Title:
INDUCTIVE CHARGING ARRANGEMENT FOR A VEHICLE BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/137669
Kind Code:
A1
Abstract:
The invention relates to an inductive charging arrangement for a vehicle battery, having a counter-coil arrangement comprising at least one primary coil arrangement (2, 2', 2") located outside the vehicle and at least one secondary coil arrangement (3, 3', 3") located inside the vehicle, wherein the primary coil arrangement (2, 2', 2") and the secondary coil arrangement (3, 3', 3") each have a coil and a magnetic core and if the vehicle is positioned accordingly and the primary coil arrangement (2, 2', 2") is fed by inductive coupling, electrical energy is transferred from the (2, 2', 2") primary coil arrangement to the secondary coil arrangement (3, 3', 3"), wherein the air gap is part of the transfer region and means are provided for minimising the air gap between the primary coil arrangement (2, 2', 2") and the secondary coil arrangement (3, 3', 3"). According to the invention, at least one container, which is reversibly deformable and which is or can be filled with a liquid of high magnetic conductivity, is arranged and configured in the region of the (2, 2', 2") primary coil arrangement and/or the region of the secondary coil arrangement (3, 3', 3") such that, as a result of pressurisation of the liquid of high magnetic conductivity, the container is deformed in the direction towards the other coil arrangement of the counter-coil arrangement and the deformable container and the liquid of high magnetic conductivity present therein are arranged such that the liquid of high magnetic conductivity is part of the transfer region between the primary coil arrangement (2, 2', 2") and the secondary coil arrangement (3, 3', 3") in such a way as to minimise the air gap, at least after deformation of the reversibly deformable container.
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Inventors:
ALBL SEBASTIAN (DE)
Application Number:
PCT/EP2018/081777
Publication Date:
July 18, 2019
Filing Date:
November 19, 2018
Export Citation:
Assignee:
AUDI AG (DE)
International Classes:
B60L53/12
Domestic Patent References:
| WO2014029439A1 | 2014-02-27 |
Foreign References:
| US20160013664A1 | 2016-01-14 | |||
| DE102011108386A1 | 2013-01-24 | |||
| US20160056664A1 | 2016-02-25 | |||
| DE102014015192A1 | 2015-04-23 | |||
| US20170080815A1 | 2017-03-23 | |||
| DE102014218217A1 | 2016-03-17 | |||
| DE102016203350A1 | 2017-09-07 |
Other References:
ARMIN DR. NETHE -: "Kraftverstärkende Wirkung von Ferrofluiden", 1 January 2001 (2001-01-01), XP055561430, Retrieved from the Internet
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