WO2021092870A1 - 电子设备、无线充电装置、系统及方法 - Google Patents

电子设备、无线充电装置、系统及方法 Download PDF

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Publication number
WO2021092870A1
WO2021092870A1 PCT/CN2019/118611 CN2019118611W WO2021092870A1 WO 2021092870 A1 WO2021092870 A1 WO 2021092870A1 CN 2019118611 W CN2019118611 W CN 2019118611W WO 2021092870 A1 WO2021092870 A1 WO 2021092870A1
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WO
WIPO (PCT)
Prior art keywords
wireless
charging
circuit
charged
receiving circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/118611
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English (en)
French (fr)
Inventor
杨军
万世铭
张俊
张加亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to PCT/CN2019/118611 priority Critical patent/WO2021092870A1/zh
Priority to EP19952343.2A priority patent/EP4060852B1/en
Priority to CN201980100124.8A priority patent/CN114365371A/zh
Publication of WO2021092870A1 publication Critical patent/WO2021092870A1/zh
Priority to US17/743,370 priority patent/US12132329B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • 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
    • 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
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • 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
    • 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
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and 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
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/40—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data
    • H02J7/42—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries characterised by the exchange of charge or discharge related data with electronic devices having internal batteries, e.g. mobile phones
    • 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
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/92—Regulation of charging or discharging current or voltage with prioritisation of loads or sources
    • 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
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/94—Regulation of charging or discharging current or voltage in response to battery current
    • 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
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/96—Regulation of charging or discharging current or voltage in response to battery voltage
    • 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
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/971—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/975—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H02J7/977—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H04B5/26—Inductive coupling using coils
    • H04B5/263—Multiple coils at either side
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
    • 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
    • H02J2105/00—Networks for supplying or distributing electric power characterised by their spatial reach or by the load
    • H02J2105/40—Networks for supplying or distributing electric power characterised by their spatial reach or by the load characterised by the loads connecting to the networks or being supplied by the networks
    • H02J2105/44—Portable electronic devices

Definitions

  • the present disclosure relates to the field of wireless charging technology, and in particular to an electronic device, a wireless charging device, a system and a method.
  • wireless charging technology With the popularization of wireless charging technology, more and more electronic devices (such as smart phones, tablet computers, etc.) support the wireless charging function.
  • electronic devices such as smart phones, tablet computers, etc.
  • the power adapter In the process of wireless charging, the power adapter is generally connected to the wireless charging base, and the output power of the power adapter is transmitted wirelessly (such as electromagnetic signals or electromagnetic waves) to the electronic device through the wireless charging base to wirelessly charge the electronic device .
  • wirelessly such as electromagnetic signals or electromagnetic waves
  • the present disclosure provides an electronic device, a wireless charging device, a system and a method, which can increase the wireless charging power, thereby increasing the wireless charging rate.
  • a device to be charged including: a battery; at least two wireless receiving circuits, respectively connected to the battery, and the at least two wireless receiving circuits are used to receive electromagnetic signals emitted by a wireless charging device , And convert the electromagnetic signal into an output current to charge the battery; and a control module, respectively connected to the at least two wireless receiving circuits, for controlling the at least two wireless receiving circuits in different charging stages At least one of them charges the battery.
  • a device to be charged which is characterized by comprising: a battery; at least two wireless receiving circuits connected to the battery respectively, and the at least two wireless receiving circuits are configured to receive wireless charging The electromagnetic signal emitted by the device and converts the electromagnetic signal into an output voltage and an output current to charge the battery; and a control module, respectively connected to the at least two wireless receiving circuits, for use in different charging modes, At least one of the at least two wireless receiving circuits is controlled to charge the battery; wherein, in different charging modes, the charging power provided to the battery is different.
  • a wireless charging device including: a charging interface for receiving electric energy input by a power supply device; at least two wireless transmitting circuits connected to the charging interface, the at least two The wireless transmission circuits are respectively used to convert the electric energy into electromagnetic signals for transmission to perform wireless charging for the device to be charged; and the control module is respectively connected to the at least two wireless transmission circuits and is used to transmit the electric energy to the device to be charged.
  • Different charging stages control at least one of the at least two wireless transmitting circuits to transmit the electromagnetic signal.
  • a wireless charging device including: a charging interface for receiving electric energy input by a power supply device; at least two wireless transmitting circuits connected to the charging interface, the at least two The wireless transmission circuits are respectively used to convert the electric energy into electromagnetic signals for transmission to perform wireless charging for the device to be charged; and the control module is respectively connected to the at least two wireless transmission circuits and is used to transmit the electric energy to the device to be charged.
  • the control module is respectively connected to the at least two wireless transmission circuits and is used to transmit the electric energy to the device to be charged.
  • at least one of the at least two wireless transmitting circuits is controlled to transmit the electromagnetic signal; wherein, in different charging modes, the charging power output by the wireless charging device is different.
  • a wireless charging system including: a device to be charged and a wireless charging device; the device to be charged includes a battery and at least two wireless receiving coils; the wireless charging device includes at least two wireless charging devices; Transmitting coil; wherein the at least two wireless transmitting coils are used to convert electrical energy into electromagnetic signals for transmission; the at least two wireless receiving coils are used to receive the electromagnetic signals emitted by the wireless charging device in different charging stages Signal; wherein the at least two wireless transmitting coils and the at least two wireless receiving coils are matched one by one.
  • a wireless charging method is provided, which is applied to a device to be charged, including: receiving electromagnetic signals emitted by a wireless charging device through a first wireless receiving circuit in the device to be charged in different charging stages , And/or receive the electromagnetic signal emitted by the wireless charging device through the second wireless receiving circuit in the device to be charged; and respectively convert the electromagnetic signal into output current for the battery in the device to be charged Recharge.
  • a wireless charging method is provided, which is applied to a device to be charged, including: receiving electromagnetic waves emitted by a wireless charging device through a first wireless receiving circuit in the device to be charged in different charging modes. Signal, and/or receive the electromagnetic signal emitted by the wireless charging device through the second wireless receiving circuit in the device to be charged; Battery charging; wherein, in different charging modes, the charging power provided to the battery is different.
  • a wireless charging method is provided, which is applied to a wireless charging device, including: in different charging stages of a device to be charged, passing through a first wireless transmission circuit and/or a second wireless charging device in the wireless charging device 2.
  • a wireless transmitting circuit which converts the electric energy input by the power supply device into an electromagnetic signal for transmission, so as to wirelessly charge the equipment to be charged.
  • a wireless charging method is provided, which is applied to a wireless charging device, including: in different charging modes of a device to be charged, passing through a first wireless transmitting circuit and/or in the wireless charging device
  • the second wireless transmitting circuit converts the electrical energy input by the power supply device into electromagnetic signals for transmission to wirelessly charge the equipment to be charged; wherein, in different charging modes, the wireless charging device outputs different charging powers.
  • the wireless charging device includes multiple wireless transmitting circuits, and the device to be charged includes multiple wireless receiving circuits, so that the two can form multiple wireless charging channels during wireless charging.
  • the wireless charging power can be greatly increased (for example, when two wireless charging channels are used, the charging power can almost be doubled; and if you use In three wireless charging, the charging power can be almost three times that of a single channel, and so on), thereby accelerating the charging speed of the battery.
  • Fig. 1 is a schematic structural diagram of a wireless charging system provided by an exemplary embodiment of the present disclosure.
  • Fig. 2 is a schematic structural diagram of another wireless charging system provided by an exemplary embodiment of the present disclosure.
  • Fig. 3 is a schematic structural diagram of a device to be charged according to an exemplary embodiment of the present disclosure.
  • Fig. 4 is a schematic structural diagram of another device to be charged according to an exemplary embodiment of the present disclosure.
  • Fig. 5 is a schematic structural diagram of still another device to be charged according to an exemplary embodiment of the present disclosure.
  • Fig. 6 is a schematic structural diagram of still another device to be charged according to an exemplary embodiment of the present disclosure.
  • Fig. 7 is a schematic structural diagram of a wireless charging device provided by an exemplary embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of another wireless charging device provided by an exemplary embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of still another wireless charging system provided by an exemplary embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of still another wireless charging system provided by an exemplary embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of still another wireless charging system provided by an exemplary embodiment of the present disclosure.
  • Fig. 12 is a flowchart of a wireless charging method provided by an exemplary embodiment of the present disclosure.
  • FIG. 13 is a flowchart of another wireless charging method provided by an exemplary embodiment of the present disclosure.
  • FIG. 14 is a flowchart of still another wireless charging method provided by an exemplary embodiment of the present disclosure.
  • FIG. 15 is a flowchart of still another wireless charging method provided by an exemplary embodiment of the present disclosure.
  • FIG. 16 is a flowchart of still another wireless charging method provided by an exemplary embodiment of the present disclosure.
  • FIG. 17 is a flowchart of still another wireless charging method provided by an exemplary embodiment of the present disclosure.
  • FIG. 18 is a flowchart of still another wireless charging method provided by an exemplary embodiment of the present disclosure.
  • FIG. 19 is a flowchart of still another wireless charging method provided by an exemplary embodiment of the present disclosure.
  • connection should be understood in a broad sense, for example, it may be an electrical connection or a communication connection; it may be a direct connection or Indirectly connected.
  • connection should be understood in a broad sense, for example, it may be an electrical connection or a communication connection; it may be a direct connection or Indirectly connected.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can indicate the existence of A alone, B alone, and both A and B.
  • the symbol “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • a single-channel wireless charging method is usually used for wireless charging between the wireless charging base and the electronic device.
  • the current coupled to the receiving coil cannot be further increased, and the power can only be increased by increasing the voltage on the rectifier circuit; but according to the requirements of the existing integrated circuit technology, the voltage exceeds about 30V, the technology and cost The requirements will be very high.
  • the wireless charging system provided by the embodiments of the present disclosure can use multiple wireless charging paths for charging, so that the wireless charging power can be increased, thereby increasing the wireless charging rate.
  • Fig. 1 is a schematic structural diagram of a wireless charging system provided by an exemplary embodiment of the present disclosure.
  • the wireless charging system 1 includes: a power supply device 11, a wireless charging device 12 and a device 13 to be charged.
  • the power supply device 11 may be, for example, a power adapter, a power bank (Power Bank) and other equipment.
  • the wireless charging device 12 may be, for example, a wireless charging base.
  • the output current is transmitted to the wireless charging device 12.
  • the wireless charging device 12 includes: a first wireless transmitting circuit 121a, a second wireless transmitting circuit 121b, a control module 122, and a charging interface 123.
  • the wireless charging device 12 is connected to the power supply device 11 through the charging interface 123 and receives the electric energy output by the power supply device 11.
  • the charging interface 123 may be, for example, a USB 2.0 interface, a Micro USB interface, or a USB TYPE-C interface. In some embodiments, the charging interface 123 may also be a lightning interface, or any other type of parallel port or serial port that can be used for charging.
  • the wireless charging device 12 can also communicate with the power supply device 11 through the charging interface 123 without setting an additional communication interface or other wireless communication module, which can simplify the implementation of the wireless charging device 12.
  • the charging interface 123 is a USB interface
  • the wireless charging device 12 and the power supply device 11 can communicate based on the data lines (such as D+ and/or D- lines) in the USB interface.
  • the charging interface 123 is a USB interface (such as a USB TYPE-C interface) that supports a power delivery (PD) communication protocol, and the wireless charging device 12 and the power supply device 11 can communicate based on the PD communication protocol.
  • PD power delivery
  • the wireless charging device 12 may also be communicatively connected with the power supply device 11 through other communication methods other than the charging interface 123.
  • the wireless charging device 12 may communicate with the power supply device 11 in a wireless manner, such as Near Field Communication (NFC) and Bluetooth communication.
  • NFC Near Field Communication
  • Bluetooth Bluetooth
  • the first wireless transmitting circuit 121a and the second wireless transmitting circuit 121b are respectively connected to the charging interface 123, and are used to respectively convert the electric energy output by the power supply device 11 into electromagnetic signals (or electromagnetic waves) for transmission, so as to perform wireless charging for the device 13 to be charged .
  • the first wireless transmitting circuit 121a and the second wireless transmitting circuit 121b may include: an inverse rectifier circuit and a transmitting coil (or transmitting antenna).
  • the reverse rectifier circuit is used to convert the direct current output by the power supply device 11 into high-frequency alternating current, and convert the high-frequency alternating current into an electromagnetic signal (or electromagnetic wave) through a transmitting coil or a transmitting antenna and transmit it out.
  • the first wireless transmitting circuit 121a may include, for example, a first reverse rectifier circuit 1211a and a first transmitting coil 1212a.
  • the second wireless transmitting circuit 121b includes: a second inverse rectifier circuit 1211b and a second transmitting coil 1212b.
  • the control module 122 is respectively connected to the first wireless transmitting circuit 121a and the second wireless transmitting circuit 121b, and is used to control the first wireless transmitting circuit 121a and the second wireless transmitting circuit 121b to transmit the above electromagnetic waves during different charging stages of the device 13 to be charged.
  • Signal or electromagnetic wave
  • the first wireless transmitting circuit 121a and the second wireless transmitting circuit 121b are controlled to wirelessly charge the device 13 to be charged through the first wireless transmitting circuit 121a and/or the second wireless transmitting circuit 121b.
  • the control module 122 may be implemented by, for example, a Micro Control Unit (MCU).
  • MCU Micro Control Unit
  • the battery charging process may include the following charging stages: trickle charging stage, constant current charging stage, and constant voltage charging stage.
  • the trickle charging stage the battery discharged to the preset voltage threshold is precharged (that is, restorative charging).
  • the trickle charging current is usually one-tenth of the constant current charging current.
  • the battery In the constant current charging stage, the battery is charged with a constant current, and the battery voltage rises rapidly. When the battery voltage reaches the expected voltage threshold (or cut-off voltage) of the battery, it will switch to the constant voltage charging stage.
  • the battery In the constant voltage charging stage, the battery is charged with a constant voltage, and the charging current gradually decreases.
  • the charging current drops to the set current threshold (the current threshold is usually one-tenth of the charging current value in the constant current charging stage) Or lower, optionally, the current threshold may be tens of milliamperes or lower), and the battery is fully charged.
  • the constant current charging stage mentioned in the embodiments of the present disclosure does not require the charging current to remain completely constant.
  • the constant current charging stage can also be charged in a multi-stage constant current charging method.
  • the segmented constant current charging can have M constant current stages (M is an integer not less than 2), the segmented constant current charging starts the first stage charging with a predetermined charging current, and the M constant current stages of the segmented constant current charging
  • M is an integer not less than 2
  • the flow stage is executed sequentially from the first stage to the Mth stage.
  • the current will become smaller; when the battery voltage reaches the charging voltage threshold corresponding to this constant current stage, it will go to the next constant current stage.
  • the current conversion process between two adjacent constant current stages can be gradual or stepwise jump changes.
  • the charging current is the largest, which causes the battery voltage to increase rapidly.
  • the device to be charged 13 may be, for example, a terminal or an electronic device.
  • the terminal or electronic device includes but is not limited to being set to be connected via a wired line, such as via a public switched telephone network (PSTN) or a digital subscriber line (digital subscriber line). line, DSL), digital cable, direct cable connection, and/or another data connection/network and/or via, for example, cellular network, wireless local area network (WLAN), such as handheld digital video broadcasting (digital video broadcasting) broadcasting handheld, DVB-H) network digital TV network, satellite network, amplitude modulation-frequency modulation (AM-FM) broadcast transmitter, and/or a device for receiving/transmitting communication signals on the wireless interface of another terminal .
  • PSTN public switched telephone network
  • DVB-H digital subscriber line
  • AM-FM amplitude modulation-frequency modulation
  • a communication terminal set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a “wireless terminal”, and/or a “mobile terminal”.
  • terminals include, but are not limited to, satellite or cellular phones; personal communication system (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet Personal digital assistant (PDA) with internet access, web browser, memo pad, calendar, and/or global positioning system (GPS) receiver; and regular laptop and/or handheld receiver Device or other electronic device including a radio telephone transceiver.
  • the terminal can also include, but is not limited to, electronic book readers, smart wearable devices, mobile power sources (such as power banks, travel chargers), electronic cigarettes, wireless mice, wireless keyboards, wireless headsets, Bluetooth speakers, etc. Rechargeable electronic equipment.
  • the device to be charged 13 includes a battery 131, a first wireless receiving circuit 132 a, a second wireless receiving circuit 132 b, and a control module 133.
  • the battery 131 may be, for example, a single battery or a battery cell, or a lithium battery including a plurality of battery cells connected in series. Alternatively, the battery 131 may also include a plurality of battery cells connected in series, and each battery cell is a lithium battery including a single battery cell or a plurality of battery cells. When the battery 131 includes multiple battery cells or multiple battery cells, each battery cell or battery cell can be charged separately, or multiple battery cells or multiple battery cells can be charged as a whole.
  • the following takes the battery 131 including two battery cells connected in series, and each battery cell contains a single cell as an example to illustrate how the use of multiple battery cells in series during high current charging can increase the charging speed and reduce the waiting time.
  • the calorific value of the equipment :
  • the battery structure can be modified to use multiple battery cells connected in series and directly charge the multiple battery cells, namely The voltage output by the adapter is directly applied to the two ends of each battery cell among the plurality of battery cells.
  • the single battery cell solution that is, the capacity of a single battery cell before the improvement is the same as the total capacity of multiple battery cells connected in series after the improvement
  • the charging current of the cell is about 1/N of the charging current required by a single battery cell (N is the number of battery cells connected in series).
  • N is the number of battery cells connected in series.
  • the battery 131 may also be a lithium battery including a plurality of battery cells connected in parallel, or may include a plurality of battery cells connected in parallel, and each battery cell may be a lithium battery including a single or multiple battery cells.
  • the first wireless receiving circuit 132a and the second wireless receiving circuit 132b are respectively used for receiving electromagnetic signals (or electromagnetic waves) emitted by the wireless charging device 12, and converting the electromagnetic signals (or electromagnetic waves) into direct current for output.
  • both the first wireless receiving circuit 132a and the second wireless receiving circuit 132b may include: a receiving coil (or a receiving antenna) and a shaping circuit connected to the receiving coil or the receiving antenna and including a rectifier circuit and/or a filter circuit.
  • the first wireless receiving circuit 132a uses a receiving coil or receiving The antenna converts the electromagnetic signal (or electromagnetic wave) emitted by the first wireless transmitting circuit 121a into alternating current, and rectifies and/or filters the alternating current through a shaping circuit, thereby converting the alternating current into a stable direct current to charge the battery 131;
  • the second wireless receiving circuit 132b converts the electromagnetic signal (or electromagnetic wave) emitted by the second wireless transmitting circuit 121b into alternating current through a receiving coil or a receiving antenna, and performs operations such as rectification and/or filtering on the alternating current through a shaping circuit, thereby the alternating current It is converted into a stable direct current to charge the battery 131.
  • the first wireless receiving circuit 132a may also be coupled with the second wireless transmitting circuit 121b, and the second wireless receiving circuit 132b may be coupled with the first wireless transmitting circuit 121a.
  • the first wireless receiving circuit 132a may also be coupled with the second wireless transmitting circuit 121b, and the second wireless receiving circuit 132b may be coupled with the first wireless transmitting circuit 121a. That is, in practical applications, the coupling relationship between the two wireless transmitting circuits and the two wireless receiving circuits is not limited, for example, the coupling connection can be made according to their positional relationship.
  • the embodiment of the present disclosure does not specifically limit the specific form of the shaping circuit and the output voltage and output current form of the first wireless receiving circuit 132a and the second wireless receiving circuit 132b obtained after the shaping circuit is shaped.
  • the shaping circuit may include: a rectifier circuit and a filter circuit.
  • the output voltages of the first wireless receiving circuit 132a and the second wireless receiving circuit 132b may be stable voltages obtained after filtering.
  • the shaping circuit may only include: a rectifier circuit.
  • the output voltage of the first wireless receiving circuit 132a and the second wireless receiving circuit 132b may be a pulsating waveform voltage obtained after rectification, and the pulsating waveform voltage is directly applied to both ends of the battery 131 to charge the battery 131. It can be understood that the output current of the first wireless receiving circuit 132a and the second wireless receiving circuit 132b can charge the battery 131 in an intermittent manner, and the period of the output current of the first wireless receiving circuit 132a and the second wireless receiving circuit 132b can follow The frequency of the AC power input to the wireless charging system 1, for example, the AC power grid changes.
  • the frequency corresponding to the period of the output current of the first wireless receiving circuit 132a and the second wireless receiving circuit 132b is an integer multiple or a reciprocal multiple of the power grid frequency.
  • the current waveforms corresponding to the output currents of the first wireless receiving circuit 132a and the second wireless receiving circuit 132b can be It is composed of one or a group of pulses synchronized with the grid. The pulsating form of voltage/current changes periodically. Compared with the constant direct current, it can reduce the lithium evolution of lithium batteries, increase the service life of the battery, and help reduce the polarization effect of the battery, increase the charging speed, and reduce the battery Heat, so as to ensure the safety and reliability of the charging equipment.
  • the first wireless receiving circuit 132a may include: a first receiving coil 1321a and a first shaping circuit 1322a.
  • the second wireless receiving circuit 132b may include: a second receiving coil 1321b and a second shaping circuit 1322b.
  • the first receiving coil 1321a and the second receiving coil 1321b are arranged in the same plane in the device to be charged 13, for example, they can be arranged along the long side of the device to be charged 13, or they can also be arranged along the long side of the device to be charged. 13 wide side arrangement. Such a layout is more conducive to the heat dissipation of the device 13 to be charged, and has a better effect on temperature control.
  • the control module 133 may be implemented by, for example, an independent MCU, or may also be implemented by an application processor (AP) inside the device 13 to be charged.
  • AP application processor
  • the control module 133 is respectively connected to the first wireless receiving circuit 132a and the second wireless receiving circuit 132b, and is used for controlling the first wireless receiving circuit 132a and/or the second wireless receiving circuit 132b to charge the battery 131 in different charging stages. That is, the first wireless receiving circuit 132a and the second wireless receiving circuit 132b are controlled to charge the battery 131 through the first wireless receiving circuit 132a and/or the second wireless receiving circuit 132b.
  • the wireless charging device 12 and the device to be charged 13 in FIG. 1 respectively include two wireless transmitting circuits and two wireless receiving circuits as examples, the wireless charging device 12 may also include more Wireless transmitting circuits (such as the three wireless transmitting circuits in FIG. 2), correspondingly, the device to be charged 13 may also include more wireless receiving circuits (for example, the three wireless receiving circuits in FIG. 2), correspondingly, The control module 133 is configured to control at least one of the at least two wireless receiving circuits to charge the battery 131.
  • Fig. 2 is a schematic structural diagram of another wireless charging system provided by an exemplary embodiment of the present disclosure.
  • the wireless charging device 12 in FIG. 2 may further include: a third wireless transmitting circuit 121c, and the device to be charged 13 may further include: a third wireless receiving circuit 132c.
  • the control module 122 in the wireless charging device 12 is further used to control the first wireless transmitting circuit 121a, the second wireless transmitting circuit 121b, and the third wireless transmitting circuit 121c during different charging stages to pass the first wireless transmitting circuit 121a, the second wireless transmitting circuit 121a, and the second wireless transmitting circuit 121a. All or part of the wireless transmitting circuit 121b and the third wireless transmitting circuit 121c transmits electromagnetic signals.
  • the control module 133 in the device to be charged 13 is further used to control the first wireless receiving circuit 132a, the second wireless receiving circuit 132b, and the third wireless receiving circuit 132c in different charging stages to pass the first wireless receiving circuit 132a, the second wireless receiving circuit 132a, and the second wireless receiving circuit 132c. All or part of the wireless receiving circuit 132b and the third wireless receiving circuit 132c charge the battery 131.
  • first”, “second”, “third”, etc. are used to distinguish different wireless transmitting circuits and wireless receiving circuits, in the actual charging process, different wireless transmitting circuits and wireless receiving circuits are The coupling relationship of is not restricted by “first”, “second”, and “third”.
  • the coupling can be performed according to the distance relationship between the wireless transmitting circuit and the wireless receiving circuit, and correspondingly, one or more wireless charging channels are formed.
  • the wireless charging channel is a wireless virtual channel composed of electromagnetic waves or electromagnetic signals.
  • the wireless charging device includes multiple wireless transmitting circuits, and the device to be charged includes multiple wireless receiving circuits, so that the two can form multiple wireless charging channels during wireless charging.
  • the wireless charging power can be greatly improved (for example, when two wireless charging channels are used, the charging power can almost be doubled; and if three wireless charging channels are used, , The charging power can be almost three times that of a single channel, and so on), thereby accelerating the charging speed of the battery.
  • multiple wireless charging channels may be used to charge the battery 131 during the constant current charging stage, such as two wireless charging channels in FIG. 1 or three wireless charging channels in FIG. 2. That is, the control module 122 in the wireless charging device 12 controls each wireless transmitting circuit, and the control module 133 in the device to be charged 13 controls each wireless receiving circuit to form multiple wireless charging channels to charge the battery 131 .
  • a single channel can still be used for charging, as shown in one of the two wireless charging channels in Figure 1, or in Figure 2.
  • the trickle charging phase, the constant current charging phase, and the constant voltage charging phase are taken as examples above, the “different charging phases” described in the present disclosure are not limited thereto.
  • the trickle charging stage and the constant current charging stage but not the constant voltage charging stage; or only include the constant current charging stage and the constant voltage charging stage, but not the trickle charging stage. Charging stage.
  • other charging stages are also possible.
  • the device to be charged 13 when the device to be charged 13 is being charged, it may be placed on a wireless charging device that only includes a single wireless transmitting circuit.
  • the specific structure can be seen in FIG. 12.
  • the control module in the device to be charged 13 can also be used to detect the number of wireless transmission circuits included in the wireless charging device, for example, through the wireless transmission of the first wireless receiving circuit 132a and/or the second wireless receiving circuit 132b with the opposite end
  • the circuit communicates to detect the number of wireless transmitting circuits in the wireless charging device.
  • the control module 133 can also be used to control the use of the first wireless receiving circuit 132a or the second wireless receiving circuit 132b to charge the battery 131.
  • the wireless charging channel containing the second wireless receiving circuit 132b is turned off accordingly; or when the second wireless receiving circuit 132b is used, the wireless charging containing the first wireless receiving circuit 132a is turned off accordingly aisle.
  • the wireless charging device includes a wireless transmitting circuit to illustrate how the device to be charged 13 performs wireless charging when the number of coils between the two does not match.
  • the device to be charged 13 includes three wireless receiving circuits, and the wireless charging device includes two wireless transmitting circuits.
  • the device to be charged 13 can still be controlled by the control module 133 to detect the number of wireless transmission circuits included in the wireless charging device. When it is detected that the two do not match, part of the wireless transmission circuit in the device to be charged 13 is used.
  • the receiving circuit and the wireless transmitting circuit of the wireless charging device form a wireless charging channel for wireless charging.
  • the following describes the charging mode of the device to be charged.
  • the device to be charged 13 may support the first charging mode and the wireless charging mode.
  • the charging power provided to the battery 133 in the first charging mode is higher than the charging power provided to the battery 133 in the second charging mode.
  • the first charging mode may be a fast charging mode.
  • the fast charging mode may refer to a charging mode in which the transmission power of the wireless charging device 12 is relatively large (usually greater than or equal to 15W).
  • the second charging mode may be a normal charging mode.
  • the normal charging mode may refer to a charging mode in which the transmission power of the wireless charging device 12 is relatively small (usually less than 15W, and the commonly used transmission power is 5W or 10W). For example, it may be a traditional wireless charging based on the QI standard, the PMA standard, or the A4WP standard. mode.
  • the normal charging mode it usually takes several hours to fully charge a large capacity battery (such as a 3000 mAh capacity battery). Compared with the normal charging mode, the charging time required to fully charge the battery of the same capacity in the fast charging mode can be significantly shortened and the charging speed is faster.
  • the charging current is the largest, which causes the battery voltage to increase rapidly.
  • multiple wireless charging channels can be used to charge the battery 131, such as two wireless charging channels as shown in FIG. 1, or three wireless charging channels as shown in FIG. . That is, the control module 122 in the wireless charging device 12 controls each wireless transmitting circuit, and the control module 133 in the device to be charged 13 controls each wireless receiving circuit to form multiple wireless charging channels to charge the battery 131 .
  • a single channel can still be used for charging, as shown in Figure 1 for one of the two wireless charging channels, or as shown in Figure 2 for the three wireless charging channels. one of them.
  • multiple wireless charging channels may also be used for charging, such as two wireless charging channels in FIG. 1, two or three wireless charging channels in FIG. 2, and so on. That is, the control module 122 in the wireless charging device 12 controls each wireless transmitting circuit, and the control module 133 in the device to be charged 13 controls each wireless receiving circuit to form one or more wireless charging channels. The battery 131 is charged. When only part of the wireless charging channel is used, the unused wireless transmitting circuit and wireless receiving circuit can be turned off by the control module 122 and the control module 133, respectively, to form a part of the wireless charging channel.
  • Fig. 3 is a schematic structural diagram of a device to be charged according to an exemplary embodiment of the present disclosure.
  • the device to be charged 23 in FIG. 3 takes two wireless receiving circuits as an example for description, but as described above, it may also include multiple wireless receiving circuits to charge the battery 131.
  • the device to be charged 23 further includes: a first voltage conversion module 234a and a second voltage conversion module 234b.
  • the first voltage conversion module 234a is connected between the first wireless receiving circuit 132a and the battery 131
  • the second voltage conversion module 234b is connected between the second wireless receiving circuit 132b and the battery 131.
  • the first voltage conversion module 234a and the second voltage conversion module 234b can be converted first to obtain the expected charging voltage and/or charging current of the battery 131.
  • the output voltage and output current of the first wireless receiving circuit 132a are input into the first voltage conversion module 234a; after the first voltage conversion module 234a converts the input voltage, the output voltage and current are directly loaded on the battery 131 Both ends to meet the expected charging voltage and/or charging current requirements of the battery 131.
  • the control module 133 is also used to control the first voltage conversion module 234a and the second voltage conversion module 234b to perform the above-mentioned conversion through the first voltage conversion module 234a and the second voltage conversion module 234b.
  • the control module 133 simultaneously controls the first voltage conversion module 234a and the second voltage conversion module 234b to The above-mentioned conversion is performed by the first voltage conversion module 234a and the second voltage conversion module 234b, respectively.
  • the battery 131 is charged through one of the two wireless charging channels.
  • the control module 133 controls the first voltage conversion module 234a to perform the above conversion; and when the second wireless receiving circuit 132b is used to receive electromagnetic waves, the control module 133 controls the second voltage conversion module 234b Perform the above conversion.
  • the control module 133 controls the first voltage conversion module 234a to perform the above If the second wireless receiving circuit 132b is used to receive electromagnetic waves, the control module 133 controls the second voltage conversion module 234b to perform the above-mentioned conversion.
  • the first voltage conversion module 234a and the second voltage conversion module 234b may be, for example, a BUCK circuit or a charge pump (ChargePump) circuit, or may also be a BOOST boost circuit.
  • the BOOST boost The voltage circuit can be used to boost the voltage output by the first wireless receiving circuit 132a and/or the second wireless receiving circuit 132b, and the present disclosure is not limited thereto.
  • the present disclosure does not limit the conversion ratio of the charge pump. In actual applications, it is set according to actual requirements. For example, it can be set to 1:1, 2:1, 3:1, etc. In addition, when the battery 131 includes multiple battery cells connected in series or multiple battery cells connected in series, the conversion ratio of the charge pump can also be set to 1:2, 1:3, etc. to perform a boost operation, so as to satisfy the battery 131 The charging voltage requirements.
  • the charging voltage and/or charging current output by the first voltage conversion module 234a and/or the second voltage conversion module 234b may be respectively To charge battery cells or cells, multiple battery cells or cells can also be charged as a whole.
  • Fig. 4 is a schematic structural diagram of another device to be charged according to an exemplary embodiment of the present disclosure.
  • the device to be charged 33 shown in FIG. 4 may further include: a third voltage conversion module 334.
  • the third voltage conversion module 334 may also be connected between the second wireless receiving circuit 132b and the battery 131.
  • the wireless charging device in the trickle charging phase and/or constant current charging phase or in the second charging mode described above, or when the wireless charging device only includes a single wireless transmitting circuit, only one wireless charging channel is used for For charging, for example, the wireless charging channel formed by the first wireless transmitting circuit 121a and the first wireless receiving circuit 132a is used to charge the battery 131.
  • the third voltage conversion module 334 can convert the voltage output by the first wireless receiving circuit 132a, and The converted charging voltage/charging current is directly loaded on both ends of the battery 131 to charge it.
  • control module 133 closes the channel between the first voltage conversion module 234a and the battery 131, and controls the third voltage conversion module 334 to work to convert the voltage output by the first wireless receiving circuit 132a.
  • the third voltage conversion module 334 may also be, for example, a BUCK circuit or a charge pump (ChargePump) circuit, or may also be a BOOST boost circuit, etc.
  • the present disclosure is not limited thereto.
  • the charging voltage output by at least one of the first voltage conversion module 234a, the second voltage conversion module 234b, and the third voltage conversion module 334 is sum /Or the charging current can charge each battery cell or cell individually, or multiple battery cells or cells as a whole can be charged.
  • Fig. 5 is a schematic structural diagram of still another device to be charged according to an exemplary embodiment of the present disclosure.
  • the first voltage conversion module 234 a and the second voltage conversion module 234 b in the device to be charged 43 shown in FIG. 5 are combined into one voltage conversion module 234.
  • the voltage conversion module 234 is used to simultaneously convert the charging voltage and/or charging current output by the first wireless receiving circuit 132a and the second wireless receiving circuit 132b .
  • the voltage conversion module 234 is used to charge the charging voltage and/or charging of the first wireless receiving circuit 132a or the second wireless receiving circuit 132b The current is converted at the same time.
  • Fig. 6 is a schematic structural diagram of still another device to be charged according to an exemplary embodiment of the present disclosure.
  • the third voltage conversion module 334 is also connected between the second wireless receiving circuit 132 b and the battery 131.
  • two wireless charging channels can also be used for charging, and the third voltage conversion module 334 can charge
  • the voltages output by the first wireless receiving circuit 132a and the second wireless receiving circuit 132b are converted, and the converted charging voltage/charging current is directly loaded on both ends of the battery 131 to charge it.
  • control module 133 closes the channel between the first voltage conversion module 234a and the battery 131 and the channel between the second voltage conversion module 234b and the battery 131, and controls the third voltage conversion module 334 to work to receive the first wireless
  • the voltages output by the circuit 132a and the second wireless receiving circuit 132b are converted.
  • the control module 133 may also be used to perform wireless charging with the wireless charging device 12 during the wireless charging process of the wireless charging device 12 to be charged equipment 13 (or to be charged equipment 23/33/43/53).
  • Wireless communication For example, wireless communication is performed with the control module 122 in the wireless charging device 12.
  • the control module 133 can send the charging information of the device to be charged 13 (or the device to be charged 23/33/43/53) to the wireless charging device 12.
  • the charging information may include, for example, respective charging information of the first wireless receiving circuit 132a and the second wireless receiving circuit 132b, such as respective output voltages and/or output currents.
  • the wireless charging device 12 adjusts the transmission power of the wireless transmission circuit according to the received information.
  • the present disclosure does not limit the communication mode and communication sequence between the wireless charging device 12 and the device to be charged 13 (or the device to be charged 23/33/43/53).
  • the wireless communication between the wireless charging device 12 and the device to be charged 13 (or the device to be charged 23/33/43/53) may be one-way wireless communication.
  • the device to be charged 13 (or the device to be charged 23/33/43/53) is the initiator of communication, and the wireless charging device 12 is the receiver of communication.
  • the control module 133 The charging information of the device to be charged 13 (or the device to be charged 23/33/43/53) can be sent to the wireless charging device 12.
  • the wireless communication between the wireless charging device 12 and the device to be charged 13 may also be a two-way wireless communication.
  • Two-way wireless communication generally requires the receiver to send response information to the initiator after receiving the communication request initiated by the initiator. Two-way communication can make the communication process more secure.
  • any one of the wireless charging device 12 and the device to be charged 13 can act as the master device to initiate a two-way communication session, and the other party can accordingly
  • the slave device side makes the first response or the first reply to the communication initiated by the master device side, and further the master device side makes a targeted second response after receiving the first response or the first reply, thereby completing the master and slave devices
  • the targeted second response made by the master device after receiving the first response or the first reply includes: the master device does not receive the first response or the first reply from the slave device to the communication session within the preset time , The master device will also make a targeted second response to the first response or the first reply from the slave device.
  • the slave device side makes the first response or the first reply to the communication session initiated by the master device side, there is no need for the master device side to make a targeted second response to the first response or the first reply from the slave device side. That is, a communication negotiation process is completed between the task master and the slave device side.
  • the control module in the device to be charged 13 (or the device to be charged 23/33/43/53) 133 may couple respective charging information of the first wireless receiving circuit 132a and the second wireless receiving circuit 132b to the first receiving coil 1321a and the second receiving coil 1321b, respectively, to be sent to the control module 122 of the wireless charging device 12.
  • the charging information of the first wireless receiving circuit 132a and the charging information of the second wireless receiving circuit 132b may both be sent through the receiving coil of a wireless receiving circuit, for example, both are sent through the first receiving coil 1321a, or both are sent through The second receiving coil 1321b transmits. Communication can be performed between the first wireless receiving circuit 132a and the second wireless receiving circuit 132b to exchange respective charging information.
  • the device to be charged 13 can also communicate via Bluetooth, WiFi, mobile cellular network (such as 2G, 3G, 4G or 5G), wireless communication (such as IEEE 802.11, 802.15) (WPANs), 802.16 (WiMAX), 802.20, etc.), at least one of the communication methods such as short-range wireless communication based on high-frequency antennas (such as 60GHz), optical communication (such as infrared communication), ultrasonic communication, and ultra-wideband (UMB) communication One communicates with the wireless charging device 12 to send the aforementioned feedback information to the wireless charging device 12.
  • Bluetooth such as Bluetooth, WiFi, mobile cellular network (such as 2G, 3G, 4G or 5G), wireless communication (such as IEEE 802.11, 802.15) (WPANs), 802.16 (WiMAX), 802.20, etc.), at least one of the communication methods such as short-range wireless communication based on high-frequency antennas (such as 60GHz), optical communication (such as infrared communication), ultrasonic communication, and ultra-wide
  • the device to be charged 13 (or the device to be charged 23/33/43/53) and the wireless charging device 12 also include corresponding communication modules, such as Bluetooth communication modules and WiFi communication.
  • Module 2G/3G/4G/5G mobile communication module, high-frequency antenna, optical communication module.
  • the above-mentioned standards applicable to wireless communication include past and existing standards, and without departing from the scope of the present disclosure, also include future versions and future standards that adopt these standards.
  • the feedback information is coupled to the receiving coil of the wireless receiving circuit for communication through signal modulation, which can improve the reliability of communication, and can avoid the use of signal coupling.
  • the voltage ripple affects the voltage processing process of the voltage conversion module in the device to be charged.
  • the voltage ripple when the wireless receiving coil is output if the ripple is not effectively processed, it may cause wireless charging safety problems, and there are certain safety risks.
  • Communication through the above-mentioned wireless communication method can eliminate voltage ripple, thereby eliminating the need for a circuit for processing voltage ripple, reducing the complexity of the charging circuit of the device to be charged, improving charging efficiency, saving circuit installation space, and reducing cost.
  • the aforementioned charging information may include, for example, the output voltage and/or output current of the first wireless receiving circuit 132a and the second wireless receiving circuit 132b.
  • the wireless charging device 12 can adjust the first wireless transmitting circuit 121a based on the received charging information to make the output voltage and/or current of the first wireless receiving circuit 132a , To match the charging voltage and/or charging current required by the battery 131; based on the received charging information, the second wireless transmitting circuit 121b is adjusted so that the output voltage and/or current of the second wireless receiving circuit 132b is the same as that of the battery The required charging voltage and/or charging current of 131 match.
  • the aforementioned “matching” includes: the output voltage and/or output current of the wireless receiving circuit and the charging voltage and/or charging current required by the battery 131 float within a preset range.
  • the wireless charging device 12 may adjust the first wireless transmitting circuit 121a based on the received charging information, so that the output voltage and/or current of the first wireless receiving circuit 132a meets the requirements of the battery 131 during the trickle charging phase and constant The charging requirements of at least one of the current charging phase and the constant voltage charging phase; based on the received charging information, the second wireless transmitting circuit 121b is adjusted so that the output voltage and/or current of the second wireless receiving circuit 132b meets the The charging requirements of the battery 131 in at least one of the above-mentioned trickle charging phase, constant current charging phase, and constant voltage charging phase.
  • the control module 133 may also send battery status information to the control module 122.
  • the battery status information includes: the current power and/or current voltage of the battery 131 in the device 13 (or 23/33) to be charged.
  • the control module 122 can first determine the current charging stage of the battery 131 according to the battery status information, and then determine the target output voltage value and/or target that matches the current charging stage of the battery 131 The charging current; then, the control module 122 can combine the output voltage and/or output current of each wireless receiving circuit sent by the control module 133 with the determined target output voltage value and/or target charging value of the current charging stage of the battery 131 The currents are compared to determine whether the output voltage and/or output current of each wireless receiving circuit matches the determined charging stage of the battery 131 currently. If it does not match, the transmit power of each wireless transmitting circuit is adjusted until the output voltage and/or output current of each wireless receiving circuit fed back matches the current charging stage of the battery 131.
  • control module 133 can also directly feed back the detected output voltage and/or output current of each wireless receiving circuit to the control module 122, and can also feed back based on the detected output voltage and/or output voltage of each wireless receiving circuit.
  • the adjustment instruction may be, for example, an instruction to increase or decrease the transmission power of each wireless transmission circuit.
  • the wireless charging device 12 may also set multiple transmission power levels for each wireless transmission circuit, and the control module 122 adjusts the transmission power of each wireless transmission circuit by one level each time the control module 122 receives the adjustment instruction.
  • the feedback output voltage and/or output current of each wireless receiving circuit matches the current charging stage of the battery 131.
  • the adjustment instruction may also be used to instruct the wireless charging device to stop charging when an abnormality occurs in the charging.
  • the abnormal charging includes, for example, charging current overcurrent, overvoltage, abnormal heating, and the like.
  • the charging information may also include temperature information.
  • the temperature information may include at least one of the following information: the temperature of the battery 133, the highest temperature of the back shell of the device 13 (or 23/33) to be charged (for example, the temperature of multiple positions of the back shell can be detected) , Whichever is the highest temperature) and the temperature at different preset positions of the device 13 (or 23/33) to be charged.
  • the temperature information can be sent simultaneously through the first receiving coil 1321a and the second receiving coil 1321b, or it can be sent only through one of the first receiving coil 1321a and the second receiving coil 1321b; or, it can also be sent through the other The wireless communication module sends.
  • the wireless charging device 12 can adjust the transmission of the first wireless transmitting circuit 121a and/or the second wireless transmitting circuit 121b based on the charging information. power.
  • the control module 122 can adjust the operating frequency of the first wireless transmitting circuit 121a and the second wireless transmitting circuit 121b and/or the occupancy of the electromagnetic signal transmitted based on the charging information fed back by the device 13 (or 23/33) to be charged.
  • the empty ratio is used to adjust the transmitting power of the first wireless transmitting circuit 121a and/or the second wireless transmitting circuit 121b.
  • the aforementioned charging information may also include temperature information.
  • the temperature information may include at least one of the following information: the temperature of the battery 133, the highest temperature of the back shell of the device 13 (or 23/33) to be charged (for example, the temperature of multiple positions of the back shell can be detected) , Whichever is the highest temperature) and the temperature information of each preset location of the device 13 (or 23/33) to be charged, or indication information based on the temperature information.
  • the control module 122 can adjust the first wireless transmitting circuit by adjusting the operating frequency of the first wireless transmitting circuit 121a and the second wireless transmitting circuit 121b and/or the duty cycle of the electromagnetic signal transmitted based on the temperature information or instruction information.
  • the transmitting power of 121a and/or the second wireless transmitting circuit 121b thereby realizing temperature control of different positions of the device 13 (or 23/33) to be charged. For example, when the temperature near the first wireless receiving circuit 132a of the device to be charged 13 (or 23/33) is too high, the transmission power of the first wireless transmitting circuit 121a coupled with it is reduced; and when the temperature near the second wireless receiving circuit 132b is When the temperature is too high, the transmission power of the second wireless transmitting circuit 121b coupled with it is reduced.
  • the control module 122 may also communicate with the power supply device 11 to request the power supply device to provide a corresponding output voltage to adjust the first The transmit power of the wireless transmitting circuit 121a and/or the second wireless transmitting circuit 121b, so that the output voltage and/or output current of the first wireless receiving circuit 132a and/or the second wireless receiving circuit 132b are the same as the output current of the battery 131 in the current charging stage. Match the charging requirements.
  • control module 122 can also adjust the amount of power extracted from the output power provided by the power supply device 11, thereby adjusting the transmission power of the first wireless transmitting circuit 121a and/or the second wireless transmitting circuit 121b.
  • a power adjustment circuit is provided inside the wireless charging device 12.
  • the power adjustment circuit may include a pulse width modulation (Pulse Width Modulation, PWM) controller and a switch unit, for example.
  • PWM Pulse Width Modulation
  • the control module 122 can adjust the transmission power of the first wireless transmitting circuit 121a and/or the second wireless transmitting circuit 121b by adjusting the duty cycle of the control signal sent by the PWM controller, and/or by controlling the switching frequency of the switch unit.
  • Fig. 7 is a schematic structural diagram of a wireless charging device provided by an exemplary embodiment of the present disclosure.
  • the wireless charging device 22 further includes: a voltage conversion module 224.
  • the voltage conversion module 224 is respectively connected to the charging interface 123, the first wireless transmission circuit 121a, the second wireless transmission circuit 121b, and the control module 122, and is used to convert the output voltage and/or output current of the power supply device 11.
  • the control module 122 is also used to control the voltage conversion module 224 to convert the output voltage and/or output current of the power supply device 11 to adjust the transmission power of the first wireless transmission circuit 121a and/or the second wireless transmission circuit 121b.
  • the control module 122 can adjust the first wireless transmitting circuit 121a and/or the second wireless transmitting circuit 121a by adjusting the output voltage and/or output current of the voltage conversion module 224.
  • the transmitting power of the wireless transmitting circuit 121b matches the charging requirements of the battery 131 in each charging stage.
  • FIG. 8 is a schematic structural diagram of another wireless charging device provided by an exemplary embodiment of the present disclosure.
  • the wireless charging device 32 shown in FIG. 8 may include: a first voltage conversion module 324a and a second voltage conversion module 324b.
  • the first voltage conversion module 324a is respectively connected to the charging interface 123, the first wireless transmitting circuit 121a, and the control module 122, and is used to measure the voltage/current input through the charging interface 123 (that is, the output voltage and/or output current of the power supply device 11). ) To convert.
  • the second voltage conversion module 324b is respectively connected to the charging interface 123, the second wireless transmitting circuit 121b and the control module 122, and is used to measure the voltage/current input through the charging interface 123 (that is, the output voltage and/or output current of the power supply device 11). ) To convert.
  • the control module 122 controls the first voltage conversion module 324a to convert the output voltage and/or output current of the power supply device 11 to adjust the transmission of the first wireless transmitting circuit 121a. power.
  • the second voltage conversion module 324b is controlled to convert the output voltage and/or output current of the power supply device 11 to adjust the transmission power of the second wireless transmitting circuit 121b .
  • the first wireless transmitting circuit 121a and the second wireless transmitting circuit 121b By providing voltage conversion modules for the first wireless transmitting circuit 121a and the second wireless transmitting circuit 121b respectively, different input voltages and/or input currents can be provided for the first wireless transmitting circuit 121a and the second wireless transmitting circuit 121b, so that the The transmission powers of the first wireless transmitting circuit 121a and the second wireless transmitting circuit 121b are adjusted to different values.
  • the control module 122 can adjust the first voltage conversion module 324a and the second voltage conversion module 324b based on the temperature information or indication information. , To adjust the transmitting power of the first wireless transmitting circuit 121a and/or the second wireless transmitting circuit 121b respectively, so as to realize the temperature control of the different positions of the charging device 13 (or 23/33).
  • the transmission power of the first wireless transmitting circuit 121a coupled with it is reduced; and when the temperature near the second wireless receiving circuit 132b is When the temperature is too high, the transmission power of the second wireless transmitting circuit 121b coupled with it is reduced.
  • the above description is based on the example in which the wireless charging device 12 (or 22/32) is connected to the power supply device 11 and the power is obtained from the power supply device 11.
  • the wireless charging device 12 (or 22/32)
  • the function of the adapter can be integrated in the wireless transmission circuit (121a and/or 121b) of the wireless charging device 12 (or 22/32), for example, the rectifier can be integrated in the wireless transmission circuit (121a and/or 121b) Circuits, primary filter circuits and/or transformers, etc.
  • the wireless transmitting circuit (121a and/or 121b) can be used to receive externally input AC power (such as 220V AC power, or city power), and generate electromagnetic signals (or electromagnetic waves) based on the AC power.
  • AC power such as 220V AC power, or city power
  • electromagnetic signals or electromagnetic waves
  • Integrating an adapter-like function inside the wireless charging device 12 or 22 can make the wireless charging device 12 (or 22/32) not need to obtain power from an external power supply device, which improves the performance of the wireless charging device 12 (or 22/32). Integration, and reduce the number of devices required to implement the wireless charging process.
  • the wireless charging device 12 can support the first wireless charging mode and the second wireless charging mode.
  • the wireless charging device 12 treats the charging device 13 (or 23) in the first wireless charging mode. /33) is faster than the charging speed of the wireless charging device 12 (or 22/32) in the second wireless charging mode (or 23/33). In other words, compared to the wireless charging device 12 (or 22/32) working in the second wireless charging mode, the wireless charging device 12 (or 22/32) working in the first wireless charging mode is fully charged.
  • the battery in the capacity to be charged device 13 (or 23/33) consumes less time.
  • the first wireless charging mode may be a fast wireless charging mode.
  • the transmission power of the wireless charging device 12 (or 22/32) is relatively large (usually greater than or equal to 15W).
  • the second wireless charging mode may be a common wireless charging mode, for example, may be a traditional wireless charging mode based on the QI standard, the PMA standard, or the A4WP standard.
  • the wireless charging device 12 (or 22/32) has a relatively small transmit power (usually less than 15W, and the commonly used transmit power is 5W or 10W).
  • control module 122 performs two-way communication with the control module 133 to control the transmission power of the wireless transmission circuit (121a and/or 121b) in the first wireless charging mode.
  • control module 122 and the control module 133 may perform two-way communication to control the transmission power of the wireless transmission circuit (121a and/or 121b) in the first wireless charging mode.
  • the process may include: the control module 122 and The control module 133 performs two-way communication to negotiate a wireless charging mode between the wireless charging device 12 (or 22/32) and the device to be charged 13 (or 23/33).
  • control module 122 conducts handshake communication with the control module 133. If the handshake communication is successful, the wireless charging device 12 (or 22/32) is controlled to use the first wireless charging mode for the device 13 (or 23/33) to be charged. For charging, if the handshake communication fails, the wireless charging device 12 (or 22/32) is controlled to use the second wireless charging mode to charge the device 13 (or 23/33) to be charged.
  • Handshake communication can refer to the identification of each other's identities by the communicating parties.
  • the successful handshake communication may indicate that both the wireless charging device 12 (or 22/32) and the device to be charged 13 (or 23/33) support a wireless charging method with adjustable transmission power.
  • the failure of the handshake communication may indicate that at least one of the wireless charging device 12 (or 22/32) and the device to be charged 13 (or 23/33) does not support a wireless charging method with adjustable transmission power.
  • the wireless charging device 12 does not blindly use the first wireless charging mode to perform fast wireless charging of the device 13 (or 23/33) to be charged, but rather to communicate with the device 13 (or 23/33) to be charged. 33) Perform two-way communication and negotiate whether the wireless charging device 12 (or 22/32) can use the first wireless charging mode for fast wireless charging of the device 13 (or 23/33) to be charged, which can improve the safety of the charging process.
  • the control module 122 and the control module 133 perform two-way communication to negotiate wireless charging between the wireless charging device 12 (or 22/32) and the device 13 (or 23/33) (or 23/33) to be charged.
  • the charging mode may include: the control module 122 sends a first instruction to the control module 133, the first instruction is used to inquire whether the device 13 (or 23/33) to be charged starts the first wireless charging mode; the control module 122 receives the control module 133 sent The reply instruction to the first instruction, the reply instruction is used to indicate whether the device to be charged 13 (or 23/33) agrees to turn on the first wireless charging mode; the device to be charged 13 (or 23/33) agrees to turn on the first wireless charging mode In the case of the charging mode, the first control module controls the wireless charging device 12 (or 22/32) to use the first wireless charging mode to charge the device 13 (or 23/33) to be charged.
  • the control module 122 can also select or switch the wireless charging mode according to some other factors. For example, the control module 122 can also control the wireless charging device 12 (or 22/22) according to the temperature of the battery 131. 32) Use the first wireless charging mode or the second wireless charging mode to charge the battery 131. For example, when the temperature is lower than a preset low temperature threshold (such as 5°C or 10°C), the control module 122 may control the wireless charging device 12 (or 22/32) to use the second wireless charging mode for normal charging, and when the temperature is greater than When it is equal to the low temperature threshold, the control module 122 can control the wireless charging device 12 (or 22/32) to use the first wireless charging mode for fast charging. Further, when the temperature is higher than the high temperature threshold (for example, 50° C.), the control module 122 may control the wireless charging device 12 (or 22/32) to stop charging.
  • a preset low temperature threshold such as 5°C or 10°C
  • the control module 122 may control the wireless charging device 12 (or 22/32) to use the
  • FIG. 9 is a schematic structural diagram of still another wireless charging system provided by an exemplary embodiment of the present disclosure.
  • the control module 122 in the wireless charging device 42 in the wireless charging system 2 may further include: a first control module 1221 and a second control module 1222.
  • the first control module 1221 is used to drive the work of the first wireless transmitting circuit 121a and the second wireless transmitting circuit 121b.
  • the first control module 1221 can also be used to implement the control process of a wireless charging standard, such as the QI standard, the PMA standard, or the A4WP standard.
  • the second control module 1222 can be used to communicate with the control module 133 of the device to be charged 13 (or 23/33), and based on the charging information fed back by the control module 133, control the first control module 1221 to adjust the first wireless transmission The transmitting power of the circuit 121a and/or the second wireless transmitting circuit 121b.
  • first wireless transmitting circuit 121a and the second wireless transmitting circuit 121b may further include a first capacitor 1213a and a second capacitor 1213b matched with the transmitting coil, respectively.
  • the first wireless receiving circuit 132a in the device to be charged 63 includes: a first receiving coil 1321a and a first charging receiving module 1324a.
  • the first charging receiving module 1324a can not only perform the rectification and/or filtering operations in the first shaping circuit 1322a, but also can implement wireless charging standards, such as QI standard, PMA standard, or A4WP standard, and other control procedures. Related protection and control functions.
  • the second wireless receiving circuit 132b includes: a second receiving coil 1321b and a second charging receiving module 1324b.
  • the second charging receiving module 1324b can not only perform the rectification and/or filtering operations in the second shaping circuit 1322b, but also can implement wireless charging standards, such as the QI standard, PMA standard, or A4WP standard, and other related control procedures. Protection and control function.
  • first charging receiving module 1324a and the second charging receiving module 1324b can also communicate to transmit the charging information of the other party, so as to communicate through one of the first wireless receiving circuit 132a and the second wireless receiving circuit 132b. Communicate with the wireless charging device 42.
  • first wireless receiving circuit 132a and the second wireless receiving circuit 132b may further include a first capacitor 1323a and a second capacitor 1323b matched with the receiving coil.
  • FIG. 10 is a schematic structural diagram of still another wireless charging system provided by an exemplary embodiment of the present disclosure.
  • the control module 122 in the wireless charging device 52 in the wireless charging system 3 shown in FIG. 10 further includes: a first control module 1221a, a second control module 1221b, and The third control module 1222.
  • the first control module 1221a and the second control module 1221b are respectively used to drive the operations of the first wireless transmitting circuit 121a and the second wireless transmitting circuit 121b. That is, in the wireless charging device 52, the first wireless transmitting circuit 121a can be controlled by the first control module 1221a, and the second wireless transmitting circuit 121b can be controlled by the second control module 1221b.
  • FIG. 11 is a schematic structural diagram of still another wireless charging system provided by an exemplary embodiment of the present disclosure.
  • the difference from the wireless charging system 2 shown in FIG. 9 is that the wireless charging device 62 in the wireless charging system 4 shown in FIG. 11 only includes the first wireless transmitting circuit 121a.
  • the first control module 1221 is used to drive the first wireless transmitting circuit 121a to work.
  • the first control module 1221 can also be used to implement the control process of a wireless charging standard, such as the QI standard, the PMA standard, or the A4WP standard.
  • the second control module 1222 can be used to communicate with the control module 133 of the device to be charged 13 (or 23/33), and based on the charging information fed back by the control module 133, control the first control module 1221 to adjust the first wireless transmission The transmit power of the circuit 121a.
  • Fig. 12 is a flowchart of a wireless charging method provided by an exemplary embodiment of the present disclosure. This method may be executed by the device to be charged provided in the foregoing embodiments, for example.
  • the wireless charging method 10 includes:
  • step S102 in different charging stages, the electromagnetic signal emitted by the wireless charging device is received through the first wireless receiving circuit in the equipment to be charged, and/or the electromagnetic signal emitted by the wireless charging device is received through the second wireless receiving circuit.
  • the charging phase includes at least one of the following charging phases: a trickle charging phase, a constant current charging phase, and a constant voltage charging phase.
  • step S102 may include: in the constant current charging stage, charging the battery through the first wireless receiving circuit and the second wireless receiving circuit.
  • step S102 may include: charging the battery through the first wireless receiving circuit or the second wireless receiving circuit during the trickle charging phase and/or the constant voltage charging phase.
  • step S104 the electromagnetic signals are respectively converted into output currents to charge the batteries in the equipment to be charged.
  • the method 10 may further include: using the first voltage conversion module in the device to be charged to charge the first The charging voltage and/or the charging current output by the wireless receiving circuit are converted; and the charging voltage and/or the charging current output by the second wireless receiving circuit are converted by the second voltage conversion module in the device to be charged.
  • method 10 may further include: converting the charging voltage and/or charging current output by the first wireless receiving circuit through the first voltage conversion module; or, charging the output from the second wireless receiving circuit through the second voltage conversion module The voltage and/or charging current are converted.
  • the method 10 may further include: converting the charging voltage and/or charging current output by the first wireless receiving circuit or the second wireless receiving circuit through a third voltage conversion module in the device to be charged.
  • the method 10 may further include: when it is detected that the wireless charging device only includes a single wireless transmitting circuit, controlling the first wireless receiving circuit or the second wireless receiving circuit to charge the battery.
  • the wireless charging power can be greatly improved (for example, when two wireless charging channels are used, the charging power can be almost doubled; and if three wireless charging channels are used, the charging power can almost be It is three times that of a single channel, and so on), thereby speeding up the charging speed of the battery.
  • FIG. 13 is a flowchart of another wireless charging method provided by an exemplary embodiment of the present disclosure. Compared with the invalid charging method 10 shown in FIG. 12, the wireless charging method 20 shown in FIG. 13 may further include:
  • step S106 the charging information of the device to be charged is sent to the wireless charging device.
  • the charging information includes: the output voltage and/or output current of the first wireless receiving circuit, and the output voltage and/or output current of the second wireless receiving circuit.
  • step S106 may include: transmitting the output voltage and/or output current of the first wireless receiving circuit to the wireless charging device through the first wireless receiving circuit; and transmitting the second wireless receiving circuit through the second wireless receiving circuit.
  • the output voltage and/or output current of the receiving circuit are sent to the wireless charging device; or, through one of the first wireless receiving circuit and the second wireless receiving circuit, the output voltage and/or output current of the first wireless receiving circuit are The output voltage and/or output current of the second wireless receiving circuit are sent to the wireless charging device.
  • the charging information further includes: temperature information; the temperature information includes at least one of the following information: the temperature of the battery, the highest temperature of the back shell of the device to be charged, and the temperature of different preset positions of the device to be charged.
  • step S106 may include: sending the temperature information to the wireless charging device through one of the first wireless receiving circuit and the second wireless receiving circuit.
  • the method 10 further includes: determining an adjustment instruction of the wireless charging device according to the charging information of the device to be charged; and controlling the device to be charged to send the adjustment instruction to the wireless charging device; wherein the adjustment instruction is used to instruct wireless charging
  • the device increases or decreases the transmission power of each wireless transmitting circuit in the wireless charging device, or the adjustment instruction is used to instruct the wireless charging device to stop charging when abnormal charging occurs.
  • the abnormal charging includes charging current overcurrent, overvoltage, and abnormal heating. Wait.
  • FIG. 14 is a flowchart of still another wireless charging method provided by an exemplary embodiment of the present disclosure. This method may be executed by the wireless charging device provided in the foregoing embodiments, for example.
  • the wireless charging method 30 includes:
  • step S302 in different charging stages of the equipment to be charged, the electric energy input by the power supply device is converted into electromagnetic signals for transmission through the first wireless transmitting circuit and/or the second wireless transmitting circuit in the wireless charging device.
  • the charging device performs wireless charging.
  • the charging phase includes at least one of the following charging phases: a trickle charging phase, a constant current charging phase, and a constant voltage charging phase.
  • step S302 includes: in the constant current charging stage, transmitting electromagnetic signals through the first wireless transmitting circuit and the second wireless transmitting circuit.
  • step S302 includes: controlling the first wireless transmitting circuit or the second transmitting circuit to transmit electromagnetic signals during the trickle charging phase and/or the constant voltage charging phase.
  • the wireless charging power can be greatly improved (for example, when two wireless charging channels are used, the charging power can be almost doubled; and if three wireless charging channels are used, the charging power can almost be It is three times that of a single channel, and so on), thereby speeding up the charging speed of the battery.
  • FIG. 15 is a flowchart of still another wireless charging method provided by an exemplary embodiment of the present disclosure.
  • the difference from the wireless charging method 30 shown in FIG. 14 is that the invalid charging method 40 shown in FIG. 15 may further include:
  • step S304 the charging information sent by the device to be charged is received.
  • the charging information includes: the output voltage and/or output current of the first wireless receiving circuit matching the first wireless transmitting circuit in the device to be charged, and the second wireless receiving circuit matching the second wireless transmitting circuit in the device to be charged.
  • the output voltage and/or output current of the wireless receiving circuit is not limited
  • step S306 based on the charging information, the transmission power of the first wireless transmission circuit and/or the second wireless transmission circuit is adjusted.
  • step S306 includes: based on the charging information, the output voltage and/or output current provided by the power supply device are converted by the voltage conversion module in the wireless charging device to adjust the first wireless transmission circuit and/or the first wireless transmission circuit. 2. The transmitting power of the wireless transmitting circuit.
  • step S306 includes: performing, based on the output voltage and/or output current of the first wireless receiving circuit, the output voltage and/or output current provided by the power supply device through the first voltage conversion module in the wireless charging device. Conversion to adjust the transmission power of the first wireless transmitting circuit; and based on the output voltage and/or output current of the second wireless receiving circuit, the output voltage and/or output voltage provided to the power supply device through the second voltage conversion module in the wireless charging device Or the output current is converted to adjust the transmitting power of the second wireless transmitting circuit.
  • the charging information further includes: temperature information; the temperature information includes at least one of the following information: the temperature of the battery, the highest temperature of the back shell of the device to be charged, and the temperature of each preset position of the device to be charged Information; Step S306 includes: based on the temperature information, the output voltage and/or output current provided by the power supply device is converted by the first voltage conversion module to adjust the transmission power of the first wireless transmitting circuit; and based on the temperature information, The second voltage conversion module converts the output voltage and/or output current provided by the power supply device to adjust the transmission power of the second wireless transmission circuit.
  • step S306 includes: adjusting the operating frequency of the first wireless transmitting circuit and the second wireless transmitting circuit and/or the duty cycle of the electromagnetic signal based on the charging information; or adjusting the first wireless transmitting circuit based on the charging information The operating frequency of the circuit and/or the duty ratio of the electromagnetic signal; or, based on the charging information, the operating frequency of the second wireless transmitting circuit and/or the duty ratio of the electromagnetic signal are adjusted.
  • the charging information further includes: temperature information; the temperature information includes at least one of the following information: the temperature of the battery, the highest temperature of the back shell of the device to be charged, and the temperature information of each preset position of the device to be charged
  • Step S306 includes: adjusting the operating frequency of the first wireless transmitting circuit and the second wireless transmitting circuit and/or the duty cycle of the electromagnetic signal based on the temperature information; or, adjusting the operation of the first wireless transmitting circuit based on the temperature information Frequency and/or the duty ratio of the electromagnetic signal; or, based on the temperature information of each preset position, adjust the operating frequency of the second wireless transmitting circuit and/or the duty ratio of the electromagnetic signal.
  • step S306 includes: requesting the power supply device to provide a corresponding output voltage based on the charging information, so as to adjust the transmission power of the first wireless transmission circuit and/or the second wireless transmission circuit.
  • the charging information includes: an adjustment instruction for instructing the wireless charging device to adjust the transmission power of the first wireless transmission circuit and/or the second wireless transmission circuit.
  • Step S306 includes: adjusting the transmission power of the first wireless transmission circuit and/or the second wireless transmission circuit according to the adjustment instruction; or, according to the adjustment instruction, stopping the charging of the device to be charged.
  • FIG. 16 is a flowchart of still another wireless charging method provided by an exemplary embodiment of the present disclosure. This method may be executed by the device to be charged provided in the foregoing embodiments, for example.
  • the wireless charging method 50 includes:
  • step S502 in different charging modes, the electromagnetic signal transmitted by the wireless charging device is received through the first wireless receiving circuit in the device to be charged, and/or through the second wireless receiving circuit in the device to be charged, Receiving the electromagnetic signal emitted by the wireless charging device.
  • the charging power provided to the battery is different.
  • the charging mode includes: a first charging mode and a second charging mode; wherein, the charging power provided to the battery in the first charging mode is higher than that in the second charging mode. Lower the charging power provided to the battery.
  • step S502 may include: in the first charging mode, charging the battery through the first wireless receiving circuit and the second wireless receiving circuit.
  • step S502 may include: in the second charging mode, charging the battery through the first wireless receiving circuit or the second wireless receiving circuit.
  • step S504 the electromagnetic signals are respectively converted into output currents to charge the battery in the device to be charged.
  • the method 50 may further include: The charging voltage and/or the charging current output by the wireless receiving circuit are converted; and the charging voltage and/or the charging current output by the second wireless receiving circuit are converted by the second voltage conversion module in the device to be charged.
  • the method 50 may further include: converting the charging voltage and/or charging current output by the first wireless receiving circuit through the first voltage conversion module; or, charging the output from the second wireless receiving circuit through the second voltage conversion module The voltage and/or charging current are converted.
  • the method 50 may further include: converting the charging voltage and/or charging current output by the first wireless receiving circuit or the second wireless receiving circuit through a third voltage conversion module in the device to be charged.
  • the method 50 may further include: when it is detected that the wireless charging device only includes a single wireless transmitting circuit, controlling the first wireless receiving circuit or the second wireless receiving circuit to charge the battery.
  • the wireless charging power can be greatly improved (for example, when two wireless charging channels are used, the charging power can be almost doubled; and if three wireless charging channels are used, the charging power can almost be It is three times that of a single channel, and so on), thereby speeding up the charging speed of the battery.
  • FIG. 17 is a flowchart of still another wireless charging method provided by an exemplary embodiment of the present disclosure. Compared with the invalid charging method 50 shown in FIG. 16, the wireless charging method 60 shown in FIG. 17 may further include:
  • step S506 the charging information of the device to be charged is sent to the wireless charging device.
  • the charging information includes: the output voltage and/or output current of the first wireless receiving circuit, and the output voltage and/or output current of the second wireless receiving circuit.
  • step S506 may include: transmitting the output voltage and/or output current of the first wireless receiving circuit to the wireless charging device through the first wireless receiving circuit; and transmitting the second wireless receiving circuit through the second wireless receiving circuit.
  • the output voltage and/or output current of the receiving circuit are sent to the wireless charging device; or, through one of the first wireless receiving circuit and the second wireless receiving circuit, the output voltage and/or output current of the first wireless receiving circuit are The output voltage and/or output current of the second wireless receiving circuit are sent to the wireless charging device.
  • the charging information further includes: temperature information; the temperature information includes at least one of the following information: the temperature of the battery, the highest temperature of the back shell of the device to be charged, and the temperature of different preset positions of the device to be charged.
  • step S506 may include: sending the temperature information to the wireless charging device through one of the first wireless receiving circuit and the second wireless receiving circuit.
  • the method 60 further includes: determining an adjustment instruction of the wireless charging device according to the charging information of the device to be charged; and controlling the device to be charged to send the adjustment instruction to the wireless charging device; wherein the adjustment instruction is used to instruct wireless charging
  • the device increases or decreases the transmission power of each wireless transmitting circuit in the wireless charging device; or, the adjustment instruction is used to instruct the wireless charging device to stop charging when abnormal charging occurs.
  • the abnormal charging includes charging current overcurrent, overvoltage, and abnormal heating. Wait.
  • FIG. 18 is a flowchart of still another wireless charging method provided by an exemplary embodiment of the present disclosure. This method may be executed by the wireless charging device provided in the foregoing embodiments, for example.
  • the wireless charging method 70 includes:
  • step S702 in different charging modes of the device to be charged, the electric energy input by the power supply device is converted into electromagnetic signals for transmission through the first wireless transmitting circuit and/or the second wireless transmitting circuit in the wireless charging device.
  • the device to be charged is charged wirelessly.
  • the charging power output by the wireless charging device is different.
  • the charging mode includes: a first charging mode and a second charging mode; wherein, the charging power output by the wireless charging device in the first charging mode is higher than that in the second charging mode.
  • step S702 includes: in the first charging mode, transmitting electromagnetic signals through the first wireless transmitting circuit and the second wireless transmitting circuit.
  • step S702 includes: in the second charging mode, transmitting an electromagnetic signal through the first wireless transmitting circuit or the second transmitting circuit.
  • the wireless charging power can be greatly improved (for example, when two wireless charging channels are used, the charging power can be almost doubled; and if three wireless charging channels are used, the charging power can almost be It is three times that of a single channel, and so on), thereby speeding up the charging speed of the battery.
  • FIG. 19 is a flowchart of still another wireless charging method provided by an exemplary embodiment of the present disclosure.
  • the difference from the wireless charging method 70 shown in FIG. 18 is that the wireless charging method 80 shown in FIG. 19 may further include:
  • step S704 the charging information sent by the device to be charged is received.
  • the charging information includes: the output voltage and/or output current of the first wireless receiving circuit matching the first wireless transmitting circuit in the device to be charged, and the second wireless receiving circuit matching the second wireless transmitting circuit in the device to be charged.
  • the output voltage and/or output current of the wireless receiving circuit is not limited
  • step S706 based on the charging information, the transmission power of the first wireless transmission circuit and/or the second wireless transmission circuit is adjusted.
  • step S706 includes: based on the charging information, the output voltage and/or output current provided by the power supply device are converted by the voltage conversion module in the wireless charging device to adjust the first wireless transmitting circuit and/or the first wireless transmission circuit. 2. The transmitting power of the wireless transmitting circuit.
  • step S706 includes: performing processing on the output voltage and/or output current provided by the power supply device through the first voltage conversion module in the wireless charging device based on the output voltage and/or output current of the first wireless receiving circuit. Conversion to adjust the transmission power of the first wireless transmitting circuit; and based on the output voltage and/or output current of the second wireless receiving circuit, the output voltage and/or output voltage provided to the power supply device through the second voltage conversion module in the wireless charging device Or the output current is converted to adjust the transmitting power of the second wireless transmitting circuit.
  • the charging information further includes: temperature information; the temperature information includes at least one of the following information: the temperature of the battery, the highest temperature of the back shell of the device to be charged, and the temperature of each preset position of the device to be charged Information; Step S706 includes: based on the temperature information, the output voltage and/or output current provided by the power supply device is converted by the first voltage conversion module to adjust the transmission power of the first wireless transmitting circuit; and based on the temperature information, The second voltage conversion module converts the output voltage and/or output current provided by the power supply device to adjust the transmission power of the second wireless transmission circuit.
  • step S706 includes: adjusting the operating frequency of the first wireless transmitting circuit and the second wireless transmitting circuit and/or the duty cycle of the electromagnetic signal based on the charging information; or adjusting the first wireless transmitting circuit based on the charging information The operating frequency of the circuit and/or the duty ratio of the electromagnetic signal; or, based on the charging information, the operating frequency of the second wireless transmitting circuit and/or the duty ratio of the electromagnetic signal are adjusted.
  • the charging information further includes: temperature information; the temperature information includes at least one of the following information: the temperature of the battery, the highest temperature of the back shell of the device to be charged, and the temperature information of each preset position of the device to be charged
  • Step S306 includes: adjusting the operating frequency of the first wireless transmitting circuit and the second wireless transmitting circuit and/or the duty cycle of the electromagnetic signal based on the temperature information; or, adjusting the operation of the first wireless transmitting circuit based on the temperature information Frequency and/or the duty ratio of the electromagnetic signal; or, based on the temperature information of each preset position, adjust the operating frequency of the second wireless transmitting circuit and/or the duty ratio of the electromagnetic signal.
  • a computer-readable storage medium is also provided, on which a program product capable of implementing the above method of this specification is stored.
  • various aspects of the present disclosure may also be implemented in the form of a program product, which includes program code.
  • the program product runs on a terminal device, the program code is used to enable the The terminal device executes the steps according to various exemplary embodiments of the present disclosure described in the above-mentioned "Exemplary Method" section of this specification.
  • the program code contained on the readable medium can be transmitted by any suitable medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the above.
  • modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory.
  • the features and functions of two or more modules or units described above may be embodied in one module or unit.
  • the features and functions of a module or unit described above can be further divided into multiple modules or units to be embodied.

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本公开实施例提供了一种电子设备、无线充电装置、系统及方法，涉及无线充电技术领域。该无线充电系统包括：待充电设备及无线充电装置；待充电设备包括电池及至少两个无线接收线圈；无线充电装置包括至少两个无线发射线圈；其中，至少两个无线发射线圈用于将电能转换为电磁信号进行发射；至少两个无线接收线圈用于在不同充电阶段，接收无线充电装置发射的电磁信号；其中，至少两个无线发射线圈与至少两个无线接收线圈一一匹配。本公开实施例提供的电子设备、无线充电装置、系统及方法可以显著提升电子设备的无线充电功率。

Description

电子设备、无线充电装置、系统及方法 技术领域
本公开涉及无线充电技术领域，尤其涉及一种电子设备、无线充电装置、系统及方法。
背景技术
随着无线充电技术的普及，越来越多的电子设备(如智能手机、平板电脑等)都支持无线充电功能。
在无线充电过程中，一般将电源适配器与无线充电底座相连，并通过无线充电底座将电源适配器的输出功率以无线的方式(如电磁信号或电磁波)传输至电子设备，以对电子设备进行无线充电。
然而，随着电子设备电池容量的提高，对于无线充电速率的要求越来越高，无线充电方式无法满足日益增长的无线充电速率需求。
需要说明的是，在上述背景技术部分公开的信息仅用于加强对本公开的背景的理解，因此可以包括不构成对本领域普通技术人员已知的现有技术的信息。
发明内容
本公开提供一种电子设备、无线充电装置、系统及方法，可以提升无线充电功率，从而提高无线充电速率。
本公开的其他特性和优点将通过下面的详细描述变得显然，或部分地通过本公开的实践而习得。
根据本公开的一个方面，提供一种待充电设备，包括：电池；至少两个无线接收电路，分别与所述电池连接，所述至少两个无线接收电路用于接收无线充电装置发射的电磁信号，并将所述电磁信号转换成输出电流，以为所述电池充电；以及控制模块，分别与所述至少两个无线接收电路连接，用于在不同充电阶段，控制所述至少两个无线接收电路的至少其中之一为所述电池充电。
根据本公开的另一方面，提供一种待充电设备，其特征在于，包括：电池；至少两个无线接收电路，分别与所述电池连接，所述至少两个无线接收电路用于接收无线充电装置发射的电磁信号，并将所述电磁信号转换成输出电压和输出电流，以为所述电池充电；以及控制模块，分别与所述至少两个无线接收电路连接，用于在不同充电模式下，控制所述至少两个无线接收电路中的至少其中之一为所述电池充电；其中，在不同的充电模式下，提供给所述电池的充电功率不同。
根据本公开的再一方面，提供一种无线充电装置，包括：充电接口，用于接收电源提供装置输入的电能；至少两个无线发射电路，分别与所述充电接口连接，所述至少两个无线发射电路分别用于将所述电能转换为电磁信号进行发射，以为待充电设备进行无线充电；以及控制模块，分别与所述至少两个无线发射电路连接，用于在所述待充电设备的不同充电阶段控制所述至少两个无线发射电路的至少其中之一发射所述电磁信号。
根据本公开的再一方面，提供一种无线充电装置，包括：充电接口，用于接收电源提供装置输入的电能；至少两个无线发射电路，分别与所述充电接口连接，所述至少两个无线发射电路分别用于将所述电能转换为电磁信号进行发射，以为待充电设备进行无线充电；以及控制模块，分别与所述至少两个无线发射电路连接，用于在所述待充电设备的不同充电模式下控制所述至少两个无线发射电路的至少其中之一发射所述电磁信号；其中，在不同的充电模式下，所述无线充电装置输出的充电功率不同。
根据本公开的再一方面，提供一种无线充电系统，包括：待充电设备及无线充电装置；所述待充电设备包括电池及至少两个无线接收线圈；所述无线充电装置包括至少两个无线发射线圈；其中，所述至少两个无线发射线圈用于将电能转换为电磁信号进行发射；所述至少两个无线接收线圈用于在不同充电阶段，接收所述无线充电装置发射的所述电磁信号；其中，所述至少两个无线发射线圈与所述至少两个无线接收线圈一一匹配。
根据本公开的再一方面，提供一种无线充电方法，应用于待充电设备中，包括：在不同充电阶段，通过所述待充电设备中的第一无线接收电路接收无线充电装置发射的电磁信号，和/或通过 所述待充电设备中的第二无线接收电路，接收所述无线充电装置发射的电磁信号；以及分别将所述电磁信号转换成输出电流，以为所述待充电设备中的电池充电。
根据本公开的再一方面，提供一种无线充电方法，应用于待充电设备中，包括：在不同充电模式下，通过所述待充电设备中的第一无线接收电路接收无线充电装置发射的电磁信号，和/或通过所述待充电设备中的第二无线接收电路，接收所述无线充电装置发射的电磁信号；以及分别将所述电磁信号转换成输出电流，以为所述待充电设备中的电池充电；其中，在不同的充电模式下，提供给所述电池的充电功率不同。
根据本公开的再一方面，提供一种无线充电方法，应用于无线充电装置中，包括：在待充电设备的不同充电阶段，通过所述无线充电装置中的第一无线发射电路和/或第二无线发射电路，将电源提供装置输入的电能转换为电磁信号进行发射，以为待充电设备进行无线充电。
根据本公开的再一方面，提供一种无线充电方法，应用于无线充电装置中，包括：在待充电设备的不同充电模式下，通过所述无线充电装置中的第一无线发射电路和/或第二无线发射电路，将电源提供装置输入的电能转换为电磁信号进行发射，以为待充电设备进行无线充电；其中，在不同的充电模式下，所述无线充电装置输出的充电功率不同。
本公开实施例提供的无线充电装置包括多个无线发射电路，待充电设备包括多个无线接收电路，从而使得两者在无线充电时，可以形成多个无线充电通道。在不同充电阶段或不同充电模式下，当使用多个无线充电通道进行无线充电时，可以大幅地提升无线充电功率(如使用两个无线充电通道时，充电功率几乎可以实现翻倍；而如果使用三个无线充电时，充电功率几乎可以为单通道的三倍，以此类推)，从而加快电池的充电速度。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。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是本公开一个示例性实施例提供的一种无线充电系统的结构示意图。
图2是本公开一个示例性实施例提供的另一种无线充电系统的结构示意图。
图3是本公开一个示例性实施例提供的一种待充电设备的结构示意图。
图4是本公开一个示例性实施例提供的另一种待充电设备的结构示意图。
图5是本公开一个示例性实施例提供的再一种待充电设备的结构示意图。
图6是本公开一个示例性实施例提供的再一种待充电设备的结构示意图。
图7是本公开一个示例性实施例提供的一种无线充电装置的结构示意图。
图8是本公开一个示例性实施例提供的另一种无线充电装置的结构示意图。
图9是本公开一个示例性实施例提供的再一种无线充电系统的结构示意图。
图10是本公开一个示例性实施例提供的再一种无线充电系统的结构示意图。
图11是本公开一个示例性实施例提供的再一种无线充电系统的结构示意图。
图12是本公开一个示例性实施例提供的一种无线充电方法的流程图。
图13是本公开一个示例性实施例提供的另一种无线充电方法的流程图。
图14是本公开一个示例性实施例提供的再一种无线充电方法的流程图。
图15是本公开一个示例性实施例提供的再一种无线充电方法的流程图。
图16是本公开一个示例性实施例提供的再一种无线充电方法的流程图。
图17是本公开一个示例性实施例提供的再一种无线充电方法的流程图。
图18是本公开一个示例性实施例提供的再一种无线充电方法的流程图。
图19是本公开一个示例性实施例提供的再一种无线充电方法的流程图。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的范例；相反，提供这些实施方式使得本公开将更加全面和完整，并 将示例实施方式的构思全面地传达给本领域的技术人员。所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多实施方式中。
此外，附图仅为本公开的示意性图解，并非一定是按比例绘制。图中相同的附图标记表示相同或类似的部分，因而将省略对它们的重复描述。附图中所示的一些方框图是功能实体，不一定必须与物理或逻辑上独立的实体相对应。可以采用软件形式来实现这些功能实体，或在一个或多个硬件模块或集成电路中实现这些功能实体，或在不同网络和/或处理器装置和/或微控制器装置中实现这些功能实体。
在本公开中，除非另有明确的规定和限定，术语“相连”、“连接”等术语应做广义理解，例如，可以是电连接，也可以是通信连接；可以是直接相连，也可以是间接相连。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公开中的具体含义。
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。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示单独存在A、单独存在B及同时存在A和B三种情况。符号“/”一般表示前后关联对象是一种“或”的关系。
在相关技术中，无线充电底座和电子设备之间通常采用单路无线充电方式进行无线充电。但由于受到接收线圈的限制，接收线圈上耦合的电流不能进一步提高，只有通过提升整流电路上的电压来增大功率；但按照现有集成电路工艺的要求，超过30V左右的电压，工艺和成本的要求将非常高。
因此，本公开实施例提供的无线充电系统可以采用多路无线充电通路进行充电，从而可以提升无线充电功率，从而提高无线充电速率。
下面，具体通过如下实施例进行说明本公开实施例提供的设备、无线充电装置、系统及无线充电方法：
图1是本公开一个示例性实施例提供的一种无线充电系统的结构示意图。
参考图1，无线充电系统1包括：电源提供装置11、无线充电装置12及待充电设备13。
其中，电源提供装置11例如可以是电源适配器、移动电源(Power Bank)等设备。无线充电装置12例如可以是无线充电底座。
电源提供装置11与无线充电装置12通过缆线连接后，将其输出的电流传输至无线充电装置12。
无线充电装置12包括：第一无线发射电路121a、第二无线发射电路121b、控制模块122及充电接口123。
其中，无线充电装置12通过充电接口123与电源提供装置11连接，接收电源提供装置11输出的电能。
充电接口123例如可以为USB 2.0接口、Micro USB接口或USB TYPE-C接口。在一些实施例中，充电接口123还可以为lightning接口，或者其他任意类型的能够用于充电的并口或串口。
无线充电装置12还可以通过充电接口123与电源提供装置11进行通信，而无需设置额外的通信接口或其他无线通信模块，这样可以简化无线充电装置12的实现。如充电接口123为USB接口，无线充电装置12与电源提供装置11可以基于该USB接口中的数据线(如D+和/或D-线)进行通信。又如充电接口123为支持功率传输(Power Delivery，PD)通信协议的USB接口(如USB TYPE-C接口)，无线充电装置12与电源提供装置11可以基于PD通信协议进行通信。
此外，无线充电装置12还可以通过除充电接口123之外的其他通信方式与电源提供装置11通信连接。例如，无线充电装置12可以以无线的方式与电源提供装置11进行通信，如近场通讯(Near Field Communication，NFC)、蓝牙通信。
第一无线发射电路121a及第二无线发射电路121b分别与充电接口123连接，用于分别将电源提供装置11输出的电能转换成电磁信号(或电磁波)进行发射，以为待充电设备13进行无线充电。例如，第一无线发射电路121a与第二无线发射电路121b可以包括：逆整流电路和发射线圈(或发射天线)。逆整流电路用于将电源提供装置11输出的直流电转换成高频的交流电，并通过发射线圈或发射天线将该高频交流电转换成电磁信号(或电磁波)发射出去。
在一些实施例中，如图1所示，第一无线发射电路121a例如可以包括：第一逆整流电路1211a和第一发射线圈1212a。第二无线发射电路121b包括：第二逆整流电路1211b和第二发射线圈1212b。
控制模块122分别与第一无线发射电路121a与第二无线发射电路121b连接，用于在待充电 设备13的不同充电阶段，控制第一无线发射电路121a与第二无线发射电路121b发射上述的电磁信号(或电磁波)。也即，控制第一无线发射电路121a与第二无线发射电路121b，以通过第一无线发射电路121a和/或第二无线发射电路121b，为待充电设备13进行无线充电。
控制模块122例如可以通过微控制单元(Micro Control Unit，MCU)实现。
下面说明电池在充电过程中的各充电阶段。
电池在充电过程中可以包括如下充电阶段：涓流充电阶段、恒流充电阶段、恒压充电阶段。
其中，在涓流充电阶段，先对放电至预设电压阈值的电池进行预充电(即恢复性充电)，涓流充电电流通常是恒流充电电流的十分之一，当电池电压上升到涓流充电电压阈值以上时，提高充电电流进入恒流充电阶段。
在恒流充电阶段，以恒定电流对电池进行充电，电池电压快速上升，当电池电压达到电池所预期的电压阈值(或截止电压)时转入恒压充电阶段。
在恒压充电阶段，以恒定电压对电池进行充电，充电电流逐渐减小，当充电电流降低至设定的电流阈值时(该电流阈值通常为恒流充电阶段充电电流数值的数十分之一或者更低，可选地，该电流阈值可为数十毫安或更低)，电池被充满电。
此外，电池被充满电后，由于电池自放电的影响，会产生部分电流损耗，此时转入补充充电阶段。在补充充电阶段，充电电流很小，仅仅为了保证电池在满电量状态。
需要说明的是，本公开实施例中提及的恒流充电阶段并非要求充电电流保持完全恒定不变，例如可以是泛指充电电流的峰值或均值在一段时间内保持不变。
实际中，恒流充电阶段还可以采用分段恒流充电(Multi-stage constant current charging)的方式进行充电。
分段恒流充电可具有M个恒流阶段(M为一个不小于2的整数)，分段恒流充电以预定的充电电流开始第一阶段充电，所述分段恒流充电的M个恒流阶段从第一阶段到第M阶段依次被执行。当恒流阶段中的前一个恒流阶段转到下一个恒流阶段后，电流大小可变小；当电池电压达到本恒流阶段对应的充电电压阈值时，会转到下一个恒流阶段。相邻两个恒流阶段之间的电流转换过程可以是渐变的，也可以是台阶式的跳跃变化。
如上述可知，电池在充电过程中，在恒流充电阶段，充电电流最大，使得电池电压快速增长。
待充电设备13例如可以是终端或电子设备，该终端或电子设备包括但不限于被设置成经由有线线路连接，如经由公共交换电话网络(public switched telephone network，PSTN)、数字用户线路(digital subscriber line，DSL)、数字电缆、直接电缆连接，以及/或另一数据连接/网络和/或经由例如，针对蜂窝网络、无线局域网(wireless local area network，WLAN)、诸如手持数字视频广播(digital video broadcasting handheld，DVB-H)网络的数字电视网络、卫星网络、调幅-调频(amplitude modulation-frequency modulation，AM-FM)广播发送器，以及/或另一终端的无线接口接收/发送通信信号的装置。被设置成通过无线接口通信的通信终端可以被称为“无线通信终端”、“无线终端”以及/或“移动终端”。终端的示例包括，但不限于卫星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(personal communication system，PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(global positioning system，GPS)接收器的个人数字助理(Personal Digital Assistant，PDA)；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。此外，该终端还可以包括但不限于诸如电子书阅读器、智能穿戴设备、移动电源(如充电宝、旅充)、电子烟、无线鼠标、无线键盘、无线耳机、蓝牙音箱等具有充电功能的可充电电子设备。
参考图1，待充电设备13包括：电池131、第一无线接收电路132a、第二无线接收电路132b及控制模块133。
其中，电池131例如可以为单个电池或电芯，或者为包含多个相互串联的电芯的锂电池。或者，电池131也可以包括多个串联的电池单元，每个电池单元为包含单个电芯或包含多个电芯的锂电池。当电池131包含多个电芯或多个电池单元时，可以分别地为每个电池单元或电芯充电，也可以将多个电池单元或多个电芯作为一个整体进行充电。
下面以电池131包括两个串联的电池单元，且每个电池单元包含单电芯为例，说明采用多个串联的电池单元如何在大电流充电时，即可以提升充电速度，又可以降低待充电设备的发热量：
对于包含单个电池单元的待充电设备，当使用较大的充电电流为单个电池单元充电时，待充电设备的发热现象会比较严重。为了保证待充电设备的充电速度，并缓解待充电设备在充电过程中的发热现象，可对电池结构进行改造，使用相互串联的多个电池单元，并对该多个电池单元进 行直充，即直接将适配器输出的电压加载到多个电池单元中每个电池单元的两端。与单个电池单元方案相比(即认为改进前的单个电池单元的容量与改进后串联多个电池单元的总容量相同)，如果要达到相同的充电速度，施加至多个电池单元中的每个电池单元的充电电流约为单个电池单元所需的充电电流的1/N(N为串联的电池单元的数目)，换句话说，在保证同等充电速度的前提下，多个电池单元串联可以大幅降低充电电流的大小，从而进一步减小待充电设备在充电过程中的发热量。因此，为了提升充电速度并降低待充电设备在充电过程中的发热量，待充电设备可以采用多个串联的电池单元。
此外，电池131例如还可以为包含多个相互并联的电芯的锂电池，或者，可以包括多个并联的电池单元，每个电池单元为包含单个或多个电芯的锂电池。
第一无线接收电路132a和第二无线接收电路132b分别用于接收无线充电装置12发射的电磁信号(或电磁波)，并将该电磁信号(或电磁波)转换成直流电输出。例如，第一无线接收电路132a、第二无线接收电路132b均可以包括：接收线圈(或接收天线)及与接收线圈或接收天线相连的、包括整流电路和/或滤波电路的整形电路。
不失一般性地，以第一无线接收电路132a与第一无线发射电路121a耦合，第二无线接收电路132b与第二无线发射电路121b耦合为例，第一无线接收电路132a通过接收线圈或接收天线将第一无线发射电路121a发射的电磁信号(或电磁波)转换成交流电，通过整形电路对该交流电进行整流和/或滤波等操作，从而将该交流电转换成稳定的直流电，为电池131充电；第二无线接收电路132b通过接收线圈或接收天线将第二无线发射电路121b发射的电磁信号(或电磁波)转换成交流电，通过整形电路对该交流电进行整流和/或滤波等操作，从而将该交流电转换成稳定的直流电，为电池131充电。
需要说明的是，在充电过程中，第一无线接收电路132a也可以与第二无线发射电路121b耦合，而第二无线接收电路132b与第一无线发射电路121a耦合。例如，用户在将待充电设备13放置在无线充电装置12上进行充电时，如果用户将待充电设备13的放置位置使得第一无线接收电路132a与第二无线发射电路121b靠近，且使第二无线接收电路132b与第一无线发射电路121a靠近，则如上所述，第一无线接收电路132a也可以与第二无线发射电路121b耦合，第二无线接收电路132b与第一无线发射电路121a耦合。也即，在实际应用时，两个无线发射电路与两个无线接收电路之间的耦合关系并无限定，例如可以根据其位置关系而进行耦合连接。
需要说明的是，本公开实施例对整形电路的具体形式以及整形电路整形之后得到的第一无线接收电路132a和第二无线接收电路132b的输出电压和输出电流的形式不做具体限定。
在一些实施例中，整形电路可以包括：整流电路和滤波电路。第一无线接收电路132a和第二无线接收电路132b的输出电压可以为滤波之后得到的稳定的电压。
在一些实施例中，整形电路可以仅包括：整流电路。第一无线接收电路132a和第二无线接收电路132b的输出电压可以为整流之后得到的脉动波形的电压，该脉动波形的电压直接加载到电池131两端以对电池131进行充电。可以理解是，第一无线接收电路132a和第二无线接收电路132b的输出电流可以以间歇的方式为电池131充电，第一无线接收电路132a和第二无线接收电路132b的输出电流的周期可以跟随输入无线充电系统1的交流电例如交流电网的频率进行变化。例如，第一无线接收电路132a和第二无线接收电路132b的输出电流的周期所对应的频率为电网频率的整数倍或倒数倍。并且，第一无线接收电路132a和第二无线接收电路132b的输出电流可以以间歇的方式为电池131充电时，第一无线接收电路132a和第二无线接收电路132b的输出电流对应的电流波形可以是与电网同步的一个或一组脉冲组成。脉动形式的电压/电流的大小周期性变换，与恒定直流电相比，能够降低锂电池的析锂现象，提高电池的使用寿命，并且有利于降低电池的极化效应、提高充电速度、减少电池的发热，从而保证待充电设备充电时的安全可靠。
在一些实施例中，如图1所示，第一无线接收电路132a如可以包括：第一接收线圈1321a、第一整形电路1322a。第二无线接收电路132b可以包括：第二接收线圈1321b、第二整形电路1322b。
在一些实施例中，第一接收线圈1321a和第二接收线圈1321b被设置于待充电设备13中的同一个平面内，例如可以沿待充电设备13的长边排列，或者也可以沿待充电设备13的宽边排列。这样的布局，更有利于待充电设备13的散热，对于温度控制的效果更好。
控制模块133例如可以通过独立的MCU实现，或者还可以通过待充电设备13内部的应用处理器(Application Processor，AP)实现。
控制模块133分别与第一无线接收电路132a和第二无线接收电路132b连接，用于在不同充电阶段，控制第一无线接收电路132a和/或第二无线接收电路132b为电池131充电。也即，通过 控制第一无线接收电路132a和第二无线接收电路132b，以通过第一无线接收电路132a和/或第二无线接收电路132b为电池131充电。
本领域技术人员应理解的是，图1中的无线充电装置12和待充电设备13虽然分别以包括两个无线发射电路和两个无线接收电路为例，无线充电装置12还可以包括更多的无线发射电路(如图2中的三个无线发射电路)，相应地，待充电设备13还可以包括更多的无线接收电路(例如，如图2中的三个无线接收电路)，相应地，控制模块133用于控制至少两个无线接收电路的至少其中之一为电池131充电。
图2是本公开一个示例性实施例提供的另一种无线充电系统的结构示意图。
图2中的无线充电装置12还可以进一步包括：第三无线发射电路121c，待充电设备13则进一步包括：第三无线接收电路132c。
无线充电装置12中的控制模块122进一步用于在不同充电阶段，控制第一无线发射电路121a、第二无线发射电路121b和第三无线发射电路121c，以通过第一无线发射电路121a、第二无线发射电路121b和第三无线发射电路121c中的全部或部分来发射电磁信号。
待充电设备13中的控制模块133进一步用于在不同充电阶段，控制第一无线接收电路132a、第二无线接收电路132b及第三无线接收电路132c，以通过第一无线接收电路132a、第二无线接收电路132b及第三无线接收电路132c中的全部或部分为电池131充电。
需要说明的是，虽然使用“第一”、“第二”、“第三”等区别不同的无线发射电路和无线接收电路，但在实际充电过程中，不同无线发射电路和无线接收电路之间的耦合关系不受“第一”、“第二”、“第三”的限制。例如，如上述，可以根据无线发射电路和无线接收电路之间的距离关系等，进行耦合，相应地形成一个或更多个无线充电通道。本领域技术人员应理解的是，该无线充电通道为由电磁波或电磁信号组成的无线虚拟通道。
如上述，本公开实施例提供的无线充电装置包括多个无线发射电路，待充电设备包括多个无线接收电路，从而使得两者在无线充电时，可以形成多个无线充电通道。在不同充电阶段，当使用多个无线充电通道进行无线充电时，可以大幅地提升无线充电功率(如使用两个无线充电通道时，充电功率几乎可以实现翻倍；而如果使用三个无线充电时，充电功率几乎可以为单通道的三倍，以此类推)，从而加快电池的充电速度。
如上述可知，电池在充电过程中，在恒流充电阶段，充电电流最大，使得电池电压快速增长。为了进一步加快电池的充电速度，例如可以在恒流充电阶段使用多个无线充电通道为电池131充电，如图1中的两个无线充电通道，或如图2中的三个无线充电通道。也即，通过无线充电装置12中的控制模块122来控制各无线发射电路，并通过待充电设备13中的控制模块133来控制各无线接收电路，来形成多个无线充电通道，为电池131充电。
此外，在涓流充电阶段和/或恒压充电阶段，因所需的充电电流较小，仍然可以使用单通道进行充电，如图1中两个无线充电通道的其中之一，或如图2中三个无线充电通道的其中之一。或者，在涓流充电阶段和/或恒压充电阶段也可以采用多个无线充电通道进行充电，如图1中的两个无线充电通道，如图2中的两个或三个无线充电通道等。也即，通过无线充电装置12中的控制模块122来控制各无线发射电路，并通过待充电设备13中的控制模块133来控制各无线接收电路，来形成一个或更多个无线充电通道，为电池131充电。当仅使用部分无线充电通道时，可以通过控制模块122及控制模块133分别关闭不使用的无线发射电路和无线接收电路，以形成部分的无线充电通道。
本领域技术人员应理解的是，虽然上述以涓流充电阶段、恒流充电阶段、恒压充电阶段为例，但本公开中所述的“不同充电阶段”不限于此。例如，在电池131的充电过程中，还可能仅包含涓流充电阶段和恒流充电阶段，而不包含恒压充电阶段；或者仅包含恒流充电阶段和恒压充电阶段，而不包含涓流充电阶段。此外，还可以为其他充电阶段。
此外，在一些实施例中，待充电设备13在充电时，有可能被放置于一个仅包含单个无线发射电路的无线充电装置上，具体的结构可参见图12。待充电设备13中的控制模块还可以用于对无线充电装置包含的无线发射电路的个数进行检测，如可以通过第一无线接收电路132a和/或第二无线接收电路132b与对端的无线发射电路进行通信，来检测出无线充电装置中无线发射电路的个数。当检测出无线充电装置仅包含单个无线发射电路时，控制模块133还可以用于控制使用第一无线接收电路132a或第二无线接收电路132b为电池131进行充电。如，当使用第一无线接收电路132a时，相应关闭包含第二无线接收电路132b的无线充电通道；或者，当使用第二无线接收电路132b时，相应关闭包含第一无线接收电路132a的无线充电通道。
虽然上述以待充电设备13包含两个无线接收电路，无线充电装置包含一个无线发射电路，来说明当两者之间的线圈个数不匹配时，待充电设备13如何进行无线充电。但本领域技术人员应理解的是，还有可能待充电设备13包含3个无线接收电路，而无线充电装置包含2个无线发射电路的情形。在此种情况下，待充电设备13仍然可以由控制模块133控制进行无线充电装置包含的无线发射电路的个数的检测，当检测到两者不匹配时，使用待充电设备13中的部分无线接收电路与无线充电装置的无线发射电路组成无线充电通道进行无线充电。
下面说明待充电设备的充电模式。
待充电设备13可以支持第一充电模式和无线充电模式。在第一充电模式下为电池133提供的充电功率，高于在第二充电模式下为电池133提供的充电功率。
第一充电模式可为快速充电模式。该快速充电模式可以指无线充电装置12的发射功率相对较大(通常大于或等于15W)的充电模式。
第二充电模式可以为普通充电模式。该普通充电模式可以指无线充电装置12的发射功率较小(通常小于15W，常用的发射功率为5W或10W)的充电模式，例如可以是传统的基于QI标准、PMA标准或A4WP标准的无线充电模式。
在普通充电模式下想要完全充满一较大容量电池(如3000毫安时容量的电池)，通常需要花费数个小时的时间。而相较于普通充电模式而言，在快速充电模式下完全充满相同容量电池所需要的充电时间能够明显缩短、充电速度更快。
由上述，在第一充电模式下，充电电流最大，使得电池电压快速增长。为了进一步加快电池的充电速度，例如可以在第一充电模式下，使用多个无线充电通道为电池131充电，如图1中的两个无线充电通道，或如图2中的三个无线充电通道。也即，通过无线充电装置12中的控制模块122来控制各无线发射电路，并通过待充电设备13中的控制模块133来控制各无线接收电路，来形成多个无线充电通道，为电池131充电。
此外，第二充电模式下，因所需的充电电流较小，仍然可以使用单通道进行充电，如图1中两个无线充电通道的其中之一，或如图2中三个无线充电通道的其中之一。或者，在第二充电模式下，也可以采用多个无线充电通道进行充电，如图1中的两个无线充电通道，如图2中的两个或三个无线充电通道等。也即，通过无线充电装置12中的控制模块122来控制各无线发射电路，并通过待充电设备13中的控制模块133来控制各无线接收电路，来形成一个或更多个无线充电通道，为电池131充电。当仅使用部分无线充电通道时，可以通过控制模块122及控制模块133分别关闭不使用的无线发射电路和无线接收电路，以形成部分的无线充电通道。
图3是本公开一个示例性实施例提供的一种待充电设备的结构示意图。
需要说明的是，虽然为了简化附图，图3中的待充电设备23以两个无线接收电路为例进行说明，但如上述，其也可以包括多个无线接收电路为电池131充电。
参考图3，待充电设备23还进一步包括：第一电压转换模块234a和第二电压转换模块234b。其中，第一电压转换模块234a连接于第一无线接收电路132a与电池131之间，第二电压转换模块234b连接于第二无线接收电路132b与电池131之间。
当第一无线接收电路132a、第二无线接收电路132b的输出电压不能满足电池131所预期的充电电压的要求，和/或，第一无线接收电路132a、第二无线接收电路132b的输出电流不能满足电池131所预期的充电电流的要求时，可以先通过第一电压转换模块234a、第二电压转换模块234b进行变换，以得到电池131所预期的充电电压和/或充电电流。
例如，将第一无线接收电路132a的输出电压和输出电流输入至第一电压转换模块234a内；第一电压转换模块234a对输入的电压进行转换后，输出的电压与电流直接加载在电池131的两端，以满足电池131所预期的充电电压和/或充电电流的要求。
将第二无线接收电路132b的输出电压和输出电流输入至第二电压转换模块234b内；第二电压转换模块234b对输入的电压进行转换后，输出的电压与电流直接加载在电池131的两端，以满足电池131所预期的充电电压和/或充电电流的要求。
控制模块133还用于控制第一电压转换模块234a和第二电压转换模块234b，以通过第一电压转换模块234a、第二电压转换模块234b进行上述的转换。
例如，如上述在恒流充电阶段或在第一充电模式下，通过两个无线充电通道为电池131进行充电时，控制模块133同时控制第一电压转换模块234a和第二电压转换模块234b，以分别通过第一电压转换模块234a、第二电压转换模块234b进行上述的转换。
或者，如上述在恒压和/或涓流充电阶段或在第二充电模式下，通过两个无线充电通道的其中 之一为电池131进行充电。当使用第一无线接收电路132a接收电磁波时，控制模块133控制第一电压转换模块234a进行上述的转换；而当使用第二无线接收电路132b接收电磁波时，控制模块133控制第二电压转换模块234b进行上述的转换。
此外，如上述，当检测到为待充电设备23充电的无线充电装置仅包含单个无线发射线圈时，如果使用第一无线接收电路132a接收电磁波，则控制模块133控制第一电压转换模块234a进行上述的转换；而如果使用第二无线接收电路132b接收电磁波，则控制模块133控制第二电压转换模块234b进行上述的转换。
第一电压转换模块234a和第二电压转换模块234b例如可以为BUCK电路或者为电荷泵(ChargePump)电路，或者还可以为BOOST升压电路，当电池131包含串联的多个电芯时，BOOST升压电路可用于对第一无线接收电路132a和/或第二无线接收电路132b输出的电压进行升压，本公开不以此为限。
需要说明的是，本公开不限制电荷泵的转换比例，在实际应用中，根据实际的需求而设定，例如，可以被设置为1:1，2:1，3:1等。此外，当电池131包含多个串联的电芯或多个串联的电池单元时，电荷泵的转换比例还可以被设置为1:2，1:3等，以进行升压操作，从而满足电池131的充电电压需求。
此外，如上述，当电池131包含多个电芯或多个电池单元时，第一电压转换模块234a和/或第二电压转换模块234b输出的充电电压和/或充电电流可以分别地为每个电池单元或电芯充电，也可以将多个电池单元或多个电芯作为一个整体进行充电。
图4是本公开一个示例性实施例提供的另一种待充电设备的结构示意图。
参考图4，与图3所示的待充电设备23不同的是，图4所示的待充电设备33还可以进一步包括：第三电压转换模块334。
如图4所示，以第三电压转换模块334连接于第一无线接收电路132a和电池131为例，第三电压转换模块334也可以连接于第二无线接收电路132b与电池131之间。
在一些实施例中，如上述，在涓流充电阶段和/或恒流充电阶段或在上述第二充电模式下，或者当无线充电装置仅包含单个无线发射电路时，仅使用一个无线充电通道进行充电，例如使用第一无线发射电路121a与第一无线接收电路132a形成的无线充电通道为电池131充电，可以通过第三电压转换模块334对第一无线接收电路132a输出的电压进行转换，并将转换后的充电电压/充电电流直接加载在电池131两端，为其进行充电。
此时，控制模块133关闭第一电压转换模块234a与电池131之间的通道，并控制第三电压转换模块334工作，对第一无线接收电路132a输出的电压进行转换。
第三电压转换模块334例如也可以为BUCK电路或者为电荷泵(ChargePump)电路，或者还可以为BOOST升压电路等，本公开不以此为限。
此外，如上述，当电池131包含多个电芯或多个电池单元时，第一电压转换模块234a、第二电压转换模块234b及第三电压转换模块334的至少其中之一输出的充电电压和/或充电电流可以分别地为每个电池单元或电芯充电，也可以将多个电池单元或多个电芯作为一个整体进行充电。
图5是本公开一个示例性实施例提供的再一种待充电设备的结构示意图。
参考图5，与图4所示的待充电设备33不同的是，图5所示的待充电设备43中的第一电压转换模块234a与第二电压转换模块234b合并为一个电压转换模块234。当第一无线接收电路132a和第二无线接收电路132b同时工作时，电压转换模块234用于对第一无线接收电路132a和第二无线接收电路132b输出的充电电压和/或充电电流同时进行转换。当第一无线接收电路132a和第二无线接收电路132b中的其中之一工作时，则电压转换模块234用于对第一无线接收电路132a或第二无线接收电路132b的充电电压和/或充电电流同时进行转换。
图6是本公开一个示例性实施例提供的再一种待充电设备的结构示意图。
参考图6，与图4所示的待充电设备33不同的是，在图6所示的待充电设备53，第三电压转换模块334还连接与第二无线接收电路132b与电池131之间。
在一些实施例中，在涓流充电阶段和/或恒流充电阶段或在上述第二充电模式下，也可以通过两个使用两个无线充电通道进行充电，并通过第三电压转换模块334对第一无线接收电路132a和第二无线接收电路132b输出的电压进行转换，并将转换后的充电电压/充电电流直接加载在电池131两端，为其进行充电。
此时，控制模块133关闭第一电压转换模块234a与电池131之间的通道及第二电压转换模块234b与电池131之间的通道，并控制第三电压转换模块334工作，对第一无线接收电路132a和第二无线接收电路132b输出的电压进行转换。
联合参考图1～图6，控制模块133还可以可用于在无线充电装置12对待充电设备13(或待充电设备23/33/43/53)进行无线充电的过程中，与无线充电装置12进行无线通信。例如，与无线充电装置12中的控制模块122进行无线通信。通过通信，控制模块133可以将待充电设备13(或待充电设备23/33/43/53)的充电信息发送给无线充电装置12。该充电信息例如可以包括：第一无线接收电路132a和第二无线接收电路132b各自的充电信息，如各自的输出电压和/或输出电流等。无线充电装置12根据接收到的信息，调整无线发射电路的发射功率。
本公开对无线充电装置12与待充电设备13(或待充电设备23/33/43/53)之间的通信方式和通信顺序不做限定。
在一些实施例中，无线充电装置12与待充电设备13(或待充电设备23/33/43/53)之间的无线通信可以为单向的无线通信。以在电池131的无线充电过程中，待充电设备13(或待充电设备23/33/43/53)为通信的发起方，无线充电装置12为通信的接收方为例，例如，控制模块133可以将待充电设备13(或待充电设备23/33/43/53)的充电信息发送给无线充电装置12。
在一些实施例中，无线充电装置12与待充电设备13(或待充电设备23/33/43/53)之间的无线通信也可以为双向的无线通信。双向的无线通信一般要求接收方在接收到发起方发起的通信请求之后，向发起方发送响应信息。双向通信能够使得通信过程更安全。在双向的无线通信过程中，无线充电装置12与待充电设备13(或待充电设备23/33/43/53)中的任何一方均可作为主设备方发起双向通信会话，相应地另外一方可以作为从设备方对主设备方发起的通信做出第一响应或第一回复，进一步地主设备方在接收到第一响应或第一回复后作出针对性的第二响应，从而完成主、从设备之间的一次通信协商过程。
作为主设备方在接收到第一响应或第一回复后作出针对性的第二响应包括：主设备方在预设的时间内没有接收到从设备方针对通信会话的第一响应或第一回复，主设备方也会对所述从设备的第一响应或第一回复做出针对性的第二响应。
此外，在从设备方对主设备方发起的通信会话作出第一响应或第一回复后，也可以无需主设备方对从设备方的第一响应或第一回复作出针对性的第二响应，即可任务主、从设备方之间完成了一次通信协商过程。
在上述无线充电装置12与待充电设备13(或待充电设备23/33/43/53)的通信过程中，待充电设备13(或待充电设备23/33/43/53)中的控制模块133可将第一无线接收电路132a和第二无线接收电路132b各自的充电信息分别耦合至第一接收线圈1321a和第二接收线圈1321b，以发送至无线充电装置12的控制模块122。
或者，也可以将第一无线接收电路132a的充电信息和第二无线接收电路132b的充电信息，均通过一个无线接收电路的接收线圈进行发送，例如均通过第一接收线圈1321a发送，或均通过第二接收线圈1321b发送。第一无线接收电路132a和第二无线接收电路132b之间可以进行通信，以交互各自的充电信息。
再或者，待充电设备13(或待充电设备23/33/43/53)还可以通过蓝牙、WiFi、移动蜂窝网络通信(如2G、3G、4G或5G)、无线通信(如lEEE 802.11、802.15(WPANs)、802.16(WiMAX)、802.20等)、基于高频天线(如60GHz)的近距离无线通信、光通信(如红外线通信)、超声波通信、超宽带(UMB)通信等通信方式中的至少一种与无线充电装置12进行通信，以将上述反馈信息发送给无线充电装置12。可以理解的是，通过上述的通信方式进行通信时，待充电设备13(或待充电设备23/33/43/53)及无线充电装置12还包括相应的通信模块，如蓝牙通信模块、WiFi通信模块、2G/3G/4G/5G移动通信模块、高频天线、光通信模块。超声波通信模块、超宽带通信模块等中的至少一个。应理解，上述的无线通信可采用的标准包括以往的和现有的标准，在不背离本公开范围的前提下，还包括采用这些标准的未来版本和未来标准。通过上述的无线通信方式进行通信，可提高通信的可靠性，由此提高充电安全性。相比于相关技术(例如，Qi标准)中通过信号调制的方式将反馈信息耦合到无线接收电路的接收线圈进行通信的方式，可提高通信的可靠性，且可避免采用信号耦合方式通信带来的电压纹波，影响待充电设备中的电压转换模块的电压处理过程。此外，对于无线接收线圈输出时的电压纹波，如果不对纹波进行有效处理则可能导致无线充电安全问题，存在一定的安全隐患。通过上述的无线通信方式进行通信，则可消除电压纹波，从而可省去用于处理电压纹波的电路，降低待充电设备的充电电路的复杂性，提高充电效 率，节省电路设置空间，降低成本。
上述的充电信息例如可以包括：第一无线接收电路132a和第二无线接收电路132b各自的输出电压和/或输出电流。
无线充电装置12收到控制模块133反馈的充电信息后，无线充电装置12可以基于收到的充电信息，调整第一无线发射电路121a，以使得第一无线接收电路132a的输出电压和/或电流，与电池131所需的充电电压和/或充电电流相匹配；基于收到的充电信息，调整第二无线发射电路121b，以使得第二无线接收电路132b的输出电压和/或电流，与电池131所需的充电电压和/或充电电流相匹配。
应理解的是，上述的“相匹配”包括：无线接收电路的输出电压和/或输出电流与电池131所需的充电电压和/或充电电流在预设范围内浮动。
或者，无线充电装置12可以基于收到的充电信息，调整第一无线发射电路121a，以使得第一无线接收电路132a的输出电压和/或电流，满足电池131在上述的涓流充电阶段、恒流充电阶段及恒压充电阶段中的至少一个充电阶段的充电需求；基于收到的充电信息，调整第二无线发射电路121b，以使得第二无线接收电路132b的输出电压和/或电流，满足电池131在上述的涓流充电阶段、恒流充电阶段及恒压充电阶段中的至少一个充电阶段的充电需求。
此外，如上所述，控制模块133还可以向控制模块122发送电池状态信息。其中，电池状态信息包括：待充电设备13(或23/33)中的电池131的当前电量和/或当前电压。控制模块122接收到该电池状态信息后，首先可以根据该电池状态信息确定电池131当前所处的充电阶段，进而确定与电池131当前所处的充电阶段相匹配的目标输出电压值和/或目标充电电流；然后，控制模块122可以将控制模块133发送来的各无线接收电路的输出电压和/或输出电流与判断的、电池131当前所处的充电阶段的目标输出电压值和/或目标充电电流相比较，以确定各无线接收电路的输出电压和/或输出电流与判断的电池131当前所处的充电阶段是否匹配。如果不匹配，则调整各无线发射电路的发射功率，直到反馈的各无线接收电路的输出电压和/或输出电流与电池131当前所处的充电阶段相匹配。
此外，如上所述，控制模块133还可以向控制模块122直接反馈检测到的各无线接收电路的输出电压和/或输出电流，也可以反馈根据检测到的各无线接收电路的输出电压和/或输出电流确定的调整指令。该调整指令例如可以为增大或减小各无线发射电路的发射功率的指令。或者，无线充电装置12还可以为各无线发射电路设置发射功率的多个档位，则控制模块122每接收到一次该调整指令，就将各无线发射电路的发射功率的调整一个档位，直到反馈的各无线接收电路的输出电压和/或输出电流与电池131当前所处的充电阶段相匹配。或者，该调整指令还可以用于在充电发生异常时，指示无线充电装置停止充电，充电异常例如包括充电电流过流、过压、发热异常等。
此外，充电信息还可以包括：温度信息。该温度信息如可以包括下述信息中的至少其中之一：电池133的温度、待待充电设备13(或23/33)背部壳体的最高温度(如可检测背部壳体多个位置的温度，取其最高温度)及待充电设备13(或23/33)不同预设位置的温度。该温度信息例如可以通过第一接收线圈1321a和第二接收线圈1321b同时发送，也可以仅通过第一接收线圈1321a和第二接收线圈1321b的其中之一发送；再或者，也可以通过上述的其他无线通信模块发送。
如上述，无线充电装置12接收到上述待充电设备13(或23/33)反馈的充电信息后，可以基于该充电信息，调整第一无线发射电路121a和/或第二无线发射电路121b的发射功率。
当电源提供装置11的输出电压(或输出功率)固定不变时，则第一无线发射电路121a和第二无线发射电路121b的输入电压固定。此时，控制模块122可以基于上述待充电设备13(或23/33)反馈的充电信息，调整第一无线发射电路121a、第二无线发射电路121b的工作频率和/或发射的电磁信号的占空比，来调整第一无线发射电路121a和/或第二无线发射电路121b的发射功率。
此外，上述的充电信息还可以包括：温度信息。该温度信息如可以包括下述信息中的至少其中之一：电池133的温度、待待充电设备13(或23/33)背部壳体的最高温度(如可检测背部壳体多个位置的温度，取其最高温度)及待充电设备13(或23/33)各预设位置的温度信息，或者基于该温度信息的指示信息。控制模块122可以基于该温度信息或指示信息，通过调整第一无线发射电路121a、第二无线发射电路121b的工作频率和/或发射的电磁信号的占空比，来分别调整第一无线发射电路121a和/或第二无线发射电路121b的发射功率，从而实现对待充电设备13(或23/33)不同位置的温度控制。例如，待充电设备13(或23/33)第一无线接收电路132a附近的温度过高时，则降低与其耦合的第一无线发射电路121a的发射功率；而当第二无线接收电路132b附近的温度过高时，则降低与其耦合的第二无线发射电路121b的发射功率。
在一些实施例中，当电源提供装置11的输出电压和/或输出电流可调时，控制模块122还可以与电源提供装置11进行通信，请求电源提供装置提供相应的输出电压，以调整第一无线发射电路121a和/或第二无线发射电路121b的发射功率，从而使得第一无线接收电路132a和/或第二无线接收电路132b的输出电压和/或输出电流与电池131在当前充电阶段的充电需求相匹配。
此外，控制模块122还可以调整从电源提供装置11提供的输出功率中抽取的功率量，从而调整第一无线发射电路121a和/或第二无线发射电路121b的发射功率。例如，在无线充电装置12的内部设置功率调整电路。该功率调整电路例如可以包括脉冲宽度调制(Pulse Width Modulation，PWM)控制器和开关单元。控制模块122可以通过调整PWM控制器发出的控制信号的占空比，和/或通过控制开关单元的开关频率调整第一无线发射电路121a和/或第二无线发射电路121b的发射功率。
图7是本公开一个示例性实施例提供的一种无线充电装置的结构示意图。
参考图7，无线充电装置22还进一步包括：电压转换模块224。电压转换模块224分别与充电接口123、第一无线发射电路121a、第二无线发射电路121b及控制模块122连接，用于对电源提供装置11的输出电压和/或输出电流进行转换。
控制模块122还用于控制电压转换模块224对对电源提供装置11的输出电压和/或输出电流进行转换，以调整第一无线发射电路121a和/或第二无线发射电路121b的发射功率。
当电源提供装置11的输出电压(或输出功率)固定不变时，控制模块122可以通过调整电压转换模块224的输出电压和/或输出电流，来调整第一无线发射电路121a和/或第二无线发射电路121b的发射功率，从而如上述，匹配电池131各充电阶段的充电需求。
图8是本公开一个示例性实施例提供的另一种无线充电装置的结构示意图。
与图7所示的无线充电装置22不同的是，图8所示的无线充电装置32可以包括：第一电压转换模块324a和第二电压转换模块324b。
第一电压转换模块324a分别与充电接口123、第一无线发射电路121a及控制模块122连接，用于对经充电接口123输入的电压/电流(即电源提供装置11的输出电压和/或输出电流)进行转换。
第二电压转换模块324b分别与充电接口123、第二无线发射电路121b及控制模块122连接，用于对经充电接口123输入的电压/电流(即电源提供装置11的输出电压和/或输出电流)进行转换。
控制模块122基于接收到的第一无线接收电路132a的充电信息，控制第一电压转换模块324a对电源提供装置11的输出电压和/或输出电流进行转换，以调整第一无线发射电路121a的发射功率。此外，基于接收到的第二无线接收电路132b的充电信息，控制第二电压转换模块324b对电源提供装置11的输出电压和/或输出电流进行转换，以调整第二无线发射电路121b的发射功率。
通过分别为第一无线发射电路121a和第二无线发射电路121b设置电压转换模块，可以为第一无线发射电路121a和第二无线发射电路121b提供不同的输入电压和/或输入电流，从而可以将第一无线发射电路121a和第二无线发射电路121b的发射功率调整为不同值。
例如，当待充电设备13(或23/33)在不同预设位置的温度不同时，控制模块122可以基于该温度信息或指示信息，通过调整第一电压转换模块324a、第二电压转换模块324b，来分别调整第一无线发射电路121a和/或第二无线发射电路121b的发射功率，从而实现对待充电设备13(或23/33)不同位置的温度控制。例如，待充电设备13(或23/33)第一无线接收电路132a附近的温度过高时，则降低与其耦合的第一无线发射电路121a的发射功率；而当第二无线接收电路132b附近的温度过高时，则降低与其耦合的第二无线发射电路121b的发射功率。
上文是以无线充电装置12(或22/32)与电源提供装置11连接，从电源提供装置11获取电能为例进行说明的，但本公开不限于此，无线充电装置12(或22/32)也可以将类似适配器的功能集成在其内部，从而能够直接将外部输入的交流电(如市电)转换成上述电磁信号(或电磁波)。举例说明，可以将适配器的功能集成在无线充电装置12(或22/32)的无线发射电路(121a和/或121b)中，例如，可以在无线发射电路(121a和/或121b)中集成整流电路、初级滤波电路和/或变压器等。这样一来，无线发射电路(121a和/或121b)可用于接收外部输入的交流电(如220V的交流电，或称市电)，根据该交流电生成电磁信号(或电磁波)。在无线充电装置12或22内部集成类似适配器的功能，可以使得该无线充电装置12(或22/32)无需从外部的电源提供设备获取功率，提高了无线充电装置12(或22/32)的集成度，并减少了实现无线充电过程所需的器件的数量。
此外，无线充电装置12(或22/32)可以支持第一无线充电模式和第二无线充电模式，无线充电装置12(或22/32)在第一无线充电模式下对待充电设备13(或23/33)的充电速度快于无线充电装置12(或22/32)在第二无线充电模式下对待充电设备(或23/33)的充电速度。换句话说，相较于工作在第二无线充电模式下的无线充电装置12(或22/32)来说，工作在第一无线充电模式下的无线充电装置12(或22/32)充满相同容量的待充电设备13(或23/33)中的电池的耗时更短。
第一无线充电模式可为快速无线充电模式。在快速无线充电模式下，无线充电装置12(或22/32)的发射功率相对较大(通常大于或等于15W)。第二无线充电模式可以为普通无线充电模式，例如可以是传统的基于QI标准、PMA标准或A4WP标准的无线充电模式。该普通无线充电模式下，无线充电装置12(或22/32)的发射功率较小(通常小于15W，常用的发射功率为5W或10W)。
在一些实施例中，控制模块122与控制模块133进行双向通信，以控制在第一无线充电模式下的无线发射电路(121a和/或121b)的发射功率。
在一些实施例中，控制模块122与控制模块133可以进行双向通信，以控制在第一无线充电模式下的无线发射电路(121a和/或121b)的发射功率的过程可包括：控制模块122与控制模块133进行双向通信，以协商无线充电装置12(或22/32)与待充电设备13(或23/33)之间的无线充电模式。
例如，控制模块122与控制模块133进行握手通信，在握手通信成功的情况下，控制无线充电装置12(或22/32)使用第一无线充电模式为待充电设备13(或23/33)进行充电，在握手通信失败的情况下，控制无线充电装置12(或22/32)使用第二无线充电模式为待充电设备13(或23/33)进行充电。
握手通信可以指通信双方对彼此身份的识别。握手通信成功可以表示无线充电装置12(或22/32)和待充电设备13(或23/33)均支持发射功率可调的无线充电方式。握手通信失败可以表示无线充电装置12(或22/32)和待充电设备13(或23/33)中的至少一方不支持发射功率可调的无线充电方式。
在本公开中，无线充电装置12(或22/32)并非盲目地采用第一无线充电模式对待充电设备13(或23/33)进行快速无线充电，而是与待充电设备13(或23/33)进行双向通信，协商无线充电装置12(或22/32)是否可以采用第一无线充电模式对待充电设备13(或23/33)进行快速无线充电，这样能够提升充电过程的安全性。
在一些实施例中，控制模块122与控制模块133进行双向通信，以协商无线充电装置12(或22/32)与待充电设备13(或23/33)(或23/33)之间的无线充电模式例如可以包括：控制模块122向控制模块133发送第一指令，第一指令用于询问待充电设备13(或23/33)是否开启第一无线充电模式；控制模块122接收控制模块133发送的针对该第一指令的回复指令，回复指令用于指示待充电设备13(或23/33)是否同意开启第一无线充电模式；在待充电设备13(或23/33)同意开启第一无线充电模式的情况下，第一控制模块控制无线充电装置12(或22/32)使用第一无线充电模式为待充电设备13(或23/33)充电。
除了基于通信协商的方式确定无线充电模式之外，控制模块122还可以根据一些其他因素选取或切换无线充电模式，如控制模块122还可根据电池131的温度，控制无线充电装置12(或22/32)使用第一无线充电模式或第二无线充电模式为电池131充电。例如，当温度低于预设的低温阙值(如5℃或10℃)时，控制模块122可以控制无线充电装置12(或22/32)使用第二无线充电模式进行普通充电，当温度大于或等于低温阙值时，控制模块122可以控制无线充电装置12(或22/32)使用第一无线充电模式进行快速充电。进一步地，当温度高于高温阙值(如50℃)时，控制模块122可以控制无线充电装置12(或22/32)停止充电。
图9是本公开一个示例性实施例提供的再一种无线充电系统的结构示意图。
参考图9，无线充电系统2中的无线充电装置42中的控制模块122还可以进一步包括：第一控制模块1221与第二控制模块1222。其中，第一控制模块1221用于驱动第一无线发射电路121a与第二无线发射电路121b的工作。此外第一控制模块1221中还可以用于实现无线充电标准，如QI标准、PMA标准或A4WP标准等的控制流程。第二控制模块1222如可以用于与待充电设备13(或23/33)中控制模块133的通信，并基于控制模块133反馈的充电信息，控制第一控制模块1221，以调整第一无线发射电路121a和/或第二无线发射电路121b的发射功率。
此外，第一无线发射电路121a和第二无线发射电路121b还可以分别包括与发射线圈匹配的第一电容1213a和第二电容1213b。
此外，待充电设备63中的第一无线接收电路132a包括：第一接收线圈1321a和第一充电接收模块1324a。其中，第一充电接收模块1324a除了可以执行上述第一整型电路1322a中的整流和/或滤波操作外，还可以实现无线充电标准，如QI标准、PMA标准或A4WP标准等的控制流程及其他相关的保护控制功能。
第二无线接收电路132b包括：第二接收线圈1321b和第二充电接收模块1324b。其中，第二充电接收模块1324b除了可以执行上述第二整形电路1322b中的整流和/或滤波操作外，还可以实现无线充电标准，如QI标准、PMA标准或A4WP标准等的控制流程及其他相关的保护控制功能。
此外，第一充电接收模块1324a与第二充电接收模块1324b之间还可以进行通信，以传输对方的上述充电信息，从而通过第一无线接收电路132a和第二无线接收电路132b的其中之一来与无线充电装置42进行通信。
此外，第一无线接收电路132a和第二无线接收电路132b还可以进一步包括与接收线圈匹配的第一电容1323a和第二电容1323b。
图10是本公开一个示例性实施例提供的再一种无线充电系统的结构示意图。与图9所示的无线充电系统2不同之处在于，图10所示的无线充电系统3中的无线充电装置52中的控制模块122进一步包括：第一控制模块1221a，第二控制模块1221b及第三控制模块1222。其中第一控制模块1221a，第二控制模块1221b分别用于驱动第一无线发射电路121a与第二无线发射电路121b的工作。也即在无线充电装置52中，可以通过第一控制模块1221a控制第一无线发射电路121a，通过第二控制模块1221b控制第二无线发射电路121b。
图11是本公开一个示例性实施例提供的再一种无线充电系统的结构示意图。与图9所示的无线充电系统2不同之处在于，图11所示的无线充电系统4中的无线充电装置62仅包含第一无线发射电路121a。第一控制模块1221用于驱动第一无线发射电路121a工作。此外第一控制模块1221中还可以用于实现无线充电标准，如QI标准、PMA标准或A4WP标准等的控制流程。第二控制模块1222如可以用于与待充电设备13(或23/33)中控制模块133的通信，并基于控制模块133反馈的充电信息，控制第一控制模块1221，以调整第一无线发射电路121a的发射功率。
下面进一步描述本公开的方法实施例，可以应用于本公开装置实施例中。对于本公开方法实施例中未披露的细节，请参照本公开装置实施例。
图12是本公开一个示例性实施例提供的一种无线充电方法的流程图。该方法例如可以由上述的各实施例提供的待充电设备执行。
参考图12，无线充电方法10包括：
在步骤S102中，在不同充电阶段，通过待充电设备中的第一无线接收电路接收无线充电装置发射的电磁信号，和/或通过第二无线接收电路，接收无线充电装置发射的电磁信号。
在一些实施例中，充电阶段包括下述充电阶段的至少其中一种：涓流充电阶段、恒流充电阶段及恒压充电阶段。
在一些实施例中，步骤S102可以包括：在恒流充电阶段，通过第一无线接收电路和第二无线接收电路为电池充电。
在一些实施例中，步骤S102可以包括：在涓流充电阶段和/或恒压充电阶段，通过第一无线接收电路或第二无线接收电路为电池充电。
在步骤S104中，分别将电磁信号转换成输出电流，以为待充电设备中的电池充电。
在一些实施例中，当通过第一无线接收电路和第二无线接收电路同时为电池充电时，在步骤S104之前，方法10还可以包括：通过待充电设备中的第一电压转换模块对第一无线接收电路输出的充电电压和/或充电电流进行转换；及通过待充电设备中的第二电压转换模块为第二无线接收电路输出的充电电压和/或充电电流进行转换。
在一些实施例中，当通过第一无线接收电路或第二无线接收电路为电池充电时，也即仅通过第一无效接收电路和第二无效接收电路的其中之一为电池充电时，在步骤S104之前，方法10还可以包括：通过第一电压转换模块对第一无线接收电路输出的充电电压和/或充电电流进行转换；或者，通过第二电压转换模块对第二无线接收电路输出的充电电压和/或充电电流进行转换。
在一些实施例中，当通过第一无线接收电路或第二无线接收电路为电池充电时，也即仅通过第一无效接收电路和第二无效接收电路的其中之一为电池充电时，在步骤S104之前，方法10还可以包括：通过待充电设备中的第三电压转换模块对第一无线接收电路或者第二无线接收电路输 出的充电电压和/或充电电流进行转换。
在一些实施例中，方法10还可以包括：当检测到无线充电装置仅包含单个无线发射电路时，控制第一无线接收电路或所述第二无线接收电路为电池充电。
本公开实施例提供的无线充电方法，在不同充电阶段，可以使用不同数量的无效充电通道为待充电设备进行无线充电。当使用多个无线充电通道进行无线充电时，可以大幅地提升无线充电功率(如使用两个无线充电通道时，充电功率几乎可以实现翻倍；而如果使用三个无线充电时，充电功率几乎可以为单通道的三倍，以此类推)，从而加快电池的充电速度。
图13是本公开一个示例性实施例提供的另一种无线充电方法的流程图。相比于图12所示的无效充电方法10，图13所示的无线充电方法20还可以进一步包括：
在步骤S106中，将待充电设备的充电信息发送给无线充电装置。
在一些实施例中，充电信息包括：第一无线接收电路的输出电压和/或输出电流，第二无线接收电路的输出电压和/或输出电流。
在一些实施例中，步骤S106可以包括：通过第一无线接收电路，将第一无线接收电路的输出电压和/或输出电流发送给无线充电装置；及通过第二无线接收电路，将第二无线接收电路的输出电压和/或输出电流发送给无线充电装置；或者，通过第一无线接收电路与第二无线接收电路的其中之一，将第一无线接收电路的输出电压和/或输出电流，与第二无线接收电路的输出电压和/或输出电流，发送给无线充电装置。
在一些实施例中，充电信息还包括：温度信息；温度信息包括下述信息的至少其中之一：电池的温度、待充电设备背部壳体的最高温度及待充电设备不同预设位置的温度。
在一些实施例中，步骤S106可以包括：通过第一无线接收电路与第二无线接收电路的其中之一，将该温度信息发送给无线充电装置。
在一些实施例中，方法10还包括：根据待充电设备的充电信息，确定无线充电装置的调整指令；以及控制待充电设备将调整指令发送给无线充电装置；其中，调整指令用于指示无线充电装置增大或减小无线充电装置中各无线发射电路的发射功率，或者，调整指令用于指示无线充电装置在充电发生异常时停止充电，充电异常例如包括充电电流过流、过压、发热异常等。
图14是本公开一个示例性实施例提供的再一种无线充电方法的流程图。该方法例如可以由上述的各实施例提供的无线充电装置执行。
参考图14，无线充电方法30包括：
在步骤S302中，在待充电设备的不同充电阶段，通过无线充电装置中的第一无线发射电路和/或第二无线发射电路，将电源提供装置输入的电能转换为电磁信号进行发射，以为待充电设备进行无线充电。
在一些实施例中，充电阶段包括下述充电阶段的至少其中之一：涓流充电阶段、恒流充电阶段及恒压充电阶段。
在一些实施例中，步骤S302包括：在恒流充电阶段，通过第一无线发射电路和第二无线发射线路发射电磁信号。
在一些实施例中，步骤S302包括：在涓流充电阶段和/或恒压充电阶段，控制第一无线发射电路或第二发射电路发射电磁信号。
本公开实施例提供的无线充电方法，在不同充电阶段，可以使用不同数量的无效充电通道为待充电设备进行无线充电。当使用多个无线充电通道进行无线充电时，可以大幅地提升无线充电功率(如使用两个无线充电通道时，充电功率几乎可以实现翻倍；而如果使用三个无线充电时，充电功率几乎可以为单通道的三倍，以此类推)，从而加快电池的充电速度。
图15是本公开一个示例性实施例提供的再一种无线充电方法的流程图。与图14所示的无线充电方法30不同之处在于，图15所示的无效充电方法40还可以进一步包括：
在步骤S304中，接收待充电设备发送的充电信息。
在一些实施例中，充电信息包括：待充电设备中与第一无线发射电路匹配的第一无线接收电路的输出电压和/或输出电流，待充电设备中与第二无线发射电路匹配的第二无线接收电路的输出电压和/或输出电流。
在步骤S306中，基于充电信息，调整第一无线发射电路和/或第二无线发射电路的发射功率。
在一些实施例中，步骤S306包括：基于充电信息，通过无线充电装置中的电压转换模块对电 源提供装置提供的输出电压和/或输出电流进行转换，以调整第一无线发射电路和/或第二无线发射电路的发射功率。
在一些实施例中，步骤S306包括：基于第一无线接收电路的输出电压和/或输出电流，通过无线充电装置中的第一电压转换模块对电源提供装置提供的输出电压和/或输出电流进行转换，以调整第一无线发射电路的发射功率；及基于第二无线接收电路的输出电压和/或输出电流，通过无线充电装置中的第二电压转换模块对电源提供装置提供的输出电压和/或输出电流进行转换，以调整第二无线发射电路的发射功率。
在一些实施例中，述充电信息还包括：温度信息；温度信息包括下述信息的至少其中之一：电池的温度、待充电设备背部壳体的最高温度及待充电设备各预设位置的温度信息；步骤S306包括：基于该温度信息，通过第一电压转换模块对电源提供装置提供的输出电压和/或输出电流进行转换，以调整第一无线发射电路的发射功率；及基于该温度信息，通过第二电压转换模块对电源提供装置提供的输出电压和/或输出电流进行转换，以调整第二无线发射电路的发射功率。
在一些实施例中，步骤S306包括：基于充电信息，调整第一无线发射电路和第二无线发射电路的工作频率和/或电磁信号的占空比；或者，基于充电信息，调整第一无线发射电路的工作频率和/或电磁信号的占空比；或者，基于充电信息，调整第二无线发射电路的工作频率和/或电磁信号的占空比。
在一些实施例中，充电信息还包括：温度信息；温度信息包括下述信息的至少其中之一：电池的温度、待充电设备背部壳体的最高温度及待充电设备各预设位置的温度信息；步骤S306包括：基于该温度信息，调整第一无线发射电路和第二无线发射电路的工作频率和/或电磁信号的占空比；或者，基于该温度信息，调整第一无线发射电路的工作频率和/或电磁信号的占空比；或者，基于各预设位置的温度信息，调整第二无线发射电路的工作频率和/或电磁信号的占空比。
在一些实施例中，步骤S306包括：基于充电信息，向电源提供装置请求提供相应的输出电压，以调整第一无线发射电路和/或第二无线发射电路的发射功率。
在一些实施例中，充电信息包括：用于指示所述无线充电装置调整所述第一无线发射电路和/或所述第二无线发射电路发射功率的调整指令。步骤S306包括：根据该调整指令，调整第一无线发射电路和/或所述第二无线发射电路的发射功率；或者，根据该调整指令，停止对待充电设备充电。
图16是本公开一个示例性实施例提供的再一种无线充电方法的流程图。该方法例如可以由上述的各实施例提供的待充电设备执行。
参考图16，无线充电方法50包括：
在步骤S502中，在不同充电模式下，通过所述待充电设备中的第一无线接收电路接收无线充电装置发射的电磁信号，和/或通过所述待充电设备中的第二无线接收电路，接收所述无线充电装置发射的电磁信号。
其中，在不同的充电模式下，提供给所述电池的充电功率不同。
在一些实施例中，所述充电模式包括：第一充电模式和第二充电模式；其中，在所述第一充电模式下提供给所述电池的充电功率，高于在所述第二充电模式下提供给所述电池的充电功率。
在一些实施例中，步骤S502可以包括：在所述第一充电模式下，通过所述第一无线接收电路和所述第二无线接收电路为所述电池充电。
在一些实施例中，步骤S502可以包括：在第二充电模式下，通过所述第一无线接收电路或所述第二无线接收电路为所述电池充电。
在步骤S504中，分别将所述电磁信号转换成输出电流，以为所述待充电设备中的电池充电。
在一些实施例中，当通过第一无线接收电路和第二无线接收电路同时为电池充电时，在步骤S504之前，方法50还可以包括：通过待充电设备中的第一电压转换模块对第一无线接收电路输出的充电电压和/或充电电流进行转换；及通过待充电设备中的第二电压转换模块为第二无线接收电路输出的充电电压和/或充电电流进行转换。
在一些实施例中，当通过第一无线接收电路或第二无线接收电路为电池充电时，也即仅通过第一无效接收电路和第二无效接收电路的其中之一为电池充电时，在步骤S504之前，方法50还可以包括：通过第一电压转换模块对第一无线接收电路输出的充电电压和/或充电电流进行转换；或者，通过第二电压转换模块对第二无线接收电路输出的充电电压和/或充电电流进行转换。
在一些实施例中，当通过第一无线接收电路或第二无线接收电路为电池充电时，也即仅通过第一无效接收电路和第二无效接收电路的其中之一为电池充电时，在步骤S504之前，方法50还 可以包括：通过待充电设备中的第三电压转换模块对第一无线接收电路或者第二无线接收电路输出的充电电压和/或充电电流进行转换。
在一些实施例中，方法50还可以包括：当检测到无线充电装置仅包含单个无线发射电路时，控制第一无线接收电路或所述第二无线接收电路为电池充电。
本公开实施例提供的无线充电方法，在不同充电模式下，可以使用不同数量的无效充电通道为待充电设备进行无线充电。当使用多个无线充电通道进行无线充电时，可以大幅地提升无线充电功率(如使用两个无线充电通道时，充电功率几乎可以实现翻倍；而如果使用三个无线充电时，充电功率几乎可以为单通道的三倍，以此类推)，从而加快电池的充电速度。
图17是本公开一个示例性实施例提供的再一种无线充电方法的流程图。相比于图16所示的无效充电方法50，图17所示的无线充电方法60还可以进一步包括：
在步骤S506中，将待充电设备的充电信息发送给无线充电装置。
在一些实施例中，充电信息包括：第一无线接收电路的输出电压和/或输出电流，第二无线接收电路的输出电压和/或输出电流。
在一些实施例中，步骤S506可以包括：通过第一无线接收电路，将第一无线接收电路的输出电压和/或输出电流发送给无线充电装置；及通过第二无线接收电路，将第二无线接收电路的输出电压和/或输出电流发送给无线充电装置；或者，通过第一无线接收电路与第二无线接收电路的其中之一，将第一无线接收电路的输出电压和/或输出电流，与第二无线接收电路的输出电压和/或输出电流，发送给无线充电装置。
在一些实施例中，充电信息还包括：温度信息；温度信息包括下述信息的至少其中之一：电池的温度、待充电设备背部壳体的最高温度及待充电设备不同预设位置的温度。
在一些实施例中，步骤S506可以包括：通过第一无线接收电路与第二无线接收电路的其中之一，将该温度信息发送给无线充电装置。
在一些实施例中，方法60还包括：根据待充电设备的充电信息，确定无线充电装置的调整指令；以及控制待充电设备将调整指令发送给无线充电装置；其中，调整指令用于指示无线充电装置增大或减小无线充电装置中各无线发射电路的发射功率；或者，调整指令用于指示无线充电装置在充电发生异常时停止充电，充电异常例如包括充电电流过流、过压、发热异常等。
图18是本公开一个示例性实施例提供的再一种无线充电方法的流程图。该方法例如可以由上述的各实施例提供的无线充电装置执行。
参考图18，无线充电方法70包括：
在步骤S702中，在待充电设备的不同充电模式下，通过无线充电装置中的第一无线发射电路和/或第二无线发射电路，将电源提供装置输入的电能转换为电磁信号进行发射，以为待充电设备进行无线充电。
其中，在不同的充电模式下，无线充电装置输出的充电功率不同。
在一些实施例中，所述充电模式包括：第一充电模式和第二充电模式；其中，在所述第一充电模式下所述无线充电装置输出的充电功率，高于在所述第二充电模式下所述无线充电装置输出的充电功率
在一些实施例中，步骤S702包括：在第一充电模式下，通过第一无线发射电路和第二无线发射线路发射电磁信号。
在一些实施例中，步骤S702包括：在第二充电模式下，通过第一无线发射电路或第二发射电路发射电磁信号。
本公开实施例提供的无线充电方法，在不同充电模式下，可以使用不同数量的无效充电通道为待充电设备进行无线充电。当使用多个无线充电通道进行无线充电时，可以大幅地提升无线充电功率(如使用两个无线充电通道时，充电功率几乎可以实现翻倍；而如果使用三个无线充电时，充电功率几乎可以为单通道的三倍，以此类推)，从而加快电池的充电速度。
图19是本公开一个示例性实施例提供的再一种无线充电方法的流程图。与图18所示的无线充电方法70不同之处在于，图19所示的无线充电方法80还可以进一步包括：
在步骤S704中，接收待充电设备发送的充电信息。
在一些实施例中，充电信息包括：待充电设备中与第一无线发射电路匹配的第一无线接收电路的输出电压和/或输出电流，待充电设备中与第二无线发射电路匹配的第二无线接收电路的输出 电压和/或输出电流。
在步骤S706中，基于充电信息，调整第一无线发射电路和/或第二无线发射电路的发射功率。
在一些实施例中，步骤S706包括：基于充电信息，通过无线充电装置中的电压转换模块对电源提供装置提供的输出电压和/或输出电流进行转换，以调整第一无线发射电路和/或第二无线发射电路的发射功率。
在一些实施例中，步骤S706包括：基于第一无线接收电路的输出电压和/或输出电流，通过无线充电装置中的第一电压转换模块对电源提供装置提供的输出电压和/或输出电流进行转换，以调整第一无线发射电路的发射功率；及基于第二无线接收电路的输出电压和/或输出电流，通过无线充电装置中的第二电压转换模块对电源提供装置提供的输出电压和/或输出电流进行转换，以调整第二无线发射电路的发射功率。
在一些实施例中，述充电信息还包括：温度信息；温度信息包括下述信息的至少其中之一：电池的温度、待充电设备背部壳体的最高温度及待充电设备各预设位置的温度信息；步骤S706包括：基于该温度信息，通过第一电压转换模块对电源提供装置提供的输出电压和/或输出电流进行转换，以调整第一无线发射电路的发射功率；及基于该温度信息，通过第二电压转换模块对电源提供装置提供的输出电压和/或输出电流进行转换，以调整第二无线发射电路的发射功率。
在一些实施例中，步骤S706包括：基于充电信息，调整第一无线发射电路和第二无线发射电路的工作频率和/或电磁信号的占空比；或者，基于充电信息，调整第一无线发射电路的工作频率和/或电磁信号的占空比；或者，基于充电信息，调整第二无线发射电路的工作频率和/或电磁信号的占空比。
在一些实施例中，充电信息还包括：温度信息；温度信息包括下述信息的至少其中之一：电池的温度、待充电设备背部壳体的最高温度及待充电设备各预设位置的温度信息；步骤S306包括：基于该温度信息，调整第一无线发射电路和第二无线发射电路的工作频率和/或电磁信号的占空比；或者，基于该温度信息，调整第一无线发射电路的工作频率和/或电磁信号的占空比；或者，基于各预设位置的温度信息，调整第二无线发射电路的工作频率和/或电磁信号的占空比。
需要注意的是，上述附图仅是根据本公开示例性实施方式的方法所包括的处理的示意性说明，而不是限制目的。易于理解，上述附图所示的处理并不表明或限制这些处理的时间顺序。另外，也易于理解，这些处理可以是例如在多个模块中同步或异步执行的。
所属技术领域的技术人员能够理解，本公开的各个方面可以实现为系统、方法或程序产品。因此，本公开的各个方面可以具体实现为硬件和软件方面结合的实施方式，这里可以统称为“电路”、“模块”或“系统”。
在本公开的示例性实施例中，还提供了一种计算机可读存储介质，其上存储有能够实现本说明书上述方法的程序产品。在一些可能的实施方式中，本公开的各个方面还可以实现为一种程序产品的形式，其包括程序代码，当所述程序产品在终端设备上运行时，所述程序代码用于使所述终端设备执行本说明书上述“示例性方法”部分中描述的根据本公开各种示例性实施方式的步骤。
可读介质上包含的程序代码可以用任何适当的介质传输，包括但不限于无线、有线、光缆、RF等等，或者上述的任意合适的组合。
应当注意，尽管在上文详细描述中提及了用于动作执行的设备的若干模块或者单元，但是这种划分并非强制性的。实际上，根据本公开的实施方式，上文描述的两个或更多模块或者单元的特征和功能可以在一个模块或者单元中具体化。反之，上文描述的一个模块或者单元的特征和功能可以进一步划分为由多个模块或者单元来具体化。
此外，尽管在附图中以特定顺序描述了本公开中方法的各个步骤，但是，这并非要求或者暗示必须按照该特定顺序来执行这些步骤，或是必须执行全部所示的步骤才能实现期望的结果。附加的或备选的，可以省略某些步骤，将多个步骤合并为一个步骤执行，以及/或者将一个步骤分解为多个步骤执行等。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由所附的权利要求指出。

Claims (68)

  1. 一种待充电设备，其特征在于，包括：
    电池；
    至少两个无线接收电路，分别与所述电池连接，所述至少两个无线接收电路用于接收无线充电装置发射的电磁信号，并将所述电磁信号转换成输出电压和输出电流，以为所述电池充电；以及
    控制模块，分别与所述至少两个无线接收电路连接，用于在不同充电阶段，控制所述至少两个无线接收电路的至少其中之一为所述电池充电。
  2. 根据权利要求1所述的待充电设备，其特征在于，所述至少两个无线接收电路包括：第一无线接收电路和第二无线接收电路。
  3. 根据权利要求2所述的待充电设备，其特征在于，所述充电阶段包括恒流充电阶段；
    所述控制模块用于在所述恒流充电阶段，控制所述第一无线接收电路和所述第二无线接收电路为所述电池充电。
  4. 根据权利要求3所述的待充电设备，其特征在于，所述充电阶段还包括涓流充电阶段和/或恒压充电阶段；
    所述控制模块还用于在所述涓流充电阶段和/或所述恒压充电阶段，控制所述第一无线接收电路或所述第二无线接收电路为所述电池充电。
  5. 根据权利要求4所述的待充电设备，其特征在于，还包括：第一电压转换模块及第二电压转换模块；所述第一电压转换模块连接于所述第一无线接收电路和所述电池之间；所述第二电压转换模块连接于所述第二无线接收电路和所述电池之间；
    所述控制模块还用于：控制所述第一电压转换模块，对所述第一无线接收电路输出的充电电压和/或充电电流进行转换；控制所述第二电压转换模块，对所述第二无线接收电路输出的充电电压和/或充电电流进行转换。
  6. 根据权利要求2所述的待充电设备，其特征在于，所述充电阶段包括恒流充电阶段、恒压充电阶段及涓流充电阶段中的至少之一；所述待充电设备还包括：第一电压转换模块、第二电压转换模块及第三电压转换模块；其中，所述第一电压转换模块连接于所述第一无线接收电路和所述电池之间；所述第二电压转换模块连接于所述第二无线接收电路和所述电池之间；所述第三电压转换模块连接于所述第一无线接收电路和所述电池之间；
    所述控制模块还用于在所述恒流充电阶段，控制所述第一电压转换模块对所述第一无线接收电路输出的充电电压和/或充电电流进行转换，及控制所述第二电压转换模块对所述第二无线接收电路输出的充电电压和/或充电电流进行转换；
    所述控制模块还用于在所述涓流充电阶段和/或所述恒压充电阶段，控制所述第三电压转换模块，对所述第一无线接收电路输出的充电电压和/或充电电流进行转换。
  7. 根据权利要求2所述的待充电设备，其特征在于，所述控制模块还用于当所述无线充电装置仅包含单个无线发射电路时，控制所述第一无线接收电路或所述第二无线接收电路为所述电池充电。
  8. 根据权利要求7所述的待充电设备，其特征在于，还包括：第一电压转换模块、第二电压转换模块及第三电压转换模块；其中，所述第一电压转换模块连接于所述第一无线接收电路和所述电池之间；所述第二电压转换模块连接于所述第二无线接收电路和所述电池之间；所述第三电压转换模块连接于所述第一无线接收电路和所述电池之间；
    所述控制模块还用于当所述无线充电装置仅包含单个无线发射电路时，控制所述第三电压转换模块，对所述第一无线接收电路输出的充电电压和/或充电电流进行转换。
  9. 根据权利要求2所述的待充电设备，其特征在于，所述控制模块还用于控制所述待充电设备将所述待充电设备的充电信息发送给所述无线充电装置。
  10. 根据权利要求9所述的待充电设备，其特征在于，所述充电信息包括：所述第一无线接收电路的输出电压和/或输出电流，所述第二无线接收电路的输出电压和/或输出电流；
    所述控制模块还用于控制所述第一无线接收电路，向所述无线充电装置传输所述第一无线接收电路的输出电压和/或输出电流，及控制所述第二无线接收电路，向所述无线充电装置传输所述第二无线接收电路的输出电压和/或输出电流；或者，
    所述控制模块还用于控制所述至少两个无线接收电路的其中之一，向所述无线充电装置传输所述第一无线接收电路的输出电压和/或输出电流，与所述第二无线接收电路的输出电压和/或输出电流。
  11. 根据权利要求10所述的待充电设备，其特征在于，所述充电信息还包括：温度信息；所述温度信息包括下述信息的至少其中之一：所述电池的温度、所述待充电设备背部壳体的最高温度及所述待充电设备不同预设位置的温度；
    所述控制模块还用于控制所述至少两个无线接收电路的其中之一，向所述无线充电装置传输所述温度信息。
  12. 根据权利要求2所述的待充电设备，其特征在于，所述控制模块还用于根据所述待充电设备的充电信息，确定所述无线充电装置的调整指令，并控制所述待充电设备将所述调整指令发送给所述无线充电装置；其中，所述调整指令用于指示所述无线充电装置增大或减小所述无线充电装置中各无线发射电路的发射功率；或者，所述调整指令用于指示所述无线充电装置停止充电。
  13. 根据权利要求2-12任一项所述的待充电设备，其特征在于，所述第一无线接收电路包括：第一接收线圈及与所述第一接收线圈连接的第一交流/直流转换电路，所述第一无线接收电路通过所述第一接收线圈将接收的电磁信号转换为交流电，所述第一交流/直流转换将所述交流电转换为直流电；以及，
    所述第二无线接收电路包括：第二接收线圈及与所述第二接收线圈连接的第二交流/直流转换，所述第二无线接收电路通过所述第二接收线圈将接收的电磁信号转换为交流电，所述交流/直流转换电路将所述交流电转换为直流电。
  14. 根据权利要求13所述的待充电设备，其特征在于，所述第一接收线圈和所述第二接收线圈在所述待充电设备中被设置于同一个平面内。
  15. 根据权利要求2-12任一项所述的待充电设备，其特征在于，所述电池包含：多个电芯，所述多个电芯相互串联或相互并联。
  16. 一种待充电设备，其特征在于，包括：
    电池；
    至少两个无线接收电路，分别与所述电池连接，所述至少两个无线接收电路用于接收无线充电装置发射的电磁信号，并将所述电磁信号转换成输出电压和输出电流，以为所述电池充电；以及
    控制模块，分别与所述至少两个无线接收电路连接，用于在不同充电模式下，控制所述至少两个无线接收电路中的至少其中之一为所述电池充电；
    其中，在不同的充电模式下，所述待充电设备提供给所述电池的充电功率不同。
  17. 根据权利要求16所述的待充电设备，其特征在于，所述至少两个无线接收电路包括：第一无线接收电路和第二无线接收电路。
  18. 根据权利要求17所述的待充电设备，其特征在于，所述充电模式包括：第一充电模式和第二充电模式；其中，在所述第一充电模式下提供给所述电池的充电功率，高于在所述第二充电模式下提供给所述电池的充电功率；
    所述控制模块用于在所述第一充电模式下，控制所述第一无线接收电路和所述第二无线接收电路为所述电池充电。
  19. 根据权利要求18所述的待充电设备，其特征在于，所述控制模块还用于在所述第二充电模式下，控制所述第一无线接收电路或所述第二无线接收电路为所述电池充电。
  20. 根据权利要求19所述的待充电设备，其特征在于，还包括：第一电压转换模块及第二电压转换模块；所述第一电压转换模块连接于所述第一无线接收电路和所述电池之间；所述第二电压转换模块连接于所述第二无线接收电路和所述电池之间；
    所述控制模块还用于：控制所述第一电压转换模块，对所述第一无线接收电路输出的充电电压和/或充电电流进行转换；控制所述第二电压转换模块，对所述第二无线接收电路输出的充电电压和/或充电电流进行转换。
  21. 根据权利要求17所述的待充电设备，其特征在于，所述充电模式包括：第一充电模式和第二充电模式；其中，所述待充电设备在所述第一充电模式下提供给所述电池的充电功率，高于在所述第二充电模式下提供给所述电池的充电功率；
    所述待充电设备还包括：第一电压转换模块、第二电压转换模块及第三电压转换模块；其中，所述第一电压转换模块连接于所述第一无线接收电路和所述电池之间；所述第二电压转换模块连 接于所述第二无线接收电路和所述电池之间；所述第三电压转换模块连接于所述第一无线接收电路和所述电池之间；
    所述控制模块还用于在第一充电模式下，控制所述第一电压转换模块对所述第一无线接收电路输出的充电电压和/或充电电流进行转换，及控制所述第二电压转换模块，对所述第二无线接收电路输出的充电电压和/或充电电流进行转换；
    所述控制模块还用于在所述第二充电模式下，控制所述第三电压转换模块，对所述第一无线接收电路输出的充电电压和/或充电电流进行转换。
  22. 一种无线充电装置，其特征在于，包括：
    充电接口，用于接收电源提供装置输入的电能；
    至少两个无线发射电路，分别与所述充电接口连接，所述至少两个无线发射电路分别用于将所述电能转换为电磁信号进行发射，以为待充电设备进行无线充电；以及
    控制模块，分别与所述至少两个无线发射电路连接，用于在所述待充电设备的不同充电阶段控制所述至少两个无线发射电路的至少其中之一发射所述电磁信号。
  23. 根据权利要求22所述的无线充电装置，其特征在于，所述至少两个无线发射电路包括：第一无线发射电路和第二无线发射电路。
  24. 根据权利要求23所述的无线充电装置，其特征在于，所述充电阶段包括恒流充电阶段；
    所述控制模块用于在所述恒流充电阶段，控制所述第一无线发射电路和所述第二无线发射线路发射所述电磁信号。
  25. 根据权利要求24所述的无线充电装置，其特征在于，所述充电阶段还包括涓流充电阶段和/或恒压充电阶段；
    所述控制模块还用于在所述涓流充电阶段和/或所述恒压充电阶段，控制第一无线发射电路或所述第二发射电路发射所述电磁信号。
  26. 根据权利要求23-25任一项所述的无线充电装置，其特征在于，所述控制模块还用于接收所述待充电设备发送的充电信息，及基于所述充电信息，调整所述第一无线发射电路和/或所述第二无线发射电路的发射功率。
  27. 根据权利要求26所述的无线充电装置，其特征在于，所述充电信息包括：所述待充电设备中与所述第一无线发射电路匹配的第一无线接收电路的输出电压和/或输出电流，所述待充电设备中与所述第二无线发射电路匹配的第二无线接收电路的输出电压和/或输出电流。
  28. 根据权利要求27所述的无线充电装置，其特征在于，还包括：电压转换模块，分别与所述充电接口、所述第一无线发射电路、所述第二无线发射电路及所述控制模块连接；所述控制模块用于基于所述充电信息，控制所述电压转换模块对所述电源提供装置提供的输出电压和/或输出电流进行转换，以调整所述第一无线发射电路和/或所述第二无线发射电路的发射功率。
  29. 根据权利要求27所述的无线充电装置，其特征在于，还包括：第一电压转换模块和第二电压转换模块；其中，所述第一电压转换模块分别与所述充电接口、所述第一无线发射电路及所述控制模块连接；所述第二电压转换模块分别与所述充电接口、所述第二无线发射电路及所述控制模块连接；所述控制模块用于基于所述第一无线接收电路的输出电压和/或输出电流，控制所述第一电压转换模块对所述电源提供装置提供的输出电压和/或输出电流进行转换，以调整所述第一无线发射电路的发射功率，及基于所述第二无线接收电路的输出电压和/或输出电流，控制所述第二电压转换模块对所述电源提供装置提供的输出电压和/或输出电流进行转换，以调整所述第二无线发射电路的发射功率。
  30. 根据权利要求29所述的无线充电装置，其特征在于，所述充电信息还包括：温度信息；所述温度信息包括下述信息的至少其中之一：所述待充电设备电池的温度、所述待充电设备背部壳体的最高温度及所述待充电设备各预设位置的温度信息；
    所述控制模块还用于基于所述温度信息，控制所述第一电压转换模块对所述电源提供装置提供的输出电压和/或输出电流进行转换，以调整所述第一无线发射电路的发射功率，及基于所述温度信息，控制所述第二电压转换模块对所述电源提供装置提供的输出电压和/或输出电流进行转换，以调整所述第二无线发射电路的发射功率。
  31. 根据权利要求27所述的无线充电装置，其特征在于，所述控制模块用于基于所述充电信息，调整所述第一无线发射电路和所述第二无线发射电路的工作频率和/或所述电磁信号的占空比，以调整所述第一无线发射电路和所述第二无线发射电路的发射功率；或者，调整所述第一无线发射电路的工作频率和/或所述电磁信号的占空比，以调整所述第一无线发射电路的发射功 率；或者，调整所述第二无线发射电路的工作频率和/或所述电磁信号的占空比，以调整所述第二无线发射电路的发射功率。
  32. 根据权利要求31所述的无线充电装置，其特征在于，所述充电信息还包括：温度信息；所述温度信息包括下述信息的至少其中之一：所述电池的温度、所述待充电设备背部壳体的最高温度及所述待充电设备各预设位置的温度信息；所述控制模块还用于基于所述温度信息，调整所述第一无线发射电路和所述第二无线发射电路的工作频率和/或所述电磁信号的占空比，以调整所述第一无线发射电路和/或所述第二无线发射电路的发射功率；或者，调整所述第一无线发射电路的工作频率和/或所述电磁信号的占空比，以调整所述第一无线发射电路的发射功率；或者，调整所述第二无线发射电路的工作频率和/或所述电磁信号的占空比，以调整所述第二无线发射电路的发射功率。
  33. 根据权利要求27所述的无线充电装置，其特征在于，所述控制模块用于基于所述充电信息，向所述电源提供装置请求提供与所述充电信息相应的输出电压，以调整所述第一无线发射电路和/或所述第二无线发射电路的发射功率。
  34. 根据权利要求27所述的无线充电装置，其特征在于，所述充电信息包括：用于指示所述无线充电装置调整所述第一无线发射电路和/或所述第二无线发射电路发射功率的调整指令；所述控制模块用于根据所述调整指令，调整所述第一无线发射电路和/或所述第二无线发射电路的发射功率；或者，根据所述调整指令停止对所述待充电设备充电。
  35. 一种无线充电装置，其特征在于，包括：
    充电接口，用于接收电源提供装置输入的电能；
    至少两个无线发射电路，分别与所述充电接口连接，所述至少两个无线发射电路分别用于将所述电能转换为电磁信号进行发射，以为待充电设备进行无线充电；以及
    控制模块，分别与所述至少两个无线发射电路连接，用于在所述待充电设备的不同充电模式下控制所述至少两个无线发射电路的至少其中之一发射所述电磁信号；
    其中，在不同的充电模式下，所述无线充电装置输出的充电功率不同。
  36. 根据权利要求35所述的无线充电装置，其特征在于，所述至少两个无线发射电路包括：第一无线发射电路和第二无线发射电路。
  37. 根据权利要求36所述的无线充电装置，其特征在于，所述充电模式包括：第一充电模式和第二充电模式；其中，在所述第一充电模式下所述无线充电装置输出的充电功率，高于在所述第二充电模式下所述无线充电装置输出的充电功率；
    所述控制模块用于在所述第一充电模式下，控制所述第一无线发射电路和所述第二无线发射线路发射所述电磁信号。
  38. 根据权利要求37所述的无线充电装置，其特征在于，所述控制模块还用于在所述第二充电模式下，控制第一无线发射电路或所述第二发射电路发射所述电磁信号。
  39. 一种无线充电系统，其特征在于，包括：待充电设备及无线充电装置；
    所述待充电设备包括电池及至少两个无线接收线圈；所述无线充电装置包括至少两个无线发射线圈；
    其中，所述至少两个无线发射线圈用于将电能转换为电磁信号进行发射；
    所述至少两个无线接收线圈用于在不同充电阶段，接收所述无线充电装置发射的所述电磁信号；
    其中，所述至少两个无线发射线圈与所述至少两个无线接收线圈一一匹配。
  40. 一种无线充电方法，应用于待充电设备中，其特征在于，包括：
    在不同充电阶段，通过所述待充电设备中的第一无线接收电路接收无线充电装置发射的电磁信号，和/或通过所述待充电设备中的第二无线接收电路，接收所述无线充电装置发射的电磁信号；以及
    分别将所述电磁信号转换成输出电流，以为所述待充电设备中的电池充电。
  41. 根据权利要求40所述的方法，其特征在于，所述充电阶段包括恒流充电阶段；在不同充电阶段，通过所述待充电设备中的第一无线接收电路和/或第二无线接收电路为所述待充电设备中的电池充电包括：
    在所述恒流充电阶段，通过所述第一无线接收电路和所述第二无线接收电路为所述电池充电。
  42. 根据权利要求41所述的方法，其特征在于，还包括：
    通过所述待充电设备中的第一电压转换模块对所述第一无线接收电路输出的充电电压和/或 充电电流进行转换；及
    通过所述待充电设备中的第二电压转换模块为所述第二无线接收电路输出的充电电压和/或充电电流进行转换。
  43. 根据权利要求42所述的方法，其特征在于，所述充电阶段还包括涓流充电阶段和/或恒压充电阶段；在不同充电阶段，通过所述待充电设备中的第一无线接收电路和/或第二无线接收电路为所述待充电设备中的电池充电还包括：
    在所述涓流充电阶段和/或所述恒压充电阶段，通过所述第一无线接收电路或所述第二无线接收电路为所述电池充电。
  44. 根据权利要求43所述的方法，其特征在于，还包括：通过所述第一电压转换模块对所述第一无线接收电路输出的充电电压和/或充电电流进行转换；或者，通过所述第二电压转换模块对所述第二无线接收电路输出的充电电压和/或充电电流进行转换。
  45. 根据权利要求43所述的方法，其特征在于，还包括：通过所述待充电设备中的第三电压转换模块对所述第一无线接收电路或者所述第二无线接收电路输出的充电电压和/或充电电流进行转换。
  46. 根据权利要求40所述的方法，其特征在于，还包括：当检测到所述无线充电装置仅包含单个无线发射电路时，控制所述第一无线接收电路或所述第二无线接收电路为所述电池充电。
  47. 根据权利要求40所述的方法，其特征在于，还包括：将所述待充电设备的充电信息发送给所述无线充电装置。
  48. 根据权利要求47所述的方法，其特征在于，所述充电信息包括：所述第一无线接收电路的输出电压和/或输出电流，所述第二无线接收电路的输出电压和/或输出电流；将所述待充电设备的充电信息发送给无线充电装置包括：
    通过所述第一无线接收电路，将所述第一无线接收电路的输出电压和/或输出电流发送给所述无线充电装置；及通过所述第二无线接收电路，将所述第二无线接收电路的输出电压和/或输出电流发送给所述无线充电装置；或者，
    通过所述第一无线接收电路与所述第二无线接收电路的其中之一，将所述第一无线接收电路的输出电压和/或输出电流，与所述第二无线接收电路的输出电压和/或输出电流，发送给所述无线充电装置。
  49. 根据权利要求48所述的方法，其特征在于，所述充电信息还包括：温度信息；所述温度信息包括下述信息的至少其中之一：所述电池的温度、所述待充电设备背部壳体的最高温度及所述待充电设备不同预设位置的温度；将所述待充电设备的充电信息发送给无线充电装置还包括：
    通过所述第一无线接收电路与所述第二无线接收电路的其中之一，将所述温度信息发送给所述无线充电装置。
  50. 根据权利要求40所述的方法，其特征在于，还包括：
    根据所述待充电设备的充电信息，确定所述无线充电装置的调整指令；以及
    控制所述待充电设备将所述调整指令发送给所述无线充电装置；
    其中，所述调整指令用于指示所述无线充电装置增大或减小所述无线充电装置中各无线发射电路的发射功率；或者，所述调整指令用于指示所述无线充电装置停止充电。
  51. 一种无线充电方法，应用于待充电设备中，其特征在于，包括：
    在不同充电模式下，通过所述待充电设备中的第一无线接收电路接收无线充电装置发射的电磁信号，和/或通过所述待充电设备中的第二无线接收电路，接收所述无线充电装置发射的电磁信号；以及
    分别将所述电磁信号转换成输出电流，以为所述待充电设备中的电池充电；
    其中，在不同的充电模式下，所述待充电设备提供给所述电池的充电功率不同。
  52. 根据权利要求51所述的方法，其特征在于，所述充电模式包括：第一充电模式和第二充电模式；其中，在所述第一充电模式下提供给所述电池的充电功率，高于在所述第二充电模式下提供给所述电池的充电功率；在不同充电模式下，通过所述待充电设备中的第一无线接收电路和/或第二无线接收电路为所述待充电设备中的电池充电包括：
    在所述第一充电模式下，通过所述第一无线接收电路和所述第二无线接收电路为所述电池充电。
  53. 根据权利要求52所述的方法，其特征在于，在不同充电模式下，通过所述待充电设备中的第一无线接收电路和/或第二无线接收电路为所述待充电设备中的电池充电还包括：
    在第二充电模式下，通过所述第一无线接收电路或所述第二无线接收电路为所述电池充电。
  54. 一种无线充电方法，应用于无线充电装置中，其特征在于，包括：
    在待充电设备的不同充电阶段，通过所述无线充电装置中的第一无线发射电路和/或第二无线发射电路，将电源提供装置输入的电能转换为电磁信号进行发射，以为待充电设备进行无线充电。
  55. 根据权利要求54所述的方法，其特征在于，所述充电阶段包括恒流充电阶段；在待充电设备的不同充电阶段，通过所述无线充电装置中的第一无线发射电路和/或第二无线发射电路，将电源提供装置输入的电能转换为电磁信号进行发射包括：
    在所述恒流充电阶段，通过所述第一无线发射电路和所述第二无线发射线路发射所述电磁信号。
  56. 根据权利要求55所述的方法，其特征在于，所述充电阶段包括涓流充电阶段和/或恒压充电阶段；在待充电设备的不同充电阶段，通过所述无线充电装置中的第一无线发射电路和/或第二无线发射电路，将电源提供装置输入的电能转换为电磁信号进行发射还包括：
    在所述涓流充电阶段和/或所述恒压充电阶段，控制第一无线发射电路或所述第二发射电路发射所述电磁信号。
  57. 根据权利要求54-56任一项所述的方法，其特征在于，还包括：
    接收所述待充电设备发送的充电信息；以及
    基于所述充电信息，调整所述第一无线发射电路和/或所述第二无线发射电路的发射功率。
  58. 根据权利要求57所述的方法，其特征在于，所述充电信息包括：所述待充电设备中与所述第一无线发射电路匹配的第一无线接收电路的输出电压和/或输出电流，所述待充电设备中与所述第二无线发射电路匹配的第二无线接收电路的输出电压和/或输出电流。
  59. 根据权利要求58所述的方法，其特征在于，基于所述充电信息，调整所述第一无线发射电路和/或所述第二无线发射电路的发射功率包括：
    基于所述充电信息，通过所述无线充电装置中的电压转换模块对所述电源提供装置提供的输出电压和/或输出电流进行转换，以调整所述第一无线发射电路和/或所述第二无线发射电路的发射功率。
  60. 根据权利要求58所述的方法，其特征在于，基于所述充电信息，调整所述第一无线发射电路和/或所述第二无线发射电路的发射功率包括：
    基于所述第一无线接收电路的输出电压和/或输出电流，通过所述无线充电装置中的第一电压转换模块对所述电源提供装置提供的输出电压和/或输出电流进行转换，以调整所述第一无线发射电路的发射功率；及
    基于所述第二无线接收电路的输出电压和/或输出电流，通过所述无线充电装置中的第二电压转换模块对所述电源提供装置提供的输出电压和/或输出电流进行转换，以调整所述第二无线发射电路的发射功率。
  61. 根据权利要求60所述的方法，其特征在于，所述充电信息还包括：温度信息；所述温度信息包括下述信息的至少其中之一：所述待充电设备电池的温度、所述待充电设备背部壳体的最高温度及所述待充电设备各预设位置的温度信息；基于所述充电信息，调整所述第一无线发射电路和/或所述第二无线发射电路的发射功率还包括：
    基于所述温度信息，通过所述第一电压转换模块对所述电源提供装置提供的输出电压和/或输出电流进行转换，以调整所述第一无线发射电路的发射功率；及
    基于所述温度信息，通过所述第二电压转换模块对所述电源提供装置提供的输出电压和/或输出电流进行转换，以调整所述第二无线发射电路的发射功率。
  62. 根据权利要求58所述的方法，其特征在于，基于所述充电信息，调整所述第一无线发射电路和/或所述第二无线发射电路的发射功率包括：
    基于所述充电信息，调整所述第一无线发射电路和所述第二无线发射电路的工作频率和/或所述电磁信号的占空比，以调整所述第一无线发射电路和所述第二无线发射电路的发射功率；或者，
    基于所述充电信息，调整所述第一无线发射电路的工作频率和/或所述电磁信号的占空比，以调整所述第一无线发射电路的发射功率；或者，
    基于所述充电信息，调整所述第二无线发射电路的工作频率和/或所述电磁信号的占空比，以调整所述第二无线发射电路的发射功率。
  63. 根据权利要求62所述的方法，其特征在于，所述充电信息还包括：温度信息；所述温度信息包括下述信息的至少其中之一：所述电池的温度、所述待充电设备背部壳体的最高温度及所述待充电设备各预设位置的温度信息；基于所述充电信息，调整所述第一无线发射电路和/或所述第二无线发射电路的发射功率还包括：
    基于所述温度信息，调整所述第一无线发射电路和所述第二无线发射电路的工作频率和/或所述电磁信号的占空比，以调整所述第一无线发射电路和所述第二无线发射电路的发射功率；或者，
    基于所述温度信息，调整所述第一无线发射电路的工作频率和/或所述电磁信号的占空比，以调整所述第一无线发射电路的发射功率；或者，
    基于各预设位置的温度信息，调整所述第二无线发射电路的工作频率和/或所述电磁信号的占空比，以调整所述第二无线发射电路的发射功率。
  64. 根据权利要求58所述的方法，其特征在于，基于所述充电信息，调整所述第一无线发射电路和/或所述第二无线发射电路的发射功率包括：
    基于所述充电信息，向所述电源提供装置请求提供与所述充电信息相应的输出电压，以调整所述第一无线发射电路和/或所述第二无线发射电路的发射功率。
  65. 根据权利要求57所述的方法，其特征在于，所述充电信息包括：用于指示所述无线充电装置调整所述第一无线发射电路和/或所述第二无线发射电路发射功率的调整指令；基于所述充电信息，调整所述第一无线发射电路和/或所述第二无线发射电路的发射功率包括：根据所述调整指令，调整所述第一无线发射电路和/或所述第二无线发射电路的发射功率；或者，根据所述调整指令，停止对所述待充电设备充电。
  66. 一种无线充电方法，应用于无线充电装置中，其特征在于，包括：
    在待充电设备的不同充电模式下，通过所述无线充电装置中的第一无线发射电路和/或第二无线发射电路，将电源提供装置输入的电能转换为电磁信号进行发射，以为待充电设备进行无线充电；
    其中，在不同的充电模式下，所述无线充电装置输出的充电功率不同。
  67. 根据权利要求66所述的方法，其特征在于，所述充电模式包括：第一充电模式和第二充电模式；其中，在所述第一充电模式下所述无线充电装置输出的充电功率，高于在所述第二充电模式下所述无线充电装置输出的充电功率；在待充电设备的不同充电模式下，通过所述无线充电装置中的第一无线发射电路和/或第二无线发射电路，将电源提供装置输入的电能转换为电磁信号进行发射包括：
    在所述第一充电模式下，通过所述第一无线发射电路和所述第二无线发射线路发射所述电磁信号。
  68. 根据权利要求67所述的方法，其特征在于，在待充电设备的不同充电模式下，通过所述无线充电装置中的第一无线发射电路和/或第二无线发射电路，将电源提供装置输入的电能转换为电磁信号进行发射还包括：
    在所述第二充电模式下，控制第一无线发射电路或所述第二发射电路发射所述电磁信号。
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