Title:
CONTACTLESS POWER TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/040650
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a contactless charging device which reduces magnetic field leaking from an air gap between a primary coil and a secondary coil so as to suppress radiation noise in contactless electrical power transmission. The device is provided with a power supply device (1) comprising a primary coil (13) which generates a magnetic field by way of a supply current from a power supply (2), and a power receiving device (8) comprising a secondary coil (15) which receives power by way of the magnetic field from the primary coil (13). The primary coil (13) and the secondary coil (15) are formed by winding coil wires, and the number of turns of the secondary coil (15) is set to be greater than the number of turns of the primary coil (13).
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Inventors:
FUJITA ATSUSHI
SADAKATA HIDEKI
OMORI YOSHIHARU
MIYASHITA NORIHIRO
BESSYO DAISUKE
SADAKATA HIDEKI
OMORI YOSHIHARU
MIYASHITA NORIHIRO
BESSYO DAISUKE
Application Number:
PCT/JP2013/005494
Publication Date:
March 26, 2015
Filing Date:
September 17, 2013
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02J17/00; H01F38/14
Domestic Patent References:
| WO2013099222A1 | 2013-07-04 | |||
| WO2013099221A1 | 2013-07-04 | |||
| WO2011111168A1 | 2011-09-15 |
Foreign References:
| JP2009188131A | 2009-08-20 | |||
| JP2012110080A | 2012-06-07 | |||
| JP2009064856A | 2009-03-26 | |||
| JP2002272021A | 2002-09-20 | |||
| JP2013165190A | 2013-08-22 | |||
| JP2013051285A | 2013-03-14 | |||
| JP2013219210A | 2013-10-24 | |||
| JP2008087733A | 2008-04-17 |
Other References:
See also references of EP 3057113A4
Attorney, Agent or Firm:
WASHIDA, KIMIHITO (JP)
Koichi Washida (JP)
Koichi Washida (JP)
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