JP2019106841A - Appliance storage container and power supply system - Google Patents

Abstract

To allow easy positioning of an electronic apparatus to an appliance storage container when mounting the electronic apparatus, and efficient power supply.SOLUTION: A pen tray 110 housing an electronic pen having a power reception coil receiving a power wirelessly to an end part, comprises: a mounting surface 111 to which the electronic pen is mounted; a plurality of side surfaces 112 to 115 connected to the mounting surface 111, and forming a container with the mounting surface 111; and a power transmission coil 102 provided on the side surface 112 to which the end part of the electronic pen is contacted when the electronic pen is mounted to the mounting surface 111 in a direction along the power reception coil of the electronic pen mounted.SELECTED DRAWING: Figure 6

Description

  The present invention relates to an apparatus storage container and a power supply system.

  Conventionally, a so-called "electronic information board" in which a touch panel is mounted on a display of about 40 inches to 60 inches using a flat panel such as liquid crystal or plasma or a projector is known as a product.

  For example, the electronic information board includes a main body and an electronic pen (electronic device), and is connected to a user's PC (Personal Computer) or the like by a cable. Further, the main body has a display for displaying an image and a pen tray (device storage container) for placing and storing the electronic pen. Then, when the position coordinate at which the electronic pen contacts the display is detected, the handwriting of the electronic pen is drawn at the coordinate. Such an electronic information board can display the screen of a connected PC on a display in a large scale, and is used, for example, in a presentation at a meeting of a company or an administrative agency, an educational institution, or the like.

  Here, the above-mentioned electronic pen is equipped with a battery, and when the remaining amount of the battery runs out, it has to be removed from the electronic pen and replaced or recharged, resulting in a problem that it takes time for the user .

  Therefore, wireless power supply is known as a technology for wirelessly supplying power from a power source to an electronic device such as an electronic pen. This has the advantage that, at the time of power supply, it is not necessary to replace the wiring of the power cord and the battery.

  Specifically, for example, a combination (hereinafter referred to as a combination) of a rinse glass and a charger for an electric toothbrush that wirelessly feeds an electric toothbrush is known (see Patent Document 1). The combination of this patent document 2 is configured to install a cup-shaped device on the power transmitter, and after tooth brushing, the cup for rinsing the mouth and the device for placing the toothbrush at the time of charging are made common. Then, a power reception coil is built in the end of the handle of the toothbrush to perform wireless power feeding.

  However, as in the case of Patent Document 1, when the storage place of the electronic pen is formed into a cup shape, the user needs to put the electronic pen into the narrow cup-shaped mouth or check the direction of the electronic pen.

  The present invention has been made in view of the above, and it is an object of the present invention to provide an apparatus storage container which can be easily aligned when the electronic apparatus is placed on the apparatus storage container and can efficiently supply power, and a power supply system. I assume.

  In order to solve the problems described above and achieve the object, the present invention is a device storage container for storing an electronic device having a power receiving coil wirelessly receiving power at an end portion, and the electronic device is mounted A plurality of side surfaces connected to the placement unit, the placement unit, and forming a container with the placement unit, and the end portion of the electronic device contacts when the electronic device is placed on the placement unit And a power transmission coil provided in a direction along the power reception coil of the electronic device placed on the side surface.

  ADVANTAGE OF THE INVENTION According to this invention, when mounting an electronic device in an apparatus storage container, it can position easily and it is effective in the ability to be able to electrically feed efficiently.

FIG. 1 is an entire configuration diagram of the electronic information board of the first embodiment. FIG. 2 is a diagram showing the principle and configuration of an electromagnetic induction system. FIG. 3 is a diagram showing a hardware configuration of the electronic information board of the first embodiment. FIG. 4 is a block diagram showing a functional configuration of the electronic information board of the first embodiment. FIG. 5 is a view showing a configuration example of the electronic pen. FIG. 6 is a view showing a configuration example of a pen tray of the first embodiment and the periphery thereof. FIG. 7 is a view showing a configuration example of a pen tray of the second embodiment and the periphery thereof. FIG. 8 is an explanatory view of the center of gravity of the electronic pen. FIG. 9 is a view showing a configuration example of a pen tray of the third embodiment and the periphery thereof. FIG. 10 is a view showing a configuration example of a pen tray of the fourth embodiment and the periphery thereof. FIG. 11 is a cross-sectional view of the pen tray. FIG. 12 is a view showing a configuration example of a pen tray of the fifth embodiment and the periphery thereof. FIG. 13 is a cross-sectional view of the pen tray. FIG. 14 is a view showing a configuration example of a pen tray of the sixth embodiment and the periphery thereof. FIG. 15 is a cross-sectional view of a pen tray. FIG. 16 is a block diagram showing a functional configuration of the electronic information board of the sixth embodiment. FIG. 17 is a flowchart showing the flow of the transport process of the electronic pen in the electronic information board of the present embodiment. FIG. 18 is a block diagram showing a functional configuration of the electronic information board of the seventh embodiment. FIG. 19 is a view showing a configuration example of a pen tray of the seventh embodiment and the periphery thereof. FIG. 20 is a cross-sectional view of the pen tray. FIG. 21 is an explanatory diagram regarding Ampere's law. FIG. 22 is a view showing a configuration example of a pen tray of the eighth embodiment and the periphery thereof. FIG. 23 is a block diagram showing a functional configuration of the electronic information board of the eighth embodiment. FIG. 24 is a flow chart showing a flow of power supply processing of the electronic pen in the electronic information board of the present embodiment.

  Hereinafter, embodiments of a device storage container and a power feeding system will be described in detail with reference to the attached drawings. In the following embodiment, an electronic pen is taken as an example of an electronic device, a pen tray for placing and storing the electronic pen is taken as an example of an apparatus storage container, and an electronic information board including an electronic pen and a pen tray will be described.

First Embodiment
The electronic information board has, for example, a handwriting function capable of writing characters and figures on the display screen with an electronic pen. As a method of utilizing this handwriting function, there are a method of displaying a pure canvas screen on a display and handwriting on it, a method of projecting a screen of a personal computer connected on the display and handwriting on it. In addition, the electronic information board also has a function to save the handwritten screen.

  By utilizing such a handwriting function, for example, while operating the display material for explanation in an office meeting etc., the written matters etc. are directly written on the screen as needed, and further writing is included as necessary. Screen contents can be recorded. As a result, it is possible to review the screen contents at the end of the meeting and reuse the screen contents to efficiently summarize the conclusions.

  FIG. 1 is an entire configuration diagram of the electronic information board of the first embodiment. As shown in FIG. 1, the electronic information board 1 includes a main body 200, an electronic pen 300, a pen tray 110, and PCs 4a and 4b used by a user. The electronic information board 1 and the PCs 4a and 4b are connected by cables 5a and 5b, respectively.

  The main body 200 is a device capable of displaying a display image from the PCs 4 a and 4 b on the display (display unit) 201 and displaying a drawing image generated by the user. Further, the main body 200 generates a user operation event by the touch on the display 201, and changes the display content accordingly.

  The PCs 4 a and 4 b provide an image (display image) to be displayed on the display 201. The PCs 4a and 4b are provided with terminals for outputting image signals, and supply the image signals forming the display images of the PCs 4a and 4b to the main body 200 at a predetermined rate (for example, 30 frames per second). In the present embodiment, the PCs 4 a and 4 b have output terminals as terminals, and can transmit an image signal to the main body 200 via the cables 5 a and 5 b.

  The electronic pen 300 detects the pressure from the pen tip, and wirelessly transmits the result as a pressure detection signal to the main body 200. In the main body 200, when both of the position coordinate detection signal from the touch panel attached to the surface of the display 201 and the pressure detection signal from the electronic pen 300 are obtained, drawing from the pen's handwriting on the coordinates detected on the display 201 Do.

  When only the position coordinate detection signal from the touch panel is obtained, it is determined that the finger other than the electronic pen 300 is in contact with the display 201, and the pen's handwriting is not drawn.

  The pen tray 110 is a container (tray) in which the electronic pen 300 is placed and stored. The electronic information board 1 of this embodiment performs wireless power supply from the pen tray 110 to the electronic pen 300 when the electronic pen 300 is stored in the pen tray 110. That is, the pen tray 110 has a built-in power transmission coil, and the electronic pen 300 wirelessly supplies power by inducing current to the built-in reception coil.

  Here, the reason for the container (tray) which mounts and accommodates the electronic pen 300 like the pen tray 110 of this embodiment as a storage place of the electronic pen 300 is demonstrated. For example, when the storage place of the electronic pen is a cup-shaped container, it is assumed that the storage place is placed beside the display of the electronic information board for convenience. However, when a cup-shaped storage space is generally installed beside the horizontally-long display, the width of the entire electronic information board is increased, and the installation in a conference room or the like is restricted. In addition, if the storage location of the electronic pen is a cup-shaped container, the user needs to put the electronic pen into the narrow cup-shaped mouth or check the direction of the electronic pen, which causes trouble.

  In addition, a configuration will be described in which power is supplied by mounting an electronic pen with a clip mechanism attached thereto such that the clip mechanism is in contact with the bottom surface of the pen tray, as in the present embodiment. Even if the electronic pen is placed on the pen tray in such a configuration, the clip mechanism of the electronic pen does not always stand still in contact with the bottom surface of the pen tray. Therefore, the power transmission efficiency from the pen tray to the electronic pen can not always be improved. That is, for example, since the clip mechanism may contact the inner side surface of the pen tray, the orientation of the power receiving coil is not always constant. As described above, charging can not be performed unless the positional relationship between the transmitting coil and the receiving coil is not parallel.

  Next, wireless power feeding will be described. Wireless power feeding is a technology for wirelessly supplying power from a power source to an electronic device such as the electronic pen 300, and has the advantage that it is not necessary to wire power cords and replace batteries. As products incorporating this wireless power feeding technology, electric toothbrushes, watches, portable terminals and the like are already known, and in the future, their application to notebook PCs and electric vehicles is expected. In addition, this technology is also applicable to the electronic pen 300 of the electronic information board 1 as in the present embodiment.

  There are various types of wireless power supply methods such as an electromagnetic induction method, an electromagnetic resonance method, and a radio wave method. Among them, the electromagnetic induction system has been established earlier in the standard than the other system, and wireless power supply products currently put into practical use often adopt this electromagnetic induction system. The electromagnetic induction method of wireless power feeding will be described below.

  FIG. 2 is a diagram showing the principle and configuration of an electromagnetic induction system. The electromagnetic induction system is configured to include coils on the power transmission side and the power reception side. In the electromagnetic induction system, as shown in FIG. 2, the coil α on the power transmission side and the coil β on the power reception side are sufficiently brought close, an alternating current flows through the coil α on the power transmission side, a magnetic flux is generated in the coil α, An alternating current is induced in the coil β on the power reception side. This utilizes Faraday's law in which an electromotive force is generated when a magnetic flux penetrating the coils α and β is changed.

  At the front stage of the coil α on the power transmission side, there is an inverter that generates an alternating current. Further, there is a rectifier circuit for converting an alternating current to a direct current in the subsequent stage of the coil β on the power receiving side, and there is a battery for storing the direct current in the subsequent stage. In order to transmit power in this manner, it is necessary to bring the coil α on the power transmission side and the coil β on the power reception side close to about 30 mm. In addition, if the power transmission coil α and the power reception coil β are not precisely aligned, the magnetic flux penetrating the power reception coil β can not be secured, and the transmission efficiency is lowered.

  As described above, the electronic information board 1 is configured to wirelessly supply power from the pen tray 110 to the electronic pen 300, so it is possible to reduce the time and effort for the user to replace the battery when the remaining amount of the battery decreases. . In addition, it is not necessary to fit the charge terminals on the power transmission side and the power reception side like the wired charging, and it is possible to give the electronic pen 300 a certain degree of freedom at the mounting position. Furthermore, it is possible to avoid the risk that charging can not be performed due to wear of the charging terminals on the power transmission side and the power receiving side, such as wired charging.

  Next, the details of the electronic information board 1 will be described. FIG. 3 is a diagram showing a hardware configuration of the electronic information board of the first embodiment. As shown in FIG. 3, the electronic information board 1 includes a CPU 11, a ROM 12, a RAM 13, a communication I / F 14, an electronic pen 300, a display 201, and an inverter 230.

  The CPU 11 centrally controls the operation of the electronic information board 1. For example, an operating system such as Windows (registered trademark) series, UNIX (registered trademark), LINUX (registered trademark) or the like is operated. A program written in a programming language such as C, C ++, Java (registered trademark), JavaScript (registered trademark), etc. is executed under management.

  The ROM 12 is a non-volatile memory that stores various data such as a boot program such as a BIOS. The RAM 13 is a main storage device such as a DRAM or an SRAM, and is a volatile memory that functions as a work area (work area) for various processes executed by the CPU 11. The CPU 11 reads a program from the ROM 12, develops the program on the RAM 13, and executes the program.

  The communication I / F 14 is an interface for connecting to a network. The communication I / F 14 according to the present embodiment is, for example, a terminal that receives the image signal which is an image input terminal 211a, 211b (see FIG. 4) and forms a display image of the PC 4a, 4b. The shape of the image input terminals 211a and 211b is, for example, a video graphics array (VGA) connector, a high-definition multimedia interface (HDMI (registered trademark)) connector, a display port connector, or the like.

  The display 201 is a device that displays various types of information, and is, for example, a liquid crystal display device or the like, and has a touch panel 210 (see FIG. 4) integrally formed on the display surface. The touch panel 210 detects position coordinates touched by the electronic pen 300, and the detected position coordinate detection signal is transmitted to the event processing unit 228 (see FIG. 4) of the main body 200.

  The electronic pen 300 is a device used by the user to operate the touch panel 210, detects the pressure when the pen tip is pressed, and wirelessly transmits the detected pressure detection signal to the event processing unit 228 of the main body 200. Be done.

  The inverter 230 converts the direct current in the main body 200 into an alternating current. Then, the current converted into the alternating current is flowed to the power transmission coil built in the pen tray 110 (see FIG. 6).

  Next, the functional configuration of the electronic information board 1 will be described. FIG. 4 is a block diagram showing a functional configuration of the electronic information board of the first embodiment. As shown in FIG. 4, the electronic information board 1 according to the present embodiment includes an image acquisition unit 223, a layout management unit 229, an event processing unit 228, a drawing generation unit 224, an application image generation unit 225, and image synthesis. The configuration is mainly provided with a unit 226 and a display control unit 227.

  The image acquisition unit 223 acquires a display image from the user's PC 4a, 4b. Specifically, the image acquisition unit 223 receives an image signal of a display image input from the PC 4 a or 4 b via the image input terminal 211 a or 211 b. The image acquisition unit 223 also has a function of detecting the presence or absence of an input of an image signal, and sends input presence / absence information indicating the presence or absence of an input of the detected image signal to the layout management unit 229.

  The layout management unit 229 determines whether the display image acquired from the PC 4 a or 4 b is to be superimposed on each display window to be combined by the image combining unit 226, and transmits the determination result to the image combining unit 226. The determination criterion of superimposition is input presence / absence information from the image acquisition unit 223, superimposes if there is an input, and does not superimpose if there is no input.

  The event processing unit 228 receives the position coordinate detection signal from the touch panel 210 and the pressure detection signal from the electronic pen 300, and determines an event from those signals. Specifically, for example, the event processing unit 228 determines an event based on which part of the display 201 the electronic pen 300 has touched.

  For example, a button or menu drawn by the application image generation unit 225 is displayed on the display 201, and the event processing unit 228 detects the button or menu when the electronic pen 300 is in contact with the button or menu. The operation content indicated by is determined to be an event, and is transmitted to the layout management unit 229. In addition, when the electronic pen 300 is in contact with a place other than a button or a menu, the event processing unit 228 determines that the user is drawing a pen and reflects the drawing image generated by the drawing generation unit 224.

  The drawing generation unit 224 detects the pressure received from the electronic pen 300 when the event processing unit 228 determines that the user's pen drawing is performed (when the electronic pen 300 is in contact with a button or a place other than the menu on the touch panel 210). Generate a drawn image based on the signal.

  The application image generation unit 225 generates, as an image displayed on the display 201, an image such as a button or a menu indicating operation content of various settings of the electronic information board 1.

  The image combining unit 226 generates various display windows to be displayed on the display 201. Specifically, as display windows, display windows for displaying display images acquired from the PCs 4 a and 4 b, display windows for displaying drawn images by user's pen drawing, and buttons indicating operation contents of various settings of the electronic information board 1 And display windows for displaying menus and the like. The image composition unit 226 superimposes (composes) these display windows to generate a composite image to be displayed on the display 201.

  Note that the display image acquired from the PC 4a, 4b is from the image acquisition unit 223, the drawing image by the user's pen drawing is from the drawing generation unit 224, and buttons and menus etc showing operation contents of various settings of the electronic information board 1 are application images. It is received from the generation unit 225.

  The display control unit 227 performs control to display various information such as an image on the display 201. In the present embodiment, the display control unit 227 displays the combined image generated by the image combining unit 226 on the display 201.

Next, the details of the electronic pen 300 will be described. FIG. 5 is a view showing a configuration example of the electronic pen. As shown in FIG. 5, the electronic pen 300 includes a battery 31, a power supply circuit 32, a pen point 33, a pressure sensor 34, a signal processing circuit 35, a signal transmission unit 36, a rectifier circuit 37, and a power receiving coil. It consists of 38 and. Further, as shown in FIG. 5, the electronic pen 300 has a length L ₀ in the longitudinal direction and a length W ₀ in the lateral direction.

  The power receiving coil 38 receives power transmitted from the power transmitting coils 102 and 103 (see FIG. 6) of the main body 200, and is disposed at the end of the pen of the electronic pen 300. The receiving coil 38 generates a current when a magnetic flux is generated at the center of the coil, and sends the current to the rectifying circuit 37.

  The rectifier circuit 37 converts the alternating current received from the power receiving coil 38 into a direct current, and sends the direct current to the battery 31.

  Battery 31 internally stores the current received from rectifier circuit 37.

  The power supply circuit 32 converts the power supply voltage acquired from the battery 31 into voltage values used by the pressure sensor 34, the signal processing circuit 35, and the signal transmission unit 36, and outputs the voltage values.

  The pen tip 33 is a pen tip having a movable area in the vertical direction (longitudinal direction of the electronic pen 300) in the figure, and a downward pushing force is given by a mechanism using an elastic body such as a spring. Then, when the pen point 33 is pressed against the display 201, the pen tip 33 moves upward in the figure against the force of the spring and pushes the pressure sensor 34.

  The pressure sensor 34 detects the pressure from the pen tip 33, and transmits the result as a pressure detection signal to the signal processing circuit 35.

  When receiving the pressure detection signal from the pressure sensor 34, the signal processing circuit 35 transmits a control signal which is a transmission instruction of the pressure detection signal to the signal transmission unit 36.

  The signal transmission unit 36 transmits a wireless signal such as an infrared signal, and upon receiving a control signal from the signal processing circuit 35, transmits a pressure detection signal to the main body 200.

  Here, the infrared signal is composed of a period in which infrared light is emitted at a constant frequency called a carrier frequency and a period in which the infrared signal is not emitted. A pressure detection signal is reflected on the infrared signal by emitting infrared when in contact and not emitting infrared when not in contact.

  Next, the details of the pen tray 110 will be described. FIG. 6 is a view showing a configuration example of a pen tray of the first embodiment and the periphery thereof.

  The pen tray 110 is an example of an apparatus storage container for storing an electronic device such as the electronic pen 300, and is attached to the lower part of the display 201 of the main body 200 of the electronic information board 1 (see FIG. 1). As shown in FIG. 6, the pen tray 110 includes a placement surface 111, side surfaces 112, 113, 114, and 115, and power transmission coils 102 and 103.

  The placement surface 111 is a bottom surface of the pen tray 110 on which the electronic pen 300 is placed, and is an example of a placement unit.

The side surfaces 112 to 115 are side surfaces of the pen tray 110 which is connected to each side of the mounting surface 111 and which forms a container together with the mounting surface 111. The side surfaces 112 to 115 form an opening of the pen tray 110 capable of containing the electronic pen 300. This opening, the longitudinal direction of the inner dimension _{L 1} of the pen tray 110 is equal to the length _{L 0} of the electronic pen 300 _{(L 1} ≒ _{L 0),} the electronic pen 300 pen tray 110 is accommodated, pen ass Are in contact with or close to the side wall 112 or the inner wall of the side wall 113 of the pen tray 110. However, the inner dimension L ₁ in the longitudinal direction of the pen tray 110 is never smaller than the length L ₀ of the electronic pen 300. Further, the inner dimension W ₁ in the short direction of the pen tray 110 is equal to or larger than the thickness W ₀ of the electronic pen 300 (W ₁ WW ₀ ).

  When the electronic pen 300 is mounted on the mounting surface 111, the power transmission coils 102 and 103 are provided on the side surfaces 112 and 113 on the side where the end portion provided with the power receiving coil 38 of the electronic pen 300 is in contact. In addition, the power transmission coils 102 and 103 are provided in parallel with the power reception coil 38 in the direction along the power reception coil 38 of the electronic pen 300 mounted on the mounting surface 111. Power transmission coils 102 and 103 flow the alternating current received from inverter 230 to generate magnetic flux in the periphery.

  In the present embodiment, the electronic pen 300 is placed and stored so that the longitudinal direction of the electronic pen 300 is the longitudinal direction of the pen tray 110. Further, the electronic pen 300 is placed in either the direction in which the pen tip 33 faces the side surface 113 or the direction in which the pen tip 33 faces the side surface 112. Therefore, the power transmission coils 102 and 103 are provided on the side surfaces 112 and 113 connected to both ends in the longitudinal direction of the mounting surface 111, respectively.

  As described above, in the electronic information board 1 according to the first embodiment, the length of the electronic pen 300 and the inner size in the longitudinal direction of the pen tray 110 are equal to each other. , 103 are provided. Therefore, if the user places the electronic pen 300 along the longitudinal direction of the pen tray 110, the power receiving coil 38 of the electronic pen 300 and the power transmission coils 102 and 103 of the pen tray 110 are aligned regardless of the orientation of the electronic pen 300. it can. Therefore, when the electronic pen 300 is placed on the pen tray 110, alignment can be easily performed without increasing the number of other components, and power can be efficiently supplied.

Second Embodiment
The electronic information board of the first embodiment has a configuration in which power transmission coils are provided on the side surfaces of both ends of the pen tray. On the other hand, in the electronic information board of the present embodiment, the placement surface of the pen tray is inclined, and the power transmission coil is provided on the side surface on the lower side of the inclination.

  The entire configuration of the electronic information board, the hardware configuration, the functional configuration, and the configuration of the electronic pen are the same as in the first embodiment (see FIGS. 1 to 5).

  Below, the detail of the pen tray 120 of this embodiment is demonstrated. FIG. 7 is a view showing a configuration example of a pen tray of the second embodiment and the periphery thereof.

  The pen tray 120 is attached to the lower part of the display 201 of the main body 200 of the electronic information board 1 (see FIG. 1). As shown in FIG. 7, the pen tray 120 includes a mounting surface 121, side surfaces 122, 123, 124, and 125, and a power transmission coil 102.

  The placement surface 121 is a bottom surface of the pen tray 120 on which the electronic pen 300 is placed, and is an example of a placement unit. The mounting surface 121 is inclined to be deep along the longitudinal direction. In the present embodiment, the mounting surface 121 is inclined such that the mounting surface 121 is deepened from one end connected to the side surface 123 toward the other end connected to the side surface 122. Therefore, the electronic pen 300 is placed with the power receiving coil 38 directed to the side surface 122, and moves on the mounting surface 121 inclined by its own weight to contact the pen end and the inner wall of the side surface 122 of the pen tray 120. Or has a configuration that is close.

The side surfaces 122 to 125 are side surfaces of the pen tray 120 connected to the sides of the mounting surface 121 and forming a container with the mounting surface 121. The side surfaces 122 to 125 form an opening of the pen tray 120 capable of containing the electronic pen 300. This opening, the longitudinal direction of the inner dimension _{L 2} of the pen tray 120 is in the _{L 0} greater than or equal to the length of the electronic pen _{300 (L 2> L 0)} . The inner dimension _{W 2} in the transverse direction of the pen tray 120 has become equal to or greater than the thickness _{W 0} of the electronic pen 300 _{(W 2} ≧ _{W 0).}

  The power transmission coil 102 is provided on the side surface 122 located on the lower side of the slope of the mounting surface 121, that is, the side surface 122 on which the mounting surface 121 is deeper. In addition, when the electronic pen 300 is placed, the power transmission coil 102 is provided in a direction along the power receiving coil 38 of the electronic pen 300, that is, parallel to the power receiving coil 38. Power transmission coil 102 passes the alternating current received from inverter 230 to generate magnetic flux in the periphery.

  In the present embodiment, the electronic pen 300 is placed and stored so that the longitudinal direction of the electronic pen 300 is the longitudinal direction of the pen tray 120. Further, when the electronic pen 300 is placed in the direction in which the pen tip 33 faces the side surface 123 (that is, the direction in which the pen end faces the side surface 122), the electronic pen 300 moves toward the side surface 122 with the inclined placement surface 121. Do. Therefore, the power transmission coil 102 is provided on the side surface 122.

  As described above, in the electronic information board 1 according to the second embodiment, the mounting surface 121 becomes deeper toward the side surface 122 when the length of the electronic pen 300 and the inner dimension in the longitudinal direction of the pen tray 120 are equal or larger. The power transmission coil 102 is provided on the side surface 122 on the lower side of the pen tray 120 that is inclined. Therefore, when the user places the electronic pen 300 along the longitudinal direction of the pen tray 120 and places the pen end toward the side surface 122, the electronic pen 300 moves by tilting by its own weight, and the power receiving coil 38 of the electronic pen 300 The power transmission coil 102 of the pen tray 120 can be aligned. Therefore, when the electronic pen 300 is placed on the pen tray 120, alignment can be easily performed without increasing the number of other components, and power can be efficiently supplied.

  Further, the pen tray 120 of the second embodiment has a wider opening than the pen tray 110 of the first embodiment, and the user can easily place the electronic pen 300. Furthermore, wherever the electronic pen 300 is placed in the longitudinal direction of the pen tray 120, the electronic pen 300 slides on the slope of the pen tray 120 and fits deep into the bottom, and the power receiving coil 38 of the electronic pen 300 and the power transmitting coil 102 of the pen tray 120. It can be aligned. Therefore, when placing the electronic pen 300 on the pen tray 120, the user does not have to worry about the placement position.

Third Embodiment
In the electronic information board of the second embodiment, the placement surface of the pen tray is inclined, and the power transmission coil is provided on the side surface on the lower side of the inclination. On the other hand, in the electronic information board of the present embodiment, the placement surface of the pen tray is inclined from the center toward both end portions in the longitudinal direction, and the power transmission coils are provided on the side surfaces of the both end portions.

  The entire configuration of the electronic information board, the hardware configuration, the functional configuration, and the configuration of the electronic pen are the same as in the first embodiment (see FIGS. 1 to 5).

  Furthermore, in the electronic pen 300 of the present embodiment, the center of gravity C is provided at a predetermined distance from the center in the longitudinal direction (longitudinal direction) toward the end of the pen that is the end. That is, the electronic pen 300 is provided with the center of gravity C at a position moved from the center in the longitudinal direction in the direction in which the power receiving coil 38 is provided. FIG. 8 is an explanatory view of the center of gravity of the electronic pen. The internal configuration is the same as that of the first embodiment as described above (see FIG. 5).

As shown in FIG. 8, (the length of the electronic pen 300 is to L _0, L _0/2 position) the electronic pen 300 in the longitudinal direction of the center gravity center, the distance x position shifted toward the pen Ass C Is provided. That is, in FIG. 8, the distance from the center of the electronic pen 300 to the center of gravity C is x.

  Next, the details of the pen tray 130 of the present embodiment will be described. FIG. 9 is a view showing a configuration example of a pen tray of the third embodiment and the periphery thereof.

  The pen tray 130 is attached to the lower part of the display 201 of the main body 200 of the electronic information board 1 (see FIG. 1). As shown in FIG. 9, the pen tray 130 includes mounting surfaces 131 a and 131 b, side surfaces 132, 133, 134, and 135, and power transmission coils 102 and 103.

  The placement surfaces 131 a and 131 b are bottom surfaces of the pen tray 130 on which the electronic pen 300 is placed, and are an example of a placement unit. The mounting surfaces 131a and 131b are respectively inclined so as to be deeper toward the both end portions in the longitudinal direction. In the present embodiment, the mounting surface 131a is inclined to be deeper from the center toward the side surface 133, and the mounting surface 131b is inclined to be deeper from the center to the side surface 132. Therefore, the electronic pen 300 is placed with the power receiving coil 38 directed to the side surface 132 or the side surface 133, and moves on the mounting surface 131a or 131b inclined by its own weight. It is configured to be in contact with or close to the inner wall of 132 or 133.

The side surfaces 132 to 135 are side surfaces of the pen tray 130 connected to the sides of the mounting surfaces 131a and 131b and forming a container together with the mounting surfaces 131a and 131b. The side surfaces 132 to 135 form an opening of the pen tray 130 capable of storing the electronic pen 300. This opening, the longitudinal direction of the inner dimension _{L 3} of the pen tray 130 has become equal to or greater than the length _{L 0} of the electronic pen _{300 (L 3 ≧ L 0)} . The inner dimension _{W 3} in the transverse direction of the pen tray 130 has become equal to or greater than the thickness _{W 0} of the electronic pen _{300 (W 3 ≧ W 0)} .

Here, the following equation (1) is established between the dimension L _{3 of} the pen tray 130, the length L ₀ of the electronic pen 300, and the center of gravity position x.
_{L 0/2 + x> L} 3/2 ... formula (1)

  As shown in the equation (1), regardless of the position of the opening of the pen tray 130, the pen tip 33 and the center of gravity C are located on the opposite side across the center of the pen tray 130. Therefore, when the electronic pen 300 is placed on the pen tray 130, the electronic pen 300 moves toward the end of the pen on which the power receiving coil 38 is provided, and the end of the pen contacts the side surface 132 or the side surface 133.

  The power transmission coils 102 and 103 are provided on the side surfaces 132 and 133 at both ends of the mounting surfaces 131 a and 131 b located on the lower side of the inclination. In addition, when the electronic pen 300 is placed, the power transmission coils 102 and 103 are provided in a direction along the power reception coil 38 of the electronic pen 300, that is, parallel to the power reception coil 38. Power transmission coil 102 passes the alternating current received from inverter 230 to generate magnetic flux in the periphery.

  In the present embodiment, the electronic pen 300 is placed and stored so that the longitudinal direction of the electronic pen 300 is the longitudinal direction of the pen tray 130. In addition, when the electronic pen 300 is placed either in the direction in which the pen tip 33 faces the side surface 113 or in the direction in which the pen tip 33 faces the side surface 112, the pen end with the center C is inclined The mounting surfaces 131 a and 131 b are moved toward the side surface 133 or the side surface 132. Therefore, the power transmission coils 102 and 103 are provided on the side surface 133 and the side surface 132.

  As described above, in the electronic information board 1 according to the third embodiment, the mounting surfaces 131a and 131b face the side surfaces 133 and 132 when the length of the electronic pen 300 and the inner dimension in the longitudinal direction of the pen tray 130 are equal or larger. The power transmission coils 102 and 103 are provided on the side surfaces 133 and 132 on the lower side of the pen tray 130, respectively. Therefore, when the user places the electronic pen 300 along the longitudinal direction of the pen tray 130, the electronic pen 300 moves its inclination by its own weight and the center of gravity C, and the receiving coil of the electronic pen 300 regardless of the orientation of the electronic pen 300. 38 and the power transmission coils 102 and 103 of the pen tray 130 can be aligned. Therefore, when the electronic pen 300 is placed on the pen tray 130, alignment can be easily performed without increasing the number of other components, and power can be efficiently supplied.

  In the pen tray 130 according to the third embodiment, the electronic pen 300 slides on the slope of the pen tray 130 so that the pen tray 130 can be stored deep in the bottom regardless of where the electronic pen 300 is placed in the longitudinal direction of the pen tray 130. The coils 38 and the power transmission coils 102 and 103 of the pen tray 130 can be aligned. Furthermore, regardless of the orientation of the electronic pen 300 with respect to the pen tray 130, the pen rear end with the center of gravity C slides toward either end of the pen tray 130, so the receiving coil 38 of the electronic pen 300 and the pen tray The 130 power transmission coils 102 and 103 can be aligned. Therefore, when the user places the electronic pen 300 on the pen tray 130, there is no need to worry about the orientation of the electronic pen 300.

Fourth Embodiment
In the electronic information board of the second embodiment, the placement surface of the pen tray is inclined, and the power transmission coil is provided on the side surface on the lower side of the inclination. The electronic information board of the present embodiment further includes a transport mechanism for transporting the electronic pen on the mounting surface.

  The entire configuration of the electronic information board, the hardware configuration, the functional configuration, and the configuration of the electronic pen are the same as in the first embodiment (see FIGS. 1 to 5).

  The details of the pen tray 140 of the present embodiment will be described below. FIG. 10 is a view showing a configuration example of a pen tray of the fourth embodiment and the periphery thereof. FIG. 11 is a cross-sectional view of the pen tray. FIG. 11 is a cross-sectional view of the pen tray 140 cut along the XY plane, with reference to the coordinate system shown in FIG.

  The pen tray 140 is attached to the lower part of the display 201 of the main body 200 of the electronic information board 1 (see FIG. 1). As shown in FIGS. 10 and 11, the pen tray 140 includes a placement surface 141, side surfaces 122, 123, 124, and 125, and a power transmission coil 102. Here, since the side surfaces 122 to 125 and the power transmission coil 102 are the same as those in the second embodiment, the description will be omitted.

  The placement surface 141 is a bottom surface of the pen tray 140 on which the electronic pen 300 is placed, and is an example of a placement unit. The mounting surface 141 is inclined to be deep along the longitudinal direction. In the present embodiment, the mounting surface 141 is inclined such that the mounting surface 141 is deepened from one end connected to the side surface 123 toward the other end connected to the side surface 122.

  The mounting surface 141 has a transport mechanism that transports the electronic pen 300 toward the side surface 122 provided with the power transmission coil 102 when the electronic pen 300 is mounted on the mounting surface 141. The transport mechanism of the present embodiment is a plurality of rollers 146 provided on the placement surface 141 at predetermined intervals and rotating in the direction in which the electronic pen 300 is transported.

  Referring to the coordinate system shown in FIGS. 10 and 11, the roller 146 rotates at least in the direction of arrow R in FIG. 11 about the Z axis which is the lateral direction of the mounting surface 141 as an axis.

  Therefore, when the electronic pen 300 is placed on the roller 146 with the receiving coil 38 facing the side surface 122, the electronic pen 300 is inclined by the inclination of the mounting surface 141 and the rotation of the roller 146 according to the gravity applied to the electronic pen 300. The mounting surface 141 is moved toward the side surface 122 so as to be in contact with the end of the pen and the inner wall of the side surface 122 of the pen tray 140. In the present embodiment, six rollers 146 are provided, but the number of installation and the interval between the rollers are arbitrary.

  As described above, in the electronic information board 1 according to the fourth embodiment, the mounting surface 141 provided with the roller 146 has the side surface 122 with the length of the electronic pen 300 and the inner dimension in the longitudinal direction of the pen tray 140 being equal or longer. The power transmission coil 102 is provided on the inclined lower side surface 122 of the pen tray 140. Therefore, when the user aligns the electronic pen 300 along the longitudinal direction of the pen tray 140 and places the pen end toward the side surface 122, the electronic pen 300 is moved by gravity and by the roller 146, and power reception of the electronic pen 300 is performed. The coil 38 and the power transmission coil 102 of the pen tray 140 can be aligned. Therefore, when mounting the electronic pen 300 on the pen tray 140, alignment can be easily performed without increasing the number of other components, and power can be efficiently supplied.

  Further, as compared with the pen tray 120 of the second embodiment, the electronic pen 300 slips more easily on the inclined mounting surface 141 of the pen tray 140 by providing the roller 146, and the electronic pen 300 is mounted on the pen tray 140. It can prevent that it can not slide off by friction with 141. As a result, even when the user places the electronic pen 300 on the pen tray 140 carelessly, the electronic pen 300 moves toward the deeper end of the placement surface 141 of the pen tray 140, and the power receiving coil 38 of the electronic pen 300 The power transmission coil 102 of the pen tray 140 can be aligned.

Fifth Embodiment
In the electronic information board of the fourth embodiment, the placement surface of the pen tray is inclined, and a power transmission coil is provided on the side surface on the lower side, and a roller is provided as a conveyance mechanism for conveying the electronic pen on the placement surface. It had become. The electronic information board of the present embodiment further has a configuration in which a belt is attached to a roller.

  The entire configuration of the electronic information board, the hardware configuration, the functional configuration, and the configuration of the electronic pen are the same as in the first embodiment (see FIGS. 1 to 5).

  Hereinafter, the details of the pen tray 150 of the present embodiment will be described. FIG. 12 is a view showing a configuration example of a pen tray of the fifth embodiment and the periphery thereof. FIG. 13 is a cross-sectional view of the pen tray. FIG. 13 is a cross-sectional view of the pen tray 150 cut along the XY plane, with reference to the coordinate system shown in FIG.

  The pen tray 150 is attached to the lower part of the display 201 of the main body 200 of the electronic information board 1 (see FIG. 1). As shown in FIGS. 12 and 13, the pen tray 150 includes a placement surface 151, side surfaces 122, 123, 124, and 125, and a power transmission coil 102. Here, since the side surfaces 122 to 125 and the power transmission coil 102 are the same as those in the second embodiment, the description will be omitted.

  The placement surface 151 is a bottom surface of the pen tray 150 on which the electronic pen 300 is placed, and is an example of a placement unit. The mounting surface 151 is inclined to be deep along the longitudinal direction. In the present embodiment, the mounting surface 151 is inclined such that the mounting surface 151 is deepened from one end connected to the side surface 123 toward the other end connected to the side surface 122.

  The mounting surface 151 has a transport mechanism for transporting the electronic pen 300 toward the side surface 122 provided with the power transmission coil 102 when the electronic pen 300 is mounted on the mounting surface 151. The transport mechanism of the present embodiment includes a plurality of rollers 146 provided on the placement surface 151 at predetermined intervals and rotating in the direction of transporting the electronic pen 300, and a belt 157 mounted across the plurality of rollers 146. is there.

  Referring to the coordinate system shown in FIGS. 12 and 13, the roller 146 rotates at least in the direction of arrow R in FIG. 13 about the Z axis which is the lateral direction of the mounting surface 151 as an axis. The belt 157 follows the rotation of the roller 146 in the R direction and rotates in the arrow B direction (clockwise as viewed from FIG. 13).

  Therefore, when the electronic pen 300 is placed on the belt 157 mounted on the roller 146 with the power receiving coil 38 facing the side surface 122, the inclination of the mounting surface 151 and the roller 146 follow the gravity applied to the electronic pen 300. The rotation of the belt 157 causes the inclined mounting surface 151 to move toward the side surface 122 so as to contact the pen end and the inner wall of the side surface 122 of the pen tray 150. In the present embodiment, six rollers 146 are provided, but the number of installation and the interval between the rollers are arbitrary.

  As described above, in the electronic information board 1 of the fifth embodiment, the mounting surface 151 on which the roller 146 and the belt 157 are provided with the length of the electronic pen 300 and the inner size in the longitudinal direction of the pen tray 150 being equal or longer. Is inclined toward the side surface 122 and the power transmission coil 102 is provided on the inclined lower side surface 122 of the pen tray 150. Therefore, if the user aligns the electronic pen 300 along the longitudinal direction of the pen tray 150 and places the end of the pen toward the side surface 122, the electronic pen 300 is moved by gravity, inclined by the roller 146 and the belt 157, and the electronic pen Alignment of the receiving coil 38 of 300 and the transmitting coil 102 of the pen tray 150 can be performed. Therefore, when the electronic pen 300 is placed on the pen tray 150, alignment can be easily performed without increasing the number of other components, and power can be efficiently supplied.

  Further, in comparison with the pen tray 120 of the second embodiment, the electronic pen 300 slips more easily on the inclined mounting surface 151 of the pen tray 150 by the provision of the roller 146 and the belt 157, and the electronic pen 300 is of the pen tray 150. It can prevent that it can not slide off due to the friction with the mounting surface 151. Further, in the configuration of the pen tray 140 according to the fourth embodiment, the electronic pen 300 can be stopped between the roller 146 and the roller 146 and can not move to the deeper end of the placement surface 141 of the pen tray 140. There is also sex. On the other hand, in the configuration of the pen tray 150 according to the present embodiment, since the belt 157 is mounted across the plurality of rollers 146, the electronic pen 300 is stopped between the rollers 146 and the rollers 146. There is no As a result, even when the user casually places the electronic pen 300 on the pen tray 150, the electronic pen 300 moves toward the deeper end of the placement surface 151 of the pen tray 150, and the power receiving coil 38 of the electronic pen 300 The power transmission coil 102 of the pen tray 150 can be aligned.

Sixth Embodiment
In the electronic information board of the fifth embodiment, a roller and a belt are provided on the inclined mounting surface of the pen tray as a transport mechanism for transporting the electronic pen. The electronic information board of the present embodiment is configured to include a conveyance control unit that controls a conveyance mechanism including a roller and a belt.

  The entire configuration of the electronic information board, the hardware configuration, and the configuration of the electronic pen are the same as in the first embodiment (see FIGS. 1 to 3 and 5).

  First, the details of the pen tray 160 of the present embodiment will be described. FIG. 14 is a view showing a configuration example of a pen tray of the sixth embodiment and the periphery thereof. FIG. 15 is a cross-sectional view of a pen tray. FIG. 14 is a cross-sectional view of the pen tray 160 cut along the XY plane, with reference to the coordinate system shown in FIG.

  The pen tray 160 is attached to the lower part of the display 201 of the main body 200 of the electronic information board 1 (see FIG. 1). As shown in FIGS. 14 and 15, the pen tray 160 includes a placement surface 161, side surfaces 162, 123, 124, 125, a power transmission coil 102, a pen placement detection unit 168, and a pen contact detection unit 169. Have. Here, since the side surfaces 123 to 125 and the power transmission coil 102 are the same as those in the second embodiment, the description will be omitted.

  Similar to the side surface 122 of the second embodiment, the side surface 162 is a side surface of the pen tray 160 which is connected to the side of the mounting surface 161 and which forms a container together with the mounting surface 161. Have.

  The pen contact detection unit 169 is provided on the inner wall side of the side surface 162, that is, on the surface with which the electronic pen 300 contacts. Then, as described above, the pen contact detection unit 169 detects that the electronic pen 300 moves on the belt 157 and contacts the side surface 162.

  The placement surface 161 is a bottom surface of the pen tray 150 on which the electronic pen 300 is placed, as in the fifth embodiment, and has a plurality of rollers 146 and a belt 157, and a pen placement detection unit 168. Is equipped.

  The pen placement detection unit 168 is provided on the placement surface 161 close to the side surface 123, and detects that the electronic pen 300 has been placed on the belt 157.

  Next, the functional configuration of the electronic information board 1 of the present embodiment will be described. FIG. 16 is a block diagram showing a functional configuration of the electronic information board of the sixth embodiment. As shown in FIG. 16, the electronic information board 1 of this embodiment includes an image acquisition unit 223, a layout management unit 229, an event processing unit 228, a drawing generation unit 224, an application image generation unit 225, and an image synthesis. It is mainly configured to include a unit 226, a display control unit 227, and a conveyance control unit 291. Here, the functions and configurations of the image acquisition unit 223, the layout management unit 229, the event processing unit 228, the drawing generation unit 224, the application image generation unit 225, the image combining unit 226, and the display control unit 227 are the same as in the first embodiment. Is the same as

  Further, in addition to the pen tray 120 of the second embodiment, the pen tray 160 of the present embodiment includes a transport mechanism 167 including the roller 146 and the belt 157, a pen placement detection unit 168, and a pen contact detection unit 169. There is.

  The transport mechanism 167 includes the roller 146 and the belt 157 of the fifth embodiment, and transports the electronic pen 300 in the direction of the power transmission coil 102.

  The pen placement detection unit 168 detects that the electronic pen 300 is placed on the pen tray 160. Specifically, for example, a proximity illumination sensor, a touch sensor, a weight sensor, and the like can be given. The pen placement detection unit 168 is an example of a placement detection unit.

  The pen contact detection unit 169 detects that the electronic pen 300 is in contact with the side surface 162 provided with the power transmission coil 102. Specifically, for example, a proximity illuminance sensor, a touch sensor, and the like can be given. The pen contact detection unit 169 is an example of a contact detection unit.

  The conveyance control unit 291 controls the driving of the conveyance mechanism 167 (the roller 146 and the belt 157) based on the detection results of the pen placement detection unit 168 and the pen contact detection unit 169. Specifically, the conveyance control unit 291 rotates the belt 146 across the roller 146 in the arrow B direction by driving the roller 146 in the R direction shown in FIG. 15 to drive the conveyance mechanism 167. In the present embodiment, when the pen placement detection unit 168 detects the electronic pen 300, the conveyance control unit 291 controls the driving of the conveyance mechanism 167 to move the electronic pen 300 toward the power transmission coil 102. I do. Further, when the pen placement detection unit 168 no longer detects the electronic pen 300, or when the pen contact detection unit 169 detects that the electronic pen 300 is in contact with the side surface 162, the conveyance control unit 291 performs the conveyance mechanism. Control to stop the driving of 167 is performed.

  Next, the flow of the transport process of the electronic pen 300 will be described. FIG. 17 is a flowchart showing the flow of the transport process of the electronic pen in the electronic information board of the present embodiment.

  First, the transport control unit 291 determines whether or not the pen placement detection unit 168 has detected that the electronic pen 300 has been placed on the pen tray 160 (step S101), and if not detected (step S101: No), wait for detection.

  On the other hand, when it is detected that the electronic pen 300 has been placed (step S101: Yes), the conveyance control unit 291 starts driving the conveyance mechanism 167 (the roller 146 and the belt 157) (step S102). Thereby, the transport mechanism 167 rotates the roller 146 and the belt 157 so that the electronic pen 300 moves in the direction of the power transmission coil 102, and the electronic pen 300 is transported.

  Then, the conveyance control unit 291 determines whether the pen placement detection unit 168 detects that the electronic pen 300 is placed on the pen tray 160 (step S103), and if not detected (step S103) S103: No), the process proceeds to step S105. The case where this detection is not performed is, for example, the case where the electronic pen 300 placed by the user is taken out.

  On the other hand, if it is detected (step S103: Yes), the transport control unit 291 determines whether the pen contact detection unit 169 has detected that the electronic pen 300 has touched the side surface 162 (step S104), If not detected (step S104: No), the process returns to step S103 to repeat the process.

  On the other hand, when it is detected that the electronic pen 300 contacts (step S104: Yes), and when the placement of the electronic pen 300 is not detected at step S103 (step S103: No), the conveyance control unit 291 The driving of the mechanism 167 is stopped, and the conveyance of the electronic pen 300 is stopped (step S105). When the electronic pen 300 contacts the side surface 162 and the conveyance is stopped, the electronic pen 300 is then powered.

  As described above, in the electronic information board 1 according to the sixth embodiment, the roller 146, the belt 157, and the pen placement detection unit 168 have the length equal to or longer than the length of the electronic pen 300 and the inner size in the longitudinal direction of the pen tray 160. The provided mounting surface 161 is inclined toward the side surface 162 and the power transmission coil 102 is provided on the inclined lower side surface 162 of the pen tray 160. Therefore, when the user places the electronic pen 300 along the longitudinal direction of the pen tray 160 and places the pen end toward the side surface 162, the placement is detected and the roller 146 and the belt 157 are driven to drive the electronic pen 300. It is conveyed, and the alignment of the receiving coil 38 of the electronic pen 300 and the transmitting coil 102 of the pen tray 160 can be performed. Therefore, when the electronic pen 300 is placed on the pen tray 160, alignment can be easily performed, and power can be efficiently supplied.

  Further, in the configuration of the pen tray 150 according to the fifth embodiment, when the inclination angle of the mounting surface 151 is small, the component force in the mounting surface 151 direction based on the gravity applied to the electronic pen 300 can not be sufficiently obtained. May not move to the deep end of the mounting surface 151 of the pen tray 150. On the other hand, in the configuration of the pen tray 160 according to the present embodiment, the electronic pen 300 is reliably moved in the direction of the power transmission coil 102 in order to drive the transport mechanism 167 to transport the electronic pen 300. As a result, even when the user casually places the electronic pen 300 on the pen tray 160, the electronic pen 300 moves toward the deeper end of the placement surface 161 of the pen tray 160, and the power receiving coil 38 of the electronic pen 300 The power transmission coil 102 of the pen tray 160 can be aligned.

Seventh Embodiment
The electronic information board of the first embodiment has a configuration in which power transmission coils are provided on the side surfaces of both ends of the pen tray. On the other hand, in the electronic information board of the present embodiment, a plurality of electronic pens can be placed on the pen tray. In the present embodiment, a configuration in which three electronic pens are mounted will be described, but two, four or more electronic pens may be mounted.

  The entire configuration of the electronic information board, the hardware configuration, and the configuration of the electronic pen are the same as in the first embodiment (see FIGS. 1 to 3 and 5).

  First, the functional configuration of the electronic information board 1 of the present embodiment will be described. FIG. 18 is a block diagram showing a functional configuration of the electronic information board of the seventh embodiment. As shown in FIG. 18, the electronic information board 1 of the present embodiment is configured to include three inverters 230a, 230b, and 230c. The configuration other than the inverter is the same as that of the first embodiment, and hence the description is omitted.

  Next, the details of the pen tray 170 of the present embodiment will be described. FIG. 19 is a view showing a configuration example of a pen tray of the seventh embodiment and the periphery thereof. FIG. 20 is a cross-sectional view of the pen tray. FIG. 20 is a cross-sectional view of the pen tray 170 cut along the YZ plane, with reference to the coordinate system shown in FIG.

  The pen tray 170 is a tray for storing three electronic pens 300, and is attached to the lower part of the display 201 of the main body 200 of the electronic information board 1 (see FIG. 1). As shown in FIG. 19, the pen tray 170 includes a placement surface 171, side surfaces 172, 173, 124, and 125, and power transmission coils 102a, 102b, 102c, 103a, 103b, and 103c.

  The placement surface 171 is a bottom surface of the pen tray 170 on which the three electronic pens 300 are placed, and is an example of a placement unit. As shown in FIG. 20, the placement surface 171 has a guide member 174 that guides each electronic pen 300 to a predetermined placement position when the three electronic pens 300 are stored. The mounting surface 171 has three curved surfaces whose cross sections are semicircular in accordance with the external shape of the electronic pen 300.

  The guide members 174 are provided between the electronic pens 300 as shown in FIG. 20 so as to be placed straight in a row direction (Z-axis direction) of the electronic pen 300 as shown in FIG.

The side surfaces 172, 173, 124, and 125 are side surfaces of the pen tray 170 which is connected to each side of the mounting surface 171 and which forms a container together with the mounting surface 171. The side surfaces 172, 173, 124, 125 form an opening of the pen tray 170 capable of storing the electronic pen 300. This opening, the longitudinal direction of the inner dimension _{L 7} of pen tray 170 is equal to the length _{L 0} of the electronic pen _{300 (L 7 ≒ L 0)} , the electronic pen 300 pen tray 170 is accommodated, pen ass Are in contact with or close to the side wall 172 of the pen tray 170 or the inner wall of the side wall 173. However, the inner dimension L ₇ in the longitudinal direction of the pen tray 170 is never smaller than the length L ₀ of the electronic pen 300. The inner dimension _{W 7} in the transverse direction of the pen tray 170, a thickness _{W 0} in the accommodating number of the electronic pen 300 over the value equal to or greater than (where three are) _{(W 7} ≧ 3W ₀₎ ing.

  When the three electronic pens 300 are placed on the mounting surface 171, the power transmission coils 102a, 102b, 102c, 103a, 103c, 103c contact the end portions of the respective electronic pens 300 on which the power receiving coils 38 are provided. It is provided in the side 172, 173 of the side, respectively. The power transmission coils 102 a to 102 c and 103 a to 103 c are provided in a direction along the power reception coil 38 of each electronic pen 300 mounted on the mounting surface 171, that is, parallel to the power reception coil 38. . Power transmission coils 102a to 102c and 103a to 103c pass the alternating current received from inverters 230a to 230c to generate magnetic flux in the periphery.

  In the present embodiment, the electronic pen 300 is placed and stored so that the longitudinal direction of the electronic pen 300 is the longitudinal direction (X-axis direction) of the pen tray 170. Further, the electronic pen 300 is placed in either the direction in which the pen tip 33 faces the side surface 173 or the direction in which the pen tip 33 faces the side surface 172. Therefore, the power transmission coils 102 a to 102 c and 103 a to 103 c are provided on the side surfaces 172 and 173 respectively connected to both ends of the mounting surface 171 in the longitudinal direction.

  Thus, in the electronic information board 1 of the seventh embodiment, the length of the electronic pen 300 and the inner size in the longitudinal direction of the pen tray 170 are equal, and the power transmission coil 102 a is mounted on the side surfaces 172 and 173 at both ends of the pen tray 170. To 102 c and 103 a to 103 c are provided. Therefore, if the user places three electronic pens 300 along the longitudinal direction of the pen tray 170, the receiving coil 38 of the electronic pen 300 and the power transmitting coils 102a to 102c of the pen tray 170, regardless of the orientation of the electronic pen 300. Alignment of 103a-103c is possible. Therefore, when mounting the electronic pen 300 on the pen tray 170, alignment can be easily performed without increasing the number of other components, and power can be efficiently supplied. Further, the pen tray 170 of the present embodiment can simultaneously supply power to the plurality of electronic pens 300.

Eighth Embodiment
In the electronic information board of the first embodiment, the length of the pen tray in the longitudinal direction is equal to the length of the electronic pen, and power transmission coils are provided on the side surfaces of both ends of the pen tray. On the other hand, in the electronic information board of the present embodiment, magnetism is obtained by supplying current to the power transmission coil of the pen tray and the power reception coil of the electronic pen to generate an attractive force between the coils.

  First, Ampere's law will be described. FIG. 21 is an explanatory diagram regarding Ampere's law. Simply stated, Ampere's law is a law in which a magnetic field is generated when current flows in a wire.

  As shown in FIG. 21A, when the thumb of the right hand is directed to the direction of the current A1 flowing through the lead wire, the direction in which the magnetic field M1 is generated is the direction in which the other four fingers are directed. If this law is applied to a coil, as shown in FIG. 21 (b), a magnetic field M2 is generated when a direct current A2 is applied to the coil wound with a wire, and magnetic poles (S and N poles) can be provided. . In FIG. 21 (b), when the current flows in the direction of the four fingers other than the thumb of the right hand, the north pole in the thumb direction, and the opposite, becomes the south pole. In the present embodiment, alignment of the electronic pen is performed by utilizing the property that the magnetic pole is generated by flowing a direct current through the coil.

  The entire configuration of the electronic information board, the hardware configuration, and the configuration of the electronic pen are the same as in the first embodiment (see FIGS. 1 to 3 and 5).

  Next, the details of the pen tray 180 of the present embodiment will be described. FIG. 22 is a view showing a configuration example of a pen tray of the eighth embodiment and the periphery thereof.

  The pen tray 180 is attached to the lower part of the display 201 of the main body 200 of the electronic information board 1 (see FIG. 1). As shown in FIG. 22, the pen tray 180 includes a mounting surface 181, side surfaces 182, 183, 184, and 185, a power transmission coil 102, a pen placement detection unit 188, and a pen contact detection unit 189. There is.

  The placement surface 181 is a bottom surface of the pen tray 180 on which the electronic pen 300 is placed, and includes a pen placement detection unit 188. The pen placement detection unit 188 is provided, for example, near the center of the placement surface 181, and detects that the electronic pen 300 has been placed on the placement surface 181. Details will be described later.

The side surfaces 182 to 185 are side surfaces of the pen tray 180 connected to the sides of the mounting surface 181 and forming a container with the mounting surface 181. The side surfaces 182 to 185 form an opening of the pen tray 180 that can accommodate the electronic pen 300. In this opening, the longitudinal inner dimension L ₈ of the pen tray 180 is equal to or longer than the length L ₀ of the electronic pen 300 (L ₈ LL ₀ ). The inner dimension _{W 8} in the transverse direction of the pen tray 180 is in the thickness _{W 0} and equal to or more electronic pen 300 _{(W 8} ≧ _{W 0).}

  Further, the side surface 182 is provided with a pen contact detection unit 189. The pen contact detection unit 189 is provided on the inner wall side of the side surface 182, that is, the surface with which the pen end of the electronic pen 300 contacts, and detects that the electronic pen 300 contacts the side surface 182. Details will be described later.

  When the electronic pen 300 is placed on the placement surface 181, the power transmission coil 102 is provided on the side surface 182 on which the end (pen bottom) on which the power reception coil 38 of the electronic pen 300 is provided is in contact. In addition, the power transmission coil 102 is provided in parallel to the power reception coil 38 in the direction along the power reception coil 38 of the electronic pen 300 mounted on the mounting surface 181. Power transmission coil 102 passes the alternating current received from inverter 230 to generate magnetic flux in the periphery.

  Next, the functional configuration of the electronic information board 1 of the present embodiment will be described. FIG. 23 is a block diagram showing a functional configuration of the electronic information board of the eighth embodiment. As shown in FIG. 23, the electronic information board 1 of the present embodiment includes an image acquisition unit 223, a layout management unit 229, an event processing unit 228, a drawing generation unit 224, an application image generation unit 225, and an image synthesis. The configuration is mainly provided with a unit 226, a display control unit 227, a current control unit 292, and a transmission / reception unit 293. Here, the functions and configurations of the image acquisition unit 223, the layout management unit 229, the event processing unit 228, the drawing generation unit 224, the application image generation unit 225, the image combining unit 226, and the display control unit 227 are the same as in the first embodiment. Is the same as

  Further, the pen tray 180 of the present embodiment includes a pen placement detection unit 188, a pen contact detection unit 189, a transmission / reception unit 186, and a current control unit 187.

  The pen placement detection unit 188 detects that the electronic pen 300 has been placed on the pen tray 180, and specific examples thereof include a push switch. That is, when the electronic pen 300 is placed on the placement surface 181 and a force is exerted, the push button is pressed. In addition, the pen placement detection unit 188 has a function of detecting the weight of the placed object, in this case, the electronic pen 300. The pen placement detection unit 188 is an example of a placement detection unit.

  The pen contact detection unit 189 detects that the electronic pen 300 is in contact with the side surface 182 provided with the power transmission coil 102. Specifically, for example, a push switch or the like may be mentioned as described above. That is, when the receiving coil 38 of the electronic pen 300 and the transmitting coil 102 of the pen tray 180 have magnetism due to direct current, attraction is generated, and when they are attracted to each other, the electronic pen 300 moves in the arrow F direction, and the receiving coil 38 and the pen tray The 180 transmission coils 102 approach. Then, the pen end of the electronic pen 300 contacts the pen tray 180, and the push switch is pressed. The pen contact detection unit 189 is an example of a contact detection unit.

  The pen contact detection unit 189 has a function of a magnetic sensor, and has a function of notifying that the contact between the power receiving coil 38 and the power transmitting coil 102 (see FIG. 23) can not be detected due to an external factor. The notification method includes alarm notification and the like. Thus, the sense of distance between the power transmission coil 102 and the power reception coil 38 can be determined by the strength of the magnetic force emitted by the electronic pen 300, and the user can be notified that charging has not been performed.

  The current control unit 292 controls the current supplied to the power transmission coil 102 provided in the pen tray 180. Specifically, when the pen placement detecting unit 188 detects the electronic pen 300, the current control unit 292 causes a direct current to flow through the power transmission coil 102 to generate a magnetic force.

  Further, when the pen contact detection unit 189 detects that the electronic pen 300 is in contact with the side surface 182, the current control unit 292 causes an alternating current to flow through the power transmission coil 102. At this time, the current control unit 292 compares the weight detected by the pen placement detection unit 188 with the weight of the electronic pen 300 stored in advance, and determines that the electronic pen 300 is in the case where both have the same weight. Alternatively, an alternating current may be supplied to the power transmission coil 102. As a result, the power feeding operation can be performed only when an object having a specific weight (electronic pen 300) is placed on the pen tray 180, so that false detection can be prevented. The current control unit 292 is an example of a second current control unit.

  The transmitting and receiving unit 293 wirelessly transmits and receives signals to and from the electronic pen 300. When the pen placement detection unit 188 detects the electronic pen 300, the transmission / reception unit 293 transmits, to the electronic pen 300, an instruction signal indicating that a direct current is to be supplied to the power reception coil 38.

  In addition, when the pen contact detection unit 189 detects that the electronic pen 300 is in contact with the side surface 182, the transmission / reception unit 293 causes the electronic pen 300 to stop supplying the DC current flowing to the power receiving coil 38. Send to At this time, when it is determined from the weight by the current control unit 292 that the electronic pen 300 is used, the power supply start signal may be transmitted to the electronic pen 300. The transmission and reception unit 293 is an example of a second transmission and reception unit.

  The current control unit 187 controls the current supplied to the power receiving coil 38. Specifically, when the current control unit 187 receives an instruction signal, the current control unit 187 causes a direct current to flow through the power receiving coil 38 to generate a magnetic force. In addition, when the current control unit 187 receives the power supply start signal, the current control unit 187 stops the direct current flowing to the power receiving coil 38 to receive power. The current control unit 187 is an example of a first current control unit.

  The transmitting / receiving unit 186 wirelessly transmits / receives a signal to / from the pen tray 180. The transmission / reception unit 186 receives the instruction signal and the power supply start signal, and sends the signal to the current control unit 187. The transmission / reception unit 186 is an example of a first transmission / reception unit.

  Next, the flow of the power supply process of the electronic pen will be described. FIG. 24 is a flow chart showing a flow of power supply processing of the electronic pen in the electronic information board of the present embodiment.

  First, the current control unit 292 of the pen tray 180 determines whether the pen placement detection unit 188 has detected that the electronic pen 300 has been placed on the pen tray 180 (step S121). Step S121: No) It waits until it detects.

  On the other hand, when it is detected that the electronic pen 300 has been placed (step S121: Yes), the current control unit 292 applies a direct current to the power transmission coil 102 to generate a magnetic pole (step S122). The transmission / reception unit 293 wirelessly transmits an instruction signal (a trigger signal to start adjustment of the power feeding position) to supply a direct current to the power receiving coil 38 to the electronic pen 300 (step S123).

  When the transmitting and receiving unit 186 of the electronic pen 300 receives the instruction signal from the pen tray 180 (step S124), the current control unit 187 causes a direct current to flow to the receiving coil 38 to generate a magnetic pole (step S125).

  Then, as a direct current flows in the power transmission coil 102 and the power reception coil 38, magnetism is generated such that an attractive force is generated in both coils. The power transmission coil 102 and the power reception coil 38 approach each other by this attraction, and as a result, the end of the pen of the electronic pen 300 contacts the side surface 182 provided with the power transmission coil 102.

  Next, the current control unit 292 of the pen tray 180 determines whether or not the pen contact detection unit 189 has detected that the electronic pen 300 has come into contact with the side surface 182 of the pen tray 180 (step S126). (Step S126: No), the process returns to step S126 and is repeated.

  On the other hand, when it is detected that the electronic pen 300 contacts (step S126: Yes), the current control unit 292 applies an alternating current for supplying power to the power transmission coil 102 (step S127). The transmitting and receiving unit 293 wirelessly transmits a power supply start signal (trigger signal for starting power supply) to the power receiving coil 38 to stop the direct current to the electronic pen 300 (step S128).

  When the transmission / reception unit 186 of the electronic pen 300 receives the power supply start signal from the pen tray 180 (step S129), the current control unit 187 stops the direct current flowing to the power reception coil 38 (step S130) and performs power reception ( Step S131). Thus, power is supplied from the power transmission coil 102 to the power reception coil 38.

  As described above, in the electronic information board 1 of the eighth embodiment, the pen placement detection unit 188 is provided on the placement surface 181 with the length of the electronic pen 300 equal to or longer than the internal size in the longitudinal direction of the pen tray 180. The pen contact detection unit 189 is provided on the side surface 182. Then, the user places the electronic pen 300 along the longitudinal direction of the pen tray 180 with the end of the pen facing the side surface 182 and flows a direct current through the power transmission coil 102 and the power reception coil 38 to generate attraction by magnetism. The pen 300 contacts the side surface 182. Thereafter, power is supplied by supplying alternating current to the power transmission coil 102 and the power reception coil 38. Therefore, when the electronic pen 300 is placed on the pen tray 180, alignment can be easily performed, and power can be efficiently supplied.

  In this embodiment, the power transmission coil is provided on the side surface 182 connected to one end of the mounting surface 181 in the longitudinal direction, but in the same manner as in the first embodiment, It is good also as composition provided in each side 182 and 183 connected to both ends. In this case, the electronic pen 300 can be placed on the pen tray 180 without worrying about the orientation.

  In the present embodiment, power supply in the case of storing an electronic pen as an electronic device in a pen tray has been described, but it may be other than the electronic pen. That is, for example, when the electronic information board is equipped with a remote control, a laser pointer, etc., these electronic devices also require a power source, so a tray such as a tray is provided as in this embodiment. Power may be supplied wirelessly.

DESCRIPTION OF SYMBOLS 1 electronic information board 31 battery 32 power supply circuit 33 pen point 34 pressure sensor 35 signal processing circuit 36 signal transmission part 37 rectification circuit 38 receiving coil 102, 103 power transmission coil 110, 120, 130, 140, 150, 160, 170, 180 pen tray 111, 121, 131a, 131b, 141, 151, 161, 171, 181 Mounting surface 112, 113, 114, 115, 122, 123, 124, 125, 132, 133, 134, 135, 162, 172, 173, 182, 183, 184, 185 Side surface 146 Roller 157 Belt 167 Conveying mechanism 168, 188 Pen placement detection unit 169, 189 Pen contact detection unit 174 Guide member 186 Transmitter and receiver unit 187 Current control unit 200 Main body 201 Display 210 Touch panel 211a, 211b image input terminal 223 image acquisition unit 224 drawing generation unit 225 application image generation unit 226 image combination unit 227 display control unit 228 event processing unit 229 layout management unit 230, 230a, 230b, 230c inverter 291 transport control unit 292 current control Part 293 Transmitter / receiver 300 Electronic pen

Japanese Patent Application Publication No. 2014-500122

Claims (15)

A device storage container for storing an electronic device having a power receiving coil for wirelessly receiving power at an end portion, the device storage container comprising:
A placement unit on which the electronic device is placed;
A plurality of side surfaces connected to the placement portion and forming a container with the placement portion;
A power transmission coil provided in a direction along the power receiving coil of the electronic device placed on the side surface that the end of the electronic device contacts when the electronic device is placed on the placement unit;
Device storage container equipped with   The device storage container according to claim 1, wherein the power transmission coil is provided on each of side surfaces connected to both end portions in the longitudinal direction of the placement portion. The longitudinal length of the opening formed by the plurality of side surfaces is longer than the longitudinal length of the electronic device,
The placement portion is inclined along the longitudinal direction,
The device storage container according to claim 1, wherein the power transmission coil is provided on a side surface located on an inclined lower side of the placement unit. The electronic device is provided with a center of gravity at a predetermined distance from the longitudinal center to the end.
The placement portion is inclined from the center toward both longitudinal ends,
The device storage container according to claim 1, wherein the power transmission coils are respectively provided on side surfaces connected to both ends of the mounting portion at the lower side of the inclination.   The said mounting part is a conveyance mechanism which conveys the said electronic device toward the side in which the said power transmission coil was provided, when the said electronic device is mounted in the said mounting part. Equipment storage container.   The device storage container according to claim 5, wherein the transport mechanism includes a plurality of rollers provided in the placement unit at predetermined intervals and rotating in a direction in which the electronic device is transported.   The device storage container according to claim 6, wherein the transport mechanism further includes a belt attached to a plurality of the rollers. A placement detection unit that detects that the electronic device has been placed on the placement unit;
A contact detection unit that detects that the electronic device is in contact with the side surface provided with the power transmission coil;
When the electronic device is detected by the placement detector, driving of the transport mechanism is started to move the electronic device toward the power transmission coil, and the electronic device is detected by the placement detector. 6. The transport control unit according to claim 5, further comprising: a transport control unit that performs control to stop driving of the transport mechanism when there is no contact or when the contact detection unit detects that the electronic device is in contact with the side surface. The equipment storage container as described in any one of 7. The placement unit has a guide member that guides each of the electronic devices to a predetermined placement position when the plurality of electronic devices are stored.
The power transmission coil is in a direction along the power receiving coil of each of the electronic devices on the side surface that the end portion of each of the electronic devices contacts when the plurality of electronic devices are placed in the placement unit. The device storage container according to claim 1 provided in plurality. A power supply system including an electronic device and an apparatus storage container for storing the electronic device, the power supply system comprising:
The electronic device is
The end portion is provided with a power receiving coil for wireless power reception,
The device storage container is
A placement unit on which the electronic device is placed;
A plurality of side surfaces connected to the placement portion and forming a container with the placement portion;
A power transmission coil provided in a direction along the power receiving coil of the electronic device placed on the side surface that the end of the electronic device contacts when the electronic device is placed on the placement unit;
Power supply system provided with The electronic device is
A first current control unit that controls a current flowed to the power receiving coil;
And a first transmission / reception unit that transmits / receives a signal to / from the device storage container,
The device storage container is
A second current control unit configured to control a current flowing through the power transmission coil;
A second transmission / reception unit that transmits / receives a signal to / from the electronic device;
A placement detection unit that detects that the electronic device has been placed on the placement unit;
A contact detection unit that detects that the electronic device is in contact with the side surface provided with the power transmission coil;
The second current control unit generates a magnetic force by causing a direct current to flow through the power transmission coil when the electronic device is detected by the placement detection unit.
When the electronic device is detected by the placement detection unit, the second transmission / reception unit transmits, to the electronic device, an instruction signal indicating that a direct current is to be supplied to the power reception coil.
The first transmission / reception unit receives the instruction signal,
When the first current control unit receives the instruction signal, the first current control unit causes a direct current to flow through the power receiving coil to generate a magnetic force.
The second current control unit causes an alternating current to flow through the power transmission coil when the contact detection unit detects that the electronic device is in contact with the side surface,
The second transmission / reception unit sends a power supply start signal to the electronic device to stop the direct current flowing to the power receiving coil when the contact detection unit detects that the electronic device is in contact with the side surface. Send
The first transmission / reception unit receives the power supply start signal,
The power supply system according to claim 10, wherein the first current control unit stops the direct current flowing to the power receiving coil and causes the power to be received when the power supply start signal is received.   The feed system according to claim 11, wherein the power transmission coil is provided on each of the side surfaces connected to both end portions in the longitudinal direction of the mounting portion. The placement detection unit detects the weight of the electronic device,
When the second current control unit determines that the electronic device is the electronic device based on the weight detected by the placement detection unit and the weight of the electronic device stored in advance, an alternating current is supplied to the power transmission coil. ,
The feed system according to claim 11, wherein the second transmission / reception unit transmits the feed start signal to the electronic device when it is determined by the second current control unit that the electronic device is the electronic device.   The contact detection unit according to any one of claims 11 to 13, wherein the contact detection unit has a function of a magnetic sensor, and when the contact between the power reception coil and the power reception coil can not be detected due to an external factor, Power supply system described.   The power supply system according to any one of claims 10 to 14, wherein the electronic device is provided with a center of gravity at a position moved in a direction in which the power receiving coil is provided from a longitudinal center.

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