Ukuphazamiseka kwe-thermal kunye nokuchasana kwezinto eziphambili PCB uyilo

Ukuphazamiseka kwe-thermal yinto ebalulekileyo ekufuneka ipheliswe kuyilo lwePCB. Kucingelwa ukuba amacandelo kunye namacandelo anomlinganiselo othile wokushisa ngexesha lokusebenza, ngakumbi ukushisa okukhutshwa ngamacandelo anamandla kakhulu kuya kuphazamisa amacandelo ajikelezayo aphantsi kweqondo lokushisa. Ukuba ukuphazamiseka kwe-thermal akunyanzelwanga kakuhle, ngoko isiphaluka sonke Iipropati zombane ziya kutshintsha.

Ukuze ucinezele ukuphazamiseka kwe-thermal, oku kulandelayo kunokuthatyathwa:

(1) Ukubekwa kwezinto zokufudumeza

Musa ukuyibeka ebhodini, inokufuduswa ngaphandle kwetyala, okanye inokuthi yenziwe njengeyunithi esebenzayo eyahlukileyo, ibekwe kufuphi nomda apho kulula ukukhupha ukushisa. Ngokomzekelo, i-microcomputer power supply, i-tube ye-amplifier yamandla efakwe ngaphandle kwecala, njl. Ukongezelela, izixhobo ezinomlinganiselo omkhulu wokushisa kunye nezixhobo ezinokushisa okuncinci kufuneka zibekwe ngokwahlukileyo.

(2) Ukubekwa kwezixhobo eziphezulu zamandla

kufuneka zicwangciswe ngokusondeleyo emphethweni njengoko kunokwenzeka xa ibhodi eprintiweyo, kwaye kufuneka icwangciswe ngaphezu kwebhodi eprintiweyo kangangoko kunokwenzeka kwicala elithe nkqo.

(3) Ukubekwa kwezixhobo ezibuthathaka zobushushu

Isixhobo esinobushushu bobushushu kufuneka sibekwe kweyona ndawo isezantsi yobushushu. Ungaze uyibeke ngqo phezu kwesixhobo sokufudumeza.

(4) Ulungiselelo kunye nokuhamba komoya kwezixhobo

Akukho mfuneko zikhethekileyo. Ngokuqhelekileyo, ingaphakathi lesixhobo lisebenzisa i-convection yamahhala ukukhupha ukushisa, ngoko ke amacandelo kufuneka ahlelwe ngokuthe nkqo; ukuba ubushushu bunyanzeliswa ukuba buchithe, amacandelo anokulungiswa ngokuthe tye. Ukongezelela, ukwenzela ukuba kuphuculwe umphumo wokutshatyalaliswa kobushushu, amacandelo angenanto yakwenza nomgaqo wesiphaluka anokongezwa kwisikhokelo sokushisa ukushisa.