A lithium battery flatness detection device

Abstract

The utility model relates to a kind of lithium battery flatness detection equipment, including fixed plate, mobile assembly is equipped in the upper of fixed plate, mobile assembly includes two guide rails, guide rail is equipped with guide block, the upper fixed connection of guide block has locating block;Fixed assembly is equipped in the upper of mobile assembly, fixed assembly includes movable plate, movable plate lower surface and locating block upper surface fixed connection, two fixed seats are equipped on movable plate, detection plate is equipped between fixed seat, and installation slot is equipped on detection plate;Detection assembly is equipped in the upper of movable plate, detection assembly includes two support arms, moving plate is equipped between support arm, moving plate is connected with mounting plate below, and several sensors are equipped below mounting plate.The detection plate of the utility model can install installation slot of any size, so as to be applicable to lithium battery of different sizes, through several sensors on moving plate, multiple points of lithium battery can be detected simultaneously, greatly shorten detection time, and multiple point measurement also improves detection accuracy simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of product testing, and specifically relates to a lithium battery flatness testing device. Background Technology

[0002] Lithium-ion batteries are characterized by high energy density, high voltage, wide operating temperature range, and long shelf life, and are widely used in electric vehicles, energy storage systems, consumer electronics, and military applications. The flatness of lithium-ion batteries plays a crucial role in improving the product's appearance and quality. Flatness directly affects the battery pack's sealing performance, thermal management efficiency, and even overall safety. Even a tiny deviation in flatness can lead to serious consequences such as electrolyte leakage, internal short circuits, or thermal runaway.

[0003] In the existing technology, when inspecting the cover plate of a lithium battery, multiple measurements are taken at different positions on the battery surface, which is too cumbersome and results in low inspection efficiency. In order to improve inspection efficiency while ensuring accuracy, a lithium battery flatness inspection device has been designed. Utility Model Content

[0004] This invention provides a lithium battery flatness testing device, which aims to solve the problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a lithium battery flatness detection device, including a fixed plate, a moving component above the fixed plate, the moving component including two guide rails, the guide rails being arranged in parallel and fixed to the fixed plate, a guide block being provided on the guide rail, the guide block being able to slide on the guide rail along the length direction of the guide rail, and a positioning block being fixedly connected above the guide block.

[0006] A fixed component is provided above the movable component. The fixed component includes a movable plate. The lower surface of the movable plate is fixedly connected to the upper surface of two positioning blocks. Two fixed seats are provided on the movable plate, and the fixed seats are provided with grooves.

[0007] A detection plate is provided between the fixed seats, and the two sides of the detection plate are respectively located in the grooves on the fixed seats. The detection plate is provided with several openings.

[0008] A detection component is provided above the movable plate. The detection component includes two support arms, which are fixedly connected to a fixed plate. A movable plate is provided between the support arms. The movable plate has several openings, and a mounting plate is connected below the openings. Several sensors are provided below the mounting plate.

[0009] Furthermore, a connecting block is fixedly connected to the other end of the guide rail. The connecting block is a U-shaped block, and a rotating wheel is provided in the opening on the connecting block. The lower surface of the movable plate is in contact with the surface of the rotating wheel.

[0010] Furthermore, the detection plate is provided with several mounting slots on its upper part, and the lithium battery to be tested is placed in the mounting slot.

[0011] Furthermore, a sliding groove is provided on the side surface of the support arms that are close to each other, a slide rail is provided in the sliding groove, a slider is connected to the slide rail, an adjustment plate is fixedly connected to the slider, and the two ends of the movable plate are respectively fixedly connected to the adjustment plate.

[0012] Furthermore, the mounting plate is provided with several baffles, which are connected to the mounting plate by bolts. Both the baffles and the mounting plate are provided with through holes, through which a connecting rod passes. The connecting rod is fixedly connected to the baffle, and the sensor is connected to the lower end of the connecting rod.

[0013] Furthermore, the movable plate is provided with a drive assembly, which includes a top plate. The two ends of the top plate are fixedly connected to the top ends of the two support arms, and the top plate is provided with a first drive motor, which is connected to the movable plate.

[0014] Furthermore, a limiting component is provided above the fixing plate. The limiting component includes a base plate, which is fixedly connected to the fixing plate. The base plate has a through hole, through which a threaded rod passes.

[0015] Furthermore, one end of the threaded rod is connected to a sliding plate, and an adjusting block is connected to the bottom of the sliding plate. A slide rail is provided below the adjusting block, and an opening connected to the slide rail is provided on the lower surface of the adjusting block. A fixing rod is provided on the other side of the sliding plate, and a number of equally spaced fixing holes are provided on the fixing seat near the fixing rod, so that the fixing rod can extend into the fixing holes.

[0016] Furthermore, a rotating sleeve is provided on the other side of the substrate. The rotating sleeve is threadedly connected to the threaded rod and slidably connected to the substrate. Two clamping plates are fixedly installed on the rotating sleeve, and a handle is hinged to the other end of the clamping plates.

[0017] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is simple and easy to use. The detection plate can be equipped with mounting slots of any size to accommodate lithium batteries of different sizes. By moving several sensors on the plate, multiple points of the lithium battery can be detected simultaneously, which greatly shortens the detection time and improves the detection accuracy while measuring multiple points. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the appearance structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 3 This is a side view of the structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the mobile component of this utility model;

[0022] Figure 5 This is a schematic diagram of the support arm structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the guide rail structure of this utility model;

[0024] Figure 7 This is a schematic diagram of the limiting component structure of this utility model;

[0025] Figure 8 This is a schematic diagram of the second drive motor structure of this utility model;

[0026] Figure 9 This is a partial structural diagram of the detection component of this utility model;

[0027] In the diagram, 1-base plate, 2-support plate, 3-fixed plate, 4-guide rail, 5-limiting block, 6-guide block, 7-positioning block, 8-connecting block, 9-rotating wheel, 10-moving plate, 11-fixed seat, 12-support block, 13-detection plate, 14-mounting groove, 15-support arm, 16-slide groove, 17-slide rail, 18-slider, 19-adjusting plate, 20-moving plate, 21-mounting plate, 22-baffle, 23-connecting rod, 24-sensor, 25-top plate, 26-first drive motor, 27-fixed block, 28-limiting rod, 29-extension arm, 30-positioning plate, 31-second drive motor, 32-base plate, 33-threaded rod, 34-slide plate, 35-adjusting block, 36-slide track, 37-fixed rod, 38-fixed hole, 39-rotating sleeve, 40-handle. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It should be understood that the preferred embodiments described herein are only for illustration and explanation of the present invention and are not intended to limit the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. In the embodiments, the components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0029] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to an electrical connection; they can refer to a hydraulic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] refer to Figures 1 to 9 A lithium battery flatness testing device includes a base plate 1, support plates 2 connected to both sides of the base plate 1, a fixed plate 3 connected above the two support plates 2, the lower surface of the fixed plate 3 being fixedly connected to the upper end of the support plates 2 on both sides, and a movable component being provided above the fixed plate 3.

[0032] The moving component includes two guide rails 4, which are placed in parallel and fixedly connected to the fixed plate 3. Each guide rail 4 has a limit block 5 connected to one end, which is fixedly connected to the upper surface of the fixed plate 3. The guide rail 4 is provided with a guide block 6, which can slide along the length of the guide rail 4. A positioning block 7 is fixedly connected above the guide block 6, which can move together with the guide block 6. The other end of the guide rail 4 is fixedly connected with a connecting block 8, which is a U-shaped block. A rotating wheel 9 is provided in the opening of the connecting block 8, which is sleeved on the rotating shaft. The connecting block 8 has a through hole, and both ends of the rotating shaft are located in the through hole of the connecting block 8. The rotating wheel 9 can rotate on the connecting block 8, and the rotation direction of the rotating wheel 9 is in the same straight line direction as the length direction of the guide rail 4. The highest point of the rotating wheel 9 is in the same horizontal plane as the upper surface of the positioning block 7.

[0033] To place the lithium battery to be tested, a fixing component is provided above the moving component. The fixing component includes a movable plate 10, the lower surface of which is fixedly connected to the upper surfaces of two positioning blocks 7. The lower surface of the movable plate 10 also contacts the surface of the rotating wheel 9. The movable plate 10 is provided with two fixing seats 11, which are located above the two guide rails 4 respectively. The lower surface of the fixing seats 11 is fixedly connected to the upper surface of the movable plate 10. The two fixing seats 11 are respectively provided with mirrored grooves. A support block 12 is provided between the fixing seats 11 and is fixedly connected to the upper surface of the movable plate 10. A detection plate 13 is also provided between the fixing seats 11. The two sides of the detection plate 13 are located in the grooves on the fixing seats 11. The support block 12 can support the center of the detection plate 13. The detection plate 13 is provided with several openings. A mounting groove 14 is provided above the detection plate 13. The lithium battery to be tested is placed in the mounting groove 14. The size of the mounting groove 14 can be set according to the actual situation.

[0034] In order to test the lithium battery to be tested, a testing component is provided above the movable plate 10, and a support arm 15 is provided above the fixed plate 3. There are two support arms 15, which are located on both sides of the movable plate 10. A slide groove 16 is provided on the side of the support arms 15 that are close to each other. A slide rail 17 is provided in the slide groove 16. The slide rail 17 is fixedly connected to the inner wall of the slide groove 16. A slider 18 is connected to the slide rail 17. An adjustment plate 19 is fixedly connected to the slider 18. A protrusion is provided at the upper end of the adjustment plate 19. A movable plate 20 is provided between the support arms 15. The two ends of the movable plate 20 are fixedly connected to the protrusion at the upper end of the adjustment plate 19 by bolts. The movable plate 20 can move along the length direction of the slide rail 17 with the slider 18.

[0035] The movable plate 20 has several openings, and a mounting plate 21 is provided below the openings. The mounting plate 21 is fixedly installed to the lower surface of the movable plate 20 by bolts. The mounting plate 21 has several baffles 22, and the baffles 22 are connected to the mounting plate 21 by bolts. Both the baffles 22 and the mounting plate 21 have through holes, and a connecting rod 23 passes through the through holes. The connecting rod 23 is fixedly connected to the baffle 22. The lower end of the connecting rod 23 passes through the mounting plate 21 and faces the bottom plate 1. The lower end of the connecting rod 23 is connected to a sensor 24.

[0036] To move the movable plate 20 toward the lithium battery under test, a drive assembly is provided on the movable plate 20. The drive assembly includes a top plate 25, with both ends of the top plate 25 fixedly connected to the top ends of two support arms 15 respectively. The top plate 25 has a connection hole, and a first drive motor 26 is provided above the connection hole. A telescopic push rod passes through the connection hole and is connected to the output end of the first drive motor 26. The movable plate 20 has a positioning hole, through which the movable end of the telescopic push rod passes. A fixing block 27 is provided below the movable plate 20, and is fixedly connected to the movable end of the telescopic push rod. The diameter of the fixing block 27 is larger than the diameter of the positioning hole. The top plate 25 also has a limiting hole, through which a limiting rod 28 passes. The lower end of the limiting rod 28 is fixedly connected to the upper surface of the movable plate 20, and the upper end of the limiting rod 28 has a protrusion to prevent the limiting rod 28 from disengaging from the limiting hole.

[0037] In order to enable the movable plate 10 to move automatically, an extension arm 29 is provided below the movable plate 10, a positioning plate 30 is provided on the fixed plate 3, a second drive motor 31 is installed on the positioning plate 30, the output end of the second drive motor 31 is connected to a telescopic push rod, and the movable end of the telescopic push rod is fixedly connected to the extension arm 29. The movable plate 10 can be moved along the length direction of the guide rail 4 by the second drive motor 31.

[0038] During the testing process, to prevent the movable plate 10 from shaking and causing errors, a limiting component is provided above the fixed plate 3. The limiting component includes a base plate 32, which is fixedly connected to one side of the fixed plate 3. The base plate 32 has a through hole through which a threaded rod 33 passes. One end of the threaded rod 33 is connected to a sliding plate 34. An adjusting block 35 is connected below the sliding plate 34. A slide rail 36 is provided below the adjusting block 35. The lower surface of the adjusting block 35 has an opening that connects to the slide rail 36, allowing the adjusting block 35 to move along the length of the slide rail 36. A fixing rod 37 is provided on the side of the sliding plate 34 near the fixed base 11. The fixing rod 37 is located near the fixing rod 37. The base 11 is provided with several equally spaced fixing holes 38, and the fixing rod 37 can extend into the fixing holes 38; the other side of the base plate 32 is provided with a rotating sleeve 39, which is threadedly connected to the threaded rod 33. The rotating sleeve 39 and the base plate 32 are respectively provided with protrusions and grooves. The rotating sleeve 39 and the base plate 32 are slidably connected, so that the rotating sleeve 39 can rotate on the base plate 32 without falling off. When the rotating sleeve 39 is rotated, the threaded rod 33 will move axially, thereby pushing the slide plate 34 to move on the slide rail 36; two clamping plates are fixedly installed on the rotating sleeve 39. The clamping plates are symmetrically placed, and the other end of the clamping plates is hinged with a handle 40, through which the rotating sleeve 39 can be rotated.

[0039] The telescopic push rod structure connected to the first drive motor 26 and the second drive motor 31 is the same, and the sensor 24 is a compression displacement sensor 24.

[0040] Working principle: When in use, first fix the mounting slot 14 on the detection plate 13, place the lithium battery to be tested in the mounting slot 14, adjust the position of the movable plate 10 to move the mounting slot 14 downwards towards the detection component, fix the movable plate 10 by the limiting component, adjust the position of the movable plate 20 in the detection component to make the sensor 24 contact the lithium battery, and the displacement distance of the sensor 24 probe can be detected by each sensor 24. By detecting and calculating multiple points, it can be determined whether the flatness of the lithium battery is within the standard range.

[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this invention. Therefore, the protection scope of this utility model should be primarily defined by the scope of the claims.

Claims

1. A lithium battery flatness testing device, comprising a fixed plate, wherein a movable component is disposed above the fixed plate, characterized in that: The moving component includes two guide rails, which are placed in parallel and fixed to a fixed plate. A guide block is provided on the guide rail, which can slide along the length of the guide rail. A positioning block is fixedly connected above the guide block. A fixed component is provided above the movable component. The fixed component includes a movable plate. The lower surface of the movable plate is fixedly connected to the upper surface of two positioning blocks. Two fixed seats are provided on the movable plate, and the fixed seats are provided with grooves. A detection plate is provided between the fixed bases. The two sides of the detection plate are respectively located in the grooves on the fixed bases. The detection plate is provided with several mounting slots, and the lithium battery to be tested is placed in the mounting slots. A detection component is provided above the movable plate. The detection component includes two support arms, which are fixedly connected to a fixed plate. A movable plate is provided between the support arms. The movable plate has several openings, and a mounting plate is connected below the openings. Several sensors are provided below the mounting plate.

2. The lithium battery flatness testing device according to claim 1, characterized in that: The other end of the guide rail is fixedly connected to a connecting block, which is a U-shaped block. A rotating wheel is provided in the opening on the connecting block, and the lower surface of the movable plate is in contact with the surface of the rotating wheel.

3. The lithium battery flatness testing device according to claim 1, characterized in that: A support block is provided between the fixed seats. The support block is located below the detection plate and is fixedly connected to the upper surface of the movable plate. The support block can support the center of the detection plate.

4. The lithium battery flatness testing device according to claim 1, characterized in that: The side surfaces of the support arms that are close to each other are provided with a sliding groove, a slide rail is provided in the sliding groove, a slider is connected to the slide rail, an adjustment plate is fixedly connected to the slider, and the two ends of the movable plate are respectively fixedly connected to the adjustment plate.

5. The lithium battery flatness testing device according to claim 1, characterized in that: The mounting plate is provided with several baffles, which are connected to the mounting plate by bolts. Both the baffles and the mounting plate are provided with through holes, through which a connecting rod passes. The connecting rod is fixedly connected to the baffle, and the sensor is connected to the lower end of the connecting rod.

6. The lithium battery flatness testing device according to claim 1, characterized in that: The movable plate is equipped with a drive assembly, which includes a top plate. The two ends of the top plate are fixedly connected to the top ends of the two support arms, and the top plate is equipped with a first drive motor, which is connected to the movable plate.

7. The lithium battery flatness testing device according to claim 1, characterized in that: A limiting component is provided above the fixing plate. The limiting component includes a base plate, which is fixedly connected to the fixing plate. A through hole is provided on the base plate, and a threaded rod passes through the through hole.

8. The lithium battery flatness testing device according to claim 7, characterized in that: One end of the threaded rod is connected to a sliding plate, and an adjusting block is connected to the bottom of the sliding plate. A slide rail is provided below the adjusting block, and an opening connected to the slide rail is provided on the lower surface of the adjusting block. A fixing rod is provided on the other side of the sliding plate, and a number of equally spaced fixing holes are provided on the fixing seat near the fixing rod. The fixing rod can be inserted into the fixing holes.

9. The lithium battery flatness testing device according to claim 7, characterized in that: The other side of the substrate is provided with a rotating sleeve, which is threadedly connected to the threaded rod and slidably connected to the substrate. Two clamping plates are fixedly installed on the rotating sleeve, and a handle is hinged to the other end of the clamping plate.

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