High-flexibility cable
Through multi-layered structural design and material selection, the flexibility and electromagnetic interference resistance of the cable are improved, solving the problem of cable failure during frequent movement and bending, and reducing maintenance costs.
Patent Information
- Application Number
- CN202520546016.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Existing cables are prone to outer sheath cracking and internal conductor breakage during frequent movement and bending, leading to equipment failure and increased maintenance costs.
The cable employs a multi-layer structure design, including an outer reinforcing layer, an inner shielding layer, and flexible materials. It utilizes materials such as TPU, glass fiber, PUR, and TPE, combined with a double-layer shielding design and flexible filling materials, to enhance the cable's flexibility and electromagnetic interference resistance.
It significantly improves the cable's flexibility, tensile strength, abrasion resistance, and resistance to environmental corrosion, reduces the risk of outer sheath rupture and internal conductor breakage, and enhances the stability and reliability of equipment operation.
Smart Images

Figure CN223977718U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable technology, and in particular to a highly flexible cable. Background Technology
[0002] Cables typically consist of one or more insulated conductors, encased in an insulating protective layer, and are used to transmit electricity or information from one place to another. They can be a single conductor or multiple conductors twisted together, with each group of conductors insulated from the others, usually twisted around a central conductor, and covered with a highly insulating material.
[0003] In applications such as robots, robotic arms, and automated production lines, cables need to move and bend frequently with the equipment. However, existing cables are prone to problems such as outer sheath cracking and internal conductor breakage under long-term dynamic stress, leading to equipment failure and increased maintenance costs. Therefore, there is an urgent need to develop more flexible and durable cable solutions to address the challenges posed by high-frequency movement and bending. Utility Model Content
[0004] This utility model is a high-flexibility cable proposed to overcome the shortcomings of the existing technology.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-flexibility cable, comprising a cable, wherein a reinforcing layer is fixedly wound around the outer surface of the cable body;
[0006] The reinforcing layer includes an adhesive layer, which is fixedly bonded to the outer surface of the cable body. A first rubber layer is fixedly connected to the top of the adhesive layer, a tensile layer is fixedly connected to the top of the first rubber layer, and a second rubber layer is fixedly connected to the top of the tensile layer.
[0007] The cable body includes an outer sheath, a shielding layer is fixedly connected to the inner surface of the outer sheath, an inner sheath is fixedly connected to the shielding layer, four insulating sleeves are provided on the inner side of the inner sheath, and flexible material is filled between the four insulating sleeves and the inner sheath. The inner core of the cable is fixedly connected inside each of the four insulating sleeves.
[0008] Furthermore, both the first rubber layer and the second rubber layer are made of TPU material.
[0009] Furthermore, the tensile layer is made of glass fiber.
[0010] Furthermore, the outer sheath is made of PUR material.
[0011] Furthermore, the shielding layer adopts a double-layer design, including aluminum foil Mylar tape, and a woven copper mesh is fixedly connected to the outer surface of the aluminum foil Mylar tape.
[0012] Furthermore, the inner sheath is made of TPE material.
[0013] Furthermore, the flexible material is made of foamed polyethylene.
[0014] Furthermore, all four cable cores are made of multiple ultra-fine tin-plated copper wires twisted together.
[0015] The beneficial effects of this utility model are:
[0016] In use, this utility model provides a high-flexibility cable that significantly improves its flexibility, tensile strength, abrasion resistance, and resistance to environmental corrosion through the selection of its external reinforcing layer, internal structure, and materials. Simultaneously, the double-layer shielding design and the application of flexible filling materials further enhance the cable's electromagnetic interference resistance and bending fatigue resistance. These improvements enable the cable to better adapt to high-frequency bending and dynamic stress operating environments, reducing the risk of outer sheath rupture and internal conductor breakage, thereby lowering maintenance costs and improving the stability and reliability of equipment operation. Attached Figure Description
[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 : A perspective view of this utility model;
[0019] Figure 2 : Schematic diagram of the reinforcing layer structure of this utility model;
[0020] Figure 3 : Schematic diagram of the shielding layer structure of this utility model.
[0021] The attached figures are labeled as follows:
[0022] 1. Reinforcing layer; 11. Tensile layer; 12. First rubber layer; 13. Second rubber layer; 14. Adhesive layer; 21. Outer sheath; 22. Shielding layer; 221. Braided copper mesh; 222. Aluminum foil Mylar tape; 23. Inner sheath; 24. Flexible material; 25. Insulating sleeve; 26. Cable core. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] Example 1: As Figures 1 to 2 As shown, a highly flexible cable is disclosed, comprising a cable, wherein a reinforcing layer 1 is fixedly wound around the outer surface of the cable body.
[0025] The reinforcing layer 1 includes an adhesive layer 14, which is fixedly bonded to the outer surface of the cable body. A first rubber layer 12 is fixedly connected to the top of the adhesive layer 14, a tensile layer 11 is fixedly connected to the top of the first rubber layer 12, and a second rubber layer 13 is fixedly connected to the top of the tensile layer 11. Both the first rubber layer 12 and the second rubber layer 13 are made of TPU material, and the tensile layer 11 is made of glass fiber.
[0026] Fiberglass has high tensile strength and flexibility, which can effectively disperse the stress of the cable when it is bent and stretched, reducing the risk of outer sheath breakage.
[0027] Both the first rubber layer 12 and the second rubber layer 13 are made of TPU material, which has high elasticity and wear resistance, further enhancing the flexibility and durability of the cable.
[0028] Example 2: Figure 1 and Figure 3 As shown, a highly flexible cable is disclosed, comprising a cable body including an outer sheath 21, a shielding layer 22 fixedly connected to the inner surface of the outer sheath 21, an inner sheath 23 fixedly connected to the shielding layer 22, four insulating sleeves 25 provided on the inner side of the inner sheath 23, a flexible material 24 being filled between the four insulating sleeves 25 and the inner sheath 23, and a cable core 26 fixedly connected inside each of the four insulating sleeves 25.
[0029] The outer sheath 21 is made of PUR material, and the inner sheath 23 is made of TPE material.
[0030] Both PUR and TPE materials have excellent abrasion resistance, oil resistance and environmental corrosion resistance, which can effectively protect the cable for long-term use in high-frequency motion and complex environments.
[0031] The high elasticity of these materials can also reduce fatigue damage to cables when they are bent.
[0032] The shielding layer 22 adopts a double-layer design, including aluminum foil Mylar tape 222, and a woven copper mesh 221 is fixedly connected to the outer surface of the aluminum foil Mylar tape 222.
[0033] The double-shielded design provides excellent electromagnetic shielding performance, reducing the impact of external electromagnetic interference on cable signal transmission.
[0034] The combination of aluminum foil Mylar tape 222 and braided copper mesh 221 ensures both shielding effectiveness and cable flexibility.
[0035] The flexible material 24 is made of foamed polyethylene, which has good cushioning properties and can absorb the internal stress of the cable when it is bent and vibrated, thus protecting the inner core 26 of the cable.
[0036] The four inner cores 26 of the cable are all made of multiple ultra-fine tinned copper wires twisted together, which improves the flexibility and resistance to bending fatigue of the conductor and reduces the possibility of internal conductor breakage.
[0037] Working principle: In scenarios where cables do not require frequent movement and bending, the cable designed in Example 2 can meet the usage requirements and reduce costs.
[0038] When cables are used in scenarios where they need to move and bend frequently with equipment, the solutions in Example 1 and Example 2 should be combined to ensure the flexibility of the cables.
[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A high flexibility electrical cable comprising a cable body, characterized in that: The outer surface of the cable body is fixedly wound with a reinforcing layer (1); The reinforcing layer (1) comprises an adhesive layer (14) fixedly adhered to the outer surface of the cable body, the top of the adhesive layer (14) is fixedly connected with a first rubber layer (12), the top of the first rubber layer (12) is fixedly connected with a tensile layer (11), and the top of the tensile layer (11) is fixedly connected with a second rubber layer (13); The cable body comprises an outer sheath (21), the inner surface of the outer sheath (21) is fixedly connected with a shielding layer (22), the shielding layer (22) is fixedly connected with an inner sheath (23), the inner side of the inner sheath (23) is provided with four insulation sleeves (25), the four insulation sleeves (25) and the inner sheath (23) are collectively filled with a flexible material (24), and the inner part of each of the four insulation sleeves (25) is fixedly connected with a cable inner core (26).
2. A high flexibility cable according to claim 1, characterized in that: The first rubber layer (12) and the second rubber layer (13) are both made of TPU material.
3. A high flexibility cable according to claim 1, characterized in that: The tensile layer (11) is made of glass fiber.
4. A high flexibility cable according to claim 1, characterized in that: The outer sheath (21) is made of PUR material.
5. A high flexibility cable according to claim 1, characterized in that: The shielding layer (22) is designed in a double-layer structure and comprises an aluminum foil Mylar tape (222), and the outer surface of the aluminum foil Mylar tape (222) is fixedly connected with a braided copper mesh (221).
6. A high flexibility cable according to claim 1, characterized in that: The inner sheath (23) is made of TPE material.
7. A high flexibility cable according to claim 1, characterized in that: The flexible material (24) is made of foamed polyethylene.
8. A high flexibility cable according to claim 1, characterized in that: The four cable inner cores (26) are all made of a plurality of ultrafine tinned copper wires.