US 12,081,073 B2
Electric machine with multi-tapered yokes
Oleg Gaspar, Tel Aviv (IL); Victor Kislev, Kfar Yona (IL); Ruslan Shabinski, Maale Adumim (IL); and Eliyahu Rozinsky, Hod Hasharon (IL)
Assigned to EVR MOTORS LTD, Petah Tikva (IL)
Filed by EVR MOTORS LTD, Petah Tikva (IL)
Filed on Dec. 28, 2023, as Appl. No. 18/398,484.
Application 18/398,484 is a continuation in part of application No. 18/382,583, filed on Oct. 23, 2023.
Application 18/382,583 is a continuation of application No. 18/104,426, filed on Feb. 1, 2023, granted, now 11,831,202, issued on Nov. 28, 2023.
Application 18/104,426 is a continuation of application No. 17/882,947, filed on Aug. 8, 2022, granted, now 11,594,920, issued on Feb. 28, 2023.
Application 17/882,947 is a continuation of application No. 17/493,089, filed on Oct. 4, 2021, granted, now 11,451,099, issued on Sep. 20, 2022.
Prior Publication US 2024/0178710 A1, May 30, 2024
Int. Cl. H02K 1/18 (2006.01); H02K 1/02 (2006.01); H02K 1/14 (2006.01); H02K 1/2786 (2022.01); H02K 21/22 (2006.01); H02K 1/16 (2006.01); H02K 1/20 (2006.01); H02K 1/2793 (2022.01); H02K 3/12 (2006.01); H02K 3/14 (2006.01); H02K 3/28 (2006.01); H02K 3/487 (2006.01); H02K 3/493 (2006.01); H02K 3/50 (2006.01); H02K 3/52 (2006.01); H02K 5/18 (2006.01); H02K 9/19 (2006.01); H02K 9/22 (2006.01)
CPC H02K 1/187 (2013.01) [H02K 1/02 (2013.01); H02K 1/14 (2013.01); H02K 1/146 (2013.01); H02K 1/2786 (2013.01); H02K 21/22 (2013.01); H02K 1/165 (2013.01); H02K 1/185 (2013.01); H02K 1/20 (2013.01); H02K 1/2793 (2013.01); H02K 3/12 (2013.01); H02K 3/14 (2013.01); H02K 3/28 (2013.01); H02K 3/487 (2013.01); H02K 3/493 (2013.01); H02K 3/50 (2013.01); H02K 3/525 (2013.01); H02K 5/18 (2013.01); H02K 9/19 (2013.01); H02K 9/22 (2013.01); H02K 9/227 (2021.01); H02K 2201/03 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electric machine, comprising:
a plurality of electromagnetic coils with each electromagnetic coil defining a trapezoidally-shaped and tapered coil opening, wherein the plurality of electromagnetic coils are arranged circumferentially about an axis of rotation of the electric machine;
a plurality of yokes each extending in an axial direction, wherein at least one of the plurality of yokes is tapered in the axial direction; and
a plurality of teeth, wherein at least one tooth of the plurality of teeth extends from each of the plurality of yokes, and wherein the plurality of teeth are each tapered in a radial direction to enable the plurality of teeth to fit within a corresponding trapezoidally-shaped and tapered coil opening,
wherein each yoke of the plurality of yokes is tapered along two edges in the axial direction such that one side of the yoke is wider than another side of the yoke.