JP2012253398A - Device, system, and method for transmitting power and information - Google Patents
Device, system, and method for transmitting power and information Download PDFInfo
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- JP2012253398A JP2012253398A JP2009225278A JP2009225278A JP2012253398A JP 2012253398 A JP2012253398 A JP 2012253398A JP 2009225278 A JP2009225278 A JP 2009225278A JP 2009225278 A JP2009225278 A JP 2009225278A JP 2012253398 A JP2012253398 A JP 2012253398A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 185
- 238000004891 communication Methods 0.000 claims abstract description 95
- 230000008878 coupling Effects 0.000 claims abstract description 47
- 238000010168 coupling process Methods 0.000 claims abstract description 47
- 238000005859 coupling reaction Methods 0.000 claims abstract description 47
- 230000005684 electric field Effects 0.000 claims abstract description 37
- 230000004907 flux Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
Classifications
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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
- H02J50/005—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
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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
-
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
Description
本発明は、電力と情報を非接触で同時に受け渡しを行う装置、システム、及び方法に関する。 The present invention relates to an apparatus, a system, and a method for simultaneously transferring power and information without contact.
近年、ノート型パーソナルコンピュータ、非接触型ICカード、RFID（Radio Frequency Identification）など、非接触でワイヤレス情報通信を行う装置が普及している。また、コードレス電話や電動髭剃り器など、非接触でワイヤレス充電が可能な装置も普及してきている。そこで、このようなワイヤレス通信とワイヤレス充電を同時に行える装置が望まれるところである。 In recent years, devices that perform wireless information communication in a contactless manner such as notebook personal computers, contactless IC cards, and RFID (Radio Frequency Identification) have become widespread. In addition, devices capable of wireless charging without contact, such as cordless phones and electric shavers, are becoming popular. Therefore, an apparatus capable of simultaneously performing such wireless communication and wireless charging is desired.
このようにワイヤレス情報通信とワイヤレス充電を同時に行う方法として、電界結合と磁界結合を使用することが一般的であり、この方法により実現している先行技術として、特許文献１と特許文献２がある。
特許文献１には、本体装置と，本体装置に非接触にデータの受け渡しを行うＩＣメモリカードよりなるＩＣメモリカードシステムにおいて，本体装置は，電源電力をＩＣメモリカードに供給する給電回路とＩＣメモリカードに誘導起電力により電力供給するコイルＡを備え，ＩＣメモリカードは本体装置のコイルＡと誘導的に結合して給電回路から供給される電力を受け取るコイルＢとコイルＢに接続される電源回路を備え，本体装置とＩＣメモリカードは，誘導結合による手段と異なる手段、例えば、コンデンサを利用した静電結合により非接触結合してデータの受け渡しを行う非接触結合手段（請求項３及び図２）を備えた構成を開示している。
また、特許文献２にも、ほぼ同様な構成が開示されている（図１〜４）。
As a method for performing wireless information communication and wireless charging at the same time, it is common to use electric field coupling and magnetic field coupling. As prior arts realized by this method, there are Patent Document 1 and Patent Document 2. .
In Patent Document 1, in an IC memory card system including a main body device and an IC memory card that transfers data to the main body in a non-contact manner, the main body device includes a power supply circuit that supplies power to the IC memory card and an IC memory. The card is provided with a coil A for supplying electric power by induced electromotive force, and the IC memory card is inductively coupled with the coil A of the main unit to receive power supplied from the power supply circuit and a power supply circuit connected to the coil B The main body device and the IC memory card are different from the means by inductive coupling, for example, non-contact coupling means for transferring data by non-contact coupling by electrostatic coupling using a capacitor (claims 3 and 2). ) Is disclosed.
Patent Document 2 also discloses a substantially similar configuration (FIGS. 1 to 4).
しかし、最近は通信のより高速化、電源のより高容量化、充電の高速化に加え、装置のより小型化、コンパクト化が求められているが、特に、小型化・コンパクト化する装置においては、ワイヤレス充電を行うために発生させる磁界が、ワイヤレス情報通信を行うために発生させる電界に電磁干渉を与えることが問題となる。すなわち、磁界を発生させる例えばコイルと電界を発生させる例えば電極を近接させると、互いに干渉しあい、特に磁界が電界に与える干渉が大きく、情報通信の効率が低下し通信速度が低速になったり、電極で発熱するなどの問題がある。
そこで、本発明は、上記問題に鑑みてなされたものであり、本発明の目的とするところは、磁界結合と電界結合間の干渉を最小限にし、電力の伝送と効率のよい情報伝送を同時に行う装置、システム、及び方法を提供することにある。
However, recently, in addition to higher communication speed, higher power supply capacity, and higher charge speed, there has been a demand for smaller and more compact devices. Especially in devices that are smaller and more compact. The problem is that the magnetic field generated for wireless charging gives electromagnetic interference to the electric field generated for wireless information communication. That is, for example, when a coil that generates a magnetic field and an electrode that generates an electric field are brought close to each other, they interfere with each other, particularly the interference that the magnetic field gives to the electric field is large, the efficiency of information communication decreases, the communication speed decreases, and the electrodes There are problems such as heat generation.
Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to minimize interference between magnetic field coupling and electric field coupling, and simultaneously transmit power and efficiently transmit information. It is to provide an apparatus, system and method for performing.
上記課題を解決するために、本発明のある観点によれば、磁界結合により非接触で電力を送受する電力送受中空コイル部と、電界結合により非接触で通信を行う通信電極部と、を有し、前記通信電極部の電極面を含む平面と前記電力送受中空コイル部のコイル軸とが略垂直に交わり、前記電極面の一部が、コイル軸方向視で、前記電力送受中空コイル部の中空部分と重ならず、かつ、前記電力送受中空コイル部のコイル面と重なるように配置されることを特徴とする電力情報伝送装置が提供される。
なお、ここで言う略垂直とは、完全な垂直である必要はなく、非接触で電力と情報をやり取りするための磁界結合の磁界と電界結合の電界との間の干渉を無視しうる程度の垂直を意味する。
この構成によれば、磁界結合と電界結合間の干渉を最小限にし、電力の伝送と効率のよい情報伝送を同時に行う電力情報伝送装置を提供することが可能となる。
In order to solve the above problems, according to an aspect of the present invention, there is provided a power transmission / reception hollow coil portion that transmits and receives power in a contactless manner by magnetic field coupling, and a communication electrode portion that performs contactless communication by electric field coupling. And the plane including the electrode surface of the communication electrode portion and the coil axis of the power transmission / reception hollow coil portion intersect substantially perpendicularly, and a part of the electrode surface of the power transmission / reception hollow coil portion is viewed in the coil axial direction. Provided is a power information transmission device that is arranged so as not to overlap a hollow portion and to overlap a coil surface of the power transmission / reception hollow coil portion.
Note that the term “substantially vertical” as used herein does not need to be completely vertical, and the interference between the magnetic field of magnetic field coupling and the electric field of electric field coupling for exchanging power and information in a non-contact manner can be ignored. Means vertical.
According to this configuration, it is possible to provide a power information transmission apparatus that minimizes interference between magnetic field coupling and electric field coupling, and simultaneously performs power transmission and efficient information transmission.
また、前記通信電極部は、前記電力送受中空コイル部の前記中空部分の径以上の径を有する開口部を有し、前記中空部分の全体が、コイル軸方向視で、前記開口部と重なるように配置され、前記通信電極部は、前記開口部と前記通信電極部の外周とを結ぶ１または２以上のスリットを有することを特徴としてもよい。
この構成によれば、さらに、通信電極部において、交差する磁束による渦電流を発生しにくくし、発熱を最小化することができる。
Further, the communication electrode portion has an opening having a diameter equal to or larger than the diameter of the hollow portion of the power transmission / reception hollow coil portion, and the entire hollow portion overlaps with the opening in a coil axial direction view. The communication electrode part may have one or more slits that connect the opening and the outer periphery of the communication electrode part.
According to this configuration, it is further difficult to generate eddy currents due to intersecting magnetic fluxes in the communication electrode section, and heat generation can be minimized.
また、前記スリットは、さらに、前記開口部と前記通信電極部の外周との間に前記開口部を囲むようにしてなることを特徴としてもよい。
この構成によれば、伝送相手の電力情報伝送装置との位置合わせにおいて、ねじれの方向の位置合わせが不要となる。
In addition, the slit may further be configured to surround the opening between the opening and the outer periphery of the communication electrode part.
According to this configuration, in the alignment with the power information transmission apparatus of the transmission partner, alignment in the direction of twist is not necessary.
また、前記２以上のスリットを有する電力情報伝送装置において、前記スリットにより分割される通信電極部の一を基準電位とし、他を信号電位とすることを特徴としてもよい。
この構成によれば、電力情報伝送装置間の情報伝送の効率を上げることが可能となる。
In the power information transmission device having the two or more slits, one of the communication electrode portions divided by the slit may be a reference potential and the other may be a signal potential.
According to this configuration, it is possible to increase the efficiency of information transmission between power information transmission apparatuses.
また、前期電力送受中空コイル部が、扁平コイルであることを特徴としてもよい。
この構成によれば、薄型の電力情報伝送装置が可能となる。
Further, the power transmission / reception hollow coil portion may be a flat coil.
According to this configuration, a thin power information transmission device is possible.
また、本発明の別の観点によれば、上記に記載の電力情報伝送装置を用いた電力情報伝送システムであって、第一の電力情報伝送装置と第二の電力情報伝送装置のそれぞれの電力送受中空コイル部のコイル軸が略同一軸線上に配置され、前記第一の電力情報伝送装置と前記第二の電力情報伝送装置のそれぞれの通信電極部の電極面が互いに対向するように配置され、前記第一の電力情報伝送装置の前記電力送受中空コイル部は、前記第二の電力情報伝送装置の前記電力送受中空コイル部と磁界結合を行うために磁界を発生させ、前記第一の電力情報伝送装置の前記通信電極部または前記第二の電力情報伝送装置の前記通信電極部の一方は、他方の電力情報伝送装置の前記通信電極部と電界結合を行うために電界を発生させることを特徴とする電力情報伝送システムが提供される。
なお、ここで言う略同一軸線とは、完全な同一軸線である必要はなく、非接触で電力と情報をやり取りするための磁界結合の磁界と電界結合の電界との間の干渉を無視しうる程度の同一軸線を意味する。
この構成によれば、磁界結合と電界結合間の干渉を最小限にし、電力の伝送と効率のよい情報伝送を同時に行う電力情報伝送システムを提供することが可能となる。
According to another aspect of the present invention, there is provided a power information transmission system using the power information transmission device described above, wherein each power of the first power information transmission device and the second power information transmission device. The coil shafts of the transmission / reception hollow coil portions are arranged on substantially the same axis, and the electrode surfaces of the communication electrode portions of the first power information transmission device and the second power information transmission device are arranged to face each other. The power transmission / reception hollow coil portion of the first power information transmission device generates a magnetic field to perform magnetic field coupling with the power transmission / reception hollow coil portion of the second power information transmission device, and the first power information transmission device One of the communication electrode unit of the information transmission device or the communication electrode unit of the second power information transmission device generates an electric field to perform electric field coupling with the communication electrode unit of the other power information transmission device. Characterize Force information transmission system is provided.
In addition, the substantially same axis line here does not need to be completely the same axis line, and interference between a magnetic field of magnetic field coupling and an electric field of electric field coupling for exchanging power and information in a non-contact manner can be ignored. Means the same axis.
According to this configuration, it is possible to provide a power information transmission system that minimizes interference between magnetic field coupling and electric field coupling and simultaneously performs power transmission and efficient information transmission.
さらに、本発明の別の観点によれば、２つの電力情報伝送装置の間で非接触で、磁界結合により電力を送受し、かつ電界結合により通信を行う電力情報伝送方法であって、第一の前記電力情報伝送装置は、第二の前記電力情報伝送装置と磁界結合を行うために磁界を発生させ、前記第一の前記電力情報伝送装置または前記第二の前記電力情報伝送装置の一方は、他方の前記電力情報伝送装置と電界結合を行うために電界を発生させ、前記第一の前記電力情報伝送装置と前記第二の前記電力情報伝送装置との間の前記電界の電気力線が、前記第二の前記電力情報伝送装置と前記第二の前記電力情報伝送装置との間の前記磁界の磁束に重ならないことを特徴とする電力情報伝達方法が提供される。
この構成によれば、磁界結合と電界結合間の干渉を最小限にし、電力の伝送と効率のよい情報伝送を同時に行う電力情報伝送方法を提供することが可能となる。
Furthermore, according to another aspect of the present invention, there is provided a power information transmission method in which power is transmitted and received by magnetic field coupling between two power information transmission devices and communication is performed by electric field coupling, The power information transmission device generates a magnetic field for magnetic field coupling with the second power information transmission device, and one of the first power information transmission device or the second power information transmission device is An electric field is generated for electric field coupling with the other power information transmission device, and an electric field line of the electric field between the first power information transmission device and the second power information transmission device is A power information transmission method is provided that does not overlap the magnetic flux of the magnetic field between the second power information transmission device and the second power information transmission device.
According to this configuration, it is possible to provide a power information transmission method that minimizes interference between magnetic field coupling and electric field coupling, and simultaneously performs power transmission and efficient information transmission.
以上説明したように、本発明によれば、小型化・コンパクト化が必要な装置においても、磁界結合と電界結合間の干渉を最小限にし、電力の伝送と効率のよい情報伝送を同時に行うことができる。
また、非接触で電力伝送及び通信を行うことができるため、２つの電力情報伝送装置の間に遮蔽物（皮膚などを含む）があっても効果が減じられることもない。
As described above, according to the present invention, even in an apparatus that requires downsizing and compactness, interference between magnetic field coupling and electric field coupling can be minimized, and power transmission and efficient information transmission can be performed simultaneously. Can do.
In addition, since power transmission and communication can be performed in a non-contact manner, even if there is a shield (including skin) between the two power information transmission devices, the effect is not reduced.
以下では、図面を参照しながら、本発明の各実施形態に係る装置等について説明する。
＜第１実施形態＞
図１は、電力情報伝送システムについての本実施形態に係る基本的な構成を説明するものである。この電力情報伝送システム１は、２つの電力情報伝送装置１０からなっている。ここでは、説明の便宜上、左の電力情報伝送装置１０を送信側電力情報伝送装置１１、右の電力情報伝送装置１０を受信側電力情報伝送装置１２とする。
Below, the apparatus etc. which concern on each embodiment of this invention are demonstrated, referring drawings.
<First Embodiment>
FIG. 1 illustrates a basic configuration according to this embodiment of the power information transmission system. The power information transmission system 1 includes two power information transmission apparatuses 10. Here, for convenience of explanation, the left power information transmission device 10 is referred to as a transmission side power information transmission device 11, and the right power information transmission device 10 is referred to as a reception side power information transmission device 12.
送信側電力情報伝送装置１１は、電力送受中空コイル部１００、通信電極部１１０、電源部１２０、変調器１４０、マイクロコンピュータ１６０を備えている。電源部１２０は交流電源からなり、電源部１２０と電力送受中空コイル部１００は接続され、電力送受中空コイル部１００は電源部１２０から電力を供給され、電力送受中空コイル部１００には交流電流が流れる。通信電極部１１０、変調器１４０、及びマイクロコンピュータ１６０が直列に接続され、マイクロコンピュータ１６０が送信情報を生成し、その送信情報を変調器１４０が所定の変調方式により変調し、その変調された信号が通信電極部１１０に供給される。 The transmission-side power information transmission device 11 includes a power transmission / reception hollow coil unit 100, a communication electrode unit 110, a power source unit 120, a modulator 140, and a microcomputer 160. The power supply unit 120 is composed of an AC power supply, the power supply unit 120 and the power transmission / reception hollow coil unit 100 are connected, the power transmission / reception hollow coil unit 100 is supplied with power from the power supply unit 120, and the power transmission / reception hollow coil unit 100 receives an AC current. Flowing. The communication electrode unit 110, the modulator 140, and the microcomputer 160 are connected in series, the microcomputer 160 generates transmission information, the modulator 140 modulates the transmission information by a predetermined modulation method, and the modulated signal Is supplied to the communication electrode unit 110.
受信側電力情報伝送装置１２は、電力送受中空コイル部１００、通信電極部１１０、充電部１３０、復調器１５０、マイクロコンピュータ１６０、および機器（負荷）１７０を備えている。電力送受中空コイル部１００と充電部１３０は接続され、後述するように、送信側電力情報伝送装置１１の電力送受中空コイル部１００との磁界結合により、電力送受中空コイル部１００に発生した電力を充電部１３０に充電できる。機器１７０は、その充電部１３０に接続され、充電された電力を使用できる。通信電極部１１０、復調器１５０、及びマイクロコンピュータ１６０が直列に接続され、後述するように、送信側電力情報伝送装置１１の通信電極部１１０との電界結合により通信電極部１１０で受信した信号情報は、復調器１５０で復調され、マイクロコンピュータ１６０に渡され、受信情報として使用され、情報通信が成立する。 The reception-side power information transmission device 12 includes a power transmission / reception hollow coil unit 100, a communication electrode unit 110, a charging unit 130, a demodulator 150, a microcomputer 160, and a device (load) 170. The power transmission / reception hollow coil unit 100 and the charging unit 130 are connected, and the power generated in the power transmission / reception hollow coil unit 100 by magnetic field coupling with the power transmission / reception hollow coil unit 100 of the transmission-side power information transmission device 11 as described later. The charging unit 130 can be charged. The device 170 is connected to the charging unit 130 and can use the charged power. The communication electrode unit 110, the demodulator 150, and the microcomputer 160 are connected in series, and signal information received by the communication electrode unit 110 by electric field coupling with the communication electrode unit 110 of the transmission-side power information transmission device 11, as will be described later. Is demodulated by the demodulator 150, passed to the microcomputer 160 and used as received information, and information communication is established.
送信側電力情報伝送装置１１の電力送受中空コイル部１００は、受信側電力情報伝送装置１２の電力送受中空コイル部１００と磁界結合を行うために磁界を発生させるが、送信側電力情報伝送装置１１の電力送受中空コイル部１００と、受信側電力情報伝送装置１２の電力送受中空コイル部１００は、互いのコイル軸１０１がほぼ同一軸線上になるように配置される。これにより、効率のよい磁界結合が行われる。 The power transmission / reception hollow coil unit 100 of the transmission-side power information transmission device 11 generates a magnetic field to perform magnetic field coupling with the power transmission / reception hollow coil unit 100 of the reception-side power information transmission device 12. The power transmission / reception hollow coil unit 100 and the power transmission / reception hollow coil unit 100 of the reception-side power information transmission device 12 are arranged such that the coil axes 101 are substantially on the same axis. Thereby, efficient magnetic field coupling is performed.
送信側電力情報伝送装置１１の通信電極部１１０は、受信側電力情報伝送装置１２の通信電極部１１０と電界結合を行うために電界を発生させるが、送信側電力情報伝送装置１１の通信電極部１１０と、受信側電力情報伝送装置１２の通信電極部１１０は、互いに対向して配置される。これにより、効率のよい電界結合が行われる。また、受信側電力情報伝送装置１２から情報を送信する場合は、送信側電力情報伝送装置１１からではなく、受信側電力情報伝送装置１２の通信電極部１１０が、送信側電力情報伝送装置１１の通信電極部１１０と電界結合を行うために電界を発生させる。これにより、双方向の情報通信が可能となる。なお、双方向の情報通信は、時分割方式や周波数分割方式などにより可能である。 The communication electrode unit 110 of the transmission-side power information transmission device 11 generates an electric field to perform electric field coupling with the communication electrode unit 110 of the reception-side power information transmission device 12, but the communication electrode unit of the transmission-side power information transmission device 11 110 and the communication electrode unit 110 of the reception-side power information transmission device 12 are arranged to face each other. Thereby, efficient electric field coupling is performed. Further, when transmitting information from the reception-side power information transmission device 12, the communication electrode unit 110 of the reception-side power information transmission device 12 is not connected to the transmission-side power information transmission device 11, not from the transmission-side power information transmission device 11. An electric field is generated for electric field coupling with the communication electrode unit 110. Thereby, bi-directional information communication is possible. Bidirectional information communication is possible by a time division method, a frequency division method, or the like.
図２は、この電力情報伝送システム１における電力情報伝送装置１０の電力送受中空コイル部１００と通信電極部１１０の構成を説明するものである。通信電極部１１０の電極面１１１と電力送受中空コイル部１００のコイル軸１０１は、コイル軸１０１が電極面１１１を含む平面にほぼ垂直である関係を有して配置される。換言すれば、電力送受中空コイル部１００のコイル面１０３と通信電極部１１０の電極面１１１とが平行である関係を有して配置される。また、コイル軸方向から見た場合において、通信電極部１１０の一部分が、電力送受中空コイル部１００の中空部分１０２と重ならないように配置される。これにより、電力送受中空コイル部１００で生じる中空部分１０２での磁束が、通信電極部１１０に交差することがなくなるので、電力伝送に与える影響を抑えることができ、換言すれば、磁界結合と電界結合の干渉を最小限に抑えることができ、効率のよい電力転送と情報通信を行うことができ、また、通信電極部１１０での発熱などを防ぐことができる。また、コイル軸方向から見た場合において、通信電極部１１０の一部分が、電力送受中空コイル部１００のコイル面１０３と重なるように配置される。好ましくは、図２に示すように、コイル軸方向から見た場合において、電力送受中空コイル部１００の径と通信電極部１１０の径がほぼ一致しているとよい。電力送受中空コイル部１００の外側の磁束が、通信電極部１１０に交差することがなくなるので、上記と同様な効果を得ることが可能となる。 FIG. 2 illustrates the configuration of the power transmission / reception hollow coil unit 100 and the communication electrode unit 110 of the power information transmission device 10 in the power information transmission system 1. The electrode surface 111 of the communication electrode unit 110 and the coil shaft 101 of the power transmission / reception hollow coil unit 100 are disposed so that the coil shaft 101 is substantially perpendicular to a plane including the electrode surface 111. In other words, the coil surface 103 of the power transmission / reception hollow coil unit 100 and the electrode surface 111 of the communication electrode unit 110 are arranged in a parallel relationship. Further, when viewed from the coil axis direction, a part of the communication electrode part 110 is arranged so as not to overlap the hollow part 102 of the power transmission / reception hollow coil part 100. Thereby, since the magnetic flux in the hollow portion 102 generated in the power transmission / reception hollow coil portion 100 does not cross the communication electrode portion 110, the influence on the power transmission can be suppressed, in other words, the magnetic field coupling and the electric field. Coupling interference can be minimized, efficient power transfer and information communication can be performed, and heat generation at the communication electrode unit 110 can be prevented. Further, when viewed from the coil axis direction, a part of the communication electrode portion 110 is disposed so as to overlap the coil surface 103 of the power transmission / reception hollow coil portion 100. Preferably, as shown in FIG. 2, when viewed from the coil axis direction, the diameter of the power transmission / reception hollow coil portion 100 and the diameter of the communication electrode portion 110 may be substantially the same. Since the magnetic flux outside the power transmission / reception hollow coil portion 100 does not cross the communication electrode portion 110, the same effect as described above can be obtained.
図３は、電力情報伝送装置１０の通信電極部１１０の構造を説明するものである。図３Dに示すような開口部やスリットをまったく有さない通信電極部と図３Fに示すような開口部を有さない通信電極部は、電力送受中空コイル部１００で生じる中空部分１０２での磁束が、通信電極部１１０に交差するので、電力伝送に与える影響が大きくなる。また、図３Eに示すようなスリットを有さない通信電極部は、上記磁束により渦電流が生じ、電力伝送に与える影響が大きくなるとともに、通信電極部に熱が発生する原因となる。 FIG. 3 illustrates the structure of the communication electrode unit 110 of the power information transmission apparatus 10. A communication electrode portion having no opening or slit as shown in FIG. 3D and a communication electrode portion having no opening as shown in FIG. 3F are magnetic fluxes in the hollow portion 102 generated in the power transmission / reception hollow coil portion 100. However, since it intersects with the communication electrode unit 110, the influence on the power transmission is increased. Further, in the communication electrode portion having no slit as shown in FIG. 3E, an eddy current is generated by the magnetic flux, and the influence on the power transmission is increased, and heat is generated in the communication electrode portion.
図３A、３B、３Cは、かかる問題を解決した構造を示す。まず、すべてにおいて、通信電極部１１０は、電力送受中空コイル部１００の中空部分１０２の径以上の径を有する開口部１１２を有し、かつ、図３Aでは、開口部１１２と外周１１３を結ぶ一つのスリット１１４を有する通信電極部１１０の構造を、図３Bでは、開口部１１２と外周１１３を結ぶ二つのスリット１１４を有する通信電極部１１０の構造を示す。通信電極部１１０がかかる構造を有することにより、上記問題を解決することができる。なお、２つの電力情報伝送装置１０の間でアースを共通にすることができる場合は、基準電位を別に設ける必要がないので図３Aの構造を使用することができる。 3A, 3B, and 3C show structures that solve this problem. First, in all, the communication electrode part 110 has an opening part 112 having a diameter equal to or larger than the diameter of the hollow part 102 of the power transmission / reception hollow coil part 100, and in FIG. The structure of the communication electrode unit 110 having two slits 114 is shown in FIG. 3B, and the structure of the communication electrode unit 110 having two slits 114 connecting the opening 112 and the outer periphery 113 is shown. When the communication electrode unit 110 has such a structure, the above problem can be solved. If the ground can be shared between the two power information transmission apparatuses 10, it is not necessary to separately provide a reference potential, so the structure of FIG. 3A can be used.
また、図３Cでは、電力送受中空コイル部１００の中空部分１０２の径以上の径を有する開口部１１２を有するともに、開口部１１２と通信電極部１１０の外周１１３との間に、開口部１１２を囲むようにしてなるスリット１１４を有する通信電極部１１０を示す。好ましくは、開口部１１２を囲むスリット１１４と開口部１１２が同心円状にしてなるとよい。これにより、図３A、３Bに示す通信電極部１１０は、相手方の電力情報伝送装置１０の通信電極部１１０と位置合わせをする際、ねじれの方向にも位置合わせが必要だが、この図３Cに示す通信電極部１１０は、それが不要となる。 Further, in FIG. 3C, an opening 112 having a diameter equal to or larger than the diameter of the hollow portion 102 of the power transmission / reception hollow coil unit 100 is provided, and the opening 112 is provided between the opening 112 and the outer periphery 113 of the communication electrode unit 110. The communication electrode part 110 which has the slit 114 made to enclose is shown. Preferably, the slit 114 surrounding the opening 112 and the opening 112 are concentric. As a result, the communication electrode unit 110 shown in FIGS. 3A and 3B needs to be aligned in the twist direction when aligning with the communication electrode unit 110 of the counterpart power information transmission apparatus 10, but this is shown in FIG. 3C. The communication electrode unit 110 is not necessary.
なお、スリット１１４が２つある場合、換言すれば、通信電極部１１０が２つの電極からなる場合、その電極の１つを基準電位、もう１つを信号電位とすることにより、情報伝送の効率をあげることができる。また、スリット１１４が３つ以上ある場合、その電極の１つを基準電位、その他の電極を複数の異なった信号電位とすることにより、情報伝送の効率をあげるとともに、複数の信号を同時に通信することができる。 When there are two slits 114, in other words, when the communication electrode unit 110 includes two electrodes, the efficiency of information transmission can be improved by using one of the electrodes as a reference potential and the other as a signal potential. Can give. When there are three or more slits 114, one of the electrodes is set to a reference potential and the other electrodes are set to a plurality of different signal potentials, thereby improving the efficiency of information transmission and simultaneously transmitting a plurality of signals. be able to.
また、電力情報伝送装置１０の電力送受中空コイル部１００は、扁平コイルであってもよい。より薄い電力情報伝送装置１０が可能となる。 Further, the power transmission / reception hollow coil portion 100 of the power information transmission apparatus 10 may be a flat coil. A thinner power information transmission apparatus 10 is possible.
図４は、本実施形態における効果を説明するものである。同図では、外形４０mm、内径１５mm、巻数３０回の電力送受中空コイル部１００と、外形４５mm、内径２０mm、巻数３０回の電力送受中空コイル部１００を対向させ、図３Aに示す通信電極部１１０（外形４０mm、内径２０mm、スリット幅１mm)を１枚だけ挿入し、電力送受中空コイル部１００と通信電極部１１０の間の間隔はそれぞれ１mmとし、間にＡＢＳ樹脂製の板を挿入した場合の電力伝送特性を示す。
開口部１１２とスリット１１４の両方がない通信電極部１１０（図３D）や、開口部１２０はあるがスリット１１４がない通信電極部１１０（図３E）を使用する場合（図示せず）、２つの電力送受中空コイル部の間に通信電極部がないときに比べて、電力の伝送損失はおよそ２４ｄBである。一方、開口部１１２とスリット１１４の両方がある通信電極部１１０（図３A、３B、３C）の場合は、その損失は３ｄＢ程度にまで低減させることができる。これは、開口部１１２を設けたことで、電力送受中空コイル部１００の中空部分１０２を通る磁束が通信電極部１１０に遮られることがなくなり、また、スリット１１４を設けることによって通信電極部１１０に渦電流が流れないようになるためである。従って、開口部１１２とスリット１１４を設けることにより、伝送損失が２０ｄＢ程度改善されることがわかる。
FIG. 4 explains the effect of this embodiment. In the figure, the power transmission / reception hollow coil portion 100 having an outer diameter of 40 mm, an inner diameter of 15 mm, and a winding number of 30 is opposed to the power transmission / reception hollow coil portion 100 having an outer shape of 45 mm, an inner diameter of 20 mm, and a winding number of 30, and the communication electrode portion 110 shown in FIG. When only one sheet (outer diameter 40 mm, inner diameter 20 mm, slit width 1 mm) is inserted, the distance between the power transmission / reception hollow coil part 100 and the communication electrode part 110 is 1 mm, and an ABS resin plate is inserted between them. The power transmission characteristics are shown.
When using the communication electrode part 110 (FIG. 3D) without both the opening 112 and the slit 114 and the communication electrode part 110 (FIG. 3E) with the opening 120 but without the slit 114 (not shown), two Compared to the case where there is no communication electrode portion between the power transmission / reception hollow coil portions, the power transmission loss is approximately 24 dB. On the other hand, in the case of the communication electrode portion 110 (FIGS. 3A, 3B, and 3C) having both the opening 112 and the slit 114, the loss can be reduced to about 3 dB. This is because the provision of the opening 112 prevents the magnetic flux passing through the hollow portion 102 of the power transmission / reception hollow coil unit 100 from being interrupted by the communication electrode unit 110, and the provision of the slit 114 allows the communication electrode unit 110 to This is because eddy currents do not flow. Therefore, it can be seen that the transmission loss is improved by about 20 dB by providing the opening 112 and the slit 114.
＜第２実施形態＞
図５は、本実施形態を示したシステムの模式図である。本実施形態では、ＤＡＣ２２０において、地上デジタル放送１チャンネル分（帯域幅約５．７MHz、情報量１６．８MbpsのOFDM(Orthogonal Frequency Division Multiplexing：直交周波数分割多重方式)信号）を０．３〜６MHzのベースバンド信号に変換した信号を用いて、ＬＥＤ２４０に電力を供給しながら、情報と電力の同時伝送を行った。なお、通信電極部１１０には、銅板コンデンサ２７０を設けることによりベースバンド信号が伝送され、受信された信号は、ＩＱ変調器２５０により復調され、チューナ２６０に渡され、モニタ（図示せず）に地上デジタル放送の画像が映し出される。これによれば、電力伝送下で、地上デジタル放送のハイビジョン動画の伝送が可能となる。
Second Embodiment
FIG. 5 is a schematic diagram of a system showing the present embodiment. In the present embodiment, the DAC 220 transmits a terrestrial digital broadcasting channel (OFDM (Orthogonal Frequency Division Multiplexing) signal) having a bandwidth of about 5.7 MHz and an information amount of 16.8 Mbps (0.3 to 6 MHz). Information and power were transmitted simultaneously while supplying power to the LED 240 using the signal converted into the baseband signal. The communication electrode unit 110 is provided with a copper plate capacitor 270 so that a baseband signal is transmitted. The received signal is demodulated by the IQ modulator 250, passed to the tuner 260, and sent to a monitor (not shown). Digital terrestrial broadcast images are displayed. According to this, high-definition moving image transmission of terrestrial digital broadcasting can be performed under power transmission.
＜第３実施形態＞
図６は、本発明に係る電力情報伝送装置を、ノート型パーソナルコンピュータ２００に対して適用した場合の模式図である。ノート型パーソナルコンピュータ２００は受信側電力情報伝送装置１２を、机２１０は送信側電力情報伝送装置１１を有している。同図に示すように、本電力情報伝送装置は、非接触で電力と情報を同時に伝送できるため、机２１０の上の所定の位置にノート型パーソナルコンピュータを置くだけで、電力が供給され、情報のやり取りができるようになる。従来のように、電源ケーブルやネットワークケーブルを接続する必要がなく、人の動きが多いような場所でも、ケーブルが邪魔にならず、また、ケーブルにつまずくなどの事故も軽減できる。
<Third Embodiment>
FIG. 6 is a schematic diagram when the power information transmission apparatus according to the present invention is applied to a notebook personal computer 200. The notebook personal computer 200 has a reception-side power information transmission device 12, and the desk 210 has a transmission-side power information transmission device 11. As shown in the figure, the power information transmission apparatus can transmit power and information simultaneously in a non-contact manner, so that power can be supplied simply by placing a notebook personal computer at a predetermined position on the desk 210. Can be exchanged. There is no need to connect a power cable or network cable as in the past, and the cable does not get in the way even in places where there is a lot of human movement, and accidents such as tripping over the cable can be reduced.
＜第４実施形態＞
図７は、本発明に係る電力情報伝送装置を、埋込型医療機器２８０に対して適用した場合の模式図である。埋込型医療機器２８０は、受信側電力情報伝送装置１２を有している。同図に示すように、本電力情報伝送装置１０は、非接触で電力を伝送できるため、体外に電極を露出することなく埋込型医療機器２８０を体内に設置することができ、使用者の身体への負担は少なくて済む。さらに、電力だけでなく、非接触で情報も伝送できるため、体内の機器に給電しながら情報をやり取りすることが可能になるので、血圧、脈拍などの情報を長期間記録したデータなどの受け渡しが可能となる。
使用者は、埋込型医療機器２８０に充電を行ったり、当機器から情報を取る場合には、当機器側の本受信側電力情報伝送装置１２と、電源側の本送信側電力情報伝送装置１１のコイル軸を合わせることにより、給電と情報収集が可能となる。
<Fourth embodiment>
FIG. 7 is a schematic diagram when the power information transmission apparatus according to the present invention is applied to the implantable medical device 280. The implantable medical device 280 includes the reception-side power information transmission device 12. As shown in the figure, since the power information transmission device 10 can transmit power without contact, the implantable medical device 280 can be installed inside the body without exposing the electrode to the outside of the user. Less burden on the body. Furthermore, since not only power but also information can be transmitted without contact, it is possible to exchange information while supplying power to devices in the body, so it is possible to exchange data such as blood pressure and pulse information recorded for a long period of time. It becomes possible.
When the user charges the implantable medical device 280 or obtains information from the device, the user side power information transmission device 12 on the device side and the power information transmission device on the power source side are transmitted. By aligning the 11 coil axes, power supply and information collection are possible.
１ 電力情報伝送システム
１０ 電力情報伝送装置
１１ 電力情報伝送装置（送信側）
１２ 電力情報伝送装置（受信側）
１００ 電力送受中空コイル部
１０１ コイル軸
１０２ 中空部分
１０３ コイル面
１１０ 通信電極部
１１１ 電極面
１１２ 開口部
１１３ 外周
１１４ スリット
１２０ 電源部
１３０ 充電部
１４０ 変調器
１５０ 復調器
１６０ マイクロコンピュータ
１７０ 機器（負荷）
２００ ノート型パーソナルコンピュータ
２１０ 机
２２０ デジタル・アナログ・コンバータ（ＤＡＣ）
２３０ ファンクションジェネレータ
２４０ ＬＥＤ
２５０ ＩＱ変調器
２６０ チューナ
２７０ 銅板コンデンサ
２８０ 埋込型医療機器
DESCRIPTION OF SYMBOLS 1 Power information transmission system 10 Power information transmission apparatus 11 Power information transmission apparatus (transmission side)
12 Power information transmission equipment (receiving side)
DESCRIPTION OF SYMBOLS 100 Electric power transmission / reception hollow coil part 101 Coil shaft 102 Hollow part 103 Coil surface 110 Communication electrode part 111 Electrode surface 112 Opening part 113 Outer periphery 114 Slit 120 Power supply part 130 Charging part 140 Modulator 150 Demodulator 160 Microcomputer 170 Equipment (load)
200 Notebook personal computer 210 Desk 220 Digital-to-analog converter (DAC)
230 Function generator 240 LED
250 IQ Modulator 260 Tuner 270 Copper Plate Capacitor 280 Implantable Medical Device
Claims (7)
電界結合により非接触で通信を行う通信電極部と、を有し、
前記通信電極部の電極面を含む平面と前記電力送受中空コイル部のコイル軸とが略垂直に交わり、
前記電極面の一部が、コイル軸方向視で、前記電力送受中空コイル部の中空部分と重ならず、かつ、前記電力送受中空コイル部のコイル面と重なるように配置されることを特徴とする電力情報伝送装置。 A power transmission / reception hollow coil portion for transmitting and receiving power in a non-contact manner by magnetic field coupling;
A communication electrode unit that performs non-contact communication by electric field coupling,
The plane including the electrode surface of the communication electrode portion and the coil axis of the power transmission / reception hollow coil portion intersect substantially perpendicularly,
A part of the electrode surface is arranged so as not to overlap a hollow portion of the power transmission / reception hollow coil portion and to a coil surface of the power transmission / reception hollow coil portion in a coil axial direction view. Power information transmission device.
前記中空部分の全体が、コイル軸方向視で、前記開口部と重なるように配置され、
前記通信電極部は、前記開口部と前記通信電極部の外周とを結ぶ１または２以上のスリットを有することを特徴とする請求項１に記載の電力情報伝送装置。 The communication electrode part has an opening having a diameter equal to or larger than the diameter of the hollow part of the power transmission / reception hollow coil part,
The entire hollow portion is arranged so as to overlap the opening in the coil axial direction view,
The power information transmission device according to claim 1, wherein the communication electrode unit includes one or more slits that connect the opening and an outer periphery of the communication electrode unit.
第一の電力情報伝送装置と第二の電力情報伝送装置のそれぞれの電力送受中空コイル部のコイル軸が略同一軸線上に配置され、
前記第一の電力情報伝送装置と前記第二の電力情報伝送装置のそれぞれの通信電極部の電極面が互いに対向するように配置され、
前記第一の電力情報伝送装置の前記電力送受中空コイル部は、前記第二の電力情報伝送装置の前記電力送受中空コイル部と磁界結合を行うために磁界を発生させ、
前記第一の電力情報伝送装置の前記通信電極部または前記第二の電力情報伝送装置の前記通信電極部の一方は、他方の電力情報伝送装置の前記通信電極部と電界結合を行うために電界を発生させることを特徴とする電力情報伝送システム。 A power information transmission system using the power information transmission device according to claim 1,
The coil shafts of the power transmission / reception hollow coil portions of the first power information transmission device and the second power information transmission device are arranged on substantially the same axis,
The electrode surfaces of the respective communication electrode portions of the first power information transmission device and the second power information transmission device are arranged to face each other,
The power transmission / reception hollow coil portion of the first power information transmission device generates a magnetic field to perform magnetic field coupling with the power transmission / reception hollow coil portion of the second power information transmission device,
One of the communication electrode unit of the first power information transmission device or the communication electrode unit of the second power information transmission device is configured to apply an electric field to perform electric field coupling with the communication electrode unit of the other power information transmission device. The power information transmission system characterized by generating.
第一の前記電力情報伝送装置は、第二の前記電力情報伝送装置と磁界結合を行うために磁界を発生させ、
前記第一の前記電力情報伝送装置または前記第二の前記電力情報伝送装置の一方は、他方の前記電力情報伝送装置と電界結合を行うために電界を発生させ、
前記第一の前記電力情報伝送装置と前記第二の前記電力情報伝送装置との間の前記電界の電気力線が、前記第二の前記電力情報伝送装置と前記第二の前記電力情報伝送装置との間の前記磁界の磁束に重ならないことを特徴とする電力情報伝達方法。 A power information transmission method for transmitting and receiving power by magnetic field coupling and communicating by electric field coupling in a non-contact manner between two power information transmission devices,
The first power information transmission device generates a magnetic field to perform magnetic field coupling with the second power information transmission device,
One of the first power information transmission device or the second power information transmission device generates an electric field to perform electric field coupling with the other power information transmission device,
The electric field lines of the electric field between the first power information transmission device and the second power information transmission device are the second power information transmission device and the second power information transmission device. A power information transmission method characterized by not overlapping with the magnetic flux of the magnetic field between the two.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009225278A JP2012253398A (en) | 2009-09-29 | 2009-09-29 | Device, system, and method for transmitting power and information |
| PCT/JP2010/066787 WO2011040392A1 (en) | 2009-09-29 | 2010-09-28 | Device, system, and method for transmitting electric power and information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009225278A JP2012253398A (en) | 2009-09-29 | 2009-09-29 | Device, system, and method for transmitting power and information |
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| Publication Number | Publication Date |
|---|---|
| JP2012253398A true JP2012253398A (en) | 2012-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009225278A Pending JP2012253398A (en) | 2009-09-29 | 2009-09-29 | Device, system, and method for transmitting power and information |
Country Status (2)
| Country | Link |
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| JP (1) | JP2012253398A (en) |
| WO (1) | WO2011040392A1 (en) |
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| US9166286B2 (en) | 2013-03-29 | 2015-10-20 | Panasonic Intellectual Property Management Co., Ltd. | Communication device |
| JP2017041594A (en) * | 2015-08-21 | 2017-02-23 | 矢崎総業株式会社 | Power transmission communication unit |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2011040392A1 (en) | 2011-04-07 |
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