WO2022247347A1 - 触控笔及电子设备组件 - Google Patents

触控笔及电子设备组件 Download PDF

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Publication number
WO2022247347A1
WO2022247347A1 PCT/CN2022/075648 CN2022075648W WO2022247347A1 WO 2022247347 A1 WO2022247347 A1 WO 2022247347A1 CN 2022075648 W CN2022075648 W CN 2022075648W WO 2022247347 A1 WO2022247347 A1 WO 2022247347A1
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WO
WIPO (PCT)
Prior art keywords
assembly
stylus
electrode
main shaft
pressure sensor
Prior art date
Application number
PCT/CN2022/075648
Other languages
English (en)
French (fr)
Inventor
彭永锋
赵勇
牟欣
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.)
Filing date
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 EP22731978.7A priority Critical patent/EP4116804B1/en
Priority to US17/788,232 priority patent/US20240168572A1/en
Publication of WO2022247347A1 publication Critical patent/WO2022247347A1/zh

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    • 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
    • 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
    • G06F1/1632—External expansion units, e.g. docking stations
    • 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
    • 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
    • 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
    • G06F3/0346—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
    • 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
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0442—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using active external devices, e.g. active pens, for transmitting changes in electrical potential to be received by the digitiser
    • 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
    • G06F2200/1633—Protecting arrangement for the entire housing of the computer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04114—Touch screens adapted for alternating or simultaneous interaction with active pens and passive pointing devices like fingers or passive pens

Definitions

  • the present application relates to the technical field of terminals, and in particular to a stylus and electronic equipment components.
  • stylus is mainly divided into inductive stylus and capacitive stylus.
  • a stylus usually includes a pen holder and a nib connected to one end of the pen holder.
  • a capacitive stylus is usually provided with electrodes, a pressure-sensitive component and a circuit board. Can be set inside the pen holder. Both the electrodes and the pressure-sensing components are electrically connected to the circuit board, and the circuit board provides signals to the electrodes and controls the electrodes to send signals to the electronic equipment to determine the position of the stylus;
  • the pressure-sensing components usually include a spindle, a force-transmitting member and a strain gauge, and the spindle Connected with the pen tip, the force transmission part is set on the main shaft, the strain gauge is attached to the end of the force transmission part facing the circuit board, the strain gauge is electrically connected to the circuit board, the main shaft drives the force transmission part to deform, and the strain gauge detects the deformation force of the force transmission part And transmitted to the circuit board, the circuit board detects the pressure of the pen tip according to the deformation force and controls the
  • the existing stylus transmits pressure-sensitive signals by detecting the deformation force of the force-transmitting parts through strain gauges.
  • strain gauges There are many devices arranged in the stylus, the manufacturing and assembly process is complicated, and the cost is high.
  • the present application provides a stylus and electronic equipment components.
  • the stylus has fewer internal components, simple manufacturing and assembly process, and low cost.
  • One aspect of the present application provides a stylus, including a pen holder assembly and a pen tip assembly, the pen tip assembly is located at one end of the pen holder assembly and has a gap with the pen holder assembly;
  • first electrode It also includes a first electrode, a second electrode, a signal board, a main shaft, a pressure sensor assembly, a control board and a flexible electrical connection assembly.
  • One end of the first electrode is located at the writing end of the nib assembly, and the signal board extends into the nib assembly and connects with the first The other end of the electrode is connected, and the second electrode is sleeved on the signal board and electrically connected with the signal board;
  • the pressure sensor assembly is fixed in the pen holder assembly, one end of the main shaft is connected to the pen tip assembly, the other end of the main shaft is in contact with the pressure sensor assembly, and the pressure sensor assembly is electrically connected to the control board; one end of the flexible electrical connection assembly is connected to the signal board, and the flexible electrical connection The other end of the connecting component is electrically connected to the control board; wherein, there is a bent portion between the two ends of the flexible electrical connecting component.
  • the main shaft and the pressure sensor assembly are arranged in the stylus, one end of the main shaft is connected to the nib assembly, the pressure sensor assembly is fixed in the pen holder assembly and contacts the other end of the main shaft, and the nib assembly moves under force Drive the spindle to move, the spindle moves toward the pen holder assembly and transmits the pressure of the pen tip assembly to the pressure sensor assembly, and detects the pressure of the pen tip assembly through the pressure sensor assembly; in this way, the transmission method of the pressure of the pen tip assembly is simplified, and the parts set in the stylus Less, the production and assembly process of the stylus is simple, the cost of the stylus is reduced, and the detection accuracy of the pressure of the nib assembly can be improved, and the accuracy of the writing thickness of the nib assembly can be improved.
  • the size of the first electrode is reduced, the distance between the first electrode and the touch screen is shortened, and the electronic device is more sensitive to the stylus.
  • the electronic device improves the measurement accuracy of the inclination angle of the stylus relative to the touch screen.
  • the two ends of the flexible electrical connection component are respectively connected to the signal board and the control board to realize the signal transmission between the signal board and the control board.
  • the flexible electrical connection component has a certain elongation margin, so as to prevent the flexible electrical connection component from being pulled and torn or damaged when the pen tip component moves away from the pen barrel component, thereby ensuring the long-term use performance of the flexible electrical connection component.
  • the pressure sensor assembly includes a pressure sensor and an electrical connector, one side surface of the pressure sensor abuts against the end of the main shaft, the electrical connector is connected to the other side surface of the pressure sensor, and the electrical connector Electrically connected to the control board.
  • the central axes of the main shaft and the pressure sensor coincide with the central axis of the penholder assembly.
  • the pressure of the pen tip assembly is transmitted to the pressure sensor along a straight line, which improves the linearity and isotropy of the force and improves the pressure sensor’s ability to detect the pressure of the pen tip assembly. Accuracy.
  • the pressure sensor assembly further includes a buffer member, and the buffer member is attached to a surface of the electrical connector away from the pressure sensor.
  • the buffer can buffer the force acting on the pressure sensor, avoiding damage to the pressure sensor due to excessive pressure, and ensuring the working performance of the pressure sensor.
  • the stylus pen further includes a fixing bracket, which is fixed in the pen barrel assembly, and the fixing bracket includes a main body with an accommodation chamber, the opening of the accommodation chamber faces the main shaft, and the pressure sensor assembly is located in the accommodation chamber.
  • the pressure sensor assembly is installed in the fixed bracket by fixing the fixing bracket in the pen holder assembly, and the pressure sensor assembly is fixed in the pen holder assembly.
  • the fixing bracket further includes a support plate, the support plate is connected to a side of the main body away from the main shaft, and one end of the control board is connected to the support plate.
  • the stylus further includes an insulating sleeve, the insulating sleeve is sleeved on the signal board, the second electrode is sleeved on the outer wall of the insulating sleeve, and a part of the insulating sleeve extends into the main shaft Internally connected to the main shaft;
  • the insulating sleeve is provided with a first through hole
  • the signal board is covered with a first conductive member
  • part of the second electrode extends into the first through hole to contact with the first conductive member
  • the second electrode is sleeved on the outer wall of the insulating sleeve, and the second electrode passes through the first through hole on the insulating sleeve and the first conductive member sleeved on the signal board contact to realize the electrical connection between the second electrode and the signal board; the insulating sleeve can fix the second electrode, and the interference between the second electrode and the signal board can also be weakened through the insulation and isolation function of the insulating sleeve.
  • the stylus further includes a ground electrode, the ground electrode is sleeved on the outer wall of the insulating sleeve, and the ground electrode is located on a side of the second electrode close to the first electrode;
  • the insulating sleeve is provided with a second through hole
  • the signal board is covered with a second conductive member
  • a part of the ground electrode extends into the second through hole to contact the second conductive member.
  • the ground electrode By setting the ground electrode on the insulating sleeve, the ground electrode contacts the second conductive member set on the signal board through the second through hole on the insulating sleeve, so as to realize the electrical connection between the ground electrode and the signal board, and the ground electrode Located between the first electrode and the second electrode, the ground electrode can weaken the interference between the first electrode and the second electrode, and improve the detection accuracy of the position and tilt angle of the touch pen by the electronic device.
  • the stylus also includes a fixed sleeve, the fixed sleeve is fixed in the pen barrel assembly, the main shaft extends into the fixed sleeve, and the outer wall of the end of the main shaft facing the pen tip assembly is provided with a first stop part; the first limiting part is used to abut against the end of the fixed sleeve facing the pen tip assembly when the pen tip assembly moves towards the pen holder assembly.
  • the main shaft By setting a fixed sleeve in the penholder assembly, the main shaft extends into the fixed sleeve, the main shaft moves in the fixed sleeve, and the inner wall of the fixed sleeve guides the movement of the main shaft, which can prevent the main shaft from shifting during the movement and ensure the main shaft Move along the axial direction of the pen holder assembly to improve the accuracy of the force transmission of the main shaft.
  • the distance between the first limiter and the fixed sleeve can be smaller than the gap between the pen tip assembly and the pen holder assembly.
  • an elastic member is sleeved on the outer wall of the main shaft, and a second limiting portion is provided on the outer wall of the end of the main shaft away from the nib assembly, and the elastic member is clamped on the end of the fixed sleeve away from the nib assembly and between the second limiting parts.
  • an elastic member is sleeved on the outer wall of the main shaft, and the elastic member is clamped between the end of the fixed sleeve and the second limit part. In the compressed state, ensure that the main shaft is in good contact with the pressure sensor, and ensure the accuracy of the pressure sensor detecting the pressure of the nib assembly.
  • a limiting column is provided at one end of the fixing sleeve facing the fixing bracket, a limiting groove is provided on the side wall of the main body of the fixing bracket, and the limiting column is snapped into the limiting groove.
  • the side wall of the fixed bracket is provided with a limit groove that cooperates with the limit column, and the limit column is snapped into the limit groove to prevent both the fixed sleeve and the fixed bracket from Rotate relative to each other, so that the fixing sleeve and the fixing bracket are firmly fixed in the pen holder assembly.
  • the side wall of the main shaft is provided with a first mounting hole
  • the side wall of the fixing sleeve is provided with a second mounting hole
  • the second mounting hole communicates with the first mounting hole
  • the flexible electrical connection assembly One end of the shaft protrudes into the main shaft through the second mounting hole and the first mounting hole to connect with the signal board.
  • the flexible electrical connection assembly includes a flexible circuit board and an electrical connector, the electrical connector is connected to one end of the flexible circuit board facing the control board, and the bending part is located on the flexible circuit board;
  • the flexible circuit board extends along the outer wall of the fixing bracket and the fixing sleeve, and the bent portion passes through the second installation hole and the first installation hole, so that the end of the flexible circuit board is attached to the signal board.
  • the upper cover of the second installation hole of the fixing sleeve is provided with an end cover.
  • the stylus further includes a reinforcing member, and the reinforcing member covers a part of the two sides of the signal board.
  • the reinforcements can increase the strength of the signal board, avoid deviation or bending of the signal board, and ensure the performance of the signal board.
  • the first electrode is a transmitting electrode
  • the second electrode includes a signal transmitting module and a signal receiving module.
  • the second electrode can not only send the excitation signal to the electronic device, but also receive the signal sent by the electronic device.
  • the space in the stylus is saved, and the stylus is easy to assemble.
  • Another aspect of the present application provides an electronic device assembly, including the electronic device and the stylus described in any one of the above items.
  • the electronic device assembly provided by the present application includes a stylus. By setting a spindle and a pressure sensor assembly in the stylus, one end of the spindle is connected to the nib assembly, and the pressure sensor assembly is fixed in the penholder assembly and contacts the other end of the spindle.
  • the force movement of the component drives the main shaft to move, the main shaft moves towards the pen holder component and transmits the pressure of the pen tip component to the pressure sensor component, and detects the pressure of the pen tip component through the pressure sensor component; in this way, the pressure transmission method of the pen tip component is simplified, and the stylus There are fewer parts inside, the production and assembly process of the stylus is simple, the cost of the stylus is reduced, and the detection accuracy of the pressure of the stylus assembly can be improved, and the accuracy of the writing thickness of the stylus assembly can be improved.
  • the size of the first electrode is reduced, the distance between the first electrode and the touch screen is shortened, and the electronic device is more sensitive to the stylus.
  • the electronic device improves the measurement accuracy of the inclination angle of the stylus relative to the touch screen.
  • the two ends of the flexible electrical connection component are respectively connected to the signal board and the control board to realize the signal transmission between the signal board and the control board.
  • the flexible electrical connection component has a certain elongation margin, so as to prevent the flexible electrical connection component from being pulled and torn or damaged when the pen tip component moves away from the pen barrel component, thereby ensuring the long-term use performance of the flexible electrical connection component.
  • the electronic device assembly further includes: a wireless keyboard, and the wireless keyboard has a storage portion for storing a stylus.
  • FIG. 1 is a schematic diagram of a scene applicable to an embodiment of the present application
  • FIG. 2A is a schematic structural diagram of a stylus provided in an embodiment of the present application.
  • FIG. 2B is a schematic diagram of a partially disassembled structure of the stylus provided in the embodiment of the present application.
  • FIG. 3 is a schematic diagram of the interaction between the stylus and the electronic device provided by the embodiment of the present application.
  • FIG. 4 is a schematic diagram of the assembly of the stylus and the wireless keyboard provided by the embodiment of the present application.
  • FIG. 5A is a schematic diagram of a stylus provided in an embodiment of the present application stored in a storage portion of a wireless keyboard;
  • FIG. 5B is a schematic side view of the stylus provided by the embodiment of the present application when it is stored in the storage part of the wireless keyboard;
  • FIG. 6 is a schematic diagram of a hardware structure of a stylus provided in an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a hardware structure of an electronic device provided in an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a hardware structure of a wireless keyboard provided by an embodiment of the present application.
  • FIG. 9 is a partial structural diagram of a stylus provided in an embodiment of the present application.
  • Figure 10 is an exploded view of Figure 9;
  • Fig. 11 is the front view of Fig. 9;
  • Fig. 12 is a sectional view along A-A in Fig. 11;
  • Fig. 13 is a front view after removing the nib assembly in Fig. 9;
  • Fig. 14 is a sectional view along B-B in Fig. 13 .
  • 110-processor 120-pressure sensor; 130-inertial sensor; 140-status indicator; 150-button; 160-electrode; 170-sensing circuit; 180-Bluetooth module; 190-charging module;
  • 210-processor 220-input surface; 230-coordination engine; 240-power subsystem; 250-power connector; 260-wireless interface; 270-display;
  • 310-processor 320-memory; 330-charging interface; 340-charging management module; 350-wireless charging coil; 360-battery; 370-wireless communication module; 380-touch panel; 390-keyboard;
  • 10-nib assembly 10a-gap; 11-writing end; 12-connecting end; 20-penholder assembly; 30-back cover; 41-first emitting electrode; 42-second emitting electrode; 1st electrode; 45-second electrode; 50-spindle assembly; 51-external thread; 60-pressure-sensitive assembly; 70-circuit board; 80-battery assembly; 90-pressure sensor assembly;
  • 21-fixing bracket 22-insulating sleeve; 23-fixing sleeve; 52-main shaft; 71-signal board; 72-flexible electrical connection assembly; 91-pressure sensor; 92-electrical connector;
  • 2111-Accommodating cavity 2112-Limiting groove; 2113-Positioning hole; 2114-Installing groove; 7211-Bending part.
  • FIG. 1 is a schematic diagram of a scene applicable to an embodiment of the present application.
  • the scene includes a stylus (stylus) 100 , an electronic device 200 and a wireless keyboard 300 .
  • the electronic device 200 is a tablet computer (tablet) as an example for illustration.
  • the stylus 100 and the wireless keyboard 300 may provide input to the electronic device 200 , and the electronic device 200 performs an operation in response to the input based on the stylus 100 or the wireless keyboard 300 .
  • a touch area can be set on the wireless keyboard 300 , and the stylus 100 can operate the touch area of the wireless keyboard 300 to provide input to the wireless keyboard 300 , and the wireless keyboard 300 can perform an operation in response to the input based on the stylus 100 .
  • between the stylus 100 and the electronic device 200, between the stylus 100 and the wireless keyboard 300, and between the electronic device 200 and the wireless keyboard 300, can be interconnected through a communication network to realize wireless communication. signal interaction.
  • the communication network can be but not limited to: WI-FI hotspot network, WI-FI point-to-point (peer-to-peer, P2P) network, Bluetooth network, zigbee network or near field communication (near field communication, NFC) network and other short-distance Communications network.
  • the stylus 100 can be, but not limited to: an inductive pen and a capacitive pen.
  • the electronic device 200 has a touch screen 201 , and when the stylus 100 is an inductive pen, the touch screen 201 of the electronic device 200 interacting with the stylus 100 needs to integrate an electromagnetic induction board. Coils are distributed on the electromagnetic induction board, and coils are also integrated in the inductive pen. Based on the principle of electromagnetic induction, within the range of the magnetic field generated by the electromagnetic induction board, as the inductive pen moves, the inductive pen can store electric energy. The inductive pen can transmit the accumulated electric energy to the electromagnetic induction board through the coil in the inductive pen through free oscillation. The electromagnetic induction board can scan the coil on the electromagnetic induction board based on the electric energy from the inductive pen, and calculate the position of the inductive pen on the touch screen 201 .
  • the touch screen 201 in the electronic device 200 may also be called a touch screen.
  • Capacitive pens can include: passive capacitive pens and active capacitive pens.
  • a passive capacitive pen can be called a passive capacitive pen, and an active capacitive pen can be called an active capacitive pen.
  • One or more electrodes can be set in the active capacitive pen (for example, in the tip assembly), and the active capacitive pen can transmit signals through the electrodes.
  • the stylus 100 is an active capacitive stylus
  • an electrode array needs to be integrated on the touch screen 201 of the electronic device 200 interacting with the stylus 100 .
  • the electrode array may be a capacitive electrode array.
  • the electronic device 200 can receive a signal from the active capacitive stylus through the electrode array, and when receiving the signal, recognize the position of the active capacitive stylus on the touch screen based on the change of the capacitance value on the touch screen 201, and actively The inclination angle of the capacitive pen.
  • FIG. 2A is a schematic structural diagram of a stylus provided by an embodiment of the present application.
  • the stylus 100 may include a tip assembly 10 , a barrel assembly 20 and a back cover 30 .
  • the interior of the penholder assembly 20 is a hollow structure, the nib assembly 10 and the back cover 30 are respectively located at the two ends of the penholder assembly 20, the back cover 30 and the penholder assembly 20 can be plugged or engaged, and the nib assembly 10 and the penholder assembly 20 See the description of FIG. 2B for details of the coordination relationship between them.
  • FIG. 2B is a schematic diagram of a partially disassembled structure of the stylus provided by the embodiment of the present application.
  • the stylus 100 further includes a spindle assembly 50 located in the pen barrel assembly 20 , and the spindle assembly 50 is slidably disposed in the pen barrel assembly 20 .
  • the main shaft assembly 50 has an external thread 51
  • the nib assembly 10 includes a writing end 11 and a connecting end 12 , wherein the connecting end 12 of the pen tip assembly 10 has an internal thread (not shown) matching the external thread 51 .
  • the connecting end 12 of the nib assembly 10 protrudes into the pen holder assembly 20 and is threadedly connected with the external thread 51 of the spindle assembly 50 .
  • the connection between the connecting end 12 of the pen tip assembly 10 and the spindle assembly 50 may also be detachably connected by snap-fitting or the like. The replacement of the nib assembly 10 is realized through the detachable connection between the connecting end 12 of the nib assembly 10 and the spindle assembly 50 .
  • the pen tip assembly 10 in order to detect the pressure received by the writing end 11 of the nib assembly 10, as shown in FIG.
  • the pen tip assembly 10 can move towards the pen barrel assembly 20 , and the movement of the pen tip assembly 10 will drive the spindle assembly 50 to move in the pen barrel assembly 20 .
  • the detection of external force with reference to shown in Figure 2B, be provided with pressure-sensitive assembly 60 on the main shaft assembly 50, the part of pressure-sensitive assembly 60 is fixedly connected with the fixed structure in pen holder assembly 20, the part of pressure-sensitive assembly 60 is connected with main shaft assembly 50 are fixedly connected.
  • the circuit board 70 for example, the electrical connection between the pressure-sensitive component 60 and the circuit board 70 can be realized through a wire or a flexible circuit board
  • the circuit board 70 detects the position of the writing end 11 of the nib component 10 according to the deformation of the pressure-sensitive component 60. pressure, so as to control the line thickness of the writing end 11 according to the pressure of the writing end 11 of the nib assembly 10 .
  • the pressure detection of the pen tip assembly 10 includes but not limited to the above methods.
  • a pressure sensor may also be provided in the writing end 11 of the pen tip assembly 10 to detect the pressure of the nib assembly 10 by the pressure sensor.
  • the stylus 100 further includes a plurality of electrodes, for example, the plurality of electrodes may be the first emitting electrode 41 , the ground electrode 43 and the second emitting electrode 42 .
  • the first emitter electrode 41 , the ground electrode 43 and the second emitter electrode 42 are all electrically connected to the circuit board 70 .
  • the first emitter electrode 41 can be located in the nib assembly 10 and close to the writing end 11, and the circuit board 70 can be configured as a control board that can provide signals to the first emitter electrode 41 and the second emitter electrode 42 respectively, and the first emitter electrode 41 is used for For transmitting the first signal, when the first emitting electrode 41 is close to the touch screen 201 of the electronic device 200, a coupling capacitance can be formed between the first emitting electrode 41 and the touch screen 201 of the electronic device 200, so that the electronic device 200 can receive to the first signal.
  • the second transmitting electrode 42 is used for transmitting a second signal, and the electronic device 200 can determine the inclination angle of the stylus 100 according to the received second signal.
  • the second emitting electrode 42 may be located on the inner wall of the pen holder assembly 20 . In one example, the second emitter electrode 42 may also be located on the spindle assembly 50 .
  • the ground electrode 43 can be located between the first emitter electrode 41 and the second emitter electrode 42, or the ground electrode 43 can be located on the outer periphery of the first emitter electrode 41 and the second emitter electrode 42, and the ground electrode 43 is used to reduce the first emitter electrode 43.
  • the electrode 41 and the second emitter electrode 42 are coupled to each other.
  • the electronic device 200 When the electronic device 200 receives the first signal from the stylus 100 , the capacitance value at the corresponding position of the touch screen 201 will change. Accordingly, the electronic device 200 can determine the position of the stylus 100 (or the nib assembly of the stylus 100 ) on the touch screen 201 based on the change of the capacitance value on the touch screen 201 . In addition, the electronic device 200 may acquire the inclination angle of the stylus 100 by using a double-tip projection method in the inclination detection algorithm.
  • the positions of the first emitting electrode 41 and the second emitting electrode 42 in the stylus 100 are different, so when the electronic device 200 receives the first signal and the second signal from the stylus 100, the two signals on the touch screen 201 The capacitance value at each position will change.
  • the electronic device 200 can obtain the tilt angle of the stylus 100 according to the distance between the first emitter electrode 41 and the second emitter electrode 42, and the distance between two positions on the touch screen 201 where the capacitance value changes,
  • the inclination angle of the stylus 100 For more detailed acquisition of the inclination angle of the stylus 100 , reference may be made to the relevant description of the dual-tip assembly projection method in the prior art.
  • the stylus 100 further includes: a battery assembly 80 , and the battery assembly 80 is used to provide power to the circuit board 70 .
  • the battery pack 80 may include a lithium ion battery, or, the battery pack 80 may include a nickel-chromium battery, an alkaline battery or a nickel-hydrogen battery or the like.
  • the battery included in the battery assembly 80 can be a rechargeable battery or a disposable battery, wherein, when the battery included in the battery assembly 80 is a rechargeable battery, the stylus 100 can charge the battery assembly wirelessly. 80 to charge the battery.
  • FIG. 3 is a schematic diagram of the interaction between the stylus and the electronic device provided by the embodiment of the present application; referring to FIG.
  • the device 200 can send an uplink signal to the stylus 100 through the electrode array integrated on the touch screen 201 .
  • the stylus 100 can receive the uplink signal through the receiving electrodes, and the stylus 100 can transmit the downlink signal through the transmitting electrodes (such as the first transmitting electrode 41 and the second transmitting electrode 42 ).
  • the downlink signal includes the above-mentioned first signal and second signal.
  • the electronic device 200 can determine the capacitance of the stylus 100 based on the capacitance value on the touch screen 201.
  • the position of the nib assembly 10 on the touch screen 201 may be square wave signals.
  • FIG. 4 is a schematic diagram of the assembly of the stylus and the wireless keyboard provided by the embodiment of the present application.
  • a wireless keyboard 300 may include a first part 301 and a second part 302 .
  • the wireless keyboard 300 may include: a keyboard body and a keyboard case.
  • the first part 301 may be a keyboard case
  • the second part 302 is a keyboard body.
  • the first part 301 is used to place the electronic device 200
  • the second part 302 may be provided with buttons, a touch panel, etc. for user operations.
  • the first part 301 and the second part 302 of the wireless keyboard 300 need to be opened, and when the wireless keyboard 300 is not in use, the first part 301 and the second part 302 of the wireless keyboard 300 can be closed.
  • the first part 301 and the second part 302 of the wireless keyboard 300 can be rotatably connected.
  • the first part 301 and the second part 302 may be connected by a rotating shaft or a hinge, or, in some examples, the first part 301 and the second part 302 may be rotationally connected by a flexible material (such as leather material or cloth material) .
  • the first part 301 and the second part 302 can be integrally formed, and the joint between the first part 301 and the second part 302 is thinned, so that the connection between the first part 301 and the second part 302 The connection can be bent.
  • the connection manner between the first part 301 and the second part 302 may include but not limited to the above-mentioned several rotational connection manners.
  • the first part 301 may include at least two rotatably connected brackets.
  • the first part 301 includes a first bracket 301a and a second bracket 301b, which are rotationally connected between the first bracket 301a and the second bracket 301b.
  • the first bracket 301a and the second bracket can be used 301b together support the electronic device 200 (refer to FIG. 1 ).
  • the first bracket 301 a supports the second bracket 301 b
  • the second bracket 301 b supports the electronic device 200 .
  • the second bracket 301b is connected to the second part 302 in rotation.
  • the wireless keyboard 300 may be provided with a storage portion 303 for storing the stylus 100 .
  • the storage portion 303 is a cylindrical cavity, and when stored, the stylus 100 is inserted into the storage cavity along the direction of the arrow in FIG. 4 .
  • the second part 302 and the second bracket 301 b are rotationally connected through a connection part 304 , and a receiving part 303 is disposed in the connection part 304 .
  • the connecting portion 304 can be a rotating shaft, so a cavity can be opened in the rotating shaft to form the receiving portion 303 .
  • the receiving portion 303 may also be disposed on the surface of the connecting portion 304 , or the receiving portion 303 may also be disposed close to the connecting portion 304 .
  • FIG. 5A is a schematic diagram of the stylus provided by the embodiment of the present application stored in the storage part of the wireless keyboard
  • FIG. 5B is a schematic side view of the stylus provided by the embodiment of the present application stored in the storage part of the wireless keyboard.
  • the receiving portion 303 is a circular cavity, and the inner diameter of the receiving portion 303 is larger than the outer diameter of the stylus 100 .
  • a magnetic material may be disposed on the inner wall of the storage portion 303 , and a magnetic material may be disposed in the stylus 100 .
  • the stylus 100 is attracted in the storage portion 303 by the magnetic adsorption between the magnetic materials.
  • the fixing between the stylus 100 and the storage portion 303 includes but is not limited to the use of magnetic adsorption to achieve fixation.
  • the stylus 100 and the storage portion 303 can also be fixed by means of engagement .
  • a pop-up structure can be set in the storage portion 303, for example, when one end of the stylus 100 is pressed, the pop-up mechanism can drive one end of the stylus 100 to go outward from the storage portion 303. pop up.
  • FIG. 6 is a schematic diagram of a hardware structure of a stylus provided by an embodiment of the present application.
  • the stylus 100 may have a processor 110 .
  • Processor 110 may include storage and processing circuitry to support the operation of stylus 100 .
  • Storage and processing circuitry may include storage devices such as non-volatile memory (e.g., flash memory or other electrically programmable read-only memory configured as a solid state drive), volatile memory (e.g., static or dynamic random access memory) Wait.
  • Processing circuits in the processor 110 can be used to control the operation of the stylus 100 .
  • the processing circuitry may be based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio chips, application specific integrated circuits, and the like.
  • the sensors may include pressure sensor 120 .
  • the pressure sensor 120 can be disposed on the writing end 11 of the stylus 100 (as shown in FIG. 2B ).
  • the pressure sensor 120 can also be set in the barrel assembly 20 of the stylus 100 , so that when one end of the nib assembly 10 of the stylus 100 receives force, the other end of the nib assembly 10 moves to apply force to the pressure sensor 120 .
  • the processor 110 can adjust the thickness of the line when the nib assembly 10 of the stylus 100 writes according to the pressure detected by the pressure sensor 120 .
  • the sensors may also include inertial sensors 130 .
  • Inertial sensor 130 may include a three-axis accelerometer and a three-axis gyroscope, and/or other components for measuring motion of stylus 100, for example, a three-axis magnetometer may be included in a nine-axis inertial sensor configuration in the sensor.
  • the sensors may also include additional sensors such as temperature sensors, ambient light sensors, light-based proximity sensors, contact sensors, magnetic sensors, pressure sensors, and/or other sensors.
  • a status indicator 140 such as a light emitting diode and a button 150 may be included in the stylus 100 .
  • the status indicator 140 is used to remind the user of the status of the stylus 100 .
  • Buttons 150 may include mechanical buttons and non-mechanical buttons, and buttons 150 may be used to collect button press information from a user.
  • the stylus 100 may include one or more electrodes 160 (for details, refer to the description in FIG. Located in the nib assembly 10, reference may be made to the relevant description above.
  • the stylus 100 may include a sensing circuit 170 .
  • Sensing circuitry 170 can sense capacitive coupling between electrodes 160 and drive lines of a capacitive touch sensor panel that interacts with stylus 100 .
  • the sensing circuit 170 may include an amplifier to receive capacitance readings from a capacitive touch sensor panel, a clock to generate a demodulated signal, a phase shifter to generate a phase-shifted demodulated signal, a frequency shifter to use an in-phase demodulation
  • a mixer to demodulate capacitance readings using quadrature demodulation frequency components, a mixer to demodulate capacitance readings using quadrature demodulation frequency components, etc.
  • the results of the mixer demodulation can be used to determine an amplitude proportional to the capacitance so that the stylus 100 can sense contact with the capacitive touch sensor panel.
  • the stylus 100 may include a microphone, a speaker, an audio generator, a vibrator, a camera, a data port and other devices.
  • a user can control the operation of the stylus 100 and the electronic device 200 that interacts with the stylus 100 by providing commands with these devices, and receive status information and other output.
  • the processor 110 may be used to run software on the stylus 100 that controls the operation of the stylus 100 .
  • software running on the processor 110 may process sensor inputs, button inputs, and inputs from other devices to monitor the movement of the stylus 100 and other user inputs.
  • Software running on the processor 110 can detect user commands and can communicate with the electronic device 200 .
  • the stylus 100 may include a wireless module.
  • the wireless module is the Bluetooth module 180 as an example for illustration.
  • the wireless module can also be a WI-FI hotspot module, a WI-FI point-to-point module, and the like.
  • the Bluetooth module 180 may include a radio frequency transceiver, such as a transceiver.
  • the Bluetooth module 180 may also include one or more antennas.
  • the transceiver may utilize the antenna to transmit and/or receive wireless signals, which may be Bluetooth signals, wireless local area network signals, long-range signals such as cellular phone signals, near field communication signals, or other wireless signals based on the type of wireless module.
  • the stylus 100 may further include a charging module 190 , and the charging module 190 may support charging of the stylus 100 and provide power for the stylus 100 .
  • the electronic device 200 in the embodiment of the present application may be called user equipment (user equipment, UE), terminal (terminal), etc.
  • the electronic device 200 may be a tablet computer (portable android device, PAD), personal digital processing (personal digital assistant, PDA), handheld devices with wireless communication functions, computing devices, vehicle-mounted devices or wearable devices, virtual reality (virtual reality, VR) terminal equipment, augmented reality (augmented reality, AR) terminal equipment, industrial control Wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation safety
  • a mobile terminal or a fixed terminal with a touch screen such as a wireless terminal in a smart city, a wireless terminal in a smart home, or a wireless terminal in a smart home.
  • the form of the terminal device is not specifically limited in this embodiment of the application.
  • FIG. 7 is a schematic diagram of a hardware structure of an electronic device provided by an embodiment of the present application.
  • the electronic device 200 may include a plurality of subsystems that cooperate to perform, coordinate or monitor one or more operations or functions of the electronic device 200 .
  • Electronic device 200 includes processor 210 , input surface 220 , coordination engine 230 , power subsystem 240 , power connector 250 , wireless interface 260 and display 270 .
  • the coordination engine 230 can be used to communicate and/or process data with other subsystems of the electronic device 200; communicate and/or trade data with the stylus 100; measure and/or obtain one or more analog or digital output of a sensor, such as a touch sensor; measure and/or obtain the output of one or more sensor nodes of an array of sensor nodes, such as an array of capacitive sensing nodes; receive and locate tip and ring signals from stylus 100 ; positioning the stylus 100 based on the positions of the tip signal crossing area and the ring signal crossing area, etc.
  • the coordination engine 230 of the electronic device 200 includes or is otherwise communicatively coupled to a sensor layer underlying or integrated with the input surface 220 .
  • Coordination engine 230 utilizes the sensor layer to position stylus 100 on input surface 220 and uses techniques described herein to estimate the angular position of stylus 100 relative to the plane of input surface 220 .
  • the input surface 220 may be called a touch screen 201 .
  • the sensor layer of the coordination engine 230 of the electronic device 200 is a grid of capacitive sensing nodes arranged in columns and rows. More specifically, the array of column traces is arranged perpendicular to the array of row traces.
  • the sensor layer can be separated from other layers of the electronic device, or the sensor layer can be placed directly on another layer, such as but not limited to: display stack layer, force sensor layer, digitizer layer, polarizer layer, battery layer , structural or decorative shell layers, etc.
  • the sensor layer can operate in multiple modes. If operating in mutual capacitance mode, the column and row traces form a single capacitive sensing node at each point of overlap (eg, "vertical" mutual capacitance). If operating in self-capacitance mode, the column and row traces form two (vertically aligned) capacitive sensing nodes at each point of overlap. In another embodiment, adjacent column traces and/or adjacent row traces may each form a single capacitive sensing node (eg, a "horizontal" mutual capacitance) if operating in mutual capacitance mode.
  • the sensor layer may detect the presence of the tip assembly 10 of the stylus 100 and/or the touch of a user's finger by monitoring changes in capacitance (eg, mutual capacitance or self capacitance) present at each capacitive sensing node.
  • coordination engine 230 may be configured to detect tip and ring signals received from stylus 100 through the sensor layer via capacitive coupling.
  • the tip signal and/or the ring signal may include specific information and/or data that may be configured to enable the electronic device 200 to identify the stylus 100 .
  • Such information is generally referred to herein as "stylus identity" information.
  • This information and/or data may be received by the sensor layer and interpreted, decoded and/or demodulated by the coordination engine 230 .
  • the processor 210 may use the stylus identity information to receive input from more than one stylus at the same time.
  • coordination engine 230 may be configured to transmit the position and/or angular position of each of the number of stylus detected by coordination engine 230 to processor 210 .
  • the coordination engine 230 may also transmit to the processor 210 information related to the relative positions and/or relative angular positions of the plurality of stylus detected by the coordination engine 230 .
  • the coordination engine 230 may notify the processor 210 that the detected first stylus is located at a distance from the detected second stylus.
  • the end signal and/or the ring signal may also include specific information and/or data for enabling the electronic device 200 to identify a specific user. Such information is generally referred to herein as "user-identifying" information.
  • Coordination engine 230 may forward user identity information (if detected and/or recoverable) to processor 210 . If the user identity information cannot be recovered from the tip signal and/or the ring signal, the coordination engine 230 may optionally indicate to the processor 210 that the user identity information is not available. Processor 210 can utilize user identity information (or the absence of such information) in any suitable manner, including but not limited to: accepting or denying input from a specific user, allowing or denying access to specific functions of the electronic device, and the like. Processor 210 may use user identity information to receive input from more than one user at a time.
  • the tip signal and/or ring signal may include specific information and/or data that may be configured to cause the electronic device 200 to recognize a user's or stylus 100's settings or preferences. Such information is generally referred to herein as "stylus settings" information.
  • Coordination engine 230 may forward stylus setting information (if detected and/or recoverable) to processor 210 . If the stylus setting information cannot be recovered from the tip signal and/or the ring signal, the coordination engine 230 may optionally indicate to the processor 210 that the stylus setting information is not available.
  • the electronic device 200 can use the stylus to set the information (or the absence of the information) in any suitable way, including but not limited to: applying the setting to the electronic device, applying the setting to the program running on the electronic device, changing the The line thickness, color, and pattern presented by the graphics program of the electronic device, changing the settings of the video game operated on the electronic device, etc.
  • the processor 210 may be configured to perform, coordinate and/or manage the functions of the electronic device 200 .
  • Such functions may include, but are not limited to: communicating and/or transacting data with other subsystems of the electronic device 200, communicating and/or transacting data with the stylus 100, communicating data and/or transacting data via a wireless interface, communicating via a wired
  • the interface communicates and/or trades data, facilitates power exchange via wireless (eg, inductive, resonant, etc.) or wired interfaces, receives position and angular position of one or more stylus, and the like.
  • Processor 210 may be implemented as any electronic device capable of processing, receiving or sending data or instructions.
  • a processor may be a microprocessor, central processing unit, application specific integrated circuit, field programmable gate array, digital signal processor, analog circuit, digital circuit, or a combination of these devices.
  • Processors can be single-threaded or multi-threaded.
  • Processors can be single-core or multi-core processors.
  • processor 210 may be configured to access memory storing instructions.
  • the instructions may be configured to cause the processor to perform, coordinate or monitor one or more operations or functions of the electronic device 200 .
  • the instructions stored in memory may be configured to control or coordinate the operation of other components of electronic device 200, such as, but not limited to: another processor, analog or digital circuitry, volatile or non-volatile memory modules, displays, speakers, microphones, rotary input devices, buttons or other physical input devices, biometric authentication sensors and/or systems, force or touch input/output components, communication modules (such as wireless interfaces and/or power connectors), and/or Haptic or tactile feedback devices.
  • the memory can also store electronic data that can be used by the stylus or the processor.
  • memory may store electronic data or content (such as media files, documents, and applications), device settings and preferences, timing signals and control signals, or data, data structures, or databases for various modules, and detect tip signals and/or Or ring signal-related files or configurations, etc.
  • the memory can be configured as any type of memory.
  • memory may be implemented as random access memory, read only memory, flash memory, removable memory, other types of storage elements, or a combination of such devices.
  • the electronic device 200 also includes a power subsystem 240 .
  • Power subsystem 240 may include a battery or other power source.
  • the power subsystem 240 may be configured to provide power to the electronic device 200 .
  • the power subsystem 240 may also be coupled to a power connector 250 .
  • Power connector 250 may be any suitable connector or port that may be configured to receive power from an external power source and/or to provide power to an external load.
  • power connector 250 may be used to recharge a battery within power subsystem 240 .
  • power connector 250 may be used to transfer power stored (or available) within power subsystem 240 to stylus 100 .
  • the electronic device 200 also includes a wireless interface 260 to facilitate electronic communication between the electronic device 200 and the stylus 100 .
  • the electronic device 200 may be configured to communicate with the stylus 100 via a Bluetooth low energy communication interface or a near field communication interface.
  • the communication interface facilitates electronic communication between the electronic device 200 and an external communication network, device or platform.
  • Wireless interface 260 may be implemented as one or more of a wireless interface, a Bluetooth interface, a near field communication interface, a magnetic interface, a general purpose serial Bus interface, inductive interface, resonant interface, capacitive coupling interface, Wi-Fi interface, TCP/IP interface, network communication interface, optical interface, acoustic interface or any traditional communication interface.
  • the electronic device 200 also includes a display 270 .
  • Display 270 may be located behind input surface 220, or may be integrated therewith.
  • Display 270 may be communicatively coupled to processor 210 .
  • Processor 210 may present information to a user using display 270 .
  • processor 210 uses display 270 to present an interface with which a user can interact.
  • the user manipulates the stylus 100 to interact with the interface.
  • FIG. 8 is a schematic diagram of a hardware structure of a wireless keyboard provided by an embodiment of the present application.
  • the wireless keyboard 300 may include a processor 310 , a memory 320 , a charging interface 330 , a charging management module 340 , a wireless charging coil 350 , a battery 360 , a wireless communication module 370 , a touch panel 380 , and a keyboard 390 .
  • the above-mentioned processor 310, memory 320, charging interface 330, charging management module 340, battery 360, wireless communication module 370, touch panel 380, keyboard 390, etc. can be arranged on the keyboard body of the wireless keyboard 300 (that is, as shown in FIG. 1 shown on the second portion 302).
  • the above-mentioned wireless charging coil 350 can be arranged in the connection part 304 (as shown in FIG. 4 ) for movably connecting the keyboard body and the bracket.
  • connection part 304 as shown in FIG. 4
  • wireless keyboard 300 may include more or fewer components than shown, or combine certain components, or separate certain components, or arrange different components.
  • the illustrated components can be realized in hardware, software or a combination of software and hardware.
  • the memory 320 can be used to store program codes, such as program codes for wirelessly charging the stylus 100 .
  • a Bluetooth address for uniquely identifying the wireless keyboard 300 may also be stored in the memory 320 .
  • the memory 320 may also store connection data of electronic devices that have been successfully paired with the wireless keyboard 300 before.
  • the connection data may be the Bluetooth address of the electronic device successfully paired with the wireless keyboard 300 .
  • the wireless keyboard 300 can be automatically paired with the electronic device without configuring the connection therebetween, such as performing legality verification.
  • the above bluetooth address may be a media access control (media access control, MAC) address.
  • the processor 310 can be used to execute the above application program codes, and call related modules to realize the functions of the wireless keyboard 300 in the embodiment of the present application.
  • the processor 310 may include one or more processing units, and different processing units may be independent devices, or may be integrated in one or more processors 310 .
  • the processor 310 may be an integrated control chip, or may be composed of a circuit including various active and/or passive components, and the circuit is configured to execute the functions belonging to the processor 310 described in the embodiments of this application.
  • the processor of the wireless keyboard 300 may be a microprocessor.
  • the wireless communication module 370 can be used to support the connection between the wireless keyboard 300 and other electronic devices including Bluetooth (bluetooth, BT), global navigation satellite system (global navigation satellite system, GNSS), wireless local area network (wireless local area networks, WLAN) (such as Wireless fidelity (wireless fidelity, Wi-Fi) network), frequency modulation (frequency modulation, FM), near field communication technology (near field communication, NFC), infrared technology (infrared, IR) and other wireless communication data exchange.
  • Bluetooth blue, BT
  • global navigation satellite system global navigation satellite system
  • GNSS global navigation satellite system
  • wireless local area network wireless local area networks, WLAN
  • frequency modulation frequency modulation
  • FM near field communication technology
  • NFC near field communication technology
  • infrared technology infrared, IR
  • the wireless communication module 370 may be a Bluetooth chip.
  • the wireless keyboard 300 may be a Bluetooth keyboard.
  • the wireless keyboard 300 can pair and establish a wireless connection with the Bluetooth chip of other electronic devices through the Bluetooth chip, so as to realize wireless communication between the wireless keyboard 300 and other electronic devices through the wireless connection.
  • the wireless communication module 370 may further include an antenna.
  • the wireless communication module 370 receives electromagnetic waves via the antenna, frequency-modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 310 .
  • the wireless communication module 370 can also receive the signal to be transmitted from the processor 310, frequency-modulate it, amplify it, and convert it into electromagnetic wave to radiate through the antenna.
  • wireless keyboard 300 may support wired charging.
  • the charging management module 340 may receive a charging input from a wired charger through the charging interface 330 .
  • the wireless keyboard 300 may support forward wireless charging.
  • the charging management module 340 can receive wireless charging input through the wireless charging coil 350 of the wireless keyboard 300 .
  • the charging management module 340 is connected to the wireless charging coil 350 through a matching circuit.
  • the wireless charging coil 350 can be coupled with the wireless charging coil of the above-mentioned wireless charger, and induces the alternating electromagnetic field emitted by the wireless charging coil 350 of the wireless charger to generate an alternating electric signal.
  • the alternating electric signal generated by the wireless charging coil 350 is transmitted to the charging management module 340 through the matching circuit, so as to wirelessly charge the battery 360 .
  • the charging management module 340 can also provide power for the wireless keyboard 300 while charging the battery 360 .
  • the charging management module 340 receives the input of the battery 360 to provide power for the processor 310 , the memory 320 , the external memory and the wireless communication module 370 .
  • the charging management module 340 can also be used to monitor parameters such as the battery capacity of the battery 360, the number of battery cycles, and the state of health of the battery (leakage, impedance).
  • the charging management module 340 may also be disposed in the processor 310 .
  • the wireless keyboard 300 can support reverse wireless charging.
  • the charging management module 340 may also receive an input from the charging interface 330 or the battery 360, and convert the DC signal input from the charging interface 330 or the battery 360 into an AC signal.
  • the AC signal is transmitted to the wireless charging coil 350 through the matching circuit.
  • the wireless charging coil 350 can generate an alternating electromagnetic field upon receiving the alternating current signal.
  • the wireless charging coil of other mobile terminals should induce an alternating electromagnetic field, which can be used for wireless charging. That is, the wireless keyboard 300 can also wirelessly charge other mobile terminals.
  • the wireless charging coil 350 can be set in the storage part 303 of the wireless keyboard 300, and the wireless charging coil is set in the pen holder assembly 20 of the stylus 100. When the stylus 100 is placed in the storage part 303 , the wireless keyboard 300 can charge the stylus 100 through the wireless charging coil 350 .
  • FIG. 8 shows a schematic diagram of the hardware structure of the wireless keyboard 300 by taking the matching circuit integrated in the charging management module 340 as an example.
  • the charging interface 330 can be used to provide a wired connection for charging or communication between the wireless keyboard 300 and other electronic devices (such as a wired charger of the wireless keyboard 300 ).
  • a touch sensor is integrated in the above-mentioned touch panel 380 .
  • the notebook computer can receive user's control commands on the notebook computer through the touch panel 380 and the keyboard 390 .
  • the structure shown in the embodiment of the present application does not constitute a specific limitation on the wireless keyboard 300 . It may have more or fewer components than shown in FIG. 8, may combine two or more components, or may have a different configuration of components.
  • the casing of the wireless keyboard 300 may also be provided with a storage cavity for storing the stylus 100 .
  • the wireless charging coil 350 is disposed in the storage cavity, and is used for charging the stylus 100 wirelessly after the stylus 100 is stored in the storage cavity.
  • the outer surface of the wireless keyboard 300 may also include components such as buttons, indicator lights (which can indicate battery status, incoming/outgoing calls, pairing mode, etc.), display screens (which can prompt users for relevant information), and the like.
  • the button may be a physical button or a touch button (used in conjunction with a touch sensor), etc., and is used to trigger operations such as powering on, powering off, starting charging, and stopping charging.
  • the pressure signal of the stylus 100 is transmitted and detected through the pressure-sensitive assembly 60, the pressure-sensitive assembly 60 is connected to the connection end 12 of the nib assembly 10 through the spindle assembly 50, and part of the pressure-sensitive assembly 60 is fixedly connected to the In the pen holder assembly 20 , part of the pressure sensing assembly 60 is fixedly connected with the spindle assembly 50 .
  • the movement of the nib assembly 10 drives the spindle assembly 50 to move, and the spindle assembly 50 drives the pressure-sensitive assembly 60 to move so that the pressure-sensitive assembly 60 is deformed.
  • the pressure of the writing end 11 of the nib assembly 10 controls the line thickness of the writing end 11 .
  • the stylus 100 provided in this embodiment transmits the pressure-sensitive signal to the pressure sensor assembly through the spindle connected to the pen tip assembly, and detects the pressure-sensitive signal through the pressure sensor assembly, avoiding the need to install a pressure-sensitive assembly in the stylus 100 60 leads to the problem of many parts and complicated assembly, simplifies the structure of the stylus 100, reduces the cost of the stylus 100; and improves the detection sensitivity of the pressure-sensitive signal, and improves the accuracy of positioning the position of the stylus assembly 10 .
  • the stylus 100 of the embodiment of the present application will be described in detail below.
  • Fig. 9 is a partial structural diagram of the stylus provided by the embodiment of the present application;
  • Fig. 10 is an exploded view of Fig. 9;
  • Fig. 11 is a front view of Fig. 9;
  • Fig. 12 is a sectional view along A-A in Fig. 11;
  • Fig. 13 is a diagram Figure 9 is the front view after removing the nib assembly;
  • Figure 14 is a cross-sectional view along B-B in Figure 13 .
  • the stylus 100 provided by this embodiment includes a pen holder assembly 20 (not shown in the figure) and a pen tip assembly 10, the pen tip assembly 10 is located at one end of the pen holder assembly 20, and between the pen tip assembly 10 and the pen holder assembly 20 There is a gap 10a at the connecting part between the nib assembly 10 and the pen holder assembly 20, and the nib assembly 10 can move relative to the pen holder assembly 20 in the gap 10a.
  • the penholder assembly 20 is omitted in FIG. 10 to 14 also omits the pen holder assembly 20, and only shows the internal structure and parts of the pen holder assembly 20, which will not be repeated here.
  • the nib assembly 10 touches the touch screen 201 of the electronic device 200 and exerts a certain amount of pressure on the touch screen 201. pressure.
  • the nib assembly 10 moves toward the pen holder assembly 20, and the nib assembly 10 transmits the force it receives to the pen holder assembly 20, and the pen nib assembly 10 is detected by the pen holder assembly 20 to detect the pressure received by the nib assembly 10, and according to the size of the pressure, the nib assembly 10 is adjusted to write of line thickness.
  • the stylus 100 is provided with a first electrode 44 , a signal board 71 and a control board (not shown in the figure).
  • the first electrode 44 is fixed on the writing end 11 of the pen tip assembly 10
  • the signal plate 71 is arranged along the axial direction of the stylus 100, and part of the signal plate 71 is located in the pen tip assembly 10,
  • One end of the signal board 71 protruding into the nib assembly 10 is connected to the first electrode 44
  • the signal board 71 is electrically connected to the control board.
  • the first electrode 44 may be a transmitting electrode, for example, the first electrode 44 is used to transmit a first signal to the electronic device 200, and the electronic device 200 determines that the nib assembly 10 of the stylus 100 is The position on the touch screen 201 .
  • the first electrode 44 is controlled by the control board to transmit the first signal to the electronic device 200, for example, a controller is integrated on the control board, and the controller transmits a control signal to the signal board 71, and the first electrode 44 transmits a control signal to the electronic device 200 according to the control signal. 200 transmits a first signal.
  • the first electrode 44 can be directly formed on the writing end 11 of the nib assembly 10 through an injection molding process, for example, the first electrode 44 is formed through a laser direct structuring (LDS) process.
  • LDS laser direct structuring
  • the signal board 71 extends into the nib assembly 10 and is connected to the first electrode 44.
  • the overall structure of the first electrode 44 is concentrated on the writing end 11 of the nib assembly 10. In this way, the distance between the first electrode 44 and the stylus 100 is relatively small. Small, the signal transmission distance between the first electrode 44 and the electronic device 200 is short, which can improve the detection accuracy of the position of the tip assembly 10 of the stylus 100 by the electronic device 200 .
  • the signal board 71 is usually designed as a narrow strip-shaped circuit board, and the strength of the narrow strip-shaped signal board 71 is usually low.
  • the pen tip assembly 10 repeatedly drives the signal board 71 to move, which may affect the stability of the signal board 71 and further affect the performance of the signal board 71 .
  • a reinforcing member 713 may be connected to the signal board 71 , and the reinforcing member 713 may cover part of the two sides of the signal board 71 .
  • the strength of the signal board 71 is increased by connecting the reinforcement members 713 on both sides of the signal board 71 to prevent the signal board 71 from warping or bending.
  • the reinforcement 713 may include at least two reinforcement boards, and the two reinforcement boards are attached to the two sides of the signal board 71 respectively; Snap into the installation groove 2114 of the reinforcement block.
  • the reinforcing member 713 may have high strength and rigidity, for example, the material of the reinforcing member 713 is stainless steel.
  • the flexible electrical connection assembly 72 may include a flexible circuit board 721 and an electrical connector 722. One end of the flexible circuit board 721 is connected to the signal board 71. , the electrical connector 722 is connected to one end of the flexible circuit board 721 facing the control board, and is connected to the control board through the electrical connector 722 .
  • the electrical connector 722 can be welded together with the flexible circuit board 721 through surface mount technology (Surface Mount Technology, SMT) to form the flexible electrical connection assembly 72.
  • SMT Surface Mount Technology
  • the flexible circuit board 721 has a margin for expansion and contraction by providing the bending portion.
  • the pen tip assembly 10 moves relative to the pen holder assembly 20, for example, when the pen tip assembly 10 moves away from the pen holder assembly 20, the pen tip assembly 10 drives the first electrode 44 and the signal board 71 to move away from the pen holder assembly 20, and the signal board 71
  • the distance between the control board fixed in the pen holder assembly 20 increases, the flexible circuit board 721 connected between the signal board 71 and the control board is elongated, and the bending part on the flexible circuit board 721 is on the flexible circuit board 721 When stretched, it is unfolded, preventing the flexible circuit board 721 from being pulled, avoiding the tearing of the flexible circuit board 721 during long-term use, and ensuring the electrical performance between the signal board 71 and the control board.
  • the stylus 100 is further provided with a pressure sensor assembly 90 and a spindle 52 .
  • the pressure sensor assembly 90 is fixed in the pen holder assembly 20, for example, the pressure sensor assembly 90 is arranged close to the control board, and the pressure sensor assembly 90 is electrically connected to the control board;
  • One end of the main shaft 52 is connected with the nib assembly 10 , and the other end of the main shaft 52 is in contact with the pressure sensor assembly 90 .
  • the nib assembly 10 moves toward the pen holder assembly 20
  • the nib assembly 10 drives the spindle 52 to move toward the pressure sensor assembly 90
  • the spindle 52 generates pressure on the pressure sensor assembly 90
  • the pressure sensor assembly 90 detects the pressure generated by the spindle 52 and sends the
  • the pressure signal is transmitted to the control board, and the control board determines the pressure of the nib assembly 10 according to the pressure signal, and controls the thickness of the line written by the nib assembly 10 according to the pressure of the nib assembly 10 .
  • the pressure-sensitive component 60 is arranged in the pen barrel component 20, the pressure-sensitive signal is transmitted through the deformation of the pressure-sensitive component 60 itself, and the pressure of the pen tip component 10 is detected by sensing the deformation of the pressure-sensitive component 60 through the strain gauge.
  • the pressure sensor assembly 90 is arranged in the pen holder assembly 20, and the pressure of the nib assembly 10 is transmitted to the pressure sensor assembly 90 through the spindle 52 to detect the pressure of the nib assembly 10, which simplifies the transmission of the pressure of the nib assembly 10
  • the detection accuracy of the pressure sensor assembly 90 is high, which can improve the detection accuracy of the pressure of the nib assembly 10, thereby improving the accuracy of the writing thickness of the nib assembly 10.
  • the pressure of the nib assembly 10 is transmitted to the pressure sensor assembly 90 through the spindle 52, and there is no need to install a pressure-sensitive assembly 60 in the stylus 100 that transmits pressure and generates deformation.
  • the production and assembly process of the control pen 100 reduces the cost of the touch pen 100 .
  • the stylus 100 is further provided with a second electrode 45 , and the second electrode 45 is electrically connected to the control board.
  • the second electrode 45 can be used to detect the inclination angle of the stylus 100 relative to the touch screen 201 .
  • the inclination angle of the stylus 100 is determined according to the relative positional relationship between the second electrode 45 and the first electrode 44 .
  • the second electrode 45 may be a transmitting electrode, for example, the second electrode 45 is used to transmit a second signal to the electronic device 200, and the electronic device 200 determines the touch signal according to the second signal transmitted by the second electrode 45.
  • the second electrode 45 is the emitter electrode, the second electrode 45 is the above-mentioned second emitter electrode 42 .
  • the second electrode 45 can transmit the second signal to the electronic device 200, and the second electrode 45 can also receive the signal transmitted from the electronic device 200 to the stylus 100, and the second electrode 45 can transmit the signal to the stylus 100.
  • the received signal is transmitted to the control board, and the control board controls the stylus 100 to execute the command sent by the electronic device 200 according to the received control signal.
  • the second electrode 45 can include a signal transmitting module and a signal receiving module.
  • the signal transmitting module is used for transmitting the second signal to the electronic device 200, and the electronic device 200 determines the inclination angle of the stylus 100 according to the second signal transmitted by the signal transmitting module of the second electrode 45;
  • the signal receiving module is used for receiving the electronic The signal sent by the device 200 to the stylus 100 , the control board of the stylus 100 receives the signal through the signal receiving module of the second electrode 45 , controls the stylus 100 to execute the command sent by the electronic device 200 .
  • the stylus 100 is separately provided with receiving electrodes, the receiving electrodes are electrically connected to the control board, and the signals transmitted from the electronic device 200 to the stylus 100 are received through the receiving electrodes.
  • the second electrode 45 can not only transmit the second signal to the electronic device 200 , but also receive the signal transmitted from the electronic device 200 to the stylus 100 as an example for illustration, and details will not be repeated here.
  • the second electrode 45 is sleeved on the signal board 71, and the second electrode 45 is electrically connected to the signal board 71, and the control board transmits the control signal to the signal board 71, and the second electrode 45 is electrically connected to the signal board 71.
  • 45 transmits a second signal to the electronic device 200 according to the control signal, and the electronic device 200 determines the tilt angle of the stylus 100 according to the received second signal.
  • the electronic device 200 can accurately measure the inclination angle of the stylus 100 .
  • the cooperation between the first electrode 44 and the second electrode 45 enables the electronic device 200 to accurately measure the position of the stylus 100 on the touch screen 201 and the inclination angle of the stylus 100 relative to the touch screen 201 .
  • the pressure sensor assembly 90 may include a pressure sensor 91 and an electrical connector 92, the pressure sensor 91 is used to detect the pressure of the nib assembly 10, and the electrical connector 92 is used to connect the pressure sensor 91 to the
  • the control board is electrically connected to transmit the pressure signal detected by the pressure sensor 91 to the control board.
  • the control board determines the pressure of the nib assembly 10 according to the pressure signal, and transmits a corresponding control signal to the signal board 71 according to the pressure of the nib assembly 10 to control the nib. Thickness of the line written by component 10.
  • one side surface of the pressure sensor 91 abuts against the end of the spindle 52 , the electrical connector 92 is connected to the other side surface of the pressure sensor 91 , and the electrical connector 92 is electrically connected to the control board.
  • the spindle 52 moves toward and squeezes the pressure sensor 91 , and the pressure sensor 91 detects the pressure of the spindle 52 on it, and transmits the pressure signal to the control board through the electrical connector 92 .
  • the electrical connector 92 is, for example, a printed circuit board (Printed Circuit Board, PCB), the pressure sensor 91 is connected on the PCB, and the outer edge of the PCB can have a pin 921, and the pin 921 of the PCB is connected to the control board.
  • PCB printed Circuit Board
  • both the axis of the main shaft 52 and the central axis of the pressure sensor 91 may coincide with the central axis of the pen holder assembly 20 .
  • the axis of the main shaft 52 coincides with the central axis of the pen holder assembly 20, and the pressure of the pen tip assembly 10 is transmitted to the main shaft 52 in a straight line.
  • the pressure sensor 91 and the pen holder assembly 20 The central axes of the pen tip assembly 10 are coincident with each other, and the spindle 52 transmits the pressure of the nib assembly 10 to the pressure sensor 91 in a straight line.
  • the pressure of the pen tip assembly 10 is transmitted to the pressure sensor 91 along the central axis of the stylus 100 in a straight line, which can improve the linearity and isotropy of the force. If the pressure of the assembly 10 is constant, the pressure detected by the pressure sensor 91 will not change. In this way, the control board controls the thickness of the line written by the nib assembly 10 to remain unchanged according to the pressure detected by the pressure sensor 91. In this way, the accuracy of the pressure sensor 91 detecting the pressure of the nib assembly 10 can be improved, and the writing accuracy of the stylus 100 can be improved.
  • the pressure sensor assembly 90 may further include a buffer 93 , and the buffer 93 is attached to the surface of the electrical connector 92 facing away from the pressure sensor 91 .
  • the buffer member 93 is used to buffer the force received by the pressure sensor 91.
  • the effect of the pressure sensor 91 on the buffer member 93 The force can cause the buffer member 93 to compress and deform to a certain extent, and the pressure sensor 91 can move slightly away from the main shaft 52 to buffer the pressure acting on the pressure sensor 91 and avoid damage to the performance of the pressure sensor 91 due to excessive pressure.
  • the buffer member 93 may be an elastic member 523 with a certain strength such as a rubber member or a silicone member.
  • the pressure sensor 91 When assembling the pressure sensor assembly 90, the pressure sensor 91 can be connected to the electrical connector 92 first, for example, the pressure sensor 91 is welded on the PCB; Glue sticks the PCB on the bumper 93 .
  • the stylus 100 is also provided with a fixing bracket 21 , the fixing bracket 21 is fixed in the pen holder assembly 20 , the fixing bracket 21 is used to fix the pressure sensor assembly 90 , and the pressure sensor assembly 90 is fixed in the pen holder assembly 20 .
  • the fixing bracket 21 includes a main body 211, which has a housing cavity 2111, and an opening of the main body 211 facing the main shaft 52, the opening communicates with the housing cavity 2111, and the pressure sensor assembly 90 is installed into the housing cavity 2111 through the opening.
  • the pressure sensor assembly 90 can be glued and fixed in the accommodation cavity 2111 of the main body 211 of the fixing bracket 21 , for example, the buffer pad of the pressure sensor assembly 90 is pasted on the bottom end surface of the accommodation cavity 2111 by adhesive.
  • the bottom end surface of the accommodation cavity 2111 is the bottom surface opposite to the opening of the accommodation cavity 2111 .
  • a positioning hole 2113 can be provided on the side wall of the main body 211 of the fixing bracket 21.
  • the positioning hole 2113 corresponds to the position of the electrical connector 92 (such as a PCB).
  • the pins of the electrical connector 92 921 protrudes out of the fixed bracket 21 through the positioning hole 2113; and, one end of the outer wall of the main body 211 of the fixed bracket 21 facing the control board can be provided with a mounting groove 2114, and the mounting groove 2114 communicates with the positioning hole 2113, and the electrical connector 92
  • the pin 921 protrudes to the positioning hole 2113 and then protrudes toward the control board along the installation slot 2114 .
  • the control board can be fixed in the pen holder assembly 20 through a fixing bracket 21 .
  • the fixed bracket 21 can also include a support plate 212, the support plate 212 is connected to the side of the main body 211 away from the main shaft 52, at least part of the control plate is located on the support plate 212, and the control plate and the support plate 212 is fixedly connected, for example, one end of the control board is welded, bonded, or connected to the support board 212 by screws, bolts and other connecting pieces.
  • an insulating sleeve 22 may be disposed inside the stylus 100 , the insulating sleeve 22 is sleeved on the signal board 71 , and the second electrode 45 is sleeved on the outer wall of the insulating sleeve 22 .
  • the insulating sleeve 22 can be used to fix the second electrode 45 and realize the electrical connection between the second electrode 45 and the signal board 71, and, through the insulation isolation of the insulating sleeve 22, the second electrode 45 and the signal board 71 can be weakened. interference between them.
  • a first through hole 221 is opened on the insulating sleeve 22, and a first conductive member 711 is sleeved on the signal board 71.
  • the position of the first conductive member 711 is in line with the first through hole.
  • the position of 221 corresponds to that of the second electrode 45 protruding into the first through hole 221 and contacting the first conductive member 711 to realize the electrical connection between the second electrode 45 and the signal board 71 .
  • the stylus 100 may also be provided with a ground electrode 43 , and the ground electrode 43 is used to weaken signal interference between the second electrode 45 and the first electrode 44 .
  • the ground electrode 43 can also be sleeved on the insulating sleeve 22 , and the second electrode 45 and the ground electrode 43 are simultaneously fixed by the insulating sleeve 22 , and the signal board 71 is isolated from the second electrode 45 and the ground electrode 43 .
  • the ground electrode 43 is located on the side of the second electrode 45 close to the first electrode 44, so that the ground electrode 43 is located between the first electrode 44 and the second electrode 45, and the ground electrode 43 weakens the first electrode 44 and the second electrode 45. The effect of signal interference between them is better.
  • the insulating sleeve 22 is also provided with a second through hole 222
  • the signal board 71 is also provided with a second conductive member 712.
  • the position of the second conductive member 712 Corresponding to the position of the ground electrode 43 , a portion of the ground electrode 43 protrudes into the second through hole 222 and contacts the second conductive element 712 , so as to realize the electrical connection between the ground electrode 43 and the signal board 71 .
  • the insulating sleeve 22 sleeved on the signal board 71 can increase the strength of the signal board 71.
  • Referring to FIG. 44 and the signal plate 71 are fixedly connected to the main shaft 52, so that the first electrode 44, the signal plate 71, the insulating sleeve 22 and the main shaft 52 form a whole, and move with the movement of the nib assembly 10.
  • the reinforcing member 713, the first conductive member 711 and the second conductive member 712 can be fixed on the signal board 71 first, for example, the reinforcing member 713, Both the first conductive member 711 and the second conductive member 712 are mounted on the surface of the signal board 71 through the SMT process; then, the reinforcing member 713, the first conductive member 711, the second The second conductive element 712 and the signal board 71 are integrally combined with the insulating sleeve 22 ; afterward, the second electrode 45 and the ground electrode 43 are injection-molded on the outer wall of the insulating sleeve 22 by LDS process.
  • the insulating sleeve 22 can be fixed in the main shaft 52 by dispensing glue on a local area on the outer wall of the insulating sleeve 22 .
  • glue dispensing is a process, also known as sizing, gluing, glue pouring, glue dropping, etc., which is to smear, fill, and drip electronic glue, oil or other liquids on the product, so that the product can stick , potting, insulation, fixing, smooth surface and so on.
  • a fixed sleeve 23 may also be disposed inside the stylus 100 .
  • the fixed sleeve 23 is fixed in the pen holder assembly 20
  • the main shaft 52 extends into the fixed sleeve 23
  • the fixed sleeve 23 guides the movement of the main shaft 52 .
  • the main shaft 52 moves in the pen holder assembly 20
  • the main shaft 52 moves along the inner wall of the fixed sleeve 23, and the fixed sleeve 23 can ensure that the main shaft 52 moves along the axial direction of the pen holder assembly 20, so as to prevent the main shaft 52 from deviating from the stylus 100 during the movement. axis, so as to avoid reducing the detection accuracy of the pressure sensor 91 on the pen tip assembly 10 .
  • the fixed sleeve 23 can also limit the movement range of the main shaft 52 .
  • a first limiting portion 521 may be provided on the outer wall of the main shaft 52 toward the end of the nib assembly 10 , for example, the first limiting portion 521 protrudes from the outer wall of the main shaft 52 and extends A circumferentially extending annular stop of the outer wall.
  • the first limiting portion 521 can abut against one end of the fixing sleeve 23 facing the pen tip assembly 10 , so that the first limiting portion 521 can limit the moving range of the pen tip assembly 10 .
  • the distance between the first limiting portion 521 and the end of the fixing sleeve 23 facing the pen tip assembly 10 may be smaller than the distance between the pen tip assembly 10 and the pen holder assembly 20 In this way, when the nib assembly 10 moves to the end of the first stopper 521 and the fixed sleeve 23, there is still a small gap between the nib assembly 10 and the pen barrel assembly 20, which can prevent the nib assembly 10 from When the pen holder assembly 20 collides, the smooth movement of the pen tip assembly 10 is ensured.
  • the outer wall of the end of the main shaft 52 away from the nib assembly 10 may also be provided with a second limiting portion 522 . Similar to the first limiting portion 521 , the second limiting portion 522 protrudes from the main shaft 52 An annular stop on the outer wall and extending along the circumference of the outer wall of the main shaft 52 . An elastic member 523 is sheathed on the outer wall of the main shaft 52 , and the elastic member 523 is clamped between the end of the fixing sleeve 23 facing away from the nib assembly 10 and the second limiting portion 522 on the main shaft 52 .
  • the elastic member 523 is clamped between the end of the fixing sleeve 23 and the second limiting portion 522 .
  • the elastic member 523 is, for example, a pre-compressed spring. When the pen tip assembly 10 is not stressed, the elastic member 523 is in a compressed state. In this way, when the pen tip assembly 10 is under no force, the compressed elastic force of the elastic member 523 acts on the main shaft 52 to ensure that the main shaft 52 is in close contact with the pressure sensor 91 . When the pen tip assembly 10 is forced to drive the main shaft 52 to move towards the pen holder assembly 20 , the force exerted by the main shaft 52 on the pressure sensor 91 increases. In this way, by setting the pre-pressed elastic member 523 , it can be ensured that the main shaft 52 is always in contact with the pressure sensor 91 , and the pressure detection accuracy of the pen tip assembly 10 by the pressure sensor 91 can be improved.
  • the pressure of the elastic member 523 on the pressure sensor 91 can be used as a reference value.
  • the pressure detected by the pressure sensor 91 minus the reference value is used as the actually detected pressure of the nib assembly 10 .
  • the end of the fixing sleeve 23 facing the fixing bracket 21 can be provided with a limit column 231, and the fixing bracket
  • the side wall of the main body 211 of 21 may be provided with a limiting groove 2112 , and the limiting column 231 on the fixing sleeve 23 is snapped into the limiting groove 2112 on the fixing bracket 21 .
  • the fixing sleeve 23 and the fixing bracket 21 can be prevented from rotating in the penholder assembly 20 .
  • one of the fixing sleeve 23 and the fixing bracket 21 can be fixed in the pen holder assembly 20, for example, the fixing bracket 21 can be fixed on the In the penholder assembly 20 , the fixing sleeve 23 can be fixed in the penholder assembly 20 through the cooperation of its limiting post 231 and the limiting groove 2112 of the fixing bracket 21 , without additionally fixing the fixing sleeve 23 .
  • the fixed sleeve 23 in order to ensure that the fixed sleeve 23 is firmly connected in the penholder assembly 20, on the basis that the fixed bracket 21 is fixed in the penholder assembly 20, and the fixed sleeve 23 is plugged and fixed with the fixed bracket 21 through the limit post 231, the fixed sleeve
  • the outer wall of 23 can also be connected with the inner wall of the pen holder assembly 20 or the fixing part in the pen holder assembly 20 by means of welding or dispensing.
  • the flexible circuit board 721 of the flexible electrical connection assembly 72 is connected to the signal board 71.
  • the flexible circuit board 721 can be arranged along the outer wall of the fixing bracket 21 and the fixing sleeve 23, that is, the part of the flexible circuit board 721 Attached on the outer wall of the fixed bracket 21 and the fixed sleeve 23, and the flexible circuit board 721 extends along the outer wall of the fixed bracket 21 and the fixed sleeve 23, through the fixed bracket 21 and the fixed sleeve 23 to the part of the flexible circuit board 721 to fix.
  • the part of the flexible circuit board 721 located on the outer walls of the fixing bracket 21 and the fixing sleeve 23 may be fixed on the outer walls of the fixing bracket 21 and the fixing sleeve 23 by dispensing glue.
  • the flexible circuit board 721 extends along the fixing bracket 21 and the fixing sleeve 23, and the flexible circuit board 721 extends into the main shaft 52 through the side wall of the fixing sleeve 23 and the side wall of the main shaft 52 and connects with the signal board 71. connect.
  • a first installation hole 524 is opened on the side wall of the main shaft 52
  • a second installation hole 232 is opened on the side wall of the fixed sleeve 23, and the second installation hole 232 is connected with the first installation hole.
  • the flexible circuit board 721 extends into the spindle 52 through the second mounting hole 232 and the first mounting hole 524 to connect with the signal board 71 .
  • the bending portion 7211 on the flexible circuit board 721 is set corresponding to the first installation hole 524 and the second installation hole 232, and the flexible circuit board 721 extending along the outer wall of the fixing bracket 21 and the fixing sleeve 23 is bent
  • the extension direction of the bent portion 7211 is changed.
  • the bent portion 7211 may extend substantially in the radial direction with the pen holder assembly 20, so that the flexible circuit board 721 is formed from the inner wall of the pen holder assembly 20 to the pen holder assembly at the position of the bent portion 7211. 20 extends in the direction of the central axis, so that the end of the flexible circuit board 721 extends to attach to the signal board 71 .
  • the bent portion 7211 of the flexible circuit board 721 may have a certain margin, for example, the length of the bent portion 7211 may be greater than the distance between the outer wall of the fixing sleeve 23 and the surface of the signal board 71 . In this way, when the pen tip assembly 10 is in the unstressed state, the bending portion 7211 of the flexible circuit board 721 is in a relaxed state. shortening, the bent portion 7211 of the flexible circuit board 721 that was originally in a relaxed state is still in a relaxed state.
  • the flexible circuit board 721 can be prevented from being pulled when the nib assembly 10 moves away from the pen barrel assembly 20, and the flexible circuit board 721 can be prevented from being torn or broken during long-term use, thereby ensuring the long-term use performance of the flexible circuit board 721.
  • the second mounting hole 232 of the fixing sleeve 23 may be covered with an end cap 233 . 14, by covering the second mounting hole 232 with an end cap 233, the end cap 233 covers the second mounting hole 232 so that the outer wall of the fixing sleeve 23 has a relatively complete surface, which is convenient for fixing the outer wall of the fixing sleeve 23.
  • Components are arranged in the space between the inner wall of the penholder assembly 20 and the inner wall of the penholder assembly 20, for example, the wiring is arranged on the outer wall of the fixed sleeve 23.
  • the end cover 233 may be flush with the outer wall of the fixing sleeve 23 , so that the fixing sleeve 23 has a smooth surface, which is beneficial for arranging flexible devices on the outer wall of the fixing sleeve 23 .
  • the nib assembly 10 moves, it drives the bending portion 7211 of the flexible circuit board 721 to move in the gap, which can protect the flexible circuit board 721 from being squeezed and worn.
  • the main shaft 52 and the pressure sensor assembly 90 are arranged in the stylus 100, one end of the main shaft 52 is connected to the nib assembly 10, and the pressure sensor assembly 90 is fixed in the penholder assembly 20 and connected to the main shaft 52.
  • the other end of the nib assembly 10 is forced to move to drive the main shaft 52 to move, the main shaft 52 moves toward the pen holder assembly 20 and transmits the pressure of the nib assembly 10 to the pressure sensor assembly 90, and the pressure sensor assembly 90 detects the pressure of the nib assembly 10;
  • the transmission method of the pressure of the pen tip assembly 10 is simplified, the parts set in the touch pen 100 are less, the production and assembly process of the touch pen 100 is simple, the cost of the touch pen 100 is reduced, and the pen tip assembly 10 can be improved.
  • the detection accuracy of the pressure improves the accuracy of the writing thickness of the nib assembly 10.
  • the signal board 71 extends into the pen tip assembly 10 and connects with the first electrode 44 located at the writing end 11 of the pen tip assembly 10, reducing the size of the first electrode 44 and shortening the distance between the first electrode 44 and the touch screen 201 , improving the positioning accuracy of the electronic device 200 to the nib assembly 10 of the stylus 100; and, by setting the second electrode 45 on the signal board 71, the movement of the nib assembly 10 can drive the first electrode 44 and the second electrode 45
  • the synchronous movement keeps the relative position between the second electrode 45 and the first electrode 44 unchanged, which improves the measurement accuracy of the electronic device 200 for the inclination angle of the stylus 100 relative to the touch screen 201 .
  • the two ends of the flexible electrical connection assembly 72 are respectively connected to the signal board 71 and the control board, so as to realize the signal transmission between the signal board 71 and the control board, and, by providing a bending part between the two ends of the flexible electrical connection assembly 72 7211, the bending part 7211 makes the flexible electrical connection assembly 72 have a certain elongation margin, avoiding the flexible electrical connection assembly 72 from being pulled and tearing or being damaged when the pen tip assembly 10 moves away from the pen holder assembly 20, and ensuring the flexible electrical connection assembly long-term performance.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a An indirect connection through an intermediary may be an internal communication between two elements or an interaction relationship between two elements.

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Abstract

本申请提供一种触控笔及电子设备组件，通过在触控笔内设置主轴和压力传感器组件，主轴的一端与笔尖组件连接，压力传感器组件固定在笔杆组件内且与主轴的另一端接触，笔尖组件受力移动带动主轴移动，主轴将笔尖组件的压力传递至压力传感器组件，通过压力传感器组件检测笔尖组件的压力；这样，简化了笔尖组件的压力传递方式，触控笔内设置的零件少，触控笔的生产及组装工艺简单，触控笔的成本低，并且，可提高笔尖组件的压力的检测精度，提升触控笔书写粗细的精度；通过将第二电极套设在信号板上，笔尖组件移动可带动第一电极及第二电极同步移动，第二电极与第一电极之间的相对位置不变，提升了电子设备对触控笔相对触控屏的倾斜角度的测量精度。

Description

触控笔及电子设备组件
本申请要求于2021年05月24日提交中国专利局、申请号为202110566502.0、申请名称为“触控笔及电子设备组件”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
本申请涉及终端技术领域，特别涉及一种触控笔及电子设备组件。
背景技术
随着智能手机、平板电脑(Pad)等电子设备的爆发式增长，越来越多的应用软件需要更高精度的触摸，例如绘画软件等，由此触控笔的使用渐渐广泛。根据工作原理的不同，触控笔主要分为电感式触控笔和电容式触控笔。
触控笔通常包括笔杆和连接在笔杆一端的笔尖，具体的，电容式触控笔内通常设置有电极、压感组件和电路板，电极例如可以设置在笔尖内，压感组件和电路板例如可以设置在笔杆内。电极与压感组件均与电路板电连接，电路板向电极提供信号并控制电极向电子设备发射信号，以确定触控笔的位置；压感组件通常包括主轴、传力件和应变片，主轴与笔尖连接，传力件套在主轴上，应变片贴设在传力件朝向电路板的一端，应变片与电路板电连接，主轴带动传力件变形，应变片检测传力件的形变力并传输至电路板，电路板根据该形变力检测笔尖压力并根据笔尖压力控制笔尖书写的线条粗细。
然而，现有触控笔通过应变片检测传力件形变力的方式传递压感信号，触控笔内布置的器件较多，制造及装配工艺复杂，成本较高。
发明内容
本申请提供了一种触控笔及电子设备组件，触控笔的内部器件较少，制造及装配工艺简单，成本低。
本申请一方面提供一种触控笔，包括笔杆组件和笔尖组件，笔尖组件位于笔杆组件一端且与笔杆组件之间具有间隙；
还包括第一电极、第二电极、信号板、主轴、压力传感器组件、控制板及柔性电连接组件，第一电极的一端位于笔尖组件的书写端，信号板伸入笔尖组件内并与第一电极的另一端连接，第二电极套设在信号板上并与信号板电连接；
压力传感器组件固定在笔杆组件内，主轴的一端与笔尖组件连接，主轴的另一端与压力传感器组件接触，且压力传感器组件与控制板电连接；柔性电连接组件的一端与信号板连接，柔性电连接组件的另一端与控制板电连接；其中，柔性电连接组件的两端之间具有弯折部。
本申请提供的触控笔，通过在触控笔内设置主轴和压力传感器组件，主轴的一端与笔 尖组件连接，压力传感器组件固定在笔杆组件内且与主轴的另一端接触，笔尖组件受力移动带动主轴移动，主轴朝向笔杆组件移动并将笔尖组件的压力传递至压力传感器组件，通过压力传感器组件检测笔尖组件的压力；这样，简化了笔尖组件的压力的传递方式，触控笔内设置的零件较少，触控笔的生产及组装工艺简单，降低了触控笔的成本，并且，可提高笔尖组件的压力的检测精度，提升笔尖组件书写粗细的精度。
通过信号板伸入笔尖组件内与位于笔尖组件书写端的第一电极连接，减小了第一电极的尺寸，缩短了第一电极与触控屏之间的间距，提高了电子设备对触控笔的笔尖组件的定位精度；并且，通过将第二电极套设在信号板上，笔尖组件移动可带动第一电极及第二电极同步移动，第二电极与第一电极之间的相对位置不变，提升了电子设备对触控笔相对触控屏的倾斜角度的测量精度。
通过柔性电连接组件的两端分别与信号板和控制板连接，实现信号板和控制板之间的信号传输，并且，通过在柔性电连接组件的两端之间设置弯折部，弯折部使柔性电连接组件具有一定的伸长余量，避免在笔尖组件背离笔杆组件移动时，柔性电连接组件被拉扯而撕裂或损坏，保障柔性电连接件的长期使用性能。
在一种可能的实施方式中，压力传感器组件包括压力传感器和电连接件，压力传感器的一侧表面与主轴的端部抵接，电连接件连接在压力传感器的另一侧表面，电连接件与控制板电连接。
在一种可能的实施方式中，主轴和压力传感器的中轴线均与笔杆组件的中轴线重合。
通过使压力传感器及主轴的中轴线均与笔杆组件的中轴线重合，笔尖组件的压力沿直线传递至压力传感器，提高了力的线性度及各向同性，可提高压力传感器检测笔尖组件的压力的精确度。
在一种可能的实施方式中，压力传感器组件还包括缓冲件，缓冲件贴合在电连接件背离压力传感器的一侧表面。
通过在压力传感器背离主轴的一侧设置缓冲件，缓冲件可以缓冲作用在压力传感器上的作用力，避免压力传感器由于遭受过大压力而损坏，保障压力传感器的工作性能。
在一种可能的实施方式中，触控笔还包括固定支架，固定支架固定于笔杆组件内，固定支架包括具有容纳腔的主体，容纳腔的开口朝向主轴，压力传感器组件位于容纳腔内。
通过在笔杆组件内固定设置固定支架，压力传感器组件安装在固定支架内，将压力传感器组件固定在笔杆组件内。
在一种可能的实施方式中，固定支架还包括支撑板，支撑板连接在主体背离主轴的一侧，控制板的一端连接在支撑板上。
在一种可能的实施方式中，触控笔还包括绝缘套筒，绝缘套筒套设在信号板上，第二电极套设在绝缘套筒的外壁上，且绝缘套筒的部分伸入主轴内与主轴连接；
其中，绝缘套筒上设置有第一贯通孔，信号板上套设有第一导电件，第二电极的部分伸入第一贯通孔内与第一导电件接触。
通过在信号板上套设绝缘套筒，将第二电极套设在绝缘套筒外壁上，且第二电极通过绝缘套筒上的第一贯通孔与套设在信号板上的第一导电件接触，实现第二电极与信号板的电连接；绝缘套筒可以固定第二电极，通过绝缘套筒的绝缘隔离作用，还可减弱第二电极和信号板之间的干扰。
在一种可能的实施方式中，触控笔还包括接地电极，接地电极套设在绝缘套筒的外壁上，且接地电极位于第二电极靠近第一电极的一侧；
其中，绝缘套筒上设有第二贯通孔，信号板上套设有第二导电件，接地电极的部分伸入第二贯通孔内与第二导电件接触。
通过在绝缘套筒上套设接地电极，接地电极通过绝缘套筒上的第二贯通孔与套设在信号板上的第二导电件接触，实现接地电极与信号板的电连接，且接地电极位于第一电极和第二电极之间，接地电极可减弱第一电极和第二电极之间的干扰作用，提升电子设备对触控笔的位置及倾斜角度的检测精度。
在一种可能的实施方式中，触控笔还包括固定套筒，固定套筒固定在笔杆组件内，主轴伸入固定套筒内，主轴朝向笔尖组件的一端的外壁上设有第一限位部；第一限位部用于在笔尖组件朝向笔杆组件移动时，与固定套筒朝向笔尖组件的一端抵接。
通过在笔杆组件内设置固定套筒，主轴伸入固定套筒，主轴在固定套筒内移动，通过固定套筒的内壁对主轴移动的导向作用，可以避免主轴在移动过程中偏移，保证主轴沿笔杆组件的轴向移动，提高主轴传递力的准确度。
通过在主轴朝向笔尖组件的一端设置第一限位部，笔尖组件未受力时，第一限位部与固定套筒之间的间距可以小于笔尖组件与笔杆组件之间的间隙，这样，当主轴移动至第一限位部与固定套筒的端部抵接时，笔尖组件与笔杆组件之间仍具有间隙，可保证笔尖组件的灵活移动。
在一种可能的实施方式中，主轴的外壁上套设有弹性件，主轴背离笔尖组件的一端的外壁上设有第二限位部，弹性件卡设在固定套筒背离笔尖组件的一端及第二限位部之间。
通过在主轴背离笔尖组件一端的外壁上设置第二限位部，在主轴的外壁上套设弹性件，弹性件卡设在固定套筒端部和第二限位部之间，通过弹性件预先处于压缩状态，保证主轴与压力传感器接触良好，保证压力传感器检测笔尖组件的压力的精度。
在一种可能的实施方式中，固定套筒朝向固定支架的一端设有限位柱，固定支架的主体的侧壁上设有限位槽，限位柱卡入限位槽内。
通过在固定套筒上设置限位柱，在固定支架的侧壁上设置与限位柱配合的限位槽，通过限位柱卡入限位槽内，可防止固定套筒和固定支架两者之间相对旋转，使固定套筒和固定支架在笔杆组件内固定牢靠。
在一种可能的实施方式中，主轴的侧壁上开设有第一安装孔，固定套筒的侧壁上开设有第二安装孔，第二安装孔与第一安装孔贯通，柔性电连接组件的一端通过第二安装孔和第一安装孔伸入主轴内与信号板连接。
在一种可能的实施方式中，柔性电连接组件包括柔性电路板和电连接器，电连接器连接在柔性电路板朝向控制板的一端，弯折部位于柔性电路板上；
其中，柔性电路板沿固定支架及固定套筒的外壁延伸，且弯折部穿过第二安装孔和第一安装孔，使柔性电路板的端部贴合在信号板上。
在一种可能的实施方式中，固定套筒的第二安装孔上盖设有端盖。
在一种可能的实施方式中，触控笔还包括加强件，加强件覆盖信号板的两侧板面的部分区域。
通过在信号板的两侧板面覆盖加强件，加强件可以增大信号板的强度，避免信号板偏 移或弯折，保证信号板的性能。
在一种可能的实施方式中，第一电极为发射电极，第二电极包括信号发射模块和信号接收模块。
通过在第二电极上集成信号发射模块和信号接收模块，第二电极既可向电子设备发送激励信号，又可接收电子设备发送的信号，这样不用在触控笔内再另外设置接收电极，可节省触控笔内的空间，且便于触控笔的组装。
本申请的另一方面提供一种电子设备组件，包括电子设备和如上任一项所述的触控笔。
本申请提供的电子设备组件包括触控笔，通过在触控笔内设置主轴和压力传感器组件，主轴的一端与笔尖组件连接，压力传感器组件固定在笔杆组件内且与主轴的另一端接触，笔尖组件受力移动带动主轴移动，主轴朝向笔杆组件移动并将笔尖组件的压力传递至压力传感器组件，通过压力传感器组件检测笔尖组件的压力；这样，简化了笔尖组件的压力的传递方式，触控笔内设置的零件较少，触控笔的生产及组装工艺简单，降低了触控笔的成本，并且，可提高笔尖组件的压力的检测精度，提升笔尖组件书写粗细的精度。
通过信号板伸入笔尖组件内与位于笔尖组件书写端的第一电极连接，减小了第一电极的尺寸，缩短了第一电极与触控屏之间的间距，提高了电子设备对触控笔的笔尖组件的定位精度；并且，通过将第二电极套设在信号板上，笔尖组件移动可带动第一电极及第二电极同步移动，第二电极与第一电极之间的相对位置不变，提升了电子设备对触控笔相对触控屏的倾斜角度的测量精度。
通过柔性电连接组件的两端分别与信号板和控制板连接，实现信号板和控制板之间的信号传输，并且，通过在柔性电连接组件的两端之间设置弯折部，弯折部使柔性电连接组件具有一定的伸长余量，避免在笔尖组件背离笔杆组件移动时，柔性电连接组件被拉扯而撕裂或损坏，保障柔性电连接件的长期使用性能。
在一种可能的实施方式中，电子设备组件还包括：无线键盘，无线键盘上具有收纳触控笔的收纳部。
附图说明
图1为本申请实施例适用的一种场景示意图；
图2A为本申请实施例提供的触控笔的结构示意图；
图2B为本申请实施例提供的触控笔的部分拆分结构示意图；
图3为本申请实施例提供的触控笔与电子设备交互的示意图；
图4为本申请实施例提供的触控笔与无线键盘的装配示意图；
图5A为本申请实施例提供的触控笔收纳在无线键盘的收纳部中的示意图；
图5B为本申请实施例提供的触控笔收纳在无线键盘的收纳部时的侧面示意图；
图6为本申请实施例提供的一种触控笔的硬件结构示意图；
图7为本申请实施例提供的一种电子设备的硬件结构示意图；
图8为本申请实施例提供的一种无线键盘的硬件结构示意图；
图9为本申请实施例提供的触控笔的局部结构图；
图10为图9的***图；
图11为图9的主视图；
图12为图11中沿A-A的剖视图；
图13为图9中去除笔尖组件后的主视图；
图14为图13中沿B-B的剖视图。
附图标记说明：
100-触控笔；200-电子设备；201-触控屏；300-无线键盘；301-第一部分；301a-第一支架；301b-第二支架；302-第二部分；303-收纳部；304-连接部；
110-处理器；120-压力传感器；130-惯性传感器；140-状态指示器；150-按钮；160-电极；170-感测电路；180-蓝牙模块；190-充电模块；
210-处理器；220-输入表面；230-协调引擎；240-电源子***；250-电源连接器；260-无线接口；270-显示器；
310-处理器；320-存储器；330-充电接口；340-充电管理模块；350-无线充电线圈；360-电池；370-无线通信模块；380-触控板；390-键盘；
10-笔尖组件；10a-间隙；11-书写端；12-连接端；20-笔杆组件；30-后盖；41-第一发射电极；42-第二发射电极；43-接地电极；44-第一电极；45-第二电极；50-主轴组件；51-外螺纹；60-压感组件；70-电路板；80-电池组件；90-压力传感器组件；
21-固定支架；22-绝缘套筒；23-固定套筒；52-主轴；71-信号板；72-柔性电连接组件；91-压力传感器；92-电连接件；93-缓冲件；
211-主体；212-支撑板；221-第一贯通孔；222-第二贯通孔；231-限位柱；232-第二安装孔；233-端盖；521-第一限位部；522-第二限位部；523-弹性件；524-第一安装孔；711-第一导电件；712-第二导电件；713-加强件；721-柔性电路板；722-电连接器；921-引脚；
2111-容纳腔；2112-限位槽；2113-定位孔；2114-安装槽；7211-弯折部。
具体实施方式
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请。
图1为本申请实施例适用的一种场景示意图。参照图1，该场景中包括触控笔(stylus)100、电子设备200和无线键盘300。图1中以电子设备200为平板电脑(tablet)为例进行说明。触控笔100和无线键盘300可以向电子设备200提供输入，电子设备200基于触控笔100或无线键盘300的输入，执行响应于该输入的操作。无线键盘300上可以设置触控区域，触控笔100可以操作无线键盘300的触控区域，向无线键盘300提供输入，无线键盘300可以基于触控笔100的输入执行响应于该输入的操作。在一种实施例中，触控笔100和电子设备200之间、触控笔100和无线键盘300之间，以及电子设备200和无线键盘300之间，可以通过通信网络进行互联，以实现无线信号的交互。该通信网络可以但不限于为：WI-FI热点网络、WI-FI点对点(peer-to-peer，P2P)网络、蓝牙网络、zigbee网络或近场通信(near field communication，NFC)网络等近距离通信网络。
触控笔100可以但不限于为：电感笔和电容笔。电子设备200具有触控屏201，触控笔100为电感笔时，与触控笔100交互的电子设备200的触控屏201上需要集成电磁感应板。电磁感应板上的分布有线圈，电感笔中也集成有线圈。基于电磁感应原理，在电磁感应板所产生的磁场范围内，随着电感笔的移动，电感笔能够积蓄电能。电感笔可以将积蓄的电能 通过自由震荡，经电感笔中的线圈传输至电磁感应板。电磁感应板可以基于来自电感笔的电能，对电磁感应板上的线圈进行扫描，计算出电感笔在触控屏201上的位置。电子设备200中的触控屏201也可以称为触摸屏。
电容笔可以包括：无源电容笔和有源电容笔。无源电容笔可以称为被动式电容笔，有源电容笔可以称为主动式电容笔。
主动式电容笔中(例如笔尖组件内)可以设置一个或多个电极，主动式电容笔可以通过电极发射信号。触控笔100为主动式电容笔时，与触控笔100交互的电子设备200的触控屏201上需要集成电极阵列。在一种实施例中，电极阵列可以为电容式电极阵列。电子设备200通过电极阵列可以接收来自主动式电容笔的信号，进而在接收到该信号时，基于触控屏201上的电容值的变化识别主动式电容笔在触控屏上的位置，以及主动式电容笔的倾角。
图2A为本申请实施例提供的触控笔的结构示意图。参照图2A所示，触控笔100可以包括笔尖组件10、笔杆组件20和后盖30。笔杆组件20的内部为中空结构，笔尖组件10和后盖30分别位于笔杆组件20的两端，后盖30与笔杆组件20之间可以通过插接或者卡合方式，笔尖组件10与笔杆组件20之间的配合关系详见图2B的描述。
图2B为本申请实施例提供的触控笔的部分拆分结构示意图。参照图2B所示，触控笔100还包括主轴组件50，主轴组件50位于笔杆组件20内，且主轴组件50在笔杆组件20内可滑动设置。主轴组件50上具有外螺纹51，笔尖组件10包括书写端11和连接端12，其中，笔尖组件10的连接端12具有与外螺纹51配合的内螺纹(未示出)。
当主轴组件50装配到笔杆组件20内时，笔尖组件10的连接端12伸入笔杆组件20内且与主轴组件50的外螺纹51螺纹连接。在一些其他示例中，笔尖组件10的连接端12与主轴组件50之间还可以通过卡合等可拆卸方式实现连接。通过笔尖组件10的连接端12与主轴组件50之间可拆卸相连，这样实现了对笔尖组件10的更换。
其中，为了对笔尖组件10的书写端11受到的压力进行检测，参照图2A所示，笔尖组件10与笔杆组件20之间具有间隙10a，这样可以确保笔尖组件10的书写端11受到外力时，笔尖组件10可以朝向笔杆组件20移动，笔尖组件10的移动会带动主轴组件50在笔杆组件20内移动。而对外力的检测，参照图2B所示，在主轴组件50上设有压感组件60，压感组件60的部分与笔杆组件20内的固定结构固定相连，压感组件60的部分与主轴组件50固定相连。这样，主轴组件50随着笔尖组件10移动时，由于压感组件60的部分与笔杆组件20内的固定结构固定相连，所以主轴组件50的移动会驱动压感组件60形变，压感组件60的形变传递给电路板70(例如，压感组件60与电路板70之间可以通过导线或者柔性电路板实现电连接)，电路板70根据压感组件60形变检测出笔尖组件10的书写端11的压力，从而根据笔尖组件10书写端11的压力控制书写端11的线条粗细。
需要说明的是，笔尖组件10的压力检测包括但不限于上述方法。例如，还可以通过在笔尖组件10的书写端11内设置压力传感器，由压力传感器检测笔尖组件10的压力。
本实施例中，参照图2B所示，触控笔100还包括多个电极，多个电极例如可以为第一发射电极41、接地电极43和第二发射电极42。第一发射电极41、接地电极43和第二发射电极42均与电路板70电连接。第一发射电极41可以位于笔尖组件10内且靠近书写端11，电路板70可以被配置为可以分别向第一发射电极41和第二发射电极42提供信号的控制板，第一 发射电极41用于发射第一信号，当第一发射电极41靠近电子设备200的触控屏201时，第一发射电极41与电子设备200的触控屏201之间可以形成耦合电容，这样电子设备200可以接收到第一信号。其中，第二发射电极42用于发射第二信号，电子设备200根据接收到的第二信号可以判断触控笔100的倾斜角度。本申请实施例中，第二发射电极42可以位于笔杆组件20的内壁上。在一种示例中，第二发射电极42也可以位于主轴组件50上。
接地电极43可以位于第一发射电极41和第二发射电极42之间，或者，接地电极43可以位于第一发射电极41和第二发射电极42的外周围，接地电极43用于降低第一发射电极41和第二发射电极42相互之间的耦合。
当电子设备200接收来自触控笔100的第一信号时，触控屏201对应位置处的电容值会发生变化。据此，电子设备200可以基于触控屏201上的电容值的变化，确定触控笔100(或触控笔100的笔尖组件)在触控屏201上的位置。另外，电子设备200可以采用倾角检测算法中的双笔尖投影方法获取触控笔100的倾斜角度。其中，第一发射电极41和第二发射电极42在触控笔100中的位置不同，因此当电子设备200接收来自触控笔100的第一信号和第二信号时，触控屏201上两个位置处的电容值会发生变化。电子设备200可以根据第一发射电极41和第二发射电极42之间的距离，以及触控屏201上电容值发生变化的两个位置处之间的距离，获取触控笔100的倾斜角度，更为详细的获取触控笔100的倾斜角度可以参照现有技术中双笔尖组件投影方法的相关描述。
本申请实施例中，参照图2B所示，触控笔100还包括：电池组件80，电池组件80用于向电路板70提供电源。其中，电池组件80可以包括锂离子电池，或者，电池组件80可以包括镍铬电池、碱性电池或镍氢电池等。在一种实施例中，电池组件80包括的电池可以为可充电电池或一次性电池，其中，当电池组件80包括的电池为可充电电池时，触控笔100可以通过无线充电方式对电池组件80中的电池进行充电。
图3为本申请实施例提供的触控笔与电子设备交互的示意图；参照图3所示，当触控笔100为主动式电容笔时，电子设备200和触控笔100无线连接后，电子设备200可以通过触控屏201上集成的电极阵列向触控笔100发送上行信号。触控笔100可以通过接收电极接收该上行信号，且触控笔100通过发射电极(例如第一发射电极41和第二发射电极42)发射下行信号。下行信号包括上述的第一信号和第二信号。当触控笔100的笔尖组件10接触触控屏201时，触控屏201对应位置处的电容值会发生变化，电子设备200可以基于触控屏201上的电容值，确定触控笔100的笔尖组件10在触控屏201上的位置。在一种实施例中，上行信号和下行信号可以为方波信号。
图4为本申请实施例提供的触控笔与无线键盘的装配示意图。参照图4所示，在一种实施例中，无线键盘300可以包括第一部分301和第二部分302。示例性的，如无线键盘300可以包括：键盘主体和键盘套。第一部分301可以为键盘套，第二部分302为键盘主体。第一部分301用于放置电子设备200，第二部分302上可以设置有用于用户操作的按键、触控板等。
其中，无线键盘300使用时，需要将无线键盘300的第一部分301和第二部分302打开，而无线键盘300不使用时，无线键盘300的第一部分301和第二部分302能够合上。在一种实施例中，无线键盘300的第一部分301与第二部分302之间可以转动相连。例如，第一部分301与第二部分302之间可以通过转轴或者铰链相连，或者，在一些示例中，第一部分301 与第二部分302之间通过柔性材料(例如皮质材料或布材料)实现转动相连。或者，在一些示例中，第一部分301与第二部分302可以一体成型，且第一部分301与第二部分302之间的连接处通过减薄处理，使得第一部分301与第二部分302之间的连接处可以弯折。其中，第一部分301和第二部分302之间的连接方式可以包括但不限于上述的几种转动连接方式。
其中，第一部分301可以包括至少两个转动相连的支架。例如，参照图4所示，第一部分301包括第一支架301a和第二支架301b，第一支架301a和第二支架301b之间转动相连，在使用时，可以采用第一支架301a和第二支架301b共同对电子设备200进行支撑(参照图1)。或者，第一支架301a对第二支架301b提供支撑，第二支架301b对电子设备200进行支撑。参照图4所示，第二支架301b与第二部分302之间转动相连。
其中，参照图4所示，为了便于对触控笔100进行收纳，无线键盘300上可以设置有收纳触控笔100的收纳部303。参照图4所示，收纳部303为筒状的腔体，收纳时，触控笔100沿着图4中的箭头方向***收纳腔体中。本实施例中，参照图4所示，第二部分302和第二支架301b之间通过连接部304转动连接，连接部304中设置有收纳部303。其中，连接部304可以为转轴，所以，可以在转轴内开设腔体以形成收纳部303。
当然，在一些示例，收纳部303也可以设在连接部304的表面上，或者，收纳部303还可以靠近连接部304设置。
图5A为本申请实施例提供的触控笔收纳在无线键盘的收纳部中的示意图，图5B为本申请实施例提供的触控笔收纳在无线键盘的收纳部时的侧面示意图。参照图5B所示，收纳部303为圆形腔体，且收纳部303的内径大于触控笔100的外径。
其中，为了避免触控笔100放置于收纳部303中掉落，在一种实施例中，收纳部303的内壁上可以设置有磁性材料，触控笔100中可以设置磁性材料。触控笔100通过磁性材料之间的磁性吸附作用吸附在收纳部303内。当然，在一些示例中，触控笔100与收纳部303之间固定时，包括但不限于采用磁力吸附实现固定，例如，触控笔100与收纳部303之间还可以通过卡合方式实现固定。
其中，为了方便触控笔100从收纳部303中取出，收纳部303内可以设置弹出结构，例如，按压触控笔100的一端，弹出机构可以驱动触控笔100的一端从收纳部303向外弹出。
图6为本申请实施例提供的一种触控笔的硬件结构示意图。参照图6所示，触控笔100可以具有处理器110。处理器110可以包括用于支持触控笔100的操作的存储和处理电路。存储和处理电路可以包括诸如非易失性存储器的存储装置(例如，闪存存储器或构造为固态驱动器的其它电可编程只读存储器)、易失性存储器(例如，静态或动态随机存取存储器)等。处理器110中的处理电路可以用来控制触控笔100的操作。处理电路可以基于一个或多个微处理器、微控制器、数字信号处理器、基带处理器、电源管理单元、音频芯片、专用集成电路等。
触控笔100中可以包括一个或多个传感器。例如，传感器可以包括压力传感器120。压力传感器120可以设置在触控笔100的书写端11(如图2B所示)。当然，压力传感器120还可以设在触控笔100的笔杆组件20内，这样，触控笔100的笔尖组件10一端受力后，笔尖组件10的另一端移动将力作用到压力传感器120。在一种实施例中，处理器110根据压力传感器120检测到的压力大小可以调整触控笔100的笔尖组件10书写时的线条粗细。
传感器也可以包括惯性传感器130。惯性传感器130可以包括三轴加速计和三轴陀螺仪，和/或，用于测量触控笔100的运动的其它部件，例如，三-轴磁力计可以以九-轴惯性传感器的构造被包括在传感器中。传感器也可以包括附加的传感器，诸如温度传感器、环境光传感器、基于光的接近传感器、接触传感器、磁传感器、压力传感器和/或其它传感器。
触控笔100中可以包括如发光二极管的状态指示器140和按钮150。状态指示器140用于向用户提示触控笔100的状态。按钮150可以包括机械按钮和非机械按钮，按钮150可以用于从用户收集按钮按压信息。
本申请实施例中，触控笔100中可以包括一个或多个电极160(具体可以参照图2B中的描述)，其中一个电极160可以位于触控笔100的书写端处，其中一个电极160可以位于笔尖组件10内，可以参照上述的相关描述。
触控笔100中可以包括感测电路170。感测电路170可感测位于电极160和与触控笔100交互的电容触摸传感器面板的驱动线之间的电容耦合。感测电路170可以包括用以接收来自电容触摸传感器面板的电容读数的放大器、用以生成解调信号的时钟、用以生成相移的解调信号的相移器、用以使用同相解调频率分量来解调电容读数的混频器、以及用以使用正交解调频率分量来解调电容读数的混频器等。混频器解调的结果可用于确定与电容成比例的振幅，使得触控笔100可以感测到与电容触摸传感器面板的接触。
可以理解的是，根据实际需求，在触控笔100可以包括麦克风、扬声器、音频发生器、振动器、相机、数据端口以及其它设备。用户可以通过利用这些设备提供命令来控制触控笔100和与触控笔100交互的电子设备200的操作，并且接收状态信息和其它输出。
处理器110可以用于运行触控笔100上的控制触控笔100的操作的软件。触控笔100的操作过程中，运行在处理器110上的软件可以处理传感器输入、按钮输入和来自其它装置的输入以监视触控笔100的移动和其它用户输入。在处理器110上运行的软件可以检测用户命令并且可以与电子设备200通信。
为了支持触控笔100与电子设备200的无线通信，触控笔100可以包括无线模块。图6中以无线模块为蓝牙模块180为例进行说明。无线模块还可以为WI-FI热点模块、WI-FI点对点模块等。蓝牙模块180可以包括射频收发器，例如收发器。蓝牙模块180也可以包括一个或多个天线。收发器可以利用天线发射和/或接收无线信号，无线信号基于无线模块的类型，可以是蓝牙信号、无线局域网信号、诸如蜂窝电话信号的远程信号、近场通信信号或其它无线信号。
触控笔100还可以包括充电模块190，充电模块190可以支持触控笔100的充电，为触控笔100提供电力。
应理解，本申请实施例中的电子设备200可以称为用户设备(user equipment，UE)、终端(terminal)等，例如，电子设备200可以为平板电脑(portable android device，PAD)、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备、车载设备或可穿戴设备，虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等具有触控屏的移动终端或固定终端。本申 请实施例中对终端设备的形态不做具体限定。
图7为本申请实施例提供的一种电子设备的硬件结构示意图。参照图7，电子设备200可以包括多个子***，这些子***协作以执行、协调或监控电子设备200的一个或多个操作或功能。电子设备200包括处理器210、输入表面220、协调引擎230、电源子***240、电源连接器250、无线接口260和显示器270。
示例性的，协调引擎230可以用于与电子设备200的其他子***进行通信和/或处理数据；与触控笔100通信和/或交易数据；测量和/或获得一个或多个模拟或数字传感器(诸如触摸传感器)的输出；测量和/或获得传感器节点阵列(诸如电容感测节点的阵列)的一个或多个传感器节点的输出；接收和定位来自触控笔100的尖端信号和环信号；基于尖端信号交叉区域和环形信号交叉区域的位置来定位触控笔100等。
电子设备200的协调引擎230包括或以其他方式可通信地耦接至位于输入表面220下方或与该输入表面集成一体的传感器层。协调引擎230利用传感器层对输入表面220上的触控笔100进行定位，并使用本文所述的技术来估计触控笔100相对于输入表面220的平面的角位置。在一种实施例中，输入表面220可以称为触控屏201。
例如，电子设备200的协调引擎230的传感器层是布置为列和行的电容感测节点网格。更具体地说，列迹线阵列被设置成垂直于行迹线阵列。传感器层可以与电子设备的其他层分开，或者传感器层可以直接设置在另一个层上，其他层诸如但不限于：显示器叠堆层、力传感器层、数字转换器层、偏光器层、电池层、结构性或装饰性外壳层等。
传感器层能够以多种模式操作。如果以互电容模式操作，则列迹线和行迹线在每个重叠点(例如，“垂直”互电容)处形成单个电容感测节点。如果以自电容模式操作，则列迹线和行迹线在每个重叠点处形成两个(垂直对齐的)电容感测节点。在另一个实施方案中，如果以互电容模式操作，则相邻的列迹线和/或相邻的行迹线可各自形成单个电容感测节点(例如，“水平”互电容)。如上所述，传感器层可以通过监测在每个电容感测节点处呈现的电容(例如，互电容或自电容)变化来检测触控笔100的笔尖组件10的存在和/或用户手指的触摸。在许多情况下，协调引擎230可被配置为经由电容耦合来检测通过传感器层从触控笔100接收的尖端信号及环信号。
其中，尖端信号和/或环信号可以包括可被配置为令电子设备200识别触控笔100的特定信息和/或数据。此类信息在本文通常被称为“触笔身份”信息。该信息和/或数据可以由传感器层接收，并由协调引擎230解译、解码和/或解调。
处理器210可以使用触笔身份信息来同时接收来自一支以上的触笔的输入。具体地，协调引擎230可被配置为将由协调引擎230检测到的若干触笔中的每个触笔的位置和/或角位置传输给处理器210。在其他情况下，协调引擎230还可以向处理器210传输与由协调引擎230检测到的多个触笔的相对位置和/或相对角位置有关的信息。例如，协调引擎230可以通知处理器210所检测的第一触控笔位于距离所检测的第二触控笔的位置。
在其他情况下，端信号和/或环信号还可以包括用于令电子设备200识别特定用户的特定信息和/或数据。此类信息在本文通常被称为“用户身份”信息。
协调引擎230可以将用户身份信息(如果检测到和/或可复原的话)转发到处理器210。如果用户身份信息不能从尖端信号和/或环信号中复原，则协调引擎230可以可选地向处理器210指示用户身份信息不可用。处理器210能够以任何合适的方式利用用户身份信息(或 不存在该信息的情况)，包括但不限于：接受或拒绝来自特定用户的输入，允许或拒绝访问电子设备的特定功能等。处理器210可以使用用户身份信息来同时接收来自一个以上的用户的输入。
在另外的其他情况下，尖端信号和/或环信号可以包括可被配置为令电子设备200识别用户或触控笔100的设置或偏好的特定信息和/或数据。此类信息在本文通常被称为“触笔设置”信息。
协调引擎230可以将触笔设置信息(如果检测到和/或可复原的话)转发到处理器210。如果触笔设置信息不能从尖端信号和/或环信号中复原，则协调引擎230可以可选地向处理器210指示触笔设置信息不可用。电子设备200能够以任何合适的方式利用触笔设置信息(或不存在该信息的情况)，包括但不限于：将设置应用于电子设备，将设置应用于在电子设备上运行的程序，改变由电子设备的图形程序所呈现的线条粗细、颜色、图案，改变在电子设备上操作的视频游戏的设置等。
一般而言，处理器210可被配置为执行、协调和/或管理电子设备200的功能。此类功能可以包括但不限于：与电子设备200的其他子***通信和/或交易数据，与触控笔100通信和/或交易数据，通过无线接口进行数据通信和/或交易数据，通过有线接口进行数据通信和/或交易数据，促进通过无线(例如，电感式、谐振式等)或有线接口进行电力交换，接收一个或多个触笔的位置和角位置等。
处理器210可被实现为能够处理、接收或发送数据或指令的任何电子设备。例如，处理器可以是微处理器、中央处理单元、专用集成电路、现场可编程门阵列、数字信号处理器、模拟电路、数字电路或这些设备的组合。处理器可以是单线程或多线程处理器。处理器可以是单核或多核处理器。
在使用期间，处理器210可被配置为访问存储有指令的存储器。该指令可被配置为使处理器执行、协调或监视电子设备200的一个或多个操作或功能。
存储在存储器中的指令可被配置为控制或协调电子设备200的其他部件的操作，该部件诸如但不限于：另一处理器、模拟或数字电路、易失性或非易失性存储器模块、显示器、扬声器、麦克风、旋转输入设备、按钮或其他物理输入设备、生物认证传感器和/或***、力或触摸输入/输出部件、通信模块(诸如无线接口和/或电源连接器)，和/或触觉或触觉反馈设备。
存储器还可存储可由触笔或处理器使用的电子数据。例如，存储器可以存储电子数据或内容(诸如媒体文件、文档和应用程序)、设备设置和偏好、定时信号和控制信号或者用于各种模块的数据、数据结构或者数据库，与检测尖端信号和/或环信号相关的文件或者配置等等。存储器可被配置为任何类型的存储器。例如，存储器可被实现作为随机存取存储器、只读存储器、闪存存储器、可移动存储器、其他类型的存储元件或此类设备的组合。
电子设备200还包括电源子***240。电源子***240可包括电池或其它电源。电源子***240可被配置为向电子设备200提供电力。电源子***240还可耦接到电源连接器250。电源连接器250可以是任何合适的连接器或端口，其可被配置为从外部电源接收电力并且/或者被配置为向外部负载提供电力。例如，在一些实施方案中，电源连接器250可以用于对电源子***240内的电池进行再充电。在另一个实施方案中，电源连接器250可以用于将存储在(或可用于)电源子***240内的电力传输到触控笔100。
电子设备200还包括无线接口260，以促进电子设备200与触控笔100之间的电子通信。在一个实施方案中，电子设备200可被配置为经由低能量蓝牙通信接口或近场通信接口与触控笔100通信。在其他示例中，通信接口有利于电子设备200与外部通信网络、设备或平台之间的电子通信。
无线接口260(无论是电子设备200与触控笔100之间的通信接口还是另外的通信接口)可被实现为一个或多个无线接口、蓝牙接口、近场通信接口、磁性接口、通用串行总线接口、电感接口、谐振接口，电容耦合接口、Wi-Fi接口、TCP/IP接口、网络通信接口、光学接口、声学接口或任何传统的通信接口。
电子设备200还包括显示器270。显示器270可以位于输入表面220后方，或者可以与其集成一体。显示器270可以通信地耦接至处理器210。处理器210可以使用显示器270向用户呈现信息。在很多情况下，处理器210使用显示器270来呈现用户可以与之交互的界面。在许多情况下，用户操纵触控笔100与界面进行交互。
对于本领域的技术人员而言将显而易见的是，上文关于电子设备200所呈现的具体细节中的一些细节可为实践特定的所述实施方案或其等同物所不需要的。类似地，其他电子设备可以包括更多数量的子***、模块、部件等。在适当的情况下，一些子模块可以被实现为软件或硬件。因此，应当理解，上述描述并非旨在穷举或将本公开限制于本文所述的精确形式。相反，对于本领域的普通技术人员而言将显而易见的是，根据上述教导内容，许多修改和变型是可能的。
图8为本申请实施例提供的一种无线键盘的硬件结构示意图。参照图8，该无线键盘300可以包括处理器310，存储器320，充电接口330，充电管理模块340，无线充电线圈350，电池360，无线通信模块370，触控板380，键盘390。
其中，上述处理器310，存储器320，充电接口330，充电管理模块340，电池360，无线通信模块370，触控板380，键盘390等均可以设置在无线键盘300的键盘主体(即如图1所示的第二部分302)上。上述无线充电线圈350可以设置在用于活动连接键盘主体和支架的连接部304(如图4所示)中。可以理解的是，本实施例示意的结构并不构成对无线键盘300的具体限定。在另一些实施例中，无线键盘300可以包括比图示更多或更少的部件，或者组合某些部件，或者拆分某些部件，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。
其中，存储器320可以用于存储程序代码，如用于为触控笔100无线充电的程序代码等。存储器320中还可以存储有用于唯一标识无线键盘300的蓝牙地址。另外，该存储器320中还可以存储有与无线键盘300之前成功配对过的电子设备的连接数据。例如，该连接数据可以为与该无线键盘300成功配对过的电子设备的蓝牙地址。基于该连接数据，无线键盘300能够与该电子设备自动配对，而不必配置与其之间的连接，如进行合法性验证等。上述蓝牙地址可以为媒体访问控制(media access control，MAC)地址。
处理器310可以用于执行上述应用程序代码，调用相关模块以实现本申请实施例中无线键盘300的功能。例如，实现无线键盘300有线充电功能，反向无线充电功能，无线通信功能等。处理器310可以包括一个或多个处理单元，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310中。处理器310具体可以是集成的控制芯片，也可以由包括各种有源和/或无源部件的电路组成，且该电路被配置为执行本申请实施例描述的属 于处理器310的功能。其中，无线键盘300的处理器可以是微处理器。
无线通信模块370可以用于支持无线键盘300与其他电子设备之间包括蓝牙(bluetooth，BT)，全球导航卫星***(global navigation satellite system，GNSS)，无线局域网(wireless local area networks，WLAN)(如无线保真(wireless fidelity，Wi-Fi)网络)，调频(frequency modulation，FM)，近距离无线通信技术(near field communication，NFC)，红外技术(infrared，IR)等无线通信的数据交换。
在一些实施例中，该无线通信模块370可以为蓝牙芯片。该无线键盘300可以是蓝牙键盘。无线键盘300可以通过该蓝牙芯片与其他电子设备的蓝牙芯片之间进行配对并建立无线连接，以通过该无线连接实现无线键盘300和其他电子设备之间的无线通信。
另外，无线通信模块370还可以包括天线，无线通信模块370经由天线接收电磁波，将电磁波信号调频以及滤波处理，将处理后的信号发送到处理器310。无线通信模块370还可以从处理器310接收待发送的信号，对其进行调频，放大，经天线转为电磁波辐射出去。
在一些实施例中，无线键盘300可以支持有线充电。具体的，充电管理模块340可以通过充电接口330接收有线充电器的充电输入。
在另一些实施例中，无线键盘300可以支持正向无线充电。充电管理模块340可以通过无线键盘300的无线充电线圈350接收无线充电输入。具体的，充电管理模块340与无线充电线圈350通过匹配电路连接。无线充电线圈350可以与上述无线充电器的无线充电线圈耦合，感应无线充电器的无线充电线圈350发出的交变电磁场，产生交变电信号。无线充电线圈350产生的交变电信号经过匹配电路传输至充电管理模块340，以便为电池360无线充电。
其中，充电管理模块340为电池360充电的同时，还可以为无线键盘300供电。充电管理模块340接收电池360的输入，为处理器310，存储器320，外部存储器和无线通信模块370等供电。充电管理模块340还可以用于监测电池360的电池容量，电池循环次数，电池健康状态(漏电，阻抗)等参数。在其他一些实施例中，充电管理模块340也可以设置于处理器310中。
在另一些实施例中，无线键盘300可以支持反向无线充电。具体的，充电管理模块340还可以接收充电接口330或者电池360的输入，将充电接口330或者电池360输入的直流电信号转换为交流电信号。该交流电信号经过匹配电路传输至无线充电线圈350。无线充电线圈350接收到该交流电信号可以产生交变电磁场。其他移动终端的无线充电线圈感应该交变电磁场，可以进行无线充电。即无线键盘300还可以为其他移动终端无线充电。在一种实施例中，无线充电线圈350可以设置在无线键盘300的收纳部303中，触控笔100的笔杆组件20内设置有无线充电线圈，当触控笔100放置在收纳部303中时，无线键盘300可以通过无线充电线圈350，为触控笔100进行充电。
需要说明的是，上述匹配电路可以集成在充电管理模块340中，该匹配电路也可以独立于充电管理模块340，本申请实施例对此不作限制。图8以匹配电路可以集成在充电管理模块340中为例，示出无线键盘300的硬件结构示意图。
充电接口330，可以用于提供无线键盘300与其他电子设备(如该无线键盘300的有线充电器)之间进行充电或通信的有线连接。
上述触控板380中集成有触摸传感器。笔记本电脑可以通过触控板380和键盘390接收用户对笔记本电脑的控制命令。
可以理解的是，本申请实施例示意的结构并不构成对无线键盘300的具体限定。其可以具有比图8示出的更多的或者更少的部件，可以组合两个或更多的部件，或者可以具有不同的部件配置。例如，上述无线键盘300的壳体上还可以设置有用于收纳触控笔100的收纳腔。上述无线充电线圈350设置于上述收纳腔内，用于当触控笔100收纳于上述收纳腔内后，为该触控笔100无线充电。
又例如，在无线键盘300的外表面还可以包括按键、指示灯(可以指示电量、呼入/呼出、配对模式等状态)、显示屏(可以提示用户相关信息)等部件。其中，该按键可以是物理按键或触摸按键(与触摸传感器配合使用)等，用于触发开机、关机、开始充电、停止充电等操作。
然而，在相关技术中，触控笔100的压力信号通过压感组件60传递和检测，压感组件60通过主轴组件50与笔尖组件10的连接端12连接，压感组件60的部分固定连接在笔杆组件20内，压感组件60的部分与主轴组件50固定相连。通过笔尖组件10移动带动主轴组件50移动，主轴组件50驱动压感组件60移动以使压感组件60形变，压感组件60与电路板70电连接，电路板70根据压感组件60的形变检测笔尖组件10的书写端11的压力，从而控制书写端11的线条粗细。
这样，通过在触控笔100内设置压感组件60来实现压感信号的传递和检测，导致触控笔100内布置的零件较多，触控笔100的制造及装配工艺复杂，增大了触控笔100的生产成本。
对此，本实施例提供的触控笔100通过与笔尖组件连接的主轴将压感信号传递至压力传感器组件，通过压力传感器组件检测压感信号，避免了在触控笔100内设置压感组件60而导致零件多、装配复杂的问题，简化了触控笔100的结构，降低了触控笔100的成本；并且，提升了压感信号的检测灵敏度，提升了定位笔尖组件10位置的精准度。
以下对本申请实施例的触控笔100进行详细说明。
图9为本申请实施例提供的触控笔的局部结构图；图10为图9的***图；图11为图9的主视图；图12为图11中沿A-A的剖视图；图13为图9中去除笔尖组件后的主视图；图14为图13中沿B-B的剖视图。
参照图9所示，本实施例提供的触控笔100包括笔杆组件20(图中未示出)和笔尖组件10，笔尖组件10位于笔杆组件20的一端，且笔尖组件10和笔杆组件20之间活动连接，笔尖组件10和笔杆组件20之间的连接部位具有间隙10a，笔尖组件10可在该间隙10a内相对笔杆组件20移动。
为便于展示笔杆组件20的内部结构，图9中省略了笔杆组件20，可以理解的是，笔杆组件20和笔尖组件10连接，图中位于笔杆组件20一侧的结构均位于笔杆组件20内部。图10至图14中同样省略了笔杆组件20，而仅展示笔杆组件20内部结构和零件，不再赘述。
当使用者操纵触控笔100时，笔尖组件10接触到电子设备200的触控屏201，并给触控屏201一定的压力，根据作用力与反作用力的原理，笔尖组件10会受到相应的压力。此时，笔尖组件10朝向笔杆组件20移动，笔尖组件10将其受到的力传递至笔杆组件20， 通过笔杆组件20检测笔尖组件10受到的压力，并根据该压力的大小来调节笔尖组件10书写的线条粗细。
具体的，参照图10所示，触控笔100内设置有第一电极44、信号板71和控制板(图中未示出)。参照图11和图12所示，第一电极44固定在笔尖组件10的书写端11，信号板71沿触控笔100的轴向设置，且信号板71的部分位于所述笔尖组件10内，信号板71伸入笔尖组件10内的一端与第一电极44连接，信号板71与控制板之间电连接。
第一电极44可以为发射电极，例如，第一电极44用于向电子设备200发射第一信号，电子设备200根据第一电极44发射的第一信号，确定触控笔100的笔尖组件10在触控屏201上的位置。其中，通过控制板控制第一电极44向电子设备200发射第一信号，例如，控制板上集成有控制器，控制器向信号板71传输控制信号，第一电极44根据该控制信号向电子设备200发射第一信号。
示例性的，第一电极44可以通过注塑工艺直接成型在笔尖组件10的书写端11，例如，第一电极44通过激光直接成型(Laser Direct Structuring，LDS)工艺成型。通过信号板71伸入笔尖组件10内与第一电极44连接，第一电极44的整体结构集中在笔尖组件10的书写端11，这样，第一电极44与触控笔100之间的间距较小，第一电极44与电子设备200之间的信号传输距离短，可以提升电子设备200对触控笔100的笔尖组件10位置的检测精度。
另外，由于笔尖组件10内的空间狭小，为了便于信号板71伸入笔尖组件10内，信号板71通常设计为窄条状的电路板，窄条状的信号板71的强度通常较低，触控笔100在长期使用过程中，笔尖组件10反复带动信号板71移动，可能会影响信号板71的稳定性，进而影响信号板71的性能。
参照图10所示，为了增大信号板71的强度，信号板71上可以连接有加强件713，加强件713可以覆盖信号板71的两侧板面的部分区域。通过在信号板71的两侧板面连接加强件713，增大信号板71的强度，防止信号板71翘曲或弯折。
示例性的，加强件713可以包括至少两个加强板，两个加强板分别贴合在信号板71的两侧板面；或者，加强板可以为开设有安装槽2114的加强块，信号板71卡入加强块的安装槽2114内。加强件713可以具有较高的强度和刚度，例如，加强件713的材质为不锈钢。
继续参照图10，信号板71和控制板之间通过柔性电连接组件72连接，柔性电连接组件72可以包括柔性电路板721和电连接器722，柔性电路板721的一端连接在信号板71上，电连接器722连接在柔性电路板721朝向控制板的一端，通过电连接器722与控制板连接。
示例性的，电连接器722可以通过表面贴装技术(Surface Mount Technology，SMT)与柔性电路板721焊接在一起，构成柔性电连接组件72。
本实施例中，柔性电路板721的两端之间可以具有弯折部7211，通过设置折弯部使柔性电路板721留有伸缩余量。在笔尖组件10相对笔杆组件20移动时，例如，笔尖组件10向背离笔杆组件20的方向移动时，笔尖组件10带动第一电极44和信号板71向背离笔杆组件20的方向移动，信号板71与固定在笔杆组件20内的控制板之间的距离增大，连接在信号板71与控制板之间的柔性电路板721被拉长，柔性电路板721上的折弯部在柔性 电路板721被拉长时呈展开状态，防止柔性电路板721被拉扯，避免柔性电路板721在长期使用过程中撕裂，保障信号板71与控制板之间的电性能。
继续参照图10，触控笔100内还设置有压力传感器组件90和主轴52。结合图11和图12所示，压力传感器组件90固定在笔杆组件20内，例如，压力传感器组件90靠近控制板设置，压力传感器组件90和控制板之间电连接；主轴52沿触控笔100的轴向设置，主轴52的一端与笔尖组件10连接，主轴52的另一端与压力传感器组件90接触。
笔尖组件10朝向笔杆组件20移动时，笔尖组件10带动主轴52朝向压力传感器组件90移动，主轴52对压力传感器组件90产生压力，压力传感器组件90通过检测主轴52对其产生的压力，并将该压力信号传输至控制板，控制板根据该压力信号确定笔尖组件10的压力，并根据笔尖组件10的压力控制笔尖组件10书写的线条粗细。
与如图2B所示的方案在笔杆组件20内设置压感组件60，通过压感组件60自身形变传递压感信号，并通过应变片感应压感组件60的形变来检测笔尖组件10的压力相比较，本实施例通过在笔杆组件20内设置压力传感器组件90，并通过主轴52将笔尖组件10的压力传递至压力传感器组件90，检测笔尖组件10的压力，简化了笔尖组件10的压力的传递方式，且压力传感器组件90的检测精度高，可提高笔尖组件10的压力的检测精度，从而，提升了笔尖组件10书写粗细的精度。
另外，笔尖组件10的压力通过主轴52传递至压力传感器组件90，无需在触控笔100内设置传递压力并产生形变的压感组件60，触控笔100内设置的零件较少，可简化触控笔100的生产及组装工艺，降低触控笔100的成本。
继续参照图10，触控笔100内还设置有第二电极45，第二电极45与控制板电连接。示例性的，第二电极45可以用于检测触控笔100相对触控屏201的倾斜角度。例如，以位于笔尖组件10的书写端11内的第一电极44作为参考，根据第二电极45和第一电极44之间的相对位置关系，确定触控笔100的倾斜角度。
在一种实施方式中，第二电极45可以为发射电极，例如，第二电极45用于向电子设备200发射第二信号，电子设备200根据第二电极45发射的第二信号，确定触控笔100相对于触控屏201的倾斜角度。其中，当第二电极45为发射电极时，第二电极45即为上述第二发射电极42。
在另一种实施方式中，第二电极45既可以向电子设备200发射第二信号，并且，第二电极45还可以接收电子设备200向触控笔100发射的信号，第二电极45可将接收到的信号传输至控制板，控制板根据接收到的控制信号控制触控笔100执行电子设备200发送的命令。
针对于第二电极45既可以发射信号又可以接收信号的情况，第二电极45可以包括信号发射模块和信号接收模块。其中，信号发射模块用于向电子设备200发射第二信号，电子设备200根据第二电极45的信号发射模块发射的第二信号，确定触控笔100的倾斜角度；信号接收模块用于接收电子设备200向触控笔100发射的信号，触控笔100的控制板通过第二电极45的信号接收模块接收到的信号，控制触控笔100执行电子设备200发送的命令。
或者，在其他实施方式中，触控笔100内单独设置有接收电极，接收电极与控制板电连接，通过接收电极接收电子设备200向触控笔100发射的信号。以下均以第二电极45 既可以向电子设备200发射第二信号，又可以接收电子设备200向触控笔100发射的信号为例进行说明，不再赘述。
参照图11和图12所示，具体的，第二电极45套设在信号板71上，且第二电极45与信号板71电连接，控制板将控制信号传输至信号板71，第二电极45根据该控制信号向电子设备200发射第二信号，电子设备200根据接收到的第二信号确定触控笔100的倾斜角度。
通过将第二电极45套设在信号板71上，笔尖组件10带动第一电极44和信号板71移动时，第二电极45随着笔尖组件10的移动而移动，第二电极45和第一电极44之间的相对位置保持不变，因而，电子设备200可以精确测定触控笔100的倾斜角度。第一电极44和第二电极45相配合，可以使电子设备200对触控笔100在触控屏201上的位置及触控笔100相对触控屏201的倾斜角度的精确测量。
继续参照图10所示，本实施例中，压力传感器组件90可以包括压力传感器91和电连接件92，压力传感器91用于检测笔尖组件10的压力，电连接件92用于将压力传感器91与控制板电连接，将压力传感器91检测的压力信号传输至控制板，控制板根据该压力信号确定笔尖组件10的压力，并根据笔尖组件10的压力向信号板71传输相应的控制信号，控制笔尖组件10书写的线条粗细。
参照图12所示，压力传感器91的一侧表面与主轴52的端部抵接，电连接件92连接在压力传感器91的另一侧表面，且电连接件92与控制板电连接。笔尖组件10朝向笔杆组件20移动时，主轴52朝向压力传感器91移动并挤压压力传感器91，压力传感器91检测主轴52对其压力，并通过电连接件92将压力信号传输至控制板。
其中，电连接件92例如为印制电路板(Printed Circuit Board，PCB)，压力传感器91连接在PCB上，PCB可以外缘可以伸出有引脚921，PCB的引脚921与控制板连接，实现压力传感器91与控制板的电连接。
为了提高压力传感器91检测笔尖组件10的压力的精确度，本实施例中，主轴52的轴线和压力传感器91的中轴线均可以与笔杆组件20的中轴线重合。针对于触控笔100在使用者手中自转至不同方位的情况，通过主轴52的轴线与笔杆组件20的中轴线重合，笔尖组件10的压力均直线传递至主轴52，压力传感器91与笔杆组件20的中轴线重合，主轴52将笔尖组件10的压力直线传递至压力传感器91。
笔尖组件10的压力沿触控笔100的中轴线直线传递至压力传感器91，可以提高力的线性度及各向同性，继而，触控笔100在使用者手中自转至不同方向时，若来自笔尖组件10的压力不变，则压力传感器91检测到的压力不会发生变化，这样，控制板根据压力传感器91检测到的压力，控制笔尖组件10书写的线条粗细不变。如此，可提高压力传感器91检测笔尖组件10的压力的准确度，提升触控笔100的书写精度。
参照图12所示，在一些实施方式中，压力传感器组件90还可以包括缓冲件93，缓冲件93贴合在电连接件92背离压力传感器91的一侧表面。具体的，缓冲件93用于对压力传感器91受到的作用力进行缓冲，当笔尖组件10的压力过大，主轴52作用于压力传感器91的力过大时，压力传感器91对缓冲件93的作用力，可使缓冲件93发生一定程度的压缩变形，压力传感器91可背离主轴52产生微小移动，以缓冲作用于压力传感器91的压力，避免因受到过大压力而使压力传感器91性能受损。
示例性的，缓冲件93可以为橡胶件或硅胶件等具有一定强度的弹性件523。
在组装压力传感器组件90时，可以先将压力传感器91连接在电连接件92上，例如，将压力传感器91焊接在PCB上；再将电连接件92固定在缓冲件93上，例如，通过背胶将PCB粘贴在缓冲件93上。
继续参照图10，触控笔100内还设置有固定支架21，固定支架21固定于笔杆组件20内，固定支架21用于固定压力传感器组件90，将压力传感器组件90固定在笔杆组件20内。具体的，固定支架21包括主体211，主体211内具有容纳腔2111，主体211朝向主轴52的一端具有开口，开口与容纳腔2111连通，压力传感器组件90通过开口安装至容纳腔2111内。
在实际应用中，压力传感器组件90可以粘接固定在固定支架21主体211的容纳腔2111内，例如，通过背胶将压力传感器组件90的缓冲垫粘贴在容纳腔2111的底端面上。其中，容纳腔2111的底端面为与容纳腔2111的开口相对的底面。
另外，参照图10所示，可以在固定支架21的主体211的侧壁上开设定位孔2113，该定位孔2113与电连接件92(例如PCB)的位置相对应，电连接件92的引脚921通过该定位孔2113伸出至固定支架21外；并且，固定支架21主体211外壁上朝向控制板的一端可以设有安装槽2114，该安装槽2114与定位孔2113连通，电连接件92的引脚921伸出至定位孔2113后沿安装槽2114向控制板伸出。
在一种实施方式中，控制板可以通过固定支架21固定在笔杆组件20内。具体的，参照图10所示，固定支架21还可以包括支撑板212，支撑板212连接在主体211背离主轴52的一侧，控制板的至少部分位于支撑板212上，且控制板与支撑板212固定连接，例如，控制板的一端焊接、粘接或通过螺钉、螺栓等连接件连接在支撑板212上。
继续参照图10，触控笔100内可以设置有绝缘套筒22，绝缘套筒22套设在信号板71上，第二电极45套设在绝缘套筒22的外壁上。这样，绝缘套筒22可以用来固定第二电极45并实现第二电极45与信号板71的电连接，并且，通过绝缘套筒22的绝缘隔离作用，可减弱第二电极45与信号板71之间的干扰作用。
具体的，参照图13和图14所示，绝缘套筒22上开设有第一贯通孔221，信号板71上套设有第一导电件711，第一导电件711的位置与第一贯通孔221的位置相对应，第二电极45的部分伸入第一贯通孔221内与第一导电件711接触，实现第二电极45与信号板71的电连接。
另外，参照图10所示，触控笔100内还可以设置有接地电极43，接地电极43用于减弱第二电极45和第一电极44之间的信号干扰现象。接地电极43也可以套设在绝缘套筒22上，通过绝缘套筒22同时固定第二电极45和接地电极43，并实现信号板71与第二电极45、接地电极43的绝缘隔离。
其中，接地电极43位于第二电极45靠近第一电极44的一侧，这样，接地电极43位于第一电极44和第二电极45之间，接地电极43减弱第一电极44和第二电极45之间信号干扰的效果较好。
与第二电极45与信号板71的电连接类似的，绝缘套筒22上还开设有第二贯通孔222，信号板71上还套设有第二导电件712，第二导电件712的位置与接地电极43的位置相对应，接地电极43的部分伸入第二贯通孔222内与第二导电件712接触，实现接地电极43 与信号板71的电连接。
套设在信号板71上的绝缘套筒22可以增大信号板71的强度，参照图14所示，绝缘套筒22伸入主轴52内与主轴52连接，通过绝缘套筒22实现第一电极44及信号板71与主轴52的固定连接，这样，第一电极44、信号板71、绝缘套筒22及主轴52组成一个整体，随笔尖组件10的移动而移动。
在实际应用中，组装信号板71、绝缘套筒22和主轴52时，可以先将加强件713、第一导电件711和第二导电件712固定在信号板71上，例如，加强件713、第一导电件711和第二导电件712均通过SMT工艺贴装在信号板71表面；然后，通过模内注塑工艺(In-Mold Decoration，IMD)将加强件713、第一导电件711、第二导电件712及信号板71整体与绝缘套筒22结合在一起；之后，再通过LDS工艺将第二电极45和接地电极43注塑在绝缘套筒22的外壁上。
信号板71、绝缘套筒22及第二电极45和接地电极43组装成型之后，再整体装配到主轴52中。示例性的，可以通过在绝缘套筒22外壁上的局部区域点胶，通过点胶将绝缘套筒22固定在主轴52内。其中，点胶，是一种工艺，也称施胶、涂胶、灌胶、滴胶等，是把电子胶水、油或者其他液体涂抹、灌封、点滴到产品上，让产品起到黏贴、灌封、绝缘、固定、表面光滑等作用。
继续参照图10，触控笔100内还可以设置有固定套筒23。参照图14所示，固定套筒23固定在笔杆组件20内，主轴52伸入固定套筒23内，固定套筒23对主轴52的移动具有导向作用。主轴52在笔杆组件20内移动时，主轴52沿固定套筒23的内壁移动，固定套筒23可保证主轴52沿笔杆组件20的轴向移动，以免主轴52在移动过程中偏离触控笔100的轴线，避免由此降低压力传感器91对笔尖组件10的压力的检测精度。
另外，固定套筒23还可以限定主轴52的移动范围。具体的，参照图14所示，主轴52朝向笔尖组件10的一端的外壁上可以设有第一限位部521，例如，第一限位部521为凸出在主轴52外壁上且沿主轴52外壁的周向延伸的环形挡台。在笔尖组件10朝向笔杆组件20移动时，第一限位部521可以和固定套筒23朝向笔尖组件10的一端抵接，这样，第一限位部521可以限定笔尖组件10的移动范围。
需要说明的是，当笔尖组件10处于未受力的状态时，第一限位部521和固定套筒23朝向笔尖组件10的端部之间的间距，可以小于笔尖组件10和笔杆组件20之间的间隙10a，如此，笔尖组件10移动至第一限位部521与固定套筒23的端部抵接时，笔尖组件10和笔杆组件20之间仍具有微小间隙，可避免笔尖组件10与笔杆组件20发生碰撞，保障笔尖组件10顺利移动。
继续参照图14，主轴52背离笔尖组件10的一端的外壁上还可以设有第二限位部522，与第一限位部521类似的，第二限位部522例如为凸出在主轴52外壁上且沿主轴52外壁的周向延伸的环形挡台。主轴52的外壁上还套设有弹性件523，弹性件523卡设在固定套筒23背离笔尖组件10的一端及主轴52上的第二限位部522之间。
通过在固定套筒23端部和第二限位部522之间卡设弹性件523，弹性件523例如为预压弹簧，在笔尖组件10未受力时，弹性件523处于压缩状态。这样，在笔尖组件10未受力的状态下，弹性件523被压缩的弹性力对主轴52的作用力，可以保证主轴52与压力传感器91紧密接触。而在笔尖组件10受力带动主轴52朝向笔杆组件20移动时，主轴52 对压力传感器91的作用力增大。如此，通过设置预压的弹性件523，可保证主轴52始终与压力传感器91接触，提高压力传感器91对笔尖组件10的压力检测的精确度。
需要说明的是，可以将笔尖组件10未受力时，弹性件523对压力传感器91预压的压力作为参考值，笔尖组件10受力移动后，主轴52对压力传感器91的压力增大，将压力传感器91检测的压力减去参考值作为实际检测的笔尖组件10的压力。
参照图10所示，为了实现固定套筒23和固定支架21在笔杆组件20内的固定，在一种实施方式中，固定套筒23朝向固定支架21的一端可以设有限位柱231，固定支架21的主体211的侧壁上可以设有限位槽2112，固定套筒23上的限位柱231卡入固定支架21上的限位槽2112内。
通过固定套筒23上的限位柱231和固定支架21上的限位槽2112的相互配合，可避免固定套筒23和固定支架21在笔杆组件20内旋转。这样，在安装固定套筒23和固定支架21时，可以将固定套筒23和固定支架21中的一者固定在笔杆组件20内，例如，将固定支架21通过焊接或点胶等方式固定在笔杆组件20内，固定套筒23通过其限位柱231与固定支架21的限位槽2112的配合，即可固定在笔杆组件20内，而无需另外对固定套筒23进行固定。
或者，为了确保固定套筒23在笔杆组件20内连接牢固，在固定支架21固定在笔杆组件20内、固定套筒23通过限位柱231与固定支架21插接固定的基础上，固定套筒23的外壁也可以通过焊接或点胶等方式与笔杆组件20内壁或笔杆组件20内的固定件连接。
如前所述，柔性电连接组件72的柔性电路板721与信号板71连接，具体的，柔性电路板721可以沿固定支架21及固定套筒23的外壁进行布置，即柔性电路板721的部分贴设在固定支架21及固定套筒23的外壁上，且柔性电路板721沿固定支架21及固定套筒23的外壁延伸，通过固定支架21及固定套筒23对柔性电路板721的该部分进行固定。
示例性的，柔性电路板721位于固定支架21及固定套筒23的外壁上的部分，可以通过点胶方式固定在固定支架21及固定套筒23的外壁上。
参照图14所示，柔性电路板721沿固定支架21及固定套筒23延伸，且柔性电路板721穿过固定套筒23的侧壁和主轴52的侧壁伸入主轴52内与信号板71连接。具体的，参照图10所示，主轴52的侧壁上开设有第一安装孔524，固定套筒23的侧壁上开设有第二安装孔232，且第二安装孔232与第一安装孔524贯通，柔性电路板721穿过第二安装孔232和第一安装孔524伸入主轴52内与信号板71连接。
继续参照图14，柔性电路板721上的弯折部7211对应第一安装孔524和第二安装孔232的部位设置，沿固定支架21及固定套筒23的外壁延伸的柔性电路板721通过弯折部7211改变延伸方向，示例性的，弯折部7211可以沿大致与笔杆组件20的径向方向延伸，这样，柔性电路板721在弯折部7211的部位由笔杆组件20的内壁向笔杆组件20的中轴线方向延伸，使柔性电路板721的端部延伸至贴合在信号板71上。
另外，柔性电路板721的弯折部7211可以具有一定的富余量，例如，弯折部7211的长度可以大于固定套筒23的外壁至信号板71的板面之间的间距。这样，在笔尖组件10处于未受力的状态时，柔性电路板721的弯折部7211处于松弛状态，在笔尖组件10受力朝向笔杆组件20移动时，信号板71与控制板之间的距离缩短，柔性电路板721原本处于松弛状态的弯折部7211仍然处于松弛状态。如此，可以避免在笔尖组件10背离笔杆组件 20移动时，柔性电路板721被拉扯，避免柔性电路板721在长期使用过程中撕裂或断裂，保证柔性电路板721的长期使用性能。
继续参照图10，在一些实施方式中，固定套筒23的第二安装孔232上可以盖设有端盖233。参照图14所示，通过在第二安装孔232上盖设端盖233，端盖233覆盖第二安装孔232使固定套筒23的外壁具有较为完整的表面，便于在固定套筒23的外壁及笔杆组件20的内壁之间的空间内布置器件，例如，在固定套筒23的外壁布置线路。
示例性的，端盖233的可以和固定套筒23的外壁平齐，使固定套筒23具有平滑的表面，有利于在固定套筒23的外壁布置柔性器件。
另外，参照图14，端盖233和第二安装孔232的局部区域的内壁之间可以具有间隙，例如，第二安装孔232靠近压力传感器组件90一侧的内壁与端盖233之间具有间隙，柔性电路板721的弯折部7211位于该间隙内，以免端盖233挤压柔性电路板721，在长期使用过程中造成柔性电路板721磨损甚至断裂。笔尖组件10移动时，带动柔性电路板721的弯折部7211在该间隙内移动，可保护柔性电路板721不被挤压和磨损。
本实施例提供的触控笔100，通过在触控笔100内设置主轴52和压力传感器组件90，主轴52的一端与笔尖组件10连接，压力传感器组件90固定在笔杆组件20内且与主轴52的另一端接触，笔尖组件10受力移动带动主轴52移动，主轴52朝向笔杆组件20移动并将笔尖组件10的压力传递至压力传感器组件90，通过压力传感器组件90检测笔尖组件10的压力；这样，简化了笔尖组件10的压力的传递方式，触控笔100内设置的零件较少，触控笔100的生产及组装工艺简单，降低了触控笔100的成本，并且，可提高笔尖组件10的压力的检测精度，提升笔尖组件10书写粗细的精度。
通过信号板71伸入笔尖组件10内与位于笔尖组件10书写端11的第一电极44连接，减小了第一电极44的尺寸，缩短了第一电极44与触控屏201之间的间距，提高了电子设备200对触控笔100的笔尖组件10的定位精度；并且，通过将第二电极45套设在信号板71上，笔尖组件10移动可带动第一电极44及第二电极45同步移动，第二电极45与第一电极44之间的相对位置不变，提升了电子设备200对触控笔100相对触控屏201的倾斜角度的测量精度。
通过柔性电连接组件72的两端分别与信号板71和控制板连接，实现信号板71和控制板之间的信号传输，并且，通过在柔性电连接组件72的两端之间设置弯折部7211，弯折部7211使柔性电连接组件72具有一定的伸长余量，避免在笔尖组件10背离笔杆组件20移动时，柔性电连接组件72被拉扯而撕裂或损坏，保障柔性电连接组件的长期使用性能。
在本申请实施例的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应作广义理解，例如，可以是固定连接，也可以是通过中间媒介间接相连，可以是两个元件内部的连通或者两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
本申请实施例的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。

Claims (18)

  1. 一种触控笔，其特征在于，包括笔杆组件和笔尖组件，所述笔尖组件位于所述笔杆组件一端且与所述笔杆组件之间具有间隙；
    还包括第一电极、第二电极、信号板、主轴、压力传感器组件、控制板及柔性电连接组件，所述第一电极的一端位于所述笔尖组件的书写端，所述信号板伸入所述笔尖组件内并与所述第一电极的另一端连接，所述第二电极套设在所述信号板上并与所述信号板电连接；
    所述压力传感器组件固定在所述笔杆组件内，所述主轴的一端与所述笔尖组件连接，所述主轴的另一端与所述压力传感器组件接触，且所述压力传感器组件与所述控制板电连接；所述柔性电连接组件的一端与所述信号板连接，所述柔性电连接组件的另一端与所述控制板电连接；其中，所述柔性电连接组件的两端之间具有弯折部。
  2. 根据权利要求1所述的触控笔，其特征在于，所述压力传感器组件包括压力传感器和电连接件，所述压力传感器的一侧表面与所述主轴的端部抵接，所述电连接件连接在所述压力传感器的另一侧表面，所述电连接件与所述控制板电连接。
  3. 根据权利要求2所述的触控笔，其特征在于，所述主轴和所述压力传感器的中轴线均与所述笔杆组件的中轴线重合。
  4. 根据权利要求2所述的触控笔，其特征在于，所述压力传感器组件还包括缓冲件，所述缓冲件贴合在所述电连接件背离所述压力传感器的一侧表面。
  5. 根据权利要求1-4任一项所述的触控笔，其特征在于，还包括固定支架，所述固定支架固定于所述笔杆组件内，所述固定支架包括具有容纳腔的主体，所述容纳腔的开口朝向所述主轴，所述压力传感器组件位于所述容纳腔内。
  6. 根据权利要求5所述的触控笔，其特征在于，所述固定支架还包括支撑板，所述支撑板连接在所述主体背离所述主轴的一侧，所述控制板的一端连接在所述支撑板上。
  7. 根据权利要求1-4任一项所述的触控笔，其特征在于，还包括绝缘套筒，所述绝缘套筒套设在所述信号板上，所述第二电极套设在所述绝缘套筒的外壁上，且所述绝缘套筒的部分伸入所述主轴内与所述主轴连接；
    其中，所述绝缘套筒上设置有第一贯通孔，所述信号板上套设有第一导电件，所述第二电极的部分伸入所述第一贯通孔内与所述第一导电件接触。
  8. 根据权利要求7所述的触控笔，其特征在于，还包括接地电极，所述接地电极套设在所述绝缘套筒的外壁上，且所述接地电极位于所述第二电极靠近所述第一电极的一侧；
    其中，所述绝缘套筒上设有第二贯通孔，所述信号板上套设有第二导电件，所述接地电极的部分伸入所述第二贯通孔内与所述第二导电件接触。
  9. 根据权利要求5-8任一项所述的触控笔，其特征在于，还包括固定套筒，所述固定套筒固定在所述笔杆组件内，所述主轴伸入所述固定套筒内，所述主轴朝向所述笔尖组件的一端的外壁上设有第一限位部；所述第一限位部用于在所述笔尖组件朝向所述笔杆组件移动时，与所述固定套筒朝向所述笔尖组件的一端抵接。
  10. 根据权利要求9所述的触控笔，其特征在于，所述主轴的外壁上套设有弹性件，所述主轴背离所述笔尖组件的一端的外壁上设有第二限位部，所述弹性件卡设在所述固定 套筒背离所述笔尖组件的一端及所述第二限位部之间。
  11. 根据权利要求9所述的触控笔，其特征在于，所述固定套筒朝向所述固定支架的一端设有限位柱，所述固定支架的主体的侧壁上设有限位槽，所述限位柱卡入所述限位槽内。
  12. 根据权利要求9所述的触控笔，其特征在于，所述主轴的侧壁上开设有第一安装孔，所述固定套筒的侧壁上开设有第二安装孔，所述第二安装孔与所述第一安装孔贯通，所述柔性电连接组件的一端通过所述第二安装孔和所述第一安装孔伸入所述主轴内与所述信号板连接。
  13. 根据权利要求12所述的触控笔，其特征在于，所述柔性电连接组件包括柔性电路板和电连接器，所述电连接器连接在所述柔性电路板朝向所述控制板的一端，所述弯折部位于所述柔性电路板上；
    其中，所述柔性电路板沿所述固定支架及所述固定套筒的外壁延伸，且所述弯折部穿过所述第二安装孔和第一安装孔，使所述柔性电路板的端部贴合在所述信号板上。
  14. 根据权利要求12所述的触控笔，其特征在于，所述固定套筒的所述第二安装孔上盖设有端盖。
  15. 根据权利要求1-14任一项所述的触控笔，其特征在于，还包括加强件，所述加强件覆盖所述信号板的两侧板面的部分区域。
  16. 根据权利要求1-15任一项所述的触控笔，其特征在于，所述第一电极为发射电极，所述第二电极包括信号发射模块和信号接收模块。
  17. 一种电子设备组件，其特征在于，包括电子设备和权利要求1-14任一项所述的触控笔。
  18. 根据权利要求17所述的电子设备组件，其特征在于，还包括：无线键盘，所述无线键盘上具有收纳所述触控笔的收纳部。
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US20240168572A1 (en) 2024-05-23

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