IiModyuli ze-Photovoltaic 'Iziqendu eziphambili kunye neMathiriyeli eRaw

1. Iiseli ze-silicon kwiimodyuli ze-photovoltaic

I-silicon cell substrate imathiriyeli yi-P-uhlobo lwesilicon ye-monocrystalline okanye i-polysilicon, ngesixhobo esikhethekileyo sokusika isilicon ye-silicon okanye intonga yesilicone ye-silicon isikwe kubunzima obumalunga ne-180μm yesilicon, kwaye emva koko ngothotho lweenkqubo zokuvelisa.

a. Iiseli ze-silicon zezona zixhobo ziphambili kumacandelo ebhetri, iiseli ze-silicon ezifanelekileyo kufuneka zibe nezi mpawu zilandelayo

I-1.Inozinzo kunye nokusebenza kakuhle kokuguqulwa kwe-photoelectric kunye nokuthembeka okuphezulu.

I-2.I-teknoloji ye-diffusion ephuculweyo isetyenziselwa ukuqinisekisa ukufana kwempumelelo yokuguqulwa kuyo yonke ifilimu.

I-3.I-teknoloji ye-PECVD ehamba phambili yokwenza ifilimu isetyenziselwa ukugubungela umphezulu webhetri ngefilimu emnyama ye-silicon nitride anti-reflection film, ukwenzela ukuba umbala ufanane kwaye uhle.

4.Sebenzisa umgangatho ophezulu wesilivere kunye nesilivere ye-aluminium yensimbi yokunamathisela ukwenza i-back field kunye ne-electrode yomgca wesango ukuqinisekisa ukuhanjiswa kombane okulungileyo, ukubambelela okuthembekileyo kunye ne-electrode weldability.

I-5.Imifanekiso yokushicilela isikrini esiphezulu esichanekileyo kunye ne-flatness ephezulu, okwenza ibhetri ibe lula kwi-welding ngokuzenzekelayo kunye nokusika kwe-laser.

b. Umahluko phakathi kwe-silicon ye-monocrystalline kunye neeseli ze-silicon ze-polycrystalline

Ngenxa yomahluko kwinkqubo yokuqala yokuveliswa kweeseli ze-silicon ze-monocrystalline kunye neeseli ze-silicon ze-polycrystalline, zinomohluko othile ukusuka kwimbonakalo ukuya ekusebenzeni kombane. Ukusuka kwindawo yokujonga, iikona ezine ze-silicon ye-monocrystalline i-arc iikona ezilahlekileyo, kwaye akukho mzekelo phezu komhlaba; Iikona ezine ze-polycrystalline silicon cell zi-square corners, kwaye umphezulu unepateni efana neentyatyambo zomkhenkce. Umbala womphezulu weseli ye-silicon ye-monocrystalline ngokubanzi unombala oluhlaza okwesibhakabhaka, kwaye umbala ongaphezulu we-polycrystalline silicon cell uhlala uluhlaza okwesibhakabhaka.

2. Iglasi yephaneli

Iglasi yephaneli esetyenziswa yiimodyuli ye-photovoltaic yintsimbi ephantsi ultra-white suede okanye iglasi epholileyo egudileyo. Ubukhulu ngokubanzi yi-3.2mm kunye ne-4mm, kwaye iglasi epholileyo ye-5 ~ 10mm ubukhulu ngamanye amaxesha isetyenziselwa ukwakha amacandelo ebhetri. Ngaphandle kobunzima, ukuhanjiswa kuyafuneka ukuba kube ngaphezulu kwe-91%, uluhlu lwe-spectral wavelength yi-320 ~ 1100nm, kunye nokukhanya kwe-infrared okukhulu kune-1200nm kunokubonakala okuphezulu.

Intsimbi ephantsi kakhulu emhlophe ithetha ukuba umxholo wentsimbi wale glasi ungaphantsi kuneyeglasi eqhelekileyo, kwaye umxholo wentsimbi (i-iron oxide) ungaphantsi kwe-150ppm, ngaloo ndlela ukwandisa ukuhanjiswa kokukhanya kweglasi. Ngexesha elifanayo, ukusuka kumda weglasi, le glasi nayo imhlophe kuneglasi eqhelekileyo, eluhlaza ukusuka kumda.

3. Ifilimu ye-Eva

Ifilimu ye-EVA yi-copolymer ye-ethylene kunye ne-vinyl acetate grease, ifilimu ye-thermosetting i-adhesive eshushu inyibilika, i-non-adhesive kwiqondo lobushushu begumbi, emva kweemeko ezithile zoxinzelelo olushushu ziyakwenzeka ukunyibilika kwe-bonding kunye ne-crosslinking curing, ibe sobala ngokupheleleyo, yinto yangoku.Imodyuli yephaneli yelanga ukupakishwa kusetyenziso oluqhelekileyo lwezinto zokudibanisa. Iingqimba ezimbini zefilimu ye-EVA zongezwa kwindibano yeseli yelanga, kwaye iileya ezimbini zefilimu ye-EVA zenziwe ngesandwicz phakathi kweglasi yepaneli, ishidi lebhetri kunye nefilimu ye-backplane ye-TPT ukudibanisa iglasi, i-battery sheet kunye ne-TPT kunye. Inokuphucula ukuhanjiswa kokukhanya kweglasi emva kokudibanisa neglasi, idlale indima ekuchaseni i-reflection, kwaye ibe nefuthe lokufumana amandla ombane wemodyuli yebhetri.

4. Imathiriyeli ye-backplane

Ngokuxhomekeke kwiimfuno zamalungu ebhetri, imathiriyeli ye-backplane inokukhethwa ngeendlela ezahlukeneyo. Ngokubanzi iglasi epholileyo, i-plexiglass, i-aluminium alloy, ifilimu edibeneyo ye-TPT kunye nokunye. I-backplane yeglasi epholileyo isetyenziselwa ukuveliswa kwezinto zokwakha ezicacileyo eziphindwe kabini zohlobo lweemodyuli zebhetri, kwiindonga zamakhethini e-photovoltaic, uphahla lwe-photovoltaic, njl., ixabiso liphezulu, ubunzima becandelo bukhulu. Ukongeza, eyona isetyenziswa kakhulu yi-TPT inwebu edibeneyo. Uninzi lwezigqubuthelo ezimhlophe eziqhele ukubonwa ngasemva kwizixhobo zebhetri ziifilimu ezidibeneyo. Ngokuxhomekeke kwiimfuno zokusetyenziswa kwecandelo lebhetri, inwebu ye-backplane inokukhethwa ngeendlela ezahlukeneyo. I-membrane ye-backplane yahlulwe kakhulu ibe ngamacandelo amabini: i-backplane equkethe i-fluorine kunye ne-backplane engena-fluorine. I-backplane equlethe i-fluorine yahlulwe yangamacala amabini aqulethe i-fluorine (njenge-TPT, i-KPK, njl.) kunye necala elinye eliqulethe i-fluorine (njenge-TPE, i-KPE, njl.); I-backplane engena-fluorine yenziwe ngokudibanisa iileya ezininzi ze-PET adhesive. Okwangoku, ubomi benkonzo yemodyuli yebhetri bufuneka ukuba bube yiminyaka engama-25, kwaye i-backplane, njengento yokupakisha ye-photovoltaic ngokuthe ngqo kwimo engqongileyo yangaphandle, kufuneka ibe nokumelana nokuguga kwexesha elide (ubushushu obumanzi, ukushisa okomileyo, i-ultraviolet). ), ukuxhathisa ukugquma kombane, umqobo womphunga wamanzi kunye nezinye iimpawu. Ngoko ke, ukuba ifilimu ye-backplane ayikwazi ukuhlangabezana novavanyo lokusingqongileyo lwecandelo lebhetri iminyaka engama-25 ngokwemiqathango yokumelana nokuguga, ukunyanzeliswa kwe-insulation, kunye nokumelana nokufuma, ekugqibeleni kuya kukhokelela ekuthembekeni, ukuzinza kunye nokuqina kweseli yelanga ayinakuba. iqinisekisiwe. Yenza imodyuli yebhetri kwindawo eqhelekileyo yemozulu ye-8 ukuya kwi-10 iminyaka okanye kwiimeko ezikhethekileyo zokusingqongileyo (iplateau, isiqithi, i-wetland) phantsi kokusetyenziswa kweminyaka emi-5 ukuya kwe-8 iya kubonakala i-delamination, i-crack, igwebu, i-yellowing kunye nezinye iimeko ezimbi, okubangelwa kwimodyuli yebhetri ewayo, ukutyibilika kwebhetri, ukucutha amandla okuphuma kwebhetri kunye nezinye izinto; Yintoni eyingozi ngakumbi kukuba icandelo lebhetri liya ku-arc kwimeko ye-voltage ephantsi kunye nexabiso langoku, elibangela ukuba inxalenye yebhetri itshise kwaye ikhuthaze umlilo, okubangela umonakalo wokhuseleko lwabasebenzi kunye nomonakalo wepropati.

5. Isakhelo seAluminiyam

Izinto zesakhelo zeimodyuli yebhetri ubukhulu becala yi-aluminium alloy, kodwa kunye nentsimbi engatyiwa kunye neplastiki eyomeleziweyo. Imisebenzi ephambili yesakhelo sokufakela inxalenye yebhetri yile: okokuqala, ukukhusela iglasi yecala lecandelo emva kokulanyiswa; Okwesibini kukudityaniswa komphetho we-silicone ukuqinisa ukusebenza kokutywinwa kwecandelo; Okwesithathu kukuphucula kakhulu amandla omatshini emodyuli yebhetri; Okwesine kukuququzelela ukuthuthwa kunye nokufakwa kwezinto zebhetri. Ingaba imodyuli yebhetri ifakwe ngokwahlukileyo okanye yenziwe nge-photovoltaic array, kufuneka ilungiswe kunye ne-bracket yemodyuli yebhetri kwisakhelo. Ngokuqhelekileyo, imingxuma iqhutywe kwindawo efanelekileyo yesakhelo, kwaye inxalenye ehambelanayo yenkxaso iphinda iqhutywe, kwaye emva koko uxhulumaniso luqiniswe ngamabholiti, kwaye icandelo liphinde lilungiswe yibhloko ekhethekileyo yokucinezela.

6. Ibhokisi yokuhlangana

Ibhokisi yokudibanisa licandelo elidibanisa umgca wokuphuma kwangaphakathi wecandelo lebhetri kumgca wangaphandle. Iibhasi zebhasi ezintle kunye nezibi (iintsimbi ezibanzi zokudibanisa) ezitsalwe kwiphaneli zingena kwibhokisi yokuhlangana, iplagi okanye i-solder kwindawo ehambelana nayo kwibhokisi yokuhlangana, kunye nezikhokelo zangaphandle zikwadibaniswa nebhokisi le-junction ngokuplagi, i-welding kunye ne-screw crimping. Ibhokisi le-junction likwabonelelwa ngendawo yokufakela i-bypass diode okanye i-bypass diode ifakwe ngokuthe ngqo ukubonelela ngokhuseleko lwe-bypass kumacandelo ebhetri. Ukongeza kule misebenzi ingentla, ibhokisi yesiphambuka kufuneka kwakhona icuthe usetyenziso lwayo lwamandla emveliso yecandelo lebhetri, inciphise ifuthe lokufudumeza kwayo kuguqulo olusebenzayo lwecandelo lebhetri, kwaye yandise ukhuseleko kunye nokuthembeka kwebhetri. icandelo.

7. Ibha yoqhagamshelo

Ibar yoqhagamshelo ikwabizwa ngokuba yi-tin-coated copper strip, i-tin-coated strip, kunye nebar yoqhagamshelo ebanzi ikwabizwa ngokuba yibha yebhasi. Lukhokelo olukhethekileyo lokudibanisa ibhetri kwibhetri kwindibano yebhetri. Isekelwe kumgca wobhedu ococekileyo, kwaye umgangatho wobhedu uhlanganiswe ngokulinganayo kunye noluhlu lwe-solder. Umcu wobhedu ngumxholo wobhedu we-99.99% ye-oksijini esimahla yobhedu okanye ubhedu, izixhobo zokugquma i-solder zahlulwe zibe yi-solder ekhokelayo kunye ne-lead-free solder ezimbini, ubukhulu becala elinye le-0.01 ~ 0.05mm, indawo yokunyibilika ye-160 ~ 230 ℃, ifuna ukutyabeka okufanayo, umphezulu oqaqambileyo, ogudileyo. Iimpawu zebar yoqhagamshelwano zingaphezu kweentlobo ezingama-20 ngokobubanzi kunye nobukhulu bazo, ububanzi bunokuba ukusuka kwi-0.08mm ukuya kwi-30mm, kwaye ubukhulu bunokuba ukusuka kwi-0.04mm ukuya kwi-0.8mm.

8. Ijeli ye-silica ye-Organic

I-rubber ye-Silicone luhlobo lwezinto ezitywinwe kunye nesakhiwo esikhethekileyo, kunye nokumelana nokuguga okulungileyo, ukumelana nokushisa okuphezulu kunye nokuphantsi, ukuchasana kwe-ultraviolet, i-anti-oxidation, i-anti-impact, i-anti-fouling kunye ne-waterproof, i-insulation ephezulu; Isetyenziselwa ikakhulu ukutywina isakhelo samalungu ebhetri, ukudityaniswa kunye nokutywinwa kweebhokisi zesiphambuka kunye nezixhobo zebhetri, ukugalelwa kunye nokugalela iibhokisi zokuhlangana, njl njl. ukukwazi ukukhubazeka phantsi kwesenzo samandla angaphandle, kwaye ubuyela kwimo yangaphambili emva kokususwa ngamandla angaphandle. Ngoko ke, iImodyuli yePVivalwe nge-silicone ye-organic, eya kuba nemisebenzi yokutywina, i-buffering kunye nokukhusela.