JP2016077024A - Contactless charger, program thereof and vehicle mounted with contactless charger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a user-friendly contactless charger capable of reducing a charge start sound which is emitted from a portable apparatus when the charging is interrupted.SOLUTION: The contactless charger includes: a charge coil 9 for charging a portable apparatus 11; a charge control unit 18 that controls the power supply from the charge coil 9; and a communication part 19 that communicates with the portable apparatus 11. The charge control unit 18 is configured to output a control signal representing a placement of the portable apparatus 11 at a position opposing to the charge coil 9 and a control signal representing a removal thereof from the opposing to the charge coil 9 to the portable apparatus 11 via the communication part 19.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a contactless charging apparatus that charges a portable device in a non-contact manner, a program thereof, and an automobile equipped with the contactless charging apparatus.

  This type of contactless charging apparatus includes a charging coil that charges a mobile device (for example, a mobile phone) and a charging control unit that controls energization of the charging coil, and supplies magnetic flux from the charging coil to the charging coil of the mobile device. Then, non-contact (non-contact) charging is performed on the portable device (as similar to this, for example, Patent Document 1 below).

JP 2010-104203 A

  In an automobile, electromagnetic waves emitted from a contactless charging device may affect vehicle control such as keyless entry. For this reason, the non-contact charging device has less influence on vehicle control due to interruption of charging or the like.

  However, when the charging is interrupted many times, there is a notification sound for notifying the start of charging every time from the portable device when charging is resumed, light emission of the LED, etc., which is very troublesome and not easy to use.

  Therefore, an object of the present invention is to improve the usability of a contactless charging apparatus that charges a portable device.

  In order to achieve this object, a contactless charging apparatus according to the first aspect of the present disclosure includes a charging coil that charges a portable device, a charging control unit that controls energization of the charging coil, and a communication unit that communicates with the portable device. The charging control unit transmits a control signal indicating installation of the portable device at a position facing the charging coil and a control signal indicating removal from the position facing the charging coil via the communication unit. In this way, the intended purpose is achieved.

  As described above, the contactless charging apparatus according to the first aspect of the present disclosure includes a charging coil that charges a portable device, a charging control unit that controls energization of the charging coil, and a communication unit that communicates with the portable device. Then, the charging control unit outputs a control signal indicating installation of the portable device at a position facing the charging coil and a control signal indicating removal from the position facing the charging coil to the portable device via the communication unit. The configuration. As a result, it is possible to improve the usability of the contactless charging apparatus for charging the portable device.

  That is, in charging using a normal cable, the portable device recognizes that the cable is connected. For example, when charging is resumed after full charging, a notification sound for starting charging does not sound.

  However, in non-contact charging, stopping charging means stopping power supply, and the mobile device is intentionally charged by the user whether the non-contact charging device interrupted charging for a moment. I can't recognize whether I took the mobile device from the stand and stopped charging.

  Therefore, the configuration is such that a control signal indicating installation and removal of the mobile device is output to the mobile device.

  Therefore, in the present invention, when the contactless charging device is used for in-vehicle use or the like, the contactless charging device often interrupts charging, but the notification sound is not generated from the portable device every time charging is resumed. Can be easy to use.

The perspective view which shows the inside of the motor vehicle carrying the non-contact charging device concerning one Embodiment of this invention The figure which shows the state in charge of the non-contact charging device concerning one Embodiment of this invention. The figure which shows the internal structure of the non-contact charging device concerning one Embodiment of this invention. The control block diagram of the non-contact charge device concerning one embodiment of the present invention Flowchart of operation of contactless charging apparatus according to one embodiment of the present invention

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

(Embodiment 1)
In FIG. 1, a handle 3 is arranged in front of a car interior 2.

  An in-vehicle device 4 is provided on the left side of the handle 3 between the driver seat and the passenger seat in the vehicle 2. Further, a contactless charging device 5 is provided below the in-vehicle device 4.

  The in-vehicle device 4 is typically a navigation device that provides route guidance from a departure place to a destination, or an audio device that has a CD playback and radio reception function.

  As shown in FIGS. 2 and 3, the contactless charging device 5 includes a box-shaped main body case 7 in which an installation plate 8 is disposed on the upper surface, and a state facing the lower surface side of the installation plate 8 in the main body case 7. The charging coil 9 is provided so as to be movable in the horizontal direction, the driving means 10 for moving the charging coil 9 in the horizontal direction so as to face the lower surface side of the installation plate 8, and the driving means 10 and the charging coil 9 are connected. And a charge control unit (18 in FIG. 4).

  FIG. 2 shows a state where the mobile device 11 is charged.

  As shown in FIG. 4, the in-vehicle device 4 is a general device having a display 6, a radio reception unit 12, an audio output unit 13, and a control unit 14 thereof. 15 is connected.

  The contactless charging device 5 includes a charging coil 9 that charges the portable device 11 and a charging control unit 18 that is connected to the charging coil 9 via a charging drive circuit 17.

  Furthermore, the communication part 19 connected to the charge control part 18 is provided. The communication unit 19 communicates with the communication unit 21 via the charging coil 9 and the charging coil 20 of the mobile device 11. However, the present invention is not limited to this, and communication using Bluetooth (registered trademark) or NFC (abbreviation of Near Field Communication, which is wireless communication over an extremely short distance of about 1 meter to several centimeters) may be used.

  In particular, when the contactless charging device 5 has a box shape into which the portable device 11 is inserted from the opening, a communication unit 19 using NFC is disposed in the opening. That is, the communication part 19 is installed in the path | route which the portable apparatus 11 opposes the charging coil 9, and the path | route which removes.

  If it does so, the communication part 19 using NFC can output the control signal which shows installation to the portable apparatus 11, when the portable apparatus 11 is installed. Further, the communication unit 19 using NFC can output a control signal indicating removal to the portable device 11 when the portable device 11 is removed.

  Furthermore, the charging control unit 18 of the contactless charging device 5 is connected to the vehicle control unit 22. The vehicle control unit 22 is connected to the vehicle-mounted device 4 and is also connected to a vehicle electrical device such as the keyless entry unit 23.

  The keyless entry unit 23 controls the locking and unlocking of the door, the engine starting, and the like by the radio wave of a small transmitter incorporated in the key body. Since the radio frequency used for the keyless entry and the radio frequency used by the contactless charging device 5 are close, radio interference may occur.

  Therefore, for example, the vehicle control unit 22 receives a control signal from a device in the vehicle such as the keyless entry unit 23 and outputs a non-chargeable signal to the contactless charging device 5. In this embodiment, the keyless entry is described as an example. However, in order to prioritize other vehicle control, a charge disable signal may be output to the contactless charging device 5.

  The charge disable signal is typically a signal indicating that vehicle control such as keyless entry is in operation.

  On the other hand, the mobile device 11 is typically a mobile phone (including a smartphone), and as is well known, a charging coil 20, a terminal control unit 24 connected to the charging coil 20, a charging battery 25, And a display 26 connected to the terminal control unit 24, an operation unit 27, an image processing unit 28, and a notification unit 29 (for example, an audio output unit).

  The portable device 11 normally emits a charging start sound that notifies the start of charging from the notification unit 29.

  Moreover, the communication part 21 is connected to the terminal control part 24 of this portable apparatus 11, and the various information is transmitted / received with the communication part 19 connected to the charge control part 18 as mentioned above.

  In the above configuration, a process for charging the mobile device 11 will be described with reference to FIG.

  First, when the contactless charging device 5 is turned on, the charging control unit 18 checks whether or not communication with the portable device 11 is possible via the charging coil 9. If the communication is possible, the charging control unit 18 determines that the portable device 11 is placed on the installation board 8 (step S1).

  Then, the charging control unit 18 outputs a control signal indicating installation of the mobile device 11 at a position facing the charging coil 9 to the mobile device 11 via the communication unit 19.

  Next, in step S3, the charging control unit 18 causes the charging drive circuit 17 to start charging, and proceeds to step S4.

  In step S4, when the charge control unit 18 obtains a signal indicating that the keyless entry operation is being performed (charge impossible signal) from the vehicle control unit 22, the charge control unit 18 stops charging (step S5). It should be noted that the charge disable signal is output from the vehicle control unit 22 when the keyless entry operation is not being performed, for example, when the output of the battery is reduced or other devices that require a large amount of power are connected.

  When the charging control unit 18 obtains a signal indicating that the keyless entry operation is being performed from the vehicle control unit 22 (charge impossible signal), a control signal that is not notified when charging is resumed is immediately transmitted to the portable device 11 via the communication unit 19. You may make it output.

  Next, when it is confirmed that the portable device 11 has been removed from the installation plate 8 after the interruption of charging (step S6), the charging control unit 18 starts from a position facing the charging coil 9 via the communication unit 19. A control signal indicating removal of the portable device 11 is output to the portable device 11 (step S7).

  As described above, the mobile device 11 that has acquired the control signal indicating the installation of the mobile device 11 at a position facing the charging coil 9 is in a charged state without performing a notification operation to notify the start of charging, such as a notification sound or LED light emission. Migrate to In addition, you may make it perform the alerting | reporting operation | movement which notifies charge start only once.

  On the other hand, the mobile device 11 that has acquired a control signal indicating removal of the mobile device 11 from a position facing the charging coil 9 performs a notification operation to notify the start of charging, such as a notification sound or LED light emission.

  After that, if the same or different portable device 11 is placed on the installation plate 8 and the charging control unit 18 can confirm that it can communicate with the portable device 11 via the charging coil 9, the portable device 11 is placed on the installation plate 8. (Step S6).

  Then, the charging control unit 18 outputs a control signal indicating installation of the portable device 11 at a position facing the charging coil 9 to the portable device 11 via the communication unit 19 (step S8).

  Next, when the charge control unit 18 obtains a signal indicating that the keyless entry is not operating (chargeable signal) from the vehicle control unit 22 (step S9), a control signal that is not notified when charging is resumed via the communication unit 19 Is output to the portable device 11 (step S10). Thereafter, the charging control unit 18 resumes charging (step S11).

  At this time, the portable device 11 that has acquired a control signal that is not notified when charging is resumed shifts to a charged state without performing a notification operation that notifies the start of charging, such as a notification sound or LED light emission.

  When it is confirmed that the portable device 11 has been removed from the installation plate 8 after the interruption of charging, the charging control unit 18 may not output a control signal that is not notified when charging is resumed to the portable device 11. Good. This is because the user may remove the mobile device 11 from the installation plate 8 in order to charge the mobile device 11 different from the mobile device 11 that has been charged up to now. In this case, it is preferable to perform a notification operation informing the start of charging from the mobile device 11.

  Although the operation flow of FIG. 5 has been described as a program installed in the contactless charging device 5, this program can be installed in any of the in-vehicle device 4, the contactless charging device 5, and the portable device 11. It is.

  As described above, the contactless charging device 5 according to the first aspect of the present embodiment includes the charging coil 9 that charges the portable device 11, the charging control unit 18 that controls energization of the charging coil 9, and the mobile phone. A communication unit 19 that communicates with the device 11, and the charging control unit 18, via the communication unit 19, a control signal indicating the installation of the portable device 11 at a position facing the charging coil 9, and the charging coil 9 A control signal indicating removal from the facing position is output to the portable device 11. As a result, the usability of the contactless charging device 5 for charging the portable device 11 is improved.

  That is, in charging using a normal cable, the mobile device 11 recognizes that the cable is connected, and for example, when charging is resumed after full charging, the charging start notification sound does not sound. .

  However, in the non-contact charging, stopping the charging is stopping the power supply, and the portable device 11 is intentional by the user whether the non-contact charging device 5 interrupts the charging for a moment. It is not possible to recognize whether the mobile device 11 is taken up from the charging stand and the charging is stopped.

  In view of this, the control signal indicating the installation and removal of the mobile device 11 is output to the mobile device 11.

  Therefore, in the present invention, when the contactless charging device 5 is used for in-vehicle use or the like, the contactless charging device often interrupts charging, but does not emit a notification sound from the portable device 11 each time charging is resumed. It will be easy to use.

  As described above, the contactless charging apparatus of the present invention includes a charging coil that charges a portable device, a charging control unit that controls energization of the charging coil, and a communication unit that communicates with the portable device. Is configured to output a control signal indicating installation of the mobile device at a position facing the charging coil and a control signal indicating removal of the mobile device from the position facing the charging coil to the mobile device via the communication unit. did. This can improve the usability when charging the portable device.

  Therefore, utilization as a non-contact charging apparatus which charges various kinds of portable devices is expected.

2 Car interior 3 Handle 4 Vehicle-mounted device 5 Contactless charging device 6 Display 7 Body case 8 Installation plate 9 Charging coil 10 Driving means 11 Portable device 12 Radio receiving unit 13 Audio output unit 14 Control unit 15 Speaker 17 Charging drive circuit 18 Charge control unit 19, 21 Communication unit 20 Charging coil 22 Vehicle control unit 23 Keyless entry unit 24 Terminal control unit 25 Rechargeable battery 26 Display 27 Operation unit 28 Image processing unit 29 Notification unit

Claims (6)

A charging coil for charging the portable device, a charging control unit for controlling energization of the charging coil, and a communication unit for communicating with the portable device,
The charging control unit is configured to control, via the communication unit, a control signal indicating installation of the portable device at a position facing the charging coil, and removal of the portable device from a position facing the charging coil. A contactless charging device that outputs a signal to the portable device.   When the communication unit starts communication with the portable device via the charging coil, the charging control unit outputs a control signal indicating installation to the portable device and communicates with the portable device via the charging coil. The contactless charging apparatus according to claim 1, wherein when the communication is disconnected, a control signal indicating removal is output to the portable device.   The charging control unit outputs a control signal indicating installation to the portable device when the communication unit is capable of regular communication with the portable device via the charging coil, and the portable device via the charging coil. The contactless charging apparatus according to claim 1, wherein when the periodic communication is impossible, a control signal indicating removal is output to the portable device. The communication unit is disposed in a path that causes the portable device to face the charging coil, and a path that is removed.
The charging control unit outputs a control signal indicating installation to the portable device when the portable device is installed via the communication unit, and outputs a control signal indicating removal when the portable device is removed. The contactless charging apparatus according to claim 1, wherein the contactless charging apparatus outputs to a portable device.   A program for causing a computer to execute a step of outputting a control signal indicating installation and removal of a portable device to and from the contactless charging device to the portable device.   An automobile in which the contactless charging device according to any one of claims 1 to 4 is installed in a vehicle.