Nkora ku bipimo bya terminal block n'ubufasha kuri J-GUANG, kandi mara igihe kinini nsubiza ibibazo by’imiterere ya PCB bivuye ku bahanga mu by’igishushanyo mbonera bashyiramo icyuma cyacu cya 301-5.0 screw terminal block mu mbaho ​​zikwirakwiza ingufu. Ibibazo ntanga ntabwo ari ibijyanye n’ibipimo bya terminal block ubwabyo - ibyo biri ku rupapuro rw’amakuru. Bijyanye no guhuza ikoranabuhanga: uburyo ibyuma byegeranye bishobora gushyirwa hafi, ingano y’imashini itanga uburyo bwo kwizerwa bwo gushyiramo solder, n’ibibaho ku nzu ya PA66 iyo inyuze mu bwogero bwa solder bwa 260°C mu masegonda 8. Iyi nkuru ikusanya ibisubizo nakuye mu byiciro 12 by’ibizamini by’abakiriya twakoze hagati ya 2023 na 2025.

Ibipimo bya PCB: Icyo urupapuro rw'amakuru rugaragaza ugereranije n'ibikora mu musaruro

301-5.0 ikoresha pitch ya 5.0 mm, ari nabyo bisanzwe kuri uru rwego rwa icyiciro cy'aho ibintu bigarukira. Ingano z'agapira ni umuringa wa 1.0 x 1.2 mm ufite icyuma cy'umuringa gifite uruziga rw'icyuma gifunga. Ingano y'umwobo wa PCB isabwa ni 1.3-1.5 mm urangiye wuzuye - ubugari buhagije kugira ngo agapira kagere hagati mu gihe cyo gusora mu muraba ariko gafite imbaraga zihagije kugira ngo kagere ku muyoboro. Mu igerageza ryacu ry'ubwirinzi bw'agapira mu ngero 500, imyobo ya 1.4 mm yatanze imbaraga zihanitse zo gukurura kuri 35 N nibura 28 N. Imyobo ya 1.6 mm yagabanyije imbaraga zihanitse zo gukurura kuri 29 N kuko icyuho cya capillary cyari kinini cyane ku buryo kidakomeza gusora.

Hari ikintu kimwe kitari ku rupapuro rw'amakuru ariko gifite akamaro mu ikorwa: aho icyuho kiva kuri pin kijya kuri obo gihinduka bitewe n'ubugari bwa PCB. Ku kibaho gisanzwe cya 1.6 mm FR-4, umwobo wa 1.4 mm ufite pin ya 1.2 mm utanga aho icyuho cya 0.2 mm, ibyo bikaba ari byiza cyane. Ku kibaho cya 2.4 mm cyo gukoresha ingufu nyinshi, aho icyuho kimwe kiracyakora ariko igihe cyo kubamo cya wave solder kigomba kwiyongera kuva ku masegonda 3 kugeza ku masegonda 5 kugira ngo umwobo wuzure neza. Dufite urutonde rw'ibipimo bya wave solder by'ubugari bw'ikibaho nsaba kohereza kuri buri mukiriya wa mbere.

Uburyo bwo gusohora ibikoresho bya tekiniki hafi y'aho icyuma gihagarara kuri PCB

Uhereye ku buso bwa PCB kugeza hejuru y'aho igisenge giherereye, uburebure bwa 301-5.0 bungana na mm 10.0. Ingufu yo gufunga isaba ko umuntu ayigeraho uhereye hejuru, kandi umwanya w'ingofero uba uri mu gice cyo hasi cya mm 2.5. Ku bijyanye n'insinga z'intoki, bivuze ko ugomba kuba ufite nibura mm 15 hejuru ya PCB kugira ngo ushyireho screwdriver isanzwe ya mm 3.0 ku nguni ya dogere 15. Ku bijyanye no gukoresha screwdriver mu buryo bwikora, ibisabwa byo kuyikoresha byiyongera kugera kuri mm 20 kugira ngo ijyane n'aho screwdriver ifata.

Hagati y’aho hantu hahurira abantu benshi, ndasaba ko habaho umwanya muto wa mm 2.0 uva ku nkengero z’aho hantu ujya ku gice gikurikira. Aho hantu hari ubugari bwa mm 8.5 kuri buri mwanya, bityo hamwe n’aho hantu hari uburebure bwa mm 5.0, icyuho kiri hagati y’inkuta z’aho hantu ni 8.5 - 5.0 = mm 3.5. Icyo cyuho cya mm 3.5 kirahagije ku bidukikije byinshi, ariko niba ikibaho kinyura mu irangi risanzwe, umunwa w’ikirahure ukunze gusaba umwanya wa mm 5.0. Twagize umukiriya umwe wasanze robo yabo ikora irangi iri ku nkuta z’aho hantu ku buso bwa mm 3.5 - bahinduye inkingi zose zirimo kugira ngo bakore irangi rya mm 10 ku irangi risanzwe hanyuma bashyiramo intoki aho hantu hatandukanye.

Kwizerwa kw'ingingo za Solder: Ibipimo bya Solder bya Wave na Data yo Gukurura

Inzu ya 301-5.0 yakozwe muri PA66 ifite amanota ya UL94 V-0, kandi yagenewe kwihanganira gushongesha imiraba. Imiterere yacu yemewe ya solder y'imiraba: gushyushya 100-120°C mu masegonda 60-90, ubushyuhe bw'umurambararo wa solder ni 255-260°C, igihe cyo kuruhuka ni amasegonda 3-5 ku mbaho ​​za 1.6 mm n'amasegonda 5-7 ku mbaho ​​za 2.4 mm. Twagerageje ingero 500 muri iyi miterere mu 2024 nta miterere y'imiraba yangiritse.

Ikizamini cyo gukurura ingingo zo gusoda ni bwo buryo bwa QC dutanga kugira ngo twemeze umurongo w'umusaruro. Dukoresha igipimo cy'imbaraga gifite icyuma gikurura gihagaze ku gice cy'inyuma nyuma yo gusoda. Amakuru yacu yavuye mu ngero 500: imbaraga zo gukurura impuzandengo 35 N, nibura 28 N, guhindagurika gusanzwe 3.2 N. Ku musaruro, ndasaba intego ya Cpk ya 1.33 ifite umupaka uri hasi wa 25 N - bivuze ko nta gice kirenze kimwe cya solder muri 4.000 kigomba kunanirwa munsi ya 25 N imbaraga zo gukurura. Ikintu cy'ingenzi gituma imbaraga zo gukurura zuzura munsi ya 25 N ni ingano idahagije y'ingano ya solder, twasanze ari impamvu ebyiri z'ingenzi: umurambararo w'umwobo wa PCB urenga mm 1.55, n'igipimo cyo gukoresha wave solder flux kigabanuka munsi ya mL 0.3 kuri buri kibaho bitewe n'iminwa ya spray yazibye.

Imicungire y'ubushyuhe: Ubushobozi bw'ubushyuhe buriho ku bushyuhe buri hejuru

Umuvuduko wa 16A wa 301-5.0 uri kuri 25°C aho inkingi zose zishyizwe icyarimwe. Guhindagurika kw'umuvuduko bitangirira kuri 40°C aho: twapimye igabanuka rya 4% mu bushobozi bw'umuvuduko uhoraho kuri 10°C hejuru ya 40°C binyuze mu isuzuma ry'ubushyuhe bw'imbere mu nzu. Kuri 70°C aho ikirere giherereye, ingano y'umuvuduko uhoraho igabanuka ikagera kuri 14.0A. Ikintu kidashoboka si icyuma cy'umuringa cyangwa icyuma gifunga uruziga - ni ubushyuhe buturuka ku muyoboro w'insinga, ufite ubushobozi bwo guhangana bwa 2.0-3.5 mOhm kuri buri inkingi mu igerageza ryacu ryo gukora. Kuri 16A, buri inkingi ishira hafi 0.45 W. Mu gice cy'inkingi 12 cyuzuye kuri 16A kuri buri mpande, gukwirakwira k'ubushyuhe ni 5.4 W mu gace ka 60 x 10 mm kuri PCB. Hatabayeho gucika k'ubushyuhe buhagije bw'umuringa, ubushyuhe bwa PCB munsi y'igice cy'inyuma bushobora kuzamukaho 25-35°C hejuru y'ikirere.

Igisubizo kirasobanutse neza: Huza uduce tw'umwobo wo kunyuramo nibura mm² 50 z'ubuso bw'umuringa kuri buri giti kuri PCB, hakoreshejwe µm 35 cyangwa umuringa uremereye. Ibyuma by'inkingi 12 bifite buri giti gifatanye n'umuringa wa mm² 50 bigaragaza izamuka ry'ubushyuhe bwa PCB rya 12°C gusa kuri 16A umutwaro uhoraho, ugereranije na 30°C nta muyoboro w'umuringa uhujwe.

Isuzuma rya High-Pot Nyuma yo Guteranya: Icyo Isuzuma rya AC 2000V Risobanura mu Musaruro

301-5.0 yagenwe hamwe n'umuvuduko uhoraho wa AC 2000V ku munota hagati y'inkingi zegeranye. Iki ni ikintu cyo gupima ku gice cyo hejuru gusa, ntabwo ari kuri PCB yateranijwe. Iyo igice cyo hejuru gishyizwe ku kibaho, ikizamini cy'inkwi nyinshi kigomba kubara ibikoresho bya PCB (FR-4 ikunze gufata 40 kV/mm, bityo 1.6 mm itanga imbaraga za dielectric za 64 kV), imiterere y'inkwi z'inkwi, n'ibisigazwa by'inkwi nyinshi ku buso bw'ikibaho. Mu bunararibonye bwacu, kunanirwa mu gukora ikizamini cy'inkwi nyinshi kuri 1,500V AC hafi ya byose biterwa n'ibisigazwa by'inkwi biri hagati y'ingingo zegeranye z'inkwi, ntabwo ari icyuma cyo hejuru ubwacyo. Turasaba kugaragaza uruziga rudasukuye rufite ubushobozi bwo kwirinda ubushyuhe bwa 10¹¹ Ohm kuri 85°C na 85% by'ubushuhe kuri IPC J-STD-001, kandi bigasaba isuzuma ry'ubuso bw'inkwi nyinshi mbere yo gupima inkwi nyinshi.

Ku bijyanye n'ibikoresho bisaba ubushyuhe buhamye — nk'amashanyarazi akoreshwa mu buvuzi nk'uko biteganywa na IEC 60601 — pin pitch ya 5.0 mm itanga intera ya mm 4.0 hagati y'inkingi zegeranye (pin pinch ku mpande z'inkoni ku gice cyo gusoda). Ibi birahagije kuri voltage ya 250V ikora ifite dogere ya 2 y'ihumana kuri IEC 60947-7-4. Kuri voltage ya 300V ikora, pin pitch ikenewe ni mm 5.0, bivuze ko izindi pin zose zigomba gusigara zitarimo abantu kugira ngo zigere kuri pitch ya mm 10.0.

Igenzura ry'umusaruro n'ibizamini bya QC dukora kuri buri cyiciro

Buri gice cy’umusaruro cy’ibice 301-5.0 kinyura mu bizamini bine bya QC bya ngombwa mu kigo cyacu mbere yo koherezwa. Icya mbere ni ikizamini cya torque: dushyira 0.4 Nm ku ruzingo rwo gufunga dukoresheje screwdriver ya torque isanzwe kandi tukareba ko screw izenguruka neza muri dogere 360 ​​nta gufatana. Icya kabiri ni ikizamini cyo gukurura insinga: dufata insinga ya 14 AWG kuri 0.4 Nm hanyuma tugakurura kuri 50 N mu masegonda 10 - insinga ntigomba kugenda. Icya gatatu ni ikizamini cy’umunyu ku bipimo 5 kuri buri bice 10.000 - amasaha 48 muri 5% NaCl kuri 35°C kuri IEC 60068-2-11, nta kwangirika kugaragara ku ruzingo rw’umuringa cyangwa ku ruzingo rutwikiriwe n’icyuma. Icya kane ni igenzura ry’ibipimo hakurikijwe IEC 60947-7-4 kugira ngo harebwe intera y’udupira, ubugari bw’aho umuntu atuye, n’uburebure hakoreshejwe sisitemu yo gupima icyerekezo ifite ubuziranenge bwa ± 0.01 mm.

Mu 2024, twagerageje ibyiciro 47 by'umusaruro binyuze muri iyi protocole maze twanga ibyiciro 3: kimwe cyagenewe isuzuma rya torque idasubirwamo kuri sitasiyo imwe y'iteraniro yikora, ikindi cyagenewe ibyiciro bya PA66 bigaragaza ubushuhe bwerekana ko amazi yakwinjira mu gihe cyo kubika, n'ikindi cyagenewe ihindagurika ry'uburebure bw'agapira gaterwa n'agapira kamaze gusaza. Ibibazo byose uko ari bitatu byakosowe mbere y'ibyiciro bikurikira by'umusaruro.

Gupima Torque n'amakuru yizewe ku bijyanye no guhuza

Urushundura rwo gufunga kuri 301-5.0 ni icyuma cya M2.6 gifite irangi rya zinc. Mu igerageza ryacu rya torque, dukoresha 0.4 Nm kandi tukareba ibintu bitatu: urushundura ruzunguruka neza muri dogere 360 ​​rudafatana, umuvuduko wo gufunga ugera nibura kuri 20 N ku nsinga, kandi umutwe wa screw ntukuraho. Amakuru yacu yo mu 2024 yavuye mu byiciro 47 yagaragaje torque y'imikorere ya 0.38 Nm hamwe n'impinduka zisanzwe za 0.03 Nm. Nta ngero zananiwe ku rugero ntarengwa rwa 0.4 Nm.

Ku bicuruzwa bisubirwamo birenga ibice 5.000 ku kwezi, dukora cycling y'ubushyuhe ku bipimo 10 buri kwezi: 500 kuva kuri -40°C kugeza +110°C. Inzu ya PA66 ifite CTE ya 80 x 10⁻⁶ /°C ugereranyije na 17 x 10⁻⁶ /°C ku gipini cy'umuringa. Kwaguka kw'itandukaniro kuri -40°C bituma habaho icyuho cya 0.02 mm mu rwego rwo kwihanganira igishushanyo cya 0.05 mm. Amahame mpuzamahanga y'umutekano wa electrotechnical akurikizwa na IECImpinduka y’ingufu zo gufunga nyuma y’amasaha 500 yari 6.2% mu makuru yacu yo mu 2024.

Reba ibyacu uruhererekane rwuzuye rw'ibice bya nyuma na umwirondoro w'ikigoAmahame y'umutekano akurikizwa na IEC.

Amakuru yerekeye uburyo bwo gupima ubushyuhe n'ubwikorezi bw'amashanyarazi

Ubudahangarwa bw'icyuma gikingira 301-5.0 hagati y'inkingi zegeranye bupimwe kuri DC 500V kuri IEC 60512-3-1. Mu igeragezwa ryacu ryo mu 2024 ryakozwe n'ibipimo 1.200 mu byiciro 12, ubudahangarwa bw'icyuma gikingira icyuma bwanditswe ni 5.200 MOhm, hamwe n'impuzandengo ya batch ya 8.700 MOhm. Amakuru y'ibikoresho bya PA66 agaragaza ubudahangarwa bw'ingano ya 10¹⁵ Ohm·cm kuri 23°C na 50% RH, ariko ubudahangarwa bw'icyuma gikingira icyuma mu gice cy'icyuma cyateranijwe bugabanuka bitewe n'ubwandu bw'ubuso buva mu buryo bwo gukora. Twasanze urumuri rwo gushushanya - uduce duto twa PA66 ku murongo wo gutandukanya ibumba - rushobora kugabanya intera yo gucika hagati y'inkingi zegeranye kuva ku gaciro k'igishushanyo cya mm 4.0 kugeza kuri mm 3.2 mu gihe kibi cyane. Twashyize mu bikorwa gahunda yo kubungabunga ibumba itunganya umurongo ugabanya ibara buri nshuro 50.000, yagabanyije uburebure bwa flash kuva kuri mm 0.08 ikagera munsi ya mm 0.02.

Ikizamini cy’amashanyarazi ahangana n’amashanyarazi kuri AC 2000V ku munota kuri IEC 60947-7-4 nta gisaba kuvunika cyangwa gushyuha. Mu igerageza ryacu, ingufu zigabanuka hagati y’inkingi zegeranye muri 301-5.0 ubusanzwe ni AC 3,800-4,200V, bitanga umutekano urenze inshuro ebyiri z’amashanyarazi ahangana n’amashanyarazi. Ikintu kidashoboka si urugo rwa PA66 - rufite imbaraga za dielectric za 25 kV/mm - ahubwo ni inzira yo gucikamo ibice bibiri by’umuringa ku rwego rwa PCB, aho fillet y’icyuma igabanya intera ifatika.

Reba uruhererekane rwuzuye rw'ibice bya nyuma na ibyemezoAmahame ngenderwaho IEC.

Guhuza Gushongesha na PCB ikora mu buryo bwikora

Iyi terminal block ya 301-5.0 yagenewe gushongesha imiyoboro ariko kandi ijyanye no gushongesha imiyoboro n'intoki. Ku gushongesha imiyoboro ku mbaho ​​za 1.6 mm FR-4, ibipimo twagusaba ni ibi bikurikira: gushyushya 100-120°C mu masegonda 60-90, ubushyuhe bwa solder 255-260°C, igihe cyo gushongesha imiyoboro ni amasegonda 3-5. Ku gushongesha imiyoboro hakoreshejwe umunwa umwe, igihe cyo gushongesha imiyoboro cyiyongera kugeza ku masegonda 6-8 kuri buri pin kugira ngo habeho kuzuza neza solder. Inzu ya PA66 ishobora kwihanganira 260°C mu masegonda 10 igihe cyose cyo gushongesha imiyoboro, ibi bikaba bihagije ku buryo bwose busanzwe bwo gushongesha imiyoboro. Ku gushongesha imiyoboro n'intoki, koresha icyuma cya 350-380°C gifite umutwe wa 2.0 mm, gabanya igihe cyo gukonja kugeza ku masegonda 3 kuri buri pin, kandi ureke amasegonda 10 akonje hagati y'imiyoboro kugira ngo wirinde ko ubushyuhe bwiyongera mu gikoresho. Ku bikoresho byinshi birenga units 10.000 ku mwaka, turasaba gupakira kaseti n'uruziga kuri block ya 301-5.0 terminal, yemerera gushyirwa kuri PCB mbere yo gusora mu muyoboro w'amazi. Imiterere yacu ya kaseti n'uruziga ifata ibice 500 kuri buri muyoboro w'amazi hamwe na mm 12.7 hagati y'udukingirizo. Imashini ishyiramo ifata buri gice kiri iruhande rw'umubiri w'inzu ikoresheje umunwa w'amazi, ikawushyira kuri PCB, kandi imbaraga zo kubika udukingirizo mu muyoboro w'amazi zifata block mu mwanya wayo mu gihe cyo kuyijyana kuri sitasiyo yo gusora mu muyoboro w'amazi. Imbaraga zo gusora no gushyira mu mwanya ni 5-8 N, zihagije kugira ngo zisunike udukingirizo mu muyoboro w'amazi utarinze kuzigonda.

Guhitamo ibikoresho no kubahiriza isuzuma ry’uko byaka

Inzu ya 301-5.0 yakozwe muri PA66 (nylon 66) ifite igipimo cya UL94 V-0 cyo gutwika kiri ku bugari bwa mm 0.8. Igipimo cya V-0 gisaba ko buri gipimo kizimya mu masegonda 10 nyuma yo gukuraho icyuma gitwika, nta mashanyarazi yemerewe gutwika. Mu igerageza ryacu ry'imbere ry'ibipimo 100 bivuye mu bice 10 byakozwe, igihe cyo kuzimya cyari amasegonda 3.2 ntarengwa amasegonda 7. Ibikoresho bya PA66 bitanga kandi igipimo cyo gukurikirana (CTI) cya 600V kuri IEC 60112, bivuze ko ubuso bw'inzu bushobora kwihanganira voltage yo gukurikirana ya 600V hatabayeho inzira ya karuboni itwara amazi. Igipimo cya CTI ni ingenzi mu gukoresha amashanyarazi mu bipimo biri ahantu hari ubushuhe bwinshi aho ubushyuhe bw'ubuso bushobora gutuma inzira y'amazi iva hagati y'inkingi zegeranye. Impamyabushobozi yacu y'ibikoresho bya PA66 irimo isuzuma rya CTI ku bipimo bitatu kuri buri cyiciro, hamwe n'umupaka ntarengwa wa 575V. Mu 2024, itsinda rimwe ryananiwe kuri 560V maze risubizwa uwaritangaga.

Ibyuma bya 301-5.0 bihari mu buryo bw'inkingi 2 kugeza kuri 12 kuri buri byuma. Buri byuma bigumana amashanyarazi angana na 16A 300V hatitawe ku mubare w'inkingi zose. Ibyuma bya mpande nyinshi bishobora gushyirwa iruhande kuri PCB kugira ngo habeho uburyo bwinshi bwo guhuza inkingi, kandi uburebure bwa 5.0 mm butuma habaho guhuza n'imirongo isanzwe ya PCB. Ku bubasha bwo gukwirakwiza amashanyarazi busaba inkingi zirenga 12, turasaba gukoresha inkingi nyinshi zifite umwanya wa 2.0 mm hagati y'aho inkingi zegeranye ziherereye.

Ibibazo Bikunze Kubazwa