Title: Electric motor rotor and method of manufacturing the same
Application Number: 200610169239 Application Date: 2006.12.21
Publication Number: 1988325 Publication Date: 2007.06.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H02K1/27;H02K15/03
Applicant(s) Name: Fanuc Ltd. Address:
Inventor(s) Name: Okamoto Takashi;Maeda Takuya;Funakubo Makoto;Tamak
Attorney & Agent: zhangjing qiang
Abstract:
    A rotor of an electric motor, including a rotor core having a plurality of magnet-retaining apertures, a plurality of permanent magnets individually received and retained in the magnet-retaining apertures of the rotor core, and a resinous filler filling a gap defined between each magnet-retaining aperture and each permanent magnet and fixing the permanent magnets to the magnet-retaining apertures. The rotor also includes an engaging projection provided in the rotor core, the engaging projection tightly engaged with each of the permanent magnets received in the magnet-retaining apertures and temporarily holding each permanent magnet at a predetermined position in a corresponding magnet-retaining aperture, in an unfinished state of the rotor where the resinous filler is not arranged in the gap.
Time: 15
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