Photovoltaic Modules 'Pib Cheebtsam thiab Raw Materials

1. Silicon hlwb hauv photovoltaic modules

Silicon cell substrate khoom yog P-hom monocrystalline silicon los yog polysilicon, nws los ntawm cov khoom tshwj xeeb txiav monocrystalline silicon los yog polysilicon silicon pas nrig txiav rau hauv ib lub thickness ntawm li 180μm silicon, thiab tom qab ntawd los ntawm cov txheej txheem ntawm cov txheej txheem los tsim.

a. Silicon hlwb yog cov ntaub ntawv tseem ceeb hauv cov khoom siv roj teeb, tsim nyog silicon cells yuav tsum muaj cov yam ntxwv hauv qab no

1.Nws muaj qhov ruaj khov thiab muaj txiaj ntsig photoelectric hloov dua siab tshiab thiab kev ntseeg siab.

2.Advanced diffusion tshuab yog siv los xyuas kom meej lub uniformity ntawm conversion efficiency thoob plaws hauv zaj duab xis.

3.The advanced PECVD film forming technology yog siv los pleev xim rau saum npoo ntawm lub roj teeb nrog tsaus xiav silicon nitride anti-reflection zaj duab xis, kom cov xim zoo ib yam thiab zoo nkauj.

4.Siv cov nyiaj zoo thiab cov nyiaj aluminium hlau muab tshuaj txhuam kom rov qab teb thiab lub rooj vag kab electrodes kom ntseeg tau tias hluav taws xob zoo, txhim khu kev qha adhesion thiab zoo electrode weldability.

5.High precision screen printing graphics thiab siab flatness, ua lub roj teeb yooj yim rau tsis siv neeg vuam thiab laser txiav.

b. Qhov sib txawv ntawm monocrystalline silicon thiab polycrystalline silicon cells

Vim tias qhov sib txawv ntawm cov txheej txheem tsim tawm thaum ntxov ntawm monocrystalline silicon hlwb thiab polycrystalline silicon cells, lawv muaj qee qhov sib txawv ntawm cov tsos rau kev ua haujlwm hluav taws xob. Los ntawm qhov pom ntawm qhov pom, plaub fab ntawm monocrystalline silicon cell yog arc uas ploj lawm ces kaum, thiab tsis muaj qauv ntawm qhov chaw; Plaub lub ces kaum ntawm polycrystalline silicon cell yog square fab, thiab saum npoo muaj cov qauv zoo ib yam li cov paj dej khov. Cov xim saum npoo ntawm monocrystalline silicon cell feem ntau yog xiav xiav, thiab xim ntawm polycrystalline silicon cell feem ntau yog xiav.

2. Vaj huam sib luag iav

Lub vaj huam sib luag iav siv los ntawmphotovoltaic module yog tsis muaj hlau ultra-dawb suede los yog du tempered iav. Qhov dav dav dav yog 3.2mm thiab 4mm, thiab tempered iav ntawm 5 ~ 10mm thickness yog qee zaum siv rau cov khoom siv hauv tsev roj teeb. Txawm hais tias qhov tuab, qhov kev xa tawm yuav tsum siab dua 91%, cov lus teb spectral wavelength ntau yog 320 ~ 1100nm, thiab lub teeb infrared ntau dua 1200nm muaj qhov cuam tshuam siab.

Tsawg hlau super dawb txhais tau hais tias cov ntsiab lus hlau ntawm lub khob no qis dua li cov iav zoo tib yam, thiab cov ntsiab lus hlau (hlau oxide) tsawg dua 150ppm, yog li ua kom lub teeb xa hluav taws xob ntawm lub iav. Nyob rau tib lub sijhawm, los ntawm ntug ntawm lub khob, lub khob no kuj yog dawb dua li cov iav zoo tib yam, uas yog ntsuab ntawm ntug.

3. EVA zaj duab xis

EVA zaj duab xis yog copolymer ntawm ethylene thiab vinyl acetate grease, yog thermosetting zaj duab xis kub yaj nplaum, tsis nplaum nyob rau hauv chav tsev kub, tom qab tej yam kev mob ntawm kub nias yuav tshwm sim melt bonding thiab crosslinking curing, ua pob tshab, yog tam sim no.Hnub ci vaj huam sib luag module ntim hauv kev siv cov khoom sib txuas. Ob txheej ntawm EVA zaj duab xis yog ntxiv rau lub hnub ci kev sib dhos, thiab ob txheej ntawm EVA zaj duab xis yog sandwiczed ntawm lub iav vaj huam sib luag, daim ntawv roj teeb thiab TPT backplane zaj duab xis los khi cov iav, daim ntawv roj teeb thiab TPT ua ke. Nws tuaj yeem txhim kho lub teeb xa hluav taws xob ntawm lub iav tom qab kev sib txuas nrog cov iav, ua lub luag haujlwm hauv kev tiv thaiv kev xav, thiab muaj txiaj ntsig zoo rau lub zog tso tawm ntawm lub roj teeb module.

4. Cov khoom siv rov qab

Raws li qhov yuav tsum tau ua ntawm cov khoom siv roj teeb, cov khoom siv rov qab tuaj yeem xaiv tau ntau txoj hauv kev. Feem ntau muaj tempered iav, plexiglass, txhuas alloy, TPT puas zaj duab xis thiab hais txog. Tempered iav backplane yog tsuas yog siv rau kev tsim khoom ntawm ob sab pob tshab lub tsev cov ntaub ntawv hom roj teeb modules, rau photovoltaic curtain phab ntsa, photovoltaic ru tsev, thiab lwm yam., tus nqi siab, cov khoom hnyav kuj loj. Tsis tas li ntawd, feem ntau siv yog TPT puas membrane. Feem ntau ntawm cov npog dawb feem ntau pom nyob rau sab nraub qaum ntawm cov khoom siv roj teeb yog cov yeeb yaj kiab sib xyaw. Raws li cov kev xav tau ntawm kev siv roj teeb, lub backplane membrane tuaj yeem xaiv tau ntau txoj hauv kev. Lub backplane membrane feem ntau muab faib ua ob pawg: fluorine-muaj backplane thiab non-fluorine-muaj backplane. Lub nraub qaum uas muaj fluorine yog muab faib ua ob sab uas muaj fluorine (xws li TPT, KPK, thiab lwm yam) thiab ib sab uas muaj fluorine (xws li TPE, KPE, thiab lwm yam); Lub backplane tsis muaj fluorine yog tsim los ntawm kev sib txuas ntau txheej ntawm PET nplaum. Tam sim no, lub neej kev pab cuam ntawm lub roj teeb module yuav tsum yog 25 xyoo, thiab lub backplane, raws li ib tug photovoltaic ntim khoom ncaj qha nyob rau hauv kev sib cuag nrog rau sab nraud ib puag ncig, yuav tsum muaj zoo heev mus sij hawm ntev aging kuj (ntub kub, qhuav tshav kub, ultraviolet). ), hluav taws xob rwb thaiv tsev tsis kam, dej vapor barrier thiab lwm yam khoom. Yog li ntawd, yog hais tias lub backplane zaj duab xis tsis tuaj yeem ua tau raws li qhov kev ntsuam xyuas ib puag ncig ntawm lub roj teeb tivthaiv rau 25 xyoo ntawm kev laus tiv thaiv, rwb thaiv tsev tsis kam, thiab noo noo tsis kam, nws thiaj li yuav ua rau muaj kev ntseeg siab, ruaj khov thiab kav ntev ntawm lub hnub ci cell tsis tuaj yeem ua tau. lav. Ua lub roj teeb module nyob rau hauv ib puag ncig kev nyab xeeb rau 8 mus rau 10 xyoo los yog nyob rau hauv tej yam tshwj xeeb tej yam kev mob ( toj siab, kob, ntub dej) nyob rau hauv kev siv ntawm 5 mus rau 8 xyoo yuav tshwm delamination, tawg, foaming, yellowing thiab lwm yam phem tej yam kev mob, uas yuav tshwm sim. nyob rau hauv lub roj teeb module poob, roj teeb slippage, roj teeb zoo tso zis zog txo thiab lwm yam tshwm sim; Dab tsi yog qhov txaus ntshai tshaj yog tias lub roj teeb tivthaiv yuav arc nyob rau hauv cov ntaub ntawv ntawm qhov tsis tshua muaj hluav taws xob thiab tam sim no tus nqi, ua rau lub roj teeb tivthaiv hluav taws kub hnyiab, ua rau cov neeg ua haujlwm kev nyab xeeb thiab kev puas tsuaj.

5. Aluminium ncej

Cov khoom siv ncej ntawm lubroj teeb module Feem ntau yog aluminium alloy, tab sis kuj stainless hlau thiab cov yas reinforced. Lub luag haujlwm tseem ceeb ntawm lub roj teeb tiv thaiv kev teeb tsa ncej yog: ua ntej, tiv thaiv iav ntug ntawm cov khoom tom qab lamination; Qhov thib ob yog kev sib xyaw ntawm silicone ntug kom ntxiv dag zog rau kev sib khi ntawm cov khoom siv; Qhov thib peb yog los txhim kho tag nrho cov neeg kho tshuab lub zog ntawm lub roj teeb module; Qhov thib plaub yog los pab txhawb kev thauj mus los thiab kev teeb tsa cov khoom siv roj teeb. Txawm hais tias lub roj teeb module tau nruab nyias los yog tsim los ntawm photovoltaic array, nws yuav tsum tau kho nrog lub roj teeb module bracket los ntawm tus ncej. Feem ntau, qhov yog drilled nyob rau hauv qhov tsim nyog ntawm lub thav duab, thiab qhov sib thooj ntawm cov kev txhawb nqa kuj yog drilled, thiab tom qab ntawd qhov kev sib txuas yog tsau los ntawm bolts, thiab cov khoom siv kuj tau kho los ntawm ib qho tshwj xeeb nias thaiv.

6. Lub thawv sib txuas

Lub thawv sib txuas yog ib qho khoom siv uas txuas cov kab hluav taws xob sab hauv ntawm lub roj teeb tivthaiv rau cov kab sab nraud. Lub busbars zoo thiab tsis zoo (ntau dua interconnect bars) kos los ntawm lub vaj huam sib luag nkag mus rau hauv lub thawv hlws ris, ntsaws lossis solder mus rau qhov chaw sib txuas hauv lub thawv sib txuas, thiab cov hlau lead sab nraud kuj txuas nrog lub thawv sib txuas los ntawm kev ntsaws, vuam thiab ntsia hlau crimping. Lub thawv sib txuas kuj tau muab nrog rau txoj haujlwm ntawm lub bypass diode lossis bypass diode ncaj qha ntsia los muab kev tiv thaiv bypass rau cov khoom siv roj teeb. Ntxiv nrog rau cov haujlwm saum toj no, lub thawv sib txuas yuav tsum txo qis nws tus kheej kev siv lub zog ntawm cov khoom siv roj teeb, txo qhov cuam tshuam ntawm nws tus kheej cua sov ntawm kev hloov pauv ntawm cov roj teeb tivthaiv, thiab ua kom muaj kev nyab xeeb thiab kev ntseeg siab ntawm lub roj teeb. tiv thaiv.

7. Interconnection bar

Lub interconnect bar tseem hu ua tin-coated tooj liab strip, tin-coated sawb, thiab qhov dav interconnect bar kuj hu ua lub tsheb npav. Nws yog cov hlau lead tshwj xeeb rau kev txuas lub roj teeb rau lub roj teeb hauv lub roj teeb sib dhos. Nws yog raws li cov tooj liab ntshiab tooj liab sawb, thiab saum npoo ntawm cov tooj liab sawb yog sib npaug nrog ib txheej ntawm solder. tooj liab sawb yog tooj liab cov ntsiab lus ntawm 99.99% oxygen dawb tooj liab lossis tooj liab, cov khoom siv ntawm cov khoom siv tau muab faib ua cov hlau lead thiab cov hlau lead-dawb solder ob, solder ib leeg-sab txheej thickness ntawm 0.01 ~ 0.05mm, melting point ntawm 160 ~ 230 ℃, yuav tsum tau txheej txheej, nto ci, du. Cov specifications ntawm interconnect bar yog ntau tshaj 20 hom raws li lawv qhov dav thiab thickness, qhov dav yuav yog los ntawm 0.08mm mus rau 30mm, thiab thickness yuav yog los ntawm 0.04mm mus rau 0.8mm.

8. Organic silica gel

Silicone roj hmab yog ib yam ntawm cov khoom siv sealant nrog cov qauv tshwj xeeb, nrog kev laus ua haujlwm zoo, siab thiab kub tsis kam, tiv thaiv ultraviolet, tiv thaiv oxidation, tiv thaiv kev cuam tshuam, tiv thaiv fouling thiab waterproof, rwb thaiv tsev siab; Nws yog tsuas yog siv rau kev sib khi lub thav duab ntawm cov khoom siv roj teeb, kev sib txuas thiab kev sib khi ntawm cov thawv sib txuas thiab cov khoom siv roj teeb, nchuav thiab potting ntawm cov thawv sib txuas, thiab lwm yam. muaj peev xwm deform nyob rau hauv qhov kev txiav txim ntawm sab nraud quab yuam, thiab rov qab mus rau qhov qub zoo tom qab raug tshem tawm los ntawm sab nraud quab yuam. Yog li ntawd, lubPV moduleyog kaw nrog cov organic silicone, uas yuav muaj lub luag haujlwm ntawm sealing, buffering thiab tiv thaiv.