Title:
A manufacturing method of the rotor for rotating machines
Document Type and Number:
Japanese Patent JP5910036
Kind Code:
B2
Abstract:
At least part of each bridge portion (22) is heated and molten to form a keyhole (6), and a nonmagnetic element (81) is disposed around the keyhole (6). Thus, even when the width of the bridge portion (22) in the radial direction is increased, the bridge portion (22) is demagnetized. Therefore, leakage flux in the bridge portion (22) is reduced, and the output power of a motor is increased. Moreover, by increasing the width of the bridge portion (22) in the radial direction, the strength of the bridge portion (22) is increased, and breakage of the bridge portion (22) due to a centrifugal force at high-speed rotation of a rotor (1) is prevented.
Inventors:
Takaya Nagahama
Masami Naka
Koji Kitahata
Yoshiyuki Shibata
Shigeki Nagase
Takashi Kageyama
Masami Naka
Koji Kitahata
Yoshiyuki Shibata
Shigeki Nagase
Takashi Kageyama
Application Number:
JP2011261351A
Publication Date:
April 27, 2016
Filing Date:
November 30, 2011
Export Citation:
Assignee:
JTEKT Corporation
International Classes:
H02K1/27; H02K15/02; H02K15/03
Domestic Patent References:
| JP2009219341A | ||||
| JP2005039909A | ||||
| JP2004328859A | ||||
| JP6074124A | ||||
| JP2011062703A | ||||
| JP1118324A | ||||
| JP201155688A |
Attorney, Agent or Firm:
Kobayashi Osamu
Kiichi Yamamoto
Kiichi Yamamoto