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Slip ring unit for a rotor of an electrically excited rotary dynamo-electric machine

  • US 10,389,074 B2
  • Filed: 03/30/2016
  • Issued: 08/20/2019
  • Est. Priority Date: 04/17/2015
  • Status: Active Grant
First Claim
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1. A slip ring unit for an electrically excited rotor of a rotary dynamo-electric machine, said slip ring unit comprising:

  • an electrical terminal protruding axially from an end face of the slip ring unit and having a contact point;

    a circumferential slip contact surface electrically connected to the electrical terminal;

    an insulation element disposed adjacent to the slip contact surface;

    end plates axially retaining the circumferential slip contact surface and the insulation element;

    an electrically insulated support element arranged on an end face of the slip ring unit and having a cross section which substantially matches a cross section of the slip ring unit, said support element disposed in axial surrounding relation to the electrical terminal and radially supporting the electrical terminal; and

    an insulation surrounding the electrical terminal such that the contact point remains exposed.

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