Popanga kapena kukulitsa makina ogwiritsira ntchito mabatire, funso lofala limabuka: Kodi mabatire awiri okhala ndi magetsi ofanana angalumikizidwe motsatizana? Yankho lalifupi ndilakutiinde, koma ndi chofunikira kwambiri:mphamvu yolimbana ndi magetsi ya dera lotetezaziyenera kuunikidwa mosamala. Pansipa, tikufotokoza tsatanetsatane waukadaulo ndi njira zodzitetezera kuti zitsimikizire kuti ntchitoyo ndi yotetezeka komanso yodalirika.
Kumvetsetsa Malire: Kuteteza Kulekerera kwa Voltage ya Dera
Ma batire a lithiamu nthawi zambiri amakhala ndi Protection Circuit Board (PCB) kuti apewe kudzaza kwambiri, kutulutsa mopitirira muyeso, komanso ma short circuits. Chinthu chofunikira kwambiri pa PCB iyi ndimphamvu yamagetsi imapirira kuyesedwa kwa MOSFETs zake(ma switch amagetsi omwe amalamulira kayendedwe ka mphamvu).
Chitsanzo cha Nkhani:
Mwachitsanzo, tengani mabatire awiri a LiFePO4 okhala ndi maselo anayi. Paketi iliyonse ili ndi magetsi okwanira 14.6V (3.65V pa selo iliyonse). Ngati alumikizidwa motsatizana, magetsi awo ophatikizana amakhala29.2VPCB yodzitetezera ya batri ya 12V nthawi zambiri imapangidwa ndi ma MOSFET omwe amayesedwa kuti agwiritsidwe ntchito35–40VPankhaniyi, mphamvu yonse yamagetsi (29.2V) imagwera mkati mwa malo otetezeka, zomwe zimathandiza kuti mabatire azigwira ntchito bwino motsatizana.
Kuopsa Kopitirira Malire:
Komabe, ngati mulumikiza mapaketi anayi otere motsatizana, magetsi onse adzapitirira 58.4V—kupitirira kulekerera kwa 35–40V kwa ma PCB wamba. Izi zimapanga ngozi yobisika:
Sayansi Yomwe Imayambitsa Chiwopsezochi
Mabatire akalumikizidwa motsatizana, mavoteji awo amawonjezeka, koma ma circuit oteteza amagwira ntchito pawokha. Munthawi yabwinobwino, voteji yophatikizana imapatsa mphamvu katundu (monga chipangizo cha 48V) popanda mavuto. Komabe, ngatibatire imodzi imayambitsa chitetezo(monga, chifukwa cha kutulutsa mphamvu mopitirira muyeso kapena kupitirira muyeso), ma MOSFET ake adzachotsa paketiyo ku dera lozungulira.
Pakadali pano, mphamvu yonse ya mabatire otsala mu mndandandawu imagwiritsidwa ntchito pa ma MOSFET olumikizidwa. Mwachitsanzo, mu dongosolo la mapaketi anayi, PCB yolumikizidwa ingayang'ane pafupifupi58.4V—kupitirira mlingo wake wa 35–40V. Ma MOSFET amatha kulephera chifukwa chakusokonezeka kwa magetsi, kuletsa kosatha dera lotetezera ndikusiya batri ili pachiwopsezo cha zoopsa zamtsogolo.
Mayankho a Maulumikizidwe Otetezeka a Mndandanda
Kuti mupewe zoopsa izi, tsatirani malangizo awa:
1.Yang'anani Zofunikira za Wopanga:
Nthawi zonse onetsetsani ngati PCB yoteteza batri yanu yasankhidwa kuti igwiritsidwe ntchito motsatizana. Ma PCB ena apangidwa mwapadera kuti azitha kugwiritsa ntchito ma voltage ambiri m'makonzedwe a ma multi-pack.
2.Ma PCB Opangidwa Mwamakonda Okhala ndi Voltage Yaikulu:
Pa mapulojekiti omwe amafuna mabatire angapo motsatizana (monga, malo osungira magetsi a dzuwa kapena makina a EV), sankhani ma circuit oteteza okhala ndi ma MOSFET apamwamba kwambiri. Izi zitha kupangidwa kuti zipirire mphamvu yonse yamagetsi anu.
3.Kapangidwe Koyenera:
Onetsetsani kuti mabatire onse omwe ali mu mndandandawu akugwirizana ndi mphamvu, zaka, ndi thanzi kuti muchepetse chiopsezo cha njira zodzitetezera zosafanana.
Maganizo Omaliza
Ngakhale kulumikiza mabatire amagetsi ofanana motsatizana n'kotheka, vuto lenileni lili pakuonetsetsa kutichitetezo chamagetsi chimatha kuthana ndi kupsinjika kwamagetsi ochulukirapoMwa kuyika patsogolo zofunikira za zigawo ndi kapangidwe koyenera, mutha kukulitsa bwino makina anu a batri kuti agwiritsidwe ntchito ndi magetsi amphamvu kwambiri.
Ku DALY, timaperekamayankho a PCB osinthikandi ma MOSFET amphamvu kwambiri kuti akwaniritse zosowa zapamwamba zolumikizirana. Lumikizanani ndi gulu lathu kuti mupange makina amphamvu otetezeka komanso odalirika kwambiri pamapulojekiti anu!
Nthawi yotumizira: Meyi-22-2025
