Title:
POWER TRANSMISSION DEVICE AND POWER RECEPTION DEVICE
Document Type and Number:
Japanese Patent JP2017034195
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power transmission device and a power reception device that are able to restrict a coupling coefficient from changing significantly even if a vertical distance between the power transmission coil and the power reception coil changes.SOLUTION: A power transmission device 3 comprises a power transmission coil 12 formed so as to surround the periphery of a wind shaft O1 extending vertically and having a hollow part 31 in the center thereof; a ferrite 15 on the upper face of which the transmission coil 12 is arranged and which has an opening 32 located in the hollow part 31 of the power transmission coil 12 when viewed from above; and a top plate part 25 made of metal, which is located in the hollow part 31 and opening 32 as viewed from above the power transmission coil 12 and ferrite 15.SELECTED DRAWING: Figure 4
Inventors:
YUASA HIROAKI
KIBUDERA NORIHIRO
KIBUDERA NORIHIRO
Application Number:
JP2015155439A
Publication Date:
February 09, 2017
Filing Date:
August 05, 2015
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
H01F38/14; H02J50/00
Domestic Patent References:
| JP2012217228A | 2012-11-08 | |||
| JP2015002440A | 2015-01-05 | |||
| JP2014179543A | 2014-09-25 | |||
| JP2014204104A | 2014-10-27 | |||
| JP2012134307A | 2012-07-12 | |||
| JP2013172503A | 2013-09-02 | |||
| JP2016134512A | 2016-07-25 | |||
| JP6131915B2 | 2017-05-24 |
Foreign References:
| WO2011096569A1 | 2011-08-11 |
Attorney, Agent or Firm:
Fukami patent office