MOTOR AND ELECTRONIC DEVICE HAVING THE SAME

MOTOR AND ELECTRONIC DEVICE HAVING THE SAME

PROBLEM TO BE SOLVED: To provide a motor that can be downsized without reducing rotation accuracy. SOLUTION: A rotor frame 22 has an inside cylindrical portion having a predetermined inner diameter on the inner periphery thereof. A magnet 23 has a joint portion joined to the inside cylindrical porti...

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Bibliographische Detailangaben
Hauptverfasser: ASAI HIROKI, NAKAMARU TOORU, WADA KOJI, YASUDA KENTO, ASAI HIROYUKI, YONEI YASUO, KOBAYASHI MASAHIKO
Format: Patent
Sprache:eng
Schlagworte:
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a motor that can be downsized without reducing rotation accuracy. SOLUTION: A rotor frame 22 has an inside cylindrical portion having a predetermined inner diameter on the inner periphery thereof. A magnet 23 has a joint portion joined to the inside cylindrical portion of the rotor frame 22, and a projecting portion further projecting from one side end of the rotor frame 22 in the direction of one side end. The outer diameter of the projecting portion of the magnet 23 is larger than the inner diameter of the rotor frame 22. The joint portion of the magnet 23 is directly joined closely to an area covering from one side end of the rotor frame 22 to at least part of the inside cylindrical portion. COPYRIGHT: (C)2010,JPO&INPIT