US 11,811,267 B2
Stator plate packet with weld seams running obliquely to rotational axis
Andreas Böhm, Erlangen (DE); and Michael Müller, Bad Neustadt a.d.Saale (DE)
Assigned to Valeo Siemens eAutomotive Germany GmbH, Erlangen (DE)
Filed by Valeo Siemens eAutomotive Germany GmbH, Erlangen (DE)
Filed on Sep. 2, 2021, as Appl. No. 17/465,190.
Claims priority of application No. 10 2020 211 144.8 (DE), filed on Sep. 3, 2020.
Prior Publication US 2022/0069642 A1, Mar. 3, 2022
Int. Cl. H02K 1/16 (2006.01); H02K 1/22 (2006.01); H02K 7/14 (2006.01)
CPC H02K 1/16 (2013.01) [H02K 1/22 (2013.01); H02K 7/14 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A stator plate packet for a stator of an electrical machine, comprising:
several stator plates stacked one against the other and with stator grooves open towards an inside for receiving a stator winding,
wherein the stator plates are welded together by a plurality of external weld seams or weld seam portions which are evenly distributed over a periphery of the stator plate packet, and
wherein each weld seam or weld seam portion runs from a first end face of the stator plate packet to a second end face of the stator plate packet and wherein, with respect to a rotational axis of the electrical machine, each weld seam or weld seam portion extends over an angle which lies in a range of α≥360°/n−10%, wherein n corresponds to a number of external weld seams or weld seam portions comprised by the plurality of external weld seams or weld seam portions, and
wherein the weld seams or weld seam portions run obliquely to the axis of rotation to form a zigzag shape.