MC4 Junction Box——Isikhululo saMandla “Indima exhasayo”

Umthamo we-photovoltaic waseTshayina osanda kufakwa ubekwe kwindawo yokuqala kwihlabathi iminyaka emithandathu ilandelelana, kwaye iindleko ziye zaqhubeka ziwa njengoko isikali siqhubeka sikhula.Ukufikelela kwi-Intanethi ngokulinganayo kuya kusondela ngokuthe ngcembe.“Kwixesha lengeniso ephantsi”, ulawulo olusulungekileyo lwezikhululo zamandla luye lwaba yimvumelwano yoshishino.Ukongeza kwi "protagonists" ezifana neemodyuli ze-photovoltaic kunye ne-photovoltaic inverters, indimaIzihlanganisi zeMC4kunye neebhokisi zokuhlangana zeMC4 azinakungahoywa.

        Iibhokisi zokuhlangana zeMC4zizinto ezincinci kwizikhululo zamandla e-photovoltaic.Ixabiso lemarike yangoku li malunga ne-20-25 yuan / iqhekeza, elibalelwa kuphela malunga ne-2.7% yeendleko zeemodyuli ze-photovoltaic, kunye ne-akhawunti engaphantsi kwe-1% yenkqubo yonke yesitishi samandla.Iyinxalenye encinci enjalo, kodwa idlala indima enkulu ekukhuselekeni kwezityalo zamandla e-photovoltaic.Ukuba kukho ingxaki ngomgangatho wemveliso, isikhululo samandla siya kujongana nemingcipheko enkulu.

Ishishini lihlabathi, kwaye ibhokisi encinci ye-junction nayo i-epitome ye-photovoltaic industry.Emva kobhaptizo "lwemfazwe yexabiso" kunye "ne-technical iteration", imboni yebhokisi ye-mc4 iya kuhamba phi kwixesha elizayo?

"I-Bodyguard" yeeModyuli ze-Photovoltaic

Ibhokisi ye-mc4 ye-junction ikakhulu inemisebenzi emibini: umsebenzi osisiseko kukudibanisa imodyuli ye-photovoltaic kunye nomthwalo, kunye nokuthumela ngaphandle kwamandla ombane owenziwe yimodyuli ye-photovoltaic ngekhebula.Umsebenzi owongezelelweyo kukukhusela amacandelo, asebenza njengokhuselo lwe-bypass xa kwenzeka umphumo oshushu.Ngoko ke, ibhokisi ye-junction ye-photovoltaic ikwabizwa ngokuba ngumlindi weemodyuli ze-photovoltaic.

Nangona kunjalo, uphando lubonisa ukuba kuzo zonke iziphene zezikhululo zamandla kunye neengozi, iingozi ezibangelwa iibhokisi ze-junction kunye neziqhagamshelo zibalelwa ngaphezu kwe-30%, kunye nokuchithwa kwe-mc4 ye-junction box diode kubalwe ngaphezu kwe-65% yeengozi zebhokisi ze-junction kunye ne-connector.Iindawo ezinezehlo eziphezulu zeempazamo.Oku kuye kwatsala izikhalazo zabanye abasebenzisi malunga nomgangatho webhokisi yokuhlangana.

U-Wang Yu, usekela-mphathi jikelele we-Zhejiang Fosalang Energy Co., Ltd., oye wagxila kwimboni yebhokisi ye-mc4 iminyaka emininzi, ukholelwa ukuba abaninzi abasebenzisi banokungaqondi malunga neebhokisi ze-junction.I-diode yinxalenye ebalulekileyo yebhokisi ye-junction.Ngokuqhelekileyo, i-diode ikwi-off state, kwaye i-diode iya kuvulwa kuphela xa icandelo linendawo eshushu.

Wang Yu wachaza ngakumbi ukuba ekwakhiweni kweemodyuli ze-photovoltaic, iseli enye isebenza ngokulandelelana.Emva kokuba enye yezilayi zebhetri ivaliwe, ibhetri echaphazelekayo ayisayi kusebenza njengomthombo wamandla, kodwa iya kuba ngumsebenzisi wamandla.Ezinye iibhetri ezingavaliweyo ziya kuqhubeka zidlula ngoku kuzo, zibangele ukulahleka kwamandla aphezulu, kwaye "iindawo ezishushu" ziya kwenzeka.vela.Xa isiphumo sendawo eshushu sifikelela kwinqanaba elithile, siya kunciphisa amandla aphuma kumacandelo kwaye sibangele ukuba amacandelo alahlwe, ukunciphisa kakhulu ubomi benkonzo yamacandelo, kwaye kubangele iingozi ezifihlakeleyo kukhuseleko lokuvelisa umbane kwisikhululo samandla. .

Ukuze ugweme le ngxaki, i-bypass diode idityaniswe ngokuhambelana nebhetri enye okanye ezininzi ezidityaniswe kuthotho.I-bypass yangoku iya kudlula iseli enomthunzi kwaye idlule kwi-diode.Ukuqinisekisa ukuba isikhululo samandla ephotovoltaic siyaqhubeka nokuvelisa umbane.Ukuba i-diode igxininisekile kwaye iphukile, "iyazincama" ngokwayo ukukhusela amacandelo.

UkuNcitshiswa kweeNdleko kunye noKwandiswa ngokuSebenzayo kwe-MC4 Junction Box

"Ukunciphisa iindleko kunye nokwandisa ukusebenza kakuhle" kuye kwaba ngumxholo oyintloko we-photovoltaic industry chain.Ngokumalunga nenxalenye encinci yebhokisi ye-pv junction, isitshixo sokunciphisa iindleko kunye nokunyusa ukusebenza kakuhle silele kwi-core component-diode.

Ukuhlelwa kweebhokisi ze-mc4 ezidityanisiweyo kwimarike zisekwe kwiintlobo ezahlukeneyo, kwaye iFraser isebenzisa iidiode njengomahluko phakathi kweentlobo zebhokisi ezidityanisiweyo kwaye ibonwa ngokubanzi.U-Wang Yu wazisa ukuba imveliso yesizukulwana sokuqala yayiyi-axial diode, kwaye imveliso yesizukulwana sesibini yayiyi-diode ye-SMD, eyona nto isetyenziswa kakhulu kwimarike yangoku.Isizukulwana sesithathu yimodyuli diode, kwaye isizukulwana sesine yimveliso ekrelekrele.

Ngokuqhelekileyo, kukho amanyathelo amabini okunciphisa iindleko kunye nokwandisa ukusebenza kakuhle.Inyathelo lokuqala kukunciphisa utyalo-mali lokuqala.Ukuthelekisa isizukulwana sesibini kunye nesizukulwana sesithathu imveliso yebhokisi ye-mc4 ye-junction, ibhokisi ye-SMD diode junction yenziwe ngama-diode amathathu kunye nama-4 amaphepha obhedu, ngelixa i-module diode iqulunqwe yimodyuli enye, eyanciphisa iindleko zempahla kunye neendleko ze-welding manual.Ngokwandiswa komlinganiselo wemveliso, inzuzo yeendleko zeemveliso zesizukulwana sesithathu iya kubalasela ngakumbi.

Emva kokuba iindleko ziye zahla ngokuthe ngcembe, ukuthabatha ngamabom ukunciphisa iindleko kuya kubangela umonakalo ekusebenzeni kweminyaka engama-25 yesikhululo samandla e-photovoltaic.Ngeli xesha, iinkampani ezininzi ziqala ukuthatha indlela "yokwandisa ukusebenza kakuhle" kunye nokuphuhlisa iimveliso ezintsha ngokusungula itekhnoloji.Nangona ixabiso lokuqala linyukile, ixabiso lombane lingancitshiswa ngokunyusa umthamo wokuvelisa umbane kwinqanaba lamva.

Isizukulwana sesine se-smart mc4 yebhokisi yebhokisi yemveliso yeFusalang sisixhobo esiyimfihlo "sokwandisa ukusebenza kakuhle".Ngokutsho kukaWang Yu, imveliso yebhokisi ye-smart junction ine-chip yangaphakathi ehlakaniphile ekwazi ukubeka iliso kwimo yokusebenza yecandelo ngalinye, ukuhlangabezana neemfuno zokubekwa kweliso kwinqanaba lecandelo, ukufumana iingxaki kwangethuba, ukunciphisa ilahleko yokuveliswa kwamandla, kunye nokwandisa ukuveliswa kwamandla ngokubanzi.Xa ukuveliswa kombane okwandisiweyo kunciphisa okanye kude kudlule indleko yokuqala, uqoqosho lwesikali luya kubonakala.

Ngophuhliso oluqhubekayo lwe-photovoltaic intelligence, iibhokisi ze-smart junction ziya kuba yinto eqhelekileyo yophuhliso lwexesha elizayo lweebhokisi ze-mc4 junction.Emva kowama-2020, iimveliso zebhokisi ye-intanethi esekwe kwigridi ehlakaniphile ziya kuzisa uphuhliso.

Isiphumo sophawu lweBhokisi yokuJunction siyavela

Ukhuphiswano lwamaxabiso aphantsi olulinganayo lubonakala lukuphela kwendlela yophuhliso lwazo zonke iinkalo zobomi kwilizwe lethu.Kuyafana nakwishishini le-photovoltaic.Ingaba iimodyuli ze-photovoltaic, i-photovoltaic inverters okanye i-stents, i-homogeneity yemveliso ibe yinto eqhelekileyo, kwaye ulwahlulo lweebhokisi ze-junction photovoltaic akukho nto.

Ngokutsho kwenkumbulo kaWang Yu, ngo-2007-2008, ixabiso lebhokisi lebhokisi le-brand mc4 yaseJamani lalimalunga ne-200 yuan, eyayiyinkazimulo yesikhashana.Kungenxa kanye ngenxa yesilingo samacandelo amakhulu emarike kunye nethekhnoloji ephantsi yetekhnoloji apho amashishini amancinci naphakathi aseTshayina anyakazela ukubamba intengiso.Ngo-2011, bekukho iinkampani ezingaphezulu kwe-100 kwimarike, kwaye inyuke yaya kutsho ngaphezulu kwama-200 emva koko.Ikhatshwa lukhuphiswano lwamaxabiso aphantsi.Ngo-2009, ixabiso leebhokisi ze-photovoltaic junction yayimalunga ne-100-150 yuan.Ngo-2011, ixabiso liye lehla laya kutsho malunga ne-50 yuan.Ngo-2013, ixabiso leebhokisi ze-junction lawela kwi-30-40 yuan.Yehla ukuya malunga neeyuan ezingama-20.

Xa ukhuphiswano lwexabiso eliphantsi olulinganayo lufikelela kwinqanaba elithile, ukutshixiza akunakuphepheka.Kwiminyaka embalwa edlulileyo, imboni ye-photovoltaic idibene nomkhuhlane obandayo.Emva kokusinda kwezona zinamandla kwimarike, ezinye iinkampani ngokuthe ngcembe zaphulukana nokhuphiswano lwazo kwaye zarhoxa.Ezinye iinkampani ezintsha ezinobuchwepheshe, inkunzi, kunye namajelo axinzelelene emarikeni kwaye afumana isabelo esithile.

Kubanikazi bezikhululo zamandla, ixabiso leebhokisi ze-mc4 ze-junction kwizityalo zamandla ze-photovoltaic ziphantsi, kwaye ngokuqhelekileyo zisebenza ukuhlangabezana noyilo lwesikhululo samandla, kunye neemveliso ezinomgangatho oqinisekisiweyo zithandwa kakhulu.Oku ngokungathandabuzekiyo kukukhuphisana okunamandla kwiinkampani eziye zabandakanyeka kwimveliso yeebhokisi ze-photovoltaic junction kwinqanaba lokuqala kwaye zenze isikali kunye nesiphumo sophawu.

Kuyaqondwa ukuba okwangoku kukho iinkampani ezingaphantsi kwe-100 zebhokisi ye-photovoltaic junction kwimarike.I-wave enkulu ye-shuffle yoshishino, ebonisa ukuba ishishini lebhokisi le-junction liphuhla ngendlela enengqondo.Okwangoku, iinkampani eziphambili ezifana neRenhe, Zhonghuan, kunye neFushalang ziye zavela kwishishini, kwaye umkhwa wokuthengisa uye wavela ngokuthe ngcembe.

U-Wang Yu ukholelwa ukuba imboni yebhokisi ye-photovoltaic ye-junction iya kuqalisa ukuhlengahlengiswa kwixesha elizayo, kwaye inani leenkampani zebhokisi ze-mc4 ziya kuhlala malunga ne-50 ngelo xesha.Ezi nkampani zahlulwe ngokweendidi ezimbini.Olunye uhlobo lwenkampani luneetshaneli ezilungileyo, kwaye olunye uhlobo lwenkampani luxhomekeke kwiimveliso ezikumgangatho ophezulu kunye neenkonzo ukuba zithathe indawo yentengiso.