Touch pen
By forming a porous structure inside the stylus tip, the problem of unbalanced damping in existing technologies is solved, resulting in a more natural touch and writing experience.
Patent Information
- Application Number
- CN202520318297.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-25
AI Technical Summary
The materials used in existing styluses result in an unbalanced damping feel during use; rubber injection molding is too smooth, while silicone high-temperature molding results in either too hard or too soft, leading to a poor user experience in touch and writing.
Design a stylus with multiple isolated deformation spaces inside the pen tip. When the material is compressed, it can deform into the deformation spaces, increasing the contact area with the screen and the frictional resistance. The damping sensation is optimized by forming a porous structure inside the pen tip.
It provides a more natural touch, writing, and drawing experience by increasing the contact area between the pen tip and the screen and reducing frictional resistance, thereby improving the user experience.
Smart Images
Figure CN223926875U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic equipment technology, and in particular to a stylus. Background Technology
[0002] A stylus is an input tool designed specifically for touchscreen devices, simulating human touch for precise control and operation. These pens typically feature a specially designed tip with electrodes internally connected to a circuit board within the pen body to detect capacitance changes when the tip contacts the screen. The tip design needs to be sufficiently precise to mimic human touch while ensuring a stable connection to the circuit board. Styluses can be passive, serving as a simple touch replacement, or active, incorporating built-in sensors and wireless technology to support advanced features such as pressure sensing, tilt detection, and gesture recognition. They are widely used in smartphones, tablets, electronic signature pads, and professional drawing applications, providing users with an intuitive, flexible, and efficient interaction method.
[0003] In related technologies, the pen tips used in touch screen applications are generally made of rubber injection molding or silicone high-temperature molding. However, rubber injection molding pen tips are too smooth to use and lack damping; while silicone high-temperature molding pen tips are too hard and lack damping, or too soft and have too strong damping, making it difficult to achieve a moderate damping feel, resulting in a poor user touch and writing experience. Utility Model Content
[0004] The main purpose of this invention is to propose a stylus that optimizes the damping sensation when the pen tip contacts the touchscreen, so as to provide a more natural touch, writing and drawing experience.
[0005] To achieve the above objectives, the present invention proposes a stylus, which includes a pen body and a pen tip. The pen tip is detachably disposed at one end of the pen body, and the interior of the pen tip forms several mutually separated deformation spaces. The pen tip can deform into the deformation spaces when pressed.
[0006] The deformation space is configured as a polyhedral shape or a three-dimensional grid, and the deformation space is filled with crystalline material and / or crystalline material is added to the substrate material of the pen tip.
[0007] In one embodiment, the deformation space is configured to be spherical.
[0008] In one embodiment, the shape of the deformation space is configured as an irregular sphere.
[0009] In one embodiment, the pen body includes:
[0010] A housing having a receiving cavity, wherein a mounting bracket is provided within the receiving cavity;
[0011] A battery, the battery being disposed in the receiving cavity; and
[0012] A circuit board is disposed on the mounting bracket and located within the receiving cavity, and the circuit board is electrically connected to the battery.
[0013] In one embodiment, one end of the pen body is provided with an internal threaded hole, and the pen tip is provided with a mounting post, the mounting post being threadedly connected to the internal threaded hole.
[0014] In one embodiment, a charging port is provided at the end of the pen body away from the pen tip, and a tail eraser is provided around the charging port.
[0015] In one embodiment, the mounting post has a contact point on the side facing the internal threaded hole, and the pen body also includes a contact portion, which is disposed in and exposed in the receiving cavity, and the contact portion abuts against the contact point to conduct electricity.
[0016] In one embodiment, the pen tip is made of PE or EVA material.
[0017] In one embodiment, the pen tip gradually tapers from one end closer to the pen body to the end further away from the pen body;
[0018] The tip of the pen has an arc-shaped contact end face.
[0019] The present invention proposes a stylus that employs an internal porous structure in the pen tip that contacts the touchscreen, forming several deformation spaces within it. When the pen tip comes into contact with the screen under pressure, the flexible material constituting the pen tip deforms into these deformation spaces, compressing them and making the pen tip more easily deformable. This causes the contact surface between the pen tip and the screen to expand under pressure, increasing the contact area and thus increasing the frictional resistance between them. Consequently, the pen tip provides a more natural touch, writing, and drawing experience by enhancing the damping feel during writing and touch. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0021] Figure 1A schematic diagram of a stylus provided by this utility model;
[0022] Figure 2 for Figure 1 A structural diagram of the stylus from another angle;
[0023] Figure 3 A cross-sectional view of the stylus;
[0024] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.
[0025] Explanation of icon numbers:
[0026] 100. Stylus; 1. Pen body; 1a. Housing; 1b. Receiving cavity; 11. Tail eraser; 12. Power switch; 13. Power indicator light; 14. Magnetic attachment; 15. Charging interface; 2. Pen tip; 21. Mounting post; 22. Arc-shaped contact end face; 23. Contact point; 2a. Deformation space; 3. Battery; 4. First circuit board; 41. Contact part; 5. Circuit board bracket; 6. Second circuit board.
[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0031] In the current technology, the pen tips used in touch screens are generally made of rubber injection molding or silicone high-temperature molding. However, rubber injection molding pen tips are too smooth to use and have no damping feel; while silicone high-temperature molding pen tips are too hard to use and have no damping feel, while the material is too soft and has too strong damping feel. It is difficult to have a moderate damping feel, resulting in a poor user touch and writing experience.
[0032] To address the aforementioned issues, this invention proposes a stylus 100, designed to optimize the damping sensation when the pen tip 2 contacts the touchscreen, thereby providing a more natural touch, writing, and drawing experience. Figures 1 to 4 This is a schematic diagram of an embodiment of the stylus 100 provided by this utility model.
[0033] Please refer to Figures 1 to 4 This utility model proposes a stylus 100, which includes a pen body 1 and a pen tip 2. The pen tip 2 is detachably disposed at one end of the pen body 1. The pen tip 2 has a plurality of mutually spaced deformation spaces 2a inside, and the pen tip 2 can deform into the deformation spaces 2a when pressed.
[0034] It is understood that this utility model does not limit the processing technology of the pen tip 2 mentioned in the stylus 100; it can be obtained through foaming, injection molding, or extrusion molding. Taking foaming as an example, the bubble structure (i.e., deformation space 2a) inside the pen tip 2 is generated through physical or chemical foaming principles. Physical foaming typically uses mechanical stirring or pressure changes to introduce air and form bubbles, while chemical foaming generates gas through chemical reactions, thereby forming a porous structure inside the pen tip 2. The porous structure provides sufficient space for the pen tip 2 to deform under pressure, making the pen tip 2 easier to deform, thereby increasing its frictional resistance with the screen and improving the damping feel.
[0035] The polycrystalline material mentioned in this invention refers to a substrate whose crystallinity is increased to 10%-85% through the addition of crystallization chemical reagents, resulting in a preferred orientation of the substrate material during preparation, synthesis, and processing, meaning that the orientation of each grain is concentrated in one or several specific directions. After the material is processed by pressure or other processes such as drawing, rolling, extrusion, and spinning, deformation texture is formed due to the rotation and deformation of the grain orientation during plastic deformation; after annealing, recrystallization textures of different cold working states are produced. This can enhance the subtle vibration sensation during use and improve the friction and elasticity when touching the screen.
[0036] The present invention proposes a stylus 100. By adopting an internal porous structure in the pen tip 2 that contacts the touch screen, that is, forming several deformation spaces 2a inside, the flexible material constituting the pen tip 2 deforms into the deformation spaces 2a when the pen tip 2 is pressed against the screen. The deformation spaces 2a are compressed, making the pen tip 2 more easily deformable. This causes the contact surface between the pen tip 2 and the screen to expand under pressure, increasing the contact area between the pen tip 2 and the screen, thereby increasing the frictional resistance between the two and increasing the damping feel of the pen tip 2 when writing and touching, so as to provide a more natural touch, writing and drawing experience.
[0037] It should be noted that this utility model does not limit the specific dimensions of the deformation space 2a. Its specific dimensions should be adaptively adjusted according to the size parameters of the stylus tip 2 of the stylus 100. For different models of stylus 100, the size of the tip 2 will vary to some extent; for example, when the size of the stylus 100 is... The size of the pen tip is The diameter of the pen tip 2 of these styluses 100 generally ranges from 4mm to 9mm. Taking a 4mm diameter pen tip 2 as an example, the diameter of its internal deformation space 2a should be reduced accordingly; if the diameter of the pen tip 2 is 9mm, the inner diameter of the deformation space 2a should be increased accordingly, depending on the design and purpose of the styluse 100.
[0038] Furthermore, in this invention, the deformation spaces 2a are independent of each other, meaning each deformation space 2a is a closed-cell structure and not interconnected. Therefore, the pen tip 2 contains multiple deformation spaces 2a. It should be noted that this invention does not limit the number of deformation spaces 2a. Adjustments can be made according to the actual needs of the product and the user's habits and requirements. For example, if the user prefers a lighter, smoother writing touch, the number of deformation spaces 2a should be reduced to minimize the overall deformation of the pen tip 2 under pressure. This would result in a less significant increase in the contact area between the pen tip 2 and the screen, reducing frictional resistance and damping. Conversely, if the user prefers a heavier, more damped writing experience, more deformation spaces 2a should be added to increase the overall deformation of the pen tip 2 under pressure, thereby increasing frictional resistance with the screen.
[0039] In the production process of pen tip 2, the rate of foaming reaction and the amount of bubbles generated can be controlled by adjusting the type, concentration, and amount of foaming agent. Low concentrations of foaming agent help generate smaller bubbles, while high concentrations cause bubbles to form and merge rapidly, thus affecting the number and size of bubbles. Furthermore, the main characteristic of the extrusion process is low-temperature extrusion, which yields high-quality foam with small bubble diameters, a large number of cells, uniform cell size, and consistent density. Excessive extrusion temperature leads to uneven gas dispersion, gas instability, larger cell diameters, gas escape, and a decrease in the number of bubbles. Extrusion rate does not affect the foaming ratio or extrusion pressure. The extrusion process is relatively complex; key points should be mastered. The melt must be fully plasticized in the extruder before foaming to avoid foaming within the machine or die. Foaming begins once the melt leaves the die, and die pressure has the greatest impact on the foaming ratio. High extrusion speeds result in thinner skins.
[0040] It should be noted that this invention does not limit the specific shape of the deformation space 2a. When the pen tip 2 of the stylus 100 is manufactured using a foaming process, the number of internal bubbles can be controlled by adjusting the type, concentration, and amount of foaming agent. During the foaming process, the shape of the deformation space 2a (i.e., the internal bubbles) can be spherical, irregularly shaped, or polyhedral. Spherical bubbles are generally the most ideal shape because they provide the largest surface area to volume ratio, thereby optimizing the damping feel and touch experience of the pen tip 2. However, the actual bubble shape may vary due to differences in material formulation, processing technology, and mold design. In the stylus 100 tip, the bubble structure helps to provide the damping feel desired by the user, thus simulating the feel of traditional writing instruments. By forming several deformation spaces 2a inside the stylus 100 tip, these spaces can cause the pen tip 2 material to deform under pressure, thereby increasing the contact area between the pen tip 2 and the screen, increasing frictional resistance, and increasing damping feel. This design can provide a more natural touch, writing, and drawing experience. The specific shape and number of bubbles need to be determined based on the size of the pen tip 2, the material properties, and the desired user experience to achieve the ideal damping feel and touch effect.
[0041] In the pen body 1 structure of the stylus 100 proposed in this utility model, the pen body 1 includes a housing 1a, a battery 3, and a circuit board. For details, please refer to further reference. Figure 3 The housing 1a has a receiving cavity 1b, within which a mounting bracket is provided. The mounting bracket includes a first receiving cavity and a second receiving cavity, spaced apart, each used to mount different circuit boards. The bottom wall of the mounting cavity has a contact portion 41, which communicates with the receiving cavity 1b and abuts against the end of the pen tip 2 facing away from the contact end face. A battery 3 is located in the receiving cavity 1b, and the circuit board is located within the receiving cavity of the mounting bracket, electrically connected to both the battery 3 and the contact portion 41. The mounting bracket is adhesively attached to the inner sidewall of the housing 1a. The circuit board includes a first circuit board 4 and a second circuit board 6. The first circuit board 4 controls various functions of the stylus 100, its main function being to generate and transmit electrical signals that couple with the touchscreen signal, thereby achieving precise positioning and pressure sensing. The circuit board typically includes an RF transmitter, pressure detection components, Bluetooth wireless communication circuitry, etc. These components work together to ensure that the stylus 100 can accurately simulate the touch effect of a finger, achieving advanced drawing and writing functions. The second circuit board 6 is used to control the start and stop of the stylus 100.
[0042] In one embodiment of this utility model, the pen tip 2 and the pen body 1 are detachably connected. For details, please refer to further details. Figures 3 to 4One end of the pen body 1 is provided with an internal threaded hole, and one end of the pen tip 2 is provided with a mounting post 21. The mounting post 21 is threaded to the internal threaded hole, thereby realizing a detachable connection. One end of the pen tip 2 is provided with a metal contact 23, which abuts against the contact part 41 of the first circuit board 4 to achieve conductivity.
[0043] It should be noted that this invention does not limit the material of the pen tip 2; it can be PE or EVA. The pen tip 2 of the stylus 100 can be made of either PE (polyethylene) or EVA (ethylene-vinyl acetate copolymer), each with its own advantages. PE is a lightweight, soft, and elastic material, but compared to EVA, PE is even softer, more stretchable, and non-toxic and odorless. EVA, on the other hand, has better flexibility and toughness, is resistant to acids and alkalis, resistant to organic solvents, and readily soluble in aromatics and chlorinated hydrocarbons. It also possesses excellent electrical insulation and low-temperature resistance; maintains good toughness at low temperatures, and is resistant to ozone and mold. When the EVA content is low, it is soft and has good impact strength similar to LDPE. When the VA content is high, it has rubber-like elasticity and greater transparency. Generally, EVA material has good feel, rubber elasticity, low-temperature softness, flexural strength, and crack resistance, and can withstand significant load impacts.
[0044] In one embodiment of this utility model, a tail eraser 11 is provided at the end of the pen body 1 away from the pen tip 2. The tail eraser 11 can erase any marks left on the screen by the tip of the stylus 100, thus facilitating the user's drawing, writing, etc. A charging interface 15 is provided in the center of the tail eraser 11, which can be used to charge the stylus 100 via an external data cable. In addition, the stylus 100 proposed in this utility model can also be charged wirelessly. Accordingly, a magnetic part 14 is provided on one side of the pen body 1, which is used to attach to the side of a tablet computer or other electronic device for fixation, and the stylus 100 can be charged by the other electronic device. A power switch 12 and a power indicator light 13 are also provided on the side of the pen body 1 facing away from the magnetic part 14. For details, please refer to further description. Figure 1 and Figure 2 The power switch 12 can control the stylus 100 to be turned on and off. When the stylus 100 is turned off, its standby time can be greatly improved.
[0045] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A stylus, characterized by The stylus comprises a stylus body and a stylus head, the stylus head is detachably arranged at one end of the stylus body, and the inside of the stylus head is formed with a plurality of deformation spaces which are isolated from each other, and the stylus head can be deformed to the deformation spaces when being pressed. The shape of the deformation space is configured as a polyhedral shape or a three-dimensional grid shape, and the deformation space is filled with crystal substances and / or crystal substances added in the base material of the stylus head.
2. The stylus of claim 1, wherein The shape of the deformation space is configured as a spherical shape.
3. The stylus of claim 1, wherein, The shape of the deformation space is configured as an irregular spherical shape.
4. The stylus of any one of claims 1 to 3, wherein, The stylus body comprises: a shell, the shell is formed with a containing cavity, the containing cavity is provided with a mounting bracket, the mounting bracket; a battery, the battery is arranged in the containing cavity; and a circuit board, the circuit board is arranged in the mounting bracket and located in the containing cavity, and the circuit board is electrically connected with the battery.
5. The stylus of claim 4, wherein, One end of the stylus body is provided with an internal threaded hole, and the stylus head is provided with a mounting column which is threadedly connected to the internal threaded hole.
6. The stylus of claim 5, wherein, The end of the stylus body away from the stylus head is provided with a charging port, and the periphery of the charging port is provided with a tail eraser.
7. The stylus of claim 5, wherein, The side of the mounting column towards the internal threaded hole is provided with a contact point, and the stylus body further comprises a contact part, the contact part is arranged in the containing cavity and exposed to the containing cavity, and the contact part is in contact with the contact point to conduct electricity.
8. The stylus of any one of claims 1 to 3, wherein, The material of the stylus head is PE material or EVA material.
9. The stylus of any one of claims 1 to 3, wherein, The stylus head is gradually contracted from the end close to the stylus body to the end away from the stylus body. The end of the stylus head is formed with an arc-shaped contact end face.