Rotor, permanent magnet synchronous electric motor and household appliance

摘要

The invention relates to a rotor for a permanent magnet excited electric motor with a plurality, in particular formed as a ferrite, rotor permanent magnets (1) which are arranged about a rotor axis of rotation (A), wherein the rotor permanent magnets (1) radially from the rotor axis of rotation (A). seen from distal magnetic outer surfaces (2) and a rotor sleeve (3) enclosing the magnetic outer surfaces (2) at least partially shell-shaped. The rotor sleeve (3) is formed of a sleeve material having a relative permeability greater than or equal to 1.05 and less than or equal to 15. Furthermore, the invention relates to a permanent magnet synchronous electric motor, a permanent magnet-excited washing machine synchronous electric motor and a household appliance, each having in their synchronous electric motor, the rotor according to the invention.