Extensible spliced lithium battery multi-angle scanning imaging device
Patent Information
- Application Number
- CN202522669062.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-17
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-12-17
AI Technical Summary
[0003]本实用新型的目的在于提供一种可扩展拼接的锂电池多角度扫描成像设备，能够有效抑制机台震动影响、实现高精度多角度区域式扫描，同时解决现有设备检测模态单一、无法适应不同尺寸电池检测需求等技术缺陷
本实用新型通过引入可拼接模块化架构、多模态传感器融合及主动防抖成功构建了一个兼具高度柔性与超高精度的检测平台。其核心在于将标准化拼接接口、多物理场（X射线/红外/超声）同步感知与振动实时补偿技术深度融合，一举攻克了传统设备在检测尺寸灵活性、成像稳定性、缺陷发现全面性及数据可信度等方面的系列难题。若是电池体积过大还可通过扩展拼接接口进行扩展设备，实现批量采集，实现了从单一功能检测向智能化、可扩展、全维度分析的跨越，为锂电池行业提供了一种革新性的无损检测解决方案。
Smart Images
Figure CN224921226U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of image scanning technology, specifically to an expandable, stitched lithium battery multi-angle scanning imaging device. Background Technology
[0002] Currently, new energy products, represented by electric vehicles, are gaining increasing market share across various industries and winning consumer trust due to their advantages such as environmental friendliness, energy efficiency, low noise, and low operating costs. As the core power source for new energy equipment, the quality of batteries directly affects product performance and safety. However, new energy batteries have complex structures, require high precision in manufacturing processes, and manual quality inspection can only identify external defects, making it difficult to detect internal problems. Therefore, the industry commonly uses X-rays or radiation sources to perform three-dimensional imaging of batteries and performs slicing analysis to detect defects at specific locations. Compared to traditional visible light-based visual inspection, X-ray imaging, while capable of penetrating internal structures, still has significant limitations with existing controllable dual-ray emission equipment: First, it has weak anti-interference capabilities, as vibrations during scanning can easily cause relative displacement between the X-ray source and the object under test, resulting in blurred images and misaligned 3D reconstructions; second, the equipment lacks flexibility, with fixed-size scanning platforms struggling to meet the full-size inspection needs, ranging from small consumer batteries to large automotive modules; and third, the inspection dimension is limited, relying solely on the X-ray imaging modality of the controllable dual-ray emission module, making it difficult to effectively identify complex defects with thermal or electrical characteristics, such as localized heating caused by micro-short circuits and poor soldering of electrode tabs. Utility Model Content
[0003] The purpose of this invention is to provide an expandable and splicable multi-angle scanning imaging device for lithium batteries, which can effectively suppress the influence of machine vibration, achieve high-precision multi-angle regional scanning, and solve the technical defects of existing equipment such as single detection mode and inability to adapt to the detection needs of batteries of different sizes.
[0004] To achieve the above objectives, this utility model provides the following technical solution: An expandable, multi-angle scanning imaging device for lithium batteries includes a dual-column support frame with a base. An automatic controller is integrated within the base of the dual-column support frame, and an expansion splicing interface is provided on the side of the base. This interface allows for the combination of scanning imaging devices and parallel connection of devices to achieve full-coverage imaging when the lithium battery under test exceeds the detection range of a single device platform. Between the two columns of the dual-column support frame, a dual-projection module bracket, a positioning and clamping guide rail device, and a digital flat panel detector are mounted from top to bottom. A multimodal sensing and transmitting module, communicating with the automatic controller, is slidably connected to the dual-projection module bracket. The central axes of the multimodal sensing and transmitting module, the lithium battery fixed on the positioning and clamping guide rail device, and the digital flat panel detector below are constrained to the same vertical mid-plane. The module includes a servo motor, a controllable dual-ray emission module, an infrared sensor, an ultrasonic probe, and an inertial measurement unit. The controllable dual-ray emission module actively emits two rays with independently adjustable directions and parameters; the infrared sensor monitors the battery surface temperature by detecting thermal radiation; the ultrasonic probe uses sound wave reflection to measure the battery's external dimensions and surface deformation; the digital flat panel detector receives rays that penetrate the lithium battery and reconstructs a high-precision, low-blind-spot internal three-dimensional structural image; the inertial measurement unit collects angular velocity and linear acceleration signals caused by system vibration in real time and transmits the data to the automatic controller; the controller outputs compensation commands to the servo motor based on the optical axis offset of the controllable dual-ray emission module; the servo motor drives the controllable dual-ray emission module to generate reverse pose adjustment.
[0005] Furthermore, the positioning and clamping guide rail device is slidably connected to a pair of adjustable positioning blocks that are communicatively connected to the automatic controller. The two blocks move towards or away from each other along the guide rail to achieve adaptive clamping and limiting of products of different sizes. Furthermore, the extended splicing interface includes an external communication port and a cascade port integrating power and data contacts. When the cascade port completes docking, its built-in power and data connector contacts automatically engage to form a reliable electrical connection. When multiple scanning imaging device units are connected sequentially through the cascade port, the device unit whose external communication port is connected to an external control device is configured as the master control unit. The master control unit uniformly schedules the controllable dual-ray emission modules of each subordinate unit to perform segmented scanning, and summarizes all scanning data for image splicing, fusion, and three-dimensional reconstruction to output a complete three-dimensional model of the lithium battery.
[0006] Furthermore, the cascade port includes a positioning hole on the base along the width direction. A positioning pin is hinged to the outside of the base via a 180° hinge. The positioning pin can rotate around the hinge axis and be inserted into the positioning hole of another scanning device. Several grooves are provided axially on the outer circumferential surface of the positioning pin. A positioning locking pin is provided on the base at the position corresponding to the top of the positioning hole. It can reciprocate in the vertical direction. The lower end of the positioning locking pin extends toward the inside of the positioning hole. When the positioning pin of the first scanning device is inserted into the positioning hole of the second scanning device, the positioning locking pin moves downward under manual pressing, and its end is embedded in the groove of the positioning pin, forming a mechanical interlock.
[0007] Compared with the prior art, the present invention has the following beneficial effects: This invention successfully constructs a highly flexible and ultra-precise testing platform by introducing a modular, splicable architecture, multi-modal sensor fusion, and active image stabilization. Its core lies in the deep integration of standardized splicing interfaces, simultaneous multi-physics (X-ray / infrared / ultrasound) sensing, and real-time vibration compensation technology, overcoming a series of challenges posed by traditional equipment in terms of testing size flexibility, imaging stability, comprehensive defect detection, and data reliability. For batteries with excessively large volumes, the equipment can be expanded via extended splicing interfaces to achieve batch data acquisition, realizing a leap from single-function testing to intelligent, scalable, and multi-dimensional analysis, providing the lithium battery industry with a revolutionary non-destructive testing solution.
[0008] Furthermore, this utility model extends the splicing interface by providing external communication ports and cascading ports, enabling multiple scanning imaging device units to be quickly cascaded to form an integrated scanning platform. The master control unit is automatically determined based on the connection status of the external communication ports, which then centrally schedules all subordinate units to collaboratively execute segmented scanning and centrally processes all data to complete high-precision 3D reconstruction. This design not only overcomes the limitations of single-machine detection size but also achieves automation of the scanning process, consistency of imaging, and integrity of the model, combining flexibility, reliability, and industrial practicality. By setting a pair of adjustable positioning blocks on the positioning and clamping guide rail device, which move towards or away from each other along the guide rail, adaptive clamping and limiting of products of different sizes can be achieved. Attached Figure Description
[0009] Figure 1 This is a front view of the structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 for Figure 2 Side view of a single cascaded port at point A; Figure 4 This is a schematic diagram of the structure when two cascaded ports are connected.
[0010] In the diagram: 1-Double column support frame; 101-Base; 2-Double-shooting module bracket; 3-Positioning clamping guide rail device; 301-Adjustable positioning stop; 4-Digital flat panel detector; 5-Multimodal sensing and transmitting module; 6-Positioning hole; 7-Positioning pin; 8-Positioning lock pin. Detailed Implementation
[0011] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0012] like Figure 1 , 2 As shown in the figure, the expandable splicing lithium battery multi-angle scanning imaging device described in this embodiment includes a double column support frame 1 with a base 101. An automatic controller is integrated in the base 101 of the double column support frame 1, and an expansion splicing interface is provided on the side of the base 101. This interface is used to combine scanning imaging devices as needed and achieve parallel connection of devices to complete full-coverage imaging when the lithium battery under test exceeds the detection range of a single device platform.
[0013] A dual-column support frame 1 consists of a dual-projector module bracket 2, a positioning and clamping guide rail device 3, and a digital flat panel detector 4, mounted from top to bottom between the two columns. A multimodal sensing and transmitting module 5, driven by a servo motor, is slidably connected to the dual-projector module bracket 2. The multimodal sensing and transmitting module 5 serves as the emission source, forming a scanning link together with the lithium battery fixed on the positioning and clamping guide rail device 3 and the digital flat panel detector 4 below. The central axes of all three are constrained to the same vertical mid-plane to ensure the continuity of the scanning optical path and imaging accuracy. A pair of adjustable positioning blocks 301 are slidably connected to the positioning and clamping guide rail device 3. These blocks move towards or away from each other along the guide rail to achieve adaptive clamping and limiting of products of different sizes. The multimodal sensing and transmitting module 5 and the adjustable positioning blocks 301 are communicatively connected to the automatic controller.
[0014] The multimodal sensing and emission module 5 includes a controllable dual-ray emission module, an infrared sensor, an ultrasonic probe, and an inertial measurement unit. The controllable dual-ray emission module actively emits two rays with independently adjustable directions and parameters. The infrared sensor monitors the battery surface temperature by detecting thermal radiation. The ultrasonic probe uses sound wave reflection to measure the battery's external dimensions and surface deformation. The digital flat panel detector 4 receives the rays penetrating the lithium battery and reconstructs a high-precision, low-blind-zone internal three-dimensional structural image. The inertial measurement unit acquires angular velocity and linear acceleration signals caused by system vibration in real time and transmits the data to the automatic controller. The controller outputs compensation commands to the servo motor based on the optical axis offset of the controllable dual-ray emission module. The servo motor drives the controllable dual-ray emission module to generate reverse pose adjustment, thereby maintaining the stability of the ray emission direction in a dynamic environment and achieving active vibration compensation.
[0015] The extended splicing interface includes an external communication port and a cascading port with integrated power and data contacts. Upon docking at the cascading port, the built-in power and data connector contacts automatically engage, forming a reliable electrical connection. When multiple scanning imaging equipment units are connected sequentially through the cascading ports, the unit with its external communication port connected to an external control device is configured as the master control unit. The master control unit centrally schedules the controllable dual-ray emission modules of each subordinate unit to perform segmented scanning, and aggregates all scan data for image stitching, fusion, and 3D reconstruction, outputting a complete 3D model of the lithium battery.
[0016] like Figure 3 , 4 As shown, the cascade port includes a positioning hole 6 on the base 101 along its width direction. A positioning pin 7 is hinged to the outside of the base 101 via a 180° hinge. The positioning pin 7 can rotate around the hinge axis and be inserted into the positioning hole 6 of another scanning device. Several grooves are provided axially on the outer circumferential surface of the positioning pin 7. A positioning locking pin 8 is provided on the base 101 at the position corresponding to the top of the positioning hole 6, which can reciprocate in the vertical direction. The lower end of the positioning locking pin 8 extends towards the inside of the positioning hole 6; as shown... Figure 4 As shown, when the positioning pin 7 of the first scanning device is inserted into the positioning hole 6 of the second scanning device, the positioning locking pin 8 moves downward under manual pressing and its end is embedded in the groove of the positioning pin 7, forming a mechanical interlock, thereby realizing a reliable connection and locking between adjacent scanning device units.
Claims
1. A scalable, stitched-up lithium battery multi-angle scanning imaging device, characterized in that, Includes a double-column support frame (1) with a base (101). The base (101) of the double-column support frame (1) integrates an automatic controller and has an expansion splicing interface on the side of the base (101) for combining scanning imaging devices as needed and achieving parallel connection of devices to complete full coverage imaging when the lithium battery under test exceeds the detection range of a single device platform. A dual-column support frame (1) is provided with a dual-projector module bracket (2), a positioning clamping guide rail device (3) and a digital flat panel detector (4) from top to bottom between the two columns. A multimodal sensing and transmitting module (5) driven by a servo motor is slidably connected on the dual-projector module bracket (2). The central axis of the multimodal sensing and transmitting module (5), the lithium battery fixed on the positioning clamping guide rail device (3) and the digital flat panel detector (4) below are constrained to the same vertical mid-plane. The multimodal sensing and transmitting module (5) is also connected to the automatic controller. The multimodal sensing and emission module (5) includes a controllable dual-ray emission module, an infrared sensor, an ultrasonic probe, and an inertial measurement unit. The controllable dual-ray emission module is used to actively emit two rays whose direction and parameters can be independently adjusted. The infrared sensor is used to monitor the surface temperature of the battery by detecting thermal radiation. The ultrasonic probe uses sound wave reflection to measure the external dimensions and surface deformation of the battery. The digital flat panel detector (4) is used to receive rays that penetrate the lithium battery and reconstruct a high-precision, low-blind-zone internal three-dimensional structure image. The inertial measurement unit is used to collect angular velocity and linear acceleration signals caused by system vibration in real time and transmit the data to the automatic controller. The controller outputs compensation commands to the servo motor according to the optical axis offset of the controllable dual-ray emission module. The servo motor drives the controllable dual-ray emission module to generate reverse pose adjustment.
2. The scalable, stitched-up lithium battery multi-angle scanning imaging device according to claim 1, characterized in that, The positioning clamping guide rail device (3) is slidably connected to a pair of adjustable positioning blocks (301) that are in communication with the automatic controller. The two blocks move towards or away from each other along the guide rail to achieve adaptive clamping and limiting of products of different sizes.
3. A scalable, stitched-up lithium battery multi-angle scanning imaging device according to any one of claims 1-2, characterized in that, The extended splicing interface includes an external communication port and a cascade port integrating power and data contacts. When the cascade port completes docking, its built-in power and data connector contacts automatically engage to form a reliable electrical connection. When multiple scanning imaging device units are connected sequentially through the cascade port, the device unit whose external communication port is connected to an external control device is configured as the master control unit. The master control unit uniformly schedules the controllable dual-ray emission modules of each subordinate unit to perform segmented scanning, and summarizes all scanning data for image splicing, fusion and three-dimensional reconstruction to output a complete three-dimensional model of the lithium battery.
4. The scalable, stitched-up lithium battery multi-angle scanning imaging device according to claim 3, characterized in that, The cascaded port includes a positioning hole (6) on the base (101) along the width direction. A positioning pin (7) is hinged to the outside of the base (101) by a 180° hinge. The positioning pin (7) can rotate around the hinge axis and be inserted into the positioning hole (6) of another scanning device. Several grooves are provided on the outer peripheral surface of the positioning pin (7) along the axial direction. A positioning locking pin (8) is provided on the base (101) at the position corresponding to the top of the positioning hole (6) and can reciprocate in the vertical direction. The lower end of the positioning locking pin (8) extends toward the inside of the positioning hole (6). When the positioning pin (7) of the first scanning device is inserted into the positioning hole (6) of the second scanning device, the positioning locking pin (8) moves downward under manual pressing and its end is embedded in the groove of the positioning pin (7) to form a mechanical interlock.