WO2017154174A1 - Système d'alimentation électrique sans fil, dispositif de côté d'alimentation électrique, et dispositif de côté de réception d'électricité - Google Patents

Système d'alimentation électrique sans fil, dispositif de côté d'alimentation électrique, et dispositif de côté de réception d'électricité Download PDF

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Publication number
WO2017154174A1
WO2017154174A1 PCT/JP2016/057634 JP2016057634W WO2017154174A1 WO 2017154174 A1 WO2017154174 A1 WO 2017154174A1 JP 2016057634 W JP2016057634 W JP 2016057634W WO 2017154174 A1 WO2017154174 A1 WO 2017154174A1
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WO
WIPO (PCT)
Prior art keywords
power
identifier
power receiving
side device
unit
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Application number
PCT/JP2016/057634
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English (en)
Japanese (ja)
Inventor
野田　正樹
市川　勝英
秋山　仁
城杉　孝敏
Original Assignee
株式会社日立製作所
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Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to JP2016563862A priority Critical patent/JP6205509B1/ja
Priority to PCT/JP2016/057634 priority patent/WO2017154174A1/fr
Publication of WO2017154174A1 publication Critical patent/WO2017154174A1/fr

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    • 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
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting 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
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices

Definitions

  • the present invention relates to a wireless power feeding system, a power feeding side device, and a power receiving side device.
  • Patent Document 1 states that “a wireless power receiver configured to receive power wirelessly from a wireless power transmitter, a switchable element configured to couple a receiving coil to a ground voltage, and the receiving coil And a detector configured to detect a pulse generated by another wireless power device.
  • an identifier for identifying each of the plurality of power reception devices is assigned to each of the plurality of power reception devices. There is. In this case, it is important to assign an appropriate identifier to each of the plurality of power receiving apparatuses.
  • Patent Document 1 there is no description about assigning an identifier to each of a plurality of power receiving devices.
  • an object of the present invention is to provide a technique for assigning an appropriate identifier to each of a plurality of power receiving apparatuses.
  • a wireless power feeding system includes a power feeding side device that wirelessly transmits power via a power feeding side antenna, and a plurality of power sources that use the power received via the power receiving side antenna as a power source.
  • a power feeding side device wherein the power feeding side device is mounted with the plurality of power receiving side devices, and the plurality of power receiving side devices receive the power one by one at a power receiving position.
  • An identifier insertion unit that inserts an identifier corresponding to the power receiving position of the mobile platform to be moved into the power, wherein each of the plurality of power receiving side devices detects the identifier from the received power. It has a detection part and a storage part which memorizes the identifier.
  • an appropriate identifier can be assigned to each of the plurality of power receiving apparatuses.
  • FIG. 1 is a schematic side view showing an example of a machine tool to which a wireless power feeding system according to a first embodiment is applied. It is a figure explaining a rotary tool. It is a figure explaining the operation example of identifier provision mode. It is a figure explaining an electric power feeding side apparatus and an electric power receiving side apparatus. It is the figure which showed the block structural example of the control apparatus of the electric power feeding side apparatus. It is the figure which showed the block structural example of the control apparatus of a receiving device. It is the figure which showed the data structural example of the memory
  • FIG. 1 is a schematic side view showing an example of a machine tool 1 to which the wireless power feeding system according to the first embodiment is applied.
  • FIG. 1 shows a control device C for controlling the machine tool 1 in addition to the machine tool 1.
  • the control device C is, for example, a device such as a control panel or a personal computer, and is communicably connected to the machine tool 1 via a wireless or wired network. Further, FIG. 1 shows an object A to be processed by the machine tool 1.
  • the machine tool 1 has a rotary tool 2 and a table 3.
  • the rotary tool 2 is a tool such as a drill, for example.
  • the workpiece A is fixed to the table 3 and processed by the rotary tool 2.
  • the table 3 is a movable table, for example, and moves on a horizontal plane.
  • FIG. 2 is a diagram for explaining the rotary tool 2.
  • FIG. 2 the same components as those in FIG. 1.
  • the schematic side view of the rotary tool 2 is shown on the right side of FIG.
  • the rotary tool 2 includes a fixed base 2a, a rotary base 2b, a tool 2c, a power supply side device 10, and a plurality of power receiving side devices 20.
  • the arrow A1 in FIG. 2 shows the fixed base 2a and the power feeding side device 10 as viewed from the rotary base 2b side.
  • the arrow A2 in FIG. 2 shows the turntable 2b and the plurality of power receiving devices 20 as viewed from the fixed stand 2a side.
  • the fixed base 2a is fixed to the machine tool 1.
  • the power supply side device 10 is attached to the surface of the fixed base 2a facing the rotating base 2b.
  • the turntable 2b is a circular flat plate, and the tool 2c passes through the center of the circular shape.
  • the turntable 2b is fixed to the tool 2c and rotates with the rotation of the tool 2c.
  • a plurality of power receiving devices 20 are mounted on the surface of the turntable 2b facing the fixed base 2a.
  • the plurality of power receiving side devices 20 are detachably attached to the turntable 2b at equal intervals in a circular shape. In the example of FIG. 2, twelve power receiving devices 20 are attached to the turntable 2b, but the number is not limited to this.
  • the tool 2c is, for example, a drill.
  • One end of the tool 2c passes through the center hole of the fixed base 2a and is connected to a driving device (not shown) such as a stepping motor or an actuator.
  • the tool 2c is rotated by the connected driving device.
  • the operation of the drive device is controlled by the control device C or the power supply side device 10.
  • the rotation angle, the rotation amount, the rotation speed, and the like of the drive device are controlled by the control device C or the power supply side device 10.
  • Each of the plurality of power receiving devices 20 attached to the turntable 2b includes, for example, sensors (not shown) that sense various states of the tool 2c.
  • Each sensor of the plurality of power receiving side devices 20 senses the state of the tool 2c by the electric power transmitted (powered) from the power feeding side device 10, and each of the plurality of power receiving side devices 20 is a tool sensed by the sensor.
  • the data 2c is transmitted to the power supply side device 10.
  • the power feeding side device 10 transmits data transmitted from the plurality of power receiving side devices 20 to the control device C.
  • the power supply side device 10 has power supply side antennas L11 and L12, as indicated by the arrow A1 in FIG.
  • Each of the plurality of power receiving devices 20 includes a power receiving antenna L21 as indicated by the arrow A2 in FIG. In FIG. 2, only the power receiving antenna L ⁇ b> 21 of one power receiving device 20 is shown, and the power receiving antennas of other power receiving devices 20 are not shown.
  • the power feeding side device 10 transmits power to the plurality of power receiving side devices 20 via the power feeding side antennas L11 and L12. For example, the power feeding side device 10 transmits power to the plurality of power receiving side devices 20 by at least one of a magnetic field, an electric field, and an electromagnetic wave. In addition, the power feeding side device 10 receives data transmitted from the plurality of power receiving side devices 20 via the power feeding side antenna L12.
  • Each of the plurality of power receiving devices 20 receives the power transmitted from the power feeding device 10 via the power receiving antenna L21. In addition, each of the plurality of power receiving devices 20 transmits data acquired by the sensor to the power feeding device 10 via the power receiving antenna L21.
  • the size of the power feeding side antenna L11 is the same (including substantially the same, hereinafter the same) size as the power receiving side antenna L21 of each power receiving side device 20, or does not overlap with the power receiving side antenna L21 of the adjacent power receiving side device 20. It is a size.
  • the power feeding side device 10 can transmit power only to one power receiving side device 20 by transmitting power using the power feeding side antenna L11.
  • the power feeding side device 10 can transmit power only to the power receiving side device 20 arranged at a position facing the power feeding side antenna L11.
  • the size of the power feeding side antenna L12 is a size surrounding each power receiving side antenna L21 of the power receiving side device 20 fixed in a circular shape on the turntable 2b.
  • the power feeding side device 10 can transmit power to all of the plurality of power receiving side devices 20 by transmitting power using the power feeding side antenna L12.
  • the power supply side device 10 can transmit power to all of the plurality of power receiving side devices 20 even when the turntable 2b is rotating.
  • the operation of the wireless power feeding system having the power feeding side device 10 and the plurality of power receiving side devices 20 is roughly divided into two operations.
  • One operation is an operation of assigning an identifier to each of the plurality of power receiving devices 20.
  • Another operation is an operation in which the power supply side device 10 and the plurality of power reception side devices 20 perform data communication using the assigned identifier.
  • the respective operations may be referred to as an identifier assignment mode and a data communication mode.
  • the power feeding side device 10 transmits power to the plurality of power receiving side devices 20 via the power feeding side antenna L11 in the identifier assignment mode. Thereby, the power feeding side device 10 can transmit power only to a predetermined power receiving side device 20 among the plurality of power receiving side devices 20. For example, the power feeding side device 10 can transmit power only to the power receiving side device 20 arranged at a position facing the power feeding side antenna L11 by the rotation of the turntable 2b. And the electric power feeding side apparatus 10 can multiplex the identifier which identifies each of the several power receiving side apparatus 20 with the electric power to transmit (the multiplexing of an identifier is mentioned later), and can transmit.
  • the machine tool 1 cannot process the workpiece A in the identifier assignment mode.
  • the tool 2c rotates. This is because when the tool 2c rotates, the turntable 2b fixed to the tool 2c rotates, and the identifiers of the plurality of power receiving devices 20 cannot be transmitted to the power receiving devices 20, respectively.
  • the power supply side device 10 transmits power to the plurality of power reception side devices 20 via the power supply side antenna L12. Thereby, even if the machine tool 1 is performing a machining operation on the workpiece A (even if the turntable 2b is rotating), the power feeding side device 10 can provide power to the plurality of power receiving side devices 20. Can be transmitted, and the identifier of the power receiving device 20 to which the sensor data is to be transmitted can be multiplexed to the transmitted power (the identifier multiplexing will be described later).
  • the power receiving side device 20 can sense the state of the tool 2 c and transmit data to the power feeding side device 10 even when the machine tool 1 is performing a machining operation.
  • the shape of the electric power feeding side antennas L11 and L12 and the power receiving side antenna L21 is circular, it is not restricted to this.
  • the shapes of the power feeding side antennas L11 and L12 and the power receiving side antenna L21 may be quadrangular.
  • the shapes of the power feeding side antennas L11 and L12 and the power receiving side antenna L21 may be indicated by a square shape.
  • FIG. 3 is a diagram for explaining an operation example of the identifier assignment mode. 3, the same components as those in FIG. 2 are denoted by the same reference numerals, and the description thereof is omitted.
  • the power receiving side device 20 (12 in the example of FIG. 3) to which no identifier is assigned is attached to the turntable 2b.
  • the turntable 2b is rotated so that a predetermined portion that is determined in advance is at a predetermined reference position.
  • a predetermined portion A11 indicated by a black circle in FIG. 3 indicates a predetermined portion of the turntable 2b.
  • a reference position A12 indicated by a black triangle in FIG. 3 indicates a reference position.
  • the power receiving side device 20 shown with diagonal lines is connected to the power feeding side antenna. It arrange
  • the power feeding side device 10 transmits (provides) the identifier “1” to the power receiving side device 20 indicated by hatching via the power feeding side antenna L11.
  • the power receiving side device 20 adjacent to the left side of the power receiving side device 20 indicated by hatching is connected to the power feeding side antenna. It arrange
  • the power feeding side device 10 transmits the identifier “2” to the power receiving side device 20 adjacent to the left side of the power receiving side device 20 with a diagonal line through the power feeding side antenna L11.
  • the turntable 2b rotates by 30 degrees until the predetermined part A11 returns to the reference position A12. Then, each time the turntable 2b is rotated 30 degrees, the power feeding side device 10 increments by one with respect to the power receiving side device 20 disposed at a position facing the power feeding side antenna L11 via the power feeding side antenna L11. Send the specified identifier.
  • the identifier “1” is assigned to the power receiving side device 20 that is third counterclockwise from the predetermined part A11 of the turntable 2b. Then, from the power receiving side device 20 to which the identifier “1” is assigned, an identifier incremented in the order of “2, 3,...
  • the plurality of power receiving devices 20 are replaced when the machine tool 1 is maintained or broken, for example.
  • the power receiving side device 20 with another identifier may be attached due to an attachment error.
  • the power receiving side device 20 with the identifier “3” must be attached to the predetermined part A11 of the turntable 2b, but a power receiving side device 20 other than the identifier “3” may be attached due to an attachment error.
  • the turntable 2b has a plurality of power receiving side devices 20 mounted in a circular shape, and the plurality of power receiving side devices 20 mounted one by one can receive the power of the power feeding side device 10. It is rotated to a predetermined position (a position where the power receiving antenna L21 faces the power feeding antenna L11, hereinafter referred to as a power receiving position). And the electric power feeding side apparatus 10 transmits the identifier (The number incremented by 1 in the said example) corresponding to the electric power receiving position of the turntable 2b to the electric power receiving side apparatus 20.
  • the same identifier is given to the power receiving device 20 according to the position attached to the turntable 2b.
  • the power receiving side device 20 attached to the predetermined part A11 of the turntable 2b is always given the identifier “3”.
  • the predetermined portion A11 and the reference position A12 are examples, and are not limited thereto.
  • the reference position A12 may be at the position of the power feeding side antenna L11.
  • the identifier “1” is given to the power receiving device 20 attached to the predetermined part A11 of the turntable 2b. Further, the predetermined part A11 or the reference position A12 may be changed.
  • FIG. 4 is a diagram illustrating the power supply side device 10 and the power reception side device 20. 4, the same components as those in FIGS. 2 and 3 are denoted by the same reference numerals.
  • the plurality of power receiving devices 20 may be identified by # 1, # 2,..., #N (N is a natural number).
  • the power supply side device 10 includes a control device 11 and power supply side antennas L11 and L12.
  • the control device 11 is connected to the power feeding antennas L11 and L12.
  • the power receiving device 20 includes a power receiving antenna L21, a control device 21, and a sensor 22.
  • the control device 21 is connected to the power receiving antenna L ⁇ b> 21 and the sensor 22.
  • the control device 21 transmits data obtained by the sensing operation of the sensor 22 to the power feeding side device 10 via the power receiving side antenna L21.
  • FIG. 4 shows a configuration example of the power receiving side device 20 of “# 1”, but the power receiving side devices 20 of “# 2 to #N” have the same configuration as the power receiving side device 20 of “# 1”. Have.
  • FIG. 5 is a diagram illustrating a block configuration example of the control device 11 of the power supply side device 10.
  • the control device 11 includes a control unit 11a, an oscillation unit 11b, an amplification unit 11c, an ID (identifier) insertion unit 11d, a data ID insertion unit 11e, a demodulation unit 11f, and a capacitor 11g. , 11h.
  • FIG. 5 also shows the power feeding side antennas L11 and L12 shown in FIG.
  • the control unit 11a controls the entire control device 11.
  • the control unit 11a is configured by a CPU (Central Processing Unit), for example.
  • the control unit 11a is communicably connected to the control device C by wire or wireless.
  • the control part 11a is communicably connected with the drive device which rotates the tool 2c by wired or wireless.
  • the oscillator 11b outputs a sine wave signal having a wireless power transmission carrier frequency.
  • the amplification unit 11c amplifies the sine wave signal output from the oscillation unit 11b.
  • the ID insertion unit 11d inserts (multiplexes) an identifier in the signal output from the amplification unit 11c in accordance with the control of the control unit 11a. For example, the control unit 11a outputs an identifier incremented by 1 to the ID insertion unit 11d in the identifier assignment mode. The ID insertion unit 11d inserts the identifier output from the control unit 11a into the signal output from the amplification unit 11c. The signal (power) in which the identifier is inserted by the ID insertion unit 11d is output to the power feeding antenna L11.
  • the data ID insertion unit 11e inserts an identifier into the signal output from the amplification unit 11c under the control of the control unit 11a.
  • the control unit 11a outputs to the data ID insertion unit 11e the identifier of the power receiving device 20 that is desired to transmit data.
  • the data ID insertion unit 11e inserts the identifier output from the control unit 11a into the signal output from the amplification unit 11c.
  • the signal in which the identifier is inserted by the data ID insertion unit 11e is output to the power feeding antenna L12.
  • the demodulator 11f is connected to the power feeding antenna L12.
  • the demodulator 11f receives data transmitted from the power receiving side device 20 via the power feeding side antenna L12, and demodulates the data.
  • the demodulator 11f outputs the demodulated data to the controller 11a.
  • the capacitor 11g has one end connected to the power feeding side antenna L11 and the other end connected to the ground.
  • the capacitor 11g allows the power feeding side antenna L11 to resonate at the wireless power transmission carrier frequency.
  • the capacitor 11h has one end connected to the power feeding side antenna L12 and the other end connected to the ground.
  • the capacitor 11h makes the power feeding side antenna L12 resonate at the wireless power transmission carrier frequency.
  • the control unit 11a receives, for example, an instruction from the control device C regarding whether to operate in the identifier assignment mode or in the data communication mode. Upon receiving the mode instruction, the control unit 11a outputs mode information to the data ID insertion unit 11e, and the data ID insertion unit 11e outputs the mode information output from the control unit 11a to the signal output from the amplification unit 11c. Insert into. As a result, the mode information is transmitted from the power feeding side antenna L12 to the power receiving side devices 20 of # 1 to #N, and whether the power receiving side devices 20 of # 1 to #N operate in the identifier assignment mode or the data communication mode. It can be determined whether or not it works.
  • FIG. 6 is a diagram illustrating a block configuration example of the control device 21 of the power receiving side device 20.
  • the control device 21 includes a control unit 21a, an ID detection unit 21b, a storage unit 21c, a transmission unit 21d, capacitors 21e and 21f, and a rectification unit 21g.
  • FIG. 6 also shows the power receiving antenna L21 and the sensor 22 shown in FIG.
  • the rectifying unit 21g is connected to the power receiving side antenna L21 via the capacitor 21f.
  • the rectifying unit 21g rectifies (converts into direct current) the power received via the power receiving antenna L21 and outputs the rectified power to each unit of the control device 21 and the sensor 22.
  • the capacitor 21f allows the power receiving antenna L21 to resonate at the wireless power transmission carrier frequency.
  • Each part of the control device 21 operates using the power rectified by the rectifier 21g as a power source.
  • the sensor 22 performs a sensing operation using the power rectified by the rectifying unit 21g as a power source, and outputs data obtained by the sensing operation to the control unit 21a.
  • the control unit 21a controls the entire control device 21.
  • the control unit 21a is configured by a CPU, for example.
  • the ID detection unit 21b detects the identifier inserted in the power.
  • the ID detection unit 21b outputs the detected identifier to the control unit 21a.
  • the control unit 21a stores the identifier detected by the ID detection unit 21b in the storage unit 21c in the identifier assignment mode.
  • the storage unit 21c includes, for example, a memory such as a RAM (Random Access Memory) or a ROM (Read Only Memory).
  • FIG. 7 is a diagram showing a data configuration example of the storage unit 21c.
  • FIG. 7 shows a data configuration example of each storage unit 21c of the power receiving side devices 20 of “# 1 to #N”.
  • identifiers transmitted by the power supply side device 10 are stored.
  • the predetermined part A ⁇ b> 11 is aligned with the reference position A ⁇ b> 12, and each of the plurality of power receiving devices 20 can receive power from the power feeding device 10. Rotated to position. And the electric power feeding side apparatus 10 transmits the identifier incremented by 1 to the some power receiving side apparatus 20 via the electric power feeding side antenna L11.
  • the third power receiving side device 20 attached clockwise is “# 1”, and the power receiving side device 20 attached counterclockwise is “# 2,”
  • the identifier “1” is stored in the storage unit 21c of the power receiving side device 20 of “# 1”, and the storage unit of the power receiving side device 20 of “# 2”.
  • the identifier “2” is stored in 21c.
  • the number of the power receiving side devices 20 is “12”, so “N” illustrated in FIG. 7 is “12”.
  • the identifiers given from the power supply side device 10 are stored in the storage units 21c of the plurality of power receiving side devices 20, respectively.
  • the control unit 21a determines whether or not the identifier detected by the ID detection unit 21b matches the identifier stored in the storage unit 21c in the data communication mode. When it is determined that the identifier detected by the ID detection unit 21b matches the identifier stored in the storage unit 21c, the control unit 21a sends an on / off signal corresponding to the data of the sensor 22 to the transmission unit. To 21d.
  • the transmission unit 21d performs load modulation based on the on / off signal output from the control unit 21a.
  • the transmission unit 21d has an FET (Field Effect Transistor), and changes the impedance matching between the power receiving antenna L21 and the subsequent circuit by the switching operation of the FET.
  • FET Field Effect Transistor
  • FIG. 8 is a sequence diagram for explaining an operation example in the identifier assigning mode of the wireless power feeding system.
  • the user has replaced a plurality of power receiving devices 20 attached to the turntable 2b.
  • the user performs an operation of assigning an identifier to the control device C in order to assign an identifier to the plurality of power receiving-side devices 20 that have been replaced.
  • the control device C receives an identifier assigning operation from the user and instructs the power supply side device 10 to operate in the identifier assigning mode.
  • the power supply side device 10 starts the processing of the sequence illustrated in FIG.
  • control part 11a controls the drive device which rotates the tool 2c so that the predetermined part A11 of the turntable 2b comes to the reference position A12 (step S1).
  • control unit 11a outputs the identifier “1” to the ID insertion unit 11d (step S2).
  • control unit 11a controls the oscillation unit 11b to output a sine wave signal having a wireless power transmission carrier frequency (step S3).
  • the signal output from the oscillating unit 11b is amplified by the amplifying unit 11c, and the signal (power) amplified by the amplifying unit 11c is output to the feeding antenna L11 via the ID inserting unit 11d.
  • predetermined electric power is transmitted to the power receiving side device 20 arranged at the power receiving position by the rotation of the turntable 2b in step S1 or step S8.
  • step S2 or step S7 the ID insertion unit 11d inserts the identifier output from the control unit 11a into the power output from the amplification unit 11c (step S4).
  • control unit 11a stops power transmission (step S5).
  • control unit 11a determines whether or not the identifier has been transmitted to all the power receiving devices 20 attached to the turntable 2b (step S6).
  • step S6 When the control unit 11a determines in step S6 that the identifier has been transmitted to all the power receiving devices 20 attached to the turntable 2b (“Yes” in S6), the process of the sequence ends.
  • step S6 When it is determined in step S6 that the identifier is not transmitted to all the power receiving devices 20 attached to the turntable 2b (“No” in S6), the control unit 11a sets “1” to the identifier. Add (step S7). The control unit 11a outputs the identifier added with “1” to the ID insertion unit 11d.
  • control unit 11a When the control unit 11a outputs the identifier added with “1” to the ID insertion unit 11d, the control unit 11a rotates the turntable 2b to the next power receiving position (step S8). And the control part 11a transfers a process to step S3.
  • step S1 or step S8 The operation of the control device 21 of the power receiving side device 20 will be described.
  • the power receiving side device 20 arranged at a position where the power of the power feeding side device 10 can be received executes the following steps S11 to S14.
  • the rectifying unit 21g receives the power transmitted from the power supply side device 10 in step S3 (step S11).
  • the rectification unit 21g rectifies the power received in step S11 (step S12).
  • the rectifying unit 21g supplies the rectified power to each unit of the control device 21.
  • the ID detection unit 21b detects the identifier inserted into the power in step S4 (step S13).
  • control unit 21a stores the identifier detected in step S13 in the storage unit 21c (step S14). And the control part 21a complete
  • FIG. 9 is a sequence diagram illustrating an operation example in the data communication mode of the wireless power feeding system. It is assumed that the machine tool 1 is processing the workpiece A.
  • the control device C instructs the power feeding side device 10 to transmit data of a predetermined power receiving side device 20. At that time, the control device C transmits to the power supply side device 10 an identifier of the power receiving side device 20 to which data is to be transmitted.
  • the power supply side device 10 starts the processing of the sequence shown in FIG.
  • control unit 11a receives from the control device C the identifier of the power receiving device 20 that is desired to transmit data (step S21).
  • the number of identifiers to be received may be one or two or more.
  • control unit 11a controls the oscillating unit 11b to output a sine wave signal having a wireless power transmission carrier frequency (step S22).
  • the signal output from the oscillating unit 11b is amplified by the amplifying unit 11c, and the signal (power) amplified by the amplifying unit 11c is output to the power supply antenna L12 via the data ID inserting unit 11e.
  • predetermined power is transmitted to all the power receiving devices 20 mounted on the turntable 2b.
  • control unit 11a outputs one identifier received in step S21 to the data ID insertion unit 11e.
  • the data ID insertion unit 11e inserts the identifier output from the control unit 11a into the power output from the amplification unit 11c (step S23).
  • the demodulator 11f demodulates the change in the reflected power of the power transmitted in step S22 (step S24).
  • control unit 11a determines whether all the identifiers received in step S21 have been inserted into the transmitted power (step S25).
  • step S21 determines that all the identifiers received in step S21 have not been inserted into the transmitted power ("No" in S25)
  • the process proceeds to step S23.
  • the control part 11a outputs the identifier which has not been inserted in transmission power until now to the data ID insertion part 11e, when performing the process of step S23 via step S25.
  • control unit 11a transmits the data demodulated in step S24 to the control device C (step S26).
  • the demodulated data may be transmitted in step S24.
  • control device 21 of the power receiving side device 20 The operation of the control device 21 of the power receiving side device 20 will be described.
  • Each of the power receiving side devices 20 of “# 1 to #N” executes the processes of the following steps S31 to S35.
  • the rectifying unit 21g receives the electric power transmitted from the power supply side device 10 in step S22 (step S31).
  • the rectification unit 21g rectifies the power received in step S31 (step S32).
  • the rectifying unit 21g supplies the rectified power to each unit of the control device 21.
  • the ID detection unit 21b detects the identifier inserted into the power in step S23 (step S33).
  • control unit 21a determines whether or not the identifier detected in step S33 matches the identifier stored in the storage unit 21c (step S34). That is, the control unit 21a determines whether or not its own device is designated as a device that transmits data of the sensor 22.
  • control unit 21a determines that the identifier detected in step S33 does not match the identifier stored in the storage unit 21c (“No” in S34), the process of the sequence ends.
  • the control unit 21a determines that the identifier detected in step S33 matches the identifier stored in the storage unit 21c (“Yes” in S34), the on / off signal based on the data sensed by the sensor 22 Is output to the transmitter 21d.
  • the transmission unit 21d performs load modulation based on the on / off signal output from the control unit 21a (step S35).
  • the data sensed by the sensor 22 is load-modulated and transmitted to the power supply side device 10.
  • the data transmitted to the power supply side device 10 is demodulated by the demodulation unit 11f in step S24.
  • the turntable 2b is moved to the power receiving position so that each of the plurality of power receiving devices 20 mounted can receive the power of the power feeding device 10 one by one.
  • the ID insertion unit 11d of the power supply side device 10 inserts an identifier corresponding to the power receiving position of the turntable 2b into the power to be transmitted.
  • the ID detection unit 21b of the power receiving device 20 detects an identifier inserted in the received power, and the storage unit 21c stores the detected identifier.
  • the wireless power feeding system can assign an appropriate identifier to each of the plurality of power receiving devices 20 mounted on the turntable 2b. Further, since the wireless power feeding system assigns an appropriate identifier to each of the plurality of power receiving devices 20, it is possible to obtain an appropriate relationship between the data of the sensor 22 and the measurement position of the sensor 22 on the turntable 2b. it can.
  • the data ID insertion unit 11e of the power supply side device 10 inserts an identifier corresponding to the power reception side device 20 to which data is to be transmitted into the power.
  • the transmission unit 21d of the power reception side device 20 transmits data to the power supply side device 10.
  • the power feeding side apparatus 10 can receive data from the power receiving side apparatus 20 which wants to transmit data.
  • the ID insertion unit 11d of the power supply side device 10 inserts the number of identifiers incremented by 1 into the power every time the turntable 2b is rotated by a predetermined angle.
  • the power feeding side apparatus 10 does not need to be provided with the memory
  • the table on which the plurality of power receiving devices 20 are mounted is the turntable 2b, but is not limited thereto.
  • the base on which the plurality of power receiving devices 20 are mounted may have a rectangular shape, and the plurality of power receiving devices 20 may be mounted on a straight line.
  • the platform may be repeatedly operated on a straight line, for example.
  • the wireless power feeding system is applied to the machine tool 1, but is not limited thereto.
  • the wireless power feeding system can be applied to a device that senses a plurality of power receiving devices 20 while moving.
  • step S8 of FIG. 8 the control unit 11a of the power supply side device 10 rotates the turntable 2b.
  • the control device C may rotate the turntable 2b.
  • control unit 11a of the power supply side device 10 has received the identifier to be transmitted from the control device C.
  • the control unit 11a autonomously (for example, according to the program) determines the identifier to be transmitted. It may be selected and transmitted to the power receiving device 20.
  • an identifier may be stored in advance in the storage unit 21c of the power receiving device 20 attached to the turntable 2b.
  • the identifier stored in advance in the storage unit 21c may be overwritten in the identifier assignment mode.
  • the power feeding side device 10 may not include the power feeding side antenna L12. That is, the power feeding side device 10 may transmit power via the power feeding side antenna L11 even in the data communication mode. In this case, the turntable 2b is rotated to the power receiving position so that the power receiving side device 20 that transmits data is disposed at a position where it can receive power.
  • the number of identifiers incremented by 1 is assigned to the adjacent power receiving device 20.
  • identifiers other than the number are assigned to the plurality of power receiving devices 20.
  • FIG. 10 is a diagram illustrating a block configuration example of the control device 11 of the power supply side device 10 according to the second embodiment.
  • the control device 11 of the power supply side device 10 includes a storage unit 31.
  • the storage unit 31 stores a power reception position and an identifier of the turntable 2b in association with each other in advance.
  • FIG. 11 is a diagram illustrating a data configuration example of the storage unit 31 of the power supply side device 10. As illustrated in FIG. 11, the storage unit 31 stores a power receiving position 31 a and an identifier 31 b in advance.
  • the power receiving position 31a is a turntable that is rotated so that a plurality of power receiving side devices 20 can receive the power of the power feeding side device 10 one by one after the predetermined part A11 of the turntable 2b is aligned with the reference position A12. The position of 2b is shown.
  • “P1” at the power receiving position 31a in FIG. 11 is an angle (0 degree) when the turntable 2b is rotated such that the predetermined part A11 shown in FIG. 3 is at the reference position A12.
  • “P2” at the power receiving position 31a in FIG. 11 indicates the angle (30 degrees) of the turntable 2b rotated 30 degrees counterclockwise after the turntable 2b is rotated to the power receiving position “P1”.
  • the power receiving position 31a in FIG. 11 indicates an angle (60 degrees, 90 degrees,... 330 degrees) when the turntable 2b rotates by 30 degrees.
  • the identifier 31b indicates an identifier transmitted to the power receiving side device 20 when the turntable 2b is rotated to the power receiving position 31a.
  • the identifier “xyz” is transmitted to the power receiving side device 20.
  • the identifier “xyz” is given to the power receiving device 20 indicated by the hatching in FIG.
  • an identifier “hij” is transmitted to the power receiving side device 20.
  • the identifier “hij” is assigned to the power receiving side device 20 adjacent to the left side of the power receiving side device 20 indicated by hatching in FIG.
  • an identifier corresponding to the power receiving position 31a 60 degrees, 90 degrees,... 330 degrees
  • a block configuration example of the control device 21 of the power receiving side device 20 is the same as that in FIG.
  • the identifier transmitted from the power supply side device 10 is stored in the storage unit 21c of the control device 21.
  • FIG. 12 is a diagram illustrating a data configuration example of the storage unit 21 c of the power receiving side device 20.
  • the third power receiving side device 20 attached clockwise is “# 1”
  • the power receiving side device 20 attached counterclockwise is “# 2, # 3”.
  • ... " it is assumed that the identifier 31b illustrated in FIG. 11 is stored in the storage unit 31 of the power supply side device 10.
  • the identifier “xyz” is stored in the storage unit 21 c of the power receiving side device 20 of “# 1”.
  • the identifier “hij” is stored in the storage unit 21c of the power receiving side device 20 of “# 2”.
  • FIG. 13 is a sequence diagram illustrating an operation example in the identifier assignment mode of the wireless power feeding system. Similarly to FIG. 8, the power supply side device 10 receives the operation instruction for the identifier assignment mode from the control device C, and starts the processing of the sequence illustrated in FIG. 13.
  • control part 11a controls the drive device which rotates the tool 2c so that the predetermined part A11 of the turntable 2b comes to the reference position A12 (step S41).
  • control unit 11a refers to the storage unit 31 and acquires an identifier corresponding to the power receiving position of the turntable 2b (step S42).
  • control unit 11a controls the oscillating unit 11b to output a sine wave signal having a wireless power transmission carrier frequency (step S43).
  • the signal output from the oscillating unit 11b is amplified by the amplifying unit 11c, and the signal amplified by the amplifying unit 11c is output to the feeding antenna L11 via the ID inserting unit 11d.
  • predetermined electric power is transmitted to the power receiving side apparatus 20 arrange
  • control unit 11a outputs the identifier acquired in step S42 to the ID insertion unit 11d.
  • the ID insertion unit 11d inserts the identifier output from the control unit 11a into the power output from the amplification unit 11c (step S44).
  • control unit 11a stops power transmission (step S45).
  • control unit 11a determines whether or not an identifier has been transmitted to all the power receiving devices 20 attached to the turntable 2b (step S46).
  • step S46 When the control unit 11a determines in step S46 that the identifier has been transmitted to all the power receiving devices 20 attached to the turntable 2b (“Yes” in S46), the process of the sequence ends.
  • step S46 When it is determined in step S46 that the identifier is not transmitted to all the power receiving devices 20 attached to the turntable 2b (“No” in S46), the control unit 11a sets the turntable 2b to the next step. It rotates to the power receiving position (step S47). And the control part 11a transfers a process to step S42.
  • the operation of the wireless power feeding system in the data communication mode is the same as the processing of the sequence shown in FIG. 9, and the description thereof is omitted.
  • the power receiving position of the turntable 2b and the identifiers assigned to the plurality of power receiving devices 20 are stored in the storage unit 31 of the power feeding device 10 in association with each other.
  • the ID insertion unit 11d of the power supply side device 10 refers to the storage unit 31 based on the power reception position of the turntable 2b, acquires an identifier corresponding to the power reception position, and inserts it into the power. Accordingly, the wireless power feeding system can appropriately assign an arbitrary identifier such as a character to each of the plurality of power receiving apparatuses 20 instead of the incremented identifier.
  • the power receiving side device 20 that transmits data is specified by an identifier.
  • the power receiving side device 20 that transmits data is not designated by an identifier, and a plurality of power receiving side devices 20 transmit data to the power feeding side device 10 so as not to interfere with data.
  • FIG. 14 is a diagram illustrating a block configuration example of the control device 11 of the power supply side device 10 according to the third embodiment.
  • the control device 11 includes a control unit 41, a trigger insertion unit 42, and a storage unit 43.
  • the control unit 41 is different from the control unit 11a in FIG. 5 in the operation in the data communication mode.
  • the control unit 41 controls the trigger insertion unit 42 so that a trigger is inserted into the power output from the amplification unit 11c in the data communication mode.
  • control unit 41 refers to a storage unit 43 described later to determine which power receiving side device 20 transmits the data demodulated by the demodulation unit 11f.
  • Other functions of the control unit 41 are the same as the functions described in FIG.
  • the trigger insertion unit 42 inserts a trigger (trigger signal) into the signal output from the amplification unit 11c under the control of the control unit 41.
  • the signal in which the trigger is inserted by the trigger insertion unit 42 is output to the power feeding side antenna L12.
  • the storage unit 43 stores in advance an identifier assigned to each of the plurality of power receiving devices 20 and a time from the trigger.
  • storage part 43 is comprised by memories, such as RAM and ROM, for example.
  • FIG. 15 is a diagram illustrating a data configuration example of the storage unit 43. As shown in FIG. 15, the storage unit 43 stores an identifier 43a and a time 43b from the trigger in advance.
  • the identifier 43a is an identifier assigned to the plurality of power receiving devices 20. Note that, as described in the first embodiment, a plurality of identifiers incremented by one are assigned to the plurality of power receiving devices 20 in the identifier assignment mode.
  • the time 43b from the trigger is a time obtained by multiplying the identifier 43a by a predetermined value “a”.
  • the time 43b from the trigger is calculated by the following equation (1).
  • Trigger time identifier x a (1)
  • the control unit 41 recognizes from which power receiving side device 20 the data demodulated by the demodulation unit 11f is the data transmitted based on the time 43b from the trigger.
  • the control unit 41 recognizes the data demodulated by the demodulation unit 11f as data transmitted from the power receiving side device 20 having the identifier “1”.
  • the control unit 41 recognizes the data demodulated by the demodulation unit 11f as the data transmitted from the power receiving side device 20 having the identifier “2”.
  • the control unit 41 recognizes the data demodulated by the demodulation unit 11f as data transmitted from the power receiving side device 20 having the identifier “N”.
  • FIG. 16 is a diagram illustrating a block configuration example of the control device 21 of the power receiving side device 20.
  • the same components as those in FIG. In FIG. 16, parts different from FIG. 6 will be described.
  • control device 21 includes a control unit 51, an ID / trigger detection unit 52, and a storage unit 53.
  • the control unit 51 calculates the time from the trigger based on the identifier detected by the ID / trigger detection unit 52 in the identifier assignment mode. For example, the control unit 51 calculates the time from the trigger by multiplying the identifier detected by the ID / trigger detection unit 52 by a predetermined value “a”. The control unit 51 stores the calculated time from the trigger in the storage unit 53.
  • the control unit 51 turns on / off according to the data of the sensor 22.
  • the off signal is output to the transmitter 21d.
  • the ID / trigger detection unit 52 detects an identifier inserted in the received power in the identifier assignment mode. Further, the ID / trigger detection unit 52 detects a trigger inserted in the received power in the data communication mode.
  • the storage unit 53 stores the time from the trigger calculated by the control unit 51.
  • the storage unit 53 is configured by a memory such as a RAM or a ROM, for example.
  • FIG. 17 is a diagram illustrating a data configuration example of the storage unit 53.
  • FIG. 17 illustrates a data configuration example of each storage unit 53 of the power receiving side devices 20 of “# 1 to #N”.
  • Each storage unit 53 of “# 1 to #N” stores an identifier 53a and a time 53b from the trigger.
  • the identifier 53a is an identifier detected by the ID / trigger detection unit 52 in the identifier assignment mode. That is, the identifier 53a is an identifier assigned to the power receiving side device 20.
  • the time 53b from the trigger is a time calculated by multiplying the identifier 53a by a predetermined value “a”. For example, the time 53b from the trigger is calculated by the following equation (2).
  • the control unit 51 of the power receiving side device 20 of “# 1 to #N” refers to the time 53b from the trigger of the storage unit 53 shown in FIG.
  • the control unit 51 of the power receiving side device 20 of “# 1” transmits the data of the sensor 22 to the power feeding side device 10 when the time “t1” elapses after the ID / trigger detection unit 52 detects the trigger.
  • the control unit 51 of the power receiving side device 20 of “# 2” transmits the data of the sensor 22 to the power feeding side device 10 when the time “t2” elapses after the trigger is detected by the ID / trigger detection unit 52.
  • the control unit 51 of the power receiving side device 20 of “#N” receives the data of the sensor 22 after the time “tN” has elapsed since the ID / trigger detection unit 52 detects the trigger. 10 to send.
  • FIG. 18 is a timing chart for explaining an operation example in the data communication mode of the wireless power feeding system.
  • a timing chart T1 shown on the upper side of FIG. 18 shows electric power transmitted from the power supply side device 10 to the power reception side devices 20 of “# 1 to #N” via the power supply side antenna L12.
  • Data D1 in the timing chart T2 shown in the lower part of FIG. 18 indicates data transmitted from the power receiving side device 20 of “# 1 to #N” to the power feeding side device 10.
  • Data D2 in the timing chart T2 indicates data received by the power supply side device 10.
  • the horizontal axes of the timing charts T1 and T2 indicate time, and the time on each horizontal axis corresponds.
  • control unit 41 of the control device 11 of the power supply side device 10 controls the trigger insertion unit 42 to insert a trigger into the signal output from the amplification unit 11c.
  • the “trigger” shown in the timing chart T1 indicates the timing at which the trigger insertion unit 42 inserts a trigger into the signal output from the amplification unit 11c.
  • the ID / trigger detection unit 52 of the control device 21 of the power receiving side device 20 detects the trigger inserted in the power transmitted from the power feeding side device 10. Detection of the trigger inserted into the power transmitted from the power supply side device 10 is performed in all the power reception side devices 20 of “# 1 to #N”. Therefore, the trigger detection timing is the same in all the power receiving side devices 20 of “# 1 to #N”. For example, the trigger detection timing of all the power receiving side devices 20 of “# 1 to #N” is the timing of “trigger” shown in the timing chart T2.
  • the control units 51 of the power receiving side devices 20 of “# 1 to #N” output from the sensor 22 when the time 53b from the trigger stored in the storage unit 53 has elapsed since the trigger was detected.
  • An on / off signal corresponding to the data is output to the transmitter 21d.
  • the trigger detection is performed as illustrated in the data D1 of the timing chart T2.
  • the data transmission time of “# 1” is a time until the power receiving side device 20 of “# 2” starts data transmission at the longest.
  • the data transmission time of “# 2” is the time until the power receiving side device 20 of “# 3” starts data transmission at the longest.
  • the data transmission time of “#N” is the time until the power receiving side device 20 of “# 1” starts data transmission at the longest.
  • the time 53b from the trigger of the storage unit 53 is calculated by the equation (2), and is different in each of the power receiving side devices 20 of “# 1 to #N”.
  • the time 53b from the trigger of the storage unit 53 is “t1 ⁇ t2... ⁇ TN” from Expression (2).
  • the timing of the data transmitted from the plurality of power receiving side devices 20 to the power feeding side device 10 is as shown in the data D1 of the timing chart T2, and data interference is avoided.
  • the power feeding side device 10 receives the data of the plurality of power receiving side devices 20 as indicated by data D2.
  • the demodulator 11f of the power supply side device 10 demodulates the received data.
  • the control unit 41 recognizes from which power receiving side device 20 the data demodulated by the demodulating unit 11f is the data transmitted based on the time 43b from the trigger of the storage unit 43. For example, when the data example illustrated in FIG. 15 is stored in the storage unit 43, the control unit 41 converts the data demodulated by the demodulation unit 11f to “# 1” after the time “t1” from the trigger has elapsed. ”Is recognized as data transmitted from the power receiving side device 20. Further, after the time “t2” from the trigger has elapsed, the control unit 41 recognizes the data demodulated by the demodulation unit 11f as the data transmitted from the power receiving side device 20 of “# 2”.
  • the sequence in the identifier assignment mode of the wireless power feeding system is the same as that in the sequence diagram of FIG. However, the plurality of power receiving side devices 20 calculate the time from the trigger using Expression (2) in the process of step S14 in FIG. 8 and store the time in the storage unit 53 in association with the identifier.
  • FIG. 19 is a sequence diagram illustrating an operation example in the data communication mode of the wireless power feeding system. Similarly to FIG. 9, the power supply side device 10 receives the data transmission instruction from the control device C and starts the processing of the sequence shown in FIG. 19.
  • control unit 41 controls the oscillation unit 11b to output a sine wave signal having a wireless power transmission carrier frequency (step S51).
  • predetermined power is transmitted from the power supply side device 10 to the power receiving side devices 20 of “# 1 to #N”.
  • control unit 41 controls the trigger insertion unit 42 to insert a trigger into the signal output from the amplification unit 11c (step S52).
  • the power with the trigger inserted is transmitted to the power receiving side devices 20 of “# 1 to #N”.
  • control unit 41 starts counting time in response to the trigger insertion control in step S52 (step S53).
  • control unit 41 refers to the storage unit 43 and acquires the time from the trigger of the identifier “1” (step S54).
  • step S53 when the time when the counting is started in step S53 becomes the time from the trigger of the identifier acquired in step S54 or step S57, the control unit 41 converts the data demodulated by the demodulation unit 11f into the step S54 or The identifier obtained in step S57 is recognized as data of the power receiving device 20 (step S55).
  • control unit 41 determines whether or not the process of step S55 has been performed for all identifiers (step S56).
  • control unit 41 determines that the process of step S55 has not been performed for all identifiers (“No” in S56), it adds “1” to the identifier and corresponds to the identifier with “1” added.
  • the time from the trigger is acquired with reference to the storage unit 43 (step S57). And the control part 41 transfers a process to step S55.
  • step S55 When it is determined that the process of step S55 has been performed on all identifiers (“Yes” in S56), the control unit 41 resets the time count (step S58).
  • control unit 41 transmits the data certified in step S55 to the control device C (step S59). And the control part 41 complete
  • Each power receiving side device 20 of “# 1 to #N” executes the processing of the following steps S61 to S66.
  • the rectifying unit 21g receives the electric power transmitted from the power supply side device 10 in step S51 (step S61).
  • the rectification unit 21g rectifies the power received in step S61 (step S62).
  • the rectification unit 21 g supplies the rectified power to each unit of the control device 21 and the sensor 22.
  • the ID / trigger detection unit 52 detects a trigger inserted in the power transmitted from the power supply side device 10 (step S63).
  • control unit 51 starts counting time in response to the detection of the trigger in step S63 (step S64).
  • control unit 51 controls (load modulates) the transmission unit 21d based on the data of the sensor 22 ( Step S65).
  • control unit 51 resets the time count (step S66). And the control part 51 complete
  • the trigger insertion unit 42 of the power supply side device 10 inserts a trigger into the power transmitted to the plurality of power reception side devices 20.
  • the ID / trigger detectors 52 of the plurality of power receiving devices 20 detect a trigger from the received trigger.
  • the transmission unit 21d transmits data to the power supply apparatus 10 when a time corresponding to the identifier (time from the trigger) has elapsed since the trigger was detected. Thereby, the wireless power feeding system can avoid interference in data transmission from the plurality of power receiving devices 20 to the power feeding device 10.
  • the time 43b from the trigger of the storage unit 43 and the time 53b from the trigger of the storage unit 53 are set to be the same, but the storage unit is considered in consideration of the data transmission time (delay time). You may make it add predetermined time to the time 43b from 43 triggers.
  • identifiers are assigned to all the power receiving devices 20 in the identifier assignment mode. In the fourth embodiment, identifiers are assigned to some power receiving devices 20.
  • the power supply side device 10 When the power supply side device 10 receives data from the power receiving side device 20 in the data communication mode, the power supply side device 10 transmits the received data to the control device C.
  • the control device C determines the failure of the power receiving side device 20 based on the data transmitted from the power feeding side device 10. For example, the control device C determines the failure of the power receiving side device 20 depending on whether or not the value of the received data is within a possible range.
  • the control device C can determine which power receiving device 20 is the received data.
  • data is transmitted to the power receiving device 20 using the time from the trigger calculated using the identifier. Therefore, the control device C can determine which power receiving device 20 is the received data. That is, the control device C can determine from the received data whether the power receiving side device 20 has failed and which identifier has failed.
  • the control device C displays on the display device which power receiving side device 20 has failed. For example, the control device C displays the identifier of the failed power receiving device 20 on the display device.
  • the user replaces the power receiving side device 20 with the identifier displayed on the display device. Then, the user performs an operation for assigning an identifier to the control device C.
  • the wireless power feeding system gives an identifier to the replaced power receiving device 20.
  • FIG. 20 is a sequence diagram illustrating an operation example in the identifier assigning mode of the wireless power feeding system according to the fourth embodiment.
  • the power supply side device 10 receives the identifier assignment mode operation instruction from the control device C and starts the processing of the sequence illustrated in FIG. 20.
  • control unit 11a receives the identifier of the power receiving side device 20 determined to be abnormal from the control device C, and acquires one identifier from the received identifiers (step S71). There may be one identifier received from the control device C.
  • control unit 11a rotates the turntable 2b to the power receiving position so that the power receiving side device 20 corresponding to the identifier acquired in step S71 can receive the power of the power feeding side device 10 (step S72).
  • control part 11a can rotate the turntable 2b to a suitable power receiving position with the value of the acquired identifier.
  • the control unit 11a acquires the identifier “3” in step S71.
  • control unit 11a controls the oscillation unit 11b to output a sine wave signal having a wireless power transmission carrier frequency (step S73).
  • the signal output from the oscillating unit 11b is amplified by the amplifying unit 11c, and the signal amplified by the amplifying unit 11c is output to the feeding antenna L11 via the ID inserting unit 11d.
  • predetermined power is transmitted to the power receiving side device 20 arranged at the power receiving position by the rotation of the turntable 2b in step S72 or step S78.
  • control unit 11a outputs the identifier acquired in step S71 or step S77 to the ID insertion unit 11d.
  • the ID insertion unit 11d inserts the identifier output from the control unit 11a into the power output from the amplification unit 11c (step S74).
  • control unit 11a stops power transmission (step S75).
  • control unit 11a determines whether or not all the identifiers received in step S71 have been transmitted to the power receiving side device 20 (step S76).
  • step S71 When it is determined that all the identifiers received in step S71 have not been transmitted to the power receiving device 20 (“No” in S76), the control unit 11a acquires another identifier that has not been acquired so far. (Step S77). And the control part 11a rotates the turntable 2b to the power receiving position corresponding to the identifier acquired in step S77 (step S78). And the control part 11a transfers a process to step S73.
  • control unit 11a determines that all the identifiers received in step S71 have been transmitted to the power receiving apparatus 20 (“Yes” in S76), the control unit 11a ends the processing of the sequence.
  • the turntable 2b is moved to the power receiving position of a part of the power receiving side devices 20, and the ID insertion unit 11d of the power feeding side device 10 inserts the identifier of the part of the power receiving side devices 20 into the power. .
  • the wireless power feeding system can give an identifier to some of the power receiving side devices 20.
  • the wireless power feeding system can give an identifier to the power receiving device 20 that has been replaced due to an abnormality.
  • abnormality determination of the power receiving side device 20 may be performed by the control unit 11a of the power feeding side device 10.
  • the present invention is not limited by the way of classification and names of the constituent elements.
  • the configuration of the wireless power feeding system can be classified into more components depending on the processing content. Moreover, it can also classify
  • each processing unit in the above-described sequence diagram is divided according to main processing contents in order to facilitate understanding of the processing of the wireless power feeding system.
  • the present invention is not limited by the way of dividing the processing unit or the name.
  • the processing of the wireless power feeding system can be divided into more processing units according to the processing content. Moreover, it can also divide

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  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente invention applique un identifiant approprié à chaque dispositif d'une pluralité de dispositifs de côté de réception d'électricité. Ce système d'alimentation électrique sans fil comporte un dispositif de côté d'alimentation électrique qui transmet sans fil de l'énergie électrique par des antennes de côté d'alimentation électrique et une pluralité de dispositifs de côté de réception d'électricité qui utilisent comme source d'électricité l'énergie électrique reçue par une antenne de côté de réception d'électricité. Le dispositif de côté d'alimentation électrique comporte une unité d'insertion d'identifiant qui insère l'identifiant correspondant à la position de réception d'électricité d'une table mobile dans l'énergie électrique. La table mobile comporte la pluralité de dispositifs de côté de réception d'électricité montés dessus, et est déplacée dans la position de réception d'électricité pour que la pluralité de dispositifs de côté de réception d'électricité puisse recevoir individuellement l'énergie électrique. Chacun des dispositifs de côté de réception d'énergie comporte une unité de détection d'identifiant qui détecte l'identifiant à partir de l'énergie électrique reçue et une unité de stockage qui stocke l'identifiant.
PCT/JP2016/057634 2016-03-10 2016-03-10 Système d'alimentation électrique sans fil, dispositif de côté d'alimentation électrique, et dispositif de côté de réception d'électricité WO2017154174A1 (fr)

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JP2016563862A JP6205509B1 (ja) 2016-03-10 2016-03-10 無線給電システム、給電側装置、および受電側装置
PCT/JP2016/057634 WO2017154174A1 (fr) 2016-03-10 2016-03-10 Système d'alimentation électrique sans fil, dispositif de côté d'alimentation électrique, et dispositif de côté de réception d'électricité

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07249531A (ja) * 1994-03-11 1995-09-26 Yaskawa Electric Corp Ｆａコネクタおよびそれを用いたワークパレット
JP2014505455A (ja) * 2010-12-20 2014-02-27 クアルコム，インコーポレイテッド ワイヤレス給電ピアツーピア通信
JP2015076955A (ja) * 2013-10-08 2015-04-20 独立行政法人産業技術総合研究所 無線センサ端末

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07249531A (ja) * 1994-03-11 1995-09-26 Yaskawa Electric Corp Ｆａコネクタおよびそれを用いたワークパレット
JP2014505455A (ja) * 2010-12-20 2014-02-27 クアルコム，インコーポレイテッド ワイヤレス給電ピアツーピア通信
JP2015076955A (ja) * 2013-10-08 2015-04-20 独立行政法人産業技術総合研究所 無線センサ端末

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