US 12,233,704 B2
Cooling device for an electric drive unit of a motor vehicle, drive unit and motor vehicle
Thomas Herrmann, Illerkirchberg (DE); Thinh Nguyen-Xuan, Erding (DE); Fabian Rattei, Weilheim i.OB (DE); Rene Treffler, Augsburg (DE); and Juntao Zhu, Munich (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 17/281,460
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed Oct. 7, 2019, PCT No. PCT/EP2019/077058
§ 371(c)(1), (2) Date Mar. 30, 2021,
PCT Pub. No. WO2020/094314, PCT Pub. Date May 14, 2020.
Claims priority of application No. 10 2018 127 665.6 (DE), filed on Nov. 6, 2018.
Prior Publication US 2022/0006353 A1, Jan. 6, 2022
Int. Cl. B60K 11/02 (2006.01); H02K 5/20 (2006.01)
CPC B60K 11/02 (2013.01) [H02K 5/203 (2021.01)] 15 Claims
OG exemplary drawing
 
1. A cooling device for an electric drive unit of a motor vehicle that is electrically driveable, the electric drive unit being configured to drive at least one component of the drive unit, comprising:
a housing configured to receive the at least one component of the drive unit, the housing, at least in some regions thereof, being a cooling jacket for the at least one component and being configured to cool the at least one component, the cooling jacket having at least one cooling duct through which a cooling fluid is flowable; and
at least one cooling structure that is an insert inserted into the at least one cooling duct and which is configured to increase a flow resistance of the cooling fluid by generating turbulences of the cooling fluid, wherein
the at least one cooling structure includes a first fiber system and a second fiber system that are independent of one another, first fibers in the first fiber system run parallel to one another and second fibers in the a second fiber system run parallel to one another, the first fiber system and the second fiber system being arranged at an angle relative to one another.