Composite conductive structure and magnetic component
A composite conductive structure includes plural enameled wires and a copper foil. The enameled wires are immediately adjacent to each other and extend in the same direction. The copper foil surrounds the outside of the enameled wires at least once, and completely covers the entire outside of the enameled wires.
1 . A composite conductive structure, comprising:
a plurality of enameled wires immediately adjacent to each other and extending in a same direction, wherein the enameled wires have first ends and second ends, and an outside of the enameled wires defines a circumference;
a copper foil completely surrounding the enameled wires along the entire circumference at least once, and completely covering the entire outside of the enameled wires, wherein the copper foil has a first end and a second end;
a first conductive material covering the first end of the copper foil and the first ends of the enameled wires at a same side; and
a second conductive material covering the second end of the copper foil and the second ends of the enameled wires at another same side, wherein the first conductive material and the second conductive material are in electrical and direct contact with the copper foil and conductors of the enameled wires to form a unified conductive termination electrically integrating all the enameled wires and the copper foil, and portions of the copper foil not covered by the first conductive material and the second conductive material are exposed.
2 . The composite conductive structure of claim 1 , wherein the copper foil rolls around the enameled wires, and an included angle between a tangent direction of the copper foil rolling around the enameled wires and a lengthwise direction of the enameled wires is 90 degrees.
3 . The composite conductive structure of claim 2 , wherein a length of the copper foil is the same as a length of the enameled wires.
4 . The composite conductive structure of claim 3 , wherein a width of the copper foil is greater than or equal to the circumference.
5 . The composite conductive structure of claim 1 , wherein the copper foil wraps around the enameled wires, and an included angle between a tangent direction of the copper foil wrapping around the enameled wires and a lengthwise direction of the enameled wires is in a range from 30 degrees to 60 degrees.
6 . The composite conductive structure of claim 5 , wherein a length of the copper foil is greater than a length of the enameled wires.
7 . The composite conductive structure of claim 6 , wherein the copper foil has a plurality of overlapping regions, and the overlapping regions are located on the outside of the enameled wires and spaced from each other.
8 . The composite conductive structure of claim 7 , wherein a width of each of the overlapping regions is less than a width of the copper foil.
9 . The composite conductive structure of claim 1 , wherein a thickness of the copper foil is in a range from 0.0005 inches to 0.005 inches.
10 . The composite conductive structure of claim 1 , further comprising:
an adhesive located between the copper foil and the outside of the enameled wires.
11 . The composite conductive structure of claim 10 , wherein the adhesive is conductive glue.
12 . The composite conductive structure of claim 1 , wherein each of the first conductive material and the second conductive material is tin, and has a round outline.
13 . A magnetic component, comprising:
a core; and
a composite conductive structure wrapping around a portion of the core and comprising:
a plurality of enameled wires immediately adjacent to each other and extending in a same direction, wherein the enameled wires have first ends and second ends, and an outside of the enameled wires defines a circumference;
a copper foil completely surrounding the enameled wires along the entire circumference at least once, and completely covering the entire outside of the enameled wires, wherein the copper foil has a first end and a second end;
a first conductive material covering the first end of the copper foil and the first ends of the enameled wires at a same side; and
a second conductive material covering the second end of the copper foil and the second ends of the enameled wires at another same side, wherein the first conductive material and the second conductive material are in electrical and direct contact with the copper foil and conductors of the enameled wires to form a unified conductive termination electrically integrating all the enameled wires and the copper foil, and portions of the copper foil not covered by the first conductive material and the second conductive material are exposed.