WO2022199212A1 - 一种无线充电装置及电子设备 - Google Patents

一种无线充电装置及电子设备 Download PDF

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Publication number
WO2022199212A1
WO2022199212A1 PCT/CN2022/070387 CN2022070387W WO2022199212A1 WO 2022199212 A1 WO2022199212 A1 WO 2022199212A1 CN 2022070387 W CN2022070387 W CN 2022070387W WO 2022199212 A1 WO2022199212 A1 WO 2022199212A1
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WO
WIPO (PCT)
Prior art keywords
wireless charging
coil
charging
control circuit
stylus
Prior art date
Application number
PCT/CN2022/070387
Other languages
English (en)
French (fr)
Inventor
武渊
张伟
王丰
王朝
赵礼列
黄华
Original Assignee
荣耀终端有限公司
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.)
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Publication date
Application filed by 荣耀终端有限公司 filed Critical 荣耀终端有限公司
Priority to US17/995,871 priority Critical patent/US20230179019A1/en
Publication of WO2022199212A1 publication Critical patent/WO2022199212A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
    • G06F1/1698—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 the I/O peripheral being a sending/receiving arrangement to establish a cordless communication link, e.g. radio or infrared link, integrated cellular phone
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/266—Arrangements 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements 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
    • G06F3/0231—Cordless keyboards
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • H02J50/402—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/50—Circuit arrangements or systems for wireless supply or distribution of electric power using additional energy repeaters between transmitting devices and receiving devices
    • H02J50/502—Circuit arrangements or systems for wireless supply or distribution of electric power using additional energy repeaters between transmitting devices and receiving devices the energy repeater being integrated together with the emitter or the receiver
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0044—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2200/00—Indexing scheme relating to G06F1/04 - G06F1/32
    • G06F2200/16—Indexing scheme relating to G06F1/16 - G06F1/18
    • G06F2200/163—Indexing scheme relating to constructional details of the computer
    • G06F2200/1632—Pen holder integrated in the computer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/0202—Constructional details or processes of manufacture of the input device
    • G06F3/021—Arrangements integrating additional peripherals in a keyboard, e.g. card or barcode reader, optical scanner
    • G06F3/0213—Arrangements providing an integrated pointing device in a keyboard, e.g. trackball, mini-joystick
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the embodiments of the present application relate to the technical field of wireless charging, and in particular, to a wireless charging device and an electronic device.
  • electronic devices such as mobile phones and tablet computers can be equipped with a stylus, and users can use the stylus to input text, images and other information to the electronic device.
  • the stylus can be charged by wired charging and wireless charging.
  • the top 103 of the electronic device 102 is provided with a charging coil (not shown in FIG. 1 ), and the user can attach the stylus 101 to the top 103 of the electronic device 102 . Furthermore, the charging coil of the electronic device 102 can perform energy interaction with the charging coil of the stylus 101 to transmit the power of the electronic device 102 to the stylus 101 , that is, to charge the stylus 101 .
  • Embodiments of the present application provide a wireless charging device and an electronic device, which can improve charging efficiency during wireless charging and reduce power consumption overhead caused by wireless charging.
  • the present application provides a wireless charging device, including: a receiving structure and a first charging control circuit; wherein, the above-mentioned receiving structure specifically includes a receiving cavity and a first wireless charging coil (ie, a TX coil), and the first wireless charging The coil can be arranged around the receiving cavity; and, the first wireless charging coil can be connected with the first charging control circuit.
  • the first charging control circuit is used for outputting an alternating electrical signal to the first wireless charging coil, so that the first wireless charging coil generates an alternating electromagnetic field.
  • the above-mentioned accommodating cavity is used for accommodating a stylus, and the stylus is provided with a second wireless charging coil (ie an RX coil); when the stylus is accommodated in the accommodating cavity, the second wireless charging coil is also accommodated in the first wireless charging coil. , at this time, the second wireless charging coil can sense alternating electromagnetic fields generated by the first wireless charging coil in multiple directions, thereby generating coupling with the first wireless charging coil.
  • a second wireless charging coil ie an RX coil
  • the RX coil senses the alternating electromagnetic field on one side of the TX coil by being symmetrically arranged in parallel with the TX coil.
  • the second wireless charging coil ie the RX coil
  • the first wireless charging coil ie the TX coil
  • improve the coupling coefficient between the RX coil and the TX coil thereby improving the The charging speed and charging efficiency during wireless charging are reduced, and the power consumption overhead caused by wireless charging is reduced at the same time.
  • the size of the accommodating cavity may correspond to the size of the stylus, and/or the shape of the accommodating cavity may correspond to the shape of the stylus, so that the stylus can be easily accommodated in the accommodating cavity.
  • the shape of the receiving cavity can also be different from that of the stylus.
  • the cross-section of the stylus may be polygonal, and the cross-section of the receiving cavity may be circular.
  • the above-mentioned wireless charging device further includes a battery, and the battery is connected to the above-mentioned first charging control circuit; wherein, the battery is used to output a direct current signal to the first charging control circuit; further, the first charging control circuit may Convert the received DC signal into an AC signal.
  • the above-mentioned wireless charging device further includes a charging interface, and the charging interface is connected to the first charging control circuit; wherein, the charging interface is used to obtain a direct current signal from a power adapter, a mobile power supply or the first electronic device, The direct current signal is output to the first charging control circuit; further, the first charging control circuit can convert the received direct current signal into an alternating current signal.
  • the first charging control circuit can obtain corresponding electrical signals from the battery for wirelessly charging the stylus, or the first charging control circuit can obtain corresponding electrical signals from the charging interface for wirelessly charging the stylus .
  • the above-mentioned wireless charging device further includes a third wireless charging coil, and the third wireless charging coil is connected to the second charging control circuit; wherein, the third wireless charging coil is used for receiving the data generated by the second electronic device.
  • the alternating electromagnetic field generates an alternating electric signal, and outputs the generated alternating electric signal to the second charging control circuit. That is to say, the wireless charging device can also be used as an RX device to wirelessly charge other devices through the third wireless charging coil.
  • the above-mentioned second charging control circuit can be connected to the battery; wherein, the second charging control circuit can rectify the received alternating current signal into a direct current signal, and output the direct current signal to the battery.
  • the above-mentioned accommodating structure may further include a casing, wherein the first wireless charging coil is disposed between the casing and the accommodating cavity.
  • the above-mentioned wireless charging device may specifically be a Bluetooth keyboard
  • the Bluetooth keyboard includes a keyboard body and a cover plate, and the keyboard body and the cover plate are hinged by a rotating shaft; wherein, part or all of the rotating shaft may be the above-mentioned storage structure.
  • the housing of the rotating shaft may be the same as the housing of the above-mentioned accommodating structure.
  • an embodiment of the present application provides an electronic device, including a memory, one or more processors, and the foregoing wireless charging apparatus.
  • the first wireless charging coil ie, the TX coil
  • the above-mentioned wireless charging device is used to wirelessly charge other devices (eg, a stylus).
  • the above-mentioned memory is used to store computer program code.
  • the computer program code includes computer instructions. When the above-mentioned processor executes the computer instructions, it can control the wireless charging device to wirelessly charge other devices.
  • FIG. 1 is a schematic diagram of a scenario in which a tablet computer wirelessly charges a stylus in the prior art
  • FIG. 2 is a schematic diagram 1 of a wireless charging principle provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram 2 of a wireless charging principle provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram 1 of a receiving structure provided by an embodiment of the present application.
  • FIG. 5 is a second structural schematic diagram of a receiving structure according to an embodiment of the present application.
  • FIG. 6 is a third structural schematic diagram of a receiving structure provided by an embodiment of the present application.
  • FIG. 7 is a fourth schematic structural diagram of a receiving structure provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram 1 of a Bluetooth keyboard according to an embodiment of the present application.
  • FIG. 9 is a second schematic structural diagram of a Bluetooth keyboard according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram three of a Bluetooth keyboard provided by an embodiment of the application.
  • FIG. 11 is a fourth schematic structural diagram of a Bluetooth keyboard provided by an embodiment of the application.
  • FIG. 12 is a fifth structural schematic diagram of a Bluetooth keyboard provided by an embodiment of the application.
  • FIG. 13 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
  • An embodiment of the present application provides a wireless charging apparatus, which can be applied to a process of wirelessly charging one electronic device to another electronic device.
  • the electronic device that provides power may be referred to as a transmitter device (ie, a TX device), and the electronic device that receives power may be referred to as a receiver device (ie, an RX device).
  • the TX device may include: a battery 211 , a charging control circuit 212 , a wireless charging coil 213 and a charging interface 214 .
  • the RX device may include: a battery 221 , a charging control circuit 222 , a wireless charging coil 223 and a charging interface 224 .
  • the wireless charging coil 213 of the TX device may be referred to as a transmitting (Tx) coil, and the wireless charging coil 223 of the RX device may be referred to as a receiving (Rx) coil.
  • the wireless charging coil (ie, the Tx coil) 213 is coupled with the wireless charging coil (ie, the Rx coil) 223 .
  • the charging control circuit 212 of the TX device can obtain the corresponding direct current signal from the battery 211 . Furthermore, the charging control circuit 212 can convert the direct current signal into an alternating current signal, and then input the alternating current signal to the wireless charging coil 213 .
  • the wireless charging coil 213 can generate an alternating electromagnetic field in response to the alternating electrical signal.
  • the charging control circuit 212 of the TX device may also acquire an electrical signal input from an external power source from the charging interface 214 .
  • the power adapter ie, a wired charger
  • the power adapter can convert the alternating current signal into a direct current signal and input it to the charging control circuit 212, and then the charging control circuit 212 can convert the direct current signal to the charging control circuit 212.
  • the signal is converted into an alternating electrical signal, and the alternating electrical signal is input to the wire charging coil 213 , so that the wireless charging coil 213 generates an alternating electromagnetic field.
  • the RX device when the TX device wirelessly charges the RX device, the RX device can induce the alternating electromagnetic field emitted by the wireless charging coil (ie the Tx coil) 213 through the wireless charging coil (ie the Rx coil) 223, thereby generating an alternating electric signal, and
  • the alternating electrical signal is input to the charging control circuit 222 .
  • the charging control circuit 222 can rectify the AC signal into a DC signal, and input the DC signal to the battery 221 to charge the battery 221 to realize wireless charging.
  • the charging efficiency during wireless charging is related to the coupling coefficient K between the wireless charging coil 223 and the wireless charging coil 213 .
  • the coupling coefficient K refers to the ratio of the actual mutual inductance (absolute value) between the wireless charging coil 223 and the wireless charging coil 213 to its maximum limit value. When the coupling coefficient K is larger, it means that the wireless charging coil 223 receives more magnetic flux, and the charging efficiency is higher.
  • the value range of the coupling coefficient K can be 0 to 1.
  • the coupling coefficient K approaches 1
  • almost all the magnetic fluxes generated by the wireless charging coil 213 are received by the wireless charging coil 223 .
  • the wireless charging coil 213 and the wireless charging coil 223 are independent of each other, and the wireless charging coil 223 hardly receives the magnetic flux generated by the wireless charging coil 213.
  • the size of the coupling coefficient K is related to factors such as the distance, size ratio, angle, coil shape, coil material and magnetic core material between the wireless charging coil 213 and the wireless charging coil 223 .
  • the RX device ie the stylus 101
  • the TX device ie the tablet computer 101
  • the RX coil in the stylus 101 and the TX coil in the tablet computer 101 are arranged symmetrically side by side.
  • the RX coil can sense the alternating electromagnetic field generated on the side close to the TX coil, that is, the RX coil can only receive the magnetic flux generated on the outer side of the TX coil, so that the TX coil and the RX coil are unilaterally coupled.
  • the wireless charging coil 223 can be accommodated in the wireless charging coil 213 by changing the positional relationship between the wireless charging coil 213 in the TX device and the wireless charging coil 223 in the RX device. At this time, the wireless charging coil 223 can sense the alternating electromagnetic fields generated by the wireless charging coil 213 in all directions, thereby increasing the magnetic flux received by the wireless charging coil 223 , that is, increasing the coupling coefficient between the wireless charging coil 213 and the wireless charging coil 223 K, thereby improving the charging efficiency during wireless charging, which will be described in detail in the subsequent embodiments, so it will not be repeated here.
  • TX devices can also support wired charging. Still as shown in FIG. 2 , when the power adapter 1 (ie wired charger) connected to the power source is connected to the charging interface 214 , the charging control circuit 212 can input the power obtained from the charging interface 214 into the battery 211 to charge the battery 211 .
  • the charging interface 214 may be a universal serial bus (universal serial bus, USB) interface.
  • RX devices can also support wired charging. Still as shown in FIG. 2 , the charging interface 224 of the RX device is used to connect the power adapter 2 for wired charging of the RX device. Wherein, when the power adapter 2 connected to the power supply is connected to the charging interface 224, the principle of each device in the RX device interacting to charge the battery 221 can refer to the principle of wired charging of the TX device, and will not be repeated here.
  • the RX device or the TX device may also include one or more components such as a processor, a memory, or a display screen, which is not limited in this embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a wireless charging system according to an embodiment of the present application.
  • the wireless charging system 300 may include a TX device 310 and an RX device 320 .
  • the TX device 310 is provided with a receiving structure 301 , and the receiving structure 301 can be used to receive the RX device 320 .
  • the TX device 310 can transmit a wireless charging signal to the RX device 320 through the accommodating structure 301 to wirelessly charge the RX device 320 .
  • the device shape of the RX device 320 may match the shape of the storage cavity in the storage structure 301 .
  • the shape of the receiving cavity 302 in the receiving structure 301 can also be correspondingly cylindrical.
  • the shape of the accommodating cavity 302 in the accommodating structure 301 can also be correspondingly a cuboid.
  • the shape of the accommodating cavity 302 in the accommodating structure 301 may be different from the shape of the RX device 320 such as a stylus.
  • the accommodating cavity 302 in the accommodating structure 301 may be cylindrical, and the cross section of the stylus may be hexagonal, which is not limited in this embodiment of the present application.
  • the TX device 110 may be a Bluetooth keyboard, cell phone, tablet, desktop, laptop, handheld computer, notebook computer, ultra-mobile personal computer (UMPC), netbook, and cellular telephone, Electronic devices such as personal digital assistant (PDA), augmented reality (AR) ⁇ virtual reality (VR) devices, and in-vehicle devices can wirelessly charge other devices.
  • PDA personal digital assistant
  • AR augmented reality
  • VR virtual reality
  • in-vehicle devices can wirelessly charge other devices.
  • the RX device 120 may be an electronic device such as a stylus, a wearable device (such as a smart watch, etc.), a true wireless stereo (true wireless stereo, TWS) headset, etc., which can receive wireless charging input from other devices.
  • a wearable device such as a smart watch, etc.
  • a true wireless stereo true wireless stereo, TWS
  • TWS true wireless stereo
  • the size of the accommodating cavity 302 in the accommodating structure 301 may correspond to the size of the stylus 320
  • the shape of the accommodating cavity 302 in the accommodating structure 301 may correspond to the shape of the stylus 320 .
  • a TX coil (also referred to as a first wireless charging coil) 601 may be disposed around the receiving cavity 302 of the receiving structure 301 .
  • the above-mentioned receiving structure 301 can be formed by surrounding the TX coil 601 on a hollow frame made of non-magnetic conductive material. At this time, the interior of the hollow frame is the above-mentioned receiving cavity 302 .
  • the stylus 320 is provided with an RX coil (also referred to as a second wireless charging coil) 602 along the pen body or a part of the pen body.
  • the RX coil 602 is also accommodated in the TX coil 601 .
  • the axis of the RX coil 602 is parallel to or tends to be parallel to the axis of the TX coil 601 .
  • the RX coil 602 can induce the alternating electromagnetic field generated near the side of the TX coil 601 .
  • the coupling coefficient K1 between the TX coil 601 and the RX coil 602 is about 0.25. It can be known from the principle of electromagnetic induction that when the RX coil 602 is accommodated inside the TX coil 601, more magnetic lines of induction generated by the TX coil 601 can pass through the RX coil 602, and the RX coil 602 can sense that the TX coil 601 generates in all directions of alternating electromagnetic fields. At this time, the coupling coefficient K2 between the TX coil 601 and the RX coil 602 can be increased to 0.7.
  • the transmission power of the Bluetooth keyboard 310 ie, the TX device
  • the coupling coefficient can be increased from 0.25 to 0.7
  • the receiving efficiency of the stylus 320 ie, the RX device
  • Increase the charging speed of the entire charging process is faster and the charging efficiency is higher, and the power consumption of the TX device due to wireless charging is also reduced.
  • a magnetic core such as a ferrite core, may also be provided in the RX coil 602 of the stylus 320 .
  • the RX coil 602 can share the magnetic core in the RX coil 602 with the TX coil 601, thereby improving the coupling coefficient K between the TX coil 601 and the RX coil 602, so that the entire charging process is Faster and more efficient charging.
  • the stylus 320 is not easily dropped after being accommodated in the accommodating structure 301 of the Bluetooth keyboard 310, which can reduce the probability of the stylus 320 being lost.
  • the TX device as the Bluetooth keyboard 310 as an example, as shown in FIG. 8 (the receiving structure 301 shown in FIG. 8 is a cross-sectional view of the receiving structure 301 ).
  • accommodating cavity 302 and TX coil 601 The TX coil 601 can be disposed around the accommodating cavity 302 , and the accommodating cavity 302 is used to accommodate the stylus 310 , so that the RX coil 602 in the stylus 310 is accommodated in the TX coil 601 .
  • the above-mentioned TX coil 601 can be connected with the first charging control circuit 801 in the Bluetooth keyboard 310 , and the first charging control circuit 801 can be connected with the battery 802 in the Bluetooth keyboard 310 .
  • the first charging control circuit 801 can obtain the corresponding direct current signal from the battery 802 .
  • the charging control circuit 802 can convert the direct current signal into an alternating electric signal, and then input the alternating electric signal to the TX coil 601, so that the TX coil 601 generates an alternating electromagnetic field.
  • the stylus 320 may further include a charging control circuit and a battery.
  • the RX coil 602 in the stylus 320 can sense the alternating electromagnetic field emitted by the TX coil 601 to generate an alternating electrical signal, and output the alternating electrical signal to the charging control circuit of the stylus 320 .
  • the charging control circuit of the stylus 320 can rectify the received alternating current signal into a direct current signal, and then input the direct current signal into the battery of the stylus 320 to realize wireless charging.
  • a charging interface 803 such as a USB interface, may also be provided in the Bluetooth keyboard 310 .
  • the charging interface 803 can be connected to the first charging control circuit 801 .
  • the Bluetooth keyboard 310 wirelessly charges the stylus 320 , it can also obtain corresponding electrical signals from the charging interface 803 , and then charge the stylus 320 through the TX coil 601 according to the obtained electrical signals.
  • the charging interface 803 of the Bluetooth keyboard 310 can be connected to a power adapter (eg, a wired charger). After the charging interface 803 is connected to the power adapter, the power adapter can convert the obtained AC signal into a DC signal, and then transmit the DC signal to the first charging control circuit 801 through the charging interface 803 .
  • the first charging control circuit 801 can convert the direct current signal into an alternating electric signal, and then input the alternating electric signal to the TX coil 601, so that the TX coil 601 generates an alternating electromagnetic field.
  • the charging interface 803 of the Bluetooth keyboard 310 can be connected to a mobile power source (eg, a power bank). After the charging interface 803 is connected to the mobile power supply, the mobile power supply can output a direct current signal to the charging interface 803 , and then transmit the direct current signal to the first charging control circuit 801 through the charging interface 803 .
  • the first charging control circuit 801 can convert the direct current signal into an alternating electric signal, and then input the alternating electric signal to the TX coil 601, so that the TX coil 601 generates an alternating electromagnetic field.
  • the charging interface 803 of the Bluetooth keyboard 310 can be connected to electronic devices such as mobile phones and tablet computers. At this time, the electronic device provides electrical signals to the Bluetooth keyboard 310 as a mobile power source.
  • the tablet computer 901 can output a DC signal to the charging interface 803 , and then transmit the DC signal to the first charging control circuit 801 through the charging interface 803 .
  • the first charging control circuit 801 can convert the direct current signal into an alternating electric signal, and then input the alternating electric signal to the TX coil 601, so that the TX coil 601 generates an alternating electromagnetic field.
  • the electrical signal obtained by the Bluetooth keyboard 310 from the charging interface 803 can not only charge the stylus 320 through the TX coil 601, but also The battery 802 of the Bluetooth keyboard 310 itself is charged, which is not limited in this embodiment of the present application.
  • the Bluetooth keyboard 310 can also be used as an RX device to obtain power from other electronic devices through wireless charging.
  • the Bluetooth keyboard 310 can also be provided with an RX coil (also called a third wireless charging coil) 1001 , and the RX coil 1001 can be connected to the second charging control circuit 1002 , the second charging control circuit 1002 is connected to the battery 802, and the second charging control circuit 1002 is used to realize the wireless charging process when the Bluetooth keyboard 310 is used as the RX device.
  • the RX coil 1001 can be used to sense the alternating electromagnetic field generated by other TX devices (such as a tablet computer, a mobile phone or a wireless charging base).
  • the RX coil 1001 can generate an alternating electrical signal after sensing the alternating electromagnetic field generated by the TX device, and output the alternating electrical signal to the second charging control circuit 1002 .
  • the second charging control circuit 1002 can rectify the received AC signal into a DC signal, and then output the DC signal to the battery 802 to charge the battery 802 of the Bluetooth keyboard 310 .
  • the Bluetooth keyboard 310 is provided with an RX coil 1001
  • the tablet computer 901 is provided with a TX coil 902.
  • the tablet computer 901 wirelessly charges the Bluetooth keyboard 310
  • the user can approach or contact the RX coil 1001 on the Bluetooth keyboard 310 and the TX coil 902 on the tablet computer 901 .
  • the tablet computer 901 can generate an alternating electromagnetic field through the TX coil 902, and the Bluetooth keyboard 310 can induce the alternating electromagnetic field through the RX coil 1001 to generate an alternating electric signal.
  • the RX coil 1001 of the Bluetooth keyboard 310 can output the generated alternating current signal to the second charging control circuit 1002, and the second charging control circuit 1002 rectifies the received alternating current signal into a direct current signal, and then converts the direct current signal to the second charging control circuit 1002. Output to battery 802 .
  • the first charging control circuit 801 can obtain a DC signal from the battery 802, convert the DC signal into an AC signal and output it to the TX coil 601, so that the TX coil 601 generates an alternating electromagnetic field to charge the stylus.
  • first charging control circuit 801 and second charging control circuit 1002 may be provided in one chip, or may be provided in different chips, which are not limited in the embodiment of the present application.
  • the above-mentioned receiving structure 301 may be a part of the rotating shaft of the Bluetooth keyboard 310 .
  • the Bluetooth keyboard 310 may include a keyboard main body 1201 and a cover plate 1202 , and the keyboard main body 1201 and the cover plate 1202 are hinged through a rotating shaft 1203 .
  • the sleeve (or a part of the sleeve) of the rotating shaft 1203 may be the above-mentioned receiving structure 301 .
  • the above-mentioned storage structure 301 can be set by using the original rotating shaft in the Bluetooth keyboard 310 , the storage of the stylus 320 can be realized without additional mechanical structure, and the charging efficiency of the stylus 320 can be increased at the same time.
  • the above-mentioned receiving structure 301 can also be provided with the above-mentioned receiving structure 301 for receiving RX devices such as a stylus, so as to improve the charging efficiency during wireless charging.
  • RX devices such as a stylus
  • the above-mentioned receiving structure 301 can be set on the rotating shaft of the folding screen mobile phone, which can not only accommodate the stylus 320 in the folding screen mobile phone, but also improve the sensitivity of the stylus. 320 charging efficiency.
  • the above-mentioned storage structure 301 can be provided on the side of the tablet computer, and the charging efficiency of the stylus 320 can also be improved while accommodating the stylus 320 .
  • the specific method of wirelessly charging the RX device by the TX device reference may be made to the method for wirelessly charging the stylus 310 by the Bluetooth keyboard 310 in the above-mentioned embodiment, and thus will not be repeated here.
  • the above-mentioned accommodating structure 301 can also be independent of the TX device (eg, the above-mentioned Bluetooth keyboard 310 ).
  • the accommodating structure 301 can be assembled with the TX device as an independent device form.
  • the RX device such as the stylus 310 can still be accommodated to improve the charging efficiency of the RX device, which is not limited in this embodiment of the present application.
  • the above-mentioned Bluetooth keyboard 310 (ie, TX device) and stylus 310 (ie, RX device) are wirelessly charged, and can be wirelessly charged according to an existing wireless charging protocol.
  • the wireless charging protocol may be any protocol such as the Qi protocol, the (Power Matters Alliance, PMA) protocol, or the (Alliance for Wireless Power, A4WP) protocol, which is not described in detail in this embodiment of the present application.
  • the electronic device may include the above-mentioned receiving structure 301 .
  • the TX coil in the above-mentioned accommodating structure 301 can be connected with the charging control circuit in the electronic device.
  • the charging control circuit can be an IC chip or the like.
  • FIG. 13 it is a schematic structural diagram of an electronic device provided in an embodiment of the present application.
  • the electronic device may include a housing structure 301 (a TX coil is provided in the housing structure 301 ), a processor 1310 , an external memory interface 1320 , an internal memory 1321 , a universal serial bus (USB) interface 1330 , and a charge management module 1340 , battery 1341, antenna 1, antenna 2, mobile communication module 1350, wireless communication module 1360, audio module 1370, speaker 1370A, receiver 1370B, microphone 1370C, headphone jack 1370D, sensor module 1380, button 1390, motor 1391, indicator 1392 , camera 1393, display screen 1394, and user identification module (subscriber identification module, SIM) card interface 1395 and so on.
  • SIM subscriber identification module
  • the sensor module 1380 may include a pressure sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, a bone conduction sensor, and the like.
  • the structures illustrated in the embodiments of the present invention do not constitute a specific limitation on the electronic device.
  • the electronic device may include more or less components than those shown in the figure (for example, the electronic device may further include an RX coil), or some components may be combined, or some components may be split, or different Component placement.
  • the illustrated components may be implemented in hardware, software, or a combination of software and hardware.
  • the processor 1310 may include one or more processing units, for example, the processor 1310 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), controller, memory, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural-network processing unit (NPU) Wait. Wherein, different processing units may be independent devices, or may be integrated in one or more processors.
  • application processor application processor, AP
  • modem processor graphics processor
  • graphics processor graphics processor
  • image signal processor image signal processor
  • ISP image signal processor
  • controller memory
  • video codec digital signal processor
  • DSP digital signal processor
  • NPU neural-network processing unit
  • a memory may also be provided in the processor 1310 for storing instructions and data.
  • the memory in processor 1310 is cache memory. This memory may hold instructions or data that have just been used or recycled by the processor 1310 . If the processor 1310 needs to use the instruction or data again, it can be called directly from the memory. Repeated access is avoided, and the waiting time of the processor 1310 is reduced, thereby improving the efficiency of the system.
  • the processor 1310 may include one or more interfaces.
  • the interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous transceiver (universal asynchronous transmitter) receiver/transmitter, UART) interface, mobile industry processor interface (MIPI), general-purpose input/output (GPIO) interface, subscriber identity module (SIM) interface, and / or USB interface, etc.
  • I2C integrated circuit
  • I2S integrated circuit built-in audio
  • PCM pulse code modulation
  • PCM pulse code modulation
  • UART universal asynchronous transceiver
  • MIPI mobile industry processor interface
  • GPIO general-purpose input/output
  • SIM subscriber identity module
  • the USB interface 1330 is an interface that conforms to the USB standard specification, and specifically can be a Mini USB interface, a Micro USB interface, a USB Type C interface, and the like.
  • the USB interface 1330 can be used to connect a charger (such as the power adapter 1 or the power adapter 2 shown in FIG. 2 ) to charge the electronic device, and can also be used to transmit data between the electronic device and peripheral devices. It can also be used to connect headphones to play audio through the headphones.
  • the interface can also be used to connect other electronic devices or mobile terminals, such as AR devices.
  • the interface connection relationship between the modules illustrated in the embodiments of the present invention is only a schematic illustration, and does not constitute a structural limitation of the electronic device.
  • the electronic device may also adopt different interface connection manners in the foregoing embodiments, or a combination of multiple interface connection manners.
  • the charging management module 1340 may specifically be the charging control circuit (eg, the first charging control circuit 801 or the second charging control circuit 1002 ) described in the above embodiments, and is used to control the charging process of the electronic device.
  • the electronic device may support wired charging.
  • the charging management module 1340 can receive the charging input of the wired charger through the USB interface 1330 .
  • the electronic device may support forward wireless charging, that is, the electronic device is an RX device.
  • the charging management module 1340 may receive wireless charging input through the RX coil.
  • the RX coil can transmit the generated alternating electrical signal to the charging management module 1340 so as to charge the battery 1341 wirelessly.
  • the electronic device may support reverse wireless charging, that is, the electronic device is a TX device.
  • the charging management module 1340 can also receive the input of the battery 1341 , convert the DC signal input by the battery 1341 into an AC signal, and then transmit the AC signal to the TX coil of the above-mentioned storage structure 301 .
  • the TX coil can generate an alternating electromagnetic field after receiving the alternating electrical signal.
  • the RX coil of other mobile terminals such as the above-mentioned stylus 320
  • wireless charging can be performed.
  • the wireless communication function of the electronic device can be implemented by the antenna 1, the antenna 2, the mobile communication module 1350, the wireless communication module 1360, the modulation and demodulation processor, the baseband processor, and the like.
  • Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals.
  • Each antenna in an electronic device can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization.
  • the antenna 1 can be multiplexed as a diversity antenna of the wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.
  • the mobile communication module 1350 can provide wireless communication solutions including 2G/3G/4G/5G etc. applied on the electronic device.
  • the wireless communication module 1360 can provide applications on electronic devices including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), bluetooth (BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), NFC, infrared technology (infrared, IR) and other wireless communication solutions.
  • WLAN wireless local area networks
  • BT wireless fidelity
  • GNSS global navigation satellite system
  • FM frequency modulation
  • NFC infrared technology
  • infrared infrared, IR
  • the electronic device realizes the display function through the GPU, the display screen 1394, and the application processor.
  • the GPU is a microprocessor for image processing, and is connected to the display screen 1394 and the application processor.
  • the GPU is used to perform mathematical and geometric calculations for graphics rendering.
  • Processor 1310 may include one or more GPUs that execute program instructions to generate or change display information.
  • Display screen 1394 is used to display images, videos, and the like.
  • Display screen 1394 includes a display panel.
  • the electronic device may include 1 or N display screens 1394, where N is a positive integer greater than 1.
  • the electronic device can realize the shooting function through ISP, camera 1393, video codec, GPU, display screen 1394 and application processor.
  • the ISP is used to process the data fed back by the camera 1393.
  • the ISP may be located in the camera 1393.
  • the camera 1393 is used to capture still images or video.
  • the electronic device may include 1 or N cameras 1393, where N is a positive integer greater than 1.
  • the external memory interface 1320 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the electronic device.
  • the external memory card communicates with the processor 1310 through the external memory interface 1320 to realize the data storage function. For example to save files like music, video etc in external memory card.
  • Internal memory 1321 may be used to store computer executable program code, which includes instructions.
  • the processor 1310 executes various functional applications and data processing of the electronic device by executing the instructions stored in the internal memory 1321 .
  • the internal memory 1321 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, universal flash storage (UFS), and the like.
  • the electronic device can implement audio functions through an audio module 1370, a speaker 1370A, a receiver 1370B, a microphone 1370C, an earphone interface 1370D, and an application processor. Such as music playback, recording, etc.
  • the audio module 1370 is used for converting digital audio information into analog audio signal output, and also for converting analog audio input into digital audio signal.
  • the audio module 1370 may be provided in the processor 1310 , or some functional modules of the audio module 1370 may be provided in the processor 1310 .
  • Speaker 1370A also referred to as "speaker” is used to convert audio electrical signals into sound signals.
  • the receiver 1370B also referred to as “earpiece”, is used to convert audio electrical signals into sound signals.
  • Microphone 1370C also called “microphone”, “microphone”, is used to convert sound signals into electrical signals.
  • the electronic device may be provided with at least one microphone 1370C.
  • the headphone jack 1370D is used to connect wired headphones.
  • the earphone interface 1370D may be a USB interface 1330, or a 3.5mm open mobile terminal platform (OMTP) standard interface, a cellular telecommunications industry association of the USA (CTIA) standard interface.
  • OMTP open mobile terminal platform
  • the electronic device may further include components such as a button 1390, a motor 1391, an indicator 1392 (such as an indicator light), or a SIM card interface 1395, which is not limited in this embodiment of the present application.
  • components such as a button 1390, a motor 1391, an indicator 1392 (such as an indicator light), or a SIM card interface 1395, which is not limited in this embodiment of the present application.
  • Each functional unit in each of the embodiments of the embodiments of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium.
  • a computer-readable storage medium includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: flash memory, removable hard disk, read-only memory, random access memory, magnetic disk or optical disk and other media that can store program codes.

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Abstract

一种无线充电装置及电子设备，涉及无线充电技术领域。该无线充电装置包括收容结构和第一充电控制电路，收容结构包括收容腔和第一无线充电线圈，第一无线充电线圈围绕收容腔设置，并与第一充电控制电路连接；第一充电控制电路用于向第一无线充电线圈输出交变电信号，使得第一无线充电线圈产生交变电磁场。收容腔用于收容手写笔，手写笔中设置有第二无线充电线圈；当手写笔收容于收容腔时，第二无线充电线圈也随之收容于第一无线充电线圈内，此时，第二无线充电线圈可感应到第一无线充电线圈在多个方向产生的交变电磁场，从而与第一无线充电线圈产生耦合。

Description

一种无线充电装置及电子设备
本申请要求于2021年3月26日提交国家知识产权局、申请号为202110326601.1、发明名称为“一种无线充电装置及电子设备”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装置及电子设备。
背景技术
目前，手机、平板电脑等电子设备上都可以配备手写笔，用户可以使用手写笔向电子设备输入文字、图像等信息。一般，手写笔可以通过有线充电和无线充电两种方式进行充电。
以无线充电方式举例，如图1所示，电子设备102的顶部103设置有充电线圈(图1中未示出)，用户可将手写笔101吸附在电子设备102的顶部103。进而，电子设备102的充电线圈可与手写笔101的充电线圈进行能量交互，将电子设备102的电能传输给手写笔101，即向手写笔101充电。
在这种充电方式中，电子设备102的充电线圈在与手写笔101的充电线圈进行能量交互时，可能会产生能量损失，使得充电效率降低、充电时间增加，同时增加了电子设备102的功耗。
发明内容
本申请实施例提供一种无线充电装置及电子设备，可以提高无线充电时的充电效率，减少无线充电引起的功耗开销。
第一方面，本申请提供一种无线充电装置，包括：收容结构和第一充电控制电路；其中，上述收容结构中具体包括收容腔和第一无线充电线圈(即TX线圈)，第一无线充电线圈可围绕收容腔设置；并且，第一无线充电线圈可与第一充电控制电路连接。第一充电控制电路用于向第一无线充电线圈输出交变电信号，使得第一无线充电线圈产生交变电磁场。
上述收容腔用于收容手写笔，手写笔中设置有第二无线充电线圈(即RX线圈)；当手写笔收容于收容腔时，第二无线充电线圈也随之收容于第一无线充电线圈内，此时，第二无线充电线圈可感应到第一无线充电线圈在多个方向产生的交变电磁场，从而与第一无线充电线圈产生耦合。
相比于现有技术进行无线充电时，RX线圈通过与TX线圈并列对称排布感知TX线圈一侧的交变电磁场，本申请提供的无线充电装置在向手写笔充电时，手写笔中的第二无线充电线圈(即RX线圈)可收容于第一无线充电线圈(即TX线圈)，从而感知TX线圈在各个方向产生的交变电磁场，提高RX线圈与TX线圈之间的耦合系数，从而提高无线充电时的充电速度个充电效率，同时降低因无线充电引起的功耗开销。
在一种可能的实现方式中，上述收容腔的大小可与手写笔的大小对应，和/或，收容腔的形状可与手写笔的形状对应，使手写笔便于收容于收容腔中。当然，收容腔的 形状也可与手写笔的形状不同。例如，手写笔的截面可以为多边形，而收容腔的截面可以为圆形。
在一种可能的实现方式中，上述无线充电装置还包括电池，电池与上述第一充电控制电路相连；其中，电池用于向第一充电控制电路输出直流电信号；进而，第一充电控制电路可将接收到的直流电信号转换为交变电信号。
在一种可能的实现方式中，上述无线充电装置还包括充电接口，充电接口与第一充电控制电路相连；其中，充电接口用于从电源适配器、移动电源或第一电子设备中获取直流电信号，并将直流电信号输出至第一充电控制电路；进而，第一充电控制电路可将接收到的直流电信号转换为交变电信号。
也就是说，第一充电控制电路可从电池中获取相应的电信号用于向手写笔无线充电，或者，第一充电控制电路可从充电接口中获取相应的电信号用于向手写笔无线充电。
在一种可能的实现方式中，上述无线充电装置还包括第三无线充电线圈，第三无线充电线圈与第二充电控制电路连接；其中，第三无线充电线圈用于接收第二电子设备产生的交变电磁场，产生交变电信号，并将产生的交变电信号输出至第二充电控制电路。也就是说，无线充电装置也可以作为RX设备，通过第三无线充电线圈与其他设备进行无线充电。
进一步的，上述第二充电控制电路可与电池连接；其中，第二充电控制电路可将接收到的交变电信号整流为直流电信号，并将直流电信号输出至电池。
在一种可能的实现方式中，上述收容结构还可以包括壳体，其中，第一无线充电线圈设置在壳体与收容腔之间。
在一种可能的实现方式中，上述无线充电装置具体可以为蓝牙键盘，蓝牙键盘包括键盘主体和盖板，键盘主体和盖板之间通过转轴铰接；其中，转轴的部分或全部可以为上述收容结构。例如，转轴的壳体与上述收容结构的壳体可以相同。这样，可以利用蓝牙键盘中原本的转轴设置上述收容结构，不需要额外增加机械结构即可实现对手写笔的收纳，同时可增加对手写笔的充电效率。
第二方面，本申请实施例提供一种电子设备，包括存储器、一个或多个处理器以及上述无线充电装置。其中，上述无线充电装置中设置的第一无线充电线圈(即TX线圈)用于向其他设备(例如手写笔)进行无线充电。上述存储器用于存储计算机程序代码。该计算机程序代码包括计算机指令。当上述处理器执行该计算机指令时，可控制无线充电装置对其他设备进行无线充电。
可以理解地，上述提供的第二方面所述的电子设备所能达到的有益效果，可参考如第一方面及其任一种可能的设计方式中的有益效果，此处不再赘述。
附图说明
图1为现有技术中平板电脑为手写笔无线充电的场景示意图；
图2为本申请实施例提供的一种无线充电的原理示意图一；
图3为本申请实施例提供的一种无线充电的原理示意图二；
图4为本申请实施例提供的一种收容结构的结构示意图一；
图5为本申请实施例提供的一种收容结构的结构示意图二；
图6为本申请实施例提供的一种收容结构的结构示意图三；
图7为本申请实施例提供的一种收容结构的结构示意图四；
图8为本申请实施例提供的一种蓝牙键盘的结构示意图一；
图9为本申请实施例提供的一种蓝牙键盘的结构示意图二；
图10为本申请实施例提供的一种蓝牙键盘的结构示意图三；
图11为本申请实施例提供的一种蓝牙键盘的结构示意图四；
图12为本申请实施例提供的一种蓝牙键盘的结构示意图五；
图13为本申请实施例提供的一种电子设备的结构示意图。
具体实施方式
本申请实施例提供一种无线充电装置，可以应用于一个电子设备为另一个电子设备无线充电过程中。其中，提供电能的电子设备可称为发射端设备(即TX设备)，接收电能的电子设备可称为接收端设备(即RX设备)。
首先，对TX设备为RX设备无线充电的原理进行说明。
示例性的，如图2所示，TX设备可以包括：电池211、充电控制电路212、无线充电线圈213和充电接口214。RX设备可以包括：电池221、充电控制电路222、无线充电线圈223和充电接口224。
其中，TX设备的无线充电线圈213可以称为发射(Tx)线圈，RX设备的无线充电线圈223可以称为接收(Rx)线圈。无线充电线圈(即Tx线圈)213与无线充电线圈(即Rx线圈)223耦合。
当TX设备为RX设备无线充电时，TX设备的充电控制电路212可从电池211中获取对应的直流电信号。进而，充电控制电路212可以将该直流电信号转换为交变电信号，然后向无线充电线圈213输入该交变电信号。无线充电线圈213响应于该交变电信号，可以产生交变电磁场。
或者，TX设备的充电控制电路212也可以可从充电接口214获取外接电源输入的电信号。例如，TX设备通过充电接口214接入电源适配器(即有线充电器)后，电源适配器可将交变电信号转换为直流电信号后输入给充电控制电路212，进而，充电控制电路212可以将该直流电信号转换为交变电信号，再向线充电线圈213输入该交变电信号，使得无线充电线圈213产生交变电磁场。
相应的，当TX设备为RX设备无线充电时，RX设备可通过无线充电线圈(即Rx线圈)223感应无线充电线圈(即Tx线圈)213发出的交变电磁场，从而产生交变电信号，并向充电控制电路222输入该交变电信号。充电控制电路222可以将该交变电信号整流成直流电信号，并将该直流电信号输入至电池221，为电池221充电，实现无线充电。
其中，无线充电时的充电效率与无线充电线圈223和无线充电线圈213之间的耦合系数K相关。耦合系数K是指无线充电线圈223和无线充电线圈213之间实际的互感(绝对值)与其最大极限值之比。当耦合系数K越大时，说明无线充电线圈223接收到的磁通量越多，充电效率越高。
耦合系数K取值区间可以为0到1。当耦合系数K趋近于1时，无线充电线圈213产生的所有磁通量几乎都被无线充电线圈223接收。当耦合系数K趋近于0时，无线 充电线圈213和无线充电线圈223相互独立，无线充电线圈223几乎接收不到无线充电线圈213产生的磁通量。
一般，耦合系数K的大小与无线充电线圈213和无线充电线圈223之间的距离、尺寸比例、角度、线圈形状、线圈材料以及磁芯材料等因素有关。
如图1所示，在现有技术中，RX设备(即手写笔101)可吸附在TX设备(即平板电脑101)的顶部进行无线充电。无线充电时，手写笔101中的RX线圈与平板电脑101中的TX线圈呈并排对称设置。此时，RX线圈可感应到靠近TX线圈一侧产生的交变电磁场，即RX线圈只能接收到TX线圈外部一侧产生的磁通量，使得TX线圈与RX线圈呈单侧耦合的状态。
而在本申请实施例中，可通过改变TX设备中无线充电线圈213和RX设备中无线充电线圈223之间位置关系，使无线充电线圈223收容于无线充电线圈213中。此时，无线充电线圈223可以感应到无线充电线圈213在各个方向产生的交变电磁场，从而增加无线充电线圈223接收到的磁通量，即增加无线充电线圈213和无线充电线圈223之间的耦合系数K，从而提高无线充电时的充电效率，后续实施例中将对此详细阐述，故此处不予赘述。
需要说明的是，TX设备也可以支持有线充电。仍如图2所示，当连接了电源的电源适配器1(即有线充电器)连接充电接口214时，充电控制电路212可将从充电接口214获取的电量输入电池211，为电池211充电。例如，该充电接口214可以是通用串行总线接口(universal serial bus，USB)接口。
类似的，RX设备也可以支持有线充电。仍如图2所示，RX设备的充电接口224用于连接电源适配器2为RX设备有线充电。其中，当连接了电源的电源适配器2连接充电接口224时，RX设备中各个器件交互为电池221充电的原理，可以参考TX设备的有线充电原理，此处不再赘述。
当然，RX设备或TX设备中还可以包括处理器、存储器或显示屏等一项或多项部件，本申请实施例对此不做任何限制。
基于上述无线充电原理，请参考图3，为本申请实施例提供的一种无线充电***的架构示意图。如图3所示，无线充电***300可以包括TX设备310和RX设备320。TX设备310上设置有收容结构301，收容结构301可用于收容RX设备320。
当RX设备320收容于上述收容结构301时，TX设备310可通过收容结构301向RX设备320发射无线充电信号，为RX设备320无线充电。
其中，RX设备320的设备形态可与收容结构301中收容腔的形态相匹配。例如，如图4中的(a)所示，当RX设备320为圆柱状的手写笔时，收容结构301中收容腔302的形状也可以相应的为圆柱状。又例如，如图4中的(b)所示，当RX设备320为长方体形状的手写笔时，收容结构301中收容腔302的形状也可以相应的为长方体。或者，收容结构301中收容腔302的形状也可以与手写笔等RX设备320的形状不同。例如，收容结构301中的收容腔302可以为圆柱状，而手写笔的截面可以为六边形，本申请实施例对此不做任何限制。
示例性的，TX设备110可以是蓝牙键盘、手机、平板电脑、桌面型、膝上型、手持计算机、笔记本电脑、超级移动个人计算机(ultra-mobile personal computer， UMPC)、上网本，以及蜂窝电话、个人数字助理(personal digital assistant，PDA)、增强现实(augmented reality，AR)\虚拟现实(virtual reality，VR)设备、车载设备等可以为其他设备无线充电的电子设备。
示例性的，RX设备120可以是手写笔、可穿戴设备(如智能手表等)、真无线立体声(true wireless stereo，TWS)耳机等可以接收其他设备的无线充电输入的电子设备。
以RX设备320为手写笔、TX设备310为蓝牙键盘举例，如图5所示，蓝牙键盘310上设置有收容结构301，收容结构301可用于收容手写笔320。例如，收容结构301中收容腔302的大小可与手写笔320的大小对应，收容结构301中收容腔302的形状可与手写笔320的形状对应。
在本申请实施例中，如图6中的(a)所示，可围绕收容结构301的收容腔302设置TX线圈(也可称为第一无线充电线圈)601。例如，可将TX线圈601围绕在非导磁材料的中空骨架上，形成上述收容结构301。此时，该中空骨架的内部即为上述收容腔302。相应的，如图6中的(b)所示，手写笔320内沿笔身或笔身的一部分设置有RX线圈(也可称为第二无线充电线圈)602。当手写笔320收容于收容结构301后，如图7所示，RX线圈602也随之收容于TX线圈601内。示例性的，RX线圈602收容至TX线圈601后，RX线圈602的轴线与TX线圈601的轴线平行或趋于平行。
示例性的，当TX线圈601与RX线圈602并列对称排布时，RX线圈602可感应到靠近TX线圈601一侧产生的交变电磁场。此时，TX线圈601与RX线圈602之间的耦合系数K1大约为0.25。由电磁感应原理可知，当RX线圈602收容于TX线圈601内部时，TX线圈601产生的磁感线可以更多的穿过RX线圈602，RX线圈602可感应到TX线圈601在各个方向上产生的交变电磁场。此时，TX线圈601与RX线圈602之间的耦合系数K2可提高至0.7。这样一来，当蓝牙键盘310(即TX设备)进行无线充电时的发射功率一定的情况下，由于耦合系数从0.25可提高至0.7，使得手写笔320(即RX设备)接收电能的接收效率显著增加，整个充电过程的充电速度更快、充电效率更高，TX设备因无线充电产生的功耗也随之降低。
在一些实施例中，还可以在手写笔320的RX线圈602中设置磁芯，例如铁氧体磁芯。当RX线圈602收容于TX线圈601内部时，RX线圈602可与TX线圈601共用RX线圈602中的磁芯，从而提高TX线圈601与RX线圈602之间的耦合系数K，使得整个充电过程的充电速度更快、充电效率更高。
并且，手写笔320收容于蓝牙键盘310的收容结构301后不易掉落，可降低手写笔320丢失的几率。
在一些实施例中，仍以TX设备为蓝牙键盘310举例，如图8所示(图8中所示的收容结构301为收容结构301的剖面图)，上述收容结构301具体可以包括壳体303、收容腔302和TX线圈601。TX线圈601可围绕收容腔302设置，收容腔302用于收容手写笔310，使得手写笔310中的RX线圈602收容于TX线圈601。需要说明的是，本领域技术人员可以按照实际需要设置TX线圈601中导线的绕制方向、导线的直径、导线的绕制层数以及绕制方式等，本申请实施例对此不做任何限制。
仍如图8所示，上述TX线圈601可与蓝牙键盘310中的第一充电控制电路801 连接，第一充电控制电路801可与蓝牙键盘310中的电池802连接。蓝牙键盘310在向手写笔320无线充电时，第一充电控制电路801可从电池802中获取对应的直流电信号。进而，充电控制电路802可以将该直流电信号转换为交变电信号，然后向TX线圈601输入该交变电信号，使得TX线圈601产生交变电磁场。
相应的，手写笔320中除了RX线圈602外还可以包括充电控制电路和电池。手写笔320中的RX线圈602可感应TX线圈601发出的交变电磁场，产生交变电信号，并将该交变电信号输出至手写笔320的充电控制电路。进而，手写笔320的充电控制电路可将接收到的交变电信号整流为直流电信号，进而将该直流电信号输入手写笔320的电池，实现无线充电。
或者，仍如图8所示，蓝牙键盘310中还可以设置充电接口803，例如USB接口。充电接口803可与第一充电控制电路801连接。蓝牙键盘310在向手写笔320无线充电时，还可以从充电接口803获取相应的电信号，进而根据获取到的电信号通过TX线圈601向手写笔320充电。
例如，蓝牙键盘310的充电接口803可接入电源适配器(例如有线充电器)。充电接口803接入电源适配器后，电源适配器可将获取到的交变电信号转换为直流电信号，进而将该直流电信号通过充电接口803传输至第一充电控制电路801。第一充电控制电路801可将该直流电信号转换为交变电信号，然后向TX线圈601输入该交变电信号，使得TX线圈601产生交变电磁场。
又例如，蓝牙键盘310的充电接口803可接入移动电源(例如充电宝)。充电接口803接入移动电源后，移动电源可输出直流电信号至充电接口803，进而，通过充电接口803将该直流电信号传输至第一充电控制电路801。第一充电控制电路801可将该直流电信号转换为交变电信号，然后向TX线圈601输入该交变电信号，使得TX线圈601产生交变电磁场。
又例如，如图9所示，蓝牙键盘310的充电接口803可接入手机、平板电脑等电子设备。此时，电子设备作为移动电源向蓝牙键盘310提供电信号。例如，蓝牙键盘310的充电接口803接入平板电脑901后，平板电脑901可输出直流电信号至充电接口803，进而，通过充电接口803将该直流电信号传输至第一充电控制电路801。第一充电控制电路801可将该直流电信号转换为交变电信号，然后向TX线圈601输入该交变电信号，使得TX线圈601产生交变电磁场。
需要说明的是，无论蓝牙键盘310的充电接口803接入电源适配器、移动电源或电子设备，蓝牙键盘310从充电接口803获取到的电信号不仅可以通过TX线圈601向手写笔320充电，还可以向蓝牙键盘310自身的电池802充电，本申请实施例对此不做任何限制。
在另一些实施例中，蓝牙键盘310还可以作为RX设备，通过无线充电的方式从其他电子设备获取电能。例如，如图10所示，蓝牙键盘310中除了可以设置TX线圈601外，还可以设置RX线圈(也可称为第三无线充电线圈)1001，RX线圈1001可与第二充电控制电路1002相连，第二充电控制电路1002与电池802相连，第二充电控制电路1002用于实现蓝牙键盘310作为RX设备时的无线充电过程。其中，RX线圈1001可用于感应其他TX设备(例如平板电脑、手机或者无线充电底座)产生的交变电磁场。 与上述无线充电原理类似的，RX线圈1001感应到TX设备产生的交变电磁场后可产生交变电信号，并将该交变电信号输出至第二充电控制电路1002。第二充电控制电路1002可将接收到的交变电信号整流为直流电信号，进而将该直流电信号输出至电池802，向蓝牙键盘310的电池802充电。
示例性的，以蓝牙键盘310作为RX设备与平板电脑901进行无线充电举例，如图11所示，蓝牙键盘310上设置有RX线圈1001，平板电脑901设置有TX线圈902。平板电脑901向蓝牙键盘310无线充电时，用户可将蓝牙键盘310上的RX线圈1001与平板电脑901上的TX线圈902靠近或接触。进而，与上述无线充电原理类似的，平板电脑901可通过TX线圈902产生交变电磁场，蓝牙键盘310可通过RX线圈1001感应该交变电磁场，产生交变电信号。进而，蓝牙键盘310的RX线圈1001可将产生的交变电信号输出至第二充电控制电路1002，由第二充电控制电路1002将接收到的交变电信号整流为直流电信号，进而将直流电信号输出至电池802。同时，第一充电控制电路801可从电池802获取直流电信号，并将直流电信号转换为交变电信号后输出至TX线圈601，使得TX线圈601产生交变电磁场向手写笔充电。
其中，上述第一充电控制电路801和第二充电控制电路1002可以设置在一个芯片中，也可以分别设置在不同的芯片中，本申请实施例对此不做任何限制。
在另一些实施例中，仍以TX设备为蓝牙键盘310举例，上述收容结构301可以为蓝牙键盘310中转轴的一部分。如图12所示，蓝牙键盘310可以包括键盘主体1201和盖板1202，键盘主体1201和盖板1202之间通过转轴1203铰接。其中，该转轴1203的套筒(或套筒的一部分)可以为上述收容结构301。这样，可以利用蓝牙键盘310中原本的转轴设置上述收容结构301，不需要额外增加机械结构即可实现对手写笔320的收纳，同时可增加对手写笔320的充电效率。
当然，除了上述蓝牙键盘310外，其他TX设备上也可以设置上述收容结构301用于收容手写笔等RX设备，以提高无线充电时的充电效率。以设置有折叠屏幕的手机(可称为折叠屏手机)举例，可在折叠屏手机中的转轴上设置上述收容结构301，既可以在折叠屏手机中收纳手写笔320，还可以提高对手写笔320的充电效率。又例如，可在平板电脑的侧边上设置上述收容结构301，同样可以在收纳手写笔320的同时提高对手写笔320的充电效率。其中，TX设备对RX设备无线充电的具体方法可参见上述实施例中蓝牙键盘310对手写笔310无线充电的方法，故此处不再赘述。
又或者，上述收容结构301也可以独立于TX设备(例如上述蓝牙键盘310)，此时，收容结构301可作为独立的设备形态与TX设备进行装配。当收容结构301与TX设备装配完成后，仍然可以收纳手写笔310等RX设备，提高对RX设备的充电效率，本申请实施例对此不做任何限制。
需要说明的是，上述蓝牙键盘310(即TX设备)与手写笔310(即RX设备)进行无线充电，可依据现有的无线充电协议进行无线充电。例如，该无线充电协议可以为Qi协议、(Power Matters Alliance，PMA)协议或者(Alliance for Wireless Power，A4WP)协议等任一协议，本申请实施例对此不做详细阐述。
本申请另一些实施例提供了一种电子设备，该电子设备可以包括上述收容结构301。其中，上述收容结构301中的TX线圈可与电子设备中的充电控制电路连接。该 充电控制电路可以为IC芯片等。
示例性的，如图13所示，为本申请实施例提供的一种电子设备的结构示意图。该电子设备可以包括收容结构301(收容结构301中设置有TX线圈)，处理器1310，外部存储器接口1320，内部存储器1321，通用串行总线(universal serial bus，USB)接口1330，充电管理模块1340，电池1341，天线1，天线2，移动通信模块1350，无线通信模块1360，音频模块1370，扬声器1370A，受话器1370B，麦克风1370C，耳机接口1370D，传感器模块1380，按键1390，马达1391，指示器1392，摄像头1393，显示屏1394，以及用户标识模块(subscriber identification module，SIM)卡接口1395等。
其中，传感器模块1380可以包括压力传感器，陀螺仪传感器，气压传感器，磁传感器，加速度传感器，距离传感器，接近光传感器，指纹传感器，温度传感器，触摸传感器，环境光传感器，骨传导传感器等。
可以理解的是，本发明实施例示意的结构并不构成对电子设备的具体限定。在本申请另一些实施例中，电子设备可以包括比图示更多或更少的部件(例如电子设备还可以包括RX线圈)，或者组合某些部件，或者拆分某些部件，或者不同的部件布置。图示的部件可以以硬件，软件或软件和硬件的组合实现。
处理器1310可以包括一个或多个处理单元，例如：处理器1310可以包括应用处理器(application processor，AP)，调制解调处理器，图形处理器(graphics processing unit，GPU)，图像信号处理器(image signal processor，ISP)，控制器，存储器，视频编解码器，数字信号处理器(digital signal processor，DSP)，基带处理器，和/或神经网络处理器(neural-network processing unit，NPU)等。其中，不同的处理单元可以是独立的器件，也可以集成在一个或多个处理器中。
处理器1310中还可以设置存储器，用于存储指令和数据。在一些实施例中，处理器1310中的存储器为高速缓冲存储器。该存储器可以保存处理器1310刚用过或循环使用的指令或数据。如果处理器1310需要再次使用该指令或数据，可从所述存储器中直接调用。避免了重复存取，减少了处理器1310的等待时间，因而提高了***的效率。
在一些实施例中，处理器1310可以包括一个或多个接口。接口可以包括集成电路(inter-integrated circuit，I2C)接口，集成电路内置音频(inter-integrated circuit sound，I2S)接口，脉冲编码调制(pulse code modulation，PCM)接口，通用异步收发传输器(universal asynchronous receiver/transmitter，UART)接口，移动产业处理器接口(mobile industry processor interface，MIPI)，通用输入输出(general-purpose input/output，GPIO)接口，用户标识模块(subscriber identity module，SIM)接口，和/或USB接口等。
USB接口1330是符合USB标准规范的接口，具体可以是Mini USB接口，Micro USB接口，USB Type C接口等。USB接口1330可以用于连接充电器(如图2所示的电源适配器1或电源适配器2)为电子设备充电，也可以用于电子设备与***设备之间传输数据。也可以用于连接耳机，通过耳机播放音频。该接口还可以用于连接其他电子设备或移动终端，例如AR设备等。
可以理解的是，本发明实施例示意的各模块间的接口连接关系，只是示意性说明， 并不构成对电子设备的结构限定。在本申请另一些实施例中，电子设备也可以采用上述实施例中不同的接口连接方式，或多种接口连接方式的组合。
充电管理模块1340具体可以为上述实施例中所述的充电控制电路(例如第一充电控制电路801或第二充电控制电路1002)，用于控制电子设备的充电过程。
在一些实施例中，电子设备可以支持有线充电。具体的，充电管理模块1340可以通过USB接口1330接收有线充电器的充电输入。
在另一些实施例中，电子设备可以支持正向无线充电，即电子设备为RX设备。此时，充电管理模块1340可以通过RX线圈接收无线充电输入。RX线圈可将产生的交变电信号传输至充电管理模块1340，以便为电池1341无线充电。
在另一些实施例中，电子设备可以支持反向无线充电，即电子设备为TX设备。具体的，充电管理模块1340还可以接收电池1341的输入，将电池1341输入的直流电信号转换为交变电信号，进而将该交变电信号传输至上述收容结构301的TX线圈。TX线圈接收到该交变电信号可以产生交变电磁场。其他移动终端(例如上述手写笔320)的RX线圈感应该交变电磁场后，可以进行无线充电。
其中，电子设备进行无线充电的详细描述，可以参考上述实例中TX设备进行无线充电的原理的介绍，本申请实施例这里不予赘述。
电子设备的无线通信功能可以通过天线1，天线2，移动通信模块1350，无线通信模块1360，调制解调处理器以及基带处理器等实现。
天线1和天线2用于发射和接收电磁波信号。电子设备中的每个天线可用于覆盖单个或多个通信频带。不同的天线还可以复用，以提高天线的利用率。例如：可以将天线1复用为无线局域网的分集天线。在另外一些实施例中，天线可以和调谐开关结合使用。
移动通信模块1350可以提供应用在电子设备上的包括2G/3G/4G/5G等无线通信的解决方案。无线通信模块1360可以提供应用在电子设备上的包括无线局域网(wireless local area networks，WLAN)(如无线保真(wireless fidelity，Wi-Fi)网络)，蓝牙(bluetooth，BT)，全球导航卫星***(global navigation satellite system，GNSS)，调频(frequency modulation，FM)，NFC，红外技术(infrared，IR)等无线通信的解决方案。在一些实施例中，电子设备的天线1和移动通信模块1350耦合，天线2和无线通信模块1360耦合，使得电子设备可以通过无线通信技术与网络以及其他设备通信。
电子设备通过GPU，显示屏1394，以及应用处理器等实现显示功能。GPU为图像处理的微处理器，连接显示屏1394和应用处理器。GPU用于执行数学和几何计算，用于图形渲染。处理器1310可包括一个或多个GPU，其执行程序指令以生成或改变显示信息。
显示屏1394用于显示图像，视频等。显示屏1394包括显示面板。在一些实施例中，电子设备可以包括1个或N个显示屏1394，N为大于1的正整数。
电子设备可以通过ISP，摄像头1393，视频编解码器，GPU，显示屏1394以及应用处理器等实现拍摄功能。ISP用于处理摄像头1393反馈的数据。在一些实施例中，ISP可以设置在摄像头1393中。摄像头1393用于捕获静态图像或视频。在一些实施 例中，电子设备可以包括1个或N个摄像头1393，N为大于1的正整数。
外部存储器接口1320可以用于连接外部存储卡，例如Micro SD卡，实现扩展电子设备的存储能力。外部存储卡通过外部存储器接口1320与处理器1310通信，实现数据存储功能。例如将音乐，视频等文件保存在外部存储卡中。
内部存储器1321可以用于存储计算机可执行程序代码，所述可执行程序代码包括指令。处理器1310通过运行存储在内部存储器1321的指令，从而执行电子设备的各种功能应用以及数据处理。此外，内部存储器1321可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件，闪存器件，通用闪存存储器(universal flash storage，UFS)等。
电子设备可以通过音频模块1370，扬声器1370A，受话器1370B，麦克风1370C，耳机接口1370D，以及应用处理器等实现音频功能。例如音乐播放，录音等。
音频模块1370用于将数字音频信息转换成模拟音频信号输出，也用于将模拟音频输入转换为数字音频信号。在一些实施例中，音频模块1370可以设置于处理器1310中，或将音频模块1370的部分功能模块设置于处理器1310中。扬声器1370A，也称“喇叭”，用于将音频电信号转换为声音信号。受话器1370B，也称“听筒”，用于将音频电信号转换成声音信号。麦克风1370C，也称“话筒”，“传声器”，用于将声音信号转换为电信号。电子设备可以设置至少一个麦克风1370C。耳机接口1370D用于连接有线耳机。耳机接口1370D可以是USB接口1330，也可以是3.5mm的开放移动电子设备平台(open mobile terminal platform，OMTP)标准接口，美国蜂窝电信工业协会(cellular telecommunications industry association of the USA，CTIA)标准接口。
电子设备还可以包括按键1390、马达1391、指示器1392(例如指示灯)或SIM卡接口1395等部件，本申请实施例对此不做任何限制。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。上述描述的***，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请实施例各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：快闪存储器、移动硬盘、只读存储器、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请实施例的具体实施方式，但本申请实施例的保护范围并不局限于此，任何在本申请实施例揭露的技术范围内的变化或替换，都应涵盖在本申请实施例的保护范围之内。因此，本申请实施例的保护范围应以所述权利要求的保护范围为准。

Claims (9)

  1. 一种无线充电装置，其特征在于，所述装置包括收容结构(301)和第一充电控制电路(801)；
    所述收容结构(301)包括收容腔(302)和第一无线充电线圈(601)，所述第一无线充电线圈(601)围绕所述收容腔(302)设置；所述第一无线充电线圈(601)与所述第一充电控制电路(801)连接，所述第一充电控制电路(801)用于向所述第一无线充电线圈(601)输出交变电信号，使得所述第一无线充电线圈(601)产生交变电磁场；
    其中，所述收容腔(302)用于收容手写笔(320)，所述手写笔(320)中设置有第二无线充电线圈(602)；当所述手写笔(320)收容于所述收容腔(302)时，所述第二无线充电线圈(602)收容于所述第一无线充电线圈(601)，使得所述第二无线充电线圈(602)感应所述第一无线充电线圈(601)产生的交变电磁场，与所述第一无线充电线圈(601)产生耦合。
  2. 根据权利要求1所述的装置，其特征在于，所述收容腔(302)的大小与所述手写笔(320)的大小对应，所述收容腔(302)的形状与所述手写笔(320)的形状对应。
  3. 根据权利要求1所述的装置，其特征在于，所述装置还包括电池(802)，所述电池(802)与所述第一充电控制电路(801)相连；
    所述电池(802)用于向所述第一充电控制电路(801)输出直流电信号；所述第一充电控制电路(801)用于将所述直流电信号转换为交变电信号。
  4. 根据权利要求1所述的装置，其特征在于，所述装置还包括充电接口(803)，所述充电接口(803)与所述第一充电控制电路(801)相连；
    所述充电接口(803)用于从电源适配器、移动电源或第一电子设备中获取直流电信号，并将所述直流电信号输出至所述第一充电控制电路(801)；所述第一充电控制电路(801)用于将所述直流电信号转换为交变电信号。
  5. 根据权利要求1所述的装置，其特征在于，所述装置还包括第三无线充电线圈(1001)，所述第三无线充电线圈(1001)与第二充电控制电路(1002)连接；
    所述第三无线充电线圈(1001)用于接收第二电子设备产生的交变电磁场，产生交变电信号，并将产生的交变电信号输出至所述第二充电控制电路(1002)。
  6. 根据权利要求5所述的装置，其特征在于，所述第二充电控制电路(1002)与电池(802)连接；其中，所述第二充电控制电路(1002)将接收到的交变电信号整流为直流电信号，并将所述直流电信号输出至所述电池(802)。
  7. 根据权利要求1-6中任一项所述的装置，其特征在于，所述收容结构(301)还包括壳体(303)，第一无线充电线圈(601)设置在所述壳体(303)与所述收容腔(302)之间。
  8. 根据权利要求1-6中任一项所述的装置，其特征在于，所述装置为蓝牙键盘，所述蓝牙键盘包括键盘主体(1201)和盖板(1202)，所述键盘主体(1201)和盖板之间通过转轴(1203)铰接；其中，所述转轴(1203)的部分或全部为所述收容结构(301)。
  9. 一种电子设备，其特征在于，所述电子设备包括：
    一个或多个处理器；
    存储器；
    如权利要求1-8中任一项所述的无线充电装置。
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