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Title:
HYBRID SYNCHRONOUS MOTOR EQUIPPED WITH ANNULAR WINDING
Document Type and Number:
WIPO Patent Application WO/2001/052388
Kind Code:
A1
Abstract:
A hybrid synchronous motor comprising a rotor and stators, wherein the stator has at least one assembly (7) having a structure in which ferromagnetic rings (2, 3) formed with teeth on the both inner peripheral edges and outer peripheral edges thereof are arranged coaxially, and a coil winding (8) is wound on the assembly (7) so as to be positioned between teeth. The hybrid synchronous motor has a magnetic flux in a laterally-crossing direction of a permanent magnet coupled with a magnetic flux in a longitudinally-crossing direction of a coil in an air gap, and a high-efficiency surface in an air gap between two layers (inner side, outer side) containing a pair of stators only can provide a high-density magnetic flux in an air gap. In addition, the motor has a single set of stator coils only and therefore can be produced using conventional production techniques with fewer assembling components and at lower costs. It is excellent in energy efficiency due to a small resistance loss.

Inventors:
DETELA ANDREJ (SI)
Application Number:
PCT/JP2001/000070
Publication Date:
July 19, 2001
Filing Date:
January 10, 2001
Export Citation:
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Assignee:
HARMONIC DRIVE SYSTEMS (JP)
DETELA ANDREJ (SI)
International Classes:
H02K7/08; H02K16/00; H02K37/06; H02K37/12; H02K37/20; H02K19/00; H02K29/00; (IPC1-7): H02K37/06
Foreign References:
JPH09182405A1997-07-11
JPS63103648A1988-05-09
JPH0161879U1989-04-20
Other References:
See also references of EP 1193845A4
Attorney, Agent or Firm:
Yokozawa, Shiro (1132-18, Shimadachi Matsumoto-shi, Nagano, 390-0852, JP)
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