internal permanent magnet machine, method for jointly arranging an internal permanent magnet machine and rotor assembly for use in an internal permanent magnet machine

摘要

internal permanent magnet machine, method for jointly arranging an internal permanent magnet machine and rotor assembly for use in an internal permanent magnet machine is an internal permanent magnet machine which includes a rotor assembly having a rod comprising a plurality of protrusions extending radially outwardly of a main stem body and being circumferentially formed around the main stem body and along an axial length of the main stem body. a plurality of lamination stacks are circumferentially arranged around the rod to receive the plurality of protrusions thereon, wherein each lamination stack includes a plurality of axially arranged lamination groups along a length of the rod and permanent magnets being arranged between the stacks of laminations. each of the laminations includes a rod protrusion cut formed therein to receive a respective rod protrusion and, for each of the lamination stacks, the rod protrusion cuts formed in the laminations of a respective lamination group are angularly offset from the stem protrusion sections formed on the laminations in an adjacent lamination group.