Title:
CONTACTLESS POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/136839
Kind Code:
A1
Abstract:
A contactless power supply device (10) comprises: a primary coil (12) connected to a high-frequency power supply (11); a secondary coil (13) for receiving power generated by the primary coil (12); and a resonance coil (14) arranged in contact with the secondary coil (13) between the primary coil (12) and the secondary coil (13). Each area of the planarly viewed secondary coil (13) and resonance coil (14) is equal to or smaller than the area of the planarly viewed primary coil (12). The primary coil (12) is formed by spirally winding a first litz wire (25) into a planar shape. The resonance coil (14) is formed with serially connected double-layer coils (27, 28) that are formed by spirally winding a second litz wire (26) into a planar shape. The secondary coil (13) is formed by spirally winding two third litz wires (29, 29a) arranged in parallel into a planar shape.
More Like This:
Inventors:
HONDA KEIICHI (JP)
IMOTO YUTAKA (JP)
IMOTO YUTAKA (JP)
Application Number:
PCT/JP2014/055632
Publication Date:
September 12, 2014
Filing Date:
March 05, 2014
Export Citation:
Assignee:
HEADS CO LTD (JP)
International Classes:
B60L5/00; B60L11/18; B60M7/00; H01F38/14; H02J7/00
Foreign References:
| JP2010273441A | 2010-12-02 | |||
| JP2012120410A | 2012-06-21 | |||
| JP2010016235A | 2010-01-21 | |||
| JP4318742B1 | 2009-08-26 | |||
| JP2012249401A | 2012-12-13 | |||
| JP4318742B1 | 2009-08-26 | |||
| JP3442937B2 | 2003-09-02 |
Other References:
See also references of EP 2879273A4
Attorney, Agent or Firm:
NAKAMAE FUJIO (JP)
Fujio Nakamae (JP)
Fujio Nakamae (JP)
Download PDF: