Brushless vs Brushed Motors: Qhov twg haum rau koj qhov project?

Kev Taw Qhia

Ob hom DC motors uas siv ntau yog brushed motors thiab brushless motors (BLDC motors). Raws li lub npe qhia, brushed motors siv brushed motors los hloov kev taw qhia, ua rau lub motor tig. Qhov sib txawv, Brushless motors hloov qhov kev ua haujlwm mechanical commutation nrog kev tswj hwm hluav taws xob. Ob hom ua haujlwm ntawm tib lub hauv paus ntsiab lus, uas yog magnetic attraction thiab magnetic repulsion ntawm lub coil thiab lub magnet tas mus li. Txhua tus muaj nws tus kheej qhov zoo thiab qhov tsis zoo, uas yuav cuam tshuam rau koj qhov kev xaiv raws li qhov xav tau tshwj xeeb ntawm koj daim ntawv thov. Kev nkag siab txog qhov sib txawv ntawm brushed DC motors thiab brushless DC motors yog qhov tseem ceeb rau kev ntsuam xyuas lawv cov kev ua tau zoo. Kev txiav txim siab xaiv ib hom dua lwm hom yog raws li ntau yam kev ntsuas, suav nrog kev ua haujlwm zoo, lub neej ntev thiab tus nqi.

Cov yam tseem ceeb rau qhov sib txawv ntawm brushed thiab brushless DC Tsav Tsheb:

#1. Kev Ua Haujlwm Zoo Dua

Cov cav tsis txhuam tau zoo dua li cov cav txhuam tau. Lawv hloov lub zog hluav taws xob mus ua lub zog kho tshuab nrog qhov tseeb dua, yog li txo cov kev pov tseg zog. Tsis zoo li cov cav txhuam DC, cov cav tsis txhuam tsis muaj kev sib txhuam lossis kev poob zog uas cuam tshuam nrog cov txhuam thiab cov commutators. Qhov no txhim kho kev ua haujlwm, ntev lub sijhawm khiav, thiab txo kev siv zog.

Ntawm qhov tod tes, cov cav brushed raug suav hais tias tsis tshua muaj txiaj ntsig zoo li cov cav brushless DC vim tias lub zog poob cuam tshuam nrog kev sib txhuam thiab kev hloov pauv zog los ntawm lub kaw lus commutator.

#2. Kev Txij Nkawm thiab Kev Siv Tau Ntev

Cov cav tsis txhuammuaj tsawg dua qhov chaw txav mus los thiab tsis muaj kev sib txuas ntawm cov khoom siv, ua rau lub neej ntev dua thiab txo qhov yuav tsum tau saib xyuas. Qhov tsis muaj txhuam tshem tawm cov teeb meem cuam tshuam nrog kev hnav txhuam thiab lwm yam teeb meem saib xyuas. Yog li ntawd, cov cav tsis txhuam feem ntau yog qhov kev xaiv pheej yig dua rau cov neeg siv.

Tsis tas li ntawd xwb, cov cav uas siv txhuam yuav tsum tau saib xyuas ntau dua vim yog kev puas tsuaj ntawm cov txhuam thiab lub commutator, uas tuaj yeem ua rau kev ua haujlwm tsis zoo thiab muaj teeb meem ntawm lub cav. Yuav kom ua tau zoo tshaj plaws, cov txhuam yuav tsum tau hloov tsis tu ncua.

#3. Suab nrov thiab kev co

Hauv cov tshuab hluav taws xob uas tsis muaj txhuam, cov hluav taws xob uas tig tau tuaj yeem tswj tau, uas pab txo cov suab nrov uas ua rau muaj kev co thiab suab nrov. Yog li ntawd, cov tshuab hluav taws xob uas tsis muaj txhuam feem ntau tsim suab nrov thiab kev co tsawg dua li cov tshuab hluav taws xob uas muaj txhuam. vim tias lawv tsis muaj txhuam lossis cov khoom sib txuas. Kev txo qis kev co thiab suab nrov ua rau tus neeg siv xis nyob dua thiab txo qhov hnav thiab tsim kua muag thaum siv ntev.

Hauv lub tshuab hluav taws xob DC uas muaj txhuam, cov txhuam thiab lub tshuab sib txuas ua haujlwm ua ke ua lub tshuab hloov pauv. Thaum lub tshuab hluav taws xob khiav, cov hloov pauv no yuav qhib thiab kaw tas li. Cov txheej txheem no tso cai rau cov hluav taws xob siab ntws los ntawm cov cua ntswj inductive rotor, tsim cov suab nrov me ntsis vim yog cov hluav taws xob loj ntws.

#4. Tus nqi thiab qhov nyuaj

Cov cav tsis txhuam feem ntau kim dua thiab nyuaj dua vim yog lub kaw lus tswj hwm hluav taws xob rau kev hloov pauv. Tus nqi siab dua ntawm cov cav tsis txhuam DC piv raubrushed DC motorsfeem ntau yog vim muaj cov khoom siv hluav taws xob siab heev uas koom nrog lawv tsim.

#5. Tsim thiab Ua Haujlwm

Cov tshuab hluav taws xob DC uas tsis muaj txhuam tsis ua haujlwm rau nws tus kheej. Lawv xav tau lub voj voog tsav uas siv cov transistors los tswj cov hluav taws xob ntws los ntawm cov kauj vuam ntawm lub cev muaj zog. Cov tshuab hluav taws xob no siv cov kev tswj hwm hluav taws xob thiab cov cuab yeej ntsuas Hall los tswj cov hluav taws xob hauv cov kauj vuam, es tsis txhob cia siab rau kev sib txuas ntawm cov khoom siv.

Cov tshuab hluav taws xob DC uas muaj txhuam yog cov uas hloov pauv nws tus kheej, uas txhais tau tias lawv tsis tas yuav muaj lub voj voog tsav tsheb los ua haujlwm. Hloov chaw, lawv siv cov txhuam tshuab thiab cov khoom siv sib txuas los tswj cov hluav taws xob hauv cov xov hlau, yog li tsim kom muaj lub zog sib nqus. Lub zog sib nqus no tsim lub zog torque, ua rau lub tshuab tig.

#6. Cov ntawv thov

Raws li tus nqi ntawmkev co motorsthiab lawv cov khoom siv hluav taws xob txuas ntxiv txo qis, qhov kev thov rau brushless motors thiab brushed motors tab tom nce ntxiv. Brushless motors nrov heev rau smartwatches, cov khoom siv kho mob, cov khoom siv zoo nkauj, robots, thiab lwm yam.

Tiam sis tseem muaj qee qhov chaw uas cov cav brushed ua rau muaj kev nkag siab ntau dua. Muaj kev siv loj heev ntawm cov cav brushed hauv cov xov tooj ntse, e-luam yeeb, cov maub los ua si video, cov tshuab zaws qhov muag, thiab lwm yam.