Kev tsim vaj tsev
Lub COB LED yog qhov tseem ceeb yog ib pob uas mounts ib tug ntom array ntawm LED tuag ntawm ib tug loj, tsis tshua muaj thermal resistance substrate. Nws tshem tawm qhov nruab nrab substrate ntawm qhov chaw mounted ntaus ntawv (SMD). Shortened thermal txoj kev ua kom muaj kev tswj xyuas thermal zoo thiab txo qis hauv pob profile. COB LEDs muaj ib lub voj voog ib leeg thiab ib khub ntawm anode (zoo electrode) thiab cathode (tsis zoo electrode) rau tag nrho cov pob tsis hais tus naj npawb ntawm diodes mounted ntawm lub substrate. Txhawm rau tsav lub siab ceev array ntawm semiconductor diodes, COB LEDs yuav tsum muaj qhov hluav taws xob siab siab (txog 72V). Kev sib txuas hluav taws xob ntawm cov diodes feem ntau yog kev sib xyaw ua ke ntawm kev sib txuas thiab sib txuas ua ke xws li kev tiv thaiv hluav taws xob tiv thaiv ib leeg LED qhib lossis luv luv tsis ua haujlwm. Lub suab me me (nruab nrab-rau-nruab nrab qhov sib nrug ntawm LEDs), qhov sib xws thiab luminous qhov emission nto yog. Txawm li cas los xij, pitches me me tuaj yeem cuam tshuam cov kab rov tav hluav taws xob rho tawm rau diodes neeg nyob sib ze los ntawm lwm cov diodes hauv txhua txoj kab rov tav. Cov txheej txheem ntim khoom COB LED yuav tsum muaj kev sib txuas ntawm cov hlau thiab kev sib txuas tuag kom muab hluav taws xob sib txuas thiab thermal conduction rau LED tuag. Tom qab kev sib txuas cov txheej txheem tuag matrix yog them nrog phosphor silicone sib tov los tsim lub teeb dawb thiab tiv thaiv cov nti array los ntawm ib puag ncig.
