Takardun Fasaha na LED - Sashi na 4 na Tsarin Rayuwa - Ranar Saki 2014-12-10 - Hausa

1. Bayanin Samfur

Wannan takardar fasaha ta shafi wani takamaiman kayan LED, tana cikakken bayanin gudanar da tsarin rayuwarsa da tarihin bita. Babban bayanin da aka bayar yana nuna cewa sashi na tsarin rayuwa ya kasance "Bita" tare da lambar bita 4. Ranar sakin wannan bita an rubuta ta a ranar 10 ga Disamba, 2014, da karfe 09:54:21. Ingancin takardar an yi masa alama da "Lokacin Karewa" na "Har Abada," yana nuna cewa wannan sigar takardar ta kasance babban ma'ana sai dai idan an maye gurbinta da wani bita na gaba. Babban manufar wannan takarda ita ce samar da injiniyoyi, ƙwararrun saye, da ma'aikatan tabbatar da inganci da cikakkun ƙayyadaddun fasaha da sigogi masu alaƙa da Bita na 4 na wannan kayan.

Kasuwar da aka yi niyya don irin wannan kayan tana da faɗi, tana haɗawa da haske na gabaɗaya, na'urorin lantarki na mabukaci, hasken mota, da aikace-aikacen masana'antu inda ake buƙatar ingantattun hanyoyin haske masu ƙa'ida. Babban fa'idar da aka nuna ta hanyar bita mai ƙarfi shine daidaito a cikin aiki da siffar siffa, wanda yake da mahimmanci ga tsarawa da tsayin ƙira.

2. Zurfin Fassarar Maƙasudin Sigogi na Fasaha

Yayin da abin da aka bayar ya mayar da hankali kan bayanan gudanarwa, cikakken takardar bayanan fasaha don kayan LED yawanci zai haɗa da waɗannan rukunoni na sigogi, waɗanda ke da mahimmanci don ƙira da aikace-aikace.

2.1 Halayen Hoto da Launi

Mahimman sigogi sun haɗa da ƙarfin haske (wanda aka auna a cikin lumens), wanda ke ayyana jimlar ƙarfin haske da ake fitarwa. An ƙayyade Zazzabin Launi Mai Alaƙa (CCT) don LED-White, yawanci daga dumi-dumi (2700K-3000K) zuwa sanyi-sanyi (5000K-6500K). Don LED masu launi, tsayin raƙuman ruwa da tsaftar launi suna da mahimmanci. Haɗin kai na launi (misali, CIE 1931 x, y) yana ba da cikakken ma'anar launin da aka fitar. Kusurwar kallo, yawanci ana ba da ita azaman kusurwar da ƙarfin haske ya kasance rabin ƙimar kololuwa, yana ƙayyade rarraba haske a sarari.

2.2 Sigogi na Lantarki

Ƙarfin lantarki na gaba (Vf) shine sigogi na asali, yana ƙayyade raguwar ƙarfin lantarki a kan LED lokacin aiki a wani ƙayyadadden ƙarfin lantarki na gaba (If). Wannan alaƙar ba ta da layi. Cikakkun ƙididdiga na iyaka don ƙarfin lantarki na gaba da ƙarfin lantarki na baya ba za a wuce su ba don hana lalacewa ta dindindin. Ana iya samun juriyar motsi daga lanƙwan I-V kuma yana da mahimmanci don ƙirar direba.

2.3 Halayen Zafi

Zazzabin haɗuwa (Tj) shine zafin jiki a cikin guntu na semiconductor kanta kuma shine babban abin da ke shafar rayuwar LED da aiki. Juriyar zafi daga haɗuwa zuwa wurin solder (Rth-Js) ko yanayi (Rth-Ja) yana ƙididdige yadda za a iya watsar da zafi cikin sauƙi. Gudanar da zafi mai kyau, kiyaye Tj a cikin ƙayyadaddun iyakoki, yana da mahimmanci don kiyaye fitar da ƙarfin haske, kwanciyar hankali na launi, da tsawon rayuwar aiki, wanda sau da yawa yana bin tsarin lalacewar Arrhenius.

3. Bayanin Tsarin Rarraba

Samar da LED yana haifar da bambance-bambance na halitta. Rarraba shine tsarin rarraba LED zuwa ƙungiyoyi (kwandon shara) bisa mahimman sigogi don tabbatar da daidaito a cikin rukunin samarwa.

3.1 Rarraba Tsawon Raƙuman Ruwa/Zazzabin Launi

Ana rarraba LED bisa ga haɗin kai na launi a kan zanen CIE. Ƙunƙun kwandon shara (misali, 2-mataki, 3-mataki MacAdam ellipses) suna wakiltar ƙananan bambance-bambancen launi kuma ana buƙatar su don ingantaccen haske inda daidaiton launi ke da mahimmanci, kamar a cikin nunin kantuna ko hasken gine-gine.

3.2 Rarraba Ƙarfin Hasken Hasken

Ana rarraba LED ta hanyar fitar da haskensu a daidaitaccen gwajin gwaji. Lambar kwandon shara (misali, lambar ƙarfin haske) tana nuna mafi ƙarancin da mafi girman ƙarfin haske don wannan rukunin. Wannan yana ba masu ƙira damar zaɓar matakin haske da ya dace don aikace-aikacensu da kuma hasashen aikin samfur na ƙarshe.

3.3 Rarraba Ƙarfin Lantarki na Gaba

Rarraba ta hanyar ƙarfin lantarki na gaba a ƙayyadadden gwajin gwaji yana taimakawa wajen ƙirar ingantattun da'irori masu daidaito, musamman lokacin da aka haɗa LED da yawa a jere. Daidaita kwandon shara na Vf na iya inganta daidaiton halin yanzu a cikin igiyoyi masu kama da juna.

4. Nazarin Lanƙwan Aiki

4.1 Lanƙwan Halayen Halin Yanzu-Ƙarfin Lantarki (I-V)

Lanƙwan I-V yana da ƙarfi. Ƙarƙashin ƙarfin lantarki na bakin kofa, ƙaramin halin yanzu yana gudana. Sama da shi, halin yanzu yana ƙaruwa da sauri tare da ƙaramin ƙaruwa a cikin ƙarfin lantarki. Wannan halayen yana buƙatar amfani da direba mai ƙarfin lantarki maimakon tushen ƙarfin lantarki don tabbatar da aiki mai ƙarfi da hana guduwar zafi.

4.2 Dogaro da Zazzabi

Ƙarfin haske yawanci yana raguwa yayin da zazzabin haɗuwa ya ƙaru. An nuna wannan alaƙa a cikin jadawali na ƙarfin haske mai alaƙa da zazzabin haɗuwa. Ƙarfin lantarki na gaba shima yana raguwa tare da ƙaruwar zazzabi (coefficient mara kyau na zazzabi), wanda zai iya zama abu a cikin wasu da'irori na kariya na direba.

3.3 Rarraba Ƙarfin Bakan (SPD)

Jadawalin SPD yana nuna ƙarfin haske da aka fitar a kowane tsayin raƙuman ruwa. Don LED-White (yawanci blue chip + phosphor), yana nuna kololuwar shuɗi daga guntu da faɗaɗɗen hasken rawaya/ja daga phosphor. SPD yana ƙayyade Fihirisar Fassarar Launi (CRI), wanda ke auna yadda launuka suka bayyana a ƙarƙashin tushen haske.

5. Bayanin Injiniya da Kunshin

An ayyana girman jiki na kunshin LED a cikin cikakken zanen injiniya. Wannan ya haɗa da tsayin gabaɗaya, faɗi, da tsayi, da girman wurin fitarwa da matsayi. An ba da tsarin filin solder (Tsarin Ƙasa) don ƙirar PCB, yana tabbatar da ingantaccen solder da haɗin zafi. An nuna bayanin polarity mai bayyanawa (yawanci alamar cathode, kamar tsaga, yanke kusurwa, ko ɗigo) don hana shigar da kuskure.

6. Jagororin Solder da Taro

6.1 Bayanin Siffar Solder na Reflow

An ba da shawarar bayanin reflow, gami da dumama, jiƙa, reflow (kololuwar zazzabi), da ƙimar sanyaya. Matsakaicin iyakar zazzabi da lokacin da ya wuce ruwa (TAL) suna da mahimmanci don guje wa lalata kunshin LED, ruwan tabarau, ko haɗin waya na ciki. Bayanin dole ne ya dace da taron PCB da sauran kayan aiki.

6.2 Kariya da Gudanarwa

Kariya na ESD (Fitar da Lantarki) suna da mahimmanci saboda guntu na LED suna da hankali ga lantarki. Shawarwari sun haɗa da amfani da tashoshi na aiki masu tushe da abubuwan wuyan hannu. Ya kamata a guji matsin lamba na injiniya akan ruwan tabarau. Dole ne wakilan tsaftacewa su dace da kayan ruwan tabarau don hana hazo ko fashewa.

6.3 Yanayin Ajiya

Ya kamata a adana LED a cikin yanayi mai bushewa, mara aiki (sau da yawa tare da bushewa) don hana shan danshi, wanda zai iya haifar da 'popcorning' yayin solder reflow. An ƙayyade kewayon zazzabi da zafi don kiyaye iyawar solder da aiki.

7. Bayanin Kunshin da Oda

Ana samar da kayan a kan tef da reel don haɗa kai. Ƙayyadaddun kunshin yana cikakken bayanin girman reel, faɗin tef, tazarar aljihu, da alkibla. Alamar da ke kan reel ko akwati ta haɗa da lambar sashi, adadi, lambar rukuni/loti, da lambar kwanan wata. Lambar sashi kanta tana bin takamaiman al'adar suna wanda ke ɓoye mahimman halaye kamar launi, kwandon shara na ƙarfin haske, kwandon shara na ƙarfin lantarki, da nau'in kunshin, yana ba da damar yin oda daidai.

8. Shawarwarin Aikace-aikace

8.1 Yanayin Aikace-aikace na Yau da Kullun

Dangane da ƙayyadaddun bayanansa daga daidaitaccen LED, wannan kayan ya dace da raka'o'in hasken baya (BLUs) a cikin nuni, fitilun nuni, hasken ado, alamar alama, da haske na gabaɗaya a cikin ƙananan kayan aiki. Takamaiman aikace-aikace yana ƙayyade fifikon sigogi: inganci don na'urori masu amfani da baturi, babban ƙarfin haske don hasken yanki, ko daidaiton launi don nunin gani.

8.2 Abubuwan Tunani na Ƙira

Zaɓin direba yana da mahimmanci: ana buƙatar direba mai ƙarfin lantarki wanda ya dace da halin yanzu na LED. Ƙirar zafi ta ƙunshi ƙididdige abin da ake buƙata na heatsinking don kiyaye zazzabin haɗuwa a cikin iyakoki, la'akari da ƙarfin watsa zafi na PCB da yanayin yanayi. Ƙirar gani ta ƙunshi zaɓin ingantattun na'urorin gani na biyu (ruwan tabarau, masu watsawa) don cimma tsarin katako da rarraba ƙarfi da ake so.

9. Kwatancen Fasaha

Idan aka kwatanta da bita na farko ko madadin kayan aiki, Bita na 4 na iya ba da ingantattun aiki na haske (lumens a kowace watt), yana samar da ƙarin fitar da haske don wannan shigarwar lantarki, yana haifar da ingantaccen tsarin tsarin. Yana iya ƙunsar ingantaccen tsarin rarraba launi, yana rage canjin launi tsakanin raka'o'i. Aikin zafi zai iya inganta ta hanyar ingantaccen ƙirar kunshin, yana ba da damar ƙarin ƙarfin tuƙi ko tsawon rayuwa a wurin aiki iri ɗaya. Ƙirar injiniya mai yiwuwa ta kasance ba ta canzawa don tabbatar da daidaitawar baya a cikin ƙirar da ake da su.

10. Tambayoyin da ake yawan yi (FAQ)

Q: Me yake nufin 'Tsarin Rayuwa: Bita'?

A: Yana nuna cewa takardar da ƙayyadaddun bayanan kayan da ta bayyana suna cikin yanayin canji ko sabuntawa mai sarrafawa, ba sakin farko ko sashi na tsufa ba. Bita na 4 shine irin wannan sabuntawa na huɗu.

Q: 'Lokacin Karewa' shine 'Har Abada.' Shin wannan yana nufin kayan ba zai taɓa zama tsoho ba?

A: A'a. Yana nufin wannan takamaiman bita na takardun ba shi da ƙayyadadden ranar karewa. Kayan da kansu ƙila a ƙarshe an daina su (Ƙarshen Rayuwa), wanda za a sanar da shi ta hanyar sanarwar canjin samfur (PCN) daban.

Q: Zan iya amfani da bayanan wannan bita don sabbin ƙira?

A: Ee, ƙayyadaddun bayanai a cikin Bita na 4 suna da inganci don ƙira. Duk da haka, koyaushe ana ba da shawarar duba sabon bita ko kowane kuskure da ya dace kafin a kammala ƙira.

Q: Ta yaya zan fassara rashin cikakkun bayanan fasaha a cikin guntu da aka bayar?

A> Rubutun da aka bayar shine bayanan kawunan gudanarwa. Cikakken takardar bayanai zai ƙunshi sassa masu yawa akan bayanan gani, lantarki, zafi, da injiniya kamar yadda aka zayyana a cikin wannan takarda.

11. Amfani na Aiki

Yi la'akari da ƙirar fitilar tebur mai amfani da USB. Mai zane ya zaɓi wannan LED bisa ingancinsa da zazzabin launi. Ta amfani da Vf da If daga takardar bayanai, sun ƙirƙira mai sauƙaƙan canza ƙarfin lantarki mai ƙarfin lantarki wanda aka kunna daga USB 5V. An yi amfani da ƙimar juriyar zafi (Rth-Ja) tare da raguwar wutar lantarki da ake tsammani don ƙididdige zazzabin haɗuwa da ake tsammani. Idan Tj da aka ƙidaya ya yi yawa, an haɗa ƙaramin PCB na ƙarfe-core ko substrate na aluminum a cikin gidan fitilar don zama heatsink, yana tabbatar da cewa LED yana aiki a cikin ƙayyadadden kewayon zazzabi don dogon lokacin dogaro da ingantaccen fitar da haske.

12. Gabatarwar Ka'ida

LED diode ne na semiconductor. Lokacin da aka yi amfani da ƙarfin lantarki na gaba, electrons da ramuka suna sake haɗuwa a cikin yanki mai aiki na kayan semiconductor (misali, InGaN don shuɗi/kore, AlInGaP don ja/amber), suna sakin makamashi a cikin nau'in photons - wani tsari da ake kira electroluminescence. Tsayin raƙuman ruwa (launi) na hasken da aka fitar an ƙayyade shi ta hanyar ƙarfin bandgap na kayan semiconductor. Ana ƙirƙira LED-White yawanci ta hanyar lulluɓe guntu LED shuɗi da phosphor rawaya; wasu hasken shuɗi suna canzawa zuwa rawaya, kuma cakuda shuɗi da hasken rawaya ana ganinsa azaman fari.

13. Trends na Ci gaba

Masana'antar LED na ci gaba da mayar da hankali kan ƙara ingancin haske, tana tuƙawa zuwa iyakokin ka'idar. Akwai ci gaba mai mahimmanci a cikin ingancin launi, tare da babban CRI da cikakken bakan LED suna zama mafi yawanci don aikace-aikacen da ke buƙatar ingantaccen fassarar launi. Ƙananan ƙira yana ci gaba, yana ba da damar ƙananan ƙananan pixel a cikin nuni kai tsaye. Hasken wayo da haɗin kai, haɗa na'urori masu auna firikwensin da sarrafawa, shine filin aikace-aikace mai girma. Bugu da ƙari, bincike a cikin sabbin kayan aiki kamar perovskites da ɗigon ƙididdiga yana nufin inganta inganci, tsaftar launi, da farashin samarwa. Hakanan yanayin ya haɗa da ƙarin ƙarfi akan hasashen dogaro da ƙirar rayuwa a ƙarƙashin yanayi daban-daban na damuwa.