Anti-icing cable
By designing the internal load-bearing core and external conductive layer structure of the anti-icing cable, the icing problem of the cable in low-temperature rainy and snowy weather is solved, and the effect of reducing the icing risk and improving the mechanical strength and conductive performance is achieved.
Patent Information
- Application Number
- CN202422786235.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-14
AI Technical Summary
In existing technologies, cables are easily covered with ice in low-temperature, rainy, and snowy weather, causing line sagging, structural damage, and power failures. Traditional anti-icing measures are costly, energy-intensive, and have limited effectiveness.
An anti-icing cable is designed, which adopts an internal load-bearing core to provide mechanical strength, an outer edge of the cross-section of the external conductive layer is elliptical to reduce ice and snow accumulation, and the inner edge is rounded to improve stability. The aerodynamic characteristics of the cable are optimized through the twisted structure of the special-shaped core and the conductive layer.
It effectively reduces the risk of cable icing, lowers material costs, improves mechanical strength and conductivity, reduces manufacturing difficulty, and maintains cable stability and durability in severe weather.
Smart Images
Figure CN223377935U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to cable technology, and in particular to an anti-icing cable. Background Art
[0002] Cables are a crucial component of power transmission lines, and their performance directly impacts their transmission efficiency and safety. In cold, rainy, and snowy weather, cables are easily covered with snow and ice, which not only increases cable weight, causing line sagging and structural damage, but can also lead to power failures and safety accidents.
[0003] In related technologies, in order to prevent ice from covering the cables and affecting their performance, the cables are generally coated with smooth materials or additional conductor heating devices are installed. However, the above methods increase the additional manufacturing cost of the cables, and the construction and subsequent maintenance of the transmission lines are difficult and have great limitations. Utility Model Content
[0004] The present application provides an anti-icing cable, which is used to solve the technical problem in the related art that the normal operation of the cable is easily affected by ice coating.
[0005] The present application provides an anti-icing cable, comprising:
[0006] at least one internal load-bearing core;
[0007] An internal conductive layer wrapping the internal load-bearing core;
[0008] At least one outer conductive layer wraps the inner conductive layer, the inner edge of the cross section of the outer conductive layer is circular, and the outer edge of the cross section of the outer conductive layer is elliptical.
[0009] In a possible implementation, in the anti-icing cable in the embodiment of the present application, the inner conductive layer includes a plurality of conductive cores twisted together, and cross-sections of the plurality of conductive cores are all circular with the same size.
[0010] In a possible embodiment, in the anti-icing cable in the embodiment of the present application, the outer conductive layer includes a plurality of special-shaped cores twisted together, and the thickness of the special-shaped cores gradually increases along the center of the outer conductive layer toward the end of its long axis.
[0011] In a possible implementation, in the anti-icing cable in the embodiment of the present application, the cross-section of the special-shaped core is tile-shaped; the inner arc length of the special-shaped core is smaller than the outer arc length of the special-shaped core, and surface contact is formed between two adjacent special-shaped cores.
[0012] In one possible embodiment, in the anti-icing cable in the embodiment of the present application, the conductive core is an aluminum core, an aluminum-magnesium-silicon alloy core, or an aluminum-zirconium alloy core; and / or, the special-shaped core is an aluminum core, an aluminum-magnesium-silicon alloy core, or an aluminum-zirconium alloy core.
[0013] In a possible implementation manner, in the anti-icing cable in the embodiment of the present application, the number of at least one of the special-shaped cores and the conductive cores is an even number.
[0014] In a possible implementation manner, the anti-icing cable in the embodiment of the present application further includes an outer sheath, which wraps the outer conductive layer, and the shape of the outer sheath is adapted to the configuration of the outer conductive layer.
[0015] In a possible implementation manner, in the anti-icing cable in the embodiment of the present application, the outer protective layer is an electroplating layer or a polishing layer.
[0016] In a possible implementation manner, in the anti-icing cable in the embodiment of the present application, the internal load-bearing core includes a plurality of cores twisted together, and the cross-section of the internal load-bearing core is circular.
[0017] In a possible implementation manner, in the anti-icing cable in the embodiment of the present application, the internal load-bearing core is a galvanized steel core, an aluminum-clad steel core, or an aluminum-clad Invar core.
[0018] The anti-icing cable provided in the present application utilizes an internal load-bearing core to provide the cable with good mechanical strength, withstand the pressure and tension of the external environment, and reduce the risk of tearing. The outer edge of the cross-section of the external conductive layer is elliptical, which helps to reduce the accumulation of ice and snow on the cable, making it easier for ice, snow and rain to slide off the cable, thereby reducing the risk of cable icing; in addition, the inner edge of the cross-section of the external conductive layer is circular, so that the internal conductive layer and the internal load-bearing core located within the external conductive layer have good stability, and can reduce material costs and reduce production difficulty. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0020] Figure 1 Schematic diagram of the hierarchical structure of the anti-icing cable in an embodiment of the present application;
[0021] Figure 2 Schematic diagram of the internal structure of the anti-icing cable in an embodiment of the present application.
[0022] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.
[0023] Description of Reference Numerals
[0024] 100. Internal load-bearing core;
[0025] 200, inner conductive layer; 201, conductive core;
[0026] 300, outer conductive layer; 301, special-shaped wire core. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The embodiments of the present application are described in detail below in conjunction with the drawings.
[0028] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0029] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this application.
[0030] The terms "first," "second," "third," "fourth," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the application described herein can, for example, be implemented in an order other than that illustrated or described herein.
[0031] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.
[0032] As mentioned in the background, cable reliability and performance are key factors in ensuring a stable power supply in modern power transmission systems. With global climate change and the frequent occurrence of extreme weather events, icing of power cables in harsh environmental conditions, particularly in cold regions, poses a significant challenge to their safety and functionality. Icing not only increases cable weight but can also cause mechanical damage and even cable breakage, seriously impacting the continuity of power supply.
[0033] Traditional anti-icing measures, such as heating systems and mechanical de-icing equipment, can alleviate the icing problem to some extent. However, these methods are often costly, energy-intensive, and have limited effectiveness in extreme weather conditions. Furthermore, the aerodynamic properties and structural design of cables directly impact their stability and durability in windy and snowy conditions. Therefore, optimizing cable structure to naturally reduce ice accumulation while simultaneously improving mechanical strength and electrical conductivity has become a pressing technical challenge.
[0034] Based on the above related technical description, one or more embodiments of the present application provide an anti-icing cable, which provides good mechanical strength for the cable through an internal load-bearing core, withstands the pressure and tension of the external environment, and reduces the risk of tearing. The outer edge of the cross-section of the external conductive layer is elliptical, which helps to reduce the accumulation of ice and snow on the cable, making it easier for ice, snow and rain to slide off the cable, thereby reducing the risk of cable icing; in addition, the inner edge of the cross-section of the external conductive layer is circular, so that the internal conductive layer and the internal load-bearing core located in the external conductive layer have good stability, and can reduce material costs and reduce production difficulty.
[0035] The anti-icing cable according to an embodiment of the present application is described below with reference to the accompanying drawings.
[0036] like Figure 1As shown, the anti-icing cable in the embodiment of the present application includes at least one internal load-bearing core 100, an internal conductive layer 200 and at least one external conductive layer 300, wherein the internal conductive layer 200 wraps the internal load-bearing core 100, and at least one external conductive layer 300 wraps the internal conductive layer 200, and the inner edge of the cross-section of the external conductive layer 300 is circular, and the outer edge of the cross-section of the external conductive layer 300 is elliptical.
[0037] From the above description, it can be seen that in the anti-icing cable of the embodiment of the present application, the internal load-bearing core 100 can provide good mechanical strength for the cable and withstand external environmental pressure and pressure. The outer edge of the cross-section of the external conductive layer 300 is elliptical, which helps to reduce the accumulation of ice and snow on the cable, making it easier for ice, snow and rain to slide off the cable, thereby reducing the risk of cable icing; in addition, the inner edge of the cross-section of the external conductive layer 300 is circular, and the circular cross-section can surround the largest wrapping area within the same circumference. Therefore, with the same material usage and size, a larger wrapping space can be achieved in the external conductive layer 300. This setting can further reduce material costs.
[0038] It should be noted that the "inside" and "outside" in the embodiment of the present application are described with reference to the cross-sectional direction of the cable. From the inside to the outside, the cable is composed of the inner load-bearing core 100, the inner conductive layer 200 and the outer conductive layer 300. In addition, Figure 1 The relationship between the various levels is shown in FIG. 1 . For the multiple conductive cores 201 and the special-shaped cores 301 in the embodiment of the present application, the cross-sectional edge structure of the actual twisted cores can be approximately circular, corresponding to Figure 1 The dotted part in .
[0039] like Figure 2 As shown, in some embodiments, multiple internal load-bearing cores 100 are provided, and the multiple internal load-bearing cores 100 are sequentially twisted together to form a cable. Preferably, the cross-section of the internal load-bearing core 100 is circular. During the twisting process, the multiple round internal load-bearing cores 100 can achieve closer contact and more uniform stress distribution, further improving the overall mechanical properties of the cable. In addition, the circular cross-section load-bearing core is relatively simple to manufacture and process, reducing production complexity and cost.
[0040] Exemplarily, the internal load-bearing core 100 is a galvanized steel core, an aluminum-clad steel core, or an aluminum-clad Invar core. When a galvanized steel core is selected, the zinc coating provides additional corrosion protection for the steel core, enabling the steel core to maintain good performance in humid and corrosive environments. Galvanized steel cores are typically used in applications requiring high mechanical strength to ensure the stability of the cable under harsh conditions. When an aluminum-clad steel core is selected, while providing good mechanical properties, the aluminum-clad steel core reduces the overall weight of the cable and improves the convenience of installation and maintenance. In addition, the corrosion resistance of aluminum also enhances the durability of the cable in outdoor environments. When an aluminum-clad Invar core is selected, Invar has an extremely low coefficient of thermal expansion, which allows this material to perform well in environments with large temperature changes, reducing the impact of thermal expansion and contraction on the cable structure. The aluminum-clad Invar core is suitable for power transmission applications requiring high stability and durability.
[0041] like Figure 2 As shown, in some embodiments, there are 7 internal load-bearing cores 100, wherein one internal load-bearing core 100 is located in the center, and the remaining six internal load-bearing cores 100 are twisted around the central internal load-bearing core 100. This arrangement can further enhance the twisting strength of the internal load-bearing core 100 and ensure the tensile and deformation resistance of the cable.
[0042] like Figure 2 As shown, in some embodiments, the inner conductive layer 200 includes a plurality of conductive cores 201 twisted together, and the cross-sections of the plurality of conductive cores 201 are all circular with the same size.
[0043] Preferably, the conductive core 201 is an aluminum core, an aluminum-magnesium-silicon alloy core or an aluminum-zirconium alloy core. The aluminum alloy core has good conductivity and low density, and the aluminum material is light, which can reduce the overall weight of the cable. In the aluminum-silicon-magnesium alloy core, by adding silicon and magnesium elements to aluminum, the material strength and corrosion resistance of the conductive core 201 can also be improved, and it has good creep resistance. In the aluminum-zirconium alloy core, by adding zirconium elements, the high temperature performance and creep resistance of the material are significantly improved. This alloy can maintain high strength and stability under high temperature conditions.
[0044] It should be noted here that since the special-shaped core 301 and the conductive core 201 both play a conductive role, in the embodiment of the present application, the special-shaped core 301 can be set with reference to the form of the above-mentioned conductive core 201, that is, the special-shaped core 301 also adopts an aluminum core, an aluminum-magnesium-silicon alloy core or an aluminum-zirconium alloy core.
[0045] Still Figure 2 As shown, in some embodiments, the outer conductive layer 300 includes a plurality of special-shaped cores 301 twisted with each other, and the thickness of the special-shaped cores 301 gradually increases from the center of the outer conductive layer 300 to the end of its long axis.
[0046] Specifically, the cross section of the special-shaped core 301 is tile-shaped. The opposite inner and outer sides of the special-shaped core 301 are both arc-shaped. The overall shape of the special-shaped core 301 is approximately trapezoidal or fan-shaped. Multiple special-shaped cores 301 are twisted together to form a complete outer conductive layer 300.
[0047] In some embodiments, the inner arc length of the special-shaped core 301 is less than the outer arc length of the special-shaped core 301, and adjacent special-shaped cores 301 form surface contact. When the cross-section of the special-shaped core 301 is tile-shaped, the sides of the special-shaped core 301 adjacent to the inner edge or outer edge are both flat, and the side ends of the two adjacent special-shaped cores 301 are pressed together through surface contact. This design can ensure that the special-shaped cores 301 are arranged more closely together, increasing the conductive cross-sectional area of the cable. On the other hand, the twisted multiple special-shaped cores 301 also help improve the cable's anti-bending and anti-torsion performance, better distribute mechanical stress, and reduce single-point stress concentration problems.
[0048] The thickness of the special-shaped core 301 gradually increases along the direction from the center of the outer conductive layer 300 to the end of its long axis. Figure 1 or Figure 2 In general, the side with smaller curvature and relatively flat in the elliptical shape of the outer conductive layer 300 is the top surface or bottom surface in actual use. Figure 1 or Figure 2 In the placement example, when rain or ice and snow fall on the cable, the cable will rotate unevenly and eccentrically after bearing a certain degree of load, making the covering rain or ice and snow easier to fall off, thereby improving the anti-icing performance of the cable.
[0049] It should be noted that in the embodiment of the present application, the cross-section of the special-shaped wire core 301 is tile-shaped. The specific preparation method of the special-shaped wire core 301 can be carried out with reference to relevant technologies. For example, after selecting a suitable metal alloy material, a special drawing die or extrusion die is designed and used to draw or extrude the metal alloy material into a tile shape.
[0050] like Figure 2 As shown, the curvature of the inner and outer sides of the special-shaped core 301 is not consistent. When twisting multiple special-shaped cores 301, it is only necessary to ensure that the inner conductive layer 200 is pressed and fixed and the outer side is formed into an elliptical shape. Since the formed elliptical cable itself is a centrally symmetrical structure, when rain and snow cover the cable, the cable will deflect due to uneven force, thereby shaking off the rain and snow and reducing the risk of rain and snow covering it. In addition, the elliptical cable structure can also adaptively adjust its posture in severe weather such as strong winds and heavy rain. Compared with a circular cross-section, it can more effectively guide airflow through the surface, reduce wind resistance, and reduce the swing and vibration amplitude of the cable in severe weather.
[0051] Depend on Figure 1 and Figure 2 It can also be seen that in the anti-icing cable in the embodiment of the present application, the outer conductive layer 300 is symmetrically distributed along the center line, and the number of special-shaped cores 301 is an even number. An even number of special-shaped cores 301 can be more easily arranged symmetrically, which helps to maintain the mechanical balance of the cable; in addition, the symmetrical structure can evenly distribute stress, reduce the impact of uneven forces on the cable during installation and operation, and thus improve the stability and durability of the cable.
[0052] As an alternative implementation, the number of the conductive cores 201 is also an even number, which will not be described in detail in the embodiment of the present application.
[0053] In some embodiments, the anti-icing cable further includes an outer sheath, which wraps the outer conductive layer 300 , and the shape of the outer sheath is adapted to the configuration of the outer conductive layer 300 .
[0054] Exemplarily, the outer sheath is an electroplated layer or a polished layer. Generally, the electroplated layer can be zinc-plated, zinc-nickel-plated, or tin-plated. The thickness of the electroplated layer is relatively thin, but it must evenly cover the entire cable surface to ensure consistent protection. The polished layer can be formed by mechanically grinding the outer sheath. Providing an electroplated or polished layer can further reduce friction on the outer surface of the cable, making it smoother and preventing ice and snow from accumulating on the outer conductive layer 300.
[0055] It should be noted that, in some embodiments, the outer protective layer may be omitted, and polishing may be performed directly on the outer surface of the outer conductive layer 300 to make the outer surface of the outer conductive layer 300 smoother.
[0056] In the embodiment of the present application, an exemplary preparation process of the anti-icing cable is as follows:
[0057] Prepare raw materials such as the internal load-bearing core 100, the conductive core 201, and the special-shaped core 301; wherein the internal load-bearing core 100 and the conductive core 201 are both round strand structures, and the special-shaped core 301 is a special-shaped wire structure with a tile-shaped cross section;
[0058] The internal load-bearing core 100, the conductive core 201 and the special-shaped core 301 are twisted together in sequence from the inside to the outside to form an overall elliptical structure;
[0059] The twisted cables are surface treated, for example, by polishing or electroplating to make the outermost surface of the cables smooth, thereby improving the tightness between two adjacent special-shaped cores 301 .
[0060] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the following claims.
[0061] It should be understood that the present application is not limited to the exact structure described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.
Claims
1. An anti-icing cable, characterized in that: include: at least one internal load-bearing core (100); an internal conductive layer (200) wrapping the internal load-bearing core (100); At least one external conductive layer (300) wraps the internal conductive layer (200), wherein the inner edge of the cross section of the external conductive layer (300) is circular, and the outer edge of the cross section of the external conductive layer (300) is elliptical.
2. The anti-icing cable according to claim 1, characterized in that: The inner conductive layer (200) comprises a plurality of conductive cores (201) twisted together, and the cross-sections of the plurality of conductive cores (201) are all circular with the same size.
3. The anti-icing cable according to claim 2, characterized in that: The outer conductive layer (300) comprises a plurality of special-shaped wire cores (301) twisted together, and the thickness of the special-shaped wire cores (301) gradually increases from the center of the outer conductive layer (300) to the end of its long axis.
4. The anti-icing cable according to claim 3, characterized in that: The cross section of the special-shaped wire core (301) is tile-shaped; the inner arc length of the special-shaped wire core (301) is smaller than the outer arc length of the special-shaped wire core (301), and two adjacent special-shaped wire cores (301) form surface contact.
5. The anti-icing cable according to claim 3, characterized in that: The conductive core (201) is an aluminum core, an aluminum-magnesium-silicon alloy core, or an aluminum-zirconium alloy core; and / or the special-shaped core (301) is an aluminum core, an aluminum-magnesium-silicon alloy core, or an aluminum-zirconium alloy core.
6. The anti-icing cable according to claim 3, characterized in that: The number of at least one of the special-shaped wire cores (301) and the conductive wire cores (201) is an even number.
7. The anti-icing cable according to claim 1, characterized in that: It also includes an outer sheath, which wraps the outer conductive layer (300), and the shape of the outer sheath is adapted to the outer conductive layer (300).
8. The anti-icing cable according to claim 7, characterized in that: The outer protective layer is an electroplating layer or a polishing layer.
9. The anti-icing cable according to any one of claims 1 to 8, characterized in that: The internal load-bearing core (100) comprises a plurality of cores twisted together, and the cross section of the internal load-bearing core (100) is circular.
10. The anti-icing cable according to any one of claims 1 to 8, characterized in that: The internal load-bearing core (100) is a galvanized steel core, an aluminum-clad steel core, or an aluminum-clad Invar core.