Roof type charging apparatus using resonant power transmission

• US 8,829,849 B2
• Filed: 08/15/2011
• Issued: 09/09/2014
• Est. Priority Date: 09/08/2010
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Dong Zo, Kwon, Sang Wook, Park, Yun Kwon, Park, Eun Seok, Hong, Young Tack, Ryu, Young Ho, Kim, Nam Yun, Choi, Jin Sung
• Primary Examiner(s): Muralidar, Richard V
• Assistant Examiner(s): DIBENEDETTO, MICHAEL N
• Application Number:
  US13/210,233
• Publication Number:
  US 20120056579A1
• Time in Patent Office: 1,121 Days
• Field of Search: 320/108, 320/114, 320/115, 340/854.6, 340/854.8, 340/855.8, 455/269, 455/270, 455/573
• US Class Current: 320/108
• 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 50/12 of the resonant type
• CPC Class Codes: H02J 50/50 using additional energy repeaters between transmitting devices and receiving devices
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H04B 5/26 using coils
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

Provided is a roof-type charging apparatus that charges multi-target device, while transmitting a resonance power. A roof-type charging apparatus using resonance power transmission includes a source resonance unit configured to transmit resonance power including a source resonator having a generally planar loop configuration and defining a space therein; a receiving unit configured to receive the resonance power transmitted from the source resonator; and a connecting unit configured to separate the source resonator and the receiving unit by a predetermined distance.

Claims

1. A roof-type charging apparatus using resonance power transmission, the apparatus comprising:

a source resonance unit included in a roof of the charging apparatus, the source resonance unit configured to transmit resonance power via a source resonator having a generally planar loop configuration and defining a space therein;

a receiving unit on which a target resonator is to be positioned to receive the resonance power transmitted from the source resonator;

a connecting unit configured to separate the source resonator and the receiving unit by a predetermined distance; and

a matching unit configured to match a coupling impedance of the source resonator and the target resonator that receives the resonance power transmission,

wherein the matching unit further controls the connecting unit to control a vertical distance between the roof of the apparatus and the receiving unit for coupling impedance matching between the source resonator and the target resonator.

2. The apparatus of claim 1, wherein the source resonator and the receiving unit are positioned generally parallel with respect to one another.

3. The apparatus of claim 1, wherein the source resonator is one of:

square-shaped, rectangular-shaped, circle-shaped, oval-shaped, elliptical-shaped, triangle-shaped, octagon-shaped and polygon-shaped.

4. The apparatus of claim 1, wherein the source resonator defines an effective charging radius of the source resonator as a minimal distance at which power transfer occurs.

5. The apparatus of claim 4, wherein a target resonator that receives the resonance power transmission is positioned inside the effective charging radius of the source resonator.

6. The apparatus of claim 1, further comprising:

an input power unit configured to generate a resonance power based on a resonance frequency, and to provide the resonance power to the source resonator.

7. The apparatus of claim 6, wherein the input power unit is located below the space defined by the source resonator.

8. The apparatus of claim 1, wherein, during resonance power transmission, the connecting unit controls the vertical distance between the roof of the apparatus and the receiving unit such that the source resonator is at least a ten centimeters (cm) above the target resonator during resonation.

9. The apparatus of claim 1, wherein the matching unit is positioned in the space defined by the source resonator.

10. The apparatus of claim 1, wherein the source resonance unit includes a frame configured to connect the source resonator to the connecting unit.

11. The apparatus of claim 1, further comprising:

a power converter configured to convert alternating current (AC) power of a voltage source to a direct current (DC) power.

12. The apparatus of claim 1, wherein the connecting unit comprises a hollow cylinder, and a cable passing through the inside of the hollow cylinder.

13. The apparatus of claim 12, wherein the hollow cylinder is formed of an insulative material.

14. The apparatus of claim 1, wherein the predetermined distance is adjustable thereby providing impedance matching between the source resonator and a target resonator that receives the resonance power transmission.

15. The apparatus of claim 1, wherein the source resonance unit includes an extension controller configured to adjust an effective charging radius of the source resonator defined as a minimal distance at which power transfer occurs.

16. The apparatus of claim 1, further comprising:

a supporting unit configured to support the apparatus.

17. A method of transmitting resonance power, the method comprising:

transmitting resonance power using a source resonator having a generally planar loop configuration defining a space therein, the source resonator being included in a roof of a wireless power transmission apparatus;

receiving by a target resonator positioned on a receiving unit the resonance power transmitted from the source resonator; and

adjusting a vertical distance between the roof of the apparatus and the receiving unit for coupling impedance matching between the source resonator and the target resonator.

18. The method of claim 17, wherein the source resonator is one of:

square-shaped, rectangular-shaped, circle-shaped, triangle-shaped, octagon-shaped and polygon-shaped.

19. The method of claim 17, wherein the source resonator defines an effective charging radius of the source resonator as a minimal distance at which power transfer occurs.

20. The method of claim 17, wherein a target resonator that receives the resonance power transmission is positioned inside an effective charging radius of the source resonator defined as a minimal distance at which power transfer occurs.

21. The method of claim 17, further comprising:

adjusting an effective charging radius of the source resonator.

22. A roof-type charging apparatus using resonance power transmission, the apparatus comprising:

a source resonance unit included in a roof of the charging apparatus, the source resonance unit configured to transmit resonance power via a source resonator having a generally planar loop configuration and defining a space therein;

a receiving unit on which a target resonator is to be positioned to receive the resonance power transmitted from the source resonator;

a matching unit located in a predetermined area of a frame of the source resonator and configured to match, to a predetermined value, a coupling impedance between the source resonator and the target resonator that receives the resonance power transmission;

an input power unit configured to generate resonance power based on a resonance frequency, and to provide the resonance power to the source resonator;

a connecting unit configured to separate the source resonator and the receiving unit by a predetermined distance; and

a supporting unit connected to the input power unit and configured to support the roof-type charging apparatus,

wherein the matching unit further controls the connecting unit to control a vertical distance between the roof of the apparatus and the receiving unit for coupling impedance matching between the source resonator and the target resonator.