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Electrical machine

  • US 9,935,506 B2
  • Filed: 08/29/2013
  • Issued: 04/03/2018
  • Est. Priority Date: 08/31/2012
  • Status: Expired due to Fees
First Claim
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1. A segment for supporting electromagnetic coupling elements of a stator or rotor of an electrical machine, comprising:

  • a plurality of elongate laminations which are stacked in a first direction to form a lamination stack with elongate edges of the laminations defining opposite first and second major faces of the lamination stack; and

    a plurality of elongate compression devices passing internally through the lamination stack in the first direction and arranged to compress together the laminations in the lamination stack;

    wherein each elongate compression device comprises;

    a central rod portion having first and second ends;

    first and second anchor portions at respective ones of the first and second ends of the central rod portion; and

    first and second collars fitted to respective ones of the first and second anchor portions; and

    wherein each anchor portion is of larger diameter than the adjacent part of the central rod portion.

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