Patent ID: 11863023
Assignee: DENSO CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A rotating electrical machine comprising:
a magnetic field-producing unit equipped with a magnet unit including a plurality of magnetic poles whose magnetic polarities are arranged alternately in a circumferential direction; and
an armature which includes a multi-phase armature winding,
wherein one of the magnetic field-producing unit and the armature is engineered as a rotor whose rotating shaft is retained by a bearing to be rotatable,
the armature winding has conductor portions which are arranged at a given interval away from each other in the circumferential direction and face the magnet unit,
the armature has conductor-to-conductor members arranged between the conductor portions in the circumferential direction, the conductor-to-conductor members being made from a magnetic material which meets a relation of Wt×Bs≤Wm×Br where Wt is a width of the conductor-to-conductor members in the circumferential direction within one magnetic pole of the plurality of magnetic poles, Bs is a saturation magnetic flux density of the conductor-to-conductor members, Wm is a width equivalent to one magnetic pole of the plurality of magnetic poles in the circumferential direction, and Br is a remanent flux density in the magnet unit, and
the magnet unit is magnetically oriented to have an easy axis of magnetization, in a region located closer to a d-axis that is a center of a magnetic pole of the plurality of magnetic poles, aligned to be more parallel to the d-axis than that in a region located closer to a q-axis that is a boundary between magnetic poles.