Title:
WIRELESS POWER TRANSMISSION DEVICE AND METHOD, AND RELAY
Document Type and Number:
WIPO Patent Application WO/2013/005415
Kind Code:
A1
Abstract:
This wireless power transmission device (1) is provided with a power transmitter (100) for transmitting power by magnetic resonance, and a power receiver (150) for receiving power sent from the power transmitter (100). The power transmitter (100) and/or the power receiver (150) has multiple resonator elements (a first power transmission coil (110) and a second power transmission coil (120)) which have different resonance frequencies and are used in magnetic resonance power transmission with the other of said power transmitter (100) or power receiver (150), wherein the multiple resonator elements (the first power transmission coil (110) and the second power transmission coil (120)) used in power transmission are changed depending on the connection state between the power receiver (150) and the power transmitter (100).
Inventors:
TANOMURA MASAHIRO (JP)
TSUJI MASAYOSHI (JP)
HATTORI WATARU (JP)
YOSHIDA SHUHEI (JP)
TSUJI MASAYOSHI (JP)
HATTORI WATARU (JP)
YOSHIDA SHUHEI (JP)
Application Number:
PCT/JP2012/004283
Publication Date:
January 10, 2013
Filing Date:
July 02, 2012
Export Citation:
Assignee:
NEC CORP (JP)
TANOMURA MASAHIRO (JP)
TSUJI MASAYOSHI (JP)
HATTORI WATARU (JP)
YOSHIDA SHUHEI (JP)
TANOMURA MASAHIRO (JP)
TSUJI MASAYOSHI (JP)
HATTORI WATARU (JP)
YOSHIDA SHUHEI (JP)
International Classes:
H02J17/00
Domestic Patent References:
| WO2011001524A1 | 2011-01-06 |
Foreign References:
| JP2010252497A | 2010-11-04 | |||
| JP2011030317A | 2011-02-10 |
Attorney, Agent or Firm:
HAYAMI, SHINJI (JP)
Shinji Hayami (JP)
Shinji Hayami (JP)
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Claims: