Aluminium Solar Inverter PCB Solutions for Power Systems

Selelekela

Li-inverters tsa letsatsi li sebetsa e le borokho ba bohlokoa lipakeng tsa li-photovoltaic arrays le li-grids tsa motlakase, tse fetolang motlakase o otlolohileng hore e be hona joale o ka sebelisoang. Phephetso ea mantlha e mabapi le ho laola matla a phahameng a matla tlas'a ts'ebetso e tsoelang pele, haholo-holo lits'ebetsong tse ka ntle moo mocheso o ka holimo ho 70 ° C.

PCB ea inverter ea letsatsi e tlameha ho sebetsana le meroalo e phahameng ea motlakase ka nako e le 'ngoe, ho qhala mocheso o mongata, le ho boloka botsitso ba motlakase ka lihora tse likete tsa ts'ebetso. PCB ea Aluminium e fana ka tsela e tšepahalang ea mocheso bakeng sa taolo ea matla le botsitso ba ts'ebetso, e sebetsana le mefokolo ea mantlha ea lisebelisoa tsa boto ea potoloho ea setso.

Ho utloisisa Boqapi ba Solar Inverter PCB

Likaroloana tsa Motheo le Mathata a Thermal

Li-inverter tsa letsatsi tsa sejoale-joale li kenyelletsa li-module tsa phetoho ea matla, lipotoloho tsa taolo, mekhahlelo ea mokhanni oa heke, le meaho e kopaneng ea taolo ea mocheso. PCB ea sethala sa matla e jara boikarabelo ba bohlokoa ka ho fetisisa, e tšehetsang litsela tsa motlakase o phahameng ha e ntse e nolofalletsa taolo e nepahetseng ea ho fetola ka li-IGBT kapa li-MOSFET tse sebetsang maqhubung a pakeng tsa 10 le 50 kHz.

Li-substrates tsa khale tsa FR4 li sokola lits'ebetsong tsena ka lebaka la ho se sebetse hantle ha mocheso oa 0.3 ho isa ho 0.4 W/m·K, e leng se etsang hore ho be le libaka tse chesang tse haufi le li-semiconductors tsa motlakase. Ho se lumellane ha coefficient ea ho atolosoa ha mocheso pakeng tsa litsela tsa koporo le FR4 laminate ho baka khatello ea kelello nakong ea libaesekele tse futhumetseng, e leng se lebisang ho mokhathala o kopanetsoeng oa solder le ho hlōleha pele ho nako.

Litlhoko tsa Matla a Matla

Meralo ea PCB ea solar inverter e hloka ho nahanoa ka hloko ka libaka tsa motlakase le tsa mocheso. Litsela tsa motlakase li tlameha ho tsamaisa maqhubu a fetang li-ampere tse 50 ha li ntse li boloka karohano ea motlakase lipakeng tsa lisebelisoa tsa DC tse nang le matla a phahameng a matla le liphetho tsa AC. Li-inverters tsa likhoele le li-inverters tse bohareng li fihlella matla a matla a atamelang ho 5 ho isa ho 10 watts ka lisenthimithara tse lisekoere, e leng se hlokang mahlale a tsoetseng pele a substrate ho feta liboto tse tloaelehileng tsa multilayer.

Hobaneng Aluminium PCB bakeng sa Likopo tsa Solar Inverter

Ts'ebetso e Phahameng ea Thermal

PCB ea aluminium bakeng sa lits'ebetso tsa inverter ea letsatsi e fetola ka botlalo matla a tsamaiso ea mocheso ka kaho ea eona ea motheo oa tšepe. Lera la motheo la aluminium, leo hangata le leng botenya ba limilimithara tse 1.0 ho isa ho tse 3.0, le fihlella ho tsamaisoa ha mocheso pakeng tsa 120 le 200 W/m·K—e leng ntlafatso ea makhetlo a 400 ho feta FR4 e tloaelehileng. Lera la ho thibela motlakase la dielectric le boloka karohano ea motlakase ha le ntse le lumella phallo e sebetsang ea mocheso ho otloloha holim'a boto.

Melemo ea mantlha ea mocheso e kenyelletsa:

• Ho ntša mocheso o potlakileng - Metal core e tsamaisa mocheso ka makhetlo a 400 ka potlako ho feta li-substrates tsa FR4.
• Kabo e tšoanang ea mocheso - E felisa libaka tse chesang hohle holim'a matla a aluminium PCB.
• Mocheso o fokotsehileng oa mateano - E boloka ts'ebetso ea semiconductor 20-30 ° C e pholile ho feta meralo e lekanang ea FR4.
• Bokhoni bo ntlafetseng ba libaesekele - E mamella lipotoloho tsa mocheso tse fetang 100,000+ ho liprothokholo tsa tlhahlobo tse potlakileng.

Ho tsitsa ha Mechini le ho Tšepahala

Aluminium e bonts'a coefficient ea katoloso ea mocheso e tsamaellanang haufi-ufi le koporo, e fokotsa khatello ea maikutlo libakeng tsa solder nakong ea ho palama baesekele lipakeng tsa -40°C le 125°C. Tšebelisano ena ea mocheso e eketsa haholo nako ea bophelo ba lisebelisoa tsa masimo moo mocheso oa letsatsi le letsatsi o bakang khatello e ipheta-phetang ho kopano ea PCB ea matla a phahameng a aluminium.

Karolo e thata ea aluminium e fana ka botsitso bo boholo ha e bapisoa le li-laminate tsa tlhaho, e boloka boemo bo nepahetseng ba likarolo le jiometri ea mohlala tlas'a mojaro oa mocheso. Ho tiea ha tikoloho ho khetholla liboto tsena haholoanyane, kaha aluminium ka tlhaho e hanela ho monngoa ha mongobo 'me e boloka thepa ea motlakase ho pholletsa le maemo a feteletseng a mongobo.

Litlhaloso tsa Moqapi bakeng sa Tsamaiso ea Matla Aluminium PCB

Dielectric Layer Engineering

Lera la ho thibela mocheso pakeng tsa potoloho ea koporo le motheo oa aluminium le hloka boenjiniere bo nepahetseng ho leka-lekanya ts'ebetso ea mocheso khahlanong le polokeho ea motlakase. Lisebelisoa tse tloaelehileng tsa dielectric li fihlella ho tsamaisoa ha mocheso pakeng tsa 1.0 le 1.5 W/m·K ka botenya ba li-micrometer tse 75 ho isa ho tse 150. PCB ea taolo ea mocheso bakeng sa lits'ebetso tsa inverter ea letsatsi e tlameha ho boloka motlakase oa ho senyeha ha dielectric o fetang 3000 VAC ho netefatsa ts'ebetso e sireletsehileng ka libese tsa DC tse nang le motlakase o phahameng.

Kalafo ea Koporo le Bokaholimo

Kaho e boima ea koporo e ba ea bohlokoa bakeng sa bokhoni ba hona joale ba ho tsamaisa lisebelisoa tsa motlakase oa letsatsi. Baqapi ba potoloho ka tloaelo ba bolela boima ba koporo ba 2 oz ho isa ho 4 oz, bo tsamaellanang le botenya bo felileng pakeng tsa 70 le 140 micrometer. Likarolo tsena tse kholo tsa koporo li amohela maqhubu a tsoelang pele a fetang li-ampere tse 40 ka millimeter ea bophara ba trace ha li ntse li fokotsa mocheso o thibelang ho futhumatsa.

Likhetho tsa ho qetela tsa sefahleho li netefatsa khokahano e tšepahalang:

• ENIG (Electroless Nickel Immersion Gold) - E fana ka sebaka se bataletseng bakeng sa likarolo tsa molumo o motle le lipotoloho tse ngata tsa phallo.
• OSP (Organic Solderability Preservative) - Tharollo e theko e boima bakeng sa lits'ebetso tsa kopano e le 'ngoe e nang le solderability e ntle haholo.
• Silivera ea ho qoelisoa - E leka-lekanya ts'ebetso le litšenyehelo bakeng sa tlhahiso e phahameng ea ts'epo ea motlakase ea letsatsi ea PCB.

Moqapi oa Sebopeho sa Thermal

Ho fetisa mocheso ka katleho ho hloka litsela tse tobileng tsa mocheso ho tloha ho likarolo tsa likarolo ho ea motheong oa aluminium. Melao ea moralo e tlameha ho fokotsa lisebelisoa tsa dielectric ka tlas'a mehato ea lisebelisoa tse matla haholo, ho sebelisoa li-vias tsa mocheso kapa li-bond tse tobileng tsa koporo-to-aluminium moo ho khonehang. Ho khethoa ha lesela la dielectric tlas'a likarolo tsa bohlokoa ho ka fokotsa khanyetso ea mocheso oa lehae ka liperesente tse 30 ho isa ho tse 50.

Litlhoko tsa ho itšehla thajana tsa Motlakase

Ts'ebetso ea motlakase o phahameng e hloka tlhokomelo e matla ho libaka tse hulang le tse khelohileng . Melaetsa ea motlakase e jereng 600 ho isa ho 1000 VDC e hloka sebaka se fokolang sa limilimithara tse 4 ho isa ho tse 6 ho tloha li-cores tsa aluminium tse fatše, e leng se ikarabellang bakeng sa tekanyo ea tšilafalo le lintlha tsa bophahamo ho latela maemo a IEC. Mekhoa ea liteko e netefatsa khanyetso ea karohano e fetang 100 megohms le botšepehi ba hipot ka makhetlo a mabeli a motlakase o sebetsang hammoho le 1000 volts.

Ho tšepahala ho Thermal ho Solar Inverter PCB Systems

Tšebetso ea Tšimo le Bophelo bo Bolelele

Kaho ea substrate ea aluminium e susumetsa ka ho toba nako e tloaelehileng pakeng tsa ho hloleha ha litsamaiso tsa inverter tse sebelisitsoeng. Ka ho boloka mocheso oa li-junction ka tlase ho meeli ea bohlokoa, liboto tsa tšepe-core li fokotsa sekhahla sa ho senyeha ha semiconductor le ho eketsa bophelo ba ts'ebetso. Botšepehi bona bo fetolela katleho e tsitsitseng ea inverter kaholimo ho 97% tlas'a ts'ebetso e tsoelang pele mochesong o potolohileng oa 70°C.

Lintlha tsa ts'ebetso ea ts'ebetso ea ts'ebetso ho tsoa lits'ebetsong tse lekantsoeng li tiisa melemo ena. Lipolasi tsa letsatsi tse sebetsang libakeng tsa lehoatata tse nang le mocheso oa motšehare o fetang 50 ° C li tlaleha ho senyeha ho fokolang ha katleho ha ho sebelisoa theknoloji ea PCB ea matla a phahameng a aluminium. Taolo e phahameng ea mocheso e thibela ho khutlisa ts'ebetso nakong ea lihora tse phahameng tsa tlhahiso, ho eketsa kotulo ea matla ha mahlaseli a letsatsi a fihla boholo ba letsatsi le letsatsi.

Teko le netefatso

Bokhoni ba ho palama libaesekele bo ntlafala haholo ka li-module tsa aluminium tse bonts'ang ts'ebetso e tsitsitseng ka tlhahlobo e atolositsoeng ea mocheso. Linako tsa tlhokomelo li atoloha ka mokhoa o nepahetseng, kaha likarolo tse hatelitsoeng ka mocheso li bonts'a litheko tse tlase tsa ho hloleha le ho fokotseha ho fokotsehileng ha nako e ntse e feta likopanong tsa PCB tsa tlhahiso ea solar inverter.

Mehlala ea Kopo le Mekhoa ea Indasteri

Maemo a Hona Joale a Tšebeliso

Baetsi ba li-inverter tsa letsatsi ba sebelisa theknoloji ea aluminium PCB ho pholletsa le mekhoa e mengata e mengata. Boto e kholo ea phetoho ea matla e boloka li-transistors, li-capacitor tsa libese, le li-inductors tsa filthara ka li-inverters tsa likhoele tse lekantsoeng ho tloha ho 3 ho isa ho 300 kilowatts. Mehato ea converter ea DC-DC bakeng sa ho lata lintlha tse ngata tsa matla le eona e rua molemo ho li-substrates tsa aluminium, haholo-holo lits'ebetsong tsa polokelo ea betri ea motlakase o phahameng.

Theknoloji e Tsoelang Pele

Mekhoa ea ntlafatso ea indasteri e bonts'a tsoelo-pele e tsoelang pele ea substrate:

• Mehaho ea Hybrid - Ho kopanya li-cores tsa aluminium le li-spreaders tsa mocheso oa koporo bakeng sa ts'ebetso ea mocheso ho feta 5 W/m·K.
• Dielectrics tse tsoetseng pele - Ho kenyelletsa boron nitride kapa aluminium oxide fillers ho fihlela 3.0 W/m·K kapa conductivity e phahameng.
• Moetso oa boiketsetso - Ho fokotsa litšenyehelo ka mekhoa e ntlafalitsoeng ha u ntse u boloka litekanyetso tsa boleng.
• Meetso e bobebe - Ho leka-lekanya ts'ebetso ea mocheso le ho fokotsa boima ba sistimi bakeng sa ho kenya marulelong.

Lintlafatso tsena li beha theknoloji ea mantlha ea tšepe e le tharollo e tloaelehileng bakeng sa lisebelisoa tsa motlakase tsa moloko o latelang lits'ebetsong tsa matla a ka nchafatsoang, ho netefatsa hore meralo ea PCB ea motlakase oa letsatsi e kopana le maemo a ntseng a eketseha a matla le litebello tse sebetsang hantle.

fihlela qeto e

Phetoho ea ho ea ho liboto tsa potoloho tse thehiloeng ho aluminium e emela tsoelo-pele ea mantlha moralong oa motlakase oa letsatsi, ho sebetsana le liphephetso tsa mocheso tse hlahang lits'ebetsong tsa matla a phahameng a photovoltaic. Kaho ea tšepe ea mantlha e fana ka conductivity ea mocheso, botsitso ba mochini, le matla a matla a hlokahalang bakeng sa ts'ebetso e tšepahalang ho pholletsa le maemo a thata a tikoloho. Ha lisebelisoa tsa motlakase tse nchafalitsoeng li ntse li hola lefatšeng ka bophara, lisebelisoa tsa elektroniki tse matla li ba bohlokoa le ho feta molemong oa botsitso ba grid le moruo oa sistimi ea eneji.

Highleap Electronics e fana ka ditharollo tse felletseng tsa aluminium PCB :

• Tšehetso ea boenjiniere ba tloaelo - Moralo o ntlafalitsoeng oa mocheso le motlakase bakeng sa meralo e ikhethileng ea inverter le litekanyetso tsa matla.
• Bokhoni bo tsoetseng pele ba tlhahiso - Tlhahiso ea tšepe ea mantlha ea PCB ho tloha ho prototype ka tlhahiso ea boleng bo holimo e nang le taolo e tiileng ea boleng.
• Tsebo ea lintho tse bonahalang - Khetho le netefatso ea litsamaiso tsa dielectric, boima ba koporo, le kalafo ea holim'a metsi bakeng sa ts'epo e kholo.
• Teko le netefatso - Tlhahlobo ea mocheso, ho palama baesekele, le mangolo a tikoloho ho fihlela maemo a indasteri.

Ikopanye le litsebi tsa rona tsa botekgeniki ho buisana ka litlhoko tsa PCB ea hau ea inverter ea letsatsi le ho hlahloba hore na theknoloji e tsoetseng pele ea substrate e ka ntlafatsa ts'ebetso ea sehlahisoa sa hau le ts'epo ea tšimo joang.