Ulwazi lomgomo wokusebenza we-brush motor kanye ne-brushless motor

Isimiso sokusebenza kwe-brush motor

Isakhiwo esikhulu sei-brushless motori-stator + rotor + shayela, futhi i-torque itholakala ngokuzungeza insimu kazibuthe ukuze ikhiphe amandla e-kinetic.Ibhulashi lihlala lithintana ne-commutator ukuze liqhube ugesi futhi lishintshe isigaba sokujikeleza

I-brush motor ISEBENZISA ukushintsha komshini, isigxobo kazibuthe asinyakazi, ukuzungezisa ikhoyili.Lapho injini isebenza, ikhoyili nesihambisi siyazungeza, kuyilapho insimbi kazibuthe nebhulashi lekhabhoni zingashintshi. Ushintsho olushintshanayo lwendlela ikhoyili yamanje lufezwa isihambisi kanye nebhulashi elizungeza ngenjini.

Enjinini yebhulashi, le nqubo iwukuhlanganisa isiphetho samandla amabili ekhoyili, wona, ahlelwe abe yindandatho, ahlukaniswe ngezinto ezivikelayo phakathi komunye nomunye, enze noma yini efana nesilinda, abe yinto ephilayo ngokuphindaphindiwe ne-motor shaft. , ukunikezwa kwamandla ngezinsika ezimbili ezincane ezenziwe ngekhabhoni (ibhulashi lekhabhoni), ngaphansi kwesenzo sengcindezi yasentwasahlobo, ukusuka endaweni eqondile emibili, ingcindezi kokokufaka kwamandla, amaphuzu amabili ekhoyili eyindilinga ikhoyili yesethi kagesi.

Njengoba iimotoiyazungeza, amakhoyili ahlukene noma izigxobo ezihlukene zekhoyili efanayo zinikwa amandla ngezikhathi ezihlukene, ukuze kube nomehluko ofanelekile we-Engela phakathi kwe-ns pole yekhoyili ekhiqiza amandla kazibuthe kanye ne-ns pole ye-stator yamagnetic eseduze ehlala njalo. Izinkambu zikazibuthe ziyaheha futhi ziyaxoshana, zikhiqiza amandla futhi zisunduze injini ukuthi ijikelezise.I-carbon electrode islayida ekhanda locingo njengebhulashi ebusweni bento, yingakho igama elithi "ibhulashi".

Ukushelela ndawonye kuzodala ukungqubuzana nokulahlekelwa amabhulashi ekhabhoni, okudingeka ashintshwe njalo.Ukushintshana ukukhanyisa nokuvala phakathi kwebhulashi lekhabhoni kanye nekhanda locingo lwekhoyili kungabangela inhlansi kagesi, ukunqamuka kukazibuthe kagesi futhi kuphazamise izinto zikagesi.

Isimiso sokusebenza kwe-brushless motor

Emotweni engenabhulashi, ukuguqulwa kwenziwa yisekethe yokulawula kusilawuli (ngokuvamile inzwa yehholo + isilawuli, nobuchwepheshe obuthuthuke kakhulu yisishumeki kazibuthe).

I-Brushless motor ISEBENZISA umshini wokuhamba ngogesi, ikhoyili ayinyakazi, isigxobo kazibuthe siyazungeza.Imoto engenabhulashi ISEBENZISA isethi yezinto zikagesi ukuze izwe ukuma kwesigxobo kazibuthe sikazibuthe ongunaphakade ngokusebenzisa isici sehholo SS2712. Ngokwalo mqondo, isekethe ye-elekthronikhi isetshenziselwa ukushintsha isiqondiso samanje kukhoyili ngesikhathi esifanele ukuze kuqinisekiswe ukukhiqizwa kwamandla kazibuthe ngendlela efanele ukushayela injini.Ukuqeda ububi be-brush motor.

Lawa masekhethi abizwa ngokuthi ama-motor controllers.Isilawuli se-brushless motor singakwazi futhi ukubona imisebenzi ethile engakwazi ukwenziwa yi-brushless motor, njengokulungisa i-Angle yokushintsha amandla, i-braking motor, ukwenza injini ihlehle, ukukhiya injini, nokusebenzisa isignali yebhuleki yokumisa ukunikezwa kwamandla enjini.I-alamu ye-alamu yebhethri yemoto manje, ekusebenziseni ngokugcwele le misebenzi.

I-Brushless dc motor ingumkhiqizo ojwayelekile we-mechatronics, owakhiwa umzimba wemoto kanye nomshayeli.Njengoba i-brushless dc motor isebenza ngemodi yokulawula okuzenzakalelayo, ngeke yengeze ukuqala kokuphenduka ku-rotor njenge-synchronous motor ene-variable frequency regulation. futhi umthwalo osindayo uqala, futhi ngeke ubangele ukuzulazula futhi uphume lapho umthwalo ushintsha.

Umehluko wemodi yokulawula isivinini phakathi kwe-brush motor kanye ne-brushless motor

Eqinisweni, ukulawulwa kwezinhlobo ezimbili zenjini kuwukulawulwa kwamandla kagesi, kodwa ngenxa yokuthi i-brushless dc ISEBENZISA i-electronic commutator, ngakho-ke ingafinyelelwa ngokulawulwa kwedijithali, futhi i-brushless dc idlula i-carbon brush commutator, kusetshenziswa isekethe yendabuko ye-analog elawulwa yi-silicon ingalawulwa. , ilula uma kuqhathaniswa.

1. Inqubo yokulawula isivinini se-brush motor iwukuba ulungise i-voltage yokuphakelwa kwamandla enjini.Ngemva kokulungiswa, i-voltage kanye namanje kuguqulwa i-commutator kanye nebhulashi ukuze kuguqulwe amandla okusebenza kazibuthe akhiqizwa i-electrode ukuze kuzuzwe inhloso yokushintsha isivinini.Le nqubo yaziwa ngokuthi ukulawula ingcindezi.

2. Inqubo yokulawula isivinini se-brushless motor iwukuthi i-voltage yokunikezwa kwamandla emoto ihlala ingashintshiwe, isignali yokulawula yokulungiswa kukagesi iyashintshwa, futhi izinga lokushintshwa kweshubhu le-MOS lamandla aphezulu liguqulwa yi-microprocessor ukuze qaphela ukuguqulwa kwejubane.Le nqubo ibizwa ngokuthi ukuguqulwa kwefrikhwensi.

Umehluko wokusebenza

1. I-brush motor inesakhiwo esilula, isikhathi eside sokuthuthukiswa kanye nobuchwepheshe obuvuthiwe

Emuva ngekhulu le-19, lapho injini izalwa, injini esebenzayo yayiyifomu le-brushless, okungukuthi i-ac squirrel-cage asynchronous motor, eyayisetshenziswa kabanzi ngemva kokukhiqizwa kwamandla ashintshashintshayo. ukuthi ukuthuthukiswa kobuchwepheshe bezimoto kuhamba kancane.Ikakhulukazi, i-brushless dc motor ayikwazanga ukufakwa ekusebenzeni kwezentengiselwano. Ngokuthuthuka okusheshayo kobuchwepheshe be-elekthronikhi, ifakwe kancane kancane ekusebenzeni kwezentengiselwano kuze kube yiminyaka yamuva. Empeleni, iseyingxenye yesigaba se-ac motor.

I-Brushless motor yazalwa esikhathini esingeside esidlule, abantu basungula i-brushless dc motor.Ngenxa yokuthi i-dc brush motor mechanism ilula, ikhiqizwa kalula futhi icutshungulwa, kulula ukuyinakekela, kulula ukuyilawula; I-Dc motor nayo inokusabela okusheshayo, i-torque enkulu yokuqala, futhi inganikeza ukusebenza kwe-torque elinganiselwe ukusuka ku-zero kuya kusivinini esilinganiselwe, ngakho-ke isetshenziswe kabanzi uma iphuma.

2. I-brushless dc motor inesivinini sokuphendula esisheshayo kanye ne-torque enkulu yokuqala

I-Dc brushless motor inempendulo yokuqala esheshayo, i-torque enkulu yokuqala, ukuguqulwa kwesivinini esizinzile, cishe akukho ukudlidliza okuzwakalayo kusuka ku-zero kuya kusivinini esiphezulu, futhi ingashayela umthwalo omkhulu uma iqala. isici samandla sincane, i-torque yokuqala incane, umsindo wokuqala uyakhala, uhambisana nokudlidliza okuqinile, futhi umthwalo wokushayela mncane uma uqala.

3. I-brushless dc motor ihamba kahle futhi inomphumela omuhle wokubhuleka

I-brushless motor ilawulwa yi-voltage regulation, ngakho-ke ukuqala nokubhuleka kuzinzile, futhi ukusebenza kwejubane njalo kuzinzile.I-Brushless motor ivamise ukulawulwa ukuguqulwa kwamafrikhwensi edijithali, okushintsha kuqala i-ac kuya ku-dc, bese kuthi i-dc ibe yi-ac, futhi ilawula isivinini ngokushintsha imvamisa. Ngakho-ke, i-brushless motor ayisebenzi kahle lapho iqala futhi ibhuleka, ngokudlidliza okukhulu, futhi izozinza kuphela lapho ijubane lihlala njalo.

4, i-dc brush motor control ukunemba kuphezulu

I-Dc brushless motor ivame ukusetshenziswa kanye nebhokisi le-reducer kanye ne-decoder ukwenza amandla okukhiphayo emoto abe mkhulu futhi ukunemba kokulawula kuphakeme, ukunemba kokulawula kungafinyelela ku-0.01 mm, cishe kungavumela izingxenye ezihambayo ziyeke kunoma iyiphi indawo oyifunayo. Wonke umshini wokunemba amathuluzi kukhona i-dc motor control accuracy.Njengoba i-brushless motor ayizinzile ngesikhathi sokuqala nokubhuleka, izingxenye ezihambayo zizoma ezindaweni ezahlukene isikhathi ngasinye, futhi indawo oyifunayo ingamiswa kuphela ngokubeka. iphini noma umkhawulo wendawo.

I-5, izindleko zokusebenzisa i-dc brush motor ziphansi, zilungiswa kalula

Ngenxa yesakhiwo esilula se-brushless dc motor, izindleko eziphansi zokukhiqiza, abakhiqizi abaningi, ubuchwepheshe obuvuthiwe, ngakho-ke busetshenziswa kabanzi, njengezimboni, amathuluzi omshini wokucubungula, izinsimbi ezinembile, njll., uma ukwehluleka kwemoto, vele ungene esikhundleni se-carbon brush. , ibhulashi ngalinye lekhabhoni lidinga amadola ambalwa kuphela, ishibhile kakhulu.Ubuchwepheshe bezimoto obungenamabhulashi abuvuthiwe, intengo iphakeme, ububanzi bokufaka isicelo bulinganiselwe, ikakhulukazi kufanele kube emishinini yejubane engaguquki, njenge-frequency conversion air conditioning, isiqandisi, njll., umonakalo we-brushless motor ungashintshwa kuphela.

6, akukho bhulashi, ukuphazamiseka okuphansi

Izinjini ezingenabhulashi zisusa ibhulashi, uguquko oluqondile kakhulu ukungabikho kwenhlansi yebhulashi egijimayo, ngaleyo ndlela kunciphisa kakhulu ukuphazamiseka kwenhlansi kagesi emishinini yomsakazo ekude.

7. Umsindo ophansi nokusebenza kahle

Ngaphandle kwamabhulashi, i-brushless motor izoba nokungqubuzana okuncane kakhulu ngesikhathi sokusebenza, ukusebenza okushelelayo nomsindo ophansi kakhulu, okuwukusekelwa okuhle kokuzinza kokusebenza kwemodeli.

8. Impilo ende yesevisi kanye nezindleko zokunakekela eziphansi

I-brushless motor, i-brushless motor igqoke ikakhulukazi i-bearing, ngokombono wemishini, i-brushless motor cishe iyinjini engalungiswa, uma kunesidingo, yenza nje ukulungisa uthuli.

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