WO2020011072A1 - 电子设备、无线充电设备和无线充电方法 - Google Patents

电子设备、无线充电设备和无线充电方法 Download PDF

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Publication number
WO2020011072A1
WO2020011072A1 PCT/CN2019/094482 CN2019094482W WO2020011072A1 WO 2020011072 A1 WO2020011072 A1 WO 2020011072A1 CN 2019094482 W CN2019094482 W CN 2019094482W WO 2020011072 A1 WO2020011072 A1 WO 2020011072A1
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WIPO (PCT)
Prior art keywords
coil
sub
transmitting
receiving coil
wireless charging
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PCT/CN2019/094482
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English (en)
French (fr)
Inventor
张军
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Priority to EP19834687.6A priority Critical patent/EP3823134A4/en
Publication of WO2020011072A1 publication Critical patent/WO2020011072A1/zh
Priority to US17/144,005 priority patent/US11527914B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; 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—ELECTRIC POWER NETWORKS; 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
    • H02J7/025—
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; 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
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H02J50/402—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas

Definitions

  • Embodiments of the present disclosure relate to the field of charging technologies, and in particular, to an electronic device, a wireless charging device, and a wireless charging method.
  • wireless charging technology With the development of wireless charging technology, the application of wireless charging function in terminal equipment is becoming more and more popular.
  • One of the main technical development directions of the wireless charging technology currently applied to smart terminal devices is to increase the charging power, that is, the wireless fast charging technology, which can shorten the charging time of the terminal device, thereby improving the charging experience of the user.
  • Embodiments of the present disclosure provide an electronic device, a wireless charging device, and a wireless charging method to solve the problem of temperature rise of the device during the wireless charging process in the related art.
  • an electronic device including:
  • the receiving circuit includes two access ends;
  • the receiving coil includes at least two turns of sub-coils, the receiving coil includes two lead terminals, and one of the lead terminals of the receiving coil is connected to one of the access terminals of the receiving circuit;
  • the first switch module includes at least two first switches, a control end of each of the first switches is connected to the first control module, and the first end of the first switch is connected to one of the receiving coils. Turn-sub-coil connection, the second end of the first switch is connected to the other access end of the receiving circuit;
  • the first control module is configured to control on / off of at least two first switches in the first switch module according to a parameter related to a magnetic coupling strength between the receiving coil and a transmitting coil of the wireless charging device, so as to Adjusting the number of turns of the sub-coils that are effectively working in the receiving coil.
  • an embodiment of the present disclosure further provides a wireless charging device, including:
  • the transmitting circuit includes two access ends;
  • the transmitting coil includes at least two turns of sub-coils, the transmitting coil includes two lead terminals, and one of the lead terminals of the transmitting coil is connected to one of the access terminals of the transmitting circuit;
  • the second switch module includes at least two second switches, a control end of each second switch is connected to the second control module, and a first end of the second switch is connected to one of the transmitting coils.
  • a winding sub-coil is connected, and a second end of the second switch is connected to another access end of the transmitting circuit;
  • the second control module is configured to control on / off of at least two second switches in the second switch module according to parameters related to the magnetic coupling strength between the transmitting coil and the receiving coil of the electronic device to adjust The number of turns of a sub-coil in the transmitting coil that works effectively is described.
  • an embodiment of the present disclosure further provides a wireless charging method, which is applied to any one of the foregoing electronic devices and includes:
  • an embodiment of the present disclosure further provides a wireless charging method, which is applied to any one of the foregoing wireless charging devices and includes:
  • an embodiment of the present disclosure further provides an electronic device, including:
  • a first acquisition module configured to acquire parameters related to magnetic coupling strength between a receiving coil and a transmitting coil of a wireless charging device
  • a first adjustment module is configured to control the on and off of at least two first switches in the first switch module according to the magnetic coupling strength-related parameters, so as to adjust the number of turns of the sub-coils in the receiving coil that work effectively.
  • an embodiment of the present disclosure further provides a wireless charging device, including:
  • a second acquisition module configured to acquire parameters related to the magnetic coupling strength between the transmitting coil and the receiving coil of the electronic device
  • a second adjustment module is configured to control the on and off of at least two second switches in the second switch module according to the magnetic coupling strength-related parameters, so as to adjust the number of turns of the sub-coils in the transmitting coil that work effectively.
  • an embodiment of the present disclosure further provides an electronic device including a processor, a memory, and a computer program stored on the memory and executable on the processor.
  • the computer program is processed by the processor. The steps of implementing any of the above-mentioned wireless charging methods applied to an electronic device when executed.
  • an embodiment of the present disclosure further provides a wireless charging device including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program is processed by the processor When the charger executes, any of the steps of the wireless charging method applied to the wireless charging device is implemented.
  • an embodiment of the present disclosure further provides a computer-readable storage medium on which a computer program is stored.
  • a computer program is stored on which a computer program is stored.
  • the impedance of the receiving coil and / or the transmitting coil is adjusted by adjusting the number of turns of the sub coil that is effectively working in the receiving coil, and / or adjusting the number of turns of the sub coil that is effectively operating in the transmitting coil, Furthermore, under the premise of ensuring the charging efficiency (fast charging), the temperature rise of the corresponding device during charging is reduced, and at the same time, the charging loss can be reduced.
  • FIG. 1 is a schematic circuit structure diagram of an electronic device according to the first embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of another circuit structure of an electronic device according to the first embodiment of the present disclosure.
  • 3a is a schematic front view of a receiving coil according to the first embodiment of the present disclosure
  • FIG. 3b is a schematic diagram of the reverse side of the receiving coil in FIG. 3a;
  • FIG. 4 is a schematic circuit structure diagram of a second electronic device in Embodiment 1 of the present disclosure.
  • FIG. 5 is a schematic flowchart of a wireless charging method according to a third embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a wireless charging device and an electronic device cooperating to implement wireless power transmission in an embodiment of the present disclosure
  • FIG. 7 is a schematic flowchart of a wireless charging method in Embodiment 4 of the present disclosure.
  • FIG. 8 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of an electronic device according to a fifth embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a wireless charging device in Embodiment 6 of the present disclosure.
  • FIG. 11 is a schematic structural diagram of an electronic device according to a seventh embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a wireless charging device in Embodiment 8 of the present disclosure.
  • FIG. 1 is a schematic circuit structure diagram of an electronic device according to Embodiment 1 of the present disclosure.
  • the electronic device includes:
  • the receiving circuit 4 includes two access terminals 40;
  • the receiving coil 1 includes at least two turns of sub-coils, the receiving coil 1 includes two lead terminals 10, and one of the lead terminals 10 of the receiving coil 1 is connected to one of the access terminals 40 of the receiving circuit 4;
  • the first switch module 2 includes at least two first switches, and a control terminal of each of the first switches is connected to the first control module 3 (only the control terminal of the first switch S1 and The first control module 3), the first end of the first switch is connected to one of the sub-coils of the receiving coil 1 (each sub-coil of the receiving coil 1 is equivalent to one line in FIG. 1) The second end of the first switch is connected to the other access end 40 of the receiving circuit 4;
  • the first control module 3 is configured to control the communication of at least two first switches in the first switch module 2 according to the magnetic coupling strength related parameters between the receiving coil 1 and the transmitting coil of the wireless charging device. Off to adjust the number of turns of the sub-coils that are effectively working in the receiving coil 1.
  • the electronic device provided in the embodiment of the present disclosure adjusts the receiving coil 1 by controlling the on / off of at least two first switches in the first switch module 2 according to the magnetic coupling strength related parameters between the receiving coil 1 and the transmitting coil of the wireless charging device.
  • the number of turns of the sub-coils that work effectively in the medium, so as to adjust the effective impedance of the receiving coil 1 (the more turns of the coil, the longer the coil, the greater the impedance), and then the charging efficiency (charging speed) can be guaranteed Reduce the temperature rise of electronic equipment during charging, and also reduce charging losses.
  • each first switch in the first switch module 2 passes through a feed point terminal (lead out from a sub-coil of the receiving coil 1) and one of the turns of the receiving coil 1
  • the other end of the coil is connected to one of the access terminals 40 of the receiving circuit 4, and the other end of the receiving circuit 4 is connected to one of the lead terminals 10 of the receiving coil 1.
  • the inner lead terminal close to the center of the receiving coil 1 is connected to the other access end 40 of the receiving circuit 4
  • the outer lead terminal remote from the center of the receiving coil 1 is used as the fifth turn sub-coil (
  • the sub-coil turns are numbered from the inside to the outside of the feed point terminal.
  • the receiving circuit 4 may include a receiving chip, a rectifier circuit, and an energy storage battery.
  • the receiving chip may be used to complete other calculation processing and control required during the wireless charging process, and may also be used to complete calculations required when the electronic device is running. Processing and control.
  • the receiving coil 1 shown in FIG. 2 has five turns of sub-coils, and the first switch module 2 has five first switches. If the first control module 3 controls the first switch S1 to close and the other first switches are open, Then the actual working sub-coil in the receiving coil 1 is 5 turns; if the first control module 3 controls the first switch S2 to be closed and the other first switches are open, then the actual working sub-coil in the receiving coil 1 is 4 turns; A control module 3 controls the first switch S5 to be closed and the other first switches to be opened, so that the sub-coil actually working in the receiving coil 1 has only one turn. Therefore, the first control module 3 can adjust the number of effective sub-coil turns in the receiving coil 1 as needed.
  • the temperature rise during the charging process is reduced by reducing the number of sub-coil turns that actually work in the receiving coil 1.
  • the first switch module 2 and / or the first control module 3 may be integrated into a receiving chip in the receiving circuit 4 to improve circuit integration.
  • the receiving coil 1 may specifically be a spiral coil, including a front coil and a back coil, and the number of sub-coil turns of the front coil is the same as the number of sub-coil turns of the back coil.
  • the turn sub-coils are respectively connected in parallel with the corresponding turn sub-coils of the reverse coil.
  • FIG. 3a is a schematic front view of the spiral coil
  • FIG. 3b is a schematic back view of the spiral coil.
  • the spiral coil includes two lead terminals 10, and each turn of the sub-coil of the front coil is electrically connected through the electrical connection hole 6 and The corresponding turns of sub coils of the reverse coil are connected, that is, the first turns of the sub coil of the front coil are connected in parallel with the first turns of the sub coil, and the second turns of the front coil are connected in parallel with the second turns of the sub coil. .
  • the front coil sub-coil and the reverse coil sub-coil in parallel can share the charging current in the receiving coil 1 and reduce the overall resistance of the receiving coil 1, thereby further reducing the temperature rise of the electronic device during charging.
  • the magnetic coupling strength related parameters include at least one of the following: a coupling coefficient between the receiving coil and the transmitting coil; a mutual inductance between the receiving coil and the transmitting coil; Relative position; induced electromotive force in the receiving coil; transmission power; transmission gain. That is, one or more of these parameters can be used to indicate the strength of the magnetic coupling between the receiving coil and the transmitting coil.
  • the mutual inductance between the receiving coil and the transmitting coil where k is a coupling coefficient between the receiving coil and the transmitting coil, Lp is an inductance of the transmitting coil, and Ls is an inductance of the receiving coil, and the receiving coil and the The magnetic coupling strength between the transmitting coils is positively related to the mutual inductance between the two.
  • the coupling coefficient between the receiving coil and the transmitting coil is related to the relative position between the transmitting coil and the receiving coil. When the transmitting coil and the receiving coil are aligned at the center, the coupling coefficient between the receiving coil and the transmitting coil is the largest, the mutual inductance is the largest, and the magnetic flux passing between the coils is the largest.
  • the electronic device further includes a detection module 5 for detecting and obtaining the magnetic coupling strength related parameters between the receiving coil and the transmitting coil of the wireless charging device, for example, for detecting.
  • the detection module 5 includes a detection unit and at least one pair of auxiliary coils disposed orthogonally in the receiving coil 1, and the detection unit is configured to detect an induction in the auxiliary coil. Electromotive force, and acquiring a relative position between the receiving coil and the transmitting coil according to the induced electromotive force.
  • the electronic device further includes a communication module, configured to communicate with the wireless charging device, and receive related parameters of the transmitting coil in the wireless charging device, so as to obtain information between the receiving coil and the transmitting coil of the wireless charging device.
  • the parameters related to the magnetic coupling strength are, for example, used to obtain an inductance of the transmitting coil.
  • Embodiment 2 of the present disclosure provides a wireless charging device.
  • the wireless charging device includes:
  • the transmitting circuit includes two access ends;
  • the transmitting coil includes at least two turns of sub-coils, the transmitting coil includes two lead terminals, and one of the lead terminals of the transmitting coil is connected to one of the access terminals of the transmitting circuit;
  • the second switch module includes at least two second switches, a control end of each second switch is connected to the second control module, and a first end of the second switch is connected to one of the transmitting coils.
  • a winding sub-coil is connected, and a second end of the second switch is connected to another access end of the transmitting circuit;
  • the second control module is configured to control on / off of at least two second switches in the second switch module according to parameters related to the magnetic coupling strength between the transmitting coil and the receiving coil of the electronic device to adjust The number of turns of a sub-coil in the transmitting coil that works effectively is described.
  • the second control module in the wireless charging device may control the communication of at least two second switches in the second switch module according to the magnetic coupling strength related parameters between its transmitting coil and the receiving coil in the electronic device. Turn off to adjust the number of turns of the sub-coil that is effectively working in the transmitting coil, thereby adjusting the effective impedance of the transmitting coil, thereby reducing the temperature rise of the wireless charging device during charging while ensuring the charging efficiency (charging speed), and at the same time, it can reduce Charging loss.
  • the transmitting coil specifically includes a front coil and a reverse coil, and the number of sub-coil turns of the front coil is the same as the number of sub-coil turns of the reverse coil, and each sub-coil of the front coil is respectively It is connected in parallel with the corresponding sub-coil of the reverse coil.
  • the transmitting coil may be the same spiral coil as the receiving coil of the electronic device shown in FIG. 3a and FIG. 3b. Therefore, for the specific structure of the transmitting coil and the beneficial effects that can be generated, refer to the foregoing first embodiment, which will not be repeated here.
  • the transmitting circuit may include a power supply, a transmitting chip, and other peripheral circuits.
  • the transmitting chip is mainly used to complete other calculation processing and control required by the wireless charging device during the charging process.
  • the wireless charging device in this embodiment is proposed based on the same inventive concept as the electronic device in the first embodiment. Except for the transmitting circuit, other specific structures, principles, and beneficial effects can be found in the first embodiment. The specific content is not repeated here.
  • FIG. 5 is a schematic flowchart of a wireless charging method provided in Embodiment 3 of the present disclosure.
  • the wireless charging method can be applied to the electronic device according to the first embodiment, and the method includes:
  • Step 11 Obtain parameters related to the magnetic coupling strength between the receiving coil and the transmitting coil of the wireless charging device
  • Step 12 Control at least two first switches of the first switch module to be turned on and off according to the magnetic coupling strength related parameters, so as to adjust the number of turns of the sub-coils that work effectively in the receiving coil.
  • the effective in the receiving coil is adjusted by controlling the on / off of at least two first switches in the first switch module according to the magnetic coupling strength related parameters between the receiving coil of the electronic device and the transmitting coil of the wireless charging device.
  • the number of turns of the working sub-coil so as to adjust the effective impedance of the receiving coil, thereby reducing the temperature rise of the electronic device during charging under the premise of ensuring the charging efficiency (charging speed), and can also reduce the charging loss.
  • the above step 12 that is, controlling at least two first switches of the first switch module according to the magnetic coupling strength related parameters to adjust the receiving
  • the steps for the number of turns of a sub-coil effectively working in a coil include:
  • Step 121 When the magnetic coupling strength related parameter indicates that the receiving coil and the transmitting coil are in a strong coupling state, control at least two first switches in the first switch module to be turned on and off to reduce the The number of effective sub-coil turns in the receiving coil;
  • Step 122 when the magnetic coupling strength related parameter indicates that the receiving coil and the transmitting coil are in a weakly coupled state, controlling at least two first switches in the first switch module to be turned on and off to increase the The number of active sub-coil turns in the receiving coil.
  • the receiving coil and the transmitting coil of the electronic device are in a strong coupling state, only a part of the sub-coils in the receiving coil can be used to achieve fast charging, so the sub-coil turns that work effectively in the receiving coil can be reduced This reduces impedance losses and reduces temperature rise during charging.
  • the magnetic coupling strength related parameters include at least one of the following:
  • FIG. 6 is a schematic diagram of wireless energy transmission through cooperation between a wireless charging device and an electronic device.
  • the magnetic coupling strength related parameter is a transmission gain (or an induced electromotive force in a receiving coil)
  • the transmission gain G V2 / V1
  • V2 represents The voltage of the receiving coil in the electronic device (that is, the induced electromotive force in the receiving coil)
  • V1 represents the voltage of the transmitting coil in the wireless charging device.
  • V2 When V2 is greater than V, it indicates that the receiving coil and the transmitting coil are in a strong coupling state, and the on and off of at least two first switches in the first switch module are controlled to reduce the number of sub-coil turns that work effectively in the receiving coil. ; When V2 is not greater than V, it indicates that the receiving coil and the transmitting coil are in a weakly coupled state, and the on and off of at least two first switches in the first switch module are controlled to increase the effective working sub-coil turns in the receiving coil. number.
  • a coupling coefficient threshold may also be preset.
  • the coupling coefficient between the receiving coil and the transmitting coil is greater than a preset coupling coefficient, it indicates that the receiving The coil and the transmitting coil are in a strong coupling state, then the on and off of at least two first switches in the first switch module are controlled to reduce the number of sub-coil turns that are effectively working in the receiving coil; otherwise, at least the first switch module is controlled.
  • the two first switches are turned on and off to increase the number of effective sub-coil turns in the receiving coil.
  • a preset mutual inductance threshold is preset.
  • the mutual inductance of the transmitting coil is greater than a preset mutual inductance threshold, it indicates that the receiving coil and the transmitting coil are in a strong coupling state, then controlling at least two first switches in the first switch module to reduce the number of receiving coils.
  • the number of sub-coil turns that work effectively, otherwise control the on and off of at least two first switches in the first switch module to increase the The number of sub-coil turns for efficient operation.
  • the magnetic coupling strength related parameter is the relative position between the receiving coil and the transmitting coil, the distance between the center of the transmitting coil and the center of the receiving coil can be obtained, and a distance threshold is preset.
  • the distance between the centers of the receiving coils is greater than a preset distance threshold, it indicates that the receiving coils and the transmitting coils are in a weakly coupled state, and then at least two first switches in the first switch module are controlled to increase the reception.
  • FIG. 7 is a schematic flowchart of a wireless charging method provided in Embodiment 4 of the present disclosure.
  • the wireless charging method can be applied to the wireless charging device according to the second embodiment.
  • the method includes:
  • Step 21 Obtain parameters related to the magnetic coupling strength between the transmitting coil and the receiving coil of the electronic device
  • Step 22 Control on / off of at least two second switches in the second switch module according to the magnetic coupling strength related parameters, so as to adjust the number of turns of the sub-coils in the transmitting coil that are effectively working.
  • the effective in the transmitting coil is adjusted by controlling the on / off of the second switch in the second switching module according to the magnetic coupling strength related parameters between the transmitting coil in the wireless charging device and the receiving coil in the electronic device.
  • the above step 22 that is, controlling at least two second switches in the second switch module according to the magnetic coupling strength related parameters to adjust the emission
  • the steps for the number of turns of a sub-coil effectively working in a coil include:
  • Step 221 When the magnetic coupling strength related parameter indicates that the transmitting coil and the receiving coil are in a strong coupling state, control at least two second switches in the second switch module to be turned on and off to reduce the The number of effective sub-coil turns in the transmitting coil;
  • Step 222 when the magnetic coupling strength related parameter indicates that the transmitting coil and the receiving coil are in a weakly coupled state, controlling at least two second switches in the second switch module to be turned on and off to increase the The number of active sub-coil turns in the transmit coil.
  • the magnetic coupling strength related parameters include at least one of the following:
  • the wireless charging method applied to the wireless charging device in this embodiment is proposed based on the same inventive concept as the wireless charging method in the third embodiment described above.
  • the wireless charging methods described in the third embodiment and the fourth embodiment can be implemented by means of software plus a necessary universal hardware platform. Of course, they can also be implemented by Hardware, but in many cases the former is a better implementation.
  • the technical solution of the present disclosure that is essentially or contributes to related technologies can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, and optical disk) ) Includes several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in the third and fourth embodiments of the present disclosure.
  • FIG. 8 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present disclosure.
  • the electronic device 100 includes, but is not limited to, a radio frequency unit 101, a network module 102, and an audio output in addition to the receiving coil and the first switch module described above.
  • the structure of the electronic device shown in FIG. 8 does not constitute a limitation on the electronic device.
  • the electronic device may include more or fewer components than shown in the figure, or some components may be combined, or different components. Layout.
  • the electronic device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a car terminal, a wearable device, a pedometer, and the like.
  • the processor (including the first control module) 110 is configured to obtain a magnetic coupling strength related parameter between the receiving coil and the transmitting coil of the wireless charging device; and control the first switch module according to the magnetic coupling strength related parameter. At least two of the first switches are turned on and off to adjust the number of turns of the sub-coils that are effectively working in the receiving coil.
  • the radio frequency unit 101 may be used to receive and send signals during the process of receiving and sending information or during a call. Specifically, after receiving the downlink data from the base station, the processor (including the first control module) ) 110 processing; in addition, sending uplink data to the base station.
  • the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 101 can also communicate with a network and other devices through a wireless communication system.
  • the electronic device provides users with wireless broadband Internet access through the network module 102, such as helping users to send and receive email, browse web pages, and access streaming media.
  • the audio output unit 103 may convert audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into audio signals and output them as sound. Moreover, the audio output unit 103 may also provide audio output (for example, a call signal receiving sound, a message receiving sound, etc.) related to a specific function performed by the electronic device 100.
  • the audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 104 is used to receive audio or video signals.
  • the input unit 104 may include a graphics processing unit (Graphics Processing Unit, GPU) 1041 and a microphone 1042.
  • the graphics processor 1041 pairs images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed.
  • the processed image frames may be displayed on the display unit 106.
  • the image frames processed by the graphics processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the network module 102.
  • the microphone 1042 can receive sound and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 101 in the case of a telephone call mode and output.
  • the electronic device 100 further includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light.
  • the proximity sensor can close the display panel 1061 and the electronic device 100 when the electronic device 100 moves to the ear. / Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three axes), and can detect the magnitude and direction of gravity when it is stationary.
  • sensor 105 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, Infrared sensors, etc. are not repeated here.
  • the display unit 106 is configured to display information input by the user or information provided to the user.
  • the display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 107 may be used to receive inputted numeric or character information, and generate key signal inputs related to user settings and function control of the electronic device.
  • the user input unit 107 includes a touch panel 1071 and other input devices 1072.
  • Touch panel 1071 also known as touch screen, can collect user's touch operations on or near it (such as the user using a finger, stylus, etc. any suitable object or accessory on touch panel 1071 or near touch panel 1071 operating).
  • the touch panel 1071 may include two parts, a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into contact coordinates, and sends it
  • the processor (including the first control module) 110 receives commands from the processor (including the first control module) 110 and executes the commands.
  • various types such as resistive, capacitive, infrared, and surface acoustic wave can be used to implement the touch panel 1071.
  • the user input unit 107 may also include other input devices 1072.
  • other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, and details are not described herein again.
  • the touch panel 1071 may be overlaid on the display panel 1061.
  • the touch panel 1071 detects a touch operation on or near the touch panel 1071, it transmits it to the processor (including the first control module) 110 to determine the type of the touch event. Then, the processor (including the first control module) 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event.
  • the touch panel 1071 and the display panel 1061 are implemented as two independent components to implement the input and output functions of the electronic device, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated. The implementation of the input and output functions of the electronic device is not specifically limited here.
  • the interface unit 108 is an interface through which an external device is connected to the electronic device 100.
  • the external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input / output (I / O) port, video I / O port, headphone port, and more.
  • the interface unit 108 may be used to receive an input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the electronic device 100 or may be used to connect the electronic device 100 and an external device. Transfer data between devices.
  • the memory 109 may be used to store software programs and various data.
  • the memory 109 may mainly include a storage program area and a storage data area, where the storage program area may store an operating system, at least one application required by a function (such as a sound playback function, an image playback function, etc.), etc .; Data (such as audio data, phone book, etc.) created by the use of mobile phones.
  • the memory 109 may include a high-speed random access memory, and may further include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor (including the first control module) 110 is a control center of the electronic device, and uses various interfaces and lines to connect various parts of the entire electronic device. By running or executing software programs and / or modules stored in the memory 109, and calling The data stored in the memory 109 performs various functions of the electronic device and processes the data, thereby performing overall monitoring of the electronic device.
  • the processor (including the first control module) 110 may include one or more processing units; optionally, the processor (including the first control module) 110 may integrate an application processor and a modem processor, wherein the application processor It mainly deals with operating system, user interface and application programs, etc.
  • the modem processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor (including the first control module) 110.
  • the electronic device 100 may further include a power supply 111 (such as a battery) for supplying power to various components.
  • a power supply 111 such as a battery
  • the power supply 111 may be logically connected to the processor (including the first control module) 110 through a power management system, thereby implementing management through the power management system. Charge, discharge, and power management functions.
  • the electronic device 100 includes some functional modules that are not shown, and details are not described herein again.
  • FIG. 9 is a schematic structural diagram of an electronic device according to a fifth embodiment of the present disclosure, including:
  • a first obtaining module 31 configured to obtain a parameter related to a magnetic coupling strength between a receiving coil and a transmitting coil of a wireless charging device
  • the first adjustment module 32 is configured to control the on and off of at least two first switches in the first switch module according to the magnetic coupling strength related parameters, so as to adjust the number of turns of the sub-coils in the receiving coil that are effectively working.
  • the effective in the receiving coil is adjusted by controlling the on / off of at least two first switches in the first switch module according to the magnetic coupling strength related parameters between the receiving coil of the electronic device and the transmitting coil of the wireless charging device.
  • the number of turns of the working sub-coil so as to adjust the effective impedance of the receiving coil, thereby reducing the temperature rise of the electronic device during charging under the premise of ensuring the charging efficiency (charging speed), and can also reduce the charging loss.
  • the first adjustment module 32 includes:
  • a first control unit configured to control the on / off of at least two first switches in the first switch module when the magnetic coupling strength related parameter indicates that the receiving coil and the transmitting coil are in a strong coupling state, To reduce the number of turns of the sub-coils that work effectively in the receiving coil;
  • a second control unit configured to control the on and off of at least two first switches in the first switch module when the magnetic coupling strength related parameter indicates that the receiving coil and the transmitting coil are in a weak coupling state, In order to increase the number of sub-coil turns that work effectively in the receiving coil.
  • FIG. 10 is a schematic structural diagram of a wireless charging device according to Embodiment 6 of the present disclosure.
  • the wireless charging device includes:
  • a second acquisition module 41 configured to acquire parameters related to the magnetic coupling strength between the transmitting coil and the receiving coil of the electronic device
  • the second adjustment module 42 is configured to control at least two of the second switches in the second switch module to be turned on and off according to the magnetic coupling strength related parameters, so as to adjust the number of turns of the sub-coils that work effectively in the transmitting coil.
  • the effective in the transmitting coil is adjusted by controlling the on / off of the second switch in the second switching module according to the magnetic coupling strength related parameters between the transmitting coil in the wireless charging device and the receiving coil in the electronic device.
  • the second adjustment module 42 includes:
  • a third control unit configured to control the on and off of at least two second switches in the second switch module when the magnetic coupling strength related parameter indicates that the transmitting coil and the receiving coil are in a strong coupling state, To reduce the number of turns of the sub-coils that are effectively working in the transmitting coil;
  • a fourth control unit configured to control the on and off of at least two second switches in the second switch module when the magnetic coupling strength related parameter indicates that the transmitting coil and the receiving coil are in a weak coupling state, In order to increase the number of sub-coil turns that work effectively in the transmitting coil.
  • FIG. 11 is a schematic structural diagram of an electronic device according to Embodiment 7 of the present disclosure.
  • the electronic device 500 includes a processor 501 and a memory 502, which are stored in the memory 502 and can run on the processor 501.
  • Computer program, the processor 501 includes a first control module, and when the computer program is executed by the processor 501, the following steps are implemented:
  • the magnetic coupling strength related parameters include at least one of the following:
  • the electronic device can implement the processes of the wireless charging method provided in the third embodiment, and can achieve the same technical effect. To avoid repetition, details are not described herein again.
  • FIG. 12 is a schematic structural diagram of a wireless charging device according to Embodiment 8 of the present disclosure.
  • the wireless charging device 600 includes a processor 601 and a memory 602.
  • the computer program running on the processor 601 includes a second control module. When the computer program is executed by the processor 601, the following steps are implemented:
  • the magnetic coupling strength related parameters include at least one of the following:
  • the wireless charging device can implement each process of the wireless charging method in the fourth embodiment, and can achieve the same technical effect. To avoid repetition, details are not described herein again.
  • An embodiment of the present disclosure further provides a computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium.
  • the processes of the foregoing wireless charging method embodiments are implemented, and the same technology can be achieved. Effect, in order to avoid repetition, will not repeat them here.
  • the computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

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Abstract

一种电子设备、无线充电设备和无线充电方法，属于充电技术领域，电子设备包括：接收线圈(1)、接收电路(4)、第一开关模块(2)和第一控制模块(3)；第一控制模块(3)，用于根据接收线圈(1)与无线充电设备的发射线圈之间的磁耦合强度相关参数，控制第一开关模块(2)中的至少两个第一开关(S1,S2,S10,S11)的通断，以调整接收线圈(1)中有效工作的子线圈的匝数。

Description

电子设备、无线充电设备和无线充电方法
相关申请的交叉引用
本申请主张在2018年7月10日在中国提交的中国专利申请No.201810752195.3的优先权，其全部内容通过引用包含于此。
技术领域
本公开实施例涉及充电技术领域，尤其涉及一种电子设备、无线充电设备和无线充电方法。
背景技术
随着无线充电技术的发展，无线充电功能在终端设备中的应用越来越普及。当前应用于智能终端设备的无线充电技术的最主要技术发展方向之一为增加充电功率，即无线快充技术，其可以缩短终端设备的充电时长，从而改良用户的充电体验。
但是目前在终端设备中，因设备温升问题到不到解决，导致无线快充技术发展受限，而其中导致充电过程中温度升高的最主要原因之一是线圈。为实现无线充电需要设计很多匝线圈，而线圈的匝数越多，也即线圈越长，其阻抗就越大，阻抗越大其消耗的电能越多，产生的热量也就越大。
发明内容
本公开实施例提供一种电子设备、无线充电设备和无线充电方法，以解决相关技术中的无线充电过程中设备的温升问题。
为解决上述技术问题，本公开是这样实现的：
第一方面，本公开实施例提供了一种电子设备，包括：
接收线圈、接收电路、第一开关模块和第一控制模块；
所述接收电路包括两个接入端；
所述接收线圈包括至少两匝子线圈，所述接收线圈包括两引线端，所述接收线圈的其中一个引线端与所述接收电路的其中一个接入端连接；
所述第一开关模块包括至少两个第一开关，每一所述第一开关的控制端与所述第一控制模块连接，所述第一开关的第一端与所述接收线圈的其中一匝子线圈连接，所述第一开关的第二端与所述接收电路的另一个接入端连接；
所述第一控制模块，用于根据所述接收线圈与无线充电设备的发射线圈之间的磁耦合强度相关参数，控制所述第一开关模块中的至少两个第一开关的通断，以调整所述接收线圈中有效工作的子线圈的匝数。
第二方面，本公开实施例还提供了一种无线充电设备，包括：
发射线圈、发射电路、第二开关模块和第二控制模块；
所述发射电路包括两个接入端；
所述发射线圈包括至少两匝子线圈，所述发射线圈包括两引线端，所述发射线圈的其中一个引线端与所述发射电路的其中一个接入端连接；
所述第二开关模块包括至少两个第二开关，每一所述第二开关的控制端与所述第二控制模块连接，所述第二开关的第一端与所述发射线圈的其中一匝子线圈连接，所述第二开关的第二端与所述发射电路的另一个接入端连接；
所述第二控制模块，用于根据所述发射线圈与电子设备的接收线圈之间的磁耦合强度相关参数，控制所述第二开关模块中的至少两个第二开关的通断，以调整述所述发射线圈中有效工作的子线圈的匝数。
第三方面，本公开实施例还提供了一种无线充电方法，应用于上述任一种电子设备，包括：
获取接收线圈与无线充电设备的发射线圈之间的磁耦合强度相关参数；
根据所述磁耦合强度相关参数，控制第一开关模块中的至少两个第一开关的通断，以调整所述接收线圈中有效工作的子线圈的匝数。
第四方面，本公开实施例还提供了一种无线充电方法，应用于上述任一种无线充电设备，包括：
获取发射线圈与电子设备的接收线圈之间的磁耦合强度相关参数；
根据所述磁耦合强度相关参数，控制第二开关模块中的至少两个第二开关的通断，以调整所述发射线圈中有效工作的子线圈的匝数。
第五方面，本公开实施例还提供了一种电子设备，包括：
第一获取模块，用于获取接收线圈与无线充电设备的发射线圈之间的磁 耦合强度相关参数；
第一调整模块，用于根据所述磁耦合强度相关参数，控制第一开关模块中的至少两个第一开关的通断，以调整所述接收线圈中有效工作的子线圈的匝数。
第六方面，本公开实施例还提供了一种无线充电设备，包括：
第二获取模块，用于获取发射线圈与电子设备的接收线圈之间的磁耦合强度相关参数；
第二调整模块，用于根据所述磁耦合强度相关参数，控制第二开关模块中的至少两个第二开关的通断，以调整所述发射线圈中有效工作的子线圈的匝数。
第七方面，本公开实施例还提供了一种电子设备，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现上述任一种应用于电子设备的无线充电方法的步骤。
第八方面，本公开实施例还提供了一种无线充电设备，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现上述任一种应用于无线充电设备的无线充电方法的步骤。
第九方面，本公开实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现上述的任一种无线充电方法的步骤。
在本公开实施例中，通过调整接收线圈中有效工作的子线圈的匝数，和/或，调整发射线圈中有效工作的子线圈的匝数，从而调整接收线圈和/或发射线圈的阻抗，进而在保证充电效率(快充)的前提下，降低相应设备在充电时的温升，同时还可以降低充电损耗。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例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 是本公开的一些实施例，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为本公开实施例一中的一种电子设备的一种电路结构示意图；
图2为本公开实施例一中的一种电子设备的另一种电路结构示意图；
图3a为本公开实施例一中的一种接收线圈的正面示意图；
图3b为图3a中的接收线圈的反面示意图；
图4为本公开实施例一中的第二种电子设备的电路结构示意图；
图5为本公开实施例三中的一种无线充电方法的流程示意图；
图6为本公开实施例中无线充电设备与电子设备配合实现电能无线传输的示意图；
图7为本公开实施例四中的一种无线充电方法的流程示意图；
图8为本公开实施例中的电子设备的一种硬件结构示意图；
图9为本公开实施例五中的电子设备的一种结构示意图；
图10为本公开实施例六中无线充电设备的一种结构示意图；
图11为本公开实施例七中的电子设备的一种结构示意图；
图12为本公开实施例八中的无线充电设备的一种结构示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开保护的范围。
图1为本公开实施例一提供的一种电子设备的电路结构示意图，该电子设备包括：
接收线圈1、接收电路4、第一开关模块2和第一控制模块3；
所述接收电路4包括两个接入端40；
所述接收线圈1包括至少两匝子线圈，所述接收线圈1包括两引线端10，所述接收线圈1的其中一个引线端10与所述接收电路4的其中一个接入端 40连接；
所述第一开关模块2包括至少两个第一开关，每一所述第一开关的控制端与所述第一控制模块3连接(图1中仅示出第一开关S1的控制端与所述第一控制模块3)，所述第一开关的第一端与所述接收线圈1的其中一匝子线圈(图1中将接收线圈1的每一匝子线圈等效为一条线)连接，所述第一开关的第二端与所述接收电路4的另一个接入端40连接；
所述第一控制模块3，用于根据所述接收线圈1与无线充电设备的发射线圈之间的磁耦合强度相关参数，控制所述第一开关模块2中的至少两个第一开关的通断，以调整所述接收线圈1中有效工作的子线圈的匝数。
本公开实施例提供的电子设备，根据接收线圈1与无线充电设备的发射线圈之间的磁耦合强度相关参数，控制第一开关模块2中至少两个第一开关的通断来调整接收线圈1中有效工作的子线圈的匝数，从而调整接收线圈1的有效阻抗(线圈的匝数越多，线圈越长，其阻抗也越大)，进而可以在保证充电效率(充电速度)的前提下降低电子设备在充电时的温升，同时还可以降低充电损耗。
下面举例说明电子设备的具体结构。
请参阅图2，本实施例中，第一开关模块2中的每个第一开关的一端都通过馈点端子(接收线圈1的子线圈上引出的)与接收线圈1中的其中一匝子线圈连接，另一端与接收电路4的一个接入端40连接，接收电路4的另一个接入端40与所述接收线圈1的其中一个引线端10连接。当与接收电路4的另一个接入端40连接的是所述接收线圈1上靠近中心的内侧引线端时，那么所述接收线圈1上远离中心的外侧引线端则作为第五匝子线圈(子线圈匝数由内向外编号)的馈点端子。所述接收电路4可以包括接收芯片、整流电路和储能电池等，接收芯片可以用于完成无线充电过程中所需的其他计算处理与控制，还可以用于完成电子设备运行时所需的计算处理与控制。
具体地，图2所示的接收线圈1具有5匝子线圈，第一开关模块2相应具有5个第一开关，如果第一控制模块3控制第一开关S1闭合，其他第一开关断开，那么接收线圈1中实际工作的子线圈为5匝；如果第一控制模块3控制第一开关S2闭合，其他第一开关断开，那么接收线圈1中实际工作的子 线圈为4匝；如果第一控制模块3控制第一开关S5闭合，其他第一开关断开，那么接收线圈1中实际工作的子线圈只有1匝。从而，第一控制模块3可以根据需要调整接收线圈1中的有效子线圈匝数。接收线圈1中有效工作的子线圈匝数越少，接收线圈1的阻抗越小，阻抗越小损耗越小、发热也越少，因此在保证电子设备的充电效率(充电速度)的前提下可以通过减小接收线圈1中实际工作的子线圈匝数来降低充电过程中的温升。
在其他实施方式中，第一开关模块2和/或第一控制模块3可以集成到接收电路4中的接收芯片中，提高电路集成度。
可选地，所述接收线圈1具体可以是螺旋线圈，包括正面线圈和反面线圈，所述正面线圈的子线圈匝数与所述反面线圈的子线圈匝数相同，所述正面线圈的每一匝子线圈分别与所述反面线圈的对应匝子线圈并联。参阅图3a和图3b，图3a为螺旋线圈的正面示意图，图3b为螺旋线圈的反面示意图，该螺旋线圈包括两个引线端10，正面线圈的每一匝子线圈分别通过电气连接孔6与所述反面线圈的对应匝子线圈连接，也即正面线圈的第1匝子线圈与反面线圈的第1匝子线圈并联、正面线圈的第2匝子线圈与反面线圈的第2匝子线圈并联……。并联的正面线圈子线圈与反面线圈子线圈可以分担接收线圈1中的充电电流、降低接收线圈1的整体电阻，从而可以进一步降低电子设备在充电时的温升。
上述磁耦合强度相关参数包括以下至少之一：所述接收线圈与所述发射线圈的耦合系数；所述接收线圈与所述发射线圈的互感量；所述接收线圈与所述发射线圈之间的相对位置；所述接收线圈中的感应电动势；传输功率；传输增益。也即可以利用这些参数中的一个或多个表示接收线圈与发射线圈之间的磁耦合强度。
具体地，所述接收线圈与所述发射线圈的互感量，其中，k为接收线圈与发射线圈之间的耦合系数、Lp为发射线圈的电感量、Ls为接收线圈的电感量，接收线圈与发射线圈之间的磁耦合强度与其两者的互感量成正相关。接收线圈与发射线圈之间的耦合系数，与发射线圈和接收线圈之间的相对位置相关。当发射线圈和接收线圈正中心对位时，接收线圈与发射线圈之间的耦合系数最大、互感量最大和线圈间穿过的磁通量最大，接收线圈中产生的感 应电动势最大，传输功率也最大。
本公开实施例中，请参阅图4，所述电子设备中还包括检测模块5，用于检测获取上述的接收线圈与无线充电设备的发射线圈之间的磁耦合强度相关参数，例如用于检测所述接收线圈与所述发射线圈之间的相对位置、所述接收线圈与所述发射线圈的耦合系数、所述接收线圈中的感应电动势、传输功率以及所述接收线圈与所述发射线圈的互感量等。
其中一种实施方式中，所述检测模块5包括：检测单元以及设置在所述接收线圈1中的至少一对正交设置的辅助线圈，所述检测单元用于检测所述辅助线圈中的感应电动势，并根据该感应电动势获取所述接收线圈与所述发射线圈之间的相对位置。
其他可选的实施方式中，所述电子设备还包括通信模块，用于与无线充电设备通信，接收无线充电设备中发射线圈的相关参数，以获取接收线圈与无线充电设备的发射线圈之间的磁耦合强度相关参数，例如用于获取所述发射线圈的电感量。
本公开实施例二提供了一种无线充电设备，该无线充电设备包括：
发射线圈、发射电路、第二开关模块和第二控制模块；
所述发射电路包括两个接入端；
所述发射线圈包括至少两匝子线圈，所述发射线圈包括两引线端，所述发射线圈的其中一个引线端与所述发射电路的其中一个接入端连接；
所述第二开关模块包括至少两个第二开关，每一所述第二开关的控制端与所述第二控制模块连接，所述第二开关的第一端与所述发射线圈的其中一匝子线圈连接，所述第二开关的第二端与所述发射电路的另一个接入端连接；
所述第二控制模块，用于根据所述发射线圈与电子设备的接收线圈之间的磁耦合强度相关参数，控制所述第二开关模块中的至少两个第二开关的通断，以调整述所述发射线圈中有效工作的子线圈的匝数。
本公开实施例中，无线充电设备中的第二控制模块可以根据其发射线圈与电子设备中的接收线圈之间的磁耦合强度相关参数，控制第二开关模块中至少两个第二开关的通断来调整发射线圈中有效工作的子线圈的匝数，从而调整发射线圈的有效阻抗，进而在保证充电效率(充电速度)的前提下降低 无线充电设备在充电时的温升，同时还可以降低充电损耗。
下面举例说明无线充电设备的具体结构。
本公开实施例中，所述发射线圈具体包括正面线圈和反面线圈，所述正面线圈的子线圈匝数与所述反面线圈的子线圈匝数相同，所述正面线圈的每一匝子线圈分别与所述反面线圈的对应匝子线圈并联。所述发射线圈可采用与图3a和图3b所示的电子设备的接收线圈相同的螺旋线圈。因此，发射线圈的具体结构以及产生的有益效果可参阅上述实施例一，此处不再赘述。
所述发射电路可以包括供电电源、发射芯片以及其他周边电路，其中发射芯片主要用于完成无线充电设备在充电过程中所需的其他计算处理与控制。
本实施例中的无线充电设备是基于与上述实施例一中的电子设备同样的发明构思提出的，除发射电路外，其他具体的结构、原理及产生的有益效果请参阅上述实施例一中的具体内容，此处不再赘述。
图5为本公开实施例三提供的一种无线充电方法的流程示意图，该无线充电方法可以应用于上述实施例一所述的电子设备，该方法包括：
步骤11：获取接收线圈与无线充电设备的发射线圈之间的磁耦合强度相关参数；
步骤12：根据所述磁耦合强度相关参数，控制第一开关模块中的至少两个第一开关的通断，以调整所述接收线圈中有效工作的子线圈的匝数。
本公开实施例中，通过根据电子设备的接收线圈与无线充电设备的发射线圈之间的磁耦合强度相关参数，控制第一开关模块中至少两个第一开关的通断来调整接收线圈中有效工作的子线圈的匝数，从而调整接收线圈的有效阻抗，进而在保证充电效率(充电速度)的前提下降低电子设备在充电时的温升，同时还可以降低充电损耗。
下面举例说明上述无线充电方法的具体过程。
其中一种具体的实施方式中，上述步骤12，也即所述根据所述磁耦合强度相关参数，控制所述第一开关模块中的至少两个第一开关的通断，以调整所述接收线圈中有效工作的子线圈的匝数的步骤包括：
步骤121：当所述磁耦合强度相关参数表示所述接收线圈与所述发射线圈处于强耦合状态时，控制所述第一开关模块中的至少两个第一开关的通断， 以减小所述接收线圈中有效工作的子线圈匝数；
步骤122：当所述磁耦合强度相关参数表示所述接收线圈与所述发射线圈处于弱耦合状态时，控制所述第一开关模块中的至少两个第一开关的通断，以增加所述接收线圈中有效工作的子线圈匝数。
本实施例中，所述电子设备的接收线圈与所述发射线圈处于强耦合状态时，仅需要接收线圈中的部分子线圈就可以实现快充，因此可以减少接收线圈中有效工作的子线圈匝数，从而减少阻抗损耗，降低充电过程中的温升。
具体地，上述磁耦合强度相关参数包括以下至少之一：
所述接收线圈与所述发射线圈的耦合系数；
所述接收线圈与所述发射线圈的互感量；
所述接收线圈与所述发射线圈之间的相对位置；
所述接收线圈中的感应电动势；
传输功率；
传输增益。
下面举例说明上述步骤121和步骤122。
图6是无线充电设备与电子设备配合实现电能无线传输的示意图，当所述磁耦合强度相关参数为传输增益(或者接收线圈中的感应电动势)时，该传输增益G＝V2/V1，V2表示电子设备中的接收线圈电压(也即接收线圈中的感应电动势)，V1表示无线充电设备中的发射线圈电压。发射线圈与接收线圈的耦合越强，接收线圈电压V2越大，而发射线圈电压V1在供电电压不变的情况其也保持不变，因此，在电子设备的第一控制模块中设置阈值电压V，当V2大于V时，表示所述接收线圈与所述发射线圈处于强耦合状态，控制第一开关模块中的至少两个第一开关的通断来减少接收线圈中有效工作的子线圈匝数；当V2不大于V时，表示所述接收线圈与所述发射线圈处于弱耦合状态，控制第一开关模块中的至少两个第一开关的通断来增加接收线圈中有效工作的子线圈匝数。同样地，当所述磁耦合强度相关参数为接收线圈与发射线圈的耦合系数时，也可以预设耦合系数阈值，当接收线圈与发射线圈的耦合系数大于预设耦合系数时，表示所述接收线圈与所述发射线圈处于强耦合状态，则控制第一开关模块中的至少两个第一开关的通断来减少接收 线圈中有效工作的子线圈匝数，否则控制第一开关模块中的至少两个第一开关的通断来增加接收线圈中有效工作的子线圈匝数；当所述磁耦合强度相关参数为接收线圈与发射线圈的互感量时，预设互感量阈值，当接收线圈与发射线圈的互感量大于预设互感量阈值时，表示所述接收线圈与所述发射线圈处于强耦合状态，则控制第一开关模块中的至少两个第一开关的通断来减少接收线圈中有效工作的子线圈匝数，否则控制第一开关模块中的至少两个第一开关的通断来增加接收线圈中有效工作的子线圈匝数。而当所述磁耦合强度相关参数为接收线圈与发射线圈之间的相对位置时，可以获取发射线圈的中心和接收线圈的中心之间的距离，并预设距离阈值，当发射线圈的中心和接收线圈的中心之间的距离大于预设距离阈值时，表示所述接收线圈与所述发射线圈处于弱耦合状态，则控制第一开关模块中的至少两个第一开关的通断来增加接收线圈中有效工作的子线圈匝数，否则控制第一开关模块中的至少两个第一开关的通断来减少接收线圈中有效工作的子线圈匝数。
图7为本公开实施例四提供的一种无线充电方法的流程示意图，该无线充电方法可以应用于上述实施例二所述的无线充电设备，该方法包括：
步骤21：获取发射线圈与电子设备的接收线圈之间的磁耦合强度相关参数；
步骤22：根据所述磁耦合强度相关参数，控制第二开关模块中的至少两个第二开关的通断，以调整所述发射线圈中有效工作的子线圈的匝数。
本公开实施例中，通过根据无线充电设备中的发射线圈与电子设备中的接收线圈之间的磁耦合强度相关参数，控制第二开关模块中的第二开关的通断来调整发射线圈中有效工作的子线圈的匝数，从而调整发射线圈的有效阻抗，进而在保证充电效率(快充)的前提下降低无线充电设备在充电时的温升，同时还可以降低充电损耗。
下面举例说明上述无线充电方法的具体过程。
其中一种具体的实施方式中，上述步骤22，也即所述根据所述磁耦合强度相关参数，控制所述第二开关模块中的至少两个第二开关的通断，以调整所述发射线圈中有效工作的子线圈的匝数的步骤包括：
步骤221：当所述磁耦合强度相关参数表示所述发射线圈与所述接收线 圈处于强耦合状态时，控制所述第二开关模块中的至少两个第二开关的通断，以减小所述发射线圈中有效工作的子线圈匝数；
步骤222：当所述磁耦合强度相关参数表示所述发射线圈与所述接收线圈处于弱耦合状态时，控制所述第二开关模块中的至少两个第二开关的通断，以增加所述发射线圈中有效工作的子线圈匝数。
具体地，上述磁耦合强度相关参数包括以下至少之一：
所述接收线圈与所述发射线圈的耦合系数；
所述接收线圈与所述发射线圈的互感量；
所述接收线圈与所述发射线圈之间的相对位置；
所述接收线圈中的感应电动势；
传输功率；
传输增益。
本实施例中的应用于无线充电设备的无线充电方法，是基于与上述实施例三中的无线充电方法同样的发明构思提出的，具体的步骤、原理及产生的有益效果请参阅上述实施例三中的具体内容，此处不再赘述。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例三和实施例四所述的无线充电方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本公开实施例三和四所述的方法。
图8为本公开实施例中的电子设备的一种硬件结构示意图，该电子设备100除上述的接收线圈和第一开关模块外，还包括但不限于：射频单元101、网络模块102、音频输出单元103、输入单元104、传感器105、显示单元106、用户输入单元107、接口单元108、存储器109、处理器(包括第一控制模块)110、以及电源111等部件。本领域技术人员可以理解，图8中示出的电子设备结构并不构成对电子设备的限定，电子设备可以包括比图示更多或更少的 部件，或者组合某些部件，或者不同的部件布置。在本公开实施例中，电子设备包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。
其中，处理器(包括第一控制模块)110，用于获取接收线圈与无线充电设备的发射线圈之间的磁耦合强度相关参数；根据所述磁耦合强度相关参数，控制所述第一开关模块中的至少两个第一开关的通断，以调整所述接收线圈中有效工作的子线圈的匝数。
应理解的是，本公开实施例中，射频单元101可用于收发信息或通话过程中，信号的接收和发送，具体地，将来自基站的下行数据接收后，给处理器(包括第一控制模块)110处理；另外，将上行的数据发送给基站。通常，射频单元101包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元101还可以通过无线通信系统与网络和其他设备通信。
电子设备通过网络模块102为用户提供了无线的宽带互联网访问，如帮助用户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元103可以将射频单元101或网络模块102接收的或者在存储器109中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元103还可以提供与电子设备100执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元103包括扬声器、蜂鸣器以及受话器等。
输入单元104用于接收音频或视频信号。输入单元104可以包括图形处理器(Graphics Processing Unit，GPU)1041和麦克风1042，图形处理器1041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元106上。经图形处理器1041处理后的图像帧可以存储在存储器109(或其它存储介质)中或者经由射频单元101或网络模块102进行发送。麦克风1042可以接收声音，并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元101发送到移动通信基站的格式输出。
电子设备100还包括至少一种传感器105，比如光传感器、运动传感器以及其他传感器。具体地，光传感器包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板1061的亮度，接近传感器可在电子设备100移动到耳边时，关闭显示面板1061和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别电子设备姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；传感器105还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等，在此不再赘述。
显示单元106用于显示由用户输入的信息或提供给用户的信息。显示单元106可包括显示面板1061，可以采用液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板1061。
用户输入单元107可用于接收输入的数字或字符信息，以及产生与电子设备的用户设置以及功能控制有关的键信号输入。具体地，用户输入单元107包括触控面板1071以及其他输入设备1072。触控面板1071，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板1071上或在触控面板1071附近的操作)。触控面板1071可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器(包括第一控制模块)110，接收处理器(包括第一控制模块)110发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板1071。除了触控面板1071，用户输入单元107还可以包括其他输入设备1072。具体地，其他输入设备1072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
进一步的，触控面板1071可覆盖在显示面板1061上，当触控面板1071 检测到在其上或附近的触摸操作后，传送给处理器(包括第一控制模块)110以确定触摸事件的类型，随后处理器(包括第一控制模块)110根据触摸事件的类型在显示面板1061上提供相应的视觉输出。虽然在图8中，触控面板1071与显示面板1061是作为两个独立的部件来实现电子设备的输入和输出功能，但是在某些实施例中，可以将触控面板1071与显示面板1061集成而实现电子设备的输入和输出功能，具体此处不做限定。
接口单元108为外部装置与电子设备100连接的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元108可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到电子设备100内的一个或多个元件或者可以用于在电子设备100和外部装置之间传输数据。
存储器109可用于存储软件程序以及各种数据。存储器109可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器109可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器(包括第一控制模块)110是电子设备的控制中心，利用各种接口和线路连接整个电子设备的各个部分，通过运行或执行存储在存储器109内的软件程序和/或模块，以及调用存储在存储器109内的数据，执行电子设备的各种功能和处理数据，从而对电子设备进行整体监控。处理器(包括第一控制模块)110可包括一个或多个处理单元；可选地，处理器(包括第一控制模块)110可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器(包括第一控制模块)110中。
电子设备100还可以包括给各个部件供电的电源111(比如电池)，可选 地，电源111可以通过电源管理系统与处理器(包括第一控制模块)110逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外，电子设备100包括一些未示出的功能模块，在此不再赘述。
请参考图9，图9为本公开实施例五提供的一种电子设备的结构示意图，其包括：
第一获取模块31，用于获取接收线圈与无线充电设备的发射线圈之间的磁耦合强度相关参数；
第一调整模块32，用于根据所述磁耦合强度相关参数，控制第一开关模块中的至少两个第一开关的通断，以调整所述接收线圈中有效工作的子线圈的匝数。
本公开实施例中，通过根据电子设备的接收线圈与无线充电设备的发射线圈之间的磁耦合强度相关参数，控制第一开关模块中至少两个第一开关的通断来调整接收线圈中有效工作的子线圈的匝数，从而调整接收线圈的有效阻抗，进而在保证充电效率(充电速度)的前提下降低电子设备在充电时的温升，同时还可以降低充电损耗。
具体地，所述第一调整模块32包括：
第一控制单元，用于当所述磁耦合强度相关参数表示所述接收线圈与所述发射线圈处于强耦合状态时，控制所述第一开关模块中的至少两个第一开关的通断，以减小所述接收线圈中有效工作的子线圈匝数；
第二控制单元，用于当所述磁耦合强度相关参数表示所述接收线圈与所述发射线圈处于弱耦合状态时，控制所述第一开关模块中的至少两个第一开关的通断，以增加所述接收线圈中有效工作的子线圈匝数。
请参考图10，图10为本公开实施例六提供的一种无线充电设备的结构示意图，其包括：
第二获取模块41，用于获取发射线圈与电子设备的接收线圈之间的磁耦合强度相关参数；
第二调整模块42，用于根据所述磁耦合强度相关参数，控制第二开关模块中的至少两个第二开关的通断，以调整所述发射线圈中有效工作的子线圈的匝数。
本公开实施例中，通过根据无线充电设备中的发射线圈与电子设备中的接收线圈之间的磁耦合强度相关参数，控制第二开关模块中的第二开关的通断来调整发射线圈中有效工作的子线圈的匝数，从而调整发射线圈的有效阻抗，进而在保证充电效率(快充)的前提下降低无线充电设备在充电时的温升，同时还可以降低充电损耗。
具体地，所述第二调整模块42，包括：
第三控制单元，用于当所述磁耦合强度相关参数表示所述发射线圈与所述接收线圈处于强耦合状态时，控制所述第二开关模块中的至少两个第二开关的通断，以减小所述发射线圈中有效工作的子线圈匝数；
第四控制单元，用于当所述磁耦合强度相关参数表示所述发射线圈与所述接收线圈处于弱耦合状态时，控制所述第二开关模块中的至少两个第二开关的通断，以增加所述发射线圈中有效工作的子线圈匝数。
请参考图11，图11为本公开实施例七提供的一种电子设备的结构示意图，该电子设备500包括处理器501，存储器502，存储在存储器502上并可在所述处理器501上运行的计算机程序，所述处理器501包括第一控制模块，所述计算机程序被处理器501执行时实现如下步骤：
获取接收线圈与无线充电设备的发射线圈之间的磁耦合强度相关参数；
根据所述磁耦合强度相关参数，控制所述第一开关模块中的至少两个第一开关的通断，以调整所述接收线圈中有效工作的子线圈的匝数。
可选地，计算机程序被处理器501执行时还可实现如下步骤：
当所述磁耦合强度相关参数表示所述接收线圈与所述发射线圈处于强耦合状态时，控制所述第一开关模块中的至少两个第一开关的通断，以减小所述接收线圈中有效工作的子线圈匝数；
当所述磁耦合强度相关参数表示所述接收线圈与所述发射线圈处于弱耦合状态时，控制所述第一开关模块中的至少两个第一开关的通断，以增加所述接收线圈中有效工作的子线圈匝数。
可选地，所述磁耦合强度相关参数包括以下至少之一：
所述接收线圈与所述发射线圈的耦合系数；
所述接收线圈与所述发射线圈的互感量；
所述接收线圈与所述发射线圈之间的相对位置；
所述接收线圈中的感应电动势；
传输功率；
传输增益。
该电子设备能够实现上述实施例三提供的无线充电方法的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
请参考图12，图12为本公开实施例八提供的一种无线充电设备的结构示意图，该无线充电设备600包括处理器601，存储器602，存储在存储器602上并可在所述处理器601上运行的计算机程序，所述处理器601包括第二控制模块，所述计算机程序被处理器601执行时实现如下步骤：
获取发射线圈与电子设备的接收线圈之间的磁耦合强度相关参数；
根据所述磁耦合强度相关参数，控制所述第二开关模块中的至少两个第二开关的通断，以调整所述发射线圈中有效工作的子线圈的匝数。
可选地，计算机程序被处理器601执行时还可实现如下步骤：
当所述磁耦合强度相关参数表示所述发射线圈与所述接收线圈处于强耦合状态时，控制所述第二开关模块中的至少两个第二开关的通断，以减小所述发射线圈中有效工作的子线圈匝数；
当所述磁耦合强度相关参数表示所述发射线圈与所述接收线圈处于弱耦合状态时，控制所述第二开关模块中的至少两个第二开关的通断，以增加所述发射线圈中有效工作的子线圈匝数。
可选地，所述磁耦合强度相关参数包括以下至少之一：
所述接收线圈与所述发射线圈的耦合系数；
所述接收线圈与所述发射线圈的互感量；
所述接收线圈与所述发射线圈之间的相对位置；
所述接收线圈中的感应电动势；
传输功率；
传输增益。
该无线充电设备能够实现上述实施例四中的无线充电方法的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本公开实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述无线充电方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
上面结合附图对本公开的实施例进行了描述，但是本公开并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本公开的启示下，在不脱离本公开宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本公开的保护之内。

Claims (14)

  1. 一种电子设备，包括：
    接收线圈、接收电路、第一开关模块和第一控制模块；
    所述接收电路包括两个接入端；
    所述接收线圈包括至少两匝子线圈，所述接收线圈包括两引线端，所述接收线圈的其中一个引线端与所述接收电路的其中一个接入端连接；
    所述第一开关模块包括至少两个第一开关，每一所述第一开关的控制端与所述第一控制模块连接，所述第一开关的第一端与所述接收线圈的其中一匝子线圈连接，所述第一开关的第二端与所述接收电路的另一个接入端连接；
    所述第一控制模块，用于根据所述接收线圈与无线充电设备的发射线圈之间的磁耦合强度相关参数，控制所述第一开关模块中的至少两个第一开关的通断，以调整所述接收线圈中有效工作的子线圈的匝数。
  2. 根据权利要求1所述的电子设备，其中，所述接收线圈包括正面线圈和反面线圈，所述正面线圈的子线圈匝数与所述反面线圈的子线圈匝数相同，所述正面线圈的每一匝子线圈分别与所述反面线圈的对应匝子线圈并联。
  3. 一种无线充电设备，包括：
    发射线圈、发射电路、第二开关模块和第二控制模块；
    所述发射电路包括两个接入端；
    所述发射线圈包括至少两匝子线圈，所述发射线圈包括两引线端，所述发射线圈的其中一个引线端与所述发射电路的其中一个接入端连接；
    所述第二开关模块包括至少两个第二开关，每一所述第二开关的控制端与所述第二控制模块连接，所述第二开关的第一端与所述发射线圈的其中一匝子线圈连接，所述第二开关的第二端与所述发射电路的另一个接入端连接；
    所述第二控制模块，用于根据所述发射线圈与电子设备的接收线圈之间的磁耦合强度相关参数，控制所述第二开关模块中的至少两个第二开关的通断，以调整述所述发射线圈中有效工作的子线圈的匝数。
  4. 根据权利要求3所述的无线充电设备，其中，所述发射线圈包括正面线圈和反面线圈，所述正面线圈的子线圈匝数与所述反面线圈的子线圈匝数 相同，所述正面线圈的每一匝子线圈分别与所述反面线圈的对应匝子线圈并联。
  5. 一种无线充电方法，应用于权利要求1或2所述的电子设备，包括：
    获取接收线圈与无线充电设备的发射线圈之间的磁耦合强度相关参数；
    根据所述磁耦合强度相关参数，控制第一开关模块中的至少两个第一开关的通断，以调整所述接收线圈中有效工作的子线圈的匝数。
  6. 根据权利要求5所述的无线充电方法，其中，所述根据所述磁耦合强度相关参数，控制第一开关模块中的至少两个第一开关的通断，以调整所述接收线圈中有效工作的子线圈的匝数的步骤包括：
    当所述磁耦合强度相关参数表示所述接收线圈与所述发射线圈处于强耦合状态时，控制所述第一开关模块中的至少两个第一开关的通断，以减小所述接收线圈中有效工作的子线圈匝数；
    当所述磁耦合强度相关参数表示所述接收线圈与所述发射线圈处于弱耦合状态时，控制所述第一开关模块中的至少两个第一开关的通断，以增加所述接收线圈中有效工作的子线圈匝数。
  7. 根据权利要求5所述的无线充电方法，其中，所述磁耦合强度相关参数包括以下至少之一：
    所述接收线圈与所述发射线圈的耦合系数；
    所述接收线圈与所述发射线圈的互感量；
    所述接收线圈与所述发射线圈之间的相对位置；
    所述接收线圈中的感应电动势；
    传输功率；
    传输增益。
  8. 一种无线充电方法，应用于权利要求3或4所述的无线充电设备，包括：
    获取发射线圈与电子设备的接收线圈之间的磁耦合强度相关参数；
    根据所述磁耦合强度相关参数，控制第二开关模块中的至少两个第二开关的通断，以调整所述发射线圈中有效工作的子线圈的匝数。
  9. 根据权利要求8所述的无线充电方法，其中，所述根据所述磁耦合强 度相关参数，控制第二开关模块中的至少两个第二开关的通断，以调整所述发射线圈中有效工作的子线圈的匝数的步骤包括：
    当所述磁耦合强度相关参数表示所述发射线圈与所述接收线圈处于强耦合状态时，控制所述第二开关模块中的至少两个第二开关的通断，以减小所述发射线圈中有效工作的子线圈匝数；
    当所述磁耦合强度相关参数表示所述发射线圈与所述接收线圈处于弱耦合状态时，控制所述第二开关模块中的至少两个第二开关的通断，以增加所述发射线圈中有效工作的子线圈匝数。
  10. 根据权利要求8所述的无线充电方法，其中，所述磁耦合强度相关参数包括以下至少之一：
    所述接收线圈与所述发射线圈的耦合系数；
    所述接收线圈与所述发射线圈的互感量；
    所述接收线圈与所述发射线圈之间的相对位置；
    所述接收线圈中的感应电动势；
    传输功率；
    传输增益。
  11. 一种电子设备，包括：
    第一获取模块，用于获取接收线圈与无线充电设备的发射线圈之间的磁耦合强度相关参数；
    第一调整模块，用于根据所述磁耦合强度相关参数，控制第一开关模块中的至少两个第一开关的通断，以调整所述接收线圈中有效工作的子线圈的匝数。
  12. 一种无线充电设备，包括：
    第二获取模块，用于获取发射线圈与电子设备的接收线圈之间的磁耦合强度相关参数；
    第二调整模块，用于根据所述磁耦合强度相关参数，控制第二开关模块中的至少两个第二开关的通断，以调整所述发射线圈中有效工作的子线圈的匝数。
  13. 一种电子设备，包括处理器、存储器及存储在所述存储器上并可在 所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求5至7中任一项所述的无线充电方法的步骤。
  14. 一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求5至7中任一项所述的无线充电方法，或实现如权利要求8至10中任一项所述的无线充电方法。
PCT/CN2019/094482 2018-07-10 2019-07-03 电子设备、无线充电设备和无线充电方法 Ceased WO2020011072A1 (zh)

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