Sew through eciter armature with integral banding rings
AssigneeSundstrand Corporation
InventorFrank D. Kahle, Sr.
Life of this patent
Estimating the term…
Abstract
An improved armature assembly includes an armature stack mounted coaxially with a rotatable shaft. Conductive windings are disposed in the armature stack in accordance with a preselected winding sequence. The conductive windings include end turns which extend longitudinally beyond the armature stack. End plates are disposed at opposing ends of the armature stack. Each end plate includes an integral banding ring in the form of a retaining flange located radially outwardly of, and in a supporting relation to, the end turns. Each end band further includes a centrally located aperture which is adapted to receive the rotatable shaft and maintain concentricity of between end plate, the armature stack and the rotatable shaft.
Claims22
An armature assembly rotatably driven by a rotatable shaft, comprising:
- an armature stack having a plurality of longitudinal winding slots and being mounted coaxially with the rotatable shaft for rotation therewith;
- a plurality of conductive windings disposed in the winding slots in accordance with a preselected winding sequence, the conductive windings including end turns which extend longitudinally beyond the armature stack;
- first and second end plates disposed at opposing ends of the armature stack, each end plate including no more than one retaining flange and a centrally located aperture, the flange being located radially outwardly of, and in a supporting relation to, the end turns, and the aperture being adapted to receive the rotatable shaft and maintain concentricity between the end plates, the rotatable shaft, and the armature stack.
An end plate for use in an armature assembly having an armature stack including winding slots and a plurality of conductive windings disposed in winding slots, the conductive windings terminating in end turns which extend longitudinally beyond the armature stack, the armature assembly being concentrically mounted about a rotatable shaft for rotation therewith, said end plate comprising:
- a disc having a centrally located aperture and a plurality of winding apertures, the centrally located aperture being adapted to receive the rotatable shaft and maintain concentricity between the end plate, the rotatable shaft and the armature stack, and the winding apertures being adapted to receive the conductive windings and being located so as to align with the winding slots when the disc is mounted on the shaft;
- and
- no more than one retaining flange integrally formed with the disc and being located radially outwardly of, and in a supporting relation to, the end turns.
A generator exciter for converting mechanical energy from a rotatable shaft into electrical energy, comprising:
- a stator being adapted to produce a DC field;
- a cylindrical armature stack mounted concentrically with the rotatable shaft for rotation relative to the stator and including conductive windings connected to generate electrical power in response to rotation through the DC field, the conductive windings including end turns which extend longitudinally beyond the armature stack;
- first and second end plates disposed at opposing ends of the armature stack, each end plate including no more than one retaining flange and a centrally located aperture, the flange being located radially outwardly of, and in a supporting relation to, the end turns, and the aperture being adapted to receive the rotatable shaft and maintain concentricity between the end plates, the rotatable shaft, and the armature stack;
- and
- insulating means for electrically insulting the windings and armature stack from the end plates.
Dependencies are inferred from the claim text.