Patent ID: 7872392

Claim:
A rotating electrical machine comprising: a rotor; a stator which concentrically surrounds the rotor and has a laminated press plate and a laminated stator core terminated at each of two axial ends by the laminated press plate, the laminated press plate comprising a stack of individual press plate laminates; wherein the press plate laminates at least partially comprise slits configured and arranged to reduce eddy current losses; wherein the press plate laminates comprise ring segments, and wherein the slits run in the radial direction; wherein the press plate laminates include an inner edge, and wherein the slits, starting from the inner edge of the press plate laminates, extend into the interior of the press plate laminates and end therein; slots which reach radially into the laminate up to a predetermined depth, configured and arranged to accommodate a stator winding, positioned in some of the press plate laminates, each slot having a slot base, the slots distributed over the press plate laminate inner circumference, and wherein the slits each extend, starting from a slot base, into the interior of the press plate laminates; wherein a slit extends from each slot into the interior of the press plate laminate.