Electrical inductor device
AssigneeFord Global Technologies, LLC
InventorsWanfeng Li, Chuanbing Rong, Michael W. Degner
Life of this patent
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Abstract
An inductor that is configured to store energy in a magnetic field includes a wire and a core. The wire is configured to deliver electrical current to the inductor to generate the magnetic field. The core is disposed radially about the wire. The core comprises magnetic particles that are suspended in a non-magnetic matrix. The magnetic particles are arranged such that a magnetic permeability of the core increases in a direction that extends radially outward from the wire along a cross-sectional area of the magnetic core from a first region that is adjacent to the wire to a second region that is adjacent to an outer periphery of the magnetic core.
Claims17
An inductor configured to store energy in a magnetic field comprising:
- a magnetic core defining a central orifice, the magnetic core comprising a magnetic powder suspended in a non-magnetic matrix, the magnetic powder having spherically-shaped particles and flake-shaped particles that are arranged such that a ratio of the flake-shaped particles to the spherically-shaped particles varies in a direction that extends radially outward from the central orifice along a cross-sectional area of the magnetic core from a first region that is adjacent to the central orifice to a second region that is adjacent to an outer periphery of the magnetic core and such that a magnetic permeability of the magnetic core varies in the direction that extends radially outward from the central orifice along the cross-sectional area, of the magnetic core;
- and
- an electrical conductor disposed within the central orifice and configured to deliver electrical current to the inductor to generate the magnetic field.
An inductor configured to store energy in a magnetic field comprising:
- a wire configured to deliver electrical current to the inductor to generate the magnetic field;
- and
- a core disposed radially about the wire, the core comprising magnetic particles suspended in a non-magnetic matrix, wherein the magnetic particles are arranged such that a magnetic permeability of the core increases in a direction that extends radially outward from the wire along a cross-sectional area of the core from a first region that is adjacent to the wire to a second region that is adjacent to an outer periphery of the core.
Dependencies are inferred from the claim text.