Stator for an electric machine and method for producing a stator

A method for producing a stator for an electric machine, comprising:

• providing a stator body having a plurality of stator teeth arranged in a distributed manner over a circumference and stator slots formed between the stator teeth and extending in an axial direction through the stator body, wherein in the stator slots, electric conductors of a stator winding are arranged which emerge from the stator body at an end face at least forming a winding head, wherein during operation of the electric machine, a cooling fluid is applied to the winding head, and wherein at least one of the electric conductors of the stator winding projects from the winding head;
• providing housing enclosing the winding head, the housing having an annular-disc-like base and cylinder rings extending axially therefrom;
• providing a bolt connection comprising a threaded bolt and at least one of a nut coupled to the threaded bolt, a bolt head connected to the threaded bolt, or an internal thread arranged on a bus bar coupled to the threaded bolt;
• establishing an electric contact between the at least one of the electric conductors of the stator winding projecting from the winding head and the bolt head or the bus bar;
• axially sliding the housing over the winding head so that the housing seals the winding head with respect to surroundings and to the stator body;
• and
• establishing an electric contact between the electric conductor of the stator winding projecting from the winding head and an electric connecting conductor by the bolt connection so that the threaded bolt of the bolt connection engages through the base of the housing and the nut or the screw head outside the housing locks the screw connection with respect to the housing in such a way that the electric connecting conductor is fixed relative to the screw connection and a current path is established between the electric connecting conductor and the at least one of the electric conductors of the stator winding projecting from the winding head.