| 摘要 |
PROBLEM TO BE SOLVED: To obtain a cylinder-type linear synchronous motor in which a magnetic pole part is excited without an excitation winding to the magnetic pole part of a stator core, with thrust force larger than that of a cylinder-type linear stepping motor. SOLUTION: A movable unit 32 is constituted by fitting annular permanent magnets 31a to 31h so as to arrange an N/S pole alternately in the direction of an axial line in a magnet mounting part 30 of a magnet mounting body 29 fixed to a direct acting shaft 27. A plurality of stator cores 35 are fixed to an inner wall part of a frame 5 with an equal gap provided in a perimeter direction of the movable unit 32. As excitation windings 39a to 39e, an annular winding, formed by annularly winding a winding conductor so as to respectively surround the circumference of the movable unit 32 in the perimeter direction, is used. Parts of the excitation windings 39a to 39e are fitted respectively to slots formed between two magnetic pole parts 35c adjacent in the direction of the axial line of a plurality of the stator cores 35. COPYRIGHT: (C)2004,JPO&NCIPI
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