Khetha thepa ea ho qhala mocheso bakeng sa PCB ea 3-layer

Ho khetha lisebelisoa tse nepahetseng tsa ho laola mocheso le ho qhala mocheso bakeng sa li-PCB tse mekato e meraro ho bohlokoa ho fokotsa mocheso oa likarolo le ho netefatsa botsitso ba sistimi ka kakaretso. Ha theknoloji e ntse e tsoela pele, lisebelisoa tsa elektronike li fetoha tse nyenyane le tse matla haholoanyane, e leng se etsang hore ho be le mocheso o eketsehileng. Sena se hloka mekhoa e sebetsang ea tsamaiso ea mocheso ho thibela mocheso o feteletseng le ho hlōleha ha thepa e ka bang teng.Ka poso ena ea blog, re tla u tataisa mabapi le mokhoa oa ho khetha lisebelisoa tse nepahetseng bakeng sa taolo ea mocheso le ho qhala mocheso ho li-PCB tsa 3-layer.

1. Utloisisa bohlokoa ba tsamaiso ea mocheso

Tsamaiso ea mocheso e bohlokoa ho netefatsa ts'ebetso e tšepahalang ea lisebelisoa tsa elektroniki. Mocheso o feteletseng o ka lebisa ho fokotseng ts'ebetso, ho eketseha ha tšebeliso ea matla, le ho khutsufatsa bophelo ba tšebeletso. Pholiso e nepahetseng e bohlokoa bakeng sa ho boloka lithempereichara ka har'a meeli e sireletsehileng. Ho hlokomoloha tsamaiso ea mocheso ho ka lebisa khatellong ea mocheso, ho senyeha ha likaroloana tsa eona, kapa esita le ho hlōleha ho baka tlokotsi.

2. Lintlha tse ka Sehloohong bakeng sa Thermal Control Materials

Ha u khetha lisebelisoa tsa taolo ea mocheso bakeng sa li-PCB tse 3-layer, lintlha tse latelang li lokela ho nahanoa:

- Thermal conductivity:Bokhoni ba thepa ea ho tsamaisa mocheso ka katleho bo bohlokoa. Mocheso o phahameng oa mocheso o potlakela ho tlosa mocheso ho tloha likarolong ho ea ho tikoloho e potolohileng. Lisebelisoa tse kang koporo le aluminium li sebelisoa haholo ka lebaka la thepa ea tsona e babatsehang ea ho tsamaisa mocheso.

- Insulation ea motlakase:Kaha PCB ea 3-layer e na le likarolo tse ngata tse nang le likarolo tse sa tšoaneng tsa elektronike, ho bohlokoa ho khetha lisebelisoa tse fanang ka motlakase o sebetsang hantle. Sena se thibela li-circuits tse khutšoane le liphoso tse ling tsa motlakase tsamaisong. Lisebelisoa tsa tsamaiso ea mocheso tse nang le thepa e ntle ea ho sireletsa motlakase li khethoa, tse kang li-ceramics kapa metsoako ea silicon-based.

- Tšebelisano:Lisebelisoa tse khethiloeng li lokela ho lumellana le mokhoa oa tlhahiso o sebelisoang ho hlahisa li-PCB tsa 3-layer. Ba lokela ho ba a loketse bakeng sa lamination le ho ba le e ntle khomaretse le dikarolo tse ling tsa PCB.

3. Lisebelisoa tsa ho chesa mocheso bakeng sa PCB ea 3-layer

Ho ntlafatsa ts'ebetso ea mocheso oa PCB ea 3-layer, ho ka sebelisoa lisebelisoa le mahlale a fapaneng:

- Thermal Interface Materials (TIM):TIM e fokotsa khanyetso ea mocheso ka ho ntlafatsa phetisetso ea mocheso lipakeng tsa likarolo le licheso tsa mocheso. Lisebelisoa tsena li tlatsa likheo tsa moea tse nyenyane tse nyenyane pakeng tsa marulelo 'me li tla ka mefuta e sa tšoaneng, ho kenyelletsa le liphahlo tsa mocheso, li-gel, li-pastes le lisebelisoa tsa phetoho ea mohato. Khetho ea TIM e itšetlehile ka lintlha tse kang conductivity ea mocheso, ho lumellana le ho sebetsa hape.

- Radiator:Radiator e fana ka sebaka se seholo sa holim'a metsi ho senya mocheso. Hangata li entsoe ka aluminium kapa koporo 'me li khomaretsoe likarolong tse matla haholo li sebelisa sekhomaretsi sa mocheso kapa li-fasteners tsa mechine. Moralo le ho beoa ha mocheso oa mocheso li lokela ho ntlafatsoa ho netefatsa hore mocheso o fela o sebetsa.

- Sebopeho sa Boto ea Potoloho:Sebopeho se nepahetseng sa PCB se phetha karolo ea bohlokoa ho feliseng mocheso. Ho kopanya likarolo tsa matla a phahameng hammoho le ho netefatsa sebaka se lekaneng pakeng tsa tsona ho lumella moea o ntlafetseng le ho fokotsa mocheso oa mocheso. Ho beha likarolo tsa ho futhumatsa haufi le lera le ka ntle la PCB ho khothalletsa ho lahla mocheso o sebetsang hantle ka ho tsamaisana.

- Ka tsela:Vias e ka behoa ka mokhoa o hlophisitsoeng ho tsamaisa mocheso ho tloha likarolong tse ka hare tsa PCB ho ea ho likarolo tse ka ntle kapa ho teba ha mocheso. Litsela tsena li sebetsa e le litsela tsa mocheso 'me li ntlafatsa ho lahla mocheso. Maemo a nepahetseng le kabo ea vias ke ea bohlokoa bakeng sa taolo e nepahetseng ea mocheso.

4. Ntlafatsa botsitso ba sistimi ka taolo e sebetsang ea mocheso

Botsitso ba sistimi ea PCB ea 3-layer e ka ntlafatsoa haholo ka khetho e hlokolosi le ts'ebetsong ea lisebelisoa tse nepahetseng tsa taolo ea mocheso. Tlhokomelo e lekaneng ea mocheso e fokotsa kotsi ea ho chesa le ho tiisa nako e telele ea likarolo tsa elektronike, kahoo e eketsa botšepehi ba tsamaiso.

Ka kakaretso

Ho khetha tsamaiso e nepahetseng ea mocheso le lisebelisoa tsa ho qhala mocheso bakeng sa PCB ea 3-layer ke habohlokoa ho thibela ho chesa le ho netefatsa botsitso ba tsamaiso. Ho utloisisa bohlokoa ba tsamaiso ea mocheso, ho nahana ka lintlha tse kang conductivity ea mocheso le ho kenya motlakase, le ho sebelisa lisebelisoa tse kang TIM, lisinki tsa mocheso, moralo o ntlafalitsoeng oa boto, le li-vias tse behiloeng ka maqiti ke mehato ea bohlokoa ho finyella taolo e nepahetseng ea mocheso. Ka ho beha taolo ea mocheso pele, o ka sireletsa ts'ebetso le nako e telele ea lisebelisoa tsa hau tsa elektroniki.