Patent ID: 11916447
Assignee: BLACK & DECKER, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A brushless direct-current (BLDC) motor comprising:
a stator including a stator core, a plurality of teeth, and a plurality of windings;
a rotor shaft disposed within the stator and extending along a longitudinal axis; and
a rotor comprising a rotor core including an inner body mounted on the rotor shaft and a plurality of radial projections projecting outwardly from the inner body, a permanent magnet mounted on an outer end of the plurality of radial projections, and a mold structure formed in contact with the plurality of radial projections and configured to secure the permanent magnet to the rotor core,
wherein the plurality of radial projections extends along the longitudinal axis on an outer surface of the inner body forming a plurality of axial channels in between, wherein the mold structure is received within the plurality of axial channels, wherein the plurality of radial projections extends longitudinally beyond an axial end of the inner body of the rotor core, and wherein the mold structure engages the axial end of the inner body.