Cov kev txiav txim siab hauv qab no feem ntau coj los rau hauv tus account thaum tsim cov khoom siv PCB.

1. Puas PCB pawg thawj coj saib zoo phim lub tshuab tag nrho?

2. Puas yog qhov sib nrug ntawm cov khoom tsim nyog? Puas muaj qib lossis qib kev tsis sib haum xeeb?

3. PCB puas yuav tsum tau ua? Puas yog txheej txheem txheej tseg? Puas yog qhov chaw tshwj tseg? Yuav ua li cas npaj qhov chaw tso?

4. Yuav ua li cas tso thiab cua sov lub zog hluav taws xob?

5. Nws puas yooj yim los hloov cov khoom uas yuav tsum tau hloov ntau zaus? Puas yog cov khoom siv kho tau yooj yim los kho?

6. Puas yog qhov kev ncua deb ntawm cov khoom siv cua sov thiab cov cua sov xav tau?

7. EMC kev ua tau zoo ntawm tag nrho pawg thawj coj saib yog li cas? Cov txheej txheem tuaj yeem txhim kho kev muaj peev xwm tiv thaiv kev cuam tshuam li cas?

Txog qhov teeb meem ntawm kev sib nrug nruab nrab ntawm cov khoom thiab cov khoom siv, raws li qhov xav tau nyob deb ntawm cov pob khoom sib txawv thiab cov yam ntxwv ntawm Altium Designer nws tus kheej, yog tias qhov kev txwv tau teeb tsa los ntawm cov cai, kev teeb tsa yog nyuab heev thiab nyuaj rau ua tiav. Ib txoj kab tau kos rau ntawm txheej txheej txheej txhawm rau qhia sab nrauv ntawm cov khoom, raws li tau qhia hauv daim duab 9-1, yog li thaum lwm qhov kev sib koom ua ke, qhov sib nrug kwv yees tau paub. Qhov no yog qhov ua tau zoo rau cov pib tshiab, tab sis kuj tseem pab kom cov neeg pib tsim cov txheej txheem PCB tsim tau zoo.

Kev txwv ntawm PCB txheej txheem txheej txheem

Daim duab 9-1 Cov neeg kho tshuab pabcuam cable

Raws li kev txiav txim siab saum toj no thiab kev tshuaj xyuas, cov txheej txheem txheej txheem txheej txheem PCB tuaj yeem raug cais raws li hauv qab no.

Lub hauv paus ntsiab lus txheej txheem

1. Raws li qhov xwm txheej ib txwm muaj, txhua lub Cheebtsam yuav tsum tau teeb tsa nyob rau tib lub PCB. Tsuas yog thaum cov khoom siv sab saum toj ntom heev, qee qhov khoom txwv qhov siab thiab tus nqi qis (xws li nti tsis kam, nti muaj peev xwm, nti IC, thiab lwm yam) tuaj yeem tso rau hauv qab txheej.

2. On the premise of ensuring the electrical performance, the components should be placed on the grid and arranged parallel or vertically to each other in order to be neat and beautiful. Raws li qhov xwm txheej ib txwm, cov khoom tsis raug tso cai sib tshooj, kev teeb tsa cov khoom siv yuav tsum ua kom nruj, cov khoom siv tawm thiab cov khoom tsim tawm kom deb li deb tau los ntawm ib leeg, tsis txhob tshwm sim.

3, tej zaum yuav muaj qhov hluav taws xob siab ntawm qee cov khoom lossis cov xov hlau, yuav tsum nce lawv qhov deb, thiaj li tsis ua rau muaj xwm txheej luv luv vim raug tso tawm, tawg, teeb tsa kom ntau li ntau tau los ua tib zoo saib xyuas qhov teeb tsa ntawm cov chaw no.

4. Cov khoom uas muaj hluav taws xob siab yuav tsum tau npaj kom deb li deb tau hauv cov chaw uas tsis yooj yim siv tau los ntawm txhais tes thaum lub sij hawm debug.

5, nyob ntawm ntug ntawm cov phaj phaj, yuav tsum sim ua ob lub phaj tuab los ntawm ntug phaj.

6, cov khoom yuav tsum tau muab faib sib npaug ntawm tag nrho pawg thawj coj, tsis yog thaj chaw no ntom, lwm thaj chaw xoob, txhim kho kev ntseeg tau ntawm cov khoom.

Ua raws li txheej txheem txheej txheem ntawm kev taw qhia teeb liab

1. Tom qab tso cov khoom ruaj khov, teeb tsa txoj haujlwm ntawm txhua qhov chaw ua haujlwm ib leeg raws ib qho raws li kev taw qhia ntawm lub teeb liab, nrog cov khoom siv tseem ceeb ntawm txhua qhov kev ua haujlwm hauv Circuit raws li qhov chaw nruab nrab thiab ua cov txheej txheem hauv ib puag ncig nws.

2. Cov txheej txheem ntawm cov khoom siv yuav tsum yooj yim rau cov teeb liab ntws, kom lub teeb liab khaws tib cov lus qhia kom deb li deb tau. Feem ntau, cov teeb liab tau teeb tsa los ntawm sab laug mus rau sab xis lossis los ntawm sab saum toj mus rau hauv qab, thiab cov khoom sib txuas ncaj qha mus rau cov tswv yim thiab cov khoom tso tawm yuav tsum tau muab tso ze rau cov tswv yim thiab cov khoom txuas lossis txuas.

Tiv thaiv kev cuam tshuam hluav taws xob

Kev txwv ntawm PCB txheej txheem txheej txheem

Daim duab 9-2 Kev teeb tsa ntawm tus inductor nrog tus inductor perpendicular rau 90 degrees

(1) Rau cov khoom siv hluav taws xob muaj zog hluav taws xob teb thiab cov khoom siv nrog lub siab rhiab heev rau hluav taws xob nqus hluav taws xob, qhov nrug nruab nrab ntawm lawv yuav tsum tau nce ntxiv, lossis daim npog tiv thaiv yuav tsum raug txiav txim rau kev tiv thaiv.

(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. Daim duab 9-2 qhia txog kev teeb tsa inductors 90 ° perpendicular rau tus inductor.

(4) Tiv thaiv qhov cuam tshuam los yog cuam tshuam tau yooj yim, cov ntaub thaiv npog yuav tsum tau ua kom zoo. Daim duab 9-3 qhia txog kev npaj phiaj xwm tiv thaiv.

Kev tiv thaiv kev cuam tshuam thermal

(1) Cov cua sov tsim cov ntsiab lus yuav tsum tau muab tso rau hauv ib txoj haujlwm uas pab kom sov tawm. Yog tias tsim nyog, lub tshuab hluav taws xob cais lossis lub kiv cua me tuaj yeem teeb tsa kom txo qhov kub thiab txo qhov cuam tshuam ntawm cov khoom nyob sib ze, raws li qhia hauv daim duab 9-4.

(2) Qee lub zog sib xyaw ua ke, cov hlab hluav taws xob siab, cov neeg tawm tsam, thiab lwm yam, yuav tsum tau teeb tsa hauv qhov chaw uas cov cua sov tso tawm tau yooj yim, thiab sib cais los ntawm lwm qhov los ntawm qee qhov deb.

Kev txwv ntawm PCB txheej txheem txheej txheem

Daim duab 9-3 Npaj phiaj xwm tiv thaiv

Kev txwv ntawm PCB txheej txheem txheej txheem

Daim duab 9-4 Kev tshav kub kub rau qhov teeb tsa

(3) Cov cua kub rhiab rhiab yuav tsum nyob ze rau qhov ntsuas thiab nyob deb ntawm thaj chaw kub, yog li tsis txhob cuam tshuam los ntawm lwm cov cua sov sib npaug sib npaug thiab ua rau ua haujlwm tsis raug.

(4) Thaum cov khoom raug muab tso rau ob sab, cov cua sov feem ntau tsis muab tso rau hauv qab txheej.

Lub hauv paus ntsiab lus ntawm kev teeb tsa kho kom haum

Cov txheej txheem ntawm cov khoom siv kho tau xws li potentiometers, cov peev txheej sib txawv, hloov kho qhov inductance coils thiab micro-keyboards yuav tsum xav txog cov txheej txheem tsim nyog ntawm tag nrho lub tshuab: yog tias lub tshuab raug kho sab nraud, nws txoj haujlwm yuav tsum raug yoog raws txoj haujlwm ntawm kev hloov kho pob qhov rooj chassis vaj huam sib luag; Thaum hloov kho lub tshuab, nws yuav tsum muab tso rau ntawm PCB qhov nws yooj yim los kho.