US 12,015,323 B2
Stator cooling housing for a stator of a rotary electric motor
Johann Pourchet, La Chaux de Gilley (FR); Dmitry Chechenev, Neuchatel (CH); and Ivan Garcia-Herreros, St-Sulpice (CH)
Assigned to ETEL S.A., Motiers (CH)
Filed by ETEL S.A., Motiers (CH)
Filed on Nov. 25, 2021, as Appl. No. 17/535,594.
Claims priority of application No. 20213038 (EP), filed on Dec. 10, 2020.
Prior Publication US 2022/0190674 A1, Jun. 16, 2022
Int. Cl. H02K 5/20 (2006.01); H02K 9/00 (2006.01); H02K 9/16 (2006.01); H02K 9/19 (2006.01); H02K 15/14 (2006.01)
CPC H02K 5/20 (2013.01) [H02K 5/203 (2021.01); H02K 9/00 (2013.01); H02K 9/16 (2013.01); H02K 9/19 (2013.01); H02K 15/14 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A stator cooling housing for a stator of a rotary electric motor, the stator cooling housing comprising:
a cylindrical frame adapted to be mounted around an iron core and having an outer lateral surface and inlet and outlet channels;
a cylindrical jacket arranged against the outer lateral surface of the cylindrical frame, wherein the cylindrical jacket comprises an inner side having a plurality of cylindrical grooves forming with the outer lateral surface of the cylindrical frame adjacent fluid cooling channels arranged around the cylindrical frame from a frame upper portion to a frame lower portion; and
fluid communication portions arranged such that a cooling fluid is enabled to run from the inlet channel, through the adjacent fluid cooling channels from the frame upper portion to the frame lower portion, and through the outlet channel to form a cooling circuit,
wherein each of the fluid communication portions comprises a flat surface machined into the outer lateral surface of the cylindrical frame, the flat surfaces being disposed opposite to the inner side of the cylindrical jacket.