two columns (4). An injection assembly (9) is slidably connected between the two movable guide rails (8) through a sliding block. Support plates (5) are fixedly connected between the two columns (4) and the base plate (1). A cylinder (6) is fixedly installed on the side of the support plate (5) on the right side. An L-shaped baffle plate (7) is fixedly connected to the output end of the cylinder (6).

2. The lithium-sulfur battery electrolyte injection auxiliary device according to claim 1, characterized in that: A first fixing plate (10) is fixedly connected above the two columns (4), and a second fixing plate (11) is fixedly connected below the two columns (4). A lifting screw (12) is rotatably connected between the first fixing plate (10) and the second fixing plate (11).

3. The lithium-sulfur battery electrolyte injection auxiliary device according to claim 2, characterized in that: A servo motor (15) is fixedly installed in the middle of the upper surface of the first fixed plate (10). The output end of the servo motor (15) passes through the first fixed plate (10) and is fixedly connected to the top of the lifting screw (12) through a coupling. A screw sleeve (13) is threadedly connected to the outer surface of the lifting screw (12). A connecting block (14) is fixedly connected above the screw sleeve (13).

4. A lithium-sulfur battery electrolyte injection auxiliary device according to any one of claims 1-3, characterized in that: The liquid injection assembly (9) includes a movable plate (901), the rear side of which is fixedly connected to the connecting block (14), and the left and right ends of the rear side of the movable plate (901) are slidably connected to two movable guide rails (8) through sliding blocks.

5. The lithium-sulfur battery electrolyte injection auxiliary device according to claim 4, characterized in that: A first connecting plate (902) is fixedly connected to the upper middle part of the movable plate (901), and a second connecting plate (903) is fixedly connected to the lower middle part of the movable plate (901).

6. The lithium-sulfur battery electrolyte injection auxiliary device according to claim 5, characterized in that: A metering pump (904) is fixedly installed on the upper surface of the first connecting plate (902). The output end of the metering pump (904) is fixedly connected to an inlet pipe (905). The end of the inlet pipe (905) passes through the first connecting plate (902) and is fixedly connected to a connecting pipe (906).

7. The lithium-sulfur battery electrolyte injection auxiliary device according to claim 6, characterized in that: A plurality of injection tubes (907) are fixedly connected below the connecting tube (906). The bottom of the injection tube (907) passes through the second connecting plate (903) and is fixedly connected to the second connecting plate (903).

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