Ma module a LED opangidwa ndi CSP-COB
Chidule: Kafukufuku wasonyeza kugwirizana pakati pa mtundu wa kuwala kwa kuwala ndi circadian cycle ya anthu.Kusintha kwamtundu ku zosowa zachilengedwe kwakhala kofunika kwambiri pakugwiritsa ntchito kuyatsa kwapamwamba kwambiri. zogwirizana ndi sensitivity yaumunthu.Kuunikira kwapakati pamunthu (HCL) kumafunika kupangidwa molingana ndi malo osinthika monga malo ogwiritsira ntchito mosiyanasiyana, makalasi, chisamaliro chaumoyo, ndikupanga mawonekedwe owoneka bwino komanso kukongola.Ma module a tunable a LED adapangidwa pophatikiza ukadaulo wa chip scale (CSP) ndi ukadaulo wa chip on board(COB).Ma CSP amaphatikizidwa pa bolodi la COB kuti akwaniritse kachulukidwe wamkulu wamagetsi ndi kufanana kwamtundu, kwinaku akuwonjezera ntchito yatsopano ya tunability yamtundu. Gwero lowunikira lomwe litha kutha kusinthidwa mosalekeza kuchokera pakuwala kowala, kozizira bwino masana mpaka kuzimiririka, kuyatsa kotentha madzulo, Pepalali limafotokoza mwatsatanetsatane kapangidwe kake, kachitidwe, ndi magwiridwe antchito a ma module a LED komanso momwe amagwiritsidwira ntchito mu kuwala kotentha kwa LED kutsika ndi kuwala kozungulira.
Mawu ofunikira:HCL, Circadian rhythms,Tunable LED, Dual CCT,Warm Dimming,CRI
Mawu Oyamba
LED monga tikudziwira kuti yakhalapo kwa zaka zoposa 50.Kukula kwaposachedwa kwa ma LED oyera ndizomwe zabweretsa pamaso pa anthu monga m'malo mwa kuwala kwina koyera.Kuyerekeza ndi magwero achikhalidwe, LED sikuti imangopereka ubwino wopulumutsa mphamvu ndi moyo wautali, komanso imatsegula chitseko cha Pali njira ziwiri zazikulu zopangira ma diode oyera otulutsa kuwala (WLEDs) omwe amatulutsa kuwala koyera kwambiri. Imodzi ndiyo kugwiritsa ntchito ma LED omwe amatulutsa mitundu itatu yayikulu—yofiira, yobiriwira, ndi yabuluu. -ndipo kenaka sakanizani mitundu itatu kuti ipange kuwala koyera. Ina ndiyo kugwiritsa ntchito zipangizo za phosphor kutembenuza kuwala kwa buluu kapena violet LED kukhala kuwala koyera, mofanana ndi momwe nyali ya fulorosenti imagwirira ntchito. kuti 'kuyera' kwa kuwala kopangidwa kumapangidwa kuti kugwirizane ndi maso a munthu, ndipo malingana ndi momwe zinthu zilili sizingakhale zoyenera nthawi zonse kuziganizira ngati kuwala koyera.
Kuwunikira kwanzeru ndi gawo lofunikira kwambiri panyumba yanzeru komanso mzinda wanzeru masiku ano.Ochulukirachulukira opanga amatenga nawo gawo pakupanga ndi kukhazikitsa zowunikira mwanzeru muzomangamanga zatsopano.Zotsatira zake ndikuti njira zambiri zoyankhulirana zimakhazikitsidwa mumitundu yosiyanasiyana yazinthu. ,monga KNx ) BACnetP',DALI，ZigBee-ZHAZBA'，PLC-Lonworks, etc.Vuto limodzi lalikulu muzinthu zonsezi ndi loti sangathe kugwirizanitsa wina ndi mzake (ie, kusagwirizana kochepa ndi kuwonjezereka).
Zounikira za LED zotha kupereka mitundu yowala zowala zakhala zikugulitsidwa pamsika kuyambira masiku oyambilira a solid-state lighting (SSL). specifier ngati kukhazikitsa kuli kopambana.Pali magulu atatu ofunikira a mitundu yosinthira mitundu mu zounikira za LED: kukonza koyera, kufiyira-kutentha, ndikusintha kwamitundu yonse.Magawo atatuwa amatha kuwongoleredwa ndi chowulutsira opanda zingwe pogwiritsa ntchito Zigbee, Wi-Fi, Bluetooth kapena ma protocol ena, ndipo ndi hardwired kumanga power.Because mwa njira zimenezi, LED amapereka njira zotheka kusintha mtundu kapena CCT kukumana anthu circadian kayimbidwe.
Ma Circadian Rhythms
Zomera ndi zinyama zimasonyeza machitidwe a kusintha kwa khalidwe ndi thupi pa nthawi yozungulira pafupifupi maola 24 yomwe imabwereza masiku otsatizana-awa ndi amtundu wa circadian.
Circadian rhythm imayendetsedwa ndi Melatonin yomwe ndi imodzi mwa timadzi tambiri tomwe timapanga muubongo.Ndipo kumapangitsanso kugona. Melanopsin receptors amayika gawo lozungulira ndi kuwala kwa buluu akamadzuka pozimitsa kupanga melatonin". kulowa mokwanira m'magawo osiyanasiyana a tulo, yomwe ndi nthawi yovuta kwambiri yobwezeretsa thupi la munthu. Kuwonjezera apo, kusokonezeka kwa circadian kumapitirira kuposa kulingalira masana ndi kugona usiku.
Zokhudza zamoyo mwa anthu zimatha kuyezedwa m'njira zingapo nthawi zambiri, kugona/kudzuka, kutentha kwa thupi, kukhazikika kwa melatoninconcentration, kuchuluka kwa cortisol, komanso kukhazikika kwa Alpha amylase8. kuwala kwamphamvu, kugawa kwa sipekitiramu, nthawi ndi nthawi kumatha kukhudza dongosolo la circadian la munthu.Nthawi ya kuwala imatha kupita patsogolo kapena kuchedwetsa wotchi yamkati".Mayimbidwe a circadian amakhudza momwe munthu amagwirira ntchito komanso chitonthozo, etc. The human circadian system is most sensitive tolight at 460nm (blue region of visualspectrum), pamene makina owonera amakhala okhudzidwa kwambiri. mpaka 555nm (dera lobiriwira) Ndiye momwe mungagwiritsire ntchito CCT yosinthika komanso kulimba kuti mupititse patsogolo moyo wabwino ikukhala yofunika kwambiri. .
Fig.1 Kuwala kumakhala ndi zotsatira zapawiri pa mbiri ya melatonin ya maola 24, zotsatira zowopsa ndi Phase-Shifting effect.
Mapangidwe a paketi
Mukasintha kuwala kwa halogen wamba
nyali, mtundu udzasinthidwa.Komabe, LED wamba sangathe kuyimba kutentha mtundu pamene kusintha kuwala, kutsanzira kusintha komweko kwa kuyatsa wamba.M'masiku oyambilira, mababu ambiri adzagwiritsa ntchito motsogozedwa ndi ma CCT LED osiyanasiyana ophatikizidwa pa PCB boardto
sinthani mtundu wowunikira posintha kuyendetsa galimoto.Pamafunika kapangidwe kagawo kakang'ono kagawo kakang'ono kuti muwongolere CCT, yomwe si ntchito yophweka kwa wopanga luminaire.Monga momwe mapangidwe owunikira akupita patsogolo, zowunikira zowunikira monga nyali zamawanga ndi nyali zotsika, zimayitanira kukula kwazing'ono, ma module akulu a LED, Kuti kukhutitsa zonse zosintha mitundu komanso zofunikira pagwero la kuwala, ma COB amtundu wa tunable amawonekera pamsika.
Pali mitundu itatu yofunikira ya mitundu yosinthira mitundu, yoyamba, imagwiritsa ntchito CCT CSP yotentha komanso kulumikiza kwa CCT CsP pa bolodi la PCB molunjika monga momwe zasonyezedwera mu Chithunzi 2.Mtundu wachiwiri wosinthika wa COB wokhala ndi LES wodzazidwa ndi mikwingwirima yambiri ya CCT phosphor. siliconesas akuwonetsedwa mu Chithunzi
3.Ntchitoyi, njira yachitatu ndiyo kusakaniza ma LED ofunda a CCT CSP okhala ndi ma flip-chips a buluu ndi solder pafupi kwambiri ndi gawo lapansi. Kenako damu la silikoni lonyezimira loyera limaperekedwa kuti lizungulire ma CSP oyera ofunda ndi ma flip-chips abuluu. , imadzazidwa ndi phosphor yomwe ili ndi silicone kuti mutsirize module yapawiri ya COB monga momwe tawonetsera mu Fig.4.
Fig.4 Mtundu wofunda wa CSP ndi buluu flip chip COB (Structure 3- ShineOn development)
Poyerekeza ndi Kapangidwe 3, Kapangidwe 1 ali ndi zovuta zitatu:
(a) Kusakaniza kwa mitundu pakati pa magwero osiyanasiyana a kuwala kwa CSP mu CCTs zosiyana si yunifolomu chifukwa cha tsankho la phosphor silicone chifukwa cha chips cha magwero a kuwala kwa CSP;
(b) Gwero la kuwala kwa CSP limawonongeka mosavuta ndi kukhudza thupi;
(c) Kusiyana kwa gwero lililonse la kuwala kwa CSP ndikosavuta kutchera fumbi kupangitsa kuchepa kwa lumen ya COB;
Structure2 ilinso ndi zovuta zake:
(a) Kuvuta pakuwongolera njira zopangira ndi kuwongolera kwa CIE;
(b) Kusakaniza kwamitundu pakati pa zigawo zosiyana za CCT sikuli kofanana, makamaka kwa chitsanzo chapafupi cha munda.
Chithunzi 5 ikufanizira nyali za MR 16 zomangidwa ndi gwero la kuwala kwa Structure 3 (kumanzere) ndi Structure 1 (kumanja).Kuchokera pachithunzichi, titha kupeza kuti Structure 1 ili ndi mthunzi wopepuka pakati pa malo otulutsa, pomwe kufalikira kwamphamvu kwa Structure 3 ndikofanana.
Mapulogalamu
M'njira yathu pogwiritsa ntchito Structure 3, pali mitundu iwiri yosiyana yamitundu yowunikira komanso kuwongolera kowala.Mu dera la njira imodzi yomwe ili ndi zofunikira zoyendetsa galimoto, chingwe choyera cha CSP ndi chingwe cha blue flip-chip chimalumikizidwa mu parallel.Pali chotsutsa chokhazikika cha chingwe cha CSP.Ndi chotsutsa, kuyendetsa galimotoyo kumagawidwa pakati pa CSPs ndi tchipisi ta buluu zomwe zimapangitsa kusintha kwa mtundu ndi kuwala.Zotsatira zowonetsera mwatsatanetsatane zikuwonetsedwa mu Table 1 ndi Chithunzi 6. Mtundu wokhotakhota wamtundu umodzi wa ma circuits omwe akuwonetsedwa mu Chithunzi7.CCT ikuwonjezeka ngati kuyendetsa galimoto.Tazindikira machitidwe awiri okonzekera ndi imodzi yotsanzira mababu wamba wa halogen ndi inanso mizere mizere.Mitundu ya CCT yosinthika imachokera ku 1800K mpaka 3000K.
Table1.Kusintha kwa Flux ndi CCT ndikuyendetsa kwa ShineOn single-channel COB Model 12SA
Fig.7CCT ikukonzekera pamodzi ndi curve ya blackbody yoyendetsa galimoto mu COB (7a) yoyendetsedwa ndi njira imodzi ndi ziwirizo.
kukonza machitidwe okhala ndi kuwala pang'ono ponena za nyali ya Halogen(7b)
Mapangidwe ena amagwiritsa ntchito njira ziwiri zozungulira pomwe CCT yowongoka ndi yotakata kuposa njira imodzi. Chingwe cha CSP ndi zingwe zabuluu zamtundu wa blue flip-chip zimalekanitsidwa ndi magetsi pa gawo lapansi motero zimafunikira mphamvu yapadera. kuyendetsa mabwalo awiri pamlingo womwe mukufuna komanso chiŵerengero.Itha kusinthidwa kuchokera ku 3000k kupita ku 5700Kas yomwe ikuwonetsedwa mu Chithunzi 8 cha ShineOn dual-channel COB model 20DA.Table 2 inatchula zotsatira zatsatanetsatane zomwe zingathe kutsanzira kusintha kwa kuwala kwa tsiku kuyambira m'mawa mpaka madzulo. ma circuits, gwero loyatsa lotha kusunthali limathandizira kuwunikira kuwala kwa buluu masana ndikuchepetsa kuwunikira kwa buluu usiku, kupititsa patsogolo moyo wa anthu ndi magwiridwe antchito a anthu, komanso ntchito zowunikira mwanzeru.
Chidule
Tunable LED Modules anapangidwa ndi kuphatikiza
chip Scale Package (CSP) ndi ukadaulo wa chip on board (COB).CSPsand blue flip chip imaphatikizidwa pa bolodi la COB kuti ikwaniritse mphamvu zochulukirapo komanso kufanana kwamitundu, mawonekedwe anjira ziwiri amagwiritsidwa ntchito kuti akwaniritse kuwongolera kwa CCT pakugwiritsa ntchito ngati kuyatsa kwamalonda.Kapangidwe kanjira imodzi kumagwiritsidwa ntchito kukwaniritsa dim-to-warm function emulating halogen nyali muzogwiritsa ntchito ngati kunyumba ndi kuchereza alendo.
978-1-5386-4851-3/17/$31.00 02017 IEEE
Kuyamikira
Olembawo akufuna kuvomereza ndalama zochokera ku The National Key Research and Development
Pulogalamu ya China (No. 2016YFB0403900).Kuphatikiza apo, thandizo lochokera kwa ogwira nawo ntchito ku ShineOn (Beijing)
Technology Co, imavomerezedwanso moyamikira.
Maumboni
[1] Han, N., Wu, Y.-H.ndi Tang, Y,"Kafukufuku wa KNX Chipangizo
Node and Development Based on Bus Interface Module", 29th Chinese Control Conference (CCC), 2010, 4346 -4350.
[2] Park, T. ndi Hong, SH, "Pempho Latsopano la Network Management System kwa BACnet ndi Reference Model Yake", 8th IEEE International Conference on Industrial Informatics (INDIN), 2010, 28-33.
[3]Wohlers I, Andonov R. ndi Klau GW,“DALIX: Optimal DALI Protein Structure Alignment”, IEEE/ACM Transactions on Computational Biology and Bioinformatics, 10, 26-36.
[4] Dominguez, F, Touhafi, A., Tiete, J. ndi Steen haut, K.,
"Kukhala pamodzi ndi WiFi kwa Home Automation ZigBee Product", IEEE 19th Symposium on Communications and Vehicular Technology in the Benelux (SCVT), 2012, 1-6.
[5]Lin, WJ, Wu, QX ndi Huang, YW,"Automatic Meter Reading System Based on Power Line Communication ya LonWorks", International Conference on Technology and Innovation (ITIC 2009), 2009,1-5.
[6] Ellis, EV, Gonzalez, EW, et al, "Kuwongolera Masana ndi Ma LED: Kuunikira Kokhazikika kwa Thanzi ndi Ubwino", Proceedings of the 2013 ARCC Spring Research Conference, Mar, 2013
[7] Lighting Science Group White Paper,"Kuwala: Njira Yathanzi & Zopanga", Epulo 25, 2016.
[8] Figueiro, MG, Bullough, JD, et al, "Umboni woyamba wa kusintha kwa mawonekedwe a circadian system usiku", Journal of Circadian Rhythms 3:14.February 2005.
[9]Inanici, M,Brennan,M, Clark, E,"Spectral Daylighting
Zoyerekeza: Computing Circadian Light", Msonkhano wa 14 wa International Building Performance Simulation Association, Hyderabad, India, Dec.2015.