Qhov txawv ntawm Gob thiab COB yog dab tsi?

Hauv ntiaj teb ntawm LED thev naus laus zis, cov lus GOB thiab COB feem ntau raug tham txog thaum xav txog cov LED modules ua haujlwm siab rau ntau yam kev siv. Ob lub thev naus laus zis ntim LED no yog qhov tseem ceeb hauv kev ua kom lub teeb LED ruaj khov, ua haujlwm tau zoo, thiab ci ntsa iab. Txawm li cas los xij, txawm hais tias ob qho tib si GOB thiab COB xa mus rau cov txheej txheem ntawm kev teeb tsa LED chips, lawv txawv ntau heev ntawm cov qauv, kev siv, thiab kev ua tau zoo.

A. COB (Chip on Board) yog dab tsi?LED Screen?

COB (Chip on Board) yog ib txoj kev siv tshuab los txuas ntau lub LED chips ncaj qha rau ntawm ib lub substrate yam tsis muaj kev ntim khoom ib txwm muaj. Hauv COB LED ib txwm muaj, ntau lub LED chips raug txuas rau ib lub board lossis substrate, uas tso cai rau kev tsim qauv me me thiab ua haujlwm tau zoo dua. COB LEDs muab cov teeb pom kev zoo hauv ib cheeb tsam me me, ua rau lawv yog qhov kev daws teeb meem zoo tshaj plaws rau kev ua haujlwm siab thiab kev siv teeb pom kev zoo.

1. Cov Qauv thiab Txoj Cai Ua Haujlwm:

Hauv COB LED, cov chips LED ib leeg yog:

- Muab ntsia ncaj qha rau ntawm lub substrate: Cov chips LED raug muab tso rau ntawm lub hauv paus, uas feem ntau yog cov khoom siv uas muaj kev ua tau zoo thermal conductivity, xws li txhuas, los pab tshem tawm cua sov kom zoo.

- Txuas nrog hluav taws xob: Cov chips raug txuas ncaj qha rau lub rooj tsavxwm, ua rau muaj kev ntws tam sim no thiab kev faib hluav taws xob zoo.

- Kev tswj cua sov: COB LEDs feem ntau siv cov hlau tseem ceeb PCBs (MCCPCB), uas pab tshem tawm cua sov thiab txhim kho lub neej ntev thiab kev ua haujlwm zoo ntawm LEDs.

Cov thev naus laus zis COB yog qhov nrov tshwj xeeb hauv cov ntawv thov tso saib lag luam, xws li kev tshaj tawm sab hauv tsev, kev tshaj tawm sab nraum zoov, thiab kev sib tham, vim nws tso cai rau qhov kaj siab thiab lub teeb zoo sib xws.

(1) Kev Ua Haujlwm Zoo Tshaj Plaws: COB LEDs tsim cov qib siab ci ntsa iab thiab muab cov teeb pom kev zoo heev, ua rau lawv haum rau kev teeb pom kev loj.

(2) Kev Tswj Xyuas Thermal Zoo Dua: Kev teeb tsa ncaj qha ntawm cov chips ntawm cov khoom siv thermally conductive ua kom ntseeg tau tias cua sov tau zoo dissipated, txo qhov kev pheej hmoo ntawm overheating thiab txhim kho lub neej ntev ntawm LEDs.

(3) Tsim Qauv Me Me: Ntau lub LED chips tau ntim ua ke nruj nreem, tsim kom muaj lub teeb ci ntsa iab hauv thaj chaw me me, uas zoo tagnrho rau cov ntawv thov uas xav tau lub teeb ci ntsa iab thiab sib xws.

(4) Kev Ruaj Ntseg thiab Kev Ntseeg Tau: COB LEDs feem ntau yuav ruaj khov dua li cov SMD LEDs ib leeg, vim tias cov chips tau teeb tsa ruaj khov thiab tsis tshua muaj kev puas tsuaj los ntawm kev co lossis kev poob siab.

3. Qhov tsis zoo ntawm COB LEDs:

(1) Tus Nqi Siab Dua: COB LEDs feem ntau kim dua vim yog cov txheej txheem tsim khoom siab heev thiab cov ntaub ntawv zoo siv rau kev tswj hwm thermal.

(2) Kev Ywj Pheej Txwv: COB LEDs feem ntau siv rau hauv cov ntawv thov nruj (xws li kev teeb tsa teeb pom kev zoo) thiab tsis yooj ywm li SMD LEDs, uas tuaj yeem ntsia tau rau ntawm cov PCBs yooj ywm.

B. GOB (Kua nplaum rau ntawm lub rooj tsavxwm) yog dab tsi?

GOB (Kua nplaum rau ntawm Rooj Tsavxwm) yog ib txoj kev siv tshuab ntim khoom LED tshiab uas txhim kho cov thev naus laus zis COB ib txwm muaj los ntawm kev siv cov txheej tiv thaiv ntxiv lossis kua nplaum rau ntawm cov LED chip, uas ua rau lub LED ruaj khov thiab ntseeg tau. GOB yog tsim los tiv thaiv kev puas tsuaj rau cov LED chips los ntawm cov yam sab nraud xws li hmoov av, dej noo, thiab kev co.

Hauv kev teeb tsa GOB, tom qab cov LED chips tau teeb tsa rau ntawm PCB (zoo li hauv COB teeb tsa), ib txheej tiv thaiv ntawm epoxy lossis silicon kua nplaum raug siv rau ntawm qhov chaw. Cov txheej no ua haujlwm rau:

- Tiv thaiv cov LED chips los ntawm kev puas tsuaj rau ib puag ncig (hmoov av, noo noo, xeb).

- Txhim kho lub teeb pom kev zoo thiab kev ua haujlwm zoo los ntawm kev txo qhov nqus lub teeb uas yuav tshwm sim hauv qhov teeb tsa ntau dua.

- Ua kom muaj kev ntseeg siab ntxiv los ntawm kev ua kom cov LED chips nyob twj ywm thiab ua haujlwm tau ntev, txawm tias nyob rau hauv cov xwm txheej hnyav.

Cov kua nplaum siv hauv GOB thev naus laus zis kuj pab nrog kev sib xws ntawm lub teeb thiab xim sib xws, uas yog qhov tseem ceeb hauv cov ntawv thov zoo li Cov Zaub LED thiab cov paib loj.

1. Cov Qauv thiab Txoj Cai Ua Haujlwm:

- Cov chips LED raug teeb tsa rau ntawm lub substrate (zoo li PCB) zoo li hauv cov qauv COB teeb tsa.

- Cov kua nplaum lossis epoxy raug siv rau saum cov chips los tiv thaiv thiab kaw lawv, txhim kho qhov kev ua haujlwm ntawm module.

- Kev tiv thaiv ib puag ncig zoo dua: Cov kua nplaum ua ib qho thaiv uas tiv thaiv cov dej noo, hmoov av, thiab lwm yam khoom tsis huv uas yuav ua rau lub chip ua haujlwm tsis zoo dhau sijhawm.

GOB feem ntau siv rau hauv cov ntawv thov tshaj tawm sab nraum zoov thiab cov chaw uas LEDs 路灯广告牌 yuav ntsib kev raug rau cov ntsiab lus, xws li cov zaub sab nraum zoov, teeb ntawm txoj kev, thiab cov tshuab teeb pom kev zoo hauv kev lag luam uas ruaj khov heev.

2. Cov txiaj ntsig ntawm GOB LEDs:

(1) Kev Ruaj Khov Zoo Dua: Cov txheej nplaum tiv thaiv ua kom ntseeg tau tias cov LED chips raug tiv thaiv zoo dua los ntawm kev phom sij ib puag ncig, ua rau GOB LEDs tsim nyog rau kev siv sab nraum zoov thiab kev lag luam.

(2) Kev Faib Teeb Zoo Dua: Cov kua nplaum tuaj yeem pab txhim kho kev sib kis teeb thiab txo qhov pom ntawm cov chaw tsaus lossis cov teeb tsis sib xws, ua kom muaj teeb pom kev zoo dua.

(3) Kev Tiv Thaiv Dej Thiab Pluav: GOB thev naus laus zis ua rau LED tiv thaiv dej, plua plav, thiab lwm yam kuab paug, ntev nws lub neej thiab txhim kho kev ua tau zoo hauv cov chaw nyuaj.

(4) Kev Txhim Kho Kev Ntseeg Siab: Los ntawm kev ruaj ntseg cov LED chips nyob rau hauv qhov chaw nrog ib txheej tiv thaiv, GOB LEDs yuav tsis tshua muaj kev puas tsuaj los ntawm lub zog sab nraud, xws li kev co lossis kev poob siab.

3. Qhov tsis zoo ntawm GOB LEDs:

(1) Tus Nqi Siab Dua: Zoo ib yam li COB LEDs, GOB LEDs kim dua vim yog cov kauj ruam tsim khoom ntxiv thiab cov ntaub ntawv siv hauv cov txheej txheem.

(2) Kev Ywj Pheej Txwv: Ib yam li COB LEDs, GOB LEDs feem ntau yog siv rau hauv kev teeb tsa ruaj khov thiab tej zaum yuav tsis hloov pauv tau rau cov ntawv thov hloov pauv tau.

(3) Qhov Ua Tau Qhov Muag Poob: Cov txheej nplaum qee zaum ua rau qhov muag tsis pom kev zoo me ntsis, vim nws yuav nqus tau qee lub teeb, txawm hais tias qhov no tsawg heev thaum piv rau cov txiaj ntsig.