Rigid-Flex PCB bakeng sa Drone: Ho ntlafatsa Compact UAV Electronics

Selelekela

Ha di-drone di ntse di fokola mme di le matla le ho feta, baenjiniere ba tobana le kgatello e ntseng e eketseha ya ho fokotsa sebaka ha ba ntse ba boloka botsitso ba motlakase. Di-PCB tse thata tse feto-fetohang bakeng sa di-drone di kopanya dipotoloho tse tenyetsehang le dikarolo tse thata ho nolofalletsa dikgokelo tse nyane bakeng sa balaodi ba difofane, di-module tsa khamera le diyuniti tsa motlakase. Kaho ena e kopaneng e tlosa dihokelo tse kgolo le di-harnesses tsa thapo tse eketsang boima le ho hlahisa dintlha tse ka bang teng tsa ho hloleha. Dipotoloho tse tenyetsehang tsa UAV di mena ka ho hlaka ka hara dibaka tse kwalletsweng, di tshehetsa kopanyo ya bongata bo boholo e hlokahalang bakeng sa ditsamaiso tsa sejwalejwale tsa di-drone.

Hobaneng ha Drones e Hloka Li-PCB tse Rigid-Flex

Sistimi ea li-drone tsa komporo e hloka tharollo ea potoloho eo liboto tse tloaelehileng tse thata li ke keng tsa fana ka tsona. Balaoli ba lifofane, li-ESC, lik'hamera le li-sensor li tlameha ho hokahana ka har'a limilimithara tsa sebaka se fumanehang, moo likopano tsa setso tsa cable li jang molumo o feteletseng le ho eketsa boima bo sa hlokahaleng. Theknoloji ea Rigid-flex PCB e fokotsa lintlha tsa khokahanyo ka ho kopanya lipotoloho tse tenyetsehang ka kotloloho ho sebopeho sa boto.

Melemo ea PCB e thata-flex bakeng sa lits'ebetso tsa drone e kenyelletsa:

• Ho fokotsa boima ba 'mele - Ho tlosa likhokahano le likhoele ho fokotsa boima ba sistimi ka 20-40% ha ho bapisoa le likopano tse lekanang tsa boto tse nang le likhoele tsa terata.
• Khanyetso ea khatello - Likarolo tse feto-fetohang tsa potoloho li monya khatello ea maikutlo e neng e ka robeha manonyeletso a solder holim'a likhokahano tsa cable, ho ntlafatsa ts'epahalo tlas'a ho sisinyeha ho sa feleng ha enjene.
• Botšepehi ba pontšo - Bolelele bo khutsufalitsoeng le tšitiso ea motlakase ho tsoa tseleng e kopaneng e ntlafatsa puisano lipakeng tsa likarolo tsa taolo ea sefofane.
• Ntlafatso ea sebaka - Ho mena ka mahlakore a mararo ho nolofalletsa meralo ea meralo ea compact drone e sa khoneheng ka liboto tse thata feela.

Moralo oa Sebopeho sa Li-PCB tse Rigid-Flex ho li-UAV

Tlhophiso ea Lera

Mehaho e tloaelehileng ea PCB ea UAV e sebelisa likarolo tse thata tsa 4-layer bakeng sa ho kenya likarolo tse kopantsoeng le libaka tse 2-layer flex bakeng sa ho hokahanya. Libaka tse thata li fana ka li-platform tse tsitsitseng bakeng sa li-processor, li-connectors, le likarolo tsa matla tse hlokang tšehetso e sireletsehileng ea mochine. Likarolo tse feto-fetohang li tsamaea lipakeng tsa li-module tse sebelisang li-substrates tsa filimi tsa polyimide tse kobehang khafetsa ntle le mokhathala oa conductor.

Beng Radius le Mechanical Tšepahala

Likarolo tse feto-fetohang tsa UAV tsa potoloho li hloka lipalo tse fokolang tsa radius ho thibela ho phatloha ha conductor nakong ea kopano le ts'ebetso. Libaka tse feto-fetohang tse matla tse mamellang motsamao o sa khaotseng li hloka radii bonyane makhetlo a 10 ho feta botenya ba thepa, ha mekoloko e sa fetoheng e entsoeng nakong ea ho kenya e ka sebelisa likhakanyo tsa makhetlo a 6-8. Ho beoa ha Stiffener nakong ea ho kobeha ho thibela khatello ea maikutlo e potlakisang ho hloleha.

Khetho ea Lihlahisoa

Polyimide flex board e fana ka botsitso ba mocheso le thepa ea mochini e hlokahalang bakeng sa lisebelisoa tsa elektroniki tsa UAV. FR-4 e tloaelehileng e na le likarolo tse thata moo botsitso ba boholo le ho qhalana ha mocheso li leng bohlokoa haholo. Mehaho e se nang likhomaretsi e felisa botenya ba bond le ho ntlafatsa ho tenyetseha libakeng tse kobehang. Tšebelisano ea lintho tse bonahalang pakeng tsa li-stackups tse thata le tse feto-fetohang li thibela delamination nakong ea libaesekele tse futhumetseng ho tloha -40 ° C ho ea ho 85 ° C e tloaelehileng ts'ebetsong ea ka ntle ea drone.

Lisebelisoa tsa bohlokoa ho Compact Drone Systems

Kopanyo ea Taolo ea Sefofane

Meralo ea PCB ea molaoli oa sefofane e thata-thata e kopanya liboto tsa processor le li-sensor interfaces ka li-connector tse tenyetsehang. Li-module tsa IMU, GPS le barometer li hokahana ka mehatla e tenyetsehang e fetang libakeng tsa ho kenya foreimi ea moea ntle le li-connectors. Kopanyo ena e fokotsa nako ea kopano 'me e felisa liphoso tsa' mapa oa terata nakong ea tlhahiso.

Khokahano ea Mojule oa Khamera

Sistimi ea Gimbal e hloka likhokahano tse feto-fetohang tse mamellang ho potoloha ho sa khaotseng ha li ntse li boloka botšepehi ba matšoao bakeng sa phetiso ea video. Mehaho e thata-thata e beha sehokelo sa kh'amera likarolong tse thata ha libaka tse tenyetsehang li latela motsamao oa gimbal ka ho sisinyeha ka botlalo. Mokhoa ona o felisa mathata a ho khathala ha terata a atileng ts'ebetsong ea likhoele tsa ribone, ho lelefatsa bophelo ba ts'ebeletso ho feta lipotoloho tse 100,000 tsa motsamao.

Kabo ea Battery le Matla

Liboto tsa kabo ea matla li rua molemo ho PCB e thata-flex bakeng sa litsamaiso tsa matla a drone ka ho kopanya likarolo tse thata tsa morao-rao bakeng sa likhokahano tsa betri le makala a tenyetsehang a tsamaisang li-ESC ka bomong. Likarolo tse thata li fana ka boima ba mocheso bakeng sa mesaletsa e sebetsang hona joale le libaka tse hokahaneng bakeng sa likhokahanyo tsa motlakase. Likarolo tse feto-fetohang li fokotsa khatello ea mochine ho manonyeletso a solder ho tloha ho thothomela.

Gimbal Control Integration

Likarolo tsa taolo ea Gimbal li hloka matšoao a nepahetseng a koloi a fanoang ka likhokahano tse feto-fetohang. Kopano ea UAV PCB e sebelisang mahlale a rigid-flex e boloka tšitiso e laoloang ka libaka tse kobehileng, e boloka boleng ba lets'oao bakeng sa phallo ea enjene ea brushless. Ho lumellana le mechine ea likarolo tse feto-fetohang ho thibela maikutlo a vibrate ho tloha motsamaong oa gimbal o amang ho phahama ha molaoli oa sefofane.

Mehopolo ea Moralo le Tlhahiso bakeng sa Rigid-Flex PCB

Ntlafatso ea Stack-up

Moralo oa PCB o tiileng o feto-fetohang o hloka ho rala ka hloko liphetoho tsa lera lipakeng tsa libaka tse thata le tse tenyetsehang. Khetho ea boima ba koporo e leka-lekanya litlhoko tsa ho tenyetseha khahlanong le bokhoni ba ho jara motlakase, hangata ho sebelisoa koporo ea 0.5 oz libakeng tse feto-fetohang tse feto-fetohang le 1-2 oz likarolong tse thata. Ho beoa ka tsela ho qoba libaka tse tenyetsehang moo khatello ea libarele e bakang ho petsoha, ho e-na le hoo ho tsepamisa likhokahano ka har'a libaka tse thata.

Impedance e Laolang Libakeng tse Bending

Matšoao a lebelo le phahameng a tšela likarolo tsa UAV tse feto-fetohang a hloka taolo ea impedance ka liphetoho tsa radius ea bend. Lipalo tsa bophara ba trace le sebaka li tlameha ho ikarabella bakeng sa phapang ea botenya ba dielectric joalo ka ha polyimide e hatella nakong ea ho kobeha. Litsela tse fapaneng tse fapaneng li boloka khokahano e tiileng nakong ea liphetoho ho boloka botsitso ba matšoao bakeng sa USB, li-interface tsa khamera tsa MIPI, le likhokahano tsa sensor ea SPI.

Ka Tlhahlobo ea Tšireletso le ho Tšepahala

Litlhoko tsa tlhahiso bakeng sa UAV flexible PCB li kenyelletsa:

• Tšireletso e koahelang - E sireletsa mesaletsa ea koporo libakeng tse feto-fetohang ha mask a tenyetsehang a solder a fana ka khanyetso ea abrasion libakeng tse nang le khatello e tlase.
• Ka ho matlafatsa - Teardrop pad geometry meeling e thata-flex e tsamaisa khatello ea kelello le ho thibela karohano ea mehele ea selemo.
• IPC-6013 ho latela melao - Litlhaloso tsa Sehlopha sa 3 li netefatsa hore lits'ebetso tsa tlhahiso li fihlella litekanyetso tsa ts'epahalo ea sefofane.
• Teko ea potoloho ea Flex - Netefatso e kenyelletsa lipotoloho tse 100,000+ le qualification ea mocheso oa mocheso ho tloha ho -55°C ho isa ho 125°C.

Melemo le Khoebo-offs ea Rigid-Flex PCB bakeng sa Drone Systems

Melemo ea Ts'ebetso

Melemo ea PCB ea drone e bobebe ea kaho e tiileng e ntlafatsa ts'ebetso ea sefofane ka ho fokotsa boima ba sistimi. Ho tlosa lihokelo ho tlosa ligrama tse 15-30 ho li-drone tse tloaelehileng tsa bareki, ho eketsa nako ea ho fofa ka metsotso e 2-3. Meralo ea PCB e tiileng e tsitsitseng e bolokang sebaka e nolofalletsa liforeimi tse nyane tsa moea kapa matla a eketsehileng a betri ka har'a lienfelopo tse seng li ntse li le teng.

Mehopolo ea Moralo le Litšenyehelo

Ho rarahana ha tlhahiso ho eketsa litšenyehelo tsa 40-60% ho feta likopano tsa boto tse thata tse nang le likhoele tsa likhoele. Liphetoho tsa moralo li hloka lisebelisoa tse khethehileng le linako tse telele tsa ho etella pele ha li bapisoa le mekhoa e tloaelehileng ea PCB. Lihlopha tsa boenjiniere li tlameha ho hokahanya litlhoko tsa moralo oa mochini le oa motlakase ka nako e le 'ngoe, li batla tšebelisano-'moho e fapaneng pele ho nts'etsopele.

fihlela qeto e

Theknoloji ea Rigid-flex PCB e sebetsana le liphephetso tsa mantlha tsa lisebelisoa tsa elektroniki tsa compact drone ka lipotoloho tse feto-fetohang tse kopaneng, ho felisoa ha sehokelo, le kaho e hananang le vibrate. Bokhoni ba ho tsamaisa li-dimensional tse tharo bo thusa meralo ea sistimi e ntlafatsang molumo le boima ba 'mele ha e ntse e boloka botsitso ba matšoao tlas'a maemo a thata a sefofane. Ho rarahana ha moralo le litšenyehelo tsa tlhahiso li emela lintlha tse kholo, leha ho le joalo ntlafatso ea ts'ebetso e lokafatsa ho amoheloa ha mananeo a tlhahiso moo tšebeliso ea sebaka le ts'epahalo e laolang katleho ea sistimi.