Negative pressure assembly cleaning tool for battery formation

Abstract

The utility model relates to a negative pressure assembly cleaning tool for battery formation, and belongs to the technical field of battery manufacturing, the negative pressure assembly cleaning tool comprises a fixing unit, the fixing unit comprises a frame body and a cover plate mounted at a top opening of the frame body, and the cover plate is provided with a suction nozzle butt joint flange used for being in butt joint with a negative pressure assembly; the liquid supply unit is arranged in the frame body, communicates with the suction nozzle butt joint flange and is used for guiding cleaning liquid into the negative pressure assembly; and the ultrasonic cleaning unit comprises an ultrasonic generator arranged in the frame body and an ultrasonic transducer arranged on the cover plate and connected with the ultrasonic generator. According to the cleaning tool, the liquid supply unit is used for repeatedly flushing the negative pressure assembly, meanwhile, the ultrasonic transducer can be used for transmitting ultrasonic waves into the cleaning liquid, so that the cleaning liquid vibrates and cleans the negative pressure assembly under the ultrasonic frequency, and therefore the cleaning efficiency of the negative pressure assembly is further improved; and the device can be widely applied to the technical field of battery manufacturing.

Description

Technical Field

[0001] The present application relates to the field of battery manufacturing technology, and in particular to a negative pressure component cleaning tool for battery formation. Background Art

[0002] During the production process of battery cells, formation equipment is needed to batch-form the battery cells to activate the battery cells. In order to promptly and effectively discharge the gases generated by the battery cells during the formation process, the existing formation equipment is designed with an independent negative pressure system. The negative pressure pipeline of the negative pressure system is connected to the injection hole of the lithium battery through a suction nozzle made of materials such as EPDM rubber to form an air path. This isolates the inside of the battery cell from the outside air during the formation process, and at the same time effectively and promptly discharges the gases generated inside the battery cell during the formation process.

[0003] During the formation process, a negative pressure component with a negative pressure cup and a suction nozzle is required to extract and collect gas. However, the gas sucked by the negative pressure may be mixed with electrolyte. After long-term use, the electrolyte remaining in the negative pressure component is prone to form crystals, which in turn causes the flow of the negative pressure component to become smaller or even blocked. Therefore, the negative pressure component needs to be cleaned regularly.

[0004] Cleaning the negative pressure components of formation equipment traditionally involves manual disassembly and cleaning. However, this method has the following drawbacks: the disassembly and installation process is cumbersome and time-consuming, and manual installation is required after cleaning, which is prone to human error, resulting in improper installation or loose gas line connectors, causing accidents such as collisions and leaks. Furthermore, due to the height of formation equipment, manual disassembly and installation pose the risk of working at height. Furthermore, existing automated cleaning tooling technology is not ideal, relying solely on repeated flushing with a DMC negative pressure cup, which is ineffective in removing thicker crystals.

[0005] Therefore, how to provide a negative pressure component cleaning tool for battery formation to improve the efficiency and safety of formation equipment cleaning has become a technical problem to be solved. Summary of the Invention

[0006] In response to the deficiencies or one of the deficiencies in the above technical problems, the embodiments of the present application provide a negative pressure component cleaning tool for battery formation, so as to further improve the efficiency and safety of cleaning of formation equipment.

[0007] The present application provides a negative pressure cleaning tool for battery formation, comprising:

[0008] A fixing unit, comprising a frame and a cover plate mounted at the top opening of the frame, wherein the cover plate is provided with a nozzle docking flange for docking with the negative pressure assembly;

[0009] A liquid supply unit is provided in the frame and is in communication with the nozzle docking flange, and is used to introduce cleaning liquid into the negative pressure assembly;

[0010] The ultrasonic cleaning unit comprises an ultrasonic generator arranged in the frame, and an ultrasonic transducer arranged on the cover and connected to the ultrasonic generator.

[0011] In some embodiments, the nozzle docking flange is provided with a mounting hole for installing a fastener, and a docking groove for matching with a negative pressure component, and a liquid guide port for communicating with the liquid supply unit is provided in the docking groove.

[0012] In some embodiments, the liquid supply unit includes a liquid storage cup disposed in the frame, and a liquid guide tube connected to the nozzle docking flange and having one end extending into the liquid storage cup.

[0013] In some embodiments, an air inlet connected to the outside world or an air source is provided on the side wall of the liquid storage cup, and the air inlet is higher than the bottom end of the liquid guiding tube.

[0014] In some embodiments, the liquid supply unit further includes a manifold and a plurality of branch pipes for conveying the cleaning liquid. There are multiple liquid storage cups, and each of the liquid storage cups is connected to the manifold via a branch pipe.

[0015] In some embodiments, the liquid supply unit further includes a liquid storage tank for storing cleaning liquid, the liquid storage tank is connected to the manifold via a pipeline, and a power component for providing power for the flow of cleaning liquid in the pipeline is provided between the liquid storage tank and the manifold.

[0016] In some embodiments, the pipeline includes a first pipeline connected to the manifold, the power component is arranged on the first pipeline, and a second pipeline for injecting liquid into the liquid storage cup and a third pipeline for draining liquid into the liquid storage tank are connected between the first pipeline and the liquid storage tank.

[0017] In some embodiments, the liquid supply unit further includes a filter component, and the filter component is disposed on the second pipeline, or the filter component is disposed in the liquid storage tank.

[0018] In some embodiments, the first pipeline is connected to the second pipeline and the third pipeline respectively through a three-way joint, a first one-way valve is provided on the second pipeline, and a second one-way valve is provided on the third pipeline.

[0019] In some embodiments, the first pipeline is connected to the second pipeline and the third pipeline respectively through a three-way valve.

[0020] The beneficial effects of the technical solution provided by this application include:

[0021] An embodiment of the present application provides a cleaning tool for a negative pressure component for battery formation. Since the fixing unit includes a frame and a cover installed at the top opening of the frame, a nozzle docking flange for docking with the negative pressure component is provided on the cover; the liquid supply unit is arranged in the frame and connected to the nozzle docking flange, and is used to introduce cleaning liquid into the negative pressure component; the ultrasonic cleaning unit includes an ultrasonic generator arranged in the frame, and an ultrasonic transducer arranged on the cover and connected to the ultrasonic generator.

[0022] Therefore, while using the liquid supply unit to repeatedly rinse the negative pressure component connected to the suction nozzle docking flange, the ultrasonic generator can be used to provide ultrasonic energy to the ultrasonic transducer, so that the ultrasonic transducer on the cover plate transmits the ultrasonic wave to the cleaning liquid, causing the cleaning liquid to vibrate at the ultrasonic frequency to clean the negative pressure component, thereby further improving the efficiency of cleaning the negative pressure component. The cleaning tooling of the present application can replace manual cleaning, reduce work intensity, improve safety, and can be widely used in the field of battery manufacturing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 This is a schematic structural diagram of a cleaning tool according to an embodiment of the present application;

[0025] Figure 2 A schematic diagram of the distribution of ultrasonic transducers according to an embodiment of the present application;

[0026] Figure 3 This is a schematic structural diagram of the nozzle docking flange of an embodiment of the present application;

[0027] Figure 4 This is a schematic diagram of the principle of the cleaning tooling of an embodiment of the present application.

[0028] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0029] 1. Frame; 2. Cover; 3. Suction nozzle docking flange; 31. Mounting hole; 32. Docking groove; 33. Liquid guide port; 4. Ultrasonic generator; 5. Ultrasonic transducer; 6. Liquid storage cup; 7. Liquid guide tube; 8. Manifold; 9. Diverter tube; 10. Liquid storage tank; 11. Power component; 12. First pipeline; 13. Second pipeline; 14. Third pipeline; 15. Three-way connector; 16. First one-way valve; 17. Second one-way valve; 18. Negative pressure suction nozzle; 19. Negative pressure cup; 20. Negative pressure power source. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0031] In response to the deficiencies or one of the deficiencies in the above technical problems, the embodiments of the present application provide a negative pressure component cleaning tool for battery formation, so as to further improve the efficiency and safety of cleaning of formation equipment.

[0032] See also Figures 1 to 4 As shown, the embodiment of the present application provides a negative pressure component cleaning tool for battery formation, including:

[0033] The fixing unit includes a frame 1 and a cover plate 2 installed at the top opening of the frame 1, and a nozzle docking flange 3 for docking with the negative pressure component is provided on the cover plate 2;

[0034] A liquid supply unit is provided in the frame 1 and is in communication with the nozzle docking flange 3, and is used to introduce cleaning liquid into the negative pressure assembly;

[0035] The ultrasonic cleaning unit includes an ultrasonic generator 4 arranged in a frame 1 , and an ultrasonic transducer 5 arranged on a cover plate 2 and connected to the ultrasonic generator 4 .

[0036] The battery formation negative pressure component cleaning tooling of the embodiment of the present application is provided with a fixing unit, which includes a frame 1 and a cover plate 2 installed at the top opening of the frame 1. The negative pressure component includes a negative pressure cup 19 connected to the negative pressure pipeline and a negative pressure suction nozzle 18 connected to the negative pressure cup 19. The suction nozzle docking flange 3 installed on the cover plate 2 can dock and position the negative pressure suction nozzle 18.

[0037] While the liquid supply unit is used to repeatedly rinse the negative pressure component connected to the nozzle docking flange 3, the ultrasonic generator 4 can be used to provide ultrasonic energy to the ultrasonic transducer 5, so that the ultrasonic transducer 5 on the cover plate 2 transmits ultrasonic waves to the cleaning liquid, causing the cleaning liquid to vibrate at the ultrasonic frequency to clean the negative pressure component.

[0038] This further improves the efficiency of cleaning negative pressure components. The cleaning tooling of the present application can replace manual cleaning, reduce work intensity, improve safety, and can be widely used in the field of battery manufacturing technology.

[0039] In some alternative embodiments: See Figure 3As shown, an embodiment of the present application provides a battery formation negative pressure component cleaning tool, and the suction nozzle docking flange 3 of the battery formation negative pressure component cleaning tool is provided with a mounting hole 31 for installing a fastener, and a docking groove 32 for matching the negative pressure component, and a liquid guide port 33 for connecting to the liquid supply unit is provided in the docking groove 32.

[0040] The nozzle docking flange 3 of the embodiment of the present application is provided with a mounting hole 31, which can be conveniently fixed to the cover plate 2 by fasteners. The nozzle docking flange 3 is also provided with a docking groove 32, which is used to abut the negative pressure nozzle 18 on the negative pressure component, so that the cleaning liquid can flow into and out of the negative pressure component through the liquid guide port 33 in the docking groove 32.

[0041] It should be noted that the setting of the suction nozzle docking flange 3 makes it unnecessary to remove the negative pressure components one by one. Instead, the cleaning tool is moved to the bottom of the negative pressure component of the chemical formation equipment. After the negative pressure suction nozzle 18 is docked with the suction nozzle docking flange 3, the cleaning operation can be started. This can eliminate the operation of disassembling the negative pressure component, reduce work intensity, replace manual cleaning, improve efficiency, and avoid damaging the assembly accuracy of the negative pressure component and affecting the air tightness of the negative pressure component.

[0042] In some alternative embodiments: See Figure 4 As shown, an embodiment of the present application provides a battery formation negative pressure component cleaning tool, the liquid supply unit of the battery formation negative pressure component cleaning tool includes a liquid storage cup 6 arranged in a frame 1, and a liquid guide tube 7 connected to the suction nozzle docking flange 3 and one end extending into the liquid storage cup 6.

[0043] The liquid supply unit of the present embodiment includes a liquid storage cup 6 fixedly mounted within the frame 1 and a liquid guide tube 7 fixedly mounted on the cover plate 2. The top end of the liquid guide tube 7 is connected to the nozzle docking flange 3, and the bottom end extends into the liquid storage cup 6. During use, the liquid storage cup 6 is pre-filled with an appropriate amount of cleaning liquid so that the liquid level of the cleaning liquid is higher than the bottom end of the liquid guide tube 7. After the negative pressure nozzle 18 on the negative pressure assembly is docked with the nozzle docking flange 3, the negative pressure power source 20 of the negative pressure assembly can be used to provide negative pressure for sucking in the cleaning liquid.

[0044] Specifically, under the action of negative pressure, the cleaning liquid in the liquid storage cup 6 enters the negative pressure cup 19 through the liquid guide tube 7. When all the cleaning liquid in the liquid storage cup 6 enters the negative pressure cup 19, the air will be attracted into the cleaning liquid of the negative pressure component by the negative pressure, that is, air continuously enters the liquid storage cup 6 to replenish gas for the negative pressure cup 19. The gas impacts the cleaning liquid to produce bubbles, so that the cleaning liquid in the negative pressure cup 19 continues to roll and bubble, similar to a "boiling" state. At the same time, the ultrasonic generator 4 is turned on and cooperates with the ultrasonic transducer 5 to transmit ultrasonic waves to the cleaning liquid, thereby promoting cleaning efficiency and cleaning effect.

[0045] In some alternative embodiments: See Figure 4 As shown, an embodiment of the present application provides a battery formation negative pressure component cleaning tool, and the side wall of the liquid storage cup 6 of the battery formation negative pressure component cleaning tool is provided with an air inlet connected to the outside world or the air source, and the air inlet is higher than the bottom end of the liquid guide tube 7.

[0046] The side wall of the liquid storage cup 6 in the embodiment of the present application is provided with an air inlet (not shown in the figure) connected to the outside world or the air source. The air inlet is higher than the bottom end of the liquid guide tube 7. The air inlet can supply air to enter the liquid storage cup 6 during cleaning, and can also serve as an overflow port when the liquid storage cup 6 is filled with cleaning liquid, limiting the height of the cleaning liquid filled, thereby limiting the volume of the cleaning liquid filled. In the process of the negative pressure component sucking in the cleaning liquid, it can prevent the liquid storage cup 6 from being filled with too much cleaning liquid and entering the air path of the negative pressure power source 20 during cleaning.

[0047] In some alternative embodiments: See Figure 4 As shown, an embodiment of the present application provides a negative pressure component cleaning tool for battery formation. The liquid supply unit of the negative pressure component cleaning tool for battery formation also includes a manifold 8 and several branch pipes 9 for conveying cleaning liquid. There are multiple liquid storage cups 6, and each liquid storage cup 6 is connected to the manifold 8 through a branch pipe 9.

[0048] The embodiment of the present application has multiple liquid storage cups 6 installed, each of which is correspondingly equipped with a liquid guide tube 7 and a suction nozzle docking flange 3. A manifold 8 is also installed in the frame 1. Each liquid storage cup 6 is connected to the manifold 8 through a diversion tube 9, thereby facilitating the simultaneous injection of cleaning liquid into multiple liquid storage cups 6 through the manifold 8, or the simultaneous recovery of used cleaning liquid in multiple liquid storage cups 6 through the manifold 8.

[0049] In this embodiment, in order to ensure the cleaning efficiency and cleaning effect of the cleaning liquid on the negative pressure component, multiple ultrasonic transducers 5 are installed and mounted at intervals on the bottom surface of the cover plate 2, without affecting the suction nozzle docking flange 3 on the top surface of the cover plate 2 to dock the negative pressure suction nozzle 18, and the spatial layout is reasonable.

[0050] In some alternative embodiments: See Figure 4 As shown, an embodiment of the present application provides a negative pressure component cleaning tool for battery formation. The liquid supply unit of the negative pressure component cleaning tool for battery formation also includes a liquid storage tank 10 for storing cleaning liquid. The liquid storage tank 10 is connected to the manifold 8 through a pipeline. A power component 11 is provided between the liquid storage tank 10 and the manifold 8 for providing power for the flow of cleaning liquid in the pipeline.

[0051] The liquid storage tank 10 of the embodiment of the present application can store cleaning liquid. The liquid storage tank 10 is connected to the manifold 8 through a pipeline. The pipeline is provided with a power component 11 for providing power for the flow of cleaning liquid in the pipeline. By driving the power component 11 in a forward or reverse direction, cleaning liquid can be injected into multiple liquid storage cups 6, or the cleaning liquid in multiple liquid storage cups 6 can be discharged back to the liquid storage tank 10.

[0052] In this embodiment, the power component 11 is a peristaltic pump. The peristaltic pump and the hose can drive the cleaning liquid in the pipeline in a forward or reverse direction. The peristaltic pump has good self-priming ability, can run dry, and can prevent backflow. The peristaltic pump does not contact the cleaning liquid during use, thereby preventing contamination of the cleaning liquid.

[0053] In some alternative embodiments: See Figure 4 As shown, an embodiment of the present application provides a negative pressure component cleaning tool for battery formation, and the pipeline of the negative pressure component cleaning tool for battery formation includes a first pipeline 12 connected to the manifold 8, a power component 11 is arranged on the first pipeline 12, and a second pipeline 13 for injecting liquid into the liquid storage cup 6 and a third pipeline 14 for discharging liquid into the liquid storage tank 10 are connected between the first pipeline 12 and the liquid storage tank 10.

[0054] The power component 11 of the embodiment of the present application is installed on the first pipeline 12. A second pipeline 13 and a third pipeline 14 are connected between the first pipeline 12 and the liquid storage tank 10. The second pipeline 13 is used for the cleaning liquid to flow out of the liquid storage tank 10, and the third pipeline 14 is used for the cleaning liquid to be discharged back into the liquid storage tank 10. Switching between the second pipeline 13 and the third pipeline 14 can reduce the risk of pipeline blockage.

[0055] For example, valves for controlling on / off can be installed on the second pipeline 13 and the third pipeline 14 respectively. When the power component 11 is driven in the forward direction, the second pipeline 13 is controlled to be connected and the third pipeline 14 is disconnected by the valve, so that the cleaning liquid in the liquid storage tank 10 can flow to the manifold 8 through the second pipeline 13 and the first pipeline 12, thereby filling multiple liquid storage cups 6.

[0056] When the power component 11 is driven in reverse, the second pipeline 13 is disconnected and the third pipeline 14 is connected by controlling the valve, so that the cleaning liquid in the liquid storage cup 6 can flow to the liquid storage tank 10 through the branch pipe, the confluence pipe 8, the first pipeline 12 and the third pipeline 14, thereby recovering the cleaning liquid in multiple liquid storage cups 6.

[0057] In some alternative embodiments: See Figure 4 As shown, an embodiment of the present application provides a negative pressure component cleaning tool for battery formation, and the liquid supply unit of the negative pressure component cleaning tool for battery formation also includes a filter component, which is arranged on the second pipeline 13, or the filter component is arranged in the liquid storage tank 10.

[0058] The second pipeline 13 of the present embodiment is equipped with a filter component (not shown) to filter the cleaning liquid in the liquid storage cup 6 as it is discharged back into the liquid storage tank 10, thereby preventing impurities from flowing back into the negative pressure assembly during the cleaning process. For example, the filter component can be a metal filter. In other embodiments, the filter component can be installed in the liquid storage tank 10.

[0059] In some alternative embodiments: See Figures 1 to 4 As shown, an embodiment of the present application provides a negative pressure component cleaning tool for battery formation, wherein the first pipeline 12 of the negative pressure component cleaning tool for battery formation is connected to the second pipeline 13 and the third pipeline 14 through a three-way joint 15, respectively. A first one-way valve 16 is provided on the second pipeline 13, and a second one-way valve 17 is provided on the third pipeline 14.

[0060] The first pipeline 12 of the embodiment of the present application is connected to the second pipeline 13 and the third pipeline 14 respectively through a three-way joint 15. A first one-way valve 16 is installed on the second pipeline 13, and the first one-way valve 16 limits the flow direction of the cleaning liquid from the liquid storage tank 10 to the first pipeline 12. A second one-way valve 17 is installed on the third pipeline 14, and the second one-way valve 17 limits the flow direction of the cleaning liquid from the first pipeline 12 to the liquid storage tank 10.

[0061] Exemplarily, the first one-way valve 16 and the second one-way valve 17 are both mechanical valves. When the power component 11 is driven in the forward direction, the first one-way valve 16 can automatically open under the action of pressure to allow the second pipeline 13 to be connected, and at the same time, the second one-way valve 17 can automatically close under the action of pressure to disconnect the third pipeline 14, so that the cleaning fluid in the liquid storage tank 10 can flow to the manifold 8 through the second pipeline 13 and the first pipeline 12, thereby filling multiple liquid storage cups 6.

[0062] When the power component 11 is driven in reverse, the first one-way valve 16 can automatically close under the action of pressure to disconnect the second pipeline 13, and at the same time the second one-way valve 17 can automatically open under the action of pressure to connect the third pipeline 14, so that the cleaning liquid in the liquid storage cup 6 can flow to the liquid storage tank 10 through the branch pipe, the confluence pipe 8, the first pipeline 12 and the third pipeline 14, thereby recovering the cleaning liquid in multiple liquid storage cups 6.

[0063] In some alternative embodiments: See Figure 4 As shown, an embodiment of the present application provides a negative pressure component cleaning tool for battery formation, wherein the first pipeline 12 of the negative pressure component cleaning tool for battery formation is connected to the second pipeline 13 and the third pipeline 14 through a three-way valve.

[0064] The first pipeline 12 of the embodiment of the present application is connected to the second pipeline 13 and the third pipeline 14 respectively through a three-way valve. For example, the three-way valve can be an electric valve. By controlling the three-way valve, the second pipeline 13 can be controlled to be connected and the third pipeline 14 can be disconnected, or the second pipeline 13 can be controlled to be disconnected and the third pipeline 14 can be controlled to be connected, thereby meeting the needs of filling the liquid storage cup 6 or recovering the cleaning liquid in the liquid storage cup 6.

[0065] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0066] It should be noted that, in this application, relational terms such as "first" and "second" are used only 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 terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0067] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A negative pressure cleaning tool for battery formation, characterized in that: include: A fixing unit comprising a frame (1) and a cover plate (2) mounted at the top opening of the frame (1), wherein the cover plate (2) is provided with a nozzle docking flange (3) for docking with a negative pressure component; A liquid supply unit, which is arranged in the frame (1) and is in communication with the nozzle docking flange (3), and is used to introduce cleaning liquid into the negative pressure component; An ultrasonic cleaning unit, comprising an ultrasonic generator (4) disposed in the frame (1), and an ultrasonic transducer (5) disposed on the cover plate (2) and connected to the ultrasonic generator (4), wherein the ultrasonic transducer (5) is used to transmit ultrasonic energy to the cleaning liquid when the liquid supply unit repeatedly flushes the negative pressure component, so that the cleaning liquid vibrates at an ultrasonic frequency to clean the negative pressure component; The nozzle docking flange (3) is provided with a mounting hole (31) for mounting a fastener, and a docking groove (32) for matching the negative pressure component. The docking groove (32) is provided with a liquid guide port (33) for communicating with the liquid supply unit. The docking groove (32) abuts against the negative pressure nozzle (18) on the negative pressure component, so that the cleaning liquid flows into and out of the negative pressure component through the liquid guide port (33) in the docking groove (32).

2. The negative pressure cleaning tool for battery formation according to claim 1, characterized in that: The liquid supply unit comprises a liquid storage cup (6) arranged in the frame (1), and a liquid guide tube (7) connected to the nozzle docking flange (3) and having one end extending into the liquid storage cup (6).

3. The negative pressure cleaning tool for battery formation according to claim 2, characterized in that: An air inlet connected to the outside world or an air source is provided on the side wall of the liquid storage cup (6), and the air inlet is higher than the bottom end of the liquid guide tube (7).

4. The negative pressure cleaning tool for battery formation according to claim 2, characterized in that: The liquid supply unit further comprises a confluence pipe (8) and a plurality of diversion pipes (9) for conveying the cleaning liquid. The number of the liquid storage cups (6) is multiple, and each of the liquid storage cups (6) is connected to the confluence pipe (8) via a diversion pipe (9).

5. The negative pressure cleaning tool for battery formation according to claim 4, characterized in that: The liquid supply unit further comprises a liquid storage tank (10) for storing cleaning liquid, the liquid storage tank (10) being connected to the manifold (8) via a pipeline, and a power component (11) for providing power for the flow of cleaning liquid in the pipeline being provided between the liquid storage tank (10) and the manifold (8).

6. The negative pressure cleaning tool for battery formation according to claim 5, characterized in that: The pipeline includes a first pipeline (12) connected to the manifold (8), the power component (11) is arranged on the first pipeline (12), and a second pipeline (13) for injecting liquid into the liquid storage cup (6) and a third pipeline (14) for discharging liquid into the liquid storage tank (10) are connected between the first pipeline (12) and the liquid storage tank (10).

7. The negative pressure cleaning tool for battery formation according to claim 6, characterized in that: The liquid supply unit further comprises a filter component, which is arranged on the second pipeline (13), or the filter component is arranged in the liquid storage tank (10).

8. The negative pressure cleaning tool for battery formation according to claim 6, characterized in that: The first pipeline (12) is connected to the second pipeline (13) and the third pipeline (14) respectively through a three-way connector (15); the second pipeline (13) is provided with a first one-way valve (16), and the third pipeline (14) is provided with a second one-way valve (17).

9. The negative pressure cleaning tool for battery formation according to claim 6, characterized in that: The first pipeline (12) is connected to the second pipeline (13) and the third pipeline (14) respectively through a three-way valve.

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