Electric motor
AssigneeElectric Vehicle Systems and Technology Pty Ltd
InventorsDuncan Richard Quick, Duncan John Hedditch
Life of this patent
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Abstract
A low voltage high current permanent magnet DC electromagnetic heteropolar motor, including (a) at least one permanent magnet rotor; 48 (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.
Claims24
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 circumferentially distributed and radially directed slots therein that define corresponding radially directed elongate electrically conductive bars, wherein the bars extend radially from a common inner conducting ring, such that said at least one stator winding is formed by the bars.
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Dependencies are inferred from the claim text.