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Title:
CONTACTLESS FEEDING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/171786
Kind Code:
A1
Abstract:
According to the present invention when a measurement value of an output voltage of electric power output from a resonance circuit 20, which receives electric power from a power transmission device 2, deviates from an allowable range of a predetermined voltage, a power reception device 3 of a contactless feeding apparatus 1 transmits, to a short-circuited circuit 30, determination information which short-circuits the resonance circuit 20 and indicates that the contactless feeding apparatus is not performing a constant voltage output operation. Meanwhile, upon receiving the determination information, the transmission device 2 of the contactless feeding apparatus 1 detects, in response to a measurement value of a current flowing to the transmission coil 14, the switching frequency of AC power at which the contactless power feeding apparatus performs a constant voltage output operation, the AC power being fed from a power feeding circuit 10 to a transmission coil 14,.

Inventors:
NAKAO, Goro (801 Minamifudodo-cho, Horikawahigashiiru, Shiokoji-dori, Shimogyo-ku, Kyoto-sh, Kyoto 30, 〒6008530, JP)
KAWAI, Yusuke (801 Minamifudodo-cho, Horikawahigashiiru, Shiokoji-dori, Shimogyo-ku, Kyoto-sh, Kyoto 30, 〒6008530, JP)
NOMURA, Atsushi (801 Minamifudodo-cho, Horikawahigashiiru, Shiokoji-dori, Shimogyo-ku, Kyoto-sh, Kyoto 30, 〒6008530, JP)
ZAITSU, Toshiyuki (801 Minamifudodo-cho, Horikawahigashiiru, Shiokoji-dori, Shimogyo-ku, Kyoto-sh, Kyoto 30, 〒6008530, JP)
Application Number:
JP2019/001547
Publication Date:
September 12, 2019
Filing Date:
January 18, 2019
Export Citation:
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Assignee:
OMRON CORPORATION (801 Minamifudodo-cho, Horikawahigashiiru Shiokoji-dori, Shimogyo-ku, Kyoto-sh, Kyoto 30, 〒6008530, JP)
International Classes:
H02J50/80; H02J7/00; H02J50/12
Foreign References:
JP2017005790A2017-01-05
JP2012217228A2012-11-08
JP2015149803A2015-08-20
JP2010136464A2010-06-17
Attorney, Agent or Firm:
AOKI, Atsushi et al. (SEIWA PATENT & LAW, Toranomon 37 Mori Bldg. 5-1, Toranomon 3-chome, Minato-k, Tokyo 23, 〒1058423, JP)
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