US 2006/0049699 A1 · Synchronous permanent magnet planar motor

Abstract

According to the invention, configurations of X-windings and Y-windings in a synchronous permanent planar motor are improved, X-windings and Y-windings overlap in the direction normal to the planar magnet array and distribute on the entire surface of the thrust core, such that effective wires in the X-windings and Y-windings are lengthened and increased in number, therefore the electromagnetic force generated by the SPMPM of this invention is increased correspondingly; X-windings and Y-windings are mounted on a thrust core made of iron material, thus the electromagnetic force is further increased; in addition, two separated anti-yawing member are provided on the mover for counteracting yawing of the mover, accordingly interference between anti-yawing torque and the electromagnetic force for propelling is eliminated.

Claims8

Dependent claims

A synchronous permanent magnet planar motor, comprising:

a stator, comprising a planner magnet array, for generating a magnetic field whose polarity periodically alternates in space;
a mover comprising, a thrust core placed opposite the planner magnet array;
X-windings and Y-windings, disposed on a surface of the thrust core facing the planner magnet array;
and
a servo-driver, for supplying alternating electric currents to the X-windings and Y-windings such that
the X-windings generate electromagnetic force in X direction in cooperation with the magnetic field,
and the Y-windings generate electromagnetic force in Y direction in cooperation with the magnetic field,
wherein the X-windings and the Y-windings overlap in a direction perpendicular to the planar magnet array, and are arranged on the whole surface of the thrust core facing the planar magnet array.

5 more elements

Dependencies are inferred from the claim text.

Synchronous permanent magnet planar motor

Life of this patent

Synchronous permanent magnet planar motor

Life of this patent

Abstract

Claims8