US 12,278,522 B2
Welding of a stack of laminations for a rotor
Christoph Wieczorek, Erlangen (DE); Carsten Siepker, Erlangen (DE); Florian Volkmuth, Erlangen (DE); David Förster, Erlangen (DE); Christoph Englert, Erlangen (DE); Nikolas Seubert, Erlangen (DE); and Sebastian Beetz, Erlangen (DE)
Assigned to Valeo eAutomotive Germany GmbH, Erlangen (DE)
Filed by Valeo eAutomotive Germany GmbH, Erlangen (DE)
Filed on Dec. 21, 2022, as Appl. No. 18/069,684.
Claims priority of application No. 21217467 (EP), filed on Dec. 23, 2021.
Prior Publication US 2023/0208226 A1, Jun. 29, 2023
Int. Cl. H02K 1/28 (2006.01); H02K 1/24 (2006.01); H02K 15/02 (2025.01); H02K 15/022 (2025.01)
CPC H02K 1/28 (2013.01) [H02K 1/24 (2013.01); H02K 15/022 (2013.01); H02K 2215/00 (2021.08)] 13 Claims
OG exemplary drawing
 
1. A rotor for a rotary electric machine, the rotor comprising:
a rotor shaft configured to rotate around an axis of rotation;
a rotor body formed of a stack of laminations and having a plurality of teeth projecting radially, the rotor body being configured to be mounted coaxially on the rotor shaft; and
a field coil wound around each tooth of the plurality of teeth,
wherein at least one tooth of the plurality of teeth comprises at least one weld seam on a lateral face of the corresponding tooth, the lateral face extending radially and axially along the axis of rotation,
wherein the at least one weld seam is substantially straight, and
wherein the at least one weld seam extends substantially along a diagonal of the corresponding lateral face of the corresponding tooth of the plurality of teeth.