WO2014073161A1 - Contactless power feed device - Google Patents

Contactless power feed device Download PDF

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Publication number
WO2014073161A1
WO2014073161A1 PCT/JP2013/006028 JP2013006028W WO2014073161A1 WO 2014073161 A1 WO2014073161 A1 WO 2014073161A1 JP 2013006028 W JP2013006028 W JP 2013006028W WO 2014073161 A1 WO2014073161 A1 WO 2014073161A1
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WO
WIPO (PCT)
Prior art keywords
power feeding
primary coil
see
panel
power supply
Prior art date
Application number
PCT/JP2013/006028
Other languages
French (fr)
Japanese (ja)
Inventor
秀明 安倍
稔博 秋山
弘士 小原
小笠原　潔
保 尾崎
豊彦 辻本
薮田　明
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 WO2014073161A1 publication Critical patent/WO2014073161A1/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H02J50/402—Circuit 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings

Definitions

  • the present invention relates to a non-contact power feeding device.
  • Patent Document 1 proposes a non-contact power feeding system that feeds power from a power feeding device to a power receiving device in a non-contact manner.
  • the non-contact system supplies a high-frequency current to the primary coil and supplies electric power to the electrical equipment through the secondary coil using electromagnetic induction.
  • the secondary coil must be installed in a place where the magnetic flux of the primary coil in the power supply area is sufficiently received.
  • Patent Document 2 proposes to indicate a place where an electric device is placed with an LED.
  • the inventor of the present application has noticed that the LED indicating the preferred location of the electrical equipment restricts the design of furniture and structural materials incorporating the power supply device housing and the power supply device. Further, the inventor of the present application has noticed that the user may not be able to realize that the electric device is securely arranged at a position where stable power feeding can be performed only by light emission of the LED.
  • An object of the present invention is to provide a non-contact power feeding device that can easily recognize a place where an electric device to be used is placed and has a high-tech appearance.
  • One aspect of the present invention is directed to a non-contact power feeding device that generates an induced voltage in a non-contact manner in a secondary coil.
  • the non-contact power feeding device is configured such that the power feeding surface, the primary coil that generates the alternating magnetic flux output through the power feeding surface, and the whole or the outer edge of the primary coil can be viewed from the outside of the non-contact power feeding device.
  • a transparent or translucent see-through panel that forms all or part of the feeding surface.
  • An example non-contact power supply apparatus further includes a circuit board on which the primary coil is mounted, and the see-through panel closes an opening of the housing recess in a state where the circuit board is disposed in a housing recess of a structural material. .
  • the circuit board on which the primary coil is mounted further includes a control circuit unit that generates a high-frequency current that flows through the primary coil, and the see-through panel is connected to the primary coil from the outside of the non-contact power feeding device. It is preferable that the coil and the control circuit unit are configured to be visible.
  • An example non-contact power feeding apparatus further includes a housing that houses the primary coil and the circuit board, and the see-through panel provides a power feeding surface of the housing that is disposed in the housing recess of the structural material. It is preferable.
  • the circuit board on which the primary coil is mounted is disposed to face the see-through panel having an area larger than the area of the circuit board, and the circuit board is movable within the range of the see-through panel. .
  • the see-through panel preferably has at least one selected from a color, a pattern, and characters.
  • the see-through panel is provided with a third coil that generates an induced voltage by crossing with the alternating magnetic flux of the primary coil, and a signal processing circuit that performs signal processing on the induced voltage generated by the third coil. It is preferable.
  • the see-through panel is detachably attached to the housing recess or the housing.
  • the illumination control circuit controls the light emission of the light emitting unit so as to decrease the light emission illuminance of the light emitting unit with the passage of time.
  • a furniture in one example, includes an outermost surface and a non-contact power feeding device, and the power feeding surface of the non-contact power feeding device is flush with the outermost surface.
  • the front view of the electric power feeder of FIG. The electric block diagram of the electric power feeder of FIG. 1 and an electric equipment.
  • the perspective view of the furniture provided with the non-power feeding apparatus according to the 1st modification. The perspective view of the electric equipment currently fed with the furniture provided with the non-power feeding apparatus according to the 2nd modification, and the power feeding apparatus.
  • the power feeding device 10 has a housing 11.
  • the housing 11 is, for example, an elongated rectangular parallelepiped.
  • the upper plate 11 a of the housing 11 has an upper surface 12 that is flush with the top plate 2.
  • the upper plate 11a is a transparent or translucent see-through panel W. Therefore, the see-through panel W enables the inside of the housing 11 to be visually recognized from the upper surface 12.
  • the see-through panel W is transparent. Except for the see-through panel W, the front and rear left and right side frames 11b and the lower plate 11c of the housing 11 may be transparent, translucent, or opaque.
  • a control circuit unit 13 that controls the high-frequency current supplied to each primary coil L ⁇ b> 1 is disposed in the housing 11.
  • the energization control of the control circuit unit 13 includes supplying a high-frequency current only to one or more primary coils selected from the plurality of primary coils L1.
  • the primary coil L ⁇ b> 1 and the control circuit unit 13 are mounted on a circuit board 14, and the circuit board 14 is fixed to the inner surface of the lower plate 11 c of the housing 11.
  • each primary coil L1 is preferably opposite to and parallel to the see-through panel W.
  • Each primary coil L ⁇ b> 1 generates an alternating magnetic flux when energized with a high-frequency current, and radiates the alternating magnetic flux upward from the see-through panel W of the housing 11. Therefore, the region facing the primary coil L1 on the upper surface 12 of the housing 11 functions as the power feeding surface 12a.
  • notification lamps 15a and 15b made of light-emitting elements such as LEDs indicating the operation state of the control circuit unit 13 are provided.
  • a plurality of display lamps 16 made of light emitting elements such as LEDs indicating the operation (power supply state) of the corresponding primary coil are arranged at positions corresponding to the plurality of primary coils L 1. It is provided along.
  • an electric device (a fan in the present embodiment) 20 including a secondary coil L2 is coupled with an alternating magnetic flux from the power feeding device 10 (primary coil L1) to receive secondary power.
  • the electric device 20 can be disposed at any position on the top plate 2.
  • the secondary coil L ⁇ b> 2 is provided inside the base 21 of the electric device 20.
  • the coil surface of the secondary coil L2 is parallel to the top plate 2 (the top surface 12 of the see-through panel W) when the electric device 20 is placed on the top plate 2.
  • the coil surface of the secondary coil L2 is parallel to the coil surface of the primary coil L1 disposed under the power feeding surface 12a.
  • An induced voltage is generated in association with the alternating magnetic flux output from the primary coil L1.
  • the induced voltage is used to generate a drive voltage for driving a load Z (for example, a fan motor) Z of the electric device 20.
  • the power supply device 10 includes a plurality of high-frequency inverters 30, a system control unit 31 that performs overall control of each high-frequency inverter 30, and a power supply circuit 32 that functions as a power source for the high-frequency inverter 30 and the system control unit 31. including. including.
  • the high frequency inverter 30, the system control unit 31, and the power supply circuit 32 may be formed in the control circuit unit 13.
  • the power supply circuit 32 has a rectifier circuit and a DC-DC converter.
  • the rectifier circuit rectifies commercial power input from the outside by the power circuit 32.
  • the DC-DC converter converts the rectified direct current voltage into a desired direct current voltage.
  • the power supply circuit 32 supplies the DC voltage to the system control unit 31 and each high frequency inverter 30.
  • the system control unit 31 is composed of a microcomputer and controls each high-frequency inverter 30.
  • the system control unit 31 includes a program code for executing various controls and a memory for storing various data.
  • the plurality of high-frequency inverters 30 are respectively connected to a plurality of primary coils L1 (eight in the present embodiment), and flow high-frequency currents through the corresponding primary coils L1.
  • Each high frequency inverter 30 is connected to the system control unit 31 so as to be capable of data communication, and is controlled by the system control unit 31.
  • the value of the current flowing through the primary coil L1 changes due to the presence of the electric device 20 (secondary coil). For example, when nothing is placed on the power feeding surface 12a, the current flowing through the primary coil L1 has a maximum value. On the other hand, when the electric device 20 is placed on the power feeding surface 12a, the value of the current flowing through the primary coil L1 becomes small.
  • the system control unit 31 when the system control unit 31 outputs an excitation control signal for causing the single high frequency inverter 30 to perform a full bridge operation, the high frequency inverter 30 continuously excites the corresponding primary coil L1.
  • the system control unit 31 when the system control unit 31 outputs an excitation control signal for causing the one high frequency inverter 30 to perform a half-bridge operation, the high frequency inverter 30 intermittently excites the corresponding primary coil L1.
  • This intermittent excitation is a current for detecting presence that can detect whether or not the electric device 20 is mounted on the power supply surface 12a, and does not generate an induced voltage that can drive the load Z of the electric device 20 immediately. Including supplying the presence detection current determined to generate the magnetic flux to the primary coil at a controlled time interval.
  • the high frequency inverter 30 supplies the system control unit 31 with a presence detection signal having a voltage corresponding to the current flowing through the primary coil L1.
  • a presence detection signal having a voltage corresponding to the current flowing through the primary coil L1.
  • the value of the current flowing through the primary coil L1 is relatively large.
  • the value of the current flowing through the primary coil L1 due to the influence of the electric device 20 is Get smaller.
  • the presence detection signal of the high-frequency inverter 30 has a relatively large voltage when the electric device 20 is not on the primary coil L1 (power supply surface 12a), and has the electric device 20 on the primary coil L1 (power supply surface 12a). When there is a relatively small voltage.
  • the system control unit 31 controls lighting of the notification lamps 15a and 15b according to the presence detection signal from each high-frequency inverter 30. For example, when all the primary coils L1 are on standby, the system control unit 31 lights the notification lamp 15a, and when any one of the primary coils L1 is supplying power, the system control unit 31 notifies The lamp 15b is turned on.
  • the system control unit 31 is connected to a plurality of display lamps 16 provided corresponding to the plurality of primary coils L1, respectively. Based on the presence detection signal from the high-frequency inverter 30, the system control unit 31 lights the display lamp 16 corresponding to the primary coil L1 that is being fed.
  • the power receiving circuit 35 includes a rectifying and smoothing circuit unit and a DC-AC conversion circuit.
  • the rectifying / smoothing circuit unit converts the induced voltage generated by the secondary coil L2 into a DC voltage without ripples.
  • the DC-AC conversion circuit converts the DC voltage into an AC voltage that conforms to the power supply specifications of the electrical device 20.
  • the power receiving circuit 35 supplies the AC voltage (drive voltage) to the load Z of the electric device 20.
  • the see-through panel W of the power feeding device 10 is exposed from the top plate 2 of the desk 1, the user can visually recognize the primary coil L1 in the housing 11.
  • the user places the electric device 20 on the power supply surface 12a directly above the arbitrary primary coil L1.
  • the primary coil L1 directly below the electrical device 20 generates an alternating magnetic flux when energized.
  • the secondary coil L2 of the electric device 20 located immediately above the primary coil L1 is linked with the alternating magnetic flux to generate an induced voltage.
  • the power receiving circuit 35 of the electric device 20 supplies the drive voltage generated based on the induced voltage to the load Z. As a result, the electric device 20 can be driven.
  • the power supply device 10 of the present embodiment is a transparent or translucent see-through that forms all or part of the power supply surface 12a so that the entire primary coil L1 or the outer edge can be seen from the outside of the power supply device 10.
  • a panel W is provided.
  • the see-through panel W of the housing 11 is exposed from the top plate 2 so as to be flush with the top plate 2 of the desk 1. Therefore, the user can visually check each primary coil L1 in the casing 11 of the power supply apparatus 10, and is surely placed at a position where the electric device 20 that receives power from the power supply apparatus 10 is desired and has the highest power reception efficiency. Can be placed.
  • the system control unit 31 controls the plurality of display lamps 16 provided corresponding to the plurality of primary coils L1, respectively.
  • the system control unit 31 turns on the display lamp 16 corresponding to the primary coil L1 that is being fed. Therefore, the user can confirm at a glance whether or not the primary coil L1 directly under the electric device 20 is being fed.
  • the power feeding surface 12 a is exposed from the top plate 2, and all or one of the power feeding surfaces 12 a can be seen from above the top plate 2 so that the primary coil L ⁇ b> 1 in the housing 11 can be seen from above.
  • the part is formed of a see-through panel W. Therefore, the power supply apparatus 10 can have a high-tech appearance while allowing the user to recognize that the electric device 20 is in a position where power is stably supplied by the see-through structure.
  • the present invention is not limited to the above embodiment, and may be implemented as follows, for example.
  • the plurality of display lamps 16 that respectively indicate the power supply states of the plurality of primary coils L1 are arranged on the top plate 2 at positions adjacent to the corresponding primary coils L1.
  • the plurality of display lamps 16 may be arranged in one place on the top board 2.
  • the user can visually check the outer edge portion of the primary coil L1 by operating the operation switch 41 to manually turn on the illumination lamp 40 and illuminate the primary coil L1.
  • visual observation of the primary coil L1 is facilitated when the surroundings are dark.
  • the system control unit 31 automatically turns on the illumination lamp 40 according to the detection signal of the brightness sensor 42 and brightly illuminates the primary coil L1, so that the surroundings are dark.
  • the user can see the primary coil L1.
  • the power supply apparatus 10 can have a high-tech appearance by the cooperation of the illumination of the primary coil L1 by the illumination lamp 40 and the see-through structure.
  • the system control unit 31 controls the lighting lamp 40 to emit light at the brightest level in response to the ON operation of the operation switch 41, to reduce the illuminance as time passes, and to turn off the light eventually. Also good.
  • the power feeding device 10 may be portable.
  • the casing 11 of the power supply apparatus 10 has a flat shape.
  • An array of a plurality of primary coils L1 is mounted in a row at the center position of the circuit board 14 arranged in the flat casing 11.
  • the high frequency inverter 30, the system control unit 31, and the power supply circuit 32 are mounted on the circuit board 14 in the vicinity of, for example, the primary coil L1.
  • the upper plate 11a of the housing 11 includes a transparent see-through panel W provided at a position corresponding to the plurality of primary coils L1, that is, the power supply surface 12a.
  • the see-through panel W may be translucent.
  • the display lamps 16 respectively corresponding to the primary coils L1 may be collectively arranged at one place on the upper plate 11a.
  • the portable power supply device 10 is placed on the top plate 2 of the desk 1, placed on the floor, or fitted into the wall 46 of the room 45 as shown in FIG. 9 (b), it can be used by being fitted into the top plate 2 of the desk 1.
  • the power feeding device 10 may be fitted into a structural material such as a floor or furniture.
  • the power feeding device 10 can include a shielding member for switching between a state in which the primary coil L1 is not visible from the outside through the see-through panel W and a state in which the primary coil L1 is visible from the outside through the see-through panel W.
  • the shielding member is a shielding plate 47 that is movably provided in the housing 11.
  • the shielding plate 47 has a shielding position where the primary coil L1 cannot be seen from the outside through the see-through panel W (FIG. 8A) and an open position where the primary coil L1 can be seen from the outside via the see-through panel W (FIG. 8). (B)).
  • the system control unit 31 moves the shielding plate 47 between the shielding position and the open position in response to the operation of the drive switch 48 provided in the housing 11. In this case, the system control unit 31 functions as a shielding control circuit.
  • the shielding member may be an electronic shutter element 50 such as a liquid crystal shutter provided on the upper side (or lower side) of the see-through panel W.
  • the electronic shutter element 50 is in a shielded state in which the primary coil L1 is not visible from the outside through the see-through panel W (FIG. 10A), and in an open state in which the primary coil L1 is visible from the outside through the see-through panel W (see FIG. 10 (b)).
  • An example of the electronic shutter element 50 is a liquid crystal film.
  • the system control unit 31 drives the electronic shutter element 50 in a shielded state or an open state in response to an operation of a drive switch 51 provided on the top plate 2.
  • the electronic shutter element 50 is opened. You may drive to the state. Since the electronic shutter element 50 is automatically opened in response to the placement of the electric device 20, the user can visually observe the primary coil L1 via the electronic shutter element 50 and the see-through panel W (W). .
  • the electronic shutter element 50 is not limited to the liquid crystal film superimposed on the upper side (or the lower side) of the see-through panel W (W), and the electronic shutter element 50 may be incorporated in the see-through panel W.
  • the electronic shutter element 50 is not limited to a liquid crystal shutter, and may be, for example, an organic EL shutter including a transparent electrode and an organic EL transparent display.
  • the shield member may be a pair of opening / closing plates 53 that move in the direction of the arrow shown in FIG.
  • the system control unit 31 moves the open / close plate 53 between the shielding position where the primary coil L1 cannot be seen from the outside through the see-through panel W, and the primary coil L1. Is moved to an open position visible from the outside through the see-through panel W.
  • the see-through panel W has a third coil L3 printed at a position facing the primary coil L1.
  • the third coil L3 is linked with the alternating magnetic flux of the corresponding primary coil L1.
  • a signal processing circuit 55 that performs signal processing on the induced voltage generated by the third coil L3 may be printed on the see-through panel W.
  • the third coil L3 and the signal processing circuit 55 may be printed on the back surface of the see-through panel W, but may be printed on the front surface.
  • One or both of the third coil L3 and the signal processing circuit 55 may be embedded in the see-through panel W.
  • the signal processing circuit 55 can detect the metal and / or the energized state of the primary coil L1 based on the induced voltage generated by the third coil L3.
  • the signal processing circuit 55 may control lighting of the display lamp 16 based on the induced voltage generated by the third coil L3.
  • the signal processing circuit 55 may perform data communication with the electrical device 20 via the third coil L3.
  • the primary coil L1 is immobile in the housing 11, but in the power feeding device 10 in FIGS. 14 (a) to 14 (c), the primary coil L1 is movable, so Panel W is provided so as to cover the movable range of primary coil L1.
  • the entire upper plate of the housing 11 is a movable range of the primary coil L1 and can be formed by the see-through panel W.
  • the system control unit 31 moves the circuit board 14 on which the primary coil L1 is mounted in response to an operation of the drive switch 51 provided in the housing 11. According to this structure, for example, the position of the circuit board 14 (primary coil L1) is changed to the position shown in FIGS. The degree of freedom is improved.
  • the power supply apparatus 10 may include a metal detector that detects that a metal foreign object is placed on the power supply surface 12a, and a function of stopping the power supply operation of the primary coil L1 according to the detection result of the metal detector.
  • the power feeding apparatus 10 preferably includes a plurality of primary coils L1, but may include a single primary coil L1.
  • the plurality of primary coils L1 are arranged in a line in one example, but may be arranged in a plurality of directions, for example, along a three-dimensional surface such as a cylindrical curved surface or a spherical surface.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

A contactless power feed device (10) is provided with: a power feed surface (12a); a primary coil (L1) for generating alternating magnetic flux outputted via the power feed surface (12a); and a transparent or semi-transparent see-through panel (W) for forming all or part of the power feed surface (12a) so that the entire primary coil (L1) or the outer peripheral part thereof can be visually confirmed from the outside of the contactless power feed device (10).

Description

非接触給電装置Non-contact power feeding device
　本発明は非接触給電装置に関するものである。 The present invention relates to a non-contact power feeding device.
　給電装置から受電装置へ非接触にて給電を行う非接触給電システムが例えば特許文献１に提案されている。非接触システムは、１次コイルに高周波電流を流し、電磁誘導を用いて２次コイルを通じて電気機器に給電する。安定給電のためには、２次コイルが給電エリアの１次コイルの磁束を十分受ける場所に設置されなければならない。ＬＥＤで電気機器を置く場所を示すことが例えば特許文献２に提案されている。 For example, Patent Document 1 proposes a non-contact power feeding system that feeds power from a power feeding device to a power receiving device in a non-contact manner. The non-contact system supplies a high-frequency current to the primary coil and supplies electric power to the electrical equipment through the secondary coil using electromagnetic induction. For stable power supply, the secondary coil must be installed in a place where the magnetic flux of the primary coil in the power supply area is sufficiently received. For example, Patent Document 2 proposes to indicate a place where an electric device is placed with an LED.
特許第３４１６８６３号公報Japanese Patent No. 3416863 特許第４２４０７４８号公報Japanese Patent No. 4240748
　電気機器の好ましい配置場所を示すＬＥＤは、給電装置のハウジングや給電装置を組み込んだ家具や構造材のデザイン性を制限することに本願発明者は気付いた。また、ＬＥＤの発光のみでは、ユーザは安定給電ができる位置に電気機器が確実に配置されたと実感できないことがあると本願発明者は気付いた。 The inventor of the present application has noticed that the LED indicating the preferred location of the electrical equipment restricts the design of furniture and structural materials incorporating the power supply device housing and the power supply device. Further, the inventor of the present application has noticed that the user may not be able to realize that the electric device is securely arranged at a position where stable power feeding can be performed only by light emission of the LED.
　本発明の目的は、利用する電気機器の置き場所が容易に認識でき、ハイテク感のある外観を有する非接触給電装置を提供することにある。 An object of the present invention is to provide a non-contact power feeding device that can easily recognize a place where an electric device to be used is placed and has a high-tech appearance.
　本発明の一側面は、２次コイルに非接触で誘起電圧を発生させる非接触給電装置に向けられている。非接触給電装置は、給電面と、前記給電面を介して出力される交番磁束を生成する１次コイルと、前記１次コイルの全体又は外縁部が前記非接触給電装置の外側から視認できるように、前記給電面の全部または一部を形成する透明又は半透明のシースルーパネルとを備える。 One aspect of the present invention is directed to a non-contact power feeding device that generates an induced voltage in a non-contact manner in a secondary coil. The non-contact power feeding device is configured such that the power feeding surface, the primary coil that generates the alternating magnetic flux output through the power feeding surface, and the whole or the outer edge of the primary coil can be viewed from the outside of the non-contact power feeding device. And a transparent or translucent see-through panel that forms all or part of the feeding surface.
　一例の非接触給電装置は、前記１次コイルを実装した回路基板を更に備え、前記前記シースルーパネルは、前記回路基板が構造材の収容凹部に配置された状態で前記収容凹部の開口部を塞ぐ。 An example non-contact power supply apparatus further includes a circuit board on which the primary coil is mounted, and the see-through panel closes an opening of the housing recess in a state where the circuit board is disposed in a housing recess of a structural material. .
　一例では、前記１次コイルを実装した前記回路基板は、前記１次コイルに流される高周波電流を生成する制御回路部を更に含み、前記シースルーパネルは、前記非接触給電装置の外側から前記１次コイル及び前記制御回路部が視認できるように構成されていることが好ましい。 In one example, the circuit board on which the primary coil is mounted further includes a control circuit unit that generates a high-frequency current that flows through the primary coil, and the see-through panel is connected to the primary coil from the outside of the non-contact power feeding device. It is preferable that the coil and the control circuit unit are configured to be visible.
　一例の非接触給電装置は、前記１次コイル及び前記回路基板を収容する筐体を更に備え、前記シースルーパネルは、前記構造材の前記収容凹部に配置された前記筐体の給電面を提供することが好ましい。 An example non-contact power feeding apparatus further includes a housing that houses the primary coil and the circuit board, and the see-through panel provides a power feeding surface of the housing that is disposed in the housing recess of the structural material. It is preferable.
　前記１次コイルを実装した前記回路基板は、前記回路基板の面積より大きい面積の前記シースルーパネルに対向して配置され、前記回路基板は、前記シースルーパネルの範囲内で移動可能であることが好ましい。 Preferably, the circuit board on which the primary coil is mounted is disposed to face the see-through panel having an area larger than the area of the circuit board, and the circuit board is movable within the range of the see-through panel. .
　前記シースルーパネルは、色、模様、及び文字から選択された少なくとも一つを有することが好ましい。 The see-through panel preferably has at least one selected from a color, a pattern, and characters.
　前記シースルーパネルには、前記１次コイルの交番磁束と交鎖して誘起電圧を発生する第３のコイルと、その第３のコイルが発生する誘起電圧を信号処理する信号処理回路とが設けられていることが好ましい。 The see-through panel is provided with a third coil that generates an induced voltage by crossing with the alternating magnetic flux of the primary coil, and a signal processing circuit that performs signal processing on the induced voltage generated by the third coil. It is preferable.
　前記シースルーパネルは、前記収容凹部又は筐体に対して着脱可能に取着されていることが好ましい。 It is preferable that the see-through panel is detachably attached to the housing recess or the housing.
　前記１次コイルは、複数個であることが好ましい。 The primary coil is preferably a plurality.
　非接触給電装置は、前記シースルーパネルの近傍に設けられて前記１次コイルを照明する発光部と、操作スイッチ又は明るさセンサからの信号に従って前記発光部の発光を制御する照明制御回路とを更に備えることが好ましい。 The non-contact power feeding device further includes a light emitting unit that is provided in the vicinity of the see-through panel and illuminates the primary coil, and an illumination control circuit that controls light emission of the light emitting unit according to a signal from an operation switch or a brightness sensor. It is preferable to provide.
　前記照明制御回路は、前記発光部の発光照度を時間の経過に伴って低下させるよう前記発光部の発光を制御することが好ましい。 It is preferable that the illumination control circuit controls the light emission of the light emitting unit so as to decrease the light emission illuminance of the light emitting unit with the passage of time.
　非接触給電装置は、給電中でない前記１次コイルが前記シースルーパネルを介して視認できないように、前記前記１次コイルを遮蔽する遮蔽部材を更に備えることが好ましい。 It is preferable that the non-contact power feeding device further includes a shielding member that shields the primary coil so that the primary coil that is not being fed cannot be visually recognized through the see-through panel.
　前記遮蔽部材は、液晶シャッターであり、非接触給電装置は、駆動スイッチ又は電気機器検知センサからの信号に従って前記液晶シャッターを制御する遮蔽制御回路を更に備えることが好ましい。 Preferably, the shielding member is a liquid crystal shutter, and the non-contact power feeding device further includes a shielding control circuit that controls the liquid crystal shutter according to a signal from a drive switch or an electric device detection sensor.
　前記遮蔽部材は、透明電極と有機ＥＬ透明ディスプレーとを含む有機ＥＬシャッターであり、非接触給電装置は、駆動スイッチ又は電気機器検知センサからの信号に従って前記有機ＥＬシャッターを制御する遮蔽制御回路を更に備えることが好ましい。 The shielding member is an organic EL shutter including a transparent electrode and an organic EL transparent display, and the non-contact power feeding device further includes a shielding control circuit that controls the organic EL shutter according to a signal from a drive switch or an electric device detection sensor. It is preferable to provide.
　前記遮蔽部材は、前記シースルーパネルの上側又は下側に設けられた開閉板であり、非接触給電装置は駆動スイッチ又は電気機器検知センサからの信号に従って前記開閉板を移動させる遮蔽制御回路を更に備えることが好ましい。 The shielding member is an opening / closing plate provided above or below the see-through panel, and the non-contact power feeding device further includes a shielding control circuit that moves the opening / closing plate according to a signal from a drive switch or an electric device detection sensor. It is preferable.
　一例の非接触給電装置は、前記１次コイルによって生成された前記交番磁束を出力する前記給電面を含む筐体を更に備え、前記筐体は、前記１次コイルを移動不能または移動可能に収容しており、前記シースルーパネルは、前記１次コイルの全体または外縁部が前記筐体の外部から視認できるように、前記筐体において前記給電面の一部または全部に対応する位置に設けられている。 An example non-contact power feeding device further includes a housing including the power feeding surface that outputs the alternating magnetic flux generated by the primary coil, and the housing accommodates the primary coil so as not to be movable or movable. The see-through panel is provided at a position corresponding to a part or all of the power feeding surface in the casing so that the entire primary coil or an outer edge portion can be visually recognized from the outside of the casing. Yes.
　一例では、最外面と非接触給電装置とを備え、前記非接触給電装置の前記給電面が前記最外面と面一である家具が提供される。 In one example, a furniture is provided that includes an outermost surface and a non-contact power feeding device, and the power feeding surface of the non-contact power feeding device is flush with the outermost surface.
一実施形態の非接触給電装置を備えた家具と給電装置から給電されている電気機器の斜視図。The perspective view of the electric equipment which is fed with the furniture provided with the non-contact electric power feeder of one Embodiment, and the electric power feeder. 図１の給電装置の正面図。The front view of the electric power feeder of FIG. 図１の給電装置と電気機器の電気ブロック図。The electric block diagram of the electric power feeder of FIG. 1 and an electric equipment. 第１変更例に従う非給電装置を備えた家具の斜視図。The perspective view of the furniture provided with the non-power feeding apparatus according to the 1st modification. 第２変更例に従う非給電装置を備えた家具と給電装置から給電されている電気機器の斜視図。The perspective view of the electric equipment currently fed with the furniture provided with the non-power feeding apparatus according to the 2nd modification, and the power feeding apparatus. 第３変更例に従う非給電装置を備えた家具と給電装置から給電されている電気機器の斜視図。The perspective view of the electric equipment currently fed with the furniture provided with the non-power feeding apparatus according to the 3rd modification, and the power feeding apparatus. 第４変更例に従う非給電装置の斜視図。The perspective view of the non-power feeding apparatus according to the 4th modification. （ａ）（ｂ）は第５変更例に従う非給電装置ののｙ正面図。(A) (b) is y front view of the non-power feeding apparatus according to the fifth modification. （ａ）（ｂ）は、それぞれ非給電装置が配置された建物の壁及び家具の斜視図。(A) and (b) are the perspective views of the wall and furniture of a building in which the non-power feeding apparatus is respectively arranged. （ａ）（ｂ）は第６変更例に従う非給電装置を備えた家具の斜視図。(A) and (b) are the perspective views of the furniture provided with the non-power feeding apparatus according to the 6th modification. （ａ）（ｂ）は第７変更例に従う非給電装置を備えた家具の斜視図。(A) and (b) are the perspective views of the furniture provided with the non-power feeding apparatus according to the 7th modification. （ａ）（ｂ）は第７変更例に従う非給電装置を備えた家具の斜視図。(A) and (b) are the perspective views of the furniture provided with the non-power feeding apparatus according to the 7th modification. 第８変更例に従う非給電装置の部分断面図。The fragmentary sectional view of the non-power feeding apparatus according to the 8th modification. （ａ）（ｂ）（ｃ）は第９変更例に従う非給電装置の正面図。(A) (b) (c) is a front view of the non-power feeding apparatus according to the ninth modification.
　以下、本発明の実施形態に従う非接触給電装置を図１～図３に従って説明する。 Hereinafter, a non-contact power feeding device according to an embodiment of the present invention will be described with reference to FIGS.
　図１及び図２に示すように、非接触給電装置（以下、給電装置という）１０は、机１の収容凹部に収容されている。図示した例では、収容凹部は、天板２の後部に形成された細長い溝である。 As shown in FIG. 1 and FIG. 2, a non-contact power feeding device (hereinafter referred to as a power feeding device) 10 is accommodated in an accommodation recess of the desk 1. In the illustrated example, the accommodation recess is an elongated groove formed in the rear part of the top plate 2.
　給電装置１０は筐体１１を有している。筐体１１は例えば細長い直方体である。筐体１１の上板１１ａは、天板２と面一の上面１２を有する。上板１１ａは、透明または半透明のシースルーパネルＷである。従って、シースルーパネルＷは、上面１２から筐体１１の内部の視認を可能にする。一例では、シースルーパネルＷは透明である。シースルーパネルＷを除く、筐体１１の前後左右側枠１１ｂ及び下板１１ｃは透明でも、半透明でも、不透明でもよい。 The power feeding device 10 has a housing 11. The housing 11 is, for example, an elongated rectangular parallelepiped. The upper plate 11 a of the housing 11 has an upper surface 12 that is flush with the top plate 2. The upper plate 11a is a transparent or translucent see-through panel W. Therefore, the see-through panel W enables the inside of the housing 11 to be visually recognized from the upper surface 12. In one example, the see-through panel W is transparent. Except for the see-through panel W, the front and rear left and right side frames 11b and the lower plate 11c of the housing 11 may be transparent, translucent, or opaque.
　筐体１１内において、複数個（本実施形態では８個）の１次コイルＬ１が一列に配置されている。筐体１１内には、各１次コイルＬ１に供給する高周波電流を制御する制御回路部１３が配置されている。制御回路部１３の通電制御は、複数の１次コイルＬ１から選択された一以上の１次コイルにのみ高周波電流を供給することを含む。図２に示すように、１次コイルＬ１及び制御回路部１３は回路基板１４に実装されていて、その回路基板１４は筐体１１の下板１１ｃの内面に固定されている。 In the housing 11, a plurality (eight in this embodiment) of primary coils L1 are arranged in a row. A control circuit unit 13 that controls the high-frequency current supplied to each primary coil L <b> 1 is disposed in the housing 11. The energization control of the control circuit unit 13 includes supplying a high-frequency current only to one or more primary coils selected from the plurality of primary coils L1. As shown in FIG. 2, the primary coil L <b> 1 and the control circuit unit 13 are mounted on a circuit board 14, and the circuit board 14 is fixed to the inner surface of the lower plate 11 c of the housing 11.
　各１次コイルＬ１のコイル面は、シースルーパネルＷと相対向しかつ平行であることが好ましい。各１次コイルＬ１は、高周波電流が通電されることによって、交番磁束を発生し、その交番磁束を筐体１１のシースルーパネルＷから上方に放射する。従って、筐体１１の上面１２において１次コイルＬ１と対向する領域は、給電面１２ａとして機能する。 The coil surface of each primary coil L1 is preferably opposite to and parallel to the see-through panel W. Each primary coil L <b> 1 generates an alternating magnetic flux when energized with a high-frequency current, and radiates the alternating magnetic flux upward from the see-through panel W of the housing 11. Therefore, the region facing the primary coil L1 on the upper surface 12 of the housing 11 functions as the power feeding surface 12a.
　シースルーパネルＷの上面１２において制御回路部１３の近傍には、制御回路部１３の動作状態を示すＬＥＤ等の発光素子よりなる報知ランプ１５ａ，１５ｂが設けられている。天板２において、複数の１次コイルＬ１にそれぞれ対応する位置には、対応する１次コイルの動作（給電状態）を示すＬＥＤ等の発光素子よりなる複数の表示ランプ１６が複数のシースルーパネルＷに沿って設けられている。 In the upper surface 12 of the see-through panel W, in the vicinity of the control circuit unit 13, notification lamps 15a and 15b made of light-emitting elements such as LEDs indicating the operation state of the control circuit unit 13 are provided. In the top plate 2, a plurality of display lamps 16 made of light emitting elements such as LEDs indicating the operation (power supply state) of the corresponding primary coil are arranged at positions corresponding to the plurality of primary coils L 1. It is provided along.
　図１に示すように、２次コイルＬ２を含む電気機器（本実施形態では扇風機）２０は、給電装置１０（１次コイルＬ１）からの交番磁束と交鎖して２次電力を受電する。電気機器２０は、天板２のどの位置にでも配置できる。２次コイルＬ２は、電気機器２０の基台２１の内部に設けられている。２次コイルＬ２のコイル面は、天板２に電気機器２０が載置されたとき、天板２（シースルーパネルＷの上面１２）と平行となる。 As shown in FIG. 1, an electric device (a fan in the present embodiment) 20 including a secondary coil L2 is coupled with an alternating magnetic flux from the power feeding device 10 (primary coil L1) to receive secondary power. The electric device 20 can be disposed at any position on the top plate 2. The secondary coil L <b> 2 is provided inside the base 21 of the electric device 20. The coil surface of the secondary coil L2 is parallel to the top plate 2 (the top surface 12 of the see-through panel W) when the electric device 20 is placed on the top plate 2.
　電気機器２０をシースルーパネルＷ（給電面１２ａ）に上に載置したとき、２次コイルＬ２のコイル面は、給電面１２ａの下に配置された１次コイルＬ１のコイル面と平行であり、その１次コイルＬ１から出力された交番磁束と交鎖して、誘起電圧を生成する。その誘起電圧は、電気機器２０の負荷（例えば扇風機のモータ等）Ｚを駆動するための駆動電圧の生成に用いられる。 When the electric device 20 is placed on the see-through panel W (power feeding surface 12a), the coil surface of the secondary coil L2 is parallel to the coil surface of the primary coil L1 disposed under the power feeding surface 12a. An induced voltage is generated in association with the alternating magnetic flux output from the primary coil L1. The induced voltage is used to generate a drive voltage for driving a load Z (for example, a fan motor) Z of the electric device 20.
　次に、給電装置１０と電気機器２０の電気的構成を説明する。 Next, the electrical configuration of the power feeding device 10 and the electric device 20 will be described.
　図３に示すように、給電装置１０は、複数の高周波インバータ３０と、各高周波インバータ３０を統括制御するシステム制御部３１と、高周波インバータ３０及びシステム制御部３１の電源として機能する電源回路３２とを含む。を含む。一例では、高周波インバータ３０、システム制御部３１、及び電源回路３２は、制御回路部１３に形成され得る。 As illustrated in FIG. 3, the power supply device 10 includes a plurality of high-frequency inverters 30, a system control unit 31 that performs overall control of each high-frequency inverter 30, and a power supply circuit 32 that functions as a power source for the high-frequency inverter 30 and the system control unit 31. including. including. In one example, the high frequency inverter 30, the system control unit 31, and the power supply circuit 32 may be formed in the control circuit unit 13.
　電源回路３２は、整流回路及びＤＣ－ＤＣコンバータを有する。整流回路は、電源回路３２が外部から入力した商用電源を整流する。ＤＣ－ＤＣコンバータは、整流した直流電圧を所望の電圧の直流電圧に変換する。電源回路３２は、その直流電圧をシステム制御部３１及び各高周波インバータ３０に供給する。 The power supply circuit 32 has a rectifier circuit and a DC-DC converter. The rectifier circuit rectifies commercial power input from the outside by the power circuit 32. The DC-DC converter converts the rectified direct current voltage into a desired direct current voltage. The power supply circuit 32 supplies the DC voltage to the system control unit 31 and each high frequency inverter 30.
　システム制御部３１は、マイクロコンピュータよりなり、各高周波インバータ３０を制御する。システム制御部３１は、各種制御を実行するためのプログラムコード及び各種データを記憶するメモリを含む。 The system control unit 31 is composed of a microcomputer and controls each high-frequency inverter 30. The system control unit 31 includes a program code for executing various controls and a memory for storing various data.
　複数の高周波インバータ３０は、図３に示すように、複数の１次コイルＬ１（本実施形態では８個）にそれぞれ接続され、対応する１次コイルＬ１に高周波電流を流す。各高周波インバータ３０は、システム制御部３１とデータ通信可能に接続されており、システム制御部３１により制御される。 As shown in FIG. 3, the plurality of high-frequency inverters 30 are respectively connected to a plurality of primary coils L1 (eight in the present embodiment), and flow high-frequency currents through the corresponding primary coils L1. Each high frequency inverter 30 is connected to the system control unit 31 so as to be capable of data communication, and is controlled by the system control unit 31.
　各高周波インバータ３０は、例えばフルブリッジ回路を有する。各高周波インバータ３０は、システム制御部３１からの励磁制御信号に従って高周波電流を生成し、その高周波電流を対応する１次コイルＬ１に流す。例えば、システム制御部３１は、電気機器２０に給電する時に高周波インバータ３０のフルブリッジ回路をフルブリッジ動作させるための励磁制御信号を出力する。一方、システム制御部３１は、電気機器２０への給電を行わない待機時には、高周波インバータ３０のフルブリッジ回路をハーフブリッジ動作させるための励磁制御信号を出力する。フルブリッジ回路のハーフブリッジ動作は、隣接している１次コイルＬ１との磁気結合による干渉を低減し、それにより、給電面１２ａ上の電気機器２０の存在検知精度を上げるためである。 Each high frequency inverter 30 has, for example, a full bridge circuit. Each high-frequency inverter 30 generates a high-frequency current in accordance with an excitation control signal from the system control unit 31, and passes the high-frequency current through the corresponding primary coil L1. For example, the system control unit 31 outputs an excitation control signal for causing the full bridge circuit of the high frequency inverter 30 to perform a full bridge operation when power is supplied to the electrical device 20. On the other hand, the system control unit 31 outputs an excitation control signal for causing the full-bridge circuit of the high-frequency inverter 30 to perform a half-bridge operation during standby when power supply to the electrical device 20 is not performed. The half-bridge operation of the full-bridge circuit is to reduce interference due to magnetic coupling with the adjacent primary coil L1, thereby increasing the presence detection accuracy of the electric device 20 on the power supply surface 12a.
　給電面１２ａ上に電気機器２０が載置されたとき、その電気機器２０（２次コイル）の存在によって、１次コイルＬ１に流れる電流値が変化する。例えば、給電面１２ａに何も載置されていない時、１次コイルＬ１に流れる電流は最大値を示す。一方、給電面１２ａに電気機器２０が載置された時、１次コイルＬ１に流れる電流値は小さくなる。 When the electric device 20 is placed on the power supply surface 12a, the value of the current flowing through the primary coil L1 changes due to the presence of the electric device 20 (secondary coil). For example, when nothing is placed on the power feeding surface 12a, the current flowing through the primary coil L1 has a maximum value. On the other hand, when the electric device 20 is placed on the power feeding surface 12a, the value of the current flowing through the primary coil L1 becomes small.
　例えば、システム制御部３１が一高周波インバータ３０に対してフルブリッジ動作をさせるための励磁制御信号を出力している時、その高周波インバータ３０は対応する１次コイルＬ１を連続的に励磁する。一方、システム制御部３１が一高周波インバータ３０に対してハーフブリッジ動作をさせるための励磁制御信号を出力している時、高周波インバータ３０は対応する１次コイルＬ１を間欠的に励磁する。この間欠的励磁は、給電面１２ａに電気機器２０が載置されたかどうかを検知できる程度の存在検知用電流であって、該電気機器２０の負荷Ｚを直ちに駆動できる誘起電圧を生じさせない程度の磁束を１次コイルＬ１が発生するように決められた存在検知用電流を１次コイルに制御された時間間隔で供給することを含む。 For example, when the system control unit 31 outputs an excitation control signal for causing the single high frequency inverter 30 to perform a full bridge operation, the high frequency inverter 30 continuously excites the corresponding primary coil L1. On the other hand, when the system control unit 31 outputs an excitation control signal for causing the one high frequency inverter 30 to perform a half-bridge operation, the high frequency inverter 30 intermittently excites the corresponding primary coil L1. This intermittent excitation is a current for detecting presence that can detect whether or not the electric device 20 is mounted on the power supply surface 12a, and does not generate an induced voltage that can drive the load Z of the electric device 20 immediately. Including supplying the presence detection current determined to generate the magnetic flux to the primary coil at a controlled time interval.
　高周波インバータ３０は、１次コイルＬ１に流れる電流に応じた電圧を有する存在検出信号をシステム制御部３１に供給する。例えば、存在検知用電流が供給されている１次コイルＬ１（給電面１２ａ）上に電気機器２０が載置されていないとき、その１次コイルＬ１に流れる電流値は比較的大きい。反対に、存在検知用電流が供給されている１次コイルＬ１（給電面１２ａ）上に電気機器２０が存在しているとき、電気機器２０の影響によって、その１次コイルＬ１に流れる電流値は小さくなる。 The high frequency inverter 30 supplies the system control unit 31 with a presence detection signal having a voltage corresponding to the current flowing through the primary coil L1. For example, when the electric device 20 is not placed on the primary coil L1 (power feeding surface 12a) to which the presence detection current is supplied, the value of the current flowing through the primary coil L1 is relatively large. On the other hand, when the electric device 20 is present on the primary coil L1 (feeding surface 12a) to which the presence detection current is supplied, the value of the current flowing through the primary coil L1 due to the influence of the electric device 20 is Get smaller.
　従って、高周波インバータ３０の存在検出信号は、１次コイルＬ１（給電面１２ａ）上に電気機器２０がない時には比較的大きな電圧を有し、１次コイルＬ１（給電面１２ａ）上に電気機器２０がある時には比較的小さな電圧を有する。 Therefore, the presence detection signal of the high-frequency inverter 30 has a relatively large voltage when the electric device 20 is not on the primary coil L1 (power supply surface 12a), and has the electric device 20 on the primary coil L1 (power supply surface 12a). When there is a relatively small voltage.
　システム制御部３１は、存在検出信号に基づいて給電面１２ａに電気機器２０が載置されたかどうかを判断する。 The system control unit 31 determines whether or not the electric device 20 is placed on the power feeding surface 12a based on the presence detection signal.
　給電面１２ａに電気機器２０が載置されているとき、システム制御部３１は、該存在検出信号を出力している高周波インバータ３０に対して、フルブリッジ動作のための励磁制御信号を出力する。従って、上方に電気機器２０が位置している１次コイルＬ１は高周波電流の供給を受けて交番磁束を発生する。一方、給電面１２ａに電気機器２０が載置されていないとき、システム制御部３１は、該存在検出信号を出力している高周波インバータ３０に対して、ハーフブリッジ動作のための励磁制御信号を出力する。 When the electric device 20 is placed on the power supply surface 12a, the system control unit 31 outputs an excitation control signal for full-bridge operation to the high-frequency inverter 30 that outputs the presence detection signal. Therefore, the primary coil L1 in which the electric device 20 is located above receives supply of high-frequency current and generates alternating magnetic flux. On the other hand, when the electric device 20 is not placed on the power feeding surface 12a, the system control unit 31 outputs an excitation control signal for half-bridge operation to the high-frequency inverter 30 that outputs the presence detection signal. To do.
　システム制御部３１は、各高周波インバータ３０からの存在検出信号に応じて報知ランプ１５ａ、１５ｂの点灯を制御する。例えば、全ての１次コイルＬ１が待機中の場合には、システム制御部３１は報知ランプ１５ａを点灯し、いずれか１つの１次コイルＬ１が給電中の場合には、システム制御部３１は報知ランプ１５ｂを点灯する。 The system control unit 31 controls lighting of the notification lamps 15a and 15b according to the presence detection signal from each high-frequency inverter 30. For example, when all the primary coils L1 are on standby, the system control unit 31 lights the notification lamp 15a, and when any one of the primary coils L1 is supplying power, the system control unit 31 notifies The lamp 15b is turned on.
　システム制御部３１は、複数の１次コイルＬ１にそれぞれ対応して設けられた複数の表示ランプ１６と接続されている。システム制御部３１は、高周波インバータ３０からの存在検出信号に基づいて、給電中の１次コイルＬ１に対応する表示ランプ１６を点灯する。 The system control unit 31 is connected to a plurality of display lamps 16 provided corresponding to the plurality of primary coils L1, respectively. Based on the presence detection signal from the high-frequency inverter 30, the system control unit 31 lights the display lamp 16 corresponding to the primary coil L1 that is being fed.
　図３に示すように、電気機器２０は、受電装置３４を備える。受電装置３４は、給電装置１０の１次コイルＬ１が発生する交番磁束と交鎖して誘起電圧を発生する２次コイルＬ２と、その２次コイルＬ２と接続された受電回路３５とを含む。 As shown in FIG. 3, the electrical device 20 includes a power receiving device 34. The power receiving device 34 includes a secondary coil L2 that generates an induced voltage in linkage with the alternating magnetic flux generated by the primary coil L1 of the power feeding device 10, and a power receiving circuit 35 that is connected to the secondary coil L2.
　受電回路３５は、整流平滑回路部、ＤＣ－ＡＣ変換回路を有している。整流平滑回路部は２次コイルＬ２が発生した誘起電圧をリップルのない直流電圧に変換する。ＤＣ－ＡＣ変換回路は、その直流電圧を電気機器２０の電源仕様に適合した交流電圧に変換する。受電回路３５は、その交流電圧（駆動電圧）を電気機器２０の負荷Ｚに供給する。 The power receiving circuit 35 includes a rectifying and smoothing circuit unit and a DC-AC conversion circuit. The rectifying / smoothing circuit unit converts the induced voltage generated by the secondary coil L2 into a DC voltage without ripples. The DC-AC conversion circuit converts the DC voltage into an AC voltage that conforms to the power supply specifications of the electrical device 20. The power receiving circuit 35 supplies the AC voltage (drive voltage) to the load Z of the electric device 20.
　次に、給電装置１０と受電装置３４とを含む非接触給電システムの作用について説明する。 Next, the operation of the non-contact power feeding system including the power feeding device 10 and the power receiving device 34 will be described.
　給電装置１０のシースルーパネルＷは机１の天板２から露出しているので、ユーザは筐体１１内の１次コイルＬ１を視認することができる。ユーザは、任意の１次コイルＬ１の真上にある給電面１２ａに電気機器２０を載置する。 Since the see-through panel W of the power feeding device 10 is exposed from the top plate 2 of the desk 1, the user can visually recognize the primary coil L1 in the housing 11. The user places the electric device 20 on the power supply surface 12a directly above the arbitrary primary coil L1.
　電気機器２０の真下の１次コイルＬ１が、通電によって交番磁束を発生する。該１次コイルＬ１の真上に位置する電気機器２０の２次コイルＬ２は、その交番磁束と交鎖して誘起電圧を発生する。電気機器２０の受電回路３５は、誘起電圧に基づいて生成した駆動電圧を負荷Ｚに供給する。これによって、電気機器２０は、駆動可能になる。 The primary coil L1 directly below the electrical device 20 generates an alternating magnetic flux when energized. The secondary coil L2 of the electric device 20 located immediately above the primary coil L1 is linked with the alternating magnetic flux to generate an induced voltage. The power receiving circuit 35 of the electric device 20 supplies the drive voltage generated based on the induced voltage to the load Z. As a result, the electric device 20 can be driven.
　次に、実施形態の効果について記載する。 Next, the effect of the embodiment will be described.
　（１）本実施形態の給電装置１０は、１次コイルＬ１の全体又は外縁部が給電装置１０の外側から視認できるように、給電面１２ａの全部または一部を形成する透明又は半透明のシースルーパネルＷを備える。好ましい例では、筐体１１のシースルーパネルＷは、机１の天板２と面一となるように天板２から露出している。従って、ユーザは給電装置１０の筐体１１内の各１次コイルＬ１を目視でき、給電装置１０から給電を受ける電気機器２０を希望する位置であって、受電効率の最も高い位置に確実に載置できる。 (1) The power supply device 10 of the present embodiment is a transparent or translucent see-through that forms all or part of the power supply surface 12a so that the entire primary coil L1 or the outer edge can be seen from the outside of the power supply device 10. A panel W is provided. In a preferred example, the see-through panel W of the housing 11 is exposed from the top plate 2 so as to be flush with the top plate 2 of the desk 1. Therefore, the user can visually check each primary coil L1 in the casing 11 of the power supply apparatus 10, and is surely placed at a position where the electric device 20 that receives power from the power supply apparatus 10 is desired and has the highest power reception efficiency. Can be placed.
　（２）本実施形態によれば、システム制御部３１は、複数の１次コイルＬ１にそれぞれ対応して設けられた複数の表示ランプ１６を制御する。システム制御部３１は、給電中の１次コイルＬ１に対応する表示ランプ１６を点灯させる。従って、電気機器２０の直下の１次コイルＬ１が給電中であるかどうかをユーザは一目で確認できる。 (2) According to this embodiment, the system control unit 31 controls the plurality of display lamps 16 provided corresponding to the plurality of primary coils L1, respectively. The system control unit 31 turns on the display lamp 16 corresponding to the primary coil L1 that is being fed. Therefore, the user can confirm at a glance whether or not the primary coil L1 directly under the electric device 20 is being fed.
　（３）本実施形態によれば、システム制御部３１は、報知ランプ１５ａ，１５ｂの点灯を制御する。システム制御部３１は、全ての１次コイルＬ１が待機中の場合には、報知ランプ１５ａを点灯させ、いずれか１つの１次コイルＬ１が給電中の場合には報知ランプ１５ｂを点灯させる。従って、給電装置１０が給電中か待機中かをユーザは一目で確認できる。 (3) According to this embodiment, the system control unit 31 controls the lighting of the notification lamps 15a and 15b. The system control unit 31 lights the notification lamp 15a when all the primary coils L1 are on standby, and lights the notification lamp 15b when any one of the primary coils L1 is feeding. Therefore, the user can confirm at a glance whether the power feeding apparatus 10 is power feeding or standby.
　（４）本実施形態によれば、給電面１２ａは天板２から露出しており、筐体１１内の１次コイルＬ１を天板２の上から目視できるように給電面１２ａの全部または一部がシースルーパネルＷで形成されている。従って、給電装置１０は、シースルー構造により、電気機器２０が安定給電される位置にあることをユーザに認識させることができつつ、ハイテク感のある外観を有することができる。 (4) According to this embodiment, the power feeding surface 12 a is exposed from the top plate 2, and all or one of the power feeding surfaces 12 a can be seen from above the top plate 2 so that the primary coil L <b> 1 in the housing 11 can be seen from above. The part is formed of a see-through panel W. Therefore, the power supply apparatus 10 can have a high-tech appearance while allowing the user to recognize that the electric device 20 is in a position where power is stably supplied by the see-through structure.
　本発明は上記実施形態に限定されず、例えば以下のように実施してもよい。 The present invention is not limited to the above embodiment, and may be implemented as follows, for example.
　上記実施形態では、１次コイルＬ１及び制御回路部１３が外部から目視できるように、給電面１２ａを含む上面１２の全ての範囲が透明のシースルーパネルＷで形成されている。しかし、図４に示すように、１次コイルＬ１と対面する給電面１２ａのみがシースルーパネルＷで形成されてもよい。 In the above embodiment, the entire range of the upper surface 12 including the power supply surface 12a is formed by the transparent see-through panel W so that the primary coil L1 and the control circuit unit 13 can be visually observed from the outside. However, only the power feeding surface 12a facing the primary coil L1 may be formed of the see-through panel W as shown in FIG.
　上記実施形態では、筐体１１は、筐体１１の上面１２（給電面１２ａ）が天板２から露出するように埋め込まれている。別の例では、給電装置１０は、天板２に形成された例えば細長い収容凹部と、収容凹部の開口部に嵌められたシースルーパネルＷとを含む。１次コイルＬ１及び制御回路部１３を実装した回路基板１４は収容凹部に設置される。シースルーパネルＷは透明又は半透明のアクリル樹脂板であり得る。この場合にも、シースルーパネルＷを介して１次コイルＬ１が視認できる。この場合には、天板２の収容凹部とシースルーパネルＷが給電装置１０の筐体として機能する。 In the above-described embodiment, the housing 11 is embedded such that the upper surface 12 (power feeding surface 12a) of the housing 11 is exposed from the top plate 2. In another example, the power feeding device 10 includes, for example, an elongated housing recess formed in the top plate 2 and a see-through panel W fitted in the opening of the housing recess. The circuit board 14 on which the primary coil L1 and the control circuit unit 13 are mounted is installed in the housing recess. The see-through panel W may be a transparent or translucent acrylic resin plate. Also in this case, the primary coil L1 can be visually recognized through the see-through panel W. In this case, the accommodation recess of the top plate 2 and the see-through panel W function as a casing of the power feeding device 10.
　上記実施形態では、複数の１次コイルＬ１の給電状態をそれぞれ表示する複数の表示ランプ１６は、天板２上において対応する１次コイルＬ１に隣接する位置に配置される。 In the above embodiment, the plurality of display lamps 16 that respectively indicate the power supply states of the plurality of primary coils L1 are arranged on the top plate 2 at positions adjacent to the corresponding primary coils L1.
　図５に示すように、複数の表示ランプ１６は天板２上の一箇所にまとめて配置されてもよい。 As shown in FIG. 5, the plurality of display lamps 16 may be arranged in one place on the top board 2.
　１次コイルＬ１の近傍に、ＬＥＤ等の発光素子よりなる発光部を設けてもよい。図６に示す例では、回路基板１４において、各１次コイルＬ１の内側（または外側）に、１次コイルＬ１の形状に適合した形状の照明ランプ４０が実装されている。天板２に設けられた操作スイッチ４１と明るさセンサ４２がシステム制御部３１に接続されている。システム制御部３１は、操作スイッチ４１のオン操作に応答して照明ランプ４０を点灯させる。明るさセンサ４２は周囲の明るさをモニタし、予め定めた暗さを検出したとき、システム制御部３１に検出信号を供給する。システム制御部３１は、明るさセンサ４２の検出信号に従って照明ランプ４０を点灯させる。この場合、システム制御部３１は照明制御回路として機能し、照明ランプ４０は発光部として機能する。 A light emitting unit made of a light emitting element such as an LED may be provided in the vicinity of the primary coil L1. In the example shown in FIG. 6, the illumination lamp 40 having a shape suitable for the shape of the primary coil L1 is mounted on the inside (or outside) of each primary coil L1 on the circuit board 14. An operation switch 41 and a brightness sensor 42 provided on the top plate 2 are connected to the system control unit 31. The system control unit 31 turns on the illumination lamp 40 in response to the ON operation of the operation switch 41. The brightness sensor 42 monitors the ambient brightness, and supplies a detection signal to the system control unit 31 when a predetermined darkness is detected. The system control unit 31 turns on the illumination lamp 40 according to the detection signal of the brightness sensor 42. In this case, the system control unit 31 functions as an illumination control circuit, and the illumination lamp 40 functions as a light emitting unit.
　この構造によれば、ユーザは操作スイッチ４１を操作して照明ランプ４０を手動で点灯させて１次コイルＬ１を明るく照らすことで、１次コイルＬ１の外縁部等を目視できる。特に、周囲が暗いときに１次コイルＬ１の目視が容易になる。また、周囲が予め定めた暗さになったとき、システム制御部３１は明るさセンサ４２の検出信号に従って照明ランプ４０を自動的に点灯し１次コイルＬ１を明るく照らすことで、周囲が暗いときでも、ユーザは１次コイルＬ１を目視できる。さらに、照明ランプ４０による１次コイルＬ１の照明とシースルー構造との協働により、給電装置１０はハイテク感のある外観を有することができる。 According to this structure, the user can visually check the outer edge portion of the primary coil L1 by operating the operation switch 41 to manually turn on the illumination lamp 40 and illuminate the primary coil L1. In particular, visual observation of the primary coil L1 is facilitated when the surroundings are dark. In addition, when the surroundings become a predetermined darkness, the system control unit 31 automatically turns on the illumination lamp 40 according to the detection signal of the brightness sensor 42 and brightly illuminates the primary coil L1, so that the surroundings are dark. However, the user can see the primary coil L1. Furthermore, the power supply apparatus 10 can have a high-tech appearance by the cooperation of the illumination of the primary coil L1 by the illumination lamp 40 and the see-through structure.
　例えば、システム制御部３１は、操作スイッチ４１のオン操作に応答して照明ランプ４０を最も明るい度で発光させ、時間が経過するにしたがって、その照度を低下させ、やがて消灯させるように制御してもよい。 For example, the system control unit 31 controls the lighting lamp 40 to emit light at the brightest level in response to the ON operation of the operation switch 41, to reduce the illuminance as time passes, and to turn off the light eventually. Also good.
　システム制御部３１は、専用の照明ランプ４０に代えて、図１に示す表示ランプ１６により１次コイルＬ１を照明してもよい。例えば、システム制御部３１は操作スイッチ４１と明るさセンサ４２からの信号に従って、表示ランプ１６を明るく発光させる。ユーザは、周囲が暗いときでも１次コイルＬ１を目視できる。この例では、表示ランプ１６が発光部として機能する。 The system control unit 31 may illuminate the primary coil L1 with the display lamp 16 shown in FIG. 1 instead of the dedicated illumination lamp 40. For example, the system control unit 31 causes the display lamp 16 to emit light in accordance with signals from the operation switch 41 and the brightness sensor 42. The user can see the primary coil L1 even when the surroundings are dark. In this example, the display lamp 16 functions as a light emitting unit.
　図７に示すように、給電装置１０は可搬型でもよい。この給電装置１０の筐体１１は偏平形状を有する。偏平の筐体１１内に配置された回路基板１４の中央位置には、複数の１次コイルＬ１からなるアレイが一列に実装されている。高周波インバータ３０、システム制御部３１、及び電源回路３２は、回路基板１４において例えば１次コイルＬ１の近傍に実装されている。筐体１１の上板１１ａは、複数の１次コイルＬ１に対応する位置すなわち給電面１２ａに設けられた透明のシースルーパネルＷを含む。シースルーパネルＷは半透明でもよい。図示した例では、１次コイルＬ１にそれぞれ対応する表示ランプ１６は、上板１１ａの一箇所にまとめて配置してもよい。 As shown in FIG. 7, the power feeding device 10 may be portable. The casing 11 of the power supply apparatus 10 has a flat shape. An array of a plurality of primary coils L1 is mounted in a row at the center position of the circuit board 14 arranged in the flat casing 11. The high frequency inverter 30, the system control unit 31, and the power supply circuit 32 are mounted on the circuit board 14 in the vicinity of, for example, the primary coil L1. The upper plate 11a of the housing 11 includes a transparent see-through panel W provided at a position corresponding to the plurality of primary coils L1, that is, the power supply surface 12a. The see-through panel W may be translucent. In the illustrated example, the display lamps 16 respectively corresponding to the primary coils L1 may be collectively arranged at one place on the upper plate 11a.
　可搬型の給電装置１０は、例えば、机１の天板２の上に置いたり、床の上に置いたり、図９（ａ）に示すように、部屋４５の壁４６に嵌め込まれたり、図９（ｂ）に示すように、机１の天板２に嵌め込まれて使用され得る。給電装置１０は床、家具等の構造材に嵌め込まれてもよい。 The portable power supply device 10 is placed on the top plate 2 of the desk 1, placed on the floor, or fitted into the wall 46 of the room 45 as shown in FIG. 9 (b), it can be used by being fitted into the top plate 2 of the desk 1. The power feeding device 10 may be fitted into a structural material such as a floor or furniture.
　給電装置１０は、１次コイルＬ１がシースルーパネルＷを介して外部から見えない状態と、１次コイルＬ１がシースルーパネルＷを介して外部から見える状態に切り替えるための遮蔽部材を備えることができる。図８（ａ）（ｂ）に示す例では、遮蔽部材は、筐体１１内に移動可能に設けられた遮蔽板４７である。遮蔽板４７は、１次コイルＬ１がシースルーパネルＷを介して外部から見えない遮蔽位置（図８（ａ））と、１次コイルＬ１がシースルーパネルＷを介して外部から見える開位置（図８（ｂ））との間で移動する。システム制御部３１は、筐体１１に設けられた駆動スイッチ４８の操作に応答して、遮蔽板４７を遮蔽位置と開位置とに移動させる。この場合、システム制御部３１は、遮蔽制御回路として機能する。 The power feeding device 10 can include a shielding member for switching between a state in which the primary coil L1 is not visible from the outside through the see-through panel W and a state in which the primary coil L1 is visible from the outside through the see-through panel W. In the example shown in FIGS. 8A and 8B, the shielding member is a shielding plate 47 that is movably provided in the housing 11. The shielding plate 47 has a shielding position where the primary coil L1 cannot be seen from the outside through the see-through panel W (FIG. 8A) and an open position where the primary coil L1 can be seen from the outside via the see-through panel W (FIG. 8). (B)). The system control unit 31 moves the shielding plate 47 between the shielding position and the open position in response to the operation of the drive switch 48 provided in the housing 11. In this case, the system control unit 31 functions as a shielding control circuit.
　遮蔽部材は、シースルーパネルＷの上側（下側でもよい）に設けられた液晶シャッターのような電子シャッター素子５０でもよい。電子シャッター素子５０は、１次コイルＬ１がシースルーパネルＷを介して外部から見えない遮蔽状態（図１０（ａ））と、１次コイルＬ１がシースルーパネルＷを介して外部から見える開状態（図１０（ｂ））とに切り替えられる。電子シャッター素子５０の一例は液晶フィルムである。システム制御部３１は、例えば天板２に設けられた駆動スイッチ５１の操作に応答して、電子シャッター素子５０を遮蔽状態または開状態に駆動する。 The shielding member may be an electronic shutter element 50 such as a liquid crystal shutter provided on the upper side (or lower side) of the see-through panel W. The electronic shutter element 50 is in a shielded state in which the primary coil L1 is not visible from the outside through the see-through panel W (FIG. 10A), and in an open state in which the primary coil L1 is visible from the outside through the see-through panel W (see FIG. 10 (b)). An example of the electronic shutter element 50 is a liquid crystal film. For example, the system control unit 31 drives the electronic shutter element 50 in a shielded state or an open state in response to an operation of a drive switch 51 provided on the top plate 2.
　図１１（ａ）（ｂ）に示すように、給電装置１０のシステム制御部３１は、高周波インバータ３０からの存在検出信号に基づいて電気機器２０の存在を検出したとき、電子シャッター素子５０を開状態に駆動してもよい。電気機器２０の載置に応答して電子シャッター素子５０が自動的に開状態になるので、ユーザは電子シャッター素子５０及びシースルーパネルＷ（Ｗ）を介して１次コイルＬ１を目視することができる。 As shown in FIGS. 11A and 11B, when the system control unit 31 of the power supply apparatus 10 detects the presence of the electric device 20 based on the presence detection signal from the high frequency inverter 30, the electronic shutter element 50 is opened. You may drive to the state. Since the electronic shutter element 50 is automatically opened in response to the placement of the electric device 20, the user can visually observe the primary coil L1 via the electronic shutter element 50 and the see-through panel W (W). .
　電子シャッター素子５０は、シースルーパネルＷ（Ｗ）の上側（または下側）に重ね合わされた液晶フィルムに限定されず、電子シャッター素子５０はシースルーパネルＷに内蔵されてもよい。 The electronic shutter element 50 is not limited to the liquid crystal film superimposed on the upper side (or the lower side) of the see-through panel W (W), and the electronic shutter element 50 may be incorporated in the see-through panel W.
　電子シャッター素子５０は、液晶シャッターに限定されず、例えば透明電極と有機ＥＬ透明ディスプレーとを含む有機ＥＬシャッターでもよい。 The electronic shutter element 50 is not limited to a liquid crystal shutter, and may be, for example, an organic EL shutter including a transparent electrode and an organic EL transparent display.
　遮蔽部材は、図１２（ａ）に示す矢印方向に移動する一対の開閉板５３でもよい。天板２に設けた駆動スイッチ５１の操作に応答して、システム制御部３１は、開閉板５３を、１次コイルＬ１がシースルーパネルＷを介して外部から見えない遮蔽位置と、１次コイルＬ１がシースルーパネルＷを介して外部から見える開位置とに移動させる。 The shield member may be a pair of opening / closing plates 53 that move in the direction of the arrow shown in FIG. In response to the operation of the drive switch 51 provided on the top plate 2, the system control unit 31 moves the open / close plate 53 between the shielding position where the primary coil L1 cannot be seen from the outside through the see-through panel W, and the primary coil L1. Is moved to an open position visible from the outside through the see-through panel W.
　図１３に示す例では、シースルーパネルＷは、１次コイルＬ１と対面する位置に印刷された第３のコイルＬ３を有する。この第３のコイルＬ３は、対応する１次コイルＬ１の交番磁束と交鎖する。さらに、第３のコイルＬ３が発生した誘起電圧を信号処理する信号処理回路５５がシースルーパネルＷに印刷されてもよい。第３のコイルＬ３及び信号処理回路５５は、シースルーパネルＷの裏面に印刷してもよいが、表面に印刷してもよい。第３のコイルＬ３及び信号処理回路５５の一方または両方は、シースルーパネルＷの内部に埋設されてもよい。 In the example shown in FIG. 13, the see-through panel W has a third coil L3 printed at a position facing the primary coil L1. The third coil L3 is linked with the alternating magnetic flux of the corresponding primary coil L1. Further, a signal processing circuit 55 that performs signal processing on the induced voltage generated by the third coil L3 may be printed on the see-through panel W. The third coil L3 and the signal processing circuit 55 may be printed on the back surface of the see-through panel W, but may be printed on the front surface. One or both of the third coil L3 and the signal processing circuit 55 may be embedded in the see-through panel W.
　信号処理回路５５は、第３のコイルＬ３が発生した誘起電圧に基づいて、金属の検知及び／または１次コイルＬ１の通電状態の検知を行うことができる。信号処理回路５５は、第３のコイルＬ３が発生する誘起電圧に基づいて、表示ランプ１６の点灯を制御してもよい。信号処理回路５５は、第３のコイルＬ３を介して電気機器２０とデータ通信を行ってもよい。 The signal processing circuit 55 can detect the metal and / or the energized state of the primary coil L1 based on the induced voltage generated by the third coil L3. The signal processing circuit 55 may control lighting of the display lamp 16 based on the induced voltage generated by the third coil L3. The signal processing circuit 55 may perform data communication with the electrical device 20 via the third coil L3.
　図７に示す給電装置１０では、１次コイルＬ１は筐体１１内で不動であるが、図１４（ａ）～（ｃ）の給電装置１０では、１次コイルＬ１が移動可能であり、シースルーパネルＷは１次コイルＬ１の可動範囲を覆うように設けられている。例えば、筐体１１の上板全域が、１次コイルＬ１の可動範囲であり、シースルーパネルＷで形成され得る。例えば、システム制御部３１は、筐体１１に設けられた駆動スイッチ５１の操作に応答して、１次コイルＬ１を実装した回路基板１４を移動させる。この構造によれば、例えば、図１４（ａ）（ｂ）（ｃ）に示す位置に回路基板１４（１次コイルＬ１）の位置は変更され、ユーザにとって、給電を受ける電気機器２０の配置の自由度が向上する。 In the power feeding device 10 shown in FIG. 7, the primary coil L1 is immobile in the housing 11, but in the power feeding device 10 in FIGS. 14 (a) to 14 (c), the primary coil L1 is movable, so Panel W is provided so as to cover the movable range of primary coil L1. For example, the entire upper plate of the housing 11 is a movable range of the primary coil L1 and can be formed by the see-through panel W. For example, the system control unit 31 moves the circuit board 14 on which the primary coil L1 is mounted in response to an operation of the drive switch 51 provided in the housing 11. According to this structure, for example, the position of the circuit board 14 (primary coil L1) is changed to the position shown in FIGS. The degree of freedom is improved.
　図１４の給電装置１０の筐体１１を省略してもよい。この場合、１次コイルＬ１を実装した回路基板１４は、机１に形成された凹部に移動可能に配置され、シースルーパネルＷはその凹部の開口部に嵌め込まれる。シースルーパネルＷは透明又は半透明のアクリル樹脂板であり得る。給電装置１０は、例えば机１の天板２に埋設され得るが、机１以外の例えば、家具、床、壁、鴨居、柱等の構造材に埋設されてもよい。 14 may be omitted from the housing 11 of the power supply apparatus 10 of FIG. In this case, the circuit board 14 on which the primary coil L1 is mounted is movably disposed in a recess formed in the desk 1, and the see-through panel W is fitted into the opening of the recess. The see-through panel W may be a transparent or translucent acrylic resin plate. The power supply apparatus 10 can be embedded in, for example, the top plate 2 of the desk 1, but may be embedded in a structural material other than the desk 1, such as furniture, a floor, a wall, a duck, and a pillar.
　給電装置１０は、給電面１２ａに金属異物が載置されたこと検知する金属検知器と、金属検知器の検知結果に従って１次コイルＬ１の給電動作を停止させる機能とを備えてもよい。 The power supply apparatus 10 may include a metal detector that detects that a metal foreign object is placed on the power supply surface 12a, and a function of stopping the power supply operation of the primary coil L1 according to the detection result of the metal detector.
　給電装置１０は、複数の１次コイルＬ１を備えることが好ましいが、１個の１次コイルＬ１を備えてもよい。複数の１次コイルＬ１は、一例ではライン状に配置されるが、複数の方向に配置されてもよく、例えば、円柱状の曲面または球面等の３次元面に沿って配置してもよい。 The power feeding apparatus 10 preferably includes a plurality of primary coils L1, but may include a single primary coil L1. The plurality of primary coils L1 are arranged in a line in one example, but may be arranged in a plurality of directions, for example, along a three-dimensional surface such as a cylindrical curved surface or a spherical surface.
　給電装置１０は、２次コイルＬ２が外部から視認できるように構成された電気機器２０及び／または受電装置３４と組合せて利用してもよい。この場合、電気機器２０は、さらに効率良く受電できる。 The power feeding device 10 may be used in combination with the electric device 20 and / or the power receiving device 34 configured so that the secondary coil L2 can be visually recognized from the outside. In this case, the electric device 20 can receive power more efficiently.
　１次コイルＬ１の全体又は外縁部が給電装置１０の外側から視認できる限り、シースルーパネルＷに、印刷や塗装等によって色、模様、文字等を施してもよい。色、模様、文字等の施すことによって、給電装置１０の意匠性がさらに増すことになる。 As long as the whole or outer edge of the primary coil L1 is visible from the outside of the power supply device 10, the see-through panel W may be provided with a color, pattern, character, or the like by printing or painting. By applying colors, patterns, characters, etc., the design of the power supply apparatus 10 is further increased.
　シースルーパネルＷは給電装置１０から着脱可能でもよい。この場合、ユーザは、装飾の付されたシースルーパネルと、装飾の付されていない単に透明又は半透明のシースルーパネルＷとを取り替えることができる。シースルーパネルＷの選択の自由度が増え、給電装置１０の意匠性が増す。 The see-through panel W may be detachable from the power supply device 10. In this case, the user can replace the see-through panel with decoration and the simply transparent or translucent see-through panel W without decoration. The degree of freedom in selecting the see-through panel W is increased, and the design of the power supply device 10 is increased.
　シースルーパネルＷの材料は、１次コイルＬ１の発生した交番磁束を給電面１２ａから放出できる透明又は半透明材料であれば限定されない。例えば、アクリル樹脂等のプラスチックやガラス等がシースルーパネルＷの材料として使用できる。熱や圧力の変化に伴って、シースルーパネルＷの表面の色の濃度が変化し、下方の１次コイルＬ１が視認可能になる材質であってもよい。 The material of the see-through panel W is not limited as long as it is a transparent or translucent material that can release the alternating magnetic flux generated by the primary coil L1 from the power supply surface 12a. For example, plastic such as acrylic resin, glass, or the like can be used as the material of the see-through panel W. A material in which the color density of the surface of the see-through panel W changes with changes in heat and pressure, and the lower primary coil L1 can be visually recognized may be used.
　上記実施形態において、１次コイルＬ１がどの角度からみても見えるようにしたり、１次コイルＬ１の真上等の限られた方向のみから１次コイルＬ１を視認できるようにしてもよい。例えば、シースルーパネルＷに偏光レンズ、偏光フィルターなどの光学素子を組み合わせることにより実施することができる。 In the above-described embodiment, the primary coil L1 may be visible from any angle, or the primary coil L1 may be visible only from a limited direction such as directly above the primary coil L1. For example, it can be implemented by combining the see-through panel W with optical elements such as a polarizing lens and a polarizing filter.
　机１等の家具、壁や床等の構造材、及び什器に内蔵された給電装置１０と、図７に示す可搬型の給電装置１０とを組み合わせて使用してもよい。 The power supply device 10 built in furniture such as the desk 1, structural materials such as walls and floors, and fixtures, and the portable power supply device 10 shown in FIG. 7 may be used in combination.
　１次コイルＬ１と回路基板１４が視認できてもよく、１次コイルＬ１のみ、１次コイルＬ１と磁性コアのみが外部から視認できれば、回路基板１４は視認できなくてもよい。１次コイルＬ１は回路基板１４から離れた場所に配置されてもよい。この場合、１次コイルＬ１は、例えばリード線を通じて回路基板１４と接続される。 The primary coil L1 and the circuit board 14 may be visible, or only the primary coil L1 may be visually invisible if only the primary coil L1 and the magnetic core are visible from the outside. The primary coil L1 may be disposed at a location away from the circuit board 14. In this case, the primary coil L1 is connected to the circuit board 14 through, for example, a lead wire.

Claims (17)

  1. 　２次コイルに非接触で誘起電圧を発生させる非接触給電装置であって、
    　給電面と、
    　前記給電面を介して出力される交番磁束を生成する１次コイルと、
    　前記１次コイルの全体又は外縁部が前記非接触給電装置の外側から視認できるように、前記給電面の全部または一部を形成する透明又は半透明のシースルーパネルとを備えることを特徴とする非接触給電装置。     A non-contact power feeding device that generates an induced voltage in a non-contact manner in a secondary coil,
    A feeding surface;
    A primary coil that generates an alternating magnetic flux output through the power supply surface;
    A non-transparent see-through panel that forms all or part of the power feeding surface so that the entire or outer edge of the primary coil can be seen from the outside of the non-contact power feeding device. Contact power supply device.
  2. 　請求項１に記載の非接触給電装置は、
    　前記１次コイルを実装した回路基板を更に備え、前記前記シースルーパネルは、前記回路基板が構造材の収容凹部に配置された状態で前記収容凹部の開口部を塞ぐことを特徴とする非接触給電装置。     The contactless power supply device according to claim 1 is:
    The non-contact power feeding, further comprising: a circuit board on which the primary coil is mounted, wherein the see-through panel closes the opening of the housing recess in a state where the circuit board is disposed in the housing recess of the structural material. apparatus.
  3. 　請求項２に記載の非接触給電装置において、
    　前記１次コイルを実装した前記回路基板は、前記１次コイルに流される高周波電流を生成する制御回路部を更に含み、前記シースルーパネルは、前記非接触給電装置の外側から前記１次コイル及び前記制御回路部が視認できるように構成されている、非接触給電装置。     In the non-contact electric power feeder of Claim 2,
    The circuit board on which the primary coil is mounted further includes a control circuit unit that generates a high-frequency current that is passed through the primary coil, and the see-through panel is connected to the primary coil and the outside from the non-contact power feeding device. A non-contact power feeding device configured so that the control circuit unit can be visually recognized.
  4. 　請求項２又は３に記載の非接触給電装置は、
    　前記１次コイル及び前記回路基板を収容する筐体を更に備え、
    　前記シースルーパネルは、前記構造材の前記収容凹部に配置された前記筐体の給電面を提供することを特徴とする非接触給電装置。     The contactless power supply device according to claim 2 or 3,
    A housing for accommodating the primary coil and the circuit board;
    The said see-through panel provides the electric power feeding surface of the said housing | casing arrange | positioned at the said accommodation recessed part of the said structural material, The non-contact electric power feeder characterized by the above-mentioned.
  5. 　請求項２～４のいずれか１つに記載の非接触給電装置において、
    　前記１次コイルを実装した前記回路基板は、前記回路基板の面積より大きい面積の前記シースルーパネルに対向して配置され、
    　前記回路基板は、前記シースルーパネルの範囲内で移動可能であることを特徴とする非接触給電装置。     The contactless power feeding device according to any one of claims 2 to 4,
    The circuit board on which the primary coil is mounted is disposed to face the see-through panel having an area larger than the area of the circuit board,
    The non-contact power feeding apparatus according to claim 1, wherein the circuit board is movable within a range of the see-through panel.
  6. 　請求項１～５のいずれか１つに記載の非接触給電装置において、
    　前記シースルーパネルは、色、模様、及び文字から選択された少なくとも一つを有することを特徴とする非接触給電装置。     The contactless power feeding device according to any one of claims 1 to 5,
    The see-through panel has at least one selected from a color, a pattern, and a character.
  7. 　請求項１～６のいずれか１つに記載の非接触給電装置において、
    　前記シースルーパネルには、前記１次コイルの交番磁束と交鎖して誘起電圧を発生する第３のコイルと、その第３のコイルが発生する誘起電圧を信号処理する信号処理回路とが設けられていることを特徴とする非接触給電装置。     The contactless power feeding device according to any one of claims 1 to 6,
    The see-through panel is provided with a third coil that generates an induced voltage by crossing with the alternating magnetic flux of the primary coil, and a signal processing circuit that performs signal processing on the induced voltage generated by the third coil. The non-contact electric power feeder characterized by the above-mentioned.
  8. 　請求項２～７のいずれか１つに記載の非接触給電装置において、
    　前記シースルーパネルは、前記収容凹部又は筐体に対して着脱可能に取着されていることを特徴とする非接触給電装置。     The contactless power supply device according to any one of claims 2 to 7,
    The contactless power supply device, wherein the see-through panel is detachably attached to the housing recess or the housing.
  9. 　請求項１～８のいずれか１つに記載の非接触給電装置において、
    　前記１次コイルは、複数個であることを特徴とする非接触給電装置。     The contactless power feeding device according to any one of claims 1 to 8,
    The non-contact electric power feeder characterized by the above-mentioned.
  10. 　請求項１～９のいずれか１つに記載の非接触給電装置は、
    　前記シースルーパネルの近傍位置に設けられて前記１次コイルを照明する発光部と、
    　操作スイッチ又は明るさセンサからの信号に従って前記発光部の発光を制御する照明制御回路とを更に備えることを特徴とする非接触給電装置。     The contactless power feeding device according to any one of claims 1 to 9,
    A light emitting unit provided near the see-through panel to illuminate the primary coil;
    A non-contact power feeding apparatus, further comprising: an illumination control circuit that controls light emission of the light emitting unit according to a signal from an operation switch or a brightness sensor.
  11. 　請求項１０に記載の非接触給電装置において、
    　前記照明制御回路は、前記発光部の発光照度を時間の経過に伴って低下させるよう、前記発光部の発光を制御することを特徴とする非接触給電装置。     The contactless power supply device according to claim 10,
    The non-contact power feeding device, wherein the illumination control circuit controls light emission of the light emitting unit so as to decrease light emission illuminance of the light emitting unit with time.
  12. 　請求項１～１１のいずれか１つに記載の非接触給電装置は、
    　給電中でない前記１次コイルが前記シースルーパネルを介して視認できないように、前記前記１次コイルを遮蔽する遮蔽部材を更に備えることを特徴とする非接触給電装置。     The contactless power feeding device according to any one of claims 1 to 11,
    The non-contact electric power feeder characterized by further providing the shielding member which shields the said primary coil so that the said primary coil which is not supplying electric power cannot be visually recognized through the said see-through panel.
  13. 　請求項１２に記載の非接触給電装置において、
    　前記遮蔽部材は、液晶シャッターであり、駆動スイッチ又は電気機器検知センサからの信号に従って前記液晶シャッターを制御する遮蔽制御回路を更に備えることを特徴とする非接触給電装置。     The contactless power supply device according to claim 12,
    The non-contact power feeding device, wherein the shielding member is a liquid crystal shutter, and further includes a shielding control circuit that controls the liquid crystal shutter according to a signal from a drive switch or an electric device detection sensor.
  14. 　請求項１２に記載の非接触給電装置において、
    　前記遮蔽部材は、透明電極と有機ＥＬ透明ディスプレーとを含む有機ＥＬシャッターであり、駆動スイッチ又は電気機器検知センサからの信号に従って前記有機ＥＬシャッターを制御する遮蔽制御回路を更に備えることを特徴とする非接触給電装置。     The contactless power supply device according to claim 12,
    The shielding member is an organic EL shutter including a transparent electrode and an organic EL transparent display, and further includes a shielding control circuit that controls the organic EL shutter according to a signal from a drive switch or an electric device detection sensor. Non-contact power feeding device.
  15. 　請求項１２に記載の非接触給電装置において、
    　前記遮蔽部材は、前記シースルーパネルの上側又は下側に設けられた開閉板であり、
    　駆動スイッチ又は電気機器検知センサからの信号に従って前記開閉板を移動させる遮蔽制御回路を更に備えることを特徴とする非接触給電装置。     The contactless power supply device according to claim 12,
    The shielding member is an opening / closing plate provided on the upper or lower side of the see-through panel,
    A non-contact power feeding apparatus, further comprising a shielding control circuit that moves the opening and closing plate according to a signal from a drive switch or an electric device detection sensor.
  16. 　請求項１に記載の非接触給電装置は、前記１次コイルによって生成された前記交番磁束を出力する前記給電面を含む筐体を更に備え、
    　前記筐体は、前記１次コイルを移動不能または移動可能に収容しており、
    　前記シースルーパネルは、前記１次コイルの全体または外縁部が前記筐体の外部から視認できるように、前記筐体において前記給電面の一部または全部に対応する位置に設けられていることを特徴とする非接触給電装置。     The contactless power supply device according to claim 1, further comprising a housing including the power supply surface that outputs the alternating magnetic flux generated by the primary coil.
    The housing accommodates the primary coil so as not to be movable or movable,
    The see-through panel is provided at a position corresponding to a part or all of the power feeding surface in the casing so that the entire primary coil or an outer edge portion can be visually recognized from the outside of the casing. A non-contact power feeding device.
  17. 　最外面と、請求項１から１６のいずれか一項の非接触給電装置とを備え、前記非接触給電装置の前記給電面が前記最外面と面一であることを特徴とする家具。 A furniture comprising: an outermost surface; and the non-contact power feeding device according to any one of claims 1 to 16, wherein the power feeding surface of the non-contact power feeding device is flush with the outermost surface.
PCT/JP2013/006028 2012-11-06 2013-10-09 Contactless power feed device WO2014073161A1 (en)

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