Patent ID: 6787945
Filing Date: 2004-09-07
Classification: H02K

Abstract:
A linear motor comprising:a stator having a magnet support which extends in parallel with the lengthwise direction of the linear motor and whose cross section perpendicular to the lengthwise direction of the linear motor is polygon or circular, said stator further having a plurality of permanent magnet arrays mounted on the outer surface of said magnet support in parallel with the lengthwise direction of the linear motor, said stator being held at both ends thereof by stator supports; and a movable body having a hollow member extending in parallel with the lengthwise direction of the linear motor and surrounding part of said stator, and having a plurality of armature modules each of which comprises an armature core and armature coils mounted thereon, said plurality of armature modules being mounted on the inner surface of said hollow member such that the lengthwise axes thereof are in parallel with the lengthwise direction of the linear motor and such that said armature modules respectively face said permanent magnet arrays with an air gap therebetween.