Bending-resistant flexible cable
By hierarchizing the structure inside the cable and combining multiple materials, the existing cables are solved inadequate transmission attenuation and fire-proof and water-resistance capabilities in outdoors, and a cable design that is resistant to bending flexibility, low cost and low maintenance is achieved, and the use is extended. Lifespan and improved performance.
Patent Information
- Application Number
- CN202420664094.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-02
AI Technical Summary
The existing cables have severe transmission attenuation in harsh outdoor scenarios, insufficient bending and fire-proof and water-retardant capabilities, and high-strength structure communication cables are costly and have high maintenance costs.
A flexible cable with bending resistance was designed, by setting a flame retardant layer, a waterproof layer, a sheath, a reinforcement layer, a bending resistance layer, a buffer layer, an insulating layer, a magnetic shielding layer, a shielding layer, a temperature control layer and a conductor inside the cable , and evenly set the bending steel wire in the anti-bending layer, fill the conductors with rubber insulating particles, and set the sponge pad between the inner wall of the sheath and the reinforcement layer, and apply high-temperature glue between the flame retardant layer and the waterproof layer.
It improves the bending resistance, fire and waterproof performance and durability of the cable, reduces maintenance costs, extends service life, and enhances the conductivity efficiency and temperature control capabilities of the conductor.
Smart Images
Figure CN222260577U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cable equipment, in particular to a bending-resistant flexible cable. Background Art
[0002] Cables are usually made up of several or several groups of wires (at least two in each group) twisted together. Depending on the usage scenario, the cable has different emphases on its performance. Its performance is mainly divided into mechanical properties and thermal properties. When both mechanical and thermal properties are good, the versatility of the cable can be greatly improved. Mechanical properties mainly refer to tensile strength, elongation, bendability, elasticity, softness, etc. Tensile (tensile strength, elongation) performance is generally achieved through its steel strands and armor layers.
[0003] In actual use, the internal structure of many cables is relatively simple, mainly consisting of an outer sheath and an inner core, resulting in poor bending, fire and water resistance, and severe transmission attenuation in harsh outdoor scenes. Some high-strength structured communication cables are expensive, with high cost pressure and subsequent maintenance investment. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] In view of the shortcomings of the existing technology, the utility model provides a bending-resistant flexible cable, which has the advantages of low cost, fireproof and waterproof, strong bending resistance and flexibility, good quality, long service life, low maintenance cost, etc., and solves the above technical problems.
[0006] (II) Technical solution
[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a bending-resistant flexible cable, comprising a cable body, a flame-retardant layer is arranged on the inner wall of the cable body, a waterproof layer is arranged on the inner wall of the flame-retardant layer, a sheath is arranged on the inner wall of the waterproof layer, a reinforcement layer is arranged on the inner wall of the sheath, an anti-bending layer is arranged on the inner wall of the reinforcement layer, a buffer layer is arranged on the inner wall of the anti-bending layer, an insulating layer is arranged on the inner wall of the buffer layer, a magnetic shielding layer is arranged on the inner wall of the insulating layer, a shielding layer is arranged on the inner wall of the magnetic shielding layer, a temperature control layer is arranged on the inner wall of the shielding layer, and a conductor is arranged on the inner wall of the temperature control layer.
[0008] Preferably, anti-bending steel wires are arranged inside the anti-bending layer, and a plurality of the anti-bending steel wires are arranged evenly inside the anti-bending layer.
[0009] Through the above technical scheme, the anti-bending steel wires can provide additional strength and rigidity and enhance the bending resistance of the cable. They can share the externally applied pressure and force to prevent breakage or damage when the cable is bent. By evenly arranging the anti-bending steel wires inside the anti-bending layer, a balanced distribution of force can be achieved, local stress concentration can be reduced, and the flexibility and stability of the entire cable can be improved. The anti-bending steel wires can effectively resist external stress and impact, such as extrusion, flattening or stretching, protect the internal conductor and insulation layer from damage, and extend the service life of the cable.
[0010] Preferably, a plurality of rubber insulating particles are filled between the conductor and the temperature control layer, and the sizes of the rubber insulating particles are unequal.
[0011] Through the above technical solution, the rubber insulating particles have good thermal insulation properties and can effectively reduce heat conduction. Filling particles of different sizes can form a discontinuous heat conduction path, thereby reducing the heat transfer rate and achieving better temperature control. Due to the irregular size and shape of the rubber insulating particles, the gaps after filling can adapt to the shape and bending of the cable, thereby improving the durability and bending resistance of the cable.
[0012] Preferably, the conductor is formed by bundling three or more wires of the same diameter, and the wires are tightly fitted together.
[0013] Through the above technical solution, due to the close fit between the wires, the effective conductive cross-sectional area of the conductor is increased, the resistance is reduced, the energy loss is reduced, and the current transmission efficiency is improved. By tightly matching and fitting multiple strands of wires, the flexibility and bending performance of the conductor are enhanced, which makes the conductor easier to bend and install, and adapt to various complex wiring environments. The close fit between the wires can reduce the gaps and friction between the wires, reduce the internal stress concentration between the wires, reduce the breakage and wear of the wires, and extend the service life of the conductor.
[0014] Preferably, a sponge pad is arranged between the inner wall of the sheath and the reinforcement layer, and a plurality of raised particles are arranged on the surface of the sponge pad.
[0015] Through the above technical solution, the sponge pad can fill the gap between the inner wall and the reinforcement layer to make them fit together better. The raised particles can increase the contact area, further improve the fitting performance, and prevent movement and relative sliding between layers. The sponge pad can absorb and reduce the conducted noise caused by external vibration and impact. It can reduce the contact area between the sheath and the reinforcement layer, thereby reducing the transmission and diffusion of noise and providing a quieter working environment.
[0016] Preferably, a layer of high temperature glue is applied between the flame retardant layer and the waterproof layer, and the high temperature glue is evenly applied on the surface of the waterproof layer and glued to the flame retardant layer.
[0017] Through the above technical scheme, the high temperature glue has good high temperature resistance, effectively prevents the influence of high temperature on the cable, can withstand heat conduction and heat radiation in high temperature environment, reduces the damage of temperature to the internal structure and materials of the cable, and improves the high temperature resistance of the cable. The high temperature glue can glue the flame retardant layer and the waterproof layer together to form a firm bond, prevent loosening and detachment between the layers, increase the overall strength and stability of the cable, and after the high temperature glue is applied between the flame retardant layer and the waterproof layer, it can fill and close potential pores and gaps, thereby improving the flame retardant properties of the cable.
[0018] Compared with the prior art, the utility model provides a bending-resistant flexible cable, which has the following beneficial effects:
[0019] 1. The utility model can provide additional strength and rigidity through the anti-bending steel wires to enhance the anti-bending performance of the cable. They can share the pressure and force applied from the outside to prevent breakage or damage when the cable is bent. By evenly arranging the anti-bending steel wires inside the anti-bending layer, a balanced distribution of force can be achieved, local stress concentration can be reduced, and the flexibility and stability of the entire cable can be improved. The anti-bending steel wires can effectively resist external stress and impact, such as extrusion, flattening or stretching, protect the internal conductor and insulation layer from damage, and extend the service life of the cable.
[0020] 2. The utility model has good thermal insulation performance through rubber insulating particles, which can effectively reduce heat conduction. Filling particles of different sizes can form a discontinuous heat conduction path, thereby reducing the heat transfer rate and achieving better temperature control. Due to the irregular size and shape of the rubber insulating particles, the gaps after filling can adapt to the shape and bending of the cable, thereby improving the durability and bending resistance of the cable. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;
[0022] Figure 2 It is a left side schematic diagram of the structure of the utility model;
[0023] Figure 3 The utility model structure Figure 2 AA section diagram.
[0024] Among them: 1. Cable body; 2. Flame retardant layer; 3. Waterproof layer; 4. Sheath; 5. Strengthening layer; 6. Anti-bending layer; 7. Buffer layer; 8. Insulation layer; 9. Magnetic shielding layer; 10. Shielding layer; 11. Temperature control layer; 12. Conductor; 13. Anti-bending steel wire; 14. Rubber insulation particles; 15. Sponge pad; 16. High-temperature glue. DETAILED DESCRIPTION
[0025] 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.
[0026] See also Figure 1-3 A bending-resistant flexible cable comprises a cable body 1, a flame-retardant layer 2 is arranged on the inner wall of the cable body 1, a waterproof layer 3 is arranged on the inner wall of the flame-retardant layer 2, a sheath 4 is arranged on the inner wall of the waterproof layer 3, a reinforcement layer 5 is arranged on the inner wall of the sheath 4, an anti-bending layer 6 is arranged on the inner wall of the reinforcement layer 5, a buffer layer 7 is arranged on the inner wall of the anti-bending layer 6, an insulating layer 8 is arranged on the inner wall of the buffer layer 7, a magnetic shielding layer 9 is arranged on the inner wall of the insulating layer 8, a shielding layer 10 is arranged on the inner wall of the magnetic shielding layer 9, a temperature control layer 11 is arranged on the inner wall of the shielding layer 10, and a conductor 12 is arranged on the inner wall of the temperature control layer 11.
[0027] Specifically, the anti-bending steel wires 13 are arranged inside the anti-bending layer 6, and a plurality of anti-bending steel wires 13 are arranged and evenly arranged inside the anti-bending layer 6. The advantages are that the anti-bending steel wires 13 can provide additional strength and rigidity, enhance the anti-bending performance of the cable, and can share the pressure and force applied from the outside to prevent the cable from breaking or being damaged when it is bent. By evenly arranging the anti-bending steel wires 13 inside the anti-bending layer 6, a balanced distribution of force can be achieved, local stress concentration can be reduced, and the flexibility and stability of the entire cable can be improved. The anti-bending steel wires 13 can effectively resist external stress and impact, such as extrusion, flattening or stretching, protect the internal conductor 12 and the insulating layer 8 from damage, and extend the service life of the cable.
[0028] Specifically, a plurality of rubber insulating particles 14 are filled between the conductor 12 and the temperature control layer 11, and the sizes of the rubber insulating particles 14 are all unequal. The advantage is that the rubber insulating particles 14 have good thermal insulation performance, which can effectively reduce heat conduction, and filling particles of different sizes can form a discontinuous heat conduction path, thereby reducing the heat transfer speed and achieving better temperature control. In addition, due to the irregular size and shape of the rubber insulating particles 14, the gaps after filling can adapt to the shape and bending of the cable, thereby improving the durability and bending resistance of the cable.
[0029] Specifically, the conductor 12 is formed by bundling three or more wires of the same diameter, and the wires are tightly fitted. The advantage is that due to the tight fit between the wires, the effective conductive cross-sectional area of the conductor 12 is increased, the resistance is reduced, the energy loss is reduced, and the current transmission efficiency is improved. By bundling and fitting the multiple wires tightly, the flexibility and bending performance of the conductor 12 are enhanced, which makes the conductor 12 easier to bend and install, and adapt to various complex wiring environments. The tight fit between the wires can reduce the gaps and friction between the wires, reduce the internal stress concentration between the wires, reduce the breakage and wear of the wires, and extend the service life of the conductor 12.
[0030] Specifically, a layer of sponge pad 15 is arranged between the inner wall of the sheath 4 and the reinforcement layer 5, and a plurality of raised particles are arranged on the surface of the sponge pad 15. The advantages are that the sponge pad 15 can fill the gap between the inner wall and the reinforcement layer, so that they fit together better, the raised particles can increase the contact area, further improve the fitting performance, prevent the movement and relative sliding between the layers, and the sponge pad 15 can absorb and reduce the conducted noise caused by external vibration and impact, and it can reduce the contact area between the sheath and the reinforcement layer, thereby reducing the transmission and diffusion of noise, and providing a quieter working environment.
[0031] Specifically, a layer of high temperature glue 16 is applied between the flame retardant layer 2 and the waterproof layer 3, and the high temperature glue 16 is evenly applied on the surface of the waterproof layer 3 and is bonded to the flame retardant layer 2. The advantage is that the high temperature glue 16 has good high temperature resistance, effectively prevents the influence of high temperature on the cable, can withstand heat conduction and heat radiation in a high temperature environment, reduces the damage of temperature to the internal structure and materials of the cable, and improves the high temperature resistance of the cable. The high temperature glue 16 can bond the flame retardant layer 2 and the waterproof layer 3 together to form a strong bond, prevent loosening and detachment between the layers, increase the overall strength and stability of the cable, and after the high temperature glue 16 is applied between the flame retardant layer 2 and the waterproof layer 3, it can fill and close potential pores and gaps, and improve the flame retardant performance of the cable.
[0032] When in use, a bending-resistant flexible cable has a flame retardant layer 2 on the inner wall of a cable body 1, a waterproof layer 3 on the inner wall of the flame retardant layer 2, and a layer of high-temperature glue 16 is applied between the flame retardant layer 2 and the waterproof layer 3. The high-temperature glue 16 has good high-temperature resistance, effectively prevents the influence of high temperature on the cable, can withstand heat conduction and heat radiation in a high-temperature environment, and reduces the damage of temperature to the internal structure and materials of the cable. A sheath 4 is provided on the inner wall of the waterproof layer 3, a reinforcement layer 5 is provided on the inner wall of the sheath 4, and a sponge pad 15 is provided between the inner wall of the sheath 4 and the reinforcement layer 5, and a plurality of raised particles are provided on the surface of the sponge pad 15, the sponge pad 15 can fill the gap between the inner wall and the reinforcement layer to make them fit together better, the raised particles can increase the contact area, further improve the fitting performance, and prevent movement and relative sliding between layers, an anti-bending layer 6 is provided on the inner wall of the reinforcement layer 5, and an anti-bending steel wire 13 is provided inside the anti-bending layer 6, The anti-bending steel wire 13 can provide additional strength and rigidity and enhance the anti-bending performance of the cable. A buffer layer 7 is arranged on the inner wall of the anti-bending layer 6, an insulating layer 8 is arranged on the inner wall of the buffer layer 7, a magnetic shielding layer 9 is arranged on the inner wall of the insulating layer 8, a shielding layer 10 is arranged on the inner wall of the magnetic shielding layer 9, a temperature control layer 11 is arranged on the inner wall of the shielding layer 10, a conductor 12 is arranged on the inner wall of the temperature control layer 11, and a plurality of rubber insulating particles 14 are filled between the conductor 12 and the temperature control layer 11. The rubber insulating particles 14 are of unequal sizes. The rubber insulating particles 14 have good thermal insulation properties and can effectively reduce heat conduction. Filling particles of different sizes can form a discontinuous heat conduction path, thereby reducing the heat transfer rate and achieving better temperature control. Due to the irregular size and shape of the rubber insulating particles 14, the filled gaps can adapt to the shape and bending of the cable, thereby improving the durability and anti-bending performance of the cable.
[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A bending-resistant flexible cable, comprising a cable body (1), characterized in that: The inner wall of the cable body (1) is provided with a flame retardant layer (2), the inner wall of the flame retardant layer (2) is provided with a waterproof layer (3), the inner wall of the waterproof layer (3) is provided with a sheath (4), the inner wall of the sheath (4) is provided with a reinforcement layer (5), the inner wall of the reinforcement layer (5) is provided with an anti-bending layer (6), the inner wall of the anti-bending layer (6) is provided with a buffer layer (7), the inner wall of the buffer layer (7) is provided with an insulating layer (8), the inner wall of the insulating layer (8) is provided with a magnetic shielding layer (9), the inner wall of the magnetic shielding layer (9) is provided with a shielding layer (10), the inner wall of the shielding layer (10) is provided with a temperature control layer (11), and the inner wall of the temperature control layer (11) is provided with a conductor (12).
2. The anti-bending flexible cable according to claim 1, characterized in that: Anti-bending steel wires (13) are arranged inside the anti-bending layer (6); a plurality of anti-bending steel wires (13) are arranged and are evenly arranged inside the anti-bending layer (6).
3. The anti-bending flexible cable according to claim 1, characterized in that: A plurality of rubber insulating particles (14) are filled between the conductor (12) and the temperature control layer (11), and the sizes of the rubber insulating particles (14) are all unequal.
4. The anti-bending flexible cable according to claim 1, characterized in that: The conductor (12) is formed by combining three or more wires of the same diameter, and the wires are tightly fitted together.
5. The anti-bending flexible cable according to claim 1, characterized in that: A layer of sponge pad (15) is arranged between the inner wall of the sheath (4) and the strengthening layer (5), and a plurality of protruding particles are arranged on the surface of the sponge pad (15).
6. The anti-bending flexible cable according to claim 1, characterized in that: A layer of high temperature glue (16) is applied between the flame retardant layer (2) and the waterproof layer (3); the high temperature glue (16) is evenly applied on the surface of the waterproof layer (3) and is glued to the flame retardant layer (2).