Xaiv qhov tsim nyog tswj cov thermal tswj thiab cov khoom siv hluav taws xob kub rau peb-txheej PCBs yog qhov tseem ceeb los txo qhov kub thiab txias thiab ua kom muaj kev ruaj ntseg tag nrho. Raws li kev siv thev naus laus zis, cov khoom siv hluav taws xob ua me me thiab muaj zog dua, ua rau muaj hluav taws kub ntau ntxiv. Qhov no yuav tsum muaj cov tswv yim tswj xyuas thermal kom zoo los tiv thaiv overheating thiab cov khoom siv tsis ua haujlwm.Hauv tsab ntawv tshaj tawm no, peb yuav qhia koj txog yuav ua li cas xaiv cov ntaub ntawv zoo rau kev tswj xyuas thermal thiab cua sov dissipation hauv 3-txheej PCBs.
1. Nkag siab qhov tseem ceeb ntawm kev tswj xyuas thermal
Kev tswj cov cua kub yog qhov tseem ceeb los ua kom ntseeg tau kev ua haujlwm ntawm cov khoom siv hluav taws xob. Cov cua kub ntau dhau tuaj yeem ua rau txo qis kev ua haujlwm, siv hluav taws xob ntau ntxiv, thiab ua haujlwm luv luv. Kev ua kom txias kom zoo yog qhov tseem ceeb rau kev ua kom cov khoom kub nyob hauv qhov txwv tsis pub muaj kev nyab xeeb. Kev tsis saib xyuas kev tswj xyuas thermal tuaj yeem ua rau muaj kev ntxhov siab thermal, tivthaiv degradation, lossis txawm tias muaj kev puas tsuaj loj.
2. Kev txiav txim siab tseem ceeb rau cov khoom siv cua sov
Thaum xaiv cov khoom siv thermal tswj rau 3-txheej PCBs, cov hauv qab no yuav tsum xav txog:
- Thermal conductivity:Lub peev xwm ntawm cov khoom siv los ua kom sov tau zoo yog qhov tseem ceeb. High thermal conductivity sai sai dissipates tshav kub los ntawm cov khoom mus rau ib puag ncig ib puag ncig. Cov ntaub ntawv xws li tooj liab thiab txhuas yog dav siv vim lawv cov thermal conductivity zoo heev.
- Hluav taws xob rwb thaiv tsev:Txij li thaum 3-txheej PCB muaj ntau txheej txheej nrog ntau yam khoom siv hluav taws xob, nws yog ib qho tseem ceeb uas yuav tau xaiv cov khoom siv hluav taws xob zoo. Qhov no tiv thaiv luv luv Circuit Court thiab lwm yam hluav taws xob tsis zoo hauv qhov system. Cov khoom siv thermal tswj nrog cov khoom siv hluav taws xob zoo yog nyiam, xws li ceramics lossis silicon-based compounds.
- Compatibility:Cov ntaub ntawv xaiv yuav tsum sib haum nrog cov txheej txheem tsim khoom siv los tsim 3-txheej PCBs. Lawv yuav tsum tsim nyog rau lamination thiab muaj adhesion zoo rau lwm txheej ntawm PCB.
3. Thaum tshav kub kub dissipation khoom rau 3-txheej PCB
Txhawm rau txhim kho kev ua haujlwm thermal ntawm 3-txheej PCB, ntau yam khoom siv thiab thev naus laus zis tuaj yeem siv:
- Cov Khoom Siv Thermal Interface (TIM):TIM txo cov thermal tiv thaiv los ntawm kev txhim kho cua sov hloov ntawm cov khoom thiab cov dab dej kub. Cov ntaub ntawv no ua rau lub microscopic huab cua sib txawv ntawm qhov chaw thiab tuaj nyob rau hauv ntau hom, xws li thermal pads, gels, pastes thiab theem hloov cov ntaub ntawv. Kev xaiv TIM nyob ntawm cov khoom xws li thermal conductivity, sib xws thiab reworkability.
- Radiator:Radiator muab thaj chaw loj dua rau cov cua sov. Lawv feem ntau yog ua los ntawm txhuas lossis tooj liab thiab txuas rau cov khoom siv hluav taws xob uas siv cov nplaum nplaum los yog cov khoom siv hluav taws xob. Thaum tshav kub kub lub dab dej tsim thiab kev tso kawm yuav tsum tau optimized los xyuas kom meej cov cua kub dissipation zoo.
- Circuit Board Layout:Kev tsim PCB kom zoo ua lub luag haujlwm tseem ceeb hauv kev ua kom sov. Kev sib koom ua ke cov khoom siv hluav taws xob siab ua ke thiab ua kom muaj qhov sib txawv txaus ntawm lawv tso cai rau huab cua zoo dua thiab txo cov cua sov. Muab cov khoom cua sov tso ze rau ntawm txheej txheej ntawm PCB txhawb nqa cov cua sov kom zoo los ntawm kev sib txuas.
- Vias:Vias tuaj yeem tso tawm tswv yim los ua kom muaj cua sov los ntawm cov txheej txheem sab hauv ntawm PCB mus rau txheej txheej sab nrauv lossis mus rau lub dab dej kub. Cov vias no ua raws li cov txheej txheem thermal thiab txhim kho cov cua sov dissipation. Kev tso cai kom raug thiab kev faib tawm ntawm vias yog qhov tseem ceeb rau kev tswj xyuas thermal zoo.
4. Optimize system stability los ntawm kev tswj thermal zoo
Kev ruaj ntseg ntawm 3-txheej PCB system tuaj yeem txhim kho tau zoo los ntawm kev ua tib zoo xaiv thiab siv cov khoom siv thermal tswj kom tsim nyog. Kev tswj xyuas kom zoo thermal txo qhov kev pheej hmoo ntawm overheating thiab ua kom lub neej ntev ntawm cov khoom siv hluav taws xob, yog li ua kom muaj kev ntseeg tau.
Hauv cov ntsiab lus
Xaiv cov kev tswj xyuas thermal thiab cov khoom siv hluav taws xob kom raug rau 3-txheej PCB yog qhov tseem ceeb rau kev tiv thaiv overheating thiab ua kom muaj kev ruaj ntseg. Kev nkag siab txog qhov tseem ceeb ntawm kev tswj xyuas thermal, xav txog yam xws li thermal conductivity thiab hluav taws xob rwb thaiv tsev, thiab siv cov ntaub ntawv xws li TIMs, cua sov dab dej, optimized board layout, thiab strategically muab tso rau vias yog cov kauj ruam tseem ceeb nyob rau hauv kev ua tau zoo thermal tswj. Los ntawm kev saib xyuas kev tswj hwm thermal, koj tuaj yeem tiv thaiv kev ua haujlwm thiab kev ua haujlwm ntev ntawm koj cov khoom siv hluav taws xob.
Post lub sij hawm: Oct-05-2023
Rov qab
