Title:
GAP-WINDING MOTOR
Document Type and Number:
WIPO Patent Application WO/2004/010565
Kind Code:
A1
Abstract:
A gap-winding motor optimized in the charged amount of permanent magnets and capable of being shortened in design time. A gap-winding motor comprising a stator provided with a stator core (5) and a rotating magnetic field-forming stator coil (4) mounted to the inner peripheral surface of the stator core (5), and a rotor provided with a rotor core (1) and a plurality of permanent magnets (2) mounted on the outer peripheral surface of the rotor core (1) and being located so as to face the stator coil (4) via a space, wherein the number Np of magnetic poles of the motor is an integer of multiples of two represented by the relation, Np = 0.11 × d (gap diameter: mm) + a (a ranging from 3 to 7), a combination of the number of magnets and the number of stator coils is at 4:3, a ratio As between a value Lmg obtained by adding the thickness Lm of a permanent magnet forming a magnetic pole to a space interval Lg from a magnetic pole surface to a stator core and a value obtained by dividing the four times the perimeter of a gap diameter by the number of magnetic poles is 9-15.
Inventors:
MIYAMOTO TAKASHI (JP)
Application Number:
PCT/JP2003/007166
Publication Date:
January 29, 2004
Filing Date:
June 05, 2003
Export Citation:
Assignee:
YASKAWA DENKI SEISAKUSHO KK (JP)
MIYAMOTO TAKASHI (JP)
MIYAMOTO TAKASHI (JP)
International Classes:
H02K1/12; H02K1/22; H02K1/27; H02K3/47; H02K21/14; (IPC1-7): H02K21/14; H02K1/12
Foreign References:
| JP2002159152A | 2002-05-31 | |||
| JPH08322167A | 1996-12-03 | |||
| US5536987A | 1996-07-16 | |||
| JPS5849054A | 1983-03-23 | |||
| EP0642210A1 | 1995-03-08 | |||
| JP2001275285A | 2001-10-05 | |||
| JP2000134893A | 2000-05-12 | |||
| JP2003009438A | 2003-01-10 |
Download PDF: