WO2016035141A1 - 共振結合型電力伝送システム、共振型電力送信装置及び共振型電力受信装置 - Google Patents
共振結合型電力伝送システム、共振型電力送信装置及び共振型電力受信装置 Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/0115—Frequency selective two-port networks comprising only inductors and capacitors
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/38—Impedance-matching networks
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- the present invention relates to a resonance coupled power transmission system, a resonance power transmission apparatus, and a resonance power reception apparatus that perform power transmission using the resonance characteristics of a resonance type transmitting / receiving antenna.
- This apparatus is composed of a first resonator structure (resonance type transmission antenna) and a second resonator structure (resonance type reception antenna) located distal to the first resonator structure.
- the first resonator structure receives energy from a power supply source (AC output type power supply) and transfers it non-radiatively to the second resonator structure by electromagnetic resonance (magnetic field resonance coupling).
- the second resonator structure receives energy from the first resonator structure and supplies it to an external load (receiving circuit).
- the resonance characteristic value Q1 of the first resonator structure and the resonance characteristic value Q2 of the second resonator structure are set so as to satisfy the following expression (1).
- JP 2011-177018 A Special table 2012-502602 gazette Special table 2009-501510
- the present invention has been made in order to solve the above-described problems.
- the present invention performs setting in consideration of fluctuations in the resonance characteristic value due to the influence of the resonant power supply and the receiving circuit, and powers the entire system with respect to a conventional apparatus.
- An object of the present invention is to provide a resonance coupled power transmission system, a resonance power transmission apparatus, and a resonance power reception apparatus that can increase the efficiency of transmission.
- a resonant coupling type power transmission system includes a resonant power source that supplies power, a resonant power transmission device that has a resonant transmission antenna that transmits power supplied by the resonant power source, and a resonant transmission antenna.
- a resonance-type receiving antenna that receives transmitted power
- a resonance-type power receiving device that has a receiving circuit that supplies power received by the resonance-type receiving antenna to a load.
- the characteristic impedance of each functional unit is set so as to correlate the resonance characteristic value of the transmitting antenna and the resonance characteristic value of the resonance type power receiving apparatus.
- It is a circuit diagram which shows another structure of the resonance type power supply circuit in Embodiment 1 of this invention (a) It is a figure which shows a bridge type converter, (b) It is a figure which shows a D class converter, (c) It is a figure which shows DE class converter. It is a circuit diagram which shows another structure of the rectifier circuit in Embodiment 1 of this invention, (a) It is a figure which shows a class E rectifier circuit, (b) It is a figure which shows a double current rectifier circuit, (c) It is a figure which shows a half wave rectifier circuit, (d) It is a figure which shows a voltage doubler rectifier circuit. It is a figure which shows another structure of the resonance coupling type electric power transmission system which concerns on Embodiment 1 of this invention.
- FIG. 1 is a diagram showing a configuration of a resonant coupling type power transmission system according to Embodiment 1 of the present invention
- FIG. 2 is a specific circuit diagram.
- the resonance-coupled power transmission system includes a resonant power transmitter 1 and a resonant power receiver 2.
- a resonance frequency of a resonance type power supply 11 described later is 2 MHz or more is shown, but a resonance frequency of less than 2 MHz may be used.
- the resonance type power transmission apparatus 1 includes a resonance type power supply 11, a matching circuit 12, and a resonance type transmission antenna 13.
- the resonance type power supply 11 controls the supply of power to the resonance type transmission antenna 13, and converts DC or AC input power into AC having a predetermined frequency and outputs it.
- the resonance type power supply 11 is constituted by a power supply circuit using a resonance switching method, and has an output impedance Zo, a resonance frequency fo, and a resonance characteristic value Qo.
- the matching circuit 12 performs impedance matching between the output impedance Zo of the resonant power supply 11 and the pass characteristic impedance Zt of the resonant transmission antenna 13.
- the matching circuit 12 is composed of a ⁇ -type or L-type filter including an inductor L and a capacitor C, and has its pass characteristic impedance Zp.
- the resonant transmission antenna 13 receives the AC power from the resonant power supply 11 via the matching circuit 12 and performs a resonance operation to generate a non-radiating electromagnetic field in the vicinity, thereby causing the resonant receiving antenna 21 to On the other hand, power transmission is performed.
- the resonant transmission antenna 13 is a resonant antenna having a coil shape, and has a pass characteristic impedance Zt, a resonance frequency ft, and a resonance characteristic value Qt.
- the resonance frequency fo and the resonance characteristic value Qo of the resonance type power supply 11 are determined from the output impedance Zo of the resonance type power supply 11 and the pass characteristic impedance Zp of the matching circuit 12.
- the resonant power receiving apparatus 2 includes a resonant receiving antenna 21, a rectifier circuit 22, and a receiving circuit 23.
- the resonance type power receiving apparatus 2 has a resonance frequency fr and a resonance characteristic value Qr.
- the resonant receiving antenna 21 receives power by performing a resonant coupling operation with a non-radiating electromagnetic field from the resonant transmitting antenna 13, and outputs AC power.
- the resonance receiving antenna 21 is a resonance antenna having a coil shape and has a pass characteristic impedance Zr.
- the rectifying circuit 22 performs impedance matching between a rectifying function for converting AC power from the resonant receiving antenna 21 into DC power, and a pass characteristic impedance Zr of the resonant receiving antenna 21 and an input impedance ZRL of the receiving circuit 23.
- This is a matching rectifier circuit having a matching function.
- the matching function is configured by a ⁇ -type or L-type filter including an inductor L and a capacitor C.
- the rectifier circuit 22 has a pass characteristic impedance Zs.
- the rectifier circuit 22 is assumed to have a rectification function and a matching function.
- the rectification circuit 22 is not limited to this, and may be configured with only the rectification function although the rectification efficiency is lowered.
- the receiving circuit 23 receives the DC power from the rectifying circuit 22, converts it to a predetermined voltage, and supplies it to a load (not shown).
- the receiving circuit 23 includes an LC filter (smoothing filter) for smoothing the high-frequency voltage ripple, a DC / DC converter for converting the high-frequency voltage ripple into a predetermined voltage, and the like, and has an input impedance ZRL.
- the resonance characteristic value Qr and the resonance frequency fr of the resonance type power receiving device 2 are determined from the passage characteristic impedance Zr of the resonance type reception antenna 21, the passage characteristic impedance Zs of the rectifier circuit 22, and the input impedance ZRL of the reception circuit 23. .
- the power transmission method based on the resonant coupling of the resonant transmission / reception antennas 13 and 21 is not particularly limited, and may be any one of the magnetic field resonance method, the electric field resonance method, the electromagnetic induction method, or the contact type resonance coupling method. May be.
- each functional unit is correlated with the resonance characteristic value Qo of the resonance type power supply 11, the resonance characteristic value Qt of the resonance type transmission antenna 13, and the resonance characteristic value Qr of the resonance type power receiving device 2.
- ⁇ (Qo ⁇ Qt) ⁇ Qr (2) 0.5Qr ⁇ ⁇ (Qo ⁇ Qt) ⁇ 1.5Qr (3)
- the resonance type power It becomes possible to set the transmitter 1 and the resonant power receiver 2. As a result, highly efficient power transmission is possible as a whole system.
- the relationship between the distance d between the resonant transmission / reception antennas 13 and 21 and the coupling coefficient k ( ⁇ magnetic flux linkage rate) will be described with reference to FIG.
- the diameter ⁇ of the resonant transmission / reception antennas 13 and 21 is 18 [cm]
- the relationship between the distance d and the coupling coefficient k is as shown in FIG. That is, the coupling coefficient k increases as the distance d decreases, and the coupling coefficient k decreases as the distance d increases.
- the distance between the resonant transmission / reception antennas 13 and 21 can be reduced to a conventional electromagnetic induction without lowering the power transmission efficiency. It can be larger than the distance by.
- the characteristic impedance of each functional unit is set so as to satisfy the following expression (4). Specifically, it may be within the range of the following formula (5). k ⁇ (Qo ⁇ Qt) ⁇ 1 (4) 0.5 ⁇ k ⁇ (Qo ⁇ Qt) ⁇ 1.5 (5) Further, in the resonant power receiving apparatus 2, the characteristic impedance of each functional unit is set so as to satisfy the following expression (6). Specifically, it may be within the range of the following formula (7). k ⁇ Qr ⁇ 1 (6) 0.5 ⁇ k ⁇ Qr ⁇ 1.5 (7) Thereby, as shown in FIG. 4, the electric power transmission efficiency as the whole system can be raised more.
- the resonance frequencies ft and fr are shifted so that the intersection of the resonance characteristic values Qtx and Qr becomes the highest, and the intersection is made to coincide with the resonance frequency fo of the resonance type power supply 11.
- the resonance characteristic values in the expressions (2) and (3) can be made close to the maximum, and the power transmission efficiency can be made close to the maximum at the resonance frequency (transmission frequency) fo. be able to.
- the resonance characteristic value Q1 of the first resonator structure (resonance type transmission antenna) and the resonance characteristic value Q2 of the second resonator structure (resonance type reception antenna) are expressed by the equation (1). ) Is set high to satisfy.
- the resonance characteristic value Qo of the resonance type power supply 11 the resonance characteristic value Qt of the resonance type transmission antenna 13, and the resonance characteristic value Qr of the resonance type power receiving device 2. It is a thing.
- the distance d between the resonant transmission / reception antennas 13 and 21 can be made larger than the distance by conventional electromagnetic induction without lowering the power transmission efficiency. That is, in the present invention, even if the resonance characteristic values ⁇ (Qo ⁇ Qt) and Qr of the resonant transmission / reception antennas 13 and 21 corresponding to the resonance characteristic values Q1 and Q2 of the conventional device are lower than those of the conventional device, Highly efficient power transmission to the distance is possible. Specific examples are shown below.
- the resonance characteristic value Qo of the resonance type power supply 11 is set to 4 and the resonance characteristic value Qt of the resonance type transmission antenna 13 is set to 6.
- Qr is set to 5
- the relationship of the following formula (8) is established. ⁇ (Qo ⁇ Qt) ⁇ Qr ⁇ 5 (8)
- the resonance characteristic value Qo of the resonance type power supply 11 is set to 40
- the resonance characteristic value Qt of the resonance type transmission antenna 13 is set to 60
- the resonance characteristic of the resonance type power receiving apparatus 2 is set.
- the value Qr is set to 50
- the relationship of the following formula (11) is established. ⁇ (Qo ⁇ Qt) ⁇ Qr ⁇ 50 (11)
- the resonance characteristic value Qo of the resonance type power supply 11 is set to 120
- the resonance characteristic value Qt of the resonance type transmission antenna 13 is set to 80
- the resonance characteristic of the resonance type power receiving apparatus 2 is set.
- the value Qr is set to 100 is shown.
- the relationship of the following formula (13) is established. ⁇ (Qo ⁇ Qt) ⁇ Qr ⁇ 100 (13)
- the distance between the resonant transmission / reception antennas 13 and 21 may be made longer than the distance by the conventional electromagnetic induction without lowering the power transmission efficiency without depending on the resonance characteristic value of the resonant transmission / reception antennas 13 and 21. it can.
- the resonant transmission / reception antennas 13 and 21 can be designed with a degree of freedom that is not limited by the resonance characteristic values. And cost reduction. Further, it is not necessary to use a special component such as a high voltage capacitor for the capacitor used as a part of the resonant transmission / reception antennas 13 and 21, so that the size, weight and cost can be reduced.
- the resonant power supply 11 of the present invention is not limited to the circuit configuration shown in FIG. 2, and may have a circuit configuration as shown in FIG. 6, for example.
- 6A shows a bridge type converter
- FIG. 6B shows a class D converter
- FIG. 6C shows a DE class converter
- the rectifier circuit 22 of the present invention is not limited to the circuit configuration shown in FIG. 2, and may have a circuit configuration as shown in FIG. 7A shows a class E rectifier circuit
- FIG. 7B shows a double current rectifier circuit
- FIG. 7C shows a half-wave rectifier circuit
- FIG. 7D shows a double voltage.
- a rectifier circuit is shown.
- FIG. 1 shows a case where the matching circuit 12 is provided in the resonant power transmission apparatus 1.
- the present invention is not limited to this, and may be configured without the matching circuit 12 as shown in FIG.
- the resonance frequency fo and the resonance characteristic value Qo of the resonance type power supply 11 are determined from the output impedance Zo of the resonance type power supply 11 and the pass characteristic impedance Zt of the resonance type transmission antenna 13.
- the resonance frequency ft and the resonance characteristic value Qt of the resonant transmission antenna 13 are determined from the pass characteristic impedance Zt of the resonant transmission antenna 13 and the output impedance Zo of the resonant power supply 11.
- the present invention can be modified with any component of the embodiment or omitted with any component of the embodiment.
- the resonant coupling type power transmission system according to the present invention performs setting considering the variation of the resonance characteristic value due to the influence of the resonance type power supply and the receiving circuit, and achieves high efficiency of power transmission in the entire system with respect to the conventional apparatus. Therefore, the present invention is suitable for use in a resonance coupled power transmission system that performs power transmission using the resonance characteristics of a resonant transmission / reception antenna.
- Resonant power transmitter 1 Resonant power transmitter, 2 Resonant power receiver, 11 Resonant power source, 12 Matching circuit, 13 Resonant transmitting antenna, 21 Resonant receiving antenna, 22 Rectifier circuit, 23 Receiving circuit.
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Abstract
Description
√(Q1・Q2)>100 (1)
これにより、エネルギーの転送効率を下げることなく、第1,2の共振器構造間の距離を、その特徴的なサイズ(従来の電磁誘導による距離)よりも大きくすることができる。
すなわち、高周波回路では、回路ブロック毎にインピーダンスの整合をとるインタフェースが必要となる。一方、従来装置では、第1,2の共振器構造の共振特性値Q1,Q2のみを考慮していることから、第1の共振器構造と電力供給源との間、及び第2の共振器構造と外部負荷との間に、上記インタフェースが設けられることになる。この構成の場合、第1,2の共振器構造間では、高効率に電力伝送を行うことができる。しかしながら、電力供給源及び外部負荷を含むシステム全体としてみた場合、上記のようなインタフェースがあることで、電力損失が非常に大きくなる。
実施の形態1.
図1はこの発明の実施の形態1に係る共振結合型電力伝送システムの構成を示す図であり、図2は具体的な回路図である。
共振結合型電力伝送システムは、図1,2に示すように、共振型電力送信装置1及び共振型電力受信装置2から構成されている。なお図2に示す共振結合型電力伝送システムでは、後述する共振型電源11の共振周波数が2MHz以上である場合を示しているが、2MHz未満のものを用いてもよい。
そして、この2つの共振特性値Qo,Qtから、共振型電力送信装置1は共振特性値Qtx=√(Qo・Qt)を有することになる。
√(Qo・Qt)≒Qr (2)
0.5Qr≦√(Qo・Qt)≦1.5Qr (3)
しかしながら、本発明のように3つの共振特性値Qo,Qt,Qrに相関関係を持たせることで、電力伝送効率を下げることなく、共振型送受信アンテナ13,21間の距離を、従来の電磁誘導による距離よりも大きくすることができる。
k√(Qo・Qt)≒1 (4)
0.5≦k√(Qo・Qt)≦1.5 (5)
また、共振型電力受信装置2において、下式(6)を満たすように、各機能部の特性インピーダンスを設定する。具体的には下式(7)の範囲内であればよい。
k・Qr≒1 (6)
0.5≦k・Qr≦1.5 (7)
これにより、図4に示すように、システム全体としての電力伝送効率をより高めることができる。
従来装置は、上述したように、第1の共振器構造(共振型送信アンテナ)の共振特性値Q1と、第2の共振器構造(共振型受信アンテナ)の共振特性値Q2とを式(1)を満たすように高く設定したものである。一方、本発明では、共振型電源11の共振特性値Qo、共振型送信アンテナ13の共振特性値Qt及び共振型電力受信装置2の共振特性値Qrという3つの共振特性値に相関関係を持たせたものである。その結果、電力伝送効率を下げることなく、共振型送受信アンテナ13,21間の距離dを、従来の電磁誘導による距離よりも大きくすることができる。つまり、本発明では、従来装置の共振特性値Q1,Q2に相当する共振型送受信アンテナ13,21の共振特性値√(Qo・Qt),Qrが従来装置よりも低い場合であっても、遠距離へ高効率な電力伝送が可能である。以下、具体例を示す。
この場合、下式(8)の関係が成立する。
√(Qo・Qt)≒Qr≒5 (8)
k≒1/5=0.2 (9)
η≒k√(√(Qo・Qt)・Qr)=99% (10)
この場合、下式(11)の関係が成立する。
√(Qo・Qt)≒Qr≒50 (11)
k≒1/50=0.02 (12)
この場合、下式(13)の関係が成立する。
√(Qo・Qt)≒Qr≒100 (13)
k≒1/100=0.01 (14)
また、本発明の整流回路22は、図2に示す回路構成に限るものではなく、例えば図7に示すような回路構成としてもよい。ここで、図7(a)はE級整流回路を示し、図7(b)は倍電流整流回路を示し、図7(c)は半波整流回路を示し、図7(d)は倍電圧整流回路を示している。
Claims (10)
- 電力を供給する共振型電源、及び前記共振型電源により供給された電力を伝送する共振型送信アンテナを有する共振型電力送信装置と、
前記共振型送信アンテナにより伝送された電力を受信する共振型受信アンテナ、及び前記共振型受信アンテナにより受信された電力を負荷へ供給する受信回路を有する共振型電力受信装置とを備え、
前記共振型電源の共振特性値、前記共振型送信アンテナの共振特性値及び前記共振型電力受信装置の共振特性値に相関関係を持たせるように、各機能部の特性インピーダンスを設定した
ことを特徴とする共振結合型電力伝送システム。 - 前記共振型電源の共振特性値をQoとし、前記共振型送信アンテナの共振特性値をQtとし、前記共振型電力受信装置の共振特性値をQrとしたとき、0.5Qr≦√(Qo・Qt)≦1.5Qrを満たす
ことを特徴とする請求項1記載の共振結合型電力伝送システム。 - 前記共振型送信アンテナと前記共振型受信アンテナとの間の結合係数をkとしたとき、0.5≦k√(Qo・Qt)≦1.5を満たす
ことを特徴とする請求項2記載の共振結合型電力伝送システム。 - 前記共振型送信アンテナと前記共振型受信アンテナとの間の結合係数をkとしたとき、0.5≦k・Qr≦1.5を満たす
ことを特徴とする請求項2記載の共振結合型電力伝送システム。 - 前記共振型送信アンテナの共振周波数と前記共振型受信アンテナの共振周波数は異なる
ことを特徴とする請求項1記載の共振結合型電力伝送システム。 - 前記共振型電源の共振周波数は2MHz以上である
ことを特徴とする請求項1記載の共振結合型電力伝送システム。 - 前記共振型送信アンテナと前記共振型受信アンテナとの間の共振結合による電力伝送方式は、磁界、電界、電磁誘導のうちのいずれかである
ことを特徴とする請求項1記載の共振結合型電力伝送システム。 - 電力を供給する共振型電源、及び前記共振型電源により供給された電力を伝送する共振型送信アンテナを有する共振型電力送信装置と、
前記共振型送信アンテナにより伝送された電力を受信する共振型受信アンテナ、及び前記共振型受信アンテナにより受信された電力を負荷へ供給する受信回路を有する共振型電力受信装置とを備え、
前記共振型電力送信装置の共振特性値と前記共振型電力受信装置の共振特性値とを近づけるように、各機能部の特性インピーダンスを設定した
ことを特徴とする共振結合型電力伝送システム。 - 電力を供給する共振型電源と、
前記共振型電源により供給された電力を伝送する共振型送信アンテナとを有し、
前記共振型電源の共振特性値、前記共振型送信アンテナの共振特性値、及び、前記共振型送信アンテナにより伝送された電力を受信する共振型受信アンテナ、及び前記共振型受信アンテナにより受信された電力を負荷へ供給する受信回路を有する共振型電力受信装置の共振特性値に、相関関係を持たせるように、各機能部の特性インピーダンスを設定した
ことを特徴とする共振型電力送信装置。 - 電力を供給する共振型電源、及び前記共振型電源により供給された電力を伝送する共振型送信アンテナを有する共振型電力送信装置により伝送された電力を受信する共振型受信アンテナと、
前記共振型受信アンテナにより受信された電力を負荷へ供給する受信回路とを有し、
前記共振型電源の共振特性値、前記共振型送信アンテナの共振特性値及び自身の共振特性値に相関関係を持たせるように、各機能部の特性インピーダンスを設定した
ことを特徴とする共振型電力受信装置。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
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CN201480081667.7A CN106797143B (zh) | 2014-09-02 | 2014-09-02 | 谐振耦合型电力传输***、谐振型电力发送装置及谐振型电力接收装置 |
US15/320,215 US10158254B2 (en) | 2014-09-02 | 2014-09-02 | Resonant coupling power transmission system, resonance type power transmission device, and resonance type power reception device |
PCT/JP2014/073067 WO2016035141A1 (ja) | 2014-09-02 | 2014-09-02 | 共振結合型電力伝送システム、共振型電力送信装置及び共振型電力受信装置 |
JP2014555886A JP5738497B1 (ja) | 2014-09-02 | 2014-09-02 | 共振結合型電力伝送システム、共振型電力送信装置及び共振型電力受信装置 |
EP14901211.4A EP3190684B1 (en) | 2014-09-02 | 2014-09-02 | Resonance coupling power transmission system, resonance coupling power transmission device, and resonance coupling power reception device |
KR1020177006025A KR102236047B1 (ko) | 2014-09-02 | 2014-09-02 | 공진 결합형 전력 전송 시스템, 공진형 전력 송신 장치 및 공진형 전력 수신 장치 |
TW104112378A TWI515994B (zh) | 2014-09-02 | 2015-04-17 | 共振結合型電力傳送系統、共振型電力送信裝置及共振型電力受信裝置 |
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CN110546853A (zh) * | 2017-04-24 | 2019-12-06 | 三菱电机工程技术株式会社 | 谐振型电力接收装置 |
JP2020184824A (ja) * | 2019-05-07 | 2020-11-12 | 株式会社デンソー | 無線給電装置 |
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WO2017126112A1 (ja) * | 2016-01-22 | 2017-07-27 | 三菱電機エンジニアリング株式会社 | 電力伝送装置、高周波電源及び高周波整流回路 |
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EP3595130B1 (en) * | 2017-03-10 | 2022-01-12 | Mitsubishi Electric Engineering Company, Limited | Resonance-type power reception device |
WO2018163408A1 (ja) * | 2017-03-10 | 2018-09-13 | 三菱電機エンジニアリング株式会社 | 共振型電力送信装置及び共振型電力伝送システム |
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JP7061548B2 (ja) * | 2018-10-04 | 2022-04-28 | 株式会社日立産機システム | 共振型電源装置 |
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WO2018037566A1 (ja) * | 2016-08-26 | 2018-03-01 | マクセル株式会社 | 非接触受電装置、非接触送電装置および非接触送受電装置 |
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CN109643912B (zh) * | 2016-08-26 | 2022-08-30 | 麦克赛尔株式会社 | 非接触受电装置、非接触输电装置和非接触输受电装置 |
CN110546853A (zh) * | 2017-04-24 | 2019-12-06 | 三菱电机工程技术株式会社 | 谐振型电力接收装置 |
US11533790B2 (en) | 2017-10-12 | 2022-12-20 | Mitsubishi Electric Corporation | Induction cooker |
JP2020184824A (ja) * | 2019-05-07 | 2020-11-12 | 株式会社デンソー | 無線給電装置 |
JP7270212B2 (ja) | 2019-05-07 | 2023-05-10 | 株式会社デンソー | 無線給電装置 |
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KR20170049510A (ko) | 2017-05-10 |
JP5738497B1 (ja) | 2015-06-24 |
EP3190684A1 (en) | 2017-07-12 |
TW201539928A (zh) | 2015-10-16 |
CN106797143B (zh) | 2019-06-25 |
JPWO2016035141A1 (ja) | 2017-04-27 |
EP3190684A4 (en) | 2018-05-02 |
TWI515994B (zh) | 2016-01-01 |
US10158254B2 (en) | 2018-12-18 |
US20170155283A1 (en) | 2017-06-01 |
KR102236047B1 (ko) | 2021-04-02 |
EP3190684B1 (en) | 2019-11-06 |
CN106797143A (zh) | 2017-05-31 |
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