Patent ID: 6777832
Filing Date: 2004-08-17
Classification: H02K

Abstract:
A high-thrust linear motor comprising:a magnetic member having a plurality of slots formed in series in an axial direction thereof, said slots extending from both sides of said magnetic member in opposite directions intersecting said axial direction in corresponding relation to each other; coils each wound in a pair of said slots on both sides of said magnetic member; field magnets extending in said axial direction at both sides of said magnetic member so as to face an effective conductor portion of each of said coils, said field magnets each having a plurality of pairs of magnetic poles magnetized in said axial direction; a pair of flat plate covers for covering upper and lower surfaces of said magnetic member and said coils approximately entirely, exclusive of sides of said magnetic member and said coils which face said field magnets; and connecting means for integrally connecting together said pair of flat plate covers, wherein said coils have a plurality of phases and are wound in respective pairs of said slots in said magnetic member in such a manner that each pair of adjacent phases are different in electrical angle from each other.