MC4 Junction Box — Chaw nres tsheb fais fab "Txhawb Lub Luag Haujlwm"

Tuam Tshoj tus tshiab tsim photovoltaic muaj peev xwm tau ranked thawj nyob rau hauv lub ntiaj teb no rau rau xyoo sib law liag, thiab cov nqi tau poob mus ntxiv raws li qhov ntsuas txuas ntxiv mus.Parity Internet nkag mus tau maj mam nce.Nyob rau hauv "tsis muaj nyiaj tau los era", refined tswj ntawm lub hwj chim chaw nres tsheb tau dhau los ua kev pom zoo ntawm kev lag luam.Ntxiv rau cov "protagonists" xws li photovoltaic modules thiab photovoltaic inverters, lub luag haujlwm ntawmMC4 connectorsthiab MC4 junction boxes tsis tuaj yeem tsis quav ntsej.

        MC4 hlws ris boxyog qhov me me hauv cov chaw nres tsheb fais fab photovoltaic.Tus nqi lag luam tam sim no yog kwv yees li 20-25 yuan / thooj, uas tsuas yog kwv yees li 2.7% ntawm tus nqi ntawm photovoltaic modules, thiab suav txog tsawg dua 1% ntawm tag nrho cov chaw nres tsheb fais fab.Nws yog ib qho me me, tab sis nws ua lub luag haujlwm tseem ceeb hauv kev nyab xeeb ntawm photovoltaic fais fab nroj tsuag.Yog tias muaj teeb meem nrog cov khoom zoo, lub chaw nres tsheb fais fab yuav ntsib kev pheej hmoo loj.

Kev lag luam yog lub ntiaj teb, thiab lub thawv me me kuj tseem yog qhov tseem ceeb ntawm kev lag luam photovoltaic.Tom qab ua kev cai raus dej ntawm "tus nqi ua tsov ua rog" thiab "kev siv thev naus laus zis", qhov kev lag luam mc4 txuas mus rau yav tom ntej yuav nyob qhov twg?

Lub "Bodyguard" ntawm Photovoltaic Modules

Lub mc4 hlws ris lub thawv feem ntau muaj ob txoj haujlwm: qhov yooj yim muaj nuj nqi yog txuas rau photovoltaic module thiab cov khoom thauj, thiab xa tawm cov hluav taws xob hluav taws xob tsim los ntawm photovoltaic module los ntawm cable.Qhov kev ua haujlwm ntxiv yog los tiv thaiv cov khoom, uas ua raws li kev tiv thaiv bypass thaum qhov kub kub tshwm sim.Yog li ntawd, lub thawv photovoltaic hlws ris tseem hu ua lub cev tiv thaiv ntawm photovoltaic modules.

Txawm li cas los xij, kev tshawb fawb qhia tau hais tias nyob rau hauv tag nrho cov chaw nres tsheb fais fab kev ua txhaum thiab kev raug mob, cov xwm txheej tshwm sim los ntawm junction boxes thiab connectors accounted rau ntau tshaj 30%, thiab kev tawg ntawm mc4 junction box diodes accounted rau ntau tshaj 65% ntawm junction box thiab connector xwm txheej.Cov cheeb tsam uas muaj qhov xwm txheej loj ntawm kev ua txhaum.Qhov no kuj tau nyiam qee cov neeg siv cov lus tsis txaus siab txog qhov zoo ntawm lub thawv sib txuas.

Wang Yu, tus thawj tswj hwm tus thawj tswj hwm ntawm Zhejiang Fosalang Energy Co., Ltd., uas tau tsom mus rau mc4 hlws ris lub thawv kev lag luam tau ntau xyoo, ntseeg tias feem ntau cov neeg siv muaj kev nkag siab tsis zoo txog cov thawv sib txuas.Lub diode yog ib qho tseem ceeb ntawm lub thawv sib txuas.Feem ntau, lub diode nyob rau hauv lub xeev tawm, thiab lub diode yuav tsum tau qhib tsuas yog thaum cov khoom muaj qhov kub.

Wang Yu tau piav qhia ntxiv tias hauv kev tsim kho ntawm photovoltaic modules, ib lub xov tooj ntawm tes ua haujlwm hauv series.Thaum ib qho ntawm cov roj teeb hlais raug thaiv, lub roj teeb cuam tshuam yuav tsis ua haujlwm li lub zog hluav taws xob, tab sis yuav dhau los ua tus neeg siv khoom siv hluav taws xob.Lwm cov roj teeb uas tsis tau thaiv yuav txuas ntxiv mus dhau los ntawm lawv, ua rau lub zog poob siab, thiab "qhov kub" yuav tshwm sim.tshwm.Thaum cov nyhuv kub kub nce mus txog ib theem, nws yuav txo tau lub zog tso tawm ntawm cov khoom thiab txawm tias ua rau cov khoom pov tseg, txo cov kev pab cuam lub neej ntawm cov khoom, thiab ua rau muaj kev phom sij rau lub zog tsim kev nyab xeeb ntawm lub chaw nres tsheb fais fab. .

Txhawm rau zam qhov teeb meem no, bypass diodes txuas nrog rau tib lub sijhawm los yog ob peb lub roj teeb txuas nrog hauv series.Lub bypass tam sim no yuav bypass lub ntxoov ntxoo ntawm tes thiab dhau los ntawm diode.Yog li txhawm rau xyuas kom meej tias qhov chaw nres tsheb photovoltaic txuas ntxiv tsim hluav taws xob.Yog hais tias lub diode tau dhau los thiab tawg, nws "saib" nws tus kheej los tiv thaiv cov khoom.

Kev txo nqi thiab kev ua tau zoo ntawm MC4 Junction Boxes

"Txo cov nqi thiab nce efficiency" tau dhau los ua lub ntsiab lus tseem ceeb ntawm kev lag luam photovoltaic saw.Raws li qhov me me ntawm pv hlws ris lub thawv muaj kev txhawj xeeb, tus yuam sij kom txo tus nqi thiab nce kev ua tau zoo nyob hauv nws cov ntsiab lus tseem ceeb-diode.

Kev faib tawm ntawm mc4 junction boxes ntawm kev ua lag luam yog nyob ntawm ntau hom, thiab Fraser siv diodes raws li qhov sib txawv ntawm junction box hom thiab feem ntau lees paub.Wang Yu tau qhia tias thawj tiam cov khoom lag luam yog axial diode, thiab cov khoom thib ob yog SMD diode, uas kuj yog hom siv dav tshaj plaws hauv kev ua lag luam tam sim no.Lub cim thib peb yog module diode, thiab lub cim thib plaub yog cov khoom ntse.

Feem ntau hais lus, muaj ob kauj ruam los txo cov nqi thiab nce kev ua haujlwm.Thawj kauj ruam yog los txo qhov kev nqis peev thawj zaug.Muab piv rau tiam thib ob thiab thib peb tiam mc4 hlws ris lub thawv khoom, SMD diode hlws ris lub thawv yog tsim los ntawm peb diodes thiab 4 tooj liab los xij, thaum lub module diode yog tsim los ntawm ib qho module, uas txo cov nqi ntawm cov khoom siv thiab phau ntawv vuam cov nqi.Nrog rau kev nthuav dav ntawm cov nplai ntau lawm, tus nqi kom zoo dua ntawm cov khoom thib peb yuav dhau los ua qhov tseem ceeb.

Tom qab tus nqi tau maj mam txo qis, txhob txwm rho tawm los txo tus nqi yuav ua rau muaj kev puas tsuaj rau 25 xyoo kev ua haujlwm ntawm qhov chaw nres tsheb photovoltaic.Lub sijhawm no, ntau lub tuam txhab pib ua txoj hauv kev "ua kom muaj txiaj ntsig zoo" thiab tsim cov khoom tshiab los ntawm kev tsim kho thev naus laus zis.Txawm hais tias tus nqi pib nce ntxiv, tus nqi hluav taws xob tuaj yeem txo qis los ntawm kev ua kom muaj peev xwm tsim hluav taws xob nyob rau theem tom ntej.

Qhov thib plaub-tiam ntse mc4 hlws ris lub thawv khoom ntawm Fusalang yog riam phom zais cia ntawm "nce kev ua tau zoo".Raws li Wang Yu, cov khoom lag luam ntse junction box muaj cov ntse nti sab hauv uas tuaj yeem saib xyuas kev ua haujlwm ntawm txhua qhov khoom, ua tau raws li qhov yuav tsum tau muaj ntawm kev saib xyuas theem, pom cov teeb meem ntxov, txo qis kev tsim hluav taws xob, thiab nce lub zog tsim tag nrho.Thaum lub zog tsim hluav taws xob ntau dua los sis tseem tshaj tus nqi pib, kev lag luam ntawm nplai yuav pom meej.

Nrog rau kev txhim kho txuas ntxiv ntawm kev txawj ntse photovoltaic, cov thawv sib txuas ntse yuav yog cov qauv dav dav ntawm kev txhim kho yav tom ntej ntawm mc4 hlws ris thawv.Tom qab xyoo 2020, cov phiaj xwm ntse-raws li lub zog hauv Internet hlws ris lub thawv cov khoom yuav ua rau kev txhim kho.

Lub Hom Phiaj Cov nyhuv ntawm Junction Box tshwm

Homogeneous kev sib tw nqi qis zoo li yog tib txoj hauv kev rau kev txhim kho txhua qhov kev ua neej hauv peb lub tebchaws.Tib yam muaj tseeb hauv kev lag luam photovoltaic.Seb nws yog photovoltaic modules, photovoltaic inverters los yog stents, cov khoom homogeneity tau dhau los ua ib qho tshwm sim, thiab cov subdivision ntawm photovoltaic hlws ris thawv yog tsis muaj kev zam.

Raws li Wang Yu lub nco qab, nyob rau hauv 2007-2008, tus nqi ntawm lub German hom mc4 hlws ris lub thawv yog hais txog 200 yuan, uas yog ib tug momentary yeeb yam.Nws yog qhov tseeb vim yog kev ntxias ntawm cov lag luam loj loj thiab cov thev naus laus zis qis uas cov tuam txhab suav me thiab nruab nrab yog swarming mus txeeb lub khw.Hauv xyoo 2011, muaj ntau tshaj 100 lub tuam txhab nyob rau hauv kev ua lag luam, thiab nws tau nce mus rau ntau tshaj 200 tom qab.Nws yog nrog los ntawm kev sib tw nqi qis.Nyob rau hauv 2009, tus nqi ntawm photovoltaic hlws ris thawv yog hais txog 100-150 yuan.Los ntawm 2011, tus nqi tau nqis mus txog 50 yuan.Nyob rau hauv 2013, tus nqi ntawm junction boxes poob rau 30-40 yuan.Nws poob mus txog 20 yuan.

Thaum homogeneous kev sib tw nqi qis nce mus txog ib theem, kev sib tsoo yog qhov tsis muaj tseeb.Hauv ob peb xyoos dhau los, kev lag luam photovoltaic tau ntsib cov nthwv dej txias.Tom qab cov ciaj sia taus ntawm cov fittest hauv kev ua lag luam, qee lub tuam txhab maj mam poob lawv qhov kev sib tw thiab thim rov qab.Qee lub tuam txhab tshiab nrog thev naus laus zis, peev, thiab cov channel tau nyem rau hauv kev ua lag luam thiab tau txais ib qho kev sib koom.

Rau cov tswv chaw nres tsheb fais fab, tus nqi ntawm mc4 hlws ris thawv hauv photovoltaic fais fab nroj tsuag yog qhov tsawg, thiab feem ntau ua haujlwm kom tau raws li qhov tsim ntawm lub chaw nres tsheb fais fab, thiab cov khoom uas muaj kev lees paub zoo yog nrov dua.Qhov no yog undoubtedly ib tug muaj zog kev sib tw rau cov tuam txhab uas muag uas tau koom nyob rau hauv zus tau tej cov photovoltaic hlws ris thawv nyob rau hauv thaum ntxov theem thiab tau tsim ib tug scale thiab hom nyhuv.

Nws tau nkag siab tias tam sim no muaj tsawg dua 100 photovoltaic hlws ris lub thawv tuam txhab nyob rau hauv kev ua lag luam.Lub nthwv dej loj ntawm kev lag luam shuffle, qhia tias kev lag luam junction box kev lag luam tab tom txhim kho nyob rau hauv ib qho kev taw qhia.Tam sim no, cov tuam txhab ua lag luam xws li Renhe, Zhonghuan, thiab Fushalang tau tshwm sim hauv kev lag luam, thiab cov qauv ntawm cov khoom lag luam tau maj mam tshwm sim.

Wang Yu ntseeg hais tias kev lag luam photovoltaic hlws ris lub thawv kev lag luam yuav ua rau muaj kev hloov pauv yav tom ntej, thiab cov tuam txhab lag luam mc4 hlws ris yuav nyob twj ywm li ntawm 50 thaum ntawd.Cov tuam txhab no tau kwv yees muab faib ua ob pawg.Ib hom tuam txhab muaj cov channel zoo, thiab lwm hom tuam txhab tso siab rau cov khoom lag luam zoo thiab cov kev pabcuam los tuav lub khw.