Title:
CONTACTLESS POWER TRANSMISSION SYSTEM, POWER TRANSMITTING DEVICE, AND POWER RECEIVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/198355
Kind Code:
A1
Abstract:
The purpose of the present invention is to obtain a high degree of freedom for disposing a power receiving device with respect to a power transmitting device and a high power transmission efficiency from the power transmitting device to the power receiving device. This contactless power transmission system 100 is provided with: a power transmitting device 20 having a plurality of power transmitting electrodes disposed on a power transmitting surface; and a power receiving device 10 having a plurality of power receiving electrodes 11 disposed on a power receiving surface and electrically coupled with the power transmitting electrodes. The plurality of power transmitting electrodes include a plurality of first power transmitting electrodes 21 and a plurality of second power transmitting electrodes 22, wherein the first power transmitting electrodes 21 have a phase opposite to that of the second power transmitting electrodes 22. The plurality of power transmitting electrodes and the plurality of power receiving electrodes 11 are arranged so as to satisfy such a condition that: regardless of the relative position and orientation of the power receiving surface with respect to the power transmitting surface in a state that the power receiving surface is arranged so as to overlap with the power transmitting surface, one or more power receiving electrodes 11 overlap with the first power transmitting electrodes 21 and another one or more power receiving electrodes 11 overlap with the second power transmitting electrodes 22; and any of the power receiving electrodes 11 overlapping with the power transmitting electrodes overlaps with only either one of the first power transmitting electrodes 21 and the second power transmitting electrodes 22.
Inventors:
MIYAZAKI HIROYUKI (JP)
Application Number:
PCT/JP2019/007028
Publication Date:
October 17, 2019
Filing Date:
February 25, 2019
Export Citation:
Assignee:
SUMIDA CORP (JP)
International Classes:
H02J50/05
Domestic Patent References:
| WO2012086411A1 | 2012-06-28 | |||
| WO2015097809A1 | 2015-07-02 | |||
| WO2014038017A1 | 2014-03-13 |
Foreign References:
| JP2010148287A | 2010-07-01 | |||
| JP2014150646A | 2014-08-21 |
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