PCB dhizaini dhizaini hachisi chinhu chekupokana, ine mimwe mitemo inoda kuteverwa nemunhu wese.Pamusoro pezvakawanda zvinodiwa, mamwe maturusi akakosha anewo akasiyana marongero zvinodiwa.
Marongerwo ezvinodiwa zvecrimping zvishandiso
1) Panofanira kunge pasina zvinhu zvinodarika 3mm 3mm zvakatenderedza curved/chirume, curved/chikadzi crimping mudziyo wepamusoro, uye hapafanirwe kunge paine welding zvishandiso zvakatenderedza 1.5mm;chinhambwe kubva kune rumwe rutivi rwechigadzirwa checrimping kusvika kune pini hole centre ye crimping mudziyo ndeye 2.5 Hapazovi nezvikamu mukati mehuwandu hwemm.
2) Panofanira kunge pasina zvikamu mukati me1mm zvakatenderedza yakatwasuka/murume, yakatwasuka/yechikadzi crimping mudziyo;kana kumashure kweiyo yakatwasuka / yechirume, yakatwasuka / yechikadzi crimping mudziyo inoda kuiswa nesheath, hapana zvikamu zvichaiswa mukati me1mm kubva kumucheto wesheath Kana sheath isina kuiswa, hapana zvikamu zvichaiswa mukati me2.5mm. kubva mugomba recrimping.
3) Iyo mhenyu plug socket yegrounding connector inoshandiswa neEuropean-style connector, kumucheto kwetsono refu ndeye 6.5mm jira rinorambidzwa, uye tsono pfupi i2.0mm yakarambidzwa jira.
4) Pini refu ye2mmFB magetsi ekupa imwe PIN pini inoenderana ne8mm yakarambidzwa jira pamberi peimwe bhodhi socket.
Marongerwo ezvinodiwa zvezvishandiso zvinopisa
1) Panguva yekugadzirwa kwechigadzirwa, chengetedza zvigadziriswe zvinopisa (zvakadai se electrolytic capacitors, crystal oscillators, nezvimwewo) zviri kure nemidziyo inopisa zvakanyanya sezvinobvira.
2) Chigadzirwa chekushisa chinofanira kunge chiri pedyo nechikamu chiri pasi pekuedzwa uye kure nepamusoro-tembiricha nzvimbo, kuitira kuti irege kukanganiswa nemamwe magetsi ekupisa akaenzana zvikamu uye kukonzera kusashanda.
3) Isa zvinhu zvinogadzira kupisa uye zvinodzivirira kupisa padhuze nemhepo yekubuda kana pamusoro, asi kana zvisingakwanisi kumira tembiricha yakakwira, zvinofanirwa kuiswa padyo nemhepo inopinza, uye teerera kukwira mumhepo nekumwe kupisa. midziyo uye kupisa-sensitive madivayiri sezvinobvira Stagger chinzvimbo mugwara.
Kurongeka zvinodiwa nemidziyo yepolar
1) THD zvishandiso zvine polarity kana dhairekitori zvine dhairekitori rimwechete mukurongeka uye zvakarongwa zvakanaka.
2) Kutungamira kweiyo polarized SMC pabhodhi kunofanirwa kuenderana sezvinobvira;michina yemhando imwechete yakarongedzwa zvakanaka uye zvakanaka.
(Zvikamu zvine polarity zvinosanganisira: electrolytic capacitors, tantalum capacitors, diodes, nezvimwewo)
Marongerwo ezvinodiwa zve kuburikidza-gomba reflow soldering zvishandiso
1) Kune maPCB ane asiri ekutapurirana mativi madiki akakura kupfuura 300mm, zvinorema zvinorema hazvifanirwe kuiswa pakati pePCB zvakanyanya sezvinobvira kuderedza kusimba kwehuremu hwe plug-in mudziyo pa deformation yePCB panguva. iyo solder process, uye kukanganisa kweiyo plug-in process pabhodhi.Kukanganisa kwechigadzirwa chakaiswa.
2) Kuti zvive nyore kuisa, chigadziro chinokurudzirwa kuti chirongedzwe pedyo nerutivi rwekushanda rwekuisa.
3) Kureba kwekutungamira kwezvishandiso zvakareba (senge ndangariro sockets, nezvimwewo) inokurudzirwa kuti ienderane negwara rekutumira.
4) Chinhambwe chiri pakati pemupendero we through-hole reflow soldering device pad uye QFP, SOP, connector uye ese maBGA ane pitch ≤ 0.65mm yakakura kudarika 20mm.Chinhambwe kubva kune mamwe maSMT midziyo ndeye> 2mm.
5) Chinhambwe pakati pemuviri we-buri reflow soldering mudziyo unodarika 10mm.
6) Chinhambwe chiri pakati pepedhi kumucheto kwe-buri-gomba reflow soldering mudziyo uye divi rekutumira i ≥10mm;chinhambwe kubva kudivi risiri-kutumira ≥5mm.