Cov khoom siv thermal interface feem ntau siv
Thermal Interface Materials, tseem hu ua TIMs, yog ib hom tshwj xeeb ntawm cov ntaub ntawv siv los ua tus choj ntawm ob qhov chaw, tso cai rau cov cua sov dissipation thiab kub sib npaug ntawm ob qhov chaw. Cov ntaub ntawv no zoo tagnrho rau kev siv xws li kev tswj xyuas thermal, xam, thiab kev lag luam hluav taws xob. Cov ntaub ntawv siv thermal interface yog zoo li thermal roj, thermal conductive potting nplaum, thermal ncoo, graphite ntawv, thiab lwm yam:
Thermal roj:
Thermal roj yog tam sim no siv dav siv thermal conductive nruab nrab. Nws yog ib qho ester zoo li cov khoom tsim los ntawm kev siv cov roj silicone ua cov khoom siv raw, ntxiv cov thickeners thiab lwm yam muab tub lim, thiab ua kom sov, txo qis, sib tsoo thiab lwm yam txheej txheem. Cov khoom muaj ib qho viscosity thiab tsis muaj qhov pom tseeb particle. Kev ua haujlwm kub ntawm thermal conductive silicone roj yog feem ntau ntawm -50 degree thiab 220 degree, thiab nws muaj cov thermal conductivity zoo, kub tsis kam, tiv thaiv kev laus, thiab dej tsis zoo.
Thaum lub sij hawm lub tshav kub dissipation txheej txheem, tom qab cua sov mus rau ib tug tej lub xeev, lub thermal conductive silicone roj nthuav tawm ib tug semi kua lub xeev, tag nrho sau qhov sib txawv ntawm CPU thiab lub dab dej kub, ua rau kev sib txuas ntawm ob qho tib si nruj, yog li ntxiv dag zog rau. thermal conduction. Feem ntau, thermal conductive silicone roj yog insoluble hauv dej thiab tsis yooj yim oxidized. Nws kuj muaj qee yam lubrication thiab hluav taws xob rwb thaiv tsev.
Thermal conductive potting nplaum:
Zoo li thermal roj, thermal conductive potting nplaum kuj yog tsim los ntawm kev ntxiv qee yam khoom siv tshuaj rau cov roj silicone thiab ua cov tshuaj ua haujlwm. Tab sis tsis zoo li cov roj thermal, muaj qee yam khoom viscous nyob rau hauv cov khoom siv raw khoom nws ntxiv, yog li cov thermal conductive silicone tiav muaj qee qhov adhesion.
Cov yam ntxwv loj tshaj plaws ntawm tthermal conductive potting nplaum yog nws cov tawv nqaij tawv tom qab solidification, thiab nws cov thermal conductivity tsawg dua li cov roj thermal. Tam sim no, muaj ob hom thermal conductive silicone ntawm lub khw: ib qho yog cov khoom dawb tom qab solidification, thiab lwm yam yog cov khoom dub glossy tom qab solidification. Feem ntau, cov tuam txhab lag luam tau paub siv thawj hom silicone ua cov nplaum ntawm lub dab dej kub thiab cov khoom cua sov. Nws qhov zoo dua yog nws qhov adhesion muaj zog, uas ua rau nws tsis zoo. Thaum peb xav tau kev saib xyuas, peb feem ntau pom muaj ntau cov khoom dawb silicone residue ntawm qhov chaw sib txuas ntawm cov khoom sib txuas thiab cov dab dej kub tom qab kev sib cais, uas yog qhov nyuaj heev kom tshem tawm.
Thermal PAD:
Lub thermal ncoo muaj thermal conductivity zoo thiab high-theem voltage tiv thaiv rwb thaiv tsev, nrog ib tug thermal conductivity coefficient ntawm 2.6W / mK thiab ib tug voltage breakdown tsis kam nqi ntawm ntau tshaj 4000 volts. Nws yog ib qho khoom siv los hloov cov roj thermal. Cov khoom siv nws tus kheej muaj qee qhov kev hloov pauv yooj yim, thiab nws haum zoo ntawm cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob hluav taws xob thiab cov hluav taws xob hluav taws xob los yog cov tshuab plhaub, ua tiav cov hom phiaj thermal conductivity thiab kub dissipation zoo tshaj plaws, ua tau raws li cov kev cai tam sim no ntawm kev lag luam hluav taws xob rau thermal conductive cov ntaub ntawv, Nws yog cov khoom zoo tshaj plaws los hloov binary thermal txias system ntawm thermal roj. Cov khoom lag luam no tuaj yeem txiav txim siab txiav txim siab, uas yog qhov tsim nyog rau kev ua tau raws li qhov yuav tsum tau ua ntawm kev tsim khoom thiab kev saib xyuas cov khoom.
Graphite ntawv:
Cov ntawv graphite yog ua los ntawm cov khoom siv graphite sib xyaw, uas dhau los ua qee yam kev kho tshuaj thiab muaj cov thermal conductivity zoo heev. Nws yog tsim rau cov cua kub dissipation system ntawm hluav taws xob chips, CPUs, thiab lwm yam khoom.
Thermal Interface Materials yog ib feem tseem ceeb ntawm kev lag luam hluav taws xob. Lawv muab cov thermal dissipation zoo tshaj thiab kub sib npaug, tso cai kom muaj kev ua tau zoo hauv ntau yam kev siv. Lawv kuj tau siv los txo qhov loj, qhov hnyav, thiab cov nqi hluav taws xob. Thaum lawv xaiv nyob ntawm daim ntawv thov, txoj cai TIM tuaj yeem muab kev ua tau zoo dua ntawm tus nqi pheej yig.
