Stator with connection ring and connector terminal with interlocking structures

A stator for an electric machine comprising:

• a winding;
• and
• a connection ring placed axially onto the winding;
• the connection ring having a ring-shaped or ring-segment-shaped plastic body having at least three conductors which are each associated with a respective phase and are interconnected, and an end of at least one of the conductors protruding axially above the winding;
• wherein the connection ring has a connector terminal having at least three electrical connector portions that each contact a conductor of the connection ring and each electrically conductively connect to a respective connection of the connector terminal, the connection ring and the connector terminal have interlocking structures which define a defined position of the connection ring and connector terminal with respect to one another;
• wherein the interlocking structures comprise a trapezoidal section extending in a radial direction and having first and second opposite circumferential end faces and a pocket having a corresponding shape for receiving the trapezoidal section;
• and
• wherein the opposite circumferential end faces converge towards each other in a radially inward direction;
• wherein the connection ring includes spacer elements pointing radially outwards on which the connector terminal rests when joined together with the connection ring, wherein the spacer elements are configured such that the connector terminal is joined to the connection ring under a radial prestress.