Thaum tshav kub kub dissipation tau dhau los ua qhov tseem ceeb hauv kev txiav txim siab cov khoom lag luam thiab kev ua haujlwm ntev nyob rau niaj hnub no qhov nyuaj thiab lub zog ntau dua - cov khoom siv hluav taws xob tshaib plab. engineers thiab ua-nws-koj tus kheej tam sim no nyiam thermally conductive silicone pads dua lwm cov ntaub ntawv kub dissipation vim lawv lub peev xwm ua tau zoo dua thiab cov txiaj ntsig zoo insulating.
A thermally conductive silicone ncooyog ib daim ntawv -zoo li cov khoom siv thermal interface uas muaj cov thermally conductive fillers thiab silicone ua cov khoom siv hauv paus. Nws muaj kev ntxhib los mos thiab siab nto affinity, elasticity, thiab compressibility.
Ib txoj hauv kev los xav txog nws txoj haujlwm yog "kev ua kom zoo thiab txuas ntxiv": Muaj ntau qhov chaw me me, tsis pom kev ntawm cov dab dej kub thiab cov khoom siv hluav taws xob (xws li chips). Thaum tshav kub kub kev thauj mus los yog cuam tshuam los ntawm qhov tsis zoo cua sov conductivity ntawm huab cua hauv cov chaw no. Lub thermally conductive silicone ncoo yog me ntsis compressed nyob rau hauv siab, precisely sau cov chaw no, tso cua, thiab tsim kom muaj ib tug zoo tshav kub conduction channel ntawm lub tshav kub qhov chaw thiab lub tshav kub dab dej.
Cov yam ntxwv tseem ceeb thiab cov txiaj ntsig ntawm silicone pads uas ua kom sov: Ua kom thermal conductivity. Qhov "thermal conductivity coefficient," uas yog nws qhov taw qhia tseem ceeb, ntsuas nws lub peev xwm ua kom sov. Cov thermal conductivity ntawm cov thermally conductive silicone pads yog li ntawm 1.0 W / m·K txog ntau tshaj 10.0 W / m·K, txaus siab rau ntau yam kev xav tau ntawm cov cua sov.
Hluav taws xob rwb thaiv tsev: Los ntawm kev ua tiav kev tshem tawm luv luv thiab lav cov cuab yeej siv kev nyab xeeb, silicone substrate nws tus kheej ua haujlwm zoo li hluav taws xob hluav taws xob zoo.
Softness, Elasticity, thiab Tsis tshua muaj kev sib cuag Thermal Resistance: Txo kev sib cuag thermal kuj zoo heev los ntawm kev sau cov npoo tsis sib xws nrog yooj yim thiab ua tiav kev sib cuag nruj txawm tias tsis tshua muaj siab.
Ntuj Adhesion thiab Usability: Qhov saum npoo yog yooj yim tshem tawm thiab hloov, thiab nws cov nplaum me ntsis ua rau nws yooj yim rau nruab thiab ua haujlwm yam tsis tas yuav muaj cov nplaum ntxiv.
Kev kub siab thiab qis qis thiab huab cua tsis kam: kev ua haujlwm ruaj khov, tiv taus huab cua thiab kev laus, thiab kev ua haujlwm kub ntau (feem ntau -40℃txog 200 degree).
Cushioning thiab Shock Absorption: Tiv thaiv cov khoom sib xws los ntawm kev muab qee theem ntawm kev poob siab.
Qhov twg yog nws indispensable?
LED Teeb pom kev zoo: Thermal conduction ntawm LED chips thiab aluminium substrate / tshav kub dab dej vaj tsev.
Fais fab Modules: Thermal rwb thaiv tsev ntawm lub tsev thiab lub hwj chim MOSFETs, transformers, thiab lwm yam cua sov- ua qhov chaw.
Chip heat dissipation nyob rau hauv lub hauv paus chaw nres tsheb, routers, keyboards, thiab lwm yam khoom siv sib txuas lus.
Automotive electronics nyob rau hauv lub zog tshiab tsheb muaj xws li lub cev muaj zog controllers, roj teeb tswj systems (BMS), thiab nyob rau hauv -board chargers (OBC).
Smart TVs, ntsiav tshuaj, thiab smartphones tag nrho muaj cov cua sov hauv zos.
Kev Tswj Xyuas Kev Lag Luam: Lub tshuab hluav taws xob hluav taws xob ua kom sov hauv cov khoom siv tswj kev lag luam, suav nrog servo motors thiab PLCs.
Yuav Ua Li Cas Xaiv Txoj Cai Thermal Pad?
Xaiv qhov zoo thermal ncoo yuav tsum xav txog cov hauv qab no cov ntsiab lus tseem ceeb:
Qhov taw qhia tseem ceeb tshaj plaws yog thermal conductivity. Siab dua tsis tas yuav zoo dua; kev siv hluav taws xob ntawm cov cua sov thiab qhov xav tau ntawm cov cua kub dissipation yuav tsum sib npaug. Feem ntau, qis- cov xwm txheej fais fab tuaj yeem siv 1.0–3.0 W / m·K, thaum siab - cov xwm txheej fais fab xav tau 5.0 W / m·K lossis ntau dua.
Qhov parameter uas feem ntau yuav raug xaiv tsis raug yog thickness. Lub tswv yim yog tias lub thermal ncoo lub thickness yuav tsum yog me ntsis loj dua los yog sib npaug rau qhov chaw tiag tiag ntawm qhov chaw tshav kub thiab lub dab dej kub. Yog hais tias nws yog tuab heev, nws yuav tsis tau compressed, nce thermal kuj; yog tias nws nyias dhau, nws tsis tuaj yeem sau qhov chaw. Feem ntau thicknesses li ntawm 0.5 mus rau 5.0 hli.
Hardness: Feem ntau qhia nyob rau hauv Shore 00. Lub softer ncoo nrog tsawg hardness yog yooj yim rau compress thiab sau nyob rau hauv me me qhov chaw. Txawm li cas los xij, compression hnyav tuaj yeem ua rau muaj kev puas tsuaj rau lub ncoo mos heev rau qhov sib txawv.
Breakdown Voltage: Yog tias daim ntawv thov xav tau hluav taws xob rwb thaiv tsev, tus yam ntxwv no yuav tsum raug txiav txim siab kom ntseeg tau tias cov cuab yeej ua tau raws li cov txheej txheem rwb thaiv tsev.
Loj thiab Zoo: Cov ntawv muaj rau kev yuav khoom thiab tuaj yeem tuag- txiav, xuas nrig ntaus, lossis tshwj xeeb zoo li qhov xav tau.
Thaum muab cov thermally conductive silicone pads, yuav tsum ua raws li kev ntsuas kev nyab xeeb?
Xyuas kom tseeb tias qhov chaw yog huv si ntawm plua plav thiab roj los ntawm kev ntxuav nws.
Yog tias tsim nyog, tshem tawm cov yeeb yaj kiab tiv thaiv ua ntej ua tib zoo txuas thiab ua kom lub ncoo.
Txhawm rau lav kom tiav kev sib cuag ntawm lub ncoo thiab qhov chaw, siv qhov tsim nyog ntawm lub siab.
Txhawm rau kom tsis txhob ripping, tsis txhob khoov lossis ncab ntau dhau.
Raws li kev siv tau zoo, muaj kev ntseeg siab, thiab cov neeg siv khoom - cov khoom siv thermal interface zoo, qhov kub thiab txias - ua cov ntaub qhwv silicone yog qhov tseem ceeb rau kev lag luam hluav taws xob tam sim no. Ua kom tiav qhov zoo tshaj plaws tshav kub dissipation tsim yuav tsum muaj kev nkag siab zoo thiab ceev faj xaiv ntawm yam, xws li thermal conductivity, thickness, thiab hardness.
