CHARGING TABLE FOR CELLULAR PHONE

WIPO Patent Application WO/2012/132142

A1

[Problem] To detect the position of an induction coil of a cellular phone accurately, and charge a battery thereof efficiently in contactless state, while preventing a decrease in reception sensitivity of an antenna of the cellular phone. [Solution] A charging table for a cellular phone is provided with: a case (20) comprising an upper-face plate (21); a power supplying coil (11) that moves along the undersurface of the upper-face plate (21); an AC power supply (12) connected to the power supply coil (11); a moving mechanism (13) for moving the power supply coil (11); and a position detection controller (14) that comprises a plurality of rows of position detection coils (30), and that detects the position of a cellular phone (50) and makes the power supplying coil (11) draw near an induction coil (51) of the cellular phone (50). When a cellular phone (50) is placed on the upper-face plate (21), the charging table detects the position of the induction coil (51) with the position detection controller (14), and the position detection controller (14) controls the moving mechanism (13) to make the power supply coil (11) draw near the induction coil (51), to charge a battery (52) of the cellular phone (50). The position detection coils (30) are wiring lines (38) formed on the surface of a printed circuit board (37), and comprise zigzag-shaped or loop-shaped nonlinear lines (39).

ARAI YUJI (JP)
TERAO KYOZO (JP)

PCT/JP2011/079617

October 04, 2012

December 21, 2011

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SANYO ELECTRIC CO (JP)
ARAI YUJI (JP)
TERAO KYOZO (JP)

H02J17/00; H02J7/00

US20090153098A1	2009-06-18
US5214392A	1993-05-25

OHASHI MASAAKI (JP)
Masaaki Ohashi (JP)

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