Abstract: A rotor shaft assembly for an electric machine, comprising a hollow rotor shaft which is designed to accommodate a rotor and delimits a hollow space that is designed such that a cooling medium can flow through in order to cool the rotor shaft, and comprising a lance projecting into the hollow space, which has an out-flow region, via which the cooling medium guided in the lance can flow out of the lance and into the hollow space, and in which the lance has a swirling device, with which turbulence can be generated in the cooling medium when same is flowing out of the lance.

Abstract: An electric motor assembly (10), in particular for driving a vehicle, comprises an electric motor (12), a magnetic sensor (46) and a shield (14), the electric motor (12) being equipped with a stator (16), a rotor (18) and at least one magnet (28) which is connected to the rotor (18) for conjoint rotation therewith and generates a measuring magnetic field (MM). The magnetic sensor (46) is located in the measuring magnetic field (MM) and is connected to the shield (14), and the shield (14) has high magnetic permeability and is closed in the area of the magnetic sensor (46).

Abstract: An electric motor assembly (10), in particular for driving a vehicle, comprises an electric motor (12), a magnetic sensor (46) and a shield (14), the electric motor (12) being equipped with a stator (16), a rotor (18) and at least one magnet (28) which is connected to the rotor (18) for conjoint rotation therewith and generates a measuring magnetic field (MM). The magnetic sensor (46) is located in the measuring magnetic field (MM) and is connected to the shield (14), and the shield (14) has high magnetic permeability and is closed in the area of the magnetic sensor (46).