US 11,670,992 B2
Electrical machine having an integrated temperature sensor and rotor condition capture sensor
Andreas Ruppert, Buhl (DE); Michael Marsetz, Rastatt (DE); and Thomas Fritz, Rheinstetten (DE)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 17/293,142
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Nov. 4, 2019, PCT No. PCT/DE2019/100942
§ 371(c)(1), (2) Date May 12, 2021,
PCT Pub. No. WO2020/098871, PCT Pub. Date May 22, 2020.
Claims priority of application No. 102018128178.1 (DE), filed on Nov. 12, 2018.
Prior Publication US 2022/0006364 A1, Jan. 6, 2022
Int. Cl. H02K 11/25 (2016.01); H02K 11/21 (2016.01); H02K 5/22 (2006.01)
CPC H02K 11/25 (2016.01) [H02K 5/22 (2013.01); H02K 11/21 (2016.01)] 19 Claims
OG exemplary drawing
 
1. An electric machine for a drive of a motor vehicle, the electric machine comprising:
a stator;
a rotor which is rotatable relative to the stator;
a temperature sensor arranged and configured to capture a temperature of the stator; and
a rotor condition capture sensor arranged and configured to capture at least one of a rotational speed or rotational position of the rotor accommodated in a stator-fixed manner;
wherein the temperature sensor and the rotor condition capture sensor are configured as subsystems of a common sensor system, a first one of the subsystems having the temperature sensor includes an elastic, thermally conductive contact element connected to the temperature sensor, and the contact element is permanently fitted to a contact region of the stator; and
wherein the first subsystem is connected indirectly or directly to a second one of the subsystems having the rotor condition capture sensor via a snap-in connection, the snap-in connection including at least one snap-in hook of the first subsystem coupled to at least one recess of the second subsystem.