Motor vehicle having an electric machine having a rotor internal to a stator, the stator having cooling channels

An electric machine, designed as an internal rotor, the electric machine comprising:

• a rotor;
• and
• a stator, the stator having a plurality of teeth each extended along a radial direction and along a longitudinal direction of the electric machine, each of the teeth configured to carry a winding wound around the teeth,
• wherein stator slots extend between two adjacent teeth and along the longitudinal direction through which the windings extend, and
• wherein the windings are configured to be coolable by a cooling fluid guided in a plurality of cooling channels formed in the stator and extending along the stator slots,
• wherein the plurality of cooling channels includes a respective tooth-based cooling channel arranged in each tooth laterally adjacent to and between each pair of adjacent slot bases of adjacent stator slots such that at least one section of at least one of the plurality of windings at a radially outer end of the stator slot is positioned between a respective pair of the radially outer tooth-based cooling channels and can be cooled on both sides thereof,
• wherein a radially outer end of each of the tooth-based cooling channels is located radially outward of the adjacent slot bases of the adjacent stator slots, and wherein a radially inward end of each of the tooth-based cooling channels is located radially inward of the adjacent slot bases of the stator slots, and
• wherein the plurality of cooling channels further includes at least one respective radially outer slot-based cooling channel and at least one respective radially inner slot-based cooling channel which are each aligned with a respective one of the stator slots and which are distinct from and offset from the tooth-based cooling channels, the at least one radially outer slot-based cooling channel running offset from the stator slot and adjacent to a radially outer section of the respective winding, and the at least one radially inner slot-based cooling channel running directly adjacent to a radially inner section of the respective winding.