Maitiro Ekugadzirisa Dambudziko reKupisa Kupisa kweUV LED?

Kana iyo LED sosi yemwenje yakavhurwa, iyo P-N yekubatanidza nzvimbo mukati meiyo chip inotanga kushanda, kugadzira uye kuunganidza kupisa. Pese apo nyika inowana mamiriro akagadzikana, tembiricha inonzi tembiricha yejunction.

Zvakare, nekuti iyo chip yakavharirwa, kupisa kweiyo semiconductor hakugone kutariswa zvakananga panguva yekuyera maitiro. Nekuda kweizvozvo, kudziya kwepini conductor kunowanzo shandiswa kukanganisa mutsauko wetembiricha wekwakabva chiedza zvisina kunanga. Kudzikira kwetembiricha yekusangana kwechiedza, ndiko kuwedzera kwayo kupisa.

Kazhinji, zvinhu zvakasarudzirwa mwenje sosi semiconductor uye chimiro chekurongedza chaunotora chine chekuita nekupisa kwekupisa kwechiedza che LED sosi.

Zvishandiso zvinoshandiswa kune mwenje we LED sosi zvinowana imwe yemagetsi kuramba mukati nekunze. Hukuru hweizvi resistivity values ​​hunoratidza mwenje sosi yekubvisa kupisa kwekugona kusvika pamwero wakati.

Dambudziko Rokubvisa Kupisa

Kupisa kupisa imhando yekubvisa simba (energy transfer). Izwi rekuti "energy dissipation" rinoreva simba rakapedzwa nekuda kwekusiyana kwetembiricha uye kusashanda zvakanaka.

Kupisa kunobviswa kuburikidza nemaitiro matatu:

·  Convection inzira yekupisa nekuyerera kwemvura. Ovheni ye convection, semuenzaniso, inoshandisa mhepo (inodziya, mvura inofamba) kutumira kupisa.

·  Conduction ndiyo nzira iyo kupisa kunobviswa mukati mechinhu chimwe uye pamwe mune chimwe chinhu chingave chakabatana nechinhu chinopisa. Chigadziko chekubikira chemagetsi chinopisa nekupikiswa nemagetsi mumwe muenzaniso.

·  Radiation ndiyo nzira iyo kupisa kunoparadzirwa kuburikidza nemagetsi emagetsi. Iwa microwave oven muenzaniso wekupisa kupisa.

·  Kushandisa iyo yakakodzera insulation yechishandiso kunoderedza kurasikirwa kwekupisa uye mutengo wayo uku uchiwedzerawo kushanda nesimba uye kuchengetedzeka.

Nzira yekugadzirisa sei dambudziko rekupisa kupisa

Kuti utore iyo yakanyanya dhigirii yeUV-LED sosi yemwenje inoramba iri pazasi pekukosha kwechikumbaridzo chenguva yakawedzerwa pane ambient tembiricha, zvakakosha kuita yakachengeteka uye yakavimbika mashandiro emafuta kune UV-LED sosi yemwenje. UV-LED mwenje sosi yekupisa manejimendi inogona kupatsanurwa kuita maviri zvinongedzo. Chip kurongedza zvinhu uye maitiro ekurongedza ari kuvandudzwa muchiedza sosi yekugadzira chikamu kuvandudza kupisa kwekupisa.

Nekudaro, kuwedzera ma radiator ekunze mumainjiniya maapplication anogona kuvandudza zvakanyanya kupisa kupisa kuita. Iyo radiator chimiro chakasiyana, kusanganisira fin mhando, kupisa kupisa mhando, simba rekugovera ndiro mhando, uye micro-grooves mhando, pakati pevamwe.

Kuti uwane kupisa kwakanyanya kweiyo UV-LED sosi yemwenje inoramba iri pazasi pekukosha kwechikumbaridzo kwenguva yakareba pasi petembiricha yakadzikama, zvakakosha kubatanidza yakachengeteka uye yakavimbika tembiricha kutonga kweiyo Ultraviolet mwenje sosi.

UV-LED mwenje sosi kupisa kupisa disipation dhizaini inogona kupatsanurwa kuita chip level, yekurongedza level, uye system level. Kunobva chiedza mukugadzira nzira inosarudza maviri ekutanga. Chidzidzo chebepa iri chiri pachirongwa chekupisa kupisa nyaya, ndiko kuti, kugadzirisa kuvakwa kweiyo Ultraviolet light source's yekubatsira kupisa sink.

Chii chinonzi LED junction tembiricha uye nei zvine basa?

Junction tembiricha panzvimbo iyo iyo LED inofa inosangana nezvayakaiswa pairi. Iyi junction kazhinji ine tembiricha huru yemudziyo, zvichiita kuti kukosha kwayo kuve chiratidzo chakanaka chekupisa kupisa. Conducive heat channels akavakwa mumapakeji emazuva ano e LED kuendesa kupisa kubva pamharadzano kuenda kune solder saiti. Iyo LED pasuru yekudyidzana nePCB kana yakaparadzana heatsink ndipo panowanikwa solder.

Iko mukati mekushisa kupisa kwe LED kunoshanda seyero yekushanda kwemukati kupisa nzira. Nekupisa tichitaura, hunhu hwe LED hunowedzera nekudzikira kwemukati tembiricha. Kukosha kwehuni hwekupisa hunofanirwa kuwanikwa neanogadzira mainjiniya paanenge achigadzira chigadziriso che LED kubva kune thermal management maonero. CFD solvers ichashandisa iyi nhamba kunyatsoverenga tembiricha ye LED uye kutarisa kana mudziyo waenda pamusoro pemugadziri-wakakurudzirwa wepamusoro muganho. Junction tembiricha muma LED emazuva ano anowanzo kusvika 100°C kana kupfuura. Kukosha kwayo kunokanganisa tembiricha renji, mwero wekutamisa kupisa pakati peiyo LED dunhu nenzvimbo yakatenderedza, uye chip simba rekushandisa.

Thermal Design Factors

Chero girobhu re LED rinofanirwa kugadzirwa kuti rideredze kugadzikana kwekushisa kwepamusoro kubva ku LED kuenda kumhepo yakatenderedza kuitira kuti ma LED agare achitonhorera. Conduction, convective, uye thermal radiation ndiyo Mbiri  mhando dzekupisa kupisa dzinofanirwa kuverengerwa uye kugadziridzwa panguva yese yekugadzira dhizaini dhizaini.

1. LED upamhi uye kugadzirisa

Kugadzira madiki madhizaini e LED, vagadziri vanowanzoshuvira kupfupisa chinhambwe pakati peLed paPCB. Asi izvi zvichaguma nepamusoro-soro yemagetsi emagetsi, izvo zvichawedzera kupisa kwe LEDs.

Vagadziri veUV LED gara uchipa chinhambwe chakataurwa pakati pemaLED uye tsanangura kuwedzera tembiricha inogona kutarisirwa kana chinhambwe ichi chapfupikiswa nehuwandu hwakati. Zvidzidzo pa LED board marongero zvakaratidza kuti homogeneous uye symmetrical chip marongero anopa huwandu hwakafanana hwekupisa kwekubuda kungave rectangle, hexagon, kana denderedzwa.

2. Kusarudza LED Module

Direct in-line packaging (DIP) maLED uye matsva akawanda machipisi pamabhodhi (MCOB) maLED angori mashoma emhando dzakasiyana dzemaLED aripo. DIP ma LED anoshandiswa zvakanyanya sezviratidzo uye kuratidza pamidziyo yemumba. Vanosiyaniswa nechimiro chavo chakaita bara.

SMD LEDs square semiconductors iyo inogona kuburitsa chiedza pamusoro pese RGB spectrum.

Kupi kwekutenga emhando yepamusoro UV LED

Mugadziri wekugadzira uye ane ruzivo, Zhuhai Tianhui Electronic Co ., Ltd. yakatarisana neUV LEDs, mapurojekiti makuru, UV LED kurongedza, uye yakabatanidzwa dunhu kugadzirwa kweruminescence yakakwirira, kushanda kwepamusoro, kupenya kwechiedza, uye hupenyu hurefu. Semumwe weanotungamira akawandisa Uv akatungamirira vagadziri  muChina, tinoisa mari yepamusoro pakuzadzisa zvinodiwa nevatengi vedu uye takazvipira kupa sevhisi yepamusoro. Isu tinopa vatengi zvakanakisa Mhinduro UV LED , zvigadzirwa, uye masevhisi. Isu tinopa UVA, UVB, uye UVC zvigadzirwa zvine pfupi kusvika kureba wavelengths pamwe nekuzara uv led diode LED specs ine yakaderera kune yakakwirira simba. Imwe yevakuru vekugadzira UV LED vagadziri, Zhuhai Tianhui Electronic Co., Ltd., inotarisa paUVC, UVB, uye UVA disinfection uye sterilization. Zvinhu zvacho zvinoshandiswa zvakanyanya.