Title:
弓形磁石片、永久磁石片、永久磁石組立体、永久磁石応用装置およびモータ
Document Type and Number:
Japanese Patent JP6517189
Kind Code:
B2
Abstract:
This arcuate magnet piece (1) is provided with: coupling side surfaces (6, 7) which are coupled with other adjacently joined arcuate magnet pieces (1A); a curved inner peripheral surface (3); and a curved outer peripheral surface (2) which faces the inner peripheral surface (3). The coupling side surfaces (6, 7) are provided with tip surfaces (6a, 7a) which intersect, at prescribed angles (θ1, θ2), tangents (T1, T2) to the direction of curvature of the outer peripheral surface (2). The coupling side surfaces (6, 7) are polarized such that, in cases when the gaps formed with the coupling side surfaces of the other arcuate magnet pieces (1A) are disposed so as to be substantially parallel, the magnetic poles of the other joined arcuate magnet pieces (1A) are different.
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Inventors:
Nobuyuki Maho
Masashi Goto
Masashi Goto
Application Number:
JP2016510572A
Publication Date:
May 22, 2019
Filing Date:
March 27, 2015
Export Citation:
Assignee:
tdk Corporation
International Classes:
H02K1/27; H01F7/02; H02K1/17; H02K15/03
Domestic Patent References:
| JP63041166U | ||||
| JP59156264U | ||||
| JP2010233346A | ||||
| JP2004259850A | ||||
| JP1114354A | ||||
| JP2012228072A |
Foreign References:
| WO2003075292A1 |
Attorney, Agent or Firm:
Maeda/Suzuki International Patent Corporation