Ultra nyias vapor chamber txias tshuab rau high-power hluav taws xob cua txias
Txoj kev loj hlob ntawm cov cuab yeej siv hluav taws xob tau txhawb nqa qhov miniaturization thiab kev ua haujlwm siab ntawm cov khoom siv hluav taws xob, tab sis tau ua rau muaj kev nce hauv cov hluav taws xob hluav taws xob los ntawm cov chips hluav taws xob, thiab cov kev sib tw thermal tswj ntawm cov khoom siv hluav taws xob muaj zog tau maj mam nce ntxiv. Vapor Chamber (VC) yog dav siv los ua cov khoom cua kub hauv cov khoom siv hluav taws xob xws li smartphones, laptops, thiab kev sib txuas lus. Nws siv lub latent cua sov ntawm vaporization ntawm cov kua ua hauj lwm kom tshem tawm ib tug loj npaum li cas ntawm tshav kub, thaum lub capillary tsav quab yuam ntawm lub internal capillary qauv xyuas kom meej cov kev khiav hauj lwm cov kua. Raws li ob-theem cua sov dissipation ntaus ntawv, VC yeej ib txwm tau lug kawm nyob rau hauv kev tshawb fawb thiab kev ua lag luam.
Lub ultra-thin vapor chamber (UTVC) muaj cov evaporator phaj, condenser phaj, thiab capillary core, nrog ib tug tuab ntawm 0.5 hli. Cov tub ntxhais capillary muaj cov duab zoo ib yam li paj noob hlis, nrog lub thickness ntawm 1 hli, thiab yog tsim los ntawm cov tub ntxhais sab hauv thiab cov tub ntxhais sab nraud. Lub hauv paus tseem ceeb yog ua los ntawm tooj liab mesh nrog ib txoj kab uas hla ntawm 35mm thiab 300 mesh, uas muaj 18 gas ntws thiab kua reflux channel, nrog rau cov tub ntxhais capillary nrog ib txoj kab uas hla ntawm 15mm. Cov tub ntxhais sab nraud yog hais txog cov tub ntxhais sab hauv thiab yog ua los ntawm cov tub ntxhais uas muaj cov kab capillary nrog rau sab nraud ntawm 70mm. Cov duab ntawm cov qauv capillary yog ua tiav los ntawm cov hlau txiav thiab laser txiav cov txheej txheem.
Radial gradient txheej txheej capillary tub ntxhais muaj lub caij nyoog kab noj hniav raws li cov roj ntws tawm channel, capillary channel raws li cov channel rau cov kua reflux, lub hauv paus tseem ceeb ntawm cov nplua tooj liab mesh tuaj yeem muab capillary quab yuam rau cov kua reflux, thiab cov tub ntxhais sab nrauv ntawm cov ntxhib. tooj liab mesh tuaj yeem txo cov kua reflux tsis kam thiab txhim kho permeability. Cov cores sab hauv thiab sab nrauv ntawm radial gradient txheej txheej capillary cores raug txiav thiab sintered rau ntawm evaporator phaj. Cov evaporator thiab condenser daim hlau yog diffusion welded los txuas cov tub ntxhais capillary rau lub condenser, thaum tseem txhawb cov kab noj hniav. Kev siv vuam ntau zaus yog siv los txuas cov raj txhaj tshuaj, thiab thaum kawg, los ntawm cov txheej txheem txo qis, lub tshuab nqus tsev twj thiab cov kua tshuaj yog nqa tawm. Tag nrho cov txheej txheem yog twb paub tab heev nyob rau hauv cov txheej txheem ntawm kev txhawb nqa cov yeeb nkab cua sov.
Kev sib piv ntawm thermal kev ua tau zoo ntawm UTVC thiab tooj liab daim hlau ntawm tib lub geometric loj tau ua, piav qhia txog kev hloov pauv hauv qhov kub thiab txias thiab thermal tsis kam nyob rau hauv kev siv hluav taws xob sib txawv. Piv nrog rau cov phaj tooj liab, UTVC muaj qhov ua tau zoo ntawm kev hloov hluav taws xob ntau dua thiab qhov sib txawv ntawm qhov kub thiab txias dua nyob rau hauv qhov ntsuas hluav taws xob siv ntau yam, tshwj xeeb tshaj yog nyob rau hauv kev siv hluav taws xob siab. Qmax ntawm UTVC yog 420W (187.6W / cm2), qhov tsawg kawg nkaus thermal kuj yog 0.0531 degree /W (360W), thiab thermal kuj yog txo los ntawm 59.2%. Ntau dav siv nyob rau hauv lub tshav pob ntawm high-power hluav taws xob cua txias.
