Connection cord for robots

CN224668445UActive Publication Date: 2026-08-21DONGGUAN LIUCHUAN ELECTRONICS TECH
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Patent Information

Application Number
CN202521912242.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-04
Publication Date
2026-08-21
Estimated Expiration
2035-09-04

AI Technical Summary

Technical Problem

[0003]机器人一般由执行机构、驱动装置、检测装置和控制系统和复杂机械等组成,执行机构即机器人本体,其臂部一般采用空间开链连杆机构,其中的运动副(转动副或移动副)常称为关节,关节个数通常即为机器人的自由度数,在关节上会设置有线缆以用于在动态环境下连接机器人与控制系统,机器人关节的频繁活动时该线缆会被拉动弯折,而机器人线缆是机器人的重要零部件,但是,机器人线缆大多使用的是一般的连接线缆,无法提供更好的柔韧性和抗弯折能力

Benefits of technology

[0012]本实用新型与现有技术相比具有明显的优点和有益效果,具体而言,由上述技术方案可知,其主要是通过将导体采用若干根镀锡铜丝和位于若干根镀锡铜丝间的缠绕导体绞合而成,使其能够提高芯线的柔韧性、抗拉性及抗弯折能力,并将外被层采用TPE制成,从而使线材整体提升了耐磨性、柔韧性、抗拉性及抗弯折能力,提升了产品的可靠性和使用寿命,通过铝箔层形成的屏蔽层与缠绕导体编织而成的编织层的结合设计,使其既有良好屏蔽性稳定信号又增加了线材整体的柔韧性,具备较强的屏蔽效果,提升了抗干扰能力,以及,将第一绝缘层采用ETFE制成,能够大幅度提升线材的耐磨性与绞距的稳定性,更好的满足信号的稳定传输,且将两根芯线相互绞合后被包覆于第二绝缘层内以形成导线,能够提高抗拉能力。

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Abstract

The utility model discloses a kind of connecting lines for robot, including wire rod, the wire rod includes several core wires, shielding layer, braiding layer and outer covering layer, the shielding layer is covered in all core wires outside, the braiding layer is covered in shielding layer outside, the outer covering layer is covered in braiding layer outside, the shielding layer is aluminum foil layer, the braiding layer is woven from winding conductor, the material of outer covering layer is TPE, the core wire includes conductor and the first insulating layer covered in conductor outside, the material of first insulating layer is ETFE, the conductor is several tin-plated copper wires and the winding conductor stranded in several tin-plated copper wires, two core wires are twisted after being covered in second insulating layer to form wire;Whereby, it improves flexibility, tensile resistance and bending resistance, with stronger shielding effect, improves anti-interference capability.
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Description

Technical Field

[0001] This utility model relates to the field of robot wiring technology, and in particular to a connecting wire for robots. Background Technology

[0002] Robots are a common term for automated machines, which include all machines that mimic human behavior or thought, as well as those that mimic other living beings (such as robotic dogs and robotic cats). In a narrower sense, there are many classifications and controversies surrounding the definition of robots, and some computer programs are even referred to as robots. In modern industry, a robot refers to an artificial machine device capable of automatically performing tasks to replace or assist human workers. The ideal, highly realistic robot is a product of advanced integrated cybernetics, mechatronics, computer science and artificial intelligence, materials science, and bionics; the scientific community is currently researching and developing in this direction.

[0003] Robots are generally composed of actuators, drive units, detection devices, control systems, and complex mechanics. The actuator is the robot body, and its arm usually adopts a spatial open-chain linkage mechanism. The kinematic pairs (revolute joints or prismatic joints) in the mechanism are often called joints. The number of joints is usually the robot's degrees of freedom. Cables are installed on the joints to connect the robot to the control system in dynamic environments. When the robot joints move frequently, the cables will be pulled and bent. Robot cables are important components of the robot. However, most robot cables use ordinary connecting cables, which cannot provide better flexibility and bending resistance.

[0004] Therefore, a new technology needs to be developed to solve the above problems. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide a connecting cable for robots that improves flexibility, tensile strength and bending resistance, has a strong shielding effect, and enhances anti-interference ability.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A connecting cable for robots includes a wire comprising several core wires, a shielding layer, a braided layer, and an outer sheath. The shielding layer covers all the core wires, the braided layer covers the shielding layer, and the outer sheath covers the braided layer. The shielding layer is an aluminum foil layer, the braided layer is formed by winding a conductor, and the outer sheath is made of TPE. Each core wire includes a conductor and a first insulating layer covering the conductor. The first insulating layer is made of ETFE. The conductor is formed by twisting several tinned copper wires and a winding conductor located between the several tinned copper wires. Two core wires are twisted together and then covered within a second insulating layer to form a conductor.

[0008] As a preferred embodiment, a filler is provided between the conductor and the shielding layer.

[0009] As a preferred embodiment, the filler is two strands of nylon filament, and several of the wires are twisted together with the two strands of nylon filament.

[0010] As a preferred embodiment, the core wires are provided with four wires, and correspondingly, the conductors are provided with two wires, with the shielding layer covering the outside of the two conductors.

[0011] As a preferred embodiment, the material of the second insulating layer is ETFE.

[0012] Compared with the prior art, this utility model has significant advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly improves the flexibility, tensile strength, and bending resistance of the core wire by twisting together several tinned copper wires and a winding conductor located between several tinned copper wires. The outer sheath is made of TPE, thereby improving the overall wear resistance, flexibility, tensile strength, and bending resistance of the wire, enhancing the reliability and service life of the product. The combination of the shielding layer formed by the aluminum foil layer and the braided layer formed by the winding conductor provides both good shielding and signal stability while increasing the overall flexibility of the wire, resulting in a strong shielding effect and improved anti-interference capability. Furthermore, the first insulation layer is made of ETFE, which can significantly improve the wear resistance and twist pitch stability of the wire, better meeting the requirements for stable signal transmission. The two core wires are twisted together and then wrapped in the second insulation layer to form a conductor, which can improve the tensile strength.

[0013] To more clearly illustrate the structural features, technical means, and specific objectives and functions of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0015] Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present invention.

[0016] Explanation of reference numerals in the attached diagram:

[0017] 10. Core wire 11. Conductor

[0018] 12. First insulating layer; 20. Shielding layer

[0019] 30. Woven layer; 40. Outer liner layer

[0020] 50. Second insulation layer; 60. Conductor

[0021] 70. Nylon yarn. Detailed Implementation

[0022] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", and "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Please refer to Figures 1 to 2 As shown, it illustrates the specific structure of the robot connecting cable provided in an embodiment of this utility model.

[0024] The robot uses a connecting cable, which includes a plurality of core wires 10, a shielding layer 20, a braided layer 30, and an outer sheath layer 40. The shielding layer 20 covers all the core wires 10, the braided layer 30 covers the shielding layer 20, and the outer sheath layer 40 covers the braided layer 30.

[0025] The shielding layer 20 is an aluminum foil layer, and the braided layer 30 is made of extra-flexible wound conductor 11, which provides both good shielding and signal stability while increasing the overall flexibility of the cable. The outer sheath layer 40 is made of TPE, which not only meets the requirements for high and low temperature resistance but also increases the cable's abrasion resistance and flexibility.

[0026] The core wire 10 includes a conductor 11 and a first insulating layer 12 covering the conductor 11. The first insulating layer 12 is made of ETFE. The conductor 11 is formed by twisting together several tinned copper wires and a super flexible wound conductor 11 located between several tinned copper wires, so that it has multiple properties of conductivity, tensile strength, and bending resistance at the same time, avoiding abnormal problems such as poor contact and signal interruption during movement.

[0027] Two core wires 10 are twisted together and then encased in a second insulating layer 50 to form a conductor 60. The second insulating layer 50 is made of ETFE. Here, the first insulating layer 12 and the second insulating layer 50 are made of modified ETFE material, which can significantly improve the wear resistance and twist pitch stability of the wire, and better meet the requirements of stable signal transmission.

[0028] The core wire 10 has four wires, and correspondingly, the conductor 60 has two wires. The shielding layer 20 covers the outside of the two conductors 60.

[0029] A filler is provided between the conductor 60 and the shielding layer 20. The filler is two strands of nylon filament 70. Several conductors 60 and two strands of nylon filament 70 are twisted together. In this embodiment, the two conductors 60 and two strands of nylon filament 70 are twisted together and then covered by an aluminum foil layer.

[0030] This robot connector cable is used to connect the robot and control system in dynamic environments, ensuring efficient and stable transmission of power and signals. The cable is highly flexible, capable of withstanding frequent joint movements and boasting a bending life of over 100,000 cycles. It also exhibits excellent wear and corrosion resistance, adapting to various complex environments and extending its service life. Furthermore, it demonstrates superior resistance to high and low temperatures, maintaining stable performance even under extreme conditions. Finally, it possesses anti-interference capabilities and excellent shielding performance to prevent signal interference.

[0031] In summary, the key design feature of this utility model lies in its use of several tinned copper wires and a winding conductor interspersed among them to enhance the core wire's flexibility, tensile strength, and bending resistance. The outer sheath is made of TPE, further improving the wire's overall abrasion resistance, flexibility, tensile strength, and bending resistance, thus increasing product reliability and lifespan. The combination of an aluminum foil shielding layer and a braided layer formed by the winding conductor provides both good shielding and signal stability while increasing the wire's overall flexibility, resulting in strong shielding and enhanced anti-interference capabilities. Furthermore, the use of ETFE for the first insulation layer significantly improves the wire's abrasion resistance and twist pitch stability, better ensuring stable signal transmission. Finally, the twisting of two core wires within the second insulation layer to form a conductor further enhances tensile strength.

[0032] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A connecting cable for a robot, characterized in that: The device includes a wire comprising several core wires, a shielding layer, a braided layer, and an outer sheath. The shielding layer covers all the core wires, the braided layer covers the shielding layer, and the outer sheath covers the braided layer. The shielding layer is an aluminum foil layer, the braided layer is formed by winding a conductor, and the outer sheath is made of TPE. Each core wire includes a conductor and a first insulating layer covering the conductor. The first insulating layer is made of ETFE. The conductor is formed by twisting several tinned copper wires and a winding conductor located between the several tinned copper wires. Two core wires are twisted together and then covered within a second insulating layer to form a conductor.

2. The connecting cable for robots according to claim 1, characterized in that: A filler is provided between the conductor and the shielding layer.

3. The robot connector according to claim 2, characterized in that: The filler is two strands of nylon filament, and several of the wires are twisted together with the two strands of nylon filament.

4. The robot connector according to claim 1, characterized in that: The core wires are provided with four wires, and correspondingly, there are two conductors. The shielding layer covers the outside of the two conductors.

5. The robot connector according to claim 1, characterized in that: The material of the second insulating layer is ETFE.