公开(公告)号：EP0667991A1

公开(公告)日：1995-08-23

申请号：EP93924672.0

申请日：1993-11-03

申请人： ECOLE NORMALE SUPERIEURE DE CACHAN (LESIR)

发明人： LUCIDARME, Jean ,  LECRIVAIN, Michel ,  MULTON, Bernard ,  PREVOND, Laurent

IPC分类号： E05F15 ,  H02K41

CPC分类号： H02K41/033 ,  E05F15/60 ,  H02K2207/03

摘要： A device for a linear actuator, including a mobile assembly (1) moving relative to a stator (2) in a travelling direction (D). The assembly (1) includes an excitation winding (3) and an armature comprising pole pieces (Sa, Sb, Sc) and permanent magnets (Aab, Abc). The stator (2) is a simple guide tube defining the path of the mobile assembly (1), and may be made from a profiled ferromagnetic material, with holes (T1, T2) extending through two walls thereof to define stator poles (R1a, R2a, R2b) in two rows mutually longitudinally offset by a half pitch.

公开(公告)号：EP0667991B1

公开(公告)日：1997-01-29

申请号：EP93924672.4

申请日：1993-11-03

申请人： ECOLE NORMALE SUPERIEURE DE CACHAN (LESIR)

发明人： LUCIDARME, Jean ,  LECRIVAIN, Michel ,  MULTON, Bernard ,  PREVOND, Laurent

IPC分类号： H02K41/03

CPC分类号： H02K41/033 ,  E05F15/60 ,  H02K2207/03

摘要： A device for a linear actuator, including a mobile assembly (1) moving relative to a stator (2) in a travelling direction (D). The assembly (1) includes an excitation winding (3) and an armature comprising pole pieces (Sa, Sb, Sc) and permanent magnets (Aab, Abc). The stator (2) is a simple guide tube defining the path of the mobile assembly (1), and may be made from a profiled ferromagnetic material, with holes (T1, T2) extending through two walls thereof to define stator poles (R1a, R2a, R2b) in two rows mutually longitudinally offset by a half pitch.