Invention Grant
- Patent Title: Power feeding coil unit and wireless power transmission device
- Patent Title (中): 供电线圈单元和无线电力传输装置
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Application No.: US14548420Application Date: 2014-11-20
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Publication No.: US09558882B2Publication Date: 2017-01-31
- Inventor: Noritaka Chiyo , Takeshi Kamono , Narutoshi Fukuzawa , Toshinori Matsuura , Tetsuya Nishiyama
- Applicant: TDK CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TDK CORPORATION
- Current Assignee: TDK CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2013-246444 20131128
- Main IPC: H01F5/00
- IPC: H01F5/00 ; H01F27/34 ; H01F27/28 ; H01F38/14 ; H02J5/00 ; H01F27/24 ; H01F27/42 ; H01F38/00 ; H01F37/00 ; B60L11/00 ; H01F27/38 ; H02J7/02 ; H02J7/00 ; H02J17/00
Abstract:
A power feeding coil unit includes a power feeding coil, and an auxiliary coil. The auxiliary coil is arranged not to interlink with a magnetic flux that interlinks with a power receiving coil that is arranged to face the power feeding coil during power feeding. An axial direction of the auxiliary coil is nonparallel to an opposing direction of the power feeding coil and the power receiving coil. A direction of circulation of a magnetic flux generated by the auxiliary coil is opposite to a direction of circulation of a magnetic flux generated by the power feeding coil.
Public/Granted literature
- US20150145339A1 POWER FEEDING COIL UNIT AND WIRELESS POWER TRANSMISSION DEVICE Public/Granted day:2015-05-28
Information query
