Miniature lithium battery vacuum drying and exhaust device

Abstract

This utility model discloses a miniature lithium battery vacuum drying and exhaust device, including a base, a frame mounted on the top of the base, and a vacuum assembly for lithium battery vacuum drying installed inside the frame. The vacuum assembly includes a fixed frame located inside the frame, with guide rods on both the left and right sides inside the fixed frame. A telescopic cylinder is installed at the center of the top of the fixed frame, positioned between the guide rods. This utility model effectively reduces vibration and shaking during equipment operation through the cooperation of these three components, lowering the risk of failure due to structural loosening. The guide rods on the left and right sides further enhance this stability, providing precise guidance trajectories for the movement of related components, avoiding problems such as offset or skew during component movement, making the entire operation more stable and reliable. At the same time, the presence of the guide rods ensures the linearity and accuracy of the telescopic cylinder's driven component movement, reducing unnecessary friction and energy loss, making the cylinder's telescopic action smoother and more efficient.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery vacuum drying and exhaust technology, specifically a micro lithium battery vacuum drying and exhaust device. Background Technology

[0002] As a small-sized energy storage device with high energy density, micro lithium batteries have shown irreplaceable application value in consumer electronics, IoT devices, medical implants, smart wearables and other fields. In the production process of micro lithium batteries, vacuum drying and degassing is one of the key steps. Its core purpose is to remove moisture and gas from the electrode materials, separator and battery casing to ensure the safety, cycle life and electrochemical performance of the battery.

[0003] Existing lithium battery vacuum drying and degassing devices rely on manual pressing or sealing during the degassing process, which makes it difficult to guarantee uniform and stable pressure. Differences in human operation can easily lead to unstable sealing pressure and operating speed, which in turn affects the consistency of key process parameters such as vacuum degree and drying time, ultimately resulting in fluctuations in the quality of lithium battery products. Utility Model Content

[0004] The purpose of this invention is to provide a micro lithium battery vacuum drying and exhaust device, which has the advantage of stable operation and solves the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A miniature lithium battery vacuum drying and exhaust device includes a base, a frame mounted on the top of the base, and a vacuum assembly for vacuum drying of lithium batteries installed inside the frame. The vacuum assembly includes a fixed frame, which is located inside the frame. Guide rods are provided on both the left and right sides inside the fixed frame. A telescopic cylinder is installed at the middle position of the top of the fixed frame and is located between the guide rods.

[0007] Preferably, the output end of the telescopic cylinder is connected to a top plate, and the top plate is slidably connected to the outside of the guide rod, with a protective shell provided at the bottom end of the top plate.

[0008] It is worth noting that: the telescopic cylinder drives the top plate to slide stably along the guide rod, which can precisely control the raising and lowering of the protective shell, realize the sealing or opening of the drying chamber, and ensure the reliability of the vacuum environment; the guide rod ensures the smooth movement of the top plate, avoids sealing failure caused by deviation, and improves the operational stability of the device; the protective shell can provide physical protection for the internally dried lithium battery and reduce external environmental interference.

[0009] Preferably, the top plate and the protective shell are snapped together on both sides, a support is installed at the bottom of the fixing frame, and the protective shell is set at the top of the support.

[0010] It is worth noting that the snap-fit ​​fastener can quickly fix the top plate and the protective shell, enhancing the sealing and firmness of the connection between the two and preventing loosening due to pressure difference under vacuum conditions; the support provides stable support for the protective shell, ensuring the docking accuracy between the protective shell and the drying chamber, further improving the vacuum sealing effect, and at the same time facilitating the positioning, installation, disassembly and maintenance of the protective shell.

[0011] Preferably, an exhaust pipe is connected to the middle position of the bottom end of the fixing frame, and the air inlet end of the exhaust pipe is located inside the support.

[0012] It is worth noting that the exhaust pipe is directly connected to the inside of the support, which can efficiently discharge the water vapor, electrolyte volatiles and other gases generated during the drying process, and avoid the gas residue in the cavity from affecting the drying effect; the exhaust pipe is located in the middle position, which can evenly draw gas, ensure uniform pressure distribution in the cavity, and improve the consistency of vacuum drying, which is especially suitable for the small volume and high precision drying needs of micro lithium batteries.

[0013] Preferably, a protective tube is provided above the outer side of the guide rod, and the protective tube is mounted on the fixing frame.

[0014] It is worth noting that the protective tube protects the area above the guide rod, preventing dust and impurities from adhering to the surface of the guide rod or entering the sliding gap, thus avoiding affecting the sliding accuracy and service life of the top plate; at the same time, it can reduce accidental collisions between external objects and the guide rod, protect the core moving parts, and extend the maintenance cycle of the device.

[0015] Preferably, a support frame is installed at the bottom of the base, a vacuum pump is installed at the top of the support frame, and the output end of the vacuum pump is located inside the support.

[0016] It is worth noting that: the support frame provides stable support for the vacuum pump, reducing the impact of vibration during vacuum pump operation on other components of the device and reducing noise; the vacuum pump is directly connected to the inside of the support, shortening the vacuuming path, reducing pipeline resistance, improving vacuum extraction efficiency, quickly reaching the required vacuum level, shortening drying time, and improving the production efficiency of micro lithium batteries.

[0017] Preferably, a base frame is installed at the bottom of the base, and base plates are provided at the four corners of the bottom of the base frame, with casters installed on the base plates.

[0018] It is worth noting that: the base frame and base plate enhance the overall structural stability of the device and distribute the weight to prevent base deformation; the casters facilitate flexible movement of the device and allow the equipment position to be adjusted according to production needs, making it particularly suitable for space layout optimization in scenarios such as laboratories and small production lines; the casters distributed at the four corners ensure balance during movement and prevent tipping.

[0019] Preferably, the front end of the frame is provided with a glass door, a display screen is installed in the middle of the front end of the frame, and a protective door is hinged to the front end of the base.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] When the telescopic cylinder of this utility model is activated, the top plate connected to its output end slides downward along the guide rod. The cooperation of these three components effectively reduces vibration and shaking during equipment operation, lowering the risk of failure due to structural loosening. The guide rods on the left and right sides further enhance this stability, providing precise guiding trajectories for the movement of related components, avoiding problems such as offset or skew during movement, making the entire operation process more stable and reliable. At the same time, the presence of the guide rods ensures the linearity and accuracy of the telescopic cylinder's driven component movement, reducing unnecessary friction and energy loss, and making the cylinder's telescopic action smoother and more efficient. Attached Figure Description

[0022] Figure 1 This is an isometric view of the overall structure of this utility model;

[0023] Figure 2 This is a cross-sectional view of the cleaning device of this utility model;

[0024] Figure 3 This is a second schematic perspective view of the drying and exhaust device of this utility model;

[0025] Figure 4 This is a first isometric view of the vacuum assembly of this utility model;

[0026] Figure 5 This is a second isometric view of the vacuum assembly of this utility model.

[0027] Figure label:

[0028] 1. Base; 2. Frame; 3. Base frame; 401. Fixing frame; 402. Guide rod; 403. Telescopic cylinder; 404. Top plate; 405. Protective shell; 406. Snap-fit ​​buckle; 407. Support; 408. Exhaust pipe; 409. Protective pipe; 410. Stand; 411. Vacuum pump; 5. Base plate; 6. Casters; 7. Glass door; 8. Display screen; 9. Protective door. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] To address the problem of ensuring uniform and stable pressure in existing technologies, the following technical solution is proposed. Please refer to [link / reference]. Figures 1-5 ;

[0031] A miniature lithium battery vacuum drying and exhaust device includes a base 1, a frame 2 mounted on the top of the base 1, and a vacuum assembly for vacuum drying of lithium batteries installed inside the frame 2. The vacuum assembly includes a fixing frame 401, which is located inside the frame 2. Guide rods 402 are provided on both the left and right sides inside the fixing frame 401. A telescopic cylinder 403 is installed at the middle position of the top of the fixing frame 401 and is positioned between the guide rods 402. A base frame 3 is mounted on the bottom of the base 1, and base plates 5 are provided at the four corners of the bottom of the base frame 3. Casters 6 are mounted on the base plates 5. A glass door 7 is provided at the front end of the frame 2, and a display screen 8 is installed at the middle position of the front end of the frame 2. A protective door 9 is hinged to the front end of the base 1.

[0032] The output end of the telescopic cylinder 403 is connected to a top plate 404, and the top plate 404 is slidably connected to the outside of the guide rod 402. A protective shell 405 is provided at the bottom end of the top plate 404. The top plate 404 and the protective shell 405 are snapped together with snap fasteners 406 on both sides. A support 407 is installed at the bottom end of the fixing frame 401, and the protective shell 405 is located at the top of the support 407. An exhaust pipe 408 is connected to the middle position of the bottom end of the fixing frame 401, and the air inlet end of the exhaust pipe 408 is located inside the support 407. A protective pipe 409 is provided above the outside of the guide rod 402, and the protective pipe 409 is located on the fixing frame 401. A stand 410 is installed at the bottom end inside the base 1, and a vacuum pump 411 is installed at the top end of the stand 410. The output end of the vacuum pump 411 is located inside the support 407.

[0033] The snap-fit ​​fastener 406 facilitates easy installation and disassembly, allowing for convenient maintenance and repair of internal components. It also enhances the seal between the top plate 404 and the protective shell 405, reducing gas leakage during vacuum drying and ensuring optimal drying performance. A support 407 is mounted at the bottom of the mounting bracket 401, with the protective shell 405 positioned at the top. The support 407 provides a stable foundation for the protective shell 405, preventing displacement during operation and ensuring the overall stability of the device. Simultaneously, the exhaust pipe 408, connected to the middle of the bottom of the mounting bracket 401, has its inlet located inside the support 407, efficiently venting gas from the support 407 and the protective shell 405, thus maintaining a secure vacuum environment. The protective tube 409, located on the upper outer side of the guide rod 402 and mounted on the fixed frame 401, provides excellent protection for the upper part of the guide rod 402. This effectively prevents external dust and impurities from entering the sliding connection between the guide rod 402 and the top plate 404, reducing wear and extending the service life of the device. Meanwhile, a vacuum pump 411 is mounted on the top of a stand 410 installed at the bottom of the base 1, with its output end connected to the support 407. The stand 410 provides a stable mounting platform for the vacuum pump 411, ensuring its stable operation and providing sufficient power for the vacuum drying and exhaust of the entire device, further guaranteeing its efficient operation.

[0034] Working principle: Open the glass door 7 at the front of the frame 2, place the micro lithium battery to be dried onto the support 407 installed at the bottom of the fixed frame 401, and close the glass door 7 after placement; the vacuum pump 411 at the top of the upright frame 410 installed at the bottom inside the base 1 starts to work. The upright frame 410 provides a stable mounting platform for the vacuum pump 411, ensuring its stable operation. The output end of the vacuum pump 411 is connected to the support 407, providing sufficient power for the vacuum drying exhaust of the device. At the same time, the telescopic cylinder 403 installed between the guide rods 402 at the middle position of the top of the fixed frame 401 is activated. The top plate 404 connected to its output end slides downward along the guide rod 402. The protective tube 409, installed on the upper outer side of the guide rod 402 and mounted on the fixing frame 401, protects the upper part of the guide rod 402, effectively preventing external dust and impurities from entering the sliding connection between the guide rod 402 and the top plate 404, reducing wear. As the top plate 404 moves downward, the protective shell 405 at the bottom of the top plate 404 gradually approaches the support 407, and finally the protective shell 405 covers the top of the support 407, sealing the lithium battery in the space formed by the protective shell 405 and the support 407. The top plate 404 and the protective shell 405 are snapped together on both sides by snap-fit ​​buckles 406, which not only facilitates installation and disassembly and subsequent maintenance and repair, but also enhances the sealing between them, reducing gas leakage during vacuum drying. Under the action of the vacuum pump 411, the gas in the sealed space formed by the protective shell 405 and the support 407 is extracted. The exhaust pipe 408, connected to the middle of the bottom of the mounting bracket 401, has its air inlet located inside the support 407. This allows for efficient exhaust of gas from the support 407 and the protective shell 405, ensuring the formation and maintenance of a vacuum environment for vacuum drying of the micro lithium battery. During the drying process, staff can observe the internal conditions through the glass door 7 and monitor the device's operating parameters in real time via the display screen 8. After drying, the telescopic cylinder 403 moves the top plate 404 and the protective shell 405 upwards along the guide rod 402, the vacuum pump 411 stops working, and the dried lithium battery is removed by opening the glass door 7.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A vacuum drying and exhausting device for mini lithium batteries, comprising a base (1), characterized in that, A frame (2) is installed at the top of the base (1). A vacuum assembly for vacuum drying of lithium batteries is installed inside the frame (2). The vacuum assembly includes a fixed frame (401). The fixed frame (401) is located inside the frame (2). Guide rods (402) are provided on both the left and right sides inside the fixed frame (401). A telescopic cylinder (403) is installed at the middle position of the top of the fixed frame (401), and the telescopic cylinder (403) is located between the guide rods (402).

2. The vacuum drying and exhausting apparatus for a micro lithium battery according to claim 1, wherein The output end of the telescopic cylinder (403) is connected to a top plate (404), and the top plate (404) is slidably connected to the outside of the guide rod (402). A protective shell (405) is provided at the bottom end of the top plate (404).

3. The vacuum drying and degassing apparatus for a micro lithium battery according to claim 2, wherein The top plate (404) and the protective shell (405) are snapped together with snap fasteners (406) on both sides. The bottom end of the fixing frame (401) is equipped with a support (407), and the protective shell (405) is set at the top of the support (407).

4. The vacuum drying and degassing apparatus for a micro lithium battery according to claim 1, wherein An exhaust pipe (408) is connected to the middle position of the bottom end of the fixed frame (401), and the air inlet end of the exhaust pipe (408) is located inside the support (407).

5. The vacuum drying and degassing apparatus for a micro lithium battery according to claim 4, wherein A protective tube (409) is provided above the outer side of the guide rod (402), and the protective tube (409) is mounted on the fixing frame (401).

6. The vacuum drying and degassing apparatus for a micro lithium battery according to claim 5, wherein The bottom of the base (1) is equipped with a support frame (410), and the top of the support frame (410) is equipped with a vacuum pump (411), and the output end of the vacuum pump (411) is located inside the support (407).

7. The vacuum drying and degassing apparatus for a micro lithium battery according to claim 1, wherein The base (1) is equipped with a base frame (3) at the bottom end, and base plates (5) are provided at the four corners of the bottom end of the base frame (3). Casters (6) are installed on the base plates (5).

8. The vacuum drying and degassing apparatus for a micro lithium battery according to claim 7, wherein The front end of the frame (2) is provided with a glass door (7), the middle position of the front end of the frame (2) is provided with a display screen (8), and the front end of the base (1) is hinged to a protective door (9).

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