Patent ID: 11942822
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 15:
16. A method of assembling an electric machine, the method comprising:
receiving a housing of the electric machine;
rotatably attaching a rotor assembly to the housing, the rotor assembly including a rotor core and a magnet mounted to the rotor core; and
mounting a stator assembly coaxial with and separated by an airgap from the rotor assembly, the stator assembly including a stator core defining a plurality of circumferentially spaced stator slots, a plurality of radially aligned stator teeth separating the stator slots, and a plurality of electromagnetic windings located in the stator slots, each of the stator teeth having an elongated tooth body with a tooth head at a radial end of the tooth body, the tooth head having an axial cross-section with a trapezoidal crown integral with a rectangular tip, the trapezoidal crown having an isosceles trapezium shape with a narrow edge parallel to a wide edge, the narrow edge facing the airgap.