Title:
モータ装置
Document Type and Number:
Japanese Patent JP7489796
Kind Code:
B2
Abstract:
The present invention improves the compactness and increases the performance of a motor device. This motor device has: a ring-shaped stator; a coil wound around the stator; a rotor shaft 27 which rotates around a rotational axis 31 and is provided on the inside of the stator in the radial direction thereof; a rotor core 22 which is secured to the rotor shaft 27, is equipped with a through hole 22e passing therethrough along the rotational axis 31, and is radially centered around said rotational axis 31; and a magnet 23 provided to the outer-circumferential surface of the rotor core 22. The rotor core 22 is equipped with a securing part 22a to be secured to the rotor shaft 27, and a holding part 22b for holding the magnet 23, and the through hole 22e includes a first through hole 22f and a second through hole 22g. The rotor shaft 27 is positioned in the first through hole 22f and not in the second through hole 22g. The securing part 22a and the holding part 22b are provided in positions which do not overlap one another in the direction of the rotational axis 31.
Inventors:
Yutaro Shiro
Yasushi Yoshida
Yasushi Yoshida
Application Number:
JP2020049348A
Publication Date:
May 24, 2024
Filing Date:
March 19, 2020
Export Citation:
Assignee:
Mitsuba Co., Ltd.
International Classes:
H02K1/278
Domestic Patent References:
| JP2018201274A | ||||
| JP2008182862A | ||||
| JP2009171736A |
Attorney, Agent or Firm:
Patent Attorney Tsutsui International Patent Office
Previous Patent: Building substructures and parking equipment
Next Patent: Refrigeration and heating equipment
Next Patent: Refrigeration and heating equipment