Title:
ロータ、モータ、およびロータの製造方法
Document Type and Number:
Japanese Patent JP7431180
Kind Code:
B2
Abstract:
In order to prevent, in a rotor (10) of a motor or the like, part of a magnet (21) provided around a rotating shaft (20) from scattering, the rotor (10) has: the cylindrical magnet (21) through which the rotating shaft (20) passes; a first holder (131) covering the magnet (21) from one side (LI) of the rotating shaft (20) in the axial direction; and a second holder (136) covering the magnet (21) from the other side (L2) in the axial direction. The magnet (21) is press-fit into a first body portion (134) of the first holder (131) and a second body portion (139) of the second holder (136), and the first end (132) of the first body portion (134) and the second end (137) of the second body portion (139) are joined to each other by welding or the like. The inner diameter (ϕ132) of the first end (132) and the inner diameter (ϕ137) of the second end (137) are larger than the outer diameter (ϕ21b) of the magnet (21).
More Like This:
Inventors:
Masahiro Kosuga
Masato Gomyo
Kazuma Yamamoto
Masato Gomyo
Kazuma Yamamoto
Application Number:
JP2020569377A
Publication Date:
February 14, 2024
Filing Date:
November 01, 2019
Export Citation:
Assignee:
Nidek Instruments Co., Ltd.
International Classes:
H02K1/2726; H02K15/03
Domestic Patent References:
| JP2241339A | ||||
| JP63092246A | ||||
| JP4183238A | ||||
| JP2017158340A | ||||
| JP57097354A | ||||
| JP5244738A |
Foreign References:
| US20180097413 |
Attorney, Agent or Firm:
Toru Kawai
Shin Kodaira
Nobuko Kawaguchi
Shin Kodaira
Nobuko Kawaguchi