MOTOR

PURPOSE:To prevent shaft blurring caused by the rattle of shaft in the radial direction, by imbalancedly setting the magnet field between a stator and a rotor so that the shaft of rotor will be pressed to one direction in the radial direction of bearing of the stator. CONSTITUTION:In a brushless mot...

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Bibliographic Details
Main Authors NISHIKAWA MITSUO, NOGUCHI YOSHIYUKI, YAMAZAKI SHIGEKI, SAOTOME TOSHIO
Format Patent
LanguageEnglish
Published 19.09.1988
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:PURPOSE:To prevent shaft blurring caused by the rattle of shaft in the radial direction, by imbalancedly setting the magnet field between a stator and a rotor so that the shaft of rotor will be pressed to one direction in the radial direction of bearing of the stator. CONSTITUTION:In a brushless motor 1, a stepped section 10a to a part of a stator yoke 10 of a stator 3 is formed in projecting on the side of sheet coil 14. In rotating a rotor 2, imbalance is caused to magnetic attractive force of a rotor magnet 8 against the stator yoke 10, and the rotor magnet 8 will always be pulled to rotate to the stepped section 10a of the stator yoke 10, so that the whole of a shaft 5 for rotor 2 is pressed to one direction in the radial direction of a bearing 11 of the stator 3 and rotates under the so-called laterally pressed condition.
Bibliography:Application Number: JP19870055968