Electric machine with heat exchanging unit on surface of housing and cooling duct in rotor

An electric machine comprising:

• a stator unit;
• a rotor unit with a rotor shaft;
• a housing;
• and
• an insert element,
• the stator unit and the rotor unit being arranged coaxially inside the housing,
• the rotor shaft comprising a cavity extending at least partially along a longitudinal axis of the rotor shaft to receive a medium,
• the rotor shaft further comprising a medium inlet opening and a plurality of medium outlet openings arranged on the rotor shaft in a circumferential direction of the rotor shaft,
• the insert element being arranged in the cavity and abutting on the plurality of medium outlet openings, the insert element being configured to at least partially block at least one of the plurality of medium outlet openings depending on a rotation rate of the rotor shaft.

A vehicle comprising an electric machine, the electric machine comprising:

• a stator unit;
• a rotor unit with a rotor shaft;
• a housing;
• and
• an insert element,
• the stator unit and the rotor unit being arranged coaxially inside the housing,
• the rotor shaft comprising a cavity extending at least partially along a longitudinal axis of the rotor shaft to receive a medium,
• the rotor shaft further comprising a medium inlet opening and at least one medium outlet opening,
• the insert element being arranged in the cavity and abutting on the at least one medium outlet opening, and the insert element being attached to the rotor shaft using a spring means, the spring means being configured to rotate the insert element such that the at least one medium outlet opening of the rotor shaft being at least partially blocked by the insert element,
• the insert element being configured to at least partially block the at least one medium outlet opening depending on a rotation rate of the rotor shaft.