Patent ID: 8125113
Filing Date: 2012-02-28
Classification: H02K,Y10T

Abstract:
1. A wound core assembly for an electrical machine, the wound core assembly comprising a stack of laminations secured together to define a core having a plurality of poles, the poles each having a first end at which they are connected to the remainder of the core and having an opposed second end, the wound core assembly further including a plurality of slot wedges made from an insulating material, wherein each one of the plurality of slot wedges includes a first portion disposed with an interference fit between adjacent poles adjacent their second ends to define a space for a winding between the slot wedge and the core and includes at least one second portion protruding from the first portion and applying pressure to an end face of the core in the region of one of the poles that is adjacent thereto, wherein the pressure provided by the plurality of slot wedges substantially prevents splaying of a lamination at each end face and holds the lamination in its correct position against the core.