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US 2026/0229972 A1Published application
Rotor of an axial flux induction machine
AssigneeAura Systems, Inc.
InventorsAli Sarikhani, Milad Darzi, Maryam Besharati-Givi, Harry Kurtzman
Life of this patent
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Abstract
An axial flux rotor assembly includes a shaft, a first conductive body, a second conductive body, and a magnetic body. The shaft includes a fluid inlet and a fluid outlet. The magnetic body coupled with the shaft and is disposed between and interlocked with the first conductive body and the second conductive body to form, with the first and second conductive bodies, a plurality of internal fluid conduits. Each of the plurality of fluid conduits are fluidly coupled with the fluid inlet and fluid outlet of the shaft.
Claims20
An axial flux rotor assembly, comprising:
- a shaft configured to be disposed within and rotatably coupled with a housing of an axial flux induction machine, the shaft comprising a fluid inlet and a fluid outlet;
- a first conductive body coupled with the shaft and comprising a first inner ring, a first outer ring, and a first plurality of bars spaced by first gaps and extending radially between and attached to the first inner ring and first outer ring;
- a second conductive body coupled with the shaft and comprising a second inner ring, a second outer ring, and a second plurality of bars spaced by second gaps and extending radially between and attached to the second inner ring and second outer ring;
- and
- a magnetic body coupled with the shaft and disposed between and interlocked with the first conductive body and the second conductive body, the magnetic body comprising an inner body and a plurality of radial liners extending from the inner body and each disposed within the first and second gaps to form, with the first and second conductive bodies, a plurality of fluid conduits enclosed and extending radially from the first and second inner rings to the first and second outer rings along and between each of the first and second plurality of bars, each of the plurality of enclosed, fluid conduits fluidly coupled with the fluid inlet and fluid outlet of the shaft.
2 more elements
An axial flux induction motor, comprising:
- a housing;
- a shaft rotatably coupled with the housing and comprising a fluid inlet and a fluid outlet;
- a first axial flux stator coupled with and disposed within the housing;
- a second axial flux stator coupled with and disposed within the housing;
- and
- an axial flux rotor disposed within the housing and residing between the first and second axial flux stators, the axial flux rotor coupled with the shaft and rotatable with respect to the first and second axial flux stators, the axial flux rotor comprising:
- a first conductive body comprising a first inner ring, a first outer ring, and a first plurality of bars spaced by first gaps and extending radially between and attached to the first inner ring and first outer ring,
- a second conductive body comprising a second inner ring, a second outer ring, and a second plurality of bars spaced by second gaps and extending radially between and attached to the second inner ring and second outer ring, and
- a magnetic body disposed between and interlocked with the first conductive body and the second conductive body, the magnetic body comprising an inner body and a plurality of radial liners extending from the inner body and each disposed within the first and second gaps to form, with the first and second conductive bodies, a plurality of fluid conduits enclosed and extending radially from the first and second inner rings to the first and second outer rings along and between each of the first and second plurality of bars, each of the plurality of enclosed, fluid conduits fluidly coupled with the fluid inlet and fluid outlet of the shaft.
6 more elements
An axial flux rotor cooling method, comprising:
- directing a cooling fluid into a fluid inlet of an axial flux induction motor, the axial flux induction motor comprising (i) a housing, (ii) a shaft rotatably coupled with the housing, the shaft comprising the fluid inlet and a fluid outlet, (iii) an axial flux stator coupled with and disposed within the housing, and (iv) an axial flux rotor disposed within the housing and coupled with the shaft, the axial flux rotor rotatable with respect to the axial flux stator, wherein the axial flux rotor comprises a plurality of internal fluid conduits extending radially from an inner surface of the axial flux rotor to an outer surface of the axial flux rotor, each of the plurality internal fluid conduits fluidly coupled with the fluid inlet and fluid outlet of the shaft;
- directing the cooling fluid along a cooling fluid flow path of the axial flux rotor, the cooling fluid flow path extending from the fluid inlet, through the plurality of fluid conduits, and to the fluid outlet, allowing the cooling fluid to cool the axial flux rotor;
- and
- directing the cooling fluid out of the axial flux induction motor through the fluid outlet.
1 more element
Dependencies are inferred from the claim text.