Method for producing a stator winding of an electric machine, in particular for producing an alternator

摘要

The invention relates to a method for producing a stator winding (18) of an electric machine (10), in particular of an alternator, the stator winding (18) comprising at least n phase windings (120, 121, 122, 123, 124) and a phase winding (120, 121, 122, 123, 124) having several directly consecutively wound coils (82) having coil sides (88) and coil side connectors (91), the coils (82) being divided into first coils (82.1) and second coils (82.2), by means of a forming tool (100), in which grooves (105, 106; 105′, 106′) suitable for accommodating the coils (82) are provided, a first coil (82.1) being arranged in one groove (105; 105′) and a second coil (82.2) being arranged in another groove (105; 105′), characterized in that n−1 grooves (105, 106; 105′, 106′) are arranged between the first coil (82.1) and the second coil (82.2).

主权项

1. A method for producing a stator winding (18) of an electrical machine (10), wherein the stator winding (18) has at least n phase windings (120, 121, 122, 123, 124) and a phase winding (120, 121, 122, 123, 124) has a plurality of directly successive wound coils (82) including at least a first coil (82.1) and a second coil (82.2) directly adjacent the first coil (82.1) with a coil connector (94.1) provided integrally therebetween, the method comprising:
winding each of the coils (82) with a plurality of turns (85), each turn (85) including a pair of parallel coil sides (88) integrally connected with a corresponding coil side connector (91); shaping each of the first and second coils (82.1, 82.2) after winding of the turns (85) such that all of the coil sides (88) of the first coil (82.1) and all of the coil sides (88) of the second coil (82.2) are arranged in-plane with one another; rotating the first and second coils (82.1, 82.2) in mutually opposite directions, each of the first and second coils (82.1, 82.2) being rotated through 90 angular degrees with respect to the coil connector (94.1) such that a plane containing the coil sides (88) of the first coil (82.1) is parallel to and spaced from a plane containing the coil sides (88) of the second coil (82.2); providing a shaping tool (100), in which slots (105, 106; 105′, 106′) are provided which are suitable for holding the coils (82); and arranging the first coil (82.1) in one slot (105; 105′) of the shaping tool (100), arranging the second coil in another slot (105; 105′) of the shaping tool (100), and arranging n−1 slots (105, 106; 105′, 106′) of the shaping tool (100) between the first coil (82.1) and the second coil (82.2).