A lithium ion battery needle detection device

Abstract

The utility model provides a kind of lithium ion battery needle detection device, it is related to lithium ion battery detection technical field, including box, detection component, moving component, two fixed components and two clamps, detection component top and box top wall fixed connection, moving component one end and box bottom fixed connection, two fixed component bottom respectively moving component top fixed connection, two fixed component surface activity connection in the through -hole inner wall that two clamps bottom are opened;Lithium ion battery is placed in box bottom wall, start motor one drives rotating shaft rotation, synchronous belt drive rotating shaft and track rotate, make slider one and slider two relative motion, make two cylinder and two clamps relative motion to lithium ion battery fixed clamping, avoid lithium ion battery shape difference or external force and other factors shift, can ensure that lithium battery position is stable in subsequent operation.

Description

Technical Field

[0001] This utility model relates to the field of lithium-ion battery testing technology, and in particular to a lithium-ion battery needle penetration testing device. Background Technology

[0002] Lithium-ion batteries are a type of rechargeable battery that stores and releases electrical energy by reversibly inserting and deintercalating lithium ions between the positive and negative electrodes. The entire process does not involve the direct deposition or dissolution of metallic lithium, resulting in significantly better safety and cycle performance than traditional lithium metal batteries. Lithium battery needle penetration testing technology simulates scenarios where lithium batteries are punctured by sharp objects during use, transportation, or accidental collisions. It provides a direct assessment of whether the battery will experience dangerous situations such as thermal runaway, explosion, or leakage. This technology provides crucial data support for product safety management in different application scenarios, such as power batteries and consumer lithium batteries, and is an important technical means to ensure the safety of lithium batteries throughout the entire chain from production to application.

[0003] Lithium-ion batteries on the market mainly include various shapes such as cylindrical, square, button, and pouch. Different shapes of batteries have significant differences in structural characteristics and size specifications. Existing lithium-ion battery needle penetration testing devices mostly have fixed clamping mechanisms, which can only adapt to lithium batteries of a single shape or a limited range of sizes. When facing the testing needs of batteries with multiple shapes, it is necessary to replace the entire clamping assembly or even adjust the main structure of the device, which is time-consuming and labor-intensive, and not conducive to the rapid testing of various lithium batteries.

[0004] Therefore, it is necessary to provide a new lithium-ion battery needle penetration detection device to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a lithium-ion battery needle penetration detection device.

[0006] The present invention provides a lithium-ion battery needle penetration testing device comprising: a housing, a testing component, a moving component, two fixed components and two clamping plates. The top of the testing component is fixedly connected to the top wall of the housing, one end of the moving component is fixedly connected to the bottom of the housing, the bottom of the two fixed components are respectively fixedly connected to the top of the moving component, and the surfaces of the two fixed components are movably connected to the inner walls of the through holes opened at the bottom of the two clamping plates. The fixing assembly includes a cylinder, a turntable, a drive mechanism, and four arc-shaped plates. The bottom of the cylinder is fixedly connected to the top of the moving assembly. The cylinder has four sliding grooves inside, and the four arc-shaped plates are slidably connected to the four sliding grooves. The surfaces of the four arc-shaped plates abut against the inner walls of the through holes opened at the bottom of the clamping plate. Each of the four arc-shaped plates has a fixing post on its surface. The surfaces of the four fixing posts are slidably connected to the inner walls of the four arc-shaped grooves opened on the surface of the turntable. One side of the turntable is rotatably connected to the top wall of the cylinder, and the other side of the turntable is fixedly connected to one end of the drive mechanism. The other end of the drive mechanism is fixedly connected to the bottom wall of the inner wall of the cylinder.

[0007] Preferably, the transmission mechanism includes a connecting column and a second motor. One end of the connecting column is fixedly connected to one side of the turntable, and the other end of the connecting column is fixedly connected to the output end of the second motor. One side of the second motor is fixedly connected to the bottom wall of the cylinder.

[0008] Preferably, the moving assembly includes a fixed shell, a slide rail, a motor, a track, a sliding mechanism, two support plates, and two support plates. The top of the fixed shell is fixedly connected to the bottom of the housing, the bottom of the slide rail is fixedly connected to the bottom wall of the fixed block, the bottom of the two support plates is fixedly connected to the bottom wall of the fixed shell, and a rotating shaft is rotatably connected to the opposite side of the two support plates. The bottom of the two support plates is fixedly connected to the bottom wall of the fixed shell. One side of the support plate adjacent to the slide rail is rotatably connected to one end of the rotating shaft, and the other end of the rotating shaft is fixedly connected to the output end of the motor. The surface of the rotating shaft is rotatably connected to the inner wall of a through hole on the surface of the support plate away from the slide rail. One end of the motor is fixedly connected to the inner wall of the fixed shell, the inner side of the track is rotatably connected to the outer surface of the rotating shaft and the outer surface of the rotating shaft, and one side of the sliding mechanism is fixedly connected to the surface of the track.

[0009] Preferably, the sliding mechanism includes slider one and slider two, the bottoms of slider one and slider two are slidably connected to the surface of the track, one side of slider one is fixedly connected to the upper surface of the track, and one side of slider two is fixedly connected to the lower surface of the track.

[0010] Preferably, the detection assembly includes an electric telescopic rod, a needle-piercing device, and two baffles. One end of the electric telescopic rod is fixedly connected to the top wall of the box, the telescopic end of the electric telescopic rod is fixedly connected to the top of the needle-piercing device, and the two baffles are respectively fixedly connected to one side of the needle-piercing device.

[0011] Preferably, the box body is provided with four support columns, and the tops of the four support columns are fixedly connected to the bottom of the box body.

[0012] Compared with related technologies, the lithium-ion battery needle penetration detection device provided by this utility model has the following beneficial effects: 1. Place the lithium-ion battery on the bottom wall of the box, start motor one to drive the rotating shaft to rotate, and simultaneously drive the rotating shaft and the track to rotate, so that slider one and slider two move relative to each other, and so that the two cylinders and two clamping plates move relative to each other to fix and clamp the lithium-ion battery, so as to prevent the lithium-ion battery from shifting due to differences in shape or external forces, and ensure the stability of the lithium battery in subsequent operations.

[0013] 2. The starter motor drives the turntable to rotate, which in turn drives the four arc-shaped plates to extend or retract outwards from the cylinder. This facilitates the replacement of clamps for lithium batteries of different specifications and shapes, significantly reducing equipment downtime and enhancing the equipment's versatility and flexibility, thus better meeting different production or work needs. Attached Figure Description

[0014] Figure 1 A schematic diagram of a preferred embodiment of a lithium-ion battery needle penetration detection device provided by this utility model; Figure 2 This is a cross-sectional view of the movable component shown in this utility model; Figure 3 This is a side view of the fixing component shown in this utility model; Figure 4 This is a cross-sectional view of the fixing component shown in this utility model.

[0015] The following are the labeling elements in the diagram: 1. Box body; 2. Electric telescopic rod; 201. Needle-piercing device; 202. Baffle; 3. Clamping plate; 4. Fixed shell; 401. Slide rail; 402. Support plate one; 403. Support plate two; 404. Motor one; 405. Slider one; 406. Slider two; 407. Track; 5. Cylinder; 501. Sliding groove; 502. Arc plate; 503. Turntable; 504. Connecting column; 505. Motor two; 506. Fixed column. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please refer to the following: Figure 1-4 ,in, Figure 1 A schematic diagram of a preferred embodiment of a lithium-ion battery needle penetration detection device provided by this utility model; Figure 2 This is a cross-sectional view of the movable component shown in this utility model; Figure 3 This is a side view of the fixing component shown in this utility model; Figure 4 This is a cross-sectional view of the fixing component shown in this utility model.

[0018] In the specific implementation process, such as Figure 1-4 As shown, it includes: a housing 1, a detection component, a moving component, two fixed components and two clamping plates 3. The top of the detection component is fixedly connected to the top wall of the housing 1, one end of the moving component is fixedly connected to the bottom of the housing 1, the bottom of the two fixed components are respectively fixedly connected to the top of the moving component, and the surfaces of the two fixed components are movably connected to the inner walls of the through holes opened at the bottom of the two clamping plates 3. The fixed assembly includes a cylinder 5, a turntable 503, a drive mechanism, and four arc-shaped plates 502. The bottom of the cylinder 5 is fixedly connected to the top of the moving assembly. The cylinder 5 has four sliding grooves 501 inside. The four arc-shaped plates 502 are slidably connected to the four sliding grooves 501. The surfaces of the four arc-shaped plates 502 abut against the inner wall of the through hole at the bottom of the clamping plate 3. Each of the four arc-shaped plates 502 has a fixing post 506 on its surface. The surfaces of the four fixing posts 506 are slidably connected to the inner walls of the four arc-shaped grooves on the surface of the turntable 503. One side of the turntable 503 is rotatably connected to the top wall of the cylinder 5. The other side of the turntable 503 is fixedly connected to one end of the drive mechanism. The other end of the drive mechanism is fixedly connected to the bottom wall of the inner wall of the cylinder 5. The transmission mechanism includes a connecting column 504 and a second motor 505. One end of the connecting column 504 is fixedly connected to one side of the turntable 503, and the other end of the connecting column 504 is fixedly connected to the output end of the second motor 505. One side of the second motor 505 is fixedly connected to the bottom wall of the cylinder 5. When the second motor 505 is started, it drives the turntable 503 to rotate, which simultaneously drives the four arc-shaped plates 502 to extend or retract outward from the cylinder 5. This facilitates the replacement of the clamping plates 3 for lithium batteries of different specifications and shapes, greatly shortens the downtime of the equipment, enhances the versatility and flexibility of the equipment, and can better meet different production or work needs. The moving assembly includes a fixed housing 4, a slide rail 401, a motor 404, a track 407, a sliding mechanism, two support plates 402 and two support plates 403. The top of the fixed housing 4 is fixedly connected to the bottom of the housing 1. The bottom of the slide rail 401 is fixedly connected to the bottom wall of the fixed block. The bottom of the two support plates 402 is fixedly connected to the bottom wall of the fixed housing 4. The two support plates 402 are rotatably connected to a rotating shaft on opposite sides. The bottom of the two support plates 403 is fixedly connected to the bottom wall of the fixed housing 4. One side of the support plate 403 adjacent to the slide rail 401 is rotatably connected to one end of the rotating shaft. The other end of the rotating shaft is fixedly connected to the output end of the motor 404. The surface of the rotating shaft is rotatably connected to the inner wall of a through hole opened on the surface of the support plate 403 away from the slide rail 401. One end of the motor 404 is fixedly connected to the inner wall of the fixed housing 4. The inner side of the track 407 is rotatably connected to the outer surface of the rotating shaft and the outer surface of the rotating shaft. One side of the sliding mechanism is fixedly connected to the surface of the track 407. The sliding mechanism includes slider 1 405 and slider 2 406. The bottoms of slider 1 405 and slider 2 406 are slidably connected to the surface of slide rail 401. One side of slider 1 405 is fixedly connected to the upper surface of the track, and one side of slider 2 406 is fixedly connected to the lower surface of track 407. When the lithium-ion battery is placed on the bottom wall of the housing 1, the motor 1 404 is started to drive the rotating shaft to rotate, which simultaneously drives the rotating shaft and track 407 to rotate, causing slider 1 405 and slider 2 406 to move relative to each other. This causes the two cylinders 5 and the two clamping plates 3 to move relative to each other to fix and clamp the lithium-ion battery, preventing displacement due to differences in the shape of the lithium-ion battery or external forces, and ensuring the stability of the lithium battery position in subsequent operations. The testing assembly includes an electric telescopic rod 2, a needle-piercing device 201, and two baffles 202. One end of the electric telescopic rod 2 is fixedly connected to the top wall of the housing 1, and the telescopic end of the electric telescopic rod 2 is fixedly connected to the top of the needle-piercing device 201. The two baffles 202 are fixedly connected to one side of the needle-piercing device 201 respectively. When the electric telescopic rod 2 is activated, the needle-piercing device 201 and the two baffles 202 are lowered. Together with the clamping plate 3, the lithium battery is sealed around, preventing the lithium battery from being interfered with by the outside world. At the same time, a relatively closed space is formed, which improves the safety of operation and helps to better control the working environment related to the lithium battery, thus ensuring the working effect. The box 1 is equipped with four support columns, and the tops of the four support columns are fixedly connected to the bottom of the box 1.

[0019] The working principle provided by this utility model is as follows: The lithium-ion battery is placed on the bottom wall of the housing 1. Motor 1 (404) is started, driving the rotating shaft to rotate, simultaneously rotating the shaft and track 407. This causes relative movement between slider 1 (405) and slider 2 (406), resulting in relative movement between the two cylinders 5 and the two clamping plates 3 to securely hold the lithium-ion battery. This prevents displacement due to differences in battery shape or external forces, ensuring the battery's stable position during subsequent operations. Motor 2 (505) is started, driving the turntable 503 to rotate, simultaneously extending or retracting the four arc-shaped plates 502 outwards from the cylinder 5. This facilitates the replacement of clamping plates 3 for lithium batteries of different specifications and shapes, significantly reducing equipment downtime and enhancing its versatility and flexibility to better meet diverse production or work needs. The electric telescopic rod 2 is started, causing the needle-piercing device 201 and the two baffles 202 to descend. Together with the clamping plates 3, this seals the lithium battery from all sides, preventing external interference and creating a relatively enclosed space. This improves operational safety and helps to better control the working environment related to the lithium battery, ensuring optimal work performance.

[0020] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.

[0021] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A lithium-ion battery needle penetration detection device, characterized in that, It includes a housing (1), a detection component, a moving component, two fixed components and two clamping plates (3). The top of the detection component is fixedly connected to the top wall of the housing (1), one end of the moving component is fixedly connected to the bottom of the housing (1), the bottom of the two fixed components are fixedly connected to the top of the moving component respectively, and the surfaces of the two fixed components are movably connected to the inner walls of the through holes opened at the bottom of the two clamping plates (3). The fixing component includes a cylinder (5), a turntable (503), a drive mechanism, and four arc-shaped plates (502). The bottom of the cylinder (5) is fixedly connected to the top of the moving component. The cylinder (5) has four sliding grooves (501) inside. The four arc-shaped plates (502) are slidably connected to the four sliding grooves (501) respectively. The surfaces of the four arc-shaped plates (502) abut against the inner wall of the through hole opened at the bottom of the clamping plate (3). The surfaces of the four arc-shaped plates (502) are all provided with fixing posts (506). The surfaces of the four fixing posts (506) are slidably connected to the inner wall of the four arc-shaped grooves opened on the surface of the turntable (503). One side of the turntable (503) is rotatably connected to the top wall of the cylinder (5). The other side of the turntable (503) is fixedly connected to one end of the drive mechanism. The other end of the drive mechanism is fixedly connected to the bottom wall of the inner wall of the cylinder (5).

2. The lithium-ion battery needle penetration detection device according to claim 1, characterized in that, The transmission mechanism includes a connecting column (504) and a second motor (505). One end of the connecting column (504) is fixedly connected to one side of the turntable (503), and the other end of the connecting column (504) is fixedly connected to the output end of the second motor (505). One side of the second motor (505) is fixedly connected to the bottom wall of the cylinder (5).

3. The lithium-ion battery needle penetration detection device according to claim 2, characterized in that, The moving assembly includes a fixed shell (4), a slide rail (401), a motor (404), a track (407), a sliding mechanism, two support plates (402), and two support plates (403). The top of the fixed shell (4) is fixedly connected to the bottom of the housing (1), the bottom of the slide rail (401) is fixedly connected to the bottom wall of the fixed block, the bottom of the two support plates (402) is fixedly connected to the bottom wall of the fixed shell (4), and the two support plates (402) are rotatably connected to the opposite sides by a rotating shaft. The bottom of the two support plates (403) is connected to the fixed shell (404). 4) The bottom wall is fixedly connected. The side of the support plate 2 (403) adjacent to the slide rail (401) is rotatably connected to one end of the rotating shaft. The other end of the rotating shaft is fixedly connected to the output end of the motor 1 (404). The surface of the rotating shaft is rotatably connected to the inner wall of the through hole opened on the surface of the support plate 2 (403) away from the slide rail (401). One end of the motor 1 (404) is fixedly connected to the inner wall of the fixed shell (4). The inner side of the track (407) is rotatably connected to the outer surface of the rotating shaft and the outer surface of the rotating shaft. One side of the sliding mechanism is fixedly connected to the surface of the track (407).

4. The lithium-ion battery needle penetration detection device according to claim 3, characterized in that, The sliding mechanism includes slider one (405) and slider two (406). The bottoms of slider one (405) and slider two (406) are slidably connected to the surface of the slide rail (401). One side of slider one (405) is fixedly connected to the upper surface of the track (407), and one side of slider two (406) is fixedly connected to the lower surface of the track (407).

5. A lithium-ion battery needle penetration detection device according to claim 4, characterized in that, The detection assembly includes an electric telescopic rod (2), a needle-punching device (201), and two baffles (202). One end of the electric telescopic rod (2) is fixedly connected to the top wall of the box (1), the telescopic end of the electric telescopic rod (2) is fixedly connected to the top of the needle-punching device (201), and the two baffles (202) are fixedly connected to one side of the needle-punching device (201) respectively.

6. A lithium-ion battery needle penetration detection device according to claim 5, characterized in that, The box (1) is provided with four support columns, and the top of the four support columns is fixedly connected to the bottom of the box (1).

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