A capacitive stylus

Abstract

The utility model relates to the technical field of capacitor pen, specifically relates to a capacitor pen, including pen holder and cap, be provided with battery and circuit board in pen holder, be provided with charging interface on circuit board, the surface of pen holder is opened with charging hole correspondingly, charging interface is exposed to pen holder outside through charging hole, the one end of pen holder is equipped with guide slot, the cap is equipped with guide piece correspondingly, guide piece is removably arranged in guide slot, to drive cap to move to pen holder to hide charging interface, one end of circuit board is equipped with FPC board, is equipped with button on FPC board, the cap is equipped with the pressing part with it cooperation, when cap moves relative to pen holder, can drive FPC board to bend or stretch out, the scheme utilizes the internal cavity of cap to accommodate button, need not to open the installation space for button extra, give play to the light and thin portability of capacitor pen simultaneously, FPC board is bent or stretched out along the axial direction of pen holder, cooperate the compact guide design of guide slot and guide piece, effectively utilize cap moving stroke space, reduce the overall volume of capacitor pen.

Description

Technical Field

[0001] This utility model relates to the field of capacitive pen technology, specifically to a capacitive pen. Background Technology

[0002] Currently, capacitive pens are a common accessory for smart terminals, and their structural design needs to balance functionality and user experience. Conventional capacitive pens have their charging ports located on the outside of the pen body, which is detrimental to dust and water resistance during use, affecting device reliability. To improve the dust and water resistance of capacitive pens, capacitive pens with movable caps have emerged on the market. These caps are placed at one end of the pen body, and the charging port is hidden or revealed by moving the cap relative to the pen body. While this design solves the dust and water resistance problem, it increases the overall size of the pen to accommodate the cap's movement and the internal fitting structure, sacrificing the product's slimness and portability. Furthermore, the internal cavity of the movable cap and the reserved space within the pen body for the cap's movement are not effectively utilized, resulting in structural redundancy and making it difficult to balance functional upgrades with space utilization.

[0003] Therefore, designing a capacitive pen with a movable cap and more efficient space utilization, and a smaller size, is of great importance to those skilled in the art. Utility Model Content

[0004] This utility model provides a capacitive pen with a movable cap and a more efficient and smaller space structure, which solves the problem in the prior art where the internal cavity of the movable cap and the reserved space inside the pen barrel for the cap to move are not effectively utilized, resulting in structural redundancy and difficulty in balancing functional upgrades and space utilization.

[0005] This utility model discloses a capacitive pen, which includes: a pen barrel and a pen cap. A battery and a circuit board are disposed inside the pen barrel. The battery is electrically connected to the circuit board. A charging interface is disposed on the circuit board. A charging hole is correspondingly opened on the surface of the pen barrel. The charging interface is exposed outside the pen barrel through the charging hole. A guide groove is also provided on the inner side of the pen barrel near the pen cap. A guide member is provided on the end of the pen cap near the pen barrel. The guide member is movably disposed in the guide groove. The guide member moves along the guide groove toward the inside of the pen barrel, which can drive the pen cap to move toward the pen barrel and be sleeved on one end of the pen barrel, so as to hide the charging interface inside the pen cap. The circuit board is provided with an FPC board at one end near the pen cap. One end of the FPC board is electrically connected to the circuit board, and the other end of the FPC board is provided with a button. The pen cap is provided with a pressing part that cooperates with the button at the end away from the pen barrel. The button is fixed to the pressing part. The movement of the pen cap relative to the pen barrel can drive the button to move and cause the FPC board to bend or stretch.

[0006] Optionally, the pen cap is provided with a mounting member, and one end of the mounting member near the pressing part is provided with a fixing part for fixing the button. The other end of the mounting member is provided with a guide baffle for limiting the bending path of the FPC board when the pen cap moves toward the pen barrel.

[0007] Optionally, the guide baffle includes a flat section and a curved section, one end of the flat section is connected to the fixing part, and the curved section is disposed at the other end of the flat section and bends toward the circuit board.

[0008] Optionally, a bracket is provided inside the pen barrel, and the battery and the circuit board are both disposed on the bracket, with the FPC board extending outward toward the end of the bracket near the pen cap.

[0009] Optionally, the bracket is further provided with a partition plate at one end near the pen cap to separate the FPC board and the circuit board.

[0010] Optionally, the guide is provided with a first magnetic element, and the bracket is provided with a second magnetic element, wherein the first magnetic element and the second magnetic element repel each other.

[0011] Optionally, the pen barrel further includes an outer shell and an inner shell. The inner shell is disposed at one end of the outer shell near the pen cap. A first end of the inner shell is fixed inside the outer shell, and a second end of the inner shell is exposed outside the outer shell. The charging hole and the guide groove are both disposed at the second end of the inner shell. When the guide moves along the guide groove toward the inside of the pen barrel, it can drive the pen cap to move toward the pen barrel and be fitted onto the second end of the inner shell.

[0012] Optionally, a buzzer is also provided on the circuit board.

[0013] Optionally, the end of the pen barrel away from the pen cap is further provided with a pen tip, which is electrically connected to the circuit board.

[0014] Optionally, the guide member and the mounting member are integrally formed.

[0015] The beneficial effects of this utility model are as follows: By designing a capacitive pen, integrating the button with the FPC board and directly fixing the button to the pressing part of the pen cap, the number of components such as the reset spring and limiting structure required by traditional housing buttons is reduced, thus reducing assembly steps and helping to lower production and assembly costs. By integrating the button into the pen cap, the originally unused cavity inside the pen cap is used to accommodate the button, eliminating the need for additional installation space for the button and ensuring the thinness and portability of the capacitive pen. At the same time, the FPC board is bent or stretched along the pen shaft axis, and the compact guiding design of the guide groove and guide component not only makes the charging interface waterproof and dustproof, but also effectively utilizes the pen cap's movement space, reducing the overall size of the capacitive pen. Furthermore, the FPC board's adaptation to the pen cap's movement space can avoid circuit pulling failures and extend the device's service life. Attached Figure Description

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is a schematic diagram of the capacitive pen structure in an embodiment of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the capacitive pen structure in an embodiment of this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the pen barrel structure in an embodiment of this utility model; Figure 4 This is a schematic diagram of the pen cap structure in an embodiment of this utility model; Figure 5 This is a cross-sectional view of the capped cap of the capping pen in the embodiment of this utility model. Figure 6 This is a partial cross-sectional view of the capacitive pen in an embodiment of this utility model; Figure 7 This is an exploded view of the capacitive pen in an embodiment of this utility model; Figure 8 This is a cross-sectional view of the capped cap of the capping pen in an embodiment of this utility model.

[0017] The labels for the attached figures are as follows: 1. Pen barrel; 2. Pen cap; 11. Battery; 12. Circuit board; 121. Charging interface; 13. Charging hole; 14. Guide groove; 21. Guide component; 122. FPC board; 1221. Button; 22. Pressing part; 23. Mounting component; 231. Fixing part; 232. Guide baffle; 2321. Flat section; 2322. Bending section; 3. Bracket; 31. Dividing baffle; 211. First magnetic component; 33. Second magnetic component; 101. Outer shell; 102. Inner shell; 123. Buzzer; 4. Pen tip. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0019] like Figures 1 to 7 As shown, this utility model provides a specific embodiment of a capacitive pen.

[0020] A capacitive pen, reference Figures 1 to 3 The capacitive pen includes a pen barrel 1 and a pen cap 2. A battery 11 and a circuit board 12 are disposed inside the pen barrel 1. The battery 11 is electrically connected to the circuit board 12. A charging interface 121 is disposed on the circuit board 12. A charging hole 13 is correspondingly opened on the surface of the pen barrel 1. The charging interface 121 is exposed outside the pen barrel 1 through the charging hole 13. A guide groove 14 is also disposed on the inner side of the end of the pen barrel 1 near the pen cap 2. A guide member 21 is disposed on the end of the pen cap 2 near the pen barrel 1. The guide member 21 is movably disposed in the guide groove 14. When the guide member 21 moves along the guide groove 14 toward the inside of the pen barrel 1, it can drive the pen cap 2 toward the pen barrel 1 and fit onto one end of the pen barrel 1, so as to hide the charging interface 121 inside the pen cap 2. Among them, the end of the circuit board 12 near the pen cap 2 is also provided with an FPC board 122. One end of the FPC board 122 is electrically connected to the circuit board 12, and the other end of the FPC board 122 is provided with a button 1221. The end of the pen cap 2 away from the pen barrel 1 is provided with a pressing part 22 that cooperates with the button 1221. The button 1221 is fixed to the pressing part 22. When the pen cap 2 moves relative to the pen barrel 1, it can drive the FPC board 122 to bend or stretch.

[0021] Specifically, refer to Figures 1 to 3The pen body 1 serves as the main support structure for the capacitive pen, with an internal cavity for housing core components, specifically including a battery 11 and a circuit board 12. The battery 11 provides power to the capacitive pen, while the circuit board 12 is the control core, handling power management and signal processing. The battery 11 and circuit board 12 are electrically connected via wires or soldering to ensure stable power transmission. A charging interface 121 is integrated on the circuit board 12, and a charging hole 13 is provided on the surface of the pen body 1 corresponding to the charging interface 121. The charging interface 121 is exposed on the outside of the pen body 1 through the charging hole 13 for convenient charging when needed. When charging, insert the charging cable. The charging interface 121 can be a Type-C interface, which features reversible insertion, fast transmission speed, and strong universality; it can also be a Micro-USB interface, which is lower in cost and widely compatible; or it can be a Lightning interface, which is suitable for Apple ecosystem devices. It should be noted that the charging interface 121 can also be replaced by a magnetic charging interface 121, which connects for charging via magnetic attraction, eliminating the need for plugging and unplugging, making operation convenient and reducing wear and tear on the physical interface; when using the magnetic charging interface 121, there is no need to open a charging hole 13 on the pen 1.

[0022] Furthermore, a guide groove 14 is provided axially on the inner side of the end of the pen barrel 1 near the pen cap 2, and a guide member 21 is correspondingly provided on the inner side of the end of the pen barrel 1 near the pen barrel 1. The guide member 21 can be a raised slider. The guide member 21 is slidably embedded in the guide groove 14. The guide groove 14 and the guide member 21 cooperate to form a moving guide mechanism for the pen cap 2, so as to limit the pen cap 2 to move only along the axial direction of the pen barrel 1, and avoid the pen cap 2 from deviating or getting stuck during the movement.

[0023] Furthermore, an FPC board 122, i.e., a flexible circuit board 12, is electrically connected to the end of the circuit board 12 near the pen cap 2 via soldering or a connector. The FPC board 122 has good flexibility and bendability. A button 1221 is integrated at the end away from the circuit board 12. The button 1221 is the power switch of the capacitive pen and is used to control the device's wake-up and sleep modes. A pressing part 22 that cooperates with the button 1221 is provided on the inner side of the end of the pen cap 2 away from the pen barrel 1. The button 1221 is fixed to the pressing part 22 by adhesive or snap-fit, so that the button 1221 and the pen cap 2 form a synchronously moving whole. At the same time, the pressing part 22 can be made of an elastic material, such as silicone, to ensure good feedback during pressing.

[0024] The FPC board 122 is designed to accommodate the length of the pen cap 2 as it moves, ensuring that the circuit will not be pulled or broken during movement and maintaining a stable electrical connection between the button 1221 and the circuit board 12.

[0025] In normal use, when the charging interface 121 is hidden, the guide 21 is located at the end of the guide groove 14 near the pen body 1 and away from the pen cap 2. This allows the pen cap 2 to be fitted onto the end of the pen body 1 near the charging port 13, completely enclosing the charging interface 121 inside the pen cap 2 for waterproof and dustproof protection. The button 1221 is fixed to the end of the pen cap 2 along with the pressing part 22. The user can directly press the pressing part 22 and trigger the button 1221 to turn the capacitive pen on or off. At this time, the FPC board 122 is bent and stored inside the pen cap 2. When charging is required, i.e., when the charging interface 121 needs to be exposed, the user can pull it outwards along the guide groove 14. The pen cap 2 and guide member 21 move outward along the guide groove 14 towards the pen barrel 1, causing the pen cap 2 to move away from the end of the pen barrel 1. The charging interface 121 will be exposed outside the pen barrel 1 through the charging hole 13, and the charging cable can be inserted for charging. During this process, since the button 1221 is fixedly connected to the pressing part 22 of the pen cap 2, the movement of the pen cap 2 will synchronously drive the FPC board 122, which is bent and stored inside the pen cap 2, to move away from the end of the circuit board 12 for expansion and release. When charging is completed, push the pen cap 2 again to reset the guide member 21 along the guide groove 14, and the pen cap 2 will be re-attached to the end of the pen barrel 1. The charging interface 121 will be hidden again, returning to the normal use state.

[0026] In this embodiment, a capacitive pen is designed by integrating the button 1221 with the FPC board 122 and directly fixing the button 1221 to the pressing part 22 of the pen cap 2. This reduces the need for components such as the reset spring and limiting structure required by the traditional housing button 1221, thus reducing assembly steps and lowering production and assembly costs. By integrating the button 1221 into the pen cap 2, the previously unused cavity inside the pen cap 2 is used to accommodate the button 1221, eliminating the need for additional installation space for the button 1221 and maintaining the capacitive pen's slim and portable design. At the same time, the FPC board 122 bends or extends along the axis of the pen barrel 1, and with the compact guiding design of the guide groove 14 and guide member 21, the charging interface 121 is waterproof and dustproof, while effectively utilizing the travel space of the pen cap 2, reducing the overall size of the capacitive pen. Furthermore, the FPC board 122's adaptation to the travel of the pen cap 2 can prevent circuit pulling failures and extend the device's service life.

[0027] In one embodiment, reference Figures 1 to 4The pen cap 2 is provided with an installation part 23. The end of the installation part 23 near the pressing part 22 is provided with a fixing part 231. The fixing part 231 is ring-shaped to realize the rigid connection between the button 1221 and the pen cap 2, ensuring that the installation position of the button 1221 is accurate and the installation is firm, and avoiding trigger failure or displacement due to loosening during the pressing operation. The other end of the installation part 23 is provided with a guide baffle 232. The guide baffle 232 is arc-shaped and is adapted to the preset bending trajectory of the FPC board 122. When the pen cap 2 moves, it can limit the FPC board 122 to only bend or stretch along a fixed arc, preventing it from bending arbitrarily to the inside of the pen cap 2.

[0028] The fixing part 231 ensures consistent feedback of the button 1221, reducing poor contact caused by loose connection. The guide baffle 232 avoids local stress concentration when the FPC board 122 is deformed, preventing copper foil circuit breakage, solder joint detachment, etc., significantly improving the long-term stability of circuit connection. In addition, the mounting part 23 integrates fixing and guiding functions, eliminating the need for additional independent limit structure design, reducing the number of parts, and effectively reducing assembly complexity and cost.

[0029] In one embodiment, reference Figures 1 to 6 The guide baffle 232 includes a flat section 2321 and a curved section 2322. One end of the flat section 2321 is connected to the fixing part 231. The curved section 2322 is located at the other end of the flat section 2321 and bends toward the circuit board 12. The flat section 2321 is arranged close to the pressing part 22 and extends along the axial direction of the mounting part 23. Its surface remains in a planar state that is in contact with the FPC board 122. The curved section 2322 is connected to the end of the flat section 2321 away from the pressing part 22 and bends toward the PFC board side at a preset arc. The bending radius is adapted to the maximum deformation arc of the FPC board 122 when the pen cap 2 moves, forming a guide structure that combines near-end planar support and far-end arc-shaped limiting.

[0030] Among them, reference Figures 1 to 6 As the FPC board 122 extends from the button 1221 to the circuit board 12, the portion near the pressing part 22 is arranged in a straight line. The flat section 2321 is in surface contact with the surface of this straight section, forming a rigid support for the near end of the PFC board. This prevents the area of ​​the FPC board 122 near the button 1221 from shaking or wrinkling when the pen cap 2 moves, ensuring the stability of the connection point between the button 1221 and the FPC board 122. When the pen cap 2 moves and drives the FPC board 122 to move into the pen barrel 1, the end of the FPC board 122 away from the pressing part 22 bends. The arc contour of the bending section 2322 matches the trajectory of the deformation area, guiding the FPC board 122 to gradually bend along the arc surface, while limiting the FPC board 122 from deviating in a non-preset direction, ensuring that the deformation path is controllable.

[0031] In one embodiment, reference Figures 1 to 7 The pen barrel 1 is provided with a bracket 3, the battery 11 and the circuit board 12 are both provided on the bracket 3, and the FPC board 122 extends outward toward the end of the bracket 3 near the pen cap 2; the bracket 3 near the pen cap 2 is also provided with a partition baffle 31 to separate the FPC board 122 and the circuit board 12.

[0032] Specifically, refer to Figures 1 to 7 The bracket 3, as an integrated support frame inside the pen barrel 1, can be made of a composite material of BOM and glass fiber, and is arranged to extend along the axial direction of the pen barrel 1. The battery 11 and the bracket 3 can be installed by setting a positioning groove. The circuit board 12 and the bracket 3 can be fixed by a buckle. After one end of the FPC board 122 is electrically connected to the circuit board 12, it extends outward toward the end of the bracket 3 near the pen cap 2, that is, it extends along the axial direction of the bracket 3 toward the pen cap 2, so as to avoid crossing and overlapping with the electronic components on the circuit board 12, thereby forming an independent extension path. The partition baffle 31 can be a plastic plate parallel to the axial direction of the bracket 3. One side of it corresponds to the connection part between the circuit board 12 and the FPC board 122, and the other side corresponds to the extension path of the FPC board 122, forming a physical partition barrier.

[0033] By extending the FPC board 122 outward toward the end of the bracket 3 near the pen cap 2, the extension path of the FPC board 122 can be optimized, keeping the FPC board 122 away from components such as the battery 11 and circuit board 12 on the bracket 3. This avoids physical collisions or interference between the FPC board 122 and other components, ensuring that the movement of the FPC board 122 is unimpeded when the pen cap 2 moves. On the other hand, it reduces the interference of the high-frequency signal of the circuit board 12 on the signal of the button 1221 of the FPC board 122, ensuring the sensitivity and accuracy of the button 1221. By physically separating the FPC board 122 from the circuit board 12 through the partition baffle 31, the heat generated by the circuit board 12 during operation can be effectively blocked from being transferred to the FPC board 122, preventing the FPC board 122 from aging faster due to high temperature. More importantly, the partition baffle 31 can also play a preliminary guiding role in the extension direction of the FPC board 122, assisting it to bend or stretch along a preset path.

[0034] In one embodiment, reference Figures 1 to 7The guide 21 is provided with a first magnetic element 211, and the bracket 3 is provided with a second magnetic element 33. The first magnetic element 211 and the second magnetic element 33 repel each other to form an axial repulsive force. When the pen cap 2 is closed, the first magnetic element 211 moves to the first position. When the pen cap 2 is opened, the first magnetic element 211 moves to the second position. The second magnetic element 33 is located between the first position and the second position. In normal use, the pen cap 2 can be limited to the first position by the repulsive force to prevent the pen cap 2 from falling off. In the charging state, the pen cap 2 can be pulled to the second position, and the pen cap 2 can be limited to the end of the charging interface 121 away from the pen barrel 1 by the repulsive force to facilitate the charging of the capacitive pen.

[0035] In one embodiment, reference Figures 1 to 7 The pen barrel 1 also includes an outer shell 101 and an inner shell 102. The inner shell 102 is disposed at one end of the outer shell 101 near the pen cap 2. The first end of the inner shell 102 is fixed inside the outer shell 101, and the second end of the inner shell 102 is exposed outside the outer shell 101. The charging hole 13 and the guide groove 14 are both disposed at the second end of the inner shell 102. When the guide member 21 moves along the guide groove 14 toward the inside of the pen barrel 1, it can drive the pen cap 2 to move toward the pen barrel 1 and be sleeved on the outside of the second end of the inner shell 102.

[0036] Specifically, refer to Figures 1 to 7 The outer shell 101 serves as the outer main structure of the capacitive pen, providing basic protection for the internal components. The inner shell 102 is located at one end of the outer shell 101 near the pen cap 2. Its first end can be fixed inside the outer shell 101 by a buckle or thread to ensure structural stability. Its second end is exposed outside the outer shell 101, serving as the interface for the pen cap 2. It integrates a charging hole 13 and a guide groove 14. The charging hole 13 is used to charge the pen cap 2 by engaging the charging interface 121, and the guide groove 14 is used for the sliding of the guide member 21 of the pen cap 2. This design provides overall protection through the outer shell 101, and the inner shell 102, in conjunction with the pen cap 2, allows for the exposure and concealment of the charging interface 121. This avoids the defect of weakening the overall strength of the outer shell 101 due to the opening of the charging hole 13 and the guide groove 14, effectively improving the stability and maintainability of the overall structure.

[0037] In one embodiment, reference Figures 1 to 7 The circuit board 12 is also equipped with a buzzer 123, which is integrated on the circuit board 12 and is used to emit prompt sounds when the capacitive pen is triggered by the button 1221, the charging state is switched, or the function is woken up, so as to realize auditory interactive feedback.

[0038] In one embodiment, reference Figures 1 to 7The pen barrel 1 is also provided with a pen tip 4 at the end away from the pen cap 2. The pen tip 4 is electrically connected to the circuit board 12. The pen tip 4 is a component of the capacitive pen used to interact directly with the smart terminal. It can be made of conductive silicone, metal composite material, etc. After being electrically connected to the circuit board 12, it can transmit the electrical signal of the capacitive pen to the terminal screen to realize writing, drawing and touch operation.

[0039] In one embodiment, reference Figures 1 to 7 The guide component 21 and the mounting component 23 are integrally formed. By adopting an integral forming process, the two move synchronously, realizing the functions of guiding the movement of the pen cap 2, fixing the button 1221, and guiding the FPC board 122. On the one hand, it can reduce the number of parts and reduce the space occupied inside the pen cap 2, leaving more layout space for the FPC board 122, button 1221 and other components inside the pen cap 2, which is beneficial to the thin and light design of the capacitive pen. On the other hand, it can avoid the precision loss of separate equipment and ensure the accuracy of the relative position of the guide groove 14, the button 1221 fixing part 231 and the FPC guide baffle 232.

[0040] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A capacitive pen, characterized in that, include: The pen includes a barrel and a cap. The barrel contains a battery and a circuit board, which are electrically connected. The circuit board has a charging interface. A charging hole is correspondingly formed on the surface of the barrel, through which the charging interface is exposed. A guide groove is provided on the inner side of the barrel near the cap. A guide member is provided on the end of the cap near the barrel, movably positioned within the guide groove. The guide member moves along the guide groove toward the interior of the barrel, causing the cap to move toward the barrel and fit over one end of the barrel, thus concealing the charging interface within the cap. The circuit board is provided with an FPC board at one end near the pen cap. One end of the FPC board is electrically connected to the circuit board, and the other end of the FPC board is provided with a button. The pen cap is provided with a pressing part that cooperates with the button at the end away from the pen barrel. The button is fixed to the pressing part. The movement of the pen cap relative to the pen barrel can drive the button to move and cause the FPC board to bend or stretch.

2. The capacitive pen according to claim 1, characterized in that: The pen cap is provided with a mounting component. One end of the mounting component near the pressing part is provided with a fixing part for fixing the button. The other end of the mounting component is provided with a guide baffle for limiting the bending path of the FPC board when the pen cap moves toward the pen barrel.

3. The capacitive pen according to claim 2, characterized in that: The guide baffle includes a flat section and a curved section. One end of the flat section is connected to the fixing part, and the curved section is located at the other end of the flat section and is curved toward the circuit board.

4. The capacitive pen according to claim 1, characterized in that: A bracket is provided inside the pen barrel, and the battery and the circuit board are both mounted on the bracket, with the FPC board extending outward toward the end of the bracket near the pen cap.

5. The capacitive pen according to claim 4, characterized in that: The bracket is also provided with a partition plate at one end near the pen cap to separate the FPC board and the circuit board.

6. The capacitive pen according to claim 4, characterized in that: The guide is provided with a first magnetic element, and the bracket is provided with a second magnetic element, wherein the first magnetic element and the second magnetic element repel each other.

7. The capacitive pen according to claim 1, characterized in that: The pen barrel also includes an outer shell and an inner shell. The inner shell is disposed at one end of the outer shell near the pen cap. The first end of the inner shell is fixed inside the outer shell, and the second end of the inner shell is exposed outside the outer shell. The charging hole and the guide groove are both disposed at the second end of the inner shell. When the guide moves along the guide groove toward the inside of the pen barrel, it can drive the pen cap to move toward the pen barrel and be fitted onto the second end of the inner shell.

8. The capacitive pen according to claim 1, characterized in that: A buzzer is also installed on the circuit board.

9. The capacitive pen according to claim 1, characterized in that: The pen barrel is further provided with a pen tip at the end away from the pen cap, and the pen tip is electrically connected to the circuit board.

10. The capacitive pen according to claim 2, characterized in that: The guide component and the mounting component are integrally formed.

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