WIRELESS POWER CHARGING DEVICE AND METHOD FOR MOBILE EQUIPMENT

• US 20140203773A1
• Filed: 03/26/2014
• Published: 07/24/2014
• Est. Priority Date: 10/11/2011
• Status: Active Grant

• Current Assignee: Optilo Company Limited
• Original Assignee: BNR Technology Co., Ltd.
• Inventors: KIM, Young-Hyun
• Granted Patent: US 9,350,195 B2
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H02J 50/50 using additional energy repeaters between transmitting devices and receiving devices
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

A wireless power charging device and method for mobile equipment is disclosed. The wireless power charging device for mobile equipment includes: a signal oscillating unit receiving power from a power supply unit and oscillating a signal; a power signal generating unit generating a power signal by resonating with a signal oscillated by the signal oscillating unit; and a charging unit storing the generated power signal and supplying power to the mobile equipment on the basis of the stored power signal.

Claims

1. A wireless power charging device comprising:

a signal oscillating unit receiving power from a power supply unit and oscillating a signal;

a power signal generating unit generating a power signal by resonating with a signal oscillated by the signal oscillating unit; and

a charging unit storing the generated power signal and supplying power to the mobile equipment on the basis of the stored power signal.

2. The wireless power charging device of claim 1, further comprising at least one relay unit disposed between the signal oscillating unit and the power signal generating unit and relaying a signal oscillated by the signal oscillating unit to the power signal generating unit.

3. The wireless power charging device of claim 1, wherein the power signal generating unit comprises:

a resonating unit generating a signal to resonate with a signal oscillated by the signal oscillating unit; and

a signal converting unit converting the signal generated by the resonating signal into the power signal.

4. The wireless power charging device of claim 2, wherein the signal oscillating unit comprises:

a circular antenna coil set to a diameter having a predetermined length; and

a capacitor connected to the antenna coil in series.

5. The wireless power charging device of claim 4, wherein the relay unit comprises a second antennal coil set to a length that is less than the diameter of the circular antenna coil.

6. The wireless power charging device of claim 5, wherein the circular antenna coil and the second antenna coil are installed to be parallel to each other.

7. A wireless power charging method comprising:

receiving power from a power supply unit and oscillating a signal;

generating a power signal by resonating with an oscillated signal; and

storing the generated power signal and supplying power to the mobile equipment on the basis of the stored power signal.

8. The wireless power charging method of claim 7, further comprising relaying a signal oscillated in the oscillating of the signal.

9. The wireless power charging method of claim 7, wherein the generating of the power signal comprises:

generating a signal to resonate with the oscillated signal; and

converting the generated, resonating signal into the power signal.

10. The wireless power charging method of claim 8, wherein the oscillating of the signal comprises oscillating power received from a power supply unit through a circular antenna coil set to a diameter having a predetermined length and a capacitor connected to the antenna coil in series.

11. The wireless power charging method of claim 10, wherein the relaying of the signal comprises relaying the oscillated signal through at least one, second antenna coil set to a length that is less than the diameter of the circular antenna coil.

12. The wireless power charging method of claim 11, wherein the circular antenna coil and the second antenna coil are installed to be parallel to each other.