Chikonzero chakananga chekukwira kwekushisa kwePCB imhaka yekuvapo kwemagetsi emagetsi ekudziya, zvigadzirwa zvemagetsi zvine madhigirii akasiyana ekubvisa simba, uye kupisa kwakanyanya kunosiyana nekuparara kwemagetsi.

2 zviitiko zvekukwira kwekushisa muPCB:

(1) kukwira kwekushisa kwenzvimbo kana kukwira kwenzvimbo hombe;

(2) kukwira kwekushisa kwenguva pfupi kana kwenguva refu.

Mukuongorora kwePCB yekupisa simba, zvinotevera zvinhu zvinowanzoongororwa:

1. Kushandiswa kwemagetsi emagetsi

(1) ongorora mashandisirwo emagetsi pachikamu chimwe chete;

(2) ongorora kugoverwa kwemagetsi paPCB.

2. Chimiro chePCB

(1) ukuru hwePCB;

(2) zvinhu zvacho.

3. Kuiswa kwePCB

(1) nzira yekuisa (yakadai sekuisa yakatwasuka uye yakachinjika kuisirwa);

(2) chisimbiso mamiriro uye chinhambwe kubva paimba.

4. Thermal mwaranzi

(1) radiation coefficient yePCB pamusoro;

(2) musiyano wetembiricha pakati pePCB nenzvimbo iri padyo uye tembiricha yavo yakakwana;

5. Kuitisa kupisa

(1) kuisa radiator;

(2) kuitisa mamwe magadzirirwo ekuisa.

6. Thermal convection

(1) kutenderera kwechisikigo;

(2) kumanikidzwa kutonhora convection.

PCB kuongororwa kwezvinhu zviri pamusoro inzira inoshanda yekugadzirisa kukwira kwekushisa kwePCB, kazhinji muchigadzirwa nehurongwa zvinhu izvi zvine hukama uye zvinoenderana, zvinhu zvakawanda zvinofanirwa kuongororwa zvinoenderana nemamiriro chaiwo, chete kune chaiyo chaiyo mamiriro anogona kuve akawanda. yakanyatsoverengerwa kana inofungidzirwa tembiricha kukwira uye simba paramita.