Rope type non-wrapping super-flexible cable conductor
The design of large-pitch bundling and annealed copper wire braiding solves the problem of excessive rigidity of the cable conductor, achieves high flexibility and structural stability, and is suitable for power distribution systems of equipment such as robots and robotic arms.
Patent Information
- Application Number
- CN202422243444.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-09-13
AI Technical Summary
The existing cable conductors are made of twisted metal wires, which results in excessive rigidity, affecting flexibility and service life.
It adopts large pitch bundling process and annealed copper wire braiding layer, uses high-purity soft copper wire, and combines with rope-type braiding process to reduce the force and friction loss between single wires.
The cable's flexibility and structural stability are improved, its service life is extended, and it is suitable for power distribution systems of equipment such as robots and robotic arms, reducing installation and maintenance costs.
Smart Images

Figure CN223347525U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of industrial wires and cables, in particular to a rope-type non-wrapped super-flexible cable conductor. Background Art
[0002] In order to improve the stability of the structure, the cable conductor in the prior art is usually made of copper or aluminum as the main material and processed into metal wires (such as the attached Figure 2 However, this also reduces the flexibility of the conductor. Due to the rigidity, there is a large force between the conductor wires. When the cable is bent or twisted, this force will also affect the service life of the cable.
[0003] However, as the equipment manufacturing industry places higher requirements on cable flexibility and the usage scenarios of flexible cables place higher requirements on flexibility, the twisting method in the existing technology cannot meet the requirements.
[0004] Therefore, based on the above reasons, the utility model designs a rope-type, non-wrapped, ultra-flexible cable conductor, which adopts a large-pitch bundled conductor process to improve the flexibility of the cable, greatly reduce the force between the conductor monofilaments and the force between the insulation and the conductor, so that the flexibility of the conductor is guaranteed, the friction loss between the monofilaments inside the conductor is reduced, and the service life of the cable is extended. Summary of the Invention
[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a rope-type, non-wrapped, ultra-flexible cable conductor. The large-pitch bundled conductor process is adopted to improve the flexibility of the cable, greatly reduce the force between the conductor monofilaments and the force between the insulation and the conductor, so that the flexibility of the conductor is guaranteed, the friction loss between the monofilaments inside the conductor is reduced, and the service life of the cable is extended.
[0006] In order to achieve the above object, the utility model provides a rope-type non-wrapped super-flexible cable conductor, comprising large-pitch bundled copper wires and an annealed copper wire braided layer, wherein the outer layer of the large-pitch bundled copper wires is the annealed copper wire braided layer.
[0007] The annealed copper wire braid is a multi-layer rope-type annealed copper wire braid.
[0008] The copper wires in the large-pitch bundled copper wires are high-purity soft copper wires specially used in the electrical industry.
[0009] Compared with the prior art, the present invention has the following beneficial effects:
[0010] This utility model utilizes high-purity, flexible copper wire specifically designed for the electrical industry. The conductor exhibits excellent conductivity and tensile strength, making it suitable for installation in confined spaces. Its flexibility extends the product's lifespan. Nitrogen annealing allows the flexible copper wire to achieve toughness exceeding that of standard copper wire. This process reduces some of the cuprous oxide in the copper, thereby increasing the wire's surface strength.
[0011] The utility model uses large-pitch copper wire bundles to reduce the forces between conductor filaments and between insulation and conductor, ensuring conductor flexibility. The utility model also uses multiple layers of rope-type annealed copper wire braiding, fully utilizing the structural stability and flexibility of the rope-type braiding process.
[0012] The cable produced using this utility model is suitable for power distribution systems in equipment such as robots, robotic arms, and mobile drag chains. It features excellent flexibility, integrated functionality, ease of installation and maintenance, and low application costs. This product is easy to lay and install, and its integrated functional design reduces user procurement costs, meeting the needs of modern intelligent production and living. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural diagram of the present utility model.
[0014] Figure 2 This is a schematic diagram of the existing metal twisting method described in the background technology of the specification.
[0015] Description of reference numerals:
[0016] 1 is a large pitch bundled copper wire, and 2 is an annealed copper wire braid. DETAILED DESCRIPTION
[0017] The present invention will now be further described with reference to the accompanying drawings.
[0018] See also Figure 1 The utility model provides a rope-type non-wrapped super-flexible cable conductor, comprising large-pitch bundled copper wires 1 and an annealed copper wire braided layer 2, wherein the outer layer of the large-pitch bundled copper wires 1 is the annealed copper wire braided layer 2.
[0019] The annealed copper wire braided layer 2 is a multi-layer rope-type annealed copper wire braided layer.
[0020] The copper wires in the large-pitch bundled copper wires 1 are high-purity soft copper wires specially used in the electrical industry.
[0021] Working principle:
[0022] The preparation process of the utility model is:
[0023] Copper wire preparation:
[0024] S1, copper wire drawing for electrical industry;
[0025] S2, copper wire nitrogen annealing;
[0026] Large pitch bunching:
[0027] S3, the annealed copper wire passes through the splitting die and the forming die;
[0028] S4, annealing copper wire tension adjustment;
[0029] S5, copper wires are drawn into bundles;
[0030] Annealed flexible copper wire multi-layer covered braided into a rope-type cable conductor:
[0031] S6, the semi-finished conductor bundle is shaped by passing through the tungsten steel die;
[0032] S7, the conductor semi-finished product is made of annealed flexible copper wire and braided with multiple layers of rope-type braiding.
[0033] The copper wire used in this product is a stranded copper conductor for electrical applications that complies with the IEC 60228:2004 "Conductors for Insulated Cables" standard, ensuring excellent electrical conductivity, electromagnetic signal transmission performance, and convenient installation. The conductor has excellent tensile strength, making it suitable for installation in small spaces, and its flexibility extends the product's service life.
[0034] The flexible copper wires in the large-pitch bundled copper wire 1 undergo nitrogen annealing, achieving toughness exceeding that of conventional copper wire. This nitrogen annealing process reduces some of the cuprous oxide in the copper material and improves the surface strength of the copper wire. Nitrogen annealing is crucial for preventing the copper wire from coming into contact with oxygen, which could lead to oxidation.
[0035] The large pitch bundles of flexible copper wires reduce the forces between conductor filaments and between insulation and conductor, thus ensuring the flexibility of the conductor.
[0036] The key to large-pitch bundling is to ensure consistent tension within each conductor strand, preventing bulging and uneven internal stress within the conductor. In addition to adjusting strand tension, the flexible copper wires must be evenly distributed as they pass through the distribution template to ensure roundness in large-pitch bundles. The subsequent shaping die must be appropriately selected to prevent excessive stress on the bundled wires, which could cause extrusion and deformation.
[0037] The multi-layer copper braid is created using a rope-type braiding process, leveraging the structural stability and flexibility of the rope-type braiding process. This ensures both conductor flexibility and structural stability, preventing breakage during the constant movement and bending of the equipment. The braid can be single or multi-layered, depending on the application.
[0038] The technical parameters of this utility model are as follows:
[0039] The bending radius is:
[0040] In mobile working conditions: minimum cable outer diameter × 3;
[0041] Fixed working conditions: minimum cable outer diameter × 1;
[0042] Torsion range: max.±360° / m;
[0043] Effective bending times: 500,000 times;
[0044] The utility model has a long service life, is safe and reliable to use, is easy to install, has good mechanical properties such as wear resistance, impact resistance, and tear resistance, and has good bending resistance. It can withstand 500,000 movements and bends while still transmitting current normally.
[0045] The above are only preferred embodiments of the present invention and are intended to help understand the method and core concept of this application. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be pointed out that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.
[0046] The utility model comprehensively solves the problem in the prior art that the cables are made of twisted metal wires, which leads to excessive rigidity and insufficient flexibility, thus affecting the service life and application scenarios. An ultra-flexible cable conductor is designed by adopting a large-pitch bundling process, and the force between the conductor monofilaments and the force between the insulation and the conductor are reduced as much as possible, so that the flexibility of the conductor is guaranteed and the friction loss between the monofilaments inside the conductor is reduced. The structural stability and flexibility of the rope-type braiding process are utilized to ensure the flexibility of the conductor while ensuring the structural stability of the conductor, so that the product will not break during the continuous movement and bending of the equipment, thereby extending the service life of the cable.
Claims
1. A rope-type, non-wrapped, ultra-flexible cable conductor, characterized in that: The invention comprises large-pitch bundled copper wires (1) and an annealed copper wire braided layer (2), wherein the outer layer of the large-pitch bundled copper wires (1) is the annealed copper wire braided layer (2); the annealed copper wire braided layer (2) is a multi-layer rope-type annealed copper wire braided layer; the copper wires in the large-pitch bundled copper wires (1) are high-purity soft copper wires specially used in the electrical industry, and the large-pitch bundled copper wires are nitrogen-filled annealed copper wires.