A flexible cable

Abstract

The utility model discloses a kind of flexible cables, belong to cable field, comprising: a plurality of conductor components, conductor component includes first tape, insulating layer and a plurality of conductor bodies twisted with each other, first tape and insulating layer are wrapped in a plurality of conductor bodies outside in turn;Second tape and outer sheath wrapped in the insulating layer outside of a plurality of conductor components in turn;Armour layer, including a plurality of steel wire units arranged at intervals, steel wire unit includes a plurality of steel wire bodies twisted with each other, a plurality of steel wire bodies of armour layer are located between second tape and outer sheath. Second tape includes the second ceramic silicon rubber tape between the insulating layer of a plurality of conductor components and outer sheath. Second tape also includes the second glass fiber tape wrapped in the second ceramic silicon rubber tape, outer sheath is wrapped in the second glass fiber tape. The technical effect of the utility model is that it is good in flexibility.

Description

Technical Field

[0001] This utility model relates to cables, and more particularly to a flexible cable. Background Technology

[0002] Cables are carriers of electrical energy and signals, typically consisting of several or groups of conductors, and are widely used in various fields such as power transmission, information communication, industrial equipment, new energy infrastructure, and special environments.

[0003] However, these cables generally use integral conductors and integral armor layers, which can lead to poor flexibility and make them easily damaged when bent. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to provide a flexible cable with good flexibility.

[0005] Technical solution:

[0006] A flexible cable, comprising:

[0007] A plurality of conductor assemblies, the conductor assembly comprising a first wrapping tape, an insulating layer, and a plurality of conductor bodies twisted together, wherein the first wrapping tape and the insulating layer are sequentially wrapped around the plurality of conductor bodies;

[0008] A second wrapping tape and an outer sheath are sequentially wrapped around the insulation layer of several conductor assemblies;

[0009] The armor layer includes a plurality of steel wire units spaced apart, each steel wire unit comprising a plurality of steel wire bodies twisted together, the plurality of steel wire bodies of the armor layer being located between the second wrapping tape and the outer sheath.

[0010] Optionally, the second wrapping tape includes a second ceramicized silicone rubber tape located between the insulating layer of the plurality of conductor assemblies and the outer sheath.

[0011] Optionally, the second strap may further include a second glass fiber strap wrapped around the second ceramicized silicone rubber strap, and the outer sheath is wrapped around the second glass fiber strap.

[0012] Optionally, it also includes a filler layer filled between the insulating layer of the conductor assembly and the second wrapping tape, the filler layer being made of aramid 1414.

[0013] Optionally, it also includes a crack-resistant sheath located between the second wrapping tape and a plurality of steel wire bodies of the armor layer, wherein the crack-resistant sheath is made of halogen-free, low-smoke, flame-retardant cable material blended from ethylene-vinyl acetate copolymer and high-density polyethylene.

[0014] Optionally, a third wrapping tape may also be included between several steel wire bodies of the armor layer and the outer sheath.

[0015] Optionally, the third wrapping tape includes a third ceramicized silicone rubber tape and a third glass fiber tape located sequentially between a plurality of steel wire bodies of the armor layer and the outer sheath.

[0016] Optionally, the spacing between adjacent wire units is equal.

[0017] Beneficial effects:

[0018] (1) The conductor body is used to transmit electrical energy and signals. Since several conductor bodies are twisted together, the conductor assembly is flexible, which makes the cable of this scheme flexible. In order to further increase the flexibility, the material of the conductor body is preferably a type 5 ultra-flexible aluminum alloy, which is made by adding elements such as copper, iron, magnesium and rare earth to the aluminum alloy.

[0019] (2) Since several steel wire bodies are twisted together, the armor layer is more flexible, which further facilitates the cable of this scheme to be more flexible. Attached Figure Description

[0020] Figure 1 This is a structural diagram of a flexible cable according to Embodiment 1 of this utility model;

[0021] Figure 2 This is a structural diagram of the conductor assembly of Embodiment 1 of this utility model;

[0022] In the diagram: 1. Conductor assembly; 11. Conductor body; 12. First wrapping tape; 13. Insulation layer; 2. Second wrapping tape; 21. Second ceramicized silicone rubber tape; 22. Second glass fiber tape; 3. Outer sheath; 4. Armor layer; 41. Steel wire unit; 411. Steel wire body; 5. Filler layer; 6. Crack-resistant protective layer; 7. Third wrapping tape; 71. Third ceramicized silicone rubber tape; 72. Third glass fiber tape. Detailed Implementation

[0023] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the utility model. Furthermore, it should be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. The terms "first," "second," etc., used in this utility model are provided for the convenience of describing the technical solution of this utility model and have no specific limiting effect; they are all general terms and do not constitute a limitation on the technical solution of this utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict, all of which are within the scope of protection claimed by this utility model.

[0025] Example 1

[0026] like Figures 1-2 This embodiment provides a flexible cable, including: a plurality of conductor assemblies 1, each conductor assembly 1 including a first wrapping tape 12, an insulation layer 13, and a plurality of conductor bodies 11 twisted together, the first wrapping tape 12 and the insulation layer 13 sequentially wrapping around the plurality of conductor bodies 11; a second wrapping tape 2 and an outer sheath 3 sequentially wrapping around the insulation layer 13 of the plurality of conductor assemblies 1; and an armor layer 4 including a plurality of steel wire units 41 spaced apart, each steel wire unit 41 including a plurality of steel wire bodies 411 twisted together, the plurality of steel wire bodies 411 of the armor layer 4 being located between the second wrapping tape 2 and the outer sheath 3.

[0027] Specifically, the conductor body 11 is used to transmit electrical energy and signals. Since several conductor bodies 11 are twisted together, the conductor assembly 1 exhibits good flexibility, thus contributing to the flexibility of the cable in this design. To further increase flexibility, the conductor body 11 is preferably made of a Class 5 ultra-flexible aluminum alloy, specifically by adding elements such as copper, iron, magnesium, and rare earth elements to the aluminum alloy. The first wrapping tape 12 is used to wrap several conductor bodies 11 to prevent loosening. The first wrapping tape 12 is preferably made of non-woven fabric. The insulation layer 13 is used for insulation. The insulation layer 13 is preferably made of a blend of linear low-density polyethylene and high-density polyethylene, which does not require cross-linking and possesses excellent electrical and mechanical properties. The design incorporates advanced performance characteristics and facilitates cable recycling after cable disposal. Both the second sheath 2 and the outer sheath 3 provide protection. The outer sheath 3 is preferably made of B1-grade halogen-free, low-smoke, flame-retardant polyolefin material, which features high flame retardancy, excellent anti-drip performance, and high mechanical strength. The spaced steel wire units 41 ensure both comprehensive armor coverage and low mass. The intertwining of the steel wire bodies 411 enhances the flexibility of the armor layer 4, further improving the cable's overall flexibility. The number of steel wire units 41 and steel wire bodies 411 is unrestricted and can be determined based on factors such as cable diameter and armor strength.

[0028] Furthermore, such as Figures 1-2 The second wrapping tape 2 includes a second ceramicized silicone rubber tape 21 located between the insulating layer 13 and the outer sheath 3 of a plurality of conductor components 1.

[0029] Specifically, the second ceramicized silicone rubber tape 21 will ceramicize and form a shell at 300-500℃ to prevent the insulation layer 13 from melting and dripping.

[0030] Furthermore, such as Figure 1 The second wrapping tape 2 also includes a second glass fiber tape 22 wrapped around the second ceramicized silicone rubber tape 21, and an outer sheath 3 wrapped around the second glass fiber tape 22.

[0031] Specifically, the second fiberglass strip 22 has high flame retardancy, preventing radial penetration of flames.

[0032] Furthermore, such as Figures 1-2 It also includes a filler layer 5 filled between the insulating layer 13 of the conductor assembly 1 and the second wrapping tape 2, the filler layer 5 being made of aramid 1414.

[0033] Specifically, the filler layer 5 is used to prevent cable deformation, and the aramid fiber 1414 makes the filler layer 5 have the characteristics of not being easily decomposed at high temperatures, having strong flexibility, and good insulation performance.

[0034] Furthermore, such as Figure 1It also includes a crack-resistant sheath 6 located between the second wrapping tape 2 and the armor layer 4 and several steel wire bodies 411. The crack-resistant sheath 6 is made of halogen-free, low-smoke, flame-retardant cable material made of ethylene-vinyl acetate copolymer and high-density polyethylene.

[0035] Specifically, the crack-resistant sheath 6 is used for crack resistance. The ethylene-vinyl acetate copolymer and high-density polyethylene facilitate the development of good high-temperature crack resistance in the crack-resistant sheath 6.

[0036] Furthermore, such as Figure 1 It also includes a third wrapping tape 7 located between several steel wire bodies 411 and the outer sheath 3 in the armor layer 4.

[0037] Specifically, the third package with strap 7 is used for protection.

[0038] Furthermore, such as Figure 1 The third wrapping tape 7 includes a third ceramicized silicone rubber tape 71 and a third glass fiber tape 72 located sequentially between a plurality of steel wire bodies 411 and the outer sheath 3 of the armor layer 4.

[0039] Specifically, the third ceramicized silicone rubber tape 71 will ceramicize and form a shell at 300-500℃, exhibiting good flame retardant properties; the third glass fiber tape 72 has high flame retardancy, preventing radial penetration of flames.

[0040] Furthermore, such as Figure 1 The spacing between adjacent wire units 41 is equal.

[0041] Specifically, equal spacing helps to ensure good uniformity of the armor layer 4.

[0042] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A flexible electrical cable, characterized in that, include: A plurality of conductor assemblies (1), the conductor assembly (1) including a first wrapping tape (12), an insulating layer (13) and a plurality of conductor bodies (11) twisted together, the first wrapping tape (12) and the insulating layer (13) being wrapped around the plurality of conductor bodies (11) in sequence; A second wrapping tape (2) and an outer sheath (3) are sequentially wrapped around the insulation layer (13) of a plurality of conductor assemblies (1). The armor layer (4) includes a plurality of steel wire units (41) spaced apart. Each steel wire unit (41) includes a plurality of steel wire bodies (411) twisted together. The plurality of steel wire bodies (411) of the armor layer (4) are located between the second wrapping tape (2) and the outer sheath (3).

2. A flexible electrical cable according to claim 1, characterised in that, The second wrapping tape (2) includes a second ceramicized silicone rubber tape (21) located between the insulating layer (13) of the plurality of conductor assemblies (1) and the outer sheath (3).

3. A flexible electrical cable according to claim 2, wherein, The second wrapping tape (2) also includes a second glass fiber tape (22) wrapped around the second ceramicized silicone rubber tape (21), and the outer sheath (3) is wrapped around the second glass fiber tape (22).

4. A flexible electrical cable according to any one of claims 1 to 3, characterised in that, It also includes a filler layer (5) filled between the insulating layer (13) of the conductor assembly (1) and the second wrapping tape (2), the filler layer (5) being made of aramid 1414.

5. A flexible electrical cable according to any one of claims 1 to 3, characterised in that, It also includes a crack-resistant sheath (6) located between the second wrapping tape (2) and the armor layer (4) and a plurality of wire bodies (411).

6. A flexible electrical cable according to any one of claims 1 to 3, characterised in that, It also includes a third wrapping tape (7) located between several wire bodies (411) of the armor layer (4) and the outer sheath (3).

7. A flexible electrical cable according to claim 6, wherein, The third wrapping tape (7) includes a third ceramicized silicone rubber tape (71) and a third glass fiber tape (72) located sequentially between a plurality of steel wire bodies (411) of the armor layer (4) and the outer sheath (3).

8. A flexible electrical cable according to any one of claims 1 to 3, characterised in that, The spacing between adjacent wire units (41) is equal.

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