WO2013125372A1 - Unité de bobine et système d'alimentation électrique sans contact - Google Patents

Unité de bobine et système d'alimentation électrique sans contact Download PDF

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Publication number
WO2013125372A1
WO2013125372A1 PCT/JP2013/053046 JP2013053046W WO2013125372A1 WO 2013125372 A1 WO2013125372 A1 WO 2013125372A1 JP 2013053046 W JP2013053046 W JP 2013053046W WO 2013125372 A1 WO2013125372 A1 WO 2013125372A1
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WO
WIPO (PCT)
Prior art keywords
coil
coil unit
storage space
housing
resin
Prior art date
Application number
PCT/JP2013/053046
Other languages
English (en)
Japanese (ja)
Inventor
未規 小泉
Original Assignee
住友電気工業株式会社
住友電装株式会社
株式会社オートネットワーク技術研究所
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 住友電気工業株式会社, 住友電装株式会社, 株式会社オートネットワーク技術研究所 filed Critical 住友電気工業株式会社
Publication of WO2013125372A1 publication Critical patent/WO2013125372A1/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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • 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
    • H01F27/02—Casings
    • H01F27/022—Encapsulation
    • 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
    • H02J50/10—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
    • 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
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the present invention relates to a coil unit that performs at least one of power transmission and power reception by electromagnetic induction, and a non-contact power feeding system having the coil unit on the power transmission side and the power reception side.
  • Non-Patent Document 1 As a coil unit used for a non-contact power transmission and reception system by electromagnetic induction, one having a coil and a capacitor electrically connected to the coil is known (see, for example, Non-Patent Document 1). Since a relatively large air gap exists between the power transmission coil and the power reception coil, the coupling coefficient is low, the leakage inductance is large, and the power supply efficiency is reduced. Therefore, a capacitor is connected to the coil to form a resonant circuit, and the resonant circuit is intended to improve the feeding efficiency.
  • the coil unit needs to have strength.
  • An object of the present invention is to provide a coil unit capable of securing strength while unitizing a coil and a capacitor.
  • the coil unit according to the embodiment of the present invention is a coil unit that performs at least one of power transmission and power reception by electromagnetic induction, and the coil, a capacitor electrically connected to the coil, and nonmagnetic
  • the housing is made of a material and has an opening at one side, and the internal space is divided by the partition wall into a first housing space in which the coil is housed and a second housing space in which the capacitor is housed, and the opening And a lid for closing an area corresponding to the second storage space, wherein the first storage space is filled with resin so as to cover the coil stored in the first storage space, and the resin is stored in the first storage space. It is characterized in that it is hardened inside the space.
  • a coil unit capable of securing strength while unitizing a coil and a capacitor.
  • the coil unit according to the embodiment of the present invention is a coil unit that performs at least one of power transmission and power reception by electromagnetic induction, and a coil and a capacitor electrically connected to the coil And a housing made of a nonmagnetic material and having an opening at one side, and the internal space thereof being divided by the partition wall into a first housing space in which the coil is housed and a second housing space in which the capacitor is housed. And a lid closing an area corresponding to the second storage space among the openings, and the first storage space is filled with a resin so as to cover the coil stored in the first storage space, and the resin is It is characterized in that it is cured inside the first storage space.
  • the rigidity is increased and the strength of the coil unit is improved.
  • the second storage space is closed by the lid, so that the capacitor can be protected, and the first storage space can be filled with a resin and the coil can be protected by hardening the resin.
  • the housing may be divided into a first storage space and a plurality of second storage spaces by the plurality of partition walls.
  • the rigidity of the casing is further enhanced by the plurality of partition walls, and the strength of the coil unit is further improved.
  • electromagnetic induction does not mean only the “electromagnetic induction method” which is often used when the gap between the power transmission side and the power reception side is close, and the gap It is used in the sense that it can also transmit power even when it is relatively large, including the so-called “resonance system”.
  • the housing extends from the bottom to form the bottom of the first and second storage spaces, the side wall extending from each side of the bottom, and two opposing side walls. And the partition wall portion having the same height as the side wall portion.
  • the side wall portion of the housing is provided with a lead-out portion of a wire connected to the coil and the capacitor.
  • a takeout portion By providing such a takeout portion, connection of the wiring to the coil unit can be easily performed, and mounting on various devices becomes easy.
  • the housing is made of a metal nonmagnetic material containing aluminum or a resin material in which a region facing the first storage space is covered with a metal foil. If the casing is made of these materials, the magnetic flux leakage from the coil can be shielded to increase the coupling coefficient, and the strength can be ensured while achieving weight reduction.
  • a lid made of a resin is further provided so as to cover the resin filled in the first storage space.
  • the strength of the coil unit can be further improved without reducing the coupling coefficient.
  • a non-contact power feeding system includes the above-described coil unit mounted on a vehicle and the above-described coil unit installed near the ground, and the coil unit on the vehicle side and the ground
  • the coil units on the side are arranged such that the opening sides of the casing face each other. The reason for arranging in this way is that when the bottom of the case is arranged facing the other, the coupling coefficient of the magnetic field decreases.
  • FIG. 1 is a block diagram which shows the non-contact electric power feeding system which concerns on this embodiment.
  • the noncontact power feeding system includes a vehicle 1 and a power feeding device 11.
  • vehicle 1 includes a coil unit CU ⁇ b> 1, a rectifier 3, and a capacitor 5.
  • the configuration of the vehicle 1 is not limited to the configuration shown in FIG. 1 as long as the vehicle is driven by a motor.
  • it includes a plug-in hybrid vehicle including a motor and an internal combustion engine.
  • the coil unit CU1 is connected to the storage battery 5 via the rectifier 3.
  • the coil unit CU1 includes a coil L1 and a capacitor C1 (resonance capacitor) electrically connected to the coil L1.
  • the capacitor C1 is connected in series to the coil L1.
  • the capacitor C1 may be connected in parallel to the coil L1.
  • the power supply device 11 includes a power supply 13, an inverter unit 15, and a coil unit CU2.
  • the coil unit CU2 is connected to the power supply 13 via the inverter unit 15.
  • the coil unit CU2 includes a coil L2 and a capacitor C2 (resonance capacitor) electrically connected to the coil L2.
  • the capacitor C2 is connected in series to the coil L2.
  • the capacitor C2 may be connected in parallel to the coil L2.
  • the coil unit CU1 receives power from the coil unit CU2 (coil L2) contactlessly by electromagnetic induction.
  • the rectifier 3 rectifies the AC power extracted by the coil unit CU1 and outputs the rectified power to the capacitor 5.
  • the capacitor 5 is a rechargeable DC power source, and includes, for example, a secondary battery such as lithium ion or nickel hydrogen. A large capacity capacitor can also be adopted as the capacitor 5.
  • Coil unit CU1 is mounted, for example, at the lower part of the vehicle body.
  • the power source 13 is a power source external to the vehicle, and is, for example, a commercial power source.
  • the inverter unit 15 converts the power received from the power supply 13 into power of a predetermined frequency, and supplies the converted power of the predetermined frequency to the coil unit CU2.
  • Coil unit CU2 is installed, for example, near the ground.
  • the coil unit CU2 (coil L2) transmits power to the coil unit CU1 (coil L1) by electromagnetic induction.
  • FIGS. 2 and 3 are perspective views showing the coil unit.
  • FIG. 4 is an exploded perspective view showing the coil unit.
  • illustration of the lid 23 and resin 45 which are mentioned later is abbreviate
  • the coil unit CU1 and the coil unit CU2 have the same structure.
  • the coil units CU1 and CU2 include a housing 21 and a lid 23 in addition to the coils L1 and L2 and the capacitors C1 and C2 described above.
  • the coils L ⁇ b> 1 and L ⁇ b> 2 are configured by the conducting wire 33 wound around the core 31.
  • the core 31 is made of a magnetic material such as ferrite.
  • the core 31 has a flat plate shape.
  • a litz wire can be used for the lead 33.
  • the capacitors C1 and C2 are formed of a plurality of capacitor elements 35.
  • the plurality of capacitor elements 35 are mounted on the substrate 37.
  • the housing 21 is a member made of a nonmagnetic material in which the coils L1 and L2 and the capacitors C1 and C2 are accommodated, and has a rectangular shape in a plan view, and is a boxed member with an opening at one end. is there.
  • the housing 21 is made of aluminum. Since the casing 21 is made of aluminum, the leakage magnetic flux can be shielded to increase the coupling coefficient, and the strength can be secured while achieving weight reduction.
  • the housing 21 has a bottom 21a, a side wall 21b, and a partition 21c.
  • the bottom 21a has a rectangular shape, and the side wall 21b extends in a direction perpendicular to the bottom 21a from each side of the bottom 21a.
  • the partition wall 21c extends from the bottom 21a in a direction perpendicular to the bottom 21a so as to extend across the two opposing side walls 21b. Thereby, the internal space of the housing 21 is divided into the first storage space S1 and the second storage space S2.
  • the coils L1 and L2 are stored in the first storage space S1.
  • the coils L1 and L2 are fixed by the placement portion 25 disposed in the area facing the first storage space S1 of the bottom portion 21a and the pressing portion 43 removably attached to the placement portion 25.
  • the end portion of the core 31 is fixed to the housing 21 by being held between the mounting portion 25 and the pressing portion 43.
  • the first storage space S1 is filled with a resin 45 so as to cover the coils L1 and L2 stored in the first storage space S1.
  • a resin 45 can be used as the resin 45.
  • the resin 45 is obtained by storing the coils L1 and L2 in the first storage space S1, injecting the resin 45 before curing into the first storage space S1, and then curing the resin 45.
  • the capacitors C1 and C2 (a plurality of capacitor elements 35) are accommodated in the second accommodation space S2.
  • the capacitors C1 and C2 are stored in the second storage space S2 by attaching the substrate 37 on which the plurality of capacitor elements 35 are mounted to a region of the bottom 21a facing the second storage space S2.
  • the region corresponding to the second storage space S2 in the opening of the housing 21 is closed by the lid 23.
  • the lid 23 faces the area facing the second storage space S2 of the bottom 21a, and is detachably attached to the housing 21.
  • the material of the lid 23 is not particularly limited as long as it is a nonmagnetic material, but in order to enhance the rigidity of the housing 21, it is preferable to be made of metal (for example, made of aluminum).
  • the wiring W1 is connected to one end of the coils L1 and L2 (Ritz wire).
  • the wiring W2 is connected to a terminal electrode (not shown) of the substrate 37, and thereby electrically connected to the capacitors C1 and C2 (a plurality of capacitor elements 35).
  • the other ends of the coils L1 and L2 (litz wire) are connected to a terminal electrode (not shown) disposed on the substrate 37, and thereby connected in series to the capacitors C1 and C2.
  • the coil unit CU1 and the coil unit CU2 are arranged such that the opening sides of the housing 21 face each other. That is, coil unit CU1 is mounted on vehicle 1 so that the opening side of case 21 faces downward, and coil unit CU2 is installed near the ground so that the opening side of case 21 faces upward.
  • the case 21 since the case 21 includes the partition wall 21c for defining the first storage space S1 and the second storage space S2, the rigidity is increased, and the coil unit is increased.
  • the strength of CU1 and CU2 is improved. Since the second storage space S2 is closed by the lid 23, the capacitors C1 and C2 can be protected, and since the first storage space S1 is filled with the resin 45, the coils L1 and L2 can be protected.
  • the rigidity of the case 21 is enhanced also by the attachment of the lid 23 to the case 21 and the filling of the first storage space S1 with the resin 45, and the strength of the coil units CU1 and CU2 Improve further.
  • the electrical insulation of the coils L1 and L2 can be secured.
  • the extraction portions 47 of the plurality of wires W1 and W2 electrically connected to the coils L1 and L2 and the capacitors C1 and C2 are provided.
  • connection of the wires W1 and W2 to the coil units CU1 and CU2 can be easily performed, and mounting on various devices can be easily performed.
  • FIG.5 and FIG.6 is a perspective view which shows the modification of a coil unit.
  • the lid 23 and the resin 45 are not shown.
  • the housing 21 is divided into a first storage space S1 and a plurality of second storage spaces S2 by the plurality of partition walls 21c.
  • the internal space of the housing 21 is divided into one first storage space S1 and two second storage spaces S2 by two partition walls 21c.
  • the first storage space S1 is located between the two second storage spaces S2.
  • the housing 21 has a plurality of partition walls 21c (two partition walls 21c). Therefore, the rigidity of the housing 21 is further enhanced, and the strength of the coil units CU1 and CU2 is further improved.
  • the first storage space S1 is located between the two second storage spaces S2, the first storage space S1, that is, the coils L1 and L2 are located at the central portions of the coil units CU1 and CU2. It will be done. As a result, the degree of freedom in designing the mounting positions of the coil units CU1 and CU2 is improved.
  • the internal space of the housing 21 is divided into the first storage space S1 and the two second storage spaces S2 by the two partition walls 21c, but the invention is not limited thereto.
  • the internal space of the housing 21 may be divided into one first storage space S1 and three or more second storage spaces S2 by three or more partition walls 21c.
  • the present invention is not limited to this.
  • a resin for example, a fiber reinforced plastic (FRP) made of carbon fiber or the like
  • FRP fiber reinforced plastic
  • a member such as foil or copper foil may be attached.
  • a lid made of a resin may be further provided to cover the resin 45 filled in the first storage space S1.
  • the rigidity of the housing 21 is further enhanced, and the strength of the coil units CU1 and CU2 is further improved.
  • metal lid When the first storage space S1 is covered with a metal lid, metal is inserted into the magnetic path for transmitting power, and the coupling coefficient is reduced. In addition, depending on the metal, an eddy current may occur and the lid may generate heat.
  • the non-contact power feeding system for a vehicle has been described as an example in the present embodiment, the present invention is not limited to this, and can be applied to a mobile body other than a vehicle, an electric product, and the like.
  • the present invention is applicable to a noncontact power feeding system.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

La présente invention porte sur des unités de bobine (CU1, CU2) qui au minimum envoient ou reçoivent de l'électricité par induction électromagnétique. Ces unités de bobine (CU1, CU2) comprennent les éléments suivants : des bobines (L1, L2) ; des condensateurs (C1, C2) qui sont connectés électriquement aux bobines (L1, L2) ; un boîtier (21) qui comprend un matériau non magnétique, qui présente une ouverture sur un côté et dont l'espace intérieur est divisé par une section de paroi de séparation (21c) en un premier espace de logement (S1) dans lequel les bobines (L1, L2) sont logées, et en un second espace de logement (S2) dans lequel les condensateurs (C1, C2) sont logés ; et un couvercle (23) qui bloque la région de l'ouverture correspondant au second espace de logement (S2). Le premier espace de logement (S1) est rempli de résine de manière à recouvrir les bobines (L1, L2) logées en son sein.
PCT/JP2013/053046 2012-02-20 2013-02-08 Unité de bobine et système d'alimentation électrique sans contact WO2013125372A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012033594A JP5293851B2 (ja) 2012-02-20 2012-02-20 コイルユニット及び非接触給電システム
JP2012-033594 2012-02-20

Publications (1)

Publication Number Publication Date
WO2013125372A1 true WO2013125372A1 (fr) 2013-08-29

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PCT/JP2013/053046 WO2013125372A1 (fr) 2012-02-20 2013-02-08 Unité de bobine et système d'alimentation électrique sans contact

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JP (2) JP5293851B2 (fr)
WO (1) WO2013125372A1 (fr)

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GB2516854A (en) * 2013-08-01 2015-02-11 Bombardier Transp Gmbh Carrying device and a receiving device
JP2015103595A (ja) * 2013-11-22 2015-06-04 トヨタ自動車株式会社 受電装置および送電装置
WO2015122248A1 (fr) * 2014-02-14 2015-08-20 矢崎総業株式会社 Unité de réception d'énergie électrique et système d'alimentation électrique doté de celle-ci
WO2015122249A1 (fr) * 2014-02-14 2015-08-20 矢崎総業株式会社 Unité de bobine et système d'alimentation électrique
WO2015124502A1 (fr) * 2014-02-19 2015-08-27 Bayerische Motoren Werke Aktiengesellschaft Agencement d'une bobine d'induction au niveau d'un dessous de caisse d'un véhicule à moteur et procédé pour assurer la charge inductive d'un accumulateur d'énergie d'un véhicule à moteur
WO2015189977A1 (fr) * 2014-06-13 2015-12-17 株式会社 東芝 Inducteur pour transmission de puissance sans fil
EP2960910A1 (fr) * 2014-06-11 2015-12-30 Toyota Jidosha Kabushiki Kaisha Dispositif de transmission de puissance et dispositif de réception de puissance
WO2016027570A1 (fr) * 2014-08-20 2016-02-25 トヨタ自動車株式会社 Dispositif de transmission d'énergie et son procédé de production, et dispositif de réception d'énergie et son procédé de production
DE102015014032A1 (de) 2015-10-30 2016-06-16 Daimler Ag Sekundärtransformatoreinheit für ein Kraftfahrzeug
WO2017009135A1 (fr) * 2015-07-13 2017-01-19 Bayerische Motoren Werke Aktiengesellschaft Unité de bobine pour le transfert d'énergie par induction
WO2017141378A1 (fr) * 2016-02-17 2017-08-24 富士機械製造株式会社 Dispositif d'alimentation électrique sans contact
CN109969004A (zh) * 2017-12-27 2019-07-05 丰田自动车株式会社 车辆

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JP6405903B2 (ja) * 2014-11-05 2018-10-17 トヨタ自動車株式会社 コイルユニット
JP6308120B2 (ja) * 2014-12-15 2018-04-11 トヨタ自動車株式会社 コイルユニット
JP2016116314A (ja) * 2014-12-15 2016-06-23 トヨタ自動車株式会社 送電装置
JP6339524B2 (ja) * 2015-05-08 2018-06-06 トヨタ自動車株式会社 送電装置
JP6458678B2 (ja) * 2015-08-05 2019-01-30 トヨタ自動車株式会社 コイルユニット
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