Abstract: A rotor for an electric motor includes a rotor core having a radius and a peripheral outer surface. The rotor further includes at least one air deflector element associated with the peripheral outer surface. The at least one air deflector element has at least one slope arranged at a predetermined angle to the radius. The at least one air deflector element is designed to deflect an air flow which occurs during a rotation of the rotor and flows along the peripheral outer surface counter to a direction of rotation of the rotor, at least partially in a flow direction oriented at least approximately perpendicularly to the peripheral outer surface.

Abstract: A rotor for a drive motor having a rotor core on the outer circumference of which a surface magnet is arranged, wherein a reinforcing sleeve is arranged on an outer circumference of the surface magnet for fixing the surface magnet to the rotor core.

Abstract: A rotor for an electric machine, in particular for a brushless DC motor, includes a hollow cylindrical main body that is rotationally fixed to a machine shaft. The main body includes a plurality of radial protrusions arranged over its casing surface in the circumferential direction and in the axial direction and offset relative to one another by a defined offset angle. Each radial protrusion is limited over an angular range, which is smaller than the offset angle. The hollow cylindrical main body is permanently connected, in particular adhered, to a hollow cylindrical body surrounding same in the circumferential direction by way of a joining process. A method for producing a rotor for an electric machine is also disclosed.

Abstract: A rotor for an electric motor includes a rotor core having a radius and a peripheral outer surface. The rotor further includes at least one air deflector element associated with the peripheral outer surface. The at least one air deflector element has at least one slope arranged at a predetermined angle to the radius. The at least one air deflector element is designed to deflect an air flow which occurs during a rotation of the rotor and flows along the peripheral outer surface counter to a direction of rotation of the rotor, at least partially in a flow direction oriented at least approximately perpendicularly to the peripheral outer surface.

Abstract: A rotor for an electric machine, in particular for a brushless DC motor, includes a hollow cylindrical main body that is rotationally fixed to a machine shaft. The main body includes a plurality of radial protrusions arranged over its casing surface in the circumferential direction and in the axial direction and offset relative to one another by a defined offset angle. Each radial protrusion is limited over an angular range, which is smaller than the offset angle. The hollow cylindrical main body is permanently connected, in particular adhered, to a hollow cylindrical body surrounding same in the circumferential direction by way of a joining process. A method for producing a rotor for an electric machine is also disclosed.