US 12,191,711 B2
Stator device for an electric machine, and electric machine
Sebastian Waider, Petersberg (DE); Philipp Söntgerath, Niederkrüchten (DE); and Nils Krais, Strahlungen (DE)
Assigned to Valeo Siemens eAutomotive Germany GmbH, Erlangen (DE)
Appl. No. 17/630,307
Filed by Valeo Siemens eAutomotive Germany GmbH, Erlangen (DE)
PCT Filed Jul. 27, 2020, PCT No. PCT/EP2020/071124
§ 371(c)(1), (2) Date Jan. 26, 2022,
PCT Pub. No. WO2021/018831, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 10 2019 120 677.4 (DE), filed on Jul. 31, 2019.
Prior Publication US 2022/0271580 A1, Aug. 25, 2022
Int. Cl. H02K 1/20 (2006.01); H02K 5/20 (2006.01)
CPC H02K 1/20 (2013.01) [H02K 5/203 (2021.01); H02K 5/20 (2013.01); H02K 2213/03 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A stator device for an electric machine, comprising:
a stator body;
a plurality of cooling channels:
configured to cool the stator body,
extend parallel to an axis of the stator body, and
wherein a cross-sectional area of each one of the cooling channels is asymmetric to the axis of the stator body; and
a cooling fluid connection device:
that axially outwardly and radially delimits a circumferentially extending connection channel,
wherein a cross-sectional area of the connection channel is continuous and symmetric to the axis of the stator body,
into which a respective axial end of the cooling channels opens, and
wherein the connection channel extends radially further inward than the cooling channels.