Kugereranya ubwoko 5 bwUBUSHINJACYAHA bwo kumurika LED

Kugeza ubu, ikibazo kinini cya tekiniki ya LED yamurika ni ikibazo cyo gukwirakwiza ubushyuhe

Gukwirakwiza ubushyuhe buke biganisha kuri LED itanga amashanyarazi hamwe na capacitori ya electrolytike, byahindutse umwanya muto wo kurushaho guteza imbere amatara ya LED, nimpamvu yo gusaza imburagihe zituruka kumatara ya LED.
Muri gahunda yamatara ukoresheje urumuri rwa LV LED, kubera ko urumuri rwa LED rukora mumashanyarazi make (VF = 3.2V), amashanyarazi menshi (IF = 300 ~ 700mA) leta ikora, ubushyuhe burakomeye cyane, n'umwanya wa gakondo amatara aragufi kandi ni agace gato.Biragoye ko radiator ikwirakwiza ubushyuhe vuba.Nubwo hashyizweho gahunda zitandukanye zo gukwirakwiza ubushyuhe, ibisubizo ntibishimishije, kandi byabaye ikibazo kidakemuka kumatara ya LED.Gushakisha byoroshye-gukoresha, ubushyuhe bwumuriro, hamwe nigiciro gito cyo gukwirakwiza ubushyuhe burigihe munzira.

Kugeza ubu, nyuma yumucyo wa LED umaze gukoreshwa, hafi 30% yingufu zamashanyarazi zihinduka ingufu zumucyo, naho ibindi bigahinduka ingufu zubushyuhe.Kubwibyo, ni tekinoroji yingenzi yuburyo bwa LED itara ryohereza hanze ingufu nyinshi zubushyuhe vuba bishoboka.Ingufu z'ubushyuhe zigomba gukwirakwizwa binyuze mu gutwara ubushyuhe, guhuza ubushyuhe n'imirasire y'ubushyuhe.Gusa nukwohereza ibicuruzwa hanze vuba bishoboka ubushyuhe bwa cavity mumatara ya LED buragabanuka neza, amashanyarazi arashobora gukingirwa gukorera ahantu harambye cyane, hamwe no gusaza imburagihe bituruka kumatara ya LED kubera igihe kirekire -imikorere yubushyuhe bwo hejuru irashobora kwirindwa.

Ubushyuhe bwo gukwirakwiza amatara ya LED

Nukuri kuberako LED itanga isoko ubwayo idafite imirasire yimirasire na ultraviolet, kubwibyo urumuri rwa LED ubwabwo ntirukora umurimo wo gukwirakwiza imirasire.Imirasire igomba kugira imirimo yo gutwara ubushyuhe, guhuza ubushyuhe hamwe nimirasire yubushyuhe.
Imirasire iyo ari yo yose, usibye kuba ishobora gutwara vuba ubushyuhe buturuka ku bushyuhe bugana hejuru ya radiatori, ahanini bushingiye kuri convection hamwe nimirasire kugirango ikwirakwize ubushyuhe mu kirere.Gutwara ubushyuhe bikemura gusa uburyo bwo guhererekanya ubushyuhe, mugihe ubushyuhe bwo gukora aribikorwa nyamukuru bya radiator.Imikorere yo gukwirakwiza ubushyuhe igenwa ahanini nubushuhe bwo gukwirakwiza ubushyuhe, imiterere, hamwe nubushobozi bwimbaraga za convection, kandi imirasire yubushyuhe ninshingano zifasha gusa.
Muri rusange nukuvuga, niba intera iva mubushyuhe kugeza hejuru yubushyuhe butarenze 5mm, noneho mugihe cyose ubushyuhe bwumuriro bwibikoresho burenze 5, ubushyuhe burashobora gukwirakwira, naho ubundi ubushyuhe bukagabanuka. bigomba kuba byiganjemo ubushyuhe bwumuriro.
Amashanyarazi menshi ya LED aracyakoresha amashanyarazi make (VF = 3.2V), amashanyarazi menshi (IF = 200-700mA) amatara ya LED.Bitewe nubushyuhe bwinshi mugihe cyo gukora, aluminiyumu ivanze hamwe nubushyuhe bwo hejuru bugomba gukoreshwa.Mubisanzwe hariho imirasire ya aluminiyumu, imishwarara ya aluminiyumu, hamwe na kashe ya aluminiyumu.Imirasire ya aluminiyumu ni tekinoroji yibice bipfa.Amazi ya zinc-umuringa-aluminiyumu asukwa ku cyambu cyo kugaburira imashini ipfa, hanyuma agapfa-guterwa na mashini yo gupfa kugirango itere imishwarara isobanurwa nububiko bwateguwe mbere.

Gupfa gushiramo aluminiyumu

Igiciro cy'umusaruro kirashobora kugenzurwa, kandi ibyuma bisohora ubushyuhe ntibishobora gukorwa neza, bigatuma bigorana ahantu hashobora gukwirakwizwa.Ibikoresho bisanzwe bikoreshwa mu gupfunyika amatara ya LED ni ADC10 na ADC12.

Amashanyarazi ya Aluminiyumu

Amazi ya aluminiyumu asohoka binyuze mu rupfu rutajegajega, hanyuma akabari kaciwemo imirasire yuburyo bukenewe mugukora, kandi igiciro cyo gutunganya kiri hejuru.Gukonjesha gukonjesha birashobora gukorwa cyane, kandi ahantu hagabanijwe ubushyuhe bwagutse kurwego runini.Iyo gukonjesha gukonje gukora, guhumeka ikirere guhita bikorwa kugirango ikwirakwize ubushyuhe, kandi ingaruka zo gukwirakwiza ubushyuhe nibyiza.Ibikoresho bikoreshwa cyane ni AL6061 na AL6063.

Ikimenyetso cya Aluminium ubushyuhe

Nugukubita no kuzamura ibyuma hamwe na aluminiyumu ya plaque ukoresheje imashini n'imashini kugirango ubigire imirasire imeze nkigikombe.Imbere ninyuma ya radiatori zashyizweho kashe biroroshye, kandi ahantu ho gukwirakwiza ubushyuhe ni buke kubera kubura amababa.Ibikoresho bikoreshwa cyane muri aluminiyumu ni 5052, 6061, na 6063. Ubwiza bwibice bya kashe ni bito kandi igipimo cyo gukoresha ibikoresho ni kinini, kikaba igisubizo gito.
Gutwara ubushyuhe bwa aluminium alloy radiator ni byiza, kandi birakwiriye cyane ko uhinduranya amashanyarazi uhoraho.Kugirango uhindurwe udahoraho-amashanyarazi, birakenewe gutandukanya AC na DC, amashanyarazi menshi hamwe n’amashanyarazi make binyuze mumiterere yamatara kugirango batsinde icyemezo cya CE cyangwa UL.

Amashanyarazi ya aluminiyumu yubatswe

Ni ubushyuhe butwara ubushyuhe bwa plastike ya aluminiyumu ya radiator.Amashanyarazi ya plasitiki yubushyuhe hamwe nubushyuhe bwa aluminiyumu bikozwe mumashini itera inshinge icyarimwe, kandi ubushyuhe bwa aluminiyumu ikoreshwa nkigice cyashizwemo kandi kigomba gutunganywa mbere.Ubushyuhe bwurumuri rwa LED rwimurirwa vuba muri plastiki itwara ubushyuhe binyuze mumashanyarazi ya aluminiyumu, kandi plastiki itwara amashyuza ikoresha amababa yayo menshi kugirango igabanye ubushyuhe bwikirere, kandi ikoresha ubuso bwayo kugirango imurikire igice cyubushyuhe.
Imirasire ya aluminiyumu ikozwe muri plastiki muri rusange ikoresha amabara yumwimerere ya plastiki itwara ubushyuhe bwumuriro, umweru numukara, hamwe na plastiki yumukara wa plastike yometse kuri aluminiyumu bifite ingaruka nziza zo gukwirakwiza imishwarara.Amashanyarazi ya plasitiki ni ibikoresho bya termoplastique.Amazi, ubucucike, ubukana n'imbaraga z'ibikoresho biroroshye kubumba inshinge.Ifite imbaraga zo guhangana nubukonje nubushyuhe bwumuriro hamwe nubwiza buhebuje.Emissivitike ya plastiki itwara ibintu neza iruta iy'ibikoresho bisanzwe.
Ubucucike bwa plastiki itwara ubushyuhe ni buto 40% ugereranije nubwa aluminiyumu na ceramique bipfa, kandi uburemere bwa aluminiyumu yometse kuri plastike burashobora kugabanuka hafi kimwe cya gatatu kumiterere imwe ya radiator;ugereranije na radiyo zose za aluminium, igiciro cyo gutunganya ni gito, ukwezi gutunganyirizwa ni kugufi, kandi ubushyuhe bwo gutunganya ni buke;Ibicuruzwa byarangiye ntabwo byoroshye kumeneka;imashini itanga imashini itanga imashini irashobora gukora imiterere itandukanye no gukora amatara.Imirasire ya aluminiyumu yuzuye plastike ifite imikorere myiza kandi iroroshye gutambutsa amabwiriza yumutekano.

Amashanyarazi menshi yubushyuhe bwa plastike

Imirasire yumuriro mwinshi wa plastike yateye imbere vuba aha.Imirasire yumuriro mwinshi wa plasitike ni radiatori yose.Ubushyuhe bwumuriro bwikubye inshuro icumi kurenza plastiki zisanzwe, bugera kuri 2-9w / mk.Ifite ubushyuhe bwiza nubushyuhe bwimirasire.;Ubwoko bushya bwo kubika no gukwirakwiza ubushyuhe bushobora gukoreshwa mumatara atandukanye, kandi burashobora gukoreshwa muburyo butandukanye bwamatara ya LED kuva 1W kugeza 200W.

Kwishyira hamwe gufotora module ubushyuhe bwo gukwirakwiza

Uhujije hamwe nuburyo butatu bwo gupakira ibintu bya K-COB isoko yumucyo hamwe nicyiciro cyo kwishima cyahinduye tekinoroji yo kugenzura ubushyuhe, module ihuriweho hamwe.Umuringa utagira ogisijeni udafite umuringa ukoreshwa nkibikoresho fatizo, kandi coefficient de transfert irashobora kugera kuri 300.000 w / mk, ikaba ari yo hejuru kwisi.Ibikoresho byihuta cyane, tekinoroji yatanzwe muburyo bwubushyuhe bwa plaque, hamwe nubushuhe bwihariye bwubushuhe bufite imbaraga zikomeye zumuriro nubushyuhe bwo gukwirakwiza ubushyuhe, bigatuma itara rimara ubuzima burebure hamwe nibyiza byubunini n'uburemere buke.Ubushyuhe bw'isoko yumucyo bwimurwa byihuse kuri buri cyuma gishyuha kugirango gikore neza ubushyuhe bwumuriro hamwe nibidukikije, kugirango bigere ku gukonjesha byihuse, bihwanye na miniature yumuyaga hamwe na chip ya LED.

K-COB LED CHIPS

Hamwe na tekinoroji ya tekinoroji ya tekinoroji ya soko yumucyo ubwayo, amasoko abiri yingenzi yubushyuhe bwumucyo wa LED, chip ya LED hamwe numuyoboro nyamukuru wa fosifori ceramic, ziratandukanye.Gushyira hanze, kandi binyuze muburyo bukwiye bwa chip, ibintu byo guhuza ubushyuhe birashobora kwirindwa neza, bityo bikagabanya neza ubushyuhe bwa chip, kandi tekinoroji ya K-COB yamashanyarazi yatezimbere, bityo bikarushaho kunoza imikorere nubuzima bwurumuri rwa LED. isoko.

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Igihe cyo kohereza: Werurwe-10-2022
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