Micro coaxial cable for high bending performance

• US 8,242,358 B2
• Filed: 11/08/2007
• Issued: 08/14/2012
• Est. Priority Date: 02/07/2007
• Status: Active Grant

• Current Assignee: Hitachi Metals (Thailand) Ltd.
• Original Assignee: LS Cable And System Limited (LS Cable)
• Inventors: Seo, Il-Gun, Park, Jung-Won, Park, Chan-Yong, Nam, Gi-Joon, Kim, In-Ha, Lee, Gun-Joo, Kim, June-Sun
• Primary Examiner(s): MAYO III, WILLIAM H
• Application Number:
  US12/526,023
• Publication Number:
  US 20100314152A1
• Time in Patent Office: 1,741 Days
• Field of Search: 174/36, 174/126.1, 174/126.2, 174/128.1, 174/102.R, 174/106.R, 174/108, 148/433, 148/436, 148/432
• US Class Current: 174/28
• CPC Class Codes: H01B 11/1821 Co-axial cables with at least one wire-wound conductor

Abstract

A micro coaxial cable with a high bending performance, having an inner conductor; an insulating layer configured to surround the inner conductor, and a helical winding conductor configured to surround the insulating layer and having an elongation of 1.5 to 4% and a pitch of 3.0 to 5.0 mm.

Claims

1. A micro coaxial cable comprising:

an inner conductor;

an insulating layer configured to surround the inner conductor; and

a non-annealed helical winding conductor configured to surround the insulating layer and,

wherein the non-annealed helical winding conductor has an elongation of 1.5 to 4% and a pitch of 3.0 to 5.0 mm.

2. The micro coaxial cable according to claim 1, further comprising:

a protective coating layer configured to surround the helical winding conductor.

3. The micro coaxial cable according to claim 1, wherein the helical winding conductor contains tin of 0.3 to 0.6%.

4. The micro coaxial cable according to claim 2, wherein the helical winding conductor contains tin of 0.3 to 0.6%.

5. The micro coaxial cable according to claim 1, wherein the helical winding conductor contains silver of 0.6 to 2.0%.

6. The micro coaxial cable according to claim 2, wherein the helical winding conductor contains silver of 0.6 to 2.0%.

7. The micro coaxial cable according to claim 1, wherein the helical winding conductor includes a plurality of metal lines wound in the form of a helical twist.

8. The micro coaxial cable according to claim 2, wherein the helical winding conductor includes a plurality of metal lines wound in the form of a helical twist.

9. The micro coaxial cable according to claim 1, wherein the inner conductor includes a plurality of twisted metal lines.

10. The micro coaxial cable according to claim 2, wherein the inner conductor includes a plurality of twisted metal lines.

11. The micro coaxial cable according to claim 1, further comprising:

an over-foaming barrier layer formed between the insulating layer and the helical winding conductor and configured to prevent over-foaming of the insulating layer, so that foam cells are formed uniformly in the insulating layer.

12. The micro coaxial cable according to claim 2, further comprising:

an over-foaming barrier layer formed between the insulating layer and the helical winding conductor and configured to prevent over-foaming of the insulating layer, so that foam cells are formed uniformly in the insulating layer.