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US 2025/0132613 A1Published application
Material With Directional Microstructure
AssigneePersimmon Technologies Corporation
InventorsMartin Hosek, Jayaraman Krishnasamy
Life of this patent
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Abstract
A material comprises at least one layer of a plurality of domains, each domain being flattened in a first direction and elongated in a second direction normal to the first direction. The flattened and elongated domains define an anisotropic microstructure that facilitates a magnetic flux flow in the second direction.
Claims10
A stator core of a radial-field electric motor, the stator core comprising:
- a yoke having a ring structure;
- and
- tooth structures extending radially inward from an inner-facing surface of the yoke;
- wherein the yoke comprises a material defined by at least one first layer and at least one second layer, each of the at least one first layer and the at least one second layer comprising a plurality of domains, the domains of the at least one first layer being in contact with each other and the domains of the at least one second layer being in contact with each other, each domain being flattened in a first direction and elongated in a second direction normal to the first direction, wherein the material is further defined by at least one third layer between the at least one first layer and the at least one second layer, the at least one third layer comprising a plurality of domains, wherein the domains of an upper surface of the at least one third layer are deformed on upper surfaces thereof to engage and correspond to lower surfaces of the domains in the at least one first layer, and wherein the domains of a lower surface of the at least one third layer are deformed on lower surfaces thereof to engage and correspond to upper surfaces of the domains in the at least one second layer;
- wherein the flattened and elongated domains of the at least one first layer and the at least one second layer define an anisotropic microstructure that facilitates a magnetic flux flow in the second direction in the yoke;
- and
- wherein the domains of the at least one third layer define an electrically insulating boundary separating the at least one first layer from the at least one second layer.
4 more elements
A stator winding core of a hybrid-field electric motor, the stator winding core comprising:
- a yoke having a ring structure;
- a plurality of teeth on an inner-facing surface of the yoke;
- wherein the yoke and the teeth each comprise a material defined by at least one first layer and at least one second layer, each of the at least one first layer and the at least one second layer comprising a plurality of domains, the domains of the at least one first layer being in contact with each other and the domains of the at least one second layer being in contact with each other, each domain being flattened in a first direction and elongated in a second direction normal to the first direction, wherein the material is further defined by at least one third layer between the at least one first layer and the at least one second layer, the at least one third layer comprising a plurality of domains, wherein the domains of an upper surface of the at least one third layer are deformed on upper surfaces thereof to engage and correspond to lower surfaces of the domains in the at least one first layer, and wherein the domains of a lower surface of the at least one third layer are deformed on lower surfaces thereof to engage and correspond to upper surfaces of the domains in the at least one second layer;
- wherein the flattened and elongated domains define an anisotropic microstructure that facilitates a magnetic flux flow in the second direction in the domains of the yoke and the teeth;
- and
- wherein the at least one third layer comprises an electrically insulating boundary separating the at least one first layer from the at least one second layer.
3 more elements
Dependencies are inferred from the claim text.