WO2018072524A1 - 一种具有凸形开关硬质片的软胶键盘 - Google Patents

一种具有凸形开关硬质片的软胶键盘 Download PDF

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Publication number
WO2018072524A1
WO2018072524A1 PCT/CN2017/095357 CN2017095357W WO2018072524A1 WO 2018072524 A1 WO2018072524 A1 WO 2018072524A1 CN 2017095357 W CN2017095357 W CN 2017095357W WO 2018072524 A1 WO2018072524 A1 WO 2018072524A1
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Prior art keywords
hard
soft
keyboard
soft plastic
switch
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PCT/CN2017/095357
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English (en)
French (fr)
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江海波
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江海波
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Application filed by 江海波 filed Critical 江海波
Publication of WO2018072524A1 publication Critical patent/WO2018072524A1/zh
Priority to US16/257,924 priority Critical patent/US20190228929A1/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/704Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by the layers, e.g. by their material or structure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/88Processes specially adapted for manufacture of rectilinearly movable switches having a plurality of operating members associated with different sets of contacts, e.g. keyboards
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00Layers
    • H01H2209/024Properties of the substrate
    • H01H2209/026Properties of the substrate metallic
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00Layers
    • H01H2209/068Properties of the membrane
    • H01H2209/074Properties of the membrane elastomeric
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00Actuators
    • H01H2221/002Actuators integral with membrane
    • H01H2221/006Adhesive
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00Actuators
    • H01H2221/05Force concentrator; Actuating dimple
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00Dimensions; Characteristics
    • H01H2227/016Switch site protrusions; Force concentrators
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00Manufacturing
    • H01H2229/044Injection moulding
    • H01H2229/048Insertion moulding

Definitions

  • the invention relates to the technical field of computer keyboards, in particular to a soft plastic keyboard with a convex switch hard piece.
  • the software button surface is The upper body is formed downwardly to form a convex switch body, which is corresponding to a circuit switch point on the printed circuit film by opening a hole in the hard piece; the structure of the injection molding software button needs to have a downward convex shape.
  • the purpose of the novel is to provide a soft plastic keyboard with a convex switch hard piece which is simple in processing, low in cost, simple in assembly and good in pressing stability, which is provided for the deficiencies of the prior art.
  • a soft plastic keyboard with a convex switch hard sheet comprising: a printed circuit film and a keyboard bottom plate supported under the printed circuit film, and an integrated soft rubber
  • the key cap and a plurality of hard sheets, the integrated soft rubber key cap comprises a plurality of button units, the button unit is formed by a soft rubber button surface, a soft plastic support body and a soft rubber button base, and each button unit corresponds to a hard unit.
  • the male switch body is a hemispherical or cylindrical body formed by integral injection molding, and the spherical surface thereof corresponds to the switching point of the printed circuit film.
  • the upper and lower ends of the soft plastic support body are respectively connected with the soft rubber button surface and the button base to form an integral "work" shape soft rubber as a whole.
  • the soft rubber button base is bonded to the corresponding printed circuit film.
  • the hard sheet is a hard plastic sheet, or a metal sheet or a glass sheet.
  • the hard sheet is a hard mesh sheet.
  • the hard sheet is a non-porous solid hard sheet.
  • the integrated soft rubber key cap is made of a soft rubber material such as silicone rubber or TPR rubber or PVC rubber.
  • the integral soft rubber key cap is made of a transparent rubber material.
  • the bottom surface of the soft rubber button surface is formed with a groove having a size and shape matched with the hard sheet.
  • the hard sheet is bonded or integrally molded into the groove.
  • the soft rubber button surface does not need to form a downward switch body, which optimizes the mold structure, reduces the injection molding process requirements, and makes the production more convenient;
  • the center of the hard piece is integrally formed with a convex switch body.
  • the hard piece can make the soft rubber button surface pressed and balanced.
  • FIG. 1 is a schematic cross-sectional structural view of a keyboard of the embodiment of the present invention.
  • FIG. 2 is a schematic exploded perspective view of a button unit of the embodiment of the present invention.
  • FIG 3 is a partial cross-sectional structural view of a button unit of the second embodiment of the present invention.
  • a soft keyboard with a convex switch hard sheet includes: a printed circuit film 40 and a keyboard bottom plate 50 supported under the printed circuit film 40, and an integrated soft rubber key.
  • the cap 10 and the plurality of rigid sheets 20, the integral soft rubber cap 10 includes a plurality of button units, and the button unit is formed by a soft rubber button surface 11, a soft plastic support body 12, and a soft rubber button base 13
  • the button unit corresponds to a rigid sheet 20
  • a male switch body 21 is integrally formed at the center of the hard sheet 20, and the rigid sheet 20 is bonded or integrally molded on the soft rubber button surface 11 by adhesive bonding.
  • the male switch body 21 at the center of the hard sheet 20 corresponds to the circuit switching point of the printed circuit film 40.
  • the male switch body 21 is a hemispherical or cylindrical body formed by integral injection molding, the spherical surface of which corresponds to the switching point of the printed circuit film 40.
  • the upper and lower ends of the soft plastic support body 12 are respectively connected with the soft rubber button surface 11 and the button base 13 as an integral “work” soft rubber, so that the gap of the soft rubber button surface 11 of the adjacent button unit can be designed according to the design. Need to shrink, so that the entire button surface of the product is very flat.
  • the soft button base 13 is bonded to the corresponding printed circuit film 40.
  • the hard sheet 20 is made of a hard plastic sheet, a metal sheet, or a glass sheet.
  • the structure of the rigid sheet 20 is a hard mesh sheet or a non-porous solid hard sheet.
  • the integrated soft rubber key cap 10 is made of a soft rubber material such as silicone rubber or TPR rubber or PVC rubber.
  • the integrated soft keycap 10 is made of a transparent rubber material.
  • the bottom surface of the soft rubber button face 11 is formed with a groove 14 having a size and shape matched with the hard sheet 20.
  • the hard sheet 20 is bonded or integrally molded into the groove 14.
  • the soft rubber button face 11 follows the soft rubber support body 13
  • the rigid sheet 20 which is bent downward and vertically moved downward and integrally connected with the bottom surface of the soft rubber button surface 11 is also vertically moved downward, and the convex switch body 21 at the center of the hard sheet 20 is simultaneously moved vertically downward until clicked.
  • the soft plastic support body 13 is restored, and the convex switch body 21 at the center of the hard sheet 20 is separated from the circuit switch point corresponding to the printed circuit film 20 to open the circuit, and the integrated circuit is soft.
  • the rubber key cap 10 is restored to the initial state.
  • the novel has the characteristics of simple processing, low cost, simple assembly, and good press stability.

Landscapes

  • Push-Button Switches (AREA)

Abstract

一种具有凸形开关硬质片(20)的软胶键盘,包括有:印刷电路薄膜(40)以及支撑在印刷电路薄膜(40)下的键盘底板(50),还包括有一体式软胶键帽(10)和若干个硬质片(20),一体式软胶键帽(10)包括若干个按键单元,该按键单元由软胶按键面(11)、软胶支撑体(12)、软胶按键底座(13)相连而成,每个按键单元对应一个硬质片(20),在硬质片(20)的中心向下一体成型有凸形开关体(21),所述硬质片(20)通过粘接剂粘接或一体注塑成型在软胶按键面(11)的底面上,硬质片(20)的中心的凸形开关体(21)对应印刷电路薄膜(40)的电路开关点。采用上述结构后,软胶键盘具有加工简单、低成本、组装简单、按压稳定性能好的特点。

Description

一种具有凸形开关硬质片的软胶键盘 技术领域
本新型涉及计算机键盘技术领域,尤其是涉及一种具有凸形开关硬质片的软胶键盘。
背景技术
在现有的无剪刀脚的软胶键盘中,在软件按键面底部设置硬质片来提高按键面的强度和平整度,在先设计机构中,为了减少独立的软胶开关,在软件按键面上一体向下成型凸形开关体,通过在硬质片上开孔来穿过通孔后与印刷电路薄膜上的电路开关点对应;这种结构注塑软件按键时需要专门有一个向下的凸形开关体的注塑结构,且需要在硬质片上开孔,且装配时,有穿孔粘接或一体成型的工艺,其装配和生产结构较麻烦,如何更进一步优化现有结构来达到相同的功能来节约成本和人工成为有待解决的问题。
发明内容
本新型的目的就是针对现有技术的不足之处而提供的一种加工简单、低成本、组装简单、按压稳定性能好的具有凸形开关硬质片的软胶键盘。
为达到上述目的,本新型的技术方案是:一种具有凸形开关硬质片的软胶键盘,包括有:印刷电路薄膜以及支撑在印刷电路薄膜下的键盘底板,还包括有一体式软胶键帽和若干个硬质片,一体式软胶键帽包括若干个按键单元,该按键单元由软胶按键面、软胶支撑体、软胶按键底座相连而成,每个按键单元对应一个硬质片,在硬质片的中心向下一体成型有凸形开关体,所述硬质片通 过粘接剂粘接或一体注塑成型在软胶按键面的底面上,硬质片的中心的凸形开关体对应印刷电路薄膜的电路开关点。
所述凸形开关体是通过一体式注塑成型的半球体或柱形体,其球面正对应印刷电路薄膜的开关点。
所述软胶支撑体上下端分别与软胶按键面和按键底座相连接为一体式“工”形软胶整体。
所述软胶按键底座粘接在对应的印刷电路薄膜上。
所述的硬质片为硬质塑胶片、或金属片、或玻璃片。
所述的硬质片为硬质网格片。
所述的硬质片为无孔实体硬质片。
所述的一体式软胶键帽采用硅胶橡胶、或TPR橡胶、或PVC橡胶等软性的橡胶材料。
所述一体式软胶键帽由透明橡胶材料制成。
所述软胶按键面的底面成型有大小和形状与硬质片相匹配的凹槽,装配时,硬质片粘接或一体注塑成型在该凹槽内。
采用上述结构和方法后,本新型具有以下优点:
1、软胶按键面无需成型向下的开关体,优化了模具结构、减低了注塑工艺要求,使生产更为方便;
2、硬质片的中心一体向下成型有凸形开关体,装配时,直接将硬质片粘接或一体注塑成型在软胶按键面上,装配简单,无需过去的穿孔装配结构;
3、硬质片能使软胶按键面受力按压均衡平稳。
4、由于不需要剪刀脚和独立弹性硅胶开关部件,使得部件少成本低,装配简单方便。
附图说明
图1是本新型实施例一键盘的剖面结构示意图;
图2是本新型实施例一按键单元的立体结构分解示意图;
图3是本新型实施例二按键单元的局部剖面结构示意图。
具体实施方式
如图1-3所示,一种具有凸形开关硬质片的软胶键盘,包括有:印刷电路薄膜40以及支撑在印刷电路薄膜40下的键盘底板50,还包括有一体式软胶键帽10和若干个硬质片20,一体式软胶键帽10包括若干个按键单元,该按键单元由软胶按键面11、软胶支撑体12、软胶按键底座13相连而成,每个按键单元对应一个硬质片20,在硬质片20的中心向下一体成型有凸形开关体21,所述硬质片20通过粘接剂粘接或一体注塑成型在软胶按键面11的底面上,硬质片20的中心的凸形开关体21对应印刷电路薄膜40的电路开关点。
所述凸形开关体21是通过一体式注塑成型的半球体或柱形体,其球面正对应印刷电路薄膜40的开关点。
所述软胶支撑体12上下端分别与软胶按键面11和按键底座13相连接为一体式“工”形软胶整体,这样,相邻按键单元的软胶按键面11的间隙可以根据设计需要缩小,使产品的整个按键面非常平整。
所述软胶按键底座13粘接在对应的印刷电路薄膜40上。
所述的硬质片20的材质为硬质塑胶片、或金属片、或玻璃片。
所述的硬质片20的结构为硬质网格片,或者无孔实体硬质片。
所述的一体式软胶键帽10采用硅胶橡胶、或TPR橡胶、或PVC橡胶等软性的橡胶材料。
所述一体式软胶键帽10由透明橡胶材料制成。
所述软胶按键面11的底面成型有大小和形状与硬质片20相匹配的凹槽14,装配时,硬质片20粘接或一体注塑成型在该凹槽14内。
使用时,当手指按压软胶按键面11时,软胶按键面11随着软胶支撑体13 向下弯曲而向下垂直移动,与软胶按键面11底面相连为一体的硬质片20也同步向下垂直移动,硬质片20的中心的凸形开关体21同时垂直向下移动直至点击接触与印刷电路薄膜20相对应的电路开关点上使电路闭合通电;
当手指离开软胶按键面11时,软胶支撑体13恢复形变,硬质片20的中心的凸形开关体21与印刷电路薄膜20相对应的电路开关点分离而断开电路,一体式软胶键帽10恢复初始状态。
这样,本新型具有加工简单、低成本、组装简单、按压稳定性能好的特点。

Claims (10)

  1. 一种具有凸形开关硬质片的软胶键盘,包括有:印刷电路薄膜以及支撑在印刷电路薄膜下的键盘底板,其特征在于:还包括有一体式软胶键帽和若干个硬质片,一体式软胶键帽包括若干个按键单元,该按键单元由软胶按键面、软胶支撑体、软胶按键底座相连而成,每个按键单元对应一个硬质片,在硬质片的中心向下一体成型有凸形开关体,所述硬质片通过粘接剂粘接或一体注塑成型在软胶按键面的底面上,硬质片的中心的凸形开关体对应印刷电路薄膜的电路开关点。
  2. 根据权利要求1所述的一种具有凸形开关硬质片的软胶键盘,其特征在于:所述凸形开关体是通过一体式注塑成型的半球体或柱形体,其球面正对应印刷电路薄膜的开关点。
  3. 根据权利要求1所述的一种具有凸形开关硬质片的软胶键盘,其特征在于:所述软胶支撑体上下端分别与软胶按键面和按键底座相连接为一体式“工”形软胶整体。
  4. 根据权利要求1所述的一种具有凸形开关硬质片的软胶键盘,其特征在于:所述软胶按键底座粘接在对应的印刷电路薄膜上。
  5. 根据权利要求1所述的一种具有凸形开关硬质片的软胶键盘,其特征在于:所述的硬质片为硬质塑胶片、或金属片、或玻璃片。
  6. 根据权利要求1所述的一种具有凸形开关硬质片的软胶键盘,其特征在于:所述的硬质片为硬质网格片。
  7. 根据权利要求1所述的一种具有凸形开关硬质片的软胶键盘,其特征在于:所述的硬质片为无孔实体硬质片。
  8. 根据权利要求1所述的一种具有凸形开关硬质片的软胶键盘,其特征在于:所述的一体式软胶键帽采用硅胶橡胶、或TPR橡胶、或PVC橡胶等软 性的橡胶材料。
  9. 根据权利要求1所述的一种具有凸形开关硬质片的软胶键盘,其特征在于:所述一体式软胶键帽由透明橡胶材料制成。
  10. 根据权利要求1-9任一项所述的一种具有凸形开关硬质片的软胶键盘,其特征在于:所述软胶按键面的底面成型有大小和形状与硬质片相匹配的凹槽,装配时,硬质片粘接或一体注塑成型在该凹槽内。
PCT/CN2017/095357 2016-10-19 2017-08-01 一种具有凸形开关硬质片的软胶键盘 WO2018072524A1 (zh)

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CN201621140578.8U CN206076125U (zh) 2016-10-19 2016-10-19 一种具有凸形开关硬质片的软胶键盘

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CN206076125U (zh) * 2016-10-19 2017-04-05 江海波 一种具有凸形开关硬质片的软胶键盘
CN107230572A (zh) * 2017-06-16 2017-10-03 深圳市恒怡多精彩科技有限公司 薄型防水电脑键盘按键
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