US 12,334,800 B2
Electric drive comprising heat exchanger section between oil and a cooling fluid
Inaki Fernandez, Nuremberg (DE); and Philipp Mattes, Herzogenaurach (DE)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 17/602,297
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Apr. 7, 2020, PCT No. PCT/DE2020/100282
§ 371(c)(1), (2) Date Oct. 8, 2021,
PCT Pub. No. WO2020/207537, PCT Pub. Date Oct. 15, 2020.
Claims priority of application No. 10 2019 109 313.9 (DE), filed on Apr. 9, 2019.
Prior Publication US 2022/0190685 A1, Jun. 16, 2022
Int. Cl. H02K 9/193 (2006.01); B60K 1/00 (2006.01); H02K 5/18 (2006.01); H02K 5/20 (2006.01)
CPC H02K 9/193 (2013.01) [B60K 1/00 (2013.01); H02K 5/18 (2013.01); H02K 5/203 (2021.01); B60K 2001/005 (2013.01); B60K 2001/006 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An electric drive for a vehicle, comprising:
at least one electric motor for generating a drive torque;
a supply device for supplying the electric motor with electrical energy;
a transmission for guiding the drive torque;
an oil circuit for supplying the transmission with oil;
a cooling circuit for cooling the supply device or the electric motor with a coolant;
a heat exchanger portion coupled on a first side to the cooling circuit and on a second side to the oil circuit;
a supply housing region, the supply device being arranged in the supply housing region and the heat exchanger portion forming a wall portion of the supply housing region;
an end cover closing the heat exchanger portion;
wherein the end cover has functional regions, wherein the functional regions are formed at least by a counterpart cooling structure facing the heat exchanger portion and by an oil sump region, wherein a surface of the end cover is enlarged by the counterpart cooling structure in the region of the counterpart cooling structure relative to one of a plurality of base surfaces of the end cover on which the counterpart cooling structure is formed on the end cover;
wherein the wall portion has an outer cooling structure, wherein the outer cooling structure and the counterpart cooling structure together form an oil guide region, wherein the oil flows through the oil guide region; and
wherein the counterpart cooling structure is arranged higher than the oil sump region in an installed position, and the oil sump region is laterally offset from the counterpart cooling structure.