US 11,870,316 B2
Brushless motor including a nested bearing bridge
Dustin Jefferies, Baltimore, MD (US); David J. Smith, Columbia, MD (US); Marcus E. E. Rydin, Baltimore, MD (US); Justin H. Ayers, Jarrettsville, MD (US); Sumiteru Mori, Baltimore, MD (US); and Kristopher Cochran, Middle River, MD (US)
Assigned to BLACK & DECKER, INC., New Britain, CT (US)
Filed by Black & Decker Inc., New Britain, CT (US)
Filed on Feb. 1, 2022, as Appl. No. 17/590,001.
Claims priority of provisional application 63/266,197, filed on Dec. 30, 2021.
Claims priority of provisional application 63/144,802, filed on Feb. 2, 2021.
Prior Publication US 2022/0247257 A1, Aug. 4, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H02K 5/15 (2006.01); H02K 3/52 (2006.01); H02K 7/14 (2006.01); H02K 21/16 (2006.01); H02K 11/215 (2016.01); F16C 17/02 (2006.01); H02K 5/173 (2006.01); H02K 11/33 (2016.01); H02K 11/38 (2016.01); H02K 1/2706 (2022.01); F16C 35/06 (2006.01); H02K 5/06 (2006.01); H02K 7/08 (2006.01); B25F 5/02 (2006.01)
CPC H02K 3/522 (2013.01) [F16C 17/02 (2013.01); F16C 35/06 (2013.01); H02K 1/2706 (2013.01); H02K 5/06 (2013.01); H02K 5/1732 (2013.01); H02K 7/083 (2013.01); H02K 7/145 (2013.01); H02K 11/215 (2016.01); H02K 11/33 (2016.01); H02K 11/38 (2016.01); H02K 21/16 (2013.01); B25F 5/02 (2013.01); F16C 2380/26 (2013.01); H02K 2203/03 (2013.01); H02K 2211/03 (2013.01); H02K 2213/03 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A motor comprising:
a motor housing having a substantially cylindrical body and at least one open end;
a stator disposed within the motor housing, the stator including a stator core, a plurality of stator windings, and an end insulator including a plurality of teeth configured to electrically insulate the stator core from the plurality of stator windings and an annular body extending away from the stator core;
a rotor rotatably received within the stator and including a rotor shaft extending along a longitudinal axis and a plurality of permanent magnets; and
a bearing bridge including a center pocket arranged to support a bearing of the rotor shaft,
wherein the bearing bridge is received at least partially within the end insulator, the annular body of the end insulator includes at least one peripheral opening located within the motor housing, and the bearing bridge is radially piloted relative to the motor housing via a retaining member received through the at least one peripheral opening.