WO2012102157A1 - Contactless power supply device - Google Patents

Contactless power supply device Download PDF

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Publication number
WO2012102157A1
WO2012102157A1 PCT/JP2012/051021 JP2012051021W WO2012102157A1 WO 2012102157 A1 WO2012102157 A1 WO 2012102157A1 JP 2012051021 W JP2012051021 W JP 2012051021W WO 2012102157 A1 WO2012102157 A1 WO 2012102157A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil
power
charging
power transmission
transmission device
Prior art date
Application number
PCT/JP2012/051021
Other languages
French (fr)
Japanese (ja)
Inventor
真美 鈴木
北村 浩康
恭平 加田
宇宙 松元
Original Assignee
パナソニック 株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニック 株式会社 filed Critical パナソニック 株式会社
Publication of WO2012102157A1 publication Critical patent/WO2012102157A1/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/46Accumulators structurally combined with charging apparatus
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44Methods for charging or discharging
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H02J50/402Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00045Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0044Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Definitions

  • the present invention relates to a contactless power feeding device.
  • Non-contact type power feeding device for example, the one described in Patent Document 1 is known.
  • the secondary battery of the power receiving device is charged by electromagnetic induction between the primary side coil of the power transmitting device and the secondary side coil of the power receiving device.
  • the magnitudes of current values (charging current values) suitable for charging the respective secondary batteries may be different from each other. For this reason, when charging a plurality of types of power receiving devices with one power transmitting device, it is necessary to set the output of the primary side coil to a magnitude corresponding to the charging current value of each power receiving device.
  • the secondary battery of the power receiving device when the secondary battery of the power receiving device is charged by the power transmitting device, it is preferable to supply a current at the resonance frequency to the primary coil in order to increase the charging efficiency.
  • the charging current value varies depending on the state of charge of the secondary battery, for example, in addition to the type of the power receiving device. For this reason, when charging a secondary battery for one power receiving device, in order to secure a charging current for the secondary battery, the frequency of the current of the primary coil is set to be different from the resonance frequency. Need arises. Further, when the charging current value greatly changes with the change in the state of charge, the output of the primary side coil needs to be greatly changed accordingly. For this reason, the degree to which the frequency of the current of the primary coil deviates from the resonance frequency is increased.
  • the present invention provides a non-contact power feeding device that can charge a power receiving device with higher charging efficiency.
  • a non-contact power supply device that applies an alternating magnetic flux from a primary coil provided in a power transmission device to a secondary coil provided in a power reception device is provided in the power transmission device.
  • the power transmission device charges the power reception device with higher charging efficiency by changing the usage pattern of the plurality of primary coils in accordance with the signal received from the power reception device.
  • a non-contact power feeding device that applies an alternating magnetic flux from a primary coil provided in a power transmission device to a secondary coil provided in a power reception device is provided in the power transmission device.
  • a plurality of primary coils electrically connected in parallel; and an operation unit provided in the power transmission device for changing a usage pattern of the plurality of primary coils, the power transmission device includes: The usage form of the plurality of primary side coils is changed in accordance with the operation of the operation unit.
  • the power transmission device charges the power reception device with higher charging efficiency by changing the usage pattern of the plurality of primary coils in accordance with the operation of the operation unit.
  • FIG. 1A is a perspective view showing a schematic structure of the contactless power feeding device of the first embodiment
  • FIG. 1B is a diagram of A in FIG. 1A in a state where a mobile phone is mounted on the power transmission device.
  • Sectional drawing which shows the cross-section along an A line.
  • the circuit diagram which shows the circuit structure of the non-contact-type electric power feeder of 1st Embodiment.
  • the flowchart which shows the procedure of the coil selection control by the non-contact-type electric power feeder of 1st Embodiment.
  • the flowchart which shows the procedure of the coil selection control by the non-contact-type electric power feeder of 1st Embodiment.
  • the time chart which shows one execution example of the coil selection control by the non-contact-type electric power feeder of 1st Embodiment.
  • the flowchart which shows the procedure of the change control at the time of charge by the non-contact-type electric power feeder of 2nd Embodiment.
  • the time chart which shows one execution example of the change control at the time of charge by the non-contact-type electric power feeder of 2nd Embodiment.
  • the flowchart which shows the procedure of the coil selection control by the non-contact-type electric power feeder of 3rd Embodiment.
  • the flowchart which shows the procedure of the coil selection control by the non-contact-type electric power feeder of 4th Embodiment.
  • the flowchart which shows the procedure of the coil selection control by the non-contact-type electric power feeder of 5th Embodiment.
  • the flowchart which shows the procedure of the coil selection control by the non-contact-type electric power feeder of 5th Embodiment.
  • the top view which shows the planar structure of the non-contact-type electric power feeder (power transmission device) as other embodiment.
  • the top view which shows the planar structure of the non-contact-type electric power feeder (power transmission device) as other embodiment.
  • the non-contact power supply device 1 includes a power transmission device 10 that transmits power to various power reception devices.
  • Examples of the power receiving device fed by the power transmitting device 10 include a smartphone, a portable information terminal, a portable audio player, an IC recorder, a digital camera, a digital video camera, a portable game machine, and a notebook in addition to the illustrated mobile phone 20. PC etc. are mentioned.
  • the configuration of the mobile phone 20 will be described.
  • the mobile phone 20 includes a first housing 21 as a main body in which a secondary battery 23 is incorporated, and a second housing 22 attached to the first housing 21 by a hinge. .
  • a secondary coil 40 is provided in the first housing 21 of the mobile phone 20.
  • the secondary coil 40 is provided with a planar coil 41 and a flat yoke 42 that covers the coil 41 from above.
  • the secondary coil 40 is electrically connected to the secondary battery 23 via a circuit board (not shown).
  • the configuration of the power transmission device 10 will be described.
  • the power transmission device 10 includes a primary coil 30 that transmits power to the mobile phone 20, a circuit board 12 that is electrically connected to the primary coil 30, and the power transmission device 10. And a housing 11 to which each element is attached.
  • the housing 11 has a mounting surface 11A on which a power receiving device such as the mobile phone 20 is placed.
  • the primary coil 30 includes a first coil 31 having a minimum diameter, a second coil 32 having a diameter larger than that of the first coil 31, and a third coil 33 having a maximum diameter. And a yoke 34 for accommodating the coils 31 to 33 is provided.
  • the first coil 31, the second coil 32, and the third coil 33 are each formed by winding a conductive wire in the yoke.
  • each of the coils 31 to 33 is formed using a conductive wire having a plurality of litz wires.
  • the first coil 31 is provided on the inner peripheral side of the second coil 32.
  • the second coil 32 is provided on the inner peripheral side of the third coil 33.
  • the center line of the first coil 31, the center line of the second coil 32, and the center line of the third coil 33 are located on the same axis.
  • the heights of the coils 31 to 33 are set to be the same.
  • the distance from the end surface on the side close to the mounting surface 11A in each of the coils 31 to 33 to the mounting surface 11A is set to be the same.
  • the number of turns of the first coil 31 is greater than the number of turns of the second coil 32.
  • the number of turns of the second coil 32 is greater than the number of turns of the third coil 33.
  • the number of litz wires of the first coil 31 is greater than the number of litz wires of the second coil 32.
  • the number of litz wires of the second coil 32 is larger than the number of litz wires of the third coil 33.
  • the yoke 34 includes a central wall 35, an inner wall 36, an intermediate wall 37, an outer wall 38, and a bottom wall 39.
  • the central wall 35 is provided on the inner peripheral side of the first coil 31 in the radial direction of the primary coil 30.
  • the inner wall 36 is provided between the first coil 31 and the second coil 32 in the radial direction of the primary coil 30.
  • the middle wall 37 is provided between the second coil 32 and the third coil 33 in the radial direction of the primary coil 30.
  • the outer wall 38 is provided so as to surround the outer periphery of the third coil 33.
  • the bottom wall 39 is provided between the coils 31 to 33 and the circuit board 12.
  • the central wall 35, the inner wall 36, the middle wall 37, and the outer wall 38 are connected to the bottom wall 39.
  • first to third alternating magnetic fluxes are generated in the first to third coils 31 to 33, respectively.
  • the relationship between the magnitudes of the first to third alternating magnetic fluxes is the relationship of first alternating magnetic flux> second alternating magnetic flux> third alternating magnetic flux.
  • the power transmission device 10 includes a primary circuit 50 that generates alternating power.
  • the primary circuit 50 includes a DC power source E1 as a power source of the power transmission device 10, a full bridge circuit 51, and a control unit 53 that controls the full bridge circuit 51 and the like.
  • the full bridge circuit 51 includes first to fourth switching elements F1 to F4 each formed of a field effect transistor (FET).
  • FET field effect transistor
  • the first to fourth switching elements F1 to F4 are connected to the control unit 53 via first to fourth gate resistors R1 to R4, respectively. Also, first to fourth built-in diodes D1 to D4 are connected in parallel to the first to fourth switching elements F1 to F4, respectively.
  • the full bridge circuit 51 further includes a resonance circuit 52.
  • the resonant circuit 52 generally transfers energy stored as an electric field inside the capacitor and energy stored as a magnetic field inside the coil between the capacitor and the coil.
  • the primary circuit 30 including the first to third coils 31 to 33 is provided in the resonance circuit 52. Alternating power is supplied to the primary coil 30 via the switching elements F1 to F4. Capacitors C1 to C3 are connected in parallel to the first to third coils 31 to 33, respectively.
  • the resonance circuit 52 includes a first switch S1 that switches supply and cut-off of power to the first coil 31, a second switch S2 that switches supply and cut-off of power to the second coil 32, and a third switch And a third switch S3 for switching between supply and interruption of power to the coil 33.
  • the mobile phone 20 as a power receiving device is provided with a secondary circuit 60 that converts alternating power into DC power.
  • the secondary circuit 60 includes a secondary coil 40 that receives the magnetic flux generated by the primary coil 30, a full-wave rectifier circuit 61 that converts alternating power from the secondary coil 40 into DC power, and a secondary battery. 23, and a control unit 62 that detects the state of charge.
  • the secondary side circuit 60 includes a capacitor C4 for matching impedance between the primary side circuit 50 and the secondary side circuit 60, and a capacitor C5 for smoothing DC power from the full-wave rectifier circuit 61. Including.
  • the full-wave rectifier circuit 61 includes fifth to eighth diodes D5 to D8.
  • a capacitor C5 is connected in parallel to the input terminal P1 and the output terminal P2 of the full-wave rectifier circuit 61.
  • the power supply processing of the power transmission device 10 and the mobile phone 20 will be described.
  • the control unit 53 switches on and off each of the elements F1 to F4 by applying a control voltage (gate voltage) to each of the switching elements F1 to F4 via the gate resistors R1 to R4.
  • the first and fourth switching elements F1, F4 and the second and third switching elements F2, F3 are alternately turned on and off.
  • alternating power is induced in the primary side coil 30
  • high frequency alternating magnetic flux is generated in the primary side coil 30.
  • the secondary side coil 40 receives the alternating magnetic flux of the primary side coil 30 and generates alternating power.
  • the alternating power of the secondary coil 40 is converted to DC power by being supplied to the full-wave rectifier circuit 61 via the capacitor C4.
  • the secondary battery 23 is charged by supplying the DC power smoothed by the capacitor C5 to the secondary battery 23.
  • the control unit 53 of the power transmission device 10 performs primary authentication based on “authentication control” for determining whether or not the power reception device is mounted on the housing 11 of the power transmission device 10 and battery information transmitted from the power reception device. “Coil selection control” for changing the usage pattern of the coil 30 (hereinafter “coil usage pattern”) is performed. In addition to this, the control unit 53 adjusts the frequency of the current supplied to the primary coil 30 during the charging of the secondary battery in the power receiving device, and controls the frequency during charging to the power receiving device by the power transmitting device 10. “Charge stop control” is performed to stop charging.
  • the selection of the coil usage pattern includes the following. (A) Selecting one of the coils 31 to 33 for charging the secondary battery in the power receiving device. (B) Selecting any two or more of the coils 31 to 33 for charging the secondary battery in the power receiving device.
  • the coil usage modes that can be selected by the power transmission device 10 include the following first to third single modes and first to fourth combined modes.
  • the coil which is not used in each usage form is hold
  • A) In the first single mode the first coil 31 is energized.
  • B) In the second single mode the second coil 32 is energized.
  • C) In the third single mode the third coil 33 is energized.
  • the first coil 31 and the second coil 32 are energized.
  • the battery information of the secondary battery 23 includes “battery information BA1”, “battery information BA2”, and “battery information BA3” corresponding to the first to third individual forms, and the first to fourth composite forms. “Battery information BB1”, “Battery information BB2”, “Battery information BB3”, and “Battery information BB4” are prepared. Each battery information includes the battery material, rated voltage, and battery capacity of the secondary battery 23.
  • Battery information BA1 indicates that the secondary battery 23 of the power receiving apparatus is suitable for charging in the first single form.
  • the battery information BA2 indicates that the secondary battery 23 of the power receiving apparatus is suitable for charging in the second single form.
  • the battery information BA3 indicates that the secondary battery 23 of the power receiving apparatus is suitable for charging in the third single form.
  • Battery information BB1 indicates that the secondary battery 23 of the power receiving apparatus is suitable for charging in the first composite form.
  • the battery information BB2 indicates that the secondary battery 23 of the power receiving device is suitable for charging in the second composite form.
  • the battery information BB3 indicates that the secondary battery 23 of the power receiving apparatus is suitable for charging in the third composite form.
  • the battery information BB4 indicates that the secondary battery 23 of the power receiving device is suitable for charging in the fourth composite form.
  • battery information BA1 to BA3 and battery information BB1 to BB4 are stored in advance in order to collate battery information transmitted from the power receiving apparatus. Further, the control unit 62 of the power receiving apparatus stores any one of the battery information BA1 to BA3 and the battery information BB1 to BB4 according to the secondary battery 23 of the power receiving apparatus.
  • Authentication control for determining whether or not a power receiving device is mounted on the power transmitting device 10 is performed as follows.
  • the control unit 53 of the power transmission apparatus 10 repeatedly performs control for transmitting the response request signal KA from the primary coil 30 to the mobile phone 20 at predetermined time intervals. At least one of the coils 31 to 33 is used for transmission of the response request signal KA.
  • the response request signal KA transmitted from the primary coil 30 is received by the control unit 62 via the secondary coil 40 in the mobile phone 20.
  • the control unit 62 performs control for transmitting the response confirmation signal KB and the battery information signal KC from the secondary coil 40.
  • the battery information signal KC includes the battery information of the mobile phone 20 described above.
  • the control unit 53 of the power transmission device 10 receives the response confirmation signal KB from the mobile phone 20, the control unit 53 determines that the mobile phone 20 is placed on the housing 11, and a flag indicating that the authentication of the mobile phone 20 has been established (hereinafter, “ , “Authentication completion flag FK”). Then, in a state where the authentication completion flag FK is set to ON, when the response confirmation signal KB from the mobile phone 20 cannot be received for a certain period or longer, the control unit 53 sets the authentication completion flag FK to OFF.
  • Coil selection control is performed as follows.
  • the control unit 53 of the power transmission device 10 collates the battery information included in the battery information signal KC with the battery information stored in advance, and obtains the battery information signal KC from the battery information signal KC. Check the battery information. And the control part 53 selects one from the above-mentioned several coil usage form according to the content of the obtained battery information.
  • the frequency control during charging is performed as follows.
  • the control unit 62 of the mobile phone 20 determines whether or not the current value of the direct current generated by the secondary circuit 60 (hereinafter, “charging current value AX”) is within a range suitable for charging the secondary battery 23. Determine. And the control part 62 performs control for transmitting the output request signal KR from the secondary side coil 40 to the power transmission apparatus 10, when it determines with the charging current value AX not being suitable for charge.
  • the output request signal KR includes information on the charging current value AX.
  • the control unit 53 of the power transmission apparatus 10 charges the mobile phone 20 by supplying current to the primary coil 30. At this time, the control unit 53 sets the frequency of the current supplied to the primary side coil 30 to the resonance frequency of the resonance circuit 52. Further, when receiving the output request signal KR from the mobile phone 20, the control unit 53 adjusts the frequency of the current supplied to the primary coil 30 based on the charging current value AX.
  • the charge stop control is performed as follows.
  • the control unit 62 of the mobile phone 20 performs control for transmitting a charge stop signal KS from the secondary coil 40 to the power transmission device 10 when the charging state of the secondary battery 23 is a full charge state.
  • the charge stop signal KS is a signal indicating a request to end charging of the secondary battery 23.
  • the control unit 53 of the power transmission device 10 stops energization of the primary coil 30 when receiving the charge stop signal KS from the mobile phone 20. That is, the charging of the mobile phone 20 by the power transmission device 10 is terminated.
  • the authentication control, the coil selection control, and the charge stop control are performed in the same manner when a power receiving device other than the mobile phone 20 is used.
  • the control unit 53 of the power transmission device 10 selects the coil usage pattern by coil selection control and then sets the authentication completion flag FK to OFF or until the charging stop signal KS is received from the mobile phone 20.
  • the mobile phone 20 is charged while maintaining the selected coil usage pattern.
  • the control unit 53 of the power transmission device 10 determines whether the battery information acquired from the mobile phone 20 corresponds to the battery information BA1 to BA3 or the battery information BB1 to BB4. At least one determination process is performed.
  • step S101 the control unit 53 determines whether or not the battery information acquired from the mobile phone 20 corresponds to any of the battery information BB1 to BB4.
  • the process proceeds to step S102.
  • the process proceeds to step S104.
  • step S102 the control unit 53 determines whether or not the battery information acquired from the mobile phone 20 is the battery information BA3. In step S103, it is determined whether or not the acquired battery information is battery information BA2.
  • control unit 53 performs one of the following processes (A) to (C) according to the determination result of step S102 or step S103.
  • step S102 When the determination result in step S102 is affirmative, that is, when the battery information acquired from the mobile phone 20 is battery information BA3, the control unit 53 selects the third single form as the coil use form in step S113.
  • step S102 When the determination result in step S102 is negative and the determination result in step S103 is affirmative, that is, when the battery information acquired from the mobile phone 20 is battery information BA2, the controller 53 determines in step S112.
  • the second single mode is selected as the coil usage mode.
  • step S102 and S103 When the determination results in steps S102 and S103 are negative, that is, when the battery information acquired from the mobile phone 20 is battery information BA1, the control unit 53 sets the first single form as the coil use form in step S111. select.
  • step S104 the control unit 53 determines whether or not the battery information acquired from the mobile phone 20 is the battery information BB1. In step S105, control unit 53 determines whether or not the acquired battery information is battery information BB2. In step S106, control unit 53 determines whether or not the acquired battery information is battery information BB3.
  • control unit 53 performs any of the following processes (A) to (D) according to the determination result of step S104, step S105, or step S106.
  • step S104 When the determination result of step S104 is affirmative, that is, when the battery information acquired from the mobile phone 20 is the battery information BB1, the control unit 53 selects the first combined form as the coil usage form in step S117.
  • step S104 determines in step S116.
  • the second composite form is selected as the coil use form.
  • step S115 the third composite form is selected as the coil use form.
  • step S114 When the determination result of steps S104 to S106 is negative, that is, when the battery information acquired from the mobile phone 20 is the battery information BB4, the control unit 53 selects the fourth composite form as the coil use form in step S114. To do.
  • the response confirmation signal KB transmitted from the control unit 62 of the mobile phone 20 and the battery information signal KC including the battery information BA3 are received by the control unit 53 of the power transmission device 10.
  • the control unit 53 selects the third single form as the coil use form and starts energization of the third coil 33.
  • the response confirmation signal KB transmitted from the control unit 62 of the mobile phone 20 and the battery information signal KC including the battery information BA2 are received by the control unit 53 of the power transmission device 10.
  • the control unit 53 selects the second single form as the coil use form and starts energization of the second coil 32.
  • the response confirmation signal KB transmitted from the control unit 62 of the mobile phone 20 and the battery information signal KC including the battery information BA1 are received by the control unit 53 of the power transmitting apparatus 10.
  • the control unit 53 selects the first single form as the coil use form, and starts energization of the first coil 31.
  • the non-contact power feeding device 1 selects the usage mode of the primary side coil 30 (first to third coils 31 to 33) based on the battery information of the secondary battery 23. According to this configuration, when the charging current value AX is within a range suitable for charging the secondary battery 23 during charging of the secondary battery 23 according to the selected coil usage pattern, the current supplied to the primary coil 30 is The frequency is maintained at the resonant frequency. For this reason, the power receiving apparatus can be charged with higher charging efficiency.
  • the non-contact power feeding device 1 of the first embodiment selects a coil usage mode suitable for the battery information of the secondary battery 23 mounted on the power receiving device.
  • the power feeding device 1 adjusts the frequency of the current of the primary coil 30 when the charging current value AX needs to be adjusted. For this reason, when the frequency of the current of the primary coil 30 is adjusted, the degree of deviation between the adjusted frequency of the current and the resonance frequency can be reduced as compared with the non-contact power feeding device of the comparative example. it can. That is, it is possible to suppress a significant decrease in charging efficiency due to the adjustment of the current frequency.
  • the second coil 32 is provided on the inner peripheral side of the third coil 33, and the first coil 31 is provided on the inner peripheral side of the second coil 32. Is provided. According to this configuration, as compared with the case where the first coil 31 and the second coil 32 are provided on the outer peripheral side of the third coil 33, one of the first to fourth composite forms is selected as the coil use form. Sometimes, the magnetic fluxes of the coils 31 to 33 can be prevented from canceling each other.
  • the first coil 31, the second coil 32, and the third coil 33 are provided on the same axis. According to this structure, the effect which suppresses that the magnetic flux between the primary side coil 30 and the secondary side coil 40 mutually cancels can be heightened.
  • the non-contact-type electric power feeder 1 of 2nd Embodiment is demonstrated.
  • the non-contact type electric power feeder 1 of 2nd Embodiment is comprised by changing a part of coil selection control in the non-contact type electric power feeder 1 of 1st Embodiment. For this reason, below, the detail of a different point from the non-contact-type electric power feeder 1 of 1st Embodiment is demonstrated, and the same code
  • the power transmission device 10 of the second embodiment is configured similarly to the configuration shown in FIG.
  • the power transmission device 10 of the second embodiment replaces (or in addition to) the battery information with a coil selection that changes the coil usage according to the charging information transmitted from the mobile phone 20 while the secondary battery 23 is being charged.
  • the coil selection control according to the second embodiment is referred to as “charging change control”. Control other than coil selection control is performed in the same manner as the power transmission device 10 of the first embodiment.
  • the state of charge of the secondary battery 23 is divided into four parts: “first charge state”, “second charge state”, “third charge state”, and “full charge state”.
  • the first charge state indicates a state where the charge amount is included in a range from “0%” to less than the first threshold value X1.
  • the second charging state indicates a state where the charging amount is included in a range from the first threshold value X1 to less than the second threshold value X2.
  • the third charge state indicates a state where the charge amount is included in the range from the second threshold value X2 to less than full charge.
  • the second threshold value X2 is set in advance as a value larger than the first threshold value X1.
  • charging information CA indicating the first charging state
  • charging information CB indicating the second charging state
  • charging information CC indicating the third charging state are prepared.
  • Each charging information is stored in advance in the control unit 62 of the mobile phone 20.
  • the control unit 62 of the mobile phone 20 When receiving the response request signal KA from the power transmission device 10, the control unit 62 of the mobile phone 20 performs control for transmitting the response confirmation signal KB and the charging information signal KD from the secondary coil 40.
  • the charging information signal KD includes charging information indicating the charging state of the secondary battery 23 detected by the control unit 62.
  • the change control during charging is performed as follows.
  • the control unit 62 of the mobile phone 20 transmits a charging information signal KD including charging information to the power transmission device 10. .
  • the control unit 53 of the power transmission device 10 collates the charging information included in the charging information signal KD from the mobile phone 20 with the charging information stored in advance, and confirms the content of the charging information obtained from the charging information signal KD. Then, one usage pattern is selected from a plurality of coil usage patterns according to the contents of the acquired charging information.
  • the control unit 53 of the power transmission device 10 sets the authentication completion flag FK to on and then sets the authentication completion flag FK to off, or until the charging stop signal KS is received from the mobile phone 20, or Until the charging information signal KD is received, the mobile phone 20 is charged while maintaining the selected coil usage pattern.
  • control unit 53 of the power transmission apparatus 10 determines at least one of the determination information in steps S201 and S202 in order to determine which of the charging information CA to CC the charging information acquired from the mobile phone 20 corresponds to. I do.
  • step S201 the control unit 53 determines whether or not the charging information acquired from the mobile phone 20 is the charging information CA.
  • step S202 control unit 53 determines whether or not the charging information acquired from mobile phone 20 is charging information CB.
  • control unit 53 performs one of the following processes (A) to (C) according to the determination result of step S201 or step S202.
  • step S201 When the determination result in step S201 is affirmative, that is, when the charging information acquired from the mobile phone 20 is charging information CA, the control unit 53 selects the first single mode as the coil usage mode in step S213.
  • step S212 When the determination result in step S201 is negative and the determination result in step S202 is affirmative, that is, when the charging information acquired from the mobile phone 20 is charging information CB, the control unit 53 determines in step S212.
  • the second single mode is selected as the coil usage mode.
  • step S201 and S202 When the determination results in steps S201 and S202 are negative, that is, when the charging information acquired from the mobile phone 20 is the charging information CC, the control unit 53 sets the third single mode as the coil usage mode in step S211. select.
  • the response confirmation signal KB transmitted from the control unit 62 of the mobile phone 20 and the charging information signal KD including the charging information CA are received by the control unit 53 of the power transmission device 10.
  • the control unit 53 selects the first single form as the coil use form, and starts energization of the first coil 31.
  • the control unit 62 of the mobile phone 20 transmits a charging information signal KD including the charging information CB.
  • the control unit 53 of the power transmission device 10 changes the coil usage mode from the first single mode to the second single mode, and starts energization of the second coil 32. .
  • the control unit 62 of the mobile phone 20 transmits a charging information signal KD including the charging information CC.
  • the control unit 53 of the power transmission device 10 changes the coil usage mode from the second single mode to the third single mode, and starts energization of the third coil 33. .
  • the control unit 62 of the mobile phone 20 transmits a charging stop signal KS.
  • the control unit 53 of the power transmission device 10 stops energization of the third coil 33. Thereby, charging of the mobile phone 20 is stopped.
  • the non-contact power feeding device 1 selects the usage mode of the primary side coil 30 (first to third coils 31 to 33) based on the charging information of the secondary battery 23. According to this configuration, the frequency of the current supplied to the primary coil 30 when the charging current value AX is within a range suitable for charging the secondary battery 23 during charging of the secondary battery 23 according to the selected coil usage pattern. Is maintained at the resonant frequency. For this reason, the power receiving apparatus can be charged with higher charging efficiency.
  • the non-contact type power feeding device 1 selects a coil usage mode suitable for the charging state of the secondary battery mounted on the power receiving device.
  • the power feeding device 1 adjusts the frequency of the current of the primary coil 30 when the charging current value AX needs to be adjusted. For this reason, when the frequency of the current of the primary side coil 30 is adjusted, the frequency of the current after adjustment is compared with the non-contact type power feeding device of the comparative example in which the primary side coil is configured by a single coil. The degree of deviation between the resonance frequency and the resonance frequency can be reduced. That is, it is possible to suppress a significant decrease in charging efficiency due to the adjustment of the current frequency.
  • the non-contact-type electric power feeder 1 of 3rd Embodiment is demonstrated.
  • the non-contact type electric power feeder 1 of 3rd Embodiment is comprised by changing a part of coil selection control in the non-contact type electric power feeder 1 of 1st Embodiment. For this reason, below, the detail of a different point from the non-contact-type electric power feeder 1 of 1st Embodiment is demonstrated, and the same code
  • the power transmission device 10 of the third embodiment is configured similarly to the configuration shown in FIG.
  • the non-contact power supply device 1 of the first embodiment selects a coil usage mode according to battery information.
  • the non-contact power supply device 1 of the third embodiment supplies a current (test current) to the primary coil 30 before starting charging of the secondary battery in the power receiving device, and the secondary side accordingly.
  • the coil usage mode is selected according to the magnitude of the charging current value AX obtained by the circuit 60.
  • the control unit 53 of the power transmission apparatus 10 supplies the test current to the primary coil 30 and performs the following first to third current tests.
  • A) In the first current test a test current is supplied to the first coil 31.
  • B) In the second current test a test current is supplied to the second coil 32.
  • the control unit 62 of the mobile phone 20 acquires the following first to third current values AX1 to AX3 based on the execution of the first to third current tests, respectively.
  • the first current value AX1 indicates the charging current value AX obtained by the first current test.
  • the second current value AX2 indicates the charging current value AX obtained by the second current test.
  • the third current value AX3 indicates the charging current value AX obtained by the third current test.
  • Coil selection control is performed as follows.
  • the control unit 53 of the power transmission apparatus 10 executes the current test after setting the authentication completion flag FK to ON.
  • the control unit 62 of the mobile phone 20 transmits a current information signal KE including the charging current value AX obtained by the current test to the power transmission device 10.
  • the control unit 53 of the power transmission device 10 compares the charging current value AX included in the current information signal KE with the required current value TX. When the charging current value AX is equal to or greater than the required current value TX, the control unit 53 selects a coil usage pattern including a coil energized in the current test.
  • the required current value TX indicates the smallest charging current value AX required for charging the secondary battery in the power receiving device.
  • the control unit 53 stores a plurality of required current values TX corresponding to various power receiving devices in advance.
  • the secondary battery can be charged even when the charging current value AX is less than the required current value TX. However, for example, the charging time until the fully charged state may be longer than a specified time.
  • the current generated in the secondary circuit 60 when a current is supplied to the primary coil 30 is an example of “secondary induced current”.
  • the current information signal KE is an example of a “secondary side response request signal”.
  • the control unit 53 of the power transmission device 10 selects the coil usage pattern by coil selection control and then sets the authentication completion flag FK to OFF or until the charging stop signal KS is received from the mobile phone 20.
  • the mobile phone 20 is charged while maintaining the selected coil usage pattern.
  • control unit 53 of the power transmission device 10 performs at least one determination process of steps S301 to S303 in order to determine whether or not the charging current value AX acquired from the mobile phone 20 is equal to or greater than the required current value TX. .
  • step S301 the control unit 53 performs a third current test, and determines whether or not the third current value AX3 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
  • step S302 the control unit 53 performs a second current test, and determines whether or not the second current value AX2 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
  • step S303 the control unit 53 performs a first current test and determines whether or not the first current value AX1 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
  • control unit 53 performs any of the following processes (A) to (D) according to the determination result of step S301, step S301, or step S301.
  • step S301 When the determination result in step S301 is affirmative, that is, when the charging current value AX (AX3) obtained by energizing the third coil 33 is equal to or greater than the required current value TX, the control unit 53 determines in step S314.
  • the third single mode is selected as the coil usage mode.
  • step S301 When the determination result in step S301 is negative and the determination result in step S302 is affirmative, that is, the charging current value AX (AX2) obtained by energizing the second coil 32 is the required current value TX.
  • the control unit 53 selects the second single form as the coil use form in step S313.
  • step S301 and step S302 When the determination result of step S301 and step S302 is negative determination and the determination result of step S303 is affirmative determination, that is, the charging current value AX (AX1) obtained by energizing the first coil 31 is requested.
  • the control unit 53 selects the first single form as the coil use form.
  • step S311 One of the first to fourth composite forms is selected as the coil use form. Note that which one of the first to fourth combined forms is selected is set in advance according to, for example, the power receiving device (secondary battery).
  • the effects (1) to (4) of the first embodiment and the following effect (5) can be obtained.
  • the non-contact power supply device 1 selects a coil usage mode according to the charging current value AX obtained by the current test. According to this configuration, a coil usage mode that can obtain a charging current value AX that is equal to or greater than the required current value TX is selected. For this reason, for example, the charging time can be suppressed from becoming excessively long due to the charging current value AX being smaller than the required current value TX.
  • the non-contact-type electric power feeder 1 of 4th Embodiment is demonstrated.
  • the non-contact type electric power feeder 1 of 4th Embodiment is comprised by changing a part of coil selection control in the non-contact type electric power feeder 1 of 3rd Embodiment. For this reason, below, the detail of a different point from the non-contact-type electric power feeder 1 of 3rd Embodiment is demonstrated, and the same code
  • the power transmission device 10 of the fourth embodiment is configured similarly to the configuration shown in FIG.
  • the contactless power supply device 1 of the third embodiment performs the first to third current tests in order to select the coil usage mode.
  • the non-contact power feeding device 1 of the fourth embodiment performs the third current test and the following fourth to sixth current tests in order to select the coil usage mode.
  • A) In the fourth current test a test current is supplied to the second and third coils 32 and 33.
  • C) In the sixth current test a test current is supplied to the first and second coils 31 and 32.
  • the control unit 62 of the mobile phone 20 acquires the following fourth to sixth current values AX4 to AX6 based on the execution of the fourth to sixth current tests, respectively.
  • the fourth current value AX4 indicates the charging current value AX obtained by the fourth current test.
  • the fifth current value AX5 indicates the charging current value AX obtained by the fifth current test.
  • the sixth current value AX6 indicates the charging current value AX obtained by the sixth current test.
  • the control unit 53 of the power transmission device 10 selects the coil usage pattern by coil selection control and then sets the authentication completion flag FK to OFF or until the charging stop signal KS is received from the mobile phone 20.
  • the mobile phone 20 is charged while maintaining the selected coil usage pattern.
  • the control unit 53 of the power transmission device 10 determines whether or not the charging current value AX (current information signal KE) acquired from the mobile phone 20 is greater than or equal to the required current value TX, so that at least steps S401 to S404 are performed. One determination process is performed.
  • step S401 the control unit 53 performs a third current test, and determines whether or not the third current value AX3 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
  • step S402 the control unit 53 performs a fourth current test, and determines whether or not the fourth current value AX4 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
  • step S403 the control unit 53 executes a fifth current test, and determines whether or not the fifth current value AX5 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
  • step S404 the control unit 53 performs a sixth current test, and determines whether the sixth current value AX6 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
  • control unit 53 performs any of the following processes (A) to (E) according to the determination result in step S401, S402, S403, or S404.
  • step S401 When the determination result in step S401 is affirmative, that is, when the charging current value AX (AX3) obtained by energizing the third coil 33 is equal to or greater than the required current value TX, the control unit 53 determines in step S415.
  • the third single mode is selected as the coil usage mode.
  • step S401 When the determination result of step S401 is negative and the determination result of step S402 is affirmative, that is, the charging current value AX (AX4) obtained by energizing the second and third coils 32 and 33 Is equal to or greater than the required current value TX, the control unit 53 selects the first combined form as the coil use form in step S414.
  • step S413 The charging current value AX obtained when the determination result of step S401 and step S402 is negative and the determination result of step S403 is affirmative, that is, by energizing the first and third coils 31, 33.
  • (AX5) is equal to or greater than the required current value TX, the control unit 53 selects the second composite form as the coil use form in step S413.
  • step S404 When the determination result of steps S401 to S403 is negative and the determination result of step S404 is affirmative, that is, the charging current value AX () obtained by energizing the first and second coils 31, 32 When AX6) is equal to or greater than the required current value TX, the control unit 53 selects the third composite form as the coil use form in step S412.
  • step S411 the fourth composite form is selected as the coil use form.
  • the effects (1) to (4) of the first embodiment and the effect (5) of the third embodiment are obtained.
  • the non-contact-type electric power feeder 1 of 5th Embodiment is demonstrated.
  • the non-contact type electric power feeder 1 of 5th Embodiment is comprised by changing a part of coil selection control in the non-contact type electric power feeder 1 of 3rd and 4th embodiment. For this reason, below, the detail of a different point from the non-contact-type electric power feeder 1 of 3rd and 4th embodiment is demonstrated, and it is the same about the structure which is common in the non-contact-type electric power feeder 1 of 3rd and 4th embodiment. A reference numeral is attached, and a part or all of the description is omitted.
  • the coil selection control according to the fifth embodiment will be described below with a focus on the changes from the third and fourth embodiments.
  • the power transmission device 10 of the fifth embodiment is configured similarly to the configuration shown in FIG.
  • the contactless power supply device 1 of the third embodiment performs the first to third current tests in order to select the coil usage mode.
  • the non-contact power feeding device 1 of the fourth embodiment performs the third to sixth current tests in order to select the coil usage mode.
  • the non-contact power feeding device 1 of the fifth embodiment performs the first to sixth current tests for selection of the coil usage mode.
  • the control unit 53 of the power transmission device 10 selects the coil usage pattern by coil selection control and then sets the authentication completion flag FK to OFF or until the charging stop signal KS is received from the mobile phone 20.
  • the mobile phone 20 is charged while maintaining the selected coil usage pattern.
  • the control unit 53 of the power transmission apparatus 10 determines whether or not the charging current value AX (current information signal KE) acquired from the mobile phone 20 is greater than or equal to the required current value TX, so that at least steps S501 to S506 are performed. One determination process is performed.
  • step S501 the control unit 53 performs a third current test, and determines whether or not the third current value AX3 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
  • step S502 the control unit 53 performs a second current test, and determines whether or not the second current value AX2 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
  • step S503 the control unit 53 performs a fourth current test, and determines whether or not the fourth current value AX4 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
  • step S504 the control unit 53 performs a first current test and determines whether or not the first current value AX1 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
  • step S505 the control unit 53 executes a fifth current test, and determines whether or not the fifth current value AX5 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
  • step S506 the control unit 53 performs a sixth current test, and determines whether or not the sixth current value AX6 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
  • control unit 53 performs any of the following processes (A) to (G) according to the determination result in steps S501, S502, S503, S504, S505, or S506.
  • step S501 When the determination result in step S501 is affirmative, that is, when the charging current value AX (AX3) obtained by energizing the third coil 33 is equal to or greater than the required current value TX, the control unit 53 determines in step S517.
  • the third single mode is selected as the coil usage mode.
  • step S501 When the determination result of step S501 is negative and the determination result of step S502 is affirmative, that is, the charging current value AX (AX2) obtained by energizing the second coil 32 is the required current value TX.
  • the control unit 53 selects the second single form as the coil use form in step S516.
  • step S504 When the determination results of steps S501 to S503 are negative and the determination result of step S504 is affirmative, that is, the charging current value AX (AX1) obtained by energizing the first coil 31 is the required current.
  • the control unit 53 selects the first single form as the coil use form in step S514.
  • step S505 When the determination results of steps S501 to S504 are negative and the determination result of step S505 is affirmative, that is, the charging current value AX () obtained by energizing the first and third coils 31, 33 When AX5) is equal to or greater than the required current value TX, the control unit 53 selects the second composite form as the coil use form in step S513.
  • step S506 When the determination results of steps S501 to S505 are negative and the determination result of step S506 is affirmative, that is, the charging current value AX () obtained by energizing the first and second coils 31, 32 When AX6) is equal to or greater than the required current value TX, the control unit 53 selects the third composite form as the coil use form in step S512.
  • step S511 the unit 53 selects the fourth composite form as the coil use form.
  • the effects (1) to (4) of the first embodiment and the effect (5) of the third embodiment can be obtained.
  • the coil selection control of the first embodiment may be applied to the coil selection control of the second embodiment. Further, the coil selection control of the first embodiment may be applied to the coil selection control of the third to fifth embodiments.
  • the coil selection control of the second embodiment may be applied to the coil selection control of the third to fifth embodiments. Further, the coil selection control of the first embodiment and the coil selection control of the second embodiment may be applied to the coil selection control of the third to fifth embodiments.
  • the coil usage form is selected based on the battery information (battery information signal KC) transmitted from the mobile telephone 20, the information for selecting a coil usage form is only battery information.
  • the following information may be used.
  • the power receiving device transmits the battery information signal KC together with the response confirmation signal KB, but the transmission processing of the battery information signal KC can be changed as follows. That is, when the power receiving apparatus receives the response request signal KA, first, the response confirmation signal KB is transmitted to the power transmitting apparatus 10. Upon receiving the response confirmation signal KB from the power receiving device, the power transmitting device 10 transmits a battery information request signal to the power receiving device. The power receiving device transmits the battery information signal KC to the power transmitting device 10 when receiving the battery information request signal. Note that the charging information signal KD of the second embodiment may be transmitted based on when the charging information request signal is received from the power transmission device 10 as described above.
  • the second coil 32 is disposed on the inner peripheral side of the third coil 33 and the first coil 31 is disposed on the inner peripheral side of the second coil 32. At least one of the two coils 32 may be disposed outside the third coil 33.
  • the first to third coils 31 to 33 are provided coaxially, but the arrangement of the first to third coils 31 to 33 may be changed as follows.
  • the first coil 31 is eccentric with respect to the second coil 32 and the third coil 33.
  • the second coil 32 is eccentric with respect to the first coil 31 and the third coil 33.
  • the third coil 33 is eccentric with respect to the first coil 31 and the second coil 32.
  • the centers of the first to third coils 31 to 33 are provided at different positions.
  • the charging state of the secondary battery 23 is divided into four states of the first to third charging states and the fully charged state, but the charging state is two types, three types, or five or more types. It may be divided into
  • the coil usage type is selected according to the charge condition of the secondary battery 23, it replaces with a charge condition and selects a coil usage pattern according to the charge time of the secondary battery 23. Also good.
  • the charging time indicates an elapsed time after the charging by the power transmission device 10 is started.
  • the period from “0” seconds to the first threshold is the charging time TA
  • the period from the first threshold to the second threshold is the charging time TB
  • the period is equal to or greater than the second threshold.
  • the second threshold is set as a value (time) larger than the first threshold.
  • the control unit 53 selects the first single mode as the coil usage mode.
  • the control unit 53 selects the second single form as the coil usage form.
  • the control unit 53 selects the third single mode as the coil usage mode. It should be noted that the charging time category may be further increased, and at least one of the first to third single modes and the first to fourth combined modes may be selected by the change control during charging.
  • the control part 53 of the power transmission apparatus 10 compares the charging current value AX with the request
  • the selection method of the coil usage form based on this is not restricted to this.
  • the third embodiment can be modified as in the following (A) or (B).
  • the control unit 62 of the mobile phone 20 compares the charging current value AX and the required current value TX, and transmits a comparison information signal including comparison result information to the power transmission device 10.
  • the control unit 53 of the power transmission device 10 selects a coil usage pattern according to the comparison result information included in the comparison information signal from the mobile phone 20. That is, when the comparison result information indicates that the charging current value AX is equal to or greater than the required current value TX, the control unit 53 selects a coil usage mode corresponding to the current test executed to obtain the comparison result information. On the other hand, when the comparison result information indicates that the charging current value AX is less than the required current value TX, the control unit 53 executes another current test.
  • the comparison information signal is an example of a “secondary response request signal”.
  • the control unit 62 of the mobile phone 20 compares the charging current value AX and the requested current value TX, and transmits a usage pattern request signal for designating a coil usage pattern to the power transmission apparatus 10 according to the comparison result. For example, when the charging current value AX is equal to or greater than the required current value TX, the control unit 62 transmits a usage pattern request signal for designating a coil usage pattern corresponding to the current test performed when the charging current value AX is acquired. On the other hand, when the charging current value AX is less than the required current value TX, the control unit 62 transmits a test request signal for requesting execution of another current test.
  • the control unit 53 of the power transmission device 10 selects the coil usage pattern according to the designation information included in the usage pattern request signal from the mobile phone 20. In this modification, the usage pattern request signal is an example of a “secondary response request signal”.
  • the number of litz wires of the first coil 31 is larger than the number of litz wires of the second coil 32
  • the number of litz wires of the second coil 32 is the number of litz wires of the third coil 33.
  • the relationship of the number of litz wires is not limited to this.
  • the relationship of the number of litz wires can be changed as follows. (A) The number of litz wires of the two coils among the first to third coils 31 to 33 is made the same. (B) The number of litz wires of the first to third coils 31 to 33 is made the same.
  • the primary coil 30 is configured by three coils having different sizes (that is, different diameters), but is configured by a plurality of coils having the same size (the same diameter). May be.
  • the arrangement of the plurality of coils for example, those shown in FIGS. 12 and 13 can be employed.
  • the primary coil 80 includes first to third coils 81 to 83 all having the same diameter. These first to third coils 81 to 83 are arranged in a state of being separated from each other within a range corresponding to the size (diameter) of the secondary coil 40 (within the two-dot chain line in FIG. 12). .
  • the first to third coils 81 to 83 of the primary side coil 80 are within a range corresponding to the size (diameter) of the secondary side coil 40 (the second coil in FIG. In the dotted line), they are overlapped with each other so as to have an overlapping region R indicated by diagonal lines. That is, the overlapping region R is formed by providing the first to third coils 81 to 83 at different positions in the axial direction.
  • the yoke may be provided only in the coil 81 disposed at the lowest position in the axial direction among the coils 81 to 83. As this yoke, for example, a yoke that can cover only the coil 81 from below, or a yoke that can cover the entire coils 81 to 83 from below can be used.
  • the entire coils 81 to 83 may be overlapped with each other. That is, the coils 81 to 83 may be arranged in the axial direction and the coils 81 to 83 may be arranged coaxially.
  • an operation unit 90 for the user to switch the coil usage mode may be provided in the power transmission device 10.
  • the operation unit 90 is provided with an operation button 91 for selecting the first single form, an operation button 92 for selecting the second single form, and an operation button 93 for selecting the third single form.
  • the operation unit 90 may be provided with operation buttons corresponding to each of the first to fourth composite forms.
  • the power transmission device 10 changes the coil usage pattern according to the signal (KC, KD, KE, etc.) received from the power reception device (mobile phone 20) as in the above embodiments. Instead of this, it may be configured such that the coil usage pattern is simply changed according to the operation of the operation unit 90.
  • the distances from the end surfaces near the mounting surface 11A in the coils 31 to 33 to the mounting surface 11A are set to be the same (see FIG. 1B). However, this distance may be different between the coils 31 to 33.
  • the distance between the end surface of the first coil 31 and the mounting surface 11A is the first distance
  • the distance between the end surface of the second coil 32 and the mounting surface 11A is the second distance
  • the end surface of the third coil 33 and the mounting surface 11A The relationship between these first to third distances may be set as follows when the distance between the first and third distances is the third distance. (A) The first distance is made larger or smaller than the second distance and the third distance.
  • the second distance is made larger or smaller than the first distance and the third distance.
  • the third distance is made larger or smaller than the first distance and the second distance.
  • the power transmission device 10 may be provided with a display unit 70 that displays the selected coil usage pattern.
  • the display unit 70 includes a first display lamp 71 that is lit when the first single form is selected, a second display lamp 72 that is lit when the second single form is selected, and a third single form. And a third display lamp 73 that is lit when selected.
  • the display unit 70 may be provided with fourth to seventh display lamps corresponding to the first to fourth composite forms.
  • the display unit 70 is provided to indicate to the user the coil usage mode being selected. However, the display unit 70 is displayed as a guide to the user on the mounting surface 11A. The unit 70 may be provided.
  • the mounting surface 11A is provided with a guide unit 100 that indicates a mounting position according to the type of the power receiving device.
  • the guide unit 100 includes a first guide unit 101 indicating a mounting position of a power receiving device suitable for charging by the first coil 31, and a second guide unit 102 indicating a mounting position of the power receiving device suitable for charging by the second coil 32. And a third guide part 103 indicating the mounting position of the power receiving device suitable for charging by the third coil 33.
  • the control part 53 of the power transmission apparatus 10 shown by FIG. 2 will light the display lamp corresponding to the selected usage type, when a coil usage type is selected by coil selection control.
  • the first single form is selected as the coil use form
  • the first display lamp 71 is turned on.
  • the mounting position of the power receiving device on the mounting surface 11 ⁇ / b> A is the second guide unit 102 or the third guide unit 103
  • the user sets the mounting position of the power receiving device on the display unit 70 based on the display on the display unit 70. It can be confirmed that it does not correspond to the display.
  • charging by a 1st single form is performed by moving a power receiving apparatus to the position of the 1st guide part 101 corresponding to the 1st display lamp 71 currently lighted.
  • the first coil 31, the second coil 32, and the third coil 33 are provided as the primary coil 30, but any one of the coils 31 to 33 is omitted and the primary coil 30 is omitted.
  • the number of side coils 30 may be changed to two. Further, the number of primary coils 30 may be changed to four or more by adding at least one coil to the coils 31 to 33.
  • a power transmission device capable of mounting at least one of an electric toothbrush and a shaver as a power receiving device can also be used.

Abstract

A contactless power supply device (1) contains a power transmission device (10) and sends an alternating magnetic flux from a primary coil (30) provided in the power transmission device (10) to a secondary coil (40) provided in the power receiving device (20). The power transmission device (10) is provided with multiple primary coils (31-33) electrically connected in parallel. The power transmission device (10) changes the form of use of the multiple primary coils (31-33) in accordance with a signal received from the power receiving device (20).

Description

非接触式給電装置Non-contact power feeder
 本発明は、非接触式給電装置に関する。 The present invention relates to a contactless power feeding device.
 上記非接触式給電装置としては、例えば特許文献1に記載のものが知られている。 As the non-contact type power feeding device, for example, the one described in Patent Document 1 is known.
 この種の非接触式給電装置においては、送電装置の1次側コイルと受電装置の2次側コイルとの電磁誘導により受電装置の2次電池の充電が行われる。 In this type of non-contact power feeding device, the secondary battery of the power receiving device is charged by electromagnetic induction between the primary side coil of the power transmitting device and the secondary side coil of the power receiving device.
特開2008-136311号公報JP 2008-136311 A
 ところで、互いに異なる複数の種類の受電装置、例えば携帯電話および電動歯ブラシにおいては、それぞれの2次電池の充電に適した電流値(充電電流値)の大きさが互いに異なることもある。このため、1つの送電装置により複数の種類の受電装置の充電を行う場合には、1次側コイルの出力を各受電装置の充電電流値に見合う大きさに設定することが必要となる。 By the way, in a plurality of different types of power receiving devices such as mobile phones and electric toothbrushes, the magnitudes of current values (charging current values) suitable for charging the respective secondary batteries may be different from each other. For this reason, when charging a plurality of types of power receiving devices with one power transmitting device, it is necessary to set the output of the primary side coil to a magnitude corresponding to the charging current value of each power receiving device.
 一方、送電装置により受電装置の2次電池の充電を行う場合には、充電効率を高めるため、1次側コイルに共振周波数の電流を供給することが好ましい。 On the other hand, when the secondary battery of the power receiving device is charged by the power transmitting device, it is preferable to supply a current at the resonance frequency to the primary coil in order to increase the charging efficiency.
 しかしながら、特許文献1の非接触式給電装置において、例えば共振周波数の電流を1次側コイルに供給することにより携帯電話の充電が可能となるように送電装置が構成されている場合、電動歯ブラシの充電時には1次側コイルへの供給電流の周波数を共振周波数とは異なるものに変更する必要が生じる。このとき、変更後の周波数が共振周波数から乖離したものとなるにつれて充電効率は低下する。 However, in the non-contact power supply device of Patent Document 1, for example, when the power transmission device is configured so that the mobile phone can be charged by supplying a current at a resonance frequency to the primary side coil, At the time of charging, it is necessary to change the frequency of the supply current to the primary coil to be different from the resonance frequency. At this time, the charging efficiency decreases as the changed frequency deviates from the resonance frequency.
 他方、充電電流値は受電装置の種類以外に、例えば2次電池の充電状態に応じても変化する。このため、1つの受電装置について2次電池の充電を行う場合において、2次電池への充電電流を確保するためには、1次側コイルの電流の周波数を共振周波数とは異なるものに設定する必要が生じる。また、充電状態の変化にともない充電電流値が大きく変化する場合には、これに応じて1次側コイルの出力も大きく変更する必要が生じる。このため、1次側コイルの電流の周波数が共振周波数に対して乖離する度合いが大きくなる。 On the other hand, the charging current value varies depending on the state of charge of the secondary battery, for example, in addition to the type of the power receiving device. For this reason, when charging a secondary battery for one power receiving device, in order to secure a charging current for the secondary battery, the frequency of the current of the primary coil is set to be different from the resonance frequency. Need arises. Further, when the charging current value greatly changes with the change in the state of charge, the output of the primary side coil needs to be greatly changed accordingly. For this reason, the degree to which the frequency of the current of the primary coil deviates from the resonance frequency is increased.
 このように、従来の非接触式給電装置においては、受電装置の種類および充電状態の少なくとも一方の影響により充電効率の低下が生じるおそれがある。 As described above, in the conventional non-contact type power feeding device, there is a possibility that the charging efficiency is lowered due to the influence of at least one of the type of the power receiving device and the charging state.
 本発明は、より高い充電効率で受電装置の充電を行うことのできる非接触式給電装置を提供する。 The present invention provides a non-contact power feeding device that can charge a power receiving device with higher charging efficiency.
 本発明の第一の態様では、送電装置に設けられた1次側コイルから受電装置に設けられた2次側コイルに交番磁束を付与する非接触式給電装置は、前記送電装置に設けられ、電気的に並列に接続された複数の1次側コイルを備え、前記送電装置は、前記受電装置から受信した信号に応じて前記複数の1次側コイルの使用形態を変更するように構成されている。 In the first aspect of the present invention, a non-contact power supply device that applies an alternating magnetic flux from a primary coil provided in a power transmission device to a secondary coil provided in a power reception device is provided in the power transmission device. A plurality of primary coils electrically connected in parallel; and the power transmission device is configured to change a usage pattern of the plurality of primary coils according to a signal received from the power reception device. Yes.
 この構成によれば、送電装置は、受電装置から受信した信号に応じて複数の1次側コイルの使用形態を変更することで、より高い充電効率で受電装置の充電を行う。 According to this configuration, the power transmission device charges the power reception device with higher charging efficiency by changing the usage pattern of the plurality of primary coils in accordance with the signal received from the power reception device.
 本発明の第二の態様では、送電装置に設けられた1次側コイルから受電装置に設けられた2次側コイルに交番磁束を付与する非接触式給電装置は、前記送電装置に設けられ、電気的に並列に接続された複数の1次側コイルと、前記送電装置に設けられ、前記複数の1次側コイルの使用形態を変更するための操作部とを備え、前記送電装置は、前記操作部の操作に応じて前記複数の1次側コイルの使用形態を変更するように構成されている。 In the second aspect of the present invention, a non-contact power feeding device that applies an alternating magnetic flux from a primary coil provided in a power transmission device to a secondary coil provided in a power reception device is provided in the power transmission device. A plurality of primary coils electrically connected in parallel; and an operation unit provided in the power transmission device for changing a usage pattern of the plurality of primary coils, the power transmission device includes: The usage form of the plurality of primary side coils is changed in accordance with the operation of the operation unit.
 この構成によれば、送電装置は、操作部の操作に応じて複数の1次側コイルの使用形態を変更することで、より高い充電効率で受電装置の充電を行う。 According to this configuration, the power transmission device charges the power reception device with higher charging efficiency by changing the usage pattern of the plurality of primary coils in accordance with the operation of the operation unit.
図1(a)は第1実施形態の非接触式給電装置の概略的な構造を示す斜視図、図1(b)は送電装置に携帯電話が搭載された状態において図1(a)のA-A線に沿う断面構造を示す断面図。FIG. 1A is a perspective view showing a schematic structure of the contactless power feeding device of the first embodiment, and FIG. 1B is a diagram of A in FIG. 1A in a state where a mobile phone is mounted on the power transmission device. Sectional drawing which shows the cross-section along an A line. 第1実施形態の非接触式給電装置の回路構成を示す回路図。The circuit diagram which shows the circuit structure of the non-contact-type electric power feeder of 1st Embodiment. 第1実施形態の非接触式給電装置によるコイル選択制御の手順を示すフローチャート。The flowchart which shows the procedure of the coil selection control by the non-contact-type electric power feeder of 1st Embodiment. 第1実施形態の非接触式給電装置によるコイル選択制御の手順を示すフローチャート。The flowchart which shows the procedure of the coil selection control by the non-contact-type electric power feeder of 1st Embodiment. 第1実施形態の非接触式給電装置によるコイル選択制御の一実行例を示すタイムチャート。The time chart which shows one execution example of the coil selection control by the non-contact-type electric power feeder of 1st Embodiment. 第2実施形態の非接触式給電装置による充電時変更制御の手順を示すフローチャート。The flowchart which shows the procedure of the change control at the time of charge by the non-contact-type electric power feeder of 2nd Embodiment. 第2実施形態の非接触式給電装置による充電時変更制御の一実行例を示すタイムチャート。The time chart which shows one execution example of the change control at the time of charge by the non-contact-type electric power feeder of 2nd Embodiment. 第3実施形態の非接触式給電装置によるコイル選択制御の手順を示すフローチャート。The flowchart which shows the procedure of the coil selection control by the non-contact-type electric power feeder of 3rd Embodiment. 第4実施形態の非接触式給電装置によるコイル選択制御の手順を示すフローチャート。The flowchart which shows the procedure of the coil selection control by the non-contact-type electric power feeder of 4th Embodiment. 第5実施形態の非接触式給電装置によるコイル選択制御の手順を示すフローチャート。The flowchart which shows the procedure of the coil selection control by the non-contact-type electric power feeder of 5th Embodiment. 第5実施形態の非接触式給電装置によるコイル選択制御の手順を示すフローチャート。The flowchart which shows the procedure of the coil selection control by the non-contact-type electric power feeder of 5th Embodiment. その他の実施形態としての非接触式給電装置(送電装置)の平面構造を示す平面図。The top view which shows the planar structure of the non-contact-type electric power feeder (power transmission device) as other embodiment. その他の実施形態としての非接触式給電装置(送電装置)の平面構造を示す平面図。The top view which shows the planar structure of the non-contact-type electric power feeder (power transmission device) as other embodiment. その他の実施形態としての非接触式給電装置(送電装置)の平面構造を示す平面図。The top view which shows the planar structure of the non-contact-type electric power feeder (power transmission device) as other embodiment.
 (第1実施形態)
 図1~図5を参照して、第1実施形態の非接触式給電装置1について説明する。
(First embodiment)
A non-contact type power feeding device 1 according to the first embodiment will be described with reference to FIGS.
 図1に示されるように、非接触式給電装置1は、各種の受電装置に送電する送電装置10を備える。送電装置10により給電される受電装置としては、図示される携帯電話20の他に、例えば、スマートフォン、携帯情報端末、ポータブルオーディオプレーヤー、ICレコーダー、デジタルカメラ、デジタルビデオカメラ、携帯ゲーム機、およびノートパソコン等が挙げられる。 As shown in FIG. 1, the non-contact power supply device 1 includes a power transmission device 10 that transmits power to various power reception devices. Examples of the power receiving device fed by the power transmitting device 10 include a smartphone, a portable information terminal, a portable audio player, an IC recorder, a digital camera, a digital video camera, a portable game machine, and a notebook in addition to the illustrated mobile phone 20. PC etc. are mentioned.
 携帯電話20の構成について説明する。 The configuration of the mobile phone 20 will be described.
 図1(a)に示されるように、携帯電話20は、2次電池23が内蔵された本体としての第1ハウジング21と、ヒンジにより第1ハウジング21に取り付けられた第2ハウジング22とを含む。 As shown in FIG. 1A, the mobile phone 20 includes a first housing 21 as a main body in which a secondary battery 23 is incorporated, and a second housing 22 attached to the first housing 21 by a hinge. .
 図1(b)に示されるように、携帯電話20の第1ハウジング21内には2次側コイル40が設けられている。2次側コイル40には、平面状のコイル41と、コイル41を上方から覆う平板状のヨーク42とが設けられている。2次側コイル40は、回路基板(図示略)を介して2次電池23に電気的に接続されている。 As shown in FIG. 1B, a secondary coil 40 is provided in the first housing 21 of the mobile phone 20. The secondary coil 40 is provided with a planar coil 41 and a flat yoke 42 that covers the coil 41 from above. The secondary coil 40 is electrically connected to the secondary battery 23 via a circuit board (not shown).
 送電装置10の構成について説明する。 The configuration of the power transmission device 10 will be described.
 図1(a)に示されるように、送電装置10は、携帯電話20に送電する1次側コイル30と、1次側コイル30に電気的に接続される回路基板12と、送電装置10の各要素が取り付けられるハウジング11とを含む。ハウジング11は、携帯電話20などの受電装置を載せるための搭載面11Aを有する。 As illustrated in FIG. 1A, the power transmission device 10 includes a primary coil 30 that transmits power to the mobile phone 20, a circuit board 12 that is electrically connected to the primary coil 30, and the power transmission device 10. And a housing 11 to which each element is attached. The housing 11 has a mounting surface 11A on which a power receiving device such as the mobile phone 20 is placed.
 図1(b)に示されるように、1次側コイル30には、最小径の第1コイル31と、第1コイル31よりも径が大きい第2コイル32と、最大径の第3コイル33と、これらコイル31~33を収容するヨーク34とが設けられている。 As shown in FIG. 1B, the primary coil 30 includes a first coil 31 having a minimum diameter, a second coil 32 having a diameter larger than that of the first coil 31, and a third coil 33 having a maximum diameter. And a yoke 34 for accommodating the coils 31 to 33 is provided.
 第1コイル31、第2コイル32、および第3コイル33はそれぞれ、ヨーク34内において導電線を巻き回すことにより形成されている。本例では、各コイル31~33は、複数のリッツ線を有する導電線を用いて形成されている。 The first coil 31, the second coil 32, and the third coil 33 are each formed by winding a conductive wire in the yoke. In this example, each of the coils 31 to 33 is formed using a conductive wire having a plurality of litz wires.
 第1コイル31は、第2コイル32の内周側に設けられている。第2コイル32は、第3コイル33の内周側に設けられている。第1コイル31の中心線、第2コイル32の中心線、および第3コイル33の中心線は同軸上に位置する。各コイル31~33の高さは同じに設定されている。また、各コイル31~33における搭載面11Aに近い側の端面から搭載面11Aまでの距離は同じに設定されている。 The first coil 31 is provided on the inner peripheral side of the second coil 32. The second coil 32 is provided on the inner peripheral side of the third coil 33. The center line of the first coil 31, the center line of the second coil 32, and the center line of the third coil 33 are located on the same axis. The heights of the coils 31 to 33 are set to be the same. In addition, the distance from the end surface on the side close to the mounting surface 11A in each of the coils 31 to 33 to the mounting surface 11A is set to be the same.
 第1コイル31のターン数は、第2コイル32のターン数よりも多い。第2コイル32のターン数は、第3コイル33のターン数よりも多い。第1コイル31のリッツ線の本数は、第2コイル32のリッツ線の本数よりも多い。第2コイル32のリッツ線の本数は、第3コイル33のリッツ線の本数よりも多い。 The number of turns of the first coil 31 is greater than the number of turns of the second coil 32. The number of turns of the second coil 32 is greater than the number of turns of the third coil 33. The number of litz wires of the first coil 31 is greater than the number of litz wires of the second coil 32. The number of litz wires of the second coil 32 is larger than the number of litz wires of the third coil 33.
 ヨーク34は、中央壁35、内側壁36、中側壁37、外側壁38、および底壁39を含む。中央壁35は、1次側コイル30の径方向において第1コイル31の内周側に設けられている。内側壁36は、1次側コイル30の径方向において第1コイル31と第2コイル32との間に設けられている。中側壁37は、1次側コイル30の径方向において第2コイル32と第3コイル33との間に設けられている。外側壁38は、第3コイル33の外周を囲うように設けられている。底壁39は、コイル31~33と回路基板12との間に設けられている。中央壁35、内側壁36、中側壁37、および外側壁38は、底壁39に連結されている。 The yoke 34 includes a central wall 35, an inner wall 36, an intermediate wall 37, an outer wall 38, and a bottom wall 39. The central wall 35 is provided on the inner peripheral side of the first coil 31 in the radial direction of the primary coil 30. The inner wall 36 is provided between the first coil 31 and the second coil 32 in the radial direction of the primary coil 30. The middle wall 37 is provided between the second coil 32 and the third coil 33 in the radial direction of the primary coil 30. The outer wall 38 is provided so as to surround the outer periphery of the third coil 33. The bottom wall 39 is provided between the coils 31 to 33 and the circuit board 12. The central wall 35, the inner wall 36, the middle wall 37, and the outer wall 38 are connected to the bottom wall 39.
 非接触式給電装置1の充電処理の概要について説明する。 The outline of the charging process of the non-contact power supply device 1 will be described.
 送電装置10に携帯電話20が搭載された状態において、1次側コイル30に交番電力が供給されると、送電装置10の1次側コイル30と携帯電話20の2次側コイル40との間で電磁誘導が生じて2次電池23の充電が行われる。なお、同一の条件のもとで各コイル31~33に交流電流が供給されたとき、第1~第3コイル31~33にそれぞれ第1~第3交番磁束が生じる。これら第1~第3交番磁束の大きさの関係は、第1交番磁束>第2交番磁束>第3交番磁束の関係となる。 When alternating power is supplied to the primary side coil 30 in a state where the mobile phone 20 is mounted on the power transmission device 10, it is between the primary side coil 30 of the power transmission device 10 and the secondary side coil 40 of the mobile phone 20. Thus, electromagnetic induction occurs and the secondary battery 23 is charged. When an alternating current is supplied to each of the coils 31 to 33 under the same conditions, first to third alternating magnetic fluxes are generated in the first to third coils 31 to 33, respectively. The relationship between the magnitudes of the first to third alternating magnetic fluxes is the relationship of first alternating magnetic flux> second alternating magnetic flux> third alternating magnetic flux.
 図2を参照して、送電装置10および受電装置(20)の回路構成について説明する。 The circuit configuration of the power transmission device 10 and the power reception device (20) will be described with reference to FIG.
 送電装置10は、交番電力を生成する1次側回路50を備える。1次側回路50は、送電装置10の電源としての直流電源E1と、フルブリッジ回路51と、フルブリッジ回路51等の制御を行う制御部53とを含む。 The power transmission device 10 includes a primary circuit 50 that generates alternating power. The primary circuit 50 includes a DC power source E1 as a power source of the power transmission device 10, a full bridge circuit 51, and a control unit 53 that controls the full bridge circuit 51 and the like.
 フルブリッジ回路51は、それぞれ電界効果型トランジスタ(FET)からなる第1~第4スイッチング素子F1~F4を含む。 The full bridge circuit 51 includes first to fourth switching elements F1 to F4 each formed of a field effect transistor (FET).
 第1~第4スイッチング素子F1~F4は、それぞれ第1~第4ゲート抵抗R1~R4を介して制御部53に接続されている。また、第1~第4スイッチング素子F1~F4には、それぞれ第1~第4内蔵ダイオードD1~D4が並列に接続されている。 The first to fourth switching elements F1 to F4 are connected to the control unit 53 via first to fourth gate resistors R1 to R4, respectively. Also, first to fourth built-in diodes D1 to D4 are connected in parallel to the first to fourth switching elements F1 to F4, respectively.
 フルブリッジ回路51は更に共振回路52を含む。共振回路52は概して、コンデンサの内部に電界として蓄えられたエネルギ、およびコイルの内部に磁界として蓄えられたエネルギをコンデンサとコイルとの間で授受する。 The full bridge circuit 51 further includes a resonance circuit 52. The resonant circuit 52 generally transfers energy stored as an electric field inside the capacitor and energy stored as a magnetic field inside the coil between the capacitor and the coil.
 共振回路52には、上記第1~第3コイル31~33を含む1次側コイル30が設けられている。1次側コイル30には、各スイッチング素子F1~F4を介して交番電力が供給される。第1~第3コイル31~33には、それぞれコンデンサC1~C3が並列に接続されている。またこの他に、共振回路52は、第1コイル31への電力の供給および遮断を切り替える第1スイッチS1と、第2コイル32への電力の供給および遮断を切り替える第2スイッチS2と、第3コイル33への電力の供給および遮断を切り替える第3スイッチS3とを含む。 The primary circuit 30 including the first to third coils 31 to 33 is provided in the resonance circuit 52. Alternating power is supplied to the primary coil 30 via the switching elements F1 to F4. Capacitors C1 to C3 are connected in parallel to the first to third coils 31 to 33, respectively. In addition to this, the resonance circuit 52 includes a first switch S1 that switches supply and cut-off of power to the first coil 31, a second switch S2 that switches supply and cut-off of power to the second coil 32, and a third switch And a third switch S3 for switching between supply and interruption of power to the coil 33.
 受電装置としての携帯電話20には、交番電力を直流電力に変換する2次側回路60が設けられている。2次側回路60は、1次側コイル30で発生した磁束を受ける2次側コイル40と、2次側コイル40からの交番電力を直流電力に変換する全波整流回路61と、2次電池23の充電状態を検知する制御部62とを含む。またこの他に、2次側回路60は、1次側回路50と2次側回路60とのインピーダンスの整合をとるコンデンサC4と、全波整流回路61からの直流電力を平滑するコンデンサC5とを含む。 The mobile phone 20 as a power receiving device is provided with a secondary circuit 60 that converts alternating power into DC power. The secondary circuit 60 includes a secondary coil 40 that receives the magnetic flux generated by the primary coil 30, a full-wave rectifier circuit 61 that converts alternating power from the secondary coil 40 into DC power, and a secondary battery. 23, and a control unit 62 that detects the state of charge. In addition, the secondary side circuit 60 includes a capacitor C4 for matching impedance between the primary side circuit 50 and the secondary side circuit 60, and a capacitor C5 for smoothing DC power from the full-wave rectifier circuit 61. Including.
 全波整流回路61は、第5~第8ダイオードD5~D8を含む。全波整流回路61の入力端子P1および出力端子P2には、コンデンサC5が並列に接続されている。 The full-wave rectifier circuit 61 includes fifth to eighth diodes D5 to D8. A capacitor C5 is connected in parallel to the input terminal P1 and the output terminal P2 of the full-wave rectifier circuit 61.
 送電装置10および携帯電話20の給電処理について説明する。 The power supply processing of the power transmission device 10 and the mobile phone 20 will be described.
 制御部53は、各ゲート抵抗R1~R4を介して制御電圧(ゲート電圧)を各スイッチング素子F1~F4に印加することで、各素子F1~F4のオンおよびオフを切り替える。第1及び第4スイッチング素子F1,F4と、第2及び第3スイッチング素子F2,F3とは交互にオンオフされる。これにより、1次側コイル30に交番電力が誘起されるため、1次側コイル30に高周波の交番磁束が発生する。 The control unit 53 switches on and off each of the elements F1 to F4 by applying a control voltage (gate voltage) to each of the switching elements F1 to F4 via the gate resistors R1 to R4. The first and fourth switching elements F1, F4 and the second and third switching elements F2, F3 are alternately turned on and off. As a result, since alternating power is induced in the primary side coil 30, high frequency alternating magnetic flux is generated in the primary side coil 30.
 2次側コイル40は、1次側コイル30の交番磁束を受けて交番電力を発生する。この2次側コイル40の交番電力は、コンデンサC4を介して全波整流回路61に供給されることにより直流電力に変換される。そして、コンデンサC5により平滑化された直流電力が2次電池23に供給されることにより2次電池23が充電される。 The secondary side coil 40 receives the alternating magnetic flux of the primary side coil 30 and generates alternating power. The alternating power of the secondary coil 40 is converted to DC power by being supplied to the full-wave rectifier circuit 61 via the capacitor C4. The secondary battery 23 is charged by supplying the DC power smoothed by the capacitor C5 to the secondary battery 23.
 送電装置10により行われる制御の概要について説明する。 An outline of control performed by the power transmission device 10 will be described.
 送電装置10の制御部53は、送電装置10のハウジング11に受電装置が載せられているか否かを判定するための「認証制御」と、受電装置から送信される電池情報に基づいて1次側コイル30の使用形態(以下、「コイル使用形態」)を変更する「コイル選択制御」とを行う。またこの他に、制御部53は、受電装置における2次電池の充電中において1次側コイル30に供給する電流の周波数を調整する「充電時周波数制御」と、送電装置10による受電装置への充電を停止するための「充電停止制御」とを行う。 The control unit 53 of the power transmission device 10 performs primary authentication based on “authentication control” for determining whether or not the power reception device is mounted on the housing 11 of the power transmission device 10 and battery information transmitted from the power reception device. “Coil selection control” for changing the usage pattern of the coil 30 (hereinafter “coil usage pattern”) is performed. In addition to this, the control unit 53 adjusts the frequency of the current supplied to the primary coil 30 during the charging of the secondary battery in the power receiving device, and controls the frequency during charging to the power receiving device by the power transmitting device 10. “Charge stop control” is performed to stop charging.
 コイル使用形態の選択には以下のものが含まれる。
(A)受電装置における2次電池の充電のためにコイル31~33のうちのいずれか1つを選択すること。
(B)受電装置における2次電池の充電のためにコイル31~33のうちのいずれか2つ以上を選択すること。
The selection of the coil usage pattern includes the following.
(A) Selecting one of the coils 31 to 33 for charging the secondary battery in the power receiving device.
(B) Selecting any two or more of the coils 31 to 33 for charging the secondary battery in the power receiving device.
 即ち、送電装置10により選択可能なコイル使用形態には、以下の第1~第3単独形態と第1~第4複合形態とが含まれる。なお、各使用形態において使用されないコイルは非通電状態に保持される。
(A)第1単独形態では、第1コイル31に通電する。
(B)第2単独形態では、第2コイル32に通電する。
(C)第3単独形態では、第3コイル33に通電する。
(D)第1複合形態では、第2コイル32および第3コイル33に通電する。
(E)第2複合形態では、第1コイル31および第3コイル33に通電する。
(F)第3複合形態では、第1コイル31および第2コイル32に通電する。
(G)第4複合形態では、第1~第3コイル31~33の全部に通電する。
That is, the coil usage modes that can be selected by the power transmission device 10 include the following first to third single modes and first to fourth combined modes. In addition, the coil which is not used in each usage form is hold | maintained at a non-energized state.
(A) In the first single mode, the first coil 31 is energized.
(B) In the second single mode, the second coil 32 is energized.
(C) In the third single mode, the third coil 33 is energized.
(D) In the first combined form, the second coil 32 and the third coil 33 are energized.
(E) In the second composite form, the first coil 31 and the third coil 33 are energized.
(F) In the third composite mode, the first coil 31 and the second coil 32 are energized.
(G) In the fourth composite form, all of the first to third coils 31 to 33 are energized.
 また、2次電池23の電池情報としては、第1~第3単独形態にそれぞれ対応した「電池情報BA1」、「電池情報BA2」、および「電池情報BA3」と、第1~第4複合形態にそれぞれ対応した「電池情報BB1」、「電池情報BB2」、「電池情報BB3」、および「電池情報BB4」とが用意されている。各電池情報には、2次電池23の電池材料、定格電圧、および電池容量が含まれている。 The battery information of the secondary battery 23 includes “battery information BA1”, “battery information BA2”, and “battery information BA3” corresponding to the first to third individual forms, and the first to fourth composite forms. “Battery information BB1”, “Battery information BB2”, “Battery information BB3”, and “Battery information BB4” are prepared. Each battery information includes the battery material, rated voltage, and battery capacity of the secondary battery 23.
 電池情報BA1は、受電装置の2次電池23が第1単独形態での充電に適したものであることを示す。電池情報BA2は、受電装置の2次電池23が第2単独形態での充電に適したものであることを示す。電池情報BA3は、受電装置の2次電池23が第3単独形態での充電に適したものであることを示す。 Battery information BA1 indicates that the secondary battery 23 of the power receiving apparatus is suitable for charging in the first single form. The battery information BA2 indicates that the secondary battery 23 of the power receiving apparatus is suitable for charging in the second single form. The battery information BA3 indicates that the secondary battery 23 of the power receiving apparatus is suitable for charging in the third single form.
 電池情報BB1は、受電装置の2次電池23が第1複合形態での充電に適したものであることを示す。電池情報BB2は、受電装置の2次電池23が第2複合形態での充電に適したものであることを示す。電池情報BB3は、受電装置の2次電池23が第3複合形態での充電に適したものであることを示す。電池情報BB4は、受電装置の2次電池23が第4複合形態での充電に適したものであることを示す。 Battery information BB1 indicates that the secondary battery 23 of the power receiving apparatus is suitable for charging in the first composite form. The battery information BB2 indicates that the secondary battery 23 of the power receiving device is suitable for charging in the second composite form. The battery information BB3 indicates that the secondary battery 23 of the power receiving apparatus is suitable for charging in the third composite form. The battery information BB4 indicates that the secondary battery 23 of the power receiving device is suitable for charging in the fourth composite form.
 送電装置10の制御部53には、受電装置から送信された電池情報を照合するため、電池情報BA1~BA3および電池情報BB1~BB4が予め記憶されている。また、受電装置の制御部62には、同受電装置の2次電池23に応じて電池情報BA1~BA3および電池情報BB1~BB4のいずれかが記憶されている。 In the control unit 53 of the power transmission apparatus 10, battery information BA1 to BA3 and battery information BB1 to BB4 are stored in advance in order to collate battery information transmitted from the power receiving apparatus. Further, the control unit 62 of the power receiving apparatus stores any one of the battery information BA1 to BA3 and the battery information BB1 to BB4 according to the secondary battery 23 of the power receiving apparatus.
 送電装置10に受電装置が載せられているか否かを判定するための認証制御は次のように行われる。 Authentication control for determining whether or not a power receiving device is mounted on the power transmitting device 10 is performed as follows.
 送電装置10の制御部53は、1次側コイル30から携帯電話20に応答要求信号KAを送信するための制御を所定時間毎に繰り返し行う。応答要求信号KAの送信には、コイル31~33のうちの少なくとも1つが用いられる。 The control unit 53 of the power transmission apparatus 10 repeatedly performs control for transmitting the response request signal KA from the primary coil 30 to the mobile phone 20 at predetermined time intervals. At least one of the coils 31 to 33 is used for transmission of the response request signal KA.
 送電装置10に携帯電話20が載せられているとき、1次側コイル30から送信された応答要求信号KAが携帯電話20において2次側コイル40を介して制御部62により受信される。制御部62は、送電装置10からの応答要求信号KAを受信したとき、2次側コイル40から応答確認信号KBおよび電池情報信号KCを送信するための制御を行う。電池情報信号KCには、上記した携帯電話20の電池情報が含まれている。 When the mobile phone 20 is mounted on the power transmission device 10, the response request signal KA transmitted from the primary coil 30 is received by the control unit 62 via the secondary coil 40 in the mobile phone 20. When receiving the response request signal KA from the power transmission device 10, the control unit 62 performs control for transmitting the response confirmation signal KB and the battery information signal KC from the secondary coil 40. The battery information signal KC includes the battery information of the mobile phone 20 described above.
 送電装置10の制御部53は、携帯電話20から応答確認信号KBを受信したとき、携帯電話20がハウジング11に載せられている旨判定し、携帯電話20の認証が成立した旨のフラグ(以下、「認証完了フラグFK」)をオンに設定する。そして、認証完了フラグFKがオンに設定されている状態において携帯電話20からの応答確認信号KBが一定期間以上にわたり受信できないとき、制御部53は、認証完了フラグFKをオフに設定する。 When the control unit 53 of the power transmission device 10 receives the response confirmation signal KB from the mobile phone 20, the control unit 53 determines that the mobile phone 20 is placed on the housing 11, and a flag indicating that the authentication of the mobile phone 20 has been established (hereinafter, “ , “Authentication completion flag FK”). Then, in a state where the authentication completion flag FK is set to ON, when the response confirmation signal KB from the mobile phone 20 cannot be received for a certain period or longer, the control unit 53 sets the authentication completion flag FK to OFF.
 コイル選択制御は次のように行われる。 Coil selection control is performed as follows.
 送電装置10の制御部53は、携帯電話20から電池情報信号KCを受信したとき、この電池情報信号KCに含まれる電池情報を予め記憶されている電池情報と照合し、電池情報信号KCから得られた電池情報の内容を確認する。そして、制御部53は、得られた電池情報の内容に応じて、上記した複数のコイル使用形態の中から1つを選択する。 When receiving the battery information signal KC from the mobile phone 20, the control unit 53 of the power transmission device 10 collates the battery information included in the battery information signal KC with the battery information stored in advance, and obtains the battery information signal KC from the battery information signal KC. Check the battery information. And the control part 53 selects one from the above-mentioned several coil usage form according to the content of the obtained battery information.
 充電時周波数制御は次のように行われる。 The frequency control during charging is performed as follows.
 携帯電話20の制御部62は、2次側回路60で生成された直流電流の電流値(以下、「充電電流値AX」)が2次電池23の充電に適した範囲内の大きさか否かを判定する。そして、制御部62は、充電電流値AXが充電に適していない旨の判定をしたとき、2次側コイル40から送電装置10に出力要求信号KRを送信するための制御を行う。出力要求信号KRには、充電電流値AXの情報が含まれる。 The control unit 62 of the mobile phone 20 determines whether or not the current value of the direct current generated by the secondary circuit 60 (hereinafter, “charging current value AX”) is within a range suitable for charging the secondary battery 23. Determine. And the control part 62 performs control for transmitting the output request signal KR from the secondary side coil 40 to the power transmission apparatus 10, when it determines with the charging current value AX not being suitable for charge. The output request signal KR includes information on the charging current value AX.
 送電装置10の制御部53は、1次側コイル30へ電流を供給することにより携帯電話20を充電する。このとき、制御部53は、1次側コイル30へ供給する電流の周波数を共振回路52の共振周波数に設定する。また、制御部53は、携帯電話20から出力要求信号KRを受信したとき、充電電流値AXに基づいて1次側コイル30に供給する電流の周波数を調整する。 The control unit 53 of the power transmission apparatus 10 charges the mobile phone 20 by supplying current to the primary coil 30. At this time, the control unit 53 sets the frequency of the current supplied to the primary side coil 30 to the resonance frequency of the resonance circuit 52. Further, when receiving the output request signal KR from the mobile phone 20, the control unit 53 adjusts the frequency of the current supplied to the primary coil 30 based on the charging current value AX.
 充電停止制御は次のように行われる。 The charge stop control is performed as follows.
 携帯電話20の制御部62は、2次電池23の充電状態が満充電状態のとき、2次側コイル40から送電装置10へ充電停止信号KSを送信するための制御を行う。充電停止信号KSは、2次電池23の充電終了の要求を示す信号である。 The control unit 62 of the mobile phone 20 performs control for transmitting a charge stop signal KS from the secondary coil 40 to the power transmission device 10 when the charging state of the secondary battery 23 is a full charge state. The charge stop signal KS is a signal indicating a request to end charging of the secondary battery 23.
 送電装置10の制御部53は、携帯電話20から充電停止信号KSを受信したとき、1次側コイル30への通電を停止する。すなわち、送電装置10による携帯電話20の充電を終了する。なお、上記の認証制御、コイル選択制御、および充電停止制御は、受電装置として携帯電話20以外のものが用いられる場合にも同様に行われる。 The control unit 53 of the power transmission device 10 stops energization of the primary coil 30 when receiving the charge stop signal KS from the mobile phone 20. That is, the charging of the mobile phone 20 by the power transmission device 10 is terminated. The authentication control, the coil selection control, and the charge stop control are performed in the same manner when a power receiving device other than the mobile phone 20 is used.
 図3および図4を参照して、コイル選択制御の処理手順について説明する。なお、以下のコイル選択制御の説明において、符号が付された各構成要素については図2に記載されたものを示している。 Referring to FIG. 3 and FIG. 4, the processing procedure of coil selection control will be described. In the following description of the coil selection control, the constituent elements denoted by the reference numerals are those shown in FIG.
 送電装置10の制御部53は、コイル選択制御によりコイル使用形態を選択した後、認証完了フラグFKをオフに設定するまでの間、または携帯電話20から充電停止信号KSを受信するまでの間、選択したコイル使用形態を維持して携帯電話20の充電を行う。 The control unit 53 of the power transmission device 10 selects the coil usage pattern by coil selection control and then sets the authentication completion flag FK to OFF or until the charging stop signal KS is received from the mobile phone 20. The mobile phone 20 is charged while maintaining the selected coil usage pattern.
 コイル選択制御では、送電装置10の制御部53は、携帯電話20から取得した電池情報が電池情報BA1~BA3および電池情報BB1~BB4のいずれに該当するかを判定するため、ステップS101~S106の少なくとも1つの判定処理を行う。 In the coil selection control, the control unit 53 of the power transmission device 10 determines whether the battery information acquired from the mobile phone 20 corresponds to the battery information BA1 to BA3 or the battery information BB1 to BB4. At least one determination process is performed.
 ステップS101においては、制御部53は、携帯電話20から取得した電池情報が電池情報BB1~BB4のいずれかに該当するか否かを判定する。取得した電池情報が電池情報BB1~BB4のいずれにも該当しないとき、処理はステップS102に移行する。一方、取得した電池情報が電池情報BB1~BB4のいずれかに該当するとき、処理はステップS104に移行する。 In step S101, the control unit 53 determines whether or not the battery information acquired from the mobile phone 20 corresponds to any of the battery information BB1 to BB4. When the acquired battery information does not correspond to any of the battery information BB1 to BB4, the process proceeds to step S102. On the other hand, when the acquired battery information corresponds to any of the battery information BB1 to BB4, the process proceeds to step S104.
 ステップS102においては、制御部53は、携帯電話20から取得した電池情報が電池情報BA3か否かを判定する。ステップS103においては、取得した電池情報が電池情報BA2か否かを判定する。 In step S102, the control unit 53 determines whether or not the battery information acquired from the mobile phone 20 is the battery information BA3. In step S103, it is determined whether or not the acquired battery information is battery information BA2.
 そして、制御部53は、ステップS102又はステップS103の判定結果に応じて以下の(A)~(C)のいずれかの処理を行う。 Then, the control unit 53 performs one of the following processes (A) to (C) according to the determination result of step S102 or step S103.
 (A)ステップS102の判定結果が肯定判定のとき、すなわち携帯電話20から取得した電池情報が電池情報BA3のとき、制御部53は、ステップS113においてコイル使用形態として第3単独形態を選択する。 (A) When the determination result in step S102 is affirmative, that is, when the battery information acquired from the mobile phone 20 is battery information BA3, the control unit 53 selects the third single form as the coil use form in step S113.
 (B)ステップS102の判定結果が否定判定であり、かつステップS103の判定結果が肯定判定のとき、すなわち携帯電話20から取得した電池情報が電池情報BA2のとき、制御部53は、ステップS112においてコイル使用形態として第2単独形態を選択する。 (B) When the determination result in step S102 is negative and the determination result in step S103 is affirmative, that is, when the battery information acquired from the mobile phone 20 is battery information BA2, the controller 53 determines in step S112. The second single mode is selected as the coil usage mode.
 (C)ステップS102およびステップS103の判定結果が否定判定のとき、すなわち携帯電話20から取得した電池情報が電池情報BA1のとき、制御部53は、ステップS111においてコイル使用形態として第1単独形態を選択する。 (C) When the determination results in steps S102 and S103 are negative, that is, when the battery information acquired from the mobile phone 20 is battery information BA1, the control unit 53 sets the first single form as the coil use form in step S111. select.
 ステップS104においては、制御部53は、携帯電話20から取得した電池情報が電池情報BB1か否かを判定する。ステップS105においては、制御部53は、取得した電池情報が電池情報BB2か否かを判定する。ステップS106においては、制御部53は、取得した電池情報が電池情報BB3か否かを判定する。 In step S104, the control unit 53 determines whether or not the battery information acquired from the mobile phone 20 is the battery information BB1. In step S105, control unit 53 determines whether or not the acquired battery information is battery information BB2. In step S106, control unit 53 determines whether or not the acquired battery information is battery information BB3.
 そして、制御部53は、ステップS104、ステップS105、又はステップS106の判定結果に応じて以下の(A)~(D)のいずれかの処理を行う。 Then, the control unit 53 performs any of the following processes (A) to (D) according to the determination result of step S104, step S105, or step S106.
 (A)ステップS104の判定結果が肯定判定のとき、すなわち携帯電話20から取得した電池情報が電池情報BB1のとき、制御部53は、ステップS117においてコイル使用形態として第1複合形態を選択する。 (A) When the determination result of step S104 is affirmative, that is, when the battery information acquired from the mobile phone 20 is the battery information BB1, the control unit 53 selects the first combined form as the coil usage form in step S117.
 (B)ステップS104の判定結果が否定判定であり、かつステップS105の判定結果が肯定判定のとき、すなわち携帯電話20から取得した電池情報が電池情報BB2のとき、制御部53は、ステップS116においてコイル使用形態として第2複合形態を選択する。 (B) When the determination result of step S104 is negative and the determination result of step S105 is affirmative, that is, when the battery information acquired from the mobile phone 20 is battery information BB2, the control unit 53 determines in step S116. The second composite form is selected as the coil use form.
 (C)ステップS104およびステップS105の判定結果が否定判定であり、かつステップS106の判定結果が肯定判定のとき、すなわち携帯電話20から取得した電池情報が電池情報BB3のとき、制御部53は、ステップS115においてコイル使用形態として第3複合形態を選択する。 (C) When the determination results of steps S104 and S105 are negative and the determination result of step S106 is affirmative, that is, when the battery information acquired from the mobile phone 20 is battery information BB3, the control unit 53 In step S115, the third composite form is selected as the coil use form.
 (D)ステップS104~S106の判定結果が否定判定のとき、すなわち携帯電話20から取得した電池情報が電池情報BB4のとき、制御部53は、ステップS114においてコイル使用形態として第4複合形態を選択する。 (D) When the determination result of steps S104 to S106 is negative, that is, when the battery information acquired from the mobile phone 20 is the battery information BB4, the control unit 53 selects the fourth composite form as the coil use form in step S114. To do.
 図5を参照して、コイル選択制御の一実行例について説明する。なお、以下のコイル選択制御の説明において、符号が付された各構成要素については図2に記載されたものを示している。 Referring to FIG. 5, an example of execution of coil selection control will be described. In the following description of the coil selection control, the constituent elements denoted by the reference numerals are those shown in FIG.
 時刻t11において、携帯電話20の制御部62から送信された応答確認信号KBと電池情報BA3を含む電池情報信号KCとが送電装置10の制御部53により受信される。このとき、制御部53は、コイル使用形態として第3単独形態を選択し、第3コイル33の通電を開始する。 At time t11, the response confirmation signal KB transmitted from the control unit 62 of the mobile phone 20 and the battery information signal KC including the battery information BA3 are received by the control unit 53 of the power transmission device 10. At this time, the control unit 53 selects the third single form as the coil use form and starts energization of the third coil 33.
 時刻t12において、携帯電話20の制御部62から送信された充電停止信号KSが送電装置10の制御部53により受信されると、制御部53は、第3コイル33の通電を停止する。すなわち、携帯電話20の充電が停止される。 At time t <b> 12, when the charging stop signal KS transmitted from the control unit 62 of the mobile phone 20 is received by the control unit 53 of the power transmission device 10, the control unit 53 stops energization of the third coil 33. That is, charging of the mobile phone 20 is stopped.
 時刻t13において、携帯電話20の制御部62から送信された応答確認信号KBと電池情報BA2を含む電池情報信号KCとが送電装置10の制御部53により受信される。このとき、制御部53は、コイル使用形態として第2単独形態を選択し、第2コイル32の通電を開始する。 At time t13, the response confirmation signal KB transmitted from the control unit 62 of the mobile phone 20 and the battery information signal KC including the battery information BA2 are received by the control unit 53 of the power transmission device 10. At this time, the control unit 53 selects the second single form as the coil use form and starts energization of the second coil 32.
 時刻t14において、携帯電話20の制御部62から送信された充電停止信号KSが送電装置10の制御部53により受信されると、制御部53は、第2コイル32の通電を停止する。すなわち、携帯電話20の充電が停止される。 At time t <b> 14, when the charging stop signal KS transmitted from the control unit 62 of the mobile phone 20 is received by the control unit 53 of the power transmission device 10, the control unit 53 stops energization of the second coil 32. That is, charging of the mobile phone 20 is stopped.
 時刻t15において、携帯電話20の制御部62から送信された応答確認信号KBと電池情報BA1を含む電池情報信号KCとが送電装置10の制御部53により受信される。このとき、制御部53は、コイル使用形態として第1単独形態を選択し、第1コイル31の通電を開始する。 At time t15, the response confirmation signal KB transmitted from the control unit 62 of the mobile phone 20 and the battery information signal KC including the battery information BA1 are received by the control unit 53 of the power transmitting apparatus 10. At this time, the control unit 53 selects the first single form as the coil use form, and starts energization of the first coil 31.
 時刻t16において、携帯電話20の制御部62から送信された充電停止信号KSが送電装置10の制御部53により受信されると、制御部53は、第1コイル31の通電を停止する。すなわち、携帯電話20の充電が停止される。 At time t <b> 16, when the charging stop signal KS transmitted from the control unit 62 of the mobile phone 20 is received by the control unit 53 of the power transmission device 10, the control unit 53 stops energization of the first coil 31. That is, charging of the mobile phone 20 is stopped.
 第1実施形態の非接触式給電装置1によれば、以下の効果が得られる。 According to the contactless power supply device 1 of the first embodiment, the following effects can be obtained.
 (1)非接触式給電装置1は、2次電池23の電池情報に基づいて1次側コイル30(第1~第3のコイル31~33)の使用形態を選択する。この構成によれば、選択したコイル使用形態による2次電池23の充電中において充電電流値AXが2次電池23の充電に適した範囲内のとき、1次側コイル30に供給される電流の周波数が共振周波数に維持される。このため、より高い充電効率で受電装置の充電を行うことができる。 (1) The non-contact power feeding device 1 selects the usage mode of the primary side coil 30 (first to third coils 31 to 33) based on the battery information of the secondary battery 23. According to this configuration, when the charging current value AX is within a range suitable for charging the secondary battery 23 during charging of the secondary battery 23 according to the selected coil usage pattern, the current supplied to the primary coil 30 is The frequency is maintained at the resonant frequency. For this reason, the power receiving apparatus can be charged with higher charging efficiency.
 (2)非接触式給電装置1との比較例として、1次側コイルが単一のコイルにより構成される給電装置が挙げられる。この比較例の給電装置は、充電電流値が受電装置における2次電池の充電に適していない場合には、1次側コイルへ供給する電流の周波数を変更することのみにより充電電流値の調整を行う。このため、調整後の電流の周波数が共振周波数から大きく乖離するおそれがある。 (2) As a comparative example with the non-contact type power feeding device 1, a power feeding device in which the primary side coil is constituted by a single coil can be mentioned. In this comparative example, when the charging current value is not suitable for charging the secondary battery in the power receiving device, the charging current value is adjusted only by changing the frequency of the current supplied to the primary coil. Do. For this reason, there is a possibility that the frequency of the current after adjustment greatly deviates from the resonance frequency.
 これに対して、第1実施形態の非接触式給電装置1は、受電装置に搭載された2次電池23の電池情報に適したコイル使用形態を選択する。そのうえで給電装置1は、充電電流値AXの調整の必要があるときに1次側コイル30の電流の周波数を調整する。このため、1次側コイル30の電流の周波数を調整した場合において、上記比較例の非接触式給電装置と比較して、調整後の電流の周波数と共振周波数との乖離度合いを小さくすることができる。すなわち、電流の周波数の調整に起因して充電効率が大きく低下することを抑制することができる。 On the other hand, the non-contact power feeding device 1 of the first embodiment selects a coil usage mode suitable for the battery information of the secondary battery 23 mounted on the power receiving device. In addition, the power feeding device 1 adjusts the frequency of the current of the primary coil 30 when the charging current value AX needs to be adjusted. For this reason, when the frequency of the current of the primary coil 30 is adjusted, the degree of deviation between the adjusted frequency of the current and the resonance frequency can be reduced as compared with the non-contact power feeding device of the comparative example. it can. That is, it is possible to suppress a significant decrease in charging efficiency due to the adjustment of the current frequency.
 (3)非接触式給電装置1においては、図1に示されるように、第3コイル33の内周側に第2コイル32が設けられ、第2コイル32の内周側に第1コイル31が設けられている。この構成によれば、第3コイル33の外周側に第1コイル31および第2コイル32が設けられる場合と比較して、コイル使用形態として第1~第4複合形態のいずれかが選択されたときに、コイル31~33の磁束が互いに打ち消しあうことを抑制することができる。 (3) In the non-contact power supply device 1, as shown in FIG. 1, the second coil 32 is provided on the inner peripheral side of the third coil 33, and the first coil 31 is provided on the inner peripheral side of the second coil 32. Is provided. According to this configuration, as compared with the case where the first coil 31 and the second coil 32 are provided on the outer peripheral side of the third coil 33, one of the first to fourth composite forms is selected as the coil use form. Sometimes, the magnetic fluxes of the coils 31 to 33 can be prevented from canceling each other.
 (4)非接触式給電装置1においては、第1コイル31、第2コイル32、および第3コイル33が同軸上に設けられている。この構成によれば、1次側コイル30と2次側コイル40との間の磁束が互いに打ち消しあうことを抑制する効果を高めることができる。 (4) In the non-contact power supply device 1, the first coil 31, the second coil 32, and the third coil 33 are provided on the same axis. According to this structure, the effect which suppresses that the magnetic flux between the primary side coil 30 and the secondary side coil 40 mutually cancels can be heightened.
 (第2実施形態)
 図2、図6、および図7を参照して、第2実施形態の非接触式給電装置1について説明する。なお、第2実施形態の非接触式給電装置1は、第1実施形態の非接触式給電装置1におけるコイル選択制御の一部を変更することで構成されている。このため、以下では第1実施形態の非接触式給電装置1と異なる点の詳細を説明し、第1実施形態の非接触式給電装置1と共通する構成については同一符号を付しその説明の一部または全部を省略する。
(Second Embodiment)
With reference to FIG. 2, FIG. 6, and FIG. 7, the non-contact-type electric power feeder 1 of 2nd Embodiment is demonstrated. In addition, the non-contact type electric power feeder 1 of 2nd Embodiment is comprised by changing a part of coil selection control in the non-contact type electric power feeder 1 of 1st Embodiment. For this reason, below, the detail of a different point from the non-contact-type electric power feeder 1 of 1st Embodiment is demonstrated, and the same code | symbol is attached | subjected about the structure which is common in the non-contact-type electric power feeder 1 of 1st Embodiment, and the description Some or all of them are omitted.
 第2実施形態の送電装置10は、図2に示される構成と同様に構成されている。第2実施形態の送電装置10は、電池情報に代えて(又はそれに加えて)、2次電池23の充電中において携帯電話20から送信される充電情報に応じてコイル使用形態を変更するコイル選択制御を行う。この第2実施形態によるコイル選択制御を「充電時変更制御」という。なお、コイル選択制御以外の制御については第1実施形態の送電装置10と同様に行われる。 The power transmission device 10 of the second embodiment is configured similarly to the configuration shown in FIG. The power transmission device 10 of the second embodiment replaces (or in addition to) the battery information with a coil selection that changes the coil usage according to the charging information transmitted from the mobile phone 20 while the secondary battery 23 is being charged. Take control. The coil selection control according to the second embodiment is referred to as “charging change control”. Control other than coil selection control is performed in the same manner as the power transmission device 10 of the first embodiment.
 第2実施形態では、2次電池23の充電状態は、「第1充電状態」、「第2充電状態」、「第3充電状態」、および「満充電状態」の4つに区分される。第1充電状態は、充電量が「0%」から第1閾値X1未満までの範囲に含まれる状態を示す。第2充電状態は、充電量が第1閾値X1から第2閾値X2未満までの範囲に含まれる状態を示す。第3充電状態は、充電量が第2閾値X2から満充電未満までの範囲に含まれる状態を示す。なお、第2閾値X2は第1閾値X1よりも大きい値として予め設定されている。 In the second embodiment, the state of charge of the secondary battery 23 is divided into four parts: “first charge state”, “second charge state”, “third charge state”, and “full charge state”. The first charge state indicates a state where the charge amount is included in a range from “0%” to less than the first threshold value X1. The second charging state indicates a state where the charging amount is included in a range from the first threshold value X1 to less than the second threshold value X2. The third charge state indicates a state where the charge amount is included in the range from the second threshold value X2 to less than full charge. The second threshold value X2 is set in advance as a value larger than the first threshold value X1.
 2次電池23の充電情報としては、第1充電状態を示す充電情報CA、第2充電状態を示す充電情報CB、および第3充電状態を示す充電情報CCが用意されている。各充電情報は、携帯電話20の制御部62に予め記憶されている。 As the charging information of the secondary battery 23, charging information CA indicating the first charging state, charging information CB indicating the second charging state, and charging information CC indicating the third charging state are prepared. Each charging information is stored in advance in the control unit 62 of the mobile phone 20.
 第2実施形態の送電装置10による受電装置の認証制御を、第1実施形態からの変更点を中心に以下に説明する。 Authenticating control of the power receiving device by the power transmitting device 10 of the second embodiment will be described below with a focus on changes from the first embodiment.
 携帯電話20の制御部62は、送電装置10からの応答要求信号KAを受信したとき、2次側コイル40から応答確認信号KBおよび充電情報信号KDを送信するための制御を行う。充電情報信号KDには、制御部62により検出された2次電池23の充電状態を示す充電情報が含まれている。 When receiving the response request signal KA from the power transmission device 10, the control unit 62 of the mobile phone 20 performs control for transmitting the response confirmation signal KB and the charging information signal KD from the secondary coil 40. The charging information signal KD includes charging information indicating the charging state of the secondary battery 23 detected by the control unit 62.
 充電時変更制御は次のように行われる。 The change control during charging is performed as follows.
 携帯電話20の制御部62は、応答要求信号KAを送電装置10から受信したとき、又は2次電池23の充電状態が変化したとき、充電情報を含む充電情報信号KDを送電装置10に送信する。送電装置10の制御部53は、携帯電話20からの充電情報信号KDに含まれる充電情報を予め記憶されている充電情報と照合し、充電情報信号KDから得た充電情報の内容を確認する。そして、取得した充電情報の内容に応じて複数のコイル使用形態のなかから1つの使用形態を選択する。 When the response request signal KA is received from the power transmission device 10 or when the charging state of the secondary battery 23 changes, the control unit 62 of the mobile phone 20 transmits a charging information signal KD including charging information to the power transmission device 10. . The control unit 53 of the power transmission device 10 collates the charging information included in the charging information signal KD from the mobile phone 20 with the charging information stored in advance, and confirms the content of the charging information obtained from the charging information signal KD. Then, one usage pattern is selected from a plurality of coil usage patterns according to the contents of the acquired charging information.
 図6を参照して、充電時変更制御の処理手順について説明する。なお、以下の充電時変更制御の説明において、符号が付された各構成要素については図2に記載されたものを示している。 Referring to FIG. 6, the processing procedure of the change control at the time of charging will be described. In the following description of the change control at the time of charging, the components denoted by the reference numerals are those shown in FIG.
 送電装置10の制御部53は、認証完了フラグFKをオンに設定した後、認証完了フラグFKをオフに設定するまでの間、または携帯電話20から充電停止信号KSを受信するまでの間、または充電情報信号KDを受信するまでの間、選択したコイル使用形態を維持して携帯電話20の充電を行う。 The control unit 53 of the power transmission device 10 sets the authentication completion flag FK to on and then sets the authentication completion flag FK to off, or until the charging stop signal KS is received from the mobile phone 20, or Until the charging information signal KD is received, the mobile phone 20 is charged while maintaining the selected coil usage pattern.
 充電時変更制御では、送電装置10の制御部53は、携帯電話20から取得した充電情報が充電情報CA~CCのいずれに該当するかを判定するため、ステップS201およびS202の少なくとも1つの判定処理を行う。 In the change control at the time of charging, the control unit 53 of the power transmission apparatus 10 determines at least one of the determination information in steps S201 and S202 in order to determine which of the charging information CA to CC the charging information acquired from the mobile phone 20 corresponds to. I do.
 ステップS201においては、制御部53は、携帯電話20から取得した充電情報が充電情報CAか否かを判定する。ステップS202においては、制御部53は、携帯電話20から取得した充電情報が充電情報CBか否かを判定する。 In step S201, the control unit 53 determines whether or not the charging information acquired from the mobile phone 20 is the charging information CA. In step S202, control unit 53 determines whether or not the charging information acquired from mobile phone 20 is charging information CB.
 そして、制御部53は、ステップS201又はステップS202の判定結果に応じて以下の(A)~(C)のいずれかの処理を行う。 Then, the control unit 53 performs one of the following processes (A) to (C) according to the determination result of step S201 or step S202.
 (A)ステップS201の判定結果が肯定判定のとき、すなわち携帯電話20から取得した充電情報が充電情報CAのとき、制御部53は、ステップS213においてコイル使用形態として第1単独形態を選択する。 (A) When the determination result in step S201 is affirmative, that is, when the charging information acquired from the mobile phone 20 is charging information CA, the control unit 53 selects the first single mode as the coil usage mode in step S213.
 (B)ステップS201の判定結果が否定判定であり、かつステップS202の判定結果が肯定判定のとき、すなわち携帯電話20から取得した充電情報が充電情報CBのとき、制御部53は、ステップS212においてコイル使用形態として第2単独形態を選択する。 (B) When the determination result in step S201 is negative and the determination result in step S202 is affirmative, that is, when the charging information acquired from the mobile phone 20 is charging information CB, the control unit 53 determines in step S212. The second single mode is selected as the coil usage mode.
 (C)ステップS201およびステップS202の判定結果が否定判定のとき、すなわち携帯電話20から取得した充電情報が充電情報CCのとき、制御部53は、ステップS211においてコイル使用形態として第3単独形態を選択する。 (C) When the determination results in steps S201 and S202 are negative, that is, when the charging information acquired from the mobile phone 20 is the charging information CC, the control unit 53 sets the third single mode as the coil usage mode in step S211. select.
 図7を参照して、充電時変更制御の一実行例について説明する。なお、以下の充電時変更制御の説明において、符号が付された各構成要素については図2に記載されたものを示している。 Referring to FIG. 7, an example of execution of the change control during charging will be described. In the following description of the change control at the time of charging, the components denoted by the reference numerals are those shown in FIG.
 時刻t21において、携帯電話20の制御部62から送信された応答確認信号KBと充電情報CAを含む充電情報信号KDとが送電装置10の制御部53により受信される。このとき、制御部53は、コイル使用形態として第1単独形態を選択し、第1コイル31の通電を開始する。 At time t21, the response confirmation signal KB transmitted from the control unit 62 of the mobile phone 20 and the charging information signal KD including the charging information CA are received by the control unit 53 of the power transmission device 10. At this time, the control unit 53 selects the first single form as the coil use form, and starts energization of the first coil 31.
 時刻t22において、2次電池23の充電状態が第1充電状態から第2充電状態に変化すると、携帯電話20の制御部62は充電情報CBを含む充電情報信号KDを送信する。この充電情報信号KD(充電情報CB)に応答して、送電装置10の制御部53は、コイル使用形態を第1単独形態から第2単独形態に変更し、第2コイル32の通電を開始する。 At time t22, when the charging state of the secondary battery 23 changes from the first charging state to the second charging state, the control unit 62 of the mobile phone 20 transmits a charging information signal KD including the charging information CB. In response to the charging information signal KD (charging information CB), the control unit 53 of the power transmission device 10 changes the coil usage mode from the first single mode to the second single mode, and starts energization of the second coil 32. .
 時刻t23において、2次電池23の充電状態が第2充電状態から第3充電状態に変化すると、携帯電話20の制御部62は充電情報CCを含む充電情報信号KDを送信する。この充電情報信号KD(充電情報CC)に応答して、送電装置10の制御部53は、コイル使用形態を第2単独形態から第3単独形態に変更し、第3コイル33の通電を開始する。 At time t23, when the charging state of the secondary battery 23 changes from the second charging state to the third charging state, the control unit 62 of the mobile phone 20 transmits a charging information signal KD including the charging information CC. In response to this charging information signal KD (charging information CC), the control unit 53 of the power transmission device 10 changes the coil usage mode from the second single mode to the third single mode, and starts energization of the third coil 33. .
 時刻t24において、2次電池23の充電状態が第3充電状態から満充電状態に変化すると、携帯電話20の制御部62は充電停止信号KSを送信する。そして、この充電停止信号KSに応答して、送電装置10の制御部53は、第3コイル33の通電を停止する。これにより、携帯電話20の充電が停止される。 At time t24, when the charging state of the secondary battery 23 changes from the third charging state to the fully charged state, the control unit 62 of the mobile phone 20 transmits a charging stop signal KS. In response to the charge stop signal KS, the control unit 53 of the power transmission device 10 stops energization of the third coil 33. Thereby, charging of the mobile phone 20 is stopped.
 第2実施形態の非接触式給電装置1によれば、以下の効果が得られる。 According to the contactless power supply device 1 of the second embodiment, the following effects can be obtained.
 (1)非接触式給電装置1は、2次電池23の充電情報に基づいて1次側コイル30(第1~第3のコイル31~33)の使用形態を選択する。この構成によれば、選択したコイル使用形態による2次電池23の充電中において充電電流値AXが2次電池23の充電に適した範囲内のとき、1次側コイル30に供給する電流の周波数が共振周波数に維持される。このため、より高い充電効率で受電装置の充電を行うことができる。 (1) The non-contact power feeding device 1 selects the usage mode of the primary side coil 30 (first to third coils 31 to 33) based on the charging information of the secondary battery 23. According to this configuration, the frequency of the current supplied to the primary coil 30 when the charging current value AX is within a range suitable for charging the secondary battery 23 during charging of the secondary battery 23 according to the selected coil usage pattern. Is maintained at the resonant frequency. For this reason, the power receiving apparatus can be charged with higher charging efficiency.
 (2)非接触式給電装置1は、受電装置に搭載された2次電池の充電状態に適したコイル使用形態を選択する。そのうえで給電装置1は、充電電流値AXの調整の必要があるときに1次側コイル30の電流の周波数を調整する。このため、1次側コイル30の電流の周波数を調整した場合において、1次側コイルが単一のコイルにより構成される比較例の非接触式給電装置と比較して、調整後の電流の周波数と共振周波数との乖離度合いを小さくすることができる。すなわち、電流の周波数の調整に起因して充電効率が大きく低下することを抑制することができる。 (2) The non-contact type power feeding device 1 selects a coil usage mode suitable for the charging state of the secondary battery mounted on the power receiving device. In addition, the power feeding device 1 adjusts the frequency of the current of the primary coil 30 when the charging current value AX needs to be adjusted. For this reason, when the frequency of the current of the primary side coil 30 is adjusted, the frequency of the current after adjustment is compared with the non-contact type power feeding device of the comparative example in which the primary side coil is configured by a single coil. The degree of deviation between the resonance frequency and the resonance frequency can be reduced. That is, it is possible to suppress a significant decrease in charging efficiency due to the adjustment of the current frequency.
 (第3実施形態)
 図2および図8を参照して、第3実施形態の非接触式給電装置1を説明する。なお、第3実施形態の非接触式給電装置1は、第1実施形態の非接触式給電装置1におけるコイル選択制御の一部を変更することで構成されている。このため、以下では第1実施形態の非接触式給電装置1と異なる点の詳細を説明し、第1実施形態の非接触式給電装置1と共通する構成については同一符号を付しその説明の一部または全部を省略する。
(Third embodiment)
With reference to FIG. 2 and FIG. 8, the non-contact-type electric power feeder 1 of 3rd Embodiment is demonstrated. In addition, the non-contact type electric power feeder 1 of 3rd Embodiment is comprised by changing a part of coil selection control in the non-contact type electric power feeder 1 of 1st Embodiment. For this reason, below, the detail of a different point from the non-contact-type electric power feeder 1 of 1st Embodiment is demonstrated, and the same code | symbol is attached | subjected about the structure which is common in the non-contact-type electric power feeder 1 of 1st Embodiment, and the description Some or all of them are omitted.
 第3実施形態の送電装置10は、図2に示される構成と同様に構成されている。上記第1実施形態の非接触式給電装置1は、電池情報に応じてコイル使用形態を選択している。これに対して、第3実施形態の非接触式給電装置1は、受電装置における2次電池の充電開始前に1次側コイル30に電流(テスト電流)を供給し、これにともない2次側回路60で得られる充電電流値AXの大きさに応じてコイル使用形態を選択する。 The power transmission device 10 of the third embodiment is configured similarly to the configuration shown in FIG. The non-contact power supply device 1 of the first embodiment selects a coil usage mode according to battery information. In contrast, the non-contact power supply device 1 of the third embodiment supplies a current (test current) to the primary coil 30 before starting charging of the secondary battery in the power receiving device, and the secondary side accordingly. The coil usage mode is selected according to the magnitude of the charging current value AX obtained by the circuit 60.
 第3実施形態のコイル選択制御を、第1実施形態からの変更点を中心に以下に説明する。 The coil selection control of the third embodiment will be described below with a focus on the changes from the first embodiment.
 送電装置10の制御部53は、1次側コイル30にテスト電流を供給して以下の第1~第3電流テストを行う。
(A)第1電流テストでは、第1コイル31にテスト電流を供給する。
(B)第2電流テストでは、第2コイル32にテスト電流を供給する。
(C)第3電流テストでは、第3コイル33にテスト電流を供給する。
The control unit 53 of the power transmission apparatus 10 supplies the test current to the primary coil 30 and performs the following first to third current tests.
(A) In the first current test, a test current is supplied to the first coil 31.
(B) In the second current test, a test current is supplied to the second coil 32.
(C) In the third current test, a test current is supplied to the third coil 33.
 携帯電話20の制御部62は、第1~第3電流テストの実行に基づいて以下の第1~第3電流値AX1~AX3をそれぞれ取得する。
(A)第1電流値AX1は、第1電流テストにより得られた充電電流値AXを示す。
(B)第2電流値AX2は、第2電流テストにより得られた充電電流値AXを示す。
(C)第3電流値AX3は、第3電流テストにより得られた充電電流値AXを示す。
The control unit 62 of the mobile phone 20 acquires the following first to third current values AX1 to AX3 based on the execution of the first to third current tests, respectively.
(A) The first current value AX1 indicates the charging current value AX obtained by the first current test.
(B) The second current value AX2 indicates the charging current value AX obtained by the second current test.
(C) The third current value AX3 indicates the charging current value AX obtained by the third current test.
 コイル選択制御は次のように行われる。 Coil selection control is performed as follows.
 送電装置10の制御部53は、認証完了フラグFKをオンに設定した後、電流テストを実行する。携帯電話20の制御部62は、電流テストにより得られた充電電流値AXを含む電流情報信号KEを送電装置10に送信する。 The control unit 53 of the power transmission apparatus 10 executes the current test after setting the authentication completion flag FK to ON. The control unit 62 of the mobile phone 20 transmits a current information signal KE including the charging current value AX obtained by the current test to the power transmission device 10.
 送電装置10の制御部53は、電流情報信号KEに含まれる充電電流値AXと要求電流値TXとを比較する。そして、充電電流値AXが要求電流値TX以上のときには、制御部53は、電流テストで通電したコイルを含むコイル使用形態を選択する。 The control unit 53 of the power transmission device 10 compares the charging current value AX included in the current information signal KE with the required current value TX. When the charging current value AX is equal to or greater than the required current value TX, the control unit 53 selects a coil usage pattern including a coil energized in the current test.
 要求電流値TXは、受電装置において2次電池の充電のために要求される最も小さい充電電流値AXを示す。制御部53には、各種の受電装置に対応する複数の要求電流値TXが予め記憶されている。 The required current value TX indicates the smallest charging current value AX required for charging the secondary battery in the power receiving device. The control unit 53 stores a plurality of required current values TX corresponding to various power receiving devices in advance.
 充電電流値AXが要求電流値TX未満の場合にも2次電池の充電を行うことはできる。しかしながら、例えば満充電状態に達するまでの充電時間が規定時間よりも長くなるおそれがある。なお、1次側コイル30に電流を供給したとき2次側回路60に生じる電流は「2次側誘導電流」の一例である。また、電流情報信号KEは「2次側応答要求信号」の一例である。 The secondary battery can be charged even when the charging current value AX is less than the required current value TX. However, for example, the charging time until the fully charged state may be longer than a specified time. The current generated in the secondary circuit 60 when a current is supplied to the primary coil 30 is an example of “secondary induced current”. The current information signal KE is an example of a “secondary side response request signal”.
 図8を参照して、第3実施形態によるコイル選択制御の処理手順を説明する。なお、以下のコイル選択制御の説明において、符号が付された各構成要素については図2に記載されたものを示している。 Referring to FIG. 8, the processing procedure of coil selection control according to the third embodiment will be described. In the following description of the coil selection control, the constituent elements denoted by the reference numerals are those shown in FIG.
 送電装置10の制御部53は、コイル選択制御によりコイル使用形態を選択した後、認証完了フラグFKをオフに設定するまでの間、または携帯電話20から充電停止信号KSを受信するまでの間、選択したコイル使用形態を維持して携帯電話20の充電を行う。 The control unit 53 of the power transmission device 10 selects the coil usage pattern by coil selection control and then sets the authentication completion flag FK to OFF or until the charging stop signal KS is received from the mobile phone 20. The mobile phone 20 is charged while maintaining the selected coil usage pattern.
 コイル選択制御では、送電装置10の制御部53は、携帯電話20から取得した充電電流値AXが要求電流値TX以上か否かを判定するため、ステップS301~S303の少なくとも1つの判定処理を行う。 In the coil selection control, the control unit 53 of the power transmission device 10 performs at least one determination process of steps S301 to S303 in order to determine whether or not the charging current value AX acquired from the mobile phone 20 is equal to or greater than the required current value TX. .
 ステップS301においては、制御部53は、第3電流テストを実行し、携帯電話20から取得した第3電流値AX3が要求電流値TX以上か否かを判定する。ステップS302においては、制御部53は、第2電流テストを実行し、携帯電話20から取得した第2電流値AX2が要求電流値TX以上か否かを判定する。ステップS303においては、制御部53は、第1電流テストを実行し、携帯電話20から取得した第1電流値AX1が要求電流値TX以上か否かを判定する。 In step S301, the control unit 53 performs a third current test, and determines whether or not the third current value AX3 acquired from the mobile phone 20 is equal to or greater than the required current value TX. In step S302, the control unit 53 performs a second current test, and determines whether or not the second current value AX2 acquired from the mobile phone 20 is equal to or greater than the required current value TX. In step S303, the control unit 53 performs a first current test and determines whether or not the first current value AX1 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
 そして、制御部53は、ステップS301、ステップS301、又はステップS301の判定結果に応じて以下の(A)~(D)のいずれかの処理を行う。 Then, the control unit 53 performs any of the following processes (A) to (D) according to the determination result of step S301, step S301, or step S301.
 (A)ステップS301の判定結果が肯定判定のとき、すなわち第3コイル33への通電により得られた充電電流値AX(AX3)が要求電流値TX以上のとき、制御部53は、ステップS314において、コイル使用形態として第3単独形態を選択する。 (A) When the determination result in step S301 is affirmative, that is, when the charging current value AX (AX3) obtained by energizing the third coil 33 is equal to or greater than the required current value TX, the control unit 53 determines in step S314. The third single mode is selected as the coil usage mode.
 (B)ステップS301の判定結果が否定判定であり、かつステップS302の判定結果が肯定判定のとき、すなわち第2コイル32への通電により得られた充電電流値AX(AX2)が要求電流値TX以上のとき、制御部53は、ステップS313において、コイル使用形態として第2単独形態を選択する。 (B) When the determination result in step S301 is negative and the determination result in step S302 is affirmative, that is, the charging current value AX (AX2) obtained by energizing the second coil 32 is the required current value TX. At this time, the control unit 53 selects the second single form as the coil use form in step S313.
 (C)ステップS301およびステップS302の判定結果が否定判定であり、かつステップS303の判定結果が肯定判定のとき、すなわち第1コイル31への通電により得られた充電電流値AX(AX1)が要求電流値TX以上のとき、制御部53は、ステップS312において、コイル使用形態として第1単独形態を選択する。 (C) When the determination result of step S301 and step S302 is negative determination and the determination result of step S303 is affirmative determination, that is, the charging current value AX (AX1) obtained by energizing the first coil 31 is requested. When the current value is equal to or greater than TX, in step S312, the control unit 53 selects the first single form as the coil use form.
 (D)ステップS301~S303の判定結果が否定判定のとき、すなわち第1~第3単独形態では要求電流値TX以上の充電電流値AXが得られないとき、制御部53は、ステップS311において、コイル使用形態として第1~第4複合形態のいずれかを選択する。なお、第1~第4複合形態のうちのいずれを選択するかは例えば受電装置(2次電池)に応じて予め設定されている。 (D) When the determination result of steps S301 to S303 is negative, that is, when the charging current value AX equal to or greater than the required current value TX cannot be obtained in the first to third single modes, the control unit 53 determines in step S311 One of the first to fourth composite forms is selected as the coil use form. Note that which one of the first to fourth combined forms is selected is set in advance according to, for example, the power receiving device (secondary battery).
 第3実施形態の非接触式給電装置1によれば、第1実施形態の(1)~(4)の効果、および以下の(5)の効果が得られる。 According to the non-contact power feeding device 1 of the third embodiment, the effects (1) to (4) of the first embodiment and the following effect (5) can be obtained.
 (5)非接触式給電装置1は、電流テストにより得られる充電電流値AXに応じてコイル使用形態を選択する。この構成によれば、要求電流値TX以上の充電電流値AXが得られるコイル使用形態が選択される。このため、例えば充電電流値AXが要求電流値TXよりも小さいことに起因して充電時間が過度に長くなることを抑制することができる。 (5) The non-contact power supply device 1 selects a coil usage mode according to the charging current value AX obtained by the current test. According to this configuration, a coil usage mode that can obtain a charging current value AX that is equal to or greater than the required current value TX is selected. For this reason, for example, the charging time can be suppressed from becoming excessively long due to the charging current value AX being smaller than the required current value TX.
 (第4実施形態)
 図2および図9を参照して、第4実施形態の非接触式給電装置1を説明する。なお、第4実施形態の非接触式給電装置1は、第3実施形態の非接触式給電装置1におけるコイル選択制御の一部を変更することで構成されている。このため、以下では第3実施形態の非接触式給電装置1と異なる点の詳細を説明し、第3実施形態の非接触式給電装置1と共通する構成については同一符号を付しその説明の一部または全部を省略する。
(Fourth embodiment)
With reference to FIG. 2 and FIG. 9, the non-contact-type electric power feeder 1 of 4th Embodiment is demonstrated. In addition, the non-contact type electric power feeder 1 of 4th Embodiment is comprised by changing a part of coil selection control in the non-contact type electric power feeder 1 of 3rd Embodiment. For this reason, below, the detail of a different point from the non-contact-type electric power feeder 1 of 3rd Embodiment is demonstrated, and the same code | symbol is attached | subjected about the structure which is common in the non-contact-type electric power feeder 1 of 3rd Embodiment, and the description Some or all of them are omitted.
 第4実施形態のコイル選択制御を、第3実施形態からの変更点を中心に以下に説明する。 The coil selection control of the fourth embodiment will be described below with a focus on the changes from the third embodiment.
 第4実施形態の送電装置10は、図2に示される構成と同様に構成されている。上記第3実施形態の非接触式給電装置1は、コイル使用形態の選択のために第1~第3電流テストを行っていた。これに対して、第4実施形態の非接触式給電装置1は、コイル使用形態の選択のために第3電流テストおよび以下の第4~第6電流テストを行う。
(A)第4電流テストでは、第2および第3コイル32,33にテスト電流を供給する。(B)第5電流テストでは、第1および第3コイル31,33にテスト電流を供給する。(C)第6電流テストでは、第1および第2コイル31,32にテスト電流を供給する。
The power transmission device 10 of the fourth embodiment is configured similarly to the configuration shown in FIG. The contactless power supply device 1 of the third embodiment performs the first to third current tests in order to select the coil usage mode. On the other hand, the non-contact power feeding device 1 of the fourth embodiment performs the third current test and the following fourth to sixth current tests in order to select the coil usage mode.
(A) In the fourth current test, a test current is supplied to the second and third coils 32 and 33. (B) In the fifth current test, a test current is supplied to the first and third coils 31 and 33. (C) In the sixth current test, a test current is supplied to the first and second coils 31 and 32.
 携帯電話20の制御部62は、第4~第6電流テストの実行に基づいて以下の第4~第6電流値AX4~AX6をそれぞれ取得する。
(A)第4電流値AX4は、第4電流テストにより得られた充電電流値AXを示す。
(B)第5電流値AX5は、第5電流テストにより得られた充電電流値AXを示す。
(C)第6電流値AX6は、第6電流テストにより得られた充電電流値AXを示す。
The control unit 62 of the mobile phone 20 acquires the following fourth to sixth current values AX4 to AX6 based on the execution of the fourth to sixth current tests, respectively.
(A) The fourth current value AX4 indicates the charging current value AX obtained by the fourth current test.
(B) The fifth current value AX5 indicates the charging current value AX obtained by the fifth current test.
(C) The sixth current value AX6 indicates the charging current value AX obtained by the sixth current test.
 図9を参照して、コイル選択制御の処理手順について説明する。なお、以下のコイル選択制御の説明において、符号が付された各構成要素については図2に記載されたものを示している。 Referring to FIG. 9, the coil selection control processing procedure will be described. In the following description of the coil selection control, the constituent elements denoted by the reference numerals are those shown in FIG.
 送電装置10の制御部53は、コイル選択制御によりコイル使用形態を選択した後、認証完了フラグFKをオフに設定するまでの間、または携帯電話20から充電停止信号KSを受信するまでの間、選択したコイル使用形態を維持して携帯電話20の充電を行う。 The control unit 53 of the power transmission device 10 selects the coil usage pattern by coil selection control and then sets the authentication completion flag FK to OFF or until the charging stop signal KS is received from the mobile phone 20. The mobile phone 20 is charged while maintaining the selected coil usage pattern.
 コイル選択制御では、送電装置10の制御部53は、携帯電話20から取得した充電電流値AX(電流情報信号KE)が要求電流値TX以上か否かを判定するため、ステップS401~S404の少なくとも1つの判定処理を行う。 In the coil selection control, the control unit 53 of the power transmission device 10 determines whether or not the charging current value AX (current information signal KE) acquired from the mobile phone 20 is greater than or equal to the required current value TX, so that at least steps S401 to S404 are performed. One determination process is performed.
 ステップS401においては、制御部53は、第3電流テストを実行し、携帯電話20から取得した第3電流値AX3が要求電流値TX以上か否かを判定する。ステップS402においては、制御部53は、第4電流テストを実行し、携帯電話20から取得した第4電流値AX4が要求電流値TX以上か否かを判定する。 In step S401, the control unit 53 performs a third current test, and determines whether or not the third current value AX3 acquired from the mobile phone 20 is equal to or greater than the required current value TX. In step S402, the control unit 53 performs a fourth current test, and determines whether or not the fourth current value AX4 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
 ステップS403においては、制御部53は、第5電流テストを実行し、携帯電話20から取得した第5電流値AX5が要求電流値TX以上か否かを判定する。ステップS404においては、制御部53は、第6電流テストを実行し、携帯電話20から取得した第6電流値AX6が要求電流値TX以上か否かを判定する。 In step S403, the control unit 53 executes a fifth current test, and determines whether or not the fifth current value AX5 acquired from the mobile phone 20 is equal to or greater than the required current value TX. In step S404, the control unit 53 performs a sixth current test, and determines whether the sixth current value AX6 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
 そして、制御部53は、ステップS401、S402、S403、又はS404での判定結果に応じて以下の(A)~(E)のいずれかの処理を行う。 Then, the control unit 53 performs any of the following processes (A) to (E) according to the determination result in step S401, S402, S403, or S404.
 (A)ステップS401の判定結果が肯定判定のとき、すなわち第3コイル33への通電により得られた充電電流値AX(AX3)が要求電流値TX以上のとき、制御部53は、ステップS415において、コイル使用形態として第3単独形態を選択する。 (A) When the determination result in step S401 is affirmative, that is, when the charging current value AX (AX3) obtained by energizing the third coil 33 is equal to or greater than the required current value TX, the control unit 53 determines in step S415. The third single mode is selected as the coil usage mode.
 (B)ステップS401の判定結果が否定判定であり、かつステップS402の判定結果が肯定判定のとき、すなわち第2および第3コイル32,33への通電により得られた充電電流値AX(AX4)が要求電流値TX以上のとき、制御部53は、ステップS414において、コイル使用形態として第1複合形態を選択する。 (B) When the determination result of step S401 is negative and the determination result of step S402 is affirmative, that is, the charging current value AX (AX4) obtained by energizing the second and third coils 32 and 33 Is equal to or greater than the required current value TX, the control unit 53 selects the first combined form as the coil use form in step S414.
 (C)ステップS401およびステップS402の判定結果が否定判定であり、かつステップS403の判定結果が肯定判定のとき、すなわち第1および第3コイル31,33への通電により得られた充電電流値AX(AX5)が要求電流値TX以上のとき、制御部53は、ステップS413において、コイル使用形態として第2複合形態を選択する。 (C) The charging current value AX obtained when the determination result of step S401 and step S402 is negative and the determination result of step S403 is affirmative, that is, by energizing the first and third coils 31, 33. When (AX5) is equal to or greater than the required current value TX, the control unit 53 selects the second composite form as the coil use form in step S413.
 (D)ステップS401~S403の判定結果が否定判定であり、かつステップS404の判定結果が肯定判定のとき、すなわち第1および第2コイル31,32への通電により得られた充電電流値AX(AX6)が要求電流値TX以上のとき、制御部53は、ステップS412において、コイル使用形態として第3複合形態を選択する。 (D) When the determination result of steps S401 to S403 is negative and the determination result of step S404 is affirmative, that is, the charging current value AX () obtained by energizing the first and second coils 31, 32 When AX6) is equal to or greater than the required current value TX, the control unit 53 selects the third composite form as the coil use form in step S412.
 (E)ステップS401~S404の判定結果が否定判定のとき、すなわち第3単独形態および第1~第3複合形態では要求電流値TX以上の充電電流値AXが得られないとき、制御部53は、ステップS411において、コイル使用形態として第4複合形態を選択する。 (E) When the determination result of steps S401 to S404 is negative, that is, when the charging current value AX equal to or greater than the required current value TX is not obtained in the third single mode and the first to third combined modes, the control unit 53 In step S411, the fourth composite form is selected as the coil use form.
 第4実施形態の非接触式給電装置1によれば、第1実施形態の(1)~(4)の効果、および第3実施形態の(5)の効果が得られる。 According to the contactless power supply device 1 of the fourth embodiment, the effects (1) to (4) of the first embodiment and the effect (5) of the third embodiment are obtained.
 (第5実施形態)
 図2、図10、および図11を参照して、第5実施形態の非接触式給電装置1を説明する。なお、第5実施形態の非接触式給電装置1は、第3及び第4実施形態の非接触式給電装置1におけるコイル選択制御の一部を変更することで構成されている。このため、以下では、第3及び第4実施形態の非接触式給電装置1と異なる点の詳細を説明し、第3及び第4実施形態の非接触式給電装置1と共通する構成については同一符号を付しその説明の一部または全部を省略する。
(Fifth embodiment)
With reference to FIG. 2, FIG. 10, and FIG. 11, the non-contact-type electric power feeder 1 of 5th Embodiment is demonstrated. In addition, the non-contact type electric power feeder 1 of 5th Embodiment is comprised by changing a part of coil selection control in the non-contact type electric power feeder 1 of 3rd and 4th embodiment. For this reason, below, the detail of a different point from the non-contact-type electric power feeder 1 of 3rd and 4th embodiment is demonstrated, and it is the same about the structure which is common in the non-contact-type electric power feeder 1 of 3rd and 4th embodiment. A reference numeral is attached, and a part or all of the description is omitted.
 第5実施形態によるコイル選択制御を、第3及び第4実施形態からの変更点を中心に以下に説明する。 The coil selection control according to the fifth embodiment will be described below with a focus on the changes from the third and fourth embodiments.
 第5実施形態の送電装置10は、図2に示される構成と同様に構成されている。上記第3実施形態の非接触式給電装置1は、コイル使用形態の選択のために第1~第3電流テストを行っていた。また、上記第4実施形態の非接触式給電装置1は、コイル使用形態の選択のために第3~第6電流テストを行っていた。これに対して、第5実施形態の非接触式給電装置1は、コイル使用形態の選択のために第1~第6電流テストを行う。 The power transmission device 10 of the fifth embodiment is configured similarly to the configuration shown in FIG. The contactless power supply device 1 of the third embodiment performs the first to third current tests in order to select the coil usage mode. In addition, the non-contact power feeding device 1 of the fourth embodiment performs the third to sixth current tests in order to select the coil usage mode. On the other hand, the non-contact power feeding device 1 of the fifth embodiment performs the first to sixth current tests for selection of the coil usage mode.
 図10および図11を参照して、コイル選択制御の処理手順について説明する。なお、以下のコイル選択制御の説明において、符号が付された各構成要素については図2に記載されたものを示している。 The coil selection control processing procedure will be described with reference to FIGS. In the following description of the coil selection control, the constituent elements denoted by the reference numerals are those shown in FIG.
 送電装置10の制御部53は、コイル選択制御によりコイル使用形態を選択した後、認証完了フラグFKをオフに設定するまでの間、または携帯電話20から充電停止信号KSを受信するまでの間、選択したコイル使用形態を維持して携帯電話20の充電を行う。 The control unit 53 of the power transmission device 10 selects the coil usage pattern by coil selection control and then sets the authentication completion flag FK to OFF or until the charging stop signal KS is received from the mobile phone 20. The mobile phone 20 is charged while maintaining the selected coil usage pattern.
 コイル選択制御では、送電装置10の制御部53は、携帯電話20から取得した充電電流値AX(電流情報信号KE)が要求電流値TX以上か否かを判定するため、ステップS501~S506の少なくとも1つの判定処理を行う。 In the coil selection control, the control unit 53 of the power transmission apparatus 10 determines whether or not the charging current value AX (current information signal KE) acquired from the mobile phone 20 is greater than or equal to the required current value TX, so that at least steps S501 to S506 are performed. One determination process is performed.
 ステップS501においては、制御部53は、第3電流テストを実行し、携帯電話20から取得した第3電流値AX3が要求電流値TX以上か否かを判定する。ステップS502においては、制御部53は、第2電流テストを実行し、携帯電話20から取得した第2電流値AX2が要求電流値TX以上か否かを判定する。 In step S501, the control unit 53 performs a third current test, and determines whether or not the third current value AX3 acquired from the mobile phone 20 is equal to or greater than the required current value TX. In step S502, the control unit 53 performs a second current test, and determines whether or not the second current value AX2 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
 ステップS503においては、制御部53は、第4電流テストを実行し、携帯電話20から取得した第4電流値AX4が要求電流値TX以上か否かを判定する。ステップS504においては、制御部53は、第1電流テストを実行し、携帯電話20から取得した第1電流値AX1が要求電流値TX以上か否かを判定する。 In step S503, the control unit 53 performs a fourth current test, and determines whether or not the fourth current value AX4 acquired from the mobile phone 20 is equal to or greater than the required current value TX. In step S504, the control unit 53 performs a first current test and determines whether or not the first current value AX1 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
 ステップS505においては、制御部53は、第5電流テストを実行し、携帯電話20から取得した第5電流値AX5が要求電流値TX以上か否かを判定する。ステップS506においては、制御部53は、第6電流テストを実行し、携帯電話20から取得した第6電流値AX6が要求電流値TX以上か否かを判定する。 In step S505, the control unit 53 executes a fifth current test, and determines whether or not the fifth current value AX5 acquired from the mobile phone 20 is equal to or greater than the required current value TX. In step S506, the control unit 53 performs a sixth current test, and determines whether or not the sixth current value AX6 acquired from the mobile phone 20 is equal to or greater than the required current value TX.
 そして、制御部53は、ステップS501、S502、S503、S504、S505、又はS506での判定結果に応じて以下の(A)~(G)のいずれかの処理を行う。 Then, the control unit 53 performs any of the following processes (A) to (G) according to the determination result in steps S501, S502, S503, S504, S505, or S506.
 (A)ステップS501の判定結果が肯定判定のとき、すなわち第3コイル33への通電により得られた充電電流値AX(AX3)が要求電流値TX以上のとき、制御部53は、ステップS517において、コイル使用形態として第3単独形態を選択する。 (A) When the determination result in step S501 is affirmative, that is, when the charging current value AX (AX3) obtained by energizing the third coil 33 is equal to or greater than the required current value TX, the control unit 53 determines in step S517. The third single mode is selected as the coil usage mode.
 (B)ステップS501の判定結果が否定判定であり、かつステップS502の判定結果が肯定判定のとき、すなわち第2コイル32への通電により得られた充電電流値AX(AX2)が要求電流値TX以上のとき、制御部53は、ステップS516において、コイル使用形態として第2単独形態を選択する。 (B) When the determination result of step S501 is negative and the determination result of step S502 is affirmative, that is, the charging current value AX (AX2) obtained by energizing the second coil 32 is the required current value TX. At this time, the control unit 53 selects the second single form as the coil use form in step S516.
 (C)ステップS501およびステップS502の判定結果が否定判定であり、かつステップS503の判定結果が肯定判定のとき、すなわち第2および第3コイル32,33への通電により得られた充電電流値AX(AX4)が要求電流値TX以上のとき、制御部53は、ステップS515において、コイル使用形態として第1複合形態を選択する。 (C) The charging current value AX obtained when the determination results of steps S501 and S502 are negative and the determination result of step S503 is affirmative, that is, by energizing the second and third coils 32 and 33. When (AX4) is equal to or greater than the required current value TX, the control unit 53 selects the first composite form as the coil use form in step S515.
 (D)ステップS501~S503の判定結果が否定判定であり、かつステップS504の判定結果が肯定判定のとき、すなわち第1コイル31への通電により得られた充電電流値AX(AX1)が要求電流値TX以上のとき、制御部53は、ステップS514において、コイル使用形態として第1単独形態を選択する。 (D) When the determination results of steps S501 to S503 are negative and the determination result of step S504 is affirmative, that is, the charging current value AX (AX1) obtained by energizing the first coil 31 is the required current. When the value is equal to or greater than the value TX, the control unit 53 selects the first single form as the coil use form in step S514.
 (E)ステップS501~S504の判定結果が否定判定であり、かつステップS505の判定結果が肯定判定のとき、すなわち第1および第3コイル31,33への通電により得られた充電電流値AX(AX5)が要求電流値TX以上のとき、制御部53は、ステップS513において、コイル使用形態として第2複合形態を選択する。 (E) When the determination results of steps S501 to S504 are negative and the determination result of step S505 is affirmative, that is, the charging current value AX () obtained by energizing the first and third coils 31, 33 When AX5) is equal to or greater than the required current value TX, the control unit 53 selects the second composite form as the coil use form in step S513.
 (F)ステップS501~S505の判定結果が否定判定であり、かつステップS506の判定結果が肯定判定のとき、すなわち第1および第2コイル31,32への通電により得られた充電電流値AX(AX6)が要求電流値TX以上のとき、制御部53は、ステップS512において、コイル使用形態として第3複合形態を選択する。 (F) When the determination results of steps S501 to S505 are negative and the determination result of step S506 is affirmative, that is, the charging current value AX () obtained by energizing the first and second coils 31, 32 When AX6) is equal to or greater than the required current value TX, the control unit 53 selects the third composite form as the coil use form in step S512.
 (G)ステップS501~S506の判定結果が否定判定のとき、すなわち第1~第3単独形態および第1~第3複合形態では要求電流値TX以上の充電電流値AXが得られないとき、制御部53は、ステップS511において、コイル使用形態として第4複合形態を選択する。 (G) When the determination result of steps S501 to S506 is negative, that is, when the charging current value AX equal to or greater than the required current value TX is not obtained in the first to third single modes and the first to third combined modes, the control is performed. In step S511, the unit 53 selects the fourth composite form as the coil use form.
 第5実施形態の非接触式給電装置1によれば、第1実施形態の(1)~(4)の効果、および第3実施形態の(5)の効果が得られる。 According to the contactless power supply device 1 of the fifth embodiment, the effects (1) to (4) of the first embodiment and the effect (5) of the third embodiment can be obtained.
 (その他の実施形態)
 上記各実施形態は、上記説明した内容に限定されるものではなく、例えば以下のように変更することもできる。また、以下の変形例は上記各実施形態についてのみ適用されるものではなく、異なる変形例同士を互いに組み合わせて実施することもできる。
(Other embodiments)
Each said embodiment is not limited to the content demonstrated above, For example, it can also change as follows. Further, the following modifications are not applied only to the above-described embodiments, and different modifications can be combined with each other.
 ・第1実施形態のコイル選択制御を第2実施形態のコイル選択制御に適用してもよい。また、第1実施形態のコイル選択制御を第3~第5実施形態のコイル選択制御に適用してもよい。また、第2実施形態のコイル選択制御を第3~第5実施形態のコイル選択制御に適用してもよい。また、第1実施形態のコイル選択制御と第2実施形態のコイル選択制御を、第3~第5実施形態のコイル選択制御に適用してもよい。 The coil selection control of the first embodiment may be applied to the coil selection control of the second embodiment. Further, the coil selection control of the first embodiment may be applied to the coil selection control of the third to fifth embodiments. The coil selection control of the second embodiment may be applied to the coil selection control of the third to fifth embodiments. Further, the coil selection control of the first embodiment and the coil selection control of the second embodiment may be applied to the coil selection control of the third to fifth embodiments.
 ・第1実施形態では、携帯電話20から送信される電池情報(電池情報信号KC)に基づいてコイル使用形態を選択しているが、コイル使用形態を選択するための情報は、電池情報のみに限定されるものではなく、例えば以下の情報でもよい。
(A)受電装置の種類を示す機器情報。
(B)受電装置側からコイル使用形態を指定する使用形態要求情報。
-In 1st Embodiment, although the coil usage form is selected based on the battery information (battery information signal KC) transmitted from the mobile telephone 20, the information for selecting a coil usage form is only battery information. For example, the following information may be used.
(A) Device information indicating the type of power receiving device.
(B) Usage pattern request information for specifying a coil usage pattern from the power receiving device side.
 ・第1実施形態では、受電装置(携帯電話20)は、応答確認信号KBとともに電池情報信号KCを送信しているが、電池情報信号KCの送信処理を次のように変更することもできる。すなわち、受電装置が応答要求信号KAを受信したとき、まず応答確認信号KBを送電装置10に送信する。送電装置10は、受電装置から応答確認信号KBを受信すると、電池情報要求信号を受電装置に送信する。そして、受電装置は、この電池情報要求信号を受信したとき、電池情報信号KCを送電装置10に送信する。なお、第2実施形態の充電情報信号KDについても上記と同様に、受電装置は、送電装置10から充電情報要求信号を受信したときに基づいて送信してもよい。 In the first embodiment, the power receiving device (mobile phone 20) transmits the battery information signal KC together with the response confirmation signal KB, but the transmission processing of the battery information signal KC can be changed as follows. That is, when the power receiving apparatus receives the response request signal KA, first, the response confirmation signal KB is transmitted to the power transmitting apparatus 10. Upon receiving the response confirmation signal KB from the power receiving device, the power transmitting device 10 transmits a battery information request signal to the power receiving device. The power receiving device transmits the battery information signal KC to the power transmitting device 10 when receiving the battery information request signal. Note that the charging information signal KD of the second embodiment may be transmitted based on when the charging information request signal is received from the power transmission device 10 as described above.
 ・第1実施形態では、第3コイル33の内周側に第2コイル32を配置し、第2コイル32の内周側に第1コイル31を配置しているが、第1コイル31および第2コイル32の少なくとも一方を第3コイル33の外側に配置してもよい。 In the first embodiment, the second coil 32 is disposed on the inner peripheral side of the third coil 33 and the first coil 31 is disposed on the inner peripheral side of the second coil 32. At least one of the two coils 32 may be disposed outside the third coil 33.
 ・第1実施形態では、第1~第3コイル31~33を同軸上に設けているが、第1~第3コイル31~33の配置を以下のように変更してもよい。
(A)第1コイル31を第2コイル32および第3コイル33に対して偏心させる。
(B)第2コイル32を第1コイル31および第3コイル33に対して偏心させる。
(C)第3コイル33を第1コイル31および第2コイル32に対して偏心させる。
(D)第1~第3コイル31~33の中心を互いに異なる位置に設ける。
In the first embodiment, the first to third coils 31 to 33 are provided coaxially, but the arrangement of the first to third coils 31 to 33 may be changed as follows.
(A) The first coil 31 is eccentric with respect to the second coil 32 and the third coil 33.
(B) The second coil 32 is eccentric with respect to the first coil 31 and the third coil 33.
(C) The third coil 33 is eccentric with respect to the first coil 31 and the second coil 32.
(D) The centers of the first to third coils 31 to 33 are provided at different positions.
 ・第2実施形態では、2次電池23の充電状態を第1~第3充電状態および満充電状態の4つに区分しているが、充電状態を2種類、または3種類、または5種類以上に区分してもよい。 In the second embodiment, the charging state of the secondary battery 23 is divided into four states of the first to third charging states and the fully charged state, but the charging state is two types, three types, or five or more types. It may be divided into
 ・第2実施形態では、2次電池23の充電状態に応じてコイル使用形態を選択しているが、充電状態に代えて、2次電池23の充電時間に応じてコイル使用形態を選択してもよい。なお、ここでの充電時間とは、送電装置10による充電が開始されてからの経過時間を示す。 -In 2nd Embodiment, although the coil usage type is selected according to the charge condition of the secondary battery 23, it replaces with a charge condition and selects a coil usage pattern according to the charge time of the secondary battery 23. Also good. Here, the charging time indicates an elapsed time after the charging by the power transmission device 10 is started.
 例えば、2次電池23の充電時間について、「0」秒から第1閾値までの期間を充電時間TAとし、第1閾値から第2閾値までの期間を充電時間TBとし、第2閾値以上の期間を充電時間TCとして予め区分する。なお、第2閾値は第1閾値よりも大きな値(時間)として設定される。そして、充電時変更制御(コイル選択制御)において、制御部53は、2次電池23の充電時間が充電時間TAに達すると、コイル使用形態として第1単独形態を選択する。また、2次電池23の充電時間が充電時間TBに達すると、制御部53は、コイル使用形態として第2単独形態を選択する。また、2次電池23の充電時間が充電時間TCに達すると、制御部53は、コイル使用形態として第3単独形態を選択する。なお、充電時間の区分をさらに増やし、第1~第3単独形態及び第1~第4複合形態のうちの少なくとも1つを充電時変更制御により選択してもよい。 For example, regarding the charging time of the secondary battery 23, the period from “0” seconds to the first threshold is the charging time TA, the period from the first threshold to the second threshold is the charging time TB, and the period is equal to or greater than the second threshold. Are preliminarily classified as charging time TC. The second threshold is set as a value (time) larger than the first threshold. In the charging change control (coil selection control), when the charging time of the secondary battery 23 reaches the charging time TA, the control unit 53 selects the first single mode as the coil usage mode. When the charging time of the secondary battery 23 reaches the charging time TB, the control unit 53 selects the second single form as the coil usage form. When the charging time of the secondary battery 23 reaches the charging time TC, the control unit 53 selects the third single mode as the coil usage mode. It should be noted that the charging time category may be further increased, and at least one of the first to third single modes and the first to fourth combined modes may be selected by the change control during charging.
 ・第3実施形態では、送電装置10の制御部53は充電電流値AXと要求電流値TXとを比較し、その比較結果に応じてコイル使用形態を選択しているが、充電電流値AXに基づくコイル使用形態の選択方法はこれに限られない。例えば、第3実施形態は、以下の(A)または(B)のように変更することもできる。 -In 3rd Embodiment, although the control part 53 of the power transmission apparatus 10 compares the charging current value AX with the request | requirement current value TX, the coil usage form is selected according to the comparison result, The selection method of the coil usage form based on this is not restricted to this. For example, the third embodiment can be modified as in the following (A) or (B).
 (A)携帯電話20の制御部62は、充電電流値AXと要求電流値TXとを比較し、比較結果情報を含む比較情報信号を送電装置10に送信する。送電装置10の制御部53は、携帯電話20からの比較情報信号に含まれる比較結果情報に応じてコイル使用形態を選択する。すなわち、充電電流値AXが要求電流値TX以上であることを比較結果情報が示すとき、制御部53は、その比較結果情報を得るのに実行した電流テストに対応するコイル使用形態を選択する。一方、充電電流値AXが要求電流値TX未満であることを比較結果情報が示すとき、制御部53は、別の電流テストを実行する。なお、本変形例において、比較情報信号は「2次側応答要求信号」の一例である。 (A) The control unit 62 of the mobile phone 20 compares the charging current value AX and the required current value TX, and transmits a comparison information signal including comparison result information to the power transmission device 10. The control unit 53 of the power transmission device 10 selects a coil usage pattern according to the comparison result information included in the comparison information signal from the mobile phone 20. That is, when the comparison result information indicates that the charging current value AX is equal to or greater than the required current value TX, the control unit 53 selects a coil usage mode corresponding to the current test executed to obtain the comparison result information. On the other hand, when the comparison result information indicates that the charging current value AX is less than the required current value TX, the control unit 53 executes another current test. In the present modification, the comparison information signal is an example of a “secondary response request signal”.
 (B)携帯電話20の制御部62は、充電電流値AXと要求電流値TXとを比較し、その比較結果に応じてコイル使用形態を指定する使用形態要求信号を送電装置10に送信する。例えば、充電電流値AXが要求電流値TX以上のとき、制御部62は、その充電電流値AXの取得時に実行した電流テストに対応するコイル使用形態を指定する使用形態要求信号を送信する。一方、充電電流値AXが要求電流値TX未満のとき、制御部62は、別の電流テストの実行を要求するテスト要求信号を送信する。送電装置10の制御部53は、携帯電話20からの使用形態要求信号に含まれる指定情報に応じてコイル使用形態を選択する。なお、本変形例において、使用形態要求信号は「2次側応答要求信号」の一例である。 (B) The control unit 62 of the mobile phone 20 compares the charging current value AX and the requested current value TX, and transmits a usage pattern request signal for designating a coil usage pattern to the power transmission apparatus 10 according to the comparison result. For example, when the charging current value AX is equal to or greater than the required current value TX, the control unit 62 transmits a usage pattern request signal for designating a coil usage pattern corresponding to the current test performed when the charging current value AX is acquired. On the other hand, when the charging current value AX is less than the required current value TX, the control unit 62 transmits a test request signal for requesting execution of another current test. The control unit 53 of the power transmission device 10 selects the coil usage pattern according to the designation information included in the usage pattern request signal from the mobile phone 20. In this modification, the usage pattern request signal is an example of a “secondary response request signal”.
 ・上記各実施形態では、第1コイル31のリッツ線の本数を第2コイル32のリッツ線の本数よりも多くし、かつ第2コイル32のリッツ線の本数を第3コイル33のリッツ線の本数よりも多くしているが、リッツ線の本数の関係はこれに限られない。例えば、リッツ線の本数の関係は、以下のように変更することもできる。
(A)第1~第3コイル31~33のうちの2つのコイルのリッツ線の本数を同じにする。
(B)第1~第3コイル31~33のリッツ線の本数を同じにする。
In each of the above embodiments, the number of litz wires of the first coil 31 is larger than the number of litz wires of the second coil 32, and the number of litz wires of the second coil 32 is the number of litz wires of the third coil 33. Although the number is larger than the number, the relationship of the number of litz wires is not limited to this. For example, the relationship of the number of litz wires can be changed as follows.
(A) The number of litz wires of the two coils among the first to third coils 31 to 33 is made the same.
(B) The number of litz wires of the first to third coils 31 to 33 is made the same.
 ・上記各実施形態では、1次側コイル30は、互いに異なる大きさ(即ち、異なる径)を有する3つのコイルにより構成されたが、同じ大きさ(同じ径)を有する複数のコイルにより構成されてもよい。この場合、複数のコイルの配置としては、例えば図12および図13に示されるものを採用することができる。 In each of the above embodiments, the primary coil 30 is configured by three coils having different sizes (that is, different diameters), but is configured by a plurality of coils having the same size (the same diameter). May be. In this case, as the arrangement of the plurality of coils, for example, those shown in FIGS. 12 and 13 can be employed.
 図12に示される変形例においては、1次側コイル80は、全て同じ径を有する第1~第3コイル81~83を含む。これらの第1~第3コイル81~83は、2次側コイル40の大きさ(径)に対応する範囲内(図12中の二点鎖線内)において、互いに離間した状態で配置されている。 In the modification shown in FIG. 12, the primary coil 80 includes first to third coils 81 to 83 all having the same diameter. These first to third coils 81 to 83 are arranged in a state of being separated from each other within a range corresponding to the size (diameter) of the secondary coil 40 (within the two-dot chain line in FIG. 12). .
 図13に示される変形例においては、1次側コイル80の第1~第3のコイル81~83は、2次側コイル40の大きさ(径)に対応する範囲内(図13中の二点鎖線内)において、斜線で示される重畳領域Rを有するように互いに重ね合わせられている。即ち、第1~第3コイル81~83が軸方向において互いに異なる位置に設けられることにより重畳領域Rが形成されている。なお、この場合には、コイル81~83のうち軸方向において最も下方に配置されたコイル81にのみヨークが設けられていてもよい。このヨークとしては、例えばコイル81のみを下方から覆う大きさのヨーク、またはコイル81~83の全体を下方から覆う大きさのヨークを用いることができる。 In the modification shown in FIG. 13, the first to third coils 81 to 83 of the primary side coil 80 are within a range corresponding to the size (diameter) of the secondary side coil 40 (the second coil in FIG. In the dotted line), they are overlapped with each other so as to have an overlapping region R indicated by diagonal lines. That is, the overlapping region R is formed by providing the first to third coils 81 to 83 at different positions in the axial direction. In this case, the yoke may be provided only in the coil 81 disposed at the lowest position in the axial direction among the coils 81 to 83. As this yoke, for example, a yoke that can cover only the coil 81 from below, or a yoke that can cover the entire coils 81 to 83 from below can be used.
 ・上記図13に示される変形例において、コイル81~83の全体が互いに重ね合わせられてもよい。すなわちコイル81~83を軸方向に並べるとともに同軸上にコイル81~83を配置してもよい。 In the modification shown in FIG. 13, the entire coils 81 to 83 may be overlapped with each other. That is, the coils 81 to 83 may be arranged in the axial direction and the coils 81 to 83 may be arranged coaxially.
 ・上記各実施形態において、図14に示されるように、コイル使用形態をユーザーが切り替えるための操作部90を送電装置10に設けてもよい。操作部90には、第1単独形態を選択するための操作ボタン91、第2単独形態を選択するための操作ボタン92、および第3単独形態を選択するための操作ボタン93が設けられている。なお、図示は省略するものの第1複合形態~第4複合形態のそれぞれに対応した操作ボタンを操作部90に設けてもよい。また、この図14の変形例においては、送電装置10は、上記各実施形態のように受電装置(携帯電話20)から受信した信号(KC,KD,KE等)に応じてコイル使用形態を変更するのではなく、単に操作部90の操作に応じてコイル使用形態を変更するように構成されてもよい。 In each of the above embodiments, as shown in FIG. 14, an operation unit 90 for the user to switch the coil usage mode may be provided in the power transmission device 10. The operation unit 90 is provided with an operation button 91 for selecting the first single form, an operation button 92 for selecting the second single form, and an operation button 93 for selecting the third single form. . Although not shown, the operation unit 90 may be provided with operation buttons corresponding to each of the first to fourth composite forms. In the modification of FIG. 14, the power transmission device 10 changes the coil usage pattern according to the signal (KC, KD, KE, etc.) received from the power reception device (mobile phone 20) as in the above embodiments. Instead of this, it may be configured such that the coil usage pattern is simply changed according to the operation of the operation unit 90.
 ・上記各実施形態では、各コイル31~33における搭載面11Aに近い側の端面から該搭載面11Aまでの距離が同じに設定されていた(図1(b)参照)。しかしながら、この距離をコイル31~33間で互いに異なるものとしてもよい。例えば、第1コイル31の端面と搭載面11Aとの距離を第1距離とし、第2コイル32の端面と搭載面11Aとの距離を第2距離とし、第3コイル33の端面と搭載面11Aとの距離を第3距離としたとき、これらの第1~第3距離の関係を以下のように設定してもよい。
(A)第1距離を第2距離および第3距離よりも大きくまたは小さくする。
(B)第2距離を第1距離および第3距離よりも大きくまたは小さくする。
(C)第3距離を第1距離および第2距離よりも大きくまたは小さくする。
(D)上記(A)において第2距離を第3距離よりも大きくまたは小さくする。
(E)上記(B)において第1距離を第3距離よりも大きくまたは小さくする。
(F)上記(C)において第1距離を第2距離よりも大きくまたは小さくする。
In each of the above embodiments, the distances from the end surfaces near the mounting surface 11A in the coils 31 to 33 to the mounting surface 11A are set to be the same (see FIG. 1B). However, this distance may be different between the coils 31 to 33. For example, the distance between the end surface of the first coil 31 and the mounting surface 11A is the first distance, the distance between the end surface of the second coil 32 and the mounting surface 11A is the second distance, and the end surface of the third coil 33 and the mounting surface 11A. The relationship between these first to third distances may be set as follows when the distance between the first and third distances is the third distance.
(A) The first distance is made larger or smaller than the second distance and the third distance.
(B) The second distance is made larger or smaller than the first distance and the third distance.
(C) The third distance is made larger or smaller than the first distance and the second distance.
(D) In (A) above, the second distance is made larger or smaller than the third distance.
(E) In (B) above, the first distance is made larger or smaller than the third distance.
(F) In (C), the first distance is made larger or smaller than the second distance.
 ・上記各実施形態において、図14に示されるように、選択中のコイル使用形態を表示する表示部70を送電装置10に設けてもよい。表示部70は、第1単独形態が選択されているときに点灯する第1表示ランプ71と、第2単独形態が選択されているときに点灯する第2表示ランプ72と、第3単独形態が選択されているときに点灯する第3表示ランプ73とを含む。なお、図示は省略するものの第1~第4複合形態のそれぞれに対応した第4~第7表示ランプを表示部70に設けてもよい。 In each of the above embodiments, as shown in FIG. 14, the power transmission device 10 may be provided with a display unit 70 that displays the selected coil usage pattern. The display unit 70 includes a first display lamp 71 that is lit when the first single form is selected, a second display lamp 72 that is lit when the second single form is selected, and a third single form. And a third display lamp 73 that is lit when selected. Although not shown, the display unit 70 may be provided with fourth to seventh display lamps corresponding to the first to fourth composite forms.
 ・上記図14の変形例においては、選択中のコイル使用形態をユーザーに示すものとして表示部70が設けられているが、搭載面11Aにおいての受電装置の搭載位置をユーザーに案内するものとして表示部70を設けてもよい。 In the modified example of FIG. 14, the display unit 70 is provided to indicate to the user the coil usage mode being selected. However, the display unit 70 is displayed as a guide to the user on the mounting surface 11A. The unit 70 may be provided.
 例えば、搭載面11Aには、受電装置の種類に応じた搭載位置を示す案内部100が設けられている。案内部100は、第1コイル31による充電に適した受電装置の搭載位置を示す第1案内部101と、第2コイル32による充電に適した受電装置の搭載位置を示す第2案内部102と、第3コイル33による充電に適した受電装置の搭載位置を示す第3案内部103とを含む。 For example, the mounting surface 11A is provided with a guide unit 100 that indicates a mounting position according to the type of the power receiving device. The guide unit 100 includes a first guide unit 101 indicating a mounting position of a power receiving device suitable for charging by the first coil 31, and a second guide unit 102 indicating a mounting position of the power receiving device suitable for charging by the second coil 32. And a third guide part 103 indicating the mounting position of the power receiving device suitable for charging by the third coil 33.
 そして、図2に示される送電装置10の制御部53は、コイル選択制御によりコイル使用形態を選択したとき、選択した使用形態に対応する表示ランプを点灯する。例えば、コイル使用形態として第1単独形態を選択したとき、第1表示ランプ71を点灯させる。このとき、搭載面11Aにおいての受電装置の搭載位置が第2案内部102または第3案内部103の場合、ユーザーは、表示部70の表示をもとに受電装置の搭載位置が表示部70の表示と対応していないことを確認することができる。そして、点灯している第1表示ランプ71に対応する第1案内部101の位置に受電装置を移動させることにより、第1単独形態による充電が行われる。 And the control part 53 of the power transmission apparatus 10 shown by FIG. 2 will light the display lamp corresponding to the selected usage type, when a coil usage type is selected by coil selection control. For example, when the first single form is selected as the coil use form, the first display lamp 71 is turned on. At this time, when the mounting position of the power receiving device on the mounting surface 11 </ b> A is the second guide unit 102 or the third guide unit 103, the user sets the mounting position of the power receiving device on the display unit 70 based on the display on the display unit 70. It can be confirmed that it does not correspond to the display. And charging by a 1st single form is performed by moving a power receiving apparatus to the position of the 1st guide part 101 corresponding to the 1st display lamp 71 currently lighted.
 ・上記各実施形態では、1次側コイル30として、第1コイル31、第2コイル32、および第3コイル33を設けているが、コイル31~33のいずれか1つを省略して1次側コイル30の数を2個に変更してもよい。また、コイル31~33にさらに少なくとも1つのコイルを加えることにより1次側コイル30の数を4個以上に変更してもよい。 In each of the above embodiments, the first coil 31, the second coil 32, and the third coil 33 are provided as the primary coil 30, but any one of the coils 31 to 33 is omitted and the primary coil 30 is omitted. The number of side coils 30 may be changed to two. Further, the number of primary coils 30 may be changed to four or more by adding at least one coil to the coils 31 to 33.
 ・上記各実施形態では、充電時周波数制御を行う構成を採用しているが、同制御を省略することもできる。 In each of the above embodiments, a configuration for performing frequency control during charging is employed, but the control can be omitted.
 ・上記各実施形態において、電動歯ブラシ、およびシェーバーの少なくとも一方を受電装置として搭載可能な送電装置を用いることもできる。 In each of the above embodiments, a power transmission device capable of mounting at least one of an electric toothbrush and a shaver as a power receiving device can also be used.

Claims (10)

  1.  送電装置を備え、該送電装置に設けられた1次側コイルから受電装置に設けられた2次側コイルに交番磁束を付与する非接触式給電装置において、
     前記送電装置に設けられ、電気的に並列に接続された複数の1次側コイルを備え、
     前記送電装置は、前記受電装置から受信した信号に応じて前記複数の1次側コイルの使用形態を変更するように構成されていることを特徴とする非接触式給電装置。
    In a non-contact power feeding device that includes a power transmission device and applies an alternating magnetic flux from a primary coil provided in the power transmission device to a secondary coil provided in the power receiving device.
    A plurality of primary coils provided in the power transmission device and electrically connected in parallel;
    The power transmission device is configured to change a usage pattern of the plurality of primary coils in accordance with a signal received from the power reception device.
  2.  請求項1に記載の非接触式給電装置において、
     前記送電装置は、前記受電装置から受信した2次電池の充電状態を示す信号に応じて前記複数の1次側コイルの使用形態を変更するように構成されていることを特徴とする非接触式給電装置。
    The contactless power supply device according to claim 1,
    The power transmission device is configured to change a usage pattern of the plurality of primary coils in accordance with a signal indicating a charging state of a secondary battery received from the power receiving device. Power supply device.
  3.  請求項1または2に記載の非接触式給電装置において、
     前記送電装置は、前記受電装置から受信した該受電装置の種類を示す信号に応じて前記複数の1次側コイルの使用形態を変更するように構成されていることを特徴とする非接触式給電装置。
    The contactless power supply device according to claim 1 or 2,
    The power transmission device is configured to change a usage pattern of the plurality of primary coils in accordance with a signal indicating the type of the power reception device received from the power reception device. apparatus.
  4.  請求項1~3のいずれか一項に記載の非接触式給電装置において、
     前記受電装置は、前記複数の1次側コイルの少なくとも1つから前記2次側コイルに付与された交番磁束により前記2次側コイルに流れる2次側誘導電流に基づいて2次側応答要求信号を生成し、
     前記送電装置は、前記受電装置からの前記2次側応答要求信号に応じて前記複数の1次側コイルの使用形態を変更するように構成されていることを特徴とする非接触式給電装置。
    The contactless power feeding device according to any one of claims 1 to 3,
    The power receiving device receives a secondary side response request signal based on a secondary induced current flowing in the secondary coil by an alternating magnetic flux applied to the secondary coil from at least one of the plurality of primary coils. Produces
    The power transmission device is configured to change a usage pattern of the plurality of primary coils in response to the secondary side response request signal from the power reception device.
  5.  請求項4に記載の非接触式給電装置において、
     前記受電装置は、前記2次側誘導電流に基づいて直流電流を生成して、2次電池を充電する前記直流電流の電流値を示す充電電流値を決定し、
     前記送電装置は、前記受電装置からの前記2次側応答要求信号に含まれる前記充電電流値の大きさに応じて前記複数の1次側コイルの使用形態を変更するように構成されていることを特徴とする非接触式給電装置。
    In the non-contact-type electric power feeder of Claim 4,
    The power receiving device generates a direct current based on the secondary induced current and determines a charging current value indicating a current value of the direct current for charging the secondary battery;
    The power transmission device is configured to change a usage pattern of the plurality of primary side coils according to a magnitude of the charging current value included in the secondary side response request signal from the power receiving device. A non-contact power supply device characterized by the above.
  6.  請求項5に記載の非接触式給電装置において、
     前記送電装置は、前記充電電流値が前記2次電池の充電に要求される要求電流値以上となるように前記複数の1次側コイルの使用形態を選択するように構成されていることを特徴とする非接触式給電装置。
    The contactless power supply device according to claim 5,
    The power transmission device is configured to select a usage pattern of the plurality of primary coils so that the charging current value is equal to or higher than a required current value required for charging the secondary battery. A non-contact power supply device.
  7.  請求項1~6のいずれか一項に記載の非接触式給電装置において、
     前記複数の1次側コイルは、第1の径を有する第1コイルと、前記第1の径よりも大きい第2の径を有する第2コイルとを含み、
     前記第1コイルは、前記第2コイルの内周側に設けられていることを特徴とする非接触式給電装置。
    The contactless power feeding device according to any one of claims 1 to 6,
    The plurality of primary side coils include a first coil having a first diameter and a second coil having a second diameter larger than the first diameter,
    The non-contact power feeding device according to claim 1, wherein the first coil is provided on an inner peripheral side of the second coil.
  8.  請求項7に記載の非接触式給電装置において、
     前記第1コイルおよび前記第2コイルが同軸上に設けられていることを特徴とする非接触式給電装置。
    The contactless power supply device according to claim 7,
    The non-contact power supply device, wherein the first coil and the second coil are provided coaxially.
  9.  請求項1~6のいずれか一項に記載の非接触式給電装置において、
     前記複数の1次側コイルは、第1コイルおよび第2コイルを含み、
     前記第1コイルおよび前記第2コイルはそれぞれの中心線が互いに平行となり且つ前記中心線に沿う方向において前記第1及び第2コイルが重ね合わせられるように設けられていることを特徴とする非接触式給電装置。
    The contactless power feeding device according to any one of claims 1 to 6,
    The plurality of primary coils include a first coil and a second coil,
    The first coil and the second coil are provided so that their center lines are parallel to each other, and the first and second coils are overlapped in a direction along the center line. Power feeder.
  10.  送電装置を備え、該送電装置に設けられた1次側コイルから受電装置に設けられた2次側コイルに交番磁束を付与する非接触式給電装置において、
     前記送電装置に設けられ、電気的に並列に接続された複数の1次側コイルと、
     前記送電装置に設けられ、前記複数の1次側コイルの使用形態を変更するための操作部と、
    を備え、
     前記送電装置は、前記操作部の操作に応じて前記複数の1次側コイルの使用形態を変更するように構成されていることを特徴とする非接触式給電装置。
    In a non-contact power feeding device that includes a power transmission device and applies an alternating magnetic flux from a primary coil provided in the power transmission device to a secondary coil provided in the power receiving device.
    A plurality of primary coils provided in the power transmission device and electrically connected in parallel;
    An operation unit provided in the power transmission device, for changing a usage pattern of the plurality of primary coils,
    With
    The power transmission device is configured to change a usage pattern of the plurality of primary side coils in accordance with an operation of the operation unit.
PCT/JP2012/051021 2011-01-25 2012-01-19 Contactless power supply device WO2012102157A1 (en)

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