聚磁环对粘结NdFeB磁体工作气隙磁场影响分析  

Analysis of the ring for gathering magnetic field on working air gap magnetic field of bonded NdFeB magnet

作　　者：许海 郭志伟 肖凯业[1] 郑文[1] XU Hai;GUO Zhi-wei;XIAO Kai-ye;ZHENG Wen(Research Institute of physical and chemical engineering of Nuclear industry,Tianjin 300180,China)

机构地区：[1]核工业理化工程研究院,天津300180

出　　处：《粉末冶金工业》2020年第5期51-54,共4页Powder Metallurgy Industry

摘　　要：磁体周围空间中介质的存在会改变磁体周围磁场的分布,以环形粘结钕铁硼磁体为对象,通过有限元分析的方法,分析了不同尺寸的聚磁环对环形磁体磁性能的影响。通过合理的选择聚磁环结构,可以使得磁体周围磁场在特定点集中,提高磁体磁性能利用率。The existence of magnetic medium in the space around the magnet will change the distribution of magnetic field around the magnet,in this paper,the annular bonded Nd-Fe-B magnet is taken as the object of study.Through finite element analysis method,the paper analysis the influence of different Dimensions of annular medium on magnetic properties of annular bonded NdFeB magnet.By reasonably choosing the structure of the ring for gathering magnetic field,the magnetic field around the magnet can be concentrated at specific points,and the utilization ratio of magnetic properties of the magnet can be improved.

关 键 词：聚磁环 工作气隙磁场 磁性能利用率 

分 类 号：TM27[一般工业技术—材料科学与工程]