Isingeniso:
Inkinga eyinhloko ekulungisweni kwebhethri nezinhlelo zokusebenza zokunweba zephakethe lebhethri le-lithium ukuthi amasethi amabili noma ngaphezulu amaphakethe ebhethri le-lithium angaxhunywa ngokuqondile ochungechungeni noma ngokuhambisana. Izindlela zokuxhuma ezingalungile azikwazi nje ukuholela ekwehleni kokusebenza kwebhethri, kodwa futhi zingabangela izingozi zokuphepha ezifana namasekhethi amafushane kanye nokushisa ngokweqile. Okulandelayo, sizohlaziya ngokuningiliziwe izindlela ezifanele kanye nezinyathelo zokuphepha zokuxhuma amaphakethe ebhethri ye-lithium kusuka kokubili kokubuka okuhambisanayo nochungechunge. Okulandelayo, sizohlaziya ngokuningiliziwe izindlela ezifanele kanye nezinyathelo zokuphepha zokuxhuma amaphakethe ebhethri ye-lithium kusuka kokubili kokubuka okuhambisanayo nochungechunge, kuhlanganiswe nokusetshenziswaukuhlolwa kwebhethri nezinsimbi zokulungisa.
Ukuxhumeka okuhambisanayo kwephakethe lebhethri le-lithium: ukugcizelela okulinganayo kwezimo nokuvikelwa
Ukuxhumana okuhambisanayo kwamaphakethe ebhethri ye-lithium kungahlukaniswa ngezimo ezimbili, umnyombo wawo olele ekutheni amapharamitha ephakethe lebhethri ayahambisana yini nokuthi izinyathelo zokuvikela ezidingekayo zithathiwe. Lapho ukwahlulela amapharamitha wephakethe lebhethri, i-lithiumumhloli webhethriingakala ngokunembile idatha efana ne-voltage nokumelana kwangaphakathi, inikeze isisekelo sesayensi sohlelo lokuxhuma
(1) Ukuxhumana okuqondile okuhambisanayo lapho amapharamitha ahambisana
Lapho i-voltage, umthamo, ukumelana kwangaphakathi, imodeli yeselula nezinye izincazelo zamasethi amabili amaphakethe ebhethri ye-lithium zifana ncamashi, ukusebenza okuhambisanayo kungenziwa ngokuqondile. Isibonelo, ukusebenzisa isihloli sebhethri ye-lithium ukuthola amasethi amabili ebhethri ye-lithium enesakhiwo esifanayo se-4-series kanye ne-voltage yegama elingu-12V, lapho ishajwe ngokugcwele futhi ine-voltage efanayo, xhuma isigxobo sawo esiphelele esigxotsheni esiphelele esiphelele kanye nesigxobo esingalungile esiphelele ukuze uqedele uxhumano oluhambisanayo. Kufanele kugcizelelwe ukuthi iphakethe lebhethri ngalinye kufanele lifakwe ibhodi lokuvikela elizimele ukuze kuqinisekiswe ukushajwa ngokweqile, ukuchichima ngokweqile, kanye nemisebenzi yokuvikela isikhashana esifushane yebhethri. Ngaphezu kwalokho, ngemuva kokuqedwa kokuxhumeka, kuyadingeka ukusebenzisa i-lithiumumhloli webhethriukuze uhlole kabusha amapharamitha ukuze uqinisekise ukusebenza okuzinzile kwephakethe lebhethri elixhumene ngokuhambisanayo. .
(2) Isikimu esihambisanayo lapho amapharamitha engahambisani
Enqubweni yangempela yokulungisa, kuvamile ukuhlangana namaphakethe ebhethri akhiwe amaqoqo ahlukene amaseli, noma ngabe i-voltage yegama elifanayo (njenge-12V), kukhona umehluko kumthamo (50Ah kanye ne-60Ah) nokumelana kwangaphakathi. Kulokhu, ukuxhumana okuqondile okuhambisanayo kuzoletha izingozi ezinkulu - lapho ama-voltage amaqembu amabili ebhethri ehlukile (njenge-14V ne-12V), iqembu lebhethri le-high-voltage lizoshaja ngokushesha iqembu lebhethri le-low-voltage. Ngokomthetho we-Ohm, uma ukumelana kwangaphakathi kwephakethe lebhethri eline-voltage ephansi kungu-2 Ω, ukushaja okuhambisanayo okusheshayo kungafinyelela ku-1000A, okungabangela kalula ukuthi ibhethri lishise, liqhume, noma libambe umlilo. .
Ukuze ubhekane nalesi simo, izisetshenziswa zokuvikela ezifanayo kufanele zengezwe:
Khetha ibhodi lokuvikela elinomsebenzi wamanje wokukhawulela owakhelwe ngaphakathi: Amanye amabhodi okuvikela aphezulu anezici ezifanayo zamanje ezikhawulela, ezingakhawulela ngokuzenzakalela ukushaja okuhambisanayo ngaphakathi kwebanga eliphephile. Lapho ukhetha ibhodi lokuvikela, i-lithiumidivayisi yokulungisa ibhethriingasetshenziswa ukuhlola ukuthi umsebenzi wayo ujwayelekile yini. .
Ukufaka imojuli yangaphandle yokukhawulela yamanje ehambisanayo: Uma ibhodi lokuvikela lingenawo lo msebenzi, imojula eyengeziwe yamanje yokukhawulela iphrofeshinali ingalungiselelwa ukulawula okwamanje ngezinga elinengqondo futhi kuqinisekiswe ukuxhumana okuphephile. Ngemva kokufaka imojula yokukhawulela yamanje, kuyadingeka ukusebenzisa isihloli sebhethri ye-lithium ukuze uqaphe izinguquko zamanje futhi uqinisekise ukusebenza kwemojuli.
Ukuxhumeka kochungechunge lwephakethe lebhethri ye-lithium: izidingo eziphezulu nokwenza ngokwezifiso
Uma kuqhathaniswa nokuxhumeka okuhambisanayo, uchungechunge lokuxhunywa kwamaphakethe ebhethri le-lithium ludinga izidingo ezingaguquguquki eziqinile zephakethe lebhethri. Uma ixhunywe ochungechungeni, ingafaniswa nenqubo yokuhlanganisa yamaseli ebhethri angaphakathi kuphakethe lebhethri, elidinga amapharamitha angaguquki kakhulu afana ne-voltage, umthamo, ukumelana kwangaphakathi, nezinga lokuzikhipha ngokwakho phakathi kwamaphakethe amabili ebhethri. Uma kungenjalo, kungase kwenzeke ukusatshalaliswa kwamandla kagesi ngokungalingani, okusheshisa ukuguga kwamaphakethe ebhethri angasebenzi kahle. Lapho ukhetha amaphakethe ebhethri afanelekile, i-lithiumabahloli bebhethriingakwazi ukubona ngokushesha nangokunembile imingcele ehlukahlukene, ithuthukise ukusebenza kahle kokuhlola. .
Ukwengeza, isamba sevoltheji ngemva koxhumano lochungechunge iyisamba sikagesi seqembu elilodwa (njengamasethi amabili amabhethri angu-12V axhunywe ochungechungeni lwe-24V), okubeka izidingo eziphakeme kunani lokumelana ne-voltage ye-Mos tube ebhodini lokuvikela. Amabhodi okuvikela ajwayelekile ngokuvamile afaneleka kuphela amaqembu kagesi owodwa. Uma kusetshenziswa ochungechungeni, kuvame ukudingekile ukwenza ngendlela oyifisayo amabhodi okuvikela amandla amakhulu noma ukhethe amasistimu okuphatha ibhethri angochwepheshe (BMS) asekela izintambo eziningi ukuze kuqinisekiswe ukuphepha nokuzinza kochungechunge lwephakethe lebhethri elixhunywe phakathi nokushajwa nokushajwa. Idivayisi yokulungisa ibhethri ye-lithium ingakwazi ukulungisa iphutha nokuxazulula inkinga kumabhodi okuvikela enziwe ngokwezifiso kanye ne-BMS ukuze kuqinisekiswe ukusebenza kwawo okuvamile.
Amathiphu Okuphepha kanye Neziphakamiso Ezisebenzayo
Uxhumano oluhambisanayo lochungechunge olungahleliwe lunqatshelwe ngokuqinile: Amaphakethe ebhethri le-lithium ezinhlobo ezahlukene namaqoqo awavunyelwe ukuthi axhunywe ngokuqondile ngaphandle kokwelashwa ngenxa yomehluko kuzici zekhemikhali yeseli yebhethri nezinqubo. .
Ukuhlola nokugcinwa okuvamile: Isistimu ehambisanayo idinga ukuhlola amandla omthamo webhethri yephakethe njalo ngenyanga, futhi uma umehluko udlula u-0.3V, idinga ukushajwa ngokuhlukile ukuze ibhalansise; Kuyanconywa ukuthi ubhalansise ngokukhuthele uhlelo lochungechunge nge-BMS njalo ngekota. .
Khetha izesekeli zekhwalithi ephezulu: Kuyadingeka ukusebenzisa amabhodi okuvikela kanye ne-BMS egunyazwe yi-UN38.3, CE, njll. Intambo yokuxhuma kufanele ikhethwe ngobubanzi bocingo obufanele ngokuya ngomthwalo wamanje ukugwema ukushisisa okubangelwa ukulahlekelwa intambo. .
Uchungechunge lokusebenza okuhambisanayo kwamaphakethe ebhethri ye-lithium kufanele kusekelwe ekuphepheni, ukulawula ngokuqinile ukuhambisana kwamapharamitha wephakethe lebhethri, nokusebenzisana namadivayisi okuvikela angochwepheshe. Ukwenza kahle lawa maphuzu abalulekile akukwazi nje ukuthuthukisa ukusebenza kahle kokukhanda ibhethri, kodwa futhi kuqinisekise ukusebenza okuzinzile kwesikhathi eside kwamaphakethe ebhethri le-lithium.
Isicelo sekhotheshini:
U-Jacqueline:jacqueline@heltec-bms.com/ +86 185 8375 6538
U-Nancy:nancy@heltec-bms.com/ +86 184 8223 7713
Isikhathi sokuthumela: May-23-2025