US 11,942,850 B2
Electrical machine with an integrated heat exchanger
Bernd Haas, Erlangen (DE); and Burkhard Pollak, Erlangen (DE)
Assigned to Valeo Siemens eAutomotive Germany GmbH, Erlangen (DE)
Filed by Valeo Siemens eAutomotive Germany GmbH, Erlangen (DE)
Filed on Nov. 22, 2021, as Appl. No. 17/456,020.
Claims priority of application No. 10 2020 214 829.5 (DE), filed on Nov. 25, 2020.
Prior Publication US 2022/0166285 A1, May 26, 2022
Int. Cl. H02K 5/20 (2006.01); H02K 7/00 (2006.01); H02K 7/08 (2006.01); H02K 7/116 (2006.01)
CPC H02K 5/20 (2013.01) [H02K 7/003 (2013.01); H02K 7/006 (2013.01); H02K 7/08 (2013.01); H02K 7/116 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An electrical machine, comprising:
a housing;
a stator which is arranged in and fixedly connected to the housing; and
a rotor which is arranged in the housing, is arranged on a rotor shaft and is mounted rotatably about the axis of rotation of the rotor and the rotor shaft in relation to the stator,
wherein the housing has at least one first coolant duct of a first cooling circuit in the region of the stator,
wherein at least one second coolant duct of a second cooling circuit is arranged in the region of the stator in the housing, and the housing of the electrical machine forms a heat exchanger between the first cooling circuit and the second cooling circuit, and
wherein the at least one first coolant duct, inside which coolant fluid flows separately from the at least one second coolant duct, is encapsulated in the housing of the electrical machine and the at least one second coolant duct, inside which the coolant fluid flows separately and in an opposite direction from the at least one first coolant duct, is formed by a pipe which is encapsulated inside the at least one first coolant duct.