Luminous Diode 3535 Chidziwitso Chogwiritsa Ntchito

3535 nyali mikanda LED nyali ndi mwayi wapadera, koma LED mikanda nyali ndi pachiopsezo semiconductor mankhwala, choncho tiyenera kusamala pamene ntchito mankhwala LED. Tsopano tifotokoza mwachidule njira zodzitetezera za LED. Chonde yonjezerani kufunika kwake. (1) Mphamvu zamagetsi ziyenera kugwiritsidwa ntchito mumagetsi a DC. Ena opanga opanga ayenera kugwiritsidwa ntchito kuti achepetse mtengo wazinthu. “Kutsutsana ”Mphamvu pa zinthu za LED mwa njira, zomwe zidzakhudza mwachindunji moyo wa zinthu za nyali za LED. Kutengera magetsi apadera osinthira (makamaka gwero lokhazikika) kuzinthu zopangira mikanda ya nyali ya LED sikungakhudze moyo wautumiki wa chinthucho, koma mtengo wake ndi wokwera kwambiri. (2) Njira zotsutsana ndi electrostatic ziyenera kuchitidwa pokonza ndi kupanga mikanda ya nyali ya LED. Magolovesi, ndi zina zotero, omwe ali ndi mikhalidwe akhoza kuikidwa ndi mafani a anti-static ion, ndikuwonetsetsa kuti chinyezi cha msonkhanowu chimakhala pafupifupi 65%, kuti mpweya usakhale wouma kwambiri kuti upange magetsi osasunthika, makamaka obiriwira. Mikanda ya nyali ya LED ndiyosavuta kuonongeka ndi kuwonongeka kwa electrostatic. Kuphatikiza apo, maluso osiyanasiyana -grade LED anti -static amathanso amasiyana. Mikanda ya nyali ya LED yokhala ndi kalasi yapamwamba iyenera kukhala yamphamvu. Pakhoza kukhala abwenzi ambiri omwe sadziwa bwino magetsi osasunthika. Ndidzawonetsa chidziwitso cha magetsi osasunthika mwatsatanetsatane apa: chinsinsi cha magetsi osasunthika ndi ndalama zowonjezera. Charge ndi kuchuluka kwamphamvu kwa magetsi osasunthika. Chingelezi chimatchedwa ESD. Ndalama zokhudzana ndi zomwe zingatheke, magetsi, zamakono, ndi zina zotero. ndi kuchuluka kwakuthupi komwe kumachitika chifukwa cha kukhalapo kwa mtengo kapena kusuntha kwa mtengowo. Mavuto ambiri a electrostatic amayamba chifukwa cha anthu opanda chidziwitso cha ESD. Ngakhale pano, anthu ambiri amakayikira kuti ESD idzawononga zinthu zamagetsi. Izi ndichifukwa chakuti kuwonongeka kwakukulu kwa ESD kumachitika pansi pa kumverera kwa munthu, chifukwa thupi la munthu limaganiziridwa kuti voteji ya static discharge ili pafupi ndi 3KV, ndipo zida zambiri zamagetsi zidzawonongeka zikakhala mazana a volts kapena ma volts ambiri. Kawirikawiri, pamene zipangizo zamagetsi zawonongeka ndi ESD Palibe malire odziwikiratu, ndipo chigawocho chimayikidwa pa PCB chisanazindikire. Zotsatira zake, pali mavuto ambiri, ndipo kusanthula kumakhala kovuta. Makamaka pakuwonongeka komwe kungachitike, ndizovuta kuyeza momwe amagwirira ntchito ngakhale ndi zida zolondola, kotero onse opanga zamagetsi ndi opanga amakayikira ESD. M'zaka zaposachedwa, kuyesera kwatsimikizira kuti izi zitha kuwonongeka kudzakhala Kudalirika kumachepa kwambiri. (3) Kutentha kwa mikanda ya nyali ya LED kuyenera kulabadira kuwonjezeka kwa kutentha kumapangitsa kukana kwamkati kwa mikanda ya nyali ya LED kukhala yaying'ono. Pambuyo pa kutentha kwa chilengedwe cha dziko lakunja, kukana kwamkati kwa mikanda ya nyali ya LED kudzachepetsedwa. Pakalipano ikukwera, pamene ntchito yamakono ikupitirira ntchito yake yovotera, idzakhudza moyo wautumiki wa zinthu za LED, zomwe zidzayambika kwambiri ndi mikanda ya nyali ya LED. “Kupsa ”Choncho, ndi bwino kugwiritsa ntchito magetsi a Hengli kuti awonetsetse kuti magetsi a LED sakukhudzidwa ndi kutentha kwakunja. Kutentha kwa mikanda ya nyali ya LED ndichinthu chofunikira kwambiri chomwe chimakhudza moyo wa LED. Chonde chisamalirani ku icho. (4) Kusindikiza kwa zinthu za nyali za LED, mosasamala kanthu za chopangidwa ndi nyali ya nyali ya LED, bola ngati ikugwiritsidwa ntchito panja, ikukumana ndi vuto la kusindikiza kwa madzi ndi chinyezi. Ngati sichisamalidwa bwino, chidzakhudza mwachindunji moyo wautumiki wa zinthu za LED. Tsopano pali ochepa opanga omwe ali ndi zofunikira zamtundu wapamwamba amatengera chikhalidwe cha epoxy resin “Madzi ”Njira ndiyo kusindikiza zinthu za LED. Njira iyi ndiyosavuta kugwiritsa ntchito. Sizoyenera kwambiri pazogulitsa za nyali za LED zokhala ndi voliyumu yayikulu, komanso zimawonjezera kulemera kwa chinthucho. (5) Mawonekedwe a mikanda ya nyali ya LED sangathe kupitirira IF panopa ya mikanda ya nyali ya LED. (6) LED nyali mikanda ayenera kulabadira mikanda LED nyali sayenera kukhala pafupi kwambiri ndi colloid pamene ngodya kapena ngodya akupindika. Iyenera kusungidwa patali kuposa 2mm kuchokera ku colloid. Kuchuluka kwa zopindika pamalopo sikungakhale kupitilira katatu, ndipo ngodya imapindika 90 °Bwererani ku malo oyamba kamodzi. (7) Kutentha kwa kuwotcherera kwa kutentha kwa kutentha ndi pafupifupi 260 C, nthawiyo imayendetsedwa mkati mwa 5s, ndipo malo otsekemera ali pamwamba pa 2.5mm kuchokera pansi pa colloid.