Flexible break-resistant composite cable

Abstract

The utility model relates to cable technical field, concretely, it relates to bendable anti -break composite cable, including cable core, cable core is twisted by multiple conductor, and the outside of cable core is equipped with insulating layer, and the inside of insulating layer is provided with multiple anti -break fine wire that is annular and equally spaced arrangement, and anti -break fine wire is along the length direction of cable and is arranged, and the outside of insulating layer is provided with shielding layer, and the outside of shielding layer is provided with buffer layer, and the outside of buffer layer is provided with reinforcing layer, and the outside of reinforcing layer is provided with outer sheath, and the central position of cable core is provided with helical rubber support piece that is spiral, the utility model has good bendable performance and anti -break performance, and it is beneficial to prolong service life.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and more specifically, to a bendable and break-resistant composite cable. Background Technology

[0002] With the rapid development of modern technology, cables are being used more and more widely in various fields, and the requirements for cable performance are also increasing. In many practical application scenarios, such as the internal wiring of intelligent robots, the connection cables of wearable electronic devices, and the wiring of some industrial equipment that needs to move and bend frequently, cables must not only have good conductivity, but also excellent flexibility and anti-breakage ability.

[0003] Patent CN110580978A discloses a composite cable, including an outer sheath containing a cable cavity. Cable cores are housed within the cable cavity, and one or more sealing rings are movably mounted on the outside of each core. Each sealing ring has a core hole in its center, through which the cable core passes. The outer wall of the sealing ring is in sealing contact with the inner wall of the cable cavity. Each sealing ring has one or more protruding parts fixedly disposed on one side. These protruding parts expand upon drawing in external air and push a sealing ring on one side to seal any damage to the outer sheath. This composite cable can quickly draw in air after damage to achieve automatic sealing. The different cable cores do not interfere with each other; any damage can be sealed at the corresponding location using a sealing ring, achieving self-repair.

[0004] Although this technical solution can achieve self-repair by sealing the corresponding location with a sealing ring when a damage occurs, traditional composite cables still have certain limitations in terms of flexibility. Traditional composite cables lack a stable bending and breakage-resistant structure inside. When the cable is frequently bent, the internal conductors are prone to metal fatigue due to repeated stress, leading to conductor breakage and affecting the normal use of the cable. For example, in some industrial automated production lines that require long-term and frequent bending, the service life of traditional cables is often short and they need to be replaced frequently. This not only increases maintenance costs but also affects production efficiency due to downtime for maintenance.

[0005] Meanwhile, the existing cables also need improvement in their fracture resistance. When subjected to significant external forces or accidental impacts, the cable's insulation layer and internal conductors are easily damaged, leading to short circuits or open circuits and causing safety accidents. For example, at construction sites, cables may be damaged by being crushed by heavy objects or pulled by construction machinery, causing numerous inconveniences and safety hazards to construction. Therefore, developing a composite cable with strong flexibility and excellent fracture resistance is of significant practical importance. Utility Model Content

[0006] The purpose of this invention is to provide a flexible and break-resistant composite cable to address the deficiencies mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A flexible, break-resistant composite cable includes a cable core composed of multiple stranded conductors. An insulation layer is provided on the outside of the cable core. Multiple break-resistant filaments arranged in a ring at equal intervals are disposed within the insulation layer, with the break-resistant filaments extending along the length of the cable. A shielding layer is disposed outside the insulation layer, a buffer layer is disposed outside the shielding layer, a reinforcing layer is disposed outside the buffer layer, and an outer sheath is disposed outside the reinforcing layer. A spiral rubber support is disposed at the center of the cable core.

[0009] Preferably, the conductor is made of multiple strands of metal wire twisted together, and the outer diameter of the metal wire is between 0.05 mm and 0.1 mm.

[0010] Preferably, a base material filling layer is provided between the cable core and the insulation layer, and the base material filling layer wraps around the outside of the conductor;

[0011] This feature allows the outer layer of the cable core to be filled and protected using a base material filling layer, providing insulation and compressive support.

[0012] Preferably, the thickness of the insulating layer is between 0.5 mm and 1 mm, the shielding layer is a metal braided mesh structure, and the braiding density of the shielding layer is 80% to 90%.

[0013] Preferably, the thickness of the buffer layer is between 1mm and 2mm, and the reinforcing layer is an aramid fiber woven mesh structure.

[0014] Preferably, the thickness of the outer sheath is between 1.5mm and 2.5mm, and an outer wear-resistant layer is provided on the outer surface of the outer sheath.

[0015] Preferably, the spiral rubber support is a spiral rubber rod structure, and the outer diameter of the spiral rubber support is between 1mm and 2mm.

[0016] Preferably, the anti-fracture filament is a carbon fiber columnar structure, and the outer diameter of the anti-fracture filament is between 0.01 mm and 0.03 mm.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model, by setting a conductor made of multiple strands of fine metal wires twisted together, and combining it with a spiral rubber support in the center of the cable core, effectively disperses the stress during the bending process of the cable. This makes the internal conductor less prone to breakage due to metal fatigue when the cable is frequently bent, achieving excellent bendability and meeting the needs of intelligent robots, industrial equipment and other applications that require frequent bending of cables.

[0019] 2. This utility model, by setting carbon fiber anti-breakage filaments arranged in a ring at equal intervals in the insulation layer, combined with a reinforcing layer woven from aramid fibers, achieves the effect that when the cable is subjected to external force pulling or impact, the high-strength material bears most of the external force, protecting the internal conductors and insulation layer from damage, thus significantly enhancing the cable's anti-breakage performance and reducing the risk of short circuits and open circuits.

[0020] 3. This utility model fills and protects the cable core by setting a base material filling layer, and in conjunction with an insulation layer, shielding layer, buffer layer and outer sheath of a specific thickness, it achieves insulation, pressure resistance, electromagnetic shielding, buffer energy absorption and wear and weather resistance protection for the cable, thereby comprehensively improving the overall performance of the cable and extending its service life. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 This is a partial structural schematic diagram of the present invention;

[0024] The meanings of the labels in the diagram are as follows:

[0025] 1. Cable core; 10. Conductor; 101. Metal wire; 11. Base material filling layer; 12. Insulation layer; 121. Anti-breakage filament; 13. Shielding layer; 14. Buffer layer; 15. Reinforcing layer; 16. Outer sheath; 161. Outer abrasion-resistant layer;

[0026] 2. Spiral rubber support component. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0028] Please see Figures 1-3This utility model provides a technical solution: a bendable and breakable composite cable, including a cable core 1, which is formed by stranding multiple conductors 10. An insulation layer 12 is provided on the outside of the cable core 1. Multiple breakable filaments 121 arranged in a ring at equal intervals are disposed within the insulation layer 12, and the breakable filaments 121 are arranged along the length of the cable. A shielding layer 13 is disposed outside the insulation layer 12, a buffer layer 14 is disposed outside the shielding layer 13, a reinforcing layer 15 is disposed outside the buffer layer 14, and an outer sheath is disposed outside the reinforcing layer 15. 16. A spiral rubber support 2 is provided at the center of the cable core 1, which provides stable auxiliary support for the cable during bending, effectively reducing the stress on the conductor 10 inside the cable core 1, and improving the cable's flexibility and resistance to bending fatigue. The spiral rubber support 2 is a spiral rubber rod structure with an outer diameter between 1mm and 2mm. When the cable is bent, the spiral rubber support 2 can play an auxiliary support role, making the bending of the cable smoother, while reducing the stress on the conductor inside the cable core.

[0029] like Figure 1 and Figure 2 As shown, the conductor 10 is made of multiple strands of metal wire 101 twisted together. The outer diameter of the metal wire 101 is between 0.05mm and 0.1mm, which enables the conductor to have good conductivity and can also disperse stress through the sliding between the metal wires when frequently bent, thus preventing breakage due to metal fatigue.

[0030] like Figure 2 As shown, a base material filling layer 11 is provided between the cable core 1 and the insulation layer 12. The base material filling layer 11 wraps around the outside of the conductor 10, so that the cable core 1 is filled and protected. This not only enhances the insulation performance of the cable, but also effectively resists external pressure and plays a role in pressure resistance and support.

[0031] In this embodiment, the thickness of the insulation layer 12 is between 0.5mm and 1mm. The insulation layer 12 can be made of silicone material with high flexibility and good insulation performance, which can effectively prevent leakage of the cable core and also play a buffering role when the cable is bent, reducing friction between conductors. The shielding layer 13 is a metal braided mesh structure with a braiding density of 80% to 90%, which enables the cable to effectively prevent leakage and shield external electromagnetic interference, ensuring stable transmission of internal signals.

[0032] Specifically, the thickness of the buffer layer 14 is between 1mm and 2mm. The buffer layer 14 can be made of polyurethane foam material, which can absorb and disperse energy when the cable is subjected to external impact or bending, protecting the internal structure from damage. The reinforcing layer 15 is an aramid fiber braided mesh structure. The reinforcing layer 15 can be made of aramid fiber. Aramid fiber has the characteristics of high strength and high modulus, which can significantly improve the tensile strength and bending fatigue resistance of the cable, preventing the cable from breaking under stress. When the cable is subjected to external impact, the buffer layer 14 can absorb and disperse energy, while the reinforcing layer 15 provides high-strength support, jointly protecting the internal structure of the cable from damage.

[0033] Furthermore, the thickness of the outer sheath 16 is between 1.5mm and 2.5mm. The outer sheath 16 can be made of thermoplastic elastomer material with wear resistance and weather resistance, which can effectively protect the internal structure of the cable from external environmental erosion and mechanical damage. An outer wear-resistant layer 161 is provided on the outer surface of the outer sheath 16, which gives the cable good wear resistance and weather resistance, effectively resists external environmental erosion and mechanical damage, and extends the service life of the cable.

[0034] In addition, the anti-breakage filament 121 has a carbon fiber columnar structure with an outer diameter between 0.01mm and 0.03mm. When the cable is subjected to external force, these high-strength anti-breakage filaments 121 can bear part of the tensile force, significantly improving the cable's anti-breakage capability.

[0035] When the flexible and breakable composite cable of this utility model is used and connected to the equipment, the conductor 10 in the cable core 1 is made of multiple strands of metal wire 101 twisted together, which can ensure good conductivity and provide a stable path for current transmission after electrical connection with the equipment. The base material filling layer 11 fills and protects the cable core 1, enhancing insulation and compressive strength. The insulation layer 12 wraps the cable core 1, and the breakable filaments 121 inside are arranged in a ring at equal intervals. When the cable is stretched, the breakable filaments 121 bear the tension and prevent the cable from breaking. At the same time, the insulation layer 12 also prevents the cable core 1 from leaking current.

[0036] During signal transmission, the metal braided mesh structure of the shielding layer 13 effectively shields external electromagnetic interference and ensures signal stability. When the cable is subjected to external impact or bending, the buffer layer 14 absorbs and disperses energy, and the aramid fiber braided mesh of the reinforcing layer 15 provides high-strength support. The two work together to protect the internal structure. The spiral rubber support 2 is located at the center of the cable core 1 and provides auxiliary support when the cable is bent, reducing the stress on the conductor 10 and ensuring smooth bending. The outer sheath 16 and its outer wear-resistant layer 161 can resist external environmental erosion and mechanical damage, ensuring long-term stable use of the cable.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. Bendable break-resistant composite cable comprising a cable core (1), characterized in that: The cable core (1) is made of multiple conductors (10) twisted together. An insulation layer (12) is provided on the outside of the cable core (1). Multiple anti-breakage filaments (121) are arranged in a ring at equal intervals inside the insulation layer (12). The anti-breakage filaments (121) are arranged along the length of the cable. A shielding layer (13) is provided on the outside of the insulation layer (12). A buffer layer (14) is provided on the outside of the shielding layer (13). A reinforcing layer (15) is provided on the outside of the buffer layer (14). An outer sheath (16) is provided on the outside of the reinforcing layer (15). A spiral rubber support (2) is provided at the center of the cable core (1).

2. The bendable kink resistant composite cable of claim 1, wherein: The conductor (10) is made of multiple strands of metal wire (101) twisted together, and the outer diameter of the metal wire (101) is between 0.05 mm and 0.1 mm.

3. The bendable kink resistant composite cable of claim 1, wherein: A base material filling layer (11) is provided between the cable core (1) and the insulation layer (12), and the base material filling layer (11) wraps around the outside of the conductor (10).

4. The bendable kink resistant composite cable of claim 1, wherein: The thickness of the insulating layer (12) is between 0.5 mm and 1 mm, and the shielding layer (13) is a metal braided mesh structure with a braiding density of 80% to 90%.

5. The bendable, kink-resistant composite cable of claim 1, wherein: The thickness of the buffer layer (14) is between 1 mm and 2 mm, and the reinforcing layer (15) is an aramid fiber woven mesh structure.

6. The bendable, kink-resistant composite cable of claim 1, wherein: The outer sheath (16) has a thickness of 1.5mm to 2.5mm, and an outer wear-resistant layer (161) is provided on the outer surface of the outer sheath (16).

7. The bendable, kink-resistant composite cable of claim 1, wherein: The spiral rubber support (2) is a spiral rubber rod structure, and the outer diameter of the spiral rubber support (2) is between 1mm and 2mm.

8. The bendable and break-resistant composite cable according to claim 1, characterized in that: The anti-fracture filament (121) is a carbon fiber columnar structure, and the outer diameter of the anti-fracture filament (121) is between 0.01mm and 0.03mm.

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