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

Claim 7:
8. A method of 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 method comprising:
an installation step of installing the magnet section to be magnetized to a magnetizing yoke, 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; and
a magnetization step of supplying electric current to the coil to generate a magnetic field and magnetize the magnet section,
wherein
in the installation step, 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.