CN107275044A - Coil unit, wireless power supply, wireless receiving device and Contactless power transmission device - Google Patents

Coil unit, wireless power supply, wireless receiving device and Contactless power transmission device Download PDF

Info

Publication number
CN107275044A
CN107275044A CN201710203178.XA CN201710203178A CN107275044A CN 107275044 A CN107275044 A CN 107275044A CN 201710203178 A CN201710203178 A CN 201710203178A CN 107275044 A CN107275044 A CN 107275044A
Authority
CN
China
Prior art keywords
coil
sensor
coil unit
space
power
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.)
Granted
Application number
CN201710203178.XA
Other languages
Chinese (zh)
Other versions
CN107275044B (en
Inventor
村重拓也
大西正秀
菅泽昌之
小林正幸
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.)
TDK Corp
Original Assignee
TDK Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TDK Corp filed Critical TDK Corp
Publication of CN107275044A publication Critical patent/CN107275044A/en
Application granted granted Critical
Publication of CN107275044B publication Critical patent/CN107275044B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/022—Encapsulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

Ensure the load resistance of coil unit the present invention relates to a kind of, and when applying external stress, suppression stress is transferred to the coil unit for the sensor being arranged inside coil unit.The coil unit is arranged at ground side, possesses：Coil, detection are present at least one sensor of the object over or around of coil unit and accommodate the housing of coil and sensor, and housing has：The dividing plate for separating the sensor space for accommodating the coil space of coil and the vertical direction positioned at coil space and accommodating sensor and at least one pillar for the inner space for keeping sensor space, sensor are non-contiguously configured in sensor with the top inner surface portion in space with housing on dividing plate.

Description

Coil unit, wireless power supply, wireless receiving device and wireless power transmission Device
Technical field
The present invention relates to a kind of coil unit, wireless power supply, wireless receiving device and Contactless power transmission device.
Background technology
Propose electric power via magnetic field from the power coil unit being arranged on the parking stall that can be stopped to being arranged at The electricity reception coil unit supply of vehicle side, is thus charged when vehicle is parked in parking stall to the battery being equipped in vehicle The electric power supply system of radio-type.
In the electric power supply system of the radio-type, in order to detect that the metallic foreign body for being possible to affected by magnetic fields is mixed into Between power coil unit and electricity reception coil unit, the exploitation for the power coil unit for being equipped with sensor have studied.
However, power coil unit is due to being arranged on the road surface on parking stall, upper power coil list is opened accordingly, there exist vehicle The problem of external stress easily puts on built-in part when first, so as to energetically enter to exercise the resistance to load of power coil unit The research that lotus performance is improved.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2014-75899 publications
The content of the invention
The technical problems to be solved by the invention
A kind of non-contact type electric supply installation is proposed in patent document 1, wherein, will power supply in contactless power supply device The stepped construction being made up of multiple resin plates is made in the lid of the protective housing in portion, using general synthetic resin, can possess Requirement to environmental protection, the requirement to electrical characteristics, load resistance requirement.In the contactless power supply device, metal detection coil warp The upper of the lid for the coil main body for accommodating power supply is installed on by the film-form binding material constituted with soft synthetic resin material Between layer resin plate and the resin plate of lower floor.
However, the outside of the impact applied in the technology disclosed in patent document 1 when vehicle is opened or load etc. should Power is disperseed by the lid of resinous stepped construction, but the external stress deposited after distribution is still transferred to enclosure interior Part the problem of.Especially for the metal detection coil for the outer surface side for being arranged at power supply, there is the problem significantly to occur The problem of.
Therefore, the present invention is formed in view of the above problems, its object is to ensure the load resistance of coil unit, and Stress is transferred to the sensor being arranged inside coil unit when suppressing to apply external stress.
Coil unit involved in the present invention is disposed on the coil unit of ground side, possesses：Coil, detection are present in line At least one sensor of the object over or around of coil unit and the housing for accommodating coil and sensor, housing have：Separate Accommodate coil coil space and vertical direction positioned at coil space and accommodate sensor sensor space every At least one pillar of the inner space in plate and holding sensor space, sensor is in sensor space on dividing plate Non-contiguously configured with the top inner surface portion of housing.
According to the present invention, housing, which has, separates the coil space for accommodating coil and the vertical direction positioned at coil space And the dividing plate for accommodating the sensor space of sensor and at least one pillar for the inner space for keeping sensor space, Sensor is non-contiguously configured in sensor with the top inner surface portion in space with housing on dividing plate.Therefore, sensor is used Space turns into the structure supported by pillar, thereby it can be assured that the load resistance of coil unit.In addition, in sensor space In, ensure there is gap between inner surface portion and sensor that the housing of upside is opened in vehicle, therefore, it can suppress vehicle when opening Impact or the external stress of load etc. be transferred directly to sensor.Thereby it can be assured that the load resistance of coil unit, and Stress is transferred to the sensor being arranged inside coil unit when can suppress to apply external stress.
In addition, in coil unit involved in the present invention, sensor can be metal detection coil.Thus, it is possible to anti- The only breakage of the sensor inside coil unit, and can be with the metallic foreign body over or around of detection coil unit.
It is preferred that sensor has in the hole of vertical direction insertion, and pillar can be with the hole of insertion sensor in vertical direction Extension.In this case, the load applied on the housing around sensor can be supported by pillar, keeps sensor space Sensor around inner space.
It is preferred that coil unit can have multiple sensors.In such a case it is possible to which expanding can be detected using sensor The region of object.
It is preferred that housing can have multiple pillars.In this case, due to the part of load that applies on support housing into For some, it therefore, it can scattered external stress.
It is preferred that housing can have the protuberance extended from dividing plate to vertical lower in coil space.In the situation Under, load resistance can be improved relative to the external stress applied on housing.
More preferably protuberance is in hollow tubular.In such a case it is possible to set the small of electronic unit etc. in hollow space Type part, can effectively utilize space.
It is preferred that coil can be wound in the way of inner peripheral is contacted with protuberance.In this case, due to coil and protrusion Portion contact, therefore, area of dissipation increase, from coil produce heat via problem effectively to external cooling.It is thus possible to improve The thermal diffusivity of coil unit.
In addition, in coil unit involved in the present invention, coil is the powered line of confession that alternating current is carried out via magnetic field Circle.Thus, it is possible to prevent the breakage of the sensor inside coil unit, and the confession of electric power can be carried out by electricity.
Wireless power supply involved in the present invention is disposed on the wireless power supply of ground side, and with above-mentioned line Coil unit.According to the present invention it is possible to obtain ensure that the load resistance of coil unit, and answered when inhibiting application external stress Power is transferred to the wireless power supply for the sensor being arranged inside coil unit.
Wireless receiving device involved in the present invention is disposed on the wireless receiving device of ground side, and with above-mentioned line Coil unit.According to the present invention it is possible to obtain ensure that the load resistance of coil unit, and answered when inhibiting application external stress Power is transferred to the wireless receiving device for the sensor being arranged inside coil unit.
Contactless power transmission device involved in the present invention, which possesses, to be arranged at the wireless power supply of ground side and is equipped on The wireless receiving device of vehicle, wireless power supply is above-mentioned wireless power supply.According to the present invention it is possible to obtain ensure that line The load resistance of coil unit, and stress is transferred to the sensor being arranged inside coil unit when inhibiting application external stress Contactless power transmission device.
Contactless power transmission device involved in the present invention, which possesses, to be equipped on the wireless power supply of vehicle and is arranged at ground The wireless receiving device of surface side, wireless receiving device is above-mentioned wireless receiving device.According to the present invention it is possible to obtain ensure that line The load resistance of coil unit, and stress is transferred to the sensor being arranged inside coil unit when inhibiting application external stress Contactless power transmission device.
Contactless power transmission device involved in the present invention possess the vehicle side for being equipped on vehicle supply unit and with The supply unit of the wireless powered ground side of confession for carrying out electric power between the supply unit of vehicle side, the supply unit tool of ground side There is above-mentioned coil unit.According to the present invention it is possible to obtain ensure that the load resistance of coil unit, and inhibit application outside Stress is transferred to the Contactless power transmission device of the two-way type for the sensor being arranged inside coil unit during stress.
The effect of invention
According to the present invention it is possible to ensure the load resistance of coil unit, and stress when can suppress to apply external stress It is transferred to the sensor being arranged inside coil unit.
Brief description of the drawings
Fig. 1 is to represent the Contactless power transmission device involved by the first embodiment of the present invention and electric storage means in the lump Skeleton diagram.
Fig. 2 is to represent the power coil unit in the Contactless power transmission device involved by the first embodiment of the present invention Schematic isometric.
Fig. 3 is the schematic cross-section stereogram along the power coil unit of the I-I in Fig. 2.
Fig. 4 is the power coil and power coil space from the power coil unit in vertical direction enlarged representation Fig. 2 Schematic isometric.
Fig. 5 is from the sensor of power coil unit in vertical direction enlarged representation Fig. 2 and showing for sensor space Meaning stereogram.
Fig. 6 is comparable to the confession involved by the first embodiment from the vertical direction enlarged representation present invention shown in Fig. 5 The sensor of coil unit and the schematic isometric in sensor space, from the second of the vertical direction enlarged representation present invention The sensor of power coil unit involved by embodiment and the schematic isometric in sensor space.
Fig. 7 is comparable to the confession involved by the first embodiment from the vertical direction enlarged representation present invention shown in Fig. 5 The sensor of coil unit and the schematic isometric in sensor space, from the 3rd of the vertical direction enlarged representation present invention the The sensor of power coil unit involved by embodiment and the schematic isometric in sensor space.
Fig. 8 is comparable to the confession involved by the first embodiment from the vertical direction enlarged representation present invention shown in Fig. 5 The sensor of coil unit and the schematic isometric in sensor space, from the 4th of the vertical direction enlarged representation present invention the The sensor of power coil unit involved by embodiment and the schematic isometric in sensor space.
Fig. 9 is comparable to the confession involved by the first embodiment from the vertical direction enlarged representation present invention shown in Fig. 5 The sensor of coil unit and the schematic isometric in sensor space, from the 5th of the vertical direction enlarged representation present invention the The sensor of power coil unit involved by embodiment and the schematic isometric in sensor space.
Figure 10 is the Contactless power transmission device involved by the 6th embodiment from the vertical lower enlarged representation present invention In power coil unit power coil and the schematic isometric in power coil space.
Figure 11 is the schematic section of the power coil unit involved by the 6th embodiment of the present invention.
Figure 12 is the Contactless power transmission device involved by the 7th embodiment from the vertical lower enlarged representation present invention In power coil unit power coil and the schematic isometric in power coil space.
Figure 13 is the Contactless power transmission device involved by the 8th embodiment from the vertical lower enlarged representation present invention In power coil unit power coil and the schematic isometric in power coil space.
Figure 14 is to represent the Contactless power transmission device involved by the 9th embodiment of the present invention in the lump with electric storage means Skeleton diagram.
Figure 15 is comparable to the schematic section of the power coil unit involved by the first embodiment of the invention shown in Fig. 3 Face stereogram, the signal of the electricity reception coil unit in Contactless power transmission device involved by the 9th embodiment of the invention Cross-sectional perspective view.
Figure 16 is to represent the Contactless power transmission device involved by the tenth embodiment of the present invention in the lump with electric storage means Skeleton diagram.
Figure 17 is comparable to the schematic section of the power coil unit involved by the first embodiment of the invention shown in Fig. 3 Face stereogram, the ground side coil unit in Contactless power transmission device involved by the tenth embodiment of the invention shows Meaning cross-sectional perspective view.
Figure 18 is another from the sensor of vertical direction enlarged representation power coil unit and sensor space Schematic isometric.
The explanation of symbol：
S1, S2, S3 ... Contactless power transmission device；100th, 101 ... wireless power supplies；200th, 201 ... is wireless by Denso Put；210 ... housings；220 ... magnetic shielding materials；230 ... rectifiers；240 ... chargers；250th, 251,252,260,261 ... store Electrical equipment；270 ... source power supplies；The supply unit of 300 ... ground sides；310 ... the 1st electric power converters；The power supply of 400 ... vehicle sides Device；410 ... the 2nd electric power converters；INV, INV2 ... inverter；L1, L3 ... power coil unit；L11 ... power coils； L2, L4 ... electricity reception coil unit；L12 ... electricity reception coils；L5 ... ground side coil units；L51 ... ground lateral coil；L6 ... vehicles Side line coil unit；L61 ... vehicle lateral coils；500 ... ground lateral coil space；VG ... power supplys；600 ... housings；610 ... tops Portion；620 ... dividing plates；630 ... bottoms；640 ... side surface parts；650 ... pillars；660 ... protuberances；700 ... power coil spaces； 720 ... magnetics；800 ... sensor spaces；810 ... sensors；900 ... electricity reception coil spaces.
Embodiment
Hereinafter, the present invention is illustrated based on embodiment shown in the drawings.In addition, in explanation, for same key element or Key element with same function uses same symbol, and the repetitive description thereof will be omitted.In addition, the position relationship waited up and down is Relative, it is not particularly limited, may be reversed up and down, but coming up and down based on accompanying drawing in the following description Illustrate.Further, the dimension scale of accompanying drawing is not limited to the ratio of diagram.In addition, following embodiment is to be used for Illustrate the illustration of the present invention, the present invention is not limited to the embodiment.Furthermore it is possible to which following described inscape is fitted Work as combination.
(first embodiment)
First, reference picture 1, says to the Contactless power transmission device S1 involved by the first embodiment of the present invention It is bright.Fig. 1 is the outline for representing the Contactless power transmission device involved by the first embodiment of the present invention and electric storage means in the lump Figure.
As shown in figure 1, Contactless power transmission device S1 possesses wireless power supply 100 and wireless receiving device 200.At this In embodiment, illustrated using by the example of the Contactless power transmission device S1 equipment for being applied to power to vehicle.That is, nothing Line electric supply installation 100 turns into the power supply unit for being arranged at ground, and wireless receiving device 200, which turns into, is equipped on being set by electricity for vehicle It is standby.As the vehicle for having used wireless receiving device 200, electric automobile or the mixing for the electric power for utilizing secondary cell can be enumerated The various vehicles such as power vehicle.
Wireless power supply 100 has power supply VG, inverter INV and power coil unit L1.Power supply VG carries direct current Supply inverter INV described later.As power supply VG, as long as the power supply of output direct current is just not particularly limited, Ke Yilie Lift by commercial ac power source rectification, it is smooth after dc source；The dc source that secondary cell, solar power generation are obtained；Or Switching current device of switch converters etc. etc..
Inverter INV has the function by alternating current is converted to by the power supply VG input dc powers supplied.It is used as inverter INV, the on-off circuit for having multiple switch element by bridge joint is constituted., for example can be with as the switch element for constituting the on-off circuit Enumerate MOS-FET (metal-oxide semiconductor (MOS)-field-effect transistor (Metal Oxide Semiconductor-Field Effect Transistor)) or IGBT (igbt (Insulated Gate Bipolar )) etc. Transistor element.
Power coil unit L1 contains power coil L11 and constituted, and is packaged by housing 600.The supply lines Circle L11 plays the work as the wireless power transmission of the alternating current that will be supplied by inverter INV to electricity reception coil L12 described later power supply With.In addition, in the case of the equipment for being applied to power to vehicles such as electric automobiles by wireless current transmission device S1, supply lines Coil unit L1 is configured at underground or Near Ground.In addition, power coil unit L1 concrete structure is described in detail below.
Wireless receiving device 200 has electricity reception coil unit L2, rectifier 230 and charger 240.
Electricity reception coil unit L2 has electricity reception coil L12 and magnetic shielding material 220, and these are packaged by housing 210. Here, electricity reception coil L12 is played as receiving by the alternating current of the power coil L11 wireless power transmissions of wireless power supply 100 The effect of power receiving section.In addition, in the feelings of equipment for being applied to power to vehicles such as electric automobiles by wireless current transmission device S1 Under condition, electricity reception coil unit L2 is equipped on the lower vehicle of electric automobile.As electricity reception coil L12, it can enumerate and connect wire The coil of continuous winding, plate stamping is formed as by coiled type by stamping machine obtained from coil, the material by fine strip shape Coil etc. obtained from being bent to coiled type.It is leading in the case that Wire-wound is constituted as electricity reception coil L12 The material of line, can enumerate copper, silver, gold, aluminium or contain these as the metal wire of constituent.Go out from light-weighted viewpoint Hair, can use aluminum steel, copper-clad aluminum conductor etc..From the viewpoint of lightweight and electrical conductivity is taken into account, preferably around aluminum steel The copper-clad aluminum conductor of even ground coated copper.Copper-clad aluminum conductor can be used as by many stranded litz wires.In addition, conduct Electricity reception coil L12 is formed in the case of plate stamping is formed as into coiled type by stamping machine or by the material bending of fine strip shape The material of the material of sheet material or fine strip shape in the case of for coiled type, can enumerate copper, silver, gold, aluminium or make containing these Alloy for constituent etc..
Magnetic shielding material 220, which has to exclude or reduce, supplies the magnetic field produced during by electricity to acting on that surrounding or vehicle are leaked. Specifically, the magnetic field produced during by power coil L11 and electricity reception coil L12 for by electricity, on the surface of magnetic shielding material 220 Produce vortex flow.The direction that the magnetic field produced by the vortex flow when for by electricity is eliminated is produced on magnetic shielding material 220 Magnetic field, excludes or reduces the feelings that power coil L11 and electricity reception coil L12 supplies the magnetic field produced during by electricity to be leaked to surrounding or vehicle Condition.Magnetic shielding material 220 is configured at electricity reception coil L12 rear side, i.e. vehicle side in electricity reception coil unit L2.It is used as magnetic cup The material of material 220 is covered, copper, silver, gold, aluminium can be enumerated or contain these as alloy of constituent etc..Particularly from Pay attention to from the viewpoint of cost, less expensive and small metallic resistance aluminium can be used.In addition, electricity reception coil unit L2 can also Possesses the magnetic improved for the combination between electricity reception coil between electricity reception coil L12 and magnetic shielding material 220.
Rectifier 230 has the function that the AC rectification for receiving electricity reception coil L12 is direct current.It is used as rectifier 230, there is the bridge circuit of the half-wave rectifying circuit or full-wave rectifying circuit of multiple switch element etc. by bridge joint and electric with the bridge type The smoothing capacity device that road connects and the voltage after rectification is smoothly generated into DC voltage side by side is constituted.
Charger 240 will be charged by the direct current after the rectification of rectifier 230 to electric storage means 250.Specifically, charger 240 are made up of the charging control circuit of the charging of control electric storage means 250, and conversion passes through the direct current after the rectification of rectifier 230 Electric current and voltage, supply and store to electric storage means 250 action of electric energy.As long as work(of the electric storage means 250 with storage electric power Can just be not particularly limited, such as can enumerate secondary cell (lithium ion battery, lithium polymer battery, Ni-MH battery) or Capacity cell (double layer capacitor etc.), from the viewpoint of energy density is high, preferably lithium ion battery.In addition, charger 240 are not essential composition, can also be used as the structure that the direct current exported by rectifier 230 is supplied directly to electric storage means 250 Into.
By possessing such composition, it is possible to achieve the power coil L11 from wireless power supply 100 is wirelessly by electric power It is transferred to the electricity reception coil L12 of wireless receiving device 200 Contactless power transmission device S1.
Then, reference picture 2~5, in the Contactless power transmission device S1 involved by the first embodiment of the present invention Power coil unit L1 structure is illustrated.Fig. 2 is to represent that the wireless power involved by the first embodiment of the present invention is passed The schematic isometric of power coil unit in defeated device.Fig. 3 is the schematic section along the power coil unit of the I-I in Fig. 2 Face stereogram.Fig. 4 is the power coil and power coil space from the power coil unit in vertical direction enlarged representation Fig. 2 Schematic isometric.Fig. 5 is the sensor and sensor space from the power coil unit in vertical direction enlarged representation Fig. 2 Schematic isometric.
As shown in Figures 2 and 3, power coil unit L1 has housing 600, magnetic 720, power coil L11 and sensing Device 810.The power coil unit L1 is with wirelessly by power transmission to power side.
As shown in Fig. 2 housing 600 is in the profile of cuboid.As the material of housing 600, the tree of insulating properties can be enumerated Fat, can enumerate acrylonitrile butadient styrene (ABS), polyethylene terephthalate resin (PET), polyphenyl Sulfide resin (PPS), fibre reinforced plastics (FRP) etc..In addition, housing 600 can also be made up of a variety of parts and material.Especially It is situation about being leaked for the magnetic field produced when excluding or reduce confession by electricity to surrounding or vehicle, can also be by the one of housing 600 Partly the material of (such as bottom 630 of housing 600) is set as copper, silver, gold, aluminium or contains these as constituent Metal etc..From the viewpoint of cost is paid attention to, less expensive and small metallic resistance aluminium can be used.In addition, housing 600 is set Be placed in ground, but it is also possible between housing 600 and ground intervention have the insulation insulant of sheet material or resin etc., silicon thermally conductive sheet or Thermal conductivity epoxy adhesive or the thermal conductivity Heat Conduction Material for improving thermal diffusivity such as pressure sensitive adhesive double coated, by insulant or Heat Conduction Material it is overlapping and Into 2 Rotating fields part.In addition, in the present embodiment, the outer shape of housing 600 is in rectangular shape, but is not limited , can also be variously-shaped in circular cone shape, truncated pyramid shape, polygon prism shape, anti-prism shape, domed shape etc. in this.
In the present embodiment, housing 600 accommodates magnetic 720, power coil L11 and sensor 810.It is specific next Say, separate the power coil for accommodating magnetic 720 and power coil L11 as shown in figure 3, housing 600 has with space 700 and hold Receive sensor 810 sensor space 800 dividing plate 620.Sensor is located at power coil hanging down with space 700 with space 800 Straight top.That is, sensor space 800 is located at the electric power biography for being powered coil unit L1 compared to power coil space 700 Defeated side.In addition, housing 600 sensor with space 800 have pillar 650.
As shown in Figure 3 and Figure 4, power coil space 700 is the space of rectangular shape.Specifically, power coil It is the space divided by the bottom 630 of housing 600, side surface part 640, dividing plate 620 with space 700.It is empty in the power coil Between space configuration in 700 have power coil L11 and magnetic 720.In addition, power coil space in the present embodiment 700 spatial form is in rectangular shape, but is not limited to this, can also be in circular cone shape, truncated pyramid shape, polygon prism Shape, anti-prism shape, domed shape etc. are variously-shaped.
As shown in Figure 3 and Figure 5, sensor space 800 is the space of rectangular shape.Specifically, sensor is empty Between 800 be by the top 610 of housing 600, side surface part 640, dividing plate 620 divide space.In the sensor with space 800 Space in be provided with pillar 650, and be configured with sensor 810.In addition, sensor space 800 in the present embodiment Spatial form be in rectangular shape, but be not limited to this, can also be in circular cone shape, truncated pyramid shape, multi-edge column-shaped Shape, anti-prism shape, domed shape etc. are variously-shaped.
Pillar 650 plays a part of keeping the inner space in sensor space 800.Specifically, as shown in figure 5, branch Post 650 is the columned post extended from dividing plate 620 to vertical direction in sensor space 800.Thus, it is possible to suppress by The inner space deformation in sensor space 800 caused by the load applied on housing 600.That is, sensor space 800 As the structure supported by pillar 650.Here, the structure in sensor space 800 is supported by then passing through pillar 650, because This, can be thinned the thickness at the top (vehicle of housing 600 opens the outer wall section of upside) of housing 600.Thus, sensor 810 Approached with the interval of the object as detection object, it is thus possible to improve the sensitivity of sensor 810.On the other hand, logical The thickness at the top 610 of over-subtraction thin walled shell 600 and in the case of causing power coil unit L1 load resistance not enough, pass through and increase The thick power coil thickness of the dividing plate 620 between space 700 and sensor space, can maintain sensor 810 and conduct Detect the interval of the object of object and maintain or improve power coil unit L1 load resistance.That is, in order to improve sensor 810 sensitivity and the load resistance for ensuring power coil unit L1, compared with the thickness at the top 610 of the housing 600 The thickness of the dividing plate 620 of housing 600 is thickened, the thickness at the top 610 of housing 600 can be set as desired by being able to ensure that The thickness of the sensitivity of sensor 810.In addition, the cylindrical outer shape of pillar 650, but do not limit in the present embodiment , can also be variously-shaped in circular cone shape, truncated pyramid shape, polygon prism shape, anti-prism shape etc. in this.In addition, at this Embodiment B-C post 650 is set by positioned at sensor in the way of the approximate centre in space 800, but is not limited to this, also may be used To be arranged at arbitrary place.But, in order to improve load resistance, preferably pillar 650 and the side surface part 640 of housing 600 away from From as maximum configuration, that is, it is configured at center.Further, the end of the vertical direction of pillar 650 exists in the present embodiment Contacted in sensor space 800 with the top 610 of housing 600, as long as but the inside in sensor space 800 can be kept Space, can also set gap between the end of the vertical direction of pillar 650 and the top of housing 600 610.
As shown in figure 4, magnetic 720 is always seen from Vertical Square in generally square flat profile, in supply lines Circle is placed on the bottom 630 of housing 600 with space 700.That is, magnetic 720 is placed in power coil with space 700 Carry out being powered in the inner surface portion of the opposite side of coil unit L1 power transmission side for housing 600.The magnetic 720 has There is the magnetic resistance of reduction magnetic circuit, and improve the magnetic-coupled effect between coil.As the material of magnetic 720, iron can be enumerated Sial, MnZn ferrites, permalloy etc..The permeability and resistance of magnetic 720 are more high more preferred, in these, particularly preferably MnZn ferrites.In addition, the outer shape from the vertical direction of magnetic 720 is in substantially square in the present embodiment Shape, but be not limited to this, can also be rectangle, polygon, circle, ellipse etc. it is variously-shaped.In addition, in present embodiment Middle magnetic 720 is constituted as a part, but is not limited to this, can also be made up of the individual piece of multiple magnetic parts.Should The individual plate shape of magnetic part can also be variously-shaped combination.Further, the insulant of insulation sheet material or resin etc. also may be used With between the bottom 630 between magnetic 720 and power coil with the housing 600 in space 700.
Power coil L11 will be transmitted to electricity reception coil L12 by the inverter INV AC electrical powers supplied.Specifically, lead to Cross by inverter INV and alternating voltage is put on into power coil L11, alternating current circulates generation exchange in power coil L11 Magnetic field, via the AC magnetic field power transmission to electricity reception coil L12.As shown in figure 4, power coil L11 is used in power coil In space 700 on the bottom 630 of housing 600 by magnetic 720 it is mediate set.That is, power coil L11 is in supply lines Will in being powered in the inner surface portion of the opposite side of coil unit L1 power transmission side for housing 600 in circle space 700 Magnetic 720 is set mediately.In addition, power coil L11 is continuously to wind wire and constitute in the present embodiment , but be not limited to this or plate stamping is formed as, by fine strip shape by the coil of coiled type by stamping machine Material bending is formed as coil of coiled type etc..In addition, the coil-type continuously wound as wire, can enumerate spiral shell Spin line circle, electromagnet coil or coil that they are combined etc..Further, as by stamping machine by plate stamping shape Tabular coil as coiled type and the material bending of fine strip shape is formed as coiled type coil coil-type, can enumerate Spiral winding or these coils combined etc..In the present embodiment, power coil L11 be by wire planely Continuously wind and constitute, power coil space 700 is arranged at the almost parallel mode of vertical direction to wind direction of principal axis In.In addition, power coil L11 always sees the profile of circular in shape from Vertical Square in the present embodiment, but it is not limited to This, can also be rectangle, the various outer shape such as polygon, ellipse.Further, power supply is constituted as by Wire-wound Lead material in the case of coil L11, can enumerate copper, silver, gold, aluminium or contain these as the metal of constituent Line.From the viewpoint of lightweight, aluminum steel, copper-clad aluminum conductor etc. can be used.From the viewpoint of lightweight and electrical conductivity is taken into account, It is preferred that copper to be equably coated on to the copper-clad aluminum conductor around aluminum steel.Copper-clad aluminum conductor can be as stranded by many Litz wire is used.On the other hand, it is in the case of plate stamping is formed as into coiled type by stamping machine as power coil L11 Or sheet material and the material of the material of fine strip shape in the case that the material bending of fine strip shape is formed as into coiled type, it can enumerate Copper, silver, gold, aluminium or contain these as alloy of constituent etc..Here, power coil L11 and magnetic 720 it Between can also set and play a part of power coil L11 being wound in coil core and be fixed, and/or by power coil L11 The skeleton (not illustrating) for the effect insulated with magnetic 720., can as the resin of the material of the skeleton, preferably insulating properties To enumerate acrylonitrile butadient styrene (ABS), polyethylene terephthalate resin (PET), polyphenylene sulfide Resin (PPS), fibre reinforced plastics (FRP) etc..
Sensor 810 detects the object over or around for being present in power coil unit L1.Specifically, sensor The living body detection sensor of 810 organisms that can be enumerated around detection power coil unit L1, detection are equipped with wireless The vehicle of current-collecting device 200 prevents the position-detection sensor offset for powered position, detection metallic foreign body to be mixed into power supply Metal detection coil between coil unit L1 and electricity reception coil unit L2 etc..Moreover, the information detected by sensor 810 The various devices such as vehicle, power supply VG, inverter INV are transferred to, electricity can be carried out according to power coil unit L1 peripheral situation Power is transmitted.In the present embodiment, sensor 810 is metal detection coil, is made up of the coil of ring-type.That is, as sensor 810 metal detection coil is with the hollow coil in the hole of vertical direction insertion.Here, to the gold as sensor 810 The function of category detection coil is described in detail.Metal detection Coil Detector metallic foreign body be mixed into power coil unit L1 and by Between coil unit L2.Specifically, detected by metal detection coil by being mixed into power coil unit L1 and by electric wire Metallic foreign body between coil unit L2 and the change of the increase and decrease of magnetic flux produced.Moreover, being mixed into metallic foreign body by supply lines When the scope of the influence in the magnetic field that coil unit L1 is produced, the electric signal gone out according to metal detection Coil Detector is alerted at once Or promote power supply to stop.In addition, in the present embodiment, metal detection coil is made up of the coil of ring-type, can but as long as being Detect metallic foreign body, material, shape be not particularly limited or be made up of printed coil coil, wire connected The coil of helical structure is wound into continuously, plate stamping is formed as to the coil of coiled type by stamping machine.But, from cost Viewpoint is set out, and is preferably able to manufacture multiple coils and the fast printed coil of speed of production in same substrate.In addition, in sensing Device 810 is by the case that printed coil is constituted, the substrate that can also will print the conductive pattern that form printed coil is used as dividing plate 620。
In the present embodiment, sensor 810 is arranged on the dividing plate 620 of housing 600 in sensor with space 800. As long as the allocation position of the sensor 810 sensor with the dividing plate 620 of housing 600, can be configured in space 800 appoint The position of meaning.In addition, sensor 810 is in top inner surface portion of the sensor in space 800 on dividing plate 620 with housing 600 (inner surface portion at the top 610 of housing 600) is non-contiguously configured.That is, in sensor with space 800, in the He of sensor 810 Ensure there is gap between the top 610 of housing 600.In other words, in sensor with space 800, in sensor 810 and vehicle Ensure there is gap between the inner surface portion for the housing 600 for opening upside.By there is the gap, when directly transmission vehicle is not opened Impact or load etc. external stress, stress can be suppressed and transmitted to sensor 810.Here, gap is being arranged at into pillar In the case of between the end of 650 vertical direction and the top 610 of housing 600, the end of the vertical direction of pillar 650 and shell Gap between the top 610 of body 600 is preferably smaller than the setting with gap between sensor 810 and the top 610 of housing 600. Further, sensor 810 is preferably non-contiguously configured in sensor with the side surface part 640 in space 800 with housing 600.At this In the case of, it can further suppress stress and be delivered to sensor 810.In addition, the profile of sensor 810 in the present embodiment Shape coil annular in shape, but this is not limited to, can also be in variously-shaped.
As described previously for the Contactless power transmission device S1 involved by present embodiment, in power coil unit L1 Housing 600 has：The power coil for accommodating power coil L11 is separated into space 700 and positioned at power coil space 700 Vertical direction and the sensor dividing plate 620 in space 800 and the inside in holding sensor space 800 for accommodating sensor 810 The pillar 650 of at least one in space, sensor 810 is in top of the sensor in space 800 on dividing plate 620 with housing 600 Inner surface portion is non-contiguously configured.Therefore, sensor space 800 turns into the structure supported by pillar 650, therefore, it can Ensure power coil unit L1 load resistance.In addition, opening the housing 600 of upside in vehicle with space 800 in sensor Ensure there is gap between inner surface portion and sensor 810, therefore, it can suppress the outside of impact or load of the vehicle when opening etc. Stress is transferred directly to sensor 810.Thereby it can be assured that power coil unit L1 load resistance, and can suppress to apply Plus stress is transferred to the sensor 810 being arranged inside power coil unit L1 during external stress.
(second embodiment)
Then, reference picture 6, are illustrated to the Contactless power transmission device involved by second embodiment of the present invention. Fig. 6 is comparable to the power coil list involved by the first embodiment from the vertical direction enlarged representation present invention shown in Fig. 5 The sensor of member and the schematic isometric in sensor space, from vertical direction enlarged representation second embodiment of the present invention The sensor of involved power coil unit and the schematic isometric in sensor space.Nothing involved by second embodiment The sensor shape of sensor 810 in space 800 and the side of configuration of the line power transmission device in power coil unit L1 Face is different from first embodiment, and others constitute identical with the Contactless power transmission device S1 involved by first embodiment. Hereinafter, illustrated centered on the aspect different from first embodiment.
As shown in fig. 6, in the present embodiment, sensor 810 has in the hole of vertical direction insertion.In addition, sensor 810 are configured in the way of the hole extension of the insertion sensor 810 of pillar 650.That is, pillar 650 sensor with space 800 by every The hole of the insertion sensor 810 of plate 620 extends in vertical direction.Therefore, because sensor 810 is with playing holding sensor space The pillar 650 of the effect of 800 inner space is close, therefore, it can keep around the sensor 810 in sensor space 800 Inner space.By the holding of the inner space, so as to more will not directly transmit impact or the load when vehicle is opened etc. External stress, can further suppress stress and be transferred to sensor 810.Further, sensor 810 does not preferably connect with pillar 650 Contact to earth configuration.In this case, can further suppress stress is transferred to sensor 810.In addition, sensor in the present embodiment 810 coils annular in shape, but this is not limited to, can also be in variously-shaped.In situation of the sensor 810 for the coil of ring-type Under, the hole of sensor 810 is natively present, accordingly it is also possible to effectively utilize the space in sensor space 800.
As described above, on the Contactless power transmission device involved by present embodiment, being passed in power coil unit L1 Sensor 810 has in the hole of vertical direction insertion, and the hole of the insertion sensor 810 of pillar 650 extends in vertical direction.Therefore, may be used To keep the inner space around the sensor 810 in sensor space 800.By the holding of the inner space, so that less The external stress of impact or the load when vehicle is held etc. is directly transmitted in meeting, can further be suppressed stress and is transferred to sensor 810。
(the 3rd embodiment)
Then, reference picture 7, are illustrated to the Contactless power transmission device involved by third embodiment of the present invention. Fig. 7 is comparable to the power coil list involved by the first embodiment from the vertical direction enlarged representation present invention shown in Fig. 5 The sensor of member and the schematic isometric in sensor space, from vertical direction enlarged representation third embodiment of the present invention The sensor of involved power coil unit and the schematic isometric in sensor space.For involved by the 3rd embodiment Contactless power transmission device, in power coil unit L1 have multiple sensor 810 in terms of with first embodiment not Together, other compositions are identical with the Contactless power transmission device S1 involved by first embodiment.Hereinafter, with the first embodiment party Illustrated centered on the different aspect of formula.
As shown in fig. 7, in the present embodiment, power coil unit L1 has multiple sensors 810.The plurality of sensor As long as 810 position can be configured at arbitrary position in sensor space 800 on the dividing plate 620 of housing 600.With tool The situation for having 1 sensor 810 is compared, in the case of with multiple sensors 810, and the region that sensor 810 is present is relative Become big in the ratio of housing 600.It therefore, it can expand the region for being capable of detection object using sensor 810.In addition, such as second Described in embodiment, as shown in fig. 7, can be with the arbitrary sensor 810 in the multiple sensors 810 of the insertion of pillar 650 The mode in hole is configured.In the present embodiment, multiple sensors 810 are in respectively in the ring-type in the hole of vertical direction insertion Coil, it is total 5 by 4 sensors for being configured to 1 sensor of the through hole of pillar 650 and being configured at around pillar 650 Sensor is constituted.These multiple sensors 810 are configured separately of each other on dividing plate 620.Here, being metal in sensor 810 In the case of detection coil, preferably by the sensing to be paved with the way of covering the region of the flux link of power coil L11 generations Device 810 is constituted.Thus, it is possible to which the region of metallic foreign body can not be detected by reducing, it can positively detect and be mixed into power coil list Metallic foreign body between first L1 and electricity reception coil unit L2.
As described previously for the Contactless power transmission device involved by present embodiment, have in power coil unit L1 There are multiple sensors 810.Therefore, compared with there is 1 sensor 810, there are multiple sensors 810 Under, the region that sensor 810 is present becomes big relative to the ratio of housing 600.I.e., it is possible to which expanding can be examined using sensor 810 Survey the region of object.
(the 4th embodiment)
Then, reference picture 8, are illustrated to the Contactless power transmission device involved by the 4th embodiment of the present invention. Fig. 8 is comparable to the power coil list involved by the first embodiment from the vertical direction enlarged representation present invention shown in Fig. 5 The sensor of member and the schematic isometric in sensor space, from the 4th embodiment of the vertical direction enlarged representation present invention The sensor of involved power coil unit and the schematic isometric in sensor space.For involved by the 4th embodiment Contactless power transmission device, in power coil unit L1 housing 600 have multiple pillar 650 in terms of with the first embodiment party Formula is different, and others constitute identical with the Contactless power transmission device S1 involved by first embodiment.Hereinafter, with it is first real Apply and illustrate centered on the different aspect of mode.
As shown in figure 8, in the present embodiment, in power coil unit L1, housing 600 has multiple pillars 650.It is logical Housing 600 is crossed with multiple pillars 650, supporting the place of the load applied on housing 600 turns into multiple places, therefore, it can Scattered external stress.It therefore, it can further ensure that power coil unit L1 load resistance.In addition, the position of multiple pillars 650 Putting can be in sensor with being configured at arbitrary position in space 800.Especially for load resistance is improved, it is preferably set to many Individual pillar 650 is equal with the distance of the side surface part 640 of housing 600 and as maximum configuration.In addition, multiple pillars 650 can To be set as mutually different size, the size being mutually identical can also be set as.In the present embodiment, multiple pillars 650 In, sensor is maximum with the size of the pillar 650 in space 600 positioned at approximate centre.In such a case it is possible to positively ensure It is most susceptible to the load resistance of the central portion of the housing 600 of the influence of the deformation caused by load.
As described previously for the Contactless power transmission device involved by present embodiment, in power coil unit L1, shell Body 600 has multiple pillars 650.Therefore, because the place of the load applied on support housing 600 turns into multiple places, therefore, External stress can be disperseed.
(the 5th embodiment)
Then, reference picture 9, are illustrated to the Contactless power transmission device involved by the 5th embodiment of the present invention. Fig. 9 is comparable to the power coil list involved by the first embodiment from the vertical direction enlarged representation present invention shown in Fig. 5 The sensor of member and the schematic isometric in sensor space, from the 5th embodiment of the vertical direction enlarged representation present invention The sensor of involved power coil unit and the schematic isometric in sensor space.Nothing involved by 5th embodiment Line power transmission device in power coil unit L1 have multiple sensor 810 in terms of, housing 600 have multiple pillars 650 aspect is different from first embodiment, and others are constituted and the Contactless power transmission device involved by first embodiment S1 is identical.Hereinafter, illustrated centered on the aspect different from first embodiment.
As shown in figure 9, in the present embodiment, power coil unit L1 has multiple sensors 810, housing 600 has Multiple pillars 650.It is capable of the region of detection object using sensor 810 thus, it is possible to expand, and may further ensure that confession Coil unit L1 load resistance.The position of the plurality of sensor 810 and the position of multiple pillars 650 can be in sensors With being configured at arbitrary position in space 800.
In the present embodiment, multiple sensors 810 in respectively the hole of vertical direction insertion ring-type coil, it is multiple The hole of the difference multiple sensors 810 of insertion of pillar 650 extends in vertical direction.In addition, though diagram is eliminated, but multiple biographies Sensor 810 is not necessarily required to be configured to the hole of each sensor 810 of the insertion of pillar 650, can also include and be configured to the insertion of pillar 650 The sensor 810 and pillar 650 in hole not through hole sensor 810 both.In addition, multiple sensors 810 and multiple pillars 650 Quantity need not be identical quantity, detection zone and load resistance that can be based on object be appropriately configured.
As described above, the Contactless power transmission device involved by present embodiment in power coil unit L1 have it is multiple Sensor 810.Therefore, compared with there is 1 sensor 810, in the case of with multiple sensors 810, sensing The region that device 810 is present becomes big relative to the ratio of housing 600.It is capable of detection object using sensor 810 i.e., it is possible to expand Region.
In addition, the Contactless power transmission device involved by present embodiment is in power coil unit L1, housing 600 has Multiple pillars 650.Therefore, because the place of the load applied on support housing 600 turns into multiple places, it therefore, it can disperse External stress.
(the 6th embodiment)
Then, reference picture 10 and Figure 11, enter to the Contactless power transmission device involved by the 6th embodiment of the present invention Row explanation.Figure 10 is from the Contactless power transmission device involved by the 6th embodiment of the vertical lower enlarged representation present invention Power coil unit power coil and the schematic isometric in power coil space.Figure 11 is the 6th embodiment party of the present invention The schematic section of power coil unit involved by formula.Contactless power transmission device involved by 6th embodiment is in power supply Housing 600 has the aspect of protuberance 660 different from first embodiment in coil unit L1, and others are constituted to be implemented with first Contactless power transmission device S1 involved by mode is identical.Hereinafter, carried out centered on the aspect different from first embodiment Explanation.
As shown in Figure 10 and Figure 11, in the present embodiment, housing 600 power coil with space 700 have from every The protuberance 660 that plate 620 extends to vertical lower.Thus, in the part that protuberance 660 is connected with dividing plate 620, can by every The thickness of plate 620 increases the height component of protuberance 660.That is, for the external stress applied on housing 600, it will can support The thickness of the dividing plate 620 of load from pillar 650 increases the height component of protuberance 660.It is thus possible to improve power coil Unit L1 load resistance.In the present embodiment, protuberance 660 is extended in the way of insertion power coil L11 hollow portion. In other words, power coil L11 axle coiled electrical conductors centered on protuberance 660.In addition, protuberance is in circle in the present embodiment The outer shape of column, but this is not limited to, can also be in circular cone shape, truncated pyramid shape, polygon prism shape, anti-prism Shape etc. is variously-shaped.Further, in the present embodiment, protuberance 660 with positioned at power coil with space 700 substantially in The mode of the heart is set, but is not limited to this, can also be arranged at arbitrary position.But, in order to improve load resistance, preferably Protuberance 660 and the distance of the side surface part 640 of housing 600 turn into maximum configuration, that is, are configured at center.Further, in this reality Apply in mode, power coil with space 700 protuberance 660 vertical lower end and magnetic 720 between set Gap.If from the viewpoint of resistance to load, the more high resistance to load of projecting height of preferred protuberance 660 is higher, can also structure As the opening for setting protuberance to be capable of insertion on magnetic 720, the opening of the insertion magnetic 720 of protuberance 660 and extension.This When, if the structure in the way of the end of the vertical lower of protuberance 660 to be contacted with the bottom 630 of housing 660, can press down The external stress of impact or load when vehicle processed is opened etc. is transferred directly to magnetic 720.It therefore, it can further ensure that confession Coil unit L1 load resistance.
As described previously for the Contactless power transmission device involved by present embodiment, in power coil unit L1, shell Body 600 has the protuberance 660 extended from dividing plate 620 to vertical lower in power coil space 700.Therefore, for shell The external stress applied on body 600, can will support the thickness of the dividing plate 620 of the load from pillar 650 increases protuberance 660 Height component, power coil unit L1 load resistance can be improved.
(the 7th embodiment)
Then, reference picture 12, are illustrated to the Contactless power transmission device involved by the 7th embodiment of the present invention. Figure 12 is from the power supply in the Contactless power transmission device involved by the 7th embodiment of the vertical lower enlarged representation present invention The power coil of coil unit and the schematic isometric in power coil space.Wireless power involved by 7th embodiment is passed Defeated device is different from the 6th embodiment in terms of the shape of the protuberance 660 of housing 600 in power coil unit, other Composition it is identical with the 6th embodiment.Hereinafter, the aspect different from the 6th embodiment is illustrated as center.
As shown in figure 12, in the present embodiment, protuberance 660 is in hollow tubular.Thus, it is possible to by electronic unit etc. Small parts (not illustrating) be arranged at the hollow space of protuberance 660, can be effectively in power coil space 700 Utilization space.For example, the small parts of electronic unit etc. are installed on dividing plate 620 in the hollow centre of protuberance 660.At this Also with the 6th embodiment it is equally possible that being configured to set protuberance 660 to pass through on magnetic 720 in embodiment Logical opening, the opening extension of the insertion magnetic 720 of protuberance 660.Now, the small parts of electronic unit etc. can be in protrusion It is installed in the hollow space in portion 660 on dividing plate 620, can also be located at a part for the small parts of electronic unit etc. and protruded The mode of the hollow space in portion 660 is installed on the bottom 630 of housing 600.Furthermore it is possible to be configured to the vertical of protuberance 660 The end of lower section is contacted with the bottom 630 of housing 600, can also be configured in the end of the vertical lower of protuberance 660 and shell There is gap between the bottom 630 of body 600.Between the end of the vertical lower of protuberance 660 and the bottom of housing 600 630 In the case of with gap, the processing of the distribution of the small parts of the electronic unit of the hollow space of protuberance 660 etc. is arranged at Become easy.
As described previously for the Contactless power transmission device involved by present embodiment, in power coil unit L1, dash forward Go out portion 660 in hollow tubular.It therefore, it can the small parts of electronic unit etc. being arranged at hollow space, can be effectively Utilization space.
(the 8th embodiment)
Then, reference picture 13, are illustrated to the Contactless power transmission device involved by the 8th embodiment of the present invention. Figure 13 is from the power supply in the Contactless power transmission device involved by the 8th embodiment of the vertical lower enlarged representation present invention The power coil of coil unit and the schematic isometric in power coil space.Wireless power involved by 8th embodiment is passed Defeated device is different from the 6th embodiment in terms of power coil L11 structure in power coil unit, others constitute with 6th embodiment is identical.Hereinafter, the aspect different from the 6th embodiment is illustrated as center.
As shown in figure 13, in the present embodiment, power coil L11 is supplied using protuberance 660 as central shaft coiled electrical conductor Electric coil L11 inner peripheral is contacted with protuberance 660 and is wound.That is, the most wire of inner side positioned at power coil L11 is with dashing forward Go out portion 660 to contact.Thus, area of dissipation increases, and the heat produced during power transmission by power coil L11 can be via housing 600 Effectively to external cooling.It is thus possible to improve power coil unit L1 thermal diffusivity.
As described above, the Contactless power transmission device involved by present embodiment is in power coil unit L1, supply lines Its inner peripheral of circle L11 is contacted and wound with protuberance 660.Thus, area of dissipation increases, the heat produced by power coil L11 Can be via housing 600 effectively to external cooling.It is thus possible to improve power coil unit L1 thermal diffusivity.
(the 9th embodiment)
Then, reference picture 14 and Figure 15, to the Contactless power transmission device S2 involved by the 9th embodiment of the present invention Illustrate.Figure 14 is to represent the Contactless power transmission device involved by the 9th embodiment of the present invention in the lump with electric storage means Skeleton diagram.Figure 15 is comparable to the signal of the power coil unit involved by the first embodiment of the invention shown in Fig. 3 Cross-sectional perspective view, the electricity reception coil unit in Contactless power transmission device involved by the 9th embodiment of the invention shows Meaning cross-sectional perspective view.
As shown in figure 14, Contactless power transmission device S2 possesses wireless power supply 101 and wireless receiving device 201. In present embodiment, illustrated using the example that Contactless power transmission device S2 is applied to the power supply unit from vehicle. That is, wireless power supply 101 turns into the power supply unit being equipped on vehicle, and wireless receiving device 201, which turns into, is arranged at ground Power receiving equipment.In Contactless power transmission device S2 involved by 9th embodiment, it will be arranged at ground in first embodiment The electricity reception coil unit for being equipped on vehicle side in the power coil unit L1 of surface side power coil L11 and first embodiment Opposite structure is made in L2 electricity reception coil L12.Hereinafter, the aspect different from first embodiment is said as center It is bright.
Wireless power supply 101 has inverter INV2 and power coil unit L3.Inverter INV2 is with being equipped on vehicle On electric storage means 251 connect, the input dc power provided by electric storage means 251 is converted into alternating current.Inverter INV2 and The inverter INV of one embodiment is identical, and the on-off circuit for having multiple switch element by bridge joint is constituted, electric as the switch is constituted The switch element on road, the element such as can enumerate MOS-FET or IGBT.As long as work(of the electric storage means 251 with storage electric power Can just be not particularly limited, such as can enumerate secondary cell (lithium ion battery, lithium polymer battery, Ni-MH battery) or Volume element (double layer capacitor etc.), from the viewpoint of energy density is high, preferably lithium ion battery.
Power coil unit L3 has power coil L11 and magnetic shielding material 220, and these are packaged by housing 210. The power coil unit L3 with power coil L11 in addition to replacing electricity reception coil, with first embodiment by electric wire Coil unit L2 is identical structure.I.e., in the present embodiment, power coil unit L3 is equipped under the vehicle of electric automobile Portion, power coil L11 will be transmitted to electricity reception coil L12 by the inverter INV2 AC electrical powers supplied.
Wireless receiving device 201 has electricity reception coil unit L4, rectifier 230 and charger 240.Rectifier 230, charging Device 240 is arranged at ground, be in addition with first embodiment identical structure, therefore, omit the description.
As shown in figure 15, electricity reception coil unit L4 has housing 600, magnetic 720, electricity reception coil L12 and sensor 810.The electricity reception coil unit L4 is except replacing power coil L11 with electricity reception coil L12, and housing 600 has receiving Magnetic 720 and electricity reception coil L12 electricity reception coil replace power coil with beyond space 700 with space 900, are and first The power coil unit L1 identical structures of embodiment.I.e., in the present embodiment, electricity reception coil unit L4 is arranged at ground Side, electricity reception coil space 900 is the space divided by the bottom 630 of housing 600, side surface part 640, dividing plate 620, by electric wire Enclose L12 on the bottom 630 of housing 600 by magnetic 720 it is mediate set, electricity reception coil L12 by power coil L11 without Line receives the alternating current that power transmission is obtained.
By possessing such composition, it is possible to achieve wirelessly passed electric power by the power coil L11 of wireless power supply 101 Transport to the electricity reception coil L12 of wireless receiving device 201 Contactless power transmission device S2, the alternating current that electricity reception coil L12 is received It is direct current with the rectification of rectifier 230, the direct current charges to the electric storage means 260 for being arranged at ground side by charger 240. I.e., in the present embodiment, from vehicle side, earthward side carries out power transmission.As long as work(of the electric storage means 260 with storage electric power Can just be not particularly limited, such as can enumerate secondary cell (lithium ion battery, lithium polymer battery, Ni-MH battery) or Volume element (double layer capacitor etc.).
As described previously for the Contactless power transmission device S2 involved by present embodiment, in electricity reception coil L4, housing 600 have：The electricity reception coil for accommodating electricity reception coil L12 is separated into space 900 and positioned at the vertical of electricity reception coil space 900 Top and the sensor dividing plate 620 in space 800 and the inner space in holding sensor space 800 for accommodating sensor 810 At least one pillar 650, sensor 810 is in top inner surface portion of the sensor in space 800 on dividing plate with housing 600 Non-contiguously configure.Therefore, because sensor space 800 turns into the structure supported by pillar 650, thereby it can be assured that Electricity reception coil unit L4 load resistance.In addition, opening the interior table of the housing 600 of upside in vehicle with space 800 in sensor Ensure there is gap between face and sensor 810, therefore, it can suppress the external stress of impact or load of the vehicle when opening etc. It is transferred directly to sensor 810.Thereby it can be assured that electricity reception coil unit L4 load resistance, and can suppress to be applied with Stress is transferred to the sensor 810 being arranged inside electricity reception coil unit L4 during external stress.
(the tenth embodiment)
Then, reference picture 16 and Figure 17, to the Contactless power transmission device S3 involved by the tenth embodiment of the present invention Illustrate.Figure 16 is to represent the Contactless power transmission device involved by the tenth embodiment of the present invention in the lump with electric storage means Skeleton diagram.Figure 17 is comparable to the signal of the power coil unit involved by the first embodiment of the invention shown in Fig. 3 Cross-sectional perspective view, the ground side coil unit in Contactless power transmission device involved by the tenth embodiment of the invention Schematic cross-section stereogram.
As shown in figure 16, Contactless power transmission device S3 possesses the supply unit 300 of ground side and the power supply dress of vehicle side Put 400.In the present embodiment, the supply unit 300 of ground side is arranged at ground, and the supply unit 400 of vehicle side is equipped on On vehicle, the wireless confession for carrying out electric power is by electricity between the supply unit 300 of ground side and the supply unit 400 of vehicle side.With Under, the aspect different from first embodiment is illustrated as center.
The supply unit 300 of ground side has the 1st electric power converter 310 and ground side coil unit L5.1st electrical power conversion Device 310 is the on-off circuit of two-way type.1st electric power converter 310 has：1st mode of operation, it is connected with source power supply, will The alternating current supplied by source power supply is converted to power transmission alternating current, and earthward side line coil unit L5 is exported；With the 2nd mode of operation, It is connected with being arranged at the electric storage means of ground side, will be converted to charging direct current by the ground side coil unit L5 alternating currents supplied Electricity is exported to electric storage means 261.In addition, in the 1st mode of operation, can also replace source power supply and with being arranged at the storage of ground side Electrical equipment 261 connects the mode of operation that the direct current supplied by electric storage means 261 is converted to power transmission alternating current.
As shown in figure 17, ground side coil unit L5 has housing 600, magnetic 720, ground lateral coil L51 and sensing Device 810.The ground side coil unit L5 is except replacing power coil L11 with ground lateral coil L51, and housing 600 has Have accommodate magnetic 720 and ground lateral coil L51 ground lateral coil with space 500 come instead of power coil space 700 with Outside, it is power coil unit L1 identical structures with first embodiment.I.e., in the present embodiment, ground lateral coil list First L5 is arranged at ground side, and ground lateral coil space 500 is by the bottom 630 of housing 600, side surface part 640, dividing plate 620 The space of division.
Ground lateral coil L51 has：It is used as the wireless power transmission of alternating current that will be supplied by the 1st electric power converter 310 to vehicle The work(of the function of lateral coil L61 power supply and power receiving section as the alternating current by vehicle lateral coil L61 wireless receiving power transmissions Energy.Specifically, when wirelessly by alternating current power transmission, by the way that alternating voltage is applied into ground side by the 1st electric power converter 310 Coil L51, so that alternating current produces AC magnetic field in ground lateral coil L51 circulations, via the AC magnetic field power transmission extremely Vehicle lateral coil L61.On the other hand, in wireless receiving alternating current, AC magnetic field is produced by receiving vehicle lateral coil L61, AC electromotive force is produced in the lateral coil L51 of ground, the alternating current based on the AC electromotive force flows in the lateral coil L51 of ground It is logical.That is, ground lateral coil L51 is the powered coil of confession that alternating current is carried out via magnetic field.Ground lateral coil L51 and supply lines Circle L11 similarly in ground lateral coil space 500 on the bottom 630 of housing 600 by magnetic 720 it is mediate set Put.That is, ground lateral coil L51 is in ground lateral coil with the electricity for carrying out ground side coil unit L5 in space 500 in housing 600 In the inner surface portion of the opposite side of power transmission equipment side by magnetic 720 it is mediate set.
Wire can continuously be wound and constituted or by stamping machine by plate stamping shape by ground lateral coil L51 Coil as coiled type or the material bending of fine strip shape is formed as to coil of coiled type etc..In addition, being used as wire The coil-type continuously wound, can enumerate spiral winding, electromagnet coil or coil that they are combined Deng.Further, as the tabular coil and the material bending by fine strip shape that plate stamping is formed as to coiled type by stamping machine Be formed as the coil-type of the coil of coiled type, spiral winding or these coils combined etc. can be enumerated.Enter one Step, ground lateral coil L51 be by wire the plane continuous winding in ground and in the case of constituting, can be to wind direction of principal axis with hanging down Nogata is arranged at ground lateral coil space 500 to almost parallel mode, and always being seen from Vertical Square can be with rounded, rectangular The various outer shape such as shape, polygon, ellipse.In addition, in the case of as Wire-wound is constituted into ground lateral coil L51 Lead material, copper, silver, gold, aluminium can be enumerated or contain these as the metal wire of constituent.Seen from light-weighted Point sets out, and can use aluminum steel, copper-clad aluminum conductor etc..From the viewpoint of lightweight and electrical conductivity is taken into account, preferably by copper equably It is coated on the copper-clad aluminum conductor around aluminum steel.Copper-clad aluminum conductor can be used as by many stranded litz wires.Separately On the one hand, it is in the case of plate stamping is formed as into coiled type by stamping machine or by fine strip shape as ground lateral coil L51 Material bending be formed as coiled type in the case of sheet material and fine strip shape material material, can enumerate copper, silver, gold, aluminium, Or contain these as alloy of constituent etc..Here, can also be set between ground lateral coil L51 and magnetic 720 Put and play a part of ground lateral coil L51 being wound in coil core and be fixed, and/or by ground lateral coil L51 and magnetic The skeleton (not illustrating) for the effect that body 720 insulate.As the resin of the material of the skeleton, preferably insulating properties, it can enumerate Acrylonitrile butadient styrene (ABS), polyethylene terephthalate resin (PET), polyphenylene sulfide (PPS), fibre reinforced plastics (FRP) etc..
The supply unit 400 of vehicle side has vehicle side coil unit L6 and the 2nd electric power converter 410.
Vehicle side coil unit L6 has vehicle lateral coil L61 and magnetic shielding material 220, these by housing 210 by Encapsulation.The vehicle side coil unit L6 is and first is real in addition to electricity reception coil L12 is replaced with vehicle lateral coil L61 The electricity reception coil unit L2 identicals for applying mode are constituted.I.e., in the present embodiment, vehicle side coil unit L6 is equipped on vehicle Bottom.
Vehicle lateral coil L61 is with the wireless power transmission of alternating current that will be supplied by the 2nd electric power converter 410 to ground lateral coil The function of L51 function and alternating current by ground lateral coil L51 wireless receiving power transmissions.Specifically, wirelessly by alternating current During power transmission, by the way that alternating voltage is applied into vehicle lateral coil L61 by the 2nd electric power converter 410, so that alternating current is in vehicle Lateral coil L61 circulations produce AC magnetic field, via the AC magnetic field power transmission to ground lateral coil L51.On the other hand, in nothing When line is by alternating current power transmission, by receiving the AC magnetic field of ground lateral coil L51 generations, friendship is produced in vehicle lateral coil L61 Electromotive force is flowed, the alternating current based on the AC electromotive force circulates in vehicle lateral coil L61.That is, vehicle lateral coil L61 be through The powered coil of confession of alternating current is carried out by magnetic field.As vehicle lateral coil L61, it can enumerate continuously wind wire Coil, plate stamping is formed as by coiled type by stamping machine obtained from coil, the material bending of fine strip shape is formed as into line Coil obtained from round etc.., can be with as the material that Wire-wound is constituted to the wire in the case of vehicle lateral coil L61 Enumerate copper, silver, gold, aluminium or contain these as the metal wire of constituent.From the viewpoint of lightweight, aluminium can be used Line, copper-clad aluminum conductor etc..From the viewpoint of lightweight and electrical conductivity is taken into account, preferably equably coated copper is formed around aluminum steel Copper-clad aluminum conductor.Copper-clad aluminum conductor can be used as by many stranded litz wires.In addition, being used as vehicle lateral coil L61 It is to be formed as coiled type in the case of plate stamping is formed as into coiled type by stamping machine or by the material bending of fine strip shape In the case of sheet material or fine strip shape material material, copper, silver, gold, aluminium can be enumerated or contain these as constituent Alloy etc..
2nd electric power converter 410 is the on-off circuit of two-way type.2nd electric power converter 410 has：Will be by vehicle side line The alternating current of circle L61 supplies is converted to the 1st mode of operation that charging direct current is exported to the electric storage means 252 for being equipped on vehicle； Exported with the direct current supplied from the electric storage means 252 for being equipped on vehicle is converted into power transmission alternating current to vehicle lateral coil L61 The 2nd mode of operation.As the electric storage means 252 for being equipped on vehicle, secondary cell (lithium ion battery, lighium polymer can be enumerated Battery, Ni-MH battery etc.) or volume element (double layer capacitor etc.).
By possessing such composition, it is possible to achieve in the supply unit 300 and the supply unit 400 of vehicle side of ground side Between the wireless powered Contactless power transmission device S3 of confession for carrying out electric power.
As described previously for the Contactless power transmission device S3 involved by present embodiment, in ground side coil unit L5 In, housing 600 has：Separate the ground lateral coil for accommodating ground lateral coil L51 with space 500 and empty positioned at ground lateral coil Between 500 vertical direction and accommodate the sensor of sensor 810 with the dividing plate 620 in space 800 and keep sensor space At least one pillar 650 of 800 inner space, sensor 810 sensor with space 800 on dividing plate 620 with housing 600 top inner surface portion is non-contiguously configured.Therefore, because sensor space 800 turns into the knot supported by pillar 650 Structure, thereby it can be assured that ground side coil unit L5 load resistance.In addition, in sensor with space 800, due in car Ensure there is gap between the inner surface portion and sensor 810 of housing 600 when opening, when therefore, it can to suppress vehicle to open Impact or the external stress of load etc. be transferred directly to sensor 810.Thereby it can be assured that ground side coil unit L5's is resistance to Load, and stress is transferred to the sensing being arranged inside ground side coil unit L5 when can suppress to be applied with external stress Device 810.
Possesses the power supply for the vehicle side for being equipped on vehicle in the Contactless power transmission device S3 involved by present embodiment Device 400 and between the supply unit 400 of vehicle side the wireless powered ground side of confession for carrying out electric power supply unit 300, the supply unit 300 of ground side has ground side coil unit L5, and the ground side coil unit possesses to be carried out via magnetic field The powered coil of confession of alternating current is ground lateral coil L51.It therefore, it can the resistance to load for obtaining ensure that ground side coil unit L5 Lotus property, and stress is transferred to the sensor 810 being arranged inside ground side coil unit L5 when inhibiting application external stress Two-way type Contactless power transmission device S3.
More than, the present invention is illustrated based on embodiment, but the present invention is not limited to above-mentioned embodiment, Ke Yijin Row various modifications or change.
For example, in the 9th embodiment and the tenth embodiment, the structure explanation of sensor 810 and housing 600 be with First embodiment is identical, but is not limited to this, can also use the sensor 810 and housing of the second~the 7th embodiment 600 structure.In addition, the electricity reception coil L12 of the 9th embodiment and the ground lateral coil L51 of the tenth embodiment can also divide Not Shi Yong the 8th embodiment power coil L11 characteristic structural.
Further, the example for being constituted multiple sensors 810 with the coil of ring-type is used to carry out in the 5th embodiment Illustrate, but be not limited to this, can also be constituted with printed coil.Here, reference picture 18, to being constituted multiple pass with printed coil The situation of sensor 810 is illustrated.As shown in figure 18, multiple sensors 810 are that printing forms leading for printed coil on substrate Body pattern and constitute.The printed coil for constituting multiple sensors 810 is formed on substrate with ranks shape, in this example, forms 5 Total 25 printed coil of the row of row 5.Being centrally formed with the hole of vertical direction insertion in each printed coil on the substrate, Multiple difference each holes of insertion of pillar 650 extend in vertical direction.It can also expand in the same manner as the 5th embodiment in this example Can be by the region of the detection object of sensor 810.
Industrial applicability
Power coil unit involved in the present invention can apply to the automatic guided vehicle in addition to electric automobile etc. Moving body.

Claims (14)

1. a kind of coil unit, wherein,
The coil unit is arranged at ground side,
Possess：
Coil；
Detection is present at least one sensor of the object over or around of the coil unit；With
The housing of the coil and the sensor is accommodated,
The housing has：Separate the coil space that accommodates the coil and positioned at the coil space vertical direction simultaneously And accommodate the dividing plate in the sensor space of the sensor；With at least the 1 of the inner space for keeping the sensor space Individual pillar,
The sensor is not contacted in the sensor with the top inner surface portion in space with the housing on the dividing plate Ground is configured.
2. coil unit as claimed in claim 1, wherein,
The sensor is metal detection coil.
3. coil unit as claimed in claim 1 or 2, wherein,
The sensor has in the hole of vertical direction insertion,
The hole of sensor described in the pillar insertion and extend in vertical direction.
4. such as coil unit according to any one of claims 1 to 3, wherein,
The coil unit has multiple sensors.
5. such as coil unit according to any one of claims 1 to 4, wherein,
The housing has multiple pillars.
6. such as coil unit according to any one of claims 1 to 5, wherein,
The housing has the protuberance extended from the dividing plate to vertical lower in the coil space.
7. coil unit as claimed in claim 6, wherein,
The protuberance is in hollow tubular.
8. coil unit as claimed in claims 6 or 7, wherein,
The coil is wound in the way of inner peripheral is contacted with the protuberance.
9. such as coil unit according to any one of claims 1 to 8, wherein,
The coil is the powered coil of confession that alternating current is carried out by magnetic field.
10. a kind of wireless power supply, wherein
The wireless power supply of ground side is disposed on,
With coil unit such as according to any one of claims 1 to 8.
11. a kind of wireless receiving device, wherein,
The wireless receiving device of ground side is disposed on,
With coil unit according to any one of claims 1 to 8.
12. a kind of Contactless power transmission device, wherein,
Possess：The wireless power supply of ground side and the wireless receiving device being equipped in vehicle are arranged at,
The wireless power supply is the wireless power supply described in claim 10.
13. a kind of Contactless power transmission device, wherein,
Possess：The wireless power supply being equipped in vehicle and the wireless receiving device for being arranged at ground side,
The wireless receiving device is the wireless receiving device described in claim 11.
14. a kind of Contactless power transmission device, wherein,
Possess：
The supply unit for the vehicle side being equipped in vehicle；With
The supply unit of the powered ground side of confession of electric power is wirelessly carried out between the supply unit of the vehicle side,
The supply unit of the ground side has the coil unit described in claim 9.
CN201710203178.XA 2016-03-30 2017-03-30 Coil unit, wireless power supply, wireless receiving device and wireless power transmission device Active CN107275044B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2016-067815 2016-03-30
JP2016067815 2016-03-30
JP2017025161A JP6565953B2 (en) 2016-03-30 2017-02-14 Coil unit, wireless power feeding device, wireless power receiving device, and wireless power transmission device
JP2017-025161 2017-02-14

Publications (2)

Publication Number Publication Date
CN107275044A true CN107275044A (en) 2017-10-20
CN107275044B CN107275044B (en) 2019-09-27

Family

ID=60044256

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710203178.XA Active CN107275044B (en) 2016-03-30 2017-03-30 Coil unit, wireless power supply, wireless receiving device and wireless power transmission device

Country Status (2)

Country Link
JP (1) JP6565953B2 (en)
CN (1) CN107275044B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109228899A (en) * 2018-07-27 2019-01-18 联合汽车电子有限公司 Electric automobile energy Transmission system
CN110326067A (en) * 2017-07-05 2019-10-11 株式会社Ihi Coil device
WO2020212335A1 (en) * 2019-04-18 2020-10-22 Tdk Electronics Ag Load transferring element and housing of a stationary part of a wpt system comprising a load transferring element
CN111823892A (en) * 2020-07-21 2020-10-27 长安大学 Automatic switch device for wireless charging coil of electric automobile and control method
CN114312379A (en) * 2020-09-30 2022-04-12 马勒国际有限公司 Ground assembly of induction charging device

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7082785B2 (en) * 2017-10-23 2022-06-09 国立大学法人信州大学 Transmission coil parts for non-contact power supply, their manufacturing method, and non-contact power supply equipment
JP2023041073A (en) 2019-12-27 2023-03-24 Tdk株式会社 Foreign object detection device, power transmission device, power reception device, and power transfer system
CN111769655B (en) 2020-05-19 2022-09-23 华为技术有限公司 Terminal equipment and control method thereof
WO2022144993A1 (en) * 2020-12-28 2022-07-07 Tdk株式会社 Foreign object detection device, power transmission device, power reception device, and power transmission system
DE102022213359A1 (en) 2022-12-09 2024-06-20 Mahle International Gmbh Induction charging device
DE102022213349A1 (en) 2022-12-09 2024-06-20 Mahle International Gmbh Induction charging device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103098344A (en) * 2011-05-27 2013-05-08 日产自动车株式会社 Contactless electricity supply device
CN205725064U (en) * 2016-06-06 2016-11-23 薛寿贞 Wireless charger

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5562797B2 (en) * 2010-10-18 2014-07-30 昭和飛行機工業株式会社 Primary coil arrangement structure of non-contact power feeding device
US9379780B2 (en) * 2010-12-16 2016-06-28 Qualcomm Incorporated Wireless energy transfer and continuous radio station signal coexistence
JP2012222956A (en) * 2011-04-08 2012-11-12 Toyota Motor Corp Vehicle-side coil unit, equipment-side coil unit, and power transmission system
WO2014119285A1 (en) * 2013-01-30 2014-08-07 パナソニック株式会社 Noncontact electric power transmission equipment
JP6148552B2 (en) * 2013-07-02 2017-06-14 矢崎総業株式会社 Coil unit
JP6145934B2 (en) * 2013-07-11 2017-06-14 パナソニックＩｐマネジメント株式会社 Contactless power feeding device and contactless power receiving device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103098344A (en) * 2011-05-27 2013-05-08 日产自动车株式会社 Contactless electricity supply device
CN205725064U (en) * 2016-06-06 2016-11-23 薛寿贞 Wireless charger

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110326067A (en) * 2017-07-05 2019-10-11 株式会社Ihi Coil device
US11322984B2 (en) 2017-07-05 2022-05-03 Ihi Corporation Coil device
CN109228899A (en) * 2018-07-27 2019-01-18 联合汽车电子有限公司 Electric automobile energy Transmission system
CN109228899B (en) * 2018-07-27 2021-06-08 联合汽车电子有限公司 Energy transmission system of electric automobile
WO2020212335A1 (en) * 2019-04-18 2020-10-22 Tdk Electronics Ag Load transferring element and housing of a stationary part of a wpt system comprising a load transferring element
US11955804B2 (en) 2019-04-18 2024-04-09 Tdk Electronics Ag Load transferring element and housing of a stationary part of a WPT system comprising a load transferring element
CN111823892A (en) * 2020-07-21 2020-10-27 长安大学 Automatic switch device for wireless charging coil of electric automobile and control method
CN114312379A (en) * 2020-09-30 2022-04-12 马勒国际有限公司 Ground assembly of induction charging device
CN114312379B (en) * 2020-09-30 2024-07-02 马勒国际有限公司 Ground assembly of induction charging device

Also Published As

Publication number Publication date
CN107275044B (en) 2019-09-27
JP2017188662A (en) 2017-10-12
JP6565953B2 (en) 2019-08-28

Similar Documents

Publication Publication Date Title
CN107275044A (en) Coil unit, wireless power supply, wireless receiving device and Contactless power transmission device
US10374467B2 (en) Coil unit, wireless power feeding device, wireless power receiving device and wireless power transmission device
US20170288465A1 (en) Power feeding coil unit, wireless power feeding device and wireless power transmission device
KR102324342B1 (en) Battery pack with wireless charging and near field communication functions
US8665049B2 (en) Graphene-coated coupling coil for AC resistance reduction
CN106104723B (en) Transformer and the power inverter using the transformer
US20160121732A1 (en) Power transmission device, vehicle equipped with power transmission device, and wireless power transmission system
JP6476713B2 (en) Coil unit for wireless power transmission
CN202695109U (en) Transmitting coil winding structure for rectangular positioning-free wireless charger
KR102325106B1 (en) The structure of the wireless antenna coil for the smart phone
Kreutzer et al. Full SiC DCDC-Converter with a Power Density of more than 100kW/dm3
CN201478847U (en) Wireless charging device
CN103219808A (en) Wireless charger receiver with good compatibility
CN207977198U (en) A kind of electronic transformer
JP6672955B2 (en) Coil unit, wireless power supply device, wireless power receiving device, and wireless power transmission device
KR20160128861A (en) Shielding unit for complex-antenna unit and complex-transmission module comprising the same
CN207458744U (en) A kind of Wireless charging coil and wireless charging system
KR20170128560A (en) Wireless antenna coil for smartphone
KR101693538B1 (en) wireless charging transmission module for car
CN207426815U (en) A kind of wireless energy taking device of mode of resonance
US11462352B2 (en) Electronic component, power supply device, and vehicle
US10084351B2 (en) Power feeding device
CN216389026U (en) Wire winding plate, coil structure and wireless charging device
CN110462971A (en) Wireless power transmission system and chip coil
CN105594096B (en) Non-contact power supply system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant