WO2021080009A1 - Dispositif de transmission d'énergie, dispositif de réception d'énergie et système de transmission d'énergie sans fil - Google Patents

Dispositif de transmission d'énergie, dispositif de réception d'énergie et système de transmission d'énergie sans fil Download PDF

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Publication number
WO2021080009A1
WO2021080009A1 PCT/JP2020/039979 JP2020039979W WO2021080009A1 WO 2021080009 A1 WO2021080009 A1 WO 2021080009A1 JP 2020039979 W JP2020039979 W JP 2020039979W WO 2021080009 A1 WO2021080009 A1 WO 2021080009A1
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WO
WIPO (PCT)
Prior art keywords
power transmission
electrodes
power
electrode
power receiving
Prior art date
Application number
PCT/JP2020/039979
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English (en)
Japanese (ja)
Inventor
悟 菊池
山本　浩司
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to JP2021553578A priority Critical patent/JP7203332B2/ja
Publication of WO2021080009A1 publication Critical patent/WO2021080009A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/05—Circuit arrangements or systems for wireless supply or distribution of electric power using capacitive coupling
    • 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
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields

Definitions

  • Wireless power transmission technology includes methods such as an electromagnetic induction method and an electric field coupling method.
  • an electric field coupling method wireless power transmission system AC power is wirelessly transmitted from the pair of power transmission electrodes to the pair of power receiving electrodes in a state where the pair of power transmission electrodes and the pair of power receiving electrodes face each other.
  • Such a wireless power transmission system based on an electric field coupling method is used, for example, in an application in which power is transmitted from a pair of power transmission electrodes provided on a road surface or a floor surface to a load.
  • Patent Document 1 discloses an example of a wireless power transmission system based on such an electric field coupling method.
  • the present disclosure provides a technique capable of suppressing leakage of an electric field around a power transmitting electrode or a power receiving electrode.
  • the above-mentioned comprehensive or specific embodiment may be realized by a system, a method, an integrated circuit, a computer program, or a recording medium. Alternatively, it may be realized by any combination of systems, devices, methods, integrated circuits, computer programs and recording media.
  • Back side means the side opposite to the side where the power receiving device that receives power wirelessly from the power transmitting device is located.
  • the back electrode is connected to a portion in the power transmission circuit that bears a potential between the potential of the first terminal and the potential of the second terminal. Therefore, the potential of the back electrode fluctuates with an amplitude smaller than the potential of the first power transmission electrode and the potential of the second power transmission electrode during power transmission.
  • the above-mentioned structure can be applied not only to the power transmission device but also to the power receiving device.
  • the same electric field suppression effect can be obtained by providing the back electrode.
  • the present disclosure includes the following power receiving devices.
  • the power receiving circuit 210 includes a first terminal 211 connected to a plurality of first power receiving electrodes 220a and a second terminal 212 connected to the plurality of second power receiving electrodes 220b.
  • the power receiving circuit 210 converts the AC power input from the first terminal 211 and the second terminal 212 into other power such as DC power and outputs the AC power.
  • the back electrode 230 is connected to a portion 213 in the power receiving circuit 210 that has a potential between the potential of the first terminal 211 and the potential of the second terminal 212.
  • each side electrode 240 is also connected to a portion 213 in the power receiving circuit 210 that has a potential between the potential of the first terminal 211 and the potential of the second terminal 212.
  • the matching circuit 180 includes a first terminal 180a and a second terminal 180b.
  • the matching circuit 180 includes a first inductor Lt1 connected to the first terminal 180a, a second inductor Lt2 connected to the second terminal 180b, wiring between the first terminal 180a and the first inductor Lt1, and a first. It includes a first capacitor Ct1 and a second capacitor Ct2 connected between the wiring between the two terminals 180b and the second inductor Lt2.
  • the matching circuit 180 in this example further includes a third capacitor Ct3, a fourth capacitor Ct4, and a third inductor Lt3.
  • the third capacitor Ct3 is connected as a series circuit element between the first inductor Lt1 and one of the output terminals of the power conversion circuit 170.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

La présente invention concerne un dispositif de transmission d'énergie comprenant : une pluralité de premières électrodes de transmission d'énergie et une pluralité de secondes électrodes de transmission d'énergie disposées en alternance dans une première direction s'étendant le long d'une surface de disposition d'électrode ; un circuit de transmission d'énergie comprenant une première borne connectée à la pluralité de premières électrodes de transmission d'énergie et une seconde borne connectée à la pluralité de secondes électrodes de transmission d'énergie, le circuit de transmission d'énergie délivrant une énergie de courant alternatif en provenance de la première borne et de la seconde borne ; et une électrode côté arrière disposée sur le côté arrière de la pluralité de premières électrodes de transmission d'énergie et de la pluralité de secondes électrodes de transmission d'énergie avec un espace entre l'électrode côté arrière et lesdites électrodes, l'électrode côté arrière étant connectée à une partie ayant un potentiel qui se situe entre le potentiel de la première borne et le potentiel de la seconde borne dans le circuit de transmission d'énergie.
PCT/JP2020/039979 2019-10-25 2020-10-23 Dispositif de transmission d'énergie, dispositif de réception d'énergie et système de transmission d'énergie sans fil WO2021080009A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2021553578A JP7203332B2 (ja) 2019-10-25 2020-10-23 送電装置、受電装置、および無線電力伝送システム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-194391 2019-10-25
JP2019194391 2019-10-25

Publications (1)

Publication Number Publication Date
WO2021080009A1 true WO2021080009A1 (fr) 2021-04-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/039979 WO2021080009A1 (fr) 2019-10-25 2020-10-23 Dispositif de transmission d'énergie, dispositif de réception d'énergie et système de transmission d'énergie sans fil

Country Status (2)

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JP (1) JP7203332B2 (fr)
WO (1) WO2021080009A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013105312A1 (fr) * 2012-01-10 2013-07-18 株式会社村田製作所 Système transmetteur de puissance
JP2014100059A (ja) * 2011-11-14 2014-05-29 Murata Mfg Co Ltd 電力伝送システム
JP2018164322A (ja) * 2017-03-24 2018-10-18 パナソニックＩｐマネジメント株式会社 送電装置および無線電力伝送システム
JP2018207766A (ja) * 2017-06-07 2018-12-27 パナソニックＩｐマネジメント株式会社 電極ユニット、送電装置、受電装置、電子機器、移動体、および無線電力伝送システム
JP2019176697A (ja) * 2018-03-29 2019-10-10 パナソニックＩｐマネジメント株式会社 電極ユニット、送電装置、受電装置、および無線電力伝送システム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10862681B2 (en) * 2017-04-04 2020-12-08 Microsoft Technology Licensing, Llc Optimized sign out for single account services

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014100059A (ja) * 2011-11-14 2014-05-29 Murata Mfg Co Ltd 電力伝送システム
WO2013105312A1 (fr) * 2012-01-10 2013-07-18 株式会社村田製作所 Système transmetteur de puissance
JP2018164322A (ja) * 2017-03-24 2018-10-18 パナソニックＩｐマネジメント株式会社 送電装置および無線電力伝送システム
JP2018207766A (ja) * 2017-06-07 2018-12-27 パナソニックＩｐマネジメント株式会社 電極ユニット、送電装置、受電装置、電子機器、移動体、および無線電力伝送システム
JP2019176697A (ja) * 2018-03-29 2019-10-10 パナソニックＩｐマネジメント株式会社 電極ユニット、送電装置、受電装置、および無線電力伝送システム

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Publication number Publication date
JP7203332B2 (ja) 2023-01-13
JPWO2021080009A1 (fr) 2021-04-29

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