Tus yuam sij kom txo qis qhov tsis ua hauj lwm ntawm brushless DC motors yog nyob rau hauv kev txhim kho qib kev tiv thaiv, raug txuam nrog lub zog tsav, thiab optimizing qhov chaw khiav hauj lwm. Los ntawm kev tswj hwm peb yam no, cov teeb meem tshwm sim xws li lub cev muaj zog overheating, rwb thaiv tsev tsis ua haujlwm, thiab cov khoom siv kho tshuab tuaj yeem txo qis, txo qis qhov tsis ua haujlwm rau kev lag luam- theem ua.
Txhim kho qib kev tiv thaiv (IP Rating) kom tiv thaiv ib puag ncig corrosion
Kev tiv thaiv qib ntawm lub cev muaj zog hauv tsev ncaj qha txiav txim siab nws txoj kev ntseeg siab hauv qhov chaw hnyav xws li av noo thiab plua plav.
Pom zoo qib tiv thaiv:
General Industrial Environments: Ntau dua los yog sib npaug rau IP54 (puv tsis taus, splashproof)
High Humidity los yog Dusty Scenarios (xws li, kev ua zaub mov, khoom siv sab nraum zoov): Ntau dua los yog sib npaug ntawm IP65 (ua kom tsis muaj plua plav, dej jetproof)
Qhov chaw ntub dej ntawm ntug dej hiav txwv lossis kev ntxuav tu: IP67 / IP68 yog qhov zoo dua los tiv thaiv cov tshuaj ntsev thiab dej nkag tuaj yeem ua rau muaj kev puas tsuaj ntawm cov rwb thaiv tsev.
Cov teebmeem tiag:
Ua tiav qhov kev ntsuam xyuas IP65 lossis siab dua tuaj yeem txo qhov tsis ua haujlwm los ntawm kev ya raws thiab plua plav los ntawm ntau dua 30% ^[A4]^. 1. Tsis tu ncua xyuas qhov kev laus ntawm lub nplhaib sealing thiab hloov tam sim ntawd kom ntseeg tau tias kev tiv thaiv kev ua haujlwm tsis tuaj yeem degrade.
Precisely phim lub kaw lus tsav kom tsis txhob muaj hluav taws xob puas.
Kwv yees li 15% ntawm lub cev muaj zog tsis ua haujlwm yog vim kev xaiv tsav tsheb tsis raug lossis tsis muaj kev tiv thaiv kev ua haujlwm ^[A4]^. Kev teeb tsa kom zoo tuaj yeem tiv thaiv cov teeb meem xws li overcurrent, overvoltage, thiab theem poob.
Cov ntsiab lus tseem ceeb sib xws:
Voltage/tam sim no margin: Tus neeg tsav tsheb qhov ntsuas tam sim no yuav tsum yog 20% -30% siab dua lub cev muaj zog lub ncov tam sim no kom tso cai rau kev nyab xeeb.
Kev tiv thaiv kev ua haujlwm: Xyuas kom tus neeg tsav tsheb muaj ntau yam kev tiv thaiv, suav nrog overcurrent, overvoltage, undervoltage, thiab overtemperature tiv thaiv.
Tswj txoj kev yoog raws: Xaiv cov yoj square (trapezoidal yoj) lossis sine yoj (FOC) tswj raws li daim ntawv thov. Rau siab - cov xwm txheej muaj tseeb, FOC yuav tsum tau ua qhov tseem ceeb los txo cov torque ripple.
Pom zoo xyaum:
Siv tus maub los nrog cov chips tiv thaiv kev sib koom ua ke (xws li IR2136) kom ua tiav cov khoom siv kho vajtse- theem ceev teb. Tsis tu ncua xyuas Hall sensor teeb liab thiab winding rwb thaiv tsev tiv thaiv kom tsis txhob muaj kev hloov pauv txawv txav thiab inter-tig luv luv circuits.
