Linear pulse motor

Details Linear pulse motor Linear pulse motor

1996-12-20

1997-12-02

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Linear

310 49R, 318115, H02K 4100

Patent

active

056939892

ABSTRACT:
A linear pulse motor includes a stator core manufactured easily and windings for phases disposed in the circumferential direction of the stator core and the length thereof is not lengthened in the shaft direction even when a multi-phase linear pulse motor is configured. The linear pulse motor includes a stator 1 having teeth 17 formed on an inner peripheral surface thereof in the shaft direction and a plurality of salient poles 11, 12, 13, . . . disposed at an equal pitch angle and a mover disposed movably in the shaft direction. A stator core 10 is formed by laminating stator iron plates 30 with the stator iron plates being rotated sequentially by a predetermined angle. When k is an integer larger than or equal to 1 and m is the number of phase, the stator iron plate includes k.multidot.m salient poles P1, P2, P3, . . . . One salient pole having a smaller inner radius at the tip thereof and (m-1) salient poles having a larger inner radius at the tip thereof opposite to the mover as viewed from the mover are disposed side by side in order of the description to form one set of salient poles and the stator core is constituted to have k sets of salient poles. The predetermined angle for the lamination and rotation is (360/k.multidot.m) degrees.

REFERENCES:
patent: 3370191 (1968-02-01), Koch
patent: 4810914 (1989-03-01), Karidis et al.
patent: 5093596 (1992-03-01), Hammer
patent: 5418413 (1995-05-01), Sutumi

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