US10249412B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10249412-B2 |
| Application number | US-201715730383-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 11, 2017 |
| Priority date | Nov 25, 2016 |
| Publication date | Apr 2, 2019 |
| Grant date | Apr 2, 2019 |
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A composite cable includes a twisted wire formed by twisting a plurality of signal lines, and a plurality of power lines that are arranged on a circumference of a circle concentric with the twisted wire so as to surround an outer circumference of the twisted wire and are twisted around the twisted wire.
Opening claim text (preview).
What is claimed is: 1. A composite cable, comprising: a twisted wire formed by twisting a plurality of signal lines; and a plurality of power lines that are arranged on a circumference of a circle concentric with the twisted wire so as to surround an outer circumference of the twisted wire and are twisted around the twisted wire, wherein each signal line of the signal lines comprises a conductor, an insulation layer provided around the conductor, a shield provided around the insulation layer, and a jacket provided around the shield, wherein each power line of the power lines comprises a conductor and an enamel layer comprising one or more of enamels selected from the group consisting of polyimide (PI), polyamide-imide (PAI), polyesterimide (PEsI), polyetherimide (PEI), polyimide hydantoin-modified polyester, polyamide (PA), formal, polyurethane, polyester (PEst), polyvinyl formal, epoxy and polyhydantoin, wherein said each power line has a smaller diameter than said each signal line, and wherein a ratio of a twist pitch of the power lines to a pitch diameter of a layer formed of the power lines is smaller than a ratio of a twist Ditch of the signal lines to a pitch diameter of a layer formed of the signal lines. 2. The composite cable according to claim 1 , wherein said each power line comprises an enameled wire, and said each signal line comprises a coaxial line. 3. The composite cable according to claim 2 , wherein a twist direction of the signal lines is a same as a twist direction of the power lines. 4. The composite cable according to claim 2 , wherein a twist direction of the signal lines is different from a twist direction of the power lines. 5. The composite cable according to claim 1 , wherein a twist direction of the signal lines is a same as a twist direction of the power lines. 6. The composite cable according to claim 1 , wherein a twist direction of the signal lines is different from a twist direction of the power lines. 7. The composite cable according to claim 1 , wherein said each power line is in a direct contact with adjacent power lines of said power lines. 8. The composite cable according to claim 1 , wherein the power lines are in a direct contact with the signal lines. 9. The composite cable according to claim 1 , wherein the jacket of said each signal line is in a direct contact with the power lines. 10. The composite cable according to claim 1 , wherein the jacket of said each signal line abuts the enamel layer of the power lines.
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