[mirceait]

Salut, vreau sa fac un motor brushless pentru o bicicleta electrica. Am cativa statori cu 16 magneti neodinium fiecare dimensiunile magnetilor fiing 26*14*2.5mm.
http://img152.imageshack.us/img152/8825/p1080402wt2.th.jpg

Diametrul interior al statorului este 81mm. As avea nevoie de putin ajutor la proiectarea motorului .Cum pot determina puterea maxima care o pot obtine eficient din acesti magneti si care este numatul de poli optim din stator pentru o putere maima la o turatie cat mai dedusa?
Si din ce material pot face tolele statorului (tole de transformator sunt bune?)sau de la ce le pot imprumuta(de exemplu statorul de la un flopy vechi cu 12 bobine se potriveste ca diametru dar are cam putine tole) . Este o forma anume care trebuie sa o aiba in caz ca le fac de la o ?
Se poate adopta solutia statorului fara tole? Care este turatia minima la care pot pastra puterea maxima la acest stator?
Astept pareri is multumesc anticipat! B)

[trupi]

Daca ma gadesc putin... cred ca, ce ai tu acolo ar trebui sa fie rotorul. La motoarele BL statorul este cel fix si contine infasurarile motorului. De unde ai colivia cu magneti?
Cred ca ai putea folosi un pachet de tole recuperate de la rotorul unui motor cu perii, dar care sa se potriveasca la dimensiune. Despre calcul...nu stiu prea multe.

Aceasta postare a fost editata de trupi: 22 July 2008 - 01:02 PM

[mirceait]

Intreadevar colivia cu magneti va deveni rotorul motorului Bl si lolele alcatuiesc sttorul, dar are cineva vre-o idee unde pot gasi stator de dimensiunea potrivita 80mm diametru ? sau din ce material sa le confectionez?

[SILVIU66]

cauta un pic in subiectele deschise de ron van sommeren.propabil ca o sa gasesti toate informatiile de care ai nevoie.

uite un link:
http://www.rhc.ro/forumrhc2/index.php?act=...s&highlite=home

[ron_van_sommeren]

Could someone do a quick and dirty translation of the questions/problems for me so I can have a look at it?

I had a hard disk crash, changed from Windows to Linux/Xubuntu (piece of cake), that's way I have not checked fora for about a month.

Vriendelijke groeten :lol: Ron

Aceasta postare a fost editata de ron_van_sommeren: 06 August 2008 - 04:56 AM

[ave]

ron_van_sommeren, la Aug 6 2008, 05:54 AM, a spus:

Could someone do a quick and dirty translation of the questions/problems for me so I can have a look at it?

Basically mirceait is trying to build a BL outrunner to use with his electric bicycle. He has several rotors featuring 16 neodymium magnets; the magnets' sizes are 26 x 14 x 2.5 mm. His question was about finding a ~80 mm stator (with or without windings). The inner diameter of the ring is about 81 mm.
What's the method for calculating the power that can be obtained from these magnets and what is the optimal no. of poles for best power at the lowest possiblem RPM?
Also, what is the best material for the windings' core (transformer sheet plates, for example). Is there a recommended shape if they are built from scratch?
Are the core-less windings a solution? What is the available power with this option?

Citeaza

I had a hard disk crash, changed from Windows to Linux/Xubuntu (piece of cake), that's way I have not checked fora for about a month.

Sorry for the crash, hope you did not lose valuable data. Congrats for migrating to Xubuntu :blink:

Best regards,

Aceasta postare a fost editata de ave: 08 August 2008 - 05:15 PM