Qhov sib txawv ntawm Brushed thiab Brushless Permanent Magnet DC Motors

I. Kev sib txawv

1. Txhuam cov hlau nplaum ruaj khov DC motors feem ntau muaj cov stator, rotor, thiab cov txhuam hniav. Lub stator muaj cov hlau nplaum (qhov txhab lossis hom hlau nplaum tas mus li), thiab lub rotor muaj windings.

2. Brushless hlau nplaum ruaj khov DC motors feem ntau muaj cov stator thiab rotor, tab sis tsis muaj cov txhuam hniav.

II. Txawv Cov Cai Ua Haujlwm

1. Nyob rau hauv ib tug brushed mus tas li hlau nplaum DC lub cev muaj zog, tom qab energization, ib tug hlau nplaum yog tsim nyob rau hauv lub rotor. Muaj ib lub kaum sab xis ntawm cov hlau nplaum ntawm lub stator thiab rotor. Kev sib nrig sib nyiam ntawm stator thiab rotor magnetic teb ua rau lub cev muaj zog tig. Hloov txoj haujlwm ntawm cov txhuam hniav hloov cov kev taw qhia ntawm lub kaum sab xis ntawm stator thiab rotor sib nqus ncej, yog li hloov cov kev taw qhia ntawm kev sib hloov.

2. Brushless hlau nplaum ruaj khov DC motors feem ntau siv hluav taws xob sib hloov. Cov coils nyob ruaj ruaj thaum cov hlau nplaum tig. Hall effect sensors ntes txoj hauj lwm ntawm cov hlau nplaum ruaj khov ncej. Raws li qhov kev tshawb pom no, hluav taws xob circuitry hloov cov kev taw qhia ntawm tam sim no nyob rau hauv lub coils nyob rau hauv lub sij hawm kom paub tseeb tias lub zog sib nqus raug tsim los tsav lub cev muaj zog.

III. Qhov zoo sib txawv

1. DC brushed motors muaj cov lus teb ceev ceev, pib lub zog siab, hloov ceev ceev, thiab yuav luag imperceptible vibration ntawm xoom mus rau qhov siab tshaj plaws. Lawv tuaj yeem tuav cov khoom loj dua thaum pib.

2. Brushless motors muaj siab pib tsis kam (inductive reactance), ua rau lub zog qis, pib lub zog qis, lub suab nrov thaum pib, thiab muaj zog vibration. Lawv tuaj yeem tuav cov khoom me me thaum pib.