Robot cable

By using a layered structure and cable connection ring design, the problem of connection and repair when robot cables are accidentally damaged is solved, achieving the effects of rapid connection and extended service life.

CN223978186UActive Publication Date: 2026-03-06ZHEJIANG QIAOYANG WIRE & CABLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing robot cables are costly to manufacture and lack quick-connect structures when accidentally damaged, making maintenance inconvenient.

Method used

It adopts a layered structure design, including an outer sheath, a shielding layer, an inner sheath, tensile elements, core wire insulation, and conductors. Cable connectors are installed at both ends, and the connectors are sealed with EPDM material to ensure quick connection and convenient maintenance.

Benefits of technology

It can quickly connect in case of accidental cable damage, meets waterproof and dustproof sealing requirements, extends service life and simplifies the maintenance process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223978186U_ABST
Patent Text Reader

Abstract

The utility model discloses a robot cable, and belongs to the field of robot cables. Comprising an outer sheath, a shielding layer is arranged in the outer sheath, an inner sheath is arranged in the shielding layer, a tensile element is arranged in the inner sheath, a plurality of core wire insulators are annularly arranged in the tensile element, a plurality of conductors are arranged in the core wire insulators in a matrix mode, and the conductors are arranged in the outer sheath. The robot cable further comprises cable connecting rings, the cable connecting rings are arranged on the outer side surfaces of the left end and the right end of the outer sheath, sealing rings special for the cable are adopted in the cable connecting rings, the two robot cables can be conveniently connected with each other, and the sealing rings special for the cable are made of EODM materials. The robot cable has the beneficial effects that the robot cable is high in material quality, the cable can be quickly connected together to continue to be used for a short time when the cable is accidentally damaged by adopting the sealing ring special for the cable, and subsequent maintenance is facilitated.
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Description

Technical Field

[0001] This application relates to the field of robot cables, and more specifically, to a robot cable. Background Technology

[0002] Robot cables are essential as the economy and science and technology advance, and the process of industrial intelligence accelerates. Industrial robots are widely used in many fields, such as automobile manufacturing, electronic equipment production, and food processing. In these production scenarios, robots need to perform complex actions and tasks, placing increasingly higher demands on the performance of cables. They must not only stably transmit power and signals but also adapt to frequent bending, twisting, and other mechanical movements.

[0003] The structure of the product can be referenced from a torsion-resistant data shielded robot cable disclosed in Chinese patent document CN222260582U.

[0004] The above structure suffers from high material costs, low quality, and a lack of interconnection mechanisms for multiple cables. Using cable-specific sealing rings allows for quick connection of cables for short-term use in the event of accidental damage, facilitating subsequent maintenance. However, this also results in high material costs, low quality, and a lack of interconnection mechanisms for multiple cables.

[0005] Currently, there is no robot cable that uses high-quality materials and a special cable sealing ring that allows for quick connection and continued short-term use when the cable is accidentally damaged, facilitating subsequent maintenance. Utility Model Content

[0006] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0007] To address the technical problems mentioned in the background section above, some embodiments of this application provide a robot cable, comprising: an outer sheath, a shielding layer inside the outer sheath, an inner sheath inside the shielding layer, a tensile element inside the inner sheath, a plurality of core wire insulation arranged in a ring shape inside the tensile element, and a plurality of conductors arranged in a matrix shape inside the core wire insulation.

[0008] The robot cable also includes a cable connecting ring, which is disposed on the outer surface of the left and right ends of the outer sheath. The inside of the cable connecting ring is a cable-specific sealing ring, which facilitates the interconnection of two robot cables. The cable-specific sealing ring is made of EODM material.

[0009] During operation or installation, the cable connection ring structure allows for quick connection of cables for continued short-term use in the event of accidental damage, facilitating subsequent maintenance.

[0010] Furthermore, the outer sheath covers the outer surface of the shielding layer, and the shielding layer covers the outer surface of the inner sheath.

[0011] Furthermore, the outer sheath is composed of highly flexible and flexurally resistant materials, high-temperature resistant materials, and wear-resistant and high-strength materials.

[0012] Furthermore, the shielding layer uses an aluminum-plastic composite tape wrapped around the outside of the core unit in a single layer. The thickness of the aluminum-plastic composite tape is 0.05mm-0.1mm, and the wrapping overlap rate is 30%-50%. The shielding braided mesh uses tinned copper wire with a diameter of 0.13mm, a braiding pitch of 35±2mm, and a copper wire braiding layer coverage density of 85%-90%.

[0013] Furthermore, the inner sheath is composed of heat-resistant materials, highly elastic materials, and composite materials.

[0014] Furthermore, all the conductors are wound up and insulated inside the core wires, and the multiple core wires are stranded and insulated inside the tensile element.

[0015] Furthermore, the stranding method of the core wire insulation is as follows: the cable stranding structure is wound around a stable tensile center with the optimal interlacing pitch, starting from multiple core wires, and is stranded in a bundled manner.

[0016] Furthermore, the tensile element is basalt continuous fiber, and the conductor is made of Class VI soft copper wire reinforced with basalt continuous fiber. It has excellent resistance to bending fatigue, tensile strength and torsion, so that the cable is more resistant to bending, tensile strength and torsion while ensuring ultra-flexibility. In addition, basalt continuous fiber has the characteristics of high strength and high modulus, heat insulation, high temperature resistance, oxidation resistance, radiation resistance, corrosion resistance, low water absorption and permanent flame retardancy.

[0017] Furthermore, the core wire insulation uses TPE thermoplastic elastomer as the insulation layer, which has good insulation effect, as well as the characteristics of softness, bending resistance, and wear resistance. It can adapt to the frequent movement of robots under different working conditions and complex usage environments, and together with the inner and outer sheaths, it forms a multi-protection function, extending the service life of the cable.

[0018] Furthermore, the conductor is often made of graphene-copper composite material, which combines 3D graphene with copper by adding a certain proportion of 3D graphene to the copper alloy and modifying its surface by doping, such as doping with nano-copper clusters, nano-silver clusters, single-atom copper, single-atom silver, etc.

[0019] The beneficial effects of this application are: it provides a robot cable with high material quality, which uses a cable-specific sealing ring to allow the cable to be quickly connected together for continued short-term use when it is accidentally damaged, thus facilitating subsequent maintenance.

[0020] The cable's internal structure is layered, consisting of an outer sheath, a shielding layer, an inner sheath, tensile elements, core insulation, and conductors. The materials used in each layer are improved, and cable connectors are installed at both ends. These connectors are rubber sealing rings made of EPDM material, which has good elasticity, aging resistance, and weather resistance, adapting to various environmental conditions. The EPDM cable sealing rings protect the wires and cables passing through the panel, providing a waterproof and dustproof seal, meeting IP67 standards, withstanding vibration, and are easy to assemble. They are normally used for sealing cable connections, ensuring insulation and waterproofing at the joints. In the event of accidental cable damage, they can be quickly connected for short-term continued use, facilitating subsequent maintenance. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0022] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0023] In the attached diagram:

[0024] Figure 1 This is an overall plan view according to an embodiment of this application;

[0025] Figure 2 This is a structural diagram of a part of the embodiment, mainly showing the cable connection ring structure;

[0026] Figure 3 This is a structural schematic diagram as part of an embodiment, mainly showing the core wire insulation and conductor structure;

[0027] Figure 4 This is a structural schematic diagram of a part of an embodiment, mainly showing the inner sheath structure;

[0028] Figure 5 This is a structural schematic diagram of a part of an embodiment, mainly showing the shielding layer structure;

[0029] Figure 6 This is a structural schematic diagram of a part of an embodiment, mainly showing the outer sheath structure.

[0030] Figure label:

[0031] 1. Outer sheath; 2. Shielding layer; 3. Inner sheath; 4. Tensile element; 5. Core wire insulation; 6. Conductor; 7. Cable connector. Detailed Implementation

[0032] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0033] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0034] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0035] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0036] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] As a preferred embodiment of this example, Figures 1-6As shown, the robot cable includes an outer sheath 1, an inner shielding layer 2, an inner sheath 3, a tensile element 4, and several core wire insulations 5 arranged in a ring shape inside the tensile element 4. Several conductors 6 are arranged in a matrix inside the core wire insulations 5. The robot cable also includes a cable connecting ring 7, which is located on the outer surfaces of the left and right ends of the outer sheath 1. The cable connecting ring 7 uses a cable-specific sealing ring inside to facilitate the connection of two robot cables. The cable-specific sealing ring is made of EODM material. The outer sheath 1 covers the outer surface of the shielding layer 2. The shielding layer 2 covers the outer surface of the inner sheath 3. The outer sheath 1 is composed of highly flexible and bend-resistant materials, high-temperature resistant materials, and wear-resistant and high-strength materials. The shielding layer 2 uses a single-layer overlapping aluminum-plastic composite tape wrapped around the outside of the core unit. The thickness of the aluminum-plastic composite tape is 0.05mm-0.1mm, and the wrapping overlap rate is 30%-50%. The shielding braided mesh uses tin-plated copper wire with a diameter of 0.13mm, a braiding pitch of 35±2mm, and a copper wire braiding layer coverage density of 85%-90%. The inner sheath 3 is composed of heat-resistant materials, highly elastic materials, and composite materials. All conductors 6 are wound together and installed with the core. Inside the wire insulation 5, multiple core wires are stranded and arranged inside the tensile element 4. The stranding method of the core wire insulation 5 is as follows: the cable stranded structure is wound around a stable tensile center with an optimal interleaving pitch, starting from multiple core wires and using a bundled stranding method. The tensile element 4 is made of basalt continuous fiber, using Category VI soft copper wire reinforced with basalt continuous fiber as the conductor, which has excellent resistance to bending fatigue, tension and torsion. This makes the cable more resistant to bending, tension and torsion while ensuring ultra-flexibility. In addition, basalt continuous fiber has high strength and high modulus, heat insulation, high temperature resistance, oxidation resistance and radiation resistance. With properties such as corrosion resistance, low water absorption, and permanent flame retardancy, the core wire insulation 5 uses TPE thermoplastic elastomer as the insulation layer, which has a good insulation effect. It also has the characteristics of softness, bending resistance, and wear resistance, which can adapt to the frequent movement of robots under different working conditions and complex usage environments. Together with the inner and outer sheaths, it forms a multi-layer protection effect and extends the service life of the cable. The conductor 6 mostly uses graphene composite copper material, which combines 3D graphene with copper. This is achieved by adding a certain proportion of 3D graphene to the copper alloy and modifying its surface by doping, such as doping with nano copper clusters, nano silver clusters, single-atom copper, and single-atom silver.

[0038] The high flexibility and bending resistance materials, high temperature resistance materials, and wear-resistant and high strength materials in the outer sheath 1 are as follows: High flexibility and bending resistance material combination: The outer sheath layer is made of a mixture of PVC resin, nitrile rubber powder, polyolefin thermoplastic elastomer and other materials, achieving an optimized balance of flexibility, bending resistance, mechanical strength and environmental adaptability. High temperature resistance material combination: For high temperature scenarios such as spot welding of robotic arms, cable sheath material made of TPU as the base resin and with added temperature-resistant additives is used. The temperature-resistant additives are made by reacting macromolecular diols, heat-resistant diamines and diisocyanates, which can improve the high temperature resistance of the cable sheath material. Wear-resistant and high strength material combination: The outer sheath is made of extruded ultra-wear-resistant and flame-retardant TPU material, and has an internal basalt continuous fiber material reinforcement skeleton, which enhances the wear resistance and tensile strength of the outer sheath.

[0039] The inner sheath 3 utilizes heat-resistant materials, high-elasticity materials, and composite materials, respectively: Heat-resistant material combination: High-temperature resistant thermoplastic elastomers such as TPU (thermoplastic polyurethane elastomer) are used, with added heat-resistant additives, significantly improving its high-temperature resistance to meet the needs of robots operating in high-temperature environments, such as for spot welding cables near robot arms. High-elasticity material combination: Rubber or elastomer alloys are used, maintaining good performance during repeated bending and stretching, reducing the risk of sheath breakage and damage to the internal cable core. Composite material combination: Materials with different properties are combined to form an inner sheath 3 with multiple functions, such as adding glass fiber or carbon fiber reinforcements to polyurethane elastomers to improve the strength and torsional resistance of the inner sheath while maintaining its flexibility.

[0040] The cable's internal structure is divided into three layers: outer sheath 1, shielding layer 2, inner sheath 3, tensile element 4, core wire insulation 5, and conductor 6. The materials used in each layer are improved, and cable connection rings 7 are installed at both ends of the cable. These cable connection rings 7 are rubber sealing rings made of EPDM material, possessing excellent elasticity, aging resistance, and weather resistance, adapting to various environmental conditions. The EPDM material cable sealing rings protect the wires and cables passing through the panel, providing a waterproof and dustproof seal, meeting IP67 standards, withstanding vibration, and are easy to assemble. They are normally used for sealing cable connections, ensuring the insulation and waterproof performance of the joint. In the event of accidental cable damage, they can be quickly connected for short-term continued use, facilitating subsequent maintenance.

[0041] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A robotic cable, comprising: The outer sheath (1) is characterized in that the inner part of the outer sheath (1) is provided with a shielding layer (2), the inner part of the shielding layer (2) is provided with an inner sheath (3), the inner part of the inner sheath (3) is provided with a tensile element (4), the inner part of the tensile element (4) is provided with a plurality of core wire insulations (5) in a ring shape, and the inner part of the core wire insulation (5) is provided with a plurality of conductors (6) in a matrix form. The robot cable further comprises a cable connecting ring (7) arranged on the outer side surface of the left and right ends of the outer sheath (1), and the inner part of the cable connecting ring (7) is provided with a cable special sealing ring, which facilitates the mutual connection of two robot cables, and the cable special sealing ring is made of EODM material.

2. The robotic cable of claim 1, wherein: The outer sheath (1) covers the outer side surface of the shielding layer (2), and the shielding layer (2) covers the outer side surface of the inner sheath (3).

3. The robotic cable of claim 1, wherein: The outer sheath (1) is made of high flexibility and bending resistance material, high temperature resistant material and wear resistant and high strength material.

4. The robotic cable of claim 1, wherein: The shielding layer (2) is made of aluminum plastic composite tape single layer overlapping wrapping on the outer side of the core unit, the thickness of the aluminum plastic composite tape is 0.05-0.1mm, the wrapping overlapping rate is 30%-50%, the shielding woven mesh is made of tin-plated copper wire with a diameter of 0.13mm, the weaving pitch is 35±2mm, and the copper wire weaving layer covering density is 85%-90%.

5. The robotic cable of claim 1, wherein: The inner sheath (3) is made of temperature resistant material, high elasticity material and composite material.

6. The robotic cable of claim 1, wherein: All the conductors (6) are arranged in the inner part of the core wire insulation (5) in a roll, and the plurality of core wire insulations (5) are arranged in the inner part of the tensile element (4) in a stranded manner.

7. The robotic cable of claim 1, wherein: The stranded manner of the core wire insulation (5) is that the cable stranded structure is wound around a stable tensile center with the best interlaced pitch, and a plurality of core wires are used in a bundled and stranded manner.

8. The robotic cable of claim 1, wherein: The tensile element (4) is basalt continuous fiber.

9. The robotic cable of claim 1, wherein: The core wire insulation (5) uses TPE thermoplastic elastomer as an insulation layer.

Citation Information

Patent Citations

  • Anti-torsion data shielding robot cable

    CN222260582U