US 12,316,165 B2
Axial flux machine comprising mechanically fixed stator cores having radially extending sheet metal segments
Holger Witt, Bühl (DE)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 17/782,183
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Nov. 3, 2020, PCT No. PCT/DE2020/100935
§ 371(c)(1), (2) Date Jun. 3, 2022,
PCT Pub. No. WO2021/110197, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. 10 2019 133 038.6 (DE), filed on Dec. 4, 2019; and application No. 10 2020 101 149.0 (DE), filed on Jan. 20, 2020.
Prior Publication US 2023/0006485 A1, Jan. 5, 2023
Int. Cl. H02K 1/18 (2006.01); H02K 21/24 (2006.01)
CPC H02K 1/182 (2013.01) [H02K 21/24 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An axial flux machine comprising:
an annular stator; and
two rotor elements mounted rotatably relative to the stator about an axis of rotation, wherein a first rotor element of the two rotor elements is arranged axially adjacent to a first end face of the stator and a second rotor element of the two rotor elements is arranged axially adjacent to a second end face of the stator, and wherein the stator has a plurality of stator cores distributed in a circumferential direction of a circular line extending about the axis of rotation, wherein at least one stator core has a plurality of radially extending guide segments that are stacked on top of one another in the circumferential direction and are of plate-like design, wherein at least a partial quantity of the guide segments have a first retaining contour on a radial outer side thereof and a second retaining contour on a radial inner side thereof, wherein at least the first retaining contour or the second retaining contour is accommodated in an interlocking manner on at least one supporting region fixed to a housing, wherein at least the first retaining contour or the second retaining contour is formed by a radial extension which is shaped like a hook and forms an undercut, wherein the at least one supporting region has an axially projecting retaining tab which projects into the undercut and the radial extension abuts an outer surface of the retaining tab for interlocking therebetween, wherein the stator comprises a plurality of stator windings, wherein each of the plurality of stator cores is associated with a respective stator winding of the plurality of stator windings, wherein at least one stator winding is wound around the first retaining contour and the second retaining contour, wherein the axially projecting retaining tab is disposed radially within the at least one stator winding.