Kev sib piv ntawm 5 radiators ntawm sab hauv LED teeb pom kev zoo fixtures
Tam sim no, qhov teeb meem loj tshaj plaws ntawm LED teeb pom kev zoo yog cov cua sov dissipation. Tsis zoo cua sov dissipation tau ua rau LED tsav tsheb cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob electrolytic uas tau dhau los ua qhov tsis txaus nyob rau hauv kev txhim kho ntxiv ntawm LED teeb pom kev zoo, thiab ua rau muaj kev puas tsuaj ntxov ntawm LED teeb pom kev zoo.
Nyob rau hauv lub luminaire tov siv LV LED lub teeb qhov chaw, vim hais tias cov LED teeb qhov chaw ua hauj lwm nyob rau hauv ib tug tsawg voltage (VF=3.2V), siab tam sim no (IF=300 ~ 700mA) ua hauj lwm lub xeev, nws generates cua sov ntau, thiab cov tsoos luminaire. muaj qhov chaw me me thiab thaj chaw me me. Nws yog ib qho nyuaj rau lub radiator kom dissipate tshav kub sai. Txawm hais tias muaj ntau yam ntawm cov cua kub dissipation schemes tau txais yuav, cov txiaj ntsig tsis txaus siab thiab dhau los ua qhov teeb meem tsis tuaj yeem daws teeb meem rau LED teeb pom kev zoo. Peb ib txwm nrhiav cov khoom siv uas yooj yim siv, muaj cov thermal conductivity zoo, thiab cov khoom siv hluav taws xob qis qis.
Tam sim no, tom qab lub teeb pom kev zoo ntawm LED, txog 30% ntawm cov hluav taws xob hluav taws xob tau hloov mus rau lub teeb lub zog, thiab qhov seem yog hloov mus rau hauv lub zog hluav taws xob. Yog li ntawd, kom xa tawm ntau lub zog cua sov kom sai li sai tau yog lub tshuab tseem ceeb hauv kev tsim qauv ntawm LED teeb. Thaum tshav kub kub lub zog yuav tsum tau dissipated los ntawm tshav kub conduction, tshav kub convection, thiab tshav kub tawg. Tsuas yog los ntawm cov cua sov kom sai li sai tau tuaj yeem ua kom cov kab noj hniav kub hauv LED teeb kom txo tau zoo, thiab cov khoom siv hluav taws xob tuaj yeem tiv thaiv kev ua haujlwm nyob rau hauv qhov kub thiab txias ib puag ncig, thiab kev laus ntxov ntxov ntawm lub teeb ci LED vim ntev. -lub sij hawm kub kub ua haujlwm yuav zam tau.
Txoj kev tshav kub dissipation ntawm LED teeb pom kev zoo
Vim tias lub teeb ci LED nws tus kheej tsis muaj infrared lossis ultraviolet rays, LED lub teeb qhov chaw nws tus kheej tsis muaj hluav taws xob kub dissipation muaj nuj nqi. Txoj kev tshav kub dissipation ntawm LED teeb pom kev zoo tuaj yeem tsuas yog rho tawm cov cua sov los ntawm lub radiator ze ze nrog LED teeb hlaws phaj. Lub tshuab hluav taws xob yuav tsum muaj kev ua haujlwm ntawm cov khoom siv hluav taws xob, cov cua sov convection, thiab hluav taws xob hluav taws xob.
Txhua lub tshuab hluav taws xob, ntxiv rau qhov muaj peev xwm ua kom muaj cua sov sai sai los ntawm qhov chaw tshav kub mus rau saum npoo ntawm lub tshuab hluav taws xob, qhov tseem ceeb yog dissipate cua sov rau hauv huab cua los ntawm convection thiab hluav taws xob. Thaum tshav kub kub conduction tsuas yog daws tau txoj kev hloov hluav taws xob, thiab thermal convection yog lub luag haujlwm tseem ceeb ntawm lub tshuab hluav taws xob. Lub tshav kub dissipation kev ua tau zoo yog txiav txim siab los ntawm qhov chaw tshav kub dissipation, cov duab, thiab lub peev xwm ntawm natural convection siv. Thermal hluav taws xob tsuas yog ib qho kev pabcuam. Feem ntau hais lus, yog tias qhov kev ncua deb ntawm qhov chaw tshav kub mus rau saum npoo ntawm lub tshuab hluav taws xob tsawg dua 5 hli, tsuav yog qhov thermal conductivity ntawm cov khoom muaj ntau dua 5, cov cua sov tuaj yeem raug xa tawm, thiab qhov seem ntawm cov cua sov yuav tsum yog. dominated los ntawm thermal convection.
Feem ntau ntawm LED teeb pom kev zoo tseem siv hluav taws xob tsawg (VF=3.2V) thiab siab tam sim no (IF=200 ~ 700mA) LED teeb hlaws. Vim muaj cua sov siab thaum lub sijhawm ua haujlwm, aluminium alloy nrog thermal conductivity ntau dua yuav tsum tau siv. Feem ntau muaj cov tuag-cast aluminium radiators, extruded aluminium radiators, thiab stamped aluminium radiators. Tuag-casting aluminium radiator yog cov cuab yeej siv siab casting qhov chaw. Cov kua zinc, tooj liab, thiab aluminium alloy yog poured rau hauv lub inlet ntawm lub tshuab tuag-casting, thiab lub tshuab tuag-casting yog tuag-casted rau cam khwb cia radiator nrog ib tug zoo li txwv los ntawm ib tug pre-tsim pwm.
Tuag-cast aluminium radiator
Tus nqi tsim khoom yog tswj tau, thiab lub tshav kub dissipation tis tsis tuaj yeem ua nyias, thiab nws yog ib qho nyuaj rau kev loj hlob ntawm tshav kub dissipation cheeb tsam. Cov khoom siv feem ntau siv tuag-casting rau LED teeb radiators yog ADC10 thiab ADC12. Extruded aluminium radiator
Cov kua txhuas yog extruded los ntawm ib tug taag tuag, thiab tom qab ntawd lub bar yog machined thiab txiav mus rau hauv tus tsim nyog cov duab ntawm lub radiator. Tus nqi ua tom qab yog tus nqi siab. Radiating tis tuaj yeem ua tau ntau thiab nyias, thiab qhov chaw tshav kub dissipation yog nthuav mus rau qhov siab tshaj plaws. Thaum lub tis radiating ua haujlwm, cua convection tau tsim los ua kom muaj cua sov, thiab cov cua sov dissipation zoo dua. Cov khoom siv feem ntau yog AL6061 thiab AL6063.
Stamped aluminium radiator
yog siv cov punches thiab tuag los nias thiab rub cov hlau thiab aluminium alloy daim hlau los tsim lub khob-shaped radiator. Sab hauv thiab sab nraud ntawm lub tshuab hluav taws xob punched yog du, thiab qhov chaw tshav kub dissipation raug txwv vim tsis muaj tis. Feem ntau siv cov khoom siv aluminium alloy yog 5052, 6061, thiab 6063. Qhov zoo ntawm stamping qhov chaw yog me me thiab cov khoom siv ntawm cov khoom siv yog siab, uas yog cov nqi qis.
Lub tshav kub conduction ntawm aluminium alloy radiator yog qhov zoo tagnrho, thiab nws yog qhov tsim nyog rau kev sib cais hloov qhov hluav taws xob tas li tam sim no. Rau cov khoom siv hluav taws xob tsis raug rho tawm tam sim no, nws yog ib qho tsim nyog yuav tsum cais cov khoom siv hluav taws xob AC thiab DC, high-voltage thiab low-voltage fais fab mov los ntawm cov qauv tsim ntawm lub teeb kom dhau CE lossis UL ntawv pov thawj.
