US 12,009,722 B2
Electric machine
Peter Sever, Murska Sobota (SI)
Assigned to Mahle International GmbH, (DE)
Appl. No. 17/276,118
Filed by Mahle International GmbH, Stuttgart (DE)
PCT Filed Jul. 24, 2019, PCT No. PCT/EP2019/069903
§ 371(c)(1), (2) Date Mar. 12, 2021,
PCT Pub. No. WO2020/052846, PCT Pub. Date Mar. 19, 2020.
Claims priority of application No. 10 2018 215 608.5 (DE), filed on Sep. 13, 2018.
Prior Publication US 2022/0037950 A1, Feb. 3, 2022
Int. Cl. H02K 5/12 (2006.01); B60L 50/51 (2019.01); H02K 5/128 (2006.01); H02K 5/173 (2006.01); H02K 5/18 (2006.01); H02K 9/22 (2006.01); H02K 5/20 (2006.01)
CPC H02K 5/128 (2013.01) [B60L 50/51 (2019.02); H02K 5/1732 (2013.01); H02K 5/18 (2013.01); H02K 9/22 (2013.01); H02K 9/223 (2021.01); H02K 9/227 (2021.01); H02K 5/203 (2021.01)] 29 Claims
OG exemplary drawing
 
1. An electric machine for a vehicle, comprising:
a stator and a rotor rotatable relative to the stator about a rotational axis that defines an axial direction,
a housing at least partially surrounding a housing interior, wherein the housing includes a first housing part and a second housing part that bound the housing interior, and the rotor is rotatably mounted on the first housing part and the second housing part via a bearing device,
at least one heat transmission body is arranged along the axial direction between at least one of the first housing part and the second housing part and the rotor, the at least one heat transmission body bounds, together with the at least one of the first housing part and the second housing part, a coolant space through which a coolant can flow,
wherein the bearing device comprises a first bearing element and a second bearing element that are arranged at an axial distance from one another, such that the rotor is arranged axially between the first bearing element and the second bearing element, and
wherein the axial position of the first bearing element and the second bearing element is defined such that that less than about 35% of the radial forces taken up by the first bearing element and the second bearing element are passed on to the at least one heat transmission body.