Resonance power receiving apparatus and method with wireless power transform function, and resonance device

• US 8,754,548 B2
• Filed: 04/04/2011
• Issued: 06/17/2014
• Est. Priority Date: 04/08/2010
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Hong, Young Tack, Kim, Nam Yun, Kwon, Sang Wook, Park, Eun Seok, Ryu, Young Ho
• Primary Examiner(s): DeBeradinis, Robert L.
• Application Number:
  US13/079,113
• Publication Number:
  US 20110248570A1
• Time in Patent Office: 1,170 Days
• Field of Search: 307/104
• US Class Current: 307/104
• CPC Class Codes: H01F 27/363 made of electrically conductive material
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• 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 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 7/00045 Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

Provided is a wireless power transmission system including a wireless power transmission function. The wireless power transmission system may be included in a set-up box and may include a source unit that transmits a resonance power to a resonance power receiving apparatus. A target resonance unit that receives the resonance power may be included in the resonance power receiving apparatus.

Claims

1. A wireless power transmission system, the system comprising:

a set-up box comprising a source resonance unit configured to transmit a resonance power to a resonance power receiving apparatus;

the resonance power receiving apparatus, comprising a target resonance unit configured to receive the resonance power; and

a shielding unit configured to focus, on the target resonance unit, a magnetic field emitted in an omni-direction by the source resonance unit.

2. The system of claim 1, wherein the source resonance unit is included in a top of the set-up box, the source resonance unit comprising a source resonator and a shielding film configured to prevent current offsetting between the source resonator and a substrate.

3. The system of claim 2, wherein the source resonance unit comprises:

a transmission line unit comprising multiple transmission line sheets arranged in parallel; and

a capacitor configured to be inserted in a predetermined location of the transmission line unit.

4. The system of claim 1, wherein the target resonance unit is included in a bottom of the resonance power receiving apparatus, the target resonance unit configured to operate with a same resonance frequency as the source resonance unit.

5. The system of claim 4, wherein the target resonance unit comprises:

a transmission line unit comprising multiple transmission line sheets arranged in parallel; and

a capacitor configured to be inserted in a predetermined location of the transmission line unit.

6. The system of claim 1, wherein the shielding unit comprises:

a metal housing; and

a near-field focusing unit included in the metal housing, the near-field focusing unit comprising a high impedance surface (HIS).

7. The system of claim 6, wherein the near-field focusing unit is configured to enable a magnetic field of the source resonance unit to be in-phase.

8. The system of claim 6, wherein the near-field focusing unit comprises first and second side focusing units to control a direction of magnetic fields emitted to the sides of the source resonance unit, a rear focusing unit to control a direction of magnetic fields emitted to the rear of the source resonance unit, and a supporting unit to support the source resonance unit.

9. The system of claim 1, wherein the source resonance unit is further configured to transmit the resonance power, based on a resonance frequency in a band of 2 MHz to 20 MHz.

10. The system of claim 1, wherein the source resonance unit and the target resonance unit are further configured to:

perform communication, based on a frequency in a band of 2 MHz to 20 MHz; and

perform transmission and reception of data at less than or equal to 1 Mbps.

11. The system of claim 1, wherein the source resonance unit and the target resonance unit are further configured to transmit and receive data to:

authenticate an ID of the resonance power receiving apparatus; and

check a charge level.

12. The system of claim 1, wherein:

the source resonance unit is further configured to sense multiple resonance power receiving apparatuses to be charged; and

each of the multiple resonance power receiving apparatuses to be charged is further configured to receive the resonance power from the source resonance unit through magnetic-coupling.

13. The system of claim 1, wherein the resonance power receiving apparatus comprises a laptop computer.

14. A method for a wireless power transmission system, the method comprising:

transmitting, by a source resonance unit in a set-up box, a resonance power to a resonance power receiving apparatus;

receiving, by a target resonance unit in the resonance power receiving apparatus, the resonance power; and

focusing on the target resonance unit, by a shielding unit, a magnetic field emitted in an omni-direction by the source resonance unit.

15. The method of claim 14, further comprising:

preventing, by the source resonance unit comprising a source resonator and a shielding film, current offsetting between the source resonator and a substrate,

wherein the source resonance unit is included in a top of the set-up box.

16. The method of claim 14, further comprising:

operating the target resonance unit with a same resonance frequency as the source resonance unit,

wherein the target resonance unit is included in a bottom of the set-up box.

17. The method of claim 14, wherein the shielding unit comprises:

a metal housing; and

a near-field focusing unit included in the metal housing, the near-field focusing unit comprising a high impedance surface (HIS).

18. The method of claim 17, further comprising enabling, by the near-field focusing unit, a magnetic field of the source resonance unit to be in-phase.

19. The method of claim 14, further comprising transmitting the resonance power, by the source resonance unit, based on a resonance frequency in a band of 2 MHz to 20 MHz.

20. The method of claim 14, further comprising:

performing, by the source resonance unit and the target resonance unit, communication, based on a frequency in a band of 2 MHz to 20 MHz; and

performing, by the source resonance unit and the target resonance unit, transmission and reception of data at less than or equal to 1 Mbps.

21. The method of claim 14, further comprising:

transmitting and receiving data, by the source resonance unit and the target resonance unit, to;

authenticate an ID of the resonance power receiving apparatus; and

check a charge level.

22. The method of claim 14, further comprising:

sensing, by the source resonance unit, multiple resonance power receiving apparatuses to be charged; and

receiving, by each of the multiple resonance power receiving apparatuses to be charged, the resonance power from the source resonance unit through magnetic-coupling.

23. The system of claim 14, wherein the resonance power receiving apparatus comprises a laptop computer.

24. A resonance device for a wireless power transmission system, the resonance device comprising:

a transmission line comprising;

a first signal conducting portion;

a second signal conducting portion;

and a ground conducting portion;

a capacitor configured to be inserted in a predetermined location of the transmission line;

first and second conductors respectively electrically connected to the a first and second signal conducting portions; and

a matcher electrically connected to the ground conducting portion, the matcher comprising a third conductor.

25. The resonance device of claim 24, wherein the transmission line unit further comprises multiple transmission line sheets arranged in parallel.

26. The resonance device of claim 24, further comprising a connector configured to receive or transmit a current.

27. A wireless power unit, the wireless power unit comprising:

resonance device comprising;

a transmission line comprising;

a first signal conducting portion;

a second signal conducting portion; and

a ground conducting portion;

a capacitor configured to be inserted in a predetermined location of the transmission line;

first and second conductors respectively electrically connected to the a first and second signal conducting portions; and

a matcher electrically connected to the ground conducting portion, the matcher comprising a third conductor.

28. The wireless power unit of claim 27, wherein the transmission line unit further comprises multiple transmission line sheets arranged in parallel.

29. The wireless power unit of claim 27, further comprising a connector configured to receive or transmit a current.

30. The wireless power unit of claim 27, wherein the wireless power unit comprises one or more of:

a cellular phone, a personal digital assistant (PDA), a digital camera, a portable game console, and an MP3 player, a portable/personal multimedia player (PMP), a handheld e-book, a portable tablet and/or laptop computer, a global positioning system (GPS) navigation.

31. A wireless power system, the system comprising:

a set-up box comprising a source resonance unit configured to transmit a resonance power to a resonance power receiving apparatus; and

a shielding unit configured to focus, on a target resonance unit, a magnetic field emitted in an omni-direction by the source resonance unit.

32. The system of claim 31, wherein the source resonance unit is included in a top of the set-up box, the source resonance unit comprising a source resonator and a shielding film configured to prevent current offsetting between the source resonator and a substrate.

33. The system of claim 32, wherein the source resonance unit comprises:

a transmission line unit comprising multiple transmission line sheets arranged in parallel; and

a capacitor configured to be inserted in a predetermined location of the transmission line unit.

34. The system of claim 31, wherein the shielding unit comprises:

a metal housing; and

a near-field focusing unit included in the metal housing, the near-field focusing unit comprising a high impedance surface (HIS).

35. The system of claim 34, wherein the near-field focusing unit is configured to enable a magnetic field of the source resonance unit to be in-phase.

36. The system of claim 31, wherein the source resonance unit is further configured to transmit the resonance power, based on a resonance frequency in a band of 2 MHz to 20 MHz.

37. The system of claim 31, wherein the source resonance unit is further configured to:

perform communication, based on a frequency in a band of 2 MHz to 20 MHz; and

perform transmission of data at less than or equal to 1 Mbps.

38. The system of claim 31, wherein the source resonance unit is further configured to transmit and receive data to:

authenticate an ID of the resonance power receiving apparatus; and

check a charge level.

39. The system of claim 31, wherein:

the source resonance unit is further configured to sense multiple resonance power receiving apparatuses to be charged; and

resonance power is transmitted from the source resonance unit through magnetic-coupling.

40. A wireless power system, the system comprising:

a resonance power receiving apparatus including a target resonance unit, the target resonance unit comprising;

a transmission line unit comprising multiple transmission line sheets arranged in parallel; and

a capacitor configured to be inserted in a predetermined location of the transmission line unit,

the target resonance unit being configured to receive a resonance power from a source resonance unit and operate with a same resonance frequency as the source resonance unit, wherein the target resonance unit is included in a bottom of the resonance power receiving apparatus.

41. The system of claim 40, wherein the target resonance unit is further configured to:

perform communication, based on a frequency in a band of 2 MHz to 20 MHz; and

perform transmission and reception of data at less than or equal to 1 Mbps.

42. The system of claim 40, wherein the target resonance unit is further configured to transmit and receive data to:

authenticate an ID of the resonance power receiving apparatus; and

check a charge level.

43. The system of claim 40, further comprising:

a plurality of resonance power receiving apparatuses to be charged,

wherein each of the plurality of resonance power receiving apparatuses to be charged is further configured to receive the resonance power from the source resonance unit through magnetic-coupling.