US 12,095,324 B2
Stator winding with integrated cooling
Ayman Mohamed Fawzi El-Refaie, Pewaukee, WI (US); and Fan Wu, Milwaukee, WI (US)
Assigned to Marquette University, Milwaukee, WI (US)
Filed by Marquette University, Milwaukee, WI (US)
Filed on Mar. 23, 2022, as Appl. No. 17/702,575.
Application 17/702,575 is a continuation in part of application No. PCT/US2020/052642, filed on Sep. 25, 2020.
Claims priority of provisional application 63/068,764, filed on Aug. 21, 2020.
Claims priority of provisional application 62/907,138, filed on Sep. 27, 2019.
Prior Publication US 2022/0320933 A1, Oct. 6, 2022
Int. Cl. H02K 3/24 (2006.01); H02K 3/28 (2006.01); H02K 3/48 (2006.01); H02K 15/04 (2006.01)
CPC H02K 3/24 (2013.01) [H02K 3/28 (2013.01); H02K 3/48 (2013.01); H02K 15/0407 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A winding comprising:
a first plurality of conductive leg members arranged in layers in a first stacked configuration, the layers including at least a top and a bottom layer; and
a second plurality of conductive leg members arranged in layers in a second stacked configuration parallel to the first stacked configuration, the layers including at least a top and a bottom layer;
wherein the leg member in the top layer of the stacked configuration of the first plurality of leg members is connected as follows:
(i) at a first end to a leg member of the second plurality of leg members in a corresponding layer in the second stacked configuration; and
(ii) at a second end to a leg member of the second plurality of leg members in an adjacent layer to the corresponding layer in the second stacked configuration; and
(iii) successive layers of leg members in the first plurality are connected as defined in (i) and (ii) until a bottom layer is reached, such that at least one of the first and second ends of the leg member in the second plurality of leg members remains unconnected in the top layer and at least one of the first and second ends of the leg member in the first plurality of leg members remains unconnected at the bottom layer, forming a coil configured to be connected to a power supply; and
wherein the connections between the first and second plurality of leg members are solid, and wherein at least one duct is formed extending through at least one of the first and second ends of at least one of the first and second plurality of leg members.