JP2014088092A - Holding device, and holding method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce size of a transmission part concerning a proximity type radio transmission system.SOLUTION: A holding device 1 comprises a power transmission unit 12 which transmits power in a proximity type radio transmission system between the holding device 1 and a portable terminal 6 loaded on a loading surface 22. In addition, the holding device 1 comprises a holding mechanism part 4 which moves the portable terminal 6 loaded on the loading surface 22 approximately in parallel with the loading surface 22. Since the holding mechanism part 4 moves the portable terminal 6 loaded on the loading surface 22, a position of the portable terminal 6 to a range in which the power transmission unit 12 can transmit power can be adjusted. Thus, since the power can be transmitted to the portable terminal 6 even when size of the power transmission unit 12 is smaller than size of the loading surface 22, the size of the power transmission unit 12 can be reduced. As a result, costs of the power transmission unit 12 can be reduced.

Description

  The present invention relates to a technique for holding a mobile terminal.

  2. Description of the Related Art Conventionally, a holding device that holds a portable portable terminal such as a mobile phone or a smartphone in a vehicle cabin or the like is known (for example, see Patent Document 1).

  A technique for charging a portable terminal held by such a holding device is also known. Generally, by connecting one end of a charging cable to a cigar socket of a vehicle and connecting the other end to a mobile terminal, the power of the battery of the vehicle is transmitted to the mobile terminal to charge the mobile terminal. .

JP 2001-103140 A JP 2010-200594 A

  Incidentally, in recent years, it has been studied to employ contactless power transmission as a technique for transmitting power to a portable terminal held by a holding device. The non-contact power transmission can transmit power without using a metal contact or a connector (for example, refer to Patent Document 2).

  Since contactless power transmission is a proximity wireless transmission system that transmits power in the near field, it is difficult to transmit power over a predetermined distance. Therefore, when a power transmission unit that is a transmission unit for power transmission is provided in the holding device and a power reception unit that is a transmission unit for power reception is provided in the portable terminal, the power is transferred when the positions of the power transmission unit and the power reception unit greatly deviate. Cannot be transmitted.

  In the case of a dedicated holding device for a specific type of portable terminal, the relative position between the holding device and the portable terminal can be made constant when the holding device holds the portable terminal. For this reason, if a power transmission unit is provided in the holding device in accordance with the position of the power receiving unit of the mobile terminal, it is possible to transmit power by contactless power transmission.

  On the other hand, in the case of a general-purpose holding device for various types of portable terminals, the relative position between the holding device and the portable terminal is not fixed. Further, the position of the power receiving unit in the mobile terminal is also different for each mobile terminal model. For this reason, in order to enable charging of various types of portable terminals using non-contact power transmission, it is possible to transmit power over the entire mounting surface on which the portable terminal is placed in the holding device. It is necessary to take measures such as

  However, when the size of the power transmission unit is increased so that power can be transmitted over the entire mounting surface, a large number of power transmission parts (such as power transmission coils) are required, and the cost is very high. Become.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a technique capable of reducing the size of a transmission unit according to a proximity wireless transmission method.

  In order to solve the above problems, the invention of claim 1 is a holding device for holding a mobile terminal, comprising: a mounting surface on which the mobile terminal is mounted; and the mobile terminal mounted on the mounting surface. A transmission unit that transmits at least one of power and a signal by a proximity wireless transmission method between the moving member that moves substantially parallel to the placement surface and the mobile terminal placed on the placement surface; It has.

  According to a second aspect of the present invention, in the holding device according to the first aspect, the moving member moves the portable terminal toward a central portion of the placement surface.

  Moreover, invention of Claim 3 is a holding | maintenance apparatus of Claim 1 or 2, The said moving member contains the press member which presses the four corners of the said portable terminal.

  According to a fourth aspect of the present invention, in the holding device according to the third aspect, the portable terminal is in contact with at least a part of the peripheral portion of the main surface of the portable terminal, and the portable terminal is orthogonal to the mounting surface. A restraining member for restraining the movement is further provided.

  According to a fifth aspect of the present invention, in the holding device according to the fourth aspect, the contact portion of the restraining member that contacts the portable terminal is inclined with respect to the main surface.

  Further, the invention of claim 6 is the holding device according to any one of claims 1 to 5, further comprising derivation means for deriving an evaluation value indicating the quality of the transmission state of the transmission unit, wherein the moving member is The mobile terminal is moved according to the evaluation value.

  Further, in the holding device according to claim 6, in the holding device according to claim 6, in the case where the transmission state does not become good even when the moving member moves the mobile terminal, an informing means for informing a user of information, Is further provided.

  According to an eighth aspect of the present invention, in the holding device according to any one of the first to seventh aspects, the proximity wireless transmission system includes contactless power transmission.

  According to a ninth aspect of the present invention, in the holding device according to any one of the first to seventh aspects, the proximity wireless transmission system includes short-range wireless communication.

  According to a tenth aspect of the present invention, in the holding device according to any one of the first to ninth aspects, the mounting surface is provided in the vehicle.

  The invention according to claim 11 is a holding method for holding the portable terminal on the placement surface, (a) moving the portable terminal placed on the placement surface substantially parallel to the placement surface. And (b) a step of transmitting at least one of electric power and signals between the portable terminal placed on the placement surface by a proximity wireless transmission method.

  The invention of claim 12 is the holding method according to claim 11, further comprising the step of (c) deriving an evaluation value indicating the quality of the transmission state of the transmission unit, and the step (a) includes: The mobile terminal is moved according to the evaluation value.

  According to invention of Claim 1 thru | or 12, in order to move the portable terminal mounted in the mounting surface, the position of the portable terminal with respect to a transmission part can be adjusted. For this reason, the size of the transmission unit can be reduced.

  In particular, according to the second aspect of the invention, since the portable terminal is moved toward the center of the placement surface, the size of the transmission unit can be effectively reduced.

  In particular, according to the invention of claim 3, since the four corners of the portable terminal are pressed, the portable terminal can be moved to substantially the center in both the front-rear direction and the left-right direction on the placement surface.

  In particular, according to the invention of claim 4, since the separation from the mounting surface of the portable terminal can be prevented, the transmission by the proximity type wireless transmission method can be effectively carried out.

  In particular, according to the invention of claim 5, since the abutting portion of the restraining member is inclined with respect to the main surface, the movement of mobile terminals of various sizes can be restrained.

  In particular, according to the invention of claim 6, the transmission state of the transmission unit can be improved by moving the portable terminal according to the evaluation value.

  In particular, according to the invention of claim 7, the user can grasp the transmission state of the transmission unit.

  In particular, according to the eighth aspect of the invention, the size of the transmission unit for contactless power transmission can be reduced.

  In particular, according to the ninth aspect of the invention, the size of the transmission unit for short-range wireless communication can be reduced.

  In particular, according to the tenth aspect of the present invention, at least one of electric power and a signal can be transmitted by the proximity wireless transmission method while holding the portable terminal in the vibrating vehicle.

FIG. 1 is a diagram showing an outline of an in-vehicle display system. FIG. 2 is a perspective view showing an appearance of the holding device. FIG. 3 is a perspective view showing an external appearance of the holding device. FIG. 4 is an exploded perspective view of the holding device according to the first embodiment. FIG. 5 is a perspective view showing the configuration of the holding mechanism section. FIG. 6 is a perspective view showing the configuration of the holding mechanism. FIG. 7 is a perspective view showing the relationship between the holding mechanism and the slide cover. FIG. 8 is a cross-sectional view of the slide cover. FIG. 9 is a diagram illustrating an electrical configuration of the holding device according to the first embodiment. FIG. 10 is a diagram illustrating an arrangement of power transmission coils inside the power transmission unit. FIG. 11 is a diagram illustrating a flow of an operation in which the holding device of the first embodiment holds the mobile terminal. FIG. 12 is a diagram illustrating a flow of an operation for opening the mobile terminal. FIG. 13 is a diagram illustrating an outline of the configuration of the holding device according to the second embodiment. FIG. 14 is a perspective view showing the configuration of the biaxial stage. FIG. 15 is a diagram illustrating an electrical configuration of the holding device according to the second embodiment. FIG. 16 is a diagram illustrating an example of the relationship between the position of the mobile terminal and the evaluation value. FIG. 17 is a diagram illustrating a flow of an operation in which the holding device of the second embodiment holds the mobile terminal. FIG. 18 is a diagram illustrating a method of moving the mobile terminal according to the evaluation value. FIG. 19 is an exploded perspective view of the holding device according to the third embodiment. FIG. 20 is a diagram illustrating an electrical configuration of the holding device according to the third embodiment. FIG. 21 is an exploded perspective view of the holding device according to the fourth embodiment. FIG. 22 is a diagram illustrating an electrical configuration of the holding device according to the fourth embodiment. FIG. 23 is a diagram illustrating a flow of an operation in which the holding device of the fourth embodiment holds the mobile terminal. FIG. 24 is a diagram illustrating an example of the protruding portion.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<1. First Embodiment>
<1-1. System overview>
FIG. 1 is a diagram showing an outline of an in-vehicle display system 10 including a holding device 1 according to the present embodiment. The in-vehicle display system 10 is mounted on a vehicle 9 such as an automobile. FIG. 1 shows the interior of a vehicle 9 in which a vehicle-mounted display system 10 is mounted.

  The in-vehicle display system 10 includes a display device 8 that displays various types of information and a holding device 1 that holds the mobile terminal 6. The display device 8 and the holding device 1 are electrically connected so that signals can be transmitted and received.

  The display device 8 includes a display such as a liquid crystal and displays various information. The display device 8 is provided at the left and right center of the dashboard 91 of the vehicle 9 so that the user can easily see the display device 8. The display device 8 includes a touch panel and can accept a user operation. The display device 8 includes, for example, a navigation function that guides a route to a destination, an audio function that outputs sound into the passenger compartment, and the like.

  The holding device 1 holds a portable terminal 6 that is a portable communication device such as a mobile phone or a smartphone. The holding device 1 is provided in the vicinity of the shift lever 93 in the center console 92 between the driver seat and the passenger seat of the vehicle 9.

  The holding device 1 includes a mounting surface 22 along a substantially horizontal direction for mounting the mobile terminal 6. When the mobile terminal 6 is placed on the placement surface 22 by the user, the holding device 1 holds the mobile terminal 6. This prevents the mobile terminal 6 from dropping from the placement surface 22 due to vibrations of the traveling vehicle 9 or the like.

  The holding device 1 can also charge the portable terminal 6 as long as the held portable terminal 6 includes a power receiving unit that complies with the standard for contactless power transmission. In the following description, it is assumed that the mobile terminal 6 includes such a power receiving unit. In general, the power receiving unit is disposed on the main surface opposite to the side on which the display unit of the mobile terminal 6 is disposed.

<1-2. Mechanical structure of holding device>
Next, the mechanical configuration of the holding device 1 will be described. 2 and 3 are perspective views showing the external appearance of the holding device 1. FIG. 2 shows a state where the portable terminal 6 is not held, and FIG. 3 shows a state where the portable terminal 6 is held.

  In the following description, the three-dimensional XYZ orthogonal coordinates shown in the figure are used as appropriate when indicating the direction and direction. The XYZ axes are fixed relative to the vehicle 9. Here, the X-axis direction is along the left-right direction of the vehicle 9, the Y-axis direction is along the front-rear direction of the vehicle 9, and the Z-axis direction is along the up-down direction (vertical direction). Hereinafter, for convenience, the X-axis direction is referred to as the left-right direction, the Y-axis direction is referred to as the front-rear direction, the Z-axis direction is referred to as the up-down direction, the + X side is the left side of the vehicle 9, the + Y side is the rear side of the vehicle 9, and the + Z side is the upper side. .

  As shown in FIGS. 2 and 3, the holding device 1 includes an exterior cover 21 so as to surround the periphery of the placement surface 22 on which the mobile terminal 6 is placed. The upper surface of the exterior cover 21 is higher than the position of the placement surface 22.

  For this reason, the mounting surface 22 is like a recess formed inside the exterior cover 21, and the mobile terminal 6 is accommodated in the mounting surface 22 inside the exterior cover 21. The portable terminal 6 is placed on the placement surface 22 with the main surface on which the display unit is disposed facing upward (+ Z side) (see FIG. 3). For this reason, the mounting surface 22 faces the main surface on the side where the power receiving unit of the mobile terminal 6 is disposed.

  The holding device 1 is not a dedicated device for a specific type of mobile terminal, but is a general-purpose device for various types of mobile terminals. For this reason, the size of the mounting surface 22 is larger than the size of the main surface of the average mobile terminal so that various types of mobile terminals can be mounted. Therefore, in a state where the mobile terminal 6 is simply placed on the placement surface 22 (a state before being held), the position of the mobile terminal 6 on the placement surface 22 is not constant.

  In addition, an inclined surface 23 that is inclined with respect to the mounting surface 22 is formed on the front side (−Y side) of the mounting surface 22. The inclined surface 23 is inclined so as to be higher toward the front side (−Y side), and is disposed so as to connect the position of the mounting surface 22 to the upper surface of the exterior cover 21. If the mobile terminal 6 is placed while being in contact with such an inclined surface 23, the mobile terminal 6 slides down on the placement surface 22, and thus the user can place the mobile terminal 6 on the placement surface 22 smoothly. it can.

  A terminal sensor 15 that detects that the portable terminal 6 is placed on the placement surface 22 is provided below the inclined surface 23. The terminal sensor 15 is, for example, an infrared sensor including a light emitting unit that emits infrared light and a light receiving unit that receives infrared light. The terminal sensor 15 detects that the mobile terminal 6 is placed on the placement surface 22 based on a change in the amount of infrared light received by the light receiving unit due to the reflection of infrared light at the mobile terminal 6.

  Further, a part of the inner side of the outer cover 21 that faces the left side (+ X side) and the right side (−X side) of the mounting surface 22 is cut out in a trapezoidal shape. As shown in FIG. 2, a recessed portion 24 a that is recessed lower than the upper surface of the exterior cover 21 is formed in the portion. When the mobile terminal 6 is placed on the placement surface 22, the recess 24 a faces the side surface of the mobile terminal 6. For this reason, the user can hold the side surface of the portable terminal 6 by putting a finger in the recess 24a, and can easily take out the portable terminal 6.

  Further, two slide covers 24 that slide along the left-right direction (X-axis direction) are provided below the exterior cover 21 (−Z side). As shown in FIG. 2, in the state where the holding device 1 does not hold the mobile terminal 6, most of the slide cover 24 is stored below the exterior cover 21. On the other hand, as shown in FIG. 3, when the holding device 1 holds the mobile terminal 6, the two slide covers 24 slide inward and come into contact with the mobile terminal 6 from the side of the mobile terminal 6.

  The aforementioned recess 24 a is formed as a part of the slide cover 24. As shown in FIG. 3, even when the slide cover 24 contacts the mobile terminal 6, the recess 24 a faces the side surface of the mobile terminal 6. For this reason, also in this case, the user can grip the side surface of the portable terminal 6 by putting a finger into the recess 24a.

  Further, four holding levers 32 are provided on the lower side (−Z side) of the slide cover 24. The four holding levers 32 are respectively arranged on the left front, left rear, right front, and right rear around the placement surface 22. As shown in FIG. 2, in a state where the holding device 1 does not hold the mobile terminal 6, most of the four holding levers 32 are stored below the exterior cover 21. On the other hand, as shown in FIG. 3, in a state where the holding device 1 holds the portable terminal 6, the four holding levers 32 respectively move inward (on the placement surface 22 side) and press the portable terminal 6. Accordingly, the four holding levers 32 hold the portable terminal 6 by pressing the four corners of the portable terminal 6 (portions corresponding to the vertices of the substantially rectangular main surface). In this state, most of the four holding levers 32 are covered with the slide cover 24 slid inward.

  An operation lamp 14 is provided on the front left side of the exterior cover 21, and an operation button 16 is provided on the rear center of the exterior cover 21. The operation lamp 14 includes, for example, a three-color LED that can emit light in a plurality of colors, and notifies the user of the operation state of the holding device 1 according to the light emission state. The operation button 16 receives a user operation.

  FIG. 4 is an exploded perspective view of the holding device 1. As shown in FIG. 4, the holding device 1 includes a substrate 29 on which a power transmission unit 12 serving as a transmission unit for transmitting electric power is disposed below the placement surface 22 (−Z side). The power transmission unit 12 is arranged at substantially the center in both the left and right direction (X-axis direction) and the front-rear direction (Y-axis direction) of the placement surface 22 so that the main surface thereof is parallel to the placement surface 22. . Therefore, when the mobile terminal 6 is placed on the placement surface 22, the main surface of the power transmission unit 12 faces the main surface of the mobile terminal 6 on the side where the power receiving unit is disposed.

  In addition, the holding device 1 includes a holding mechanism unit 4 below the substrate 29 (−Z side). The holding mechanism unit 4 operates the slide cover 24 and the holding lever 32 described above, and the portable terminal 6 is held when the holding mechanism unit 4 is driven.

  5 and 6 are perspective views showing the configuration of the holding mechanism section 4. FIG. 5 shows a state where the mobile terminal 6 is opened, and FIG. 6 shows a state where the mobile terminal 6 is held.

  As shown in these drawings, the holding mechanism unit 4 mainly includes a motor 43 that generates a driving force, one first slide chassis 41, and two second slide chassis 46. The first slide chassis 41 is movable in the front-rear direction (Y-axis direction) along the guide rail 42. The two second slide chassis 46 are movable in the left-right direction (X-axis direction) along the guide rail 47.

  A rack gear 41 a extending in the front-rear direction (Y-axis direction) is formed in a part of the first slide chassis 41, and the rack gear 41 a is engaged with the gear 45. The rotational force of the motor 43 is transmitted to the first slide chassis 41 via the two gears 44 and 45. Therefore, when the motor 43 rotates, the first slide chassis 41 moves in the front-rear direction (Y-axis direction).

  The first slide chassis 41 is connected to two second slide chassis 46 via four arms 48. One end of each of the four arms 48 is rotatably connected to the first slide chassis 41, and the other end is rotatably connected to one of the second slide chassis 46. For this reason, when the first slide chassis 41 moves in the front-rear direction (Y-axis direction), the four arms 48 move following this, so that the two second slide chassis 46 also move in the left-right direction (X-axis direction). Moving.

  In addition, the holding mechanism unit 4 includes support columns 31 that extend in the vertical direction (Z-axis direction) at positions serving as the rotation axes of the four holding levers 32. One support column 31 supports one holding lever 32. The holding lever 32 is disposed on the upper side (+ Z side) of the support column 31 and is rotatable about the support column 31 as a rotation axis. Further, the holding lever 32 is provided with a spring 34 which is an elastic material, and the holding lever 32 is biased in a direction to turn inward (direction of arrow AR3 in the drawing).

  In addition, an engagement lever 33 is provided at the lower portion (−Z side) of each support column 31. The engagement lever 33 is rotatable about the support column 31 as a rotation axis. Since the engaging lever 33 and the holding lever 32 arranged on the upper part share a rotating shaft, the holding lever 32 also rotates when the engaging lever 33 rotates. The holding lever 32 is rotated at the same angle as the angle at which the engaging lever 33 is rotated.

  Further, a protrusion projecting downward is provided at the tip of each engagement lever 33. The protrusion of the engagement lever 33 is engaged with an opening 46 a provided in the second slide chassis 46. For this reason, the rotatable range of the engaging lever 33 is restricted by the opening 46 a of the second slide chassis 46. Since the engaging lever 33 is biased together with the holding lever 32 so as to rotate inward by the spring 34, the engaging lever 33 is placed on the edge of the opening 46a (the inner edge of the holding mechanism 4). Maintain the abutting state. Therefore, when the second slide chassis 46 moves in the left-right direction (X-axis direction), the engagement lever 33 rotates following this, and as a result, the holding lever 32 also rotates.

  When the motor 43 is rotated from the state shown in FIG. 5, the first slide chassis 41 moves to the rear side (+ Y side) (arrow AR1 in FIG. 6). As described above, when the first slide chassis 41 moves, the two second slide chassis 46 move inward through the four arms 48. That is, the left second slide chassis 46 moves to the right (−X side), and the right second slide chassis 46 moves to the left (+ X side) (arrow AR2 in FIG. 6).

  By the movement of the second slide chassis 46, the opening 46a of the second slide chassis 46 is also moved inward, so that the four engagement levers 33 engaged with the opening 46a are moved inward by the urging force of the spring 34, respectively. Rotate. As a result, the four holding levers 32 also rotate inward (arrow AR3 in FIG. 6). The four holding levers 32 that have been rotated come into contact with the four corners of the mobile terminal 6 and press the four corners of the mobile terminal 6 toward the center of the placement surface 22 by the urging force of the spring 34.

  Thus, the four holding levers 32 move the mobile terminal 6 substantially parallel to the mounting surface 22 toward the center of the mounting surface 22 by pressing the four corners of the mobile terminal 6 while rotating. Since the four holding levers 32 move the mobile terminal 6 in this way, the front and rear direction (Y-axis) on the mounting surface 22 is maintained regardless of the position of the mounting surface 22 before the mobile terminal 6 is held. Direction) and left and right direction (X-axis direction), the mobile terminal 6 can be easily moved to substantially the center.

  The four holding levers 32 hold the portable terminal 6 in that position by further pressing the four corners of the portable terminal 6 after moving the portable terminal 6 to a substantially central portion of the placement surface 22. Thereby, the portable terminal 6 is fixed in the substantially center part of both the front-back direction (Y-axis direction) and the left-right direction (X-axis direction) in the mounting surface 22.

  The four holding levers 32 hold the portable terminal 6 in this way, thereby suppressing the movement of the portable terminal 6 in the parallel direction (substantially horizontal direction) of the placement surface 22. Since the holding force of the portable terminal 6 by the four holding levers 32 is the elastic force of the spring 34 that is an elastic member, the four holding levers 32 can hold the portable terminals 6 of various sizes. In addition, it is possible to prevent the mobile terminal 6 from rattling due to vibrations of the traveling vehicle 9 or the like.

  Further, the slide cover 24 (see FIGS. 2 and 3) described above is also moved by the movement of the holding mechanism section 4 as described above. As shown in FIGS. 5 and 6, gears 35 are provided on the upper portions of the rotation shafts of the four holding levers 32. The gear 35 rotates in the direction of the arrow AR3 in FIG. 6 in conjunction with the movement of the holding lever 32. The turning force of the gear 35 is transmitted to the slide cover 24, so that the slide cover 24 moves.

  FIG. 7 is a perspective view showing the relationship between the holding mechanism unit 4 and the slide cover 24. For explanation, a part of the configuration of the holding mechanism unit 4 is omitted, and the slide cover 24 is shown in a transparent manner.

  The gear 35 that interlocks with the four holding levers 32 is engaged with the gear 25. Further, the gear 25 engages with a rack gear 24 b provided in a part of the slide cover 24 and extending in the left-right direction (X-axis direction). With such a configuration, the rotational force of the gear 35 is transmitted to the slide cover 24 via the gear 25.

  Therefore, when the gear 35 rotates in the direction of the arrow AR3, the gear 25 rotates in the opposite direction, and as a result, the two slide covers 24 move inward. That is, the left slide cover 24 moves to the right side (−X side), and the right slide cover 24 moves to the left side (+ X side) (arrow AR4).

  When the two slide covers 24 move in this way, the two slide covers 24 come into contact with the mobile terminal 6 from the side of the mobile terminal 6 respectively. The slide cover 24 abuts on the mobile terminal 6 in this manner, thereby stopping the movement of the mobile terminal 6 in the orthogonal direction (substantially up and down direction) of the placement surface 22. The slide cover 24 contacts the mobile terminal 6 at a portion different from the recess 24a.

  FIG. 8 is a cross-sectional view at a position VIII-VIII in FIG. 3 which is a portion different from the recess 24a. As shown in FIG. 8, the slide cover 24 includes an abutting portion 24 c that is inclined with respect to the main surface of the mobile terminal 6, and the abutting portion 24 c is formed on the peripheral portion of the upper main surface of the mobile terminal 6. Abut against a part.

  The two slide covers 24 move from the left side (+ X side) and the right side (−X side) of the mobile terminal 6 and come into contact with the mobile terminal 6. Accordingly, the contact portion 24c that contacts the peripheral portion of the main surface of the mobile terminal 6 is inclined with respect to the main surface of the mobile terminal 6, and thus is directed to the lower (−Z side) placement surface 22. A pressing force is applied to the portable terminal 6. Thereby, the slide cover 24 stops the movement of the portable terminal 6 in the orthogonal direction (substantially up and down direction) of the placement surface 22.

  Since the contact part 24c is inclined with respect to the main surface of the mobile terminal 6, even if the size (thickness) of the mobile terminal 6 is different, the contact part 24c can contact the peripheral part of the main surface. For this reason, the slide cover 24 can effectively restrain the movement of the mobile terminals 6 of various sizes.

  Further, such a slide cover 24 is arranged on the side surface of the mobile terminal 6 without any gap and covers most of the four holding levers 32 (see FIG. 3). For this reason, in the state where holding device 1 held portable terminal 6, the appearance of holding device 1 can be made beautiful.

<1-3. Electrical configuration of holding device>
Next, the electrical configuration of the holding device 1 will be described. FIG. 9 is a block diagram mainly showing an electrical configuration of the holding device 1.

  As shown in FIG. 9, the holding device 1 includes a control unit 11 that controls the entire device. The control part 11 is a microcomputer provided with CPU, RAM, ROM, etc., for example. The control unit 11 is electrically connected to each unit such as the holding mechanism unit 4, the operation lamp 14, the terminal sensor 15, the operation button 16, and the power transmission unit 12 described above. Thus, the control unit 11 controls the operation of each unit of the holding device 1 and receives signals from each unit of the holding device 1.

  In addition, the control unit 11 is electrically connected to the display device 8 and can transmit and receive signals to and from the display device 8. For this reason, the control part 11 can transmit data with respect to the display apparatus 8, and can display information on the display of the display apparatus 8. FIG. Further, the control unit 11 can receive each user instruction received from the touch panel of the display device 8 from the display device 8 and control each unit so as to perform an operation in accordance with the user instruction.

  FIG. 9 also shows a schematic configuration of the portable terminal 6 together with the configuration of the holding device 1. The portable terminal 6 includes a communication unit 64 that communicates with other communication devices, a display unit 65 that displays various types of information, and a control unit 61 that controls the entire device. In addition, the mobile terminal 6 includes a power receiving unit 62 that receives power transmitted from the holding device 1.

  Transmission of power from the holding device 1 to the portable terminal 6 is realized by the cooperation of the power transmission unit 12 of the holding device 1 and the power receiving unit 62 of the portable terminal 6. This power transmission is also referred to as wireless power feeding or non-contact power transmission, and non-contact power transmission capable of transmitting power without using a metal contact or a connector is employed. Non-contact power transmission is a proximity wireless transmission system that transmits power in the near field using mutual induction. For this reason, the closer the positions of the power transmission unit 12 and the power receiving unit 62 are, the more efficiently power can be transmitted. On the other hand, if the positions of the power transmission unit 12 and the power reception unit 62 are greatly shifted, power cannot be transmitted.

  In the present embodiment, for example, electromagnetic induction type non-contact power transmission is employed. In the electromagnetic induction method, a primary coil and a secondary coil are electromagnetically coupled to form a transformer, and electric power is transmitted using an electromagnetic induction action.

  The power transmission unit 12 of the holding device 1 includes a power transmission coil 12a and an inverter 12b. The power transmission coil 12a functions as a primary coil of a transformer that transmits power. Further, the inverter 12b converts the DC power of the battery 95 provided in the vehicle 9 into AC power. Thereby, the inverter 12b supplies alternating current power to the power transmission coil 12a.

  On the other hand, the power receiving unit 62 of the portable terminal 6 includes a power receiving coil 62a and a rectifier 62b. The power receiving coil 62a functions as a secondary coil of a transformer that transmits power. The rectifier 62b converts AC power generated in the power receiving coil 62a into DC power. The rectifier 62b supplies DC power to the rechargeable battery 69 included in the mobile terminal 6. Thereby, the battery 69 of the portable terminal 6 is charged.

  FIG. 10 is a diagram illustrating an arrangement of the power transmission coil 12 a inside the power transmission unit 12. As shown in FIG. 10, the power transmission unit 12 includes three power transmission coils 12a. These three power transmission coils 12a are arranged in the front-rear direction (Y-axis direction). The power transmission unit 12 can transmit electric power within a predetermined distance (for example, 10 mm) in the horizontal direction (XY direction) from the line CL connecting the center positions CP of the three power transmission coils 12a.

  As described above, the holding device 1 places the mobile terminal 6 placed on the placement surface 22 at substantially the center in both the front-rear direction (Y-axis direction) and the left-right direction (X-axis direction) on the placement surface 22. Move and hold. For this reason, the portable terminal 6 of any size is held at the approximate center of the placement surface 22. Further, the power receiving unit 62 in the mobile terminal 6 is generally disposed at the approximate center of the left and right of the mobile terminal 6 due to space restrictions.

  Therefore, in order for the holding device 1 to supply power to the portable terminal 6, it is not necessary to enable power transmission over the entire surface of the mounting surface 22, and the mounting surface 22 narrower than the entire surface of the mounting surface 22 can be used. It is sufficient that power can be transmitted in a region near the center. For this reason, the holding device 1 can make the size of the power transmission unit 12 relatively small. Thus, if the size of the power transmission unit 12 is reduced, the number of power transmission components such as the power transmission coil 12a required for the power transmission unit 12 can be reduced. Therefore, the cost of the power transmission unit 12 can be significantly reduced as compared with the case where power can be transmitted over the entire mounting surface 22.

<1-4. Operation of holding device>
Next, the operation flow of the holding device 1 will be described. First, an operation when the holding device 1 holds the mobile terminal 6 will be described. FIG. 11 shows a flow of operation when the holding device 1 holds the mobile terminal 6. This operation is executed under the control of the control unit 11.

  First, the control part 11 determines whether the portable terminal 6 was mounted in the mounting surface 22 based on the signal from the terminal sensor 15 (step S11). When the mobile terminal 6 is placed, the control unit 11 transmits a signal to the holding mechanism unit 4. Thereby, the holding mechanism unit 4 starts an operation of holding the mobile terminal 6. The holding mechanism unit 4 holds the portable terminal 6 after pressing the four corners of the portable terminal 6 with the four holding levers 32 and moving the portable terminal 6 to the approximate center of the placement surface 22 (step S12).

  When the holding mechanism unit 4 holds the portable terminal 6, the first slide chassis 41 moves by the rotation of the motor 43, but the holding lever 32 holds the portable terminal 6 and the first slide chassis 41 cannot move. And the current of the motor 43 is greatly increased. The control unit 11 grasps that the holding mechanism unit 4 holds the portable terminal 6 based on the current increase of the motor 43 and stops the rotation of the motor 43.

  When the holding mechanism unit 4 holds the mobile terminal 6, the control unit 11 transmits a signal to the power transmission unit 12. Thereby, the power transmission unit 12 starts transmission of the electric power to the portable terminal 6 (step S13). At this time, among the three power transmission coils 12a included in the power transmission unit 12, only one power transmission coil 12a capable of transmitting power most efficiently may be energized.

  Next, an operation when the holding device 1 opens the mobile terminal 6 will be described. FIG. 12 shows an operation flow when the holding device 1 opens the mobile terminal 6. This operation is also executed under the control of the control unit 11.

  First, the control part 11 determines whether the open conditions which should open the portable terminal 6 are satisfied (step S21). The opening conditions are, for example, “the operation button 16 is pressed”, “the mobile terminal 6 is removed”, “the ACC switch of the vehicle 9 is turned off”, and the like. Based on the signal from the terminal sensor 15, the control unit 11 can grasp that the mobile terminal 6 has been removed by the user.

  When the opening condition is satisfied, first, the control unit 11 transmits a signal to the power transmission unit 12, and the power transmission unit 12 stops the transmission of power to the portable terminal 6 (step S22). Further, the control unit 11 transmits a signal to the holding mechanism unit 4, and the holding mechanism unit 4 performs an operation of opening the portable terminal 6 (step S23). The holding mechanism unit 4 performs an operation of opening the mobile terminal 6 by rotating the motor 43 in the opposite direction to the case of holding the mobile terminal 6.

  As described above, the holding device 1 according to the present embodiment includes the power transmission unit 12 that transmits power to the portable terminal 6 placed on the placement surface 22 using the proximity wireless transmission method. The holding device 1 also includes a holding mechanism unit 4 that moves the mobile terminal 6 placed on the placement surface 22 substantially parallel to the placement surface 22. Since the holding mechanism unit 4 moves the portable terminal 6 placed on the placement surface 22, the position of the portable terminal 6 with respect to the range in which the power transmission unit 12 can transmit power can be adjusted. For this reason, since electric power can be transmitted to the portable terminal 6 even if the size of the power transmission unit 12 is smaller than the size of the mounting surface 22, the size of the power transmission unit 12 can be reduced. As a result, the cost of the power transmission unit 12 can be reduced. Moreover, since the holding mechanism part 4 moves the portable terminal 6 toward the center part of the mounting surface 22, the size of the power transmission unit 12 can be effectively reduced.

  In addition, since the holding mechanism unit 4 moves the mobile terminal 6 by pressing the four corners of the mobile terminal 6 with the four holding levers 32, both the front and rear directions and the left and right direction substantially central portions of the placement surface 22. The mobile terminal 6 can be easily moved.

  In addition, the holding device 1 includes a slide cover 24 that comes into contact with a part of the peripheral edge of the main surface of the mobile terminal 6 and stops the mobile terminal 6 from moving in the direction orthogonal to the placement surface 22. Thereby, since separation from the mounting surface 22 of the portable terminal 6 can be prevented, power transmission can be effectively performed in the proximity wireless transmission method.

<2. Second Embodiment>
Next, a second embodiment will be described. Since the configuration and operation of the holding device 1 of the second embodiment are substantially the same as those of the first embodiment, the following description will focus on differences from the first embodiment. In the first embodiment, the position of the mobile terminal 6 on the placement surface 22 is fixed when the holding mechanism unit 4 holds the mobile terminal 6. In contrast, in the second embodiment, the position of the mobile terminal 6 on the placement surface 22 can be further changed after the holding mechanism unit 4 holds the mobile terminal 6.

  FIG. 13 is a diagram illustrating an outline of the configuration of the holding device 1 according to the second embodiment. Also in the second embodiment, the holding device 1 includes the substrate 29 on which the power transmission unit 12 is disposed on the lower side (−Z side) of the mounting surface 22, and further below the substrate 29 (−Z The holding mechanism 4 is provided on the side). The configuration of the holding mechanism unit 4 is the same as that of the first embodiment, and the holding mechanism unit 4 holds the portable terminal 6 by pressing the four corners of the portable terminal 6 with the four holding levers 32. However, the holding mechanism unit 4 is fixed to a biaxial stage 5 that is a mechanism that moves in the front-rear direction and the left-right direction.

  The biaxial stage 5 moves the holding mechanism 4 in a substantially horizontal direction relative to the housing 59. The housing 59 that houses the biaxial stage 5 is fixed relatively to the exterior cover 21, the mounting surface 22, and the substrate 29. Therefore, the hatched portion in the figure moves in a substantially horizontal direction relative to the non-hatched portion.

  For this reason, the biaxial stage 5 can move the portable terminal 6 held by the holding mechanism unit 4 substantially parallel to the placement surface 22. More specifically, the biaxial stage 5 moves the mobile terminal 6 both in the front-rear direction (Y-axis direction) and in the left-right direction (X-axis direction). With such a configuration, the holding device 1 according to the second embodiment can adjust the position of the mobile terminal 6 with respect to the power transmission unit 12.

  FIG. 14 is a perspective view showing the configuration of the biaxial stage 5. The biaxial stage 5 includes a first slider 51, a second slider 52, and a movable stage 53.

  The first slider 51 is fixedly disposed on the housing 59 so as to extend in the front-rear direction (Y-axis direction). In addition, the second slider 52 is disposed above the first slider 51 so as to extend in the left-right direction (X-axis direction). Further, the movable stage 53 is disposed on the upper part of the second slider 52.

  The 1st slider 51 moves the 2nd slider 52 provided in the upper part in the front-back direction (Y-axis direction) with the built-in motor. The second slider 52 moves the movable stage 53 provided on the upper side in the left-right direction (X-axis direction) by a built-in motor. Therefore, the movable stage 53 is moved in the front-rear direction (Y-axis direction) and the left-right direction (X-axis direction) by these two sliders 51 and 52.

  The movable stage 53 is a plate-like member extending substantially in the horizontal direction, and the holding mechanism unit 4 is fixed on the upper surface thereof. With such a configuration, the holding mechanism unit 4 and the portable terminal 6 held by the holding mechanism unit 4 can move both in the front-rear direction (Y-axis direction) and in the left-right direction (X-axis direction).

  FIG. 15 is a block diagram illustrating an electrical configuration of the holding device 1 according to the second embodiment and a schematic configuration of the mobile terminal 6. As shown in FIG. 15, the holding device 1 of the second embodiment further includes a biaxial stage 5 in addition to the configuration of the first embodiment shown in FIG. 9. The controller 11 is electrically connected to the biaxial stage 5 and can control the operation of the biaxial stage 5.

  The power transmission unit 12 includes an evaluation value deriving unit 12c that derives an evaluation value in addition to the configuration of the first embodiment shown in FIG. The evaluation value is a value indicating whether or not the power transmission state in the power transmission unit 12 is good. The evaluation value is determined such that the higher the power is efficiently transmitted and the better the transmission state is, the higher the evaluation value is.

  When the positions of the power transmission coil 12a and the power reception coil 62a are greatly deviated and power cannot be transmitted, only self-induction occurs in the power transmission coil 12a. On the other hand, when the power transmission coil 12a and the power reception coil 62a come close to each other and are electromagnetically coupled to transmit power, the power transmission coil 12a causes mutual induction in addition to self-induction. For this reason, the inductance of the power transmission coil 12a and the current flowing through the power transmission coil 12a change. Using this principle, the evaluation value deriving unit 12c derives an evaluation value based on the inductance of the power transmission coil 12a and the current flowing through the power transmission coil 12a.

  The control unit 11 according to the second embodiment receives this evaluation value from the evaluation value deriving unit 12c, controls the biaxial stage 5 according to the evaluation value, and places the portable terminal 6 at a position where the evaluation value is highest. Moving.

  FIG. 16 is a diagram illustrating an example of the relationship between the position of the mobile terminal 6 on the placement surface 22 and the evaluation value. As shown in the figure, the evaluation value changes according to the position of the mobile terminal 6 on the placement surface 22. The evaluation value increases as the mobile terminal 6 approaches the position P, and decreases as the mobile terminal 6 moves away from the position P. When the portable terminal 6 is at the position P in the figure, the evaluation value is the highest and forms a peak. Hereinafter, the position P of the mobile terminal 6 having the highest evaluation value is referred to as “optimum position” P. When the mobile terminal 6 is at the optimum position P, power can be transmitted most efficiently.

  In general, when the positions of the power receiving unit 62 of the mobile terminal 6 and the power transmitting unit 12 of the holding device 1 match, the evaluation value is the highest. However, the position of the power receiving unit 62 in the mobile terminal 6 differs depending on the model of the mobile terminal 6. For this reason, the optimum position P on the placement surface 22 differs for each model of the mobile terminal 6. The control unit 11 moves the mobile terminal 6 according to the evaluation value, and moves the mobile terminal 6 to such an optimal position P.

  FIG. 17 shows an operation flow when the holding device 1 of the second embodiment holds the portable terminal 6. This operation is also executed under the control of the control unit 11.

  First, the control part 11 determines whether the portable terminal 6 was mounted in the mounting surface 22 based on the signal from the terminal sensor 15 (step S31). And when the portable terminal 6 is mounted, the control part 11 transmits a signal to the holding | maintenance mechanism part 4, and, thereby, the holding | maintenance mechanism part 4 hold | maintains the portable terminal 6 (step S32). The operations so far are the same as steps S11 and S12 of the first embodiment.

  Next, the control unit 11 controls the power transmission unit 12 to cause the evaluation value deriving unit 12c of the power transmission unit 12 to start deriving the evaluation value (step S33). Thereafter, the control unit 11 continuously acquires the evaluation value derived by the evaluation value deriving unit 12c and monitors a change in the evaluation value.

  Next, the control unit 11 controls the biaxial stage 5 while monitoring the evaluation value, and moves the portable terminal 6 in the front-rear direction (Y-axis direction). And the control part 11 moves the portable terminal 6 to the position where an evaluation value becomes the highest in the front-back direction (Y-axis direction) (step S34).

  FIG. 18 is a diagram illustrating a method of moving the mobile terminal 6 to a position where the evaluation value is highest. In the figure, the horizontal axis indicates the position of the mobile terminal 6 and the vertical axis indicates the evaluation value. The initial position of the mobile terminal 6 is assumed to be the position P0.

  First, the control unit 11 slightly moves the mobile terminal 6 from the initial position P0 (arrow A1), and monitors the change in the evaluation value. The control unit 11 determines the direction in which the evaluation value increases due to this change, and moves the mobile terminal 6 in the direction in which the evaluation value increases (arrow A2). Although the evaluation value gradually increases as the mobile terminal 6 moves as described above, the evaluation value decreases when the mobile terminal 6 is moved beyond the position where the evaluation value is highest (arrow A3). The control unit 11 determines such a decrease in the evaluation value, temporarily stops the portable terminal 6 at the position P1 determined as such, and then moves in the reverse direction toward the position P2 where the evaluation value is the highest. The portable terminal 6 is moved (arrow A4). By such a method, the control part 11 can move the portable terminal 6 to the position P2 where the evaluation value is highest.

  When the control unit 11 moves the mobile terminal 6 to the position where the evaluation value is highest in the front-rear direction (Y-axis direction), next, the control unit 11 controls the biaxial stage 5 to move the mobile terminal 6 in the left-right direction (X It moves in the axial direction (step S35). The control unit 11 moves the mobile terminal 6 to a position where the evaluation value is highest in the left-right direction (X-axis direction) in the same manner as when moving in the front-rear direction (Y-axis direction) (step S35).

  Thereby, the control part 11 can move the portable terminal 6 to the optimal position P where the evaluation value is highest in both the front-rear direction (Y-axis direction) and the left-right direction (X-axis direction).

  Next, the control unit 11 determines whether or not the power transmission state is good at the position where the mobile terminal 6 has moved. For example, the control unit 11 determines whether or not the transmission state is good depending on whether or not the evaluation value exceeds a predetermined threshold (step S36).

  If the evaluation value exceeds a predetermined threshold and the power transmission state is good, the process is terminated as it is. On the other hand, when the evaluation value is less than the predetermined threshold value and the power transmission state is not good, the control unit 11 turns on the operation lamp 14 in a predetermined mode (for example, flashing red), etc. Information related to the transmission state is notified to the user (step S37). Thereby, the user can grasp that the power transmission state does not become good even when the mobile terminal 6 is moved.

  Note that the control unit 11 also has the power transmission state in steps S34 and S35 when the mobile terminal 6 cannot be moved to a position where the evaluation value is highest because the evaluation value does not form a clear peak. You may alert | report to a user the information which shows not becoming favorable. Further, the control unit 11 may transmit a signal to the display device 8 to display information indicating that the power transmission state is not good on the display device 8.

  As described above, the holding device 1 according to the second embodiment includes the biaxial stage 5 that can move the mobile terminal 6 held by the holding mechanism unit 4 substantially parallel to the placement surface 22. . Under the control of the control unit 11, the biaxial stage 5 moves the mobile terminal 6 according to an evaluation value indicating whether the power transmission state of the power transmission unit 12 is good or bad. Thus, since the portable terminal 6 is moved according to the evaluation value, the portable terminal 6 can be moved to a position on the placement surface 22 where the evaluation value is high. Therefore, the power transmission state of the power transmission unit 12 can be improved.

  Moreover, since the portable terminal 6 can be moved with a larger width compared to the first embodiment, power can be transmitted to the portable terminal 6 even if the size of the power transmission unit 12 is smaller. Therefore, the size of the power transmission unit 12 can be further reduced, and the cost of the power transmission unit 12 can be further reduced.

  If the power transmission state does not improve even after moving the mobile terminal 6, the operation lamp 14 notifies the user to that effect. For this reason, the user can grasp | ascertain the transmission state of electric power.

  In the above, the mobile terminal 6 is moved to a position where the evaluation value is the highest. However, when the evaluation value exceeds a predetermined threshold (when the power transmission state becomes good), the mobile terminal 6 is moved. You may stop moving.

<3. Third Embodiment>
Next, a third embodiment will be described. In the first and second embodiments, the holding device 1 has been described as performing contactless power transmission as a proximity wireless transmission method. However, even if another proximity wireless transmission method is performed, the holding device 1 is described above. The technique described in the above can be suitably applied. For example, the holding device 1 may perform short-range wireless communication with the mobile terminal 6.

  Near field communication is also called NFC (Near Field Communication) or non-contact communication, and is a proximity type wireless transmission system that can transmit both power and signals in the near field without using metal contacts or connectors. is there. The holding device 1 capable of short-range wireless communication can acquire data stored in the mobile terminal 6 by using short-range wireless communication, for example.

  The in-vehicle display system 10 including such a holding device 1 uses the data acquired from the mobile terminal 6 to customize, for example, the content displayed on the display device 8 according to the preference of the owner of the mobile terminal 6. Can do. The in-vehicle display system 10 can also use the result of authentication based on the data acquired from the mobile terminal 6 as the engine start condition of the vehicle 9.

  The holding device 1 of the third embodiment described below corresponds to the holding device 1 of the second embodiment that performs short-distance wireless communication instead of contactless power transmission. For this reason, since the structure and operation | movement of the holding | maintenance apparatus 1 of 3rd Embodiment are substantially the same as 2nd Embodiment, below, it demonstrates centering around difference with 2nd Embodiment.

  FIG. 19 is an exploded perspective view of the holding device 1 according to the third embodiment. The holding device 1 according to the third embodiment replaces the power transmission unit 12 included in the holding device 1 according to the second embodiment (see FIG. 4) and is a reader / writer serving as a transmission unit for short-range wireless communication. 13 is provided on the substrate 29. Other configurations of the holding device 1 of the third embodiment are the same as those of the second embodiment.

  FIG. 20 is a block diagram illustrating an electrical configuration of the holding device 1 according to the third embodiment and a schematic configuration of the mobile terminal 6. As illustrated in FIG. 20, the holding device 1 according to the third embodiment includes a reader / writer 13 without the power transmission unit 12. The mobile terminal 6 according to the third embodiment also includes a short-range communication unit 63 for short-range wireless communication instead of the power receiving unit 62.

  The near field communication is realized by the cooperation of the reader / writer 13 and the near field communication unit 63. The reader / writer 13 transmits power and a carrier wave signal to the short-range communication unit 63 by using electromagnetic induction. The short-range communication unit 63 operates by receiving such power supply, and returns a data signal to the reader / writer 13 by load modulating the carrier wave signal. As described above, short-range wireless communication uses an electromagnetic induction action, so that power and signals cannot be transmitted when the positions of the reader / writer 13 and the short-range communication unit 63 are greatly shifted.

  The short-range communication unit 63 of the mobile terminal 6 includes an antenna 63a and an IC chip 63b. The antenna 63a includes, for example, a coil that generates an electromagnetic induction effect. The IC chip 63b includes a memory that stores data and a load modulation unit that performs load modulation. The short-range communication unit 63 can return a signal of the data to the reader / writer 13 by performing load modulation according to the data to be returned by the load modulation unit of the IC chip 63b.

  The reader / writer 13 of the holding device 1 includes an antenna 13a, a demodulator 13b, and an evaluation value deriving unit 13c. The antenna 13a includes a coil that generates an electromagnetic induction effect. The reader / writer 13 includes, for example, three antennas 13a, and the arrangement of the three antennas 13a inside the reader / writer 13 is the same as the arrangement of the three power transmission coils 12a inside the power transmission unit 12 shown in FIG. You can do it.

  The demodulator 13 b demodulates the data signal returned from the short-range communication unit 63. For example, the demodulation unit 13b demodulates the data signal by performing envelope detection on the amplitude change of the voltage at the antenna 13a and binarizing the detected signal.

  The evaluation value deriving unit 13c derives an evaluation value indicating whether the communication state (power or signal transmission state) in the reader / writer 13 is good. The evaluation value is determined to be higher as the communication state is better. The closer the position between the reader / writer 13 and the short-range communication unit 63, the higher the level of the signal detected by the demodulation unit 13b. Therefore, the evaluation value deriving unit 12c derives an evaluation value based on the signal detected by the demodulation unit 13b.

  The relationship between the position of the mobile terminal 6 on the placement surface 22 and the evaluation value is the same as that shown in FIG. That is, the evaluation value changes according to the position of the mobile terminal 6 on the placement surface 22, and increases as the mobile terminal 6 approaches the optimal position P, and decreases as the mobile terminal 6 moves away from the optimal position P. When the portable terminal 6 is at the optimum position P, the evaluation value becomes the highest and forms a peak.

  Therefore, as in the second embodiment, the control unit 11 controls the biaxial stage 5 and moves the portable terminal 6 according to the evaluation value, so that the evaluation value becomes higher on the placement surface 22. The portable terminal 6 can be moved to P. Therefore, in the holding device 1 according to the third embodiment, the communication state of the reader / writer 13 can be improved.

  Further, even when the holding device 1 performs short-distance wireless communication like the holding device 1 of the third embodiment, the short-range wireless communication is similar to the power transmission unit 12 of the first and second embodiments. The size of the reader / writer 13 for communication can be reduced. For this reason, the cost of the reader / writer 13 can be reduced.

<4. Fourth Embodiment>
Next, a fourth embodiment will be described. The holding device 1 according to the fourth embodiment is configured to perform both contactless power transmission and short-range wireless communication as a proximity wireless transmission method. For this reason, the configuration of the holding device 1 according to the fourth embodiment is a combination of the configuration of the holding device 1 according to the second embodiment and the configuration of the holding device 1 according to the third embodiment. ing.

  FIG. 21 is an exploded perspective view of the holding device 1 according to the fourth embodiment. As shown in FIG. 21, the holding device 1 according to the fourth embodiment includes a power transmission unit 12 for contactless power transmission and a reader / writer 13 for short-range wireless communication arranged on the same substrate 29. I have. Other configurations of the holding device 1 of the fourth embodiment are the same as those of the above-described embodiment.

  FIG. 22 is a block diagram illustrating an electrical configuration of the holding device 1 according to the fourth embodiment and a schematic configuration of the mobile terminal 6. As shown in FIG. 22, the holding device 1 according to the fourth embodiment includes both a power transmission unit 12 and a reader / writer 13. The mobile terminal 6 according to the fourth embodiment includes both the power receiving unit 62 and the short-range communication unit 63. Therefore, the holding device 1 according to the fourth embodiment can perform both contactless power transmission and short-range wireless communication with the mobile terminal 6.

  The control unit 11 derives an evaluation value related to contactless power transmission derived by the evaluation value deriving unit 12 c of the power transmission unit 12 (hereinafter referred to as “first evaluation value”) and an evaluation value deriving unit 13 c of the reader / writer 13. And an evaluation value related to short-range wireless communication (hereinafter referred to as “second evaluation value”). The control unit 11 controls the biaxial stage 5 according to these two evaluation values, and moves the portable terminal 6 to a position where both contactless power transmission and short-range wireless communication are possible.

  FIG. 23 shows an operation flow when the holding device 1 of the fourth embodiment holds the mobile terminal 6. This operation is also executed under the control of the control unit 11. In this operation, first, the position of the portable terminal 6 related to contactless power transmission is adjusted, and then the position of the portable terminal 6 related to short-range wireless communication is adjusted.

  First, the control part 11 determines whether the portable terminal 6 was mounted in the mounting surface 22 based on the signal from the terminal sensor 15 (step S41). And when the portable terminal 6 is mounted, the control part 11 transmits a signal to the holding | maintenance mechanism part 4, and, thereby, the holding | maintenance mechanism part 4 hold | maintains the portable terminal 6 (step S42).

  Next, the control unit 11 controls the power transmission unit 12 to cause the evaluation value deriving unit 12c of the power transmission unit 12 to start deriving the first evaluation value (step S43). Next, the control unit 11 monitors the first evaluation value and moves the mobile terminal 6 to a position where the first evaluation value is highest in the front-rear direction (Y-axis direction) (step S44). Furthermore, the control unit 11 monitors the first evaluation value, and moves the portable terminal 6 to a position where the first evaluation value is highest in the left-right direction (X-axis direction) (step S45).

  Thereby, the control part 11 can move the portable terminal 6 to the position where a 1st evaluation value becomes the highest in both the front-back direction (Y-axis direction) and the left-right direction (X-axis direction). The operations so far are the same as steps S31 to S35 of the second embodiment.

  Next, based on the first evaluation value, the control unit 11 determines whether or not the power transmission state is good at the position where the mobile terminal 6 has been moved (step S46). When the first evaluation value is less than the predetermined threshold value and the power transmission state is not good, the control unit 11 lights the operation lamp 14 in a predetermined manner to notify the user that the power transmission state is not good. (Step S47), and the process ends.

  On the other hand, when the first evaluation value exceeds a predetermined threshold and the power transmission state is good, the control unit 11 subsequently adjusts the position of the mobile terminal 6 for short-range wireless communication.

  First, the control unit 11 controls the reader / writer 13 to cause the evaluation value deriving unit 13c of the reader / writer 13 to start derivation of the second evaluation value (step S48).

  Next, the control unit 11 monitors the second evaluation value and moves the mobile terminal 6 to a position where the second evaluation value is highest in the front-rear direction (Y-axis direction) (step S49). Further, the control unit 11 monitors the second evaluation value, and moves the portable terminal 6 to a position where the second evaluation value is highest in the left-right direction (X-axis direction) (step S50). However, in steps S44 and S45, the control unit 11 moves the mobile terminal 6 only within a range where the first evaluation value exceeds a predetermined threshold, and does not move within a range where the first evaluation value is less than the predetermined threshold. . Thereby, the portable terminal 6 can be moved to a position where the second evaluation value is highest within a range where contactless power transmission is possible.

  Next, based on the second evaluation value, the control unit 11 determines whether or not the communication state of the short-range wireless communication is good at the position where the mobile terminal 6 has been moved (step S51). If the second evaluation value exceeds a predetermined threshold and the communication state is good, the process is terminated as it is. Thereby, the control part 11 can move the portable terminal 6 to the position where both non-contact electric power transmission and near field communication are possible.

  On the other hand, when the second evaluation value is less than the predetermined threshold value and the communication state is not good, the control unit 11 turns on the operation lamp 14 in a predetermined manner to indicate that the short-range wireless communication state is not good. The user is notified (step S52), and the process is terminated. Note that the lighting mode (color, blinking period, etc.) of the operation lamp 14 may be different between step S47 and step S52. Thereby, the user can grasp | ascertain which transmission state of non-contact electric power transmission and near field communication is not favorable.

  As described above, in the fourth embodiment, the holding device 1 can perform both contactless power transmission and short-range wireless communication.

  In the above description, the adjustment of the position of the portable terminal 6 related to the contactless power transmission is preferentially performed. However, the adjustment of the position of the portable terminal 6 related to the short-range wireless communication may be preferentially performed. Moreover, the user may be able to select which wireless transmission method is prioritized via the touch panel of the display device 8 or the like.

  In steps S49 and S50, the movement of the mobile terminal 6 may be stopped when the second evaluation value exceeds a predetermined threshold (when the communication state becomes good). In this case, if the second evaluation value exceeds a predetermined threshold in the state before the mobile terminal 6 is moved in steps S49 and S50, the mobile terminal 6 is not moved.

  The power transmission efficiency by contactless power transmission is easily affected by the difference in the position of the mobile terminal 6. For this reason, from the viewpoint of contactless power transmission, it is desirable to arrange the mobile terminal 6 at a position where the transmission state is the best. On the other hand, from the viewpoint of short-range wireless communication, the mobile terminal 6 may be arranged at least at a position where the communication state is good, and the mobile terminal 6 is not necessarily arranged at a position where the communication state is best. Therefore, if the mobile terminal 6 is arranged at a position where the transmission state of the contactless power transmission is the best in the range where the communication state of the short-range wireless communication is good, both of the contactless power transmission and the short-range wireless communication are achieved. The mobile terminal 6 can be arranged at a well-balanced position considering the transmission state.

<5. Modification>
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications are possible. Below, such a modification is demonstrated. All the forms including the above-described embodiment and the form described below can be appropriately combined.

  For example, as illustrated in FIG. 24, the holding device 1 may include a protruding portion 26 that can protrude above the mounting surface 22 (+ Z side) on the mounting surface 22. The protrusion 26 is usually at the same height as the placement surface 22 as shown in the upper part of FIG. 24, but when the holding device 1 opens the portable terminal 6 (for example, after step S23 of FIG. 12). ) Protrudes upward (+ Z side) as shown in the lower part of FIG. Thereby, since the protrusion part 26 lifts a part of portable terminal 6, a user can take out the portable terminal 6 easily.

  Moreover, in the said embodiment, the movement of the portable terminal 6 to the orthogonal | vertical direction of the mounting surface 22 was restrained because the slide cover 24 used as a restraining member contact | abuts to the peripheral part of the main surface of the portable terminal 6. . On the other hand, the movement of the portable terminal 6 in the direction orthogonal to the placement surface 22 may be inhibited by covering the upper surface (+ Z side) of at least a part of the main surface of the portable terminal 6 with the restraining member. In addition, the slide cover 24 of the above embodiment is in contact with a part of the peripheral portion of the main surface of the mobile terminal 6, but may be in contact with the entire peripheral portion of the main surface of the mobile terminal 6.

  In the second to fourth embodiments, the mobile terminal 6 is moved in both the front-rear direction and the left-right direction using the biaxial stage 5, but a mechanism that moves only in one direction is employed. You may make it move the portable terminal 6 only to either the front-back direction or the left-right direction.

  In the above embodiment, the holding mechanism unit 4 presses the four corners of the mobile terminal 6 to move and hold the mobile terminal 6, but the mobile terminal 6 is pressed by pressing at least one side surface of the mobile terminal 6. It may be moved or held.

  In the embodiment described above, the holding mechanism unit 4 moves and holds the mobile terminal 6 to the substantially central portion of the placement surface 22, but moves the portable terminal 6 to any end portion of the placement surface 22. May be held.

  Moreover, in the said embodiment, although the electromagnetic induction system was used as a system of non-contact electric power transmission, you may use other systems, such as an electromagnetic field resonance system.

  In the above embodiment, as the proximity wireless transmission method, contactless power transmission for transmitting power and short-range wireless communication for transmitting power and signals have been specifically described. The wireless transmission method may be another method for transmitting at least one of power and signals.

  Moreover, although the mounting surface 22 of the said embodiment was provided in a vehicle, the mounting surface of a holding | maintenance apparatus may be provided in buildings, such as a general house, a building, and a factory.

DESCRIPTION OF SYMBOLS 1 Holding device 4 Holding mechanism part 5 Biaxial stage 6 Portable terminal 12 Power transmission unit 12a Power transmission coil 13 Reader / writer 22 Mounting surface 24 Slide cover 32 Holding lever

Claims (12)

A holding device for holding a mobile terminal,
A mounting surface on which the portable terminal is mounted;
A moving member that moves the mobile terminal placed on the placement surface substantially parallel to the placement surface;
A transmission unit that transmits at least one of electric power and a signal in the proximity wireless transmission method with the portable terminal placed on the placement surface;
A holding device comprising: The holding device according to claim 1, wherein
The holding device, wherein the moving member moves the portable terminal toward a central portion of the placement surface. The holding device according to claim 1 or 2,
The moving member is
Pressing members for pressing the four corners of the mobile terminal;
A holding device comprising: The holding device according to claim 3, wherein
A restraining member that abuts at least a part of the peripheral portion of the main surface of the mobile terminal and restrains the movement of the mobile terminal in the orthogonal direction of the placement surface;
The holding device further comprising: The holding device according to claim 4,
The holding device according to claim 1, wherein a contact portion of the restraining member that contacts the mobile terminal is inclined with respect to the main surface. The holding device according to any one of claims 1 to 5,
Deriving means for deriving an evaluation value indicating the quality of the transmission state of the transmission unit;
Further comprising
The holding device, wherein the moving member moves the mobile terminal according to the evaluation value. The holding device according to claim 6, wherein
In the case where the transmission state does not become good even when the moving member moves the portable terminal, a notification means for notifying the user of information
The holding device further comprising: The holding device according to any one of claims 1 to 7,
The proximity wireless transmission method includes contactless power transmission. The holding device according to any one of claims 1 to 7,
The holding apparatus according to claim 1, wherein the proximity wireless transmission system includes short-range wireless communication. The holding device according to any one of claims 1 to 9,
The holding device according to claim 1, wherein the mounting surface is provided in a vehicle. A holding method for holding a mobile terminal on a mounting surface,
(A) a step of moving the portable terminal placed on the placement surface substantially parallel to the placement surface;
(B) a step in which the transmission unit transmits at least one of electric power and signals with the portable terminal placed on the placement surface by a proximity wireless transmission method;
A holding method characterized by comprising: The holding method according to claim 11,
(C) deriving an evaluation value indicating the quality of the transmission state of the transmission unit;
Further comprising
In the holding method, the step (a) moves the portable terminal according to the evaluation value.

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