Audio/Video cable

Patent metadata

Field	Value
Publication number	US-9293231-B2
Application number	US-201414328958-A
Country	US
Kind code	B2
Filing date	Jul 11, 2014
Priority date	Oct 20, 2010
Publication date	Mar 22, 2016
Grant date	Mar 22, 2016

Abstract

An audio/video cable includes an insulated layer including a copper conductor for transmitting audio/video signals and an insulation layer formed on a periphery thereof. The copper conductor includes a soft dilute copper alloy material containing pure copper, Ti as an additive element and an inevitable impurity as a balance. The soft dilute copper alloy material includes a recrystallized structure having a grain size distribution such that crystal grains in a surface layer are smaller than internal crystal grains. The soft dilute copper alloy material includes not less than 2 and not more than 12 mass ppm of sulfur, more than 2 mass ppm but not more than 30 mass ppm of oxygen, and not less than 4 and not more than 55 mass ppm of Ti.

First claim

What is claimed is:

1. An audio/video cable, comprising:
an insulated layer comprising a conductor for transmitting audio/video signals and an insulation layer formed on a periphery thereof,
wherein the conductor comprises a soft dilute copper alloy material containing pure copper, Ti as an additive element and an inevitable impurity as a balance,
wherein the soft dilute copper alloy material comprises a recrystallized structure having a grain size distribution such that crystal grains in a surface layer are smaller than internal crystal grains,
wherein the soft dilute copper alloy material includes not less than 2 and not more than 12 mass ppm of sulfur, more than 2 mass ppm but not more than 30 mass ppm of oxygen, and not less than 4 and not more than 55 mass ppm of Ti, and
wherein the Ti includes TiO of not more than 200 nm in size, TiO 2 of not more than 1000 nm in size, TiS of not more than 200 nm in size, or a compound in a form of Ti—O—S of not more than 300 nm in size.

2. The audio/video cable according to claim 1 , wherein the surface layer comprises a crystal structure such that an average crystal grain size from a surface of the surface layer up to a depth of 50 μm toward inside of the soft dilute copper alloy material is not more than 20 μm.

3. The audio/video cable according to claim 1 , wherein an electrical conductivity of the soft dilute copper alloy material is not lower than 102% IACS (International Annealed Copper Standard).

4. The audio/video cable according to claim 3 , wherein the soft dilute copper alloy material includes not less than 3 and not more than 12 mass ppm of sulfur, and not less than 4 and not more than 25 mass ppm of Ti.

5. The audio/video cable according to claim 3 , wherein the soft dilute copper alloy material has a softening temperature of not more than 148° C.

6. The audio/video cable according to claim 5 , wherein the soft dilute copper alloy material includes a dispersed particle size that is not more than 500 nm in not less than 90% of particles.

7. The audio/video cable according to claim 1 , wherein the soft dilute copper alloy material includes not less than 3 and not more than 12 mass ppm of sulfur, and not less than 4 and not more than 25 mass ppm of Ti.

8. An audio/video cable, comprising:
a plurality of insulated wires each comprising a copper conductor for transmitting audio/video signals and an insulation layer formed on a periphery thereof; and
a jacket covering a periphery thereof,
wherein the copper conductor comprises a soft dilute copper alloy material containing pure copper, Ti as an additive element and an inevitable impurity as a balance,
wherein the soft dilute copper alloy material comprises a recrystallized structure having a grain size distribution such that crystal grains in a surface layer are smaller than internal crystal grains,
wherein the soft dilute copper alloy material includes not less than 2 and not more than 12 mass ppm of sulfur, more than 2 mass ppm but not more than 30 mass ppm of oxygen, and not less than 4 and not more than 55 mass ppm of Ti, and
wherein the Ti includes TiO of not more than 200 nm in size, TiO 2 of not more than 1000 nm in size, TiS of not more than 200 nm in size, or a compound in a form of Ti—O—S of not more than 300 nm in size.

9. The audio/video cable according to claim 8 , wherein the surface layer comprises a crystal structure such that an average crystal grain size from a surface of the surface layer up to a depth of 50 μm toward inside of the soft dilute copper alloy material is not more than 20 μm.

10. The audio/video cable according to claim 8 , wherein an electrical conductivity of the soft dilute copper alloy material is not lower than 102% IACS (International Annealed Copper Standard).

11. The audio/video cable according to claim 10 , wherein the soft dilute copper alloy material includes not less than 3 and not more than 12 mass ppm of sulfur, and not less than 4 and not more than 25 mass ppm of Ti.

12. The audio/video cable according to claim 10 , wherein the soft dilute copper alloy material has a softening temperature of not more than 148° C.

13. The audio/video cable according to claim 10 , wherein the soft dilute copper alloy material includes a dispersed particle size that is not more than 500 nm in not less than 90% of particles.

14. The audio/video cable according to claim 8 , wherein the soft dilute copper alloy material includes not less than 3 and not more than 12 mass ppm of sulfur, and not less than 4 and not more than 25 mass ppm of Ti.

Assignees

• Hitachi Metals Ltd

Inventors

• Aoyama Seigi
• Sumi Toru
• Goto Masayoshi

Classifications

• H01B1/026 Primary

  Alloys based on copper · CPC title