Kev tshawb fawb txog Direct Current Resistance
Kev tshawb fawb txog Direct Current Resistance,
Kev tshawb fawb txog Direct Current Resistance,
▍ SIRIM Certification
Rau kev ruaj ntseg ntawm tib neeg thiab khoom vaj khoom tsev, Malaysia tsoom fwv tsim cov khoom pov thawj cov tswv yim thiab tso saib xyuas cov khoom siv hluav taws xob, cov ntaub ntawv & multimedia thiab cov ntaub ntawv tsim kho. Cov khoom tswj tau tuaj yeem xa tawm mus rau Malaysia tsuas yog tom qab tau txais daim ntawv pov thawj khoom pov thawj thiab daim ntawv lo.
▍ SIRIM QAS
SIRIM QAS, ib lub koom haum ua lag luam tag nrho ntawm Malaysian Institute of Industry Standards, yog tib lub chaw muab ntawv pov thawj ntawm Malaysian lub koom haum tswj hwm hauv tebchaws (KDPNHEP, SKMM, thiab lwm yam).
Daim ntawv pov thawj roj teeb thib ob yog tsim los ntawm KDPNHEP (Malaysian Ministry of Domestic Trade thiab Consumer Affairs) raws li ib qho kev lees paub. Tam sim no, cov chaw tsim khoom, cov khoom lag luam thiab cov neeg lag luam tuaj yeem thov daim ntawv pov thawj rau SIRIM QAS thiab thov rau kev sim thiab ntawv pov thawj ntawm cov roj teeb thib ob nyob rau hauv hom ntawv pov thawj.
▍ SIRIM Certification- Secondary Battery
Lub roj teeb thib ob tam sim no raug lees paub los ntawm daim ntawv pov thawj tab sis nws yuav nyob rau hauv qhov yuav tsum tau lees paub sai sai. Hnub kawg uas yuav tsum tau ua yog nyob rau lub sijhawm tshaj tawm Malaysian. SIRIM QAS twb tau pib lees txais daim ntawv thov.
Secondary roj teeb ntawv pov thawj Standard: MS IEC 62133: 2017 los yog IEC 62133: 2012
▍ Vim li cas MCM?
● Tsim kom muaj kev sib pauv tswv yim zoo thiab kev sib pauv xov xwm nrog SIRIM QAS uas tau muab ib tus kws tshaj lij los daws cov haujlwm MCM thiab cov lus nug nkaus xwb thiab qhia cov ntaub ntawv tseeb tseeb ntawm thaj chaw no.
● SIRIM QAS lees paub MCM cov ntaub ntawv xeem kom cov qauv tuaj yeem kuaj hauv MCM es tsis txhob xa mus rau Malaysia.
● Los muab kev pabcuam ib-nres rau Malaysian ntawv pov thawj ntawm roj teeb, adapters thiab xov tooj ntawm tes.
Thaum lub sij hawm them thiab tawm ntawm cov roj teeb, lub peev xwm yuav cuam tshuam los ntawm overvoltage tshwm sim los ntawm kev tiv thaiv sab hauv. Raws li qhov tseem ceeb ntawm cov roj teeb, kev tiv thaiv sab hauv yog tsim nyog rau kev tshawb fawb los soj ntsuam cov roj teeb degradation. Internal resistance ntawm ib lub roj teeb muaj: Ohm internal kuj (RΩ) -Qhov kev tiv thaiv los ntawm tabs, electrolyte, separator thiab lwm yam Cheebtsam.Charges kis tau tus mob internal resistance (Rct) - Cov kuj ntawm ions dhau tabs thiab electrolyte. Qhov no sawv cev rau qhov nyuaj ntawm cov tshuaj tiv thaiv tabs. Feem ntau peb tuaj yeem ua kom cov conductivity kom txo tau qhov kev tiv thaiv no.Polarization Resistance (Rmt) yog qhov kev tiv thaiv sab hauv los ntawm qhov ntom ntom tsis sib xws ntawm lithium ions ntawm cathode thiab anode. Polarization Resistance yuav siab dua nyob rau hauv cov xwm txheej zoo li them rau qhov kub thiab txias. ACIR yog qhov kev tiv thaiv sab hauv ntsuas hauv 1k Hz AC tam sim no. Qhov kev tiv thaiv sab hauv no tseem hu ua Ohm tsis kam. Qhov tsis txaus ntawm cov ntaub ntawv yog tias nws tsis tuaj yeem ncaj qha qhia kev ua haujlwm ntawm lub roj teeb. DCIR yog ntsuas los ntawm qhov yuam kev tam sim no nyob rau hauv ib lub sij hawm luv luv, nyob rau hauv uas lub voltage tsis tu ncua hloov. Yog tias qhov tam sim no tam sim no yog kuv, thiab qhov kev hloov ntawm qhov hluav taws xob hauv lub sijhawm luv luv yog ΔＵ, raws li Ohm txoj cai Ｒ＝ΔＵ／Ｉ Peb tuaj yeem tau txais DCIR. DCIR tsis yog tsuas yog Ohm sab hauv tsis kam, tab sis kuj them tus nqi hloov pauv thiab polarization tsis kam.
