1. Pfupiso yeMutungamiri: Mutengo Wakavanzika weKukundikana kweConnector
Kune vanovaka maindasitiri ekudzora mapaneru, vanosanganisa otomatiki-system, uye network dzemagetsi-vanogovera, zororo re terminal block screw torque haisi nyaya yekugadzirisa zvinhu nguva dzose—idambudziko guru rinokonzeresa kutadza kushanda zvakanaka kwesystem. Chiitiko ichi ndicho chinokonzera nguva yekushanda isina kurongwa, makodhi ezvikanganiso zve PLC, uye kutyorwa kwenzvimbo dzekuchengetedza. Kusimba kwekubatana kwemagetsi kunoenderana chete nesimba rinogara riripo rekubata michina kwenguva yakareba.
Kurerutswa kwesimba remagetsi muzvivharo zvemagetsi zvinokwira kunowanzoitika kana simba rekubatanidza richiderera neanopfuura 20% kubva pakutanga kwemugadziri. Tsanangudzo ye 0.8–1.2 N·mKana izvi zvikaitika, zvinokonzeresa kudonha kwemuchina. Saka, kudziviswa kwekubata kunokwira zvakanyanya kubva pa 10 mΩ. Kudziviswa uku kunokonzera kupisa kwenzvimbo (I²R kurasikirwa) izvo zvinokurumidza kukwidza tembiricha yemugumo kupfuura 105°C, zvichikanganisa zvakanyanya insulation yakapoteredza.
Chivharo chimwe chete chemagetsi chinopisa zvakanyanya chiri mu 480 V motor-control center chinogona kukonzera dambudziko guru re arc-fault, zvichiparadza zvikamu zvakapfava zviri pedyo uye zvichikonzera zviitiko zveNFPA 70E arc-flash zvine simba rinodarika 8 cal/cm². Kuderedza njodzi idzi, kushandisa hurongwa hwakasimba hwekuongorora kuvimbika kwemagetsi kwakakosha. Hurongwa uhwu hunotarisa zvakanyatsonaka ma clamping, material, uye thermal-management parameters anoparadzanisa zvakajeka ma terminal blocks chaiwo eindasitiri kubva kune consumer-grade commodity connectors.
Sekambani inotungamira ine chitupa pasi pe ISO 9001:2008yedu, Peji Rekutanga reKambani (ISO9001:2008, SGS, UL, 2010) Ongororo iyi inoongorora zvinhu zvitatu zvikuru zvinoratidza kana mugadziri achikodzera kuva mutengesi wepamusoro-soro:
- Kugadzikana kweTorque uye Clamping-Force paTerminal Block Screw: Hwaro hwemainjiniya emakanika ekubatanidza kusina simba rakawanda.
- Kuomarara kweZvinhu Zvinokwira-Keji uye Kuramba Kukwira kweConductor: Chiyero chesimbi chinodzivirira kuora kwesimba rekubatanidza nekufamba kwenguva.
- Kugara Kwenguva Yekupisa uye Index Yekupisa Kwekudzivirira: Iyo thermal parameter inodzivirira arc-fault pasi pemagetsi akawanda.
2. Unyanzvi hweKunyura Zvakadzika & Uinjiniya hweZvinhu
2.1 Kuchengetedza Torque uye Kugadzikana kweClamping-Force
Mabhuroko ekupedzisira e "rising-cage", akadai seaya ari muchikamu chedu che "comprehensive" Mutsetse weChigadzirwa cheTerminal Blocks (Sikuruu / Isina Skuruu / Inodzikira / DIN Rail), shandisa keji inofambiswa nesikuruu yakagadzirwa zvakanyanya (kazhinji brass, C36000, H58) iyo inonyatso sunga conductor pabhawa remagetsi rakaputirwa netin. Kurerutsa torque inzira inokuvadza inoitika mumamiriro matatu makuru:
- Kukweshana Kunokonzerwa neOxidation: Kukwikwidzana kwe screw thread kunowedzera nekuda kwe micro-oxidation nekufamba kwenguva (μ > 0.25 vs. initial 0.15), zvichireva kuti applied torque haichashandisi simba re clamping.
- Kufamba Kwemutyairi Anogara Akasimba: Madhaivha anochinja chimiro kana achimanikidzwa zvakasimba. Semuenzaniso, madhaivha ealuminium anogona kukwira ne 0.1 mm pagore pa 20 N/mm² pressure.
- Kusiyana kweKuwedzera kweThermal: Kugara uchidziya (kuchinja kwezuva nezuva kubva pa20°C kusvika 60°C mukati memapaneru eindasitiri akavharirwa) kunokonzera kukura kwakasiyana pakati pebrass (α = 19×10⁻⁶ /°C) necopper (α = 17×10⁻⁶ /°C), zvichidzosera sikuruu kumashure zvishoma nezvishoma.
Kurwisa izvi, mabhuroko edu epamusoro ekupedzisira anoshandisa screws dzesimbi dzakaputirwa ne nickel (M3, HRS, torque 0.8–1.2 N·m) zvakabatana nemawashers ane serrated specialized (DIN 6798, ukobvu hwe 0.5 mm). Mawashers aya anoruma pamusoro pe conductor, achiita se dynamic spring inoramba iine simba rekusunga ≥ 80% yehukoshi hwayo hwekutanga kunyangwe mushure me 1,000 extreme thermal cycles (−40°C kusvika +105°C). Nekuda kweizvozvo, contact resistance inochengetwa zvakanyanya pa
- Kumbira bvunzo yekuchengetedza torque (1,000 thermal cycles, −40°C kusvika +105°C, simba rekusunga ≥ 80% yekutanga).
- Simbisai kuramba kwekubata (
- Simbisa zvinhu zve screw ne plating (HRS, nickel-plated ≥ 3 μm, yakasimbiswa kuburikidza neXRF).
- Simbisa zvinodiwa zvewasher ine serrated washer (DIN 6798, 0.5 mm, 65Mn spring steel, HRC 40–45).
2.2 Kuomarara kwechinhu chinokwira-keji uye kuramba kutsvedza
Kuumbwa kwesimbi mukeji inokwira ndiyo gamba risingaonekwe rehupenyu hwemagetsi. Keji (inowanzoitwa nesimbi yeC36000, kuomarara kwesimbi yeHV 80–100) inofanira kuramba kushanduka kwakanyanya kwemuviri pasi pekumanikidzwa kwekumanikidza kunodarika 100 MPa. Kana vagadziri vakaderedza mitengo nekushandisa makeji akapfava (HV
Semunhu anotungamira pakati pe Vagadziri veChina Terminal Blocks, Vatengesi | J-GUANG, nzira yedu yeinjiniya inoda kuti kushandiswa kwe ndarira yakagadzirwa (C37700, HV 110–130)Kuburikidza nekuomesa basa kubva pakuumba zvinhu zvinotonhora (zvichideredza chimiro ne15%), zvikamu zvedu zvinowana simba rekubata re ≥ 90% mushure mekutenderera kwe500 aggressive torque. Uyezve, bhawa remazuva ano rinoshandisa mhangura yakaputirwa netin (C11000, 2 μm Sn) ichisangana nezvinodiwa zvakasimba zvekugona kusungirira pa IPC/J-STD-002, inowedzerwa ne silver-flash underlayer (0.1 μm Ag) kuti ipe simba rekudzivirira sulfide munzvimbo dzakaoma.
Nzira yekuongorora Zvinhu zveKeji
- Kumbira ruzivo rwekuoma kwekeji (HV 110–130, Vickers scale, 5% batch sampling).
- Simbisa kuchengetedza simba rekubata (500 torque cycles, ≥ 90% yesimba rekutanga, uchishandisa otomatiki test fixers).
- Simbisa ukobvu hwe current-bar plating (Sn ≥ 2 μm, Ag 0.1 μm, XRF testing, 5% sampling).
- Simbisa kugona kusvira (IPC/J-STD-002, Chikamu 3, ichivimbisa kuti hapana kunyorova).
Kubatanidzwa kwePCB neKubatana
Kuve nechokwadi chekuti kuomarara kwezvinhu kunopfuura mabhuroko ekupedzisira. Kuti tikwanise kubatanidza zvinhu zvakawanda, Mutsetse weChigadzirwa cheConnectors (Pin Header / Female Header / IDC / PCB) inotevedzera mitemo yesimbi yakafanana, ichivimbisa kuti data remagetsi rakawanda uye kutumirwa kwesimba zvinoramba zvakagadzikana pasi pekumanikidzwa kwakafanana kwemakanika nekupisa.
2.3 Kugara Kwenguva Yekupisa uye Kudzivirira Tembiricha
Kushanda kwemagetsi kunongovimbika chete sekunge chinhu chinoputira chakachipoteredza. Chinhu chinoputira magumo chinofanira kugara nekupisa kusingaperi pasina kukanganiswa ne micro-cracking kana electrical tracking. Standard yeindasitiri inoda zvinhu zvakaita sePA66 zvinosangana nezvinodiwa zvakasimba. UL 94 V-0 Inodzivisa Murazvo tsanangudzo uye kupasa IEC 60695-2-12 Waya Inopenya bvunzo pa850°C.
Iyo Thermal Index (TI) pa UL 746B inoda kuti chinhu ichi chirarame kwemaawa 50,000 pakupisa kwacho kwakayerwa (105°C yePA66 yakajairwa) ukuwo ichichengetedza kanenge 50% yesimba rayo rekutanga rekudhonza. Kuti ipfuure izvi, dzimba dzedu dzega dzinoiswa ne PA66-GF25 (25% girazi fiber rekusimbisa)Izvi zvinokwidza Heat Deflection Temperature (HDT) kusvika pa240°C pa1.8 MPa. Yakabatanidzwa ne phosphorous flame retardants isingakuvadzi nharaunda, imba yacho ine ukobvu hwe 0.8 mm inosvika TI 105°C uye inogona kuramba ichitevera CTI 600 (PLC 0). Kuramba kweArc kunosimbiswa kuti ndekwe ≥ 120 seconds zvichienderana ne Kudzivirira kweArc yeASTM D495 mitemo.
Protocol yeThermal Audit & Global Compliance
- Kumbira kuyedzwa kwe thermal index (UL 746B, 105°C, maawa 50,000, kuchengetedza tensile ≥ 50%).
- Simbisa zvabuda mubvunzo dzemagetsi (IEC 60695-2-12, 850°C, masekondi makumi matatu, hapana murazvo zvachose).
- Simbisa Comparative Tracking Index (CTI ≥ 600 V, PLC 0, IEC 60112 muzvikamu zvishanu).
- Simbisa kugona kwekudzivirira arc (≥ 120 s, ASTM D495, 3 sampuli).
3. Kutsvaga & Kudzora Hunhu Hwakanaka
Mapoka ekutenga zvinhu anofanira kuchinja kubva pakutenga zvinhu kuenda pakutsvaga zvinhu zvinoenderana nekuvimbika. Gadzirisa zvinotevera zvakakosha usati wapedzisa chibvumirano chekutenga kuti uve nechokwadi chekuti cheni yako yekutengesa zvinhu yakachengetedzwa kuti isapararire nekukundikana kwemunda nguva isati yakwana:
(a) Kuchengetedza Torque Yesikuruu
Inofanira kutsungirira kupisa kwe1,000 nekusara kwesimba rekusunga riri ≥ 80%, uye kuramba kubata kwechinhu kuri
(b) Kuomarara kwechinhu chekeji
Inoda HV 110–130 rating. Inofanira kutsungirira 500 torque cycles ukuwo ichichengetedza clamping force ≥ 90%.
(c) Kugara kwenguva refu kwekupisa
Zvinosungirwa UL 746B TI 105°C, kuyedzwa kwewaya inopenya pa850°C, CTI 600 rating, uye kuramba kwearc ≥ 120 s.
(d) Kutevedzera Mutemo & Kuisa Plating
Inofanira kunge iine zvitupa zve UL 94 V-0, RoHS, REACH, CE, CQC, uye UL scope. Current-Bar Plating inofanira kunge iri Sn ≥ 2 μm, Ag 0.1 μm ine mukana wekusonerwa chikamu 3.