Flame retardant parallel easy tear cable

Abstract

The utility model discloses a kind of flame-retardant parallel easy-to-tear cables, belong to cable field, comprising: a plurality of cable assemblies parallel to each other, cable assembly includes conductor, insulating layer, flame-retardant layer and first sheath that are sequentially wrapped settings, first sheath is connected with a plurality of heat-conducting arc rings in axial direction interval;Second sheath is wrapped in the first sheath outside of a plurality of cable assemblies;A plurality of tear strips are all connected in the second sheath.The heat-conducting arc ring includes: arc ring body;Two radial heat-conducting parts are connected to the both ends of arc ring body respectively;Wherein, arc ring body and radial heat-conducting part are all located in first sheath.The radial heat-conducting part includes: the circular bearing part connected with the end of arc ring body;A plurality of heat-conducting plates are arranged in the circular bearing part outside in circumferential direction interval;Wherein, circular bearing part and heat-conducting plate are all located in first sheath.The technical effect of the utility model is that it not only has good flame-retardant performance, and tear performance is good.

Description

Technical Field

[0001] This utility model relates to cables, and more particularly to a flame-retardant parallel easy-tear cable. Background Technology

[0002] A cable is an electrical device consisting of one or more insulated conductors (usually copper or aluminum) and an outer protective layer, used to transmit electrical energy, transmit information, or connect various electrical devices.

[0003] However, the cables have poor heat uniformity, which can easily lead to aging on the higher temperature side, resulting in poor flame retardant performance. At the same time, the cables have poor tear resistance, which is not conducive to later recycling and reuse. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to provide a flame-retardant parallel easy-tear cable, which not only has good flame-retardant properties but also good tear resistance.

[0005] Technical solution: A flame-retardant parallel tear-resistant cable, comprising: A plurality of parallel cable assemblies, the cable assembly comprising a conductor, an insulation layer, a flame-retardant layer and a first sheath sequentially wrapped together, wherein a plurality of heat-conducting arc-shaped rings are axially spaced within the first sheath. A second sheath that surrounds the first sheath of several of the cable assemblies; Several tear strips are connected to the second sheath.

[0006] Optionally, the thermally conductive arc-shaped ring includes: Arc-shaped ring body; Two radial heat-conducting parts are respectively connected to both ends of the arc-shaped ring body; Both the arc-shaped ring body and the radial heat-conducting part are located inside the first sheath.

[0007] Optionally, the radial heat-conducting portion includes: A circular bearing portion connected to the end of the arc-shaped ring body; A plurality of heat-conducting plates are spaced circumferentially outside the circular support portion; Both the circular support portion and the heat-conducting plate are located inside the first sheath.

[0008] Optionally, the arc-shaped ring body, the circular bearing part, and the heat-conducting plate are connected by an integral molding connection.

[0009] Optionally, the spacing between adjacent heat-conducting plates is equal.

[0010] Optionally, it may also include a plurality of cavities disposed within the second sheath, wherein the tear strip is bonded to the cavities by an adhesive.

[0011] Optionally, the conductor comprises a plurality of intertwined nickel-chromium alloy wires.

[0012] Optionally, the insulating layer is made of polyimide.

[0013] Beneficial effects: (1) The heat-conducting arc ring is used for heat conduction. When arranging, the side with the heat-conducting arc ring should face downwards and the side without the heat-conducting arc ring should face upwards. When sunlight shines on the side of the cable without the heat-conducting arc ring, it is easy to transfer heat through the heat-conducting arc ring to the side of the cable with the heat-conducting arc ring, so that the cable of this scheme has good heat uniformity, prevents the cable of this scheme from aging due to long-term high temperature, and ensures good flame retardancy. (2) Tear strips are used to increase the tear resistance of the cable in this scheme, thereby facilitating its recycling and reuse in the later stage. Attached Figure Description

[0014] Figure 1 This is a structural diagram of a flame-retardant parallel easy-tear cable according to Embodiment 1 of this utility model; Figure 2 This is a structural diagram of the cable assembly according to Embodiment 1 of this utility model; In the diagram: 1. Cable assembly; 11. Conductor; 12. Insulation layer; 13. Flame retardant layer; 14. First sheath; 15. Thermally conductive arc ring; 151. Arc ring body; 152. Radial thermally conductive part; 1521. Circular bearing part; 1522. Thermally conductive plate; 2. Second sheath; 21. Cavity; 3. Tear strip. Detailed Implementation

[0015] 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.

[0016] 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.

[0017] Example 1 like Figures 1-2 This embodiment provides a flame-retardant parallel easy-tear cable, including: a plurality of parallel cable assemblies 1, each cable assembly 1 including a conductor 11, an insulation layer 12, a flame-retardant layer 13 and a first sheath 14 sequentially wrapped around the cable assemblies 14, wherein a plurality of heat-conducting arc-shaped rings 15 are axially spaced within the first sheath 14; a second sheath 2 wrapped around the first sheath 14 of the plurality of cable assemblies 1; and a plurality of tear strips 3 all connected within the second sheath 2.

[0018] Specifically, cable assembly 1 is used to transmit electrical energy. Since several cable assemblies 1 are parallel to each other, their arrangement ensures good uniformity. Conductor 11 is used to transmit electrical energy. Insulation layer 12 is used for insulation. Flame-retardant layer 13 is used to increase flame-retardant performance; the material of flame-retardant layer 13 can be polytetrafluoroethylene (PTFE), etc. First sheath 14 is used to protect conductor 11, insulation layer 12, and flame-retardant layer 13, etc. The material of first sheath 14 can be halogen-free, low-smoke, flame-retardant polyolefin. Thermally conductive arc ring 15 is used for heat conduction. During arrangement, the side with thermally conductive arc ring 15 should face downwards, and the side without thermally conductive arc ring 15 should face upwards. When sunlight shines on the side of the cable without thermally conductive arc ring 15, heat can easily pass through the thermally conductive arc ring 15. The cable transmitted to this solution has a heat-conducting arc ring 15 on one side, which ensures good heat uniformity of the cable and prevents aging of one side of the cable due to long-term exposure to high temperatures, thus guaranteeing good flame retardancy. The shape of the heat-conducting arc ring 15 can be semi-circular, or larger or smaller than a semi-circular arc, and the material of the heat-conducting arc ring 15 can be copper, aluminum, or other materials with good thermal conductivity. The second sheath 2 is used to protect the cable assembly 1, and the material of the second sheath 2 can be halogen-free, low-smoke, flame-retardant polyolefin. The tear strip 3 is used to increase the tear resistance of the cable in this solution, thereby facilitating subsequent recycling and reuse. The cross-sectional shape of the tear strip 3 is preferably triangular, and the material of the tear strip 3 can be aramid fiber, glass fiber, etc.

[0019] Furthermore, such as Figure 2 The heat-conducting arc ring 15 includes: an arc ring body 151; and two radial heat-conducting parts 152 respectively connected to the two ends of the arc ring body 151; wherein the arc ring body 151 and the radial heat-conducting parts 152 are both located inside the first sheath 14.

[0020] Specifically, the arc-shaped ring body 151 is used to support two radial heat-conducting parts 152; the two radial heat-conducting parts 152 are used to increase the heat-conducting area, thereby facilitating the increase of heat conduction efficiency.

[0021] Furthermore, such as Figure 2 The radial heat-conducting part 152 includes: a circular support part 1521 connected to the end of the arc-shaped ring body 151; and a plurality of heat-conducting plates 1522 spaced circumferentially outside the circular support part 1521; wherein the circular support part 1521 and the heat-conducting plates 1522 are both located inside the first sheath 14.

[0022] Specifically, the circular support portion 1521 is used to support a plurality of heat-conducting plates 1522; the plurality of heat-conducting plates 1522 are used to increase the heat-conducting area, thereby facilitating the increase of heat conduction efficiency.

[0023] Furthermore, such as Figure 2The connection between the arc-shaped ring body 151, the circular bearing part 1521 and the heat-conducting plate 1522 is an integral molding connection.

[0024] Specifically, the one-piece molded connection facilitates the increase of the overall integrity of the heat-conducting arc ring 15.

[0025] Furthermore, such as Figure 2 The spacing between adjacent heat-conducting plates 1522 is equal.

[0026] Specifically, the spacing is equal, which facilitates the uniformity of heat conduction of several heat-conducting plates 1522.

[0027] Furthermore, such as Figure 1 It also includes several cavities 21 located within the second sheath 2, and the tear strip 3 is bonded to the cavity 21 by an adhesive.

[0028] Specifically, cavity 21 is used to accommodate tear strip 3; adhesive is used to increase the connection between tear strip 3 and inner wall of cavity 21, and to prevent tear strip 3 from moving during normal use of cable in this solution. When tearing is required, tools such as clamps and screwdrivers can be used to make the adhesive fail, thereby facilitating tearing. The adhesive can be made of hot melt adhesive.

[0029] Furthermore, such as Figure 2 Conductor 11 comprises several stranded nickel-chromium alloy wires.

[0030] Specifically, the nickel-chromium alloy wire makes the conductor 11 have good high-temperature resistance and stability.

[0031] Furthermore, such as Figure 2 The insulating layer 12 is made of polyimide.

[0032] Specifically, polyimide facilitates the insulation and mechanical properties of the insulating layer 12.

[0033] 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 flame-retardant parallel easy-tear cable, characterized in that, include: A plurality of parallel cable assemblies (1), wherein each cable assembly (1) includes a conductor (11), an insulation layer (12), a flame retardant layer (13) and a first sheath (14) sequentially wrapped together, and a plurality of heat-conducting arc-shaped rings (15) are connected axially in the first sheath (14). A second sheath (2) is wrapped around the first sheath (14) of several of the cable assemblies (1); Several tear strips (3) are connected to the second sheath (2).

2. The flame-retardant parallel easy-tear cable according to claim 1, characterized in that, The heat-conducting arc-shaped ring (15) includes: Arc-shaped ring body (151); Two radial heat-conducting parts (152) are respectively connected to both ends of the arc-shaped ring body (151); The arc-shaped ring body (151) and the radial heat-conducting part (152) are both located inside the first sheath (14).

3. The flame-retardant parallel easy-tear cable according to claim 2, characterized in that, The radial heat-conducting portion (152) includes: A circular bearing portion (1521) connected to the end of the arc-shaped ring body (151); A plurality of heat-conducting plates (1522) are spaced circumferentially outside the circular support portion (1521); The circular support portion (1521) and the heat-conducting plate (1522) are both located inside the first sheath (14).

4. The flame-retardant parallel easy-tear cable according to claim 3, characterized in that, The connection between the arc-shaped ring body (151), the circular support part (1521), and the heat-conducting plate (1522) is an integral molding connection.

5. A flame-retardant parallel easy-tear cable according to claim 3, characterized in that, The spacing between adjacent heat-conducting plates (1522) is equal.

6. A flame-retardant parallel easy-tear cable according to any one of claims 1-4, characterized in that, It also includes a plurality of cavities (21) disposed within the second sheath (2), wherein the tear strip (3) is bonded to the cavity (21) by an adhesive.

7. A flame-retardant parallel easy-tear cable according to any one of claims 1-4, characterized in that, The conductor (11) comprises several stranded nickel-chromium alloy wires.

8. A flame-retardant parallel easy-tear cable according to any one of claims 1-4, characterized in that, The insulating layer (12) is made of polyimide.

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