Patent ID: 7554238
Filing Date: 2009-06-30
Classification: H02K

Abstract:
1. A multi-winding motor, comprising: a stator core having F×M (F and M being an integer of 2 or more) magnetic pole sections; and N (N being a measure of M) F-phase exciting windings wound on said F×M magnetic pole sections, wherein said F×M magnetic pole sections are provided with N kinds of discrete winding wirings distinguished from each other depending on disposed positions at which the discrete winding wirings are disposed with respect to said magnetic pole sections; wherein an exciting winding for one phase in one F-phase exciting winding of said N F-phase exciting windings is constructed from M of said N kinds of discrete winding wirings provided at each of the F×M magnetic pole sections, the M discrete winding wirings being selected one by one from those provided at each of M magnetic pole sections selected from said F×M magnetic pole sections; an exciting winding for one phase in another F-phase exciting winding of said N F-phase exciting windings is constructed from M of said N kinds of discrete winding wirings other than those already selected at each of the magnetic pole sections, the M discrete winding wirings being selected one by one from those not yet selected at each of M magnetic pole sections selected from said F×M magnetic pole sections; thus, N exciting windings are constructed for said M magnetic pole sections; wherein said N F-phase exciting windings are constructed in such a manner that corresponding N of said exciting windings form an identical phase of said N F phase exciting windings; and wherein said M discrete winding wirings constructing the exciting winding for one phase include M/N discrete winding wirings selected from each of said N kinds of discrete winding wirings.