Title:
ROTOR, MOTOR, AND METHOD OF MANUFACTURING ROTOR
Document Type and Number:
Japanese Patent JP2019013115
Kind Code:
A
Abstract:
To provide a rotor, a motor, and a method of manufacturing the rotor capable of suppressing or preventing deviation of a magnet in an axial direction.SOLUTION: A motor comprises a rotor that can rotate, and a stator that rotates and drives the rotor. The rotor comprises a rotor core 11, and a plurality of magnets 12 arranged in a circumferential direction. Each magnet 12 is provided on a rotor core inner lateral face 11a at the radial inside of the rotor core 11. The rotor core 11 has a projection 112 that protrudes radially inward from the inner lateral face at the radial inside of the rotor core 11, and includes an upper projection 1121 provided at an axial upper side of the magnet 12 and a lower projection 1122 provided at an axial lower side of the magnet 12. An interval between a projection opposed surface 112a axially opposed to an axial end surface 12b of the magnet 12 at least at one of the upper projection 1121 and the lower projection 1122, and the axial end surface 12b, becomes larger as it goes radially inward.SELECTED DRAWING: Figure 4A
Inventors:
SHIRAISHI YUKINOBU
HONDA TAKESHI
UCHINO TAKASHI
KURAMOTO SATOSHI
OYAMA SEIICHI
WATANABE YUSUKE
KANAZAWA YUKI
HONDA TAKESHI
UCHINO TAKASHI
KURAMOTO SATOSHI
OYAMA SEIICHI
WATANABE YUSUKE
KANAZAWA YUKI
Application Number:
JP2017129730A
Publication Date:
January 24, 2019
Filing Date:
June 30, 2017
Export Citation:
Assignee:
NIHON DENSAN KK
International Classes:
H02K1/27; H02K15/02
Attorney, Agent or Firm:
Sano patent office