Permanent magnet rotor with reduced eddy current loss has holding elements in form of bolts joined only to cover plates and ending before cover plates on opposite side from joint

摘要

The device has magnets arranged about a shaft (2) with intermediate flux conducting pieces (6) of essentially circular segment cross-section held between cover plates (31,32) attached to the shaft and fixed by rod-shaped holding elements in the form of bolts (6) joined only to the cover plates and ending before the cover plates on the opposite side from the joint.