CN113220143A

CN113220143A - Touch control pen

Info

Publication number: CN113220143A
Application number: CN202110338966.6A
Authority: CN
Inventors: 付松; 吴远丽; 赵兴军; 宋喆; 虞成城
Original assignee: Shenzhen Sunway Communication Co Ltd
Current assignee: Shenzhen Sunway Communication Co Ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-08-06
Anticipated expiration: 2041-03-30
Also published as: CN113220143B

Abstract

The invention discloses a touch pen, which comprises a fixing structure and a pen point assembly arranged in the fixing structure, wherein the fixing structure comprises a pen holder, the pen point assembly comprises a pen point shaft and a strain sensor, the strain sensor comprises an elastic body and a strain gauge arranged on the elastic body, the elastic body is L-shaped, the end head of one end of the elastic body is connected with the fixing structure, the touch pen also comprises an elastic piece and a fixing piece, the fixing piece is fixed on the fixing structure, and the elastic piece is respectively connected with the fixing piece and the pen point shaft. The L-shaped elastic body is matched with the elastic piece and the fixing piece to form a double-support elastic buffer structure, so that the structure is novel and practical, and the problem of large deformation difference of the strain gauge under the same load condition when different writing angles are adopted can be effectively solved; compared with a single-arm elastic body, the elastic piece is added to share part of stress of the elastic body and reduce the deformation of the elastic body, so that the service life of the elastic body is prolonged; in addition, the strain linear relation of the touch control pen is good under the conditions of different writing angles and inclination angles.

Description

Touch control pen

Technical Field

The invention relates to the technical field of touch control equipment, in particular to a touch pen.

Background

With the increasing popularization of capacitive screens, more and more electronic products such as tablet computers, mobile phones and navigators begin to use the capacitive screens for operation control, and although the capacitive screens can be touched by fingers, the display screens are easily polluted due to the pollution of the fingers, the touch precision of the fingers is not good, and some professionals cannot achieve the required precision by the fingers, so more and more consumers seek high-quality touch pens to operate the touch screens.

The existing touch pen generally comprises a pen holder, a pen point assembly, a battery, an antenna, a main control panel and the like, wherein the pen point assembly, the battery, the antenna, the main control panel and the like are arranged in the pen holder, the pen point assembly comprises a pen point shaft, and a strain sensor and an electrode assembly which are respectively arranged on the pen point shaft, and the strain sensor comprises an elastic body and a strain gauge arranged on the elastic body.

Hua for all having applied for relevant patent protection in the aspect of the touch-control pen structure with the apple company, wherein Hua for the problem that different writing angles can be effectively solved to a U type elastomer that the company proposed, the relation difference between load and strainometer deformation is big, for avoiding the patent of friend, the applicant has proposed the touch-control pen of a novel structure.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: a stylus having a novel structure is provided.

In order to solve the technical problems, the invention adopts the technical scheme that: touch-control pen, including fixed knot structure with locate the nib subassembly in the fixed knot structure, fixed knot structure includes the pen-holder, the nib subassembly includes nib axle and strain sensor, strain sensor includes the elastomer and locates the strainometer on the elastomer, the elastomer is L style of calligraphy and the end connection fixed knot of one end constructs, still includes elastic component and mounting, the mounting is fixed on fixed knot constructs, the elastic component is connected mounting and nib axle respectively.

The invention has the beneficial effects that: the touch pen adopts the L-shaped elastic body to be matched with the elastic piece and the fixing piece to form a double-support elastic buffer structure, has a novel and practical structure, can effectively solve the problem of large deformation difference of the strain gauge under the same load condition when different writing angles are adopted, and achieves the same using effect and experience as the U-shaped elastic body; compared with a single-arm elastic body, the elastic piece is added to share part of stress of the elastic body and reduce the deformation of the elastic body, so that the service life of the elastic body is prolonged; in addition, the touch pen has good strain linear relation under different writing angles and inclination angles, and has great advantages in subsequent chip type selection design.

Drawings

Fig. 1 is an exploded view of a stylus according to a first embodiment of the invention;

fig. 2 is an exploded view of a nib assembly in a stylus according to a first embodiment of the present invention.

Description of reference numerals:

1. a pen holder;

2. a nib assembly; 21. a nib shaft; 211. a flat plate portion; 2111. limiting convex strips; 212. an installation part; 2121. a mounting plate portion; 2122. a cylinder; 22. an electrode assembly; 23. a strain sensor; 231. an elastomer; 2311. a first arm; 2312. a second arm; 232. a strain gauge; 24. an elastic member; 25. a fixing member; 251. a fixing plate; 252. a limiting structure;

3. a main control board;

4. a battery;

5. an antenna assembly;

6. a pen holder; 61. windowing;

7. a shield assembly.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 and 2, the stylus includes a fixing structure and a nib assembly 2 disposed in the fixing structure, the fixing structure includes a pen holder 1, the nib assembly 2 includes a nib shaft 21 and a strain sensor 23, the strain sensor 23 includes an elastic body 231 and a strain gauge 232 disposed on the elastic body 231, the elastic body 231 is L-shaped, and an end of one end of the elastic body 231 is connected to the fixing structure, and further includes an elastic member 24 and a fixing member 25, the fixing member 25 is fixed to the fixing structure, and the elastic member 24 is respectively connected to the fixing member 25 and the nib shaft 21.

From the above description, the beneficial effects of the present invention are: the touch pen adopts the L-shaped elastic body 231 to be matched with the elastic piece 24 and the fixing piece 25 to form a double-support elastic buffer structure, has a novel and practical structure, can effectively solve the problem that the strain difference of the strain gauge 232 is large under the same load condition when different writing angles are adopted, and achieves the same using effect and experience as the U-shaped elastic body 231; compared with the single-arm elastic body 231, the elastic element 24 can share part of the stress of the elastic body 231 and reduce the deformation of the elastic body 231, so that the service life of the elastic body 231 is prolonged; in addition, the touch pen has good strain linear relation under different writing angles and inclination angles, and has great advantages in subsequent chip type selection design.

Further, the elastic body 231 includes a first arm 2311 and a second arm 2312 connected with each other, the first arm 2311 is connected and fixed with the fixing structure, the second arm 2312 is fixed on the nib shaft 21, and the strain gauge 232 is disposed on the first arm 2311.

Further, the nib shaft 21 includes a flat plate portion 211, the second arm 2312 is fixed on the flat plate portion 211, and the flat plate portion 211 is provided with a limiting protruding strip 2111 for limiting the second arm 2312.

As can be seen from the above description, the limiting protrusion 2111 can limit the second arm 2312, so as to facilitate the assembly of the elastic body 231 and the nib shaft 21 and improve the consistency of the product; in addition, the limiting convex strip 2111 can also play a role in protecting the second arm 2312 and prevent the second arm 2312 from being accidentally scratched in the assembling process.

Further, the first arm 2311 is disposed away from the elastic member 24.

As can be seen from the above description, the first arm 2311 has a larger distance from the elastic member 24, which is beneficial for improving the sensitivity of the strain sensor 23.

Further, the pen point assembly 2 further includes an electrode assembly 22 disposed on the pen point shaft 21, a mounting portion 212 is disposed at one end of the pen point shaft 21, which is far away from the electrode assembly 22, and the elastic member 24 is mounted on the mounting portion 212.

As apparent from the above description, the installation of the mounting portion 212 can facilitate the assembly work of the elastic member 24.

Further, the stylus pen comprises a chip assembly, wherein the chip assembly is arranged on the stylus pen shaft 21 and is electrically connected with the strain gauge 232 and the electrode assembly 22 respectively.

Further, the fixing member 25 includes a fixing plate 251 and a limiting structure 252 disposed on the fixing plate 251.

As can be seen from the above description, the position-limiting structure 252 can limit the position of the elastic element 24, so as to facilitate the assembly of the elastic element 24.

Further, the elastic member 24 is a spring, and one end of the spring is engaged with the limiting structure 252.

As can be seen from the above description, the limiting structure 252 can prevent the elastic element 24 from deviating, which is beneficial for ensuring the structural stability of the stylus.

Further, the limiting structure 252 is annular or cylindrical.

As can be seen from the above description, the limiting structure 252 is simple in structure and easy to form.

Further, the fixing structure further comprises a pen support 6 arranged in the pen holder 1 and/or a shielding component 7 arranged in the pen holder 1.

As can be seen from the above description, the specific installation position of the fixing member 25 is various and can be set as required, which is beneficial to enriching the diversity of the stylus.

Example one

Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: the touch pen can be used for touch control equipment such as a mobile phone, a tablet personal computer and a navigator.

The touch control pen comprises a fixing structure, the fixing structure comprises a pen holder 1, a pen point component 2, a chip component (not shown), a main control board 3, a battery 4 and an antenna component 5 are arranged in the pen holder 1, the antenna component 5, the chip component and the battery 4 are respectively electrically connected with the main control board 3, the pen point component 2 is located at the head of the pen holder 1, in this embodiment, the fixing structure further includes a pen support 6 and a shielding component 7, the pen support 6 and the shielding component 7 are respectively arranged in the pen holder 1, the pen support 6 is connected with the pen point component 2, shielding subassembly 7 covers and establishes nib subassembly 2 is in order to shield nib subassembly 2, antenna module 5 the main control board 3 with battery 4 fixes respectively on pen support 6, specifically, nib subassembly 2 pass through shielding subassembly 7 with pen support 6 is connected fixedly. It should be noted that, in some other embodiments, the pen holder 6 and/or the shielding assembly 7 may not be provided in the fixing structure, and in this case, the pen tip assembly 2, the antenna assembly 5, the main control board 3, and the battery 4 may be directly fixed on the pen barrel 1.

For convenient charging, be equipped with wireless charging module on the main control board 3, wireless charging module with the main control board 3 electricity is connected, have on the pen support 6 corresponding to windowing 61 that wireless charging module set up.

Specifically, the nib assembly 2 includes a nib shaft 21, an electrode assembly 22 and a strain sensor 23, the electrode assembly 22 and the chip assembly are electrically connected, the strain sensor 23 includes an elastic body 231 and a strain gauge 232 disposed on the elastic body 231, the elastic body 231 is L-shaped, the elastic body 231 is respectively connected and fixed with the nib shaft 21 and the fixing structure, the nib assembly 2 further includes an elastic member 24 and a fixing member 25, the fixing member 25 is fixed on the fixing structure, and the elastic member 24 is respectively connected with the fixing member 25 and the nib shaft 21.

More specifically, the elastic body 231 includes a first arm 2311 and a second arm 2312 connected with each other, the first arm 2311 is fixedly connected with the fixing structure, the second arm 2312 is fixedly arranged on the nib shaft 21, and the strain gauge 232 is arranged on the first arm 2311. Preferably, the nib shaft 21 includes a flat plate portion 211, the second arm 2312 is fixed on the flat plate portion 211, the flat plate portion 211 is provided with two limiting protruding strips 2111 for limiting the second arm 2312, and the second arm 2312 is located between the two limiting protruding strips 2111. As a preferred embodiment, the end of the first arm 2311, which is far away from the second arm 2312, is fixed on the fixing structure, so that the assembly difficulty of the stylus pen can be reduced, the material can be saved, and the response sensitivity of the strain gauge 232 can be ensured.

In order to make the internal structure of the stylus more compact and shorten the conduction distance between the electrode assembly 22 and the chip assembly, it is preferable that the chip assembly is disposed on the flat plate portion 211, the chip assembly is electrically connected to the strain gauge 232 and the electrode assembly 22, and it is further preferable that the chip assembly is fixed to the limiting protruding strip 2111, so that the limiting protruding strip 2111 not only plays a role in limiting and protecting the second arm 2312, but also plays a role in providing a mounting position for the chip assembly, and thus, one object is multipurpose.

In detail, the first arm 2311 is welded and fixed to the shielding assembly 7, the second arm 2312 is welded and fixed to the flat plate portion 211, and the fixing member 25 is welded and fixed to the shielding assembly 7. In other embodiments, the first arm 2311 can also be directly fixed on the pen bracket 6 or the pen holder 1, and the specific fixing mode can be selected from screw joint, adhesive joint, clamping and the like; the fixing piece 25 can also be directly fixed on the pen bracket 6 or the pen holder 1, and the specific fixing mode can be selected from screw connection, glue connection, clamping connection and the like; the second arm 2312 may also be fixedly connected to the nib shaft 21 by means of screwing, gluing, clamping, or the like.

To further ensure the sensitivity of the strain sensor 23, a mounting portion 212 is provided at an end of the stylus shaft 21 away from the electrode assembly 22, the elastic member 24 is mounted on the mounting portion 212, and the first arm 2311 is disposed away from the mounting portion 212, that is, the first arm 2311 is disposed away from the elastic member 24. In this way, a sufficient distance is maintained between the first arm 2311 and the elastic member 24.

In this embodiment, the elastic element 24 is a spring, the mounting portion 212 includes a mounting plate portion 2121 connected to the nib shaft 21 and a cylinder 2122 disposed on the mounting plate portion 2121, and an end of the spring is sleeved on the cylinder 2122. In a preferred embodiment, the nib shaft 21 and the mounting portion 212 are integrally formed as a single piece. In other embodiments, the elastic member 24 may have other structures, such as an X-shaped spring, a V-shaped spring, a rubber member, etc.

The fixing member 25 includes a fixing plate 251 and a limiting structure 252 disposed on the fixing plate 251, and one end of the spring is engaged with the limiting structure 252. In this embodiment, the limiting structure 252 is annular, and at this time, the other end of the spring is sleeved in the limiting structure 252 and abuts against the fixing plate 251. From this, it is difficult to see that the external diameter of cylinder 2122 is less than the internal diameter of spring, the external diameter of spring is less than limit structure 252's internal diameter can reduce nib subassembly 2 shared axial length space in the touch-control pen effectively like this for touch-control pen inside has more spaces can set up other components and parts. Of course, in other embodiments, the limiting structure 252 may be cylindrical.

Example two

The second embodiment of the invention provides further improvement on the pen bracket on the basis of the first embodiment, and specifically comprises the following steps: the pen support is a metal injection molding structural part, so that design and manufacture of the pen support structure can be facilitated.

In conclusion, the touch control pen provided by the invention adopts the L-shaped elastic body to cooperate with the elastic piece and the fixing piece to form a double-support elastic buffer structure, is novel and practical in structure, can effectively solve the problem that the strain gauge has large deformation difference under the same load condition when different writing angles are adopted, and achieves the same using effect and experience as the U-shaped elastic body; compared with a single-arm elastic body, the elastic piece is added to share part of stress of the elastic body and reduce the deformation of the elastic body, so that the service life of the elastic body is prolonged; in addition, the touch control pen has good strain linear relation under the conditions of different writing angles and inclination angles, and has great advantages in subsequent chip model selection design; the design of spacing sand grip not only plays spacing, improves the effect of product uniformity, still plays the effect of providing the mounted position for the chip subassembly, has realized that a thing is multi-purpose.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.

Claims

1. Touch-control pen, including fixed knot structure and locating the nib subassembly in the fixed knot structure, fixed knot structure includes the pen-holder, and the nib subassembly includes nib axle and strain sensor, and strain sensor includes the elastomer and locates the strainometer on the elastomer, its characterized in that: the elastic body is L-shaped, the end head of one end of the elastic body is connected with the fixing structure, the elastic body further comprises an elastic piece and a fixing piece, the fixing piece is fixed on the fixing structure, and the elastic piece is respectively connected with the fixing piece and the pen point shaft.

2. The stylus of claim 1, wherein: the elastic body comprises a first arm and a second arm which are connected, the first arm is fixedly connected with the fixing structure, the second arm is fixed on the pen point shaft, and the strain gauge is arranged on the first arm.

3. The stylus of claim 2, wherein: the nib shaft comprises a flat plate part, the second arm is fixed on the flat plate part, and the flat plate part is provided with a limiting convex strip for limiting the second arm.

4. The stylus of claim 2, wherein: the first arm is disposed away from the resilient member.

5. The stylus of claim 1, wherein: the nib subassembly is still including locating epaxial electrode subassembly of nib, the nib axle is kept away from the one end of electrode subassembly is equipped with the installation department, the elastic component install in on the installation department.

6. The stylus of claim 5, wherein: still include the chip subassembly, the chip subassembly is located on the nib axle, the chip subassembly respectively with the strainometer electrode subassembly electric connection.

7. The stylus of claim 1, wherein: the fixing piece comprises a fixing plate and a limiting structure arranged on the fixing plate.

8. The stylus of claim 7, wherein: the elastic piece is a spring, and one end of the spring is matched with the limiting structure.

9. The stylus of claim 8, wherein: the limiting structure is annular or columnar.

10. The stylus of claim 1, wherein: the fixing structure further comprises a pen support arranged in the pen holder and/or a shielding component arranged in the pen holder.