High-speed transmission signal shielding control cable

Abstract

The utility model relates to the technical field of cables, and discloses a high-speed transmission signal shielding control cable, which comprises a main line unit, a plurality of auxiliary line units used for transmitting auxiliary signals are arranged on the periphery of the main line unit, and an insulating layer II used for isolating a conductor from the outside is sleeved on the periphery of the plurality of auxiliary line units. The outer wall of the second insulating layer is sleeved with an aluminum foil used for shielding electromagnetic interference, the outer wall of the aluminum foil is provided with a woven mesh used for shielding electromagnetic interference, and the outer wall of the woven mesh is connected with a sheath used for protecting the internal structure of the cable from external mechanical damage through a protection assembly. According to the utility model, when external electromagnetic interference encounters the aluminum foil and the woven mesh arranged in the cable, the interference waves can be effectively reduced from entering the cable, the fixing sleeve I and the fixing sleeve II tightly wrap the inner and outer peripheries of the flexible pipe to firmly fix the flexible pipe in the cable, and the flexible pipe has certain flexibility and strength, so that the flexible pipe can be firmly fixed in the cable. And a certain degree of stretching and bending stress can be borne.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field especially relates to a high -speed transmission signal shielding control cable. BACKGROUND

[0002] In today's rapid development of science and technology era, high-speed transmission signal shielding control cable plays an indispensable key role in many fields. It is widely used in industrial automation control system, communication network equipment, aerospace electronic equipment and various high-precision instruments and meters, etc. field, is the important foundation of ensuring signal accuracy, high-speed transmission, realizing equipment accurate control and efficient operation.

[0003] In the prior art, the traditional control cable exposes many defects when facing high-speed signal transmission and complex electromagnetic environment. With the increasing number of electronic equipment and intensive deployment, the electromagnetic environment becomes extremely complex, electromagnetic interference (EMI) and radio frequency interference (RFI) are everywhere. And the traditional cable often only adopts simple insulation structure, lacks effective electromagnetic shielding means. In such an environment, external interference waves can easily penetrate the cable skin, affecting internal signal transmission. In the communication network, interference will cause data transmission to output error code, packet loss and other problems, reduce communication quality and speed. For this technical problem, the present application proposes a high-speed transmission signal shielding control cable. UTILITARIAN CONTENT

[0004] The utility model discloses a high-speed transmission signal shielding control cable, when the external electromagnetic interference meets the aluminum foil and the woven net set in the cable, can effectively reduce these interference waves into the cable interior, and the fixed sleeve no. 1 and the fixed sleeve no. 2 are tightly wrapped in the outer periphery of the hose, and are firmly fixed in the cable interior, and the hose has certain flexibility and strength, can bear a certain degree of tensile and bending stress.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A high-speed transmission signal shielding control cable, comprising a main line unit for transmitting high-speed signals, a plurality of auxiliary signal transmission units are provided on the outer periphery of the main line unit, a plurality of the auxiliary signal transmission units are provided with an insulating layer two for isolating the conductor from the outside, an aluminum foil for shielding electromagnetic interference is provided on the outer wall of the insulating layer two, a woven net for shielding electromagnetic interference is provided on the outer wall of the aluminum foil, a protective sleeve for protecting the internal structure of the cable from external mechanical damage is connected to the outer wall of the woven net through a protection assembly, and a fireproof coating for enhancing the fireproof performance of the cable is provided on the outer wall of the protective sleeve.

[0007] The protection assembly includes a fixed sleeve one on the outer wall of the braided mesh, the outer wall of the fixed sleeve one is provided with a hose, the outer wall of the hose is provided with a fixed sleeve two, and the fixed sleeve two is arranged on the inner wall of the sheath.

[0008] Further, the outer walls of the main wire unit and the auxiliary wire unit are both sleeved with an insulation layer one.

[0009] Further, the inner wall of the insulation layer two is provided with a filling material one.

[0010] Further, the outer wall of the fixed sleeve one is provided with a filling material two, and the filling material two is arranged on the inner wall of the fixed sleeve two.

[0011] Further, the insulation layer one is prepared from polyethylene as raw material.

[0012] Further, the insulation layer two is prepared from polyvinyl chloride as raw material.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the cable can shield electromagnetic effect, when the external electromagnetic interference meets the aluminum foil and the braided mesh arranged in the cable, according to electromagnetic induction principle, the free electron in metal can redistribute under the action of electromagnetic field, which can effectively reduce the interference wave into the cable internal, and protect the internal signal from being affected.

[0015] 2. In the utility model, the cable can bear a certain degree of tensile and bending stress effect, the fixed sleeve one and the fixed sleeve two are tightly wrapped in the inner and outer periphery of the hose, and are fixed in the cable internal, and the hose has certain flexibility and strength, can bear a certain degree of tensile and bending stress, reduce the damage to the internal structure of the cable, and can also resist the impact force of the outside, thereby reducing the damage risk of the cable, ensuring the normal operation of the cable, and further protecting the cable. ACCURACY

[0016] Fig. 1 A perspective view of the high-speed transmission signal shielding control cable is provided for the utility model;

[0017] Fig. 2 A braided mesh structure schematic view of the high-speed transmission signal shielding control cable is provided for the utility model;

[0018] Fig. 3 A filling material one structure schematic view of the high-speed transmission signal shielding control cable is provided for the utility model.

[0019] LEGEND:

[0020] 1, main line unit; 2, auxiliary line unit; 3, insulation layer one; 4, filling material one; 5, insulation layer two; 6, aluminum foil; 7, braided mesh; 8, fixed sleeve one; 9, hose; 10, filling material two; 11, fixed sleeve two; 12, sheath; 13, fireproof coating. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Referring to Figs. 1-3 An embodiment provided by the utility model: a high-speed transmission signal shielding control cable, comprising a main line unit 1 for transmitting high-speed signals, a plurality of auxiliary line units 2 are arranged on the outer periphery of the main line unit 1 for transmitting auxiliary signals, an insulation layer two 5 for isolating the conductor from the outside world is arranged on the outer periphery of the plurality of auxiliary line units 2, an aluminum foil 6 for shielding electromagnetic interference is arranged on the outer wall of the insulation layer two 5, a braided mesh 7 also for shielding electromagnetic interference is arranged on the outer wall of the aluminum foil 6, a sheath 12 for protecting the internal structure of the cable from external mechanical damage is connected to the braided mesh 7 through a fixed sleeve one 8, a hose 9 and a fixed sleeve two 11, and a fireproof coating 13 for enhancing the fireproof performance of the cable is arranged on the outer wall of the sheath 12.

[0023] Specifically, the cable is internally provided with the aluminum foil 6 and the braided mesh 7, so that part of the interference waves will generate induced current in the aluminum foil 6 and the braided mesh 7 during the penetration of the cable. According to Joule's law, these induced currents will convert electromagnetic energy into heat energy and be consumed when flowing in the metal, like an "electromagnetic energy absorber", further reducing the strength of electromagnetic interference. According to the principle of electromagnetic induction, when the electromagnetic interference from the nearby motor, transformer, radio transmitting equipment and the like meets the aluminum foil 6 and the braided mesh 7 arranged in the cable, the free electrons in the metal will be redistributed under the action of the electromagnetic field, which can effectively reduce the interference waves entering the internal structure of the cable and protect the internal signals from being affected. The sheath 12 is the protective structure of the outermost layer of the cable, and the fireproof coating 13 usually contains flame retardants, which can further enhance the fireproof performance of the cable. When encountering fire, these flame retardants will decompose and absorb heat, thereby reducing the surface temperature of the cable and preventing the spread of fire.

[0024] Referring to Figs. 1-3The fixed sleeve one 8 is arranged on the outer wall of the woven mesh 7, the outer wall of the fixed sleeve one 8 is provided with the hose 9, the outer wall of the hose 9 is provided with the fixed sleeve two 11, the fixed sleeve two 11 is arranged on the inner wall of the sheath 12, the outer walls of the main wire unit 1 and the auxiliary wire unit 2 are provided with the insulation layer one 3, the inner wall of the insulation layer two 5 is provided with the filling material one 4, the outer wall of the fixed sleeve one 8 is provided with the filling material two 10, the filling material two 10 is arranged on the inner wall of the fixed sleeve two 11, the insulation layer one 3 is prepared by taking polyethylene as a raw material, and the insulation layer two 5 is prepared by taking polyvinyl chloride as a raw material;

[0025] Specifically, the fixed sleeve one 8 and the fixed sleeve two 11 are tightly wrapped around the inner and outer peripheries of the hose 9, and are firmly fixed in the cable, so that the stability of the internal structure of the cable is ensured. The hose 9 has certain flexibility and strength, can withstand a certain degree of tensile and bending stress, can play a role in buffering and dispersing stress when the cable is subjected to external force pulling or bending, reduces the damage to the internal structure of the cable, and can also resist external impact force, thereby reducing the damage risk of the cable, ensuring the normal operation of the cable, and further protecting the cable. The insulation layer one 3 has the characteristics of high insulation resistance and good chemical stability, and can provide a good electrical insulation environment for the conductor. The insulation layer two 5 has certain mechanical properties, such as wear resistance and corrosion resistance, and can better protect the conductor in a more complex environment. Under the action of the filling material one 4 and the filling material two 10, the shape of the cable can be kept round, so as to avoid mutual extrusion between the core wires when subjected to external force.

[0026] Working principle: In this high-speed transmission signal shielding control cable, the main wire unit 1 is dedicated to the transmission of high-speed signals, and the auxiliary wire unit 2 is used for the transmission of auxiliary signals. The insulation layer one 3 and the insulation layer two 5 provide insulation protection for the respective conductors. The polyethylene material of the insulation layer one 3 ensures good electrical insulation performance, and the polyvinyl chloride material of the insulation layer two 5 enhances the mechanical protection of the conductor. When facing external electromagnetic interference, the aluminum foil 6 and the woven mesh 7 can prevent it from entering the cable interior, thereby protecting the integrity of the signal. The fixed sleeve one 8 and the fixed sleeve two 11 tightly fix the hose 9, so that it is stable in the cable interior and the structure is stable. The hose 9 can buffer and disperse stress when the cable is subjected to external force due to its flexibility and strength. The filling material one 4 and the filling material two 10 maintain the shape of the cable to avoid extrusion of the core wires. The sheath 12 provides outer protection, and the fireproof coating 13 ensures the safety performance of the cable in terms of fire prevention.

[0027] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A high speed transmission signal shielded control cable characterized by: The application relates to a cable, which comprises a main line unit (1) for transmitting high-speed signals, a plurality of auxiliary line units (2) for transmitting auxiliary signals are arranged on the periphery of the main line unit (1), a second insulation layer (5) for isolating conductors from the outside world is arranged on the periphery of the plurality of auxiliary line units (2), an aluminum foil (6) for shielding electromagnetic interference is arranged on the outer wall of the second insulation layer (5), a woven mesh (7) for shielding electromagnetic interference is arranged on the outer wall of the aluminum foil (6), a sheath (12) for protecting the internal structure of the cable from mechanical damage from the outside world is connected to the outer wall of the woven mesh (7) through a protection assembly, and a fireproof coating (13) for enhancing the fireproof performance of the cable is arranged on the outer wall of the sheath (12). The protection assembly comprises a first fixing sleeve (8) arranged on the outer wall of the woven mesh (7), a hose (9) arranged on the outer wall of the first fixing sleeve (8), and a second fixing sleeve (11) arranged on the inner wall of the sheath (12).

2. A high speed transmission signal shielded control cable according to claim 1, characterized in that: The outer wall of the main line unit (1) and the auxiliary line unit (2) is sleeved with a first insulation layer (3).

3. A high speed transmission signal shielded control cable according to claim 1, characterized in that: The inner wall of the second insulation layer (5) is provided with a first filling material (4).

4. A high speed transmission signal shielded control cable according to claim 1, characterized in that: The outer wall of the first fixing sleeve (8) is provided with a second filling material (10), and the second filling material (10) is arranged on the inner wall of the second fixing sleeve (11).

5. A high speed transmission signal shielded control cable according to claim 2, characterized in that: The first insulation layer (3) is prepared by taking polyethylene as raw material.

6. A high speed transmission signal shielded control cable according to claim 1, characterized in that: The second insulation layer (5) is prepared by taking polyvinyl chloride as raw material.

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