Ubuchwepheshe ngemuva kokukhanyisa kwe-LED okwamanje bubhekene nenkathi yokuthuthukiswa okusheshayo, futhi ukusebenza kahle okukhanyayo kuyaqhubeka nokuthuthuka. Njalo eminyakeni emibili, inani le-flux elikhanyayo elingakhiqizwa idivayisi yephakeji ye-LED eyodwa likhuphuka ngokuphindwe kabili. Kusukela ngeminyaka yawo-1980, kube nokukhula kancane kancane ekugqugquzeleni ukusetshenziswa kwemishini efakwe phezulu ekukhiqizeni ama-LED. Uma kuziwa ekukhanyeni, i amandla aphezulu e-SMD LED okwakhiqizwa kamuva yilokho okusetshenziselwa ukukhanyisa amaphaneli emoto, amalambu amabhuleki, futhi selulelwe nasezintweni zokukhanyisa ezivamile.
Uma kubonwa ngombono womhlaba wonke, ukukhiqizwa kokupakisha e-Chinese Taiwan kubalelwa kumaphesenti angamashumi ayisithupha esabelo somhlaba. Izingxenye zokukhiqiza nokumaketha zochungechunge lwezimboni azishintshile, ikakhulukazi mayelana nomkhakha wokupakisha, futhi kukhona ukuhlukaniswa okucacile kwabasebenzi phakathi kwamabhizinisi akhuphukayo, aphakathi nendawo, naphansi. Uma umkhiqizo uyiswa ezweni elikhulu, izindleko zokukhiqiza zizokwehla, okuwuvumela ukuthi uqhudelane kangcono namanye amazwe. Kulindeleke ukuthi phakathi neminyaka emihlanu kuya kweyishumi ezayo, iYangtze River Delta, Pearl River Delta, Fujian, nezinye izindawo kuzoba yizikhungo zomhlaba wonke zokukhiqiza Ukufakwa kwe-UV LED
Imakethe yendawo ye-SMD LED izinzile muva nje uma kubhekwa imakethe yezwe laseChina.
I-phosphor ne-epoxy resin ziqala ukulungiselelwa ukwenza isikhunta se-SMD LED, okuyisinyathelo sokuqala senqubo ye-encapsulation. Okulandelayo, i-epoxy resin kanye ne-phosphor powder kuhlanganiswa ukwenza ikhekhe leglue, elibe selinamathela ku-chip. Ekugcineni, isikhala esisele esizungeze i-chip sigcwaliswa nge-epoxy resin ukuze kwakhiwe i-LED ehlanganisiwe ye-SMD.
Namuhla, i-SMD LED ejwayelekile kakhulu emakethe ihlanganiswe nama-chips amathathu e-LED, futhi izikhonkwane eziyisithupha zinwetshiwe, ezixhunywe ebusweni bebhodi lesifunda le-PCB. Le LED inosayizi wangaphandle ongu-50mm x 50mm. Iboshelwe ngokuqondile endaweni yesinki yokushisa kusetshenziswa okunamathelayo okubamba ukushisa, okuholela ekuthuthukisweni okuphawulekayo kokuchithwa kokushisa, ukwethembeka, kanye nokunciphisa izinga lokubola kokukhanya. Ama-substrates enziwe ngezinhlanganisela ze-metal-ceramic ezine-conductivity enhle ye-thermal ngokuvamile yizo ezisetshenziselwa ama-LED anamandla aphezulu. Lezi izici eziyinhloko:
(1) Izinga eliphezulu le-thermal conductivity kanye nokumelana nokushisa okuphansi;
(2) Ukuhambisana kwe-coefficient yokwanda kwe-thermal (TCE: 6.2);
(3) Anti-ultraviolet;
(4) I-Resistance Corrosion, kanye nokungabikho kokuphuzi;
(5) Ukuhambisana nenqubo ebekwe yi-ROHS;
(6) Ikhono lokumelana namazinga okushisa aphezulu.
Ukumelana okushisayo kwe-encapsulation ye-LED kunomthelela omkhulu esikhathini sokuphila se-chip ye-LED, ikakhulukazi ngokuphathelene ne-chip ye-LED engaphansi kwamandla aphezulu. Isakhiwo sobakaki wokupakisha sinquma izindleko nokusebenza kokukhipha ukushisa kwemikhiqizo ye-encapsulation ye-LED, futhi ukwakheka kukabakaki wokupakisha kuyashintsha kuya kosayizi omncane, ukujiya okuzacile, nokuhlakazeka okuhle kokushisa. Lokhu kubalulekile ngoba izindleko zemikhiqizo ye-encapsulation ye-LED zilingana ngokuqondile nokusebenza kokukhipha ukushisa komkhiqizo.
Lapho upakisha ama-chips engeziwe e-LED ku-LED eyodwa ye-SMD, indaba yokukhishwa kokushisa yinto okufanele icatshangelwe. I-ultra-low-low thermal resistance ehlinzekwa ngama-LED ama-SMD anamandla amakhulu ama-substrates awo enziwe ngezinhlanganisela zensimbi-ceramic ze-thermal conductivity ephezulu kuyinzuzo ebaluleke kakhulu enikezwa yilawa malambu. Ngenxa yobukhulu bayo obuhlangene kanye nephrofayili encanyana, ukumelana nokushisa okuphansi kwe-ultra-low kanye nephakeji ye-chip ye-LED enamandla amakhulu ifaneleka kangcono ukusetshenziswa ezinhlelweni ezinesikhala esitholakalayo esilinganiselwe. Izicelo eziningi zingazuza kakhulu ngokusebenzisa lolu hlelo lokusebenza.
Idivayisi ye-surface-mount device (SMD) LED inamathiselwe phezulu ebhodini lesekethe, okuyenza ifaneleke ukucubungula ubuchwepheshe obuphezulu (SMT) kanye ne-reflow soldering. Ama-LED anama-surface-mount diode (SMD) anikezela ngentuthuko ngokuya ngokukhanya, i-engeli yokubuka, ukucaba, ukwethembeka, nokungaguquguquki. Ukumelana kwayo nokudlidliza okuhle kakhulu, izinga eliphansi lephutha elihlangene le-solder, nezici eziphakeme zokuvama kwemvamisa ezinye zezinzuzo zayo uma ziqhathaniswa nalezo zamanye amadivaysi apakishiwe.
I-in-line LED isebenzisa i-potting njengento yokupakisha. Isinyathelo sokuqala enqubweni yokufaka izimbiza ukujova i-epoxy resin ewuketshezi emgodini wesikhunta se-LED, okulandelwa ukufakwa kobakaki be-LED abashiselwe ngokucindezela. Ngemuva kwalokho, umhlangano ufakwa kuhhavini ukuze uphulukise i-epoxy resin, futhi ekugcineni, i-LED yakheka ngemva kokususwa emgodini wokubunjwa. Isabelo sayo semakethe esiqinile singabalelwa kukho kokubili indlela yokukhiqiza eqondile kanye namanani okuncintisana.
Ngenxa yokwanda ngokushesha kwezomnotho emhlabeni wonke, okwamanje kunesidingo esiphuthumayo sokuthola ikhambi lenkinga yomhlaba wonke yokuntuleka kwamandla okwanele. Ukusetshenziswa kokukhanya cishe kungamaphesenti angamashumi amabili okusetshenziswa kukagesi kukonke. Enye yezinto ezibaluleke kakhulu ezingenziwa ukonga amandla ukwehlisa inani lamandla asetshenziselwa ukukhanyisa. Ushintsho olusuka emithonjeni yokukhanya evamile lusheshiswa ukusetshenziswa kwezibani ze-LED ezonga amandla, ezisebenza njengokuthatha indawo yokukhanyisa okuvamile kwe-incandescent.
I-Zhuhai Tianhui Electronic Co., Ltd., okukodwa kwe Abakhiqizi be-uv , igxile ekuhlanzweni komoya kwe-UV LED, inzalo yamanzi ye-UV LED, ukuphrinta kwe-UV LED nokuphulukisa, uv uhola i-diode , uv uhola module, nezinye izimpahla. InoCwaningo olunekhono kanye nokuqamba izinto ezintsha kanye nabasebenzi bokuthengisa ukuze banikeze abathengi Izixazululo ze-UV LED, futhi izimpahla zayo zizuze ukudunyiswa kwenani elikhulu lamakhasimende. Ngokusebenza okuphelele kokukhiqiza, ikhwalithi engaguquki nokwethembeka, kanye nezindleko ezingabizi, i-Tianhui Electronics isivele isebenza emakethe yephakheji ye-UV LED. Ukusuka kumaza wamaza amafushane kuya kumade, izimpahla zifaka i-UVA, i-UVB, ne-UVC, enemininingwane egcwele ye-UV LED esukela kokuphansi kuye emandleni aphezulu.