A sports water-blocking cable

Abstract

The utility model provides a kind of sports water-blocking cable, comprising: wire group, the wire group includes: conductor, including tinned copper alloy wire and water-blocking yarn is stranded to form conductor;First water-blocking tape layer, is covered in the outside of the conductor;Insulating layer, is covered in the outside of the first water-blocking tape layer;Nylon isolation layer, is covered in the outside of the insulating layer;Through the stranded structure of tinned copper alloy wire and water-blocking yarn, dynamic water-blocking tape layer, the synergic design of insulating layer and nylon isolation layer, while guaranteeing flexibility and light weight, improve the water-blocking performance of cable, mechanical strength and environmental interference resistance, applicable to sports equipment, outdoor connection and other scenes, improve the service life of cable.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a moving water-blocking cable. Background Technology

[0002] During long-term use, sports cables (such as cables for fitness equipment, connecting wires for outdoor sports equipment, etc.) are prone to the following technical problems due to frequent bending, stretching, and contact with the external environment (such as rainwater and sweat): Conductor oxidation and signal attenuation: Traditional conductors are prone to oxidation in humid environments, leading to increased resistance and affecting signal transmission quality. Although tin-plated copper alloys can delay oxidation, long-term friction can still damage the plating and reduce conductivity.

[0003] Insufficient water-blocking performance: The water-blocking structure of ordinary cables mostly uses a single water-blocking tape or filling material. However, during operation, the cable may develop tiny cracks due to repeated bending, causing external moisture to seep in and triggering short circuits or insulation failure.

[0004] The trade-off between mechanical strength and flexibility: motion cables need to possess both high strength (tensile and compressive strength) and flexibility (to withstand frequent bending). While traditional nylon sheaths can provide some protection, prolonged motion can easily lead to sheath wear, affecting cable lifespan.

[0005] Insufficient insulation layer isolation from the external environment: When the insulation layer is directly exposed to the sports environment, it may age due to friction, temperature changes or chemical corrosion (such as salt in sweat), resulting in a decrease in insulation performance.

[0006] In existing technologies, some cables improve performance by increasing sheath thickness or using multiple layers of water-blocking materials. However, such designs often sacrifice cable flexibility and lightweight, making it difficult to meet the demands for flexibility and portability in sports scenarios. In addition, existing water-blocking structures mostly use static water-blocking methods (such as filling with water-blocking powder), which cannot adapt to the dynamic deformation of the cable during movement, resulting in unstable water-blocking effects.

[0007] The above background information is disclosed only to assist in understanding the utility model concept and technical solution of this utility model, and does not necessarily belong to the prior art of this patent application, nor does it necessarily provide technical teaching; in the absence of clear evidence to prove the novelty and inventiveness of the above application. Utility Model Content

[0008] To address the technical problems in the background, this utility model proposes a water-blocking cable for sports applications. Through the synergistic design of a twisted structure of tin-plated copper alloy wire and water-blocking yarn, a dynamic water-blocking tape layer, an insulation layer, and a nylon isolation layer, the cable's water-blocking performance, mechanical strength, and resistance to environmental interference are improved while ensuring flexibility and lightweight. It is suitable for sports equipment, outdoor connections, and other scenarios, thus extending the cable's service life.

[0009] To achieve the above objectives, the technical solution of this utility model is as follows: On one hand, this utility model provides a moving water-blocking cable, comprising: a wire assembly, wherein the wire assembly includes: The conductor comprises tin-plated copper alloy wire and water-resistant yarn twisted together to form a conductor; The first water-blocking layer covers the outside of the conductor; An insulating layer is provided to cover the outside of the first water-blocking tape layer. A nylon insulating layer is wrapped around the outside of the insulating layer.

[0010] This utility model proposes a water-blocking cable for sports. Through the synergistic design of the twisted structure of tin-plated copper alloy wire and water-blocking yarn, dynamic water-blocking tape layer, insulation layer and nylon isolation layer, the cable's water-blocking performance, mechanical strength and resistance to environmental interference are improved while ensuring flexibility and lightweight. It is suitable for sports equipment, outdoor connection and other scenarios, and improves the service life of the cable.

[0011] As a preferred technical solution, multiple wires are twisted into a cable core, and water-stopping adhesive filler is used to fill the gaps in the cable core. A second water-blocking tape layer is wrapped around the outside of the cable core.

[0012] As a preferred technical solution, it includes: a polyethylene waterproof isolation layer, which covers the outside of the second water-blocking strip layer.

[0013] As a preferred technical solution, it includes: a third water-blocking strip layer, which covers the outside of the polyethylene waterproof isolation layer.

[0014] As a preferred technical solution, it includes: a polyurethane sheath, which covers the outside of the third water-blocking strip layer.

[0015] As a preferred technical solution, the outer diameter of the tin-plated copper alloy wire is ≤0.12mm.

[0016] As a preferred technical solution, the water-stopping adhesive filler is a water-swellable sealant filler.

[0017] As a preferred technical solution, the waterproofing filler includes: PJ-220 waterproofing filler or PJ-400 waterproofing filler.

[0018] As a preferred technical solution, the wire group has at least four wires, wherein two of the wire groups are arranged along the axis of the cable corresponding to the other two wire groups.

[0019] The water-blocking cable for motion provided by this utility model has the following beneficial effects: 1) The present invention provides a water-blocking cable for sports, which improves the water-blocking performance, mechanical strength and resistance to environmental interference of the cable while ensuring flexibility and lightweight, through the synergistic design of the twisted structure of tin-plated copper alloy wire and water-blocking yarn, dynamic water-blocking tape layer, insulation layer and nylon isolation layer. It is suitable for sports equipment, outdoor connection and other scenarios, and improves the service life of the cable.

[0020] 2) This utility model provides a core wire twisted-pair wrapping structure and cable. After the water-blocking yarn (such as super absorbent polymer fiber) is twisted with the conductor, it expands rapidly when water seeps in, forming microscopic water-blocking channels to block the diffusion of water to the conductor core and avoid poor contact or short circuits caused by local oxidation. In a simulated high-humidity motion environment, the conductor resistance change rate is reduced by more than 60% compared with traditional copper conductors, and the signal transmission efficiency is improved by 30%. The high strength of tin-plated copper alloy wire combined with the elasticity of water-resistant yarn makes the internal structure less prone to breakage when the conductor is repeatedly bent (such as the curling and stretching of fitness equipment cables), while maintaining flexibility to adapt to dynamic deformation; after 100,000 dynamic bending tests, the conductor breakage rate is less than 0.5%, meeting the stringent requirements of sports equipment for cable life. The water-blocking tape layer and the insulation layer form a "dynamic-static" dual water-blocking system. Even if the cable develops tiny cracks due to movement, the water-blocking tape can respond quickly to ensure that water cannot penetrate into the core of the conductor. In the IP68 waterproof rating test, the insulation resistance value of the cable is still higher than 1000MΩ·km after immersion in water for 24 hours, which is far higher than the industry standard (≥500MΩ·km). Nylon material has high wear resistance (coefficient of friction as low as 0.15) and impact resistance, which can effectively resist the friction between the cable and equipment, the ground or other objects during operation, thus extending its service life. After 5,000 friction tests, the wear depth of the nylon insulating layer is less than 0.1 mm, which is much lower than that of similar sheath materials (such as PVC with a wear depth of 0.5 mm). This water-blocking cable achieves the following technical effects through the synergistic design of a twisted structure of tin-plated copper alloy wire and water-blocking yarn, a dynamic water-blocking tape layer, an insulation layer, and a nylon insulating layer: Improved water resistance: IP68 waterproof rating, reducing water permeability by 90%; Mechanical performance optimization: Bending resistance and wear resistance are improved by more than 50%, and service life is extended to 5 years; Improved electrical performance: Conductor resistance stability is improved by 30%, and signal transmission efficiency is optimized. Attached Figure Description

[0021] Figure 1 A schematic diagram of the structure of a water-blocking cable for motion provided by this utility model; Wherein, 1-conductor; 2-first water-blocking strip layer; 3-insulating layer; 4-nylon isolation layer; 5-water-stopping adhesive filler; 6-second water-blocking strip layer; 7-polyethylene waterproof isolation layer; 8-third water-blocking strip layer; 9-polyurethane sheath. Detailed Implementation

[0022] The preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, this utility model provides a water-blocking cable for motion, comprising: a wire assembly, wherein the wire assembly includes: Conductor 1 comprises tin-plated copper alloy wire and water-blocking yarn twisted together to form conductor 1; The first water-blocking layer 2 covers the outside of the conductor 1; Insulating layer 3 covers the outside of the first water-blocking strip layer 2; A nylon insulating layer 4 is wrapped around the outside of the insulating layer 3.

[0024] This utility model proposes a water-blocking cable for sports. Through the synergistic design of the twisted structure of tin-plated copper alloy wire and water-blocking yarn, dynamic water-blocking tape layer, insulation layer and nylon isolation layer, the cable's water-blocking performance, mechanical strength and resistance to environmental interference are improved while ensuring flexibility and lightweight. It is suitable for sports equipment, outdoor connection and other scenarios, and improves the service life of the cable.

[0025] Preferably, multiple wires are twisted into a cable core, and a water-stopping adhesive filler 5 is filled in the gaps of the cable core, and a second water-blocking tape layer 6 is wrapped around the outside of the cable core. The water-stopping adhesive filler 5 fills the gaps in the cable core, which can effectively prevent water from penetrating longitudinally (axially) or laterally (radially) inside the cable core. When water enters the cable core from the outside, the water-stopping adhesive expands when it comes into contact with water, quickly blocking the water channels and forming a physical barrier. The second water-blocking layer 6 covers the outside of the cable core, serving as a second line of defense to further block external moisture intrusion. Even if the outer sheath is damaged, the second water-blocking layer 6 can prevent moisture diffusion through its water-swelling properties or dense structure.

[0026] Preferably, it includes: a polyethylene waterproof isolation layer 7, which covers the outside of the second water-blocking strip layer 6; the polyethylene waterproof isolation layer 7 covers the outside of the second water-blocking strip layer 6 and mainly plays a role in radial water blocking. Its core function is to act as a physical barrier to prevent moisture from radially penetrating through the cable sheath into the internal insulation layer 3.

[0027] Preferably, it includes: a third water-blocking tape layer 8, which covers the outside of the polyethylene waterproof isolation layer 7; when water penetrates through the cable sheath or joint, the third water-blocking tape layer 8 can quickly absorb water and expand to form a gel-like substance, blocking any longitudinal channels that may exist, such as the stranding gaps of the conductor 1 inside the cable, to prevent further diffusion of water; the polyethylene waterproof isolation layer 7 (radial water blocking) and the third water-blocking tape layer 8 (longitudinal water blocking) together constitute a multi-level protection system to ensure the overall water-blocking performance of the cable in complex and humid environments (such as underwater laying).

[0028] Preferably, it includes: a polyurethane sheath 9, which covers the outside of the third water-blocking strip layer 8; the polyurethane sheath 9 provides comprehensive external protection for the cable through its high mechanical strength and environmental adaptability, ensuring its reliable operation under complex working conditions.

[0029] Preferably, the outer diameter of the tin-plated copper alloy wire is ≤0.12mm; the ≤0.12mm tin-plated copper alloy wire, through precision processes and material optimization, achieves high-frequency signal efficient transmission, micro-device adaptation, and improved environmental reliability.

[0030] Preferably, the water-stopping sealant filler 5 is a water-swellable sealant filler; the water-swellable sealant filler mainly plays the role of sealing, waterproofing and moisture-proofing. Its core function is to fill the gaps inside the cable by expanding when it comes into contact with water, preventing water molecules from passing through, thereby protecting the normal operation of the cable in humid or special environments, ensuring the cable's motion performance while improving waterproof sealing.

[0031] Preferably, the waterproof sealant filler 5 includes: PJ-220 waterproof sealant filler or PJ-400 waterproof sealant filler; in the cable, PJ-220 and PJ-400 waterproof sealant fillers are mainly used for sealing and waterproofing, and their core function is to fill the gaps inside the cable or at the joints by using the water-swelling property to prevent water penetration.

[0032] Preferably, the wire group has at least four wires, wherein two of the wire groups are arranged along the axis of the cable corresponding to the other two wire groups; the corresponding wire groups are arranged symmetrically in space to ensure that the electrical characteristics (such as impedance and capacitance) of each pair of wire groups are consistent, thereby optimizing the balance of signal transmission, reducing signal distortion, and balancing transmission and impedance matching; the symmetrical structure can effectively reduce electromagnetic interference (crosstalk) between different wire groups in the same cable and suppress crosstalk; for example, the twisting direction of adjacent pairs in the four wire groups is opposite, which improves the transmission quality by canceling interference signals; if the wire group adopts a balanced design (such as twisted pair), the symmetrical layout can cancel external interference signals through the common mode suppression principle, because the interference will act on two wire groups at the same time but with opposite polarities, and is finally canceled at the load end, enhancing the anti-interference capability.

[0033] This utility model provides a water-blocking cable for motion, comprising: a wire assembly, the wire assembly including: a conductor 1, comprising tin-plated copper alloy wire and water-blocking yarn twisted together to form the conductor 1; a first water-blocking tape layer 2 covering the outside of the conductor 1; an insulation layer 3 covering the outside of the first water-blocking tape layer 2; and a nylon insulating layer 4 covering the outside of the insulation layer 3; the wire assembly has at least four wires, wherein two wire assemblies are arranged along the cable axis corresponding to the other two wire assemblies, and multiple wire assemblies are twisted into a cable core, with water-stopping adhesive filling the gaps in the cable core. The cable core is covered with a second water-blocking tape layer 6, a polyethylene waterproof isolation layer 7, a third water-blocking tape layer 8, and a polyurethane sheath 9. The outer diameter of the tin-plated copper alloy wire is 0.12 mm, and the water-stopping adhesive filler 5 is PJ-220 water-stopping adhesive filler. The cable's elasticity, waterproofness, corrosion resistance, abrasion resistance, and tear resistance are greatly improved, while also increasing the cable's service life.

[0034] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by this utility model.

Claims

1. A water-blocking cable for motion, characterized in that, include: The wire set includes: The conductor comprises tin-plated copper alloy wire and water-resistant yarn twisted together to form a conductor; The first water-blocking layer covers the outside of the conductor; An insulating layer is formed on the outside of the first water-blocking tape layer; A nylon insulating layer is wrapped around the outside of the insulating layer.

2. The water-blocking cable according to claim 1, characterized in that, Multiple wires are twisted together to form a cable core, and the gaps between the cable cores are filled with a water-stopping adhesive filler. The outer side of the cable core is covered with a second water-blocking tape layer.

3. The water-blocking cable according to claim 2, characterized in that, include: A polyethylene waterproof barrier layer is provided, which covers the outside of the second water-blocking strip layer.

4. The water-blocking cable according to claim 3, characterized in that, include: The third water-blocking layer is wrapped around the outside of the polyethylene waterproof isolation layer.

5. The water-blocking cable according to claim 4, characterized in that, include: A polyurethane sheath, which covers the outside of the third water-blocking strip layer.

6. The water-blocking cable according to claim 1, characterized in that, The outer diameter of the tin-plated copper alloy wire is ≤0.12mm.

7. The water-blocking cable according to claim 2, characterized in that, The water-stopping sealant filler is a water-swellable sealant filler.

8. The water-blocking cable according to claim 2 or the present invention, characterized in that, The waterproofing filler includes: PJ-220 waterproofing filler or PJ-400 waterproofing filler.

9. The water-blocking cable according to claim 2, characterized in that, The cable group has at least four wires, wherein two of the cable groups are arranged along the axis of the cable corresponding to the other two cable groups.

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