US 12,009,732 B2
Electrical machine winding having improved cooling
Sabrina Ayat, Moissy-Cramayel (FR); Camel Serghine, Moissy-Cramayel (FR); and Thomas Klonowski, Moissy-Cramayel (FR)
Assigned to SAFRAN, Paris (FR); and SAFRAN HELICOPTER ENGINES, Bordes (FR)
Appl. No. 17/432,245
Filed by SAFRAN, Paris (FR); and SAFRAN HELICOPTER ENGINES, Bordes (FR)
PCT Filed Feb. 19, 2020, PCT No. PCT/FR2020/050311
§ 371(c)(1), (2) Date Aug. 19, 2021,
PCT Pub. No. WO2020/169929, PCT Pub. Date Aug. 27, 2020.
Claims priority of application No. 1901775 (FR), filed on Feb. 21, 2019.
Prior Publication US 2022/0190686 A1, Jun. 16, 2022
Int. Cl. H02K 9/20 (2006.01); H02K 9/22 (2006.01)
CPC H02K 9/20 (2013.01) [H02K 9/225 (2021.01)] 12 Claims
OG exemplary drawing
 
1. An assembly comprising a stator, wherein the stator includes a plurality of teeth protruding from the stator such that each of the plurality of teeth forms a cooler in contact with conductors of a winding, the winding being formed from a plurality of conductors having a coil body and coil heads, the cooler comprising a container forming a heat dissipator and comprising a phase change material having the ability to absorb a surplus quantity of heat when the conductors of the winding are subject to an increase in their current density, wherein the heat dissipator is composed of at least two hollow parts separate and nestable with one another and intended to house the phase change material and wherein the heat dissipator is interposed between the coil body and the coil heads.