A WOUND COVER ARRANGEMENT FOR AN ELECTRIC MOTOR ROTOR

摘要

A wound cover arrangement for an electric motor rotor, said rotor including a core (20), magnets (30) surrounding said core and a cover (10), which is wound around the core, in order to retain said magnets (30) on said core, said arrangement comprising a pair of mold end elements (40), each mounted to an end face portion of the rotor core (20) and to the adjacent end face of at least one of the parts defined by the cover (10) and magnets (30), and which has a peripheral edge portion (41) provided with at least one recess (43) extending towards the rotor axis, the distance between said rotor and the bottom of said recess (43) defining the smallest winding end radius of the cover.