High-performance multi-layer shielding data cable

Abstract

The utility model discloses a high-performance multi-layer shielding data cable, which comprises a cable core, a first shielding layer, a second shielding layer, a filling layer and an outer sheath which are sequentially arranged from inside to outside, the cable core comprises a plurality of insulated wire cores which are twisted together; each insulating wire core comprises a conductor and an insulating layer wrapping the conductor. The conductor is formed by twisting a plurality of strands of silver-plated copper wires; the insulating layer is a PFA foaming layer; the first shielding layer is an aluminum foil shielding layer; the second shielding layer is formed by weaving silver-plated copper wires; the filling layer is of a foam structure. The data cable has excellent signal transmission performance, anti-interference capability, environment resistance, flexibility and compression resistance.

Description

TECHNICAL FIELD

[0001] The utility model relates to communication cable technical field, especially a kind of high-performance multilayer shielded data cable. BACKGROUND

[0002] With the rapid development of information technology, the demand for data transmission is increasing, and the performance requirements for data cable are also increasing. Although the existing data cable can meet the basic data transmission requirements, there are still deficiencies in high-speed transmission, anti-interference and environmental performance. For example, common data cable is easily affected by electromagnetic interference when transmitting at high frequency, which affects the stability and reliability of data transmission. In addition, the temperature resistance and mechanical strength of traditional cable need to be improved. SUMMARY

[0003] To solve the above technical problems, the purpose of the utility model is to provide a kind of high-performance multilayer shielded data cable. The data cable has excellent signal transmission performance, anti-interference ability, environmental performance, flexibility and compression resistance.

[0004] To achieve the above technical purpose and achieve the above technical effect, the utility model realizes by the following technical scheme:

[0005] A kind of high-performance multilayer shielded data cable, including cable core, first shielding layer, second shielding layer, filling layer and outer sheath arranged in turn from inside to outside;

[0006] The cable core includes a plurality of twisted together insulated wire cores;Each insulated wire core includes a conductor and an insulating layer wrapped around the conductor;The conductor is twisted from a plurality of silver-plated copper wires;The insulating layer is a PFA foam layer;The first shielding layer is an aluminum foil shielding layer;The second shielding layer is woven from silver-plated copper wire;The filling layer is a foam structure.

[0007] Further, the conductor is twisted from a plurality of silver-plated copper wires with a diameter of 0.1-0.15mm.

[0008] Further, the thickness of the insulating layer is 0.15-0.2mm.

[0009] Further, the thickness of the aluminum foil used in the first shielding layer is 0.05-0.1mm.

[0010] Further, the diameter of the silver-plated copper wire used in the second shielding layer is 0.1-0.15mm;The weaving density of the second shielding layer is 80%.

[0011] Further, the filling layer is a polypropylene foam structure.

[0012] Further, the thickness of the filling layer is 0.3-0.4mm.

[0013] Further, the outer sheath is a modified polyvinyl chloride sheath.

[0014] Further, the thickness of the outer sheath is 0.5-0.6mm.

[0015] Further, the cable core is further provided with a filling rope.

[0016] The utility model discloses the beneficial effect is:

[0017] The conductor in the cable is twisted by multiple silver-plated copper wires and is used for transmitting data signals; the silver-plated copper wire is used to make the conductor, which can improve the conductivity and flexibility of the conductor.

[0018] The insulating layer wrapped outside the conductor is made of foamed PFA material, which has higher chemical corrosion resistance and high and low temperature resistance, lower dielectric loss tangent and good electrical properties, stable performance in a wide temperature range, good insulation performance and fire-retardant effect.

[0019] The first shielding layer in the cable is made of aluminum foil and closely adheres to the cable core to shield external electromagnetic interference.

[0020] The second shielding layer in the cable is woven by silver-plated copper wires and wrapped outside the first shielding layer to further enhance the anti-interference ability in cooperation with the first shielding layer.

[0021] The filling layer in the cable is filled between the second shielding layer and the outer sheath and is formed into a foamed structure by polypropylene foam material to improve the flexibility and pressure resistance of the cable.

[0022] The outer sheath in the cable is made of modified polyvinyl chloride material, which has excellent wear resistance, weather resistance and chemical corrosion resistance, and enhances the durability and adaptability of the cable. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structure schematic view of the high-performance multilayer shielding data cable of the utility model.

[0024] In the figure, 1: cable core, 11: insulated wire core, 111: conductor, 112: insulating layer, 12: filling rope; 2: first shielding layer; 3: second shielding layer; 4: filling layer; 5: outer sheath. DETAILED DESCRIPTION

[0025] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and features of the utility model can be more easily understood by the person skilled in the art, and the protection scope of the utility model is more clearly and explicitly defined.

[0026] As Figure 1The utility model provides a high performance multilayer shielding data cable, which comprises, from inside to outside, a cable core 1, a first shielding layer 2, a second shielding layer 3, a filling layer 4 and an outer sheath 5.

[0027] The cable core 1 comprises a plurality of insulated wire cores 11 twisted together; each insulated wire core 11 comprises a conductor 111 and an insulating layer 112 wrapped outside the conductor; the conductor 111 is twisted from a plurality of silver-plated copper wires; the insulating layer 112 is a PFA foaming layer; the first shielding layer 2 is an aluminum foil shielding layer; the second shielding layer 3 is woven from silver-plated copper wires; and the filling layer 4 is a foam structure.

[0028] The conductor 111 is twisted from a plurality of silver-plated copper wires with a diameter of 0.1-0.15 mm for transmitting data signals; the use of silver-plated copper wires for the conductor can improve the electrical conductivity and flexibility of the conductor.

[0029] The thickness of the insulating layer 112 is 0.15-0.2 mm. In the utility model, the insulating layer 112 wrapped outside the conductor is made of foaming PFA material, which has higher chemical corrosion resistance and high and low temperature resistance, lower dielectric loss tangent and good electrical properties, stable performance in a wide temperature range, good insulating properties and flame retardation effect.

[0030] The thickness of the aluminum foil of the first shielding layer 2 is 0.05-0.1 mm. In the utility model, the first shielding layer 2 in the cable is made of aluminum foil, which tightly adheres to the cable core and can effectively shield external electromagnetic interference.

[0031] The diameter of the silver-plated copper wire of the second shielding layer 3 is 0.1-0.15 mm; and the weaving density of the second shielding layer is 80%. The second shielding layer 3 cooperates with the first shielding layer 2 to further enhance the anti-interference capability.

[0032] The filling layer 4 is a polypropylene foam structure; and the thickness of the filling layer 4 is 0.3-0.4 mm. The filling layer 4 is formed into a foam structure by using polypropylene foam material, which can effectively improve the flexibility and compression resistance of the cable.

[0033] The outer sheath 5 is a modified polyvinyl chloride sheath; and the thickness of the outer sheath 5 is 0.5-0.6 mm. The use of modified polyvinyl chloride material can make the outer sheath have excellent wear resistance, weather resistance and chemical corrosion resistance, thereby enhancing the durability and adaptability of the entire cable.

[0034] The cable core 1 further comprises a filling rope 12 to make the entire cable core have better roundness and improve the mechanical properties of the cable core.

[0035] Embodiment

[0036] The high-performance multi-layer shielding data cable of the embodiment comprises, from inside to outside, a cable core 1, a first shielding layer 2, a second shielding layer 3, a filling layer 4 and an outer sheath 5;

[0037] The cable core 1 comprises a plurality of insulated wire cores 11 twisted together; each insulated wire core 11 comprises a conductor 111 and an insulating layer 112 wrapped outside the conductor 111; the conductor 111 is twisted from a plurality of silver-plated copper wires; the insulating layer 112 is a PFA foamed layer; the first shielding layer 2 is an aluminum foil shielding layer; the second shielding layer 3 is woven from silver-plated copper wires; and the filling layer 4 is a foamed structure.

[0038] The conductor 111 is twisted from a plurality of silver-plated copper wires with a diameter of 0.1 mm.

[0039] The thickness of the insulating layer 112 is 0.15 mm.

[0040] The thickness of the aluminum foil of the first shielding layer 2 is 0.05 mm.

[0041] The diameter of the silver-plated copper wire of the second shielding layer 3 is 0.1 mm; and the weaving density of the second shielding layer 3 is 80%.

[0042] The filling layer 4 is a polypropylene foamed structure; and the thickness of the filling layer 4 is 0.3 mm.

[0043] The outer sheath 5 is a modified polyvinyl chloride sheath; and the thickness of the outer sheath 5 is 0.5 mm.

[0044] The cable core 1 is further provided with a filling rope 12 filled in the gap in the cable core to make the entire cable core have better roundness and improve the mechanical properties of the cable core.

[0045] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0046] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A high performance multi-layer shielded data cable characterized by, The cable core, the first shielding layer, the second shielding layer, the filling layer and the outer sheath are sequentially arranged from inside to outside. The cable core comprises a plurality of insulated cores twisted together; each insulated core comprises a conductor and an insulating layer wrapped outside the conductor; the conductor is twisted by a plurality of silver-plated copper wires; the insulating layer is a PFA foaming layer; the first shielding layer is an aluminum foil shielding layer; the second shielding layer is woven by silver-plated copper wires; and the filling layer is a foaming structure.

2. A high performance multi-layer shielded data cable according to claim 1, wherein, The conductor is twisted by a plurality of silver-plated copper wires with a diameter of 0.1-0.15 mm.

3. A high performance multi-layer shielded data cable according to claim 1, wherein, The thickness of the insulating layer is 0.15-0.2 mm.

4. A high performance multi-layer shielded data cable according to claim 1, wherein, The thickness of the aluminum foil of the first shielding layer is 0.05-0.1 mm.

5. A high performance multi-layer shielded data cable according to claim 1, wherein, The diameter of the silver-plated copper wire of the second shielding layer is 0.1-0.15 mm; and the weaving density of the second shielding layer is 80%.

6. A high performance multi-layer shielded data cable according to claim 1, wherein, The filling layer is a polypropylene foaming structure.

7. A high performance multi-layer shielded data cable according to claim 1, wherein, The thickness of the filling layer is 0.3-0.4 mm.

8. A high performance multi-layer shielded data cable according to claim 1, wherein, The outer sheath is a modified polyvinyl chloride sheath.

9. A high performance multi-layer shielded data cable according to claim 1, wherein, The thickness of the outer sheath is 0.5-0.6 mm.

10. The high performance multi-layer shielded data cable of claim 1, wherein, The cable core further comprises a filling rope.

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