×

System and method for stator construction of an electric motor

  • US 9,806,587 B2
  • Filed: 08/22/2014
  • Issued: 10/31/2017
  • Est. Priority Date: 08/26/2013
  • Status: Active Grant
First Claim
Patent Images

1. A method to reduce core loss in an electric motor by preparing laminates of at least one of the stator and rotor such that, upon assembly into a stator and rotor of an electric motor and operated within expected parameters, core loss is reduced, comprising:

  • forming at least one of a stator and a rotor laminate;

    subjecting the at least one stator and rotor laminate to a reduced temperature bath; and

    assembling a plurality of the stator and rotor laminates into a stator and rotor of an electric motor, respectively, such that upon operation, the electric motor exhibits reduced core loss,wherein the at least one stator and rotor laminate is subjected to the reduced temperature by submersion of the laminate into a cold bath,wherein the at least one stator and rotor laminate remains submersed in the cold bath for a period of up to 8 hours and is then removed in a reverse process until completely free of the cold bath, andwherein the at least one stator and rotor laminate is held free of the cold bath and allowed to substantially reach room temperature before assembly.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×