用于微型胃肠道胶囊机器人供能的U型发射线圈无线能量传输系统设计与实验  

Design and experiment:u-shaped transmitting coil wireless power transfer system for micro gastrointestinal capsule robot

作　　者：孟一村 颜国正[1,2] 汪炜[1,2] 陈范吉[1,2] MENG Yi-cun;YAN Guo-zheng;WANG Wei;CHEN Fan-ji(School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Institute of Medical Robotics,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240 [2]上海交通大学医疗机器人研究院,上海200240

出　　处：《光学精密工程》2021年第8期1881-1890,共10页Optics and Precision Engineering

基　　金：国家自然科学基金项目(No.81971767);上海市科学技术委员会科研计划项目(No.19441910600,No.19441913800,No.19142203800);上海交通大学医疗机器人研究院项目(No.IMR2018KY05)。

摘　　要：为了解决微型胃肠道胶囊机器人或其他可植入医疗设备无法使用电源线供电以及无线能量发射系统性能差的问题,本文提出了一种新的U型发射线圈无线能量传输系统。与传统的螺线管对式的发射线圈相比,通过结构的改进,首次将磁芯加入到了发射线圈中。该系统可以极大地改善传输过程中传输效率低,机器人接收功率低的问题。本文建立了所提出的U型发射线圈无线能量传输系统的理论模型,并通过有限元模拟对其进行了分析。搭建了U型发射线圈无线能量传输系统平台对其能量传输效率和接收线圈的接收功率进行了测试,以验证所提出设计的有效性。实验结果表明,所提出的U型无线能量传输系统的传输效率最高达到14.13%,接收功率最高为3 780.75 mW,能够满足机器人工作的功率要求。Power cables cannot be used to power micro gastrointestinal capsule robots or other implantable medical equipment,and wireless power transfer systems exhibit poor performance. To address these limitations,this paper proposes a U-shaped transmitting coil wireless power transfer(WPT)system. In contrast to the traditional solenoid-paired transmitting coil,the proposed transmitter coil comprises a magnetic core,which was added after incorporating a few structural improvements. The core can tremendously improve the power transfer efficiency(PTE)and received power. In this study,a theoretical model of the proposed system is established and analyzed via a finite element simulation. To verify the effectiveness of the proposed design,a U-shaped transmitting coil WPT system platform is built,and experimental tests on the PTE of the system and the received power of the receiving coil are conducted. The experimental results demonstrate that the maximum received power of the proposed system is 3780. 75 mW and its PTE is 14. 13%,which satisfy the power requirements of the robot.

关 键 词：微型胃肠道胶囊机器人 无线能量传输 电磁感应 发射线圈 传输效率 

分 类 号：TH776[机械工程—仪器科学与技术] TM154.2[机械工程—精密仪器及机械]