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Electric motor having a field assembly with slot insulation

  • US 20050099085A1
  • Filed: 09/03/2004
  • Published: 05/12/2005
  • Est. Priority Date: 09/05/2003
  • Status: Active Grant
First Claim
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1. A method of making an electric motor, comprising:

  • a. forming field coils to a predetermined shape;

    b. forming pole pieces and return path pieces;

    c. placing an insulating sleeve over each portion of the field coil that will be disposed between one of the pole pieces and one of the return path pieces mated to that pole piece prior to placing the field coil on that pole piece and after forming the field coil to the predetermined shape;

    d. placing the field coils with the insulating sleeves thereon on the pole pieces;

    e. mating the pole pieces and return path pieces after placing the field coils on the pole pieces to form a stator; and

    f. placing an armature in the stator.

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