Title:
CONTACTLESS POWER TRANSFER DEVICE FOR MOVING PART
Document Type and Number:
WIPO Patent Application WO/2012/115047
Kind Code:
A1
Abstract:
Provided is a contactless power transfer device for a moving part, and in the contactless power transfer device, it can be simply determined whether a positional deviation between a power transmission coil and a power receiving coil is within an allowable range. Each of the power transmission coil and the power receiving coil comprises an H-shaped core, and search coils (Cy1a, Cy1b, Cy2a, Cy2b, Cx1, and Cx2) are installed on a magnetic pole part of the H-shaped core of the power transmission coil. A y-direction positional deviation between the power transmission coil and the power receiving coil is detected using voltages measured at Cy1a, Cy1b, Cy2a, and Cy2b, and an x-direction positional deviation is detected using voltages measured at Cx1 and Cx2. In addition, the directivity of positional deviation can be checked in the contactless power transfer device.
Inventors:
ABE SHIGERU (JP)
YASUDA TOMIO (JP)
SUZUKI AKIRA (JP)
YASUDA TOMIO (JP)
SUZUKI AKIRA (JP)
Application Number:
PCT/JP2012/053996
Publication Date:
August 30, 2012
Filing Date:
February 20, 2012
Export Citation:
Assignee:
TECHNOVA INC (JP)
UNIV SAITAMA NAT UNIV CORP (JP)
ABE SHIGERU (JP)
YASUDA TOMIO (JP)
SUZUKI AKIRA (JP)
UNIV SAITAMA NAT UNIV CORP (JP)
ABE SHIGERU (JP)
YASUDA TOMIO (JP)
SUZUKI AKIRA (JP)
International Classes:
H02J7/00; B60L5/00; B60L50/16
Domestic Patent References:
| WO2009041058A1 | 2009-04-02 | |||
| WO2007029438A1 | 2007-03-15 |
Foreign References:
| JP2010130729A | 2010-06-10 | |||
| JP2011050127A | 2011-03-10 | |||
| JP2008288889A | 2008-11-27 |
Other References:
KANAI KENJI; KANEKO YASUYOSHI; ABE SHIGERU: "Solution to Voltage Ratio Problem on the Moving Pick-up Type Contactless Power Transfer System using Series and Parallel Resonant Capacitors", TECHNICAL MEETING ON SEMICONDUCTOR POWER CONVERTER, SPC-1 0-021, 29 January 2010 (2010-01-29)
M. BUDHIA; G.A. COVIC; J.T. BOYS: "A New Magnetic Coupler for Inductive Power Transfer Electric Vehicle Charging Systems", 36TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY, IECON 2010, 7 November 2010 (2010-11-07)
See also references of EP 2680398A4
M. BUDHIA; G.A. COVIC; J.T. BOYS: "A New Magnetic Coupler for Inductive Power Transfer Electric Vehicle Charging Systems", 36TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY, IECON 2010, 7 November 2010 (2010-11-07)
See also references of EP 2680398A4
Attorney, Agent or Firm:
OHASHI KOJI (JP)
Kimiharu Ohashi (JP)
Kimiharu Ohashi (JP)
Download PDF:
Claims: