	US 11,735,972 B2
	Overlapped end caps for stator core
Daniel E. Bailey, Ballwin, MO (US); Chetan O. Modi, Valley Park, MO (US); Paul G. Michaels, St. Louis, MO (US); Jahir Flores, San Nicolas de los Garza (MX); and Ryan M. Bastien, St. Charles, MO (US)
Assigned to Nidec Motor Corporation, St. Louis, MO (US)
Filed by Nidec Motor Corporation, St. Louis, MO (US)
Filed on Dec. 30, 2022, as Appl. No. 18/148,611.
Application 18/148,611 is a division of application No. 16/862,641, filed on Apr. 30, 2020, granted, now 11,616,411.
Claims priority of provisional application 62/948,683, filed on Dec. 16, 2019.
Prior Publication US 2023/0136725 A1, May 4, 2023
Int. Cl. H02K 3/48 (2006.01); H02K 3/12 (2006.01); H02K 1/16 (2006.01); H02K 3/34 (2006.01); H02K 3/487 (2006.01); H02K 5/15 (2006.01); H02K 5/02 (2006.01); H02K 5/04 (2006.01)

CPC H02K 3/48 (2013.01) [H02K 1/165 (2013.01); H02K 3/12 (2013.01); H02K 3/345 (2013.01); H02K 3/487 (2013.01); H02K 5/02 (2013.01); H02K 5/04 (2013.01); H02K 5/15 (2013.01)]

9 Claims

1. A stator comprising:

a generally toroidal core presenting axially opposed first and second core faces;

a first end cap fitted to the core;

a second end cap fitted to the core; and

wiring wound about the core,

said end caps extending toward each other and between the upper and lower core faces to at least in part encompass the core,

said end caps being at least in part disposed between the wiring and the core,

said end caps cooperatively defining an axially extending trough receiving at least a portion of said wiring,

said end caps cooperatively defining a generally radially projecting, generally axially extending wire barrier defining a generally circumferential margin of the trough,

said wire barrier including axially opposed ends, wherein the first end cap defines a first one of the ends and the second end cap defines a second one of the ends,

each of said ends forming a respective rounded winding ramp configured to smoothly guide wiring into the trough during wiring of the core.