End plate for a rotor assembly of an electrical machine, rotor assembly for an electrical machine, and vehicle

An end plate for a rotor assembly of an electrical machine, comprising:

• a central through-opening for feeding through a shaft, a collar formed on an end face of the end plate on a radial outside in a circumferential direction and a plurality of elevations on the end face, the elevations and the collar axially delimiting a cooling channel, the cooling channel forming a plurality of cooling channel sections, which are delimited on both sides by a respective elevation, two elevations delimiting a cooling channel section being spaced apart from one another by a first arc length at a first radial position between the through-opening and the collar and being spaced apart from one another by a second arc length that is greater than the first arc length at a second radial position delimited by the collar,
• wherein each cooling channel section comprises at least one fluid guide element between the first radial position and the second radial position.