Liquid injection opening cleaning device

Abstract

The utility model relates to the technical field of battery production, and discloses a liquid injection port cleaning device which comprises a scrubbing mechanism and a liquid removing mechanism which are independently arranged, the scrubbing mechanism is configured to scrub residues at a liquid injection port, and the liquid removing mechanism is configured to remove waste liquid remaining at the liquid injection port after scrubbing of the scrubbing mechanism; the scrubbing mechanism comprises a driving body and a scrubbing part, the driving body is in driving connection with the scrubbing part, the driving body can drive the scrubbing part to rotate, and the scrubbing part can cover the liquid injection opening; the liquid removal mechanism comprises a vacuum source, a connecting pipe and a liquid suction part, the connecting pipe is connected between the vacuum source and the liquid suction part, and the liquid suction part can cover the liquid injection opening. Through the design of the scrubbing mechanism and the liquid removing mechanism, the liquid injection opening is kept clean, the cleaning effect is good, the phenomena of burst points, sand holes and the like during laser welding of sealing aluminum nails are avoided, and the laser welding quality is effectively guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery production, and particularly relates to a liquid injection port cleaning device. Background Art

[0002] Currently, in the manufacturing process of aluminum shell batteries in the lithium battery industry, the electrolyte enters the battery through the injection hole in the middle of the injection port on the top cover, and then a sealing nail is used to block the injection hole. Finally, the sealing aluminum nail is welded to the step outside the injection hole by laser welding. At this point, the inside and outside of the battery are completely separated.

[0003] However, after the electrolyte is injected and the injection hole is sealed with a sealant nail, residual electrolyte or electrolyte crystals may remain at the injection port. Therefore, a wiping head is often used to press a non-woven fabric against the injection port for cleaning. However, due to the step on the injection port, the residue cannot be completely cleaned. In addition, the wiping head wears quickly, and the cleaning effect cannot be guaranteed during long-term use. This can lead to undesirable phenomena such as cracking and sand holes when laser welding the sealed aluminum nail. Utility Model Content

[0004] In order to solve the shortcomings of the existing technology, the utility model provides a liquid injection port cleaning device. Through the design of a brushing mechanism and a liquid removal mechanism, the brushing mechanism is used to brush the liquid injection port, and then the liquid removal mechanism is used to remove the waste liquid after the brushing mechanism brushes the liquid injection port, so that the liquid injection port is kept clean and the cleaning effect is good, avoiding the occurrence of explosion points, sand holes and the like during laser welding of sealed aluminum nails, and effectively ensuring the quality of laser welding.

[0005] The technical effects to be achieved by the present invention are achieved through the following aspects:

[0006] The utility model provides a liquid injection port cleaning device, comprising a brushing mechanism and a liquid removal mechanism which are independently arranged, wherein the brushing mechanism is configured to brush the residue of the liquid injection port, and the liquid removal mechanism is configured to remove the waste liquid remaining in the liquid injection port after the brushing mechanism has brushed;

[0007] The brushing mechanism includes a driving body and a brushing component, wherein the driving body is drivingly connected to the brushing component, the driving body can drive the brushing component to rotate, and the brushing component can cover the liquid injection port;

[0008] The liquid removal mechanism includes a vacuum source, a connecting tube and a liquid suction piece. The connecting tube is connected between the vacuum source and the liquid suction piece. The liquid suction piece can cover the liquid injection port.

[0009] In some implementations, the brushing component includes a fixed block and a brush, the brush is disposed on the fixed block, the driving body is drivingly connected to the fixed block, and the driving body can drive the fixed block and the brush to rotate.

[0010] In some implementations, the scrubbing mechanism further includes a fixing frame and a protective cover, wherein the fixing frame is mounted on the fixing block, the protective cover is mounted on the brush and is connected to the fixing frame, and the driving body is mounted on the fixing frame. The protective cover can effectively prevent splashing of waste liquid and ensure cleanliness during the scrubbing process.

[0011] Preferably, the brush is arranged to protrude from the protective cover.

[0012] Preferably, the inner wall of the protective cover is arranged in contact with the brush.

[0013] In some implementations, the fixed blocks are arranged in an array with a plurality of channels, forming a chamber between the fixed blocks and the fixed frame, the channels connecting the chamber and the brush; and the fixed frame is provided with a liquid inlet pipe corresponding to the chamber. The liquid inlet pipe and the channels allow the flow of cleaning solvent, thereby improving the cleaning effect of the brush.

[0014] In some implementations, the liquid removal mechanism further includes a liquid collecting tank and a liquid drain pipe, the liquid drain pipe is connected to the liquid collecting tank, and the liquid collecting tank is connected to the vacuum source and the liquid suction component through the connecting pipe.

[0015] In some implementations, the liquid suction component includes a liquid suction head and a liquid suction port, the liquid suction head is disposed around the liquid suction port, and the liquid suction head is connected to the connecting tube.

[0016] In some implementations, the pipette head includes a body and a plurality of support blocks, wherein the support blocks are annularly spaced at one end of the body, and a flow cavity is formed between adjacent support blocks.

[0017] Preferably, the cross-sectional size of the support block gradually decreases as the support block moves away from the main body.

[0018] In summary, the present invention has at least the following advantages:

[0019] 1. The liquid injection port cleaning device provided by the utility model, through the design of the brushing mechanism and the liquid removal mechanism, first uses the brushing mechanism to brush the liquid injection port, and then uses the liquid removal mechanism to remove the waste liquid after the brushing mechanism brushes the liquid injection port, and the brushing mechanism and the liquid removal mechanism are both covered on the liquid injection port, thereby improving the completeness of cleaning, keeping the liquid injection port clean, and having a good cleaning effect, avoiding the occurrence of explosion points, sand holes and the like during laser welding of sealed aluminum nails, and effectively ensuring the quality of laser welding.

[0020] 2. The liquid injection port cleaning device provided by the utility model adopts a brushing mechanism, which can avoid the cleaning method of using a wiping head to press the non-woven fabric to the liquid injection port for wiping, avoid the phenomenon of rapid wear of the wiping head, achieve the durability of the brushing mechanism, and effectively ensure the brushing effect of the liquid injection port during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of the scrubbing mechanism of Example 1 of the present utility model.

[0022] Figure 2 This is a schematic structural diagram of the liquid removal mechanism of Example 1 of the present utility model.

[0023] Figure 3 This is a schematic diagram of the structure of the scrubbing mechanism of Example 2 of the present utility model.

[0024] Figure 4 This is a schematic structural diagram of the scrubbing mechanism of Example 3 of the present utility model.

[0025] Figure 5 This is a schematic diagram of the brushing state of the brushing mechanism and the liquid injection port in Example 3 of the present utility model.

[0026] Figure 6 This is a schematic diagram of the liquid removal mechanism structure of Example 4 of the present utility model.

[0027] Figure 7 This is a bottom view of the liquid-absorbing component of Example 4 of the present utility model.

[0028] Figure 8 for Figure 7 Schematic diagram of the AA section.

[0029] Figure 9 Schematic diagram of the liquid absorbing state of the liquid absorbing member and the liquid injection port in Example 4 of the present utility model.

[0030] Markings in the figure:

[0031] 1. Brushing mechanism, 11. Driving body, 12. Brushing component, 120. Chamber, 121. Fixed block, 1211. Channel, 122. Brush, 123. Fixed frame, 1231. Liquid inlet pipe, 124. Protective cover; 2. Liquid removal mechanism, 21. Vacuum source, 22. Connecting pipe, 23. Liquid suction component, 231. Liquid suction head, 232. Liquid suction port, 2321. Main body, 2322. Support block, 2323. Flow cavity, 24. Liquid collecting tank, 25. Liquid discharge pipe; 3. Liquid filling port; 4. Top cover plate. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1:

[0035] Please see the attached Figure 1 and attached Figure 2 The liquid injection port cleaning device of the present invention includes a brushing mechanism 1 and a liquid removal mechanism 2 which are independently arranged.

[0036] The scrubbing mechanism 1 is configured to scrub residue from the liquid injection port 3. The scrubbing mechanism 1 includes a driving body 11 and a scrubbing member 12. The driving body 11 is drivably connected to the scrubbing member 12. The driving body 11 can drive the scrubbing member 12 to rotate, and the scrubbing member 12 can cover the liquid injection port 3. It is understood that the driving body 11 can be a motor, which can drive the scrubbing member 12 to rotate in the forward or reverse direction.

[0037] Preferably, during the brushing process of the liquid injection port 3, the brushing component 12 is arranged corresponding to the liquid injection port 3, and in the horizontal section, the cross-sectional size of the brushing component 12 is not smaller than the cross-sectional size of the liquid injection port 3; that is, the brushing component 12 brushes to the edge of the liquid injection port 3, and the brushing component 12 completely covers the liquid injection port 3 to ensure the integrity of the brushing.

[0038] Preferably, the scrubbing component 12 includes a fixed block 121 and a brush 122. The brush 122 is mounted on the fixed block 121. The driver 11 is rotatably connected to the fixed block 121, and the driver 11 can drive the fixed block 121 and the brush 122 to rotate. Specifically, the brush 122 is made of a relatively soft material to avoid damage to the battery top cover 4 and the liquid filling port 3. Preferably, the brush 122 is circular, with a diameter 2-4 mm larger than the diameter of the liquid filling port 3. During scrubbing, the center of the circular brush 122 is aligned with the center of the liquid filling port 3.

[0039] Please see the attached Figure 2The liquid removal mechanism 2 is configured to remove waste liquid remaining at the liquid injection port after scrubbing by the scrubbing mechanism 1. The liquid removal mechanism 2 includes a vacuum source 21, a connecting tube 22, and a liquid suction member 23. The connecting tube 22 is connected between the vacuum source 21 and the liquid suction member 23, and the liquid suction member 23 can cover the liquid injection port 3. Specifically, the vacuum source 21 is a vacuum pump. As will be understood, the liquid suction member 23 uses the negative pressure generated by the vacuum source 21 to suction out the waste liquid.

[0040] During the liquid removal process at the liquid injection port 3, the liquid suction piece 23 is arranged corresponding to the liquid injection port 3. In the horizontal section, the cross-sectional size of the liquid suction piece 23 is not less than the cross-sectional size of the liquid injection port 3, that is, the liquid suction piece 23 completely covers the liquid injection port 3, which can increase the suction force of the liquid suction piece 23 on the edge of the liquid injection port 3 and ensure the comprehensive removal of waste liquid.

[0041] In this embodiment, the liquid injection port 3 is first scrubbed with the scrubbing mechanism 1, that is, the driving body 11 is started to drive the scrubbing component 12 to rotate, and then the brush 122 scrubs the liquid injection port 3. Then, the liquid removal mechanism 2 is used to remove the waste liquid after the scrubbing mechanism 1 scrubs the liquid injection port 3, that is, the vacuum source 21 is started, and a negative pressure is created inside the liquid absorption part and at the liquid injection port 3 through the connecting tube 22, so that the waste liquid in the liquid injection port 3 is sucked into the liquid absorption part, thereby completing the removal of the waste liquid. The liquid injection port 3 is kept clean and the cleaning effect is good, avoiding the occurrence of explosion points, sand holes, etc. during laser welding of sealed aluminum nails, effectively ensuring the quality of laser welding. It can also avoid the cleaning method of using a wiping head to press the non-woven fabric to the liquid injection port for wiping, avoiding the phenomenon of rapid wear of the wiping head, achieving the durability of the scrubbing mechanism 1, and effectively ensuring the scrubbing effect of the liquid injection port 3 during long-term use.

[0042] Example 2:

[0043] The difference between this embodiment and embodiment 1 is that this embodiment further optimizes the structure of the liquid injection port cleaning device of the utility model.

[0044] See Figure 3The scrubbing mechanism 1 also includes a fixing frame 123 and a protective cover 124. The fixing frame 123 is sleeved on the fixing block 121, and the protective cover 124 is sleeved on the brush 122 and connected to the fixing frame 123. The protective cover 124 can be fastened to the fixing frame 123 by screws to facilitate the removal of the protective cover 124. The brush 122 is protruding from the protective cover 124. The driving body 11 is installed on the fixing frame 123. The protective cover 124 can effectively prevent the splashing of waste liquid and ensure the cleanliness of the scrubbing process. The protruding setting of the brush is adapted to the liquid injection port in the sunken state, that is, when the scrubbing mechanism 1 is supported on the upper surface of the battery top cover plate 4 by the protective cover 124 for scrubbing, the brush 122 protruding from the protective cover 124 can fill the liquid injection port 3 set in a stepped manner and sunk on the battery top cover plate 4, so that the edges and corners of the liquid injection port can be scrubbed clean, ensuring the comprehensiveness of the scrubbing and effectively improving the cleaning ability of the brush.

[0045] Preferably, the inner wall of the protective cover 124 is arranged close to the brush 122, so that during the rotation of the brush 122, the protective cover 124 can restrict the brushing range of the brush 122, thereby improving the brushing effect.

[0046] It can be understood that the protective cover 124 is designed to be mounted on the brush 122. The protective cover 124 can block the waste liquid splashed out by the brush 122 during the rotating cleaning process, ensure the cleanliness of the cleaning process, effectively avoid secondary pollution, avoid adding secondary cleaning links, and improve cleaning efficiency.

[0047] Example 3:

[0048] The difference between this embodiment and embodiment 2 is that this embodiment further optimizes the structure of the liquid injection port cleaning device of the utility model.

[0049] See Figure 4-Figure 5 , the fixed block 121 is provided with a plurality of channels 1211 arranged in an array, and a chamber 120 is formed between the fixed block and the fixed frame; the fixed frame 123 is provided with a liquid inlet pipe 1231 corresponding to the chamber 120. Preferably, the diameter of the channel 1211 is 1-2 mm, and there are 6 channels. Among them, the liquid inlet pipe 1231 is used to inject the cleaning solvent into the chamber 120. The channel 1211 is used to allow the cleaning solvent to pass through the fixed block 121 and enter the brush 122. During the cleaning process, the brush 122 is mixed with a cleaning solvent that can dilute the electrolyte and dissolve electrolyte crystals, which can effectively improve the scrubbing effect and speed up the cleaning speed.

[0050] Example 4:

[0051] The difference between this embodiment and embodiment 1 is that this embodiment further optimizes the structure of the liquid injection port cleaning device of the utility model.

[0052] See Figure 6The liquid removal mechanism 2 further includes a liquid collecting tank 24 and a liquid drain pipe 25. The liquid drain pipe 25 is connected to the liquid collecting tank 24. The liquid collecting tank 24 is connected to the vacuum source 21 and the liquid suction member 23 via a connecting pipe 22. The liquid collecting tank 24 is used to collect waste liquid from the liquid injection port 3 sucked by the liquid suction member 23. The liquid drain pipe 25 is used to discharge the waste liquid in the liquid collecting tank 24. It is understood that when the waste liquid in the liquid collecting tank 24 reaches a certain level, in order to ensure the continuous cleaning of the liquid injection port 3, the waste liquid in the liquid collecting tank 24 needs to be discharged.

[0053] See Figure 7-Figure 9 The liquid absorbing member 23 includes a liquid absorbing head 231 and a liquid absorbing port 232. The liquid absorbing head 231 is arranged around the liquid absorbing port 232 and is connected to the connecting tube 22. The liquid absorbing head 231 includes a body 2321 and a plurality of support blocks 2322. The support blocks 2322 are arranged at one end of the body 2321 in an annular manner. A flow cavity 2323 is formed between adjacent support blocks 2322. As the support blocks 2322 move away from the body 2321, the cross-sectional dimensions of the support blocks 2322 gradually decrease. The liquid absorbing head 231 is configured as a circular cover, the inner diameter of which is 1-2 mm larger than the diameter of the circular brush 122; the height of the support blocks 2322 is 1-2 mm. With this arrangement, when the liquid absorbing member 23 is supported on the upper surface of the battery top cover plate 4 by the support block 2322 to absorb liquid, the vacuum source starts to draw a vacuum, and external air enters the interior of the liquid absorbing head 231 from the flow-forming cavity 2323, thereby forming an airflow, so that the airflow can carry the waste liquid remaining in the liquid injection port and be sucked away through the liquid suction port 232 and the connecting tube 22. By setting the cross-sectional dimensions of the support block 2322 to gradually decrease in the direction away from the body 2321, the cross-sectional dimensions of the flow-forming cavity 2323 are gradually increased in the direction away from the body 2321, and several of the flow-forming cavities 2323 are zigzag-shaped, thereby increasing the flow area of ​​the flow-forming cavity 2323, ensuring the flow rate of the airflow and the cleaning effect.

[0054] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0055] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0056] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0057] In the present invention, unless otherwise expressly specified or limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0058] Although the present invention has been described with reference to the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and variations based on the above content. Therefore, all such substitutions, modifications and variations are included within the spirit and scope of the appended claims.

Claims

1. A liquid injection port cleaning device, characterized in that: It includes a brushing mechanism and a liquid removal mechanism that are independently arranged, wherein the brushing mechanism is configured to brush the residue at the liquid injection port, and the liquid removal mechanism is configured to remove the waste liquid remaining at the liquid injection port after the brushing mechanism has brushed; The brushing mechanism includes a driving body and a brushing component, wherein the driving body is drivingly connected to the brushing component, the driving body can drive the brushing component to rotate, and the brushing component can cover the liquid injection port; The liquid removal mechanism includes a vacuum source, a connecting tube and a liquid suction piece, wherein the connecting tube is connected between the vacuum source and the liquid suction piece, and the liquid suction piece can cover the liquid injection port; The liquid absorbing component includes a liquid absorbing head and a liquid absorbing port, wherein the liquid absorbing head is arranged around the liquid absorbing port and is connected to the connecting pipe; The liquid pipetting head comprises a body and a plurality of support blocks. The support blocks are arranged at one end of the body in an annular manner, and a flow cavity is formed between adjacent support blocks.

2. The liquid injection port cleaning device according to claim 1, characterized in that: The brushing component includes a fixed block and a brush. The brush is arranged on the fixed block. The driving body is drivingly connected to the fixed block. The driving body can drive the fixed block and the brush to rotate.

3. The liquid injection port cleaning device according to claim 2, characterized in that: The scrubbing mechanism further comprises a fixing frame and a protective cover. The fixing frame is sleeved on the fixing block. The protective cover is sleeved on the brush and connected to the fixing frame. The driving body is installed on the fixing frame.

4. The liquid injection port cleaning device according to claim 3, characterized in that: The brush is arranged to protrude from the protective cover.

5. The liquid injection port cleaning device according to claim 3, characterized in that: The inner wall of the protective cover is attached to the brush.

6. The liquid injection port cleaning device according to claim 3, characterized in that: The fixed blocks are arranged in an array with a plurality of channels, a chamber is formed between the fixed blocks and the fixed frame, the channels are in communication with the chamber and the brush; and a liquid inlet pipe is passed through the fixed frame corresponding to the chamber.

7. The liquid injection port cleaning device according to claim 1, characterized in that: The liquid removal mechanism further includes a liquid collecting tank and a liquid drain pipe. The liquid drain pipe is connected to the liquid collecting tank. The liquid collecting tank is connected to the vacuum source and the liquid suction component through the connecting pipe.

8. The liquid injection port cleaning device according to claim 1, characterized in that: As the support block moves away from the main body, the cross-sectional size of the support block gradually decreases.

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