Title:
WIRELESS POWER TRANSMISSION DEVICE, HEAT GENERATION CONTROL METHOD FOR WIRELESS POWER TRANSMISSION DEVICE, AND PRODUCTION METHOD FOR WIRELESS POWER TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/171163
Kind Code:
A1
Abstract:
Provided is a heat generation control method for a wireless power transmission device (1) in which a magnetic field is changed with respect to a power-receiving module (3), said power-receiving module (3) having connected thereto a power supply target device (10) comprising a lithium ion secondary battery (9) that can be charged using a constant current/constant voltage charging method, and power is supplied from a power supply module (2). By adjusting the value of a connection coefficient between the power supply module (2) and a coil of the power-receiving module (3), a load fluctuation characteristic that is the amount of change in the value of the input impedance (Zin) of the wireless power transmission device (1) with respect to the charging time during constant voltage charging is adjusted, thereby making it possible to adjust heat generation by the wireless power transmission device.
Inventors:
HATANAKA TAKEZO (JP)
TSUDA HISASHI (JP)
TSUDA HISASHI (JP)
Application Number:
PCT/JP2014/052067
Publication Date:
October 23, 2014
Filing Date:
January 30, 2014
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
H02J7/00; H01F38/14
Domestic Patent References:
| WO2012086625A1 | 2012-06-28 |
Foreign References:
| JP2012147659A | 2012-08-02 | |||
| JP2012105503A | 2012-05-31 | |||
| JP2010503368A | 2010-01-28 | |||
| JP2002315209A | 2002-10-25 | |||
| JP4624768B2 | 2011-02-02 | |||
| JP2010239769A | 2010-10-21 |
Other References:
See also references of EP 2993677A4
Attorney, Agent or Firm:
KAJI, SUHARA & ASSOCIATES (JP)
特許業務法人梶 and the Suhara patent firm (JP)
特許業務法人梶 and the Suhara patent firm (JP)
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