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METHOD OF MANUFACTURING AN ELECTRIC ROTARY MACHINE

  • US 3,827,141 A
  • Filed: 04/19/1973
  • Issued: 08/06/1974
  • Est. Priority Date: 05/17/1972
  • Status: Expired due to Term
First Claim
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1. A method for manufacturing an electric rotary machine comprising a rotor and a stator core consisting of a plurality of circumferentially spaced radially directed teeth defining stator slots, a thin walled tubular element of non-magnetic material disposed interiorly of the teeth, windings in the stator slots and a moulding securing the tubular member, windings and stator teeth to provide a rigidly assembled stator unit consisting of the steps of forming the teeth from a a plurality of laminations, said teeth having substantially their final dimension, supporting the stator teeth so that the stator slots open radially outwardly, positioning the tubular member interiorly of the teeth so that it extends axially outwardly beyond the end faces of the stator core to provide aligning and abutment means for supporting the rotor within the stator, inserting the windings in the stator slots, applying a curable moulding compound to secure the teeth and stator windings as an integral assembly, assembling the rotor in the stator so that it is positioned by the aligning and abutment means.

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