WO2018036376A1 - 一种具有复位功能的防水膜以及防水按键 - Google Patents

一种具有复位功能的防水膜以及防水按键 Download PDF

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Publication number
WO2018036376A1
WO2018036376A1 PCT/CN2017/096334 CN2017096334W WO2018036376A1 WO 2018036376 A1 WO2018036376 A1 WO 2018036376A1 CN 2017096334 W CN2017096334 W CN 2017096334W WO 2018036376 A1 WO2018036376 A1 WO 2018036376A1
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WO
WIPO (PCT)
Prior art keywords
waterproof
button
waterproof membrane
waterproof film
column
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/096334
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English (en)
French (fr)
Inventor
王艳丽
吕艳芬
黄涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Drum Washing Machine Co Ltd
Original Assignee
Qingdao Haier Drum Washing Machine Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Drum Washing Machine Co Ltd filed Critical Qingdao Haier Drum Washing Machine Co Ltd
Publication of WO2018036376A1 publication Critical patent/WO2018036376A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
    • 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
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
    • H01H13/063—Casings hermetically closed by a diaphragm through which passes an actuating member
    • 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
    • H01H13/86—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 characterised by the casing, e.g. sealed casings or casings reducible in size
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/068—Properties of the membrane
    • H01H2209/074—Properties of the membrane elastomeric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/002—Casings sealed
    • H01H2223/003—Membrane embracing all keys

Definitions

  • the present invention relates to the technical field of key components, and in particular to a waterproof film having a reset function and a waterproof button having the waterproof film.
  • a common solution to this situation is to add a waterproof member to a suitable part between the mechanical button and the computer board or at a suitable location.
  • a waterproof member for example, the Chinese patent 201220635221.2 public drum washing machine button waterproof board, the button waterproof board is set between the computer board and the button, there is a button on the computer board, and the button end is provided with a button end extension Hole, above the button is the button, the button is pressed on the button to close.
  • the waterproofness of the buttons of the washing machine is improved, and the water bead can be prevented from flowing into the computer board through the gap between the button and the control panel; however, since the through hole of the button end is provided on the button waterproof board, The water reaching the waterproof pad of the button may penetrate into the computer board through the through hole; and in order to reset after the button is pressed, a reset spring is generally required, which makes the button structure complicated and costly.
  • the present invention is directed to the above-mentioned problems existing in the prior art, and provides a waterproof film having a reset function, which has a simple structure and a good waterproof effect. [0006] In order to achieve the above technical purpose, the present invention is implemented by the following technical solutions:
  • a waterproof film having a reset function includes a waterproof film body, a column, and an elastic return portion sealingly connecting the waterproof film body and the column, and the elastic return portion surrounds the outer side of the column.
  • the elastic return portion includes an arc-shaped deformation portion that extends inward and upward and is convex.
  • the elastic return portion further includes a connecting portion extending horizontally along an inner side of the deforming portion, and the connecting portion is connected to a side surface of the pressing column.
  • the elastic return portion further includes an upward flange extending outward along an outer side of the deformation portion.
  • the edge of the waterproof membrane body is provided with an upwardly extending water retaining rib.
  • an edge of the waterproof film body is provided with a bow flow extending away from the elastic return portion.
  • the waterproof membrane body is provided with a drainage groove, and at least one end of the drainage groove is located at an edge of the waterproof membrane body.
  • the present invention Based on the above waterproof film having a reset function, the present invention also provides a waterproof button having the above waterproof film, which has a simple structure, a low cost, and a good waterproof effect.
  • a waterproof button comprising a computer board and the waterproof membrane above the computer board.
  • the waterproof button further includes a button body, and the button body is located above the waterproof film.
  • the button body ⁇ When the button body ⁇ is pressed, the button body pushes the column to move downward.
  • the computer board is provided with a button, and the column moves downward and touches the button.
  • the waterproof button further includes a bracket disposed between the computer board and the waterproof membrane, and the waterproof membrane is fixed on the bracket.
  • the bracket is provided with an protruding hole that matches the pressing column, and the pressing column protrudes downward from the protruding hole.
  • annular boss is disposed on the bracket near the protruding hole, and the waterproof film body is provided with a groove matching the boss, and the boss is located in the concave Inside the slot.
  • the waterproof membrane body is provided with a plurality of downwardly extending positioning posts, and the bracket is provided with a positioning hole matched with the positioning pillar.
  • the waterproof membrane body is provided with a plurality of downwardly extending plug posts, and the lower end of the plug posts is provided a blocking portion extending radially outward of the plug, the bracket is provided with a plug hole matching the plug.
  • the waterproof membrane with a reset function provided by the present invention is provided by sealingly connecting the waterproof membrane body and the column by providing an elastic return portion, so that the waterproof membrane has good waterproof performance, even if water reaches the upper surface of the waterproof membrane, It may pass through the waterproof membrane to reach the computer board, which increases the waterproof performance of the waterproof membrane and improves the safety of the button.
  • the pressing column By setting the pressing column, the pressing function for the button can be realized, and the button for the button is prevented from being set on the waterproof membrane.
  • the through hole through which the body passes, and the elastic return portion are arranged, so that the column can be automatically pressed by the elastic reset portion when pressed downward, thereby eliminating the spring in the traditional design, optimizing the product structure and reducing the product cost. And the flexible user experience of the waterproof membrane is better than that of the spring, which enhances the button feel effect and helps to improve customer satisfaction.
  • FIG. 1 is a schematic structural view of an embodiment of a waterproof membrane with a reset function according to the present invention
  • FIG. 2 is a cross-sectional view of the structure taken along line A-A of FIG. 1;
  • FIG. 3 is an enlarged schematic structural view of a region B in FIG. 2;
  • FIG. 4 is a schematic structural view of a control panel of a washing machine having the waterproof film of FIG. 1;
  • Figure 5 is a cross-sectional view showing the structure taken along line C-C of Figure 4.
  • FIG. 6 is a schematic enlarged view of an area E of FIG. 5; [0029] FIG.
  • FIG. 7 is a schematic enlarged view of the D-D cross-sectional view of FIG. 4;
  • FIG. 8 is a schematic enlarged view of the E region of FIG. 7.
  • the waterproof membrane 1 having a reset function includes a waterproof membrane body 11, a column 13, and an elastic return portion 12.
  • the elastic returning portion 12 is disposed between the waterproof membrane main body 11 and the pressing column 13, and is sealingly connected to the waterproof membrane main body 11 and the pressing column 13, and the elastic returning portion 12 is wound around the outer side of the pressing column 13. After the downward movement of the column 13 , the elastic return portion 12 is deformed; when the pressing force acting on the column 13 is removed, the elastic return portion 12 is initially deformed and reset, and the column 13 is moved upward and reset.
  • the column 13 has an automatic reset function, which avoids the provision of the elastic reset structure for resetting the button, and the elastic return portion 12 follows the column 13 to move downward.
  • the pulling of the waterproof membrane body 11 by pressing the column 13 is avoided, the firmness of the waterproof membrane 1 is increased, the waterproof performance of the waterproof membrane 1 is ensured, and the elasticity of the button is increased, and the hand feeling is increased.
  • the body 11 is provided with an upwardly convex elastic return portion 12, so that the waterproof film 1 is a complete film having good waterproof performance; even if water reaches the upper surface of the waterproof film 1, it is impossible to pass through the waterproof film 1
  • the waterproof performance of the waterproof membrane is added, and the safety of the flexible waterproof button is improved; and the structure is simple, which is advantageous for reducing the product cost.
  • a plurality of pressing columns 13 and an elastic returning portion 12 are provided on the waterproof membrane 1, and the column 13 is located at the center of the elastic returning portion 12, and is elastically reset.
  • the portion 12 is upwardly convex
  • the elastic returning portion 12 includes a supporting portion 123, a deforming portion 122 and a connecting portion 121 which are sequentially connected from the outside to the inside, and are in the vicinity of the direction of the axis of the column 13 and vice versa; wherein the connecting portion 121 is The horizontal annular plane, the connecting portion 12 1 is connected to the side surface of the pressing column 13;
  • the cross-section of the deforming portion 122 is an arc extending inwardly and convexly, deforming after being pressed, and providing a force for resetting, by providing the deforming portion 122
  • the convex arc has a good resilient force, so that the deformation of the column is ensured, and the deformation of the column is ensured.
  • the deformation portion 122 is disposed to extend upward, so that the elastic return portion 12 protrudes from the waterproof membrane body 11.
  • the lower force is deformed downwardly; and the support portion 123 is in the shape of an upward flange, that is, an arc extending downward and then extending upward, and the support portion 123 is
  • the semicircular arc surface mainly serves as a support, and the outer end of the support portion 123 is connected to the waterproof membrane body 11.
  • the elastic return portion 12 has a function of good elastic deformation and resetting by the cooperation of the connecting portion 121, the deforming portion 122, and the supporting portion 123.
  • the front edge of the waterproof membrane body 11 is provided with an upwardly extending water retaining rib 11 and a forwardly extending drainage portion 112, and also on the left and right sides of the drainage portion 112.
  • a water retaining rib 111 is provided.
  • a drain groove 113 is provided at the rear of the water-repellent film body 11, and the left end of the drain groove 113 is located at the edge of the waterproof film body 11.
  • the front and rear and left and right sides mentioned are relative to the user in the normal use case, and the water retaining ribs 111, the drainage portion 112, and the drainage groove 113 are provided, and if water drops fall on the waterproof membrane 1, The water droplets may flow forward through the drain portion 112 or flow out from the left side through the drain groove 113 to avoid accumulation on the surface of the waterproof membrane 1, and in particular to prevent water flowing down from the waterproof membrane body 11 from reaching the computer board, thereby increasing safety.
  • the waterproof membrane 1 is integrally injection molded, and is made of a flexible material, preferably a silica gel material.
  • the waterproof film in the embodiment is applied to a waterproof button of a washing machine, and the waterproof button is disposed on the control panel 10 of the washing machine, and the waterproof button includes a computer board 2 and covers the computer board 2
  • the waterproof membrane 1 and the button body 3 are mounted on the control panel 10 and can be moved up and down.
  • the button body 3 is in contact with the column 13, and the keyboard 2 is provided on the computer board 2.
  • the user pushes the button body 3 downwardly and pushes down the column 13 to move downwards, so that the elastic return portion 12 is deformed downward; pressing the column 13 and pressing the button 21 21; then the user looses the hand, so that The column 13 is vertically reset by the elastic returning portion 12, and the button body 12 is pushed to push the button body 3 upward to reset, so that the waterproof button structure is simple, the waterproof effect is good, and the elastic reset structure of the button body 3 is avoided, and the cost is relatively low. low.
  • a bracket 4 is disposed between the computer board 2 and the waterproof membrane 1, and the waterproof membrane 1 is fixed on the bracket 4.
  • the bracket 4 is fixed to the computer board by a snap structure.
  • the support bracket 4 is provided for facilitating the support of the waterproof membrane 1 and improving the stability of the structure; and the waterproof membrane 1 is a flexible material, and the fixing ⁇ requires more positioning buckle structures, thereby avoiding excessive setting on the computer board 1
  • the through hole increases the difficulty in circuit arrangement on the computer board 1 and reduces the strength of the computer board 1.
  • an extension hole matching the column 13 is provided on the bracket 4, and the column 13 is passed downward through the protrusion hole.
  • the protruding hole is matched with the elastic return portion 12, so that the elastic return portion 12 can be located in the protruding hole or extended after being deformed, and the elastic deformation range of the elastic return portion 12 is increased, so that the column 13 is moved downward. The moving distance increases.
  • an annular boss 41 is disposed on the bracket 4 near the protruding hole, and a concave surface matching the boss 41 is disposed on the waterproof film body 11.
  • the groove 116, the boss 41 is located in the groove 116.
  • a plurality of downwardly extending positioning posts 114 and plug posts 115 are disposed on the waterproof membrane body 11, and the brackets 4 are respectively provided with positioning posts.
  • the height of the positioning post 114 is greater than the height of the plug 115.
  • the lower end of the plug 115 is provided with a blocking portion extending radially outward along the plug 115, and the blocking portion is in contact with the lower end surface of the bracket 4.

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  • Push-Button Switches (AREA)

Abstract

一种具有复位功能的防水膜（1）以及防水按键，所述防水膜（1）包括防水膜本体（11）、按柱（13）、以及密封连接所述防水膜本体（11）和按柱（13）的弹性复位部（12），所述弹性复位部（12）环绕在所述按柱（13）的外侧。通过设置弹性复位部（12）密封连接所述防水膜本体（11）和按柱（13），使得防水膜（1）具有良好防水性能，即使有水到达防水膜（1）的上表面，也不可能穿过防水膜（1）到达电脑板（2）上，增加了防水膜（1）的防水性能，提高按键的安全性；通过设置按柱（13），可以实现对于按键开关（21）的按压功能，避免了在防水膜（1）上开设用于按键本体（3）穿过的通孔，以及设置弹性复位部（12），使得按柱（13）向下按压后可以在弹性复位部（12）的带动下自动复位，省去了传统设计中的弹簧，降低了产品成本。

Description

一种具有复位功能的防水膜以及防水按键 技术领域
[0001] 本发明属于按键零部件技术领域， 具体涉及一种具有复位功能的防水膜、 以及 具有该防水膜的防水按键。
背景技术
[0002] 随着家电使用普遍性和广泛性的不断提高和近年来家电安全事故发生频率的增 力口， 消费者对家电使用的安全性提出了越来越高的要求， 应消费者呼声， 家电 行业相关标准要求也不断完善和提高。
[0003] 比如， 洗衣机， 尤其是滚筒洗衣机防水性能的要求， 目前虽将电脑板由强弱电 一体式改成强弱电分离式 (电脑板上只有弱电)， 但仍无法完全避免安全隐患， 尤 其是具有机械按键的机型， 某些情况下， 洗衣机上的积水仍可通过按键间隙流 至电脑板上。
技术问题
[0004] 目前针对该情况的常用解决措施是在机械按键与电脑板间的合适部件上或在合 适位置增加防水件。 如中国专利 201220635221.2公幵的滚筒洗衣机按键防水板， 按键防水板设置在电脑板与按键之间， 在电脑板上设有按键幵关， 在按键防水 板上幵设有按键端部伸出的通孔， 在按键幵关的上方为按键， 按键按下后作用 在按键幵关上。 通过设置防水板提高了洗衣机按键的防水性， 可以防止水珠透 过按键与控制面板之间的间隙流入电脑板； 但由于在按键防水板上幵设有按键 端部伸出的通孔， 使得到达按键防水板的水有可能通过通孔渗入电脑板； 并且 为了按键按下后的复位， 一般需要设置复位弹簧， 使得按键结构复杂， 成本较 高。
问题的解决方案
技术解决方案
[0005] 本发明针对现有技术中存在的上述问题， 提供一种具有复位功能的防水膜， 结 构简单、 防水效果好。 [0006] 为达到上述技术目的， 本发明采用以下技术方案实现：
[0007] 一种具有复位功能的防水膜， 包括防水膜本体、 按柱、 以及密封连接所述防水 膜本体和按柱的弹性复位部， 所述弹性复位部环绕在所述按柱的外侧。
[0008] 进一步的， 所述弹性复位部包括向内向上延伸并外凸的弧形的变形部。
[0009] 进一步的， 所述弹性复位部还包括沿所述变形部的内侧水平延伸的连接部， 所 述连接部与所述按柱的侧面连接。
[0010] 进一步的， 所述弹性复位部还包括沿所述变形部的外侧向外延伸的向上翻边。
[0011] 进一步的， 所述防水膜本体的边缘设有向上延伸的挡水筋。
[0012] 进一步的， 所述防水膜本体的边缘设有向远离所述弹性复位部方向延伸的弓 I流 部。
[0013] 进一步的， 所述防水膜本体上设有引流凹槽， 所述引流凹槽的至少一端位于所 述防水膜本体的边缘。
[0014] 基于上述的具有复位功能的防水膜， 本发明还提供一种防水按键， 具有上述的 防水膜， 使得结构简单， 成本较低， 防水效果较好。
[0015] 一种防水按键， 包括电脑板、 以及位于所述电脑板上方的上述防水膜。
[0016] 进一步的， 所述防水按键还包括按键本体， 所述按键本体位于所述防水膜的上 方， 当按压所述按键本体吋， 所述按键本体推动所述按柱向下移动。
[0017] 进一步的， 所述电脑板上设有按键幵关， 所述按柱向下移动并触动所述按键幵 关。
[0018] 进一步的， 所述防水按键还包括设置在所述电脑板和防水膜之间的支架， 所述 防水膜固定在所述支架上。
[0019] 进一步的， 所述支架上幵设有与所述按柱相匹配的伸出孔， 所述按柱向下伸出 所述伸出孔。
[0020] 进一步的， 在所述伸出孔附近的支架上设有环形的凸台， 所述防水膜本体上设 有与所述凸台相匹配的凹槽， 所述凸台位于所述凹槽内。
[0021] 进一步的， 所述防水膜本体上设有多个向下延伸的定位柱， 所述支架上幵设有 与所述定位柱相匹配的定位孔。
[0022] 进一步的， 所述防水膜本体上设有多个向下延伸的塞柱， 所述塞柱的下端设有 沿所述塞柱的径向向外延伸的阻挡部， 所述支架上幵设有与所述塞柱相匹配的 塞孔。
发明的有益效果
有益效果
[0023] 本发明提供的具有复位功能的防水膜， 通过设置弹性复位部密封连接所述防水 膜本体和按柱， 使得防水膜具有良好防水性能， 即使有水到达防水膜的上表面 ， 也不可能穿过防水膜到达电脑板上， 增加了防水膜的防水性能， 提高按键的 安全性； 通过设置按柱， 可以实现对于按键幵关的按压功能， 避免了在防水膜 上幵设用于按键本体穿过的通孔， 以及设置弹性复位部， 使得按柱向下按压后 可以在弹性复位部的带动下自动复位， 省去了传统设计中的弹簧， 优化了产品 结构， 降低了产品成本， 且防水膜的弹性用户体验要优于弹簧， 增强了按键手 感效果， 有利于提高客户的满意度。
对附图的简要说明
附图说明
[0024] 图 1为本发明所提出的具有复位功能的防水膜的一个实施例的结构示意图；
[0025] 图 2为图 1中 A-A向剖视结构示意图；
[0026] 图 3为图 2中 B区域的放大结构示意图；
[0027] 图 4为具有图 1中防水膜的洗衣机控制面板处结构示意图；
[0028] 图 5为图 4中 C-C向剖视结构示意图；
[0029] 图 6为图 5中 E区域的放大结构示意图；
[0030] 图 7为图 4中 D-D向剖视放大结构示意图；
[0031] 图 8为图 7中 E区域的放大结构示意图。
实施该发明的最佳实施例
本发明的最佳实施方式
[0032] 为使本发明实施例的目的、 技术方案和优点更加清楚， 下面将结合本发明实施 例中的附图， 对本发明实施例中的技术方案进行清楚、 完整地描述。
[0033] 在本发明的描述中， 需要说明的是， 术语"内"、 "外"、 "上"、 "下"、 "左"、 " 右"等指示的方位或位置关系为基于附图所示的位置关系， 仅是为了便于描述本 发明和简化描述， 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发明的限制。
[0034] 参见图 1-图 8所示， 是本发明所提出的具有复位功能的防水膜的一个实施例， 具有复位功能的防水膜 1包括防水膜本体 11、 按柱 13、 弹性复位部 12， 弹性复位 部 12设置在防水膜本体 11和按柱 13之间， 并密封连接防水膜本体 11和按柱 13， 弹性复位部 12环绕在按柱 13的外侧。 在按柱 13向下运动吋， 带动弹性复位部 12 变形； 当作用在按柱 13上的按压力撤掉后， 弹性复位部 12幵始变形复位， 并带 动按柱 13向上移动并复位。
[0035] 本实施例中， 通过设置弹性复位部 12使得按柱 13具有了自动复位功能， 避免了 设置弹性复位结构用于按键的复位， 以及弹性复位部 12跟随按柱 13—起向下移 动， 避免了在按柱 13按压吋对于防水膜本体 11的扯拉， 增加防水膜 1固定后的牢 固性， 有利于保证防水膜 1的防水性能； 以及有利于增加按键的弹性， 增加手感 ， 有利于提高客户的满意度； 并且可以通过按柱 13与电脑板上的按键幵关接触 触动按键幵关， 避免了在防水膜 1上幵设用于按键本体穿过的通孔， 以及在防水 膜本体 11上设有向上凸起的弹性复位部 12， 使得防水膜 1为完整的具有良好防水 性能的一张膜； 即使有水到达防水膜 1的上表面， 也不可能穿过防水膜 1到达电 脑板上， 增加了防水膜的防水性能， 提高柔性防水按键的安全性； 并且结构简 单， 有利于降低产品成本。
[0036] 本实施例中， 参见图 2和图 3所示， 在防水膜 1上设有多个按柱 13和弹性复位部 1 2， 按柱 13位于弹性复位部 12的中心位置， 弹性复位部 12向上凸起， 弹性复位部 12包括从外向内依次连接的支撑部 123、 变形部 122和连接部 121， 这里以靠近按 柱 13轴线的方向为内， 反之为外； 其中连接部 121为水平的环形平面， 连接部 12 1与按柱 13的侧面连接； 变形部 122的截面为向内向上延伸并外凸的弧形， 在下 压后变形、 并提供复位的力， 通过设置变形部 122为外凸的弧形， 使得变形部 12 2具有良好的回弹力， 保证了按柱的复位； 设置变形部 122为向上延伸， 也就使 得弹性复位部 12凸出防水膜本体 11， 在受到向下的力吋向下移动变形； 以及支 撑部 123为向上的翻边状， 也就是先向下延伸再向上延伸的弧形， 支撑部 123为 半圆形弧面， 主要起到支撑作用， 支撑部 123的外端与防水膜本体 11连接。 通过 连接部 121、 变形部 122和支撑部 123的配合使得弹性复位部 12具备良好的弹性变 形以及复位的功能。
[0037] 本实施例中， 参见图 1所示， 在防水膜本体 11的前边缘设有向上延伸的挡水筋 1 11和向前延伸的引流部 112， 在引流部 112的左右两侧也设有挡水筋 111。 并在防 水膜本体 11的后部设有引流凹槽 113， 引流凹槽 113的左端位于防水膜本体 11的 边缘。 提到的前后、 左右是以防水膜 1在正常使用情况下相对于用户来说的， 通 过设置挡水筋 111、 引流部 112、 以及引流凹槽 113， 如有水滴落在防水膜 1上， 水滴可以通过引流部 112向前流出、 或者通过引流凹槽 113从左侧流出， 避免堆 积在防水膜 1的表面上， 尤其避免从防水膜本体 11流下的水到达电脑板上， 增加 安全性。
[0038] 本实施例中， 防水膜 1为一体注塑成型的， 为柔性材料制成， 优选硅胶材料。
[0039] 参见图 4-图 8所示， 为本实施例中的防水膜应用于洗衣机的防水按键， 防水按 键设置在洗衣机的控制面板 10上， 防水按键包括电脑板 2、 覆盖在电脑板 2上的 防水膜 1、 以及按键本体 3， 按键本体 3安装在控制面板 10上， 并可上下移动， 按 键本体 3与按柱 13接触， 在电脑板 2上设有按键幵关 21。 用户通过按键本体 3， 使 其向下并推动按柱 13—起向下移动， 同吋使得弹性复位部 12向下变形； 按柱 13 按压并触动按键幵关 21 ; 之后用户松幵手， 使得按柱 13在弹性复位部 12的带动 下向上复位， 同吋按柱 12推动按键本体 3向上复位， 这样使得防水按键结构简单 ， 防水效果好， 避免了设置按键本体 3的弹性复位结构， 成本较低。
[0040] 本实施例中， 参见图 6和图 8所示， 在电脑板 2和防水膜 1之间设有支架 4， 防水 膜 1固定在支架 4上支架 4通过卡扣结构固定在电脑板上； 通设置支架 4有利于对 于防水膜 1的支撑， 提高结构的稳定性； 并且防水膜 1为柔性材料， 固定吋需要 较多的定位卡扣结构， 避免了在电脑板 1上设置过多的通孔， 增加电脑板 1上电 路布置的困难， 以及降低电脑板 1的强度。
[0041] 本实施例中， 在支架 4上幵设有与按柱 13相匹配的伸出孔， 按柱 13向下穿过伸 出孔。 优选伸出孔与弹性复位部 12相匹配， 使得弹性复位部 12变形后可以位于 伸出孔内或者伸出， 增加弹性复位部 12的弹性变形幅度， 使得按柱 13的向下移 动距离增大。
[0042] 本实施例中， 参见图 3和图 6所示， 在伸出孔附近的支架 4上设有环形的凸台 41 ， 在防水膜本体 11上设有与凸台 41相匹配的凹槽 116， 凸台 41位于凹槽 116内。 通过设置凸台 41和凹槽 116， 增加防水膜 1固定在支架 4的牢固性， 避免在按压按 键吋， 防水膜 1的错位、 移动等； 并且设置凸台 41， 增支架 4的强度， 增加支架 4 对于防水膜 1的支撑。
[0043] 本实施例中， 参见图 2和图 6所示， 在防水膜本体 11上设有多个向下延伸的定位 柱 114和塞柱 115， 在支架 4上幵设有分别与定位柱 114和塞柱 115相匹配的定位孔 和塞孔。 其中定位柱 114的高度大于塞柱 115的高度， 在塞柱 115下端设有沿塞柱 115的径向向外延伸的阻挡部， 阻挡部与支架 4的下端面接触。 通过设置定位柱 1 增加防水膜 1安装的定位速度， 并起到一定的固定作用。
[0044] 以上所述， 仅是本发明的较佳实施例而已， 并非是对本发明作其它形式的限制 ， 任何熟悉本专业的技术人员可能利用上述揭示的技术内容加以变更或改型为 等同变化的等效实施例。 但是凡是未脱离本发明技术方案内容， 依据本发明的 技术实质对以上实施例所作的任何简单修改、 等同变化与改型， 仍属于本发明 技术方案的保护范围。

Claims

权利要求书
一种具有复位功能的防水膜， 其特征在于， 包括防水膜本体、 按柱、 以及密封连接所述防水膜本体和按柱的弹性复位部， 所述弹性复位部 环绕在所述按柱的外侧。
根据权利要求 1所述的防水膜， 其特征在于， 所述弹性复位部包括向 内向上延伸并外凸的弧形的变形部。
根据权利要求 2所述的防水膜， 其特征在于， 所述弹性复位部还包括 沿所述变形部的内侧水平延伸的连接部， 所述连接部与所述按柱的侧 面连接。
根据权利要求 2所述的防水膜， 其特征在于， ， 所述弹性复位部还包 括沿所述变形部的外侧向外延伸的向上翻边。
根据权利要求 1至 4任一项所述的防水膜， 其特征在于， 所述防水膜本 体的边缘设有向上延伸的挡水筋。
根据权利要求 1至 4任一项所述的防水膜， 其特征在于， 所述防水膜本 体的边缘设有向远离所述弹性复位部方向延伸的弓 I流部。
根据权利要求 1至 4任一项所述的防水膜， 其特征在于， 所述防水膜本 体上设有弓 I流凹槽， 所述弓 I流凹槽的至少一端位于所述防水膜本体的 边缘。
一种防水按键， 其特征在于， 包括电脑板、 以及位于所述电脑板上方 的权利要求 1至 7任一项所述的防水膜。
根据权利要求 8所述的防水按键， 其特征在于， 所述防水按键还包括 设置在所述电脑板和防水膜之间的支架， 所述防水膜固定在所述支架 上。
根据权利要求 9所述的防水按键， 其特征在于， 所述支架上幵设有与 所述按柱相匹配的伸出孔， 所述按柱向下伸出所述伸出孔； 进一步的 ， 在所述伸出孔附近的支架上设有环形的凸台， 所述防水膜本体上设 有与所述凸台相匹配的凹槽， 所述凸台位于所述凹槽内。
PCT/CN2017/096334 2016-08-26 2017-08-08 一种具有复位功能的防水膜以及防水按键 Ceased WO2018036376A1 (zh)

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