CN212112420U - Pen point pressure sensing structure and electronic pen - Google Patents
Pen point pressure sensing structure and electronic pen Download PDFInfo
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- CN212112420U CN212112420U CN202020610810.XU CN202020610810U CN212112420U CN 212112420 U CN212112420 U CN 212112420U CN 202020610810 U CN202020610810 U CN 202020610810U CN 212112420 U CN212112420 U CN 212112420U
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Abstract
The utility model provides a nib pressure-sensitive structure and an electronic pen, which comprises a nib, a nib bracket, a pressure sensor and a pen body, wherein one end of the nib bracket is connected with the nib, and the other end is provided with a pressure head; the action surface of the pressure head facing the pressure sensor is a spherical surface, and the spherical center of the spherical surface is the end surface which is contacted with the writing surface when the pen point writes; one side of the pressure sensor, which is far away from the pressure head, is abutted against the pen body. On pressure sensor was transmitted to the pressure head of nib writing pressure through the nib support, because the working face of pressure head was on the terminal surface of contact writing surface when the nib was write for sphere and centre of sphere, consequently personally submitted certain inclination when writing with writing at the nib, the nib has the rotation of a miniangle around the centre of sphere that is located on the terminal surface, and the nib support transmits the effort direction that maintains all the time on the axis direction of body of a pen for pressure sensor. By the aid of the mode, pressure loss in the transmission process of the writing pressure of the pen point is effectively reduced, and the accuracy of the pressure sensor for detecting the writing pressure of the pen point is improved.
Description
Technical Field
The utility model relates to the electronic equipment field especially relates to a structure and electronic pen are felt to nib pressure.
Background
The existing electronic pen is usually used in cooperation with a touch pad, a tablet computer and other devices, and not only can write characters like a handwriting pad, but also can draw out well-arranged images according to the magnitude of force.
The pressure-sensitive structure of the existing electronic pen is mostly composed of a pressure head connected with the tail part of a pen point and a pressure sensor arranged in a pen body and connected with the pressure head. When a user holds the electronic pen to write or click, the pen point moves inwards to drive the press head to touch and press the pressure sensor, so that the pressure sensor generates corresponding electric signals to the electronic equipment such as the touch pad and the tablet personal computer.
However, the existing electronic pen has the following disadvantages: when the nib and the writing surface incline at a certain angle for writing, the writing pressure of the nib has large pressure loss in the process of transmitting the writing pressure to the pressure sensor, so that the writing pressure detected by the pressure sensor is not accurate enough.
Disclosure of Invention
The utility model aims at providing a structure and electronic pen are felt to nib pressure to reduce the loss of pressure of writing pressure in the transmission course, improve the pressure sense detection accuracy of electronic pen.
The technical scheme of the utility model is that:
a nib pressure-sensitive structure comprises a nib, a nib support, a pressure sensor and a pen body, wherein the nib, the nib support and the pressure sensor are sequentially arranged along the axial direction of the pen body; the pen point support and the pressure sensor are arranged inside the pen body; one end of the pen point support is connected with the pen point, and the other end of the pen point support is provided with a pressure head; the action surface of the pressure head facing the pressure sensor is a spherical surface, and the spherical center of the spherical surface is positioned on the end surface of the writing surface contacted with the pen point during writing; one side of the pressure sensor, which is far away from the pressure head, is abutted against the pen body.
Furthermore, the pen point pressure sensing structure also comprises a pre-pressing spring; the pre-pressing spring is arranged between the pen point support and the pen body and used for providing pre-pressing force in the axial direction of the pen body.
Furthermore, a first convex part is arranged at one end of the pen point support connected with the pen point; the first protruding part is provided with a pen point groove, and a pen point is inserted into the pen point groove; the pre-pressing spring is a cylindrical spring and is sleeved on the first bulge part; one end of the pre-pressing spring is connected with the pen body in an abutting mode, and the other end of the pre-pressing spring is connected with the pressure head in an abutting mode.
Furthermore, the pen point pressure sensing structure also comprises a pressure transmission module arranged between the pressure sensor and the pressure head; one end of the pressure transmission module is connected with the pressure head in an abutting mode, and the other end of the pressure transmission module is connected with the pressure sensor in an abutting mode.
Further, the pressure transmission module comprises a pressure support, a piston module, a collapsing spring and a pressing block; the pressure bracket is abutted against the pressure head; the pressure bracket is provided with a first groove; one end of the piston module, which faces the pressure support, is provided with a second bulge, and the second bulge is arranged in the first groove; the collapsing spring is sleeved on the second bulge; one end of the collapsing spring is abutted against the bottom of the first groove, and the other end of the collapsing spring is abutted against the piston module; one end of the piston module facing the pressure sensor is provided with a second groove; one end of the pressing block is arranged in the second groove, and the other end of the pressing block is abutted to the pressure sensor.
Further, the pen body comprises a guide bracket; the guide support is hollow to form an inner space for accommodating the pen point support and the pressure transmission module; the shape of the inner space is matched with the pen point support and the pressure transmission module, and the pen point support and the pressure transmission module are guided to move along the axial direction of the pen body.
Further, the nib and the first bulge are in interference fit.
Further, the pressing block is in interference fit with the second groove.
The utility model also provides an electronic pen, including above-mentioned nib pressure structure.
The utility model provides a nib pressure-sensitive structure and an electronic pen, which comprises a nib, a nib bracket, a pressure sensor and a pen body, wherein the nib, the nib bracket and the pressure sensor are sequentially arranged along the axial direction of the pen body; the pen point support and the pressure sensor are arranged inside the pen body; one end of the pen point support is connected with the pen point, and the other end of the pen point support is provided with a pressure head; the action surface of the pressure head facing the pressure sensor is a spherical surface, and the spherical center of the spherical surface is the end surface which is contacted with the writing surface when the pen point writes; one side of the pressure sensor, which is far away from the pressure head, is abutted against the pen body. On pressure sensor was transmitted to the pressure head that the nib write pressure passed through the nib support, because the pressure head was the sphere towards the working face of pressure sensor one side, and the centre of sphere of this sphere lies in the nib and writes on the terminal surface of contact writing surface, consequently personally submits certain inclination when nib and writing and writes, the nib has the rotation of a small angle around the centre of sphere that lies in on the terminal surface, and the nib support transmits the effort direction that transmits for pressure sensor on the axis direction of body of a pen all the time. By the aid of the mode, pressure loss in the transmission process of the writing pressure of the pen point is effectively reduced, and the accuracy of the pressure sensor for detecting the writing pressure of the pen point is improved.
Drawings
Fig. 1 is a schematic structural view of a nib pressure-sensitive structure according to an embodiment of the present invention;
fig. 2 is a partially enlarged view of the region M in fig. 1.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, or indirectly coupled through intervening agents, both internally and/or in any other manner known to those skilled in the art. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
The first embodiment is as follows:
referring to fig. 1, a nib pressure-sensitive structure includes a nib 1, a nib holder 2, a pressure sensor 3, and a pen body 4, where the nib 1, the nib holder 2, and the pressure sensor 3 are sequentially arranged along an axial direction of the pen body 4; the pen point support 2 and the pressure sensor 3 are both arranged inside the pen body 4; one end of the pen point support 2 is connected with the pen point 1, and the other end is provided with a pressure head 22; the action surface of the pressure head 22 facing the pressure sensor 3 is a spherical surface, and the spherical center of the spherical surface is an end surface 1a which is contacted with the writing surface when the pen point 1 writes; the side of the pressure sensor 3, which faces away from the pressure head 22, abuts against the pen body 4.
In this embodiment, the writing pressure of the pen point is transmitted to the pressure sensor 3 through the pressing head 22 of the pen point holder 2, and since the action surface of the pressing head 22 toward the pressure sensor 3 side is a spherical surface and the center of sphere of the spherical surface is located on the end surface 1a of the writing surface contacted when the pen point 1 writes, when the pen point 1 and the writing surface are writing at a certain inclination angle, the pen point 1 rotates at a small angle around the center of sphere located on the end surface 1a, and the direction of the action force transmitted to the pressure sensor 3 by the pen point holder 2 is always maintained in the axial direction of the pen body 4. In this way, the pressure loss of the writing pressure of the pen point in the transmission process is effectively reduced, and the accuracy of the pressure sensor 3 for detecting the writing pressure of the pen point is improved.
The pen point pressure sensing structure also comprises a pre-pressing spring 5; the pre-tightening spring 5 is arranged between the pen point support 2 and the pen body 4 and used for providing pre-tightening force in the axial direction of the pen body 4.
Specifically, one end of the pen point support 2 connected with the pen point 1 is provided with a first convex part 21; the first bulge part 21 is provided with a pen point groove 21a, and the pen point 1 is inserted in the pen point groove 21 a; the pre-pressing spring 5 is a cylindrical spring and is sleeved on the first boss part 21; one end of the pre-pressing spring 5 is connected with the pen body 4, and the other end is connected with the pressure head 22.
The pen point pressure sensing structure further comprises a pressure transmission module 6 arranged between the pressure sensor 3 and the pressure head 22; one end of the pressure transmission module 6 abuts against the ram 22, and the other end abuts against the pressure sensor 3.
In this embodiment, the pen tip holder 2 does not directly contact the pressure sensor 3, and the writing pressure of the pen tip 1 is transmitted to the pressure transmission module 6 through the pen tip holder 2 and then transmitted to the pressure sensor 3 by the pressure transmission module 6. The requirement of the terminal client on the water outlet force of the electronic pen is higher and is between 0 g and 5g, so that the requirement on the dimensional accuracy of the internal component of the pressure-sensitive structure of the electronic pen is very high, any small dimensional change can be caused, and even the expansion caused by heat and the contraction caused by cold of the pressure-sensitive structural component due to the change of the environmental temperature can cause poor pressure-sensitive test. The utility model discloses a support split that will transmit writing pressure is nib support 2 and pressure transmission module 6, has greatly reduced the size accuracy requirement of pressure sense structure to single part, has improved the production qualification rate of nib pressure sense structure. Meanwhile, as the acting surface of the pressure head 22 is a spherical surface and the center of sphere is located on the end surface 1a of the pen point 1, the acting point of the pen point support 2 acting on the pressure transmission module 6 is always maintained at the same point of the pressure transmission module 6, and the direction of the acting force is consistent with the axial direction of the pen body 4, thereby effectively preventing the pressure loss caused by the increase of the friction force between the pressure transmission module 6 and the pen body 4 due to the non-centered acting force of the pen point support 2.
In the present embodiment, the pressure transmission module 6 includes a pressure bracket 61, a piston module 62, a collapse spring 64, and a pressure block 63; the pressure bracket 61 abuts the ram 22; the pressure bracket 61 is provided with a first groove 61 a; one end of the piston module 62 facing the pressure bracket 61 is provided with a second convex part 621, and the second convex part 621 is arranged in the first groove 61 a; the collapsing spring 64 is sleeved on the second protrusion 621; one end of the collapse spring 64 abuts against the bottom of the first groove 61a, and the other end abuts against the piston module 62; one end of the piston module 62 facing the pressure sensor 3 is provided with a second groove 62 a; one end of the pressing piece 63 is disposed in the second groove 62a, and the other end abuts against the pressure sensor 3.
The utility model discloses a pressure is write to the nib through nib support 2 transmission for pressure support 61, and the rethread is crumpled spring 64 and is transmitted for piston module 62, then transmits for briquetting 63 by piston module 62 again, finally transmits for pressure sensor 3 through briquetting 63 contact pressure sensor 3. The pressing block 63 is made of stainless steel, and the hardness of the pressing block meets the requirement of the pressure sensor 3.
When the electronic pen using the pen point pressure sensing mechanism falls or the pen point is over-pressurized, the crumple spring 64 contracts to form an avoidance space and absorb part of the pen point pressure, so that the pressure of the pressing block 63 abutting against the pressure sensor 3 cannot exceed the limit pressure which can be borne by the pressure sensor 3, the effect of protecting the pressure sensor 3 is achieved, and the pressure sensor 3 is prevented from being damaged due to overpressure.
In the present embodiment, the pen body 4 includes a guide bracket 41; the guide holder 41 is hollow inside to form an inner space for accommodating the pen tip holder 2 and the pressure transmission module 6; the shape of the inner space is matched with the pen point support 2 and the pressure transmission module 6, and the pen point support 2 and the pressure transmission module 6 are guided to move along the axial direction of the pen body 4.
Specifically, the inner space includes a first cavity 41a, a second cavity 41b and a third cavity 41 c; the first, second and third cavities 41a, 41b and 41c are all cylindrical cavities. The pre-pressing spring 5, the pressure head 22, the pressure bracket 61, the collapsing spring 64, the piston module 62 and the pressing block 63 are arranged in the third cavity 41 c; one end of the pre-pressing spring 5 is abutted against the guide bracket 41, and the other end is abutted against the pressure head 22; the pen point 1 is inserted into the pen point groove 21a through the first accommodating cavity 41 a; the first cavity 41a is matched with the shape of the pen point 1; the second cavity 41b is matched with the shape of the first bulge 21; the third cavity 41c is matched with the shapes of the pre-pressing spring 5, the pressure head 22, the pressure bracket 61 and the piston module 62; the pressure sensor 3 is provided at the outlet of the third chamber 41 c.
Through setting up this guide bracket 41, guide nib 1, nib support 2, pre-compaction spring 5, pressure support 61, the spring 64 that contracts of ulcerate, piston module 62 and stainless steel briquetting 63 carry out axial displacement in the inside of body of a pen 4, reduce the pressure and feel structural component and produce too big frictional force with body of a pen 4 because of the offset, and then produce great loss of pressure and even make this pressure sense structure normally work.
In this embodiment, the pen tip pressure sensing structure further includes a main board support 8; the main board bracket 8 is arranged inside the pen body 4 and is fixedly connected with the pen body 4; the side of the pressure sensor 3 facing away from the pressure transmission module 6 abuts the motherboard bracket 8.
The pressure sensor 3 is arranged on the main board support 8, can be electrically connected with the control module through the main board support 8, and converts the detected writing pressure into an electric signal to be transmitted to the control module.
The pressing block 63 is in interference fit with the second groove 62a of the piston module 62, the assembly structure is simple, the firm fixing effect can be guaranteed, and the product quality of the pressure-sensitive structure is further guaranteed.
The utility model also provides an electronic pen, including above-mentioned nib pressure structure. The electronic pen is also provided with a control module, a wireless transmission module and a switch module. The pressure sensor 3 of the pen point pressure sensing structure is electrically connected with the control module, and converts the detected writing pressure into an electric signal to be transmitted to the control module. The wireless transmission module and the switch module are electrically connected with the control module. The control module transmits the processed signals to terminal equipment such as a touch screen and a tablet personal computer through the wireless transmission module to simulate the writing force of the electronic pen. The electronic pen has a writing pressure sensing function, can realize handwriting input handwriting recognition, and can automatically adjust the thickness of the handwriting according to the handwriting pressure so as to draw out a well-arranged image.
The utility model provides a nib pressure is felt mechanism and is had electronic pen of this nib pressure and is felt mechanism, the working face towards pressure sensor 3 through the pressure head 22 with nib support 2 sets up to the sphere, and the centre of sphere of this sphere is located nib 1 and writes the terminal surface 1a of face when writing, reduced the nib and write pressure and transmit the loss of pressure that 3 in-process produced of pressure sensor, improved pressure sensor 3 and written the degree of accuracy that pressure detected to the nib, and then improved the quality of the product of using this nib pressure and feel mechanism.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (9)
1. A pen point pressure-sensitive structure is characterized by comprising a pen point, a pen point support, a pressure sensor and a pen body; the pen point, the pen point support and the pressure sensor are sequentially arranged along the axial direction of the pen body; the pen point support and the pressure sensor are arranged inside the pen body; one end of the pen point support is connected with the pen point, and the other end of the pen point support is provided with a pressure head; the action surface of the pressure head facing the pressure sensor is a spherical surface, and the center of the spherical surface is positioned on the end surface of the writing surface contacted by the pen point during writing; the pressure sensor deviates from one side of the pressure head and is abutted to the pen body.
2. The nib pressure-sensitive structure of claim 1, further comprising a pre-pressure spring; the pre-pressing spring is arranged between the pen point support and the pen body and used for providing pre-pressing force in the axial direction of the pen body.
3. The pen tip pressure-sensing structure of claim 2, wherein the end of the pen tip support connected with the pen tip is provided with a first convex part; the first protruding part is provided with a pen point groove, and the pen point is inserted into the pen point groove; the pre-pressing spring is a cylindrical spring and is sleeved on the first boss; one end of the pre-pressing spring is abutted to the pen body, and the other end of the pre-pressing spring is abutted to the pressure head.
4. The nib pressure sensing structure of claim 1, further comprising a pressure transfer module disposed between the pressure sensor and the pressure head; one end of the pressure transmission module is abutted to the pressure head, and the other end of the pressure transmission module is abutted to the pressure sensor.
5. The pen tip pressure sensing structure of claim 4, wherein the pressure transmission module comprises a pressure bracket, a piston module, a collapsing spring and a pressure block; the pressure bracket abuts against the pressure head; the pressure support is provided with a first groove; one end of the piston module, which faces the pressure support, is provided with a second bulge, and the second bulge is arranged in the first groove; the second bulge is sleeved with the crumple spring; one end of the collapsing spring is abutted against the bottom of the first groove, and the other end of the collapsing spring is abutted against the piston module; a second groove is formed in one end, facing the pressure sensor, of the piston module; one end of the pressing block is arranged in the second groove, and the other end of the pressing block is abutted to the pressure sensor.
6. The nib pressure-sensitive structure of claim 4, wherein the body comprises a guide bracket; the guide support is hollow to form an inner space for accommodating the pen point support and the pressure transmission module; the shape of the inner space is matched with the pen point support and the pressure transmission module, and the pen point support and the pressure transmission module are guided to move along the axial direction of the pen body.
7. The nib pressure-sensitive structure of claim 3, wherein the nib is in an interference fit with the first protrusion.
8. The nib pressure-sensitive structure of claim 5, wherein the pressing piece is in interference fit with the second groove.
9. An electronic pen comprising the pen tip pressure-sensitive structure of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020610810.XU CN212112420U (en) | 2020-04-21 | 2020-04-21 | Pen point pressure sensing structure and electronic pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020610810.XU CN212112420U (en) | 2020-04-21 | 2020-04-21 | Pen point pressure sensing structure and electronic pen |
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| Publication Number | Publication Date |
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| CN212112420U true CN212112420U (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020610810.XU Active CN212112420U (en) | 2020-04-21 | 2020-04-21 | Pen point pressure sensing structure and electronic pen |
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| CN (1) | CN212112420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113268172A (en) * | 2021-03-15 | 2021-08-17 | 荣耀终端有限公司 | Touch control pen and electronic equipment assembly |
-
2020
- 2020-04-21 CN CN202020610810.XU patent/CN212112420U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113268172A (en) * | 2021-03-15 | 2021-08-17 | 荣耀终端有限公司 | Touch control pen and electronic equipment assembly |
| CN113268172B (en) * | 2021-03-15 | 2022-07-05 | 荣耀终端有限公司 | Touch control pen and electronic equipment assembly |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 No.101 and 6 / F, No.4 factory building, no.6-6 Yanshan Avenue, Yanluo street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen xinzhiwang Electronic Co.,Ltd. Patentee after: Huizhou xinzhiwang Electronics Co.,Ltd. Address before: 518000 No.101 and 6 / F, No.4 factory building, no.6-6 Yanshan Avenue, Yanluo street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: Shenzhen xinzhiwang Electronic Co.,Ltd. Patentee before: Huizhou Xinwangda intelligent hardware Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210420 Address after: 518000 No.101 and 6 / F, No.4 factory building, no.6-6 Yanshan Avenue, Yanluo street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen xinzhiwang Electronic Co.,Ltd. Patentee after: Shenzhen Xinwei intelligent Co.,Ltd. Address before: 518000 No.101 and 6 / F, No.4 factory building, no.6-6 Yanshan Avenue, Yanluo street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: Shenzhen xinzhiwang Electronic Co.,Ltd. Patentee before: Huizhou xinzhiwang Electronics Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 518000 No.101, area B, 1st floor and 5th floor, No.4 factory building, 6-6 Yanshan Avenue, Yanchuan community, Yanluo street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Xinwei intelligent Co.,Ltd. Patentee after: Shenzhen xinzhiwang Electronic Co.,Ltd. Address before: 518000 Room 101, 6th floor, No.4 factory building, 6-6 Yanshan Avenue, Yanchuan community, Yanluo street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: Shenzhen xinzhiwang Electronic Co.,Ltd. Patentee before: Shenzhen Xinwei intelligent Co.,Ltd. |
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| CP03 | Change of name, title or address |