Njengomthombo wamandla oyinhloko wezimoto ezintsha zamandla, amabhethri kagesi abaluleke kakhulu ezimotweni ezintsha zamandla. Ngesikhathi sokusetshenziswa kwangempela kwemoto, ibhethri lizobhekana nezimo zokusebenza eziyinkimbinkimbi nezishintshashintshayo. Ukuze kuthuthukiswe ibanga lokuhamba, imoto idinga ukuhlela amabhethri amaningi ngangokunokwenzeka endaweni ethile, ngakho isikhala sephakethe lebhethri emotweni sincane kakhulu. Ibhethri likhiqiza ukushisa okuningi ngesikhathi sokusebenza kwemoto futhi liqongelela endaweni encane ngokuhamba kwesikhathi. Ngenxa yokuhlanganiswa kwamaseli amaningi ephaketheni lebhethri, kunzima kakhulu futhi ukusabalalisa ukushisa endaweni ephakathi ngezinga elithile, okwandisa ukungalingani kwezinga lokushisa phakathi kwamaseli, okuzonciphisa ukusebenza kahle kokushaja nokukhipha ibhethri futhi kuthinte amandla ebhethri; Kuzobangela ukuqhuma kokushisa futhi kuthinte ukuphepha nokuphila kohlelo.
Izinga lokushisa lebhethri elinamandla linethonya elikhulu ekusebenzeni kwalo, empilweni nasekuphepheni kwalo. Ezimweni eziphansi, ukumelana kwangaphakathi kwamabhethri e-lithium-ion kuzokhula futhi amandla azoncipha. Ezimweni ezimbi kakhulu, i-electrolyte izobanda futhi ibhethri ayikwazi ukukhishwa. Ukusebenza kwezinga lokushisa eliphansi lesistimu yebhethri kuzothinteka kakhulu, okuholela ekusebenzeni kwamandla okukhipha izimoto zikagesi. Ukuncipha kokufiphala nobubanzi. Lapho ushaja izimoto ezintsha zamandla ngaphansi kwezimo eziphansi zokushisa, i-BMS ejwayelekile iqala ifudumeze ibhethri lifike ezingeni lokushisa elifanele ngaphambi kokushaja. Uma ingaphathwa kahle, izoholela ekushajeni ngokweqile kwamandla kagesi ngokushesha, okuholela ekushiseni okufushane kwangaphakathi, futhi kungase kube nomusi owengeziwe, umlilo noma ngisho nokuqhuma. Inkinga yokuphepha kokushaja kwezinga lokushisa eliphansi kwesistimu yebhethri yezimoto zikagesi ivimbela ukukhushulwa kwezimoto zikagesi ezindaweni ezibandayo ngezinga elikhulu.
Ukuphathwa kokushisa kwebhethri kungenye yemisebenzi ebalulekile ku-BMS, ikakhulukazi ukugcina iphakethe lebhethri lisebenza ebangeni lokushisa elifanele ngaso sonke isikhathi, ukuze kulondolozwe isimo sokusebenza esihle kakhulu sephakethe lebhethri. Ukuphathwa kokushisa kwebhethri kuhlanganisa kakhulu imisebenzi yokupholisa, ukushisa kanye nokulinganisa izinga lokushisa. Imisebenzi yokupholisa kanye nokushisa ilungiswa kakhulu ukuze kutholakale umthelela ongaba khona wokushisa okungaphandle kwebhethri. Ukulinganiswa kwezinga lokushisa kusetshenziselwa ukunciphisa umehluko wokushisa ngaphakathi kwephakethe lebhethri nokuvimbela ukubola okusheshayo okubangelwa ukushisa ngokweqile kwengxenye ethile yebhethri.
Ngokuvamile, izindlela zokupholisa zamabhethri kagesi zihlukaniswe kakhulu ngezigaba ezintathu: ukupholisa umoya, ukupholisa uketshezi kanye nokupholisa okuqondile. Imodi yokupholisa umoya isebenzisa umoya wemvelo noma umoya opholile egumbini labagibeli ukuze ugeleze ebusweni bebhethri ukuze kufezwe ukushintshana kokushisa kanye nokupholisa. Ukupholisa uketshezi ngokuvamile kusebenzisa ipayipi elizimele lokupholisa ukushisa noma ukupholisa ibhethri lamandla. Njengamanje, le ndlela iyindlela eyinhloko yokupholisa. Isibonelo, iTesla neVolt zombili zisebenzisa le ndlela yokupholisa. Uhlelo lokupholisa oluqondile lususa ipayipi lokupholisa lebhethri lamandla futhi lusebenzisa ngqo i-refrigerant ukupholisa ibhethri lamandla.
1. Uhlelo lokupholisa umoya:
Emabhethri kagesi okuqala, ngenxa yomthamo wawo omncane kanye nobuningi bamandla, amabhethri amaningi kagesi ayepholiswa ukupholisa umoya.Isifudumezi Somoya se-PTC) ihlukaniswe ngezigaba ezimbili: ukupholisa umoya wemvelo kanye nokupholisa umoya okuphoqelelwe (kusetshenziswa ifeni), futhi isebenzisa umoya wemvelo noma umoya obandayo ekhabhini ukupholisa ibhethri.
Abameleli abajwayelekile bezinhlelo ezipholiswe umoya yiNissan Leaf, iKia Soul EV, njll.; njengamanje, amabhethri angu-48V ezimoto ezincane ze-48V ezihlanganisiwe ngokuvamile ahlelwe endaweni yabagibeli, futhi apholiswa umoya. Isakhiwo sesistimu yokupholisa umoya silula, ubuchwepheshe bukhulile, futhi izindleko ziphansi. Kodwa-ke, ngenxa yokushisa okulinganiselwe okuthathwe umoya, ukusebenza kahle kokushintshana kokushisa kuphansi, ukufana kwezinga lokushisa langaphakathi lebhethri akukuhle, futhi kunzima ukufeza ukulawula okunembile kwezinga lokushisa lebhethri. Ngakho-ke, uhlelo lokupholisa umoya ngokuvamile lufanelekela izimo ezinebanga elifushane lokuhamba ngesikebhe kanye nesisindo semoto esincane.
Kuhle ukusho ukuthi ohlelweni olupholiswe umoya, ukwakheka komsele womoya kudlala indima ebalulekile emphumeleni wokupholisa. Amapayipi omoya ahlukaniswe kakhulu ngamapayipi omoya alandelanayo kanye namapayipi omoya alandelanayo. Isakhiwo esilandelanayo silula, kodwa ukumelana kukhulu; isakhiwo esilandelanayo siyinkimbinkimbi kakhulu futhi sithatha isikhala esiningi, kodwa ukufana kokushabalalisa ukushisa kuhle.
2. Uhlelo lokupholisa oluwuketshezi
Imodi epholiswe ngoketshezi isho ukuthi ibhethri lisebenzisa uketshezi olupholisayo ukushintshanisa ukushisa (Isifudumezi Sokupholisa se-PTC). Isipholisi singahlukaniswa sibe izinhlobo ezimbili ezingathinta ngqo iseli yebhethri (uwoyela we-silicon, uwoyela we-castor, njll.) futhi zithinte iseli yebhethri (amanzi ne-ethylene glycol, njll.) ngemigudu yamanzi; njengamanje, isisombululo esixubile samanzi ne-ethylene glycol sisetshenziswa kakhulu. Uhlelo lokupholisa oluwuketshezi luvame ukwengeza isipholisi ukuze luhambisane nomjikelezo wokuqandisa, futhi ukushisa kwebhethri kususwa ngesiqandisi; izingxenye zaso eziyinhloko yi-compressor, i-chiller kanye ne-iphampu yamanzi kagesiNjengomthombo wamandla okupholisa, i-compressor inquma amandla okushintshanisa ukushisa kwesistimu yonke. I-chiller isebenza njengokushintshanisa phakathi kwe-refrigerant kanye noketshezi olupholile, futhi inani lokushintshanisa ukushisa linquma ngqo izinga lokushisa koketshezi olupholile. Iphampu yamanzi inquma izinga lokugeleza koketshezi olupholile epayipini. Uma izinga lokugeleza lishesha, kulapho ukusebenza kokudlulisa ukushisa kuba ngcono, futhi okuphambene nalokho.
Isikhathi sokuthunyelwe: Agasti-09-2024
