Touch pen
By providing a sealing structure in which the barrier member abuts the outer peripheral surface of the second electrode at the mounting hole of the stylus pen, the problem of water vapor entering the pen body is solved, the protective effect in a high humidity environment is achieved, and the durability of the electronic stylus pen is improved.
Patent Information
- Application Number
- CN202421884077.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-05
AI Technical Summary
In the prior art, in high humidity environment or salt spray water vapor test, the water vapor is easily entered from the gap between the pen body and the second electrode, resulting in corrosion and damage to the circuit board.
A stylus pen is designed, and a barrier is used to surround the hole wall connected to the mounting hole. The barrier is protruding relative to the hole wall and abuts with the outer peripheral surface of the second electrode to form a sealing structure to prevent water vapor from entering.
Effectively prevent water vapor from entering the pen body, ensure that the circuit is not damaged in high humidity environments or salt spray water vapor tests, and improve the reliability and service life of the electronic stylus.
Smart Images

Figure CN223078664U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of touch control, and particularly relates to a touch pen. Background Art
[0002] With the progress of technology, digital electronic information devices already have the function of trajectory input, and this function is usually realized by means of handwriting input. As an electronic handwriting pen for digital electronic information devices, it has been widely used. It can not only input text by handwriting, but also realize functions such as painting and point control operations. The electronic handwriting pens in related technologies include a pen shell, a pen tip, a bracket, a resonant circuit board, an inductor, a pen core, etc. In related technologies, after the pen body and the second electrode are assembled, this will cause water vapor to enter the pen body from the gap between the pen body and the second electrode in some high-humidity environments or salt spray water vapor tests, resulting in corrosion and damage of the circuit board. Summary of the Utility Model
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a touch pen, which can effectively prevent water vapor from entering the pen.
[0004] The touch pen according to the first aspect embodiment of the utility model includes: a pen body having a storage cavity and an installation hole, the storage cavity and the installation hole being communicated; a blocking member surrounding and connecting to the hole wall of the installation hole, and the blocking member protruding relative to the hole wall of the installation hole; a second electrode disposed in the installation hole, and the blocking member abutting against the outer peripheral surface of the second electrode.
[0005] The touch pen according to the embodiment of the utility model has at least the following beneficial effects: The outer wall of the part of the second electrode located in the installation hole abuts against the blocking member. The blocking member abutting against the second electrode plays a sealing role, and the sealing between the second electrode and the installation hole can prevent water vapor from entering the pen body in some high-humidity environments or salt spray water vapor tests, causing functional problems.
[0006] According to some embodiments of the utility model, a plurality of the blocking members are provided, and the plurality of blocking members are spaced along the depth direction of the installation hole.
[0007] According to some embodiments of the utility model, the blocking member is disposed at one end of the installation hole away from the storage cavity.
[0008] According to some embodiments of the utility model, the distance between the second electrode and the blocking member is 0.
[0009] According to some embodiments of the present utility model, the pen body includes a main body portion, a plurality of first protruding portions, and a plurality of second protruding portions. A storage cavity and an installation hole are formed in the main body portion. The first protruding portions are connected to the inner wall of the main body portion, protrude relative to the inner wall of the storage cavity, extend along the depth direction of the installation hole, and the plurality of first protruding portions are arranged along the circumferential direction of the installation hole. Each second protruding portion is connected to one of the first protruding portions, protrudes relative to the first protruding portion, abuts against the outer peripheral surface of the second electrode, and the distance between the second protruding portion and the second electrode is 0 to 0.03 mm.
[0010] According to some embodiments of the present utility model, a connection cylinder is provided inside the second electrode, and one end of the connection cylinder abuts against the inner wall of the second electrode. A clamping seat is arranged on the connection cylinder, a clamping groove is formed in the clamping seat, and a protrusion is arranged on the inner wall of the second electrode, and the protrusion is clamped to the groove wall of the clamping groove.
[0011] According to some embodiments of the present utility model, the pen body includes a main body portion, a plurality of first protruding portions, and a plurality of second protruding portions. The main body portion is provided with a storage cavity and an installation hole. The first protruding portions are connected to the hole wall of the main body portion, protrude relative to the inner wall of the storage cavity, extend along the depth direction of the main body portion, and the plurality of first protruding portions are arranged along the circumferential direction of the main body portion. Each second protruding portion is connected to one of the first protruding portions and protrudes relative to the first protruding portion. When the connection cylinder is installed in the second electrode, the second protruding portion can abut against the second electrode so that the protrusion is snapped into the clamping groove.
[0012] According to some embodiments of the present utility model, the touch pen further includes a first electrode. The second electrode includes a first portion and a second portion connected to each other. The first electrode includes a third portion and a fourth portion connected to each other. The first portion protrudes outside the storage cavity, the second portion is arranged in the storage cavity, the second electrode is provided with a first through hole, the third portion protrudes outside the first through hole and the storage cavity, the fourth portion is arranged in the first through hole, and there is a gap between the second electrode and the first portion. A filler is arranged in the gap.
[0013] According to some embodiments of the present utility model, the touch pen further includes a pen tip. The pen tip is provided with a first groove and a second groove. The first portion is arranged in the second groove, and the third portion is arranged in the first groove. The pen tip is connected to the filler, and the filler is located between the first groove and the second groove to separate the first groove and the second groove from each other.
[0014] According to some embodiments of the present utility model, the nib and the filling member are of an integral structure.
[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Description of the Drawings
[0016] The following further describes the present utility model in conjunction with the drawings and embodiments, where:
[0017] Figure 1 is a schematic cross-sectional view of an installation structure according to an embodiment of the present utility model;
[0018] Figure 2 is a schematic view of a connection cylinder according to an embodiment of the present utility model;
[0019] Figure 3 is a schematic view of a second electrode according to an embodiment of the present utility model;
[0020] Figure 4 is a schematic cross-sectional view of a pen body according to an embodiment of the present utility model;
[0021] Figure 5 is a schematic overall view according to an embodiment of the present utility model;
[0022] Figure 6 is a schematic view of a pen body provided with a plurality of blocking members according to an embodiment of the present utility model;
[0023] Figure 7 is a schematic view of a nib according to an embodiment of the present utility model.
[0024] Reference Signs:
[0025] Pen body 100, storage cavity 101, installation hole 102, body portion 110, first protruding portion 120, second protruding portion 130, blocking member 200, second electrode 300, connection cylinder 310, protrusion 301, connection cylinder 310, card seat 311, card slot 312, first electrode 400, first portion 500, second portion 600, third portion 700, fourth portion 800, filling member 900, nib 910, first groove 920, second groove 930. Detailed Description of the Embodiments
[0026] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.
[0027] In the description of the present utility model, it should be understood that when it comes to the description of directions, such as the directions or positional relationships indicated by up, down, front, back, left, right, etc., they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be construed as a limitation to the present utility model.
[0028] In the description of the present utility model, the meaning of "several" is more than one, the meaning of "multiple" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the number itself, while understandings such as "above", "below", "within", etc. include the number itself. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0029] In the description of the present utility model, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the relevant technical field can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.
[0030] Referring to Figures 1 to 7 As shown, a stylus pen according to the first embodiment of the present utility model includes: a pen body 100, a blocking member 200, and a second electrode 300. The main body of the pen body 100 is cylindrical. The pen body 100 has a storage cavity 101 inside. An installation hole 102 is provided at the front end of the pen body 100. The front end of the pen body 100 is a conical shell, and the front end of the conical shell gradually narrows. The pen body 100 is made of plastic or a composite material of plastic and metal. An anti-slip layer can also be provided on the outer side of the pen body 100 for easy use. An installation hole 102 is provided at the center of the front end of the conical shell. The blocking member 200 is circumferentially connected to the inner wall of the installation hole 102, and the blocking member 200 is integrally formed with the front end of the inner wall of the installation hole 102. The blocking member 200 is circular. The blocking member 200 protrudes relative to the hole wall of the installation hole 102. The second electrode 300 is made of metal. The second electrode 300 penetrates through the conical shell, passes through the installation hole 102. The second electrode 300 is a conical tube with a gradually narrowing front end. The outer wall of the part of the second electrode 300 located in the installation hole 102 abuts against the blocking member 200. The second electrode 300 functions as an electrode, and the blocking member 200 abutting against the outer wall of the second electrode 300 functions as a seal to prevent water vapor from entering the interior of the pen body 100 in some high-humidity environments or during salt spray water vapor tests, which may cause functional problems.
[0031] Referring to Figure 6As shown, it can be understood that a plurality of blocking members 200 are provided, and the plurality of blocking members 200 are arranged at intervals along the depth direction of the mounting hole 102. The more the number of the blocking members 200 is set, the better the sealing effect between the second electrode 300 and the mounting hole 102. However, the depth of the mounting hole 102 is limited and cannot accommodate too many blocking members 200. Therefore, the number of the blocking members 200 is selected in the range of 1 to 4.
[0032] Referring to Figure 1 As shown, it can be understood that if only one blocking member 200 is provided, the blocking member 200 is arranged at one end of the mounting hole 102 far from the storage cavity 101. The blocking member 200 is integrally formed with the front end of the inner wall of the mounting hole 102, which is convenient for demolding from the rear end after injection molding, and can also prevent water from entering the gap between the mounting hole 102 and the second electrode 300, avoiding water accumulation in the gap between the mounting hole 102 and the second electrode 300.
[0033] Referring to Figure 1 As shown, it can be understood that a zero-gap fit is adopted between the outer wall of the second electrode 300 and the blocking member 200, and the distance between the outer wall of the second electrode 300 and the blocking member 200 is 0. Through the zero-gap fit between the second electrode 300 and the blocking member 200, water vapor can be completely and effectively blocked outside the pen body 100, which can ensure that in some environments and salt spray water vapor tests, water will not enter the pen body 100 to cause functional problems.
[0034] Referring to Figure 1As shown, it can be understood that the pen body 100 includes a main body portion 110, a plurality of first protruding portions 120, and a plurality of second protruding portions 130. A storage cavity 101 and a mounting hole 102 are provided in the main body portion 110. A plurality of first protruding portions 120 are evenly arranged along the circumferential direction of the inner wall of the storage cavity 101, and the first protruding portions 120 are integrally formed with the main body portion 110. The number of the first protruding portions 120 is six. It can be foreseen that when the number of the first protruding portions 120 is too large, the installation difficulty will increase, and when the number of the first protruding portions 120 is too small, the installation accuracy will decrease. Therefore, using six symmetrically arranged first protruding portions 120 is the most reasonable choice. The extending direction of the first protruding portions 120 is the same as that of the main body portion 110. The cross-sectional area of the first protruding portions 120 is small to reduce the contact area between the first protruding portions 120 and the second electrode 300. The first protruding portions 120 abut against the outer side wall of the second electrode 300, and the first protruding portions 120 play a limiting role on the second electrode 300, effectively ensuring the assembly concentricity of the second electrode 300 and the main body portion 110. When the first protruding portions 120 are not provided, the second electrode 300 directly contacts the main body portion 110, which requires a high manufacturing accuracy. Due to a small dimensional error, the second electrode 300 may not be completely in close contact with the main body portion 110, resulting in the non-concentricity of the second electrode 300 and the main body portion 110 and affecting the writing experience of the user. By providing the first protruding portions 120 between the second electrode 300 and the main body portion 110, the dimensional problems caused by the mating of large surface extreme dimensions can be avoided. A clearance fit is adopted between the outer wall of the second electrode 300 and the first protruding portions 120. Through the small clearance fit or zero-clearance fit between the pen body 100 and the first protruding portions 120, the overall assembly concentricity can be effectively ensured, and the dimensional problems caused by the mating of large surface extreme dimensions can be avoided. Each second protruding portion 130 is connected to a first protruding portion 120. The second protruding portion 130 protrudes relative to the first protruding portion 120, and the second protruding portion 130 abuts against the outer peripheral surface of the second electrode 300. The second protruding portion 130 further reduces the contact area with the second electrode 300. The clearance between the outer wall of the second electrode 300 and the second protruding portion 130 is 0 - 0.03 mm.
[0035] Referring to Figure 2 , Figure 3 As shown, it can be understood that chamfers are provided on both the protrusion 301 and the first protruding portion 120. The chamfers are provided to play a guiding role when installing the second electrode 300 and the connecting cylinder 310, thereby improving the installation speed.
[0036] Referring to Figure 1As shown, a connecting tube 310 is provided inside the second electrode 300, and the rear end of the connecting tube 310 extends out of the second electrode 300. The front end of the connecting tube 310 is also set to be conical, and the outer size of the front end of the connecting tube 310 matches the size of the inner wall of the second electrode 300, and the front end of the connecting tube 310 abuts against the inner wall of the second electrode 300. The outer wall of the connecting tube 310 supports the inner wall of the second electrode 300, preventing the first protrusion 120 from exerting too much pressure on the second electrode 300, causing local deformation of the second electrode 300. Four clamping seats 311 are evenly arranged around the connecting tube 310, and a clamping groove 312 is provided on the side of the clamping seat 311 away from the connecting tube 310, and an annular protrusion 301 embedded in the clamping groove 312 is provided on the inner wall of the rear end of the second electrode 300. When the connecting cylinder 310 is installed in the second electrode 300, the protrusion 301 is clamped in the clamping groove 312, and the clamping groove 312 and the annular protrusion 301 cooperate to play the role of axial limiting the second electrode 300. The outer wall of the connecting cylinder 310 is also provided with a limiting boss, and the size of the limiting boss is larger than the size of the rear end of the second electrode 300. The limiting boss can be abutted against the rear end of the second electrode 300 to limit the stroke of the second electrode 300 moving backward. The connecting cylinder 310 can push the second electrode 300 to move forward. The second electrode 300 can also be pre-assembled to the connecting cylinder 310 through the clamping groove 312 and the annular protrusion 301.
[0037] The pen body 100 includes a main body 110, a plurality of first protrusions 120 and a plurality of second protrusions 130. The storage cavity 101 and the mounting hole 102 are arranged on the main body 110. The inner wall of the storage cavity 101 is evenly provided with a plurality of first protrusions 120 along the circumference of the main body 110. The first protrusions 120 are integrally formed with the main body 110. The number of the first protrusions 120 is 6. It can be foreseen that too many first protrusions 120 will increase the difficulty of installation. Too few first protrusions 120 will reduce the installation accuracy. Therefore, it is the most reasonable choice to use 6 symmetrically arranged first protrusions 120, and the extension direction of the first protrusions 120 is the same as the extension direction of the main body 110. The cross-sectional area of the first protrusion 120 is small to reduce the contact area between the first protrusion 120 and the second electrode 300. The first protrusion 120 abuts against the outer side wall of the second electrode 300. Each second protrusion 130 is connected to a first protrusion 120, and the second protrusion 130 protrudes relative to the first protrusion 120. The position of the second protrusion 130 matches the protrusion 301 to push the protrusion 301 into the card slot 312. The projection of the second protrusion 130 in the front-to-back direction is 1mm to 3mm away from the projection position of the protrusion 301 in the front-to-back direction. When the connecting tube 310 is installed in the second electrode 300, the second protrusion 130 abuts against the second electrode 300 in front of the protrusion 301, so that the protrusion 301 is not easy to be separated from the card slot 312.
[0038] ReferenceFigure 5 As shown, it can be understood that there is a gap between the second electrode 300 and the hole wall of the mounting hole 102. The stylus further includes a seal, which is disposed in the gap. The seal is used to seal the gap between the second electrode 300 and the hole wall of the mounting hole 102 to prevent external water vapor from entering the pen body 100. The seal can be a ring made of rubber or other materials.
[0039] Referring to Figure 7 As shown, it can be understood that the stylus further includes a first electrode 400. The second electrode 300 includes a first part 500 and a second part 600 that are connected to each other. The first electrode 400 includes a third part 700 and a fourth part 800 that are connected to each other. The first part 500 protrudes outside the storage cavity, the second part 600 is disposed in the storage cavity, the second electrode 300 is provided with a first through hole, and the first electrode 400 passes through the first through hole opened in the second electrode 300. The third part 700 protrudes outside the first through hole and the storage cavity, the fourth part 800 is disposed in the first through hole, and there is a gap between the second electrode 300 and the first part 500; a filler 900 is disposed in the gap between the second electrode 300 and the first part 500. The two sides of the filler 900 can respectively abut against the second electrode and the first part 500, which can effectively avoid abnormal sounds during writing. The filler 900 can also prevent water vapor from entering the interior of the pen body 100.
[0040] Referring to Figure 5 As shown, it can be understood that the stylus further includes a nib 910. The nib 910 is provided with a first groove 920 and a second groove 930. The first part 500 is disposed in the second groove 930, and the third part 700 is disposed in the first groove 920; the nib 910 is connected to the filler 900, and the filler 900 is located between the first groove 920 and the second groove 930 to separate the first groove 920 and the second groove 930 from each other. After the filler 900 is connected to the nib 910, on the one hand, it is not only convenient for installation and improves installation efficiency. On the other hand, after the filler 900 separates the first groove 920 and the second groove 930, the filler 900 can also separate the first electrode 400 and the second electrode, that is, the filler 900 is in the first gap between the first part 500 and the third part 700. The material of the nib 910 can be rubber. The rubber nib 910 is softer, has a soft touch, is smoother to use, and will not scratch the screen surface.
[0041] Referring to Figure 5 As shown, it can be understood that the nib 910 and the filler 900 are of an integral structure. The one-piece forming process can improve the manufacturing efficiency, and the nib 910 and the filler 900 made by the one-piece forming process have higher strength and are not easily damaged.
[0042] Referring to Figures 1 to 5As shown, it can be understood that the stylus further includes a battery and a PCB board. The battery and the PCB board are disposed within the pen body 100. The battery powers the PCB board, and the PCB board is connected to the second electrode 300 and the first electrode 400 to achieve the touch function.
[0043] Installation steps: Pre-connect the refill to the writing end, then insert the refill into the mounting hole 102 at the front end of the conical housing. Assemble the second electrode 300 and the connecting cylinder 310 in advance through the card slot 312 and the protrusion 301. Then, place the combination of the second electrode 300 and the connecting cylinder 310 into the pen barrel until the first protruding portion 120 on the inner wall of the conical housing abuts tightly against the outer wall of the second electrode 300 and the blocking member 200 seals the gap between the second electrode 300 and the mounting hole 102.
[0044] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present utility model. In addition, the embodiments of the present utility model and the features in the embodiments can be combined with each other without conflict.
Claims
1. A stylus pen, characterized in that, Comprising: A pen body having a storage cavity and a mounting hole, the storage cavity and the mounting hole being in communication; A blocking member circumferentially connected to the hole wall of the mounting hole, and the blocking member protruding relative to the hole wall of the mounting hole; A second electrode disposed in the mounting hole, and the blocking member abutting against the outer peripheral surface of the second electrode.
2. The stylus according to claim 1, wherein A plurality of the blocking members are provided, and the plurality of blocking members are spaced apart in the depth direction of the mounting hole.
3. The stylus according to claim 1, wherein, The blocking member is disposed at an end of the mounting hole remote from the storage cavity.
4. The stylus according to claim 1, wherein The distance between the second electrode and the blocking member is 0.
5. The stylus according to claim 1, wherein, The pen body includes a main body portion, a plurality of first protruding portions, and a plurality of second protruding portions. The storage cavity and the mounting hole are formed in the main body portion. The first protruding portions are connected to the inner wall of the main body portion, the first protruding portions protruding relative to the inner wall of the storage cavity, the first protruding portions extending in the depth direction of the mounting hole, and the plurality of first protruding portions being circumferentially arranged along the mounting hole; each of the second protruding portions is connected to one of the first protruding portions, the second protruding portions protruding relative to the first protruding portions, the second protruding portions abutting against the outer peripheral surface of the second electrode, and the distance between the second protruding portions and the second electrode being 0 to 0.03 mm.
6. The stylus according to claim 1, characterized in that, A connecting cylinder is provided in the second electrode, one end of the connecting cylinder abutting against the inner wall of the second electrode; a clamping seat is provided on the connecting cylinder, the clamping seat having a clamping groove, and a protrusion is provided on the inner wall of the second electrode, the protrusion being snap-fitted to the groove wall of the clamping groove.
7. The stylus according to claim 6, characterized in that The pen body includes a main body portion, a plurality of first protruding portions, and a plurality of second protruding portions. The storage cavity and the mounting hole are provided in the main body portion. The first protruding portions are connected to the hole wall of the main body portion, the first protruding portions protruding relative to the inner wall of the storage cavity, the first protruding portions extending in the depth direction of the main body portion, and the plurality of first protruding portions being circumferentially arranged along the main body portion; each of the second protruding portions is connected to one of the first protruding portions, the second protruding portions protruding relative to the first protruding portions; when the connecting cylinder is mounted in the second electrode, the second protruding portions can abut against the second electrode so that the protrusions are snapped into the clamping grooves.
8. The stylus according to claim 1, characterized in that, The touch pen further includes a first electrode. The second electrode includes a first portion and a second portion connected to each other. The first electrode includes a third portion and a fourth portion connected to each other. The first portion protrudes outside the storage cavity, the second portion is disposed in the storage cavity, the second electrode is provided with a first through hole, the third portion protrudes outside the first through hole and the storage cavity, the fourth portion is disposed in the first through hole, and there is a gap between the second electrode and the first portion; A filling member disposed in the gap.
9. The stylus according to claim 8, wherein, The touch pen further includes a pen tip. The pen tip is provided with a first groove and a second groove. The first portion is disposed in the second groove, and the third portion is disposed in the first groove; the pen tip is connected to the filling member, and the filling member is located between the first groove and the second groove to separate the first groove and the second groove from each other.
10. The stylus according to claim 9, wherein The nib and the filling member are of an integral structure.