- 08
- Dec
Umqondo ojwayelekile wohlobo lwebhethri ye-lithium nokukhetha umthamo
Uhlobo nokukhethwa kwamandla.
Okokuqala, sidinga ukubala umjikelezo oqhubekayo webhethri ngokusekelwe kumandla ethu emoto (ukusebenzisa amandla, isivinini somjikelezo ojwayelekile sihambisana namandla okusebenza ahambisanayo). Isibonelo, uma injini iqhubeka nokusebenza ku-20 (1000W motor ku-48V), ibhethri kufanele ikwazi ukuhlinzeka ngama-20 okwamanje ekushiseni okuphansi kakhulu isikhathi eside (ngisho noma izinga lokushisa langaphandle lingama-degree angu-35 ehlobo, izinga lokushisa lebhethri kufanele lilawulwe ku-50 degrees). Ngaphezu kwalokho, uma i-48V yamanje ingu-20A, i-overvoltage kufanele iphindwe kabili (96V, njenge-ECpuLevel3), futhi yamanje kufanele igcinwe cishe ku-50A. Uma uthanda ukusebenzisa i-over-voltage isikhathi eside, sicela ukhethe ibhethri elingahlinzeka ngo-50A ngokuqhubekayo (noma unake ukwenyuka kwezinga lokushisa). Lapha, ibhethri iyaqhubeka nokusebenza okwamanje esikhundleni somthamo wokuchithwa kwebhethri womkhiqizi. Ngokwezentengiselwano, ama-C ambalwa (noma amakhulu ama-ampere) amandla okukhipha ibhethri, futhi kulawa mandla amanje, ukushisa kwebhethri kulula kakhulu, uma ukuchithwa kokushisa kungalungile, impilo yebhethri izoba mfushane kakhulu. (Indawo yebhethri esetshenziswa ezimotweni zethu zikagesi yenziwe ngamabhethri, angenazikhala, avalwe ngokuqinile, ingasaphathwa indlela yokupholisa umoya ngempoqo). Indawo yethu yebhizinisi inokhahlo kakhulu. Ukukhipha amandla ebhethri kufanele kwehliswe. Ukuhlolwa komthamo wamanje wokuchithwa kwebhethri kusekelwe ekukhuphukeni kwamanje kwezinga lokushisa lebhethri.
Okuwukuphela kwesimiso okuxoxwe ngaso lapha ukukhuphuka kwezinga lokushisa kwebhethri ngesikhathi sokusetshenziswa (ukushisa okuphezulu yisitha sempilo yebhethri ye-lithium). Izinga lokushisa lebhethri kufanele ligcinwe lingaphansi kuka-50°C (okungcono libe phakathi kuka-20 no-30°C). Lokhu kusho ukuthi uma ibhethri ye-lithium capacitive (ekhishwe ku-0.5C), ukukhishwa okuqhubekayo okwamanje kwe-20A kufanele kube kukhulu kunomthamo we-40ah (yebo, into ebaluleke kakhulu ukubuka ukumelana kwangaphakathi kwebhethri) . Uma kuwuhlobo lwamandla i-lithium, kuvamile ukuthi ikhiphe ku-1C. Ngisho ne-A123 ultra-low internal resistance power supply ibhethri ye-lithium ngokuvamile ikhishwa kangcono ku-1C (okungcono ingabi ngaphezu kuka-2C, ukukhishwa kwe-2C kungasebenza kuphela isigamu sehora ukushaja, futhi inani lokusetshenziswa alilikhulu). Izinto ezinjengokukhethwa komthamo wemoto, ubukhulu bendawo yokugcina, isabelomali sezindleko zomuntu siqu, nosayizi webanga lemisebenzi edingwa imoto. (Umthamo webhethri ye-lithium esetshenziselwa ukunikezwa kwamandla ngokuvamile mancane)