Powder injection apparatus and electrolyte configuration device

Abstract

The application discloses a powder injection equipment and an electrolyte configuration device, and relates to the technical field of batteries. The powder injection equipment comprises a support, a powder injection assembly and a driving mechanism. The powder injection assembly comprises a powder barrel arranged on the support and a powder injection rod arranged in the powder barrel and movable between a first position and a second position. The powder barrel is provided with a powder outlet. The powder injection rod cooperates with the inner wall of the powder barrel to define a first powder outlet channel in communication with the powder outlet in the first position. The powder injection rod cooperates with the inner wall of the powder barrel to define a second powder outlet channel in communication with the powder outlet in the second position. The powder outlet area of the second powder outlet channel is smaller than that of the first powder outlet channel. The driving mechanism is used for driving the powder injection rod to move and switch between the first position and the second position. The application aims to provide a powder injection equipment with high applicability.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a powder injection device and an electrolyte preparation device. Background Technology

[0002] Battery cells include electrolytes, and powder injection equipment is needed for electrolyte preparation. However, current powder injection equipment has low precision and small range, resulting in low applicability. Summary of the Invention

[0003] The main objective of this application is to provide a powder injection device and an electrolyte preparation apparatus, aiming to provide a powder injection device with high applicability.

[0004] This application provides a powder injection device, including a support, a powder injection assembly, and a drive mechanism. The powder injection assembly includes a powder tank disposed on the support and a powder injection rod disposed within the powder tank that can be movably switched between a first position and a second position. The powder tank has a powder outlet. In the first position, the powder injection rod cooperates with the inner wall of the powder tank to define a first powder outlet channel communicating with the powder outlet. In the second position, the powder injection rod cooperates with the inner wall of the powder tank to define a second powder outlet channel communicating with the powder outlet. The powder outlet area of ​​the second powder outlet channel is smaller than that of the first powder outlet channel. The drive mechanism includes a first drive mechanism disposed on the support and a second drive mechanism driven and connected to the first drive mechanism. The second drive mechanism is driven and connected to the powder injection rod. The second drive mechanism is used to drive the powder injection rod to vibrate, and the first drive mechanism is used to drive the second drive mechanism to move and switch the powder injection rod between the first position and the second position.

[0005] In the technical solution of this application embodiment, the powder tank includes a powder injection rod, which can move between a first position and a second position to form a first powder outlet channel and a second powder outlet channel with different powder outlet areas. A smaller powder outlet area allows for more precise control of the powder flow rate, suitable for small-volume powder injection tasks requiring high precision; while a larger powder outlet area is suitable for larger flow rate requirements, increasing the flexibility of the equipment in handling different tasks. Furthermore, the drive mechanism includes a first drive mechanism and a second drive mechanism. The first drive mechanism ensures that the powder injection rod can switch accurately and stably between the two positions, while the second drive mechanism supports vibration, improving the efficiency and quality of the powder injection process. By causing the powder injection rod to vibrate, it can effectively prevent powder blockage or clumping during the powder injection process, ensuring smooth and uniform powder flow, thereby improving the consistency and precision of powder injection. This powder injection device can be applied to various scenarios requiring different powder injection volumes and can simultaneously ensure the powder injection accuracy for different powder injection volumes, thus having higher applicability.

[0006] In some embodiments, the first driving mechanism includes a first driving component and a first movable member, and the second driving mechanism includes a second driving component and a second movable member. The first driving component is disposed on the bracket, the first movable member is drivenly connected to the first driving component, the second driving component is disposed on the first movable member, and the second movable member is drivenly connected to the second driving component. The powder injection rod is drivenly connected to the second movable member. The first driving component is used to drive the first movable member to reciprocate vertically, thereby causing the powder injection rod to move and switch between a first position and a second position. The second driving component is used to drive the second movable member to vibrate. In this embodiment, the first driving component drives the first movable member, the first movable member drives the second driving component, the second driving component drives the second movable member, and the second movable member drives the powder injection rod. This enhances the adaptability of the equipment to different tasks and improves the flexibility and accuracy of operation.

[0007] In some embodiments, the first drive assembly includes a first motor and a first lead screw, and the first movable component is a lead screw slider. The first motor is mounted on the bracket, the first lead screw extends vertically, one end of the first lead screw is driven and connected to the first motor via a coupling, the lead screw slider meshes with the first lead screw, and the second drive assembly is mounted on the lead screw slider. The first motor drives the first lead screw to rotate and drives the lead screw slider to reciprocate along the length of the first lead screw, thereby moving the powder injection rod between a first position and a second position. In this embodiment, the first drive assembly includes a first motor and a first lead screw, and the first movable component includes a lead screw slider to achieve precise position control. The first motor directly drives the first lead screw to rotate via a coupling, thereby driving the lead screw slider to reciprocate along the length of the bracket, ensuring that the powder injection rod can accurately switch between the first position and the second position. This solves the limitations of traditional powder injection equipment in terms of accuracy and range, and also enhances the durability and operational efficiency of the equipment.

[0008] In some embodiments, the second driving component includes a first support frame and a cam motor. The first support frame is mounted on the first movable member, and the cam motor is mounted on the first support frame. The cam motor is driven to connect with the second movable member. The cam motor drives the second movable member to reciprocate vertically, thereby causing the powder injection rod to vibrate vertically. In this embodiment, the cam motor is fixed to the first support frame and directly drives the connecting plate to vibrate up and down, which in turn causes the powder injection rod at its end to vibrate. This improves the efficiency and quality of the powder injection process. By causing the powder injection rod to vibrate, it effectively prevents the powder from clogging or clumping during the injection process, ensuring that the powder flows out smoothly and evenly, thereby improving the consistency and accuracy of the powder injection.

[0009] In some embodiments, the first support frame includes a first connector and a second connector. The first connecting plate is disposed on the first movable member, and the second connecting plate is connected to the first connecting plate. The first connecting plate extends vertically, and the extension direction of the second connecting plate intersects the extension direction of the first connecting plate. In this embodiment, the first connector and the second connector simplify the structure and respectively achieve following movement and support, enabling the second drive component to perform its intended function.

[0010] In some embodiments, the second connector is plate-shaped and has an upper side. The cam motor is located on the upper side of the second connector. A movable through hole is provided on the second connector near the first connector. The second movable member passes through the movable through hole and is driven to connect with the cam motor. In this embodiment, the second movable member is driven to connect to the powder injection rod through the movable through hole. This helps to center the entire structure and avoid both ends being too heavy or too light.

[0011] In some embodiments, the driving mechanism further includes a third driving mechanism disposed on the second movable member and drivenly connected to the powder injection rod; the third driving mechanism is used to drive the powder injection rod to vibrate. In this embodiment, the driving mechanism further includes a third driving mechanism installed on the second movable member and connected to the powder injection rod, used to drive the powder injection rod to vibrate. This improves the efficiency and quality of the powder injection process. By causing the powder injection rod to vibrate, it effectively prevents powder from clogging or clumping during the powder injection process, ensuring smooth and uniform powder flow, thereby improving the consistency and accuracy of powder injection.

[0012] In some embodiments, the third drive mechanism includes a second support frame, a second motor, and a rotating wheel. The second movable member is connected to a first side of the second support frame, and the second motor is mounted on a second side of the second support frame. The second motor is driven by the powder injection rod via the rotating wheel to drive the powder injection rod to vibrate. In this embodiment, the second motor rotates the rotating wheel when it contacts the powder injection rod to achieve vibration, which effectively prevents powder from clogging or clumping during the powder injection process, ensuring smooth and uniform powder flow, thereby improving the consistency and accuracy of powder injection.

[0013] In some embodiments, the powder injection rod has a first recess and a second recess. When the powder injection rod is in a first position, the first recess and the powder outlet define a first powder outlet channel. When the powder injection rod is in a second position, the second recess and the powder outlet define a second powder outlet channel. In this embodiment, by changing the position of the powder injection rod, the structure and size of the powder outlet channel can be adjusted without replacing the hardware, thereby adapting to different flow rates and powder characteristics. For example, when the powder injection rod is in the first position, the first recess and the powder outlet define a larger first powder outlet channel, suitable for larger flow rates or rapid filling requirements. When the powder injection rod is switched to the second position, the second recess and the powder outlet also define a first powder outlet channel, but due to differences in shape or size, it may provide different flow characteristics or finer flow control. This simplifies the equipment structure, reduces maintenance costs, and improves operational efficiency, allowing the same powder injection device to be applied to more types of powder materials and powder injection tasks.

[0014] In some embodiments, the first recess is disposed around the peripheral wall of the powder injection rod. In this embodiment, it can be ensured that the powder can flow out from multiple directions simultaneously, avoiding the uneven flow or blockage problems that may be caused by powder discharge from one side, thereby improving the smoothness of powder flow and enhancing the uniformity of powder injection.

[0015] In some embodiments, the powder injection rod has a main body section and a powder outlet section disposed on the main body section. A first recess and a second recess are disposed on the powder outlet section, such that the cross-sectional area of ​​the powder outlet section is smaller than the cross-sectional area of ​​the main body section. In this embodiment, the smaller cross-sectional area of ​​the powder outlet section compared to the main body section improves the accuracy and efficiency of the powder injection process. By designing a smaller cross-sectional area for the powder outlet section, a locally narrow region can be formed. When powder passes through this region, the flow rate increases, ensuring that the powder flows out more concentratedly and uniformly, avoiding the flow dispersion or unevenness problems that may occur with a large cross-section.

[0016] In some embodiments, the cross-sectional area of ​​the powder outlet section gradually expands from the middle to both ends, and the outer peripheral wall of the powder outlet section is smoothly connected to the outer peripheral wall of the main body section. In this embodiment, the cross-sectional area of ​​the powder outlet section gradually expands from the middle to both ends, and its outer peripheral wall is smoothly connected to the outer peripheral wall of the main body section. This improves the smoothness of powder flow and the stability of the powder injection process. The design of the powder outlet section being narrower in the middle and gradually widening at both ends forms a funnel-like structure, which helps guide the powder to gradually diffuse from a smaller central area to a larger outlet, avoiding uneven flow or clogging problems caused by sudden changes in cross-section.

[0017] In some embodiments, the second recess is a groove provided on the outer peripheral wall of the powder injection rod. In this embodiment, the groove allows the powder injection rod to form different powder outlet channels by cooperating with the powder outlet at different positions, thereby achieving precise adjustment of the powder output and powder output characteristics.

[0018] In some embodiments, the groove extends axially along the powder injection rod, and the powder-passing area of ​​the groove gradually increases from the vertical upper end to the vertical lower end of the powder injection rod. In this embodiment, this ensures that the powder maintains good flowability during the powder dispensing process, reducing the risk of accumulation and clogging. Simultaneously, the axially extending groove design allows the powder injection rod to provide a stable powder dispensing channel throughout its entire length, increasing the effective range for each powder injection operation and adapting to different dispensing requirements. Thus, the function and performance of the powder injection equipment are optimized, meeting diverse and high-precision powder injection needs.

[0019] In some embodiments, the surface enclosed by the cavity contour line of the groove gradually widens from the vertical upper end to the vertical lower end of the powder injection rod, and the depth of the groove gradually deepens from the vertical upper end to the vertical lower end of the powder injection rod. In this embodiment, the powder injection rod can provide a stable powder outlet channel throughout its entire length, increasing the effective range of each powder injection operation and adapting to the needs of different injection volumes.

[0020] In one embodiment, the cavity contour line at the vertical upper end of the groove is curved, and the cavity contour line at the vertical lower end of the groove is also curved. The curvature angle of the cavity contour line at the vertical lower end of the groove is greater than the curvature angle of the cavity contour line at the vertical upper end of the groove. In this embodiment, the powder injection rod can provide a stable powder outlet channel throughout its entire length, increasing the effective range of each powder injection operation and adapting to the needs of different injection volumes.

[0021] In some embodiments, a reset component is provided inside the powder hopper. This reset component is used to reset the powder injection rod when the driving connection between the injection rod and the driving mechanism is disconnected. In this embodiment, the reset component inside the powder hopper ensures accurate reset of the injection rod, enhancing the system's automation level. This is particularly suitable for applications requiring frequent parameter adjustments or high-precision powder injection, and also avoids powder dispensing errors caused by improper reset.

[0022] In some embodiments, the reset component includes a limiting bracket and an elastic component; the limiting bracket includes a housing and a limiting portion disposed on the outer periphery of the housing, the housing is fixed to the inner wall of the powder container through the limiting portion, the housing also has a limiting hole, and the powder injection rod is movably connected to the limiting hole; the elastic component is disposed inside the housing and includes a pressing member, a locking member and an elastic member, the elastic member is sleeved on the powder injection rod, the pressing member is disposed on the powder injection rod, the locking member is disposed on the inner wall of the housing, and the elastic member is disposed between the pressing member and the locking member, and the elastic member, driven by its own elastic force, causes the powder injection rod to be in the initial position;

[0023] When the powder injection rod moves between the first and second positions, the pressing member cooperates with the locking member to compress the elastic member. When the powder injection rod is disconnected from the driving mechanism, the elastic member is released, allowing the powder injection rod to return to the initial position. In this embodiment, the limiting bracket ensures the stability and guidance of the powder injection rod during movement, avoiding errors caused by offset. Secondly, the design of the elastic component realizes an automatic reset function, enabling the powder injection rod to quickly and accurately return to the initial position after completing its task, eliminating accumulated errors and ensuring consistency and accuracy in each operation. Furthermore, the limiting part of the limiting bracket ensures that the powder injection rod will not tilt due to prolonged operation, avoiding affecting the powder dispensing accuracy.

[0024] In some embodiments, the support includes at least one balancing bracket with at least one fixing through hole, and the powder hopper is disposed within the fixing through hole. In this embodiment, the support includes at least one balancing bracket with at least one fixing through hole, and the powder hopper is disposed within these fixing through holes. This improves the stability and accuracy of the powder dispensing equipment. The presence of the balancing bracket ensures that the powder hopper maintains a precise position and orientation throughout the operation, maintaining stable powder dispensing performance even under vibration or external interference during equipment operation.

[0025] In some embodiments, the balance bracket has a fixing part corresponding to the fixed through hole, and the powder bucket has a mating part that cooperates with the fixing part for installation. The powder bucket is fixed to the balance bracket through the mating part and the fixing part. In this embodiment, the balance bracket has a fixing part corresponding to the fixed through hole, and the powder bucket has a mating part that cooperates with it for installation, so that the powder bucket can be firmly fixed to the support frame. This improves the stability and assembly accuracy of the equipment. The precise fit between the fixing part and the mating part ensures the accuracy of the powder bucket's position after installation, reduces powder dispensing errors caused by positional deviations, and thus improves the consistency and reliability of the powder injection process.

[0026] Secondly, this application also provides an electrolyte preparation device, which includes the powder injection equipment as described in any of the above claims.

[0027] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of an embodiment of the powder injection equipment provided in this application;

[0030] Figure 2 for Figure 1 Another perspective view;

[0031] Figure 3 This is a schematic diagram of the structure of an embodiment of the powder injection component provided in this application;

[0032] Figure 4 for Figure 3 Sectional view of AA;

[0033] Figure 5 A schematic diagram of a structure of an embodiment of the powder injection rod and reset component provided in this application;

[0034] Figure 6 for Figure 5 A magnified view of a section at point A in the middle;

[0035] Figure 7 This is a schematic diagram of another embodiment of the powder injection rod and reset component provided in this application.

[0036] Explanation of icon numbers:

[0037] 10. Powder injection equipment;

[0038] 100. Bracket; 110. Balance bracket; 111. Fixing through hole; 112. Fixing part;

[0039] 200. Powder injection assembly; 210. Powder bucket; 211. Powder outlet; 220. Powder injection rod; 221. First recess; 222. Second recess; 223. Main section; 224. Powder outlet section; 230. Fitting part;

[0040] 300. Drive mechanism; 310. First drive mechanism; 311. First drive assembly; 3111. First motor; 3112. First lead screw; 312. First moving part; 3121. Lead screw slider; 320. Second drive mechanism; 321. Second drive assembly; 3211. First support frame; 3212. Structural reinforcement mechanism; 3213. Cam motor; 3214. Movable through hole; 322. Second moving part; 330. Third drive mechanism; 331. Second support frame; 332. Second motor; 333. Rotating wheel;

[0041] 400. Reset component; 410. Limiting bracket; 411. Housing; 412. Limiting part; 420. Elastic component; 421. Pressing component; 422. Locking component; 423. Elastic component.

[0042] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0045] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0046] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0047] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0048] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0049] In the description of the embodiments of this application, the technical terms "middle", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0050] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0051] Currently, judging from market trends, batteries are widely used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in power tools, drones, energy storage devices, and many other fields. As the applications of batteries continue to expand, the market demand is also constantly increasing.

[0052] In some embodiments, the battery can be a battery module, and when there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module.

[0053] In some embodiments, the battery can be a battery pack, which includes a housing and individual battery cells, with the individual battery cells or battery modules housed within the housing.

[0054] In some embodiments, the housing may be part of the vehicle's chassis structure. For example, a portion of the housing may be at least a part of the vehicle's floor, or a portion of the housing may be at least a part of the vehicle's crossbeams and longitudinal beams.

[0055] In some embodiments, the battery can be an energy storage device. Energy storage devices include energy storage containers, energy storage cabinets, etc.

[0056] In some embodiments, the battery cell can be a rechargeable battery, which refers to a battery cell that can be recharged after discharge to activate the active materials and continue to be used. The battery cell can be, but is not limited to, lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-metal hydride batteries, nickel-cadmium batteries, lead-acid batteries, etc.

[0057] As an example, the battery cell can be a cylindrical battery cell, a prismatic battery cell, a pouch battery cell, or a battery cell of other shapes. Prismatic battery cells include prismatic battery cells, blade-shaped battery cells, and multi-prismatic batteries, such as hexagonal prismatic batteries. There are no particular limitations in the embodiments of this application.

[0058] A battery cell is the smallest unit that makes up a battery. Within a battery cell, the electrolyte is a crucial component, playing a vital role in connecting the positive and negative electrodes, conducting ions, and providing the necessary chemical environment. Electrolytes typically consist of a solvent and dissolved salts, such as lithium salts. The quality, composition, concentration, and stability of the electrolyte directly affect the battery's performance, safety, and lifespan.

[0059] Currently, powder injection equipment has limited applicability in electrolyte preparation, primarily due to design and functional limitations. Firstly, existing equipment lacks sufficient precision to meet the fine-tuning requirements of electrolyte preparation, especially when handling trace amounts of powder or high-viscosity liquids. This leads to inaccurate proportions, affecting the performance of the final product. Secondly, the equipment has a limited range, failing to cover powder injection needs from small to large quantities, thus restricting its application in various scenarios. Furthermore, poor flexibility is a key issue; existing equipment may lack the ability to flexibly adjust the size and shape of the powder dispensing channel, making it difficult to adapt to the characteristics of different powder materials (such as particle size, density, and flowability), thereby affecting the injection effect. These factors combined make powder injection equipment inadequate for diverse and sophisticated electrolyte preparation tasks.

[0060] Understandably, the low applicability of powder injection equipment has multiple impacts, the most direct being a decline in product quality. The inability to precisely control the powder injection quantity and uniformity can lead to improper electrolyte mixing, affecting the electrochemical performance of battery cells, shortening their lifespan, and even causing safety hazards. Furthermore, the poor versatility of the design limits the equipment's application range, reducing the flexibility of the production line and its ability to respond to market changes. In conclusion, the low applicability of existing powder injection equipment not only directly impacts product quality but also indirectly increases operating costs and weakens the competitiveness of enterprises.

[0061] Based on the above considerations, in order to solve the problem of low applicability of existing powder injection equipment, this application provides a new powder injection equipment that can achieve wide range and high precision powder injection, thus making the powder injection equipment highly applicable.

[0062] To facilitate a better understanding of this application, the following is in conjunction with the appendix. Figures 1 to 6 The powder injection device 10 in the embodiments of this application will be described in detail.

[0063] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a powder injection device 10 according to some embodiments of this application. The powder injection assembly 200 includes a powder tank 210 disposed on the support 100 and a powder injection rod 220 movable between a first position and a second position disposed within the powder tank 210. The powder tank 210 has a powder outlet 211. In the first position, the powder injection rod 220 cooperates with the inner wall of the powder tank 210 to define a first powder outlet channel communicating with the powder outlet 211. In the second position, the powder injection rod 220 cooperates with the inner wall of the powder tank 210 to define a second powder outlet channel communicating with the powder outlet 211. The powder outlet area of ​​the second powder outlet channel is smaller than that of the first powder outlet channel; the driving mechanism 300 includes a first driving mechanism 310 disposed on the bracket 100 and a second driving mechanism 320 driven and connected to the first driving mechanism 310; the second driving mechanism 320 is driven and connected to the powder injection rod 220, the second driving mechanism 320 is used to drive the powder injection rod 220 to vibrate, and the first driving mechanism 310 is used to drive the second driving mechanism 320 to move and switch the powder injection rod 220 between the first position and the second position.

[0064] Optionally, the bracket 100 may include a first part and a second part, with the first part used to install the drive mechanism 300 and the second part used to install the powder injection assembly 200; or, the bracket 100 may be a single unit, capable of simultaneously installing the drive mechanism 300 and the powder injection assembly 200. It is understood that the bracket 100 in this embodiment includes a first part and a second part, with the first part used to install the drive mechanism 300 and the second part used to install the powder injection assembly 200. The second part may include multiple fixing through holes 111 for installing the powder injection assembly 200. The specific structure of the second part of the bracket 100 can be referred to in subsequent embodiments and will not be described in detail here. Thus, the first and second parts increase the flexibility of the bracket 100's layout, allowing for the individual replacement or adjustment of the drive mechanism 300 or the powder injection assembly 200 without disassembling the entire device, facilitating targeted design without mutual limitations.

[0065] In this embodiment, please refer to Figure 3 and Figure 4 The powder injection assembly 200 includes a powder tank 210 and a powder injection rod 220 disposed in the powder tank 210.

[0066] Optionally, the powder container 210 includes a container body and a lid. The container body includes a first main body and a second main body. The first main body is cylindrical, and the second main body is conical. A bottom plane of the cylinder connects to the bottom plane of the cone to form the powder container 210. Optionally, a powder outlet 211 is located at the tip of the second main body, which can be an opening for discharging powder. Thus, the entire powder container 210 has a structure with a pointed tip as the powder outlet 211, which can guide the flow of the powder (electrolyte), thereby improving powder flowability and increasing powder dispensing efficiency. Additionally, the lid has a mounting hole through which the powder dispensing rod 220 passes, so that a portion of the powder dispensing rod 220 is located inside the container body, and a portion is connected to the drive mechanism 300 through the mounting hole.

[0067] Optionally, the first and second bodies can be connected by flange connection, welding, key connection, bolt connection (including but not limited to the above methods).

[0068] Optionally, the funnel angle of the conical second body is larger than the angle of repose of commonly used powders.

[0069] Alternatively, the barrel body can be made of one or a combination of materials that eliminate static electricity or conduct electricity, such as stainless steel, aluminum-magnesium alloy, or transparent conductive plastic (including plastic coated with conductive coating).

[0070] Understandably, for powders, in addition to combinations of cylindrical and conical shapes, other streamlined designs are also possible to help guide powder flow and reduce the possibility of stagnation and clogging. Furthermore, the materials used for the powders can possess wear-resistant and corrosion-resistant properties, helping to extend the lifespan of the powder dispensing equipment 10 and maintain high precision during long-term use.

[0071] In this embodiment, in the first position, the powder injection rod 220 cooperates with the inner wall of the powder container 210 to define a first powder outlet channel communicating with the powder outlet 211. In the second position, the powder injection rod 220 cooperates with the inner wall of the powder container 210 to define a second powder outlet channel communicating with the powder outlet 211. The powder outlet area of ​​the second powder outlet channel is smaller than that of the first powder outlet channel. Optionally, the powder injection rod 220 may include a main body section 223 and a powder outlet section 224, wherein the powder outlet section 224 has a specific geometry to control the size of the powder outlet channel. The main body section 223 maintains a large cross-section, while the powder outlet section 224 has a smaller cross-sectional area, ensuring that the powder flow is more concentrated and stable. In a feasible embodiment, the powder outlet section 224 may be provided with two recesses of different sizes, so that in the first position, one recess forms the first powder outlet channel with the powder outlet 211 for coarse powdering; and in the second position, the other recess forms the second powder outlet channel with the powder outlet 211 for fine powdering. In another feasible embodiment, the powder dispensing rod 220 may include a plurality of recesses, wherein each recess has a different degree of indentation, so that the shape and / or area of ​​the cross-section of the powder dispensing section 224 varies along the length direction, thereby achieving powder dispensing schemes for different needs.

[0072] It is understood that this embodiment specifies switching between a first position and a second position to achieve the switching between a first powder outlet channel and a second powder outlet channel. However, in practical applications, there may be more than just a first position and a second position, and the powder outlet channels may not be limited to a first powder outlet channel and a second powder outlet channel. In a feasible implementation, the size of the powder outlet channel may be dynamically adjusted according to the position throughout the entire switching process between the first position and the second position, that is, a powder outlet channel of a certain size can be provided at any given time, thereby enhancing the applicability of this powder injection device 10.

[0073] Understandably, please refer to Figure 6Since the powder injection rod 220 has a recess, optionally, the recess is located behind the powder injection rod 220. The cross-sectional area of ​​the powder injection rod 220 can include a V-shaped notch, a U-shaped notch, or a circle (the size of the powder outlet channel is determined by the size of the circle). It should be explained that, in one example, the V-shaped notch can form a larger powder outlet channel when the powder injection rod 220 is in the first position, ensuring smooth powder flow; while the U-shaped notch is suitable for tasks requiring medium flow rates, providing a more stable powder outlet effect. In addition, circular grooves of different diameters can flexibly adjust the powder outlet volume according to actual needs. Small-diameter circular grooves are suitable for high-precision, small-volume powder injection, while large-diameter circular grooves are suitable for applications with larger flow rates.

[0074] Thus, the structure of the powder injection assembly 200 can achieve both coarse and fine injection. It is understood that, in the above embodiment, a portion of the powder injection rod 220 is led out through the cover of the powder tank 210. This portion can be connected to the drive mechanism 300 to drive the powder injection rod 220 so that the powder injection rod 220 can switch between a first position and a second position.

[0075] In this embodiment, please refer to Figure 1 and Figure 2 The driving mechanism 300 includes a first driving mechanism 310 and a second driving mechanism 320. Optionally, the first driving mechanism 310 can drive the powder injection rod 220 to move vertically to control the displacement of the powder injection rod 220 between a first position and a second position, and the second driving mechanism 320 can drive the powder injection rod 220 to vibrate. Optionally, the second driving mechanism 320 is used for reciprocating motion in the vertical direction to tap the powder injection rod 220, wherein the frequency of reciprocating motion is determined according to the actual application. In this way, the first driving mechanism 310 and the second driving mechanism 320 cooperate to achieve full control of the powder injection rod 220. The first driving mechanism 310 is responsible for height adjustment to ensure that the powder injection rod 220 can switch between different vertical positions; while the second driving mechanism 320 is responsible for tapping the powder injection rod 220 to make the powder injection rod 220 vibrate. This ensures the efficiency, accuracy and stability of the powder injection process, and is particularly suitable for application scenarios with high requirements for powder injection quality and consistency, such as the fine powder injection task in the preparation of electrolyte for battery cells.

[0076] It is understood that the first drive mechanism 310 and the second drive mechanism 320 can control the powder injection rod 220 to move in the same direction or in different directions. The drive frequency of the first drive mechanism 310 is lower than that of the second drive mechanism 320. In one feasible embodiment, during powder injection preparation, the first drive mechanism 310 approaches the powder injection rod 220; when powder injection begins, the first drive mechanism 310 presses the powder injection rod 220 to dispense powder, at which point the second drive mechanism 320 starts working to enhance powder dispensing performance.

[0077] The second drive mechanism 320 supports vibration, which improves the efficiency and quality of the powder injection process. By making the powder injection rod 220 vibrate, it can effectively prevent the powder from clogging or clumping during the powder injection process, ensuring that the powder flows out smoothly and evenly, thereby improving the consistency and accuracy of the powder injection. This not only enhances the controllability and accuracy of the powder injection process, but also expands the working range of the equipment.

[0078] In summary, in the technical solution of this application embodiment, the powder tank 210 includes a powder injection rod 220, which can move between a first position and a second position, thereby forming a first powder outlet channel and a second powder outlet channel with different powder outlet areas. A smaller powder outlet area allows for more precise control of the powder flow rate, suitable for small-volume powder injection tasks requiring high precision; while a larger powder outlet area is suitable for larger flow rate requirements, increasing the flexibility of the equipment in handling different tasks. Furthermore, the drive mechanism 300 includes a first drive mechanism 310 and a second drive mechanism 320, ensuring that the powder injection rod 220 can accurately and stably switch between the two positions, while also supporting vibration, improving the efficiency and quality of the powder injection process, and enhancing the controllability and precision of the powder injection process. Thus, the powder injection device 10 can be applied to various scenarios requiring different powder injection volumes, and can simultaneously ensure the powder injection accuracy for different powder injection volumes, thus having higher applicability.

[0079] In one embodiment, please refer to Figure 1 The first driving mechanism 310 includes a first driving component 311 and a first movable component 312. The second driving mechanism 320 includes a second driving component 321 and a second movable component 322. The first driving component 311 is disposed on the bracket 100. The first movable component 312 is drivenly connected to the first driving component 311. The second driving component 321 is disposed on the first movable component 312. The second movable component 322 is drivenly connected to the second driving component 321. The powder injection rod 220 is drivenly connected to the second movable component 322. The first driving component 311 is used to drive the first movable component 312 to reciprocate in the vertical direction, so as to drive the powder injection rod 220 to move and switch between the first position and the second position. The second driving component 321 is used to drive the second movable component 322 to vibrate.

[0080] Understandably, the first drive assembly 311 drives the first movable part 312, the first movable part 312 drives the second drive assembly 321, the second drive assembly 321 drives the second movable part 322, and the second movable part 322 drives the powder injection rod 220; thus, the equipment's adaptability to different tasks is enhanced, and the flexibility and precision of operation are also improved.

[0081] In this embodiment, please refer to Figure 1The first drive assembly 311 includes a first motor 3111 and a first lead screw 3112, and the first movable part 312 is a lead screw slider 3121. The first motor 3111 is disposed on the bracket 100, the first lead screw 3112 extends vertically, one end of the first lead screw 3112 is drivenly connected to the first motor 3111 through a coupling, and the lead screw slider 3121 is engaged with the first lead screw 3112. The second drive assembly 312 is disposed on the lead screw slider. The first motor 3111 is used to drive the first lead screw 3112 and drive the lead screw slider 3121 to reciprocate along the length direction of the bracket 100, so as to drive the powder injection rod 220 to move and switch between the first position and the second position.

[0082] Understandably, since the first lead screw 3112 rotates, driving the lead screw slider 3121, the lead screw slider 3121 must be rotatably limited to achieve vertical displacement along the first lead screw 3112, i.e., it must not rotate. This can be achieved using a rotation limiting component, which can be a slide rail on the bracket for the lead screw slider 3121, or other blocking components, to ensure that the lead screw slider 3121 does not rotate with the first lead screw 3112.

[0083] Understandably, the first drive assembly 311 achieves precise position switching of the powder injection rod 220 through the coordinated operation of the first motor 3111 and the first lead screw 3112. When the system receives a command to change the position of the powder injection rod 220, the first motor 3111 starts and drives the first lead screw 3112 to rotate via the coupling. Since the lead screw slider 3121 (as the first moving part 312) is sleeved on the first lead screw 3112 and fixedly connected to the bracket 100, the rotation of the lead screw is converted into linear reciprocating motion of the lead screw slider 3121 along the length direction of the bracket 100. The lead screw slider 3121 is also connected to the second drive assembly 321, so its movement will drive the entire second drive assembly 321 and the powder injection rod 220 to move together in the vertical direction, thereby achieving precise switching of the powder injection rod 220 between the first position and the second position. This ensures that the powder injection rod 220 can accurately adjust the size and shape of the powder outlet channel as needed, improving the consistency and reliability of the powder injection process, solving the limitations of traditional powder injection equipment 10 in terms of accuracy and range, and also improving the durability and operating efficiency of the equipment.

[0084] In this embodiment, please refer to Figure 1The second drive assembly 321 includes a first support frame 3211 and a cam motor 3213, and the second movable member 322 is a second movable member 322; the first support frame 3211 is connected to the first movable member 312 in a transmission connection, the cam motor 3213 is disposed on the first support frame 3211, the cam motor 3213 is driven connected to one end of the second movable member 322, and the other end of the second movable member 322 is connected to the powder injection rod 220 in a transmission connection; the cam motor 3213 is used to drive the second movable member 322 to reciprocate in the vertical direction, so as to drive the powder injection rod 220 to reciprocate and vibrate in the vertical direction.

[0085] Understandably, please refer to Figure 1 The second drive mechanism 320, through the coordinated operation of the first support frame 3211, the cam motor 3213, and the second movable component 322, drives the powder injection rod 220 to vibrate. When the powder injection rod 220 has been pressed to the corresponding position and powder dispensing is required, the cam motor 3213 starts and drives the second movable component 322 to move up and down repeatedly. The first support frame 3211 is connected to the first drive assembly 311 to ensure its stability and synchronization. One end of the second movable component 322 is driven by the cam motor 3213, while the other end is driven by the powder injection rod 220. Therefore, as the cam motor 3213 drives the second movable component 322 to move up and down repeatedly, the second movable component 322 continuously taps the powder injection rod 220, which is equivalent to causing the powder injection rod 220 to vibrate. This improves the efficiency and quality of the powder injection process. By making the powder injection rod 220 vibrate, it can effectively prevent the powder from clogging or clumping during the injection process, ensuring that the powder flows out smoothly and evenly, thereby improving the consistency and accuracy of the powder injection.

[0086] In one embodiment, the first support frame 3211 includes a first connector and a second connector. The first connecting plate is disposed on the first movable member 312, and the second connecting plate is connected to the first connecting plate. The first connecting plate extends in a vertical direction, and the extension direction of the second connecting plate intersects with the extension direction of the first connecting plate.

[0087] Optionally, the second connector is plate-shaped and has an upper side. The cam motor 3213 is located on the upper side of the second connector. A movable through hole 3214 is provided on the second connector near the first connector. The second movable member passes through the movable through hole 3214 and is driven to connect with the cam motor 3213.

[0088] In one feasible implementation, please refer to Figure 1 and Figure 2The first support frame 3211 is L-shaped. The second connecting plate of the L-shaped first support frame 3211 is horizontally arranged, having an upward-facing first plane and a downward-facing second plane. A movable through hole 3214 is located in the middle of the second connecting plate. A cam motor 3213 is mounted on the first plane of the second connecting plate. A second movable member 322 passes through the movable through hole 3214 and is fixedly connected to the powder injection rod 220 located on the second plane. Thus, the cam motor 3213 can control the second movable member 322 to vibrate the powder injection rod 220. Simultaneously, the first connecting plate of the L-shaped first support frame 3211 is driven by a first drive assembly 311. Optionally, the first drive assembly 311 is driven by a lead screw slider 3121 to drive the first support frame 3211 to reciprocate vertically.

[0089] It is understandable that, since the second movable part 322 is driven and connected to the cam motor 3213, the second movable part 322 has a connecting hole through which the shaft of the cam motor 3213 passes. By designing the shape of the shaft and the shape of the connecting hole, the second movable part 322 can be driven to move up and down repeatedly when the cam motor 3213 is running, so as to achieve shaking.

[0090] Optionally, the second movable part is a plate-shaped movable part.

[0091] Optionally, please refer to Figure 1 A structural reinforcement mechanism 3212 can be provided at the corner of the first support frame 3211, which is adapted to the inner corner of the first support frame 3211, so as to strengthen the structural strength and prevent the structure from collapsing.

[0092] In one embodiment, please refer to Figure 1 and Figure 2 The driving mechanism 300 further includes a third driving mechanism 330, which is disposed on the second movable member 322 and is drivenly connected to the powder injection rod 220. The third driving mechanism 330 is used to drive the powder injection rod 220 to vibrate. This improves the efficiency and quality of the powder injection process. By causing the powder injection rod 220 to vibrate, it effectively prevents powder from clogging or clumping during the injection process, ensuring smooth and uniform powder flow, thereby improving the consistency and accuracy of powder injection.

[0093] In this embodiment, please refer to Figure 1 and Figure 2The second drive assembly 321 includes a first support frame 3211 and a cam motor 3213, and the second movable member 322 is a second movable member 322; the first support frame 3211 is pulverically connected to the first movable member 312, the cam motor 3213 is disposed on the first support frame 3211, the cam motor 3213 is pulverically connected to one end of the second movable member 322, and the other end of the second movable member 322 is pulverically connected to the powder injection rod 220; the first support frame 3211 has a movable through hole 3214 in the middle, and the second... Two movable parts 322 are provided in the movable through hole 3214. The cam motor 3213 is used to drive the second movable part 322 to reciprocate vertically within the movable through hole 3214. The third drive mechanism 330 includes a second support frame 331 and a second motor 332. The first side of the second support frame 331 is connected to the second movable part 322, and the second motor 332 is installed on the second side of the second support frame 331. The second motor 332 is drivenly connected to the powder injection rod 220 to drive the powder injection rod 220 to vibrate.

[0094] The second motor 332 is connected to the powder injection rod via a rotating wheel 333. When the rotating wheel 333 rotates, it causes the powder injection rod to vibrate. Optionally, the outer circumference of the rotating wheel 333 may have an uneven surface. When the rotating wheel 333 contacts and rotates with the powder injection rod 220, it causes the powder injection rod 220 to vibrate.

[0095] In this embodiment, please refer to Figure 2 Since the second movable component 322 is located in the middle of the first support frame 3211, it ensures that the powder injection device 10 will not be unbalanced on the left and right, thus strengthening the structural rigidity of the powder injection device 10. Secondly, the third drive mechanism 330 is located on the second movable component 322, which also avoids a large weight difference between the left and right sides.

[0096] In one feasible embodiment, please refer to Figure 1 and Figure 2The first support frame 3211 is L-shaped. The second connecting plate of the L-shaped first support frame 3211 is horizontally arranged, having an upward-facing first plane and a downward-facing second plane. A movable through hole 3214 is located in the middle of the second connecting plate. A cam motor 3213 is mounted on the first plane of the second connecting plate. A second movable member 322 passes through the movable through hole 3214 and is fixedly connected to the powder injection rod 220 located on the second plane. Thus, the cam motor 3213 can control the second movable member 322 to vibrate the powder injection rod 220. Simultaneously, the first connecting plate of the L-shaped first support frame 3211 is driven by a first drive assembly 311. Optionally, the first drive assembly 311 is driven by a lead screw slider 3121 to drive the first support frame 3211 to reciprocate vertically. It should be noted that the second support frame 331 is also an L-shaped second support frame 331, and the first side of the L-shaped second support frame 331 is connected to the second movable member 322.

[0097] It should be noted that both the second drive mechanism 320 and the third drive mechanism 330 are designed to vibrate the powder injection rod 220. The difference is that the second drive mechanism 320 has a larger vibration amplitude, while the third drive mechanism 330 has a higher vibration frequency. The two complement each other to better prevent the powder from clogging or clumping during the powder injection process.

[0098] In one embodiment, please refer to Figure 6 The powder injection rod 220 has a first recess 221 and a second recess 222. When the powder injection rod 220 is in the first position, the first recess 221 and the powder outlet 211 define the first powder outlet channel. When the powder injection rod 220 is in the second position, the second recess 222 and the powder outlet 211 define the second powder outlet channel.

[0099] In this embodiment, by changing the position of the powder injection rod 220, the structure and size of the powder outlet channel can be adjusted without replacing the hardware, thereby adapting to different flow rates and powder characteristics. For example, when the powder injection rod 220 is in the first position, the first recess 221 and the powder outlet 211 define a larger first powder outlet channel, suitable for larger flow rates or rapid filling requirements; while when the powder injection rod 220 is switched to the second position, the second recess 222 also defines the first powder outlet channel with the powder outlet 211, but due to differences in shape or size, it may provide different flow characteristics or finer flow control. This simplifies the equipment structure, reduces maintenance costs, and improves operational efficiency, allowing the same powder injection device 10 to be applicable to more types of powder materials and powder injection tasks.

[0100] Optionally, the shapes of the first recess 221 and the second recess 222 are not specifically limited here. What is important is that the first recess 221 and the second recess 222 can be on the powder injection rod 220, and the cross-sectional area of ​​the powder injection rod 220 can be different.

[0101] Optionally, please refer to Figure 6 The first recess 221 is arranged around the peripheral wall of the powder injection rod 220. In this way, it can be ensured that the powder can flow out from multiple directions at the same time, avoiding the uneven flow or blockage problems that may be caused by powder injection from one side, thereby improving the smoothness of powder flow and enhancing the uniformity of powder injection.

[0102] Optionally, please refer to Figure 6 The powder injection rod 220 has a main body section 223 and a powder outlet section 224 disposed on the main body section 223. The first recess 221 and the second recess 222 are disposed on the powder outlet section 224, so that the cross-sectional area of ​​the powder outlet section 224 is smaller than the cross-sectional area of ​​the main body section 223. In this way, the cross-sectional area of ​​the powder outlet section 224 is smaller than the cross-sectional area of ​​the main body section 223, which improves the accuracy and efficiency of the powder injection process. By designing the cross-sectional area of ​​the powder outlet section 224 to be smaller, a locally narrow area can be formed. When the powder passes through, the flow rate increases, thereby ensuring that the powder can flow out more concentratedly and evenly, avoiding the flow dispersion or unevenness problems that may be caused by a large cross-section.

[0103] Optionally, please refer to Figure 6 The cross-sectional area of ​​the powder outlet section 224 gradually expands from the middle to both ends, and its outer peripheral wall is smoothly connected to the outer peripheral wall of the main body section 223. This gradual expansion of the cross-sectional area and the smooth transition between its outer peripheral wall and the main body section 223 improve the smoothness of powder flow and the stability of the powder injection process. The narrower middle and wider ends of the powder outlet section 224 create a funnel-like structure, which helps guide the powder to gradually diffuse from a smaller central area to a larger outlet, avoiding uneven flow or blockage caused by sudden changes in cross-section.

[0104] In one embodiment, please refer to Figure 6 The second recess 222 is a groove provided on the outer peripheral wall of the powder injection rod 220. In this embodiment, the groove allows the powder injection rod 220 to form different powder outlet channels by cooperating with the powder outlet 211 at different positions, thereby achieving precise adjustment of the powder output and powder output characteristics.

[0105] Optionally, please refer to Figure 6The groove is specifically a bullet-shaped groove. The unique shape of the bullet-shaped groove helps to optimize the powder flow path, ensuring that the powder can maintain good flowability during the powder discharge process and reducing the risk of accumulation and blockage.

[0106] Optionally, the groove extends axially along the powder injection rod 220, and the powder-passing area of ​​the groove gradually increases from the vertical upper end to the vertical lower end of the powder injection rod 220. This axially extending groove design allows the powder injection rod 220 to provide a stable powder outlet channel throughout its entire length, increasing the effective range for each powder injection operation and adapting to different volume requirements. This optimizes the function and performance of the powder injection device 10, meeting diverse and high-precision powder injection needs. Furthermore, the gradual increase in the powder-passing area of ​​the groove from the vertical upper end to the vertical lower end of the powder injection rod 220 ensures that different positions of the powder injection rod 220 have different powder outlet channels, enhancing its applicability.

[0107] Optionally, the surface enclosed by the cavity contour line of the groove gradually widens from the vertical upper end to the vertical lower end of the powder injection rod 220, and the depth of the groove gradually deepens from the vertical upper end to the vertical lower end of the powder injection rod 220. It is understood that the gradual design allows the groove to have different cross-sectional areas and depths at different height positions, thereby enabling flexible adjustment of the size and shape of the powder dispensing channel. When the powder injection rod 220 is at a higher position, the smaller cross-sectional area and shallower depth help control the powder flow rate, suitable for powder injection tasks requiring fine adjustment; while when the powder injection rod is lowered to a lower position, the larger cross-sectional area and deeper groove allow more powder to pass through, suitable for higher flow rate requirements. This not only improves the equipment's adaptability to different powder injection needs but also ensures the uniformity and stability of powder flow, reducing the risk of clogging.

[0108] Optionally, the cavity contour line at the upper vertical end of the groove is curved, and the cavity contour line at the lower vertical end of the groove is also curved, with the curvature angle of the lower vertical end of the groove being greater than that of the upper vertical end. It is understood that the smaller curvature angle at the upper end of the groove helps to form a more concentrated powder outlet channel, ensuring that the powder flows out in a concentrated manner in the initial stage and avoiding uneven dispersion. As the powder injection rod moves downward, the larger curvature angle at the lower end of the groove gradually expands, forming a wider powder outlet path and increasing the powder outlet area.

[0109] Optionally, the first recess 221 and the second recess 222 can be overlapped. For example, the first recess 221 can surround the peripheral wall of the powder injection rod 220 to form an hourglass-shaped area on the powder injection rod 220, and the second recess 222 can be located in the hourglass-shaped area, or it can be a bullet-shaped groove or a long groove in the hourglass-shaped area. In this way, coarse and fine filling can be achieved. It should be noted that the second recess 222 can be located in the first recess 221 at a position corresponding to a larger cross-sectional area of ​​the powder injection rod 220, such as the coarser part of the hourglass-shaped area. Optionally, the second recess 222 can be located at a position where the cross-sectional shape of the powder injection rod 220 matches the shape of the powder outlet 211. In this way, the fine filling process can be carried out smoothly, and the accuracy of fine filling can also be increased.

[0110] In one embodiment, please refer to Figure 5 and Figure 7 The powder hopper 210 is provided with a reset component 400, which is used to reset the powder injection rod 220 when the driving connection between the powder injection rod 220 and the driving mechanism 300 is disconnected.

[0111] It is understood that the powder container 210 is equipped with a reset component 400. When the powder injection rod 220 returns from the first position or the second position to the initial position, the reset component 400 ensures that the powder injection rod 220 is accurately reset. This enhances the automation level of the system, making it particularly suitable for applications requiring frequent parameter adjustments or high-precision powder injection; it also improves the system's accuracy, avoiding powder dispensing errors caused by improper reset. Furthermore, the reset component 400 ensures that the powder injection rod 220 is in a known and fixed position before each operation begins, thereby eliminating accumulated errors and improving the consistency and accuracy of subsequent powder injection processes. Specifically, the reset component 400 is used to reset the powder injection rod 220 to its initial state. It should be explained that in the initial state, there is no powder dispensing channel. When the drive mechanism 200 drives the powder injection rod 220 to the first position, the second position, or a position between the first and second positions, a powder dispensing channel is formed. When the powder injection rod 220 is in the first position and the second position, it is in a compacted state. Therefore, this reset member 400 can be used to reset the powder injection rod 220 to its initial state after it has been compacted and released.

[0112] The reset component 400 of the powder injection rod 220 can ensure that the powder injection rod 220 has a certain reset capability when it is knocked or driven to vibrate, so as to cooperate with the vibration.

[0113] Understandably, the reset component 400 ensures the smooth operation of the drive mechanism 300, such as the vibration function. If the powder injection rod 220 did not have a reset function, the vibration function achieved by tapping would be impossible. Therefore, the reset component 400 ensures the operation of the drive mechanism 300, and the two complement each other to improve the applicability of the powder injection equipment 10.

[0114] In this embodiment, please refer to Figure 5 and Figure 7 The reset component 400 includes a limiting bracket 410 and an elastic component 420. The limiting bracket 410 includes a housing 411 and a limiting part 412 disposed on the outer periphery of the housing 411. The housing 411 is fixed to the inner wall of the powder container 210 through the limiting part 412. The housing 411 also has a limiting hole, and the powder injection rod 220 is movably connected to the limiting hole. The elastic component 420 is disposed inside the housing 411 and includes a pressing member 421, a locking member 422, and an elastic member 423. The elastic member 423 is sleeved on the powder injection rod 220. 20. The pressing member 421 is disposed on the powder injection rod 220, the locking member 422 is disposed on the inner wall of the housing 411, and the elastic member 423 is disposed between the pressing member 421 and the locking member 422. When the powder injection rod 220 moves in the first position and the second position, the pressing member 421 cooperates with the locking member 422 to compress the elastic member 423. When the powder injection rod 220 is disconnected from the driving mechanism 300, the elastic member 423 is released to reset the powder injection rod 220.

[0115] Understandably, the limiting bracket 410 ensures the stability and guidance of the powder dispensing rod 220 during movement, avoiding errors caused by misalignment. Secondly, the elastic component 420 is designed with an automatic reset function, allowing the powder dispensing rod 220 to quickly and accurately return to its initial position after completing its task, eliminating accumulated errors and ensuring consistency and accuracy in each operation. Furthermore, the limiting part 412 of the limiting bracket 410 ensures that the powder dispensing rod 220 will not tilt due to prolonged operation, preventing any impact on powder dispensing accuracy.

[0116] Optionally, the limiting part 412 can be annular, located on the outer periphery of the housing 411, and fixed to the inner wall of the powder container 210. The limiting part can also be a limiting rod, and there can be multiple limiting rods. In this embodiment, the limiting part 412 consists of multiple limiting rods, specifically three, which are evenly distributed on the outer periphery of the housing 411. It is understood that the even distribution of the three limiting rods helps improve the vibration resistance of the equipment, ensuring the stability of the powder injection rod 220's movement trajectory even during slight vibrations, thereby guaranteeing powder injection accuracy.

[0117] Optionally, the housing 411 in the limiting bracket 410 is a cylindrical housing 411, and the powder injection rod 220 is located behind the housing 411 and can reciprocate along the axial direction of the cylindrical housing 411.

[0118] In one embodiment, please refer to Figure 2 The support 100 includes at least one balancing support 110, the balancing support 110 having at least one fixing through hole 111, and the powder bucket 210 being disposed in the fixing through hole 111.

[0119] In this embodiment, the powder bucket 210 is disposed in the fixing through hole 111 of the balance bracket 110, which improves the stability and accuracy of the powder injection device 10. The presence of the balance bracket 110 ensures that the powder bucket 210 maintains a precise position and posture throughout the operation, and can maintain stable powder output performance even if vibration or external interference occurs during the operation of the device.

[0120] Optionally, the balance support 110 may include multiple fixing through holes 111. When there are multiple fixing through holes 111, multiple powder buckets 210 can be supported, thereby meeting the normal configuration requirements.

[0121] Optionally, the support 100 may include multiple balance supports 110, each balance support 110 having at least one fixing through hole 111, which can support multiple powder buckets 210, thereby meeting normal configuration requirements.

[0122] Optionally, the size of the fixed through hole 111 can be different to accommodate powder buckets 210 of different radii, thereby enhancing the applicability of this powder injection equipment 10.

[0123] In this embodiment, please refer to Figure 2 The balance bracket 110 is provided with a fixing part 112 corresponding to the fixing through hole 111. The powder bucket 210 has a mating part 230 that is installed in conjunction with the fixing part 112. The powder bucket 210 is fixed to the balance bracket 110 through the mating part 230 and the fixing part 112.

[0124] In one feasible embodiment, the fixing part 112 may be a protruding limiting ring surrounding the fixing through hole 111, and the mating part 230 may be a bucket limiting ring provided on the outer wall of the powder bucket 210. The bucket limiting ring of the powder bucket 210 is aligned with the fixing through hole 111 on the support frame and smoothly inserted until the bucket limiting ring and the protruding limiting ring are in relative contact. This effectively prevents the powder bucket 210 from shaking or shifting during operation, especially in the case of multi-axis linkage control, ensuring the precise movement of the powder dispensing rod 220.

[0125] It should be noted that the specific structure of the fixing part 112 and the mating part 230 is not limited here. By selecting the aforementioned protruding limiting ring and bucket limiting ring, the fixing step can be omitted. After the powder bucket 210 is placed in the corresponding position, the protruding limiting ring and bucket limiting ring can be used for shock absorption and anti-displacement. In other structures, such as those using fasteners, the connection can also achieve the effect of shock absorption and anti-displacement, but the installation process is cumbersome and not conducive to efficient operation.

[0126] Therefore, the support frame is provided with a fixing part 112 corresponding to the fixing through hole 111, and the powder bucket 210 has a mating part 230 that cooperates with it, so that the bucket can be firmly fixed on the support frame. In this way, the stability and assembly accuracy of the equipment are improved. The precise fit between the fixing part 112 and the mating part 230 ensures the accuracy of the position of the powder bucket 210 after installation, reduces the powder dispensing error caused by positional deviation, and thus improves the consistency and reliability of the powder injection process.

[0127] It is understandable that, throughout the text, the drive mechanism 200 and the powder injection rod 220 are connected, but not actually connected in the true sense; rather, they are in contact to perform pressing and shaking operations.

[0128] Secondly, this application also provides an electrolyte preparation device, which includes a powder injection device 10. The specific structure of the powder injection device 10 is as described in the above embodiments. Since this electrolyte preparation device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A powder injection device, characterized in that, The powder injection equipment includes: support; The powder injection assembly includes a powder tank disposed on the bracket and a powder injection rod disposed inside the powder tank that can be movably switched between a first position and a second position; The powder container has a powder outlet. When the powder injection rod is in the first position, it cooperates with the inner wall of the powder container to define a first powder outlet channel that communicates with the powder outlet. When the powder injection rod is in the second position, it cooperates with the inner wall of the powder container to define a second powder outlet channel that communicates with the powder outlet. The powder outlet area of ​​the second powder outlet channel is smaller than the powder outlet area of ​​the first powder outlet channel. The driving mechanism includes a first driving mechanism disposed on the bracket and a second driving mechanism drivenly connected to the first driving mechanism; the second driving mechanism is drivenly connected to the powder injection rod. The first driving mechanism is used to drive the second driving mechanism to move and switch the powder injection rod between the first position and the second position; the second driving mechanism is used to drive the powder injection rod to vibrate.

2. The powder injection equipment as described in claim 1, characterized in that, The first driving mechanism includes a first driving component and a first movable component; the second driving mechanism includes a second driving component and a second movable component; the first driving component is disposed on the bracket; the first movable component is drivenly connected to the first driving component; the second driving component is disposed on the first movable component; the second movable component is drivenly connected to the second driving component; the powder injection rod is transmittedly connected to the second movable component. The first driving component is used to drive the first movable part to reciprocate in the vertical direction, so as to drive the powder injection rod to move and switch between the first position and the second position; The second driving component is used to drive the second moving part to vibrate.

3. The powder injection equipment as described in claim 2, characterized in that, The first drive assembly includes a first motor and a first lead screw, and the first movable component is a lead screw slider; the first motor is mounted on the bracket, the first lead screw extends vertically, one end of the first lead screw is driven and connected to the first motor via a coupling, the lead screw slider meshes with the first lead screw, and the second drive assembly is mounted on the lead screw slider; The first motor is used to drive the first lead screw to rotate and drive the lead screw slider to reciprocate along the length direction of the first lead screw, so as to drive the powder injection rod to move and switch between the first position and the second position.

4. The powder injection equipment as described in claim 2, characterized in that, The second drive assembly includes a first support frame and a cam motor. The first support frame is mounted on the first movable member, and the cam motor is mounted on the first support frame. The cam motor is drivenly connected to the second movable member. The cam motor is used to drive the second movable part to reciprocate in the vertical direction, so as to drive the powder injection rod to reciprocate and vibrate in the vertical direction.

5. The powder injection equipment as described in claim 4, characterized in that, The first support frame includes a first connector and a second connector. The first connecting plate is disposed on the first movable member, and the second connecting plate is connected to the first connecting plate. The first connecting plate extends vertically, and the extension direction of the second connecting plate intersects with the extension direction of the first connecting plate.

6. The powder injection equipment as described in claim 5, characterized in that, The second connector is plate-shaped and has an upper side. The cam motor is located on the upper side of the second connector. A movable through hole is provided on the second connector near the first connector. The second movable member passes through the movable through hole and is driven by the cam motor.

7. The powder injection equipment as described in claim 2, characterized in that, The driving mechanism further includes a third driving mechanism, which is disposed on the second movable member and is drivenly connected to the powder injection rod; the third driving mechanism is used to drive the powder injection rod to vibrate.

8. The powder injection equipment as described in claim 7, characterized in that, The third drive mechanism includes a second support frame, a second motor, and a rotating wheel. The second movable part is connected to the first side of the second support frame, and the second motor is installed on the second side of the second support frame. The second motor is driven to the powder injection rod through the rotating wheel to drive the powder injection rod to vibrate.

9. The powder injection equipment according to any one of claims 1 to 8, characterized in that, The powder injection rod has a first recess and a second recess. When the powder injection rod is in the first position, the first recess and the powder outlet define the first powder outlet channel. When the powder injection rod is in the second position, the second recess and the powder outlet define the second powder outlet channel.

10. The powder injection equipment as described in claim 9, characterized in that, The first recess is provided around the peripheral wall of the powder injection rod.

11. The powder injection equipment as described in claim 9, characterized in that, The powder injection rod has a main body section and a powder dispensing section provided on the main body section. The first recess and the second recess are provided on the powder dispensing section so that the cross-sectional area of ​​the powder dispensing section is smaller than the cross-sectional area of ​​the main body section.

12. The powder injection equipment as described in claim 11, characterized in that, The cross-sectional area of ​​the powder outlet section gradually expands from the middle to both ends, and the outer peripheral wall of the powder outlet section is transitionally connected to the outer peripheral wall of the main body section.

13. The powder injection equipment as described in claim 9, characterized in that, The second recess is a groove provided on the outer peripheral wall of the powder injection rod.

14. The powder injection equipment as described in claim 13, characterized in that, The groove extends along the axial direction of the powder injection rod, and the powder-passing area of ​​the groove gradually increases from the vertical upper end to the vertical lower end of the powder injection rod.

15. The powder injection equipment as described in claim 14, characterized in that, The surface enclosed by the cavity outline of the groove gradually expands from the vertical upper end to the vertical lower end of the powder injection rod, and the depth of the groove gradually deepens from the vertical upper end to the vertical lower end of the powder injection rod.

16. The powder injection equipment as described in claim 14, characterized in that, The cavity outline at the vertical upper end of the groove is curved, and the cavity outline at the vertical lower end of the groove is also curved. The curvature angle of the cavity outline at the vertical lower end of the groove is greater than the curvature angle of the cavity outline at the vertical upper end of the groove.

17. The powder injection equipment according to any one of claims 1 to 16, characterized in that, The powder hopper is equipped with a reset component, which is used to reset the powder injection rod when the driving connection between the powder injection rod and the driving mechanism is disconnected.

18. The powder injection equipment as described in claim 17, characterized in that, The reset component includes: The limiting bracket includes a housing and a limiting part disposed on the outer periphery of the housing. The housing is fixed to the inner wall of the powder bucket through the limiting part. The housing also has a limiting hole, and the powder injection rod is movably connected to the limiting hole. An elastic component is disposed within the housing and includes a pressing member, a locking member, and an elastic element. The elastic element is sleeved on the powder injection rod, the pressing member is disposed on the powder injection rod, the locking member is disposed on the inner wall of the housing, and the elastic element is disposed between the pressing member and the locking member. Driven by its own elastic force, the elastic element causes the powder injection rod to be in the initial position. When the powder injection rod moves between the first and second positions, the pressing member cooperates with the locking member to compress the elastic member. When the powder injection rod is disconnected from the driving mechanism, the elastic member is released so that the powder injection rod returns to the initial position.

19. The powder injection equipment according to any one of claims 1 to 18, characterized in that, The support includes at least one balancing support, the balancing support having at least one fixing through hole, and the powder bucket being disposed in the fixing through hole.

20. The powder injection equipment as described in claim 19, characterized in that, The balance bracket is provided with a fixing part corresponding to the position of the fixing through hole, and the powder bucket has a mating part that cooperates with the fixing part for installation. The powder bucket is fixed to the balance bracket through the mating part and the fixing part.

21. An electrolyte preparation device, characterized in that, The electrolyte preparation device includes the powder injection equipment as described in any one of claims 1 to 20.

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