USB 3.0伸缩线

Abstract

本实用新型公开了一种USB 3.0伸缩线，USB 3.0伸缩线包括扁平状的绝缘外被以及若干功能线，所有功能线在绝缘外被的横截面的长度方向上排成一排，功能线包括四根差分信号线、四根电源线、两根USB 2.0信号线以及一根CC线，其中两根USB 2.0信号线以及CC线呈三角形堆设形成一个线组，线组、各差分信号线和各电源线排成一排。所有功能线并非是一个一个依次排列成一排，而是将两根USB 2.0信号线和CC线呈三角形堆设形成一个线组后，与其他功能线排成一排，虽然线组占据的宽度会大一些，但是堆成一个线组进行排列，相当于减少了两个需要排列的功能线，进而可以有效减小一排功能线占据的宽度，从而在保证USB 3.0伸缩线的扁平程度的基础上，可以有效降低USB 3.0伸缩线的宽度。

Claims

1. A USB 3.0 retractable cord, characterized in that, The USB 3.0 retractable cable includes a flat insulating outer sheath and several functional lines disposed within the insulating outer sheath. All the functional lines are arranged in a row along the length of the cross-section of the insulating outer sheath. The functional lines include four differential signal lines, four power lines, two USB 2.0 signal lines, and one CC line. The two USB 2.0 signal lines and the CC line are stacked together in a triangle to form a line group. The line group, each differential signal line, and each power line are arranged in a row.

2. The USB 3.0 extension cable of claim 1, wherein, The cross-section of each of the aforementioned functional lines is circular.

3. The USB 3.0 extension cable of claim 2, wherein, The diameter of the USB 2.0 signal line is similar to that of the CC line, but smaller than the diameter of the differential signal line and the power line.

4. The USB 3.0 retractable cable according to claim 1, characterized in that, The USB 2.0 signal line and the CC line are each composed of a first core wire and a first insulating layer wrapped around the first core wire.

5. The USB 3.0 extension cable of claim 4, wherein, The first core wire is made of tin-plated copper composite Kevlar fiber, and the first insulation layer is made of fluorinated ethylene propylene copolymer.

6. The USB 3.0 extension cable of claim 1, wherein, The differential signal line includes a second core wire, a second insulation layer, a braided layer, and a third insulation layer. The second insulation layer wraps around the second core wire, the braided layer is disposed outside the second insulation layer, and the third insulation layer wraps around the braided layer.

7. The USB 3.0 extension cable of claim 6, wherein, The second core wire is made of tin-plated copper, and the second and third insulating layers are made of fluorinated ethylene propylene copolymer.

8. The USB 3.0 extension cable of claim 1, wherein, The power cord includes a third core wire and a fourth insulation layer that wraps around the third core wire. The third core wire is made of tin-plated copper composite Kevlar fiber and copper alloy, and the fourth insulation layer is made of thermoplastic polyester elastomer.

9. The USB 3.0 extension cable of claim 1, wherein, The four power lines are divided into two groups, each group of which includes two adjacent power lines. The two groups of power lines are located at the two outermost ends of a row of functional lines.

10. The USB 3.0 retractable cable according to claim 9, characterized in that, The wire group, each of the differential signal lines, and each of the power lines are arranged in a row in the following order: two power lines, four differential signal lines, the wire group, and two more power lines.

Images