公开(公告)号：US20200161998A1

公开(公告)日：2020-05-21

申请号：US16684951

申请日：2019-11-15

申请人： KOREA INSTITUTE OF MACHINERY & MATERIALS

发明人： Hyunchang KIM ,  Dongwoo KANG ,  Kwang-Young KIM

IPC分类号： H02P7/025 ,  H02K41/035 ,  H02K11/215

摘要： A linear motor according to an exemplary embodiment of the present invention includes a frame having a bottom and two sidewalls and extending in a longitudinal direction, multiple coil modules repeatedly disposed on the bottom in the longitudinal direction and configured to constitute a stator, a mover disposed on the two sidewalls in a width direction intersecting the longitudinal direction, the mover being movable in the longitudinal direction, thrust magnets mounted at a lower side of the mover and selectively corresponding to the multiple coil modules, and a Hall switching board mounted on an inner surface of one of the two sidewalls and having first Hall sensors (switching Hall sensors) operated by a magnetic field corresponding to the thrust magnets so that a driver controls phase conversion of the multiple coil modules.