Hupenyu hwemidziyo yemagetsi
Zvakaoma kuratidza iyo chaiyo yehupenyu kukosha kwechimwe chinhu chemagetsi chisati chatadza, zvisinei, mushure mekutadza kwechikamu chezvigadzirwa zvemagetsi zvigadzirwa zvatsanangurwa, huwandu hwehupenyu hunoratidza kuvimbika kwayo hunogona kuwanikwa, senge avhareji yehupenyu. , hupenyu hwakavimbika, hupenyu hwepakati hunhu hupenyu, nezvimwe.
(1) Avhareji yehupenyu μ: inoreva avhareji yehupenyu hwebhechi rezvigadzirwa zvemagetsi.
(2) Hupenyu hwakavimbika T: inoreva nguva yebasa yakaitika kana kuvimbika R (t) kwebheti rezvigadzirwa zvemagetsi zvinodonha kusvika y.
(3) Upenyu hweMedhia: hunoreva hupenyu hwechigadzirwa apo kuvimbika R (t) kuchava 50%.
(4) Hunhu hwehupenyu: hunoreva kuvimbika kwechigadzirwa R (t) chakaderedzwa kusvika
1 / e awa yehupenyu.
4.2, hupenyu hwe LED
Kana iwe usingafungi nezvekukundikana kwemagetsi uye kutyaira, hupenyu hwe LED hunoratidzwa mukuora kwayo kwechiedza, ndiko kuti, nekufamba kwenguva, kupenya kunowedzera kusviba uye kusviba kusvika pakupedzisira kudzima. Kazhinji inotsanangurwa kuora 30% yenguva sehupenyu hwayo.
4.2.1 Kuora kweChiedza che LED
Yakawanda chena LED inowanikwa kubva yero phosphor yakavhenekerwa neblue LED. Pane zvikonzero zviviri zvikuru zveChiedza che LEDkuora, imwe ndiyo kuora kwechiedza chebhuruu LED pachayo, kuora kwechiedza chebhuruu LED kunokurumidza kudarika tsvuku, yero, yegirini LED. Imwe ndiyo kuora kwechiedza chephosphors, uye kuderedzwa kwephosphors pakupisa kwakanyanya kwakanyanya.
Mhando dzakasiyana dze LED kuora kwayo kwakasiyana kwakasiyana. KazhinjiVagadziri ve LEDinogona kupa mwero wemwenje wekuora curve. Semuenzaniso, kuora kwechiedza cheCree muUnited States kunoratidzwa muMufananidzo 1.
Sezvinogona kuonekwa kubva pamufananidzo, kuora kwechiedza kwe LED i100
Uye tembiricha yayo yekusangana, iyo inonzi tembiricha yekusangana ihafu ye90
Tembiricha yeConductor PN junction, ndiyo inokwidza tembiricha yekutanga
Pane kuora kwechiedza, ndiko kuti, kupfupika kwehupenyu. Kubva mufananidzo 80
Sezvinoonekwa, kana tembiricha yekusangana iri 105 madhigirii, kupenya kunodonha kusvika 70% yehupenyu hwezviuru gumi chete 70 Junction Tenpeature (C) 105 185 175 55 45
Maawa, kune 20,000 maawa pa95 madhigirii, uye tembiricha yekusangana
Yakaderedzwa kusvika 75 madhigirii, tarisiro yehupenyu ndeye 50,000 maawa, makumi mashanu
Mufananidzo 1. Chiedza chekuora curve yeCree's LELED
Kana tembiricha yekusangana ichiwedzerwa kubva pa115 ° C kusvika 135 ° C, hupenyu hunoderedzwa kubva pa50,000 maawa kusvika 20,000 maawa. Kuora kwemamwe makambani kunofanirwa kuwanikwa kubva kufekitari yekutanga.
O4.2.2 Kiyi yekurebesa hupenyu: kuderedza tembiricha yayo yekusangana
Kiyi yekudzikisa tembiricha yejunction kuve negetsi rakanaka rekupisa. Kupisa kunogadzirwa ne LED kunogona kusunungurwa panguva yakakodzera.
Kazhinji iyo LED inosungirirwa kune aruminiyamu substrate, uye aluminium substrate yakaiswa pane inopisa exchanger, kana iwe uchigona chete kuyera tembiricha yegoko rekupisa kupisa, saka iwe unofanirwa kuziva kukosha kwekuwanda kwekupisa kwekupisa kuverenga kusanganisa. tembiricha. Kusanganisira Rjc (junction to housing), Rcm (imba kune aluminium substrate, chaizvoizvo, iyo inofanirawo kusanganisira kupisa kwemhepo yefirimu yakadhindwa shanduro), Rms (aluminium substrate kune radiator), Rsa (radiator kumhepo), iyo chero paine kusarongeka kwedata kuchakanganisa kurongeka kwebvunzo.
Mufananidzo 3 unoratidza dhiyabhorosi yedhizaini yega yega yekupisa kupisa kubva kuLED kuenda kune radiator, umo yakawanda yekupisa yekupisa inosanganiswa, ichiita kuti kurongeka kwayo kuve kushoma. Kureva kuti, huchokwadi hwekufungidzira tembiricha yekusangana kubva kune yakayerwa kupisa sink pamusoro tembiricha yakatoipa.
Tembiricha coefficient yevolt-ampere maitiro eO LED
O Isu tinoziva kuti LED ndeye semiconductor diodes, iyo, senge diode ese
Iine volt-ampere hunhu, iyo ine tembiricha hunhu. Chimiro chayo ndechekuti kana kutonhora kuchikwira, iyo volt-ampere hunhu inoshanduka kuruboshwe. Mufananidzo 4 unoratidza tembiricha maitiro eiyo LED's volt-ampere maitiro.
Tichifunga kuti iyo LED inopihwa inogara iripo ikozvino lo, iyo voltage iV1 kana tembiricha yejunction iri T1, uye kana tembiricha yejunction yawedzerwa kusvika T2, iyo yese volt-ampere hunhu inochinja kuruboshwe, iyo yazvino lo haina kuchinjika, uye iyo voltage inova V2. Iyi misiyano miviri yemagetsi inobviswa netembiricha kuti iwane tembiricha coefficient, inoratidzwa mumvic. Kune akajairwa silicon diode iyi tembiricha coefficient ndeye -2 mvic.
Nzira yekuyera sei kupisa kwejunction ye LED?
Iyo LED inoiswa mune yekupisa exchanger uye iyo inogara iripo dhiraivha inoshandiswa semagetsi. Panguva imwecheteyo, waya mbiri dzakabatanidzwa ne LED dzinobudiswa kunze. Batanidza mita yemagetsi kune inobuda (iyo yakanaka uye yakaipa matanda e LED) simba risati rabatidzwa, Wobva wabatidza magetsi, nepo LED isati yapisa, verenga kuverenga kwe voltmeter, iyo yakaenzana. kune kukosha kweV1, uye wozomirira kweinenge 1 awa, saka yasvika pakuyedza kupisa, uye wozoyera zvakare, iyo voltage kumagumo ese e LED yakaenzana neV2. Bvisa maitiro maviri aya kuti uwane mutsauko. Bvisa ne 4mV uye unogona kuwana tembiricha yejunction. Muchokwadi, LED inonyanya kuwanda yakatevedzana uye yobva yafanana, hazvina basa, ipapo mutsauko wevoltage unoumbwa neakawanda akatevedzana ma LED akajairika mupiro, saka kugovera iyo voltage musiyano nenhamba yenhevedzano ye LED kupatsanura ne. 4mV, unogona kuwana tembiricha yayo yekusangana.
4.3,Mwenje we LEDkutsamira paupenyu
Hupenyu hwe LED hunogona kusvika maawa 1000000?
Iyi ingori nhanho yepamusoro ye LED theoretical data, inosiiwa mamwe mamiriro emuganho (kureva, yakanaka mamiriro) pasi pe data, uye LED mukushandiswa chaiko kwezvinhu zvakawanda zvinokanganisa hupenyu hwayo,
pane zvinhu zvina zvinotevera:
1, chipfu
2, package
3, kugadzirwa kwemwenje
4.3.1. Chip
Mukati mekugadzirwa kwe LED, hupenyu hwe LED huchakanganiswa nekusvibiswa kweimwe tsvina uye kusakwana kwekristani lattice. O4.3.2. Packaging
Kunyangwe iyo post-process kurongedza ye LED inonzwisisika zvakare chimwe chezvinhu zvakakosha zvinokanganisa hupenyu hwemarambi e LED. Parizvino, makambani makuru epasirese akadai secree, lumilends, nichia uye mamwe mazinga epamusoro ekurongedza kwe LED ane kuchengetedzwa kwepatent, makambani aya mushure mekuita kwekurongedza zvinodiwa ane mwero wepamusoro, hupenyu hwe LED uye saka hunovimbiswa.
Parizvino, mabhizinesi mazhinji ane kutevedzera kwakawanda kwe LED mushure mekugadzirisa kurongedza, iyo inogona kuoneka kubva pakuonekwa, asi maitiro ekugadzirisa uye maitiro emhando hazvina kunaka, izvo zvinokanganisa zvakanyanya hupenyu hwe LED;
Dhizaini yekubvisa kupisa
Iyo ipfupi kupisa kupisa nzira, kuderedza kupisa conduction kuramba; Wedzera iyo mutual conduction nzvimbo uye kuwedzera kupisa kwekufambisa kumhanya; Zvinonzwisisika kukarukureta uye dhizaini kupisa dissipation nzvimbo; Kunyatsoshandisa kupisa simba rekuita.
4.3.3. Luminaire design
Kunyangwe dhizaini yekuvhenekesa inonzwisisika zvakare inyaya yakakosha inokanganisa hupenyu hwemarambi e LED. Kugadzirwa kwemwenje kunonzwisisika kunze kwekusangana nezvimwe zviratidzo zvemwenje, chinhu chakakosha chinodiwa kuburitsa kupisa kunoitwa kana LED yabatidzwa, ndiko kuti, kushandisa emhando yepamusoro zvigadzirwa zvekutanga zveCree nemamwe makambani, anoshandiswa mumarambi akasiyana. , Hupenyu hwe LED hunogona kusiyanisa kakawanda kana kunyange makumi enguva. Semuenzaniso, kune kutengeswa kwemarambi akabatanidzwa emwenje pamusika (imwechete 30W, 50W, 100W), uye kupisa kwekupisa kwezvigadzirwa izvi hakuna kutsetseka. Nekuda kweizvozvo, zvimwe zvigadzirwa muchiedza chemwedzi 1 kusvika ku3 pakutadza kwechiedza kunopfuura 50%, zvimwe zvigadzirwa zvinoshandisa anenge 0.07W yechubhu diki yemagetsi, nekuti hapana inonzwisisika yekupisa kupisa nzira, inotungamira mukuora kwechiedza nekukurumidza. , uye kunyange kumwe kusimudzirwa kwemitemo yemaguta, migumisiro inoita majee. Zvigadzirwa izvi zvine zvakaderera zvehunyanzvi zvemukati, mutengo wakaderera uye hupenyu hupfupi;
4.4.4. Magetsi
Kana simba remwenje remwenje rinonzwisisika. LED iri ikozvino dhiraivha mudziyo, kana simba ikozvino kuchinjika yakakura, kana kuwanda kweiyo simba tip pulse yakakwira, ichakanganisa hupenyu hwemwenje we LED sosi. Upenyu hwemagetsi emagetsi pachawo hunoenderana zvikuru kana kugadzirwa kwemagetsi kunonzwisisika, uye pasi pemamiriro ekugadzirisa magetsi ekugadzirisa, hupenyu hwemagetsi hunoenderana nehupenyu hwezvikamu.
Parizvino, ma LED anonyanya kushandiswa munzvimbo nhatu huru:
1) Ratidza: senge marambi echiratidzo, mwenje, mwenje yekunyevera, skrini yekuratidzira, nezvimwe.
Kuvhenekera: tochi, mwenje wemugodhi, mwenje wekutungamira, mwenje webetsero, nezvimwe.
3) Inoshanda mwaranzi: senge biological ongororo, phototherapy, kurapa mwenje, mwenje wechirimwa, nezvimwe.
Iwo makuru ma paramita ekuyera mafotoelectric kuita kwe LED anoratidzwa muTafura 1.
| Radiation Basa | Performance Display Lighting Function Radiation | kugovera | Inoshanda mwaranzi |
|
| Kupenya kana kupenya kusimba kwe optical properties, beam angle uye light intensity | chiyero chemavara, kuchena kwemavara uye main wavelength luminous flux (inoshanda luminous flux), mwenje unopenya (lm / W), mwenje wepakati, bhenji angle, mwenje wakasimba kugovera, kurongeka kwemavara, tembiricha yemavara, indekisi yemavara inoshanda nemwaranzi simba, kupenya kunoshanda, radiation intensity distribution, central wavelength, peak wavelength, bandwidth | ikozvino, unidirectional breakdown voltage, reverse leakage current Photobiosafety retinal blue chiedza chekuratidzwa kukosha, ziso riri pedyo neultraviolet hazard exposure value |
Chii chinonzi luminous flux?
Huwandu hwese hwakaburitswa nechiedza muchikamu chenguva inonzi luminous flux, inoratidzirwa ne Φ
Mayuniti ane lumens (lm)
1w (wavelength 555 nm) =683lumens
Iyo inopenya inopenya yemamwe akajairika magetsi masosi:
Mwenje webhasikoro: 3W 30lm
Chiedza chichena: 75W 900lm
Fluorescent rambi "TL"D 58W 5200lm
Hunhu hwechiedza hunodiwa nekuvheneka kwe LED
Zviyero zvina zvakakosha zvemwenje
Chii chinonzi kuvheneka?
Chiitiko chinopenya chekuyerera pachikamu chechikamu chechinhu chakavhenekerwa ndicho mwenje.
Inotsanangurwa naE. ln lux (lx=lm/m2)
Illuminance inozvimiririra kune iyo nzira iyo inopenya flux inoitika pamusoro
Kazhinji mukati uye kunze kwekuvhenekera mazinga
Nzvimbo dzakasiyana muzuva masikati
Nzira yekuyera sei chiedza? Vanoyerwa nei?
1. Chitubu chechiedza
2. Opaquescreen
3. Photocell
4. Mwaranzi yechiedza (yakaratidzwa kamwe)
5. Mwaranzi yechiedza (inoratidzirwa kaviri)
Kupenya kwakanyanya: nzira yekutsvaga photometer (semufananidzo)
Chiedza: illuminometer (mufananidzo)
Kupenya: mwenje mita ( mufananidzo)
5.2, tembiricha yeruvara uye kupihwa kweruvara kwechiedza sosi
I. Kupisa Kwemavara
Muviri mutema wakajairika unodziyirwa (senge tungsten filament mumwenje we incandescent), uye ruvara rwemuviri mutema unotanga kushanduka zvishoma nezvishoma pamwe nerima dzvuku - tsvuku tsvuku - orenji - yero - chena - yebhuruu sezvo tembiricha inokwira. Kana ruvara rwechiedza chinobudiswa nechiedza rikafanana neruvara rwemunhu mutema ari patembiricha yakati, tinodaidza tembiricha yakakwana yemunhu mutema panguva iyoyo tembiricha yeruvara rwechiedza.
Tembiricha K inoratidzwa. Basic color
Sezvinoratidzwa patafura:
Tembiricha yemavara common sense:
| Kupisa kwemavara | photochron | Atmosphere effect | Tricolor fluorescence |
| Kupfuura 5000k | Cool bluish white | Kunzwa kutonhora | Mercury rambi |
| 3300-5000k abut | Pakati pepedyo nechiedza chechisikigo | Hapana zvakajeka zvinoonekwa zvepfungwa zvinokonzerwa | Rudzi rusingagumi fluorescence |
| 3300k zvishoma pane | Muchena unodziya nemaruva eorenji | Kunzwa kunodziya | Incandescent rambi quartz halogen |
Kuburitsa mavara
Chiyero chechiedza cheruvara rwechinhu pachacho chinodaidzwa kuti color rendering, ndiko kuti, chiyero cheruvara senge hupenyu, mwenje ine ruvara rwepamusoro inoburitsa zviri nani kune ruvara, ruvara rwatinoona rwuri pedyo nerakasikwa, chitubu chechiedza chine mavara akaderera hachina kunaka mukuberekana kwemavara, uye kutsauswa kweruvara kwatinoona kwakakurawo, kunomiririrwa nemavara ekuratidza indekisi (Ra).
The International Lighting Committee CIE inoisa ruvara rwezuva pa 100. indekisi yemavara emarudzi ose ezviedza zvakangofanana.
Semuenzaniso, indekisi yemuvara weiyo high pressure sodium rambi iRa = 23, uye indekisi yemavara yemwenje wefluorescent ndiRa = 60-90. Kana iyo indekisi yeruvara iri pedyo kusvika ku100, zviri nani kuburitsa kwemavara.
Sezvinoratidzwa pazasi: mhedzisiro yezvinhu zvine mavara akasiyana indices:
Kupa ruvara uye kuvhenekera
Indekisi yemavara ekupa chiedza chechiedza pamwe chete neruvheneko inosarudza kujeka kwekuona kwezvakatipoteredza. Zvidzidzo zvakaratidza kuti pane kuenzana pakati pekuvhenekera uye mavara ekupa indekisi: kuvhenekera hofisi nerambi rine ruvara rendering index Ra > 90 zviri nani pane kuvhenekera hofisi nemwenje ine yakaderera color rendering index (Ra <60) mukati mashoko ekugutsikana nechitarisiko chayo.
Kukosha kwedhigirii kunogona kuderedzwa neanopfuura 25%.
Chitubu chechiedza chine indekisi yemavara emhando yepamusoro uye kugona kupenya kwakanyanya kunofanirwa kusarudzwa zvakanyanya sezvinobvira, uye kuvhenekera kwakakodzera kunofanira kushandiswa kuwana chiono chakanaka nemutengo wesimba shoma.
Chitarisiko chekuita.
Semuenzaniso iyo wonled LED Rechargeable tafura mwenje
Iri rambi rekucheka-kumucheto rakashongedzerwa ne USB Type-C tekinoroji kuti ipe isina musono uye nekukurumidza kuchaja chiitiko. Chimwe chezvinhu zvinomira zverambi iri bhatiri rayo rine simba re3600mAh, richiona kuvhenekwa kunogara kwenguva refu. Nenguva yekushanda ye8-16 maawa, unogona kuvimba nemwenje uyu kuti uende newe masikati neusiku. Uye nekuda kweiyo touch switch, kugadzirisa kupenya kuti kuenderane nezvaunoda kuri nyore se swipe yemunwe wako. Chii chinoisa LED yedu.rechargeable tafura rambiparutivi ibasa rayo reIP44 risina mvura. Nguva yekuchaja imhepo, inongotora maawa 4-6 kuti inyatsochaja. Uchishandisa kurerukira kwe USB Type-C, unogona kuchaja rambi iri nyore nemidziyo yakasiyana-siyana, kuve nechokwadi chekushanda kwakasiyana-siyana uye kushandiswa kwemahara. Nekupinza kwe110-200V uye kubuda kwe5V 1A, mwenje uyu unoshanda uye wakavimbika.
| Product Name: | mwenje wetafura yekudyira |
| Material: | Metal+Aluminium |
| Kushandiswa: | cordless rechargeable |
| Chiedza chechiedza: | 3W |
| Shandura: | Dimmable touch |
| Bhatiri: | 3600MAH(2*1800) |
| Ruvara: | Mutema, Muchena |
| Style: | mazuvano |
| Nguva yekushanda: | 8-16maawa |
| Isingapindi mvura: | IP44 |
Features:
rambi Kukura: 100 * 380MM
Bhatiri: 3600mAh
2700K 3W
IP44
Kuchaja nguva:4-6 maawa
Nguva yekushanda: 8-16 maawa
Shandura: bata chinja
lnput 110-200V uye yakabuda 5V 1A
