WO2021098846A1 - 一种无线充电系统和无线充电方法 - Google Patents

一种无线充电系统和无线充电方法 Download PDF

Info

Publication number
WO2021098846A1
WO2021098846A1 PCT/CN2020/130596 CN2020130596W WO2021098846A1 WO 2021098846 A1 WO2021098846 A1 WO 2021098846A1 CN 2020130596 W CN2020130596 W CN 2020130596W WO 2021098846 A1 WO2021098846 A1 WO 2021098846A1
Authority
WO
WIPO (PCT)
Prior art keywords
wireless charging
electronic device
receiving
circuit
charging device
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/CN2020/130596
Other languages
English (en)
French (fr)
Inventor
丁涛
朱勇发
陈振升
刘凯珺
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.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co 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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to KR1020227020400A priority Critical patent/KR102680015B1/ko
Priority to EP20889527.6A priority patent/EP4054055A4/en
Publication of WO2021098846A1 publication Critical patent/WO2021098846A1/zh
Priority to US17/748,569 priority patent/US20230103280A9/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14Inductive couplings
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/1613Constructional details or arrangements for portable computers
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/1613Constructional details or arrangements for portable computers
    • G06F1/1632External expansion units, e.g. docking stations
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/1613Constructional details or arrangements for portable computers
    • G06F1/1633Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1662Details related to the integrated keyboard
    • G06F1/1669Detachable keyboards
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • G06F1/266Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/0202Constructional details or processes of manufacture of the input device
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/34Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36Electric or magnetic shields or screens
    • H01F27/366Electric or magnetic shields or screens made of ferromagnetic material
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/005Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/70Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80Circuit 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
    • H02J7/342The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • G06F3/0231Cordless keyboards
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/02Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/04Modulator circuits; Transmitter circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/02Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06Demodulator circuits; Receiver circuits

Definitions

  • the embodiments of the present application relate to the field of wireless charging technology, and in particular, to a wireless charging system and a wireless charging method.
  • the embodiments of the present application provide a wireless charging system and a wireless charging method, which can realize that the first electronic device receives wireless charging in a forward direction or charges other electronic devices in a reverse direction without removing the smart accessory, thereby improving the user experience.
  • a wireless charging system in a first aspect of the embodiments of the present application, includes a first electronic device, a wireless charging device, and a second electronic device.
  • the wireless charging device is located in the first electronic device and the second electronic device.
  • the wireless charging device includes a receiving circuit and a housing, the receiving circuit includes a receiving coil, and the receiving coil is located at The inside of the housing; the first electronic device is used to charge the wireless charging device, used to charge the second electronic device through the wireless charging device, and used to receive the second electronic device through the wireless charging device The electrical energy of the device.
  • the second electronic device is charged through the wireless charging device through the first electronic device, and the power from the second electronic device is received through the wireless charging device, thereby eliminating the need to remove the wireless charging device from the first electronic device.
  • the first electronic device can be used to receive wireless charging in the forward direction or charge other electronic devices in the reverse direction.
  • the first electronic device charges the second electronic device or receives power from the second electronic device
  • the first electronic device and the second electronic device The electromagnetic field between penetrates the above-mentioned wireless charging device.
  • the electromagnetic field penetrates the wireless charging device between the first electronic device and the second electronic device, so that the first electronic device can be wirelessly charged.
  • the charging device charges the second electronic device, and receives power from the second electronic device through the wireless charging device.
  • the receiving coil and the inner side of the housing there is no magnetic material between the receiving coil and the inner side of the housing, or there is no magnetic material between the receiving coil and the inner side of the housing
  • the area is less than a preset threshold; when the first electronic device is charging the second electronic device, or the first electronic device receives power from the second electronic device, the wireless charging receiving function of the receiving circuit is turned off
  • the above-mentioned wireless charging device is used to determine that it has a wireless charging requirement, and based on the wireless charging requirement, turn on the wireless charging receiving function of the above-mentioned receiving circuit.
  • the wireless charging receiving function of the receiving circuit of the wireless charging device is turned off, thereby making There will be no ASK communication conflict between the wireless charging device and the second electronic device, and it will not cause the FOD protection to malfunction.
  • the area of no magnetic material or magnetic material on the receiving coil of the wireless charging device is smaller than the preset threshold, the electromagnetic field between the first electronic device and the second electronic device can pass through the wireless charging device to realize the penetration of the first electronic device.
  • the second electronic device is charged by the wireless charging device, or the first electronic device can receive power from the second electronic device through the wireless charging device.
  • this solution can not only enable the first electronic device to charge the wireless charging device, but also when the first electronic device charges the second electronic device, or when the first electronic device receives power from the second electronic device.
  • the wireless power is transparently transmitted, so that the first electronic device does not need to remove the wireless charging device from the first electronic device, so that the first electronic device can receive the wireless charging in the forward direction or charge other electronic devices in the reverse direction.
  • the foregoing receiving circuit further includes an output switch and an ASK modulation circuit
  • the wireless charging receiving function of the foregoing receiving circuit is in the off state, including: the output switch It is in the off state, and the modulation function of the ASK modulation circuit is in the off state; the wireless charging device is specifically configured to turn on the modulation function of the ASK modulation circuit and close the output switch based on the wireless charging requirement.
  • the output switch and the modulation function of the ASK modulation circuit are turned off, so that the first electronic device When the device is receiving wireless charging or charging other electronic devices in the reverse direction, the loss of the wireless charging device is small and will not cause FOD protection and ASK communication conflicts.
  • the modulation function of the ASK modulation circuit is turned on and the output switch is closed, so that the first electronic device can charge the wireless charging device.
  • the foregoing wireless charging device is specifically configured to determine that the wireless charging device has a wireless charging requirement according to an instruction input by a user or detection information of a sensor;
  • the wireless charging device is specifically further configured to receive first information from the above-mentioned first electronic device, and determine that the wireless charging device has a wireless charging requirement based on the first information. Based on this solution, it can be determined that the wireless charging device has a charging requirement according to the instruction input by the user or the detection information of the sensor, and it can also be determined that the wireless charging device has a charging requirement by receiving protocol data sent by the first electronic device.
  • the above-mentioned wireless charging device is further configured to send second information to the above-mentioned first electronic device when the wireless charging device is completely charged.
  • the second information is used to indicate that the charging of the wireless charging device is completed; the wireless charging device is also used to turn off the modulation function of the ASK modulation circuit and turn off the output switch when the wireless charging device is fully charged.
  • the second information indicating that the charging is completed can be sent to the first electronic device, so that the first electronic device turns off its transmitting function; the wireless charging device can also, when its charging is completed, Turn off the modulation function of the ASK modulation circuit and turn off the output switch, so that when the first electronic device does not correctly receive the data sent from the receiving end device within the preset time period, it turns off its transmitting function.
  • the foregoing receiving circuit further includes one or more first switches, a matching circuit, and a rectifier circuit, and both ends of the foregoing coil are connected to the matching circuit.
  • the input terminal is connected, and the output terminal of the matching circuit is connected to the input terminal of the rectifier circuit.
  • the position of the one or more first switches includes: the position between the coil and the matching circuit, or the matching circuit and the rectifier circuit One or more of the positions between the input ends.
  • the foregoing receiving circuit further includes an output switch and an ASK modulation circuit; the wireless charging receiving function of the foregoing receiving circuit is in the off state, including: the foregoing one or The multiple first switches are in an off state; the wireless charging device is specifically configured to close the one or more first switches, open the modulation function of the ASK modulation circuit, and close the output switch based on the wireless charging demand.
  • the first switch when the first electronic device is charging the second electronic device, or when the first electronic device receives power from the second electronic device, the first switch is turned off, so that the first electronic device is receiving wireless When charging or charging other electronic devices in reverse, the loss of the wireless charging device is small enough that it will not cause FOD protection and will not cause ASK communication conflicts. Moreover, when the wireless charging device determines that it has a wireless charging requirement, the first switch and the modulation function and output switch of the ASK modulation circuit are turned on, so that the first electronic device can charge the wireless charging device.
  • the foregoing first switch is an active switch or a passive switch.
  • the first switch can be a pair of back-to-back MOSFETs or active devices such as electromagnetic relays, or passive devices such as buttons and reed switches.
  • the foregoing wireless charging device is further configured to determine that the wireless charging device has a wireless charging requirement according to an instruction input by a user or detection information of a sensor. Based on this solution, the wireless charging device can determine that it has a wireless charging requirement according to the instruction input by the user or the detection information of the sensor.
  • the foregoing method further includes: charging the wireless charging device is further configured to send to the first electronic device when the wireless charging device is fully charged
  • the second information is used to indicate the completion of charging of the wireless charging device; the charging of the wireless charging device is also used to turn off the first switch when the charging of the wireless charging device is completed.
  • the second information indicating that the charging is completed can be sent to the first electronic device, so that the first electronic device turns off its transmitting function; the wireless charging device can also, when its charging is completed, Turn off the first switch by itself, so that when the first electronic device does not correctly receive the data sent from the receiving end device within the preset time period, the transmitting function is turned off.
  • the receiving circuit further includes a Bluetooth module, when the first electronic device charges the second electronic device, or the first electronic device receives power from the second electronic device, the receiving circuit
  • the wireless charging receiving function is in the off state; the wireless charging device is also used to pair with the first electronic device through the Bluetooth module; the wireless charging device is also used to pair and connect the Bluetooth module and the first electronic device successfully
  • the first instruction from the first electronic device is received through the Bluetooth module, and the wireless charging receiving function of the receiving circuit is turned on through the Bluetooth module; the first instruction is used to instruct to turn on the wireless charging receiving function of the receiving circuit.
  • the wireless charging receiving function of the wireless charging device will be turned on only when the pairing connection between the first electronic device and the Bluetooth module of the wireless charging device is successful.
  • the wireless charging receiving function of the receiving circuit is turned off. Therefore, the receiving circuit of the wireless charging device will not Output current to the load, so that the wireless charging device will not cause the FOD protection to malfunction.
  • the area of no magnetic material or magnetic material on the receiving coil of the wireless charging device is smaller than the preset threshold, the electromagnetic field between the first electronic device and the second electronic device can pass through the wireless charging device to realize the penetration of the first electronic device.
  • the second electronic device is charged by the wireless charging device, or the first electronic device can receive power from the second electronic device through the wireless charging device. It is understandable that the receiving circuit of the wireless charging device in this solution does not include the ASK modulation circuit. Therefore, when the first electronic device charges the second electronic device, or the first electronic device receives power from the second electronic device , There will be no ASK communication conflict between the wireless charging device and the second electronic device.
  • the above-mentioned receiving circuit further includes a rectifier circuit and a second switch; one end of the second switch is connected to the output terminal of the above-mentioned rectifier circuit, and the second The other end of the switch is used to connect a load; the wireless charging receiving function of the receiving circuit is in an off state, including: the second switch is in an off state; the wireless charging device is specifically configured to close the second switch through the Bluetooth module.
  • the wireless charging device when the first electronic device charges the second electronic device, or when the first electronic device receives power from the second electronic device, since the first switch of the wireless charging device is in the off state, the wireless charging device The receiving circuit will not output current to the load, and will not cause FOD protection and ASK communication conflict. Only when the pairing connection between the first electronic device and the Bluetooth module of the wireless charging device is successful, the first switch is closed to realize the wireless charging of the wireless charging device by the first electronic device. It is understandable that this solution can not only enable the first electronic device to charge the wireless charging device, but also when the first electronic device charges the second electronic device, or when the first electronic device receives power from the second electronic device. The wireless power is transparently transmitted, so that the first electronic device does not need to remove the wireless charging device from the first electronic device, so that the first electronic device can receive the wireless charging in the forward direction or charge other electronic devices in the reverse direction.
  • the self-resonance frequency of the wireless charging device is greater than that of the first electronic device charging the second electronic device, or the first electronic device The maximum operating frequency when receiving power from the above-mentioned second electronic device. Based on this solution, the transmission efficiency of wireless charging from the first electronic device to the second electronic device can be improved, and the transmission distance and offset capability can be increased.
  • the wireless charging device is also used to send a Bluetooth media access control MAC address to the first electronic device; the wireless charging device is also used to receive The Wi-Fi WIFI key or Bluetooth MAC address from the first electronic device is paired and connected; the wireless charging device is also used to receive an operation instruction from the first electronic device, and perform operations corresponding to the operation instruction.
  • the wireless charging device is also used to send a Bluetooth media access control MAC address to the first electronic device; the wireless charging device is also used to receive The Wi-Fi WIFI key or Bluetooth MAC address from the first electronic device is paired and connected; the wireless charging device is also used to receive an operation instruction from the first electronic device, and perform operations corresponding to the operation instruction.
  • a wireless charging method is provided, which is applied to a wireless charging system.
  • the wireless charging system includes a first electronic device, a wireless charging device, and a second electronic device.
  • the wireless charging device is located in the first electronic device.
  • the wireless charging device includes a receiving circuit and a housing, and the receiving circuit includes a receiving circuit.
  • the receiving coil is located inside the housing; the above method includes: the first electronic device charges the second electronic device through the wireless charging device; or, the first electronic device receives data from the wireless charging device through the wireless charging device. The electrical energy of the above-mentioned second electronic device.
  • the first electronic device charges the second electronic device or receives power from the second electronic device
  • the first electronic device and the second electronic device The electromagnetic field between the devices penetrates the above-mentioned wireless charging device.
  • the wireless charging receiving function of the receiving circuit is turned off
  • the above method further includes: the wireless charging device determines that it has a wireless charging requirement; the wireless charging device turns on the wireless charging receiving function of the receiving circuit based on the wireless charging requirement.
  • the above-mentioned receiving circuit further includes an output switch and an amplitude keying ASK modulation circuit, and the wireless charging receiving function of the above-mentioned receiving circuit is in the off state, including: The output switch is in the off state, and the modulation function of the ASK modulation circuit is in the off state; the wireless charging device turning on the wireless charging receiving function of the receiving circuit includes: the wireless charging device turning on the modulation function of the ASK modulation circuit, and Close the above output switch.
  • the wireless charging device determining that it has a wireless charging requirement includes: the wireless charging device determines according to the instruction input by the user or the detection information of the sensor The wireless charging device has a wireless charging requirement; or, the wireless charging device receives first information from the first electronic device, and determines that the wireless charging device has a wireless charging requirement based on the first information; the first information is used to indicate The above-mentioned wireless charging devices have wireless charging requirements.
  • the foregoing method further includes: the wireless charging device sends second information to the first electronic device when the wireless charging device is fully charged, The second information is used to indicate that the wireless charging device is fully charged; or, when the wireless charging device is fully charged, the wireless charging device turns off the modulation function of the ASK modulation circuit and turns off the output switch.
  • the foregoing receiving circuit further includes one or more first switches, a matching circuit, and a rectifier circuit, and both ends of the foregoing receiving coil are connected to the foregoing matching circuit.
  • the output terminal of the matching circuit is connected to the input terminal of the rectifier circuit, and the position of the one or more first switches includes: the position between the receiving coil and the matching circuit, or, the matching circuit and One or more of the positions between the input terminals of the above-mentioned rectifier circuit.
  • the foregoing receiving circuit further includes an output switch and an ASK modulation circuit, and the wireless charging receiving function of the foregoing receiving circuit is in an off state, including: the foregoing one or The plurality of first switches are in an off state; the wireless charging device turning on the wireless charging receiving function of the receiving circuit includes: the wireless charging device closes the one or more first switches, turning on the modulation function of the ASK modulation circuit, and Close the above output switch.
  • the foregoing first switch is an active switch or a passive switch.
  • the wireless charging device determining that it has a wireless charging requirement includes: the wireless charging device determines according to the instruction input by the user or the detection information of the sensor
  • the wireless charging device determines according to the instruction input by the user or the detection information of the sensor
  • the foregoing method further includes: when the wireless charging device is charged, the wireless charging device sends second information to the first electronic device.
  • the above-mentioned second information is used to indicate that the charging of the above-mentioned wireless charging device is completed; or, when the charging of the above-mentioned wireless charging device is completed, the above-mentioned first switch is turned off.
  • the receiving circuit further includes a Bluetooth module, and there is no magnetic material between the receiving coil and the inner side of the housing, or the receiving coil and the The area of the magnetic material between the inner sides of the housing is less than a preset threshold; when the first electronic device charges the second electronic device, or the first electronic device receives power from the second electronic device, the receiving circuit
  • the wireless charging receiving function is turned off; the above method further includes: the wireless charging device is paired with the first electronic device through the Bluetooth module; the wireless charging device is successfully paired and connected with the Bluetooth module and the first electronic device
  • the first instruction from the first electronic device is received through the Bluetooth module, and the wireless charging receiving function of the receiving circuit is turned on through the Bluetooth module; the first instruction is used to instruct to turn on the wireless charging receiving function of the receiving circuit.
  • the foregoing receiving circuit further includes a rectifier circuit and a second switch; one end of the second switch is connected to the output terminal of the foregoing rectifier circuit, and the second The other end of the switch is used to connect the load; the wireless charging receiving function of the receiving circuit is in the off state, including: the second switch is in the off state; the wireless charging device turns on the wireless charging receiving function of the receiving circuit through the Bluetooth module, The method includes: the wireless charging device closes the second switch through the Bluetooth module.
  • the self-resonance frequency of the wireless charging device is greater than that of the first electronic device charging the second electronic device, or the first electronic device The maximum operating frequency when receiving power from the above-mentioned second electronic device.
  • a wireless charging method includes: a first electronic device determines that a wireless charging device has a wireless charging requirement, and the first electronic device does not detect the second electronic device;
  • the charging device is an accessory device of the first electronic device and is physically connected to the first electronic device.
  • the wireless charging device includes a receiving circuit and a housing, the receiving circuit includes a receiving coil, and the receiving coil is located inside the housing;
  • the electronic device sends first information to the wireless charging device; the first information is used to instruct the wireless charging device to turn on the wireless charging receiving function of the receiving circuit of the wireless charging device.
  • the first electronic device is added to determine the wireless charging requirements of the wireless charging device, and the first electronic device determines that the wireless charging device has wireless charging requirements, and the first electronic device does not detect other electronic devices ,
  • the first information is sent to the wireless charging device, and the wireless charging device turns on the wireless charging receiving function of its receiving circuit after receiving the first information, thereby avoiding the problem of the wireless charging interruption caused by the forcible joining of the wireless charging device.
  • the first electronic device determining that the wireless charging device has a wireless charging requirement includes: the first electronic device determines the wireless charging device according to the instruction input by the user or the detection information of the touch sensor.
  • the charging equipment has wireless charging requirements. Based on this solution, the first electronic device can determine that the wireless charging device has a wireless charging requirement according to the instruction input by the user or the detection information of the transmitter.
  • the foregoing method further includes: the first electronic device receives second information from the wireless charging device, and based on the second information, the second information An electronic device suspends its wireless charging and transmitting function, and the second information is used to indicate the completion of the charging of the wireless charging device; or, when the first electronic device does not correctly receive the data sent from the receiving end device within a preset period of time, The first electronic device suspends its wireless charging and transmitting function; the receiving end device includes the above-mentioned wireless charging device.
  • the first electronic device After the first electronic device receives the second information indicating that the wireless charging device is fully charged, it turns off the wireless charging and transmitting function of the first electronic device, and the first electronic device may also not correctly receive the data from the receiver within the preset time.
  • the end device sends data, its wireless charging and transmitting function is turned off, thereby avoiding unnecessary power loss on the first electronic device and possible damage.
  • an electronic device is provided, the electronic device is a first electronic device, and the first electronic device includes: a controller for determining that the wireless charging device has a wireless charging requirement, and the wireless charging device is not detected The second electronic device; the wireless charging device is an accessory device of the first electronic device and is physically connected to the first electronic device, the wireless charging device includes a receiving circuit and a housing, the receiving circuit includes a receiving coil, the receiving coil is located in the above Inside the housing; the controller is used to send first information to the wireless charging device through FSK modulation; the first information is used to instruct the wireless charging device to turn on the wireless charging receiving function of the receiving circuit of the wireless charging device.
  • the above-mentioned controller is specifically configured to determine that the wireless charging device has a wireless charging requirement according to an instruction input by a user or detection information of a sensor.
  • the above-mentioned first electronic device further includes an ASK demodulation circuit
  • the above-mentioned controller is further configured to receive data from the above-mentioned wireless network through the ASK demodulation circuit.
  • the second information of the charging device is used to indicate the completion of charging of the wireless charging device; the above-mentioned controller is also used to turn off the wireless charging and transmitting function of the first electronic device based on the second information; the above-mentioned controller also When the data sent from the receiving end device is not correctly received within the preset time period, the controller turns off the wireless charging and transmitting function of the first electronic device; the receiving end device includes the above-mentioned wireless charging device.
  • a computer-readable storage medium stores computer program code, and when the computer program code runs on a processor, the processor The wireless charging method described in any one of the above aspects is executed.
  • a computer program product stores computer software instructions executed by the above-mentioned processor, and the computer software instructions include a method for executing the wireless charging method of any one of the above-mentioned aspects. .
  • the seventh aspect of the embodiments of the present application provides a device that exists in the form of a chip product.
  • the structure of the device includes a processor and a memory.
  • the memory is used to couple with the processor and store the necessary programs of the device. Instructions and data, the processor is used to execute the program instructions stored in the memory, so that the device executes the wireless charging method described in any of the above aspects.
  • FIG. 1 is a schematic structural diagram of a wireless charging system provided by an embodiment of the application
  • FIG. 2 is a schematic diagram of a wireless charging scenario provided by an embodiment of the application
  • FIG. 3 is a schematic diagram of an application scenario of a wireless charging method provided by an embodiment of the application.
  • FIG. 4 is a schematic diagram of coil stacking in a wireless charging scenario provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of coil stacking in another wireless charging scenario provided by an embodiment of the application.
  • FIG. 6 is a schematic structural diagram of a coil in a wireless charging scenario provided by an embodiment of the application.
  • FIG. 7 is a schematic flowchart of a wireless charging method provided by an embodiment of this application.
  • FIG. 8 is a schematic structural diagram of a wireless charging system provided by an embodiment of the application.
  • FIG. 8a is a schematic structural diagram of another wireless charging system provided by an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of another wireless charging system provided by an embodiment of the application.
  • FIG. 10 is a schematic structural diagram of another wireless charging system provided by an embodiment of this application.
  • FIG. 11 is a schematic flowchart of another wireless charging method provided by an embodiment of this application.
  • FIG. 12 is a schematic flowchart of another wireless charging method provided by an embodiment of this application.
  • FIG. 13 is a schematic flowchart of another wireless charging method provided by an embodiment of this application.
  • FIG. 14 is a schematic flowchart of another wireless charging method provided by an embodiment of the application.
  • FIG. 15 is a schematic structural diagram of a wireless charging device provided by an embodiment of the application.
  • FIG. 16 is a schematic flowchart of another wireless charging method provided by an embodiment of this application.
  • FIG. 17 is a schematic structural diagram of another wireless charging system provided by an embodiment of the application.
  • FIG. 18 is a schematic flowchart of another wireless charging method provided by an embodiment of this application.
  • FIG. 19 is a schematic flowchart of another wireless charging method provided by an embodiment of this application.
  • FIG. 21 is a schematic diagram of the composition of a wireless charging receiving circuit provided by an embodiment of the application.
  • At least one of a, b, or c can mean: a, b, c, a and b, a and c, b and c or a and b and c, where a, b and c can be It can be single or multiple.
  • Foreign Object Detection refers to a metal foreign object placed in the middle of the coil during the wireless charging process, which will generate eddy current and cause the metal foreign object to heat up.
  • Foreign body detection can be judged by the method of power difference. When the difference between the power of the transmitting end and the power of the receiving end is large, it can be determined that there is a metal foreign body. When a metal foreign body is detected, FOD protection can be used to prevent the metal foreign body from becoming hot during the wireless charging process and causing damage to the wireless charging receiver and transmitter. For example, FOD protection can calculate the power difference between the transmitting end and the receiving end. When the difference exceeds a certain threshold (for example, 350mW), the transmitting end will suspend wireless charging and transmission to prevent overheating on metal foreign objects.
  • a certain threshold for example, 350mW
  • Amplitude Shift Keying (ASK) communication conflict means that in a wireless communication system, when multiple receiving ends transmit data to one transmitting end in ASK mode, the data superimposes between the multiple receiving ends, causing the transmitting end to fail Effectively read the data at the receiving end.
  • ASK Amplitude Shift Keying
  • the wireless charging system includes a power supply 110, a transmitting end device 120, and a receiving end device 130.
  • the transmitting end device 120 includes a transmitting circuit
  • the receiving end device 130 includes a receiving circuit.
  • the power supply 110 is used to provide electrical energy for the transmitting circuit in the transmitting end device 120.
  • the transmitting circuit of the transmitting end device 120 generates a high-frequency alternating magnetic field.
  • the receiving circuit in the receiving end device 130 senses the alternating magnetic field and transfers the magnetic energy. It is converted into electrical energy and provided to the load 140.
  • the power supply 110 is generally provided by a battery or DC power obtained by rectification of AC mains.
  • the load 140 may be a charging control chip of the receiving end device 130 to control electric energy to charge the battery or supply power to the system.
  • the transmitting circuit in the transmitting end device 120 may include a controller 121, an ASK demodulation circuit 122, an inverter circuit 123, a matching circuit 124 and a coil 125.
  • the inverter circuit 123 is used to convert the DC power provided by the power supply 110 into AC power, and provide it to the matching circuit 124 and the coil 125.
  • the controller 121 executes algorithms and protocols related to wireless power transmission to provide drive signals and frequency shift keying (Frequency Shift Keying, FSK) modulated communication signals to the inverter circuit 123, and read from the ASK demodulation circuit 122. Communication information sent from the end device.
  • FSK Frequency Shift Keying
  • the receiving circuit in the receiving device 130 may include a controller 131, an ASK modulation circuit 132, a rectification circuit 133, a matching circuit 134, a receiving coil 135, an FSK demodulation circuit 136, and an output switch 137.
  • the alternating magnetic field generated by the coil 125 in the transmitting circuit is induced on the receiving coil 135 to generate an alternating current, which is compensated by the matching circuit 134 to improve the transmission power and efficiency of the wireless charging system.
  • the rectifier circuit 133 converts the AC electric energy into DC electric energy, and provides it to the load 140 after passing through the output switch 137.
  • the controller 131 executes algorithms and protocols related to wireless power transmission, reads the rectified voltage information, controls the output switch 137 to close or close, reads the information from the transmitter device from the FSK demodulation circuit 136, and sends the data to ASK modulation circuit 132.
  • the receiving circuit and the transmitting circuit in the wireless charging system shown in FIG. 1 may include more or less circuit modules than those shown in FIG.
  • the circuit structure and the specific circuit structure of the receiving circuit in the receiving end device are not limited, and FIG. 1 is only an exemplary illustration.
  • Fig. 2 is a schematic diagram of coil stacking when the wireless charging system shown in Fig. 1 performs wireless charging.
  • the electronic device 210 in FIG. 2 may be the transmitting end device in FIG. 1, and the electronic device 220 may be the receiving end device in FIG. 1.
  • the electronic device 210 includes a coil 211 and a magnetic material 212.
  • the coil 211 is located on the inner side of the housing of the electronic device 210 and is set close to one side of the electronic device 220, and the magnetic material 212 is set on the other side of the coil 211.
  • the electronic device 220 includes a receiving coil 221 and a magnetic material 222.
  • the receiving coil 221 is located on the inner side of the housing of the electronic device 220 and is disposed close to one side of the electronic device 210, and the magnetic material 222 is disposed on the other side of the receiving coil 221.
  • the housing of the electronic device in the coil area is usually a non-conductive and/or non-magnetic material.
  • the above-mentioned magnetic material may be a magnetic shielding sheet.
  • the coil 211 and the receiving coil 221 may be planar coils, which are usually wound by a single strand or multiple strands of wire, or by a flexible printed circuit board (Flexible Printed Circuit, FPC)/printed circuit board (Printed Circuit Board, PCB). )
  • the printed conductive pattern is generally circular or rectangular.
  • the magnetic materials 212 and 222 can be high permeability materials, such as ferrite and nanocrystals, and their size usually covers the area of the coil to shield the magnetic field from interfering with other circuits in the electronic device or to prevent the magnetic field from generating eddy currents on the metal And cause fever.
  • the electronic device 210 and the electronic device 220 are aligned with the centers of the two coils as coordinates. Generally, the distance between the coil 211 and the coil 221 is within 8 mm, and the horizontal offset is within 12 mm, and wireless charging can still be performed.
  • Fig. 3 is a schematic diagram of an application scenario of wireless charging.
  • accessory devices supporting wireless charging are worn on the transmitting end device, for example, accessory devices such as a Bluetooth keyboard and a smart leather case.
  • the tablet computer is wearing an accessory device.
  • the accessory device is a Bluetooth keyboard.
  • the tablet computer can wirelessly charge the Bluetooth keyboard.
  • the tablet computer is the transmitter device in Figure 1, Bluetooth
  • the keyboard is the receiving end device in Figure 1.
  • the wireless charging transmitter function of the tablet computer When the wireless charging transmitter function of the tablet computer is turned on, if the user wants the tablet computer to charge other electronic devices (such as mobile phones), as shown in Figure 3 (b), when the user puts the phone on the tablet When on the computer (the coil of the Bluetooth keyboard is located between the coil of the tablet computer and the coil of the mobile phone), if there is a magnetic material on the coil of the Bluetooth keyboard, as shown in Figure 3 (c), the coil of the tablet computer and the coil of the Bluetooth keyboard Electromagnetic induction occurs between the coils, and the tablet computer can be used to charge the Bluetooth keyboard. Due to the magnetic material on the coil of the Bluetooth keyboard, the wireless energy emitted by the tablet computer will be between the coil of the tablet computer and the coil of the Bluetooth keyboard.
  • the wireless energy emitted by the tablet computer will be between the coil of the tablet computer and the coil of the Bluetooth keyboard.
  • the coil of the mobile phone cannot sense the wireless energy emitted by the coil of the tablet computer. With the Bluetooth keyboard removed, the tablet cannot be charged to the phone. If there is no magnetic material on the coil of the Bluetooth keyboard, as shown in Figure 3 (d), the wireless energy emitted by the coil of the tablet computer will be transmitted to the coil of the mobile phone through the coil of the Bluetooth keyboard, that is, the coil of the Bluetooth keyboard and the coil of the mobile phone. Electric energy can be sensed.
  • the Bluetooth keyboard and mobile phone send data to the tablet through the ASK method, the data sent by the Bluetooth keyboard and the mobile phone will be superimposed, causing the tablet to be unable to effectively read the data sent by the Bluetooth keyboard and mobile phone.
  • ASK communication conflict occurs between the Bluetooth keyboard and the mobile phone, and the tablet computer will suspend its wireless transmission function.
  • the Bluetooth keyboard and mobile phone both receive the wireless power emitted by the tablet computer, it will cause FOD protection, and the tablet computer will stop the wireless charging transmission function. Therefore, when a Bluetooth keyboard is worn on a tablet computer, the Bluetooth keyboard needs to be detached from the tablet computer before the tablet computer can charge the phone or receive wireless power from other electronic devices.
  • the electronic device wears a smart accessory with a wireless charging function, only after the smart accessory is removed, the electronic device can receive wireless power from other electronic devices or transmit wireless power to other electronic devices.
  • removing smart accessories is often very inconvenient, and the user experience is poor.
  • an embodiment of the present application provides a wireless charging system that can be used when the wireless charging transmitter is replaced.
  • the end device or the receiving end device there is no need to remove the smart accessories, which improves the user experience.
  • the wireless charging system includes a first electronic device, a wireless charging device, and a second electronic device.
  • the wireless charging device is located between the first electronic device and the second electronic device.
  • the device is an accessory device of the first electronic device and is physically connected to the first electronic device.
  • the wireless charging device includes a receiving circuit and a housing, and the receiving circuit includes a receiving coil, and the receiving coil is located inside the housing of the wireless charging device.
  • the vertical distance between the receiving coil of the wireless charging device and the coil of the first electronic device is less than or equal to the first threshold (for example, 8mm), and the horizontal offset is less than or equal to the second threshold (for example, 12mm), To ensure that the receiving coil of the wireless charging device can sense the wireless power emitted by the coil of the first electronic device.
  • the first threshold for example, 8mm
  • the second threshold for example, 12mm
  • the first electronic device and the second electronic device may be a mobile phone, a smart phone, a tablet computer, a desktop, a laptop, a handheld computer, a notebook computer, a personal digital assistant (personal digital assistant, PDA), and a mobile phone.
  • the above-mentioned wireless charging device is an accessory device of the first electronic device and is physically connected to the first electronic device to provide the first electronic device with more extended functions.
  • the wireless charging device has an application circuit that needs to consume power.
  • the wireless charging device may be an accessory device such as a Bluetooth keyboard and a smart protective cover that are used in conjunction with the first electronic device.
  • the embodiments of the present application do not impose special restrictions on the specific forms of the first electronic device, the second electronic device, and the wireless charging device.
  • the above-mentioned first electronic device is used for charging a wireless charging device, used for charging a second electronic device through the wireless charging device, and used for receiving electric energy from the second electronic device through the wireless charging device. It is understandable that when the first electronic device is charging the wireless charging device, the second electronic device is far away from the first electronic device, and the second electronic device is insufficient to sense the wireless energy emitted by the first electronic device.
  • the wireless charging device is not charging, and the first electronic device can charge the second electronic device through the wireless charging device. Charging, or, the first electronic device can receive power from the second electronic device through a wireless charging device.
  • the coil of the first electronic device and the coil of the second electronic device are less than or equal to the first threshold (for example, 8mm), and the horizontal offset is less than or equal to the second threshold (for example, 12mm) to ensure that the coil of the second electronic device can sense the coil emission of the first electronic device Wireless power.
  • the electromagnetic field between the first electronic device and the second electronic device can penetrate the wireless charging device.
  • the receiving coil of the above-mentioned wireless charging device is used to induce an external magnetic field to generate an induced current.
  • the casing of the wireless charging device may include a casing of the wireless charging device close to the side of the first electronic device, and/or a casing of the wireless charging device far away from the side of the first electronic device.
  • the casing of the wireless charging device is made of non-conductive and/or non-magnetic material.
  • the area of the magnetic material between the receiving coil and the inner side of the casing of the wireless charging device is smaller than a preset threshold.
  • the preset threshold can enable the electromagnetic field between the first electronic device and the second electronic device to penetrate the wireless charging device, and the electric energy from the first electronic device received by the second electronic device can enable the second electronic device to be charged normally, In addition, the electric energy from the second electronic device received by the first electronic device can also cause the first electronic device to be charged normally. That is, when the area of the magnetic material between the receiving coil and the inner side of the casing of the wireless charging device is less than the preset threshold, the electromagnetic field between the first electronic device and the second electronic device is large enough to realize the first electronic device through the wireless charging device.
  • the wireless charging between an electronic device and a second electronic device is normally performed.
  • the embodiment of the application does not limit the specific value of the preset threshold, as long as the area of the magnetic material is less than the preset threshold, the electromagnetic field between the first electronic device and the second electronic device can penetrate the wireless charging device , And it can be charged normally.
  • the receiving coil of the wireless charging device is an air-core coil, and there is no magnetic material on the air-core coil.
  • FIG. 4 is a schematic diagram of coil stacking when the wireless charging system shown in FIG. 1 performs wireless charging.
  • the first electronic device 2100 in FIG. 4 is a transmitting terminal device, and the wireless charging device 2200 is an accessory device of the first electronic device 2100 and is physically connected to the first electronic device 2100.
  • the first electronic device 2100 includes a coil 2101 and a magnetic material 2102, and the wireless charging device 2200 includes a receiving coil 2201.
  • the coil 2101 of the first electronic device 2100 has a magnetic material 2102
  • the receiving coil 2201 of the wireless charging device 2200 has no magnetic material.
  • the alternating magnetic field generated by the coil 2101 can be induced by the receiving coil 2201, and the receiving circuit in the wireless charging device 2200 can convert the magnetic energy induced by the receiving coil 2201 into electrical energy , To achieve power supply for the load of the wireless charging device 2200 or charging the battery of the wireless charging device 2200.
  • the first electronic device charges the second electronic device, or the first electronic device receives electric energy from the second electronic device (that is, the second electronic device charges the first electronic device).
  • the wireless charging receiving function of the receiving circuit of the wireless charging device is turned off.
  • the modulation function of the ASK modulation circuit in the receiving circuit of the wireless charging device is turned off, and the output switch is turned off Open state.
  • the wireless charging system includes a first electronic device 2100, a wireless charging device 2200, and a second electronic device 2300.
  • the wireless charging device 2200 is an accessory device of the first electronic device 2100 and is physically connected to the first electronic device 2100.
  • the coil 2101 of the first electronic device 2100 has a magnetic material 2102 on it
  • the coil 2201 of the wireless charging device 2200 has no magnetic material on it
  • the coil 2301 of the second electronic device 2300 has a magnetic material 2302 on it.
  • the first electronic device 2100 is a tablet computer
  • the wireless charging device 2200 is a Bluetooth keyboard that is worn on the tablet computer and has a wireless charging function
  • the second electronic device 2300 is a mobile phone
  • the wireless power emitted by the coil 2101 of the first electronic device 2100 (tablet computer) can be transparently transmitted to the second electronic device 2300 (mobile phone) through the coil 2201 of the wireless charging device 2200 (Bluetooth keyboard).
  • the coil 2301 of the (mobile phone) can sense the wireless energy, and the magnetic energy induced by the coil 2301 can be converted into electrical energy through the receiving circuit in the second electronic device 2300 (mobile phone). That is, the electromagnetic field between the first electronic device 2100 (tablet computer) and the second electronic device 2300 (mobile phone) can penetrate the second electronic device 2300 (mobile phone) of the wireless charging device.
  • the first electronic device 2100 (tablet computer) is charging the second electronic device 2300 (mobile phone)
  • the output switch in the receiving circuit of the wireless charging device 2200 (Bluetooth keyboard) is in the off state, therefore, the first electronic device 2100 (Tablet PC)
  • the loss of the wireless charging device 2200 (Bluetooth keyboard) is extremely small, which will not cause foreign object detection FOD protection.
  • the modulation function of the ASK modulation circuit in the receiving circuit of the wireless charging device 2200 (Bluetooth keyboard) is turned off, the wireless charging device 2200 (Bluetooth keyboard) will not conflict with the second electronic device 2300 (mobile phone) in ASK communication. .
  • the first electronic device 2100 can wirelessly charge the second electronic device 2300 (mobile phone). That is, the first electronic device can charge the second electronic device through the wireless charging device. Correspondingly, the first electronic device can also receive power from the second electronic device through the wireless charging device.
  • Fig. 6 is a schematic structural diagram of a coil provided by an embodiment of the application.
  • the wireless energy emitted by the coil 2101 of the first electronic device 2100 can be transmitted to the second electronic device through the coil 2201 of the wireless charging device 2200.
  • the coil 2301 of the device 2300 since the first electronic device 2100 charges the second electronic device 2300, the wireless charging receiving function of the receiving circuit of the wireless charging device is turned off. Therefore, it is possible to wear an accessory device with a wireless charging function (wireless charging) on the first electronic device 2100.
  • the first electronic device 2100 charges the second electronic device 2300 through the wireless charging device 2200, or the first electronic device 2100 receives the radio from the second electronic device 2300 through the wireless charging device 2200 It can be charged without causing FOD protection or ASK communication conflict.
  • the wireless charging method is applied to a wireless charging system.
  • the wireless charging system includes a first electronic device, a wireless charging device, and a first electronic device. Two electronic devices, the wireless charging device is located between the first electronic device and the second electronic device, wherein the wireless charging device is an accessory device of the first electronic device and is physically connected to the first electronic device, and the wireless charging device includes a receiving circuit and a housing , The receiving circuit includes a receiving coil, the receiving coil is located inside the housing, and there is no magnetic material on the receiving coil.
  • the wireless charging device may be the wireless charging device 2200 shown in FIGS. 4 to 6 above. When the first electronic device charges the second electronic device, or the second electronic device charges the first electronic device, the wireless charging device receives The wireless charging receiving function of the circuit is in the off state, and the method may include steps S701-S702.
  • the wireless charging device determines that it has a wireless charging requirement.
  • determining that the wireless charging device has a wireless charging requirement may include: the wireless charging device determines that the wireless charging device has a wireless charging requirement according to an instruction input by a user or detection information of a sensor.
  • the instruction input by the user may be an instruction given by the user through a physical button, or an operation instruction such as setting on an application (App) of the wireless charging device.
  • the aforementioned sensor may be a Hall sensor, an optical sensor, or other sensors.
  • a Hall sensor can be added to the side of the tablet computer to fit the Bluetooth keyboard. When the sensor detects that the Bluetooth keyboard is in the bracket mode, it is determined that the Bluetooth keyboard has a wireless charging requirement.
  • determining that the wireless charging device has a wireless charging requirement may further include: the wireless charging device receives first information from the first electronic device, and determining that the wireless charging device has a wireless charging requirement based on the first information.
  • the first information may be agreed protocol data, which is used to indicate that the wireless charging device has a wireless charging requirement.
  • the first electronic device first determines that the wireless charging device has a wireless charging requirement, and when the first electronic device does not detect other electronic devices, the first electronic device wirelessly charges The device sends the agreed protocol data to instruct the wireless charging device to turn on the wireless charging receiving function of its receiving circuit.
  • the embodiment of the present application does not limit the specific method for the wireless charging device to determine that it has a wireless charging requirement, and it is only an exemplary description here.
  • the wireless charging system shown in FIG. 8 includes a first electronic device 3100, a wireless charging device 3200, and a second electronic device 3300.
  • the wireless charging device 3200 is located in the first electronic device 3100 and the second electronic device 3100. Between the two electronic devices 3300, the wireless charging device 3200 is an accessory device of the first electronic device 3100 and is physically connected to the first electronic device 3100. There is no magnetic material on the coil 3215 of the wireless charging device 3200.
  • the receiving circuit 3210 of the wireless charging device 3200 includes an ASK modulation circuit 3212 and an output switch 3219. As shown in FIG. 8, the wireless charging receiving function of the receiving circuit of the wireless charging device is in the off state, including: the output switch 3219 of the wireless charging device 3200 in FIG. 8 is in the off state, and the modulation function of the ASK modulation circuit 3212 is in the off state. Disabled.
  • the wireless power emitted by the first electronic device 3100 can be transparently transmitted to the second electronic device through the coil 3215 of the wireless charging device 3200 3300's coil 3315.
  • the output switch 3219 of the wireless charging device 3200 is in the off state, and the modulation function of the ASK modulation circuit 3212 is in the off state.
  • the coil 3215 of the wireless charging device 3200 can sense wireless energy, since the output switch 3219 in the receiving circuit 3210 is in the off state, it will not output The current is supplied to the load, and only the controller 3211 and the rectifier circuit 3213 in the wireless charging device 3200 have small power consumption (less than 100 mW), which is not enough to cause FOD protection. Moreover, the modulation function of the ASK modulation circuit 3212 is in the off state, therefore, the wireless charging device 3200 will not conflict with the second electronic device 3300 in ASK communication.
  • the wireless energy emitted by the first electronic device can be transparently transmitted to the second electronic device through the coil of the second electronic device, and will not cause the FOD protection to malfunction. Or ASK communication conflict. That is, the first electronic device 3100 can charge the second electronic device 3300 through the wireless charging device 3200. Therefore, when the first electronic device 3100 performs wireless charging for the second electronic device 3300, the wireless charging device 3200 worn on the first electronic device 3100 does not need to be detached from the first electronic device, so that the first electronic device can be transparent. The second electronic device is charged via the wireless charging device, or the first electronic device receives power from the second electronic device through the wireless charging device.
  • the entire wireless The charging system can be equivalently simplified as shown in Figure 8a.
  • the transmitting circuit 3110 of the first electronic device 3100 can be equivalent to a high-frequency AC power supply Vs, a resonant capacitor C TX , a coil L TX and an equivalent resistance R TX on the flow path.
  • the receiving circuit 3310 of the second electronic device 3300 can be equivalent to the load R Load , the series resonant capacitor C S_RX , the series resonant capacitor C d_RX , the receiving coil L RX and the equivalent resistance R RX on the flow path.
  • the receiving circuit 3210 of the wireless charging device 3200 may be equivalent to the load R eq , the series resonant capacitor C S_CSR , the series resonant capacitor C d_CSR , the receiving coil L CSR and the equivalent resistance R CSR on the flow path.
  • M TX_RX is the mutual inductance between the coil L TX and the receiving coil L RX
  • M TX_CSR is the mutual inductance between the coil L TX and the receiving coil L CSR
  • M RX_CSR is the mutual inductance between the receiving coil L RX and the receiving coil L CSR .
  • the wireless charging receiving function of the receiving circuit 3210 of the wireless charging device 3200 is in the off state, so the resistance value of R eq is very large, and its impact on the wireless charging device 3200 can be ignored.
  • the receiving coil L CSR in the wireless charging device 3200 can function as a wireless charging relay, which can improve the transmission efficiency of wireless charging from the first electronic device 3100 to the second electronic device 3300.
  • L CSR , C S_CSR , and C d_CSR on the wireless charging device 3200 can select appropriate parameters to satisfy that f CSR is greater than the maximum operating frequency point f op_max when the first electronic device 3100 is wirelessly charged to the second electronic device 3300, so that Improve charging efficiency, increase transmission distance and offset capability.
  • the wireless charging system includes a first electronic device 4100, a wireless charging device 4200, and a second electronic device 4300.
  • the wireless charging device 4200 is located in the first electronic device 4100 and 4100. Between the second electronic devices 4300, the wireless charging device 4200 is an accessory device of the first electronic device 4100 and is physically connected to the first electronic device 4100. There is no magnetic material on the coil 4215 of the wireless charging device 4200.
  • the receiving circuit 4210 of the wireless charging device 4200 includes an ASK modulation circuit 4212 and an output switch 4219.
  • the receiving circuit 4210 also includes one or more first switches 4217, a matching circuit 4214, and a rectifier circuit 4213.
  • the one or more first switches 4217 may be arranged at a position between the coil 4215 and the matching circuit 4214, and/or at a position between the matching circuit 4214 and the input terminal of the rectifier circuit 4213. In FIG. 9, only the first switch is used as one, and the position of the first switch 4217 disposed between the input terminal of the matching circuit 4214 and the rectifier circuit 4213 is taken as an example for illustration. As shown in FIG. 9, the wireless charging receiving function of the receiving circuit of the wireless charging device is in the off state, including: the first switch 4217 in FIG. 9 is in the off state.
  • the wireless power emitted by the first electronic device 4100 can be transparently transmitted to the second electronic device through the coil 4215 of the wireless charging device 4200 4300's coil 4315.
  • the first switch 4217 of the wireless charging device 4200 is in an off state. Therefore, when the first electronic device 4100 is charging the second electronic device 4300, although the coil 3215 of the wireless charging device 4200 can sense wireless power, because the first switch 4217 in the receiving circuit 4210 is in the off state, the wireless charging The rectifier circuit 4213 of the device 4200 cannot receive power and cannot provide power to the load.
  • the power consumption on the receiving circuit 4210 of the wireless charging device 4200 is weak ( ⁇ 10mW), which will not cause the FOD protection to malfunction, so it does not affect the first The normal operation of the electronic device 4100.
  • the ASK adjustment circuit 4212 cannot turn on the ASK modulation function, so the wireless charging device 4200 will not conflict with the second electronic device 4300 in ASK communication.
  • the wireless energy emitted by the first electronic device 4100 can be transparently transmitted to the second electronic device 4300 through the coil 4215 of the wireless charging device 4200, and will not cause FOD Protection malfunction or ASK communication conflict.
  • the first electronic device 4100 can charge the second electronic device 4300 through the wireless charging device 4200. Therefore, when the first electronic device 4100 performs wireless charging for the second electronic device 4300, the wireless charging device 4200 worn on the first electronic device 4100 does not need to be detached from the first electronic device, and the first electronic device can be transparent.
  • the second electronic device is charged via the wireless charging device, or the first electronic device receives power from the second electronic device through the wireless charging device.
  • the difference between the implementation shown in FIG. 9 and the implementation shown in FIG. 8 is that the receiving circuit 4210 of the wireless charging device 4200 shown in FIG. 9 adds between the matching circuit 4212 and the rectified current 4213
  • the first switch when the first electronic device 4100 performs wireless charging for the second electronic device 4300, the first switch 4217 in the receiving circuit 4210 of the wireless charging device 4200 disconnects the coil 4215, so the loss of the wireless charging device 4200 Compared with the wireless charging device 3200 shown in FIG. 8, the loss is smaller, and it is less likely to cause the FOD protection to malfunction.
  • the first switch in FIG. 9 may be an active switch or a passive switch.
  • the first switch may be a pair of back-to-back MOSFETs, or active devices such as electromagnetic relays.
  • the first switch may also be a passive device such as a button or a reed switch.
  • the embodiment of the present application does not limit the specific form of the first switch.
  • the wireless charging device turns on the wireless charging receiving function of its receiving circuit based on the wireless charging requirement.
  • the wireless charging device determines that it has a wireless charging requirement
  • the wireless charging device turns on the wireless charging receiving function of its receiving circuit, receives wireless power from the first electronic device, and provides electrical energy to the load.
  • the wireless charging device when the wireless charging device determines that it has a wireless charging requirement in step S701, the wireless charging device turns on the wireless charging receiving function of its receiving circuit, including: a controller 3211 and/or The AP 3230 receives the command, turns on the modulation function of the ASK modulation circuit 3212, and closes the output switch 3219 to provide power to the load 3220.
  • the wireless charging receiving function of its receiving circuit including: a controller 3211 and/or The AP 3230 receives the command, turns on the modulation function of the ASK modulation circuit 3212, and closes the output switch 3219 to provide power to the load 3220.
  • the controller 3211 and/or the AP 3230 of the second electronic device enable the modulation function of the ASK modulation circuit 3212, and return configuration information Waiting for the data to the first electronic device 3100, the controller 3211 and/or AP 3230 closes the output switch 3219, and outputs electric energy to the load 3220.
  • the wireless charging device 3200 has a battery or other energy storage device (such as a super capacitor), before the output switch 3219 of the wireless charging device 3200 is closed, the AP3230 can be powered by the battery or other energy storage device to control
  • the device 3211 is powered by the output of the rectifier circuit 3213. Therefore, the above-mentioned wireless charging requirements can be passed to the controller 3211 and/or AP 3230.
  • the controller 3211 and/or AP 3230 activates the modulation function of the ASK modulation circuit 3212 and closes the output switch 3219 .
  • the AP3230 cannot work because there is no power supply, and the controller 3211 can supply power from the output of the rectifier circuit 3213. Therefore, the aforementioned wireless charging requirements can be passed to the controller 3211, and the controller 3211 turns on the modulation function of the ASK modulation circuit 3212 and closes the output switch 3219.
  • the wireless charging device when the wireless charging device determines that it has a wireless charging requirement in step S701, the wireless charging device turns on the wireless charging receiving function of its receiving circuit, including: closing the first switch 4217 , The modulation function of the ASK modulation circuit 4212 is turned on, and the output switch 4219 is closed to provide electrical energy to the load 4220.
  • the first switch 4217 when the first switch 4217 is a button, closing the first switch can be achieved by pressing the button of the first switch 4217 by the user.
  • the first switch 4217 is a reed switch
  • the reed switch can be triggered to be turned on by a magnet close to the first electronic device or other devices that generate a certain magnetic field strength.
  • the first switch 4217 when the first switch 4217 is an active device, and the power supply of the driving circuit of the first switch 4217 is provided by the internal battery or other energy storage device of the wireless charging device 4200, the first switch 4217 can directly receive the user
  • the state of the first switch 4217 is controlled by the input command or the detection information of the sensor.
  • the first switch 4217 may also be transmitted to the AP4230 by user requirements, and the state of the first switch 4217 may be controlled by the AP4230. If the wireless charging device 4200 has no internal battery or other energy storage device, or the internal battery or other energy storage device of the wireless charging device 4200 is too low, the driving circuit of the first switch 4217 will not be turned on due to loss of power supply. As a result, the wireless charging receiving function of the receiving circuit 4210 cannot be turned on. Therefore, in order to avoid this situation, the driving circuit of the first switch 4217 may be supplied by the coil 4215 after being rectified by a single rectifier circuit into DC power.
  • the first switch includes a first power switch and a second power switch
  • the first power switch and the second power switch are respectively controlled by two driving circuits.
  • the second electronic device 5200 includes a receiving circuit 5210, a load 5220, and an AP5230.
  • the receiving circuit 5210 includes a controller 5211, ASK modulation circuit 5212, rectifier circuit 5213, matching circuit 5214, air-core coil 5215, FSK demodulation circuit 5218, output switch 5219, auxiliary power rectifier circuit 5240, voltage stabilizing circuit 5250, sensor 5260 ,
  • the matching circuit 5214 is a series-parallel combination of capacitors, the first end of the capacitor Cs is connected to the first end of the air-core coil 5215, the first end of the capacitor Cd is connected to the second end of the air-core coil, and the second end of Cd is connected The second end of Cs.
  • the second terminal of Cs is also connected to the first terminal of the second power switch 5280, and the first terminal of Cd is connected to the first terminal of the first power switch 5270.
  • the second terminal of the first power switch 5270 is connected to an input terminal of the rectifier circuit 5213, and the first power switch 5270 is controlled by the driving circuit 5271.
  • the second terminal of the second power switch 5280 is connected to the other input terminal of the rectifier circuit 5213, and the second power switch 5280 is controlled by the driving circuit 5281.
  • the driving circuit 5271 and the driving circuit 5281 are controlled by the sensor 5260.
  • the driving circuit 5271, the driving circuit 5281, and the sensor 5260 are powered by the voltage stabilizing circuit 5250 (and/or the internal battery of the wireless charging device, not shown in FIG. 10).
  • the voltage stabilizing circuit 5250 is powered by the auxiliary power rectifier circuit 5240.
  • the auxiliary power rectifier circuit 5240 converts the alternating current induced on the air-core coil 5215 into direct current, thereby powering the drive circuit 5271, so that the second electronic device has no internal battery or other energy storage device, or the internal battery or other energy storage device.
  • the above-mentioned wireless charging device may also include a functional module that can perform short-range communication with the first electronic device, such as a Bluetooth module, a wireless fidelity (Wireless Fidelity, WiFi) module, and a near field communication (NFC) module.
  • a functional module that can perform short-range communication with the first electronic device, such as a Bluetooth module, a wireless fidelity (Wireless Fidelity, WiFi) module, and a near field communication (NFC) module.
  • Module to realize the smart features of the wireless charging device for example, keyboard input, screen display content, when the wireless charging device is low in battery power, automatically start the first electronic device to charge it, etc.
  • the embodiment of the present application does not limit the specific modules included in the wireless charging device, and FIG. 8, FIG. 9, and FIG. 10 are only exemplary descriptions. In practical applications, the wireless charging device may include more or less circuit modules than those shown in FIG. 8, FIG. 9 and FIG. 10.
  • the in-band communication between the first electronic device and the wireless charging device can not only transfer control protocols and data, but also transfer other wireless charging devices required by the wireless charging device.
  • Control instructions and data can be sent.
  • the wireless charging device can send the Bluetooth Mac address to the first electronic device for automatic Bluetooth connection, without the user having to manually set the pairing.
  • the first electronic device sends a WiFi key or a Bluetooth Mac address to the wireless charging device for pairing connection.
  • the first electronic device sends an operation instruction to the wireless charging device, such as turning on an LED light.
  • a wireless charging device is worn on the first electronic device (the wireless charging device is an accessory device of the first electronic device and is physically connected to the first electronic device), and the wireless charging device is located between the first electronic device and the first electronic device.
  • the wireless charging transmission function of the first electronic device is turned on, if it is not determined whether the wireless charging device has a wireless charging requirement, then the receiving circuit of the wireless charging device will receive the wireless power of the first electronic device , The first electronic device performs wireless charging for the wireless charging device. If the second electronic device is placed on the first electronic device again, due to the ASK conflict and FOD protection between the wireless charging device and the second electronic device, the first electronic device will suspend the wireless charging transmission function.
  • the embodiment of the present application determines whether the wireless charging device has a wireless charging requirement, and the wireless charging receiving function of the receiving circuit of the wireless charging device is turned on only when the wireless charging device has a wireless charging requirement.
  • the wireless charging receiving function of the receiving circuit of the wireless charging device is turned off. In other words, when the first electronic device is wearing a wireless charging device, if the user wants to charge the second electronic device, the user places the second electronic device on the first electronic device.
  • the wireless charging receiving function of the receiving circuit of the wireless charging device is in the off state, and the wireless energy emitted by the first electronic device can be transparently transmitted to the second electronic device through the wireless charging device, so that the first electronic device is the first electronic device through the wireless charging device.
  • the electronic equipment is charged without causing conflicts between FOD protection and ASK communication. Therefore, without disassembling the wireless charging device, it is possible to realize that the first electronic device is receiving wireless charging in a forward direction or charging other electronic devices in a reverse direction.
  • the aforementioned wireless charging device activates the modulation function of the ASK modulation circuit, it can send configuration and other data information (for example, power configuration, device type, voltage information, etc.) to the first electronic device, and the first electronic device is correct
  • the first electronic device performs wireless charging for the wireless charging device. If the first electronic device does not correctly receive the data information sent by the wireless charging device, the first electronic device may suspend its wireless charging transmission function. For example, when the second electronic device and the wireless charging device both send data information to the first electronic device, because the second electronic device and the wireless charging device have an ASK communication conflict, the first electronic device cannot correctly receive the data information sent by the wireless charging device , The first electronic device will suspend its wireless charging and transmitting function.
  • the wireless charging receiving function of the receiving circuit of the wireless charging device when the first electronic device is charging the second electronic device, or the second electronic device is charging the first electronic device, the wireless charging receiving function of the receiving circuit of the wireless charging device is turned off, and only when the wireless charging The device will turn on the wireless charging receiving function of its receiving circuit only when it determines that it has wireless charging requirements. Moreover, there is no magnetic material on the coil of the wireless charging device, so that when the first electronic device charges the second electronic device, or the second electronic device charges the first electronic device, there is no need to remove the wireless charging device from the first electronic device.
  • the first electronic device can charge other electronic devices through the wireless charging device, or the first electronic device can receive wireless power from other electronic devices through the wireless charging device for charging without causing FOD protection malfunction and ASK communication conflict. Therefore, the embodiments of the present application can realize that the first electronic device charges the wireless charging device, and can also realize that the first electronic device charges the second electronic device through the wireless charging device, or the first electronic device receives the wireless charging device through the wireless charging device. Power from the second electronic device. Therefore, it is not necessary to remove the wireless charging device worn on the first electronic device, so that the first electronic device can receive the wireless charging in the forward direction or charge other electronic devices in the reverse direction.
  • an embodiment of the present application further provides a wireless charging method. As shown in FIG. 11, steps S703-S705 may be further included after the above step S702.
  • the second information is used to indicate the completion of charging of the wireless charging device.
  • the second information may be charging completion indication information.
  • the second information indicating that the charging is completed may be transmitted to the first electronic device.
  • the second information indicating that the wireless charging device 3200 is fully charged may be sent to the first electronic device 3100 in an ASK manner.
  • S704 The first electronic device receives the second information.
  • the first electronic device Based on the second information, the first electronic device suspends the wireless charging and transmitting function of the first electronic device.
  • the first electronic device may turn off its wireless charging transmission function. For example, as shown in FIG. 8, after the wireless charging transmission function of the first electronic device 3100 is turned off, the coil 3215 in the receiving circuit 3210 of the wireless charging device 3200 (wireless charging device) cannot receive wireless power, so the wireless charging device 3200 receives The wireless receiving function of the circuit 3210 is turned off. If you want to turn on the wireless receiving function of the receiving circuit 3210 of the wireless charging device 3200 again, it is necessary to determine whether the wireless charging device 3200 has a wireless charging requirement through step S701.
  • the embodiment of the present application further provides a wireless charging method.
  • steps S706-S707 may be further included after the above step S702.
  • turning off the wireless charging receiving function of its receiving circuit includes: the wireless charging device 3200 turns off the output switch 3219 and turns off the modulation function of the ASK modulation circuit 3212.
  • turning off the wireless charging receiving function of its receiving circuit includes: the wireless charging device 4200 turns off the first switch 4217.
  • the receiving end device includes a wireless charging device.
  • the above-mentioned first electronic device does not correctly receive the data sent by the receiving end device within the preset time period, including: the receiving end device turns off the modulation function of its ASK communication circuit, causing the first electronic device to fail to correctly receive the data sent by the receiving end device .
  • the wireless charging device turns off the modulation function of its ASK modulation circuit, that is, the wireless charging device will not send data to the first electronic device, then the first electronic device will not be able to correctly receive the data sent by the receiving end device.
  • the first electronic device can turn off its wireless charging and transmitting function.
  • the first electronic device does not correctly receive the data sent by the receiving end device within the preset time period, which may also include: an ASK communication conflict occurs between the receiving end devices, causing the first electronic device to fail to correctly receive the data sent by the receiving end The data.
  • an ASK communication conflict occurs between the receiving end devices, causing the first electronic device to fail to correctly receive the data sent by the receiving end The data.
  • the wireless charging device and other electronic devices simultaneously send data to the first electronic device through the ASK method
  • the data sent by the wireless charging device and other electronic devices are superimposed, causing the first electronic device to fail to correctly receive the wireless charging device and other electronic devices.
  • the first electronic device can turn off its wireless charging and transmitting function.
  • the first electronic device may suspend its wireless charging and transmitting function.
  • step S708 may be further included before step S701.
  • the first electronic device may start its wireless charging and transmitting function when detecting a device to be charged, so as to avoid unnecessary power loss on the first electronic device.
  • the first electronic device determining the device to be charged may include: the first electronic device determines the device to be charged according to an instruction input by the user, or the first electronic device determines the device to be charged according to the detection information of the sensor.
  • the first electronic device receives an instruction to charge the Bluetooth keyboard or the second electronic device input by the user on the application of the first electronic device (for example, the user clicks the icon for charging the Bluetooth keyboard or the user clicks the icon for charging the second electronic device ), the first electronic device determines that there is a device to be charged.
  • the first electronic device may detect that the Bluetooth keyboard is in the cradle mode through the Hall sensor, and determine that there is a device to be charged.
  • the embodiment of the present application does not limit the specific embodiment of the first electronic device to determine the device to be charged.
  • the first electronic device may also periodically activate the transmitting function.
  • the device to be charged When the device to be charged is placed on the first electronic device, the device to be charged sends data to the first electronic device, and the first electronic device will start periodically.
  • the transmission function is switched to continuous mode. That is, the first electronic device continuously emits electric energy.
  • the first electronic device may also activate its wireless charging transmission function when the power of the wireless charging device is lower than a preset threshold. For example, when the power of the wireless charging device is lower than the preset threshold, the wireless charging device sends instruction information to the first electronic device through the Bluetooth module, and the first electronic device starts its wireless charging transmission function based on the instruction information.
  • an embodiment of the present application further provides a wireless charging method. As shown in FIG. 14, steps S709-S710 may be included before step S701.
  • the first electronic device determines that the wireless charging device has a wireless charging requirement, and the first electronic device does not detect the second electronic device.
  • determining that the wireless charging device has a wireless charging requirement by the first electronic device may include: the first electronic device receives an instruction input by the user and determines that the wireless charging device has a wireless charging requirement; or, the first electronic device determines that the wireless charging device has a wireless charging requirement based on detection information from a sensor.
  • the charging equipment has wireless charging requirements.
  • the first electronic device may receive an instruction input by the user, and determine that the wireless charging device has a wireless charging requirement.
  • the first electronic device may detect that the Bluetooth keyboard is in the cradle mode through the Hall sensor, and determine that the Bluetooth keyboard has a wireless charging requirement.
  • determining that the wireless charging device has a wireless charging requirement by the first electronic device may further include: the first electronic device receives a charging request from the wireless charging device, and determining that the wireless charging device has a wireless charging requirement. For example, when the power of the wireless charging device is lower than a preset threshold, the wireless charging device sends a charging request to the first electronic device, and after receiving the charging request, the first electronic device determines that the wireless charging device has a wireless charging requirement.
  • the failure of the first electronic device to detect the second electronic device may include: the first electronic device determines that its wireless charging and transmitting function is in the inactive state; or, the first electronic device determines that its wireless charging and transmitting function is in the inactive state. After the activation state, the first electronic device starts its wireless charging and transmitting function, and the first electronic device does not detect the ASK signal of the second electronic device within the preset time period, then the first electronic device can determine that it has not detected the second electronic device equipment.
  • the first electronic device sends first information to the wireless charging device.
  • the first electronic device may enable FSK to send the first information to the wireless charging device.
  • the first information may be agreed protocol data, which is used to indicate that the wireless charging device has a wireless charging requirement.
  • the wireless charging device turns on the wireless receiving function of its receiving circuit to provide power to the load.
  • step S709 is added to determine the wireless charging requirement of the wireless charging device on the first electronic device.
  • the first electronic device determines that the wireless charging device has a wireless charging requirement, and the first electronic device does not detect other electronic devices.
  • the first information is sent to the wireless charging device, and the wireless charging device turns on the wireless charging receiving function of its receiving circuit after receiving the first information, thereby avoiding the problem of the wireless charging interruption caused by the forcible joining of the wireless charging device.
  • the wireless charging device 8200 includes a receiving circuit 8210 and a load 8230.
  • the receiving circuit 8210 is used to provide electrical energy to the load 8230.
  • the receiving circuit 8210 includes a Bluetooth module 8211, a voltage stabilizing circuit 8212, a rectifying circuit 8213, a matching circuit 8214, a coil 8215, and a second switch 8216.
  • One end of the second switch 8216 is connected to the output end of the rectifier circuit 8213, and the other end of the second switch 8216 is used to connect a load.
  • the coil of the wireless charging device is located inside the casing of the wireless charging device, and there is no magnetic material on the coil of the wireless charging device.
  • the second switch 8216 may be an active switch or a passive switch.
  • the related description of the second switch can be a parameter of the first switch in the above-mentioned embodiment, which will not be repeated here.
  • the embodiment of the present application also provides a wireless charging method, which is applied to the wireless charging device 8200 shown in FIG. 15, and the wireless charging device is used in conjunction with the first electronic device. As shown in FIG. 16, the wireless charging method includes step S1601- S1606.
  • the first electronic device determines that the wireless charging device has a wireless charging requirement.
  • step S1601 reference may be made to step S709, which will not be repeated here.
  • the first electronic device starts its wireless charging and transmitting function.
  • the wireless charging device receives wireless power from the first electronic device.
  • the wireless charging device 8200 is located between the first electronic device 8100 and the second electronic device 8300.
  • the coil 8215 in the receiving circuit 8210 of the wireless charging device 8200 can sense the wireless energy generated by the coil 8115 of the first electronic device 8100, through the matching circuit 8214 and the rectifier circuit 8213.
  • the voltage stabilizing circuit 8212 can supply power to the Bluetooth module 8211.
  • the wireless power emitted by the first electronic device 8100 can be transparently transmitted to the coil 8315 of the second electronic device 8300 through the coil 8215 of the wireless charging device 8200, so that it can be When the wireless charging device 8200 is detached, the first electronic device 8100 is implemented to charge the second electronic device 8300 through the wireless charging device 8200.
  • the Bluetooth module of the wireless charging device is paired with the first electronic device.
  • the Bluetooth module 8211 of the wireless charging device 8200 can be paired and connected with the first electronic device.
  • the Bluetooth module of the wireless charging device is successfully paired and connected with the first electronic device, the Bluetooth module and the first electronic device exchange data through Bluetooth communication.
  • the Bluetooth module 8211 of the wireless charging device 8200 and the first electronic device 8100 are successfully paired and connected, the Bluetooth module 8211 and the first electronic device 8100 interact through out-of-band communication. Data to achieve closed-loop control of wireless charging.
  • the exchange of data between the Bluetooth module and the first electronic device through Bluetooth communication may include: the Bluetooth module receives a first instruction from the first electronic device, and the first instruction is used to instruct the Bluetooth module to open its receiving circuit. Wireless charging receiving function.
  • the Bluetooth module of the wireless charging device turns on the wireless charging receiving function of the receiving circuit.
  • the Bluetooth module of the wireless charging device turns on the wireless charging receiving function of the receiving circuit, including: the Bluetooth module 8211 of the wireless charging device 8200 closes the second switch 8216, so that the receiving circuit 8210 of the wireless charging device 8200 It can provide the load 8230 with the wireless power it senses.
  • the wireless charging device may Discontinue its wireless charging transmission function.
  • the first electronic device may also suspend its wireless charging and transmitting function.
  • this embodiment performs power transmission control by way of out-of-band communication.
  • this embodiment performs power transmission control by way of out-of-band communication.
  • the wireless charging receiving function of the receiving circuit of the wireless charging device be turned on.
  • the first electronic device charges the second electronic device, or when the first electronic device receives power from the second electronic device, that is, when the wireless charging device is not performing wireless charging, the second switch is in the off state, therefore, The receiving circuit of the wireless charging device will not output current to the load, and will not cause the FOD protection to malfunction.
  • the wireless power emitted by the first electronic device can be transparently transmitted to other electronic devices through the coil of the wireless charging device, so there is no need to remove the wireless charging device from the first electronic device.
  • the first electronic device charges the second electronic device through the wireless charging device, or the first electronic device receives the electric energy from the second electronic device through the wireless charging device.
  • the receiving circuit of the wireless charging device in this embodiment does not include the ASK modulation circuit. Therefore, the second electronic device is charged by the first electronic device, or the first electronic device receives power from the second electronic device. At this time, there will be no ASK communication conflict between the wireless charging device and the second electronic device.
  • the embodiment of the present application also provides a wireless charging method.
  • the circuit structure of the wireless charging device in the method is as shown in the wireless charging device 3200 in FIG. 8, and the coil 3215 of the wireless charging device has no magnetic material.
  • the wireless charging device is not charging (the first electronic device is charging the second electronic device, or the first electronic device receives power from the second electronic device), the modulation function of the output switch 3219 and the ASK modulation circuit 3212 is at Disabled.
  • the method includes steps S1801-S1813.
  • the first electronic device determines that the device to be charged has a wireless charging requirement.
  • the device to be charged may be a wireless charging device used in conjunction with the first electronic device, or other electronic devices, such as a second electronic device.
  • the first electronic device starts its wireless charging and transmitting function.
  • the first electronic device determines that the device to be charged has a wireless charging requirement, it activates its wireless charging transmission function.
  • the first electronic device detects the device to be charged.
  • detecting the device to be charged by the first electronic device includes: the first electronic device detects the device type, identity recognition, current change, and other parameters of the device to be charged.
  • the first electronic device When the first electronic device does not detect the device to be charged, the first electronic device suspends its wireless charging transmission function; when the device to be charged is a wireless charging device, continue to perform steps S1804-S1809; when the device to be charged is the second electronic device At this time, continue to perform steps S1810-S1813.
  • the wireless charging device determines that it has a wireless charging requirement.
  • the wireless charging device can determine whether it has a wireless charging requirement according to the instruction input by the user and the detection information of the sensor. If the wireless charging device determines that it has a wireless charging requirement, continue to perform step S1805.
  • the wireless charging device activates the modulation function of the ASK modulation circuit, closes the output switch, and sends the first data information to the first electronic device.
  • the first data information includes information such as configuration information, charging voltage (for example, Control Error Packet (CEP)), and charging power (for example, Received Power (RP)).
  • the configuration information includes information such as device type, power level, ID type, and coupling strength.
  • the wireless charging device may send configuration information such as power level, device type, ID type, coupling strength, and the like to the first electronic device.
  • the wireless charging device may send information such as charging voltage (for example, CEP) and charging power (for example, RP) to the first electronic device.
  • the wireless charging device closes the output switch, so that the receiving circuit of the wireless charging device can output electric energy to the load.
  • the first electronic device determines whether the first data information from the wireless charging device is correctly received.
  • the first electronic device does not correctly receive the first data information from the wireless charging device, including: an ASK communication conflict occurs between the wireless charging device and other devices, resulting in the first electronic device not correctly receiving the first data from the wireless charging device.
  • an ASK communication conflict occurs between the wireless charging device and other devices, resulting in the first electronic device not correctly receiving the first data from the wireless charging device.
  • One data information the wireless charging device turns off its ASK modulation circuit, causing the first electronic device to incorrectly receive the first data information from the wireless charging device.
  • step S1807-S1808 If the first electronic device correctly receives the first data information from the wireless charging device, continue to perform steps S1807-S1808; if the first electronic device does not correctly receive the first data information from the wireless charging device, continue to perform step S1809.
  • the first electronic device charges the wireless charging device.
  • the first electronic device when the first electronic device is charging the wireless charging device, the first electronic device may continue to determine whether the first electronic device has correctly received the first data information from the wireless charging device through step S1806.
  • the first electronic device receives the second information from the wireless charging device.
  • the second information is used to indicate the completion of charging of the wireless charging device.
  • the second information may be charging completion indication information.
  • step S1806-S1807 if the first electronic device receives the second information from the wireless charging device indicating the completion of the charging of the wireless charging device, the first electronic device continues to perform step S1809 and suspends its wireless charging transmission function .
  • the first electronic device suspends its wireless charging and transmitting function.
  • the first electronic device when the first electronic device does not correctly receive the first data information from the wireless charging device, or when the first electronic device receives the charging completion indication information from the wireless charging device, the first electronic device suspends its wireless charging transmission function.
  • S1810 The first electronic device determines whether the second data information from the second electronic device is correctly received.
  • the first electronic device does not correctly receive the second data information from the second electronic device, including: an ASK communication conflict occurs between the second electronic device and other devices, which causes the first electronic device to incorrectly receive the second data from the second electronic device.
  • the second data information of the device or, the second electronic device turns off its ASK modulation circuit, causing the first electronic device to incorrectly receive the second data information from the second electronic device.
  • step S1811-S1812 If the first electronic device correctly receives the second data information from the second electronic device, continue to perform steps S1811-S1812; if the first electronic device does not correctly receive the second data information from the second electronic device, continue to perform step S1813.
  • the first electronic device charges the second electronic device.
  • the first electronic device may continue to determine whether the first electronic device has correctly received the second data information from the second electronic device through step S1810.
  • the first electronic device receives the third information from the second electronic device.
  • the third information is used to indicate the completion of charging of the second electronic device.
  • the third information may be charging completion indication information.
  • the first electronic device if the first electronic device receives the third information from the second electronic device indicating that the wireless charging device is fully charged, the first electronic device continues to perform step S1813 and suspends its wireless charging transmission function.
  • the wireless charging device used in conjunction with the first electronic device since the wireless charging device used in conjunction with the first electronic device is not wirelessly charged, the output switch and the output switch in the receiving circuit of the wireless charging device are not wirelessly charged.
  • the modulation function of the ASK modulation circuit has been turned off.
  • there is no magnetic material on the coil of the wireless charging device so when the first electronic device is charging the second electronic device, the wireless power can be transparently transmitted to the second electronic device through the wireless charging device, and does not cause FOD protection malfunction and ASK Communication conflict.
  • the first electronic device suspends its wireless charging and transmitting function.
  • FIG. 18 is only an exemplary flowchart showing an execution sequence.
  • the wireless charging method uses the output of the wireless charging device when the first electronic device charges the second electronic device or the second electronic device charges the first electronic device, that is, when the wireless charging device is not performing wireless charging.
  • the modulation function of the switch and the ASK modulation circuit is off, and the modulation function of the output switch and the ASK modulation circuit is turned on only when the wireless charging device determines that it has a wireless charging requirement.
  • there is no magnetic material on the coil of the wireless charging device so that the wireless energy emitted by the first electronic device can be transparently transmitted to other electronic devices through the coil of the wireless charging device. Therefore, without disassembling the wireless charging device from the first electronic device, the first electronic device can charge other electronic devices, or the first electronic device receives wireless power from other electronic devices for charging, and does not cause FOD protection Malfunction and ASK communication conflict.
  • the embodiment of the present application also provides a wireless charging method.
  • the circuit structure of the wireless charging device in the method is as shown in the wireless charging device 4200 in FIG. 9, and the coil 4215 of the wireless charging device has no magnetic material.
  • the wireless charging device is not charging (the first electronic device is charging the second electronic device, or when the first electronic device receives power from the second electronic device), the first switch 4217 is in an off state.
  • the method includes steps S1901-S1914.
  • the first electronic device determines that the device to be charged has a wireless charging requirement.
  • the first electronic device starts its wireless charging and transmitting function.
  • the first electronic device detects the device to be charged.
  • the first electronic device When the first electronic device does not detect the device to be charged, the first electronic device suspends its wireless charging transmission function; when the device to be charged is a wireless charging device, continue to perform steps S1904-S1910; when the device to be charged is the second electronic device At this time, continue to perform steps S1911-S1914.
  • the wireless charging device determines that it has a wireless charging requirement.
  • the wireless charging device turns on the first switch.
  • the wireless charging device closes the first switch, after the coil in the wireless charging device senses current, it can provide electrical energy to the circuit module in the receiving circuit.
  • the wireless charging device activates the modulation function of the ASK modulation circuit, closes the output switch, and sends the first data information to the first electronic device.
  • the first electronic device determines whether the first data information from the wireless charging device is correctly received.
  • step S1910 If the first electronic device correctly receives the first data information from the wireless charging device, continue to perform steps S1908-S1909; if the first electronic device does not correctly receive the first data information from the wireless charging device, continue to perform step S1910.
  • the first electronic device charges the wireless charging device.
  • the first electronic device when the first electronic device is charging the wireless charging device, the first electronic device may continue to determine whether the first electronic device has correctly received the first data information from the wireless charging device through step S1907.
  • the second information is used to indicate the completion of charging of the wireless charging device.
  • the second information may be charging completion indication information.
  • step S1907-S1908 if the first electronic device receives the second information sent from the wireless charging device indicating that the charging of the wireless charging device is completed, the first electronic device continues to perform step S1910 and suspends its wireless charging transmission Features.
  • the first electronic device suspends its wireless charging and transmitting function.
  • the first electronic device when the first electronic device does not correctly receive the first data information from the wireless charging device, or when the first electronic device receives the charging completion indication information from the wireless charging device, the first electronic device suspends its wireless charging transmission function.
  • the first electronic device determines whether the second data information from the second electronic device is correctly received.
  • step S1914 If the first electronic device correctly receives the second data information from the second electronic device, continue to perform steps S1912-S1913; if the first electronic device does not correctly receive the second data information from the second electronic device, continue to perform step S1914.
  • the first electronic device charges the second electronic device.
  • the first electronic device may continue to determine whether the first electronic device has correctly received the second data information from the second electronic device through step S1911.
  • the first electronic device receives third information from the second electronic device.
  • the third information is used to indicate the completion of charging of the second electronic device.
  • the third information may be charging completion indication information.
  • the first electronic device if the first electronic device receives the third information from the second electronic device indicating that the charging of the wireless charging device is completed, the first electronic device continues to perform step S1914 and suspends its wireless charging transmission function.
  • the first electronic device when the first electronic device is charging the second electronic device, since the wireless charging device used with the first electronic device is not wirelessly charged, the first switch in the receiving circuit of the wireless charging device is always at Disabled. Moreover, there is no magnetic material on the coil of the wireless charging device, so when the first electronic device is charging the second electronic device, the wireless power can be transparently transmitted to the second electronic device through the wireless charging device, and it will not cause FOD protection malfunction and ASK. Communication conflict.
  • the first electronic device suspends its wireless charging and transmitting function.
  • FIG. 19 is only an exemplary flowchart showing an execution sequence.
  • the wireless charging method provided by the embodiments of the present application, when the first electronic device charges the second electronic device or the second electronic device charges the first electronic device, that is, when the wireless charging device is not performing wireless charging, the second electronic device of the wireless charging device A switch is in an off state, and only when the wireless charging device determines that it has a wireless charging requirement, the first switch, the output switch and the modulation function of the ASK modulation circuit are turned on. Moreover, there is no magnetic material on the coil of the wireless charging device, so that the wireless energy emitted by the first electronic device can be transparently transmitted to other electronic devices through the coil of the wireless charging device. Therefore, without disassembling the wireless charging device from the first electronic device, the first electronic device can charge other electronic devices, or the first electronic device receives wireless power from other electronic devices for charging, and does not cause FOD protection Malfunction and ASK communication conflict.
  • the embodiment of the present application also provides a wireless charging method.
  • the circuit structure of the wireless charging device in the method is as shown in the wireless charging device 3200 in FIG. 8, and the coil 3215 of the wireless charging device has no magnetic material.
  • the wireless charging device is not charging (the first electronic device charges the second electronic device, or the first electronic device receives power from the second electronic device), the modulation functions of the output switch 3219 and the ASK modulation circuit 3212 are turned off status.
  • the method includes steps S2001-S2014.
  • the first electronic device determines that the device to be charged has a wireless charging requirement.
  • the first electronic device activates its wireless charging and transmitting function.
  • the first electronic device detects the device to be charged.
  • the first electronic device When the first electronic device does not detect the device to be charged, the first electronic device suspends its wireless charging transmission function; when the device to be charged is a wireless charging device, continue to perform steps S2004-S2010; when the device to be charged is the second electronic device When, proceed to steps S2011-S2014.
  • the first electronic device determines that the wireless charging device has a wireless charging requirement, and the first electronic device does not detect other electronic devices.
  • the first electronic device sends the first information to the wireless charging device.
  • the first electronic device may enable FSK to send the first information to the wireless charging device.
  • the first information may be agreed protocol data, which is used to indicate that the wireless charging device has a wireless charging requirement.
  • the wireless charging device receives and recognizes the first information, activates the modulation function of the ASK modulation circuit, closes the output switch, and sends the first configuration information and the first charging request to the first electronic device.
  • S2007 The first electronic device determines whether the first data information from the wireless charging device is correctly received.
  • step S2007 can refer to step S1806, which will not be repeated here.
  • step S2008 If the first electronic device correctly receives the first data information from the wireless charging device, continue to perform step S2008; if the first electronic device does not correctly receive the first data information from the wireless charging device, continue to perform step S2014.
  • the first electronic device charges the wireless charging device.
  • the first electronic device receives the second information from the wireless charging device.
  • the second information is used to indicate the completion of charging of the wireless charging device.
  • the second information may be charging completion indication information.
  • step S2010 if the first electronic device receives the second information sent from the wireless charging device indicating that the wireless charging device is fully charged, the first electronic device continues to perform step S2010 and suspends its wireless charging transmission Features.
  • the first electronic device suspends its wireless charging and transmitting function.
  • the first electronic device when the first electronic device does not correctly receive the first data information from the wireless charging device, or when the first electronic device receives the charging completion instruction information sent from the wireless charging device, the first electronic device suspends its wireless charging transmission function .
  • the first electronic device determines whether the second data information from the second electronic device is correctly received.
  • step S2014 If the first electronic device correctly receives the second data information from the second electronic device, continue to perform steps S2012-S2013; if the first electronic device does not correctly receive the second data information from the second electronic device, continue to perform step S2014.
  • the first electronic device charges the second electronic device.
  • the first electronic device may continue to determine whether the first electronic device has correctly received the second data information from the second electronic device through step S2011.
  • the first electronic device receives third information from the second electronic device.
  • the third information is used to indicate the completion of charging of the second electronic device.
  • the third information may be charging completion indication information.
  • the first electronic device if the first electronic device receives the third information from the second electronic device indicating that the wireless charging device is fully charged, the first electronic device continues to perform step S2014 and suspends its wireless charging transmission function.
  • the wireless charging device used in conjunction with the first electronic device since the wireless charging device used in conjunction with the first electronic device is not wirelessly charged, the output switch and ASK modulation in the receiving circuit of the wireless charging device The modulation function of the circuit has been turned off. Moreover, there is no magnetic material on the coil of the wireless charging device, so when the first electronic device is charging the second electronic device, the wireless power can be transparently transmitted to the second electronic device through the wireless charging device, and does not cause FOD protection malfunction and ASK Communication conflict.
  • the first electronic device suspends its wireless charging and transmitting function.
  • FIG. 20 is only an exemplary flowchart showing an execution sequence.
  • the wireless charging method provided by the embodiments of the present application is configured to perform wireless charging when the first electronic device is charging the second electronic device or the first electronic device receives power from the second electronic device, that is, when the wireless charging device is not performing wireless charging.
  • the output switch of the device and the modulation function of the ASK modulation circuit are turned off, and the modulation function of the output switch and the ASK modulation circuit is turned on only when the wireless charging device determines that it has a wireless charging requirement.
  • there is no magnetic material on the coil of the wireless charging device so that the wireless energy emitted by the first electronic device can be transparently transmitted to other electronic devices through the coil of the wireless charging device. Therefore, without disassembling the wireless charging device from the first electronic device, the first electronic device can charge other electronic devices, or the first electronic device receives wireless power from other electronic devices for charging, and does not cause FOD protection Malfunction and ASK communication conflict.
  • FIG. 21 is a wireless charging receiving circuit 21000 provided by an embodiment of the application.
  • the wireless charging receiving circuit 21000 may be applied to a wireless charging device, which is an accessory device of the first electronic device and is physically connected to the first electronic device.
  • the wireless charging receiving circuit 21000 includes a controller 21001 and a coil 21002, the coil 21002 is located inside the casing of the wireless charging device, and there is no magnetic material between the coil 21002 and the inside of the casing of the wireless charging device, or the coil 21002 and the casing of the wireless charging device The area of the magnetic material between the inner sides of the is smaller than the preset threshold; when the first electronic device charges the second electronic device, or the first electronic device receives power from the second electronic device, the wireless charging receiving circuit 21000 performs wireless charging The receiving function is turned off.
  • the coil 21002 is used to induce an external magnetic field to generate an induced current.
  • the controller 21001 is used to determine that the wireless charging device has a wireless charging requirement.
  • the controller 21001 is also used to turn on the wireless charging receiving function of the receiving circuit based on the wireless charging requirement.
  • the wireless charging receiving circuit 21000 may further include an output switch and an ASK modulation circuit.
  • the controller is specifically configured to turn on the modulation function of the ASK modulation circuit and close the output switch based on wireless charging requirements.
  • the above-mentioned wireless charging receiving circuit 21000 may further include one or more first switches, a matching circuit, and a rectifier circuit. Both ends of the coil 21002 are connected to the input end of the matching circuit, and the output end of the matching circuit is connected to the input of the rectifying circuit. At the end, one or more first switches may be arranged at a position between the coil 21002 and the matching circuit, and/or at a position between the matching circuit and the input terminal of the rectifier circuit.
  • the above-mentioned controller is specifically further configured to close the above-mentioned one or more first switches, open the modulation function of the ASK modulation circuit, and close the output switch based on wireless charging requirements.
  • controller 21001 may be used to execute the wireless charging method in any of the above-mentioned embodiments of FIG. 7, FIG. 11, FIG. 12, FIG. 13, FIG. 14, FIG. 16, FIG. 18, FIG. 19, and FIG.
  • An embodiment of the present application also provides a wireless charging device, which includes a charging management chip and the above-mentioned wireless charging receiving circuit 21000.
  • the embodiments of the present application also provide a wireless charging system.
  • the wireless charging system includes a first electronic device, a wireless charging device, and a second electronic device.
  • the wireless charging device is located between the first electronic device and the second electronic device.
  • the charging device is an accessory device of the first electronic device and is physically connected to the first electronic device; the first electronic device is used for charging the wireless charging device, used for charging the second electronic device through the wireless charging device, and used for The wireless charging device receives power from the second electronic device.
  • the wireless charging device includes a wireless charging receiving circuit 21000 shown in FIG. 21.
  • the terminal device includes a hardware structure and/or software module corresponding to each function.
  • the present application can be implemented in a combination of hardware and computer software. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the steps of the method or algorithm described in combination with the disclosure of this application can be implemented in a hardware manner, or can be implemented in a manner in which a processor executes software instructions.
  • Software instructions can be composed of corresponding software modules, which can be stored in random access memory (Random Access Memory, RAM), flash memory, erasable programmable read-only memory (Erasable Programmable ROM, EPROM), and electrically erasable Programmable read-only memory (Electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium.
  • the storage medium may also be an integral part of the processor.
  • the processor and the storage medium may be located in the ASIC.
  • the ASIC may be located in the core network interface device.
  • the processor and the storage medium may also exist as discrete components in the core network interface device.
  • the functions described in the present invention can be implemented by hardware, software, firmware, or any combination thereof.
  • these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on the computer-readable medium.
  • the computer-readable medium includes a computer-readable storage medium and a communication medium, where the communication medium includes any medium that facilitates the transfer of a computer program from one place to another.
  • the storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Computer Hardware Design (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

一种无线充电系统和无线充电方法,该无线充电系统包括第一电子设备(2100)、无线充电设备(2200)和第二电子设备(2300),无线充电设备位于第一电子设备和第二电子设备之间,其中,无线充电设备为第一电子设备的附属设备且与第一电子设备物理连接,无线充电设备包括接收电路和外壳,接收电路包括接收线圈,接收线圈位于外壳的内侧;第一电子设备用于对无线充电设备充电,用于透过无线充电设备对第二电子设备充电,以及用于透过无线充电设备接收来自第二电子设备的电能。该无线充电系统和无线充电方法解决了在更换无线充电发射端设备或接收端设备时,需要摘除智能配件,导致用户体验不佳的问题。

Description

一种无线充电系统和无线充电方法
本申请要求于2019年11月20日提交国家知识产权局、申请号为201911143579.6、发明名称为“一种无线充电系统和无线充电方法”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及无线充电技术领域,尤其涉及一种无线充电系统和无线充电方法。
背景技术
随着移动终端的广泛应用,移动终端充电的便捷性及通用性越来越被更多用户重视,为了方便用户充电,无线充电技术应运而生。为了保护移动终端的外壳或改善美观,有很大部分用户喜欢在移动终端上装置智能配件(例如,蓝牙键盘或智能皮套),使得移动终端的用户体验更得以扩展和加强。
但是,在移动终端和智能配件均具备无线充电能力的情况下,由于Qi标准的无线充电系统仅支持一对一通信,在同一时刻只能实现一对一的无线电能传输。因此,在更换无线充电发射端设备或接收端设备时,往往需要移走其中一个设备,再重新进行无线充电配对。例如,在移动终端佩戴具有无线充电功能的智能配件时,只有把智能配件摘除后,移动终端才能接收来自其他电子设备的无线电能或者对其他电子设备发射无线电能。然而摘除智能配件往往十分不便捷,用户体验不佳。
发明内容
本申请实施例提供一种无线充电系统和无线充电方法,无需摘除智能配件,即可实现第一电子设备正向接收无线充电或反向对其他电子设备充电,提升了用户体验。
为达到上述目的,本申请实施例采用如下技术方案:
本申请实施例的第一方面,提供一种无线充电系统,该无线充电系统包括第一电子设备、无线充电设备和第二电子设备,该无线充电设备位于上述第一电子设备和上述第二电子设备之间,其中,该无线充电设备为上述第一电子设备的附属设备且与上述第一电子设备物理连接,该无线充电设备包括接收电路和外壳,该接收电路包括接收线圈,该接收线圈位于上述外壳的内侧;上述第一电子设备用于对上述无线充电设备充电,用于透过上述无线充电设备对上述第二电子设备充电,以及用于透过上述无线充电设备接收来自上述第二电子设备的电能。基于本方案,通过第一电子设备透过无线充电设备对第二电子设备充电,以及透过无线充电设备接收来自第二电子设备的电能,从而能够不需要将无线充电设备从第一电子设备上拆卸下来,即可实现第一电子设备正向接收无线充电或反向对其他电子设备充电。
结合第一方面,在一种可能的实现方式中,上述第一电子设备对上述第二电子设备充电,或接收来自上述第二电子设备的电能时,上述第一电子设备和上述第二电子设备之间的电磁场穿透上述无线充电设备。基于本方案,通过第一电子设备和第二电子设备之间进行无线充电时,电磁场穿透第一电子设备和第二电子设备之间的无线充 电设备,从而能够实现第一电子设备透过无线充电设备对第二电子设备充电,以及透过无线充电设备接收来自第二电子设备的电能。
结合第一方面和上述可能的实现方式,在另一种可能的实现方式中,上述接收线圈和上述外壳的内侧之间无磁性材料,或者,上述接收线圈和上述外壳的内侧之间的磁性材料的面积小于预设阈值;在上述第一电子设备对上述第二电子设备充电,或者,上述第一电子设备接收来自上述第二电子设备的电能时,上述接收电路的无线充电接收功能处于关闭状态,上述无线充电设备用于确定其有无线充电需求,并基于该无线充电需求,打开上述接收电路的无线充电接收功能。基于本方案,通过在第一电子设备对第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能时,无线充电设备的接收电路的无线充电接收功能处于关闭状态,从而使得无线充电设备不会和第二电子设备之间发生ASK通信冲突,也不会引起FOD保护误动作。而且由于无线充电设备的接收线圈上无磁性材料或磁性材料的面积小于预设阈值,从而使得第一电子设备和第二电子设备之间的电磁场能够透过无线充电设备,实现第一电子设备透过无线充电设备为第二电子设备充电,或者,实现第一电子设备透过无线充电设备接收来自第二电子设备的电能。可以理解的,本方案既能够实现第一电子设备为无线充电设备充电,也能够在第一电子设备对第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能时,实现无线电能的透传,从而无需摘除第一电子设备上的无线充电设备,即可实现第一电子设备正向接收无线充电或反向对其他电子设备充电。
结合第一方面和上述可能的实现方式,在另一种可能的实现方式中,上述接收电路还包括输出开关和ASK调制电路,上述接收电路的无线充电接收功能处于关闭状态,包括:该输出开关处于关断状态,且该ASK调制电路的调制功能处于关闭状态;上述无线充电设备具体用于基于上述无线充电需求,打开上述ASK调制电路的调制功能,并闭合上述输出开关。基于本方案,在第一电子设备对第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能时,输出开关和ASK调制电路的调制功能处于关闭状态,从而使得第一电子设备正向接收无线充电或反向对其他电子设备充电时,无线充电设备的损耗较小,不会引起FOD保护和ASK通信冲突。而且,在无线充电设备确定其有无线充电需求时,才会打开ASK调制电路的调制功能,闭合输出开关,从而实现第一电子设备为无线充电设备充电。
结合第一方面和上述可能的实现方式,在另一种可能的实现方式中,上述无线充电设备具体用于根据用户输入的指令或传感器的检测信息,确定该无线充电设备有无线充电需求;该无线充电设备具体还用于接收来自上述第一电子设备的第一信息,并基于该第一信息确定该无线充电设备有无线充电需求。基于本方案,可以根据用户输入的指令或传感器的检测信息确定无线充电设备有充电需求,也可以通过接收第一电子设备发送的协议数据,确定无线充电设备有充电需求。
结合第一方面和上述可能的实现方式,在另一种可能的实现方式中,上述无线充电设备还用于在该无线充电设备充电完成时,向上述第一电子设备发送第二信息,该第二信息用于指示上述无线充电设备充电完成;上述无线充电设备还用于在该无线充电设备充电完成时,关闭上述ASK调制电路的调制功能,并关断上述输出开关。基于本方案,在无线充电设备充电完成时,可以向第一电子设备发送指示其充电完成的第 二信息,以使得第一电子设备关闭其发射功能;无线充电设备也可以在其充电完成时,自己关闭ASK调制电路的调制功能,关断输出开关,从而使得第一电子设备在预设时长内未正确接收到来自接收端设备发送的数据时,关闭其发射功能。
结合第一方面和上述可能的实现方式,在另一种可能的实现方式中,上述接收电路还包括一个或多个第一开关、匹配电路和整流电路,上述线圈的两端与该匹配电路的输入端连接,该匹配电路的输出端连接整流电路的输入端,上述一个或多个第一开关设置的位置包括:上述线圈与上述匹配电路之间的位置,或,上述匹配电路和上述整流电路的输入端之间的位置中的一个或多个位置。基于本方案,通过在无线充电设备的接收电路中设置第一开关,能够在第一电子设备正向接收无线充电或反向对其他电子设备充电时,进一步减小无线充电设备的损耗,更不容易引起FOD保护误动作。
结合第一方面和上述可能的实现方式,在另一种可能的实现方式中,上述接收电路还包括输出开关和ASK调制电路;上述接收电路的无线充电接收功能处于关闭状态,包括:上述一个或多个第一开关处于关断状态;上述无线充电设备具体用于基于上述无线充电需求,闭合上述一个或多个第一开关,打开上述ASK调制电路的调制功能,并闭合上述输出开关。基于本方案,在第一电子设备对第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能时,第一开关处于关断状态,从而使得第一电子设备正向接收无线充电或反向对其他电子设备充电时,无线充电设备的损耗足够小,不会引起FOD保护,也不会发生ASK通信冲突。而且,在无线充电设备确定其有无线充电需求时,才会打开第一开关,以及ASK调制电路的调制功能和输出开关,从而实现第一电子设备为无线充电设备充电。
结合第一方面和上述可能的实现方式,在另一种可能的实现方式中,上述第一开关为有源开关或无源开关。基于本方案,第一开关可以为一对背靠背的MOSFET、或电磁继电器等有源器件,也可以为按键、干簧管等无源器件。
结合第一方面和上述可能的实现方式,在另一种可能的实现方式中,上述无线充电设备还用于根据用户输入的指令或传感器的检测信息,确定该无线充电设备有无线充电需求。基于本方案,无线充电设备可以根据用户输入的指令或传感器的检测信息确定其有无线充电需求。
结合第一方面和上述可能的实现方式,在另一种可能的实现方式中,上述方法还包括:上述无线充电设备充电还用于在该无线充电设备充电完成时,向上述第一电子设备发送第二信息,该第二信息用于指示该无线充电设备充电完成;上述无线充电设备充电还用于在该无线充电设备充电完成时,关断上述第一开关。基于本方案,在无线充电设备充电完成时,可以向第一电子设备发送指示其充电完成的第二信息,以使得第一电子设备关闭其发射功能;无线充电设备也可以在其充电完成时,自己关断第一开关,从而使得第一电子设备在预设时长内未正确接收到来自接收端设备发送的数据时,关闭其发射功能。
结合第一方面和上述可能的实现方式,在另一种可能的实现方式中,上述接收线圈和上述外壳的内侧之间无磁性材料,或者,上述接收线圈和上述外壳的内侧之间的磁性材料的面积小于预设阈值;上述接收电路还包括蓝牙模块,在上述第一电子设备对上述第二电子设备充电,或者,上述第一电子设备接收来自上述第二电子设备的电 能时,上述接收电路的无线充电接收功能处于关闭状态;上述无线充电设备还用于通过上述蓝牙模块与上述第一电子设备配对;上述无线充电设备还用于在上述蓝牙模块与上述第一电子设备配对连接成功的情况下,通过上述蓝牙模块接收来自上述第一电子设备的第一指令,通过上述蓝牙模块打开上述接收电路的无线充电接收功能;该第一指令用于指示打开上述接收电路的无线充电接收功能。基于本方案,在第一电子设备和无线充电设备的蓝牙模块之间配对连接成功的情况下,才会开启无线充电设备的无线充电接收功能。而在第一电子设备对第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能时,接收电路的无线充电接收功能处于关闭状态,因此,无线充电设备的接收电路不会输出电流给负载,从而使得无线充电设备不会引起FOD保护误动作。而且由于无线充电设备的接收线圈上无磁性材料或磁性材料的面积小于预设阈值,从而使得第一电子设备和第二电子设备之间的电磁场能够透过无线充电设备,实现第一电子设备透过无线充电设备为第二电子设备充电,或者,实现第一电子设备透过无线充电设备接收来自第二电子设备的电能。可以理解的,本方案中的无线充电设备的接收电路中不包括ASK调制电路,因此,在第一电子设备对第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能时,无线充电设备和第二电子设备之间不会发生ASK通信冲突。
结合第一方面和上述可能的实现方式,在另一种可能的实现方式中,上述接收电路还包括整流电路和第二开关;该第二开关的一端连接上述整流电路的输出端,该第二开关的另一端用于连接负载;上述接收电路的无线充电接收功能处于关闭状态,包括:上述第二开关处于关断状态;上述无线充电设备具体用于通过上述蓝牙模块闭合上述第二开关。基于本方案,在第一电子设备对第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能时,由于无线充电设备的第一开关处于关断状态,因此,无线充电设备的接收电路不会输出电流给负载,不会引起FOD保护和ASK通信冲突。在第一电子设备和无线充电设备的蓝牙模块之间配对连接成功的情况下,才会闭合第一开关,实现第一电子设备给无线充电设备无线充电。可以理解的,本方案既能够实现第一电子设备为无线充电设备充电,也能够在第一电子设备对第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能时,实现无线电能的透传,从而无需摘除第一电子设备上的无线充电设备,即可实现第一电子设备正向接收无线充电或反向对其他电子设备充电。
结合第一方面和上述可能的实现方式,在另一种可能的实现方式中,上述无线充电设备的自谐振频率大于上述第一电子设备对上述第二电子设备充电,或者,上述第一电子设备接收来自上述第二电子设备的电能时的最大工作频率。基于本方案,能提高第一电子设备向第二电子设备无线充电的传输效率,增加传输距离和偏位能力。
结合第一方面和上述可能的实现方式,在另一种可能的实现方式中,上述无线充电设备还用于向上述第一电子设备发送蓝牙媒体访问控制MAC地址;上述无线充电设备还用于接收来自上述第一电子设备的无线保真WIFI密钥或蓝牙MAC地址进行配对连接;上述无线充电设备还用于接收来自上述第一电子设备的操作指令,并执行该操作指令对应的操作。基于本方案,第一电子设备为无线充电设备建立无线充电后,第一电子设备和无线充电设备之间可以通过带内通信传输指令和数据。
本申请实施例的第二方面,提供一种无线充电方法,应用于无线充电系统,该无线充电系统包括第一电子设备、无线充电设备和第二电子设备,该无线充电设备位于上述第一电子设备和上述第二电子设备之间,其中,该无线充电设备为上述第一电子设备的附属设备且与上述第一电子设备物理连接,上述无线充电设备包括接收电路和外壳,该接收电路包括接收线圈,该接收线圈位于所述外壳的内侧;上述方法包括:上述第一电子设备透过上述无线充电设备对上述第二电子设备充电;或者,上述第一电子设备透过上述无线充电设备接收来自上述第二电子设备的电能。
结合第二方面,在一种可能的实现方式中,上述第一电子设备对上述第二电子设备充电,或接收来自上述第二电子设备的电能时,上述第一电子设备和所述第二电子设备之间的电磁场穿透上述无线充电设备。
结合第二方面和上述可能的实现方式,在另一种可能的实现方式中,上述接收线圈和上述外壳的内侧之间无磁性材料,或者,上述接收线圈和上述外壳的内侧之间的磁性材料的面积小于预设阈值;在上述第一电子设备对上述第二电子设备充电,或者,上述第一电子设备接收来自上述第二电子设备的电能时,上述接收电路的无线充电接收功能处于关闭状态;上述方法还包括:上述无线充电设备确定其有无线充电需求;上述无线充电设备基于所述无线充电需求,打开上述接收电路的无线充电接收功能。
结合第二方面和上述可能的实现方式,在另一种可能的实现方式中,上述接收电路还包括输出开关和振幅键控ASK调制电路,上述接收电路的无线充电接收功能处于关闭状态,包括:该输出开关处于关断状态,且该ASK调制电路的调制功能处于关闭状态;上述无线充电设备打开上述接收电路的无线充电接收功能,包括:上述无线充电设备打开上述ASK调制电路的调制功能,并闭合上述输出开关。
结合第二方面和上述可能的实现方式,在另一种可能的实现方式中,上述无线充电设备确定其有无线充电需求,包括:上述无线充电设备根据用户输入的指令或传感器的检测信息,确定上述无线充电设备有无线充电需求;或者,上述无线充电设备接收来自上述第一电子设备的第一信息,并基于上述第一信息确定上述无线充电设备有无线充电需求;该第一信息用于指示上述无线充电设备有无线充电需求。
结合第二方面和上述可能的实现方式,在另一种可能的实现方式中,上述方法还包括:上述无线充电设备在该无线充电设备充电完成时,向上述第一电子设备发送第二信息,该第二信息用于指示上述无线充电设备充电完成;或者,上述无线充电设备在该无线充电设备充电完成时,关闭上述ASK调制电路的调制功能,并关断上述输出开关。
结合第二方面和上述可能的实现方式,在另一种可能的实现方式中,上述接收电路还包括一个或多个第一开关、匹配电路和整流电路,上述接收线圈的两端与上述匹配电路的输入端连接,上述匹配电路的输出端连接上述整流电路的输入端,上述一个或多个第一开关设置的位置包括:上述接收线圈与上述匹配电路之间的位置,或,上述匹配电路和上述整流电路的输入端之间的位置中的一个或多个位置。
结合第二方面和上述可能的实现方式,在另一种可能的实现方式中,上述接收电路还包括输出开关和ASK调制电路,上述接收电路的无线充电接收功能处于关闭状态,包括:上述一个或多个第一开关处于关断状态;上述无线充电设备打开上述接收 电路的无线充电接收功能,包括:上述无线充电设备闭合该一个或多个第一开关,打开上述ASK调制电路的调制功能,并闭合上述输出开关。
结合第二方面和上述可能的实现方式,在另一种可能的实现方式中,上述第一开关为有源开关或无源开关。
结合第二方面和上述可能的实现方式,在另一种可能的实现方式中,上述无线充电设备确定其有无线充电需求,包括:上述无线充电设备根据用户输入的指令或传感器的检测信息,确定上述无线充电设备有无线充电需求。
结合第二方面和上述可能的实现方式,在另一种可能的实现方式中,上述方法还包括:上述无线充电设备充电在该无线充电设备充电完成时,向上述第一电子设备发送第二信息,上述第二信息用于指示上述无线充电设备充电完成;或者,上述无线充电设备充电在该无线充电设备充电完成时,关断上述第一开关。
结合第二方面和上述可能的实现方式,在另一种可能的实现方式中,上述接收电路还包括蓝牙模块,上述接收线圈和上述外壳的内侧之间无磁性材料,或者,上述接收线圈和上述外壳的内侧之间的磁性材料的面积小于预设阈值;在上述第一电子设备对上述第二电子设备充电,或者,上述第一电子设备接收来自上述第二电子设备的电能时,上述接收电路的无线充电接收功能处于关闭状态;上述方法还包括:上述无线充电设备通过上述蓝牙模块与上述第一电子设备配对;上述无线充电设备在上述蓝牙模块与上述第一电子设备配对连接成功的情况下,通过上述蓝牙模块接收来自上述第一电子设备的第一指令,通过上述蓝牙模块打开上述接收电路的无线充电接收功能;该第一指令用于指示打开上述接收电路的无线充电接收功能。
结合第二方面和上述可能的实现方式,在另一种可能的实现方式中,上述接收电路还包括整流电路和第二开关;该第二开关的一端连接上述整流电路的输出端,上述第二开关的另一端用于连接负载;上述接收电路的无线充电接收功能处于关闭状态,包括:上述第二开关处于关断状态;上述无线充电设备通过上述蓝牙模块打开上述接收电路的无线充电接收功能,包括:上述无线充电设备通过上述蓝牙模块闭合上述第二开关。
结合第二方面和上述可能的实现方式,在另一种可能的实现方式中,上述无线充电设备的自谐振频率大于上述第一电子设备对上述第二电子设备充电,或者,上述第一电子设备接收来自上述第二电子设备的电能时的最大工作频率。
本申请实施例的第三方面,提供一种无线充电方法,该方法包括:第一电子设备确定无线充电设备有无线充电需求,且,该第一电子设备未检测到第二电子设备;上述无线充电设备为上述第一电子设备的附属设备且与上述第一电子设备物理连接,上述无线充电设备包括接收电路和外壳,该接收电路包括接收线圈,该接收线圈位于上述外壳的内侧;上述第一电子设备向上述无线充电设备发送第一信息;该第一信息用于指示上述无线充电设备打开上述无线充电设备的接收电路的无线充电接收功能。基于本方案,在第一电子设备上增加对无线充电设备的无线充电需求的判断,在第一电子设备确定无线充电设备有无线充电需求,且第一电子设备未检测到其他电子设备的情况下,才会向无线充电设备发送第一信息,无线充电设备接收第一信息后开启其接收电路的无线充电接收功能,从而避免了无线充电设备强行加入而导致无线充电中断 的问题。
结合第三方面,在一种可能的实现方式中,上述第一电子设备确定无线充电设备有无线充电需求,包括:上述第一电子设备根据用户输入的指令或触感器的检测信息,确定该无线充电设备有无线充电需求。基于本方案,第一电子设备可以根据用户输入的指令或传输器的检测信息确定无线充电设备有无线充电需求。
结合第三方面和上述可能的实现方式,在另一种可能的实现方式中,上述方法还包括:上述第一电子设备接收来自上述无线充电设备的第二信息,基于该第二信息,该第一电子设备中止其无线充电发射功能,该第二信息用于指示上述无线充电设备充电完成;或者,上述第一电子设备在预设时长内未正确接收到来自接收端设备发送的数据时,上述第一电子设备中止其无线充电发射功能;该接收端设备包括上述无线充电设备。基于本方案,第一电子设备在接收指示无线充电设备充电完成的第二信息后,关闭第一电子设备的无线充电发射功能,第一电子设备也可以在预设时长内未正确接收到来自接收端设备发送的数据时,关闭其无线充电发射功能,从而避免了第一电子设备上不必要的电能损耗,以及可能发生的损害。
本申请实施例的第四方面,提供一种电子设备,该电子设备为第一电子设备,该第一电子设备包括:控制器,用于确定无线充电设备有无线充电需求,且,未检测到第二电子设备;该无线充电设备为上述第一电子设备的附属设备且与上述第一电子设备物理连接,上述无线充电设备包括接收电路和外壳,该接收电路包括接收线圈,该接收线圈位于上述外壳的内侧;上述控制器,用于通过FSK调制方式向上述无线充电设备发送第一信息;该第一信息用于指示上述无线充电设备打开该无线充电设备的接收电路的无线充电接收功能。
结合第四方面,在一种可能的实现方式中,上述控制器,具体用于:根据用户输入的指令或传感器的检测信息,确定该无线充电设备有无线充电需求。
结合第四方面和上述可能的实现方式,在另一种可能的实现方式中,上述第一电子设备还包括ASK解调电路,上述控制器,还用于通过该ASK解调电路接收来自上述无线充电设备的第二信息,该第二信息用于指示无线充电设备充电完成;上述控制器,还用于基于该第二信息,关闭该第一电子设备的无线充电发射功能;上述控制器,还用于在预设时长内未正确接收到来自接收端设备发送的数据时,所述控制器关闭该第一电子设备的无线充电发射功能;该接收端设备包括上述无线充电设备。
上述第二方面以及第二方面的各种实现方式的效果描述可以参考第一方面相应效果的描述,上述第四方面以及第四方面的各种实现方式的效果描述可以参考第三方面相应效果的描述。
本申请实施例的第五方面,提供一种计算机可读存储介质,所述计算机可读存储介质中存储有计算机程序代码,当所述计算机程序代码在处理器上运行时,使得所述处理器执行上述任一方面的所述的无线充电方法。
本申请实施例的第六方面,提供了一种计算机程序产品,该程序产品储存有上述处理器执行的计算机软件指令,该计算机软件指令包含用于执行上述任一方面的所述的无线充电方法。
本申请实施例的第七方面,提供了一种装置,该装置以芯片的产品形态存在,该 装置的结构中包括处理器和存储器,该存储器用于与处理器耦合,保存该装置必要的程序指令和数据,该处理器用于执行存储器中存储的程序指令,使得该装置执行上述任一方面所述的无线充电方法。
附图说明
图1为本申请实施例提供的一种无线充电系统的结构示意图;
图2为本申请实施例提供的一种无线充电场景的示意图;
图3为本申请实施例提供的一种无线充电方法应用的场景示意图;
图4为本申请实施例提供的一种无线充电场景中线圈堆叠的示意图;
图5为本申请实施例提供的另一种无线充电场景中线圈堆叠的示意图;
图6为本申请实施例提供的一种无线充电场景中线圈的结构示意图;
图7为本申请实施例提供的一种无线充电方法的流程示意图;
图8为本申请实施例提供的一种无线充电系统的结构示意图;
图8a为本申请实施例提供的另一种无线充电系统的结构示意图;
图9为本申请实施例提供的另一种无线充电系统的结构示意图;
图10为本申请实施例提供的另一种无线充电系统的结构示意图;
图11为本申请实施例提供的另一种无线充电方法的流程示意图;
图12为本申请实施例提供的另一种无线充电方法的流程示意图;
图13为本申请实施例提供的另一种无线充电方法的流程示意图;
图14为本申请实施例提供的另一种无线充电方法的流程示意图;
图15为本申请实施例提供的一种无线充电设备的结构示意图;
图16为本申请实施例提供的另一种无线充电方法的流程示意图;
图17为本申请实施例提供的另一种无线充电系统的结构示意图;
图18为本申请实施例提供的另一种无线充电方法的流程示意图;
图19为本申请实施例提供的另一种无线充电方法的流程示意图;
图20为本申请实施例提供的另一种无线充电方法的流程示意图;
图21为本申请实施例提供的一种无线充电接收电路的组成示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述。在本申请中,“至少一个”是指一个或者多个,“多个”是指两个或两个以上。“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,同时存在A和B,单独存在B的情况,其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达,是指的这些项中的任意组合,包括单项(个)或复数项(个)的任意组合。例如,a,b或c中的至少一项(个),可以表示:a,b,c,a和b,a和c,b和c或a和b和c,其中a、b和c可以是单个,也可以是多个。
需要说明的是,本申请中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其他实施例或设计方案更优选或更具优势。确切而言,使用“示例性的”或者“例如” 等词旨在以具体方式呈现相关概念。
本申请实施例中出现的第一、第二等描述,仅作示意与区分描述对象之用,没有次序之分,也不表示本申请实施例中对设备个数的特别限定,不能构成对本申请实施例的任何限制。
首先对本申请实施例涉及到的名词进行解释:
异物检测(Foreign Object Detection,FOD),是指在无线充电过程中,有金属异物放置在线圈中间,会产生电涡流导致金属异物发热。异物检测可以采用功率差值的方法来判断,当发射端的功率减去接收端的功率的差值较大时,可以确定有金属异物。检测出有金属异物时,可以通过FOD保护防止金属异物在无线充电过程中发烫造成无线充电接收器和发射器的损坏。例如,FOD保护可以通过计算发射端与接收端之间的功率差值,当该差值超过一定阈值(例如,350mW),发射端将会中止无线充电传输,防止金属异物上产生过热。
振幅键控(Amplitude Shift Keying,ASK)通信冲突,是指在无线通信系统中,多个接收端向一个发射端通过ASK方式传输数据时,该多个接收端之间数据叠加,导致发射端无法有效读取接收端的数据。
本申请实施例提供一种无线充电方法,该无线充电方法可以应用于图1所示的无线充电系统中。如图1所示,该无线充电系统包括电源110、发射端设备120、接收端设备130。其中,发射端设备120包括发射电路,接收端设备130包括接收电路。电源110用于为发射端设备120中的发射电路提供电能,发射端设备120的发射电路产生一个高频的交变磁场,接收端设备130中的接收电路感应到该交变磁场,并将磁能转换为电能并提供给负载140。电源110一般由电池或者交流市电经整流得到的直流电提供,负载140可以为接收端设备130的充电控制芯片,控制电能给电池充电或者给系统供电。
示例性的,如图1所示,发射端设备120中的发射电路可以包括控制器121、ASK解调电路122、逆变电路123、匹配电路124和线圈125。逆变电路123用于将电源110提供的直流电能转换为交流电能,并提供给匹配电路124和线圈125。控制器121执行无线电能传输相关的算法和协议,以提供驱动信号和频移键控(Frequency Shift Keying,FSK)调制的通信信号给逆变电路123,并从ASK解调电路122读取从接收端设备发送来的通信信息。
接收端设备130中的接收电路可以包括控制器131、ASK调制电路132、整流电路133、匹配电路134、接收线圈135、FSK解调电路136和输出开关137。发射电路中的线圈125产生的交变磁场在接收线圈135上感应,产生交变电流,并通过匹配电路134的补偿,以提高无线充电系统传输功率和效率。整流电路133将该交流电能转换成直流电能,经过输出开关137后提供给负载140。控制器131执行无线电能传输相关的算法和协议,读取整流后的电压信息,控制输出开关137闭合或关断,从FSK解调电路136读取来自发射端设备的信息,并将数据发送给ASK调制电路132。
需要说明的是,图1所示的无线充电系统中的接收电路和发射电路可以包括比图1所示的更多或更少的电路模块,本申请实施例对于发射端设备中发射电路的具体电路结构,以及接收端设备中接收电路的具体电路结构并不进行限定,图1仅为示例性 说明。
图2为图1所示的无线充电系统进行无线充电时的线圈堆叠示意图。图2中的电子设备210可以为图1中的发射端设备,电子设备220可以为图1中的接收端设备。
示例性的,如图2所示,电子设备210包括线圈211和磁性材料212。在电子设备210为电子设备220进行无线充电时,线圈211位于电子设备210外壳的内侧面,并靠近于电子设备220的一侧设置,磁性材料212设置于线圈211的另一侧。电子设备220包括接收线圈221和磁性材料222。接收线圈221位于电子设备220外壳的内侧面,并靠近于电子设备210的一侧设置,磁性材料222设置于接收线圈221的另一侧。电子设备在线圈区域部分的外壳通常为非导电和/或非导磁材料。例如,上述磁性材料可以为磁屏蔽片。
示例性的,线圈211和接收线圈221可以为平面型线圈,通常由单股或多股导线绕制,或者由柔性电路板(Flexible Printed Circuit,FPC)/印制电路板(Printed Circuit Board,PCB)印制成的导电图案,一般为圆形或矩形。磁性材料212和222可以为高磁导率材料,例如铁氧体、纳米晶,其尺寸通常会覆盖住线圈的面积,以屏蔽磁场对电子设备内其他电路的干扰或避免磁场在金属上产生涡流而引起发热。电子设备210和电子设备220以两个线圈的中心对齐为坐标,通常线圈211和线圈221的间距在8mm以内,水平方向偏移在12mm以内,仍可以进行无线充电。
图3为一种无线充电的应用场景示意图,在该场景中,发射端设备上佩戴有支持无线充电的附属设备,例如,蓝牙键盘、智能皮套等附属设备。如图3中的(a)所示,平板电脑上佩戴有附属设备,该附属设备为蓝牙键盘,平板电脑可以为蓝牙键盘进行无线充电,此时平板电脑为图1中的发射端设备,蓝牙键盘为图1中的接收端设备。在平板电脑上佩戴有蓝牙键盘,且平板电脑的无线充电发射功能处于开启状态的情况下,蓝牙键盘的接收电路将接收平板电脑发射的无线电能,平板电脑将为蓝牙键盘充电。
在平板电脑的无线充电发射功能处于开启状态的情况下,如果用户想要平板电脑为其他电子设备(例如手机)充电时,如图3中的(b)所示,当用户将手机放到平板电脑上时(蓝牙键盘的线圈位于平板电脑的线圈和手机的线圈之间),如果蓝牙键盘的线圈上有磁性材料,结合图3中的(c)所示,平板电脑的线圈和蓝牙键盘的线圈之间发生电磁感应,可以实现平板电脑为蓝牙键盘充电。由于蓝牙键盘的线圈上有磁性材料,因此平板电脑发射的无线电能将在平板电脑的线圈和蓝牙键盘的线圈之间,手机的线圈无法感应到平板电脑的线圈发射的无线电能,因此,在不拆卸蓝牙键盘的情况下,平板电脑无法向手机充电。如果蓝牙键盘的线圈上无磁性材料,结合图3中的(d)所示,平板电脑的线圈发射的无线电能将通过蓝牙键盘的线圈传输至手机的线圈,即蓝牙键盘的线圈和手机的线圈都可以感应到电能。但是,蓝牙键盘和手机通过ASK方式向平板电脑发送数据时,蓝牙键盘和手机发送的数据之间将会叠加,导致平板电脑无法有效读取蓝牙键盘和手机发送的数据。即蓝牙键盘和手机发生ASK通信冲突,平板电脑将中止其无线发射功能。而且,蓝牙键盘和手机都接收平板电脑发射的无线电能时,将会引起FOD保护,平板电脑将中止无线充电发射功能。因此,在平板电脑上佩戴有蓝牙键盘时,需要将蓝牙键盘从平板电脑上拆下来以后,平板电脑才能给手 机充电,或者,接收来自其他电子设备的无线电能。也就是说,在电子设备佩戴具有无线充电功能的智能配件时,只有把智能配件摘除后,电子设备才能接收来自其他电子设备的无线电能或者对其他电子设备发射无线电能。然而摘除智能配件往往十分不便捷,用户体验不佳。
为了解决在更换无线充电发射端设备或接收端设备时,需要摘除智能配件,导致用户体验不佳的问题,本申请实施例提供了一种无线充电系统,该无线充电系统能够在更换无线充电发射端设备或接收端设备时,无需摘除智能配件,提升了用户体验。
本申请实施例提供一种无线充电系统,该无线充电系统包括第一电子设备、无线充电设备和第二电子设备,无线充电设备位于第一电子设备和第二电子设备之间,其中,无线充电设备为第一电子设备的附属设备且与第一电子设备物理连接,无线充电设备包括接收电路和外壳,接收电路包括接收线圈,接收线圈位于无线充电设备的外壳的内侧。例如,该无线充电设备的接收线圈与第一电子设备的线圈之间垂直方向的间距小于或等于第一阈值(例如,8mm),水平方向偏移小于或等于第二阈值(例如,12mm),以确保无线充电设备的接收线圈能够感应到第一电子设备的线圈发射的无线电能。
示例性的,上述第一电子设备和第二电子设备可以为手机、智能电话、平板电脑、桌面型、膝上型、手持计算机、笔记本电脑、个人数字助理(personal digital assistant,PDA)、移动电话、视频电话、电子书阅读器、动态影像专家压缩标准音频层面3(Moving Picture Experts Group Audio Layer III,MP3)、MP4、掌上游戏机、数码相机等设备。上述无线充电设备为第一电子设备的附属设备,且和第一电子设备物理连接,以给第一电子设备提供更多的扩展功能。该无线充电设备的内部有需要消耗电能应用电路。例如,无线充电设备可以为与第一电子设备配套使用的蓝牙键盘、智能保护套等附属设备。本申请实施例对第一电子设备、第二电子设备,以及无线充电设备的具体形态不作特殊限制。
示例性的,上述第一电子设备用于对无线充电设备充电,用于透过无线充电设备对第二电子设备充电,以及用于透过无线充电设备接收来自第二电子设备的电能。可以理解的,第一电子设备在对无线充电设备充电时,第二电子设备距离第一电子设备较远,第二电子设备不足以感应第一电子设备发射的无线电能。第一电子设备在为第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能时,无线充电设备未进行充电,第一电子设备可以透过无线充电设备对第二电子设备充电,或者,第一电子设备可以透过无线充电设备接收来自第二电子设备的电能。
需要说明的是,上述第一电子设备在为第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能时,上述第一电子设备的线圈与第二电子设备的线圈之间垂直方向的间距小于或等于第一阈值(例如,8mm),水平方向偏移小于或等于第二阈值(例如,12mm),以确保第二电子设备的线圈能够感应到第一电子设备的线圈发射的无线电能。
上述第一电子设备对第二电子设备充电,或接收来自第二电子设备的电能时,第一电子设备和第二电子设备之间的电磁场可以穿透无线充电设备。
示例性的,上述无线充电设备的接收线圈用于感应外部磁场,产生感应电流。一 种实现方式中,接收线圈和无线充电设备的外壳的内侧之间无磁性材料。该无线充电设备的外壳可以包括无线充电设备的靠近第一电子设备侧的外壳,和/或,无线充电设备的远离第一电子设备侧的外壳。接收线圈和无线充电设备的外壳的内侧之间无磁性材料时,第一电子设备和第二电子设备之间的电磁场可以穿透无线充电设备。该无线充电设备的外壳为非导电和/或非导磁材料。
另一种实现方式中,接收线圈和无线充电设备的外壳的内侧之间的磁性材料的面积小于预设阈值。该预设阈值能够使得第一电子设备和第二电子设备之间的电磁场能够穿透无线充电设备,而且,第二电子设备接收的来自第一电子设备的电能可以使得第二电子设备正常充电,并且,第一电子设备接收的来自第二电子设备的电能也可以使得第一电子设备正常充电。即接收线圈和无线充电设备的外壳的内侧之间的磁性材料的面积小于该预设阈值时,第一电子设备和第二电子设备之间的电磁场足够大,可以透过无线充电设备,实现第一电子设备和第二电子设备之间无线充电的正常进行。本申请实施例对于该预设阈值的具体取值并不进行限定,只要满足磁性材料的面积小于该预设阈值时,第一电子设备和第二电子设备之间的电磁场可以穿透无线充电设备,且可以正常进行充电即可。
本申请下述实施例仅以无线充电设备的接收线圈和无线充电设备的外壳的内侧之间无磁性材料为例进行说明。例如,无线充电设备的接收线圈为空心线圈,且该空心线圈上无磁性材料。
示例性的,在无线充电设备的线圈上无磁性材料,图4为图1所示的无线充电系统进行无线充电时的线圈堆叠示意图。图4中的第一电子设备2100为发射端设备,无线充电设备2200为第一电子设备2100的附属设备,且与第一电子设备2100物理连接。第一电子设备2100包括线圈2101和磁性材料2102,无线充电设备2200包括接收线圈2201。如图4所示,第一电子设备2100的线圈2101上有磁性材料2102,无线充电设备2200的接收线圈2201上无磁性材料。第一电子设备2100在为无线充电设备2200进行无线充电时,线圈2101产生的交变磁场可以被接收线圈2201感应到,无线充电设备2200内的接收电路可以将接收线圈2201感应的磁能转换为电能,实现为无线充电设备2200的负载供电或者为无线充电设备2200的电池充电。
示例性的,本申请实施例提供的无线充电系统,在第一电子设备对第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能(即第二电子设备对第一电子设备充电)时,无线充电设备的接收电路的无线充电接收功能处于关闭状态。例如,第一电子设备对第二电子设备充电,或者,第二电子设备对第一电子设备充电时,无线充电设备的接收电路中的ASK调制电路的调制功能处于关闭状态,且输出开关处于断开状态。
示例性的,如图5所示,为本申请实施例提供的一种无线充电系统的示意图。该无线充电系统包括第一电子设备2100、无线充电设备2200,以及第二电子设备2300,其中,无线充电设备2200为第一电子设备2100的附属设备且与第一电子设备2100物理连接。第一电子设备2100的线圈2101上有磁性材料2102,无线充电设备2200的线圈2201上无磁性材料,第二电子设备2300的线圈2301上有磁性材料2302。结合图3中的(b)所示的应用场景,该第一电子设备2100为平板电脑,无线充电设备 2200为佩戴在平板电脑上且具有无线充电功能的蓝牙键盘,第二电子设备2300为手机,以平板电脑为手机充电的场景为例。
如图5所示,由于无线充电设备2200(蓝牙键盘)的线圈2201上无磁性材料。因此,第一电子设备2100(平板电脑)的线圈2101发射的无线电能能够透过无线充电设备2200(蓝牙键盘)的线圈2201,透传至第二电子设备2300(手机),第二电子设备2300(手机)的线圈2301可以感应到该无线电能,通过第二电子设备2300(手机)中的接收电路可以将线圈2301感应的磁能转换为电能。即第一电子设备2100(平板电脑)和第二电子设备2300(手机)之间的电磁场可以穿透无线充电设备第二电子设备2300(手机)。
而且由于第一电子设备2100(平板电脑)对第二电子设备2300(手机)充电时,无线充电设备2200(蓝牙键盘)的接收电路中的输出开关处于关断状态,因此,第一电子设备2100(平板电脑)通过无线充电设备2200(蓝牙键盘)透传无线电能时,无线充电设备2200(蓝牙键盘)的损耗极小,不至于引起异物检测FOD保护。而且由于无线充电设备2200(蓝牙键盘)的接收电路中的ASK调制电路的调制功能处于关闭状态,因此,无线充电设备2200(蓝牙键盘)不会和第二电子设备2300(手机)发生ASK通信冲突。故在不拆卸无线充电设备2200(蓝牙键盘)的情况下,第一电子设备2100(平板电脑)可以为第二电子设备2300(手机)无线充电。即第一电子设备可以透过无线充电设备对第二电子设备充电。相应的,第一电子设备也可以透过无线充电设备接收来自第二电子设备的电能。
图6为本申请实施例提供的一种线圈的结构示意图。如图6所示,由于无线充电设备2200的线圈2201上无磁性材料,因此,第一电子设备2100的线圈2101发射的无线电能,能够透过无线充电设备2200的线圈2201,传到第二电子设备2300的线圈2301。而且由于第一电子设备2100对第二电子设备2300充电时,该无线充电设备的接收电路的无线充电接收功能处于关闭状态,因此能够在第一电子设备2100佩戴具有无线充电功能的附属设备(无线充电设备2200)的场景下,实现第一电子设备2100透过无线充电设备2200为第二电子设备2300充电,或者,第一电子设备2100透过无线充电设备2200接收来自第二电子设备2300的无线电能进行充电,而且不会引起FOD保护或ASK通信冲突。
结合上述图3至图6,如图7所示,本申请实施例提供一种无线充电方法,该无线充电方法应用于无线充电系统,该无线充电系统包括第一电子设备、无线充电设备和第二电子设备,无线充电设备位于第一电子设备和第二电子设备之间,其中,无线充电设备为第一电子设备的附属设备且与第一电子设备物理连接,无线充电设备包括接收电路和外壳,接收电路包括接收线圈,接收线圈位于外壳的内侧,接收线圈上无磁性材料。该无线充电设备可以为上述图4至图6所示的无线充电设备2200,在第一电子设备对第二电子设备充电,或第二电子设备对第一电子设备充电时,无线充电设备的接收电路的无线充电接收功能处于关闭状态,该方法可以包括步骤S701-S702。
S701、无线充电设备确定其有无线充电需求。
示例性的,无线充电设备确定其有无线充电需求可以包括:无线充电设备根据用户输入的指令或传感器的检测信息,确定无线充电设备有无线充电需求。例如,该用 户输入的指令可以是用户通过物理按键来给出指令,或者在无线充电设备的应用程序(application,App)上设置等操作指令。上述传感器可以是霍尔传感器、光学传感器等传感器。例如,可以根据平板电脑贴合蓝牙键盘的侧边加霍尔传感器,当传感器检测到蓝牙键盘为支架模式,确定蓝牙键盘有无线充电需求。
示例性的,无线充电设备确定其有无线充电需求还可以包括:无线充电设备接收来自第一电子设备的第一信息,并基于该第一信息确定无线充电设备有无线充电需求。该第一信息可以为约定的协议数据,用于指示无线充电设备有无线充电需求。可选的,在该实现方式中,上述步骤S701之前,第一电子设备先确定无线充电设备有无线充电需求,而且该第一电子设备未检测到其他电子设备时,第一电子设备向无线充电设备发送约定的协议数据,指示无线充电设备打开其接收电路的无线充电接收功能。
可以理解的,本申请实施例对于无线充电设备确定其有无线充电需求的具体方式并不进行限定,在此仅是示例性说明。
一种实现方式中,如图8所示的无线充电系统,该无线充电系统包括第一电子设备3100、无线充电设备3200和第二电子设备3300,无线充电设备3200位于第一电子设备3100和第二电子设备3300之间,其中,无线充电设备3200为第一电子设备3100的附属设备且与第一电子设备3100物理连接。无线充电设备3200的线圈3215上无磁性材料。无线充电设备3200的接收电路3210包括ASK调制电路3212和输出开关3219。结合图8所示,上述无线充电设备的接收电路的无线充电接收功能处于关闭状态,包括:图8中的无线充电设备3200的输出开关3219处于关断状态,且ASK调制电路3212的调制功能处于关闭状态。
示例性的,如图8所示,由于无线充电设备3200的线圈3215上无磁性材料,因此第一电子设备3100发出的无线电能能够通过无线充电设备3200的线圈3215,透传至第二电子设备3300的线圈3315。而且由于第一电子设备3100在为第二电子设备3300充电时,无线充电设备3200的输出开关3219处于关断状态,ASK调制电路3212的调制功能处于关闭状态。因此,第一电子设备3100在为第二电子设备3300充电时,虽然无线充电设备3200的线圈3215能够感应到无线电能,但是由于其接收电路3210中的输出开关3219处于关断状态,不会输出电流给负载,无线充电设备3200中只有控制器3211和整流电路3213存在较小的功耗(小于100mW),该功耗不足以引起FOD保护。而且ASK调制电路3212的调制功能处于关闭状态,因此,无线充电设备3200不会和第二电子设备3300发生ASK通信冲突。也就是说,第一电子设备3100为第二电子设备3300充电时,第一电子设备发射的无线电能能够通过第二电子设备的线圈透传至第二电子设备,而且不会引起FOD保护误动作或ASK通信冲突。即第一电子设备3100可以透过无线充电设备3200为第二电子设备3300充电。故在第一电子设备3100为第二电子设备3300进行无线充电时,无需将佩戴在第一电子设备3100上的无线充电设备3200从第一电子设备上拆卸下来,即可实现第一电子设备透过无线充电设备对第二电子设备充电,或者,第一电子设备透过无线充电设备接收来自第二电子设备的电能。
示例性的,结合图8所示,当第一电子设备3100为第二电子设备3300进行无线充电,或者,第二电子设备3300或无线充电器给第一电子设备3100进行无线充电时, 整个无线充电系统可以等效简化为如图8a所示。
示例性的,以第一电子设备3100为第二电子设备3300进行无线充电为例。如图8a所示,第一电子设备3100的发射电路3110可以等效为高频交流电源Vs、谐振电容C TX、线圈L TX以及通流路径上的等效电阻R TX。第二电子设备3300的接收电路3310可以等效为负载R Load、串联谐振电容C S_RX、串联谐振电容C d_RX、接收线圈L RX以及通流路径上的等效电阻R RX。无线充电设备3200的接收电路3210可以等效为负载R eq、串联谐振电容C S_CSR、串联谐振电容C d_CSR、接收线圈L CSR以及通流路径上的等效电阻R CSR。M TX_RX为线圈L TX与接收线圈L RX之间的互感,M TX_CSR为线圈L TX与接收线圈L CSR之间的互感,M RX_CSR为接收线圈L RX与接收线圈L CSR之间的互感。由于第一电子设备3100为第二电子设备3300进行无线充电时,无线充电设备3200的接收电路3210的无线充电接收功能处于关闭状态,因此R eq阻值非常大,可以忽略其对无线充电设备3200中线圈与电容的自谐振频率f CSR的影响。可以计算出无线充电设备3200中的自谐振频率为:
Figure PCTCN2020130596-appb-000001
当第一电子设备3100为第二电子设备3300无线充电时的工作频率f op小于f CSR时,无线充电设备3200中的接收线圈L CSR上感应的电流比线圈L TX上的电流超前一定的相位角(0~90°),无线充电设备3200中的接收线圈L CSR可以起到无线充电中继的功能,能提高第一电子设备3100向第二电子设备3300无线充电的传输效率。因此无线充电设备3200上的L CSR、C S_CSR、C d_CSR可以选择合适的参数,以满足f CSR大于第一电子设备3100为第二电子设备3300无线充电时的最大工作频率点f op_max,从而能够提高充电效率,增加传输距离和偏位能力。
另一种实现方式中,如图9所示的无线充电系统,该无线充电系统包括第一电子设备4100、无线充电设备4200和第二电子设备4300,无线充电设备4200位于第一电子设备4100和第二电子设备4300之间,其中,无线充电设备4200为第一电子设备4100的附属设备且与第一电子设备4100物理连接。无线充电设备4200的线圈4215上无磁性材料。无线充电设备4200的接收电路4210包括ASK调制电路4212和输出开关4219。接收电路4210还包括一个或多个第一开关4217、匹配电路4214和整流电路4213,线圈4215的两端与匹配电路4214的输入端连接,匹配电路4214的输出端连接整流电路4213的输入端,该一个或多个第一开关4217可以设置在线圈4215与匹配电路4214之间的位置,和/或,设置在匹配电路4214和整流电路4213的输入端之间的位置。图9中仅以第一开关为一个,该第一开关4217设置在匹配电路4214和整流电路4213的输入端之间的位置为例进行示意。结合图9所示,上述无线充电设备的接收电路的无线充电接收功能处于关闭状态,包括:图9中的第一开关4217处于关断状态。
示例性的,如图9所示,由于无线充电设备4200的线圈4215上无磁性材料,因此第一电子设备4100发出的无线电能能够通过无线充电设备4200的线圈4215,透传至第二电子设备4300的线圈4315。而且由于第一电子设备4100在为第二电子设备 4300充电时,无线充电设备4200的第一开关4217处于关断状态。因此,第一电子设备4100在为第二电子设备4300充电时,虽然无线充电设备4200的线圈3215能够感应到无线电能,但是由于其接收电路4210中的第一开关4217处于关断状态,无线充电设备4200的整流电路4213无法接收到电能而无法提供电能给负载,因此,无线充电设备4200的接收电路4210上消耗的电能微弱(<10mW),不会引起FOD保护误动作,故不影响第一电子设备4100的正常运行。而且,由于第一开关4217处于关断状态,因此ASK调整电路4212无法开启ASK调制功能,因此无线充电设备4200不会和第二电子设备4300发生ASK通信冲突。也就是说,第一电子设备4100为第二电子设备4300充电时,第一电子设备4100发射的无线电能能够通过无线充电设备4200的线圈4215透传至第二电子设备4300,而且不会引起FOD保护误动作或ASK通信冲突。即第一电子设备4100可以透过无线充电设备4200为第二电子设备4300充电。故在第一电子设备4100为第二电子设备4300进行无线充电时,无需将佩戴在第一电子设备4100上的无线充电设备4200从第一电子设备上拆卸下来,即可实现第一电子设备透过无线充电设备对第二电子设备充电,或者,第一电子设备透过无线充电设备接收来自第二电子设备的电能。
需要说明的是,图9所示的实现方式与图8所示的实现方式的区别在于,图9所示的无线充电设备4200的接收电路4210中在匹配电路4212与整流电流4213之间增加了第一开关,当第一电子设备4100为第二电子设备4300进行无线充电时,无线充电设备4200的接收电路4210中第一开关4217断开了与线圈4215的连接,因此无线充电设备4200的损耗比图8所示的无线充电设备3200的损耗更小,更不容易引起FOD保护误动作。
示例性的,上述图9中的第一开关可以有源开关或无源开关。例如,第一开关可以为一对背靠背的MOSFET、或电磁继电器等有源器件。再例如,第一开关也可以为按键、干簧管等无源器件。本申请实施例对于第一开关的具体形态并不进行限定。
S702、无线充电设备基于无线充电需求,打开其接收电路的无线充电接收功能。
示例性的,在无线充电设备确定其有无线充电需求的情况下,无线充电设备打开其接收电路的无线充电接收功能,接收来自第一电子设备的无线电能,并将电能提供给负载。
一种实现方式中,结合图8所示,在上述步骤S701中无线充电设备确定其有无线充电需求时,上述无线充电设备打开其接收电路的无线充电接收功能,包括:控制器3211和/或AP 3230接收指令,开启ASK调制电路3212的调制功能,并闭合输出开关3219,以提供电能给负载3220。
示例性的,结合图8所示,在无线充电设备3200确定其有无线充电需求时,第二电子设备的控制器3211和/或AP 3230启用ASK调制电路3212的调制功能,并回传配置信息等数据给第一电子设备3100,控制器3211和/或AP 3230闭合输出开关3219,输出电能给负载3220。
需要说明的是,在无线充电设备3200有电池或其他储能器件(例如超级电容器)的情况下,在无线充电设备3200的输出开关3219闭合之前,AP3230可以由电池或其他储能器件供电,控制器3211由整流电路3213的输出供电,因此,上述无线充电需 求可以传递给控制器3211和/或AP 3230,控制器3211和/或AP 3230开启ASK调制电路3212的调制功能,并闭合输出开关3219。在无线充电设备3200内部没有电池和储能器件的情况下,在无线充电设备3200的输出开关3219闭合之前,AP3230由于没有电能供应而不能工作,而控制器3211可以从整流电路3213的输出供电,因此上述无线充电需求可以传递给控制器3211,控制器3211开启ASK调制电路3212的调制功能并闭合输出开关3219。
另一种实现方式中,结合图9所示,在上述步骤S701中无线充电设备确定其有无线充电需求时,上述无线充电设备打开其接收电路的无线充电接收功能,包括:闭合第一开关4217,开启ASK调制电路4212的调制功能,并闭合输出开关4219,以提供电能给负载4220。
示例性的,当第一开关4217为按键时,上述闭合第一开关可以通过用户按下第一开关4217的按键。当第一开关4217为干簧管时,可以由贴近第一电子设备的磁铁或其他产生一定磁场强度的器件触发干簧管导通。
示例性的,当第一开关4217为有源器件时,且该第一开关4217的驱动电路的电源供应由无线充电设备4200的内部电池或其他储能器件提供,第一开关4217可以直接接收用户输入的指令或者传感器的检测信息来控制第一开关4217的状态。第一开关4217也可以由用户需求传递给AP4230后,由AP4230控制第一开关4217的状态。若无线充电设备4200没有内部电池或其他储能器件,或者,无线充电设备4200的内部电池或其他储能器件的电量过低,第一开关4217的驱动电路将因失去电源供应而无法导通,导致接收电路4210的无线充电接收功能无法开启。因此,为了避免该情况,第一开关4217的驱动电路可以由线圈4215经过单独一路整流电路整流为直流电能后供电。
例如,以第一开关包括第一电力开关和第二电力开关,第一电力开关和第二电力开关分别由两个驱动电路控制为例。如图10所示,第二电子设备5200包括接收电路5210、负载5220和AP5230。其中,接收电路5210包括控制器5211、ASK调制电路5212、整流电路5213、匹配电路5214、空心线圈5215、FSK解调电路5218、输出开关5219、辅助电源整流电路5240、稳压电路5250、传感器5260、第一电力开关5270及其第一驱动电路5271、第二电力开关5280及其第二驱动电路5281。
如图10所示,匹配电路5214由电容串并联组合,电容Cs的第一端连接空心线圈5215的第一端,电容Cd的第一端连接空心线圈的第二端,Cd的第二端连接Cs的第二端。Cs的第二端还连接到第二电力开关5280的第一端,Cd的第一端连接到第一电力开关5270第一端。第一电力开关5270的第二端连接到整流电路5213的一个输入端,第一电力开关5270受驱动电路5271控制。第二电力开关5280的第二端连接到整流电路5213的另一个输入端,第二电力开关5280受驱动电路5281控制。驱动电路5271和驱动电路5281由传感器5260控制。驱动电路5271、驱动电路5281和传感器5260由稳压电路5250(和/或无线充电设备内部电池,图10中未示出)提供电源。稳压电路5250由辅助电源整流电路5240供电。辅助电源整流电路5240将空心线圈上5215上感应的交流电转换为直流电,从而为驱动电路5271供电,使得在第二电子设备没有内部电池或其他储能器件,或者内部电池或其他储能器件的电量过低时,能够通过单 独一路整流电路整流后为第一开关的驱动电路供电,避免第一开关的驱动电路将因失去电源供应而无法导通,导致接收电路5210的无线充电接收功能无法开启的问题。
可选的,上述无线充电设备还可以包括可以与第一电子设备进行近距离通信的功能模块,例如蓝牙模块、无线保真(Wireless Fidelity,WiFi)模块、近场通信(Near Field Communication,NFC)模块,以实现无线充电设备的智能特性(例如,键盘输入,屏幕显示内容,无线充电设备低电量时自动启动第一电子设备为其充电等)。本申请实施例对于无线充电设备包括的具体模块并不进行限定,图8、图9和图10仅是示例性说明。实际应用中,无线充电设备可以包括比图8、图9和图10所示的更多或更少的电路模块。
示例性的,上述第一电子设备为无线充电设备建立无线充电后,第一电子设备和无线充电设备之间的带内通信除了传递控制协议和数据以外,还可以传递其他无线充电设备所需的控制指令和数据。例如,无线充电设备可以向第一电子设备发送蓝牙Mac地址进行蓝牙自动连接,无需用户手动设置配对。再例如,第一电子设备向无线充电设备发送WiFi密钥或蓝牙Mac地址,进行配对连接。再例如,第一电子设备向无线充电设备发送操作指令,比如开启LED灯。
可以理解的,在第一电子设备上佩戴有无线充电设备(该无线充电设备为第一电子设备的附属设备且与所述第一电子设备物理连接),且无线充电设备位于第一电子设备和第二电子设备之间的情况下,若第一电子设备的无线充电发射功能开启,如果不判断无线充电设备是否有无线充电需求,那么无线充电设备的接收电路将接收第一电子设备的无线电能,第一电子设备为无线充电设备进行无线充电。如果再将第二电子设备放置于第一电子设备上时,由于无线充电设备与第二电子设备之间的ASK冲突以及FOD保护,第一电子设备将中止无线充电发射功能。而本申请实施例通过确定无线充电设备是否有无线充电需求,只有在无线充电设备有无线充电需求时才会打开无线充电设备的接收电路的无线充电接收功能。而在第一电子设备对第二电子设备充电或者第二电子设备对第一电子设备充电时,即无线充电设备未进行无线充电时,无线充电设备的接收电路的无线充电接收功能处于关闭状态。也就是说,第一电子设备佩戴有无线充电设备时,如果用户想要为第二电子设备充电,用户将第二电子设备置于第一电子设备上,此时由于无线充电设备没有无线充电需求,因此无线充电设备的接收电路的无线充电接收功能处于关闭状态,第一电子设备发射的无线电能可以通过无线充电设备透传至第二电子设备,实现第一电子设备透过无线充电设备为第二电子设备充电,而且不会引起FOD保护和ASK通信冲突。因此能够在不拆卸无线充电设备的情况下,实现第一电子设备正向接收无线充电或反向对其他电子设备充电。
可选的,上述无线充电设备启用ASK调制电路的调制功能后,可以向第一电子设备发送配置等数据信息(例如,功率配置、设备类型、电压信息等数据),并在第一电子设备正确接收无线充电设备发送的数据信息时,第一电子设备为无线充电设备进行无线充电。如果第一电子设备没有正确接收无线充电设备发送的数据信息,第一电子设备可以中止其无线充电发射功能。例如,第二电子设备和无线充电设备均向第一电子设备发送数据信息时,由于第二电子设备和无线充电设备发生ASK通信冲突,因此第一电子设备无法正确接收无线充电设备发送的数据信息,第一电子设备将中止其 无线充电发射功能。
本申请实施例通过在第一电子设备对第二电子设备充电,或第二电子设备对第一电子设备充电时,无线充电设备的接收电路的无线充电接收功能处于关闭状态,并且只有在无线充电设备确定其有无线充电需求时,才会打开其接收电路的无线充电接收功能。而且,无线充电设备的线圈上无磁性材料,从而使得第一电子设备对第二电子设备充电,或第二电子设备对第一电子设备充电时,不需要将无线充电设备从第一电子设备上拆卸下来,即可实现第一电子设备透过无线充电设备为其他电子设备充电,或者,第一电子设备透过无线充电设备接收其他电子设备的无线电能进行充电,而且不引起FOD保护误动作和ASK通信冲突。因此,本申请实施例既能够实现第一电子设备为无线充电设备充电,也能够实现第一电子设备透过无线充电设备对第二电子设备充电,或者,第一电子设备透过无线充电设备接收来自第二电子设备的电能。从而无需摘除第一电子设备上佩戴的无线充电设备,即可实现第一电子设备正向接收无线充电或反向对其他电子设备充电。
可选的,本申请实施例还提供一种无线充电方法,如图11所示,在上述步骤S702之后还可以包括步骤S703-S705。
S703、当无线充电设备充电完成时,无线充电设备向第一电子设备发送第二信息。
该第二信息用于指示无线充电设备充电完成。该第二信息可以为充电完成指示信息。
示例性的,无线充电设备充电完成以后,可以向第一电子设备发射指示其充电完成的第二信息。例如,结合图8所示,无线充电设备3200(无线充电设备)充电完成后,可以通过ASK方式向第一电子设备3100发送指示无线充电设备3200充电完成的第二信息。
S704、第一电子设备接收第二信息。
S705、第一电子设备基于第二信息,中止第一电子设备的无线充电发射功能。
示例性的,第一电子设备获知无线充电设备充电完成以后,可以将其无线充电发射功能关闭。例如,结合图8所示,第一电子设备3100的无线充电发射功能关闭以后,无线充电设备3200(无线充电设备)的接收电路3210中的线圈3215无法接收无线电能,因此无线充电设备3200的接收电路3210的无线接收功能处于关闭状态。如果想再次开启无线充电设备3200的接收电路3210的无线接收功能,需要通过步骤S701确定无线充电设备3200是否有无线充电需求。
可选的,本申请实施例还提供一种无线充电方法,如图12所示,在上述步骤S702之后还可以包括步骤S706-S707。
S706、当无线充电设备充电完成时,无线充电设备关闭其接收电路的无线充电接收功能。
示例性的,结合图8所示,无线充电设备充电完成时,关闭其接收电路的无线充电接收功能,包括:无线充电设备3200关断输出开关3219,并关闭ASK调制电路3212的调制功能。
示例性的,结合图9所示,无线充电设备充电完成时,关闭其接收电路的无线充电接收功能,包括:无线充电设备4200关断第一开关4217。
S707、第一电子设备在预设时长内未正确接收到接收端设备发送的数据时,第一电子设备中止其无线充电发射功能。
示例性的,该接收端设备包括无线充电设备。上述第一电子设备在预设时长内未正确接收到接收端设备发送的数据,包括:接收端设备关闭其ASK通信电路的调制功能,导致第一电子设备无法正确接收到接收端设备发送的数据。例如,无线充电设备充电完成后,无线充电设备关闭其ASK调制电路的调制功能,即无线充电设备不会向第一电子设备发送数据,那么第一电子设备将无法正确接收到接收端设备发送的数据,第一电子设备可以关闭其无线充电发射功能。
可选的,第一电子设备在预设时长内未正确接收到接收端设备发送的数据,也可以包括:接收端设备之间发生ASK通信冲突,导致第一电子设备无法正确接收到接收端发送的数据。例如,无线充电设备和其他电子设备同时通过ASK方式向第一电子设备发送数据时,无线充电设备和其他电子设备发送的数据叠加,导致第一电子设备无法正确接收无线充电设备和其他电子设备发送的数据,第一电子设备可以关闭其无线充电发射功能。
可选的,在第一电子设备的电量小于预设阈值时,第一电子设备可以中止其无线充电发射功能。
可选的,本申请实施例还提供一种无线充电方法,如图13所示,在上述步骤S701之前还可以包括步骤S708。
S708、第一电子设备确定有待充电设备时,启动其无线充电发射功能。
示例性的,第一电子设备可以在检测到有待充电设备时,再启动其无线充电发射功能,从而避免第一电子设备上不必要的电能损耗。
示例性的,第一电子设备确定有待充电设备可以包括:第一电子设备根据用户输入的指令确定有待充电设备,或者,第一电子设备根据传感器的检测信息确定有待充电设备。例如,第一电子设备接收用户在第一电子设备的应用程序上输入的给蓝牙键盘或第二电子设备充电的指令(例如,用户点击蓝牙键盘充电的图标或用户点击第二电子设备充电的图标),第一电子设备确定有待充电设备。再例如,第一电子设备可以通过霍尔传感器检测蓝牙键盘为支架模式,确定有待充电设备。本申请实施例对于第一电子设备确定有待充电设备的具体实施例方式并不进行限定。
可选的,第一电子设备也可以周期性的启动发射功能,待待充电设备放置在第一电子设备上时,待充电设备向第一电子设备发送数据,第一电子设备将间隔性的启动发射功能切换为连续模式。即第一电子设备持续性的发射电能。
可选的,第一电子设备还可以在无线充电设备的电量低于预设阈值时,启动其无线充电发射功能。例如,无线充电设备的电量低于预设阈值时,无线充电设备通过蓝牙模块向第一电子设备发送指示信息,第一电子设备基于该指示信息启动其无线充电发射功能。
可选的,本申请实施例还提供一种无线充电方法,如图14所示,在上述步骤S701之前还可以包括步骤S709-S710。
S709、第一电子设备确定无线充电设备有无线充电需求,且第一电子设备未检测到第二电子设备。
示例性的,第一电子设备确定无线充电设备有无线充电需求可以包括:第一电子设备接收用户输入的指令确定无线充电设备有无线充电需求;或者,第一电子设备基于传感器的检测信息确定无线充电设备有无线充电需求。例如,第一电子设备可以接收用户在其上输入的指令,确定无线充电设备有无线充电需求。再例如,第一电子设备可以通过霍尔传感器检测蓝牙键盘为支架模式,确定蓝牙键盘有无线充电需求。
示例性的,第一电子设备确定无线充电设备有无线充电需求,还可以包括:第一电子设备接收无线充电设备的充电请求,确定无线充电设备有无线充电需求。例如,无线充电设备的电量低于预设阈值时,无线充电设备向第一电子设备发送充电请求,第一电子设备接收该充电请求后,确定无线充电设备有无线充电需求。
示例性的,第一电子设备未检测到第二电子设备,可以包括:第一电子设备确定其无线充电发射功能的状态处于未启动状态;或者,第一电子设备确定其无线充电发射功能处于未启动状态后,第一电子设备启动其无线充电发射功能,并且第一电子设备在预设时长内未检测到第二电子设备的ASK信号,那么第一电子设备可以确定其未检测到第二电子设备。
S710、第一电子设备向无线充电设备发送第一信息。
示例性的,第一电子设备可以启用FSK向无线充电设备发送第一信息。该第一信息可以为约定好的协议数据,用于指示无线充电设备有无线充电需求。
示例性的,无线充电设备接收来自第一电子设备的第一信息后,开启其接收电路的无线接收功能,为负载提供电能。
可以理解的,如果第一电子设备在为其他电子设备充电时,无线充电设备确定其有无线充电需求,那么无线充电设备将打开其接收电路的无线充电接收功能。但是,无线充电设备与其他电子设备将发生ASK通信冲突和FOD保护,因此该无线充电设备的强行加入将导致无线充电中断。而本实施通过步骤S709,在第一电子设备上增加对无线充电设备的无线充电需求的判断,在第一电子设备确定无线充电设备有无线充电需求,且第一电子设备未检测到其他电子设备的情况下,才会向无线充电设备发送第一信息,无线充电设备接收第一信息后开启其接收电路的无线充电接收功能,从而避免了无线充电设备强行加入而导致无线充电中断的问题。
本申请实施例还提供一种无线充电设备,如图15所示,该无线充电设备8200包括接收电路8210和负载8230,接收电路8210用于为负载8230提供电能。接收电路8210包括蓝牙模块8211、稳压电路8212、整流电路8213、匹配电路8214、线圈8215和第二开关8216。第二开关8216的一端连接整流电路8213的输出端,第二开关8216的另一端用于连接负载。无线充电设备的线圈位于无线充电设备的外壳内侧,无线充电设备的线圈上无磁性材料。在第一电子设备对第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能时,第二开关处于关断状态。该第二开关8216可以为有源开关,也可以为无源开关,关于该第二开关的相关描述可以参数上述实施例中的第一开关,在此不再赘述。
本申请实施例还提供一种无线充电方法,应用于图15所示的无线充电设备8200,该无线充电设备和第一电子设备配套使用,如图16所示,该无线充电方法包括步骤S1601-S1606。
S1601、第一电子设备确定无线充电设备有无线充电需求。
可以理解的,上述步骤S1601的具体实现方式可以参考步骤S709,在此不再赘述。
S1602、第一电子设备启动其无线充电发射功能。
S1603、无线充电设备接收来自第一电子设备的无线电能。
示例性的,如图17所示的无线充电系统,无线充电设备8200位于第一电子设备8100和第二电子设备8300之间。在第一电子设备8100启动其无线充电发射功能后,无线充电设备8200的接收电路8210中的线圈8215可以感应到第一电子设备8100的线圈8115产生的无线电能,通过匹配电路8214、整流电路8213、稳压电路8212可以为蓝牙模块8211供电。
可以理解的,当图17所示的第一电子设备8100为第二电子设备8300充电时,虽然无线充电设备8200的线圈8215能够感应到无线电能,但是由于无线充电设备8200中的第二开关8216处于关断状态,不会输出电流给负载8230。故无线充电设备8200中只有蓝牙模块8211在耗电,而蓝牙模块8211的功耗极小,因此,不会引起FOD保护。而且由于无线充电设备8200的线圈8215上无磁性材料,因此第一电子设备8100发出的无线电能能够通过无线充电设备8200的线圈8215,透传至第二电子设备8300的线圈8315,从而能够在不拆卸无线充电设备8200的情况下,实现第一电子设备8100透过无线充电设备8200为第二电子设备8300充电。
S1604、无线充电设备的蓝牙模块与第一电子设备配对。
示例性的,结合图17所示,无线充电设备8200的蓝牙模块8211可以与第一电子设备之间进行配对连接。
S1605、在无线充电设备的蓝牙模块与第一电子设备配对连接成功的情况下,蓝牙模块与第一电子设备之间通过蓝牙通信交互数据。
示例性的,结合图17所示,在无线充电设备8200的蓝牙模块8211与第一电子设备8100配对连接成功的情况下,蓝牙模块8211与第一电子设备8100之间通过带外通信的方式交互数据,实现无线充电闭环控制。
示例性的,上述蓝牙模块与第一电子设备之间通过蓝牙通信交互数据,可以包括:蓝牙模块接收来自第一电子设备的第一指令,该第一指令用于指示蓝牙模块打开其接收电路的无线充电接收功能。
S1606、无线充电设备的蓝牙模块打开接收电路的无线充电接收功能。
示例性的,结合图17所示,无线充电设备的蓝牙模块打开接收电路的无线充电接收功能,包括:无线充电设备8200的蓝牙模块8211闭合第二开关8216,使得无线充电设备8200的接收电路8210能够将其感应的无线电能提供给负载8230。
可选的,上述步骤S1606之后,若无线充电设备向第一电子设备发送指示其充电完成的指示信息,或者,向第一电子设备发送请求停止无线充电的信息,第一电子设备接收后,可以中止其无线充电发射功能。可选的,上述步骤S1606之后,若第一电子设备在预设时长内未正确接收到接收端设备发送的数据,第一电子设备也可以中止其无线充电发射功能。
可以理解的,本实施例与前述实施例不同的是,本实施例通过带外通信的方式进行功率传输控制,在第一电子设备和无线充电设备的蓝牙模块之间配对连接成功的情 况下,才会开启无线充电设备的接收电路的无线充电接收功能。而在第一电子设备对第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能时,即无线充电设备未进行无线充电时,由于第二开关处于关断状态,因此,无线充电设备的接收电路不会输出电流给负载,不会引起FOD保护误动作。而且由于无线充电设备的线圈上无磁性材料,因此第一电子设备发出的无线电能能够通过无线充电设备的线圈,透传至其他电子设备,从而无需将无线充电设备从第一电子设备上拆卸下来,即可实现第一电子设备透过无线充电设备对第二电子设备充电,或者,第一电子设备透过无线充电设备接收来自第二电子设备的电能。可以理解的,本实施例中的无线充电设备的接收电路中不包括ASK调制电路,因此,在第一电子设备对第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能时,无线充电设备和第二电子设备之间不会发生ASK通信冲突。
示例性的,本申请实施例还提供一种无线充电方法,该方法中的无线充电设备的电路结构如图8中的无线充电设备3200所示,该无线充电设备的线圈3215上无磁性材料,在该无线充电设备未进行充电时(第一电子设备对第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能时),输出开关3219和ASK调制电路3212的调制功能处于关闭状态。如图18所示,该方法包括步骤S1801-S1813。
S1801、第一电子设备确定待充电设备有无线充电需求。
示例性的,该待充电设备可以为与第一电子设备配套使用的无线充电设备,也可以为其他电子设备,例如,第二电子设备。
S1802、第一电子设备启动其无线充电发射功能。
示例性的,第一电子设备在确定待充电设备有无线充电需求时,启动其无线充电发射功能。
可以理解的,上述步骤S1801-S1802的具体实现方式可以参考前述步骤的实现方式,在此不再赘述。
S1803、第一电子设备检测待充电设备。
示例性的,第一电子设备检测待充电设备包括:第一电子设备检测待充电设备的设备类型、身份识别、电流变化等参数。
在第一电子设备未检测到待充电设备时,第一电子设备中止其无线充电发射功能;在待充电设备为无线充电设备时,继续执行步骤S1804-S1809;在待充电设备为第二电子设备时,继续执行步骤S1810-S1813。
S1804、无线充电设备确定其有无线充电需求。
可以理解的,无线充电设备可以根据用户输入的指令以及传感器的检测信息确定其是否有无线充电需求,在无线充电设备确定其有无线充电需求的情况下,继续执行步骤S1805。
S1805、无线充电设备启用ASK调制电路的调制功能,闭合输出开关,并向第一电子设备发送第一数据信息。
示例性的,第一数据信息包括:配置信息、充电电压(例如,控制误差数据包(Control error Packet,CEP))、充电功率(例如,接收功率(Received Power,RP))等信息。配置信息包括设备类型、功率等级、ID类型、耦合强度等信息。
示例性的,无线充电设备启用ASK调制电路的调制功能后,可以向第一电子设备发送功率等级、设备类型、ID类型、耦合强度等配置信息。第一电子设备向无线充电设备开始充电后,无线充电设备可以向第一电子设备发送充电电压(例如,CEP)以及充电功率(例如,RP)等信息。
示例性的,无线充电设备闭合输出开关,从而使得无线充电设备的接收电路能够输出电能给负载。
S1806、第一电子设备确定是否正确接收来自无线充电设备的第一数据信息。
示例性的,第一电子设备未正确接收来自无线充电设备的第一数据信息,包括:无线充电设备与其他设备之间发生ASK通信冲突,导致第一电子设备未正确接收来自无线充电设备的第一数据信息。或者,无线充电设备关闭其ASK调制电路,导致第一电子设备未正确接收来自无线充电设备的第一数据信息。
若第一电子设备正确接收来自无线充电设备的第一数据信息,继续执行步骤S1807-S1808;若第一电子设备未正确接收来自无线充电设备的第一数据信息,继续执行步骤S1809。
S1807、第一电子设备为无线充电设备充电。
示例性的,第一电子设备为无线充电设备充电的过程中,第一电子设备可以持续通过步骤S1806判断第一电子设备确定是否正确接收来自无线充电设备的第一数据信息。
(可选的)S1808、第一电子设备接收来自无线充电设备的第二信息。
该第二信息用于指示无线充电设备充电完成。该第二信息可以为充电完成指示信息。
示例性的,在步骤S1806-S1807执行过程中,若第一电子设备接收来自无线充电设备的指示无线充电设备充电完成的第二信息,第一电子设备继续执行步骤S1809,中止其无线充电发射功能。
S1809、第一电子设备中止其无线充电发射功能。
示例性的,第一电子设备未正确接收来自无线充电设备的第一数据信息,或者,第一电子设备接收来自无线充电设备的充电完成指示信息时,第一电子设备中止其无线充电发射功能。
S1810、第一电子设备确定是否正确接收来自第二电子设备的第二数据信息。
上述第二数据信息包括的内容可以参考前述第一数据信息,在此不再赘述。
示例性的,第一电子设备未正确接收来自第二电子设备的第二数据信息,包括:第二电子设备与其他设备之间发生ASK通信冲突,导致第一电子设备未正确接收来自第二电子设备的第二数据信息。或者,第二电子设备关闭其ASK调制电路,导致第一电子设备未正确接收来自第二电子设备的第二数据信息。
若第一电子设备正确接收来自第二电子设备的第二数据信息,继续执行步骤S1811-S1812;若第一电子设备未正确接收来自第二电子设备的第二数据信息,继续执行步骤S1813。
S1811、第一电子设备为第二电子设备充电。
示例性的,第一电子设备为第二电子设备充电的过程中,第一电子设备可以持续 通过步骤S1810判断第一电子设备确定是否正确接收来自第二电子设备的第二数据信息。
(可选的)S1812、第一电子设备接收来自第二电子设备的第三信息。
该第三信息用于指示第二电子设备充电完成。该第三信息可以为充电完成指示信息。
示例性的,若第一电子设备接收来自第二电子设备的指示无线充电设备充电完成的第三信息,第一电子设备继续执行步骤S1813,中止其无线充电发射功能。
需要说明的是,上述第一电子设备为第二电子设备充电过程中,由于与第一电子设备配套使用的无线充电设备未进行无线充电,因此,该无线充电设备的接收电路中的输出开关和ASK调制电路的调制功能一直处于关闭状态。而且,无线充电设备的线圈上无磁性材料,从而在第一电子设备为第二电子设备充电时,无线电能能够通过无线充电设备透传至第二电子设备,而且不引起FOD保护误动作和ASK通信冲突。
S1813、第一电子设备中止其无线充电发射功能。
需要说明的是,本申请实施例对上述步骤S1801-S1813的具体执行先后顺序并不进行限定,图18仅是示例性的示出了一种执行顺序的流程图。
本申请实施例提供的无线充电方法,通过在第一电子设备对第二电子设备充电或者第二电子设备对第一电子设备充电时,即无线充电设备未进行无线充电时,无线充电设备的输出开关和ASK调制电路的调制功能处于关闭状态,并且只有在无线充电设备确定其有无线充电需求时,才会打开输出开关和ASK调制电路的调制功能。而且,无线充电设备的线圈上无磁性材料,从而使得第一电子设备发射的无线电能能够通过无线充电设备的线圈透传至其他电子设备。因此,无需将无线充电设备从第一电子设备上拆卸下来,即可实现第一电子设备为其他电子设备充电,或者,第一电子设备接收其他电子设备的无线电能进行充电,而且不引起FOD保护误动作和ASK通信冲突。
示例性的,本申请实施例还提供一种无线充电方法,该方法中的无线充电设备的电路结构如图9中的无线充电设备4200所示,该无线充电设备的线圈4215上无磁性材料,在该无线充电设备未进行充电时(第一电子设备对第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能时),第一开关4217处于关断状态。如图19所示,该方法包括步骤S1901-S1914。
S1901、第一电子设备确定待充电设备有无线充电需求。
S1902、第一电子设备启动其无线充电发射功能。
可以理解的,上述步骤S1901-S1902的具体实现方式可以参考前述步骤的实现方式,在此不再赘述。
S1903、第一电子设备检测待充电设备。
在第一电子设备未检测到待充电设备时,第一电子设备中止其无线充电发射功能;在待充电设备为无线充电设备时,继续执行步骤S1904-S1910;在待充电设备为第二电子设备时,继续执行步骤S1911-S1914。
S1904、无线充电设备确定其有无线充电需求。
S1905、无线充电设备闭合第一开关。
示例性的,结合图9所示,无线充电设备闭合第一开关后,无线充电设备内的线 圈感应到电流后,可以提供电能给接收电路中的电路模块。
S1906、无线充电设备启用ASK调制电路的调制功能,闭合输出开关,并向第一电子设备发送第一数据信息。
S1907、第一电子设备确定是否正确接收来自无线充电设备的第一数据信息。
可以理解的,上述步骤S1906-S1907的具体实现方式可以参考步骤S1805-S1806,在此不再赘述。
若第一电子设备正确接收来自无线充电设备的第一数据信息,继续执行步骤S1908-S1909;若第一电子设备未正确接收来自无线充电设备的第一数据信息,继续执行步骤S1910。
S1908、第一电子设备为无线充电设备充电。
示例性的,第一电子设备为无线充电设备充电的过程中,第一电子设备可以持续通过步骤S1907判断第一电子设备确定是否正确接收来自无线充电设备的第一数据信息。
(可选的)S1909、第一电子设备接收来自无线充电设备的第二信息。
该第二信息用于指示无线充电设备充电完成。该第二信息可以为充电完成指示信息。
示例性的,在步骤S1907-S1908执行过程中,若第一电子设备接收来自无线充电设备发送的指示无线充电设备充电完成的第二信息,第一电子设备继续执行步骤S1910,中止其无线充电发射功能。
S1910、第一电子设备中止其无线充电发射功能。
示例性的,第一电子设备未正确接收来自无线充电设备的第一数据信息,或者,第一电子设备接收来自无线充电设备的充电完成指示信息时,第一电子设备中止其无线充电发射功能。
S1911、第一电子设备确定是否正确接收来自第二电子设备的第二数据信息。
若第一电子设备正确接收来自第二电子设备的第二数据信息,继续执行步骤S1912-S1913;若第一电子设备未正确接收来自第二电子设备的第二数据信息,继续执行步骤S1914。
S1912、第一电子设备为第二电子设备充电。
示例性的,第一电子设备为第二电子设备充电的过程中,第一电子设备可以持续通过步骤S1911判断第一电子设备确定是否正确接收来自第二电子设备的第二数据信息。
(可选的)S1913、第一电子设备接收来自第二电子设备的第三信息。
该第三信息用于指示第二电子设备充电完成。该第三信息可以为充电完成指示信息。
示例性的,若第一电子设备接收来自第二电子设备的指示无线充电设备充电完成的第三信息,第一电子设备继续执行步骤S1914,中止其无线充电发射功能。
可以理解的,上述步骤S1911-S1913的具体实现方式可以参考步骤S1810-S1812,在此不再赘述。
需要说明的是,上述第一电子设备为第二电子设备充电过程中,由于与第一电子 设备配套使用的无线充电设备未进行无线充电,该无线充电设备的接收电路中的第一开关一直处于关闭状态。而且,无线充电设备的线圈上无磁性材料,从而在第一电子设备为第二电子设备充电时,无线电能能够通过无线充电设备透传至第二电子设备,而且不引起FOD保护误动作和ASK通信冲突。
S1914、第一电子设备中止其无线充电发射功能。
需要说明的是,本申请实施例对上述步骤S1901-S1914的具体执行先后顺序并不进行限定,图19仅是示例性的示出了一种执行顺序的流程图。
本申请实施例提供的无线充电方法,通过在第一电子设备对第二电子设备充电或者第二电子设备对第一电子设备充电时,即无线充电设备未进行无线充电时,无线充电设备的第一开关处于关断状态,并且只有在无线充电设备确定其有无线充电需求时,才会打开第一开关,以及输出开关和ASK调制电路的调制功能。而且,无线充电设备的线圈上无磁性材料,从而使得第一电子设备发射的无线电能能够通过无线充电设备的线圈透传至其他电子设备。因此,无需将无线充电设备从第一电子设备上拆卸下来,即可实现第一电子设备为其他电子设备充电,或者,第一电子设备接收其他电子设备的无线电能进行充电,而且不引起FOD保护误动作和ASK通信冲突。
示例性的,本申请实施例还提供一种无线充电方法,该方法中的无线充电设备的电路结构如图8中的无线充电设备3200所示,该无线充电设备的线圈3215上无磁性材料,在该无线充电设备未进行充电时(第一电子设备对第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能),输出开关3219和ASK调制电路3212的调制功能处于关闭状态。如图20所示,该方法包括步骤S2001-S2014。
S2001、第一电子设备确定待充电设备有无线充电需求。
S2002、第一电子设备启动其无线充电发射功能。
可以理解的,上述步骤S2001-S2002的具体实现方式可以参考前述步骤的实现方式,在此不再赘述。
S2003、第一电子设备检测待充电设备。
在第一电子设备未检测到待充电设备时,第一电子设备中止其无线充电发射功能;在待充电设备为无线充电设备时,继续执行步骤S2004-S2010;在待充电设备为第二电子设备时,继续执行步骤S2011-S2014。
S2004、第一电子设备确定无线充电设备有无线充电需求,且第一电子设备未检测到其他电子设备。
S2005、第一电子设备向无线充电设备发送第一信息。
示例性的,第一电子设备可以启用FSK向无线充电设备发送第一信息。该第一信息可以为约定好的协议数据,用于指示无线充电设备有无线充电需求。
S2006、无线充电设备接收并识别第一信息,启用ASK调制电路的调制功能,闭合输出开关,并向第一电子设备发送第一配置信息和第一充电请求。
S2007、第一电子设备确定是否正确接收来自无线充电设备的第一数据信息。
可以理解的,上述步骤S2007的具体实现方式可以参考步骤S1806,在此不再赘述。
若第一电子设备正确接收来自无线充电设备的第一数据信息,继续执行步骤 S2008;若第一电子设备未正确接收来自无线充电设备的第一数据信息,继续执行步骤S2014。
S2008、第一电子设备为无线充电设备充电。
(可选的)S2009、第一电子设备接收来自无线充电设备的第二信息。
该第二信息用于指示无线充电设备充电完成。该第二信息可以为充电完成指示信息。
示例性的,在步骤S2007-S2008执行过程中,若第一电子设备接收来自无线充电设备发送的指示无线充电设备充电完成的第二信息,第一电子设备继续执行步骤S2010,中止其无线充电发射功能。
S2010、第一电子设备中止其无线充电发射功能。
示例性的,第一电子设备未正确接收来自无线充电设备的第一数据信息,或者,第一电子设备接收来自无线充电设备发送的充电完成指示信息时,第一电子设备中止其无线充电发射功能。
S2011、第一电子设备确定是否正确接收来自第二电子设备的第二数据信息。
若第一电子设备正确接收来自第二电子设备的第二数据信息,继续执行步骤S2012-S2013;若第一电子设备未正确接收来自第二电子设备的第二数据信息,继续执行步骤S2014。
S2012、第一电子设备为第二电子设备充电。
示例性的,第一电子设备为第二电子设备充电的过程中,第一电子设备可以持续通过步骤S2011判断第一电子设备确定是否正确接收来自第二电子设备的第二数据信息。
(可选的)S2013、第一电子设备接收来自第二电子设备的第三信息。
该第三信息用于指示第二电子设备充电完成。该第三信息可以为充电完成指示信息。
示例性的,若第一电子设备接收来自第二电子设备的指示无线充电设备充电完成的第三信息,第一电子设备继续执行步骤S2014,中止其无线充电发射功能。
可以理解的,上述步骤S2011-S2013的具体实现方式可以参考步骤S1810-S1812,在此不再赘述。
需要说明的是,上述第一电子设备为第二电子设备充电过程中,由于与第一电子设备配套使用的无线充电设备未进行无线充电,该无线充电设备的接收电路中的输出开关和ASK调制电路的调制功能一直处于关闭状态。而且,无线充电设备的线圈上无磁性材料,从而在第一电子设备为第二电子设备充电时,无线电能能够通过无线充电设备透传至第二电子设备,而且不引起FOD保护误动作和ASK通信冲突。
S2014、第一电子设备中止其无线充电发射功能。
需要说明的是,本申请实施例对上述步骤S2001-S2014的具体执行先后顺序并不进行限定,图20仅是示例性的示出了一种执行顺序的流程图。
本申请实施例提供的无线充电方法,通过在在第一电子设备对第二电子设备充电或者第一电子设备接收来自第二电子设备的电能时,即无线充电设备未进行无线充电时,无线充电设备的输出开关和ASK调制电路的调制功能处于关闭状态,并且只有在 无线充电设备确定其有无线充电需求时,才会打开输出开关和ASK调制电路的调制功能。而且,无线充电设备的线圈上无磁性材料,从而使得第一电子设备发射的无线电能能够通过无线充电设备的线圈透传至其他电子设备。因此,无需将无线充电设备从第一电子设备上拆卸下来,即可实现第一电子设备为其他电子设备充电,或者,第一电子设备接收其他电子设备的无线电能进行充电,而且不引起FOD保护误动作和ASK通信冲突。
图21为本申请实施例提供的一种无线充电接收电路21000,该无线充电接收电路21000可以应用于无线充电设备,无线充电设备为第一电子设备的附属设备且与第一电子设备物理连接。该无线充电接收电路21000包括控制器21001和线圈21002,线圈21002位于无线充电设备的外壳内侧,线圈21002和无线充电设备的外壳的内侧之间无磁性材料,或者,线圈21002和无线充电设备的外壳的内侧之间的磁性材料的面积小于预设阈值;在第一电子设备对第二电子设备充电,或者,第一电子设备接收来自第二电子设备的电能时,无线充电接收电路21000的无线充电接收功能处于关闭状态。其中,线圈21002,用于感应外部磁场,产生感应电流。控制器21001,用于确定无线充电设备有无线充电需求。控制器21001,还用于基于无线充电需求,打开接收电路的无线充电接收功能。
示例性的,上述无线充电接收电路21000还可以包括输出开关和ASK调制电路,上述控制器具体用于基于无线充电需求,打开该ASK调制电路的调制功能,并闭合该输出开关。
可选的,上述无线充电接收电路21000还可以包括一个或多个第一开关、匹配电路和整流电路,线圈21002的两端与匹配电路的输入端连接,匹配电路的输出端连接整流电路的输入端,一个或多个第一开关可以设置在线圈21002与匹配电路之间的位置,和/或,匹配电路和整流电路的输入端之间的位置。
示例性的,上述控制器具体还用于基于无线充电需求,闭合上述一个或多个第一开关,打开ASK调制电路的调制功能,并闭合输出开关。
可以理解的,上述控制器21001可以用于执行上述图7、图11、图12、图13、图14、图16、图18、图19、图20中任一实施例中的无线充电方法。
本申请实施例还提供一种无线充电装置,该无线充电装置包括充电管理芯片和上述无线充电接收电路21000。
本申请实施例还提供一种无线充电系统,该无线充电系统包括第一电子设备、无线充电设备和第二电子设备,无线充电设备位于第一电子设备和第二电子设备之间,其中,无线充电设备为第一电子设备的附属设备且与第一电子设备物理连接;第一电子设备用于对无线充电设备充电,用于透过无线充电设备对第二电子设备充电,以及用于透过无线充电设备接收来自第二电子设备的电能。该无线充电设备包括图21所示的无线充电接收电路21000。
可以理解的是,终端设备为了实现上述功能,其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到,结合本文中所公开的实施例描述的各示例的模块及算法步骤,本申请能够以硬件和计算机软件的结合形式来实现。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种 实现不应认为超出本申请的范围。
结合本申请公开内容所描述的方法或者算法的步骤可以硬件的方式来实现,也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成,软件模块可以被存放于随机存取存储器(Random Access Memory,RAM)、闪存、可擦除可编程只读存储器(Erasable Programmable ROM,EPROM)、电可擦可编程只读存储器(Electrically EPROM,EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器,从而使处理器能够从该存储介质读取信息,且可向该存储介质写入信息。当然,存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外,该ASIC可以位于核心网接口设备中。当然,处理器和存储介质也可以作为分立组件存在于核心网接口设备中。
本领域技术人员应该可以意识到,在上述一个或多个示例中,本发明所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时,可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机可读存储介质和通信介质,其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述的具体实施方式,对本发明的目的、技术方案和有益效果进行了进一步详细说明,所应理解的是,以上所述仅为本发明的具体实施方式而已,并不用于限定本发明的保护范围,凡在本发明的技术方案的基础之上,所做的任何修改、等同替换、改进等,均应包括在本发明的保护范围之内。

Claims (47)

  1. 一种无线充电装置,其特征在于,包括第一电子设备和从属于所述第一电子设备的附属设备,其中,所述附属设备与所述第一电子设备物理连接,所述第一电子设备用于对所述附属设备充电,所述附属设备包括接收电路和外壳,所述接收电路包括接收线圈,所述接收线圈位于所述外壳的内侧;
    所述无线充电装置对位于所述无线充电装置外侧的第二电子设备进行充电时,所述第一电子设备发射的磁场透过所述附属设备对所述第二电子设备充电;或者,
    所述无线充电装置接收来自位于所述无线充电装置外侧的第二电子设备的反向充电时,所述第一电子设备接收来自所述第二电子设备且透过所述附属设备的磁场。
  2. 根据权利要求1所述的无线充电装置,其特征在于,所述接收线圈与和所述外壳的内侧之间无磁性材料,或者,所述接收线圈和所述外壳的内侧之间的磁性材料的面积小于预设阈值。
  3. 根据权利要求1或2所述的无线充电装置,其特征在于,在所述第一电子设备透过所述附属设备对所述第二电子设备充电,或,透过所述附属设备接收来自所述第二电子设备的反向充电时,所述接收电路的无线充电接收功能处于关闭状态。
  4. 根据权利要求3所述的无线充电装置,其特征在于,所述接收电路还包括输出开关和ASK调制电路,
    在所述接收电路的无线充电接收功能处于关闭状态时,所述输出开关和所述ASK调制电路均处于断开状态;
    在所述接收电路的无线充电接收功能处于打开状态时,所述输出开关和所述ASK调制电路均处于导通状态。
  5. 根据权利要求1至4任一项所述的无线充电装置,其特征在于,所述接收电路还包括一个或多个第一开关、匹配电路和整流电路,至少一个所述第一开关位于所述接收线圈与所述匹配电路之间,和/或,至少一个所述第一开关位于所述匹配电路与所述整流电路之间。
  6. 根据权利要求1至5任一项所述的无线充电装置,其特征在于,所述附属设备的自谐振频率大于所述第一电子设备对所述第二电子设备充电,或者,所述第一电子设备接收来自所述第二电子设备的电能时的最大工作频率。
  7. 根据权利要求4所述的无线充电装置,其特征在于,所述接收电路还包括控制器,在所述附属设备的控制器和/或应用处理器AP接收到无线充电需求时,控制所述输出开关和所述ASK调制电路均处于导通状态。
  8. 根据权利要求7所述的无线充电装置,其特征在于,在所述附属设备充电完成后,所述控制器用于控制所述ASK调制电路向所述第一电子设备发送用于指示充电完成的信息,且用于控制所述ASK调制电路和所述输出开关从导通状态切换到断开状态。
  9. 根据权利要求5所述的无线充电装置,其特征在于,所述接收电路还包括控制器,在所述附属设备的控制器和/或处理器接收到无线充电需求时,控制一个或多个所述第一开关、所述输出开关以及所述ASK调制电路均处于导通状态。
  10. 根据权利要求9所述的无线充电装置,其特征在于,在所述附属设备充电完 成后,所述控制器用于控制所述ASK调制电路向所述第一电子设备发送用于指示充电完成的信息,且用于控制一个或多个所述第一开关、所述ASK调制电路和所述输出开关从导通状态切换到断开状态。
  11. 根据权利要求1至10任一项所述的无线充电装置,其特征在于,所述第一电子设备是平板,所述附属设备是键盘。
  12. 一种无线充电系统,其特征在于,包括第一电子设备、无线充电设备和第二电子设备,所述无线充电设备位于所述第一电子设备和所述第二电子设备之间,其中,所述无线充电设备为所述第一电子设备的附属设备且与所述第一电子设备物理连接,所述无线充电设备包括接收电路和外壳,所述接收电路包括接收线圈,所述接收线圈位于所述外壳的内侧;
    所述第一电子设备用于对所述无线充电设备充电,用于透过所述无线充电设备对所述第二电子设备充电,以及用于透过所述无线充电设备接收来自所述第二电子设备的电能。
  13. 根据权利要求12所述的系统,其特征在于,所述第一电子设备对所述第二电子设备充电,或接收来自所述第二电子设备的电能时,所述第一电子设备和所述第二电子设备之间的电磁场穿透所述无线充电设备。
  14. 根据权利要求12或13所述的系统,其特征在于,所述接收线圈和所述外壳的内侧之间无磁性材料,或者,所述接收线圈和所述外壳的内侧之间的磁性材料的面积小于预设阈值。
  15. 根据权利要求12至14任一项所述的系统,其特征在于,
    在所述第一电子设备对所述第二电子设备充电,或者,所述第一电子设备接收来自所述第二电子设备的电能时,所述接收电路的无线充电接收功能处于关闭状态;
    在所述第一电子设备对所述附属设备进行充电时,所述接收电路的无线充电接收功能处于开启状态。
  16. 根据权利要求15所述的系统,其特征在于,所述接收电路还包括输出开关和振幅键控ASK调制电路,
    在所述接收电路的无线充电接收功能处于关闭状态时,所述输出开关和所述ASK调制电路均处于关断状态;
    在所述接收电路的无线充电接收功能处于开启状态时,所述输出开关和所述ASK调制电路均处于导通状态。
  17. 根据权利要求16所述的系统,其特征在于,
    所述无线充电设备具体用于根据用户输入的指令或传感器的检测信息,确定所述无线充电设备有无线充电需求;或者,
    所述无线充电设备具体还用于接收来自所述第一电子设备的第一信息,并基于所述第一信息确定所述无线充电设备有无线充电需求;所述第一信息用于指示所述无线充电设备有无线充电需求。
  18. 根据权利要求17所述的系统,其特征在于,
    在所述无线充电设备具有无线充电需求时,所述输出开关和所述ASK调制电路均处于导通状态。
  19. 根据权利要求16至18任一项所述的系统,其特征在于,
    所述无线充电设备还用于在该无线充电设备充电完成时,向所述第一电子设备发送第二信息,所述第二信息用于指示所述无线充电设备充电完成;
    以及,所述无线充电设备还用于在发送所述第二信息之后,关闭所述ASK调制电路的调制功能,并关断所述输出开关。
  20. 根据权利要求15至19任一项所述的系统,其特征在于,所述接收电路还包括一个或多个第一开关、匹配电路和整流电路,所述接收线圈的两端与所述匹配电路的输入端连接,所述匹配电路的输出端连接所述整流电路的输入端,一个或多个所述第一开关设置的位置包括:所述接收线圈与所述匹配电路之间的位置,或,所述匹配电路和所述整流电路的输入端之间的位置中的一个或多个位置;
    在所述接收电路的无线充电接收功能处于关闭状态时,一个或多个所述第一开关处于断开状态;
    在所述接收电路的无线充电接收功能处于开启状态时,一个或多个所述第一开关处于导通状态。
  21. 根据权利要求20所述的系统,其特征在于,所述第一开关为有源开关或无源开关。
  22. 根据权利要求15所述的系统,其特征在于,所述接收电路还包括蓝牙模块,所述无线充电设备还用于通过所述蓝牙模块与所述第一电子设备配对;
    所述无线充电设备还用于在所述蓝牙模块与所述第一电子设备配对连接成功的情况下,通过所述蓝牙模块接收来自所述第一电子设备的第一指令,通过所述蓝牙模块打开所述接收电路的无线充电接收功能;所述第一指令用于指示打开所述接收电路的无线充电接收功能。
  23. 根据权利要求22所述的系统,其特征在于,所述接收电路还包括整流电路和第二开关;所述第二开关的一端连接所述整流电路的输出端,所述第二开关的另一端用于连接负载;在所述接收电路的无线充电接收功能处于关闭状态时,所述第二开关处于断开状态;在所述接收电路的无线充电接收功能处于开启状态时,所述第二开关处于导通状态。
  24. 根据权利要求12至23中任一项所述的系统,其特征在于,所述无线充电设备的自谐振频率大于所述第一电子设备对所述第二电子设备充电,或者,所述第一电子设备接收来自所述第二电子设备的电能时的最大工作频率。
  25. 一种无线充电方法,其特征在于,包括:
    在附属设备具有无线充电需求时,第一电子设备对所述附属设备进行无线充电,其中,所述附属设备和所述第一电子设备位于同一无线充电装置内,所述附属设备从属于所述第一电子设备,且所述附属设备与所述第一电子设备物理连接;
    在第二电子设备具有无线充电需求时,所述第一电子设备发射的磁场穿过所述附属设备对所述第二电子设备充电,或者,在所述第一电子设备具有无线充电需求时,所述第二电子设备发射的磁场穿过所述附属设备对所述第一电子设备充电,其中,所述第二电子设备位于所述无线充电装置的外侧。
  26. 根据权利要求25所述的无线充电方法,其特征在于,所述在附属设备具有无 线充电需求时,第一电子设备对所述附属设备进行无线充电,具体包括:
    在所述附属设备具有无线充电需求时,所述附属设备内的接收电路导通;
    所述第一电子设备通过所述接收电路对所述附属设备进行无线充电。
  27. 根据权利要求26所述的无线充电方法,其特征在于,在所述附属设备充电完毕后,所述附属设备向所述第一电子设备发送第二信息,所述第二信息用于指示所述附属设备充电完成。
  28. 根据权利要求25至27中任一项所述的无线充电方法,其特征在于,在所述充电操作之前,所述方法还包括:
    所述第一电子设备确定有待充电的无线设备,启动无线充电发射功能,检测所述待充电的无线设备为所述附属设备还是为所述第二电子设备。
  29. 根据权利要求25至27中任一项所述的无线充电方法,其特征在于,在对所述附属设备进行充电操作之前,所述方法还包括:
    所述附属设备向所述第一电子设备发送第一数据信息;
    所述第一电子设备接收并确定是否正确接收了所述第一数据信息,并在正确接收所述第一数据信息之后,所述第一电子设备对所述附属设备进行无线充电。
  30. 根据权利要求25至27中任一项所述的无线充电方法,其特征在于,所述第一电子设备对所述附属设备进行无线充电的过程中,所述附属设备还间隔地向所述第一电子设备发送至少一次所述第一数据信息;
    所述第一电子设备接收并确定是否正确接收了所述第一数据信息,并在正确接收所述第一数据信息之后,所述第一电子设备继续对所述附属设备进行无线充电。
  31. 根据权利要求25所述的无线充电方法,其特征在于,在对所述第二电子设备进行充电操作之前,所述方法还包括:
    所述第二电子设备向所述第一电子设备发送第二数据信息;
    所述第一电子设备接收并确定是否正确接收了所述第二数据信息,并在正确接收所述第一数据信息之后,所述第一电子设备对所述第二电子设备进行无线充电。
  32. 根据权利要求25所述的无线充电方法,其特征在于,所述第一电子设备对所述第二电子设备进行无线充电的过程中,所述第二电子设备还间隔地向所述第一电子设备发送至少一次所述第二数据信息;
    所述第一电子设备接收并确定是否正确接收了所述第二数据信息,并在正确接收所述第二数据信息之后,所述第一电子设备继续对所述第二电子设备进行无线充电。
  33. 一种无线充电方法,其特征在于,应用于无线充电系统,所述无线充电系统包括第一电子设备、无线充电设备和第二电子设备,所述无线充电设备位于所述第一电子设备和所述第二电子设备之间,其中,所述无线充电设备为所述第一电子设备的附属设备且与所述第一电子设备物理连接,所述无线充电设备包括接收电路和外壳,所述接收电路包括接收线圈,所述接收线圈位于所述外壳的内侧;所述方法包括:
    所述第一电子设备透过所述无线充电设备对所述第二电子设备充电;或者,
    所述第一电子设备透过所述无线充电设备接收来自所述第二电子设备的电能。
  34. 根据权利要求33所述的方法,其特征在于,所述第一电子设备对所述第二电子设备充电,或接收来自所述第二电子设备的电能时,所述第一电子设备和所述第二 电子设备之间的电磁场穿透所述无线充电设备。
  35. 根据权利要求33或34所述的方法,其特征在于,所述接收线圈和所述外壳的内侧之间无磁性材料,或者,所述接收线圈和所述外壳的内侧之间的磁性材料的面积小于预设阈值;在所述第一电子设备对所述第二电子设备充电,或者,所述第一电子设备接收来自所述第二电子设备的电能时,所述接收电路的无线充电接收功能处于关闭状态;所述方法还包括:
    所述无线充电设备确定其有无线充电需求;
    所述无线充电设备基于所述无线充电需求,打开所述接收电路的无线充电接收功能。
  36. 根据权利要求35所述的方法,其特征在于,所述接收电路还包括输出开关和振幅键控ASK调制电路,所述接收电路的无线充电接收功能处于关闭状态,包括:所述输出开关处于关断状态,且所述ASK调制电路的调制功能处于关闭状态;
    所述无线充电设备打开所述接收电路的无线充电接收功能,包括:所述无线充电设备打开所述ASK调制电路的调制功能,并闭合所述输出开关。
  37. 根据权利要求36所述的方法,其特征在于,所述无线充电设备确定其有无线充电需求,包括:
    所述无线充电设备根据用户输入的指令或传感器的检测信息,确定所述无线充电设备有无线充电需求;或者,
    所述无线充电设备接收来自所述第一电子设备的第一信息,并基于所述第一信息确定所述无线充电设备有无线充电需求;所述第一信息用于指示所述无线充电设备有无线充电需求。
  38. 根据权利要求36或37所述的方法,其特征在于,所述方法还包括:
    所述无线充电设备在该无线充电设备充电完成时,向所述第一电子设备发送第二信息,所述第二信息用于指示所述无线充电设备充电完成;或者,
    所述无线充电设备在该无线充电设备充电完成时,关闭所述ASK调制电路的调制功能,并关断所述输出开关。
  39. 根据权利要求35所述的方法,其特征在于,所述接收电路还包括一个或多个第一开关、匹配电路和整流电路,所述接收线圈的两端与所述匹配电路的输入端连接,所述匹配电路的输出端连接所述整流电路的输入端,所述一个或多个第一开关设置的位置包括:所述接收线圈与所述匹配电路之间的位置,或,所述匹配电路和所述整流电路的输入端之间的位置中的一个或多个位置。
  40. 根据权利要求39所述的方法,其特征在于,所述接收电路还包括输出开关和ASK调制电路,所述接收电路的无线充电接收功能处于关闭状态,包括:所述一个或多个第一开关处于关断状态;
    所述无线充电设备打开所述接收电路的无线充电接收功能,包括:所述无线充电设备闭合所述一个或多个第一开关,打开所述ASK调制电路的调制功能,并闭合所述输出开关。
  41. 根据权利要求39或40所述的方法,其特征在于,所述第一开关为有源开关或无源开关。
  42. 根据权利要求39-41中任一项所述的方法,其特征在于,所述无线充电设备确定其有无线充电需求,包括:
    所述无线充电设备根据用户输入的指令或传感器的检测信息,确定所述无线充电设备有无线充电需求。
  43. 根据权利要求39-42中任一项所述的方法,其特征在于,所述方法还包括:
    所述无线充电设备充电在该无线充电设备充电完成时,向所述第一电子设备发送第二信息,所述第二信息用于指示所述无线充电设备充电完成;或者,
    所述无线充电设备充电在该无线充电设备充电完成时,关断所述第一开关。
  44. 根据权利要求33或34所述的方法,其特征在于,所述接收电路还包括蓝牙模块,所述接收线圈和所述外壳的内侧之间无磁性材料,或者,所述接收线圈和所述外壳的内侧之间的磁性材料的面积小于预设阈值;在所述第一电子设备对所述第二电子设备充电,或者,所述第一电子设备接收来自所述第二电子设备的电能时,所述接收电路的无线充电接收功能处于关闭状态;所述方法还包括:
    所述无线充电设备通过所述蓝牙模块与所述第一电子设备配对;
    所述无线充电设备在所述蓝牙模块与所述第一电子设备配对连接成功的情况下,通过所述蓝牙模块接收来自所述第一电子设备的第一指令,通过所述蓝牙模块打开所述接收电路的无线充电接收功能;所述第一指令用于指示打开所述接收电路的无线充电接收功能。
  45. 根据权利要求44所述的方法,其特征在于,所述接收电路还包括整流电路和第二开关;所述第二开关的一端连接所述整流电路的输出端,所述第二开关的另一端用于连接负载;所述接收电路的无线充电接收功能处于关闭状态,包括:所述第二开关处于关断状态;
    所述无线充电设备通过所述蓝牙模块打开所述接收电路的无线充电接收功能,包括:所述无线充电设备通过所述蓝牙模块闭合所述第二开关。
  46. 根据权利要求33-45中任一项所述的方法,其特征在于,所述无线充电设备的自谐振频率大于所述第一电子设备对所述第二电子设备充电,或者,所述第一电子设备接收来自所述第二电子设备的电能时的最大工作频率。
  47. 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质包括计算机指令,当所述计算机指令在电子设备上运行时,使得所述电子设备执行如权利要求33-46中任一项所述的无线充电方法。
PCT/CN2020/130596 2019-11-20 2020-11-20 一种无线充电系统和无线充电方法 Ceased WO2021098846A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020227020400A KR102680015B1 (ko) 2019-11-20 2020-11-20 무선 충전 시스템 및 무선 충전 방법
EP20889527.6A EP4054055A4 (en) 2019-11-20 2020-11-20 WIRELESS CHARGING SYSTEM AND WIRELESS CHARGING METHOD
US17/748,569 US20230103280A9 (en) 2019-11-20 2022-05-19 Wireless charging system and wireless charging method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911143579.6 2019-11-20
CN201911143579.6A CN112825432B (zh) 2019-11-20 2019-11-20 一种无线充电系统和无线充电方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/748,569 Continuation US20230103280A9 (en) 2019-11-20 2022-05-19 Wireless charging system and wireless charging method

Publications (1)

Publication Number Publication Date
WO2021098846A1 true WO2021098846A1 (zh) 2021-05-27

Family

ID=75906365

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/130596 Ceased WO2021098846A1 (zh) 2019-11-20 2020-11-20 一种无线充电系统和无线充电方法

Country Status (5)

Country Link
US (1) US20230103280A9 (zh)
EP (1) EP4054055A4 (zh)
KR (1) KR102680015B1 (zh)
CN (1) CN112825432B (zh)
WO (1) WO2021098846A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023005393A1 (zh) * 2021-07-30 2023-02-02 荣耀终端有限公司 一种无线充电系统

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12283838B2 (en) * 2020-08-14 2025-04-22 Cirrus Logic Inc. Reverse wireless charging power management
FR3122957B1 (fr) * 2021-05-11 2025-12-12 St Microelectronics Ltd Dispositif RFID et Qi
CN115442465B (zh) * 2021-06-04 2025-04-18 Oppo广东移动通信有限公司 一种终端的保护壳、控制方法和计算机存储介质
CN115693975A (zh) * 2021-07-28 2023-02-03 华为技术有限公司 无线充电系统、方法和功能壳
JP7848977B2 (ja) * 2023-08-31 2026-04-21 シェンジェン リンイ イノベイション テクノロジー カンパニー リミテッド スマート端末の保護ケース及びスマート端末の保護ケースの使用方法投影システム及び投影システムに適用される投影方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101237365B1 (ko) * 2011-04-07 2013-02-28 이티에이치주식회사 핸즈프리 기능을 구비한 트랜스포머 방식 무접점 충전장치
CN205945254U (zh) * 2016-08-20 2017-02-08 中惠创智无线供电技术有限公司 机器人无线充电装置
CN107947396A (zh) * 2017-12-05 2018-04-20 宁波微鹅电子科技有限公司 一种电磁屏蔽装置、无线充电发射端、接收端及系统
CN208874364U (zh) * 2018-11-02 2019-05-17 宁波微鹅电子科技有限公司 无线充电附加装置、无线充电发射端、接收端及系统
CN110266118A (zh) * 2019-07-15 2019-09-20 广东工业大学 一种无线充电器及其辅助充电装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4308855B2 (ja) * 2007-01-17 2009-08-05 セイコーエプソン株式会社 受電制御装置、受電装置および電子機器
KR101979459B1 (ko) * 2012-12-03 2019-05-16 엘에스전선 주식회사 무선 전력 전송 시스템, 무선 전력 수신 장치 및 무선 전력 수신 방법
CN203225555U (zh) * 2013-04-19 2013-10-02 致伸科技股份有限公司 电子装置的保护装置
KR101833735B1 (ko) * 2013-10-02 2018-03-02 엘지이노텍 주식회사 이동 단말기, 무선전력 수신장치 및 무선전력 수신장치의 전력 조절 방법
KR102438626B1 (ko) * 2014-07-07 2022-08-31 엘지전자 주식회사 무선 전력 전송방법, 장치 및 시스템
US10404089B2 (en) * 2014-09-29 2019-09-03 Apple Inc. Inductive charging between electronic devices
KR20170107199A (ko) * 2016-03-15 2017-09-25 엘지이노텍 주식회사 무선 전력 송신 제어 방법 및 장치
US20180198306A1 (en) * 2017-01-06 2018-07-12 Robert Findley Induction Power Transfer Charger for Tablet to Tablet Wireless Charging
CN106933377B (zh) * 2017-04-07 2025-01-17 深圳市汇创达科技股份有限公司 带有无线充电功能的平板电脑皮套键盘
KR20190011638A (ko) * 2017-07-25 2019-02-07 엘지이노텍 주식회사 무선 전력 수신기 및 무선 전력 송신기의 과열방지 방법
CN107546803A (zh) * 2017-09-08 2018-01-05 广东虹勤通讯技术有限公司 一种无线充电设备、无线充电系统及方法
US11133696B2 (en) * 2019-01-11 2021-09-28 Apple Inc. Wireless power system
US11251642B2 (en) * 2019-03-20 2022-02-15 Geoffrey Herbert Harris Wireless charging apparatus
CN110323839A (zh) * 2019-06-19 2019-10-11 华为技术有限公司 一种用于无线电能传输的保护壳、方法及系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101237365B1 (ko) * 2011-04-07 2013-02-28 이티에이치주식회사 핸즈프리 기능을 구비한 트랜스포머 방식 무접점 충전장치
CN205945254U (zh) * 2016-08-20 2017-02-08 中惠创智无线供电技术有限公司 机器人无线充电装置
CN107947396A (zh) * 2017-12-05 2018-04-20 宁波微鹅电子科技有限公司 一种电磁屏蔽装置、无线充电发射端、接收端及系统
CN208874364U (zh) * 2018-11-02 2019-05-17 宁波微鹅电子科技有限公司 无线充电附加装置、无线充电发射端、接收端及系统
CN110266118A (zh) * 2019-07-15 2019-09-20 广东工业大学 一种无线充电器及其辅助充电装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4054055A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023005393A1 (zh) * 2021-07-30 2023-02-02 荣耀终端有限公司 一种无线充电系统

Also Published As

Publication number Publication date
EP4054055A1 (en) 2022-09-07
CN112825432A (zh) 2021-05-21
KR20220100038A (ko) 2022-07-14
US20220278557A1 (en) 2022-09-01
US20230103280A9 (en) 2023-03-30
KR102680015B1 (ko) 2024-06-28
EP4054055A4 (en) 2023-02-22
CN112825432B (zh) 2024-10-11

Similar Documents

Publication Publication Date Title
WO2021098846A1 (zh) 一种无线充电系统和无线充电方法
KR102680568B1 (ko) 무선 전력 전송 시스템에서 코일 위치 조절 방법 및 그 장치
US20220407369A1 (en) Feedback control schemes for wireless power transfer circuits
US9859719B2 (en) Method and apparatus for wireless power transfer
CN104428972B (zh) 用于小型设备无线充电模式的系统、方法和装置
CN112104104B (zh) 在无线电力传输系统中检测外来物体的设备和方法
JP5372537B2 (ja) 電子機器充電システム、充電器、及び電子機器
US20150303699A1 (en) Multi-coil induction
CN103117813A (zh) 一种用户终端以及控制nfc单元与无线充电单元切换的方法
KR20110125755A (ko) 이동체를 이용한 전력 및 데이터 전송 장치 및 방법
JP2011030404A (ja) 情報処理装置、プログラム、および情報処理システム
WO2015023092A1 (ko) 무선 전력 전송 시스템에서 무선 충전 제어 방법 및 장치
CN104253490B (zh) 馈电装置和馈电系统
WO2019109721A1 (zh) 无线充电方法、装置、终端、存储介质及电子装置
EP3297124A1 (en) Wireless power transmission apparatus and control method therefor, method for controlling wireless power reception apparatus, and wireless power transmission system and wireless power transmission method therefor
JP2015204708A (ja) 端末装置及び送電制御方法
CN112886994B (zh) 一种终端
JP2014023298A (ja) 非接触送受電装置
CN107710555A (zh) 无线电力传输设备及其控制方法
KR101610678B1 (ko) 정보 전송 기능이 구비된 무선 충전 장치
US9473206B2 (en) Power feeding unit, power receiving unit, and feed system
KR101425604B1 (ko) 무선 통신 기반 멀티노드 무선 전력 전송 시스템의 저전력 무선 충전기기 및 무선 충전 방법
US9762080B2 (en) Electronic apparatus, system and charging method thereof
CN202872474U (zh) 一种投影仪无线充电器
KR20140123811A (ko) 무선 전력 송수신장치, 무선 충전 시스템 및 무선 충전 시스템의 제어방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20889527

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2020889527

Country of ref document: EP

Effective date: 20220531

ENP Entry into the national phase

Ref document number: 20227020400

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE