WIRELESS POWER REPEATER

• US 20140292100A1
• Filed: 08/10/2012
• Published: 10/02/2014
• Est. Priority Date: 09/09/2011
• Status: Active Grant

• Current Assignee: Nera Innovations Limited (Atlantic IP Services Limited)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: Lee, Jung Oh, Jung, Woo Kil
• Granted Patent: US 9,866,278 B2
• Time in Patent Office: Days
• US Class Current: 307/104
• 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: H04B 5/79 for data transfer in combination with power transfer

Abstract

Disclosed is a wireless power repeater. The wireless power repeater repeats power between a wireless power transmitter and an electronic device. The wireless power repeater includes a charging container having at least one side, wherein the charging container has a form for receiving the electronic device, a repeating coil placed at one of the at least one side of the charging container to repeat the power between the wireless power transmitter and the electronic device using resonance.

Claims

1-24. -24. (canceled)

25. A wireless power transmission system, comprising:

a power supply apparatus;

a wireless power transmitter; and

a wireless power repeater,

wherein the wireless power repeater repeats power between the wireless power transmitter and an electronic device,

wherein the wireless power repeater comprises;

a charging container having a bottom and at least one side, wherein the charging container is configured to receive one or more electronic devices; and

a first repeating coil disposed at a side of the charging container to repeat the power between the wireless power transmitter and an electronic device by using resonance,

wherein the wireless power transmitter is disposed at the bottom of the container to transmit power to an electronic device positioned on the wireless power transmitter.

26. The wireless power transmission system of claim 25, wherein the wireless power repeater is configured to transmit power to an electronic device positioned at a place to which the wireless power transmitter cannot transmit power.

27. The wireless power transmission system of claim 25, wherein the first repeating coil has a solenoid form or a spiral form.

28. The wireless power transmission system of claim 27, wherein the first repeating coil comprises a conduction line wound repeatedly to have the solenoid form or the spiral form.

29. The wireless power transmission system of claim 25, wherein the charging container comprises a printed circuit board (PCB).

30. The wireless power transmission system of claim 25, wherein the charging container has a box shape or a cylindrical shape.

31. The wireless power transmission system of claim 25, wherein the first repeating coil transmits the power, which has been received therein from the wireless power transmitter, to an electronic device resonance-coupled with the first repeating coil.

32. The wireless power transmission system of claim 25, wherein the wireless power repeater further comprises a second repeating coil, wherein the charging container comprises at least two sides, wherein the first repeating coil is disposed at a first side of the charging container by repeatedly winding a first conduction line to have a spiral shape or a circular shape, and wherein the second repeating coil is disposed at a second side of the charging container by repeatedly winding a second conduction line to have a spiral shape or a circular shape.

33. The wireless power transmission system of claim 32, wherein the wireless power repeater operates the first and second repeating coils at a predetermined time interval.

34. The wireless power transmission system of claim 33, wherein the wireless power repeater alternately operates the first and second repeating coils at the predetermined time interval using a switch.

35. The wireless power transmission system of claim 25, wherein the first repeating coil comprises one conduction line wound along an outer portion of the charging container several times.

36. A wireless power repeater comprising:

a charging container having at least two sides, wherein the charging container is configured to receive an electronic device;

a first coil disposed at a first side of the charging container and comprising a first conduction line wound repeatedly;

a second coil disposed at a second side of the charging container and comprising a second conduction line wound repeatedly; and

a controller configured to enable current to flow through the first and second coils at a predetermined time interval.

37. The wireless power repeater of claim 36, wherein each coil has a spiral shape or a circular shape.

38. The wireless power repeater of claim 36, wherein the charging container has a box shape.

39. The wireless power repeater of claim 36, wherein each coil has a solenoid form or a spiral form.

40. The wireless power repeater of claim 36, wherein the charging container comprises a printed circuit board (PCB).

41. The wireless power repeater of claim 36, wherein the controller alternately operates the first and second coils using a switch.

42. The wireless power repeater of claim 36, further comprising a third coil, wherein the controller generates a magnetic field by alternately applying current to the first, second, and third coils at a predetermined time interval.

43. The wireless power repeater of claim 36, wherein each coil repeats the power between the wireless power transmitter and an electronic device by using resonance.

44. The wireless power repeater of claim 36, wherein the first coil is physically separated from the second coil.

45. The wireless power repeater of claim 42, wherein the first coil is physically separated from the second coil, the second coil is physically separated from the third coil, and first coil is physically separated from the third coil.