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CHANNEL, SHAPED, LAMINATED, HIGH TEMPERATURE SLOT WEDGE FOR DYNAMOELECTRIC MACHINES

  • US 3,735,169 A
  • Filed: 04/14/1971
  • Issued: 05/22/1973
  • Est. Priority Date: 04/04/1971
  • Status: Expired due to Term
First Claim
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1. A dynamoelectric machine including:

  • a. a stator core having means for defining a plurality of coil receiving slots, said slots having overhanging teeth portions partially enclosing said slots, b. insulating slot liner means positioned along the interior surfaces of said slots, c. coil windings positioned within said slots and insulated from the interior surfaces thereof by said slot liner means, d. slot wedge means for closing the top of said slot means comprising;

    1. a thin, laminated, high temperature, channel shaped slot wedge having longitudinal rigidity and sharp corners positioned under said slot teeth with the corners of said channel conforming to said slot teeth to securely anchor said wedge against the teeth, said wedge partially overlapping said slot liner, 2. said slot wedge being formed of a plurality of layers of thin, high temperature, normally resilient layers of plastic, 3. a cured, rigid adhesive positioned between and securing said layers to retain the normally resilient layers in a rigid, channel shape with sharply defined corners.

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