Anti-interference communication cable

Abstract

The utility model relates to an anti-interference communication cable, which comprises an outer protection layer, a shielding layer I, a shielding layer II, a buffer layer, an inner sheath layer, a filling layer and a wire core, the filling layer is arranged between the inner sheath layer and the wire core, the inner sheath layer is respectively wrapped by the shielding layer I and the shielding layer II, and the buffer layer is arranged between the shielding layer I and the shielding layer II. A buffer layer is arranged between the shielding layer I and the shielding layer II, the shielding layer I is a copper braided wire sleeve, the copper braided wire sleeve is formed by crosswise braiding two groups of continuous copper wires, the shielding layer II is an aluminum foil sleeve layer, the aluminum foil sleeve layer is corrugated, and the corrugated structure can increase the surface area of the aluminum foil shielding layer, so that the surface area of the aluminum foil shielding layer is increased. According to the utility model, the contact area between the shielding layer and an external electromagnetic field is increased, so that the shielding effect is improved, the copper braided wires have good electromagnetic shielding performance, and the influence of external electromagnetic interference on internal signals of the cable can be effectively blocked; and the conductive performance of the copper braided wire is excellent, so that a continuous shielding layer can be formed, and a relatively high shielding effect is provided.

Description

Technical Field

[0001] The utility model relates to the field of communication cables, in particular to an anti-interference communication cable. Background Art

[0002] High-frequency communication cables are one of the important components of traditional base stations. Their interior is mainly made of Category 6A and above wire cores in a twisted pair manner. Anti-interference ability is a very important parameter during the use of high-frequency communication cables. Although general high-frequency communication cables are generally covered with a shielding layer on the outside to prevent external electromagnetic and signal interference with the communication of the internal wire cores, existing communication cables have a shielding layer design, but the shielding effect is not good. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an anti-interference communication cable.

[0004] The utility model provides an anti-interference communication cable adopting the following technical solutions:

[0005] An anti-interference communication cable includes an outer protective layer, a shielding layer 1, a shielding layer 2, a buffer layer, an inner sheath layer, a filling layer and a wire core. The filling layer is arranged between the inner sheath layer and the wire core. The outer side of the inner sheath layer wraps the shielding layer 1 and the shielding layer 2 respectively. A buffer layer is arranged between the shielding layer 1 and the shielding layer 2. The shielding layer 1 is arranged as a copper braided wire sleeve, and the copper braided wire sleeve is formed by cross-weaving two groups of continuous copper wires.

[0006] Optionally, the second shielding layer is configured as an aluminum foil sleeve layer, and the aluminum foil sleeve is configured as a corrugated type.

[0007] Optionally, the buffer layer is made of an elastic material, and the elastic material is in close contact with the corrugated surface of the inner wall of the second shielding layer.

[0008] Optionally, a moisture-proof layer is provided between the second shielding layer and the outer sheath layer, and the moisture-proof layer is made of polyurethane (PU).

[0009] Optionally, an inner lining layer is provided between the first shielding layer and the inner jacket layer, and the inner lining layer is made of nitrile rubber.

[0010] Optionally, three wire cores are provided, and an insulating layer is provided on the outside of the three wire cores.

[0011] Optionally, a support bar is further provided in the filling layer, and three surfaces of the support bar are configured as arc-shaped surfaces, and the insulation layers outside the three groups of cores are tightly against the arc-shaped surfaces of the support bar.

[0012] In summary, the present invention has at least one of the following beneficial technical effects:

[0013] 1. Copper braided wire has good electromagnetic shielding performance, which can effectively block the influence of external electromagnetic interference on the internal signal of the cable; and the copper braided wire has excellent conductivity and can form a continuous shielding layer, providing a higher shielding effect;

[0014] 2. The second shielding layer is set as an aluminum foil sleeve, and the aluminum foil sleeve is set to be corrugated. The corrugated structure can increase the surface area of the aluminum foil shielding layer, increase the contact area between the shielding layer and the external electromagnetic field, thereby improving the shielding effect. In addition, the corrugated aluminum foil shielding layer is more flexible than flat aluminum foil, which means it can better adapt to the bending and deformation of the cable, thereby reducing stress during installation and use.

[0015] 3. The buffer layer is made of elastic material, and the elastic material is in close contact with the corrugated surface of the inner wall of the shielding layer 2. The buffer layer can provide mechanical protection and help reduce the impact between the shielding layer 1 and the shielding layer 2.

[0016] 4. The three surfaces of the support bar are set as arc-shaped surfaces. The insulation layers outside the three groups of wire cores are tightly against the arc-shaped surfaces of the support bar. The arc-shaped surface structure of the support bar can provide uniform supporting force, keep the position of the wire cores stable, and help prevent mutual interference and damage between the wire cores. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of an anti-interference communication cable (omitting the moisture-proof layer, lining layer and buffer layer).

[0018] Figure 2 A schematic diagram of a schematic diagram of an interference-resistant communication cable.

[0019] Figure 3 It is a schematic diagram used to reflect the structure of the shielding layer.

[0020] Explanation of the accompanying symbols: 1. Outer protective layer; 2. Shielding layer 1; 3. Shielding layer 2; 4. Buffer layer; 5. Inner sheath layer; 6. Filling layer; 7. Wire core; 8. Moisture-proof layer; 9. Inner lining layer; 10. Insulation layer; 11. Support bar. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, “several” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] The embodiment of the utility model discloses an anti-interference communication cable. Figure 1-3 An anti-interference communication cable includes an outer protective layer 1, a shielding layer 2, a shielding layer 2, a buffer layer 4, an inner sheath layer 5, a filling layer 6 and a core 7. The filling layer 6 is arranged between the inner sheath layer 5 and the core 7. The outer surface of the inner sheath layer 5 wraps the shielding layer 2 and the shielding layer 2 3 respectively. A buffer layer 4 is arranged between the shielding layer 1 2 and the shielding layer 2 3. The shielding layer 1 2 is set as a copper braided wire sleeve, and the copper braided wire sleeve is made of two groups of continuous copper wires cross-woven. Through this design, the copper braided wire has good electromagnetic shielding performance, which can effectively block the influence of external electromagnetic interference on the internal signal of the cable; and the copper braided wire has excellent conductivity, can form a continuous shielding layer, and provide a higher shielding effect.

[0025] The shielding layer 2 3 is set as an aluminum foil sleeve, and the aluminum foil sleeve is set to a corrugated type; the corrugated structure can increase the surface area of the aluminum foil shielding layer, increase the contact area between the shielding layer and the external electromagnetic field, thereby improving the shielding effect, and the corrugated aluminum foil shielding layer is more flexible than the flat aluminum foil, which means that it can better adapt to the bending and deformation of the cable, thereby reducing stress during installation and use.

[0026] The buffer layer 4 is made of elastic material, and the elastic material is in close contact with the corrugated surface of the inner wall of the shielding layer 2 3. The buffer layer 4 can provide mechanical protection to help reduce the impact between the shielding layer 1 2 and the shielding layer 2 3. An inner lining layer 9 is provided between the shielding layer 1 2 and the inner sheath layer 5. The inner lining layer 9 is made of nitrile rubber. The rubber material can provide good flexibility and wear resistance, and can effectively prevent the copper braided wire of the shielding layer 2 from interacting with the inner sheath to form extrusion and wear.

[0027] A moisture-proof layer 8 is provided between the shielding layer 2 3 and the outer sheath layer. The moisture-proof layer 8 is made of polyurethane (PU). Polyurethane is an elastic material with good wear resistance, oil resistance and chemical corrosion resistance, thereby providing a better moisture-proof effect.

[0028] There are three wire cores 7, and an insulating layer 10 is provided on the outside of the three wire cores 7. A support bar 11 is also provided in the filling layer 6. The three surfaces of the support bar 11 are set as arc surfaces. The insulating layers 10 on the outside of the three groups of wire cores 7 are tightly against the arc surfaces of the support bars 11. The arc surface structure of the support bars 11 can provide uniform supporting force, keep the position of the wire cores 7 stable, and help prevent mutual interference and damage between the wire cores 7.

[0029] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An anti-interference communication cable, characterized in that: The invention comprises an outer protective layer (1), a shielding layer 1 (2), a shielding layer 2 (3), a buffer layer (4), an inner sheath layer (5), a filling layer (6) and a wire core (7), wherein the filling layer (6) is arranged between the inner sheath layer (5) and the wire core (7), the outer portion of the inner sheath layer (5) respectively wraps the shielding layer 1 (2) and the shielding layer 2 (3), a buffer layer (4) is arranged between the shielding layer 1 (2) and the shielding layer 2 (3), the shielding layer 1 (2) is arranged as a copper braided wire sleeve, and the copper braided wire sleeve is formed by cross-weaving two groups of continuous copper wires.

2. The anti-interference communication cable according to claim 1, characterized in that: The second shielding layer (3) is configured as an aluminum foil sleeve layer, and the aluminum foil sleeve is configured as a corrugated type.

3. The anti-interference communication cable according to claim 2, characterized in that: The buffer layer (4) is made of an elastic material, and the elastic material is in close contact with the corrugated surface of the inner wall of the second shielding layer (3).

4. The anti-interference communication cable according to claim 1, characterized in that: A moisture-proof layer (8) is provided between the second shielding layer (3) and the outer sheath layer, and the moisture-proof layer (8) is made of polyurethane.

5. The anti-interference communication cable according to claim 1, characterized in that: An inner lining layer (9) is provided between the shielding layer 1 (2) and the inner sheath layer (5), and the inner lining layer (9) is made of nitrile rubber.

6. The anti-interference communication cable according to claim 1, characterized in that: Three wire cores (7) are provided, and an insulating layer (10) is provided outside each of the three wire cores (7).

7. The anti-interference communication cable according to claim 6, characterized in that: A support bar (11) is further provided in the filling layer (6), and three surfaces of the support bar (11) are configured as arc-shaped surfaces. The insulating layers (10) outside the three groups of wire cores (7) are tightly against the arc-shaped surfaces of the support bar (11).

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