BLDC (Brushless DC) lub cev muaj zog tig li cas?
Dec 03, 2025
Tso lus
Kev sib hloov ntawm BLDC lub cev muaj zog yog ua tiav los ntawm kev tswj cov khoom siv hluav taws xob raws li qhov tam sim no hauv stator windings, tsim kom muaj qhov sib nqus sib nqus uas ua rau cov hlau nplaum ruaj khov rotor tig mus tas li.
1. Cov qauv hauv paus: Lub stator muaj ntau txheej ntawm winding coils uas tsim kom muaj qhov chaw sib nqus tswj tau thaum muaj zog. Lub rotor yog tsim los ntawm cov hlau nplaum ruaj khov ua los ntawm cov khoom sib nqus zoo heev, muaj qhov ruaj khov magnetic teb polarity.
2. Tsim cov Rotating Sib Nqus Field: Tus maub los energizes txhua theem winding ntawm lub stator sequentially raws li ib tug preset logical sequence. Piv txwv li, energizing theem A, B, thiab C ua ntu zus tsim cov hlau nplaum hauv ib qho kev taw qhia tshwj xeeb hauv stator txhua zaus. Los ntawm kev hloov cov theem energized sai sai, ib qho kev sib txuas sib nqus tsis tu ncua yog tsim nyob rau hauv qhov chaw.
3. Rotor Rotation: Raws li lub hauv paus ntsiab lus ntawm kev sib nqus sib nqus ntawm cov ncej sib txawv, lub rotating stator magnetic teb tsis tu ncua attracts cov hlau nplaum ntawm cov hlau nplaum ruaj khov rotor, ua rau lub rotor tig mus rau qhov kev taw qhia ntawm stator magnetic teb, yog li hloov hluav taws xob mus rau hauv lub zog txhua yam.
4. Lub luag haujlwm tseem ceeb ntawm Electronic Commutation
Txhawm rau kom muaj kev sib hloov tas mus li, tus maub los yuav tsum saib xyuas lub rotor lub sijhawm tiag - txoj haujlwm. Qhov no feem ntau ua tiav siv cov teeb liab los ntawm txoj haujlwm nrhiav pom cov ntsiab lus xws li Hall effect sensors kom paub meej tias thaum twg thiab theem twg winding yuav tsum muaj zog. Cov txheej txheem no yog ua tiav tag nrho los ntawm kev siv hluav taws xob hauv hluav taws xob, hloov cov txhuam txhuam thiab cov qauv sib txuas ntawm cov tsoos brushed motors. Qhov no yog vim li cas nws thiaj li hu ua hluav taws xob commutation, thiab nws yog qhov laj thawj tseem ceeb rau kev ua haujlwm siab, kev ntseeg siab, thiab lub neej ntev ntawm brushless motors.
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