Energy-saving type special-shaped conductor low-voltage cable
By combining the design of irregularly shaped conductors and thermally conductive insulation layers, the mechanical stability and heat dissipation problems of traditional low-voltage multi-core cables are solved, achieving efficient power transmission and mechanical protection.
Patent Information
- Application Number
- CN202520503429.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-21
AI Technical Summary
Traditional low-voltage multi-core cables have poor mechanical stability and large gaps between conductors. Under high temperature or pressure, the insulation or filling material can easily seep into the gaps between irregularly shaped conductors, leading to increased resistance and energy loss, and potentially causing localized overheating.
It adopts an irregularly shaped conductor design, combined with a thermally conductive isolation layer, an insulating layer and a filling layer. The irregularly shaped conductor is a fan-shaped high-conductivity copper or aluminum alloy, the thermally conductive isolation layer is a Z-shaped aluminum-based material, the insulating layer is a low-smoke halogen-free material, the filling layer is a low-smoke halogen-free polyolefin material, and the outer sheath is a polyurethane material, which enhances mechanical stability and heat dissipation.
It improves the mechanical stability and heat dissipation ability of the cable, reduces resistance loss, avoids local overheating, and enhances the transmission efficiency and reliability of the cable.
Smart Images
Figure CN223967065U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable technology, specifically to an energy-saving low-voltage cable with irregularly shaped conductors. Background Technology
[0002] Low-voltage cables are a widely used type of cable in power transmission and distribution systems, typically used for power transmission scenarios with a rated voltage of 1kV and below. Low-voltage cables have advantages such as simple structure, low cost, and ease of installation, and are widely used in civil buildings, industrial facilities, commercial power distribution, and municipal engineering projects.
[0003] Multi-core structures are a very common design in low-voltage cables. By integrating multiple cores (such as 3, 4, 5 or more) into the same cable, multi-core cables can effectively improve wiring efficiency and are commonly used in building wiring, industrial power transmission, control systems, and municipal lighting.
[0004] Traditional low-voltage multi-core cables still have the following problems during use: First, they have poor mechanical stability. The gaps between conductors in the multi-core structure are relatively large, which may lead to vibration or deformation during long-term operation. Second, after the multi-core structure deforms under high temperature or pressure, the material of the insulation layer or filler layer may become embedded between the irregularly shaped conductors, increasing resistance and causing additional energy loss, or even local overload, overheating, and reduced transmission efficiency. Therefore, this application proposes an energy-saving low-voltage cable with irregularly shaped conductors. Utility Model Content
[0005] In order to overcome the problems in the background technology, this utility model provides an energy-saving low-voltage cable with irregularly shaped conductors, which solves the problems of poor mechanical stability and easy insertion of insulation or filling material into the irregularly shaped conductors in traditional low-voltage multi-core cables.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0007] An energy-saving low-voltage cable with irregularly shaped conductors includes irregularly shaped conductors, a thermally conductive insulation layer, an insulation layer, a filling layer, and an outer sheath; the thermally conductive insulation layer covers the outside of the irregularly shaped conductors, the insulation layer covers the outside of the thermally conductive insulation layer, the filling layer fills between multiple irregularly shaped conductors, and the outer sheath covers the outside of the filling layer and the insulation layer.
[0008] Furthermore, the irregularly shaped conductor is a compressed irregularly shaped conductor with a fan-shaped high conductivity copper or aluminum alloy structure.
[0009] Furthermore, the thermally conductive insulating layer is made of aluminum-based thermally conductive material, and the thermally conductive insulating layer has a Z-shaped structure tightly wrapped around the outside of the irregular conductor.
[0010] Furthermore, the insulating layer is an insulating layer made of cross-linked polyethylene or low-smoke halogen-free material.
[0011] Furthermore, the filler layer is a filler layer made of low-smoke halogen-free polyolefin material or polypropylene material.
[0012] Furthermore, the outer sheath is made of polyurethane material.
[0013] The beneficial effects of this utility model are:
[0014] This application adopts an irregular conductor design, which improves space utilization and reduces gaps between conductors through a fan-shaped compression cross-section. A thermally conductive insulation layer is set on the outside of the irregular conductor, and the stability of the conductor structure is enhanced through a Z-shaped nested design. At the same time, the local heat of the conductor can be dispersed to a larger area to avoid local overheating. Attached Figure Description
[0015] To clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments are explained.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.
[0018] 1-Irregularly shaped conductor, 2-Thermal conductive insulation layer, 3-Insulation layer, 4-Filling layer, 5-Outer sheath. Detailed Implementation
[0019] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.
[0020] An energy-saving low-voltage cable with irregularly shaped conductor, see reference. Figure 1-2 The cable includes a shaped conductor 1, a thermally conductive insulating layer 2, a filling layer 3, an insulating layer 4, and an outer sheath 5. The shaped conductor 1 provides transmission functionality. The thermally conductive insulating layer 2 covers the outside of the shaped conductor 1, maintaining the conductor's shape stability, improving cable operational reliability, and quickly dissipating heat from localized high-temperature areas of the shaped conductor. The filling layer 3 covers the outside of the thermally conductive insulating layer 2, improving the cable's roundness and mechanical strength. The insulating layer 4 covers the outside of the filling layer 3, providing excellent electrical insulation performance. The outer sheath 5 covers the outside of the insulating layer 4 and the filling layer 3, providing waterproof, corrosion-resistant, and wear-resistant properties.
[0021] See Figure 1-2 The irregularly shaped conductor 1 is a compressed irregularly shaped conductor 1 with a fan-shaped high conductivity copper or aluminum alloy structure, which effectively improves conductivity and reduces resistance loss.
[0022] See Figure 1-2 The thermally conductive insulation layer 2 is made of aluminum-based thermally conductive material. The thermally conductive insulation layer 2 is tightly wrapped around the outside of the irregular conductor 1 in a Z-shaped structure. The aluminum-based material quickly disperses the heat in the local high-temperature area of the irregular conductor. The tight wrapping of the Z-shaped structure prevents the insulation layer or filling layer from penetrating into the conductor gap, maintains the stability of the conductor shape, and improves the reliability of cable operation.
[0023] See Figure 1-2 The filler layer 3 is made of cross-linked polyethylene or low-smoke halogen-free material, which improves the roundness and mechanical strength of the cable.
[0024] See Figure 1-2 The insulating layer 4 is made of low-smoke halogen-free polyolefin material or polypropylene material, and has excellent electrical insulation performance and high temperature resistance.
[0025] See Figure 1-2 The outer sheath 5 is made of polyurethane material.
[0026] Work process:
[0027] When the cable is in operation, the irregularly shaped conductor 1 achieves rapid heat dissipation through the thermally conductive insulation layer 2, while maintaining the stability of the conductor structure. The insulation layer 3 and the filler layer 4 provide electrical and mechanical protection, and the outer sheath 5 protects against the influence of the external environment, thereby achieving energy-saving, efficient and reliable power transmission.
[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An energy-saving low-voltage cable with irregularly shaped conductor, characterized in that: It includes a shaped conductor (1), a thermally conductive insulating layer (2), a filling layer (3), an insulating layer (4), and an outer sheath (5); the thermally conductive insulating layer (2) covers the outside of the shaped conductor (1), the filling layer (3) covers the outside of the thermally conductive insulating layer (2), the insulating layer (4) covers the outside of the filling layer (3), and the outer sheath (5) covers the outside of the insulating layer (4) and the filling layer (3).
2. The energy-saving low-voltage cable with irregularly shaped conductor according to claim 1, characterized in that: The irregular conductor (1) is a compressed irregular conductor (1) with a fan-shaped high conductivity copper or aluminum alloy structure.
3. The energy-saving low-voltage cable with irregularly shaped conductor according to claim 1, characterized in that: The thermally conductive isolation layer (2) is made of aluminum-based thermally conductive material. The thermally conductive isolation layer (2) has a Z-shaped structure and is tightly wrapped around the outside of the irregular conductor (1).
4. The energy-saving low-voltage cable with irregularly shaped conductor according to claim 1, characterized in that: The filler layer (3) is made of cross-linked polyethylene or low-smoke halogen-free material.
5. The energy-saving low-voltage cable with irregularly shaped conductor according to claim 1, characterized in that: The insulating layer (4) is an insulating layer (4) made of low smoke halogen-free polyolefin material or polypropylene material.
6. The energy-saving low-voltage cable with irregularly shaped conductor according to claim 1, characterized in that: The outer sheath (5) is made of polyurethane material.