US 11,658,541 B2
Unenclosed electric traction machine
Stefan Wild, Wiener Neudorf (AT); and Philipp Samstag, Wiener Neudorf (AT)
Assigned to TRAKTIONSSYSTEME AUSTRIA GMBH, Wiener Neudorf (AT)
Appl. No. 17/312,199
Filed by TRAKTIONSSYSTEME AUSTRIA GMBH, Wiener Neudorf (AT)
PCT Filed Jun. 30, 2020, PCT No. PCT/EP2020/068354
§ 371(c)(1), (2) Date Jun. 9, 2021,
PCT Pub. No. WO2021/058152, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 19200030 (EP), filed on Sep. 27, 2019.
Prior Publication US 2022/0052577 A1, Feb. 17, 2022
Int. Cl. H02K 5/20 (2006.01); H02K 9/22 (2006.01); H02K 5/15 (2006.01); H02K 5/173 (2006.01); H02K 9/19 (2006.01)
CPC H02K 5/20 (2013.01) [H02K 5/15 (2013.01); H02K 5/173 (2013.01); H02K 5/203 (2021.01); H02K 9/19 (2013.01); H02K 9/227 (2021.01)] 19 Claims
OG exemplary drawing
 
1. An unenclosed electric traction machine, with a stator built up from a stator laminated core, and a rotor shaft with a rotor, mounted on the latter, built up from a rotor laminated core, wherein the stator laminated core is arranged between two essentially rectangular outer pressing plates, and at least one bearing shield, which in each case has a bearing for the rotor shaft, wherein, along a section of the periphery of the stator laminated core, and spaced apart from the stator laminated core, at least one cover, designed as a tension bar between the pressing plates, is arranged between the pressing plates so as to form at least one cooling box, with a base on the surface of the stator laminated core, and wherein at least one intermediate space is disposed between the base and the at least one cover of the cooling box and the at least one intermediate space is designed for the routing of a cooling fluid.