Battery cell surface foreign matter detection device
By designing a foreign object detection device for battery cells, and using an image acquisition and processing module to identify foreign objects on the surface of the battery cells, the battery quality problem caused by foreign objects during battery cell assembly is solved, ensuring the safety and reliability of the battery.
Patent Information
- Application Number
- CN202423260405.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-27
AI Technical Summary
During cell assembly, foreign matter can easily adhere to the cell surface, leading to lithium plating or short circuits. Existing technologies struggle to effectively detect and clean these foreign matter.
A foreign object detection device for battery cell surface was designed, including a carrier plate, an image acquisition module, a light source module, an image processing module, and a driving module. By capturing and analyzing images of the battery cell surface, foreign objects are identified and cleaned in a timely manner to prevent diaphragm puncture.
It enables timely detection and cleaning of foreign objects on the surface of the battery cell, avoiding lithium plating or short circuits, and improving battery quality and detection accuracy.
Smart Images
Figure CN223808357U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery technology field especially relates to a kind of electric core surface foreign matter detection device. BACKGROUND
[0002] During the assembly of electric core, since electric core needs to be transported and processed for many times, the surface of electric core adheres some foreign matters, and these foreign matters are mainly metal foreign matters.If the foreign matters are not cleaned in time, the foreign matters are easy to puncture diaphragm in the process of subsequent charge-discharge and electric core transportation, thereby causing battery lithium precipitation or short circuit, and affecting the quality of battery. UTILITY MODEL CONTENTS
[0003] The utility model provides a kind of electric core surface foreign matter detection device, for detecting whether there is foreign matter on the surface of electric core, to clean the foreign matter on the surface of electric core in time, avoid foreign matter puncture diaphragm, to ensure the quality of battery.
[0004] The utility model provides a kind of electric core surface foreign matter detection device, comprising:
[0005] Support plate, the support plate is used to place electric core, and the large face of the electric core is parallel to the support plate;
[0006] Image acquisition module, the image acquisition module is set to the top of the support plate, to be used for shooting the image of the large face of the electric core;
[0007] First drive module, the first drive module is used to drive the image acquisition module relatively the electric core along the length direction of the electric core, to make the image acquisition module continuous shooting the image of different parts of the large face of the electric core;
[0008] Light source module, the light source is used to provide light for the image acquisition module;
[0009] Image processing module, the image processing module is used to process the image shot by the image acquisition module, to identify the foreign matter of the large face of the electric core.
[0010] The electric core surface foreign matter detection device provided by the utility model, set up image acquisition module and image processing module, image acquisition module can shoot the image of electric core big face, image processing module can be used for processing and analyzing the image of electric core big face to identify whether electric core big face has foreign matter. When electric core big face has foreign matter, operating personnel can acquire information in time, thereby processing the foreign matter of electric core in time, preventing foreign matter from puncturing diaphragm, thereby avoiding battery lithium precipitation or short circuit, to ensure the quality of battery. In addition, set up light source module, can provide light for image acquisition module, make image acquisition module shoot in the environment of sufficient light, thereby ensure that the acquired image is clear. Set up first drive module, be used for driving image acquisition module to move, to shoot the different parts of electric core big face, to this acquire complete image of electric core big face, thereby improve the precision of detection. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a structure schematic view of the electric core surface foreign matter detection device in the utility model embodiment;
[0012] Figure 2 It is a structure schematic view of the light source module in the utility model embodiment;
[0013] Figure 3 It is another structure schematic view of the electric core surface foreign matter detection device in the utility model embodiment;
[0014] Figure 4 It is a structure schematic view of the electric core placed in the electric core station in the utility model embodiment;
[0015] Figure 5 It is a structure schematic view of the first drive module and the third drive module in the utility model embodiment.
[0016] In the drawing:
[0017] 10-electric core;100-carrier plate;110-electric core station;120-clamp plate;200-image acquisition module;300-first drive module;310-first guide rail;320-mounting seat;330-first drive motor;400-light source module;410-lampshade;411-avoidance hole;420-light source;500-third drive module;510-second guide rail;520-second drive motor;600-light shielding cover;610-light shielding plate. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.
[0019] Reference Figure 1 The cell surface foreign matter detection device in the embodiments of the present application can include a carrier plate 100, an image acquisition module 200, a first driving module 300, a light source module 400 and an image processing module (not shown in the figure). The carrier plate 100 is used to place the cell 10. The image acquisition module 200, the first driving module 300 and the light source module 400 are arranged above the carrier plate 100 and are arranged with a spacing between the carrier plate 100.
[0020] As Figure 1 shown, when the cell 10 is placed on the carrier plate 100, the large surface of the cell 10 is parallel to the carrier plate 100, that is, the large surface of the cell 10 faces the image acquisition module 200, and the image acquisition module 200 can be used to shoot the image of the large surface of the cell 10. Since the large surface of the cell 10 accounts for a large proportion of the surface of the cell 10, the large surface of the cell 10 is more likely to adhere to foreign matter during assembly, so the large surface of the cell 10 can be photographed in this embodiment, so as to detect the large surface of the cell 10.
[0021] When the image acquisition module 200 photographs the large surface of the cell 10, the first driving module 300 can be used to drive the image acquisition module 200 to move relative to the cell 10 along the length direction of the cell 10, so that the image acquisition module 200 can continuously shoot the images of different parts of the large surface of the cell 10, so that the image acquisition module 200 can shoot the complete image of the large surface of the cell 10.
[0022] The light source module 400 can be used to provide light to the image acquisition module 200 when the image acquisition module 200 shoots, so that the image acquisition module 200 can shoot in an environment with sufficient light, and ensure that the obtained image is clear.
[0023] The image processing module can be used to process the image shot by the image acquisition module 200. Specifically, when processing, the image processing module can identify the image to determine whether there is foreign matter on the large surface of the cell 10. When it is identified that there is foreign matter on the large surface of the cell 10 in the image, a prompt can also be given, so that the operator can timely know the information of the cell 10 with foreign matter.
[0024] It can be understood that the battery cell surface foreign matter detection device in the embodiment can determine whether the large face of the battery cell 10 has foreign matter by setting the image acquisition module 200 and the image processing module to photograph and analyze the large face of the battery cell 10, so as to timely understand the foreign matter on the surface of the battery cell 10, so as to process the battery cell 10 with foreign matter in time to avoid the foreign matter piercing the diaphragm. The light source module 400 can provide sufficient light for the image processing module to ensure that the image photographed by the image acquisition module 200 is clear, and the first driving module 300 can make the image photographed by the image processing module cover the large face of the battery cell 10, thereby improving the detection accuracy to ensure the quality of the battery.
[0025] In actual application, the image acquisition module 200 may, for example, be a CCD camera.
[0026] In some embodiments, referring to Figure 1 and Figure 2 , the light source module 400 can be arranged at the bottom of the image acquisition module 200, that is, the light source module 400 is located between the image acquisition module 200 and the battery cell 10. At this time, the light source module 400 can include a lampshade 410 and a plurality of groups of light sources 420, wherein the axis of the lampshade 410 can be consistent with the optical axis of the image acquisition module 200, and the plurality of groups of light sources 420 can be uniformly arranged around the circumference of the lampshade 410.
[0027] The top of the lampshade 410 can also be provided with a relief hole 411, the axis of the relief hole 411 is consistent with the axis of the lampshade 410, and the image acquisition module 200 can photograph the large face of the battery cell 10 through the relief hole 411. Because the lampshade 410 is arranged, the light emitted by the plurality of groups of light sources 420 can be collected, and when the image acquisition module 200 photographs the image of the large face of the battery cell 10 through the relief hole 411, the plurality of groups of light sources 420 can better ensure the brightness of the shooting environment to ensure the definition of the image.
[0028] In addition, the plurality of groups of light sources 420 are uniformly arranged around the circumference of the lampshade 410, so as to form a combined ring-shaped light. When the image acquisition module 200 photographs, the plurality of groups of light sources 420 can illuminate the large face of the battery cell 10 from different angles, so as to avoid the reflection caused by the diaphragm or adhesive on the surface of the battery cell 10, thereby ensuring the high definition of the photographed image.
[0029] In other embodiments, the plurality of groups of light sources 420 can also be ring-shaped light bars, and the light bars are fixed to the bottom of the lampshade 410 to provide light for the image acquisition module 200.
[0030] To further ensure the shooting environment of the image acquisition module 200, referring to Figure 3The foreign matter detection device for the battery cell in the embodiment can further include a light blocking cover 600, which can be arranged around the image acquisition module 200 and the light source module 400 to reduce light pollution, thereby further ensuring the image quality of the shooting and improving the detection accuracy.
[0031] In specific implementation, as shown in Figure 3 , the light blocking cover 600 can include, for example, three light blocking plates 610 connected in sequence to form a U-shaped structure. The light blocking cover 600 is located above the battery cell 10, and the image acquisition module 200 and the light source module 400 can be located inside the U-shaped structure, so that the light blocking plates 610 can block the ambient light and avoid interference caused by the ambient light to the shooting. The bottom of the light blocking cover 600 is provided with a hollow structure to facilitate the image acquisition module 200 to shoot the image of the battery cell 10.
[0032] In other embodiments, the light blocking cover 600 can further include four light blocking plates 610 connected in sequence to form a square structure, and the image acquisition module 200 and the light source module 400 are located inside the square structure.
[0033] In some embodiments, referring again to Figure 1 , the shape of the carrier plate 100 is circular, and at this time, the carrier plate 100 can be provided with a plurality of battery cell stations 110 uniformly distributed along the circumference of the carrier plate 100. The distance between each battery cell station 110 and the center of the carrier plate 100 is equal, that is, the plurality of battery cell stations 110 can be considered as array distribution.
[0034] Each battery cell station 110 can be used to place one battery cell 10, and the carrier plate 100 can rotate around its axis to move different battery cell stations 110 to the directly below the image acquisition module 200, so that the image acquisition module 200 can shoot the image of the large face of different battery cells 10. Since one carrier plate 100 can place a plurality of battery cells 10, a plurality of battery cells 10 can realize continuous shooting detection, which is beneficial to improve the work efficiency.
[0035] It is worth mentioning that, since the battery cell stations 110 are array distributed, when the carrier plate 100 rotates to move different battery cell stations 110 to the below the image acquisition module 200, the relative state between the battery cell 10 in each battery cell station 110 and the image acquisition module 200 can remain consistent. In this way, when shooting the image of the large face of different battery cells 10 by using the image acquisition module 200, it is not necessary to adjust the position of the image acquisition module 200, thereby further improving the work efficiency.
[0036] Based on this, the battery cell surface foreign matter detection device in the embodiment can further include a second driving module (not shown in the figure), which can be used to drive the carrier plate 100 to rotate around the axis of the carrier plate 100, so as to change the relative position between the carrier plate 100 and the image acquisition module 200. For example, the second driving module can include a rotating shaft and a motor, the rotating shaft can be connected with the output shaft of the motor, and the rotating shaft can be fixedly connected to the center position of the carrier plate 100. The motor drives the rotating shaft to rotate around the axis of the rotating shaft, so as to realize the rotation of the carrier plate 100.
[0037] In addition, each battery cell station 110 can also be provided with a limiting component, which can limit and fix the battery cell 10 placed in the battery cell station 110, so as to ensure that it is fixed during the rotation of the carrier plate 100 and the detection process, thereby ensuring the detection accuracy.
[0038] Reference Figure 4 For example, the limiting component can include two clamping plates 120 arranged oppositely, and the two clamping plates 120 can be fixed relative to the carrier plate 100. When the battery cell 10 is placed in the battery cell station 110, the two clamping plates 120 can clamp the two sides of the battery cell 10, so that the two sides of the battery cell 10 are respectively abutted against the two clamping plates 120, thereby enabling the battery cell 10 to be fixed.
[0039] In some embodiments, referring again to Figure 1 The battery cell surface foreign matter detection device in the embodiment can further include a third driving module 500, which can be used to drive the image acquisition module 200 and the light source module 400 to move relative to the carrier plate 100 along the width direction of the battery cell 10, thereby adjusting the relative position between the image acquisition module 200 and the large face of the battery cell 10. When the size of the battery cell 10 changes, by adjusting the position of the image acquisition module 200, the image acquisition module 200 can capture a complete image of the large face of the battery cell 10 when capturing the image of the large face of the battery cell 10, so as to ensure the detection accuracy.
[0040] As described in the foregoing embodiments, the carrier plate 100 is provided with a plurality of battery cell stations 110, and the carrier plate 100 can have a detection station relative to the image acquisition module 200. When one of the battery cell stations 110 is rotated to the detection station, the image acquisition module 200 captures the image of the battery cell 10 in the battery cell station 110.
[0041] Based on this, referring to Figure 1 and Figure 5 The first driving module 300 can include a first guide rail 310 and a mounting seat 320, and the image acquisition module 200 and the light source module 400 are fixedly connected to the mounting seat 320, so that the image acquisition module 200 and the light source module 400 are relatively fixed, so as to ensure the stability of the shooting environment light.
[0042] The extension direction of the first guide rail 310 is parallel to the length direction of the battery cell 10 in the detection station, and the mounting base 320 is movably mounted on the first guide rail 310 along the extension direction of the first guide rail 310. That is, when the carrier plate 100 rotates to one of the battery cell stations 110 to the detection station, the image acquisition module 200 can be right against the battery cell 10 in the battery cell station 110, so that the image acquisition module 200 can start to take images of the battery cell 10. During the movement of the image acquisition module 200, the image acquisition module 200 can move linearly relative to the battery cell 10, so as to ensure that the images taken by the image acquisition module 200 can cover the large surface of the battery cell 10.
[0043] Further, the third driving module 500 can include a second guide rail 510, which is movably mounted on the first guide rail 310 through a sliding block, and the second guide rail 510 is movable relative to the first guide rail 310 along the extension direction of the first guide rail 310. The extension direction of the second guide rail 510 is parallel to the width direction of the battery cell 10 in the detection station, and the mounting base 320 is movably mounted on the second guide rail 510 through a sliding block, and the mounting base 320 is movable relative to the second guide rail 510 along the extension direction of the second guide rail 510.
[0044] It can be understood that the mounting base 320 and the second guide rail 510 can be regarded as a whole, and when it is needed to move the image acquisition module 200 along the length direction of the battery cell 10, the second guide rail 510 can be driven to move relative to the first guide rail 310, and in this process, the mounting base 320 and the second guide rail 510 remain fixed. The mounting base 320 and the second guide rail 510 can also be two independent structures, and when it is needed to move the image acquisition module 200 along the width direction of the battery cell 10, the mounting base 320 can be driven to move relative to the second guide rail 510. Thus, the first guide rail 310 and the second guide rail 510 are integrated, which is conducive to reducing the occupied space of the first driving module 300 and the third driving module 500.
[0045] In addition, with reference to Figure 5 , the first driving module 300 can further include a first driving motor 330, and the third driving module 500 can further include a second driving motor 520. The first driving motor 330 can drive the second guide rail 510 to move along the extension direction of the first guide rail 310, and the second driving motor 520 can drive the mounting base 320 to move along the extension direction of the second guide rail 510.
[0046] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.
Claims
1. An electrode surface foreign matter detecting device characterized by comprising: The application relates to a battery cell surface foreign matter detection device. The device comprises a carrier plate for placing battery cells, the large surface of the battery cells being parallel to the carrier plate; an image acquisition module arranged above the carrier plate for shooting images of the large surface of the battery cells; a first driving module for driving the image acquisition module to move along the length direction of the battery cells relative to the battery cells so that the image acquisition module continuously shoots images of different parts of the large surface of the battery cells; a light source module for providing light for the image acquisition module; and an image processing module for processing the images shot by the image acquisition module to identify foreign matters on the large surface of the battery cells. The light source module comprises a plurality of groups of light sources which are distributed in the circumferential direction of the optical axis of the image acquisition module. The light source module further comprises a lampshade arranged at the bottom of the image acquisition module, the axis of the lampshade being consistent with the optical axis of the image acquisition module. The plurality of groups of light sources are uniformly distributed on the side of the lampshade away from the image acquisition module in the circumferential direction of the lampshade, the lampshade is provided with a clearance hole so that the image acquisition module can shoot images of the large surface of the battery cells through the clearance hole. The device further comprises a light-blocking cover surrounding the image acquisition module and the light source module.
2. The cell surface foreign object detection device according to claim 1, characterized by, The carrier plate is circular in shape and is provided with a plurality of battery cell stations which are uniformly distributed in the circumferential direction of the carrier plate.
3. The cell surface foreign object detection apparatus according to claim 2, characterized by, The device further comprises a second driving module for driving the carrier plate to rotate around the axis of the carrier plate so that one of the battery cell stations is rotated to a detection station, and when the battery cell station is in the detection station, the image acquisition module is opposite the battery cell of the battery cell station. The battery cell station is provided with a limiting assembly for limiting and fixing the battery cell.
4. The cell surface foreign object detection apparatus according to claim 1, characterized by, The first driving module comprises a first guide rail and a mounting seat, the extension direction of the first guide rail is parallel to the length direction of the battery cell in the battery cell station in the detection station, the image acquisition module and the light source module are fixed to the mounting seat, and the mounting seat is movably mounted to the first guide rail in the extension direction of the first guide rail.
5. The cell surface foreign object detection apparatus according to claim 1, characterized by, The device further comprises a third driving module for driving the image acquisition module and the light source module to move relative to the carrier plate along the width direction of the battery cell in the detection station. The third driving module comprises a second guide rail extending along the width direction of the battery cell in the detection station, and the mounting seat is movably mounted to the second guide rail in the extension direction of the second guide rail.
6. The cell surface foreign object detection apparatus according to claim 5, characterized by, The image acquisition module is a CCD camera.
7. The cell surface foreign object detection apparatus according to claim 5, characterized by, 8. The cell surface foreign object detection apparatus according to claim 7, characterized by, 9. The cell surface foreign object detection apparatus according to claim 8, characterized by, 10. The cell surface foreign object detection apparatus according to claim 1, characterized by,