Kei te mahi ahau i ngā whakatakotoranga me te tautoko poraka taunga i J-GUANG, ā, he nui te wā e pau ana i ahau ki te whakautu i ngā pātai tahora PCB mai i ngā kaihoahoa e whakauru ana i tā mātou poraka pito tīwiri 301-5.0 ki ngā papa tohatoha hiko. Ehara ngā pātai e pātaihia ana e au mō ngā whakatakotoranga poraka pito tonu — kei runga i te pepa raraunga ēnā. E pā ana ki te whakaurunga miihini: te tata o ngā poraka tata, te rahi o te wiri e whakarato ana i te pono o te hononga honohono pai rawa atu, me te aha e pā ana ki te whare PA66 ina haere i roto i te kaukau honohono ngaru 260°C mō te 8 hēkona. Kei roto i tēnei tuhinga ngā whakautu i whakawhanakehia e au mai i ngā puranga 12 o ngā whakamātautau tohu kiritaki i whakahaerehia e mātou i waenga i te tau 2023 me te 2025.

Ngā Ahu o te Tapuwae PCB: Ngā Mea e Whakaatuhia ana e te Pepa Raraunga me Ngā Mea e Whai Hua ana i te Whakaputa

Ka whakamahia e te 301-5.0 he kohao titi 5.0 mm, he paerewa mō tēnei akomanga o poraka taurangaKo ngā ine o te pine he parahi tapawhā rite ki te 1.0 x 1.2 mm me te whakakikorua tine. Ko te rahi o te kōhao PCB e taunakitia ana he 1.3-1.5 mm te whānui kua oti — he whānui kia taea ai e te pine te whakapūmau i a ia anō i te wā e whakapiripiri ana i te ngaru engari he kikī kia taea ai e te mahi a te uaua te kukume i te whakarewa mā roto i te kōhao. I roto i ā mātou whakamātautau pono o te hononga whakarewa puta noa i te 500 tauira, ko ngā kōhao i te 1.4 mm i whakaputa i te kaha kukume toharite teitei rawa atu i te 35 N me te iti rawa o te 28 N. Nā ngā kōhao i te 1.6 mm i whakaiti i te kaha kukume toharite ki te 29 N nā te mea he whānui rawa te āputa uaua mō te whakakī whakarewa ōrite.

Kotahi te kōrero kāore i roto i te pepa raraunga engari he mea nui i roto i te mahi whakaputa: ka rerekē te āputa mai i te pine ki te poka i runga i te matotoru o te PCB. I runga i te papa FR-4 paerewa 1.6 mm, ka homai e te poka 1.4 mm me te pine 1.2 mm te āputa 0.2 mm te whānui, he mea tino pai. I runga i te papa 2.4 mm mō ngā tono au-rahi, ka mahi tonu te āputa kotahi engari me piki ake te wā noho o te tūhono ngaru mai i te 3 hēkona ki te 5 hēkona kia tino whakakīia ai te poka. Kei a mātou he huinga o ngā tawhā tūhono ngaru e taunakitia ana e te matotoru o te papa ka tukuna e au ki ia kiritaki tuatahi.

Te Ātea Ā-Mīhini Huri noa i te Poraka Whakamutunga i runga i te PCB

E 10.0 mm te teitei o te 301-5.0 mai i te mata o te PCB ki te tihi o te whare. Me uru atu te tīwiri whakapūmau mai i runga., ā, kua whakatōkia te mokowā tīwiri ki roto i te whare, 2.5 mm te hohonu. Mō te waea ā-ringa, ko te tikanga he iti rawa te āputa o te 15 mm i runga ake i te PCB hei whakauru i tētahi tīwiri mata-papatahi paerewa 3.0 mm i te koki whakaurunga 15-tohu. Mō te tīwiri aunoa i roto i te hanga, ka piki ake te whakaritenga āputa ki te 20 mm hei whakauru i te kaipupuri mata tīwiri.

I waenganui i ngā poraka pito tata, e taunaki ana ahau kia 2.0 mm te iti rawa o te tawhiti mai i te taha o te whare ki te wāhanga e whai ake nei. He 8.5 mm te whānui o te whare mō ia tūranga pou, nō reira, me te 5.0 mm te tawhiti, ko te tawhiti i waenganui i ngā pakitara o te whare tata he 8.5 - 5.0 = 3.5 mm. He rawaka taua tawhiti 3.5 mm mō te nuinga o ngā taiao whakaputa, engari ki te haere te papa mā te paninga conformal, ko te tikanga me 5.0 mm te tawhiti mō te pūwero paninga. I kitea e tētahi kiritaki he 3.5 mm te tawhiti o tā rātou karetao paninga whiriwhiri ki ngā pakitara o te whare — ka huri rātou ki ngā pou katoa kua whakakīia hei hanga i te tawhiti 10 mm i runga i te ara paninga, kātahi ka whakakīia ā-ringa ngā tūranga kua pekehia.

Te Pono o te Hononga Whakakotahi: Ngā Tawhā Whakakotahi Ngaru me ngā Raraunga Whakamātautau-Toia

He mea hanga te whare 301-5.0 mai i te PA66 me te whakatauranga UL94 V-0, ā, he mea hanga kia tū atu ki te whakapiri ngaru. Ko tā mātou kōtaha whakapiri ngaru kua whakaaetia: whakamahanahia i mua i te 100-120°C mō te 60-90 hēkona, ko te pāmahana whakapiri teitei ko te 255-260°C, ko te wā noho ko te 3-5 hēkona mō ngā papa 1.6 mm me te 5-7 hēkona mō ngā papa 2.4 mm. I whakamatauria e mātou he 500 tauira mā tēnei kōtaha i te tau 2024 me te kore he whakarerekētanga o te whare.

Ko te whakamātautau kukume hononga honohono te tikanga QC e taunakihia ana e mātou mō te whakamana i te raina whakaputa. Ka whakamahia e mātou he ine kaha me te taputapu matau e kukume poutū ana i te tinana poraka pito i muri i te honohono. Ko ā mātou raraunga mai i ngā tauira 500: te kaha kukume toharite 35 N, te iti rawa 28 N, te paerewa rerekētanga 3.2 N. Mō te whakaputa, ka tūtohu ahau i te whāinga Cpk o te 1.33 me te rohe whakatakotoranga iti iho o te 25 N — ko te tikanga kaua e neke atu i te 1 hononga honohono i roto i te 4,000 e rahua i raro i te kaha kukume 25 N. Ko te mea matua e pana ana i te kaha kukume ki raro i te 25 N ko te korenga o te rahinga whakakī honohono, i whaihia e mātou ki ngā take pūtake e rua: te diameter o te kōhao PCB neke atu i te 1.55 mm, me te tere tono rerenga honohono ngaru e heke ana i raro i te 0.3 mL ia papa nā te mea kua purua ngā pūwero rehu.

Te Whakahaere Wera: Te Pūngao Auaha i ngā Pāmahana Āhua Teitei

Ko te iahiko 16A kua whakatauria o te 301-5.0 kei te 25°C te pāmahana taiao me ngā pou katoa e utaina ana i te wā kotahi. Ka tīmata te whakahekenga o te iahiko i te 40°C te pāmahana taiao: i ine mātou i te 4% te whakahekenga o te kaha iahiko tonu mō ia 10°C i runga ake i te 40°C mā roto i ngā whakamātautau whakaahua wera o roto. I te pāmahana taiao 70°C, ka heke te whakatauranga iahiko tonu ki te 14.0A. Ehara i te pine parahi, i te rawhi tīwiri rānei te mea whakawhāiti — engari ko te wera i puta mai i te atanga waea-ki-pine, he ātete whakapā kua inehia o te 2.0-3.5 mOhm mō ia pou i roto i tā mātou whakamātautau whakaputa. I te 16A, ka marara ia pou tata ki te 0.45 W. I roto i te poraka 12-pou kua utaina katoatia i te 16A mō ia pou, ko te marara wera katoa he 5.4 W kua kukūhia ki te wāhi 60 x 10 mm i runga i te PCB. Ki te kore he totohu wera parahi e tika ana, ka piki ake te pāmahana PCB i raro i te poraka pito ki te 25-35°C i runga ake i te pāmahana taiao.

He māmā noa te otinga: honoa ngā papa puta-kōhao ki te iti rawa 50 mm² o te horahanga parahi mō ia pou i runga i te PCB, mā te whakamahi i te parahi 35 µm, taumaha ake rānei. Ko te poraka 12-pou me ia pou e hono ana ki te parahi 50 mm² e whakaatu ana i te pikinga pāmahana PCB o te 12°C anake i te kawenga tonu 16A, ki te 30°C kāore he hononga papa parahi.

Te Whakamātautau Pūhiko Hiko-Nui i Muri i te Huihuinga: Te Tikanga o te Whakatauranga AC 2000V i roto i te Whakaputa

Kua tohua te 301-5.0 me te ngaohiko pumau o te AC 2000V ia meneti i waenga i ngā pou tata. He momo whakamātautau tēnei i runga i te poraka pito anake, ehara i te PCB kua huihuia. Kia oti te whakapiripiri i te poraka ki runga i te papa, me whai whakaaro te whakamātautau ipu-teitei ki te rauemi PCB (ko te FR-4 te nuinga o te wā e whakahaere ana i te 40 kV/mm, nō reira ka whakaratohia e te 1.6 mm te kaha hiko 64 kV), te kōtaha hononga whakapiripiri, me tetahi toenga rere i runga i te mata o te papa. I roto i ō mātou wheako, ko ngā hapa i roto i te whakamātautau ipu-teitei whakaputa i te 1,500V AC he mea hanga tata tonu e te toenga rere e hono ana i waenga i ngā hononga whakapiripiri pine tata, ehara i te poraka pito tonu. Ka tūtohu mātou kia tohua he rere kore-horoi me te ātete whakamahana mata o te iti rawa 10¹¹ Ohm i te 85°C me te 85% haumākū whanaunga ia IPC J-STD-001, me te hiahia kia tirohia ngā mata i waenga i ngā pine i mua i te whakamātautau ipu-teitei.

Mō ngā tono e hiahia ana ki te whakakaha i te whakamarumaru — pērā i ngā pūtake hiko hauora e ai ki te IEC 60601 — ka whakaratohia e te piko titi 5.0 mm te 4.0 mm o te tawhiti ngoki i waenga i ngā pou tata (mai i te taha o te titi ki te taha o te titi i te hononga honohono). He rawaka tēnei mō te ngaohiko mahi 250V me te tohu parahanga 2 e ai ki te IEC 60947-7-4. Mō te ngaohiko mahi 300V, ko te ngoki e hiahiatia ana he 5.0 mm, ko te tikanga me waiho kia kaua e whakakīia ngā titi katoa kia eke ki te piko 10.0 mm.

Arotakenga Whakaputa me ngā Whakamātautau QC ka mahia e mātou i ia puranga

E whā ngā whakamātautau QC e hiahiatia ana mō ia puranga hanga o ngā poraka pito 301-5.0 i roto i tō mātou whare i mua i te tukunga. Ko te tuatahi he whakamātautau taipana: ka whakamahia e mātou te 0.4 Nm ki te tīwiri whakapūmau mā te whakamahi i te tīwiri taipana kua whakatikatikaina, ā, ka tirohia kei te huri noa te tīwiri i roto i te 360 ​​nekehanga me te kore e herea. Ko te tuarua he whakamātautau kukume waea: ka whakapūmau mātou i te waea 14 AWG i te 0.4 Nm ka kukume i te 50 N mō te 10 hēkona — kaua te waea e neke. Ko te tuatoru he whakamātautau kohu tote ki runga i te 5 tauira mō ia 10,000 wahi — 48 hāora i roto i te 5% NaCl i te 35°C e ai ki te IEC 60068-2-11, me te kore e kitea te waikura i runga i te pine parahi, i te tīwiri whakakikoruatia rānei. Ko te tuawhā he tirotiro ā-ahu e ai ki te IEC 60947-7-4 mō te mokowā o te pine, te whānui o te whare, me te teitei mā te whakamahi i te pūnaha ine tirohanga me te tika ±0.01 mm.

I te tau 2024, i whakamatauria e mātou e 47 ngā puranga whakaputa mā tēnei tikanga, ā, i whakakahoretia e mātou e 3 ngā puranga: tētahi mō te pānui taipana kāore e taea te whakahoki i runga i tētahi teihana huihuinga aunoa kotahi, tētahi mō tētahi puranga o ngā pire PA66 e whakaatu ana i te kohu e tohu ana i te mimiti makuku i te wā e rongoa ana, me tētahi mō te rerekētanga o te rahinga o te teitei o te pine i puta mai i te mate tā. I whakatikahia ngā take e toru i mua i te puranga whakaputa e whai ake nei.

Te Whakamātautau Taipana me te Raraunga Pono o te Hononga

Ko te tīwiri whakapūmau i runga i te 301-5.0 he maitai M2.6 me te paninga konutea. I roto i tā mātou whakamātautau taipana whakaputa, ka whakamahia e mātou te 0.4 Nm, ā, e toru ngā āhuatanga e tirohia ana: ka huri noa te tīwiri i roto i te 360 ​​nekehanga me te kore e herea, ka eke te pēhanga whakapūmau ki te iti rawa 20 N i runga i te waea, ā, kāore te pane tīwiri e marere. Ko ā mātou raraunga o te tau 2024 mai i ngā puranga 47 i whakaatu i te taipana whakahaere toharite o te 0.38 Nm me te paerewa rerekētanga o te 0.03 Nm. Kāore he tauira i rahua i te rohenga 0.4 Nm.

Mō ngā ota auau neke atu i te 5,000 ngā wahi ia marama, ka whakahaerehia e mātou te huringa wera i runga i te 10 tauira ia marama: 500 huringa mai i te -40°C ki te +110°C. Ko te CTE o te whare PA66 he 80 x 10⁻⁶ /°C versus 17 x 10⁻⁶ /°C mō te pine parahi. Ko te whānui rerekētanga i te -40°C ka hanga he āputa 0.02 mm i roto i te manawanui hoahoa 0.05 mm. Ko ngā paerewa haumaru hiko hangarau o te ao e pupurihia ana e te IECKo te huringa kaha o te rawhi i muri i te 500 huringa he 6.2% i roto i ā mātou raraunga mō te tau 2024.

Tirohia tā mātou whānuitanga poraka whakamutunga katoa me kōtaha kamupeneNgā paerewa haumaru e puritia ana e IEC.

Ngā Raraunga Whakamātautau Ātete Ārai me te Whakamātautau Hiko-ā-Irahiko

Ka whakamātauria te ātete ārai o te poraka pito 301-5.0 i waenganui i ngā pou tata i te DC 500V e ai ki te IEC 60512-3-1. I roto i tā mātou whakamātautau whakaputa i te tau 2024 o te 1,200 tauira puta noa i te 12 puranga, ko te ātete ārai iti rawa i tuhia ko te 5,200 MOhm, me te toharite puranga o te 8,700 MOhm. E whakaatu ana ngā raraunga rauemi PA66 i te ātete rōrahi o te 10¹⁵ Ohm·cm i te 23°C me te 50% RH, engari ko te ātete ārai tuturu i roto i te poraka pito kua huihuia ka whakaitihia e te poke o te mata mai i te tukanga hanga. I kitea e mātou ko te uira whakarewa werohanga — ngā pupū rauemi PA66 moroiti i te rārangi wehenga o te pokepoke — ka taea te whakaiti i te tawhiti ngoki i waenganui i ngā pou tata mai i te uara hoahoa o te 4.0 mm ki te 3.2 mm i roto i te take kino rawa atu. I whakatinanahia e mātou he tikanga tiaki pokepokea ai e whakakanapa ana i te raina wehewehe i ia 50,000 huringa, ā, i whakaitihia ai te teitei o te uira mai i te 0.08 mm ki raro iho i te 0.02 mm.

Kāore e hiahiatia he pakaru, he mura rānei mō te whakamātautau ngaohiko ātete-hiko i te AC 2000V ia meneti e ai ki te IEC 60947-7-4. I roto i ā mātou whakamātautau, ko te ngaohiko pakaru i waenga i ngā pou tata i roto i te whirihoranga 301-5.0 he AC 3,800-4,200V te tikanga, e whakarato ana i te tawhē haumaru tata ki te 2x i runga ake i te ngaohiko ātete kua whakatauria. Ko te mea whakawhāiti ehara i te whare PA66 — he kaha dielectric 25 kV/mm — engari ko te ara ngoki i waenga i ngā pine parahi e rua i te taumata mata PCB, kei reira te awhi honohono e whakaiti ana i te tawhiti whai hua.

Tirohanga whānuitanga poraka whakamutunga katoa me ngā tiwhiketeNgā Paerewa IEC.

Hototahitanga Whakapiripiri me te Huihuinga PCB Aunoa

Kua hangaia te poraka pito 301-5.0 mō te whakapiri ngaru engari he hototahi hoki ki te whakapiri whiriwhiri me te whakapiri ā-ringa. Mō te whakapiri ngaru i runga i ngā papa FR-4 1.6 mm, ko ā mātou tawhā e taunakitia ana ko: whakamahanahia te 100-120°C mō te 60-90 hēkona, te pāmahana whakapiri 255-260°C, te wā noho 3-5 hēkona. Mō te whakapiri whiriwhiri me te pūwero kotahi, ka piki ake te wā noho e taunakitia ana ki te 6-8 hēkona mō ia pine kia pai ai te whakakī o te whakapiri. Ka taea e te whare PA66 te tu atu ki te 260°C mō te 10 hēkona te roa o te wā whakaatu mō ia pine, he rawaka mō ngā tukanga whakapiri paerewa katoa. Mō te whakapiri ā-ringa, whakamahia he rino 350-380°C me te pito 2.0 mm, whakawhāitihia te wā whakapā ki te 3 hēkona mō ia pine, ā, tukua kia 10 hēkona te whakamatao i waenga i ngā pine kia kore ai e kohia te wera i roto i te whare. Mō ngā tono nui e neke atu ana i te 10,000 ngā waeine ia tau, ka tūtohu mātou i te takai rīpene-me-rīra mō te poraka pito 301-5.0, e āhei ai te whakanoho aunoa ki runga i te PCB i mua i te whakapiri ngaru. Ka taea e tā mātou whakatakotoranga rīpene-me-rīra te pupuri i te 500 ngā wahi mō ia rīra me te tawhiti 12.7 mm i waenga i ngā poraka. Ka tangohia e te mīhini whakanoho ia poraka e te tinana o te whare mā te whakamahi i te pūwero korehau, ka whakanohoia ki runga i te PCB, ā, ko te kaha pupuri o ngā pine i roto i te whakapiri whakapiri ka pupuri i te poraka ki tōna tūranga i te wā e kawehia ana ki te teihana whakapiri ngaru. Ko te kaha whakapiri-me-te-whakanoho e taunakitia ana ko te 5-8 N, he rawaka hei pana i ngā pine mā roto i te whakapiri me te kore e piko.

Te Kōwhiringa Rauemi me te Whakatauranga Mumura

Ko te whare o te 301-5.0 he mea werowero mai i te PA66 (nailona 66) me te whakatauranga mura UL94 V-0 i te matotoru 0.8 mm. Ko te whakatauranga V-0 e hiahia ana kia tineia ia tauira i roto i te 10 hēkona i muri i te tangohanga o te mura, me te kore e whakaaetia he maturuturu mura. I roto i ā mātou whakamātautau ā-roto o te 100 tauira mai i te 10 puranga whakaputa, ko te wā tineia toharite he 3.2 hēkona me te mōrahi o te 7 hēkona. Ka whakaratohia hoki e te rauemi PA66 he taupū aroturuki whakataurite (CTI) o te 600V e ai ki te IEC 60112, ko te tikanga ka taea e te mata o te whare te tu atu i te ngaohiko aroturuki 600V me te kore e hanga he ara waro kawe. He mea nui te whakatauranga CTI mō ngā tono papa tohatoha hiko i roto i ngā taiao haumākū teitei e taea ai e te hauhautanga o te mata te hanga ara turuturu i waenga i ngā pou pito tata. Kei roto i tā mātou tohu rauemi PA66 e haere mai ana te whakamātautau CTI i runga i ngā tauira e toru mō ia puranga, me te rohe whakatakotoranga o te iti rawa 575V. I te tau 2024, i rahua tētahi puranga i te 560V, ā, i whakahokia ki te kaiwhakarato.

E wātea ana te poraka pito 301-5.0 i roto i ngā whirihoranga pou e 2 ki te 12 mō ia poraka. Ka mau tonu te mana hiko 16A 300V o ia pou ahakoa te maha o ngā pou katoa. Ka taea te whakairi i ngā poraka maha-pou ki te taha o te PCB hei hanga hononga maha-pou, ā, mā te piko 5.0 mm ka taea te hototahi ki ngā whatunga tahora PCB paerewa. Mō ngā papa tohatoha hiko e hiahia ana ki te neke atu i te 12 ngā pou, ka tūtohu mātou kia whakamahia he maha ngā poraka me te iti rawa o te 2.0 mm te tawhiti i waenga i ngā whare poraka tata.

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