US 11,813,831 B2
Electric machine with locally-tuned properties
Leyi Zhu, Novi, MI (US); Michael W. Degner, Novi, MI (US); and Feng Liang, Troy, MI (US)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by Ford Global Technologies, LLC, Dearborn, MI (US)
Filed on Jul. 14, 2021, as Appl. No. 17/375,244.
Application 17/375,244 is a division of application No. 16/123,323, filed on Sep. 6, 2018, granted, now 11,065,857.
Prior Publication US 2021/0339520 A1, Nov. 4, 2021
Int. Cl. B32B 38/04 (2006.01); H02K 15/00 (2006.01); H02K 1/12 (2006.01)
CPC B32B 38/04 (2013.01) [H02K 1/12 (2013.01); H02K 15/0006 (2013.01); B32B 2038/042 (2013.01); Y10T 29/5313 (2015.01); Y10T 29/53143 (2015.01)] 4 Claims
OG exemplary drawing
 
1. An electric machine comprising:
a lamination stack including exterior laminations and interior laminations disposed therebetween, the interior and exterior laminations including inner cutouts disposed in alignment, wherein at least a portion of the inner cutouts of the exterior laminations have a width greater than inner cutouts of the interior laminations and wherein the exterior laminations have a stepped interface extending parallel to and planarly offset from exterior surfaces of the exterior laminations; and
a core deposit having a lower magnetic permeability than the lamination stack disposed within the inner cutouts of the interior and exterior laminations.