High-precision liquid injection equipment for lithium battery

Abstract

The high-precision liquid injection equipment comprises a liquid injection table, the upper surface of the liquid injection table is fixedly connected with a fixing frame, the upper surface of the fixing frame is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a lead screw, and the outer surface of the lead screw is in threaded connection with a connecting plate. By arranging the sliding rod, the floating block, the fixed block, the button switch and the buzzer, the liquid level of an electrolyte in the liquid tank can be monitored, when the electrolyte in the liquid tank is consumed to a certain threshold value, the button switch can be triggered by making contact with the liquid tank along with downward movement of the floating block, and therefore the buzzer is started to give an alarm, so that a worker needs to add the electrolyte, and the working efficiency is improved. And by arranging a third motor, a reciprocating lead screw, a fixing plate, a second guide rod, a fourth motor, a rotating shaft and stirring blades, the stirring blades can be driven to move back and forth in the electrolyte in the liquid tank for stirring, so that uniform mixing of the electrolyte is effectively promoted, and the precipitation phenomenon is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid injection equipment, in particular to high-precision liquid injection equipment for lithium batteries. Background Art

[0002] With the transformation of the global energy structure and the popularization of the concept of sustainable development, lithium batteries, as an efficient and environmentally friendly energy storage device, have been widely used in electric vehicles, portable electronic devices and energy storage systems. The performance and quality of lithium batteries are directly related to the safety and reliability of their application, and the injection of electrolyte is a crucial part of the lithium battery production process.

[0003] However, the existing high-precision liquid injection equipment for lithium batteries still has certain defects. For example, it is inconvenient to monitor the electrolyte level in the liquid tank, resulting in the electrolyte inside the liquid tank cannot be replenished in time, causing long-term downtime and affecting work efficiency; secondly, the electrolyte is usually in a static state in the liquid tank, which can easily lead to precipitation. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a high-precision liquid filling device for lithium batteries, which can monitor the liquid level of the electrolyte in the liquid tank. When the electrolyte inside the liquid tank is consumed to a certain threshold, the button switch will be triggered by contacting the liquid tank as the floating block moves downward, thereby starting the buzzer to alarm, so that the staff should add electrolyte, and can drive the stirring blades to move back and forth in the electrolyte inside the liquid tank to stir, thereby effectively promoting the uniform mixing of the electrolyte and avoiding precipitation.

[0005] The utility model also provides a high-precision liquid injection device for a lithium battery, comprising:

[0006] The top surface of the liquid filling platform is fixedly connected with a fixing frame, the top surface of the fixing frame is fixedly connected with a first motor, an output end of the first motor is fixedly connected with a screw, the outer surface of the screw is threadedly connected with a connecting plate, the inner surface of the connecting plate is slidably connected with a first guide rod, the upper surface of the fixing frame is fixedly connected with a liquid tank, the lower surface of the liquid tank is fixedly connected with a water pump, the output end of the water pump is provided with a hose, the end of the hose away from the water pump is fixedly connected with a liquid filling head, the inner surface of the liquid tank is slidably connected with a sliding rod, the lower end of the sliding rod is fixedly connected with a floating block, the upper end of the sliding rod is fixedly connected with a fixing block, the lower surface of the fixing block is provided with a button switch, the upper surface of the liquid filling platform is fixedly connected with a placing bin, the side surface of the placing bin is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a bidirectional screw, the outer surface of the bidirectional screw is threadedly connected with a T-shaped clamping plate, and a buzzer is provided on the upper surface of the liquid tank.

[0007] A liquid adding pipe is fixedly connected to the inner surface of the liquid tank, a partition is fixedly connected to the inner surface of the liquid tank, a third motor is fixedly connected to the upper surface of the liquid tank, a reciprocating screw is fixedly connected to the output end of the third motor, a fixed plate is threadedly connected to the outer surface of the reciprocating screw, a second guide rod is slidably connected to the inner surface of the fixed plate, a fourth motor is fixedly connected to the upper surface of the fixed plate, a rotating shaft is fixedly connected to the output end of the fourth motor, and a stirring blade is fixedly connected to the outer surface of the rotating shaft.

[0008] According to the high-precision liquid injection equipment for lithium batteries, the outer surface of the connecting plate is slidably connected to the fixed frame, the upper end of the first guide rod is fixedly connected to the fixed frame, and the lower end of the first guide rod is fixedly connected to the liquid injection platform.

[0009] According to the high-precision liquid injection equipment for lithium batteries, the outer surface of the liquid injection head is fixedly connected to the connecting plate, and the input end of the water pump extends into the interior of the liquid tank.

[0010] According to the high-precision liquid injection equipment for lithium batteries, the outer surface of the sliding rod is slidably connected to the partition, and the button switch is electrically connected to the buzzer, which is convenient for controlling the buzzer to sound a buzzing alarm.

[0011] According to the high-precision liquid injection equipment for lithium batteries, there are two T-shaped clamping plates distributed on the left and right, which is convenient for clamping the battery. The outer surface of the T-shaped clamping plate is slidably connected to the placement bin, which is convenient for limiting the movement of the T-shaped clamping plate.

[0012] According to the high-precision liquid injection equipment for lithium batteries, the outer surface of the liquid filling tube is fixedly connected to the partition, and the outer surface of the reciprocating screw is rotatably connected to the partition.

[0013] According to the high-precision liquid injection equipment for lithium batteries, the upper end of the second guide rod is fixedly connected to the liquid box, the lower end of the second guide rod is fixedly connected to the partition, and the outer surface of the rotating shaft is slidably connected to the partition.

[0014] According to the high-precision liquid injection equipment for lithium batteries, the first motor, the water pump, the second motor, the third motor, and the buzzer are all electrically connected to an external power supply.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. By setting the slide bar, float block, fixed block, button switch and buzzer, the electrolyte level in the tank can be monitored. When the electrolyte in the tank is consumed to a certain threshold, the button switch will be triggered by contacting the tank as the float block moves downward, thereby activating the buzzer to alarm so that the staff should add electrolyte;

[0017] 2. By setting up the third motor, reciprocating screw, fixed plate, second guide rod, fourth motor, rotating shaft and stirring blades, the stirring blades can be driven to move back and forth and stir the electrolyte inside the liquid tank, thereby effectively promoting uniform mixing of the electrolyte and avoiding precipitation.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0020] Figure 1 This is a schematic diagram of the overall structure of a high-precision liquid injection device for lithium batteries of the utility model;

[0021] Figure 2 This is a partial structural cross-sectional view of a high-precision liquid injection device for lithium batteries of the utility model;

[0022] Figure 3 This is a cross-sectional view of the liquid tank structure of a high-precision liquid injection device for lithium batteries of the utility model;

[0023] Figure 4 The utility model is a schematic diagram of the internal structure of a high-precision liquid injection device for lithium batteries.

[0024] Legend:

[0025] 1. Liquid injection table; 2. Fixed frame; 3. First motor; 4. Lead screw; 5. Connecting plate; 6. First guide rod; 7. Liquid tank; 8. Water pump; 9. Hose; 10. Liquid injection head; 11. Slide bar; 12. Float block; 13. Fixed block; 14. Push button switch; 15. Placement bin; 16. Second motor; 17. Bidirectional lead screw; 18. T-shaped clamping plate; 19. Liquid adding tube; 20. Partition; 21. Third motor; 22. Reciprocating lead screw; 23. Fixed plate; 24. Second guide rod; 25. Fourth motor; 26. Rotating shaft; 27. Stirring blade; 28. Buzzer. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0027] Reference Figure 1-4The utility model embodiment is a high-precision liquid injection device for lithium batteries, which includes: a liquid injection platform 1, a fixing frame 2 is fixedly connected to the upper surface of the liquid injection platform 1, a first motor 3 is fixedly connected to the upper surface of the fixing frame 2, a lead screw 4 is fixedly connected to the output end of the first motor 3, a connecting plate 5 is threadedly connected to the outer surface of the lead screw 4, a first guide rod 6 is slidably connected to the inner surface of the connecting plate 5, a liquid tank 7 is fixedly connected to the upper surface of the fixing frame 2, a water pump 8 is fixedly connected to the lower surface of the liquid tank 7, a hose 9 is provided at the output end of the water pump 8, a liquid injection head 10 is fixedly connected to the inner surface of the hose 9 away from the water pump 8, a sliding rod 11 is slidably connected to the inner surface of the liquid tank 7, a floating block 12 is fixedly connected to the lower end of the sliding rod 11, a fixed block 13 is fixedly connected to the upper end of the sliding rod 11, and a button switch 14 is provided on the lower surface of the fixed block 13 (prior art, application number CN202321229104.0), the upper surface of the liquid injection platform 1 is fixedly connected to the upper surface of the fixing frame 2, and a first guide rod 6 is slidably connected to the output end of the fixing frame 2. A placement bin 15 is fixedly connected, a second motor 16 is fixedly connected to the side surface of the placement bin 15, a bidirectional lead screw 17 is fixedly connected to the output end of the second motor 16, a T-shaped clamping plate 18 is threadedly connected to the outer surface of the bidirectional lead screw 17, a buzzer 28 (prior art, application number CN202322923778.7) is provided on the upper surface of the liquid tank 7, the outer surface of the connecting plate 5 is slidably connected to the fixed frame 2, the upper end of the first guide rod 6 is fixedly connected to the fixed frame 2, the lower end of the first guide rod 6 is fixedly connected to the injection platform 1, the outer surface of the injection head 10 is fixedly connected to the connecting plate 5, the input end of the water pump 8 extends into the interior of the liquid tank 7, the button switch 14 is electrically connected to the buzzer 28, the number of T-shaped clamping plates 18 is two and they are distributed on the left and right, the outer surface of the T-shaped clamping plate 18 is slidably connected to the placement bin 15, the first motor 3, the water pump 8, the second motor 16, and the buzzer 28 are all electrically connected to an external power supply.

[0028] The inner surface of the liquid tank 7 is fixedly connected with a liquid adding pipe 19, the inner surface of the liquid tank 7 is fixedly connected with a partition 20, the upper surface of the liquid tank 7 is fixedly connected with a third motor 21, the output end of the third motor 21 is fixedly connected with a reciprocating screw 22, the outer surface of the reciprocating screw 22 is threadedly connected with a fixed plate 23, the inner surface of the fixed plate 23 is slidably connected with a second guide rod 24, the upper surface of the fixed plate 23 is fixedly connected with a fourth motor 25, the output end of the fourth motor 25 is fixedly connected with a rotating shaft 26, the outer surface of the rotating shaft 26 is fixedly connected with a stirring blade 27, the outer surface of the sliding rod 11 is slidably connected to the partition 20, the outer surface of the liquid adding pipe 19 is fixedly connected to the partition 20, the outer surface of the reciprocating screw 22 is rotatably connected to the partition 20, the upper end of the second guide rod 24 is fixedly connected to the liquid tank 7, the lower end of the second guide rod 24 is fixedly connected to the partition 20, the outer surface of the rotating shaft 26 is slidably connected to the partition 20, and the third motor 21 is electrically connected to an external power supply.

[0029] Working principle: When in use, place the battery inside the placement bin 15, then start the second motor 16, drive the bidirectional lead screw 17 to drive the T-shaped clamping plates 18 on both sides to move toward each other, so as to clamp and fix the battery, then start the first motor 3, drive the lead screw 4 to drive the injection head 10 to move downward along the first guide rod 6 under the action of the connecting plate 5, so that the injection head 10 is aligned with the battery injection port, then start the water pump 8, absorb the electrolyte inside the liquid tank 7 and then send it to the injection head 10 through the hose 9 for output, so as to realize the injection operation of the battery, and during the injection process, start the third motor 21 and the fourth motor 25 at the same time, under the action of the fourth motor 25 Under the action of the third motor 21, the reciprocating screw 22 is driven to drive the rotating stirring blade 27 to move up and down along the second guide rod 24 under the action of the fixed plate 23, so that the electrolyte inside the liquid tank 7 is stirred back and forth, so that the electrolyte can be fully mixed to avoid precipitation. When the electrolyte inside the liquid tank 7 is slowly consumed, the float 12 will drop as the liquid level of the electrolyte drops. When the electrolyte is consumed to a certain threshold, the button switch 14 will contact the liquid tank 7 and be triggered, thereby sending an electrical signal to start the buzzer 28 to alarm, thereby reminding the staff to add electrolyte.

[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A high-precision liquid injection device for lithium batteries, characterized in that: include: A liquid injection platform (1), wherein the upper surface of the liquid injection platform (1) is fixedly connected to a fixing frame (2), the upper surface of the fixing frame (2) is fixedly connected to a first motor (3), the output end of the first motor (3) is fixedly connected to a lead screw (4), the outer surface of the lead screw (4) is threadedly connected to a connecting plate (5), the inner surface of the connecting plate (5) is slidably connected to a first guide rod (6), the upper surface of the fixing frame (2) is fixedly connected to a liquid tank (7), the lower surface of the liquid tank (7) is fixedly connected to a water pump (8), the output end of the water pump (8) is provided with a hose (9), and the end of the hose (9) away from the water pump (8) is fixedly connected to a liquid injection head (10), The inner surface of the liquid tank (7) is slidably connected to a slide bar (11), the lower end of the slide bar (11) is fixedly connected to a float block (12), the upper end of the slide bar (11) is fixedly connected to a fixed block (13), the lower surface of the fixed block (13) is provided with a button switch (14), the upper surface of the liquid injection table (1) is fixedly connected to a placement bin (15), the side surface of the placement bin (15) is fixedly connected to a second motor (16), the output end of the second motor (16) is fixedly connected to a bidirectional lead screw (17), the outer surface of the bidirectional lead screw (17) is threadedly connected to a T-shaped clamping plate (18), and the upper surface of the liquid tank (7) is provided with a buzzer (28); The inner surface of the liquid box (7) is fixedly connected to a liquid adding pipe (19), the inner surface of the liquid box (7) is fixedly connected to a partition plate (20), the upper surface of the liquid box (7) is fixedly connected to a third motor (21), the output end of the third motor (21) is fixedly connected to a reciprocating screw (22), the outer surface of the reciprocating screw (22) is threadedly connected to a fixing plate (23), the inner surface of the fixing plate (23) is slidably connected to a second guide rod (24), the upper surface of the fixing plate (23) is fixedly connected to a fourth motor (25), the output end of the fourth motor (25) is fixedly connected to a rotating shaft (26), and the outer surface of the rotating shaft (26) is fixedly connected to a stirring blade (27).

2. A high-precision liquid injection device for lithium batteries according to claim 1, characterized in that: The outer surface of the connecting plate (5) is slidably connected to the fixing frame (2), the upper end of the first guide rod (6) is fixedly connected to the fixing frame (2), and the lower end of the first guide rod (6) is fixedly connected to the liquid injection platform (1).

3. A high-precision liquid injection device for lithium batteries according to claim 1, characterized in that: The outer surface of the liquid injection head (10) is fixedly connected to the connecting plate (5), and the input end of the water pump (8) extends into the interior of the liquid tank (7).

4. A high-precision liquid injection device for lithium batteries according to claim 1, characterized in that: The outer surface of the sliding rod (11) is slidably connected to the partition (20), and the button switch (14) is electrically connected to the buzzer (28).

5. The high-precision liquid injection equipment for lithium batteries according to claim 1, characterized in that: The number of the T-shaped clamping plates (18) is two and they are distributed on the left and right sides, and the outer surface of the T-shaped clamping plates (18) is slidably connected to the placement bin (15).

6. A high-precision liquid injection device for lithium batteries according to claim 1, characterized in that: The outer surface of the liquid adding pipe (19) is fixedly connected to the partition (20), and the outer surface of the reciprocating screw (22) is rotatably connected to the partition (20).

7. The high-precision liquid injection equipment for lithium batteries according to claim 1, characterized in that: The upper end of the second guide rod (24) is fixedly connected to the liquid box (7), the lower end of the second guide rod (24) is fixedly connected to the partition (20), and the outer surface of the rotating shaft (26) is slidably connected to the partition (20).

8. The high-precision liquid injection equipment for lithium batteries according to claim 1, characterized in that: The first motor (3), the water pump (8), the second motor (16), the third motor (21), and the buzzer (28) are all electrically connected to an external power source.

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