Title:
ROTOR, ROTOR DESIGN METHOD, AND ROTOR MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/070795
Kind Code:
A1
Abstract:
This rotor is an interior permanent magnet rotor which is embedded in a travel motor of a vehicle, and is provided with: a laminated core having steel sheets laminated with each other and a bonding layer for bonding the steel sheets adjacent to each other in a laminating direction; and a magnet embedded in the laminated core. When the rotor rotates at 11000 rpm, the maximum displacement amount of the outer edge of the laminated core toward the radial direction of the rotor is 0.1 mm or less.
Inventors:
SUENAGA SHIN (JP)
ARITA YOSHIHIRO (JP)
OHATA YOSHIFUMI (JP)
ARAMAKI TAKASHI (JP)
YAMAMOTO SHUJI (JP)
ARITA YOSHIHIRO (JP)
OHATA YOSHIFUMI (JP)
ARAMAKI TAKASHI (JP)
YAMAMOTO SHUJI (JP)
Application Number:
PCT/JP2020/037796
Publication Date:
April 15, 2021
Filing Date:
October 06, 2020
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
H02K1/22; H02K1/27
Domestic Patent References:
| WO2012102030A1 | 2012-08-02 |
Foreign References:
| JP2005094940A | 2005-04-07 | |||
| JP2002369422A | 2002-12-20 | |||
| JP2019161928A | 2019-09-19 | |||
| JP2014220911A | 2014-11-20 | |||
| JP2019185110A | 2019-10-24 | |||
| JP2014197981A | 2014-10-16 |
Other References:
"ELECTRICAL STEEL SHEETS. Representative examples of mechanical properties and space factor", NIPPON STEEL & SUMITOMO METAL, 2018, pages 21, XP055817482, Retrieved from the Internet [retrieved on 20201120]
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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