A cleaning device for a battery electrolyte injection container

Abstract

The utility model discloses a kind of cleaning device for battery liquid injection container, including being located at the spray mechanism of the opening of sleeve cup upper and the negative pressure mechanism located at sleeve cup bottom;Wherein, the spray mechanism includes spray head, connecting arm of connecting spray head;The negative pressure mechanism includes vacuum pump, pipeline of connecting the vacuum pump. Through the spray head of specific design realizes no dead angle, high coverage's rotary spray, can efficiently dissolve and remove stubborn electrolyte crystal adhered in the inner wall of sleeve cup;At the same time, using the negative pressure generated by vacuum pump, residual liquid after cleaning is quickly and completely pumped away from the bottom of sleeve cup, effectively solve the key problems of not completely cleaned, residual liquid retention and improper handling etc. existing in traditional cleaning mode.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production equipment technology, and in particular to a cleaning device for battery electrolyte filling containers. Background Technology

[0002] In the field of lithium battery manufacturing, the electrolyte filling process is a critical step that determines battery performance and safety. In this process, electrolyte filling cups are widely used as temporary buffer containers for the electrolyte. However, components such as lithium salts in the electrolyte readily crystallize upon contact with air and firmly adhere to the inner wall of the filling cup.

[0003] Currently, cleaning of injection cups generally relies on manual methods or simple soaking and rinsing. These traditional methods have the following significant drawbacks: 1. Poor cleaning effect: It is difficult to effectively remove tightly attached electrolyte crystals, especially in areas such as the bottom corners of the cup and complex curved surfaces, which easily form cleaning dead zones. Residual crystals will become a source of contamination, affecting the purity of electrolyte in subsequent batches, ultimately leading to poor consistency of battery products, high self-discharge rate, and even safety hazards.

[0004] 2. Difficulty in residual liquid treatment: After cleaning, a large amount of waste liquid containing high concentrations of electrolyte remains inside the cup. Current methods mostly rely on gravity discharge or simple dumping, which are slow and incomplete. This not only causes harmful residual liquid to remain and evaporate in the equipment pipelines, polluting the workshop environment, but also increases the difficulty and cost of subsequent waste liquid collection and treatment, failing to meet the requirements of green production. Utility Model Content

[0005] The purpose of this invention is to provide a cleaning device for battery filling containers. Through an optimized spraying and vacuuming system, the cleaning cleanliness and production efficiency of lithium battery filling cups are significantly improved, while ensuring battery quality and environmental safety.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A cleaning device for a battery electrolyte filling container includes a spray mechanism with an opening at the top of a sleeve cup and a negative pressure mechanism at the bottom of the sleeve cup; wherein, The spraying mechanism includes a nozzle and a connecting arm that connects to the nozzle. The negative pressure mechanism includes a vacuum pump and a pipe connected to the vacuum pump.

[0007] A further embodiment: The nozzle has a spherical crown-shaped structure, and its surface is uniformly provided with multiple spray holes.

[0008] A further embodiment: the vacuum pump is connected to the bottom of the sleeve cup via a seal; the seal includes a threaded sleeve and a sealing ring.

[0009] Further options include waste liquid tanks for holding waste liquid.

[0010] A further solution: the waste liquid tank is made of a transparent material.

[0011] A further embodiment: The connecting arm is connected to a drive mechanism for driving the nozzle to move in a directional manner.

[0012] A further solution: The nozzle is equipped with rotatable guide vanes.

[0013] A further embodiment: the nozzles are evenly distributed at the top of the spherical crown of the nozzle.

[0014] A further option: the inner diameter of the nozzle is 0.5-1mm.

[0015] A further option: the pipe is a flexible hose.

[0016] Compared with the prior art, the beneficial effects of this utility model are: This invention provides a cleaning device for battery electrolyte filling containers, whose core technological innovation lies in combining active spray cleaning with negative pressure suction drainage. The device achieves comprehensive, high-coverage rotating spraying through a specially designed nozzle, efficiently dissolving and removing stubborn electrolyte crystals adhering to the inner wall of the cup. Simultaneously, the negative pressure generated by a vacuum pump rapidly and completely removes the residual liquid from the bottom of the cup after cleaning, effectively solving the problems of incomplete cleaning, residual liquid retention, and improper handling inherent in traditional cleaning methods.

[0017] The successful implementation of this device has brought multiple beneficial effects. In terms of quality and efficiency, it not only significantly improves the cleanliness of the battery cups, fundamentally preventing battery contamination caused by inadequate cleaning and ensuring the consistency and safety of battery products, but also automates the cleaning process, greatly reducing manual labor intensity and increasing production efficiency. In terms of environmental protection and practicality, its closed-loop residual liquid collection system prevents the volatilization and leakage of harmful chemicals, complying with green production standards. Furthermore, the entire device has a stable structure, is easy to maintain, and possesses good industrial application value and promising prospects for widespread adoption. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; In the diagram: 1-Cup, 2-Spraying mechanism, 21-Spray head, 211-Spray hole, 22-Connecting arm, 3-Negative pressure mechanism, 31-Pipeline, 32-Seal, 4-Waste liquid tank. Detailed Implementation

[0019] 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.

[0020] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Please see Figure 1 This embodiment discloses a cleaning device for a battery electrolyte filling container, including a spray mechanism 2 with an opening at the top of a sleeve cup 1 and a negative pressure mechanism 3 at the bottom of the sleeve cup 1. The spray mechanism 2 includes a nozzle 21 and a connecting arm 22 connecting the nozzle 21; the negative pressure mechanism 3 includes a vacuum pump and a pipe 31 connecting the vacuum pump. This device actively cleans the inner wall of the sleeve cup 1 through the spray mechanism 2, while simultaneously using the negative pressure mechanism 3 to actively extract residual liquid, thus achieving automation, high efficiency, and thoroughness in the cleaning and drainage process. This fundamentally solves the problems of low efficiency, poor results, and improper residual liquid disposal inherent in traditional manual cleaning.

[0022] Furthermore, the nozzle 21 has a spherical crown-shaped structure with multiple spray holes 211 evenly distributed on its surface. The spherical crown-shaped structure of the nozzle 21 and the evenly distributed spray holes 211 on its surface can form a wide and uniform cleaning liquid curtain, ensuring that the cleaning liquid can simultaneously cover the side wall and bottom of the cup 1, effectively eliminating cleaning dead corners and improving the cleaning effect. Figure 1 In the process, the spraying mechanism has been enlarged. The actual diameter of the nozzle 21 is smaller than the diameter of the round hole on the upper cover of the cup 1, and there is space to avoid it. During cleaning, the nozzle 21 penetrates into the cup 1 to spray at multiple angles.

[0023] Furthermore, the vacuum pump is connected to the bottom of the sleeve cup 1 via a seal 32; the seal 32 includes a threaded sleeve and a sealing ring. The connection via the seal 32, consisting of the threaded sleeve and the sealing ring, ensures the reliability of the seal at the connection between the vacuum pump and the bottom of the sleeve cup 1, effectively preventing air leakage during negative pressure extraction, ensuring the stability of the negative pressure suction force, and thus ensuring that residual liquid can be quickly and completely discharged.

[0024] Furthermore, it also includes a waste liquid tank 4 for holding waste liquid. The dedicated waste liquid tank 4 allows for the centralized collection and storage of harmful waste liquid generated during cleaning, avoiding environmental pollution caused by indiscriminate discharge of waste liquid, and facilitating subsequent unified environmental protection treatment, thus meeting the requirements of green production.

[0025] Furthermore, waste liquid tank 4 is made of transparent material. The transparent material of waste liquid tank 4 allows operators to directly and quickly observe changes in the liquid level inside the tank, facilitating real-time monitoring of the cleaning process and timely arrangement of waste liquid transfer, preventing the risk of overflow caused by overfilling.

[0026] Furthermore, the connecting arm 22 is connected to a drive mechanism for directional movement of the nozzle 21. The drive mechanism enables the nozzle 21 to move directionally, thereby allowing for flexible and precise adjustment of the nozzle 21's spatial position and spray angle within the sleeve cup 1. This greatly enhances the device's adaptability to sleeve cups 1 of different sizes and structures, ensuring optimal cleaning results for various complex internal cavity structures.

[0027] Furthermore, the nozzle 21 is equipped with rotatable guide vanes. The guide vanes are rotated by the power of the cleaning fluid flow itself, preventing the cleaning fluid from clogging the nozzle 211.

[0028] Furthermore, the nozzles 211 are evenly distributed on the top of the spherical crown of the nozzle 21. By specifically setting the nozzles 211 on the top of the spherical crown of the nozzle 21, the cleaning liquid is prevented from splashing in all directions, so that the cleaning liquid flow can more concentratedly impact the central area at the bottom of the cup 1. This area is usually the part where the electrolyte crystals are thickest and the most difficult to clean. This design can significantly enhance the cleaning power and effect in this key area.

[0029] Furthermore, the inner diameter of the nozzle 211 is 0.5-1 mm. Limiting the inner diameter of the nozzle 211 to the range of 0.5-1 mm can generate a cleaning fluid flow with high impact force while ensuring sufficient cleaning coverage. This fine and powerful spray pattern is particularly effective in dissolving and rinsing off attached electrolyte crystals.

[0030] Furthermore, pipe 31 is a flexible hose. The use of a flexible hose in pipe 31 gives the piping system good flexibility, facilitates wiring and connection inside the equipment, can adapt to the position adjustment of the spray mechanism 2 or the sleeve cup 1, effectively reduces the impact of equipment vibration on the stability of the piping system, and also reduces the difficulty of installation and maintenance.

[0031] In operation, this invention first checks the connection status of the spray mechanism 2, pipe 31, and negative pressure mechanism 3 to ensure good sealing. Sufficient DMC cleaning agent is added to the system. Based on the degree of contamination of the sleeve cup 1, the cleaning time, spray pressure of the nozzle 21, DMC dosage, and working negative pressure parameters of the vacuum pump are set in the control system. The device is then started. The spray mechanism 2 begins operation, with the nozzle 21 rotating inside the sleeve cup 1, uniformly spraying the DMC cleaning agent onto the entire inner wall through the spray holes 211 to dissolve electrolyte crystals. Simultaneously, the negative pressure mechanism 3 starts operation, and the vacuum pump creates a vacuum within the pipe 31. Under the combined action of negative pressure suction and gravity, the flushed residual liquid quickly enters the pipe 31 through the bottom outlet of the sleeve cup 1 and is finally discharged into the waste liquid tank 4 for centralized collection. The operator observes the spray status of the nozzle 21 and the liquid level changes in the waste liquid tank 4 through the monitoring system to ensure normal equipment operation. After the set cleaning time is reached, the spray mechanism 2 and negative pressure mechanism 3 automatically stop. Regularly clean the nozzle 21 and connecting arm 22, check whether the pipeline 31 is unobstructed, maintain the operating status of the vacuum pump, and clean the waste liquid tank 4 in a timely manner to ensure that the equipment is in good standby condition.

[0032] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0033] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A cleaning device for battery electrolyte filling containers, characterized in that, It includes a spray mechanism (2) with an opening at the top of the sleeve cup (1) and a negative pressure mechanism (3) at the bottom of the sleeve cup (1); wherein, The spraying mechanism (2) includes a nozzle (21) and a connecting arm (22) that connects to the nozzle (21); The negative pressure mechanism (3) includes a vacuum pump and a pipe (31) connected to the vacuum pump.

2. The cleaning device for a battery electrolyte filling container according to claim 1, characterized in that, The nozzle (21) has a spherical crown-shaped structure, and its surface is uniformly provided with multiple nozzle holes (211).

3. The cleaning device for a battery electrolyte filling container according to claim 1, characterized in that, The vacuum pump is connected to the bottom of the sleeve cup (1) via a seal (32); the seal (32) includes a threaded sleeve and a sealing ring.

4. The cleaning device for a battery electrolyte filling container according to claim 1, characterized in that, It also includes a waste liquid tank (4) for holding waste liquid.

5. The cleaning device for a battery electrolyte filling container according to claim 4, characterized in that, The waste liquid tank (4) is made of transparent material.

6. The cleaning device for a battery electrolyte filling container according to claim 1, characterized in that, The connecting arm (22) is connected to a drive mechanism for driving the nozzle (21) to move in a specific direction.

7. The cleaning device for a battery electrolyte filling container according to claim 1, characterized in that, The nozzle (21) has rotatable guide vanes inside.

8. The cleaning device for a battery electrolyte filling container according to claim 2, characterized in that, The nozzles (211) are evenly distributed on the top of the spherical crown of the nozzle (21).

9. The cleaning device for a battery electrolyte filling container according to claim 2, characterized in that, The inner diameter of the nozzle (211) is 0.5-1mm.

10. The cleaning device for a battery electrolyte filling container according to claim 1, characterized in that, The pipe (31) is a flexible hose.

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