PORTABLE WIRELESS POWER CHARGING SYSEM

• US 20160072338A1
• Filed: 09/08/2015
• Published: 03/10/2016
• 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.
• Granted Patent: US 10,063,107 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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, portable charger tray comprising:

an internal rechargeable power supply;

a first wireless power transmitter connected to the internal rechargeable power supply; and

a case housing the internal rechargeable power supply and the wireless power transmitter;

wherein the wireless power transmitter is configured to wirelessly transmit a first charging power to 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 charging receiver connected to the internal rechargeable power supply;

wherein the charging receiver is configured to be operatively coupled to an external power supply for transmission of a second charging power for recharging the internal rechargeable power supply.

5. The portable charger tray of claim 4, wherein the charging receiver comprises a wireless power receiver configured to wirelessly connect to a second wireless power transmitter of the external power supply for wireless transmission of the second charging power for recharging the internal rechargeable power supply.

6. The portable charger tray of claim 5, further comprising a coil housed in the case, the coil acting as a passive resonant repeater to transfer power from a transmitting antenna of the second wireless power transmitter of the external power supply to a receiving antenna of the one or more electronic devices.

7. 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.

8. 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.

9. The portable charger tray of claim 8, wherein the at least one power jack is a USB socket.

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

11. A wireless power charging system, comprising:

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

a recharging dock including a charging transmitter configured to be connected to a power supply, the charging transmitter operatively connecting 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.

12. The wireless power charging system of claim 11, wherein the internal rechargeable power supply is a battery, super capacitor or small fuel cell.

13. The wireless power charging system of claim 11, 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.

14. The wireless power charging system of claim 11,

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.

15. The wireless power charging system of claim 11,

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.

16. The wireless portable charger system of claim 15, wherein the portable charger tray further includes a coil housed in the case, the coil acting as a passive resonant repeater to transfer power from a transmitting antenna of the second wireless power transmitter of the recharging dock to a receiving antenna of the one or more electronic devices.

17. The wireless portable charger system of claim 11, 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.

18. The wireless portable charger system of claim 17, wherein the control means disables the portable charger tray when the portable charger tray is beyond the designated operational distance from the recharging dock.

19. The wireless portable charger system of claim 11, 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.

20. The wireless portable charger system of claim 11, wherein the portable charger tray further includes one or more power jacks operatively connected to the internal rechargeable power supply for supplying power.