High-voltage-resistant elastic cable

By using an inner and outer tube structure and a multi-layer protective layer design, the problems of poor high-voltage resistance and easy deformation of cables are solved, achieving the effects of high-voltage resistance, deformation prevention, waterproofing, electromagnetic interference prevention, and extended service life.

CN223770852UActive Publication Date: 2026-01-06NINGBO ZHIHENG CABLE CO LTD
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Patent Information

Application Number
CN202520270914.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2026-01-06
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

Cables are easily subjected to external pressure during use, have poor high-voltage resistance, are prone to deformation, and have a limited service life.

Method used

It adopts an inner and outer tube structure. The inner tube is filled with elastic particles and balls. An elastic block is fixedly connected between the outer tube and the inner tube. An elastic sleeve and protective layer are set on the outside of the outer tube. A heat insulation, insulation and anti-interference layer is set between the inner and outer tubes. A waterproof, wear-resistant and anti-corrosion coating is applied to the outside of the outer tube.

Benefits of technology

It improves the high voltage resistance of the cable, prevents deformation, enhances the service life of the cable, reduces electromagnetic interference and signal radiation, prevents water infiltration, and extends the service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223770852U_ABST
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Abstract

The utility model relates to the technical field of cables, and discloses a high-voltage-resistant elastic cable, which comprises an inner tube, cable cores are arranged in the inner tube, an outer tube is arranged outside the inner tube, elastic balls are arranged among the cable cores, and elastic blocks are fixedly connected between the inner tube and the outer tube. According to the high-voltage-resistant elastic cable, the elastic ball, the elastic sleeve and the elastic block are arranged, the elastic block not only can fix the inner pipe and the outer pipe, but also has elasticity, and when the outer pipe is extruded by external force to be sunken, the elastic sleeve and the elastic block can enable the sunken part to rebound through the elasticity of the elastic sleeve and the elastic block; according to the high-voltage-resistant cable, the inner tube is arranged in the inner tube, so that the high-voltage-resistant performance of the cable can be improved, deformation of the high-voltage-resistant cable during use is prevented, the elastic particles and the elastic balls can further protect the cable core in the inner tube, and the problems that the high-voltage-resistant performance of the cable is poor, the service life of the cable is easily affected, and the cable is easily deformed are solved.
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Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a high-voltage resistant elastic cable. Background Technology

[0002] Cables are basic products used to transmit electrical (magnetic) energy, transmit information, realize electromagnetic energy conversion, and form automated control circuits. They can be defined as an assembly consisting of one or more insulated wire cores and their respective possible sheaths. Cables vary in type and performance, and users can choose the appropriate cable according to their own needs.

[0003] Common cables also have some problems, such as: cables are easily squeezed by external forces when in use, cables have poor high voltage resistance, which can affect the service life of cables, and cables are prone to deformation.

[0004] Therefore, we propose a high-voltage resistant flexible cable to improve upon the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a high-voltage resistant elastic cable to solve the problems mentioned in the background art, such as poor high-voltage resistance, which easily affects the service life of the cable and the cable being prone to deformation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-voltage resistant elastic cable, comprising an inner tube, a cable core disposed inside the inner tube, an outer tube disposed outside the inner tube, elastic balls disposed between the cable cores, elastic particles filling the spaces between the elastic balls, an elastic block fixedly connected between the inner tube and the outer tube, and an elastic sleeve disposed on the inner sidewall of the outer tube.

[0007] As a further technical solution of this utility model, the cable core is provided with six sets, and the elastic particles and elastic balls are filled inside the inner tube.

[0008] As a further technical solution of this utility model, multiple sets of elastic blocks are provided, and the elastic blocks are distributed in a ring at equal intervals between the inner tube and the outer tube.

[0009] As a further technical solution of this utility model, the outer wall of the inner tube is provided with a heat insulation layer, the outer wall of the heat insulation layer is provided with an insulation layer, the outer wall of the insulation layer is provided with an anti-interference layer, and the insulation layer is disposed between the heat insulation layer and the anti-interference layer.

[0010] As a further technical solution of this utility model, a protective layer is provided on the outer wall of the outer tube, a wear-resistant and corrosion-resistant coating is provided inside the protective layer, an epoxy resin composite material coating is provided inside the wear-resistant and corrosion-resistant coating, and a waterproof coating is provided inside the epoxy resin composite material coating.

[0011] As a further technical solution of this utility model, the epoxy resin composite material coating is disposed between the waterproof coating and the wear-resistant and anti-corrosion coating, and the waterproof coating, the epoxy resin composite material coating and the wear-resistant and anti-corrosion coating are respectively coated on the outside of the outer tube.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the high-voltage resistant elastic cable not only improves the high-voltage resistance performance and prevents external weather from affecting the cable core, but also increases the service life of the outer tube;

[0013] By incorporating elastic particles, elastic balls, elastic sleeves, and elastic blocks, the elastic blocks not only fix the inner and outer tubes but also possess elasticity. When the outer tube is compressed by external force, causing it to dent, the elastic sleeves and elastic blocks can rebound the dented area through their own elasticity, thereby increasing the high-voltage resistance of the cable and preventing deformation during high-voltage use. The elastic particles and elastic balls can further protect the cable core inside the inner tube.

[0014] By incorporating a heat insulation layer, an insulating layer, and an anti-interference layer, the insulating layer isolates the conductor of the cable from other related conductors and the external environment, ensuring that current can be effectively transmitted along the conductor and preventing current leakage into the external environment. The anti-interference layer reduces the degree of electromagnetic interference to the internal signal of the cable and also prevents the internal signal of the cable from radiating outward and causing electromagnetic interference. The heat insulation layer prevents the external temperature from affecting the use of the cable core.

[0015] By incorporating a waterproof coating, an epoxy resin composite coating, a wear-resistant and corrosion-resistant coating, and a protective layer, the wear-resistant and corrosion-resistant coating and epoxy resin composite coating inside the protective layer can increase the wear resistance of the outer tube and prevent wear caused by long-term use. The waterproof coating can prevent external water from seeping into the interior of the inner tube and affecting the use of the cable core inside the inner tube, thereby increasing the service life of the cable. Attached Figure Description

[0016] Figure 1 This is a frontal cross-sectional view of the present invention.

[0017] Figure 2 This is a partial enlarged cross-sectional view of the outer tube of this utility model.

[0018] Figure 3This is a magnified structural diagram of a partial cross-section of the inner tube of this utility model from the front view;

[0019] Figure 4 For the present utility model Figure 1 Enlarged cross-sectional view of point A in the middle.

[0020] In the diagram: 1. Inner tube; 2. Cable core; 3. Elastic particles; 4. Elastic ball; 5. Heat insulation layer; 6. Insulation layer; 7. Anti-interference layer; 8. Elastic sleeve; 9. Outer tube; 10. Waterproof coating; 11. Epoxy resin composite coating; 12. Wear-resistant and anti-corrosion coating; 13. Protective layer; 14. Elastic block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 The present invention provides an embodiment of a high-voltage resistant elastic cable, comprising an inner tube 1, a cable core 2 disposed inside the inner tube 1, an outer tube 9 disposed outside the inner tube 1, elastic balls 4 disposed between the cable cores 2, elastic particles 3 filling the spaces between the elastic balls 4, an elastic block 14 fixedly connected between the inner tube 1 and the outer tube 9, and an elastic sleeve 8 disposed on the inner side wall of the outer tube 9.

[0023] The cable core 2 is provided with six sets of elastic particles 3 and elastic balls 4 filling the interior of the inner tube 1. Multiple sets of elastic blocks 14 are provided, and the elastic blocks 14 are distributed in a ring at equal intervals between the inner tube 1 and the outer tube 9.

[0024] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, the elastic block 14 can not only fix the inner tube 1 and the outer tube 9, but also has its own elasticity. When the outer tube 9 is squeezed by external force and dented, the elastic sleeve 8 and the elastic block 14 can rebound the dented area through their own elasticity, thereby increasing the high voltage resistance of the cable and preventing deformation during high voltage use. The elastic particles 3 and the elastic ball 4 can further protect the cable core 2 inside the inner tube 1.

[0025] The outer wall of the inner tube 1 is provided with a heat insulation layer 5, the outer wall of the heat insulation layer 5 is provided with an insulation layer 6, the outer wall of the insulation layer 6 is provided with an anti-interference layer 7, and the insulation layer 6 is disposed between the heat insulation layer 5 and the anti-interference layer 7.

[0026] Specifically, such as Figure 1 and Figure 3 As shown, the insulation layer 6 can isolate the conductor part of the cable from other related conductors and the external environment to ensure that the current can be effectively transmitted along the conductor and prevent the current from leaking into the external environment. The anti-interference layer 7 can reduce the degree of external electromagnetic interference to the internal signal of the cable, and also prevent the internal signal of the cable from radiating outward and causing electromagnetic interference. The heat insulation layer 5 can prevent the external temperature from affecting the use of the cable core 2.

[0027] The outer wall of the outer tube 9 is provided with a protective layer 13, the inner side of the protective layer 13 is provided with a wear-resistant and anti-corrosion coating 12, the inner side of the wear-resistant and anti-corrosion coating 12 is provided with an epoxy resin composite material coating 11, the inner side of the epoxy resin composite material coating 11 is provided with a waterproof coating 10, the epoxy resin composite material coating 11 is disposed between the waterproof coating 10 and the wear-resistant and anti-corrosion coating 12, and the waterproof coating 10, the epoxy resin composite material coating 11 and the wear-resistant and anti-corrosion coating 12 are respectively coated on the outer side of the outer tube 9;

[0028] Specifically, such as Figure 2 As shown, the wear-resistant and corrosion-resistant coating 12 and epoxy resin composite coating 11 inside the protective layer 13 can increase the wear resistance of the outer tube 9 and prevent wear caused by long-term use of the outer tube 9. The waterproof coating 10 can prevent external water from seeping into the interior of the inner tube 1 and affecting the use of the cable core 2 inside the inner tube 1, thereby increasing the service life of the cable.

[0029] Working Principle: In use, the insulation layer 6 isolates the cable conductor from other conductors and the external environment, ensuring efficient current transmission and preventing leakage. The anti-interference layer 7 reduces electromagnetic interference to the cable's internal signals and prevents signal radiation, thus preventing electromagnetic interference. The heat insulation layer 5 protects the cable core 2 from external temperature fluctuations. The wear-resistant and corrosion-resistant coating 12 and epoxy resin composite coating 11 inside the protective layer 13 increase the wear resistance of the outer tube 9, preventing damage to the outer tube. 9. Long-term use leads to wear and tear. The waterproof coating 10 can prevent external water from seeping into the inner tube 1 and affecting the use of the cable core 2 inside the inner tube 1, thereby increasing the service life of the cable. The elastic block 14 can not only fix the inner tube 1 and the outer tube 9, but also has its own elasticity. When the outer tube 9 is squeezed by external force and dented, the elastic sleeve 8 and the elastic block 14 can rebound the dented area through their own elasticity, thereby increasing the high voltage resistance of the cable and preventing deformation during high voltage use. The elastic particles 3 and the elastic ball 4 can further protect the cable core 2 inside the inner tube 1.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high pressure resistant flexible electrical cable comprising an inner tube (1), characterized in that: The inner tube (1) is internally provided with cable cores (2), the outer tube (1) is externally provided with an outer tube (9), the cable cores (2) are provided with elastic balls (4) between them, the elastic balls (4) are filled with elastic particles (3) between them, the inner tube (1) and the outer tube (9) are fixedly connected with elastic blocks (14), and the inner side wall of the outer tube (9) is provided with an elastic sleeve (8).

2. A high pressure resistant flexible electrical cable according to claim 1, characterized in that: The cable core (2) is provided with six groups, and the elastic particles (3) and the elastic balls (4) are filled in the inner tube (1).

3. A high pressure resistant flexible electrical cable according to claim 1, characterized in that: The elastic block (14) is provided with a plurality of groups, and the elastic block (14) is annularly and equidistantly distributed between the inner tube (1) and the outer tube (9).

4. A high pressure resistant flexible electrical cable according to claim 1, characterized in that: The outer side wall of the inner tube (1) is provided with a heat insulation layer (5), the outer side wall of the heat insulation layer (5) is provided with an insulation layer (6), the outer side wall of the insulation layer (6) is provided with an anti-interference layer (7), and the insulation layer (6) is arranged between the heat insulation layer (5) and the anti-interference layer (7).

5. A high pressure resistant flexible electrical cable according to claim 1, characterized in that: The outer side wall of the outer tube (9) is provided with a protective layer (13), the inside of the protective layer (13) is provided with a wear-resistant anticorrosive coating (12), the inside of the wear-resistant anticorrosive coating (12) is provided with an epoxy resin composite coating (11), and the inside of the epoxy resin composite coating (11) is provided with a waterproof coating (10).

6. A high pressure resistant flexible electrical cable according to claim 5, characterized in that: The epoxy resin composite coating (11) is arranged between the waterproof coating (10) and the wear-resistant anticorrosive coating (12), and the waterproof coating (10), the epoxy resin composite coating (11) and the wear-resistant anticorrosive coating (12) are respectively coated on the outside of the outer tube (9).