US 12,113,411 B2
Claw pole rotor for an electrical machine
Gurakuq Dajaku, Neubiberg (DE)
Assigned to FEAAM GmbH, Neubiberg (DE)
Filed by FEAAM GmbH, Neubiberg (DE)
Filed on Feb. 22, 2022, as Appl. No. 17/677,966.
Claims priority of application No. 10 2021 104 270.4 (DE), filed on Feb. 23, 2021.
Prior Publication US 2022/0271638 A1, Aug. 25, 2022
Int. Cl. H02K 21/04 (2006.01)
CPC H02K 21/044 (2013.01) 15 Claims
OG exemplary drawing
 
1. A claw pole rotor for an electrical machine, the claw pole rotor comprising:
a first claw pole component having a first yoke-shaft component to which at least two first claw pole fingers are connected;
a second claw pole component having a second yoke-shaft component to which at least two second claw pole fingers are connected, wherein:
the first claw pole fingers extend from a first side of the claw pole rotor towards a second side of the claw pole rotor; and
the second claw pole fingers extend from the second side towards the first side; and
a magnet arranged between the first yoke-shaft component of the first claw pole component and the second yoke-shaft component of the second claw pole component,
wherein:
at least one magnet layer is arranged between the first yoke-shaft component and the second yoke-shaft component, wherein the at least one magnet layer, as seen in a cross-section through the claw pole rotor, is arranged at a radial position which differs from that of the magnet; and
a magnetization direction of the magnet as seen in a cross-section through the claw pole rotor along a radial direction extends in an opposite direction as compared to a magnetization direction of at least one of the at least one magnet layer.