US 12,334,794 B2
Externally excited electric machine
Roman Straßer, Gaimersheim (DE)
Assigned to AUDI AG, Ingolstadt (DE)
Filed by AUDI AG, Ingolstadt (DE)
Filed on Feb. 2, 2023, as Appl. No. 18/163,803.
Claims priority of application No. 102022102602.7 (DE), filed on Feb. 3, 2022.
Prior Publication US 2023/0246510 A1, Aug. 3, 2023
Int. Cl. H02K 5/14 (2006.01); H01R 39/38 (2006.01); H01R 39/59 (2006.01); H01R 39/60 (2006.01)
CPC H02K 5/148 (2013.01) [H01R 39/381 (2013.01); H01R 39/59 (2013.01); H01R 39/60 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An externally excited electric machine, comprising:
a rotor;
a contact device having at least one sliding contact element positionable against a contact segment of the rotor for transmitting an exciter current,
wherein the sliding contact element is integrated in an electromagnetic actuator, by which the sliding contact element can be controlled to move between a position lying against the contact segment and a position spaced apart from the contact segment.