Ukucatshangelwa okulandelayo kuvame ukucatshangelwa lapho kuklanywa izingxenye ze-PCB.

1. Ingabe PCB ibhodi umumo ufanise wonke umshini?

2. Ngabe isikhala phakathi kwezakhi sinengqondo? Ingabe kukhona izinga noma izinga lengxabano?

3. Ngabe i-PCB idinga ukwakhiwa? Ingabe umkhawulo wenqubo ubekiwe? Ngabe izimbobo ezihlanganayo zigciniwe? Uhlela kanjani izimbobo zokubeka?

4. Uyibeka kanjani futhi uyishise imodyuli yamandla?

5. Ingabe kulula ukufaka esikhundleni sezinto ezidinga ukushintshwa njalo? Ingabe izinto eziguquguqukayo kulula ukuzilungisa?

6. Ingabe kubhekwa ibanga phakathi kwento eshisayo nento yokufudumeza?

7. Kunjani ukusebenza kwe-EMC kwebhodi lonke? Ukuhlelwa kungalithuthukisa kanjani ngempumelelo ikhono lokulwa nokuphazamiseka?

Ngenkinga yokuhlukanisa phakathi kwezinto nezinto, ngokuya ngezidingo zebanga lamaphakeji ahlukile nezimpawu ze-Altium Designer uqobo, uma umkhawulo usethwe yimithetho, ukulungiselelwa kuyinkimbinkimbi kakhulu futhi kunzima ukukufeza. Umugqa udwetshwa kusendlalelo lokukhombisa ukukhombisa ubukhulu bangaphandle bezinto, njengoba kukhonjisiwe kuMdwebo 9-1, ukuze kuthi lapho ezinye izinto zisondela, isikhala esilinganisiwe saziwe. Lokhu kusebenza kakhulu kwabaqalayo, kepha futhi kunika amandla abaqalayo ukuthuthukisa imikhuba emihle yokwakhiwa kwe-PCB.

Izithiyo ekwakhiweni kwengxenye ye-PCB

Umdwebo 9-1 Ikhebula elisizayo lomshini

Ngokusekelwe kokucatshangelwa okungenhla nokuhlaziywa, izimiso ezijwayelekile zokuhlelwa kwe-PCB zingahlelwa ngokulandelayo.

Isimiso sokuhlelwa kwezinto

1. Ngaphansi kwezimo ezijwayelekile, zonke izingxenye kufanele zihlelwe endaweni efanayo ye-PCB. Kuphela lapho ingxenye ephezulu iminyene kakhulu, ezinye izinto ezinokuphakama okulinganiselwe nenani eliphansi le-calorific (njengokumelana ne-chip, i-chip capacitance, i-chip IC, njll.) Zingabekwa kusendlalelo esingezansi.

2. Ngesisekelo sokuqinisekisa ukusebenza kukagesi, izingxenye kufanele zibekwe kugridi futhi zihlelwe ngokufana noma ngokuqonde ngqo komunye nomunye ukuze kucoceke futhi kube kuhle. Ngaphansi kwezimo ezijwayelekile, izingxenye azivunyelwe ukweqana, ukuhlelwa kwezinto kufanele kube okuhlanganisiwe, izinto zokufaka nezinto zokukhipha ngangokunokwenzeka ngaphandle komunye nomunye, akuveli i-crossover.

3, kungahle kube namandla aphezulu phakathi kwezinye izinto noma izintambo, kufanele akhuphule ibanga lawo, ukuze angabangeli ngengozi isekhethi emfushane ngenxa yokukhipha, ukuwohloka, ukuhlelwa ngangokunokwenzeka ukunaka ukuhlelwa kwalezi ndawo zesiginali.

4. Izinto ezinamandla amakhulu kufanele zihlelwe ngangokunokwenzeka ezindaweni ezingafinyeleleki kalula ngesandla ngesikhathi sokulungisa iphutha.

5, etholakala emaphethelweni wezingxenye zepuleti, kufanele izame ukwenza ukujiya kwamapuleti amabili kusuka emaphethelweni epuleti.

6, izingxenye kufanele zisatshalaliswe ngokulinganayo ebhodini lonke, hhayi le ndawo iminyene, enye indawo evulekile, ithuthukise ukuthembeka komkhiqizo.

Landela isimiso sokuhlelwa kokuqondiswa kwesiginali

1. Ngemuva kokubeka izinto ezihleliwe, hlela ukuma kweyunithi ngayinye yesekethe esebenzayo ngokuya ngokuya kwesiginali, nengxenye eyinhloko yesekethe ngayinye esebenzayo njengesikhungo bese wenza ukwakheka kwendawo okuzungezile.

2. Ukuhlelwa kwezinto kufanele kube lula ukugeleza kwesiginali, ukuze isignali igcine indlela efanayo ngangokunokwenzeka. Ezimweni eziningi, ukugeleza kwesiginali kuhlelwa kusuka kwesobunxele kuye kwesokudla noma kusuka phezulu kuye phansi, futhi izingxenye ezixhunywe ngqo kumatheminali wokufaka nawokukhipha kufanele zibekwe eduze kwezixhumi zokufaka nezokukhipha noma izixhumi.

Ukuvimbela ukuphazanyiswa kwamandla kagesi

Izithiyo ekwakhiweni kwengxenye ye-PCB

Umdwebo 9-2 Ukuhlelwa kwe-inductor ne-inductor kubheke ngaku-90 degrees

(1) Ezingxenyeni ezinemikhakha enamandla kagesi enemisebe enamandla kanye nezinto ezinokuzwela okuphezulu ekufakweni kwamandla kagesi, ibanga phakathi kwazo kufanele lenyuswe, noma ikhava yokuvikela kufanele ibhekwe njengokuvikela.

(2) Try to avoid high and low voltage components mixed with each other and strong and weak signal components interlaced together.

(3) for components that will produce magnetic fields, such as transformers, loudspeakers, inductors, etc., attention should be paid to reducing the cutting of magnetic lines on printed wires when layout, and the magnetic field direction of adjacent components should be perpendicular to each other to reduce the coupling between each other. Umdwebo 9-2 ukhombisa ukuhlelwa kwama-inductors 90 ° ngokuya kwe-inductor.

(4) Imithombo yokuphazamisa evikelayo noma amamojula aphazanyiswa kalula, ikhava yokuvikela kufanele ibekeke kahle. Umdwebo 9-3 ukhombisa ukuhlelwa kwekhava lokuvikela.

Ukucindezelwa kokuphazamiseka okushisayo

(1) Izinto ezikhiqiza ukushisa kufanele zibekwe endaweni evumelana nokushiswa kokushisa. Uma kunesidingo, kungasethwa irediyetha ehlukile noma ifeni elincane ukwehlisa izinga lokushisa nokunciphisa umthelela kuzinto ezingomakhelwane, njengoba kukhonjisiwe kuMdwebo 9-4.

(2) Amanye amabhulokhi ahlanganiswe ngamandla amakhulu, amashubhu anamandla amakhulu, ama-resistors, njll., Kufanele ahlelwe ezindaweni lapho ukushabalalisa ukushisa kulula khona, futhi ahlukaniswe nezinye izinto ngebanga elithile.

Izithiyo ekwakhiweni kwengxenye ye-PCB

Umdwebo 9-3 Uhlela ikhava yokuvikela

Izithiyo ekwakhiweni kwengxenye ye-PCB

Umdwebo 9-4 Ukushabalalisa ukushisa kwesakhiwo

(3) Isici esibucayi esishisayo kufanele sisondele entweni elinganisiwe futhi sisuke endaweni enezinga lokushisa eliphakeme, ukuze singathinteki ngamanye amandla alinganayo okushisa futhi sidale ukungasebenzi kahle.

(4) Lapho i-elementi ibekwa ezinhlangothini zombili, into efudumezayo ngokuvamile ayibekwa kusendlalelo esingezansi.

Isimiso sokuhlelwa kwezinto eziguqukayo

Ukuhlelwa kwezinto eziguquguqukayo njengama-potentiometer, ama-capacitors aguqukayo, amakhoyili we-inductance aguquguqukayo kanye nama-micro-switch kufanele acabangele izidingo zokwakhiwa kwawo wonke umshini: uma umshini ulungiswa ngaphandle, isikhundla sawo kufanele sivumelane nesimo seqhwa lokulungisa Iphaneli ye-chassis; Uma kwenzeka ukulungiswa komshini, kufanele kubekwe ku-PCB lapho kulula ukuyilungisa khona.