The rotor of a permanent magnet motor includes a stack of laminations. Each lamination is located with respect to a shaft using a key with a tangential fillet. Each lamination also includes a set of lightening holes having a shape designed to minimize hoop stresses and thereby increase the maximum permissible operating speed of the motor. Furthermore, the tightening holes are aligned with the key to minimize interactions of the respective stress concentrations.
Rotor lamination with key
2021-11-30
Patent
Electronic Resource
English
ROTOR LAMINATION, ROTOR LAMINATED CORE, ROTOR, ELECTRIC MACHINE, AND VEHICLE
European Patent Office | 2021
|Rotor lamination, rotor laminated core, rotor, electric machine, and vehicle
European Patent Office | 2024
|European Patent Office | 2025
|Lithium battery lamination structure and lamination method
European Patent Office | 2022
|PALLET, LAMINATION SYSTEM OF PALLET, AND LAMINATION METHOD
European Patent Office | 2021
|