CN219418579U

CN219418579U - High-speed coaxial signal transmission cable

Info

Publication number: CN219418579U
Application number: CN202222534030.3U
Authority: CN
Inventors: 郑杰; 夏新春; 郑磊
Original assignee: Jiangxi Deningke Electronic Technology Co ltd
Current assignee: Jiangxi Deningke Electronic Technology Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-07-25
Anticipated expiration: 2032-09-23

Abstract

The utility model discloses a high-speed coaxial signal transmission cable, which belongs to the technical field of cables and belongs to the technical field of starch production, and the high-speed coaxial signal transmission cable comprises a cable sheath, wherein a tinfoil shielding layer is connected to the inner side wall of the cable sheath, a plurality of coaxial wires and a plurality of auxiliary signal wires are connected to the inner side wall of the tinfoil shielding layer, the coaxial wires comprise a central conductor, the outer surface of the central conductor is connected with an insulating layer, and the outer surface of the insulating layer is connected with a metal composite belt; the utility model can improve the impedance stability of the cable and is suitable for various high-speed signal transmission cables by arranging the cable sheath, the tinfoil shielding layer, the coaxial line, the central conductor, the insulating layer, the metal composite belt, the PET film, the hot melt adhesive and other structures.

Description

High-speed coaxial signal transmission cable

Technical Field

The utility model relates to the technical field of cables, in particular to a high-speed coaxial signal transmission cable.

Background

The general high-speed coaxial cable basic structure in the market at present is that a conductor outer layer is coated with an insulating layer, a layer of metal wire is wound on the surface of the insulating layer, a layer of metal composite belt is coated on the surface of the metal wire by using a winding process, the structure is difficult to achieve a hundred-percent shielding rate due to the fact that the metal wire is wound, a gap exists between the metal wires, so that characteristic impedance is difficult to achieve stability, the cost of materials used in the structure is high, and production efficiency is low.

For this purpose we propose a high-speed coaxial signal transmission cable.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a high-speed coaxial signal transmission cable, which overcomes the defects of the prior art and aims at solving the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the high-speed coaxial signal transmission cable comprises a cable sheath, wherein a tinfoil shielding layer is connected to the inner side wall of the cable sheath, and a plurality of coaxial wires and a plurality of auxiliary signal wires are connected to the inner side wall of the tinfoil shielding layer;

the coaxial line comprises a central conductor, an insulating layer is connected to the outer surface of the central conductor, and a metal composite belt is connected to the outer surface of the insulating layer.

As a preferred embodiment of the present utility model, the coaxial line is specifically a root. The compactness of the cable internal connection is improved.

As a preferable technical scheme of the utility model, the insulating layer is specifically any one of insulating materials with low dielectric constants such as polyethylene, foamed polyethylene and teflon, and the insulating material can effectively reduce the attenuation of high-frequency signals.

As a preferable technical scheme of the utility model, the metal composite belt is a copper metal film, the outer surface of the metal film is adhered with a PET film, and the outer surface of the PET film is adhered with a hot melt adhesive, so that the metal composite belt is conveniently adhered on the wire core.

As a preferable technical scheme of the utility model, the surface of the metal composite belt is a smooth curved surface, so that the friction force of the surface of the metal composite belt is reduced.

The utility model has the beneficial effects that:

the utility model can improve the impedance stability of the cable and is suitable for various high-speed signal transmission cables by arranging the cable sheath, the tinfoil shielding layer, the coaxial line, the central conductor, the insulating layer, the metal composite belt, the PET film, the hot melt adhesive and other structures.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

fig. 2 is a schematic view of a coaxial line structure in the present utility model;

fig. 3 is a schematic view of a metal composite belt structure according to the present utility model.

In the figure: 1. a cable sheath; 2. a tinfoil shielding layer; 3. a coaxial line; 4. a center conductor; 5. an insulating layer; 6. a metal composite tape; 7. a PET film; 8. and (5) hot melt adhesive.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-3, a high-speed coaxial signal transmission cable comprises a cable sheath 1, wherein a tinfoil shielding layer 2 is connected to the inner side wall of the cable sheath 1, a plurality of coaxial wires 3 and a plurality of auxiliary signal wires are connected to the inner side wall of the tinfoil shielding layer 2, the coaxial wires 3 comprise a central conductor 4, an insulating layer 5 is connected to the outer surface of the central conductor 4, and a metal composite belt 6 is connected to the outer surface of the insulating layer 5. The compactness of cable internal connection can be effectively improved to a plurality of coaxial lines 3 and a plurality of auxiliary signal lines to, the insulating layer on the coaxial lines 3 can reduce the attenuation of high frequency signal effectively, and metal composite tape 3 can closely wrap and adhere on the surface of insulating sinle silk to, form a regular metal ring, thereby, improve the impedance stability of cable, and be applicable to all kinds of high-speed signal transmission cables.

In the present embodiment, the coaxial lines 3 are specifically 8. The compactness of the cable internal connection is improved.

In this embodiment, the insulating layer 5 is specifically any one of insulating materials with low dielectric constants, such as polyethylene, foamed polyethylene, and teflon, and the insulating material can effectively reduce attenuation of high-frequency signals.

In this embodiment, the metal composite belt 6 is a metal film made of copper, the outer surface of the metal film is adhered with a PET film 7, and the outer surface of the PET film 7 is adhered with a hot melt adhesive 8, so that the metal composite belt 6 is conveniently adhered on the wire core.

In this embodiment, the surface of the metal composite belt 6 is a smooth curved surface, so that the friction force of the surface of the metal composite belt 6 is reduced.

Working principle: the compactness of cable internal connection can be effectively improved to a plurality of coaxial lines 3 and a plurality of auxiliary signal lines to, the insulating layer on the coaxial line 3 can reduce the attenuation of high frequency signal effectively, and metal composite tape 3 can closely wrap up and adhere on insulating wire core's surface, thereby, form a regular metal ring, insulating wire core is prior art, just do not explain in this application, and specific structure references prior art, can improve the impedance stability of cable through above-mentioned structure, and is applicable to all kinds of high-speed signal transmission cables.

Finally, it should be noted that: in the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The high-speed coaxial signal transmission cable comprises a cable sheath (1), and is characterized in that a tinfoil shielding layer (2) is connected to the inner side wall of the cable sheath (1), and a plurality of coaxial wires (3) and a plurality of auxiliary signal wires are connected to the inner side wall of the tinfoil shielding layer (2);

the coaxial line (3) comprises a central conductor (4), an insulating layer (5) is connected to the outer surface of the central conductor (4), and a metal composite belt (6) is connected to the outer surface of the insulating layer (5).

2. A high-speed coaxial signal transmission cable according to claim 1, characterized in that the coaxial lines (3) are in particular 8.

3. A high-speed coaxial signal transmission cable according to claim 1, characterized in that the insulating layer (5) is in particular any one of polyethylene, foamed polyethylene, teflon insulating material.

4. The high-speed coaxial signal transmission cable according to claim 1, wherein the metal composite tape (6) is a copper metal film, a PET film (7) is adhered to the outer surface of the metal film, and a hot melt adhesive (8) is adhered to the outer surface of the PET film (7).

5. A high-speed coaxial signal transmission cable according to claim 4, wherein the surface of the metal composite tape (6) is a smooth curved surface.