Kangangeminyaka eliqela, besibona iimoto ezingenabrashi ziqala ukulawula isixhobo esingenantambo kwishishini lesixhobo sobuchwephesha. Oku kuhle, kodwa yintoni ingxaki enkulu? Ingaba ibalulekile ngenene nje ukuba ndingaqhuba eso sikrufu somthi? um, ewe. Kukho iiyantlukwano ezibalulekileyo kunye neziphumo xa ujongene neenjini ezixutywe kunye neemoto ezingenazintambo.
Phambi kokuba sijule kwibhrashi eneenyawo ezimbini kunye neenjini ezizii-brushless, masiqale siqonde ulwazi olusisiseko lweyona migaqo yokusebenza yeemoto ze-DC. Xa kuziwa ekuqhubeni iimotor, yonke into inxulumene nemagnethi. Imagnethi ezichasayo zitsalelana. Umbono osisiseko wemoto ye-DC kukugcina umrhumo ochaseneyo wombane wenxalenye ejikelezayo (i-rotor) etsalwa kwimagnethi engashukumiyo (stator) phambi kwayo, ngaloo ndlela itsala phambili. Kufana nokubeka i-Boston Butter Donut kwinduku ephambi kwam xa ndibaleka-ndizakuhlala ndizama ukuyibamba!
Umbuzo yindlela yokugcina i-donuts ihamba. Akukho ndlela ilula yokuyenza. Iqala ngeseti yeemagnethi ezisisigxina (imagnethi ezisisigxina). Iseti ye-electromagnets itshintsha intlawulo (ukubuyisela umva i-polarity) njengoko ijikeleza, ngoko kusoloko kukho umazibuthe osisigxina onentlawulo echaseneyo ekwaziyo ukuhamba. Ukongeza, intlawulo efanayo efunyanwa yikhoyili ye-electromagnetic njengoko itshintsha iya kuyityhala kude ikhoyili. Xa sijonga iimotor ezixutyiweyo kunye neemotorless brush, indlela i-electromagnet itshintsha ngayo i-polarity ngundoqo.
Kwimoto ebrashiweyo, kukho izinto ezine ezisisiseko: iimagnethi ezisisigxina, izixhobo zokuxhobisa, iiringi ezijikelezayo kunye neebrashi. Umazibuthe osisigxina wenza umphandle wesixhobo kwaye akashukumi (stator). Enye ihlawuliswa kakuhle kwaye enye ihlawuliswa kakubi, idala intsimi yamagnetic esisigxina.
I-armature yikhoyili okanye uthotho lweekhoyili eziba yi-electromagnetic xa inikwe amandla. Le yinxalenye ejikelezayo (i-rotor), ngokuqhelekileyo yenziwe ngobhedu, kodwa i-aluminium ingasetyenziswa.
Iringi ye-commutator igxininiswe kwikhoyili ye-armature kubini (i-2-pole configuration), ezine (i-4-pole configuration) okanye amacandelo amaninzi. Zijikeleza kunye ne-armature. Ekugqibeleni, iibrashi zekhabhoni zihlala kwindawo kwaye zidlulisele intlawulo kumhambisi ngamnye.
Nje ukuba i-armature ibe namandla, ikhoyili etshajiweyo iya kutsalelwa ngakwimagnethi esisigxina echase ngokuchasanayo. Xa iringi ye-commutator ngaphezulu kwayo iphinda ijikeleze, isuka kuqhagamshelo lwebrashi yekhabhoni ukuya kwelinye. Xa ifika kwibrashi elandelayo, iya kufumana ukuguqulwa kwe-polarity kwaye ngoku itsalwe yenye umazibuthe osisigxina ngelixa igxothwa kwaluhlobo olufanayo lwentlawulo yombane. Ngokucacileyo, xa i-commutator ifikelela kwibrashi engalunganga, ngoku itsalwa yimagnethi esisigxina. Umhambisi ufika kwangethuba ukuze enze udibaniso kunye nebrashi ye-electrode efanelekileyo kwaye alandele kwimagnethi engapheliyo engalunganga. Iibhrashi zikwizibini, ngoko ke ikhoyili evumayo iya kutsalela ngakwimagnethi ekhabazayo, kwaye icoil ekhabayo iyakutsalela ngakumazibuthe afanelekileyo ngaxeshanye.
Ingathi ndiyikhoyili yesixhobo ndileqa iBoston Butter Donut. Ndasondela, kodwa emva koko ndatshintsha ingqondo yam kwaye ndalandela i-smoothie enempilo (i-polarity yam okanye umnqweno wam utshintshile). Emva koko, iidonathi zizityebi kwiikhalori kunye namafutha. Ngoku ndileqa i-smoothies ngelixa ndityhalwa kude ne-Boston cream. Ukufika kwam apho, ndabona ukuba iidonathi zingcono kakhulu kune-smoothies. Ngethuba nje nditsala i-trigger, rhoqo xa ndifika kwi-brush elandelayo, ndiya kutshintsha ingqondo yam kwaye kwangaxeshanye ndixoshe izinto endizithandayo kwisangqa esiqhekezayo. Sesona sicelo sokugqibela se-ADHD. Ukongeza, sibabini apho, ke iBoston Butter Donuts kunye neSmoothies zihlala zileqwa ngomdla ngomnye wethu, kodwa zingenasigqibo.
Kwi-brushless motor, ulahlekelwa ngumhambisi kunye neebrashi kwaye ufumane isilawuli se-elektroniki. Imagnethi esisigxina ngoku isebenza njenge-rotor kwaye ijikeleza ngaphakathi, ngelixa i-stator ngoku yenziwe ngekhoyili ye-electromagnetic yangaphandle. Umlawuli unika amandla kwikhoyili nganye ngokusekelwe kwintlawulo efunekayo ukutsala umazibuthe osisigxina.
Ukongeza kwiintlawulo zokuhambisa nge-elektroniki, umlawuli unokubonelela ngeentlawulo ezifanayo ukulwa nemagnethi esisigxina. Ekubeni iintlawulo zohlobo olufanayo zichasene enye kwenye, oku kutyhala umazibuthe osisigxina. Ngoku i-rotor ihamba ngenxa yokutsala kunye nokunyanzeliswa kwemikhosi.
Kule meko, iimagnethi ezisisigxina ziyashukuma, ke ngoku ziliqabane lam elibalekayo kunye nam. Asisatshintshi umbono wento esiyifunayo. Endaweni yoko, sasisazi ukuba ndifuna iBoston Butter Donuts, kwaye iqabane lam lalifuna i-smoothies.
Abalawuli be-elektroniki bavumela ulonwabo lwethu lwakusasa olwahlukeneyo ukuba luhambe phambi kwethu, kwaye besisoloko sisukela izinto ezifanayo ngalo lonke ixesha. Isilawuli sikwabeka izinto esingazifuni ngasemva ukubonelela ngotyhala.
Iinjini ze-DC ezixutyiweyo zilula kwaye zitshiphu ukwenza iinxalenye (nangona ubhedu khange bungabizixabiso liphantsi). Ekubeni i-brushless motor idinga umnxibelelanisi we-elektroniki, ngokwenene uqala ukwakha ikhompyutha kwisixhobo esingenazintambo. Esi sisizathu sokunyusa amaxabiso eemoto ezingenabrashi.
Ngenxa yezizathu zoyilo, iimotor ezingenasibhrashi zineengenelo ezininzi ngaphezulu kweenjini ezibrashwayo. Uninzi lwazo lunxulumene nokulahleka kweebrashi kunye nabahambi. Ekubeni i-brush kufuneka idibane nomhambisi ukuhambisa intlawulo, ibangela ukungqubuzana. Ukukhuhlana kunciphisa isantya esifikelelekayo kwaye kwangaxeshanye kuvelisa ubushushu. Kufana nokukhwela ibhayisekile eneziqhoboshi ezilula. Ukuba imilenze yakho isebenzisa amandla afanayo, isantya sakho siya kuthotha. Ngokwahlukileyo, ukuba ufuna ukugcina isantya, kufuneka ufumane amandla amaninzi emilenzeni yakho. Uya kufudumeza iirimu ngenxa yobushushu obuguquguqukayo. Oku kuthetha ukuba, xa kuthelekiswa neenjini ezibrashwayo, iimotho ezingenabrashi zibaleka kubushushu obuphantsi. Oku kubanika ukusebenza kakuhle okuphezulu, ngoko ke baguqula amandla ombane amaninzi abe ngamandla ombane.
Iibrashi zekhabhoni nazo ziya kuguga ngokuhamba kwexesha. Yiloo nto ebangela iintlantsi ngaphakathi kwezinye izixhobo. Ukuze ugcine isixhobo sisebenza, ibrashi kufuneka itshintshwe amaxesha ngamaxesha. Iinjini zebrushless azifuni olu hlobo lolondolozo.
Nangona ii-motor brushless zifuna abalawuli be-elektroniki, i-rotor / stator indibaniselwano idibene ngakumbi. Oku kukhokelela kumathuba obunzima obulula kunye nobukhulu obuncinci. Kungenxa yoko le nto sibona izixhobo ezininzi ezifana ne-Makita XDT16 impembelelo yomqhubi onoyilo lwe-ultra-compact kunye namandla anamandla.
Kubonakala ngathi kukho ukungaqondi malunga neenjini ze-brushless kunye ne-torque. Uyilo lwemoto olubrashwa okanye olungenabrashi ngokwayo alubonisi nyani ubukhulu betorque. Ngokomzekelo, i-torque yangempela ye-Milwaukee M18 ye-fuel drill ye-hammer drill yayincinci kunemodeli yangaphambili.
Nangona kunjalo, ekugqibeleni umenzi waqaphela izinto ezibaluleke kakhulu. Ii-electronics ezisetyenziswa kwii-motor brushless zinokunika amandla amaninzi kwezi motor xa kufuneka.
Kuba ii-brushless motors ngoku zisebenzisa ulawulo oluphezulu lwe-elektroniki, zinokuva xa ziqala ukwehla phantsi komthwalo. Logama nje ibhetri kunye neemoto ziphakathi koluhlu lwemilinganiselo yobushushu, i-brushless motor electronics inokucela kwaye ifumane ngakumbi ngoku kwipakethi yebhetri. Oku kuvumela izixhobo ezifana ne-brushless drills kunye neesarha ukugcina isantya esiphezulu phantsi komthwalo. Oku kubenza bakhawuleze. Idla ngokukhawuleza kakhulu. Eminye imizekelo yoku iquka iMilwaukee RedLink Plus, iMakita LXT Advantage kunye neDeWalt Perform and Protect.
Ezi teknoloji zidibanisa ngaphandle komthungo iinjini zesixhobo, iibhetri, kunye ne-electronics kwisistim edibeneyo ukufezekisa ukusebenza kakuhle kunye nexesha lokusebenza.
Ukutshintsha-tshintsha i-polarity yentlawulo-qalisa i-brushless motor kwaye uyigcine ijikeleza. Emva koko, kufuneka ulawule isantya kunye ne-torque. Isantya sinokulawulwa ngokuguqula i-voltage ye-BLDC motor stator. Ukumodareyitha i-voltage kwi-frequency ephezulu kukuvumela ukuba ulawule isantya semoto ukuya kwinqanaba elikhulu.
Ukuze ulawule i-torque, xa umthwalo we-torque we-motor ukhuphuka ngaphezu kwinqanaba elithile, unokunciphisa i-stator voltage. Kakade ke, oku kwazisa iimfuno eziphambili: esweni motor kunye luvo.
I-Hall-effect sensors ibonelela ngendlela engabizi kakhulu yokubona indawo ye-rotor. Bayakwazi ukubona isantya ngexesha kunye nokuphindaphinda kokutshintsha kwenzwa yexesha.
Inqaku loMhleli: Jonga yethu Yintoni inqaku lemoto engena-sensorless ukuze ufunde ukuba iteknoloji yeBLDC ephucukileyo itshintsha njani izixhobo zamandla.
Indibaniselwano yezi zibonelelo inesinye isiphumo-ubomi obude. Nangona iwaranti yeemoto ezixutywe kunye ne-brushless motors (kunye nezixhobo) ngaphakathi kwe-brand idla ngokufana, unokulindela ubomi obude kwiimodeli ezingenazintambo. Oku kunokuba yiminyaka emininzi ngaphaya kwexesha lewaranti.
Uyakhumbula xa bendisithi abalawuli be-elektroniki bakha iikhompyuter kwizixhobo zakho? Iinjini zebrushless zikwayindawo yokuphumelela izixhobo ezikrelekrele ukuchaphazela ishishini. Ngaphandle kokuthembela kweenjini ze-brushless kunxibelelwano lwe-elektroniki, itekhnoloji yeqhosha elinye leMilwaukee angeke isebenze.
Kwiwotshi, uKenny uphonononga nzulu imida yezixhobo ezahlukeneyo kwaye uthelekisa umahluko. Emva kokuba ephumile emsebenzini, ukholo nothando lwakhe ngosapho lwakhe yeyona nto iphambili kuye. Ngokuqhelekileyo uya kuba sekhitshini, ukhwele ibhayisekile (uyi-triathlon) okanye ukhuphe abantu ngosuku lokuloba eTampa Bay.
Kusekho ukunqongophala kwabasebenzi abanezakhono eUnited States xa iyonke. Abanye bayibiza ngokuba “ngumsantsa wezakhono.” Nangona ukufumana isidanga se-4 seyunivesithi kunokubonakala "kuwo wonke umsindo," iziphumo zophando zamva nje ezivela kwi-Bureau of Labor Statistics zibonisa ukuba amashishini anezakhono afana nabashicileli kunye nabasebenza ngombane baphinde babekwe [...]
Kwangoko ngo-2010, sabhala malunga neebhetri ezingcono zisebenzisa i-graphene nanotechnology. Le yintsebenziswano phakathi kweSebe lezaMandla kunye neMathiriyeli yeVorbeck. Izazinzulu zisebenzisa igraphene ukwenza ukuba iibhetri ze-lithium-ion zitshajwe ngemizuzu endaweni yeeyure. Bekukudala. Nangona igraphene ingekaphunyezwa, sibuyile neebhetri zelithium-ion zamva nje […]
Ukuxhoma umzobo onzima eludongeni olomileyo akunzima kakhulu. Nangona kunjalo, ufuna ukuqiniseka ukuba uyenza kakuhle. Ngaphandle koko, uya kuthenga isakhelo esitsha! Ukujija nje isikrufu eludongeni akusisiki. Kufuneka ukwazi ukuba ungathembeli njani [...]
Akuqhelekanga ukufuna ukubeka iingcingo zombane eziyi-120V ngaphantsi komhlaba. Unokufuna ukunika amandla ishedi yakho, indawo yokusebenzela okanye igaraji. Olunye usetyenziso oluxhaphakileyo kukunika amandla izithuba zezibane okanye iinjini zocango zombane. Kuyo nayiphi na imeko, kuya kufuneka uqonde iimfuno zocingo eziphantsi komhlaba ukuhlangabezana [...]
Enkosi ngengcaciso. Le yinto ebendiyibuza ixesha elide, ndibona ukuba uninzi lwabantu luthanda i-brushless (ubuncinci isetyenziswe njengengxoxo yezixhobo zamandla ezibiza kakhulu kunye needrones).
Ndifuna ukwazi: Ngaba umlawuli uyasiva isantya? Ngaba akunyanzelekanga ukuba yenziwe ungqamaniso? Ngaba inamalungu eHolo azivayo (ajikelezisa) iimagnethi?
Ayizizo zonke iimoto ezingenabrashi ezingcono kunazo zonke iimotor ezibrashiweyo. Ndifuna ukubona ukuba ubomi bebhetri yeGen 5X buthelekiseka njani na ngaphambili X4 phantsi kwemodareyitha ukuya kwimithwalo enzima. Kuyo nayiphi na imeko, iibhrashi phantse azinakuze zibe yinto ethintela ubomi. Isantya semoto sokuqala sezixhobo ezingenazintambo zimalunga nama-20,000 ukuya kuma-25,000. Kwaye ngeseti yegiya yeplanethi egcotyiweyo, ukuncipha malunga ne-12: 1 kwigiya ephezulu kwaye malunga ne-48: 1 kwigiya ephantsi. Indlela yokuqalisa kunye neebheringi ze-motor rotor ezixhasa i-25,000RPM i-rotor kumlambo wothuli womoya zidla ngokuba ziindawo ezibuthathaka.
Njengeqabane laseAmazon, sinokufumana ingeniso xa ucofa ikhonkco leAmazon. Enkosi ngokusinceda senze le nto sithanda ukuyenza.
Uphononongo lweSixhobo sePro lupapasho oluphumeleleyo lwe-intanethi olubonelele ngophononongo lwesixhobo kunye neendaba zeshishini ukusukela ngo-2008. Kwihlabathi lanamhlanje leendaba ze-Intanethi kunye nomxholo we-intanethi, sifumanisa ukuba iingcali ezininzi ziphanda kwi-intanethi uninzi lwezixhobo zamandla ezizithengayo. Oku kwavuselela umdla wethu.
Kukho into ephambili ekufuneka uyiqaphele malunga noPhononongo lweSixhobo sePro: Sonke simalunga nabasebenzisi bezixhobo zobuchwephesha kunye nosomashishini!
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Ixesha lokuposa: Aug-31-2021