WO2021174799A1 - 一种笔头结构及被动式电容笔 - Google Patents

一种笔头结构及被动式电容笔 Download PDF

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Publication number
WO2021174799A1
WO2021174799A1 PCT/CN2020/114026 CN2020114026W WO2021174799A1 WO 2021174799 A1 WO2021174799 A1 WO 2021174799A1 CN 2020114026 W CN2020114026 W CN 2020114026W WO 2021174799 A1 WO2021174799 A1 WO 2021174799A1
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WO
WIPO (PCT)
Prior art keywords
pen
contact
structure according
contacts
connecting arm
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Application number
PCT/CN2020/114026
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English (en)
French (fr)
Inventor
李冬贵
Original Assignee
深圳市鸿合创新信息技术有限责任公司
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Filing date
Publication date
Application filed by 深圳市鸿合创新信息技术有限责任公司 filed Critical 深圳市鸿合创新信息技术有限责任公司
Priority to US17/908,927 priority Critical patent/US11775085B2/en
Priority to EP20923288.3A priority patent/EP4116802A4/en
Publication of WO2021174799A1 publication Critical patent/WO2021174799A1/zh

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means

Definitions

  • This application relates to the field of capacitive touch technology, and in particular to a pen tip structure and a passive capacitive pen.
  • the tip material of the passive capacitive pen of the related technology is generally conductive rubber and conductive plastic.
  • the conductivity of the conductive rubber can be satisfied, but the friction resistance between the conductive rubber and the glass is too large, and the writing is not smooth; the conductive plastic is too hard to produce deformation. If the pen tip is made into a round tip, the contact area is not enough, resulting in insufficient electrical signal, causing the problem of touch recognition failure; if the pen tip is made into a flat surface, if the pen tip cannot be kept in full surface contact during writing, the pen will break.
  • One of the objectives of the embodiments of the present application is to provide a pen tip structure and a passive capacitive pen, aiming to solve the problem that the pen tip structure in the related art cannot guarantee both conductivity and writing smoothness.
  • a writing structure including:
  • the pen body has a hollow structure, and a plurality of through holes are provided on the pen body;
  • the insert includes a plurality of contacts and a connecting arm connected between two adjacent contacts, the contacts are arranged corresponding to the through holes, and the connecting arm is arranged in the inner cavity of the pen body, The plurality of contacts are connected by the connecting arm to form an integral structure with elasticity, and a part of the structure of each of the contacts is exposed through the through hole to expose the pen body.
  • the exposed part of the contact at least partially exceeds the outer surface of the pen body.
  • the exposed part of the contact is at least partially coplanar with the outer surface of the pen body.
  • the pen body includes an end face and a side wall, and a plurality of through holes are provided on the end face and the side wall.
  • the outer surface of the end surface is a spherical surface
  • the outer surface of the side surrounding portion is a tapered surface
  • the diameter of the tapered surface gradually decreases toward the end surface
  • the spherical surface is The tapered surfaces are smoothly transitioned and connected.
  • the diameter of the side wall part is 6-10mm, and the diameter of the connecting part between the side wall part and the end face is 4-6mm, so that the pen body and the capacitive touch
  • the diameter of the contact surface of the glass surface of the control panel is 6-8mm.
  • the connecting arm includes a first connecting arm, and a plurality of the contacts and a plurality of the first connecting arms form a plurality of elastic strips, and each elastic strip extends spirally, and each elastic strip In the article, the adjacent contacts are connected by the first connecting arm.
  • each of the elastic strips is arranged in a ring shape; the connecting arm further includes a plurality of second connecting arms corresponding to the plurality of elastic strips respectively, and are located near the center of the ring shape of the elastic strip. The contact at one end is connected to one end of the second connecting arm.
  • the other ends of the plurality of second connecting arms corresponding to the plurality of elastic strips are directly connected together.
  • a contact is provided at the center of the ring, and the other ends of the plurality of second connecting arms corresponding to the plurality of elastic strips are all connected with the contact.
  • the contact is a columnar structure, and the end surface and the side surface of the columnar structure are transitionally connected by a smooth curved surface.
  • the end surface of the columnar structure is parallel to the outer surface of the pen body where the contact is located.
  • the end surface of the columnar structure and at least part of the smooth curved surface expose the pen body.
  • the material of the pen body and the material of the contact are different.
  • the pen body is made of conductive silica gel, and the contact is made of conductive plastic.
  • the position of the contact for contact with the glass surface is a round head structure, and the diameter of the round head structure is 1-1.5 mm.
  • the pitch of the round head structure is 0.8-1.2mm.
  • the size of the round head structure protruding from the outer surface of the pen head body is less than or equal to 0.2 mm.
  • a passive capacitive pen including the tip structure of the passive capacitive pen described above.
  • the beneficial effect of the pen tip structure provided by the embodiments of the present application is that a plurality of contacts are connected into a flexible overall structure by using a connecting arm.
  • a connecting arm When a user uses a passive capacitive pen to write, the contacts of the pen body and the capacitive pen are exposed.
  • the glass surface of the touch panel is in contact, because the overall structure formed by the contact and the connecting arm is elastic, so through the elastic deformation of the overall structure, the contact friction force during writing can be reduced, and a sufficient contact area can also be ensured to obtain sufficient The amount of electrical signal, thereby improving writing feel and writing fluency.
  • the beneficial effect of the passive capacitive pen provided by the embodiments of the present application is that by adopting the above-mentioned pen tip structure, the conductivity, the wear resistance of the pen tip structure and the writing smoothness of the pen tip structure of the passive capacitive pen are ensured.
  • Figure 1 is an exploded schematic diagram of a pen tip structure provided by an embodiment of the present invention
  • Figure 2 is a cross-sectional view of a pen tip structure provided by an embodiment of the present invention.
  • FIG. 3 is a schematic structural view from a perspective of the insert of the pen tip structure provided by the embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram from another perspective of the insert of the pen tip structure provided by the embodiment of the present invention.
  • Pen body 11, through hole; 12, end face; 13, side wall part; 14, inner cavity; 2. insert; 21, contact; 211, round head structure; 212, side surface; 213, end surface; 22.
  • the pen tip structure is made of conductive material and includes a pen tip body 1 and an insert 2.
  • the tip body 1 has a hollow structure, and a plurality of through holes 11 are provided on the tip body 1.
  • the insert 2 includes a plurality of contacts 21 and a connecting arm 22 connected between two adjacent contacts 21.
  • the contacts 21 are arranged corresponding to the through holes 11, and the connecting arm 22 is arranged in the inner cavity 14 of the pen body 1,
  • the plurality of contacts 21 are connected by the connecting arm 22 to form an integral structure with elasticity, and a part of the structure of the contacts 21 is exposed through the through hole 11 to expose the pen body 1.
  • the contact 21 extends out of the pen body 1, it is more convenient for the contact 21 to contact the glass surface of the capacitive touch panel.
  • the pen tip structure of the present application uses the connecting arm 22 to connect the multiple contacts 21 into a flexible overall structure.
  • the contacts 21 of the pen body 1 and the capacitive touch panel are exposed.
  • the integral structure formed by the contact 21 and the connecting arm 22 is elastic, the overall structure can be elastically deformed to reduce the contact friction during writing, and it can also ensure a sufficient contact area to obtain sufficient The amount of electrical signal, thereby improving the hand feel and fluency of writing.
  • the exposed part of the contact 21 at least partially exceeds the outer surface of the pen body 1 so that the part of the contact 21 that exposes the pen body 1 is in contact with the glass surface.
  • the exposed part of the contact 21 is at least partially coplanar with the outer surface of the pen body 1 to ensure that the contact 21 is in full contact with the glass surface during writing.
  • the contact 21 and the pen body 1 can be made of the same material, for example, both conductive rubber, conductive plastic or conductive silicone.
  • the elasticity of the connecting arm 22 is mainly used to reduce the contact between the contact 21 and the capacitive touch panel. Friction of the glass surface, while reducing wear to a certain extent.
  • the contact 21 and the pen body 1 can also be made of different materials.
  • the contact 21 is made of conductive hard plastic, such as conductive plastic.
  • the contact friction force during small writing improves the writing feel, and the conductive plastic has good abrasion resistance and self-lubricating properties, so that its service life can be maintained for a long time.
  • the overall structure formed by the contact 21 and the connecting arm 22 has elasticity, and can be elastically deformed without being stiff, so that the pen tip can be elastically deformed and restored relatively freely when pressed, so as to achieve a good writing effect.
  • the tip body 1 is made of conductive soft glue, such as conductive silica gel, so that the tip body 1 can also be deformed during writing, and the writing effect is further improved.
  • the above-mentioned conductive plastic includes conductive PC (polycarbonate), conductive nylon, conductive POM (polyformaldehyde) and other plastic materials formed by adding conductive powder, and conductive Teflon.
  • conductive Teflon is used as the conductive silica gel.
  • the conductive Teflon has better abrasion resistance and has a lower frictional resistance with the glass surface, which can improve the abrasion resistance and writing fluency of the contact.
  • the above-mentioned conductive silica gel is also formed by adding conductive powder to the silica gel material, and its resistance value is not greater than 20M ⁇ to ensure conductivity.
  • the position where the contact 21 of the conductive plastic contacts the glass surface is the round head structure 211, the diameter of the round head structure 211 is 1-1.5mm, and the adjacent contact 21
  • the distance between the two round head structures 211 is 0.8mm-1.2mm, which can be selected as 1mm to ensure the number of contacts 21 in the pen head structure and ensure good electrical conductivity and writing fluency.
  • the size of the round tip structure 211 protruding from the outer surface of the pen body 1 is less than or equal to 0.2mm, so that when writing, it is ensured that the pen body of the conductive silicone and the contacts of the conductive plastic can make contact with the glass surface to ensure sufficient contact. Area to ensure good conductivity and writing fluency.
  • the pen body 1 includes an end face 12 and a side wall 13, and a plurality of through holes 11 are provided on the end face 12 and the side wall 13 to ensure that there is There are enough contacts 21 to ensure good electrical conductivity and fluency in writing.
  • the outer surface of the end surface 12 is a spherical surface
  • the outer surface of the side wall portion 13 is a tapered surface.
  • the diameter of the tapered surface gradually decreases toward the end surface 12, and the spherical surface and the tapered surface transition smoothly. Connect to ensure full contact between the flexible pen tip structure and the glass surface during writing, ensuring good electrical conductivity.
  • the diameter d1 of the side wall portion 13 of the pen body 1 is 6-10mm, such as 6mm, 7mm, 9mm, 10mm, etc., and the end face 12 and the side
  • the diameter d2 of the part between the surrounding parts 13 is 4-6mm, such as 4mm, 4.5mm, 5mm, 5.7mm, 6mm, etc., so that when writing, the contact surface formed by the pen body 1 and the glass surface is formed by the deformation of the conductive silica gel during writing Approximately a circle with a diameter of 6-8mm to form a sufficient contact area to better ensure sufficient electrical signals; at the same time, the smooth writing of the passive capacitive pen is ensured under a suitable contact area.
  • the contact 21 is a columnar structure, the end surface 213 of which exposes the pen body 1, and the end surface 213 and the side surface 212 of the columnar structure are connected by a smooth curved surface transition to facilitate contact.
  • the head 21 passes through the through hole 11 to facilitate the movement of the contact head 21 relative to the pen head body 1 and improve the smoothness of writing.
  • the end surface 213 of the columnar structure is parallel to the outer surface of the pen body 1 where the contact 21 is located, so as to better ensure that the end surface 213 of the contact 21 is in full contact with the glass surface during writing. Ensure conductivity.
  • the end surface 213 of the columnar structure and at least part of the smooth curved surface expose the pen body 1 to ensure that when writing, the part of the contact 21 that exposes the pen body 1 is in contact with the glass surface.
  • the overall structure formed by 21 and the connecting arm 22 is elastic, and the contact 21 is made of conductive plastic, so that the contact friction during writing can be better reduced, and the writing feel can be improved.
  • the connecting arm 22 includes a first connecting arm 221, and a plurality of contacts 21 and a plurality of first connecting arms 221 form a plurality of elastic strips, each elastic strip Spiral extension, wherein in each elastic strip, adjacent contacts 21 are connected by a first connecting arm 221, that is, the elastic strip includes at least two contacts arranged at intervals along the extension direction of the elastic strip 21.
  • the adjacent contacts 21 on the same elastic strip are connected by the first connecting arm 221.
  • the spiral elastic strip makes the overall structure formed by the connecting arm 22 and the contact 21 more elastic, just like a compression spring, which can produce elastic deformation and recovery more freely, thereby achieving a better writing effect.
  • the elastic strips are arranged in a ring shape.
  • the center of the ring is located on the axis of the tapered surface, that is, the elastic strips are arranged around the tapered surface.
  • the center line where the axis of the tapered surface is located is arranged around, the connecting arm 22 also includes a plurality of second connecting arms 222 corresponding to the plurality of elastic strips respectively, and the contact 21 located at one end of the elastic strip close to the ring center is connected to the second Connect one end of the arm 222.
  • a contact 21 is provided at the center of the ring, and the other ends of the plurality of second connecting arms 222 corresponding to the plurality of elastic strips are all connected to the contact 21
  • Each elastic strip is connected to a second connecting arm 222.
  • the first One end of the second connecting arm 222 is connected to the elastic strip, and the other end is connected to the center contact, so that the plurality of contacts 21, the first connecting arm 221 and the second connecting arm 222 form a complete structure, making the insert 2 more elastic as a whole. Good, to further improve the writing effect.
  • the other ends of the plurality of second connecting arms 222 corresponding to the plurality of elastic strips can also be directly connected together, that is, one ends of the plurality of second connecting arms 222 are connected together.
  • the connecting position is approximately at the center of the ring, and the other end of the second connecting arm 222 is connected to the corresponding elastic strip, which can also improve the integrity of the insert 2 and ensure better elasticity.
  • the pen tip structure provided in this application is directly integrally formed. In order to ensure the integrity of the pen head structure, it is better to ensure that the pen head structure can be restored after being squeezed.
  • the pen tip structure is integrally molded through an injection molding process. Part of the structure can be injection molded first, and then the injection molded structure is placed in a secondary molding mold for secondary molding and forming a whole, so that the contact 21 is embedded in the pen body
  • the effect on 1 is that when writing, the contact 21 contacts the glass surface to generate pressure, which drives the connecting arm 22 and the pen body 1 to undergo elastic deformation to ensure that the pen structure has a sufficient contact area with the glass surface to ensure conductivity.
  • Due to elasticity when the pressure between the contact 21 and the glass surface is reduced, the structure of the pen tip will return to its original shape, thereby further ensuring the fluency of writing.
  • the present application also provides a passive capacitive pen (not shown in the figure), including the pen tip structure in any of the foregoing embodiments.
  • the passive capacitive pen can achieve the same technical effect as the above-mentioned pen structure by adopting the above-mentioned pen structure, and at the same time ensure the conductivity of the pen structure of the passive capacitive pen, the abrasion resistance of the pen structure and the smoothness of writing.
  • the diameter d1 of the side wall 13 of the pen body 1 is 6 ⁇ 10mm, such as 6mm, 7mm, 9mm, 10mm, etc., between the end face 12 and the side wall 13
  • the diameter d2 of the part is 4 ⁇ 6mm, such as 4mm, 4.5mm, 5mm, 5.7mm, 6mm, etc., so that when writing, the contact surface formed by the pen body 1 and the glass surface is approximately at a diameter of 6 through the deformation of the conductive silica gel. ⁇ 8mm round shape to form a sufficient contact area to better ensure that sufficient electrical signals are achieved; at the same time, to ensure the smooth writing of the passive capacitive pen under a suitable contact area.
  • the contact position between the contact 21 of the conductive plastic and the glass surface is the round head structure 211, the diameter of the round head structure 211 is 1-1.5mm, and the adjacent contacts
  • the distance between the two round head structures 211 of 21 is 0.8mm-1.2mm, which can be 1mm to ensure the number of contacts 21 in the pen head structure and ensure good conductivity and writing fluency.
  • the size of the round tip structure 211 protruding from the outer surface of the pen body 1 is less than or equal to 0.2 mm, so that when writing, it is ensured that the pen body 1 of conductive silicone and the contact 21 of conductive plastic can be in contact with the glass surface. Make contact, ensure sufficient contact area, and then ensure good conductivity and writing fluency.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Position Input By Displaying (AREA)

Abstract

一种笔头结构及被动式电容笔，该笔头结构包括笔头主体(1)和嵌件(2)。笔头主体(1)呈空心结构，笔头主体(1)上设置有多个通孔(11)。嵌件(2)包括多个触头(21)以及连接臂(22)，触头(21)对应通孔(11)设置，连接臂(22)设置于笔头主体(1)的内腔(14)中，多个触头(21)经连接臂(22)连接为具有弹性的整体结构，触头(21)的部分结构经通孔(11)裸露出笔头主体(1)。该笔头结构，当用户使用被动式电容笔进行书写时，裸露出笔头主体(1)的触头(21)与电容式触控面板的玻璃面接触，由于触头(21)与连接臂(22)构成的整体结构具有弹性，因此可以通过整体结构的弹性变形，减小书写时的接触摩擦力，可以保证足够的接触面积，以获得足够的电信号量，从而改善书写手感和书写流畅性。

Description

一种笔头结构及被动式电容笔
本申请要求于2020年03月04日在中国专利局提交的、申请号为202010143995.2、发明名称为“被动式电容笔及其笔头结构”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电容触控技术领域，具体涉及一种笔头结构及被动式电容笔。
 背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然构成现有技术。相关技术的被动式电容式电容笔的笔头材质一般用导电橡胶和导电塑胶，导电橡胶的导电性能够得到满足，但导电橡胶与玻璃摩擦阻力太大，书写不够顺畅；导电塑胶太硬不能产生形变，如果将笔头做成圆头，因接触面积不够，导致电信号量不够，造成触摸识别失败的问题；如果将笔头做成平面，书写时若无法保持笔头的全平面接触会导致断笔现象。
技术问题
本申请实施例的目的之一在于：提供一种笔头结构及被动式电容笔，旨在解决相关技术中的笔头结构无法同时保证导电性和书写顺畅性的问题。
 技术解决方案
为解决上述技术问题，本申请实施例采用的技术方案是：
第一方面，提供了一种笔头结构，包括：
笔头主体，呈空心结构，所述笔头主体上设置有多个通孔；以及
嵌件，包括多个触头以及连接于相邻的两个触头之间的连接臂，所述触头对应所述通孔设置，所述连接臂设置于所述笔头主体的内腔中，所述多个触头经所述连接臂连接为具有弹性的整体结构，各所述触头的部分结构经所述通孔裸露出所述笔头主体。
在一个实施例中，所述触头的裸露部分至少部分超出所述笔头主体的外表面。
在一个实施例中，所述触头的裸露部分至少部分与所述笔头主体的外表面共面。
在一个实施例中，所述笔头主体包括端面部和侧围部，所述端面部和所述侧围部上均设置有多个所述通孔。
在一个实施例中，所述端面部的外表面为球面，所述侧围部的外表面为锥面，所述锥面的直径向靠近所述端面部的方向逐渐减小，所述球面与所述锥面平滑过渡连接。
在一个实施例中，所述侧围部的直径为6-10mm，所述侧围部与所述端面部之间的连接部的直径为4-6mm，以使所述笔头主体与电容式触控面板的玻璃面的接触面的直径为6-8mm。
在一个实施例中，所述连接臂包括第一连接臂，多个所述触头和多个所述第一连接臂形成多条弹性条，每条所述弹性条螺旋延伸，各所述弹性条中，相邻所述触头之间通过所述第一连接臂连接。
在一个实施例中，各所述弹性条呈环形排布；所述连接臂还包括分别与多条弹性条对应的多个第二连接臂，位于所述弹性条的靠近所述环形的中心的一端的触头连接所述第二连接臂的一端。
在一个实施例中，多条所述弹性条对应的多个所述第二连接臂的另一端直接连接在一起。
在一个实施例中，在所述环形的中心位置设置有一个触头，多条所述弹性条对应的多个所述第二连接臂的另一端均与该触头连接。
在一个实施例中，所述触头为柱状结构，所述柱状结构的端面与侧面通过平滑曲面过渡连接。
在一个实施例中，所述柱状结构的端面与该触头所在位置处的笔头主体的外表面平行。
在一个实施例中，所述柱状结构的端面和至少部分所述平滑曲面露出所述笔头主体。
在一个实施例中，所述笔头主体的材质和所述触头的材质相异。
在一个实施例中，所述笔头主体由导电硅胶制成，所述触头由导电塑胶制成。
在一个实施例中，所述触头的用于与玻璃面接触的位置为圆头结构，所述圆头结构的直径为1-1.5mm，相邻的两个所述触头的两个所述圆头结构的间距为0.8-1.2mm。
在一个实施例中，所述圆头结构凸出所述笔头主体的外表面的尺寸小于或等于0.2mm。
第二方面，提供了一种被动式电容笔，包括上述所述的被动式电容笔的笔头结构。
 有益效果
本申请实施例提供的笔头结构的有益效果在于：通过采用连接臂将多个触头连接为具有弹性的整体结构，当用户使用被动式电容笔进行书写时，裸露出笔头主体的触头与电容式触控面板的玻璃面接触，由于触头与连接臂构成的整体结构具有弹性，因此可以通过整体结构的弹性变形，减小书写时的接触摩擦力，也可以保证足够的接触面积，以获得足够的电信号量，从而改善书写手感和书写流畅性。
本申请实施例提供的被动式电容笔的有益效果在于：通过采用上述的笔头结构，保证了该被动式电容笔的笔头结构的导电性、笔头结构耐磨性和书写顺畅性。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例或示范性技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1为本发明实施例提供的笔头结构的分解示意图；
图2为本发明实施例提供的笔头结构的截面图；
图3为本发明实施例提供的笔头结构的嵌件的一个视角的结构示意图；
图4为本发明实施例提供的笔头结构的嵌件的另一视角的结构示意图。
其中，图中各附图标记：
1、笔头主体；11、通孔；12、端面部；13、侧围部；14、内腔；2、嵌件；21、触头；211、圆头结构；212、侧面；213、端面；22、连接臂；221、第一连接臂；222、第二连接臂。
 本发明的实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本申请。
需说明的是，当部件被称为“固定于”或“设置于”另一个部件，它可以直接在另一个部件上或者间接在该另一个部件上。当一个部件被称为是“连接于”另一个部件，它可以是直接或者间接连接至该另一个部件上。术语“上”、“下”、“左”、“右”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制，对于本领域的普通技术人员而言，可以根据具体情况理解上述术语的具体含义。术语“第一”、“第二”仅用于便于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明技术特征的数量。“多个”的含义是两个或两个以上，除非另有明确具体的限定。
为了说明本申请所提供的技术方案，以下结合具体附图及实施例进行详细说明。
本申请的一些实施例提供一种笔头结构，参考图1和图2，该笔头结构由导电材质制作，包括笔头主体1和嵌件2。其中，笔头主体1呈空心结构，笔头主体1上设置有多个通孔11。嵌件2包括多个触头21以及连接于相邻的两个触头21之间的连接臂22，触头21对应通孔11设置，连接臂22设置于笔头主体1的内腔14中，多个触头21经连接臂22连接为具有弹性的整体结构，触头21的部分结构经通孔11裸露出笔头主体1。当触头21伸出笔头主体1，以更方便触头21与电容式触控面板的玻璃面接触。
本申请的笔头结构，通过采用连接臂22将多个触头21连接为具有弹性的整体结构，当用户使用被动式电容笔进行书写时，裸露出笔头主体1的触头21与电容式触控面板的玻璃面接触，由于触头21与连接臂22构成的整体结构具有弹性，因此可以通过整体结构的弹性变形，减小书写时的接触摩擦力，也可以保证足够的接触面积，以获得足够的电信号量，从而改善书写手感和书写流畅性。
在一个实施例中，所述触头21的裸露部分至少部分超出所述笔头主体1的外表面，使得触头21的露出笔头主体1的部分与玻璃面接触。当然，在其他实施例中，触头21的裸露部分至少部分与所述笔头主体1的外表面共面，保证了书写时触头21与玻璃面的充分接触。
需要说明的是，触头21和笔头主体1可以采用同一种材质，例如均为导电橡胶、导电塑胶或导电硅胶，此时主要通过连接臂22的弹性降低触头21与电容式触控面板的玻璃面摩擦，同时一定程度上降低磨损。
当然，触头21与笔头主体1也可采用不同材料制作，其中，触头21由导电硬胶制成，例如导电塑胶，导电塑胶质地较硬，书写时导电塑胶与玻璃面接触，可以进一步减小书写时的接触摩擦力，改善书写手感，并且导电塑胶的耐磨性及自润滑性良好，使其的使用寿命能保持较长时间。同时，由触头21与连接臂22构成的整体结构具有弹性，可以发生弹性形变而不僵硬，使笔头在按压时，比较自如的产生弹性形变及复原，从而达到良好的书写效果。
具体地，笔头主体1由导电软胶制成，例如导电硅胶，以使得在书写时笔头主体1也可发生形变，进一步提高书写效果。
其中，上述导电塑胶包括导电PC（聚碳酸酯，polycarbonate）、导电尼龙、导电POM（polyformaldehyde，聚甲醛）等通过加入导电粉末形成的塑胶材质，以及导电铁氟龙。
在本实施例中，导电硅胶采用导电铁氟龙，导电铁氟龙的耐磨性较好，并且与玻璃面的摩擦阻力较小，可以提高触头的耐磨性和书写流畅性。上述导电硅胶也通过在硅胶材料中添加导电粉末形成，其阻抗值不大于20MΩ,以确保导电性。
在本实施例中，具体参见图4，导电塑胶的触头21用于与玻璃面接触的位置为圆头结构211，圆头结构211的直径为1-1.5mm，并且，相邻触头21的两个圆头结构211的间距0.8mm-1.2mm，可选为1mm，以确保笔头结构中触头21的数量，保证良好的导电性和书写流畅性。
具体地，圆头结构211凸出笔头主体1外表面的尺寸小于或等于0.2mm，使得书写时，确保导电硅胶的笔头主体和导电塑胶的触头均可与玻璃面产生接触，保证足够的接触面积，进而保证良好的导电性和书写流畅性。
在本申请的一个实施例中，参见图1和图2，笔头主体1包括端面部12和侧围部13，端面部12和侧围部13上均设置有多个通孔11，以确保有足够的触头21，进而保证良好的导电性和书写的流畅性。
具体地，在本实施例中，端面部12的外表面为球面，侧围部13的外表面为锥面，锥面的直径向靠近端面部12的方向逐渐减小，球面与锥面平滑过渡连接，以保证书写时弹性的笔头结构与玻璃面的充分接触，确保良好的导电性。
为此，本申请的一种实施例中，参见图1至图4，笔头主体1的侧围部13的直径d1为6-10mm，如6mm、7mm、9mm、10mm等，端面部12与侧围部13之间部分的直径d2为4-6mm，如4mm、4.5mm、5mm、5.7mm、6mm等，以在书写时，通过导电硅胶的变形，使笔头主体1与玻璃面形成的接触面近似为直径位于6~8mm的圆形，以形成足够的接触面积，进而更好地保证达到足够的电信号；且同时在合适的接触面积下保证被动式电容笔书写的流畅性。
在本申请的一个实施例中，具体参见图1至图4，触头21为柱状结构，其端面213裸露出笔头主体1，柱状结构的端面213与侧面212通过平滑曲面过渡连接，以便于触头21穿过通孔11，从而方便触头21相对笔头主体1的运动，提高书写的顺畅性。
具体地，在本实施例中，柱状结构的端面213与该触头21所在位置处的笔头主体1的外表面平行，从而更好地保证书写时触头21端面213与玻璃面的充分接触，确保导电性。
当然，在其他实施例中，柱状结构的端面213和至少部分所述平滑曲面露出笔头主体1，以保证当书写时，使触头21的露出笔头主体1的部分与玻璃面接触，由于触头21与连接臂22构成的整体结构具有弹性，并且触头21采用导电塑胶，因此可以更好地减小书写时的接触摩擦力，改善书写手感。
在本申请的一个实施例中，具体参见图3及图4，连接臂22包括第一连接臂221，多个触头21和多个第一连接臂221形成多条弹性条，每条弹性条螺旋延伸，其中每个弹性条中，相邻的触头21之间通过第一连接臂221连接，即，弹性条包括至少两个沿所述弹性条的延伸方向间隔排布的所述触头21，位于同一所述弹性条上的相邻所述触头21之间通过所述第一连接臂221连接。螺旋形的弹性条使得连接臂22与触头21构成的整体结构的弹性更好，就如一个压簧形式，更加自如的产生弹性形变及复原，从而达到更好的书写效果。
在本申请的一个实施例中，具体参见图3及图4，各弹性条呈环形排布，在侧围部13为锥面时，环形的中心位于锥面的轴线上，即各弹性条绕锥面的轴线所在的中心线环绕设置，连接臂22还包括分别与多条弹性条对应的多个第二连接臂222，位于弹性条的靠近所述环形中心的一端的触头21连接第二连接臂222的一端。
具体地，在本实施例中，结合图3，在环形的中心位置设置有一个触头21，多条弹性条对应的多个所述第二连接臂222的另一端均与该触头21连接，也就是说，在环形中心有一个触头21，记为中心触头，各弹性条均连接有一个第二连接臂222，在每组对应连接的弹性条和第二连接臂222中，第二连接臂222的一端与弹性条连接，另一端与中心触头连接，从而使得多个触头21、第一连接臂221和第二连接臂222形成完整的结构，使得嵌件2整体弹性更好，进一步提高书写效果。
可替换的，结合图4，多条所述弹性条对应的多个所述第二连接臂222的另一端也可直接连接在一起，即，多条第二连接臂222的一端连接在一起，连接位置大致位于环形中心，第二连接臂222的另一端与相对应的弹性条连接，也可以提高嵌件2的整体性，保证其弹性更好。
本申请提供的笔头结构中，直接一体成型。为了保证笔头结构的整体性，更好地保证笔头结构挤压后可恢复。
具体地，笔头结构通过注塑工艺实现一体成型，可以先注塑成型部分结构，然后再注塑成型的结构放置到二次成型的模具中进行二次成型并形成一个整体，实现触头21镶嵌在笔头主体1上的效果，书写时，触头21与玻璃面接触，产生压力，带动连接臂22和笔头主体1发生弹性形变，以保证笔头结构与玻璃面有足够的接触面积，确保导电性，同时，由于弹性的原因，当触头21与玻璃面之间的压力减小时，笔头结构会恢复原先的形状，从而进一步保证了书写的流畅性。
本申请还提供了一种被动式电容笔（图中未示出），包括上述任意实施例中的笔头结构。
该被动式电容笔，通过采用上述的笔头结构，可以达到如上述笔头结构相同的技术效果，同时保证了该被动式电容笔的笔头结构的导电性、笔头结构耐磨性和书写顺畅性。
在本申请的一个实施例中，考虑到笔头结构与电容式触控面板的玻璃面接触面积如果太小，会降低二者之间传递的电信号；如果接触面积太大，又会增加笔头结构与玻璃面之间的摩擦力，增加书写的阻力，笔头主体1的侧围部13的直径d1为6~10mm，如6mm、7mm、9mm、10mm等，端面部12与侧围部13之间部分的直径d2为4~6mm，如4mm、4.5mm、5mm、5.7mm、6mm等，以在书写时，通过导电硅胶的变形，使笔头主体1与玻璃面形成的接触面近似为直径位于6~8mm的圆形，以形成足够的接触面积，进而更好地保证达到足够的电信号；且同时在合适的接触面积下保证被动式电容笔书写的流畅性。
在本申请的一个实施例中，具体参见图4，导电塑胶的触头21与玻璃面的接触位置为圆头结构211，圆头结构211的直径为1-1.5mm，并且，相邻触头21的两个圆头结构211的间距0.8mm-1.2mm，可以为1mm，以确保笔头结构中触头21的数量，保证良好的导电性和书写流畅性。
其中，在本实施例中，圆头结构211凸出笔头主体1外表面的尺寸小于或等于0.2mm，使得书写时，确保导电硅胶的笔头主体1和导电塑胶的触头21均可与玻璃面产生接触，保证足够的接触面积，进而保证良好的导电性和书写流畅性。
以上仅为本申请的可选实施例而已，并不用于限制本申请。对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。

Claims (18)

  1. 一种笔头结构，包括：
    笔头主体（1），呈空心结构，所述笔头主体（1）上设置有多个通孔（11）；以及
    嵌件（2），包括多个触头（21）以及连接于相邻的两个触头（21）之间的连接臂（22），所述触头（21）对应所述通孔（11）设置，所述连接臂（22）设置于所述笔头主体（1）的内腔（14）中，所述多个触头（21）经所述连接臂（22）连接为具有弹性的整体结构，各所述触头（21）的部分结构经所述通孔（11）裸露出所述笔头主体（1）。
  2. 根据权利要求1所述的笔头结构，其中，所述触头（21）的裸露部分至少部分超出所述笔头主体（1）的外表面。
  3. 根据权利要求1所述的笔头结构，其中，所述触头（21）的裸露部分至少部分与所述笔头主体（1）的外表面共面。
  4. 根据权利要求1至3任一项所述的笔头结构，其中，所述笔头主体（1）包括端面部（12）和侧围部（13），所述端面部（12）和所述侧围部（13）上均设置有多个所述通孔（11）。
  5. 根据权利要求4所述的笔头结构，其中，所述端面部（12）的外表面为球面，所述侧围部（13）的外表面为锥面，所述锥面的直径向靠近所述端面部（12）的方向逐渐减小，所述球面与所述锥面平滑过渡连接。
  6. 根据权利要求4所述的笔头结构，其中，所述侧围部（13）的直径为6-10mm，所述侧围部（13）与所述端面部（12）之间的部分的直径为4-6mm，以使所述笔头主体（1）与电容式触控面板的玻璃面的接触面的直径为6-8mm。
  7. 根据权利要求5所述的笔头结构，其中，所述连接臂（22）包括第一连接臂（221），多个所述触头（21）和多个所述第一连接臂（221）形成多条弹性条，每条所述弹性条螺旋延伸，各所述弹性条中，相邻所述触头（21）之间通过所述第一连接臂（221）连接。
  8. 根据权利要求7所述的笔头结构，其中，各所述弹性条呈环形排布；所述连接臂（22）还包括分别与多条弹性条对应的多个第二连接臂（222），位于所述弹性条的靠近所述环形的中心的一端的触头（21）连接所述第二连接臂（222）的一端。
  9. 根据权利要求8所述的笔头结构，其中，多条所述弹性条对应的多个所述第二连接臂（222）的另一端直接连接在一起。
  10. 根据权利要求8所述的笔头结构，其中，在所述环形的中心位置设置有一个触头（21），多条所述弹性条对应的多个所述第二连接臂（222）的另一端均与该触头（21）连接。
  11. 根据权利要求1至3任一项所述的笔头结构，其中，所述触头（21）为柱状结构，所述柱状结构的端面（213）与侧面（212）通过平滑曲面过渡连接。
  12. 根据权利要求11所述的笔头结构，其中，所述柱状结构的端面（213）与该触头（21）所在位置处的笔头主体（1）的外表面平行。
  13. 根据权利要求11所述的笔头结构，其中，所述柱状结构的端面（213）和至少部分所述平滑曲面露出所述笔头主体（1）。
  14. 根据权利要求1至3任一项所述的笔头结构，其中，所述笔头主体（1）的材质和所述触头（21）的材质相异。
  15. 根据权利要求14所述的笔头结构，其中，所述笔头主体（1）由导电硅胶制成，所述触头（21）由导电塑胶制成。
  16. 根据权利要求15所述的笔头结构，其中，所述触头（21）的用于与玻璃面接触的位置为圆头结构（211），所述圆头结构（211）的直径为1-1.5mm，相邻的两个所述触头（21）的两个所述圆头结构（211）的间距为0.8-1.2mm。
  17. 根据权利要求16所述的笔头结构，其中，所述圆头结构（211）凸出所述笔头主体（1）的外表面的尺寸小于或等于0.2mm。
  18. 一种被动式电容笔，其中，包括如权利要求1-17任一项所述的笔头结构。
PCT/CN2020/114026 2020-03-04 2020-09-08 一种笔头结构及被动式电容笔 WO2021174799A1 (zh)

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