Qhov tseem ceeb ntawm tshav kub mus rau LEDs?

2020/10/14

Puas yog tshav kub dissipation tseem ceeb rau LEDs?

Hais txog qhov kub thiab txias, LEDs feem ntau hu ua "txias" lub teeb pom kev zoo. Qhov no yog vim hais tias cov teeb ci hluav taws xob ntawm LEDs siv rau cov teeb pom kev zoo tsis muaj cov duab hluav taws xob infrared, uas txawv ntawm cov teeb pom kev zoo tsim lub teeb ci ntau lub teeb pom kev zoo (ntawm chav kawm, qee qhov LED tau siv cov hom phiaj tsim hluav taws xob tau tsim los tsim hluav taws xob infrared, tab sis hauv cov hluav taws xob no tsis xam))). Cov LED kuj feem ntau ua rau "txias" vim tias lawv taws teeb los ntawm cov tshuab ua rau lwm qhov ua rau muaj qhov tsis txaus siab ntawm cov khoom (xws li tungsten filaments inincandescent lamps). Txawm hais tias LED teeb pom kev zoo hluav taws xob tsis tsim hluav taws xob ntau dhau ntawm tshav kub, lub LED tseem tsim hluav taws xob hauv cov hlws ris, uas yuav tsum tau muaj cov khoom hluav taws xob sib xyaw nrog kev sib txuam thiab conduction. Siv cov hauv kev hauv qab no kom nqus tau los ntawm lub tshuab hluav taws xob thiab kom ua tiav cov teeb pom kev siab dua thiab cov cuab yeej ntev dua lub neej los ntawm kev ua haujlwm ntawm LED ntawm qhov ntsuas kub tsawg dua.

Hauv ib qho chaw, ib lub teeb LED muaj xws li: ib lub tshav kub kub nrog rau cov kab sib xyaw ua ke ntawm ib qho chaw; thiab cov tswvcuab conductive yam txawv rau lub cev nyiaj txiag, cov tswvcuab txuas nrog nrog rau ob sab sib txuas hluav taws xob Sab zoo electrode, ib lossis ntau qhov tsis zoo electrodes sib cais los ntawm cov electrode zoo thiab sib nrug ntawm qhov zoo electrode, thiab ib lossis ntau conductivepositioning strips txhua qhov tsis zoo ntawm cov electrode tsis zoo thiab qhov zoo ; ib lub teeb hluav taws xob teeb tsa ntawm cov conductive Cov Cheebtsam hluav taws xob sib xyaw ua ke ntawm cov LEDs. Cov LED no tau muab faib ua cov pab pawg sib txuas hauv parallel.The LEDs ntawm txhua pab pawg tau sib txuas hluav taws xob hauv koob. Txhua LED suav nrog kev tawm tsam thiab qhov tsis zoo ua rau lub luag haujlwm ruaj khov thiab txuas nrog rau qhov ntsuas hluav taws xob zoo. Taw ko taw electrode thiab cov hluav taws xob tsis zoo, cov hluav taws xob zoo ntawm cov hluav taws xob, yog cov hluav taws xob txuas rau ib qho tsis zoo electrode; qhov hluav taws xob tsis zoo yog hluav taws xob tiv thaiv tsis zoo rau hluav taws xob tsis zoo.

Thaum txhim kho cov kab ke no hauv cov ntawv thov, qhov yuav tsum tau ua kom paub tseeb tias cov cua sov ntawm cov kab ke LED tseem yog qhov tseem ceeb. Yuav tsum muaj lub ntsiab lus txaus ua kom sov deb ntawm lub system, lossis kom dim pa los ntawm convection tocool lub qhov chaw ua kom sov. Tso lub LED teeb pom kev zoo nyob rau hauv qhov chaw tsis muaj qhov ua tau thiab tsis zoo yuav ua rau muaj kev cuam tshuam loj ntawm qhov kub thiab lub cev tsis zoo.