Cov khoom siv hluav taws xob tsis muaj hluav taws xob (Fanless PSUs) yog tsim los ua haujlwm yam tsis siv cov kiv cua tshuab cua txias. Hloov chaw, lawv cia siab rau cov txheej txheem kev ua kom txias txias thiab tsim kom muaj txiaj ntsig zoo kom tswj tau cov cua sov kom zoo thiab ua haujlwm ruaj khov. Kab lus no muab kev saib tob tob ntawm cov hauv paus ntsiab lus ntawm kev ua kom txias txias thiab nws daim ntawv thov hauv cov khoom siv hluav taws xob tsis muaj kiv cua.Cia peb tos ntsoov rau Owon yav tom ntejSPS fanless fais fab mov.
Cov ntsiab cai tseem ceeb ntawm Passive Cooling
Passive txias cia siab rau thermal conduction thiab natural convection kom dissipate tshav kub. Ob lub tshuab no ua haujlwm ua ke kom hloov tau cov cua sov los ntawm cov khoom siv hluav taws xob sab hauv mus rau ib puag ncig sab nraud.
Thermal conduction
Thermal conduction yog cov txheej txheem uas cov cua sov hloov mus rau hauv cov khoom siv los ntawm qhov chaw siab kub mus rau qhov chaw qis. Hauv cov khoom siv hluav taws xob tsis muaj hluav taws xob, cov khoom siv hluav taws xob tsim hluav taws xob (xws li lub zog hloov hluav taws xob, MOSFETs, thiab inductors) txuas nrog cov khoom siv hluav taws xob ua los ntawm cov khoom siv thermal conductivity, xws li txhuas lossis tooj liab. Cov ntaub ntawv no sai sai nqus thiab hloov cov cua sov, tiv thaiv tshav kub ntawm qhov chaw.
Ntuj Convection
Natural convection cuam tshuam nrog kev txav ntawm cov kua (cua lossis kua) tshwm sim los ntawm qhov sib txawv ntawm qhov kub thiab txias, uas nqa cov cua sov mus. Hauv cov khoom siv hluav taws xob tsis muaj hluav taws xob, heatsinks hloov cov cua sov mus rau lawv qhov chaw, uas yog tom qab ntawd dissipated rau hauv cov huab cua ib puag ncig los ntawm ntuj convection. Heatsinks feem ntau yog tsim los nrog cov qauv fin kom ua kom thaj chaw loj tshaj plaws thiab txhim kho kev ua haujlwm zoo ntawm ntuj.
Daim ntawv thov ntawm Passive Cooling Technologies hauv Fanless Fais Fab Khoom
Heatsink Design
● Cov Heatsinks loj: Cov khoom siv hluav taws xob tsis muaj kiv cua feem ntau siv cov heatsinks loj los ua kom thaj chaw saum npoo av kom sov. Cov heatsinks no feem ntau yog ua los ntawm cov khoom siv thermal conductivity xws li txhuas lossis tooj liab kom ntseeg tau tias cov cua sov hloov mus sai.
●Fin Structures: Lub fin tsim ntawm cov heatsinks ho nce qhov chaw saum npoo av, optimizing cua ntws txoj kev thiab txhim kho ntuj convection. Qhov kev tsim no tso cai rau lub heatsink kom zoo dissipate cua sov rau hauv huab cua.
Comprehensive Thermal Management Design
●Optimized PCB Layout: Cov ntawv luam tawm Circuit Board (PCB) layout nyob rau hauv cov khoom siv hluav taws xob tsis muaj kiv cua yog tsim los kom txo qis thermal cuam tshuam ntawm cov khoom siv hluav taws xob. Los ntawm kev nthuav tawm cov khoom siv hluav taws xob siab thiab ua kom zoo dua cov txheej txheem thermal, cov cua sov tuaj yeem ua tau zoo rau lub heatsink.
●Enclosure Design: Lub kaw lus ntawm lub tshuab hluav taws xob tsis muaj hluav taws xob tsis yog tsuas yog muab kev tiv thaiv lub cev nkaus xwb tab sis kuj tseem pab tiv thaiv cov cua sov. Hlau enclosures tuaj yeem ua ib feem ntawm cov heatsink, ua kom sov rau sab nraud ib puag ncig.
Qhov zoo thiab qhov nyuaj ntawm Passive Cooling
Qhov zoo
● Ua haujlwm ntsiag to: Tsis muaj kiv cua tshem tawm suab nrov, ua kom tsis muaj hluav taws xob tsis muaj hluav taws xob zoo tagnrho rau ib puag ncig uas ua haujlwm ntsiag to yog qhov tseem ceeb.
●High Reliability: Yog tsis muaj cov khoom siv tshuab kiv cua, qhov yuav ua rau tsis ua hauj lwm raug txo, ua kom muaj kev ntseeg tau zoo thiab lub neej ntev ntawm cov khoom siv hluav taws xob.
● Kev tu qis: Cov qauv tsim tsis muaj kiv cua txo qhov xav tau kev tu thiab hloov cov kiv cua, txo cov nqi tu thiab kev siv zog.
● Cov plua plav thiab dej tsis kam: Cov khoom siv hluav taws xob tsis muaj kiv cua feem ntau muaj kev sib khi zoo dua, tiv thaiv plua plav thiab ya raws, thiab ua rau lawv haum rau qhov chaw hnyav.
Kev sib tw
●Limited Cooling Capacity: Qhov ua tau zoo ntawm kev ua kom txias txias yog txwv los ntawm kev ua haujlwm ntawm cov khoom siv hluav taws xob thiab cov khoom siv thermal. Nyob rau hauv high-power density thiab high ambient kub scenarios, txias peev xwm yuav tsis txaus.
●Design Complexity: Cov khoom siv hluav taws xob tsis muaj hluav taws xob xav tau kev tsim qauv zoo ntawm cov txheej txheem thermal thiab cov txheej txheem kev teeb tsa, ua kom cov qauv tsim tsis yooj yim thiab tus nqi.
Cov khoom siv hluav taws xob tsis muaj hluav taws xob siv cov thev naus laus zis ua kom txias kom ua tiav cov cua sov kom zoo thiab ua haujlwm ruaj khov yam tsis xav tau cov kiv cua. Lawv ua haujlwm ntsiag to, muaj kev ntseeg siab, thiab kev saib xyuas qis ua rau lawv haum rau ntau yam kev siv. Txawm hais tias muaj qee qhov kev sib tw, kev txhim kho heatsink tsim, siv cov thev naus laus zis thev naus laus zis, thiab cov tswv yim tswj hwm kev tswj hwm zoo tuaj yeem txhim kho kev ua haujlwm txias ntawm cov khoom siv hluav taws xob tsis muaj hluav taws xob, ua tau raws li qhov xav tau ntawm ntau yam kev thov.
