A battery electrolyte filling and metering mechanism
By designing a buffer mechanism and a servo motor-controlled electrolyte injection metering mechanism, the problem of battery damage caused by traditional electrolyte injection methods has been solved, achieving stable and precise electrolyte injection, and improving battery life and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG ONE PLUS ONE NEW ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional electrolyte injection methods lack effective buffering and stabilization mechanisms, which may damage the battery and affect its lifespan.
A battery electrolyte filling and metering mechanism was designed, which includes a buffer mechanism, an injection mechanism, and a drive mechanism. The buffer spring plays a buffering role during the injection process, the servo motor precisely controls the injection volume, and the storage tank ensures continuous supply of electrolyte, thus ensuring the stability and accuracy of the injection process.
It reduces the impact force during the electrolyte injection process, avoids battery damage, improves battery life and production efficiency, and ensures the accuracy of electrolyte injection and the consistency of battery performance.
Smart Images
Figure CN224472660U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of battery production equipment, and in particular relates to a battery electrolyte filling and measuring mechanism. Background Technology
[0002] Electrolyte injection is a crucial step in battery manufacturing. Traditional electrolyte injection methods have problems; for example, the lack of effective buffering and stabilization mechanisms during injection can damage the battery and affect its lifespan. Utility Model Content
[0003] The purpose of this invention is to provide a battery electrolyte filling and metering mechanism, which aims to solve the technical problem in the prior art of lacking an effective buffering and stabilizing mechanism, which may damage the battery and affect its service life.
[0004] To achieve the above objectives, the battery electrolyte filling and metering mechanism provided in this utility model embodiment includes a base frame, a buffer mechanism, an injection mechanism, a drive mechanism, and a control console. The buffer mechanism is connected to the base frame, the injection mechanism is connected to the drive mechanism and the buffer mechanism respectively, the drive mechanism is connected to the buffer mechanism, and the control console is connected to the base frame and disposed on one side of the buffer mechanism.
[0005] The buffer mechanism includes a buffer guide rod, a buffer limiting ring, an elastic buffer member, and a buffer guide plate. One end of the buffer guide rod is connected to the base frame, and the other end is connected to the drive mechanism. The buffer limiting ring is connected to the outside of the buffer guide rod. The elastic buffer member is movably sleeved on the outside of the buffer guide rod. One end of the elastic buffer member abuts against the buffer limiting ring, and the other end abuts against the buffer guide plate.
[0006] The injection mechanism includes an injection needle, an injection cylinder, and an injection piston. The injection needle is connected to the bottom end of the injection cylinder, the injection cylinder is fixedly inserted through the buffer guide plate, and the injection piston is slidably connected inside the injection cylinder.
[0007] The drive mechanism includes a motor plate, a servo motor, a motor shaft, a coupling, a screw, and a nut. The motor plate is connected to the buffer guide rod, the motor shaft is connected to the servo motor, the coupling is connected to the motor shaft and the screw respectively, the nut is threaded to the screw, the nut is movably disposed in the injection cylinder and connected to the injection piston; the control console is electrically connected to the servo motor.
[0008] As an optional solution of this utility model, a liquid storage tank is fixedly connected to the side of the injection cylinder, and one end of the liquid storage tank is connected to the injection cylinder.
[0009] As an optional solution of this utility model, there are three buffer guide rods, which are arranged in parallel and at intervals, and there are correspondingly three buffer limiting rings and elastic buffer components.
[0010] As an optional solution of this utility model, the elastic buffer is a buffer spring, one end of which abuts against the buffer limiting ring and the other end of which abuts against the buffer guide plate.
[0011] As an optional solution of this utility model, the diameter of the injection needle is 0.5-1.2mm.
[0012] As an optional solution of this utility model, the material of the injection cylinder is a corrosion-resistant metal alloy.
[0013] The battery electrolyte filling and metering mechanism provided in this embodiment of the present invention has at least one of the following technical effects:
[0014] The electrolyte filling and metering mechanism provided in this application can play a buffering role during the electrolyte filling process through the buffer spring in the buffer mechanism, thereby reducing the impact force on the battery during electrolyte filling, avoiding damage to the battery, and improving the battery's service life. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 A perspective view of the battery electrolyte filling and metering mechanism provided in an embodiment of this utility model.
[0017] Figure 2 A perspective view of the electrolyte filling and driving mechanism of the battery electrolyte filling and metering mechanism provided in the embodiment of this utility model.
[0018] Figure 3 A side view of the electrolyte filling and metering mechanism of the battery electrolyte filling and metering mechanism provided in this embodiment of the utility model.
[0019] Figure 4 for Figure 3 Sectional view of AA.
[0020] The following are the labeling elements in the figure:
[0021] 1. Base frame; 2. Buffer mechanism; 3. Liquid injection mechanism; 4. Drive mechanism; 5. Control console;
[0022] 21. Buffer guide rod; 22. Buffer limit ring; 23. Buffer spring; 24. Buffer guide plate;
[0023] 31. Injection needle; 32. Injection cylinder; 33. Injection piston; 34. Storage tank;
[0024] 41. Motor board; 42. Servo motor; 43. Motor shaft; 44. Coupling; 45. Screw; 46. Nut. Detailed Implementation
[0025] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.
[0026] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0028] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0029] In one embodiment of this utility model, such as Figures 1-4As shown, a battery electrolyte filling and metering mechanism is provided, including a base frame 1, a buffer mechanism 2, an injection mechanism 3, a drive mechanism 4, and a control console 5. The buffer mechanism 2 is connected to the base frame 1, the injection mechanism 3 is connected to the drive mechanism 4 and the buffer mechanism 2 respectively, the drive mechanism 4 is connected to the buffer mechanism 2, and the control console 5 is connected to the base frame 1 and is located on one side of the buffer mechanism 2.
[0030] The buffer mechanism 2 includes a buffer guide rod 21, a buffer limiting ring 22, an elastic buffer member, and a buffer guide plate 24. One end of the buffer guide rod 21 is connected to the base frame 1, and the other end is connected to the drive mechanism 4. The buffer limiting ring 22 is connected to the outside of the buffer guide rod 21. The elastic buffer member is movably sleeved on the outside of the buffer guide rod 21. One end of the elastic buffer member abuts against the buffer limiting ring 22, and the other end abuts against the buffer guide plate 24.
[0031] The injection mechanism 3 includes an injection needle 31, an injection cylinder 32, and an injection piston 33. The injection needle 31 is connected to the bottom end of the injection cylinder 32. The injection cylinder 32 is fixedly installed in the buffer guide plate 24. The injection piston 33 is slidably connected inside the injection cylinder 32.
[0032] The drive mechanism 4 includes a motor plate 41, a servo motor 42, a motor shaft 43, a coupling 44, a screw 45, and a nut 46. The motor plate 41 is connected to the buffer guide rod 21, the motor shaft 43 is connected to the servo motor 42, the coupling 44 is connected to both the motor shaft 43 and the screw 45, and the nut 46 is threaded onto the screw 45. The nut 46 is movably disposed within the injection cylinder 32 and connected to the injection piston 33. The control console 5 is electrically connected to the servo motor 42.
[0033] The electrolyte filling and metering mechanism provided in this application can play a buffering role during the electrolyte filling process through the buffer spring 23 in the buffer mechanism 2, thereby reducing the impact force on the battery during electrolyte filling, avoiding damage to the battery, and improving the battery's service life.
[0034] The injection process is as follows:
[0035] The servo motor 42 starts and drives the motor shaft 43 to rotate. The rotation of the motor shaft 43 is transmitted to the screw 45 through the coupling 44. Since the screw 45 and the nut 46 are threadedly connected, the rotation of the screw 45 will cause the nut 46 to move linearly along the screw 45.
[0036] The linear movement of the nut 46 on the screw 45 causes the connected injection piston 33 to slide inside the injection cylinder 32. When the injection piston 33 moves toward the injection needle 31, the pressure inside the injection cylinder 32 increases, injecting electrolyte into the battery through the injection needle 31; when the injection piston 33 moves in the opposite direction, it can draw electrolyte from the storage tank 34, preparing for the next injection.
[0037] During the injection process, the buffer mechanism 2 plays a role in buffering and stabilizing. The elastic buffer expands and contracts according to pressure changes during the injection process. When the injection pressure is too high, the elastic buffer is compressed to absorb part of the impact force and avoid damage to the battery; when the pressure decreases, the elastic buffer returns to its original shape, ensuring the smoothness of the injection process. The control console 5 precisely controls the running time and speed of the servo motor 42 according to the preset injection volume, thereby controlling the moving distance and speed of the injection piston 33 to achieve high-precision quantitative injection.
[0038] In another embodiment of this utility model, a storage tank 34 is fixedly connected to the side of the injection cylinder 32, and one end of the storage tank 34 is connected to the injection cylinder 32. In the battery production process, it is often necessary to inject electrolyte into a large number of batteries. If the electrolyte in the injection cylinder 32 is depleted and not replenished in time, the injection process will be interrupted. The presence of the storage tank 34 ensures a continuous supply of electrolyte to the injection cylinder 32. When the injection piston 33 moves in the opposite direction within the injection cylinder 32, a negative pressure is created inside the injection cylinder 32. Under the action of this pressure difference, the electrolyte in the storage tank 34 is drawn into the injection cylinder 32, thus ensuring that the injection process can proceed uninterruptedly and improving production efficiency.
[0039] In another embodiment of this utility model, three buffer guide rods 21 are provided, arranged in parallel and at intervals, and three corresponding buffer limiting rings 22 and elastic buffer members are provided. The three parallel and spaced buffer guide rods 21 can provide support for the entire mechanism from multiple directions. During the injection process, the injection mechanism 3 will generate a certain force. If there are only one or two buffer guide rods 21, it may not be able to effectively balance these forces, which may easily cause the mechanism to shake or deviate. The three buffer guide rods 21 form a stable support structure, which can ensure that the injection mechanism 3 remains stable during operation and avoid affecting the injection accuracy due to shaking.
[0040] In another embodiment of this utility model, the elastic buffer is a buffer spring 23, with one end abutting against the buffer limiting ring 22 and the other end abutting against the buffer guide plate 24. The buffer spring 23 can undergo elastic deformation during impact force transmission, absorbing and dispersing some energy, reducing the impact on the battery, and protecting the battery from damage. The buffer spring 23 can adjust its extension and retraction according to changes in the electrolyte injection pressure. When the electrolyte injection pressure suddenly increases, the spring is compressed to absorb the excess pressure; when the pressure decreases, the spring rebounds to maintain a stable electrolyte injection pressure. This ensures that the electrolyte is injected into the battery at a stable pressure and flow rate, improving injection accuracy and ensuring consistent battery performance.
[0041] In another embodiment of this invention, the diameter of the injection needle 31 is 0.5-1.2 mm, preferably 0.8 mm. The diameter of the injection needle 31 directly affects the outflow rate of the electrolyte. A finer injection needle 31 allows the electrolyte to flow out at a relatively stable and smaller flow rate, which is beneficial for precisely controlling the amount of electrolyte injected into the battery each time. During battery production, the amount of electrolyte injected needs to be strictly controlled to ensure the consistency and stability of battery performance. A diameter range of 0.8 mm allows for precise adjustment of the injection flow rate according to the needs of different batteries, thereby ensuring injection accuracy. A diameter of 0.8 mm can minimize injection errors while ensuring injection speed.
[0042] The electrolyte filling and metering mechanism provided in this application can play a buffering role during the electrolyte filling process through the buffer spring 23 in the buffer mechanism 2, thereby reducing the impact force on the battery during electrolyte filling, avoiding damage to the battery, and improving the battery's service life.
[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A battery electrolyte filling and metering mechanism, characterized in that, It includes a base frame, a buffer mechanism, a liquid injection mechanism, a drive mechanism, and a control console. The buffer mechanism is connected to the base frame, the liquid injection mechanism is connected to the drive mechanism and the buffer mechanism respectively, the drive mechanism is connected to the buffer mechanism, and the control console is connected to the base frame and disposed on one side of the buffer mechanism. The buffer mechanism includes a buffer guide rod, a buffer limiting ring, an elastic buffer member, and a buffer guide plate. One end of the buffer guide rod is connected to the base frame, and the other end is connected to the drive mechanism. The buffer limiting ring is connected to the outside of the buffer guide rod. The elastic buffer member is movably sleeved on the outside of the buffer guide rod. One end of the elastic buffer member abuts against the buffer limiting ring, and the other end abuts against the buffer guide plate. The injection mechanism includes an injection needle, an injection cylinder, and an injection piston. The injection needle is connected to the bottom end of the injection cylinder, the injection cylinder is fixedly inserted through the buffer guide plate, and the injection piston is slidably connected inside the injection cylinder. The drive mechanism includes a motor plate, a servo motor, a motor shaft, a coupling, a screw, and a nut. The motor plate is connected to the buffer guide rod, the motor shaft is connected to the servo motor, the coupling is connected to the motor shaft and the screw respectively, the nut is threaded to the screw, the nut is movably disposed in the injection cylinder and connected to the injection piston; the control console is electrically connected to the servo motor.
2. The battery electrolyte filling and metering mechanism according to claim 1, characterized in that, A liquid storage tank is fixedly connected to the side of the injection cylinder, and one end of the liquid storage tank is connected to the injection cylinder.
3. The battery electrolyte filling and metering mechanism according to claim 1, characterized in that, The buffer guide rods are provided in three parallel and spaced-apart configurations, and the buffer limit rings and elastic buffer components are provided in three corresponding configurations.
4. The battery electrolyte filling and metering mechanism according to claim 1, characterized in that, The elastic buffer is a buffer spring, with one end of the buffer spring abutting against the buffer limit ring and the other end abutting against the buffer guide plate.
5. The battery electrolyte filling and metering mechanism according to claim 1, characterized in that, The diameter of the injection needle is 0.5-1.2 mm.
6. The battery electrolyte filling and metering mechanism according to claim 1, characterized in that, The injection cylinder is made of a corrosion-resistant metal alloy.