Zvinoreva brushless DC mota

Iyo brushless DC mota ine imwechete yekushanda musimboti uye maitiro ekushandisa seyakajairwa DC mota, asi kuumbwa kwayo kwakasiyana.Pamusoro peiyo mota pachayo, iyo yekutanga zvakare ine yekuwedzera yekufambisa dunhu, uye iyo mota pachayo uye dunhu rekufambisa zvakabatanidzwa zvakanyanya.Iyo mota pachayo yeakawanda-yakaderera-simba mota inosanganiswa neiyo commutation circuit.Kubva pakuonekwa, iyo DC brushless mota yakangofanana neiyo DC mota.

Iyo mota pachayo yeiyo brushless DC mota ndiyo electromechanical simba rekushandura chikamu.Pamusoro pezvikamu zviviri zvemota armature uye yekusingaperi magineti excitation, iyo brushless DC mota ine zvakare masensa.Iyo mota pachayo ndiyo musimboti weiyo brushless DC mota.Iyo brushless DC mota haina hukama chete nemaitiro ekuita, ruzha uye kudedera, kuvimbika uye hupenyu hwebasa, asi inosanganisirawo mutengo wekugadzira uye mutengo wechigadzirwa.Nekuda kwekushandiswa kwekusingaperi magineti magineti, iyo brushless DC mota inogona kubvisa yechinyakare dhizaini uye chimiro cheiyo general DC mota, uye inosangana nezvinodiwa zveakasiyana misika yekushandisa.Kuvandudzwa kwechigarire magineti magineti kwakabatana nekushandiswa kwechigarire magineti zvinhu.Iko kushandiswa kweyechitatu-chizvarwa chisingaperi magineti zvinhu zvinosimudzira brushless DC motors kuti iende kune yakakwira kunyatsoshanda, miniaturization uye kuchengetedza simba.

Kuti uwane kutenderera kwemagetsi, iyo brushless DC mota inofanirwa kunge iine chinzvimbo chiratidzo chekudzora dunhu.Mumazuva ekutanga, iyo electromechanical chinzvimbo sensor yaishandiswa kuwana iyo chinzvimbo chiratidzo, uye ikozvino yemagetsi chinzvimbo sensor kana yayo DC brushless mota nzira inoshandiswa zvishoma nezvishoma kuwana iyo chinzvimbo chiratidzo.Nzira iri nyore ndeye kushandisa chiratidzo chinogoneka cheiyo armature winding sechiratidzo chenzvimbo.Iyo brushless DC mota inofanirwa kunge iine yekumhanyisa chiratidzo kuti ione kutonga kwemota kumhanya.Chiratidzo chekumhanya chinowanikwa nenzira yakafanana yekuwana chiratidzo chenzvimbo.Iyo yakareruka yekumhanyisa sensor isanganiswa ye frequency-yekuyera tachogenerator uye yemagetsi dunhu.Iyo yekutenderera yedunhu ye brushless DC mota ine zvikamu zviviri, chikamu chekutyaira uye chikamu chekutonga.Zvikamu zviviri hazvisi nyore kupatsanura.Kunyanya kune mashoma-simba maseketi, zvikamu zviviri izvi zvinowanzobatanidzwa mune imwechete application-specific integrated circuit.

Mune brushless DC mota, dhiraivha yedhiraivha uye dunhu rekutonga rinogona kubatanidzwa mune imwe yemamotor ane simba repamusoro.Iyo dhiraivha yedunhu inoburitsa simba remagetsi, inotyaira iyo armature mhepo yemota, uye inodzorwa nedunhu rekutonga.Parizvino, iyo DC brushless mota dhiraivha yedunhu yakashandurwa kubva kune mutsara amplification state kuenda kune pulse wide modulation switching state, uye inopindirana yedunhu kuumbwa yakashandurwa zvakare kubva kune transistor discrete wedunhu kuenda kune modular yakabatanidzwa wedunhu.Modular integrated circuits inoumbwa nemagetsi bipolar transistors, simba remunda mhedzisiro transistors uye yakasarudzika gedhi rekuita bipolar transistors.Kunyangwe iyo yekuzviparadzanisa gedhi remunda mhedzisiro bipolar transistor inodhura zvakanyanya, zvakanyanya kukodzera kusarudza DC brushless mota kubva pakuona kwekuvimbika, kuchengetedza uye kuita.