Title:
POWER TRANSMITTING DEVICE, POWER RECEIVING DEVICE, POWER SUPPLY SYSTEM, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/128518
Kind Code:
A1
Abstract:
The invention addresses the problem of providing, in wireless power supply, a power supply system capable of maintaining a relatively high power transmission efficiency even when a power transmission distance is long. A power transmitting coil unit (210) has a plurality of resonance coils (221) arranged so as to form a periodical structure. The resonance coils (221) form a transmission line for an electromagnetic wave, and a standing wave of an electromagnetic propagating wave occurs in the power transmitting coil unit (210). Similarly, a power receiving coil unit (310) has a plurality of resonance coils (321) arranged so as to form a periodical structure. The power transmission efficiency is maintained relatively high even if the distance between a power transmitting device (200) and a power receiving device (300) exceeds twice.
Inventors:
KOBAYASHI NAOKI (JP)
TSUKAGOSHI TSUNEO (JP)
FUKUDA HIROSHI (JP)
TOYAO HIROSHI (JP)
TSUKAGOSHI TSUNEO (JP)
FUKUDA HIROSHI (JP)
TOYAO HIROSHI (JP)
Application Number:
PCT/JP2012/007312
Publication Date:
September 06, 2013
Filing Date:
November 14, 2012
Export Citation:
Assignee:
NEC CORP (JP)
KOBAYASHI NAOKI (JP)
TSUKAGOSHI TSUNEO (JP)
FUKUDA HIROSHI (JP)
TOYAO HIROSHI (JP)
KOBAYASHI NAOKI (JP)
TSUKAGOSHI TSUNEO (JP)
FUKUDA HIROSHI (JP)
TOYAO HIROSHI (JP)
International Classes:
H02J17/00
Foreign References:
| JP2011160634A | 2011-08-18 | |||
| JP2011151989A | 2011-08-04 | |||
| JP2010130878A | 2010-06-10 | |||
| JP2011147271A | 2011-07-28 |
Attorney, Agent or Firm:
IEIRI, Takeshi (JP)
House ON 健 (JP)
House ON 健 (JP)
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Claims:
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