A coil component includes a body having a first surface and a second surface facing each other, and having a plurality of wall surfaces connecting the first surface to the second surface; an insulating substrate; a coil portion comprising a first lead-out pattern and a second lead-out pattern each covered with the body and disposed on the insulating substrate; a first external electrode and a second external electrode disposed on the first surface of the body and spaced apart from each other; a first connection electrode and a second connection electrode respectively extending from the first and second lead-out patterns to the first and second external electrodes; and a first support portion and a second support portion respectively extending from the coil portion to be exposed to one of the plurality of wall surfaces, and respectively disposed to be spaced apart from the first and second lead-out patterns.

A coil component includes a body having a first surface and a second surface facing each other, and having a plurality of wall surfaces connecting the first surface to the second surface; an insulating substrate; a coil portion comprising a first lead-out pattern and a second lead-out pattern each covered with the body and disposed on the insulating substrate; a first external electrode and a second external electrode disposed on the first surface of the body and spaced apart from each other; a first connection electrode and a second connection electrode respectively extending from the first and second lead-out patterns to the first and second external electrodes; and a first support portion and a second support portion respectively extending from the coil portion to be exposed to one of the plurality of wall surfaces, and respectively disposed to be spaced apart from the first and second lead-out patterns.

A transformer for power line reactance injection that can be adapted in manufacturing to different operating current ranges by interchanging primary windings having one, two, three, four or more laminar turns. Through its use of gaps in the magnetic circuit that are filled with high temperature, high thermal conductivity dielectrics, this transformer has tolerance to very high fault currents, and it can be passively cooled by the use of fins on the exterior walls of the core.

A transformer core includes two stacks, each of first thickness with ≥1 flat parts, the cutting directions rectilinear and parallel or perpendicular to one another, the stacks facing across a gap, the flat parts made of an austenitic FeNi alloy 30-80% Ni and 10% alloying elements, with a sharp {100} <001> cubic texture, the cutting directions of the flat parts parallel to the rolling or transverse direction, the flat parts having magnetic losses, for a maximum induction of 1 T, <20 W/kg at 400 Hz, producing apparent magnetostriction for maximum induction values and field directions as follows: 1.2 T<5 ppm, large side of the sample parallel to rolling direction; 1.2 T<5 ppm, large side of the sample parallel to transverse direction in the rolling plane; and 1.2 T<10 ppm, length direction parallel to intermediate direction 45° to rolling and transverse directions.

A transformer core includes two stacks, each of first thickness with ≥1 flat parts, the cutting directions rectilinear and parallel or perpendicular to one another, the stacks facing across a gap, the flat parts made of an austenitic FeNi alloy 30-80% Ni and 10% alloying elements, with a sharp {100} <001> cubic texture, the cutting directions of the flat parts parallel to the rolling or transverse direction, the flat parts having magnetic losses, for a maximum induction of 1 T, <20 W/kg at 400 Hz, producing apparent magnetostriction for maximum induction values and field directions as follows: 1.2 T<5 ppm, large side of the sample parallel to rolling direction; 1.2 T<5 ppm, large side of the sample parallel to transverse direction in the rolling plane; and 1.2 T<10 ppm, length direction parallel to intermediate direction 45° to rolling and transverse directions.

The disclosure is directed to wireless power systems that include a ferromagnetic core formed of nanocrystalline material disposed on a ferrite. The wireless power systems can have reduced saturation and/or lossiness.

Metal laminate cores can be assembled with laser pin welding through a thickness of a first laminate into a second laminate and successively laser pin welding a plurality of second laminates, ending with a third laminate to form the core stack. The laser pin welds are located within an outer perimeter of one or more of the laminates. Such laminated cores are often utilized in electrical motors, generators, transformers, lighting and other applications. The laser pin welds can be selectively provided under the control of a processor to index about the parts and/or change in intensity or even skip certain parts so as to be able to begin and end cores for some embodiments while also facilitating manual and/or automated stacking/welding embodiments and/or relative rotation of the cores.

Metal laminate cores can be assembled with laser pin welding through a thickness of a first laminate into a second laminate and successively laser pin welding a plurality of second laminates, ending with a third laminate to form the core stack. The laser pin welds are located within an outer perimeter of one or more of the laminates. Such laminated cores are often utilized in electrical motors, generators, transformers, lighting and other applications. The laser pin welds can be selectively provided under the control of a processor to index about the parts and/or change in intensity or even skip certain parts so as to be able to begin and end cores for some embodiments while also facilitating manual and/or automated stacking/welding embodiments and/or relative rotation of the cores.

A coil component according to one or more embodiments includes a base body having first to sixth surfaces, and a coil conductor including a winding portion that extends around a coil axis intersecting the first and second surfaces. The winding portion includes first, second, third, and fourth portions facing the third, fourth, fifth, and sixth surfaces, respectively when viewed from a direction of the coil axis. The radii of curvature of the first and second portions are both smaller than the radii of curvature of the third and fourth portions. When viewed from the direction of the coil axis, a distance between the first portion and the third surface is larger than a distance between the third portion and the fifth surface.

A coil component according to one or more embodiments includes a base body having first to sixth surfaces, and a coil conductor including a winding portion that extends around a coil axis intersecting the first and second surfaces. The winding portion includes first, second, third, and fourth portions facing the third, fourth, fifth, and sixth surfaces, respectively when viewed from a direction of the coil axis. The radii of curvature of the first and second portions are both smaller than the radii of curvature of the third and fourth portions. When viewed from the direction of the coil axis, a distance between the first portion and the third surface is larger than a distance between the third portion and the fifth surface.