US 11,750,059 B2
End shield with spray feature
Ronald D. Bremner, Cedar Falls, IA (US)
Assigned to Deere & Company, Moline, IL (US)
Filed by Deere & Company, Moline, IL (US)
Filed on Feb. 7, 2020, as Appl. No. 16/784,295.
Prior Publication US 2021/0249929 A1, Aug. 12, 2021
Int. Cl. H02K 5/20 (2006.01); H02K 9/19 (2006.01)
CPC H02K 5/20 (2013.01) [H02K 9/19 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An end shield for an electric machine, comprising:
a cap having an outer ring concentrically coupled to a hub ring via one or more supports extending radially inward from the outer ring to the hub ring; and
a collar extending orthogonally away from a back side of the cap, the collar including a plurality of apertures circumferentially spaced around the collar,
wherein a diameter of the collar is such that the collar extends between a housing of the electric machine and an end coil of the electric machine when the end shield is mounted to the electric machine, and
wherein the plurality of apertures align with a channel forming a helical path on an interior surface of the housing to circulate a fluid and the plurality of apertures direct the fluid onto the end coil for cooling delivered via the channel.