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ʻokoʻa hana kaʻa kaʻa 2: ola/wela/vibration

ʻO nā mea a mākou e kūkākūkā ai ma kēia mokuna:
ʻO ka pololei o ka wikiwiki / ka maʻalahi / ke ola a me ka mālama ʻana / ka hana ʻana i ka lepo / ka maikaʻi / ka wela / ka haʻalulu a me ka walaʻau / ka hoʻopau ʻana i nā mea e hoʻohana ai i ke kaiapuni

1. Gyrostability a me ka pololei
Ke hoʻokele ʻia ka kaʻa me ka wikiwiki paʻa, e mālama ʻo ia i ka wikiwiki like ʻole e like me ka inertia i ka wikiwiki kiʻekiʻe, akā e ʻokoʻa ia e like me ke ʻano kumu o ke kaʻa i ka wikiwiki haʻahaʻa.

No nā motika brushless slotted, ʻo ka huki ʻana ma waena o nā niho slotted a me ka magnet rotor e puʻupuʻu i nā haʻahaʻa haʻahaʻa.Eia nō naʻe, ma ke ʻano o kā mākou kaʻa kaʻa ʻole brushless slotless, ʻoiai ʻo ka mamao ma waena o ka stator core a me ka magnet e mau ana i ka pōʻai (ʻo ia hoʻi, he mau ka magnetoresistance i ka pōʻai), ʻaʻole hiki ke hana i nā ripples a me nā haʻahaʻa haʻahaʻa.Ka māmā holo.

2. ʻO ke ola, ka mālama a me ka hana lepo
ʻO nā kumu koʻikoʻi i ka hoʻohālikelike ʻana i nā kaʻa brushed a me ka brushless ʻo ke ola, mālama ʻia a me ka hana lepo.Ma muli o ka pili ʻana o ka pulupulu a me ka commutator kekahi i kekahi i ka wā e kaʻa ai ka mīkini palaki, e mae ʻole ka ʻāpana pili ma muli o ka friction.

ʻO ka hopena, pono e hoʻololi ʻia ke kaʻa holoʻokoʻa, a lilo ka lepo ma muli o ke ʻano o ka ʻōpala i pilikia.E like me ka manaʻo o ka inoa, ʻaʻohe brushless motors brushless, no laila ʻoi aku ka maikaʻi o ke ola, mālama ʻia, a hoʻohua i ka lepo ma mua o nā kaʻa brushed.

3. ʻO ka haʻalulu a me ka walaʻau
Hoʻopuka nā motika palaki i ka haʻalulu a me ka walaʻau ma muli o ka hakakā ma waena o ka pulupulu a me ka commutator, ʻoiai ʻaʻole nā ​​motor brushless.Hoʻopuka nā motika brushless slotted i ka haʻalulu a me ka walaʻau ma muli o ka torque slot, akā ʻaʻole nā ​​motika slotted a me nā motika kīʻaha kīʻaha.

ʻO ka mokuʻāina kahi i hoʻokaʻawale ʻia ai ke koʻi o ka rotation mai ke kikowaena o ka umekaumaha, ua kapa ʻia ʻo unbalance.Ke hoʻololi ʻia ka rotor i kaulike ʻole, hana ʻia ka haʻalulu a me ka walaʻau, a hoʻonui lākou me ka piʻi ʻana o ka wikiwiki.

4. Efficiency a me ka hana wela
ʻO ka ratio o ka ikehu mechanical output i ka ikehu uila hoʻokomo i ka pono o ka moto.ʻO ka hapa nui o nā poho i lilo ʻole i ka ikehu mechanical e lilo i ikehu wela, kahi e wela ai ke kaʻa.Loaʻa nā poho kaʻa:

(1).Nalo keleawe (nalo ka mana ma muli o ka pale ʻana i ka wili)
(2).Nalo hao (nālo hysteresis kumu stator, poho eddy i kēia manawa)
(3) Mechanical poho (nalo ma muli o ke kū'ē kū'ē o nā bearings a me nā pulupulu, a me ka poho ma muli o ke kū'ē ʻana o ka ea: nalo ʻana o ka makani)

BLDC brushless motor

Hiki ke hōʻemi ʻia ke poho keleawe ma ka mānoanoa ʻana i ka uea enamelled e hōʻemi i ke kūpaʻa wili.Eia nō naʻe, inā ʻoi aku ka mānoanoa o ka uea enamelled, e paʻakikī ke hoʻokomo ʻana i nā wili i loko o ke kaʻa.No laila, pono e hoʻolālā i ka ʻōnaehana wili e kūpono i ka kaʻa ma o ka hoʻonui ʻana i ke kumu o ke kaʻina hana (ka ratio o ka conductor i ka ʻāpana cross-sectional o ka wili).

Inā ʻoi aku ke kiʻekiʻe o ke alapine o ka pā magnetic rotating, e piʻi aʻe ka poho hao, ʻo ia hoʻi, ʻo ka mīkini uila me ka wikiwiki o ka hoʻololi ʻana e hoʻohua nui i ka wela ma muli o ka poho hao.Ma nā poho hao, hiki ke hoʻemi ʻia nā poho o kēia manawa ma ka hoʻoemi ʻana i ka pā kila laminated.

E pili ana i nā poho mechanical, loaʻa mau nā poho mechanical ma muli o ke kūpaʻa ʻana o ka friction ma waena o ka pulupulu a me ka commutator, ʻoiai ʻaʻole nā ​​motor brushless.Ma ke ʻano o nā bearings, ʻoi aku ka haʻahaʻa o ka friction coefficient o nā bearings ma mua o nā bearings maʻamau, kahi e hoʻomaikaʻi ai i ka pono o ka kaʻa.Hoʻohana kā mākou mau kaʻa i nā bearings.

ʻO ka pilikia me ka hoʻomehana ʻana ʻoiai inā ʻaʻohe palena o ka noi i ka wela ponoʻī, ʻo ka wela i hana ʻia e ke kaʻa e hoʻemi i kāna hana.

Ke wela ka wili, piʻi ke kū'ē (impedance) a paʻakikī ke kahe ʻana o ke au, e hopena i ka emi ʻana o ka torque.Eia kekahi, i ka wā e wela ai ke kaʻa, e hoʻemi ʻia ka ikaika magnetic o ka magnet e ka thermal demagnetization.No laila, ʻaʻole hiki ke mālama ʻia ka hana o ka wela.

Ma muli o ka loaʻa ʻana o ka demagnetization thermal ka liʻiliʻi o ka samarium-cobalt ma mua o nā neodymium magnet ma muli o ka wela, ua koho ʻia nā magnet samarium-cobalt i nā noi kahi i ʻoi aku ka kiʻekiʻe o ka wela o ka kaʻa.

BLDC pohō ʻole kaʻa kaʻa ʻole

Ka manawa hoʻouna: Iulai-21-2023