Kev sib raug zoo ntawm kev ua haujlwm kub thiab kub nce ntawm LED teeb thiab lub teeb lwj thiab lub neej

Kev sib raug zoo ntawm kev ua haujlwm kub thiab kub nce ntawm LED teeb thiab lub teeb lwj thiab lub neej
Kev khiav hauj lwm kub ntawm LED teeb yog dab tsi?

Qhov ntsuas kub nyob rau hauv uas LED teeb tuaj yeem ua haujlwm ib txwm yog qhov ua haujlwm kub ntawm LED teeb. Feem ntau, LED teeb yog tsim los ntawm {{0}} degree --40 degree , uas tuaj yeem ua tau raws li qhov yuav tsum tau muaj ntawm ntau thaj tsam hauv kuv lub tebchaws. Piv txwv li, qhov kub ntawm lub caij ntuj no hauv Heilongjiang hauv Northeast Tuam Tshoj tuaj yeem ncav cuag -40 degree , thiab qhov kub ntawm lub teeb yuav tsum tau tsim los ntawm -40 degree -40 degree kom tau raws li kev siv, thaum lub caij ntuj sov nyob rau hauv cheeb tsam equatorial yuav ncav cuag 50 degree los yog siab dua. Nws yuav tsum muaj peev xwm ua haujlwm ib txwm nyob hauv qhov chaw ua haujlwm ntawm 0 degree -50 degree .

Kev khiav hauj lwm kub sib txawv, LED cov txheej txheem cov khoom yuav tsum, thiab cov khoom xaiv tsis zoo ib yam. Nyob rau hauv cov cheeb tsam uas tsis tshua muaj txias, cov khoom yuav tsum xaiv cov khoom siv hluav taws xob uas tsis muaj qhov kub thiab txias, thiab nyob rau hauv qhov kub thiab txias, cov khoom yuav tsum xaiv cov khoom siv hluav taws xob kub resistant. Qhov kub thiab txias sib txawv Cov txheej txheem tsim khoom thiab kev laus ntawm cov teeb ci LED ua haujlwm nyob rau hauv cov cheeb tsam sib txawv yog txawv. Qhov no tseem ceeb tshwj xeeb tshaj yog rau cov kws tshaj lij uas muaj kev paub tsim qauv me me.

Qhov kub nce yog dab tsi?

Qhov kub tso cai kom nce siab thaum lub teeb ua haujlwm kuj yog ib txoj hauv kev los ntsuas lub peev xwm ntawm cov cua sov ntawm lub tshuab hluav taws xob, thiab nws kuj yog ib qho teeb meem uas peb xav kom tsom mus rau.

Peb paub tias cov roj teeb hluav taws xob thiab cov roj teeb tawm (xws li cov teeb fluorescent, lub teeb hluav taws xob siab siab sodium, thiab hlau halide teeb) feem ntau tsis tas yuav tsum tau tshwj xeeb cua sov dab dej kom dissipate cua sov, tab sis tsuas yog LED teeb lub xeev teeb pom kev zoo yuav tsum tau tshwj xeeb cua sov dab dej kom dissipate cua sov. . Ib yam tshwj xeeb txog teeb pom kev zoo.

LED semiconductor teeb pom kev zoo nti tawm lub teeb thaum nws ua haujlwm, thiab nws lub teeb tsis muaj ultraviolet rays thiab infrared rays, yog li nws lub teeb tsis tuaj yeem tshem tawm cov cua sov; yog li ntawd, qhov kub ntawm lub nti yuav nce thaum nws ua haujlwm. Txhawm rau kom ntseeg tau tias qhov kub ntawm lub nti tsis nce siab dhau thaum lub nti ua haujlwm, nws yuav tsum tau ntxiv lub dab dej kub rau LED.

Lub teeb lwj ntawm LED muaj feem xyuam rau nws qhov kub thiab txias. Qhov hu ua hlws ris kub yog qhov kub ntawm lub semiconductor PN hlws ris. Qhov siab dua qhov sib txuas kub, qhov ua ntej lub teeb lwj yuav tshwm sim, uas yog, lub neej luv dua.

Yog tias qhov ntsuas kub ntawm qhov sib txuas yog 105 degrees, lub neej tsuas yog ntau tshaj 10,000 teev thaum lub teeb ci poob rau 70 feem pua, 20,{5}} teev ntawm 95 degrees, thiab 50,000 Cov sij hawm thaum qhov kub ntawm qhov sib txuas txo mus rau 75 degrees, thiab tuaj yeem txuas mus rau 65 degrees. 90,{12}} teev. Yog li tus yuam sij rau kev ncua lub neej yog kom txo qhov kub ntawm qhov sib txuas.

Cov chips LED sib txawv muaj qhov sib txawv ntawm lub teeb tawg, thiab cov thermal kuj thiab kub dissipation kuj txawv heev.

Raws li peb qhov kev tshawb nrhiav thiab kev tshuaj xyuas, peb tuaj yeem txiav txim siab ua ntej raws li qib ntawm lub teeb: qhov kub thiab txias ntawm high-end LED teeb yog tsawg dua lossis sib npaug li 15 degree, qhov kub ntawm qhov nruab nrab ntawm cov teeb ci LED yog tsawg dua lossis sib npaug li 25 degree, thiab qhov kub ntawm qhov qis kawg LED teeb Tsawg dua lossis sib npaug li 35 degree.

Qhov kub ntawm lub radiator ntawm lub teeb LED=qhov kub thiab txias ntawm qhov kub thiab txias ntawm lub teeb.

Piv txwv li: ib tug high-end LED teeb phau ntawv muab nws kub nce li tsawg dua los yog sib npaug zos rau 15 degree, thaum lub ambient kub yog 37 degree, qhov kub ntawm aluminium alloy radiator ntawm lub LED teeb yog dab tsi? Lub neej ntawm lub teeb tuaj yeem ncav cuag pes tsawg teev?

Ambient kub 37 degree ntxiv radiator kub nce 15 degree=teeb radiator kub 52 degree

Uas yog hais tias, thaum lub ambient kub yog 37 degree, qhov kub ntawm lub LED aluminium radiator yuav tsum tsawg tshaj li los yog sib npaug zos rau 52 degree, txwv tsis pub lub teeb yuav tsis tau raws li lub Hoobkas yuav tsum tau.

Lub neej ntawm lub teeb no pes tsawg teev? Lub neej ntawm lub teeb muaj kev sib raug zoo nrog kev sib tshuam kub ntawm cov nti. Yuav kom paub qhov sib txuas qhov kub thiab txias, koj yuav tsum paub qhov kev ua haujlwm thermal ntawm lub nti mus rau lub tshuab hluav taws xob. Feem ntau, muaj plaub qhov thermal resistances los ntawm nti mus rau aluminium radiator. Yog tias nws yog tib yam li cov thermal kuj ntawm cov nti, nws yog 4 degree / W, ces qhov sib npaug ntawm 4 thermal resistances yog 16 degree / W, thiab qhov kub ntawm cov nti yog 52 degree ntxiv rau 16 degree {{5. }} degree. Ze li 90, 000 teev ntawm lub neej.

Ib yam li ntawd, lub neej ntev ntawm lub teeb nruab nrab yog kwv yees li 50, 000 teev, thaum lub neej ntawm cov roj teeb qis kawg yog li 25, 000 teev.

Yog li ntawd, qhov kub nce ntawm lub radiator yog qhov taw qhia tseem ceeb heev. Tam sim no, tsis muaj cov chaw tsim khoom hauv tsev uas tau cim qhov ntsuas kub ntawm lub tshuab hluav taws xob hauv phau ntawv qhia, tab sis tsuas yog qhov ntsuas kub ua haujlwm. Dab tsi yog qhov kub thiab txias, nws tsis tuaj yeem xam lub neej ntawm LED teeb.

Yog lawm, yog tias qhov kub thiab txias heev, nws yuav cuam tshuam rau lub neej ntawm lub teeb, thiab tib lub sijhawm, nws yuav ua rau muaj kev hem thawj rau tus kheej kev nyab xeeb, thiab muaj kev phom sij ntawm scalding ntawm daim tawv nqaij. Cov neeg siv khoom xav yuav cov teeb pom kev zoo, lub neej ntev, tsis ua haujlwm tsawg, thiab kav ntev. Raws li cov chaw tsim khoom, lawv cia siab tias yuav txo cov nqi thiab ua kom cov txiaj ntsig zoo tshaj plaws. Lawv cia siab tias lub neej ntawm lub teeb yuav tsis ntev dhau, thiab cov neeg siv yuav hloov kho sai sai ua ntej yuav khoom. Qhov no yog qhov kev tsis sib haum xeeb ntawm cov neeg siv khoom thiab cov neeg tsim khoom.

Los ntawm cov lus piav qhia saum toj no, peb tuaj yeem pom qhov tseem ceeb ntawm qhov kub thiab txias. LED teeb yuav tsum tau xav txog tag nrho cov teeb pom kev zoo ntawm LED hluav taws xob los ntawm cov nti thiab cov qauv tsim. Nyob rau tib lub sijhawm, peb xav kom cov neeg siv khoom nkag siab txog qhov kub thiab txias ntawm cov teeb thaum yuav cov teeb ci LED. Ua ntej kev yuav khoom, sim ntsuas qhov ntsuas kub ntawm LED teeb raws li tus qauv siv rau kev xaiv LED teeb.