US 12,334,786 B2
Disc rotor machine with stator having core segents, with rotor disc with cooling device
Maximilian Bossecker, Hügelsheim (DE); and Holger Witt, Bühl (DE)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 17/632,249
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Jul. 21, 2020, PCT No. PCT/DE2020/100634
§ 371(c)(1), (2) Date Feb. 2, 2022,
PCT Pub. No. WO2021/032236, PCT Pub. Date Feb. 25, 2021.
Claims priority of application No. 10 2019 122 314.8 (DE), filed on Aug. 20, 2019.
Prior Publication US 2022/0278579 A1, Sep. 1, 2022
Int. Cl. H02K 3/24 (2006.01); H02K 1/20 (2006.01); H02K 1/2798 (2022.01); H02K 3/28 (2006.01); H02K 21/24 (2006.01)
CPC H02K 3/24 (2013.01) [H02K 1/20 (2013.01); H02K 1/2798 (2022.01); H02K 3/28 (2013.01); H02K 21/24 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A disc rotor machine for a motor vehicle drive, comprising: a disc-shaped stator, the stator having a plurality of core segments distributed in a circumferential direction and firmly connected to one another by at least one retaining ring, and a plurality of coil windings, each running around a core segment, with a rotor rotatably mounted relative to the stator, the rotor having a first rotor disc, which is arranged on a first axial side next to the stator, and a second rotor disc which is arranged on a second axial side opposite the first axial side next to the stator, wherein the rotor discs can be driven by a plurality of coils of the stator that are distributed in a circumferential direction and include the core segments and the coil windings, as well as by a cooling device which cools the coils during operation, wherein the stator has a carrier wheel which receives the coil windings and is connected to the at least one retaining ring, the carrier wheel forming a cooling channel portion of the cooling device which directly receives at least one of the coil windings, wherein the cooling channel portion is directly limited towards its radial outer side by a plurality of phase rings, which are connected respectively to the coil windings and are stacked next to one another.