US 12,334,777 B2
Stator housing for an electrical machine, electrical machine for a vehicle, and vehicle
Nils Krais, Strahlungen (DE); and Philipp Söntgerath, Niederkrüchten (DE)
Assigned to Valeo Siemens eAutomotive Germany GmbH, Erlangen (DE)
Appl. No. 17/783,371
Filed by Valeo Siemens eAutomotive Germany GmbH, Erlangen (DE)
PCT Filed Dec. 3, 2020, PCT No. PCT/EP2020/084361
§ 371(c)(1), (2) Date Jun. 8, 2022,
PCT Pub. No. WO2021/115895, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 10 2019 133 548.5 (DE), filed on Dec. 9, 2019.
Prior Publication US 2023/0013463 A1, Jan. 19, 2023
Int. Cl. H02K 5/18 (2006.01); H02K 1/20 (2006.01); H02K 5/20 (2006.01); H02K 9/19 (2006.01)
CPC H02K 1/20 (2013.01) [H02K 9/19 (2013.01); H02K 5/18 (2013.01); H02K 5/203 (2021.01)] 15 Claims
OG exemplary drawing
 
1. A stator housing for an electrical machine, comprising:
an inlet for a cooling fluid;
an outlet for the cooling fluid;
a cooling duct formed between the inlet and the outlet and through which the cooling fluid flows in a direction of flow directed from the inlet to the outlet,
wherein the cooling duct has a first heat transfer arrangement and a second heat transfer arrangement, which each extend along the direction of flow and are designed to transfer heat from the cooling fluid to the stator housing,
wherein the first heat transfer arrangement is arranged in a first section of the cooling duct and the second heat transfer arrangement is arranged in a second section of the cooling duct that is on the inlet side with respect to the first section,
wherein the first heat transfer arrangement in the first section creates a larger heat transfer area for the cooling fluid per unit of length based on the direction of flow than the second heat transfer arrangement in the second section.