LINEAR MOTOR - TOSHIBA KK

Title:

LINEAR MOTOR

Document Type and Number:

WIPO Patent Application WO/2010/074112

Kind Code:

A1

Abstract:

Disclosed is a linear motor formed by being provided with: an outside permanent magnet row (11) formed by placing arc-shaped permanent magnets side-by-side such that the magnetic poles thereof are rotated a maximum of 90 degrees at a time for a cross section which includes the central axis thereof; a field equipped with an inside permanent magnet row (15) for which the magnetic poles of ring-shaped permanent magnets have a magnetization vector radial direction component with the same orientation as the outside permanent magnet row (11) and have a magnetization vector axial direction component with an orientation opposite to that of the outside permanent magnet row (11); an armature equipped with a ring-shaped three-phase coil (31) which is supported to be movable in the axial direction of the ring between the outside permanent magnet row (11) and the inside permanent magnet row (15); and a drive device (9) which generates a prescribed thrust in the armature. Thus, it is possible to cause a strong magnetic flux to be linked in the armature coil without using a core, and the magnetic flux of the field is linked in the entire armature coil.

Inventors:

MORISHITA MIMPEI (JP)
MISU DAISUKE (JP)
MIZUNO SUEYOSHI (JP)

Application Number:

PCT/JP2009/071378

Publication Date:

July 01, 2010

Filing Date:

December 24, 2009

Export Citation:

Click for automatic bibliography generation Help

Assignee:

TOSHIBA KK (JP)
MORISHITA MIMPEI (JP)
MISU DAISUKE (JP)
MIZUNO SUEYOSHI (JP)

International Classes:

H02K41/03; H02P25/06

Foreign References:

JP2001008430A	2001-01-12
JP2001086725A	2001-03-30
JP2003333823A	2003-11-21
JPS6292757A	1987-04-28
JP2000083364A	2000-03-21
JP2004350427A	2004-12-09
JP2006262603A	2006-09-28
JP2006187116A	2006-07-13
JP2007019127A	2007-01-25
JP2007082352A	2007-03-29

Other References: