Ndinoshanda pane terminal block specification uye rutsigiro pa J-GUANG, uye ndinopedza nguva yangu yakawanda ndichipindura mibvunzo yePCB kubva kumainjiniya ekugadzira vachibatanidza block yedu ye301-5.0 screw terminal mumabhodhi emagetsi ekuparadzira. Mibvunzo yandinobvunza haisi yezve terminal block specifications pachayo - iyo iri padatasheet. Inotaura nezvekubatanidzwa kwemechanical: mablock ari pedyo anogona kuiswa padyo sei, saizi yekuboorera inopa kuvimbika kwakanyanya kwe solder joint, uye chii chinoitika kune PA66 housing kana ikapinda mu 260°C wave solder bath kwemasekondi masere. Chinyorwa chino chinounganidza mhinduro dzandakawana kubva mumabhechi gumi nemaviri ekuyedza kwevatengi kwatakaita pakati pa2023 na2025.

Zviyero zvePCB Footprint: Zvinoratidzwa neDatasheet Zvichienzaniswa neZvinoshanda muKugadzira

Iyo 301-5.0 inoshandisa pitch ye5.0 mm, inova ndiyo yakajairika yekirasi iyi ye bhuroko rekupedzisira. Zviyero zvepini 1.0 x 1.2 mm rectangular brass ine tin plating. Hukuru hwegomba rePCB hunokurudzirwa i1.3-1.5 mm finish dayamita — yakafara zvakakwana kuti pini ikwanise kuzviparadzanisa panguva yekusvira mafungu asi yakasimba zvakakwana kuti ive nechokwadi chekuti capillary action inodhonza solder nepaburi. Mukuyedza kwedu kuvimbika kwejoin yesolder mu500 samples, maburi pa1.4 mm akaburitsa avhareji yepamusoro yekudhonza simba pa35 N neasingasviki 28 N. Maburi pa1.6 mm akaderedza avhareji yekudhonza simba kusvika pa29 N nekuti capillary gap yakanga yakafara zvakanyanya kuti isazadzwe nesolder nguva dzose.

Chimwe chinhu chisiri mupepa redata asi chakakosha mukugadzirwa: kuburitswa kwepini kubva pagomba kuenda kugomba kunochinja nehukobvu hwePCB. Pabhodhi reFR-4 re1.6 mm, gomba re1.4 mm rine pini re1.2 mm rinopa kuburitswa kwedhayamita re0.2 mm, izvo zvakanaka. Pabhodhi re2.4 mm rekushandisa magetsi ane simba, kuburitswa kwakafanana kuchiri kushanda asi nguva yekugara kwewave solder inofanira kuwedzera kubva pamasekonzi matatu kusvika kumasekonzi mashanu kuti ive nechokwadi chekuti maburi azara zvizere. Tine seti yematanho anokurudzirwa ewave solder nehukobvu hwebhodhi andinotumira kune wese mutengi wekutanga.

Kubviswa kweMichina Kutenderedza Chivharo cheTerminal paPCB

Iyo 301-5.0 ine urefu hwe10.0 mm kubva pamusoro pePCB kusvika pamusoro peimba. Skuruu yekubatisa inoda kuti sikuruu isvike kubva kumusoro, uye nzvimbo yekuvharira screw yakavharirwa mukati me 2.5 mm muhombe. Kana uri kushandisa waya nemaoko, izvi zvinoreva kuti unofanira kudzima screwdriver ye 3.0 mm pamusoro pePCB kuti ikwane screwdriver ye 3.0 mm flat-blade angle ine 15-degree. Kana uri kushandisa screwdriver otomatiki, zvinodiwa kuti screwdriver ikwanise kushanda, zvinosvika 20 mm kuti ikwane screwdriver bit holder.

Pakati pemabhuroko eparutivi, ndinokurudzira kuti nzvimbo yacho ive nehupamhi hwe 2.0 mm kubva pamucheto weimba kuenda kune chimwe chikamu chinotevera. Imba yacho ine upamhi hwe 8.5 mm padanda rega rega, saka ne 5.0 mm pitch, mukana uri pakati pemadziro eimba ari pedyo i 8.5 - 5.0 = 3.5 mm. Mukana iwoyo we 3.5 mm wakakwana munzvimbo zhinji dzekugadzira, asi kana bhodhi rikapinda nepakati pe conformal coating, coating applicator nozzle inowanzoda 5.0 mm clearance. Taiva nemutengi mumwe chete akaona kuti robhoti ravo rekusarudza coating rairova madziro eimba pa 3.5 mm spacing - vakachinja kuenda kune imwe neimwe pole yakazara kuti vagadzire 10 mm pitch pa coating pass uye vakazoisa nzvimbo dzakasvetwa nemaoko.

Kuvimbika kweSolder Joint: MaWave Solder Parameters uye Dhata reKudhonza-Test

Imba ye301-5.0 yakagadzirwa kubva kuPA66 ine chiyero cheUL94 V-0, uye yakagadzirirwa kutsungirira kusungirirwa kwemafungu. Profayiro yedu yekusungirirwa kwemafungu yakatenderwa: kupisa 100-120°C kwemasekonzi 60-90, tembiricha yepamusoro yekusungirirwa 255-260°C, nguva yekugara masekondi 3-5 kumabhodhi e1.6 mm uye masekondi 5-7 kumabhodhi e2.4 mm. Takaedza sampuro 500 kuburikidza neprofayiro iyi muna 2024 pasina kukanganiswa kwedzimba.

Kuedza kwe solder joint pull test ndiyo nzira yeQC yatinokurudzira yekusimbisa mutsetse wekugadzira. Tinoshandisa force gauge ine hook fixture inodhonza yakatwasuka pa terminal block body mushure mekusolder. Data redu kubva kumasamples mazana mashanu: avhareji yekudhonza simba 35 N, minimum 28 N, standard deviation 3.2 N. Pakugadzira, ndinokurudzira chinangwa cheCpk che1.33 chine muganho we specification wakaderera we25 N — zvichireva kuti hapana anopfuura solder joint imwe mu4,000 anofanira kukundikana pasi pe 25 N pull force. Chinhu chikuru chinosundira pull force pasi pe 25 N ihombe yakakwana ye solder fill, yatakaona nekuda kwezvikonzero zviviri: PCB hole diameter inodarika 1.55 mm, uye wave solder flux application rate inodonha pasi pe 0.3 mL pabhodhi nekuda kwe spray nozzles dzakavharika.

Kutarisira Kupisa: Kugona Kwazvino Pari Zvino paTembiricha Dzakakwirira Dzemunzvimbo

Mwenje we16A wakayerwa we301-5.0 uri pa25°C ambient nemapango ese akaiswa panguva imwe chete. Kudzikiswa kwemagetsi kunotanga pa40°C ambient: takayera kudzikiswa kwe4% muhuwandu hwemagetsi anoenderera mberi pa10°C pamusoro pe40°C kuburikidza nemiedzo yekufungidzira kwekupisa kwemukati meimba. Pa70°C ambient, mwero wemagetsi unoenderera mberi unodzikira kusvika pa14.0A. Chinhu chinogumira hachisi pini yesimbi kana screw clamp - ikupisa kunogadzirwa painterface yewaya-ku-pin, ine resistance yekubata yakayerwa ye2.0-3.5 mOhm papa pakuedzwa kwedu kwekugadzira. Pa16A, danda rega rega rinopera anenge 0.45 W. Mubhuroko remapango gumi nemaviri rakazadzwa zvizere pa16A papa, kupararira kwemafuta kwese i5.4 W kwakabatana munzvimbo ye60 x 10 mm paPCB. Pasina kunyura kwakakwana kwekupisa kwemhangura, tembiricha yePCB pasi pebhuroko inogona kukwira ne25-35°C pamusoro peambient.

Mhinduro yacho iri nyore: batanidza mapedhi eburi rinopinda nepakati penzvimbo yemhangura inosvika 50 mm² padanda rega rega paPCB, uchishandisa 35 µm kana mhangura inorema. Bhokisi remapango gumi nemaviri rine danda rega rega rakabatana nemhangura ye50 mm² rinoratidza kukwira kwetembiricha yePCB ye12°C chete pa16A inoenderera mberi, zvichienzaniswa ne30°C isina kubatana kwemhangura.

Kuedzwa kweHigh-Pot Mushure meKubatanidzwa: Zvinorehwa neAC 2000V Rating muKugadzirwa

Iyo 301-5.0 inotsanangurwa nemagetsi asingachinji eAC 2000V paminiti pakati pemapango ari pedyo. Iyi imhando yekuedza pablock yeterminal chete, kwete paPCB yakaunganidzwa. Kana block yaiswa wave solder pabhodhi, bvunzo ye high-pot inofanira kuverengerwa zvinhu zvePCB (FR-4 inowanzo shanda 40 kV/mm, saka 1.6 mm inopa 64 kV dielectric strength), solder joint profile, uye chero flux residue iri pamusoro pebhodhi. Mukuona kwedu, kutadza mukugadzirwa kwe high-pot kuyedzwa pa1,500V AC kunowanzo kukonzerwa ne flux residue bridging pakati pe adjointed pin solder joints, kwete neterminal block pachayo. Tinokurudzira kutaura flux isina kuchena ine surface insulation resistance ye minimum 10¹¹ Ohm pa 85°C uye 85% relative humidity pa IPC J-STD-001, uye inoda kuongororwa nemaziso kwe inter-pin surfaces usati waedza high-pot.

Pakushandisa zvinoda kuvharwa kwakasimba — zvakaita semagetsi ekurapa sekureva kweIEC 60601 — pitch ye5.0 mm inopa 4.0 mm yekukwira pakati pemapango ari pedyo (pinch edge kusvika pin edge pa solder joint). Izvi zvakakwana kune 250V working voltage ine pollution degree 2 paIEC 60947-7-4. Pa 300V working voltage, pitch inodiwa i5.0 mm, zvinoreva kuti mamwe mapini ese anofanira kusiiwa asina vanhu kuti asvike 10.0 mm pitch.

Kuongorora Kugadzirwa uye Bvunzo dzeQC dzatinoita paBatch yega yega

Boka rega rega rekugadzira re301-5.0 terminal blocks rinopinda mumiedzo mina yeQC inosungirwa pafekitori yedu isati yatumirwa. Yekutanga i torque test: tinoisa 0.4 Nm pachikuruu chekubatanidza tichishandisa torque screw yakaganhurirwa uye tinoona kuti screw inotenderera zvakasununguka kuburikidza nemadhigirii 360 pasina kusunga. Yechipiri i wire pull test: tinosunga waya ye14 AWG pa0.4 Nm todhonza pa50 N kwemasekondi gumi - waya haifanirwe kufamba. Yechitatu i salt fog test pa 5 samples pa 10,000 pieces - maawa 48 mu 5% NaCl pa 35°C pa IEC 60068-2-11, pasina ngura inoonekwa pa brass pin kana pa tin-plated screw. Yechina i dimensional inspection pa IEC 60947-7-4 ye pin spacing, housing width, uye height tichishandisa vision measurement system ine ±0.01 mm accuracy.

Muna 2024, takaedza mabheti ekugadzira makumi mana nemanomwe kuburikidza neprototi iyi uye takaramba mabheti matatu: rimwe rekuti torque isingadzokororwe pachiteshi chimwe chete chekuunganidza otomatiki, rimwe remapellet ePA66 anoratidza hutsi hunoratidza kunwa hunyoro panguva yekuchengetwa, uye rimwe rekuti denderedzwa rehupamhi hwepini rinokonzerwa nedhiziri rakasakara. Matambudziko ese matatu akagadziriswa tisati tatanga kugadzira rimwe rinotevera.

Kuedza Torque uye Data Rekuvimbika Kwekubatanidza

Skuruu yekusunga pa301-5.0 yakagadzirwa nesimbi yeM2.6 ine zinc-plated finish. Mukuyedza kwedu kugadzira torque, tinoshandisa 0.4 Nm totarisa mamiriro matatu: skuruu inotenderera zvakasununguka kuburikidza nemadhigirii 360 isina kusunga, kumanikidzwa kwekusunga kunosvika 20 N pawaya, uye musoro weskuruu haubvisi. Data redu ra2024 kubva kumabhechi makumi mana nemanomwe rakaratidza avhareji yekushanda kwe torque ye0.38 Nm ine standard deviation ye0.03 Nm. Hapana sampuro dzakakundikana pamuganhu we 0.4 Nm.

Kune maodha anodzokororwa anopfuura zvidimbu 5,000 pamwedzi, tinoita thermal cycling pasampuli gumi pamwedzi: 500 cycles kubva -40°C kusvika +110°C. PA66 housing ine CTE ye80 x 10⁻⁶ /°C zvichienzaniswa ne17 x 10⁻⁶ /°C yebrass pin. Kuwedzerwa kwedifferential pa -40°C kunoita kuti pave nemukana we 0.02 mm mukati me 0.05 mm design tolerance. International electrotechnical safety standards inochengetwa ne iyo IECKuchinja kwepakati pesimba re clamp mushure me 500 cycles kwaive 6.2% mu data redu ra2024.

Ona yedu nzvimbo yakakwana yekuvhara terminal uye chimiro chekambaniMitemo yekuchengetedza inochengetwa ne IEC.

Kuramba Kudzivirira uye Kuedza Dielectric Data

Kudzivirira kupinza kwe301-5.0 terminal block pakati pemapango ari pedyo kunoedzwa paDC 500V paIEC 60512-3-1. Mukuyedzwa kwedu kwe2024 kwemasampuli 1,200 mumabatch gumi nemaviri, kudzivirira kupinza kwakaderera kwakanyorwa kwaive 5,200 MOhm, neavhareji yebatch ye8,700 MOhm. Data rezvinhu zvePA66 rinoratidza kudzivirira kwevhoriyamu ye10¹⁵ Ohm·cm pa23°C uye 50% RH, asi kudzivirira kupinza chaiko mupango iri rakabatanidzwa kunoderedzwa nekusvibiswa kwepamusoro kubva mukugadzirwa. Takaona kuti injection molding flash - microscopic PA66 material protrusions pamutsetse wekuparadzanisa wemold - inogona kuderedza daro recreepage pakati pemapango ari pedyo kubva pakugadzirwa kwe4.0 mm kusvika 3.2 mm kana zvakaipisisa. Takashandisa nzira yekuchengetedza mold inopukuta tambo yekuparadzanisa madenderedzwa ega ega ega e50,000, izvo zvakaderedza kukwirira kweflash kubva pa0.08 mm kusvika pasi pe0.02 mm.

Kuyedzwa kwemagetsi anomira nemagetsi e dielectric pa AC 2000V paminiti pa IEC 60947-7-4 hakudi kupwanyika kana kupenya. Mukuyedzwa kwedu, magetsi anomira nemagetsi pakati pemapango ari pedyo mu 301-5.0 configuration anowanzova AC 3,800-4,200V, zvichipa mukana wekuchengetedza weinenge kaviri kupfuura voltage inomira nemagetsi yakayerwa. Chinhu chinogumira hachisi imba yePA66 — ine simba re dielectric re25 kV/mm — asi nzira inotsvedza pakati pemapini maviri ebrass paPCB surface level, apo solder fillet inoderedza daro rinoshanda.

Maonero nzvimbo yakakwana yekuvhara terminal uye zvitupa. Mitemo IEC.

Kuenderana Kwekushongedza neAutomated PCB Assembly

Chivharo che301-5.0 chakagadzirirwa kusungirirwa kwemafungu asi chinoshandawo nekubatanidza mafungu uye kusungirirwa nemaoko. Pakusungirirwa kwemafungu pamapuranga e1.6 mm FR-4, zvatinokurudzira ndeizvi: kupisa 100-120°C kwemasekonzi 60-90, tembiricha yekusungirirwa 255-260°C, nguva yekugara masekondi 3-5. Pakusungirirwa kwechinhu chimwe chete nemuromo mumwe chete, nguva yekugara inokurudzirwa inowedzera kusvika masekondi 6-8 papini kuti ive nechokwadi chekuti solder yazara zvakakwana. Housing yePA66 inogona kumira 260°C kwemasekonzi 10 nguva yekuratidzwa kwechinhu kusvika masekondi gumi papini, izvo zvakakwana kune ese maitiro akajairwa ekusungirirwa. Pakusungirirwa nemaoko, shandisa simbi ye350-380°C ine muromo we2.0 mm, ganhurira nguva yekubata kusvika masekondi matatu papini, uye bvumira masekondi gumi kutonhora pakati pemapini kudzivirira kuungana kwekupisa muhombe. Kune mashandisirwo akawanda anodarika mayuniti zviuru gumi pagore, tinokurudzira kurongedza tepi-uye-reel ye301-5.0 terminal block, iyo inobvumira kuiswa otomatiki paPCB isati yaiswa wave soldering. Fomati yedu yetepi-uye-reel inobata zvidimbu mazana mashanu pa reel imwe neimwe ine 12.7 mm pitch pakati pemabhuroko. Muchina wekuisa unosarudza bhuroko rega rega riri pedyo nemuviri weimba uchishandisa vacuum nozzle, woiisa paPCB, uye simba rekuchengetedza mapini ari mu solder paste rinobata bhuroko panzvimbo yaro panguva yekutakura kuenda kunzvimbo ye wave soldering. Simba rinokurudzirwa re pick-uye-place i5-8 N, izvo zvakakwana kusunda mapini kuburikidza ne paste pasina kuakombamisa.

Kusarudzwa Kwezvinhu uye Kutevedzera Kuongororwa Kwekupisa

Housing ye301-5.0 yakagadzirwa nejekiseni kubva kuPA66 (nylon 66) ine chiyero cheUL94 V-0 chekubvira chiri paukobvu hwe0.8 mm. Chiyero cheV-0 chinoda kuti sampuli yega yega idzime mukati memasekonzi gumi mushure mekunge burner yabviswa, pasina madonhwe emoto anobvumirwa. Mukuyedzwa kwedu kwemukati kwemasampuru zana kubva munzvimbo gumi dzekugadzira, avhareji yenguva yekudzima yaive masekondi 3.2 neavhareji yemasekonzi manomwe. Chinhu chePA66 chinopawo comparative tracking index (CTI) ye600V paIEC 60112, zvinoreva kuti pamusoro peimba inogona kumira 600V tracking voltage pasina kugadzira nzira yekabhoni inofambisa mhepo. Chiyero cheCTI chakakosha pamashandisirwo ebhodhi rekugovera magetsi munzvimbo dzine hunyoro hwakawanda uko kunyungudika kwepamusoro kunogona kugadzira nzira yekubuda kwemvura pakati pemapango ekupedzisira ari pedyo. Kufanirwa kwedu kwezvinhu zvePA66 kunosanganisira kuyedzwa kweCTI pamasampuru matatu pabatch, nemuganhu we575V. Muna 2024, batch imwe chete yakakundikana pa560V uye yakadzoserwa kumutengesi.

Chivharo che301-5.0 terminal block chinowanikwa muzvikamu zviviri kusvika gumi nezviviri zvemapango pabhuroko rega rega. Chivharo chimwe nechimwe chine chiyero chakafanana chemagetsi che16A 300V pasinei nehuwandu hwemapango. Mapango akawanda anogona kuiswa padivi nepadivi paPCB kuti pave nekubatana kwakakura kwemapango, uye pitch ye5.0 mm inoita kuti ienderane nemagridhi akajairwa ePCB. Kune mabhodhi emagetsi anoda mapango anopfuura gumi nemaviri, tinokurudzira kushandisa mabhuroko akawanda ane nzvimbo yepakati pe2.0 mm pakati pemabhuroko ari pedyo.

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