Anti-damage radio frequency coaxial cable with self-repairing sheath

By adding microcapsule repair agent to the sheath of the RF coaxial cable, the function of automatic repair when the cable surface is damaged is achieved, solving the leakage or short circuit problems caused by the cable being easily damaged, extending the cable life and reducing maintenance costs.

CN120165212APending Publication Date: 2025-06-17TONGDING INTERCONNECTION INFORMATION CO LTD
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Patent Information

Application Number
CN202510538286.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2025-06-17

AI Technical Summary

Technical Problem

Existing RF coaxial cables are prone to damage when used. If the skin sheath is not repaired in time, it is prone to leakage or short circuit, which may lead to accidents in serious cases.

Method used

A design with a self-repairing sheath is added to the sheath material. When the cable surface is scratched, the microcapsules rupture release the repair agent, automatically fill the cracks and restore insulation.

Benefits of technology

Extend the life of field deployment cables, reduce maintenance costs, and improve the safety and reliability of cables.

✦ Generated by Eureka AI based on patent content.

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Abstract

The anti-damage radio frequency coaxial cable comprises a cable body, an inner conductor and an outer conductor are positioned in the cable body, the outer conductor is located on the outer ring of the inner conductor, a polyethylene insulation sleeve is positioned on the outer wall of the cable body, and the polyethylene insulation sleeve is located on the outer ring of the outer conductor. An oxygen-free copper wire core sleeve is positioned on the outer wall of the polyethylene insulating sleeve, an aluminum foil shielding sleeve is positioned on the outer wall of the oxygen-free copper wire core sleeve, a copper braided sleeve is positioned on the outer wall of the aluminum foil shielding sleeve, a foaming insulating sleeve is positioned on the outer wall of the copper braided sleeve, and a self-repairing composite sheath is positioned on the outer wall of the foaming insulating sleeve. According to the anti-damage radio frequency coaxial cable with the self-repairing sheath, the microcapsule repairing agent is added into the sheath material, when the surface of the cable is scratched, capsules are broken to release the repairing agent, cracks are automatically filled, the insulativity is recovered, the service life of the cable deployed in the field is prolonged, and the maintenance cost is reduced.
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Description

Technical Field

[0001] The present invention relates to the technical field of cables, and particularly relates to an anti-damage radio frequency coaxial cable with a self-healing sheath. Background Art

[0002] An anti-damage radio frequency coaxial cable refers to a cable with two concentric conductors, and the conductor and the shielding layer share the same axis. The insulating material of the radio frequency coaxial cable is composed of physically foamed polyethylene isolating copper wire conductors. Outside the inner insulating material is another layer of annular conductor, namely the outer conductor. With the continuous development of technology, people's requirements for anti-damage radio frequency coaxial cables are also getting higher and higher.

[0003] Existing radio frequency coaxial cables have certain drawbacks when in use. First of all, existing radio frequency coaxial cables are prone to damage during use. When the skin sheath is damaged and not repaired in time, electric leakage is likely to occur, and in severe cases, it will cause the entire cable circuit to short-circuit, resulting in major accidents, which is not conducive to people's use. Moreover, the strength of existing radio frequency coaxial cables cannot well meet the requirements during use, bringing certain adverse effects to the use process of people. For this reason, we propose an anti-damage radio frequency coaxial cable with a self-healing sheath. Summary of the Invention

[0004] Technical Problem to be Solved: Aiming at the deficiencies of the prior art, the present invention provides an anti-damage radio frequency coaxial cable with a self-healing sheath. A microcapsule repair agent is added to the sheath material. When the cable surface is scratched, the capsules rupture and release the repair agent, automatically filling the cracks and restoring the insulation, extending the service life of the cable for field deployment and reducing the maintenance cost, which can effectively solve the problems in the background art.

[0005] Technical Solution: To achieve the above object, the technical solution adopted by the present invention is as follows: An anti-damage radio frequency coaxial cable with a self-healing sheath, including a cable main body. An inner conductor and an outer conductor are positioned inside the cable main body. The outer conductor is located on the outer circle of the inner conductor. A polyethylene insulating sleeve is positioned on the outer wall of the cable main body. An oxygen-free copper wire core sleeve is positioned on the outer wall of the polyethylene insulating sleeve. An aluminum foil shielding sleeve is positioned on the outer wall of the oxygen-free copper wire core sleeve. A copper braid sleeve is positioned on the outer wall of the aluminum foil shielding sleeve. A foamed insulating sleeve is positioned on the outer wall of the copper braid sleeve. A self-healing composite sheath is positioned on the outer wall of the foamed insulating sleeve. An inner PET protective sleeve, a repair agent channel and a wear-resistant sheath are arranged inside the self-healing composite sheath. Microcapsule repair agents are evenly distributed inside the repair agent channel. An attaching adhesive sleeve is positioned on the inner surface of the inner PET protective sleeve.

[0006] As a preferred technical solution of the present application, a conductor protective sleeve is positioned on the outer surface of the inner conductor, a conductor support sleeve is positioned on the outer surface of the outer conductor, a support frame is supported and positioned between the inner conductor, the outer conductor and the cable body, and a positioning point is positioned between the support frame and the cable body.

[0007] As a preferred technical solution of the present application, the conductor protective sleeve includes a polyurethane sleeve, a PVC sleeve, a glass fiber sleeve, a silica gel sleeve and a nylon wear-resistant sleeve. The silica gel sleeve is located on the surface of the nylon wear-resistant sleeve, the glass fiber sleeve is located on the surface of the silica gel sleeve, the PVC sleeve is located on the surface of the glass fiber sleeve, and the polyurethane sleeve is located on the surface of the PVC sleeve.

[0008] As a preferred technical solution of the present application, the cable body, the polyethylene insulation sleeve, the oxygen-free copper wire core sleeve, the aluminum foil shielding sleeve, the copper braid sleeve, the foamed insulation sleeve and the self-healing composite sheath are positioned by being coated with insulating glue.

[0009] As a preferred technical solution of the present application, the inner conductor and the conductor protective sleeve are coated and positioned, and the outer conductor and the conductor support sleeve are coated and positioned.

[0010] As a preferred technical solution of the present application, the cable body is supported and fixed with the conductor support sleeve and the conductor protective sleeve through the support frame, and the support frame and the cable body are fixed through the positioning point.

[0011] As a preferred technical solution of the present application, the attaching glue sleeve, the inner PET protective sleeve, the repair agent channel and the wear-resistant sheath are coated and positioned. The inner PET protective sleeve is adhered through the attaching glue sleeve. The microcapsule repair agent is filled inside the repair agent channel, and the microcapsule repair agent is polysiloxane.

[0012] As a preferred technical solution of the present application, the polyurethane sleeve, the PVC sleeve, the glass fiber sleeve, the silica gel sleeve and the nylon wear-resistant sleeve are positioned by being coated with strong glue.

[0013] Beneficial effects: Compared with the prior art, the present invention provides an anti-damage radio frequency coaxial cable with a self-healing sheath, having the following beneficial effects: In this anti-damage radio frequency coaxial cable with a self-healing sheath, a microcapsule repair agent is added to the sheath material. When the cable surface is scratched, the capsules break and release the repair agent, which automatically fills the cracks and restores the insulation, prolonging the service life of the cable in field deployment and reducing the maintenance cost. The inner conductor and the conductor protective sleeve are wrapped and positioned, and the outer conductor and the conductor support sleeve are wrapped and positioned. The cable body is supported and fixed to the conductor support sleeve and the conductor protective sleeve through a support frame. The support frame and the cable body are fixed through positioning points. The attaching rubber sleeve, the inner PET protective sleeve, the repair agent channel, and the wear-resistant sheath are wrapped and positioned. The inner PET protective sleeve is adhered through the attaching rubber sleeve. The microcapsule repair agent is filled inside the repair agent channel. The microcapsule repair agent is polysiloxane. The entire anti-damage radio frequency coaxial cable has a simple structure, is easy to operate, and has a better effect compared to the traditional method. Brief Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of an anti-damage radio frequency coaxial cable with a self-healing sheath according to the present invention.

[0015] Figure 2 It is a schematic diagram of the structure of the cable body in an anti-damage radio frequency coaxial cable with a self-healing sheath according to the present invention.

[0016] Figure 3 It is a schematic diagram of the enlarged view at A in an anti-damage radio frequency coaxial cable with a self-healing sheath according to the present invention.

[0017] Figure 4 It is a schematic diagram of the structure of the self-healing composite sheath in an anti-damage radio frequency coaxial cable with a self-healing sheath according to the present invention.

[0018] Figure 5 It is a schematic diagram of the structure of the conductor protective sleeve in an anti-damage radio frequency coaxial cable with a self-healing sheath according to the present invention.

[0019] In the figure: 1. Cable body; 2. Polyethylene insulation sleeve; 3. Aluminum foil shielding sleeve; 4. Foamed insulation sleeve; 5. Inner conductor; 6. Oxygen-free copper wire core sleeve; 7. Copper braid sleeve; 8. Self-healing composite sheath; 9. Outer conductor; 10. Positioning point; 11. Support frame; 12. Conductor support sleeve; 13. Conductor protective sleeve; 14. Attaching rubber sleeve; 15. Wear-resistant sheath; 16. Microcapsule repair agent; 17. Repair agent channel; 18. Inner PET protective sleeve; 19. Polyurethane sleeve; 20. PVC sleeve; 21. Glass fiber sleeve; 22. Silicone sleeve; 23. Nylon wear-resistant sleeve. Detailed Embodiment

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the following described embodiments are some embodiments of the present invention, rather than all embodiments, and are only used to illustrate the present invention and should not be construed as limiting the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention. For those conditions not specified in the embodiments, they are carried out according to the conventional conditions or the conditions recommended by the manufacturer. Those reagents or instruments not specified by the manufacturer can be obtained as conventional products through commercial purchase.

[0021] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 construed as limiting the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0023] Such as Figures 1-5As shown in the figure, an anti-damage radio frequency coaxial cable with a self-healing sheath includes a cable body 1. An inner conductor 5 and an outer conductor 9 are positioned inside the cable body 1. The outer conductor 9 is located on the outer circle of the inner conductor 5. A polyethylene insulating sleeve 2 is positioned on the outer wall of the cable body 1. An oxygen-free copper wire core sleeve 6 is positioned on the outer wall of the polyethylene insulating sleeve 2. An aluminum foil shielding sleeve 3 is positioned on the outer wall of the oxygen-free copper wire core sleeve 6. A copper braided sleeve 7 is positioned on the outer wall of the aluminum foil shielding sleeve 3. A foamed insulating sleeve 4 is positioned on the outer wall of the copper braided sleeve 7. A self-healing composite sheath 8 is positioned on the outer wall of the foamed insulating sleeve 4. An inner PET protective sleeve 18, a repair agent channel 17 and a wear-resistant sheath 15 are arranged inside the self-healing composite sheath 8. Microcapsule repair agents 16 are evenly distributed inside the repair agent channel 17. An adhesive sleeve 14 is positioned on the inner surface of the inner PET protective sleeve 18. Microcapsule repair agents are added to the sheath material. When the cable surface is scratched, the capsules rupture to release the repair agent, automatically filling the cracks and restoring the insulation, prolonging the life of the cable for field deployment and reducing the maintenance cost.

[0024] Furthermore, a conductor protective sleeve 13 is positioned on the outer surface of the inner conductor 5. A conductor support sleeve 12 is positioned on the outer surface of the outer conductor 9. A support frame 11 is positioned between the inner conductor 5, the outer conductor 9 and the cable body 1 for support and positioning. A positioning point 10 is positioned between the support frame 11 and the cable body 1.

[0025] Furthermore, the conductor protective sleeve 13 includes a polyurethane sleeve 19, a PVC sleeve 20, a glass fiber sleeve 21, a silica gel sleeve 22 and a nylon wear-resistant sleeve 23. The silica gel sleeve 22 is located on the surface of the nylon wear-resistant sleeve 23. The glass fiber sleeve 21 is located on the surface of the silica gel sleeve 22. The PVC sleeve 20 is located on the surface of the glass fiber sleeve 21. The polyurethane sleeve 19 is located on the surface of the PVC sleeve 20.

[0026] Furthermore, the cable body 1, the polyethylene insulating sleeve 2, the oxygen-free copper wire core sleeve 6, the aluminum foil shielding sleeve 3, the copper braided sleeve 7, the foamed insulating sleeve 4 and the self-healing composite sheath 8 are positioned by being coated with insulating glue.

[0027] Furthermore, the inner conductor 5 and the conductor protective sleeve 13 are positioned by being coated with material between them. The outer conductor 9 and the conductor support sleeve 12 are positioned by being coated with material between them.

[0028] Furthermore, the cable body 1 is supported and fixed with the conductor support sleeve 12 and the conductor protective sleeve 13 through the support frame 11. The support frame 11 and the cable body 1 are fixed through the positioning point 10.

[0029] Furthermore, the adhesive sleeve 14, the inner PET protective sleeve 18, the repair agent channel 17 and the wear-resistant sheath 15 are positioned by being coated with material. The inner PET protective sleeve 18 is adhered through the adhesive sleeve 14. The microcapsule repair agents 16 are filled inside the repair agent channel 17. The microcapsule repair agents 16 are polysiloxanes.

[0030] Furthermore, the polyurethane sleeve 19, PVC sleeve 20, fiberglass sleeve 21, silicone sleeve 22 and nylon wear-resistant sleeve 23 are positioned by being coated with strong glue.

[0031] Working principle: The present invention includes a cable main body 1, a polyethylene insulating sleeve 2, an aluminum foil shielding sleeve 3, a foamed insulating sleeve 4, an inner conductor 5, an oxygen-free copper wire core sleeve 6, a copper braided sleeve 7, a self-healing composite sheath 8, an outer conductor 9, positioning points 10, a support frame 11, a conductor support sleeve 12, a conductor protection sleeve 13, an adhesive sleeve 14, a wear-resistant sheath 15, a microcapsule repair agent 16, a repair agent channel 17, an inner PET protection sleeve 18, a polyurethane sleeve 19, a PVC sleeve 20, a fiberglass sleeve 21, a silicone sleeve 22, and a nylon wear-resistant sleeve 23. The inner conductor 5 and the conductor protection sleeve 13 are positioned by being coated. The outer conductor 9 and the conductor support sleeve 12 are positioned by being coated. The cable main body 1 and the conductor support sleeve 12 and the conductor protection sleeve 13 are supported and fixed by the support frame 11. The support frame 11 and the cable main body 1 are fixed by the positioning points 10. The adhesive sleeve 14, the inner PET protection sleeve 18, the repair agent channel 17 and the wear-resistant sheath 15 are positioned by being coated. The inner PET protection sleeve 18 is adhered by the adhesive sleeve 14. The microcapsule repair agent 16 is filled inside the repair agent channel 17. The microcapsule repair agent 16 is polysiloxane. The microcapsule repair agent is added to the sheath material. When the surface of the cable is scratched, the capsules rupture to release the repair agent, automatically filling the cracks and restoring the insulation, extending the life of the cable for field deployment and reducing the maintenance cost.

[0032] It should be noted that in this text, relational terms such as first and second (No. 1, No. 2) are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A damage-resistant radio frequency coaxial cable with a self-repairing sheath, comprising a cable body (1), characterized in that: An inner conductor (5) and an outer conductor (9) are positioned inside the cable body (1), the outer conductor (9) is located at the outer ring of the inner conductor (5), a polyethylene insulation sleeve (2) is positioned on the outer wall of the cable body (1), an oxygen-free copper wire core sleeve (6) is positioned on the outer wall of the polyethylene insulation sleeve (2), an aluminum foil shielding sleeve (3) is positioned on the outer wall of the oxygen-free copper wire core sleeve (6), a copper braided sleeve (7) is positioned on the outer wall of the aluminum foil shielding sleeve (3), a foamed insulation sleeve (4) is positioned on the outer wall of the copper braided sleeve (7), a self-repairing composite sleeve (8) is positioned on the outer wall of the foamed insulation sleeve (4), an inner PET protective sleeve (18), a repair agent channel (17) and a wear-resistant sleeve (15) are arranged inside the self-repairing composite sleeve (8), a microcapsule repair agent (16) is evenly arranged inside the repair agent channel (17), and an attached rubber sleeve (14) is positioned on the inner surface of the inner PET protective sleeve (18).

2. The damage-resistant radio frequency coaxial cable with a self-repairing sheath according to claim 1, characterized in that: A conductor protective sleeve (13) is positioned on the outer surface of the inner conductor (5), a conductor support sleeve (12) is positioned on the outer surface of the outer conductor (9), a support frame (11) is positioned between the inner conductor (5), the outer conductor (9) and the cable body (1), and a positioning point (10) is positioned between the support frame (11) and the cable body (1).

3. The damage-resistant radio frequency coaxial cable with a self-repairing sheath according to claim 1, characterized in that: The conductor protection sleeve (13) comprises a polyurethane sleeve (19), a PVC sleeve (20), a glass fiber sleeve (21), a silicone sleeve (22) and a nylon wear-resistant sleeve (23), wherein the silicone sleeve (22) is located on the surface of the nylon wear-resistant sleeve (23), the glass fiber sleeve (21) is located on the surface of the silicone sleeve (22), the PVC sleeve (20) is located on the surface of the glass fiber sleeve (21), and the polyurethane sleeve (19) is located on the surface of the PVC sleeve (20).

4. The damage-resistant radio frequency coaxial cable with a self-repairing sheath according to claim 1, characterized in that: The cable body (1), the polyethylene insulating sleeve (2), the oxygen-free copper wire core sleeve (6), the aluminum foil shielding sleeve (3), the copper braided sleeve (7), the foamed insulating sleeve (4) and the self-repairing composite sheath (8) are positioned by insulating glue coating.

5. The damage-resistant radio frequency coaxial cable with a self-repairing sheath according to claim 2, characterized in that: The inner conductor (5) is wrapped and positioned with the conductor protection sleeve (13), and the outer conductor (9) is wrapped and positioned with the conductor support sleeve (12).

6. The damage-resistant radio frequency coaxial cable with a self-repairing sheath according to claim 2, characterized in that: The cable body (1) and the conductor support sleeve (12) and the conductor protective sleeve (13) are supported and fixed by a support frame (11), and the support frame (11) and the cable body (1) are fixed by a positioning point (10).

7. The damage-resistant radio frequency coaxial cable with a self-repairing sheath according to claim 1, characterized in that: The attached rubber sleeve (14), the inner PET protective sleeve (18), the repair agent channel (17) and the wear-resistant sleeve (15) are covered and positioned, the inner PET protective sleeve (18) is attached by the attached rubber sleeve (14), and the microcapsule repair agent (16) is filled in the repair agent channel (17), and the microcapsule repair agent (16) is polysiloxane.

8. The damage-resistant radio frequency coaxial cable with a self-repairing sheath according to claim 3, characterized in that: The polyurethane sleeve (19), the PVC sleeve (20), the glass fiber sleeve (21), the silicone sleeve (22) and the nylon wear-resistant sleeve (23) are positioned by coating with strong glue.