Patent ID: 8093778

Claim:
An electrical machine comprising: a rotor; a stator, wherein one of the rotor and the stator include a core with a plurality of winding slots; a winding having a plurality of axially extending winding bars, wherein each of the plurality of winding slots receives two winding bars disposed one on top of the other, and wherein the plurality of winding bars emerge from the plurality of winding slots at an end side of the machine, and wherein each of a majority of the plurality of winding bars is electrically connected to another winding bar in an end winding so as to form a pair of winding bars according to a predetermined scheme, the pair including an upper winding bar of a first winding slot and a lower winding bar of a second winding slot bent towards one another such that an end of the upper winding bar is disposed on top of an end of the lower winding bar so as to cross the end of the lower winding bar in a radial direction and such that the end of the upper winding bar is at an angle to the end of the lower winding bar; and a plurality of integral connecting elements electrically connecting the respective ends of each upper winding bar and lower winding bar in each pair, wherein the end of the upper winding bar and the end of the lower winding bar each include a straight lug, and wherein the connecting element extends in the radial direction and includes two bearing faces, wherein each one of the two bearing faces bears against each one of the straight lugs in the pair.