Igihe cyose tuvugana n'abakiriya, ijambo rimwe rikunze kuvugwa: garanti. Buri mukiriya ashaka igihe gitandukanye cya garanti, kuva ku myaka ibiri kugeza ku myaka itatu, naho bamwe bashaka imyaka itanu.
Ariko mu by’ukuri, mu bihe byinshi, abakiriya ubwabo bashobora kutamenya aho iki gihe cy’ingwate gituruka, cyangwa bagakurikira imbaga y’abantu bakibwira ko amatara ya LED agomba gushingiraho igihe kirekire.
Uyu munsi, ndakujyana mu isi ya LED kugira ngo umenye uko ubuzima bw'amatara busobanurwa kandi bugacirwa urubanza.
Mbere na mbere, iyo bigeze ku bijyanye n'amatara ya LED, mu bijyanye n'isura yayo, dushobora kubona mu kanya gato ko atandukanye n'amatara gakondo, kuko hafi ya yose afite imiterere yihariye -ikigega gishyushya.
Ibikoresho bitandukanye byo gushyushya ntibigamije ubwiza bw'amatara ya LED, ahubwo ni ukugira ngo LED zikore neza kurushaho.
Hanyuma abakiriya bazibaza impamvu amasoko y'urumuri ya kera yakoreshaga radiateri gake cyane, ariko mu gihe cya LED hafi ya amatara yose akoresha radiateri?
Kubera ko amasoko y'urumuri ya kera yashingiraga ku mirasire y'ubushyuhe kugira ngo itange urumuri, nk'amatara ya tungsten filament, ashingira ku bushyuhe kugira ngo atange urumuri, bityo ntibatinye ubushyuhe. Imiterere y'ibanze ya LED ni semiconductor PN ihuriro. Iyo ubushyuhe buri hejuru gato, imikorere y'imikorere izagabanuka, bityo gukwirakwiza ubushyuhe ni ingenzi cyane kuri LED.
Ubwa mbere, reka turebe imiterere n'igishushanyo mbonera cya LED
Inama: Chip ya LED izatanga ubushyuhe iyo ikora. Ubushyuhe bw'ihuriro ryayo rya PN imbere tubwita ubushyuhe bw'ihuriro (Tj).
Kandi, icy'ingenzi kurushaho, ubuzima bw'amatara ya LED bufitanye isano rya bugufi n'ubushyuhe bw'aho ahurira.
Igitekerezo tugomba gusobanukirwa: Iyo tuvuze ku buzima bwa LED, ntabwo bivuze ko idakoreshwa na gato, ariko iyo urumuri rwa LED rugeze kuri 70%, muri rusange dutekereza ko 'ubuzima bwayo bwarangiye'.
Nkuko bigaragara ku ishusho iri hejuru, niba ubushyuhe bw'aho itara rihurira bugenzurwa kuri dogere selisiyusi 105, ubwo urumuri rw'itara rya LED ruzagabanuka kugeza kuri 70% iyo itara rya LED rikoreshejwe amasaha agera ku 10.000; kandi niba ubushyuhe bw'aho itara rihurira bugenzurwa kuri dogere selisiyusi 60, igihe cyaryo cyo gukora kizaba amasaha agera ku 100.000 + isaha, urumuri ruzagabanuka kugeza kuri 70%. Ubuzima bw'itara bwiyongeraho inshuro 10.
Mu buzima bwa buri munsi, icyo dukunze guhura nacyo ni uko igihe LED imara ni amasaha 50.000, mu by'ukuri ni amakuru iyo ubushyuhe bw'aho ihurira bugenzurwa kuri dogere selisiyusi 85.
Kubera ko ubushyuhe bw'amatara ya LED bufite uruhare runini mu buzima bw'amatara ya LED, ni gute wagabanya ubushyuhe bw'amatara? Ntugahangayike, reka tubanze turebe uburyo itara rikuraho ubushyuhe. Nyuma yo gusobanukirwa uburyo bwo gukwirakwiza ubushyuhe, uzamenya uburyo bwo kugabanya ubushyuhe bw'amatara.
Ni gute amatara akuraho ubushyuhe?
Ubwa mbere, ugomba kumenya uburyo butatu bw'ibanze bwo kohereza ubushyuhe: gukwirakwiza ubushyuhe, gukwirakwiza ubushyuhe mu kirere, n'imirasire.
Inzira nyamukuru zo kohereza radiator ni ugukwirakwiza ubushyuhe mu buryo bunyura mu buryo bunyura mu buryo busanzwe, hamwe no gukwirakwiza ubushyuhe mu buryo bunyura mu buryo bunyura mu buryo busanzwe.
Amahame shingiro yo kohereza ubushyuhe:
Uburyo bwo kuyobora: Uburyo ubushyuhe bunyura mu kintu buva mu gice gishyushye bujya mu gice gikonje.
Ni ibihe bintu bigira ingaruka ku gushyuha?
① Uburyo ibikoresho bikwirakwiza ubushyuhe bitwara ubushyuhe mu buryo bushyushye
② Ubudahangarwa bw'ubushyuhe buterwa n'imiterere y'ubushyuhe
③ Imiterere n'ingano y'ibikoresho bitwara ubushyuhe
Imirasire: Ibimenyetso by'ibintu bishyushye cyane bishyushya biturutse hanze.
Ni ibihe bintu bigira ingaruka ku mirasire y'ubushyuhe?
① Ubudahangarwa bw'ubushyuhe bw'ibidukikije n'ubushyuhe (cyane cyane hibandwa ku mwuka)
② Ibiranga imirasire y'ubushyuhe ubwayo (muri rusange amabara yijimye arabagirana cyane, ariko mu by'ukuri iyo imirasire ikwirakwira ntabwo ari ingenzi cyane, kuko ubushyuhe bw'itara butari hejuru cyane kandi imirasire ntabwo ikomeye cyane)
Konvetisiyo: Uburyo bwo kohereza ubushyuhe binyuze mu gutemba kwa gaze cyangwa amazi.
Ni ibihe bintu bigira ingaruka ku gushyuha kw'ubushyuhe?
① Urujya n'uruza rwa gazi n'umuvuduko wayo
② Ubushobozi bwihariye bw'ubushyuhe, umuvuduko w'amazi n'ingano yawo
Mu matara ya LED, igikoni cy'ubushyuhe ni cyo gitwara igice kinini cy'ikiguzi cy'itara. Kubwibyo, ukurikije imiterere ya radiator, niba ibikoresho n'imiterere bidahagije, itara rizagira ibibazo byinshi nyuma yo kugurisha.
Ariko, mu by’ukuri, ibi ni ibisoza gusa, kandi ubu ni cyo kintu cy’ingenzi.
Nk'umuguzi, ni gute wamenya niba uburyo bwo gutwika ubushyuhe bw'itara ari bwiza cyangwa atari bwiza?
Uburyo bw'umwuga cyane birumvikana ko ari ugukoresha ibikoresho by'umwuga mu gupima ubushyuhe bw'amahuriro y'imihanda.
Ariko, ibikoresho nk'ibi by'umwuga bishobora kuba bibi ku bantu basanzwe, bityo icyo dusigaranye ni ugukoresha uburyo busanzwe bwo gukora ku itara kugira ngo twumve ubushyuhe.
Hanyuma havuka ikibazo gishya: Ese ni byiza kumva ushyushye cyangwa ntubigire?
Iyo radiateri ishyushye iyo uyikozeho, ntabwo iba ari nziza rwose.
Iyo radiateri ishyushye cyane, sisitemu yo gukonjesha igomba kuba mbi. Radiateri nta bushobozi buhagije bwo gukwirakwiza ubushyuhe kandi ubushyuhe bwa chip ntibushobora gukurwaho mu gihe; cyangwa ahantu hakoreshwa ubushyuhe neza ntabwo hahagije, kandi hari inenge mu miterere y'inyubako.
Nubwo itara ritameze neza, ntabwo ari ngombwa ko riba ryiza.
Iyo itara rya LED rikora neza, radiateri nziza igomba kuba ifite ubushyuhe buri hasi, ariko radiateri ikonjesha si ngombwa ko iba nziza.
Iyi chip ntabwo itanga ubushyuhe bwinshi, itwara neza, igabanya ubushyuhe buhagije, kandi ntiyumva ishyushye cyane mu ntoki. Iyi ni sisitemu nziza yo gukonjesha, "ikibi" cyonyine ni uko ari ugupfusha ubusa ibikoresho.
Iyo hari imyanda munsi y’ubutaka kandi nta kintu gihuye neza n’aho ubushyuhe buturuka, ubushyuhe ntibuzavamo kandi buzarundanya kuri chip. Ntabwo gishyushye ukoresheje iyo ukozeho hanze, ariko chip imbere iba ishyushye cyane.
Aha, ndagira ngo ntange inama ku buryo bw'ingirakamaro - "uburyo bwo kumurikira igice cy'isaha" kugira ngo hamenyekane niba ubushyuhe bushobora gushonga neza.
Icyitonderwa: "Uburyo bwo kumurika igice cy'isaha" bukomoka ku ngingo
Uburyo bwo kumurika igice cy'isaha:Nkuko twabivuze mbere, muri rusange uko ubushyuhe bw'amatara ya LED bwiyongera, urumuri ruzagabanuka. Hanyuma, igihe cyose dupimye impinduka mu rumuri rw'itara rimurika ahantu hamwe, dushobora kwemeza impinduka mu bushyuhe bw'amatara.
Ubwa mbere, hitamo ahantu hatabangamiwe n'urumuri rwo hanze hanyuma ucane itara.
Umaze gucana, fata ako kanya igipimo cy'urumuri hanyuma ugipime, urugero nk'urugero 1000 lx.
Guma aho itara n'icyuma gipima urumuri bitahindutse. Nyuma y'igice cy'isaha, koresha icyuma gipima urumuri kugira ngo wongere upime. 500 lx bivuze ko urumuri rwagabanutseho 50%. Imbere harashyushye cyane. Iyo ukore ku gice cyo hanze, biracyari byiza. Bivuze ko ubushyuhe butarasohoka. Itandukaniro.
Niba agaciro kapimwe ari 900 lx kandi urumuri rukagabanukaho 10% gusa, bivuze ko ari amakuru asanzwe kandi ko ubushyuhe bushobora gukwirakwira neza cyane.
Uburyo bwo gukoresha "uburyo bwo kumurika igice cy'isaha": Turagaragaza umurongo uhinduka w'ubushyuhe bw'urumuri rwa "luminous flux VS junction" w'udupira twinshi dukoreshwa cyane. Duhereye kuri uyu murongo, dushobora kubona umubare w'amatara yagabanutse, kandi dushobora kumenya mu buryo butaziguye umubare w'amatara yazamutseho dogere selisiyusi.
Inkingi ya mbere:
Kuri chip ya OSRAM S5 (30 30), urumuri rwagabanutseho 20% ugereranije na 25°C, kandi ubushyuhe bw'aho ihuriro ry'amakuru bwarenze 120°C.
Inkingi ya kabirio:
Kuri chip ya OSRAM S8 (50 50), urumuri rwagabanutseho 20% ugereranije na 25°C, kandi ubushyuhe bw'aho ihuriro ry'amakuru bwarenze 120°C.
Inkingi ya gatatu:
Kuri chip ya OSRAM E5 (56 30), urumuri rwagabanutseho 20% ugereranije na 25°C, kandi ubushyuhe bw'aho ihuriro ry'amakuru bwarenze 140°C.
Inkingi ya kane:
Kuri chip yera ya OSLOM SSL 90, urumuri ruri hasi ho 15% ugereranyije n'ubushyuhe buri kuri 25°C, kandi ubushyuhe bw'aho ihuriro ry'amakuru bwarenze 120°C.
Inkingi ya gatanu:
Chip ya Luminus Sensus Serise, urumuri rwagabanutseho 15% ugereranije na 25℃, kandi ubushyuhe bw'aho ihuriro ry'amakuru bwarenze 105℃.
Nkuko bigaragara ku mashusho ari hejuru, iyo urumuri mu gihe cy'ubushyuhe rugabanutseho 20% nyuma y'igice cy'isaha ugereranije n'igihe cy'ubukonje, ubushyuhe bw'aho ihuriro ry'ibikoresho buzaba bwarenze urugero rw'ubworoherane bwa chip. Muri make, sisitemu yo gukonjesha ntabwo yujuje ibisabwa.
Birumvikana ko iyi ari yo ngero nyinshi, kandi byose bifite ibidasanzwe, nk'uko bigaragara ku ishusho:
Birumvikana ko kuri za LED nyinshi, dushobora gukoresha uburyo bwo kumurika mu gihe cy'iminota 30 kugira ngo tumenye niba ari nziza cyangwa atari nziza mu gihe cy'igabanuka rya 20%.
Wize? Iyo uhisemo amatara mu gihe kizaza, ugomba kwitondera. Ntushobora kureba gusa uko amatara asa, ahubwo ushobora no gukoresha amaso yawe atyaye kugira ngo uhitemo amatara.
Igihe cyo kohereza: Gicurasi-24-2024
