Electric machine using disc and permanent magnet excitation - has disc rotor carrying high coercivity permanent magnets and uses armature windings, set in epoxy, facing magnets

摘要

The machine can function either as a generator or a motor, and uses permanent magnet excitation with a wound armature in a disc configuration. The permanent magnet material permits high flux density (0.2-0.5 Tesla) with air gaps of 0.5-3 cm, thus permitting the use of armature windings set in epoxy rather than in a laminated iron stack. - The machine is constructed in disc format with the rotor mounted on a shaft which runs in bearings carried in the stator frame. The rotor may carry either the field or the armature, and the stator either armature or field. No brushes are needed if the field is carried on the rotor.(0/3)