Nws puas tuaj yeem kuaj xyuas qhov ua tsis tiav thaum ntxov LEDs?
Zoo li lwm yam khoom siv semiconductor, LEDs tuaj yeem kawm los ntawm kev tshuaj xyuas cov txheej txheem ntawm semiconductor diodes, triodes thiab kev sib xyaw ua ke kom tshem tawm cov khoom siv uas ua rau tsis ua haujlwm ntxov, yog li txo qis qhov tsis ua haujlwm ntawm cov khoom nkag mus rau cov neeg siv khoom.
Kev tshuaj ntsuam xyuas txoj hauv kev tau tsim los rau ntau yam kev ua tsis tiav. Cov kev siv feem ntau yog raws li hauv qab no:
(1) Electrothermal accelerated fatigue test
Nyob rau hauv txhua pawg ntawm cov khoom lag luam LED, qee cov qauv raug xaiv los ntawm qhov piv txwv tau teev tseg, thiab cov khoom tsis raug raug cuam tshuam los ntawm hluav taws xob thiab thermal kev nyuaj siab ntawm ntau dua, thiaj li ua tiav lub hom phiaj ntawm kev tsis lees paub. Piv txwv li, rau cov qauv siv hluav taws xob qis qis, ua IF=30mA, hnub nyoog ntawm qhov kub ntawm 85 degree rau ntau tshaj 240 teev, thiab tom qab ntawd sim thiab suav tus nqi tsis ua haujlwm kom pom tias nws tshaj qhov piv txwv.
(2) Environmental test
Kev ntsuam xyuas ib puag ncig yog simulate qhov ntxeem tau ntawm ntau yam kev tshwm sim ntuj raug pom hauv daim ntawv thov ntawm LEDs, thiab ntsuas qhov ua tau zoo ntawm LEDs.
Muaj peev xwm. Piv txwv li, yog tias LED siv rau hauv lub foob pob hluav taws xob, thaum lub foob pob hluav taws tau pib, LED yuav raug cuam tshuam rau ntau yam kev cuam tshuam xws li gravitational acceleration, shock vibration, thiab kub hloov, thiab cov ntaub ntawv uas tsim lub LED yuav muaj ntau yam kev ntxhov siab. poob siab. Yog tias cov txheej txheem kev ua haujlwm tsis raug tiv thaiv zoo, nws yuav ua rau LED tsis ua haujlwm.
Feem ntau hais lus, kev ntsuam xyuas ib puag ncig tsis yog txhua qhov kev sim ntawm LEDs tsim, vim tias qee qhov kev ntsuam xyuas yog qhov kev sim ua kom puas tsuaj, thiab cov qauv kuaj yuav muaj kev hloov pauv ntawm cov tsos thiab kev ua haujlwm. Cov khoom tsis tuaj yeem raug xa los ntawm lub hoobkas. Yog li ntawd, qhov kev ntsuam xyuas ib puag ncig tau txais cov qauv coj mus kuaj. Cov kev sim no feem ntau suav nrog:
(A) Kev ntsuas kub thiab qis qis - ntau qhov kev poob siab los ntawm qhov kub thiab txias mus rau qhov kub tsawg.
(B) Temperature cycling test - high temperature low temperature high temperature low temperature cycle.
(C) Tide kub ntsuas - khaws cov LED rau lub sijhawm teev tseg raws li qhov ntsuas kub thiab av noo.
(D) Kev ntsuas ntsev ntsev- khaws cia rau lub sijhawm teev nyob rau hauv qhov chaw ntawm cov ntsev ntsev.
(E) Xuab zeb thiab plua plav Test - Simulates cia lossis ua haujlwm hauv thaj chaw suab puam.
(F) Irradiation test - ntau lub teeb irradiation los soj ntsuam cov duab hluav taws xob ntawm LED.
(G) Kev vibration thiab kev poob siab - Kev sim simulate kev thauj mus los ntawm LEDs ntawm cov amplitudes thiab zaus.
(H) Drop test—poob los ntawm qhov siab ntau zaus.
(I) Lead Tensile thiab dabtsi yog khoov Test - Tensile lub zog xeem thiab dabtsi yog khoov xeem yog ua nyob rau hauv cov hlau lead ntawm cov LEDs.
(J) Centrifugal acceleration test-simulates lub peev xwm los tiv thaiv lub rotating lub xeev ntawm LED.
Thiab lwm yam los simulate ntau yam xwm txheej ntuj thiab siv ib puag ncig uas LEDs yuav ntsib, thiab sim lawv cov kabmob muaj peev xwm thiab kev ntxhov siab txuam nrog ntau yam khoom.
(3) Kev xeem lub neej
Txhawm rau ua raws li txoj cai hloov pauv ntawm lub teeb kev ua tau zoo ntawm LED nyob rau hauv rooj plaub ntawm kev siv mus sij hawm ntev, qhov system LED
Cov neeg tsim khoom yuav tsum ua kom lub zog ntev ntev ntawm cov qauv ntawm txhua pawg los tshuaj xyuas lub sijhawm "lub neej" ntawm cov khoom tshwj xeeb. Los ntawm kev taug qab thiab kev soj ntsuam ntawm ntau txhiab lossis txawm tias kaum tawm txhiab teev rau txhua qhov khoom ntawm cov txheej txheem sib txawv thiab cov khoom siv. Cov ntaub ntawv tau sau los ua cov txheeb cais ntawm "qhov nruab nrab lifespan" ntawm lawv txoj haujlwm xav tau.
Hauv kev sim lub neej, qhov ntsuas hluav taws xob feem ntau yog ntxiv rau LED raws li qhov xwm txheej ib puag ncig, thiab LED muaj zog thiab muaj hnub nyoog ntev.
