Title:
COIL FOR WIRELESS ELECTRIC POWER TRANSMISSION, WIRELESS ELECTRIC POWER TRANSMISSION DEVICE, WIRELESS ELECTRIC POWER RECEPTION DEVICE, AND WIRELESS ELECTRIC POWER TRANSMISSION SYSTEM
Document Type and Number:
Japanese Patent JP2019149453
Kind Code:
A
Abstract:
To provide a coil for wireless electric power transmission that comprises a hollow first conductor having a cavity inside and a plurality of second conductors wound around an outer periphery of the first conductor, and is characterized in that: the second conductors are mutually twisted around the outer periphery of the first conductor; and the first conductor and the plurality of second conductors are electrically connected to each other in parallel and also electrically separated from each other.SOLUTION: A coil for wireless electric power transmission comprises a hollow first conductor having a cavity inside and a plurality of second conductors wound around an outer periphery of the first conductor, and is characterized in that: the second conductors are mutually twisted around the outer periphery of the first conductor; and the first conductor and the plurality of second conductors are connected to each other at both end parts, and also electrically connected in parallel more on a center side than the both end parts.SELECTED DRAWING: Figure 1
Inventors:
SUGASAWA MASAYUKI
KOBAYASHI MASAYUKI
KOBAYASHI MASAYUKI
Application Number:
JP2018033253A
Publication Date:
September 05, 2019
Filing Date:
February 27, 2018
Export Citation:
Assignee:
TDK CORP
International Classes:
H01F27/28; H01F5/06; H01F38/14; H02J7/00; H02J50/10; H02J50/80
Domestic Patent References:
| JPH10108376A | 1998-04-24 | |||
| JPS57132413U | 1982-08-18 | |||
| JPH06119827A | 1994-04-28 | |||
| JP2015220063A | 2015-12-07 | |||
| JPS59104423U | 1984-07-13 | |||
| JP2012119615A | 2012-06-21 | |||
| JP2015012656A | 2015-01-19 |
Attorney, Agent or Firm:
Sumio Tanai
Norihiko Ara
Masato Iida
Akihiro Ogino
Norihiko Ara
Masato Iida
Akihiro Ogino