Zvakanakira uye zvakaipira zveCOB yakarongedza LED kuratidza skrini uye matambudziko ekukura kwayo

Zvakanakira uye zvakaipira zveCOB yakarongedza LED kuratidza skrini uye matambudziko ekukura kwayo

Nekuenderera mberi kwekuenderera mberi kweiyo solid-state yekuvhenekesa tekinoroji, COB (chip pabhodhi) tekinoroji yekurongedza yakagamuchira kutariswa kwakawanda.Sezvo COB mwenje sosi ine hunhu hwekudzikira kupisa kwekupisa, kupenya kwakakwira, kupenya kushoma, uye kubuda yunifomu, yakashandiswa zvakanyanya mumidziyo yemwenje yemukati nekunze, senge rambi repasi, mwenje wegirobhu, fluorescent chubhu, mwenje wemugwagwa, uye mwenje weindasitiri nemigodhi.

Iri bepa rinotsanangura zvakanakira COB kurongedza zvichienzaniswa neyechinyakare LED kurongedza, kunyanya kubva pazvinhu zvitanhatu: theoretical zvakanakira, kugadzira zvakanaka mabhenefiti, kuderera kwemafuta kuramba mabhenefiti, mabhenefiti emhando yepamusoro, mabhenefiti ekushandisa, uye zvakanakira mutengo, uye inotsanangura matambudziko aripo eCOB tekinoroji. .

Musiyano pakati peCOB kurongedza uye SMD kurongedza

Theoretical zvakanakira COB:

1. Dhizaini nekusimudzira: pasina dhayamita yemuviri mumwe chete wemwenje, inogona kunge iri diki mudzidziso;

2. Tekinoroji maitiro: kuderedza mutengo webhaketi, kurerutsa maitiro ekugadzira, kuderedza kupisa kupikisa kwechip, uye kuwana yakakwirira-density packaging;

3. Kuiswa kweuinjiniya: Kubva kudivi rekushandisa, COB LED kuratidza module inogona kupa zvakanyanya nyore uye nekukurumidza kuisirwa kusimba kune vanogadzira yekuratidzira application side.

4. Chigadzirwa maitiro:

(1) Ultra mwenje uye mutete: mabhodhi ePCB ane ukobvu kubva pa0.4-1.2mm anogona kushandiswa zvinoenderana nezvinodiwa chaizvo nevatengi kuderedza huremu kusvika 1/3 yezvigadzirwa zvechinyakare, izvo zvinogona kuderedza zvakanyanya chimiro. , mari yekufambisa uye engineering yevatengi.

(2) Kupokana kuramba uye kumanikidza kuramba: Zvigadzirwa zveCOB zvinoputira zvakananga machipisi e LED munzvimbo dzemwenje dzePCB mabhodhi, wobva waavhara nekuasimbisa neanonamatira epoxy resin.Iyo yepamusoro penzvimbo dzemwenje inosimudzwa ikaita denderedzwa, iyo yakatsetseka, yakaoma, inopesana nemhedzisiro uye isingapfeki.

(3) Hombe yekona yekuona: kona yekuona yakakura kudarika 175 madhigirii, pedyo ne180 madhigirii, uye ine zviri nani optical diffuse ruvara rwemadhaka chiedza.

(4) Kupisa kwakasimba kwekupisa simba: Zvigadzirwa zveCOB zvinoputira mwenje paPCB, uye nekukurumidza kutamisa kupisa kwemwenje wemwenje kuburikidza nefoiri yemhangura paPCB.Iyo yemhangura foil ukobvu yePCB board ine yakasimba process zvinodiwa.Nekuwedzerwa kwegoridhe deposition process, hazvizokonzeresa kudzikama kwechiedza.Naizvozvo, kune mashoma mwenje akafa, anowedzera zvakanyanya hupenyu hwe LED kuratidza.

(5) Pfeka isingachinji, iri nyore kuchenesa: yakatsetseka uye yakaoma pamusoro, inodzivirira uye isingapfeki;Iko hakuna mask, uye guruva rinogona kucheneswa nemvura kana jira.

+Inogona kusangana nemamiriro ekunze ekushanda, uye tembiricha musiyano nharaunda kubva - 30℃kusvika -80℃inogona kushandiswa zvakajairika.

Nhanganyaya yeCOB Packaging process

1. Zvakanakira mukugadzira zvinobudirira

Maitiro ekugadzira ekurongedza kweCOB anonyanya kufanana neaya echinyakare SMD, uye kushanda kweCOB kurongedza kwakangofanana neiyo SMD kurongedza mukuita kwetambo yakasimba solder.Panyaya yekugovera, kupatsanura, kugovera mwenje uye kurongedza, kugona kweCOB kurongedza kwakakwira zvakanyanya kupfuura izvo zveSMD zvigadzirwa.Mari yebasa uye yekugadzira yeakaundi echinyakare SMD yekurongedza inosvika gumi neshanu muzana yemutengo wezvinhu, nepo mutengo wevashandi nekugadzira weCOB yekurongedza account inosvika gumi muzana yemutengo wezvinhu.Ne COB kurongedza, mari yevashandi uye yekugadzira inogona kuchengetwa ne5%.

2. Zvakanakira kushoma thermal resistance

Iyo sisitimu yekupisa yekupokana kwechinyakare SMD yekurongedza maapplication ndeye: chip - yakasimba crystal adhesive - solder joint - solder paste - copper foil - insulating layer - aluminium.Iko kupisa kwekupokana kweCOB yekurongedza system ndeye: chip - yakasimba crystal adhesive - aluminium.Iyo system yekupisa yekupokana yeCOB package yakadzikira zvakanyanya pane yeyakajairwa SMD package, iyo inovandudza zvakanyanya hupenyu hweLED.

3. Chiedza chemhando yakanakira

Muchinyakare SMD kurongedza, akawanda discrete maturusi anonamirwa paPCB kuti agadzire iwo mwenje sosi zvikamu zve LED maapplication muchimiro chezvigamba.Iyi nzira ine matambudziko echiedza chemavara, kupenya uye ghosting.Iyo COB package ndeye yakabatanidzwa pasuru, inova pamusoro pechiedza sosi.Maonero akakura uye ari nyore kugadzirisa, kuderedza kurasikirwa kwechiedza refraction.

4. Zvakanakira kushandisa

COB mwenje sosi inobvisa maitiro ekumisikidza uye reflow soldering pakupera kwekunyorera, inoderedza zvakanyanya kugadzirwa nekugadzira maitiro pakupera kwekunyorera, uye inochengetedza inoenderana michina.Mutengo wekugadzira nekugadzira michina wakaderera, uye kugona kwekugadzira kwakakwira.

5. Mari zvakanakira

Ne COB light source, mari yerambi rose 1600lm chirongwa inogona kuderedzwa ne24.44%, mutengo werambi rose 1800lm chirongwa unogona kuderedzwa ne29%, uye mutengo werambi rose 2000lm chirongwa chinogona kuderedzwa ne32.37%

Kushandisa COB mwenje sosi kune mashanu mabhenefiti pamusoro pekushandisa yechinyakare SMD pasuru mwenje sosi, iyo ine mabhenefiti makuru muchiedza sosi yekugadzirwa kwemagetsi, kupikisa kwemafuta, mwenje wemhando, kushandisa uye mutengo.Mari yakazara inogona kudzikiswa ne25%, uye chishandiso chiri nyore uye chiri nyore kushandisa, uye maitiro ari nyore.

Iyezvino COB tekinoroji matambudziko:

Parizvino, kuunganidzwa kweindasitiri yeCOB uye maitiro ekuita zvinoda kuvandudzwa, uye inotarisanawo nemamwe matambudziko ehunyanzvi.

1. Nhamba yekutanga yekupasa yekuputira yakaderera, kusiyana kwakaderera, uye mari yekuchengetedza yakakwirira;

2. Ruvara rwayo runopa kufanana rwakanyanya kushoma pane iyo yekuratidzira skrini kuseri kweSMD chip ine chiedza uye kupatsanurwa kwemavara.

3. Iyo iripo COB packaging ichiri kushandisa iyo formal chip, iyo inoda yakasimba crystal uye waya yekubatanidza maitiro.Nokudaro, kune matambudziko akawanda muhutano hwekubatanidza waya, uye kuoma kwekuita kunopindirana kune pad nzvimbo.

4. Mutengo wekugadzira: nekuda kwehuwandu hwekuremara, mutengo wekugadzira wakakwira zvakanyanya kupfuura SMD diki spacing.

Zvichienderana nezvikonzero zviri pamusoro, kunyangwe tekinoroji yeCOB yazvino yakaita mamwe mabhindauko mumunda wekuratidzira, hazvireve kuti tekinoroji yeSMD yabuda zvachose kubva mukudzikira.Mumunda umo nzvimbo yepakati inopfuura 1.0mm, iyo SMD yekurongedza tekinoroji, neyakakura uye yakagadzikana mashandiro echigadzirwa, yakakura misika tsika uye yakakwana yekuisa uye kugadzirisa garandi system, ichiri inotungamira basa, uye zvakare ndiyo yakanyanya kusarudzwa sarudzo. gwara kune vashandisi uye musika.

Nekuvandudzwa zvishoma nezvishoma kweCOB chigadzirwa tekinoroji uye nekumwe kushanduka kwekudiwa kwemusika, hukuru-hukuru hwekushandisa COB yekurongedza tekinoroji icharatidza hunyanzvi hwayo hwehunyanzvi uye kukosha muhuwandu hwe0.5mm ~ 1.0mm.Kukwereta izwi kubva kuindasitiri, "COB kurongedza yakagadzirirwa 1.0mm uye pazasi".

MPLED inogona kukupa LED kuratidzwa kweCOB yekurongedza maitiro, uye yedu ST Pro series zvigadzirwa zvinogona kupa mhinduro dzakadaro. Iyo LED inoratidzira skrini inopedzwa necob yekurongedza maitiro ine diki nzvimbo, yakajeka uye yakanyanya kutetepa kuratidza mufananidzo.Iyo chiedza-emitting chip inoiswa zvakananga paPCB board, uye kupisa kunoparadzirwa zvakananga kuburikidza nebhodhi.Iko kupisa kunopisa kukosha kuduku, uye kupisa kunopisa kwakasimba.Chiedza chepamusoro chinoburitsa chiedza.Chitarisiko chiri nani.

ST Pro series