Patent ID: 8598761
Filing Date: 2013-12-03
Classification: H02K,Y10T

Abstract:
1. A device for positioning a planar array of magnets within a permanent magnet electrical machine, the machine including a rotor and a stator with an air gap there between, the device including a body made of non-magnetic and non-electrically conductive material and having a first side which is attachable to the rotor and a second side which, in an assembled machine, faces the air gap, the first side of the body having an inner support ring, an outer support ring, and a plurality of recesses therein for receiving a corresponding plurality of magnets, the recesses being shaped and arranged to separate the magnets from each other and maintain a consistent spacing between them, such that when the device is attached to the rotor the magnets are held in a fixed position against the rotor, the device further including at least one connector extending from the outer support ring for attaching the body to the rotor.