Linear motor

专利名称：Linear motor

发明人：Hirobumi Satomi,Takao Iwasa申请号：US08/315063申请日：19940929公开号：US05602431A公开日：19970211

摘要：A linear motor is operated as an m-phase linear pulse motor or a brushless DClinear motor capable of producing large driving force. The linear motor includes an evennumber N of salient poles 11, 12, . . . disposed at an equal pitch angle and includes astator 1 having a plurality of permanent magnet poles disposed on inner peripheralsurfaces of the salient poles to have polarities different from each other in the shaftdirection and a mover 3 disposed movably in the shaft direction. The salient poles areconstituted by pairs of the salient poles adjacent to each other and include m sets ofsalient pole groups each composed of (N/m) salient poles disposed at an angle of (720m/N) degrees and windings W1, W2, . . . wound on (N/m)-1 or (N/m)-2 salient polesbelonging to the salient pole groups are connected to have opposite polarities betweenthe pair of salient poles and are connected to have the same polarity between the salientpoles which do not constitute the pair of salient poles and are disposed to interpose thesalient poles for the other phase to constitute phase windings for m phases. Remainingsalient poles of the salient pole group are caused to detect a position and a movementdirection of the mover 3 as sensor poles S.sub.A and S.sub. B.

申请人：ORIENTAL MOTOR CO., LTD.

代理机构：Jacobson, Price, Holman & Stern, PLLC

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