Muaj ntau lub tshuab uas siv cov twisted khub hauv tsheb, xws li tshuab hluav taws xob txhaj tshuaj, suab thiab video lom ze systems, airbag systems, CAN tes hauj lwm, thiab lwm yam. Cov khub twisted tau muab faib ua cov sib tw twisted thiab unshielded twisted khub.Lub shielded twisted khub cable muaj ib tug hlau shielding txheej ntawm cov twisted khub cable thiab cov txheej insulating hnab ntawv.Cov txheej thaiv tiv thaiv tuaj yeem txo cov hluav taws xob, tiv thaiv cov ntaub ntawv tawm, thiab tseem tiv thaiv kev cuam tshuam sab nraud ntawm electromagnetic.Kev siv cov ntaub thaiv npog twisted muaj qhov sib kis tau zoo dua li cov khub uas tsis muaj kev tiv thaiv zoo sib xws.
Shielded twisted khub xov hlau, hlau harnesses feem ntau yog siv ncaj qha nrog cov ntaub thaiv npog tiav.Rau unshielded twisted khub, manufacturers uas muaj peev xwm ua feem ntau siv ib tug twisting tshuab rau twisting.Thaum lub sijhawm ua haujlwm lossis siv cov xov hlau sib tw, ob qhov tseem ceeb uas xav tau kev saib xyuas tshwj xeeb yog qhov sib txawv thiab qhov tsis sib xws.
|twist suab
Qhov sib tw ntev ntawm ib khub twisted yog hais txog qhov kev ncua deb ntawm ob sab yoj yoj crests los yog troughs ntawm tib tus neeg xyuas pib (nws tuaj yeem pom tau tias qhov kev ncua deb ntawm ob lub pob qij txha hauv tib txoj kev).Saib daim duab 1. Qhov twist ntev = S1 = S2 = S3.
daim duab 1 pitch ntawm stranded wireS
Qhov ntev nteg ncaj qha cuam tshuam rau lub teeb liab kis tau tus mob.Qhov sib txawv nteg ntev muaj qhov sib txawv los tiv thaiv kev cuam tshuam rau cov teeb liab ntawm qhov sib txawv wavelengths.Txawm li cas los xij, tshwj tsis yog lub tsheb npav CAN, cov qauv thoob ntiaj teb thiab cov qauv hauv tsev tsis qhia meej txog qhov ntev ntawm qhov sib tw twisted.Lub GB / T 36048 Neeg nrog caij Tsheb CAN Tsheb Npav Lub Cev Txheej Txheem Cov Lus Cog Tseg tau teev tseg tias CAN hlau nteg ntev yog 25 ± 5mm (33-50 twists / meter), uas yog raws li CAN nteg ntev yuav tsum tau nyob rau hauv SAE J2284 250kbps high-speed CAN rau tsheb.ib yam.
Feem ntau, txhua lub tuam txhab tsheb muaj nws tus kheej twisting nrug kev teeb tsa cov qauv, los yog ua raws li cov kev cai ntawm txhua lub subsystem rau twisting nrug ntawm twisted nyob ntawm tej.Piv txwv li, Foton Motor siv lub winch ntev ntawm 15-20mm;Qee cov European OEMs pom zoo xaiv lub winch ntev raws li cov qauv hauv qab no:
1. CAN tsheb npav 20 ± 2mm
2. Teeb liab cable, suab cable 25 ± 3mm
3. Tsav kab 40 ± 4mm
Feem ntau hais lus, qhov me me ntawm qhov sib tw twist, qhov zoo dua qhov muaj peev xwm tiv thaiv kev cuam tshuam ntawm cov hlau nplaum, tab sis txoj kab uas hla ntawm cov xaim thiab qhov khoov ntau ntawm cov khoom siv sab nraud yuav tsum tau txiav txim siab, thiab qhov kev sib tw uas tsim nyog tshaj plaws yuav tsum tau txiav txim siab. raws li qhov kis tau tus mob nyob deb thiab lub teeb liab wavelength.Thaum muaj ntau qhov sib tw twisted ua ke, nws yog qhov zoo tshaj plaws los siv cov twisted khub nrog qhov sib txawv nteg ntev rau cov kab teeb liab sib txawv kom txo tau kev cuam tshuam los ntawm kev sib nrig sib inductance.Kev puas tsuaj rau cov hlau rwb thaiv tsev uas tshwm sim los ntawm nruj heev qhov ntev twist tuaj yeem pom hauv daim duab hauv qab no:
Daim duab 2 Hlau deformation los yog cracking tshwm sim los ntawm nruj heev twisting nrug
Tsis tas li ntawd, qhov twist ntev ntawm twisted khub yuav tsum tau khaws cia txawm tias.Qhov kev sib tw twisting yuam kev ntawm ib khub twisted yuav cuam tshuam ncaj qha rau nws qhov kev cuam tshuam kev cuam tshuam, thiab qhov tsis sib xws ntawm qhov sib tw twisting qhov yuam kev yuav ua rau tsis meej pem hauv kev kwv yees ntawm twisted khub crosstalk.Twisted khub ntau lawm cov cuab yeej tsis Cov angular ceev ntawm lub rotating ncej yog qhov tseem ceeb cuam tshuam rau qhov loj ntawm inductive coupling ntawm twisted khub.Nws yuav tsum tau txiav txim siab thaum lub sij hawm sib tw ua ke cov txheej txheem tsim kom ntseeg tau tias muaj peev xwm tiv thaiv kev cuam tshuam ntawm tus khub twisted.
|Untwisting nrug
Qhov untwisting nrug yog hais txog qhov loj ntawm qhov untwisted ib feem ntawm twisted khub kawg conductors uas yuav tsum tau muab cais thaum ntsia rau hauv lub sheath.Saib daim duab 3.
Daim duab 3 Untwisting nrug L
Qhov untwisting nrug tsis tau teev nyob rau hauv cov qauv thoob ntiaj teb.Tus qauv kev lag luam hauv tsev QC / T29106-2014 "Technical Conditions for Automotive Wire Harnesses" qhia tias qhov kev ncua deb yuav tsum tsis txhob ntau tshaj 80mm.Saib daim duab 4. Tus qauv American SAE 1939 qhia tias cov kab sib tw ntawm CAN yuav tsum tsis pub tshaj 50mm hauv qhov loj me.Yog li ntawd, cov txheej txheem kev lag luam hauv tsev tsis siv rau CAN kab vim tias lawv loj dua.Tam sim no, ntau lub tuam txhab tsheb lossis cov tuam txhab xaim hluav taws xob txwv qhov kev ncua deb ntawm kev kub ceev CAN kab rau 50mm lossis 40mm los xyuas kom meej qhov ruaj khov ntawm CAN teeb liab.Piv txwv li, Delphi's CAN tsheb npav yuav tsum muaj qhov kev ncua deb ntawm tsawg dua 40mm.
Daim duab 4 Untwisting nrug tau teev tseg hauv QC/T 29106
Tsis tas li ntawd, thaum lub sij hawm ua cov txheej txheem xaim hlua, txhawm rau tiv thaiv cov xov hlau sib tw los ntawm kev xoob thiab ua rau qhov loj dua qhov tsis sib xws, qhov chaw tsis sib xws ntawm cov xov hlau sib tw yuav tsum tau them nrog cov kua nplaum.Tus qauv Asmeskas SAE 1939 tau teev tseg tias txhawm rau txhawm rau tswj lub xeev twisted ntawm cov khoom siv hluav taws xob, cov cua sov shrink tubing yuav tsum tau muab tso rau ntawm qhov chaw tsis muaj kev sib tw.Kev lag luam hauv tsev tus qauv QC / T 29106 qhia txog kev siv daim kab xev encapsulation.
|Xaus
Raws li lub teeb liab kis tau tus mob, twisted khub cables yuav tsum tau xyuas kom meej qhov tseeb thiab ruaj khov ntawm cov teeb liab kis tau tus mob, thiab lawv yuav tsum muaj peev xwm tiv thaiv kev cuam tshuam zoo.Lub twist pitch loj, twist pitch uniformity thiab untwisting nrug ntawm twisted hlau muaj ib qho tseem ceeb cuam tshuam rau nws anti-interference muaj peev xwm, yog li nws yuav tsum tau them sai sai rau thaum lub sij hawm tsim thiab ua cov txheej txheem.
Post lub sij hawm: Mar-19-2024