Patent ID: 8079133
Filing Date: 2011-12-20
Classification: H02K,Y10T

Abstract:
1. A method for the production of the rotor winding of an electric machine, the electric machine having at least four exciter poles in the stator and having a commutator rotor, which has a number of slots and pole teeth on its circumference, which number differs from the number of exciter poles, and having a number of single-tooth coils and an equal number of commutator laminations, which number is at least twice as large as the number of pole teeth, and the single-tooth coils are wound, in a substantially uniformly distributed manner, and in particular continuously wound, onto the pole teeth with a winding wire by an automatic winder, the method comprising the steps of securing the winding wire at a beginning lamination to a first pole tooth, then winding a first coil with a freely selectable angular offset to its beginning lamination and with a predetermined number of windings; then securing the winding wire, at a fixedly predetermined lamination increment width to a further commutator lamination as an end lamination; then successively, from each commutator lamination, winding a respective coil onto the pole tooth that has the least electrical angle error, referred to a pole pitch, to the selected angular offset and then connecting the winding wire, at the predetermined lamination increment width, to a further lamination, until all the single-tooth coils have been wound onto the pole teeth, wherein the lamination increment width of the single-tooth coils is predetermined, as a function of the number of laminations and the number of pole pairs of the stator, such that the equation |Y−N/p|≦0.5 is satisfied, wherein Y is the lamination increment width, N is the number of laminations, and the and p is the number of pole pairs.