US 11,658,530 B2
Modular brushless DC (BLDC) motor construction
Yulanda King, Amherst, NY (US); and Jihcheng Lin, Novi, MI (US)
Assigned to Stoneridge, Inc., Novi, MI (US)
Filed by Stoneridge, Inc., Novi, MI (US)
Filed on Jul. 15, 2021, as Appl. No. 17/376,228.
Prior Publication US 2023/0019247 A1, Jan. 19, 2023
Int. Cl. H02K 1/27 (2022.01); H02K 1/2793 (2022.01); H02K 3/28 (2006.01); H02K 37/12 (2006.01); H02K 5/173 (2006.01); H02K 7/08 (2006.01); H02K 1/16 (2006.01)
CPC H02K 1/2793 (2013.01) [H02K 1/165 (2013.01); H02K 3/28 (2013.01); H02K 5/1735 (2013.01); H02K 7/083 (2013.01); H02K 37/125 (2013.01)] 18 Claims
OG exemplary drawing
1. A brushless DC motor (BLDC) comprising:
a stator including a ring-shaped body having multiple stator posts extending axially outward from the ring-shaped body, a plurality of stator windings wherein each of the stator windings is wound about a corresponding one of the stator posts, and a rotor support structure positioned radially inward of the multiple stator posts;
a rotor including a shaft received in the rotor support structure, a first rotor disk fixed to a first end of the shaft, at least a first set of magnets disposed in a first ring about the rotor disk and positioned radially adjacent to the stator posts such that the first set of magnets and the stator windings define a first radial flux flowpath; and
a second set of magnets disposed in a second ring and positioned relative to the stator posts in one of an axial adjacency or a radial adjacency such that a second flux flowpath is defined, the second ring being distinct from the first ring.