WO2013145579A1 - Power supply apparatus - Google Patents

Power supply apparatus Download PDF

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Publication number
WO2013145579A1
WO2013145579A1 PCT/JP2013/001474 JP2013001474W WO2013145579A1 WO 2013145579 A1 WO2013145579 A1 WO 2013145579A1 JP 2013001474 W JP2013001474 W JP 2013001474W WO 2013145579 A1 WO2013145579 A1 WO 2013145579A1
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WO
WIPO (PCT)
Prior art keywords
power supply
power
coil
supply coil
feeding
Prior art date
Application number
PCT/JP2013/001474
Other languages
French (fr)
Japanese (ja)
Inventor
利樹 龍田
修 大橋
剛 西尾
則明 朝岡
正剛 小泉
Original Assignee
パナソニック株式会社
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 パナソニック株式会社 filed Critical パナソニック株式会社
Priority to US14/387,460 priority Critical patent/US9979229B2/en
Priority to CN201380013638.2A priority patent/CN104170210B/en
Priority to EP13767286.1A priority patent/EP2833510B1/en
Publication of WO2013145579A1 publication Critical patent/WO2013145579A1/en

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Classifications

    • 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
    • B60L53/124—Detection or removal of foreign bodies
    • 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
    • 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
    • B60L53/126—Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
    • 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
    • H02J50/10—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
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and 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
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
    • 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 power feeding device that feeds power in a contactless manner using electromagnetic induction to a power receiving unit provided in a vehicle.
  • Patent Document 1 As a non-contact power supply device, one that is installed on the ground and supplies power to a power receiving unit mounted on a vehicle is known (for example, Patent Document 1).
  • Patent Document 1 includes two units, a power transmission unit and a power reception unit.
  • the power transmission unit includes a ring-shaped power transmission coil and a housing that houses the coil, and is installed on the road surface side where a vehicle such as a parking space stops.
  • the power receiving unit includes a ring-shaped power receiving coil and a housing that houses the coil, and is installed at a position on the bottom surface of the vehicle that faces the power transmitting unit installed on the ground.
  • the casing surface (hereinafter referred to as “upper surface”) of the power transmission unit facing the power receiving unit is formed to be parallel to the radial direction of the power transmission coil.
  • the upper surface of the power transmission unit is parallel to the radial direction of the power transmission coil, it is easy for foreign matter to get on the upper surface.
  • the foreign matter on the upper surface has a problem that it is heated to a high temperature when a lot of magnetic flux penetrates during power feeding.
  • a hole is opened in a part in contact with the foreign object, and the upper surface is damaged. As a result, the foreign object entering from the damaged part There is a risk of affecting the power supply process.
  • An object of the present invention is to provide a power feeding device that can suppress foreign matter from being heated to a high temperature during power feeding.
  • a power supply device is a power supply device that supplies power to a power reception unit provided in a vehicle in a non-contact manner using electromagnetic induction, and is opposed to the power reception unit with respect to the power reception unit.
  • the first feeding coil gradually approaches the feeding coil from the top toward the inner edge of the feeding coil in the radial direction of the feeding coil at a portion where the feeding coil is projected onto the casing toward the housing.
  • An inclined portion a second inclined portion that gradually approaches the feeding coil from the top toward the outer periphery of the feeding coil, in the radial direction of the feeding coil, on the portion where the feeding coil is projected, and the first The top of the inclined part A configuration in which a concave portion in contact with the different ends side are formed.
  • FIG. AA line sectional view of FIG. BB sectional view of FIG. CC sectional view of FIG.
  • FIG. 1 is a block diagram showing an example of a configuration of charging system 10 according to Embodiment 1 of the present invention.
  • the charging system 10 includes a power feeding device 100, a vehicle 150, a storage battery 154, and a charging device 170.
  • the power feeding device 100 is installed or embedded on the ground such that the power feeding unit 103 is exposed from the ground surface g.
  • the power supply device 100 is provided in a parking space, for example, and supplies power to the charging device 170 while facing the power receiving unit 153 while the vehicle 150 is parked. Note that the configuration of the power supply apparatus 100 will be described later.
  • the vehicle 150 includes a storage battery 154 and a charging device 170, and travels using the storage battery 154 as a power source.
  • the vehicle 150 is, for example, a vehicle that can be driven by the electric power of the storage battery 154 such as HEV (Hybrid Electric Vehicle), PHEV (Plug-in Hybrid Electric Vehicle), or EV (Electric Vehicle).
  • HEV Hybrid Electric Vehicle
  • PHEV Plug-in Hybrid Electric Vehicle
  • EV Electric Vehicle
  • the storage battery 154 stores the power supplied by the charging device 170.
  • the charging device 170 includes a vehicle-side control unit 151 and a power receiving device 160, and supplies power supplied from the power supply device 100 to the storage battery 154. The details of the configuration of the charging device 170 will be described later.
  • the vehicle-side control unit 151 controls the power receiving apparatus 160 to perform various processes associated with charging or various processes associated with stopping charging.
  • the power receiving apparatus 160 supplies the power supplied from the power supply apparatus 100 to the storage battery 154 according to the control of the vehicle side control unit 151. Note that the configuration of the power receiving apparatus 160 will be described later.
  • the power supply apparatus 100 includes a power supply side communication unit 101, a power supply side control unit 102, and a power supply unit 103.
  • the power supply side communication unit 101 receives a power supply start signal or a power supply stop signal from the vehicle side communication unit 152.
  • the power supply side communication unit 101 outputs the received power supply start signal or power supply stop signal to the power supply side control unit 102.
  • the power supply side control unit 102 controls the power supply unit 103 to start power supply in accordance with the power supply start signal input from the power supply side communication unit 101.
  • the power supply side control unit 102 controls the power supply unit 103 to stop power supply in accordance with the power supply stop signal input from the power supply side communication unit 101.
  • the power feeding unit 103 includes a power feeding coil 103a.
  • the power feeding unit 103 feeds power to the power receiving unit 153 using electromagnetic induction by supplying a current having a predetermined frequency to the power feeding coil 103 a according to the control of the power feeding side control unit 102.
  • This power supply is performed by, for example, an electromagnetic induction method or a magnetic resonance method. Details of the configuration of the power supply unit 103 will be described later.
  • the power receiving device 160 includes a vehicle side communication unit 152 and a power receiving unit 153.
  • the vehicle side communication unit 152 generates a charge start signal or a charge stop signal according to the control of the vehicle side control unit 151, and transmits the generated charge start signal or charge stop signal to the power supply side communication unit 101.
  • the power receiving unit 153 is provided at the bottom of the vehicle 150, has a power receiving coil 153a, and faces the power feeding unit 103 in a non-contact state when charging the storage battery 154.
  • the power reception unit 153 supplies the storage battery 154 with the power supplied from the power supply unit 103 to the power reception coil 153a according to the control of the vehicle-side control unit 151.
  • FIG. 2 is a perspective view of the power feeding unit 103
  • FIG. 3 is a plan view of the power feeding unit 103 viewed from the direction of the power receiving unit 153.
  • 4 is a cross-sectional view taken along line AA in FIG. 2
  • FIG. 5 is a cross-sectional view taken along line BB in FIG. 2
  • FIG. 6 is a cross-sectional view taken along line CC in FIG.
  • the structure of the electric power feeding part 103 is mainly demonstrated using FIG.2 and FIG.4.
  • the power feeding unit 103 includes a power feeding coil 103a and a housing 103b.
  • the feeding coil 103a has a hollow ring shape and is placed on the inner bottom surface (base) 201 of the housing 103b.
  • the power supply coil 103a is connected to, for example, a commercial power supply, and supplies power to the power receiving unit 153 when current is supplied from the power supply.
  • the power supply coil 103a is formed by winding a thin metal wire, for example.
  • the housing 103b includes a base 201 and a cover 202.
  • the base 201 is formed in, for example, a square flat plate shape (see, for example, FIG. 3).
  • As the material of the base 201 for example, aluminum is used.
  • the power supply coil 103a is placed on the base 201, and the cover 202 is attached.
  • the cover 202 includes a top surface 202a that is a surface facing the power receiving unit 153 in the housing 103b, a flat portion 202b that is a portion other than the top surface 202a among the surfaces facing the power receiving unit 153 in the housing 103b, and the cover 202 side. It is comprised from the outer side wall part 202c which is a part.
  • the housing 103b has the first inclined portion 203, the second inclined portion 204, and the recessed portion 206 on the upper surface 202a.
  • a portion where the feeding coil 103a is projected includes the first inclined portion 203 and the second inclined portion 203. And an inclined portion 204.
  • the first inclined portion 203 is formed so as to have a downward inclination from the circular top portion 205 toward the inner edge portion 211 of the feeding coil 103a in the radial direction of the feeding coil 103a, that is, an inclination gradually approaching the feeding coil 103a.
  • the radial direction of the feeding coil 103a is a direction orthogonal to the central axis P1 of the feeding coil 103a.
  • the first inclined portion 203 is formed so that one end is connected to the top portion 205 and the other end is connected to the concave portion 206 (side portion 206a).
  • the second inclined portion 204 is formed to have a downward inclination from the circular top portion 205 toward the outer periphery 212 of the power supply coil 103a in the radial direction of the power supply coil 103a, that is, an inclination that gradually approaches the power supply coil 103a. ing.
  • the second inclined portion 204 is formed so that one end is connected to the top portion 205 and the other end is connected to the flat portion 202b.
  • the recess 206 is installed at a position corresponding to the hollow portion of the power feeding coil 103a.
  • the concave portion 206 is formed so that the side portion 206 a is connected to the first inclined portion 203 and the bottom portion 206 b is connected to face the base 201.
  • the groove 207 is formed in the bottom 206b of the recess 206.
  • the groove 207 is for accommodating the foreign matter that has slipped down from the first inclined portion 203.
  • the groove 207 may have a shape that can accommodate foreign matter and cannot touch foreign matter contained by a human finger or the like.
  • the reinforcing material 208 supports the first inclined portion 203.
  • a material of the reinforcing material 208 for example, an insulator is used. By doing so, it is possible to secure a load resistance when the tire of the vehicle 150 passes over the housing 103b.
  • the heat generated by the foreign matter is small in the recess 206 as compared with the vicinity of the power feeding coil 103a. Therefore, the foreign matter existing on the first inclined portion 203 slides down into the concave portion 206, so that the foreign matter can be prevented from being heated to a high temperature. Moreover, since the foreign material which exists on the 2nd inclination part 204 slides down to the exterior of the electric power feeding part 103, it can prevent that a foreign material is heated and becomes high temperature.
  • two inclined portions of the first inclined portion 203 and the second inclined portion 204 are formed in a portion of the power supply portion 103 that faces the power receiving portion 153 of the housing 103b.
  • the shape of the power supply coil 103a increases, and the power supply unit 103 is determined from the relationship between the clearance between the power supply unit 103 and the bottom of the vehicle 150. A sufficient curved surface cannot be provided in the housing 103b.
  • the present embodiment by forming two inclined portions in the portion facing the power receiving unit 153 in the housing 103b, one inclination is formed in the portion facing the power receiving unit 153 in the housing 103b.
  • the thickness of the inclined portions (the first inclined portion 203 and the second inclined portion 204) can be reduced. Therefore, the clearance between the power feeding unit 103 and the bottom of the vehicle 150 can be maintained by suppressing the height of the power feeding unit 103 in the bottom direction of the vehicle 150.
  • the position of the top portion 205 on the housing 103b is an intermediate portion between the inner edge portion 211 and the outer periphery 212 of the feeding coil 103a in the direction of the central axis P1 of the feeding coil 103a.
  • the position 213 is preferable. This is because the foreign matter present at the position of the intermediate portion 213 is most likely to generate heat in the radial direction of the feeding coil 103a.
  • the position of the top portion 205 that is the farthest from the power supply coil 103a in the direction of the central axis P1 is the position of the intermediate portion 213 where the foreign material is most likely to generate heat, so that the foreign material does not slide down. Even in the case of stagnation, the heat generation of the foreign matter can be minimized.
  • the first inclined portion 203 and the second inclined portion 204 may be covered with a protective cover coated with a material having a friction coefficient less than a predetermined value.
  • the predetermined value may be set to a value that allows the foreign matter present in each inclined portion to slide down. By doing so, the foreign matter can be easily slipped in the first inclined portion 203 and the second inclined portion 204, and the foreign matter can be reliably slid down to the outside of the recess 206 or the power feeding portion 103.
  • a through hole may be provided in the bottom 206b of the recess 206 instead of the groove 207. This through-hole is for discharging the foreign matter sliding down from the first inclined portion 203 to the outside.
  • a water distribution pipe for draining water may be provided in the recess 206. By doing so, it is possible to prevent water from collecting in the concave portion 206.
  • the power supply device is suitable for supplying power in a non-contact manner to a power receiving unit provided in a vehicle.

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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

A power supply apparatus capable of inhibiting temperature increase of a foreign substance heated during power supply while suppressing the thickness of a cabinet surface. In the power supply apparatus (100), on a top surface (202a), which is the surface opposing the power-receiving unit (153) of a cabinet (103b), in the portion where a power supply coil (103a) is projected when the power supply coil (103a) is projected on the cabinet (103b) toward the direction of the power-receiving unit (153), a first inclined part (203) gradually approaching the power supply coil (103a) from the top section (205) toward the inner edge section (211) of the power supply coil (103a) is formed in the radial direction of the power supply coil (103a), and in the portion where the power supply coil (103a) is projected, a second inclined part (204) gradually approaching the power supply coil (103a) from the top section (205) toward the outer periphery (212) of the power supply coil (103a) is formed in the radial direction of the power supply coil (103a).

Description

給電装置Power supply device
　本発明は、車輌に設けられた受電部に対して電磁誘導を利用して非接触で給電する給電装置に関する。 The present invention relates to a power feeding device that feeds power in a contactless manner using electromagnetic induction to a power receiving unit provided in a vehicle.
　従来、非接触の給電装置としては、地面に設置され、車輌に搭載されている受電部に給電するものが知られている（例えば、特許文献１）。 Conventionally, as a non-contact power supply device, one that is installed on the ground and supplies power to a power receiving unit mounted on a vehicle is known (for example, Patent Document 1).
　特許文献１では、送電ユニットと受電ユニットの２つのユニットを備える。送電ユニットは、リング状の送電コイルと、このコイルを収納する筐体とを有し、駐車スペース等の車輌が停止する位置の路面側に設置される。受電ユニットは、リング状の受電コイルと、このコイルを収納する筐体とを有し、車輌の底面の、地面に設置された送電ユニットと対向する位置に設置される。受電ユニットに対向する送電ユニットの筐体面（以下、「上面」と呼ぶ）は、送電コイルの径方向と平行になるように形成される。 Patent Document 1 includes two units, a power transmission unit and a power reception unit. The power transmission unit includes a ring-shaped power transmission coil and a housing that houses the coil, and is installed on the road surface side where a vehicle such as a parking space stops. The power receiving unit includes a ring-shaped power receiving coil and a housing that houses the coil, and is installed at a position on the bottom surface of the vehicle that faces the power transmitting unit installed on the ground. The casing surface (hereinafter referred to as “upper surface”) of the power transmission unit facing the power receiving unit is formed to be parallel to the radial direction of the power transmission coil.
特開２０１１－１０４３５号公報JP 2011-10435 A
　しかしながら、従来の給電装置においては、送電ユニットの上面は送電コイルの径方向と平行であるため、上面上に異物が乗りやすい。上面上の異物は、給電中に多くの磁束が貫くことにより加熱されて高温度になるという問題がある。また、異物が加熱されて高温度になることにより、異物と接している部分に穴が開く等して上面の損傷が発生し、この結果、損傷部分から進入してくる異物等が、送電コイルの給電処理に影響を与えてしまう恐れがある。 However, in the conventional power supply apparatus, since the upper surface of the power transmission unit is parallel to the radial direction of the power transmission coil, it is easy for foreign matter to get on the upper surface. The foreign matter on the upper surface has a problem that it is heated to a high temperature when a lot of magnetic flux penetrates during power feeding. In addition, when the foreign object is heated to a high temperature, a hole is opened in a part in contact with the foreign object, and the upper surface is damaged. As a result, the foreign object entering from the damaged part There is a risk of affecting the power supply process.
　本発明の目的は、給電中に異物が加熱されて高温度になることを抑制することができる給電装置を提供することである。 An object of the present invention is to provide a power feeding device that can suppress foreign matter from being heated to a high temperature during power feeding.
　本発明の一態様に係る給電装置は、車輌に設けられた受電部に対して電磁誘導を利用して非接触で給電する給電装置であって、前記受電部と対向して前記受電部に対して給電するリング状の給電コイルと、前記給電コイルを収納する筐体と、を具備し、前記筐体の前記受電部と対向する面である上面には、前記給電コイルを前記受電部の方向に向かって前記筐体に投影した際に前記給電コイルが投影される部分に、前記給電コイルの径方向において、頂部から前記給電コイルの内縁部に向かって徐々に前記給電コイルに近づく第１の傾斜部と、前記給電コイルが投影される部分に、前記給電コイルの径方向において、前記頂部から前記給電コイルの外周に向かって徐々に前記給電コイルに近づく第２の傾斜部と、前記第１の傾斜部の前記頂部側と異なる端部と接する凹部と、が形成される構成を採る。 A power supply device according to an aspect of the present invention is a power supply device that supplies power to a power reception unit provided in a vehicle in a non-contact manner using electromagnetic induction, and is opposed to the power reception unit with respect to the power reception unit. A ring-shaped feeding coil that feeds power and a housing that houses the feeding coil, and the feeding coil is disposed on the upper surface of the housing facing the power receiving unit in the direction of the power receiving unit. The first feeding coil gradually approaches the feeding coil from the top toward the inner edge of the feeding coil in the radial direction of the feeding coil at a portion where the feeding coil is projected onto the casing toward the housing. An inclined portion, a second inclined portion that gradually approaches the feeding coil from the top toward the outer periphery of the feeding coil, in the radial direction of the feeding coil, on the portion where the feeding coil is projected, and the first The top of the inclined part A configuration in which a concave portion in contact with the different ends side are formed.
　本発明によれば、給電中に異物が加熱されて高温度になることを抑制することができる。 According to the present invention, it is possible to prevent the foreign matter from being heated to a high temperature during power feeding.
本発明の実施の形態１に係る充電システムの構成例を示すブロック図The block diagram which shows the structural example of the charging system which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る給電部の斜視図The perspective view of the electric power feeding part which concerns on Embodiment 1 of this invention. 図２の平面図Plan view of FIG. 図２のＡ－Ａ線断面図AA line sectional view of FIG. 図２のＢ－Ｂ線断面図BB sectional view of FIG. 図２のＣ－Ｃ線断面図CC sectional view of FIG.
　以下、本発明の実施の形態について、図面を参照して詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
　（実施の形態１）
　＜充電システムの構成＞
　図１は、本発明の実施の形態１における充電システム１０の構成の一例を示すブロック図である。 (Embodiment 1)
<Configuration of charging system>
FIG. 1 is a block diagram showing an example of a configuration of charging system 10 according to Embodiment 1 of the present invention.
　充電システム１０は、給電装置１００、車輌１５０、蓄電池１５４及び充電装置１７０を有する。 The charging system 10 includes a power feeding device 100, a vehicle 150, a storage battery 154, and a charging device 170.
　給電装置１００は、給電部１０３が地表ｇから露出するように地面上に設置もしくは埋設される。給電装置１００は、例えば駐車スペースに設けられ、車輌１５０の駐車中に、受電部１５３に対向して充電装置１７０に対して給電する。なお、給電装置１００の構成については後述する。 The power feeding device 100 is installed or embedded on the ground such that the power feeding unit 103 is exposed from the ground surface g. The power supply device 100 is provided in a parking space, for example, and supplies power to the charging device 170 while facing the power receiving unit 153 while the vehicle 150 is parked. Note that the configuration of the power supply apparatus 100 will be described later.
　車輌１５０は、蓄電池１５４及び充電装置１７０を有し、蓄電池１５４を動力源として走行する。車輌１５０は、例えば、ＨＥＶ（Hybrid Electric Vehicle）、ＰＨＥＶ（Plug-in Hybrid Electric Vehicle）またはＥＶ（Electric Vehicle）といった蓄電池１５４の電力で走行可能な自動車である。 The vehicle 150 includes a storage battery 154 and a charging device 170, and travels using the storage battery 154 as a power source. The vehicle 150 is, for example, a vehicle that can be driven by the electric power of the storage battery 154 such as HEV (Hybrid Electric Vehicle), PHEV (Plug-in Hybrid Electric Vehicle), or EV (Electric Vehicle).
　蓄電池１５４は、充電装置１７０により供給される電力を蓄える。 The storage battery 154 stores the power supplied by the charging device 170.
　充電装置１７０は、車両側制御部１５１及び受電装置１６０を有し、給電装置１００から給電される電力を蓄電池１５４に供給する。なお、充電装置１７０の構成の詳細については後述する。 The charging device 170 includes a vehicle-side control unit 151 and a power receiving device 160, and supplies power supplied from the power supply device 100 to the storage battery 154. The details of the configuration of the charging device 170 will be described later.
　車輌側制御部１５１は、受電装置１６０に対して、充電に伴う各種処理または充電停止に伴う各種処理を行うように制御する。 The vehicle-side control unit 151 controls the power receiving apparatus 160 to perform various processes associated with charging or various processes associated with stopping charging.
　受電装置１６０は、車輌側制御部１５１の制御に従って、給電装置１００から供給された電力を蓄電池１５４に供給する。なお、受電装置１６０の構成については後述する。 The power receiving apparatus 160 supplies the power supplied from the power supply apparatus 100 to the storage battery 154 according to the control of the vehicle side control unit 151. Note that the configuration of the power receiving apparatus 160 will be described later.
　＜給電装置の構成＞
　給電装置１００は、給電側通信部１０１と、給電側制御部１０２と、給電部１０３とを有する。 <Configuration of power supply device>
The power supply apparatus 100 includes a power supply side communication unit 101, a power supply side control unit 102, and a power supply unit 103.
　給電側通信部１０１は、車輌側通信部１５２からの給電開始信号または給電停止信号を受信する。給電側通信部１０１は、受信した給電開始信号または給電停止信号を給電側制御部１０２に出力する。 The power supply side communication unit 101 receives a power supply start signal or a power supply stop signal from the vehicle side communication unit 152. The power supply side communication unit 101 outputs the received power supply start signal or power supply stop signal to the power supply side control unit 102.
　給電側制御部１０２は、給電側通信部１０１から入力した給電開始信号に従って、給電部１０３に対して給電を開始するように制御する。給電側制御部１０２は、給電側通信部１０１から入力した給電停止信号に従って、給電部１０３に対して給電を停止するように制御する。 The power supply side control unit 102 controls the power supply unit 103 to start power supply in accordance with the power supply start signal input from the power supply side communication unit 101. The power supply side control unit 102 controls the power supply unit 103 to stop power supply in accordance with the power supply stop signal input from the power supply side communication unit 101.
　給電部１０３は、給電コイル１０３ａを有する。給電部１０３は、給電側制御部１０２の制御に従って、給電コイル１０３ａに所定の周波数の電流を供給することにより、電磁誘導を利用して受電部１５３に給電する。この給電は、例えば、電磁誘導方式、もしくは磁気共鳴方式にて行われる。なお、給電部１０３の構成の詳細については後述する。 The power feeding unit 103 includes a power feeding coil 103a. The power feeding unit 103 feeds power to the power receiving unit 153 using electromagnetic induction by supplying a current having a predetermined frequency to the power feeding coil 103 a according to the control of the power feeding side control unit 102. This power supply is performed by, for example, an electromagnetic induction method or a magnetic resonance method. Details of the configuration of the power supply unit 103 will be described later.
　＜受電装置の構成＞
　受電装置１６０は、車輌側通信部１５２及び受電部１５３を有する。 <Configuration of power receiving device>
The power receiving device 160 includes a vehicle side communication unit 152 and a power receiving unit 153.
　車輌側通信部１５２は、車輌側制御部１５１の制御に従って、充電開始信号または充電停止信号を生成し、生成した充電開始信号または充電停止信号を給電側通信部１０１に送信する。 The vehicle side communication unit 152 generates a charge start signal or a charge stop signal according to the control of the vehicle side control unit 151, and transmits the generated charge start signal or charge stop signal to the power supply side communication unit 101.
　受電部１５３は、車輌１５０の底部に設けられ、受電コイル１５３ａを有するとともに、蓄電池１５４を充電する際に、給電部１０３と非接触状態で対向する。受電部１５３は、車輌側制御部１５１の制御に従って、給電部１０３から受電コイル１５３ａに給電された電力を蓄電池１５４に供給する。 The power receiving unit 153 is provided at the bottom of the vehicle 150, has a power receiving coil 153a, and faces the power feeding unit 103 in a non-contact state when charging the storage battery 154. The power reception unit 153 supplies the storage battery 154 with the power supplied from the power supply unit 103 to the power reception coil 153a according to the control of the vehicle-side control unit 151.
　＜給電部の構成＞
　図２は給電部１０３の斜視図であり、図３は給電部１０３を受電部１５３の方向からみた平面図である。また、図４は図２のＡ－Ａ線断面図であり、図５は図２のＢ－Ｂ線断面図であり、図６は図２のＣ－Ｃ線断面図である。以下では、主に、図２及び図４を用いて、給電部１０３の構成について説明する。 <Configuration of power supply unit>
FIG. 2 is a perspective view of the power feeding unit 103, and FIG. 3 is a plan view of the power feeding unit 103 viewed from the direction of the power receiving unit 153. 4 is a cross-sectional view taken along line AA in FIG. 2, FIG. 5 is a cross-sectional view taken along line BB in FIG. 2, and FIG. 6 is a cross-sectional view taken along line CC in FIG. Below, the structure of the electric power feeding part 103 is mainly demonstrated using FIG.2 and FIG.4.
　給電部１０３は、給電コイル１０３ａ及び筐体１０３ｂを有する。 The power feeding unit 103 includes a power feeding coil 103a and a housing 103b.
　給電コイル１０３ａは、中空のリング状であり、筐体１０３ｂの内底面（ベース）２０１に載置されている。給電コイル１０３ａは、例えば、商用の電源に接続されており、この電源から電流が供給されることにより受電部１５３に給電する。給電コイル１０３ａは、例えば金属細線を巻回して形成されている。 The feeding coil 103a has a hollow ring shape and is placed on the inner bottom surface (base) 201 of the housing 103b. The power supply coil 103a is connected to, for example, a commercial power supply, and supplies power to the power receiving unit 153 when current is supplied from the power supply. The power supply coil 103a is formed by winding a thin metal wire, for example.
　筐体１０３ｂは、ベース２０１とカバー２０２とから構成される。ベース２０１は、例えば四角の平板形状に形成される（例えば図３参照）。ベース２０１の材質としては、例えばアルミニウムが用いられる。また、ベース２０１には、給電コイル１０３ａが載置され、カバー２０２が取り付けられる。 The housing 103b includes a base 201 and a cover 202. The base 201 is formed in, for example, a square flat plate shape (see, for example, FIG. 3). As the material of the base 201, for example, aluminum is used. In addition, the power supply coil 103a is placed on the base 201, and the cover 202 is attached.
　カバー２０２の材質としては、例えば強化プラスチック等の非金属材料が用いられる。カバー２０２は、筐体１０３ｂにおける受電部１５３と対向する面である上面２０２ａと、筐体１０３ｂにおける受電部１５３と対向する面のうち上面２０２ａ以外の部分である平坦部２０２ｂと、カバー２０２の側部である外側壁部２０２ｃとから構成される。カバー２０２をベース２０１に取り付けると、筐体１０３ｂは、上面２０２ａに、第１の傾斜部２０３と、第２の傾斜部２０４と、凹部２０６と、を有することになる。特に、上面２０２ａのうち、給電コイル１０３ａを受電部１５３の方向に向かって筐体１０３ｂに投影した際に、給電コイル１０３ａが投影される部分には、第１の傾斜部２０３と、第２の傾斜部２０４とを有する。 As the material of the cover 202, for example, a non-metallic material such as reinforced plastic is used. The cover 202 includes a top surface 202a that is a surface facing the power receiving unit 153 in the housing 103b, a flat portion 202b that is a portion other than the top surface 202a among the surfaces facing the power receiving unit 153 in the housing 103b, and the cover 202 side. It is comprised from the outer side wall part 202c which is a part. When the cover 202 is attached to the base 201, the housing 103b has the first inclined portion 203, the second inclined portion 204, and the recessed portion 206 on the upper surface 202a. In particular, in the upper surface 202a, when the feeding coil 103a is projected onto the housing 103b in the direction of the power receiving unit 153, a portion where the feeding coil 103a is projected includes the first inclined portion 203 and the second inclined portion 203. And an inclined portion 204.
　第１の傾斜部２０３は、給電コイル１０３ａの径方向において円形の頂部２０５から給電コイル１０３ａの内縁部２１１に向かって下り傾斜、すなわち、給電コイル１０３ａに徐々に近づくような傾斜となるように形成されている。ここで、給電コイル１０３ａの径方向とは、給電コイル１０３ａの中心軸Ｐ１と直交する方向である。第１の傾斜部２０３は、一端が頂部２０５と接続し、他端が凹部２０６（側部２０６ａ）と接続するように形成されている。 The first inclined portion 203 is formed so as to have a downward inclination from the circular top portion 205 toward the inner edge portion 211 of the feeding coil 103a in the radial direction of the feeding coil 103a, that is, an inclination gradually approaching the feeding coil 103a. Has been. Here, the radial direction of the feeding coil 103a is a direction orthogonal to the central axis P1 of the feeding coil 103a. The first inclined portion 203 is formed so that one end is connected to the top portion 205 and the other end is connected to the concave portion 206 (side portion 206a).
　第２の傾斜部２０４は、給電コイル１０３ａの径方向において円形の頂部２０５から給電コイル１０３ａの外周２１２に向かって下り傾斜、すなわち、給電コイル１０３ａに徐々に近づくような傾斜となるように形成されている。第２の傾斜部２０４は、一端が頂部２０５と接続し、他端が平坦部２０２ｂと接続するように形成されている。 The second inclined portion 204 is formed to have a downward inclination from the circular top portion 205 toward the outer periphery 212 of the power supply coil 103a in the radial direction of the power supply coil 103a, that is, an inclination that gradually approaches the power supply coil 103a. ing. The second inclined portion 204 is formed so that one end is connected to the top portion 205 and the other end is connected to the flat portion 202b.
　凹部２０６は、給電コイル１０３ａの中空の部分に相当する位置に設置される。凹部２０６は、側部２０６ａが第１の傾斜部２０３と接続し、底部２０６ｂがベース２０１と対向して接続するように形成されている。 The recess 206 is installed at a position corresponding to the hollow portion of the power feeding coil 103a. The concave portion 206 is formed so that the side portion 206 a is connected to the first inclined portion 203 and the bottom portion 206 b is connected to face the base 201.
　溝２０７は、凹部２０６の底部２０６ｂに形成されている。溝２０７は、第１の傾斜部２０３上から滑り落ちてきた異物を収容するためのものである。溝２０７は、異物を収容でき、かつ、人の指などにより収容されている異物を触れることができないような形状としてもよい。 The groove 207 is formed in the bottom 206b of the recess 206. The groove 207 is for accommodating the foreign matter that has slipped down from the first inclined portion 203. The groove 207 may have a shape that can accommodate foreign matter and cannot touch foreign matter contained by a human finger or the like.
　補強材２０８は、第１の傾斜部２０３を支持する。補強材２０８の材質としては、例えば絶縁物が用いられる。こうすることで、筐体１０３ｂの上を車輌１５０のタイヤが通過した場合の耐荷重を確保することができる。 The reinforcing material 208 supports the first inclined portion 203. As a material of the reinforcing material 208, for example, an insulator is used. By doing so, it is possible to secure a load resistance when the tire of the vehicle 150 passes over the housing 103b.
　＜本実施の形態の効果＞
　本実施の形態では、筐体１０３ｂの上面２０２ａには、給電コイル１０３ａの径方向において、給電コイル１０３ａの中心に向かって徐々に給電コイル１０３ａに近づく第１の傾斜部２０３、及び、給電コイル１０３ａの外周２１２に向かって徐々に給電コイル１０３ａに近づく第２の傾斜部２０４の２つの傾斜部が形成される。これにより、第１の傾斜部２０３上に存在する異物は、給電部１０３の中央部に設けられた凹部２０６に滑り落ちる。ここで、凹部２０６は、上述したように給電コイル１０３ａの中空の部分に相当する。ただし、凹部２０６では、給電コイル１０３ａ付近と比較して、異物の発熱が小さい。よって、第１の傾斜部２０３上に存在する異物は、凹部２０６に滑り落ちるので、異物が加熱されて高温度になることを防ぐことができる。また、第２の傾斜部２０４上に存在する異物は、給電部１０３の外部へ滑り落ちるので、異物が加熱されて高温度になることを防ぐことができる。 <Effects of the present embodiment>
In the present embodiment, on the upper surface 202a of the housing 103b, in the radial direction of the feeding coil 103a, the first inclined portion 203 that gradually approaches the feeding coil 103a toward the center of the feeding coil 103a, and the feeding coil 103a. The two inclined portions of the second inclined portion 204 that gradually approach the power supply coil 103a toward the outer periphery 212 of the outer periphery 212 are formed. As a result, the foreign matter existing on the first inclined portion 203 slides down into the concave portion 206 provided in the central portion of the power feeding portion 103. Here, the concave portion 206 corresponds to the hollow portion of the feeding coil 103a as described above. However, the heat generated by the foreign matter is small in the recess 206 as compared with the vicinity of the power feeding coil 103a. Therefore, the foreign matter existing on the first inclined portion 203 slides down into the concave portion 206, so that the foreign matter can be prevented from being heated to a high temperature. Moreover, since the foreign material which exists on the 2nd inclination part 204 slides down to the exterior of the electric power feeding part 103, it can prevent that a foreign material is heated and becomes high temperature.
　また、本実施の形態では、給電部１０３の筐体１０３ｂの受電部１５３と対向する部分に、第１の傾斜部２０３及び第２の傾斜部２０４の２つの傾斜部を形成する。一般に、本実施の形態では、車輌１５０の底部の受電部１５３へ大電力を給電するので、給電コイル１０３ａの形状が大きくなり、給電部１０３と車輌１５０の底部とのクリアランスの関係から給電部１０３の筐体１０３ｂに十分な曲面を設けることはできない。これに対して、本実施の形態によれば、筐体１０３ｂにおける受電部１５３と対向する部分に２つの傾斜部を形成することにより、筐体１０３ｂにおける受電部１５３と対向する部分に１つの傾斜部を形成する場合と比較して、傾斜部（第１の傾斜部２０３及び第２の傾斜部２０４）の厚みを薄くすることができる。よって、給電部１０３における車輌１５０の底面方向の高さを抑えることで、給電部１０３と車輌１５０の底部とのクリアランスを保つことができる。 Further, in the present embodiment, two inclined portions of the first inclined portion 203 and the second inclined portion 204 are formed in a portion of the power supply portion 103 that faces the power receiving portion 153 of the housing 103b. In general, in the present embodiment, since a large amount of power is supplied to the power receiving unit 153 at the bottom of the vehicle 150, the shape of the power supply coil 103a increases, and the power supply unit 103 is determined from the relationship between the clearance between the power supply unit 103 and the bottom of the vehicle 150. A sufficient curved surface cannot be provided in the housing 103b. On the other hand, according to the present embodiment, by forming two inclined portions in the portion facing the power receiving unit 153 in the housing 103b, one inclination is formed in the portion facing the power receiving unit 153 in the housing 103b. Compared with the case where the portion is formed, the thickness of the inclined portions (the first inclined portion 203 and the second inclined portion 204) can be reduced. Therefore, the clearance between the power feeding unit 103 and the bottom of the vehicle 150 can be maintained by suppressing the height of the power feeding unit 103 in the bottom direction of the vehicle 150.
　なお、本実施の形態において、図４に示すように、筐体１０３ｂ上の頂部２０５の位置は、給電コイル１０３ａの中心軸Ｐ１方向における、給電コイル１０３ａの内縁部２１１と外周２１２との中間部２１３の位置であることが好ましい。この理由は、給電コイル１０３ａの径方向において、中間部２１３の位置に存在する異物が最も発熱し易いためである。筐体１０３ｂ上において、中心軸Ｐ１方向における給電コイル１０３ａとの距離が最も離れている頂部２０５の位置を、異物が最も発熱し易い中間部２１３の位置とすることで、異物が滑り落ちずに停滞した場合でも、異物の発熱を最小限に抑えることができる。 In the present embodiment, as shown in FIG. 4, the position of the top portion 205 on the housing 103b is an intermediate portion between the inner edge portion 211 and the outer periphery 212 of the feeding coil 103a in the direction of the central axis P1 of the feeding coil 103a. The position 213 is preferable. This is because the foreign matter present at the position of the intermediate portion 213 is most likely to generate heat in the radial direction of the feeding coil 103a. On the housing 103b, the position of the top portion 205 that is the farthest from the power supply coil 103a in the direction of the central axis P1 is the position of the intermediate portion 213 where the foreign material is most likely to generate heat, so that the foreign material does not slide down. Even in the case of stagnation, the heat generation of the foreign matter can be minimized.
　また、本実施の形態において、第１の傾斜部２０３及び第２の傾斜部２０４は、所定値未満の摩擦係数を有する材料でコーティングが施された保護カバーにより覆われてもよい。例えば、所定値として、各傾斜部に存在する異物を滑落可能な程度の値を設定すればよい。こうすることで、第１の傾斜部２０３及び第２の傾斜部２０４において、異物を滑りやすくすることができ、異物を凹部２０６又は給電部１０３の外側へ確実に滑り落とすことが可能となる。 In the present embodiment, the first inclined portion 203 and the second inclined portion 204 may be covered with a protective cover coated with a material having a friction coefficient less than a predetermined value. For example, the predetermined value may be set to a value that allows the foreign matter present in each inclined portion to slide down. By doing so, the foreign matter can be easily slipped in the first inclined portion 203 and the second inclined portion 204, and the foreign matter can be reliably slid down to the outside of the recess 206 or the power feeding portion 103.
　なお、上記実施の形態において、溝２０７の代わりに、凹部２０６の底部２０６ｂにおいて、貫通孔を設けてもよい。この貫通孔は、第１の傾斜部２０３上から滑り落ちてきた異物を外部へ排出するためのものである。 In the above embodiment, a through hole may be provided in the bottom 206b of the recess 206 instead of the groove 207. This through-hole is for discharging the foreign matter sliding down from the first inclined portion 203 to the outside.
　また、上記実施の形態に係る給電部１０３において、凹部２０６に、水抜きのための配水管を設けてもよい。こうすることで、凹部２０６の部分に水が溜まることを防ぐことができる。 Further, in the power feeding unit 103 according to the above embodiment, a water distribution pipe for draining water may be provided in the recess 206. By doing so, it is possible to prevent water from collecting in the concave portion 206.
　２０１２年３月２８日出願の特願２０１２－０７３７０９の日本出願に含まれる明細書、図面および要約書の開示内容は、すべて本願に援用される。 The disclosure of the specification, drawings and abstract contained in the Japanese application of Japanese Patent Application No. 2012-073709 filed on March 28, 2012 is incorporated herein by reference.
　本発明にかかる給電装置は、車輌に設けられた受電部に対して非接触で給電するのに好適である。 The power supply device according to the present invention is suitable for supplying power in a non-contact manner to a power receiving unit provided in a vehicle.
　１０３　給電部
　１０３ａ　給電コイル
　１０３ｂ　筐体
　１５３　受電部
　２０１　ベース
　２０２　カバー
　２０２ａ　上面
　２０２ｂ　平坦部
　２０２ｃ　外側壁部
　２０３　第１の傾斜部
　２０４　第２の傾斜部
　２０５　頂部
　２０６　凹部
　２０７　溝
　２０８　補強材
　２１１　内縁部
　２１２　外周
　２１３　中間部 DESCRIPTION OF SYMBOLS 103 Feed part 103a Feed coil 103b Case 153 Power receiving part 201 Base 202 Cover 202a Upper surface 202b Flat part 202c Outer wall part 203 1st inclination part 204 2nd inclination part 205 Top part 206 Recessed part 207 Groove 208 Reinforcement material 211 Inner edge part 212 Outer part 213 Middle part

Claims (5)

  1. 　車輌に設けられた受電部に対して電磁誘導を利用して非接触で給電する給電装置であって、
    　前記受電部と対向して前記受電部に対して給電するリング状の給電コイルと、
    　前記給電コイルを収納する筐体と、
    　を具備し、
    　前記筐体の前記受電部と対向する面である上面には、
    　前記給電コイルを前記受電部の方向に向かって前記筐体に投影した際に前記給電コイルが投影される部分に、前記給電コイルの径方向において、頂部から前記給電コイルの内縁部に向かって徐々に前記給電コイルに近づく第１の傾斜部と、
    　前記給電コイルが投影される部分に、前記給電コイルの径方向において、前記頂部から前記給電コイルの外周に向かって徐々に前記給電コイルに近づく第２の傾斜部と、
    　前記第１の傾斜部の前記頂部側と異なる端部と接する凹部と、
    　が形成される、
    　給電装置。     A power feeding device that feeds power in a non-contact manner using electromagnetic induction to a power receiving unit provided in a vehicle,
    A ring-shaped feeding coil that feeds power to the power receiving unit opposite to the power receiving unit;
    A housing for housing the feeding coil;
    Comprising
    On the upper surface that is the surface facing the power receiving unit of the housing,
    When the power supply coil is projected onto the housing in the direction of the power reception unit, the power supply coil is projected onto a portion where the power supply coil is projected gradually from the top toward the inner edge of the power supply coil in the radial direction of the power supply coil. A first inclined portion approaching the power feeding coil,
    A second inclined portion that gradually approaches the power supply coil from the top toward the outer periphery of the power supply coil, in the radial direction of the power supply coil, on the portion where the power supply coil is projected;
    A recess in contact with an end different from the top side of the first inclined portion;
    Is formed,
    Power supply device.
  2. 　前記筐体上の前記頂部の位置は、前記給電コイルの中心軸方向における、前記給電コイルの内縁部と外周との中間部の位置である、
    　請求項１記載の給電装置。     The position of the top portion on the housing is a position of an intermediate portion between the inner edge portion and the outer periphery of the feeding coil in the central axis direction of the feeding coil.
    The power feeding device according to claim 1.
  3. 　前記第１の傾斜部の表面、及び、前記第２の傾斜部の表面は、所定値未満の摩擦係数を有する材料に覆われる、
    　請求項１記載の給電装置。     The surface of the first inclined portion and the surface of the second inclined portion are covered with a material having a friction coefficient less than a predetermined value.
    The power feeding device according to claim 1.
  4. 　前記凹部に形成された溝、を更に具備する、
    　請求項１記載の給電装置。     Further comprising a groove formed in the recess,
    The power feeding device according to claim 1.
  5. 　前記第１の傾斜部を支持する補強部材、を更に具備する、
    　請求項１記載の給電装置。     A reinforcing member that supports the first inclined portion;
    The power feeding device according to claim 1.
PCT/JP2013/001474 2012-03-28 2013-03-07 Power supply apparatus WO2013145579A1 (en)

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US14/387,460 US9979229B2 (en) 2012-03-28 2013-03-07 Power supply apparatus
CN201380013638.2A CN104170210B (en) 2012-03-28 2013-03-07 Electric supply installation
EP13767286.1A EP2833510B1 (en) 2012-03-28 2013-03-07 Power supply apparatus

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