Patent ID: 11929652
Assignee: DENSO CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. An apparatus for manufacturing a rotating electric machine,
the rotating electric machine comprising a magnet section having a plurality of magnetic poles whose polarities alternate in a circumferential direction,
the apparatus comprising a magnetizing yoke to which the magnet section to be magnetized is installed,
the magnetizing yoke including a core and a coil, the core being cylindrical-shaped and having slots at predetermined intervals in the circumferential direction, the coil being received in the slots,
wherein
when installed to the magnetizing yoke, the magnet section faces, at locations closer to a d-axis, magnetization surfaces of the core and faces at locations closer to a q-axis, the slots of the core, the d-axis representing centers of the magnetic poles of the magnet section and the q-axis representing boundaries between the magnetic poles, the magnetization surfaces of the core are between the slots adjacent to one another in the circumferential direction,
the coil is fixed by a nonmagnetic and elastic fixing material in the slots, and
a facing surface of the magnet section that faces the magnetizing yoke includes radially-recessed grooves in q-axis-side portions of the magnet section.