Title:
RADIAL MAGNETIC BEARING AND BLOWER
Document Type and Number:
Japanese Patent JP2018105457
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To downsize a radial magnetic bearing while maintaining suction force.SOLUTION: A radial magnetic bearing 10 for supporting a rotating body 2 in a non-contact manner from an outside in a radial direction comprises a plurality of electromagnets 11 provided opposite to the rotating body 2 to generate a magnetic flux for supporting the rotating body 2. Each of the plurality of electromagnets 11 comprises: back yoke parts 14 and 15; a pair of magnetic pole teeth parts 16 and 17 that constitutes a magnetic path together with the back yoke parts 14 and 15 and the rotating body 2; and coils 18 and 19 wound around the pair of magnetic pole teeth parts 16 and 17, respectively. The pair of magnetic pole teeth parts 16 and 17 each comprises: base parts 16a and 17a extending from the back yoke parts 14 and 15 toward the rotating body 2 so that a distance between the pair of magnetic pole teeth parts 16 and 17 is decreased; and leading end parts 16b and 17b extending from the base parts 16a and 17a toward the rotating body 2 so that the distance between the pair of magnetic pole teeth parts 16 and 17 is increased or kept.SELECTED DRAWING: Figure 2
Inventors:
OKUMA MASAFUMI
NIMURA MASANORI
NIMURA MASANORI
Application Number:
JP2016254118A
Publication Date:
July 05, 2018
Filing Date:
December 27, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F16C32/04; F04D29/00; F04D29/058
Domestic Patent References:
| JP2002199655A | 2002-07-12 | |||
| JPH06311675A | 1994-11-04 | |||
| JPH04121494U | 1992-10-29 | |||
| JP2005098520A | 2005-04-14 |
Foreign References:
| US20140259636A1 | 2014-09-18 |
Attorney, Agent or Firm:
Takuji Yamada
Mitsuo Tanaka
Haruo Nakano
Mitsuo Tanaka
Haruo Nakano