Ta yaya ake samar da zafin haɗin guntu na LED?
Dalilin da ya sa LED ɗin ya yi zafi shine saboda ƙarin ƙarfin lantarki ba duka ake canza shi zuwa makamashin haske ba, amma wani ɓangare nasa yana canza zuwa makamashin zafi.Ingancin haske na LED a halin yanzu shine 100lm / W kawai, kuma ƙarfin jujjuyawar wutar lantarki shine kusan 20 ~ 30%.Wato kusan kashi 70% na makamashin lantarki ana juya shi zuwa makamashin zafi.
Musamman, ƙarni na LED junction zafin jiki ya haifar da abubuwa biyu.
1. Ƙwararren ƙididdiga na cikin gida ba shi da yawa, wato, lokacin da aka sake haɗawa da electrons da ramuka, ba za a iya samar da photon 100% ba, wanda yawanci ana kiransa "leakage na yanzu", wanda ke rage yawan sake haɗuwa da masu ɗaukar kaya a yankin PN.Matsalolin da ake samu ta hanyar wutar lantarki shine ƙarfin wannan ɓangaren, wanda ke jujjuya shi zuwa makamashin zafi, amma wannan ɓangaren baya lissafin babban bangaren, saboda ingancin photon na ciki ya kusan kusan 90%.
2.The photon da aka samar a ciki ba za a iya fitar da su zuwa wajen guntu ba kuma a ƙarshe sun canza zuwa zafi.Wannan bangare shi ne babban sashi, domin a halin yanzu ingancin jimla da ake kira external yana da kusan 30% kawai, kuma yawancinsa yana canzawa zuwa zafi.Ko da yake hasken wutar lantarkin yana da ƙasa kaɗan, kusan 15lm/W kawai, yana canza kusan duk ƙarfin lantarki zuwa makamashin haske kuma yana haskaka shi.Saboda yawancin makamashin da ke haskakawa yana da infrared, ƙarfin haske yana da ƙasa sosai, amma yana kawar da matsalar sanyaya.Yanzu kuma mutane da yawa suna kula da zafi na LED.Wannan shi ne saboda lalacewar haske ko rayuwar LED tana da alaƙa kai tsaye da yanayin haɗin gwiwa.
Babban iko LED farin haske aikace-aikace da LED guntu zafi dissipation mafita
A yau, ana amfani da samfuran farar hasken LED a hankali a fannoni daban-daban.Mutane suna jin daɗin farin ciki mai ban mamaki da farin farin LED mai ƙarfi ya kawo kuma suna damuwa game da matsaloli masu amfani daban-daban!Da farko, daga yanayin babban iko LED farin haske kanta.Babban iko LED har yanzu yana fama da rashin daidaituwa na iskar haske, ɗan gajeren rayuwa na kayan rufewa, kuma musamman matsalar ɓarkewar zafi na kwakwalwan LED, wanda ke da wahalar warwarewa, kuma ba zai iya amfani da fa'idodin aikace-aikacen da ake tsammani na farin LED ba.Abu na biyu, daga farashin kasuwa na babban haske mai haske na LED.LED mai ƙarfi na yau har yanzu samfuran farin haske ne na aristocratic, saboda farashin kayan masarufi har yanzu yana da yawa, kuma har yanzu ana buƙatar inganta fasahar, don haka samfuran farin LED masu ƙarfi ba zai iya amfani da su ga duk wanda ke so. don amfani da su.Kamarm LED nuni.Bari mu rushe matsalolin da ke da alaƙa na babban ƙarfin wutar lantarki na LED.
A cikin 'yan shekarun nan, tare da ƙoƙarin ƙwararrun masana'antu, an gabatar da hanyoyin ingantawa da yawa don zubar da zafi na kwakwalwan LED masu ƙarfi:
Ⅰ.Ƙara yawan hasken da ke fitowa ta ƙara yankin guntu na LED.
Ⅱ.Ɗauki fakitin guntuwar LED ƙananan yanki da yawa.
Ⅲ.Canza kayan marufi na LED da kayan kyalli.
Don haka yana yiwuwa gabaɗaya inganta matsalar ɓarkewar zafi na samfuran fararen haske masu ƙarfi na LED ta hanyoyin uku na sama?A gaskiya ma, yana da ban mamaki!Da farko, ko da yake mun ƙara yankin guntu LED, za mu iya samun ƙarin haske mai haske (hasken da ke wucewa ta raka'a na lokaci) Yawan bim a kowane yanki shine hasken haske, kuma naúrar shine ml).Yana da kyau gaLED masana'antu.Muna fatan cimma tasirin hasken farin da muke so, amma saboda ainihin yanki ya yi girma, akwai wasu abubuwan da ba su da amfani a cikin tsarin aikace-aikacen da tsarin.
Don haka da gaske ba zai yiwu ba a magance matsalar babban ƙarfin wuta na farin haske mai zafi?Tabbas, ba zai yiwu a warware ba.Dangane da munanan matsalolin da ke haifar da haɓaka yankin guntu kawai, masu kera farin haske na LED sun haɓaka saman guntu mai ƙarfi ta LED ta hanyar ɗaukar kwakwalwan ƙananan ƙananan yanki na LED bisa ga ingantaccen tsarin lantarki da guntu-zuwa. tsarin don cimma 60lm./W babban haske mai haske da ƙarancin inganci tare da babban zafi mai zafi.
A gaskiya ma, akwai wata hanyar da za ta iya inganta yadda ya kamata a inganta matsalar zubar da zafi na kwakwalwan LED masu ƙarfi.Wato maye gurbin filastik ko plexiglass na baya tare da resin silicone don kayan marufi na farin haske.Maye gurbin kayan marufi ba kawai zai iya magance matsalar rashin zafi na guntuwar LED ba, amma kuma inganta rayuwar farin LED, wanda ke kashe tsuntsaye biyu da dutse daya.Abin da nake so in faɗi shi ne cewa kusan duk babban ƙarfin farin haske na samfuran LED kamar babban hasken farin haske ya kamata a yi amfani da silicone azaman kayan rufewa.Me yasa dole ne a yi amfani da gel silica azaman marufi a cikin LED mai ƙarfi yanzu?Domin silica gel yana ɗaukar ƙasa da 1% na haske na tsawon tsayi iri ɗaya.Duk da haka, yawan ɗaukar resin epoxy zuwa haske 400-459nm ya kai 45%, kuma yana da sauƙi don haifar da mummunar lalacewar haske saboda tsufa da ke haifar da dogon lokaci na wannan haske mai tsawon lokaci.
Tabbas, a cikin ainihin samarwa da rayuwa, za a sami matsaloli da yawa kamar zubar da zafi na manyan kwakwalwan haske na LED, saboda yawan aikace-aikacen farin haske mai ƙarfi na LED, mafi zurfin zurfi da matsaloli masu wahala. bayyana!Halayen kwakwalwan LED sune Maɗaukakin zafi yana haifar da ƙaramin ƙarami.Ƙarfin zafi na LED ɗin kanta yana da ƙananan ƙananan, don haka dole ne a gudanar da zafi a cikin sauri mafi sauri, in ba haka ba za a haifar da zafin jiki mai girma.Domin zana zafi daga guntu kamar yadda zai yiwu, an inganta da yawa akan tsarin guntu na LED.Don inganta yanayin zafi na guntu na LED da kanta, babban haɓakawa shine amfani da kayan da ake amfani da su tare da mafi kyawun yanayin zafi.
Hakanan za'a iya shigo da zafin fitilun LED mai saka idanu a cikin micro-controller
Don ingantaccen nau'i na ikon NTC, idan kuna son cimma ingantaccen ƙira, kuma hanya ce mai inganci don aiwatar da ingantaccen ƙirar aminci tare da MCU.A cikin aikin haɓakawa, ana iya rarraba matsayin tushen tushen hasken LED zuwa ko hasken ya kasance Ko an kashe shi ko a'a, tare da tsarin ma'anar hukunci game da faɗakarwar zafin jiki da ma'aunin zafin jiki, an gina ingantacciyar hanyar sarrafa hasken wutar lantarki mafi kyau. .
Misali, idan akwai gargadin zafin fitila, har yanzu yawan zafin jiki na samfurin yana cikin kewayon karɓuwa ta hanyar auna zafin jiki, kuma ana iya kiyaye hanya ta al'ada don ɓata yanayin zafin jiki ta dabi'a ta wurin dumama zafi.Kuma lokacin da gargaɗin ya sanar da cewa ma'aunin zafin jiki ya kai ga ma'auni don aiwatar da tsarin sanyaya aiki, dole ne MCU ta sarrafa aikin fan ɗin sanyaya.Hakazalika, lokacin da zafin jiki ya shiga yankin, injin sarrafawa yakamata ya kashe tushen hasken nan da nan, kuma a lokaci guda tabbatar da zafin jiki na 60 seconds ko 180 bayan an kashe tsarin.Lokacin da zazzabi na LED m-state haske module ya kai ga al'ada darajar, fitar da LED haske da kuma ci gaba da fitar da haske.
Lokacin aikawa: Nuwamba-09-2022