Back to results
US 2012/0256514 A1Published application
Brushless synchronous motor
AssigneeBrose Fahrzeugteile GmbH & Co. Kommanditgesellschaft
InventorsJacek Junak, Grzegorz Ombach
Life of this patent
Estimating the term…
Abstract
A brushless synchronous motor includes a rotor having a number n of embedded permanent magnets and being rotatable relative to a stator having a number of stator teeth provided with a three-phase stator winding, while forming an air gap. An angle between two adjacent permanent magnets is 360°/n where n>8, an angle between two adjacent stator teeth is 360°/n+2, and an inner contour of the stator facing the rotor has a curved structure with curvature valleys provided at ends of the stator teeth.
Claims10
A brushless synchronous motor, comprising:
- a stator having a number of stator teeth provided with ends and a three-phase stator winding;
- a rotor configured to rotate relative to said stator, said rotor having a number n of embedded permanent magnets;
- said stator and said rotor forming an air gap therebetween;
- said permanent magnets defining an angle between two adjacent permanent magnets of 360°/n, where n>8;
- said stator teeth defining an angle between two adjacent stator teeth of 360°/n+2;
- and
- said stator having an inner contour facing said rotor, said inner contour having a curved structure with curvature valleys provided at said ends of said stator teeth.
4 more elements
Dependencies are inferred from the claim text.