US 11,791,699 B2
Rotor arrangement
Rayk Gersten, Friedrichshafen (DE); and Stefan Spühler, Friedrichshafen (DE)
Assigned to ZF Friedrichshafen AG, Friedrichshafen (DE)
Filed by ZF Friedrichshafen AG, Friedrichshafen (DE)
Filed on Dec. 16, 2021, as Appl. No. 17/552,945.
Claims priority of application No. 10 2020 216 242.5 (DE), filed on Dec. 18, 2020.
Prior Publication US 2022/0200420 A1, Jun. 23, 2022
Int. Cl. H02K 15/03 (2006.01); H02K 1/28 (2006.01); H02K 1/276 (2022.01)
CPC H02K 15/03 (2013.01) [H02K 1/2766 (2013.01); H02K 1/28 (2013.01); Y10T 29/5313 (2015.01)] 16 Claims
OG exemplary drawing
 
1. A rotor arrangement for an electric machine of a vehicle, wherein the rotor arrangement comprises a rotor lamination stack, and
the rotor arrangement further comprises a rotor support that extends in an axial direction along a rotational axis, the rotor support has a radially outer surface with a rotor support diameter,
the rotor support carries the rotor lamination stack, the rotor lamination stack is arranged on the radially outer surface of the rotor support, a retaining element is mounted on the radially outer surface of the rotor support at an axial end of the rotor lamination stack,
the retaining element is in the form of a one-piece, closed, rotationally symmetrical retaining ring and has an axial ring width and a radially inner surface having at least a first ring diameter, and
the first ring diameter is smaller than or equal to the rotor support diameter such that the radially inner surface of the retaining ring directly mates with the radially outer surface of the rotor support and so that the rotor lamination stack (4) is secured axially in a rotationally fixed manner.