WO2015025881A1 - 共振型電力伝送装置及び共振型電力多重伝送システム - Google Patents
共振型電力伝送装置及び共振型電力多重伝送システム Download PDFInfo
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- WO2015025881A1 WO2015025881A1 PCT/JP2014/071756 JP2014071756W WO2015025881A1 WO 2015025881 A1 WO2015025881 A1 WO 2015025881A1 JP 2014071756 W JP2014071756 W JP 2014071756W WO 2015025881 A1 WO2015025881 A1 WO 2015025881A1
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 205
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/05—Circuit arrangements or systems for wireless supply or distribution of electric power using capacitive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/50—Circuit arrangements or systems for wireless supply or distribution of electric power using additional energy repeaters between transmitting devices and receiving devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
Definitions
- the present invention relates to a resonance type power transmission apparatus and a resonance type power multiplex transmission system that transmit power using a transmission resonator and a reception resonator in which resonance conditions are matched.
- n is an integer value of 1 or more
- a relay coil relay antenna
- the wireless power transmission apparatus using the above method is multiplexed, if a relay antenna of another system is brought close to another relay antenna, mutual interference between the antennas occurs and transmission efficiency decreases. Therefore, in order to perform multiplex transmission, it is necessary to install relay antennas of each system at a distance of at least twice the diameter of the antenna, or to take magnetic shield measures to separate the magnetic flux of each system. Therefore, there is a problem that the power transmission device cannot be reduced in size or costs such as a magnetic shield countermeasure are required.
- the present invention has been made to solve the above-described problems, and is a resonant power transmission device and a resonant power multiplex transmission device that can be reduced in cost and reduced in size and enable high-efficiency power transmission.
- the purpose is to provide.
- a resonance type power transmission apparatus is a resonance type power transmission apparatus that transmits power using a transmission resonator and a reception resonator in which resonance conditions are matched, and a transmission power source that supplies power;
- a transmission antenna that transmits power from a transmission power source, a conductive material that connects the transmission resonator and the reception resonator at one point, and power from the transmission antenna via the transmission resonator and the reception resonator
- a receiving antenna for receiving and a receiving power source for receiving the power received by the receiving antenna are provided.
- FIG. 1 is a block diagram showing a configuration of a resonant power transmission apparatus according to Embodiment 1 of the present invention
- FIG. 2 is a circuit diagram thereof.
- a resonance type power transmission device is a device that transmits electric power including an electric signal.
- the resonance type power transmission apparatus includes a transmission power source 1, a transmission antenna 2, a transmission resonator 3, a reception resonator 4, a reception antenna 5, a reception power source 6, and a conductive material 7.
- the transmission power source 1, the transmission antenna 2 and the transmission resonator 3 constitute a transmission device 8
- the reception resonator 4 the reception antenna 5 and the reception power source 6 constitute a reception device 9.
- the transmission power supply 1 supplies single-frequency power to the transmission antenna 2.
- the transmission antenna 2 transmits the power supplied from the transmission power source 1 to the reception antenna 5 via the transmission resonator 3 and the reception resonator 4.
- the transmitting resonator 3 and the receiving resonator 4 resonate in accordance with a predetermined resonance condition.
- the transmission antenna 2 and the transmission resonator 3, and the reception antenna 5 and the reception resonator 4 may be grounded as shown in FIGS. 1 and 2 show the case where the transmitting antenna 2 and the transmitting resonator 3 and the receiving antenna 5 and the receiving resonator 4 are configured separately, respectively, for example, as shown in FIG.
- An integrated antenna / resonator 10 may be used.
- the reception antenna 5 receives power from the transmission antenna 2 via the transmission resonator 3 and the reception resonator 4.
- the reception power supply 6 supplies power received by the reception antenna 5 to a load device (not shown).
- the transmission method of the transmitting resonator 3 and the receiving resonator 4 is not particularly limited, and any of a magnetic field resonance method, an electric field resonance method, and an electromagnetic induction method may be used.
- the conductive material 7 connects the transmitting resonator 3 and the receiving resonator 4 at one point.
- “one-point connection” refers to a connection in which, as shown in FIG. 2, the connection point between the transmission resonator 3 and the reception resonator 4 is a single point as a circuit diagram.
- the shape of the conductive material 7 may be any shape such as a linear shape or a plate shape. 2 (a) and 2 (b) show a case where a linear conductive material 7 is connected to the return side between the resonators 3 and 4, and FIG. 2 (c) shows a hot side between the resonators 3 and 4.
- a linear conductive substance 7 is connected to the above.
- the conductive material 7 is not limited to the connection example shown in FIG. 2 as long as the resonators 3 and 4 can be connected at one point.
- the conductive material 7 may be connected obliquely between the resonators 3 and 4. . In this way, by connecting one point between the resonators 3 and 4 with the resonance conditions connected by the conductive material 7, the vibration energy due to the resonance of the transmission resonator 3 is received via the conductive material 7. The vibration energy can be amplified by resonance in the receiving resonator 4. Thereby, power can be transmitted from the transmission device 8 to the reception device 9 with high efficiency.
- FIG. 4A shows a case where a metal rope or the like is used as the conductive material 7 of the present invention.
- the transmitter 8 is connected to one end of the rope, and the receiver 9 is arranged in a car (elevator, cable car, ropeway, etc.) 20 connected to the rope.
- a car elevator, cable car, ropeway, etc.
- FIG. 4B shows the case where the present invention is applied to power transmission between the electromagnetic shielding rooms 21. When there is an enclosure that shields an electric field and a magnetic field as in the electromagnetic shielding room 21, the conventional method cannot transmit power.
- the transmission device 8 installed in one electromagnetic wave shield room 21a and the receiving device 9 installed in the other electromagnetic wave shield room 21b are connected at one point by the conductive substance 7, Electric power can be easily transmitted.
- a protective wall 22 that shields an electric field or a magnetic field between the transmission device 8 and the reception device 9 power transmission is possible.
- FIG. 5A shows an example in which the present invention is applied to a moving body (automobile, motorcycle, bicycle, etc.) 23 having a space insulated from the ground.
- the transmission device 8 and the reception device 9 are arranged in the space.
- the space is made of a conductive material, this can be used as the conductive material 7 of the present invention, and the transmitter 8 and the receiver 9 are placed in the space with a bolt or the like. It is possible to transmit power by simply connecting. Therefore, wiring work becomes unnecessary and the degree of freedom of installation of the devices 8 and 9 improves.
- FIG. 5B shows an example in which an existing conductive water pipe 24 is used as the conductive material 7 of the present invention. In this case, the water pipe 24 needs to be insulated from the ground (GND).
- FIG. 6 shows the application of the present invention to power supply from a ship 25 to an underwater device (such as an underwater probe) 26.
- the transmission device 8 is disposed on the ship 25 and the reception device 9 is disposed on the underwater device 26.
- the conductive material 7 an existing metal wire or the like may be used.
- FIG. 7 (a) shows that the existing electric wire 27 is used as the conductive material 7 of the present invention
- the right side shows that the existing indoor wiring 28 is used as the conductive material 7 of the present invention.
- Reference numerals 29 and 30 are a breaker and an outlet, respectively. This makes it possible to transmit another high-frequency power with respect to the commercial-frequency power originally flowing through the electric wires 27 and the wirings 28.
- FIG.7 (b) as the electric power of the transmission power supply 1, you may use the electric power by the solar generator 31 installed outdoors.
- the resonance type power transmission apparatus transmits power using the transmission resonator 3 and the reception resonator 4 in which the resonance conditions are matched.
- FIG. FIG. 8 is a block diagram showing a configuration of a resonant power transmission apparatus according to Embodiment 2 of the present invention.
- the resonant power transmission apparatus according to the second embodiment shown in FIG. 8 is obtained by adding a repeater 11 to the resonant power transmission apparatus according to the first embodiment shown in FIG.
- Other configurations are the same, and the same reference numerals are given and description thereof is omitted.
- the repeater 11 is disposed between the transmission resonator 3 and the reception resonator 4, and the relay resonator is adapted to the same resonance condition as that of the transmission resonator 3 and the reception resonator 4. It is.
- An example of the repeater 11 is as shown in FIG. Fig. 9 (a) shows one resonator connected, Fig. 9 (b) shows the transmitter and receiver resonators connected wirelessly, and Figs. 9 (c) to 9 (e) show the connected conductivity.
- the impedance of the substance 7 is used.
- the repeater 11 in which the resonance conditions are matched is provided between the transmitting resonator 3 and the receiving resonator 4.
- the transmission efficiency can be further improved with respect to the configuration.
- FIG. 10 is a diagram showing a configuration / application example of a resonant power transmission apparatus according to Embodiment 3 of the present invention.
- the resonant power transmission apparatus according to the third embodiment shown in FIG. 10 is provided with a plurality of receiving resonators 4 in addition to the configuration of the resonant power transmission apparatus according to the first embodiment shown in FIG. 7, the transmitting resonator 3 and the plurality of receiving resonators 4 are connected to each other.
- a receiving device 9 b including a receiving antenna 5 and a receiving power supply 6 is provided instead of the receiving device 9, and is configured separately from the receiving resonator 4.
- Other configurations are the same, and the same reference numerals are given and description thereof is omitted.
- FIG. 10 shows the application of the present invention to power supply to a vehicle 32 parked in a parking area.
- a plurality of receiving resonators 4 are arranged below the ground of each parking area. Thereby, when the vehicle 32 provided with the receiver 9b parks in the said parking area, electric power can be supplied to the said vehicle 32.
- FIG. 10 shows the application of the present invention to power supply to a vehicle 32 parked in a parking area.
- a plurality of receiving resonators 4 are arranged below the ground of each parking area.
- FIG. 11A shows the case where the present invention is applied to power supply to the train 33.
- the rail 34 and the wheel 35 of the train 33 are used as the conductive material 7, and power is supplied from the transmission device 8 connected to the rail 34 to the reception device 9 arranged in each vehicle.
- the rail 34 needs to be in a state of being floated in potential without being grounded to GND.
- FIG. 11B shows the application of the present invention to another power supply to the train 33.
- 11B shows a case where the receiving resonator 4 is arranged in a table 37 used under the seat 36 in the vehicle or in the rear seat.
- the user can supply power to the device simply by sitting with the device (smart phone, PC, mobile router, etc.) provided with the receiving device 9b or simply placing it on the table 37. Therefore, it is not necessary to connect to an outlet when charging the device, and convenience is improved.
- the transmitter 8 is not limited to being installed outside the train 33, and may be installed in the vehicle.
- FIG. 12A shows the application of the present invention to the power supply to the cordless iron 38.
- a plurality of receiving resonators 4 are arranged in a planar shape inside the ironing board 39.
- FIG. 12B shows the sheet member (table cloth, mat, carpet, etc.) 40 applied to the present invention.
- the plurality of receiving resonators 4 are arranged in a planar shape inside the sheet member 40.
- FIGS. 13B and 14A further use the power from the solar power generator 31 installed outdoors as the power of the transmission power source 1.
- FIG. 14B shows the conductive material 7 connected through one pole of the outlet 30.
- the repeater 11 is used in FIG.14 (b), it does not need to use it.
- FIG. 15A shows the application of the present invention to the power supply to the walking robot 41.
- a plurality of receiving resonators 4 are arranged in a plane under the walking surface (ground, floor, etc.), and the receiving device 9 b is arranged on the foot portion of the walking robot 41.
- the receiving device 9 b is arranged on the foot portion of the walking robot 41.
- electric power can be supplied to the walking robot 41 while the walking robot 41 is walking on the walking surface.
- the information transmission device 42 in the transmission device 8 and the information reception device 43 in the reception device 9b it is possible to transmit not only power transmission but also information related to walking (walking position, orientation, etc.).
- the present invention is not limited to the walking robot 41 and can be similarly applied to shoes, a cane, a vacuum cleaner, and the like.
- an application for visually impaired persons can be provided. That is, by connecting a vibrator to the receiving device 9b and arranging the receiving resonator 4 at a place where the conventional braille mat is arranged, when the shoe is positioned on the receiving resonator 4, the vibration is caused by the vibration of the vibrator.
- a braille mat can be simulated.
- FIG. 15B shows the application of the present invention to the power supply to the sensor 45 that measures the acceleration, pressure, angle, etc. of the swing of the golf club 44.
- a plurality of receiving resonators 4 are arranged in a plane under the ground, and a receiving device 9 b having a sensor 45 is arranged in the head portion of the golf club 44.
- a receiving device 9 b having a sensor 45 is arranged in the head portion of the golf club 44.
- the present invention is not limited to the golf club 44 but can be similarly applied to tennis / table tennis rackets, bats, fishing rods, mobile devices, and the like.
- FIG. 16 shows the present invention applied to a flying object (airplane, helicopter, balloon, missile, artificial satellite, space station, linear motor car, etc.) 46.
- a flying object airplane, helicopter, balloon, missile, artificial satellite, space station, linear motor car, etc.
- the space in the flying object 46 is comprised with the electroconductive material, this can be utilized as the electroconductive substance 7 of this invention, and the transmitter 8 and the receiver 9 are set in the said space. It is possible to transmit electric power simply by connecting to the terminal with a bolt or the like. Therefore, wiring work becomes unnecessary and the degree of freedom of installation of the devices 8 and 9 is improved.
- FIG. 17A shows the bed 47 applied with the present invention.
- a plurality of receiving resonators 4 are arranged in a flat shape inside the bed 47. Thereby, electric power can be supplied to the said apparatus only by putting the apparatus provided with the receiver 9b in the bed 47.
- FIG. 17B shows the case where the present invention is applied to the bath 48. In this case, the plurality of receiving resonators 4 are arranged in a plane on the back side of the wall surface of the bath 48.
- a device a television, a radio, a smartphone, an electric shaver, an eyeglass cleaner, a jet bubble device, or the like
- the receiving device 9b close to the wall surface.
- a device a television, a radio, a smartphone, an electric shaver, an eyeglass cleaner, a jet bubble device, or the like
- the transmitting side and the receiving side are connected at one point, there is an advantage that there is no route for current flow and there is no fear of electric shock.
- a plurality of receiving resonators 4 are provided, and the conductive substance 7 is configured to connect the transmitting resonator 3 and the plurality of receiving resonators 4. Therefore, in addition to the effects in the first embodiment, it is possible to supply power to a wide range with the single transmission device 8. That is, in the conventional method, it is necessary to provide the transmission device and the reception device in a one-to-one relationship, and the installation cost increases when power is supplied over a wide range. On the other hand, in the present invention, power transmission can be easily performed by connecting a single transmission device 8 to a plurality of reception devices 9 by one-line connection, so that power transmission over a wide range is possible at low cost.
- FIG. FIG. 18 is a diagram showing a configuration / application example of a resonant power transmission apparatus according to Embodiment 4 of the present invention.
- the resonant power transmission apparatus according to the fourth embodiment shown in FIG. 18 separates the conductive material 7 of the resonant power transmission apparatus according to the first embodiment shown in FIG. This is connected to the resonator 3 and the other is connected to the receiving resonator 4. And when both contact, the electric power transmission from the transmitter 8 to the receiver 9 is enabled.
- Other configurations are the same, and the same reference numerals are given and description thereof is omitted.
- FIG. 18 shows the application of the present invention to the power supply to the vehicle 32 parked in the parking area.
- the end of the conductive material 7 connected to the transmission device 8 is electrically connected to the conductive material 7 (contact line 71) connected to the reception device 9 in order to facilitate contact with the conductive material 7 such as the electrode plate 72.
- a plate-like member is provided.
- this electrode plate 72 is arrange
- FIG. 19A shows the application of the present invention to power supply to the train 33.
- an electrode plate 72 connected to the transmission device 8 is arranged on a table 37 used in the rear seat 36 in the vehicle.
- the transmission device 8 is not limited to being installed outside the train 33, and may be installed in the vehicle.
- FIG. 19B shows the case where the present invention is applied to the bath 48.
- an electrode plate 72 connected to the transmitter 8 is disposed on the wall surface of the bath 48.
- FIG. 20A shows the table 49 applied with the present invention.
- a conductive sheet member 50 or the like connected to the transmission device 8 is pasted on the table 49.
- electric power can be supplied to the said apparatus only by putting the apparatus provided with the receiver 9 which has the contact line 71 on the electroconductive sheet member 50.
- FIG. FIG. 20B shows the sheet member applied with the present invention.
- a conductive sheet member 50 connected to the transmission device 8 is used as the sheet member.
- power can be supplied to the device.
- FIG.21 (a) you may use the said electroconductive sheet member 50 for what utilized the existing wiring 28 (or electric wire 27) as the electroconductive substance 7 of this invention.
- FIG. 21B and FIG. 22A further use the power from the solar power generator 31 installed outdoors as the power of the transmission power source 1.
- FIG. 22B shows the conductive substance 7 connected through one pole of the outlet 30.
- the repeater 11 is used in FIG.22 (b), it does not need to use it.
- FIG. 23A shows the case where the present invention is applied to power supply to the walking robot 41.
- the conductive sheet member 50 or the like connected to the transmitting device 8 is arranged on the walking surface
- the electrode plate 72 connected to the receiving device 9 is arranged on the bottom of the shoes of the walking robot 41.
- electric power can be supplied to the walking robot 41 while the walking robot 41 is walking on the walking surface.
- the information transmission device 42 in the transmission device 8 and the information reception device 43 in the reception device 9 it is possible to transmit not only power transmission but also information related to walking (walking position, orientation, etc.).
- the present invention is not limited to the walking robot 41 and can be similarly applied to shoes, a cane, a vacuum cleaner, and the like.
- an application for visually impaired persons can be provided. That is, a vibrator is provided on a shoe, and a conductive sheet member 50 to which a transmitting device 8 is connected is disposed instead of a braille mat used in the past, so that when the shoe contacts the conductive sheet member 50, the vibration of the vibrator Can simulate a braille mat.
- FIG. 23B shows the application of the present invention to the power supply to the sensor 45 that measures the acceleration, pressure, angle, etc. of the swing of the golf club 44.
- the user holds the mobile transmission device 8 in a pocket or the like, places the receiving device 9 on the head portion of the golf club 44 constituted by the conductive shaft 73, and places the conductive shaft 73 on the grip portion.
- An electrode plate 72 connected to the receiving device 9 is disposed.
- the present invention is not limited to the golf club 44 but can be similarly applied to tennis / table tennis rackets, bats, fishing rods, mobile devices, and the like.
- FIG. 24A shows the case where the present invention is applied to power supply to devices in the bag 51.
- the conductive sheet member 50 connected to the transmitting device 8 is arranged on the floor, and the electrode plate 72 connected to the receiving device 9 is arranged in the bag 51.
- the power can be supplied to the receiving device 9 in the bag 51 only by placing the bag 51 on the conductive sheet member 50.
- FIG. 24B shows a case where a plurality of receiving resonators 4 are arranged on a plane in the cloth of the bag 51.
- FIG. FIG. 25 is a diagram showing a configuration of a resonant power multiplex transmission system according to Embodiment 5 of the present invention.
- the resonant power multiplex transmission system according to the fifth embodiment shown in FIG. 25 includes a plurality of resonant power transmission apparatuses according to the first embodiment shown in FIG. Other configurations are the same, and the same reference numerals are given and description thereof is omitted.
- the present invention can be applied to a billing / information system for billing a vehicle 32 that has been parked and charged in a parking area.
- the frequency to be used can be fixed to one. Therefore, the design satisfying the regulations of the Radio Law can be easily performed by using the ISM band or the like. As described above, it is possible to increase the transmission power and simplify the electromagnetic shield structure.
- FIG. 25A shows a case where the receiving resonator 4 is arranged under the ground of each parking area
- FIG. 25B shows a case where the electrode plate 72 is arranged on the ground of each parking area. Is shown.
- the resonant power transmission device of the present invention since the resonant power transmission device of the present invention is configured in a multiple manner, there is no mutual interference between the systems, and independent power transmission can be achieved. Therefore, the size can be reduced.
- the frequency to be used since there is no mutual interference on the transmission path even in the multiplex transmission, the frequency to be used can be fixed to one, so that the design satisfying the regulations of the Radio Law can be easily performed by using the ISM band or the like. Therefore, it is possible to increase the transmission power and simplify the electromagnetic shield structure.
- FIG. FIG. 26 is a circuit diagram showing a configuration of a resonant power multiplex transmission system according to Embodiment 6 of the present invention.
- the resonant power multiplex transmission system according to the sixth embodiment shown in FIG. 26 uses the conductive substance 7 of the resonant power multiplex transmission system according to the fifth embodiment shown in FIG. 25 in common. Even with this configuration, multiplex transmission is possible. In this case, even when one system stops operating due to a failure, the other system can be operated without being affected (failure isolation is possible). Therefore, it can be used as an alternative function of a slip ring device used in an artificial satellite or wind power generation.
- each of the transmission antenna 2 and the reception antenna 5 is constituted by a single coil.
- each coil may be composed of, for example, a power feeding coil and a resonance coil, or may be composed of two or more coils.
- the resonance condition of the receiving antenna 5 varies depending on the distance between the paired transmitting antennas 2 and the load current / load impedance. Therefore, a reception power supply circuit that makes the resonance condition established for the reception antenna 5 variable according to such a change in the transmission state may be added to the reception side.
- the resonance conditions of the transmitting antenna 2 change depending on the distance between the paired receiving antennas 5, the load current, the load impedance, and the like. Therefore, a transmission power supply circuit may be added on the transmission side that makes the resonance condition established for the transmission antenna 2 variable according to such a change in the transmission state.
- the resonant power transmission device and the resonant power multiplex transmission system according to the present invention include a conductive material that connects the transmitting resonator and the receiving resonator at one point, and can be reduced in cost and size. Since efficient power transmission can be realized, it is suitable for power transmission between electromagnetic shielding rooms.
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Abstract
Description
また、隣接するアンテナ間との磁束を共有させることで電力伝送を行う構成のため、伝送経路に磁束を遮蔽するような磁性体がある場合には伝送効率が極端に低下してしまうという課題がある。
また、隣接するアンテナ間との磁束を共有させることで電力伝送を行う構成のため、アンテナ配置に制限が設けられてしまうという課題がある。
実施の形態1.
図1はこの発明の実施の形態1に係る共振型電力伝送装置の構成を示すブロック図であり、図2はその回路図である。
共振型電力伝送装置は、電気信号を含む電力を伝送する装置である。この共振型電力伝送装置は、図1に示すように、送信電源1、送信アンテナ2、送信用共振器3、受信用共振器4、受信アンテナ5、受信電源6及び導電性物質7から構成されている。なお図1において、送信電源1、送信アンテナ2及び送信用共振器3は送信装置8を構成し、受信用共振器4、受信アンテナ5及び受信電源6は受信装置9を構成する。
送信アンテナ2は、送信電源1から供給された電力を、送信用共振器3及び受信用共振器4を介して受信アンテナ5に伝送するものである。
また、図1,2では、送信アンテナ2及び送信用共振器3と、受信アンテナ5及び受信用共振器4をそれぞれ別体で構成した場合について示したが、例えば図3に示すように、それぞれ一体に構成したアンテナ兼用共振器10を用いてもよい。
受信電源6は、受信アンテナ5により受信された電力を負荷機器など(不図示)に供給するものである。
なお、送信用共振器3及び受信用共振器4の伝送方式は特に限定されるものではなく、磁界共鳴による方式、電界共鳴による方式、電磁誘導による方式のいずれであってもよい。
このように、共振条件が合わせられた共振器3,4間を導電性物質7で1点接続することにより、送信用共振器3の共振による振動エネルギーを導電性物質7を介して受信用共振器4に送り、当該受信用共振器4において当該振動エネルギーを共振により増幅させることができる。これにより、送信装置8から受信装置9へ電力を高効率に伝送することが可能となる。
図4(a)は金属製のロープなどを本発明の導電性物質7として利用したものである。この場合、ロープの一端に送信装置8を接続し、このロープに繋がれたかご(エレベータ、ケーブルカー、ロープウェーなど)20内に受信装置9を配置する。これにより、既存のロープなどを介してかご20に電力を供給することができる。
また、図4(b)は電磁波シールドルーム21間の電力伝送に本発明を適用したものである。電磁波シールドルーム21のように電界、磁界を遮蔽する囲いがある場合、従来方式では電力を伝送することができない。しかしながら、本発明の方式では、一方の電磁波シールドルーム21aに設置された送信装置8と、他方の電磁波シールドルーム21bに設置された受信装置9とを導電性物質7で1点接続することで、容易に電力を伝送することができる。また、送信装置8と受信装置9との間に、電界、磁界を遮蔽する防護壁22などがある場合にも同様に電力伝送が可能である。
また、図5(b)は既存の導電性の水道管24を本発明の導電性物質7として利用したものである。なおこの場合、水道管24は大地(GND)と絶縁されている必要がある。これにより、電力伝送のための配線作業が不要となる。
また、図6は船25から水中用装置(水中探査機など)26への電力供給に本発明を適用したものである。この場合、船25に送信装置8を配置し、水中用装置26に受信装置9を配置する。なお、導電性物質7としては既存の金属製のワイヤなどを用いればよい。
また、従来方式による送信アンテナ2、送信用共振器3、受信用共振器4及び受信アンテナ5間の直接的な空間磁束の共振結合を必要とせず、伝送距離や方向を任意に設定することができる。
図8はこの発明の実施の形態2に係る共振型電力伝送装置の構成を示すブロック図である。この図8に示す実施の形態2に係る共振型電力伝送装置は、図1に示す実施の形態1に係る共振型電力伝送装置に中継器11を追加したものである。その他の構成は同様であり、同一の符号を付してその説明を省略する。
この中継器11を用いることで、送信用共振器3からの電力を一端中継器11で受信して増幅させて受信用共振器4に送ることができ、伝送効率を向上させることができる。
図10はこの発明の実施の形態3に係る共振型電力伝送装置の構成・適用例を示す図である。この図10に示す実施の形態3に係る共振型電力伝送装置は、図1に示す実施の形態1に係る共振型電力伝送装置の構成に対し、受信用共振器4を複数設け、導電性物質7により送信用共振器3と複数の受信用共振器4とをそれぞれ接続させたものである。また図10では、受信装置9に代えて、受信アンテナ5及び受信電源6からなる受信装置9bを備え、受信用共振器4とは別体に構成している。その他の構成は同様であり、同一の符号を付してその説明を省略する。
また、図11(b)は電車33への別の電力供給に本発明を適用したものである。図11(b)は、車内の座席36の下又は後部座席で利用するテーブル37内に受信用共振器4を配置したものである。これにより、利用者が受信装置9bを備えた機器(スマートフォン、PC、モバイルルータなど)を持って座るだけで、又はテーブル37上に置くだけで、当該機器に電力を供給することができる。よって、機器の充電の際にコンセントに接続する必要がなくなり、利便性が向上する。なお、送信装置8は電車33の外に設置する場合に限らず、車内に設置するようにしてもよい。
また、図12(b)はシート部材(テーブルクロス、マット、カーペットなど)40に本発明を適用したものである。この場合、複数の受信用共振器4をシート部材40の内部に平面状に配置する。これにより、受信装置9bを備えた機器(掃除機など)がシート部材40上に置かれた際に、当該機器に電力を供給することができる。なお、図13(a)に示すように、既存の配線28(又は電線27)を本発明の導電性物質7として利用したものに上記シート部材40を用いてもよい。図13(b),14(a)はさらに、送信電源1の電力として、屋外に設置されたソーラー発電機31による電力を用いたものである。また、図14(b)は導電性物質7をコンセント30の一極を介して接続したものである。なお図14(b)では中継器11を用いているが、用いなくてもよい。
また、図17(b)は風呂48に本発明を適用したものである。この場合、複数の受信用共振器4を風呂48の壁面の裏側に平面状に配置する。これにより、受信装置9bを備えた機器(テレビ、ラジオ、スマートフォン、電気シェーバー、めがね洗浄器、ジェットバブル装置など)を当該壁面に近づけるだけで、当該機器に電力を供給することができる。なお、本発明では送信側と受信側が1点で接続されているため、電流が流れるルートがなく、感電の恐れがないという利点もある。
図18はこの発明の実施の形態4に係る共振型電力伝送装置の構成・適用例を示す図である。この図18に示す実施の形態4に係る共振型電力伝送装置は、図1に示す実施の形態1に係る共振型電力伝送装置の導電性物質7を2つに分離させ、一方を送信用共振器3に接続させ、他方を受信用共振器4に接続させたものである。そして、両者が接触した際に送信装置8から受信装置9への電力伝送を可能とする。その他の構成は同様であり、同一の符号を付してその説明を省略する。
また、図19(b)は風呂48に本発明を適用したものである。この場合、風呂48の壁面に送信装置8に接続された電極板72が配置されている。これにより、接触構造(磁石による吸引構造など)を有する受信装置9を備えた機器を壁面の電極板72に接触させるだけで、当該機器に電力を供給することができる。なお、本発明では送信側と受信側が1点で接続されているため、電流が流れるルートがなく、感電の恐れがないという利点もある。
また、図20(b)はシート部材に本発明を適用したものである。この場合、シート部材として送信装置8に接続された導電性のシート部材50を用いる。これにより、接触線71を有する受信装置9を備えた機器が導電性シート部材50上に置かれた際に、当該機器に電力を供給することができる。なお、図21(a)に示すように、既存の配線28(又は電線27)を本発明の導電性物質7として利用したものに上記導電性シート部材50を用いてもよい。図21(b),図22(a)はさらに、送信電源1の電力として、屋外に設置されたソーラー発電機31による電力を用いたものである。また、図22(b)は導電性物質7をコンセント30の一極を介して接続したものである。なお図22(b)では中継器11を用いているが、用いなくてもよい。
図25はこの発明の実施の形態5に係る共振型電力多重伝送システムの構成を示す図である。この図25に示す実施の形態5に係る共振型電力多重伝送システムは、図1に示す実施の形態1に係る共振型電力伝送装置を複数系統設けたものである。その他の構成は同様であり、同一の符号を付してその説明を省略する。
また、伝送経路上での相互干渉がないため、使用する周波数を一つに固定できることから、ISM帯などを使用することにより、電波法の規制を満足した設計を容易に行える。以上により、送信電力の大電力化や電磁シールド構造の簡易化などが可能である。
図26はこの発明の実施の形態6に係る共振型電力多重伝送システムの構成を示す回路図である。この図26に示す実施の形態6に係る共振型電力多重伝送システムは、図25に示す実施の形態5に係る共振型電力多重伝送システムの導電性物質7を共通化したものである。このように構成しても多重伝送が可能である。この場合、1つの系統が故障により動作しなくなった場合にも他の系統はその影響を受けることなく動作させることができる(故障分離が可能)。よって、人工衛星や風力発電などで用いられるスリップリング装置の代替機能として用いることができる。
同様に、実施の形態1-6において、送信アンテナ2では、対となる受信アンテナ5間の距離や負荷電流・負荷インピーダンスなどによって共振条件が変化する。そこで、送信側に、このような伝送状況の変化に応じて、送信アンテナ2に対して成立させる共振条件を可変とする送信電源回路を追加してもよい。
Claims (13)
- 共振条件が合わせられた送信用共振器及び受信用共振器を用いて電力を伝送する共振型電力伝送装置であって、
電力を供給する送信電源と、
前記送信電源からの電力を伝送する送信アンテナと、
前記送信用共振器と前記受信用共振器とを1点接続する導電性物質と、
前記送信用共振器及び前記受信用共振器を介して前記送信アンテナからの電力を受信する受信アンテナと、
前記受信アンテナにより受信された電力を受信する受信電源と
を備えたことを特徴とする共振型電力伝送装置。 - 前記送信アンテナ及び前記送信用共振器と、前記受信アンテナ及び前記受信用共振器はそれぞれ一体に構成された
ことを特徴とする請求項1記載の共振型電力伝送装置。 - 前記送信用共振器と前記受信用共振器との間に設けられ、前記共振条件が合わせられた中継用の共振器を備えた
ことを特徴とする請求項1記載の共振型電力伝送装置。 - 前記受信用共振器は複数設けられ、
前記導電性物質は、前記送信用共振器と前記複数の受信用共振器とをそれぞれ接続する
ことを特徴とする請求項1記載の共振型電力伝送装置。 - 前記導電性物質は、2つに分離され、一方が前記送信用共振器に接続され、他方が前記受信用共振器に接続された
ことを特徴とする請求項1記載の共振型電力伝送装置。 - 前記送信用共振器及び前記受信用共振器は磁界共鳴を行う
ことを特徴とする請求項1記載の共振型電力伝送装置。 - 前記送信用共振器及び前記受信用共振器は電界共鳴を行う
ことを特徴とする請求項1記載の共振型電力伝送装置。 - 前記送信用共振器及び前記受信用共振器は電磁誘導を行う
ことを特徴とする請求項1記載の共振型電力伝送装置。 - 前記送信アンテナ及び前記受信アンテナは、各々2個以上のコイルから構成された
ことを特徴とする請求項1記載の共振型電力伝送装置。 - 前記受信アンテナの伝送状況に応じて前記受信アンテナの共振条件を可変する受信電源回路を備えた
ことを特徴とする請求項1記載の共振型電力伝送装置。 - 前記送信アンテナの伝送状況に応じて前記送信アンテナの共振条件を可変する送信電源回路を備えた
ことを特徴とする請求項1記載の共振型電力伝送装置。 - 共振条件が合わせられた送信用共振器及び受信用共振器を用いて電力を伝送する共振型電力伝送装置を複数備えた共振型電力多重伝送システムであって、
前記共振型電力伝送装置は、
電力を供給する送信電源と、
前記送信電源からの電力を伝送する送信アンテナと、
前記送信用共振器と前記受信用共振器とを1点接続する導電性物質と、
前記送信用共振器及び前記受信用共振器を介して前記送信アンテナからの電力を受信する受信アンテナと、
前記受信アンテナにより受信された電力を受信する受信電源とを備えた
ことを特徴とする共振型電力多重伝送システム。 - 前記各共振型電力伝送装置の導電性物質が共通化された
ことを特徴とする請求項12記載の共振型電力多重伝送システム。
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- 2014-08-20 US US14/910,955 patent/US9712000B2/en active Active
- 2014-08-20 EP EP14838180.9A patent/EP3046218B1/en active Active
- 2014-08-20 WO PCT/JP2014/071756 patent/WO2015025881A1/ja active Application Filing
- 2014-08-20 CN CN201480046548.8A patent/CN105474510B/zh not_active Expired - Fee Related
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JP6113360B1 (ja) * | 2016-01-22 | 2017-04-12 | 三菱電機エンジニアリング株式会社 | 電力伝送装置及び高周波電源 |
WO2017126112A1 (ja) * | 2016-01-22 | 2017-07-27 | 三菱電機エンジニアリング株式会社 | 電力伝送装置、高周波電源及び高周波整流回路 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2015025881A1 (ja) | 2017-03-02 |
TW201521319A (zh) | 2015-06-01 |
JP5777828B2 (ja) | 2015-09-09 |
EP3046218A1 (en) | 2016-07-20 |
US9712000B2 (en) | 2017-07-18 |
TWI549398B (zh) | 2016-09-11 |
EP3046218B1 (en) | 2018-12-12 |
KR20160027202A (ko) | 2016-03-09 |
US20160197520A1 (en) | 2016-07-07 |
CN105474510B (zh) | 2018-02-16 |
KR101616685B1 (ko) | 2016-04-28 |
EP3046218A4 (en) | 2017-06-07 |
CN105474510A (zh) | 2016-04-06 |
WO2015025438A1 (ja) | 2015-02-26 |
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