Sei maturusi emagetsi (akadai semadhiri emaoko, ma angle grinders, nezvimwewo) achiwanzo shandisa mota dzakabhurwa pachinzvimbo chebrushless motors? Kuti unzwisise, izvi hazvina kujeka mumutsara kana maviri.

DC mota dzakakamurwa kuita brushed mota uye brushless mota. “Bhurashi” rinotaurwa pano rinoreva mabhurasho ekabhoni.Ko carbon brush inoratidzika sei?

Nei mota dzeDC dzichida kabhoni mabhurashi?Ndeupi musiyano uripo pakati neasina kana kabhoni mabhurashi?Ngatitarisei pasi!

Nheyo ye brushed DC mota

Sezvinoratidzwa mumufananidzo 1, iyi idhizaini yemhando yedhizaini yeDC brush mota.Magineti maviri akagadzika ezvakapesana, coil inoiswa pakati, migumo yese yecoil yakabatana kune maviri semi-denderedzwa mhete dzemhangura, migumo yese yemhete yemhangura inobatana neyakagadziriswa kabhoni brashi, uye ipapo DC yakabatana. kumativi ose maviri e carbon brush. magetsi.

mufananidzo 1

Mushure mekubatanidza kune magetsi, ikozvino inoratidzwa nemuseve mumufananidzo 1.Maererano nemutemo wekuruboshwe, iyo yero coil inoiswa pasi pesimba repamusoro remagetsi remagetsi; coil yebhuruu inoiswa pasi pesimba remagetsi rinodzika pasi.Rotor yemota inotanga kutenderera newachi, uye mushure mekutenderera 90 madhigirii, sezvakaratidzwa mumufananidzo 2:

mufananidzo 2

Panguva ino, carbon brush inongova mukaha pakati pezvindori zviviri zvemhangura, uye iyo yose coil loop haina ikozvino.Asi pasi pechiito che inertia, rotor inoramba ichitenderera.

mufananidzo 3

Apo rotor inotendeukira kunzvimbo iri pamusoro pasi pechiito che inertia, iyo coil ikozvino inoratidzwa muMufananidzo 3. Maererano nemutemo wekuruboshwe, ruvara rwebhuruu runoiswa pasi pe vertical upward electromagnetic force; iyo yero coil inoiswa pasi pesimba remagetsi rinodzika pasi. Iyo mota rotor inoramba ichitenderera newachi, mushure mekutenderera 90 madhigirii, sezvakaratidzwa mumufananidzo 4:

Mufananidzo 4

Panguva ino, kabhoni brashi inongova mukaha pakati pezvindori zviviri zvemhangura, uye hapana ikozvino mune yese coil loop.Asi pasi pechiito che inertia, rotor inoramba ichitenderera.Zvadaro dzokorora matanho ari pamusoro, uye kutenderera kunoenderera mberi.

DC brushless mota

Sezvinoratidzwa muMufananidzo 5, iyi ndiyo dhizaini yemuenzaniso we abrushless DC mota. Inosanganisira stator uye rotor, umo rotor ine mapeji emagineti; kune akawanda seti emakoiri akakuvadzwa pane stator, uye pane 6 seti yemakoiri pamufananidzo.

Mufananidzo 5

Kana isu tichipfuura ikozvino kune stator coils 2 uye 5, iyo coils 2 uye 5 inoburitsa magineti. Stator yakaenzana nebar magnet, apo 2 ndiyo S (Maodzanyemba) pole uye 5 iN (North) pole. Sezvo magineti matanda ehurume humwechete achikwezva mumwe nemumwe, iyo N pole ye rotor inotenderera ichienda kunzvimbo yecoil 2, uye S pole yerotor inotenderera ichienda kunzvimbo yecoil 5, sezvakaratidzwa mumufananidzo 6.

Mufananidzo 6

Zvadaro tinobvisa ikozvino ye stator coils 2 uye 5, uye topfuura ikozvino kune stator coils 3 uye 6. Panguva ino, mapeji 3 uye 6 achagadzira magnetic field, uye stator yakaenzana nebar magnet. , apo 3 ari S (south) pole uye 6 ari N (kuchamhembe) pole. Sezvo matanda emagineti ehumwe murume anokwezva mumwe nemumwe, iyo N pole ye rotor inotenderera ichienda kunzvimbo yekoil 3, uye S pole ye rotor inotenderera ichienda kunzvimbo yecoil 6, sezvakaratidzwa mumufananidzo 7.

Mufananidzo 7

Nenzira imwecheteyo, ikozvino ye stator coils 3 uye 6 inobviswa, uye ikozvino inopfuudzwa kune stator coils 4 uye 1. Panguva ino, mapeji 4 uye 1 achagadzira magnetic field, uye stator yakaenzana. kune magineti yebhawa, uko 4 ari S (maodzanyemba) pole uye 1 ari N (kuchamhembe) pole. Sezvo magineti mapango emurume mumwe chete achikwezva mumwe nemumwe, iyo N pole ye rotor inotenderera ichienda kunzvimbo yecoil 4, uye iyo S pole yerotor inotenderera ichienda kunzvimbo yecoil 1.

Parizvino, mota yatenderera hafu yedenderedzwa…. Yechipiri hafu denderedzwa yakafanana neyakapfuura musimboti, saka ini handisi kuzodzokorora pano.Isu tinogona kungonzwisisa iyo brushless DC mota sekuredza karoti pamberi pembongoro, kuitira kuti dhongi rigare richienda kune karoti.

Saka tinogona sei kupfuudza ikozvino chaiyo kumakoiri akasiyana panguva dzakasiyana? Izvi zvinoda yazvino commutation circuit…isina kutsanangurwa apa.

Kuenzanisa zvakanakira nekuipira

DC brush mota: kukurumidza kutanga, kubhureki panguva yakakodzera, yakagadzikana yekumhanyisa mutemo, kudzora kuri nyore, chimiro chakareruka uye mutengo wakaderera.Chiripo ndechekuti zvakachipa!mutengo wakachipa!mutengo wakachipa!Uyezve, ine hombe yekutanga ikozvino, torque hombe (kutenderera simba) nekumhanya kwakaderera, uye inogona kutakura mutoro unorema.

Nekudaro, nekuda kwekupokana kuri pakati pekabhoni bhurasho uye chikamu chevafambi, iyo DC brashi mota inowanzoitika kune sparks, kupisa, ruzha, electromagnetic kupindira kune yekunze nharaunda, yakaderera kushanda uye hupenyu hupfupi.Nekuti kabhoni mabhurashi anodyiwa, anowanzo kutadza uye anoda kutsiviwa mushure menguva yenguva.

Brushless DC mota: Nekuti iyobrushless DC motainobvisa kudiwa kwemabhurashi ekabhoni, ine ruzha rwakaderera, haina gadziriso, mwero yakaderera yekutadza, hupenyu hurefu hwesevhisi, yakagadzikana yekumhanya nguva uye voltage, uye kushoma kukanganiswa nemidziyo yeredhiyo. Asi zvinodhura! Zvinodhura! Zvinodhura!

Power Tool Features

Maturusi emagetsi maturusi anonyanya kushandiswa muhupenyu. Kune mhando dzakawanda uye kukwikwidza kunotyisa. Munhu wese anonyanya kukoshesa mutengo.Uye maturusi emagetsi anoda kutakura mutoro unorema uye anofanirwa kunge aine torque hombe yekutangira, senge zvibooreso zvemaoko uye zvibooreso zvinokanganisa.Zvikasadaro, pakudhirowa, mota inogona kutadza kumhanya nekuti chibooreso chakanamira.

Chimbofungidzira, iyo brushed DC mota ine mutengo wakaderera, hombe yekutanga torque, uye inogona kutakura mitoro inorema; kunyangwe iyo brushless mota ine yakaderera kutadza mwero uye hupenyu hurefu, inodhura, uye yekutanga torque yakaderera zvakanyanya kune iyo yebhurashi mota.Dai wakapihwa sarudzo, waizosarudza sei, ndinofunga mhinduro inozviratidza.

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Nguva yekutumira: Oct-07-2022