Battery cell appearance detection device based on visual identification

Through visual recognition technology and automated detection mechanism, the problem of difficulty in detecting flatness in battery cell appearance detection is solved, and automatic classification and efficient production of battery cells are realized.

CN223221976UActive Publication Date: 2025-08-15TIMES GUANGZHOU AUTOMOBILE POWER BATTERY CO LTD
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Patent Information

Application Number
CN202422158991.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-03
Publication Date
2025-08-15
Estimated Expiration
2034-09-03

AI Technical Summary

Technical Problem

Existing battery cell appearance detection devices are difficult to detect the flatness of the battery cell surface, causing defective products to flow out and affecting battery performance.

Method used

The battery cell appearance detection device based on visual recognition is adopted to monitor the battery cell flatness in real time through a high-definition camera and detection mechanism, and automatically classify and collect good and bad products through the detection plate and discharge mechanism.

Benefits of technology

It improves the accuracy and production efficiency of battery cell detection, reduces manual intervention, ensures battery quality, and improves the quality control level of the production line.

✦ Generated by Eureka AI based on patent content.

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Abstract

A battery cell appearance detection device based on visual identification comprises a rack, a conveyor is fixedly installed on the left side of the upper end of the rack, an installation frame is fixedly connected to the outer side of the conveyor, a high-definition camera is fixedly installed on the inner side of the top end of the installation frame, and a detection mechanism is installed on the outer side of the conveyor. The detection mechanism comprises two sets of fixing rods, the two sets of fixing rods are fixedly connected to the front side and the rear side of the conveyor respectively, a transverse plate is slidably connected between the two sets of fixing rods, two sets of lifting rods are slidably connected into the transverse plate, and the lower ends of the lifting rods are fixedly connected with a detection plate. Through the arrangement of the detection mechanism, the detection plate can detect the flatness of the outer surface of the battery cell, the bad battery cell with the deformed outer surface or the wrinkled surface can be distinguished from the good battery cell, the transverse plate can drive the detection plate to move up and down for height adjustment, and the battery cell detection device can flexibly adapt to the battery cells with different specifications and elevations.
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Description

Technical Field

[0001] The utility model relates to the technical field of battery core detection, in particular to a battery core appearance detection device based on visual recognition. Background Art

[0002] A battery cell refers to a single electrochemical cell containing positive and negative electrodes. It is generally not used directly. It is different from a battery that has a protection circuit and a shell and can be used directly. The battery is the battery cell without the protection circuit board. The quality of the battery cell directly determines the quality of the rechargeable battery. Currently, it is necessary to use a detection device to detect the appearance quality of the battery cell to avoid the outflow of defective products.

[0003] Chinese patent CN221302154U discloses a device for detecting the appearance and size of a battery cell, which relates to the field of battery cell detection technology. The device comprises a support platform, a first conveyor belt is installed on the inner side of the support platform, a first electric telescopic rod is arranged below the first conveyor belt, a first push plate is fixedly connected to one side of the first electric telescopic rod, a size positioning frame is arranged outside the first push plate, a second electric telescopic rod is arranged on one side of the size positioning frame, a second push plate is fixedly connected to one end of the second electric telescopic rod, a first high-definition camera is arranged on the top of the size positioning frame, a second high-definition camera is arranged on one side of the second electric telescopic rod, a flap is arranged inside the size positioning frame, a third electric telescopic rod is arranged below the flap, and a second conveyor belt is arranged below the third electric telescopic rod. The utility model enables the battery cell to be automatically detected by providing an automatic detection component, thereby reducing the manpower burden and further improving the production efficiency of the enterprise.

[0004] However, the above-mentioned detection device can only measure the size of the battery cell, and it is difficult to detect and distinguish the flatness of the battery cell surface. If the battery cell surface is deformed or the surface of the battery cell is wrinkled, it is difficult to distinguish, resulting in the outflow of defective products, affecting the overall performance of the battery, and causing the performance of the product to deteriorate during use. Utility Model Content

[0005] In order to solve the above technical problems, a battery cell appearance detection device based on visual recognition is provided. This technical solution solves the above problem of difficulty in detecting the flatness of the battery cell surface.

[0006] In order to achieve the above purpose, the technical solution adopted by this utility model is:

[0007] A battery cell appearance inspection device based on visual recognition comprises a frame, a conveyor is fixedly installed on the left side of the upper end of the frame, a mounting frame is fixedly connected to the outer side of the conveyor, a high-definition camera is fixedly installed on the inner side of the top of the mounting frame, a detection mechanism is installed on the outer side of the conveyor, the detection mechanism comprises two groups of fixed rods, the two groups of fixed rods are respectively fixedly connected to the front and rear sides of the conveyor, a cross plate is slidably connected between the two groups of fixed rods, two groups of lifting rods are slidably connected to the inside of the cross plate, the lower end of the lifting rod is fixedly connected to the inspection plate, a discharging mechanism is installed on the right side of the upper end of the frame, the discharging mechanism comprises a discharging rack and a material plate, and the material plate is rotatably connected to the inner side of the right end of the discharging rack.

[0008] Preferably, the two ends of the horizontal plate are respectively fixedly connected with sliders, and the sliders are slidably connected to the inside of the fixed rod, wherein a group of the fixed rods are rotatably connected to the inside of the screw rod through a bearing, wherein a group of the sliders are threadedly connected to the screw rod, and an adjusting motor is fixedly installed on the top of a group of the fixed rods, and the output end of the adjusting motor is fixedly connected to the screw rod through a coupling.

[0009] Preferably, a first electric push rod is fixedly mounted on the upper end of the horizontal plate, an output end of the first electric push rod is fixedly connected to a connecting rod, and both ends of the connecting rod are respectively fixedly connected to the top ends of the two groups of lifting rods.

[0010] Preferably, the discharging mechanism also includes a second electric push rod, a rotating shaft is fixedly connected to the inner side of the right end of the frame, the second electric push rod is rotatably connected to the outer side of the rotating shaft, and the output end of the second electric push rod is hinged to the lower end of the material plate.

[0011] Preferably, a good product box is fixedly connected to the right end of the frame, and a waste product box is fixedly connected to the inner side of the right end of the frame.

[0012] Preferably, a support plate is provided below the conveyor belt of the conveyor, and the support plate is fixedly connected to the upper end of the fixed frame of the conveyor.

[0013] Compared with the existing technology, the beneficial effect of the present invention is that: by setting up a detection mechanism, the detection board can detect the flatness of the surface of the battery cell, and can distinguish defective battery cells with deformed or wrinkled surfaces from good battery cells, and the horizontal plate can drive the detection board to move up and down for height adjustment, and can flexibly adapt to battery cells of different specifications and elevations, ensuring the accuracy and versatility of the detection.

[0014] By setting up high-definition cameras, the passage of battery cells can be monitored in real time, providing clear image feedback to back-end staff, facilitating timely detection and processing of defective products, and improving the quality control level of the production line. By setting up a discharge mechanism, combined with the electric push rod and inclined material plate design, automatic classification and collection of good and defective products can be achieved, reducing manual intervention in subsequent processing, and improving production efficiency and resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the material plate of the utility model when processing defective products;

[0017] Figure 3 This is a schematic diagram of the detection mechanism structure of the utility model;

[0018] Figure 4 This is a structural diagram of the discharging mechanism of the present utility model.

[0019] The numbers in the figure are:

[0020] 1. Frame; 101. Conveyor; 102. Mounting frame; 103. HD camera; 104. Reject box; 105. Good box; 106. Rotating shaft; 107. Support plate;

[0021] 2. Detection mechanism; 201. Fixed rod; 202. Screw; 203. Slider; 204. Adjustment motor; 205. Horizontal plate; 206. Lifting rod; 207. Detection plate; 208. Connecting rod; 209. First electric push rod;

[0022] 3. Discharging mechanism; 301. Discharging rack; 302. Material plate; 303. Second electric push rod. DETAILED DESCRIPTION

[0023] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0024] Example 1

[0025] Please refer to Figures 1-4As shown, a battery cell appearance inspection device based on visual recognition includes a frame 1, a conveyor 101 is fixedly installed on the left side of the upper end of the frame 1, a mounting frame 102 is fixedly connected to the outer side of the conveyor 101, a high-definition camera 103 is fixedly installed on the inner side of the top of the mounting frame 102, and a detection mechanism 2 is installed on the outer side of the conveyor 101. The detection mechanism 2 includes two groups of fixed rods 201, and the two groups of fixed rods 201 are respectively fixedly connected to the front and rear sides of the conveyor 101. A cross plate 205 is slidably connected between the two groups of fixed rods 201, and two groups of lifting rods 206 are slidably connected inside the cross plate 205. The lower end of the lifting rod 206 is fixedly connected to the detection plate 207, and a discharging mechanism 3 is installed on the right side of the upper end of the frame 1. The discharging mechanism 3 includes a discharging frame 301 and a material plate 302, and the material plate 302 is rotatably connected to the inner side of the right end of the discharging frame 301.

[0026] In this solution, the conveyor 101 is electrically connected to an external power supply, and the battery cells are placed on the upper end of the conveyor 101 through an external feeding mechanism, so that they can be inspected by the inspection mechanism 2. The horizontal plate 205 can drive the lifting rod 206 and the inspection plate 207 to move up and down, and adjust according to the standard height of the battery cells to be inspected, so that the distance between the inspection plate 207 and the conveyor 101 is consistent with the elevation of the battery cells to be inspected;

[0027] Furthermore, the lower surface of the inspection plate 207 is a flat plane. If the surface of the battery cell to be inspected is deformed or wrinkled, the height will be inconsistent. If the height of the battery cell is higher than the lower surface of the inspection plate 207, the inspection plate 207 can block the defective battery cell and prevent the battery cell from passing under the inspection plate 207, and stay on the left side of the inspection plate 207. If the flatness of the battery cell is consistent and the height meets the standard, it can pass under the inspection plate 207 smoothly.

[0028] Furthermore, the high-definition camera 103 can monitor the passing of the battery cells in real time, thereby facilitating the backstage staff to observe the inspection status of the battery cells. When defective products are found, the lifting rod 206 can be controlled to move upward so that the battery cells on the left side of the inspection plate 207 can pass through the inspection plate 207.

[0029] Furthermore, the upper surface of the discharge rack 301 is tilted, and the upper surface of the material plate 302 is tilted at the same angle as the upper surface of the discharge rack 301, which facilitates the sliding of the battery cells. When the defective products slide to the upper end of the material plate 302, the backstage staff can control the material plate 302 to rotate downward, so that the sliding direction of the battery cells is opposite to the conveying direction of the conveyor 101, so that good products and defective products can be placed separately.

[0030] Example 2

[0031] Please refer to Figure 3As shown, the two ends of the horizontal plate 205 are respectively fixedly connected with sliders 203, and the sliders 203 are slidably connected to the inside of the fixed rod 201. One group of the fixed rods 201 are rotatably connected to the screw 202 through bearings, and one group of the sliders 203 are threadedly connected to the screw 202. An adjusting motor 204 is fixedly installed on the top of one group of the fixed rods 201, and the output end of the adjusting motor 204 is fixedly connected to the screw 202 through a coupling.

[0032] A first electric push rod 209 is fixedly mounted on the upper end of the horizontal plate 205 , and an output end of the first electric push rod 209 is fixedly connected to a connecting rod 208 , and both ends of the connecting rod 208 are fixedly connected to the top ends of the two sets of lifting rods 206 .

[0033] In this solution, the adjustment motor 204 is electrically connected to an external power supply. The adjustment motor 204 can drive the screw 202 to rotate, and then drive the horizontal plate 205 to move up and down through the slider 203, thereby adjusting the height of the detection plate 207 according to the elevation of the battery cell;

[0034] Furthermore, the first electric push rod 209 is electrically connected to the external power supply. The first electric push rod 209 can push the connecting rod 208 to move the lifting rod 206 upward, thereby driving the detection plate 207 to move upward, so as to facilitate the passage of defective products.

[0035] Example 3

[0036] Please refer to Figure 1 、 Figure 2 and Figure 4 As shown, the discharging mechanism 3 also includes a second electric push rod 303, and the inner side of the right end of the frame 1 is fixedly connected to the rotating shaft 106. The second electric push rod 303 is rotatably connected to the outer side of the rotating shaft 106, and the output end of the second electric push rod 303 is hinged to the lower end of the material plate 302.

[0037] In this plan,

[0038] A good product box 105 is fixedly connected to the right end of the frame 1 , and a reject product box 104 is fixedly connected to the inner side of the right end of the frame 1 .

[0039] A support plate 107 is provided below the conveyor belt of the conveyor 101 , and the support plate 107 is fixedly connected to the upper end of the fixed frame of the conveyor 101 .

[0040] In this solution, the second electric push rod 303 is electrically connected to the external power supply. The second electric push rod 303 can drive the material plate 302 to rotate. When good products pass the upper end of the material plate 302, they can slide along the inclined surface of the material plate 302 to the inside of the good product box 105 for collection. When defective products pass the upper end of the material plate 302, the backstage operator can control the output end of the second electric push rod 303 to retract, thereby driving the material plate 302 to rotate downward, so that the left end of the material plate 302 rotates to the upper end of the reject box 104, thereby causing the defective products to slide into the reject box 104.

[0041] Furthermore, the support plate 107 can support the lower end of the conveyor belt of the conveyor 101 so that the conveyor belt can support the battery cells.

[0042] The working principle and use process of the present invention are as follows: First, the regulating motor 204 is started and the screw 202 is driven to rotate, and then the horizontal plate 205 is driven to move up and down by the slider 203, so as to adjust the height of the detection plate 207 according to the elevation of the battery cell. After that, the battery cell is placed on the upper end of the conveyor 101 through the external feeding mechanism, so as to be detected by the detection mechanism 2. The detection plate 207 can block the defective battery cell and prevent the battery cell from passing under the detection plate 207. The background staff can monitor the passing of the battery cell in real time through the high-definition camera 103. When a defective battery cell is detected, the detection plate 207 can be used to detect the defective battery cell. When rejecting defective products, the first electric push rod 209 is controlled to push the connecting rod 208 so that the lifting rod 206 moves upward, thereby driving the inspection plate 207 to move upward, so that defective products can pass through. At the same time, when the defective products pass the upper end of the material plate 302, the background operator can control the second electric push rod 303 to drive the material plate 302 to rotate downward, so that the left end of the material plate 302 rotates to the upper end of the waste box 104, so that the defective products slide into the inside of the waste box 104, and the good battery cells can directly pass under the inspection plate 207 and slide down the inclined surface of the material plate 302 to the inside of the good box 105 for collection.

[0043] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery cell appearance inspection device based on visual recognition, comprising a frame (1), characterized in that: A conveyor (101) is fixedly mounted on the left side of the upper end of the frame (1), a mounting frame (102) is fixedly connected to the outside of the conveyor (101), a high-definition camera (103) is fixedly mounted on the inner side of the top end of the mounting frame (102), and a detection mechanism (2) is mounted on the outside of the conveyor (101), the detection mechanism (2) comprises two groups of fixed rods (201), and the two groups of fixed rods (201) are fixedly connected to the front and rear sides of the conveyor (101) respectively. A transverse plate (205) is slidably connected between the two groups of fixed rods (201), two groups of lifting rods (206) are slidably connected inside the transverse plate (205), and the lower ends of the lifting rods (206) are fixedly connected to the detection plate (207). A discharge mechanism (3) is installed on the right side of the upper end of the frame (1), and the discharge mechanism (3) includes a discharge rack (301) and a material plate (302), and the material plate (302) is rotatably connected to the inner side of the right end of the discharge rack (301).

2. The battery cell appearance inspection device based on visual recognition according to claim 1, characterized in that: The two ends of the transverse plate (205) are respectively fixedly connected with sliders (203), and the sliders (203) are slidably connected to the interior of the fixed rod (201). The interior of one group of the fixed rods (201) is rotatably connected to a screw rod (202) through a bearing, and one group of the sliders (203) is threadedly connected to the screw rod (202). The top end of one group of the fixed rods (201) is fixedly installed with an adjustment motor (204), and the output end of the adjustment motor (204) is fixedly connected to the screw rod (202) through a coupling.

3. The battery cell appearance inspection device based on visual recognition according to claim 1, characterized in that: A first electric push rod (209) is fixedly mounted on the upper end of the horizontal plate (205), an output end of the first electric push rod (209) is fixedly connected to a connecting rod (208), and both ends of the connecting rod (208) are respectively fixedly connected to the top ends of the two groups of lifting rods (206).

4. The battery cell appearance inspection device based on visual recognition according to claim 1, characterized in that: The discharging mechanism (3) further comprises a second electric push rod (303), the inner side of the right end of the frame (1) is fixedly connected to a rotating shaft (106), the second electric push rod (303) is rotatably connected to the outer side of the rotating shaft (106), and the output end of the second electric push rod (303) is hinged to the lower end of the material plate (302).

5. The battery cell appearance inspection device based on visual recognition according to claim 1, characterized in that: A good product box (105) is fixedly connected to the right end of the frame (1), and a waste product box (104) is fixedly connected to the inner side of the right end of the frame (1).

6. The battery cell appearance inspection device based on visual recognition according to claim 1, characterized in that: A support plate (107) is provided below the conveyor belt of the conveyor (101), and the support plate (107) is fixedly connected to the upper end of the fixed frame of the conveyor (101).

Citation Information

Patent Citations

  • Device for detecting external dimension of battery cell

    CN221302154U