Injection device of electrolyte
By designing an electrolyte injection device, a vacuum pump is used to extract air from the lithium battery and inject electrolyte, solving the pressure balance problem in the traditional filling process and achieving safe and efficient electrolyte filling.
Patent Information
- Application Number
- CN202423036545.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-10
AI Technical Summary
In the traditional process of adding electrolyte to lithium batteries, it is necessary to maintain pressure balance, which makes the operation cumbersome and unsafe.
An electrolyte injection device was designed, comprising a filling tube mechanism and a vacuum pump. The vacuum pump is used to extract air from the lithium battery, and electrolyte is added through the filling tube and connector. The device is then fixed to the lithium battery filling port by a locking mechanism.
It improves the safety and pressure balance of electrolyte filling, simplifies the operation process, and enhances the stability and safety of the filling process.
Smart Images
Figure CN223625187U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrolyte filling technology, and in particular to an electrolyte injection device. Background Technology
[0002] Electrolyte refers to compounds or solutes that can dissociate into ions in a solution. When these compounds dissolve in a solvent, their molecules will separate into charged ions to form an electrolyte solution. Electrolyte is an important component of batteries such as lithium-ion batteries, sodium-ion batteries, and lead-acid batteries, and directly affects the performance and lifespan of the battery.
[0003] In the lithium battery production process, electrolyte needs to be added into the lithium battery. Traditional battery production relies on manual addition of electrolyte. During the addition process, the addition tube is inserted into the filling port of the lithium battery, and then the electrolyte is injected into the lithium battery. Since it is necessary to maintain the pressure balance inside the lithium battery during this process, the addition operation is relatively troublesome and has certain shortcomings. To address this, we propose an electrolyte injection device to assist in adding electrolyte into the lithium battery. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an electrolyte injection device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An electrolyte injection device includes a lithium battery filling port and a filling tube mechanism. A first sealing ring is fixedly sleeved on the lithium battery filling port. The filling tube mechanism passes through the lithium battery filling port and injects electrolyte into the lithium battery. A locking mechanism is installed on the filling tube mechanism, and the filling tube mechanism is installed on the lithium battery filling port through the locking mechanism. A connecting tube is installed on the side of the filling tube mechanism, and a vacuum pump is installed on the connecting tube.
[0007] Preferably, the filling tube mechanism includes a fixed tube inserted into the lithium battery filling port, a second sealing ring fixedly sleeved on the fixed tube, a sealing sleeve fixedly inserted through the top of the fixed tube, a filling tube installed inside the sealing sleeve, the filling tube penetrating the fixed tube, and a connector fixedly attached to the top of the filling tube.
[0008] Preferably, the locking mechanism is fixed to the fixed tube, and the connecting tube is installed on the side of the fixed tube.
[0009] Preferably, the locking mechanism includes a first threaded sleeve fixedly fitted onto a fixed tube, a second threaded sleeve being threadedly connected to the first threaded sleeve, a movable plate being rotatably connected to the second threaded sleeve, a fixed block being fixedly fixed to the bottom of the movable plate, a locking hook being rotatably connected to the fixed block, and a knob being fixedly fitted onto the second threaded sleeve.
[0010] Preferably, the locking hook locks the first sealing ring onto the second sealing ring, and the number of fixing blocks is several groups, which are located at the bottom of the movable plate and are symmetrically distributed.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This invention features a filling tube mechanism that works in conjunction with a connecting tube and a vacuum pump. The vacuum pump extracts air from the lithium battery, allowing electrolyte to be added into the battery through the connector and filling tube. The device has a simple structure and improves safety during electrolyte filling. A locking mechanism secures the filling tube mechanism to the lithium battery filling port, ensuring a tight connection and further enhancing safety during the filling process. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of an electrolyte injection device proposed in this utility model;
[0014] Figure 2 for Figure 1 Front sectional view;
[0015] Figure 3 for Figure 2 Installation diagram of the locking hook.
[0016] In the diagram: 1 Lithium battery filling port, 2 First sealing ring, 3 Filling tube mechanism, 31 Fixing tube, 32 Second sealing ring, 33 Sealing sleeve, 34 Filling tube, 35 Connector, 4 Locking mechanism, 41 First threaded sleeve, 42 Second threaded sleeve, 43 Movable plate, 44 Knob, 45 Fixing block, 46 Locking hook, 5 Connecting tube, 6 Vacuum pump. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0018] Reference Figure 1-3An electrolyte injection device includes a lithium battery filling port 1 and a filling tube mechanism 3. A first sealing ring 2 is fixedly sleeved on the lithium battery filling port 1. The filling tube mechanism 3 penetrates the lithium battery filling port 1 and injects electrolyte into the lithium battery. A locking mechanism 4 is installed on the filling tube mechanism 3. The filling tube mechanism 3 is installed on the lithium battery filling port 1 through the locking mechanism 4. The filling tube mechanism 3 includes a fixed tube 31 inserted into the lithium battery filling port 1. A second sealing ring 32 is fixedly sleeved on the fixed tube 31. A sealing sleeve 33 is fixedly inserted through the top of the fixed tube 31. A filling tube 34 is installed inside the sealing sleeve 33. The filling tube 34 penetrates the fixed tube 31. A connector 35 is fixedly installed at the top of the filling tube 34. The locking mechanism 4 is fixed to the fixed tube 31. A connector 5 is installed on the side of the fixed tube 31. The locking mechanism 4 includes a first threaded sleeve 41 fixedly sleeved on the fixed tube 31. The first threaded sleeve 41 is connected by a threaded... A second threaded sleeve 42 is connected, and a movable plate 43 is rotatably connected to the second threaded sleeve 42. A fixing block 45 is fixed to the bottom of the movable plate 43, and a locking hook 46 is rotatably connected to the fixing block 45. A knob 44 is fixedly sleeved on the second threaded sleeve 42. The locking hook 46 locks the first sealing ring 2 onto the second sealing ring 32. There are several sets of fixing blocks 45, which are located at the bottom of the movable plate 43 and are symmetrically distributed. A connecting pipe 5 is installed on the side of the filling tube mechanism 3, and a vacuum pump 6 is installed on the connecting pipe 5. By setting up the filling tube mechanism in conjunction with the connecting pipe and the vacuum pump, the vacuum pump is used to extract the air in the lithium battery. The electrolyte is added into the lithium battery through the connector and the filling tube. The device has a simple structure and improves the safety of electrolyte filling. At the same time, the locking mechanism is used to fix the filling tube mechanism to the lithium battery filling port, and the device is tightly connected, further improving the safety of the filling process.
[0019] In use, first insert the filling tube mechanism 3 into the lithium battery filling port 1, then pull the locking hook 46 to insert it into the bottom of the first sealing ring 2. Then rotate the knob 44, which drives the second threaded sleeve 42 to rotate. The second threaded sleeve 42 drives the movable plate 43 to move through the thread transmission with the first threaded sleeve 41. The movable plate 43 moves upward through the fixed block 45 and the locking hook 46. The movement of the locking hook 46 makes the first sealing ring 2 and the second sealing ring 32 fit together, improving the stability of the device installation. Then connect the connector 35 to the electrolyte supply device and start the vacuum pump 6. The vacuum pump 6 extracts the air from the lithium battery through the connecting tube 5 and the fixed tube 31. Then add the electrolyte through the connector 35 and the filling tube 34, balancing the pressure during the filling process. The safety of use is very high.
[0020] In summary, compared with the prior art, this utility model, by setting up a filling tube mechanism in conjunction with a connecting tube and a vacuum pump, uses the vacuum pump to extract air from the lithium battery, and the electrolyte is filled into the lithium battery through the connector and filling tube. The device has a simple structure and improves the safety of electrolyte filling. At the same time, the locking mechanism fixes the filling tube mechanism to the lithium battery filling port, and the device is tightly connected, further improving the safety of the filling process.
[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An electrolyte injection device, comprising a lithium battery filling port (1) and a filling tube mechanism (3), characterized in that, A first sealing ring (2) is fixedly sleeved on the lithium battery filling port (1). The filling tube mechanism (3) penetrates the lithium battery filling port (1) and fills the lithium battery with electrolyte. A locking mechanism (4) is installed on the filling tube mechanism (3). The filling tube mechanism (3) is installed on the lithium battery filling port (1) through the locking mechanism (4). A connecting tube (5) is installed on the side of the filling tube mechanism (3). A vacuum pump (6) is installed on the connecting tube (5).
2. The electrolyte injection device according to claim 1, characterized in that, The filling tube mechanism (3) includes a fixed tube (31) inserted into the lithium battery filling port (1), a second sealing ring (32) is fixedly sleeved on the fixed tube (31), a sealing sleeve (33) is fixedly inserted through the top of the fixed tube (31), a filling tube (34) is installed inside the sealing sleeve (33), the filling tube (34) passes through the fixed tube (31), and a connector (35) is fixedly attached to the top of the filling tube (34).
3. The electrolyte injection device according to claim 2, characterized in that, The locking mechanism (4) is fixed on the fixed tube (31), and the connecting tube (5) is installed on the side of the fixed tube (31).
4. The electrolyte injection device according to claim 3, characterized in that, The locking mechanism (4) includes a first threaded sleeve (41) fixedly sleeved on the fixed tube (31), a second threaded sleeve (42) connected to the first threaded sleeve (41) by threads, a movable plate (43) rotatably connected to the second threaded sleeve (42), a fixed block (45) fixed to the bottom of the movable plate (43), a locking hook (46) rotatably connected to the fixed block (45), and a knob (44) fixedly sleeved on the second threaded sleeve (42).
5. The electrolyte injection device according to claim 4, characterized in that, The locking hook (46) locks the first sealing ring (2) onto the second sealing ring (32). The number of fixing blocks (45) is several groups, and the several groups of fixing blocks (45) are located at the bottom of the movable plate (43) and are symmetrically distributed.