Rotor segment of an electric machine
AssigneesThyssenkrupp Presta Teccenter AG, thyssenkrupp AG
InventorsDaniel PAUL, Jürgen MEUSEL
Life of this patent
Estimating the term…
Abstract
A rotor segment of an electric machine may include a rotor shaft and a laminated core, which is arranged on the rotor shaft in such a way that a gap dimensioned sufficiently large in the radial direction for the passage of a cooling medium is produced between an outer surface of a hollow cylinder shell and an inner surface of the laminated core. The rotor segment may further include two pressure elements that are held on the rotor shaft in a stationary manner such that the pressure elements axially clamp the laminated core. Further, at least one of the pressure elements is designed as a holding segment allowing cooling medium to pass through.
Claims15
1-13. (canceled)
A rotor segment of an electric machine, the rotor segment comprising:
- a rotor shaft having a hollow cylinder shell with an outer surface;
- a laminated core disposed on the rotor shaft such that an annular gap, which is dimensioned sufficiently large in a radial direction for passage of a cooling medium, is positioned between the outer surface of the hollow cylinder shell of the rotor shaft and an inner surface of the laminated core;
- and
- two pressure elements that are held on the rotor shaft in a stationary manner, axially clamping the laminated core, wherein at least one of the two pressure elements is configured as a holding segment that allows the cooling medium to pass through.
An electric machine comprising:
- a rotor segment that includes
- a rotor shaft having a hollow cylinder shell with an outer surface,
- a laminated core disposed on the rotor shaft such that an annular gap, which is dimensioned sufficiently large in a radial direction for passage of a cooling medium, is positioned between the outer surface of the hollow cylinder shell of the rotor shaft and an inner surface of the laminated core, and
- two pressure elements that are held on the rotor shaft in a stationary manner, axially clamping the laminated core, wherein at least one of the two pressure elements is configured as a holding segment that allows the cooling medium to pass through;
- a stator radially surrounding the rotor shaft;
- a stator winding;
- and
- a housing surrounding the stator, wherein the housing comprises a cooling duct sealed off from outer surroundings for conducting the cooling medium to cool the electric machine.
Dependencies are inferred from the claim text.