Title:
MOTOR
Document Type and Number:
Japanese Patent JP2014204599
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To propose a motor capable of making the rotational speed of a rotor even, suppressing vibration and noise of the whole motor, and preventing deterioration in its life and reliability by smoothly changing magnetic flux density in the direction of magnetic poles being lined up.SOLUTION: A motor 1 comprises a magnet 17 for a magnetic field that is provided on a rotor 3 and includes a plurality of split magnets 21 that are divided in the direction of magnetic poles being lined up and the direction intersectional to the direction of magnetic poles being lined up respectively, and the number of divisions at a boundary part between S and N poles of magnetic poles is larger than the number of divisions at a non-boundary part.
More Like This:
| JP4491211 | Permanent magnet type rotary electric machine |
| JP5747385 | IPM type bearingless motor |
| JP6572860 | Rotor |
Inventors:
MATSUOKA TADAO
Application Number:
JP2013080364A
Publication Date:
October 27, 2014
Filing Date:
April 08, 2013
Export Citation:
Assignee:
TOSHIBA CORP
TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORP
TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORP
International Classes:
H02K1/27
Foreign References:
| WO2011002043A1 | 2011-01-06 | |||
| WO2012111065A1 | 2012-08-23 |
Attorney, Agent or Firm:
Patent business corporation Tokyo international patent firm