Liquid injection device for lithium battery production

By designing a robust clamping mechanism and a hydraulically driven lithium battery fixing device, the problem of displacement during lithium battery injection was solved, ensuring the accuracy and efficiency of injection.

CN224110447UActive Publication Date: 2026-04-10SHENZHEN EXCELLENT BATTERY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN EXCELLENT BATTERY TECH CO LTD
Filing Date
2025-02-06
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Lithium batteries are prone to displacement during the electrolyte filling process due to lack of fixation, resulting in electrolyte waste and low working efficiency.

Method used

A liquid injection device for lithium battery production was designed, comprising a base plate, conveyor belt, support, hydraulic rod, moving plate, fixed shell, and clamping components. The clamping components are driven by the hydraulic rod to fix the lithium battery, ensuring that it does not shift or shake during the liquid injection process. A transparent plate is also provided for observing the liquid level.

Benefits of technology

It achieves stable clamping of lithium batteries during the electrolyte injection process, preventing electrolyte splashing or leakage, reducing waste, and improving work efficiency and injection accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of lithium battery production, in particular to a liquid injection device for lithium battery production, which comprises a bottom plate and a conveying belt, the conveying belt is arranged above the bottom plate, a support is arranged above the bottom plate, a first hydraulic rod is arranged below the support, a movable plate is arranged at one end of the first hydraulic rod, and a fixed shell is arranged below the movable plate. According to the liquid injection device for lithium battery production, the stable clamping mechanism can ensure that a lithium battery does not shift or shake in the liquid injection process, so that the electrolyte is prevented from splashing or leaking due to the change of the position of the battery, the waste of the electrolyte is reduced, accurate butt joint of the battery and liquid injection equipment can be ensured through accurate clamping, and the production efficiency is improved. And the liquid level condition in the liquid supply box can be observed through the visible transparent plate, and raw materials can be conveniently supplemented into the liquid supply box in time.
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Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery production technical field, concretely is a kind of liquid injection device for lithium battery production. BACKGROUND

[0002] The liquid injection device for lithium battery production is a mechanical equipment specially used in the liquid injection link in the lithium battery production process, and its core function is to accurately inject electrolyte into the lithium battery, which is a key step in the lithium battery manufacturing process.

[0003] Some devices in the process of injecting liquid into lithium battery, lithium battery is easily offset after being conveyed to the downside of liquid injection device by conveying belt, if lithium battery cannot be well fixed, it will lead to the situation that lithium battery is easily displaced in the process of injecting liquid, so that electrolyte falls to the ground to cause waste, and manual righting of lithium battery is needed to carry out liquid injection process again, and the working efficiency is low.

[0004] Therefore, we propose a liquid injection device for lithium battery production. INVENTION CONTENTS

[0005] One of the technical problems to be solved by the present application is that if lithium battery cannot be well fixed, it will lead to the situation that lithium battery is easily displaced in the process of injecting liquid.

[0006] To solve the above technical problems, the present application provides a liquid injection device for lithium battery production, which comprises a bottom plate, a conveying belt, a bracket, a hydraulic rod one, a moving plate, a fixed shell, a clamping piece and a driving motor.

[0007] In some embodiments, a driving motor is arranged above the moving plate, a hydraulic rod two is arranged inside the fixed shell through the moving plate and the fixed shell, and the other end of the hydraulic rod two is connected above the clamping piece.

[0008] In some embodiments, a square fixing groove is formed in one side of the fixed shell, a fixed block is arranged inside one side of the fixed shell, and a recess is formed in the fixed block.

[0009] In some embodiments, the clamping piece comprises a pushing plate, the pushing plate is arranged below the hydraulic rod two, a sliding block is arranged outside the pushing plate, a connecting rod one is arranged on one side of the sliding block, the other end of the connecting rod is connected to the inner wall of the fixed groove, a connecting rod two is arranged on the other side of the sliding block, a clamping plate is arranged inside the recess, and the other end of the connecting rod two is connected to one side of the clamping plate.

[0010] In some embodiments, a storage box is arranged above the support, a visible transparent plate is arranged on one side of the storage box, and a spring pipe is arranged below the storage box, and the spring pipe is provided with a syringe pipe through the moving plate.

[0011] In some embodiments, the sliding block is designed to be hollow and can slide outside the push plate.

[0012] In some embodiments, the clamping plate is designed as a "5" shape, and one end of the clamping plate is provided with a rectangular plate.

[0013] The utility model at least has the following beneficial effects:

[0014] The stable clamping mechanism can ensure that the lithium battery does not shift or shake during the liquid injection process, thereby avoiding the splashing or leakage of electrolyte due to the change of the battery position, reducing the waste of electrolyte, and the accurate clamping can ensure the accurate docking of the battery and the liquid injection equipment, the visible transparent plate can realize the observation of the liquid level in the liquid supply tank, and the internal raw material of the liquid supply tank can be supplemented in time. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Fig. 2 It is a schematic diagram of the clamping piece structure of the utility model;

[0017] Fig. 3 It is a schematic diagram of the enlarged structure of area A of the utility model;

[0018] Fig. 4 It is a schematic diagram of the front view structure of the utility model;

[0019] Fig. 5 It is a schematic diagram of the internal structure of the fixed shell of the utility model;

[0020] Fig. 6 It is a schematic diagram of the rear view structure of the utility model.

[0021] In the figure: 1 - bottom plate; 2 - conveying belt; 3 - support; 4 - storage box; 5 - moving plate; 6 - fixed shell; 7 - fixed groove; 8 - groove; 9 - clamping piece; 91 - push plate; 92 - sliding block; 93 - connecting rod one; 94 - connecting rod two; 95 - clamping plate; 10 - fixed block; 11 - hydraulic rod one; 12 - spring pipe; 13 - syringe pipe; 14 - visible transparent plate; 15 - drive motor; 16 - hydraulic rod two. DETAILED DESCRIPTION

[0022] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0023] Embodiment 1: Please refer to Figs. 1-6 The utility model provides a technical scheme: a kind of liquid injection device for lithium battery production, including bottom plate 1, still including conveyer belt 2, conveyer belt 2 is set in bottom plate 1 top, bottom plate 1 top is provided with support 3, support 3 below is provided with hydraulic rod one 11, one end of hydraulic rod one 11 is provided with moving plate 5, moving plate 5 below is provided with fixed shell 6, fixed shell 6 inside is provided with clamping piece 9.

[0024] Firstly, lithium battery is placed to conveyer belt 2, then it is moved downward by being set clamping piece 9, the clamping of lithium battery is fixed, then liquid injection is carried out to lithium battery, and the stable clamping mechanism can ensure that lithium battery does not shift or shake during liquid injection process, so as to avoid that electrolyte splashes or leaks due to battery position change, and reduce the waste of electrolyte.

[0025] Driving motor 15 is set in moving plate 5 top, and hydraulic rod two 16 is set in fixed shell 6 inside, and driving motor 15 passes through moving plate 5 and fixed shell 6, and the other end of hydraulic rod two 16 is connected above clamping piece 9.

[0026] Driving motor 15 works, and hydraulic rod two 16 is extruded to push plate 91 downward, so as to drive the clamping work of clamping piece 9, and the stable clamping mechanism can ensure that lithium battery does not shift or shake during liquid injection process, so as to avoid that electrolyte splashes or leaks due to battery position change.

[0027] Square fixed groove 7 is formed in one side of fixed shell 6, fixed block 10 is set in one side of fixed shell 6 inside, and recess 8 is formed in fixed block 10.

[0028] Fixed groove 7 is formed in one side of fixed shell 6, which is convenient for fixing connecting rod one 93, and recess 8 is formed, which is convenient for the movement of clamping plate 95 in fixed block 10, so that the clamping of clamping plate 95 is more smooth, and the possibility of jamming is reduced.

[0029] The clamping piece 9 comprises a pushing plate 91 arranged below the hydraulic rod 2, a sliding block 92 arranged outside the pushing plate 91, a connecting rod 1 93 arranged on one side of the sliding block 92, the other end of the connecting rod 1 93 being connected to the inner wall of the fixed groove 7, a connecting rod 2 94 arranged on the other side of the sliding block 92, a clamping plate 95 arranged inside the groove 8, and the other end of the connecting rod 2 94 being connected to one side of the clamping plate 95.

[0030] When the hydraulic rod 2 moves downward, the pushing plate 91 is pushed, and the sliding block 92 on the pushing plate 91 extrudes the connecting rod 1 93 and the connecting rod 2 94, so that the connecting rod 1 93 and the connecting rod 2 94 are folded, and the sliding block 92 is moved inward. Since one end of the connecting rod 2 94 is connected to one side of the clamping plate 95, the folding of the connecting rod 2 94 pushes the movement of the clamping plate 95, thereby clamping and fixing the lithium battery. The stable clamping mechanism can ensure that the lithium battery does not shift or shake during the liquid injection process, thereby avoiding the splashing or leakage of the electrolyte due to the change of the battery position.

[0031] The bracket 3 is provided with a storage box 4, one side of the storage box 4 is provided with a visible transparent plate 14, and the storage box 4 is provided below with a spring pipe 12, and the spring pipe 12 is provided with a syringe 13 through the moving plate 5.

[0032] The storage box 4 is arranged to store the required liquid, and the visible transparent plate 14 can realize the observation of the liquid level in the liquid supply tank, so as to conveniently supplement the raw materials in the liquid supply tank in time. The spring pipe 12 arranged can be stretched with the movement of the hydraulic rod 1 1, so as to facilitate the injection of the liquid into the lithium battery by the syringe 13.

[0033] Embodiment 2: please refer to Figs. 1-6 On the basis of embodiment 1, the sliding block 92 is designed to be hollow and can slide outside the pushing plate 91.

[0034] The fixed block 10 is uniformly arranged on the pushing plate 91 when the pushing plate 91 is pressed downward, and the hollow design of the sliding block 92 makes the sliding more smooth.

[0035] The clamping plate 95 is arranged in the shape of "5", and one end of the clamping plate 95 is arranged with a rectangular plate.

[0036] The longer plate arranged at one end of the clamping plate 95 makes the clamping area larger, so as to facilitate the clamping of the lithium battery.

[0037] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0038] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A liquid injection device for lithium battery production, comprising a base plate (1), characterized in that: Also include the conveyor belt (2), the conveyor belt (2) is arranged above the bottom plate (1), the bottom plate (1) is provided with a support (3), the support (3) is provided with a hydraulic rod one (11) below, one end of the hydraulic rod one (11) is provided with a moving plate (5), the moving plate (5) is provided with a fixed shell (6) below, the fixed shell (6) is provided with a clamping piece (9) inside.

2. The liquid injection device for lithium battery production according to claim 1, characterized in that: The moving plate (5) is provided with a drive motor (15) above, the drive motor (15) passes through the moving plate (5) and the fixed shell (6) and is provided with a hydraulic rod two (16) inside the fixed shell (6), the other end of the hydraulic rod two (16) is connected above the clamping piece (9).

3. The liquid injection device for lithium battery production according to claim 2, characterized in that: The fixed shell (6) is provided with a square fixed groove (7) on one side, the fixed shell (6) is provided with a fixed block (10) inside one side, the fixed block (10) is provided with a recess (8).

4. The liquid injection device for lithium battery production according to claim 3, characterized in that: The clamping piece (9) includes a push plate (91), the push plate (91) is arranged below the hydraulic rod two (16), the push plate (91) is provided with a sliding block (92) outside, the sliding block (92) is provided with a connecting rod one (93) on one side, the other end of the connecting rod is connected in the inner wall of the fixed groove (7), the sliding block (92) is provided with a connecting rod two (94) on the other side, the recess (8) is provided with a clamping plate (95) inside, the other end of the connecting rod two (94) is connected on one side of the clamping plate (95).

5. The liquid injection device for lithium battery production according to claim 1, characterized in that: The support (3) is provided with a storage box (4) above, the storage box (4) is provided with a visual transparent plate (14) on one side, the storage box (4) is provided with a spring tube (12) below, the spring tube (12) is provided with a syringe (13) through the moving plate (5).

6. The liquid injection device for lithium battery production according to claim 4, characterized in that: The sliding block (92) is designed to be hollow and can slide outside the push plate (91). 7.The liquid injection device for lithium battery production according to claim 4, characterized in that: The clamping plate (95) is provided with a rectangular plate material on one end of the clamping.