Battery liquid injection device and battery production system

Abstract

According to the battery liquid injection device and the battery production system, before liquid injection, the mounting part is driven to move relative to the liquid injection main body, and the wiping assembly is driven to be away from the lower part of the liquid injection end in the direction intersecting with the preset direction, so that the liquid injection end is exposed, and the liquid injection operation is conveniently completed. And after liquid injection is completed, the liquid injection end is lifted up, and the mounting piece is driven to move again, so that the wiping assembly moves to the position below the liquid injection end. Due to the fact that the wiping assembly can adsorb the electrolyte on the liquid injection end, the residual electrolyte can be stably adsorbed in the wiping assembly, in the process that the liquid injection end is lifted, the probability that the electrolyte drips on the surface of the battery under the influence of shaking can be reduced, the probability that the battery is polluted is reduced, and the production quality of the battery is improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to battery electrolyte filling devices and battery production systems. Background Technology

[0002] In battery manufacturing, electrolyte filling is one of the most critical steps. The injection of electrolyte requires precise control, and after filling, it's essential to prevent electrolyte from dripping from the filling nozzle and contaminating the battery surface. Therefore, battery filling devices typically incorporate anti-drip structures to prevent electrolyte leakage. However, limitations in the design of traditional anti-drip structures mean that electrolyte is easily shaken and drips onto the battery surface, leading to battery contamination. Utility Model Content

[0003] Therefore, it is necessary to provide a battery electrolyte injection device and a battery production system to reduce the probability of electrolyte dripping onto the battery surface due to vibration, thereby reducing the probability of battery contamination and improving battery production quality.

[0004] In a first aspect, this application provides a battery electrolyte filling device, which includes: an electrolyte filling body having an electrolyte filling end at one end along a preset direction; and a wiping mechanism including a wiping component and a mounting member connected to the wiping component. The mounting member is movably disposed on the electrolyte filling body. When the mounting member is configured to move relative to the electrolyte filling body, the wiping component can move to below the electrolyte filling end or to below the electrolyte filling end along a direction intersecting the preset direction. The wiping component is used to absorb electrolyte on the electrolyte filling end.

[0005] In the aforementioned battery electrolyte filling device, before electrolyte filling, the mounting component is moved relative to the filling body, causing the wiping assembly to move away from below the filling end to expose it and facilitate the filling operation. After filling, the filling end is lifted, and the mounting component is moved again, causing the wiping assembly to move below the filling end. Because the wiping assembly can absorb electrolyte on the filling end, residual electrolyte can be stably absorbed inside the wiping assembly. This reduces the probability of electrolyte dripping onto the battery surface due to vibration during the lifting of the filling end, thereby reducing the likelihood of battery contamination and improving battery production quality.

[0006] In some embodiments, one end of the mounting component is rotatably connected to the liquid injection body, and the other end is connected to the wiping assembly. When the mounting component rotates, the wiping assembly rotates to or away from below the liquid injection end. This design facilitates the movement of the wiping assembly to or away from below the liquid injection end, improving operational convenience. Simultaneously, rotating it away from below the liquid injection end allows the wiping assembly to be raised in a predetermined direction after rotation, reducing the likelihood of interference between the wiping assembly and the battery during liquid injection and improving the stability of the liquid injection process.

[0007] In some embodiments, the wiping mechanism further includes a movable plug, which is rotatably connected to the injection body, and one end of the mounting component is connected to the movable plug. This design, with the introduction of the movable plug, facilitates the stable installation of the mounting component on the injection body, improving the stability of the structure.

[0008] In some embodiments, the wiping mechanism further includes an operating element connected to the wiping assembly or mounting component. This design, by introducing the operating element, facilitates the operator in driving the wiping assembly, improving the convenience of the liquid injection operation.

[0009] In some embodiments, the operating element includes a pull cable and a pull ring, with one end of the pull cable connected to the wiping assembly or mounting component and the other end connected to the pull ring. This design facilitates rotation of the mounting component via the pull ring and pull cable, further improving the convenience of the injection operation.

[0010] In some embodiments, the battery filling device further includes a fixing seat disposed on the filling body. The fixing seat has a through hole, one end of the pull wire extends out of the through hole, and the pull ring is located on the side of the fixing seat away from the filling end. This design, by introducing the through hole, constrains the pull wire when pulling the wiping assembly, thereby keeping the pulling trajectory consistent and improving the stability of the wiping assembly's movement.

[0011] In some embodiments, the injection body includes a first component and a second component connected to the first component. The end of the second component away from the first component includes an injection end. A fixing seat is connected to the end of the first component away from the second component, and a mounting member is movably connected to the first component. This design facilitates the movement of the wiping assembly over a wider range by driving it with a pull ring. This ensures sufficient spacing between the wiping assembly and the injection end during the injection process, providing effective space for the injection operation.

[0012] In some embodiments, the circumferential edge of the fixing seat protrudes beyond the first component in a direction intersecting with a preset direction, and the portion of the fixing seat protruding beyond the first component is provided with a through hole in the preset direction. This design facilitates easier pulling of the wiping assembly and improves operational convenience.

[0013] In some embodiments, the wiping assembly includes a housing and an adsorbent disposed on the housing. The housing is connected to a mounting component, and the adsorbent is used to adsorb the electrolyte at the injection end. This design, introducing the adsorbent and the housing, allows the adsorbent to be stably mounted on the mounting component, facilitating an effective anti-drip effect.

[0014] In some embodiments, the housing has a receiving cavity and an opening communicating with the receiving cavity, the adsorbent is disposed in the receiving cavity and partially extends out of the opening.

[0015] Secondly, this application provides a battery production system, which includes the battery liquid injection device described above. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the battery liquid injection device for wiping as described in some embodiments of this application.

[0017] Figure 2 This is a structural diagram of the battery liquid injection device described in some embodiments of this application.

[0018] Figure 3 This is a top view of the wiping assembly described in some embodiments of this application.

[0019] 10. Injection body; 11. Injection end; 12. First component; 13. Second component; 14. Fixing base; 141. Perforation; 20. Wiping mechanism; 21. Mounting component; 22. Wiping assembly; 221. Housing; 222. Receiving cavity; 223. Opening; 224. Adsorbent; 23. Movable plug; 24. Operating component; 241. Pull cord; 242. Pull ring; X, Preset direction. Detailed Implementation

[0020] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0021] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0022] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0024] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0026] Currently, judging from market trends, the application of power battery devices is becoming increasingly widespread. Power battery devices are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace, among other fields. With the continuous expansion of the application areas of power battery devices, the market demand is also constantly increasing.

[0027] During battery production, electrolyte needs to be injected into the battery. After injection, the injection device is lifted away from the injection port. During this lifting process, the electrolyte on the injection device is easily affected by vibration and drips onto the battery surface. This effect is particularly pronounced when the injection device stops moving after reaching a certain height. The electrolyte dripping onto the battery surface not only increases the difficulty of subsequent cleaning processes but may also cause corrosion on the battery surface and even affect welding.

[0028] To address this, traditional electrolyte injection devices incorporate a diaphragm. When the device is lifted away from the injection port, the diaphragm seals the injection channel, preventing electrolyte flow. However, while this design prevents electrolyte from dripping from the injection channel, residual electrolyte on the injection end of the device is still susceptible to dripping due to vibration, leading to contamination of the battery surface.

[0029] Based on this, and addressing the problem of electrolyte dripping onto the battery surface due to vibration in traditional electrolyte filling devices, this application provides a battery electrolyte filling device. Before filling, the mounting component is moved relative to the filling body, causing the wiping assembly to move away from the bottom of the filling end along a direction intersecting with a preset direction, thereby exposing the filling end and facilitating the filling operation. After filling, the filling end is lifted, and the mounting component is moved again, causing the wiping assembly to move below the filling end. Since the wiping assembly can absorb electrolyte on the filling end, residual electrolyte can be stably absorbed inside the wiping assembly. This reduces the probability of electrolyte dripping onto the battery surface due to vibration during the lifting of the filling end, thereby reducing the likelihood of battery contamination and improving battery production quality.

[0030] According to some embodiments of this application, please refer to Figure 1 This application provides a battery electrolyte filling device, which includes an filling body 10 and a wiping mechanism 20. The filling body 10 has a filling end 11 at one end along a preset direction X. The wiping mechanism 20 includes a wiping assembly 22 and a mounting member 21 connected to the wiping assembly 22. The mounting member 21 is movably disposed on the filling body 10. When the mounting member 21 is configured to move relative to the filling body 10, the wiping assembly 22 can move to below the filling end 11 or to below the filling end 11 in a direction intersecting the preset direction X. The wiping assembly 22 is used to absorb the electrolyte on the filling end 11.

[0031] The electrolyte injection body 10 refers to a structure with internal channels for electrolyte flow, such as an injection nozzle. The electrolyte injection end 11 refers to the end of the electrolyte injection body 10 that outputs electrolyte. During the electrolyte injection process, the electrolyte injection end 11 can be aligned with the electrolyte injection port on the battery to inject electrolyte into the battery.

[0032] The wiping assembly 22 is a structure with an adsorption function. When the wiping assembly 22 is located below the electrolyte injection end 11, the residual electrolyte can be absorbed by the wiping assembly 22, reducing the probability of electrolyte dripping onto the battery surface due to vibration. It should be noted that "wiping assembly 22 below the electrolyte injection end 11" can be understood as: the projection of the electrolyte injection end 11 along the preset direction X is located on the wiping assembly 22. The wiping assembly 22 is located away from the electrolyte injection end 11 along the direction intersecting with the preset direction X, thus exposing the electrolyte injection end 11 in the preset direction X, facilitating the electrolyte injection port on the battery along the preset direction X. In this case, the projection of the wiping assembly 22 along the preset direction X is not located on the wiping assembly 22.

[0033] When the wiping assembly 22 is located below the liquid injection end 11, the wiping assembly 22 can contact the liquid injection end 11, thereby directly adsorbing the residual electrolyte into the interior of the wiping assembly 22 through contact. Of course, the wiping assembly 22 may not contact the liquid injection end 11, so that even if electrolyte drips, it will drip onto the wiping assembly 22 and be adsorbed by the wiping assembly 22.

[0034] In some examples, the preset direction X can be vertical. Meanwhile, the structure of the wiping component 22 can be varied, including but not limited to sponge, cotton, and paper towels.

[0035] Mounting component 21 refers to the structure for movably mounting the wiping assembly 22 on the injection body 10. It can be, but is not limited to, a linkage structure or a slider structure. The mounting component 21 can be movably connected to the injection body 10 in various ways, such as sliding or rotating. In this case, the wiping assembly 22 can move to below the injection end 11 via sliding or rotating. When the mounting component 21 is slidably mounted on the injection body 10, the wiping assembly 22 can be translated to below the injection end 11 in a direction perpendicular to the preset direction X. When performing the injection operation, the mounting component 21 can be translated, causing the wiping assembly 22 to move away from below the injection end 11.

[0036] This design reduces the likelihood of electrolyte dripping onto the battery surface due to vibration during the lifting of the electrolyte injection end 11, thereby reducing the chance of battery contamination and improving battery production quality.

[0037] Optionally, according to some embodiments of this application, please refer to Figure 1 One end of the mounting component 21 is rotatably connected to the liquid injection body 10, and the other end is connected to the wiping assembly 22. When the mounting component 21 rotates, the wiping assembly 22 rotates to or away from below the liquid injection end 11.

[0038] It can be seen that the wiping assembly 22 rotates in a swinging manner to or away from the liquid injection end 11 below. When the wiping assembly 22 swings through the mounting member 21, the movement trajectory of the wiping assembly 22 can have a component in the direction intersecting with the preset direction X, or it can have a component in the preset direction X. This allows the wiping assembly 22, after moving away, to be lifted a certain distance in the preset direction X, thereby reducing the probability of interference between the wiping assembly 22 and the battery when liquid is injected at the liquid injection end 11.

[0039] There are also various ways to rotate the mounting part 21 and the liquid injection body 10. For example, it can be rotated to the liquid injection body 10 by means of a pin and hole; or it can be connected to the liquid injection body 10 by a hinge structure, etc.

[0040] Additionally, the rotation of the mounting component 21 can be manually driven. For example, before injection, the mounting component 21 can be manually rotated to move the wiping assembly 22 away from below the injection end 11, exposing the injection end 11. See the following for details. Figure 2 After the liquid injection is completed, the injection end 11 is raised in the preset direction X; at the same time, the mounting part 21 is manually rotated so that the wiping assembly 22 is back below the injection end 11. Of course, the rotation of the mounting part 21 can also be automatically driven, such as by introducing a motor to drive the mounting part 21 to rotate before the liquid injection; after the liquid injection is completed, the mounting part 21 is driven to rotate in the opposite direction by the motor.

[0041] This design facilitates the movement of the wiping component 22 to or away from the underside of the liquid injection end 11, improving operational convenience. At the same time, rotating it away from the underside of the liquid injection end 11 allows the wiping component 22 to be raised to a certain extent in the preset direction X after rotation, reducing the probability of interference between the wiping component 22 and the battery during liquid injection and improving the stability of the liquid injection process.

[0042] Optionally, according to some embodiments of this application, please refer to Figure 1 The wiping mechanism 20 also includes a movable plug 23, which is rotatably connected to the liquid injection body 10, and one end of the mounting component 21 is connected to the movable plug 23.

[0043] The movable plug 23 is a cylindrical structure that is rotatably mounted in the injection body 10, allowing the mounting component 21 to rotate around it. The movable plug 23 can rotate in various ways on the injection body 10, such as by having a shaft hole on the injection body 10 into which the movable plug 23 can be rotatably inserted. Simultaneously, to restrict axial movement of the movable plug 23, limiting protrusions can be provided at both ends of the movable plug 23, ensuring its stable installation in the shaft hole and reducing the risk of it falling out axially.

[0044] In addition, there are various ways to connect the mounting part 21 and the movable plug 23, such as, but not limited to, threaded connection, snap-fit, bolt connection, adhesive connection, etc.

[0045] This design introduces a movable plug 23, which facilitates the stable installation of the mounting component 21 on the liquid injection body 10, thereby improving the stability of the structure.

[0046] Optionally, according to some embodiments of this application, please refer to Figure 1 The wiping mechanism 20 also includes an operating element 24, which is connected to the wiping assembly 22 or the mounting element 21.

[0047] Before injection, the wiping assembly 22 can be swung relative to the injection body 10 by the operating member 24, so that the wiping assembly 22 moves away from the bottom of the injection end 11, exposing the injection end 11. The operating member 24 can be a flexible or rigid structure, such as a steel strip or aluminum alloy strip. When the operating member 24 is a flexible structure, after injection is complete, the operating member 24 can be released, allowing the wiping assembly 22 to rotate back to the bottom of the injection end 11 under its own weight.

[0048] Of course, operating components 24 can also be provided on opposite sides of the mounting component 21. In this way, the mounting component 21 can be pulled and rotated in one direction by one of the operating components 24, so that the wiping component 22 rotates away from the bottom of the liquid injection end 11. After the liquid injection is completed, the mounting component 21 can be pulled and rotated in another direction by another operation, so that the wiping component 22 rotates to the bottom of the liquid injection end 11.

[0049] In addition, the connection method of the operating component 24 to the wiping assembly 22 or the mounting component 21 may be, but is not limited to, binding, snap-fitting, bolting, or bonding.

[0050] This design introduces the operating component 24, which makes it easier for operators to drive the wiping assembly 22 and improves the convenience of the liquid injection operation.

[0051] Optionally, according to some embodiments of this application, please refer to Figure 1 The operating component 24 includes a pull cord 241 and a pull ring 242. One end of the pull cord 241 is connected to the wiping component 22 or the mounting component 21, and the other end is connected to the pull ring 242.

[0052] Therefore, please refer to the following before injection: Figure 2Pulling the pull ring 242 causes the mounting component 21 to rotate via the pull cable 241, rotating the wiping assembly 22 away from below the electrolyte filling end 11, thus aligning the electrolyte filling end 11 with the electrolyte filling port on the battery. During the electrolyte filling process, the pull ring 242 is kept in a pulled state to maintain a certain distance between the wiping assembly 22 and the electrolyte filling end 11, preventing the wiping assembly 22 from pressing against the battery surface. After the electrolyte filling is completed, the electrolyte filling end 11 is lifted away from the electrolyte filling port in the preset direction X, and the pull ring 242 can be released, allowing the wiping assembly 22 to rotate under its own weight to below the electrolyte filling end 11, reducing the probability of residual electrolyte dripping onto the battery surface.

[0053] Additionally, one end of the pull cord 241 can be fixed to the mounting member 21 or to the wiping assembly 22. For example, one end of the pull cord 241 can be fixed to the end of the mounting member 21 that connects to the wiping assembly 22, so as to make it easier to pull the wiping assembly 22 to rotate.

[0054] This design, through the pull ring 242 and pull line 241, facilitates the rotation of the mounting part 21, further improving the convenience of the liquid injection operation.

[0055] Optionally, according to some embodiments of this application, please refer to Figure 1 The battery liquid injection device also includes a fixing seat 14, which is located on the liquid injection body 10. A through hole 141 is provided on the fixing seat 14, one end of the pull wire 241 extends out of the through hole 141, and the pull ring 242 is located on the side of the fixing seat 14 away from the liquid injection end 11.

[0056] When the wiping component 22 is pulled to a certain height, the friction between the pull wire 241 and the wall of the perforation 141 keeps the wiping component 22 in a fixed position, saving the pulling force on the wiping component 22. At the same time, when pulling the wiping component 22, the pull wire 241 is constrained by the perforation 141, keeping the pulling trajectory consistent, which helps to improve the stability of the movement of the wiping component 22.

[0057] The perforation 141 refers to the structure that penetrates the fixing seat 14. Its penetration direction can be varied, for example, the perforation 141 can penetrate both opposite surfaces of the fixing seat 14 along a predetermined direction X. Meanwhile, the pull ring 242 is located on the side of the fixing seat 14 away from the injection end 11, facilitating operator control of the pull ring 242. Furthermore, the pull ring 242 can be designed to be larger than the opening size of the perforation 141, thus preventing the pull ring 242 from falling out of the fixing seat 14.

[0058] This design, with the introduction of perforations 141, constrains the pull wire 241 as it pulls the wiping assembly 22, thereby ensuring a uniform pulling trajectory and improving the stability of the wiping assembly 22's movement.

[0059] Optionally, according to some embodiments of this application, please refer to Figure 1 The injection body 10 includes a first component 12 and a second component 13 connected to the first component 12. The end of the second component 13 away from the first component 12 includes an injection end 11. A fixing seat 14 is connected to the end of the first component 12 away from the second component 13. An installation component 21 is movably connected to the first component 12.

[0060] It can be seen that, in the preset direction X, the position of the movable connection of the mounting part 21 is lower than the position of the pull ring 242, which is beneficial for driving the wiping assembly 22 to move within a wider range through the pull ring 242. In this way, during the liquid injection process, a sufficient distance can be maintained between the wiping assembly 22 and the liquid injection end 11, providing effective space for the liquid injection operation. At the same time, the fixing seat 14 is connected to the end of the first part 12 away from the second part 13, making the pull ring 242 located on the fixing seat 14 easier to operate.

[0061] Furthermore, the radial dimension of the fixing seat 14 can be designed to be greater than the radial dimension of the first component 12. For example, the diameter of the fixing seat 14 is greater than the diameter of the first component 12, the circumferential edge of the fixing seat 14 protrudes out of the first component 12, and the portion of the fixing seat 14 protruding out of the first component 12 is provided with a through hole 141 along a preset direction X.

[0062] This design allows the wiping assembly 22 to move over a wider range via the pull ring 242, thus maintaining a sufficient distance between the wiping assembly 22 and the injection end 11 during the injection process, providing effective space for the injection operation.

[0063] Optionally, according to some embodiments of this application, please refer to Figure 1 The circumferential edge of the fixing seat 14 protrudes out of the first component 12 along the direction intersecting with the preset direction X, and the portion of the fixing seat 14 protruding out of the first component 12 is provided with a through hole 141 along the preset direction X.

[0064] The circumferential edge of the fixing seat 14 protrudes beyond the first component 12, indicating that in the radial direction, such as in a direction perpendicular to the preset direction X, the size of the fixing seat 14 is larger than the size of the first component 12. By providing the through hole 141 on the portion of the fixing seat 14 that protrudes from the first component 12, the pull ring 242 can be moved further away from the wiping assembly 22 in the direction intersecting with the preset direction X, thereby facilitating easier pulling of the wiping assembly 22.

[0065] This design makes it easier to pull the wiping component 22, improving the convenience of operation.

[0066] Optionally, according to some embodiments of this application, please refer to Figure 2 and Figure 3The wiping assembly 22 includes a housing 221 and an adsorbent 224 disposed on the housing 221. The housing 221 is connected to the mounting component 21, and the adsorbent 224 is used to adsorb the electrolyte at the injection end 11.

[0067] The adsorbent 224 refers to a structure capable of adsorbing electrolyte. It can be a porous or fluffy structure, such as, but not limited to, sponges, cotton, or paper towels. The shell 221 refers to a structure for mounting the adsorbent 224. It can be a plate-like structure or a structure with internal space, capable of enclosing at least part of the adsorbent 224. The adsorbent 224 is detachably connected to the shell 221, allowing for periodic replacement of the adsorbent 224. Simultaneously, the removed adsorbent 224 can be squeezed to recover the adsorbed electrolyte, reducing the cost of electrolyte injection operations.

[0068] There are various ways to connect the housing 221 and the mounting part 21, such as, but not limited to, bolt connection, snap-fit, welding, bonding, pin connection, etc.

[0069] Additionally, during the anti-drip process, when the wiping assembly 22 moves below the injection end 11, the adsorbent 224 can come into contact with the injection end 11, allowing residual electrolyte to be directly absorbed into the adsorbent 224. Alternatively, the adsorbent 224 can remain out of contact with the injection end 11, so that even if residual electrolyte drips, it will drip onto the adsorbent 224, reducing the chance of dripping onto the battery surface.

[0070] This design, which incorporates the adsorbent 224 and the housing 221, allows the adsorbent 224 to be stably mounted on the mounting component 21, thus facilitating an effective anti-drip effect.

[0071] Optionally, according to some embodiments of this application, please refer to Figure 3 The housing 221 has a receiving cavity 222 inside, and the housing 221 is provided with an opening 223 communicating with the receiving cavity 222. The adsorbent 224 is disposed inside the receiving cavity 222 and partially extends out of the opening 223.

[0072] The adsorbent 224 is disposed within the receiving cavity 222, so that the receiving cavity 222 can receive the electrolyte in the adsorbent 224. When the adsorbent 224 is under pressure or saturated with electrolyte, the seeping electrolyte can flow into the receiving cavity 222, so that the electrolyte will not drip directly to the outside and cause pollution.

[0073] Meanwhile, part of the adsorbent 224 can extend through the opening 223, so that when the wiping assembly 22 moves to below the injection end 11, the adsorbent 224 can better receive the dripping electrolyte; or, it can better contact the injection end 11 to adsorb residual electrolyte.

[0074] The adsorbent 224 can be installed in the receiving cavity 222 in various ways, such as, but not limited to, snap-fit, adhesive, bolt connection, etc.

[0075] This design introduces a receiving cavity 222, which allows the electrolyte that seeps out when the adsorbent 224 is under pressure or saturated with electrolyte to flow into the receiving cavity 222, reducing the chance of electrolyte dripping directly to the outside and causing pollution.

[0076] According to some embodiments of this application, this application provides a battery production system, which includes the battery liquid injection device of any of the above.

[0077] According to some embodiments of this application, please refer to Figures 1 to 3 This application provides a battery electrolyte filling device, which includes an filling body 10, a wiping assembly 22, a mounting member 21, a pull cable 241, and a pull ring 242. One end of the mounting member 21 is rotatably connected to the filling body 10, and the wiping assembly 22 is connected to the other end of the mounting member 21. One end of the pull cable 241 is connected to the pull ring 242, and the other end is connected to the mounting member 21. Before filling, the mounting member 21 can be rotated by pulling the pull ring 242, causing the wiping assembly 22 to rotate away from below the filling end 11; after filling, the pull ring 242 is released, the mounting member 21 rotates back, and the wiping assembly 22 is positioned below the filling end 11 again. The wiping assembly 22 can absorb residual electrolyte on the filling end 11.

[0078] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A battery electrolyte filling device, characterized in that, The battery electrolyte filling device includes: The liquid injection body (10) has a liquid injection end (11) at one end along the preset direction (X); The wiping mechanism (20) includes a wiping assembly (22) and a mounting member (21) connected to the wiping assembly (22). The mounting member (21) is movably disposed on the liquid injection body (10). When the mounting member (21) is configured to move relative to the liquid injection body (10), the wiping assembly (22) can move to below the liquid injection end (11) or below the liquid injection end (11) in a direction intersecting with the preset direction (X). The wiping assembly (22) is used to adsorb the electrolyte on the liquid injection end (11). One end of the mounting component (21) is rotatably connected to the liquid injection body (10), and the other end is connected to the wiping assembly (22). When the mounting component (21) rotates, the wiping assembly (22) rotates to or away from the liquid injection end (11) below.

2. The battery electrolyte injection device according to claim 1, characterized in that, The wiping mechanism (20) also includes a movable plug (23), which is rotatably connected to the liquid injection body (10), and one end of the mounting member (21) is connected to the movable plug (23).

3. The battery electrolyte injection device according to claim 1, characterized in that, The wiping mechanism (20) further includes an operating element (24), which is connected to the wiping assembly (22) or the mounting element (21).

4. The battery electrolyte injection device according to claim 3, characterized in that, The operating component (24) includes a pull cord (241) and a pull ring (242). One end of the pull cord (241) is connected to the wiping assembly (22) or the mounting component (21), and the other end is connected to the pull ring (242).

5. The battery electrolyte injection device according to claim 4, characterized in that, The battery injection device also includes a fixing seat (14), which is located on the injection body (10). The fixing seat (14) has a through hole (141) through it. One end of the pull wire (241) passes through the through hole (141), and the pull ring (242) is located on the side of the fixing seat (14) away from the injection end (11).

6. The battery electrolyte injection device according to claim 5, characterized in that, The injection body (10) includes a first component (12) and a second component (13) connected to the first component (12). The end of the second component (13) away from the first component (12) includes the injection end (11). The fixing seat (14) is connected to the end of the first component (12) away from the second component (13). The mounting member (21) is movably connected to the first component (12).

7. The battery electrolyte injection device according to claim 6, characterized in that, The circumferential edge of the fixing seat (14) protrudes out of the first component (12) along the direction intersecting with the preset direction (X), and the portion of the fixing seat (14) protruding out of the first component (12) is provided with the through hole (141) along the preset direction (X).

8. The battery electrolyte filling device according to any one of claims 1-7, characterized in that, The wiping assembly (22) includes a housing (221) and an adsorbent (224) disposed on the housing (221). The housing (221) is connected to the mounting member (21), and the adsorbent (224) is used to adsorb the electrolyte of the injection end (11).

9. The battery electrolyte filling device according to claim 8, characterized in that, The housing (221) has a receiving cavity (222) and the housing (221) has an opening (223) communicating with the receiving cavity (222). The adsorbent (224) is located in the receiving cavity (222) and partially extends out of the opening (223).

10. A battery production system, characterized in that, The battery production system includes the battery electrolyte injection device according to any one of claims 1-9.

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