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Rotor assembly having anchors with undulating sides

  • US 4,445,062 A
  • Filed: 12/26/1978
  • Issued: 04/24/1984
  • Est. Priority Date: 12/26/1978
  • Status: Expired due to Term
First Claim
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1. A rotor comprising:

  • a hub having radially extending tongues with undulating sides equally spaced around the outer periphery of said hub;

    a plurality of wedge-shaped permanent magnets having outwardly converging sides and radially disposed around the outer periphery of said hub;

    a plurality of inwardly converging wedge-shaped support members, one support member being affixed to each of the sides of said permanent magnets;

    one side of each of said support members having an undulating groove into which the tongues of said hub interlock;

    said sides of said magnets forming an angle within the range of 2 to 9 degrees with a plane parallel to a central radius through said magnet such that the magnets are locked in place after said rotor ceases to rotate and the magnets will not fracture due to excessive compressive forces applied to the sides of said magnets.

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