Tom qab Qhov Zoo: Peb 4-kauj ruam ntau lawm & soj ntsuam txheej txheem rau SMD LED teeb pom kev zoo

^{Ntawm JR Teeb pom kev zoo, qhov zoo tsis yog kev kuaj zaum kawg nkaus xwb. Nws tau tsim rau hauv txhua kauj ruam ntawm kev tsim khoom. Thaum nws los txog rau peb cov SMD LED teeb, peb ua raws li kev nruj, ntau- cov txheej txheem kuaj xyuas kom ntseeg tau tias txhua yam khoom muab kev ua tau zoo thiab ua haujlwm ntev.}

^{Nov yog yuav ua li cas peb ua kom txhua lub teeb ua tau raws li peb cov qauv, los ntawm liab qab PCB kom tiav dej nyab lub teeb module:}

^{Kauj Ruam 1: Nkag mus rau LED Board Inspection}

^{Ua ntej txhua yam cuam tshuam txog peb cov kab SMT, txhua lub rooj tsav xwm LED tau dhau los ua qhov pom tseeb thiab ua haujlwm zoo. Peb cov kws tshaj lij siv lub zog ntawm LED hlaws ib qho los ntawm ib qho los txheeb xyuas lawv lub teeb kom raug. Nyob rau tib lub sijhawm, peb tshuaj xyuas qhov tshwm sim ntawm txhua cov hlaws thiab xyuas seb nws lub cev puas tsuaj, tsis muaj xim, lossis muaj kab mob. Lub rooj vag thawj zaug no txwv tsis pub cov khoom siv tsis raug nkag mus rau hauv kev tsim khoom.}

Kauj ruam 2: AOI (Automated Optical Inspection) Tom qab SMT Assembly

^{Thaum cov khoom siv SMD tau teeb tsa rau ntawm cov laug cam los ntawm peb cov khoom siv SMT, txhua qhov sib dhos dhau los ntawm peb qhov system AOI. Qhov zoo tshaj plaws kho qhov muag scanner cia li kuaj xyuas cov teeb meem tseem ceeb, suav nrog:}

^{· Cov pob qij txha los yog cov khoom siv tsis txaus uas tuaj yeem ua rau tsis sib xws}

^{· Rov qab polarity (positive/negative terminals swapped)}

^{· Cov khoom uas ploj lawm lossis tsis raug}

Yog tias AOI kuaj pom qhov tsis txaus ntseeg, lub rooj tsav xwm tau teeb tsa thiab xa mus rau kev ua haujlwm tam sim ntawd. Tsis muaj kev zam.

^{Kauj Ruam 3: Semi-Tiav Module Test}

^{Tom qab cov laug cam tau sib sau ua ke rau hauv ib nrab- cov qauv ua tiav, peb ua lwm qhov kev kuaj xyuas ua haujlwm thiab pom. Nyob rau theem no, peb sim cov LED tag nrho cov kev ua tau zoo dua kom paub meej tias qhov ci, xim sib xws, thiab kev siv hluav taws xob. Nyob rau tib lub sijhawm, peb pab neeg ua haujlwm tau zoo tshuaj xyuas cov qauv ntawm cov khoom siv kho tshuab, suav nrog kev ncaj ncees ntawm lub tsev, thaiv, thiab cov pob qij txha. Qhov no ua kom ntseeg tau tias txawm tias ua ntej kev sib dhos zaum kawg, lub module yog hluav taws xob thiab lub suab nrov.}

^{Kauj Ruam 4: Kev Ntsuam Xyuas Kev Laus (Qhov Kawg Kev Ntseeg Zoo Tshaj)}

^{Tsis muaj SMD lub teeb tawm ntawm peb qhov chaw tsis dhau qhov kev kuaj kev laus tag nrho. Txhua qhov ua tiav lub teeb pom kev zoo yog siv rau lub sijhawm teev tseg raws li kev ua haujlwm ib txwm muaj lossis nrawm dua. Hauv qhov txheej txheem no, peb saib xyuas zoo rau:}

^{· Flickering lossis tsis ruaj khov tso zis}

^{· LEDs tuag / tsaus nti}

^{· Maj mam brightness degradation}

^{· Txhua tus cwj pwm tsis sib xws ntawm hluav taws xob}

^{Tsuas yog cov modules uas dhau qhov kev kuaj kev laus yam tsis muaj qhov txawv txav tau pom zoo rau ntim thiab xa khoom.}

^{Vim Li Cas Peb Ua Qhov no rau Txhua Ib Pawg}

^{Peb ntseeg tias qhov zoo tsis tuaj yeem kuaj xyuas thaum kawg, tab sis nws yuav tsum raug txheeb xyuas ntawm txhua theem. Los ntawm thawj lub teeb LED- mus txog qhov kawg ntawm kev laus, peb cov txheej txheem yog tsim los ntes cov teeb meem thaum ntxov, tshem tawm qhov ua tsis tiav, thiab xa cov khoom teeb pom kev zoo uas koj tuaj yeem ntseeg tau.}