CN215599660U

CN215599660U - Capacitance pen

Info

Publication number: CN215599660U
Application number: CN202120648325.6U
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: 2022-01-21
Anticipated expiration: 2031-03-30

Abstract

The utility model discloses a capacitance 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 comprises a first arm, a second arm and a third arm which are sequentially connected, the side surface of the first arm, far away from the third arm, is fixed on the pen point shaft, the strain gauge is arranged on the second arm, and the side surface of the third arm, far away from the first arm, is fixed on the fixing structure. This strain transducer among capacitance pen novel structure, the side that first arm was kept away from to the third arm is fixed on fixed knot constructs, has increased elastomer and fixed knot structure's area of being connected effectively to make the cohesion of elastomer and fixed knot structure strengthened, improved capacitance pen structure's stability effectively.

Description

Capacitance pen

Technical Field

The utility model relates to the technical field of touch control equipment, in particular to a capacitance 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 control 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 capacitive pens to operate the touch screens.

The existing capacitance 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. In the prior art, the elastic body is generally U-shaped, and two ends of the U-shaped elastic body are respectively connected with the fixing structure, however, since the connection area of the end portion of the elastic body is small, the connection with the fixing structure is unstable, when the capacitive pen falls, the end portion of the elastic body may be separated from the fixing structure, in other words, the structural stability of the conventional capacitive pen is not good enough.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: a capacitance pen with a stable structure is provided.

In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a capacitance pen, include fixed knot structure and 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 including consecutive first arm, second arm and third arm, the side that the third arm was kept away from to first arm is fixed at the nib epaxially, the strainometer is located on the second arm, the side that the first arm was kept away from to the third arm is fixed on fixed knot constructs.

Further, the nib shaft includes a flat plate portion on which the first arm is fixed.

Furthermore, the flat plate portion is provided with a limiting convex strip for limiting the first arm.

Furthermore, the elastic body further comprises a fourth arm, and one end of the third arm, which is far away from the second arm, is bent and extended towards the direction close to the first arm to form the fourth arm.

Furthermore, one end of the fourth arm, which is far away from the third arm, is connected with the pen point shaft or the first arm.

Furthermore, one end of the fourth arm, which is far away from the third arm, is connected with the fixing structure.

Furthermore, a hole slot for the fourth arm to pass through is formed in the pen point shaft.

Further, the nib assembly further comprises an electrode assembly disposed on the nib shaft, and the strain gauge is disposed away from the electrode assembly.

Further, still include the chip subassembly, the chip subassembly is located on the nib axle, the chip subassembly respectively with the strainometer is taken and electrode subassembly electric connection.

Furthermore, the fixing structure further comprises a pen bracket arranged in the pen holder and/or a shielding component arranged in the pen holder.

The utility model has the beneficial effects that: this strain transducer among capacitance pen novel structure, the side that first arm was kept away from to the third arm is fixed on fixed knot constructs, has increased elastomer and fixed knot structure's area of being connected effectively to make the cohesion of elastomer and fixed knot structure strengthened, improved capacitance pen structure's stability effectively.

Drawings

FIG. 1 is an exploded view of a capacitive stylus according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a pen tip assembly in a capacitive pen according to a first embodiment of the present invention;

fig. 3 is a schematic structural diagram of a pen tip assembly in a capacitive pen according to a second 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. a hole groove; 22. an electrode assembly; 23. a strain sensor; 231. an elastomer; 2311. a first arm; 2312. a second arm; 2313. a third arm; 2314. a fourth arm; 232. a strain gauge;

3. a main control board;

4. a battery;

5. an antenna assembly;

6. a pen holder; 61. a window;

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 to 3, a capacitance pen includes a fixing structure and a pen point assembly 2 disposed in the fixing structure, the fixing structure includes a pen holder 1, the pen point assembly 2 includes a pen point 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 includes a first arm 2311, a second arm 2312 and a third arm 2313 which are connected in sequence, a side surface of the first arm 2311, which is far away from the third arm 2313, is fixed on the pen point shaft 21, the strain gauge 232 is disposed on the second arm 2312, and a side surface of the third arm 2313, which is far away from the first arm 2311, is fixed on the fixing structure.

From the above description, the beneficial effects of the present invention are: this strain sensor 23 in electric capacity pen novel structure, the third arm 2313 is kept away from the side of first arm 2311 and is fixed on fixed knot structure, has increased the area of being connected of elastomer 231 and fixed knot structure effectively to make the cohesion of elastomer 231 and fixed knot structure strengthened, improved the stability of electric capacity pen structure effectively.

Further, the nib shaft 21 includes a flat plate portion 211, and the first arm 2311 is fixed on the flat plate portion 211.

Further, a limiting protrusion 2111 for limiting the first arm 2311 is disposed on the flat plate portion 211.

As can be seen from the above description, the limiting protrusion 2111 can limit the first arm 2311, 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 first arm 2311 and prevent the first arm 2311 from being accidentally scratched in the assembling process.

Further, the elastic body 231 further includes a fourth arm 2314, and an end of the third arm 2313 away from the second arm 2312 is bent and extended in a direction close to the first arm 2311 to form the fourth arm 2314.

Further, an end of the fourth arm 2314 remote from the third arm 2313 is connected to the nib shaft 21 or the first arm 2311.

As can be seen from the above description, the elastic body 231 is in a square shape as a whole or forms a square structure in cooperation with the nib shaft 21, the fourth arm 2314 of the elastic body 231 can share the deformation of the elastic body 231, and the stress applied to the first arm 2311 is reduced, so that the service life of the elastic body 231 is prolonged. Meanwhile, by adopting the elastic body 231, the strain linear relation of the capacitance pen is improved under the conditions of different writing angles and inclination angles, and the capacitance pen has great advantages in subsequent chip design selection.

Further, an end of the fourth arm 2314 remote from the third arm 2313 is connected to the fixing structure.

As can be seen from the above description, the elastic body 231 is substantially 9-shaped as a whole, and the fourth arm 2314 of the elastic body 231 can share the deformation of the elastic body 231, so as to reduce the stress applied to the first arm 2311, thereby improving the service life of the elastic body 231. Meanwhile, by adopting the elastic body 231, the strain linear relation of the capacitance pen is improved under the conditions of different writing angles and inclination angles, and the capacitance pen has great advantages in subsequent chip design selection.

Further, the nib shaft 21 is provided with a hole 212 through which the fourth arm 2314 passes.

From the above description, the arrangement of the hole 212 on the stylus shaft 21 can optimize the internal space layout of the capacitance stylus.

Further, the nib assembly 2 further includes an electrode assembly 22 disposed on the nib shaft 21, and the strain gauge 232 is disposed away from the electrode assembly 22.

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 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.

Example one

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

The capacitance pen comprises a fixed structure, the fixed 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 the window 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 is electrically connected to the chip assembly, the strain sensor 23 includes an elastic body 231 and a strain gauge 232 disposed on the elastic body 231, the strain gauge 232 is disposed away from the electrode assembly 22, the chip assembly is electrically connected to the strain gauge 232 and the electrode assembly 22, the elastic body 231 includes a first arm 2311, a second arm 2312 and a third arm 2313 which are connected in sequence, a side of the first arm 2311 away from the third arm 2313 is fixed on the nib shaft 21, the strain gauge 232 is disposed on the second arm 2312, and a side of the third arm 2313 away from the first arm 2311 is fixed on a fixing structure.

To facilitate the assembly of the elastic body 231 and the nib shaft 21, the nib shaft 21 includes a flat plate portion 211, and the first arm 2311 is fixed on the flat plate portion 211. Preferably, the flat plate portion 211 is provided with two limiting protruding strips 2111 for limiting the first arm 2311, in this embodiment, the number of the limiting protruding strips 2111 is two, and the first arm 2311 is located between the two limiting protruding strips 2111. In detail, the first arm 2311 is welded and fixed to the flat plate portion 211; the third arm 2313 is welded to the shield assembly 7. In other embodiments, the third arm 2313 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 first arm 2311 may also be fixedly connected to the nib shaft 21 by means of screwing, gluing, clamping, or the like.

In order to make the internal structure of the capacitive pen 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, and specifically, the chip assembly is located between the first arm 2311 and the third arm 2313 and is fixed on the limiting protruding strip 2111, so that the limiting protruding strip 2111 not only plays a role in limiting and protecting the first arm 2311, but also plays a role in providing a mounting position for the chip assembly, and thus, one object is multipurpose.

In a preferred embodiment, in the present embodiment, the elastic body 231 further includes a fourth arm 2314, an end of the third arm 2313 away from the second arm 2312 is bent and extended toward the direction close to the first arm 2311 to form the fourth arm 2314, and an end of the fourth arm 2314 away from the third arm 2313 is connected to the fixing structure.

Example two

Referring to fig. 1 and fig. 3, a second embodiment of the present invention is: a capacitance pen can be used for touch control equipment such as a touch control operation mobile phone, a tablet personal computer and a navigator.

In a preferred embodiment, the elastic body 231 further includes a fourth arm 2314, an end of the third arm 2313 away from the second arm 2312 is bent and extended in a direction close to the first arm 2311 to form the fourth arm 2314, and an end of the fourth arm 2314 away from the third arm 2313 is connected to the nib shaft 21 or the first arm 2311. That is, in the present embodiment, the elastic body 231 itself has a square shape as a whole.

In conclusion, the strain sensor in the capacitive pen provided by the utility model has a novel structure, and the side surface of the third arm far away from the first arm is fixed on the fixed structure, so that the connection area between the elastic body and the fixed structure is effectively increased, the bonding force between the elastic body and the fixed structure is enhanced, and the structural stability of the capacitive pen is effectively improved; and the stress that first arm receives can be shared in the setting of fourth arm to the life of elastomer has been improved effectively.

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. The utility model provides a capacitance pen, includes fixed knot structure and locates the nib subassembly in the fixed knot structure, and 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 elastomer includes consecutive first arm, second arm and third arm, and the side that the third arm was kept away from to first arm is fixed on the nib axle, and the strainometer is located on the second arm, and the side that the first arm was kept away from to the third arm is fixed on fixed knot constructs.

2. The capacitive stylus of claim 1, wherein: the pen tip shaft includes a flat plate portion on which the first arm is fixed.

3. The capacitive stylus of claim 2, wherein: the flat plate part is provided with a limiting convex strip used for limiting the first arm.

4. The capacitive stylus of claim 1, wherein: the elastic body further comprises a fourth arm, and one end, far away from the second arm, of the third arm is bent and extended towards the direction close to the first arm to form the fourth arm.

5. The capacitive stylus of claim 4, wherein: one end of the fourth arm, which is far away from the third arm, is connected with the pen point shaft or the first arm.

6. The capacitive stylus of claim 4, wherein: one end of the fourth arm, which is far away from the third arm, is connected with the fixing structure.

7. The capacitive stylus of claim 6, wherein: and a hole groove for the fourth arm to pass through is formed in the pen point shaft.

8. The capacitive stylus of claim 1, wherein: the nib assembly further includes an electrode assembly disposed on the nib shaft, the strain gauge being disposed remotely from the electrode assembly.

9. The capacitive stylus of claim 8, 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.

10. The capacitive 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.