1、矽橡膠按鍵(RubberKey)設(shè)計(jì)8確認(rèn)參考矽橡膠按鍵概述RubberKey按鍵基本結(jié)構(gòu)塑膠面PlasticCap鍵面KeyTop(鐳射雕刻、滴膠、噴/LaserEtching、Potting、Coating)可選擇顏色按鍵OptionalColorInsertionKey斜壁Wall導(dǎo)電部份(接觸)ConductivePart(Contact)氣坑AirPath1. 矽橡膠按鍵按力行程曲線圖按力Force(gram)按力ForceFp峰值控力(Fmax)PeakForce(Fmax)Fc接觸點(diǎn)按力ContactForceFr最小回彈力(Fmin)Min.ReturnForce(Fmin)F

2、m最大回彈力Max.ReturnForce11Fd落差力(FD=Fp-FC)DropForce(Fd=Fp-Fc)T_A丄1''1Fg損耗力(Fg=Fp-Fm)GapForce(Fg=Fp-Fm)行程StrokeS1峰值行程PeakStrokeS2接觸點(diǎn)行程ContactStroke1fffF1行程位置LocationO起始點(diǎn)OriginalPointP峰值點(diǎn)PeakPointC接觸點(diǎn)ContactPointSliokt:2-(mR回彈點(diǎn)ReturnPointM最高回彈力點(diǎn)Max.ReturnPoint位移TravelO-P預(yù)載位移Pre-loadTravelP-C至接觸點(diǎn)位移

3、TravelToContactC-S壓縮段位移PostTravelS-R-M-O回彈位移ReturnTravel2. 不同結(jié)構(gòu)矽橡按鍵特征性能及用途RubberKey類型圖示行程、壓力曲線RubberKey特性FlatConeTypeiForceRange按力範(fàn)圍0350gramsStrokeRange行程範(fàn)圍0.53.0mmri1m11CycleLife壽命(X10)TypicalUses主要用途5002,000Telephone,RemotControl,Automotive,Radio,Toys,Calculator,.etc.電話、搖控器、收音機(jī)、玩具、計(jì)算器等。ForceRange按

4、力範(fàn)圍0250gramsTopCylindricalTypeStrokeRange行程範(fàn)圍0.71.5mmCycleLife壽命(X103)5002,000Telephone,Control,TypicalUses主要用途Toys,GamesCalculator,.etc.電話、搖控器、玩具、遊戲機(jī)、計(jì)算器等。ForceRange按力範(fàn)圍30150gramsStrokeRange行程範(fàn)圍0.53.0mmCycleLife壽命(X103)1,0003,000TypicalUses主要用途Telephone,Control,MeasuringInstruments,Machine.Toys,Off

5、ice電話、搖控器、微型測(cè)量儀、辦公室設(shè)備。DoubleConeF'orceRange按力範(fàn)圍3080gramsStrokeRange行程範(fàn)圍2.04.0mmCycleLife壽命(X10)5,00020,000TypicalUses主要用途Computer,Typewriter,.etc電腦，打字機(jī)等。ForceRange按力範(fàn)圍30200gramsStrokeRange行程範(fàn)圍1.02.5mmCycleLife壽命(X103)5003,000TypicalUses主要用途Telephone,Typewriter,TestInstruments,.etc.電話、打字機(jī)。試驗(yàn)儀Forc

6、eRange按力範(fàn)圍2080gramsStrokeRange行程範(fàn)圍0.21.0mmCycleLife壽命(X10)50010,000TypicalUses主要用途RemoteControl,Calculator,Typewriter,Computer,.etc.搖控器、計(jì)算器、打字機(jī)、電腦等。矽橡膠按鍵結(jié)構(gòu)設(shè)計(jì)RubberKey設(shè)計(jì)的功能要求.按動(dòng)按鍵時(shí)能達(dá)到設(shè)定的功能；無阻、滯、澀的感覺.撤除外力后，按鍵能自動(dòng)、完全復(fù)位.按鍵在按動(dòng)和復(fù)位過程中有良好的手感.保証按下按鍵邊緣位置時(shí)亦有作用。1. RubberKey結(jié)構(gòu)設(shè)計(jì)要點(diǎn).圖示1.外圓每半徑為1.0至1.5mm.2. 最小半徑為0.3m

7、m.3. 最小內(nèi)圓角半徑為0.2mm.4. 定位孔至斜壁邊緣線不小於1.0mm.5. 最小定位孔徑為1.0mm'斜壁底間距比a大2.0mm.6. 鍵面圓角半徑不小於0.25mm.7. 鍵面頂邊圓角半徑不小於0.2mm.1. Typicaloutsideradiusis1.0to1.5mm.2. Minimumradiusis0.3mm.3. Minimuminsideradiusis0.2mm.4. Spacingbetweentheedgesofarubberdomeandaguideholeis1.0mmormore.5. Guideholesareamin.1.0mmindiam

8、eter.6. Thewidthofarubberdomebaseistypically2.0mmmorethana.7. Theminimumradiusforthesideedgesofkeytopis0.25mm.8. Theminimumradiusforthetopedgesofkeytopis0.2mm.技術(shù)要求（indrawingsheet供參考,任選）a. Actuationforce:130±35gramsb. Tactilefeedbackrequired.5c. Expectedlifecycle:1X10minimumd. Siliconerubberhard

9、ness:5060°e. Contactresistaneelessthan200ohmsf. Stroke=1.0(or1.5)mm.g. Thicknessofcarbonpill=1.0mm.h. Contactbouncelessthan12mseconds.i. Padcolor:optional.Graphicprinting:optional.2. RjbberKey與塑膠殼配合.一般設(shè)計(jì)規(guī)則1一A&B:dimensionsofplastic塑膠殼鍵孔的尺寸a&b:dimensionsrubber矽橡膠鍵鈕的尺寸合理比例為A-a仝0.3mm,B-b>

10、;0.2mm（具體取值見下表）R:thecornerradiusofplastic塑膠鍵孔圓角的半徑r:thecornerradiusofrubber矽橡膠鍵鈕圓角的半徑1mm三R三1.25mm,0.75mm三r三1mmisbetter合理比例為1mm三R三1.25mm,0.75mm三r三1mmH:thedimensionofkeytops&plastic鍵鈕露出膠殼的高度S:thestrokeofkeypad鍵鈕的行程合理比例為H-S仝0.5mmD-d=1.52.0mmispreferred合理比例為D-d=1.52.0mmP:diameterofpost小柱直徑t:thegapbe

11、tweenpost&conductivepill小柱興導(dǎo)電粒頂部之間的的距離.P:1.0mmispreferred標(biāo)準(zhǔn)尺寸1.0mm.t=0.10.15mmispreferred標(biāo)準(zhǔn)尺寸t=0.10.15mmFORCEFc:clickforce接觸點(diǎn)動(dòng)Fc=F1-F2>25gispreferred標(biāo)準(zhǔn)數(shù)據(jù)Fc=F1-F2>25g間隙值推薦選擇表按鍵外形、尺寸、行程大小是影響按鍵設(shè)計(jì)間隙值大小的主要因素，一般情況下，外形簡單，尺寸、行程小，配合間隙取值就小，反之則大。RubberKey與塑膠殼配合間隙值見下表：RubberKey與塑膠殼配合間隙推薦值表（全部爲(wèi)單邊間隙）a.R

12、ubber行程為1.0mm尺寸分類0101020203030404050500.100.120.140.16A0.120.160.18A0.120.160.18多邊形0.250.35異形0.180.22'、.、尺寸分類1101020203030404050500.100.100.120.150.300.100.120.150.100.120.150.180.20多邊形0.180.300.35異形0.150.20尺寸分類0101020203030404050500.100.120.140.16A0.120.160.18A0.120.160.18多邊形0.250.35異形0.180.22c

13、.Rubber行程為2.0mm般尺寸公差b.Rubber行程為1.5mm尺寸分類010102020303040405050©0.100.120.140.160.120.140.160.120.140.16多邊形0.200.30異形0.160.20Length(mm)<1020304050>50Tolerance(mm)±0.1±0.15±0.2±0.25±0.30.6%.彈力範(fàn)圍的一般精度Force(g)507090100120150170200250Tolerance(g)±1520±2025

14、7;2030±2535±2535±3040±3540±50.Rubber與PCB的裝配方式1.RubberKey的裝配方式示意圖1.RubberKey的裝配方式示意圖說明采用拉腳固定a. 拉腳與PCB之間采用過盈配合一般過盈最量取0.3mmb. 拉腳過盈部分高度取2.0mmRubberKey與面殼配合間隙一般取單邊0.20.3mma. 采用柱仔定位，用PCB將Rubberkey壓在膠殼上Rubberkey上定位孔心2mmb. 與柱仔間采用間隙配合，一般取0.5mm;PCB相應(yīng)位置沖孔與定位柱仔間也采用間隙配合，仝0.15mm.3. Rjbber

15、+KeyTop(Button)裝配方式.多粒Rubber的裝配方式a. Rubber與PCB采用拉腳固定或柱仔定位；b. KeyTop的十字形骨壓在Rubber上,預(yù)壓量0.2mm.單粒Rubber裝配方式a. Rubber上開十字型槽，KeyTop上做十字型骨；Rubber與KeyTop配合稍帶過盈，配裝配后不致晃動(dòng)；b. Rubber預(yù)壓量0.2mm。a. 左圖為單粒小Rubber與KeyTop的配合方式；b. KeyTop的Boss上有一小孔；Rubber頂端小圓柱與KeyTop為過盈配合，過溫量：0.1mm,保証小粒Rubber不晃動(dòng)；c. Rubber預(yù)壓量：0.2mm;d. Rub

16、ber與PCB采用拉腳固定。三.RubberKey的選用1. RubberKey在選用時(shí)應(yīng)考慮以下三點(diǎn).RubberKey行程.回彈力.預(yù)壓量（Rubber受壓部位的高度須大于按鍵與PCB之間的距離，以使按鍵常態(tài)時(shí)不致晃動(dòng)，預(yù)壓量一般取0.2mm）。下表為一般選用實(shí)例：應(yīng)用例子Applications行程Stroke(mm)按力ActuationForce(g)耐用力Durability(x103cycles)計(jì)算器Calculators30-80300-1,000音響設(shè)備AudioEquipment60-150100-500汽車音響CarRadios&Stereos60-200100

17、-500電視及錄影機(jī)TV&VTR30-100300-1,000通話器Transmitters80-150300-1,000按鈕電話Push-buttonTelephones70-2001,000-3,000電子遊戲ElectronicGames30-150500-1,000音樂器材MusicalInstruments30-701,000電腦鍵盤ComputerTerminals40-905,000-10,000電動(dòng)打字機(jī)ElectricTypewriters40-705,000-10,000印字機(jī)Printer30-80500-1,000測(cè)量儀器InstrumentMeasuring3

18、0-100100-300搖控器RemoteControl031.550-150300影印/傳真機(jī)Copy/FaxMachine30-150100五.RubberKey附屬設(shè)計(jì)部分1.導(dǎo)電粒一般設(shè)計(jì)規(guī)格ffi-項(xiàng)目Items導(dǎo)電粒的標(biāo)準(zhǔn)尺寸StandardSizes圓形Circle2、2.5、3、3.5、4、4.5、5、5.5、6、7、8方形Square橢圓形Ellipse適宜做絲印導(dǎo)電油墨，尺寸不限制Conductiveinkprintingscontactisrecomended,sizeisflexible導(dǎo)電粒電阻值施加100g力之下，小于150Q壽命30,000,000印刷型電阻值施加

19、300g力之下，小于800Q壽命1X106ConductivePillResistanceLessthan150ohmswith100gramsloadingLoad30millionPrintTypeResistanceLessthan800ohmswith300gramsloading2. 絲網(wǎng)印刷一般概念鍵鈕表面字體或圖形絲印ButtonGraphics鍵鈕表面全色絲印FullSurfacePrinting1fr1/11JA0.5A中心點(diǎn)公差為土0.3mm(GraphicsOffsetcenter±.3mm)耐磨損能力：能抵受RCA糸印壽命測(cè)試儀按照之2018664規(guī)格摩擦15

20、次AbrasionResistance:Allmustpass15cyclesminimumwearonRCAAbrader,2018664perIU4001六.RubberKey性能及測(cè)試1.矽橡膠機(jī)械及電器性能非導(dǎo)電硅Non-ConductiveSilicone導(dǎo)電硅ConductiveSilicone使用溫度TemperatureForUse-50°C+250C-50C+250C單位比重SpecificGravity1.161.18拉力強(qiáng)度TensileStrength280Kg/cm250Kg/cm撕裂強(qiáng)度TearStrength20Kg/cm12Kg/cm壓縮率CompressionSet60%(180CX22hrs.)28%(150CX22hrs.)破壞伸度ElongationAtBreak310%220%電阻率SpecificResistively1X1015Q.cm4Q.cm接觸電阻ContactResistance<100