INDUCTIIVE POWER SUPPLY SYSTEM

• US 20130093259A1
• Filed: 06/15/2011
• Published: 04/18/2013
• Est. Priority Date: 07/02/2010
• Status: Active Grant

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Bremer, Petrus Johannes, Hontele, Bertrand Johan Edward, Houtepen, Robert Cornelis, Vrehen, Joris Jan, Hente, Dirk, Van Gorkom, Ramon Rascal, Jacobs, Joseph Hendrik Anna Maria, Ferrari, Elena Tiziana
• Granted Patent: US 9,147,523 B2
• Time in Patent Office: Days
• US Class Current: 307/104
• CPC Class Codes: B60L 53/122 Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
• CPC Class Codes: B60L 53/126 Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
• CPC Class Codes: B60L 53/30 Constructional details of charging stations
• CPC Class Codes: B60L 53/305 Communication interfaces
• CPC Class Codes: B60L 53/38 specially adapted for charging by inductive energy transfer
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/402 the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles

Abstract

A power supplying device (20) is provided for providing electrical power to a power receiving device (30), the power supplying device (20) comprising two plates (22), two electrode structures (23, 43, 81, 82) being arranged to be coupled to an AC power source (41) and at least one power transmitter (21). Each electrode structure (23, 43, 81, 82) is attached to one of said two plates (22). The power transmitter (21) is situated in between the two plates (22) and comprises an electrically conductive coil (28) and at least two electrical contacts (25) coupled to the electrically conductive coil (28). The plates (22) and the power transmitter (21) are arranged such that the power transmitter (21) is movable in a direction parallel to the surfaces of the plates (22) with the electrical contacts (25) in contact with the respective two electrode structures (23, 43, 81, 82) for obtaining power from the AC power source (41).

Claims

1. A power supplying device for providing electrical power to a power receiving device, the power supplying device comprising:

two plates, and

at least one power transmitter situated in between the two plates and comprising an electrically conductive coil, the plates and the power transmitter being arranged such that the power transmitter is movable in a direction parallel to the surfaces of the plates, wherein two electrode structures are arranged to be coupled to an AC power source, each electrode structure being attached to one of said two plates, at least two electrical contacts being coupled to the electrically conductive coil, the electrical contacts being in contact with the respective two electrode structures for obtaining power from the AC power source.

2. A power supplying device according to claim 1, wherein each one of the two plates comprises a respective one of the two electrode structures, said two electrode structures facing each other.

3. A power supplying device according to claim 1, wherein both electrode structures are attached to the same one of the two plates, the two electrode structures being electrically separated.

4. A power supplying device according to claim 1, wherein the power transmitter further comprises a ferromagnetic material.

5. A power supplying device according to claim 1, wherein the electrical contacts are spring loaded contacts.

6. A power supplying device according to claim 1, wherein the electrical contacts are sliding contact or rolling contacts.

7. A power supplying device according to claim 1, wherein at least one of the plates is at least partially transparent.

8. A power supplying device according to claim 7, wherein at least one of the electrode structures comprises an at least partially transparent conductive material.

9. A power supplying device according to claim 1, wherein at least one of the electrode structures is at least partially slotted for eddy current reduction.

10. A power supplying device according to claim 1, wherein at least one of the plates comprises a transmitter position indicator for indicating a position of the power transmitter relative to said at least one of the plates.

11-12. -12. (canceled)