Patent ID: 11929653
Assignee: KABUSHIKI KAISHA TOSHIBA
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A stator of a rotary electric machine, comprising:
a stator core including a ring-shaped yoke with a center axis line, and a plurality of teeth each extending from an inner periphery of the yoke, the stator core forming a slot between adjacent teeth; and
rectangular wires each comprising a pair of linear parts arranged with different slots and a bridge part connecting the pair of linear parts between the different slots, the rectangular wires having a rectangular cross-sectional shape, wherein,
when the bridge parts are viewed from a cross-sectional surface including the teeth and the bridge part in a cross-sectional surface defined by an axial direction passing the center axis line and a radial direction of the stator core,
in an area where side surfaces in the long side are inclined at a predetermined inclination angle from the axial direction to the outside of the radial direction between the center axis line to the outermost of the radial direction, and pairs of the bridge parts adjacent in the proximity of a direction parallel to the axial direction or of a direction crossing the axial direction exist greatest in the number with respect to the radial direction,
of the pairs of the bridge parts adjacent to each other in the axial direction and arranged in the same order as being viewed from the inner side of the radial direction, the bridge parts positioned relatively distant from the stator core are arranged outside the radial direction as compared to the bridge parts positioned relatively close to the stator core, and include the parts having greater inclination angle from the axial direction to the outside of the radial direction, and
of the bridge parts arranged on an inner most side in the radial direction, the bridge parts positioned relatively outside in the radial direction include the parts having greater inclination angle as compared to the bridge parts positioned relatively outside in the radial direction.