Patent ID: 8692431
Filing Date: 2014-04-08
Classification: H02K

Abstract:
1. A permanent magnet rotor comprising a shaft, a rotor core fixed to the shaft, a magnet disposed around the core, and a linker fixed to at least one of the shaft and the rotor core and located at one end of the core, wherein elastic pins are formed on one of the linker and the magnet and matching recesses are formed in the other one of the linker and the magnet, said recesses being formed in one end of the magnet proximate the linker and said elastic pins being formed on one side of the linker facing the magnet, said elastic pins being resiliently pressed against side walls of the recesses by means of elastic deformation of the pins caused by pressing the pins into the recesses, and wherein said recesses have side walls which are divergent with the axially inner side being narrower than the axially outer open side, and an axial slot is formed through the distal end of each of the elastic pins.