Zininzi iisistim ezisebenzisa izibini ezijijekileyo kwiimoto, ezifana ne-electronic injection systems, audio and video entertainment systems, airbag systems, CAN networks, njl.njl. Izibini ezijijekileyo zohlulwe zibe ngazibini ezijijekileyo ezikhuselweyo kunye neeperi ezijijekileyo ezingakhuselekanga.Intambo ephothiweyo ekhuselweyo inomaleko wentsimbi okhuselayo phakathi kwentambo ephothiweyo kunye nemvulophu yangaphandle ekhuselayo.Umaleko okhuselayo unokunciphisa imitha, uthintele ukuvuza kolwazi, kwaye uthintele uphazamiseko lwangaphandle lombane.Ukusetyenziswa kweeperi ezijijekileyo ezikhuselekileyo zinezinga eliphezulu losulelo kunezibini ezijijekileyo ezifanayo.
Iingcingo ezijijekileyo ezikhuselweyo, iintambo zocingo zisetyenziswa ngokuthe ngqo ngeengcingo ezigqityiweyo ezikhuselweyo.Kwizibini ezijijekileyo ezingakhuselekanga, abavelisi abanobuchule bokucubungula ngokubanzi basebenzisa umatshini wokujija ukujija.Ngethuba lokucubungula okanye ukusetyenziswa kweengcingo eziphothiweyo, iiparitha ezimbini ezibalulekileyo ezifuna ingqalelo ekhethekileyo ngumgama ojikelezayo kunye nomgama ongaguqukiyo.
|jija isandi
Ubude obujijekileyo besibini esijijekileyo bubhekiselele kumgama ophakathi kwamaza amaza amabini akufutshane okanye imikhombe kwikhondaktha enye (inokubonwa njengomgama phakathi kwamalungu amabini ajijekileyo kwicala elinye).Jonga umzobo 1. Ubude be-twist = S1 = S2 = S3.
umfanekiso we-1 pitch yeengcingo ezixineneyo
Ubude bokulala buchaphazela ngokuthe ngqo amandla okuhambisa umqondiso.Ubude obuhlukeneyo bokulala bunamandla ahlukeneyo okuchasana nokuphazamiseka kwiimpawu zobude obuhlukeneyo.Nangona kunjalo, ngaphandle kwebhasi ye-CAN, imigangatho efanelekileyo yamazwe ngamazwe neyasekhaya ayicacisi ngokucacileyo ubude be-twist yeeperi ezijijekileyo.I-GB/T 36048 Passenger Car CAN Bus Physical Layer Technical Requirements ichaza ukuba i-CAN wire lay range ubude yi-25±5mm (33-50 twists / meter), ehambelana neemfuno ze-CAN zokubeka ubude kwi-SAE J2284 250kbps ngesantya esiphezulu. I-CAN yezithuthi.efanayo.
Ngokubanzi, inkampani nganye yemoto inemigangatho yayo yokumisela umgama ojijekileyo, okanye ilandela iimfuno zenkqubo engaphantsi nganye kumgama ojijekileyo weengcingo ezijijekileyo.Ngokomzekelo, i-Foton Motor isebenzisa ubude be-winch ye-15-20mm;ezinye ze-OEM zaseYurophu zincoma ukukhetha ubude be-winch ngokwale migangatho ilandelayo:
1. I-CAN ibhasi 20±2mm
2. Intambo yesignali, intambo yomsindo 25±3mm
3. Umgca wokuqhuba 40±4mm
Ngokubanzi, okukhona kuncinci ukujijwa kwepitshi, kokukhona kuphucuka amandla okuchasa ukungenelela kommandla wemagnethi, kodwa ububanzi bocingo kunye noluhlu lokugoba lwemathiriyeli ye-sheath yangaphandle kufuneka kuqwalaselwe, kwaye owona mgama ufanelekileyo wokujija kufuneka umiselwe. ngokusekwe kumgama wothumelo kunye nobude bomqondiso.Xa izibini ezininzi ezijijekileyo zibekwe kunye, kungcono ukusebenzisa izibini ezijijekileyo ezinobude obuhlukeneyo bemigca yeempawu ezahlukeneyo zokunciphisa ukuphazamiseka okubangelwa ukuthotywa kwe-mutual inductance.Umonakalo kwi-insulation yocingo obangelwa kukuqina kakhulu ubude be-twist unokubonwa kulo mfanekiso ungezantsi:
Umfanekiso we-2 Ukuguqulwa kocingo okanye ukuqhekeka okubangelwa ngumgama oqina kakhulu wokujika
Ukongeza, ubude be-twist yezibini ezijijekileyo kufuneka zigcinwe ngokulinganayo.Impazamo yepitch ejijekileyo yesibini esijijekileyo iya kuchaphazela ngokuthe ngqo inqanaba layo lokuchasana nokuphazamiseka, kwaye ukungahleleki kwempazamo ye-twisting pitch kuya kubangela ukungaqiniseki kwingqikelelo ye-twisted pair crosstalk.Iiparamitha zezixhobo zokuvelisa izibini eziphothiweyo Isantya se-angular shaft ejikelezayo yinto ephambili echaphazela ubungakanani be-inductive coupling yesibini esijijekileyo.Kufuneka kuthathelwe ingqalelo ngexesha lenkqubo yokuvelisa isibini esijijekileyo ukuze kuqinisekiswe amandla okuchasana nokuphazamiseka kwesibini esijijekileyo.
|Umgama ongajikiyo
Umgama ongaguquguqukiyo ubhekisa kubungakanani benxalenye ejijekileyo yee-conductor ezimbini ezijijekileyo ekufuneka zihlulwe xa zifakwe kwi-sheath.Jonga uMfanekiso 3.
Umfanekiso 3 Umgama ongajikiyo L
Umgama ongajingiyo awuchazwanga kwimigangatho yamazwe ngamazwe.Umgangatho woshishino wasekhaya we-QC/T29106-2014 "Iimeko zobuGcisa kwiiNtambo zokuHambisa iiNcingo zeMoto" ichaza ukuba umgama ongaguqukiyo awufanele ube mkhulu kune-80mm.Jonga umzobo 4. Umgangatho waseMelika we-SAE 1939 umisela ukuba iperi ejijekileyo yemigca ye-CAN akufanele idlule kwi-50mm ngobukhulu obungajijwanga.Ke ngoko, imimiselo yemigangatho yoshishino lwasekhaya ayisebenzi kwimigca ye-CAN kuba inkulu ngobukhulu.Okwangoku, iinkampani ezahlukeneyo zeemoto okanye abavelisi beentambo zokubopha banciphisa umgama ongaguqukiyo wemigca ye-CAN enesantya esiphezulu ukuya kwi-50mm okanye i-40mm ukuqinisekisa ukuzinza komqondiso we-CAN.Umzekelo, ibhasi ye-CAN yaseDelphi ifuna umgama ongajingiyo ongaphantsi kwe-40mm.
Umzobo 4 Umgama ongaguqukiyo ochazwe kwi-QC/T 29106
Ukongezelela, ngexesha lenkqubo yokucubungula i-wire harness, ukwenzela ukuthintela iingcingo eziphothiweyo ukuba zikhulule kwaye zibangele umgama omkhulu ongaguqukiyo, iindawo ezingabonakaliyo zeentambo eziphothiweyo kufuneka zifakwe ngeglue.Umgangatho waseMelika we-SAE 1939 umisela ukuba ukuze kugcinwe imeko ejijekileyo yee-conductor, i-tubing enciphayo yobushushu kufuneka ifakwe kwindawo engasonwanga.Umgangatho woshishino lwasekhaya QC/T 29106 umisela ukusetyenziswa kwetape encapsulation.
|Ukuqukumbela
Njengomthwali wokuhambisa umqondiso, iintambo ezimbini ezijijekileyo kufuneka ziqinisekise ukuchaneka kunye nokuzinza kokuhanjiswa kwesignali, kwaye kufuneka zibe nobuchule obuhle bokuchasana nokuphazamiseka.I-twist pitch size, i-twist pitch uniform kunye nomgama ongaguqukiyo wocingo olujijekileyo kunempembelelo ebalulekileyo kwisakhono saso sokuchasana nokuphazamiseka, ngoko ke kufuneka kunikwe ingqalelo ngexesha loyilo kunye nenkqubo yokucubungula.
Ixesha lokuposa: Mar-19-2024