Rotary electric machine
AssigneeDenso Corporation
InventorAtsushi Umeda
Life of this patent
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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.
Claims21
A rotary electric machine including a cylindrical stator core having an axial end surface, an armature winding mounted in said stator core, said armature winding having a first group of Δ-connected three phase-windings having junctions that are 2π/3 in electric angle different from each other and a second group of three phase-windings having output ends that are 2π/3 in electric angle different from each other and input ends respectively connected in series to said junctions of said first group,
- wherein each junction of said first group and one of said input ends of said second group connected thereto is disposed on the axial end surface to be predetermined distance spaced apart from another junction.
A rotary electric machine, comprising:
- a stator including a stator core and a three-phase armature winding mounted in the stator core;
- a rotor having a plurality of magnetic poles;
- and
- a rectifier unit;
- wherein said armature winding has a first group of Δ-connected three phase-windings having junctions that are 2π/3 in electric angle different from each other and a second group of three phase-winding having output ends that are 2π/3 in electric angle different from each other and input ends respectively connected in series to said junctions of said first group, and
- said junctions of said Δ-connection winding are distributed at an end surface of said stator core in an angular range that is more than 180 degrees in mechanical angle.
A rotary electric machine including a cylindrical stator core having an axial end surface, an armature winding mounted in said stator core, said armature winding having a first group of Δ-connected three phase-windings having junctions that are different in electric angle from each other and a second group of three phase-windings having output ends that are different in electric angle from each other and input ends respectively connected in series to said junctions of said first group,
- wherein each junction of said first group and one of said input ends of said second group connected thereto is disposed on the axial end surface to be predetermined distance spaced apart from another junction.
Dependencies are inferred from the claim text.