US 2004/0163232 A1Published application

Winding stator pole portions

AssigneeAxis USA, Inc.

InventorsRaffaele Becherucci, Gianfranco Stratico

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Abstract

Apparatus and methods for winding wire around the poles and partly within the slots of dynamoelectric machine components, such as stators. Some stators are designed with poles having pole tips that extend relatively far in a peripheral direction, perhaps reaching nearly half way across the stator core. When the pole tips reach so far around the stator core and thus leave little room between opposing pole tips, it may be difficult to use winding technologies with needles that need to move between opposing pole tips. Therefore, stators may be divided into segments for the winding of each pole, and then reassembled to form a complete stator. The segments are wound by rotating the segment and a wire guide structure about an axis, while providing wire to the rotating apparatus from a wire source.

Claims27

Dependent claims

Apparatus for winding a coil of wire on a segment of a stator for a dynamoelectric machine, which stator has a central longitudinal axis spaced from the segment but substantially parallel to a longitudinal dimension of the segment, the segment including joining areas and first and second, substantially parallel, longitudinal slots on respective opposite sides of a longitudinal pole, the slots having generally U-shaped cross sections and being inclined toward one another toward the bases of their U shapes, the coil being wound around the pole and partly in the slots, the apparatus comprising:

a drive structure adapted to rotate the segment about a rotation axis that is substantially perpendicular to the longitudinal axis;
a wire guide structure adapted for rotation with the segment and for guiding wire into the slots;
and
a wire source that is located radially out from the wire guide structure but that does not rotate about the rotation axis, the wire guide structure having surface portions that are shaped to guide wire from the wire source to wind around the pole, including alternately in the first and second slots, as the segment and the wire guide structure rotate about the rotation axis;
wherein the wire is guided into the slots from a position located on one side of a plane containing the joining areas and the longitudinal axis and the slots are located on the other side of the plane.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/789,227Filed 26 Feb 2004
Priority: 19 Apr 2001
Published: 26 Aug 2004
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H02K 15/095
Forming windings by laying conductors into or around core parts: by laying conductors around salient poles
Y10T 29/49009
Electrical device making: dynamoelectric machine
Y10T 29/53143
Means to assemble electrical device: motor or generator
H02K
Dynamo-electric machines

Family

Application60/285,064Us provisional application · filed 19 Apr 2001
Application10/122,710Continuation · filed 12 Apr 2002
Application10/789,227Continuation · filed 26 Feb 2004
US 2002/0162912 A1Published application
US 2004/0163232 A1This patent

From the US filing history. Foreign family members aren’t listed.