US 12,224,625 B2
Rotor for an axial flux machine, method for producing a rotor for an axial flux machine and axial flux machine
Holger Witt, Bühl (DE); and Matthias Gramann, Renchen (DE)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 17/911,447
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Feb. 25, 2021, PCT No. PCT/DE2021/100188
§ 371(c)(1), (2) Date Sep. 14, 2022,
PCT Pub. No. WO2021/185403, PCT Pub. Date Sep. 23, 2021.
Claims priority of application No. 102020107162.0 (DE), filed on Mar. 16, 2020.
Prior Publication US 2023/0094571 A1, Mar. 30, 2023
Int. Cl. H02K 21/24 (2006.01); H02K 1/2798 (2022.01); H02K 15/03 (2006.01)
CPC H02K 1/2798 (2022.01) [H02K 15/03 (2013.01); H02K 21/24 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A rotor for an electrical axial flux machine that is operable as at least one of a motor or generator, said rotor comprising:
a support;
a plurality of magnet elements arranged against, on, or in the support and running substantially radially from an interior of the support outwards, the magnet elements being magnetized in a circumferential direction and being arranged individually or in groups in series around a circumference of the support with alternating opposing magnetization directions;
a plurality of flux conduction elements which conduct magnetic flux and are arranged against, on, or in the support and around the circumference, between the magnet elements; and
a flux distributing element which distributes the magnetic flux with soft magnetic composite material is arranged between at least one of the magnet elements and one said flux conduction element that is arranged adjacently thereto in the circumferential direction;
wherein the flux distributing element has a triangular cross-section as seen in a sectional plane perpendicular to a rotor rotation axis, the triangular cross-section rests with a base side thereof against an adjacent one of the magnet element, and is in contact with adjacently arranged ones of the flux conduction elements with two remaining leg sides of the triangular cross-section.