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Patent Searching and Data


Title:
NON-CONTACT POWER FEEDING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/149037
Kind Code:
A1
Abstract:
When the measured value of an output voltage obtained by rectifying the power received through a resonant circuit 20 having a receiving coil 21 for receiving power from the transmission coil 14 of a power transmitting device 2 and a resonant capacitor 22 connected in series with the receiving coil 21 becomes greater than or equal to an upper threshold value, a power receiving device 3 of this non-contact power feeding device 1 short-circuits a resonant suppression coil 30 provided so as to be able to be magnetically coupled with the receiving coil 21. When the power transmitting device 2 and the power receiving device 3 are arranged so that the power is transmitted from the transmission coil 14 to the receiving coil 21, the receiving coil 21 and the resonant suppression coil 30 are arranged so that the degree of coupling between the resonant suppression coil 30 and the transmission coil 14 becomes higher than the degree of coupling between the receiving coil 21 and the transmission coil 14.

Inventors:
NOMURA ATSUSHI (JP)
NAKAO GORO (JP)
KAWAI YUSUKE (JP)
NAKAJO MASANOBU (JP)
TAKEYAMA TAKAHIRO (JP)
TABATA KENICHI (JP)
Application Number:
PCT/JP2019/047251
Publication Date:
July 23, 2020
Filing Date:
December 03, 2019
Export Citation:
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Assignee:
OMRON TATEISI ELECTRONICS CO (JP)
International Classes:
H02J50/12; H02J7/00
Domestic Patent References:
WO2017081975A12017-05-18
Foreign References:
JP2017511101A2017-04-13
JP2015065724A2015-04-09
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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