JP2015027187A - Non-contact charging system, and charger and electronic equipment for use in the same - Google Patents

Non-contact charging system, and charger and electronic equipment for use in the same Download PDF

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JP2015027187A
JP2015027187A JP2013155648A JP2013155648A JP2015027187A JP 2015027187 A JP2015027187 A JP 2015027187A JP 2013155648 A JP2013155648 A JP 2013155648A JP 2013155648 A JP2013155648 A JP 2013155648A JP 2015027187 A JP2015027187 A JP 2015027187A
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magnetic field
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transmission
activation signal
charger
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山崎 康之
Yasuyuki Yamazaki
康之 山崎
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NEC Platforms Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a non-contact charging system for performing power supply through transmission/reception of a magnetic field, in which efficient power supply is realized by individually optimizing transmission/reception of power supply and a command and suppressing mutual interference.SOLUTION: A non-contact charging system according to the present invention includes: a charger that transmits a magnetic field for supplying electric power; and electronic equipment that receives the electric power through reception of the magnetic field. The charger includes: a transmission unit for transmitting the magnetic field; and a transmission/reception unit for transmitting a recognition signal to the electronic equipment and receiving an activation signal transmitted from the electronic equipment. The electronic equipment includes: a reception unit for receiving the magnetic field; and a reception/transmission unit for receiving the recognition signal and transmitting the activation signal. The charger transmits the magnetic field on the basis of the activation signal and the electronic equipment receives the magnetic field on the basis of the recognition signal.

Description

本発明は、電磁誘導を利用して携帯端末などの電子機器の電池に非接触で給電する、非接触充電システムおよびこれに用いる充電器と電子機器に関する。   The present invention relates to a non-contact charging system that uses electromagnetic induction to supply power to a battery of an electronic device such as a portable terminal in a non-contact manner, and a charger and an electronic device used therefor.

近年、スマートフォン等の多機能携帯端末は、表示部の大画面化やバックグラウンドで通信するアプリケーションの使用などによる消費電力の増大により、電池の頻繁な充電を必要としている。携帯端末の充電はケーブルにより接続して行う方式が一般的であるが、ケーブルの煩わしさを解消するために、非接触ワイヤレス充電の要求が高まっている。   In recent years, multifunctional portable terminals such as smartphones require frequent charging of batteries due to an increase in power consumption due to an increase in screen size of a display unit or use of an application communicating in the background. In general, charging of a mobile terminal is performed by connecting with a cable, but in order to eliminate the troublesomeness of the cable, there is an increasing demand for non-contact wireless charging.

非接触ワイヤレス充電システムとしては、特許文献1に開示された充電システムがある。この充電システムは、携帯電話と携帯電話を非接触方式で充電する非接触充電器とから構成され、携帯電話が充電完了を示す満充電コマンドを送信し、当該満充電コマンドの受信とともに、非接触充電器は携帯電話への充電を行なわない充電停止状態に移行することにより、充電時の電力消費の抑制や安全対策が可能となるとしている。   As a non-contact wireless charging system, there is a charging system disclosed in Patent Document 1. This charging system is composed of a mobile phone and a non-contact charger that charges the mobile phone in a non-contact manner, and the mobile phone transmits a full charge command indicating the completion of charging, and receives the full charge command and contactlessly The charger is said to be capable of suppressing power consumption during charging and taking safety measures by shifting to a charging stop state in which charging of the mobile phone is not performed.

再特WO2008/056415号公報Re-specialized WO2008 / 056415

しかしながら、特許文献1の非接触ワイヤレス充電システムには、以下のような課題があった。すなわち、非接触充電器から携帯電話への電力供給と、非接触充電器と携帯電話との間のコマンドの送受信とが、各々の機器の有する一つのコイルにより行われていた。そのため、電力供給とコマンドの送受信の各々の最適化が難しく、また、電力供給とコマンドの送受信との相互の干渉により、電力供給やコマンドの送受信の性能劣化を生じていた。   However, the non-contact wireless charging system of Patent Document 1 has the following problems. That is, power supply from the non-contact charger to the mobile phone and transmission / reception of commands between the non-contact charger and the mobile phone are performed by one coil of each device. For this reason, it is difficult to optimize power supply and command transmission / reception, and power supply and command transmission / reception performance degradation is caused by mutual interference between power supply and command transmission / reception.

本発明は、上記の課題に鑑みてなされたものであり、その目的は、電磁誘導を利用した充電器が携帯端末などの電子機器の電池に非接触で給電する非接触充電システムにおいて、電力供給とコマンドの送受信の各々の最適化が可能であり、電力供給とコマンドの送受信の相互の干渉の抑制された非接触充電システムを提供することである。   The present invention has been made in view of the above problems, and an object of the present invention is to provide power supply in a contactless charging system in which a charger using electromagnetic induction supplies power to a battery of an electronic device such as a portable terminal in a contactless manner. It is possible to provide a non-contact charging system that can optimize transmission / reception of commands and suppress mutual interference between power supply and transmission / reception of commands.

本発明の非接触充電システムは、電力を供給する磁界を送信する充電器と、前記磁界の受信により前記電力を受給する電子機器と、を備えた非接触充電システムにおいて、前記充電器は、前記磁界を送信する送信部と、前記電子機器に認識信号を送信し前記電子機器から送信される起動信号を受信する送受信部と、を有し、前記電子機器は、前記磁界を受信する受信部と、前記認識信号を受信し前記起動信号を送信する受送信部と、を有し、前記充電器は前記起動信号に基づいて前記磁界を送信し、前記電子機器は前記認識信号に基づいて前記磁界を受信することを特徴とする。   The contactless charging system of the present invention is a contactless charging system comprising: a charger that transmits a magnetic field that supplies electric power; and an electronic device that receives the electric power by receiving the magnetic field. A transmission unit that transmits a magnetic field, and a transmission / reception unit that transmits a recognition signal to the electronic device and receives an activation signal transmitted from the electronic device, the electronic device receiving a magnetic field; A transmitter / receiver that receives the recognition signal and transmits the activation signal, wherein the charger transmits the magnetic field based on the activation signal, and the electronic device transmits the magnetic field based on the recognition signal. Is received.

本発明の充電器は、電力を供給する磁界を送受信することによって充電を行う非接触充電システムに用いる充電器において、前記充電器は、電力を供給する磁界を送信する送信部と、前記電力を供給する電子機器に認識信号を送信し、前記電子機器から送信される起動信号を受信する、送受信部と、を備え、前記起動信号に基づいて前記磁界を送信することを特徴とする。   The charger according to the present invention is a charger used in a non-contact charging system that performs charging by transmitting and receiving a magnetic field that supplies electric power, wherein the charger transmits a magnetic field that supplies electric power and the electric power. A transmission / reception unit that transmits a recognition signal to an electronic device to be supplied and receives an activation signal transmitted from the electronic device, and transmits the magnetic field based on the activation signal.

本発明の電子機器は、電力を供給する磁界を送受信することによって充電を行う非接触充電システムに用いる電子機器において、前記電子機器は、電力を供給する磁界を受信する受信部と、前記電力を供給する充電器から送信される認識信号を受信し、前記充電器に起動信号を送信する、受送信部と、を備え、前記認識信号に基づいて前記磁界を受信することを特徴とする。   The electronic device of the present invention is an electronic device used in a non-contact charging system that performs charging by transmitting and receiving a magnetic field that supplies electric power, wherein the electronic device receives a magnetic field that supplies electric power, and the electric power A receiving / transmitting unit that receives a recognition signal transmitted from a charger to be supplied and transmits an activation signal to the charger, and receives the magnetic field based on the recognition signal.

本発明によれば、電磁誘導を利用した充電器が携帯端末などの電子機器の電池に非接触で給電する非接触充電システムにおいて、電力供給とコマンドの送受信の各々の最適化が可能であり、電力供給とコマンドの送受信の相互の干渉の抑制された非接触充電システムが実現する。これにより、磁界によるクレジットカードや心臓ペースメーカ等への影響が軽減され、ユーザの充電に対する負担の軽減された非接触充電システムが実現する。   According to the present invention, in a non-contact charging system in which a charger using electromagnetic induction supplies power to a battery of an electronic device such as a portable terminal in a non-contact manner, each of power supply and command transmission / reception can be optimized. A non-contact charging system in which mutual interference between power supply and command transmission / reception is suppressed is realized. Thereby, the influence on a credit card, a cardiac pacemaker, etc. by a magnetic field is reduced, and the non-contact charge system with which the burden with respect to charge of a user was reduced is implement | achieved.

本発明の第1の実施形態の非接触充電システムに用いる電力供給を行う充電器である磁界発生機の構成図である。1 is a configuration diagram of a magnetic field generator that is a charger that supplies electric power used in the contactless charging system according to the first embodiment of the present invention. FIG. 本発明の第1の実施形態の非接触充電システムに用いる電力供給を受ける電子機器である受信携帯端末の構成図である。FIG. 3 is a configuration diagram of a receiving portable terminal that is an electronic device that receives power supply used in the contactless charging system according to the first embodiment of the present invention. 本発明の第1の実施形態の磁界発生機の動作を説明したフローチャートである。3 is a flowchart illustrating the operation of the magnetic field generator according to the first embodiment of the present invention. 本発明の第1の実施形態の受信携帯端末の動作を説明したフローチャートである。5 is a flowchart illustrating the operation of the receiving portable terminal according to the first embodiment of the present invention. 本発明の第1の実施形態の認識信号受信無線部219、及び起動信号送信無線部222の間欠動作を説明する図である。It is a figure explaining the intermittent operation | movement of the recognition signal reception radio | wireless part 219 and the starting signal transmission radio | wireless part 222 of the 1st Embodiment of this invention. 本発明の第1の実施形態のオートチューン回路部202のインピーダンスコントロールを行う動作を説明したフローチャートである。5 is a flowchart illustrating an operation of performing impedance control of the autotune circuit unit 202 according to the first embodiment of this invention. 本発明の第1の実施形態の非接触充電システムの磁界発生機10と受信携帯端末20との配置例を示す図である。It is a figure which shows the example of arrangement | positioning with the magnetic field generator 10 and the receiving portable terminal 20 of the non-contact charge system of the 1st Embodiment of this invention. 本発明の第1の実施形態の非接触充電システムに用いる電力供給を受ける電子機器である受信携帯端末の構成図である。FIG. 3 is a configuration diagram of a receiving portable terminal that is an electronic device that receives power supply used in the contactless charging system according to the first embodiment of the present invention. 本発明の第2の実施形態の非接触充電システムに用いる電力供給を行う充電器である磁界発生機の構成図である。It is a block diagram of the magnetic field generator which is a charger which supplies the electric power used for the non-contact charge system of the 2nd Embodiment of this invention. 本発明の第2の実施形態の非接触充電システムに用いる電力供給を受ける電子機器である受信携帯端末の構成図である。It is a block diagram of the receiving portable terminal which is an electronic device which receives the electric power used for the non-contact charge system of the 2nd Embodiment of this invention.

以下、図を参照しながら、本発明の実施形態を詳細に説明する。但し、以下に述べる実施形態には、本発明を実施するために技術的に好ましい限定がされているが、発明の範囲を以下に限定するものではない。
(第1の実施形態)
(構成の説明)
図1は、本発明の第1の実施形態の非接触充電システムに用いる、電力供給を行う充電器である磁界発生機10の構成を、図2は、本発明の第1の実施形態の非接触充電システムに用いる、電力供給を受ける電子機器である受信携帯端末20の構成を、各々示す。
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the preferred embodiments described below are technically preferable for carrying out the present invention, but the scope of the invention is not limited to the following.
(First embodiment)
(Description of configuration)
FIG. 1 shows a configuration of a magnetic field generator 10 that is a charger for supplying electric power used in the contactless charging system according to the first embodiment of the present invention, and FIG. 2 shows a non-contact configuration of the first embodiment of the present invention. The configuration of the receiving portable terminal 20 that is an electronic device that receives power supply and is used in the contact charging system is shown.

磁界発生機10は図1に示すように、交流電流102を流して磁界1を発生させるための送信側コイル101と、送信側コイル101に交流電流102を流すための電力を供給する電力供給部103と、交流電流102を生成するための発振回路部104と、電力供給部103のON/OFFを制御信号105によって制御する電力供給制御部106とを備える。   As shown in FIG. 1, the magnetic field generator 10 has a transmission side coil 101 for causing the alternating current 102 to flow to generate the magnetic field 1, and a power supply unit for supplying power for causing the transmission side coil 101 to flow the alternating current 102. 103, an oscillation circuit unit 104 for generating an alternating current 102, and a power supply control unit 106 that controls ON / OFF of the power supply unit 103 by a control signal 105.

さらに、受信携帯端末20から送られてくる起動信号2を処理、及び受信携帯端末20に磁界発生機10が近傍に存在することを認識させるための認識信号3を生成する起動信号処理部107と、時間的タイミングを監視するタイマー108と、信号処理部107からの認識信号111を受信携帯端末20が認識できる信号に変調する認識信号変調部112と、認識信号111を増幅して認識信号3とする認識信号送信無線部113と、受信携帯端末20側から送られてくる起動信号2を磁界発生機10側で認識できる起動信号114に復調する起動信号復調部115と、起動信号2を増幅して起動信号114とする起動信号無線部116とを備える。   Furthermore, an activation signal processing unit 107 that processes the activation signal 2 sent from the reception portable terminal 20 and generates a recognition signal 3 for causing the reception portable terminal 20 to recognize that the magnetic field generator 10 exists in the vicinity; A timer 108 that monitors temporal timing, a recognition signal modulation unit 112 that modulates the recognition signal 111 from the signal processing unit 107 into a signal that can be recognized by the receiving portable terminal 20, an amplification of the recognition signal 111, and the recognition signal 3 A recognition signal transmission radio unit 113 for performing the above operation, a start signal demodulating unit 115 for demodulating the start signal 2 transmitted from the receiving portable terminal 20 side into a start signal 114 that can be recognized on the magnetic field generator 10 side, and amplifying the start signal 2 And an activation signal radio unit 116 that serves as an activation signal 114.

さらに、認識信号送信無線部113と起動信号受信無線部116とのアンテナ118との接続を切り替えるアンテナスイッチ117と、アンテナスイッチ117の切替を制御するアンテナスイッチ切替制御部109と、磁界発生機10全体の制御を掌るCPU110(Central Processing Unit、中央演算処理装置)とを備える。アンテナ118と送信側コイル101とは分離して設けることができる。   Further, the antenna switch 117 that switches the connection between the recognition signal transmission radio unit 113 and the activation signal reception radio unit 116 with the antenna 118, the antenna switch switching control unit 109 that controls the switching of the antenna switch 117, and the entire magnetic field generator 10 CPU 110 (Central Processing Unit, central processing unit) that controls the above. The antenna 118 and the transmission side coil 101 can be provided separately.

認識信号送信無線部113は、送信用の搬送波を生成する発振回路部119を備え、発振回路部119にて生成された搬送波に認識信号111を変調し、信号成分を含んだ認識信号3を生成する認識信号変調部112から構成される。   The recognition signal transmission radio unit 113 includes an oscillation circuit unit 119 that generates a carrier wave for transmission, modulates the recognition signal 111 to the carrier wave generated by the oscillation circuit unit 119, and generates a recognition signal 3 including a signal component. The recognition signal modulation unit 112 is configured.

起動信号受信無線部116では、周波数を可変できる発振回路部120で生成されたローカル信号を起動信号復調部115に注入し、起動信号2とミックスダウンすることにより、周波数固定の起動信号114が生成される。   The activation signal reception radio unit 116 injects the local signal generated by the oscillation circuit unit 120 capable of changing the frequency into the activation signal demodulation unit 115 and mixes it with the activation signal 2 to generate a fixed frequency activation signal 114. Is done.

発振回路部119と発振回路部120とは、Phase Locked Loop(PLL)回路を含む構成となっており、その発振周波数はCPU110により制御され、磁界1、起動信号2、及び認識信号3が互いに干渉し合わない周波数に可変可能である。   The oscillation circuit unit 119 and the oscillation circuit unit 120 are configured to include a Phase Locked Loop (PLL) circuit, and the oscillation frequency is controlled by the CPU 110, and the magnetic field 1, the activation signal 2, and the recognition signal 3 interfere with each other. It can be changed to a frequency that does not fit.

一方、受信携帯端末20は図2に示すように、磁界1を受ける受信側コイル201と、受信側コイル201のインピーダンスを可変させるオートチューン回路部202と、受信側コイル201から得られた交流電流207を直流電流208に変換する整流器203と、整流器203から出力された直流電流208を計測する電流計測部204と、バッテリー206の充放電を切り替える充放電切替回路部205と、その切替を制御する充放電制御部209と、バッテリー206の残量を検出するバッテリー残量検出部210と、電流計測部204で得られた電流値を認識する電流値認識部211と、オートチューン回路部202に直流電圧225を印加するオートチューン回路制御部212とを備える。オートチューン回路部202による調整により、磁界1の高効率な受信が可能となる。   On the other hand, as shown in FIG. 2, the reception portable terminal 20 includes a reception side coil 201 that receives the magnetic field 1, an autotune circuit unit 202 that varies the impedance of the reception side coil 201, and an alternating current obtained from the reception side coil 201. The rectifier 203 that converts the 207 into the direct current 208, the current measuring unit 204 that measures the direct current 208 output from the rectifier 203, the charge / discharge switching circuit unit 205 that switches between charging and discharging of the battery 206, and the switching are controlled. The charge / discharge control unit 209, the battery remaining amount detection unit 210 that detects the remaining amount of the battery 206, the current value recognition unit 211 that recognizes the current value obtained by the current measurement unit 204, and the autotune circuit unit 202 And an autotune circuit control unit 212 for applying the voltage 225. Adjustment by the autotune circuit unit 202 enables highly efficient reception of the magnetic field 1.

さらに、磁界発生機10側から送られてくる認識信号3を処理と認識、及び磁界発生機10側の電力供給部103を起動させるための起動信号220を生成する信号処理部213と、磁界発生機10側から送られてくる認識信号3を受信携帯端末20側で認識できる認識信号217に復調する認識信号復調部218と、認識信号3を増幅して認識信号217とする認識信号受信無線部219と、信号処理部213からの起動信号220を磁界発生機10側に認識できる起動信号2に変調を施す起動信号変調部221と、起動信号220を増幅して起動信号2とする起動信号送信無線部222とを備える。   Further, the recognition signal 3 sent from the magnetic field generator 10 side is recognized as processing, and a signal processing unit 213 for generating an activation signal 220 for activating the power supply unit 103 on the magnetic field generator 10 side, and magnetic field generation A recognition signal demodulating unit 218 that demodulates the recognition signal 3 sent from the device 10 side into a recognition signal 217 that can be recognized on the receiving portable terminal 20 side, and a recognition signal receiving radio unit that amplifies the recognition signal 3 and makes it a recognition signal 217 219, an activation signal modulation unit 221 that modulates the activation signal 2 that can be recognized by the magnetic field generator 10 side from the activation signal 220 from the signal processing unit 213, and an activation signal transmission that amplifies the activation signal 220 to obtain the activation signal 2 And a wireless unit 222.

さらに、認識信号受信無線部219と起動信号送信無線部222とアンテナ224との接続を切り替えるアンテナスイッチ223と、アンテナスイッチ223の切替を制御するアンテナスイッチ切替制御部215と、受信携帯端末20全体の制御を掌るCPU216とを備える。アンテナ224と受信側コイル201とは分離して設けることができる。   Furthermore, the antenna switch 223 that switches the connection between the recognition signal reception radio unit 219, the activation signal transmission radio unit 222, and the antenna 224, the antenna switch switching control unit 215 that controls the switching of the antenna switch 223, and the entire reception portable terminal 20 And a CPU 216 for controlling. The antenna 224 and the receiving coil 201 can be provided separately.

認識信号受信無線部219では、周波数を可変できる発振回路部228で生成されたローカル信号を認識信号復調部218に注入し、認識信号3とミックスダウンすることにより、周波数固定の認識信号217が生成される。   The recognition signal reception radio unit 219 injects the local signal generated by the oscillation circuit unit 228 capable of changing the frequency into the recognition signal demodulation unit 218 and mixes it down with the recognition signal 3, thereby generating a fixed frequency recognition signal 217. Is done.

起動信号送信無線部222は、送信用の搬送波を生成する発振回路部227を備え、発振回路部227にて生成された搬送波に起動信号220を変調し、信号成分を含んだ起動信号2を生成する起動信号変調部221から構成される。   The activation signal transmission radio unit 222 includes an oscillation circuit unit 227 that generates a carrier wave for transmission, modulates the activation signal 220 to the carrier wave generated by the oscillation circuit unit 227, and generates an activation signal 2 including a signal component. The activation signal modulation unit 221 is configured to be configured.

発振回路部227と発振回路部228とは、Phase Locked Loop(PLL)回路を含む構成となっており、その発振周波数はCPU215により制御され、磁界1、起動信号2、及び認識信号3が互いに干渉し合わない周波数に可変可能である。   The oscillation circuit unit 227 and the oscillation circuit unit 228 are configured to include a phase locked loop (PLL) circuit, the oscillation frequency is controlled by the CPU 215, and the magnetic field 1, the activation signal 2, and the recognition signal 3 interfere with each other. It can be changed to a frequency that does not fit.

以上のように、本実施形態の非接触充電システムの磁界発生器10および受信携帯端末20においては、電力供給磁界にかかわるコイルと制御信号にかかわるアンテナとを分離し、さらに、制御信号を電力供給磁界との干渉を抑制する周波数に調整することができる。これにより、電力供給磁界と制御信号の送受信の個々の最適化が可能であり、両者の干渉の抑制された非接触充電システムを提供することができる。
(動作の説明)
図3は、図1の磁界発生機10の動作を説明したフローチャートである。磁界発生機10は、起動後(START)の通常状態、すなわち、充電を必要とする受信携帯端末20が近傍に無い状態では、CPU110内のアンテナスイッチ切替制御部109により、アンテナスイッチ117は起動信号送信無線部113側と起動信号受信無線部116側をタイマー108によって設定された時間毎交互に接続切替を行い、受信携帯端末20から送信される起動信号2の待受状態となる。(S301)
起動信号2の待受状態中は、起動信号処理部107からの受信携帯端末20へ磁界発生機10が存在を知らせる認識信号111を認識信号送信無線部113へ出力し、認識信号送信無線部113内にある認識信号変調部112にて受信携帯端末20が認識できる信号に変調を施す。このとき、発信回路部119により、磁界1との干渉を抑制した周波数を選択することができる。
それと同時にアンテナスイッチ切替制御部109は、アンテナスイッチ117を認識信号無線部113側に接続し、変調を施した認識信号3をアンテナ118よりタイマー108で設定された時間の間、送信を行う。(S302)
上述設定時間経過すると、アンテナスイッチ切替制御部109は、アンテナスイッチ117を起動信号無線部116側に接続を切替え、アンテナ118で受信携帯端末20からの起動信号2を受けると、起動信号受信無線部116内にある起動信号復調部115にてCPU110が認識できる起動信号114に復調する。このとき、発信回路部120は、起動信号2の周波数をミックスダウンして起動信号処理部107が処理できる周波数を選択する。起動信号処理部107は、CPU110に対して近傍に受信携帯端末20が存在することを認識させる。(S303のY)
一方、S303にて起動信号2を受信できなければ(S303のN)、再びS301の待受状態に戻る。
As described above, in the magnetic field generator 10 and the receiving portable terminal 20 of the contactless charging system of the present embodiment, the coil related to the power supply magnetic field and the antenna related to the control signal are separated, and the control signal is supplied with power. The frequency can be adjusted to suppress interference with the magnetic field. Thereby, each optimization of transmission / reception of an electric power supply magnetic field and a control signal is possible, and the non-contact charging system with which interference of both was suppressed can be provided.
(Description of operation)
FIG. 3 is a flowchart for explaining the operation of the magnetic field generator 10 of FIG. When the magnetic field generator 10 is in a normal state after start (START), that is, in a state where the receiving portable terminal 20 that requires charging is not in the vicinity, the antenna switch 117 is turned on by the antenna switch switching control unit 109 in the CPU 110. The transmission radio unit 113 side and the activation signal reception radio unit 116 side are switched alternately for each time set by the timer 108, and the standby state of the activation signal 2 transmitted from the reception portable terminal 20 is set. (S301)
During the standby state of the activation signal 2, the recognition signal 111 for informing the reception portable terminal 20 from the activation signal processing unit 107 that the magnetic field generator 10 is present is output to the recognition signal transmission radio unit 113. The recognition signal modulator 112 in the inside modulates a signal that can be recognized by the receiving portable terminal 20. At this time, the transmission circuit unit 119 can select a frequency in which interference with the magnetic field 1 is suppressed.
At the same time, the antenna switch switching control unit 109 connects the antenna switch 117 to the recognition signal radio unit 113, and transmits the modulated recognition signal 3 from the antenna 118 for the time set by the timer 108. (S302)
When the set time elapses, the antenna switch switching control unit 109 switches the connection of the antenna switch 117 to the activation signal radio unit 116 side, and receives the activation signal 2 from the reception portable terminal 20 via the antenna 118, the activation signal reception radio unit The activation signal demodulation unit 115 in 116 demodulates the activation signal 114 that can be recognized by the CPU 110. At this time, the transmitting circuit unit 120 mixes down the frequency of the activation signal 2 and selects a frequency that can be processed by the activation signal processing unit 107. The activation signal processing unit 107 causes the CPU 110 to recognize that the reception portable terminal 20 exists in the vicinity. (Y of S303)
On the other hand, if the activation signal 2 cannot be received in S303 (N in S303), the process returns to the standby state in S301.

受信携帯端末20が近傍に存在するとCPU110が認識すると(S303のY)、CPU110内の電力供給制御部106では電力供給部103に対して起動信号105を送り、電力供給部103をONさせ(S304)、送信側コイル101に交流電流102を流して送信側コイル101より磁界1を発生させる。(S305)
磁界1発生中もCPU110では定期的に上述の起動信号2の受信、認識信号3の送信を交互に繰り返し、この送受通信が確立している間は(S306のY)、受信携帯端末20が近傍に存在していると判断し、電力供給部103のON状態を継続して磁界1を発生し続ける。(S307)
一方、S306にて上述の送受通信が確立できなった時には(S306のN)、電力供給制御部106は、電力供給部103をOFFして(S308)、磁界1の発生を停止させ(S309)、再びS301の待受状態に戻る。
When the CPU 110 recognizes that the receiving portable terminal 20 exists in the vicinity (Y in S303), the power supply control unit 106 in the CPU 110 sends an activation signal 105 to the power supply unit 103 to turn on the power supply unit 103 (S304). ), An alternating current 102 is passed through the transmission side coil 101 to generate the magnetic field 1 from the transmission side coil 101. (S305)
While the magnetic field 1 is being generated, the CPU 110 periodically repeats the reception of the above-described activation signal 2 and the transmission of the recognition signal 3 alternately. While this transmission / reception communication is established (Y in S306), the receiving portable terminal 20 is in the vicinity. The power supply unit 103 is kept in the ON state and the magnetic field 1 is continuously generated. (S307)
On the other hand, when the above transmission / reception communication cannot be established in S306 (N in S306), the power supply control unit 106 turns off the power supply unit 103 (S308) and stops the generation of the magnetic field 1 (S309). The process returns to the standby state in S301 again.

図4は、図2の受信携帯端末20の動作を説明したフローチャートである。また、図5は、認識信号受信無線部219、及び起動信号送信無線部222の間欠動作を説明するものである。   FIG. 4 is a flowchart for explaining the operation of the receiving portable terminal 20 of FIG. FIG. 5 illustrates the intermittent operation of the recognition signal reception radio unit 219 and the activation signal transmission radio unit 222.

図2に示すように、受信携帯端末20では、起動後(START)、CPU216内のバッテリー残量検出部210にてバッテリー206の残量を定期的に検出しており、バッテリー残量が予め設定された設定値以下になると(S401のY)、CPU216内のアンテナアンテナスイッチ切替制御部215は、アンテナスイッチ223を認識信号受信無線部219側へ接続を切り替え、認識信号受信無線部219をONして(S402)磁界発生機10からの認識信号3の待受状態となる。(S403)
この際、バッテリー206の消耗を極力減らすため、認識信号受信無線部219は、図5に示すように間欠的、且つ認識信号3を認識可能な最低限の時間だけONさせるのが望ましい。この間欠動作はCPU216内に持つタイマー214によって制御される。また、上述のバッテリー残量設定値は、受信携帯端末20が予め持つ固定値としても、ユーザが受信携帯端末20上の操作から任意の値に設定できるとしても良い。
As shown in FIG. 2, in the receiving portable terminal 20, after activation (START), the remaining amount of the battery 206 is periodically detected by the remaining battery amount detection unit 210 in the CPU 216, and the remaining battery amount is set in advance. When the value is less than the set value (Y in S401), the antenna antenna switch switching control unit 215 in the CPU 216 switches the connection of the antenna switch 223 to the recognition signal reception radio unit 219 side, and turns on the recognition signal reception radio unit 219. (S402) The recognition signal 3 from the magnetic field generator 10 is set in a standby state. (S403)
At this time, in order to reduce the consumption of the battery 206 as much as possible, it is desirable that the recognition signal reception radio unit 219 is turned on only for a minimum time during which the recognition signal 3 can be recognized as shown in FIG. This intermittent operation is controlled by a timer 214 provided in the CPU 216. In addition, the above-described battery remaining amount setting value may be a fixed value that the reception portable terminal 20 has in advance, or may be set to an arbitrary value by an operation on the reception portable terminal 20 by the user.

一方、S401にてバッテリー残量が設定値以上の場合には(S401のN)、再びバッテリー残量の検出を定期的に繰り返す。   On the other hand, if the remaining battery level is greater than or equal to the set value in S401 (N in S401), the detection of the remaining battery level is repeated periodically.

アンテナ224から磁界発生機10からの認識信号3を受けると、認識信号受信無線部219内にある認識信号復調部218にてCPU216が認識できる認識信号217に復調される。このとき、発信回路部228は、認識信号2の周波数をミックスダウンして起動信号処理部107が処理できる周波数を選択する。信号処理部213はCPU216に対して近傍に磁界発生機10が存在することを認識させる。(S404のY)
一方、S404にて認識信号3を受信できなければ(S404のN)、再びS403の認識信号3待受状態に戻る。
When receiving the recognition signal 3 from the magnetic field generator 10 from the antenna 224, it is demodulated into a recognition signal 217 that can be recognized by the CPU 216 by the recognition signal demodulation unit 218 in the recognition signal reception radio unit 219. At this time, the transmission circuit unit 228 selects a frequency that can be processed by the activation signal processing unit 107 by mixing down the frequency of the recognition signal 2. The signal processing unit 213 causes the CPU 216 to recognize that the magnetic field generator 10 exists in the vicinity. (Y in S404)
On the other hand, if the recognition signal 3 cannot be received in S404 (N in S404), the process returns to the recognition signal 3 standby state in S403 again.

CPU216では近傍に磁界発生機10が存在することを認識すると、起動信号送信無線部222の電源をONし(S405)、CPU216内の信号処理部213から磁界発生機10へ充電が必要とする受信携帯端末20が近傍に存在する旨を知らせる起動信号220を起動信号送信無線部222へ出力する。起動信号220は、起動信号送信無線部222内にある起動信号変調部221で受信携帯端末20が認識できる信号に変調を施される。このとき、発信回路部227により、磁界1との干渉を抑制した周波数を選択することができる。   When the CPU 216 recognizes that the magnetic field generator 10 is present in the vicinity, the power of the activation signal transmission radio unit 222 is turned on (S405), and the signal processing unit 213 in the CPU 216 needs to charge the magnetic field generator 10 for charging. An activation signal 220 that informs that the mobile terminal 20 is in the vicinity is output to the activation signal transmission radio unit 222. The activation signal 220 is modulated on a signal that can be recognized by the reception portable terminal 20 by the activation signal modulation unit 221 in the activation signal transmission radio unit 222. At this time, the transmission circuit unit 227 can select a frequency in which interference with the magnetic field 1 is suppressed.

アンテナスイッチ切替制御部215は、アンテナスイッチ223を起動信号送信無線部222側に接続し、上述の変調を施された認識信号3をアンテナ224より送信する。(S406)
この際、バッテリー206の消耗を極力減らすため、起動信号受信無線部222は、図5に示すように間欠的、且つ起動信号2を磁界送信機10側で認識可能な最低限の時間だけONさせるのが望ましく、この間欠動作はCPU216内に持つタイマー214によって制御される。
The antenna switch switching control unit 215 connects the antenna switch 223 to the activation signal transmission radio unit 222 and transmits the recognition signal 3 subjected to the above-described modulation from the antenna 224. (S406)
At this time, in order to reduce the consumption of the battery 206 as much as possible, the activation signal receiving radio unit 222 turns on the activation signal 2 for a minimum time that can be recognized on the magnetic field transmitter 10 side intermittently as shown in FIG. This intermittent operation is controlled by a timer 214 provided in the CPU 216.

上述タイマー214で制御された時間が経過すると、アンテナスイッチ切替制御部215は、再びアンテナスイッチ223を認識信号受信無線部219側に接続を切替え、再度認識信号3を受信できるか確認しに行く。(S407)以降、定期的にこの送受信動作を繰り返し、互いに通信接続できている状態を送受の通信が確立している状態と称す。   When the time controlled by the timer 214 elapses, the antenna switch switching control unit 215 switches the connection of the antenna switch 223 to the recognition signal receiving radio unit 219 again and checks whether the recognition signal 3 can be received again. After (S407), this transmission / reception operation is periodically repeated, and a state where communication connection is established is referred to as a state where transmission / reception communication is established.

送受通信確立していれば(S407のY)、磁界発生機10から磁界1が発せられているため、受信側コイル201は磁界1を受けることができ、電磁誘導により受信側コイル201に交流電流207が流れる。交流電流207は、オートチューン回路部202を通り、整流器203にて直流電流208に変換され、電流計測部204、充放電切替回路部205を経てバッテリー206に充電が開始される。(S408)
一方、S407にて送受通信確立できなければ(S407のN)、再び認識信号3の待受状態に戻る。(S403)
バッテリー残量検出部210では充電中も定期的にバッテリー206の充電量を監視しており(S409)、送受通信が確立している間はバッテリー206が充電完了するまで充電状態を維持する。(S409のN)
バッテリー206の充電が完了すると(S409のY)、CPU216は認識信号受信無線部219と起動信号送信無線部222の動作を停止させ(S410)、再びS401に戻る。
If the transmission / reception communication has been established (Y in S407), the magnetic field 1 is generated from the magnetic field generator 10, and therefore the reception side coil 201 can receive the magnetic field 1, and an AC current is applied to the reception side coil 201 by electromagnetic induction. 207 flows. The alternating current 207 passes through the autotune circuit unit 202, is converted into a direct current 208 by the rectifier 203, and charging of the battery 206 is started through the current measuring unit 204 and the charge / discharge switching circuit unit 205. (S408)
On the other hand, if transmission / reception communication cannot be established in S407 (N in S407), the process returns to the standby state of the recognition signal 3 again. (S403)
The remaining battery level detection unit 210 periodically monitors the amount of charge of the battery 206 during charging (S409), and maintains the charged state until the battery 206 is fully charged while the transmission / reception communication is established. (N in S409)
When the charging of the battery 206 is completed (Y in S409), the CPU 216 stops the operation of the recognition signal reception wireless unit 219 and the activation signal transmission wireless unit 222 (S410), and returns to S401 again.

一方、電流計測部204は、直流電流208の値を計測する回路であり、CPU216内にある電流値認識部211によってその電流値をCPU216が認識する。   On the other hand, the current measurement unit 204 is a circuit that measures the value of the direct current 208, and the CPU 216 recognizes the current value by the current value recognition unit 211 in the CPU 216.

オートチューン回路部202は、受信側コイル201の共振周波数を変化させ、最も大きい直流電流208が得られるよう自動的に受信側コイル201のマッチングをコントロールする回路であり、バリアブルキャパシタ等を用いてオートチューン回路制御部212から直流電圧225の変化でオートチューン回路部202のインピーダンスを変化させる。   The autotune circuit unit 202 is a circuit that automatically controls the matching of the reception side coil 201 so as to obtain the largest DC current 208 by changing the resonance frequency of the reception side coil 201. The impedance of the autotune circuit unit 202 is changed by the change of the DC voltage 225 from the tune circuit control unit 212.

図6は、オートチューン回路部202と、電流計測部204、電流値認識部211、オートチューン回路制御部212から、最も大きい直流電流208を得られるようオートチューン回路部202のインピーダンスコントロールを行う動作を説明したフローチャートである。   FIG. 6 illustrates an operation for controlling the impedance of the autotune circuit unit 202 so that the largest DC current 208 can be obtained from the autotune circuit unit 202, the current measurement unit 204, the current value recognition unit 211, and the autotune circuit control unit 212. It is the flowchart explaining this.

図3のS306、図4のS407において送受通信が確立している状態をCPU216が認識すると(S601のY)、オートチューン回路制御部212は任意の直流電圧225をオートチューン回路部202に印加し(S602)、電流計測部204にて得られる直流電流208を計測してCPU216内の電流値認識部211にて電流値を認識する(S603)。   When the CPU 216 recognizes that the transmission / reception communication is established in S306 of FIG. 3 and S407 of FIG. 4 (Y in S601), the autotune circuit control unit 212 applies an arbitrary DC voltage 225 to the autotune circuit unit 202. (S602) The direct current 208 obtained by the current measurement unit 204 is measured, and the current value is recognized by the current value recognition unit 211 in the CPU 216 (S603).

その際、得られた電流値はCPU216で記憶しておき(S604)、オートチューン回路制御部212はオートチューン回路部202に印加する直流電圧225をα[V]上げ(S605)、再度直流電流208の電流値を計測する(S606)。ただし、ここのステップは、逆にα[V]下げる方向で行うこともできる。   At that time, the obtained current value is stored in the CPU 216 (S604), and the autotune circuit control unit 212 increases the DC voltage 225 applied to the autotune circuit unit 202 by α [V] (S605), and again the DC current. The current value 208 is measured (S606). However, this step can also be performed in the direction of decreasing α [V].

S605にて上述のCPU216に記憶していた電流値とα[V]上げた時の電流値を比較し(S607)、電流値が上がっていれば(S608のY)、上がった電流値をCPU216に記憶する(S609)。オートチューン回路制御部212はオートチューン回路部202に印加する直流電圧225を更にα[V]上げ(S610)、送受通信確立が継続していれば(S612のY)、電流計測部204にて再度電流値を計測する(S606)。   The current value stored in the CPU 216 described above in S605 is compared with the current value when α [V] is increased (S607). If the current value is increased (Y in S608), the increased current value is converted to the CPU 216. (S609). The auto-tune circuit control unit 212 further increases the DC voltage 225 applied to the auto-tune circuit unit 202 by α [V] (S610), and if the transmission / reception communication is continued (Y in S612), the current measurement unit 204 The current value is measured again (S606).

逆にS608にて電流値が下がれば(S608のN)、オートチューン回路制御部212はオートチューン回路部202に印加する直流電圧225を逆にα[V]下げ(S611)、送受通信確立が継続していれば(S612のY)、電流計測部204にて再度電流値を計測し(S606)、以降、このステップを繰り返す。   On the other hand, if the current value decreases in S608 (N in S608), the autotune circuit control unit 212 reduces the DC voltage 225 applied to the autotune circuit unit 202 by α [V] (S611), and transmission / reception communication establishment is established. If it continues (Y of S612), the current measurement unit 204 measures the current value again (S606), and thereafter repeats this step.

一方、S612にて送受通信確立していなければ(S612のN)、再びS601に戻る。   On the other hand, if transmission / reception communication is not established in S612 (N in S612), the process returns to S601 again.

図7は、本実施形態の非接触充電システムの磁界発生機10を、鉄道車両などの椅子701や吊棚702に設置した場合を示す。クレジットカードや心臓ペースメーカへの影響を考慮すれば、磁界発生機10から発せられる磁界1の強度は可能な限り小さく、且つ充電を必要とする受信携帯端末20が近傍に近づいた時にのみ磁界1を発すれば、その影響は大幅に軽減される。例えば、磁界発生機10と受信携帯端末20との距離は、磁界発生機10と磁界発生機10の発生する磁界の影響を受ける第3の機器、すなわち、クレジットカードや心臓ペースメーカとの距離よりも短いことが好適である。   FIG. 7 shows a case where the magnetic field generator 10 of the contactless charging system of the present embodiment is installed on a chair 701 or a hanging shelf 702 such as a railway vehicle. Considering the influence on the credit card and the cardiac pacemaker, the intensity of the magnetic field 1 generated from the magnetic field generator 10 is as small as possible, and the magnetic field 1 is applied only when the receiving portable terminal 20 that requires charging approaches the vicinity. If it does, the impact will be greatly reduced. For example, the distance between the magnetic field generator 10 and the receiving portable terminal 20 is larger than the distance between the magnetic field generator 10 and the third device affected by the magnetic field generated by the magnetic field generator 10, that is, a credit card or a cardiac pacemaker. Short is preferred.

よって、前述の起動信号2と認識信号3の通信可能距離を数十cm〜1m程度とすれば、不必要な磁界1の発生を防ぐことが可能である。そのためには、図7に示すように電車椅子701の下部辺りに設置するが好適である。   Therefore, if the communicable distance between the activation signal 2 and the recognition signal 3 is about several tens of cm to 1 m, it is possible to prevent generation of unnecessary magnetic field 1. For that purpose, as shown in FIG. 7, it is suitable to install around the lower part of the electric wheelchair 701.

受信携帯端末20の所持者は普段、カバンのバックやズボンのポケット等に受信携帯端末20を携帯していると想定される。よって、磁界発生機10と受信携帯端末20の位置関係は、Bの位置では磁界発生機10から送信される認識信号3を受信携帯端末20は受信することができ、受信携帯端末20側からも起動信号2を送信して磁界1を得ることができる。一方、Aの位置、すなわち、心臓ペースメーカの位置に近い胸ポケットや操作の位置では、認識信号3を受信携帯端末20が受信できず、受信携帯端末20も起動信号2を送信しないため、磁界1は発生されない。   It is assumed that the owner of the receiving portable terminal 20 usually carries the receiving portable terminal 20 in a bag bag, a pants pocket, or the like. Therefore, the positional relationship between the magnetic field generator 10 and the receiving portable terminal 20 is such that the receiving portable terminal 20 can receive the recognition signal 3 transmitted from the magnetic field generator 10 at the position B, and also from the receiving portable terminal 20 side. The activation signal 2 can be transmitted to obtain the magnetic field 1. On the other hand, the reception portable terminal 20 cannot receive the recognition signal 3 and the reception portable terminal 20 does not transmit the activation signal 2 at the position A, that is, the chest pocket or the operation position close to the position of the cardiac pacemaker. Is not generated.

また、受信側携帯端末20をバック等に入れ、吊棚に置くことを想定すれば、図7の上部に示すように、磁界発生機10を吊棚702の壁面や吊棚702パイプ等に設置しても良い。   If it is assumed that the receiving-side mobile terminal 20 is put in a bag and placed on a hanging shelf, the magnetic field generator 10 may be installed on the wall surface of the hanging shelf 702, the hanging shelf 702 pipe, or the like as shown in the upper part of FIG. good.

本実施形態で図7に示す設置が好適なのは、受信携帯端末20がオートチューン回路部202によって電流値を大きくできるので、磁界発生機10と受信携帯端末20の距離をある程度設けても、効率的な電力供給が可能なためである。また、これにより磁界発生機10が発生する磁界1の大きさを制御する余裕も生まれる。磁界発生機10は、図7に示す設置において、クレジットカードや心臓ペースメーカに影響を及ぼさない強度であって、受信携帯端末20の充電が可能な強度の磁界1を発生することができる。   In the present embodiment, the installation shown in FIG. 7 is preferable because the reception portable terminal 20 can increase the current value by the autotune circuit unit 202, and even if the distance between the magnetic field generator 10 and the reception portable terminal 20 is set to some extent, it is efficient. This is because a simple power supply is possible. This also provides a margin for controlling the magnitude of the magnetic field 1 generated by the magnetic field generator 10. In the installation shown in FIG. 7, the magnetic field generator 10 can generate the magnetic field 1 having a strength that does not affect the credit card or the cardiac pacemaker and that can charge the receiving portable terminal 20.

クレジットカードや心臓ペースメーカへの影響を考慮すれば、磁界発生器10から発せられる磁界1の強度は可能な限り押さえたいため、受信携帯端末20において、バッテリー残量検出部210にて監視しているバッテリー206の充電状態により、起動信号2によるコマンド送信によって磁界1の強度を制御できるようにすることができる。すなわち、バッテリー206の充電状態が空に近ければ多くの充電電流を必要とするため、磁界1の強度を強くする。ただし、クレジットカードや心臓ペースメーカへの影響を考慮して、一定値以上には超えないように制御することができる。また、バッテリー206が満充電状態に近ければ少ない充電電流で済むため、磁界1の強度は小さく抑えるように制御することができる。   Considering the influence on the credit card or cardiac pacemaker, the intensity of the magnetic field 1 generated from the magnetic field generator 10 is to be suppressed as much as possible. Depending on the state of charge of the battery 206, it is possible to control the strength of the magnetic field 1 by transmitting a command based on the activation signal 2. That is, if the state of charge of the battery 206 is close to empty, a large amount of charging current is required, so that the strength of the magnetic field 1 is increased. However, in consideration of the influence on the credit card and the cardiac pacemaker, it can be controlled not to exceed a certain value. Further, if the battery 206 is close to a fully charged state, only a small charging current is required, so that the intensity of the magnetic field 1 can be controlled to be small.

以上の磁界1の強度の制御は、本実施形態の非接触充電システムの磁界発生器10および受信携帯端末20においては、電力供給磁界にかかわるコイルと制御信号にかかわるアンテナとを分離し、さらに、制御信号を電力供給磁界との干渉を抑制する周波数に調整できるようにしていることが、実現を可能としている。すなわち、本実施形態の構成により、電力供給磁界と制御信号の送受信の各々の最適化が可能であり、かつ両者の干渉の抑制された非接触充電システムが可能なことで、磁界1の強度の制御が可能となっている。   In the magnetic field generator 10 and the receiving portable terminal 20 of the contactless charging system of the present embodiment, the above-described control of the strength of the magnetic field 1 separates the coil related to the power supply magnetic field and the antenna related to the control signal, It is possible to realize that the control signal can be adjusted to a frequency that suppresses interference with the power supply magnetic field. In other words, the configuration of the present embodiment enables the optimization of each of the power supply magnetic field and the transmission / reception of the control signal, and the non-contact charging system in which the interference between the two is suppressed. Control is possible.

また、本実施形態では、1台の磁界発生器10に対し、複数の受信携帯端末20の同時充電が可能である。すなわち、制御信号である起動信号2と認識信号3とを間欠送受信し合うタイミングを、磁界発生器10側はCPU110、受信携帯端末20側はCPU216でずらし合うことにより、1台の磁界発生器10を複数の受信携帯端末20に対応させることが可能となる。もしくは、起動信号2内に各受信携帯端末20自身を示す識別信号を含ませておくことで、1台の磁界発生器10を複数の受信携帯端末20に対応させることが可能となる。   Further, in the present embodiment, a plurality of receiving portable terminals 20 can be charged simultaneously with respect to one magnetic field generator 10. That is, the timing at which the start signal 2 and the recognition signal 3 as control signals are intermittently transmitted / received is shifted by the CPU 110 on the magnetic field generator 10 side and the CPU 216 on the receiving portable terminal 20 side, thereby shifting one magnetic field generator 10. Can be made to correspond to a plurality of receiving portable terminals 20. Alternatively, by including an identification signal indicating each receiving portable terminal 20 in the activation signal 2, one magnetic field generator 10 can be made to correspond to a plurality of receiving portable terminals 20.

さらに、1台の磁界発生器10に対し受信携帯端末20が多数であって、1つの周波数で賄い切れない場合には、前述したPLL回路によって各々の受信携帯端末20の発振回路部227の周波数を変更し、起動信号2の周波数を変えることにより扱える受信携帯端末の数を増やすことができる。   Further, when there are a large number of receiving portable terminals 20 for one magnetic field generator 10 and cannot be covered by one frequency, the frequency of the oscillation circuit unit 227 of each receiving portable terminal 20 is controlled by the PLL circuit described above. By changing the frequency of the activation signal 2, it is possible to increase the number of receiving portable terminals that can be handled.

本実施形態の非接触充電システムに用いる受信携帯端末20の構成の説明では、図2において受信携帯端末20におけるオートチューン回路部202のインピーダンスコントロールを電流計測部204で直流電流208を計測する方式としていたが、図8に示すように、受信側コイル201で受ける電界値を計測する方式でも良い。この場合の受信携帯端末30は、電流計測部204をRSSI(Received Signal Strength Indicator)回路801に置き換えて整流器203の前に配置し、電流値認識部211を電界値認識部802に置き換えることで、図2の受信携帯端末20と同様の動作を実現できる。   In the description of the configuration of the receiving mobile terminal 20 used in the contactless charging system of the present embodiment, the impedance control of the autotune circuit unit 202 in the receiving mobile terminal 20 in FIG. However, as shown in FIG. 8, a method of measuring the electric field value received by the receiving coil 201 may be used. The receiving portable terminal 30 in this case replaces the current measuring unit 204 with a RSSI (Received Signal Strength Indicator) circuit 801 and arranges it in front of the rectifier 203, and replaces the current value recognizing unit 211 with the electric field value recognizing unit 802. The same operation as that of the receiving portable terminal 20 in FIG. 2 can be realized.

また、図2において、実施例の説明では磁界1から得られる直流電流208は充放電切替回路部205を介してバッテリー206に充電する形としたが、充放電切替回路部205から端末各回路226へ直接供給しても良く、端末各回路226を動作させても直流電流208に余裕がある場合、バッテリー206の方へも充電するようにしても良い。上述の制御は充放電制御部209にて行われる。   In FIG. 2, in the description of the embodiment, the direct current 208 obtained from the magnetic field 1 is charged to the battery 206 via the charge / discharge switching circuit unit 205. The battery 206 may be charged when the DC current 208 has a margin even when each terminal circuit 226 is operated. The above-described control is performed by the charge / discharge control unit 209.

すなわち、端末各回路226の電源を磁界1で得られる直流電流208で賄い、バッテリー206からの電源供給は停止としても良く、磁界1が得られない場合にはバッテリー206を使用するといったハイブリッド方式とすることができる。これにより、バッテリー206はより長持ちし、受信携帯端末20の更なる長時間使用が可能となる。   In other words, the terminal circuit 226 is powered by the direct current 208 obtained by the magnetic field 1, the power supply from the battery 206 may be stopped, and when the magnetic field 1 cannot be obtained, the battery 206 is used. can do. As a result, the battery 206 lasts longer and the receiving portable terminal 20 can be used for a longer time.

また、図7では、本実施形態の非接触充電システムの磁界発生機10を、鉄道車両などの椅子701や吊棚702に設置した例を示したが、他にも、駅のホームや待合室、喫煙所、自動車、船舶、航空機、飲食店や理髪店などの各種店内、歩道や街灯等、人が利用することの多い任意の場所に磁界発生機を設置することで、ユーザが電池の消耗を気にすることなく携帯端末を利用することが可能となる。   FIG. 7 shows an example in which the magnetic field generator 10 of the contactless charging system according to the present embodiment is installed on a chair 701 or a hanging shelf 702 such as a railway vehicle. By installing magnetic field generators at places where people often use such as offices, automobiles, ships, aircraft, restaurants, barbers, and other stores, sidewalks, streetlights, etc. It becomes possible to use a portable terminal without making it.

本実施形態によれば、電磁誘導を利用した充電器が携帯端末などの電子機器の電池に非接触で給電する非接触充電システムにおいて、電力供給とコマンドの送受信の各々の最適化や、電力供給とコマンドの送受信との相互の干渉の抑制が可能となる。これにより、磁界によるクレジットカードや心臓ペースメーカ等への影響が軽減され、ユーザの充電に対する負担の軽減された非接触充電システムが実現する。
(第2の実施形態)
図9は、本発明の第2の実施形態の非接触充電システムに用いる、電力供給を行う充電器である磁界発生機40の構成を、図10は、本発明の第2の実施形態の非接触充電システムに用いる、電力供給を受ける電子機器である受信携帯端末50の構成を、各々示す。
According to this embodiment, in a non-contact charging system in which a charger using electromagnetic induction supplies power to a battery of an electronic device such as a mobile terminal in a non-contact manner, each optimization of power supply and command transmission / reception, and power supply And mutual interference between transmission and reception of commands can be suppressed. Thereby, the influence on a credit card, a cardiac pacemaker, etc. by a magnetic field is reduced, and the non-contact charge system with which the burden with respect to charge of a user was reduced is implement | achieved.
(Second Embodiment)
FIG. 9 shows a configuration of a magnetic field generator 40 that is a charger for supplying power used in the contactless charging system according to the second embodiment of the present invention, and FIG. 10 shows a non-contact configuration of the second embodiment of the present invention. The configuration of the receiving portable terminal 50, which is an electronic device that receives power supply, used in the contact charging system is shown.

本実施形態では、図9に示す送信側コイル101は、アンテナスイッチ901を設けることで、図1における送信側コイル101とアンテナ118とを共用させても良い。また、図10に示す受信側コイル201は、アンテナスイッチ1001を設けることで、図2における受信側コイル201とアンテナ224とを共用させても良い。これにより、充電器や端末をより縮小化できる効果を有する。本実施形態のその他の構成や動作は、第1の実施形態と同様である。   In the present embodiment, the transmission side coil 101 shown in FIG. 9 may share the transmission side coil 101 and the antenna 118 in FIG. 1 by providing an antenna switch 901. Further, the reception side coil 201 shown in FIG. 10 may be provided with the antenna switch 1001 so that the reception side coil 201 and the antenna 224 in FIG. Thereby, it has the effect that a charger and a terminal can be reduced more. Other configurations and operations of the present embodiment are the same as those of the first embodiment.

このとき、認識信号送信無線部113は、認識信号変調部112に対する発信回路部119を備え、認識信号3が磁界1に影響を及ぼさない周波数に調整することができる。起動信号無線部116は、起動信号復調部115に対する発信回路部120を備え、磁界1に影響を及ぼさない周波数に調整された起動信号2を信号処理部107が高効率に処理できる周波数に調整することができる。発信回路部119と発信回路部120とは、Phase Locked Loop(PLL)回路を含む構成を有する。PLL回路の制御は、CPU110にて行われる。   At this time, the recognition signal transmission radio unit 113 includes a transmission circuit unit 119 for the recognition signal modulation unit 112 and can adjust the frequency so that the recognition signal 3 does not affect the magnetic field 1. The activation signal radio unit 116 includes a transmission circuit unit 120 for the activation signal demodulation unit 115 and adjusts the activation signal 2 adjusted to a frequency that does not affect the magnetic field 1 to a frequency that the signal processing unit 107 can process with high efficiency. be able to. The transmission circuit unit 119 and the transmission circuit unit 120 have a configuration including a Phase Locked Loop (PLL) circuit. The CPU 110 controls the PLL circuit.

さらに、認識信号受信無線部219は、認識信号復調部218に対する発信回路部228を備え、磁界1に影響を及ぼさない周波数に調整された認識信号3を信号処理部213が高効率に処理できる周波数に調整することができる。起動信号送信無線部222は起動信号変調部221に対する発信回路部227を備え、起動信号2が磁界1に影響を及ぼさない周波数に調整することができる。発信回路部227と発信回路部228とは、Phase Locked Loop(PLL)回路を含む構成を有する。PLL回路の制御は、CPU216にて行われる。   Furthermore, the recognition signal receiving radio section 219 includes a transmission circuit section 228 for the recognition signal demodulation section 218, and the frequency at which the signal processing section 213 can process the recognition signal 3 adjusted to a frequency that does not affect the magnetic field 1 with high efficiency. Can be adjusted. The activation signal transmission radio unit 222 includes a transmission circuit unit 227 for the activation signal modulation unit 221, and can be adjusted to a frequency at which the activation signal 2 does not affect the magnetic field 1. The transmission circuit unit 227 and the transmission circuit unit 228 have a configuration including a Phase Locked Loop (PLL) circuit. The control of the PLL circuit is performed by the CPU 216.

以上のように、本実施形態の非接触充電システムの磁界発生器10および受信携帯端末20においては、制御信号を電力供給磁界との干渉を抑制する周波数に調整することができる。これにより、電力供給磁界と制御信号の送受信の個々の最適化が可能であり、両者の干渉の抑制された非接触充電システムを提供することができる。   As described above, in the magnetic field generator 10 and the receiving portable terminal 20 of the contactless charging system of the present embodiment, the control signal can be adjusted to a frequency that suppresses interference with the power supply magnetic field. Thereby, each optimization of transmission / reception of an electric power supply magnetic field and a control signal is possible, and the non-contact charging system with which interference of both was suppressed can be provided.

本実施形態によれば、電磁誘導を利用した充電器が携帯端末などの電子機器の電池に非接触で給電する非接触充電システムにおいて、電力供給とコマンドの送受信の各々の最適化や、電力供給とコマンドの送受信との相互の干渉の抑制が可能となる。これにより、磁界によるクレジットカードや心臓ペースメーカ等への影響が軽減され、ユーザの充電に対する負担の軽減された非接触充電システムが実現する。   According to this embodiment, in a non-contact charging system in which a charger using electromagnetic induction supplies power to a battery of an electronic device such as a mobile terminal in a non-contact manner, each optimization of power supply and command transmission / reception, and power supply And mutual interference between transmission and reception of commands can be suppressed. Thereby, the influence on a credit card, a cardiac pacemaker, etc. by a magnetic field is reduced, and the non-contact charge system with which the burden with respect to charge of a user was reduced is implement | achieved.

本発明は上記実施形態に限定されることなく、特許請求の範囲に記載した発明の範囲内で、種々の変形が可能であり、それらも本発明の範囲内に含まれるものであることはいうまでもない。   The present invention is not limited to the above-described embodiment, and various modifications are possible within the scope of the invention described in the claims, and it is also included within the scope of the present invention. Not too long.

また、上記の実施形態の一部又は全部は、以下の付記のようにも記載され得るが、以下には限られない。   Moreover, although a part or all of said embodiment may be described also as the following additional remarks, it is not restricted to the following.

付記
(付記1)
電力を供給する磁界を送信する充電器と、前記磁界の受信により前記電力を受給する電子機器と、を備えた非接触充電システムにおいて、
前記充電器は、前記磁界を送信する送信部と、前記電子機器に認識信号を送信し前記電子機器から送信される起動信号を受信する送受信部と、を有し、
前記電子機器は、前記磁界を受信する受信部と、前記認識信号を受信し前記起動信号を送信する受送信部と、を有し、
前記充電器は前記起動信号に基づいて前記磁界を送信し、前記電子機器は前記認識信号に基づいて前記磁界を受信する、非接触充電システム。
(付記2)
前記送受信部は前記送信部と分離して設けられ、前記受送信部は前記受信部と分離して設けられた、付記1記載の非接触充電システム。
(付記3)
前記充電器あるいは前記電子機器は、前記認識信号あるいは前記起動信号と、前記磁界との干渉を低減する発信回路部を備えた、付記1または2記載の非接触充電システム。
(付記4)
前記発信回路部は、前記磁界、あるいは、前記認識信号、あるいは、前記起動信号の周波数制御を行う、付記3記載の非接触充電システム。
(付記5)
前記送信部あるいは前記受信部はコイルである、付記1から4の内の1項記載の非接触充電システム。
(付記6)
前記送受信部あるいは前記受送信部はアンテナである、付記1から5の内の1項記載の非接触充電システム。
(付記7)
前記電子機器は、前記受信部のインピーダンス制御を行うオートチューン回路部を有する、付記1から6の内の1項記載の非接触充電システム。
(付記8)
前記オートチューン回路部は、前記受信部で受信した前記磁界が生じる電流もしくは電界を増大させる、付記7または8記載の非接触充電システム。
(付記9)
前記電子機器は、前記磁界による前記電力で充電できるバッテリーを有し、前記バッテリーの電力残量を反映した前記起動信号を送信し、
前記充電器は、前記起動信号に基づいて前記磁界を増減する、付記1から8の内の1項記載の非接触充電システム。
(付記10)
前記送信部と前記送受信部、あるいは、前記受信部と前記受送信部とは、一体化された、付記1あるいは3から9の内の1項記載の非接触充電システム。
(付記11)
電力を供給する磁界を送受信することによって充電を行う非接触充電システムに用いる充電器において、前記充電器は、
電力を供給する磁界を送信する送信部と、
前記電力を供給する電子機器に認識信号を送信し、前記電子機器から送信される起動信号を受信する、送受信部と、を備え、
前記起動信号に基づいて前記磁界を送信する充電器。
(付記12)
前記送受信部は前記送信部と分離して設けられた、付記11記載の充電器。
(付記13)
前記充電器は、前記認識信号あるいは前記起動信号と、前記磁界との干渉を低減する発信回路部を備えた、付記11または12記載の充電器。
(付記14)
前記発信回路部は、前記磁界、あるいは、前記認識信号、あるいは、前記起動信号の周波数制御を行う、付記13記載の充電器。
(付記15)
前記送信部はコイルであり、前記送受信部はアンテナである、付記11から14の内の1項記載の充電器。
(付記16)
前記送信部と前記送受信部とは一体化された、付記11または13から15の内の1項記載の充電器。
(付記17)
電力を供給する磁界を送受信することによって充電を行う非接触充電システムに用いる電子機器において、前記電子機器は、
電力を供給する磁界を受信する受信部と、
前記電力を供給する充電器から送信される認識信号を受信し、前記充電器に起動信号を送信する、受送信部と、を備え、
前記認識信号に基づいて前記磁界を受信する電子機器。
(付記18)
前記受送信部は前記受信部と分離して設けられた、付記17記載の電子機器。
(付記19)
前記電子機器は、前記認識信号あるいは前記起動信号と、前記磁界との干渉を低減する発信回路部を備えた、付記17または18記載の電子機器。
(付記20)
前記発信回路部は、前記認識信号、あるいは、前記起動信号の周波数制御を行う、付記19記載の電子機器。
(付記21)
前記受信部はコイルであり、前記受送信部はアンテナである、付記17から20の内の1項記載の電子機器。
(付記22)
前記電子機器は、前記磁界の受信効率を高めるオートチューン回路部を有する、付記17から21の内の1項記載の電子機器。
(付記23)
前記オートチューン回路部は、前記受信部のインピーダンス制御を行う、付記22記載の電子機器。
(付記24)
前記オートチューン回路部は、前記受信部で受信した前記磁界が生じる電流もしくは電界を増大させる、付記22または23記載の電子機器。
(付記25)
前記電子機器は、前記磁界による前記電力で充電できるバッテリーを有し、前記バッテリーの電力残量を反映した前記起動信号を送信する、付記17から24の内の1項記載の電子機器。
(付記26)
前記受信部と前記受送信部とは一体化された、付記17または19から25の内の1項記載の電子機器。
(付記27)
前記充電器と前記電子機器との距離は、前記充電器と前記充電器の発生する磁界の影響を受ける第3の機器との距離よりも短いことを特徴とする、付記1から10の内の1項記載の非接触充電システム。
(付記28)
前記第3の機器は、クレジットカード、心臓ペースメーカを含む、付記27記載の非接触充電システム。
(付記29)
前記充電器は、椅子あるいは棚に設置された、付記27または28記載の非接触充電システム。
(付記30)
前記椅子あるいは棚は、鉄道車両、自動車、船舶、航空機、飲食店、理髪店に備えられた、付記29記載の非接触充電システム。
(付記31)
前記充電器1台に対して前記電子機器複数台を有する、付記27から30の内の1項記載の非接触充電システム。
Appendix (Appendix 1)
In a contactless charging system comprising: a charger that transmits a magnetic field that supplies power; and an electronic device that receives the power by receiving the magnetic field.
The charger includes a transmission unit that transmits the magnetic field, and a transmission / reception unit that transmits a recognition signal to the electronic device and receives an activation signal transmitted from the electronic device,
The electronic device includes a receiving unit that receives the magnetic field, and a receiving and transmitting unit that receives the recognition signal and transmits the activation signal.
The non-contact charging system, wherein the charger transmits the magnetic field based on the activation signal, and the electronic device receives the magnetic field based on the recognition signal.
(Appendix 2)
The contactless charging system according to claim 1, wherein the transmission / reception unit is provided separately from the transmission unit, and the reception / transmission unit is provided separately from the reception unit.
(Appendix 3)
The contactless charging system according to claim 1 or 2, wherein the charger or the electronic device includes a transmission circuit unit that reduces interference between the recognition signal or the activation signal and the magnetic field.
(Appendix 4)
The non-contact charging system according to supplementary note 3, wherein the transmission circuit unit performs frequency control of the magnetic field, the recognition signal, or the activation signal.
(Appendix 5)
The non-contact charging system according to claim 1, wherein the transmitting unit or the receiving unit is a coil.
(Appendix 6)
The non-contact charging system according to claim 1, wherein the transmission / reception unit or the transmission / reception unit is an antenna.
(Appendix 7)
7. The non-contact charging system according to claim 1, wherein the electronic device includes an autotune circuit unit that controls impedance of the receiving unit.
(Appendix 8)
The contactless charging system according to appendix 7 or 8, wherein the autotune circuit unit increases a current or an electric field generated by the magnetic field received by the receiving unit.
(Appendix 9)
The electronic device has a battery that can be charged with the electric power generated by the magnetic field, and transmits the activation signal that reflects the remaining electric power of the battery.
9. The non-contact charging system according to claim 1, wherein the charger increases or decreases the magnetic field based on the activation signal.
(Appendix 10)
10. The non-contact charging system according to one of appendix 1 or 3 to 9, wherein the transmission unit and the transmission / reception unit, or the reception unit and the transmission / reception unit are integrated.
(Appendix 11)
In a charger used in a contactless charging system that performs charging by transmitting and receiving a magnetic field that supplies electric power, the charger includes:
A transmitter for transmitting a magnetic field for supplying power;
A transmission / reception unit that transmits a recognition signal to the electronic device that supplies the power and receives an activation signal transmitted from the electronic device; and
A charger that transmits the magnetic field based on the activation signal.
(Appendix 12)
The charger according to appendix 11, wherein the transmission / reception unit is provided separately from the transmission unit.
(Appendix 13)
The charger according to appendix 11 or 12, further comprising a transmission circuit unit that reduces interference between the recognition signal or the activation signal and the magnetic field.
(Appendix 14)
The charger according to appendix 13, wherein the transmission circuit unit performs frequency control of the magnetic field, the recognition signal, or the activation signal.
(Appendix 15)
The charger according to any one of appendices 11 to 14, wherein the transmission unit is a coil and the transmission / reception unit is an antenna.
(Appendix 16)
16. The charger according to one of appendices 11 or 13 to 15, wherein the transmission unit and the transmission / reception unit are integrated.
(Appendix 17)
In an electronic device used in a contactless charging system that performs charging by transmitting and receiving a magnetic field that supplies electric power, the electronic device includes:
A receiver for receiving a magnetic field for supplying power;
A receiving / transmitting unit that receives a recognition signal transmitted from the charger that supplies the power and transmits an activation signal to the charger;
An electronic device that receives the magnetic field based on the recognition signal.
(Appendix 18)
The electronic device according to appendix 17, wherein the transmission / reception unit is provided separately from the reception unit.
(Appendix 19)
19. The electronic apparatus according to appendix 17 or 18, wherein the electronic apparatus includes a transmission circuit unit that reduces interference between the recognition signal or the activation signal and the magnetic field.
(Appendix 20)
The electronic device according to appendix 19, wherein the transmission circuit unit performs frequency control of the recognition signal or the activation signal.
(Appendix 21)
21. The electronic device according to one of appendices 17 to 20, wherein the receiving unit is a coil and the transmitting / receiving unit is an antenna.
(Appendix 22)
The electronic device according to any one of appendices 17 to 21, wherein the electronic device includes an autotune circuit unit that increases the reception efficiency of the magnetic field.
(Appendix 23)
The electronic device according to appendix 22, wherein the autotune circuit unit performs impedance control of the receiving unit.
(Appendix 24)
24. The electronic device according to appendix 22 or 23, wherein the autotune circuit unit increases a current or an electric field generated by the magnetic field received by the receiving unit.
(Appendix 25)
25. The electronic device according to one of appendices 17 to 24, wherein the electronic device includes a battery that can be charged with the electric power generated by the magnetic field, and transmits the activation signal that reflects a remaining amount of electric power of the battery.
(Appendix 26)
26. The electronic device according to one of appendices 17 or 19 to 25, wherein the reception unit and the transmission / reception unit are integrated.
(Appendix 27)
The distance between the charger and the electronic device is shorter than the distance between the charger and a third device affected by the magnetic field generated by the charger. The contactless charging system according to claim 1.
(Appendix 28)
The contactless charging system according to appendix 27, wherein the third device includes a credit card and a cardiac pacemaker.
(Appendix 29)
29. The non-contact charging system according to appendix 27 or 28, wherein the charger is installed on a chair or a shelf.
(Appendix 30)
30. The contactless charging system according to appendix 29, wherein the chair or shelf is provided in a railway vehicle, automobile, ship, aircraft, restaurant, or barber shop.
(Appendix 31)
31. The non-contact charging system according to one of appendices 27 to 30, comprising a plurality of the electronic devices with respect to one charger.

1 磁界
2 起動信号
3 認識信号
10、40 磁界発生機
20、30、50 受信携帯端末
101 送信側コイル
102 交流電流
103 電力供給部
104 発振回路部
105 制御信号
106 電力供給制御部
107 信号処理部
108 タイマー
109 アンテナスイッチ切替制御部
110 CPU
111 認識信号
112 認識信号変調部
113 認識信号送信無線部
114 起動信号
115 起動信号復調部
116 起動信号無線部
117 アンテナスイッチ
119、120 発信回路部
201 受信側コイル
202 オートチューン回路部
203 整流器
204 電流計測部
205 充放電切替回路部
206 バッテリー
207 交流電流
208 直流電流
209 充放電制御部
210 バッテリー残量検出部
211 電流値認識部
212 オートチューン回路制御部
213 信号処理部
214 タイマー
215 アンテナスイッチ切替制御部
216 CPU
217 認識信号
218 認識信号復調部
219 認識信号受信無線部
220 起動信号
221 起動信号変調部
222 起動信号送信無線部
223 アンテナスイッチ
224 アンテナ
225 直流電圧
226 端末各回路
227、228 発信回路部
801 RSSI回路
802 電界値認識部
901、1001 アンテナスイッチ
DESCRIPTION OF SYMBOLS 1 Magnetic field 2 Startup signal 3 Recognition signal 10, 40 Magnetic field generator 20, 30, 50 Reception portable terminal 101 Transmission side coil 102 AC current 103 Power supply part 104 Oscillation circuit part 105 Control signal 106 Power supply control part 107 Signal processing part 108 Timer 109 Antenna switch switching control unit 110 CPU
DESCRIPTION OF SYMBOLS 111 Recognition signal 112 Recognition signal modulation part 113 Recognition signal transmission radio | wireless part 114 Activation signal 115 Activation signal demodulation part 116 Activation signal radio | wireless part 117 Antenna switch 119,120 Transmission circuit part 201 Reception side coil 202 Autotune circuit part 203 Rectifier 204 Current measurement Unit 205 charge / discharge switching circuit unit 206 battery 207 alternating current 208 direct current 209 charge / discharge control unit 210 remaining battery level detection unit 211 current value recognition unit 212 autotune circuit control unit 213 signal processing unit 214 timer 215 antenna switch switching control unit 216 CPU
217 Recognition signal 218 Recognition signal demodulation unit 219 Recognition signal reception radio unit 220 Activation signal 221 Activation signal modulation unit 222 Activation signal transmission radio unit 223 Antenna switch 224 Antenna 225 DC voltage 226 Terminal circuit 227, 228 Transmission circuit unit 801 RSSI circuit 802 Electric field value recognition unit 901, 1001 Antenna switch

Claims (10)

電力を供給する磁界を送信する充電器と、前記磁界の受信により前記電力を受給する電子機器と、を備えた非接触充電システムにおいて、
前記充電器は、前記磁界を送信する送信部と、前記電子機器に認識信号を送信し前記電子機器から送信される起動信号を受信する送受信部と、を有し、
前記電子機器は、前記磁界を受信する受信部と、前記認識信号を受信し前記起動信号を送信する受送信部と、を有し、
前記充電器は前記起動信号に基づいて前記磁界を送信し、前記電子機器は前記認識信号に基づいて前記磁界を受信する、非接触充電システム。
In a contactless charging system comprising: a charger that transmits a magnetic field that supplies power; and an electronic device that receives the power by receiving the magnetic field.
The charger includes a transmission unit that transmits the magnetic field, and a transmission / reception unit that transmits a recognition signal to the electronic device and receives an activation signal transmitted from the electronic device,
The electronic device includes a receiving unit that receives the magnetic field, and a receiving and transmitting unit that receives the recognition signal and transmits the activation signal.
The non-contact charging system, wherein the charger transmits the magnetic field based on the activation signal, and the electronic device receives the magnetic field based on the recognition signal.
前記送受信部は前記送信部と分離して設けられ、前記受送信部は前記受信部と分離して設けられた、請求項1記載の非接触充電システム。 The contactless charging system according to claim 1, wherein the transmission / reception unit is provided separately from the transmission unit, and the reception / transmission unit is provided separately from the reception unit. 前記充電器あるいは前記電子機器は、前記認識信号あるいは前記起動信号と、前記磁界との干渉を低減する発信回路部を備えた、請求項1または2記載の非接触充電システム。 The contactless charging system according to claim 1, wherein the charger or the electronic device includes a transmission circuit unit that reduces interference between the recognition signal or the activation signal and the magnetic field. 前記発信回路部は、前記磁界、あるいは、前記認識信号、あるいは、前記起動信号の周波数制御を行う、請求項3記載の非接触充電システム。 The non-contact charging system according to claim 3, wherein the transmission circuit unit performs frequency control of the magnetic field, the recognition signal, or the activation signal. 前記電子機器は、前記受信部のインピーダンス制御を行うオートチューン回路部を有する、請求項1から4の内の1項記載の非接触充電システム。 5. The non-contact charging system according to claim 1, wherein the electronic device includes an autotune circuit unit that controls impedance of the receiving unit. 6. 前記電子機器は、前記磁界による前記電力で充電できるバッテリーを有し、前記バッテリーの電力残量を反映した前記起動信号を送信し、
前記充電器は、前記起動信号に基づいて前記磁界を増減する、請求項1から5の内の1項記載の非接触充電システム。
The electronic device has a battery that can be charged with the electric power generated by the magnetic field, and transmits the activation signal that reflects the remaining electric power of the battery.
The contactless charging system according to claim 1, wherein the charger increases or decreases the magnetic field based on the activation signal.
電力を供給する磁界を送受信することによって充電を行う非接触充電システムに用いる充電器において、前記充電器は、
電力を供給する磁界を送信する送信部と、
前記電力を供給する電子機器に認識信号を送信し、前記電子機器から送信される起動信号を受信する、送受信部と、を備え、
前記起動信号に基づいて前記磁界を送信する充電器。
In a charger used in a contactless charging system that performs charging by transmitting and receiving a magnetic field that supplies electric power, the charger includes:
A transmitter for transmitting a magnetic field for supplying power;
A transmission / reception unit that transmits a recognition signal to the electronic device that supplies the power and receives an activation signal transmitted from the electronic device; and
A charger that transmits the magnetic field based on the activation signal.
前記充電器は、前記認識信号あるいは前記起動信号と、前記磁界との干渉を低減する発信回路部を備えた、請求項7記載の充電器。 The charger according to claim 7, further comprising a transmission circuit unit that reduces interference between the recognition signal or the activation signal and the magnetic field. 電力を供給する磁界を送受信することによって充電を行う非接触充電システムに用いる電子機器において、前記電子機器は、
電力を供給する磁界を受信する受信部と、
前記電力を供給する充電器から送信される認識信号を受信し、前記充電器に起動信号を送信する、受送信部と、を備え、
前記認識信号に基づいて前記磁界を受信する電子機器。
In an electronic device used in a contactless charging system that performs charging by transmitting and receiving a magnetic field that supplies electric power, the electronic device includes:
A receiver for receiving a magnetic field for supplying power;
A receiving / transmitting unit that receives a recognition signal transmitted from the charger that supplies the power and transmits an activation signal to the charger;
An electronic device that receives the magnetic field based on the recognition signal.
前記電子機器は、前記認識信号あるいは前記起動信号と、前記磁界との干渉を低減する発信回路部を備えた、請求項9記載の電子機器。 The electronic device according to claim 9, further comprising a transmission circuit unit that reduces interference between the recognition signal or the activation signal and the magnetic field.
JP2013155648A 2013-07-26 2013-07-26 Non-contact charging system, and charger and electronic equipment for use in the same Pending JP2015027187A (en)

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