Title:
ワイヤレス電力伝送システム
Document Type and Number:
Japanese Patent JP6583037
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a wireless power transmission system which enables the efficient charging action by improving the response of a charging action of a charging part in charge during travel.SOLUTION: A wireless power supply device 100 comprises: a power-feeding coil 131 operable to generate a first magnetic field; and an auxiliary power-feeding coil 141 operable to generate a second magnetic field. A wireless power reception device 200 comprises: a power reception inductor 211 operable to receive a power through the first or second magnetic field; a rectification part 240 connected with the power reception inductor 211; and a charging part 250 connected with the rectification part 240, and charging a power-storage part 320 mounted on a movable body 500. The power-feeding coil 131 and the auxiliary power-feeding coil 141 are disposed in the order of the auxiliary power-feeding coil 141 and the power-feeding coil 131 from a side closer to the movable body along a progressive direction of the movable body 500. The intensity of the second magnetic field is smaller than that of the first magnetic field. The charging part 250 accepts a power received through the second magnetic field and starts the activation before accepting a power received through the first magnetic field.SELECTED DRAWING: Figure 1
Inventors:
Noriyuki Fukushima
Masahide Onishi
Saen Tsunehiro
Masahide Onishi
Saen Tsunehiro
Application Number:
JP2016027152A
Publication Date:
October 02, 2019
Filing Date:
February 16, 2016
Export Citation:
Assignee:
tdk Corporation
International Classes:
H02J50/40; B60L5/00; B60L53/12; B60M7/00; H02J7/00; H02J50/10; H02J50/70
Domestic Patent References:
| JP2011160505A | ||||
| JP2011166992A | ||||
| JP2011200052A | ||||
| JP2011205749A | ||||
| JP2012143131A | ||||
| JP2012200032A | ||||
| JP2014082805A | ||||
| JP2014204654A | ||||
| JP2015073380A | ||||
| JP2015159649A | ||||
| JP2016119756A |
Foreign References:
| US20120326522 | ||||
| US20130098723 |