Peb lub ntsiab tseem ceeb ntawm LED teeb hlaws tau cuam tshuam qhov zoo ntawm LED teeb

Peb yam tseem ceeb ntawm LED teeb hlaws dai tau cuam tshuam rau qhov zoo ntawm LED teeb. Cia peb saib cov ntsiab lus tseem ceeb ua ke: cov ntaub ntawv tshawb pom los ntawm ib lub teeb ci LED hlaws ntawm lub rooj tsav xwm kev laus, thiab sib sau ua ke ntawm LED teeb hlaws rau hauv ib qho raws li cov ntaub ntawv tshawb pom thaum lub teeb muaj kev laus, nws yuav tsum sib txawv me ntsis. . Qhov loj ntawm qhov sib txawv no nyob ntawm qhov ntsuas hluav taws xob thiab qhov tsim ntawm lub teeb thaum lub sijhawm ua haujlwm LED, nrog rau ib puag ncig siv los ntawm lub teeb. 1. Qhov zoo ntawm LED teeb hlaws rau LED teeb hlaws yog qhov tseem ceeb. Piv txwv li, tib yam yog sawv cev los ntawm cov nti ntawm cov nti ntawm cov nti 14mil, thiab LED teeb hlaws dai ntawm cov pos hniav hauv qab thiab cov kua nplaum dawb thiab cov kua nplaum ua los ntawm cov epoxy resin zoo tib yam, uas ci ib qho ib puag ncig ntawm 30. qib. Tom qab ntau txhiab teev, cov ntaub ntawv attenuated yog 70% ntawm qhov muag pom; Yog tias D hom D qis-decaying kua nplaum yog encapsulated, nyob rau hauv tib lub aging ib puag ncig, lub 1,000-teev lub teeb lwj yog 45%; , 1,000-teev lub teeb lwj yog 12%; yog tias qeb B yog encapsulated nyob rau hauv cov kua nplaum uas tsis tshua muaj, nyob rau hauv tib lub aging ib puag ncig, phav phav teev ntawm lub teeb lwj ntawm -3%; Yog hais tias chav kawm A yog cov kua nplaum qis qis, nyob rau tib qhov chaw laus, ntau txhiab teev ntawm lub teeb nyob rau hauv tib qhov kev laus, ntau txhiab teev ntawm lub teeb nyob rau hauv tib qhov chaw laus, ntau txhiab teev ntawm lub teeb nyob rau hauv tib qhov chaw laus, ntau txhiab teev. teev ntawm lub teeb nyob rau hauv tib lub aging ib puag ncig, ntau txhiab teev ntawm lub teeb rau ntau txhiab teev ntawm lub teeb. Qhov txawv ntawm qhov lwj ntawm -6%. Vim li cas cov txheej txheem ntim khoom sib txawv ua rau muaj qhov sib txawv loj? Ib qho ntawm cov laj thawj tseem ceeb tshaj plaws yog tias LED nti ntshai tshav kub. Qee zaus cua sov ntau tshaj li ib puas degrees hauv lub sijhawm luv luv, thiab qhov cuam tshuam tsis zoo. Kuv ntshai tias nws yuav kub hnyiab tau ntev. Nws yog kev puas tsuaj loj rau LED nti. Feem ntau hais lus, thermal conductivity ntawm epoxy resins zoo tib yam yog me me. Yog li ntawd, thaum LED chips yog teeb, LED chips yuav tsum emit kub, thiab zoo tib yam epoxy resin thermal conductivity yog txwv. Thaum qhov kub ntawm LED bracket yog 45 degrees, qhov kub ntawm qhov chaw nti hauv lub teeb ci LED hlaws yuav dhau 80 degrees. Qhov kub ntawm lub LED yog tiag tiag 80 degrees, yog li thaum LED nti ua haujlwm ntawm qhov kub thiab txias, nws raug kev txom nyem heev, uas ua rau cov laus ntawm cov teeb pom kev zoo ntawm LED. Thaum LED nti ua haujlwm, qhov nruab nrab qhov kub thiab txias ua rau kub siab ntawm 100 degrees. Nws tuaj yeem siv tam sim ntawd tus pin sawv rau lub tshav kub kom txo tau cov cua sov, yog li txo qhov kev puas tsuaj rau nws. Yog li ntawd, thaum qhov kub ntawm LED teeb hlaws dai yog 60 degrees, qhov kub ntawm nws qhov chaw nti yuav tsuas yog 61 degrees. Raws li tuaj yeem pom los ntawm cov ntaub ntawv saum toj no, LED teeb hlaws hlaws uas xaiv cov txheej txheem ntim dab tsi yog xaiv, thiab kev txiav txim siab lub teeb ntawm LED teeb ncaj qha txiav txim siab lub teeb kev txiav txim siab ntawm LED teeb. 2. Ib puag ncig thiab kub ntawm LED lub teeb qhov chaw ua haujlwm Raws li cov ntaub ntawv ntawm ib lub teeb ci LED, yog tias lub teeb ci LED tsuas muaj ib qho teeb pom kev ua haujlwm, tib lub sijhawm, qhov kub ntawm ib puag ncig nws nyob yog 30 degrees, tom qab ntawd ib leeg LED Lub teeb qhov chaw ua haujlwm yog ua haujlwm Qhov kub ntawm lub txee yuav tsis tshaj 45 degrees. Lub sijhawm no, lub neej ntawm LED no yuav zoo tagnrho. Yog hais tias muaj 100 LED teeb qhov chaw ntawm kev ua hauj lwm tib lub sij hawm, lub ncua sij hawm ntawm lawv tsuas yog 11.4 hli, ces lub bracket kub ntawm LED teeb qhov chaw nyob ib ncig ntawm lub teeb pawg yuav tsis pub tshaj 45 degrees, tab sis cov LEDs nyob rau hauv nruab nrab ntawm. lub teeb pawg yuav tsis Lub teeb qhov chaw yuav ncav cuag 65 degrees kub. Lub sijhawm no, lub teeb ci LED yog qhov kev sim. Tom qab ntawd, cov teeb pom kev zoo ntawm LED uas tau sib sau ua ke hauv nruab nrab yuav theoretically sai dua, thiab LED teeb qhov chaw nyob ib ncig ntawm lub teeb pawg yuav qeeb dua. Tab sis yog tias LED teeb hlaws hlaws ntau tshaj 25 hli sib nrug, ces cov calories lawv hloov mus yuav tsis sib sau ntau heev. Nyob rau lub sijhawm no, qhov kub ntawm txhua LED teeb hlaws yuav tsum tsawg dua 50 degrees, uas yog qhov zoo dua rau kev ua haujlwm ntawm LED. Yog tias ib puag ncig ntawm LED ua haujlwm nyob rau hauv qhov chaw txias, qhov nruab nrab kub ntawm tag nrho lub xyoo yuav tsuas yog li 15 degrees lossis me dua, ces rau LED, lub neej ntev dua. Los yog, thaum LED ua haujlwm, muaj lub kiv cua me me ntawm nws thiab pab kom tshem tawm cov cua sov. Qhov no tseem yuav pab tau lub neej ntawm LED. Txhua tus neeg yuav tsum paub tias LED teeb hlaws dai ntshai ntawm tshav kub. Qhov kub thiab txias dua, LED lub neej luv dua, qhov kub thiab txias, thiab LED lub neej ntev dua. Qhov ua haujlwm kub ntawm LED zoo tagnrho yog qhov tseeb ntawm 5 lossis xoom degrees tsis zoo. Tab sis qhov no yeej tsis yooj yim sua. Yog li ntawd, tom qab peb nkag siab txog qhov ua haujlwm zoo tshaj plaws ntawm LED teeb hlaws, peb yuav tsum ntxiv dag zog rau kev ua haujlwm ntawm cov cua sov thiab cov cua sov dissipation thaum tsim cov teeb ntau li ntau tau thaum tsim cov teeb ntau li ntau tau. Xijpeem, qhov kub thiab txias, qhov ntev ntawm LED lub neej ncua. Thib peb, kev ua haujlwm hluav taws xob tsis tsim hluav taws xob tsim ntawm LED teeb hlaws Raws li cov txiaj ntsig kev sim, qhov qis ntawm LED dawb lub teeb, qhov me dua qhov hluav taws xob emissions, ntawm chav kawm, qhov me dua qhov ci. Raws li kev tshawb fawb, kev tsim ntawm LED hnub ci teeb pom kev zoo Circuit Court, tus tsav tsheb tam sim no ntawm LED feem ntau tsuas yog 5-10mA; ntau lub teeb siv nyob rau hauv lub teeb, xws li ntau tshaj 500 los yog ntau tshaj Thiab feem ntau nrov LED daim ntawv thov teeb pom kev zoo tsav tsheb tam sim no tsuas yog 15-18mA, thiab ob peb tus neeg tsim cov tam sim no ntau tshaj 20mA. Cov txiaj ntsig kev sim kuj pom tau tias nyob rau hauv tus neeg tsav tsheb tam sim no ntawm 14mA, thiab lub hau tsis tau tso cua, huab cua kub hauv nws mus txog 71 degrees, cov khoom qis qis, 1,000-teev lub teeb lwj, 2000 teev ntawm lub teeb lwj ntawm 3% mus rau 3%. , 3% decaying yog 3%. Qhov no qhia tau hais tias qhov qis-dhau LED dawb lub teeb tau mus txog nws qhov siab tshaj plaws siv nyob rau hauv xws li ib puag ncig. Txawm nws loj npaum li cas los, nws yog kev puas tsuaj rau nws. Vim hais tias lub rooj tsavxwm laus siv tsis muaj cua sov dissipation muaj nuj nqi, lub tshav kub generated thaum lub sij hawm LED yog yeej tsis muaj peev xwm xa mus rau sab nraud. ( 1 Khaulee 3: 1 - 5) Tej no. Cov huab cua kub hauv lub vaj huam sib luag qub tau mus txog qhov kub ntawm 101 degrees. Qhov kub ntawm lub hau ntawm lub vaj huam sib luag qub tsuas yog 53 degrees, uas yog kaum ob degrees. Qhov no qhia tau hais tias lub hau yas tsim ib txwm tsis muaj kev ua haujlwm ntawm kev ua cua sov thiab cua sov dissipation. Tab sis nyob rau hauv kev tsim lub teeb dav dav, xav txog kev ua haujlwm ntawm kev ua cua sov thiab cua sov dissipation. Yog li ntawd, nyob rau hauv cov ntsiab lus, tus tsim ntawm kev ua hauj lwm hluav taws xob tsis ua hauj lwm ntawm LED teeb hlaws yuav tsum tau raws li qhov tseeb qhov teeb meem. Yog hais tias lub tshav kub-conducting tshav kub dissipation muaj nuj nqi ntawm lub teeb yog zoo heev, nws yog tsim nyog los ua kom lub zog tsav tam sim no ntawm LED dawb teeb, vim hais tias cov LED teeb hlaws dai ua hauj lwm tsim. Cov cua sov tuaj yeem raug xa tawm tam sim no, thiab tsis muaj kev puas tsuaj rau LED, uas yog kev saib xyuas zoo tshaj plaws rau LED. Ntawm qhov tsis sib xws, yog tias cov cua kub thiab cua kub dissipation muaj nuj nqi ntawm lub teeb yog sloppy, nws yog qhov zoo tshaj plaws los tsim lub Circuit Court tsawg dua thiab cia nws tso qee qhov cua sov.