US 12,255,517 B2
Electric motor having electromagnetically actuatable brake
Torsten Epskamp, Bretten (DE); Gerolf Fichtner-Pflaum, Kraichtal-Unteröwisheim (DE); and Alexander Stahl, Karlsruhe (DE)
Assigned to SEW-EURODRIVE GMBH & CO. KG, Bruchsal (DE)
Appl. No. 18/025,670
Filed by SEW-EURODRIVE GMBH & CO. KG, Bruchsal (DE)
PCT Filed Sep. 2, 2021, PCT No. PCT/EP2021/074308
§ 371(c)(1), (2) Date Mar. 10, 2023,
PCT Pub. No. WO2022/053398, PCT Pub. Date Mar. 17, 2022.
Claims priority of application No. 102020005540.0 (DE), filed on Sep. 10, 2020.
Prior Publication US 2023/0344305 A1, Oct. 26, 2023
Int. Cl. H02K 7/102 (2006.01); H02K 7/12 (2006.01)
CPC H02K 7/1023 (2013.01) 20 Claims
OG exemplary drawing
 
1. An electric motor, comprising:
an electromagnetically actuatable brake having a coil received in a magnet body;
a brake lining carrier connected, rotationally-fixed and axially displaceable, to a rotor shaft of the electric motor;
an armature disk connected, rotationally-fixed and axially displaceable, to the magnet body and arranged axially between the brake lining carrier and the magnet body;
springs supported on the magnet body and pressing on the armature disk;
a second electromagnet arranged on the magnet body the magnet body;
a lever is pivotably mounted relative to and/or on the magnet body and connected to the armature disk;
wherein, in a first rotational position of the lever, the armature disk is pressed towards the brake lining carrier, and, in a second rotational position of the lever, the armature disk is kept pulled toward the magnet body.