摘要
随着电磁能量采集器的广泛应用,常见的在单方向或二维平面内收集能量的方式并不能满足一些复杂的工作环境。文中提出一种多方向电磁能量采集器的结构设计,当采集器在任意方向振动时,可在多个方向上同时产生能量并回收。采用Ansys Maxwell软件对该采集器的动子磁体堆中永磁体与间隔铁片的尺寸、动子磁体堆的最佳平衡位置、各通道缠绕线圈的最佳位置及线圈宽度进行了优化;结合优化所得最佳参数制作了试验原型机;通过一系列振动试验测试了多方向电磁能量采集器的能量收集特性。试验结果表明:随着激励强度的提高,采集器电压输出增大,响应频带变宽,且均在11 Hz达到最大值。该研究为采集器在多方向上收集能量提供了一种新思路。
With the wide application of electromagnetic energy harvesters,the common way of collecting energy in a single directional or two-dimensional plane fails to meet the requirements of some complex working environments.In this article,a multidirectional electromagnetic energy harvester is subject to structural design.When the harvester vibrates in any direction,energy can be generated and recovered in multiple directions at the same time.Ansys Maxwell is used to optimize the size of the permanent magnet and the spacer iron sheet in the energy harvester’s mover magnet stack,the optimal equilibrium position of the mover magnet stack,and the optimal position of the winding coil of each channel and the coil width.The experimental prototype is made by combining the optimal parameters obtained from optimization.The energy-harvesting characteristics of the multi-directional electromagnetic energy harvester are tested by a series of vibration experiment.These results show that with the ever-growing excitation intensity,the energy harvester’s voltage output increases and the response frequency band broadens,both reaching the maximum value of 11 Hz.This study provides a new idea for the energy harvester to collect energy in multiple directions.
作者
李扬
任伟
王杰云
雷琪
丁煜恒
王建梅
LI Yang;REN Wei;WANG Jieyun;LEI Qi;DING Yuheng;WANG Jianmei(Engineering Research Center of Heavy Machinery,Ministry of Education,Taiyuan University of Science and Technology,Taiyuan 030024;Department of Mechanical Engineering,Shanxi Institute of Technology,Yangquan 045000;Shanxi Engineering Technology Xinzhou Innovation Research Institute,Xinzhou 034000)
出处
《机械设计》
北大核心
2025年第10期150-160,共11页
Journal of Machine Design
基金
博士科研启动基金项目(20212009)
太原科技大学研究生教改项目(JG2022001)
优秀来晋博士科研资助(2022019)。
关键词
能量采集
低频振动
功率密度
多通道结构
energy harvesting
low-frequency vibration
power density
multi-channel structure
