Wireless charging set

• US 9,337,691 B2
• Filed: 03/22/2011
• Issued: 05/10/2016
• Est. Priority Date: 03/31/2010
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Yun Kwon, Ryu, Young Ho, Park, Eun Seok, Kwon, Sang Wook, Hong, Young Tack, Kim, Nam Yun, Kim, Dong Zo, Choi, Jin Sung
• Primary Examiner(s): Fantu, Yalkew
• Application Number:
  US13/053,542
• Publication Number:
  US 20110241612A1
• Time in Patent Office: 1,876 Days
• Field of Search: 320/107, 320/108, 348/53, 455/509, 455/45.1
• US Class Current: 1/1
• CPC Class Codes: H02J 50/005 Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields

Abstract

Provided is a wireless recharging set. A source unit including a source resonator may transmit power wirelessly in all directions, and a device may receive the transmitted wireless power regardless of location.

Claims

1. A wireless charging set comprising:

a source unit configured to be flexible and comprising a source resonator configured to transmit power wirelessly; and

a device comprising a target resonator matched with the transmitted wireless power, wherein the target resonator is configured to receive the wireless power from the source unit and to charge a power load using the received wireless power,

wherein the source unit is flexibly wrapped around a bar, and

wherein the source unit is configured to transmit power wirelessly in an omni-directional fashion.

2. The wireless charging set of claim 1, wherein the bar has a pillar shape, and the source unit is disposed around the bar, and the device is located around the bar.

3. The wireless charging set of claim 1, wherein the source unit is disposed in a charging platform of the device.

4. The wireless charging set of claim 1, wherein the source unit is disposed in a bar in a pillar shape and a charging platform of the device.

5. The wireless charging set of claim 1, wherein, when a plurality of devices are to be charged, the plurality of devices are simultaneously charged by the source unit.

6. The wireless charging set of claim 1, wherein the device comprises target resonators, and the target resonators are disposed perpendicular to each other.

7. The wireless charging set of claim 1, the device comprises target resonators, and the target resonators simultaneously receive the wireless power.

8. The wireless charging set of claim 1, wherein the source resonator is a thin film resonator.

9. The wireless charging set of claim 1, wherein the target resonator is wrapped with a film for waterproofing and shielding.

10. The wireless charging set of claim 1, wherein:

the device is three dimensional (3D) eyewear; and

the 3D eyewear includes a first target resonator disposed in a temple of the eyewear, and a second target resonator disposed in a bridge or a frame of the eyewear.

18. The wireless charging set of claim 1, wherein the source resonator is a MNG (mu negative) resonator, and wherein the MNG resonator comprises:

a capacitor; and

a matcher configured to adjust a magnetic field of the MNG resonator.

19. The wireless charging set of claim 18, wherein the matcher is configured to change, based upon a control signal generated by a controller, a distance between a conductor of the matcher and a ground conducting portion of the MNG resonator.

11. A flexible source unit for wirelessly transmitting power to a device, the source unit comprising:

a bar including an exterior surface; and

a source resonator configured to be flexible that is disposed on the exterior surface and to transmit power wirelessly to the device,

wherein the source unit is flexibly wrapped around the bar, and

wherein the source unit is configured to transmit power wirelessly in an omni-directional fashion.

12. The flexible source unit of claim 11, wherein the exterior surface of the bar comprises a cylindrical shape, and the source resonator is flexibly wrapped around the cylindrical shaped exterior surface.

13. The flexible source unit of claim 11, further comprising:

a platform from which the bar protrudes; and

at least another source resonator disposed on an exterior surface of the platform.

14. The flexible source unit of claim 11, further comprising a plurality of source resonators that are disposed in parallel to each other on the exterior surface.

15. The flexible source unit of claim 11, wherein the source resonator is configured to simultaneously transmit power wirelessly to a plurality of devices.

16. A device for receiving power wirelessly from a flexible source unit that comprises one or more source resonators attached to an exterior surface of the source unit, the device comprising:

a target resonator configured to receive power wirelessly from the one or more flexible source resonators of the source unit; and

a target unit configured to transfer the received power to drive the operation of the device,

wherein at least one of the source resonators is flexibly wrapped around a bar, and

wherein the source unit is configured to transmit power wirelessly in an omni-directional fashion.

17. The device of claim 16, further comprising a matching control configured to set an impedance matching frequency of the target resonator to perform impedance matching with the one or more flexible source resonators and the target resonator.