WO2023169476A1 - Électrode de pointe de stylo et stylo électronique - Google Patents

Électrode de pointe de stylo et stylo électronique Download PDF

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Publication number
WO2023169476A1
WO2023169476A1 PCT/CN2023/080326 CN2023080326W WO2023169476A1 WO 2023169476 A1 WO2023169476 A1 WO 2023169476A1 CN 2023080326 W CN2023080326 W CN 2023080326W WO 2023169476 A1 WO2023169476 A1 WO 2023169476A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
pen tip
pen
shielding
peripheral surface
Prior art date
Application number
PCT/CN2023/080326
Other languages
English (en)
Chinese (zh)
Inventor
胡健
董雷
王俊平
唐辉俊
肖正伟
Original Assignee
华为技术有限公司
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
Priority claimed from CN202210824752.4A external-priority patent/CN116774840A/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2023169476A1 publication Critical patent/WO2023169476A1/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks

Definitions

  • the present application relates to the technical field of electronic equipment accessories, and in particular to a pen tip electrode and an electronic pen.
  • An electronic pen is an external device that can interact with an electronic device with a touch screen.
  • the electronic pen has a pen tip outer cover and a pen tip electrode installed in the pen tip outer cover.
  • the pen tip electrode is close to the pen tip and is used to realize contact position recognition and pressure recognition of the electronic pen.
  • the appearance surface of the conventional pen tip electrode is not a smooth transition, but forms an obvious step. After the user removes the pen tip outer cover, he or she can see the stepped appearance of the internal pen tip electrode, which does not look good.
  • This application provides a pen tip electrode and an electronic pen.
  • the outer peripheral surface of the pen tip electrode located in the pen tip outer cover has no steps. After the user removes the pen tip outer cover, the outer peripheral surface of the pen tip electrode has no obvious steps. The user experience better.
  • the technical solution of the present application provides a pen tip electrode installed in an electronic pen.
  • the pen tip electrode includes a first electrode, a shield electrode and a second electrode.
  • the shield electrode surrounds the outer periphery of the first electrode, and the second electrode surrounds the first electrode.
  • the pen tip electrode has a receiving part, and the receiving part is accommodated in the pen tip outer cover of the electronic pen, and one end of the receiving part It is used to contact the tip conductor of the electronic pen, and the other end of the receiving part is used to face the opening of the pen tip cover;
  • the outer peripheral surface of the receiving part has no step, and at least part of the outer peripheral surface of the receiving part is composed of the outer peripheral surface of the second electrode.
  • the tip cover of the electronic pen may be a tapered cover body, one end of which is closed to form a tip, and the opposite end is open to form an opening.
  • the nib conductor is mounted at the tip within the nib housing.
  • the first electrode, the shielding electrode and the second electrode can each be roughly a rotary body that circles around, and the three are nested and circled in sequence. "Surround” describes the nesting relationship of the three electrodes from the inside to the outside, and is not limited to the relative positions of the three electrodes in the length direction.
  • the shielding electrode surrounds the outer periphery of the first electrode.
  • the receiving part of the pen tip electrode is an overall division of the pen tip electrode.
  • the receiving part includes a part where the first electrode is accommodated in the pen tip outer cover, a part where the shielding electrode is accommodated in the pen tip outer cover, and a part where the second electrode is accommodated in the pen tip. part of the outer cover.
  • the outer peripheral surface of the receiving part has no step difference, that is, the outer peripheral surface of the receiving part is continuously distributed without any obvious steps.
  • the entire outer peripheral surface of the receiving portion may be formed by the outer peripheral surface of the second electrode, or a local area of the outer peripheral surface of the receiving portion may be formed by the outer peripheral surface of the second electrode.
  • the outer circumferential surface of the receiving portion includes a tapered surface, and the small diameter end of the tapered surface is used to face the pen tip conductor. Book In the plan, the small diameter end refers to the smaller diameter end of the cone surface.
  • the tapered surface is a smooth transition surface.
  • the outer circumferential surface of the receiving part includes the tapered surface, so that the outer circumferential surface of the receiving part includes a smooth transition area to present a smooth transition appearance without obvious step-like step differences, so that the pen tip electrode can appear Similar to the characteristics of ballpoint pen refills, it has better appearance.
  • the tapered surface design of the receiving part can match the tapered surface of the pen tip cover, which can make the external appearance of the electronic pen consistent with the internal appearance, creating a good design quality.
  • the entire outer peripheral surface of the receiving portion is formed by the outer peripheral surface of the second electrode.
  • the second electrode is the only appearance part of the containment part, which makes the containment part complete, concise, consistent (only the color and texture of the second electrode will be displayed, and there will be no color and texture of other components), no steps The appearance of step difference.
  • the first electrode includes a connected first electrode part and a second electrode part, the diameter of the first electrode part is smaller than the diameter of the second electrode part, the first electrode part is close to the tip conductor of the electronic pen, and the second electrode part The electrode part is away from the tip conductor of the electronic pen.
  • This solution can make the structure of the pen tip electrode adapt to the receiving cavity of the pen tip outer cover.
  • the first electrode part is thin, so that the outer diameter of the part of the pen tip electrode close to the pen tip conductor can be made smaller, so that the part of the pen tip electrode close to the pen tip conductor can adapt A relatively small space at the tip of the nib housing.
  • the shielding electrode includes a first shielding part and a second shielding part connected, the outer diameter of the first shielding part is smaller than the outer diameter of the second shielding part, the first shielding part surrounds the first electrode part, and the second shielding part surrounds the first shielding part.
  • the shielding portion surrounds the second electrode portion.
  • the thickness of the insulating material between the first electrode part and the first shielding part can be ensured, thereby helping to avoid short circuit between the first electrode part and the first shielding part, and ensuring the insulation between the first shielding part and the second electrode.
  • the thickness of the material is beneficial to avoid short circuit between the first shielding part and the second electrode.
  • the first electrode includes a pen tip
  • the first electrode part connects the pen tip and the second electrode part
  • the diameter of the pen tip is larger than the diameter of the first electrode part
  • the pen tip is used to contact the pen tip conductor of the electronic pen .
  • the end face of the first electrode is used to contact the pen tip conductor; the end face of the shielding electrode close to the pen tip conductor is flush with the end face of the first electrode, or the end face of the shielding electrode close to the pen tip conductor is flush with the end face of the first electrode. Certain spacing.
  • the first electrode does not need to form the pen tip, and the end surface of the first electrode (the surface whose normal line is basically along the axial direction of the pen tip electrode) is in contact with the pen tip conductor.
  • the end face of the shielding electrode close to the pen tip conductor can be flush with the end face of the first electrode.
  • the flushness can mean that it is exactly aligned (that is, parallel and coplanar), or it can also mean that there is a certain error (for example, the two surfaces are basically parallel, but there is a certain error). spacing, which is within manufacturing tolerances).
  • the pen tip electrode further includes an appearance piece, the appearance piece surrounds the periphery of the first electrode, and any two of the appearance piece, the second electrode, the shielding electrode and the first electrode are separated by an insulating material; A part of the outer peripheral surface of the part is composed of the outer peripheral surface of the appearance piece, and the other part of the outer peripheral surface of the receiving part is composed of the outer peripheral surface of the second electrode.
  • the appearance piece and the second electrode can be considered to be arranged side by side and spaced apart, and the outer peripheral surfaces of both serve as the outer peripheral surface of the receiving part.
  • the appearance part can basically have a rotary cylinder structure.
  • the appearance part is not electrically connected to the circuit board assembly of the electronic pen, and the appearance part is not used as an electrode.
  • this solution can be applied in such a scenario: when the end of the shielding electrode close to the pen tip conductor is basically flush with the end of the second electrode close to the pen tip conductor, and both the shielding electrode and the second electrode have a certain distance from the pen tip conductor, you can Set the appearance part, In order to make the outer peripheral surface of the receiving part have a step-free structural feature, the outer peripheral surface of the receiving part is simple and consistent. Since the appearance part is not an electrode, there is no mutual interference between the appearance part and the first electrode. In this solution, the appearance part and the second electrode can have the same color and texture. When the user removes the pen tip cover, he can see that the receiving part has a basically consistent appearance and texture, and there is basically no color difference.
  • the first electrode has a constant diameter and the shield electrode has a constant outer diameter.
  • This solution provides a pen tip electrode with a structural form.
  • the pen tip electrode has a relatively simple structure, good mass production, and can meet product needs.
  • the shielding electrode includes a connected first shielding part and a second shielding part, the first shielding part is close to the tip conductor, the second shielding part is away from the tip conductor, the second electrode surrounds the second shielding part; the receiving part A part of the outer peripheral surface is formed by the outer peripheral surface of the first shielding part, and the other part of the outer peripheral surface of the receiving part is formed by the outer peripheral surface of the second electrode.
  • the first shielding part and the second electrode can be considered to be arranged side by side and spaced apart, and the outer peripheral surfaces of both serve as the outer peripheral surface of the receiving part. This solution provides a structural form of pen tip electrode that can meet product needs.
  • the shield electrode completely separates the first electrode from the second electrode.
  • the shielding electrode completely separates the second electrode from the first electrode, even if no area of the second electrode directly faces the first electrode, so that the shielding electrode can completely isolate the second electrode from the first electrode. The mutual signal interference between them can ensure the electrical performance of the pen tip electrode.
  • the first electrode has a connection end away from the pen tip conductor, the connection end is located outside the shield electrode and the second electrode, the insulating material covers a local area of the connection end, and the area of the connection end not covered by the insulating material is used for It is electrically connected to the circuit board assembly of the electronic pen.
  • This solution can realize the electrical connection between the first electrode and the circuit board assembly, has simple design and good mass production.
  • the electrical connection region on the first electrode may be formed during injection molding of the first electrode.
  • the pen tip electrode includes a shielding electrode conductive part.
  • the shielding electrode conductive part is provided in the insulating material between the shield electrode and the first electrode, and is connected to an end of the shielding electrode away from the pen tip conductor.
  • the shielding electrode conductive part is The part is used for electrical connection with the circuit board of the electronic pen.
  • the shielding electrode conductive portion may be entirely formed on the surface of the insulating material; or part of the shielding electrode conductive portion may be formed on the surface of the insulating material, and the other part may be embedded below the surface of the insulating material.
  • the shielding electrode conductive part may be a solid component, or may be formed through an integrated process. This solution can realize the electrical connection between the shielding electrode and the circuit board assembly.
  • the pen tip electrode includes a second electrode conductive part, and the second electrode conductive part is connected to an end of the second electrode away from the pen tip conductor, and is used for electrical connection with the circuit board of the electronic pen.
  • the second electrode conductive part may be a solid component, or may be formed through an integrated process. This solution can realize the electrical connection between the second electrode and the circuit board assembly.
  • the tip electrode includes an insulated fitting portion, the fitting portion covers an end of the second electrode away from the tip conductor, and covers the insulating material between an end of the second electrode away from the tip conductor and the shielding electrode, and the fitting portion is used to Fixedly connected to the main shaft of the electronic pen; a part of the second electrode conductive part is located between the mating part and the insulating material covered by the mating part, and is connected to the second electrode; the other part of the second electrode conductive part is located between the mating part outside, and is disposed on the insulating material between the shielding electrode and the first electrode, and is used for electrical connection with the circuit board assembly of the electronic pen.
  • the fitting part can cooperate with the wall of the inner cavity of the spindle to achieve a fixed connection between the pen tip electrode and the spindle. This will help reduce the stress concentration between the pen tip electrode and the spindle and improve the reliability of the pen tip electrode and the electronic pen. sex.
  • a channel may be formed between the fitting part and the insulating material covered by it, and a part of the second electrode conductive part is located in the channel. Another part of the second electrode conductive part can extend outside the channel and be electrically connected to the circuit board assembly.
  • any one or more of the first electrode, the shielding electrode, and the second electrode include an electrode core and a conductive shielding layer.
  • the conductive shielding layer is wrapped around the outer periphery of the electrode core.
  • the material of the conductive shielding layer is in contact with the electrode core.
  • the materials are different.
  • the electrode core is a conductor, which can be metal, for example.
  • the conductive shielding layer has shielding properties.
  • the conductive shielding layer includes but is not limited to conductive materials such as metals, and may also include non-metallic conductive materials such as carbon and graphene. Both the electrode core and the conductive shielding layer have It has conductive properties, but their materials are different. Their dielectric constant (or capacitive reactance) is different, and their absorption of electromagnetic waves is different. Therefore, the conductive shielding layer can enhance the signal shielding effect and optimize the signal interference between each electrode. .
  • the tip electrode includes a one-piece structure manufactured by an injection molding process.
  • the entire pen tip electrode may be an integrated structure; or the pen tip electrode may include several parts, one part of which is an integrated structure (no assembly gap), and the remaining parts are not an integrated structure (there is an assembly gap).
  • the one-piece structure can be manufactured through injection molding process.
  • the electrode and insulating material in the pen tip electrode this part can be called the main part
  • the part in the pen tip electrode used for electrical connection with the circuit board assembly such as the shield electrode conductive part, the second electrode conductor part, etc.
  • this part can be called the electrical connection part
  • the main body part can be manufactured by an injection molding process to form an integrated structure
  • the electrical connection part can be manufactured by other processes, such as laser direct forming technology, and the electrical connection part is integrated with the main body part, so that the entire pen tip electrode is One-piece construction.
  • the main body part can be manufactured through an injection molding process to form an integrated structure, and the electrical connection part can be assembled to the main body part through an assembly process, so that the entire pen tip electrode is not an integrated structure.
  • the integrated structure ensures that there is no matching gap between the electrodes.
  • the inside of the pen tip electrode is not easy to loosen, making the pen tip electrode less likely to shake, thereby ensuring user experience.
  • the integrated structure can also reduce the difficulty of assembling the pen tip electrode in the electronic pen and improve the mass production of the electronic pen.
  • the integrated structure makes the first electrode, the shielding electrode and the second electrode more coaxial, which helps ensure consistent performance of the electronic pen when used at various angles, thereby ensuring user experience.
  • the technical solution of the present application provides an electronic pen, which includes a pen tip outer cover, a pen tip conductor, a circuit board assembly and any one of the above pen tip electrodes;
  • the pen tip outer cover forms a receiving cavity with an opening at one end;
  • the pen tip conductor is installed on In the receiving cavity, and located at one end away from the opening;
  • the receiving part of the pen tip electrode is located in the receiving cavity, one end of the receiving part is in contact with the pen tip conductor, and the other end of the receiving part faces the opening;
  • the first electrode, the shielding electrode and the second electrode are all connected with Circuit board components are electrically connected.
  • the pen tip outer cover may be a tapered cover body, one end of which is closed to form a tip, and the opposite end is open to form an opening.
  • the nib conductor is mounted at the tip within the nib housing.
  • the pen tip outer cover includes a connected pen tip part and a connecting part, and the pen tip part and the connecting part together form a receiving cavity; the pen tip conductor and the receiving part are both located in the pen tip part; the electronic pen also includes a main shaft, the main shaft and the connecting part Fixed connection.
  • the main shaft and the connecting part can form a detachable fixed connection so that the user can replace the pen tip cover.
  • This solution provides a connection structure between the pen tip outer cover and the main shaft, which can meet product needs.
  • the pen tip cover has light-transmitting properties.
  • the outer cover of the pen tip is light-transmissive, the user can see the smooth outer peripheral surface of the inner pen tip electrode through the outer cover of the pen tip, which provides a better visual experience.
  • the outer circumferential surface of the receiving portion of the pen tip electrode includes a tapered surface
  • the pen tip electrode seen by the user through the pen tip outer cover may exhibit characteristics similar to a ballpoint pen refill.
  • the tapered surface design matches the tapered surface of the pen tip cover, the user can see that the external appearance and internal appearance of the electronic pen tend to be consistent in design texture, thus greatly improving the user experience.
  • Figure 1 is a schematic diagram of the electronic pen performing interactive input on the touch screen of the electronic device according to Embodiment 1;
  • Figure 2 is an exploded structural diagram of the electronic pen of Embodiment 1;
  • Figure 3 is a schematic three-dimensional structural diagram of the pen tip cover assembly of the electronic pen in Figure 2;
  • Figure 4 is a schematic structural diagram of the A-A cross-section of the pen tip cover assembly in Figure 3;
  • Figure 5 is a schematic three-dimensional structural diagram of the tip electrode of the electronic pen in Figure 2;
  • Figure 6 is a schematic structural diagram of the B-B cross-section of the pen tip electrode in Figure 5;
  • FIGS 7-11 are structural schematic diagrams showing the manufacturing process of the pen tip electrode shown in Figure 6;
  • Figure 12 is a schematic cross-sectional structural diagram of the electronic pen of Embodiment 1;
  • Figure 13 is a partial cross-sectional structural schematic diagram of the pen tip electrode of Embodiment 2;
  • Figure 14 is a partial cross-sectional structural schematic diagram of the pen tip electrode of Embodiment 3.
  • Figure 15 is a partial cross-sectional structural schematic diagram of the pen tip electrode of Embodiment 4.
  • Figure 16 is a schematic cross-sectional structural diagram of the pen tip electrode of Embodiment 5.
  • the terms “first”, “second”, etc. are used to distinguish different devices, components or components, and are not used to indicate or imply the relative importance of the indicated devices, components or components. and quantity. Unless otherwise stated, “plurality” means two or more.
  • Embodiments of the present application provide an electronic pen that can perform input (such as writing or drawing) on the touch screen of electronic devices such as tablets, mobile phones, notebooks, and automobiles.
  • FIG. 1 shows a user using the electronic pen 100 to A scene of inputting on the touch screen 310 of the electronic device 300 .
  • the input process of the electronic pen 100 is also the process of recognition of the electronic pen 100 by the electronic device 300 .
  • Identification can include contact position identification and pressure identification, where:
  • the contact position identification means the electronic pen 100 touches the touch screen 310, and the touch screen 310 can sense the touch operation, so that the electronic device 300 can detect the position of the touch point of the electronic pen 100 on the touch screen 310, and then The touch screen 310 is controlled to display at the contact point.
  • the electronic pen 100 may include a first electrode (which will be described below).
  • the first electrode can receive the pulse voltage sent by the control circuit in the electronic pen 100 .
  • a plurality of sensors 311 are provided in the touch screen 310 of the electronic device 300 (the sensors 311 may be arranged close to the surface of the touch screen 310 , for example).
  • the first electrode will be close to the touch screen 310.
  • the area of the touch screen 310 near the first electrode will undergo a charge accumulation effect under the action of the pulse voltage of the electrode. Accumulated charge (this phenomenon may be called charge induction) can be sensed by the sensor 311 .
  • the electronic device 300 can determine the position of the sensor 311 that senses the accumulated charge, so as to identify the contact position of the electronic pen 100 on the touch screen 310 .
  • the electronic device 300 controls the display effect of the touch screen 310 based on the pressure value.
  • the electronic device 300 can control the line thickness or color depth of graphics displayed on the touch screen 310 according to the pressure value.
  • the touch screen 310 can be controlled to display the effect of thickening lines or deepening colors; when the electronic device 300 determines that the pressure value is small, the touch screen 310 can be controlled to display thinner lines. lines or lighter colors. This design can provide users with good pressure feedback and enhance user experience.
  • the electronic pen 100 may include a second electrode (which will be described below).
  • the second electrode can also receive the pulse voltage sent by the control circuit in the electronic pen 100 to cause the touch screen 310 to generate accumulated charges.
  • Electronic equipment 300 available The charge sensing result of the second electrode and the charge sensing result of the first electrode are processed, and the processing result is sent to the electronic pen 100 .
  • the electronic pen 100 can detect the inclination angle of the electronic pen 100 relative to the touch screen 310 based on the processing result, thereby facilitating the electronic pen 100 to detect the pressure of the electronic pen 100 on the touch screen 310 .
  • the electronic pen 100 may include a pen tip cover assembly 110 , a pen tip electrode 120 , a main shaft 130 , a pressure-sensitive assembly 140 and a housing 150 .
  • FIG. 2 shows only a part of the structure of the electronic pen 100 but not the entire structure.
  • the electronic pen 100 may also include a circuit board assembly.
  • the structure shown in Figure 2 is only an example and is not intended to limit the solution of the present application.
  • the pen tip housing assembly 110 may include a pen tip housing 111 and a pen tip conductor 114 .
  • the pen tip outer cover 111 may be a rotary structure having a receiving cavity 111a.
  • the pen tip outer cover 111 is closed at one end and has an opening 111b at the other end.
  • the nib housing 111 may include a tapered nib portion 112 and a cylindrical connecting portion 113 .
  • the connecting portion 113 may be internally threaded to be threadedly connected to the spindle 130 (described below).
  • the nib housing 111 may be an insulator.
  • the pen tip outer cover 111 can have light-transmitting properties, and its light-transmitting degree can be designed as needed.
  • the structure of the pen tip outer cover 111 can be designed as needed and is not limited to the above.
  • the pen tip cover 111 may also be opaque.
  • the pen tip conductor 114 can be fixed in the receiving cavity 111 a and can be located at the tapered tip.
  • tip conductor 114 may be integral with tip portion 112 .
  • the pen tip conductor 114 has electrical conductivity.
  • the specific structure of the pen tip conductor 114 is not limited in this embodiment.
  • the pen tip conductor 114 may have a roughly mushroom head-shaped structure.
  • the pen tip electrode 120 may have a substantially rotary structure. From the inside to the outside, the pen tip electrode 120 may include a first electrode 121, an insulating material 122, a shield electrode 123, an insulating material 124, a second electrode 125, and a mating portion 126 in order.
  • the shielding electrode 123 surrounds the outer periphery of the first electrode 121 .
  • the insulating material 122 is located between the first electrode 121 and the shield electrode 123 to isolate them.
  • the second electrode 125 surrounds the outer periphery of the shield electrode 123, and the insulating material 124 is located between the shield electrode 123 and the second electrode 125 to isolate them.
  • the fitting portion 126 may cover a part of the second electrode 125 .
  • the first electrode 121 may be made of conductive material such as metal. As shown in FIG. 6 , the first electrode 121 may be a solid rod-shaped structure. Illustratively, the first electrode 121 may include a pen tip 121a, a first electrode part 121b and a second electrode part 121c connected in sequence. Both the pen tip 121a and the first electrode part 121b may have a rotary structure. The second electrode part 121c At least part of may be a rotary body structure. The diameter of the pen tip 121a may be larger than the diameter of the first electrode part 121b, and a step difference is formed between the pen tip 121a and the first electrode part 121b.
  • the diameter of the first electrode part 121b may be smaller than the diameter of the second electrode part 121c, and the first electrode part 121b and the second electrode part 121c may have a smooth transition, so that the adjacent area of the first electrode part 121b and the second electrode part 121c forms a cone. noodle.
  • the pen tip 121a and the first electrode part 121b may be shorter, and the second electrode part 121c may be longer.
  • the pen tip electrode 120 can be installed into the pen tip outer cover 111, and the pen tip 121a can be in contact with the pen tip conductor 114 (which will be described below).
  • the diameter of the pen tip 121a it is helpful to increase the electrical connection area and ensure the reliability of the electrical connection; it can also reduce the difficulty of matching between the first electrode 121 and the pen tip conductor 114, thereby improving assembly reliability and electrical connection. reliability.
  • the structure of the first electrode 121 can be designed according to actual needs and is not limited to the above.
  • the insulating material 122 may substantially surround the entire area of the first electrode 121 , and the pen tip 121 a may be exposed outside the insulating material 122 .
  • the end of the insulating material 122 away from the pen tip 121a (for example, the right end in the perspective of FIG. 6 ) can be It is substantially flush with the end of the first electrode 121 away from the pen tip 121a (for example, the right end in the perspective of FIG. 6 ).
  • the right end of the insulating material 122 may form two openings 122a, and the positions of the two openings 122a may be determined as needed, for example, arranged symmetrically up and down.
  • a local area of the second electrode portion 121c may be exposed from the opening 122a and may serve as a soldering pad for electrical connection between the first electrode 121 and the circuit board assembly of the electronic pen 100 .
  • the insulating material 122 may be, for example, insulating plastic.
  • the structure of the insulating material 122 can be designed according to actual needs and is not limited to the above.
  • the position and number of the windows 122a on the insulating material 122 can be changed and are not limited to the above.
  • the shield electrode 123 may have a cylindrical structure of revolution.
  • the shielding electrode 123 may include a connected first shielding part 123a and a second shielding part 123b.
  • the outer diameter of the first shielding part 123a may be smaller than the outer diameter of the second shielding part 123b, and there may be a smooth transition between the two.
  • the first shielding part 123a may substantially surround the entire area of the first electrode part 121b, and the pen tip 121a may be exposed outside the first shielding part 123a.
  • the second shielding part 123b may surround a part of the second electrode part 121c, and another part of the second electrode part 121c is located outside the second shielding part 123b.
  • the shielding electrode 123 is connected to the insulating material 122 .
  • the shield electrode 123 can be a conductive solid component and can be connected to the insulating material 122 through a suitable process.
  • the shield electrode 123 can be assembled on the outer periphery of the insulating material 122 first, and then an injection molding process can be used to assemble the shield electrode 123 with the insulating material 122 .
  • Materials 122 are combined into one body.
  • the shield electrode 123 may be a conductive material layer directly formed on the outer surface of the insulating material 122.
  • the shield electrode 123 may be formed on the outer surface of the insulating material 122 through laser direct structuring (LDS) technology.
  • LDS laser direct structuring
  • the meaning of entity component or entity is: a certain component is separately manufactured in advance (the manufacturing process is not limited), the certain component is matched with another component through assembly, and the certain component is not formed through an integrated molding process. on another part.
  • the shield electrode 123 is a physical component
  • the shield electrode 123 can be a metal piece that is separately manufactured in advance, and the shield electrode 123 can be assembled on the outer periphery of the insulating material 122 to match the two.
  • the shield electrode 123 is a conductive material layer directly formed on the outer surface of the insulating material 122, then such shield electrode 123 does not belong to a physical component.
  • LDS uses a special laser to engrave the designed circuit pattern on the finished plastic product, and then performs electroless plating. After a series of steps, metal areas distributed according to the circuit pattern can be formed on the plastic surface.
  • the shielding electrode 123 may also be electrically connected to the circuit board assembly of the electronic pen 100 through a soldering pad. The process of forming the soldering pad of the shielding electrode 123 will be described below.
  • the insulating material 124 can surround the entire area of the shield electrode 123 , and the insulating material 124 and the shield electrode 123 can be substantially equal in length.
  • the pen tip 121a may be exposed outside the insulating material 124.
  • the insulating material 124 may be, for example, insulating plastic. In other embodiments, the structure of the insulating material 124 can be designed according to actual needs and is not limited to the above.
  • the second electrode 125 may have a rotary body cylindrical structure.
  • the second electrode 125 may surround all of the first shielding part 123a and most of the second shielding part 123b, and another part of the second shielding part 123b may be located outside the second electrode 125.
  • the pen tip 121a may be exposed outside the second electrode 125.
  • the first electrode 121 may have the largest length
  • the shield electrode 123 may have the second longest length
  • the second electrode 125 may have the smallest length.
  • the above-mentioned length design of the three electrodes can meet product needs.
  • the right end of the first electrode 121 exceeds the shield electrode 123 and the second electrode 125, which facilitates the first electrode 121 to cooperate with the main shaft 130 and be electrically connected to the circuit board assembly of the electronic pen 100.
  • the lengths of the three electrodes can be designed as needed, and the relationship between the lengths of the three electrodes is not limited to that shown in Figure 6 .
  • the outer peripheral surface of the second electrode 125 (the outer peripheral surface refers to the peripheral surface surrounding the axis of the pen tip electrode 120 , the same below) has no step, that is, the outer peripheral surface of the second electrode 125 extends continuously without any step.
  • the stepless outer peripheral surface of the second electrode 125 may include a smooth transition surface, such as a cylindrical surface, an elliptical cylindrical surface, an arc surface, and/or a conical surface (including a conical surface and an elliptical conical surface).
  • the outer peripheral surface of the second electrode 125 shown in FIG. 6 may include a tapered surface 125a.
  • An end of the tapered surface 125a facing the pen tip 121a has a smaller outer diameter (this end of the tapered surface 125a may be referred to as a small diameter end).
  • the outer diameter of the end toward the pen tip 121a is larger, and the tapered surface 125a is a non-step outer peripheral surface.
  • the stepless outer peripheral surface of the second electrode 125 may also include a non-smooth transition surface, and the non-smooth transition surface has a shape mutation.
  • Each shape mutation is formed by two connected sub-surfaces that form an obvious intersection line, wherein one sub-surface can be tilted relative to the other sub-surface along the radial direction of the pen tip electrode 120 , and the two sub-surfaces have an obvious intersection line. Moreover, there is only one intersection line between two connected sub-surfaces.
  • a cross-section is made through the intersection line, and the cross-section intersects with the two sub-surfaces respectively to obtain two cross-section lines. The two cross-section lines are coincident. For example, as shown in FIG.
  • the outer peripheral surface of the second electrode 125 may include a sub-surface 125b (for example, a cylindrical surface) and a sub-surface 125a (ie, a tapered surface 125a).
  • the sub-surface 125a is inclined relative to the sub-surface 125b, and the inclination direction of the sub-surface 125a is In the radial direction of the pen tip electrode 120, the sub-surface 125a and the sub-surface 125b form a sudden change in shape, so the sub-surface 125a and the sub-surface 125b can form the above-mentioned non-smooth transition surface.
  • the sub-surface 125b and the sub-surface 125a have an intersection line, and the intersection line is a circle.
  • a cross-section is made through the intersection line.
  • the cross-section intersects with the sub-surface 125b to obtain a circular cross-section line.
  • the cross-section intersects with the sub-surface 125a and obtains a circular cross-sectional line.
  • the two circular cross-sectional lines are coincident.
  • the entire outer peripheral surface of the second electrode 125 is a non-stepped outer peripheral surface, and the outer peripheral surface of the second electrode 125 is a non-smooth transition surface as a whole.
  • the pen tip electrode 120 may include a receiving part 120a, and the receiving part 120a may include a part of the first electrode 121, a part of the shielding electrode 123, and a part of the second electrode 125. and part of the insulating material between the above three electrodes.
  • the outer peripheral surface of the receiving portion 120a is also the outer peripheral surface of the second electrode 125.
  • the outer peripheral surface of the receiving portion 120a includes a tapered surface 125a. The entire outer peripheral surface of the accommodating portion 120a has no step.
  • the receiving portion 120 a can be received in the pen tip portion 112 of the pen tip outer cover 111 , and the user can see the receiving portion 120 a through the pen tip portion 112 .
  • Peripheral surface Since the outer peripheral surface of the receiving portion 120a is smooth, a uniform visual effect can be created under the appearance of a transparent pen tip.
  • the user can see the cone surface 125a, and the slope of the cone surface 125a can be substantially consistent with the slope of the outer surface of the pen tip portion 112, so that a neat and consistent visual experience can be created under the appearance of a transparent pen tip.
  • the relationship between the tapered surface 125a and the slope of the outer surface of the pen tip portion 112 may not be limited.
  • the second electrode 125 is connected to the insulating material 124 .
  • the second electrode 125 can be a conductive solid component and can be connected to the insulating material 124 through a suitable process.
  • the second electrode 125 can be assembled on the outer periphery of the insulating material 124 first, and then the second electrode can be assembled using an injection molding process.
  • 125 is integrated with the insulating material 124.
  • the second electrode 125 may be a conductive material layer directly formed on the outer surface of the insulating material 124.
  • the second electrode 125 may be formed on the outer surface of the insulating material 124 through laser direct structuring (LDS) technology.
  • LDS laser direct structuring
  • the second electrode 125 may also be electrically connected to the circuit board assembly of the electronic pen 100 through a solder pad. The process of forming the solder pad of the second electrode 125 will be described below.
  • the first electrode part 121 b and the second electrode part 121 c are made to transition from a small diameter to a large diameter, so as to facilitate the transition between the first electrode part 121 b and the second electrode part 121 c.
  • the first shielding part 123a and the second shielding part 123b are also made to transition from a small outer diameter to a large outer diameter.
  • the advantage of this structure is that it can ensure the thickness of the insulating material 122 between the first electrode part 121b and the first shielding part 123a, thereby helping to avoid short circuit between the first electrode part 121b and the first shielding part 123a; it can ensure the first
  • the thickness of the insulating material 124 between the shielding part 123a and the second electrode 125 is beneficial to avoid short circuit between the first shielding part 123a and the second electrode 125.
  • the fitting portion 126 may cover an end of the second electrode 125 away from the pen tip 121 a.
  • Cooperation Department 126 The length may be greater than the length of the portion of the second electrode 125 it covers.
  • the fitting portion 126 is non-conductive and can be made of plastic, for example. The fitting portion 126 is used to cooperate with the main shaft 130 (the description will be continued below).
  • the first electrode 121, the shield electrode 123, and the second electrode 125 may include a stacked electrode core and a conductive shielding layer, and the conductive shielding layer is wrapped around the outer periphery of the electrode core.
  • the electrode core is a conductor, and may be metal, for example.
  • the conductive shielding layer has shielding properties.
  • the conductive shielding layer includes but is not limited to conductive materials such as metals, and may also include non-metallic conductive materials such as carbon and graphene. Both the electrode core and the conductive shielding layer have conductive properties, but they are made of different materials, have different dielectric constants (or capacitive reactance), and have different properties such as absorption of electromagnetic waves.
  • the conductive shielding layer can enhance the signal shielding effect and optimize signal interference between each electrode.
  • the above-mentioned electrodes with a stacked structure can be manufactured through appropriate processes, for example, each of the above-mentioned electrodes can be manufactured through material wrapping and/or LDS processes. It is understood that an electrode design with a stacked structure is not required.
  • the pen tip electrode 120 may have an integrated structure, that is, each electrode in the pen tip electrode 120, the pads of each electrode, the insulating material and the mating portion 126 are all connected into one body. The manufacturing process of the integrated pen tip electrode 120 will be described below with reference to FIGS. 7-11.
  • the first electrode 121 can be manufactured. Then, the outer surface of the first electrode 121 can be covered with an insulating material 122 through an injection molding process.
  • the insulating material 122 can be made to have the same length as the first electrode 121, and one end of the first electrode 121 facing away from the pen tip 121a (this end can be called The two areas (referred to as the connection ends) are not covered by the insulating material 122, thus forming two openings 122a.
  • the local area of the first electrode 121 defined by the two openings 122a serves as the pad of the first electrode 121.
  • a conductive material layer may be formed on the outer surface of the insulating material 122 through an LDS process, and the conductive material layer serves as the shield electrode 123 .
  • the outer surface of the shield electrode 123 can be covered with an insulating material 124 through an injection molding process, and the insulating material 124 and the shield electrode 123 can be made to have the same length.
  • the physical second electrode 125 may be pre-fixed to the outer surface of the insulating material 124 .
  • the outer surface of the second electrode 125 and the outer surface of the insulating material 124 can be covered with an insulating material through an injection molding process to form the mating portion 126 .
  • a channel 126 a may be formed between the formed fitting portion 126 and the insulating material 124 to form the bonding pad of the second electrode 125 .
  • the conductive material 128 a can be formed in the channel 126 a, and the conductive material 128 b can be covered on the outer surface of the insulating material 122 located outside the channel 126 a, and the conductive material 128 b and the conductive material 128 a (the conductive material 128 b and the conductive material 128a can be collectively referred to as the second electrode conductive portion) connection.
  • the conductive material 128b may serve as a pad for the second electrode 125 (hereinafter referred to as the pad 128b).
  • the conductive material 128a and the conductive material 128b may be the same material, for example.
  • the conductive material 128a and the conductive material 128b can be formed through an LDS process.
  • the second electrode 125 is a solid component, manufacturing the channel 126a can reliably connect the conductive material 128a formed by LDS to the second electrode 125.
  • the right end of the second electrode 125 can be extended until it is substantially flush with one end of the insulating material 124, and then the conductive material 128b is manufactured on the outer surface of the insulating material 122 through the LDS process, and the conductive material 128b is connected to the outer surface of the insulating material 122. The right end of the second electrode 125 is connected.
  • FIG. 10 shows a schematic diagram of a pad on which shield electrode 123 is formed.
  • the cross-sectional plane in Fig. 10 is different from the cross-sectional plane in Fig. 8(b) and the cross-sectional plane in Fig. 8(a), so the channel 126a and the window 122a are not shown in Fig. 10.
  • a conductive material 127 also called a shield electrode conductive portion
  • the bonding pad 127 can be formed through an LDS process.
  • only one bonding pad 127 may be formed, or several bonding pads 127 may be formed as needed.
  • FIG. 11 illustrates the relative positional relationship between the pads 121d of the first electrode 121 (only one of the pads 121d is shown), the pads 127 of the shield electrode 123, and the pads 128b of the second electrode 125 in a top view.
  • the bonding pads 127 and 128b may be distributed side by side on the outer surface of the insulating material 122 , and the bonding pads 127 , 128b and 121d are spaced apart from each other.
  • the above-mentioned soldering pad may be electrically connected to the circuit board assembly of the electronic pen 100 through, for example, a flexible circuit board or a wire, so that the pen tip electrode 120 can be powered on.
  • the shield electrode 123 is formed by LDS
  • the second electrode 125 is a physical component
  • the bonding pad 127 and the bonding pad 128b are both formed by LDS.
  • the shield electrode 123, the second electrode 125, the bonding pad 127 and the bonding pad 128b can be manufactured in any suitable manner.
  • the shield electrode 123 can also be a physical component.
  • the physical shield electrode 123 can be pre-fixed to the outer surface of the insulating material 122 , and then the insulating material 124 is formed on the shield electrode 123 through an injection molding process.
  • the bonding pad 127 can also be formed on the outer surface of the insulating material 122 through an LDS process.
  • a physical pad 127 may be provided on the outer surface of the insulating material 122 .
  • the second electrode 125 may also be formed on the outer surface of the insulating material 124 through an LDS process.
  • the second electrode 125 formed by LDS can be longer, for example, its length can be substantially equal to the length of the second electrode 125 shown in Figure 9 plus the length of the conductive material 128a (subsequently formed by LDS).
  • the conductive material 128b is formed to form the pad of the second electrode 125), or the length of the second electrode 125 is substantially equal to the length of the conductive material 128a plus the length of the conductive material 128b (there is no need to additionally manufacture the pad of the second electrode 125, the conductive material Part 128b serves as the pad of the second electrode 125).
  • the fitting portion 126 is directly formed on the outer surface of the second electrode 125, and the channel 126a is no longer formed.
  • the second electrode 125 is a physical component
  • the pad of the second electrode 125 is also a physical component.
  • the second electrode 125 and its pad can be pre-fixed to the outer surface of the insulating material 124 at the same time, and the second electrode 125 and its pad can be connected, and then the second electrode 125 and its pad can be formed on the second electrode 125 and its pad through an injection molding process.
  • the outer surface of the disk forms a mating portion 126 . In this version, channel 126a is no longer formed.
  • the first electrode 121 may be a physical component.
  • the shield electrode 123 can be a physical component, or can be manufactured using an integrated process such as LDS.
  • the second electrode 125 may be a physical component, or may be manufactured using an integrated process such as LDS. It can be understood that the manufacturing processes of the shield electrode 123, the second electrode 125, the bonding pad 127 and the bonding pad 128b described above can be combined according to product requirements.
  • FIG. 12 shows the internal assembly structure of the electronic pen 100 in the form of a partial cross-sectional view, where the cross-section in FIG. 12 is the same as the cross-section B-B in FIG. 5 .
  • the pen tip electrode 120 , the pen tip outer cover 111 and the main shaft 130 cooperate with each other.
  • the left end of the main shaft 130 can be in a cylindrical structure, and the left end can be installed into the connecting part 113 and form a threaded fit with the connecting part 113 .
  • a portion of tip electrode 120 may be mounted within tip portion 112 and tip 121a may be in contact with tip conductor 114 .
  • Another part of the pen tip electrode 120 can be accommodated in the cylindrical structure at the left end of the main shaft 130 , wherein the fitting portion 126 can be in contact with the inner wall of the cylindrical structure.
  • the two ends of the pen tip electrode 120 are respectively limited by the pen tip cover assembly 110 and the main shaft 130, so that the pen tip electrode 120 can be reliably fixed.
  • the connecting part 113 and the main shaft 130 are both accommodated in the housing 150 .
  • the pressure sensing component 140 can be located in the housing 150 and fixed on the main shaft 130 .
  • the circuit board assembly of the electronic pen 100 can be installed in the housing 150 .
  • the soldering pad 121d of the first electrode 121, the soldering pad of the shielding electrode 123, and the soldering pad of the second electrode 125 can all be electrically connected to the circuit board assembly.
  • the pen tip electrode 120 can be energized and operated.
  • the first electrode 121 can be used to realize contact recognition.
  • the pressure-sensitive component 140 is also electrically connected to the circuit board component.
  • the squeezing of the electronic pen 100 by the touch screen can be transmitted to the pressure-sensitive component 140 through the pen tip conductor 114, the pen tip electrode 120, and the main shaft 130.
  • the pressure-sensitive component 140 can sense squeezing and generate corresponding electrical signals.
  • the pressure sensitive component 140, the first electrode 121 and the The two electrodes 125 work together to enable the electronic pen 100 to realize pressure recognition.
  • the right end of the first electrode 121 exceeds the fitting portion 126 , the second electrode 125 and the shielding electrode 123 , so that the right end of the pen tip electrode 120 forms a ladder structure.
  • This structure may be designed based on the following requirements: making the right end of the first electrode 121 longer can facilitate the connection between the first electrode 121 and other structures (such as the circuit board assembly).
  • the reason why the second electrode 125 is shorter is because its effective part is a tapered part and does not need to be substantially the same length as the first electrode 121 .
  • making the second electrode 125 and the mating portion 126 shorter can avoid the mating portion 126 from occupying more space and excessively weakening the structural strength of the spindle 130 .
  • the shield electrode 123 serves to isolate the second electrode 125 from the first electrode 121, and does not need to be the same length as the first electrode 121.
  • the receiving part 120 a serves as the only appearance part of this part of the pen tip electrode 120 , the receiving part 120 a has a complete, concise and consistent appearance (only the second electrode will be present).
  • the color and texture of 125 will not have the color and texture of other parts), and there will be no step difference in appearance.
  • this part presents a smooth transitional appearance without obvious step-like steps, so that the pen tip electrode 120 can present characteristics similar to a ballpoint pen refill, and has a better appearance effect. (Components located inside the electronic pen 100 may also have appearance design requirements).
  • the user can see the pen tip portion 112 through the pen tip portion 112 and experience a product texture that is simple, neat, and similar to a ballpoint pen refill. If the slopes of the conical surface of the second electrode 125 and the conical surface of the pen tip portion 112 are similar, the external appearance and the internal appearance of the electronic pen 100 can be made consistent, creating a good design quality.
  • a material layer may also be formed on the outer surface of the second electrode 125, and the material layer has the texture.
  • the material layer can be formed on the outer surface of the second electrode 125 through a process such as spraying or sputtering.
  • the shield electrode 123 can Completely isolating the signal interference between the second electrode 125 and the first electrode 121 can ensure the electrical performance of the pen tip electrode 120 .
  • the pen tip electrode 120 may have an integrated structure, so that there is no fitting gap between the electrodes.
  • the integrated structure can also reduce the difficulty of assembling the pen tip electrode 120 in the electronic pen 100 and improve the mass production of the electronic pen 100.
  • the integrated structure makes the first electrode 121, the shielding electrode 123 and the second electrode 125 have a higher coaxiality, which is beneficial to ensuring consistent performance of the electronic pen 100 when used at various angles, thereby ensuring user experience.
  • the coaxiality of the tip electrode 120 can be greatly improved.
  • the first electrode 121 is a solid component with high structural strength, when the electronic pen 100 falls or is impacted, the first electrode 121 and the entire pen tip electrode 120 are not easily broken, making the electronic pen 100 highly reliable. , the user experience is better.
  • the pen tip outer cover assembly 110 and the main shaft 130 form a detachable threaded connection, and the pen tip outer cover assembly 110 can be detached from the electronic pen 100 .
  • the user can disassemble it and then install a new pen tip outer cover assembly 110, thereby ensuring the use experience.
  • part of the second electrode 125 can be installed into the main shaft 130, which can reduce or even eliminate the stress concentration between the second electrode 125 and the main shaft 130, which is beneficial to ensuring that the pen tip electrode 120 and the entire The reliability of the electronic pen 100.
  • FIG. 13 shows a partial cross-sectional structure of the pen tip electrode 220 in another solution.
  • the pen tip electrode 220 may include a first electrode 221, a shield electrode 223 and a second Electrode 225.
  • the pen tip electrode 220 may include a receiving portion 220a.
  • the receiving part 220a may include a part of the first electrode 221, a part of the shielding electrode 223, a part of the second electrode 225, and part of the insulating material between the above three electrodes.
  • the outer peripheral surface of the receiving portion 220a is also the outer peripheral surface of the second electrode 225.
  • the outer peripheral surface of the receiving portion 220a includes a tapered surface 225a.
  • the entire outer peripheral surface of the accommodating portion 220a has no step.
  • the diameter of the first electrode 221 is substantially constant everywhere.
  • the first electrode 221 may include a pen tip 221 a exposed outside the shielding electrode 223 , and a shielded electrode 223
  • the diameters of the wrapped main body part 221b, the pen tip 221a and the main body part 221b can be substantially consistent.
  • the first electrode 221 since the left end of the first electrode 221 (for contacting the pen tip conductor) is thicker, on the premise that the contact area with the pen tip conductor can be ensured, the first electrode 221 may not have the pen tip 221a and only retain the main body. part 221b (or the main part 221b is the first electrode 221), and the end surface of the main part 221b is directly in contact with the pen tip conductor.
  • the outer diameter of the shield electrode 223 is substantially constant everywhere.
  • the shield electrode 223 surrounds the end surface of the main body portion 221b.
  • the tip electrode 220 may adopt the following manufacturing process: wrapping an insulating film 222 on the outer peripheral surface of the first electrode 221 , which is also an insulating material wrapping the outer peripheral surface of the first electrode 221 (corresponding to the above-mentioned insulating material 122 ).
  • the thickness of the insulating film 222 is small.
  • the shield electrode 223 can be formed on the outer peripheral surface of the insulating film 222 through processes such as spraying, sputtering, and evaporation.
  • the distance between the portion of the first electrode 221 near the pen tip 221a and the shielding electrode 223 can be smaller. It can fit into a smaller structural space at the end of the pen tip electrode 220 close to the pen tip conductor.
  • FIG. 14 shows a partial cross-sectional structure of the pen tip electrode 320 in another embodiment.
  • the pen tip electrode 320 may include a first electrode 321 , a shielding electrode 323 and a second electrode 325 .
  • the first electrode 321 may include a pen tip 321a and a main body portion 321b.
  • the first electrode 321 (used to contact the pen tip conductor) is thick, on the premise that the contact area with the pen tip conductor can be ensured, the first electrode 321 can also have no pen tip 321a and only retain the main body portion 321b (or the main body portion 321b That is, the first electrode 321), the end surface of the main body portion 321b is in direct contact with the pen tip conductor.
  • the pen tip electrode 320 may include a receiving portion 320a.
  • the receiving part 320a may include a part of the first electrode 321, a part of the shielding electrode 323, a part of the second electrode 325, and part of the insulating material between the above three electrodes.
  • the outer peripheral surface of the receiving portion 320a is also the outer peripheral surface of the second electrode 325.
  • the outer peripheral surface of the receiving portion 320a includes a tapered surface 325a.
  • the entire outer peripheral surface of the accommodating portion 320a has no step.
  • the shielding electrode 323 does not extend to the left to the left end of the main body 321b, so that A partial area of the main body portion 321 b and a partial area of the second electrode 325 are not isolated by the shield electrode 323 .
  • the shield electrode 323 may be a solid component, and its thickness is usually relatively large. Since the entire left end of the tip electrode 320 is thin, by keeping the left end of the shielding electrode 323 away from the thin area at the left end of the tip electrode 320, the thickness of the insulating material at the left end of the tip electrode 320 can be prevented from being too small, thereby avoiding electrode short circuit.
  • FIG. 15 shows a partial cross-sectional structure of the pen tip electrode 420 in another embodiment.
  • the pen tip electrode 420 may include a first electrode 421 , a shield electrode 423 and a second electrode 425 from the inside out.
  • the first electrode 421 may include a pen tip 421a and a main body portion 421b. Since the left end of the first electrode 421 (for contacting the pen tip conductor) is thicker, on the premise that the contact area with the pen tip conductor can be ensured, the first electrode 421 can also have no pen tip 421a and only retain the main body portion 421b (or main body). Part 421b is the first electrode 421), and the end surface of the main body part 421b is in direct contact with the pen tip conductor.
  • the outer peripheral surface of the second electrode 425 may include a tapered surface 425a.
  • the left end of the second electrode 425 can be substantially flush with the left end of the shield electrode 423 , that is, the second electrode 425 does not extend to the left to the left end of the main body 421 b .
  • the pen tip electric The pole 420 may also include an appearance piece 426.
  • the appearance piece 426 may be basically a rotary body cylindrical structure.
  • the appearance piece 426 is located between the pen tip 421a and the second electrode 425.
  • the appearance piece 426 surrounds the main body 421b, and the appearance piece 426 is connected to the main body 421b.
  • the outer peripheral surface of the appearance piece 426 and the outer peripheral surface of the second electrode 425 both serve as the outer peripheral surface of the receiving portion 420 a of the pen tip electrode 420 .
  • the outer peripheral surface of the housing portion 420a has no step.
  • the appearance part 426 is not electrically connected to the circuit board assembly, and the appearance part 426 is not used as an electrode.
  • the appearance piece 426 and the second electrode 425 can be made to have a consistent color and texture, so that when the pen tip electrode 420 is installed in the translucent pen tip cover, the user can see that the pen tip electrode 420 has a basically consistent appearance and texture, and there is basically no color difference. .
  • FIG. 16 shows a partial cross-sectional structure of the pen tip electrode 520 in another embodiment.
  • the pen tip electrode 520 may include a first electrode 521, a shielding electrode 523 and a second electrode. 525.
  • the left end surface of the first electrode 521 shown in FIG. 16 may be in contact with the pen tip conductor, or the left end of the first electrode 521 may be exposed and in contact with the pen tip conductor.
  • the outer surface of the second electrode 525 includes a tapered surface 525a.
  • the shielding electrode 523 may include a connected first shielding part 523a and a second shielding part 523b.
  • the first shielding part 523a is close to the left end surface of the first electrode 521, and the second shielding part 523b is away from the left end surface.
  • the outer surface of the first shield portion 523a includes a tapered surface 523c.
  • the outer diameter of the second shield portion 523b may be substantially constant.
  • the second electrode 525 surrounds the second shield portion 523b.
  • the outer peripheral surface of the receiving portion 520a of the pen tip electrode 520 may include the outer peripheral surface of the first shielding portion 523a and the outer peripheral surface of the second electrode 525. The entire outer peripheral surface of the accommodating portion 520a has no step.
  • the generatrices of the cone surface 525a and the cone surface 523c can be substantially collinear, that is, in the perspective of Figure 16, the slopes of the cone surface 525a and the cone surface 523c are basically the same. Since the slopes of the cone surface 525a and the cone surface 523c can be basically the same, the pen tip electrode 520 can have a smooth transition appearance without obvious step-like steps, so that the pen tip electrode 520 can present characteristics similar to a ballpoint pen refill, with Better appearance (parts located inside the electronic pen can also have appearance design requirements). When the pen tip electrode 520 is installed in the translucent pen tip cover, the user can experience a product texture that is simple, neat, and similar to a ballpoint pen refill.
  • the slopes of the tapered surface of the first shielding part 523a, the tapered surface of the second electrode 525, and the tapered surface of the pen tip cover are similar, the external appearance and the internal appearance of the electronic pen can be made consistent, creating a good design quality.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

La présente invention concerne une électrode de pointe de stylo d'un stylo électronique, qui comprend une première électrode, une électrode de blindage et une seconde électrode ; l'électrode de blindage entoure la périphérie de la première électrode ; la seconde électrode entoure la périphérie de l'électrode de blindage ; une paire quelconque parmi la première électrode, l'électrode de blindage et la seconde électrode est séparée par un matériau isolant ; l'électrode de pointe de stylo est pourvue d'une partie reçue ; la partie reçue est utilisée pour être logée dans un couvercle externe de pointe de stylo du stylo électronique, une extrémité de la partie reçue est utilisée pour être en contact avec un conducteur de pointe de stylo du stylo électronique, et l'autre extrémité de la partie reçue est utilisée pour faire face à une ouverture du couvercle externe de pointe de stylo ; aucune irrégularité étagée n'est présente sur la partie reçue ; et au moins une partie d'une surface périphérique externe de la partie reçue est formée à partir d'une surface périphérique externe de la seconde électrode. La présente invention concerne en outre un stylo électronique comprenant l'électrode de pointe de stylo. La solution de la présente invention peut améliorer l'expérience de produit.
PCT/CN2023/080326 2022-03-11 2023-03-08 Électrode de pointe de stylo et stylo électronique WO2023169476A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202210235198 2022-03-11
CN202210235198.6 2022-03-11
CN202210824752.4 2022-07-14
CN202210824752.4A CN116774840A (zh) 2022-03-11 2022-07-14 笔尖电极和电子笔

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WO2023169476A1 true WO2023169476A1 (fr) 2023-09-14

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CN105975109A (zh) * 2016-05-20 2016-09-28 汉王科技股份有限公司 主动电容笔及其姿态检测方法、电容式触控屏与触控系统
CN106249922A (zh) * 2016-08-12 2016-12-21 京东方科技集团股份有限公司 一种触控笔
CN209590794U (zh) * 2019-04-08 2019-11-05 深圳市千分一智能技术有限公司 一种主动式电容笔及其笔尖
US20210405819A1 (en) * 2020-06-26 2021-12-30 Samsung Display Co., Ltd. Electronic device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105975109A (zh) * 2016-05-20 2016-09-28 汉王科技股份有限公司 主动电容笔及其姿态检测方法、电容式触控屏与触控系统
CN106249922A (zh) * 2016-08-12 2016-12-21 京东方科技集团股份有限公司 一种触控笔
CN209590794U (zh) * 2019-04-08 2019-11-05 深圳市千分一智能技术有限公司 一种主动式电容笔及其笔尖
US20210405819A1 (en) * 2020-06-26 2021-12-30 Samsung Display Co., Ltd. Electronic device

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