US 12,218,551 B2
Rotor carrier for an electric machine and electric machine having the same
Steffen Matschas, Bad Bocklet (DE); Steffen Einenkel, Priesendorf (DE); Thomas Walter, Kolitzheim (DE); Gerald Viernekes, Hassfurt (DE); and Günter Fahl, Sulzfeld (DE)
Assigned to ZF FRIEDRICHSHAFEN AG, Friedrichshafen (DE)
Filed by ZF FRIEDRICHSHAFEN AG, Friedrichshafen (DE)
Filed on May 3, 2022, as Appl. No. 17/735,620.
Claims priority of application No. 10 2021 204 589.8 (DE), filed on May 6, 2021.
Prior Publication US 2022/0360146 A1, Nov. 10, 2022
Int. Cl. H02K 11/21 (2016.01); B60K 6/26 (2007.10); H02K 1/32 (2006.01); H02K 7/00 (2006.01); H02K 9/19 (2006.01)
CPC H02K 11/21 (2016.01) [B60K 6/26 (2013.01); H02K 1/32 (2013.01); H02K 7/003 (2013.01); H02K 9/19 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A rotor carrier for an electric machine comprising:
a hub or shaft;
a receiving region that is sleeve-shaped;
at least one carrier region that is flange-like and connected to a hub or shaft;
at least one driving groove extending in axial direction arranged on an outer circumferential surface of the receiving region;
a plurality of radial oil bore holes provided in the receiving region to be distributed over the outer circumferential surface of the receiving region; and
an encoder wheel comprising a nonmagnetic material is provided at an axial end of the rotor carrier, wherein the encoder wheel protrudes over the receiving region in a radial direction to serve as an axial limit for a rotor lamination stack.