Tanthauzo la brushless DC motor

Galimoto yopanda brushless DC ili ndi mfundo yofananira yogwirira ntchito komanso mawonekedwe ogwiritsira ntchito monga mota ya DC, koma mawonekedwe ake ndi osiyana.Kuphatikiza pa injini yokhayo, yoyambayo ilinso ndi gawo lowonjezera losinthira, ndipo mota palokha ndi dera lozungulira zimaphatikizidwa kwambiri.Injini yokha ya ma motors ambiri otsika mphamvu imaphatikizidwa ndi dera loyendera.Kuchokera pamawonekedwe, mota ya DC brushless ndiyofanana ndendende ndi mota ya DC.

Galimoto yokha ya brushless DC motor ndiye gawo lotembenuza mphamvu ya electromechanical.Kuphatikiza pa magawo awiri a zida zamagalimoto ndi kusangalatsa kwa maginito okhazikika, mota ya brushless DC ilinso ndi masensa.Galimoto yokha ndiye pakatikati pa brushless DC mota.Galimoto ya brushless DC sikuti imangokhudzana ndi zizindikiro zogwirira ntchito, phokoso ndi kugwedezeka, kudalirika ndi moyo wautumiki, komanso imaphatikizapo ndalama zopangira ndi mtengo wa mankhwala.Chifukwa cha kugwiritsidwa ntchito kwa maginito okhazikika a maginito, ma brushless DC motor amatha kuchotsa mapangidwe amtundu wa DC motor, ndikukwaniritsa zofunikira pamisika yosiyanasiyana yogwiritsira ntchito.Kukula kwa maginito okhazikika a maginito kumagwirizana kwambiri ndi kugwiritsa ntchito zida zokhazikika za maginito.Kugwiritsa ntchito zida za maginito za m'badwo wachitatu kumalimbikitsa ma brushless DC motors kuti apite patsogolo kwambiri, miniaturization ndi kupulumutsa mphamvu.

Kuti mukwaniritse kusintha kwamagetsi, mota ya brushless DC iyenera kukhala ndi chizindikiro chowongolera dera.M'masiku oyambilira, sensa yama electromechanical positioning idagwiritsidwa ntchito kuti ipeze chizindikiro, ndipo tsopano sensor yamagetsi yamagetsi kapena njira yake ya DC brushless motor imagwiritsidwa ntchito pang'onopang'ono kuti ipeze chizindikiro.Njira yosavuta ndiyo kugwiritsa ntchito chizindikiro chomwe chingathe kukhala chozungulira ngati chizindikiro cha malo.Makina a brushless DC ayenera kukhala ndi siginecha yothamanga kuti azindikire kuwongolera kwa liwiro la mota.Chizindikiro chothamanga chimapezeka ndi njira yofanana yopezera chizindikiro cha malo.Sensa yosavuta yothamanga ndi kuphatikiza kwa tachogenerator yoyezera pafupipafupi ndi dera lamagetsi.Dera losinthira la brushless DC motor lili ndi magawo awiri, gawo loyendetsa ndi gawo lowongolera.Magawo awiriwa ndi ovuta kuwalekanitsa.Makamaka mabwalo amphamvu otsika, magawo awiriwa nthawi zambiri amaphatikizidwa mu gawo limodzi lokhalokha la ntchito.

Mu motor brushless DC, dera loyendetsa galimoto ndi kayendetsedwe ka kayendetsedwe kake kakhoza kuphatikizidwa mu imodzi mwa injini zomwe zili ndi mphamvu zambiri.Dera loyendetsa galimoto limatulutsa mphamvu yamagetsi, limayendetsa mafunde amoto, ndipo limayendetsedwa ndi dera lowongolera.Pakadali pano, dera la DC brushless motor drive lasinthidwa kuchoka pamtundu wokulirakulira kupita ku gawo losinthira ma pulse wide modulation, ndipo mawonekedwe oyenderana nawo adasinthidwanso kuchoka ku transistor discrete circuit kupita ku modular Integrated circuit.Mabwalo ophatikizika ophatikizidwa amapangidwa ndi ma transistors amphamvu a bipolar, ma transistors amphamvu akumunda, ndi ma transistors akutali achitetezo a bipolar transistors.Ngakhale kudzipatula pachipata kumunda bipolar transistor ndi okwera mtengo kwambiri, ndi koyenera kusankha DC brushless mota malinga ndi kudalirika, chitetezo ndi magwiridwe.