Dab tsi yog Hom Ntawm BLDC Tsav

Brushless DC motorsmuaj ntau hom thiab lawv tuaj yeem raug categorized raws li hom rotor, tsis muaj lossis muaj cov sensors, tus lej ntawm theem, thiab tsav txoj kev. Ntau hom brushless motors muaj cov txiaj ntsig sib txawv thiab yog li siv tau rau hauv cov xwm txheej sib txawv. Hauv qhov blog no, peb yuav muaj kev tshawb nrhiav tob dua ntawm hom brushless DC motors thiab txheeb xyuas qhov zoo thiab qhov tsis zoo ntawm txhua hom raws li qhov tsis xws li lub zog, nrawm, thiab kev ua haujlwm zoo.

 

Kev faib tawm raws li hom rotor

Raws li rotor hom brushless DC lub cev muaj zog, nws tuaj yeem muab faib ua inrunner brushless DC lub cev muaj zog thiab outrunner brushless DC lub cev muaj zog.

 

1. Inrunnner brushless DC lub cev muaj zog

Inrunner brushless DC motors muaj rotating qhov chaw (rotors) nyob rau hauv ib tug electromagnetic coil (stator) los ua ke. Hom BLDC lub cev muaj zog tsim no tso cai rau cov cua sov kom dissipated los ntawm conduction vim hais tias cov stator coil yog mounted rau ntawm lub cev muaj zog vaj tse. Thiab nws tuaj yeem ncav cuag qhov siab tshaj plaws, uas yog qhov zoo tshaj plaws rau cov ntawv thov uas xav tau cov yam ntxwv siab dua.

 

2. Outrunner brushless DC lub cev muaj zog

Outrunner brushless DC lub cev muaj zog, raws li lub npe qhia, yog tsim los tso lub rotor rau sab nraud thiab stator hauv lub rotor. Nyob rau hauv lub outrunner, brushless DC lub cev muaj zog, cov hlau nplaum, uas yog Ameslikas nyob rau hauv qhov chaw, yog ua nyob rau hauv ib daim thiab affixed rau lub plhaub. Outer rotor BLDC motors feem ntau siv ntau dua ntawm cov hlau nplaum ruaj khov ntawm lub rotor, uas txhais tau hais tias muaj zog ntau dua thiab ua haujlwm zoo dua. Txawm li cas los, nws lub ntsiab drawback yog nws qeeb ceev. Yog li ntawd, cov hom motors no zoo dua rau kev siv qis qis, siab torque.

 

Classification raws li Hall sensors

Raws li lub xub ntiag los yog tsis muaj ib lub tsev sensor, nws yuav muab faib ua sensored brushless DC motors thiab sensorless brushless DC motors

 

1. Sensored Brushless DC motors

BLDC motors nrog Hall sensors yog lub cev muaj zog uas tso siab rau cov sensors los muab cov ntaub ntawv rotor txoj haujlwm. Cov hom brushless motors no muab kev txhim khu kev qha ntawm qhov qis dua. Thaum qis qis, cov sensors muab cov ntaub ntawv raug rau kev sib hloov. Txawm li cas los xij, nws yuav muaj teeb meem nrog kev tawm tswv yim tsis raws sijhawm ntawm kev nrawm dua thiab tuaj yeem cuam tshuam los ntawm cov xwm txheej hnyav xws li kev cuam tshuam sib nqus lossis qhov kub thiab txias, uas tuaj yeem cuam tshuam rau kev ua haujlwm sensor thiab yog li ntawd lub cev muaj zog.

 

2. Sensorless Brushless DC Tsav

Sensorless brushless DC motors tsis siv Hall sensors; Hloov chaw, nws cov maub los tso siab rau lub txee electromotive quab yuam tsim nyob rau hauv stator coils los xam rotor txoj hauj lwm. Hom brushless DC motors no muab kev pom zoo ntawm kev kub ceev. Koj tseem tuaj yeem siv lawv hauv qhov chaw kub kub vim lawv tsis siv cov sensors. Cov hom motors no tsim nyog rau kev siv high-speed, tsis tshua muaj nqi vim hais tias lub cev muaj zog tsis tuaj yeem tswj tau raug thaum lub txee electromotive quab yuam tsawg dhau los yog nyob ruaj ruaj kom nyeem tau los ntawm tus maub los.

 

Kev faib tawm raws li Phase

Raws li tus naj npawb ntawm theem, brushless DC motors tuaj yeem muab faib ua ib-theem brushless DC motors, ob-theem brushless DC motors, thiab peb-theem brushless DC motors.

 

1. Ib theem BLDC lub cev muaj zog

Lub rotor ntawm ib-theem brushless lub cev muaj zog muaj ib khub ntawm sab qaum teb thiab sab qab teb ncej. Muaj qhov zoo thiab qhov tsis zoo rau qhov no DC brushless lub cev muaj zog tsim. Qhov zoo dua yog tias nws tuaj yeem pib mus txog qhov nrawm heev. Qhov tsis zoo yog tias qhov kev ua tau zoo ntawm ib-theem BLDC lub cev muaj zog txo qis ntawm qhov nrawm, uas cuam tshuam rau kev sib hloov thiab kev ua haujlwm zoo.

 

2. Ob theem BLDC Tsav

Ob theem motors khiav smoother thiab muaj ntau npaum li ib theem motors. Txawm li cas los xij, lawv muaj cov kev tswj xyuas yooj yim piv rau peb-theem motors. Thaum ib-theem lub cev muaj zog tsim nyog rau kev siv yooj yim, peb-theem motors yog qhov zoo tshaj hauv cov ntawv siv hluav taws xob siab tab sis yuav tsum tau tswj ntau dua. Ob theem BLDC lub cev muaj zog, ntawm qhov tod tes, ua ke ua haujlwm siab nrog kev tswj xyuas yooj yim rau nruab nrab lub zog thiab kev siv nyuaj.

 

3. Peb Theem BLDC Tsav

Peb-theem brushless motors siv ntau tus ncej ntawm lub rotor, mus txog 12 lossis ntau dua. Cov ncej sab nraud sib ntsib. Ntau tus ncej muab kev sib hloov smoother tab sis ntawm kev siv ceev. Yog li ntawd, cov hom brushless motors tsis muaj peev xwm ua tiav qhov kev sib hloov ceev thiab tsim nyog rau kev siv qis qis, siab torque.

 

Kev faib tawm raws li Txoj Kev Tsav Tsheb

 

1. Sine Wave Tsav Brushless DC Tsav:

Sine yoj tsav rau brushless DC motors suav nrog muab lub zog nrog lub sinusoidal waveform. Txoj kev no muab kev ua haujlwm zoo dua thiab ntsiag to piv rau lwm hom tsav. Nws txo torque ripple thiab minimizes hluav taws xob nrov. Lub sinusoidal waveform zoo ua raws li tus cwj pwm zoo tshaj plaws, ua rau muaj kev ua tau zoo dua qub thiab txo qis kev vibrations. Hom kev tsav no feem ntau yog siv rau hauv cov ntawv thov uas muaj kev tswj xyuas meej thiab kev cuam tshuam ntawm electromagnetic tsawg yog qhov tseem ceeb, xws li hauv kev ua haujlwm siab robotics lossis hluav taws xob tsheb.

 

2. Square Wave Tsav Brushless DC Tsav:

Square yoj tsav rau brushless DC motors suav nrog muab lub zog nrog lub xwmfab waveform. Thaum tswj tau yooj yim dua, nws nyiam tsim ntau lub zog ripple thiab suab nrov hluav taws xob ntau dua piv rau sine yoj tsav. Square yoj tsav yog tsim rau cov ntawv thov uas tus nqi tsim nyog thiab kev tswj ncaj nraim yog qhov tseem ceeb, xws li hauv cov tshuab hluav taws xob yooj yim lossis cov khoom siv hluav taws xob qis. Txawm li cas los xij, kev lag luam tawm yog qhov kev sib haum xeeb ntawm kev ua kom zoo thiab ua haujlwm zoo thaum piv rau sine yoj tsav.

 

Ntau hombrushless DC motorsmuab cov txiaj ntsig sib txawv hauv cov ntawv thov tshwj xeeb. SIT yog ib qho ntawm BLDC lub cev muaj zog loj tshaj plaws hauv Suav teb. Peb muab BLDC motors zoo rau peb cov neeg siv khoom nrog kev pabcuam zoo tom qab muag. Tsuas yog tiv tauj peb nrog koj cov kev xav tau, thiab peb pab pawg engineering yuav nrhiav kev daws teeb meem zoo tshaj plaws rau koj.