公开(公告)号：US10686357B2

公开(公告)日：2020-06-16

申请号：US15594117

申请日：2017-05-12

Applicant: OTIS ELEVATOR COMPANY

Inventor： Zbigniew Piech ,  Amy Robinson

IPC: H02K41/03 ,  H02K1/17 ,  B66B13/08 ,  E05F15/60 ,  E05F17/00 ,  B66B9/00

Abstract: A permanent magnet linear motor. The permanent magnet linear motor including a primary comprising a magnetically permeable core having a first face surface on a first side of the core a plurality of teeth forming a plurality of slots on the first side, and a plurality of multi-phase windings wound to have segments thereof in the slots forming a plurality of magnetic poles at each of the first face surfaces; a permanent magnet pair of opposing polarity configured to produce magnetic flux and cause the primary to exert a force on the secondary when the plurality of multiphase windings are excited by a multiphase source; and a passive ferromagnetic secondary adjacent to but spaced from the first face surface, the passive ferromagnetic secondary being moveable with respect to the primary.

公开(公告)号：US20180331610A1

公开(公告)日：2018-11-15

申请号：US15594117

申请日：2017-05-12

Applicant: OTIS ELEVATOR COMPANY

Inventor： Zbigniew Piech ,  Amy Robinson

IPC: H02K41/03 ,  E05F17/00 ,  E05F15/60 ,  B66B13/08

CPC classification number: H02K41/033 ,  B66B9/00 ,  B66B13/08 ,  E05F15/60 ,  E05F17/004 ,  E05F2017/005 ,  E05Y2900/104 ,  H02K1/17

Abstract: A permanent magnet linear motor. The permanent magnet linear motor including a primary comprising a magnetically permeable core having a first face surface on a first side of the core a plurality of teeth forming a plurality of slots on the first side, and a plurality of multi-phase windings wound to have segments thereof in the slots forming a plurality of magnetic poles at each of the first face surfaces; a permanent magnet pair of opposing polarity configured to produce magnetic flux and cause the primary to exert a force on the secondary when the plurality of multiphase windings are excited by a multiphase source; and a passive ferromagnetic secondary adjacent to but spaced from the first face surface, the passive ferromagnetic secondary being moveable with respect to the primary.