Patent ID: 8667666
Filing Date: 2014-03-11
Classification: H02K,Y10T

Abstract:
1. A method for producing a wave wound electrical element of an electrical machine, the produced electrical element having a distributed wave winding of intertwined wire groups which wire groups have interlaced wires, the wires of which wave winding are i) shaped continuously in wavelike fashion into ii) associated in pairs whose straight segments occupy the same slots but whose head portions protrude from opposite ends of the slots receiving two successive straight segments of the associated wires, said method comprising the steps of: forming two interlaced wire groups separately, said forming step for each wire group including the steps of winding the two individually interlaced wire groups onto one another in an axial relative position in which the straight segments, created from associated wires on opposite sides of the striplike former, are made to coincide in a relative position in which the straight segments of the wires associated in pairs, in successive slots to be occupied thereby, alternatingly assume a radially outer position and a radially inner position so that the two interlaced wire groups form an intertwined wave winding; and introducing the intertwined wave winding into the slots of the electrical element in a direction transversely to a longitudinal extent of the slots to form the wave wound electrical element.