초록 ▼

An electric two motor drive is disclosed in which the field winding of a commutator motor having few poles and the stator winding, distributed in slots, of an induction motor having a larger number of poles are both arranged on a common stator lamination stack. The field winding is wound around part

An electric two motor drive is disclosed in which the field winding of a commutator motor having few poles and the stator winding, distributed in slots, of an induction motor having a larger number of poles are both arranged on a common stator lamination stack. The field winding is wound around part of the circumference of the stator lamination stack in the manner of a concentrated ring armature winding. Either a closed or an open stator lamination stack may be provided. The invention is applicable particularly to a two speed motor drive for an automatic washing machine having a single lamination stack for the series and induction motor windings.

대표청구항 ▼

In a stator for use in an electric two motor drive, the stator including a stator lamination stack; a commutator motor field winding having a small number of poles, such as two, disposed on the lamination stack; and an induction motor winding having a larger number of poles distributed in slots in t

In a stator for use in an electric two motor drive, the stator including a stator lamination stack; a commutator motor field winding having a small number of poles, such as two, disposed on the lamination stack; and an induction motor winding having a larger number of poles distributed in slots in the stack, the improvement comprising; the lamination stack having an air gap and a single field excitation winding carried on a region of the circumference of the stack at a location 180°around the circumference away from the gap, the field winding being in the form of a concentrated ring armature winding.