Stator for an electric machine and electric machine

An electrical machine, comprising:

• a stator comprising:
• a housing surrounding a housing interior;
• a laminated core comprising a plurality of laminations stacked along an axial direction, the laminated core positioned within the housing interior;
• a gap between the laminated core and the housing, the gap forming a fluid path for a cooling medium to dissipate waste heat from the stator;
• and
• a rib structure arranged on an outer periphery of the laminated core, the outer periphery defining an inner radial boundary of the fluid path,
• wherein the rib structure includes a plurality of ribs that projects radially outward into the fluid path to deflect the cooling medium as the cooling medium flows;
• and
• a rotor arranged in the housing interior, which is magnetically coupled to the stator and is configured to rotate with respect to the stator about an axis of rotation extending along the axial direction.