LAMINATE SURFACE FOR WIRELESS CAPACITIVE POWER

• US 20140210279A1
• Filed: 08/02/2012
• Published: 07/31/2014
• Est. Priority Date: 08/16/2011
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Van Herpen, Maarten Marinus Johannes Wilhelmus, Liedenbaum, Coen Theodorus Hubertus Fransiscus, Willemsen, Oscar Hendrikus
• Application Number:
  US14/237,099
• Publication Number:
  US 20140210279A1
• Time in Patent Office: Days
• US Class Current: 307/109
• CPC Class Codes: H02J 50/05 using capacitive coupling
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H04B 5/22 Capacitive coupling
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: H05K 1/11 Printed elements for providing electric connections to or between printed circuits

Abstract

A laminate panel (201) for wireless capacitive power transfer includes a clear protective top layer (206), a photographic layer (205) under the protective top layer (206), a conductive layer (202) under the photographic layer (205), and an inner core layer (203) under the conductive layer (202). One or more conductive layers in the laminate panels form a pair of transmitter electrodes, which couple to a power driver (110).

Claims

1. A laminate panel for wireless capacitive power transfers, comprising:

a conductive layer;

a non-conductive top layer above the conductive layer (202);

an inner core layer under the conductive layer (202); and

an engagement mechanism for engaging another same laminate panel such that when the two said laminate panels are engaged by the engagement mechanism, the conductive layers of the two engaged panels are electrically connected to each other.

2. The laminate panel of claim 1, wherein the conductive layer is patterned to form at least a pair of transmitter electrodes.

4. The laminate panel of claim 1, further comprising a photographic layer between the non-conductive top layer and the conductive layer.

3. (canceled)

5. A system for transferring power wirelessly to a power receiving device, comprising:

a plurality of laminate panels;

wherein each of the plurality of laminate panels comprises;

a conductive layer;

a non-conductive top layer above the conductive layer;

an inner core layer (203) under the conductive layer; and

an engagement mechanism for engaging another same laminate panel such that when the two said laminate panels are engaged by the engagement mechanism, the conductive layers of the two engaged panels are electrically connected to each other;

wherein the conductive layers of a first and second of the plurality of laminate panels (501, 502) are electrically coupled to a power driver;

wherein a first and second receiver electrodes of the power receiving device are placed on the first and second panels respectively to form a first and second capacitive impedances;

wherein a power signal generated by the power driver is wirelessly transferred from the conductive layers of the first and second panels to the first and second of receiver electrodes to power a load in the power receiving device.

6. The system of claim 5, wherein the load is in series with an inductor in the power receiving device, wherein a frequency of the power signal substantially matches a series-resonance frequency of the inductor in the power receiving device and the first and second capacitive impedances.

7. The system of claim 5, wherein the conductive layers of the first and second panels couple with the power driver by connecting to two respective terminals of the power driver with conductive wires or connectors.

8. The system of claim 7, wherein resistance of the conductive layers to the power driver is less than 1 kΩ

.

9. The system of claim 5, wherein the conductive layers of the first and second panels capacitively couple with the power driver by placing a first and second driver electrodes of the power driver over the conductive layers of the first and second panels respectively.

10. The system of claim 9, wherein resistance of the conductive layers to the power driver is less than 1 kΩ

.

11. A system for transferring power wirelessly to a power receiving device, comprising:

a laminate panel;

wherein the laminate panel comprises;

a conductive layer;

a non-conductive top layer above the conductive layer;

an inner core layer under the conductive layer; and

an engagement mechanism for engaging another same laminate panel;

wherein the conductive layer is patterned to form at least a first and second transmitter electrodes that are electrically coupled to a power driver;

wherein when the two said laminate panels are engaged by the engagement mechanism, the respective transmitter electrodes of the two engaged panels are electrically connected to each other;

wherein a first and second receiver electrodes of the power receiving device are placed on the laminate panel over the first and second transmitter electrodes respectively to form a first and second capacitive impedances;

wherein a power signal generated by the power driver is wirelessly transferred from the first and second transmitter electrodes to the first and second of receiver electrodes to power a load in the power receiving device.

12. The system of claim 11, wherein the load is in series with an inductor in the power receiving device, wherein a frequency of the power signal substantially matches a series-resonance frequency of the inductor in the power receiving device and the first and second capacitive impedances.

13. The system of claim 11, wherein the first and second transmitter electrodes couple with the power driver by connecting to two respective terminals of the power driver with conductive wires or connectors.

14. The system of claim 13, wherein resistance of the transmitter electrodes to the power driver is less than 1 kΩ

.

15. The system of claim 11, wherein the first and second transmitter electrodes capacitively couple with the power driver by placing a first and second driver electrodes of the power driver over the first and second transmitter electrodes respectively.

16. The system of claim 15, wherein resistance of the transmitter electrodes to the power driver is less than 1 kΩ

.