Ukwethulwa kwe-brushless DC motor kumathuluzi wamandla

Ngokuthuthukiswa kwebhethri elisha nobuchwepheshe bokulawula i-elekthronikhi, ukuklama kanye nezindleko zokukhiqiza ze-brushless DC motor zehliswe kakhulu, futhi amathuluzi alula ashajwayo adinga injini ye-brushless DC adumile futhi asetshenziswa kabanzi. Isetshenziswa kakhulu ezimbonini ezikhiqiza izimboni, zokuhlanganisa kanye nezokulungisa, ikakhulukazi ngokuthuthuka komnotho, isidingo sasekhaya siya ngokuya sikhuphuka, futhi izinga lokukhula lonyaka liphezulu kakhulu kunelezinye izimboni.

2, uhlobo lohlelo lokusebenza lwe-motor motor olukwazi ukushajwa kabusha

2.1 Injini ye-DC ebhulashiwe

Isakhiwo esivamile se-brushless DC sihlanganisa i-rotor (i-shaft, i-iron core, i-winding, i-commutator, i-bearing), i-stator (i-casing, i-magnet, i-end cap, njll.), ukuhlanganiswa kwe-carbon brush, ingalo ye-carbon brush nezinye izingxenye.

Umgomo wokusebenza: I-stator ye-brushed DC motor ifakwe ngesigxobo esimisiwe (umazibuthe) kanye nebhulashi, futhi i-rotor ifakwe ne-armature winding kanye ne-commutator. Amandla kagesi we-DC power supply angena endaweni ejikajikayo nge-carbon brush kanye ne-commutator, ekhiqiza i-armature current. Inkambu kazibuthe ekhiqizwe i-armature current isebenzisana nenkundla kazibuthe eyinhloko ukuze ikhiqize itorque kagesi, okwenza injini ijikeleze futhi ishayele umthwalo.

Ukungalungi: Ngenxa yobukhona be-carbon brush kanye ne-commutator, ukwethembeka kwe-brush motor akulungile, ukwehluleka, ukungazinzi kwamanje, ukuphila okufushane, kanye nenhlansi ye-commutator kuzoveza ukuphazamiseka kwe-electromagnetic.

2.2 Brushless DC motor

Isakhiwo esivamile se-brushless DC motor sihlanganisa i-motor rotor (i-shaft, i-iron core, uzibuthe, i-bearing), i-stator (i-casing, i-iron core, i-winding, inzwa, ikhava yokugcina, njll.) kanye nezingxenye zesilawuli.

Umgomo wokusebenza: I-Brushless DC motor iqukethe umzimba wemoto nomshayeli, iwumkhiqizo ojwayelekile we-mechatronics. Umgomo wokusebenza uyafana nalowo we-brush motor, kodwa i-commutator yendabuko kanye ne-carbon brush ithathelwa indawo inzwa yendawo kanye nolayini wokulawula, futhi isiqondiso samanje siguqulwa ngomyalo wokulawula okhishwe isignali yokuzwa ukuze uthole umsebenzi wokuhamba, ukuze ukuqinisekisa itorque kagesi engaguquki kanye nokuqondisa kwenjini nokwenza injini ijikeleze.

Ukuhlaziywa kwe-brushless DC motor kumathuluzi wamandla

3. Izinzuzo kanye nokubi kwe-BLDC motor application

3.1 Izinzuzo ze-BLDC motor:

3.1.1 Isakhiwo esilula nekhwalithi ethembekile:

Khansela i-commutator, ibhulashi le-carbon, ingalo yebhulashi nezinye izingxenye, akukho ukushiselwa kwe-commutator, inqubo yokuqeda.

3.1.2 Impilo ende yokusebenza:

Ukusetshenziswa kwezingxenye ze-elekthronikhi ukufaka esikhundleni sesakhiwo sendabuko se-commutator, ukuqeda injini ngenxa ye-carbon brush kanye ne-commutator commutator spark, ukugqokwa kwemishini kanye nezinye izinkinga ezibangelwa ukuphila okufushane, impilo yemoto yanda ngokuphindaphindiwe.

3.1.3 Ukuthula nokusebenza kahle okuphezulu:

Alikho ibhulashi lekhabhoni nesakhiwo se-commutator, gwema inhlansi ye-commutator kanye nokungqubuzana kwemishini phakathi kwe-carbon brush kanye ne-commutator, okuholela emsindweni, ukushisa, ukulahlekelwa kwamandla emoto, ukunciphisa ukusebenza kahle kwemoto. Ukusebenza kahle kwezimoto ze-Brushless DC ku-60 ~ 70%, nokusebenza kahle kwe-brushless DC motor kungafinyelela ku-75~90%

3.1.4 Amandla okulawula isivinini kanye namandla okulawula okubanzi:

Izingxenye ze-elekthronikhi ezinembile nezinzwa zingakwazi ukulawula ngokunembile isivinini sokuphumayo, i-torque nendawo yemoto, ziqaphela ukuthi zihlakaniphile futhi zinemisebenzi eminingi.