Patent ID: 7965014
Filing Date: 2011-06-21
Classification: H02K

Abstract:
1. A stator having a ring shape for an electrical rotating machine, comprising: a plurality of divided cores disposed in a circumferential direction of the stator; a stator winding toroidal wound on the stator; a holding member that is connected to an outer circumferential faces of the divided cores and holds the divided cores in the ring shape, wherein each of the divided cores comprises: a bobbin part on which the stator winding is wound; a yoke extending from the bobbin part in the circumferential direction; a connection part extending from the yoke outwardly in a radial direction of the stator with a connection face that is connected to the holding member; and a tooth extending from the yoke inwardly in the radial direction, wherein the connection part comprises a magnetic gap to increase a magnetic resistance in a path of magnetic flux, generated by the stator winding, leaked to the holding member through the connection face, wherein the magnetic gap comprises a notch or a weld with a tapered sectional shape at an edge between an end face in the circumferential direction of the connection part and the connection face.