Ukuphathwa kokushisa kwebhethri
Ngesikhathi sokusebenza kwebhethri, izinga lokushisa linethonya elikhulu ekusebenzeni kwalo.Uma izinga lokushisa liphansi kakhulu, lingabangela ukwehla okukhulu kumthamo webhethri namandla, kanye nesekhethi emfishane yebhethri.Ukubaluleka kokulawula ukushisa kwebhethri kuya ngokuya kugqama njengoba izinga lokushisa liphezulu kakhulu okungabangela ibhethri ukuthi libole, ligle, libambe umlilo noma liqhume.Izinga lokushisa lokusebenza lebhethri lamandla liyisici esibalulekile ekunqumeni ukusebenza, ukuphepha nempilo yebhethri.Ngokombono wokusebenza, izinga lokushisa eliphansi kakhulu lizoholela ekwehleni komsebenzi webhethri, okuholela ekwehleni kokushajwa nokukhipha ukusebenza, kanye nokwehla okukhulu komthamo webhethri.Ukuqhathanisa kuthole ukuthi lapho izinga lokushisa lehla ku-10 ° C, umthamo wokukhipha ibhethri wawungu-93% walokho ekushiseni okuvamile;Nokho, lapho izinga lokushisa lehla laya ku--20°C, amandla okukhipha ibhethri ayengama-43% kuphela alawo ezingeni lokushisa elivamile.
Ucwaningo olwenziwa ngu-Li Junqiu nabanye luveze ukuthi uma ubheka ukuphepha, uma izinga lokushisa liphezulu kakhulu, ukusabela okuseceleni kwebhethri kuzosheshiswa.Lapho izinga lokushisa selisondele ku-60 °C, izinto zangaphakathi/izinto ezisebenzayo zebhethri zizobola, bese "i-thermal runaway" izokwenzeka, okubangela izinga lokushisa Ukuphakama okungazelelwe, kuze kufike ku-400 ~ 1000 ℃, bese kuholela umlilo nokuqhuma.Uma izinga lokushisa liphansi kakhulu, izinga lokushaja lebhethri lidinga ukugcinwa ngenani eliphansi lokushaja, ngaphandle kwalokho lizobangela ibhethri ukuthi libole i-lithium futhi kubangele ukuthi isifunda esifushane sangaphakathi sibambe umlilo.
Ngokombono webhethri, umthelela wezinga lokushisa empilweni yebhethri awukwazi ukuzitshwa.Ukufakwa kwe-lithium kumabhethri athambekele ekushajeni izinga lokushisa eliphansi kuzodala impilo yomjikelezo webhethri ukuthi ibole ngokushesha izikhathi eziningi, futhi izinga lokushisa eliphezulu lizothinta kakhulu impilo yekhalenda nempilo yomjikelezo webhethri.Ucwaningo luthole ukuthi uma izinga lokushisa lingu-23 ℃, impilo yekhalenda yebhethri elinomthamo ongu-80% osele cishe izinsuku ezingama-6238, kodwa lapho izinga lokushisa likhuphukela ku-35 ℃, impilo yekhalenda cishe yizinsuku eziyi-1790, futhi lapho izinga lokushisa lifinyelela ku-55. ℃, impilo yekhalenda cishe yizinsuku ezingama-6238.Izinsuku ezingama-272 kuphela.
Njengamanje, ngenxa yezindleko kanye nezingqinamba zobuchwepheshe, ukuphathwa kwebhethri okushisayo(I-BTMS) ayihlanganisiwe ekusetshenzisweni kwemidiya ye-conductive, futhi ingahlukaniswa ngezindlela ezintathu ezinkulu zobuchwepheshe: ukupholisa komoya (okusebenzayo nokungenzi lutho), ukupholisa uketshezi kanye nezinto zokushintsha isigaba (PCM).Ukupholisa komoya kulula, akunabungozi bokuvuza, futhi kuyayonga.Ilungele ukuthuthukiswa kokuqala kwamabhethri e-LFP nezinkundla zezimoto ezincane.Umphumela wokupholisa uketshezi ungcono kunowokupholisa umoya, futhi izindleko ziyanda.Uma kuqhathaniswa nomoya, i-liquid cooling medium inezici zomthamo wokushisa othize omkhulu kanye ne-coefficient yokudlulisa ukushisa okuphezulu, okwenza ngempumelelo ukuntula kobuchwepheshe kokusebenza kahle kokupholisa komoya okuphansi.Iwukwenza kahle okukhulu kwezimoto zabagibeli njengamanje.uhlelo.U-Zhang Fubin wabonisa ocwaningweni lwakhe ukuthi inzuzo yokupholisa uketshezi ukuchithwa kokushisa okusheshayo, okungaqinisekisa izinga lokushisa elifanayo lephakethe lebhethri, futhi lifanele amaphakethe ebhethri ngokukhiqiza okukhulu kokushisa;ukungalungi izindleko eziphezulu, izidingo zokupakisha eziqinile, ubungozi bokuvuza koketshezi, kanye nesakhiwo esiyinkimbinkimbi.Izinto zokushintsha isigaba zinokubili ukusebenza kahle kokushintshanisa ukushisa kanye nezinzuzo zezindleko, nezindleko zokunakekela eziphansi.Ubuchwepheshe bamanje busesesigabeni saselabhorethri.Ubuchwepheshe bokuphatha okushisayo bezinto ezishintshayo zesigaba abukavuthwa ngokugcwele, futhi buyisiqondiso esingaba khona kakhulu sokuphathwa kokushisayo kwebhethri esikhathini esizayo.
Sekukonke, ukupholisa uketshezi kuwumzila wamanje wobuchwepheshe ojwayelekile, ikakhulukazi ngenxa:
(1) Ngakolunye uhlangothi, amabhethri e-ternary avamile akhona manje anokuqina okushisayo okubi kunamabhethri e-lithium iron phosphate, izinga lokushisa eliphansi elishisayo (izinga lokushisa lokubola, 750 °C le-lithium iron phosphate, 300 °C kumabhethri e-ternary lithium) , nokukhiqizwa kokushisa okuphezulu.Ngakolunye uhlangothi, ubuchwepheshe obusha be-lithium iron phosphate application njengebhethri ye-BYD ye-blade kanye nenkathi ye-Ningde CTP aqeda amamojula, athuthukise ukusetshenziswa kwendawo kanye nokuminyana kwamandla, futhi athuthukise ukuphathwa kokushisa kwebhethri kusuka kubuchwepheshe obupholile emoyeni kuya ekutshekeni kobuchwepheshe obupholile uketshezi.
(2) Ngokuthintwa isiqondiso sokwehliswa komxhaso nokukhathazeka kwabathengi ngebanga lokushayela, ibanga lokushayela lezimoto zikagesi liyaqhubeka nokwanda, futhi izimfuneko zokuminyana kwamandla ebhethri ziya ngokuya ziya phezulu.Isidingo sobuchwepheshe bokupholisa uketshezi ngekhono eliphezulu lokudlulisa ukushisa sinyukile.
(3) Amamodeli athuthuka ngendlela yamamodeli aphakathi nendawo ukuya kwephezulu, anesabelomali esanele sezindleko, ukuphishekela ukunethezeka, ukubekezelela amaphutha engxenye ephansi nokusebenza okuphezulu, kanye nesixazululo sokupholisa uketshezi sihambisana kakhulu nezidingo.
Kungakhathaliseki ukuthi imoto yendabuko noma imoto entsha yamandla, isidingo sabathengi sokunethezeka siya ngokuya sikhuphuka, futhi ubuchwepheshe bokuphatha ukushisa kwe-cockpit sebubaluleke kakhulu.Mayelana nezindlela zesiqandisi, ama-compressor kagesi asetshenziswa esikhundleni se-compressor evamile yokwenza isiqandisi, futhi amabhethri ngokuvamile axhunywe ezinhlelweni zokupholisa umoya.Izimoto zendabuko ngokuyinhloko zisebenzisa uhlobo lwepuleti le-swash, kuyilapho izimoto zamandla amasha zisebenzisa kakhulu uhlobo lwe-vortex.Le ndlela isebenza kahle kakhulu, isisindo esincane, umsindo ophansi, futhi ihambisana kakhulu namandla okushayela kagesi.Ngaphezu kwalokho, isakhiwo silula, ukusebenza kuzinzile, futhi ukusebenza kahle kwe-volumetric kuphezulu ngo-60% kunohlobo lwe-swash plate.%mayelana.Mayelana nendlela yokushisisa, ukufudumeza kwe-PTC(I-heater ye-PTC/I-heater epholile ye-PTC) iyadingeka, futhi izimoto zikagesi azinayo imithombo yokushisa engabizi kakhulu (njengesipholisi senjini evuthayo yangaphakathi)
Isikhathi sokuthumela: Jul-07-2023
