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1、手机键盘设计资料 Still waters run deep.流静水深流静水深,人静心深人静心深 Where there is life,there is hope。有生命必有希望。有生命必有希望工艺说明:工艺说明:目前市场流行IMD及P+R两大类按键,其中IMD类技术按键一般都会在1.20到1.50美元,P+R类技术按键一般都会在1.50到3.00美元。按键设计与制作中常见的名词:1、镭雕、镭雕(Laser Etching)2、丝印与移印丝印与移印3、双色注塑、双色注塑4、电镀(、电镀(Plating)5、IMD(In Mould Decortion)6、P+R(Plastic+Rubber
2、)电镀(电镀(Plating)在结构设计时有几点也要关注外形要适合于电镀处理:1表面凸起最好控制在0.10.15mm/cm,尽量没有尖锐的边缘。2如果有盲孔的设计,盲孔的深度最好不超过孔径的一半,负责不要对孔的底部的色泽作要求。3要采用适合的壁厚防止变形,最好在1.5mm以上4mm以下,如果需要作的很薄的话,要在相应的位置作加强的结构来保证电镀的变形在可控的范围内。4在设计中要考虑到电镀工艺的需要,由于电镀的工作条件一般在60度到70度的温度范围下,在吊挂的条件下,结构不合理,变形的产生难以避免,所以在塑件的设计中对水口的位置要作关注,同时要有合适的吊挂的位置,防止在吊挂时对有要求的表面带来伤
3、害。另外最好不要在塑件中有金属嵌件存在,由于两者的膨胀系数不同,在温度升高时,电镀液体会渗到缝隙中,对塑件结构造成一定的影响。5要避免采用大面的平面。塑料件在电镀之后反光率提高,平面上的凹坑、局部的轻微凹凸不平都变得很敏感,最终影响产品效果。这种零件可采用略带弧形的造型。6要避免直角和尖角。初做造型和结构的设计人员往往设计出棱角的造型。但是,这样的棱角部位很容易产生应力集中而影响镀层的结合力。而且,这样的部位会造成结瘤现象。因此,方形的轮廓尽量改为曲线形轮廓,或用圆角过渡。造型上一定要要求方的地方,也要在一切角和棱的地方倒圆角R=0.20.3 mm。7不要有过深的凹部,不要有小孔和盲孔,这些部
4、位不仅电镀困难,而且容易残存溶液污染下道工序的溶液。像旋钮和按钮不可避免的盲孔,应从中间留缝。8要考虑留有时装挂的结点部位,结点部位要放在不显眼的位置。可以用挂钩、槽、缝和凸台等位置作接点。对于容易变形的零件,可以专门设计一个小圆环状的装挂部位,等电镀后再除去。9厚度不应太薄,也不要有突变。太薄的零件在电镀过程中受热或首镀层应力的影响容易变形,大的片形零件的厚度一般不应小于3毫米;厚度的突变容易造成应力集中,一般来说厚度差不应超过两倍。10标记和符号要采用流畅的字体,如:圆体、琥珀、彩云等。因多棱多角不适于电镀。流畅的字体容易成形、电镀后外观好。文字凸起的高度以0。3-0。5为宜,斜度65度。
5、11如果能够采用皮纹、滚花等装饰效果要尽量采用,因为降低电镀件的反光率有助于掩盖可能产生的外观缺陷。12尽量不要采用螺纹和金属嵌件,以免电镀时为保护螺纹、嵌件而增加工序。13小件或中空零件,在模具上要尽量设计成一模多件,以节省加工时间和电镀时间,同时也便于电镀时装挂。IMD(In Mould Decortion)IMD(In Mould Decortion)IMD-FI(PC Film+PC Resin)IMD-FI(PC Film+PC Resin)就是将一个已经有丝印图案的FILM放在塑胶模具里进行注塑,此FILM一般可分为三层:基材(一般是PET)、INK(油墨)、耐磨材料(多为一种特殊
6、的胶)。当注塑完成后,FILM和塑胶融为一体,耐磨材料在最外层,其中注塑材料多为PC、PMMA、PBT等等,有耐磨和耐刮伤的作用,还有一种叫IML(In-Mould-Lable)技术,和IMD大致相同,只是在注塑后,FILM就象冲压的料带一样拉出,只是将印刷图案转印到塑胶件上,又称模内转印。1优点:Light weight/Thinner 轻薄/短小Compact in Design 结构精细Smaller packaging size 装配简易Surpassing Abrasion Resistance 永不磨损Allows decoration on 3D geometry and qui
7、ck change over in Color/Graphic 允许三维设计及变化多样的颜色和图案With Polydome or Metaldome Array,Key Film,EL assembly reduces production assembly time and cost 该按键可以和聚脂薄膜(或金属)开关、冷光片组装以减少装配时间和成本Eliminate abrasion test as images is printed and protected inside the PC film消除字体印刷过程中的表面磨损并能保护内部的PC FilmCan apply possibl
8、y many different colors on keypad可以应用于很多不同颜色的按键上Can adapt to many different decortion requirements,by simply changing IMD film可以轻易地改变IMD Film,这样就能够满足许多不同的装饰需要Continuous image transfers with high positioning tolerance(up to 0.20mm)字体成型后的公差为0.2mmReduce production cost as it eliminates the separate dec
9、orating steps of single-or multi-colors images.IMD-FI消除了制作过程中为了印刷一种或多种颜色而必须分开进行的步骤,降低了制作成本可以在小片零件上集成很多种效果,例如电镀,透明,丝网印等,如果用真实的工艺会很困难。2缺点:Maximun key height 4.0mm按键的最大高度为4.0mmHard PC plunger might shorten life span of polydome,Can be overcome by replacing injected PC resin with silicone rubber materia
10、l.较硬的PC触点力可能缩短Polydome的使用寿命。可以用PC树脂和硅胶材料来取代(只有YouEal做得到)Delamination(detachment of PC mold base with top film)might surface.在特殊情况下(如高温等)PC Film 和硅胶底可能会脱落P+R(Plastic+Rubber)P+R(Plastic+Rubber)P+R(Clear Silicone base+Spray painted,P+R(Clear Silicone base+Spray painted,Laser etched Acrylic/PC keycap)La
11、ser etched Acrylic/PC keycap)包括一个压缩模,一个硅胶底和一个注塑的键帽。这些特殊的组件能够用粘合剂或胶水粘合在一起。键帽则根据图纸要求进行喷印和镭射雕刻。此后按键表面再涂上一层U.V.保护层。Components shall involve compression molded silicone rubber base,injection molded keycaps.The individual components are then assembled together by the use of adhesive tape/glue.Keycaps are
12、sprayed painted and laser etched with the desired graphic.Thereafter key surface are protected with a layer of UV coat.1优点:High keypad flexibility with silicone rubber base.使用硅胶作为基底使得按键具有较高的柔韧性Able to obtain hard keytop with comlex,appealing designs.能够在较复杂和具有吸引力的设计上获得较坚固的KeytopAble to produce keypad
13、 with wide combination of keycaps(spray painted/chromed/medalized/and laser etched,clear with second surfase printing)能够适用于不同类型的键帽(如喷印,镭雕,底部丝印等)No limitation on key heigh.t键的高度没有范围Able to meet abrasion requirement of at least 80RCA cycles for painted top surface印刷表面至少可以达到80 RCA Cycles的表面磨损需求2缺点:More
14、 operation processes when compared with IMD processes keypads 相比于IMD按键的制作过程,P+R的步骤比较繁琐More control required in printing,laser marking,and assembling positioning.对印刷,镭射雕刻和装配过程会有比较多的监控要求Flange dimensions/allowance to be considered during overall assembly of keypads,frong housing and PCB.在装配键盘,外壳和PCB板时
15、,必须考虑到边缘的尺寸Platformformostapplications一般用途Examples:Laser-etched,P+R,Key-Film+R,Polydome Assembly,Metaldome Assembly,Spray painted keymat(例如:镭雕,塑料+硅胶,IMD+硅胶,组装弹性导电薄膜和金属导电薄膜,键面喷涂)Variouscolors,materialdurometer,printingoptionstomeetaestheticrequirements根据美工要求可选择多种颜色,材料硬度,印刷工艺。Examples:Color Keycap,Dur
16、ometer Keycap,Positive Printing,Negative Printing例如:彩色键帽,硬键帽,正面印刷,反面印刷等。ProvidesSealingCapabilities特殊组装需要Built-in features:sealing ring/rib,boss,undercut,“holeless”keymat防水,倒钩角,固定角等Economy经济实惠Creative designed key mat can be cost effective and meeting aesthetic requirements(按键有创意的设计能有效的节约成本和符合美工要求)G
17、eneral Silicone RubberGeneral Silicone Rubber通用硅胶通用硅胶通用硅胶通用硅胶Laser-Etched/Night VisionLaser-Etched/Night Vision镭射雕刻镭射雕刻镭射雕刻镭射雕刻/透光效果透光效果透光效果透光效果Enhance Product Value提高产品价值Control Light Emitting Passage字体透光透光透光/镭射雕刻镭射雕刻硅胶制品硅胶制品IMD成型成型精密橡胶制品精密橡胶制品Key-Film(IMD)Light weight/Thinner轻薄/短小Compact in Design
18、结构精细Smaller packaging size装配简易Surpassing Abrasion Resistance永不磨损Allows decoration on 3D geometry and quick change over in Color/Graphic 允许三维设计及变化多样的颜色和图案With Polydome or Metaldome Array,Key Film,EL assembly reduces production assembly time and cost该按键可以和聚脂薄膜(或金属)开关、冷光片组装以减少装配时间和成本CURRENT TECHNOLOGY/
19、Silicone KeypadsLaser Etched KeypadsvSharp and clear illumination of keytop legendsvContrast enhancementvExcellent backlightingvBroad range of metallic coloursvHard key feelingvHigh abrasion resistancevNatural drop shapevGlossy and semi-glossy finishesCURRENT TECHNOLOGY/Silicone KeypadsEpoxy Keytops
20、CURRENT TECHNOLOGY/Plastic+RubberBack PrintingvLifetime abrasion resistancevHard key feelingvMagnification effectvLow noise solutionvWaterproof and dustproof solutionSpray and Laser EtchedvSharp corner radiusvBridgeless solutionvCase colour matchingvBacklighting solutionMetallic ColourCURRENT TECHNO
21、LOGY/Plastic+RubberCURRENT TECHNOLOGY/I.M.D.KeypadsvThinnest and lightest keypad solutionv3D profile expertisevTall key expertisevLife time abrasion resistance(Second surface printing)Key Film+Rubber(IMD&P+R)The benefits of Key Film,decoration capabilities and abrasion The benefits of Key Film,decor
22、ation capabilities and abrasion resistance,have been the main consideration for Key Film+R productresistance,have been the main consideration for Key Film+R product 塑料与硅胶结合可达到柔和的手感及耐磨效果塑料与硅胶结合可达到柔和的手感及耐磨效果塑料与硅胶结合可达到柔和的手感及耐磨效果塑料与硅胶结合可达到柔和的手感及耐磨效果 Rubber provides the base platform to received plastic
23、caps or sealing Rubber provides the base platform to received plastic caps or sealing features requiredfeatures required CURRENT TECHNOLOGY/I.M.D+RubberI.M.D.+Rubber/I.M.D.with Shoulder&Group KeysGroupvLife time abrasion resistance vHard key feelingvExcellent backlighting(No light leakage)vWaterproo
24、f and dustproof solutionCURRENT TECHNOLOGY/I.M.D+RubberTall KeysvTall key expertise(5.0mm)vIndividual keys linked with flexible bridgevBlack foil to avoid light leakageCURRENT TECHNOLOGY/I.M.D+RubberTall Key Solution with I.M.D4.0mm4.0mmvRubber key height increased to achieve overall dimension great
25、er than 4.00mmvI.M.D.shoulder-less solutionCURRENT TECHNOLOGY/I.M.D.+RubberAlternative to Plastic+RubberI.M.D+RUBBERPLASTIC+RUBBERvI.M.D.provides a better abrasion and chemical resistance performancevI.M.D.provides a cost effective solutionPlastic+Rubber(P+R)Metallised plastic caps,Spray-painted pla
26、stic caps,Injected plastic caps Metallised plastic caps,Spray-painted plastic caps,Injected plastic caps or Electroplated plastic caps assembled with Silicone rubber offers a or Electroplated plastic caps assembled with Silicone rubber offers a unique application in switch technologyunique applicati
27、on in switch technology 特殊表面喷涂或电镀工艺具优质金属感的注塑键帽和硅胶组装产品。特殊表面喷涂或电镀工艺具优质金属感的注塑键帽和硅胶组装产品。特殊表面喷涂或电镀工艺具优质金属感的注塑键帽和硅胶组装产品。特殊表面喷涂或电镀工艺具优质金属感的注塑键帽和硅胶组装产品。Creatively used P+R to enhance the value and aesthetic appearance of Creatively used P+R to enhance the value and aesthetic appearance of productsproductsCU
28、RRENT TECHNOLOGY/MetalizationDouble InjectionvExcellent abrasion resistancevDouble cosmetic effectvLarge backlighting areaAPPLICATION/Low Profile SolutionLow Profile Solution vUltra low profile:(1.4mm)vPrevent light leakagevHard key feelingAPPLICATION/Navigator SolutionI.M.D+Rubber navi-keys(5 ways)
29、v4 directional actuations+center actuationvLow profile solution:2.00mmvExcellent abrasion resistancevFinger nail mark resistanceAPPLICATION/Navigator SolutionPlastic+Rubber+Chrome Plated(4 ways)vLow profile 4 ways navigator:1.60mmvMetalization optionsvBack printing optionsAPPLICATION/Navigator Solut
30、ionI.M.D+Rubber Ring(4 ways)vLow profile 4 ways navigator:1.50mmvIndividual key actuationvCosmetic rubber ringAPPLICATION/Navigator SolutionPlastic+Rubber(5 ways)SiliconeCarbon contactPolydomev4 directional actuations with soft touchvCenter actuation with click feelingvIndependent center keyAPPLICAT
31、ION/Navigator SolutionPlastic+Rubber(5 ways Toggle)vJoystick designv5 directional actuationsvCenter actuation with click feelingv4 directional actuations with soft touchAPPLICATION/Navigator SolutionI.M.D.+Rubber(5 ways Tall)v5 ways actuation navigatorvIndependent center keyvExcellent abrasion resis
32、tanceAPPLICATION/Low Profile SolutionvLow profile:2.00mmvEnhances life of poly domesvFinger nail mark resistanceAPPLICATION/Navigator SolutionI.M.D:3 way Navi-keys with tact switches vIntegrated I.M.D.navigator keyv3 ways actuation:up/down/center actuationvExcellent abrasion resistanceAPPLICATION/Na
33、vigator SolutionvFloating plastic cap on rubberPlastic+Rubber:3 ways Navi-key with tact switches 参考范例(参考范例(GSM2560Keypad)设计参考:1Pad点与Dome点的距离应在0.05mm到0.08mm之间。2Pad点的高度应在0.20mm以上,直径应在2.00mm以上。3Gsm2560类按键的单键之间的间隙可在0.15mm以上。4按键与Housing之间的间隙可在0.12mm以上。5Key-top的高度可在0.60mm以上。6TPU可实现0.25mm的结构。7Key-top与Key-p
34、ad之间的间隙应在0.20mm(行程)以上。8Key-top与Housing的段差视状况而定,一般高出0.05mm到0.10mm之间。9定位于Housing的位置不应离Pad点太近,或者与Pad点不在一条垂直或水平线上。问题点的发现及其可能产生原因:问题点的发现及其可能产生原因:1手感不良A/PAD点的高度?有无压伤或缺料?B/TPU的品质?过硬?C/Dome是否良品?D/单键产品的分模线及其帽沿的剪切效果?E/料头太大?F/与Housing配合的间隙?键之间的间隙?2外观不良A/电镀线不平整?B/各键之间的间隙不一以及上下不平齐?C/盲点效果?D/色差?E/镭雕效果?F/印刷的品质?G/注塑
35、件缩水?H/印刷与喷涂的附着力?表面杂质?3透光不良A/背面印刷品质?B/Led灯的位置设计?C/热压粘胶不均,不成形状!PK-Plastic Key Top Type 1(塑料套按键塑料套按键 1)常用的技术常用的技术普通普通底部丝印(底部和顶部)特殊特殊半镜面热冲压真空电镀NO尺寸尺寸10.51.0mm2Polydome:0.7mmMetaldome:0.4mm3D14D1+0.61.0mm50.250.3mm60.71.2mml结合Acrylic(原料)按键和硅胶基底l底部丝印(表面完全不会擦伤)l适用于棒型的移动电话 PK-2 Plastic Key Top Type 2(塑料套按键塑
36、料套按键 2)常用的技术常用的技术普通普通Metallicspray镭射雕刻和上保护层特殊特殊MetallicPlating真空电镀嵌入Film和切割半透明喷漆NO尺寸尺寸10.51.0mm2Polydome:0.7mmMetaldome:0.4mm3D14D1+0.61.0mm50.250.3mm60.71.2mml结合Acrylic(原料)按键和硅胶基底l喷漆和镭射雕刻l适用于外观吸引人的移动电话 Film Insert Laser Type l适用于小的,轻的,品质较高的移动电话l新技术的开发是为了使按键更亮,表面不易擦伤,保证高品质和耐用性l相似于LM(Laser Marking Ty
37、pe)的加工过程,除了原料的选用(塑料或者是嵌入Film的硅胶)l外观比FI(Film Insert)更为美观和吸引人 NO种类种类尺寸尺寸1常有高度0.68.0mm2总高度0.98.3mm3接触到Boss的高度0.42.0mm4内部直径最小1.8mmNO种类种类尺寸尺寸5保护层的厚度App.0.05mm6U.V.保护层1015祄7黑漆0.02mm8Film的塑料树脂厚度0.125mmSA Special Assembly Type NODescriptionDimension1按键的空隙0.150.5mm2中风的间隙0.40.5mm3Film的厚度0.150.20mm4SiliconeDualCoatedTape0.10.15mm51.02.0mml完全自动化的专业装配l有吸引力的豪华外表l为理想的高品质的移动电话而设计 上海夏新电子开发有限公司上海夏新电子开发有限公司ShangHai AMOI -Pier.HeShangHai AMOI -Pier.He2004-03-022004-03-02
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