Gabatarwar Samfur

Yawancin injiniyoyin tsari a masana'antun hasken rana za su gaya muku abu ɗaya. A gefen akwatin haɗin, kuna haɗa busbar da ɗigon tagulla kawai, don haka ko haɗin gwiwar sanyi ba zai rushe ko ƙone diode ba.

Yana da kyau a farko, ko? Amma sun rasa wani muhimmin tsari na sarkar. Bari in bayyana muku.

Da farko, menene ainihin haɗin gwiwar sanyi a cikin akwatin haɗin?

Wurin haɗin akwatin junction (soldering na karya) shine lahani inda haɗin lantarki na ciki bai yi ƙarfi ba kuma yana da rashin haɗin gwiwa. Haɗin bai buɗe gaba ɗaya ba. Wurin haɗin yana raguwa kawai, don haka juriyar haɗin gida ta tashi sosai. Lokacin da wutar lantarki ta wuce ta wannan wuri mai juriya, yana haifar da zafi mai yawa na Joule, kuma zafin gida yana hawa da sauri.

Ma'aunin Fasaha

Haɗin sanyi a cikin akwatin junction yawanci yana bayyana a ɗaya daga cikin wurare huɗu: haɗin gubar diode zuwa haɗin jan ƙarfe, haɗin busbar zuwa haɗin jan ƙarfe, wurin haɗin wayar fitarwa, da wuraren haɗin tsakanin jan ƙarfe na ciki, tubalan tin da sauran kayan aiki masu gudanarwa. Waɗannan huɗun sun rabu zuwa rukuni biyu: haɗin sanyi na reshen diode (wuri na ɗaya) da haɗin sanyi na babban madauki (wurare na biyu, uku, huɗu).

Fa'idodin Fasaha

• Diode reshe sanyi solder: A cikin aiki mai ƙarfi ba tare da inuwa da wuri mai zafi ba, babu wani ingantaccen aiki na yanzu a cikin reshe, don haka haɗin baya yin zafi kuma diode yana kasancewa daidai. Amma da zarar wasu sassan sel sun sami inuwa (zubar tsuntsaye, ganyen da suka faɗi, dusar ƙanƙara) ko kuma ka sami ƙananan tsaga da raguwar aiki, bypass diode yana kunna kuma yana aiki na dogon lokaci. Babban wutar lantarki yana gudana ta cikin haɗin sanyi mai juriya, haɗin yana zafi sosai, kuma zafin diode yana tashi. Da zarar ya wuce iyakar zafin diode, bypass diode yana fuskantar lalacewar zafin, kuma akwatin haɗin yana iya ƙonewa.

• Babban madauki sanyi solder: Tsarin yana aiki da cikakken wutar lantarki a duk lokacin da yake samar da wutar, don haka haɗin sanyi yana ci gaba da zafi. Wurin da ke cikin akwatin haɗin yana da ƙunci, kuma wannan zafi yana toya diode na bypass kai tsaye, yana rage juriyar leak ɗinsa da ƙarfin wuce gona da iri. Bugu da ƙari, idan inuwa da wuraren zafi sun faru a lokaci guda, diode ɗin yana samun gaba. Diode ɗin da zafi ya yi laushi yanzu dole ya ɗauki dukkan wutar bypass ɗin, wanda ke haifar da tashin hankali na thermal kuma yana ƙarewa da ƙonewa gaba ɗaya da gajeren keway.

Aikace-aikacen Samfur

Da zarar diode ɗin ya lalace kuma ya ƙone, zai iya ci gaba da haifar da arcing na DC, tare da yanayin zafi har zuwa 3000°C. Wannan a ƙarshe yana ƙone akwatin haɗin kuma yana iya kunna wutar module.

Don haka yayin aikin tashar PV, duba wuraren haɗin sanyi na akwatin haɗin akan lokaci yana da mahimmanci. Kuna iya duba yankin akwatin haɗin da kyamarar thermal infrared. Haɗin sanyi ko diode mai zafi mara kyau zai nuna a matsayin wuri mai zafi mara kyau akan hoton thermal. Gyara ko maye gurbinsa nan da nan kuma kuna dakatar da yaduwar laifin, kiyaye module ɗin yana aiki daidai.

Ra'ayin Ooitech

Abin da wannan ke nuna shi ne cewa amincin akwatin haɗi ana yanke shi tun kafin shukar ta fara aiki, a kan layin samarwa inda ake haɗa waɗancan diode da busbar joints. Raunin soldering a nan ba ya kasawa a yau, yana kasawa bayan shekaru a ƙarƙashin farkon hotspot mara kyau, shi ya sa sarrafa ingancin soldering akan kayan aikin module yake da muhimmanci kamar kowace fasahar cell. A kan layukan module na mu na turnkey muna ɗaukar soldering na akwatin haɗi da bussing a matsayin ma'auni mai wuya, ba abin da aka yi tunani ba. Idan kana son ganin yadda ake haɗa module da soldering da kyau, tashar YouTube www.youtube.com/ooitech tana da hotunan masana'anta na gaske da yawa da suka cancanci kallo.