AN ACOUSTIC CEILING FOR A CAPACITIVE POWER TRANSFER SYSTEM

• US 20140197755A1
• Filed: 08/02/2012
• Published: 07/17/2014
• Est. Priority Date: 08/16/2011
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips N.V.
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Willemsen, Oscar Hendrikus, Van Den Biggelaar, Theodorus Johannes Petrus, Cennini, Giovanni
• Application Number:
  US14/238,853
• Publication Number:
  US 20140197755A1
• Time in Patent Office: Days
• US Class Current: 315/227.R
• CPC Class Codes: E04B 9/001 characterised by provisions for heat or sound insulation
• CPC Class Codes: E04B 9/045 being laminated
• CPC Class Codes: H02J 50/05 using capacitive coupling
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• 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: H05B 45/00 Circuit arrangements for operating light-emitting diodes [LED]
• CPC Class Codes: H05B 45/60 Circuit arrangements for operating LEDs comprising organic material, e.g. for operating organic light-emitting diodes [OLED] or polymer light-emitting diodes [PLED]
• CPC Class Codes: H05B 47/10 Controlling the light source

Abstract

An acoustic ceiling tile (200) operating as a capacitive power transfer sys tem comprises a first layer (231) comprising a non-conductive material; at least a pair of receiver electrodes (220, 221) of the capacitive power transfer system configured on a first side of the first layer; a foam layer (240) having a side substantially covered with the first layer; and a load (210) connected to an inductor (212) and to the pair of receiver electrodes, wherein the load and the inductor are configured in a chamber formed between the first layer and the foam layer, wherein a power signal generated by a power driver is wirelessly transferred from a pair of transmitter electrodes to the pair of receiver electrodes (220, 221)to power the load when a frequency of the power signal substantially matches a series-resonance frequency of the inductor and a capacitive impedance created between the pair of receiver electrodes and the pair of transmitter electrodes.

Claims

1. An acoustic ceiling tile operating as a capacitive power transfer system, comprising:

a first layer comprising a non-conductive material;

at least a pair of receiver electrodes of the capacitive power transfer system configured on a first side of the first layer;

a foam layer having a side substantially covered with the first layer; and

a load connected to an inductor and to the pair of receiver electrodes, wherein the load and the inductor are configured in a chamber formed between the first layer and the foam layer, wherein a power signal generated by a power driver is wirelessly transferred from a pair of transmitter electrodes to the pair of receiver electrodes to power the load when a frequency of the power signal substantially matches a series-resonance frequency of the inductor and a capacitive impedance created between the pair of receiver electrodes and the pair of transmitter electrodes.

2. The acoustic ceiling tile of claim 1, wherein:

the at least a pair of transmitter electrodes of the capacitive power transfer system are configured on a second side of the first layer, wherein the first and second sides of the first layer are opposite to each other; and

a second layer is configured to substantially cover a side of the foam layer opposite a side covered by the first layer.

3. The acoustic ceiling tile of claim 1, wherein the first layer constitutes a dielectric for forming a capacitive impedance between the at least a pair of transmitter electrodes and the at least a pair of receiver electrodes.

4. The acoustic ceiling tile of claim 1, wherein each of the pair of receiver electrodes and the pair of transmitter electrodes comprise conductive material.

5. The acoustic ceiling tile of claim 4, wherein the conductive material comprises at least one of a conductive paint, a conductive ink, and a conductive tape.

6. The acoustic ceiling tile of claim 1, wherein the power driver is connected to a suspension grid configured to suspend the acoustic ceiling tile to form a ceiling.

7. The acoustic ceiling tile of claim 6, wherein the pair of transmitter electrodes are rails of a suspension grid configured to suspend the tile and transfer the power signal from the rails of the suspension grid to the receiver electrodes of tiles configured on the suspension grid.

8. The acoustic ceiling tile of claim 2, wherein transmitter electrodes of a plurality of acoustic ceiling tiles are electrically coupled together using a conductive tape

9. The acoustic ceiling tile of claim 2, wherein the transmitter electrodes and receiver electrodes are separated by the second layer,

13. The illuminating acoustic ceiling tile of claim 1, wherein the lighting element is any one of a LED, a LED string, a lamp, and an organic light emitting diode (OLED) surface and the foam configured for acoustic reduction.

10. An illuminating acoustic ceiling tile operating as a capacitive power transfer system, comprising:

a first layer comprising a non-conductive material;

a second layer comprising the non-conductive material;

at least a pair of receiver electrodes of the capacitive power transfer system configured on a first side of the second layer;

a foam layer substantially covered on opposite sides with the first layer and second layer; and

a lighting element connected to an inductor and to the pair of receiver electrodes, wherein the lighting element and the inductor are configured in a chamber formed between the foam layer and first layer, wherein a power signal generated by a power driver is wirelessly transferred from a pair of transmitter electrodes to the pair of receiver electrodes to power the lighting element when a frequency of the power signal substantially matches a series-resonance frequency of the inductor and a capacitive impedance created between the pair of receiver electrodes and the pair of transmitter electrodes.

11. The illuminating acoustic ceiling tile of claim 10, wherein:

the at least a pair of transmitter electrodes of the capacitive power transfer system are configured on a second side of the second layer, wherein the first and the second sides of the second layer are opposite to each other.

12. The illuminating acoustic ceiling tile of claim 11, wherein at least the second layer constitutes a dielectric for the capacitive impedance, wherein the non-conductive material of the second layer is any one of transparent or semi-transparent material.

14. A method for manufacturing of an acoustic ceiling tile operating as a capacitive power transfer system, comprising:

forming a first layer from a non-conductive material;

forming a pair of receiver electrodes and a pair of transmitter electrodes on opposite sides of the first layer;

forming a foam layer;

forming a chamber between the foam layer and the first layer;

configuring at least a load and an inductor within the chamber formed between the foam layer and the first layer;

connecting the load in series to the inductor and to the pair of receiver electrodes;

forming a second layer; and

adhering the first and the second layers on opposite sides of the foam layer.