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Motor armature having distributed windings for reducing arcing

  • US 20040017124A1
  • Filed: 07/03/2003
  • Published: 01/29/2004
  • Est. Priority Date: 06/14/2000
  • Status: Active Grant
First Claim
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1. An electric motor having an armature, the electric motor comprising:

  • a lamination stack forming the armature, and having a plurality of radially extending, spaced apart posts, said posts forming a plurality of slots therebetween;

    a first coil having first and second subcoil portions, said first subcoil portion being wound in a first pair of said slots, and said second subcoil portion being wound in a second pair of said slots that are offset from said first pair of slots;

    a second coil having a first subcoil portion wound in said second pair of said slots, and a second subcoil portion wound in a third pair of said slots offset from said second pair of slots;

    a third coil having first and second subcoil portions wound in the same slots as said subcoil portions of said second coil; and

    a plurality of additional coils wound in said slots such that a winding pattern defined by said subcoil portions of said first, second and third coils is repeated.

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