Surface defect screening device applied to lithium battery

By using a camera rotation design and a rotating plate control device, the high cost of existing lithium battery surface screening equipment has been solved, achieving efficient battery block screening and classification, reducing equipment hardware costs, and making it suitable for technology upgrades and product quality improvement for small and medium-sized enterprises.

CN224114617UActive Publication Date: 2026-04-14CHONGQING PIONEER SATELLITE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing lithium battery surface screening equipment is expensive due to the high cost of high-resolution cameras, making it unaffordable for small and medium-sized enterprises and limiting technological upgrades and product quality improvements.

Method used

The design employs a rotating camera, using a circular camera combined with a rotating plate and control device to achieve image acquisition and classification of battery blocks, reducing the number of high-resolution cameras required. The classification of battery blocks is achieved by using a motor to drive the rotating plate and adjustment rod to rotate.

Benefits of technology

It reduces equipment hardware costs and enables efficient screening and classification of battery blocks, making it suitable for the technological upgrading and product quality improvement of small and medium-sized lithium battery manufacturers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of lithium battery manufacturing equipment, in particular to a surface defect screening device applied to a lithium battery, which comprises a support plate, a side camera, a driving block, a motor I, a support shell, a circular camera, a rotating plate, a regulation and control device and a fixed plate, the bottom of the supporting shell is provided with an opening for the battery block to make contact with the driving block, one end of the driving block is connected with a driving shaft of the first motor, the other end of the driving block is rotatably arranged on the rotating plate, the side camera is fixed to the top end of the fixing plate, the circular camera is fixed to the rotating plate, and the adjusting and controlling device comprises a first adjusting rod, a second motor, a flat plate, a second adjusting rod and a supporting block. The first adjusting rod and the second adjusting rod are driven by the second motor to rotate, so that the battery blocks in the supporting shell move in the rotating direction of the rotating plate and fall into an external collecting groove, and the battery blocks with different masses can be classified.
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Description

Technical Field

[0001] This utility model relates to the field of lithium battery manufacturing equipment, and in particular to a surface defect screening device for lithium batteries. Background Technology

[0002] The primary purpose of lithium battery surface screening is to ensure that the battery's appearance and performance meet quality standards. During the production process, defects such as scratches, dents, and bubbles may appear on the battery surface. These defects not only affect the battery's appearance but may also negatively impact its performance and safety. Surface screening allows for the timely detection and rejection of problematic batteries, ensuring the quality of products leaving the factory.

[0003] Existing lithium battery surface screening equipment typically requires multiple high-resolution cameras, which are costly and contribute to the overall high price of the equipment. For small and medium-sized lithium battery manufacturers, this high equipment cost may be unaffordable, limiting their technological upgrades and product quality improvements. Utility Model Content

[0004] Therefore, this utility model was developed in view of the above problems. The purpose of this utility model is to solve the problem of high-resolution cameras in existing devices, which are costly and result in an expensive overall equipment price. For small and medium-sized lithium battery manufacturers, the high equipment cost may be unaffordable, limiting their technological upgrades and product quality improvements. This utility model achieves the above objective through the following technical solution.

[0005] A surface defect screening device for lithium batteries includes: a support plate, a side camera, a drive block, a first motor, a support housing, a circular camera, a rotating plate, an adjustment device, and a fixed plate. The support housing is fixed on the rotating plate, and the bottom of the support housing has an opening for the battery block to contact the drive block. One end of the drive block is connected to the drive shaft of the first motor, and the other end is rotatably mounted on the rotating plate. The side camera is fixed to the top of the fixed plate, and the circular camera is fixed on the rotating plate. The adjustment device includes an adjustment rod, a second motor, a flat plate, the second adjustment rod, and a support block. The first adjustment rod is connected to the drive shaft of the second motor, and the upper end of the first adjustment rod has two support blocks. The second adjustment rod is connected to the first adjustment rod in a T-shape, and the upper end of the second adjustment rod has one support block.

[0006] Preferably, the flat plate is connected to the lower drive shaft of the second motor to drive the first and second adjusting rods to rotate synchronously.

[0007] Preferably, there are three support blocks, two of which are set on the first adjusting rod and one on the second adjusting rod. The support blocks are elastic and always provide a driving force toward the rotating plate to support or release the rotating plate.

[0008] Preferably, the surface of the drive block is provided with a frosted pattern, and when the frosted pattern comes into contact with the battery block, it drives the battery block to rotate around its own axis.

[0009] Preferably, the rotating plate switches its support state via the support block of the control device, thereby driving the support housing to rotate.

[0010] This invention uses a rotating circular camera to capture data from both ends of the battery block, reducing the number of high-resolution cameras required and avoiding the high cost of hardware that would otherwise make the overall equipment expensive. For small and medium-sized lithium battery manufacturers, the high cost of such equipment may be unaffordable, thus limiting their technological upgrades and product quality improvements.

[0011] This invention uses a second motor to drive the first and second adjusting rods to rotate. The rotating plate rotates towards the side not supported by the supporting block, causing the supporting shell on it to rotate. Ultimately, the battery block inside the supporting shell moves in the direction of rotation of the rotating plate and falls into the external collection trough. In this way, battery blocks of different masses can be classified. This allows the second motor to not only drive the circular camera to rotate and collect information from the battery blocks, but also to classify the battery blocks. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the control device of this utility model in the feeding state.

[0014] Figure 3 This is a schematic diagram of the structure of the control device of this utility model in a supported state.

[0015] Among them, 100 is the support plate; 200 is the side camera; 300 is the drive block; 400 is the motor one; 500 is the support housing; 600 is the circular camera; 700 is the rotating plate; 800 is the control device; 810 is the adjustment rod one; 820 is the motor two; 830 is the flat plate; 840 is the adjustment rod two; 850 is the support block; 900 is the battery block; and 1000 is the fixing plate. Detailed Implementation

[0016] Preferred embodiments of this utility model will be described in detail with reference to the accompanying drawings, which will facilitate the implementation of these embodiments by those skilled in the art. However, this utility model can be implemented in various different forms, and therefore is not limited to the embodiments described below. Furthermore, for clarity, components not connected to this utility model will be omitted from the drawings.

[0017] like Figure 1-2 As shown, a surface defect screening device for lithium batteries includes: a support plate 100, a side camera 200, a drive block 300, a motor 400, a support housing 500, a circular camera 600, a rotating plate 700, a control device 800, a battery block 900, and a fixing plate 1000.

[0018] The side camera 200 is fixed to the top of the fixing plate 1000 and located above the side of the support housing 500.

[0019] One end of the drive block 300 is connected to the drive rod of the motor 400, and the other end is rotatably mounted on the upper wall of the rotating plate 700. The surface of the drive block 300 is provided with a frosted pattern, which can effectively drive the battery block 900 to rotate when in contact with it in the specific implementation.

[0020] The motor 400 is mounted on the upper wall of the rotating plate 700 via a connecting rod.

[0021] The support housing 500 is fixedly mounted on the upper wall of the rotating plate 700 by a connecting rod; the bottom of the support housing 500 is provided with an opening for the battery block 900 to contact the drive block 300.

[0022] The circular camera 600 is fixedly mounted on the rotating plate 700 by a connecting rod.

[0023] The rotating plate 700 is rotatably mounted on the side of the fixed plate 1000 via a connecting rod.

[0024] The control device 800 is mounted on the upper drive shaft of motor 820.

[0025] The fixing plate 1000 is vertically fixed on the upper wall of the support plate 100.

[0026] like Figure 2-3 As shown, the control device 800 includes: a first adjusting rod 810, a second motor 820, a flat plate 830, a second adjusting rod 840, and a support block 850.

[0027] The adjusting rod 810 is mounted on the upper drive shaft of the motor 820, and two support blocks 850 are mounted on the adjusting rod 810.

[0028] The second motor 820 is mounted on the side of the fixed plate 1000 via a connecting rod.

[0029] The flat plate 830 is mounted on the lower drive shaft of the motor 820 and is located on the upper wall of the support plate 100, with contact but not connection between them.

[0030] The second adjusting rod 840 is cylindrical and is located on the side end of the first adjusting rod 810. A support block 850 is provided on the second adjusting rod 840. In specific implementation, the first adjusting rod 810 and the second adjusting rod 840 are on the same horizontal plane and form a T-shape.

[0031] There are three support blocks 850, which are respectively set on the upper wall of the first adjusting rod 810 and the second adjusting rod 840. The support blocks 850 are elastic and always have a driving force in the direction of the rotating plate 700. In specific implementation, the support blocks 850 can support and adjust the rotation direction of the rotating plate 700. The first adjusting rod 810, which is provided with two support blocks 850, can be collinear with the rotation axis of the rotating plate 700 in specific implementation.

[0032] Working principle of this utility model:

[0033] 1. In specific implementation, after the operator places the battery block 900 into the support housing 500, the motor 400 drives the drive block 300 to rotate, which in turn drives the battery block 900 to rotate through the opening at the bottom of the support housing 500.

[0034] 2. During the rotation of the battery block 900, the side camera 200 can capture images from the side of the battery block 900. The motor 820 drives the tablet 830 to rotate, causing the circular camera 600 on it to rotate to both ends of the battery block 900 for image capture. By using a single rotating circular camera 600 to capture images from both ends, the number of high-resolution cameras required is reduced, avoiding high hardware costs that would otherwise lead to an expensive overall device price. For small and medium-sized lithium battery manufacturers, the high cost of such equipment may be unaffordable, limiting their technological upgrades and product quality improvements.

[0035] 3. After the battery module 900 completes data acquisition, the external controller analyzes the data from the battery module 900, and then motor 2 820 drives the adjusting rod 1 810 to rotate. Figure 3 In this state, the two support blocks 850 on the adjusting rod 810 are positioned on both sides of the rotating plate 700 to support the wall of the rotating plate 700, thus transforming it into a rotating plate. Figure 2 The two support blocks 850 on the state adjustment rod 1 810 are located below the rotating rod of the rotating plate 700. At this time, the support blocks 850 on the state adjustment rod 1 810 no longer support the wall of the rotating plate 700. Only the support blocks 850 on the state adjustment rod 2 840 support the wall of the rotating plate 700. In this state, the support blocks 850 can generate an upward driving force on one side of the rotating plate 700.

[0036] 4. Therefore, in specific implementation, motor 2 820 drives adjusting rod 2 840 to rotate toward both ends of battery block 900. Driven by support block 850 on adjusting rod 2 840, rotating plate 700 will rotate toward the side not supported by support block 850. The rotation of rotating plate 700 drives the support housing 500 on it to rotate, and finally the battery block 900 inside the support housing 500 moves toward the rotation direction of rotating plate 700 and falls into the external collection tank. In this way, battery blocks 900 of different masses can be classified. This allows motor 2 820 to not only drive the circular camera 600 to rotate to collect information from battery blocks 900, but also to classify battery blocks 900.

Claims

1. A surface defect screening device for lithium batteries, characterized in that, include: Support plate (100), side camera (200), drive block (300), motor (400), support housing (500), circular camera (600), rotating plate (700), control device (800), fixing plate (1000). The support housing (500) is fixed on the rotating plate (700). The bottom of the support housing (500) has an opening for the battery block (900) to contact the drive block (300). One end of the drive block (300) is connected to the drive shaft of motor (400), and the other end is rotatably mounted on the rotating plate (700). The side camera (200) is mounted on the rotating plate (700). 00) is fixed to the top of the fixed plate (1000), the circular camera (600) is fixed to the rotating plate (700), and the control device (800) includes an adjustment rod (810), a motor (820), a flat plate (830), an adjustment rod (840) and a support block (850). The adjustment rod (810) is connected to the drive shaft of the motor (820). The upper end of the adjustment rod (810) is provided with two support blocks (850). The adjustment rod (840) is connected to the adjustment rod (810) in a T-shape. The upper end of the adjustment rod (840) is provided with a support block (850).

2. The surface defect screening device for lithium batteries according to claim 1, characterized in that: The plate (830) is connected to the lower drive shaft of the second motor (820) to drive the first adjusting rod (810) and the second adjusting rod (840) to rotate synchronously.

3. The surface defect screening device for lithium batteries according to claim 1, characterized in that: There are three support blocks (850), two of which are set on the first adjusting rod (810) and one is set on the second adjusting rod (840). The support blocks (850) are elastic and always provide a driving force toward the rotating plate (700) to support or release the rotating plate (700).

4. The surface defect screening device for lithium batteries according to claim 1, characterized in that: The surface of the drive block (300) is provided with a frosted pattern. When the frosted pattern comes into contact with the battery block (900), it drives the battery block to rotate around its own axis.

5. The surface defect screening device for lithium batteries according to claim 1, characterized in that: The rotating plate (700) switches its support state through the support block (850) of the control device (800), thereby driving the support shell (500) to rotate.