Portable wireless power charging system for a table with charging dock

• US 10,063,107 B2
• Filed: 09/08/2015
• Issued: 08/28/2018
• Est. Priority Date: 09/05/2014
• Status: Active Grant

• Current Assignee: Wiremold Co (Legrand SA)
• Original Assignee: Wiremold Co (Legrand SA)
• Inventors: Makwinski, Mark, Prestigomo, Phillip D.
• Primary Examiner(s): Henze-Gongola, David V
• Application Number:
  US14/847,399
• Publication Number:
  US 20160072338A1
• Time in Patent Office: 1,085 Days
• Field of Search: 320103, 320104, 320108, 307104
• CPC Class Codes: H02J 50/23 characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/0048 Detection of remaining charge capacity or state of charge [SOC]
• CPC Class Codes: H02J 7/02 for charging batteries from ac mains by converters
• CPC Class Codes: H02J 7/342 The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging with circuits for polarity protection H02J7/0034

Abstract

A portable charger tray includes an internal rechargeable power supply and a first wireless power transmitter connected to the internal rechargeable power supply for wirelessly charging a portable electronic device. A wireless power charging system includes the portable charger tray for wirelessly charging the portable electronic device and a dock for charging the internal rechargeable power supply of the portable charger tray.

Claims

1. A wireless power charging system, comprising:

a table with a tabletop;

a recharging dock integrated into the table top, the recharging dock including a charging transmitter connected to a power cord adapted to be connected to a power supply;

a portable charger tray including;

an internal rechargeable power supply;

a wireless power transmitter connected to the internal rechargeable power supply, the wireless power transmitter comprising a transmitting antenna;

a charging receiver connected to the internal rechargeable power supply;

a coil acting as a passive resonant repeater; and

a case housing the internal rechargeable power supply, the wireless power transmitter, the charging receiver and the coil;

wherein the transmitting antenna of the wireless power transmitter of the portable tray wirelessly transmits a first charging power from the internal rechargeable power supply of the portable tray to a receiving antenna of one or more electronic devices;

wherein the charging receiver of the portable tray is operatively connected to the charging transmitter of the recharging dock to transmit a second charging power for recharging the internal rechargeable power supply of the portable tray; and

wherein the coil of the portable tray transfers a third charging power from the charging transmitter of the recharging dock to the receiving antenna of the one or more electronic devices.

2. The portable charger tray of claim 1, wherein the internal rechargeable power supply is a battery, super capacitor or small fuel cell.

3. The portable charger tray of claim 1, wherein the internal rechargeable power supply is a modular unit detachably connected to the wireless power transmitter and removable from the case of the portable charger tray.

4. The portable charger tray of claim 1, further comprising a visual indicator for indicating a charge level of the internal rechargeable power supply, a charging status of the internal rechargeable power supply and/or a successful charging link to the one or more electronic devices.

5. The portable charger tray of claim 1, further comprising at least one power jack operatively connected to the internal rechargeable power supply for supplying power.

6. The portable charger tray of claim 5, wherein the at least one power jack is a USB socket.

7. The portable charger tray of claim 1, wherein the case of the portable charger tray is sealed with waterproof or weather resistant materials.

8. A wireless power charging system, comprising:

a table with a tabletop;

a recharging dock integrated into the table top, the recharging dock including a charging transmitter configured to be connected to a power supply, the charging transmitter comprising a second transmitting antenna;

a portable charger tray including;

an internal rechargeable power supply;

a first wireless power transmitter connected to the internal rechargeable power supply, the first wireless power transmitter comprising a first transmitting antenna;

a charging receiver connected to the internal rechargeable power supply, the charging receiver comprising a wireless power receiver;

a coil acting as a passive resonant repeater; and

a case housing the internal rechargeable power supply, the first wireless power transmitter, the charging receiver and the coil;

wherein the first transmitting antenna of the first wireless power transmitter wirelessly of the portable tray transmits a first charging power from the internal rechargeable power supply of the portable tray to a receiving antenna of one or more electronic devices; and

wherein the second transmitting antenna of the charging transmitter of the recharging dock wirelessly connects to the wireless power receiver of the charging receiver of the portable charger tray to transmit a second charging power for recharging the internal rechargeable power supply of the portable charger tray;

wherein the coil of the portable charger tray transfers a third charging power from the second transmitting antenna of the charging transmitter of the recharging dock connected to the power supply to the receiving antenna of the one or more electronic devices.

9. The wireless power charging system of claim 8, wherein the internal rechargeable power supply is a battery, super capacitor or small fuel cell.

10. The wireless power charging system of claim 8, wherein the internal rechargeable power supply is a modular unit detachably connected to the first wireless power transmitter and removable from the case of the portable charger tray.

11. The wireless portable charger system of claim 8, further comprising control means for determining whether the portable charger tray is within a designated operational distance from the recharging dock;

wherein the control means comprises at least one controller.

12. The wireless portable charger system of claim 11, wherein the control means disables the portable charger tray when the portable charger tray is beyond the designated operational distance from the recharging dock.

13. The wireless portable charger system of claim 8, wherein the portable charger tray further includes a visual indicator for indicating a charge level of the internal rechargeable power supply, a charging status of the internal rechargeable power supply and/or a successful charging link to the one or more electronic devices.

14. The wireless portable charger system of claim 8, wherein the portable charger tray further includes one or more power jacks operatively connected to the internal rechargeable power supply for supplying power.

15. A wireless power charging system, comprising:

a table with a tabletop;

a recharging dock integrated into the table top, the recharging dock including a charging transmitter connected to a power cord adapted to be connected to a power supply; and

a portable charger tray including an internal rechargeable power supply, a first wireless power transmitter connected to the internal rechargeable power supply, a charging receiver connected to the internal rechargeable power supply, and a case housing the internal rechargeable power supply, the first wireless power transmitter and the charging receiver;

wherein the first wireless power transmitter is configured to wirelessly transmit a first charging power to one or more electronic devices; and

wherein the charging transmitter of the recharging dock is operatively connected to the charging receiver of the portable charger tray to transmit a second charging power for recharging the internal rechargeable power supply of the portable charger tray; and

wherein the portable charger tray is nested in a recessed receptacle of the recharging dock to receive the second charging power.

16. The wireless power charging system of claim 15,

wherein the charging receiver of the portable charger tray includes a wireless power receiver;

wherein the charging transmitter of the recharging dock includes a second wireless power transmitter; and

wherein the second wireless power transmitter of the charging transmitter wirelessly connects with the wireless power receiver of the charging receiver to transmit the second charging power for recharging the internal rechargeable power supply of the portable charger tray.

17. The wireless power charging system of claim 15,

wherein the charging receiver of the portable charger tray includes first conductive contacts;

wherein the charging transmitter of the recharging dock includes second conductive contacts; and

wherein the first conductive contacts of the charging receiver contact the second conductive contacts of the charging transmitter to transmit the second charging power for recharging the internal rechargeable power supply of the portable charger tray.