Uyini umehluko phakathi kwemoto ye-DC ehlanganisiwe ne-bracsureless DC?

Izincazelo eziyisisekelo zokuxubha futhiI-Diracsess DC motors

I-DC Motor Motor: Idizayini ye-electromechanical ye-classic

I-DC motor exubile inguhlobo lwendabuko lomshini we-DC osebenzisa amabhulashi emishini kanye nomdlalo wokushintsha wamanje kuma-rotor windings. I-rotor (i-armature) ithwala amakhoyili, ngenkathi i-stator inikeza amandla kazibuthe ahleliwe asebenzisa ama-magnets noma amasimu ensimu. Njengoba i-armature ijikeleza, amabhulashi e-carbon agcina ukuslayida ngokuxhumana ngogesi ngokushelela ne-commutator izingxenye, kubuyisela emuva kwamanje ezindaweni eziqondile ze-angular. Lokhu kukhiqiza i-torque eqhubekayo endaweni eyodwa. Ama-motor we-DC Motors asetshenziswa kabanzi ngenxa yezidingo zabo zokushayela ezilula - imvamisa nje umthombo wamandla we-DC noma isilawuli esiyisisekelo se-PWM.

I-Brushiress DC Motor: Ukwakhiwa Kwezohwebo Zokwelashwa Ngogesi

I-motorless DC (BLDC) motor idlulisela ama-windings ku-stator futhi isebenzisa ama-magnets ahlala njalo ku-rotor. Esikhundleni sokuhamba ngomshini, isilawuli se-elekthronikhi sishintsha kwamanje phakathi kwezitabane zezitabele ngokuya ngempendulo yesikhundla se-rotor (imvamisa zivela ezinzwa zehholo noma emuva - Lo mklamo ususa amabhulashi kanye nomdlalo ngokuphelele, ukunciphisa ukugqoka kanye nomsindo kagesi. Ama-motor we-Bldc avame ukuba amathathu - isigaba, yize eminye imiklamo isebenzisa izigaba eziningi zokuvuselelwa okuthuthukisiwe. Ukuhlanganiswa kwe-Power Electronics, Ukuzwela, nokulawula kunika amandla ukusebenza okuphezulu kanye nejubane eliqondile kanye neTorque Regulation efanelekele izinhlelo zezimboni zesimanje, izimoto, kanye nezicelo zabathengi.

Isakhiwo sangaphakathi kanye nokuqhathaniswa kwezinto ezibalulekile

I-Mechan Mechation vs ukuhanjiswa nge-elekthronikhi

Emotweni exubile, izakhi ezisemqoka ziyi-armature enama-windings ethusi, umhlangano ohlukanisiwe, amabhulashi ekhabhoni, kanye nohlelo lwamandla kazibuthe oluqinile. Umzila wethusi ohlukaniswe ngomshini ojikeleza nge-shaft, ngenkathi amabhulashi esesogwini - othintana nabo abalayisha ngokuphikisana nalo. Ngokuphambene, imoto ye-BLDC isebenzisa i-rotor enama-magnets ahlala njalo kanye nesitaki esine-windings eningi ehlanganisiwe noma esabalalisa. Ukuhamba kusingathwa ngokushintshwa kwe-semiconductor, imvamisa ama-modets noma ama-igbts, alawulwa yi-microcontroller noma umshayeli ozinikele i-IC. Le shift ingena esikhundleni sezingxenye zemishini eqinile nge-solid - mbunguna.

Ukukhethwa kwezinto ezibonakalayo kanye nezindlela ezishisayo

Ama-motors ahlanganisiwe ajwayele ukubeka i-post windings kuma-rotor, ajikeleza ngaphakathi kwenkambu ye-stator. Lokhu kucushwa kunciphisa ukukhishwa okushisa ngoba izingxenye ezijikelezayo zinokuhlangana okushisayo okushisayo kuya ezindlini. Brushless motors move the windings to the stator, which is directly connected to the motor housing, enabling more efficient heat dissipation. Izimpawu ezijwayelekile ze-rotor emiklamo ye-BLC zisebenzisa izinto ze-NDFEB noma ze-Ferrite; NdFeB magnets can provide energy products above 35 MGOe, allowing higher torque density. Le mininingwane yesakhiwo ithinta ngqo usayizi wezimoto, isilinganiso esiqhubekayo samanje, kanye nokushisa okuphezulu, imvamisa i-80-120 ° C ngokujwayelekile - amayunithi wenhloso futhi aze afike ku-150 ° C emiklamo ye-premium.

Imigomo Yokusebenza Nezindlela Zokuhamba

Ukugeleza kwamanje nokukhiqizwa kwe-torque kuma-motor ahlanganisiwe

Ku-motor motor exutshwe, ukusebenzisa i-DC Voltage kudala ukuthi kugeleze amabhulashi ku-comlootator kanye ne-armature windings. Ukuxhumana phakathi kwe-armature yamanje ne-stator magvetic kwakha i-torque ngokuya nge-equation t = kt kt · i, lapho i-kt ingu-torque njalo futhi i-armature yamanje. Njengoba i-rotor iphenduka, okokufundisa ngezikhathi ezithile kubuyela emuva kwamanje kumakhoyili we-armature, ukugcina i-torque endaweni efanele. Okujwayelekile akukho - Isivinini somthwalo singalinganiswa ngu-ω ≈ (v - i0 (v - i0 (v - i0 (ke) · R) / ke, lapho i-v isetshenziswa khona, futhi i-CASHTS, i-EMF ingenamhlane -

Ukuhamba nge-elekthronikhi ngama-DC Motors

In BLDC motors, the stator windings are energized in a sequence synchronized with rotor position. I-Three - Isigaba BLDC motor ngokuvamile silandela isithupha silandela ukulandelana kwesithupha - Isinyathelo Sokuhambisa Isinyathelo, sinikeze amandla izigaba ezimbili ngesikhathi sesithathu selivaliwe. Isilawuli sisebenzisa ihholo - I-Effect Sensors noma i-Sensorless emuva - I-EMF Isikhathi ukunquma ukuthi uzoshintsha nini izigaba, uqinisekise ukuthi insimu ye-stator ihlala icishe ibe yi-orthogonal kumandla kazibuthe we-rotor, ekhulisa i-torque. Inkambu - Ukulawulwa okuqondiswe (FOM) kungahlanganisa ukuvumelanisa izakhi zamanje ze-vector ukulawula i-torque ne-flux ngokuzimela, ukuthuthukisa ukusebenza nokusebenza okunamandla. This electronic commutation allows adjustable speed ranges from near zero to tens of thousands of RPM with precise regulation.

Ukusebenza kahle, ukusebenza, kanye nokwehluka kokuqina kwamandla

Ukuqhathanisa okusebenzayo

Ngoba ama-motors axubha ahlushwa ukuxubha, ukulahleka komhambi, kanye nokusetshenziswa kwamandla kazibuthe okungaphansi komhlaba, ukusebenza kwawo okuphezulu, kusebenza ngokujwayelekile kusuka kuma-70% kuya ku-85% ama-85% amancane kuya kumasayizi aphakathi nendawo. Ngokuphambene nalokho, ama-motor we-Bldc ajwayele ukufezekisa ama-85% afinyelela kuma-92% asebenza kahle, futhi ukuphakama - imiklamo yokusebenza ingadlula ama-95% ngaphansi kwamaphoyinti wokusebenza kahle. Isibonelo, i-motor engu-200 ye-motor ehlanganisiwe ingaguqula kuphela i-150-160 esebenzisa amandla emishini endaweni yayo yokusebenza esebenza kahle, ngenkathi umehluko we-BLDC yesilinganiso esifanayo ungaletha u-170-185 W. Out of Energy Fight, ikakhulukazi kusebenza -

I-torque density namandla - ukukala isisindo

Ama-motors we-Bldc afinyelela ngokuvamile ukugcwala okuphezulu kwe-torque kunama-motor ahlanganisiwe ngoba ama-magnets angapheli ku-rotor angaqinisa amandla amakhulu kazibuthe ngaphandle kokulahleka kwethusi insimu. Amanani ajwayelekile aqhubekayo aqhubekayo ama-compact Bldc motors asebangeni le-0.3-0.7 NM / kg, ngenkathi ama-motors ahlanganisiwe ajwayele ukuwa phakathi kuka-0.2-0.4 NM / kg. Ngokufanayo, amandla - ukuhambisa isisindo Favors BLDC Imiklamo: I-1 kg Bldc motor ingahambisa u-300-500 W ngokuqhubekayo, kanti moto motor efanayo ehlanganisiwe ingahle ikhawulelwe ku-150-300 ngenxa yezinkinga ezishisayo. Lolu umehluko wezinombolo ushayela okuthandwa kakhulu izixazululo ezingenamkhawulo kuma-drones, e - amabhayisikili, amarobhothi nezinye isisindo - amasistimu abucayi.

Ukulawulwa kwejubane, ukulawulwa kwe-torque, kanye nokuphendula

Lawula ukulula kwama-motor ahlanganisiwe

Ukulawulwa kwejubane kwama-motor ahlanganisiwe kuqondile: Ukushintshanisa i-voltage esetshenzisiwe noma umjikelezo we-pustic wesiginali ye-PWM ngokuqondile. Okuphansi - Abaphathi bezindleko bangalawula isivinini ngokubekezelelana kwe- ± 5-10% ngaphandle kwempendulo. I-Torque ilingana nokukhawulelwa kwamanje, ngakho-ke ukukhawulelwa kwamanje noma okuvaliwe - Ukulawulwa kweLoop kungaphatha izimo ezilayishiwe. Kodwa-ke, lapho impendulo esheshayo enamandla noma ukuma okuqondile (isb., ± 0.1 °) kuyadingeka, umgibeli wemishini uba yinto ekhawulelwe. Ngaphezu kwalokho, ngesivinini esikhulu ngenhla cishe ngo-10,000-15,000 RPM, ukuxubha ukuxubha kanye nokugqokwa komdlalo kukhuphuke kakhulu, kuphoqa ukusebenza okuqhubekayo.

Amandla wokulawula athuthukile wama-motor angenamkhawulo

I-BLDC Motors incike ekuphathweni kwe-elekthronikhi, okuvula amathuba athuthukile. Kuvaliwe - Ukulawulwa kwe-Loop Vector kungagcina ukunemba kwesivinini ngaphakathi ± 1% noma kungcono emithanjeni ehlukahlukene, ngezikhathi zokuphendula ku-millisecond range. Ukulawulwa kweTorque kulungile ngokulinganayo - GREDED: Izilonda zamanje ezinama-bandwidth ezingenhla kwe-1 KHZ zinika amandla ukuvota kwe-torque ripple nokusebenza okusheshayo. Ama-servo amaningi we-serso wezimboni asebenzisa i-BLDC noma i-mentin menet synchronous motors (PMSM) efinyelela ama-realvecties aphezulu angcono kune- ± 0.01 ° nge-High - Lezi zici zenza amasistimu angenamabhulashi alungele kakhulu imishini ye-CNC, amarobhothi, amadivaysi ezokwelapha, nanoma yimiphi imishini efuna amaphrofayili ahambisanayo aqondile.

Umsindo, ukudlidliza, nokusebenza kokuqhathanisa okubushelelezi

Umsindo we-acoustic nogesi kuma-motor ahlanganisiwe

Ukuxubha Ukuxhumana kukhiqiza umsindo we-mehendi kanye nokuqhuma kukagesi. Amazinga omsindo we-acoustic ama-motor amancane ajwayelekile angafinyelela ku-50-70 db kude kakhulu ngaphansi komthwalo. Ukuqhuma ngebhulashi - I-Commutator interface ibuye ifaka phakathi amandla e-electromagnetic (i-EMI) emibuthanweni eseduze, kwesinye isikhathi idinga ukuhlunga okwengeziwe noma ukuvikela. I-Torque Ripple ithonywa yi-geometry yengxenye ye-commutator nenombolo yezigxobo; Amanani aphezulu ePole anganciphisa i-Rigple kepha angeze ubunzima. Kuzinhlelo zokusebenza ezinjengemishini yasehhovisi noma izinto zokwenza umsebenzi, le phrofayili yomsindo ingahle yamukeleke, kepha yamukelekile izinhlelo eziphezulu - Ukuphela kwemisindo yelabhorethri, kuba ukubuyela emuva okubalulekile.

Ukusebenza okuvuthayo nokuthule nge-motorless motors

I-BLDC motors isebenza ngaphandle kokuslayida oxhumana nabo kagesi, okunciphisa kakhulu umsindo ongokwenziwe ngomshini. Ngomklamo ofanele, ama-motors e-BLC angasebenza ebangeni le-30-50 DB ngaphansi kwezimo ezifanayo zomthwalo, futhi ukuphuma kwawo kwe-EMI kubikezelwa kakhulu futhi kulula ukuhlunga ngoba kuvela imicimbi eguquliwe yokushintsha. Ukusetshenziswa kwe-sinusoidal 3 noma i-FOM kunganciphisa i-torque ride to ngaphansi kwamaphesenti ambalwa we-torque ekalwe, ukuhlinzeka ngokujikeleza okubushelelezi ngisho nangejubane eliphansi. Lokhu kwenza ukuthi ama-motors angenamabhula afaneleke kakhulu ama-gimbals ekhamera, amaphampu wezokwelapha, abalandeli be-tecision, kanye nama-servo axes lapho ubushelelezi kanye nomsindo ophansi ophansi kubalulekile.

Ukuqina, ukulungiswa, kanye nempilo yenkonzo ephelele

Izindlela zokugqoka nezikhathi zensiza zama-motor ahlanganisiwe

Izinto zokugqoka eziyinhloko emotweni ye-DC ehlanganisiwe yi-Carbon kanye ne-commuta Pover. Ngaphansi kwezimo ezijwayelekile, amabhulashi angahlala amahora angama-2000-5,000 okusebenza kuma-motor amancane namahora ayi-10,000-20,000 emgqeni omkhulu, kahle - amayunithi aklanyelwe. Ijubane eliphakeme, imithwalo esindayo, noma ukuqala njalo - imijikelezo yokumisa ingafushanisa lokhu kakhulu. Isondlo ngokuvamile sifaka ukuhlolwa kwezikhathi ezithile, ukuxubha okunye, futhi kwesinye isikhathi ukuthumela kabusha i-commutator. Uma le misebenzi inganakwa, ukumelana okwengeziwe kanye nokuqhuma kungaholela ekutheni usebenzise ngokweqile, kuncishiswe i-torque, kanye nokwehluleka ekugcineni. Ngezicelo ezidinga ukusebenza okuqhubekayo kwe-24/7 ngaphandle kokuphazamiseka, lezi zidingo zokulungiswa kufanele zisetshenziswe ngokucophelela.

Ende - ukusebenza kwempilo ama-motors angenamkhawulo

Ngemiklamo engenabuntu, ukungabikho komshini wemishini kuqeda umthombo omkhulu wokugqoka. Impilo eyinhloko - Izakhi ezikhawulelwe ziba ama-bearings futhi, ngezinga elincane, izinhlelo zokufakelwa kanye nezinto ze-elekthronikhi. Amabhere ebhola lesimanje avame ukuba nezilinganiso zempilo eziyi-20,000-40,000 emahoreni angu-30 emithanjeni kanye nesivinini; Ngokuthambisa okufanele, ama-motor we-BLD afinyelela njalo insizakalo ahlala ngaphezulu kwamahora angama-30,000 futhi angadlula amahora angama-50 000 ezimeni ezenziwe kahle. Ngoba akukho okufakwa esikhundleni sokuxubha okudingekayo, isikhathi sokugcina nezindleko kuncishiswe kakhulu. Le nzuzo yokwethenjwa iyisizathu esibalulekile esenza abakhiqizi abaningi nabahlinzeki bacacisa izixazululo ze-BLDC zengqalasizinda ebucayi kanye nezezimboni ezenzakalelayo.

Izindleko, izidingo ze-elekthronikhi, kanye nobunzima bohlelo

I-Enist ibiza izinzuzo zama-motor ahlanganisiwe

Ukusuka endaweni ye-hardware emsulwa, ama-motor ahlanganisiwe alula ukukhiqiza. Le moto ingasebenza ngokuqondile kusuka ekunikezelweni kwe-DC noma isilawuli esiyisisekelo kakhulu, okwenza kukhange ngotshani phansi - Isibonelo, iyunithi elihlanganisiwe elinamandla alinganiselwe le-100 w lingabiza ama-20-50% ngaphansi kwezinga lengxenye kune-BLDC motor eqhathaniswa. Ngokukhiqizwa okuncane kugijima noma kubiza kakhulu - amadivaysi abucayi, lo mehluko anganquma. Kodwa-ke, isikhathi eside - Ithemu Yonke Imali Yobunikazi kufanele iphendule ngokusebenza kahle, ukunakekelwa kanye nokuphumula, okuvame ukuqeda ukonga kokuqala ngomjikelezo wokuphila kwemishini.

Izindleko zokulawula kanye nokuhlanganiswa kwama-motor angenamkhawulo

Imoto ye-BLDC idinga isilawuli se-elektroniki, engeza ubunzima. Isilawuli sifaka ama-semiconductors ama-Power, ukulawula okunengqondo, ukuzwela kwamanje, kanye nezindawo zokuxhumana ezifana nezinganazo, ama-Rs - 485, noma i-ethernet ye-ethernet. Ngakho-ke izindleko zohlelo lokuqala zingaphezulu ngo-30-100% uma ziqhathaniswa nesixazululo esilula esinefuza. Kodwa-ke, amamojula ahlanganisiwe we-drive kanye namamojula aphezulu okukhiqiza amavolumu eziteshini eziphelele anciphisa ngokuqinile leligebe. Lapho ukonga amandla, ukuncishiswa kwesondlo, futhi ukusebenza okuthuthukile kubalwa, impilo - Izindleko zomjikelezo wezinhlelo ze-BLDC zihlala ziphansi, ikakhulukazi ezindaweni ezihamba ngezimboni nakwezentengiso lapho kudlula amahora angama-2 000 000.

Izinkambu zesicelo ezijwayelekile zohlobo lwemoto ngayinye

Amacala ajwayelekile asebenzisa ama-DC Motors

I-DC Motors e-DC ihlala ithandwa lapho izindleko eziphansi, ama-elekthronikhi alula, kanye nezidingo zokusebenza okulinganiselwe ziyinhloko. Izindawo ezijwayelekile zifaka izinto ezincane zasendlini, eziphansi - Amathuluzi Amandla okuqeda, actursutors ezithunzini, amathoyizi, kanye nokushayela okuyisisekelo kokuhambisa. Eminingi yalaba basebenzise amacala, imijikelezo ye-Duty iyisikhathi esithile, futhi amahora aphelele okusebenza alinganiselwe, anciphise umthelela wokugqoka ibhulashi. Kumaphrojekthi wangokwezifiso, umenzi noma umphakeli angabuye akhethe ama-motor ahlanganisiwe wokuphakanyiswa okusheshayo, ngoba ukulawula kwawo kudinga kuphela ama-elekhronikhi we-Power Firmware kanye nentuthuko encane ye-firmware.

Izicelo ezithandwayo ze-DC Motors

I-BLDC Motors ibusa kuzinhlelo zokusebenza ezifuna usayizi weCompact, ukusebenza kahle kakhulu, kanye nokulawulwa okuqondile. Izibonelo zifaka izimoto zikagesi, ama-Drones kanye ne-UAV, imishini ye-CNC, amasistimu we-servo, umoya - Ukufaka amaphampu, ukupholisa kuseva, kanye nokuphakama kwamaphampu kanye nabacindezeli. Kule mikhakha, izindleko zamandla, ukuthembeka, kanye nokuphendula okunamandla okuphathelene kakhulu nokwanda kwentengo yengxenye. Ama-OEMS amaningi asebenza ngokubambisana nomenzi wezithuthuthu anikela ngezixazululo ezijwayelekile nezihlelekile ze-Bldc zokwandisa ubuningi bamandla, ama-acoustics, nezici zokulawula. Ku-Wholesale neProjekthi - Ibhizinisi elisuselwa, ukuqina kokusebenza kanye nokwehliswa kwehluleka insimu kuvame ukucacisa ukuguqulwa kobuchwepheshe obungenabuchwepheshe.

Imihlahlandlela yokukhetha phakathi kokuxubha futhi i-bracsureless

Izindlela zobuchwepheshe ezibalulekile namabhentshi anobungako

Ukukhetha phakathi kwemiklamo ehlanganisiwe ne-bracsureless kudinga ukuhlolwa kwezindlela eziningi zokulinganiswa:

• Umjikelezo Womsebenzi Nempilo: Ukuqhubeka komsebenzi oqhubekayo ngaphezulu kwamahora angama-4,000 ngonyaka, i-BLDC imvamisa inikela ngezindleko eziphansi eziphelele ngenxa yempilo ende yenkonzo (30,000 + Ukuqhathanisa ama-5,000-15,000 ngezixazululo eziningi ezihlanganisiwe).
• Ukuhlobisa okusebenzayo
• Izidingo zejubane neTorque: Ngejubane elingaphezulu kwe-15,000 RPM noma Ukulawulwa kwe-torque okuqondile nge-bandwidths kububanzi be-kilohertz, i-BLDC ikhetheke kakhulu.
• Imikhawulo yomsindo we-acoustic: Kuthola amasistimu adinga <50 dB ebanga elingumuntu angu-autinal, izixazululo ezingenamsebenzi kulula ukuzifanelekela.
• Izingqinamba zesabelomali: Ngaphansi kakhulu - Izindleko, eziphansi - Izicelo Zokusebenza, imoto ehlanganisiwe ehlanganiswe nokulawula okulula kwe-PWM kusengaba ukukhetha okuhle kakhulu.

Ukucatshangelwa Kwezentengiso: Izindima eziphelele, zomkhiqizi kanye nezembatho

Ngaphandle kokuhlaziywa kobunjiniyela, isu lokuthengwa kwempahla linomthelela ekukhetheni. Lapho sisongela kumenzi onikeza imikhiqizo yokuxubha futhi engenamkhawulo, kubalulekile ukuqhathanisa hhayi amanani entengo kuphela kepha nezindleko zabalawuli, izintambo kanye nokuhlanganiswa. Ngokuthengiselana okuthe xaxa, ama-BLDc motors angajabulela ivolumu - Ukuncishiswa kwentengo esekwe kokunciphisa igebe elinciphisa igebe ngezixazululo ezihlanganisiwe. Umphakeli onekhono lobuchwepheshe angasiza ukufana kwamandla kagesi alinganiselwe, i-torque ekalwe, ibanga lesivinini, kanye nemikhawulo eshisayo kwiphrofayili yomsebenzi wangempela wemishini yakho. Ngokuvumelanisa imininingwane yokusebenza ngokusebenza okunengqondo okusebenzayo, izinhlangano zingavikela ukweqisa, zinciphise ukunqunywa kwezinhlobonhlobo, futhi kufinyelelwe izindleko ezinhle kakhulu zobunikazi.

UMaxtech uhlinzeka ngezisombululo

UMaxtech ugxile kwizixazululo zeMotion ezihambelana nezakha ukusebenza kahle, ukuthembeka, nezindleko. Okwezinhlelo zokusebenza ezihlanganisiwe, iMaxtech isekela ukugcoba okunembile kususelwa ku-torque yomthwalo, umjikelezo wokusebenza, bese uqala okwamanje, ukuhlanganisa ama-rosest roseist ngemibuthano efanelekile. Ngezinhlelo ezingenamkhawulo, iMaxtech ihlinzeka ngamaphakheji ahlanganisiwe aqukethe izimoto ngokusebenza nge-90%, umsindo ophansi we-acoustic, kanye nemigomo yempilo yenkonzo ngaphandle kwamahora angama-30,000. Ukuxhaswa kobunjiniyela kuhlanganisa ukubalwa kwepharamitha, ukuqinisekiswa okushisayo, kanye nokucatshangelwa kwe-EMC, ukusiza amakhasimende ukuguqulwa kusuka ku-brushid to browless. Noma ngabe usebenza ngesiteshi esithengisa ngokuphelele noma ukubambisana okuqondile kwe-OEM, iMaxtech isiza ukusebenza ngokulingana, isabelomali, kanye nokugcina isikhathi eside - ukugcinwa kwethemu.