Electric machine and motor vehicle with wall element and tooth head ring

An electric machine, comprising:

• a housing;
• a rotor comprising a rotor shaft and a rotor laminated core;
• a stator comprising a stator laminated core, wherein the stator laminated core comprises grooves in which stator windings are received, through which a coolant can flow, and wherein a respective tooth of the stator laminated core is arranged between two respective grooves that are arranged adjacent to one another in a circumferential direction;
• an annular gap formed between the rotor laminated core and the stator laminated core;
• a tooth head ring arranged in the annular gap, a respective recess of the tooth head ring being arranged between two tooth heads of the tooth head ring that are arranged adjacent to one another in a circumferential direction of the tooth head ring;
• and
• a wall element arranged in the annular gap between the tooth head ring and the stator laminated core, wherein the wall element seals the stator against the rotor such that, proceeding from the stator via the annular gap and the tooth head ring, no coolant moves towards the rotor.