公开(公告)号：US20200212787A1

公开(公告)日：2020-07-02

申请号：US16620972

申请日：2018-10-22

申请人： KYB CORPORATION

发明人： Yoshiaki KANO ,  Kousuke SATOU ,  Shinichirou HAKAMADA ,  Daichi SHIBAHARA

IPC分类号： H02K41/03

摘要： To achieve the foregoing object, a tubular linear motor of the present invention includes a core that has a tubular yoke and a plurality of teeth which are annular and provided at intervals in an axial direction on an outer periphery of the yoke; a winding mounted in a slot between the teeth; and a field magnet that is tubular, into which the core is movably inserted in the axial direction, and having N poles and S poles alternately arranged in the axial direction. An axial width W of a yoke-side inner peripheral edge of the teeth is larger than an axial width of an outer peripheral edge of the teeth.