POWER REGENERATION DEVICE, METHOD OF REGENERATING POWER, POWER STORAGE SYSTEM, METHOD OF STORING POWER, AND HIGH FREQUENCY DEVICE

• US 20120218799A1
• Filed: 10/27/2010
• Published: 08/30/2012
• Est. Priority Date: 10/29/2009
• Status: Active Application

• Current Assignee: Nihon Dengyo Kosaku Co., Ltd.
• Original Assignee: Nihon Dengyo Kosaku Co., Ltd.
• Inventors: Furukawa, Minoru, Shirato, Tadashi
• Granted Patent: US 8,885,369 B2
• Time in Patent Office: Days
• US Class Current: 363/126
• 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 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H02J 50/27 characterised by the type of receiving antennas, e.g. rectennas
• CPC Class Codes: H02J 50/402 the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
• CPC Class Codes: H05B 6/705 using microwave tuning
• CPC Class Codes: H05B 6/72 Radiators or antennas
• CPC Class Codes: H05B 6/74 Mode transformers or mode stirrers
• CPC Class Codes: H05B 6/80 Apparatus for specific applications stoves or ranges F24C7/02

Abstract

A power regeneration device includes an extraction unit and a high frequency-to-DC converter. The extraction unit is provided on a transmission path. The transmission path is provided for transmitting a high-frequency wave from a high-frequency wave source to a high-frequency load. The extraction unit extracts a reflected high-frequency wave generated by reflecting the high-frequency wave from the high-frequency load. The high frequency-to-DC converter converts the reflected high-frequency wave extracted by the extraction unit into DC power.

Claims

1. A power regeneration device, comprising:

an extraction unit provided on a transmission path, the transmission path being provided for transmitting a high-frequency wave from a high-frequency wave source to a high-frequency load, the extraction unit extracting a reflected high-frequency wave generated by reflecting the high-frequency wave from the high-frequency load; and

a high frequency-to-DC converter for converting the reflected high-frequency wave extracted by the extraction unit into DC power.

2. The power regeneration device according to claim 1, further comprising a branching unit that branches and outputs the reflected high-frequency wave extracted by the extraction unit.

3. The power regeneration device according to claim 1, wherein the high frequency-to-DC converter includes:

an antenna unit for receiving the reflected high-frequency wave and outputting AC power corresponding to the received reflected high-frequency wave; and

a rectifying unit for rectifying the AC power outputted from the antenna unit.

4. The power regeneration device according to claim 3, wherein the high frequency-to-DC converter includes:

a plurality of antenna units; and

a reflected high-frequency wave transmission path for transmitting the reflected high-frequency wave,

wherein the plurality of antenna units is distributed and arranged such that the reflected high-frequency wave transmitted through the reflected high-frequency wave transmission path is received by each of the antenna units.

5. The power regeneration device according to claim 4, wherein the reflected high-frequency wave transmission path includes a radial waveguide.

6. The power regeneration device according to claim 1, wherein the high frequency-to-DC converter includes a vacuum tube for converting the reflected high-frequency wave into DC power.

7. The power regeneration device according to claim 1, wherein the extraction unit includes a circulator having a first port to which the high-frequency wave generated by the high-frequency wave source is inputted, a second port from which the inputted high-frequency wave is outputted to the high-frequency load and to which the reflected high-frequency wave is inputted, and a third port from which the inputted reflected high-frequency wave is outputted.

8. The power regeneration device according to claim 1, further comprising a voltage control unit for controlling a voltage of the DC power outputted from the high frequency-to-DC converter to a predetermined voltage and outputs the power.

9. A power storage system, comprising:

the power regeneration device according to claim 1; and

a power storage unit for storing the DC power outputted from the power regeneration device.

10. A high frequency device, comprising:

a high-frequency wave source;

a high-frequency load;

a transmission path for transmitting a high-frequency wave from the high-frequency wave source to the high-frequency load; and

the power regeneration device according to claim 1, provided on the transmission path.

11. The high frequency device according to claim 10, wherein the high-frequency load is a heating chamber for high-frequency heating.

12. The high frequency device according to claim 10, wherein the high-frequency load is an antenna for receiving and transmitting a high-frequency signal wave.

13. A method of regenerating power, comprising:

an extracting step of extracting a reflected high-frequency wave on a transmission path, the transmission path being provided for transmitting a high-frequency wave from a high-frequency wave source to a high-frequency load, the reflected high-frequency wave being generated by reflecting the high-frequency wave from the high-frequency load; and

a high frequency-to-DC converting step of converting the extracted reflected high-frequency wave into DC power.

14. The method of regenerating power according to claim 13, further comprising a branching step of branching the extracted reflected high-frequency wave, wherein

in the high frequency-to-DC converting step, the branched reflected high-frequency wave is converted into the DC power.

15. The method of regenerating power according to claim 13, wherein

the high frequency-to-DC converting step includes:

a receiving step of receiving the reflected high-frequency wave and outputting AC power corresponding to the received reflected high-frequency wave; and

a rectifying step of rectifying the outputted AC power.

16. The method of regenerating power according to claim 15, wherein, in the receiving step, the extracted reflected high-frequency wave is received by a plurality of antennas distributed and arranged on a reflected high-frequency wave transmission path while the extracted reflected high-frequency wave is transmitted through the reflected high-frequency wave transmission path.

17. The method of regenerating power according to claim 16, wherein, in the receiving step, the reflected high-frequency wave transmission path including a radial waveguide is used.

18. The method of regenerating power according to claim 13, further comprising a voltage controlling step of controlling a voltage of the DC power outputted in the high frequency-to-DC converting step to a predetermined voltage and outputting the power.

19. A method of storing power, comprising storing the DC power regenerated by the method of regenerating power according to claim 14.