MAGNETICALLY LEVITATING MOTOR - Sankyo Seiki Co., Ltd.

Title:

MAGNETICALLY LEVITATING MOTOR

Document Type and Number:

Japanese Patent JP3668626

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a stable magnetically levitating with a shorter axis length while a control system is simplified.
SOLUTION: Rotors 2a and 2b wherein, comprising a magnetic body, a permanent magnet 7 is fitted to the peripheral surface on one end side, a DC magnetic field generating means 4 which, provided on the side of stators 3a and 3b, distributes a bias magnetic flux which radially expands from the inside of the rotors 2a and 2b, first stator coils 5a and 5b for generating a bipolar levitation control magnetic flux for controlling the stators 3a and 3b for levitation, and a second stator coil 6 for setting a rotation magnetic field to the stator 3a, are provided. DC magnetic field from the DC magnetic field generating means 4 and the first stator coils 5a and 5b for levitation control are applied with a levitation control current so as to levitation-control the rotors 2a and 2b, and the second stator coil 6 provided adjoining the first stator coil 5a is electrified to provide a rotational force to the rotor 2a.

Inventors:

Yoji Okada
Hideki Kinbako

Application Number:

JP35512498A

Publication Date:

July 06, 2005

Filing Date:

December 14, 1998

Export Citation:

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