FIELD: electrical equipment.
SUBSTANCE: invention relates to the field of electrical equipment. Rotary electrical machine comprises a stator including stator core and stator winding wound around the stator core, annular outer rotor including outer core placed around the outer periphery of the stator and a plurality of external magnets located at intervals in circumferential direction. Stator core has an annular yoke and a plurality of outer teeth projecting radially outward from the outer periphery of the yoke. External magnets are magnetized in circumferential direction so that the directions of magnetization of external magnets neighboring to each other in circumferential direction are opposite to each other in circumferential direction. Circumferential distance between the external magnets neighboring to each other exceeds 1.5 time or more then step of the outer teeth in circumferential direction.
EFFECT: improving efficiency of machine.
5 cl, 9 dwg
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Authors
Dates
2018-08-20—Published
2017-11-01—Filed