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US 7,030,533 B2Granted
Rotary electric machine
AssigneeDenso Corporation
InventorAtsushi Umeda
Life of this patent
Estimating the term…
Abstract
A rotary electric machine having an armature winding that includes three first phase-windings that form a Δ-connection winding having output ends and three second phase-windings that are respectively connected in series to the output ends to form a star-connection three-phase winding having output ends connected to a rectifier unit.
Claims8
A rotary electric machine, comprising:
- a cylindrical stator core;
- a pair of armature windings mounted in said stator core to be shifted by π/6 in electric angle from each other;
- and
- a pair of three-phase rectifier units, wherein:
- each said armature winding has a first group of Δ-connected three-phrase windings having three junctions that are 2π/3 in electric angle different from each other and a second group of three-phase windings having three output ends that are 2π/3 in electric angle different from each other and three input ends respectively connected in series to said junctions of said first group;
- and
- said three output ends of said second group of three-phase windings of each said armature winding are connected to one of said pair of rectifier units.
4 more elements
A rotary electric machine including a cylindrical stator core having an axial end surface, an armature winding mounted in said stator core and a pair of three-phase rectifier units, wherein:
- said armature winding has a pair of three-phase sub-armature windings and six output terminals respectively connected to said three-phase rectifiers;
- each of said sub-armature windings comprises a first group of Δ-connected three-phase windings having junctions that are by 2π/3 different in electric angle from each other and a second group of three-phase windings having output ends that are by 2π/3 different in electric angle from each other and are connected to one of said rectifier units and input ends respectively connected in series to said junctions of said first group;
- and
- said pair of three-phase sub-armature windings is disposed in said stator core to be shifted by π/6 in electric angle from each other so that said six output terminals are different in electric angle from each other.
1 more element
Dependencies are inferred from the claim text.