Raws li tus neeg nqa khoom ntawm cov khoom siv hluav taws xob thiab tus yuam sij rau kev sib txuas hluav taws xob, kev ua haujlwm ntawm cov ntawv luam tawm Circuit Court ncaj qha cuam tshuam rau kev nyab xeeb, kev cia siab, thiab kev txawj ntse ntawm tsheb. Raws li cov khoom siv tseem ceeb ntawm pcb, pcb board plays lub luag haujlwm tseem ceeb hauv kev ua kom tau raws li qhov nyuaj thiab xav tau kev ua haujlwm ntawm lub tsheb. Ntau hom kev siv automotive pcb boards, nrog rau lawv cov khoom tshwj xeeb, txhawb kev ua haujlwm ruaj khov ntawm automotive electronic systems.
1, FR-4 board: cov khoom siv dav siv
FR-4 yog tooj liab-clad laminate reinforced iav fiber ntau daim ntaub thiab raws li epoxy resin, uas yog dav siv nyob rau hauv lub teb ntawm automotive pcb. Nws muaj cov cuab yeej zoo thiab muaj peev xwm tiv taus kev vibrations thiab kev cuam tshuam thaum lub sijhawm ua haujlwm ntawm lub tsheb, ua kom muaj kev ncaj ncees ntawm cov qauv Circuit Court. Hais txog hluav taws xob kev ua tau zoo, FR-4 muaj kev ruaj ntseg rwb thaiv tsev ua haujlwm, uas tuaj yeem tiv thaiv Circuit Court luv luv thiab xyuas kom ruaj khov teeb liab kis tau tus mob.
FR-4 board yog dav siv nyob rau hauv qee qhov tsis tseem ceeb ntawm lub tsheb uas muaj qhov yuav tsum tau nruj me ntsis rau qhov ntsuas kub thiab hluav taws xob, xws li cov teeb pom kev zoo sab hauv hluav taws xob thiab qee qhov yooj yim sensor circuits. Txhawm rau ua kom tau raws li qhov yuav tsum tau muaj kev ntseeg siab dua ntawm kev lag luam tsheb, ntau yam kev txhim kho kuj tau ua rau FR-4 cov ntaub ntawv. Piv txwv li, los ntawm kev ua kom cov iav hloov pauv kub, nws qhov kev ruaj ntseg nyob rau hauv qhov chaw kub kub tuaj yeem txhim kho. Tus nqi Tg ntawm FR-4 zoo ib yam yog feem ntau ntawm 130-140 degree, thaum Tg ntawm automotive qib FR-4 cov khoom tuaj yeem nce mus rau 150℃lossis txawm siab tshaj 170 degree, tso cai rau nws ua haujlwm zoo dua hauv cov chaw kub kub xws li cov cav tov, kom tsis txhob muaj teeb meem xws li phaj deformation thiab Circuit Court tsis ua haujlwm.
2, Cov ntaub ntawv siab Tg: lub zog tseem ceeb hauv kev hais txog kev kub ntxhov siab -
Qhov ntsuas kub hauv lub cav thiab lwm qhov ntawm lub tsheb tuaj yeem ncav cuag 150℃lossis siab dua. Nyob rau hauv cov kev kub siab no - ib puag ncig, cov ntaub ntawv uas muaj Tg siab qhov tseem ceeb yog qhov kev xaiv zoo tshaj plaws rau tsheb luam ntawv Circuit Court boards. Ntxiv rau qhov siab TgFR-4 cov ntaub ntawv tau hais ua ntej, cov ntaub ntawv polyimide kuj tau txais txiaj ntsig zoo hauv kev lag luam tsheb vim lawv qhov ua tau zoo tshaj qhov kub thiab txias. Tus nqi Tg ntawm PI cov ntaub ntawv feem ntau yog siab dua 250 degree, thiab qee qhov txawm tias siab dua 300 degree, uas tuaj yeem tswj xyuas lub cev thiab tshuaj lom neeg ruaj khov hauv qhov kub thiab txias.
Lub pcb ua los ntawm PI cov khoom tsis tsuas yog muaj qhov kub thiab txias, tab sis kuj zoo heev tshuaj corrosion kuj thiab tsis tshua muaj dielectric. Tsawg dielectric tsis tu ncua ua rau txo qis teeb liab thiab ceev ceev thaum lub sij hawm kis tau tus mob, uas yog ib qho tseem ceeb rau siab - ceev cov ntaub ntawv kis tau tus mob daim ntawv thov nyob rau hauv tsheb, xws li nyob rau hauv lub tsheb sib txuas lus systems thiab autonomous tsav tsheb sensor cov ntaub ntawv kis tau tus mob. Hauv kev tswj hwm lub roj teeb ntawm lub zog tshiab, vim tias muaj cua sov ntau thaum lub sijhawm them lub roj teeb thiab cov txheej txheem tawm, qhov kub thiab txias, thiab cov kev xav tau siab heev rau cov teeb liab kis tau tus mob thiab ruaj khov ntawm BMS, PI khoom pcb tuaj yeem ua tau raws li cov kev xav tau no, ua kom muaj kev saib xyuas thiab tswj cov roj teeb raws li txoj cai los ntawm kev tswj cov roj teeb, thiab lav lub roj teeb muaj kev nyab xeeb thiab ua haujlwm tau zoo.
3, Hlau substrate: tus yuam sij rau kom muaj cua sov dissipation
Nrog rau kev nce ntxiv hauv lub zog ntawm cov khoom siv hluav taws xob hauv tsheb, cov teeb meem kub ntxhov tau dhau los ua qhov tseem ceeb. Hlau substrates, tshwj xeeb tshaj yog txhuas substrates, yog dav siv nyob rau hauv teb xws li tsheb LED teeb pom kev zoo thiab lub zog hluav taws xob modules vim lawv zoo heev tshav kub dissipation kev ua tau zoo. Aluminium substrate muaj txheej txheej hlau, txheej rwb thaiv tsev, thiab txheej txheej conductive. Lub hauv paus hlau txheej (feem ntau yog txhuas) tuaj yeem ua kom sov sai sai, thaum cov txheej txheej rwb thaiv tsev ua kom muaj hluav taws xob rwb thaiv tsev ntawm Circuit Court thiab hlau substrate. Cov txheej txheem conductive yog siv los nqa lub voj voog.
Nyob rau hauv lub tsheb LED teeb lub taub hau, LED nti tsim ib tug loj npaum li cas ntawm tshav kub thaum lub teeb emission txheej txheem. Yog hais tias nws tsis dissipated nyob rau hauv lub sij hawm, nws yuav ua rau lub kub ntawm LED nti nce, lub luminous efficiency yuav txo, thiab lub neej luv luv. LED pcb ua los ntawm txhuas substrate tuaj yeem ua cov cua sov uas tsim los ntawm LED nti mus rau cov hlau txheej ntawm aluminium substrate, thiab tom qab ntawd dissipate cua sov mus rau ib puag ncig ib puag ncig los ntawm cov cua kub dissipation qauv ntawm lub tsheb headlight, zoo ua haujlwm ruaj khov thiab lub neej ntev ntawm LED headlight. Rau lub zog hluav taws xob hluav taws xob modules hauv tsheb, xws li cov tswj lub cev muaj zog, inverter, thiab lwm yam, cov khoom siv no ua rau lub zog loj poob thaum lub sijhawm ua haujlwm thiab tseem yuav tsum tau ntsuas cov cua sov kom zoo. Aluminium substrate pcb tuaj yeem ua tau raws li nws cov kev xav tau ntawm cov cua sov thiab tseem muaj qee qhov kev siv lub zog los hloov mus rau qhov nyuaj ntawm kev vibration ntawm lub tsheb.
4, Cov khoom siv ntau zaus: ua tau raws li qhov xav tau ntawm kev sib txuas lus siab -
Nrog rau kev txhim kho cov tsheb ntse thiab kev sib txuas, cov kev xav tau rau siab -frequency signal kis tau tus mob hauv tsheb sib txuas lus tau nce siab. Hauv kev siv xws li 5G kev sib txuas lus thiab lub tsheb radar, pcb boards yuav tsum muaj qhov tsis tshua muaj dielectric tsis tu ncua thiab tsis tshua muaj dielectric poob tangent yam ntxwv kom txo qis qis thiab cuam tshuam thaum lub teeb liab kis tau tus mob. Cov ntaub ntawv ntau zaus xws li polytetrafluoroethylene thiab nws cov ntaub ntawv sib xyaw tau dhau los ua qhov kev xaiv zoo tshaj plaws rau cov ntawv thov no.
PTFE cov khoom muaj qhov tsis tshua muaj Dk thiab Df qhov tseem ceeb, ua kom muaj siab - ceev thiab ruaj khov kis tau tus mob siab - zaus cov cim hauv pcb circuits. Hauv millimeter yoj radar systems nrog zaus ntawm 77GHz lossis siab dua hauv tsheb, millimeter yoj radar pom cov ntaub ntawv xws li kev ncua deb, tshaj tawm, thiab lub kaum sab xis ntawm lub hom phiaj cov khoom los ntawm emitting thiab tau txais siab - zaus electromagnetic waves. Nyob rau ntawm lub sijhawm no, cov ntawv luam tawm hauv Circuit Court ua los ntawm PTFE raws siab- cov ntaub ntawv zaus tuaj yeem xa tawm siab - zaus radar teeb liab, ua kom muaj kev daws teeb meem siab thiab tshawb pom qhov tseeb ntawm lub radar system, thiab muab cov ntaub ntawv muaj txiaj ntsig zoo ib puag ncig rau kev tsav tsheb. Nyob rau hauv lub tsheb sib txuas lus sib txuas lus module, siab - cov khoom siv zaus luam tawm Circuit Court boards kuj tseem yuav tsum tau los txhawb siab -kev sib txuas lus ceev thiab ruaj khov wireless, ua tiav cov ntaub ntawv sib pauv tau zoo ntawm tsheb, tsheb thiab infrastructure, thiab tsheb thiab tib neeg.
5, Rigid flex ob leeg phaj khoom: ntsuas qhov yooj thiab ruaj khov
Hauv ib lub tsheb, qee cov khoom yuav tsum tau luam tawm cov ntawv luam tawm kom muaj qee qhov kev hloov pauv hloov mus rau qhov nyuaj spatial layouts thiab dynamic ua hauj lwm ib puag ncig. Lub rigid flex sib koom ua ke board tau tshwm sim, uas ua ke nrog nruj Circuit Court boards thiab hloov tau yooj yim Circuit Court boards los ntawm cov txheej txheem tshwj xeeb, sib txuas cov kev ruaj ntseg ntawm cov laug cam nrog kev hloov pauv ntawm cov boards yooj yim.
Qhov hloov pauv feem ntau yog siv cov yeeb yaj kiab polyester lossis polyimide ua cov substrate, uas muaj qhov yooj yim thiab tuaj yeem khoov tau ntau zaus yam tsis muaj kev cuam tshuam hluav taws xob. Nyob rau hauv kev sib txuas ntawm lub tsheb dashboard, lub rigid flex sib koom phaj tuaj yeem ua tiav kev sib txuas ntawm lub dashboard thiab lwm qhov chaw ntawm lub tsheb lub cev, ua kom cov teeb liab ruaj khov thiab hloov mus rau qhov me me vibrations thiab deformations ntawm lub dashboard thaum tsav tsheb. Nyob rau hauv lub qhov rooj tswj module, lub rigid flex sib koom phaj tuaj yeem khoov nrog qhov qhib thiab kaw ntawm lub qhov rooj, thaum ua kom muaj kev ntseeg siab ntawm kev sib txuas ntawm lub rooj sib txuas thiab zam qhov kev tswj qhov rooj tsis ua haujlwm los ntawm cov kab tawg. Daim ntawv thov ntawm cov ntaub ntawv nruj flex sib koom ua ke muab kev txhawb zog rau kev txhim kho qhov chaw sab hauv ntawm lub tsheb thiab kev teeb tsa cov khoom siv hluav taws xob zoo.