Cov cuab yeej tswj fais fab thiab lub zog yuav tsum tsis txhob nkag mus rau PCBA ntau lawm vim tias cov ntaub ntawv BOM, Gerber, thiab xaiv - thiab - qhov chaw cov ntaub ntawv saib kom tiav.
Cov khoom no feem ntau tswj, saib xyuas, hloov, hloov, tiv thaiv, lossis sib txuas lus ntawm lub zog hluav taws xob. Qhov ntawd ua rau cov pob tsim muaj kev nkag siab ntau dua rau lub zog txoj kev teeb tsa, kev sib cais ciam teb, kev coj tus cwj pwm thermal, PCB fabrication zoo, kev sib txuas kev ntxhov siab, kev paub qhov tseeb, firmware teeb tsa, kev sim ua haujlwm, kev tiv thaiv ib puag ncig, thiab kev sib koom ua ke zaum kawg.
Lub Rooj Tswjhwm Saib rau cov khoom siv hluav taws xob, lub zog khaws cia, inverter interface, cov khoom siv them nyiaj, cov khoom siv hluav taws xob muaj hluav taws xob, kev tswj hwm roj teeb, lossis lub txee- cov khoom siv hluav taws xob tuaj yeem dhau qhov kev tshuaj xyuas kev sib dhos yooj yim thiab tseem tsim teeb meem tom qab yog tias siab - thaj chaw tam sim no, kev sib cais, kev kub ntxhov, cov khoom tiv thaiv, cov kev taw qhia txuas, lossis cov kev txwv tsis pub muaj kev soj ntsuam kom meej ua ntej ntau lawm.
Rau cov neeg yuav khoom OEM, cov lus nug tseem ceeb tsis yog "tus khub EMS puas tuaj yeem sib sau ua ke no PCBA?"
Cov lus nug zoo dua yog: Puas yog lub pob tsim ua rau hluav taws xob, thermal, mechanical, source, firmware, thiab test assumption clear txaus rau thawj tsim?
Cov Boards no muaj kev pheej hmoo sib txawv
Cov boards no tsis yog "muaj zog" versions ntawm tus qauv tswj boards.
Lawv tuaj yeem ua tsis tiav hauv ntau txoj kev.
Lub rooj tswj hwm digital yuav ua tsis tiav vim yog qhov chaw tsis raug cai, qhov teeb meem solder, cov khoom uas ploj lawm, firmware mismatch, lossis teeb meem connector. Cov kev pheej hmoo no tseem muaj nyob hauv lub hwj chim- ntsig txog cov khoom siv hluav taws xob, tab sis lawv tau koom nrog kev ntxhov siab ntawm hluav taws xob, hluav taws xob, kub, qhov ceev tam sim no, rwb thaiv tsev, kev tiv thaiv teb, thiab lub sij hawm ntev - degradation.
Cov cheeb tsam txaus ntshai yuav muaj xws li:
- Kev puas tsuaj ntawm rwb thaiv tsev nyob qhov twg qhov sib txawv, kev sib kis, lossis cov khoom siv tsis raug tswj;
- overheating nyob ib ncig ntawm siab - txoj kev tam sim no lossis cov khoom siv fais fab;
- tam sim no overload los ntawm undersized kab, terminals, los yog solder pob qij txha;
- capacitor kev nyuaj siab tshwm sim los ntawm tshav kub, ripple, los yog qhov chaw tsis zoo;
- solder leeg qaug zog tshwm sim los ntawm thermal cycling lossis mechanical load;
- EMI / EMC rhiab heev lossis suab nrov;
- txheej, potting, los yog teeb meem kab mob nyob ib ncig ntawm qhov chaw cais;
- teb thaiv kev ntxhov siab ntawm siab - cov khoom txuas tam sim no.
Tsis yog txhua pawg tswj hwm ntsib tag nrho cov kev pheej hmoo no.
Qhov ntawd yog lub ntsiab lus.
Ua ntej pib tsim, OEM thiab EMS tus khub yuav tsum txhais cov kev pheej hmoo uas muaj nyob rau hauv cov khoom, thiab cov tshev yuav tsum tau tswj lawv.
Pib los ntawm Txhais Txoj Kev Faib thiab Txoj Kev Tswj
Lub zog thiab lub zog tswj cov cuab yeej feem ntau sib txuas ob lub ntiaj teb sib txawv ntawm tib lub PCBA: txoj kev fais fab thiab txoj kev tswj.
Txoj kev fais fab tuaj yeem suav nrog cov davhlau ya nyob twg, relays, MOSFETs, IGBTs, fuses, tam sim no shunts, transformers, inductors, capacitors, contactors, busbar interfaces, lossis siab - tam sim no connectors.
Txoj kev tswj yuav muaj xws li MCUs, kev sib txuas lus ICs, optocouplers, sensors, ADC circuits, gate drivers, LEDs, HMI interfaces, los yog firmware-tswj logic.
Ob txoj hauv kev tseem ceeb, tab sis lawv tsis tsim tib cov lus nug tsim khoom.
Ua ntej PCBA ntau lawm pib, pab pawg EMS yuav tsum nkag siab:
- cov cheeb tsam twg yog lub zog nkag thiab tso zis;
- thaj chaw twg yog qhov tsawg -voltage tswj lossis kev sib txuas lus;
- nyob qhov twg cov ciam teb cais;
- cov khoom twg yog kev nyab xeeb - tseem ceeb lossis ua haujlwm - tseem ceeb;
- uas cov khoom yuav tsum tau polarity, orientation, los yog spacing xim;
- uas solder pob qij txha yog siab -tam sim no los yog mechanically stressed;
- cov teeb liab twg yuav tsum raug kuaj thaum lub sijhawm ua haujlwm pov thawj.
BOM tsis ib txwm qhia qhov no kom meej.
Daim duab kos duab kos duab, daim ntawv schematic, kos duab sib dhos, thiab cov txheej txheem xeem yuav xav tau kom nkag siab tias PCBA yuav tsum coj li cas.
Lub hwj chim tswj tsis yog tsuas yog cov neeg siv PCB xwb.
Nws yog ib txoj hauv kev tswj lub zog nrog kev txiav txim siab - ua Circuit Court txuas rau nws.
Kev rho tawm thiab sib nrug yuav tsum tau tshuaj xyuas ua ntej los ua ke
Kev rho tawm yog ib qho tseem ceeb tshaj plaws rau kev kuaj xyuas lub zog thiab lub zog tswj cov cuab yeej.
Qhov no tsis yog lub ntsiab lus tsim PCB nkaus xwb. Nws tseem cuam tshuam rau kev sib dhos, tu, txheej, tshuaj xyuas, thiab rov ua haujlwm dua.
Ua ntej tsim thawj zaug, pab neeg yuav tsum paub meej tias:
- qhov twg high-voltage thiab low-voltage cheeb tsam raug cais;
- seb qhov creepage thiab clearance yuav tsum tau txhais los ntawm cov khoom tsim;
- Txawm hais tias qhov qhib, txiav tawm, thaiv, lossis khaws - tawm thaj chaw yog ib feem ntawm kev tsim;
- seb qhov kev tso kawm tivthaiv khaws cia thaj chaw cais tawm;
- Txawm hais tias txoj kab kev sib cais los ntawm kev tsim vaj huam sib luag los yog tshem tawm kev txhawj xeeb;
- Txawm hais tias cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov xaim xoob xoob, lossis kev sib kis tuaj yeem tsim kev pheej hmoo;
- seb puas yuav tsum tau txheej txheej, potting, los yog daim npog qhov ncauj;
- seb puas rov ua haujlwm nyob ze thaj chaw cais yuav tsum tau kev pom zoo tshwj xeeb;
- seb daim ntawv lo lossis cov lus ceeb toom xav tau ntawm lub rooj sib txoos zaum kawg.
EMS tus khub yuav tsum tsis txhob txiav txim siab cais tawm los ntawm kev kwv yees.
Tus neeg yuav khoom yuav tsum txhais cov khoom lag luam xav tau thiab cov qauv tsim los yog kev nyab xeeb yuav tsum tau ua. Pab pawg EMS tuaj yeem pab ua kom paub tseeb tias txoj kev tsim khoom tsis ua rau cov kev xav tau.
Lub rooj tsavxwm tuaj yeem saib huv ntawm lub rooj ntev zaum thiab tseem ua yuam kev yog tias thaj tsam kev sib cais tsis raug hwm thaum sib dhos.
PCB Fabrication Quality yog ib feem ntawm lub zog kev ntseeg tau
Rau cov khoom siv hluav taws xob thiab hluav taws xob tswj, PCB liab qab tsis yog tsuas yog cov khoom siv rau cov khoom siv.
Nws kuj yuav yog ib feem ntawm txoj kev tam sim no, kev rwb thaiv tsev, txoj kev tshav kub, thiab cov qauv siv tshuab.
Ua ntej kev sib dhos pib, PCB fabrication pob yuav tsum raug tshuaj xyuas rau cov teeb meem uas yuav tsis muaj teeb meem ntau ntawm lub teeb pom kev zoo -lub luag haujlwm digital board tab sis tuaj yeem ua rau lub hwj chim loj - cuam tshuam nrog lub rooj tsavxwm.
Cov kev txheeb xyuas muaj txiaj ntsig muaj xws li:
- tooj liab qhov hnyav thiab tooj liab sib npaug rau siab - thaj chaw tam sim no;
- kab dav thiab tooj liab ncuav tsim rau txoj kev xav tau tam sim no;
- plated los ntawm - qhov zoo rau terminals, relays, connectors, thiab transformers;
- qhov, txiav tawm, thiab kev sib cais feature zoo;
- solder npog clearance nyob ib ncig ntawm high-voltage los yog siab- thaj chaw tam sim no;
- board thickness thiab pawg-up qhov twg nias- haum, hnyav connectors, los yog thermal paths koom;
- Cov khoom siv laminate xaiv qhov kub, rwb thaiv tsev, lossis ib puag ncig raug teeb meem;
- kev huv huv kev cia siab rau thaj chaw uas cuam tshuam rau rwb thaiv tsev lossis txheej txheej.
Qhov no tsis txhais hais tias txhua lub zog-txog PCBA xav tau cov khoom siv txawv txawv lossis tooj liab hnyav.
Qee lub rooj tswj xyuas hluav taws xob feem ntau yog qis -voltage sensing and communication boards.
Lub ntsiab lus yog kom paub meej tias PCB specification phim qhov tseeb hluav taws xob, thermal, thiab mechanical luag hauj lwm ntawm lub rooj tsavxwm.
Hnyav tooj liab thiab Thermal Mass hloov cov txheej txheem los ua ke
Lub hwj chim- ntsig txog PCBAs feem ntau suav nrog hnyav tooj liab, cov ntaub qhwv loj, cov dej dav dav, thiab siab - cov khoom loj.
Cov yam ntxwv no tuaj yeem hloov pauv li cas cov cua sov txav thaum lub sij hawm soldering.
Ib cheeb tsam tooj liab loj tuaj yeem rub tawm ntawm qhov sib koom ua ke. Lub davhlau ya nyob twg thaiv lossis tus pin relay tuaj yeem xav tau cua sov ntau dua li cov khoom me me nyob ze. Lub zog tivthaiv nrog lub ncoo nthuav tawm loj tuaj yeem xav tau kev tswj hwm kev tswj hwm thiab tshuaj xyuas dhau qhov yooj yim sab saum toj - sab pom.
Ua ntej kev tsim khoom, kev tshuaj xyuas los ua ke yuav tsum xav txog:
- seb qhov reflow profile haum rau ob lub teeb liab me me thiab siab - thaj chaw loj;
- txawm tias dhau los ntawm - qhov hluav taws xob qhov chaw xav tau nthwv dej, xaiv, tus pin-hauv- muab tshuaj txhuam, lossis tes soldering;
- seb cov ntaub qhwv loj xav tau kev hloov kho stencil aperture;
- Txawm hais tias cov qauv thermal nyem cuam tshuam rau kev ua haujlwm lossis kev xav tau tam sim no;
- seb cov khoom hnyav puas xav tau kev txhawb nqa ntxiv thaum tuav lossis vibration;
- seb puas xav tau X-Ray tshuaj ntsuam xyuas rau cov ntaub thaiv npog zais lossis cov pob qij txha;
- seb puas rov ua haujlwm nyob ib puag ncig siab - pawg loj yog qhov ua tau zoo thiab tswj tau.
Qhov kev pheej hmoo tsis yog ib qho kev sib koom ua ke uas ploj lawm xwb.
Qhov kev pheej hmoo yog qhov lees txais tau - saib kev sib koom ua ke uas tsis ua haujlwm zoo nyob rau hauv tam sim no, cua sov, lossis kev ntxhov siab.
Tias yog vim li cas lub hwj chim- ntsig txog kev npaj ua ke yuav tsum tsis txhob siv lub tswv yim rov qab ua dua tshiab rau txhua qhov chaw ntawm pawg thawj coj.
Thermal Reality yuav tsum tau kuaj xyuas ua ntej tsim thawj
Lub zog thiab lub zog tswj PCBAs feem ntau muaj qhov chaw uas tsim kom muaj cua sov los yog nyob ntawm txoj kev npaj thermal.
Qhov ntawd yuav muaj xws li fais fab semiconductors, regulators, relays, transformers, shunts, inductors, resistors, charging circuits, high -tam sim no terminals, los yog fais fab connectors.
Kev tshuaj xyuas yuav tsum tsis txhob tso tseg ntawm "qhov kev ntsuas ntsuas tau txais."
Kev tsim khoom yuav tsum paub tias cov cua sov tswj tau li cas hauv kev tsim tiag.
Cov kev txheeb xyuas muaj txiaj ntsig muaj xws li:
- qhov twg yuav tsum tau ua kom sov;
- seb cov dab dej kub, thermal pads, hlau brackets, los yog enclosure tiv tauj yuav tsum tau;
- seb qhov ntsuas qhov siab puas cuam tshuam rau kev sib cuag thermal;
- seb cov pob qij txha yog ib feem ntawm txoj kev tam sim no los yog cua sov;
- seb cov ntaub ntawv thermal yuav tsum muab tso rau hauv ib qho chaw tshwj xeeb;
- seb cov ntsia hlau ua ntu zus los yog qhov teeb meem ntawm qhov kev siv thermal;
- txawm tias cables lossis harnesses thaiv airflow;
- seb qhov kev sib dhos zaum kawg hloov pauv qhov thermal piv nrog lub rooj tsavxwm - kev ntsuas qib.
Qhov no tsis txhais hais tias txhua yam khoom xav tau kev simulation siab heev.
Tab sis yog tias cov khoom kawg yog nyob ntawm kev sib cuag, airflow, thermal pads, los yog hlau mounting, cov ntsiab lus yuav tsum tau muab tso rau hauv lub pob tsim ua ntej ntau lawm pib.
Lub rooj tsavxwm uas dhau qhov kev sim ua haujlwm luv luv kuj tseem xav tau kev tshuaj xyuas thermal rau kev ua haujlwm tiag tiag.
Siab -Txoj kev sib txuas tam sim no xav tau ntau dua li kev kuaj pom
Lub zog thiab lub zog tswj cov cuab yeej siv feem ntau siv cov khoom sib txuas, cov khoom siv hluav taws xob, cov ntsia hlau thaiv, cov chaw nres tsheb sib txuas, cov hniav txuas, cov khoom siv hluav taws xob, lossis cov kab hluav taws xob uas nqa tam sim no lossis txuas mus rau kev xaim hluav taws xob.
Cov cheeb tsam no tsim nyog saib xyuas tshwj xeeb.
Kev ntsuam xyuas kev tsim kho yuav tsum xyuas:
- connector orientation;
- nkag mus rau lub davhlau ya nyob twg;
- txoj kev soldering;
- qhov sau thiab ntub dej qhov twg los ntawm - qhov chaw siv;
- mechanical kev them nyiaj yug;
- nyem nyem;
- kab tawm kev taw qhia;
- torque los yog fastening yuav tsum tau nyob qhov twg muaj;
- kev tshuaj xyuas ua ntej kaw kaw;
- daim ntawv lo rau cov kab hluav taws xob;
- kev pab cuam tom qab installation.
Lub siab -tam sim no connector tuaj yeem ua hluav taws xob txuas ntxiv thiab tseem yuav muaj kev pheej hmoo ntau yog tias nws qaij, tsis muaj kev txhawb nqa, nyuaj rau kev nkag mus, lossis ntxhov siab los ntawm cable.
Cov lus nug tswv yim tsis yog "Puas yog nws coj?"
Cov lus nug zoo dua yog: puas yuav muaj kev sib txuas ntxiv tom qab kev sib dhos, kev sim, kev xa khoom, kev teeb tsa, thiab kev pabcuam?
Cov khoom tiv thaiv yuav tsum raug kho raws li qhov tseem ceeb
Lub hwj chim thiab lub zog tswj cov boards feem ntau suav nrog cov khoom tiv thaiv cov khoom lossis cov khoom siv nyob ib puag ncig nws.
Cov no tuaj yeem suav nrog fuses, MOVs, TVS diodes, NTC thermistors, shunts tam sim no, cov khoom siv cais tawm, relays, optocouplers, surge-cov khoom cuam tshuam, lossis ntsuas kub.
Cov khoom no yuav tsum tsis txhob raug kho zoo li BOM kab.
Ua ntej tsim, pab neeg yuav tsum qhia meej:
- cov khoom twg yog kev tiv thaiv- cuam tshuam;
- seb puas pom zoo hloov pauv tau tso cai;
- seb pob, kev ntaus nqi, kev ua siab ntev, lossis kev coj tus cwj pwm teb tseem ceeb;
- seb kev taw qhia yog qhov tseem ceeb;
- seb kev hloov pauv yuav tsum tau txais kev pom zoo rau cov neeg siv khoom;
- seb kev tshuaj ntsuam xyuas lossis kev sim ua haujlwm yuav tsum paub meej txog txoj kev tiv thaiv;
- seb qhov twg cuam tshuam rau kev tswj hwm lossis cov khoom lag luam - qib validation.
Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog thaum rov ua dua.
Ib qho kev hloov pauv tuaj yeem haum rau cov ntaub qhwv thiab tseem hloov cov khoom coj cwj pwm. Rau kev tiv thaiv-xov xwm circuits, "tib hneev taw" tsis txaus.
Cov pob tsim yuav tsum ua kom tsis muaj - hloov pauv thiab tswj tau - cov cai hloov pauv kom meej.
Cov Khoom Siv Khoom Siv Khoom Siv yuav tsum tau tshuaj xyuas ua ntej kev txiav txim siab zaum kawg
Fais fab semiconductors, siab -voltage capacitor, magnetics, relays, connectors, sensors, thiab tiv thaiv cov khoom tuaj yeem tsim kev pheej hmoo.
Qee qhov chaw yuav muaj lub sijhawm ua haujlwm ntev. Qee qhov yuav tau txais kev pom zoo nruj - qhov yuav tsum tau muaj. Qee qhov yuav muaj hluav taws xob, thermal, lossis kev nyab xeeb -cov yam ntxwv cuam tshuam uas ua rau muaj kev pheej hmoo ntawm kev hloov pauv.
Ua ntej thawj qhov tsim, kev tshuaj xyuas cov khoom yuav tsum paub meej tias:
- cov khoom twg yog qhov tseem ceeb;
- cov khoom twg muaj lub sij hawm ntev los yog tsis ruaj khov;
- cov khoom twg yuav tsum yog los ntawm cov ntawv tso cai lossis pom zoo;
- seb puas muaj lwm yam kev pom zoo;
- seb cov kev hloov pauv puas cuam tshuam rau tus cwj pwm thermal, kev tiv thaiv tus cwj pwm, lossis kev txwv kev sim;
- seb hnub code, ntau, lossis tus neeg xa khoom traceability yuav tsum tau;
- seb tus neeg siv khoom- cov khoom siv puas xav tau cov cai tshuaj xyuas tuaj.
Lub hom phiaj tsis yog ua kom BOM nruj.
Lub hom phiaj yog txhawm rau tiv thaiv kev hloov pauv tsis tau hloov pauv.
Rau cov khoom siv hluav taws xob thiab hluav taws xob tswj, kev hloov tsis raug tuaj yeem ua rau hnyav dua li kev yuav khoom tsis yooj yim.
Nws tuaj yeem hloov pauv qhov khoom coj li cas.
Kev hnov lus thiab cov lus teb Circuit Court xav tau cov xwm txheej kuaj tau
Ntau lub zog tswj cov khoom nyob ntawm seb qhov kev xav thiab kev tawm tswv yim.
PCBA tuaj yeem ntsuas qhov voltage, tam sim no, qhov kub thiab txias, roj teeb xwm txheej, kev thauj khoom, lub xeev relay, lossis kev sib txuas lus. Yog tias cov circuits no tsis raug kuaj raws li cov ntsiab lus tseem ceeb, lub rooj tsav xwm yuav dhau lub zog yooj yim - ntawm daim tshev tab sis ua tsis tiav hauv cov khoom tiag.
Ua ntej kev tsim khoom, lub phiaj xwm kev sim yuav tsum txhais:
- uas sensing channel yuav tsum tau xyuas;
- seb puas yuav tsum tau calibration;
- seb qhov ntsuas qhov tseem ceeb xav tau kev txwv lossis tsuas yog dhau / tsis ua raws li txoj cai;
- seb tam sim no, voltage, los yog kub simulation yog xav tau;
- seb relay lossis tso zis hloov pauv yuav tsum tau siv;
- seb cov ntaub ntawv sib txuas lus yuav tsum tau kuaj xyuas;
- seb firmware version cuam tshuam rau kev ntsuas tus cwj pwm;
- seb cov ntaub ntawv xeem yuav tsum khaws cov nqi ntsuas.
Ib qho kev ntsuas hluav taws xob yog ib qho yooj yim rau kev saib xyuas vim tias nws yuav tsis pom zoo li qhov txuas lossis lub dab dej kub.
Tab sis nyob rau hauv lub hwj chim thiab lub zog tswj cov cuab yeej, kev paub yog feem ntau yog dab tsi tso cai rau cov khoom txiav txim siab.
Yog tias txoj kev tawm tswv yim tsis raug, kev tswj xyuas qhov kev xav yuav tsis raug txawm tias thaum PCBA tau sib sau ua ke kom raug.
Firmware thiab Configuration yuav tsum tau tswj ua ntej kuaj
Firmware yog cov tswv yim ntau lawm, tsis yog qhov nthuav dav.
Rau cov khoom siv tswj fais fab thiab lub zog, firmware tuaj yeem tswj kev hloov pauv tus cwj pwm, kev sib txuas lus raws tu qauv, kev tiv thaiv kev tiv thaiv, lub sij hawm relay, them cov logic, kev qhia yuam kev, ntsuas qhov tseem ceeb, tso saib cov ntaub ntawv, lossis hom kev sim.
Ua ntej kev sim ua haujlwm pib, pab pawg EMS thiab cov neeg yuav khoom yuav tsum paub meej tias:
|
Firmware / Configuration Item |
Vim Li Cas Nws Tseem Ceeb |
|
Firmware version |
Paub meej tias qhov kev tso tawm raug yog programmed |
|
Configuration file |
Txhais cov khoom sib txawv lossis cov neeg siv khoom |
|
Calibration ntaub ntawv |
Txhawb kev ntsuas qhov tseeb qhov xav tau |
|
Serial tooj los yog chaw nyob |
Txhawb traceability thiab kev sib txuas lus teeb tsa |
|
Bootloader los yog programming txoj kev |
Muaj feem cuam tshuam rau txoj kev programming |
|
Test hom |
Txhawb kev txheeb xyuas ntau lawm |
|
Hloov txoj cai tswj |
Tiv thaiv cov qub thiab tshiab los ntawm kev sib xyaw |
Lub rooj tsavxwm nrog cov khoom kho kom raug thiab cov firmware tsis ncaj ncees kuj tseem yog cov khoom tsis raug.
Tib yam siv rau kev teeb tsa.
Yog tias lub rooj tsavxwm muaj qhov sib txawv ntawm lub zog, chaw nyob sib txuas lus, kev txwv tam sim no, lossis cov neeg siv khoom - cov ntsiab lus tshwj xeeb, cov ntsiab lus yuav tsum raug tswj ua ntej thawj cov ntaub ntawv xeem raug tsim.
Kev tshuaj xyuas yuav tsum ua raws li thaj chaw muaj kev pheej hmoo
Kev tshuaj xyuas rau lub zog thiab lub zog tswj PCBAs yuav tsum tsis txhob raug kho raws li ib qho kev pom zaum kawg.
Cov chaw sib txawv yuav tsum tau kuaj xyuas sib txawv.
Ib txoj kev npaj tshuaj ntsuam xyuas yuav muaj xws li:
|
Thaj tsam |
Muaj peev xwm soj ntsuam kom pom tseeb |
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SMT cov khoom |
Polarity, qhov chaw, cov pob qij txha, zoo -pitch qhov chaw |
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Los ntawm - qhov hluav taws xob qhov chaw |
Qhov chaw sau, ntub dej, txhuas protrusion, thermal huab cua cuam tshuam |
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Siab - cov khoom txuas tam sim no |
Rooj zaum, solder zoo, txhua yam kev txhawb nqa |
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Cov cheeb tsam cais tawm |
Kev huv huv, sib nrug, txheej txheej, tsis xav tau cov khoom seem lossis cov khib nyiab |
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Thaum tshav kub kub- ntsig txog qhov chaw |
Thermal ncoo, kub dab dej, mounting, tiv tauj nto |
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Cov khoom tiv thaiv |
Qhov tseeb, kev taw qhia, kev pom zoo hloov pauv |
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Daim ntawv lo thiab ceeb toom |
Kev tso kawm kom raug thiab nyeem tau |
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Reworked thaj chaw |
Kev tshuaj xyuas thiab rov ua dua tom qab kho |
Tsis yog txhua lub rooj tsavxwm xav tau txhua txoj kev tshuaj xyuas.
AOI, X-ray, kev tshuaj xyuas qhov muag, ICT, FCT, kev tshuaj xyuas zaum kawg, thiab cov neeg siv khoom- cov kev txheeb xyuas tshwj xeeb yuav tsum raug xaiv raws li pawg thawj coj saib kev pheej hmoo tiag tiag.
Qhov tseem ceeb yog lub sijhawm.
Qee qhov teeb meem yuav tsum tau tshuaj xyuas ua ntej txheej txheej, potting, kaw qhov rooj, kev teeb tsa lub dab dej kub, lossis kev xa xov hluav taws xob ua rau lawv tsis pom.
Test Fixtures yuav tsum tiv thaiv lub Rooj Tswjhwm Saib thiab ntsuas nws
Lub zog thiab lub zog tswj PCBAs tuaj yeem hnyav dua, tuab dua, siab dua, lossis ua haujlwm tsis yooj yim dua li cov qauv logic boards.
Lawv kuj tseem tuaj yeem suav nrog cov capacitors loj, relays, lub davhlau ya nyob twg blocks, transformers, shunts, heat sinks, los yog siab -tam sim no connectors uas ua rau kev ntsuam xyuas nyuaj.
Ib qho kev sim ntsuas yuav tsum tsis txhob tsim qhov kev pheej hmoo tshiab thaum sim xyuas lub rooj tsavxwm.
Ua ntej kev tsim khoom, pab pawg yuav tsum xav txog:
- seb lub fixture txhawb lub rooj tsavxwm nyob rau hauv siab - quab yuam cov cheeb tsam;
- seb pogo pins lossis mating connectors tuaj yeem ncav cuag qhov tseeb;
- seb qhov siab yog tiv thaiv los ntawm kev sib tsoo;
- seb siab -voltage lossis siab- qhov chaw sim tam sim no raug tiv thaiv;
- seb tus neeg teb xov tooj nkag mus tau zoo thiab rov ua dua;
- seb qhov sib tiv tauj puas tuaj yeem khoov lub PCB lossis kev ntxhov siab solder pob qij txha;
- seb cov cables kuaj puas muaj mob-relieved;
- seb puas ua tsis tau tejyam tuaj yeem raug tshem tawm kom nyab xeeb rau kev debug.
Ib qho kev sim fixture yog ib feem ntawm cov txheej txheem tsim khoom.
Yog hais tias lub fixture khoov lub rooj tsavxwm, overloads ib connector, los yog ua rau tus neeg teb xov tooj tuav inconsistent, qhov kev ntsuam xyuas tej zaum yuav huv si thaum tus txheej txheem tsis.
Kev soj ntsuam ua haujlwm yuav tsum muaj kev cuam tshuam cov khoom coj tus cwj pwm
Lub zog thiab lub zog tswj PCBA yuav tsum tsis txhob tso tawm tsuas yog vim nws tig rau.
Qhov kev ntsuam xyuas yuav tsum muaj kev cuam tshuam cov khoom lag luam muaj nuj nqi ntau npaum li qhov ua tau zoo rau theem ntau lawm.
Nyob ntawm qhov project, kev sim ua haujlwm yuav suav nrog:
- lub zog input check;
- tso zis tswj xyuas;
- relay lossis hloov cov lus teb;
- voltage los yog tam sim no sensing;
- kev sib txuas lus interface;
- txhaum teeb liab los yog tswb tso zis;
- LED los yog cov ntawv qhia;
- firmware version paub meej;
- calibration lossis parameter pov thawj;
- load simulation qhov twg yuav tsum tau;
- connector thiab terminal continuity;
- zaum kawg kev pom thiab daim ntawv lo tshuaj xyuas.
Qhov kev xeem tsis tas yuav rov tsim dua txhua qhov chaw tshwj tsis yog tus neeg siv khoom xav tau.
Tab sis nws yuav tsum npog cov khoom coj cwj pwm uas tseem ceeb rau kev tso tawm.
Lub hwj chim maub los uas dhau qhov kev kuaj zoo li qub tseem yuav ua tsis tau yog tias qhov hloov pauv hloov pauv, nkag siab cov tswv yim, kev sib txuas lus sib txuas lus, lossis qhov qhia yuam kev tsis tau siv.
Cov phiaj xwm kev sim yuav tsum ua kom cov ciam teb meej meej.
Txheej, potting, thiab tu yuav tsum tau txiav txim siab ua ntej ntau lawm
Qee lub zog thiab lub zog tswj PCBAs yuav xav tau cov txheej txheem sib xws, potting, xaiv txheej, npog, lossis tu tshwj xeeb.
Cov txheej txheem no yuav tsum tsis txhob ntxiv casually tom qab sib dhos.
Lawv tuaj yeem cuam tshuam rau cov khoom sib txuas, cov ntsiab lus ntsuas, cov cua sov dissipation, rov ua haujlwm dua, cov ntawv lo, thiab cov kev pabcuam yav tom ntej.
Ua ntej kev tsim khoom, pab pawg yuav tsum txhais:
- seb puas yuav tsum tau txheej los yog potting;
- cov cheeb tsam twg yuav tsum tau coated;
- thaj chaw twg yuav tsum tau npog;
- seb cov qhab nia xeem yuav tsum nyob li cas;
- Txawm hais tias cov khoom sib txuas, hloov pauv, relays, lossis cov duab xav tau kev tiv thaiv;
- seb cov txheej txheem khaws cia - tawm tsam yuav tsum tau nyob ib puag ncig kho qhov chaw, qhov cua, lossis kev sib cuag;
- thaum kuaj kev ua haujlwm yuav tsum tshwm sim;
- seb puas rov ua dua tau tso cai tom qab txheej los yog potting;
- yuav ua li cas lub coated los yog potted cheeb tsam yuav tsum tau soj ntsuam.
Yog tias txheej txheej ntxiv tom qab sau cov phiaj xwm sim, pab pawg yuav pom tau lig dhau lawm tias cov ntsiab lus xeem raug them lossis cov khoom sib txuas tsis raug.
Cov txheej txheem tiv thaiv yuav tsum yog ib feem ntawm txoj kev npaj tsim, tsis yog qhov kawg -feeb ntxiv- rau.
Traceability yuav tsum npog cov khoom uas muaj teeb meem tom qab
Traceability tsuas yog pab tau yog tias nws pab teb cov lus nug tiag tiag tom qab tsim khoom.
Rau cov khoom siv hluav taws xob thiab hluav taws xob tswj, traceability yuav tsum tau txuas:
- Kev hloov kho PCB;
- BOM hloov kho;
- pom zoo alternates;
- qhov tseem ceeb feem ntau yog qhov xav tau;
- firmware version;
- calibration cov ntaub ntawv nyob qhov twg yuav tsum tau;
- xeem ntawv;
- rework keeb kwm;
- daim ntawv lo los yog serial tooj;
- cov ntaub ntawv xa khoom.
Qhov xav tau qhov tob yog nyob ntawm cov khoom txaus ntshai.
Ib qho yooj yim tswj module yuav xav tau batch-theem traceability. Ib daim teb- tau teeb tsa lub zog tswj hwm, them nyiaj interface, roj teeb- cuam tshuam nrog lub rooj tsav xwm, lossis cov khoom siv hluav taws xob tau teeb tsa yuav xav tau kev sib txuas zoo dua ntawm chav tsev yog tus kheej, firmware, kuaj cov txiaj ntsig, thiab cov ntaub ntawv xa khoom.
Lub hom phiaj tsis yog los tsim cov ntaub ntawv rau nws tus kheej.
Lub hom phiaj yog kom paub tseeb tias cov ntaub ntawv tuaj yeem teb cov lus nug yog thaum rov hais dua, qhov teeb meem hauv teb, lossis kev tshawb xyuas cov neeg siv khoom.
Dab tsi OEM Cov Neeg Yuav Tsum Yuav Tsum Qhia Ua Ntej Ua Ntej Tsim
Cov neeg yuav khoom OEM tuaj yeem pab EMS tus khub npaj lub zog thiab lub zog tswj PCBA ntau lawm los ntawm kev txheeb xyuas qhov tseem ceeb tsim cov kev xav thaum ntxov.
Cov tswv yim muaj txiaj ntsig muaj xws li:
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Tus neeg yuav khoom nkag |
Vim Li Cas Nws Pab |
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Khoom hauj lwm piav qhia |
Piav seb lub rooj tsavxwm tswj, saib xyuas, lossis tiv thaiv dab tsi |
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Active PCB thiab BOM hloov kho |
Tiv thaiv kev tsim pob tsis sib haum |
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Schematic lossis tseem ceeb circuits sau ntawv |
Pab txheeb xyuas lub zog, kev paub, kev sib cais, thiab chaw tiv thaiv |
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Lub zog txoj kev thiab cov ntawv cais |
Ua kom muaj kev nyab xeeb- muaj feem cuam tshuam cov kev xav pom |
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Pom zoo hloov pauv thiab tsis muaj - cov khoom hloov pauv |
Tswj cov khoom txaus ntshai |
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Mechanical lossis enclosure ntaub ntawv |
Txhawb thermal, connector, thiab clearance xyuas |
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Firmware thiab configuration cov cai |
Txhawb kev ua haujlwm thiab kev sim ua haujlwm |
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Cov txheej txheem xeem thiab txwv kev txais |
Txhais cov txheej txheem tso tawm |
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Calibration yuav tsum tau nyob qhov twg muaj |
Txhawb kev ntsuas - cov rooj sib tham |
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Txheej, potting, los yog tu yuav tsum tau |
Tiv thaiv cov txheej txheem tsis sib haum xeeb |
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Labeling thiab traceability cov cai |
Txhawb kev rov tsim khoom thiab kev txhawb nqa teb |
Yog tias cov tswv yim no tsis meej, EMS tus khub kuj tseem tuaj yeem sib sau ua ke PCBA.
Tab sis thawj qhov tsim yuav tsim cov lus nug uas zam tau uas yuav tsum tau teb ua ntej pib tsim khoom.
Ua ntej Lub Tsev Hluav Taws Xob thiab Hluav Taws Xob Tswj PCBA
Rau cov neeg yuav khoom OEM, lub sijhawm nyab xeeb tshaj plaws los piav qhia lub zog- cuam tshuam txog kev tsim kev pheej hmoo yog ua ntej thawj qhov kev txiav txim PCBA nkag mus rau ntau lawm.
Rau OEM tej yaam num, STHL'sPCB AssemblythiabKev kuaj thiab tshuaj xyuasCov kev sib tham tuaj yeem pab qhia meej txog cov khoom tsim muaj xws li cov khoom siv hauv kev tsim khoom, lub zog- kev paub txog txoj hauv kev, kev tuav cov khoom sib txuas, firmware version, kev tshuaj ntsuam xyuas, kev sim ua haujlwm, kev sau npe, thiab rov ua dua - txhim kho traceability.
Lub hom phiaj tsis yog ua kom qhov project nyuaj tshaj qhov tsim nyog.
Lub hom phiaj yog kom paub tseeb tias cov pob tsim muaj kev cuam tshuam li cas lub rooj tsavxwm yuav tswj tau tiag tiag, saib xyuas, lossis tiv thaiv lub zog hauv cov khoom tiav.
Npaj lub zog lossis lub zog tswj PCBA project rau kev tshuaj xyuas? Xa koj cov ntaub ntawv los ntawmThov ib daim Quotelos yog emailinfo@pcba-china.com.
Xaus
Lub zog thiab lub zog tswj cov cuab yeej yuav tsum tsis txhob txav mus rau hauv PCBA ntau lawm ntawm cov ntaub ntawv tiav ib leeg.
Ib pob BOM thiab Gerber tiav tseem tuaj yeem tso cov lus nug tseem ceeb tsis teb.
Ua ntej thawj tsim, OEM cov neeg yuav khoom thiab EMS cov neeg koom tes yuav tsum paub meej txog txoj kev fais fab, kev sib cais ciam teb, PCB fabrication yuav tsum, thermal assumption, siab -tam sim no connectors, tiv thaiv Cheebtsam, cov kev cai, sensing circuits, firmware, soj ntsuam Scope, xeem txoj kev, txheej los yog potting cov cai, thiab traceability cov cai.
Cov lus qhia siv tau yooj yim:
Tsis txhob tos thawj qhov tsim kom nthuav tawm cov kev xav.
Ua qhov kev xav pom ua ntej PCBA tsim.
