A high-definition digital coaxial cable

Abstract

The utility model discloses a kind of high-definition digital coaxial lines, from inside to outside sequentially include: wire core conductor, insulating layer, composite layer and outer sheath;The insulating layer is wrapped in the surface of wire core conductor, the composite layer is wrapped in the surface of insulating layer, the outer sheath is wrapped in the surface of composite layer;The composite layer includes the shielding layer of inner layer and the tensile layer of outer layer;The outer surface of the outer sheath integrally formed has spiral convex rib, auxiliary hole is set up on the convex rib.The utility model aims at overcoming the defect of the present and provides a kind of high-definition digital coaxial line, by adopting shielding layer of aluminium foil belt spiral winding, realized the continuous full coverage of insulating layer, effectively isolated external electromagnetic interference, guaranteed the purity and stability of high-definition digital signal transmission, and shielding layer outer layer's woven mesh tensile layer greatly enhanced the overall tensile strength of cable, prevent being pulled apart in wiring or use.

Description

Technical Field

[0001] This utility model relates to a high-definition digital coaxial cable. Background Technology

[0002] Traditional shielding layers, such as single-strand braided wire mesh, inevitably have tiny gaps between their meshes. These gaps are insufficient to effectively block the intrusion of high-frequency electromagnetic waves and radio waves. Interference signals from the complex external electromagnetic environment can couple onto the internal signal conductors through these gaps, contaminating the transmitted digital signals. Furthermore, the mechanical strength of traditional coaxial cables relies primarily on the insulation layer and outer sheath, and these polymer materials have limited tensile strength. Under significant tensile force, the internal conductors may be stretched, thinned, or even broken, leading to a complete interruption of signal transmission.

[0003] Therefore, a high-definition digital coaxial cable is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to overcome the existing defects and provide a high-definition digital coaxial cable that can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-definition digital coaxial cable, comprising, from the inside out: a conductor core, an insulation layer, a composite layer, and an outer sheath; the insulation layer wraps around the surface of the conductor core, the composite layer wraps around the surface of the insulation layer, and the outer sheath wraps around the surface of the composite layer; the composite layer includes an inner shielding layer and an outer tensile layer; the outer surface of the outer sheath is integrally formed with a spiral ridge, and auxiliary holes are provided on the ridge.

[0006] Preferably, the shielding layer is an aluminum foil strip, and the shielding layer is wrapped around the surface of the insulating layer in a spiral winding manner.

[0007] Preferably, the tensile layer is a woven mesh, and the tensile layer is sleeved on the outer surface of the shielding layer.

[0008] Preferably, the material of the woven mesh is a metal alloy wire.

[0009] Preferably, the conductor core is made of multiple strands of high-purity oxygen-free copper wire twisted together.

[0010] Preferably, the insulating layer is made of high-foaming polyethylene material.

[0011] Preferably, the auxiliary holes are evenly distributed at intervals along the extension direction of the convex ridge.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This high-definition digital coaxial cable, by using a shielding layer composed of spirally wound aluminum foil strips, achieves continuous full coverage of the insulation layer, effectively isolates external electromagnetic interference, and ensures the purity and stability of high-definition digital signal transmission. Furthermore, the braided mesh tensile layer on the outer layer of the shielding layer greatly enhances the overall tensile strength of the cable, preventing it from being pulled apart during wiring or use. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This is an exploded view of the overall structure of this utility model; Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle.

[0014] In the diagram: 1. Core conductor; 2. Insulation layer; 3. Composite layer; 31. Shielding layer; 32. Tensile layer; 4. Outer sheath; 41. Raised ridge; 42. Auxiliary hole. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figure 1-4 As shown, a high-definition digital coaxial cable includes, from the inside out: a conductor core 1, an insulation layer 2, a composite layer 3, and an outer sheath 4; the insulation layer 2 wraps around the surface of the conductor core 1, the composite layer 3 wraps around the surface of the insulation layer 2, and the outer sheath 4 wraps around the surface of the composite layer 3; the composite layer 3 includes an inner shielding layer 31 and an outer tensile layer 32; the outer surface of the outer sheath 4 is integrally formed with a spiral ridge 41, and auxiliary holes 42 are provided on the ridge 41.

[0017] Specifically, the shielding layer 31 is an aluminum foil strip, which is wrapped around the surface of the insulating layer 2 in a spiral winding manner. The aluminum foil strip can form a gapless shielding layer 31 by overlapping and winding, which completely wraps the internal conductor core, effectively blocking the interference of external electromagnetic waves and preventing the internal signal from radiating outward. The tensile layer 32 is a braided mesh, which is sleeved on the outer surface of the shielding layer 31. The material of the braided mesh is metal alloy wire. The metal braided mesh itself is also a highly efficient shielding layer, which can be used to shield low-frequency magnetic field interference. Together with the inner aluminum foil layer, it constitutes a double shielding effect, realizing comprehensive protection against interference across the entire frequency band.

[0018] Specifically, conductor 1 is made of multiple strands of high-purity oxygen-free copper wire. Compared to a single solid copper wire, the multiple strands greatly increase the cable's flexibility and bending fatigue life, making the cable easier to lay and less prone to internal breakage due to repeated bending. Insulation layer 2 is made of high-foamed polyethylene material. Inert gas is injected into the polyethylene to form uniform micropores, which greatly reduces the dielectric constant of the material. The lower the dielectric constant, the faster the signal propagation speed and the lower the loss.

[0019] Specifically, the auxiliary holes 42 are evenly distributed at intervals along the extension direction of the protruding ridge 41.

[0020] This high-definition digital coaxial cable comprises, from the inside out, a conductor core 1, an insulation layer 2, a composite layer 3, and an outer sheath 4. The insulation layer 2 wraps around the surface of the conductor core 1, the composite layer 3 wraps around the surface of the insulation layer 2, and the outer sheath 4 wraps around the surface of the composite layer 3. The inner layer of the composite layer 3 is a shielding layer 31, and the outer layer is a tensile layer 32. The shielding layer 31 is made of aluminum foil tape. The shielding layer 31 wraps around the insulation layer 2 in a spiral winding manner, and the tensile layer 32 is a woven mesh wrapped around the insulation layer 2 that wraps around the shielding layer 31.

[0021] The outer surface of the ridge 41 is integrally formed with a spiral ridge 41, and auxiliary holes 42 are also opened on the ridge 41. The ridge 41 is equivalent to adding a "reinforcing rib" to the cable. When the cable is subjected to external pressure or frequent bending at specific points, the ridge 41 structure can effectively disperse and resist stress, protecting the internal core conductor and shielding layer 31 from deformation and damage. At the same time, the auxiliary holes 42 can serve as natural threading points for cable clips, cable ties, or cable bundles. Users can directly pass the cable ties through the auxiliary holes 42 to easily fix the cable to the cabinet, cable tray, or wall without the need to use adhesive cable clips or wrapping fixation, which may be not secure or damage the cable sheath.

[0022] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-definition digital coaxial cable, characterized in that, From the inside out, it includes: a conductor core (1), an insulation layer (2), a composite layer (3), and an outer sheath (4); the insulation layer (2) wraps around the surface of the conductor core (1), the composite layer (3) wraps around the surface of the insulation layer (2), and the outer sheath (4) wraps around the surface of the composite layer (3); the composite layer (3) includes an inner shielding layer (31) and an outer tensile layer (32); the outer surface of the outer sheath (4) is integrally formed with a spiral ridge (41), and an auxiliary hole (42) is provided on the ridge (41).

2. The high-definition digital coaxial cable according to claim 1, characterized in that, The shielding layer (31) is an aluminum foil strip, and the shielding layer (31) is wrapped around the surface of the insulating layer (2) in a spiral winding manner.

3. The high-definition digital coaxial cable according to claim 1, characterized in that, The tensile layer (32) is a woven mesh, and the tensile layer (32) is sleeved on the outer surface of the shielding layer (31).

4. A high-definition digital coaxial cable according to claim 3, characterized in that, The material of the woven mesh is metal alloy wire.

5. A high-definition digital coaxial cable according to claim 1, characterized in that, The conductor core (1) is made of multiple strands of high-purity oxygen-free copper wire twisted together.

6. A high-definition digital coaxial cable according to claim 1, characterized in that, The insulating layer (2) is made of high-foaming polyethylene material.

7. A high-definition digital coaxial cable according to claim 1, characterized in that, The auxiliary holes (42) are evenly distributed at intervals along the extension direction of the protrusion (41).

Images