公开(公告)号：US20180048195A1

公开(公告)日：2018-02-15

申请号：US15233112

申请日：2016-08-10

申请人： CHIN-HSING FENG ,  JII-CHYUN WANG

发明人： CHIN-HSING FENG ,  JII-CHYUN WANG

IPC分类号： H02K1/27 ,  H02K1/12 ,  H02K7/08

CPC分类号： H02K7/083 ,  H02K1/141 ,  H02K1/2733 ,  H02K5/15 ,  H02K5/1732

摘要： An electric motor includes a permanent magnet rotor unit and a stator unit. The permanent magnet rotor unit includes a spindle, at least one magnet fixedly disposed beside the spindle, at least one magnetic yoke fixedly disposed at an outer end of the magnet. The stator unit includes a cylindrical extension body. At least one coil is provided on the extension body. The extension body with the coil is mounted to the space between the magnet and the magnetic yoke. The electric motor doesn't use silicon steel plate, so it is light in weight. When the electric current is outputted, it doesn't need rectification. The magnetic field lines won't be diffused and interfere with each other to enhance the magnetic flux effectively.