Touch pen

Abstract

The invention discloses a touch pen which comprises a pen body and a pen point. Wherein the pen point is arranged at the end part of the pen body, the pen point comprises a first pen point part and a second pen point part which are both conductive, the first pen point part and the second pen point part are respectively and detachably connected with the pen body, and the second pen point part covers the outer part of the first pen point part and is used for being in writing contact with a capacitive screen. According to the technical scheme, the writing experience of the touch pen can be improved.

Description

Technical Field

[0001] This application relates to the field of touch device technology, and in particular to a stylus. Background Technology

[0002] With the widespread use of touchscreens in people's lives and work, styluses, which offer advantages such as high touch accuracy, rich expansion functions, and compatibility with consumer usage habits, have gradually become one of the mainstream human-computer interaction methods. There are many types of styluses, including capacitive pens and electromagnetic pens. Among them, capacitive pens include active capacitive pens and passive capacitive pens. Passive capacitive pens achieve human-computer interaction by changing the capacitance of the capacitive screen through contact with a conductive material.

[0003] In related technologies, the stylus tip is a one-piece design, which cannot combine multiple touch features, resulting in a poor writing experience. Summary of the Invention

[0004] This application provides a stylus that enhances the writing experience.

[0005] This application provides a stylus, which includes a pen body and a pen tip. The pen tip is disposed at the end of the pen body and includes a first pen tip and a second pen tip, both of which are conductive. The first pen tip and the second pen tip are detachably connected to the pen body. The second pen tip covers the outside of the first pen tip and is used for writing contact with the capacitive screen.

[0006] In some embodiments, a first connecting part is provided at the end where the pen body is connected to the pen tip. The first connecting part has a mounting surface. A first pen tip is inserted into the first connecting part and abuts against the mounting surface. A second pen tip is inserted into the first connecting part.

[0007] In some embodiments, a second connecting portion is provided at the first pen tip along the axial direction of the pen body, one of the first connecting portion and the second connecting portion is provided with a slot with an opening facing the axial direction of the pen body, and the other of the first connecting portion and the second connecting portion is provided with a plug rod that is inserted into the slot.

[0008] In some embodiments, the mounting surface is parallel to the radial direction of the pen body, the first pen tip is also provided with an abutting surface, and the second connecting part protrudes from the abutting surface, the abutting surface is parallel to the mounting surface and abuts against the mounting surface.

[0009] In some embodiments, the first connecting part is provided with a slot, the second connecting part is provided with a plug, and the depth of the slot is greater than or equal to the length of the plug.

[0010] In some embodiments, the first connecting portion is provided with a limiting groove, the limiting groove is arranged around the first connecting portion, the second pen tip portion includes a main body portion and a limiting portion, the main body portion covers the outside of the first pen tip portion, the limiting portion is connected to the side of the main body portion away from the first pen tip portion, the limiting portion extends toward the first connecting portion and is engaged in the limiting groove.

[0011] In some embodiments, the limiting groove includes a first segment and a second segment that are connected to each other. The first segment extends in a direction parallel to the mounting surface, and one end of the second segment is connected to the first segment, while the other end penetrates the mounting surface.

[0012] The limiting part extends from the second section into the first section to engage with the limiting groove.

[0013] In some embodiments, the thickness of the portion of the limiting part that extends into the second segment is greater than the thickness of the main body.

[0014] In some embodiments, the thickness of the main body is less than or equal to 0.3 mm.

[0015] In some embodiments, the material of the first pen tip is conductive silicone;

[0016] And / or, the material of the second pen tip includes a wear-resistant matrix and conductive particles, the conductive particles being embedded in the wear-resistant matrix, the wear-resistant matrix being polytetrafluoroethylene, and the conductive particles including at least one of carbon black particles, metal particles, and glass microspheres.

[0017] And / or, the pen body is made of conductive plastic.

[0018] The stylus based on this application embodiment has a pen tip disposed at the end of the pen body. The pen tip includes a first pen tip and a second pen tip, both of which are conductive. The second pen tip covers the outside of the first pen tip and is used for writing contact with the capacitive screen. The first pen tip and the second pen tip can be made of different materials, which allows them to have different properties, giving the pen tip both good conductivity and good wear resistance, thus enabling the stylus pen tip to have multiple performance advantages. Furthermore, the first pen tip and the second pen tip are detachably connected to the pen body, facilitating the separate manufacturing of the first and second pen tips. It also allows for easy disassembly and assembly of either the first or second pen tip for cleaning and replacement. Users can also replace the first or second pen tip individually as needed, reducing replacement costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the stylus of this application;

[0021] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the stylus along section AA.

[0022] Figure 3 for Figure 2 The enlarged view of point B shown in the image;

[0023] Figure 4 for Figure 1 The diagram shows a partial cross-sectional view of the stylus body.

[0024] Figure 5 for Figure 1 The diagram shows the structure of the stylus making writing contact with the capacitive screen.

[0025] Explanation of icon numbers:

[0026] 1. Stylus; 10. Pen body; 11. First connecting part; 111. Mounting surface; 112. Slot; 113. Limiting slot; 1131. First section; 1132. Second section; 20. Pen tip; 21. First pen tip; 211. Second connecting part; 2111. Insert rod; 22. Second pen tip; 221. Main body; 222. Limiting part.

[0027] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0029] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0030] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] With the widespread use of touchscreens in people's lives and work, styluses, which offer advantages such as high touch accuracy, rich expansion functions, and compatibility with consumer usage habits, have gradually become one of the mainstream human-computer interaction methods. There are many types of styluses, including capacitive pens and electromagnetic pens. Among them, capacitive pens include active capacitive pens and passive capacitive pens.

[0033] Passive capacitive pens typically do not require a power source. Instead, the pen tip absorbs electrical signals from a sufficient touch area on the capacitive screen, and the pen body transmits these signals to the hand, changing the capacitance of the screen and thus simulating a finger for writing or touch operations, enabling human-computer interaction. Therefore, both the pen body and the pen tip of a passive capacitive pen need to have a certain degree of conductivity.

[0034] In related technologies, the larger the contact area between a passive capacitive pen and the capacitive screen during touch operation, the more capacitive signal it absorbs, meaning a higher sensing intensity. To achieve conductivity in the pen tip, current passive capacitive pen tips are typically made of a single, highly flexible material such as conductive silicone, rubber, or conductive felt. During touch operation with the capacitive screen, the increased deformation results in a larger contact area and thus a higher sensing intensity. However, this also leads to greater friction during writing and wear over time; some felt materials even shed fibers after prolonged use, rendering them unusable. Conversely, while passive capacitive pen tips made of other hard materials offer good wear resistance, their relatively high hardness makes deformation during touch operation difficult, resulting in a smaller contact area and lower sensing intensity, leading to relatively weaker performance. This creates a trade-off between wear resistance and sensing intensity in passive capacitive pen writing, resulting in a poor writing experience.

[0035] To resolve the above issues, please refer to [link / reference]. Figures 1 to 3 This application proposes a stylus 1, which can be a capacitive stylus, specifically a passive capacitive stylus. In the embodiments of this application, the stylus 1 includes a stylus body 10 and a stylus tip 20.

[0036] The pen body 10 can be made of metal, such as stainless steel or aluminum alloy, which has good conductivity. This ensures that when the pen tip 20 is in contact with the capacitive screen for writing, the pen body 10 can effectively receive and transmit electrical signals, thereby improving the sensitivity and accuracy of touch control. At the same time, the metal pen body 10 has high material strength and wear resistance, which can extend its service life.

[0037] The pen body 10 can also be made of other conductive materials, such as conductive plastic. Conductive plastic is relatively inexpensive and has high conductivity, ensuring that the stylus 1 can be accurately recognized on different types of capacitive screens, while also having low latency and high sensitivity, thus improving the writing experience. Due to the plasticity of conductive plastic, the pen body 10 can be made into different shapes and colors through various processes to meet users' personalized appearance needs and adapt to different users' grip habits, providing a better user experience. Conductive plastic has stable chemical properties, good weather resistance, and aging resistance, which helps to improve the service life and reliability of the stylus 1. The pen body 10 can also be made of polycarbonate (PC), acrylonitrile butadiene styrene (ABS), or polyphenylene ether (PPE), etc., and this application does not limit this choice.

[0038] The pen tip 20 is located at the end of the pen body 10. The pen tip 20 includes a first pen tip 21 and a second pen tip 22, both of which are conductive. The second pen tip 22 covers the outside of the first pen tip 21 and is used for writing contact with the capacitive screen. The first pen tip 21 and the second pen tip 22 can be made of different materials, so that the first pen tip 21 and the second pen tip 22 can have different properties. This allows the pen tip 20 to have both good conductivity and good wear resistance, thus enabling the pen tip 20 of the stylus 1 to take into account multiple performance advantages.

[0039] For example, the first pen tip 21 can be made of a material with good conductivity and high flexibility, while the second pen tip 22 can be made of a material with good conductivity, high wear resistance, and low coefficient of friction. This way, during the writing process between the stylus 1 and the capacitive screen, both the first pen tip 21 and the second pen tip 22 will undergo some deformation, increasing the contact area and ensuring the sensitivity of the stylus 1. Furthermore, since the second pen tip 22 covers the first pen tip 21, meaning it is the second pen tip 22 that directly contacts the capacitive screen, the frictional resistance between the second pen tip 22 and the screen is low, and its wear resistance is high, greatly enhancing the writing experience.

[0040] Furthermore, the first pen tip 21 and the second pen tip 22 are detachably connected to the pen body 10, which facilitates the separate processing and manufacturing of the first pen tip 21 and the second pen tip 22. It also makes it easy to disassemble and assemble the first pen tip 21 or the second pen tip 22 for cleaning and replacement. Users can also replace the first pen tip 21 or the second pen tip 22 individually as needed, reducing replacement costs.

[0041] In some embodiments, the first pen tip 21 is made of conductive silicone to ensure conductivity while reducing the number of components. Conductive silicone also has good flexibility, allowing for greater deformation during writing, thereby increasing the sensitivity of the stylus 1 and improving its sensitivity and accuracy for a better writing experience. Conductive silicone has good aging resistance, maintaining conductivity under natural flat storage aging and high-temperature accelerated aging conditions. It can be stored stably for a long time in harsh environments such as humidity and acid / alkali, extending its service life.

[0042] The material of the second pen tip 22 includes a wear-resistant matrix and conductive particles. The wear-resistant matrix is ​​polytetrafluoroethylene (PTFE), also known as Teflon, which is a high molecular polymer obtained by polymerizing tetrafluoroethylene as a monomer. As an engineering plastic with unique physical and chemical properties, it is widely used in various fields. It can be processed into the required shape by sintering, extrusion and other methods to better adapt to different usage needs.

[0043] It should be noted that if the coefficient of friction is too high, the writing resistance of the pen tip 20 on the capacitive screen will increase, resulting in difficult and uneven writing; if the coefficient of friction is too low, the pen tip 20 may easily slip on the capacitive screen, making it difficult to control and reducing writing accuracy. Polytetrafluoroethylene (PTFE), as the wear-resistant matrix material of the second pen tip 22, has a low coefficient of friction, high insulation, good electrical properties, and chemical stability, providing the stylus 1 with a high-performance writing experience. It effectively avoids problems such as insufficient wear resistance and screen damage, and also reduces screen impact noise, thus protecting the capacitive screen. Furthermore, PTFE has strong resistance to most chemicals and is not easily corroded or degraded. Its hydrophobic properties also help prevent the accumulation of dirt on the pen tip 20, greatly extending its lifespan.

[0044] Since polytetrafluoroethylene is an insulating material and is generally not conductive, conductive particles are embedded in the wear-resistant matrix to form a composite material consisting of the wear-resistant matrix and conductive particles, which gives the second pen tip 22 high conductivity.

[0045] The conductive particles include at least one of carbon black particles, metal particles, and glass microspheres, to give the wear-resistant matrix a certain degree of conductivity, thereby improving the writing sensitivity of the pen tip 20. The metal particles can be copper powder or silver powder, giving the second pen tip 22 high conductivity, while the glass microspheres can reduce the surface friction coefficient of the wear-resistant matrix, thereby improving the smoothness of writing with the pen tip 20.

[0046] Furthermore, to ensure the uniform distribution of the wear-resistant matrix and conductive particles in the second pen tip 22 and improve its overall performance, coupling agents can be used during the manufacturing process. For example, adding silane-based coupling agents to the composite material composed of the wear-resistant matrix and conductive particles can effectively improve the dispersion of conductive particles in the wear-resistant matrix, promote the adhesion between different substances, and thus improve the overall performance of the composite material system of the second pen tip 22. Alternatively, dispersants such as vinyl bis-stearamide or fatty acids can be added to achieve better and more uniform dispersion of conductive particles in the wear-resistant matrix.

[0047] In preparing the composite material consisting of a wear-resistant matrix and conductive particles, the temperature and time of the mixing mill, as well as the method of adding the vulcanizing agent, are precisely controlled to ensure that the conductive particles are uniformly distributed throughout the wear-resistant matrix. For example, the mixture is mixed at a temperature of 70°C to 90°C for 60 to 90 minutes, and the vulcanizing agent is added slowly in multiple batches to form a homogeneous silica gel mixture.

[0048] In some embodiments, please refer to Figures 2 to 4The pen body 10 has a first connecting part 11 at the end where it connects to the pen tip 20. The first connecting part 11 has a mounting surface 111. The first pen tip 21 is inserted into the first connecting part 11 and abuts against the mounting surface 111. The second pen tip 22 is also inserted into the first connecting part 11, making installation more convenient and allowing users to replace the pen tip 20 without affecting the integrity and aesthetics of the pen body 10. This also facilitates the cleaning and maintenance of the first pen tip 21 and the second pen tip 22 separately, reducing manufacturing costs. The first pen tip 21 and the second pen tip 22 can be detachably connected to the first connecting part 11, allowing for separate processing and manufacturing, resulting in different structures and material properties.

[0049] The detachable connection methods between the first pen tip 21 and the second pen tip 22 and the first connecting part 11 include, but are not limited to, connector connection, interference fit, etc., and this application does not limit them. It should be noted that when the first pen tip 21 and the second pen tip 22 are connected to the first connecting part 11 respectively using connectors, the connectors can be clamps. The clamps are sleeved on the outside of the connection between the pen body 10 and the pen tip 20, which can tightly fix the first pen tip 21 and the first connecting part 11, and the second pen tip 22 and the first connecting part 11 to each other, thereby providing a good sealing connection effect. At this time, a groove can be opened on the outside of the connection between the pen body 10 and the pen tip 20, and the clamp can be embedded in the groove to achieve better limiting and fixing, and will not cause a protrusion on the outside of the pen body 10 and the pen tip 20, improving the structural integrity and thus avoiding affecting the user's hand feel.

[0050] The first pen tip 21 abuts against the mounting surface 111. After the first pen tip 21 is inserted into the first connecting part 11, it can further limit the first pen tip 21 in the setting direction of the mounting surface 111. At the same time, the second pen tip 22 covers the first pen tip 21 on the side of the first pen tip 21 away from the mounting surface 111, so that the first pen tip 21 can be more stably fixed and limited with the first connecting part 11, improving the mechanical strength and structural toughness of the pen tip 20, effectively preventing the first pen tip 21 from falling off the first connecting part 11, thereby better improving the user's writing experience.

[0051] In some embodiments, along the axial direction of the pen body 10, the first pen tip 21 is provided with a second connecting portion 211. One of the first connecting portion 11 and the second connecting portion 211 is provided with a slot 112 with its opening facing the axial direction of the pen body 10. The other of the first connecting portion 11 and the second connecting portion 211 is provided with a plug 2111, which is inserted into the slot 112. In this way, by the insertion and fixation of the first connecting portion 11 and the second connecting portion 211, the first pen tip 21 is connected to the pen body 10 in the axial direction of the pen body 10, which helps to ensure the stability of the pen tip 20 during writing and touch, prevents the pen tip 20 from shifting, and thus improves the writing experience.

[0052] Specifically, the mounting surface 111 is parallel to the radial direction of the pen body 10. The first pen tip 21 is also provided with an abutting surface. The second connecting part 211 protrudes from the abutting surface, which is parallel to the mounting surface 111 and abuts against the mounting surface 111. This ensures that the pen tip 20 will not wobble or fall off during writing, improving the smoothness of writing and the accuracy of touch control, thereby enhancing the user's writing experience. It also ensures the tightness of the connection between the first connecting part 11 and the mounting surface 111, preventing gaps between the mounting surface 111 and the abutting surface from accumulating dirt. It also prevents impurities from entering the slot 112 from between the mounting surface 111 and the abutting surface, reducing maintenance costs.

[0053] In one embodiment of this application, the first connecting part 11 is provided with a slot 112, and the second connecting part 211 is provided with a plug 2111. During installation, the plug 2111 is inserted into the slot 112, and the first pen tip 21 can be inserted and fixed to the pen body 10 in the axial direction. It should be noted that if the insertion fit between the slot 112 and the plug 2111 is too tight, it may affect the flexibility of the pen tip 20, resulting in less smooth writing; conversely, if the fit is too loose, the plug 2111 of the pen tip 20 may wobble in the slot 112, affecting the smoothness of writing and the accuracy of touch control. Therefore, an appropriate installation gap helps to ensure the stability of the plug 2111 in the slot 112, thereby improving the connection stability between the pen tip 20 and the pen body 10, and thus maintaining the smoothness of writing.

[0054] Specifically, the depth of slot 112 is greater than or equal to the length of insert 2111. If the depth of slot 112 is greater than the length of insert 2111, there is an installation gap between the bottom wall of slot 112 and insert 2111. This prevents the insert 2111 from being partially exposed outside slot 112 after insertion due to manufacturing or installation errors, thus avoiding a misalignment between the mounting surface 111 and the contact surface. Therefore, the depth of slot 112 being greater than the length of insert 2111 ensures that during actual installation, slot 112... The installation gap between the bottom wall of slot 2 and the insertion rod 2111 provides sufficient space for insertion, ensuring that after the insertion rod 2111 is inserted into slot 112, the mounting surface 111 and the abutment surface can abut and limit the connection, thus ensuring a tight connection between the mounting surface 111 and the abutment surface and improving the strength and stability of the overall structure. If the depth of slot 112 is equal to the length of insertion rod 2111, the bottom wall of slot 112 and insertion rod 2111 can be tightly inserted, preventing gaps between the bottom wall of slot 112 and insertion rod 2111 from accumulating dirt.

[0055] In some embodiments, the first connecting portion 11 is provided with a limiting groove 113, which surrounds the first connecting portion 11. The second pen tip portion 22 includes a main body portion 221 and a limiting portion 222. The main body portion 221 and the limiting portion 222 can be an integral structure to ensure structural strength. The main body portion 221 covers the outside of the first pen tip portion 21 and directly contacts the capacitive screen during writing. The limiting portion 222 is connected to the side of the main body portion 221 away from the first pen tip portion 21, extends toward the first connecting portion 11, and is engaged in the limiting groove 113, thereby realizing the insertion and fixation of the second pen tip portion 22 and the first connecting portion 11, which facilitates disassembly and assembly.

[0056] Specifically, such as Figure 3 and Figure 4 As shown, the limiting groove 113 includes a first segment 1131 and a second segment 1132 that are connected. The extension direction of the first segment 1131 is parallel to the mounting surface 111. One end of the second segment 1132 is connected to the first segment 1131, and the other end passes through the mounting surface 111. The limiting part 222 extends from the second segment 1132 into the first segment 1131 to engage with the limiting groove 113. Furthermore, the extension direction of the first segment 1131 is parallel to the radial direction of the pen body 10, and the extension direction of the second segment 1132 is parallel to the axial direction of the pen body 10. In this way, the limiting part 222 inserts and fixes the second pen tip 22 onto the pen body 10 along the radial and axial directions of the pen body 10. At the same time, it can also restrict the movement of the first pen tip 21 enclosed inside the main body 221, ensuring that there is no relative slippage between the contact surface and the mounting surface 111, thereby ensuring the integrity and tightness of the connection between the first pen tip 21 and the second pen tip 22, and improving the writing experience.

[0057] In actual installation, when the first connecting part 11 is provided with a slot 112 and the second connecting part 211 is provided with a plug 2111, the plug 2111 is first inserted into the slot 112 so that the first pen tip 21 is inserted into the pen body 10. Then, the limiting part 222 is extended from the second section 1132 into the first section 1131 to engage with the limiting groove 113, so that the second pen tip 22 is inserted into the pen body 10. At this time, the main body 221 covers the outside of the first pen tip 21. In this way, the pen tip 20 can be detachably connected to the pen body 10, enabling quick installation of the pen tip 20, facilitating manufacturing, ensuring the integrity of the pen tip 20, and limiting and fixing the first pen tip 21 and the second pen tip 22 in both the radial and axial directions of the pen body 10, avoiding relative sliding between the first pen tip 21 and the second pen tip 22, further preventing the pen tip 20 from loosening during use, thereby ensuring the smoothness of writing and the accuracy of touch control, and thus further improving the user experience.

[0058] In some embodiments, the thickness of the portion of the limiting part 222 extending into the second segment 1132 is greater than the thickness of the main body 221, which increases the tightness of the connection between the limiting part 222 and the limiting groove 113 and improves the structural connection strength. The portion of the limiting part 222 extending into the second segment 1132 can also be interference-fitted with the groove wall of the second segment 1132 to prevent the limiting part 222 from falling out of the second segment 1132 after the stylus 1 is dropped or the pen tip 20 is pulled, thus ensuring that the limiting part 222 will not fall out of the limiting groove 113 and improving the durability of the pen tip 20.

[0059] In some embodiments, the thickness of the main body 221 is less than or equal to 0.3 mm. When the thickness of the main body 221 is greater than 0.3 mm, it is not easy to deform with writing touch, the sensing amount will be reduced, and the entire pen tip 20 will be correspondingly larger, resulting in a bulky structure and making writing difficult. Therefore, the thickness of the main body 221 is less than or equal to 0.3 mm to ensure that when writing in contact with the capacitive screen, the main body 221 can deform to a certain extent together with the first pen tip 21 enclosed inside, such as... Figure 5 The schematic diagram shown illustrates the contact between the main body 221 of the stylus tip 20 and the capacitive screen. This allows the main body 221 and the capacitive screen to have a large contact area, thereby obtaining a large amount of sensing data. Even minute touch changes can be detected, thus improving the sensitivity and accuracy of the stylus 1, making touch operation and writing smoother and more natural, and ultimately enhancing the user experience.

[0060] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0061] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A stylus, characterized in that, include: Pen body; as well as A pen tip is disposed at the end of the pen body. The pen tip includes a first pen tip and a second pen tip, both of which are conductive. The first pen tip and the second pen tip are detachably connected to the pen body. The second pen tip covers the outside of the first pen tip and is used for writing contact with the capacitive screen.

2. The stylus as described in claim 1, characterized in that, The pen body is provided with a first connecting part at one end where it is connected to the pen tip. The first connecting part has a mounting surface. The first pen tip is inserted into the first connecting part and abuts against the mounting surface. The second pen tip is inserted into the first connecting part.

3. The stylus as described in claim 2, characterized in that, Along the axial direction of the pen body, the first pen tip is provided with a second connecting part, one of the first connecting part and the second connecting part is provided with a slot with the opening facing the axial direction of the pen body, and the other of the first connecting part and the second connecting part is provided with a plug rod, which is inserted into the slot.

4. The stylus as described in claim 3, characterized in that, The mounting surface is parallel to the radial direction of the pen body. The first pen tip is also provided with an abutting surface. The second connecting part protrudes from the abutting surface. The abutting surface is parallel to the mounting surface and abuts against the mounting surface.

5. The stylus as described in claim 3, characterized in that, The first connecting part is provided with the slot, the second connecting part is provided with the insertion rod, and the depth of the slot is greater than or equal to the length of the insertion rod.

6. The stylus as described in claim 2, characterized in that, The first connecting portion is provided with a limiting groove, which is arranged around the first connecting portion. The second pen tip portion includes a main body portion and a limiting portion. The main body portion covers the outside of the first pen tip portion. The limiting portion is connected to the side of the main body portion away from the first pen tip portion. The limiting portion extends toward the first connecting portion and is engaged in the limiting groove.

7. The stylus as described in claim 6, characterized in that, The limiting groove includes a first section and a second section that are connected to each other. The extension direction of the first section is parallel to the mounting surface. One end of the second section is connected to the first section, and the other end penetrates the mounting surface. The limiting part extends from the second section into the first section to engage with the limiting groove.

8. The stylus as described in claim 7, characterized in that, The thickness of the portion of the limiting part that extends into the second segment is greater than the thickness of the main body.

9. The stylus as described in claim 6, characterized in that, The thickness of the main body is less than or equal to 0.3 mm.

10. The stylus as described in claim 1, characterized in that, The material of the first pen tip is conductive silicone; And / or, the material of the second pen tip includes a wear-resistant matrix and conductive particles, wherein the conductive particles are embedded in the wear-resistant matrix, the wear-resistant matrix is ​​polytetrafluoroethylene, and the conductive particles include at least one of carbon black particles, metal particles, and glass microspheres. And / or, the pen body is made of conductive plastic.

Images