JP2006087214A - Power supply system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power supply system that supplies power to an electronic toy and can improve convenience. <P>SOLUTION: The power supply system is characterized in that a power transmission apparatus 1 and the electronic toys 2, 3 are provided therein, and can supply power to the electronic toys 2, 3 from the power transmission apparatus 1 in an electrically noncontact manner. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a power supply system that supplies power to an electronic toy.

Conventionally, a dry battery has been used as a power source for an electronic toy. When the capacity of the dry battery is lost, it has to be replaced with a new one. In addition, when a rechargeable battery is used, it is necessary to take out only the rechargeable battery from the electronic toy and charge it every time it is charged.
JP-A-9-128110 Japanese Patent Laid-Open No. 10-233235

  For this reason, if the capacity of the dry batteries (including rechargeable batteries) used as the power source of the electronic toy is lost, it is necessary to replace the dry battery even while using the electronic toy. It was inconvenient for me.

  On the other hand, a power supply system capable of supplying power from a power transmission device to a personal computer, information device, mobile phone, or the like in an electrically non-contact manner has been developed (see, for example, Patent Document 1 and Patent Document 2). However, such a power supply system that can supply power in a non-contact manner has not been developed for electronic toys.

  In view of the above problems, an object of the present invention is to provide a power supply system that supplies power to an electronic toy and that can improve convenience.

  In order to achieve the above object, a power supply system according to the present invention includes a power transmission device and an electronic toy that is a power reception device, and supplies power from the power transmission device to the electronic toy in an electrically non-contact manner. Is to be possible.

  According to such a configuration, the user is freed from troublesomeness such as replacement of the dry battery, so that convenience can be improved.

  The electronic toy may have power storage means for storing power supplied from the power transmission device.

  According to such a configuration, as long as power is stored in the power storage means, the electronic toy can be driven even when the electronic toy is not in proximity to the power transmission device.

  In addition, a plurality of the electronic toys may be provided, the power transmission device may include a plurality of power transmission units, and the plurality of electronic toys may simultaneously receive power from the power transmission device.

  According to such a configuration, since the power transmission device can supply power to a plurality of electronic toys at the same time, the convenience can be further improved.

  In addition, the electronic toy has power storage means for storing power supplied from the power transmission device, and includes a plurality of the electronic toys, and each of the electronic toys receives power stored in the power storage means as another electronic You may make it have a power transmission part which can be supplied to a toy, and a power receiving part which can receive electric power from another electronic toy.

  According to such a configuration, even if a plurality of electronic toys are separated from the power transmission device, it is possible to supply power between the electronic toys, so that it is possible to further improve convenience.

  Further, in any one of the configurations described above, the electronic toy has an information output unit that outputs information on the amount of power to be supplied from the power transmission device to the electronic toy, and the power transmission device includes the power transmission unit, An information input unit that inputs information, and a control unit that controls the power transmission unit based on the information input to the information input unit, wherein the power transmission device includes a power transmission unit and the power transmission unit May have a controller that controls the amount of power supplied to the electronic toy.

  According to such a configuration, it is possible to control the amount of power supplied from the power transmission device to the electronic toy.

  In any one of the configurations described above, the power transmission device may be configured by a plurality of sheet-shaped units that can be connected to each other.

  According to such a configuration, the power transmission device can be formed into an arbitrary shape.

  Further, in any one of the above configurations, the electronic toy has power transmission means capable of supplying the power stored in the power storage means to the power transmission device in an electrically non-contact manner, The power transmission device may include a power receiving unit that receives power supplied from the power transmitting unit in an electrically non-contact manner, and a power storage unit that stores the power received by the power receiving unit.

  According to such a configuration, when the power stored in the storage battery of the electronic toy after use of the electronic toy is returned to the power transmission device side, the power transmission device can store the power returned to the power transmission device side. The electric power returned to the power transmission device side can be used effectively at the next use of the electronic toy.

  In any of the above-described configurations, the power transmission device may have an interface for connecting to an electronic device that can be connected to the Internet.

  According to such a configuration, it becomes possible to connect a power transmission device and an electronic device (for example, a personal computer) that can be connected to the Internet, and the power transmission device has another power supply system in a geographically distant place. Data can be sent to and received from power transmission equipment. Thereby, the range of play can be expanded.

  ADVANTAGE OF THE INVENTION According to this invention, it is an electric power supply system which supplies electric power to an electronic toy, Comprising: The electric power supply system which can aim at the improvement of convenience is realizable.

  Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment of the present invention will be described. An appearance of the power supply system according to the first embodiment of the present invention is shown in FIG. The power supply system according to the first embodiment of the present invention includes a power transmission device 1 and electronic toys 2 and 3 that are power reception devices.

  The power transmission device 1 includes an AC plug 1a and a cord 1b. When the AC plug 1a is inserted into a commercial power outlet provided on a wall surface or the like, a commercial AC voltage (AC 100V) is supplied to the power transmission device 1 through the cord 1b. The The power transmission device 1 supplies power to the electronic toys 2 and 3 in an electrically non-contact manner using electromagnetic induction. Moreover, the power transmission apparatus 1 is a sheet-like shape and has flexibility.

  Next, the electrical configuration of the power transmission device 1 is shown in FIG. A commercial AC voltage (AC 100 V) is input to the rectifying and smoothing circuit 4 through the AC plug 1a and the cord 1b. The rectifying / smoothing circuit 4 rectifies and smoothes a commercial AC voltage (AC 100 V) to obtain a DC voltage and outputs the DC voltage. The output terminal of the rectifying and smoothing circuit 4 is connected with n (n is a natural number of 2 or more) power transmission units A1 to An. Since the power transmission units A1 to An have the same configuration, the configuration of the power transmission unit A1 will be described here. The power transmission unit A <b> 1 includes a switch 5, a switching circuit 6, a primary side coil 7, and a proximity sensor 8. The switch 5 is provided between the rectifying / smoothing circuit 4 and the switching circuit 6 and is turned on / off according to the output of the proximity sensor 8. The switch 5 is turned on when the proximity sensor 8 detects the approach of the electronic toy, and the switch 5 is turned off when the proximity sensor 8 does not detect the approach of the electronic toy. The switching circuit 6 converts the DC voltage supplied from the rectifying and smoothing circuit 4 into a pulse voltage by switching, and outputs the pulse voltage to the primary coil 7. The power transmission units A <b> 1 to An are arranged in a grid pattern on the sheet-shaped portion of the power transmission device 1.

  Next, the electrical configuration of the electronic toys 2 and 3 is shown in FIG. Each of the electronic toys 2 and 3 includes a secondary coil 9, a rectifying / smoothing circuit 10, and a motor drive circuit 11. When the secondary coil 9 and the primary coil to which the pulse voltage is supplied are close to each other, an induced voltage is induced in the secondary coil 9 by electromagnetic induction. The rectifying / smoothing circuit 10 rectifies and smoothes the induced voltage induced in the secondary side coil 9 to obtain a DC voltage, and outputs the DC voltage to the motor drive circuit 11. The motor drive circuit 11 drives a motor (not shown) using the DC voltage output from the rectifying and smoothing circuit 10 as a drive voltage. The electronic toy travels by driving the motor.

  The power supply system according to the first embodiment of the present invention can supply electric power to the electronic toy in an electrically non-contact manner, and the user is free from troublesomeness such as replacement of a dry battery. , The convenience can be improved. Further, in the power supply system according to the first embodiment of the present invention, the electronic toys 2 and 3 that move around on the power transmission device 1 are always supplied with power from the power transmission device 1, so that the electronic toy is supplied for power supply. There is no need to interrupt the use of toys 2 and 3. In the power supply system according to the first embodiment of the present invention, the power transmission device 1 can supply power to a plurality (n or less) of electronic toys at the same time. In this respect as well, the convenience can be improved. it can.

  Next, a second embodiment of the present invention will be described. The power supply system according to the second embodiment of the present invention is configured by replacing the electronic toys 2 and 3 included in the power supply system according to the first embodiment of the present invention with electronic toys 12 and 13. Since the external appearance of the power supply system according to the second embodiment of the present invention is the same as the external appearance of the power supply system according to the first embodiment of the present invention, description thereof is omitted.

  The electrical configuration of the electronic toys 12 and 13 is shown in FIG. 4 that are the same as those in FIG. 3 have the same reference numerals. Each of the electronic toys 12 and 13 includes a secondary coil 9, a rectifying and smoothing circuit 10, a motor drive circuit 11, a charge / discharge control circuit 14, a storage battery 15, and a voltage detection circuit 16.

  When the secondary coil 9 and the primary coil to which the pulse voltage is supplied are close to each other, an induced voltage is induced in the secondary coil 9 by electromagnetic induction. The rectifying / smoothing circuit 10 rectifies and smoothes the induced voltage induced in the secondary coil 9 to obtain a DC voltage, and outputs the DC voltage to the charge / discharge control circuit 14.

  When the DC voltage is supplied from the rectifying / smoothing circuit 10, the charge / discharge control circuit 14 outputs the DC voltage to the motor drive circuit 11 and steps down the DC voltage before supplying the storage battery 15 to the storage battery 15. Charge. The charge / discharge control circuit 14 monitors the voltage value of the storage battery 15 detected by the voltage detection circuit 16, and determines that the storage battery 15 is fully charged when the voltage value of the storage battery 15 reaches a predetermined value. The voltage supply to the storage battery 15 is stopped. Thereby, the overcharge of the storage battery 15 can be prevented.

  On the other hand, when the DC voltage is not supplied from the rectifying and smoothing circuit 10, the charge / discharge control circuit 14 discharges the storage battery 15, boosts the discharge voltage of the storage battery 15, and outputs it to the motor drive circuit 11.

  The motor drive circuit 11 drives a motor (not shown) using the DC voltage output from the charge / discharge control circuit 14 as a drive voltage. And when the said motor drives, the electronic toy which is a toy of a bicycle drive | works.

  The power supply system according to the second embodiment of the present invention has the same effects as the power supply system according to the first embodiment of the present invention, and the electronic toys 12 and 13 are configured to include the storage battery 15. If the electronic toys 12 and 13 are not close to the power transmission device 1, the electronic toys 12 and 13 can be driven.

  As described above, the electronic toys 12 and 13 may be automobile toys, may be submarine toys as shown in FIG. 5, or may be rotary airplane toys as shown in FIG. Also good.

  In FIG. 5, the water tank 17 is placed on the power transmission device 1, and the electronic toys 12 and 13 are in the water stretched on the water tank 17. When the remaining capacity of the storage battery mounted on the electronic toy is sufficient, the battery moves around in the water like the electronic toy 12. On the other hand, when the remaining capacity of the storage battery mounted on the electronic toy is not sufficient, the driving of the electronic toy stops, so that the electric power is supplied from the power transmission device 1 by sinking to the bottom of the water tank 17 like the electronic toy 13 and sinking. Start charging the battery. When the charging is completed, the electronic toy that has been sunk in the bottom of the water tank 17 moves around in the water again.

  In FIG. 6, when the remaining capacity of the storage battery mounted on the electronic toy is sufficient, the battery rotates while maintaining a balance like the electronic toys 12 and 13. On the other hand, when the remaining capacity of the storage battery mounted on the electronic toy is not sufficient, the driving of the electronic toy is stopped, so that the storage battery is lowered and lowered to receive power supply from the power transmission device 1 and start charging the storage battery. When the charging is completed, the electronic toy that has been lowered rises again and rotates while maintaining balance.

  Next, a third embodiment of the present invention will be described. The power supply system according to the third embodiment of the present invention has a configuration in which the electronic toys 12 and 13 included in the power supply system according to the second embodiment of the present invention are replaced with electronic toys 17 and 18. Since the external appearance of the power supply system according to the third embodiment of the present invention is the same as the external appearance of the power supply system according to the first embodiment of the present invention, description thereof is omitted.

  The electrical configuration of the electronic toys 17 and 18 is shown in FIG. In FIG. 7, the same parts as those in FIG. 4 are denoted by the same reference numerals. The electronic toys 17 and 18 are respectively a secondary coil 9, a rectifying / smoothing circuit 10, a motor drive circuit 11, a charge / discharge control circuit 14 ', a storage battery 15, a voltage detection circuit 16, a switching circuit 18, A rectifying / smoothing circuit 19, a switch 20, a coil 21, a control circuit 22, and a transmission / reception unit 23 are provided.

  When the secondary coil 9 and the primary coil to which the pulse voltage is supplied are close to each other, an induced voltage is induced in the secondary coil 9 by electromagnetic induction. The rectifying / smoothing circuit 10 rectifies and smoothes the induced voltage induced in the secondary coil 9 to obtain a DC voltage, and outputs the DC voltage to the charge / discharge control circuit 14 ′.

  When the DC voltage is supplied from the rectifying / smoothing circuit 10, the charge / discharge control circuit 14 ′ outputs the DC voltage to the motor drive circuit 11, and lowers the DC voltage before supplying the storage battery 15 to the storage battery 15. To charge. Further, the control circuit 22 monitors the voltage value of the storage battery 15 detected by the voltage detection circuit 16, and determines that the storage battery 15 is fully charged when the voltage value of the storage battery 15 reaches a predetermined value. The charge / discharge control circuit 14 'is controlled so as to stop the voltage supply to. Thereby, the overcharge of the storage battery 15 can be prevented.

  On the other hand, when the DC voltage is not supplied from the rectifying and smoothing circuit 10 and the communication of the transmission / reception unit 23 is not established, the charge / discharge control circuit 14 ′ discharges the storage battery 15 and boosts the discharge voltage of the storage battery 15. And output to the motor drive circuit 11.

  The motor drive circuit 11 drives a motor (not shown) using the DC voltage output from the charge / discharge control circuit 14 'as a drive voltage. And when the said motor drives, the electronic toy which is a toy of a motor vehicle drive | works.

  When the electronic toy 17 and the electronic toy 18 are put together so that the coils 21 of the electronic toy 17 and the electronic toy 18 are close to each other, communication of the transmission / reception unit 23 is established. When the DC voltage is not supplied from the rectifying and smoothing circuit 10 and the communication of the transmission / reception unit 23 is established, power is supplied between the electronic toys. The operation at this time will be described with reference to the block diagram of FIG. 7 and the flowchart of FIG.

  The control circuit 22 causes the transmission / reception unit 23 to transmit the voltage value data of the storage battery 15 detected by the voltage detection circuit 16, and causes the transmission / reception unit 23 to receive the voltage value data of the storage battery 15 included in another electronic toy. Then, the control circuit 22 determines whether it is the power transmission side or the power reception side by comparing the voltage value of its own storage battery 15 with the voltage value of the storage battery 15 included in another electronic toy (step S10). The transmission / reception unit 23 may be any device that can perform wireless communication. For example, an infrared communication method or a radio wave method may be employed.

  When the control circuit 22 determines that it is on the power transmission side, the control circuit 22 connects the switching circuit 18 and the coil 21 by the switch 20 and controls the charge / discharge circuit 14 ′ so that the storage battery 15 is discharged. As a result, a DC voltage obtained by boosting the discharge voltage of the storage battery 15 is supplied from the charge / discharge circuit 14 'to the switching circuit 18, and the switching circuit 18 converts the DC voltage into a pulse voltage by switching, and the pulse voltage is converted into a coil. To 21. That is, power transmission is started (step S20).

  On the other hand, if the control circuit 22 determines that it is on the power receiving side, the control circuit 22 connects the rectifying / smoothing circuit 19 and the coil 21 by the switch 20 and controls the charge / discharge circuit 14 ′ so that the storage battery 15 is charged. Thereby, the rectifying / smoothing circuit 19 rectifies and smoothes the induced voltage induced in the coil 21 to obtain a DC voltage and outputs the DC voltage to the charging / discharging circuit 14 ′. The DC voltage output from the battery is stepped down and then supplied to the storage battery 15 to charge the storage battery 15. That is, power reception is started (step S20).

  The control circuit 22 switches to the charge / discharge control circuit 14 ′ when the voltage value of the storage battery 15 detected by the voltage detection circuit 16 reaches a predetermined value (a different value is set for power transmission and power reception). The power supply to the circuit 18 or the power supply to the storage battery 15 is stopped, and the power transmission or power reception ends (step S30).

  The power supply system according to the third embodiment of the present invention has the same effect as the power supply system according to the second embodiment of the present invention, and even if the electronic toys 17 and 18 are separated from the power transmission device 1, Since power can be supplied between toys, the convenience can be further improved.

  Next, a fourth embodiment of the present invention will be described. The power supply system according to the fourth embodiment of the present invention includes a power transmission device 24 and electronic toys 25 and 26 that are power reception devices. Since the external appearance of the power supply system according to the fourth embodiment of the present invention is the same as the external appearance of the power supply system according to the first embodiment of the present invention, description thereof is omitted.

  Next, the electrical configuration of the power transmission device 24 is shown in FIG. In FIG. 9, the same parts as those in FIG. A commercial AC voltage (AC 100 V) is input to the rectifying and smoothing circuit 4 through the AC plug 1a and the cord 1b. The rectifying / smoothing circuit 4 rectifies and smoothes a commercial AC voltage (AC 100 V) to obtain a DC voltage and outputs the DC voltage. The output terminal of the rectifying / smoothing circuit 4 is connected with n (n is a natural number of 2 or more) power transmission units A1 'to An'. Since the power transmission units A1 'to An' have the same configuration, the configuration of the power transmission unit A1 'will be described here. The power transmission unit A1 'includes a switch 5, a switching circuit 6', a primary coil 7, a proximity sensor 8, a control circuit 27, and a transmission / reception unit 28. The control circuit 27 controls the switching circuit 6 ′ and the transmission / reception unit 28. The switch 5 is provided between the rectifying / smoothing circuit 4 and the switching circuit 6 ′ and is turned on / off according to the output of the proximity sensor 8. The switch 5 is turned on when the proximity sensor 8 detects the approach of the electronic toy, and the switch 5 is turned off when the proximity sensor 8 does not detect the approach of the electronic toy. The switching circuit 6 ′ converts the DC voltage supplied from the rectifying and smoothing circuit 4 into a pulse voltage by switching in accordance with a power transmission command from the control circuit 27, and outputs the pulse voltage to the primary coil 7. The power transmission units A <b> 1 to An are arranged in a grid pattern on the sheet-shaped portion of the power transmission device 1.

  Next, the electrical configuration of the electronic toys 25 and 26 is shown in FIG. The electronic toys 25 and 26 are respectively a secondary coil 9, a rectifying / smoothing circuit 10, a motor driving circuit 11, a charge / discharge control circuit 14 '', a storage battery 15, a voltage detection circuit 16, and a control circuit 29. The transmission / reception unit 30 is provided.

  The control circuit 29 monitors the voltage value of the storage battery 15 detected by the voltage detection circuit 16 and controls the charge / discharge control circuit 14 ″ and the transmission / reception unit 30.

  When the secondary coil 9 and the primary coil to which the pulse voltage is supplied are close to each other, an induced voltage is induced in the secondary coil 9 by electromagnetic induction. The rectifying / smoothing circuit 10 rectifies and smoothes the induced voltage induced in the secondary coil 9 to obtain a DC voltage, and outputs the DC voltage to the charge / discharge control circuit 14 ″.

  When the DC voltage is supplied from the rectifying and smoothing circuit 10 and there is a power reception command from the control circuit 29, the charge / discharge control circuit 14 '' outputs the DC voltage to the motor drive circuit 11 and steps down the DC voltage. After that, the battery 15 is supplied to the storage battery 15 and charged. On the other hand, when the DC voltage is not supplied from the rectifying and smoothing circuit 10, the charge / discharge control circuit 14 ″ discharges the storage battery 15, boosts the discharge voltage of the storage battery 15, and outputs it to the motor drive circuit 11.

  The motor drive circuit 11 drives a motor (not shown) using the DC voltage output from the charge / discharge control circuit 14 ″ as a drive voltage. And when the said motor drives, the electronic toy which is a toy of a motor vehicle drive | works.

  An example of the operation flow of the power supply system according to the fourth embodiment of the present invention having the above-described configuration is shown in FIG. First, the transmission / reception unit 28 of the power transmission device 24 and the transmission / reception unit 30 of the electronic toy 25 or 26 establish communication (step S40). The transmission / reception units 24 and 30 may be any devices that can perform wireless communication, and for example, an infrared communication method or a radio wave method may be employed.

  Thereafter, the control circuit 29 of the electronic toy 25 or 26 determines the amount of power to be supplied from the power transmission device to the electronic toy based on the voltage of the storage battery 15 detected by the voltage detection circuit 16, and the data of the amount of power. Is transmitted to the transmitting / receiving unit 30 (step S50). The power amount data transmitted from the transmission / reception unit 30 is received by the transmission / reception unit 28 of the power transmission device 24. The control circuit 27 determines whether or not to allow power supply to the electronic toy 25 or 26 based on the power amount data received by the transmission / reception unit 28. If not permitted, the control circuit 27 does not transmit a permission signal to the transmission / reception unit 28 (NO in step S60), and the flow ends. On the other hand, in the case of permission, the control circuit 27 transmits a permission signal to the transmission / reception unit 28 (YES in step S60), the power transmission device 24 starts power transmission, and the permission signal received by the transmission / reception unit 30 in the electronic toy 25 or 26. In response to this, the control circuit 29 starts to receive power (step S70). And if the power transmission apparatus 24 transmits only the said electric energy, power transmission will be complete | finished, and in connection with this, the electronic toy 25 or 26 will complete | finish power reception (step S80), and will complete | finish a flow.

  Subsequently, another example of the operation flow of the power supply system according to the fourth embodiment of the present invention having the above-described configuration is shown in FIG. First, the transmission / reception unit 28 of the power transmission device 24 and the transmission / reception unit 30 of the electronic toy 25 or 26 establish communication (step S90). The transmission / reception units 24 and 30 may be any devices that can perform wireless communication, and for example, an infrared communication method or a radio wave method may be employed.

  Thereafter, the control circuit 27 of the power transmission device 24 determines the amount of power supplied to the power transmission partner (specific electronic toy) and the power transmission partner, and transmits the data to the transmission / reception unit 28 (step S100). The data transmitted from the transmission / reception unit 28 is received by the transmission / reception unit 30 of the electronic toy 25 or 26. The control circuit 29 determines whether or not to allow power supply from the power transmission device 24 based on the data received by the transmission / reception unit 30. If not permitted, the control circuit 29 does not transmit the permission signal to the transmission / reception unit 30 (NO in step S110), and the flow ends. On the other hand, in the case of permission, the control circuit 29 causes the transmission / reception unit 30 to transmit a permission signal (YES in step S110), the electronic toy 25 or 26 is in a power receivable state, and the power transmission device 24 receives the permission signal received by the transmission / reception unit 28. In response to this, the control circuit 27 starts power transmission (step S120). And if the power transmission apparatus 24 transmits only the said electric energy, power transmission will be complete | finished, and in connection with this, the electronic toy 25 or 26 will complete | finish power reception (step S130), and will complete | finish a flow.

  The power supply system according to the fourth embodiment of the present invention has the same effect as the power supply system according to the second embodiment of the present invention, and can control the amount of power supplied from the power transmission device to the electronic toy. . 11 and 12, data such as power supply time may be transmitted / received between the transmission / reception unit 28 and the transmission / reception unit 30 instead of the power amount data.

  Next, a fifth embodiment of the present invention will be described. The power supply system according to the fifth embodiment of the present invention has a configuration in which the power transmission device 1 included in the power supply system according to the first embodiment of the present invention is replaced with a power transmission device 31.

  As illustrated in FIG. 13, the power transmission device 31 includes a plurality of sheet-like units B1 to B10 that can be connected to each other. The electrical configuration of the sheet-like unit B1 is shown in FIG. In FIG. 14, the same parts as those in FIG. 2 are denoted by the same reference numerals, and detailed description thereof is omitted. The sheet-like unit B1 has a configuration in which a terminal T1 is newly provided in the power transmission device 1 illustrated in FIG. The terminal T1 is connected to the output terminal of the rectifying / smoothing circuit 4. FIG. 15 shows an electrical configuration of the sheet-like units B2 to B10. The sheet-like units B2 to B10 have a plurality of power transmission units (the same configuration as the power transmission unit A1 shown in FIG. 14), and the terminals T2 and T3 are connected to the input ends of the power transmission units. The terminal T2 is a terminal connectable with the terminal T1 of the sheet-like unit B1 and the terminals T2 and T3 of other units, and the terminal T3 is the terminal T1 of the sheet-like unit B1 and the terminals T2 and T3 of other units. Can be connected to the terminal.

  The power supply system according to the fifth embodiment of the present invention achieves the same effect as the power supply system according to the first embodiment of the present invention, and can make the power transmission device have an arbitrary shape. For example, the racetrack can be simulated by changing the shape of the sheet-like units B1 to B10 shown in FIG. 13 to make the power transmission device have an annular shape as shown in FIG. In this case, the layout of the race course can be changed. Moreover, since the electronic toys 2 and 3 which are toys of a motor vehicle are not equipped with a dry battery and are lightweight, the possibility of breakage is reduced.

  Next, a sixth embodiment of the present invention will be described. The power supply system according to the sixth embodiment of the present invention includes a power transmission device 32 and electronic toys 33 and 34 that are power reception devices. Since the external appearance of the power supply system according to the sixth embodiment of the present invention is the same as the external appearance of the power supply system according to the first embodiment of the present invention, description thereof will be omitted.

  An electrical configuration of the power transmission device 32 is shown in FIG. In FIG. 17, the same parts as those in FIG. The power transmission device 32 includes an AC plug 1a, a cord 1b, a rectifying / smoothing circuit 4, n (n is a natural number of 2 or more) power transmission units A1 ″ to An ″, a charge / discharge control circuit 37, and a storage battery. 38 and an operation button 39. The power transmission units A <b> 1 ″ to An ″ are arranged in a grid pattern on the sheet-shaped portion of the power transmission device 1. In addition, since the power transmission units A1 ″ to An ″ have the same configuration, the configuration of the power transmission unit A1 ″ will be described here. The power transmission unit A <b> 1 ″ includes a switch 5, a switching circuit 6, a primary side coil 7, a proximity sensor 8, a rectifying / smoothing circuit 35, and a switch 36.

  A commercial AC voltage (AC 100 V) is input to the rectifying and smoothing circuit 4 through the AC plug 1a and the cord 1b. The rectifying / smoothing circuit 4 rectifies and smoothes a commercial AC voltage (AC 100 V) to obtain a DC voltage and outputs the DC voltage. The switch 5 is turned on / off according to the output of the proximity sensor 8. When the proximity sensor 8 detects the approach of the electronic toy, the switch 5 is turned on to connect the rectifying / smoothing circuit 4 and the switching circuit 6. When the proximity sensor 8 does not detect the approach of the electronic toy, the switch 5 is turned off. Thus, the connection between the rectifying / smoothing circuit 4 and the switching circuit 6 is cut off.

  The operation button 39 is operated by the user, and the power transmission mode and the power reception mode are switched according to the output of the operation button 39. In the power transmission mode, the switching circuit 6 and the primary side coil 7 are connected by the switch 36, and in the power reception mode, the rectifying and smoothing circuit 35 and the primary side coil 7 are connected by the switch 36.

  First, the power transmission mode will be described. When the switch 5 is turned on, the switching circuit 6 converts the DC voltage supplied from the rectifying / smoothing circuit 4 or the charge / discharge control circuit 38 into a pulse voltage by switching, and outputs the pulse voltage to the primary coil 7. In the power transmission mode, when the charge / discharge control circuit 38 detects that the DC voltage is not output from the rectifying / smoothing circuit 4 (for example, when the AC plug 1a is not connected to the outlet), The storage battery 38 is discharged.

  Next, the power reception mode will be described. When a coil to which the pulse voltage of the electronic toy is supplied is brought close to the primary side coil 7, an induced voltage is induced in the primary side coil 7 by electromagnetic induction. That is, in the power receiving mode, the primary side coil 7 functions as a secondary side coil. The rectifying / smoothing circuit 35 rectifies and smoothes the induced voltage induced in the primary coil 7 to obtain a DC voltage, and outputs the DC voltage to the charge / discharge control circuit 37. The charge / discharge control circuit 37 charges the storage battery 38 with the DC voltage output from the rectifying / smoothing circuit 35.

  The electrical configuration of the electronic toys 33 and 34 is shown in FIG. In FIG. 18, the same parts as those in FIG. The electronic toys 33 and 34 are respectively a secondary coil 9, a rectifying / smoothing circuit 10, a motor drive circuit 11, a storage battery 15, a voltage detection circuit 16, a switch 40, a switching circuit 41, and an operation button 42. The charge / discharge control circuit 43 is provided.

  The operation button 42 is operated by the user, and the power reception mode from the power transmission device and the power transmission mode to the power transmission device are switched according to the output of the operation button 42. In the power receiving mode from the power transmission device, the secondary coil 9 and the rectifying / smoothing circuit 10 are connected by the switch 40, and in the power transmission mode to the power transmission device, the secondary coil 9 and the switching circuit 41 are connected by the switch 40.

  First, the power reception mode from the power transmission device will be described. When the secondary side coil 9 and the primary side coil to which the pulse voltage of the power transmission device 32 is supplied are close to each other, an induced voltage is induced in the secondary side coil 9 by electromagnetic induction. The rectifying / smoothing circuit 10 rectifies and smoothes the induced voltage induced in the secondary coil 9 to obtain a DC voltage, and outputs the DC voltage to the charge / discharge control circuit 43.

  When the DC voltage is supplied from the rectifying / smoothing circuit 10, the charge / discharge control circuit 43 outputs the DC voltage to the motor drive circuit 11 and steps down the DC voltage before supplying the storage battery 15 to the storage battery 15. Charge. The charge / discharge control circuit 43 monitors the voltage value of the storage battery 15 detected by the voltage detection circuit 16, and determines that the storage battery 15 is fully charged when the voltage value of the storage battery 15 reaches a predetermined value. The voltage supply to the storage battery 15 is stopped. Thereby, the overcharge of the storage battery 15 can be prevented.

  On the other hand, when the DC voltage is not supplied from the rectifying and smoothing circuit 10, the charge / discharge control circuit 43 discharges the storage battery 15, boosts the discharge voltage of the storage battery 15, and outputs it to the motor drive circuit 11.

  The motor drive circuit 11 drives a motor (not shown) using the DC voltage output from the charge / discharge control circuit 14 as a drive voltage. And when the said motor drives, the electronic toy which is a toy of a bicycle drive | works.

  Subsequently, a power transmission mode to the power transmission device will be described. The charge / discharge control circuit 43 discharges the storage battery 15, boosts the discharge voltage of the storage battery 15, and outputs the boosted voltage to the switching circuit 41. The switching circuit 41 converts the DC voltage supplied from the charge / discharge control circuit 43 into a pulse voltage by switching, and outputs the pulse voltage to the primary coil 9. When the primary coil of the power transmission device comes close to the secondary coil 9, an induced voltage is induced in the primary coil of the power transmission device by electromagnetic induction. That is, in the power transmission mode to the power transmission device, the secondary side coil 9 functions as a primary side coil, and the primary side coil of the power transmission device functions as a secondary side coil.

  The power supply system according to the sixth embodiment of the present invention has the same effect as the power supply system according to the second embodiment of the present invention, and transmits the power stored in the storage battery of the electronic toy after use of the electronic toy. When returning to the equipment side, the power returned to the power transmission equipment can be stored in the power transmission equipment, so the power returned to the power transmission equipment can be used effectively the next time the electronic toy is used. . In the present embodiment, since the power transmission device has a storage battery, it is not always necessary for the power transmission device to acquire a commercial AC voltage. Therefore, the power transmission apparatus may not include the rectifying and smoothing circuit for rectifying and smoothing the AC plug, the cord, and the commercial AC voltage.

  As an application example of the above-described power supply system according to the present invention, the upper surface of the power transmission device is a board game board as shown in FIG. 19, the electronic toy is a piece used for the board game, the piece has an LED, For example, receiving power from a device and causing the LED to emit light using the received power.

  Furthermore, a power transmission device whose upper surface is a board game board as shown in FIG. 19 may include a USB interface, a display device, and a microcomputer connected to the USB interface and the display device. In this way, it is possible to connect a power transmission device and an electronic device (for example, a personal computer) that can be connected to the Internet. By performing the connection as shown in FIG. Two power transmission devices can transmit and receive data via the Internet 44. And a power transmission apparatus displays the content of the data transmitted / received with the other power transmission apparatus on a display apparatus. By enabling Internet communication as described above, the range of play can be expanded.

These are figures which show the external appearance of the electric power supply system which concerns on 1st embodiment of this invention. These are figures which show the electrical constitution of the power transmission apparatus with which the electric power supply system of FIG. 1 comprises. These are figures which show the electrical constitution of the electronic toy which the electric power supply system of FIG. 1 comprises. These are figures which show the electrical constitution of the electronic toy with which the electric power supply system which concerns on 2nd embodiment of this invention comprises. These are figures which show the external appearance of the electric power supply system which concerns on 2nd embodiment of this invention when an electronic toy is a toy of a submarine. These are figures which show the external appearance of the electric power supply system which concerns on 2nd embodiment of this invention when an electronic toy is a toy of a rotary airplane. These are figures which show the electrical constitution of the electronic toy with which the electric power supply system which concerns on 3rd embodiment of this invention comprises. These are operation | movement flowcharts when the electric power supply by the electronic toys with which the electric power supply system which concerns on 3rd embodiment of this invention comprises is performed. These are figures which show the electrical structure of the power transmission apparatus with which the electric power supply system which concerns on 4th embodiment of this invention comprises. These are figures which show the electric constitution of the electronic toy with which the electric power supply system which concerns on 4th embodiment of this invention comprises. These are operation | movement flowcharts of the electric power supply system which concerns on 4th embodiment of this invention. These are other operation | movement flowcharts of the electric power supply system which concerns on 4th embodiment of this invention. These are figures which show the external appearance of the power transmission apparatus with which the electric power supply system which concerns on 5th embodiment of this invention comprises. FIG. 14 is a diagram showing an electrical configuration of a sheet-like unit included in the power transmission device of FIG. 13. These are figures which show the electrical structure of the unit of the other sheet-like shape which the power transmission apparatus of FIG. 13 comprises. These are figures which show the external appearance of the electric power supply system which concerns on 5th embodiment of this invention. These are figures which show the electrical structure of the power transmission apparatus with which the electric power supply system which concerns on 6th embodiment of this invention comprises. These are figures which show the electrical constitution of the electronic toy with which the electric power supply system which concerns on 6th embodiment of this invention comprises. These are the top views of the power transmission apparatus with which the upper surface which the electric power supply system which concerns on this invention comprises is a board game board. These are figures which show the internet connection example of the power transmission apparatus with which the electric power supply system which concerns on this invention comprises.

Explanation of symbols

1, 24, 31, 32 Power transmission equipment 1a AC plug 1b Code 2, 3, 12, 13, 17, 18, 25, 26, 33, 34 Electronic toy 4, 10, 19, 35 Rectification smoothing circuit 5, 20, 36 , 40 Switch 6, 6 ', 18, 41 Switching circuit 7 Primary coil 8 Proximity sensor 9 Secondary coil 11 Motor drive circuit 14, 14', 14 '', 37, 43 Charge / discharge control circuit 15, 38 Storage battery 16 Voltage detection Circuit 17 Water tank 21 Coil 22, 27, 29 Control circuit 23, 28, 30 Transmission / reception part 39, 42 Operation button 44 Internet A1-An, A1'-An ', A1''-An''Power transmission part B1-B10 Sheet shape Shape unit

Claims (9)

It is equipped with an electronic toy that is a power transmission device and a power reception device,
An electric power supply system capable of supplying electric power from the power transmission device to the electronic toy in an electrically non-contact manner.   The power supply system according to claim 1, wherein the electronic toy includes a power storage unit that stores power supplied from the power transmission device.   The power supply according to claim 1, wherein the power supply device includes a plurality of the electronic toys, the power transmission device includes a plurality of power transmission units, and the plurality of electronic toys can simultaneously receive power from the power transmission device. system.   A plurality of the electronic toys are provided, and each of the electronic toys can receive power from the power transmission unit and the other electronic toys that can supply the power stored in the power storage means to the other electronic toys. The power supply system according to claim 2, further comprising: a power reception unit. The electronic toy has an information output unit that outputs information on the amount of power to be supplied from the power transmission device to the electronic toy;
5. The power transmission device according to claim 1, further comprising: a power transmission unit; an information input unit that inputs the information; and a control unit that controls the power transmission unit based on the information input to the information input unit. The power supply system according to Crab.   The power supply system according to claim 1, wherein the power transmission device includes a power transmission unit and a control unit that controls an amount of power that the power transmission unit supplies to the electronic toy.   The power transmission system according to claim 1, wherein the power transmission device includes a plurality of sheet-shaped units that can be connected to each other. The electronic toy has power transmission means capable of supplying the power stored in the power storage means to the power transmission device in an electrically non-contact manner,
8. The power transmission device according to claim 1, further comprising: a power receiving unit that receives power supplied from the power transmission unit in an electrically non-contact manner; and a power storage unit that stores the power received by the power receiving unit. The power supply system according to Crab.   The power supply system according to claim 1, wherein the power transmission device has an interface for connecting to an electronic device capable of being connected to the Internet.

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