Six-wire-pair anti-interference cable

Abstract

The utility model relates to a six-wire-pair anti-interference cable, which comprises a main wire core, an insulating layer is wrapped outside the main wire core, a protective function layer is wrapped outside the insulating layer, six groups of same winding cables are wrapped outside the protective function layer, a wire pair core is arranged in the center of the interior of each winding cable, and the winding cables are mutually screwed and wound. The outer side of the wire pair core is wrapped by the insulating foaming layer, the center position of the wire pair core is provided with the drain wire, the outer side of the insulating foaming layer is wrapped by the aluminum foil layer, the outer side of the aluminum foil layer is wrapped by the nickel-zinc ferrite magnetic ring layer, and the outer side of the nickel-zinc ferrite magnetic ring layer is wrapped by the wear-resistant layer. The main wire cores and the wire pair cores are respectively subjected to insulation protection, then the anti-interference capability of the cable is improved by using the aluminum foil layer, the twelve groups of same winding wires are adopted, and the outer sides of the winding wires are wrapped with the wear-resistant sheath, so that the overall wear-resistant performance is improved, and the cable is particularly suitable for cables needing to be frequently carried.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a six-wire anti-interference cable. Background Art

[0002] Cables are widely used in the fields of electricity, communications, etc. They can be used to transmit current signals, control signals, video signals, etc. The structure of ordinary digital cables: ordinary high-speed data cables are made by extruding a layer of PE insulation on the outside of a copper conductor to form an insulated single wire, and then two single wires are twisted into a pair, which is then cabled and sheathed. The existing six-pair cables have poor wear resistance and poor anti-interference ability.

[0003] Patent No. CN201320440731.9 discloses a six-wire pair high-speed data cable, which is composed of six copper wire pairs consisting of two copper wires with silver-plated surfaces, two copper wires in the copper wire pair are arranged in parallel, and the copper wires are both covered with a first insulating layer as insulation; five copper wire pairs in the six copper wire pairs are each wrapped with a first polyester tape on the outer surface, and the remaining copper wire in the six copper wire pairs is wrapped with a first single-sided aluminum foil on the outer surface; the copper wire pair is wrapped with the first polyester tape and the first single-sided aluminum foil Drain lines are provided between the aluminum foils; a non-woven fabric is coated on two copper wire pairs wrapped with a first single-sided aluminum foil, and the five copper wire pairs wrapped with a first polyester tape are twisted on the outside of the non-woven fabric. The high-speed data cable effectively solves the problem of line pair delay difference in the performance of the cable product while ensuring the transmission characteristics of the high-speed data cable, thereby ensuring the stability of the cable insulation and high-frequency signal transmission performance. However, the cable has the following problems: first, the transmission efficiency is low, and second, the anti-interference performance is poor, the wear resistance is poor, and the weather resistance is also poor. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art by providing an insulating layer and an insulating foam layer to insulate and protect the main line core and the line pair core respectively, and then using an aluminum foil layer to increase the anti-interference ability of the cable, using twelve groups of identical winding wires, and wrapping the outer side of the winding wire with a wear-resistant sheath, which effectively solves the technical problems of low transmission efficiency, poor anti-interference ability, and poor wear resistance in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A six-wire anti-interference cable comprises a main core, an insulating layer wrapped around the outside of the main core, a protective functional layer wrapped around the outside of the insulating layer, six groups of identical winding cables wrapped around the outside of the protective functional layer, a wire pair core is arranged at the center of the winding cable, and the winding cables are tightly wound around each other, an insulating foam layer is wrapped around the outside of the wire pair core, and a drainage wire is arranged at the center of the wire pair core, an aluminum foil layer is wrapped around the outside of the insulating foam layer, a nickel-zinc ferrite magnetic ring layer is wrapped around the outside of the aluminum foil layer, and a wear-resistant layer is wrapped around the outside of the nickel-zinc ferrite magnetic ring layer.

[0007] As a preference, the insulating layer comprises a rubber insulating layer, and the rubber insulating layer comprises a rubber layer and a compounding agent layer.

[0008] Preferably, the protective functional layer comprises an epoxy resin coating, the epoxy resin coating is wrapped with a polytetrafluoroethylene coating on the outside, and the polytetrafluoroethylene coating is wrapped with a polyethylene outer sheath on the outside.

[0009] As a preference, the insulating foam layer is an insulating foam layer, and small through holes are provided on the surface of the insulating foam layer.

[0010] Preferably, the wear-resistant layer comprises a metal woven mesh layer, a No. 2 polyethylene outer sheath is provided on the outside of the metal woven mesh layer, twelve groups of identical winding wires are wrapped on the outside of the No. 2 polyethylene outer sheath, and a wear-resistant sheath is provided on the outside of the winding wires.

[0011] As another preferred embodiment, the insulating foam layer is filled with glass fiber filaments, and the wire pair core is wrapped inside the glass fiber filaments.

[0012] Beneficial effects of the utility model:

[0013] (1) In the present invention, by providing a drain line, external interference with the signal current is effectively avoided, the total current on the cable is significantly reduced, the shielding performance is improved, and the stability of the cable insulation and high-frequency signal transmission performance is further enhanced.

[0014] (2) In the utility model, a winding cable is arranged, and a layer of winding wire is added to the outer side of the line pair core by utilizing the wear-resistant sheath of the winding cable. The inside of the winding wire is made of solid rubber material, which has good wear resistance and tensile performance, high stability, and will not wear the internal line pair core and the main line core even if it is frequently carried. It has strong toughness, tensile resistance, good wear resistance and high stability.

[0015] (3) In the present invention, by providing an aluminum foil layer, electromagnetic interference can be effectively reduced, ensuring that the cable has an outstanding anti-interference effect.

[0016] In summary, the cable has the advantages of strong toughness, tensile resistance, good wear resistance, high stability and outstanding anti-interference effect, and is particularly suitable for the field of cable technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic structural diagram of the wear-resistant layer in the utility model.

[0020] Figure 3 It is a structural schematic diagram of the insulating foam layer in the utility model.

[0021] Figure 4 It is a schematic diagram of the structure of the protective functional layer in the utility model. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present utility model are clearly and completely described below in conjunction with the accompanying drawings.

[0023] Embodiment 1

[0024] like Figures 1 to 4 As shown, the utility model provides a six-wire anti-interference cable, including a main core 1, the outside of the main core 1 is wrapped with an insulating layer 11, the outside of the insulating layer 11 is wrapped with a protective function layer 12, the outside of the protective function layer 12 is wrapped with six groups of identical winding cables 2, a wire pair core 21 is provided at the center of the winding cable 2, and the winding cables 2 are tightly wound with each other, the outside of the wire pair core 21 is wrapped with an insulating foam layer 3, and a drainage line 22 is provided at the center of the wire pair core 21, the outside of the insulating foam layer 3 is wrapped with an aluminum foil layer 4, the outside of the aluminum foil layer 4 is wrapped with a nickel-zinc ferrite magnetic ring layer 5, and the outside of the nickel-zinc ferrite magnetic ring layer 5 is wrapped with a wear-resistant layer 6.

[0025] Furthermore, the insulating layer 11 includes a rubber insulating layer, which includes a rubber layer and a compounding agent layer. The rubber insulating layer is formed by combining rubber and a compounding agent, and is later heated and vulcanized to form an elastic layer suitable for frequently moved cables. Moreover, the allowable working temperature of the rubber insulating layer can reach 90°C, and the weather resistance effect is good.

[0026] Furthermore, the protective functional layer 12 comprises an epoxy resin coating 121, the outer side of the epoxy resin coating 121 is wrapped with a polytetrafluoroethylene coating 122, the outer side of the polytetrafluoroethylene coating 122 is wrapped with a polyethylene outer sheath 123, and the high-density polyethylene outer sheath 123 enables the cable to have excellent properties such as UV resistance, radiation resistance, aging resistance, high hardness, wear resistance and chemical corrosion resistance. The polytetrafluoroethylene coating 122 enables the cable to have the advantages of high temperature resistance, low temperature resistance, weather resistance, high lubricity, non-adhesion, non-toxicity, corrosion resistance, aging resistance and low water absorption. The epoxy resin coating 121 enables the cable to have the advantages of high temperature resistance, corrosion resistance, alkali resistance, mildew resistance, water resistance and good leakage resistance.

[0027] Furthermore, the insulating foam layer 3 is an insulating foam layer, and the surface of the insulating foam layer 3 is provided with small through holes. The insulating foam layer 3 effectively prevents short circuits inside the cable and blocks external moisture and dirt from entering the cable. The insulating foam helps prevent moisture and pollution, as well as cable failures, ensuring the long-term use of the cable. In addition, the insulating foam also helps save electricity and improve the efficiency of the cable.

[0028] Furthermore, the wear-resistant layer 6 includes a metal braided mesh layer 61, a No. 2 polyethylene outer sheath 64 is provided on the outside of the metal braided mesh layer 61, twelve groups of identical winding wires 62 are wrapped on the outside of the No. 2 polyethylene outer sheath 64, and a wear-resistant sheath 63 is provided on the outside of the winding wire 62. The No. 2 polyethylene outer sheath 64 has good weather resistance and insulation protection effect, protecting the internal wire pair core 21 from external interference. The setting of the winding wire 62 makes the entire cable have good tensile resistance and wear resistance, which is suitable for cables that are frequently transported.

[0029] Furthermore, the insulating foam layer 3 is filled with glass fiber filaments, and the wire pair core 21 is wrapped inside the glass fiber filaments. The glass fiber filaments can have a large elongation within the elastic limit and a high tensile strength, so they can absorb large impact energy, have good processing performance and good stability.

[0030] Working process: first, wrap the insulating layer 11 on the outside of the main core 1 to ensure the overall insulation effect with a high safety factor, and then wrap the protective functional layer 12 on the insulating layer 11 to increase the weather resistance and high temperature resistance of the main core 1, and then wrap six groups of identical winding cables 2 on the outside of the main core 1, wherein the winding cable 2 is composed of twelve groups of identical winding wires 62 wrapped around the wire pair core 21, and a drainage wire is arranged at the center of the wire pair core 21 to improve the overall anti-interference performance and reduce external interference with the signal current, and an insulating foam layer 3 is arranged on the outside of the wire pair core 21 to effectively improve the elasticity and safety, and an aluminum foil layer 4 is wrapped on the outside of the insulating foam layer 3 to improve the cable anti-interference performance. It is worth mentioning that a wear-resistant sheath 63 is arranged on the outside of the winding wire 62 of the wear-resistant layer 6 to effectively improve the overall wear resistance, which is especially suitable for cables that need to be frequently transported.

[0031] In the description of the present invention, it is necessary to understand that the terms "front and back", "left and right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. The interior of the insulating foam layer (3) is filled with glass fiber yarns, and the glass fiber yarns wrap the wire pair core (21).

[0032] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0033] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art under the technical guidance of the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A six-wire anti-interference cable, characterized in that: The invention comprises a main line core (1), the main line core (1) is wrapped with an insulating layer (11) on the outside, the insulating layer (11) is wrapped with a protective functional layer (12) on the outside, the protective functional layer (12) is wrapped with six groups of identical winding cables (2) on the outside, a wire pair core (21) is provided at the center of the winding cable (2), and the winding cables (2) are tightly wound around each other, the wire pair core (21) is wrapped with an insulating foam layer (3), and a drain wire (22) is provided at the center of the wire pair core (21), the insulating foam layer (3) is wrapped with an aluminum foil layer (4), the aluminum foil layer (4) is wrapped with a nickel-zinc ferrite magnetic ring layer (5), and the nickel-zinc ferrite magnetic ring layer (5) is wrapped with a wear-resistant layer (6) on the outside.

2. A six-wire anti-interference cable according to claim 1, characterized in that: The insulating layer (11) comprises a rubber insulating layer, and the rubber insulating layer comprises a rubber layer and a compounding agent layer.

3. The six-wire anti-interference cable according to claim 1, characterized in that: The protective functional layer (12) comprises an epoxy resin coating (121), the outer side of the epoxy resin coating (121) is wrapped with a polytetrafluoroethylene coating (122), and the outer side of the polytetrafluoroethylene coating (122) is wrapped with a polyethylene outer sheath (123).

4. The six-wire anti-interference cable according to claim 1, characterized in that: The insulating foam layer (3) is an insulating foam layer, and the surface of the insulating foam layer (3) is provided with fine through holes.

5. The six-wire anti-interference cable according to claim 1, characterized in that: The wear-resistant layer (6) comprises a metal braided mesh layer (61), a second polyethylene outer sheath (64) is provided on the outside of the metal braided mesh layer (61), twelve groups of identical winding wires (62) are wrapped on the outside of the second polyethylene outer sheath (64), and a wear-resistant sheath (63) is provided on the outside of the winding wires (62).

6. The six-wire anti-interference cable according to claim 1, characterized in that: The insulating foam layer (3) is filled with glass fiber yarns, and the wire pair core (21) is wrapped inside the glass fiber yarns.

Images