US 12,113,413 B2
Electrified vehicle having electric machine stator with embedded wire support overmold
Franco Leonardi, Dearborn Heights, MI (US); Michael W. Degner, Novi, MI (US); Man Prakash Gupta, Dearborn, MI (US); Christopher White, Shenfield (GB); Steven White, Maldon (GB); Gary Thomas Martini, Dexter, MI (US); and Singar Rathnam, Farmington Hills, MI (US)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US)
Filed on Oct. 31, 2021, as Appl. No. 17/515,517.
Prior Publication US 2023/0134509 A1, May 4, 2023
Int. Cl. H02K 3/12 (2006.01); H02K 3/30 (2006.01); H02K 15/00 (2006.01); H02K 15/02 (2006.01); B60K 1/00 (2006.01)
CPC H02K 3/12 (2013.01) [H02K 3/30 (2013.01); H02K 15/0056 (2013.01); H02K 15/024 (2013.01); B60K 1/00 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A vehicle comprising:
a traction battery; and
an electric machine powered by the traction battery and configured to provide propulsive power to the vehicle, the electric machine including a rotor separated by an air gap from a stator surrounding the rotor, the stator including teeth extending from a yoke portion toward the rotor and defining slots between adjacent teeth, the slots coated with an electrically insulating material having an arcuate surface exiting the slots and extending at least partially onto and over the teeth on at least one end face of the stator, the stator further including windings positioned within and extending from the slots in contact with the arcuate surface of the electrically insulating material;
wherein each slot includes a plurality of windings and wherein the electrically insulating material comprises protuberances extending between the plurality of windings over the teeth on the end face of the stator; and
wherein the electrically insulating material forms a ramped surface extending from a lower first curved surface associated with a first slot to a higher second curved surface associated with a second slot, the second slot being adjacent to the first slot.