WO2020010481A1 - 一种能降低按键时噪声的按键结构及按键模组 - Google Patents

一种能降低按键时噪声的按键结构及按键模组 Download PDF

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Publication number
WO2020010481A1
WO2020010481A1 PCT/CN2018/094937 CN2018094937W WO2020010481A1 WO 2020010481 A1 WO2020010481 A1 WO 2020010481A1 CN 2018094937 W CN2018094937 W CN 2018094937W WO 2020010481 A1 WO2020010481 A1 WO 2020010481A1
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Prior art keywords
dome
key
conductive electrode
conductive
circuit board
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PCT/CN2018/094937
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English (en)
French (fr)
Inventor
李明
曹传春
丁进新
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东莞市聚明电子科技有限公司
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Priority to PCT/CN2018/094937 priority Critical patent/WO2020010481A1/zh
Publication of WO2020010481A1 publication Critical patent/WO2020010481A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches 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
    • H01H13/702—Switches 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
    • H01H13/704—Switches 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

Definitions

  • the invention discloses a button structure, in particular a button structure and a button module capable of reducing noise when a button is pressed.
  • Dome full name is metal dome or dome array or dome sheet. It has long been used for short, so it is called dome, or dome sheet. It is a PET sheet containing metal springs (pots), used as a switch on PCB or FPC and other circuit boards, and plays an important tactile switch between the user and the instrument. Compared with traditional silicone keys, membrane keys have better feel, longer life, and can also indirectly improve the production efficiency of various types of switches using conductive films.
  • the metal spring on the membrane button (that is, Dome) is located on the conductive part of the pad on the PCB (mostly above the gold finger on the circuit board). When pressed, the center point of the spring is depressed and contacts the circuit on the PCB. Thus, a loop is formed, and the entire product can work normally through the current. Dome is an important part of the switch. With the continuity of the metal shrapnel, it acts as a high-quality switch between the operator and the product. At the same time, it uses the stable resilience (automatically returns to position after pressing) and long life to provide the operator with high-quality tactile feedback.
  • Dome's membrane buttons are widely used in various electronic products, such as: mobile phone side buttons, notebook computer touch pads, headset remote control, etc. Due to the structural limitations of Dome's thin-film keys, they will have a noticeable stuttering during pressing and rebounding, that is, tactile feedback, or keystroke feel. However, when Dome's membrane keys are pressed, they will produce a clear sound, that is, when they are pressed, there will be a "click, click, click” sound. When used in high-end electronic products, it will lower the level of the product. How to reduce the keypad sound of membrane keys is an urgent problem in the industry.
  • the present invention provides a key structure and a key module that can reduce the noise when the keys are pressed.
  • a pad made of a soft buffering conductive material is arranged between the board and the Dome. The pad can buffer the force generated when the Dome is pressed against the circuit board, thereby reducing the key sound of the membrane keys.
  • the technical solution adopted by the present invention to solve its technical problems is: a key structure capable of reducing noise when a key is pressed.
  • the key structure includes a circuit board, a Dome fixing film, a Dome, and a gasket.
  • the circuit board is provided with conductive lines, and the buttons of the conductive lines
  • the part includes a first conductive electrode and a second conductive electrode.
  • a first insulating portion is provided between the first conductive electrode and the second conductive electrode.
  • the Dome is provided corresponding to the key part on the conductive line.
  • the Dome fixing film is provided above the Dome.
  • Dome A gasket made of a soft buffering conductive material is arranged between the circuit board and the circuit board.
  • a key module includes a key structure capable of reducing noise when a key is pressed as described above.
  • the Dome is fixed on the Dome fixing film.
  • An adhesive layer is fixed on the Dome fixing film, and Dome is adhered to the Dome fixing film through the adhesive layer.
  • the Dome fixing film is provided with a first air guide groove, and the first air guide groove is provided at a position corresponding to the edge of the Dome.
  • a convex point is fixedly arranged at the center of the top or bottom of the Dome.
  • the pad made of the soft buffer conductive material is made of materials including but not limited to conductive foam or conductive silica gel.
  • the gasket is adsorbed on the inside of the Dome.
  • a third conductive electrode is disposed in the middle of the gasket, a fourth conductive electrode is disposed outside the third conductive electrode, a second insulating portion is provided between the third conductive electrode and the fourth conductive electrode, and the third conductive electrode corresponds to the line.
  • the first conductive electrode is arranged on the board, the third conductive electrode corresponds to the shape of the first conductive electrode, the fourth conductive electrode corresponds to the setting of the second conductive electrode on the circuit board, and the fourth conductive electrode corresponds to the shape of the second conductive electrode .
  • the gasket is provided with a second air guide groove, and the second air guide groove is arranged corresponding to the first air guide groove on the Dome fixed film.
  • the beneficial effect of the present invention is that a gasket made of a soft buffering conductive material is provided between the circuit board and the Dome in the present invention, and the force generated by the collision with the circuit board when the Dome is pressed can be buffered by the gasket, thereby reducing the film key.
  • the key tones improve the quality of the final product as a whole.
  • FIG. 1 is a schematic diagram of a three-dimensional structure according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a three-dimensional structure according to another embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a three-dimensional structure of Embodiment 2 of the present invention.
  • FIG. 4 is a schematic diagram of a three-dimensional structure according to another embodiment of the present invention.
  • This embodiment is a preferred embodiment of the present invention, and other principles and basic structures that are the same or similar to this embodiment are all within the protection scope of the present invention.
  • the structure of the present invention mainly includes a circuit board 1, a Dome fixing film 2, a Dome 3, and a gasket 4.
  • the circuit board 1 is provided with a conductive line, and a key portion of the conductive line includes a first conductive electrode.
  • Dome3 Corresponding to the arrangement of the keys on the conductive circuit, the Dome fixed film 2 is disposed on the Dome 3, the Dome 3 is fixedly disposed on the Dome fixed film 2, and a pad 4 made of a soft buffer conductive material is disposed between the Dome 3 and the circuit board 1.
  • a sticker layer is fixed on the Dome fixing film 2, and Dome 3 is adhered to the Dome fixing film 2 through the sticker layer.
  • a first air guide groove 8 is provided on the fixed membrane 2 of the Dome. The first air guide groove 8 is provided at a position corresponding to the edge of the Dome 3, and the air generated when the Dome 3 is pressed can be led out by the first air guide groove 8. To make it more smooth.
  • a bump (or a plunger) is fixedly disposed at the center of the top or bottom of the Dome3, which can enhance the hand feeling when pressed.
  • the pad 4 made of a soft buffering conductive material is made of materials including but not limited to conductive foam or conductive silicone.
  • the pad 4 made of the soft buffering conductive material can press the circuit board when the Dome 3 is pressed.
  • the shock of 1 acts as a buffer, reducing the sound produced when pressing.
  • Embodiment 1 Please refer to FIG. 1 and FIG. 2.
  • the circuit board 1 is a PCB.
  • the circuit board 1 is fixedly provided with a first conductive electrode 5 and a second conductive electrode 6.
  • the first conductive electrode 5 is Disk-shaped
  • the second conductive electrode 6 has a circular ring shape
  • the second conductive electrode 6 is sleeved outside the first conductive electrode 5
  • the first insulating electrode 7 is between the first conductive electrode 5 and the second conductive electrode 6.
  • An insulating portion 7 has a ring shape
  • the first conductive electrode 5 and the second conductive electrode 6 are electrically connected to the conductive lines on the circuit board 1, respectively.
  • the first conductive electrode 5 and the second conductive electrode 5 can be conducted through the gasket 4
  • the conductive electrode 6 is used to achieve key conduction.
  • the shape of the gasket 4 made of the soft buffer conductive material is not fixed, as long as the effective conduction area covers the area of the Dome.
  • the gasket 4 is thinner and softer, and can be adsorbed on the inside of the Dome 3, following the shape of the Dome 3
  • the shape of the gasket 4 is larger than the Dome 3, and the four corner positions of the gasket 4 are respectively affixed to the Dome fixing film 2 to fix the gasket 4.
  • the gasket 4 needs to meet
  • the first conductive electrode 5 and the second conductive electrode 6 are conducted and can be pasted on the Dome fixing film 2 or Dome3.
  • a Dome fixing film 2 is provided above the Dome 3, and the Dome 3 and the gasket 4 are fixed together by the Dome fixing film 2.
  • Embodiment 2 Please refer to FIG. 3 and FIG. 4.
  • the circuit board 1 is a PCB.
  • the circuit board 1 is fixedly provided with a first conductive electrode 5 and a second conductive electrode 6.
  • the first conductive electrode 5 is Disk-shaped
  • the second conductive electrode 6 has a circular ring shape
  • the second conductive electrode 6 is sleeved outside the first conductive electrode 5
  • the first insulating electrode 7 is between the first conductive electrode 5 and the second conductive electrode 6.
  • An insulating portion 7 has a ring shape
  • the first conductive electrode 5 and the second conductive electrode 6 are electrically connected to the conductive lines on the circuit board 1, respectively.
  • the shape of the gasket 4 made of soft buffer conductive material is not fixed, as long as it meets effective conduction.
  • the area is sufficient to cover the area of the Dome.
  • the gasket 4 is thicker and harder and cannot be changed with the shape of the Dome 3.
  • a third conductive electrode 9 and a third conductive electrode are disposed in the middle of the gasket 4. 9 is provided with a fourth conductive electrode 10 on the outside, and a second insulating portion 11 is provided between the third conductive electrode 9 and the fourth conductive electrode 10 to insulate the third conductive electrode 9 and the fourth conductive electrode 10 from each other.
  • the third conductive electrode 9 corresponds to the first conductive electrode on the circuit board 1 5
  • the third conductive electrode 9 corresponds to the shape of the first conductive electrode 5
  • the fourth conductive electrode 10 is provided corresponding to the second conductive electrode 6 on the circuit board 1
  • the fourth conductive electrode corresponds to the shape of the second conductive electrode 6.
  • the shape of the gasket 4 is larger than the Dome 3, and the four corner positions of the gasket 4 are respectively pasted on the Dome fixing film 2 to fix the gasket 4.
  • the gasket 4 needs to be able to conduct the third conductive electrode 9 and the fourth conductive electrode 10 when the Dome 3 is pressed down, and the first conductive electrode 5 and the second conductive electrode can be conducted through the third conductive electrode 9 and the fourth conductive electrode 10.
  • the electrode 6 can be pasted on the Dome fixing film 2 or Dome 3, and the Dome fixing film 2 is arranged above the Dome 3, and the Dome 3 and the gasket 4 are fixed on the circuit board 1 together through the Dome fixing film 2.
  • the gasket 4 is provided with a second air guiding groove 12, and the second air guiding groove 12 is provided corresponding to the first air guiding groove 8 on the Dome fixing film 2.
  • the circuit board 1 is a PCB board.
  • the circuit board 1 may also be an FPC or a rigid-soft board.
  • the first conductive electrode 5 is in the shape of a disk
  • the second conductive electrode 6 is in the shape of a circle.
  • the first conductive electrode 5 and the second conductive electrode 6 may also be in the shape of a "mountain", a semicircle.
  • the shape of the third conductive electrode 9 and the fourth conductive electrode 10 corresponds to the first conductive electrode 5 and the second conductive electrode 6 respectively.
  • the first conductive electrode 5 and the second conductive electrode 6 are directly connected through the pad 4 when the Dome 3 is pressed, or the third conductive electrode 9 and the fourth conductive electrode 10 on the pad 4 are connected through the Dome 3.
  • the first conductive electrode 5 and the second conductive electrode 6 are indirectly conducted through the third conductive electrode 9 and the fourth conductive electrode 10, thereby achieving key conduction.
  • a pad made of a soft buffering conductive material is provided between the circuit board and the Dome.
  • the pad can buffer the force generated by the collision with the circuit board when the Dome is pressed, thereby reducing the keypad sound of the membrane button and improving the final result as a whole. Product quality.

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Abstract

本发明公开一种能降低按键时噪声的按键结构及按键模组，按键结构包括线路板、Dome固定膜、Dome和垫片，线路板上设置有导电线路，导电线路的按键部分包括第一导电电极和第二导电电极，第一导电电极和第二导电电极之间设置有第一绝缘部，Dome对应于导电线路上的按键部分设置，Dome固定膜设置在Dome上方， Dome和线路板之间设置有软质缓冲导电材料制成的垫片。本发明在线路板和Dome之间设置有软质缓冲导电材料制成的垫片，可通过垫片缓冲Dome按压时与线路板碰撞产生的力，从而降低薄膜按键的按键音，整体上提升最终产品的品质。

Description

一种能降低按键时噪声的按键结构及按键模组 技术领域
本发明公开一种按键结构，特别是一种能降低按键时噪声的按键结构及按键模组。
 背景技术
Dome，全名是metal dome 或dome array 或dome sheet，长期以来习惯于简称，于是便称之为dome，或者dome片。它是一块包含金属弹片（锅仔片）的PET薄片、用在PCB或FPC等线路板上作为开关使用，在使用者与仪器之间起到一个重要的触感型开关的作用。与传统的硅胶按键相比，薄膜按键具有更好的手感、更长的寿命、也可以间接地提高使用导电膜的各类型开关的生产效率。
薄膜按键上的金属弹片（即Dome）位于PCB板上的焊盘导电部位（大部分位于线路板上的金手指上方），当受到按压时，弹片的中心点下凹，接触到PCB上的线路，从而形成回路，电流通过，整个产品就得以正常工作，Dome是开关上的一个重要组成部分，借助于金属弹片的导通性，在操作者和产品之间起到一个优质的开关的作用。同时，利用锅仔片的稳定的回弹力（按下后自动回位）和超长的寿命，给操作者提供优质的触觉反馈。
采用Dome的薄膜按键被广泛应用于各种电子产品中，如：手机侧按键、笔记本电脑触摸板、耳机线控等。采用Dome的薄膜按键由于结构特殊性的限制，使得其在按压和回弹过程中都会有明显的卡顿感觉，即触觉反馈，或称为键程感。但是，采用Dome的薄膜按键在按压过程中，会产生明显的声音，即在按压时，会有“咔、咔、咔”的声音，在高端电子产品中应用，会拉低产品的等级水平，如何降低薄膜按键的按键音，是行业中亟待解决的问题。
 技术问题
针对上述提到的现有技术中的采用Dome的薄膜按键在按键时，会有较强的按键音的缺点，本发明提供一种能降低按键时噪声的按键结构及按键模组，其在线路板和Dome之间设置有软质缓冲导电材料制成的垫片，可通过垫片缓冲Dome按压时与线路板碰撞产生的力，从而降低薄膜按键的按键音。
 技术解决方案
本发明解决其技术问题采用的技术方案是：一种能降低按键时噪声的按键结构，按键结构包括线路板、Dome固定膜、Dome和垫片，线路板上设置有导电线路，导电线路的按键部分包括第一导电电极和第二导电电极，第一导电电极和第二导电电极之间设置有第一绝缘部，Dome对应于导电线路上的按键部分设置，Dome固定膜设置在Dome上方， Dome和线路板之间设置有软质缓冲导电材料制成的垫片。
一种按键模组，按键模组包括如上述的能降低按键时噪声的按键结构。
本发明解决其技术问题采用的技术方案进一步还包括：
所述的Dome固定设置在Dome固定膜上。
所述的Dome固定膜上固定设置有不干胶层，Dome通过不干胶层粘合在Dome固定膜上。
所述的Dome固定膜上开设有第一导气槽，第一导气槽对应于Dome边缘位置处设置。
所述的Dome顶部或底部中央位置固定设置有凸点。
所述的软质缓冲导电材料制成的垫片采用包含但不限于导电泡棉或导电硅胶等材质。
所述的垫片吸附在Dome内侧。
所述的垫片中间设置有第三导电电极，第三导电电极外侧设置有第四导电电极，第三导电电极和第四导电电极之间设有第二绝缘部，第三导电电极对应于线路板上的第一导电电极设置，第三导电电极与第一导电电极形状相对应，第四导电电极对应于线路板上的第二导电电极设置，第四导电电极与第二导电电极形状相对应。
所述的垫片上开设有第二导气槽，第二导气槽对应于Dome固定膜上的第一导气槽设置。
 有益效果
本发明的有益效果是：本发明在线路板和Dome之间设置有软质缓冲导电材料制成的垫片，可通过垫片缓冲Dome按压时与线路板碰撞产生的力，从而降低薄膜按键的按键音，整体上提升最终产品的品质。
 附图说明
图1为本发明实施例一立体结构示意图。
图2为本发明实施例一另一视角立体结构示意图。
图3为本发明实施例二立体结构示意图。
图4为本发明实施例二另一视角立体结构示意图。
图中，1-线路板，2-Dome固定膜，3-Dome，4-垫片，5-第一导电电极，6-第二导电电极，7-第一绝缘部，8-第一导气槽，9-第三导电电极，10-第四导电电极，11-第二绝缘部，12-第二导气槽。
 本发明的最佳实施方式
本实施例为本发明优选实施方式，其他凡其原理和基本结构与本实施例相同或近似的，均在本发明保护范围之内。
请结合参看附图1至附图4，本发明结构主要包括线路板1、Dome固定膜2、Dome3和垫片4，线路板1上设置有导电线路，导电线路的按键部分包括第一导电电极5和第二导电电极6，第一导电电极5和第二导电电极6之间设置有第一绝缘部7，使按键部分的第一导电电极5和第二导电电极6之间相互绝缘，Dome3对应于导电线路上的按键部分设置，Dome固定膜2设置在Dome3上，Dome3固定设置在Dome固定膜2上，Dome3和线路板1之间设置有软质缓冲导电材料制成的垫片4。
本实施例中，Dome固定膜2上固定设置有不干胶层，Dome3通过不干胶层粘合在Dome固定膜2上。本实施例中，Dome固定膜2上开设有第一导气槽8，第一导气槽8对应于Dome3边缘位置处设置，可通过第一导气槽8将按压Dome3时的产生的空气导出，以使其按压更加顺利。
本实施例中，Dome3顶部或底部中央位置固定设置有凸点（或称为Plunger），可增强按压时的手感。
本实施例中，软质缓冲导电材料制成的垫片4采用包含但不限于导电泡棉或导电硅胶等材质，可通过软质缓冲导电材料制成的垫片4对Dome3按压时对线路板1的冲击起到缓冲作用，从而降低按压时产生的声音。
下面将以两个具体实例对本发明结构做进一步说明。
实施例一：请参看附图1和附图2，本实施例中，线路板1采用PCB，线路板1上固定设置有第一导电电极5和第二导电电极6，第一导电电极5呈圆盘形，第二导电电极6呈圆环形，第二导电电极6套设在第一导电电极5外侧，第一导电电极5和第二导电电极6之间为第一绝缘部7，第一绝缘部7呈环形，第一导电电极5和第二导电电极6分别与线路板1上的导电线路电连接，Dome3压下时，可通过垫片4导通第一导电电极5和第二导电电极6，从而实现按键导通。本实施例中，软质缓冲导电材料制成的垫片4形状不固定，只要满足有效导通面积覆盖Dome面积即可，垫片4较薄较软，可吸附在Dome3内侧，随Dome3的形状变化而变化，本实施例中，垫片4形状大于Dome3，垫片4四角位置分别粘贴在Dome固定膜2上，可将垫片4固定，具体实施时，垫片4需满足可在下压时导通第一导电电极5和第二导电电极6，并可以粘贴在Dome固定膜2或Dome3上即可，Dome3上方设置有Dome固定膜2，通过Dome固定膜2将Dome3和垫片4一起固定在线路板1上。
实施例二：请参看附图3和附图4，本实施例中，线路板1采用PCB，线路板1上固定设置有第一导电电极5和第二导电电极6，第一导电电极5呈圆盘形，第二导电电极6呈圆环形，第二导电电极6套设在第一导电电极5外侧，第一导电电极5和第二导电电极6之间为第一绝缘部7，第一绝缘部7呈环形，第一导电电极5和第二导电电极6分别与线路板1上的导电线路电连接，软质缓冲导电材料制成的垫片4形状不固定，只要满足有效导通面积覆盖Dome面积即可，本实施例中，垫片4较厚较硬，不能随Dome3的形状变化而变化，本实施例中，垫片4中间设置有第三导电电极9，第三导电电极9外侧设置有第四导电电极10，第三导电电极9和第四导电电极10之间设有第二绝缘部11，使第三导电电极9和第四导电电极10之间相互绝缘，本实施例中，第三导电电极9对应于线路板1上的第一导电电极5设置，第三导电电极9与第一导电电极5形状相对应，第四导电电极10对应于线路板1上的第二导电电极6设置，第四导电电极与第二导电电极6形状相对应，10Dome3压下时，可通过Dome3导通第三导电电极9和第四导电电极10，通过第三导电电极9和第四导电电极10间接导通第一导电电极5和第二导电电极6，从而实现按键导通。软质导电材料制成的垫片4呈方形，本实施例中，垫片4形状大于Dome3，垫片4四角位置分别粘贴在Dome固定膜2上，可将垫片4固定，具体实施时，垫片4需满足可在Dome3下压时能够导通第三导电电极9和第四导电电极10，并通过第三导电电极9和第四导电电极10导通第一导电电极5和第二导电电极6，并可以粘贴在Dome固定膜2或Dome3上即可，Dome3上方设置有Dome固定膜2，通过Dome固定膜2将Dome3和垫片4一起固定在线路板1上。本实施例中，垫片4上开设有第二导气槽12，第二导气槽12对应于Dome固定膜2上的第一导气槽8设置。
上述实施例中，线路板1采用PCB板，具体实施时，线路板1还可以采用FPC，或者软硬结合板。
上述实施例中，第一导电电极5采用圆盘形，第二导电电极6采用圆环形，具体实施时，第一导电电极5和第二导电电极6还可以采用“山”字形、半圆形、长条形等结构，第三导电电极9和第四导电电极10形状分别与第一导电电极5和第二导电电极6相对应。
本发明在使用时，按下Dome3，通过垫片4直接导通第一导电电极5和第二导电电极6，或通过Dome3导通垫片4上的第三导电电极9和第四导电电极10，通过第三导电电极9和第四导电电极10间接导通第一导电电极5和第二导电电极6，从而实现按键导通。
本发明在线路板和Dome之间设置有软质缓冲导电材料制成的垫片，可通过垫片缓冲Dome按压时与线路板碰撞产生的力，从而降低薄膜按键的按键音，整体上提升最终产品的品质。

Claims (10)

  1. 一种能降低按键时噪声的按键结构，其特征是：所述的按键结构包括线路板、Dome固定膜、Dome和垫片，线路板上设置有导电线路，导电线路的按键部分包括第一导电电极和第二导电电极，第一导电电极和第二导电电极之间设置有第一绝缘部，Dome对应于导电线路上的按键部分设置，Dome固定膜设置在Dome上方， Dome和线路板之间设置有软质缓冲导电材料制成的垫片。
  2. 根据权利要求1所述的能降低按键时噪声的按键结构，其特征是：所述的Dome固定设置在Dome固定膜上。
  3. 根据权利要求2所述的能降低按键时噪声的按键结构，其特征是：所述的Dome固定膜上固定设置有不干胶层，Dome通过不干胶层粘合在Dome固定膜上。
  4. 根据权利要求1所述的能降低按键时噪声的按键结构，其特征是：所述的Dome固定膜上开设有第一导气槽，第一导气槽对应于Dome边缘位置处设置。
  5. 根据权利要求1所述的能降低按键时噪声的按键结构，其特征是：所述的Dome顶部或底部中央位置固定设置有凸点。
  6. 根据权利要求1所述的能降低按键时噪声的按键结构，其特征是：所述的软质缓冲导电材料制成的垫片采用导电泡棉或导电硅胶。
  7. 根据权利要求1所述的能降低按键时噪声的按键结构，其特征是：所述的垫片贴附在Dome内侧。
  8. 根据权利要求1所述的能降低按键时噪声的按键结构，其特征是：所述的垫片中间设置有第三导电电极，第三导电电极外侧设置有第四导电电极，第三导电电极和第四导电电极之间设有第二绝缘部，第三导电电极对应于线路板上的第一导电电极设置，第三导电电极与第一导电电极形状相对应，第四导电电极对应于线路板上的第二导电电极设置，第四导电电极与第二导电电极形状相对应。
  9. 根据权利要求1所述的能降低按键时噪声的按键结构，其特征是：所述的垫片上开设有第二导气槽，第二导气槽对应于Dome固定膜上的第一导气槽设置。
  10. 一种按键模组，其特征是：所述的按键模组包括如权利要求1至9中任意一项所述的能降低按键时噪声的按键结构。
PCT/CN2018/094937 2018-07-09 2018-07-09 一种能降低按键时噪声的按键结构及按键模组 WO2020010481A1 (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103367008A (zh) * 2013-07-12 2013-10-23 洪贵顺 电脑薄膜开关键盘
CN206059247U (zh) * 2016-09-26 2017-03-29 广东欧珀移动通信有限公司 锅仔片按键及电子设备
CN106898515A (zh) * 2015-11-13 2017-06-27 联想（新加坡）私人有限公司 开关装置以及电子设备

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103367008A (zh) * 2013-07-12 2013-10-23 洪贵顺 电脑薄膜开关键盘
CN106898515A (zh) * 2015-11-13 2017-06-27 联想（新加坡）私人有限公司 开关装置以及电子设备
CN206059247U (zh) * 2016-09-26 2017-03-29 广东欧珀移动通信有限公司 锅仔片按键及电子设备

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