US 12,424,891 B2
Adhesive mixture including hard magnetic material for e-machine rotor
Franco Leonardi, Dearborn Heights, MI (US); Chuanbing Rong, Canton, MI (US); Chun Tang, Canton, MI (US); Wanfeng Li, Novi, MI (US); and Michael W. Degner, Novi, MI (US)
Assigned to FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US)
Filed by FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US)
Filed on Apr. 21, 2023, as Appl. No. 18/304,924.
Application 18/304,924 is a continuation of application No. 16/567,720, filed on Sep. 11, 2019, granted, now 11,637,467.
Prior Publication US 2023/0253843 A1, Aug. 10, 2023
Int. Cl. H02K 1/27 (2022.01); H02K 1/276 (2022.01); H02K 1/28 (2006.01)
CPC H02K 1/28 (2013.01) [H02K 1/276 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A rotor for an electric machine comprising:
a core comprised of stacked laminations that define a generally V-shaped pocket between a hub portion and a pole portion; and
a cured mixture, filling the pocket and including an adhesive and a magnetic powder, having a volume ratio that increases as a distance normal from a centerline that bisects the pocket increases such that for a unit volume of the cured mixture, a volume of the magnetic powder increases relative to a volume of the adhesive as the distance increases.