US 12,021,415 B2
Rotor for an electric machine and electric machine having a rotor
Jochen Eggler, Waldburg (DE); and Ulrich Kehr, Tettnang (DE)
Assigned to ZF Friedrichshafen AG, Friedrichshafen (DE)
Filed by ZF Friedrichshafen AG, Friedrichshafen (DE)
Filed on Jan. 18, 2022, as Appl. No. 17/577,477.
Claims priority of application No. 10 2021 201 602.2 (DE), filed on Feb. 19, 2021.
Prior Publication US 2022/0271582 A1, Aug. 25, 2022
Int. Cl. H02K 1/276 (2022.01); H02P 6/21 (2016.01); H02P 29/66 (2016.01)
CPC H02K 1/276 (2013.01) [H02P 6/21 (2016.02); H02P 29/66 (2016.02)] 17 Claims
OG exemplary drawing
 
1. A rotor (1) for an electric machine (2), comprising:
a rotor body including multiple poles;
at least one sensor element (3) for detecting at least one condition variable of the rotor (1);
a signal processing unit (4) connected to the at least one sensor element (3), the signal processing unit (4) being configured to generate measured data from the condition variable of the rotor (1) and to transmit the measured data to a control device (5); and
at least one induction coil (7), each of the at least one induction coil (7) includes at least one electrical conductor (8), the at least one induction coil (7) being arranged at the rotor (1) on an outer circumferential surface (12) of the rotor (1) and being configured to supply electrical energy to power one or both of the signal processing unit (4) and the at least one sensor element (3) from a magnetic field that is temporally changing during operation of the electric machine (2).