Patent ID: 8344580
Filing Date: 2013-01-01
Classification: H02K,Y10T

Abstract:
1. A stator for a polyphase electric machine, comprising: a core body which, in a radial direction with respect to an axis of rotation of the electric machine, has slots with a slot width on one side of the core body parallel to a longitudinal axis of the core body and is provided on the opposite side with a stator yoke, two slots being respectively separated from one another by a tooth having a tooth width and extending from a slot base to a tooth head, the slots being provided with a plurality of coils connected electrically in series to receive at least one coil winding, the coil winding being manufactured from at least one continuous wire without interruption; wherein at least one of (a) a ratio of the tooth width at the tooth head to the yoke height is between 0.3 and 0.8, (b) a ratio of the tooth width at the tooth head to the slot width at the tooth head is between 0.3 and 3, and (c) a ratio of a copper mass of the wire in the slot to a total copper mass of the wire is between 0.43 and 0.55.