WO2022012150A1 - 无线充电座及利用无线充电座进行充电的方法 - Google Patents

无线充电座及利用无线充电座进行充电的方法 Download PDF

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Publication number
WO2022012150A1
WO2022012150A1 PCT/CN2021/094529 CN2021094529W WO2022012150A1 WO 2022012150 A1 WO2022012150 A1 WO 2022012150A1 CN 2021094529 W CN2021094529 W CN 2021094529W WO 2022012150 A1 WO2022012150 A1 WO 2022012150A1
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WO
WIPO (PCT)
Prior art keywords
wireless charging
charging stand
transmitting coil
charged
movable plate
Prior art date
Application number
PCT/CN2021/094529
Other languages
English (en)
French (fr)
Inventor
谢红斌
Original Assignee
Oppo广东移动通信有限公司
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Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2022012150A1 publication Critical patent/WO2022012150A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction

Definitions

  • the present application relates to the technical field of wireless charging, and in particular, to a wireless charging stand and a method for charging by using the wireless charging stand.
  • Wireless charging technology is derived from wireless power transmission technology. Since the charger and the device to be charged transmit energy by magnetic field, there is no wire connection between the two.
  • the principle of wireless charging is roughly as follows:
  • the wireless charging base is provided with a transmitting coil
  • the device to be charged is provided with a receiving coil.
  • the position of the transmitter coil of the wireless charging stand is opposite to the position of the receiver coil of the device to be charged, so as to ensure smooth charging.
  • a wireless charging stand is used to charge a device to be charged, the device to be charged has a built-in receiving coil and a first UWB tag, and the wireless charging stand includes:
  • the base body has a bearing surface for placing the device to be charged, a plurality of second UWB labels are arranged in the seat body, and when the device to be charged is placed on the bearing surface, the plurality of second UWB labels
  • the tag is connected to the first UWB tag signal to locate the position of the receiving coil and generate positioning information;
  • a transmitting coil which is movably disposed in the base, and when the transmitting coil is aligned with the receiving coil, the device to be charged can be charged through the cooperation of the transmitting coil and the receiving coil;
  • a method for charging by using the above-mentioned wireless charging stand comprising:
  • the wireless charging base When it is detected that a device to be charged is placed on the bearing surface of the base body of the wireless charging base, the wireless charging base is signal-connected to the first UWB tag through the second UWB tag, so as to control the signal of the receiving coil. position, and generate positioning information;
  • the wireless charging stand drives the transmitting coil to move through the driving mechanism, so that the transmitting coil is aligned with the receiving coil;
  • the wireless charging stand charges the device to be charged.
  • FIG. 1 is a schematic structural diagram of a wireless charging stand provided by an embodiment
  • FIG. 2 is a schematic structural diagram of a device to be charged that is suitable for the wireless charging stand shown in FIG. 1 to perform wireless charging;
  • FIG. 3 is another schematic structural diagram of the device to be charged that is suitable for the wireless charging stand shown in FIG. 1 to perform wireless charging;
  • FIG. 4 is a schematic structural diagram of a driving mechanism of a wireless charging stand according to an embodiment
  • FIG. 5 is a schematic three-dimensional structural diagram of a driving mechanism of a wireless charging stand according to an embodiment
  • FIG. 6 is a schematic three-dimensional structure diagram of the drive mechanism of the wireless charging stand shown in FIG. 5, after removing the movable plate;
  • FIG. 7 is a schematic diagram of the connection structure of the mounting plate and the transmission rack in the wireless charger according to an embodiment.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with “first”, “second” may expressly or implicitly include at least one of that feature.
  • plurality means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit.
  • installed may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit.
  • a first feature "on” or “under” a second feature may be in direct contact between the first and second features, or the first and second features indirectly through an intermediary get in touch with.
  • the first feature being “above”, “over” and “above” the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature being “below”, “below” and “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.
  • the present application provides a wireless charging stand 100 for charging a device 200 to be charged.
  • the device 200 to be charged may be a mobile phone or a tablet computer, or a wristband with a wireless charging function.
  • the type of the device to be charged 200 is not limited here, as long as the device to be charged 200 has a wireless charging function, that is, the device to be charged 200 at least has a built-in receiving coil 201 .
  • the wireless charging stand 100 includes a base body 110 , a transmitting coil 120 and a driving mechanism 130 .
  • the base body 110 has a bearing surface 111 for placing the device to be charged 200 .
  • the device to be charged 200 is placed on the bearing surface 111 .
  • the device 200 to be charged is provided with a first UWB (Ultra Wideband, ultra-wideband technology) tag 202
  • the base body 110 is provided with a plurality of second UWB tags 101 .
  • a plurality of second UWB tags 101 are signal-connected to the first UWB tags 202 to locate the position of the receiving coil 201 and generate positioning information.
  • the positioning information after the positioning of the receiving coil 201 is described below by way of example. Since the receiving coil 201 and the first UWB tag 202 are installed on the device to be charged 200, the relative position between the two (hereinafter referred to as “the first relative position") is unchanged. Accordingly, a plurality of second UWB tags The relative position (hereinafter referred to as the "second relative position") between the position where the 101 is disposed in the base and the transmitting coil 120 is also determined.
  • the relative positional relationship between them in space can be obtained, and then according to the relative relationship between the multiple second UWB tags 101 and the first UWB tag 202 , as well as the first relative position and the second relative position, the relative position of the transmitting coil 120 and the receiving coil 201 can be obtained, that is, the positioning of the receiving coil 201 can be realized, and this relative position relationship is saved in the form of information, and the relative position of the receiving coil 201 can be obtained. corresponding positioning information.
  • the driving mechanism 130 is used to drive the transmitting coil 120 to move and align with the receiving coil 201 according to the positioning information, so as to avoid the problem that the coupling degree of the transmitting coil 120 and the receiving coil 201 decreases and the efficiency of electromagnetic energy transmission decreases.
  • the "alignment of the transmitting coil 120 and the receiving coil 201" referred to here includes complete alignment and alignment within a certain error range. For example, when the transmitting coil 120 and the receiving coil 201 are completely aligned, the center of the transmitting coil 120 coincides with the orthographic projection of the center of the receiving coil 201 on the bearing surface 111 . In order to ensure good electromagnetic transmission efficiency, the allowable error of "alignment of the transmitting coil 120 and the receiving coil 201" can be less than 1.5cm.
  • the projections are not coincident and the offset distance is less than 1.5cm.
  • the offset distance refers to the straight-line distance between the point of the orthographic projection of the center of the transmitting coil 120 on the bearing surface 111 to the point of the orthographic projection of the center of the receiving coil 201 on the bearing surface 111 .
  • both the first UWB tag 202 and the second UWB tag 101 adopt ultra-wideband technology, which is different from traditional communication technology, which realizes wireless transmission by sending and receiving extremely narrow pulses with nanosecond or microsecond level or less. of. Because the pulse time width is extremely short, ultra-wideband in the spectrum can be achieved with high accuracy and low power consumption, which in turn can ensure high-precision positioning without increasing power consumption.
  • the driving mechanism 130 can adjust the position of the transmitting coil 120 according to the position of the receiving coil 201 obtained by the positioning, and finally align the transmitting coil 120 with the receiving coil 201, and then transmit the electromagnetic field emitted by the coil 120.
  • the energy can be efficiently transferred to the receiving coil 201 to improve the electromagnetic energy transmission efficiency.
  • the number and position of the first UWB tags 202 in the device to be charged 200 are not limited, as long as the device to be charged 200 is placed on the bearing surface 111 , the first UWB tag 202 and the second UWB tag 101 are communicatively connected, and the device to be charged is communicatively connected.
  • the position of the receiving coil 201 in the 200 can be positioned.
  • the first UWB tag 202 of the device to be charged 200 is disposed in the area enclosed by the edge contour of the receiving coil 201 .
  • the first UWB tag 202 is disposed outside the area enclosed by the edge contour of the receiving coil 201 .
  • the first UWB tag 202 may be placed on the edge contour of the receiving coil 201 .
  • the transmitting coil 120 is integrated in a mounting plate (not shown), and the transmitting coil 120 is movably disposed in the base body 110 by sliding the mounting plate in the base body 110 .
  • the transmitting coil 120 can also be directly integrated with the mechanism that drives the transmitting coil 120 to move.
  • the driving mechanism 130 includes a first movement component 131 , a second movement component 132 and a movable plate 133 .
  • the transmitting coil 120 is arranged on the movable plate 133, and the first moving component 131 and the second moving component 132 are respectively used to drive the movable plate 133 along the first direction (refer to the X direction in FIGS. 4 and 5) and the second direction (refer to FIG. 4,
  • the first direction and the second direction are substantially vertical, so that the movable plate 133 can drive the transmitting coil 120 to move in the XY two-dimensional plane, so that the transmitting coil 120 can be accurately aligned with the receiving coil 201.
  • the plane on which the movable plate 133 moves in translation is substantially parallel to the bearing surface 111 , that is, the first direction and the second direction are substantially parallel to the bearing surface 111 , so that when the transmitting coil 120 moves with the movable plate 133 , the transmitting coil 120 reaches the bearing surface 111 .
  • the distance of the surface 111 is basically kept constant, so that the energy of the magnetic field emitted by the transmitting coil 120 at the bearing surface 111 can be stabilized within an appropriate range, so as to prevent the magnetic field energy from changing too much and affecting the charging when the transmitting coil 120 moves to different positions. stability.
  • the driving mechanism 130 may also include only one of the first motion component 131 and the second motion component 132, so as to drive the movable plate 133 to translate in the first direction or the second direction Movement so that the transmit coil 120 is aligned with the receive coil 201 in either the first direction or the second direction.
  • the device to be charged 200 when the device to be charged 200 is placed on the bearing surface 111 of the base body 110 , it is relatively easy to cause the placement position to shift in the first direction, that is, the receiving device in the device to be charged 200 .
  • the coil 201 is offset relative to the transmitting coil 120 in the first direction.
  • the second driving assembly 132 may be omitted.
  • the placement position is more likely to shift in the second direction, and the first motion component 131 can be omitted. go with.
  • the bearing surface 111 of the base body 110 is provided with a positioning structure, and the positioning structure can locate the charging device 200 along the first direction. In one direction, the receive coil 201 is aligned with the transmit coil 120 . At this time, the continuity between the center of the receiving coil 201 and the center of the transmitting coil 120 is substantially perpendicular to the first direction.
  • the receiving coil 201 in the device to be charged 200 and the transmitting coil 120 in the base 110 are aligned in the first direction without any offset, therefore, only the second driving The component 132 drives the transmitter coil 120 to move relative to the receiver coil 201 in the second direction, so that the transmitter coil 120 is aligned with the receiver coil 201, that is, the transmitter coil 120 and the receiver coil 201 are aligned in the first direction and the second direction. state. Therefore, it can be understood that the positioning structure is provided to realize the positioning of the device to be charged 200 in the first direction, and the first moving component 131 does not need to be used to drive the transmitting coil 120 to move in the first direction. Therefore, in this embodiment, it can be omitted.
  • the first movement assembly 131 when the positioning structure can position the device to be charged 200 in the second direction, it is not necessary to use the second moving component 132 to drive the transmitting coil 120 to move in the second direction, so the second movement can be omitted. Movement assembly 132 .
  • the driving mechanism 130 can still be retained to provide the first movement component 131 and the second movement
  • the assembly 132 is configured to move the transmit coil 120 in the first direction and the second direction.
  • the positioning structure and the corresponding first moving component 131 or the second moving component 132 in the driving mechanism 130 are not mutually exclusive in achieving the purpose of aligning the transmitting coil 120 and the receiving coil 201 .
  • the positioning structure is used for positioning the device to be charged 200 in the first direction, that is, when the device to be charged 200 is placed on the bearing surface 111, under the positioning action of the positioning structure, the receiving coil 201 and the transmitting coil 120 are positioned along the The first direction is roughly aligned, that is, the positioning structure has the effect of preliminary positioning. At this time, the transmitting coil 120 is moved relative to the receiving coil 201 in the device to be charged 200 under the driving of the first moving component 131 to achieve further precise positioning.
  • the first moving component 131 since the positioning structure has already performed preliminary positioning of the device to be charged 200, the first moving component 131 only needs to fine-tune the position of the transmitting coil 120 according to the positioning information, so there is no need to adjust the position of the transmitting coil 120 in the first A large movement adjustment is performed in one direction, which effectively improves the adjustment and alignment efficiency of the transmitting coil 120 .
  • At least four second UWB tags 101 are provided in the base body 110, so that the second UWB tags 101 located in different orientations can be used for signal coupling with the first UWB tags 202 of the device to be charged 200, respectively, to ensure the accuracy of positioning.
  • FIG. 1 schematically shows that four second UWB tags 101 are provided in the base body 110, three of which are located in the same installation plane 101a, and the other is not located in the installation plane 101a, so that there are multiple second UWB tags
  • the 101 communicates and locates with the first UWB tag 202 respectively, the relative coordinate information in the three-dimensional space can be obtained, so as to improve the positioning accuracy of the receiving coil 201 .
  • the installation plane 101a is parallel to the bearing surface 111, and the receiving coil 201 is located on the side of the installation plane 101a that faces away from the bearing surface 111, that is, in the direction perpendicular to the bearing surface 111, the receiving coil 201 is located on the second UWB tag 101 Therefore, the receiving coil 201 is prevented from blocking the second UWB tag 101, and signal interference is easily generated when the first UWB tag 202 and the second UWB tag 101 communicate with each other, which affects the positioning accuracy.
  • the base body 110 is provided with a control circuit board.
  • the control circuit board is provided with a power supply circuit that is electrically connected to an external power supply.
  • the transmitting coil 120 and the second UWB tag 101 are both electrically connected to the power supply circuit.
  • the external power supply can supply power to the second UWB tag 101 through the power supply circuit to ensure that the second UWB tag 101 can transmit and receive signals to communicate with the first UWB tag 202 .
  • the control circuit board is provided with a control module.
  • the control module controls the power supply circuit to supply power to the transmitting coil 120 to charge the device to be charged 200 located on the bearing surface 111 .
  • the structure of the driving mechanism 130 has various possibilities, such as screw drive or telescopic cylinder drive, as long as the transmitting coil 120 can be moved in the base 110 to be aligned with the receiving coil 201 .
  • the first motion assembly 131 and the second motion assembly 132 have the same structure, thereby reducing the types of components and facilitating the standardization of components. Improve production and assembly efficiency and reduce manufacturing costs.
  • the movable plate 133 is mounted on the second moving component 132 to move in translation along the second direction under the driving of the second moving component 132 .
  • the second movement component 132 is connected with the first movement component 131, and the first movement component 131 can drive the second movement component 132 to move in translation along the first direction.
  • the first movement component 131 includes a moving plate 1311.
  • the moving plate 1311 can move in translation along the first direction, so that when the second moving component 132 is arranged on the moving plate 1311, the moving plate 1311 can The second movement component 132 is driven to translate in the first direction. Since the movable plate 133 is mounted on the second movement component 132, when the second movement component 132 is driven by the moving plate 1311 to translate in the first direction, the movable plate 133 It will move in translation along the first direction along with the second movement component 132 .
  • a slider 1331 protrudes from the side of the movable plate 133 facing the moving plate 1311 , the slider 1331 is provided with a sliding groove 1332 , the moving plate 1311 is provided with a sliding rail 1312 , and the sliding rail 1312 Matching with the sliding groove 1332 , the movable plate 133 can slide relative to the movable plate 1311 .
  • the sliding rail 1312 extends in the second direction, so that the movable plate 133 is driven by the second moving component 132, and the movable plate 133 moves in translation along the sliding rail 1312 relative to the movable plate 1311 in the second direction, thereby setting and moving
  • the transmitting coil 120 of the board 133 can move in the second direction, thereby adjusting the relative position of the transmitting coil 120 and the device to be charged 200 located on the bearing surface 111 .
  • the transmitting coil 120 moves relative to the receiving coil 201 in the first direction. It can be seen that, with this structure, the transmitting coil 120 can move relative to the receiving coil 201 in both the first direction and the second direction, and finally achieve alignment of the two, so as to improve the electromagnetic energy transmission efficiency.
  • the sliding block 1331 may be integrally formed with the movable plate 133, or may be provided separately, and connected together by a connecting structure such as a buckle or a screw.
  • the second moving assembly 132 includes a transmission rack 1321 , a meshing wheel 1322 and a driving motor 1323 .
  • the transmission rack 1321 is connected with the movable plate 133 , and the transmission rack 1321 can be integrally formed with the movable plate 133 , or can be separately arranged and connected together by a connection structure such as a buckle or a screw.
  • the meshing wheel 1322 is meshed with the transmission rack 1321 , and the meshing wheel 1322 can drive the transmission rack 1321 to reciprocate under the driving of the driving motor 1323 , so that the transmission rack 1321 drives the movable plate 133 to move in the base body 110 .
  • a reduction gear set 1324 is arranged between the output shaft of the driving motor 1323 and the meshing wheel 1322.
  • the reduction gear set 1324 changes the transmission ratio transmitted from the output shaft to the meshing wheel 1322 to ensure that the meshing wheel 1322 has Sufficient meshing force can stably engage the drive rack 1321 to move back and forth, so that the drive gear drives the movable plate 133 to move, and finally aligns the transmitter coil 120 with the receiver coil 201 to improve the electromagnetic energy transmission efficiency.
  • Another embodiment of the present application provides a method for charging by using the above-mentioned wireless charging stand 100, and the method includes:
  • the wireless charging stand 100 When it is detected that the device to be charged 200 is placed on the bearing surface 111 of the base body 110 of the wireless charging stand 100 , the wireless charging stand 100 is signal-connected to the first UWB tag 202 through the second UWB tag 101 to determine the position of the receiving coil 201 . Perform positioning and generate positioning information.
  • the device to be charged 200 is provided with a first UWB label 202 inside, so that when the device to be charged 200 is in a charging position relative to the base 110 , for example, the device to be charged 200 is placed on the bearing surface of the base 110 .
  • the wireless charging stand 100 can know the position of the receiving coil 201.
  • a sensor is provided on the bearing surface 111 of the base body 110 , and the sensor is used to sense whether the device to be charged 200 is placed on the bearing surface 111 .
  • the type of the sensor may be a pressure sensor, which uses the pressure change of the device to be charged 200 placed on the bearing surface 111 to determine whether the device to be charged 200 is placed on the bearing surface 111 .
  • the sensor may also be an infrared sensor or a distance sensor.
  • the device to be charged 200 blocks the sensor, and the sensor can detect the device to be charged 200 .
  • the type of sensor is not limited here.
  • the positioning information after the positioning of the receiving coil 201 is described below by way of example. Since the receiving coil 201 and the first UWB tag 202 are installed on the device to be charged 200, the relative position between the two (hereinafter referred to as “the first relative position") is unchanged. Accordingly, a plurality of second UWB tags The relative position (hereinafter referred to as the "second relative position") between the position where the 101 is disposed in the base and the transmitting coil 120 is also determined.
  • the relative positional relationship between them in space can be obtained, and then according to the relative relationship between the multiple second UWB tags 101 and the first UWB tag 202 , as well as the first relative position and the second relative position, the relative position of the transmitting coil 120 and the receiving coil 201 can be obtained, that is, the positioning of the receiving coil 201 can be realized, and this relative position relationship is saved in the form of information, and the relative position of the receiving coil 201 can be obtained. corresponding positioning information.
  • the wireless charging stand 100 drives the transmitting coil 120 to move through the driving mechanism 130 , so that the transmitting coil 120 is aligned with the receiving coil 201 .
  • the "alignment of the transmitting coil 120 and the receiving coil 201" involved in this application includes complete alignment and alignment within a certain error range.
  • the center of the transmitting coil 120 coincides with the orthographic projection of the center of the receiving coil 201 on the bearing surface 111.
  • the allowable error of "alignment of the transmitting coil 120 and the receiving coil 201" can be less than 1.5cm.
  • the projections are not coincident and the offset distance is less than 1.5cm.
  • the offset distance refers to the straight-line distance between the point of the orthographic projection of the center of the transmitting coil 120 on the bearing surface 111 to the point of the orthographic projection of the center of the receiving coil 201 on the bearing surface 111 .
  • the wireless charging stand 100 charges the device to be charged 200 .
  • the transmitting coil 120 is aligned with the receiving coil 201 under the driving of the driving mechanism 130, after the transmitting coil 120 is energized, the transmitting coil 201 converts electrical energy into magnetic energy, so that the receiving coil 201 generates current under the changing magnetic field, to charge the device 200 to be charged.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

一种无线充电座及利用无线充电座进行充电的方法，该无线充电座（100）用于给待充电设备（200）充电，待充电设备（200）内置有接收线圈（201）和第一UWB标签（202），无线充电座（100）包括座体（110）、发射线圈（120）和驱动机构（130），座体（110）内设有与第一UWB标签（202）信号连接的第二UWB标签（101），无线充电座（100）通过第二UWB标签（101）与第一UWB标签（202）信号连接，以对待充电设备（200）的接收线圈（201）进行定位，发射线圈（120）可移动地设置于座体（110）内，对待充电设备（200）进行充电；驱动机构（130）用于根据接收线圈（201）的位置调整发射线圈（120）在座体（110）内的位置，使得发射线圈（120）与待充电设备（200）内的接收线圈（201）对准。

Description

无线充电座及利用无线充电座进行充电的方法 技术领域
本申请涉及无线充电技术领域，特别是涉及无线充电座及利用无线充电座进行充电的方法。
背景技术
无线充电技术源于无线电能传输技术，由于充电器与待充电装置之间以磁场传送能量，两者之间不用电线连接。其实现无线充电的原理大致如下：
无线充电座设有发射线圈，待充电装置设有接收线圈。当对待充电装置进行无线充电的时候，无线充电座的发射线圈与待充电装置的接收线圈的位置相对，以保证顺利充电。
然而，当用户将待充电装置摆放在无线充电座上时，经常会发生待充电装置的接收线圈的摆放位置与无线充电座的发射线圈发生偏离的情况。发生此情况后，由于发射线圈和接收线圈的耦合程度下降，导致电磁能量传输的效率下降，发射线圈需要提供更多的能量才能维持接收线圈的充电功率，这样便会导致无线充电座发热，对系统稳定工作及充电速度造成影响。而且，当待充电装置摆放位置偏出发射线圈的充电区域较大距离时，将会导致无线充电座充电失败或触发失败导致无法充电等情况。
发明内容
基于此，有必要提供一种无线充电座及利用无线充电座进行充电的方法。
一种无线充电座，用于给待充电设备充电，所述待充电设备内置有接收线圈和第一UWB标签，所述无线充电座包括：
座体，具有用于放置所述待充电设备的承载面，所述座体内设有多个第二UWB标签，当所述待充电设备放置于所述承载面时，所述多个第二UWB 标签与所述第一UWB标签信号相连，以对所述接收线圈的位置进行定位，并生成定位信息；
发射线圈，可移动地设置于所述座体内，当所述发射线圈与所述接收线圈对准时，通过所述发射线圈与所述接收线圈的配合，能够对所述待充电设备进行充电；
驱动机构，所述驱动机构用于根据所述定位信息驱使所述发射线圈移动并与所述接收线圈对准。
一种利用上述无线充电座进行充电的方法，该方法包括：
在检测到所述无线充电座的座体的承载面上放置有待充电设备时，所述无线充电座通过所述第二UWB标签与所述第一UWB标签信号相连，以对所述接收线圈的位置进行定位，并生成定位信息；
根据所述定位信息，所述无线充电座通过所述驱动机构驱使所述发射线圈移动，以使得所述发射线圈与所述接收线圈对准；
通过所述发射线圈与所述接收线圈的配合，所述无线充电座对待充电设备进行充电。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为一实施例提供的无线充电座的结构示意图；
图2为适用于图1示出的无线充电座进行无线充电的待充电设备的结构示意图；
图3为适用于图1示出的无线充电座进行无线充电的待充电设备的另一种结构示意图；
图4为一实施例的无线充电座的驱动机构的结构示意图；
图5为一实施例的无线充电座的驱动机构的立体结构示意图；
图6为图5示出的无线充电座的驱动机构，去除活动板后的立体结构示意图；
图7为一实施例的无线充电器中，安活动板及传动齿条的连接结构示意图。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图对本发明的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受下面公开的具体实施例的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接 相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
结合图1和图2所示，本申请提供一种无线充电座100，用于给待充电设备200充电，待充电设备200可以是手机或平板电脑，也可以是具有无线充电功能的手环。对于待充电设备200的类型，在此不做限定，只要待充电设备200具备无线充电功能即可，也就是说，待充电设备200至少内置有接收线圈201。
继续参阅图1和图4所示，无线充电座100包括座体110、发射线圈120和驱动机构130。其中，座体110具有用于放置待充电设备200的承载面111，在需要利用无线充电座100对待充电设备200进行充电时，待充电设备200放置于该承载面111上。
该实施例中，待充电设备200设有第一UWB(Ultra Wideband，超宽带技术)标签202，座体110内设有多个第二UWB标签101，当待充电设备200放置于承载面111时，多个第二UWB标签101与第一UWB标签202信号相连，以对接收线圈201的位置进行定位，并生成定位信息。
为了便于理解，下面以举例的形式对接收线圈201定位后的定位信息加以说明。由于接收线圈201和第一UWB标签202安装至待充电设备200后，两者之间的相对位置(下称为“第一相对位置”)是不变的，相应地，多个第二UWB标签101设置在座体内的位置与发射线圈120之间的相对位置(下称为“第二相对位置”)也是确定的。而多个第二UWB标签101与第一UWB标签202信号耦合后，能够将获得彼此之间在空间上的相对位置关系，进而根据多个第二UWB标签101与第一UWB标签202的相对关系，以及第一相对位置和第二相对位置，便可以获得发射线圈120和接收线圈201的相对位置，也即实现对接收线圈201的定位，将这种相对位置关系以信息形式保存，获得与之对应的定位信息。
驱动机构130用于根据定位信息驱使发射线圈120移动并与接收线圈201对准，从而避免了发射线圈120和接收线圈201的耦合程度下降而导致电磁能量传输的效率下降的问题。这里所涉及的“发射线圈120与接收线圈201对准”包括完全对准以及在一定误差范围内的对准。例如，发射线圈120与接收线圈201完全对准时，发射线圈120的中心与接收线圈201的中心在承载面111上的正投影重合。为了确保良好的电磁传输效率，“发射线圈120与接收线圈201对准”能够允许的误差可以是小于1.5cm，此时，发射线圈120的中心与接收线圈201的中心在承载面111上的正投影不重合，且偏移距离小于1.5cm。该偏移距离是指发射线圈120的中心在承载面111上的正投影的点，到接收线圈201的中心在承载面111上的正投影的点之间的直线距离。
需要说明的是，第一UWB标签202和第二UWB标签101均采取超宽带技术，不同于传统的通信技术，它通过发送和接收具有纳秒或微秒级以下的极窄脉冲来实现无线传输的。由于脉冲时间宽度极短，因此可以实现频谱上的超宽带，其精度高，功耗低，继而能够确保高精度定位的情况下，不会增加耗电量。
本申请的无线充电座100，只需要将待充电的待充电设备200放置于承载面111，座体110内的第二UWB标签101和待充电设备200内的第一UWB 标签202进行信号耦合，对接收线圈201的位置进行定位，驱动机构130便可以根据定位获得的接收线圈201的位置，调整发射线圈120的位置，最终使得发射线圈120与接收线圈201对准，进而发射线圈120发出的电磁能量能够高效地传递至接收线圈201，以提高电磁能量传输效率。
待充电设备200内的第一UWB标签202的数量和位置不受限制，只要待充电设备200放置于承载面111时，第一UWB标签202和第二UWB标签101之间通信连接，对待充电设备200内的接收线圈201的位置进行定位即可。例如，结合图2所示，待充电设备200的第一UWB标签202设置在接收线圈201的边缘轮廓所围合的区域内。再例如，结合图3所示，第一UWB标签202设置在接收线圈201的边缘轮廓围合的区域外。在其它实施方式中，可以将第一UWB标签202设置在接收线圈201的边缘轮廓上。
在一些实施例中，发射线圈120集成在安装板(图未示)内，通过将安装板滑动设置在座体110的方式，实现发射线圈120可移动地设置在座体110内。
在其它一些实施方式中，发射线圈120也可以直接集成于驱使发射线圈120移动的机构上。
例如，结合图4和图5所示，驱动机构130包括第一运动组件131、第二运动组件132和活动板133。发射线圈120设置于活动板133，第一运动组件131和第二运动组件132分别用于驱使活动板133沿第一方向(参阅图4、5中X方向)和第二方向(参阅图4、5中Y方向)平移运动，第一方向和第二方向大致垂直，从而使得活动板133能够带动发射线圈120在X-Y二维平面内移动，以便发射线圈120能够精准地与接收线圈201对准。
活动板133平移运动所在平面与承载面111大致平行，也就是说，第一方向和第二方向均与承载面111大致平行，从而在发射线圈120随活动板133移动时，发射线圈120到承载面111的距离基本保持不变，以将发射线圈120所发出的磁场在承载面111处的能量大小稳定在合适范围内，避免发射线圈120移动至不同位置时，磁场能量变化过大而影响充电稳定性。
需要说明的是，在一些实施例中，驱动机构130也可以是只包括第一运动组件131和第二运动组件132其中一个，以此实现在第一方向或第二方向上驱使活动板133平移运动，从而使得发射线圈120与接收线圈201在第一方向或第二方向上对准。例如，在一些实施方式中，在将待充电设备200放置于座体110的承载面111上时，在第一方向上比较容易产生放置位置偏移的情形，也即待充电设备200内的接收线圈201在第一方向上相对发射线圈120偏移，此时，仅需要借助第一运动组件131驱使发射线圈120沿第一方向移动，使得发射线圈120与接收线圈201对准即可，因此，该实施方式中，第二驱动组件132可以省去。相应的，在另一些实施例中，在将待充电设备200放置于座体110的承载面111上时，在第二方向上比较容易产生放置位置偏移的情形，第一运动组件131可以省去。
座体110的承载面111设置有定位结构，该定位结构能够沿第一方向对待充电设备200定位，确切的说，该定位结构的设置，待充电设备200放置于承载面111上时，在第一方向上，接收线圈201与发射线圈120对准。此时，接收线圈201的中心与发射线圈120的中心的连续大致与该第一方向垂直。该实施例中，由于定位结构使得待充电设备200内的接收线圈201与座体110内的发射线圈120在第一方向上处于对准状态而不存在偏移，因此，只需要通过第二驱动组件132驱使发射线圈120沿第二方向相对接收线圈201移动，使得发射线圈120与接收线圈201对准，即可使得发射线圈120与接收线圈201在第一方向和第二方向上均处于对准状态。由此，可以理解地，设置定位结构实现对待充电设备200的第一方向上定位，在第一方向上便无需再利用第一运动组件131驱使发射线圈120移动，从而该实施方式中，可以省略第一运动组件131。相应地，在另一些实施方式中，定位结构能够沿第二方向对待充电设备200进行定位时，在第二方向上便无需利用第二运动组件132驱使发射线圈120移动，因而，可以省略第二运动组件132。
需要说明的是，在承载面111上设置定位结构来实现对待充电设备200在第一方向或第二方向上定位的实施例中，仍可保留驱动机构130设置第一 运动组件131和第二运动组件132的结构，以对发射线圈120在第一方向和第二方向上移动。确切的说，定位结构与驱动机构130中相应地第一运动组件131或第二运动组件132在实现发射线圈120与接收线圈201对准的目的上是互不排斥的。
为便于理解，下面仅以定位结构在第一方向上对待充电设备200起到定位作用为例加以说明。
定位结构用于在第一方向上对待充电设备200进行定位，也就是说，在待充电设备200放置于承载面111上时，在定位结构的定位作用下，接收线圈201与发射线圈120在沿第一方向上大致对准，也即，定位结构起到初步定位的效果。此时，发射线圈120在第一运动组件131的带动下相对待充电设备200内的接收线圈201移动，实现更进一步地精准定位。通过这种结构设置，由于定位结构已经对待充电设备200进行了初步定位，因此，第一运动组件131只需要根据定位信息对发射线圈120的位置进行微调即可，从而无需对发射线圈120在第一方向上进行大幅移动调整，有效提高对发射线圈120的调节对准效率。
在一些实施方式中，座体110内设有至少4个第二UWB标签101，这样便可以利用位于不同方位的第二UWB标签101分别与待充电设备200的第一UWB标签202进行信号耦合，以确保定位的精度。
设置于座体110内的第二UWB标签101中，至少有一个第二UWB标签101与其他第二UWB标签101位于不同的安装平面内。例如，图1示意性示出了座体110内设有4个第二UWB标签101，其中三个位于同一安装平面101a，另一个不位于该安装平面101a内，从而在多个第二UWB标签101分别与第一UWB标签202进行通信定位后，能够获得三维空间上的相对坐标信息，以提高对接收线圈201的定位精度。
安装平面101a与承载面111平行，接收线圈201位于安装平面101a的背向承载面111的一侧，也就是说，在沿垂直于承载面111的方向上，接收线圈201位于第二UWB标签101的下方，从而避免接收线圈201遮挡第二 UWB标签101，容易在第一UWB标签202和第二UWB标签101互相通信时产生信号干扰，影响定位精度。
座体110内设有控制电路板，控制电路板设有与外部电源电性连接的电源电路，发射线圈120与第二UWB标签101电性均连接于电源电路，当控制电路板接通外部电源时，外部电源能够经电源电路向第二UWB标签101供电，以确保第二UWB标签101能够进行信号的发射和接收，以与第一UWB标签202进行通信。
控制电路板设有控制模块，当驱动机构130驱使发射线圈120移动至与接收线圈201对准时，控制模块控制电源电路向发射线圈120供电，以对位于承载面111上的待充电设备200进行充电。
需要说明的是，驱动机构130的结构具有多种可能，例如采取螺杆传动或伸缩气缸传动的结构形式，只要能够实现发射线圈120在座体110内移动至与接收线圈201对准即可。
在驱动机构130包括第一运动组件131和第二运动组件132的实施例中，第一运动组件131与第二运动组件132的结构相同，从而可以减少零部件的类型，便于零部件的标准化，提升生产及装配效率，降低制造成本。
结合图5和图6所示，活动板133安装于第二运动组件132，以在第二运动组件132的带动下沿第二方向平移运动。
第二运动组件132与第一运动组件131相连接，且第一运动组件131能够驱使第二运动组件132沿第一方向平移运动。例如，第一运动组件131包括移动板1311，第一运动组件131工作时，移动板1311能够沿第一方向平移运动，从而将第二运动组件132设置在该移动板1311时，移动板1311可以带动第二运动组件132沿第一方向平移运动，由于活动板133安装在第二运动组件132上，从而第二运动组件132在移动板1311的带动下沿第一方向平移运动时，活动板133将随着第二运动组件132一起沿第一方向平移运动。
结合图6和图7所示，活动板133的朝向移动板1311的一侧凸设有滑块1331，滑块1331上开设有滑槽1332，移动板1311上设有滑轨1312，滑轨 1312与滑槽1332相配合，从而使得活动板133能够相对移动板1311相对滑动。需要说明的是，滑轨1312沿第二方向延伸，从而活动板133在第二运动组件132的驱使下，活动板133沿滑轨1312相对移动板1311沿第二方向平移运动，进而设置与活动板133的发射线圈120能够在第二方向上移动，进而调整发射线圈120与位于承载面111上的待充电设备200的相对位置。相应地，在第一运动组件131的驱使下，发射线圈120相对接收线圈201在第一方向上移动。由此可知，通过这种结构，在第一方向上和第二方向上，发射线圈120均能够相对接收线圈201移动，最终实现两者对准，以提高电磁能量传输效率。
滑块1331可以是与活动板133一体成型，也可以是分体设置，通过卡扣或螺钉等连接结构连接在一起。
继续参阅图6和图7所示，第二运动组件132包括传动齿条1321、啮合轮1322和驱动电机1323。
传动齿条1321与活动板133相连接，传动齿条1321可以是与活动板133一体成型，也可以是分体设置，通过卡扣或螺钉等连接结构连接在一起。
啮合轮1322与传动齿条1321相啮合，且啮合轮1322能够在驱动电机1323的驱使带动传动齿条1321往复移动，以使得传动齿条1321带动活动板133在座体110内移动。
驱动电机1323的输出轴与啮合轮1322之间设有减速齿轮组1324，当驱动电机1323的输出轴转动时，减速齿轮组1324改变输出轴传递至啮合轮1322的传动比，确保啮合轮1322具有足够的啮合力来稳定地啮合传动齿条1321往复移动，进而使得传动齿轮带动活动板133移动，最终使得发射线圈120与接收线圈201对准，提高电磁能量传输效率。
本申请的另一实施例提供一种利用上述无线充电座100进行充电的方法，该方法包括：
在检测到无线充电座100的座体的110的承载面111上放置有待充电设备200时，无线充电座100通过第二UWB标签101与第一UWB标签202 信号相连，以对接收线圈201的位置进行定位，并生成定位信息。
可以理解的是，这里的待充电设备200的内部设置有第一UWB标签202，从而在待充电设备200相对座体110位于充电的位置时，例如待充电设备200置于座体110的承载面111上时，通过第二UWB标签101与第一UWB标签202之间信号耦合，无线充电座100能够获知接收线圈201的位置。
对于座体110的承载面111上是否放置有待充电设备200的检测方式具有多种可能。例如，在一些实施例中，座体110的承载面111上设置有传感器，利用传感器来感应承载面111上是否放置有待充电设备200。传感器的类型可以是压力传感器，利用待充电设备200放置在承载面111上的压力变化，判断承载面111上是否放置有待充电设备200。传感器还可以是红外传感器或距离传感器，在座体110的承载面111上放置有待充电设备200时，待充电设备200遮挡传感器，传感器能够检测到待充电设备200。对于传感器的类型，在此不做限定。
为了便于理解，下面以举例的形式对接收线圈201定位后的定位信息加以说明。由于接收线圈201和第一UWB标签202安装至待充电设备200后，两者之间的相对位置(下称为“第一相对位置”)是不变的，相应地，多个第二UWB标签101设置在座体内的位置与发射线圈120之间的相对位置(下称为“第二相对位置”)也是确定的。而多个第二UWB标签101与第一UWB标签202信号耦合后，能够将获得彼此之间在空间上的相对位置关系，进而根据多个第二UWB标签101与第一UWB标签202的相对关系，以及第一相对位置和第二相对位置，便可以获得发射线圈120和接收线圈201的相对位置，也即实现对接收线圈201的定位，将这种相对位置关系以信息形式保存，获得与之对应的定位信息。
根据定位信息，无线充电座100通过驱动机构130驱使发射线圈120移动，以使得发射线圈120与接收线圈201对准。
需要说明的是，本申请中所涉及的“发射线圈120与接收线圈201对准”包括完全对准以及在一定误差范围内的对准。例如，发射线圈120与接收线 圈201完全对准时，发射线圈120的中心与接收线圈201的中心在承载面111上的正投影重合。为了确保良好的电磁传输效率，“发射线圈120与接收线圈201对准”能够允许的误差可以是小于1.5cm，此时，发射线圈120的中心与接收线圈201的中心在承载面111上的正投影不重合，且偏移距离小于1.5cm。该偏移距离是指发射线圈120的中心在承载面111上的正投影的点，到接收线圈201的中心在承载面111上的正投影的点之间的直线距离。
通过发射线圈120与接收线圈201的配合，无线充电座100对待充电设备200进行充电。具体地，由于发射线圈120在驱动机构130的驱使下与接收线圈201对准，从而在发射线圈120通电后，发射线圈201将电能转换为磁能，这样接收线圈201在变化的磁场下产生电流，以对待充电设备200进行充电。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (20)

  1. 一种无线充电座，用于给待充电设备充电，所述待充电设备内置有接收线圈和第一UWB标签，其特征在于，所述无线充电座包括：
    座体，具有用于放置所述待充电设备的承载面，所述座体内设有多个第二UWB标签，当所述待充电设备放置于所述承载面时，所述多个第二UWB标签与所述第一UWB标签信号相连，以对所述接收线圈的位置进行定位，并生成定位信息；
    发射线圈，可移动地设置于所述座体内，当所述发射线圈与所述接收线圈对准时，通过所述发射线圈与所述接收线圈的配合，能够对所述待充电设备进行充电；
    驱动机构，所述驱动机构用于根据所述定位信息驱使所述发射线圈移动并与所述接收线圈对准。
  2. 根据权利要求1所述的无线充电座，其特征在于，所述座体内设有至少4个所述第二UWB标签。
  3. 根据权利要求2所述的无线充电座，其特征在于，设置于所述座体内的第二UWB标签中，至少有一个第二UWB标签与其他第二UWB标签位于不同的安装平面内，所述安装平面与所述承载面平行，所述接收线圈位于所述安装平面的背向所述承载面的一侧。
  4. 根据权利要求1所述的无线充电座，其特征在于，所述座体内设有控制电路板，所述控制电路板设有与外部电源电性连接的电源电路，所述发射线圈与所述第二UWB标签均电性连接于所述电源电路，当所述控制电路板接通外部电源时，所述外部电源经所述电源电路向所述第二UWB标签供电。
  5. 根据权利要求4所述的无线充电座，其特征在于，所述控制电路板设有控制模块，当所述驱动机构驱使所述发射线圈移动至与所述接收线圈对准时，所述控制模块控制电源电路向所述发射线圈供电，以对位于所述承载面上的待充电设备进行充电。
  6. 根据权利要求5所述的无线充电座，其特征在于，所述驱动机构包括 第一运动组件和活动板，所述第一运动组件用于驱使所述活动板沿第一方向平移运动，且所述活动板平移运动所在平面与所述承载面大致平行，所述发射线圈设置于所述活动板。
  7. 根据权利要求6所述的无线充电座，其特征在于，所述驱动机构包括第二运动组件，所述第二运动组件用于驱使所述活动板沿第二方向平移运动，且所述活动板平移运动所在平面与所述承载面大致平行，所述发射线圈设置于所述活动板。
  8. 根据权利要求7所述的无线充电座，其特征在于，所述第一方向与所述第二方向相垂直。
  9. 根据权利要求7所述的无线充电座，其特征在于，所述第一运动组件与所述第二运动组件的结构相同。
  10. 根据权利要求7所述的无线充电座，其特征在于，所述活动板安装于所述第二运动组件，以在第二运动组件的带动下沿第二方向平移运动，所述第二运动组件与所述第一运动组件相连接，且所述第一运动组件能够驱使所述第二运动组件沿第一方向平移运动。
  11. 根据权利要求10所述的无线充电座，其特征在于，所述第一运动组件包括移动板，所述第一运动组件工作时，所述移动板能够沿第一方向平移运动，所述第二运动组件设置于所述移动板。
  12. 根据权利要求11所述的无线充电座，其特征在于，所述活动板的朝向所述移动板的一侧凸设有滑块，所述滑块上开设有滑槽，所述移动板上设有滑轨，所述滑轨与所述滑槽相配合。
  13. 根据权利要求12所述的无线充电座，其特征在于，所述滑块与所述活动板一体成型。
  14. 根据权利要求12所述的无线充电座，其特征在于，所述滑块与所述活动板通过卡扣或螺钉相连接。
  15. 根据权利要求7所述的无线充电座，其特征在于，所述第二运动组件包括传动齿条、啮合轮和驱动电机，所述传动齿条与所述活动板相连接， 所述啮合轮与所述传动齿条相啮合，且所述啮合轮能够在所述驱动电机的驱使下啮合传动所述传动齿条往复移动，以使得所述传动齿条带动所述活动板在所述座体内移动。
  16. 根据权利要求15所述的无线充电座，其特征在于，所述传动齿条与所述活动板一体成型。
  17. 根据权利要求15所述的无线充电座，其特征在于，所述传动齿条与所述活动板通过卡扣或螺钉相连接。
  18. 根据权利要求15所述的无线充电座，其特征在于，所述驱动电机的输出轴与所述啮合轮之间设有减速齿轮组，当所述驱动电机的输出轴转动时，所述减速齿轮组改变所述输出轴传递至所述啮合轮的传动比。
  19. 根据权利要求1所述的无线充电座，其特征在于，当所述驱动机构驱使所述发射线圈移动至与所述接收线圈对准时，所述发射线圈的中心与所述接收线圈的中心在承载面上的正投影的直线距离小于1.5cm。
  20. 一种利用权利要求1-19任一项所述无线充电座进行充电的方法，其特征在于，该方法包括：
    在检测到所述无线充电座的座体的承载面上放置有待充电设备时，所述无线充电座通过所述第二UWB标签与所述第一UWB标签信号相连，以对所述接收线圈的位置进行定位，并生成定位信息；
    根据所述定位信息，所述无线充电座通过所述驱动机构驱使所述发射线圈移动，以使得所述发射线圈与所述接收线圈对准；
    通过所述发射线圈与所述接收线圈的配合，所述无线充电座对待充电设备进行充电。
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