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

Taw qhia

Ob hom ntawm DC motors yog brushed motors thiab brushless motors (BLDC motors). Raws li lub npe implies, brushed motors siv txhuam kom commutate kev taw qhia, cia lub cav tig. Hauv qhov sib piv, Brushless motors hloov cov khoom siv sib txuas nrog kev tswj hluav taws xob. Ob hom ua haujlwm ntawm tib lub hauv paus ntsiab lus, uas yog sib nqus attraction thiab sib nqus repulsion ntawm lub kauj thiab cov hlau nplaum ruaj khov. Txhua tus muaj nws qhov zoo thiab qhov tsis zoo, uas tuaj yeem cuam tshuam koj txoj kev xaiv raws li cov cai 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. Qhov kev txiav txim siab xaiv ib hom dua lwm tus yog nyob ntawm ntau yam txheej txheem, nrog rau kev ua tau zoo, lub neej ntev thiab tus nqi.

Yam tseem ceeb rau qhov sib txawv ntawm brushed thiab brushless DC Tsav:

#1. Ua tau zoo dua

Brushless motors muaj txiaj ntsig zoo dua li brushed motors. Lawv hloov hluav taws xob hluav taws xob mus rau hauv lub tshuab hluav taws xob nrog ntau dua qhov tseeb, yog li txo cov hluav taws xob pov tseg. Tsis zoo li brushed DC motors, brushless motors tsis muaj kev sib txhuam los yog lub zog poob cuam tshuam nrog txhuam thiab commutators. Qhov no txhim kho kev ua tau zoo, ncua sij hawm khiav, thiab txo kev siv zog.

Conversely, brushed motors raug suav hais tias tsawg dua li brushless DC motors vim lub zog poob cuam tshuam nrog kev sib txhuam thiab lub zog hloov mus los ntawm cov kab ke sib txuas.

#2. Kev tu thiab kav ntev

Brushless motorsmuaj tsawg dua qhov txav thiab tsis muaj kev sib txuas ntawm cov tshuab, ua rau lub neej ntev dua thiab txo cov kev tu ncua. Qhov tsis muaj txhuam tshem tawm cov teeb meem cuam tshuam nrog txhuam hnav thiab lwm yam teeb meem txij nkawm. Yog li ntawd, brushless motors feem ntau yog ib qho kev xaiv zoo dua rau cov neeg siv.

Tsis tas li ntawd, brushed motors xav tau kev saib xyuas ntau dua vim hnav thiab rhuav tshem ntawm cov txhuam hniav thiab cov commutator, uas tuaj yeem ua rau txo qis kev ua haujlwm thiab teeb meem ntawm lub cev muaj zog. Yuav kom tswj tau qhov kev ua tau zoo, cov txhuam hniav yuav tsum tau hloov tsis tu ncua.

#3. Suab nrov thiab vibration

Hauv brushless motors, lub winding tam sim no tuaj yeem tswj tau, uas yuav pab txo qis torque pulsations uas tuaj yeem ua rau muaj kev vibration thiab lub suab nrov. Yog li ntawd, brushless motors feem ntau tsim suab nrov thiab kev vibration dua li brushed motors. vim lawv tsis muaj txhuam los yog commutators. Qhov txo qis hauv kev vibration thiab suab nrov txhim kho cov neeg siv kev nplij siab thiab txo qis hnav thiab tsim kua muag ntawm kev siv txuas ntxiv.

Nyob rau hauv ib tug txhuam DC lub cev muaj zog, cov txhuam hniav thiab commutator ua hauj lwm ua ke raws li ib tug switching mechanism. Thaum lub cev muaj zog khiav, cov keyboards no qhib thiab kaw tas li. Cov txheej txheem no tso cai rau cov dej ntws siab ntws los ntawm inductive rotor windings, ua rau lub suab nrov me ntsis vim yog qhov loj tam sim no.

#4. Nqi thiab complexity

Brushless motors zoo li yuav kim dua thiab nyuaj vim lub tshuab hluav taws xob tswj kev sib hloov. Tus nqi siab dua ntawm brushless DC motors piv raubrushed DC motorsfeem ntau yog vim cov khoom siv hluav taws xob siab heev koom nrog hauv lawv cov qauv tsim.

#5. Tsim thiab ua haujlwm

Brushless DC motors tsis yog tus kheej-commutating. Lawv xav tau lub voj voog tsav uas siv cov transistors los tswj cov tam sim no ntws los ntawm lub cev muaj zog winding coils. Cov motors no siv hluav taws xob tswj thiab Hall effect sensors los tswj cov tam sim no nyob rau hauv windings, es tsis txhob cia siab rau txhua yam kev sib txuas.

Brushed DC motors yog tus kheej-commutated, uas txhais tau hais tias lawv tsis xav tau ib tug tsav tsheb Circuit Court ua hauj lwm. Hloov chaw, lawv siv cov txhuam txhuam thiab cov commutators los tswj cov tam sim no hauv cov windings, yog li tsim kom muaj qhov sib nqus. Qhov no magnetic teb tsim torque, ua rau lub cev muaj zog tig.

#6. Daim ntawv thov

Raws li tus nqi ntawmvibration motorsthiab lawv cov khoom siv hluav taws xob cuam tshuam txuas ntxiv txo qis, qhov kev thov rau brushless motors thiab brushed motors yog nce. Brushless motors yog nrov heev rau smartwatches, khoom siv kho mob, khoom siv zoo nkauj, neeg hlau, thiab lwm yam.

Tab sis tseem muaj qhov chaw uas brushed motors ua rau kev nkag siab ntau dua. Muaj ib daim ntawv thov loj ntawm txhuam cov motors hauv smartphones, e-luam yeeb, video game controllers, eye massagers, thiab lwm yam.