Nau'in Tambaya: Bukatun Matsayin Voltage
T: Menene ainihin buƙatun ƙimar ƙarfin lantarki ga capacitors a cikin da'irar DC-Link ta dandamali 800V?
A: Tabbatar da buƙatar ƙimar ƙarfin lantarki shine mataki na farko a zaɓi, amma yana da mahimmanci a fayyace takamaiman yanayin ƙarfin gwaji da adadin tasirin ƙaruwar. A cikin gwajin DV, ana ba da shawarar a koma zuwa ISO 16750-2 ko mizanai makamancin haka, ta amfani da bugun juzu'i biyu na nauyi (kamar juzu'i na kaya) don tabbatar da ƙimar ƙarfin lantarki na capacitor da kwanciyar hankali na ƙarfin lantarki bayan ɗaruruwan irin waɗannan bugun, yana tabbatar da ingancin gefen ƙirarsa.
Nau'in Tambaya: Ƙarfin Ripple
T: A cikin yanayin sauyawa mai yawan mita, capacitors suna buƙatar jure wa kwararar ripple mai yawa. Wace fasaha ce jerin CW3H ke amfani da ita don inganta juriyar ripple current? Ta yaya take aiki a aikace?
A: An cimma ta hanyar ƙirƙirar abu - ta amfani da sabon electrolyte mai ƙarancin asara, rage juriyar jerin daidai gwargwado (ESR), ta haka ne za a ƙara juriyar ripple current zuwa sau 1.3 da aka kimanta ƙimar. Tabbatar da bayanan dakin gwaje-gwaje ya nuna cewa a ninki 1.3 da aka kimanta ƙimar ripple current, hauhawar zafin jiki na wannan jerin capacitors yana da ƙarfi ba tare da raguwar aiki ba. A cikin ƙayyadaddun bayanai na yau da kullun, samfurin 450V 330μF ya cimma ƙimar ripple current na 1.94mA a 120kHz, kuma samfurin 450V 560μF ya cimma 2.1mA, yana biyan buƙatun haƙurin ripple na yanayin sauyawa mai yawa. Ikon ripple yana da tushe zuwa ƙirar mita mai yawa kuma yana buƙatar bayanan injiniya da za a iya tabbatarwa. Yana da mahimmanci a sami ƙimar ripple current (I rms ) da lanƙwasa ɗera don samfurin manufa daga mai samarwa a mafi girman zafin aiki (misali, 105°C) da ainihin mitar sauyawa (misali, 100kHz). A lokacin ƙira, ainihin ripple ɗin aiki ya kamata ya zama ƙasa da kashi 70%-80% fiye da wannan ƙimar don sarrafa hauhawar zafin jiki da tsawaita tsawon rai.
Nau'in Tambaya: Ma'aunin Girma-Ƙarfin Aiki
T: Ta yaya jerin CW3H ke cimma daidaito tsakanin "ƙaramin girma da babban ƙarfin aiki" lokacin da sararin module ya iyakance? Menene tsarin ke tallafawa a samarwa?
A: Rage girma yana nufin yiwuwar ƙaruwar yawan zafi a kowace ƙarar naúrar. A lokacin tsarawa, ana buƙatar kwaikwayon zafi don inganta hanyoyin watsar da iska ko kwararar zafi a kusa da capacitor. A lokaci guda, ƙirar wurin gyarawa don ƙananan capacitors yana buƙatar ƙarin daidaito don hana ƙarin damuwa yayin girgiza. Ana samun wannan ta hanyar ƙirƙirar tsari a ɓangaren ƙira - ta amfani da hanyoyin riveting da lanƙwasa na musamman don inganta tsarin ciki, cimma "ƙarfin da ya fi girma a cikin ƙarar iri ɗaya" ko "kusan rage girma 20% a cikin takamaiman tsari ɗaya." A ɓangaren samarwa, wannan tsari na musamman yana da mahimmanci; misali, ƙayyadaddun 450V 330μF yana buƙatar 25*50mm kawai, kuma ƙayyadaddun 450V 560μF shine 30*50mm, yana rage girma sosai idan aka kwatanta da samfuran gargajiya na takamaiman tsari ɗaya, yana daidaitawa da iyakokin sararin shigarwa na module.
Nau'in Tambaya: Alamomin Tsawon Rai
T: Shin tsawon rai na sa'o'i 3000 a 105℃ ya isa ga ainihin aikace-aikacen mota?
A: Wannan bayanai kaɗai bai isa ba. Zuciya ita ce ainihin zafin aiki na capacitor. Ana buƙatar ƙirar zafi don sarrafa zafin jiki na capacitor a cikin tsarin OBC/DCDC. Misali, idan za a iya sarrafa zafin jiki na tsakiya a 85°C, bisa ga ƙa'idar cewa tsawon rayuwar yana ninka sau biyu a kowace raguwar zafin jiki na 10°C a cikin tsawon rayuwar motar, ainihin tsawon rayuwarta zai wuce awanni 3000, don haka ta cika buƙatun rayuwar abin hawa. Ana ba da shawarar a kafa sarkar sarrafa zafi mai haske: daga lissafin asarar capacitor (I²R) zuwa ƙirar watsar da zafi na module, kuma a ƙarshe, ta hanyar auna zafin jiki na tsakiyar capacitor ko tushen fil ta amfani da thermocouples ko hotunan zafi, tabbatar da cewa zafin aiki na capacitor yana ƙasa da ƙimar manufa (misali, 90°C) a ƙarƙashin mafi girman yanayin zafi da cikakken kaya, don cimma burin rayuwa.
Nau'in Tambaya: Yawan Ƙarfi da Haɗin Tsarin
T: Ta yaya fa'idar rage yawan amfani da kashi 20% idan aka kwatanta da kayayyakin gargajiya ke nunawa a fannin injiniyanci?
A: Lokacin kimanta fa'idar girma, ana buƙatar nazarin fa'idar matakin tsarin, ba kawai maye gurbin sassan ba.
Ana ba da shawarar yin kimantawa mai sauƙi ta "ƙimar sarari": ana iya amfani da sararin da aka adana kashi 20% don ƙara yankin zafi (ana sa ran zai rage hauhawar zafin jiki na module gaba ɗaya da X°C), ko kuma don samar da kariya mafi kyau ga mahimman abubuwan maganadisu, don haka inganta yawan ƙarfin module ko aikin EMC.
Nau'in Tambaya: Tsufa da Kunnawa Ajiya
T: Shin ESR na capacitors na ruwa mai amfani da electrolytic zai lalace bayan rashin aiki na dogon lokaci (kamar a lokacin adana motoci)? Shin ana buƙatar kulawa ta musamman idan aka fara kunna wutar lantarki?
A: "Tsufa a cikin ajiya" yana shafar tsara samarwa, sarrafa kayan abin hawa, da kuma kula da bayan siyarwa.
Baya ga tsarin "pre-forming" don kunnawa ta farko, ya kamata a ƙara tsarin "activation procedure" a tashar gwajin samarwa don kayayyaki waɗanda suka kasance a cikin ajiya sama da watanni 6. Wannan ya haɗa da auna kwararar ruwa da ESR bayan kunnawa, kuma kayayyaki waɗanda suka ci jarrabawar ne kawai za a iya cire su daga layin samarwa ko kuma a kawo su. Wannan buƙatar ya kamata a haɗa ta cikin yarjejeniyar inganci da mai samar da kayayyaki.
Nau'in Tambaya: Tushen Zaɓi
T: Ga aikace-aikacen DC-Link da ke amfani da dandamalin 800V OBC/DCDC, menene tushen ba da shawarar manyan samfuran guda biyu na jerin CW3H? Ta yaya masu zane-zane za su iya zaɓar samfurin da ya dace cikin sauri?
A: Samfuran da aka daidaita na iya rage farashin gudanarwa, amma ya zama dole a tabbatar da cewa sun rufe manyan yanayin aikace-aikacen. Tushen Shawarwari: Dukansu samfuran (CW3H 450V 330μF 25*50mm da CW3H 450V 560μF 30*50mm) sun rufe ainihin buƙatun dandamalin 800V. An tabbatar da mahimman sigogi kamar ƙarfin lantarki, ƙarfin aiki, girma, tsawon rai, da juriyar ripple a cikin dakin gwaje-gwaje, kuma an daidaita girmansu don dacewa da manyan wuraren shigarwa na module.
Manhajar Zaɓi: Masu ƙira za su iya zaɓar samfurin da ya dace kai tsaye bisa ga buƙatun ƙarfin da'ira (330μF/560μF) da kuma sararin shigarwa da aka tanada na module (2550mm/3050mm), ba tare da ƙarin gyare-gyare na tsari ba, yayin da suke cika buƙatun juriya mai ƙarfi, tsawon rai, da inganta farashi a lokaci guda. Bayan ƙarfin lantarki da ƙarfin aiki, da fatan za a kula da mitar amsawa da lanƙwasa mai ƙarfi na samfuran biyu. Don ƙira tare da mitoci masu canzawa mafi girma (misali, >150kHz), ana iya buƙatar ƙarin kimantawa ko keɓancewa tare da mai samarwa. Ana ba da shawarar ƙirƙirar jerin zaɓuɓɓuka na ciki kuma a yi amfani da waɗannan samfuran biyu azaman shawarwarin da aka saba.
Nau'in Tambaya: Amincin Inji
T: A cikin yanayin girgizar mota, ta yaya za a iya tabbatar da kwanciyar hankali na injiniya da amincin haɗin lantarki na capacitors (kamar ƙaho capacitors)?
A: Dole ne a tabbatar da ingancin injina ta hanyar ƙira da sarrafa tsari.
Jagororin ƙira na PCB sun bayyana a sarari cewa ramukan gubar ƙaho dole ne su kasance masu siffar ellipse mai kama da hawaye, kuma dole ne a yi duban X-ray na gidajen haɗin solder bayan haɗa raƙuman ruwa ko haɗa raƙuman ruwa don tabbatar da cewa babu haɗin solder mai sanyi ko fashe-fashe. A cikin gwajin DV, dole ne a sake gwada sigogin lantarki bayan girgiza, ba kawai duba gani ba.
Nau'in Tambaya: Tsarin Tsaro
T: A cikin ƙananan ƙira na module, shin ana iya sarrafa alkiblar rage matsin lamba na bawul ɗin fashewa mai hana capacitor? Ta yaya za a iya guje wa lalacewar da'irorin da ke kewaye idan capacitor ya lalace?
A: Tsarin tsaro yana nuna ikon sarrafa yanayin gazawa kuma dole ne a girmama shi a cikin tsarin gabaɗaya.
Dole ne a yi wa “yankin kariya daga matsin lamba” na bawul ɗin da ke hana fashewa na capacitor alama a fili a kan samfurin 3D da kuma zanen haɗakar na'urar. Ba a yarda da igiyoyin waya, mahaɗa, PCBs, ko kayan da ke da saurin kamuwa da zafi/fashewa a cikin wannan yanki ba. Wannan ƙa'idar ƙira ce ta tilas.
Nau'in Tambaya: Cinikin Kuɗi da Aiki
T: A ƙarƙashin matsin lamba na farashi, ta yaya ya kamata a daidaita capacitors na lantarki mai ƙarfin lantarki da capacitors na fim a aikace-aikacen DC-Link?
A: Cinikin da ake yi tsakanin farashi da aiki yana buƙatar nazarin adadi bisa ga takamaiman manufofin aiki.
Ana ba da shawarar a yi amfani da samfurin LCC mai sauƙi wanda ya haɗa da abubuwa kamar farashin farko, ƙimar gazawar da ake tsammani, farashin lalacewa da ke da alaƙa da shi, farashin garanti, da lalacewar alama don kwatantawa. Ga ayyukan da ke da alaƙa da jimillar farashi a tsawon rayuwarsu ko kuma waɗanda ke da buƙatun sarari mai yawa, manyan capacitors na lantarki kamar CW3H galibi su ne mafi kyawun madadin injiniya fiye da capacitors na fim.
Nau'in Tambaya: Daidaitowar Saurin Caji
T: Lokacin da ake cajin motocin 800V a gida, saurin caji wani lokacin yana canzawa. Shin wannan yana da alaƙa da capacitors na DC-Link a cikin OBC (On-Board Charger)?
A: Kwanciyar hankali na caji alama ce ta aiki a matakin tsarin. Dole ne a gano tushen abin da ke haifar da hakan a matsayin ko dai capacitors ko kuma madaurin sarrafawa.
A cikin gwajin benci, a ƙarƙashin yanayin shigarwa/fitarwa iri ɗaya, gwada kwatanta ƙarfin wutar lantarki na bas bayan maye gurbin capacitors da nau'ikan batches ko brands daban-daban. Idan ripple (musamman a manyan mitoci) ya ƙaru sosai kuma ya haifar da rashin kwanciyar hankali na madauki, ana tabbatar da mahimmancin capacitor. A lokaci guda, duba ko zafin jiki a wurin saka capacitor ya wuce iyaka.
Nau'in Tambaya: Tsaron Cajin Zafi Mai Tsayi
T: A lokacin zafi na lokacin rani, lokacin da ake caji da tashar caji ta gida, yankin caji na cikin jirgin yana yin zafi sosai. Shin wannan yana da alaƙa da juriyar zafin jiki na capacitor na DC-Link? Akwai haɗarin aminci?
A: Dogaro a lokacin zafi mai tsanani shine abin da ake mayar da hankali a kai na gwaji da tabbatarwa, ba wai kawai damuwar ka'ida ba.
A cikin gwajin juriya mai yawan zafin jiki, ban da sa ido kan zafin capacitor, ana ba da shawarar a ƙara sa ido a ainihin lokacin kan wutar ripple ta capacitor. Idan yanayin raƙuman ruwa na yanzu ya lalace ko kuma ƙimar tasiri ta yi yawa sosai, yana iya zama sigina na farko na ƙaruwar ESR na capacitor, wanda ke buƙatar a yi nazarinsa a matsayin gargaɗin gazawa.
Nau'in Tambaya: Kudin Sauya Capacitor
T: A lokacin gyara, an gaya min cewa ana buƙatar a maye gurbin DC-Link capacitor. Shin farashin maye gurbin wannan nau'in liquid horn capacitor yana da yawa? Shin yana da inganci idan aka kwatanta da sauran nau'ikan capacitors?
A: Kudin maye gurbin wani ɓangare ne na farashin bayan sayarwa da masana'anta kuma yana buƙatar a yi la'akari da shi daga dukkan tsarin.
Lokacin tantancewa, yana da mahimmanci a yi la'akari da ba kawai farashin kayan aiki ba, har ma da raguwar farashin dawowar garanti sakamakon ingantaccen Lokacin Tsakanin Faɗuwa (MTBF), da kuma rage nau'ikan kayan gyara da lokacin gyara saboda ƙirar da aka tsara. Wannan shine ainihin fa'idar farashi.
Nau'in Tambaya: Katsewar Caji da kuma Jure Wutar Lantarki
T: Ga motocin 800V, wasu ba sa katse caji, yayin da wasu kuma lokaci-lokaci suna fuskantar katsewar caji saboda "ƙarfin lantarki mara kyau." Shin wannan yana da alaƙa da aikin ƙarfin lantarki mai jurewa na capacitor DC-Link?
A: Katsewar "ƙarfin lantarki mara kyau" sakamakon tsarin kariya ne kuma yana buƙatar sake haifuwa da kuma nazarin tushen dalilin.
Gina yanayin gwaji don kwaikwayon matsalolin grid (kamar ƙarar ƙarfin lantarki) ko matakan lodi. Yi amfani da oscilloscope mai sauri don kama yanayin ƙarfin bas da kuma wutar capacitor jim kaɗan kafin a kunna kariyar. Yi nazarin ko ƙarfin wutar lantarki ya wuce ƙimar ƙarfin capacitor da kuma saurin amsawar capacitor.
Nau'in Tambaya: Daidaita Rayuwa
T: A matsayina na bangaren mota, ina buƙatar tsawon rayuwar capacitor ya kasance kusa da na dukkan abin hawa. Shin jerin CW3H ya cika wannan buƙata?
A: Daidaita tsawon rai yana buƙatar ya dogara ne akan lissafin daga ainihin bayanan amfani, ba kawai ƙimar suna ba.
Ana ba da shawarar a cire samfuran halayen caji na yau da kullun na masu amfani (kamar saurin caji, tsawon lokaci, da rarraba zafin jiki na yanayi) daga manyan bayanai na abin hawa, a mayar da su zuwa bayanan zafin aiki na capacitor, sannan a haɗa su da samfurin tsawon rai da mai samarwa ya bayar don ƙarin kimanta tsawon rai don tabbatar da ƙira.
Nau'in Tambaya: Tasirin Girgiza akan Masu Haɗawa
T: Shin yawan tukin motocin 800V a kan titunan tsaunuka da kuma wuraren da suka yi tsauri zai lalata na'urar DC-Link capacitor, wanda hakan zai haifar da matsalar caji ko rashin wutar lantarki?
A: Ana buƙatar tabbatar da ingancin girgiza a lokacin matakin DV don guje wa matsalolin kasuwa na gaba.
Gwajin girgiza, ban da share mita, dole ne ya haɗa da gwajin girgiza bazuwar bisa ga ainihin yanayin hanya. Bayan gwaji, ya kamata a yi gwajin aiki da ma'aunin sigogi. Mafi mahimmanci, ya kamata a rarraba capacitor kuma a yi nazari don duba ƙananan lalacewa da girgiza ta haifar ga tsarin naɗewa na ciki da haɗin lantarki.
Nau'in Tambaya: Ingancin Farashi
T: Idan aka kwatanta da na'urorin lantarki masu ƙarfin lantarki na gargajiya da na'urorin lantarki masu ƙarfin lantarki, menene fa'idodin amfani da za a iya samu na zaɓar jerin CW3H dangane da farashi da aiki?
A: Ingancin farashi shine babban tushen yanke shawara don zaɓar injiniya kuma yana buƙatar tallafin bayanai masu girma dabam-dabam.
Kafa "Teburin Binciken Samfura Mai Gwaninta" don auna ƙarfin capacitors na CW3H akan irin waɗannan capacitors na electrolytic, capacitors na polymer, da capacitors na fim a cikin manyan girma kamar ƙarfin kowace girma, farashin ESR ga kowace raka'a, tsawon lokacin zafi mai yawa, da kuma juriya mai yawa. Haɗa wannan tare da auna aikin don samar da shawarwarin zaɓi na gaske.
Nau'in Tambaya: Daidaitawar Sauyawa
T: A da ina amfani da capacitors masu irin waɗannan ƙayyadaddun bayanai daga wasu samfuran. Zan iya maye gurbinsu kai tsaye da jerin CW3H?
A: Daidaitawar maye gurbin ya shafi dacewa da haɗarin sauya layin samarwa da kuma kula da shi bayan sayarwa.
Kafin gabatar da wani madadin, dole ne a yi cikakken Gwajin Tabbatarwa Kai Tsaye (DVT), wanda ya haɗa da aikin lantarki, ƙaruwar zafin jiki, tsawon rai, da girgiza, don tabbatar da cewa aikin bai yi ƙasa da ƙirar asali ba. A lokaci guda, a tantance ko diamita na ramin PCB, nisan da ke rarrafe, da sauransu, sun dace sosai don guje wa matsalolin tsari yayin samarwa ko gyara.
Nau'in Tambaya: Bukatun Shigarwa
T: Akwai wasu buƙatu na musamman na tsari ko matakan kariya yayin shigar da capacitors na jerin CW3H?
A: Tsarin shigarwa shine mataki na ƙarshe na tabbatar da inganci kuma dole ne a rubuta shi cikin umarnin aiki.
Ya kamata SOP ya bayyana a sarari: 1) Duba yanayin capacitor da jagororinsa da ido kafin shigarwa; 2) Bayyana ƙarfin da za a yi don matse maƙallan gyarawa; 3) Duba cikar haɗin haɗin solder bayan haɗa raƙuman ruwa; 4) Ana ba da shawarar a shafa manne mai gyarawa a tushen jagororin (ana buƙatar tantance dacewar sinadaran manne da casing ɗin capacitor).
Nau'in Matsala: Shirya matsala
T: Me ya kamata a yi idan aka sami hauhawar zafin jiki mara kyau ko lalacewar aikin capacitor yayin amfani?
A: Ya kamata a daidaita tsarin gyara matsala domin a gano ko matsalar tana da alaƙa da wani ɓangare ko tsarin.
Samar da jagorar magance matsalar da ke faruwa a wurin: Na farko, a auna ƙarfin lantarki, ESR, da kwararar iskar gas na capacitor mai matsala sannan a kwatanta su da takardar bayanai; na biyu, a duba da'irorin da ke kewaye don ganin alamun yawan wutar lantarki ko ƙarfin lantarki; na uku, a gudanar da gwaje-gwajen kwatantawa akan ɓangaren da ke da matsala da kuma ingantaccen sashi a ƙarƙashin yanayi ɗaya don sake haifar da matsalar. Ya kamata a mayar da sakamakon bincike ga mai samar da kayayyaki don nazarin yuwuwar amfani (FA).
Lokacin Saƙo: Disamba-11-2025