Provided is an amplifying repeater to intensify and amplify a magnetic field of electromagnetic waves. Also provided is a wireless power conversion charging device using the magnetic field of electromagnetic waves, which is located between an electromagnetic wave generating source transmitter and a receiving coil or attached to a transmitter and a receiving coil. Accordingly, charging power for various electronic devices can be provided and power can be wirelessly supplied to various loads.
|
17. A wireless power transmitting system comprising:
a receiver comprising a first induction coil and, a first condenser connected to the first induction coil to construct a resonance circuit, a rectifying diode, and a battery; and
a repeater comprising a second induction coil and a second condenser connected to the second induction coil to construct a resonance circuit,
wherein the second induction coil is configured to surround the first induction coil, or the first induction coil is configured to surround the second induction coil
wherein both ends of the second induction coil are directly connected to both ends of the second condenser respectively without any intervening element,
wherein the second induction coil and the second condenser constitute a closed loop,
wherein the rectifying diode rectifies an electromotive force induced in the first induction coil,
wherein the battery is charged based on the rectified electromotive force, and
wherein the first induction coil and the second induction coil share a winding center.
19. A wireless power transmitting system comprising:
a receiver comprising a first induction coil and, a first condenser connected to the first induction coil to construct a resonance circuit, a rectifying diode, and a battery; and
a repeater comprising a second induction coil and a second condenser connected to the second induction coil to construct a resonance circuit,
wherein the repeater is configured to wirelessly repeat power generated outputted by an electromagnetic wave generating source transmitter to the receiver, and
the second induction coil is positioned on an outer side or an inner side of the first induction coil,
wherein both ends of the second induction coil are directly connected to both ends of the second condenser respectively without any intervening element,
wherein the second induction coil and the second condenser constitute a closed loop,
wherein the rectifying diode rectifies an electromotive force induced in the first induction coil,
wherein the battery is charged based on the rectified electromotive force, and
wherein the first induction coil and the second induction coil share a winding center.
0. 20. A wireless power receiving system comprising:
a repeat lc circuit configured to repeat power received from a transmission lc circuit through resonance;
a reception lc circuit configured to receive the repeated power through resonance;
a rectifying diode connected to the reception lc circuit, and
a battery connected to the rectifying diode,
wherein the repeat lc circuit is not physically connected to the transmission lc circuit such that the repeat lc circuit is movable with respect to the transmission lc circuit, thereby a first coil of the repeat lc circuit is positioned substantially parallel to a third coil of the transmission lc circuit,
wherein the repeat lc circuit comprises the first coil and a first condenser connected to the first coil, and the reception lc circuit comprises s second coil and a second condenser connected to the second coil,
wherein the first coil surrounds the second coil,
wherein the rectifying diode rectifies the received power provided from the reception lc circuit, and
wherein the battery is charged based on the rectified power provided from the rectifying diode.
7. A wireless power transmitting receiving system comprising:
a receiver comprising a first induction coil and, a first condenser connected to the first induction coil, a rectifying diode, and a battery; and
a repeater comprising a second induction coil and a second condenser connected to the second induction coil, wherein the second induction coil and the second condenser construct a resonance circuit,
wherein the repeater is configured to wirelessly repeat power generated output by a an electromagnetic wave generating source transmission coil of an external transmitter to the receiver, and
wherein the first induction coil and the second induction coil are positioned on a substantially same plane,
wherein both ends of the second induction coil are directly connected to both ends of the second condenser respectively without any intervening element,
wherein the second induction coil and the second condenser constitute a closed loop,
wherein the rectifying diode rectifies an electromotive force induced in the first induction coil,
wherein the battery is charged based on the rectified electromotive force, and
windings of the first induction coil are configured to form a first circle, and windings of the second induction coil are configured to form a second circle surrounding the first circle.
13. A wireless power transmitting system comprising:
an electromagnetic wave generating source a transmitter configured to generate output power and comprising an ac power generating circuit configured to apply transmission power for outputting the power;
a repeater system configured to receive the power from the electromagnetic wave generating source transmitter and wirelessly transmitting the power to a receiver; and
a receiver configured to wirelessly receive the power from the repeater system,
wherein the repeater system comprises:
a first repeater comprising a first induction coil positioned on a plane substantially identical to a plane on which an induction coil of the electromagnetic wave generating source transmitter is positioned and a first condenser, wherein the first induction coil and the first condenser construct a first resonance circuit; and
a second repeater comprising a second induction coil positioned on a plane substantially identical to a plane on which an induction coil of the receiver is positioned and a second condenser, wherein the second induction coil and the second condenser construct a second resonance circuit,
wherein both ends of the first induction coil are directly connected to both ends of the first condenser respectively without any intervening element,
wherein both ends of the second induction coil are directly connected to both ends of the second condenser respectively without any intervening element,
wherein the first induction coil and the first condenser constitute a first closed loop,
wherein the second induction coil and the second condenser constitute a second closed loop,
wherein the first induction coil is positioned on an outer side of the induction coil of the transmitter, and
wherein the second induction coil is positioned on an outer side of the induction coil of the receiver, and the second induction coil and the induction coil of the receiver share a winding center.
0. 1. A wireless power transmitting system comprising:
an electromagnetic wave generating source comprising a first induction coil and a first condenser connected to the first induction coil; and
a repeater comprising a second induction coil and a second condenser connected to the second induction coil,
wherein the repeater is configured to wirelessly repeat power generated by the electromagnetic wave generating source to a receiver, and
the first induction coil and the second induction coil are positioned on a substantially same plane.
0. 2. The system of
0. 3. The system of
windings of the first induction coil are configured to form a first circle, and
windings of the second induction coil are configured to form a second circle surrounding the first circle.
0. 4. The system of
0. 5. The system of
0. 6. The system of
8. The system of
0. 9. The system of
windings of the first induction coil are configured to form a first circle, and
windings of the second induction coil are configured to form a second circle surrounding the first circle.
10. The system of claim 9 7, wherein the first circle and the second circle correspond to concentric circles.
11. The system of claim 9 7, wherein the first circle and the second circle are configured to be parallel to a third circle formed by windings of a third induction coil included in the electromagnetic wave generating source the transmission coil.
12. The system of
0. 14. A wireless power transmitting system comprising:
a repeat lc circuit configured to repeat power received from a transmission lc circuit through resonance; and
a reception lc circuit configured to receive the repeated power through resonance,
wherein the power received at the reception lc circuit through the repeat lc circuit is greater than or equal to 0.28 watts, and
a current of the power received at the reception lc circuit through the repeat lc circuit is greater than or equal to 4.7 milliamps.
0. 15. The system of
0. 16. A wireless power transmitting system comprising:
an electromagnetic wave generating source comprising a first induction coil and a first condenser connected to the first induction coil; and
a repeater comprising a second induction coil and a second condenser connected to the second induction coil,
wherein the second induction coil is configured to surround the first induction coil, or the first induction coil is configured to surround the second induction coil.
0. 18. A wireless power transmitting system comprising:
an electromagnetic wave generating source comprising a first induction coil and a first condenser connected to the first induction coil; and
a repeater comprising a second induction coil and a second condenser connected to the second induction coil,
wherein the repeater is configured to wirelessly repeat power generated by the electromagnetic wave generating source to a receiver, and
the second induction coil is positioned on an outer side or an inner side of the first induction coil.
0. 21. The wireless power receiving system of claim 20, wherein windings of the first coil are configured to form a first circle and windings of the second coil are configured to form a second circle.
0. 22. The wireless power receiving system of claim 20, wherein windings of the first coil and windings of the second coil share a winding center.
0. 23. The wireless power receiving system of claim 20, wherein the first coil and the second coil are positioned on a substantially same plane.
0. 24. The wireless power receiving system of claim 20, wherein the first condenser is variable condenser.
0. 25. The wireless power receiving system of claim 24, wherein the variable condenser is for adjusting an efficiency for transferring power incident on the first coil to outside of the first coil by changing a capacitance of the variable condenser.
|
|||||||||||||||||
TABLE 6
Coil Construction of Transmission coil, Repeater,
Receiver 1, Receiver 2
Trans-
mission
Receiver
Receiver
Coil
Repeater
1
2
Coil
0.3
0.3
0.3
0.3
Core(mm)
3 * 55
7 * 45
7 * 45
7 * 45
(Dia. * Length)
No. of winding
40
40
15
Upper Receiver:
(Times)
10
Lower Repeater:
40
In Table 6, the first receiver is constructed of a general solenoid coil constructed such that a coil is wound round a core and the second receiver includes a receiving coil wound round the upper part of a common core ten times and a repeater constructing a resonance circuit of a coil wound round the lower part of the common core forty times and a capacitor.
Table 7 represents the voltage, current and power measured at an output load terminal (tens of parallel LED's) of a receiver 31 when a transmission coil 29, an amplifying repeater 30 and the receiver 31 manufactured as shown in Table 6 are installed as shown in
TABLE 7
A receiving voltage, current and power measured at an
output load terminal of a receiver.
Distance
Receiving Voltage
Receiving Current
Receiving Power
(cm)
(V)
(A)
(W)
5
3.9
1.900
7.410
10
2.6
1.000
2.600
15
1.4
0.200
0.280
Table 8 represents the voltage, current and power measured at an output load terminal of receivers 33 and 34 when the transmission coil 29, amplifying repeater 32 and receivers 33 and 34 manufactured as shown in Table 6 are installed as shown in
TABLE 8
A receiving voltage, current and power measured at an
output load terminal of a receiver 2.
Distance
Receiving Voltage
Receiving Current
Receiving Power
(cm)
(V)
(A)
(W)
5
4.6
3.500
16.100
10
4.4
3.500
15.400
15
2.7
1.700
4.590
20
2.0
0.700
1.400
It can be known from Tables 7 and 8 that the receiving voltage, receiving current and receiving power in response to a distance are much larger when they are obtained using the receiver 31 manufactured by winding only an induction coil round a core than when they are obtained using the receivers 33 and 34 including an induction coil and a repeater constructed of a resonance circuit, which are attached to a single common core.
Another embodiment of the present invention constructs induction coils by winding coils having various diameters round bobbins having various sizes by different numbers of winds in consideration of the size and scale of an electromagnetic wave generating source, connects the induction coils in series or in parallel, inserts ferrite cores having diameters and lengths fitted into the internal diameters of the bobbins, and connects the induction coils to a variable condenser to construct a resonance circuit. In this manner, an electromagnetic field amplifying repeater can be constructed in various sizes and forms and an apparatus capable of obtaining charging voltage, charging current and charging power with various levels can be realized using the amplifying repeater and the wireless power converter.
Another embodiment of the present invention constructs a transmission coil, a repeater and a receiver using the spiral structure disclosed in Korean Patent Application No. 10-2004-0000528 applied by the Applicant. In this case, an electromagnetic wave generating source that generates a voltage of AC 220V and 60 Hz converted into an AC voltage waveform having a frequency of 120 kHz through an AC-AC adapter is connected to the transmission coil in a spiral form, a receiving coil is connected to a charging circuit, and a received charging current and voltage are measured. The distance between the transmission coil and the receiving coil is 5 cm.
TABLE 9
Internal diameters, external diameters, types and numbers of
winds of the spiral transmission coil, repeater coil and receiving coil.
Internal
External
Numbers
Diameter
Diameter
Coil
of
(mm)
(mm)
Spec.
winds
Receiving
30
80
0.2 * 9
24
Coil
Repeater
30
80
0.2 * 9
24
Coil
Transmission
30
40
0.2 * 9
4
Coil
In
For reference, when only the transmission coil 53 and receiving coil 51 are used without using the repeater and the distance between the transmission coil and the receiving coil is 5 cm, charging voltage is 1.4V, charging current is 0.01 A and charging power is 0.014 W, which are very small.
In
TABLE 10
Internal diameters, external diameters, types and numbers of
winds of the spiral transmission coil, repeater coil and receiving coil.
Internal
External
Numbers
Diameter
Diameter
Coil
of
(mm)
(mm)
Spec.
winds
Receiving
30
80
0.2 * 9
24
Coil
Repeater
40
80
0.2 * 9
20
Coil
Transmission
30
40
0.2 * 9
4
Coil
Furthermore, the present invention can construct a wireless charging device that generates an induced voltage and current with high efficiency and charges the induced voltage and current in a charger using a rectifying diode and a smoothing condenser by simultaneously winding two wires of the spiral coil disclosed in Korea Patent Application No. 10-2004-0000528 in the form of plate such that they are located in parallel vertically, placing a ferromagnetic substance in a doughnut shape on the coil in order to increase flux caused by flux linkage per hour and connecting a variable condenser to the coil in series or in parallel to construct a resonance circuit. Here, an electromagnetic field amplifying repeater can be manufactured by constructing the resonance circuit using the spiral plate type coil, ferromagnetic substance in a doughnut shape and variable condenser. A method of manufacturing the electromagnetic field amplifying repeater is described in detail in Korea Patent Application No. 10-2004-0000528.
The present invention constructs a magnetic field amplifying repeater for amplifying a magnetic field at a position having a predetermined distance from an electromagnetic wave generating source and locates an electromagnetic wave amplifying repeater and a wireless power conversion charging device converter at a position distant from the amplifying repeater by a predetermined distance. The wireless power conversion charging device include a rectifying diode that rectifies an electromotive force induced in a structure in which a resonance and impedance matching variable condenser and a coil are connected in parallel with each other to induce maximum power using electromagnetic waves amplified by the amplifying repeater to transmit the induced power to a load and a smoothing condenser smoothing the rectified voltage and a wireless power. Accordingly, the present invention can repeat power to a predetermined distance from the electromagnetic wave generating source and convert electromagnetic power to improve industrial applicability. For example, the present invention can be used to charge contactless wireless battery or transmit power in real time at a short distance in the air or an insulator of a small power electronic device.
The present invention can locate the magnetic field amplifying repeater at a position having a predetermined distance from the electromagnetic wave generating source to install the wireless power converter using electromagnetic waves, and thus the wireless power converter can be freely located and applied in various ways.
While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.
| Patent | Priority | Assignee | Title |
| Patent | Priority | Assignee | Title |
| 2611094, | |||
| 4403347, | Feb 08 1980 | Hitachi, Ltd. | Antenna tuning circuit for AM radio receiver |
| 4583099, | Dec 27 1983 | Polyonics Corporation | Resonant tag circuits useful in electronic security systems |
| 4800328, | Jul 18 1986 | Inductran Inc. | Inductive power coupling with constant voltage output |
| 5929598, | Jul 03 1996 | Uniden Corporation | Noncontact charging device, charger, cordless electric equipment, and noncontact charger |
| 5959515, | Aug 11 1997 | Motorola, Inc. | High Q integrated resonator structure |
| 5966063, | Sep 07 1995 | Kabushiki Kaisha Toshiba | Planar magnetic device |
| 6172608, | Jun 19 1996 | Gemplus | Enhanced range transponder system |
| 6633155, | May 06 2002 | SOLID YEAR CO , LTD | Wireless mouse induction power supply |
| 6650227, | Dec 08 1999 | ASSA ABLOY AB | Reader for a radio frequency identification system having automatic tuning capability |
| 6839035, | Oct 07 2003 | A.C.C. Systems | Magnetically coupled antenna range extender |
| 7199717, | Feb 17 2004 | Tyco Fire & Security GmbH | Frequency-division marker for an electronic article surveillance system |
| 7885050, | Jul 29 2004 | JC PROTEK CO , LTD ; Andong National University Industry Academic Cooperation Foundation | Amplification relay device of electromagnetic wave and a radio electric power conversion apparatus using the above device |
| 8400017, | Sep 27 2008 | WiTricity Corporation | Wireless energy transfer for computer peripheral applications |
| 20010012208, | |||
| 20030048254, | |||
| 20030234730, | |||
| 20040130916, | |||
| 20050068146, | |||
| 20050179551, | |||
| CN1185599, | |||
| CN1447954, | |||
| EP533247, | |||
| EP533324, | |||
| EP829940, | |||
| JP10257697, | |||
| JP10295043, | |||
| JP11188113, | |||
| JP2000208316, | |||
| JP2001238372, | |||
| JP2002508916, | |||
| JP2003070187, | |||
| JP2003088005, | |||
| JP200556202, | |||
| JP3098432, | |||
| JP4329336, | |||
| KR1019910020756, | |||
| KR1020020080591, | |||
| KR1020040000528, | |||
| KR1020040008248, | |||
| KR1020040033297, | |||
| KR1020040052878, | |||
| KR1020040059562, | |||
| KR1020040072581, | |||
| KR1020040093696, | |||
| KR1020050027984, | |||
| KR1020050072402, | |||
| KR1020060005640, | |||
| KR1020060054861, | |||
| KR1020070041821, | |||
| KR1020070041824, | |||
| KR1020080084914, | |||
| KR1020090038150, | |||
| WO9749076, |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Mar 25 2016 | JC Protek Co., Ltd. | (assignment on the face of the patent) | / | |||
| Mar 25 2016 | Andong National University Industry Academic Cooperation Foundation | (assignment on the face of the patent) | / |
| Date | Maintenance Fee Events |
| Aug 16 2021 | M1552: Payment of Maintenance Fee, 8th Year, Large Entity. |
| Date | Maintenance Schedule |
| Mar 16 2024 | 4 years fee payment window open |
| Sep 16 2024 | 6 months grace period start (w surcharge) |
| Mar 16 2025 | patent expiry (for year 4) |
| Mar 16 2027 | 2 years to revive unintentionally abandoned end. (for year 4) |
| Mar 16 2028 | 8 years fee payment window open |
| Sep 16 2028 | 6 months grace period start (w surcharge) |
| Mar 16 2029 | patent expiry (for year 8) |
| Mar 16 2031 | 2 years to revive unintentionally abandoned end. (for year 8) |
| Mar 16 2032 | 12 years fee payment window open |
| Sep 16 2032 | 6 months grace period start (w surcharge) |
| Mar 16 2033 | patent expiry (for year 12) |
| Mar 16 2035 | 2 years to revive unintentionally abandoned end. (for year 12) |