Title:
BEARING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/167247
Kind Code:
A1
Abstract:
A bearing device (1) comprises a bearing part (B), a magnetic ring (12), a bearing cap (11), a stator (17), and a circuit board (18). The bearing cap (11) closes an inner-side opening end of an outer member (6). The stator (17) is fixed to the inner surface of the bearing cap (11) so as to face the magnetic ring (12), and forms a generator (G) together with the magnetic ring (12). The circuit board (18) is fixed to the inner surface of the bearing cap (11). The circuit board (18) includes a power supply circuit (23) that rectifies AC voltage of the generator (G), sensors (24, 25) that monitor the state of the bearing part (B), and a wireless communication circuit (26) that wirelessly transmits outputs of the sensors (24, 25) to the outside.
Inventors:
KOIKE TAKASHI (JP)
FUKUSHIMA YASUYUKI (JP)
FUKUSHIMA YASUYUKI (JP)
Application Number:
PCT/JP2023/007640
Publication Date:
September 07, 2023
Filing Date:
March 01, 2023
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C41/00; B60B35/02; F16C19/18; F16C19/52; F16C33/76; H02K11/33; H02K11/35; H02K19/24; H02K21/24
Foreign References:
| JP2021127831A | 2021-09-02 | |||
| JP2019045436A | 2019-03-22 | |||
| JP2012036960A | 2012-02-23 | |||
| JP2019035508A | 2019-03-07 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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