Electric motor
First Claim
Patent Images
1. A permanent magnet DC electromagnetic heteropolar motor, including:
- (a) at least one permanent magnet rotor;
(b) a shaft in mechanical communication with the rotor such that axial rotation of the rotor causes axial rotation of the shaft;
(c) a stator including at least one stator winding; and
(d) a plurality of switches, each functioning to provide commutation switching for the stator so as to generate a torque on the rotor and thereby cause said axial rotation of the shaft,wherein the stator includes a stator disc having circumferentially distributed and radially directed slots therein that define corresponding radially directed elongate electrically conductive bars, wherein said at least one stator winding is formed by the bars, the bars being planar and extending radially from a common inner electrically conducting ring that is continuous in a circumferential direction, wherein the common inner electrically conducting ring connects radially inner ends of at least three of the elongate bars to each other such that alternating current (AC) signals can flow along the elongate bars of the stator in alternating radial directions so as to generate a torque on the rotor and thereby cause the axial rotation of the shaft.
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Accused Products
Abstract
A low voltage high current permanent magnet DC electromagnetic heteropolar motor, including (a) at least one permanent magnet rotor; (b) a shaft in mechanical communication with the rotor such that axial rotation of the rotor causes axial rotation of the shaft; (c) at least one stator winding; (d) a plurality of switches, each functioning to provide commutation switching for the stator so as to generate a torque on the rotor and thereby cause said axial rotation of the shaft, wherein a terminal voltage of said machine is equal to the voltage of one electrochemical cell, and wherein the power of said machine is at least 1 kW.
17 Citations
15 Claims
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1. A permanent magnet DC electromagnetic heteropolar motor, including:
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(a) at least one permanent magnet rotor; (b) a shaft in mechanical communication with the rotor such that axial rotation of the rotor causes axial rotation of the shaft; (c) a stator including at least one stator winding; and (d) a plurality of switches, each functioning to provide commutation switching for the stator so as to generate a torque on the rotor and thereby cause said axial rotation of the shaft, wherein the stator includes a stator disc having circumferentially distributed and radially directed slots therein that define corresponding radially directed elongate electrically conductive bars, wherein said at least one stator winding is formed by the bars, the bars being planar and extending radially from a common inner electrically conducting ring that is continuous in a circumferential direction, wherein the common inner electrically conducting ring connects radially inner ends of at least three of the elongate bars to each other such that alternating current (AC) signals can flow along the elongate bars of the stator in alternating radial directions so as to generate a torque on the rotor and thereby cause the axial rotation of the shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification