Charging device

Abstract

A charging device according to the present disclosure wirelessly charges a terminal device that is mounted on a mounting surface and that receives wirelessly transmitted power. The charging device includes a first charging coil, a magnet, and a moving mechanism. The first charging coil is configured so as to transmit power to the terminal device. The magnet is disposed on the outside of the first charging coil. The moving mechanism is configured so as to move the first charging coil and the magnet along the placement surface in a chargeable region corresponding to the placement surface.

Description

Technical Field

[0001] The present disclosure relates to a charging device. Background Art

[0002] A charging device is known that wirelessly charges a terminal device with a built-in battery (contactless charging). In wireless charging, the closer the charging coil on the charging device side is to the induction coil on the terminal device side that is the charging target, the higher the charging efficiency.

[0003] For example, Patent Document 1 discloses a magnetic attraction type charging device that uses magnetic force to position (align) a terminal device. In this magnetic attraction type charging device, the charging coil and the induction coil are aligned using the magnetic attraction force generated between a magnet disposed together with the charging coil and a magnet disposed together with the induction coil in the terminal device to be charged.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: International Publication No. 2013 / 047557 Summary of the invention

[0007] However, when a terminal device that is not equipped with a magnet together with the induction coil is the charging target, the magnetic force from the magnet equipped in the charging device together with the charging coil may affect the terminal device and there is a concern that the terminal device cannot be charged.

[0008] One of the purposes of the present disclosure is to enable wireless charging by a magnetic attraction type charging device, regardless of whether or not a charging target has a magnet.

[0009] A charging device according to one embodiment of the present disclosure is a charging device that wirelessly charges a terminal device that is placed on a placement surface and receives wirelessly transmitted power. The charging device includes a first charging coil, a magnet, and a moving mechanism. The first charging coil is configured to transmit power to the terminal device. The magnet is disposed outside the first charging coil. The moving mechanism is configured to move the first charging coil and the magnet along the placement surface in a chargeable area corresponding to the placement surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a block diagram showing an example of the configuration of a charging device according to the embodiment.

[0011] Figure 2 It is a plan view schematically showing the structure of the charging device according to the first embodiment.

[0012] Figure 3 It is a schematic representation Figure 2 A sectional view of the structure of a charging device.

[0013] Figure 4 It is a plan view schematically showing the structure of a charging device according to a second embodiment.

[0014] Figure 5 It is a schematic representation Figure 4 A sectional view of the structure of a charging device.

[0015] Figure 6 It is a plan view schematically showing the structure of a charging device according to a third embodiment.

[0016] Figure 7 It is a schematic representation Figure 6 A sectional view of the structure of a charging device.

[0017] Figure 8 It is a plan view schematically showing the structure of a charging device according to a fourth embodiment.

[0018] Fig. 9 It is a schematic representation Figure 8 A sectional view of the structure of a charging device.

[0019] Fig.10 It is a plan view schematically showing the structure of a charging device according to a fifth embodiment.

[0020] Fig.11 It is a schematic representation Fig.10 A sectional view of the structure of a charging device.

[0021] Fig.12 It is a plan view schematically showing the structure of a charging device according to a sixth embodiment.

[0022] Fig.13 It is a schematic representation Fig.12 A sectional view of the structure of a charging device.

[0023] Fig.14 It is a plan view schematically showing the structure of a charging device according to the seventh embodiment.

[0024] Fig.15 It is a schematic representation Fig.14 A sectional view of the structure of a charging device.

[0025] Fig.16 It is a plan view schematically showing the structure of a charging device according to an eighth embodiment.

[0026] Fig.17 It is a schematic representation Fig.16 A sectional view of the structure of a charging device.

[0027] Fig.18 It is a plan view schematically showing the structure of a charging device according to a ninth embodiment.

[0028] Fig.19 It is a schematic representation Fig.18 A sectional view of the structure of a charging device.

[0029] Fig. 20 It is a plan view schematically showing the structure of the charging device involved in the tenth embodiment, and is a diagram showing the structure when a magnetic member is arranged in the charging device to charge a terminal device.

[0030] Fig.21 It is a schematic representation Fig. 20 A sectional view of the structure of a charging device.

[0031] Fig. 22 It is a plan view schematically showing the structure of the charging device involved in the tenth embodiment, and is a diagram showing the structure when the terminal device is charged without configuring the magnetic member in the charging device.

[0032] Fig.23 It is a schematic representation Fig. 22 A sectional view of the structure of a charging device.

[0033] Fig.24 This is a flowchart showing an example of the operation of the charging device according to the tenth embodiment. DETAILED DESCRIPTION

[0034] Next, refer to the attached Figure 1 Embodiments of the charging device according to the present disclosure will be described.

[0035] In addition, in the description of the present disclosure, the same reference numerals are used to indicate the components having the same or substantially the same functions as the components described above with respect to the already-appeared figures, and the description is sometimes appropriately omitted. In addition, even in the case of indicating the same or substantially the same parts, the sizes and ratios of each other are sometimes indicated in different ways according to the drawings. In addition, from the perspective of ensuring the visibility of the drawings, for example, only the main components are marked with reference numerals in the description of each drawing, and even components having the same or substantially the same functions as the components described above in the already-appeared figures are sometimes not marked with reference numerals.

[0036] The charging device according to the present disclosure is a device that performs non-contact charging, that is, wireless charging, on a terminal device placed on a placement surface of the charging device. The terminal device is a terminal device (not shown) that is an example of an electronic device having a built-in battery.

[0037] The terminal device that is the charging object of the charging device is an electronic device that is configured to be driven using power from a built-in battery. The battery is configured to be charged by power wirelessly transmitted from the charging device 1. Specifically, the terminal device also has at least a power receiving unit. The power receiving unit is configured to receive power wirelessly transmitted from the charging device. The power receiving unit is, for example, an induction coil that is electromagnetically coupled to a power transmission coil (charging coil) of the charging device. The power induced by the power receiving unit is supplied to the battery. As a terminal device, various electronic devices such as smartphones, tablet terminals, audio players, mobile phones, etc. can be appropriately utilized.

[0038] Here, wireless charging refers to charging by wireless. In the present disclosure, wireless charging is described as an example of charging using magnetic induction.

[0039] As an international standard specification for wireless charging, there is the Qi specification developed by the WPC (Wireless Power Consortium). In the Qi specification, charging using low-power transmission (hereinafter referred to as "low-power charging") and charging using high-power transmission (hereinafter referred to as "high-power charging") are specified. For example, low-power charging is performed at a maximum of 5W, and high-power charging is performed at more than 15W. Low-power transmission is called BPP (Baseline Power Profile), and high-power charging is called EPP (Extended Power Profile).

[0040] In such wireless charging, the closer the charging coil of the charging device and the induction coil of the terminal device to be charged are to face each other, the more efficient the charging will be. In the Qi specification, the MPP (Magnetic Power Profile) for high-speed charging using magnets for position alignment is in the process of being standardized.

[0041] As an example, the charging coil and the induction coil are aligned using the magnetic attraction force generated between a magnet configured together with the charging coil and a magnet configured together with the induction coil in a terminal device that is the charging target.

[0042] As another example, with the terminal device placed on the upper surface of the charging device, the charging coil is moved close to the induction coil to align the charging coil with the induction coil. In this case, no magnet for alignment is provided in the terminal device.

[0043] In the present disclosure, a charging device 1 that is provided with a magnet for position alignment together with a charging coil is expressed as a "magnet-compatible charging device". In addition, a charging device 1 that is not provided with a magnet for position alignment is expressed as a "non-magnet compatible charging device" or a "BPP / EPP compatible charging device". Similarly, a terminal device that is a charging object and is provided with a magnet for position alignment together with an induction coil is expressed as a "magnet-compatible terminal device". In addition, a terminal device that is not provided with a magnet for position alignment is expressed as a "magnet-incompatible terminal device" or a "BPP / EPP compatible terminal device". Here, BPP / EPP compatibility means coping with at least one of BPP and EPP.

[0044] Among them, the magnetic force from the magnet of the magnet-compatible charging device sometimes affects the magnet-incompatible terminal device. Therefore, it is sometimes impossible to charge the magnet-incompatible terminal device through the magnet-compatible charging device. On the other hand, when charging the magnet-compatible terminal device through the magnet-incompatible charging device, there is a problem that although it is a magnet-compatible terminal device, it cannot use the high-speed charging of MPP.

[0045] In other words, in wireless charging performed by a magnet-compatible charging device having a magnet for position alignment, there is a problem that it is impossible to charge both a magnet-compatible terminal device and a magnet-incompatible terminal device.

[0046] Therefore, the present disclosure describes a charging device that is configured to be able to charge both magnet-compatible terminal devices and magnet-incompatible terminal devices.

[0047] (First Embodiment)

[0048] Figure 1 It is a block diagram showing an example of the configuration of the charging device 1 according to the embodiment.

[0049] like Figure 1 As shown, the charging device 1 includes a controller 10, a moving mechanism 20, a magnet 30, a charging coil 40, and a detection coil 50. The controller 10, the moving mechanism 20, the magnet 30, the charging coil 40, and the detection coil 50 are respectively disposed in a housing 101 (see Figure 2 )Inside.

[0050] The controller 10 is configured to control the operation of the charging device 1 . The controller 10 includes a processor 11 , a memory 13 , and a communication interface 15 .

[0051] The processor 11 controls the overall operation of the controller 10. The processor 11 realizes the functions of the detection function 111, the communication function 113, and the drive function 115 by, for example, reading a control program 131 stored in a ROM (Read Only Memory) or the like of the memory 13 and executing a program loaded into a RAM (Random Access Memory) of the memory 13.

[0052] As the processor, various processors such as a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), an ASIC (Application Specific Integrated Circuit), and a FPGA (Field Programmable Gate Array) can be used as appropriate.

[0053] In the detection function 111, the processor 11 is configured to output a signal for generating a detection magnetic field to the detection coil 50. In addition, the processor 11 is configured to determine the configuration position of the terminal device as the charging target based on the input of the echo signal from the terminal device to the detection coil 50 in response to the detection magnetic field generated by the detection coil 50.

[0054] In the communication function 113, the processor 11 is configured to communicate with the terminal device through the charging coil 40 when the charging coil 40 is moved to the configuration position of the terminal device under the control of the driving function 115. The processor 11 is configured to determine whether the terminal device as the charging target is a magnet-compatible terminal device or a magnet-incompatible terminal device through communication with the terminal device.

[0055] In the driving function 115, the processor 11 is configured to drive the charging coil 40 corresponding to the terminal device as the charging object, so that the charging coil 40 sends power. Specifically, the processor 11 controls the AC power supply (not shown) to supply AC power from the AC power supply to the charging coil 40. The charging coil 40 is configured to supply AC power to the induction coil by electromagnetic coupling with the induction coil of the terminal device. The AC power supplied to the induction coil is converted into DC power by a rectifier provided in the terminal device to charge the battery built into the terminal device. As a result, the battery of the terminal device is wirelessly charged. In addition, the AC power supply can be provided inside the charging device 1 or as an external power supply of the charging device 1.

[0056] In the driving function 115, the processor 11 is configured to drive the moving mechanism 20 to move the charging coil 40 corresponding to the terminal device as the charging target from the evacuation area 107 to the chargeable area. In addition, the processor 11 is configured to drive the moving mechanism 20 to move the charging coil 40 corresponding to the terminal device as the charging target horizontally to the charging position in the chargeable area.

[0057] Here, the retreat area 107 refers to a position outside the chargeable area below the mounting surface 105 in the direction along the mounting surface 105 (horizontal direction). The retreat area 107 is a position in the XY plane (in the horizontal direction) where the magnetic force of the magnet 30 from the retreat area 107 has a sufficiently small effect on the terminal device that is not compatible with the magnet placed on the mounting surface 105. In addition, the position where each charging coil 40 is accommodated in the retreat area 107 can be either predetermined or arbitrary.

[0058] In addition, the influence of the magnetic force from the magnet 30 is preferably small enough to be ignored, but is not limited to this. In the case where the charging device 1 is configured as an in-vehicle device, there may be a case where the size of the charging device 1 is limited. Therefore, the retreat area 107 can be set so that the influence of the magnetic force from the magnet 30 is at least smaller than the chargeable area.

[0059] In addition, the chargeable area refers to the area corresponding to the mounting surface 105. Specifically, the chargeable area refers to the area near the panel 103 in the Z-axis direction below the mounting surface 105 and facing the mounting surface 105. In other words, the chargeable area refers to the position in the Z-axis direction where wireless power can be transmitted to the power receiving unit (induction coil) of the terminal device mounted on the mounting surface 105 via the panel 103.

[0060] The charging position is a position in the chargeable area corresponding to the arrangement position of the terminal device. Typically, the charging position coincides with the horizontal position of the arrangement position, that is, the position in the XY plane viewed from the top surface.

[0061] As an example, when the charging target is a terminal device that is not compatible with magnets, the processor 11 moves the charging coil 40a (charging coil 40) from the evacuation area 107 to the charging position in the chargeable area. Here, the charging coil 40a is an example of a second charging coil.

[0062] As an example, when the charging target is a magnet-compatible terminal device, the processor 11 moves the magnet 30 and the charging coil 40b (charging coil 40) from the retreat area 107 to the charging position in the chargeable area. Here, the charging coil 40b is an example of a first charging coil.

[0063] The memory 13 can appropriately utilize various storage media and storage devices such as ROM, HDD (Hard Disk Drive), SSD (Solid State Drive), flash memory, etc. as a hardware structure. A RAM for temporarily storing data in operation is also provided in the memory 13. The memory 13 stores various data and programs used in the controller 10.

[0064] The communication interface 15 is configured to be able to communicate with a terminal device as a charging target by wireless. The communication interface 15 has a communication circuit for wireless communication as a hardware structure. As the communication circuit for wireless communication, a communication circuit corresponding to various standards such as 4G, 5G, 6G, Wi-Fi (registered trademark), Bluetooth (registered trademark), infrared communication, etc. can be appropriately used.

[0065] Figure 2 It is a plan view schematically showing the structure of the charging device 1 according to the first embodiment. Figure 2 The following illustrates a case where the charging device 1 is viewed from above. Figure 3 It is a schematic representation Figure 2 sectional view of the structure of the charging device 1. Figure 3 Example basis Figure 2 The cross section obtained along line II-II.

[0066] In the present disclosure, for example Figure 2 and Figure 3 As shown in FIG. 1 , an orthogonal coordinate system including an X-axis, a Y-axis, and a Z-axis is defined. The X-axis, the Y-axis, and the Z-axis are orthogonal to each other. The Z-axis is perpendicular to the X-axis and the Y-axis and extends in the thickness direction of the charging device 1. In addition, for each of the X-axis, the Y-axis, and the Z-axis, the positive direction is, for example, Figure 2 and Figure 3 , and the negative direction is defined by the direction of the arrow illustrated in . Similarly, the negative direction is defined by the direction opposite to the direction of the arrow. In the present disclosure, the positive direction of the Z axis is sometimes expressed as "above", "upper side" or "upper surface side". Similarly, the negative direction of the Z axis is sometimes expressed as "below", "lower side" or "lower surface side".

[0067] In addition, in the present disclosure, "parallel", "horizontal", "vertical" and "orthogonal" respectively include not only completely parallel, horizontal, vertical and orthogonal, but also include the situation that deviates from parallel, horizontal, vertical and orthogonal within the range of error. In addition, "substantially" means the same within an approximate range.

[0068] The charging device 1 includes a housing 101 and a panel 103. The combination of the housing 101 and the panel 103 has a box shape, for example. The panel 103 is attached to the upper side of the housing 101 so as to be attachable to and detachable from the housing 101.

[0069] The controller 10 , the moving mechanism 20 , the magnet 30 , the charging coil 40 , and the detection coil 50 are provided inside the housing 101 and the panel 103 .

[0070] Inside the housing 101 , the moving mechanism 20 movably supports the magnet 30 and / or the charging coil 40 as described later.

[0071] A placement surface 105 is provided on the upper surface side of the panel 103. The placement surface 105 is a region for placing the wireless charging target, that is, the terminal device, and is a region where the terminal device can be charged. In addition, the actual chargeable range of the terminal device on the placement surface 105 can be changed according to the movable range of the charging coil 40 and the compatibility between the charging coil 40 and the induction coil of the terminal device.

[0072] In this embodiment, the case where the mounting surface 105 is a region that is a part of the outer surface of the panel 103 and is a two-dimensional plane region is exemplified. That is, in this embodiment, the X-axis direction and the Y-axis direction are directions that are orthogonal to each other along the two-dimensional plane of the mounting surface 105. In addition, the Z-axis direction that is orthogonal to the X-axis direction and the Y-axis direction is set to coincide with the thickness direction of the housing 101 for description.

[0073] The moving mechanism 20 is configured to support the charging coil 40a. Figure 3Similarly, the moving mechanism 20 is configured to move the charging coil 40a between the chargeable area below the placement surface 105 and the retreat area 107 according to the control of the controller 10. The moving mechanism 20 is configured to move the charging coil 40a along the placement surface 105, that is, in the XY plane in the chargeable area according to the control of the controller 10. For example, the moving mechanism 20 has a motor for moving the charging coil 40a in each direction of the X-axis, the Y-axis, and the Z-axis.

[0074] In addition, the moving mechanism 20 is configured to support the magnet 30 and the charging coil 40b. Figure 3 As shown, the moving mechanism 20 is configured to move the magnet 30 and the charging coil 40b between the chargeable area below the placement surface 105 and the retreat area 107 according to the control of the controller 10. The moving mechanism 20 is configured to move the magnet 30 and the charging coil 40b along the placement surface 105 in the chargeable area according to the control of the controller 10. For example, the moving mechanism 20 has a motor for moving the magnet 30 and the charging coil 40b in each direction of the X-axis, the Y-axis, and the Z-axis.

[0075] As described above, the moving mechanism 20 involved in this embodiment is configured to move the group of magnet 30 and charging coil 40b and either one of the charging coil 40a from the retreat area 107 to the chargeable area and move the other horizontally in the chargeable area, such as a CD changer.

[0076] In addition, the motor for moving the charging coil 40a and the motor for moving the magnet 30 and the charging coil 40b may be a common motor or different motors. In addition, the motors for moving in the directions of the X-axis, Y-axis, and Z-axis may be a common motor or different motors in each direction.

[0077] The magnet 30 is, for example, a permanent magnet, but may also be an electromagnet. The magnet 30 is formed in a circular ring shape. In other words, the magnet 30 has a substantially cylindrical shape. The magnet 30 is arranged concentrically on the outside of the charging coil 40b. As an example, the magnet 30 is mounted on the outer periphery of the charging coil 40b. As an example, the magnet 30 is supported by the moving mechanism 20 together with the charging coil 40b.

[0078] The charging coil 40 is a coil for transmitting electric power to a terminal device placed on the placement surface 105. Figure 2 and Figure 3 As shown, the charging coil 40 includes a charging coil 40a and a charging coil 40b.

[0079] The charging coil 40a is a coil for transmitting power to a terminal device that is not compatible with magnets. Figure 2 As shown, it is formed into a hollow, substantially rectangular shape.

[0080] The charging coil 40b is a coil for transmitting power to a magnetically compatible terminal device. Figure 2 In other words, the charging coil 40b has a substantially cylindrical shape.

[0081] The detection coil 50 is a coil for detecting the configuration position of the terminal device on the mounting surface 105. The configuration position of the terminal device indicates the position of the power receiving unit (induction coil) provided in the terminal device. The configuration position of the terminal device is indicated by the position on the mounting surface 105. For example, the detection coil 50 is arranged on the inner side of the mounting surface 105 along the mounting surface 105. As an example, a plurality of detection coils 50 are arranged along the X-axis direction and the Y-axis direction in the two-dimensional plane along the mounting surface 105.

[0082] In addition, Figure 3 In the example shown, the position in the Z-axis direction of the charging coil 40 in the chargeable region below the placement surface 105 is different from the position in the Z-axis direction of each charging coil 40 in the retreat region 107, but the present invention is not limited thereto. The position in the Z-axis direction of at least one of the charging coil 40a and the charging coil 40b in the retreat region 107 may be consistent with the position in the Z-axis direction of the chargeable region. In addition, the position in the Z-axis direction of the chargeable region may be different between the charging coil 40a and the charging coil 40b.

[0083] As an example, in Figure 3 In the example shown, the charging coil 40 a may be moved horizontally on the XY plane in the chargeable area while maintaining the position in the Z-axis direction in the evacuation area 107 .

[0084] As an example, in Figure 3 In the example shown, the charging coil 40 b may be accommodated in the retreat area 107 while maintaining the position in the Z-axis direction when horizontally moving on the XY plane in the chargeable area.

[0085] As described above, the charging device 1 according to the present embodiment is configured to replace the charging coil 40 moved to the chargeable area or charging position below the placement surface 105 according to the terminal device as the charging target. Specifically, the charging coil 40 moved to the chargeable area or charging position is determined according to whether the terminal device as the charging target is magnet compatible or magnet incompatible.

[0086] According to this structure, a magnet-compatible terminal device can be charged at high speed using MPP, and a magnet-incompatible terminal device can be charged using BPP or EPP. Therefore, in the magnet-compatible charging device 1, the magnetic force from the magnet 30 can be suppressed from affecting the magnet-incompatible terminal device. Thus, in wireless charging performed by a magnet-compatible charging device having a magnet 30 for position alignment, both magnet-compatible terminal devices and magnet-incompatible terminal devices can be charged.

[0087] Hereinafter, other embodiments of the charging device 1 according to the present disclosure will be described with reference to the drawings. In the following descriptions of each embodiment, the contents overlapping with the above contents will be omitted as appropriate.

[0088] (Second Embodiment)

[0089] In this embodiment, points different from the first embodiment will be mainly described. Figure 4 It is a plan view schematically showing the structure of a charging device 1 according to the second embodiment. Figure 4 The following illustrates a case where the charging device 1 is viewed from above. Figure 5 It is a schematic representation Figure 4 sectional view of the structure of the charging device 1. Figure 5 Example basis Figure 4 The cross section obtained by the VV line.

[0090] like Figure 4 and Figure 5 As shown, the charging device 1 according to this embodiment has a charging coil 40b as the charging coil 40. That is, in this embodiment, the charging device 1 does not have a charging coil 40a for a terminal device that is not compatible with magnets. In addition, the charging device 1 does not have a moving mechanism 20 for the charging coil 40a.

[0091] The placement surface 105 of the present embodiment is provided to cover substantially the entire surface of the upper surface side of the panel 103. That is, the placement surface 105 of the present embodiment also includes the upper surface side of the panel 103, which is the range above the retreat area 107 in the first embodiment. Figure 4 In the example of FIG. 1 , the placement surface 105 is provided to cover substantially the entire surface of the upper surface side of the panel 103, but the present invention is not limited thereto. The placement surface 105 may be provided to cover substantially the entire surface in either the X-axis direction or the Y-axis direction of the upper surface side of the panel 103, or may be provided to cover a portion of the upper surface side of the panel 103 in each of the X-axis direction and the Y-axis direction.

[0092] The moving mechanism 20 of this embodiment is configured to independently support the magnet 30 and the charging coil 40b. The moving mechanism 20 is configured to move at least the charging coil 40b of the magnet 30 and the charging coil 40b along the mounting surface 105 in the chargeable area according to the control of the controller 10. Figure 5 As shown, the moving mechanism 20 is configured to move the magnet 30 between the chargeable region and the retreat region 107 provided below the chargeable region in accordance with the control of the controller 10 .

[0093] Here, the retreat area 107 involved in this embodiment refers to an area outside the chargeable area in a direction (below) intersecting the direction (horizontal direction) along the placement surface 105. In addition, the retreat area 107 refers to a position in the Z-axis direction that is below the chargeable area and where the magnetic force from the magnet 30 has a sufficiently small effect on the terminal device that is incompatible with the magnet placed on the placement surface 105.

[0094] The magnet 30 according to the present embodiment is independently supported by the moving mechanism 20 together with the charging coil 40 b .

[0095] In the driving function 115 of this embodiment, the processor 11 is configured to drive the moving mechanism 20 to move the charging coil 40b to the charging position in the chargeable area. In addition, the processor 11 is configured to move the magnet 30 to the chargeable area or the evacuation area 107 according to the terminal device.

[0096] For example, when the charging target is a terminal device that is not compatible with magnets, the processor 11 moves the charging coil 40 b to the charging position in the chargeable area. In addition, the processor 11 moves the magnet 30 from the chargeable area to the evacuation area 107 .

[0097] As an example, when the charging target is a magnet-compatible terminal device, the processor 11 moves the magnet 30 and the charging coil 40b to a charging position in the chargeable area.

[0098] In addition, the horizontal positions of the magnet 30 and the charging coil 40b, that is, the positions in the XY plane observed from the upper surface side, may be different from each other except when the magnet 30 and the charging coil 40b move in the Z-axis direction near the panel 103 below the mounting surface 105 when wireless charging is performed on a magnet-compatible terminal device.

[0099] Alternatively, the magnet 30 and the charging coil 40 b may be moved to a position in the Z-axis direction near the panel 103 below the mounting surface 105 by independently moving in at least one of the X-axis direction, the Y-axis direction, and the Z-axis direction.

[0100] Furthermore, the retreat area 107 may not be limited to the position below the placement surface 105, but may be provided at a position other than the position below the placement surface 105 in the horizontal direction as in the first embodiment. That is, the magnet 30 may be retreated only in the horizontal direction as in the first embodiment.

[0101] As described above, the charging device 1 according to the present embodiment is configured to be able to move the magnet 30 between the chargeable area and the retreat area 107 depending on whether the terminal device to be charged is magnet-compatible or magnet-incompatible.

[0102] According to this configuration, in the magnet-compatible charging device 1 that does not include the charging coil 40 a for the magnet-incompatible terminal device, it is possible to suppress the influence of the magnetic force from the magnet 30 on the magnet-incompatible terminal device.

[0103] In addition, the placement surface 105 in the charging device 1, that is, the range of the charging area in the horizontal direction can be expanded.

[0104] (Third Embodiment)

[0105] In this embodiment, points different from the first embodiment will be mainly described. Figure 6 It is a plan view schematically showing the structure of a charging device according to a third embodiment. Figure 6 The following illustrates a case where the charging device 1 is viewed from above. Figure 7 It is a schematic representation Figure 6 A sectional view of the structure of a charging device. Figure 7 Example basis Figure 6 The cross section is obtained along line VII-VII.

[0106] like Figure 6 and Figure 7 As shown, the charging device 1 according to the present embodiment includes, for example, a charging coil 40 a and a charging coil 40 b as the charging coil 40 , similarly to the first embodiment.

[0107] The placement surface 105 according to the present embodiment is provided over substantially the entire upper surface of the panel 103. That is, the placement surface 105 according to the present embodiment also includes the upper surface of the panel 103, which is the range above the retreat area 107 in the first embodiment.

[0108] The moving mechanism 20 according to this embodiment is configured as follows: Figure 7 As shown, the magnet 30 and the charging coil 40 b are moved between the chargeable region and the retreat region 107 below the placement surface 105 under the control of the controller 10 .

[0109] Here, the retreat area 107 involved in this embodiment refers to a position in the Z-axis direction below the loading surface 105, which is lower than the chargeable area and where the effect of the magnetic force from the magnet 30 on the terminal device that is incompatible with the magnet placed on the loading surface 105 is sufficiently small, similar to the second embodiment.

[0110] In the drive function 115 according to the present embodiment, the processor 11 is configured to drive the moving mechanism 20 to move the magnet 30 and the charging coil 40 b between the evacuation area 107 and the chargeable area according to the terminal device to be charged.

[0111] For example, when the charging target is a terminal device that is not compatible with magnets, the processor 11 moves the magnet 30 and the charging coil 40b from the chargeable area to the evacuation area 107. In addition, the processor 11 moves the charging coil 40a to the charging position in the chargeable area.

[0112] For example, when the charging target is a magnet-compatible terminal device, the processor 11 moves the magnet 30 and the charging coil 40b to the charging position in the chargeable area. At this time, when the charging coil 40a is located above the magnet 30 and the charging coil 40b, the processor 11 moves the charging coil 40a horizontally to another position of the charging position in the chargeable area before the magnet 30 and the charging coil 40b.

[0113] In addition, the position of the chargeable area between the charging coil 40a and the charging coil 40b in the Z-axis direction can be as follows: Figure 7 It may be consistent as shown, or it may not be consistent. It is also possible that, when the position of the rechargeable area in the Z-axis direction is consistent, in order to avoid interference when the magnet 30 and the charging coil 40b are moved horizontally in the rechargeable area, the charging coil 40a is moved in the up and down direction (Z-axis direction). In this case, the charging coil 40a can be moved in the Z-axis direction above the retreat area 107. In this way, each charging coil 40 can be appropriately moved while the rechargeable area is close to the terminal device.

[0114] In this way, the charging device 1 involved in this embodiment is configured to be able to move the magnet 30 and the charging coil 40b between the chargeable area and the retreat area 107, that is, in the up and down direction (Z-axis direction), depending on whether the terminal device serving as the charging object is magnet-compatible or magnet-incompatible.

[0115] Even with this structure, the same effects as those of the above-mentioned embodiment can be obtained.

[0116] (Fourth Embodiment)

[0117] In this embodiment, points different from the second embodiment will be mainly described. Figure 8 It is a plan view schematically showing the structure of a charging device according to a fourth embodiment. Figure 8 The following illustrates a case where the charging device 1 is viewed from above. Fig. 9 It is a schematic representation Figure 8 A sectional view of the structure of a charging device. Fig. 9 Example basis Figure 8 The cross section obtained from line IX-IX.

[0118] The magnet 30 involved in this embodiment is fixedly provided on the panel 103. That is, the charging device 1 does not have a moving mechanism 20 for the magnet 30. The magnet 30 is provided, for example, at the center of the placement surface 105. The magnet 30 is configured as an electromagnet. The magnet 30 is configured to turn on / off the generation of magnetic force according to the control of the controller 10.

[0119] In addition, the magnet 30 may not be limited to the panel 103 , but may be fixedly disposed on the housing 101 side.

[0120] The moving mechanism 20 according to the present embodiment is configured to support the charging coil 40b. Fig. 9 As shown, the moving mechanism 20 is configured to move the charging coil 40 b along the placement surface 105 in the chargeable area according to the control of the controller 10 .

[0121] Note that the charging device 1 according to the present embodiment does not include the retreat area 107 .

[0122] In the driving function 115 involved in this embodiment, the processor 11 is configured to drive the moving mechanism 20 to move the charging coil 40b to the charging position in the chargeable area. In addition, the processor 11 is configured to drive the magnet 30 to switch the generation of magnetic force of the magnet 30 on / off according to the terminal device as the charging object.

[0123] As an example, when the charging target is a terminal device that is not compatible with magnets, the processor 11 moves the charging coil 40 b to the charging position in the chargeable area and turns off the generation of the magnetic force of the magnet 30 .

[0124] As an example, when the charging target is a magnet-compatible terminal device, the processor 11 moves the charging coil 40b to the charging position in the chargeable area and turns on the generation of magnetic force of the magnet 30. That is, the processor 11 turns on the magnet 30 when the charging coil 40b moves to the charging position.

[0125] Here, the charging position for the terminal device compatible with magnets according to the present embodiment is below the position in the rechargeable area where the magnet 30 is provided. In addition, the charging position is located inside the magnet 30. On the other hand, the charging position for the terminal device incompatible with magnets is a position in the rechargeable area corresponding to the configuration position of the terminal device.

[0126] As described above, the charging device 1 according to the present embodiment is configured to be able to switch the magnet 30 configured as an electromagnet on / off according to whether the terminal device to be charged is magnet-compatible or magnet-incompatible.

[0127] This structure also provides the same effects as those of the second embodiment. In addition, since the moving mechanism 20 for the magnet 30 is not required, the charging device 1 can be simplified. This can reduce the number of components and cost of the charging device 1 and improve maintainability.

[0128] (Fifth Embodiment)

[0129] In this embodiment, points different from the first embodiment will be mainly described. Fig.10 It is a plan view schematically showing the structure of a charging device according to a fifth embodiment. Fig.10 The following illustrates a case where the charging device 1 is viewed from above. Fig.11 It is a schematic representation Fig.10 A sectional view of the structure of a charging device. Fig.11 Example basis Fig.10 The cross section obtained along the XI-XI line.

[0130] like Fig.10 and Fig.11 As shown, the charging device 1 involved in this embodiment has a loading surface 105a for a terminal device that is not compatible with magnets and a loading surface 105b for a terminal device that is compatible with magnets. In other words, the loading surface 105 involved in this embodiment is divided into a loading surface 105a for a terminal device that is not compatible with magnets and a loading surface 105b for a terminal device that is compatible with magnets. In addition, the loading surface 105a and the loading surface 10b are adjacent to each other in the direction along the loading surface 105 (horizontal direction). Here, the loading surface 105a is an example of the second loading surface. In addition, the loading surface 105b is an example of the first loading surface.

[0131] The moving mechanism 20 according to the present embodiment is configured to move the charging coil 40 a along the placement surface 105 a in a chargeable region below the placement surface 105 a in accordance with the control of the controller 10 .

[0132] Furthermore, the moving mechanism 20 is configured to move the magnet 30 and the charging coil 40 b along the placement surface 105 b in a chargeable region below the placement surface 105 b in accordance with the control of the controller 10 .

[0133] Note that the charging device 1 according to the present embodiment does not include the retreat area 107 .

[0134] As described above, the charging device 1 according to the present embodiment includes the placement surface 105 a for the magnet-incompatible terminal device and the placement surface 105 b for the magnet-compatible terminal device.

[0135] This configuration also provides the same effects as those of the first embodiment. In addition, since the withdrawal area 107 is not necessary, the placement surface 105 of the charger 1, that is, the range of the charging area in the horizontal direction can be expanded.

[0136] (Sixth Embodiment)

[0137] In this embodiment, points different from the first embodiment will be mainly described. Fig.12 It is a plan view schematically showing the structure of a charging device according to a sixth embodiment. Fig.12 The following illustrates a case where the charging device 1 is viewed from above. Fig.13 It is a schematic representation Fig.12 A sectional view of the structure of a charging device. Fig.13 Example basis Fig.12 The cross section is obtained along the XIII-XIII line.

[0138] like Fig.12 and Fig.13 As shown, the charging device 1 according to the present embodiment further includes a support platform 109. The support platform 109 is configured to support the magnet 30, the charging coil 40a, and the charging coil 40b in a fixed manner. In other words, in the charging device 1 according to the present embodiment, the magnet 30, the charging coil 40a, and the charging coil 40b are integrally configured.

[0139] The placement surface 105 according to the present embodiment is provided over substantially the entire surface of the upper surface side of the panel 103 , for example, similarly to the third embodiment.

[0140] The moving mechanism 20 according to the present embodiment is configured to support the support table 109. The moving mechanism 20 is configured to move the support table 109 along the placement surface 105 in the chargeable area according to the control of the controller 10.

[0141] Note that the charging device 1 according to the present embodiment does not include the retreat area 107 .

[0142] In the driving function 115 according to the present embodiment, the processor 11 is configured to drive the moving mechanism 20 to move the support table 109 so that the charging coil 40 b is located at the charging position.

[0143] As an example, when the charging target is a terminal device that is not compatible with magnets, the processor 11 moves the support stand 109 so that the charging coil 40b is located at the charging position.

[0144] As an example, when the charging target is a magnet-compatible terminal device, the processor 11 moves the support stand 109 so that the magnet 30 and the charging coil 40 b are located at the charging position.

[0145] In addition, Fig.13 In the example, the positions of the magnet 30, the charging coil 40a, and the charging coil 40b in the Z-axis direction are consistent, but not limited to this. The magnet 30, the charging coil 40a, and the charging coil 40b may also be fixed to the support 109 in a manner that makes the positions in the Z-axis direction different from others. For example, in order to reduce the influence of the magnetic force of the magnet 30 on the terminal device that is incompatible with the magnet, the magnet 30 may be located below at least one of the charging coil 40a and the charging coil 40b.

[0146] The number of charging coils 40 disposed on the support 109 is not limited. For example, the magnet 30 and the charging coil 40 b may be disposed between two charging coils 40 a on the support 109 .

[0147] As described above, the charging device 1 according to the present embodiment is configured to control the positions of the integrally configured magnet 30 and charging coil 40 according to whether the terminal device to be charged is magnet-compatible or magnet-incompatible.

[0148] Even with this structure, the same effects as those of the fifth embodiment can be obtained.

[0149] (Seventh Embodiment)

[0150] In this embodiment, points different from the sixth embodiment will be mainly described. Fig.14 It is a plan view schematically showing the structure of a charging device according to the seventh embodiment. Fig.14 The following illustrates a case where the charging device 1 is viewed from above. Fig.15 It is a schematic representation Fig.14 A sectional view of the structure of a charging device. Fig.15 Example basis Fig.14 The cross section obtained from the XV-XV line.

[0151] The charging device 1 according to the present embodiment includes a plurality of charging coils 40 a . Fig.14and Fig.15 The charging device 1 including two charging coils 40 a is illustrated. The plurality of charging coils 40 a are fixedly installed on a support stand 109 .

[0152] The magnet 30 and the charging coil 40b involved in this embodiment are fixedly arranged on the housing 101. As an example, the magnet 30 and the charging coil 40b are fixedly arranged in the area corresponding to the placement surface 105. In other words, the charging device 1 does not have a moving mechanism 20 for the magnet 30 and the charging coil 40b. The magnet 30 and the charging coil 40b are, for example, arranged at a position facing the center of the placement surface 105.

[0153] The magnet 30 and the charging coil 40b are not limited to the housing 101, but may be fixedly provided on the panel 103. Alternatively, one of the magnet 30 and the charging coil 40b may be provided on the housing 101, and the other may be provided on the panel 103.

[0154] The number of the plurality of charging coils 40 a may be three or more. For example, the plurality of charging coils 40 a may be arranged point-symmetrically on the support stand 109 .

[0155] As described above, the charging device 1 according to the present embodiment has the magnet 30 and the charging coil 40b fixed to the magnet-compatible terminal device, and has a plurality of charging coils 40a configured to be movable to be used for the magnet-incompatible terminal device.

[0156] Even this structure can achieve the same effect as the sixth embodiment. In addition, a terminal device that is not compatible with magnets cannot be aligned using magnetic attraction. On the other hand, by providing a plurality of charging coils 40a, the accuracy of the alignment of the configuration position of the terminal device is improved even for a terminal device that is not compatible with magnets, and the charging coil 40a can be brought closer to the induction coil.

[0157] (Eighth Embodiment)

[0158] In this embodiment, points different from the fifth embodiment will be mainly described. Fig.16 It is a plan view schematically showing the structure of a charging device according to an eighth embodiment. Fig.16 The following illustrates a case where the charging device 1 is viewed from above. Fig.17 It is a schematic representation Fig.16 A sectional view of the structure of a charging device. Fig.17 Example basis Fig.16 The cross section is obtained along line XVII-XVII.

[0159] like Fig.16 and Fig.17As shown, the charging device 1 involved in this embodiment has a structure in which a charging device 1a for a terminal device that is not compatible with magnets and a charging device 1b for a terminal device that is compatible with magnets are combined. In other words, the charging device 1a for a terminal device that is not compatible with magnets and the charging device 1b for a terminal device that is compatible with magnets are accommodated in the housing 101 of the charging device 1 involved in this embodiment.

[0160] Furthermore, the housings of the charging devices 1 a and 1 b are, for example, integrally formed as the housing 101 of the charging device 1 , but may be separate housings.

[0161] The charging device 1 a for a magnet-incompatible terminal device has various structures corresponding to the placement surface 105 a for a magnet-incompatible terminal device according to the fifth embodiment.

[0162] Likewise, the charging device 1 b for a magnet-compatible terminal device has various structures corresponding to the placement surface 105 b for a magnet-compatible terminal device according to the fifth embodiment.

[0163] Furthermore, the controller 10 and a part of the moving mechanism 20 may be shared between the charging devices 1 a and 1 b .

[0164] As described above, the charging device 1 according to the present embodiment has a structure in which the charging device 1 a for a terminal device that is not compatible with magnets and the charging device 1 b for a terminal device that is compatible with magnets are integrally formed.

[0165] Even this structure can achieve the same effect as the fifth embodiment. In addition, in the case where a charging device 1a for a terminal device that is not compatible with magnets and a charging device 1b for a terminal device that is compatible with magnets are separately manufactured, the charging device 1 can be realized more simply. In addition, in the case where any specification is changed or abolished, or a new specification is formulated, a charging device can be replaced with a charging device of another specification even after it is released.

[0166] (Ninth Embodiment)

[0167] In this embodiment, points different from the eighth embodiment will be mainly described. Fig.18 It is a plan view schematically showing the structure of a charging device according to a ninth embodiment. Fig.18 The following illustrates a case where the charging device 1 is viewed from above. Fig.19 It is a schematic representation Fig.18 A sectional view of the structure of a charging device. Fig.19 Example basis Fig.18 The cross section obtained along the XIX-XIX line.

[0168] like Fig.18 and Fig.19 As shown, the charging device 1 involved in this embodiment is a charging device 1a for a magnet-incompatible terminal device formed as an independent device. No magnet 30 is provided in the magnet-incompatible charging device 1a, so that both magnet-compatible terminal devices and magnet-incompatible terminal devices can be charged.

[0169] In addition, in a structure that uses the adsorption force between the magnet 30 and the magnet mounted on the terminal device to align the position of the charging coil 40 and the induction coil, it is difficult to completely eliminate the influence of the magnetic force caused by the magnet 30 of the magnet-compatible charging device 1b on the magnet-incompatible terminal device. Based on this, there may also be the possibility of formulating specifications for high-speed charging without magnet adsorption. In this case, by utilizing the structure of the charging device 1a involved in this embodiment to appropriately move the charging coil 40a to the charging position, it is possible to charge both the magnet-compatible terminal device and the magnet-incompatible terminal device in accordance with the high-speed charging specifications.

[0170] (Tenth Embodiment)

[0171] In this embodiment, the differences from the second embodiment are mainly described. Figure 20 to Figure 24 to explain. Fig. 20 and Fig. 22 It is a plan view schematically showing the structure of a charging device 1 according to the tenth embodiment, and illustrates a case where the charging device 1 is viewed from the upper side. Fig. 20 It is a plan view showing the structure of the charging device 1 when the magnetic member 130 is arranged in the charging device 1 and the terminal device is charged. Fig. 22 It is a plan view showing the structure of the charging device 1 when charging a terminal device without arranging the magnetic member 130 in the charging device 1 . Fig.21 It is a schematic representation Fig. 20 sectional view of the structure of the charging device 1. Fig.21 Example basis Fig. 20 The cross section obtained along line XXI-XXI. Fig.23 It is a schematic representation Fig. 22 sectional view of the structure of the charging device 1. Fig.23 Example basis Fig. 22 The cross section obtained along line XXIII-XXIII. Fig.24 This is a flowchart showing an example of the operation of the charging device 1 according to the tenth embodiment.

[0172] like Figure 20 to Figure 23As shown in FIG. 1 , the charging device 1 according to the present embodiment includes a charging coil 40 c as the charging coil 40 . In the present embodiment, the charging device 1 does not include the magnet 30 and the moving mechanism 20 for the magnet 30 .

[0173] The charging device 1 according to this embodiment has a panel 1030 instead of the panel 103. A recess 1031 (recess, mounting portion) is formed on the upper surface side of the panel 1030. The magnetic member 130 can be detachably arranged in the recess 1031. The magnetic member 130 is arranged in the recess 1031 by the user. When charging the terminal device 901 compatible with magnets, as shown in FIG. Fig. 20 and Fig.21 As shown in FIG. 1 , the user places the magnetic member 130 in the recess 1031. On the other hand, when charging the terminal device 902 that is not compatible with magnets, as shown in FIG. Fig. 22 and Fig.23 As shown, the user does not place the magnetic member 130 in the recess 1031 .

[0174] like Figure 20 to Figure 23 As shown, for example, the recess 1031 is formed in a circular shape, and the magnet member 130 is formed in a circular ring shape (ring shape). The shape of the recess 1031 and the shape of the magnet member 130 are not limited to Figure 20 to Figure 23 The shapes shown may be any shapes as long as at least a portion of the shapes are in contact with each other. Thus, the user can easily fit the magnet member 130 into the recess 1031 .

[0175] The magnetic component 130 has a magnet inside. The magnet inside the magnetic component 130 is formed into a circular ring (ring shape), for example. When the magnetic component 130 is arranged in the recess 1031, the charging coil 40c of the charging device 1 and the induction coil 905 of the terminal device 901 are aligned by the adsorption force between the internal magnet and the magnet 903 mounted on the magnet-compatible terminal device 901. That is, the shape of the magnet inside the magnetic component 130 is designed to match the shape of the magnet 903 mounted on the magnet-compatible terminal device 901.

[0176] In addition, a plurality of magnets inside the magnet member 130 may be arranged along the circumference of the magnet member 130. In this case, the arrangement position of the magnets inside the magnet member 130 is designed to match the shape of the magnet 903 mounted on the magnet-compatible terminal device 901.

[0177] The moving mechanism 20 according to the present embodiment is configured to support the charging coil 40 c . The moving mechanism 20 is configured to move the charging coil 40 c along the placement surface 105 in the chargeable area according to the control of the controller 10 .

[0178] The charging device 1 involved in this embodiment has a second detection function of detecting the magnetic member 130. In the charging device 1, that is, in the second detection function, the processor 11 detects whether the magnetic member 130 is arranged in the recess 1031 based on the output of the sensor or switch provided near the recess 1031. Here, the processor 11 realizing the second detection function is an example of a detection unit. The detection unit may also include the above-mentioned sensor and switch.

[0179] In the driving function 115 involved in this embodiment, the processor 11 is configured to drive the moving mechanism 20 to move the charging coil 40c to the charging position in the chargeable area. Specifically, the processor 11 moves the charging coil 40c according to whether the magnetic member 130 is detected. When the processor 11 detects the magnetic member 130 (S1: "Yes"), the charging coil 40c moves to a predetermined position (S2).

[0180] Here, the specified position refers to Fig.21 The position corresponds to the position of the induction coil 905 mounted on the magnet-compatible terminal device 901 as shown. The specified position is designed based on the position of the magnet inside the magnet member 130 when the magnet member 130 is configured in the recess 1031, and the position of the magnet 903 and the induction coil 905 mounted on the magnet-compatible terminal device 901. Fig.21 In the example shown, the predetermined position is below the center position on the XY plane of the recess 1031, in other words, below the center position on the XY plane of the magnetic member 130. Thus, the induction coil 905 of the magnet-compatible terminal device 901 is aligned with the charging coil 40c.

[0181] On the other hand, when the processor 11 does not detect the magnetic member 130 (S1: "No"), it determines the position of the terminal device to be charged (S3), and moves the charging coil 40c to the charging position corresponding to the determined position (S4).

[0182] The processor 11 moves the charging coil 40c and then causes the charging coil 40c to transmit power, thereby supplying power to the induction coil 905 of the terminal device that is the charging target (S5).

[0183] According to this structure, when charging the terminal device 901 compatible with magnets, the charging device 1 can easily align the position of the charging coil 40c and the induction coil 905 by using the magnetic member 130. In addition, when charging the terminal device 902 incompatible with magnets, the charging device 1 can align the position of the charging coil 40c and the induction coil 905 without configuring the magnetic member 130.

[0184] Here, the communication function between the charging device 1 and the terminal device involved in each of the above-mentioned embodiments is described. As described above, the charging coil 40 of the charging device 1 and the induction coil 905 of the terminal device can be electromagnetically coupled, and the charging device 1 and the terminal device use this electromagnetic coupling to perform communication. For example, by adjusting the load of the charging coil 40 and the induction coil 905, the charging device 1 and the terminal device transmit data as changes in the coupling field. Specifically, the charging device 1 sends data modulated by FSK (Frequency Shift Keying) to the terminal device. In addition, when the charging device 1 receives data modulated by load modulation in the terminal device, it demodulates the data. Through these processes, information can be exchanged between the charging device 1 and the terminal device.

[0185] In addition, in the charging device 1 involved in each of the above-mentioned embodiments, the charging coil 40 may also be configured to be movable only in either the X-axis direction or the Y-axis direction below the placement surface 105. That is, the charging coil 40 involved in each embodiment only needs to be configured to be movable in at least one of the X-axis direction and the Y-axis direction below the placement surface 105. In addition, it may be that one of the charging coil 40a and the charging coil 40b is movable in both the X-axis direction and the Y-axis direction, and the other is movable only in either the X-axis direction or the Y-axis direction, and the movable directions of the charging coil 40a and the charging coil 40b are different.

[0186] The charging device 1 according to each of the above-described embodiments can be used as, for example, an in-vehicle device, but is not limited thereto, and can be appropriately used as a device used on a desk, for example, various wireless chargers conforming to standards such as the Qi standard.

[0187] The program executed by the charging device 1 of the present embodiment is provided as an installable or executable file recorded on a computer-readable recording medium such as a CD-ROM, FD, CD-R, or DVD.

[0188] Alternatively, the program executed by the charging device 1 of this embodiment may be stored on a computer connected to a network such as the Internet and downloaded via the network. Alternatively, the program executed by the charging device 1 may be provided or distributed via a network such as the Internet.

[0189] Furthermore, a configuration may be adopted in which the program executed by the charging device 1 of the present embodiment is embedded in a ROM or the like in advance and provided.

[0190] According to at least one of the embodiments described above, wireless charging by a magnetic attraction type charging device can be realized regardless of whether the charging target has a magnet or not.

[0191] Several embodiments of the present invention are described, but these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the scope of the invention. These embodiments and their variations are included in the scope and purpose of the invention, and are also included in the invention described in the claims and their equivalents.

[0192] (Note)

[0193] As can be seen from the above-mentioned embodiments, the present disclosure includes the following aspects.

[0194] (1) A charging device that wirelessly charges a terminal device that is placed on a placement surface and receives wirelessly transmitted power, the charging device comprising:

[0195] a first charging coil configured to transmit electric power to the terminal device;

[0196] a magnetic member detachably disposed in a recess formed in a portion of the mounting surface; and

[0197] The moving mechanism is configured to move the first charging coil along the placement surface in a chargeable region corresponding to the placement surface.

[0198] (2) A charging device according to (1) above, wherein:

[0199] The magnetic member has a circular ring shape,

[0200] When the terminal device is a terminal device having a built-in magnet attracted by the magnetic member, the first charging coil is moved by the moving mechanism to a charging position corresponding to the inner side of the magnetic member.

[0201] (3) The charging device according to (2) above, wherein:

[0202] further comprising a detection unit configured to detect whether the magnetic member is disposed on the placement surface,

[0203] When the magnetic member is detected, the first charging coil is moved to the charging position by the moving mechanism.

[0204] Description of Reference Numerals

[0205] 1: Charging device; 101: Housing; 103, 1030: Panel; 1031: Recess; 105, 105a, 105b: Loading surface; 107: Retreat area; 109: Support table; 130: Magnetic member; 20: Moving mechanism; 30: Magnet; 40, 40a, 40b, 40c: Charging coil; 50: Detection coil.

Claims

1. A charging device for wirelessly charging a terminal device that is placed on a placement surface and receives wirelessly transmitted power, the charging device comprising: a first charging coil configured to transmit electric power to the terminal device; a magnet disposed outside the first charging coil; and The moving mechanism is configured to move the first charging coil and the magnet along the placement surface in a chargeable area corresponding to the placement surface.

2. The charging device according to claim 1, wherein: further comprising a second charging coil configured to transmit electric power to the terminal device, The moving mechanism is composed of: moving one of the first charging coil and the second charging coil within the charging area, The other of the first charging coil and the second charging coil is moved to a retreat area that is an area outside the chargeable area.

3. The charging device according to claim 2, wherein: The moving mechanism is configured to move the magnet together with the first charging coil to the retreat area.

4. The charging device according to claim 1, wherein: The moving mechanism is configured to move the first charging coil and the magnet independently of each other, and to move the magnet to a retreat area that is an area outside the chargeable area while keeping the first charging coil arranged in the chargeable area.

5. The charging device according to claim 2 or 3, wherein: The retreat region is a region outside the chargeable region in a direction along the placement surface.

6. The charging device according to any one of claims 2 to 4, wherein: The retreat region is a region outside the chargeable region in a direction intersecting a direction along the placement surface.

7. The charging device according to claim 1, wherein: further comprising a second charging coil configured to transmit electric power to the terminal device, The mounting surface includes a first mounting surface and a second mounting surface adjacent to each other in a direction along the mounting surface, The moving mechanism is composed of: moving the first charging coil and the magnet along the first mounting surface in a chargeable area corresponding to the first mounting surface, The second charging coil and the magnet are moved along the second mounting surface in a chargeable region corresponding to the second mounting surface.

8. The charging device according to claim 1, further comprising: a second charging coil configured to transmit electric power to the terminal device; and a support platform for supporting the first charging coil and the second charging coil, The moving mechanism is configured to move the support table along the placement surface in the chargeable area.

9. A charging device for wirelessly charging a terminal device disposed on a placement surface and receiving wirelessly transmitted power, the charging device comprising: a first charging coil configured to transmit electric power to the terminal device; a magnet fixedly disposed in a chargeable region corresponding to the placement surface; and The moving mechanism is configured to move the first charging coil along the placement surface in the chargeable area.

10. The charging device according to claim 9, wherein: The magnet has a ring shape, When the terminal device is a terminal device having a built-in magnet attracted by the magnet, the first charging coil is moved toward the inside of the magnet by the moving mechanism.

11. The charging device according to claim 10, wherein: The first charging coil is an electromagnet that is turned on when the first charging coil is moved toward the inner side of the magnet by the moving mechanism.

12. A charging device for wirelessly charging a terminal device that is placed on a placement surface and receives wirelessly transmitted power, the charging device comprising: a first charging coil configured to transmit electric power to the terminal device, the first charging coil being fixedly arranged in a region corresponding to the placement surface; a magnet fixedly disposed outside the first charging coil; a plurality of second charging coils, each of which is configured to transmit electric power to the terminal device; a support platform for supporting the plurality of second charging coils; as well as The moving mechanism is configured to move the support table along the placement surface in a chargeable area corresponding to the placement surface.

Images