COB LED vs SMD LED: Kupenya, Kushanda Nesimba & Mutengo Zvichienzaniswa

Nhanganyaya

Mwenje wakatanga sechishandiso chiri nyore chekuchengetedza husiku. Nhasi, chinangwa chawo chawedzera zvikuru. Kupfuura kungoonekwa chete, mwenje ikozvino unotungamira mamiriro enzvimbo, unotungamira runako rwezvivakwa, uye unoratidza zviitiko.

Kushanduka uku kunobva pahunyanzvi hwemazuva ano. Takachinja kubva pamoto wepakutanga kuenda kumidziyo yemagetsi yepamusoro (semiconductor-based Light Emitting Diodes, kana kuti LEDs). Mwenje iyi yemazuva ano inoshanda zvikuru. Inoshandisa simba shoma pane remabara ekare eincandescent uye inogara kwenguva yakareba ka25.

Kunyangwe zvazvo dziripo kwose kwose, kuchine kusava nechokwadi pamusoro peshoko iri. Chimwe chinhu chinowanzo taurwa kusanzwisisana ndechekuenzanisa LED yechinyakare neSMD sekunge tekinoroji dzakasiyana zvachose. Kuti zvive pachena, mudziyo wakaiswa zvakananga pamusoro pebhodhi redunhu (SMD kana Surface Mounted Device) ingori mhando chaiyo yeLED. Zita racho rinobva pakurongwa uye kuiswa kwechip pabhodhi.

Parizvino, musika wemwenje unotongwa nenzira mbiri huru dzekurongedza mwenje idzi:

● IyoSMD Maitiro: Nzira iyi yakachinja zvachose indasitiri nekuti yakaita kuti kugadzirwa kwemhando dzakawanda kubudirire zvikuru. Yakabvumira mhando dzakasiyana-siyana dzemavara.

● IyoCOB Maitiro: Seimwe nzira inoshanda zvakanyanya, vagadziri vakatanga kuisa machipisi akawanda emwenje pamwe chete zvakananga pachigadziko chimwe chete (Chip-on-Board, kana COB). Dhizaini iyi inokosheswa zvikuru nekuti inogadzira nzvimbo yakajeka uye yakabatana yekuvhenekesa.

Muchinyorwa chino, tichaenzanisa matekinoroji maviri aya toona kuti ndeipi sarudzo yakakodzera mashandisirwo akasiyana.

Kunzwisisa Tekinoroji yeSMD LED

Mavakirwo Anoitwa Mwenje

Mwenje iyi inogadzirwa nekubatanidza machipisi emwenje ega ega zvakananga panzvimbo inonzi Printed Circuit Board, kana kuti PCB. Haashandise makumbo ekare, esimbi anopfuura nepabhodhi uye anoda kusungirirwa kwakaoma.

Pane kudaro, michina inoisa zvikamu zvakananga pamusoro ichishandisa Surface-Mount Technology, kana kuti SMT. Izvi zvinobvumira kugadzirwa nekukurumidza uye nemazvo. Zvikamu zvinovharirwa zvachose munzvimbo uchishandisa nzira yekudziyisa inonyungudutsa simbi kuzvinhu zvinosungirirwa. Kupisa nekumanikidzwa zvinosunga zvikamu kunzvimbo dzekubatanidza pabhodhi dzinonzi solder pads. Chidimbu chimwe nechimwe chechiedza chinowanzo takura madiode rimwe chete kusvika matatu echiedza. Aya anowanzova matsvuku, girini, uye bhuruu. Ose anochengetwa mukati mebhokisi repurasitiki rimwe chete.

Kushanda Nekubudirira Kwekugadzira

Zvichienderana neruzivo rweindasitiri, kushandisa michina inongozvigadzira kugadzira mwenje ine maIC akabatanidzwa kwakabudirira zvikuru. Nzira iyi inoita kuti pave nekukwanisa kugadzira mwenje inopfuura 99.5%. Uku kuvandudzwa kukuru kupfuura 92% yemubereko unoonekwa mukudziyisa kwakajairika.

Mamodule aya epamusoro anokurumidzawo. Anogona kuchinja kupenya kwawo kana nguva yekupindura mumasekondi asingasviki zana. Kumhanya uku kunopfuura nyore nyore marongero akajairwa eanalog. Anoshandisa simba shoma nekuda kwehukuru hwawo hudiki. Mamodheru ane simba guru, akadai se5730, anoburitsa chiedza chinopenya chesimba rinoshandiswa. Anogona kuva nekushanda kwakanaka kunosvika 240 lumens pa watt.

Kuderera Kwekushanda Zvakanaka

Kunyange zvazvo chiedza chemazuva ano chiri chepamusoro-soro, chichiri kutarisana nemiganho yepanyama. Ungatarisira kuti kuisa magetsi akawanda muchiedza kuchaita kuti chiedza chiwedzere kupenya. Zvisinei, muchokwadi, huwandu hwechiedza chinogadzirwa pa watt imwe neimwe hunoderera sezvaunosunda magetsi akawanda. Chiitiko ichi chinonzi efficiency droop. Chikonzero chikuru chekurasikirwa uku mukushanda zvakanaka inzira chaiyo yemaatomu inonzi Auger recombination. Muchiitiko chakadaro, simba rinoparara mukati pane kuburitswa sechiedza.

Zvinhu Zvikuru zveKugadzira uye Zvinobuda Zvinoonekwa

Mwenje iyi inoshanduka-shanduka uye inouya muhukuru hwakasiyana-siyana. Mamodheru akajairika anosanganisira 2835, 3528, uye 5050. Nhamba idzi dzinongoreva saizi dzadzo dzemuviri mumamilimita. Semuenzaniso, 2835 zvinoreva saizi ye2.8 mm ne3.5mm. Nekuti zvinhu zvakawanda zvechiedza zvinoiswa mubhokisi rimwe chete, zvinoburitsa zviri nyore kubuda kwemavara akawanda kana RGB (Red, Green, Blue). Masisitimu emazuva ano ekudzora anobvumira kudzora chinhu chidiki chimwe nechimwe chakazvimiririra.

Dzinoshanda senzvimbo dzakanyanya kuzara dzechiedza kana nzvimbo dzechiedza. Izvi zvinoita kuti dzive dzakajeka zvikuru. Zvisinei, kana ukadzitarisa uri pedyo, unogona kuona madotsi echiedza uye pixelation. Mazhinji emwenje iyi anoparadzira mwenje wawo zvakanyanya, kazhinji pakati pekona ye140° ne160°. Zvisinei, mamwe mavhezheni akakosha anosundira chiedza kunze parutivi, akaenzana nebhodhi. Izvi zvinoshandiswa mumasikirini akatetepa zvakanyanya. Mwenje iyi iri nyore kugadzirisa. Kana bhero rimwe chete remwenje rikakundikana, unogona kutsiva chidimbu ichocho chete. Haufanire kurasa module yese.

Kuongorora Tekinoroji yeCOB LED

Mavakirwo emwenje yeCOB

Dhizaini yeCOB inoshandisa nzira yakasiyana neyekare. Pane kupa chiedza chimwe nechimwe nzvimbo dzacho uye ma leadframes, inonamira machipisi akawanda echiedza akajeka zvakananga pachigadziko. Inonyatsogona kubvisa kupisa, senge ceramic kana silicon carbide.

Zvinobvumira vagadziri kupa huwandu hwakanyanya hwemwenje zvichienzaniswa nemwenje yeSMD. Boka rese remachipisi rinofukidzwa nechikamu chimwe chete, chakapfava chephosphor yakagadzirwa. Inoshandura chiedza chebhuruu chisina kuchena kuita tembiricha cheruvara ruchena rwakafanana. Kunyangwe iine madiode akawanda, kugadzirwa kwemagetsi kwakareruka zvikuru. Inoshandisa nzira imwe chete yemagetsi nenzvimbo mbiri dzekubatanidza.

Tsanangudzo Yakakwirira uye Ruzivo rweKutarisira Kupisa

Zvichienderana neruzivo rweindasitiri, nzira iyi yekuisa zvakananga inobvumira kuti madonhwe madiki echiedza aiswe pedyo zvakanyanya. Mapitch (gap) epixel pakati pemadonhwe aya anogona kunge akanaka seP0.4. Kuswedera pedyo uku kwakanyanya kunodiwa pakugadzira 4K ne8K displays dzine ultra-high-definition.

Imwe pfungwa inoratidza mukana mukuru wekupisa. Nekuti machipisi anobatanidzwa zvakananga pachigadziko uchishandisa thermal glue, chipingamupinyi chinowedzera kudzivirira kupisa chinoderedzwa. Izvi zvinoita kuti kupisa kuende nekukurumidza uye zviri nyore kubva pachiedza uye kupinda muheat sink yekunze.

Hunhu hwekuona uye kunyaradzwa

Chimiro chemwenje iyi chinoita kuti ishande sechiedza chinopararira kupfuura madotsi ega ega. Inogadzira chiedza chakapfava, chakapfava chinobvisa mimvuri yakaoma zvachose. Inoita kuti chitarisiko che "madotsi" chemitsetse yemwenje yekare chisashande. Chiedza chakapfava chakanakira nzvimbo dzehunyanzvi nekuti chinoreruka pamaziso kunyangwe mushure mekushandiswa kwenguva refu.

Tekinoroji iyi yakabvumirawo kushandiswa kwemachipisi akakosha. Kuvandudzwa uku kunoita kuti chiedza chirambe chakajeka uye chichionekwa kunyangwe kana chikaonekwa kubva kumakona akanyanya, nekona yekuona yakafanana ye170 degrees.

Kugara kwenguva refu uye Kuvimbika

Dhizaini yacho yakasimba, yese-mu-imwe chete inopa dziviriro yakanaka kubva kunze. Mayunitsi aya anodzivirira zvakanyanya matambudziko emuviri akadai sejecha nemvura. Anowanzo uya nechiyero cheIP65 kusvika kuIP68. Nekuti machipisi acho akafukidzwa zvizere, kugona kwawo kutsungirira kukanganiswa kwakasimba kanosvika kashanu kupfuura mwenje yeSMD. Izvi zvinoita kuti avimbike zvikuru munzvimbo dzine vanhu vakawanda, dzine vanhu vakawanda.

Ruzivo rweindasitiri runoratidza kuti dzakavimbika zvakadii. Huwandu hwemayuniti anokundikana kubva pamiriyoni (Failure Rate kana ppm) emamodule aya hunowanzova pasi pe50 ppm. Kusiyana neizvi, mabhedhi emwenje eSMD akajairika anowanzo kundikana ne200 kusvika 500 ppm.

Tafura Yekuenzanisa Kubva Kumusoro Kuenda Kumusoro: COB LED vs SMD LED

Mashandisirwo Akanangana neTekinoroji yeSMD

Nguva Yekusarudza Tekinoroji yeSMD

Kana uchida kupenya kwakanyanya, kushanduka-shanduka, uye kushandisa mari shoma mupurojekiti yako yemwenje, mwenje wekuisa pamusoro (SMD) ndiwo nzira yakanaka yekushandisa.

● Kushandiswa Panze Nezviitiko: Dzinokwanisa kupenya zvakanyanya kupfuura 10,000+ nits. Izvi zvinoita kuti dzive nyore kushandisa pakushambadzira mabhodhi ekunze muzuva rakananga. Dzakanakirawo kurenda michina uye zviitiko zvepamoyo zvinoda kugadziriswa nguva nenguva. Ndidzo mhinduro yakakwana yekufamba-famba sezvo dzichigona kugadziriswa.

● Mhepo Nemari Yakawanda: Kana uchida mwenje wekushongedza, maSMD akanakira mwenje wekusimbisa hunyanzvi uye nzvimbo dzekaraoke (KTVs). Anokwanisa kugadzira mamirioni emavara achishandisa RGB mixing. Kune mapurojekiti akajairika, anopa musanganiswa wakakodzera wekushanda kwakajairika uye mutengo wakaderera wekutanga.

Ruzivo rweSMD LEDs

Pakusarudza mamodheru chaiwo, machipisi e3528 ndiwo anonyanya kudhura zvakanyanya kune vanoda ruvara rumwe chete. Zvisinei, kana uchida kugona kushandura mavara, machipisi e5050 ndiwo akanakisa. Kana purojekiti yako ichida kuvhenekerwa kwe360° pasi rose, unofanirwa kushandisa filaments dze LED dzakagadzirwa. Aya machipisi eSMD akajairika anoshanda nesimba shoma.

Mashandisirwo Akanangana neCOB Technology

Nguva Yokusarudza Tekinoroji yeCOB

Mwenje yeCOB ndiyo sarudzo yepamusoro-soro yenzvimbo dzebasa, kuratidzwa kwemifananidzo yepamusoro-soro, uye mabasa eindasitiri ane basa guru.

● Masikironi neZviratidzo zvePremium: Makamuri ekuparadzira nekutonga anoda tekinoroji yeCOB nekuti sosi yemwenje wepamusoro inopa mifananidzo "yemhando yepamusoro". Haamanikidze maziso. Mashopu ekutengesa epamusoro-soro anoashandisawo pakuratidza zvinhu zveumbozha. Anoshandisa nzvimbo isina musono uye nhema dzakadzika.

● Kushandiswa Kwemaindasitiri Nekune Hunhu Hwakanyanya: Pakushandiswa zvakanyanya, kugona kukuru kweCOB kutsungirira kupisa uye kusimba kunoita kuti ive yakakwana kune zvishandiso zvekunze zvirefu. Izvi zvinowanzo shandiswa mumwenje yemumugwagwa ine mwenje yepamusoro uye pasi pefekitori rinopisa. Pakuona, ndiyo yega sarudzo ine musoro yezviratidziro zve4K zvine resolution yepamusoro apo mipata yepixel haifanirwe kuonekwa nevanhu vakamira pedyo.

Ruzivo rweindasitiri rweCOB

Nyanzvi dzinoona tekinoroji yeCOB senzira yeramangwana yeindasitiri yemwenje nekuratidzira nekuti inoshanda sehwaro hwekugadzira chizvarwa chinotevera chemwenje usingaonekwe nemaziso. Ndiyo sarudzo yakanakisisa yemwenje yakakwirira. Dhizaini iyi inobvumira vagadziri kurongedza chiedza chakawanda muchinhu chidiki pasina kuderedza kunaka kwemwenje.

Mhedziso

Kusarudza pakati pematekinoroji maviri aya emwenje kunoenderana zvakanyanya nezvaunonyanya kukoshesa pabasa rako. Dhizaini yeSMD inoramba iriyo nzira yakasimbiswa yezviratidzo zvekutengeserana uye yekushongedza inochinja mavara. Yakanakirawo mapurojekiti asingadhuri mari yakawanda uko mwenje inofanira kunge iri nyore kugadzirisa.

Kune rumwe rutivi, COB ndiyo nzira iri nani yekudyara kana uchida kuti chitarisiko chionekwe zvakanaka. Inopa chiedza chisina musono, inogara kwenguva refu, uye ruzivo rwakapinza rwechidzitiro.

Paunenge uchisarudza, sarudza mugadziri anodzora nhanho yega yega yekugadzira. Kudzora maitiro ese kwakakosha kuti uve nechokwadi chekuti mhando inogara iripo. Izvi zvinonyanya kuitika panguva yedanho re LED encapsulation. Ungave uri kuvaka imba yekudzora yepamusoro ine zvidzitiro zvehunyanzvi zveCOB kana kuti uchida isingadhuri, inopenya zvakanyanya (high-lumen) Mitsetse yeSMD yekuvaka panze, Glamor Lighting inopa mhando dzakasiyana-siyana dzemhinduro dzakasimbiswa uye dzakachengetedzwa zviri pamutemo (dzakachengetedzwa nepatent).

Unogona kuongorora COB LED Strip Light nhevedzano kuti uwane chiedza chakatsetseka uye chinogara chiripo. Neimwe nzira, unogona kutarisa mwenje yedu ine machipisi ekudzora akavakirwa mukati anonzi Nguva dzose IC LED Strip series kuti pave nemwenje inoshanda zvakanaka yekutengeserana. Bata nesu Nhasi uno kuti uwane mutengo wakagadzirwa wakagadzirirwa zvakakwana zvinodiwa neunyanzvi hwako.

Mibvunzo Inowanzo bvunzwa

1. Ndeupi musiyano mukuru uripo pakati peSMD neCOB LEDs?

Marambi eSMD ane machipisi akasiyana-siyana akaiswa pabhodhi. Akanakira kuchinja mavara. Marambi eCOB anobatanidza machipisi akawanda pamwe chete pasi pejira rimwe chete. Izvi zvinogadzira panel yechiedza yakatsetseka, yakasimba isina madotsi anooneka.

2. Ndeipi mhando ye LED yakajeka uye inoshanda zviri nani?

Marambi eCOB anowanzo shandisa simba shoma. Anogadzira kupenya kwakawanda uku achishandisa simba shoma. Anodzorawo kupisa zviri nani. Zvisinei, marambi eSMD achiri kupa kupenya kwakasimba uye akakodzera kuratidzwa kwakajairika uye zviratidzo zvekunze.

3. Marambi aya ari nyore kugadzirisa here kana akatyoka?

Mwenje yeSMD iri nyore uye yakachipa kugadzirisa. Kana mwenje mudiki mumwe chete ukadzima, unongotsiva chidimbu ichocho. Mwenje yeCOB haigadziriswe zviri nyore. Kana pixel ikatyoka, unofanira kutsiva bhodhi rese. Zvisinei, mayuniti eCOB akavakwa zvakasimba uye anowanzogara kwenguva yakareba asati akundikana.