Rotor arrangement and electric machine

A rotor arrangement comprising:

• a rotor body forming a plurality of slots in the axial direction for receiving a winding;
• a plurality of rotor poles, each rotor poled formed in the radial direction between two of the slots;
• a plurality of windings extending in the slots and enclosing the rotor poles;
• a plurality of slot closure elements configured to close the slots in the radial direction;
• at least one separating body arranged in one of the slots in the circumferential direction between two of the windings;
• the separating body comprising at least two cooling channels extending in the axial direction and configured to allow a cooling medium to flow through the separating body, wherein the cooling channels are spaced apart from one another in at least one of the radial or circumferential direction, the cooling channels having a same geometrical cross-sectional contour;
• and
• at least one of the cooling channels including a plurality of cooling fins projecting into the at least one of the cooling channels.

An electric machine comprising:

• a rotor arrangement comprising:
• a rotor body forming a plurality of slots in the axial direction for receiving a winding;
• a plurality of rotor poles, each rotor poled formed in the radial direction between two of the slots;
• a plurality of windings extending in the slots and enclosing the rotor poles;
• a plurality of slot closure elements configured to close the slots in the radial direction;
• at least one separating body arranged in one of the slots in the circumferential direction between two of the windings;
• the separating body comprising at least two cooling channels extending in the axial direction and configured to allow a cooling medium to flow through the separating body, wherein the cooling channels are spaced apart from one another in at least one of the radial or circumferential direction, the cooling channels having a same geometrical cross-sectional contour;
• and
• at least one of the cooling channels including a plurality of cooling fins projecting into the at least one of the cooling channels.