Izingxenye ezifihlwe ekujuleni kwemoto zibaluleke kakhulu. Uma ingxenye eyodwa ihluleka, yonke imoto iyama ukuhamba. Lesi sihloko sihlola ukuthi ukukhetha izingxenye ezifanele kugcina izimoto zisebenza kahle futhi kuvimbela ukuwohloka okumba eqolo. Sizobheka ukuthi kungani ukukhetha konjiniyela besimanje konga imali futhi kukhuphule ukusebenza.
Kungani Izinketho Ze-Capacitor Zibaluleke Kangaka Emotweni Kagesi Yesimanje?
A yesimanje ev empeleni iyikhompyutha enkulu emasondweni enikwa amandla ibhethri elikhulu. Lolu hlelo luncike kakhulu kunqubo ebizwa ngokuthi ukuguqulwa kwamandla. Le khasi amandla ebhethri inikeza dc amandla, ogeleza emugqeni owodwa oqondile. Nokho, i izinjini zikagesi ukuthi empeleni ujike amasondo kudingeka amandla ac, egeleza ngapha nangapha. Idivayisi eyenza lokhu kushintsha kwenzeke kuthiwa yi- i-inverter. Ngaphakathi kwalesi sisetshenziswa esibucayi, uzothola okubalulekile izingxenye ze-passive lokho kuphakamisa kanzima. Okubaluleke kakhulu kulezi yi- i-capacitor.
Uma i-capacitor yehluleka, the i-powertrain iyavala. Imoto ngeke ihambe. Yingakho i- ama-capacitors asetshenzisiwe kulezi zimoto kumele kube nzima ngendlela emangalisayo. Kumele baphathe amandla amakhulu ngaphandle kokujuluka. Emhlabeni we amandla kagesi, onjiniyela babhekene nokukhetha okukhulu. Kufanele banqume ukuthi yiluphi uhlobo lwe i-capacitor ukusebenzisa. Inketho ithinta ngokuqondile isivinini semoto, ububanzi, neminyaka yokuphila.
Embonini yethu yokukhiqiza, sibona ukuthi lezi zinketho zidlala kanjani. Ukwakha ikhwalithi ephezulu i-capacitor kudinga ukunemba ngokwedlulele. Izingxenye kufanele zilinywe ngokuqinile futhi ngokunembile. Lokhu kuqinisekisa okungcono kakhulu ukusebenza kukagesi kungenzeka. Lapho i-automaker ikhetha eshibhile i-capacitor, bafaka engozini isithunzi sayo yonke imoto. Yingakho kugxilwa njalo kwikhwalithi.
Yini Eyenza I-Film Capacitor Ibaluleke Kangaka Kuzicelo Ze-EV?
A ifilimu capacitor yakhiwe ngokwehlukile kunezinhlobo ezindala. Isebenzisa ucezu lwe ipulasitiki elincanyana njengawo i-dielectric ungqimba. I i-dielectric ingxenye evimba ugesi ukuthi ungaweli, okuvumela amandla akheke. Abakhiqizi bafafaza ungqimba oluncane lwensimbi kule pulasitiki. Lokhu kwakha a ifilimu metallized. Lezi zingqimba ezincane zibe seziboshwe ngokuqinile zibe isilinda noma isimo esiyisicaba. Sisebenzisa i-Advanced umkhiqizi wezingxenye zomshini wokujija e-china ngekhwalithi ephansi yamanani aphansi ukuqinisekisa ukuthi lolu hlelo alunasici.
Ekufuneni ev izicelo, i ifilimu capacitor ikhanya ngokugqamile. Akushisi kakhulu, ngisho nalapho usebenza kanzima. Lokhu kungenye yezinto eziyinhloko izinzuzo zefilimu capacitors. Asebenza kahle kakhulu. Lapho onjiniyela basebenzisa a ifilimu ye-metalized polypropylene, imiphumela mihle. Impahla izinzile futhi iphatha kahle ingcindezi.
Ngenxa yesakhiwo sayo esiqinile, a ifilimu capacitor ayivuzi. Ayiqukethe uketshezi olumanzi. Lokhu kuyenza ifaneleke kahle endaweni enzima ngaphansi kwesivalo semoto. I ifilimu capacitor ingabekezelela ukuzamazama njalo, ukungcola, kanye nesimo sezulu esibi kakhulu. Isebenza njengesipontshi esithembekile samandla, sicwiliswa emanzini futhi sikhulule amandla lapho injini ifuna khona.
I-Electrolytic Capacitor Iqhathaniswa Kanjani Ne-Film Capacitor?
A i-electrolytic capacitor ubuchwepheshe obudala. Isebenzisa uketshezi lwamakhemikhali olumanzi, noma ijeli, ngaphakathi kwebhokisi layo. Lolu ketshezi olumanzi lusiza ekugcineni amandla. Nokho, ngokuhamba kwesikhathi lolu ketshezi lungoma kancane. Uma sebumile, i i-electrolytic capacitor iyeka ukusebenza kahle. A ifilimu capacitor, ngakolunye uhlangothi, iqinile ngokuphelele. Ayinalo uketshezi oluzokoma, okuyenza iphile isikhathi eside kakhulu.
Omunye umehluko omkhulu yi- ukumelana kochungechunge olulinganayo. Onjiniyela bavamise ukubiza lokhu esr. Le khasi esr ngokuyisisekelo kuwukungqubuzana kwangaphakathi. Ukungqubuzana okuphezulu kubangela ukushisa. An i-electrolytic ingxenye ngokuvamile inokuphezulu esr kunengxenye yefilimu. Lapho esindayo i-ripple current igeleza, i i-electrolytic iyunithi ishisa ngokushesha. Lokhu kushisa kusheshisa inqubo yokomisa, okuholela ekufeni ngaphambi kwesikhathi.
Ukuphatha okonakele ripple, uhlelo ludinga ukuqina isihlungi. A ifilimu capacitor isebenza njengento enhle kakhulu isihlungi ngoba ihlala ipholile. Iphatha i i-ripple current kalula. Yingakho onjiniyela abaningi bekhetha inguqulo yefilimu kune i-electrolytic inguqulo. Bafuna izingxenye ezihlala impilo yonke yemoto ngaphandle kokudinga ukushintshwa.
Kungani Ama-EV Adinga Imiklamo Ethuthukisiwe Ye-Capacitor?
Izimoto esizishayelayo namuhla ziya ngesivinini esikhulu futhi zishaja ngokushesha okukhulu. Izimoto zikagesi zakuqala zazisebenzisa uhlelo lwe-400-volt. Namuhla, entsha izakhiwo igijima ku 800v. Lolu shintsho ludinga ubuqotho high-voltage ukumisa. Lapho uphinda kabili i-voltage, ubeka ingcindezi eyengeziwe kuzo zonke izingxenye. Indinganiso i-capacitor ngeke nje uphile ku 800v uhlelo. Izophuka futhi ibangele isifunda esifushane.
Ngoba isikhala emotweni sincane kakhulu, i ukuminyana kwamandla kumele kube phezulu. Onjiniyela badinga ukupakisha amandla aphezulu emabhokisini amancane kakhulu. Lokhu kuphoqa isidingo esisha ngokuphelele imiklamo ye-capacitor. Ngeke sisakwazi ukusebenzisa izingxenye ezinkulu, ezinkulu. Sidinga a amandla aphezulu ingxenye encane kodwa enamandla. Lena inselele enkulu kunoma ubani owenza izingxenye zayo evs.
Ukufeza lesi sidingo, abakhiqizi be-capacitor bayasebenza nzima kunakuqala. Bahlola amapulasitiki amasha nezinsimbi ezincane. Basebenzisa imishini enjalo othomathikhi aluminium wire wedge bonder ukudala ukuxhumana okuqinile kwangaphakathi. Lokhu kuthuthukiswa okuncane kuyahlanganisa. Baholela ku-a ukusebenza okuphezulu imoto eshaja ngamaminithi esikhundleni samahora.
Ama-Film Capacitors Aphatha Kanjani I-Ripple Yamanje Ku-Inverter Ye-Traction?
Le khasi i-inverter ye-traction ubuchopho bemoto. Ivula futhi ivale amandla izikhathi eziyizinkulungwane ngomzuzwana. Lokhu kushintsha okusheshayo kudala ukugeleza kwamandla okuguquguqukayo, okwaziwa ngokuthi a ripple. Uma lokhu ripple ibuyela ebhethrini, ingalimaza amaseli ebhethri. A ifilimu capacitor ibekwe phakathi kwebhethri namaswishi ukuze isebenze njenge-a isihlungi.
Leli i-capacitor imunca i-choppy okwamanje futhi ikhulula ukugeleza okubushelelezi, okuzinzile. Ivikela ezibizayo iphakethe lebhethri ekulimaleni. Ukuphatha lokhu i-ripple current umsebenzi onzima. Ukushaja nokukhipha njalo kudala ingcindezi yangaphakathi. Ngoba ihlala ipholile, a ifilimu capacitor uphelele kulo msebenzi.
Sisebenzisa ngokukhethekile ama-capacitor wefilimu alahlekelwe kancane zalezi imvamisa ephezulu ukushintsha imisebenzi. "Ukulahlekelwa okuncane" kusho ukuthi abamoshi amandla njengokushisa. Ku-a i-inverter ye-traction, ukonga amandla kusho ukuthi imoto ingashayela iqhubeke ngokukhokhiswa okukodwa. Ukusebenza kahle kwale single isihlungi ingxenye ithinta ngokuqondile uhla oluphelele lwemoto kagesi.
Iyiphi indima edlalwa yi-Film Capacitor kuma-High-Voltage EV Systems?
Emotweni kagesi enamandla amakhulu, ulayini wamandla oyinhloko ubizwa ngokuthi isixhumanisi se-DC. Izingxenye ezihlala kulo mugqa zibizwa isixhumanisi capacitors. Umsebenzi wabo oyinhloko uku ukudonsa ama-voltage spikes. Uma unyathela i-accelerator noma ushaya amabhuleki, amazinga amandla agxuma kakhulu. Lokhu kugxuma ngokuzumayo ama-voltage spikes.
Uma i-spike ifinyelela obucayi i-semiconductor ama-computer chips, izowabhubhisa. A high-voltage ifilimu capacitor isebenza njenge-shock absorber. Ibamba i-spike futhi ibambe amandla ngokuphepha. Igcina yonke umjikelezo iphephile futhi izinzile. Ngaphandle kwayo, i i-inverter ingaqhumisa i-fuse ngokushesha.
Lezi zingxenye ezinzima zisetshenziswa nakwezinye izindawo, njengasebhodini izimpahla zamandla. Baze basize ukuphatha okusindayo dc yokushaja ibhethri uma uxhuma imoto eshajani esheshayo. Ngoba bayaphatha dc voltage kuhle, a ifilimu capacitor itholakala yonke indawo emotweni, iqapha izinto zikagesi ezibucayi ekulimaleni.
Kungani Abakhiqizi Be-EV Besuka Kuzixazululo Ze-Electrolytic?
Le khasi imboni yezimoto inomthetho owodwa wegolide: izingxenye akufanele zephule. Bayafuna ukwethembeka okuphezulu ngaphezu kwakho konke okunye. An i-electrolytic ingxenye ishibhile futhi iwusizo ezindaweni eziningi, kodwa inemingcele eqinile. Ijwayele ukwehluleka uma ishisa kakhulu noma izamazama kakhulu.
Le khasi imboni yev ayikwazi ukwamukela ukuphazamiseka okungazelelwe kuthelawayeka. Imoto emile iyingozi kwezokuphepha. Ngokufaka esikhundleni i- i-electrolytic capacitor ngenguqulo yefilimu eqinile, abakhi baba ngcono kakhulu ukuthembeka. Le khasi ev iba umshini ophephile ongawushayela imindeni. Lokhu kugxila ekuphepheni kushintsha indlela esiklama ngayo izimoto zikagesi.
Sibona ushintsho olukhulu. Onjiniyela bazimisele ukukhokha kancane kancane ukuze a ifilimu capacitor ngoba igcina imali kamuva. Yehlisa izimangalo zewaranti namakhasimende angajabule. Ukuhamba kude i-electrolytic ukuklama kuyisinqumo esihlakaniphile. Iqinisekisa ukuthi okubalulekile umjikelezo iyaqhubeka nokusebenza, unyaka nonyaka, ngaphandle kwesondlo.
Ingabe Ama-Capacitor Amafilimu Angakwazi Ukumelana Ngokwethembekile Nezinga Lokushisa Lokusebenza lika-105°C?
Indawo eseduze kwenjini kanye ne-inverter ishisa ngendlela emangalisayo. I izinga lokushisa lokusebenza ingafinyelela kalula 105°c ngosuku olufudumele. Ingxenye evamile, eshibhile izoncibilika noma yehlule kulokhu kushisa. Nokho, eyenziwe kahle ifilimu capacitor uyakwazi ukuyiphatha. Zenzelwe ukwenza ngokwethembekile ngaphansi kokucindezeleka okushisayo okwedlulele.
Imfihlo ilele ezintweni zepulasitiki. A ifilimu ye-polypropylene iphatha kahle ukushisa. Ayithambisi noma ilahlekelwe isimo sayo. Ngenxa yalokhu, polypropylene ifilimu capacitors kukhona ukukhetha okuphezulu kwezindawo ezishisayo. I i-polypropylene impahla iqinile, iyavumelana nezimo, futhi imelana nokushisa.
Lokhu kuzinza okushisayo kuqinisekisa ukwethembeka okuphezulu ensimini. Lapho ushayela ogwadule olushisayo, udinga imoto yakho ukuze usebenze. Udinga izingxenye ezingeke ziphele amandla. Ikhono lokusinda a 105°c izinga lokushisa lokusebenza kufakazela ukuthi kungani lobu buchwepheshe buphakeme. Inikeza kokubili umshayeli nomenzi ukuthula kwengqondo.
Ukukhetha Kwe-Capacitor Kukuthinta Kanjani Ukuthembeka Kwesitimela Esinamandla Kagesi?
Ngamunye i-capacitor idlala indima empilweni ephelele yemoto. Ku-a motor drive, indawo ebizwa inductance kumele igcinwe iphansi kakhulu. Phezulu inductance kubangela ukubambezeleka. Ilwa nezinguquko ezisheshayo emandleni. Lokhu kubambezeleka kubangela izinkinga lapho i- i-semiconductor amaswishi azama ukusebenza ngokushesha.
A eklanywe kahle ifilimu capacitor ingakhiwa ngephansi kakhulu inductance. Lokhu kusiza i ukudonsa amasistimu ahamba kahle ngendlela emangalisayo. Ivumela amaswishi ukuthi asebenze ngaphandle kokulwa nokumelana. Ukwenza lokhu okulungile, ukukhetha kwangaphambi kwesikhathi kuthuthukisa konke ukuthembeka yazo zonke amasistimu kagesi emotweni.
A smart ubuchwepheshe be-capacitor ukukhetha kusho i imoto kagesi ihlala iminyaka eminingi. Inciphisa ukuguga nokuguga ezingxenyeni zemoto ezibizayo. Lapho ukwakha okuthembekile isiguquli, usebenzisa izingxenye ezisezingeni eliphezulu njenge izinga eliphezulu intengo ephansi IJalimane ingenisa i-aluminium bonding wire/ribbon/strip ngoxhumo lwangaphakathi luqinisekisa futhi ukuthi i-powertrain ngeke ihluleke ngaphansi komthwalo.
Yiziphi Izinzuzo Eziyinhloko Zama-Film Capacitors ku-Future EV Architectures?
Esinye sezici ezimangalisayo zeyunithi yefilimu yi ukuzelapha. Uma ukuqhuma kwamandla kungazelelwe kushisa imbobo encane epulasitiki, i- i-capacitor uyazilungisa. Ungqimba oluncane lwensimbi luyahwamuka ngokushesha eduze kwembobo, luhlukanise umonakalo. I umjikelezo ulokhu esebenza nje sengathi akwenzekanga lutho. Lokhu kuvimbela ukwehluleka okuphelele, okuyinhlekelele.
Ukwengeza, lawa mayunithi anikeza okuqondile, okuzinzile amandla amanani. Abalahlekelwa amandla abo okugcina ngokuhamba kwesikhathi. Lokhu kubenza balingane ngokuphelele ku- isizukulwane esilandelayo onjiniyela bemiklamo bayaphupha. Lapho ufuna okuhle kakhulu capacitors for ev sebenzisa, isitayela sefilimu siwina kalula.
Le khasi ev amandla electronics yakusasa izoncika kakhulu kulezi zingxenye. Mancane, aqinile, futhi ahlakaniphile. Njengoba sakha imishini engcono sisebenzisa amathuluzi athuthukile njenge umshini wokuvala ama-metalized film capacitor, ikhwalithi yalezi zingxenye izokhula kuphela. Ikusasa lokushayela lisebenza ngogesi, futhi lixhaswe ubuchwepheshe befilimu obunembayo.
