Title:
MAGNETIC GEAR DEVICE
Document Type and Number:
Japanese Patent JP2019017188
Kind Code:
A
Abstract:
To provide a magnetic gear device in which transmission efficiency is improved by restraining generation of eddy current.SOLUTION: A rotor has a rotor yoke consisting of a soft magnetic material, the rotor yoke is provided with multiple through holes, penetrating in the rotational axis direction, radially about the revolving shaft of the rotor, the multiple through holes are embedded with permanent magnets, respectively, and each permanent magnet is magnetized in a direction perpendicular to the radiation direction in a state embedded in the through hole, and arranged so that the opposing surfaces of adjoining permanent magnets have the same polarity. With such an arrangement, magnetic flux amount of the rotor can be increased. Since a cavity extends to the stator side on the end face of a through hole provided in the rotor yoke of soft magnetic material, on the side facing the stator, and a rotor holder composed of a nonmagnetic material is exposed to the end face of the through hole on the side facing the stator, short circuit of magnetic flux can be circumvented, and efficiency of the magnetic gear is improved.SELECTED DRAWING: Figure 1
Inventors:
SUZUKI YUSHIN
TAKIGAWA MAKITO
SOTANI KINGO
NAKAMURA KENJI
TAKIGAWA MAKITO
SOTANI KINGO
NAKAMURA KENJI
Application Number:
JP2017133276A
Publication Date:
January 31, 2019
Filing Date:
July 07, 2017
Export Citation:
Assignee:
PROSPINE KK
UNIV TOHOKU
UNIV TOHOKU
International Classes:
H02K49/10; F16H49/00