Multi-shielding cable

Abstract

The utility model relates to the field of cable transmission, and discloses a multi-shielded cable, which comprises a polyurethane damping layer, a transmission copper conductor is arranged in the middle of the inner side of the polyurethane damping layer, a transmission copper sleeve is fixedly connected outside the transmission copper conductor, a cooling support layer is fixedly connected outside the transmission copper sleeve, and the cooling support layer is fixedly connected outside the polyurethane damping layer. The inner side of the polyurethane damping layer is fixedly connected with a tensile colloid supporting layer, the tensile colloid supporting layer is connected with the cooling supporting layer through multiple shielding assemblies, and the outer side of the tensile colloid supporting layer is connected with the inner side of the polyurethane damping layer through multiple supporting compression-resistant assemblies. According to the utility model, shielding is carried out in a multi-layer manner, so that the transmission stability of the internal cable is ensured, the transmission efficiency is improved, the anti-pressure capability of the cable is improved, the blocking of power transmission caused by external extrusion of the internal cable is avoided, and the stability is further improved.

Description

Technical Field

[0001] The utility model relates to the field of cable transmission, in particular to a multi-shielded cable. Background Art

[0002] A shielded cable is a cable used to transmit signals. It has a shielding layer to reduce the impact of external electromagnetic interference on the signal. In a shielded cable, the shielding layer is usually made of conductive material to block interference from external electromagnetic fields and protect the integrity of internal signal transmission.

[0003] After searching, the cable with announcement number CN216980148U includes: a cable core, including a plurality of insulating cores and a filling part arranged between two adjacent insulating cores; a sheath, which is sleeved outside the cable core, and the sheath includes an annular sheath body and a structural reinforcement member, the annular sheath body has a mounting hole, and the structural reinforcement member is inserted into the mounting hole; wherein the structural reinforcement member is made of at least one of glass fiber yarn, polypropylene fiber yarn, Kevlar fiber yarn and carbon fiber yarn. The utility model effectively solves the problem in the prior art that the cable sheath is prone to cracking and affects the service life of the cable.

[0004] Based on the above patent, the sheath includes an annular sheath body and a structural reinforcement, the structural reinforcement is arranged in the mounting hole of the annular sheath body, and the structural reinforcement is made of at least one of glass fiber yarn, polypropylene fiber yarn, Kevlar fiber yarn and carbon fiber yarn. In this way, the above arrangement of the structural reinforcement improves the structural strength of the sheath. When the cable is bent, the structural reinforcement can improve the sheath's anti-pulling ability, thereby effectively improving the sheath's anti-cracking performance, solving the problem of the cable sheath being prone to cracking in the prior art and affecting the service life of the cable, extending the service life of the cable, and avoiding electric shock accidents caused by sheath cracking. However, the cable is used in many environments, and the external environment magnetic field of some cables is strong. The strong magnetic field will affect the transmission inside the cable, and the transmission effect is poor. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a multi-shielded cable with strong magnetic field shielding and pressure resistance.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A multiple shielded cable comprises a polyurethane damping layer, a conveying copper conductor is arranged in the middle of the inner side of the polyurethane damping layer, a conveying copper conductor is fixedly connected to the outside of the conveying copper conductor with a conveying copper sleeve, a cooling support layer is fixedly connected to the outside of the conveying copper sleeve, a tensile colloid support layer is fixedly connected to the inner side of the polyurethane damping layer, the tensile colloid support layer is connected to the cooling support layer through a multiple shielding component, and the outer side of the tensile colloid support layer is connected to the inner side of the polyurethane damping layer through a plurality of supporting and compressive components.

[0008] Furthermore, the supporting pressure-resistant component includes fixed ring seats evenly arranged on the outside of the tensile colloid supporting layer, the outside of the fixed ring seats are provided with installation grooves, the inside of the installation grooves are fixedly connected with pressure-resistant support rings, and the inner side of the polyurethane damping layer is evenly provided with multiple limiting grooves from top to bottom.

[0009] Furthermore, the multi-shielding component includes a first shielding layer located outside the cooling support layer, the first shielding layer is fixedly connected to the outside with a first insulating adhesive layer, the first insulating adhesive layer is fixedly connected to the outside with a second shielding layer, and the second shielding layer is fixedly connected to the outside with a second insulating adhesive layer.

[0010] Furthermore, the outer side of the second insulating adhesive layer is fixedly connected to the inner side of the tensile colloid support layer.

[0011] Furthermore, the outer parts of the compression-resistant support rings are respectively inserted into the inner parts of the limiting grooves.

[0012] Furthermore, the first shielding layer is a metal braided shielding layer.

[0013] Furthermore, the second shielding layer is a metal foil shielding.

[0014] Furthermore, the cooling support layer is a carbon fiber sheet layer.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, the external magnetic field of the cable is shielded by the first shielding layer, the polyurethane damping layer, the first insulating adhesion layer, the second shielding layer, the second insulating adhesion layer, the transmission copper conductor, and the transmission copper sleeve. The shielding is performed in a multi-level manner, thereby ensuring the stability of the internal cable transmission and improving the transmission efficiency.

[0017] 2. In the utility model, the cable is protected by a fixed ring seat, a compression support ring, a tensile colloid support layer, a limiting notch, a polyurethane damping layer, and a second insulating adhesive layer, thereby improving the compression resistance of the cable itself, avoiding obstruction of power transmission caused by external extrusion of the internal cable, and further improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A layered cross-sectional view of a multi-shielded cable proposed by the utility model;

[0019] Figure 2 This is an external diagram of a tensile colloid support layer of a multi-shielded cable proposed by the utility model;

[0020] Figure 3 This is an internal diagram of a polyurethane damping layer of a multi-shielded cable proposed by the utility model;

[0021] Figure 4 The utility model is a diagram of a fixing ring seat mechanism of a multi-shielded cable.

[0022] Legend:

[0023] 1. Polyurethane damping layer; 2. Transmission copper sleeve; 3. Conveying copper conductor; 4. Cooling support layer; 5. First shielding layer; 6. First insulating adhesion layer; 7. Second shielding layer; 8. Second insulating adhesion layer; 9. Anti-tensile colloid support layer; 10. Fixed ring seat; 11. Anti-compression support ring; 12. Limiting notch; 13. Installation groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1 , an embodiment provided by the utility model: a multi-shielded cable, comprising a polyurethane damping layer 1, a conveying copper conductor 3 is arranged in the middle of the inner side of the polyurethane damping layer 1, a conveying copper conductor 3 is fixedly connected to the outside of the conveying copper conductor 3 with a conveying copper sleeve 2, a cooling support layer 4 is fixedly connected to the outside of the conveying copper sleeve 2, a tensile colloid support layer 9 is fixedly connected to the inner side of the polyurethane damping layer 1, a cooling support layer 4 is fixedly connected to the outside of the cooling support layer 4, a plurality of 10 are evenly fixedly connected to the outside of the tensile colloid support layer 9, a first insulating adhesive layer 6 is fixedly connected to the outside of the first insulating adhesive layer 6, a second shielding layer 7 is fixedly connected to the outside of the second shielding layer 7, a second insulating adhesive layer 8 is fixedly connected to the outside of the second insulating adhesive layer 8, the outside of the second insulating adhesive layer 8 is fixedly connected to the inner side of the tensile colloid support layer 9, the first shielding layer 5 is a metal braided shielding layer, and the second shielding layer 7 is a metal foil shielding;

[0026] When power is transmitted inside the cable, the power flows inside the transmission copper conductor 3. The transmission copper sleeve 2 separates the transmission copper conductor 3 from the cooling support layer 4 to ensure that the transmission copper conductor 3 can transport power smoothly. The cooling support layer 4 is a carbon fiber sheet material with excellent thermal conductivity and flexibility. When power is transmitted in a higher magnetic field environment, the external magnetic field contacts the outside of the polyurethane damping layer 1. The polyurethane damping layer is used to absorb electromagnetic interference and reduce noise, and the magnetic field is reduced to a certain extent. The magnetic field entering the polyurethane damping layer 1 contacts the second shielding layer 7 to further reduce the magnetic field. Continuous magnetic field interference may cause the magnetic field to enter the inside again and contact the first shielding layer 5. The metal braided shield is a mesh structure material made of fine wires, which can further perform electromagnetic shielding effects while maintaining high flexibility and scalability. Shielding is performed in a multi-level manner to ensure the stability of internal cable transmission and improve transmission efficiency.

[0027] Reference Figure 2 , Figure 3 and Figure 4 The outer side of the fixed ring seat 10 is provided with a mounting groove 13, the inner side of the mounting groove 13 is fixedly connected with a compression support ring 11, and the inner side of the polyurethane damping layer 1 is evenly provided with a plurality of limiting grooves 12 from top to bottom, and the outer sides of the compression support ring 11 are respectively correspondingly inserted into the inner sides of the limiting grooves 12;

[0028] During the installation process, the cable routing needs to be adjusted and the polyurethane damping layer 1 is bent. The position of the compression support ring 11 changes as the polyurethane damping layer 1 is bent. The external pressure that may be generated on the polyurethane damping layer 1 is offset by the multiple compression support rings 11. At the same time, the fixed ring seat 10 and the limiting groove 12 act simultaneously to confine the compression support ring 11 inside, thereby ensuring the stability of the support, improving the compression resistance of the cable itself, avoiding the obstruction of power transmission caused by external extrusion of the internal cable, and further improving stability.

[0029] Reference Figure 1 . The cooling support layer 4 is a carbon fiber sheet;

[0030] The heat generated by the transmission copper conductor 3 transmitting electricity will be transferred to the transmission copper sleeve 2, and then transferred to the inner side of the cooling support layer 4 through the transmission copper sleeve 2, thereby dissipating the heat and preventing the internal temperature from being too high.

[0031] Working principle: When power is transmitted inside the cable, electricity flows inside the transmission copper conductor 3. The transmission copper sleeve 2 separates the transmission copper conductor 3 from the cooling support layer 4 to ensure smooth power transmission by the transmission copper conductor 3. The cooling support layer 4 is a carbon fiber sheet material with excellent thermal conductivity and flexibility. The heat of the transmission copper conductor 3 transmitting electricity will be transferred to the transmission copper sleeve 2, and then transferred to the inner side of the cooling support layer 4 through the transmission copper sleeve 2, thereby extracting the heat and avoiding excessive internal temperature. When power is transmitted in a higher magnetic field environment, the external magnetic field contacts the outside of the polyurethane damping layer 1. The polyurethane damping layer is used to absorb electromagnetic interference and reduce noise, and the magnetic field is reduced to a certain extent. The magnetic field entering the polyurethane damping layer 1 contacts the second shielding layer 7. The magnetic field is further reduced. Continuous magnetic field interference may cause the magnetic field to re-enter the inside and contact the first shielding layer 5. The metal braided shield is a mesh structure material made of fine wires, which can further perform the electromagnetic shielding effect while maintaining high flexibility and scalability. The cable routing needs to be adjusted during installation. The polyurethane damping layer 1 is bent, and the position of the compressive support ring 11 changes with the bending of the polyurethane damping layer 1. The external pressure that may be generated on the polyurethane damping layer 1 is offset by multiple compressive support rings 11. At the same time, the fixed ring seat 10 and the limiting notch 12 act simultaneously to limit the compressive support ring 11 inside, thereby ensuring the stability of the support.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-shielded cable, comprising a polyurethane damping layer (1), characterized in that: A conveying copper conductor (3) is arranged in the middle of the inner side of the polyurethane damping layer (1); the outer side of the conveying copper conductor (3) is fixedly connected to a conveying copper sleeve (2); the outer side of the conveying copper sleeve (2) is fixedly connected to a cooling support layer (4); the inner side of the polyurethane damping layer (1) is fixedly connected to a tensile colloid support layer (9); the tensile colloid support layer (9) is connected to the cooling support layer (4) via multiple shielding components; the outer side of the tensile colloid support layer (9) is connected to the inner side of the polyurethane damping layer (1) via multiple supporting and compressive components.

2. A multi-shielded cable according to claim 1, characterized in that: The supporting and compressive-resistant components include fixed ring seats (10) uniformly arranged on the outside of the tensile-resistant colloid supporting layer (9), the outside of the fixed ring seats (10) are provided with mounting grooves (13), the inside of the mounting grooves (13) are fixedly connected with compressive-resistant supporting rings (11), and the inside of the polyurethane damping layer (1) is uniformly provided with a plurality of limiting notches (12) from top to bottom.

3. A multi-shielded cable according to claim 1, characterized in that: The multi-shielding component comprises a first shielding layer (5) located outside the cooling support layer (4), the first shielding layer (5) is fixedly connected to the outside with a first insulating adhesive layer (6), the first insulating adhesive layer (6) is fixedly connected to the outside with a second shielding layer (7), and the second shielding layer (7) is fixedly connected to the outside with a second insulating adhesive layer (8).

4. A multi-shielded cable according to claim 3, characterized in that: The outer side of the second insulating adhesive layer (8) is fixedly connected to the inner side of the tensile colloid support layer (9).

5. A multi-shielded cable according to claim 2, characterized in that: The exterior of the compression-resistant support ring (11) is correspondingly inserted into the interior of the limiting groove (12).

6. A multi-shielded cable according to claim 3, characterized in that: The first shielding layer (5) is a metal braided shielding layer.

7. A multi-shielded cable according to claim 3, characterized in that: The second shielding layer (7) is a metal foil shield.

8. The multi-shielded cable according to claim 1, characterized in that: The cooling support layer (4) is a carbon fiber sheet layer.

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