CONTACTLESS CHARGING SYSTEM AND CONTACTLESS CHARGING METHOD

Title:

CONTACTLESS CHARGING SYSTEM AND CONTACTLESS CHARGING METHOD

Document Type and Number:

WIPO Patent Application WO/2013/062253

Kind Code:

A1

Abstract:

A contactless charging method according to the present invention is applied to a contactless charging system (1) which comprises a transmitting unit (10) having a primary coil (11) and a receiving unit (20) having a secondary coil (21) and which charges a battery (30) electrically connected to the secondary coil (21) by the electromagnetic induction generated between the primary coil (11) and the secondary coil (21) and which supplements the charging efficiency of the battery (30) by varying the charging efficiency used in the electromagnetic induction in proportion to the charging efficiency of the battery (30) that varies according to the position of the secondary coil (21) relative to the primary coil (11). The contactless charging method comprises: a step of detecting a charging frequency when a charging operation is performed by enabling the primary coil (11) to get closer to the secondary coil (21); and a step of outputting the charging efficiency of the battery (30) acquired from the detected charging frequency such that a user may know the charging efficiency.

Inventors:

KIM SEON SEOB (KR)

Application Number:

PCT/KR2012/008281

Publication Date:

May 02, 2013

Filing Date:

October 11, 2012

Export Citation:

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Assignee:

KIM SEON SEOB (KR)

International Classes:

H02J7/04; H02J17/00

Domestic Patent References:

WO2005109597A1

2005-11-17

Foreign References:

KR20110069869A	2011-06-23
JP2010206871A	2010-09-16
KR20070017530A	2007-02-12
KR950005819B1	1995-05-31
KR200217303Y1	2001-03-15
KR20100074595A	2010-07-02
KR101063154B1	2011-09-08
KR20090025876A	2009-03-11
KR20090059507A	2009-06-11

Other References: