Abstract: A stator, a flat wire motor, a powertrain. A plurality of stator slots are evenly provided on an inner wall of the stator core in a circumferential direction, the stator winding includes flat wire conductors inserted in the stator slots. The flat wire conductors are connected to form m phase windings, each phase winding includes a plurality of phase units that are evenly disposed at spacings in the circumferential direction of the stator core, any phase unit of each phase winding includes at least two phase bands, each phase band of any phase unit includes two adjacent layers of flat wire conductors, and adjacent phase bands of any phase unit are staggered by one stator slot. The stator winding is a short-pitch winding, which reduces back electromotive force harmonics and improves performance of the motor.

Abstract: This application describes examples of a rotor, a permanent magnet motor and a powertrain. In one example, in a first rotor assembly of a rotor structure, each first rotor lamination is provided with a plurality of first permanent magnet slot groups, and a first boss is disposed at one end that is of each first permanent magnet slot of the first permanent magnet slot group and that is close to an outer edge of the first rotor lamination. In a second rotor assembly of the rotor structure, each second rotor lamination is provided with a plurality of second permanent magnet slot groups, and a second boss is disposed at one end that is of each second permanent magnet slot of the second permanent magnet slot group and that is close to an outer edge of the second rotor lamination.