Cable with special-shaped conductor

Abstract

The utility model discloses a cable with special-shaped conductors, which comprises a plurality of conductor assemblies, each conductor assembly comprises a circular conductor, a cross-linked polyethylene insulating layer and a plurality of conductor layers which are sequentially and mutually wrapped along the radial direction, and the conductor layer on the innermost layer is wrapped on the outer side of the circular conductor; each conductor layer comprises a plurality of special-shaped conductors which are spliced with one another; the crosslinked polyethylene insulating layer is coated on the outer side of each conductor layer on the outermost layer; and the protection layer wraps the outer side of the conductor assembly. A plurality of conductor layers are arranged, wherein the conductor layer on the innermost layer wraps the outer side of a circular conductor; each conductor layer comprises a plurality of special-shaped conductors which are spliced with one another, so that the overall compression coefficient is high, gaps among the special-shaped conductors are very small, resistance is reduced, and more loss of electric energy in transmission is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of cable technology, in particular to a cable with a special-shaped conductor. Background Art

[0002] If the conductor in the cable is a compressed round shape, the outer layer of the conductor has gaps to replace the gaps. Therefore, plastic needs to be filled into the gaps during production to compress the round copper conductor. However, cables with such special-shaped conductors have disadvantages. For example, the compressed round conductor increases the resistivity of the conductor after compression. The resistivity requires increasing the cross-sectional area to ensure that the conductor resistance meets the requirements, which increases the manufacturer's production costs. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art solutions, an embodiment of the present invention provides a cable with a special-shaped conductor.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A cable with a special-shaped conductor, comprising:

[0006] Conductor assemblies, each of the plurality of conductor assemblies comprising a circular conductor, a cross-linked polyethylene insulation layer, and a plurality of conductor layers sequentially wrapped radially with one another, wherein the innermost conductor layer is wrapped around the outside of the circular conductor; each conductor layer comprises a plurality of mutually spliced special-shaped conductors; the cross-linked polyethylene insulation layer is wrapped around the outside of each of the outermost conductor layers;

[0007] A protective layer is wrapped around the outer side of the conductor assembly.

[0008] As a preferred technical solution of the present invention, the radial thickness of each of the special-shaped conductors is equal.

[0009] As a preferred technical solution of the present invention, the radial thickness of each of the special-shaped conductors is 0.1 mm-7.5 mm.

[0010] As a preferred technical solution of the present invention, the width of the arc-shaped side edges on the same side of each of the special-shaped conductors in each of the conductor layers is equal.

[0011] As a preferred technical solution of the present invention, the width of the arc-shaped side of each of the special-shaped conductors in the innermost conductor layer gradually decreases to the width of the arc-shaped side of each of the special-shaped conductors in the outermost conductor layer.

[0012] As a preferred technical solution of the present invention, the number of the special-shaped conductors in the innermost conductor layer gradually increases toward the outermost conductor layer.

[0013] As a preferred technical solution of the present invention, the cross section of each of the special-shaped conductors is fan-shaped.

[0014] As a preferred technical solution of the present invention, the protective layer includes a non-woven wrapping tape and a PVC sheath; the non-woven wrapping tape is wrapped around each of the conductor components, and the PVC sheath is sleeved on the outside of the non-woven wrapping tape.

[0015] As a preferred technical solution of the present invention, a PP rope is filled between the conductor assembly and the inner side of the protective layer.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] By setting up multiple conductor layers, the innermost conductor layer is wrapped around the outside of the circular conductor; each conductor layer includes multiple special-shaped conductors spliced together, so the overall compression coefficient is high and the gaps between the special-shaped conductors are very small, thereby reducing resistance and preventing more loss of electric energy during transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a cross-sectional structural diagram of a cable with a special-shaped conductor according to an embodiment of the present utility model.

[0020] Figure 2 It is a cross-sectional structural diagram of a conductor assembly according to an embodiment of the present utility model.

[0021] Numbers in the figure

[0022] 1. Conductor assembly; 11. Round conductor; 12. Conductor layer; 121. Special-shaped conductor;

[0023] 2. Protective layer; 21. Non-woven wrapping tape; 22. PVC sheath;

[0024] 3. Cross-linked polyethylene insulation layer;

[0025] 4. Filled with PP rope. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clear, this application is further described in detail below with reference to the accompanying drawings and embodiments.

[0027] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0028] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it can be directly on the other element or indirectly on the other element.

[0029] When an element is referred to as being “connected to” another element, it can be directly connected to the another element or indirectly connected to the another element.

[0030] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0032] In the description of the present application, “plurality” means two or more, unless otherwise clearly defined.

[0033] In order to solve the technical problem in the prior art that the compressed circular conductor 11 causes the conductor resistivity to increase after compression, the resistivity needs to increase the cross-sectional area to ensure that the conductor resistance meets the requirements, which leads to an increase in the manufacturer's production cost; for this purpose, an embodiment of the present utility model provides a cable with a special-shaped conductor.

[0034] The following describes in detail the specific structure of a cable with a special-shaped conductor according to the embodiment of the present invention. Figure 1-2 As shown in FIG, the specific structure of the special-shaped conductor cable includes multiple conductor components 1 and a protective layer 2.

[0035] Specifically, each conductor assembly 1 includes a circular conductor 11, which has a circular cross-section and is arranged on the inner side of the center of the cable of the special-shaped conductor. The overall structure is relatively simple; the electric field on the outer side surface of the circular conductor 11 is balanced, which can avoid tip discharge caused by burrs.

[0036] The conductor assembly 1 further includes a plurality of conductor layers 12 radially wrapped around each other, wherein the innermost conductor layer 12 is wrapped around the outside of the circular conductor 11 ; each conductor layer 12 includes a plurality of special-shaped conductors 121 spliced together.

[0037] Specifically, the conductor layer 12 is provided with multiple layers. By arranging the multiple layers of conductor layers 12 to wrap each other, that is, the inner arc surface and the outer arc surface of each layer of the conductor layer 12 are wrapped with the adjacent conductor layer 12, this can increase the current capacity of the cable, and can also increase the conductor cross-sectional area to reduce resistance, thereby preventing more loss of electric energy during transmission.

[0038] Specifically, each conductor layer 12 includes multiple special-shaped conductors 121. By splicing each special-shaped conductor 121 with the adjacent special-shaped conductors 121, a complete conductor layer 12 is formed. With this arrangement, the multiple special-shaped conductors 121 can improve the bending and torsion resistance of the entire cable to a certain extent, and can also enhance the mechanical stability of the cable in various environments, thereby extending its service life. At the same time, it can also optimize current distribution and reduce electromagnetic interference (EMI) inside the cable, thereby improving the quality and stability of signal transmission. Therefore, it can be widely used in aerospace, automobile, communication and other high-tech industries.

[0039] It can be understood that the conductor layer 12 of the embodiment of the present invention is provided with 4 layers, which significantly improves the conductivity, durability and electromagnetic interference resistance of the cable; the conductor layer 12 can also be provided with more than 4 layers, and the specific number of layers is not limited here.

[0040] It should be noted that the number of the special-shaped conductors 121 in the innermost conductor layer 12 gradually increases toward the outermost conductor layer 12. For example, in conjunction with the above embodiment, the conductor layer 12 is provided with four layers, and the first conductor layer 12 (the conductor layer 12 covering the circular conductor 11) is provided with a total of six special-shaped conductors 121. Similarly, the second to fourth conductor layers 12 are provided with 12, 18, and 24 special-shaped conductors 121, respectively. Alternatively, for example, the number of special-shaped conductors 121 in the innermost conductor layer 12 is five, the number of special-shaped conductors 121 in the adjacent conductor layer 12 is nine, and the number of special-shaped conductors 121 in the adjacent conductor layer 12 is twelve. Therefore, the number of special-shaped conductors 121 from the innermost conductor layer 12 to the outermost conductor layer 12 can be set according to actual needs and is not limited here.

[0041] Each of the special-shaped conductors 121 in the embodiment of the present invention is fan-shaped.

[0042] The outer side of each outermost conductor layer is coated with a cross-linked polyethylene insulation layer 3, which is used to protect each conductor layer from damage, chemical corrosion, etc., and can also improve a certain insulation performance.

[0043] The protective layer 2 is wrapped around the outside of the conductor assembly 1. Specifically, the protective layer 2 is wrapped around the outermost conductor layer 12 to protect the inner conductor layer 12 of the cable from damage caused by collision with the outside, such as collision, scratching and twisting.

[0044] It is understandable that the protective layer 2 of the embodiment of the present invention includes a non-woven wrapping tape 21 and a PVC sheath 22 ; the non-woven wrapping tape 21 is wrapped around each conductor component, and the PVC sheath 22 is sleeved on the outside of the non-woven wrapping tape 21 .

[0045] Specifically, the non-woven fabric wrapping tape 21 has excellent insulation protection and is wrapped around each conductor component to ensure stable electrical performance. Specifically, by wrapping, the non-woven fabric can increase the overall structural strength and prevent the effects of external pressure or tensile forces. In addition, non-woven fabric materials generally have good fire resistance, which can effectively prevent the spread of flames and improve overall fire safety. The PVC sheath has excellent mechanical strength and wear resistance, which can effectively protect the conductor components inside the cable from damage by external physical forces. At the same time, it is also weather-resistant and is not easily corroded by sunlight, rain, and chemicals. Therefore, it is used to protect the internal conductor components and ensure long-term stable operation.

[0046] In summary, through multiple layers of conductor layers 12, the innermost conductor layer 12 is wrapped around the outside of the circular conductor 11; each conductor layer 12 includes a plurality of special-shaped conductors 121 spliced together, so the overall compression coefficient is high, and the gaps between the special-shaped conductors 121 are very small, thereby reducing resistance and preventing more loss of electric energy during transmission.

[0047] In some specific embodiments, the radial thickness of each special-shaped conductor 121 is equal. Specifically, in order to ensure the stability of the electrical performance of the cable, the radial thickness of the special-shaped conductors 121 of all conductor layers 12 is equal, so that the distance between the special-shaped conductors 121 is equal, thereby making the charge distribution more uniform and avoiding excessively high local electric field strength.

[0048] Since the different radial thicknesses of the special-shaped conductors 121 affect the heat distribution generated when current passes through, in a further embodiment, the radial thickness of each special-shaped conductor 121 is 0.1 mm-7.5 mm. Thus, the special-shaped conductors 121 with a radial thickness within the range of 0.1 mm-7.5 mm can dissipate heat more effectively, prevent the cable from overheating, and thus ensure the safety and reliability of the cable under high load conditions.

[0049] For example, a thinner special-shaped conductor 121 (such as a radial thickness of 0.1 mm) can improve the flexibility of the entire cable and is suitable for occasions that require frequent bending, while a thicker special-shaped conductor 121 (such as a radial thickness of 7.5 mm) can reduce resistance and inductance and improve conductivity. Therefore, according to actual application requirements, a suitable thickness can be selected within this range.

[0050] The present invention preferably uses the following three types of radial thicknesses of the special-shaped conductor 121, specifically as follows:

[0051] The special-shaped conductor 121 has a radial thickness of 0.5 mm. The special-shaped conductor 121 of this thickness has good flexibility. In situations where frequent bending or movement is required, thinner conductors are more adaptable and less likely to break or be damaged. Moreover, since the overall radial thickness is thinner, the overall weight of the cable is reduced, making installation and maintenance easier.

[0052] The special-shaped conductor 121 has a radial thickness of 3 mm. The special-shaped conductor 121 of this thickness has good mechanical strength and conductivity, and is suitable for occasions that need to withstand large mechanical stress or high current. It can also reduce resistance and inductance, reduce power loss, and improve cable efficiency and stability. It can also provide better thermal management performance to a certain extent, ensuring that the cable is not easy to overheat under high load conditions.

[0053] The special-shaped conductor 121 has a radial thickness of 5 mm, which is a relatively moderate thickness. It has excellent mechanical strength and insulation properties, can withstand certain pressure and tension, and maintain good electrical properties. Therefore, it is suitable for applications requiring higher safety and reliability, such as cable connections in large power systems or industrial equipment.

[0054] In some specific embodiments, the width of the arc-shaped side of each special-shaped conductor 121 on the same side of each conductor layer 12 is equal, and this arrangement is used to improve the uniformity of current distribution; for example, when transmitting current, since the width of the arc-shaped side of each special-shaped conductor 121 on the same side is equal, it can ensure that the current is distributed more evenly in the conductor, avoiding the situation where the local current is too large or too small. At the same time, the arrangement of the special-shaped conductors 121 inside the cable is more compact, which helps to improve the mechanical properties of the cable, so that it can still maintain stable transmission performance when facing external pressure, bending, etc.

[0055] It should be further explained that, since the conductor layer 12 of the embodiment of the present invention is provided with multiple layers, the arc-shaped side widths of the various special-shaped conductors 121 in the innermost conductor layer 12 gradually decrease to the arc-shaped side widths of the various special-shaped conductors 121 in the outermost conductor layer 12.

[0056] In some specific embodiments, a PP rope 4 is filled between the conductor assembly and the inner side of the protective layer.

[0057] Specifically, PP rope is a soft filling material used to fill the gap between the conductor components and the protective layer to prevent the conductor components inside the cable from being damaged by external extrusion or impact. In addition, it can also play a shock-proof and buffering role, reducing the mechanical stress generated by the cable with overall special-shaped conductors during transportation and installation.

[0058] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A cable with a special-shaped conductor, characterized in that: The cable with the special-shaped conductor comprises: Conductor assemblies, each of which comprises a circular conductor, a cross-linked polyethylene insulation layer, and multiple conductor layers radially wrapped around each other, wherein the innermost conductor layer is wrapped around the outside of the circular conductor; each conductor layer comprises a plurality of mutually spliced special-shaped conductors; the cross-linked polyethylene insulation layer is wrapped around the outside of each outermost conductor layer; A protective layer is wrapped around the outer side of the conductor assembly.

2. The cable with special-shaped conductors according to claim 1, characterized in that: The radial thickness of each of the special-shaped conductors is equal.

3. The cable with a special-shaped conductor according to any one of claims 1 or 2, characterized in that: The radial thickness of each of the special-shaped conductors is 0.1 mm to 7.5 mm.

4. The cable with special-shaped conductors according to claim 1, characterized in that: The arc-shaped side edges of each of the special-shaped conductors in each of the conductor layers on the same side have the same width.

5. The cable with a special-shaped conductor according to any one of claims 1 or 4, characterized in that: The width of the arc-shaped side of each of the special-shaped conductors in the innermost conductor layer decreases gradually to the width of the arc-shaped side of each of the special-shaped conductors in the outermost conductor layer.

6. The cable with special-shaped conductors according to claim 1, characterized in that: The number of the special-shaped conductors in the innermost conductor layer gradually increases toward the outermost conductor layer.

7. The cable with special-shaped conductors according to claim 1, characterized in that: The cross section of each of the special-shaped conductors is fan-shaped.

8. The cable with special-shaped conductors according to claim 1, characterized in that: The protective layer includes a non-woven wrapping tape and a PVC sheath; the non-woven wrapping tape is wrapped around each of the conductor components, and the PVC sheath is sleeved on the outside of the non-woven wrapping tape.

9. The cable with special-shaped conductors according to claim 1, characterized in that: A PP rope is filled between the conductor assembly and the inner side of the protective layer.

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