WO2022193873A1 - 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
WO2022193873A1
WO2022193873A1 PCT/CN2022/075710 CN2022075710W WO2022193873A1 WO 2022193873 A1 WO2022193873 A1 WO 2022193873A1 CN 2022075710 W CN2022075710 W CN 2022075710W WO 2022193873 A1 WO2022193873 A1 WO 2022193873A1
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WO
WIPO (PCT)
Prior art keywords
electrode
circuit board
stylus
pen
wall
Prior art date
Application number
PCT/CN2022/075710
Other languages
English (en)
French (fr)
Inventor
赵勇
牟欣
彭永锋
张北航
臧永强
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 EP22750989.0A priority Critical patent/EP4092510A4/en
Priority to US17/801,015 priority patent/US20240201806A1/en
Publication of WO2022193873A1 publication Critical patent/WO2022193873A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
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    • 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
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    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
    • G06F1/1698—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 the I/O peripheral being a sending/receiving arrangement to establish a cordless communication link, e.g. radio or infrared link, integrated cellular phone
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    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
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    • H—ELECTRICITY
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    • H—ELECTRICITY
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    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • H—ELECTRICITY
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    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H—ELECTRICITY
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Definitions

  • Embodiments of the present application relate to the field of terminal technologies, and in particular, to a touch pen and an electronic device assembly.
  • stylus is mainly divided into inductive stylus and capacitive stylus.
  • the capacitive touch pen is usually provided with a transmitting electrode and a receiving electrode, the transmitting electrode is used for transmitting a signal to the touch screen, and the receiving electrode is used for receiving the signal sent by the touch screen.
  • the stylus is usually provided with two emitter electrodes, and both emitter electrodes are arranged in the tip of the stylus; one emitter electrode is arranged at the tip of the stylus, and the emitter electrode is used to detect when the tip is on the touch screen.
  • the position on the top of the stylus, another emitter electrode is arranged on other parts of the pen tip, and is used to monitor the inclination of the stylus pen relative to the touch screen.
  • Embodiments of the present application provide a stylus and an electronic device assembly, which improve the operation accuracy of the stylus and improve the usability of the stylus.
  • An embodiment of the present application provides a stylus, including a pen holder and a detachable pen tip located at one end of the pen holder, the stylus further comprising a first electrode, a second electrode, a first circuit board and a second circuit board; the first electrode is provided with In the pen tip, the first electrode is connected with the first circuit board, and the first circuit board is electrically connected with the second circuit board; the second electrode is arranged on the inner wall of the pen holder, or the second electrode is arranged on the fixing member in the pen holder, The second electrode is electrically connected to the second circuit board or the first circuit board, and the second electrode is used for transmitting a second signal for measuring the inclination angle of the pen holder relative to the touch screen.
  • the distance between the second electrode and the first electrode is increased.
  • the distance can reduce the coupling phenomenon between the second electrode and the first electrode, and improve the detection accuracy of the position and tilt angle of the stylus by the electronic device, thereby improving the operation accuracy of the stylus and improving the usability of the stylus.
  • the second electrode is arranged in a part of the pen barrel close to the pen tip.
  • the distance between the second electrode and the first electrode is increased, the coupling phenomenon between the second electrode and the first electrode can be reduced or avoided, and the The detection accuracy of the position and tilt angle of the stylus by the electronic equipment; The measurement accuracy of the tilt angle of the stylus.
  • the fixing member is a connecting sleeve, and the connecting sleeve is fixed in the pen barrel.
  • the pen holder includes a cone section and a straight section, the cone section is located between the pen tip and the straight section, the second electrode is arranged on the inner wall of the cone section, and at least part of the connecting sleeve is located in the cone within the segment.
  • connection sleeve is a conductive sleeve
  • the second electrode is electrically connected to the first circuit board or the second circuit board through the connection sleeve.
  • a conductive elastic sheet is provided on the outer wall of the connection sleeve, the second electrode is in contact with the conductive elastic sheet, and a flexible electrical connector is connected between the outer wall of the connection sleeve and the first circuit board, or connected A flexible electrical connector is connected between the outer wall of the sleeve and the second circuit board.
  • the second electrode on the inner wall of the pen is in contact with the conductive elastic sheet, and the outer wall of the connection sleeve is connected with the first circuit board and the second circuit board through the flexible electrical connector, In this way, the second electrode can be electrically connected to the second circuit board through the sleeve.
  • the second electrode is arranged on the outer wall of the connecting sleeve.
  • an accommodating groove is formed on the outer wall of the connection sleeve, the second electrode is provided with a convex portion matched with the accommodating groove, and the second electrode is provided on the connecting sleeve through the convex portion in cooperation with the accommodating groove. on the outer wall of the barrel.
  • connection sleeve is a conductive sleeve
  • a flexible electrical connector is connected between the outer wall of the connection sleeve and the first circuit board, or, between the outer wall of the connection sleeve and the second circuit board A flexible electrical connector is connected.
  • a flexible electrical connector is connected to the second electrode, one end of the flexible electrical connector extends into the accommodating groove to contact the second electrode, and the other end of the flexible electrical connector is connected to the first circuit board or the first circuit board or the second electrode.
  • the second circuit board is connected.
  • the second electrode By opening an accommodating groove on the outer wall of the connecting sleeve, the second electrode is provided with a raised portion to cooperate with the accommodating groove, so that the rotation of the second electrode on the outer wall of the connecting sleeve is avoided, and the upper limit of the second electrode on the connecting sleeve is realized.
  • the function of the position wherein, for the conductive connection sleeve, by connecting the flexible electrical connector on the outer wall of the connection sleeve, the flexible electrical connector is connected with the first circuit board or the second circuit board, so that the second electrode and the first circuit board are connected to each other.
  • the board is connected to realize the electrical connection between the second electrode and the second circuit board.
  • the second electrode is integrated on a flexible circuit board
  • the flexible circuit board is attached to the outer wall of the connection sleeve, and pins are protruded from the flexible circuit board, and the pins are connected to the first circuit board or second circuit board.
  • the second circuit board By integrating the second electrode on the flexible circuit board, attaching the flexible circuit board to the outer wall of the connection sleeve, and connecting the pins protruding from the flexible circuit board to the first circuit board or the second circuit board, the second circuit board can be realized. Electrical connection of the electrodes to the second circuit 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 excitation signals to the electronic device, but also receive signals sent by the electronic device, so that there is no need to set up a receiving electrode in the stylus pen, it can be Space-saving in the stylus and easy assembly of the stylus.
  • one end of the pen tip is the writing end, the other end is the connecting end, and the connecting end extends into the pen barrel; the first electrode is located at the writing end.
  • the detection accuracy of the position of the stylus pen by the electronic device can be improved.
  • the stylus further includes a main shaft assembly and a pressure sensing assembly, the pressure sensing assembly includes a swinging member and a strain gauge, and the main shaft assembly at least includes a force transmission shaft;
  • One end of the force transmission shaft is connected to the connecting end of the pen tip, and the other end of the force transmission shaft is connected to the outer wall of the swing piece.
  • the strain gauge is attached to the end of the swing piece facing the second circuit board.
  • the strain gauge is connected to the first circuit board or the second circuit board.
  • the circuit board is electrically connected.
  • the force transmission shaft and the pressure sensing assembly By arranging the force transmission shaft and the pressure sensing assembly, one end of the force transmission shaft is connected with the pen tip, and the other end of the force transmission shaft is connected with the swinging member of the pressure sensing assembly, and the pen tip is forced to move toward the pen barrel, which can drive the force transmission shaft to move, and the force transmission
  • the shaft drives the swinging member to swing
  • the strain gauge detects the strain force generated by the swinging member, and transmits the strain force to the second circuit board in the form of a signal.
  • the second circuit board adjusts the writing thickness of the pen tip according to the size of the strain force signal.
  • the power transmission shaft includes a first section and a second section, the swinging member includes opposite first and second sides, and the swinging portion of the swinging member is connected between the first and second sides ;
  • the first section of the power transmission shaft is connected with the connecting end of the pen tip, the swing piece is arranged on the second section of the power transmission shaft, and the first side outer wall of the swing piece is connected with the second section of the power transmission shaft, and the second side of the swing piece is connected to the second section of the power transmission shaft.
  • the second side of the swinging member By fixedly connecting the second section of the power transmission shaft with the outer wall of the first side of the swinging member, the second side of the swinging member is fixedly connected inside the pen holder, so that the movement of the power transmission shaft drives the first side of the swinging member to move, and the swinging member If the second side of the part is fixed, the swing part of the swing part produces swing deformation, and the strain gauge detects the strain force generated by the deformation of the swing part and transmits it to the second circuit board in the form of a signal.
  • Embodiments of the present application further provide an electronic device assembly, including an electronic device and the above-mentioned touch pen.
  • the electronic device provided by the embodiments of the present application has a touch screen, and the touch screen of the electronic device is operated by a stylus pen to provide input to the electronic device, and the electronic device performs an operation in response to the input based on the input of the stylus pen.
  • the stylus increases the distance between the second electrode and the first electrode by arranging the first electrode in the pen tip and the second electrode in the pen barrel, which can reduce the coupling between the second electrode and the first electrode. This improves the detection accuracy of the position and tilt angle of the stylus by the electronic device, thereby improving the operation accuracy of the stylus, improving the usability of the stylus, and improving the interaction performance between the stylus and the electronic device.
  • the electronic device assembly further includes: a wireless keyboard, and the wireless keyboard has a receiving portion for receiving a stylus.
  • the receiving portion is a cavity with at least one end open.
  • FIG. 1 is a schematic diagram of a scenario to which an embodiment of the present application is applicable
  • FIG. 2A is a schematic structural diagram of a touch pen provided by an embodiment of the present application.
  • FIG. 2B is a schematic diagram of a partially disassembled structure of a touch pen provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of interaction between a touch pen and an electronic device according to an embodiment of the present application
  • FIG. 4 is a schematic diagram of the assembly of a touch pen and a wireless keyboard according to an embodiment of the present application
  • 5A is a schematic diagram of a stylus provided in an embodiment of the application being accommodated in a storage portion of a wireless keyboard;
  • 5B is a schematic side view of the stylus provided in an embodiment of the present application when the stylus is stored in the storage portion of the wireless keyboard;
  • FIG. 6 is a schematic diagram of a hardware structure of a touch pen according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a hardware structure of an electronic device provided by 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 exploded view of a stylus according to Embodiment 1 of the present application.
  • FIG. 10 is a cross-sectional view of the stylus in FIG. 9;
  • FIG. 11 is a partial exploded view of another stylus provided in Embodiment 2 of the present application.
  • FIG. 12 is a cross-sectional view of the stylus in FIG. 11;
  • FIG. 13 is a partial exploded view of a third stylus provided in Embodiment 3 of the present application.
  • FIG. 14 is a cross-sectional view of the stylus in FIG. 13;
  • FIG. 15 is a partial exploded view of the fourth stylus provided in Embodiment 4 of the present application.
  • FIG. 16 is a partial structural diagram of a fifth stylus according to Embodiment 4 of the present application.
  • FIG. 1 is a schematic diagram of a scenario to which an embodiment of the present application is applicable.
  • the scene includes a stylus 100 , an electronic device 200 and a wireless keyboard 300 .
  • the electronic device 200 is a tablet computer as an example for description.
  • the stylus 100 and the wireless keyboard 300 may provide input to the electronic device 200 , and the electronic device 200 performs operations in response to the input based on the input of the stylus 100 or the wireless keyboard 300 .
  • a touch area can be set on the wireless keyboard 300 , the touch pen 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 operations in response to the input based on the input of the touch pen 100 .
  • 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 may be interconnected through a communication network to realize wireless Interaction of signals.
  • the communication network can be, but is not limited to, a WI-FI hotspot network, a WI-FI peer-to-peer (P2P) network, a Bluetooth network, a zigbee network, or a near field communication (NFC) network, etc. Communications network.
  • the stylus 100 can be, but is not limited to, an inductive pen and a capacitive pen.
  • the electronic device 200 has a touch screen 201 .
  • an electromagnetic induction board needs to be integrated on the touch screen 201 of the electronic device 200 that interacts with the touch pen 100 .
  • 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, with the movement of the inductive pen, the inductive pen can store electrical 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 coils on the electromagnetic induction board based on the power from the inductive pen to calculate the position of the inductive pen on the touch screen 201 .
  • the touch screen 201 in the electronic device 200 may also be referred to as a touch screen, and the touch pen 100 may be referred to as a stylus.
  • the capacitive stylus may include: passive capacitive stylus and active capacitive stylus.
  • Passive capacitive pens can be called passive capacitive pens
  • active capacitive pens can be called active capacitive pens.
  • One or more electrodes may be provided in the active capacitive pen (eg, in the tip of the pen), and the active capacitive pen may transmit signals through the electrodes.
  • the stylus 100 is an active capacitive pen
  • an integrated electrode array is required on the touch screen 201 of the electronic device 200 that interacts with the stylus 100 .
  • the electrode array may be a capacitive electrode array.
  • the electronic device 200 can receive the signal from the active capacitive pen through the electrode array, and then, when receiving the signal, recognize the position of the active capacitive pen on the touch screen based on the change of the capacitance value on the touch screen 201, and the active capacitive pen. tilt angle of the capacitive pen.
  • FIG. 2A is a schematic structural diagram of a touch pen according to an embodiment of the present application.
  • the stylus 100 may include a tip 10, a barrel 20 and a back cover 30.
  • the inside of the pen holder 20 is a hollow structure.
  • the pen tip 10 and the back cover 30 are located at two ends of the pen holder 20 respectively.
  • the back cover 30 and the pen holder 20 can be plugged or snapped together. See the description for Figure 2B.
  • FIG. 2B is a schematic diagram of a partially disassembled structure of the touch pen according to an embodiment of the present application.
  • the stylus 100 further includes a main shaft assembly 50 , the main shaft assembly 50 is located in the pen holder 20 , and the main shaft assembly 50 is slidably arranged in the pen holder 20 .
  • the main shaft assembly 50 has an external thread 51
  • the pen tip 10 includes a writing end 11 and a connecting end 12
  • the connecting end 12 of the pen tip 10 has an internal thread (not shown) matched with the external thread 51 .
  • the connecting end 12 of the pen tip 10 When the main shaft assembly 50 is assembled into the pen barrel 20 , the connecting end 12 of the pen tip 10 extends into the pen barrel 20 and is threadedly connected with the external thread 51 of the main shaft assembly 50 .
  • the connection between the connecting end 12 of the pen tip 10 and the spindle assembly 50 may also be detachably connected by snapping or the like.
  • the connection end 12 of the pen nib 10 is detachably connected with the spindle assembly 50, so that the replacement of the nib 10 is realized.
  • the main shaft assembly 50 is provided with a pressure sensing assembly 60 , a part of the pressure sensing assembly 60 is fixedly connected with the fixed structure in the pen barrel 20 , and a part of the pressure sensing assembly 60 is connected with the main shaft assembly 50 Fixed connection.
  • the circuit board 70 can detect the pressure of the writing end 11 of the pen tip 10 according to the deformation of the pressure-sensitive component 60 , thereby The line thickness of the writing end 11 is controlled according to the pressure of the writing end 11 of the pen tip 10 .
  • the pressure detection of the pen tip 10 includes but is not limited to the above methods.
  • the pressure of the pen tip 10 can be detected by the pressure sensor.
  • the stylus 100 further includes a plurality of electrodes, and the plurality of electrodes may be, for example, a first emission electrode 41 , a ground electrode 43 and a second emission 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 may be located within the pen tip 10 and close to the writing end 11, and the circuit board 70 may be configured as a control board that can provide signals to the first emitter electrode 41 and the second emitter electrode 42, respectively.
  • the first emitter electrode 41 is used for To transmit the first signal, when the first transmitting electrode 41 is close to the touch screen 201 of the electronic device 200, a coupling capacitance can be formed between the first transmitting electrode 41 and the touch screen 201 of the electronic device 200, so that the electronic device 200 can receive first signal.
  • the second transmitting electrode 42 is used for transmitting a second signal, and the electronic device 200 can determine the tilt angle of the stylus 100 according to the received second signal.
  • the second emitter electrode 42 may be located on the inner wall of the pen holder 20 . In one example, the second emitter electrode 42 may also be located on the spindle assembly 50 .
  • the ground electrode 43 may be located between the first emitter electrode 41 and the second emitter electrode 42, or the ground electrode 43 may be located around 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 touch pen 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 tip 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 the double-tip projection method in the inclination angle detection algorithm. The positions of the first transmitting electrode 41 and the second transmitting electrode 42 in the stylus 100 are different. Therefore, when the electronic device 200 receives the first signal and the second signal from the stylus 100, two signals on the touch screen 201 The capacitance value at each location will change.
  • the electronic device 200 can obtain the inclination 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, For more detailed acquisition of the inclination angle of the stylus 100, reference may be made to the related description of the dual-tip 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 assembly 80 may include a lithium-ion battery, or the battery assembly 80 may include a nickel-chromium battery, an alkaline battery, or a nickel-metal hydride battery, or the like.
  • the battery included in the battery assembly 80 may 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 in the battery to charge.
  • the electronic device 200 can send an uplink to the stylus 100 through the electrode array integrated on the touch screen 201 Signal.
  • the stylus 100 can receive the uplink signal through the receiving electrodes, and the stylus 100 transmits the downlink signal through the transmitting electrodes (eg, 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 tip of the stylus 100 based on the capacitance value on the touch screen 201 The position of 10 on the touch screen 201 .
  • the uplink signal and the downlink signal may be square wave signals.
  • the 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 cover.
  • the first part 301 can be a keyboard cover
  • the second part 302 can be a keyboard body.
  • the first part 301 is used for placing the electronic device 200
  • the second part 302 may be provided with buttons, touch pads, 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 are rotatably connected.
  • the first part 301 and the second part 302 can be connected by a rotating shaft or a hinge, or, in some examples, the first part 301 and the second part 302 can be rotationally connected by a flexible material (such as a leather material or a cloth material) .
  • the first part 301 and the second part 302 may be integrally formed, and the connection between the first part 301 and the second part 302 is processed by thinning, so that the connection between the first part 301 and the second part 302 is 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, and the first bracket 301a and the second bracket 301b are rotatably connected to each other.
  • the first bracket 301a and the second bracket can be used 301b collectively supports the electronic device 200 (refer to FIG. 1 ).
  • the first bracket 301a provides support to the second bracket 301b
  • the second bracket 301b supports the electronic device 200 .
  • the second bracket 301b and the second part 302 are rotatably connected.
  • the wireless keyboard 300 may be provided with a storage portion 303 for storing the stylus 100 .
  • the accommodating portion 303 is a cylindrical cavity.
  • the connecting part 304 may be a rotating shaft, so a cavity may be opened in the rotating shaft to form the receiving portion 303 .
  • the receiving portion 303 may also be provided 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 a stylus provided in an embodiment of the present application being stored in a storage portion of a wireless keyboard
  • FIG. 5B is a schematic side view of the stylus pen provided by an embodiment of the present application when stored in the storage portion of the wireless keyboard.
  • the accommodating portion 303 is a circular cavity, and the inner diameter of the accommodating portion 303 is larger than the outer diameter of the stylus 100 .
  • a magnetic material may be provided on the inner wall of the receiving portion 303 , and a magnetic material may be provided in the stylus 100 .
  • the stylus 100 is adsorbed in the receiving portion 303 by the magnetic adsorption between the magnetic materials.
  • the stylus 100 and the receiving part 303 can also be fixed by means of snapping .
  • a pop-up structure may be provided in the storage portion 303 .
  • the eject mechanism can drive one end of the stylus 100 to move outward from the storage portion 303 . pop up.
  • FIG. 6 is a schematic diagram of a hardware structure of a touch pen according to an embodiment of the present application.
  • the stylus 100 may have a processor 110 .
  • Processor 110 may include storage and processing circuitry for supporting the operation of stylus 100 .
  • the storage and processing circuitry may include storage devices such as non-volatile memory (eg, flash memory or other electrically programmable read-only memory configured as solid state drives), volatile memory (eg, static or dynamic random access memory) Wait.
  • Processing circuitry in the processor 110 may 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 may be disposed on the writing end 11 of the stylus 100 (as shown in FIG. 2B ).
  • the pressure sensor 120 may also be disposed in the pen holder 20 of the stylus 100 , so that after one end of the pen tip 10 of the stylus 100 is subjected to force, the other end of the pen tip 10 moves to act on the pressure sensor 120 .
  • the processor 110 can adjust the line thickness of the pen tip 10 of the stylus 100 when writing 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 movement 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.
  • Stylus 100 may include status indicators 140 such as light emitting diodes and buttons 150 therein.
  • the status indicator 140 is used to inform the user of the status of the stylus 100 .
  • Buttons 150 which may include mechanical buttons and non-mechanical buttons, may be used to collect button press information from a user.
  • the stylus 100 may include one or more electrodes 160 (for details, please refer to the description in FIG. 2B ), one of the electrodes 160 may be located at the writing end of the stylus 100 , and one of the electrodes 160 may be Located inside the pen tip 10, reference can be made to the above related description.
  • the stylus 100 may include a sensing circuit 170 therein.
  • the sensing circuit 170 can sense capacitive coupling between the electrodes 160 and the drive lines of the capacitive touch sensor panel that interacts with the stylus 100 .
  • 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, to use an in-phase demodulation frequency components to demodulate capacitance readings, and mixers 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 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 may control the operation of the stylus 100 and the electronic device 200 with which the stylus 100 interacts 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 processor 110 may process sensor inputs, button inputs, and inputs from other devices to monitor stylus 100 movement 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 description.
  • the wireless module may 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 telephone 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 the charging of the stylus 100 and provide power for the stylus 100 .
  • the electronic device 200 in this embodiment of the present application may be referred to as a user equipment (user equipment, UE), a terminal (terminal), etc.
  • the electronic device 200 may be a tablet computer (portable android device, PAD), a personal digital processing (personal digital assistant, PDA), handheld devices, computing devices, in-vehicle devices or wearable devices with wireless communication functions, 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, and 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 city, and a wireless terminal in a smart home.
  • the form of the terminal device is not specifically limited in the embodiments of the present application.
  • FIG. 7 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application.
  • the electronic device 200 may include multiple 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 .
  • coordination engine 230 may be used to communicate and/or process data with other subsystems of electronic device 200; communicate and/or transact data with stylus 100; measure and/or obtain one or more analog or digital output of a sensor (such as a touch sensor); measuring and/or obtaining the output of one or more sensor nodes of an array of sensor nodes (such as an array of capacitive sensing nodes); receiving and locating tip and ring signals from stylus 100 ; Position the stylus 100 and the like based on the positions of the tip signal intersection area and the ring signal intersection area.
  • a sensor such as a touch sensor
  • sensor nodes such as an array of sensor nodes
  • receiving and locating tip and ring signals from stylus 100 Position the stylus 100 and the like based on the positions of the tip signal intersection area and the ring signal intersection area.
  • the coordination engine 230 of the electronic device 200 includes or is otherwise communicatively coupled to a sensor layer underlying or integral with the input surface 220 .
  • the coordination engine 230 utilizes the sensor layer to position the stylus 100 on the input surface 220 and uses the techniques described herein to estimate the angular position of the stylus 100 relative to the plane of the input surface 220 .
  • input surface 220 may be referred to as 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 may be separate from other layers of the electronic device, or the sensor layer may be disposed directly on another layer, such as but not limited to: display stack layers, force sensor layers, digitizer layers, polarizer layers, battery layers , structural or decorative shell layers, etc.
  • the sensor layer can operate in various modes. If operating in mutual capacitance mode, the column and row traces form a single capacitive sensing node at each overlapping point (eg, "vertical" mutual capacitance). If operating in self-capacitance mode, the column and row traces form two (vertically aligned) capacitive sensing nodes at each overlapping point. In another embodiment, if operating in mutual capacitance mode, adjacent column traces and/or adjacent row traces may each form a single capacitive sensing node (eg, "horizontal" mutual capacitance).
  • the sensor layer may detect the presence of the tip 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) presented 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 cause the electronic device 200 to recognize 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 simultaneously receive input from more than one stylus.
  • the coordination engine 230 may be configured to transmit to the processor 210 the position and/or angular position of each of a number of styluses detected by the coordination engine 230 .
  • the coordination engine 230 may also transmit information to the processor 210 regarding the relative positions and/or relative angular positions of the plurality of styluses 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 Identity” information.
  • Reconciliation engine 230 may forward user identity information (if detected and/or recoverable) to processor 210 . If the user identification 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 user identification 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 particular user, allowing or denying access to particular functions of the electronic device, and the like. The processor 210 may use the user identity information to simultaneously receive input from more than one user.
  • 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 identify settings or preferences of the user or stylus 100 .
  • 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.
  • Electronic device 200 can utilize the stylus setting information (or the absence of such information) in any suitable manner, including but not limited to: applying settings to the electronic device, applying settings to programs running on the electronic device, changing The line thickness, color, 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 electronic device 200, communicating and/or transacting data with stylus 100, communicating and/or transacting data over a wireless interface, over wired
  • the interface communicates and/or trades data, facilitates the exchange of power through a wireless (eg, inductive, resonant, etc.) or wired interface, receives the position and angular position of one or more styluses, and the like.
  • the processor 210 may be implemented as any electronic device capable of processing, receiving or transmitting data or instructions.
  • a processor may be a microprocessor, a central processing unit, an application specific integrated circuit, a field programmable gate array, a digital signal processor, an analog circuit, a digital circuit, or a combination of these devices.
  • Processors can be single-threaded or multi-threaded.
  • the processor can be a single-core or multi-core processor.
  • the processor 210 may be configured to access memory in which instructions are stored.
  • 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 circuits, volatile or nonvolatile 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 haptic feedback devices.
  • the memory may also store electronic data usable 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 and control signals, or data, data structures, or databases for various modules, and detection tip signals and/or Or ring signal related files or configurations, etc.
  • the memory can be configured as any type of memory.
  • the 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.
  • Electronic device 200 also includes power subsystem 240 .
  • Power subsystem 240 may include a battery or other power source. Power subsystem 240 may be configured to provide power to electronic device 200 .
  • Power subsystem 240 may also be coupled to 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 configured to provide power to an external load. For example, in some embodiments, power connector 250 may be used to recharge a battery within power subsystem 240 . In another embodiment, power connector 250 may be used to transfer power stored (or available to) 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 low energy Bluetooth 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 wireless interfaces, Bluetooth interfaces, near field communication interfaces, magnetic interfaces, universal 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 use display 270 to present information to a user. In many cases, processor 210 uses display 270 to present an interface with which a user can interact. In many cases, 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 according to 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 processor 310, the memory 320, the charging interface 330, the charging management module 340, the battery 360, the wireless communication module 370, the touch panel 380, the keyboard 390, etc. can all be arranged on the keyboard body of the wireless keyboard 300 (ie, as shown in FIG. 1 ). shown on the second portion 302).
  • the above-mentioned wireless charging coil 350 may be disposed in the connecting portion 304 (as shown in FIG. 4 ) for movably connecting the keyboard body and the bracket. It can be understood that the structure illustrated in this embodiment does not constitute a specific limitation on the wireless keyboard 300 . In other embodiments, the wireless keyboard 300 may include more or fewer components than shown, or some components may be combined, or some components may be split, or a different arrangement of components.
  • the illustrated components may be implemented in hardware, software, or a combination of software and hardware.
  • the memory 320 may be used for storing program codes, such as program codes for wirelessly charging the stylus 100, and the like.
  • the memory 320 may also store a Bluetooth address for uniquely identifying the wireless keyboard 300 .
  • the memory 320 may also store connection data of the electronic device that has been successfully paired with the wireless keyboard 300 before.
  • the connection data may be the Bluetooth address of the electronic device that has been successfully paired with the wireless keyboard 300 .
  • the wireless keyboard 300 can be automatically paired with the electronic device without having to configure the connection therewith, such as performing legality verification.
  • the above Bluetooth address may be a media access control (media access control, MAC) address.
  • the processor 310 may be configured to execute the above-mentioned application code, and invoke relevant modules to implement 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 into one or more processors 310 .
  • the processor 310 may specifically 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 perform the functions of the processor 310 described in the embodiments of the present application.
  • the processor of the wireless keyboard 300 may be a microprocessor.
  • the wireless communication module 370 may be used to support the communication between the wireless keyboard 300 and other electronic devices, including Bluetooth (bluetooth, BT), global navigation satellite system (GNSS), wireless local area networks (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 bluetooth, BT
  • GNSS global navigation satellite system
  • WLAN wireless local area networks
  • FM wireless fidelity
  • 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 be paired with the Bluetooth chips of other electronic devices through the Bluetooth chip and establish a wireless connection, 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 sent from the processor 310, perform frequency modulation on it, amplify it, and convert it into electromagnetic waves for radiation through the antenna.
  • the wireless keyboard 300 may support wired charging.
  • the charging management module 340 may receive the charging input of the wired charger through the charging interface 330 .
  • the wireless keyboard 300 may support forward wireless charging.
  • the charging management module 340 may receive wireless charging input through the wireless charging coil 350 of the wireless keyboard 300.
  • the charging management module 340 is connected with 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 induce an alternating electromagnetic field emitted by the wireless charging coil 350 of the wireless charger to generate an alternating electric signal.
  • the alternating electrical signal generated by the wireless charging coil 350 is transmitted to the charging management module 340 through the matching circuit, so as to charge the battery 360 wirelessly.
  • 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, and supplies power to the processor 310, the memory 320, the external memory, the wireless communication module 370, and the like.
  • the charging management module 340 can also be used to monitor the battery capacity of the battery 360, the number of battery cycles, the battery health status (leakage, impedance) and other parameters.
  • the charging management module 340 may also be provided in the processor 310 .
  • the wireless keyboard 300 may 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 coils of other mobile terminals sense the alternating electromagnetic field and can perform wireless charging. That is, the wireless keyboard 300 can also wirelessly charge other mobile terminals.
  • the wireless charging coil 350 may be disposed in the receiving portion 303 of the wireless keyboard 300 , and the wireless charging coil is disposed in the pen holder 20 of the stylus 100 . When the stylus 100 is placed in the receiving portion 303 , the 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 as an example that the matching circuit can be integrated in the charging management module 340 .
  • 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 (eg, a wired charger of the wireless keyboard 300 ).
  • a touch sensor is integrated into the above-mentioned touch panel 380 .
  • the notebook computer can receive user control commands on the notebook computer through the touchpad 380 and the keyboard 390 .
  • the structures illustrated in the embodiments of the present application do not constitute a specific limitation on the wireless keyboard 300 . It may have more or fewer components than those shown in Figure 8, may combine two or more components, or may have a different configuration of components.
  • the housing 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 receiving cavity, and is used for wirelessly charging the stylus 100 after the stylus 100 is stored in the receiving cavity.
  • the outer surface of the wireless keyboard 300 may also include buttons, indicator lights (which can indicate states such as battery level, incoming/outgoing calls, pairing mode, etc.), and a display screen (which can prompt the user for relevant information) and other components.
  • the key may be a physical key or a touch key (used in conjunction with a touch sensor), etc., for triggering operations such as power-on, power-off, charging start, and charging stop.
  • a coupling phenomenon is likely to occur between the first emitting electrode 41 and the second emitting electrode 42, and the electromagnetic fields emitted by the two interfere with each other, which reduces the influence of the electronic device 200 on the position and inclination of the stylus 100. measurement accuracy.
  • the electronic device 200 may not be able to accurately locate the position of the stylus 100 on the touch screen 201, which may cause the stylus
  • the operation of the stylus 100 deviates, for example, the application icon clicked by the stylus 100 is not the user's target application icon, or the line drawn by the stylus 100 is not the user's target line. This will affect the accuracy of the stylus 100 and further affect the performance of the stylus 100 .
  • an embodiment of the present application provides a stylus and an electronic device assembly.
  • the stylus is provided with a first electrode and a second electrode.
  • On the inner wall, or the second electrode is arranged on the fixing member in the pen holder, so that there is sufficient distance between the first electrode and the second electrode, so as to avoid the coupling phenomenon between the first electrode and the second electrode, and improve the electronic equipment.
  • the detection accuracy of the position and tilt of the stylus improves the performance of the stylus.
  • FIG. 9 is a partial exploded view of a stylus according to an embodiment of the present application
  • FIG. 10 is a cross-sectional view of the stylus in FIG. 9 .
  • the stylus 400 is provided with a first electrode 44 , a second electrode 45 , a first circuit board 71 and a second circuit board 72 .
  • the first electrode 44 may be a transmitting electrode.
  • the first electrode 44 is used to transmit a first signal to the electronic device 200 , and the electronic device 200 determines, according to the first signal transmitted by the first electrode 44 , that the touch pen 400 is in touch position on the screen 201.
  • the first electrode 44 is the emitter electrode, the first electrode 44 is the above-mentioned first emitter electrode 41 .
  • the second electrode 45 can also be a transmitting electrode.
  • the second electrode 45 is used to transmit a second signal to the electronic device, and the electronic device determines that the stylus 400 is relative to the touch screen 201 according to the second signal transmitted by the second electrode 45 . angle of inclination.
  • the second electrode 45 is the emitter electrode, the second electrode 45 is the above-mentioned second emitter electrode 42 .
  • the first electrode 44 is connected to the first circuit board 71, and the first circuit board 71 is electrically connected to the second circuit board 72, so as to control the first electrode 44 to transmit the first signal to the electronic device 200 through the second circuit board 72;
  • the second electrode 45 is electrically connected to the second circuit board 72 to control the second electrode 45 to transmit a second signal to the electronic device 200 through the second circuit board 72 .
  • the first circuit board 71 may be a control board, for example, a controller is integrated on the first circuit board 71 ; the second circuit board 72 may be a main board.
  • the second circuit board 72 transmits signals to the first circuit board 71 , and controls the first electrodes 44 and the second electrodes 45 to transmit signals to the electronic device 200 through the first circuit board 71 .
  • the second circuit board 72 may be connected to the first circuit board 71 through flexible wires.
  • the flexible wire may be a flexible printed circuit (FPC for short), a flexible cable (cable) or a flexible power supply wire (PIN).
  • the first electrode 44 is electrically connected to the second circuit board 72 through the first circuit board 71 .
  • the first circuit board 71 may be directly connected to the first electrode 44; or, the first circuit board 71 may be connected to the first electrode 44 through the conductive member 21, that is, the conductive member 21 is connected to the first electrode 44 and the first circuit board 420. between.
  • the conductive member 21 may be a printed circuit board (Printed circuit boards, PCB for short) or a metal plate.
  • the second electrode 45 can be directly electrically connected to the second circuit board 72 through the above-mentioned flexible wire; or, the second electrode 45 can be electrically connected to the first circuit board 71 through the flexible wire, and is electrically connected to the second circuit board through the first circuit board 71 The board 72 is electrically connected.
  • the first signal transmitted by the first electrode 44 to the electronic device 200 is used to measure the position of the tip 10 of the stylus 400 on the touch screen 201 . Therefore, the first electrode 44 can be arranged in the pen tip 10, so that when the user operates the stylus 400 to interact with the electronic device 200, the pen tip 10 is closer to the touch screen 201 of the electronic device 200, and the first electrode 44 emits the first The transmission distance of the signal is short, and the position of the pen tip 10 detected by the electronic device 200 is relatively accurate.
  • the second signal transmitted by the second electrode 45 to the electronic device 200 is used to measure the inclination angle of the pen holder 20 of the stylus 400 relative to the touch screen 201 .
  • the second electrode 45 is usually disposed in the pen tip 10 together with the first electrode 44 .
  • the spacing between the second electrode 45 and the first electrode 44 is usually very close. Therefore, a coupling phenomenon is likely to occur between the second electrode 45 and the first electrode 44, and the second signal emitted by the second electrode 45 and the first signal emitted by the first electrode 44 may interfere with each other, thereby reducing the pairing of the electronic device 200. Detection accuracy of the position and tilt angle of the stylus 100 .
  • the second electrode 45 is arranged on the inner wall of the pen holder 20, or the second electrode 45 is arranged on a fixing member in the pen holder 20 (refer to the connection sleeve 22 below).
  • the second electrode 45 may be provided on the inner wall of the pen barrel 20 . In this way, the distance between the second electrode 45 and the first electrode 44 is relatively far, and the electromagnetic interference generated between the first signal emitted by the first electrode 44 and the second signal emitted by the second electrode 45 is weak, or the first The electrode 44 and the second electrode 45 do not interfere with each other. Therefore, the measurement accuracy of the position and the tilt angle of the stylus 100 by the electronic device 200 can be improved.
  • the distance between the second electrode 45 and the first electrode 44 is increased, and the first electrode 44 and the second electrode are lowered.
  • a coupling phenomenon occurs between the 45 , which improves the accuracy of the signals emitted by the first electrode 44 and the second electrode 45 , thereby improving the operation accuracy of the stylus 400 and improving the usability of the stylus 400 .
  • one end of the pen tip 10 of the stylus 400 is the writing end 11
  • the writing end 11 is the end of the pen tip 10 away from the pen barrel 20 .
  • the writing end 11 of the pen tip 10 faces the touch screen 201 of the electronic device 200
  • the stylus 400 is realized through the contact between the writing end 11 of the pen tip 10 and the touch screen 201 . Operations on the touch screen 201 .
  • the other end of the pen tip 10 opposite to the writing end 11 is its connection end 12 , and the pen tip 10 is connected with the external thread 51 (see FIG. 2B ) of the spindle assembly 50 in the pen barrel 20 through the connection end 12 .
  • the pen tip 10 and the pen barrel 20 can be connected by magnetic adsorption.
  • the pen tip 10 is provided with a magnetic member
  • the pen holder 20 is provided with a magnetic member
  • the magnetic member in the pen tip 10 and the magnetic member in the pen holder 20 have magnetic attraction; wherein, when the force of the pen tip 10 changes, the relationship between the pen tip 10 and the pen holder 20 is magnetically attractive.
  • the magnetic attraction force changes between the two, so as to realize the movement of the pen tip 10 relative to the pen barrel 20 .
  • the first electrode 44 may be disposed on the writing end 11 of the pen tip 10 .
  • the writing end 11 of the stylus 400 faces the touch screen 201 and contacts the touch screen 201, and the distance between the first electrode 44 on the writing end 11 and the touch screen 201 is relatively small , the intensity of the first signal transmitted by the first electrode 44 to the electronic device 200 is higher, and the position of the pen tip 10 of the stylus 400 detected by the electronic device 200 is more accurate.
  • the second electrode 45 by arranging the second electrode 45 on the inner wall of the pen holder 20, the distance between the second electrode 45 and the first electrode 44 is increased, and the distance between the second electrode 45 and the first electrode 44 is reduced. A coupling phenomenon occurs between them, which improves the measurement accuracy of the position and the tilt angle of the stylus 100 .
  • the touch pen 400 interacts with the electronic device 200, if the distance between the second electrode 45 and the touch screen 201 is too far, the intensity of the second signal received by the electronic device 200 and emitted by the second electrode 45 corresponds to will be weakened, which may reduce the detection accuracy of the tilt angle of the stylus 100 by the electronic device 200 .
  • the second electrode 45 may be disposed in the position of the pen barrel 20 close to the pen tip 10 .
  • the second electrode 45 is located in the pen holder 20, which ensures a sufficient distance between the second electrode 45 and the first electrode 44, which can reduce the coupling phenomenon between the two; on the other hand, the second electrode 45 The distance from the pen tip 10 is appropriate.
  • the stylus 400 interacts with the electronic device 200 , it can ensure that the second signal emitted by the second electrode 45 received by the electronic device 200 has sufficient strength, thereby ensuring that the electronic device 200 can respond to the touch.
  • the measurement accuracy of the tilt angle of the pen 100 is appropriate.
  • the first A circuit board 71 and a second circuit board 72 may be arranged along the axial direction of the stylus 400 .
  • first circuit board 71 directly connected to the first electrode 44 in the writing end 11 of the pen tip 10 as an example, one end of the first circuit board 71 is connected to the first electrode 44, and the other end of the first circuit board 71 is along the The axial direction of the stylus 400 protrudes toward the end of the pen barrel 20 away from the pen tip 10 .
  • first circuit board 71 Taking the connection of the first circuit board 71 to the first electrode 44 through a conductive member 21 such as a PCB board or a metal plate as an example, one end of the conductive member 21 is connected to the first electrode 44 , and the conductive member 21 extends along the axial direction of the stylus 400 .
  • One end of the first circuit board 71 is connected to the other end of the conductive member 21 , and the other end of the first circuit board 71 protrudes along the axial direction of the stylus 400 toward the end of the pen barrel 20 away from the pen tip 10 .
  • the second circuit boards 72 may be arranged at intervals on the side of the first circuit board 71 away from the first electrodes 44 , the second circuit boards 72 may be arranged on the axis of the pen holder 20 , or the second circuit boards 72 may be arranged away from the axis of the pen holder 20 .
  • the stylus 400 is usually provided with receiving electrodes (not shown), and the receiving electrodes are used to receive the signals transmitted by the electronic device 200 to the stylus 400 , and then control the stylus through the second circuit board 72 . 400 executes the command sent by the electronic device 200 .
  • the receiving electrodes are electrically connected to the second circuit board 72 through flexible wires; or, the receiving electrodes are electrically connected to the first circuit board 71 through flexible wires, and then electrically connected to the second circuit board 72 through the first circuit board 71 .
  • the receiving electrodes may be provided separately, that is, in addition to the first electrodes 44 and the second electrodes 45, the stylus 400 is also provided with receiving electrodes.
  • the receiving electrode may be integrally provided with one of the first electrode 44 or the second electrode 45 as the transmitting electrode.
  • the receiving electrode may be an integral structure with the first electrode 44, or the receiving electrode and the second electrode 45 may be an integral structure.
  • the receiving electrodes are provided separately, and the receiving electrodes may be provided between the first electrodes 44 and the second electrodes 45 , or the receiving electrodes may be provided on the side of the second electrodes 45 away from the first electrodes 44 .
  • the receiving electrode may be integrated on the first electrode 44 .
  • the receiving electrode may be integrally provided on the second electrode 45 .
  • the first electrode 44 is arranged on the writing end 11 of the pen tip 10, and the space of the writing end 11 of the pen tip 10 is limited, it is inconvenient to integrate the receiving electrode and the first electrode. Therefore, the receiving electrode can be integrated with the second electrode 45. set up.
  • the second electrode 45 may include a signal transmitting module (not shown in the figure) and a signal receiving module (not shown in the figure).
  • the signal transmitting module is used to transmit a second signal to the electronic device 200, and the electronic device 200 determines the tilt angle of the stylus 400 according to the second signal transmitted by the signal transmitting module of the second electrode 45; the signal received by the second electrode 45
  • the module is used to receive the signal transmitted by the electronic device 200 to the stylus 400 , the second circuit board 72 of the stylus 400 receives the signal through the signal receiving module of the second electrode 45 , and controls the stylus 400 to execute the sending of the electronic device 200 .
  • the command is used to receive the signal transmitted by the electronic device 200 to the stylus 400 , the second circuit board 72 of the stylus 400 receives the signal through the signal receiving module of the second electrode 45 , and controls the stylus 400 to execute the sending of the electronic device 200 . The command.
  • a ground electrode 43 may be further provided between the first electrode 44 and the second electrode 45 .
  • the ground electrode 43 It is electrically connected with the second circuit board 72 .
  • the ground electrode 43 reduces the signal interference between the first electrode 44 and the second electrode 45 and reduces or avoids the coupling phenomenon between the first electrode 44 and the second electrode 45 .
  • the ground electrode 43 can be directly electrically connected to the second circuit board 72 through a flexible wire; alternatively, the ground electrode 43 can be connected to the first circuit board 71 through a flexible wire, and is electrically connected to the second circuit board 72 through the first circuit board 71 .
  • the ground electrode 43 can be sleeved on the first circuit
  • the board 71 is close to the outside of the first electrode 44 ; for the case where the conductive member 21 is connected between the first circuit board 71 and the first electrode 44 , the ground electrode 43 can be sleeved outside the conductive member 21 .
  • the conductive member 21 can be a multilayer circuit board, so that the conductive member 21 can provide two The mutually independent transmission paths electrically connect the first circuit board 71 to the ground electrode 43 and the first electrode 44, respectively.
  • the pen barrel 20 may include a cone section 20a and a straight section 20b along its axial direction.
  • the cone section 20a is close to the pen tip 10 , the connecting end 12 of the pen tip 10 and the cone of the pen barrel 20 .
  • the barrel section 20a is connected.
  • the tip 10 of the stylus 400 may generally be in the shape of a cone.
  • the cone section 20a of the pen barrel 20 can be matched with the bottom end of the cone-shaped pen tip 10 , and the end of the cone section 20a of the pen barrel 20 connected to the pen tip 10 smoothly transitions from the bottom end of the pen tip 10 .
  • the second electrode 45 may be disposed on the inner wall of the cone section 20 a of the pen barrel 20 . In this way, when the stylus 400 interacts with the electronic device 200, the distance between the second electrode 45 located in the cone section 20a of the pen barrel 20 and the electronic device 200 is relatively close, and the second electrode 45 received by the electronic device 200 emits The strength of the second signal is better, and the tilt angle of the stylus 100 detected by the electronic device 200 is more accurate.
  • the fixing member in the stylus 400 of this embodiment may be a connecting sleeve 22 , the connecting sleeve 22 is fixed in the pen barrel 20 , and the connecting sleeve 22 is located in the pen barrel 20 and close to the pen tip 10 one end.
  • the connecting end 12 of the pen tip 10 extends into the connecting sleeve 22 and is movably connected with the connecting sleeve 22 .
  • the connecting sleeve 22 can be fixed on the inner wall of the pen barrel 20 .
  • the connection sleeve 22 may be fixed on the inner wall of the pen barrel 20 by means of bonding, welding, locking or snapping.
  • the connecting sleeve 22 may be disposed along the axial direction of the pen barrel 20 , and at least part of the connecting sleeve 22 is located in the cone section 20 a of the pen barrel 20 .
  • the entire connecting sleeve 22 is located in the cone section 20a of the pen barrel 20; 20b.
  • the second electrode 45 can be attached to the inner wall of the pen barrel 20, for example, the second electrode 45 is attached to the inner wall of the cone section 20a of the pen barrel 20.
  • the second electrode 45 can be injected on the inner wall of the cone section 20a of the pen barrel 20 by injection molding; alternatively, the second electrode 45 can be adhered to the inner wall of the cone section 20a of the pen barrel 20; Alternatively, the second electrode 45 can also be fixed on the inner wall of the cone section 20a of the pen barrel 20 by other connection methods, which is not specifically limited in this embodiment.
  • the housing of the stylus 400 is usually made of a non-conductive material.
  • the barrel 20 of the stylus 400 is a plastic barrel 20 .
  • a flexible electrical connection can be connected between the second electrode 45 and the first circuit board 71 . 23, or connect the flexible electrical connector 23 between the second electrode 45 and the second circuit board 72, so as to realize the conduction between the second electrode 45 and the second circuit board 72 as the main board through the flexible electrical connector 23.
  • the flexible electrical connector 23 can be arranged along the inner wall of the pen barrel 20, one end of the flexible electrical connector 23 is connected to the second electrode 45 attached to the inner wall of the pen barrel 20, and the other end of the flexible electrical connector 23 extends to the first circuit board 71 or the second circuit board 72 and connected with the first circuit board 71 or the second circuit board 72 .
  • the flexible electrical connector 23 may be a flexible wire such as an FPC, a flexible cable, or a flexible power supply wire. It should be noted that the flexible electrical connectors 23 mentioned below can all be the above-mentioned flexible wires, which will not be repeated here.
  • the connecting sleeve 22 provided in the pen barrel 20 is a conductive sleeve.
  • the connection sleeve 22 can be a metal sleeve, and the second electrode 45 attached to the inner wall of the pen barrel 20 can be electrically connected to the first circuit board 71 or the second circuit board 72 through the connection sleeve 22 .
  • the second electrode 45 can be in contact with the conductive connecting sleeve 22 , and the connecting sleeve 22 is electrically connected to the first circuit board 71 or the second circuit board 72 , so as to realize the second electrode 45 and the first circuit board 71 . or the electrical connection between the second electrode 45 and the second circuit board 72 .
  • the second electrode 45 may be in direct contact or indirect contact with the connecting sleeve 22 .
  • the outer wall of the connection sleeve 22 may be provided with a conductive elastic piece 26 , for example, the conductive elastic piece 26 is provided on the outer wall of the end of the connection sleeve 22 facing the pen tip 10 .
  • the second electrode 45 is in contact with the conductive elastic sheet 26
  • the flexible electrical connector 23 is connected between the outer wall of the connection sleeve 22 and the first circuit board 71 , or the outer wall of the connection sleeve 22 and the second circuit board 72 is connected with a flexible electrical connector 23 .
  • Flexible electrical connector 23 .
  • the second electrode 45 on the inner wall of the pen holder 20 is in contact with the conductive elastic sheet 26, so as to conduct the second electrode 45 and the connecting sleeve through the conductive elastic sheet 26. twenty two.
  • the conductive elastic sheet 26 Since the conductive elastic sheet 26 has elasticity, the conductive elastic sheet 26 makes good contact with the second electrode 45 by virtue of its elastic deformation, so as to ensure the stability of the electrical connection between the second electrode 45 and the connection sleeve 22 .
  • a flexible electrical connector 23 is also connected to the outer wall of the connection sleeve 22 , and one end of the flexible electrical connector 23 is connected to the outer wall of the connection sleeve 22 .
  • the other end of the flexible electrical connector 23 is connected to the first circuit board 71 or the second circuit board 72 , so as to realize the electrical connection between the second electrode 45 and the first circuit board 71 or the second circuit board 72 .
  • FIG. 11 is a partial exploded view of another stylus according to the second embodiment of the present application
  • FIG. 12 is a cross-sectional view of the stylus in FIG. 11 .
  • the second electrode 45 may be provided on the connecting sleeve 22 .
  • the second electrode 45 may be electrically connected to the first circuit board 71 or the second circuit board 72 , or the second electrode 45 may be electrically connected to the first circuit board 71 or the second circuit board 72 through the connection sleeve 22 .
  • a receiving groove 221 may be formed on the outer wall of the connecting sleeve 22 , a raised portion 451 that matches the receiving groove 221 is formed on the second electrode 45 , and the second electrode 45 passes through the raised portion 451 It is arranged on the outer wall of the connecting sleeve 22 in cooperation with the accommodating groove 221 .
  • the second electrode 45 can be installed on the connecting sleeve 22 first, and then the connecting sleeve 22 can be fixed in the pen barrel 20 .
  • the second electrode 45 in order to facilitate the connection between the second electrode 45 and the connection sleeve 22 , can be configured as an annular structure, and the annular second electrode 45 matches the size of the connection sleeve 22 , so that the annular second electrode 45 can be directly sleeved on the outer wall of the connection sleeve 22 .
  • the second electrode 45 may also be a sheet-like structure or other structures, and the second electrode 45 is disposed in the accommodating groove 221 on the connection sleeve 22 .
  • the connecting sleeve 22 may be provided with an accommodating groove 221, and the protrusion 451 of the second electrode 45 corresponding to the accommodating groove 221 extends into the accommodating groove 221;
  • a plurality of accommodating grooves 221 may be provided on the connecting sleeve 22 at intervals along the circumferential direction thereof, and the protrusions 451 of the second electrode 45 corresponding to these accommodating grooves 221 are all snapped into the accommodating grooves 221, so that the second electrode can be improved. 45 The stability of the connection with the connecting sleeve 22.
  • the accommodating groove 221 may be an annular groove provided along the circumferential direction of the connecting sleeve 22 .
  • the accommodating groove 221 may be an annular groove provided along the circumferential direction of the connecting sleeve 22 .
  • the second electrode 45 can be set to a ring-shaped structure matching the annular receiving groove 221 , and the second electrode 45 is fully snapped into the receiving groove 221 , so that the stability of the connection between the second electrode 45 and the receiving groove 221 can be improved. sex.
  • the second electrode 45 is a sheet-like structure, and the second electrode 45 is only located at a certain position in the annular accommodating groove 221 .
  • connection sleeve 22 may be a conductive metal sleeve
  • the second electrode 45 is in conduction with the connection sleeve 22
  • a flexible electrical connector is used between the outer wall of the connection sleeve 22 and the first circuit board 71 . 23 connection, or the connection between the outer wall of the connection sleeve 22 and the second circuit board 72 through the flexible electrical connector 23, so as to realize the second electrode 45 and the first circuit board 71 or the second circuit through the conductive connection sleeve 22 Electrical connections between boards 72 .
  • connection sleeve 22 is non-conductive, eg, the connection sleeve 22 is a plastic sleeve.
  • the second electrode 45 is directly electrically connected to the first circuit board 71 or the second circuit board 72 through the flexible electrical connector 23 .
  • one end of the flexible electrical connector 23 extends into the receiving groove 221 to contact the second electrode 45 , and the other end of the flexible electrical connector 23 is connected to the first circuit board 71 or the second circuit board 72 .
  • the end of the flexible electrical connector 23 connected to the second electrode 45 may extend to the bottom of the accommodating slot 221 , that is, the flexible electrical connector 23 is connected to the side surface of the second electrode 45 facing the bottom of the accommodating slot 221 , In this way, the accommodating groove 221 can fix and limit the flexible electrical connector 23 , and can improve the stability of the connection between the second electrode 45 and the flexible electrical connector 23 .
  • the accommodating groove 221 may be a concave area opened inward on the outer wall of the connecting sleeve 22 , and the flexible electrical connector 23 may extend into the accommodating groove 221 along the outer wall of the connecting sleeve 22 and the first The two electrodes 45 are connected; alternatively, the accommodating groove 221 may be a through hole penetrating both sides of the connecting sleeve 22 , and the flexible electrical connector 23 may directly extend from the inner wall of the connecting sleeve 22 to the position where the accommodating groove 221 is located.
  • FIG. 13 is a partial exploded view of the third stylus provided in the third embodiment of the application;
  • FIG. 14 is a cross-sectional view of the stylus in FIG. 13 .
  • the second electrode 45 in addition to the form in which the accommodating groove 221 is provided on the outer wall of the connection sleeve 22 to install the second electrode 45 , the second electrode 45 can also be set in the form of being integrated on the flexible circuit board 27 , the electrical connection between the second electrode 45 and the first circuit board 71 or the second circuit board 72 is realized through the electrical connection between the flexible circuit board 27 and the first circuit board 71 or the second circuit board 72 .
  • the thickness of the flexible circuit board 27 is very thin, it is not necessary to open the accommodating groove 221 on the connection sleeve 22, but directly attach the flexible circuit board 27 integrated with the second electrode 45 to the connection sleeve. on the outer wall of the barrel 22.
  • an accommodating groove 221 can also be formed on the connecting sleeve 22 , so that the part of the flexible circuit board 27 corresponding to the accommodating groove 221 is snapped into the accommodating groove 221 to improve the stability of the connection between the flexible circuit board 27 and the connecting sleeve 22 .
  • the flexible circuit board 27 integrated with the second electrode 45 is directly connected to the first circuit board 71 or the second circuit board 72 .
  • the flexible circuit board 27 is attached to the outer wall of the connecting sleeve 22 , and pins 271 protrude from the side of the flexible circuit board 27 , for example, the flexible circuit board 27 faces the first circuit Pins 271 protrude from one side of the board 71 or the second circuit board 72 , and the pins 271 extend to connect with the first circuit board 71 or the second circuit board 72 .
  • the flexible circuit board 27 integrated with the second electrode 45 can be attached to the outer wall of the connection sleeve 22 through conductive glue, so that the flexible circuit board 27 and The connection sleeves 22 can communicate with each other.
  • the flexible circuit board 27 integrated with the second electrodes 45 is connected to the first circuit board 71 or the second circuit board 72 .
  • FIG. 15 is a partial exploded view of the fourth stylus provided in the fourth embodiment of the application
  • FIG. 16 is a partial structural diagram of the fifth stylus provided in the fourth embodiment of the application.
  • the stylus 400 is further provided with a spindle assembly 50 and a pressure sensing assembly 60 .
  • the pressure sensing assembly 60 includes a swing member 61 and a strain gauge 62
  • the spindle assembly 50 (see FIG. 2B ) at least includes a force transmission shaft 24 .
  • One end of the force transmission shaft 24 is connected to the connecting end 12 of the pen tip 10 (see FIG. 13 ), and the other end of the force transmission shaft 24 is connected to the swing member 61 , and the strain gauge 62 is attached to the end of the swing member 61 facing the second circuit board 72 .
  • the strain gauge 62 is electrically connected to the first circuit board 71 or the second circuit board 72 .
  • a gap H1 is provided at the external connection portion of the pen tip 10 and the pen barrel 20 , and the gap H1 can make the pen tip 10 move slightly relative to the pen barrel 20 .
  • the pen tip 10 of the stylus 400 contacts the touch screen 201 of the electronic device 200, the pen tip 10 is pressed, and the gap H1 can make the pen tip 10 move toward the pen barrel 20 when the force is applied.
  • the movement of the pen tip 10 drives the force transmission shaft 24 to move, and the force transmission shaft 24 drives the swinging member 61 to swing.
  • the swinging member 61 is an elastic member.
  • the elastic force generated by the swinging member 61 is transmitted to the second circuit board 72 in the form of a signal, and the second circuit board 72 adjusts the thickness of the pen tip 10 when writing according to the elastic force.
  • the strain gauge 62 can be connected to the first circuit board 71 through a flexible wire, and the strain force signal measured by the strain gauge 62 can be transmitted to the second circuit board 72 through the first circuit board 71; Connected to the second circuit board 72 , the strain force signal measured by the strain gauge 62 is directly transmitted to the second circuit board 72 .
  • one end of the force transmission shaft 24 can be connected to the connecting end 12 of the pen tip 10 , for example, the connecting end 12 of the pen tip 10 is hollow inside, and the first circuit board 71 is along the axis of the stylus 400 The ground electrode 43 is sleeved outside the first circuit board 71 , and the force transmission shaft 24 is fixedly connected to the inner wall of the connection end 12 .
  • the force transmission shaft 24 can be connected to the inner wall of the connecting end 12 of the pen tip 10 by screwing, bonding or welding.
  • the other end of the force transmission shaft 24 is connected with the swinging member 61 .
  • the swinging member 61 can be, for example, a structure similar to a "U"-shaped frame.
  • One side of the swinging member 61 in the radial direction of the pen barrel 20 is fixed on the inner wall of the pen barrel 20, and the other end of the force transmission shaft 24 and the swinging member 61 are on the pen barrel.
  • the other side in the radial direction of 20 is fixedly connected.
  • one side of the pendulum 61 in the radial direction of the pen holder 20 is fixed in the pen holder 20, and the other side is fixedly connected with the force transmission shaft 24, so it can move with the force transmission shaft 24, and the connection of the pendulum member 61 is on these two sides
  • the swinging member 61 is fixed on one side of the pen holder 20 , and can be directly connected to the inner wall of the pen holder 20 , or fixed through the fixing sleeve 25 provided in the pen holder 20 .
  • the swinging member 61 may be a metal member, and the part connecting the inner wall of the pen barrel 20 or the inner wall of the fixing sleeve 25 with the swinging member 61 is usually a metal material, for example, the corresponding part of the inner wall of the pen barrel 20 or the inner wall of the fixing sleeve 25 is covered with metal layer, the swinging member 61 is welded to the inner wall of the pen barrel 20 or the inner wall of the fixed sleeve 25 .
  • the swinging member 61 when the swinging member 61 is not swinging, there is a gap H2 between its end face facing the second circuit board 72 and the second circuit board 72 , and the gap H2 is used to reserve a swinging space for the swinging member 61 so as to allow the swinging member 61 to swing.
  • the end face of the member 61 facing the second circuit board 72 can swing within the gap H2 , so that the strain gauge 62 can detect the elastic force generated by the swinging of the swing member 61 and transmit the signal to the second circuit board 72 .
  • the gap H2 between the swinging member 61 and the second circuit board 72 may be larger than the gap H1 between the pen tip 10 and the pen barrel 20 , so that the movement of the pen tip 10 drives the swinging member 61 to swing to contact the second circuit board 72 There is still a gap between the pen tip 10 and the pen holder 20 to ensure the use performance of the stylus 100 .
  • the force transmission shaft 24 extends into the pendulum member 61 through the end face of the pen nib 10 of the pendulum member 61, and the force transmission shaft 24 is fixedly connected to the inner wall of the pendulum member 61.
  • the force shaft 24 is welded or bonded to the inner wall of the side of the rocking member 61 .
  • the assembly of the power transmission shaft 24 and the swinging member 61 is relatively complicated, and a through hole needs to be opened on the end face of the swinging member 61 facing the pen tip 10, and the power transmission shaft 24 extends into the swinging member 61 through the through hole, and It is connected with the inner side wall of the rocking member 61 .
  • the side where the swinging member 61 is fixedly connected with the pen barrel 20 is bent, and then the swinging member 61 is connected to the inner wall of the pen barrel 20 or the fixed sleeve by welding. 25 inner wall.
  • the inner wall of the pen barrel 20 or the inner wall of the fixed sleeve 25 is covered with a metal layer at the part connected to the swinging member 61, it needs to be positioned in advance, so the welding precision is high.
  • one end of the force transmission shaft 24 is connected to the connecting end 12 of the pen tip 10 , and the swinging member 61 is provided on the other end of the force transmission shaft 24 and is connected to the force transmission shaft 24 .
  • the swinging member 61 can be connected to the fixed sleeve 25 first, and then The power transmission shaft 24 and the swinging member 61 are connected. In this way, the assembly process of the force transmission shaft 24 and the swinging member 61 can be simplified, and the assembly efficiency of the pressure sensing assembly 60 can be improved.
  • the swinging member 61 can still have a “U”-shaped frame structure as a whole.
  • the swinging member 61 includes opposite first sides 611 and second sides 612 in the radial direction of the pen barrel 20 .
  • the first side 611 of the swinging member 61 The outer wall of the oscillating member 61 is fixedly connected with the force transmission shaft 24 , and the second side 612 of the swing member 61 is fixedly connected in the pen barrel 20 .
  • the swinging portion 613 of the swinging member 61 is connected between the first side 611 and the second side 612 of the swinging member 61.
  • the swinging portion 613 may include an end face of the swinging member 61 facing the pen tip 10 and the swinging member 61 facing the first side.
  • the strain gauge 62 is attached to the outer surface of the swing portion 613 on the side facing the second circuit board 72 .
  • the swinging parts 613 on both sides of the swinging member 61 can be bent in advance.
  • the end of the swinging part 613 that needs to be fixed in the pen barrel 20 is bent to form the second side 612 of the swinging member 61, and the second side 612 of the swinging member 61 is first fixedly connected to the fixing sleeve 25, and then the second side 612 of the swinging member 61 is fixed and connected.
  • the outer wall of the first side 611 of the rocking member 61 is connected to the force transmission shaft 24 . In this way, the assembly process can be simplified and the assembly efficiency can be improved.
  • the force transmission shaft 24 includes a first section 241 and a second section 242, and the first section 241 of the force transmission shaft 24 is connected to the connection end 12 of the pen tip 10, for example, The first section 241 of the force transmission shaft 24 is connected to the inner wall of the connecting end 12 of the pen tip 10; On the second section 242 , the second section 242 of the force transmission shaft 24 is connected to the outer wall of the first side 611 of the swinging member 61 .
  • the swinging member 61 is usually located in the straight section 20b of the pen barrel 20 , and in order to ensure that the swinging deformation of the swinging member 61 can transmit sufficient elastic force, the swinging portion 613 of the swinging member 61 should occupy as much of the straight section of the pen barrel 20 as possible.
  • the force transmission shaft 24 further includes a blocking wall 243 connected between the first section 241 and the second section 242, the first end of the blocking wall 243 is connected with the first section 241, and the blocking wall 243 The second end is connected to the second segment 242 , and the second end of the blocking wall 243 is closer to the inner wall of the pen barrel 20 than the first end, and the second side 612 of the swinging member 61 can be close to the blocking wall 243 .
  • the blocking wall 243 is connected between the first section 241 and the second section 242 of the power transmitting shaft 24, the first end of the blocking wall 243 is connected with the first section 241, and the blocking wall The second end of 243 is connected to the second segment 242 .
  • the second section 242 of the force transmission shaft 24 can drive the first side 611 of the oscillating member 61 to move, the oscillating portion 613 of the oscillating member 61 is inclined, the strain gauge 62 is deformed, and the deformation is transmitted to the first circuit board 71 or the third Two circuit boards 72 .
  • the blocking wall 243 of the force transmission shaft 24 may extend along the radial direction of the pen barrel 20 , and the blocking wall 243 of the force transmission shaft 24 is perpendicular to the first section 241 and the second section 242 of the force transmission shaft 24 .

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Abstract

本申请实施例提供一种触控笔及电子设备组件，通过触控笔包括笔杆和位于笔杆一端且可拆卸的笔尖，还包括第一电极、第二电极、第一电路板和第二电路板；第一电极设置在笔尖内，第一电极与第一电路板连接，且第一电路板与第二电路板电连接；第二电极设置在笔杆的内壁上，或者第二电极设在笔杆内的固定件上，第二电极与第二电路板或第一电路板电连接，增大了第一电极和第二电极之间的距离，降低了第一电极和第二电极之间的耦合。本申请实施例的触控笔，解决了触控笔内的两个电极之间容易出现耦合而降低触控笔书写的准确度问题。

Description

触控笔及电子设备组件
本申请要求申请日为2021年03月15日、申请号为202110293428.X、申请名称为“一种手写笔及其使用方法”和申请日为2021年04月16日、申请号为202110414564.X、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
本申请实施例涉及终端技术领域，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)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，对于触控笔的性能要求也越来越高，尤其对于触控笔的应用体验越来越重要。
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。目前，电容式触控笔内通常设置有发射电极和接收电极，发射电极用于向触控屏发射信号，接收电极用于接收触控屏发出的信号。其中，触控笔内通常设置有两个发射电极，两个发射电极均设置在触控笔的笔尖内；其中一个发射电极设置在笔尖的尖端部位，该发射电极用于检测笔尖在触控屏上的位置，另一发射电极设置于笔尖内的其他部位，用于监测触控笔相对于触控屏的倾斜程度。
然而，触控笔内的两个电极(例如两个发射电极)之间容易出现耦合现象，这会影响触控笔书写的准确度，进而影响触控笔的使用性能。
发明内容
本申请实施例提供了一种触控笔及电子设备组件，提高了触控笔的操作精度，提升了触控笔的使用性能。
本申请实施例提供一种触控笔，包括笔杆和位于笔杆一端且可拆卸的笔尖，触控笔还包括第一电极、第二电极、第一电路板和第二电路板；第一电极设置在笔尖内，第一电极与第一电路板连接，且第一电路板与第二电路板电连接；第二电极设置在笔杆的内壁上，或者第二电极设在笔杆内的固定件上，第二电极与第二电路板或第一电路板电连接，第二电极用于发射测量笔杆相对于触控屏的倾斜角度的第二信号。
本申请实施例提供的触控笔，通过将第一电极设置在笔尖内，将第二电极设置在笔杆的内壁或笔杆内的固定件上，增大了第二电极和第一电极之间的距离，可降低第二电极和第一电极之间产生耦合现象，提高电子设备对触控笔的位置和倾斜角度的检测精度，从而提高触控笔的操作精度，提升触控笔的使用性能。
在一种可能的实施方式中，第二电极设置在笔杆内靠近笔尖的部位。
通过将第二电极设置在笔杆内靠近笔尖的部位，一方面，增大了第二电极和第一电极之间的距离，可降低或避免第二电极和第一电极之间产生耦合现象，提高电子设备对触控笔的位置及倾斜角度的检测精度；另一方面，第二电极与触控屏的距离较近，第二电极向电子设备发送的信号的强度较好，可保证电子设备对触控笔的倾斜角度的测量精度。
在一种可能的实施方式中，固定件为连接套筒，连接套筒固定在笔杆中。
在一种可能的实施方式中，笔杆包括锥筒段和直筒段，锥筒段位于笔尖和直筒段之间，第二电极设置在锥筒段的内壁上，且至少部分连接套筒位于锥筒段内。
在一种可能的实施方式中，连接套筒为导电套筒，第二电极通过连接套筒与第一电路板或第二电路板电连接。
在一种可能的实施方式中，连接套筒的外壁上设有导电弹片，第二电极与导电弹片接触，连接套筒的外壁和第一电路板之间连接有柔性电连接件，或者，连接套筒的外壁和第二电路板之间连接有柔性电连接件。
通过在可导电的连接套筒的外壁上设置导电弹片，笔杆内壁上的第二电极与导电弹片接触，且连接套筒的外壁通过柔性电连接件与第一电路板和第二电路板连接，这样第二电极可通过套筒与第二电路板电连接。
在一种可能的实施方式中，第二电极设置在连接套筒的外壁上。
在一种可能的实施方式中，连接套筒的外壁上开设有容纳槽，第二电极上设有与容纳槽配合的凸起部，第二电极通过凸起部与容纳槽配合设置于连接套筒的外壁上。
在一种可能的实施方式中，连接套筒为导电套筒，连接套筒的外壁和第一电路板之间连接有柔性电连接件，或者，连接套筒的外壁和第二电路板之间连接有柔性电连接件。
在一种可能的实施方式中，第二电极上连接有柔性电连接件，柔性电连接件的一端伸入容纳槽内与第二电极接触，柔性电连接件的另一端与第一电路板或第二电路板连接。
通过在连接套筒的外壁上开设容纳槽，第二电极设置有凸起部与容纳槽配合，这样避免第二电极在连接套筒的外壁上转动，实现了对第二电极在连接套筒上限位的作用；其中，对于可导电的连接套筒，通过在连接套筒的外壁上连接柔性电连接件，柔性电连接件与第一电路板或第二电路板连接，实现第二电极与第二电路板的电连接；对于不导电的连接套筒，通过使柔性电连接件的一端伸入容纳槽内与第二电极连接，柔性电连接件的另一端与第一电路板或第二电路板连接，实现第二电极与第二电路板的电连接。
在一种可能的实施方式中，第二电极集成在柔性电路板上，柔性电路板贴设在连接套筒的外壁上，且柔性电路板上伸出有引脚，引脚连接至第一电路板或第二电路板。
通过将第二电极集成在柔性电路板上，将柔性电路板贴设在连接套筒外壁上，柔性电路板上伸出的引脚与第一电路板或第二电路板连接，可实现第二电极与第二电路板的电连接。
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。
在一种可能的实施方式中，笔尖的一端为书写端，另一端为连接端，连接端伸入笔杆 内；第一电极位于书写端。
通过将第一电极设置在笔尖的书写端，可提高电子设备对触控笔的位置的检测精度。
在一种可能的实施方式中，触控笔还包括主轴组件和压感组件，压感组件包括摆动件和应变片，主轴组件至少包括传力轴；
传力轴的一端与笔尖的连接端连接，传力轴的另一端与摆动件的外壁连接，应变片贴设在摆动件朝向第二电路板的一端，应变片与第一电路板或第二电路板电连接。
通过设置传力轴和压感组件，传力轴的一端与笔尖连接，传力轴的另一端与压感组件的摆动件连接，笔尖受力朝向笔杆移动，可带动传力轴移动，传力轴带动摆动件摆动，通过应变片检测摆动件摆动产生的应变力，并将应变力以信号的形式传输至第二电路板，第二电路板根据应变力信号的大小调整笔尖书写的粗细。其中，通过将传力轴与摆动件的外壁连接，便于传力轴和摆动件的装配，可提高装配效率。
在一种可能的实施方式中，传力轴包括第一段和第二段，摆动件包括相对的第一侧和第二侧，摆动件的摆动部连接在第一侧和第二侧之间；
传力轴的第一段与笔尖的连接端连接，摆动件设在传力轴的第二段上且摆动件的第一侧外壁与传力轴的第二段连接，摆动件的第二侧在笔杆内固定设置。
通过将传力轴的第二段与摆动件的第一侧的外壁固定连接，将摆动件的第二侧固定连接在笔杆内部，这样传力轴移动带动摆动件的第一侧移动，而摆动件的第二侧固定不动，则摆动件的摆动部产生摆动变形，应变片检测摆动部形变产生的应变力，并以信号的形式传输至第二电路板。
本申请实施例还提供一种电子设备组件，包括电子设备和如上所述的触控笔。
本申请实施例提供的电子设备具有触控屏，通过触控笔操作电子设备的触控屏向电子设备提供输入，电子设备基于触控笔的输入，执行响应于该输入的操作。触控笔通过将第一电极设置在笔尖内，将第二电极设置在笔杆内，增大了第二电极和第一电极之间的距离，可降低第二电极和第一电极之间产生耦合现象，提高电子设备对触控笔的位置和倾斜角度的检测精度，从而提高触控笔的操作精度，提升触控笔的使用性能，改善触控笔与电子设备的交互性能。
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。
在一种可能的实施方式中，收纳部为至少一端开口的腔体。
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为本申请实施例一提供的一种触控笔的局部分解图；
图10为图9中的触控笔的剖面图；
图11为本申请实施例二提供的另一种触控笔的局部分解图；
图12为图11中的触控笔的剖面图；
图13为本申请实施例三提供的第三种触控笔的局部分解图；
图14为图13中的触控笔的剖面图；
图15为本申请实施例四提供的第四种触控笔的局部分解图；
图16为本申请实施例四提供的第五种触控笔的局部结构图。
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，触控笔100可以称为手写笔。
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10、笔杆20和后盖30。笔杆20的内部为中空结构，笔尖10和后盖30分别位于笔杆20的两端，后盖30与笔杆20之间可以通过插接或者卡合方式，笔尖10与笔杆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20内，且主轴组件50在笔杆20内可滑动设置。主轴组件50上具有外螺纹51，笔尖10包括书写端11和连接端12，其中，笔尖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20内时，笔尖10的连接端12伸入笔杆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10的更换。
其中，为了对笔尖10的书写端11受到的压力进行检测，参照图2A所示，笔尖10与笔杆20之间具有间隙10a，这样可以确保笔尖10的书写端11受到外力时，笔尖10可以朝向笔杆20移动，笔尖10的移动会带动主轴组件50在笔杆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10移动时，由于压感组件60的部分与笔杆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10的书写端11的压力，从而根据笔尖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10的书写端11内设置压力传感器，由压力传感器检测笔尖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)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。
其中，触控笔100为主动式电容笔时，参照图3，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。
在一种实施例中，参照图4所示，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20内，这样，触控笔100的笔尖10一端受力后，笔尖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，第一发射电极41和第二发射电极42之间容易出现耦合现象，两者发射的电磁场相互干扰，这会降低电子设备200对触控笔100的位置及倾斜程度的测量精度。以第一发射电极41为例，其向电子设备200发射的第一信号受到干扰后，可能导致电子设备200无法准确定位触控笔100在触控屏201上的位置，进而会导致触控笔100的操作出现偏差，例如，触控笔100点击的应用程序图标不是用户的目标应用程序图标， 或者，触控笔100画出的线条不是用户的目标线条。这会影响触控笔100的准确度，进而影响触控笔100的使用性能。
对此，本申请实施例提供一种触控笔及电子设备组件，触控笔内设有第一电极和第二电极，通过将第一电极设置在笔尖内，将第二电极设置在笔杆的内壁上，或者将第二电极设在笔杆内的固定件上，以使第一电极和第二电极之间具有足够的间距，以免第一电极和第二电极之间产生耦合现象，提高电子设备对触控笔的位置及倾斜程度的检测精度，提升触控笔的使用性能。以下通过不同实施例对本申请实施例的触控笔进行详细说明。
实施例一
图9为本申请实施例提供的一种触控笔的局部分解图；图10为图9中的触控笔的剖面图。
参照图9和图10所示，触控笔400内设置有第一电极44、第二电极45、第一电路板71和第二电路板72。
其中，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400在触控屏201上的位置。其中，当第一电极44为发射电极时，第一电极44即为上述的第一发射电极41。
第二电极45也可以为发射电极，例如，第二电极45用于向电子设备发射第二信号，电子设备根据第二电极45发射的第二信号，确定触控笔400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即为上述的第二发射电极42。
具体的，第一电极44与第一电路板71连接，第一电路板71与第二电路板72电连接，以通过第二电路板72控制第一电极44向电子设备200发射第一信号；第二电极45与第二电路板72电连接，以通过第二电路板72控制第二电极45向电子设备200发射第二信号。
在实际应用中，第一电路板71可以为控制板，例如，第一电路板71上集成有控制器；第二电路板72可以为主板。第二电路板72向第一电路板71传输信号，通过第一电路板71控制第一电极44和第二电极45向电子设备200发送信号。
其中，第二电路板72可以通过柔性导线与第一电路板71连接。示例性的，柔性导线可以为柔性电路板(Flexible printed circuit，简称FPC)、柔性电缆(cable)或柔性供电线(PIN)。
本实施例中，第一电极44通过第一电路板71与第二电路板72电连接。其中，第一电路板71可以直接和第一电极44连接；或者，第一电路板71通过导电件21与第一电极44连接，即导电件21连接在第一电极44和第一电路板420之间。
具体的，导电件21可以为印制电路板(Printed circuit boards，简称PCB)或者金属板。
另外，第二电极45可以通过上述柔性导线直接与第二电路板72电连接；或者，第二电极45通过柔性导线与第一电路板71电连接，并通过第一电路板71与第二电路板72电连接。
如前所述，第一电极44向电子设备200发射的第一信号，用于测量触控笔400的笔尖10在触控屏201上的位置。因而，第一电极44可以设置在笔尖10内，这样，用户操作触控笔400与电子设备200交互时，笔尖10离电子设备200的触控屏201较近，第一 电极44发射的第一信号的传输距离较短，电子设备200检测的笔尖10的位置较为精确。
第二电极45向电子设备200发射的第二信号，用于测量触控笔400的笔杆20相对于触控屏201的倾斜角度。相关技术中，第二电极45通常和第一电极44一起设置在笔尖10内。
但是，由于笔尖10内的空间有限，第二电极45和第一电极44之间的间距通常很近。因此，第二电极45和第一电极44之间容易产生耦合现象，第二电极45发射的第二信号和第一电极44发射的第一信号之间会互相干扰，继而会降低电子设备200对触控笔100的位置和倾斜角度的检测精度。
为此，本申请实施例中，第二电极45设置在所述笔杆20的内壁上，或者，第二电极45设在笔杆20内的固定件(参照下述连接套筒22)上。例如，参照图10所示，第二电极45可以设置在笔杆20的内壁上。这样，第二电极45和第一电极44之间的距离较远，第一电极44发射的第一信号和第二电极45发射的第二信号之间产生的电磁干扰较弱，或者，第一电极44和第二电极45之间互不干扰。因此，可以提高电子设备200对触控笔100的位置和倾斜角度的测量精度。
通过将第一电极44设置在笔尖10内，将第二电极45设置在笔杆20的内壁上，增大第二电极45和第一电极44之间的距离，降低第一电极44和第二电极45之间产生耦合现象，提高第一电极44和第二电极45发射信号的准确性，进而提高触控笔400的操作精度，提升触控笔400的使用性能。
参照图10所示，触控笔400的笔尖10的一端为其书写端11，书写端11为笔尖10的背离笔杆20的一端。用户操作触控笔400与电子设备200进行交互时，笔尖10的书写端11面向电子设备200的触控屏201，通过笔尖10的书写端11与触控屏201的接触，实现触控笔400在触控屏201上的操作。
例如，通过笔尖10的书写端11单击或者双击触控屏201上的应用程序的图标，以调用相应的应用程序；或者，通过触控笔400的书写端11在触控屏201上划线，以在触控屏201上书写或绘画。
笔尖10的与书写端11相对的另一端为其连接端12，笔尖10通过其连接端12与笔杆20内的主轴组件50的外螺纹51(参见图2B)连接。
需要说明的是，笔尖10和笔杆20之间具有间隙H1。这样，用户操作触控笔100时，笔尖10受到来自触控屏201的压力，此时，笔尖10可朝向笔杆20微小移动，触控笔400通过检测笔尖10的受力大小来调节笔尖10书写的线条粗细。
示例性的，笔尖10和笔杆20可以通过磁性吸附连接。例如，笔尖10内设置有磁性件，笔杆20内设置有磁性件，笔尖10内的磁性件和笔杆20内的磁性件具有磁性吸力；其中，笔尖10受力改变时，笔尖10和笔杆20之间的磁性吸力改变，以实现笔尖10相对笔杆20的移动。
参照图10所示，为了提高电子设备200对触控笔100的笔尖10的位置的检测精度，第一电极44可以设置在笔尖10的书写端11。这样用户操作触控笔400时，触控笔400的书写端11面向触控屏201并与触控屏201接触，位于书写端11的第一电极44与触控屏201之间的间距较小，第一电极44向电子设备200发射的第一信号的强度更高，电子设备200检测的触控笔400的笔尖10的位置更为准确。
如前所述，本实施例中，通过将第二电极45设置在笔杆20的内壁上，增大第二电极45与第一电极44之间的距离，降低第二电极45与第一电极44之间产生耦合现象，提高触控笔100的位置和倾斜角度的测量精度。但是，当触控笔400与电子设备200进行交互时，若第二电极45与触控屏201之间的距离过远，电子设备200接收到的第二电极45发射的第二信号的强度相应会减弱，这可能会降低电子设备200对触控笔100的倾斜角度的检测精度。
因此，本实施例中，第二电极45可以设置在笔杆20内靠近笔尖10的部位。如此，一方面，第二电极45位于笔杆20内，保证了第二电极45和第一电极44之间具有足够的间距，可以降低两者之间产生耦合现象；另一方面，第二电极45与笔尖10的距离较为合适，触控笔400与电子设备200交互时，可保证电子设备200接收到的第二电极45发射的第二信号具有足够的强度，进而可以确保电子设备200对触控笔100的倾斜角度的测量精度。
对于第一电路板71和第二电路板72在触控笔400内的具体布置方式，参照图10所示，在一些实施例中，依据触控笔400整体为长杆形的结构特点，第一电路板71和第二电路板72可以沿触控笔400的轴向布置。
具体的，以第一电路板71直接与笔尖10的书写端11内的第一电极44连接为例，第一电路板71的一端与第一电极44连接，第一电路板71的另一端沿触控笔400的轴向朝向笔杆20远离笔尖10的一端伸出。
以第一电路板71通过PCB板或金属板等导电件21与第一电极44连接为例，导电件21的一端与第一电极44连接，导电件21沿触控笔400的轴向延伸，第一电路板71的一端连接在导电件21的另一端，第一电路板71的另一端沿触控笔400的轴向朝向笔杆20远离笔尖10的一端伸出。
第二电路板72可以间隔布置于第一电路板71的背离第一电极44的一侧，第二电路板72可布置在笔杆20的轴线上，或者第二电路板72偏离笔杆20的轴线布置。
在实际应用中，触控笔400内通常还设置有接收电极(未示出)，接收电极用于接收电子设备200向触控笔400发射的信号，进而通过第二电路板72控制触控笔400执行电子设备200发送的命令。
其中，接收电极与第二电路板72之间通过柔性导线电连接；或者，接收电极通过柔性导线与第一电路板71电连接，再通过第一电路板71与第二电路板72电连接。
具体的，接收电极可以单独设置，即触控笔400内除第一电极44和第二电极45外，还设置有接收电极。或者，接收电极可以和作为发射电极的第一电极44或第二电极45中的一者集成设置。例如，接收电极可以和第一电极44为一体化结构，或者，接收电极和第二电极45为一体化结构。
应理解，接收电极和发射电极之间由于信号传输方向相反，因而接收电极和发射电极集成设置，对两者的性能不会造成影响。
在一些实施例中，接收电极单独设置，且接收电极可设置在第一电极44和第二电极45之间，或者，接收电极可以设置在第二电极45的远离第一电极44的一侧。
在另一些实施例中，接收电极可以集成设置在第一电极44上。或者，接收电极可以集成设置在第二电极45上。其中，由于第一电极44设置在笔尖10的书写端11，而笔尖 10的书写端11的空间有限，不便于接收电极和第一电极的集成设置，因此，接收电极可以与第二电极45集成设置。
针对于接收电极和第二电极45集成设置的情况，第二电极45可以包括信号发射模块(图中未示出)和信号接收模块(图中未示出)。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400的倾斜角度；第二电极45的信号接收模块用于接收电子设备200向触控笔400发射的信号，触控笔400的第二电路板72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400执行电子设备200发送的命令。
参照图10所示，为了提高触控笔100的位置和倾斜角度的检测精度，在一种实施方式中，第一电极44和第二电极45之间还可以设置有接地电极43，接地电极43和第二电路板72之间电连接。通过接地电极43降低第一电极44和第二电极45之间的信号干扰，减弱或避免第一电极44和第二电极45之间的耦合现象。
其中，接地电极43可以通过柔性导线直接和第二电路板72电连接；或者，接地电极43通过柔性导线和第一电路板71连接，并通过第一电路板71与第二电路板72电连接。
根据第一电极44和第二电极45在触控笔400内的位置，本实施例中，针对第一电路板71直接和第一电极44连接的情况，接地电极43可以套设在第一电路板71靠近第一电极44的部分的外部；针对第一电路板71与第一电极44之间连接有导电件21的情况，接地电极43可以套设在导电件21的外部。
需要说明的是，接地电极43和第一电极44均通过导电件21与第一电路板71电连接时，此时，导电件21可以为多层电路板，这样，导电件21可以分别提供两条相互独立的传输路径将第一电路板71分别与接地电极43和第一电极44电连接。
具体的，参照图9所示，本实施例中，笔杆20沿其轴向可以包括锥筒段20a和直筒段20b，锥筒段20a靠近笔尖10，笔尖10的连接端12与笔杆20的锥筒段20a连接。
在实际应用中，触控笔400的笔尖10通常可以为圆锥体形状，圆锥体的顶端为笔尖10的书写端11，圆锥体的底端和笔杆20的锥筒段20a连接。笔杆20的锥筒段20a可以与圆锥体形状的笔尖10的底端相匹配，笔杆20锥筒段20a的与笔尖10连接的一端与笔尖10的底端平滑过渡。
为了保证触控笔100的倾斜角度的检测精度，本实施例中，第二电极45可以设置在笔杆20的锥筒段20a的内壁上。这样，在触控笔400与电子设备200交互时，位于笔杆20锥筒段20a内的第二电极45与电子设备200之间的距离较近，电子设备200接收到的第二电极45发射的第二信号的强度较好，电子设备200检测的触控笔100的倾斜角度更准确。
参照图9和图10所示，本实施例的触控笔400内的固定件可以为连接套筒22，连接套筒22固定在笔杆20内，且连接套筒22位于笔杆20内靠近笔尖10的一端。笔尖10的连接端12伸入连接套筒22内，并与连接套筒22活动连接。
具体的，连接套筒22可以固定在笔杆20的内壁上。示例性的，连接套筒22可以通过粘接、焊接、锁固或卡接等方式固定在笔杆20的内壁上。
其中，连接套筒22可以沿笔杆20的轴向设置，且至少部分连接套筒22位于笔杆20的锥筒段20a内。例如，连接套筒22全部位于笔杆20的锥筒段20a内；或者，连接套筒 22的部分结构位于笔杆20的锥筒段20a内，连接套筒22的另一部分结构位于笔杆20的直筒段20b内。
对于第二电极45在笔杆20内的具体设置方式，参照图9和图10所示，在一种具体实施方式中，第二电极45可以贴设在笔杆20的内壁上，例如，第二电极45贴设在笔杆20的锥筒段20a的内壁上。
示例性的，第二电极45可以通过注塑方式注塑在笔杆20锥筒段20a的内壁上；或者，第二电极45粘接在笔杆20锥筒段20a的内壁上；或者，第二电极45卡设在笔杆20锥筒段20a的内壁上；或者，第二电极45还可通过其他连接方式固定在笔杆20锥筒段20a的内壁上，本实施例对此不作具体限制。
在实际应用中，触控笔400的外壳通常由不导电的材料制成。例如，触控笔400的笔杆20为塑料笔杆20。为了实现笔杆20内壁上的第二电极45与第一电路板71或第二电路板72的连接，在一些实施方式中，可以在第二电极45与第一电路板71之间连接柔性电连接件23，或者在第二电极45与第二电路板72之间连接柔性电连接件23，以通过柔性电连接件23实现第二电极45与作为主板的第二电路板72的导通。
其中，柔性电连接件23可以沿笔杆20的内壁布置，柔性电连接件23的一端与贴设在笔杆20内壁上的第二电极45连接，柔性电连接件23的另一端延伸至第一电路板71或第二电路板72，并与第一电路板71或第二电路板72连接。
示例性的，柔性电连接件23可以为FPC、柔性电缆或柔性供电线等柔性导线。应说明，以下提到的柔性电连接件23均可以为上述柔性导线，不再赘述。
在另一些实施方式中，笔杆20内设置的连接套筒22为导电套筒。例如，连接套筒22可以为金属套筒，贴设在笔杆20内壁上的第二电极45可以通过连接套筒22与第一电路板71或第二电路板72电连接。
具体的，第二电极45可以和可导电的连接套筒22接触，连接套筒22与第一电路板71或第二电路板72电连接，以此实现第二电极45与第一电路板71的电连接或第二电极45与第二电路板72的电连接。其中，第二电极45可以和连接套筒22直接接触或间接接触。
在一种具体实施方式中，连接套筒22的外壁上可以设有导电弹片26，例如，导电弹片26设置在连接套筒22的朝向笔尖10的一端的外壁上。第二电极45与导电弹片26接触，连接套筒22的外壁和第一电路板71之间连接有柔性电连接件23，或者，连接套筒22的外壁和第二电路板72之间连接有柔性电连接件23。
参照图10所示，通过在连接套筒22的外壁上设置导电弹片26，笔杆20内壁上的第二电极45与导电弹片26接触，以通过导电弹片26导通第二电极45和连接套筒22。
其中，由于导电弹片26具有弹性，导电弹片26依靠其弹性变形使第二电极45与其接触良好，以确保第二电极45与连接套筒22之间电连接的稳定性。
在第二电极45通过导电弹片26与连接套筒22电连接的基础上，连接套筒22的外壁上还连接有柔性电连接件23，柔性电连接件23的一端与连接套筒22的外壁连接，柔性电连接件23的另一端连接至第一电路板71或第二电路板72，以此实现第二电极45与第一电路板71或第二电路板72之间的电连接。
实施例二
图11为本申请实施例二提供的另一种触控笔的局部分解图；图12为图11中的触控笔的剖面图。参照图11和图12所示，与实施例一不同的是，本实施例中，第二电极45可以设置在连接套筒22上。其中，第二电极45可以与第一电路板71或第二电路板72电连接，或者，第二电极45通过连接套筒22与第一电路板71或第二电路板72电连接。
参照图11和图12所示，连接套筒22的外壁上可以开设有容纳槽221，第二电极45上设有与容纳槽221配合的凸起部451，第二电极45通过凸起部451与容纳槽221配合设置于连接套筒22的外壁上。如此，在组装触控笔400时，可以先将第二电极45安装在连接套筒22上，之后再将连接套筒22固定在笔杆20内。
通过第二电极45的凸起部451与容纳槽221之间配合，避免第二电极45在连接套筒22的外壁上转动，实现了对第二电极45在连接套筒22上限位的作用，以及便于第二电极45在连接套筒22上的装配。
具体的，在一些实施方式中，为了便于第二电极45与连接套筒22连接，第二电极45可以设置为环状结构，且环状的第二电极45与连接套筒22的尺寸相匹配，这样可以将环状的第二电极45直接套设在连接套筒22的外壁上。而在一些其他实施方式中，第二电极45也可以为片状结构或其他结构，第二电极45设置在连接套筒22上的容纳槽221内。
其中，以第二电极45为环状结构为例，连接套筒22上可以设置有一个容纳槽221，第二电极45的与该容纳槽221对应的凸起部451伸入容纳槽221内；或者，连接套筒22上沿其周向可以间隔设置有多个容纳槽221，第二电极45的对应这些容纳槽221的凸起部451均卡入容纳槽221内，这样可以提高第二电极45与连接套筒22连接的稳定性。
又或者，容纳槽221可以为沿连接套筒22的周向设置的环形凹槽。通过在连接套筒22的外壁上加工环形凹槽来作为容纳槽221，一方面，便于容纳槽221的加工；另一方面，便于将第二电极45安装在容纳槽221内。
对此，第二电极45可以设置为与环状的容纳槽221匹配的环状结构，第二电极45整个卡入容纳槽221内，这样，可提高第二电极45与容纳槽221连接的稳定性。或者，第二电极45为片状结构，第二电极45仅位于环状的容纳槽221内的某一部位，此时，第二电极45可以安装于环状的容纳槽221的任意部位。
针对于此，连接套筒22可以为可导电的金属套筒，第二电极45与连接套筒22导通；且，连接套筒22的外壁与第一电路板71之间通过柔性电连接件23连接，或者连接套筒22的外壁与第二电路板72之间通过柔性电连接件23连接，以通过可导电的连接套筒22实现第二电极45与第一电路板71或第二电路板72之间的电连接。
或者，连接套筒22不导电，例如，连接套筒22为塑料套筒。第二电极45直接通过柔性电连接件23与第一电路板71或第二电路板72电连接。具体的，柔性电连接件23的一端伸入容纳槽221内与第二电极45接触，柔性电连接件23的另一端与第一电路板71或第二电路板72连接。
其中，柔性电连接件23的与第二电极45连接的一端可以延伸至容纳槽221的槽底，即柔性电连接件23与第二电极45面向容纳槽221的槽底的一侧表面连接，这样，容纳槽221可以对柔性电连接件23起到固定和限位作用，可以提高第二电极45与柔性电连接件23连接的稳定性。
需要说明的是，本实施例中，容纳槽221可以为连接套筒22的外壁向内开设的凹陷区域，柔性电连接件23可以沿连接套筒22的外壁面伸入容纳槽221内与第二电极45连接；或者，容纳槽221可以为贯穿连接套筒22两侧的通孔，对此，柔性电连接件23可以直接从连接套筒22的内壁延伸至容纳槽221所在的部位。
实施例三
图13为本申请实施例三提供的第三种触控笔的局部分解图；图14为图13中的触控笔的剖面图。参照图13和图14所示，除了在连接套筒22的外壁上开设容纳槽221来安装第二电极45的形式外，还可以将第二电极45设置为集成在柔性电路板27上的形式，通过柔性电路板27与第一电路板71或第二电路板72之间的电连接，实现第二电极45与第一电路板71或第二电路板72的电连接。
需要说明的是，由于柔性电路板27的厚度很薄，因而，可以不用在连接套筒22上开设容纳槽221，而是直接将集成有第二电极45的柔性电路板27贴设在连接套筒22的外壁上。
或者，也可以在连接套筒22上开设容纳槽221，使柔性电路板27的对应于容纳槽221的部位卡入容纳槽221内，提高柔性电路板27与连接套筒22连接的稳定性。
具体的，在一种实施方式中，集成有第二电极45的柔性电路板27直接与第一电路板71或第二电路板72连接。参照图13和图14所示，柔性电路板27贴设在连接套筒22的外壁上，且柔性电路板27的侧边伸出有引脚271，例如，柔性电路板27的朝向第一电路板71或第二电路板72的一侧伸出有引脚271，引脚271延伸至与第一电路板71或第二电路板72连接。
在另一种实施方式中，针对可导电的连接套筒22，集成有第二电极45的柔性电路板27可以通过导电胶贴设在连接套筒22的外壁上，这样，柔性电路板27和连接套筒22之间可导通。
然后，再通过在连接套筒22的外壁和第一电路板71之间连接柔性电连接件23，或者，在连接套筒22的外壁和第二电路板72之间连接柔性电连接件23，将集成有第二电极45的柔性电路板27连接至第一电路板71或第二电路板72上。
实施例四
图15为本申请实施例四提供的第四种触控笔的局部分解图；图16为本申请实施例四提供的第五种触控笔的局部结构图。
参照图15所示，触控笔400内还设置主轴组件50和压感组件60，压感组件60包括摆动件61和应变片62，主轴组件50(参见图2B)至少包括传力轴24，传力轴24的一端与笔尖10的连接端12(参见图13)连接，传力轴24的另一端与摆动件61连接，应变片62贴设在摆动件61朝向第二电路板72的一端，应变片62与第一电路板71或第二电路板72电连接。
结合图14所示，笔尖10和笔杆20的外观连接部位具有间隙H1，该间隙H1可使得笔尖10相对笔杆20进行微小移动。触控笔400的笔尖10接触到电子设备200的触控屏201时，笔尖10受压，该间隙H1可使笔尖10在受力时朝向笔杆20移动。
笔尖10移动带动传力轴24移动，传力轴24带动摆动件61摆动，摆动件61为弹性件，摆动件61可根据笔尖10受力大小而产生相应幅度的摆动，应变片62用于检测摆动件61摆动时产生的弹性力，并将该弹性力以信号的形式传输至第二电路板72，第二电路板72根据该弹性力调整笔尖10书写时的粗细。其中，应变片62可通过柔性导线与第一电路板71连接，应变片62测得的应变力信号可通过第一电路板71传输至第二电路板72；或者，应变片62通过柔性导线直接与第二电路板72连接，应变片62测得的应变力信号直接传输至第二电路板72。
参照图15所示，在具体应用中，传力轴24的一端可以和笔尖10的连接端12连接，例如，笔尖10的连接端12内部中空，第一电路板71沿触控笔400的轴线设置在连接端12内，接地电极43套设在第一电路板71外，传力轴24固定连接在连接端12的内壁上。
例如，传力轴24可以通过螺纹连接、粘接或焊接的方式连接在笔尖10连接端12的内壁上。
传力轴24的另一端与摆动件61连接。具体的，摆动件61例如可以为类似“U”型框的结构，摆动件61在笔杆20的径向上的一侧固定在笔杆20内壁上，传力轴24的另一端与摆动件61在笔杆20的径向上的另一侧固定连接。
如此，摆动件61在笔杆20径向上的一侧固定在笔杆20内，另一侧由于和传力轴24固定连接，因而，可随传力轴24移动，摆动件61的连接在这两侧之间的部分随之摆动并产生变形。
其中，摆动件61固定在笔杆20内的一侧，可以直接固定连接在笔杆20的内壁上，或者，通过笔杆20内设置的固定套筒25固定。
示例性的，摆动件61可以为金属件，笔杆20内壁或固定套筒25内壁与摆动件61连接的部分通常为金属材料，例如，笔杆20内壁或固定套筒25内壁的相应部位覆盖有金属层，摆动件61焊接在笔杆20内壁或固定套筒25内壁。
其中，摆动件61在未摆动时，其面向第二电路板72的一侧端面与第二电路板72之间具有间隙H2，该间隙H2用于给摆动件61预留摆动空间，以使摆动件61的面向第二电路板72一侧的端面可在间隙H2内摆动，这样，应变片62可检测出摆动件61摆动产生的弹性力，并将该信号传输给第二电路板72。
需要说明的是，摆动件61与第二电路板72之间的间隙H2可以大于笔尖10和笔杆20之间的间隙H1，这样，笔尖10移动带动摆动件61摆动至与第二电路板72接触时，笔尖10与笔杆20之间仍具有缝隙，以保证触控笔100的使用性能。
参照图15所示，传力轴24穿过摆动件61的面向笔尖10一侧的端面伸入至摆动件61内，且传力轴24与摆动件61的一侧内壁固定连接，例如，传力轴24与摆动件61的该侧内壁焊接或粘接。
此种方式，传力轴24和摆动件61的装配较为复杂，需要先在摆动件61的面向笔尖10一侧的端面开设通孔，传力轴24通过通孔伸入摆动件61内，并和摆动件61的内侧壁连接。完成传力轴24和摆动件61的组装后，再将摆动件61与笔杆20固定连接的一侧进行折弯处理，之后，再通过焊接方式将摆动件61连接在笔杆20内壁或固定套筒25内壁。其中，由于笔杆20内壁或固定套筒25内壁的与摆动件61连接的部位覆盖有金属层，需要事先定位，因而焊接精度高。
针对于此，参照图16所示，本实施例中，传力轴24的一端与笔尖10的连接端12连接，摆动件61设在传力轴24的另一端上且与传力轴24连接。这样，避免了在摆动件61的端面上开设通孔，无需传力轴24伸入摆动件61内与摆动件61的内壁连接，因而，可以先将摆动件61与固定套筒25连接，再连接传力轴24与摆动件61。如此，可简化传力轴24和摆动件61的装配工序，提高压感组件60的装配效率。
参见图16所示，摆动件61整体仍然可以为“U”型框结构，摆动件61在笔杆20的径向上包括相对的第一侧611和第二侧612，摆动件61的第一侧611的外壁和传力轴24固定连接，摆动件61的第二侧612固定连接在笔杆20内，例如，摆动件61的第二侧612和笔杆20内的固定套筒25连接。
摆动件61的摆动部613连接在摆动件61的第一侧611和第二侧612之间，示例性的，摆动部613可以包括摆动件61面向笔尖10一侧的端面和摆动件61面向第二电路板72一侧的端面，应变片62贴设在面向第二电路板72一侧的摆动部613的外表面上。
在装配时，可以预先对摆动件61的两侧的摆动部613进行折弯处理。其中，对摆动部613需要固定在笔杆20内的一端进行折弯处理形成摆动件61的第二侧612，将摆动件61的第二侧612先固定连接在固定套筒25上，然后再将摆动件61的第一侧611的外壁与传力轴24连接。如此可简化装配工序，提高装配效率。
其中，参照图16所示，沿笔杆20的轴向，传力轴24包括第一段241和第二段242，传力轴24的第一段241与笔尖10的连接端12连接，例如，传力轴24的第一段241与笔尖10连接端12的内壁连接；传力轴24的第二段242沿摆动件61的第一侧611的外壁延伸，摆动件61位于传力轴24的第二段242上，且传力轴24的第二段242与摆动件61的第一侧611的外壁连接。
在实际应用中，摆动件61通常位于笔杆20的直筒段20b内，而为了确保摆动件61摆动变形能够传递足够的弹性力，摆动件61的摆动部613应尽可能多的占据笔杆20直筒段20b内的径向上的空间。
因此，参照图16所示，通常摆动件61的第一侧611相较于传力轴24的第一段241更靠近笔杆20的内壁。针对于此，本实施例中，传力轴24还包括连接在第一段241和第二段242之间的挡壁243，挡壁243的第一端与第一段241连接，挡壁243的第二端与第二段242连接，且挡壁243的第二端相较于第一端更靠近笔杆20的内壁，摆动件61的第二侧612可以靠近挡壁243。
通过在传力轴24上设置挡壁243，挡壁243连接在传力轴24的第一段241和第二段242之间，挡壁243的第一端与第一段241连接，挡壁243的第二端与第二段242连接。这样，传力轴24的第二段242可以带动摆动件61第一侧611移动，摆动件61的摆动部613倾斜，应变片62发生形变，并将形变量传递给第一电路板71或第二电路板72。
示例性的，传力轴24的挡壁243可以沿笔杆20的径向延伸，传力轴24的挡壁243与传力轴24的第一段241及第二段242相互垂直。
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 (17)

  1. 一种触控笔，其特征在于，包括笔杆和位于所述笔杆一端且可拆卸的笔尖，还包括第一电极、第二电极、第一电路板和第二电路板；所述第一电极设置在所述笔尖内，所述第一电极与所述第一电路板连接，且所述第一电路板与所述第二电路板电连接；所述第二电极设置在所述笔杆的内壁上，或者所述第二电极设在所述笔杆内的固定件上，所述第二电极与所述第二电路板或所述第一电路板电连接，所述第二电极用于发射测量所述笔杆相对于触控屏的倾斜角度的第二信号。
  2. 根据权利要求1所述的触控笔，其特征在于，所述固定件为连接套筒，所述连接套筒固定在所述笔杆中。
  3. 根据权利要求2所述的触控笔，其特征在于，所述笔杆包括锥筒段和直筒段，所述锥筒段位于所述笔尖和所述直筒段之间，所述第二电极设置在所述锥筒段的内壁上，且至少部分连接套筒位于所述锥筒段内。
  4. 根据权利要求3所述的触控笔，其特征在于，所述连接套筒为导电套筒，所述第二电极通过所述连接套筒与所述第一电路板或所述第二电路板电连接。
  5. 根据权利要求4所述的触控笔，其特征在于，所述连接套筒的朝向所述笔尖的一端的外壁上设有导电弹片，所述第二电极与所述导电弹片接触；所述连接套筒的外壁和所述第一电路板之间连接有柔性电连接件，或者，所述连接套筒的外壁和所述第二电路板之间连接有柔性电连接件。
  6. 根据权利要求2所述的触控笔，其特征在于，所述第二电极设置在所述连接套筒的外壁上。
  7. 根据权利要求6所述的触控笔，其特征在于，所述连接套筒的外壁上开设有容纳槽，所述第二电极上设有与所述容纳槽配合的凸起部，所述第二电极通过所述凸起部与所述容纳槽配合设置于所述连接套筒的外壁上。
  8. 根据权利要求7所述的触控笔，其特征在于，所述连接套筒为导电套筒，所述连接套筒的外壁和所述第一电路板之间连接有柔性电连接件，或者，所述连接套筒的外壁和所述第二电路板之间连接有柔性电连接件。
  9. 根据权利要求8所述的触控笔，其特征在于，所述柔性电连接件的一端伸入所述容纳槽内与所述第二电极接触，所述柔性电连接件的另一端与所述第一电路板或所述第二电路板连接。
  10. 根据权利要求6所述的触控笔，其特征在于，所述第二电极集成在柔性电路板上，所述柔性电路板贴设在所述连接套筒的外壁上，且所述柔性电路板上伸出有引脚，所述引脚连接至所述第一电路板或所述第二电路板。
  11. 根据权利要求1-10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。
  12. 根据权利要求1-11任一项所述的触控笔，其特征在于，所述笔尖的一端为书写端，所述笔尖的另一端为连接端，所述连接端伸入所述笔杆内；所述第一电极位于所述书写端。
  13. 根据权利要求12所述的触控笔，其特征在于，还包括主轴组件和压感组件，所述压感组件包括摆动件和应变片，所述主轴组件至少包括传力轴；
    所述传力轴的一端与所述笔尖的所述连接端连接，所述传力轴的另一端与所述摆动件的外壁连接，所述应变片贴设在所述摆动件朝向所述第二电路板的一端，所述应变片与所述第一电路板或所述第二电路板电连接。
  14. 根据权利要求13所述的触控笔，其特征在于，所述传力轴包括第一段和第二段，所述摆动件包括相对的第一侧和第二侧，所述摆动件的摆动部连接在所述第一侧和所述第二侧之间；
    所述传力轴的第一段与所述笔尖的所述连接端连接，所述摆动件设在所述传力轴的第二段上，且所述摆动件的所述第一侧外壁与所述传力轴的第二段连接，所述摆动件的第二侧在所述笔杆内固定设置。
  15. 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。
  16. 根据权利要求15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。
  17. 根据权利要求16所述的电子设备组件，其特征在于，所述收纳部为至少一端开口的腔体。
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