Lithium battery liquid injection machine

By designing a replaceable liquid injection head and automated connection structure, the problem of poor adaptability of existing lithium battery liquid injection machines is solved, and the adaptation and stability and convenience of the liquid injection process for different specifications of lithium batteries are achieved.

CN222915127UActive Publication Date: 2025-05-27SHENZHEN DE LANG NENG HAINENG TECH CO LTD
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Patent Information

Application Number
CN202421718617.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-19
Publication Date
2025-05-27
Estimated Expiration
2034-07-19

AI Technical Summary

Technical Problem

The existing lithium battery liquid injection machine is not convenient to replace the liquid injection head, cannot adapt to different specifications of lithium batteries, and is not very adaptable.

Method used

A lithium battery liquid injection machine is designed. The liquid injection head is easy to replace through the structure of the card block and the card slot, which is suitable for lithium batteries of different specifications. At the same time, through the cooperation of the motor drive threaded rod and slider, the automatic connection and separation of the liquid injection head and the interface is achieved, improving operation convenience and stability.

Benefits of technology

It realizes the rapid replacement of the liquid injection head and the adaptation of lithium batteries of different specifications, improves the adaptability and practicality of the liquid injection machine, and improves the stability and convenience of the liquid injection process through automated operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lithium battery liquid injection machine which belongs to the technical field of lithium battery liquid injection and comprises a liquid injection table and a liquid injection pipe, baffles are arranged on the two sides of the front face of the liquid injection table, a connecting rod is fixedly connected to the top of the liquid injection table, a first supporting rod and a second supporting rod are arranged on the front face of the connecting rod, and a first fixing clamp is arranged on the front face of the first supporting rod. A liquid injection head is movably connected to the bottom of the liquid injection pipe, a connector is formed in the bottom of the liquid injection pipe, clamping grooves are formed in the two sides of the connector, clamping blocks are arranged on the two sides of the upper portion of the liquid injection head, the liquid injection head can be taken out of the connector through the clamping blocks and the clamping grooves, liquid injection heads of other different specifications can be replaced, and adaptability is high; a piston is automatically pushed in a liquid injection pipe through an arranged motor and a threaded rod, liquid is injected into a lithium battery, automatic operation can be achieved, convenience is brought to operation, convenience is brought to fixing work of the lithium battery through an arranged second spring, a first push plate, an electric push rod and a second push plate, and the stability of the lithium battery during liquid injection is improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery liquid injection, and particularly relates to a lithium battery liquid injector. Background Technique

[0002] A lithium battery is a primary battery with a lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. With the continuous development of new energy, the use of lithium batteries has gradually increased. During the production process of batteries, an electrolyte injector is required to inject electrolyte into the battery.

[0003] At present, there are still some defects in the use of existing lithium battery liquid injectors. It is often inconvenient to replace the liquid injection head, and it cannot adapt to lithium batteries of different specifications, and the adaptability is not strong. Therefore, we propose a lithium battery liquid injector. Content of the Utility Model

[0004] The purpose of the utility model is to provide a lithium battery liquid injector to solve the problems of inconvenient replacement of the liquid injection head, inability to adapt to lithium batteries of different specifications, and weak adaptability mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A lithium battery liquid injector, including a liquid injection table and a liquid injection pipe. There are baffles on both sides of the front of the liquid injection table, and the lithium battery is clamped inside the baffles. A connecting rod is fixedly connected to the top of the liquid injection table. There is a first support rod and a second support rod on the front of the connecting rod. The first support rod is fixedly connected to the front of the connecting rod, and the second support rod is movably connected to the front of the connecting rod. There is a first fixing clip on the front of the first support rod, and a second fixing clip on the front of the second support rod. The outside of the liquid injection pipe is clamped inside the first fixing clip, and the piston rod on the liquid injection pipe is clamped inside the second fixing clip. The bottom of the liquid injection pipe is movably connected to a liquid injection head. There is an interface at the bottom of the liquid injection pipe. There are card slots on both sides of the interface, and the card slots extend into the interface. There are blocks on both sides above the liquid injection head, and the blocks are adapted to the card slots, and the blocks are clamped inside the card slots.

[0006] Preferably, there are grooves on both sides of the liquid injection head, and a first spring is arranged inside the grooves. One end of the first spring is fixedly connected inside the grooves, and the other end of the first spring is fixedly connected to one side of the block.

[0007] Preferably, there is a sliding groove on the front of the connecting rod. A sliding block is fixedly connected to the rear of the second support rod. The sliding block is adapted to the sliding groove, and the sliding block is movably connected inside the sliding groove.

[0008] Preferably, a threaded rod is arranged inside the sliding groove. The threaded rod is rotatably connected to the sliding groove. The threaded rod is threadedly connected to the sliding block. There is a motor at one end of the threaded rod.

[0009] Preferably, second springs are provided at one end of each of the two baffles facing each other. The number of the second springs is several, and a first push plate is provided at one end of each of the second springs.

[0010] Preferably, a movable plate is provided at one end of one of the baffles, an electric push rod is provided at one end of the movable plate, and a second push plate is provided at one end of the electric push rod.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. By taking out the clamping block from the clamping groove and then taking out the liquid injection head from the interface, and replacing it with other liquid injection heads of different specifications to adapt to lithium batteries of different specifications, the adaptability is strong, and the practicability is improved.

[0013] 2. By pressing the clamping block, the first spring expands and contracts, enters from the clamping groove into the groove, separates the clamping block from the clamping groove, which brings convenience to the connection and disassembly of the liquid injection head and the interface. By starting the motor, the threaded rod rotates, driving the slider to move inside the sliding groove, and the piston pushes inside the liquid injection pipe to inject liquid into the lithium battery, which can automate the operation and bring convenience to the operation. By providing the second spring, the first push plate, the electric push rod and the second push plate, it brings convenience to the fixing work of the lithium battery and improves the stability during lithium battery liquid injection. Description of the Drawings

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the disassembled structure of the liquid injection head and the liquid injection pipe of the present utility model;

[0016] Figure 3 is a schematic diagram of the clamping block and the groove structure of the present utility model;

[0017] Figure 4 is a schematic diagram of the liquid injection table structure of the present utility model.

[0018] In the figure: 1. Liquid injection table; 2. Liquid injection pipe; 3. Baffle; 4. Connecting rod; 5. First support rod; 6. Second support rod; 7. First fixing clip; 8. Second fixing clip; 9. Liquid injection head; 10. Interface; 11. Clamping block; 12. Clamping groove; 13. Groove; 14. First spring; 15. Sliding groove; 16. Slider; 17. Threaded rod; 18. Motor; 19. Second spring; 20. First push plate; 21. Movable plate; 22. Electric push rod; 23. Second push plate. Detailed Embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-4 , the present invention provides a technical solution for a lithium battery liquid injection machine: including a liquid injection table 1 and a liquid injection pipe 2. On both sides of the front of the liquid injection table 1, there are baffles 3. The lithium battery is clamped inside the baffles 3. A connecting rod 4 is fixedly connected to the top of the liquid injection table 1. On the front of the connecting rod 4, there is a first support rod 5 and a second support rod 6. The first support rod 5 is fixedly connected to the front of the connecting rod 4, and the second support rod 6 is movably connected to the front of the connecting rod 4. On the front of the first support rod 5, there is a first fixing clip 7, and on the front of the second support rod 6, there is a second fixing clip 8. The outside of the liquid injection pipe 2 is clamped inside the first fixing clip 7, and the piston rod on the liquid injection pipe 2 is clamped inside the second fixing clip 8. The bottom of the liquid injection pipe 2 is movably connected to a liquid injection head 9. There is an interface 10 at the bottom of the liquid injection pipe 2. On both sides of the interface 10, there are card slots 11, and the card slots 11 extend into the interface 10. On both sides above the liquid injection head 9, there are clamping blocks 12, and the clamping blocks 12 are adapted to the card slots 11, and the clamping blocks 12 are clamped inside the card slots 11.

[0021] Specifically, there are grooves 13 on both sides of the liquid injection head 9. Inside the grooves 13, there is a first spring 14. One end of the first spring 14 is fixedly connected inside the grooves 13, and the other end of the first spring 14 is fixedly connected to one side of the clamping block 12.

[0022] Specifically, there is a chute 15 on the front of the connecting rod 4. A slider 16 is fixedly connected to the rear of the second support rod 6. The slider 16 is adapted to the chute 15, and the slider 16 is movably connected inside the chute 15.

[0023] Specifically, there is a threaded rod 17 inside the chute 15. The threaded rod 17 is rotatably connected to the chute 15. The threaded rod 17 is threadedly connected to the slider 16, and one end of the threaded rod 17 is provided with a motor 18.

[0024] Specifically, at one end where the two baffles 3 face each other, there are second springs 19. The number of the second springs 19 is several. One end of the second spring 19 is provided with a first push plate 20.

[0025] Specifically, at one end of one baffle 3, there is a movable plate 21. At one end of the movable plate 21, there is an electric push rod 22. At one end of the electric push rod 22, there is a second push plate 23.

[0026] In this implementation scheme, when the liquid injection machine is in use, the lithium battery is placed inside the baffle 3, and the position of the lithium battery is clamped. The liquid injection pipe 2 is clamped inside the first fixing clip 7 and the second fixing clip 8, and the liquid injection head 9 is aligned with the liquid inlet of the lithium battery to carry out the liquid injection work. By taking out the clamping block 11 from the clamping groove 12 and then taking out the liquid injection head 9 from the interface 10, different specifications of liquid injection heads 9 can be replaced to adapt to lithium batteries of different specifications, with strong adaptability and improved practicality.

[0027] By pressing the clamping block 11, the first spring 14 expands and contracts, enters from the clamping groove 12 into the groove 13, and separates the clamping block 11 from the clamping groove 12, which brings convenience to the connection and disassembly of the liquid injection head 9 and the interface 10. By starting the motor 18, the threaded rod 17 rotates, driving the slider 16 to move inside the sliding groove 15, and the piston pushes inside the liquid injection pipe 2 to inject liquid into the lithium battery, which can be automated and brings convenience to the operation. The second spring 19 and the first push plate 20 provided facilitate the left and right fixing of the lithium battery, and the electric push rod 22 and the second push plate 23 provided facilitate the front and back fixing of the lithium battery, improving the stability during the liquid injection of the lithium battery.

[0028] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation. An element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium battery liquid injection machine, comprising a liquid injection platform (1) and a liquid injection pipe (2), characterized in that: Baffles (3) are provided on both sides of the front of the injection platform (1), the lithium battery is clamped inside the baffles (3), a connecting rod (4) is fixedly connected to the top of the injection platform (1), a first support rod (5) and a second support rod (6) are provided on the front of the connecting rod (4), the first support rod (5) is fixedly connected to the front of the connecting rod (4), the second support rod (6) is movably connected to the front of the connecting rod (4), a first fixing clamp (7) is provided on the front of the first support rod (5), a second fixing clamp (8) is provided on the front of the second support rod (6), and the injection tube (2 ) is clamped on the outside of the first fixing clamp (7), the piston rod on the injection tube (2) is clamped on the inside of the second fixing clamp (8), the bottom of the injection tube (2) is movably connected with an injection head (9), the bottom of the injection tube (2) is provided with an interface (10), both sides of the interface (10) are provided with card slots (11), the card slots (11) extend into the inside of the interface (10), and both sides of the upper side of the injection head (9) are provided with card blocks (12), the card blocks (12) are adapted to the card slots (11), and the card blocks (12) are clamped in the inside of the card slots (11).

2. The lithium battery liquid injection machine according to claim 1, characterized in that: Grooves (13) are provided on both sides of the injection head (9), a first spring (14) is provided inside the groove (13), one end of the first spring (14) is fixedly connected inside the groove (13), and the other end of the first spring (14) is fixedly connected to one side of the clamping block (12).

3. The lithium battery liquid injection machine according to claim 1, characterized in that: The front of the connecting rod (4) is provided with a slide groove (15), and the rear of the second support rod (6) is fixedly connected with a slider (16), the slider (16) is adapted to the slide groove (15), and the slider (16) is movably connected inside the slide groove (15).

4. The lithium battery liquid injection machine according to claim 3, characterized in that: A threaded rod (17) is provided inside the slide groove (15), the threaded rod (17) is rotatably connected to the slide groove (15), the threaded rod (17) is connected to the slider (16) via threads, and a motor (18) is provided at one end of the threaded rod (17).

5. The lithium battery liquid injection machine according to claim 1, characterized in that: A second spring (19) is provided at one end of the two baffles (3) facing each other. The number of the second springs (19) is a plurality, and a first push plate (20) is provided at one end of the second spring (19).

6. The lithium battery liquid injection machine according to claim 1, characterized in that: A movable plate (21) is provided at one end of the baffle (3), an electric push rod (22) is provided at one end of the movable plate (21), and a second push plate (23) is provided at one end of the electric push rod (22).