Qhov Kawg Qhia Rau SMD LED Txoj Kev Txhim Kho Thiab Nws Daim Ntawv Thov

Cov thev naus laus zis tom qab LED teeb pom kev zoo yog tam sim no nyob rau lub sijhawm ntawm kev loj hlob sai, thiab kev ua haujlwm luminous txuas ntxiv mus. Txhua ob xyoos, tus nqi ntawm cov luminous flux uas tuaj yeem tsim tau los ntawm ib qho khoom siv LED ib pob yog nce los ntawm ib qho ntawm ob. Txij li thaum xyoo 1980s, tau muaj kev nce qib hauv kev nce qib ntawm kev siv nto - mounted li hauv kev tsim cov LEDs. Thaum nws los txog rau illumination, lub siab zog SMD LED uas tau tsim tom qab yog dab tsi yog siv rau lub tsheb vaj huam sib luag teeb pom kev zoo, nres teeb, thiab txawm tias tau txuas mus rau cov khoom siv teeb pom kev zoo.

SMD LED kev lag luam xwm txheej

Thaum pom los ntawm kev xav thoob ntiaj teb, kev ntim khoom ntim hauv Suav Taiwan suav txog rau caum feem pua ​​​​ntawm lub ntiaj teb feem. Kev tsim khoom thiab kev lag luam ntawm cov saw hlau kev lag luam yog nyob ruaj khov, tshwj xeeb tshaj yog hais txog kev ntim khoom, thiab muaj kev faib tawm ntawm kev ua haujlwm ntawm cov lag luam sab saud, nruab nrab, thiab qis. Thaum kev tsim khoom raug txav mus rau hauv av loj, tus nqi ntawm kev tsim khoom yuav txo qis, cia nws sib tw zoo dua nrog lwm lub tebchaws. Nws tau cia siab tias nyob rau hauv tsib mus rau kaum xyoo tom ntej no, Yangtze River Delta, Pearl River Delta, Fujian, thiab lwm qhov chaw yuav dhau los ua lub ntiaj teb cov chaw tsim khoom. UV LED ntim

Lub zos SMD LED kev lag luam tau ruaj khov tsis ntev los no los ntawm qhov pom ntawm Suav teb loj kev lag luam.

Cov yam ntxwv ntawm lub encapsulation siv nyob rau hauv SMD LEDs

phosphor thiab epoxy resin yog thawj zaug teeb tsa los ua pwm rau SMD LED, uas yog thawj kauj ruam hauv txheej txheem encapsulation. Tom ntej no, cov epoxy resin thiab phosphor hmoov yog ua ke los ua ib lub ncuav mog qab zib, uas yog adhered rau lub nti. Thaum kawg, qhov chaw seem nyob ib ncig ntawm lub nti yog ntim nrog epoxy resin los tsim ib qho SMD ntim LED.

Niaj hnub no, SMD LED ntau dua nyob rau hauv kev ua lag luam tau ntim nrog peb LED chips, thiab rau tus pins txuas ntxiv, uas txuas nrog rau saum npoo ntawm PCB pawg thawj coj saib. Qhov LED no muaj qhov loj me ntawm 50mm x 50mm. Nws yog sib txuas ncaj qha rau saum npoo ntawm lub dab dej kub siv thermally conductive nplaum, uas ua rau muaj kev txhim kho tseem ceeb hauv cov cua sov dissipation, kev cia siab, thiab txo tus nqi ntawm lub teeb decays. Substrates ua los ntawm cov hlau-ceramic composites nrog zoo thermal conductivity yog feem ntau yog dab tsi yog siv rau high-power LEDs. Cov no yog cov yam ntxwv tseem ceeb:

(1) Ib qib siab ntawm thermal conductivity thiab thermal tsis kam;

(2) Compatibility ntawm cov coefficient ntawm thermal expansion (TCE: 6.2);

(3) Anti-ultraviolet;

(4) Kev tiv thaiv corrosion, nrog rau qhov tsis muaj yellowing;

(5) Ua raws li cov txheej txheem teev tseg los ntawm ROHS;

(6) Muaj peev xwm tiv taus qhov kub thiab txias.

Lub thermal tsis kam ntawm LED encapsulation muaj feem cuam tshuam rau lub neej ntawm LED nti, tshwj xeeb tshaj yog hais txog LED nti uas raug rau siab tam sim no. Cov qauv ntawm lub hnab ntim khoom txiav txim siab tus nqi thiab kev ua haujlwm kub ntawm cov khoom siv hluav taws xob ntawm LED, thiab cov qauv ntawm lub ntim ntim tau hloov zuj zus mus rau qhov kev taw qhia ntawm qhov me me, nyias tuab, thiab zoo thermal dissipation. Qhov no yog qhov tseem ceeb vim tias tus nqi ntawm LED encapsulation khoom yog ncaj qha proportional rau lub tshav kub dissipation kev ua tau zoo ntawm cov khoom.

Thaum ntim cov chips LED ntxiv rau hauv ib qho SMD LED, qhov teeb meem ntawm cov cua sov dissipation yog ib yam uas yuav tsum tau muab coj los xav. Lub ultra-low thermal kuj muab los ntawm high-power SMD LEDs uas nws cov substrates yog ua los ntawm high thermal conductivity hlau-ceramic composites yog qhov tseem ceeb tshaj plaws cov txiaj ntsig muab los ntawm cov teeb no. Vim nws qhov loj me me thiab cov ntaub ntawv nyias nyias, ultra-low thermal resistance thiab high-power LED nti pob yog qhov zoo dua rau kev siv hauv cov ntawv thov uas muaj qhov txwv tsis pub muaj. Ntau daim ntawv thov tuaj yeem tau txais txiaj ntsig zoo los ntawm kev siv cov haujlwm no.

Qhov sib txawv ntawm SMD LEDs thiab DIP LEDs

Lub nto-mount ntaus ntawv (SMD) LED yog affixed rau sab saum toj ntawm lub Circuit Court board, ua rau nws tsim nyog rau nto-mount technology (SMT) ua raws li zoo raws li reflow soldering. LEDs nrog nto-mount diodes (SMD) muab kev txhim kho nyob rau hauv cov nqe lus ntawm brightness, saib lub kaum sab xis, flatness, dependability, thiab sib xws. Nws zoo heev kev co kuj, tsis tshua muaj solder sib koom ua txhaum tus nqi, thiab superior high-frequency yam ntxwv yog ib co ntawm nws zoo thaum piv rau lwm cov khoom ntim.

Lub hauv-kab LED siv potting ua nws cov khoom ntim. Thawj kauj ruam hauv cov txheej txheem potting yog txhaj cov kua epoxy resin rau hauv kab noj hniav ntawm LED pwm, ua raws li kev ntxig ntawm lub siab-welded LED bracket. Tom qab ntawd, lub rooj sib txoos tau muab tso rau hauv qhov cub kom kho cov epoxy resin, thiab thaum kawg, LED yog tsim tom qab tshem tawm ntawm pwm kab noj hniav. Nws txoj kev lag luam muaj zog tuaj yeem raug ntaus nqi rau ob qho tib si ncaj qha kev tsim khoom thiab cov nqi sib tw.

Vim tias muaj kev nthuav dav sai ntawm kev lag luam thoob plaws ntiaj teb, tam sim no muaj qhov xav tau ceev nrooj los nrhiav kev daws teeb meem thoob ntiaj teb ntawm cov khoom siv hluav taws xob tsis txaus. Kev siv lub teeb yog kwv yees li nees nkaum feem pua ​​ntawm kev siv hluav taws xob tag nrho. Ib qho tseem ceeb tshaj plaws uas yuav ua tau kom txuag tau lub zog yog txo qis lub zog uas siv rau kev teeb pom kev zoo. Txoj kev hloov mus deb ntawm cov teeb pom kev zoo tau nrawm los ntawm kev siv lub zog txuag hluav taws xob LED teeb, uas ua haujlwm hloov pauv rau cov teeb pom kev zoo li qub.

Qhov twg yuav SED LED los ntawm?

Zhuhai Tianhui Electronic Co., Ltd.,  ib cov Tus uv , tshwj xeeb hauv UV LED cua purification, UV LED dej sterilization, UV LED luam ntawv thiab kho, ua led  diode , ua led module, thiab lwm yam khoom. Nws muaj kev txawj tshawb fawb thiab kev tsim kho tshiab thiab cov neeg ua haujlwm muag khoom los muab cov neeg siv khoom UV LED Solutions, thiab nws cov khoom kuj tau txais kev qhuas ntawm ntau tus neeg siv khoom. Nrog rau kev ua tiav ntau lawm, zoo ib yam thiab kev cia siab, nrog rau cov nqi pheej yig, Tianhui Electronics twb tau ua haujlwm hauv UV LED pob lag luam. Los ntawm luv mus rau qhov ntev wavelengths, cov khoom muaj xws li UVA, UVB, thiab UVC, nrog rau tag nrho UV LED specs xws li los ntawm qis mus rau siab zog.