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WO2012090342A1 - Bobine utilisée dans un système d'alimentation électrique sans contact - Google Patents

Bobine utilisée dans un système d'alimentation électrique sans contact Download PDF

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Publication number
WO2012090342A1
WO2012090342A1 PCT/JP2011/001899 JP2011001899W WO2012090342A1 WO 2012090342 A1 WO2012090342 A1 WO 2012090342A1 JP 2011001899 W JP2011001899 W JP 2011001899W WO 2012090342 A1 WO2012090342 A1 WO 2012090342A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic core
coil
power transmission
magnetic
transmission coil
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/JP2011/001899
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English (en)
Japanese (ja)
Inventor
義治 大森
大介 別荘
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
Priority claimed from JP2010289373A external-priority patent/JP2014043115A/ja
Priority claimed from JP2010289372A external-priority patent/JP2014043114A/ja
Application filed by Panasonic Corp filed Critical Panasonic Corp
Publication of WO2012090342A1 publication Critical patent/WO2012090342A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B60L53/36—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles by positioning the vehicle
    • 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
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B60L53/38—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/36—Temperature of vehicle components or parts
    • 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
    • Y02T90/12—Electric charging stations
    • 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 used in a non-contact power feeding system that transmits power in a non-contact manner from a built-in primary coil to a secondary coil mounted in an electric propulsion vehicle such as an electric vehicle or a hybrid vehicle. .
  • FIG. 16 is a schematic diagram showing a configuration of a conventional non-contact power feeding device 6.
  • the non-contact power feeding device (primary side) F connected to the power panel of the power source 9 on the external ground side is supplied with power to the power receiving device (secondary side) G mounted on the electric propulsion vehicle.
  • They are arranged to face each other through an air gap that is a void space without physical connection.
  • an induced electromotive force is generated in the secondary coil 8 provided in the power receiving device G. Electric power is transmitted to the coil 8 in a non-contact manner.
  • the power receiving device G is connected to the in-vehicle battery 10, for example, and the electric power transmitted as described above is charged in the in-vehicle battery 10.
  • the on-vehicle motor 11 is driven by the electric power stored in the battery 10. Note that, during the non-contact power supply process, for example, the wireless communication device 12 exchanges necessary information between the power supply device F and the power reception device G.
  • FIG. 17 is a schematic diagram showing the internal structure of the power feeding device F and the power receiving device G.
  • FIG. 17A is a schematic diagram illustrating an internal structure when the power feeding device F is viewed from above and the power receiving device G is viewed from below.
  • FIG. 17B is a schematic diagram illustrating an internal structure when the power feeding device F and the power receiving device G are viewed from the side.
  • the power feeding device F is an example of a coil unit, and includes a primary coil 7, a primary magnetic core 13 having a flat plate shape, a back plate 15, a cover 16, and the like.
  • the power receiving device G is another example of a coil unit. Briefly speaking, the power receiving device G has a symmetrical structure with the power feeding device F, and has a flat secondary coil 8, a secondary magnetic core 14, and a back plate. 15, a cover 16 and the like, and the surfaces of the primary coil 7 and the primary magnetic core 13 and the surfaces of the secondary coil 8 and the secondary magnetic core 14 are respectively molded resin 17 mixed with a foam material 18. Covered and fixed.
  • both the power feeding device F and the power receiving device G are filled with the mold resin 17 between the back plate 15 and the cover 16, and the primary coil 7, the secondary coil 8, the primary magnetic core 13, and the secondary magnetic core core inside. 14 surfaces are coated and fixed.
  • the mold resin 17 is made of, for example, silicon resin.
  • Patent Documents 2 and 3 also disclose a flat primary magnetic core and a secondary magnetic core.
  • each magnetic core may be broken or chipped due to vibration, external impact or load.
  • the secondary magnetic core may protrude from the power receiving device G when a large external impact is applied to the vehicle. This is especially true when a crushable body is used.
  • the main object of the present invention is to provide a coil unit that can be used in a non-contact power feeding system that can reduce the risk of cracking and chipping of a magnetic core. It is.
  • the present invention provides a coil unit used in a non-contact power feeding system that supplies power from a power feeding device to a power receiving device in a non-contact manner, the coil generating a magnetic flux, and generated by the coil.
  • a magnetic core that collects the magnetic flux, and the magnetic core includes at least two magnetic core members that are continuously arranged in a direction along the magnetic flux generated by the coil.
  • the magnetic core member alone can be made smaller than a flat magnetic core.
  • the magnetic core part as a whole is more susceptible to vibration and external components than the conventional configuration. It becomes possible to increase resistance to impact and load. As a result, it is possible to reduce the breakage or chipping of the magnetic core member.
  • FIG. 1 is a schematic diagram showing an installation example of a non-contact power feeding system including a non-contact power feeding apparatus according to the present invention.
  • 2 is an external perspective view of the non-contact power feeding apparatus of FIG. 3 is a perspective view showing an internal structure of the non-contact power feeding apparatus of FIG. 4 is a longitudinal sectional view of the non-contact power feeding device taken along line IV-IV in FIG. 5 is an external perspective view in which a part of the non-contact power feeding apparatus of FIG. 2 is cut away.
  • 6 is a schematic diagram showing a top view of the magnetic core 108 shown in FIG. 7 is a schematic view showing the magnetic core members 108a and 108b shown in FIG. FIG.
  • FIG. 8 is a schematic view showing another example of the magnetic core members 108a and 108b shown in FIG.
  • FIG. 9 is a schematic diagram showing an installation example of a non-contact power feeding system including the non-contact power feeding apparatus according to the present invention.
  • 10 is an external perspective view of the non-contact power feeding apparatus of FIG. 11 is a perspective view showing the internal structure of the non-contact power feeding apparatus of FIG. 12 is a longitudinal sectional view of the non-contact power feeding device taken along line IV-IV in FIG. 13 is an external perspective view in which a part of the non-contact power feeding apparatus of FIG. 10 is cut away.
  • 14 is a schematic diagram showing a top view of the magnetic core 108 shown in FIG.
  • FIG. 15 is a schematic diagram showing the magnetic core members 108a and 108b shown in FIG.
  • FIG. 16 is a schematic diagram showing a configuration of a conventional non-contact power feeding device.
  • FIG. 17 is a schematic diagram showing the internal structure of the non-contact power feeding device of FIG. 16 and the power receiving device disposed opposite to the power feeding device.
  • FIG. 1 is a schematic diagram illustrating an installation example of a non-contact power feeding system S including the non-contact power feeding apparatus 100 according to the first embodiment of the present invention.
  • the non-contact power feeding system S includes a non-contact power feeding device (hereinafter simply referred to as “power feeding device”) 100 arranged at a predetermined place on the ground and a power receiving device 200 installed on the moving body side. ing.
  • This non-contact power feeding system S is typically used for charging the electric propulsion vehicle 400, for example.
  • the power receiving device 200 is installed in an electric propulsion vehicle 400 as a moving body, and the power feeding device 100 is typically installed on the ground.
  • the present invention is not limited to this, and the power supply apparatus 100 may be buried in a parking space, for example, or configured to be movable.
  • FIG. 2 is an external perspective view of the power supply apparatus 100 shown in FIG. 1, and FIG. 3 shows the internal structure of the power supply apparatus 100 shown in FIG. 2, particularly when the cover 114 shown in FIG. 2 is removed.
  • FIG. 4 is a longitudinal sectional view of the power feeding apparatus 100 taken along line IV-IV in FIG.
  • the power feeding device 100 is an example of a coil unit, and is a heat conducting member 104, a coil base 106, a magnetic core 108, and a mica plate 110 that are sequentially placed and fixed on the bottom plate 102.
  • a power transmission coil 112, and an electronic component group 116 mounted and fixed on the bottom plate 102 at a position spaced apart from these components, a heat conducting member 104, a coil base 106, a magnetic core 108, a mica plate 110, a power transmission
  • the coil 112 and the electronic component group 116 are covered with a cover 114.
  • the bottom plate 102 has a substantially rectangular shape, and its lower surface is an installation surface.
  • a partition wall 118 is formed on the cover 114, and the partition wall 118 has an annular (tubular) shape with an outer diameter of ⁇ and a height of h.
  • the partition wall 118 is integrally formed with the cover 114 so as to protrude downward from the cover 114, and is dimensioned so that the lower end of the partition wall 118 can reach the bottom plate 102, and may be applied to the cover 114 from above.
  • the strength against the load (for example, human weight) is secured.
  • the heat conducting member 104, the coil base 106, the magnetic core 108, the mica plate 110, the power transmission coil 112, and the electronic component group 116 are disposed outside the partition wall 118.
  • the heat conducting member 104 substantially has an annular (cylindrical) shape having a predetermined height h1 with an inner diameter slightly larger than the outer diameter ⁇ of the partition wall 118. If a conductive material is used as the material of the heat conducting member 104, it is magnetically coupled by the magnetic field formed by the power transmission coil 112, and an induced current flows to cause unnecessary heat generation, leading to problems such as a decrease in power supply efficiency.
  • a material other than a metal or a conductive material is used as the material of the heat conducting member 104. For example, a resin containing a ceramic or a filler that improves the heat conductivity is used.
  • the thermal conductivity of the heat conducting member 104 is preferably higher than the thermal conductivity of air in a predetermined temperature range (for example, 150 ° C. or lower), and is set to 1 W / mK or higher, for example.
  • the heat conductivity of the heat conducting member 104 is preferably as high as possible.
  • the heat conduction member 104 is fixed to the bottom plate 102 with, for example, bolts or the like in a state where the partition wall 118 is inserted into a through hole formed in the central portion in the radial direction.
  • a coil base 106 is placed, and a magnetic core 108 for concentrating the magnetic flux generated by the power transmission coil 112 is placed on the annular coil base 106.
  • the coil base 106 and the magnetic core 108 substantially have an inner diameter slightly larger than the outer diameter ⁇ of the partition wall 118, have an annular shape with a thickness t1, and are formed at the center in the radial direction.
  • the partition wall 118 is inserted through the through hole and is disposed on the heat conducting member 104.
  • an annular mica plate 110 as an electrical insulating plate is placed on the magnetic core 108, and the mica plate 110 has an inner diameter substantially larger than the outer diameter ⁇ of the partition wall 118, A partition wall 118 is inserted through a through hole formed in the radial center.
  • the power transmission coil 112 is wound so that its inner diameter is substantially larger than the outer diameter ⁇ of the partition wall 118, and has an annular shape with a thickness t2 (including the thickness of the mica plate 110). .
  • a partition wall 118 is inserted through a hole in the central portion in the radial direction of the power transmission coil 112.
  • the power transmission coil 112 is comprised with the copper wire etc., for convenience, it is drawn in disk shape, for example in FIG.
  • the electronic component group 116 is necessary for the operation of the power supply apparatus 100 (operation for performing non-contact power supply to the power receiving apparatus 200), such as a capacitor.
  • the bottom plate 102 is designed such that its long side is along the traveling direction of the electric propulsion vehicle 400 (indicated by the arrow A). Note that the direction indicated by the arrow A is also the front-rear direction of the power supply apparatus 100.
  • the heat conducting member 104, the magnetic core 108, the power transmission coil 112, and the like are disposed near the front or rear of the power supply apparatus 100 or the bottom plate 102 as viewed from the electronic component group 116.
  • a space is created behind or in front of the power feeding device 100 or the bottom plate 102, and the electronic component group 116 is disposed in this space while being isolated from the power transmission coil 112 and the like.
  • the heat conducting member 104, the coil base 106, the magnetic core 108, the mica plate 110, and the power transmission coil 112, which are sequentially laminated on the bottom plate 102, are held by a resin coil holder 120.
  • Projecting portions are provided at a plurality of locations on the outer peripheral surface of the coil holder 120, and are attached to the bottom plate 102 with bolts or the like through the projecting portions.
  • heat conducting member 104 the coil base 106, the magnetic core 108, and the mica plate 110 may be fixed to each other with an adhesive or the like.
  • the heat conducting member 104, the coil base 106, the magnetic core 108, the mica plate 110, and the power transmission coil 112 are surrounded by a cylindrical shield member 122 provided on the radially outer side.
  • the shield member 122 surrounds the power transmission coil 112 with the bottom plate 102 and the shield member 122.
  • the cover 114 is made of resin concrete or FRP (Fiber Reinforced Plastics), and the bottom plate 102 is formed from the first upper wall 114a, the second upper wall 114b, the first upper wall 114a, and / or the second upper wall 114b. And a plurality of side surfaces 114c extending obliquely toward the bottom, and are attached to the bottom plate 102 by, for example, bolts or the like. Therefore, the heat conducting member 104, the coil base 106, the magnetic core 108, the mica plate 110, and the power transmission coil are constituted by the first upper wall 114a, the second upper wall 114b, the plurality of side surfaces 114c, and the bottom plate 102 of the cover 114. 112, a space capable of accommodating the electronic component group 116 is formed.
  • FRP Fiber Reinforced Plastics
  • the cover 114 is formed with a partition wall 124 extending from a connection portion between the first upper wall 114 a and the second upper wall 114 b toward the bottom plate 102.
  • a partition wall 124 has a plate-like shape having a predetermined thickness t3 and a height (maximum value) of h2, and has a heat insulating property.
  • the partition wall 124 is provided between the power transmission coil 112 and the electronic component group 116 so as to cross the bottom plate 102 to the left and right (in the direction of the arrow A).
  • the cover 114 is integrally formed.
  • the cover 114 is designed such that the first upper wall 114 a covers the power transmission coil 112 and the second upper wall 114 b covers the electronic component group 116.
  • the partition wall 124 extending downward from the connection portion between the first upper wall 114a and the second upper wall 114b is dimensioned so that the lower end thereof reaches the bottom plate 102.
  • the space within the cover 114 (the space surrounded by the bottom plate 102 and the cover 114) is a first housing space S1 that houses the power transmission coil 112 and the like, and a second housing space that houses the electronic component group 116. Partitioned by a partition wall 124 into S2. As a result, Joule heat generated from the power transmission coil 112 is blocked by the partition wall 124 having heat insulation performance, and is prevented from being transmitted to the electronic component group 116.
  • one end of the power transmission coil 112 is connected to the lead wire 130, the other end of the power transmission coil 112 is connected to another lead wire 132, and the lead wire 130 is connected to the cover 114.
  • the lead wire 132 is connected to the electronic component group 116 and penetrated through one of the side walls 114c and led out to the outside. .
  • the lead wires 130 and 132 need to penetrate the partition wall 124.
  • the partition wall 124 is integrally formed with the cover 114, the wiring of the lead wires 130 and 132 in the cover 114 is extremely difficult.
  • a substantially rectangular notch is provided in a part of the partition wall 124, and the heat insulating member 126 having two through holes 126a having substantially the same shape as the notch is fitted into the notch of the partition wall 124.
  • the heat insulating member 126 is attached to the bottom plate 102 after the lead wires 130 and 132 are inserted into the two through holes 126a.
  • bushes 134 are respectively attached to the two through holes 126a to improve the heat insulating performance of the heat insulating member 126.
  • This configuration is advantageous in terms of workability because all the parts except the cover 114 are attached to the bottom plate 102 and the lead wires 130 and 132 are wired, and then the cover 114 can be attached to the bottom plate 102.
  • the partition wall 124 can also have a double structure with an air layer interposed therebetween, and the double structure partition wall is further superior in terms of heat insulation performance.
  • the distance from the upper surface of the bottom plate 102 to the upper end of the power transmission coil 112 is D1 ( ⁇ h1 + t1 + t2), and the distance from the upper surface of the bottom plate 102 to the lower surface of the first upper wall 114a of the cover 114 Is D2, the distance D2 is set larger than the distance D1 (D2> D1). That is, a gap having a predetermined height (D2-D1) is formed between the power transmission coil 112 and the cover 114. The height of the gap is preferably set equal, and this gap is an air layer.
  • the first upper wall 114a from the bottom plate 102 is used. And the distance from the bottom plate 102 to the second upper wall 114b are set to be different from each other. In the example of FIG. 4, the height of the first upper wall 114a is set higher than the height of the second upper wall 114b.
  • the non-contact power feeding apparatus 100 having the above configuration may be buried in a parking space shallowly.
  • the non-contact power feeding apparatus 100 itself may be configured to be movable.
  • the power transmission coil 112 and the electronic component group 116 are arranged in line along the traveling direction of the electric propulsion vehicle 400.
  • the height of the first upper wall 114a and the height of the second upper wall 114b of the cover 114 are different from each other, it is possible to instantly identify the front and rear (direction) of the power feeding device 100.
  • the power supply apparatus 100 can be easily attached.
  • the power receiving device 200 (see FIG. 1) mounted on the electric propulsion vehicle 400 and the power feeding device 100 are positioned so as to face each other through the air gap. In such a positioned state, power is transmitted from the power feeding device 100 to the power receiving device 200 in a contactless manner.
  • the power supply apparatus 100 is installed so that the bottom plate 102 faces downward, whether it is buried or movable. Therefore, in the case of the movable power supply apparatus 100, there is a possibility that a person may touch the cover 114. Further, even in the case of embedding, it is not possible to embed it so deeply, and in some cases, it is assumed that the cover 114 is exposed.
  • an air layer that exhibits a heat insulating effect is provided between the power transmission coil 112 and the cover 114, and the cover 114 that can be touched by the person, particularly the top plate portion ( The Joule heat from the power transmission coil 112 is transmitted to the first upper wall 114a as much as possible. That is, it is possible to provide the power supply apparatus 100 that can reduce overheating of the cover 114.
  • a heat insulating member having a lower thermal conductivity than air can be interposed in the air layer between the power transmission coil 112 and the cover 114. Instead of the air layer, a heat insulating member having a lower thermal conductivity than air is used. By providing, transmission of Joule heat from the power transmission coil 112 to the cover 114 can be further reduced.
  • the heat conducting member 104 has a thermal conductivity larger than that of air. If there is an air layer in the part of the heat conducting member 104, it will move upward by convection when the air is heated, so there will be a high temperature part above the air layer, and heat transfer cannot be expected downward, By disposing a solid having a higher thermal conductivity than air, heat transfer is merely performed by heat conduction and there is no direction of heat transfer, so heat can be efficiently guided downward. Thus, Joule heat generated from the power transmission coil 112 is transmitted to the bottom plate 102 via the heat conducting member 104 and is dissipated.
  • the distance between the upper end of the power transmission coil 112 and the lower surface of the first upper wall 114a is set to be equal, Joule heat can be evenly transmitted to the first upper wall 114a. It is possible to prevent a local temperature rise of the upper wall 114a.
  • the Joule heat generated from the power transmission coil 112 is blocked by the partition wall 124 having heat insulation performance, and can be prevented from being transmitted to the electronic component group 116.
  • the non-contact electric power feeder which can reduce the overheating of an electronic component can be provided.
  • FIG. 6 is a schematic diagram showing a top view of the magnetic core core portion 108 shown in FIG.
  • the magnetic core 108 is a hatched portion, and is composed of a plurality of magnetic core members 108a (shown by right-down hatching) and 108b (shown by left-down hatching).
  • reference numerals 108a and 108b are assigned to one magnetic core member.
  • Each of the magnetic core members 108a and 108b is made of a high magnetic permeability material typified by ferrite.
  • a plurality of the magnetic core members 108a are arranged along the magnetic flux generated by the power transmission coil 112 on the inner peripheral side of the power transmission coil 112 (that is, near the center C of the power transmission coil 112). More specifically, when the power transmission coil 112 has a substantially concentric shape, the magnetic core member 108 a is radially arranged on the coil base 106 with the center C of the power transmission coil 112 as a reference.
  • a plurality of magnetic core members 108b are arranged on the outer peripheral side of the power transmission coil 112 along the magnetic flux generated by the power transmission coil 112 in the same manner as the magnetic core members 108a. More specifically, some of the plurality of magnetic core members 108b are continuously arranged with the magnetic core member 108a in the direction along the magnetic flux generated by the power transmission coil 112. That is, the combination 108c of the magnetic core members 108a and 108b is arranged radially with respect to the center C of the power transmission coil 112 when the power transmission coil 112 is substantially concentric. In the present embodiment, for example, approximately half of the plurality of magnetic core members 108b are continuously arranged with the magnetic core member 108a. For example, the total number of the plurality of magnetic core members 108b is: You may make it arrange
  • the magnetic core members 108a and 108b constituting the combination 108c have a rectangular parallelepiped shape having substantially the same cross-sectional shape perpendicular to the magnetic flux from the power transmission coil 112.
  • the interval between the magnetic core materials 108a and 108b arranged in the arc direction is widened, so that the magnetic flux passing through the space increases and the three-dimensional spread. Due to the spread of magnetic flux, it may cause problems such as increasing the loss in the nearby metal part or lowering the self-inductance of the coil.
  • it may be configured as magnetic core members 108a and 108b as shown in FIGS. 7B to 7C.
  • both the magnetic core members 108a and 108b have an isosceles trapezoidal shape when viewed from above.
  • the magnetic core member 108b has an isosceles trapezoidal shape when viewed from above, and the magnetic core member 108a has a rectangular parallelepiped shape. If the magnetic core material 108a, 108b is not transferred without leaking the magnetic flux passing through the interior, loss in the nearby transmission coil 112 or the like occurs.
  • the magnetic flux As the magnetic flux is concentrated toward the inner circumferential direction, it tends to spread due to repulsion between the magnetic fluxes, so that the joint cross-sectional area of the inner core core material 108a is equal to or greater than the joint cross-sectional area of the magnetic core core material 108b. , Leakage magnetic flux can be suppressed.
  • the magnetic core portion 108 including the magnetic core members 108 a and 108 b is disposed under the power transmission coil 112.
  • the magnetic core 108 is not a single flat plate, but is composed of relatively small magnetic core members 108a and 108b. Accordingly, when viewed as a single core core member 108a, 108b, the core core members 108a, 108b are resistant to vibration, external impact and load as compared with a flat core core, and the core core members 108a, 108b are cracked or chipped. This can be reduced.
  • the magnetic core members 108a and 108b are arranged so as to spread on a plane parallel to the installation surface, the load is frequently applied in the vertical direction, and the stress is transferred to the seam by being separated from the magnetic core members 108a and 108b. Since it can be escaped by spreading, resistance is increased.
  • the power supply device 100 includes the magnetic core 108
  • the power receiving device 200 has a symmetrical structure with the power feeding device 100, so that the magnetic core 108 can be incorporated into the power receiving device 200.
  • the magnetic core 108 since the magnetic core 108 is provided in the electric propulsion vehicle, the magnetic core members 108a and 108b are not protruded when a large external impact is applied to the power receiving device 200, as shown in FIG. Thus, it is preferable to configure like the magnetic core members 108a and 108b.
  • the incident side end surface Sin and the emission side end surface Sout are not perpendicular to the direction of the magnetic flux, but are rotated by the same angle ⁇ with respect to the direction of the magnetic flux. Accordingly, even when an impact is applied, the magnetic core members 108a and 108b move in the shifting direction along the respective facing surfaces, so that the casing of the power receiving device 200 is less likely to protrude.
  • FIG. 9 is a schematic diagram showing an installation example of the non-contact power supply system S including the non-contact power supply apparatus 100 according to the present invention.
  • the non-contact power feeding system S includes a non-contact power feeding device (hereinafter simply referred to as “power feeding device”) 100 disposed at a predetermined place on the ground and a power receiving device 200 installed on the moving body side. ing.
  • This non-contact power feeding system S is typically used for charging the electric propulsion vehicle 400, for example.
  • the power receiving device 200 is installed in an electric propulsion vehicle 400 as a moving body, and the power feeding device 100 is typically installed on the ground.
  • the present invention is not limited to this, and the power supply apparatus 100 may be buried in a parking space, for example, or configured to be movable.
  • FIG. 10 is an external perspective view of the power supply apparatus 100 shown in FIG. 9, and FIG. 11 shows the internal structure of the power supply apparatus 100 shown in FIG. 10, particularly when the cover 114 shown in FIG. 10 is removed. It is a perspective view. 12 is a longitudinal sectional view of the power feeding apparatus 100 taken along line IV-IV in FIG.
  • the power supply apparatus 100 is an example of a coil unit, and is a heat conducting member 104, a coil base 106, a magnetic core 108, and a mica plate 110 that are sequentially placed and fixed on the bottom plate 102.
  • a power transmission coil 112, and an electronic component group 116 mounted and fixed on the bottom plate 102 at a position spaced apart from these components, a heat conducting member 104, a coil base 106, a magnetic core 108, a mica plate 110, a power transmission
  • the coil 112 and the electronic component group 116 are covered with a cover 114.
  • the bottom plate 102 has a substantially rectangular shape, and its lower surface is an installation surface.
  • a partition wall 118 is formed on the cover 114, and the partition wall 118 has an annular (tubular) shape with an outer diameter of ⁇ and a height of h.
  • the partition wall 118 is integrally formed with the cover 114 so as to protrude downward from the cover 114, and is dimensioned so that the lower end of the partition wall 118 can reach the bottom plate 102, and may be applied to the cover 114 from above.
  • the strength against the load (for example, human weight) is secured.
  • the heat conducting member 104, the coil base 106, the magnetic core 108, the mica plate 110, the power transmission coil 112, and the electronic component group 116 are disposed outside the partition wall 118.
  • the heat conducting member 104 substantially has an annular (cylindrical) shape having a predetermined height h1 with an inner diameter slightly larger than the outer diameter ⁇ of the partition wall 118. If a conductive material is used as the material of the heat conducting member 104, it is magnetically coupled by the magnetic field formed by the power transmission coil 112, and an induced current flows to cause unnecessary heat generation, leading to problems such as a decrease in power supply efficiency.
  • a material other than a metal or a conductive material is used as the material of the heat conducting member 104. For example, a resin containing a ceramic or a filler that improves the heat conductivity is used.
  • the thermal conductivity of the heat conducting member 104 is preferably higher than the thermal conductivity of air in a predetermined temperature range (for example, 150 ° C. or lower), and is set to 1 W / mK or higher, for example.
  • the heat conductivity of the heat conducting member 104 is preferably as high as possible.
  • the heat conduction member 104 is fixed to the bottom plate 102 with, for example, bolts or the like in a state where the partition wall 118 is inserted into a through hole formed in the central portion in the radial direction.
  • a coil base 106 is placed, and a magnetic core 108 for concentrating the magnetic flux generated by the power transmission coil 112 is placed on the annular coil base 106.
  • the coil base 106 and the magnetic core 108 substantially have an inner diameter slightly larger than the outer diameter ⁇ of the partition wall 118, have an annular shape with a thickness t1, and are formed at the center in the radial direction.
  • the partition wall 118 is inserted through the through hole and is disposed on the heat conducting member 104.
  • an annular mica plate 110 as an electrical insulating plate is placed on the magnetic core 108, and the mica plate 110 has an inner diameter substantially larger than the outer diameter ⁇ of the partition wall 118, A partition wall 118 is inserted through a through hole formed in the radial center.
  • the power transmission coil 112 is wound so that its inner diameter is substantially larger than the outer diameter ⁇ of the partition wall 118, and has an annular shape with a thickness t2 (including the thickness of the mica plate 110). .
  • a partition wall 118 is inserted through a hole in the central portion in the radial direction of the power transmission coil 112.
  • the power transmission coil 112 is comprised with the copper wire etc., in order to simplify illustration, it is drawn in disk shape, for example in FIG.
  • the electronic component group 116 is necessary for the operation of the power supply apparatus 100 (operation for performing non-contact power supply to the power receiving apparatus 200), such as a capacitor.
  • the bottom plate 102 is designed such that its long side is along the traveling direction of the electric propulsion vehicle 400 (indicated by an arrow A). Note that the direction indicated by the arrow A is also the front-rear direction of the power supply apparatus 100.
  • the heat conducting member 104, the magnetic core 108, the power transmission coil 112, and the like are disposed near the front or rear of the power supply apparatus 100 or the bottom plate 102 as viewed from the electronic component group 116.
  • a space is created behind or in front of the power feeding device 100 or the bottom plate 102, and the electronic component group 116 is disposed in this space while being isolated from the power transmission coil 112 and the like.
  • the heat conductive member 104, the coil base 106, the magnetic core 108, the mica plate 110, and the power transmission coil 112 sequentially stacked on the bottom plate 102 are held by a resin coil holder 120.
  • Projecting portions are provided at a plurality of locations on the outer peripheral surface of the coil holder 120, and are attached to the bottom plate 102 with bolts or the like through the projecting portions.
  • heat conducting member 104 the coil base 106, the magnetic core 108, and the mica plate 110 may be fixed to each other with an adhesive or the like.
  • the heat conducting member 104, the coil base 106, the magnetic core 108, the mica plate 110, and the power transmission coil 112 are surrounded by a cylindrical shield member 122 provided on the radially outer side.
  • the shield member 122 surrounds the power transmission coil 112 with the bottom plate 102 and the shield member 122.
  • the cover 114 is made of resin concrete or FRP (Fiber Reinforced Plastics), and the bottom plate 102 is formed from the first upper wall 114a, the second upper wall 114b, the first upper wall 114a, and / or the second upper wall 114b. And a plurality of side surfaces 114c extending obliquely toward the bottom, and are attached to the bottom plate 102 by, for example, bolts or the like. Therefore, the heat conducting member 104, the coil base 106, the magnetic core 108, the mica plate 110, and the power transmission coil are constituted by the first upper wall 114a, the second upper wall 114b, the plurality of side surfaces 114c, and the bottom plate 102 of the cover 114. 112, a space capable of accommodating the electronic component group 116 is formed.
  • FRP Fiber Reinforced Plastics
  • the cover 114 is formed with a partition wall 124 extending from a connection portion between the first upper wall 114 a and the second upper wall 114 b toward the bottom plate 102.
  • a partition wall 124 has a plate-like shape having a predetermined thickness t3 and a height (maximum value) of h2, and has a heat insulating property.
  • the partition wall 124 is provided between the power transmission coil 112 and the electronic component group 116 so as to cross the bottom plate 102 to the left and right (in the direction of the arrow A).
  • the cover 114 is integrally formed.
  • the cover 114 is designed such that the first upper wall 114 a covers the power transmission coil 112 and the second upper wall 114 b covers the electronic component group 116.
  • the partition wall 124 extending downward from the connection portion between the first upper wall 114 a and the second upper wall 114 b is dimensioned so that the lower end thereof reaches the bottom plate 102.
  • the space within the cover 114 (the space surrounded by the bottom plate 102 and the cover 114) is a first housing space S1 that houses the power transmission coil 112 and the like, and a second housing space that houses the electronic component group 116. Partitioned by a partition wall 124 into S2. Thereby, the Joule heat generated from the power transmission coil 112 is blocked by the partition wall 124 having a heat insulating performance, and is prevented from being transmitted to the electronic component group 116.
  • one end of the power transmission coil 112 is connected to the lead wire 130, the other end of the power transmission coil 112 is connected to another lead wire 132, and the lead wire 130 is connected to the cover 114.
  • the lead wire 132 is connected to the electronic component group 116 and penetrated through one of the side walls 114c and led out to the outside. .
  • the lead wires 130 and 132 need to penetrate the partition wall 124.
  • the partition wall 124 is integrally formed with the cover 114, the wiring of the lead wires 130 and 132 in the cover 114 is extremely difficult.
  • a substantially rectangular notch is provided in a part of the partition wall 124, and the heat insulating member 126 having two through holes 126a having substantially the same shape as the notch is fitted into the notch of the partition wall 124.
  • the heat insulating member 126 is attached to the bottom plate 102 after the lead wires 130 and 132 are inserted into the two through holes 126a.
  • bushes 134 are respectively attached to the two through holes 126a to improve the heat insulating performance of the heat insulating member 126.
  • This configuration is advantageous in terms of workability because all the parts except the cover 114 are attached to the bottom plate 102 and the lead wires 130 and 132 are wired, and then the cover 114 can be attached to the bottom plate 102.
  • the partition wall 124 can also have a double structure with an air layer interposed therebetween, and the double structure partition wall is further superior in terms of heat insulation performance.
  • the distance from the upper surface of the bottom plate 102 to the upper end of the power transmission coil 112 is D1 ( ⁇ h1 + t1 + t2), and the distance from the upper surface of the bottom plate 102 to the lower surface of the first upper wall 114a of the cover 114.
  • the distance D2 is set larger than the distance D1 (D2> D1). That is, a gap having a predetermined height (D2-D1) is formed between the power transmission coil 112 and the cover 114.
  • the height of the gap is preferably set equal, and this gap is an air layer.
  • the first upper wall 114a from the bottom plate 102 is used. And the distance from the bottom plate 102 to the second upper wall 114b are set to be different from each other. In the example of FIG. 12, the height of the first upper wall 114a is set higher than the height of the second upper wall 114b.
  • the non-contact power feeding apparatus 100 having the above configuration may be buried in a parking space shallowly.
  • the non-contact power feeding apparatus 100 itself may be configured to be movable.
  • the power transmission coil 112 and the electronic component group 116 are arranged in line along the traveling direction of the electric propulsion vehicle 400.
  • the height of the first upper wall 114a and the height of the second upper wall 114b of the cover 114 are different from each other, it is possible to instantly identify the front and rear (direction) of the power feeding device 100.
  • the power supply apparatus 100 can be easily attached.
  • the power receiving device 200 (see FIG. 9) mounted on the electric propulsion vehicle 400 and the power feeding device 100 are positioned so as to face each other through the air gap. In such a positioned state, power is transmitted from the power feeding device 100 to the power receiving device 200 in a contactless manner.
  • the power supply apparatus 100 is installed so that the bottom plate 102 faces downward, whether it is buried or movable. Therefore, in the case of the movable power supply apparatus 100, there is a possibility that a person may touch the cover 114. Further, even in the case of embedding, it is not possible to embed it so deeply, and in some cases, it is assumed that the cover 114 is exposed.
  • an air layer that exhibits a heat insulating effect is provided between the power transmission coil 112 and the cover 114, and the cover 114 that can be touched by the person, particularly the top plate portion ( The Joule heat from the power transmission coil 112 is transmitted to the first upper wall 114a as much as possible. That is, it is possible to provide the power supply apparatus 100 that can reduce overheating of the cover 114.
  • a heat insulating member having a lower thermal conductivity than air can be interposed in the air layer between the power transmission coil 112 and the cover 114. Instead of the air layer, a heat insulating member having a lower thermal conductivity than air is used. By providing, transmission of Joule heat from the power transmission coil 112 to the cover 114 can be further reduced.
  • the heat conducting member 104 has a thermal conductivity larger than that of air. If there is an air layer in the part of the heat conducting member 104, it will move upward by convection when the air is heated, so there will be a high temperature part above the air layer, and heat transfer cannot be expected downward, By disposing a solid having a higher thermal conductivity than air, heat transfer is merely performed by heat conduction and there is no direction of heat transfer, so heat can be efficiently guided downward. Thus, Joule heat generated from the power transmission coil 112 is transmitted to the bottom plate 102 via the heat conducting member 104 and is dissipated.
  • the distance between the upper end of the power transmission coil 112 and the lower surface of the first upper wall 114a is set to be equal, Joule heat can be evenly transmitted to the first upper wall 114a. It is possible to prevent a local temperature rise of the upper wall 114a.
  • the Joule heat generated from the power transmission coil 112 is blocked by the partition wall 124 having heat insulation performance, and can be prevented from being transmitted to the electronic component group 116.
  • the non-contact electric power feeder which can reduce the overheating of an electronic component can be provided.
  • FIGS. 9 to 13 the magnetic core 108 is illustrated on a flat plate for the sake of simplicity, but actually, the magnetic core 108 is configured as shown in FIG.
  • FIG. 14 is a schematic diagram showing a top view of the magnetic core 108 shown in FIG.
  • the magnetic core 108 is a hatched part, and is composed of a plurality of magnetic core members 108a (shown by right-down hatching) and 108b (shown by left-down hatching).
  • reference numeral 108a is assigned to one magnetic core member
  • reference numeral 108b is assigned to two magnetic core members.
  • Each of the magnetic core members 108a and 108b is made of a high magnetic permeability material typified by ferrite.
  • a plurality of the magnetic core members 108a are arranged along the magnetic flux generated from the power transmission coil 112 on the inner peripheral side of the power transmission coil 112 (that is, near the center C of the power transmission coil 112). More specifically, when the power transmission coil 112 has a substantially concentric shape, the magnetic core member 108 a is radially arranged on the coil base 106 with the center C of the power transmission coil 112 as a reference.
  • a plurality of magnetic core members 108b are arranged on the outer peripheral side of the power transmission coil 112 (that is, not near the center C of the power transmission coil 112) along the magnetic flux generated by the power transmission coil 112 in the same manner as the magnetic core member 108a. Yes. More specifically, some of the plurality of magnetic core members 108b are continuously arranged with the magnetic core member 108a in the direction along the magnetic flux generated by the power transmission coil 112. That is, when the combination of the magnetic core members 108a and 108b is the first magnetic core member 108c and the power transmission coil 112 has a substantially concentric shape, they are arranged radially with respect to the center C of the power transmission coil 112. .
  • the magnetic core members 108a and 108b constituting the first magnetic core member 108c are cuboids having substantially the same cross-sectional shape perpendicular to the magnetic flux from the power transmission coil 112, as shown in FIG. Has a shape.
  • the magnetic flux generated in the power transmission coil 112 enters and exits from the inner peripheral side end surface of the magnetic core member 108b and the outer peripheral side end surface of the magnetic core member 108a, and passes through the magnetic core members 108a and 108b.
  • the magnetic flux is concentrated on the inner peripheral side of the power transmission coil 112
  • the magnetic flux is also collected from the side surface to the magnetic core materials 108a and 108b having a low magnetic resistance.
  • a cross-sectional area that is not magnetically saturated is secured. If the innermost cross-sectional area of the magnetic core material 108a, 108b is minimized and the cross-sectional area is equal to or greater in the other portions, the magnetic flux density is reduced and magnetic saturation does not occur.
  • the magnetic core members 108a and 108b are formed of substantially the same rectangular parallelepiped as described above and a plurality of such combinations 108c are arranged radially, two magnetic core members adjacent in the arc direction are used. Since a relatively large gap is formed between the magnetic layers 108b and the magnetic flux passing through the gaps increases and spreads three-dimensionally, the magnetic core member 108b is a single unit so as to fill each gap.
  • the member 108d is disposed on the coil base 106 (see FIG. 14). In other words, the second magnetic core member 108d having a shorter overall length than the first magnetic core member 108c is disposed next to the first magnetic core member 108c.
  • Magnetic flux can be collected by the second magnetic core member 108d arranged in this way, and it is possible to prevent problems such as an increase in loss in the nearby metal part due to the spread of the magnetic flux and a reduction in the self-inductance of the coil. it can.
  • the magnetic core 108 is disposed under the power transmission coil 112.
  • the magnetic core 108 is not a single flat plate, but includes a relatively small first magnetic core 108c and second magnetic core 108d. Accordingly, when viewed from the first magnetic core member 108c and the second magnetic core member 108d alone, they are resistant to vibrations, external impacts, and load as compared with the flat magnetic cores. It becomes possible to reduce that 108a, 108b is cracked or chipped.
  • the magnetic core members 108a and 108b are arranged so as to spread on a plane parallel to the installation surface, the load is frequently applied in the vertical direction, and the stress is transferred to the seam by being separated from the magnetic core members 108a and 108b.
  • the magnetic core member 108d has a short length in the direction perpendicular to the weight, and thus the resistance is increased.
  • the power supply device 100 includes the magnetic core 108
  • the power receiving device 200 has a symmetrical structure with the power feeding device 100, so that the magnetic core 108 can be incorporated into the power receiving device 200.
  • the first magnetic core member 108c is composed of a combination of two members, ie, the magnetic core member 108a and the magnetic core member 108b.
  • the present invention is not limited to this, and the first magnetic core member 108c may be composed of one member as long as the first magnetic core member 108c is longer than the second magnetic core member 108d.
  • the non-contact power feeding device can reduce overheating of electronic components, it is suitable for charging electric propulsion vehicles, for example.
  • 100 contactless power supply device 102 bottom plate, 104 heat conduction member, 106 coil base, 108 magnetic core, 108a, 108b magnetic core member, 118c first magnetic core member, 118d second magnetic core member, 110 mica plate, 112 power transmission coil, 114 cover, 114a first upper wall, 114b second upper wall, 114c side wall, 116 electronic component group, 118 partition wall, 120 coil holder, 122 shield member, 124 partition wall, 126 heat insulating member, 126a through hole, 130,132 lead wire, 134 bush, 200 power receiving device, 400 Electric propulsion vehicle, S Non-contact power supply system.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

L'invention concerne une bobine utilisée dans un système d'alimentation électrique sans contact qui, sans faire contact, envoie le courant électrique à un récepteur de courant (200) à partir d'un dispositif d'alimentation de courant (100). La bobine comprend : une bobine de transmission de courant (112) qui génèrent un champ électromagnétique; et un noyau magnétique (108c) qui est placé à proximité de la bobine précitée. Le noyau magnétique (108c) comprend au moins deux éléments magnétiques (108a, 108b) qui sont disposés successivement dans un sens longitudinal au flux magnétique généré par la bobine de transmission de courant (112).
PCT/JP2011/001899 2010-12-27 2011-03-30 Bobine utilisée dans un système d'alimentation électrique sans contact Ceased WO2012090342A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2010289373A JP2014043115A (ja) 2010-12-27 2010-12-27 非接触給電システムに用いられるコイルユニット
JP2010289372A JP2014043114A (ja) 2010-12-27 2010-12-27 非接触給電システムに用いられるコイルユニット
JP2010-289372 2010-12-27
JP2010-289373 2010-12-27

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WO2013125372A1 (fr) * 2012-02-20 2013-08-29 住友電気工業株式会社 Unité de bobine et système d'alimentation électrique sans contact
WO2014192816A1 (fr) * 2013-05-28 2014-12-04 矢崎総業株式会社 Unité bobine d'alimentation en courant
WO2014192817A1 (fr) * 2013-05-28 2014-12-04 矢崎総業株式会社 Unité bobine d'alimentation en courant
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
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JP2016115788A (ja) * 2014-12-15 2016-06-23 トヨタ自動車株式会社 コイルユニット
WO2017009135A1 (fr) * 2015-07-13 2017-01-19 Bayerische Motoren Werke Aktiengesellschaft Unité de bobine pour le transfert d'énergie par induction
EP3467855A3 (fr) * 2017-10-09 2019-05-15 Zollner Elektronik AG Module électrique dans le boîtier de différents matériaux
EP3567617A1 (fr) * 2018-05-09 2019-11-13 Zollner Elektronik AG Dispositif d'induction pour charger des véhicules automobiles
EP3567618A1 (fr) * 2018-05-09 2019-11-13 Zollner Elektronik AG Dispositif d'induction pour charger des véhicules automobiles
EP3567616A1 (fr) * 2018-05-09 2019-11-13 Zollner Elektronik AG Dispositif d'induction pour charger des véhicules automobiles
WO2021175887A1 (fr) * 2020-03-05 2021-09-10 Mahle International Gmbh Dispositif de charge à induction stationnaire pour transfert d'énergie sans fil
CN114312398A (zh) * 2020-09-30 2022-04-12 马勒国际有限公司 冷却装置和电磁感应充电装置

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JP2013172503A (ja) * 2012-02-20 2013-09-02 Sumitomo Electric Ind Ltd コイルユニット及び非接触給電システム
WO2013125372A1 (fr) * 2012-02-20 2013-08-29 住友電気工業株式会社 Unité de bobine et système d'alimentation électrique sans contact
WO2014192816A1 (fr) * 2013-05-28 2014-12-04 矢崎総業株式会社 Unité bobine d'alimentation en courant
WO2014192817A1 (fr) * 2013-05-28 2014-12-04 矢崎総業株式会社 Unité bobine d'alimentation en courant
JP2014232754A (ja) * 2013-05-28 2014-12-11 矢崎総業株式会社 給電コイルユニット
JP2014233107A (ja) * 2013-05-28 2014-12-11 矢崎総業株式会社 給電コイルユニット
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
JP2015153890A (ja) * 2014-02-14 2015-08-24 矢崎総業株式会社 受電ユニット及びそれを有する給電システム
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WO2017009135A1 (fr) * 2015-07-13 2017-01-19 Bayerische Motoren Werke Aktiengesellschaft Unité de bobine pour le transfert d'énergie par induction
CN105048653A (zh) * 2015-09-06 2015-11-11 哈尔滨工业大学 一种用于电动汽车无线供电的工口交替型磁耦合机构及其实现方法
CN105048653B (zh) * 2015-09-06 2017-08-25 哈尔滨工业大学 一种用于电动汽车无线供电的工口交替型磁耦合机构及其实现方法
EP3467855A3 (fr) * 2017-10-09 2019-05-15 Zollner Elektronik AG Module électrique dans le boîtier de différents matériaux
EP3567617A1 (fr) * 2018-05-09 2019-11-13 Zollner Elektronik AG Dispositif d'induction pour charger des véhicules automobiles
EP3567618A1 (fr) * 2018-05-09 2019-11-13 Zollner Elektronik AG Dispositif d'induction pour charger des véhicules automobiles
EP3567616A1 (fr) * 2018-05-09 2019-11-13 Zollner Elektronik AG Dispositif d'induction pour charger des véhicules automobiles
WO2021175887A1 (fr) * 2020-03-05 2021-09-10 Mahle International Gmbh Dispositif de charge à induction stationnaire pour transfert d'énergie sans fil
CN115427254A (zh) * 2020-03-05 2022-12-02 马勒国际有限公司 用于无线能量传输的固定式感应充电装置
CN115427254B (zh) * 2020-03-05 2023-07-28 马勒国际有限公司 用于无线能量传输的固定式感应充电装置
US11820245B2 (en) 2020-03-05 2023-11-21 Mahle International Gmbh Stationary induction charging device for wireless energy transfer
CN114312398A (zh) * 2020-09-30 2022-04-12 马勒国际有限公司 冷却装置和电磁感应充电装置
US12035512B2 (en) 2020-09-30 2024-07-09 Mahle International Gmbh Cooling device and electromagnetic induction charging device

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