Me yasa BC Solar Cells ke buƙatar manne mai rufe baya?

Amsa mai sauri: Kwayoyin da ke da alaƙa da baya suna buƙatar manne mai hana wuta yayin yin igiya inda kwayar al'ada ba ta buƙata. Dalili shi ne tsarin baya: a kan kwayar BC duka lambobin polarity biyu suna haɗe a baya, don haka haɗin solder da ke kusa da juna suna ɗauke da polarity daban-daban kuma suna zaune kusa da juna. Ba tare da wani Layer mai hana wuta a tsakaninsu ba, ribbon ko fillet ɗin solder da ke haɗa gibin yana haifar da gajeriyar hanya. A kan kwayar da ke gaba, polarity biyun suna rabuwa ta jiki da faɗin kwayar gaba ɗaya, don haka ba a buƙatar manne. Ana shafa manne a wurare da aka ayyana a baya kafin ko yayin yin igiya, kuma daidaiton wurin da ake sa shi yana da muhimmanci kamar ƙimar sa ta hana wutar lantarki, domin manne a wurin da bai dace ba yana tsoma baki cikin haɗin. Wannan yana ɗaya daga cikin dalilan da ya sa injin igiya na kwayar da ke da alaƙa da baya ya zama inji daban maimakon saiti a kan na al'ada.

PV Module Manufacturing · na Jerry, Ooitech

Asirin Bayan Manne a Kan Ƙwayoyin BC

Ƙwayoyin hasken rana na yau da kullun yawanci ba sa buƙatar manne yayin walda. Don haka me yasa ƙwayar BC ke da wannan ƙarin matakin manne?

Gaskiya ya danganta ne kawai da tsarinsa na musamman. BC na nufin Back Contact Cell. Ainihin, duka madaidaitan da marasa kyau suna a bayan ƙwayar. Yanzu ya zama mai ma'ana, ko? Manne mai rufe wutar lantarki yana nan don hana madaidaitan da marasa kyau su haɗu da juna da haifar da gazawar lantarki. Babu shakka, dole ne a shafa wannan manne. Hakanan yana buƙatar isasshen faɗi don rufe faɗin ribbon ɗin walda gaba ɗaya.

A yanzu, masana'antar tana sarrafa wannan tsarin mannewa ta hanyoyi biyu. Na farko, mai kera cell zai iya shafa shi kafin aikawa. Wannan yana amfani da mannewa wanda ya cika sosai wanda ke daɗe a ajiya. Na biyu, masana'antar module na iya ƙara kayan aikin mannewa zuwa layin samarwa. Suna siyan BC cells marasa cikakkiya kuma suna shafa mannewa marar cikakkiya domin yana tafiya kai tsaye zuwa haɗin module.

Domin fasahar BC ba ita ce babbar hanyar da aka fi amfani da ita ba tukuna, kuma manyan kamfanoni kamar LONGi da Aiko ba safai suke sayar da cikakkiyar A-grade BC cells a kasuwa ba, muna ganin ƙwararrun masana'antun mannewa na ɓangare na uku suna fitowa.

Duba Kusa da Tsarin Haɗin Interleaved

Mutane da yawa suna tunanin bayan BC cell kawai ya raba manyan busbars masu kyau da marasa kyau. Abin da suke rasa shi ne cewa layukan siraran a kwance (fingers) suma suna haɗe da sassan masu kyau da marasa kyau, kamar yadda zane ya nuna a ƙasa.

Misalin BC Cell na Gaskiya

Ina da BC cell a nan, don haka bari mu duba shi tare. Kana iya ganin abubuwa biyu a fili: ainihin wurin mannewar insulating, da kuma yadda negative fingers ke tattara wutar lantarki zuwa negative main busbar yayin da positive fingers ke yin haka ga positive busbar.

Idan ka tsallake manne na rufewa a nan, ribbon ɗin saida zai taɓa dukkan sandunan biyu yayin aikin tabber stringer kuma ya gajarta dukan abin.

Ra'ayin Ooitech

Yin aiki da BC cells yana canza wasan gaba ɗaya ga layukan haɗa modules saboda waɗannan back contacts masu haɗe-haɗe ba su bar wurin kuskure ba a soldering. Muna ganin ƙarin masana'antun modules suna haɗa injinan manne na musamman kafin tabber stringer don sarrafa semi-finished cells da sarrafa farashin samarwa na kansu. Haɓaka zuwa fasahar xBC yana nufin kayan aikin ka na buƙatar daidaito mai tsanani don guje wa haɗarin lantarki. Kana iya ganin yadda layukan samar da hasken rana na zamani ke sarrafa waɗannan matakan ƙera na musamman ta hanyar duba tashar mu ta YouTube a www.youtube.com/ooitech.