Apparatus for transmitting/receiving energy using a resonance structure in an energy system

• US 9,054,745 B2
• Filed: 12/21/2011
• Issued: 06/09/2015
• Est. Priority Date: 12/22/2010
• Status: Expired due to Fees

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Moon, Jung-Ick, Yun, Je-Hoon, Cho, In-Kui, Kim, Seong-Min
• Primary Examiner(s): Barnie, Rexford
• Assistant Examiner(s): SHIAO, DAVID A
• Application Number:
  US13/333,107
• Publication Number:
  US 20120161540A1
• Time in Patent Office: 1,266 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H01F 2038/146 in combination with capacitive coupling
• CPC Class Codes: H02J 50/05 using capacitive coupling
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H04B 5/22 Capacitive coupling
• CPC Class Codes: H04B 5/24 Inductive coupling
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

Disclosed is an energy transmitting apparatus in an energy system, including: a transmit feeding cable configured to be applied with AC power; a transmit inductor in which AC current for an AP power supply flows; a transmit metal electrode configured to transmit the AC power to a receive metal electrode by the AC current flowing the transmit inductor; and a transmit grounding bar configured to control at least one of a position, a length, and a diameter thereof to control a resonance frequency generated by the transmit inductor.

Claims

1. An energy transmitting apparatus in an energy system, comprising:

a transmit feeding cable configured to be applied with AC power;

a transmit inductor in which AC current for an AC power supply flows;

a transmit metal electrode configured to transmit the AC power wirelessly to a receive metal electrode by the AC current flowing through the transmit inductor;

a transmit cavity formed outside of the transmit inductor; and

a transmit grounding bar configured to control a resonance frequency generated by the transmit inductor based on at least one of a position, a length, and a diameter of the transmit grounding bar,

wherein the transmit grounding bar directly connects to at least one of the transmit metal electrode and the transmit cavity.

2. The energy transmitting apparatus of claim 1, wherein the length of the transmit grounding bar is controlled to have an increased length so as to reduce a magnitude of the resonance frequency and is controlled to have a reduced length so as to increase the magnitude of the resonance frequency.

3. The energy transmitting apparatus of claim 1, wherein the transmit cavity at least partially encloses the transmit inductor.

4. The energy transmitting apparatus of claim 1, wherein the transmit inductor includes a transmit coil in which the AC current flows and a transmit core around which the transmit coil is wound, and

the transmit grounding bar is spaced apart from the transmit core.

5. The energy transmitting apparatus of claim 1, wherein the transmit inductor includes a transmit coil in which the AC current flows and a transmit core around which the transmit coil is wound, and

the transmit grounding bar is controlled so as to be at least partially disposed in the transmit core.

6. The energy transmitting apparatus of claim 5, wherein the transmit core is connected with the transmit metal electrode, and

the transmit coil is inserted into the transmit metal electrode.

7. The energy transmitting apparatus of claim 5, wherein the transmit core is spaced apart from the transmit metal electrode, and

the transmit coil is connected with the transmit metal electrode.

8. The energy transmitting apparatus of claim 1, wherein the transmit metal electrode is disposed at a distance from the receive metal electrode corresponding to the transmit metal electrode, and

wherein the distance creates a void having a predetermined interval for controlling the resonance frequency.

9. The energy transmitting apparatus of claim 8, further comprising a dielectric material disposed in the void and having a predetermined dielectric constant for controlling the resonance frequency.

10. An energy receiving apparatus in an energy system, comprising:

a receive metal electrode configured to be applied with AC power;

a receive inductor in which AC current for an AC power supply flows;

a receive feeding cable configured to output the AC power by the AC current flowing through the receive inductor;

a receive cavity formed outside of the receive inductor; and

a receive grounding bar configured to control a resonance frequency generated by the receive inductor based on at least one of a position, a length, and a diameter of the receive grounding bar,

wherein the receive grounding bar directly connects to at least one of the receive metal electrode and the receive cavity.

11. The energy receiving apparatus of claim 10, wherein the length of the receive grounding bar is controlled to have an increased length so as to reduce a magnitude of the resonance frequency and is controlled to have a reduced length so as to increase the magnitude of the resonance frequency.

12. The energy receiving apparatus of claim 10, wherein the receive cavity least partially encloses the receive inductor.

13. The energy receiving apparatus of claim 10, wherein the receive inductor includes a receive coil in which the AC current flows and a receive core around which the receive coil is wound, and

the receive grounding bar is spaced apart from the receive core.

14. The energy receiving apparatus of claim 10, wherein the receive inductor includes a receive coil in which the AC current flows and a receive core around which the receive coil is wound, and

the receive grounding bar is controlled so as to be at least partially disposed in the receive core.

15. The energy receiving apparatus of claim 14, wherein the receive core is spaced apart from the receive metal electrode, and

the receive coil is inserted into the receive metal electrode.

16. The energy receiving apparatus of claim 14, wherein the receive core is connected with the receive metal electrode, and

the receive coil is connected with the receive metal electrode.

17. The energy receiving apparatus of claim 10, wherein the receive metal electrode is disposed at a distance from a transmit metal electrode corresponding to the receive metal electrode, and

wherein the distance creates a void having a predetermined interval for controlling the resonance frequency.

18. The energy receiving apparatus of claim 17, further comprising a dielectric material disposed in the void and having a predetermined dielectric constant for controlling the resonance frequency.