Rotating electric machine with permanent magnets and magnetic resistance with improved flux weakening properties
AssigneeValeo Equipements Electriques Moteur
InventorAntoine Dokou Akemakou
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Abstract
The invention concerns a rotating electric machine which includes a stator equipped with armature coils and a rotor mounted rotating inside the stator. The rotor having a series of magnets with alternating polarities juxtaposed with magnetic parts having magnetic resistance, respectively associated with the magnets. Each assembly of one magnet and one associated magnetic part defining a rotor pole wherein some of the poles have alternately, along a generally tangential direction, a magnet followed by its magnetic part and a magnet preceded by its magnetic part. The invention is applicable to motor vehicle alternators and AC starters.
Claims12
A rotating electrical machine, in particular an alternator or combined alternator and starter motor for automobile vehicles, comprising a stator equipped with stator windings and a rotor mounted to rotate inside the stator, the rotor having a series of permanent magnets of alternating polarity juxtaposed with a series of variable reluctance magnetic parts, each said magnetic part respectively associated with each permanent magnet, each combination of a permanent magnet and its associated magnetic part defining one rotor pole, wherein at least some of the poles are arranged, in a circumferential direction, as a permanent magnet of one polarity followed by its associated magnetic part, followed by a second magnetic part associated with a second permanent magnet of an opposite polarity, followed by the second permanent magnet of said opposite polarity.
Dependencies are inferred from the claim text.