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US 2022/0069645 A1Published application
Fully integrated electric machines and related technology
AssigneesOlivia Bruj, Ohio State Innovation Foundation
InventorsCodrin Cantemir, Olivia Bruj
Life of this patent
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Abstract
Improved electric machines with tuned coils, integrated power electronics, and stator and rotor cooling assemblies.
Claims52
A stator for an electric machine, the stator comprising:
- a stator core having an annular shape and having a plurality of slots in a circumferential arrangement, each of the plurality of slots extending axially from a proximal end to a distal end of the stator core;
- a first layer of conductors;
- and
- a second layer of conductors, wherein each conductor of the first layer and the second layer has:
- (i) an active part disposed inside a respective slot of the stator core, (ii) a proximal frontal part extending outside the respective slot at the proximal end of the stator core, and (iii) a distal frontal part extending outside the respective slot at the distal end of the stator core,
- wherein proximal frontal parts of the first layer of conductors have a first shape, and
- wherein proximal frontal parts of the second layer of conductors have a second shape different than the first shape.
4 more elements
An electric machine comprising:
- a shaft;
- an external rotor;
- and
- an internal stator, wherein the shaft extends axially through a center of the electric machine, the internal stator including:
- a stator core;
- a stator winding;
- and
- power electronics integrated inside the internal stator and disposed between the stator core and the shaft, the power electronics being electrically coupled to the stator winding.
5 more elements
An electric machine comprising:
- a rotor;
- a plurality of rotor bars disposed in a circular arrangement and extending axially through the rotor;
- and
- a hollow shaft disposed at a center of the electric machine and extending axially from a proximal end to a distal end, wherein the hollow shaft is in fluid communication with the plurality of rotor bars,
- wherein the hollow shaft is configured to receive a coolant at the proximal end and to transport the coolant toward the distal end, and
- wherein the hollow shaft is configured to receive spent coolant, at the distal end, returning back from the rotor and to transport the spent coolant toward the proximal end.
3 more elements
Dependencies are inferred from the claim text.