Eight-core coaxial shielding cable

Abstract

The utility model discloses an eight-core coaxial shielding cable, comprising eight coaxial signal lines, a USB2.0 signal line group, a control line group and two power lines, each coaxial signal line is composed of a central conductor, the central conductor is coated with an inner insulating layer, the inner insulating layer is coated with an inner shielding layer, the inner shielding layer is coated with an outer shielding layer, and the outer shielding layer is coated with an outer shielding layer. An outer shielding layer is coated on the inner insulating layer, an outer insulating layer is coated on the outer shielding layer, the inner insulating layer is made of polypropylene, the inner shielding layer is made of conductive TPE, and the eight coaxial signal lines, the USB2.0 signal line group, the control line group and the two power lines are coated in an outer sleeve. Compared with the prior art, the cable provided by the utility model can meet the USB 4.0 transmission requirement, is low in manufacturing cost and light in weight, and can be quickly processed.

Description

Technical Field

[0001] The utility model belongs to a communication cable, in particular to an eight-core coaxial shielded cable. Background Art

[0002] USB4 is a high-speed data transfer interface standard and one of the latest versions of the USB standard. Designed to deliver higher data transfer speeds and increased functionality to meet the demands of modern computing and connected devices, USB4 typically uses a USB Type-C connector, supports the USB protocol, and is fully backward compatible with Thunderbolt 3, USB 3.2, USB 3.1, and USB 2.0. It can achieve theoretical speeds of up to 40Gbps. To meet these transmission requirements, USB4 typically utilizes a coaxial cable.

[0003] The structure of existing coaxial cables has an inner insulation layer of extruded perfluoroethylene propylene copolymer or fluoroethylene-perfluoroalkoxy vinyl ether copolymer, and an inner shielding layer woven with metal wires such as silver-plated copper wire, tinned copper wire or bare copper wire. This cable structure has some problems: high material cost; large overall weight of the finished cable; many steps and low processing efficiency. Utility Model Content

[0004] The purpose of the utility model is to overcome the problems of high production cost and low production efficiency of existing coaxial cables, and to provide an eight-core coaxial shielded cable with low cost, low weight and high processing efficiency.

[0005] The utility model solves the technical problem by adopting the following technical solution: an eight-core coaxial shielded cable, including eight coaxial signal lines, a USB2.0 signal line group, a control line group and two power lines. The coaxial signal line is composed of a central conductor, the central conductor is covered with an inner insulating layer, the inner insulating layer is covered with an inner shielding layer, the inner shielding layer is covered with an outer shielding layer, and the outer shielding layer is covered with an outer insulating layer. The inner insulating layer is polypropylene, and the inner shielding layer is conductive TPE. The eight coaxial signal lines, the USB2.0 signal line group, the control line group and the two power lines are covered in an outer jacket.

[0006] Optionally, the inner insulating layer and the outer shielding layer are coated layer by layer by extrusion molding.

[0007] Optionally, the central conductor is made of tinned copper or copper, the outer shielding layer is a copper film or copper foil, the outer shielding layer is conductive with the inner shielding layer, and the outer insulating layer is a polyester tape.

[0008] Optionally, the outer sleeve has a circular or flat cross-section.

[0009] Optionally, eight coaxial signal lines, a USB2.0 signal line group, a control line group and two power lines are horizontally arranged in sequence inside the flat outer shell.

[0010] The usage and principle of this utility model are as follows: polypropylene is used in the inner insulation layer, and conductive TPE is used in the inner shielding layer, which are coated layer by layer through extrusion molding. Then, eight coaxial signal lines, a USB2.0 signal line group, a control line group and two power lines are integrated to form a cable, so that the cable can meet the USB4.0 transmission requirements, and the overall production cost of the cable is low, the weight is light, and it can be quickly processed.

[0011] Compared with the existing technology, the beneficial effects of the present invention are as follows: the cable of the present invention can meet the transmission requirements of USB4.0, has low production cost, light weight, and can be processed quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the cross-sectional structure of the coaxial signal line of the present utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0014] The components in the accompanying drawings are marked as follows: coaxial signal line 1, USB2.0 signal line group 2, control line group 3, power line 4, center conductor 5, insulation layer 6, inner shielding layer 7, outer shielding layer 8, outer insulation layer 9, and outer jacket 10. DETAILED DESCRIPTION

[0015] Example 1, below combined Figure 1-2 The utility model is further described. The eight-core coaxial shielded cable includes eight coaxial signal lines 1, a USB2.0 signal line group 2, a control line group 3 and two power lines 4. The coaxial signal line is composed of a central conductor 5, which is made of tinned copper or copper. The central conductor is covered with an inner insulating layer 6, the inner insulating layer is covered with an inner shielding layer 7, the inner shielding layer is covered with an outer shielding layer 8, and the outer shielding layer is covered with an outer insulating layer 9. The inner insulating layer is polypropylene, the inner shielding layer is conductive TPE, and the conductive TP is coated. E, namely conductive thermoplastic elastomer, is a thermoplastic elastomer with conductive fillers added to the TPE base material. These conductive fillers give TPE conductive properties. Polypropylene and conductive TPE are coated layer by layer through extrusion molding. The outer shielding layer is a copper-plated film or copper foil, which is wrapped with copper film or copper foil. The outer shielding layer is conductive with the inner shielding layer. The outer insulating layer is a polyester tape, which is wrapped with polyester tape. Eight coaxial signal lines, a USB2.0 signal line group, a control line group and two power lines are coated in a jacket 10.

[0016] Optionally, the outer sleeve has a circular or flat cross-section.

[0017] Optionally, eight coaxial signal lines, a USB2.0 signal line group, a control line group and two power lines are horizontally arranged in sequence inside the flat outer shell.

[0018] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.

Claims

1. An eight-core coaxial shielded cable, comprising eight coaxial signal lines (1), a USB2.0 signal line group (2), a control line group (3) and two power lines (4), characterized in that: The coaxial signal line is composed of a central conductor (5), the central conductor is coated with an inner insulating layer (6), the inner insulating layer is coated with an inner shielding layer (7), the inner shielding layer is coated with an outer shielding layer (8), and the outer shielding layer is coated with an outer insulating layer (9), the inner insulating layer is polypropylene, and the inner shielding layer is conductive TPE. Eight coaxial signal lines, a USB2.0 signal line group, a control line group and two power lines are coated in an outer jacket (10).

2. The eight-core coaxial shielded cable according to claim 1, characterized in that: The inner insulating layer and the outer shielding layer are coated layer by layer by extrusion molding.

3. The eight-core coaxial shielded cable according to claim 1, characterized in that: The center conductor is made of tinned copper or copper, the outer shielding layer is copper film or copper foil, the outer shielding layer is conductive with the inner shielding layer, and the outer insulating layer is polyester tape.

4. The eight-core coaxial shielded cable according to claim 1, characterized in that: The cross section of the jacket is round or flat.

5. The eight-core coaxial shielded cable according to claim 4, characterized in that: Inside the flat jacket, eight coaxial signal cables, a USB2.0 signal cable group, a control cable group and two power cables are arranged horizontally in sequence.

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