US 12,255,495 B2
Rotor lamination, method for producing a rotor lamination and electric machine
Carsten Schuh, Baldham (DE)
Assigned to SIEMENS AKTIENGESELLSCHAFT, Munich (DE)
Appl. No. 17/769,659
Filed by Siemens Aktiengesellschaft, Munich (DE)
PCT Filed Sep. 24, 2020, PCT No. PCT/EP2020/076711
§ 371(c)(1), (2) Date Apr. 15, 2022,
PCT Pub. No. WO2021/073847, PCT Pub. Date Apr. 22, 2021.
Claims priority of application No. 19203668 (EP), filed on Oct. 16, 2019.
Prior Publication US 2024/0154474 A1, May 9, 2024
Int. Cl. H02K 1/22 (2006.01); H02K 1/02 (2006.01); H02K 15/02 (2006.01); H02K 15/12 (2006.01)
CPC H02K 1/22 (2013.01) [H02K 1/02 (2013.01); H02K 15/02 (2013.01); H02K 15/12 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A rotor lamination comprising:
a disk with a set of radial grooves on both faces, the disk comprising a first material; and
a second material disposed in each of the set of radial grooves;
wherein the first material is at least partially soft magnetic;
the second material has a higher mechanical tensile strength than the first material; and
the first material and the second material are connected with a material bond.