LED Sawb Teeb Tsim Tau Li Cas? (Kauj Ruam 3-12)

Sij Hawm 3: Kev Pab Cuam Zoo Ib

Thaum tau txais ntawm cov chaw tsim khoom lag luam, cov Cheebtsam raug xa mus kuaj thiab pov thawj ua kom tau lees tias qhov tseeb thiab ua raws li cov ntawv txheeb xyuas zoo. Qhov no yog qhov tseem ceeb tseem ceeb heev.

Kauj Ruam 4: Dehydrate tusCoj

Thaum tau txais cov khoom siv, peb tuaj yeem pib peb cov txheej txheem tsim khoom hauv lub LED qhuav chav. Lub phosphor ntawm lub LED Nim noo; Yog li ntawd, peb ua rau lawv ncu thaum 158 degrees Fahrenheit rau 12 teev kom yooj yim kom qhuav.

Kauj Ruam 5: Tswjhwm Zoo Ntu ob

Thaum lawv qhuav, rov ntsuam xyuas cov LEDs kom ntseeg tau tias cov ntaub ntawv photometric thiab cov qauv hauv cov qauv tsim khoom. Qho kaj

Cov ntaub ntawv muaj cov xim daws teeb meem correlated xim (CCT) thiab xim rendering Performance index (CRI). Thaum ua tiav ntawm theem no, lawv tau sau npe, muab dov, thiab npaj tau kev tso chaw rau PCB.

Kauj Ruam 6: Cricate thiab ntiav cov sib zog pwm

Txhuas pwm raug cov hlua khi rau txhua lub teeb ci tsim. Lawv yog cov qauv (stencils, jigs, thiab lwm yam) tso rau ntawm pecb liab qab kom ntseeg tau tias cov muab faib uayees.

Kauj Ruam 7: Thov cov hlau txhuas-dawb muab tshuaj txhuam rau lub pcb

A 'pcb ntawv' muaj nees nkaum-plaub loosely sib txuas ntawm liab pecb, txhua qhov ntsuas 0. 5 meters nyob ntev. Cov pwm yog qhov chaw nyob hauv qab, thiab cov hmoov txhuas tsis muaj zog ua kom muaj pwm ntawm pwm lub tshuab liab, ua rau muaj kev cuam tshuam cov ntaub qhwv xim.

Kauj Ruam 8: Tswjhwm Zoo 3

Ib qho txheej txheem tswj hwm zoo ntxiv kom txhua kis muaj qhov ntau ntawm cov hamdere thiab yog npaj tau yooj yim rau kev tso chaw.

Kauj ruam 9: Kev npaj cov khoom sib xyaw ntawm cov ntaub qhwv

Lub PBC ntawv yog tom qab muab tso rau hauv lub tshuab hluav taws xob saum npoo av (SMT) tso, uas feem ntau hu ua tus xaiv-thiab-qhov chaw (PNP). Lub tshuab no yog txoj haujlwm thiab siv cov khoom siv tsis taus thiab coj mus rau cov cam me me thiab lub siab tsim nyog. Lub tshuab no tuaj yeem ua 80, {{}}} sib ntxiv rau txhua teev.
Ntshiab ntau dua li txhua txhais tes nyob rau sab hnub poob lossis sab hnub tuaj!

Kauj ruam 10: Tswjhwm Zoo 4

Tus PCB, nrog tag nrho cov khoom siv affixed, yog tshem tawm ntawm lub tshuab rau kev soj ntsuam tom ntej los ntawm kev tswj kom zoo. Cov kev tiv thaiv ploj yog sau tseg, thiab daim ntawv yog hloov kho kom txog thaum nws ua tiav kev soj ntsuam.

Kauj Ruam 11: 'ci' tustxoj caiNyob rau hauv ib qho cub tawg kom ruaj ntseg txhua yam.

Cov Cheebtsam uas tsis muaj peev xwm tsis ua kom tiav rau lub PCB kom txog thaum tus muab tshuaj txhuam muab solorifies. Tus PCB cov ntawv txheeb tau conveyed ntawm txoj siv sia rau hauv qhov cub reflow. Cov appflow cub yog ib qho appongated elongated suav nrog ntau thaj chaw nrog kev tswj hwm kev tswj hwm kub raws li PCBs Traversatures los ntawm nws. Peb tau hnov ​​tias nws muaj peev xwm ua noj pizza hauv lawv, tab sis peb tseem tsis tau lees paub qhov no.

Kauj Ruam 12: Tswjhwm Theem Zoo 5

Thaum tawm ntawm lub qhov cub, tus ham muab tshuaj txhuam rau ntawm PCB muaj kev ruaj khov, coj peb kauj ruam no kom deb ntawm kev tsim kho lawv liLED Sawb TeebCov. Kev ntsuas kev tswj hwm tau zoo ntxiv yog qhov tseem ceeb kom ntseeg tau cov kev sib txawv ntawm txhua tus coj. Tso tseg cov ntawv txheeb yog rov ua dua lossis siv cov hlua khi kom txog thaum lawv sib ntsib.