A cord switch includes a hollow insulation having a restoring force, a plurality of inner electrode wires provided along an inner surface of the hollow insulation, and an outer electrode provided on an outer surface of the hollow insulation. The outer electrode includes a plurality of outer electrode wires wounded on the outer surface of the hollow insulation, the outer electrode wires each including a copper wire and a plated layer formed on a surface of the copper wire, and the plated layer includes a transition metal except cobalt, manganese, copper, iron and vanadium, or a typical metal.
1. A cord switch, comprising:
a hollow insulation comprising a polymer to be subjected to metal ion damage and having a restoring force;
a plurality of inner electrode wires provided along an inner surface of the hollow insulation, each of the inner electrode wires comprising a core wire including a conductor and a conductive resin coated on an outer surface of the core wire; and
an outer electrode provided on an outer surface of the hollow insulation,
wherein the outer electrode comprises a plurality of outer electrode wires wound on the outer surface of the hollow insulation, the outer electrode wires each comprising a copper wire and a plated layer formed on a surface of the copper wire,
wherein the plated layer comprises a first plated layer formed on an outer surface of each of the plurality of outer electrode wires and a second plated layer formed on an outer surface of the first plated layer,
wherein the first plated layer comprises a metal selected from a group consisting of aluminum, zinc, and a transition metal except cobalt, manganese, copper, iron and vanadium, wherein the metal has an interdiffusion coefficient with respect to copper that is smaller than an interdiffusion coefficient of tin with respect to copper,
wherein the second plated layer comprises a metal selected from a group consisting of aluminum, tin, zinc, and a transition metal except cobalt, manganese, copper, iron and vanadium, wherein the second plated layer exhibits metal ion damage less than the first plated layer.
2. The cord switch according to claim 1 , wherein the polymer comprises a rubber or a plastic.
3. The cord switch according to claim 1 , wherein the polymer comprises a restoring rubber or a restoring plastic.
4. The cord switch according to claim 1 , wherein the first plated layer comprises nickel and the second plated layer comprises tin, aluminum, or silver.
5. The cord switch according to claim 1 , wherein the metal of the first plated layer excludes nickel.
6. The cord switch according to claim 1 , wherein the metal of the second plated layer excludes silver.
7. The cord switch according to claim 5 , wherein the metal of the second plated layer excludes silver.
8. A cord switch, comprising:
a hollow insulation having a restoring force;
a plurality of inner electrode wires provided along an inner surface of the hollow insulation; and
an outer electrode provided on an outer surface of the hollow insulation,
wherein the outer electrode comprises a plurality of outer electrode wires wound on the outer surface of the hollow insulation, the outer electrode wires each comprising a copper wire and a plated layer formed on a surface of the copper wire,
wherein the plated layer comprises a first plated layer formed on an outer surface of each of the plurality of outer electrode wires and a second plated layer formed on an outer surface of the first plated layer,
wherein the first plated layer comprises a metal selected from a group consisting of a main group metal except tin and a transition metal except cobalt, manganese, copper, iron and vanadium, wherein the metal has an interdiffusion coefficient with respect to copper that is smaller than an interdiffusion coefficient of tin with respect to copper,
wherein the second plated layer comprises a metal selected from a group consisting of a main group metal and a transition metal except cobalt, manganese, copper, iron and vanadium, wherein the second plated layer exhibits metal ion damage less than the first plated layer.
9. The cord switch according to claim 8 , wherein the first plated layer comprises nickel and the second plated layer comprises tin, aluminum, or silver.
10. The cord switch according to claim 8 , wherein the metal of the first plated layer excludes nickel.
11. The cord switch according to claim 8 , wherein the metal of the second plated layer excludes silver.
12. The cord switch according to claim 10 , wherein the metal of the second plated layer excludes silver.