Takardar Bayanin Fasaha na Kayan LED - Sake Dubawa na 2 - Ranar Saki 2014-12-05 - Takardar Fasaha ta Turanci

1. Bayyana Samfur

Wannan takardar fasaha ta shafi wani takamaiman kayan lantarki, mai yiwuwa LED (Diode Mai Fitadar Haske) ko wata na'urar haske mai alaƙa. Babban bayanin da aka bayar ya tabbatar da ingancin takardar da matsayin sake dubawa. Kayan yana cikin matakin "Sake Dubawa" na rayuwarsa, yana nuna cewa sabon sigar ƙirar da ta gabata ne. Lambar sake dubawa ita ce 2. An fitar da takardar kanta a ranar 5 ga Disamba, 2014, da karfe 11:55:06 na safe. Sanannen abu, "Lokacin Karewa" an jera shi a matsayin "Har Abada," wanda ke nuna cewa wannan sigar takardar an yi niyya ta zama cikakken ma'ana don wannan takamaiman sake dubawa na kayan kuma ba ta da ranar da aka tsara don lalacewar abun cikinta na fasaha. Wannan ya zama ruwan dare ga ƙayyadaddun bayanan samfur da aka ƙaddara waƙaƙƙarfan sigar kayan hardware.

2. Zurfin Fassarar Maƙasudin Sigogi na Fasaha

Duk da cewa ɓangaren PDF da aka bayar yana iyakance ga metadata, cikakken takardar bayanin fasaha don irin wannan kayan yawanci zai haɗa da waɗannan nau'ikan sigogi. Ƙimar da ke ƙasa misalai ne na misali bisa ga ka'idojin masana'antu na gama gari don kayan daga wannan zamani kuma ya kamata a tabbatar da su da cikakken, takardar bayanin asali don takamaiman lambar sashi.

2.1 Halayen Haske da Launi

Waɗannan sigogi suna ayyana fitowar haske da launin na'urar.

• Matsakaicin Tsawon Tsawon Zango / Zazzabi Mai Alaƙa da Launi (CCT):Ga LED masu launi (misali, ja, shuɗi, kore), an ƙayyade kololuwar tsawon zango (misali, 625nm ± 5nm). Ga fararen LED, ana ba da zazzabin launi (misali, 4000K, 5000K, 6500K).
• Ƙarfin Haske:Jimillar fitowar haske da ake iya gani, ana auna shi da lumens (lm). Matsakaicin ƙarfin LED na tsakiyar 2014 zai iya ba da lumens 20-30 a daidaitan gwajin halin yanzu.
• Ingancin Haske:Ingancin canza wutar lantarki zuwa haske mai gani, ana auna shi da lumens a kowace watt (lm/W). Ga LED na zamani na 2014, inganci a cikin kewayon 100-130 lm/W sun kasance na gama gari don fararen LED masu inganci.
• Fihirisar Nuna Launi (CRI):Ga fararen LED, wannan yana auna ingancin haske da ikonsa na bayyana ainihin launukan abubuwa. CRI sama da 80 ya zama ruwan dare don hasken gabaɗaya, tare da bambance-bambancen babban CRI suna ba da 90+.

2.2 Sigogi na Lantarki

Waɗannan suna ayyana yanayin aiki da iyakokin lantarki na kayan.

• Ƙarfin Lantarki na Gaba (Vf):Ragewar ƙarfin lantarki a kan LED lokacin da yake aiki a ƙayyadadden halin yanzu. Wannan ya dogara sosai da fasahar guntu LED da launi. Misali, matsakaicin farar LED na iya samun Vf na 2.8V zuwa 3.4V a 350mA.
• Halin Yanzu na Gaba (If):Halin yanzu na aiki da aka ba da shawarar. Ƙimar gama gari sune 150mA, 350mA, ko 700mA don LED masu ƙarfi. Wucewa mafi girman ƙimar halin yanzu na iya haifar da lalacewa ta dindindin.
• Ƙarfin Lantarki na Baya (Vr):Matsakaicin ƙarfin lantarki da LED zai iya jurewa lokacin da aka haɗa shi cikin karkatar da baya ba tare da rushewa ba. Wannan yawanci yana da ƙasa sosai (misali, 5V).
• Rushewar Wutar Lantarki:Matsakaicin ƙarfin wutar lantarki da fakiti zai iya ɗauka, ana ƙididdige shi azaman Vf * If, kuma yana iyakance ta hanyar ƙuntatawa na zafi.

2.3 Halayen Zafi

Aikin LED da tsawon rayuwa sun dogara sosai da sarrafa zafin jiki.

• Juriya na Zafi, Mahada-zuwa-Akwati (RθJC):Wannan yana nuna yadda zafi ke tafiya yadda ya kamata daga mahadar semiconductor zuwa akwatin kayan. Ƙimar ƙasa (misali, 5-10 °C/W) ya fi kyau, yana nufin an cire zafi yadda ya kamata.
• Matsakaicin Zafin Mahada (Tj max):Matsakaicin zafin jiki da kayan semiconductor na LED zai iya jurewa ba tare da haɗarin gazawa mai tsanani ko lalacewa mai sauri ba. Wannan sau da yawa yana 125°C ko 150°C.
• Kewayon Zafin Aiki:Kewayon zafin yanayi wanda aka ƙayyade na'urar za ta yi aiki cikin aminci, yawanci daga -40°C zuwa +85°C ko +105°C.

3. Bayanin Tsarin Rarraba

Saboda bambance-bambancen masana'antu, ana rarraba LED zuwa kwandon aiki. Wannan yana tabbatar da daidaito a cikin rukunin samarwa.

3.1 Rarraba Tsawon Zango / Zazzabin Launi

Ana auna LED kuma a haɗa su cikin matsananciyar kewayon tsawon zango ko CCT (misali, matakai na 1nm ko 2nm don launi, matakai na 100K ko 200K don fari). Wannan yana da mahimmanci ga aikace-aikacen da ke buƙatar daidaiton bayyanar launi, kamar hasken baya na nuni ko hasken gine-gine.

3.2 Rarraba Ƙarfin Haske

Ana rarraba LED bisa ga fitowar haske a daidaitan gwajin halin yanzu. Ana haɗa su cikin kwandon ƙarfin haske (misali, kewayon lumens 5-10 a kowace kwandon). Wannan yana ba masu ƙira damar zaɓar daidaitaccen matakin haske don samfurinsu.

3.3 Rarraba Ƙarfin Lantarki na Gaba

Hakanan ana rarraba LED ta hanyar rage ƙarfin lantarki na gaba. Haɗa LED tare da ƙimar Vf iri ɗaya yana taimakawa wajen ƙirar da'irori masu tuƙi mafi inganci, musamman lokacin da aka haɗa LED da yawa a jere, yayin da yake rage daidaiton halin yanzu.

4. Bincike na Lanƙwasa Aiki

Bayanan hoto suna da mahimmanci don fahimtar halayen kayan a ƙarƙashin yanayi daban-daban.

4.1 Lanƙwasa Halin Yanzu da Ƙarfin Lantarki (I-V)

Wannan lanƙwasa yana nuna alaƙar tsakanin halin yanzu na gaba da ƙarfin lantarki na gaba. Ba shi da layi, tare da halayen ƙarfin lantarki na "gwiwa". Lanƙwasa yana motsawa tare da zafin jiki; a manyan yanayin zafi, irin wannan halin yanzu zai haifar da ƙaramin ƙarfin lantarki na gaba.

4.2 Halayen Zafin Jiki

Mahimman jadawali sun haɗa da Ƙarfin Haske da Zafin Mahada da Ƙarfin Lantarki na Gaba da Zafin Mahada. Fitowar haske yawanci yana raguwa yayin da zafin jiki ya ƙaru. Fahimtar wannan raguwa yana da mahimmanci don ƙirar zafi don kiyaye hasken da aka yi niyya.

4.3 Rarraba Ƙarfin Haske na Bakan

Wannan jadawali yana nuna ƙarfin haske da aka fitar a kowane tsawon zango. Ga fararen LED (yawanci blue chip + phosphor), yana nuna kololuwar shuɗi daga guntu da faɗaɗɗen fitowar rawaya/ja daga phosphor. Siffar wannan lanƙwasa tana ƙayyade wurin launin LED da CRI.

5. Bayanin Injiniya da Fakiti

Ƙayyadaddun jiki suna tabbatar da haɗin kai yadda ya kamata cikin samfurin ƙarshe.

5.1 Zanen Tsarin Girma

Cikakken zanen injiniya yana nuna duk mahimman girma: tsayi, faɗi, tsayi, siffar ruwan tabarau, da kowane fasalin hawa. Koyaushe ana ƙayyade ƙimar jurewa.

5.2 Tsarin Kafa da Ƙirar Kafa na Solder

An ba da shafin ƙafa (tsarin ƙasa) da aka ba da shawarar don PCB. Wannan ya haɗa da girman, siffa, da tazara na kafofin tagulla don tabbatar da ingantaccen solder da haɗin zafi yadda ya kamata.

5.3 Gano Polarity

An nuna alamar bayyananne ta tashoshi na anode (+) da cathode (-), sau da yawa ta hanyar zane da ke nuna tsaga, yanke kusurwa, alama akan fakiti, ko girma daban-daban na kafa.

6. Jagororin Solder da Taro

6.1 Bayanin Siffar Solder na Reflow

Cikakken jadawali na zafin jiki da lokaci yana ayyana ingantaccen tsarin reflow. Mahimman sigogi sun haɗa da ƙimar hawan dumama, lokacin jiƙa da zafin jiki, kololuwar zafin jiki (yawanci bai wuce 260°C na dakika 10 ba don daidaitattun fakiti), da ƙimar sanyaya. Bin wannan bayanin yana hana girgizar zafi da lalacewa.

6.2 Kariya da Sarrafawa

• Hankalin ESD:LED sau da yawa suna da hankali ga fitar da wutar lantarki (ESD). Dole ne a bi ingantaccen tsarin sarrafa ESD-safe (wrist straps, conductive mats).
• Matakin Hankalin Danshi (MSL):An sanya fakiti matakin MSL (misali, MSL 3) yana nuna tsawon lokacin da za a iya fallasa shi ga danshin yanayi kafin a gasa shi kuma a sake rufe shi da ƙarfi don hana "popcorning" yayin reflow.
• Tsaftacewa:Shawarwari don wakilan tsaftacewa bayan solder waɗanda suka dace da ruwan tabarau na LED da kayan fakiti.

6.3 Yanayin Ajiya

Yanayin ajiya na dogon lokaci da aka ba da shawarar: yawanci a wuri mai bushewa, duhu a yanayin zafin jiki tsakanin 5°C da 30°C, tare da danshin dangi ƙasa da 60%. Ga sassan da aka ƙididdige MSL, ana buƙatar ajiya a cikin jakar shinge na danshi tare da desiccant.

7. Bayanin Fakiti da Oda

7.1 Ƙayyadaddun Fakiti

Yana bayyana nau'in isarwa: tef da reel (daidaitaccen don abubuwan SMD), tube, ko tray. Yana ƙayyade girman reel, ƙidaya aljihu, daidaitawa a cikin tef, da jagora/tef na trailer.

7.2 Alama da Alama

Yana bayyana alamun akan fakitin kayan (sau da yawa lambar haruffa da lambobi mai sauƙi) da alamun akan reel ko akwati, waɗanda suka haɗa da lambar sashi, adadi, lambar kuri'a, da lambar kwanan wata.

7.3 Ƙirar Lambar Model

Yana karya lambar sashi don bayyana yadda take ɓoye mahimman halaye kamar launi, kwandon ƙarfin haske, kwandon ƙarfin lantarki, kwandon zafin launi, da nau'in fakiti. Wannan yana ba da damar yin oda daidai.

8. Shawarwarin Aikace-aikace

8.1 Da'irori na Aikace-aikacen Yau da Kullun

Zane-zane don da'irori masu tuƙi na yau da kullun na yau da kullun, suna nuna yadda ake haɗa LED tare da resistor mai iyakancewa (don ƙananan halin yanzu) ko takamaiman IC mai tuƙi na LED (don ƙarin ƙarfi ko sarrafawa daidai).

8.2 Abubuwan Ƙira

• Gudanar da Zafi:Yana jaddada wajibcin ingantaccen PCB da aka ƙera tare da isassun ramukan zafi kuma mai yiwuwa heatsink don kiyaye zafin mahada a cikin iyakoki masu aminci don aiki da tsawon rai.
• Ƙirar Haske:Abubuwan da aka yi la'akari da su don na'urorin haske na biyu (ruwan tabarau, masu watsawa) don cimma tsarin hasken da ake so da rarraba haske.
• Ƙirar Lantarki:Muhimmancin amfani da tushen halin yanzu na yau da kullun, ba tushen ƙarfin lantarki na yau da kullun ba, don tuƙi LED. Yana tattauna tasirin haɗin jere da layi daya.

9. Kwatancin Fasaha

Duk da cewa kwatancen kai tsaye na abokin hamayya ba ya cikin PDF na tushe, za a iya sanya fasalin kayan a cikin mahallin. LED na sake dubawa na 2014 zai yi yiwuwa ya ba da ingantattun abubuwa akan wanda ya gabace shi (Sake Dubawa 1) a fagage kamar mafi girman ingancin haske, mafi kyawun daidaiton launi (ƙaramin rarrabuwa), ko ingantaccen aikin zafi. Idan aka kwatanta da LED na ƙarni na farko (kafin 2010), fa'idodin za su kasance ma fi bayyana a cikin inganci, aminci, da farashin kowane lumen.

10. Tambayoyin da ake yawan yi (Bisa Sigogi na Fasaha)

Q: Me ya sa LED dina ya yi duhu fiye da yadda ake tsammani?

A: Mafi yawan dalili shine yawan zafin mahada. Bincika ƙirar zafin ku. Hakanan, tabbatar da cewa kuna tuƙi shi a daidaitan halin yanzu kuma kwandon ƙarfin lantarki na gaba ya dace da kewayon ƙarfin fitarwa na direban ku.

Q: Zan iya tuƙi wannan LED kai tsaye tare da samar da 3.3V ko 5V?

A: Ba za a iya dogaro da shi ba tare da tsarin iyakancewa halin yanzu ba. Ƙarfin lantarki na gaba yana bambanta da zafin jiki da kwandon. Dole ne ku yi amfani da resistor na jere ko, zai fi dacewa, direban halin yanzu na yau da kullun don tabbatar da aiki mai tsayi da aminci.

Q: Me "Sake Dubawa 2" ke nufi a gare ni a matsayin mai ƙira?

A: Yana nuna sabuntawa ga samfurin. Dole ne ku tuntubi cikakken takardar bayanin Sake Dubawa na 2, saboda za a iya samun canje-canje ga sigogi na lantarki, lambobin rarrabuwa, ko juriya na injiniya wanda zai iya shafar ƙirar ku. Koyaushe yi amfani da sabon sake dubawa.

11. Amfanin Aiki na Aikace-aikace

Labari: Ƙirar Fitilar LED Panel don Hasken Ofis.

Mai ƙira ya zaɓi wannan LED bisa ga ingancinsa da zafin launi (misali, 4000K, CRI >80). Sun ƙera PCB na ƙarfe-core (MCPCB) don sarrafa zafi, suna sanya LED da yawa a cikin tsarin jere-layi daya. Sun zaɓi LED daga kwandon ƙarfin haske da launi iri ɗaya don tabbatar da daidaiton haske da launi a fadin panel. An zaɓi direban LED na halin yanzu na yau da kullun tare da gyaran factor ɗin wutar lantarki (PFC) don cika ka'idojin inganci. An shirya bayanin siffar reflow daga sashe na 6.1 cikin tanda na layin taro. Samfurin ƙarshe ya cimma maƙasudin lumens, inganci (lm/W), da ƙayyadaddun ingancin launi don kasuwar hasken ofis.

12. Ka'idar Aiki

LED diode ne na semiconductor. Lokacin da aka yi amfani da ƙarfin lantarki na gaba a kan mahadar p-n, electrons da ramuka suna sake haɗuwa a cikin kayan semiconductor. Wannan tsarin sake haɗuwa yana sakin makamashi a cikin nau'in photons (haske). Takamaiman tsawon zango (launi) na hasken da aka fitar an ƙaddara shi ta hanyar ƙarfin bandgap na kayan semiconductor da aka yi amfani da su (misali, Gallium Nitride don shuɗi, Aluminum Gallium Indium Phosphide don ja). Fararen LED yawanci ana ƙirƙira su ta hanyar lulluɓe guntu LED shuɗi da phosphor rawaya; wasu daga cikin hasken shuɗi ana canza su zuwa rawaya, kuma cakuda shuɗi da hasken rawaya ana ganinsa a matsayin fari. Sauran hanyoyin suna amfani da guntu ja, kore, da shuɗi (RGB) haɗe.

13. Trends na Ci gaba

Kamar yadda kwanan fitar da takardar na 2014, manyan abubuwan da suka faru a fasahar LED sune:

Ƙara Ingantaccen Aiki:Ci gaba mai dorewa a cikin lm/W ta hanyar ingantaccen ƙirar guntu, phosphors, da fakiti.

Ingantaccen Ingancin Launi:Ci gaban babban CRI da fararen LED masu daidaitawa don aikace-aikacen haske masu inganci.

Ƙananan Girma:Ci gaban ƙananan fakiti masu ƙarfi kamar 2835 (2.8mm x 3.5mm) wanda ya fara maye gurbin tsohon fakiti na 3528.

Rage Farashi:Tattalin arzikin sikelin da ingantattun masana'antu suna rage farashin kowane lumen, suna haɓaka karɓar LED a cikin hasken gabaɗaya.

Haske Mai Hikima:Haɗin farko na na'urorin lantarki masu sarrafawa da ka'idojin sadarwa (kamar DALI) don duhu da daidaita launi, suna share fagen tsarin haske mai haɗin kai.