Title:
BEARING DEVICE, SPACER, AND MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/161843
Kind Code:
A1
Abstract:
This bearing device (1) comprises: a magnetic ring (8) fixed to an inner wheel (3); and a stator (9) fixed to an outer ring (2) so as to oppose the magnetic ring (8). The magnetic ring (8) and the stator (9) form a claw pole-type generator (G). The stator (9) includes a coil (12) and a magnetic yoke surrounding the coil (12). The magnetic yoke is formed by combining a first member (10-1) and a second member (10-2) of a magnetic body. The first member (10-1) and the second member (10-2) have the same shape. Each of the first member (10-1) and the second member (10-2) has a plurality of second claws (10b) arrayed in a comb teeth form. The plurality of first claws (10b) of the first member (10-1) and the plurality of second claws (10b) of the second member (10-1) are alternately disposed on a surface opposing the magnetic ring (8).
Inventors:
KOIKE TAKASHI (JP)
SHIBUYA YUSUKE (JP)
YAMAGUCHI SOTA (JP)
SHIBUYA YUSUKE (JP)
YAMAGUCHI SOTA (JP)
Application Number:
PCT/JP2021/003613
Publication Date:
August 19, 2021
Filing Date:
February 02, 2021
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
H02K1/14; F16C19/06; F16C33/80; F16C41/00; G01P3/487; H02K7/08; H02K7/18; H02K11/21; H02K11/25; H02K11/35; H02K21/14
Foreign References:
| JP2006170624A | 2006-06-29 | |||
| JP2008079384A | 2008-04-03 | |||
| JP2008072854A | 2008-03-27 | |||
| JP2019062684A | 2019-04-18 | |||
| JP2019180183A | 2019-10-17 | |||
| JPH037672U | 1991-01-24 | |||
| JP2006170624A | 2006-06-29 |
Other References:
See also references of EP 4106149A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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