Kana zvasvika kune PCB dhizaini, iyo kukamurwa kwakagadzirwa neazvino kugona kwePBB wiring kwakakosha.

Iko kugona kwazvino kweiyo wiring paPCB kunoonekwa nemipimo yakadai sehupamhi hwetambo, ukobvu hwetambo, kukwirisa kwekushisa kunodiwa, kunyangwe iyo wiring iri yemukati kana yekunze, uye kana yakafukidzwa nekubuda kwemvura.

Muchikamu chino, tichakurukura zvinotevera:

mumwe Chii chinonzi pcb mutsetse upamhi?

Pcb wiring kana conductor yemhangura paPCB, inogona kuitisa chiratidzo pane iyo pcb pamusoro. The etching leaves a narrow section of copper foil, and the current flowing through the copper wire generates a lot of heat. Yakarongedzwa zvakaringana pcb wiring upamhi uye ukobvu zvinobatsira kudzikisira kupisa kuvaka-kumusoro pabhodhi. Iyo yakafara hupamhi hwemutsara, iyo yakadzika kuramba kurwisa kwazvino, uye kushoma kupisa kuwanda. Pcb wiring upamhi ndiyo yakatetepa dhayamita uye ukobvu ndiyo yakatwasuka divi.

Pcb dhizaini inogara ichitanga neiyo default line upamhi. However, this default line width is not always appropriate for the desired PCB. Izvi zvinodaro nekuti iwe unofanirwa kufunga nezve zvazvino kutakura huwandu hweiyo wiring kuti uone iyo wiring upamhi.

Paunenge uchisarudza iyo chaiyo dhayamita upamhi, funga akati wandei zvinhu:

1. Ukobvu hwemhangura – Ukobvu hwemhangura ndiyo chaiyo ukobvu hwetambo paPCB. Iyo yakasarudzika mhangura ukobvu hweiyo yepamusoro-yezvino PCBS ndeye 1 ounce (35 micron) kusvika 2 ounce (70 micron).

2. Chikamu chepakati chemakondakita – Kuti uve nesimba rakakwira rePBB, zvinofanirwa kuve nenzvimbo yakakura yemuchinjikwa, inoenderana nehupamhi hwemufambisi.

3. Nzvimbo yekutsvaga – pasi kana kumusoro kana mukati mechikamu.

piri Nzira yekugadzira yakakwira yazvino pcb?

Digital circuits, RF circuits and power circuits mainly process or transmit low power signals. The copper in these circuits weighs 1-2Oz and carries a current of 1A or 2A. Mune kumwe kunyorera, kwakadai sekudzivirira mota, pari zvino inosvika 50A inodiwa, izvo zvinoda mhangura yakawanda paPCB uye yakawedzera waya upamhi.

Iyo dhizaini nzira yekukwirira kwazvino zvinodiwa ndeyekuwedzera mhangura wiring uye nekuwedzera iwo hukobvu hwewiring kune 2OZ. Izvi zvinowedzera nzvimbo pabhodhi kana kuwedzera huwandu hwematanho paPCB.

3. Yakakwira yazvino pcb yekumisikidza maitiro:

Reduce the length of high-current cabling

Warefu waya ine yakakwira kuramba uye inotakura yakakwira yazvino, zvichikonzera kwakakwira magetsi kurasikirwa. Nekuti kurasikirwa kwesimba kunogadzira kupisa, redunhu bhodhi hupenyu hunopfupiswa.

Verenga upamhi hwewiring kana tembiricha yakakodzera ichisimuka uye kudonha kunoitwa

The line width is a function of variables such as resistance and the current flowing through it and the allowable temperature. Kazhinji, kuwedzera kwekushisa kwe10 ℃ kunotenderwa patembiricha iri pamusoro pe25 ℃. If the material and design of the plate allow, even a temperature rise of 20°C can be allowed.

Sarudza zvinhu zvinonzwisisika kubva munzvimbo dzakanyanya kupisa

Zvimwe zvemagetsi zvigadzirwa, senge voltage mareferenzi, anoneti-kune-edhijitari anoshandura uye anoshanda maampifita, anonzwisisa kune tembiricha shanduko. Kana izvi zvikamu zvadziya, chiratidzo chavo chinochinja.

Mahwendefa epamusoro ano anozivikanwa kuti anogadzira kupisa, saka izvo zvinoda kuchengetedzwa kure kure nenzvimbo dzinodziya kwazvo. Iwe unogona kuita izvi nekuita maburi mubhodhi uye nekupa kupisa kupisa.

Bvisa solder resistance layer

Kuti uwedzere iyezvino kuyerera kugona kweiyo waya, iyo solder barrier layer inogona kubviswa uye mhangura iri pasi yakafumurwa. Yakawedzera solder inogona kubva yawedzerwa kune iyo waya, iyo inowedzera kukora kwetambo uye kudzikisa kukosha kwekudzivirira. This will allow more current to flow through the wire without increasing the wire width or adding additional copper thickness.

Iyo yemukati rukoko inoshandiswa kune yakakwira-yazvino wiring

Kana iro rekunze reiyo pcb isina nzvimbo yakaringana yewakakora wiring, wiring inogona kuzadzwa mune yepakati rukoko rwePCB. Tevere, iwe unogona kushandisa kuburikidza-gomba kubatanidza kune yekunze yepamusoro-ikozvino chishandiso.

Wedzera zvidimbu zvemhangura zvepamusoro zvazvino

Kune mota dzemagetsi uye epamusoro-magetsi inverters ane zvazvino anodarika 100A, mhangura wiring inogona kunge isiri iyo nzira yakanakisa yekuendesa simba nezviratidzo. Mune ino kesi, iwe unogona kushandisa emhangura mabara ayo anogona kutengeswa kune iyo PCB pad. The copper bar is much thicker than the wire and can carry large currents as required without any heating problems.

Shandisa kuburikidza-gomba sutures kutakura akawanda mawaya pamusoro akawanda akaturikidzana epamusoro yazvino

Kana kabheji isingakwanise kutakura iyo yaunoda ikozvino mune imwechete dura, cabling inogona kuendeswa pamusoro pezvikamu zvakawanda uye kurapwa nekumonera matanda pamwe chete. Muchiitiko chekukora kwakafanana kwematanho maviri, izvi zvinowedzera ikozvino-kutakura kugona.

kugumisa

Pane zvinhu zvakawanda zvakaomarara mukumisikidza wiring zvazvino nzvimbo. Nekudaro, vePCBB vagadziri vanogona kuvimba nekuvimbika kwetambo ukobvu macalculator kubatsira kugadzira mapuranga avo zvakanaka. Paunenge uchigadzira yakavimbika uye yakakwira-kuita PCB, iyo chaiyo yekumisikidzwa kwetambo upamhi uye yazvino-inotakura kugona inogona kuenda kure nzira.