Hais txog LED, Kuv xav tias ntau tus phooj ywg xav txog LED tshav kub, tshwj xeeb tshaj yog high-power LED. Yog tias kev kho tsis sov, ua rau lub teeb ci ntsa iab thiab lub neej yuav poob sai sai, rau qhov LED, yuav ua li cas thiaj muaj kev cia siab rau thiab kev siv hluav taws xob, yog qhov tseem ceeb heev. Li ntawd, peb nyob rau hauv cov qauv ntawm LED khoom yuav tsum tau muab rau hauv tus account thaum lub tshav kub kho. LED tshav kub kho qhov kev pab cuam ntau heev, tsuas yog los ntawm cov qauv thiab kev ua tau zoo ntawm ob qho kev txhim kho, peb nyob ntawm no siv cov kev pabcuam siv hluav taws xob (heat) coj los siv kho raws li nram no:
Thawj: low-power epoxy resin cua txias txoj kev:
Cov tshuaj uas tsis muaj lub hwjchim kub lub cev pabcuam yog nyob hauv lub hnab nrog cov tshuaj tsawg tsawg ntawm epoxy, qhov no yog qhov yooj yim, peb tsis paub meej ntawm no. Feem ntau hauv lub ntim thaum xaiv tus zoo epoxy resin ntawm kab.
Thib ob: qhov yooj yim hlau substrate (txhuas phaj)
Epoxy resin tshav kub kuj tsis zoo, tej zaum qhov teeb meem yog tias lub neej ntawm cov roj chip nws tus kheej tsis tau mus txog ua ntej cov epoxy reol tau raug rho tawm, yog li ntawd, kom cov cua sov dissipation yog qhov tseem ceeb tseem ceeb. Tsis tas li xwb, tsis yog vim tias cov tshav kub kub yuav hloov cov epoxy replicis, thiab cov luv luv wavelengths tseem yuav ua rau muaj teeb meem rau epoxy reindex, uas yog vim cov teeb liab dawb teeb pom kev dawb, kuj muaj lub teeb ntus luv luv, hos cov epoxy cob yog dawb lub teeb nyob rau hauv LED luv-wavelength lub teeb puas raug, txawm low-power LED, tau epoxy cob
Kev rhuav tshem ntawm qhov tshwm sim muaj zog, tsis hais qhov siab-muaj hwjchim dawb coj los ntawm lub sijhawm luv luv ntawm lub teeb, qhov phem dua li qhov qis dua tus qauv qis dua, thiab txawm tias qee yam khoom nyob rau hauv lub nrig lit tom qab kev pabcuam ntawm tsuas yog 5,000 teev , los yog txawm tias luv Qhov Vim li no, nrog nws tas li kom dhau cov txheej txheem ntim qub, "Epoxy" coj cov teeb meem xim, nws yog qhov zoo dua los nrhiav ib tiam tshiab ntawm kev ntim khoom ntawv.
Li ntawd, nyob rau xyoo tsis ntev los no maj mam hloov mus rau cov thermal conductivity ceramic, lossis hlau pob qauv pob, los daws cov cua sov, thiab ntxiv dag zog rau cov yam ntxwv ntawm kev siv zog. LED chip high-power ntau txoj kev siv yog: loj teev nti los txhim kho cov luminous efficiency, siv cov teeb pom kev zoo ntawm lub pob, thiab loj tam sim no. Hom kev xyaum no txawm tias qhov nyiaj tam sim no yuav nce qhov kev faib ua feem ntawm luminous, tab sis lub tshav kub tuaj.
Rau siab-zog LED ntim tshuab, vim muaj teeb meem kub ntawm lub teeb meem ntawm qhov teeb meem ntawm cov teeb meem, hauv cov ntsiab lus no nrog tus nqi hluav taws xob zoo hlau cov tshuab substrate, tau los ua cov teebmeem loj tom qab lwm qhov kev txhawj xeeb txog Kev Tsim Kho tshiab ntawm yav dhau los vim hais tias LED tso zis fais fab yog me me, yog li siv cov tshuaj FR4 iav epoxy ntim substrate, thiab yuav tsis ua teeb meem ntau dhau los, tab sis siv nyob rau hauv teeb pom kev zoo nrog lub hwj chim LED, qhov luminous efficiency txog 20% mus rau 30%, Txawm hais tias tus thaj chaw yog heev me me, tag nrho cov neeg siv hluav taws xob tsis yog siab, tab sis chav tsev ntawm kub yog loj heev. Feem ntau, cov tshuaj ntxhib substrate txias, tsuas tuaj yeem txhawb 0.5W hauv qab ntawm LED, ntau dua 0.5W los yog ntau dua, thiab siv ntau cov hluav taws xob kub thoob rau txheej txheem, qhov tseem ceeb yog vim tias cov hluav taws kub substrate heat directly ncaj qha rau lub neej LED thiab kev ua tau zoo, Vim li ntawd lub ntim cov khoom ntim tau ua kom pom tseeb ntawm kev loj hlob ntawm cov khoom ci ci ntsa iab.
Nyob rau ntawm lub sam thiaj ntim cov thawv ntim khoom, lub teeb tam sim no yuav tsum tau muab faib ua ke, LED nti rau lub pob ntawm cov khoom siv hluav taws xob, thiab lub pob mus rau sab nraud kom sov tau ob sab loj. Thaum siv cov khoom siv hluav taws xob kub siab, qhov txawv ntawm qhov kub hauv lub pob yuav ua me dua, tom qab ntawd lub tshav kub yuav tsis nyob qhov chaw, LED nti raws li tag nrho tshav kub, khiav radial rau sab hauv lub pob, yog li siv cov thermal conductivity khoom, Thermal diffusibility. Yog hais tias hloov cov cua sov hloov, nws yuav luag tag nrho ntawm cov khoom nqa los daws qhov teeb meem. Cov neeg feem coob ntseeg hais tias, nrog cov roj ntsa teeb uas loj, siab zog, muaj zog loj hlob, yuav ua rau cov hlau ntim hloov cov khoom ntim tshuaj. Nyob rau tam sim no cov hluav taws kub kub cua sov dissipation substrate khoom, yuav muab faib ua ob hom nyuaj thiab yooj yooj yim substrate, tus qauv, nyuaj substrate yog cov khoom siv hlau, cov hlau LED ntim substrate aluminium thiab tooj liab cov ntaub ntawv, rwb thaiv tshooj, feem ntau mining Ntim nrog kev thermal conductivity, muaj thermal conducters, ua thermal conductivity, ua, electromagnetic shielding, thermal poob hauj lwm thiab lwm cov khoom muaj hlau, lub thickness yog feem ntau dua 1 hli, feem ntau uas yog lug siv LED teeb pom kev zoo, thiab teeb pom kev zoo, tib yam nrog cov txhuas lub zog uas muaj cov thermal conductivity, kev kub kub, kev muaj peev xwm ua hauj lwm raws li high-power LED ntim khoom.
Khoom kub : 1 50W LED Txoj Kev Teeb , Vaj Huam Sib Teeb sab nraum zoov , LED Profile teeb , kab teeb pom kev ncaj
