Linear motor

Electrical generator or motor structure – Dynamoelectric – Linear

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310 14, H02K 4102

Patent

active

055980449

ABSTRACT:
A linear motor includes a stator 1 having an even number N of salient poles 11, 12, . . . disposed at an equal angle pitch and a mover 3 disposed movably in a shaft direction. The salient poles are constituted by pairs of salient poles adjacent to each other and including m sets of salient pole groups composed of (N/2m) sets of salient pole pairs disposed at an angle of (720m/N) degrees. Windings W1, W2, . . . wound on (N/m)-1 or (N/m)-2 salient poles belonging to each of the salient pole groups are connected to have opposite polarities between the pair of salient poles and are connected to have the same polarity between the salient poles which do not constitute the pair of salient poles and are disposed to interpose the salient pole of the other phase therebetween to constitute phase windings for m phases. Remaining salient poles of the salient pole group are caused to detect a position and a movement direction of the mover 3 as sensor poles S.sub.A and S.sub.B.

REFERENCES:
patent: 3441819 (1969-04-01), Palmero
patent: 5418413 (1995-05-01), Satomi
patent: 5438227 (1995-08-01), Satomi

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