中国稀土永磁电机关键技术研究

Research on Key Technologies of Rare Earth Permanent Magnet Motor in China

稀土永磁材料是当前稀土行业发展最快、应用最多的材料,已经广泛应用于永磁电机、新能源汽车、消费电子等高科技领域,其中稀土永磁电机行业不仅产值巨大,而且应用需求广泛,是电子和机械工业各个新兴领域的基础。该文选用复杂网络分析和LDA主题分析方法,对稀土永磁电机领域1985年1月1日到2021年12月31日发明专利开展研究,将中国与稀土永磁电机产业优势国进行对比,识别中国稀土永磁电机关键技术,为中国稀土永磁电机未来的技术发展方向提供参考。

Rare earth permanent magnet material is the fastest growing and most widely used material in rare earth industry,and it has been widely used in high-tech fields such as permanent magnet motor,new energy vehicle,consumer electronics and so on.Rare earth permanent magnet motor industry not only has a huge output value,but also has a wide range of application requirements,which is the basis of various emerging fields of electronics and machinery industry.Using the methods of complex network analysis and LDA topic analysis,this paper studies the invention patents from January 1,1985 to December 31,2021 in the field of rare earth permanent magnet motors,compares China with the dominant countries of rare earth permanent magnet motors,and identifies the key technologies of rare earth permanent magnet motors in China,so as to provide reference for the future development direction of rare earth permanent magnet motors in China.