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WO2012039245A1 - Module de bobine pour transfert d'énergie électrique sans contact, bloc d'accumulateurs et dispositif de charge doté de ces éléments - Google Patents

Module de bobine pour transfert d'énergie électrique sans contact, bloc d'accumulateurs et dispositif de charge doté de ces éléments Download PDF

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Publication number
WO2012039245A1
WO2012039245A1 PCT/JP2011/069581 JP2011069581W WO2012039245A1 WO 2012039245 A1 WO2012039245 A1 WO 2012039245A1 JP 2011069581 W JP2011069581 W JP 2011069581W WO 2012039245 A1 WO2012039245 A1 WO 2012039245A1
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WO
WIPO (PCT)
Prior art keywords
coil
coil module
module
magnetic sheet
protrusion
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2011/069581
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English (en)
Japanese (ja)
Inventor
恭平 加田
幹弘 山下
一敬 鈴木
宇宙 松元
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Panasonic Corp
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 Panasonic Corp filed Critical Panasonic Corp
Publication of WO2012039245A1 publication Critical patent/WO2012039245A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2871—Pancake coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields

Definitions

  • the present invention includes a first coil wound in a planar shape and a magnetic sheet on which the first coil is disposed, and the first coil and a second coil disposed to face the first coil.
  • the present invention relates to a coil module for non-contact power transmission that transmits power by electromagnetic induction between and a battery pack and a charging device including the coil module.
  • a coil module for non-contact power transmission that performs power transmission without using a connection terminal is known.
  • Such a coil module performs power transmission by the action of electromagnetic induction generated between two coils arranged opposite to each other.
  • both the coil modules 100 and 200 are arranged to face each other in the vertical direction in FIG. 7, and the side from the coil module 200 toward the coil module 100 is referred to as “upper side”, and the coil module 100 toward the coil module 200. Let the side be “lower”.
  • the coil module 100 includes a magnetic sheet 110 and a planar first coil 120 provided on the lower surface 111 of the sheet 110.
  • the coil module 200 includes a magnetic sheet 210 and a planar second coil 220 provided on the upper surface 211 of the sheet 210.
  • the present invention has been made in view of such a situation, and the purpose thereof is a coil module for non-contact power transmission capable of reducing the amount of leakage magnetic flux between coils arranged facing each other, Another object of the present invention is to provide a battery pack and a charging device including the same.
  • the first aspect of the present invention is a coil module for non-contact power transmission.
  • the coil module includes a first coil wound in a planar shape and a magnetic sheet on which the first coil is disposed, and a second coil disposed opposite to the first coil. Electric power is transmitted to and from the coil by electromagnetic induction.
  • the magnetic sheet includes a protrusion that protrudes toward the second coil at the center of the first coil and at least one outside the first coil. According to this configuration, the amount of leakage magnetic flux between the first and second coils arranged to face each other is reduced.
  • a second aspect of the present invention is a battery pack that includes the above-described coil module for non-contact power transmission and a secondary battery that is charged by an induced electromotive force generated in a first coil of the coil module. .
  • a third aspect of the present invention is a charging device including the coil module for non-contact power transmission and a circuit board that supplies an alternating current to the first coil of the coil module.
  • Sectional drawing which shows the cross-section of the mobile telephone provided with the battery pack which incorporated the coil module for non-contact-type electric power transmission concerning 1st Embodiment of this invention, and a charging device.
  • the disassembled perspective view which shows the structure of the coil module of FIG. 1 incorporated in the battery pack.
  • FIG. 2 is a cross-sectional structure diagram showing a magnetic flux formed between the coil module of FIG. 1 built in the battery pack and the coil module disposed in the charging device facing the coil module.
  • Sectional drawing which shows the cross-section of the coil module for non-contact-type electric power transmission concerning 2nd Embodiment of this invention.
  • (A) And (b) is sectional drawing which shows the cross-section of the coil module for non-contact-type electric power transmission concerning other embodiment of this invention.
  • (A) And (b) is sectional drawing which shows the cross-section of the coil module for non-contact-type electric power transmission concerning other embodiment of this invention. Sectional drawing which shows the cross-section of the conventional coil module for non-contact-type electric power transmission, and the coil module facing this. Sectional drawing which shows the cross-section of the coil module for non-contact-type electric power transmission of a comparative example.
  • FIG. 1 shows each cross-sectional structure of the mobile phone 1 in which the battery pack 33 is built in and the charging device 2 for charging the secondary battery 36 of the battery pack 33.
  • FIG. 1 shows a state where the mobile phone 1 is placed on the upper side of the charging device 2 in order to charge the mobile phone 1.
  • the mobile phone 1 includes a housing 30 made of a non-magnetic material such as a resin material.
  • the housing 30 is provided with a display unit 31 for displaying various information and an operation unit 32 for operating the mobile phone 1.
  • a battery pack 33 serving as a power source for the mobile phone 1 is detachably housed in the housing 30.
  • the battery pack 33 includes a coil module 35, a secondary battery 36 electrically connected to the coil module 35, and a case 34 for storing these.
  • the charging device 2 includes a housing 10 made of a non-magnetic material such as a resin material, and the housing 10 is provided with a coil module 11 and a circuit board 12.
  • the coil module 11 is referred to as a primary coil module 11
  • the coil module 35 is referred to as a secondary coil module 35.
  • the primary side coil module 11 or the secondary side coil module 35 corresponds to a “coil module for non-contact power transmission”.
  • the primary coil module 11 of the charging device 2 and the secondary coil module 35 of the mobile phone 1 face each other in close proximity.
  • an alternating current having a predetermined frequency is supplied from the circuit board 12 to the primary coil module 11, an alternating magnetic flux is generated in the primary coil module 11. Due to this alternating magnetic flux, an induced electromotive force having the same frequency as the above-mentioned frequency is generated in the secondary coil module 35.
  • the alternating current generated by the induced electromotive force is rectified into a direct current, and the direct current is supplied to the secondary battery 36, whereby the secondary battery 36 is charged. Then, based on the secondary battery 36 being fully charged, the charging apparatus 2 stops charging the mobile phone 1.
  • the configuration of the secondary coil module 35 will be described with reference to FIGS.
  • the secondary coil module 35 includes a planar first coil 41 and a magnetic sheet 40 on which the first coil 41 is disposed.
  • the magnetic sheet 40 is formed by sintering soft magnetic ferrite powder.
  • the first coil 41 is formed by winding a conductive wire in an annular shape. In the center of the first coil 41, an air core portion 45 which is a hollow space is provided.
  • the magnetic sheet 40 on which the first coil 41 is disposed includes a flat portion 42 formed in an annular shape in plan view.
  • a cylindrical outer protrusion 44 is provided on the outer peripheral edge of the flat portion 42 so as to protrude upward from the flat portion 42, that is, toward the primary coil module 11 (see FIG. 1).
  • the inner projecting portion 43 and the outer projecting portion 44 project perpendicularly to the plane portion 42.
  • the inner protrusion 43 is formed with a recess 47 that opens upward and is recessed downward in the cross-sectional shape. It should be noted that the thickness T1 of the flat portion 42 and the thickness T2 of the inner protrusion 43 are equal to each other.
  • the outer protrusion 44 is provided with an annular extension 46 extending outward from the lower end thereof. The thickness T3 of the outer protrusion 44 and the thickness T1 of the flat surface 42 are equal to each other.
  • the inner protrusion 43 is inserted through the air core 45.
  • the outer peripheral surface of the inner protrusion 43 and the inner periphery of the air core 45 are close to each other.
  • the inner peripheral surface of the outer protrusion 44 and the outer peripheral edge of the first coil 41 are close to each other. That is, the inner peripheral surface of the outer protrusion 44 and the outer periphery of the first coil 41 are in contact with each other, or the outer protrusion via a slight gap due to a dimensional error of the outer protrusion 44 and the first coil 41 or the like.
  • the inner peripheral surface of the portion 44 and the outer peripheral edge of the first coil 41 are adjacent to each other.
  • the primary coil module 11 is formed by sintering soft magnetic ferrite powder in the same manner as the secondary coil module 35.
  • the primary coil module 11 includes a magnetic sheet 50 and a planar second coil 51 attached to the magnetic sheet 50. Since the magnetic sheet 50 and the second coil 51 are substantially the same in configuration as the magnetic sheet 40 and the first coil 41, the corresponding parts are denoted by reference numerals in the 50s and the description thereof is omitted. . As shown in FIG. 3, the outer dimension of the inner protrusion 43 of the magnetic sheet 40 is larger than the outer dimension of the inner protrusion 53 of the magnetic sheet 50.
  • a magnetic circuit formed between the primary coil module 11 and the secondary coil module 35 will be described.
  • the second coil 51 moves from the inner peripheral side of the first coil 41 toward the inner peripheral side of the first coil 41, and the second coil from the outer peripheral side of the first coil 41 through the magnetic sheet 40.
  • a magnetic path is formed which faces the outer peripheral side of 51 and returns to the inner peripheral side of the second coil 51 via the magnetic sheet 50.
  • a magnetic circuit having a magnetic flux flow opposite to that of the magnetic circuit is formed.
  • the above-mentioned magnetic circuit and the magnetic flux opposite to this magnetic circuit is formed alternately.
  • the magnetic flux generated in the second coil 51 passes through the inner protrusion 53 and toward the inner protrusion 43.
  • the magnetic flux toward the air core portion 55 of the second coil 51 is directed toward the secondary coil module 35 by passing through the inner protrusion portion 53.
  • the magnetic flux emitted from the inner protrusion 53 is directed toward the inner protrusion 43.
  • the magnetic flux of the primary coil module 11 reaches the secondary coil module 35
  • the magnetic flux passes through the flat portion 42 via the inner protrusion 43, and then passes from the outer protrusion 44 to the second coil. Head to 51.
  • the outer protruding portion 44 reduces the amount of leakage magnetic flux that flows outside the secondary coil module 35.
  • the magnetic flux which goes to the 2nd coil 51 from the outer side projection part 44 goes to the outer side projection part 54 of the magnetic sheet 50, the quantity of the leakage magnetic flux which flows outside both the coil modules 11 and 35 decreases.
  • the magnetic sheet 40 when the magnetic flux is directed from the secondary coil module 35 to the primary coil module 11, the magnetic sheet 40 is directed toward the air core 45 of the first coil 41.
  • the flowing magnetic flux flows from the inner protrusion 43 toward the primary coil module 11. Therefore, the amount of leakage magnetic flux between the two coil modules 11 and 35 can be reduced.
  • the primary coil module 11 is similarly provided with an inner protrusion 53 and an outer protrusion 54. Therefore, the magnetic flux between the coil modules 11 and 35 flows between the inner protrusions 43 and 53 and between the outer protrusions 44 and 54, respectively. Therefore, the amount of leakage magnetic flux between both the coil modules 11 and 35 can be further reduced.
  • the air core coil 310 is attached to the magnetic sheet 300 formed into a flat plate shape, and the portion 320 outside the air core coil 310 of the magnetic sheet 300. It is conceivable to bend and attach to the case 34. According to such a configuration, the amount of leakage magnetic flux can be reduced as compared with the configuration shown in FIG.
  • the portion 320 is inclined outward in the radial direction toward the upper side, when the magnetic flux from the portion 320 flows toward the primary coil module 11 (see FIG. 3), the magnetic flux is along the portion 320. The magnetic flux may flow and spread outward. As a result, the effect of reducing the leakage magnetic flux flowing outside the coil modules 11 and 35 is reduced. Note that the same problem occurs even when the configuration of FIG. 8 is applied to the primary coil module 11.
  • the magnetic flux flowing from the outer protrusion 44 is lower than the configuration shown in FIG. (See Fig. 3). For this reason, the amount of leakage magnetic flux between the two coil modules 11 and 35 can be reduced as compared with the configuration shown in FIG.
  • the secondary coil module 35 is built in the battery pack 33. Therefore, the charging efficiency of the secondary battery 36 of the battery pack 33 by the charging device 2 can be improved.
  • the outer protrusion 44 is provided with an extension 46. Therefore, when the magnetic flux flows from the primary side coil module 11 toward the secondary side coil module 35 as compared with the outer side protruding part in which the extension part 46 is omitted, it flows from the outer side protruding part 54 toward the outer side protruding part 44. The area receiving the magnetic flux increases. For this reason, the amount of leakage magnetic flux between the two coil modules 11 and 35 can be further reduced. Further, when the magnetic flux flows from the secondary coil module 35 toward the primary coil module 11, an effect similar to the effect produced by the extension 46 of the outer projection 44 is obtained by the extension 56 of the outer projection 54. .
  • the thickness T1 of the planar portion 42 of the magnetic sheet 40, the thickness T2 of the inner protrusion 43, and the thickness T3 of the outer protrusion 44 are formed to be equal to each other.
  • a magnetic sheet 60 is used instead of the magnetic sheet 40.
  • the magnetic sheet 60 is formed so that the thickness of each part of the sheet 60 is different. The configuration described below can also be applied to the primary coil module 11.
  • the magnetic sheet 60 includes a flat surface portion 62 in which the air-core coil 61 is disposed and formed in an annular shape in plan view.
  • An inner protrusion 63 having a cylindrical outer shape extending from the flat portion 62 toward the opening is provided on the inner peripheral edge of the flat portion 62.
  • a cylindrical outer protrusion 64 is provided on the outer peripheral edge of the flat portion 62 and extends from the flat portion 62 toward the opening.
  • the inner protrusion 63 has a protruding shape that protrudes from the bottom surface 66 of the magnetic sheet 60 in the cross-sectional shape.
  • the inner protrusion 63 is not formed with a recess like the inner protrusion 43 of the first embodiment.
  • the inner projecting portion 63 is formed so that the portion corresponding to the air core portion 65 of the air core coil 61 is directed to the opening side and the thickness is increased more than the flat surface portion 62. Therefore, the thickness H1 of the inner protrusion 63 is thicker than the thickness T1 of the flat portion 62. Further, the thickness H3 of the inner protrusion 63 is thicker than the thickness T1 of the flat portion 62.
  • the outer protruding portion 64 has a protruding shape that protrudes from the bottom surface 66 of the magnetic sheet 60 toward the opening in the cross-sectional shape. That is, the outer protrusion 64 is formed so that the outer peripheral edge of the flat portion 62 is thicker than the portion of the flat portion 62 where the air-core coil 61 is disposed. Therefore, the thickness H2 of the outer protrusion 64 is thicker than the thickness T1 of the flat portion 62. Further, the thickness H4 of the outer protrusion 64 is thicker than the thickness T1 of the flat portion 62.
  • the inner protrusion 63 is formed by locally increasing the thickness of the magnetic sheet 60. For this reason, the amount of magnetic flux flowing from the air core coil 61 toward the air core portion 65 can be increased by the inner protrusion portion 63 as compared with the inner protrusion portion 43 of the first embodiment. For this reason, the amount of leakage magnetic flux between the coil modules 11 and 35 can be further reduced.
  • the outer protrusion 64 is formed by locally increasing the thickness of the magnetic sheet 60. For this reason, compared with the structure in which the recessed part like the inner side projection part 43 is provided, the magnetic flux amount which flows into the outer side projection part 64 can be increased. For this reason, the amount of leakage magnetic flux between the coil modules 11 and 35 can be further reduced.
  • the outer side protrusion part 44 can also be abbreviate
  • the flat portion 42 extends outward from the outer peripheral edge of the first coil 41 in the radial direction of the first coil 41.
  • the inner protrusion 43 can be omitted from the magnetic sheet 40.
  • an effect according to the effect (1) of the first embodiment can be obtained.
  • the configurations shown in FIGS. 5A and 5B can also be applied to the primary coil module 11.
  • the primary coil module 11 having both the protrusions 53 and 54 is referred to as a “first primary coil module”, and the one having only the inner protrusion 53 is referred to as a “second primary coil module”.
  • the one having only the outer projection 54 is referred to as a “third primary coil module”.
  • the secondary coil module 35 having both protrusions 43 and 44 is referred to as a “first secondary coil module”, and the one having only the inner protrusion 43 is referred to as a “second secondary coil module”.
  • a module having only the outer projection 44 is referred to as a “third secondary coil module”.
  • the outer protrusion 64 can be omitted from the magnetic sheet 60 as shown in FIG. In this case, it is preferable that the planar portion 62 extends outward from the outer peripheral edge of the first coil 61 in the radial direction of the first coil 61.
  • the amount of magnetic flux leakage to the outside in the radial direction of the first coil 61 can be reduced as compared with the coil modules 100 and 200 shown in FIG. Further, as shown in FIG. 6B, the inner protrusion 63 can be omitted from the magnetic sheet 60. Also in the configuration shown in FIGS. 6A and 6B, the effect according to the effect (1) of the first embodiment can be obtained.
  • the configurations shown in FIGS. 6A and 6B can also be applied to the primary coil module 11.
  • the outer protrusions 44, 54, 64 may be shaped to incline outward in the radial direction from the flat portions 42, 52, 62 toward the opening side. Even in this case, the effect (1) of the first embodiment can be achieved.
  • the magnetic sheets 40, 50, 60 are formed by sintering ferrite powder having soft magnetism, but the forming method of the magnetic sheets 40-60 is not limited thereto.
  • the ferrite powder can be formed into a sheet by using a polymer material such as rubber as a binding material.
  • the material forming the magnetic sheets 40 to 60 is not limited to ferrite powder, and may be other soft magnetic materials such as silicon steel plate, permalloy, iron and the like.
  • information indicating the charging state of the secondary battery 36 between the charging device 2 and the mobile phone 1 by the electromagnetic induction between the primary coil module 11 and the secondary coil module 35 is an electric signal. Can also be sent and received.
  • input / output of power for charging the secondary battery 36 as in each of the above embodiments is omitted by electromagnetic induction between the coil module for non-contact power transmission and the coil module facing the coil module. Thus, only the transmission and reception of the electric signal can be performed.

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

Abstract

L'invention concerne un module de bobine (35) pour assurer un transfert d'énergie électrique sans contact, ledit module étant doté d'une première bobine (41) embobinée dans un plan et une feuille magnétique (40) sur laquelle la première bobine est disposée. Le module de bobine (35) transfère, par induction électromagnétique, l'énergie électrique entre la première bobine et une seconde bobine (51) qui est disposée de manière à être face à la première bobine. La feuille magnétique (40) comprend des protubérances (44, 44) qui font saillie vers la seconde bobine (51) et qui sont situées au centre de la première bobine (41) et/ou en dehors de la première bobine (41).
PCT/JP2011/069581 2010-09-24 2011-08-30 Module de bobine pour transfert d'énergie électrique sans contact, bloc d'accumulateurs et dispositif de charge doté de ces éléments Ceased WO2012039245A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010213949A JP2012070557A (ja) 2010-09-24 2010-09-24 非接触式電力伝送用のコイルモジュールおよびこれを具備する電池パック
JP2010-213949 2010-09-24

Publications (1)

Publication Number Publication Date
WO2012039245A1 true WO2012039245A1 (fr) 2012-03-29

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PCT/JP2011/069581 Ceased WO2012039245A1 (fr) 2010-09-24 2011-08-30 Module de bobine pour transfert d'énergie électrique sans contact, bloc d'accumulateurs et dispositif de charge doté de ces éléments

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JP (1) JP2012070557A (fr)
TW (1) TW201214915A (fr)
WO (1) WO2012039245A1 (fr)

Cited By (8)

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CN108199436A (zh) * 2018-01-15 2018-06-22 杭州电子科技大学 无线充电系统
CN108306428A (zh) * 2018-01-15 2018-07-20 杭州电子科技大学 基于无线充电的充电设备位置检测方法
CN108321946A (zh) * 2018-01-15 2018-07-24 杭州电子科技大学 无线充电装置
CN108390463A (zh) * 2018-01-15 2018-08-10 杭州电子科技大学 基于无线充电的充电设备位置检测装置
CN108565982A (zh) * 2018-06-13 2018-09-21 北京有感科技有限责任公司 线圈绕组结构和无线供电系统
WO2019051109A1 (fr) 2017-09-06 2019-03-14 Wireless Advanced Vehicle Electrification, Inc. Tapis de transfert d'énergie sans fil à cheminée en ferrite
EP3525220A4 (fr) * 2016-10-06 2020-04-08 LG Innotek Co., Ltd. Bloc bobine pour charge sans fil et son procédé de fabrication
US11437855B2 (en) 2017-12-22 2022-09-06 Wireless Advanced Vehicle Electrification, Llc Wireless power transfer pad with multiple windings and magnetic pathway between windings

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WO2012101729A1 (fr) 2011-01-26 2012-08-02 パナソニック株式会社 Module de charge sans contact et instrument de charge sans contact
CN106888038A (zh) 2011-06-14 2017-06-23 松下电器产业株式会社 通信装置
JP5988146B2 (ja) * 2011-11-15 2016-09-07 パナソニックＩｐマネジメント株式会社 伝送コイル及び携帯無線端末
US10204734B2 (en) 2011-11-02 2019-02-12 Panasonic Corporation Electronic device including non-contact charging module and near field communication antenna
JP2013169122A (ja) 2012-02-17 2013-08-29 Panasonic Corp 非接触充電モジュール及びそれを備えた携帯端末
CN104521100B (zh) * 2012-04-10 2017-12-12 松下知识产权经营株式会社 无线电力传输装置、供电装置以及受电装置
JP5885570B2 (ja) * 2012-04-13 2016-03-15 キヤノン株式会社 無線電力伝送システム、無線電力伝送装置、無線電力伝送方法、無線電力伝送装置の制御方法、プログラム。
JP6112383B2 (ja) 2012-06-28 2017-04-12 パナソニックＩｐマネジメント株式会社 携帯端末
JP6094016B2 (ja) * 2013-10-10 2017-03-15 ホシデン株式会社 無接点給電機構および無接点給電機構用二次コイル
EP3528267B1 (fr) * 2014-03-24 2021-01-27 Apple Inc. Protection magnétique dans un transfert de puissance inductive
KR102166881B1 (ko) * 2014-04-03 2020-10-16 엘지이노텍 주식회사 무선 전력 송신 장치
JP2016061656A (ja) * 2014-09-17 2016-04-25 株式会社東芝 自動分析装置
CN104319076B (zh) * 2014-10-08 2018-03-23 中兴通讯股份有限公司 一种非接触变压器
KR102031615B1 (ko) 2017-03-28 2019-10-15 티디케이가부시기가이샤 자성 코어용 연자성 박대, 자성 코어, 코일 유닛 및 와이어리스 전력 전송 유닛
JP7318309B2 (ja) * 2019-05-28 2023-08-01 京セラドキュメントソリューションズ株式会社 画像形成装置

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WO2008156025A1 (fr) * 2007-06-20 2008-12-24 Panasonic Electric Works Co., Ltd. Dispositif de transmission d'énergie sans contact et procédé de fabrication de son secondaire

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JP2008235862A (ja) * 2007-02-20 2008-10-02 Seiko Epson Corp コイルユニット及び電子機器
WO2008156025A1 (fr) * 2007-06-20 2008-12-24 Panasonic Electric Works Co., Ltd. Dispositif de transmission d'énergie sans contact et procédé de fabrication de son secondaire

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3525220A4 (fr) * 2016-10-06 2020-04-08 LG Innotek Co., Ltd. Bloc bobine pour charge sans fil et son procédé de fabrication
WO2019051109A1 (fr) 2017-09-06 2019-03-14 Wireless Advanced Vehicle Electrification, Inc. Tapis de transfert d'énergie sans fil à cheminée en ferrite
EP3679639A4 (fr) * 2017-09-06 2021-06-02 Wireless Advanced Vehicle Electrification, Inc. Tapis de transfert d'énergie sans fil à cheminée en ferrite
US11437855B2 (en) 2017-12-22 2022-09-06 Wireless Advanced Vehicle Electrification, Llc Wireless power transfer pad with multiple windings and magnetic pathway between windings
US11764613B2 (en) 2017-12-22 2023-09-19 Wireless Advanced Vehicle Electrification, Llc Wireless power transfer pad with multiple windings and magnetic pathway between windings
CN108199436A (zh) * 2018-01-15 2018-06-22 杭州电子科技大学 无线充电系统
CN108306428A (zh) * 2018-01-15 2018-07-20 杭州电子科技大学 基于无线充电的充电设备位置检测方法
CN108321946A (zh) * 2018-01-15 2018-07-24 杭州电子科技大学 无线充电装置
CN108390463A (zh) * 2018-01-15 2018-08-10 杭州电子科技大学 基于无线充电的充电设备位置检测装置
CN108565982A (zh) * 2018-06-13 2018-09-21 北京有感科技有限责任公司 线圈绕组结构和无线供电系统
CN108565982B (zh) * 2018-06-13 2024-01-09 合肥有感科技有限责任公司 线圈绕组结构和无线供电系统

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